diff -druNp --no-dereference linux-libre-4.9-gnu/arch/alpha/include/asm/types.h linux-libre-4.9.52-gnu/arch/alpha/include/asm/types.h
--- linux-libre-4.9-gnu/arch/alpha/include/asm/types.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/alpha/include/asm/types.h	2017-09-27 08:40:05.000000000 -0400
@@ -1,6 +1,6 @@
 #ifndef _ALPHA_TYPES_H
 #define _ALPHA_TYPES_H
 
-#include <asm-generic/int-ll64.h>
+#include <uapi/asm/types.h>
 
 #endif /* _ALPHA_TYPES_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/alpha/include/uapi/asm/types.h linux-libre-4.9.52-gnu/arch/alpha/include/uapi/asm/types.h
--- linux-libre-4.9-gnu/arch/alpha/include/uapi/asm/types.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/alpha/include/uapi/asm/types.h	2017-09-27 08:40:05.000000000 -0400
@@ -9,8 +9,18 @@
  * need to be careful to avoid a name clashes.
  */
 
-#ifndef __KERNEL__
+/*
+ * This is here because we used to use l64 for alpha
+ * and we don't want to impact user mode with our change to ll64
+ * in the kernel.
+ *
+ * However, some user programs are fine with this.  They can
+ * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here.
+ */
+#if !defined(__SANE_USERSPACE_TYPES__) && !defined(__KERNEL__)
 #include <asm-generic/int-l64.h>
+#else
+#include <asm-generic/int-ll64.h>
 #endif
 
 #endif /* _UAPI_ALPHA_TYPES_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/alpha/kernel/osf_sys.c linux-libre-4.9.52-gnu/arch/alpha/kernel/osf_sys.c
--- linux-libre-4.9-gnu/arch/alpha/kernel/osf_sys.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/alpha/kernel/osf_sys.c	2017-09-27 08:40:05.000000000 -0400
@@ -1188,8 +1188,10 @@ SYSCALL_DEFINE4(osf_wait4, pid_t, pid, i
 	if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur)))
 		return -EFAULT;
 
-	err = 0;
-	err |= put_user(status, ustatus);
+	err = put_user(status, ustatus);
+	if (ret < 0)
+		return err ? err : ret;
+
 	err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec);
 	err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec);
 	err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/alpha/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/alpha/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/alpha/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/alpha/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -283,7 +283,7 @@ long arch_ptrace(struct task_struct *chi
 	/* When I and D space are separate, these will need to be fixed.  */
 	case PTRACE_PEEKTEXT: /* read word at location addr. */
 	case PTRACE_PEEKDATA:
-		copied = access_process_vm(child, addr, &tmp, sizeof(tmp),
+		copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp),
 				FOLL_FORCE);
 		ret = -EIO;
 		if (copied != sizeof(tmp))
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/include/asm/atomic.h linux-libre-4.9.52-gnu/arch/arc/include/asm/atomic.h
--- linux-libre-4.9-gnu/arch/arc/include/asm/atomic.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/include/asm/atomic.h	2017-09-27 08:40:05.000000000 -0400
@@ -17,10 +17,11 @@
 #include <asm/barrier.h>
 #include <asm/smp.h>
 
+#define ATOMIC_INIT(i)	{ (i) }
+
 #ifndef CONFIG_ARC_PLAT_EZNPS
 
 #define atomic_read(v)  READ_ONCE((v)->counter)
-#define ATOMIC_INIT(i)	{ (i) }
 
 #ifdef CONFIG_ARC_HAS_LLSC
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/include/asm/cacheflush.h linux-libre-4.9.52-gnu/arch/arc/include/asm/cacheflush.h
--- linux-libre-4.9-gnu/arch/arc/include/asm/cacheflush.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/include/asm/cacheflush.h	2017-09-27 08:40:05.000000000 -0400
@@ -85,6 +85,10 @@ void flush_anon_page(struct vm_area_stru
  */
 #define PG_dc_clean	PG_arch_1
 
+#define CACHE_COLORS_NUM	4
+#define CACHE_COLORS_MSK	(CACHE_COLORS_NUM - 1)
+#define CACHE_COLOR(addr)	(((unsigned long)(addr) >> (PAGE_SHIFT)) & CACHE_COLORS_MSK)
+
 /*
  * Simple wrapper over config option
  * Bootup code ensures that hardware matches kernel configuration
@@ -94,8 +98,6 @@ static inline int cache_is_vipt_aliasing
 	return IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
 }
 
-#define CACHE_COLOR(addr)	(((unsigned long)(addr) >> (PAGE_SHIFT)) & 1)
-
 /*
  * checks if two addresses (after page aligning) index into same cache set
  */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/include/asm/cache.h linux-libre-4.9.52-gnu/arch/arc/include/asm/cache.h
--- linux-libre-4.9-gnu/arch/arc/include/asm/cache.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/include/asm/cache.h	2017-09-27 08:40:05.000000000 -0400
@@ -89,7 +89,9 @@ extern unsigned long perip_base, perip_e
 #define ARC_REG_SLC_FLUSH	0x904
 #define ARC_REG_SLC_INVALIDATE	0x905
 #define ARC_REG_SLC_RGN_START	0x914
+#define ARC_REG_SLC_RGN_START1	0x915
 #define ARC_REG_SLC_RGN_END	0x916
+#define ARC_REG_SLC_RGN_END1	0x917
 
 /* Bit val in SLC_CONTROL */
 #define SLC_CTRL_IM		0x040
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/include/asm/delay.h linux-libre-4.9.52-gnu/arch/arc/include/asm/delay.h
--- linux-libre-4.9-gnu/arch/arc/include/asm/delay.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/include/asm/delay.h	2017-09-27 08:40:05.000000000 -0400
@@ -26,7 +26,9 @@ static inline void __delay(unsigned long
 	"	lp  1f			\n"
 	"	nop			\n"
 	"1:				\n"
-	: : "r"(loops));
+	:
+        : "r"(loops)
+        : "lp_count");
 }
 
 extern void __bad_udelay(void);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/include/asm/entry-arcv2.h linux-libre-4.9.52-gnu/arch/arc/include/asm/entry-arcv2.h
--- linux-libre-4.9-gnu/arch/arc/include/asm/entry-arcv2.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/include/asm/entry-arcv2.h	2017-09-27 08:40:05.000000000 -0400
@@ -16,6 +16,7 @@
 	;
 	; Now manually save: r12, sp, fp, gp, r25
 
+	PUSH	r30
 	PUSH	r12
 
 	; Saving pt_regs->sp correctly requires some extra work due to the way
@@ -72,6 +73,7 @@
 	POPAX	AUX_USER_SP
 1:
 	POP	r12
+	POP	r30
 
 .endm
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/include/asm/module.h linux-libre-4.9.52-gnu/arch/arc/include/asm/module.h
--- linux-libre-4.9-gnu/arch/arc/include/asm/module.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/include/asm/module.h	2017-09-27 08:40:05.000000000 -0400
@@ -14,13 +14,13 @@
 
 #include <asm-generic/module.h>
 
-#ifdef CONFIG_ARC_DW2_UNWIND
 struct mod_arch_specific {
+#ifdef CONFIG_ARC_DW2_UNWIND
 	void *unw_info;
 	int unw_sec_idx;
+#endif
 	const char *secstr;
 };
-#endif
 
 #define MODULE_PROC_FAMILY "ARC700"
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/include/asm/ptrace.h linux-libre-4.9.52-gnu/arch/arc/include/asm/ptrace.h
--- linux-libre-4.9-gnu/arch/arc/include/asm/ptrace.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/include/asm/ptrace.h	2017-09-27 08:40:05.000000000 -0400
@@ -84,7 +84,7 @@ struct pt_regs {
 	unsigned long fp;
 	unsigned long sp;	/* user/kernel sp depending on where we came from  */
 
-	unsigned long r12;
+	unsigned long r12, r30;
 
 	/*------- Below list auto saved by h/w -----------*/
 	unsigned long r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/Kconfig linux-libre-4.9.52-gnu/arch/arc/Kconfig
--- linux-libre-4.9-gnu/arch/arc/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -28,7 +28,7 @@ config ARC
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
 	select HAVE_MEMBLOCK
-	select HAVE_MOD_ARCH_SPECIFIC if ARC_DW2_UNWIND
+	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_OPROFILE
 	select HAVE_PERF_EVENTS
 	select HANDLE_DOMAIN_IRQ
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/kernel/entry.S linux-libre-4.9.52-gnu/arch/arc/kernel/entry.S
--- linux-libre-4.9-gnu/arch/arc/kernel/entry.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/kernel/entry.S	2017-09-27 08:40:05.000000000 -0400
@@ -92,6 +92,12 @@ ENTRY(EV_MachineCheck)
 	lr  r0, [efa]
 	mov r1, sp
 
+	; hardware auto-disables MMU, re-enable it to allow kernel vaddr
+	; access for say stack unwinding of modules for crash dumps
+	lr	r3, [ARC_REG_PID]
+	or	r3, r3, MMU_ENABLE
+	sr	r3, [ARC_REG_PID]
+
 	lsr  	r3, r2, 8
 	bmsk 	r3, r3, 7
 	brne    r3, ECR_C_MCHK_DUP_TLB, 1f
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/kernel/head.S linux-libre-4.9.52-gnu/arch/arc/kernel/head.S
--- linux-libre-4.9-gnu/arch/arc/kernel/head.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/kernel/head.S	2017-09-27 08:40:05.000000000 -0400
@@ -71,14 +71,14 @@ ENTRY(stext)
 	GET_CPU_ID  r5
 	cmp	r5, 0
 	mov.nz	r0, r5
-#ifdef CONFIG_ARC_SMP_HALT_ON_RESET
-	; Non-Master can proceed as system would be booted sufficiently
-	jnz	first_lines_of_secondary
-#else
+	bz	.Lmaster_proceed
+
 	; Non-Masters wait for Master to boot enough and bring them up
-	jnz	arc_platform_smp_wait_to_boot
-#endif
-	; Master falls thru
+	; when they resume, tail-call to entry point
+	mov	blink, @first_lines_of_secondary
+	j	arc_platform_smp_wait_to_boot
+
+.Lmaster_proceed:
 #endif
 
 	; Clear BSS before updating any globals
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/kernel/mcip.c linux-libre-4.9.52-gnu/arch/arc/kernel/mcip.c
--- linux-libre-4.9-gnu/arch/arc/kernel/mcip.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/kernel/mcip.c	2017-09-27 08:40:05.000000000 -0400
@@ -10,6 +10,7 @@
 
 #include <linux/smp.h>
 #include <linux/irq.h>
+#include <linux/irqchip/chained_irq.h>
 #include <linux/spinlock.h>
 #include <asm/irqflags-arcv2.h>
 #include <asm/mcip.h>
@@ -221,10 +222,13 @@ static irq_hw_number_t idu_first_hwirq;
 static void idu_cascade_isr(struct irq_desc *desc)
 {
 	struct irq_domain *idu_domain = irq_desc_get_handler_data(desc);
+	struct irq_chip *core_chip = irq_desc_get_chip(desc);
 	irq_hw_number_t core_hwirq = irqd_to_hwirq(irq_desc_get_irq_data(desc));
 	irq_hw_number_t idu_hwirq = core_hwirq - idu_first_hwirq;
 
+	chained_irq_enter(core_chip, desc);
 	generic_handle_irq(irq_find_mapping(idu_domain, idu_hwirq));
+	chained_irq_exit(core_chip, desc);
 }
 
 static int idu_irq_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hwirq)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/kernel/module.c linux-libre-4.9.52-gnu/arch/arc/kernel/module.c
--- linux-libre-4.9-gnu/arch/arc/kernel/module.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/kernel/module.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,8 +32,8 @@ int module_frob_arch_sections(Elf_Ehdr *
 #ifdef CONFIG_ARC_DW2_UNWIND
 	mod->arch.unw_sec_idx = 0;
 	mod->arch.unw_info = NULL;
-	mod->arch.secstr = secstr;
 #endif
+	mod->arch.secstr = secstr;
 	return 0;
 }
 
@@ -113,8 +113,10 @@ int apply_relocate_add(Elf32_Shdr *sechd
 
 	}
 
+#ifdef CONFIG_ARC_DW2_UNWIND
 	if (strcmp(module->arch.secstr+sechdrs[tgtsec].sh_name, ".eh_frame") == 0)
 		module->arch.unw_sec_idx = tgtsec;
+#endif
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/kernel/smp.c linux-libre-4.9.52-gnu/arch/arc/kernel/smp.c
--- linux-libre-4.9-gnu/arch/arc/kernel/smp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/kernel/smp.c	2017-09-27 08:40:05.000000000 -0400
@@ -90,22 +90,37 @@ void __init smp_cpus_done(unsigned int m
  */
 static volatile int wake_flag;
 
+#ifdef CONFIG_ISA_ARCOMPACT
+
+#define __boot_read(f)		f
+#define __boot_write(f, v)	f = v
+
+#else
+
+#define __boot_read(f)		arc_read_uncached_32(&f)
+#define __boot_write(f, v)	arc_write_uncached_32(&f, v)
+
+#endif
+
 static void arc_default_smp_cpu_kick(int cpu, unsigned long pc)
 {
 	BUG_ON(cpu == 0);
-	wake_flag = cpu;
+
+	__boot_write(wake_flag, cpu);
 }
 
 void arc_platform_smp_wait_to_boot(int cpu)
 {
-	while (wake_flag != cpu)
+	/* for halt-on-reset, we've waited already */
+	if (IS_ENABLED(CONFIG_ARC_SMP_HALT_ON_RESET))
+		return;
+
+	while (__boot_read(wake_flag) != cpu)
 		;
 
-	wake_flag = 0;
-	__asm__ __volatile__("j @first_lines_of_secondary	\n");
+	__boot_write(wake_flag, 0);
 }
 
-
 const char *arc_platform_smp_cpuinfo(void)
 {
 	return plat_smp_ops.info ? : "";
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/kernel/unaligned.c linux-libre-4.9.52-gnu/arch/arc/kernel/unaligned.c
--- linux-libre-4.9-gnu/arch/arc/kernel/unaligned.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/kernel/unaligned.c	2017-09-27 08:40:05.000000000 -0400
@@ -241,8 +241,9 @@ int misaligned_fixup(unsigned long addre
 	if (state.fault)
 		goto fault;
 
+	/* clear any remanants of delay slot */
 	if (delay_mode(regs)) {
-		regs->ret = regs->bta;
+		regs->ret = regs->bta & ~1U;
 		regs->status32 &= ~STATUS_DE_MASK;
 	} else {
 		regs->ret += state.instr_len;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/mm/cache.c linux-libre-4.9.52-gnu/arch/arc/mm/cache.c
--- linux-libre-4.9-gnu/arch/arc/mm/cache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/mm/cache.c	2017-09-27 08:40:05.000000000 -0400
@@ -562,6 +562,7 @@ noinline void slc_op(phys_addr_t paddr,
 	static DEFINE_SPINLOCK(lock);
 	unsigned long flags;
 	unsigned int ctrl;
+	phys_addr_t end;
 
 	spin_lock_irqsave(&lock, flags);
 
@@ -591,8 +592,16 @@ noinline void slc_op(phys_addr_t paddr,
 	 * END needs to be setup before START (latter triggers the operation)
 	 * END can't be same as START, so add (l2_line_sz - 1) to sz
 	 */
-	write_aux_reg(ARC_REG_SLC_RGN_END, (paddr + sz + l2_line_sz - 1));
-	write_aux_reg(ARC_REG_SLC_RGN_START, paddr);
+	end = paddr + sz + l2_line_sz - 1;
+	if (is_pae40_enabled())
+		write_aux_reg(ARC_REG_SLC_RGN_END1, upper_32_bits(end));
+
+	write_aux_reg(ARC_REG_SLC_RGN_END, lower_32_bits(end));
+
+	if (is_pae40_enabled())
+		write_aux_reg(ARC_REG_SLC_RGN_START1, upper_32_bits(paddr));
+
+	write_aux_reg(ARC_REG_SLC_RGN_START, lower_32_bits(paddr));
 
 	while (read_aux_reg(ARC_REG_SLC_CTRL) & SLC_CTRL_BUSY);
 
@@ -979,11 +988,16 @@ void arc_cache_init(void)
 		/* check for D-Cache aliasing on ARCompact: ARCv2 has PIPT */
 		if (is_isa_arcompact()) {
 			int handled = IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
+			int num_colors = dc->sz_k/dc->assoc/TO_KB(PAGE_SIZE);
 
-			if (dc->alias && !handled)
-				panic("Enable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
-			else if (!dc->alias && handled)
+			if (dc->alias) {
+				if (!handled)
+					panic("Enable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
+				if (CACHE_COLORS_NUM != num_colors)
+					panic("CACHE_COLORS_NUM not optimized for config\n");
+			} else if (!dc->alias && handled) {
 				panic("Disable CONFIG_ARC_CACHE_VIPT_ALIASING\n");
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/mm/mmap.c linux-libre-4.9.52-gnu/arch/arc/mm/mmap.c
--- linux-libre-4.9-gnu/arch/arc/mm/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/mm/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -64,7 +64,7 @@ arch_get_unmapped_area(struct file *filp
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arc/mm/tlb.c linux-libre-4.9.52-gnu/arch/arc/mm/tlb.c
--- linux-libre-4.9-gnu/arch/arc/mm/tlb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arc/mm/tlb.c	2017-09-27 08:40:05.000000000 -0400
@@ -896,9 +896,6 @@ void do_tlb_overlap_fault(unsigned long
 
 	local_irq_save(flags);
 
-	/* re-enable the MMU */
-	write_aux_reg(ARC_REG_PID, MMU_ENABLE | read_aux_reg(ARC_REG_PID));
-
 	/* loop thru all sets of TLB */
 	for (set = 0; set < mmu->sets; set++) {
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/am33xx.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/am33xx.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/am33xx.dtsi	2016-12-11 18:00:49.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/am33xx.dtsi	2017-09-27 15:16:55.000000000 -0400
@@ -16,6 +16,7 @@
 	interrupt-parent = <&intc>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c0;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/am4372.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/am4372.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/am4372.dtsi	2016-12-11 18:00:52.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/am4372.dtsi	2017-09-27 15:16:58.000000000 -0400
@@ -16,6 +16,7 @@
 	interrupt-parent = <&wakeupgen>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	memory@0 {
 		device_type = "memory";
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/am57xx-idk-common.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -294,7 +294,7 @@
 };
 
 &usb2 {
-	dr_mode = "otg";
+	dr_mode = "peripheral";
 };
 
 &mmc2 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/armada-388-gp.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/armada-388-gp.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/armada-388-gp.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/armada-388-gp.dts	2017-09-27 08:40:05.000000000 -0400
@@ -75,7 +75,7 @@
 					pinctrl-names = "default";
 					pinctrl-0 = <&pca0_pins>;
 					interrupt-parent = <&gpio0>;
-					interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+					interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
 					gpio-controller;
 					#gpio-cells = <2>;
 					interrupt-controller;
@@ -87,7 +87,7 @@
 					compatible = "nxp,pca9555";
 					pinctrl-names = "default";
 					interrupt-parent = <&gpio0>;
-					interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+					interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
 					gpio-controller;
 					#gpio-cells = <2>;
 					interrupt-controller;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/at91-sama5d2_xplained.dts	2017-09-27 08:40:05.000000000 -0400
@@ -148,6 +148,8 @@
 			uart1: serial@f8020000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_uart1_default>;
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				status = "okay";
 			};
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/at91-sama5d3_xplained.dts	2017-09-27 08:40:05.000000000 -0400
@@ -162,9 +162,10 @@
 			};
 
 			adc0: adc@f8018000 {
+				atmel,adc-vref = <3300>;
+				atmel,adc-channels-used = <0xfe>;
 				pinctrl-0 = <
 					&pinctrl_adc0_adtrg
-					&pinctrl_adc0_ad0
 					&pinctrl_adc0_ad1
 					&pinctrl_adc0_ad2
 					&pinctrl_adc0_ad3
@@ -172,8 +173,6 @@
 					&pinctrl_adc0_ad5
 					&pinctrl_adc0_ad6
 					&pinctrl_adc0_ad7
-					&pinctrl_adc0_ad8
-					&pinctrl_adc0_ad9
 					>;
 				status = "okay";
 			};
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/at91-sama5d4_xplained.dts	2017-09-27 08:40:05.000000000 -0400
@@ -110,6 +110,8 @@
 			};
 
 			usart3: serial@fc00c000 {
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
 				status = "okay";
 			};
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm283x.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm283x.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm283x.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm283x.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -104,7 +104,7 @@
 			reg = <0x7e104000 0x10>;
 		};
 
-		mailbox: mailbox@7e00b800 {
+		mailbox: mailbox@7e00b880 {
 			compatible = "brcm,bcm2835-mbox";
 			reg = <0x7e00b880 0x40>;
 			interrupts = <0 1>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm5301x.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm5301x.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm5301x.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm5301x.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -66,14 +66,14 @@
 		timer@20200 {
 			compatible = "arm,cortex-a9-global-timer";
 			reg = <0x20200 0x100>;
-			interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_PPI 11 IRQ_TYPE_EDGE_RISING>;
 			clocks = <&periph_clk>;
 		};
 
 		local-timer@20600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0x20600 0x100>;
-			interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_PPI 13 IRQ_TYPE_EDGE_RISING>;
 			clocks = <&periph_clk>;
 		};
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958522er.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958522er.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958522er.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958522er.dts	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@
 	gpio-restart {
 		compatible = "gpio-restart";
 		gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
+		open-source;
 		priority = <200>;
 	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958525er.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958525er.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958525er.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958525er.dts	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@
 	gpio-restart {
 		compatible = "gpio-restart";
 		gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
+		open-source;
 		priority = <200>;
 	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958525xmc.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958525xmc.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958525xmc.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958525xmc.dts	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@
 	gpio-restart {
 		compatible = "gpio-restart";
 		gpios = <&gpioa 31 GPIO_ACTIVE_LOW>;
+		open-source;
 		priority = <200>;
 	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958622hr.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958622hr.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958622hr.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958622hr.dts	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@
 	gpio-restart {
 		compatible = "gpio-restart";
 		gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
+		open-source;
 		priority = <200>;
 	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958623hr.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958623hr.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958623hr.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958623hr.dts	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@
 	gpio-restart {
 		compatible = "gpio-restart";
 		gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
+		open-source;
 		priority = <200>;
 	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958625hr.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958625hr.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm958625hr.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm958625hr.dts	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@
 	gpio-restart {
 		compatible = "gpio-restart";
 		gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
+		open-source;
 		priority = <200>;
 	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/bcm988312hr.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm988312hr.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/bcm988312hr.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/bcm988312hr.dts	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@
 	gpio-restart {
 		compatible = "gpio-restart";
 		gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
+		open-source;
 		priority = <200>;
 	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/da850-evm.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/da850-evm.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/da850-evm.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/da850-evm.dts	2017-09-27 08:40:05.000000000 -0400
@@ -99,6 +99,7 @@
 				#size-cells = <1>;
 				compatible = "m25p64";
 				spi-max-frequency = <30000000>;
+				m25p,fast-read;
 				reg = <0>;
 				partition@0 {
 					label = "U-Boot-SPL";
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/dm814x.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/dm814x.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/dm814x.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/dm814x.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -12,6 +12,7 @@
 	interrupt-parent = <&intc>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c1;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/dm816x.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/dm816x.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/dm816x.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/dm816x.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -12,6 +12,7 @@
 	interrupt-parent = <&intc>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c1;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/dra7.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/dra7.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/dra7.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/dra7.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -18,6 +18,7 @@
 
 	compatible = "ti,dra7xx";
 	interrupt-parent = <&crossbar_mpu>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c1;
@@ -1376,6 +1377,7 @@
 			phy-names = "sata-phy";
 			clocks = <&sata_ref_clk>;
 			ti,hwmods = "sata";
+			ports-implemented = <0x1>;
 		};
 
 		rtc: rtc@48838000 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/imx31.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx31.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/imx31.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx31.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -30,11 +30,11 @@
 		};
 	};
 
-	avic: avic-interrupt-controller@60000000 {
+	avic: interrupt-controller@68000000 {
 		compatible = "fsl,imx31-avic", "fsl,avic";
 		interrupt-controller;
 		#interrupt-cells = <1>;
-		reg = <0x60000000 0x100000>;
+		reg = <0x68000000 0x100000>;
 	};
 
 	soc {
@@ -118,13 +118,6 @@
 				interrupts = <19>;
 				clocks = <&clks 25>;
 			};
-
-			clks: ccm@53f80000{
-				compatible = "fsl,imx31-ccm";
-				reg = <0x53f80000 0x4000>;
-				interrupts = <0 31 0x04 0 53 0x04>;
-				#clock-cells = <1>;
-			};
 		};
 
 		aips@53f00000 { /* AIPS2 */
@@ -134,6 +127,13 @@
 			reg = <0x53f00000 0x100000>;
 			ranges;
 
+			clks: ccm@53f80000{
+				compatible = "fsl,imx31-ccm";
+				reg = <0x53f80000 0x4000>;
+				interrupts = <31>, <53>;
+				#clock-cells = <1>;
+			};
+
 			gpt: timer@53f90000 {
 				compatible = "fsl,imx31-gpt";
 				reg = <0x53f90000 0x4000>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/imx6dl.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6dl.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/imx6dl.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6dl.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -137,7 +137,7 @@
 &gpio4 {
 	gpio-ranges = <&iomuxc  5 136 1>, <&iomuxc  6 145 1>, <&iomuxc  7 150 1>,
 		      <&iomuxc  8 146 1>, <&iomuxc  9 151 1>, <&iomuxc 10 147 1>,
-		      <&iomuxc 11 151 1>, <&iomuxc 12 148 1>, <&iomuxc 13 153 1>,
+		      <&iomuxc 11 152 1>, <&iomuxc 12 148 1>, <&iomuxc 13 153 1>,
 		      <&iomuxc 14 149 1>, <&iomuxc 15 154 1>, <&iomuxc 16  39 7>,
 		      <&iomuxc 23  56 1>, <&iomuxc 24  61 7>, <&iomuxc 31  46 1>;
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/imx6q-cm-fx6.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6q-cm-fx6.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/imx6q-cm-fx6.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6q-cm-fx6.dts	2017-09-27 08:40:05.000000000 -0400
@@ -183,7 +183,6 @@
 			MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK	0x1b0b0
 			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
 			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
-			MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0x4001b0a8
 		>;
 	};
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6qdl-nitrogen6_max.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -319,8 +319,6 @@
 		compatible = "fsl,imx6q-nitrogen6_max-sgtl5000",
 			     "fsl,imx-audio-sgtl5000";
 		model = "imx6q-nitrogen6_max-sgtl5000";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_sgtl5000>;
 		ssi-controller = <&ssi1>;
 		audio-codec = <&codec>;
 		audio-routing =
@@ -402,6 +400,8 @@
 
 	codec: sgtl5000@0a {
 		compatible = "fsl,sgtl5000";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sgtl5000>;
 		reg = <0x0a>;
 		clocks = <&clks IMX6QDL_CLK_CKO>;
 		VDDA-supply = <&reg_2p5v>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/imx6sx-sdb.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6sx-sdb.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/imx6sx-sdb.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/imx6sx-sdb.dts	2017-09-27 08:40:05.000000000 -0400
@@ -12,23 +12,6 @@
 	model = "Freescale i.MX6 SoloX SDB RevB Board";
 };
 
-&cpu0 {
-	operating-points = <
-		/* kHz    uV */
-		996000  1250000
-		792000  1175000
-		396000  1175000
-		198000  1175000
-		>;
-	fsl,soc-operating-points = <
-		/* ARM kHz      SOC uV */
-		996000	1250000
-		792000	1175000
-		396000	1175000
-		198000  1175000
-	>;
-};
-
 &i2c1 {
 	clock-frequency = <100000>;
 	pinctrl-names = "default";
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/logicpd-som-lv-37xx-devkit.dts	2017-09-27 08:40:05.000000000 -0400
@@ -158,7 +158,7 @@
 &mmc1 {
 	interrupts-extended = <&intc 83 &omap3_pmx_core 0x11a>;
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc1_pins &mmc1_cd>;
+	pinctrl-0 = <&mmc1_pins>;
 	wp-gpios = <&gpio4 30 GPIO_ACTIVE_HIGH>;		/* gpio_126 */
 	cd-gpios = <&gpio4 14 IRQ_TYPE_LEVEL_LOW>;		/* gpio_110 */
 	vmmc-supply = <&vmmc1>;
@@ -193,7 +193,8 @@
 			OMAP3_CORE1_IOPAD(0x214a, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat1.sdmmc1_dat1 */
 			OMAP3_CORE1_IOPAD(0x214c, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat2.sdmmc1_dat2 */
 			OMAP3_CORE1_IOPAD(0x214e, PIN_INPUT | MUX_MODE0)	/* sdmmc1_dat3.sdmmc1_dat3 */
-			OMAP3_CORE1_IOPAD(0x2132, PIN_INPUT_PULLUP | MUX_MODE4)	/* cam_strobe.gpio_126 sdmmc1_wp*/
+			OMAP3_CORE1_IOPAD(0x2132, PIN_INPUT_PULLUP | MUX_MODE4)	/* cam_strobe.gpio_126 */
+			OMAP3_CORE1_IOPAD(0x212c, PIN_INPUT_PULLUP | MUX_MODE4)	/* cam_d11.gpio_110 */
 		>;
 	};
 
@@ -242,12 +243,6 @@
 			OMAP3_WKUP_IOPAD(0x2a16, PIN_OUTPUT | PIN_OFF_OUTPUT_LOW | MUX_MODE4)       /* sys_boot6.gpio_8 */
 		>;
 	};
-
-	mmc1_cd: pinmux_mmc1_cd {
-		pinctrl-single,pins = <
-			OMAP3_WKUP_IOPAD(0x212c, PIN_INPUT_PULLUP | MUX_MODE4)	/* cam_d11.gpio_110 */
-		>;
-	};
 };
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/logicpd-torpedo-som.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -121,7 +121,7 @@
 &i2c3 {
 	clock-frequency = <400000>;
 	at24@50 {
-		compatible = "at24,24c02";
+		compatible = "atmel,24c64";
 		readonly;
 		reg = <0x50>;
 	};
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/Makefile linux-libre-4.9.52-gnu/arch/arm/boot/dts/Makefile
--- linux-libre-4.9-gnu/arch/arm/boot/dts/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -485,6 +485,7 @@ dtb-$(CONFIG_ARCH_OMAP3) += \
 	am3517-evm.dtb \
 	am3517_mt_ventoux.dtb \
 	logicpd-torpedo-37xx-devkit.dtb \
+	logicpd-som-lv-37xx-devkit.dtb \
 	omap3430-sdp.dtb \
 	omap3-beagle.dtb \
 	omap3-beagle-xm.dtb \
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/omap2.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap2.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/omap2.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap2.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,7 @@
 	interrupt-parent = <&intc>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	aliases {
 		serial0 = &uart1;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/omap3.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap3.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/omap3.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap3.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,7 @@
 	interrupt-parent = <&intc>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c1;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/omap3-n900.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap3-n900.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/omap3-n900.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap3-n900.dts	2017-09-27 08:40:05.000000000 -0400
@@ -734,6 +734,8 @@
 	vmmc_aux-supply = <&vsim>;
 	bus-width = <8>;
 	non-removable;
+	no-sdio;
+	no-sd;
 };
 
 &mmc3 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/omap4.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap4.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/omap4.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap4.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -15,6 +15,7 @@
 	interrupt-parent = <&wakeupgen>;
 	#address-cells = <1>;
 	#size-cells = <1>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c1;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/omap5.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap5.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/omap5.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/omap5.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,7 @@
 
 	compatible = "ti,omap5";
 	interrupt-parent = <&wakeupgen>;
+	chosen { };
 
 	aliases {
 		i2c0 = &i2c1;
@@ -985,6 +986,7 @@
 			phy-names = "sata-phy";
 			clocks = <&sata_ref_clk>;
 			ti,hwmods = "sata";
+			ports-implemented = <0x1>;
 		};
 
 		dss: dss@58000000 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/qcom-ipq8064.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/qcom-ipq8064.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/qcom-ipq8064.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/qcom-ipq8064.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -65,13 +65,13 @@
 		cxo_board {
 			compatible = "fixed-clock";
 			#clock-cells = <0>;
-			clock-frequency = <19200000>;
+			clock-frequency = <25000000>;
 		};
 
 		pxo_board {
 			compatible = "fixed-clock";
 			#clock-cells = <0>;
-			clock-frequency = <27000000>;
+			clock-frequency = <25000000>;
 		};
 
 		sleep_clk: sleep_clk {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/r8a7794.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/r8a7794.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/r8a7794.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/r8a7794.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -319,7 +319,7 @@
 				  "ch12";
 		clocks = <&mstp5_clks R8A7794_CLK_AUDIO_DMAC0>;
 		clock-names = "fck";
-		power-domains = <&cpg_clocks>;
+		power-domains = <&sysc R8A7794_PD_ALWAYS_ON>;
 		#dma-cells = <1>;
 		dma-channels = <13>;
 	};
@@ -1025,8 +1025,7 @@
 			clocks = <&extal_clk &usb_extal_clk>;
 			#clock-cells = <1>;
 			clock-output-names = "main", "pll0", "pll1", "pll3",
-					     "lb", "qspi", "sdh", "sd0", "z",
-					     "rcan";
+					     "lb", "qspi", "sdh", "sd0", "rcan";
 			#power-domain-cells = <0>;
 		};
 		/* Variable factor clocks */
@@ -1260,7 +1259,7 @@
 		mstp7_clks: mstp7_clks@e615014c {
 			compatible = "renesas,r8a7794-mstp-clocks", "renesas,cpg-mstp-clocks";
 			reg = <0 0xe615014c 0 4>, <0 0xe61501c4 0 4>;
-			clocks = <&mp_clk>, <&mp_clk>,
+			clocks = <&mp_clk>, <&hp_clk>,
 				 <&zs_clk>, <&p_clk>, <&p_clk>, <&zs_clk>,
 				 <&zs_clk>, <&p_clk>, <&p_clk>, <&p_clk>, <&p_clk>,
 				 <&zx_clk>;
@@ -1483,7 +1482,7 @@
 			      "mix.0", "mix.1",
 			      "dvc.0", "dvc.1",
 			      "clk_a", "clk_b", "clk_c", "clk_i";
-		power-domains = <&cpg_clocks>;
+		power-domains = <&sysc R8A7794_PD_ALWAYS_ON>;
 
 		status = "disabled";
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/sama5d2.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/sama5d2.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/sama5d2.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/sama5d2.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -266,7 +266,7 @@
 		};
 
 		usb1: ohci@00400000 {
-			compatible = "atmel,sama5d2-ohci", "usb-ohci";
+			compatible = "atmel,at91rm9200-ohci", "usb-ohci";
 			reg = <0x00400000 0x100000>;
 			interrupts = <41 IRQ_TYPE_LEVEL_HIGH 2>;
 			clocks = <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/stih407-family.dtsi linux-libre-4.9.52-gnu/arch/arm/boot/dts/stih407-family.dtsi
--- linux-libre-4.9-gnu/arch/arm/boot/dts/stih407-family.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/stih407-family.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -680,6 +680,7 @@
 				phy-names	= "usb2-phy", "usb3-phy";
 				phys		= <&usb2_picophy0>,
 						  <&phy_port2 PHY_TYPE_USB3>;
+				snps,dis_u3_susphy_quirk;
 			};
 		};
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/sun7i-a20-bananapi-m1-plus.dts	2017-09-27 08:40:05.000000000 -0400
@@ -227,3 +227,8 @@
 	pinctrl-0 = <&uart0_pins_a>;
 	status = "okay";
 };
+
+&usbphy {
+	/* VBUS on usb host ports are tied to DC5V and therefore always on */
+	status = "okay";
+};
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts	2017-09-27 08:40:05.000000000 -0400
@@ -167,7 +167,7 @@
 					reg = <8>;
 					label = "cpu";
 					ethernet = <&gmac>;
-					phy-mode = "rgmii";
+					phy-mode = "rgmii-txid";
 					fixed-link {
 						speed = <1000>;
 						full-duplex;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2-emmc.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2-emmc.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2-emmc.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2-emmc.dts	2017-09-27 08:40:05.000000000 -0400
@@ -56,7 +56,7 @@
 };
 
 &pio {
-	mmc2_pins_nrst: mmc2@0 {
+	mmc2_pins_nrst: mmc2-rst-pin {
 		allwinner,pins = "PC16";
 		allwinner,function = "gpio_out";
 		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/tango4-vantage-1172.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/tango4-vantage-1172.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/tango4-vantage-1172.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/tango4-vantage-1172.dts	2017-09-27 08:40:05.000000000 -0400
@@ -21,7 +21,7 @@
 };
 
 &eth0 {
-	phy-connection-type = "rgmii";
+	phy-connection-type = "rgmii-id";
 	phy-handle = <&eth0_phy>;
 	#address-cells = <1>;
 	#size-cells = <0>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/boot/dts/tegra20-paz00.dts linux-libre-4.9.52-gnu/arch/arm/boot/dts/tegra20-paz00.dts
--- linux-libre-4.9-gnu/arch/arm/boot/dts/tegra20-paz00.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/boot/dts/tegra20-paz00.dts	2017-09-27 08:40:05.000000000 -0400
@@ -569,6 +569,7 @@
 			regulator-name = "+3VS,vdd_pnl";
 			regulator-min-microvolt = <3300000>;
 			regulator-max-microvolt = <3300000>;
+			regulator-boot-on;
 			gpio = <&gpio TEGRA_GPIO(A, 4) GPIO_ACTIVE_HIGH>;
 			enable-active-high;
 		};
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/configs/ezx_defconfig linux-libre-4.9.52-gnu/arch/arm/configs/ezx_defconfig
--- linux-libre-4.9-gnu/arch/arm/configs/ezx_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/configs/ezx_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -64,8 +64,8 @@ CONFIG_NETFILTER=y
 CONFIG_NETFILTER_NETLINK_QUEUE=m
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_SCTP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_SCTP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/configs/imote2_defconfig linux-libre-4.9.52-gnu/arch/arm/configs/imote2_defconfig
--- linux-libre-4.9-gnu/arch/arm/configs/imote2_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/configs/imote2_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -56,8 +56,8 @@ CONFIG_NETFILTER=y
 CONFIG_NETFILTER_NETLINK_QUEUE=m
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_SCTP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_SCTP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/configs/qcom_defconfig linux-libre-4.9.52-gnu/arch/arm/configs/qcom_defconfig
--- linux-libre-4.9-gnu/arch/arm/configs/qcom_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/configs/qcom_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -162,8 +162,8 @@ CONFIG_APQ_MMCC_8084=y
 CONFIG_IPQ_LCC_806X=y
 CONFIG_MSM_GCC_8660=y
 CONFIG_MSM_LCC_8960=y
-CONFIG_MSM_GCC_9615=y
-CONFIG_MSM_LCC_9615=y
+CONFIG_MDM_GCC_9615=y
+CONFIG_MDM_LCC_9615=y
 CONFIG_MSM_MMCC_8960=y
 CONFIG_MSM_MMCC_8974=y
 CONFIG_HWSPINLOCK_QCOM=y
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/configs/s3c2410_defconfig linux-libre-4.9.52-gnu/arch/arm/configs/s3c2410_defconfig
--- linux-libre-4.9-gnu/arch/arm/configs/s3c2410_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/configs/s3c2410_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -86,9 +86,9 @@ CONFIG_IPV6_TUNNEL=m
 CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_SCTP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_SCTP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/crypto/aes-ce-glue.c linux-libre-4.9.52-gnu/arch/arm/crypto/aes-ce-glue.c
--- linux-libre-4.9-gnu/arch/arm/crypto/aes-ce-glue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/crypto/aes-ce-glue.c	2017-09-27 08:40:05.000000000 -0400
@@ -88,8 +88,13 @@ static int ce_aes_expandkey(struct crypt
 		u32 *rki = ctx->key_enc + (i * kwords);
 		u32 *rko = rki + kwords;
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
 		rko[0] = ror32(ce_aes_sub(rki[kwords - 1]), 8);
 		rko[0] = rko[0] ^ rki[0] ^ rcon[i];
+#else
+		rko[0] = rol32(ce_aes_sub(rki[kwords - 1]), 8);
+		rko[0] = rko[0] ^ rki[0] ^ (rcon[i] << 24);
+#endif
 		rko[1] = rko[0] ^ rki[1];
 		rko[2] = rko[1] ^ rki[2];
 		rko[3] = rko[2] ^ rki[3];
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/include/asm/cputype.h linux-libre-4.9.52-gnu/arch/arm/include/asm/cputype.h
--- linux-libre-4.9-gnu/arch/arm/include/asm/cputype.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/include/asm/cputype.h	2017-09-27 08:40:05.000000000 -0400
@@ -94,6 +94,9 @@
 #define ARM_CPU_XSCALE_ARCH_V2		0x4000
 #define ARM_CPU_XSCALE_ARCH_V3		0x6000
 
+/* Qualcomm implemented cores */
+#define ARM_CPU_PART_SCORPION		0x510002d0
+
 extern unsigned int processor_id;
 
 #ifdef CONFIG_CPU_CP15
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/include/asm/elf.h linux-libre-4.9.52-gnu/arch/arm/include/asm/elf.h
--- linux-libre-4.9-gnu/arch/arm/include/asm/elf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/include/asm/elf.h	2017-09-27 08:40:05.000000000 -0400
@@ -112,12 +112,8 @@ int dump_task_regs(struct task_struct *t
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	4096
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE	(TASK_SIZE / 3 * 2)
+/* This is the base location for PIE (ET_DYN with INTERP) loads. */
+#define ELF_ET_DYN_BASE		0x400000UL
 
 /* When the program starts, a1 contains a pointer to a function to be 
    registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/include/asm/ftrace.h linux-libre-4.9.52-gnu/arch/arm/include/asm/ftrace.h
--- linux-libre-4.9-gnu/arch/arm/include/asm/ftrace.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/include/asm/ftrace.h	2017-09-27 08:40:05.000000000 -0400
@@ -54,6 +54,24 @@ static inline void *return_address(unsig
 
 #define ftrace_return_address(n) return_address(n)
 
+#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
+
+static inline bool arch_syscall_match_sym_name(const char *sym,
+					       const char *name)
+{
+	if (!strcmp(sym, "sys_mmap2"))
+		sym = "sys_mmap_pgoff";
+	else if (!strcmp(sym, "sys_statfs64_wrapper"))
+		sym = "sys_statfs64";
+	else if (!strcmp(sym, "sys_fstatfs64_wrapper"))
+		sym = "sys_fstatfs64";
+	else if (!strcmp(sym, "sys_arm_fadvise64_64"))
+		sym = "sys_fadvise64_64";
+
+	/* Ignore case since sym may start with "SyS" instead of "sys" */
+	return !strcasecmp(sym, name);
+}
+
 #endif /* ifndef __ASSEMBLY__ */
 
 #endif /* _ASM_ARM_FTRACE */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/include/asm/kvm_coproc.h linux-libre-4.9.52-gnu/arch/arm/include/asm/kvm_coproc.h
--- linux-libre-4.9-gnu/arch/arm/include/asm/kvm_coproc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/include/asm/kvm_coproc.h	2017-09-27 08:40:05.000000000 -0400
@@ -31,7 +31,8 @@ void kvm_register_target_coproc_table(st
 int kvm_handle_cp10_id(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp_0_13_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu, struct kvm_run *run);
-int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
+int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run);
+int kvm_handle_cp14_64(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run);
 int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/include/asm/kvm_mmu.h linux-libre-4.9.52-gnu/arch/arm/include/asm/kvm_mmu.h
--- linux-libre-4.9-gnu/arch/arm/include/asm/kvm_mmu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/include/asm/kvm_mmu.h	2017-09-27 08:40:05.000000000 -0400
@@ -150,18 +150,12 @@ static inline void __coherent_cache_gues
 	 * and iterate over the range.
 	 */
 
-	bool need_flush = !vcpu_has_cache_enabled(vcpu) || ipa_uncached;
-
 	VM_BUG_ON(size & ~PAGE_MASK);
 
-	if (!need_flush && !icache_is_pipt())
-		goto vipt_cache;
-
 	while (size) {
 		void *va = kmap_atomic_pfn(pfn);
 
-		if (need_flush)
-			kvm_flush_dcache_to_poc(va, PAGE_SIZE);
+		kvm_flush_dcache_to_poc(va, PAGE_SIZE);
 
 		if (icache_is_pipt())
 			__cpuc_coherent_user_range((unsigned long)va,
@@ -173,7 +167,6 @@ static inline void __coherent_cache_gues
 		kunmap_atomic(va);
 	}
 
-vipt_cache:
 	if (!icache_is_pipt() && !icache_is_vivt_asid_tagged()) {
 		/* any kind of VIPT cache */
 		__flush_icache_all();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/include/asm/module.h linux-libre-4.9.52-gnu/arch/arm/include/asm/module.h
--- linux-libre-4.9-gnu/arch/arm/include/asm/module.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/include/asm/module.h	2017-09-27 08:40:05.000000000 -0400
@@ -18,13 +18,18 @@ enum {
 };
 #endif
 
+struct mod_plt_sec {
+	struct elf32_shdr	*plt;
+	int			plt_count;
+};
+
 struct mod_arch_specific {
 #ifdef CONFIG_ARM_UNWIND
 	struct unwind_table *unwind[ARM_SEC_MAX];
 #endif
 #ifdef CONFIG_ARM_MODULE_PLTS
-	struct elf32_shdr   *plt;
-	int		    plt_count;
+	struct mod_plt_sec	core;
+	struct mod_plt_sec	init;
 #endif
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/armksyms.c linux-libre-4.9.52-gnu/arch/arm/kernel/armksyms.c
--- linux-libre-4.9-gnu/arch/arm/kernel/armksyms.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/armksyms.c	2017-09-27 08:40:05.000000000 -0400
@@ -178,6 +178,6 @@ EXPORT_SYMBOL(__pv_offset);
 #endif
 
 #ifdef CONFIG_HAVE_ARM_SMCCC
-EXPORT_SYMBOL(arm_smccc_smc);
-EXPORT_SYMBOL(arm_smccc_hvc);
+EXPORT_SYMBOL(__arm_smccc_smc);
+EXPORT_SYMBOL(__arm_smccc_hvc);
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/hw_breakpoint.c linux-libre-4.9.52-gnu/arch/arm/kernel/hw_breakpoint.c
--- linux-libre-4.9-gnu/arch/arm/kernel/hw_breakpoint.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/hw_breakpoint.c	2017-09-27 08:40:05.000000000 -0400
@@ -1066,6 +1066,22 @@ static int __init arch_hw_breakpoint_ini
 		return 0;
 	}
 
+	/*
+	 * Scorpion CPUs (at least those in APQ8060) seem to set DBGPRSR.SPD
+	 * whenever a WFI is issued, even if the core is not powered down, in
+	 * violation of the architecture.  When DBGPRSR.SPD is set, accesses to
+	 * breakpoint and watchpoint registers are treated as undefined, so
+	 * this results in boot time and runtime failures when these are
+	 * accessed and we unexpectedly take a trap.
+	 *
+	 * It's not clear if/how this can be worked around, so we blacklist
+	 * Scorpion CPUs to avoid these issues.
+	*/
+	if (read_cpuid_part() == ARM_CPU_PART_SCORPION) {
+		pr_info("Scorpion CPU detected. Hardware breakpoints and watchpoints disabled\n");
+		return 0;
+	}
+
 	has_ossr = core_has_os_save_restore();
 
 	/* Determine how many BRPs/WRPs are available. */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/module.lds linux-libre-4.9.52-gnu/arch/arm/kernel/module.lds
--- linux-libre-4.9-gnu/arch/arm/kernel/module.lds	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/module.lds	2017-09-27 08:40:05.000000000 -0400
@@ -1,3 +1,4 @@
 SECTIONS {
 	.plt : { BYTE(0) }
+	.init.plt : { BYTE(0) }
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/module-plts.c linux-libre-4.9.52-gnu/arch/arm/kernel/module-plts.c
--- linux-libre-4.9-gnu/arch/arm/kernel/module-plts.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/module-plts.c	2017-09-27 08:40:05.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ * Copyright (C) 2014-2017 Linaro Ltd. <ard.biesheuvel@linaro.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -31,9 +31,17 @@ struct plt_entries {
 	u32	lit[PLT_ENT_COUNT];
 };
 
+static bool in_init(const struct module *mod, unsigned long loc)
+{
+	return loc - (u32)mod->init_layout.base < mod->init_layout.size;
+}
+
 u32 get_module_plt(struct module *mod, unsigned long loc, Elf32_Addr val)
 {
-	struct plt_entries *plt = (struct plt_entries *)mod->arch.plt->sh_addr;
+	struct mod_plt_sec *pltsec = !in_init(mod, loc) ? &mod->arch.core :
+							  &mod->arch.init;
+
+	struct plt_entries *plt = (struct plt_entries *)pltsec->plt->sh_addr;
 	int idx = 0;
 
 	/*
@@ -41,9 +49,9 @@ u32 get_module_plt(struct module *mod, u
 	 * relocations are sorted, this will be the last entry we allocated.
 	 * (if one exists).
 	 */
-	if (mod->arch.plt_count > 0) {
-		plt += (mod->arch.plt_count - 1) / PLT_ENT_COUNT;
-		idx = (mod->arch.plt_count - 1) % PLT_ENT_COUNT;
+	if (pltsec->plt_count > 0) {
+		plt += (pltsec->plt_count - 1) / PLT_ENT_COUNT;
+		idx = (pltsec->plt_count - 1) % PLT_ENT_COUNT;
 
 		if (plt->lit[idx] == val)
 			return (u32)&plt->ldr[idx];
@@ -53,8 +61,8 @@ u32 get_module_plt(struct module *mod, u
 			plt++;
 	}
 
-	mod->arch.plt_count++;
-	BUG_ON(mod->arch.plt_count * PLT_ENT_SIZE > mod->arch.plt->sh_size);
+	pltsec->plt_count++;
+	BUG_ON(pltsec->plt_count * PLT_ENT_SIZE > pltsec->plt->sh_size);
 
 	if (!idx)
 		/* Populate a new set of entries */
@@ -129,7 +137,7 @@ static bool duplicate_rel(Elf32_Addr bas
 
 /* Count how many PLT entries we may need */
 static unsigned int count_plts(const Elf32_Sym *syms, Elf32_Addr base,
-			       const Elf32_Rel *rel, int num)
+			       const Elf32_Rel *rel, int num, Elf32_Word dstidx)
 {
 	unsigned int ret = 0;
 	const Elf32_Sym *s;
@@ -144,13 +152,17 @@ static unsigned int count_plts(const Elf
 		case R_ARM_THM_JUMP24:
 			/*
 			 * We only have to consider branch targets that resolve
-			 * to undefined symbols. This is not simply a heuristic,
-			 * it is a fundamental limitation, since the PLT itself
-			 * is part of the module, and needs to be within range
-			 * as well, so modules can never grow beyond that limit.
+			 * to symbols that are defined in a different section.
+			 * This is not simply a heuristic, it is a fundamental
+			 * limitation, since there is no guaranteed way to emit
+			 * PLT entries sufficiently close to the branch if the
+			 * section size exceeds the range of a branch
+			 * instruction. So ignore relocations against defined
+			 * symbols if they live in the same section as the
+			 * relocation target.
 			 */
 			s = syms + ELF32_R_SYM(rel[i].r_info);
-			if (s->st_shndx != SHN_UNDEF)
+			if (s->st_shndx == dstidx)
 				break;
 
 			/*
@@ -161,7 +173,12 @@ static unsigned int count_plts(const Elf
 			 * So we need to support them, but there is no need to
 			 * take them into consideration when trying to optimize
 			 * this code. So let's only check for duplicates when
-			 * the addend is zero.
+			 * the addend is zero. (Note that calls into the core
+			 * module via init PLT entries could involve section
+			 * relative symbol references with non-zero addends, for
+			 * which we may end up emitting duplicates, but the init
+			 * PLT is released along with the rest of the .init
+			 * region as soon as module loading completes.)
 			 */
 			if (!is_zero_addend_relocation(base, rel + i) ||
 			    !duplicate_rel(base, rel, i))
@@ -174,7 +191,8 @@ static unsigned int count_plts(const Elf
 int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 			      char *secstrings, struct module *mod)
 {
-	unsigned long plts = 0;
+	unsigned long core_plts = 0;
+	unsigned long init_plts = 0;
 	Elf32_Shdr *s, *sechdrs_end = sechdrs + ehdr->e_shnum;
 	Elf32_Sym *syms = NULL;
 
@@ -184,13 +202,15 @@ int module_frob_arch_sections(Elf_Ehdr *
 	 */
 	for (s = sechdrs; s < sechdrs_end; ++s) {
 		if (strcmp(".plt", secstrings + s->sh_name) == 0)
-			mod->arch.plt = s;
+			mod->arch.core.plt = s;
+		else if (strcmp(".init.plt", secstrings + s->sh_name) == 0)
+			mod->arch.init.plt = s;
 		else if (s->sh_type == SHT_SYMTAB)
 			syms = (Elf32_Sym *)s->sh_addr;
 	}
 
-	if (!mod->arch.plt) {
-		pr_err("%s: module PLT section missing\n", mod->name);
+	if (!mod->arch.core.plt || !mod->arch.init.plt) {
+		pr_err("%s: module PLT section(s) missing\n", mod->name);
 		return -ENOEXEC;
 	}
 	if (!syms) {
@@ -213,16 +233,29 @@ int module_frob_arch_sections(Elf_Ehdr *
 		/* sort by type and symbol index */
 		sort(rels, numrels, sizeof(Elf32_Rel), cmp_rel, NULL);
 
-		plts += count_plts(syms, dstsec->sh_addr, rels, numrels);
+		if (strncmp(secstrings + dstsec->sh_name, ".init", 5) != 0)
+			core_plts += count_plts(syms, dstsec->sh_addr, rels,
+						numrels, s->sh_info);
+		else
+			init_plts += count_plts(syms, dstsec->sh_addr, rels,
+						numrels, s->sh_info);
 	}
 
-	mod->arch.plt->sh_type = SHT_NOBITS;
-	mod->arch.plt->sh_flags = SHF_EXECINSTR | SHF_ALLOC;
-	mod->arch.plt->sh_addralign = L1_CACHE_BYTES;
-	mod->arch.plt->sh_size = round_up(plts * PLT_ENT_SIZE,
-					  sizeof(struct plt_entries));
-	mod->arch.plt_count = 0;
+	mod->arch.core.plt->sh_type = SHT_NOBITS;
+	mod->arch.core.plt->sh_flags = SHF_EXECINSTR | SHF_ALLOC;
+	mod->arch.core.plt->sh_addralign = L1_CACHE_BYTES;
+	mod->arch.core.plt->sh_size = round_up(core_plts * PLT_ENT_SIZE,
+					       sizeof(struct plt_entries));
+	mod->arch.core.plt_count = 0;
 
-	pr_debug("%s: plt=%x\n", __func__, mod->arch.plt->sh_size);
+	mod->arch.init.plt->sh_type = SHT_NOBITS;
+	mod->arch.init.plt->sh_flags = SHF_EXECINSTR | SHF_ALLOC;
+	mod->arch.init.plt->sh_addralign = L1_CACHE_BYTES;
+	mod->arch.init.plt->sh_size = round_up(init_plts * PLT_ENT_SIZE,
+					       sizeof(struct plt_entries));
+	mod->arch.init.plt_count = 0;
+
+	pr_debug("%s: plt=%x, init.plt=%x\n", __func__,
+		 mod->arch.core.plt->sh_size, mod->arch.init.plt->sh_size);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/arm/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/arm/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -600,7 +600,7 @@ static int gpr_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct pt_regs newregs;
+	struct pt_regs newregs = *task_pt_regs(target);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 &newregs,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/setup.c linux-libre-4.9.52-gnu/arch/arm/kernel/setup.c
--- linux-libre-4.9-gnu/arch/arm/kernel/setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,7 +81,7 @@ __setup("fpe=", fpe_setup);
 extern void init_default_cache_policy(unsigned long);
 extern void paging_init(const struct machine_desc *desc);
 extern void early_paging_init(const struct machine_desc *);
-extern void sanity_check_meminfo(void);
+extern void adjust_lowmem_bounds(void);
 extern enum reboot_mode reboot_mode;
 extern void setup_dma_zone(const struct machine_desc *desc);
 
@@ -1093,8 +1093,14 @@ void __init setup_arch(char **cmdline_p)
 	setup_dma_zone(mdesc);
 	xen_early_init();
 	efi_init();
-	sanity_check_meminfo();
+	/*
+	 * Make sure the calculation for lowmem/highmem is set appropriately
+	 * before reserving/allocating any mmeory
+	 */
+	adjust_lowmem_bounds();
 	arm_memblock_init(mdesc);
+	/* Memory may have been removed so recalculate the bounds. */
+	adjust_lowmem_bounds();
 
 	early_ioremap_reset();
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/smccc-call.S linux-libre-4.9.52-gnu/arch/arm/kernel/smccc-call.S
--- linux-libre-4.9-gnu/arch/arm/kernel/smccc-call.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/smccc-call.S	2017-09-27 08:40:05.000000000 -0400
@@ -46,17 +46,19 @@ UNWIND(	.fnend)
 /*
  * void smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2,
  *		  unsigned long a3, unsigned long a4, unsigned long a5,
- *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res)
+ *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
+ *		  struct arm_smccc_quirk *quirk)
  */
-ENTRY(arm_smccc_smc)
+ENTRY(__arm_smccc_smc)
 	SMCCC SMCCC_SMC
-ENDPROC(arm_smccc_smc)
+ENDPROC(__arm_smccc_smc)
 
 /*
  * void smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2,
  *		  unsigned long a3, unsigned long a4, unsigned long a5,
- *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res)
+ *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
+ *		  struct arm_smccc_quirk *quirk)
  */
-ENTRY(arm_smccc_hvc)
+ENTRY(__arm_smccc_hvc)
 	SMCCC SMCCC_HVC
-ENDPROC(arm_smccc_hvc)
+ENDPROC(__arm_smccc_hvc)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kernel/smp_tlb.c linux-libre-4.9.52-gnu/arch/arm/kernel/smp_tlb.c
--- linux-libre-4.9-gnu/arch/arm/kernel/smp_tlb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kernel/smp_tlb.c	2017-09-27 08:40:05.000000000 -0400
@@ -9,6 +9,7 @@
  */
 #include <linux/preempt.h>
 #include <linux/smp.h>
+#include <linux/uaccess.h>
 
 #include <asm/smp_plat.h>
 #include <asm/tlbflush.h>
@@ -40,8 +41,11 @@ static inline void ipi_flush_tlb_mm(void
 static inline void ipi_flush_tlb_page(void *arg)
 {
 	struct tlb_args *ta = (struct tlb_args *)arg;
+	unsigned int __ua_flags = uaccess_save_and_enable();
 
 	local_flush_tlb_page(ta->ta_vma, ta->ta_start);
+
+	uaccess_restore(__ua_flags);
 }
 
 static inline void ipi_flush_tlb_kernel_page(void *arg)
@@ -54,8 +58,11 @@ static inline void ipi_flush_tlb_kernel_
 static inline void ipi_flush_tlb_range(void *arg)
 {
 	struct tlb_args *ta = (struct tlb_args *)arg;
+	unsigned int __ua_flags = uaccess_save_and_enable();
 
 	local_flush_tlb_range(ta->ta_vma, ta->ta_start, ta->ta_end);
+
+	uaccess_restore(__ua_flags);
 }
 
 static inline void ipi_flush_tlb_kernel_range(void *arg)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kvm/coproc.c linux-libre-4.9.52-gnu/arch/arm/kvm/coproc.c
--- linux-libre-4.9-gnu/arch/arm/kvm/coproc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kvm/coproc.c	2017-09-27 08:40:05.000000000 -0400
@@ -93,12 +93,6 @@ int kvm_handle_cp14_load_store(struct kv
 	return 1;
 }
 
-int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run)
-{
-	kvm_inject_undefined(vcpu);
-	return 1;
-}
-
 static void reset_mpidr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
 {
 	/*
@@ -514,12 +508,7 @@ static int emulate_cp15(struct kvm_vcpu
 	return 1;
 }
 
-/**
- * kvm_handle_cp15_64 -- handles a mrrc/mcrr trap on a guest CP15 access
- * @vcpu: The VCPU pointer
- * @run:  The kvm_run struct
- */
-int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static struct coproc_params decode_64bit_hsr(struct kvm_vcpu *vcpu)
 {
 	struct coproc_params params;
 
@@ -533,9 +522,38 @@ int kvm_handle_cp15_64(struct kvm_vcpu *
 	params.Rt2 = (kvm_vcpu_get_hsr(vcpu) >> 10) & 0xf;
 	params.CRm = 0;
 
+	return params;
+}
+
+/**
+ * kvm_handle_cp15_64 -- handles a mrrc/mcrr trap on a guest CP15 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_64bit_hsr(vcpu);
+
 	return emulate_cp15(vcpu, &params);
 }
 
+/**
+ * kvm_handle_cp14_64 -- handles a mrrc/mcrr trap on a guest CP14 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp14_64(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_64bit_hsr(vcpu);
+
+	/* raz_wi cp14 */
+	pm_fake(vcpu, &params, NULL);
+
+	/* handled */
+	kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+	return 1;
+}
+
 static void reset_coproc_regs(struct kvm_vcpu *vcpu,
 			      const struct coproc_reg *table, size_t num)
 {
@@ -546,12 +564,7 @@ static void reset_coproc_regs(struct kvm
 			table[i].reset(vcpu, &table[i]);
 }
 
-/**
- * kvm_handle_cp15_32 -- handles a mrc/mcr trap on a guest CP15 access
- * @vcpu: The VCPU pointer
- * @run:  The kvm_run struct
- */
-int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static struct coproc_params decode_32bit_hsr(struct kvm_vcpu *vcpu)
 {
 	struct coproc_params params;
 
@@ -565,9 +578,37 @@ int kvm_handle_cp15_32(struct kvm_vcpu *
 	params.Op2 = (kvm_vcpu_get_hsr(vcpu) >> 17) & 0x7;
 	params.Rt2 = 0;
 
+	return params;
+}
+
+/**
+ * kvm_handle_cp15_32 -- handles a mrc/mcr trap on a guest CP15 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_32bit_hsr(vcpu);
 	return emulate_cp15(vcpu, &params);
 }
 
+/**
+ * kvm_handle_cp14_32 -- handles a mrc/mcr trap on a guest CP14 access
+ * @vcpu: The VCPU pointer
+ * @run:  The kvm_run struct
+ */
+int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	struct coproc_params params = decode_32bit_hsr(vcpu);
+
+	/* raz_wi cp14 */
+	pm_fake(vcpu, &params, NULL);
+
+	/* handled */
+	kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
+	return 1;
+}
+
 /******************************************************************************
  * Userspace API
  *****************************************************************************/
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kvm/handle_exit.c linux-libre-4.9.52-gnu/arch/arm/kvm/handle_exit.c
--- linux-libre-4.9-gnu/arch/arm/kvm/handle_exit.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kvm/handle_exit.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,9 +83,9 @@ static exit_handle_fn arm_exit_handlers[
 	[HSR_EC_WFI]		= kvm_handle_wfx,
 	[HSR_EC_CP15_32]	= kvm_handle_cp15_32,
 	[HSR_EC_CP15_64]	= kvm_handle_cp15_64,
-	[HSR_EC_CP14_MR]	= kvm_handle_cp14_access,
+	[HSR_EC_CP14_MR]	= kvm_handle_cp14_32,
 	[HSR_EC_CP14_LS]	= kvm_handle_cp14_load_store,
-	[HSR_EC_CP14_64]	= kvm_handle_cp14_access,
+	[HSR_EC_CP14_64]	= kvm_handle_cp14_64,
 	[HSR_EC_CP_0_13]	= kvm_handle_cp_0_13_access,
 	[HSR_EC_CP10_ID]	= kvm_handle_cp10_id,
 	[HSR_EC_HVC]		= handle_hvc,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kvm/hyp/Makefile linux-libre-4.9.52-gnu/arch/arm/kvm/hyp/Makefile
--- linux-libre-4.9-gnu/arch/arm/kvm/hyp/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kvm/hyp/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -2,6 +2,8 @@
 # Makefile for Kernel-based Virtual Machine module, HYP part
 #
 
+ccflags-y += -fno-stack-protector
+
 KVM=../../../../virt/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kvm/hyp/switch.c linux-libre-4.9.52-gnu/arch/arm/kvm/hyp/switch.c
--- linux-libre-4.9-gnu/arch/arm/kvm/hyp/switch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kvm/hyp/switch.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,7 +48,9 @@ static void __hyp_text __activate_traps(
 	write_sysreg(HSTR_T(15), HSTR);
 	write_sysreg(HCPTR_TTA | HCPTR_TCP(10) | HCPTR_TCP(11), HCPTR);
 	val = read_sysreg(HDCR);
-	write_sysreg(val | HDCR_TPM | HDCR_TPMCR, HDCR);
+	val |= HDCR_TPM | HDCR_TPMCR; /* trap performance monitors */
+	val |= HDCR_TDRA | HDCR_TDOSA | HDCR_TDA; /* trap debug regs */
+	write_sysreg(val, HDCR);
 }
 
 static void __hyp_text __deactivate_traps(struct kvm_vcpu *vcpu)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kvm/init.S linux-libre-4.9.52-gnu/arch/arm/kvm/init.S
--- linux-libre-4.9-gnu/arch/arm/kvm/init.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kvm/init.S	2017-09-27 08:40:05.000000000 -0400
@@ -95,7 +95,6 @@ __do_hyp_init:
 	@  - Write permission implies XN: disabled
 	@  - Instruction cache: enabled
 	@  - Data/Unified cache: enabled
-	@  - Memory alignment checks: enabled
 	@  - MMU: enabled (this code must be run from an identity mapping)
 	mrc	p15, 4, r0, c1, c0, 0	@ HSCR
 	ldr	r2, =HSCTLR_MASK
@@ -103,8 +102,8 @@ __do_hyp_init:
 	mrc	p15, 0, r1, c1, c0, 0	@ SCTLR
 	ldr	r2, =(HSCTLR_EE | HSCTLR_FI | HSCTLR_I | HSCTLR_C)
 	and	r1, r1, r2
- ARM(	ldr	r2, =(HSCTLR_M | HSCTLR_A)			)
- THUMB(	ldr	r2, =(HSCTLR_M | HSCTLR_A | HSCTLR_TE)		)
+ ARM(	ldr	r2, =(HSCTLR_M)					)
+ THUMB(	ldr	r2, =(HSCTLR_M | HSCTLR_TE)			)
 	orr	r1, r1, r2
 	orr	r0, r0, r1
 	mcr	p15, 4, r0, c1, c0, 0	@ HSCR
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kvm/mmu.c linux-libre-4.9.52-gnu/arch/arm/kvm/mmu.c
--- linux-libre-4.9-gnu/arch/arm/kvm/mmu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kvm/mmu.c	2017-09-27 08:40:05.000000000 -0400
@@ -292,11 +292,18 @@ static void unmap_stage2_range(struct kv
 	phys_addr_t addr = start, end = start + size;
 	phys_addr_t next;
 
+	assert_spin_locked(&kvm->mmu_lock);
 	pgd = kvm->arch.pgd + stage2_pgd_index(addr);
 	do {
 		next = stage2_pgd_addr_end(addr, end);
 		if (!stage2_pgd_none(*pgd))
 			unmap_stage2_puds(kvm, pgd, addr, next);
+		/*
+		 * If the range is too large, release the kvm->mmu_lock
+		 * to prevent starvation and lockup detector warnings.
+		 */
+		if (next != end)
+			cond_resched_lock(&kvm->mmu_lock);
 	} while (pgd++, addr = next, addr != end);
 }
 
@@ -803,6 +810,7 @@ void stage2_unmap_vm(struct kvm *kvm)
 	int idx;
 
 	idx = srcu_read_lock(&kvm->srcu);
+	down_read(&current->mm->mmap_sem);
 	spin_lock(&kvm->mmu_lock);
 
 	slots = kvm_memslots(kvm);
@@ -810,6 +818,7 @@ void stage2_unmap_vm(struct kvm *kvm)
 		stage2_unmap_memslot(kvm, memslot);
 
 	spin_unlock(&kvm->mmu_lock);
+	up_read(&current->mm->mmap_sem);
 	srcu_read_unlock(&kvm->srcu, idx);
 }
 
@@ -820,19 +829,22 @@ void stage2_unmap_vm(struct kvm *kvm)
  * Walks the level-1 page table pointed to by kvm->arch.pgd and frees all
  * underlying level-2 and level-3 tables before freeing the actual level-1 table
  * and setting the struct pointer to NULL.
- *
- * Note we don't need locking here as this is only called when the VM is
- * destroyed, which can only be done once.
  */
 void kvm_free_stage2_pgd(struct kvm *kvm)
 {
-	if (kvm->arch.pgd == NULL)
-		return;
+	void *pgd = NULL;
+
+	spin_lock(&kvm->mmu_lock);
+	if (kvm->arch.pgd) {
+		unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
+		pgd = READ_ONCE(kvm->arch.pgd);
+		kvm->arch.pgd = NULL;
+	}
+	spin_unlock(&kvm->mmu_lock);
 
-	unmap_stage2_range(kvm, 0, KVM_PHYS_SIZE);
 	/* Free the HW pgd, one page at a time */
-	free_pages_exact(kvm->arch.pgd, S2_PGD_SIZE);
-	kvm->arch.pgd = NULL;
+	if (pgd)
+		free_pages_exact(pgd, S2_PGD_SIZE);
 }
 
 static pud_t *stage2_get_pud(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
@@ -860,6 +872,9 @@ static pmd_t *stage2_get_pmd(struct kvm
 	pmd_t *pmd;
 
 	pud = stage2_get_pud(kvm, cache, addr);
+	if (!pud)
+		return NULL;
+
 	if (stage2_pud_none(*pud)) {
 		if (!cache)
 			return NULL;
@@ -1649,12 +1664,16 @@ static int kvm_test_age_hva_handler(stru
 
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
 {
+	if (!kvm->arch.pgd)
+		return 0;
 	trace_kvm_age_hva(start, end);
 	return handle_hva_to_gpa(kvm, start, end, kvm_age_hva_handler, NULL);
 }
 
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
 {
+	if (!kvm->arch.pgd)
+		return 0;
 	trace_kvm_test_age_hva(hva);
 	return handle_hva_to_gpa(kvm, hva, hva, kvm_test_age_hva_handler, NULL);
 }
@@ -1804,6 +1823,7 @@ int kvm_arch_prepare_memory_region(struc
 	    (KVM_PHYS_SIZE >> PAGE_SHIFT))
 		return -EFAULT;
 
+	down_read(&current->mm->mmap_sem);
 	/*
 	 * A memory region could potentially cover multiple VMAs, and any holes
 	 * between them, so iterate over all of them to find out if we can map
@@ -1847,8 +1867,10 @@ int kvm_arch_prepare_memory_region(struc
 			pa += vm_start - vma->vm_start;
 
 			/* IO region dirty page logging not allowed */
-			if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES)
-				return -EINVAL;
+			if (memslot->flags & KVM_MEM_LOG_DIRTY_PAGES) {
+				ret = -EINVAL;
+				goto out;
+			}
 
 			ret = kvm_phys_addr_ioremap(kvm, gpa, pa,
 						    vm_end - vm_start,
@@ -1860,7 +1882,7 @@ int kvm_arch_prepare_memory_region(struc
 	} while (hva < reg_end);
 
 	if (change == KVM_MR_FLAGS_ONLY)
-		return ret;
+		goto out;
 
 	spin_lock(&kvm->mmu_lock);
 	if (ret)
@@ -1868,6 +1890,8 @@ int kvm_arch_prepare_memory_region(struc
 	else
 		stage2_flush_memslot(kvm, memslot);
 	spin_unlock(&kvm->mmu_lock);
+out:
+	up_read(&current->mm->mmap_sem);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/kvm/psci.c linux-libre-4.9.52-gnu/arch/arm/kvm/psci.c
--- linux-libre-4.9-gnu/arch/arm/kvm/psci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/kvm/psci.c	2017-09-27 08:40:05.000000000 -0400
@@ -208,9 +208,10 @@ int kvm_psci_version(struct kvm_vcpu *vc
 
 static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
 {
-	int ret = 1;
+	struct kvm *kvm = vcpu->kvm;
 	unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
 	unsigned long val;
+	int ret = 1;
 
 	switch (psci_fn) {
 	case PSCI_0_2_FN_PSCI_VERSION:
@@ -230,7 +231,9 @@ static int kvm_psci_0_2_call(struct kvm_
 		break;
 	case PSCI_0_2_FN_CPU_ON:
 	case PSCI_0_2_FN64_CPU_ON:
+		mutex_lock(&kvm->lock);
 		val = kvm_psci_vcpu_on(vcpu);
+		mutex_unlock(&kvm->lock);
 		break;
 	case PSCI_0_2_FN_AFFINITY_INFO:
 	case PSCI_0_2_FN64_AFFINITY_INFO:
@@ -279,6 +282,7 @@ static int kvm_psci_0_2_call(struct kvm_
 
 static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
 {
+	struct kvm *kvm = vcpu->kvm;
 	unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
 	unsigned long val;
 
@@ -288,7 +292,9 @@ static int kvm_psci_0_1_call(struct kvm_
 		val = PSCI_RET_SUCCESS;
 		break;
 	case KVM_PSCI_FN_CPU_ON:
+		mutex_lock(&kvm->lock);
 		val = kvm_psci_vcpu_on(vcpu);
+		mutex_unlock(&kvm->lock);
 		break;
 	default:
 		val = PSCI_RET_NOT_SUPPORTED;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/lib/getuser.S linux-libre-4.9.52-gnu/arch/arm/lib/getuser.S
--- linux-libre-4.9-gnu/arch/arm/lib/getuser.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/lib/getuser.S	2017-09-27 08:40:05.000000000 -0400
@@ -67,7 +67,7 @@ ENTRY(__get_user_4)
 ENDPROC(__get_user_4)
 
 ENTRY(__get_user_8)
-	check_uaccess r0, 8, r1, r2, __get_user_bad
+	check_uaccess r0, 8, r1, r2, __get_user_bad8
 #ifdef CONFIG_THUMB2_KERNEL
 5: TUSER(ldr)	r2, [r0]
 6: TUSER(ldr)	r3, [r0, #4]
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-at91/pm.c linux-libre-4.9.52-gnu/arch/arm/mach-at91/pm.c
--- linux-libre-4.9-gnu/arch/arm/mach-at91/pm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-at91/pm.c	2017-09-27 08:40:05.000000000 -0400
@@ -289,6 +289,22 @@ static void at91_ddr_standby(void)
 		at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
 }
 
+static void sama5d3_ddr_standby(void)
+{
+	u32 lpr0;
+	u32 saved_lpr0;
+
+	saved_lpr0 = at91_ramc_read(0, AT91_DDRSDRC_LPR);
+	lpr0 = saved_lpr0 & ~AT91_DDRSDRC_LPCB;
+	lpr0 |= AT91_DDRSDRC_LPCB_POWER_DOWN;
+
+	at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0);
+
+	cpu_do_idle();
+
+	at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0);
+}
+
 /* We manage both DDRAM/SDRAM controllers, we need more than one value to
  * remember.
  */
@@ -323,7 +339,7 @@ static const struct of_device_id const r
 	{ .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby },
 	{ .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby },
 	{ .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby },
-	{ .compatible = "atmel,sama5d3-ddramc", .data = at91_ddr_standby },
+	{ .compatible = "atmel,sama5d3-ddramc", .data = sama5d3_ddr_standby },
 	{ /*sentinel*/ }
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-bcm/bcm_5301x.c linux-libre-4.9.52-gnu/arch/arm/mach-bcm/bcm_5301x.c
--- linux-libre-4.9-gnu/arch/arm/mach-bcm/bcm_5301x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-bcm/bcm_5301x.c	2017-09-27 08:40:05.000000000 -0400
@@ -9,14 +9,42 @@
 #include <asm/hardware/cache-l2x0.h>
 
 #include <asm/mach/arch.h>
+#include <asm/siginfo.h>
+#include <asm/signal.h>
+
+#define FSR_EXTERNAL		(1 << 12)
+#define FSR_READ		(0 << 10)
+#define FSR_IMPRECISE		0x0406
 
 static const char *const bcm5301x_dt_compat[] __initconst = {
 	"brcm,bcm4708",
 	NULL,
 };
 
+static int bcm5301x_abort_handler(unsigned long addr, unsigned int fsr,
+				  struct pt_regs *regs)
+{
+	/*
+	 * We want to ignore aborts forwarded from the PCIe bus that are
+	 * expected and shouldn't really be passed by the PCIe controller.
+	 * The biggest disadvantage is the same FSR code may be reported when
+	 * reading non-existing APB register and we shouldn't ignore that.
+	 */
+	if (fsr == (FSR_EXTERNAL | FSR_READ | FSR_IMPRECISE))
+		return 0;
+
+	return 1;
+}
+
+static void __init bcm5301x_init_early(void)
+{
+	hook_fault_code(16 + 6, bcm5301x_abort_handler, SIGBUS, BUS_OBJERR,
+			"imprecise external abort");
+}
+
 DT_MACHINE_START(BCM5301X, "BCM5301X")
 	.l2c_aux_val	= 0,
 	.l2c_aux_mask	= ~0,
 	.dt_compat	= bcm5301x_dt_compat,
+	.init_early	= bcm5301x_init_early,
 MACHINE_END
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-davinci/da850.c linux-libre-4.9.52-gnu/arch/arm/mach-davinci/da850.c
--- linux-libre-4.9-gnu/arch/arm/mach-davinci/da850.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-davinci/da850.c	2017-09-27 08:40:05.000000000 -0400
@@ -319,6 +319,16 @@ static struct clk emac_clk = {
 	.gpsc		= 1,
 };
 
+/*
+ * In order to avoid adding the emac_clk to the clock lookup table twice (and
+ * screwing up the linked list in the process) create a separate clock for
+ * mdio inheriting the rate from emac_clk.
+ */
+static struct clk mdio_clk = {
+	.name		= "mdio",
+	.parent		= &emac_clk,
+};
+
 static struct clk mcasp_clk = {
 	.name		= "mcasp",
 	.parent		= &async3_clk,
@@ -494,7 +504,7 @@ static struct clk_lookup da850_clks[] =
 	CLK(NULL,		"arm",		&arm_clk),
 	CLK(NULL,		"rmii",		&rmii_clk),
 	CLK("davinci_emac.1",	NULL,		&emac_clk),
-	CLK("davinci_mdio.0",	"fck",		&emac_clk),
+	CLK("davinci_mdio.0",	"fck",		&mdio_clk),
 	CLK("davinci-mcasp.0",	NULL,		&mcasp_clk),
 	CLK("davinci-mcbsp.0",	NULL,		&mcbsp0_clk),
 	CLK("davinci-mcbsp.1",	NULL,		&mcbsp1_clk),
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-davinci/da8xx-dt.c linux-libre-4.9.52-gnu/arch/arm/mach-davinci/da8xx-dt.c
--- linux-libre-4.9-gnu/arch/arm/mach-davinci/da8xx-dt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-davinci/da8xx-dt.c	2017-09-27 08:40:05.000000000 -0400
@@ -46,6 +46,7 @@ static struct of_dev_auxdata da850_auxda
 static void __init da850_init_machine(void)
 {
 	of_platform_default_populate(NULL, da850_auxdata_lookup, NULL);
+	davinci_pm_init();
 }
 
 static const char *const da850_boards_compat[] __initconst = {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/board-generic.c linux-libre-4.9.52-gnu/arch/arm/mach-omap2/board-generic.c
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/board-generic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/board-generic.c	2017-09-27 08:40:05.000000000 -0400
@@ -306,7 +306,7 @@ DT_MACHINE_START(AM43_DT, "Generic AM43
 	.init_late	= am43xx_init_late,
 	.init_irq	= omap_gic_of_init,
 	.init_machine	= omap_generic_init,
-	.init_time	= omap4_local_timer_init,
+	.init_time	= omap3_gptimer_timer_init,
 	.dt_compat	= am43_boards_compat,
 	.restart	= omap44xx_restart,
 MACHINE_END
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/common.h linux-libre-4.9.52-gnu/arch/arm/mach-omap2/common.h
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/common.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/common.h	2017-09-27 08:40:05.000000000 -0400
@@ -262,8 +262,6 @@ extern void __iomem *omap4_get_sar_ram_b
 extern void omap4_mpuss_early_init(void);
 extern void omap_do_wfi(void);
 
-extern void omap4_secondary_startup(void);
-extern void omap4460_secondary_startup(void);
 
 #ifdef CONFIG_SMP
 /* Needed for secondary core boot */
@@ -275,16 +273,11 @@ extern void omap4_cpu_die(unsigned int c
 extern int omap4_cpu_kill(unsigned int cpu);
 
 extern const struct smp_operations omap4_smp_ops;
-
-extern void omap5_secondary_startup(void);
-extern void omap5_secondary_hyp_startup(void);
 #endif
 
 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 extern int omap4_mpuss_init(void);
 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
-extern int omap4_finish_suspend(unsigned long cpu_state);
-extern void omap4_cpu_resume(void);
 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 #else
 static inline int omap4_enter_lowpower(unsigned int cpu,
@@ -305,14 +298,41 @@ static inline int omap4_mpuss_init(void)
 	return 0;
 }
 
+#endif
+
+#ifdef CONFIG_ARCH_OMAP4
+void omap4_secondary_startup(void);
+void omap4460_secondary_startup(void);
+int omap4_finish_suspend(unsigned long cpu_state);
+void omap4_cpu_resume(void);
+#else
+static inline void omap4_secondary_startup(void)
+{
+}
+
+static inline void omap4460_secondary_startup(void)
+{
+}
 static inline int omap4_finish_suspend(unsigned long cpu_state)
 {
 	return 0;
 }
-
 static inline void omap4_cpu_resume(void)
-{}
+{
+}
+#endif
 
+#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
+void omap5_secondary_startup(void);
+void omap5_secondary_hyp_startup(void);
+#else
+static inline void omap5_secondary_startup(void)
+{
+}
+
+static inline void omap5_secondary_hyp_startup(void)
+{
+}
 #endif
 
 void pdata_quirks_init(const struct of_device_id *);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/io.c linux-libre-4.9.52-gnu/arch/arm/mach-omap2/io.c
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/io.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/io.c	2017-09-27 08:40:05.000000000 -0400
@@ -717,10 +717,11 @@ void __init omap5_init_early(void)
 			      OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
 	omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
 	omap2_control_base_init();
-	omap4_pm_init_early();
 	omap2_prcm_base_init();
 	omap5xxx_check_revision();
 	omap4_sar_ram_init();
+	omap4_mpuss_early_init();
+	omap4_pm_init_early();
 	omap54xx_voltagedomains_init();
 	omap54xx_powerdomains_init();
 	omap54xx_clockdomains_init();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/Makefile linux-libre-4.9.52-gnu/arch/arm/mach-omap2/Makefile
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -80,7 +80,7 @@ endif
 # Power Management
 omap-4-5-pm-common			= omap-mpuss-lowpower.o
 obj-$(CONFIG_ARCH_OMAP4)		+= $(omap-4-5-pm-common)
-obj-$(CONFIG_ARCH_OMAP5)		+= $(omap-4-5-pm-common)
+obj-$(CONFIG_SOC_OMAP5)			+= $(omap-4-5-pm-common)
 obj-$(CONFIG_OMAP_PM_NOOP)		+= omap-pm-noop.o
 
 ifeq ($(CONFIG_PM),y)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/omap4-sar-layout.h linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap4-sar-layout.h
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/omap4-sar-layout.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap4-sar-layout.h	2017-09-27 08:40:05.000000000 -0400
@@ -31,6 +31,8 @@
 /* CPUx Wakeup Non-Secure Physical Address offsets in SAR_BANK3 */
 #define CPU0_WAKEUP_NS_PA_ADDR_OFFSET		0xa04
 #define CPU1_WAKEUP_NS_PA_ADDR_OFFSET		0xa08
+#define OMAP5_CPU0_WAKEUP_NS_PA_ADDR_OFFSET	0xe00
+#define OMAP5_CPU1_WAKEUP_NS_PA_ADDR_OFFSET	0xe04
 
 #define SAR_BACKUP_STATUS_OFFSET		(SAR_BANK3_OFFSET + 0x500)
 #define SAR_SECURE_RAM_SIZE_OFFSET		(SAR_BANK3_OFFSET + 0x504)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/omap_device.c linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap_device.c
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/omap_device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap_device.c	2017-09-27 08:40:05.000000000 -0400
@@ -222,6 +222,14 @@ static int _omap_device_notifier_call(st
 				dev_err(dev, "failed to idle\n");
 		}
 		break;
+	case BUS_NOTIFY_BIND_DRIVER:
+		od = to_omap_device(pdev);
+		if (od && (od->_state == OMAP_DEVICE_STATE_ENABLED) &&
+		    pm_runtime_status_suspended(dev)) {
+			od->_driver_status = BUS_NOTIFY_BIND_DRIVER;
+			pm_runtime_set_active(dev);
+		}
+		break;
 	case BUS_NOTIFY_ADD_DEVICE:
 		if (pdev->dev.of_node)
 			omap_device_build_from_dt(pdev);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/omap-headsmp.S linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap-headsmp.S
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/omap-headsmp.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap-headsmp.S	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,7 @@
 
 #include <linux/linkage.h>
 #include <linux/init.h>
+#include <asm/assembler.h>
 
 #include "omap44xx.h"
 
@@ -66,7 +67,7 @@ wait_2:	ldr	r2, =AUX_CORE_BOOT0_PA	@ rea
 	cmp	r0, r4
 	bne	wait_2
 	ldr	r12, =API_HYP_ENTRY
-	adr	r0, hyp_boot
+	badr	r0, hyp_boot
 	smc	#0
 hyp_boot:
 	b	omap_secondary_startup
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/omap_hwmod.c linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap_hwmod.c
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/omap_hwmod.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap_hwmod.c	2017-09-27 08:40:05.000000000 -0400
@@ -790,14 +790,14 @@ static int _init_main_clk(struct omap_hw
 	int ret = 0;
 	char name[MOD_CLK_MAX_NAME_LEN];
 	struct clk *clk;
+	static const char modck[] = "_mod_ck";
 
-	/* +7 magic comes from '_mod_ck' suffix */
-	if (strlen(oh->name) + 7 > MOD_CLK_MAX_NAME_LEN)
+	if (strlen(oh->name) >= MOD_CLK_MAX_NAME_LEN - strlen(modck))
 		pr_warn("%s: warning: cropping name for %s\n", __func__,
 			oh->name);
 
-	strncpy(name, oh->name, MOD_CLK_MAX_NAME_LEN - 7);
-	strcat(name, "_mod_ck");
+	strlcpy(name, oh->name, MOD_CLK_MAX_NAME_LEN - strlen(modck));
+	strlcat(name, modck, MOD_CLK_MAX_NAME_LEN);
 
 	clk = clk_get(NULL, name);
 	if (!IS_ERR(clk)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/omap-mpuss-lowpower.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,6 +48,7 @@
 #include <asm/smp_scu.h>
 #include <asm/pgalloc.h>
 #include <asm/suspend.h>
+#include <asm/virt.h>
 #include <asm/hardware/cache-l2x0.h>
 
 #include "soc.h"
@@ -244,10 +245,9 @@ int omap4_enter_lowpower(unsigned int cp
 		save_state = 1;
 		break;
 	case PWRDM_POWER_RET:
-		if (IS_PM44XX_ERRATUM(PM_OMAP4_CPU_OSWR_DISABLE)) {
+		if (IS_PM44XX_ERRATUM(PM_OMAP4_CPU_OSWR_DISABLE))
 			save_state = 0;
-			break;
-		}
+		break;
 	default:
 		/*
 		 * CPUx CSWR is invalid hardware state. Also CPUx OSWR
@@ -371,8 +371,12 @@ int __init omap4_mpuss_init(void)
 	pm_info = &per_cpu(omap4_pm_info, 0x0);
 	if (sar_base) {
 		pm_info->scu_sar_addr = sar_base + SCU_OFFSET0;
-		pm_info->wkup_sar_addr = sar_base +
-					CPU0_WAKEUP_NS_PA_ADDR_OFFSET;
+		if (cpu_is_omap44xx())
+			pm_info->wkup_sar_addr = sar_base +
+				CPU0_WAKEUP_NS_PA_ADDR_OFFSET;
+		else
+			pm_info->wkup_sar_addr = sar_base +
+				OMAP5_CPU0_WAKEUP_NS_PA_ADDR_OFFSET;
 		pm_info->l2x0_sar_addr = sar_base + L2X0_SAVE_OFFSET0;
 	}
 	pm_info->pwrdm = pwrdm_lookup("cpu0_pwrdm");
@@ -391,8 +395,12 @@ int __init omap4_mpuss_init(void)
 	pm_info = &per_cpu(omap4_pm_info, 0x1);
 	if (sar_base) {
 		pm_info->scu_sar_addr = sar_base + SCU_OFFSET1;
-		pm_info->wkup_sar_addr = sar_base +
-					CPU1_WAKEUP_NS_PA_ADDR_OFFSET;
+		if (cpu_is_omap44xx())
+			pm_info->wkup_sar_addr = sar_base +
+				CPU1_WAKEUP_NS_PA_ADDR_OFFSET;
+		else
+			pm_info->wkup_sar_addr = sar_base +
+				OMAP5_CPU1_WAKEUP_NS_PA_ADDR_OFFSET;
 		pm_info->l2x0_sar_addr = sar_base + L2X0_SAVE_OFFSET1;
 	}
 
@@ -453,15 +461,24 @@ void __init omap4_mpuss_early_init(void)
 {
 	unsigned long startup_pa;
 
-	if (!cpu_is_omap44xx())
+	if (!(cpu_is_omap44xx() || soc_is_omap54xx()))
 		return;
 
 	sar_base = omap4_get_sar_ram_base();
 
 	if (cpu_is_omap443x())
 		startup_pa = virt_to_phys(omap4_secondary_startup);
-	else
+	else if (cpu_is_omap446x())
 		startup_pa = virt_to_phys(omap4460_secondary_startup);
+	else if ((__boot_cpu_mode & MODE_MASK) == HYP_MODE)
+		startup_pa = virt_to_phys(omap5_secondary_hyp_startup);
+	else
+		startup_pa = virt_to_phys(omap5_secondary_startup);
 
-	writel_relaxed(startup_pa, sar_base + CPU1_WAKEUP_NS_PA_ADDR_OFFSET);
+	if (cpu_is_omap44xx())
+		writel_relaxed(startup_pa, sar_base +
+			       CPU1_WAKEUP_NS_PA_ADDR_OFFSET);
+	else
+		writel_relaxed(startup_pa, sar_base +
+			       OMAP5_CPU1_WAKEUP_NS_PA_ADDR_OFFSET);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-omap2/timer.c linux-libre-4.9.52-gnu/arch/arm/mach-omap2/timer.c
--- linux-libre-4.9-gnu/arch/arm/mach-omap2/timer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-omap2/timer.c	2017-09-27 08:40:05.000000000 -0400
@@ -510,18 +510,19 @@ void __init omap3_secure_sync32k_timer_i
 }
 #endif /* CONFIG_ARCH_OMAP3 */
 
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX)
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX) || \
+	defined(CONFIG_SOC_AM43XX)
 void __init omap3_gptimer_timer_init(void)
 {
 	__omap_sync32k_timer_init(2, "timer_sys_ck", NULL,
 			1, "timer_sys_ck", "ti,timer-alwon", true);
-
-	clocksource_probe();
+	if (of_have_populated_dt())
+		clocksource_probe();
 }
 #endif
 
 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) ||		\
-	defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM43XX)
+	defined(CONFIG_SOC_DRA7XX)
 static void __init omap4_sync32k_timer_init(void)
 {
 	__omap_sync32k_timer_init(1, "timer_32k_ck", "ti,timer-alwon",
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-pxa/pxa25x.c linux-libre-4.9.52-gnu/arch/arm/mach-pxa/pxa25x.c
--- linux-libre-4.9-gnu/arch/arm/mach-pxa/pxa25x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-pxa/pxa25x.c	2017-09-27 08:40:05.000000000 -0400
@@ -156,7 +156,7 @@ static int __init __init
 pxa25x_dt_init_irq(struct device_node *node, struct device_node *parent)
 {
 	pxa_dt_irq_init(pxa25x_set_wake);
-	set_handle_irq(ichp_handle_irq);
+	set_handle_irq(icip_handle_irq);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-ux500/pm.c linux-libre-4.9.52-gnu/arch/arm/mach-ux500/pm.c
--- linux-libre-4.9-gnu/arch/arm/mach-ux500/pm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-ux500/pm.c	2017-09-27 08:40:05.000000000 -0400
@@ -134,8 +134,8 @@ bool prcmu_pending_irq(void)
  */
 bool prcmu_is_cpu_in_wfi(int cpu)
 {
-	return readl(PRCM_ARM_WFI_STANDBY) & cpu ? PRCM_ARM_WFI_STANDBY_WFI1 :
-		     PRCM_ARM_WFI_STANDBY_WFI0;
+	return readl(PRCM_ARM_WFI_STANDBY) &
+		(cpu ? PRCM_ARM_WFI_STANDBY_WFI1 : PRCM_ARM_WFI_STANDBY_WFI0);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mach-zynq/common.c linux-libre-4.9.52-gnu/arch/arm/mach-zynq/common.c
--- linux-libre-4.9-gnu/arch/arm/mach-zynq/common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mach-zynq/common.c	2017-09-27 08:40:05.000000000 -0400
@@ -59,7 +59,7 @@ void __iomem *zynq_scu_base;
 static void __init zynq_memory_init(void)
 {
 	if (!__pa(PAGE_OFFSET))
-		memblock_reserve(__pa(PAGE_OFFSET), __pa(swapper_pg_dir));
+		memblock_reserve(__pa(PAGE_OFFSET), 0x80000);
 }
 
 static struct platform_device zynq_cpuidle_device = {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mm/fault.c linux-libre-4.9.52-gnu/arch/arm/mm/fault.c
--- linux-libre-4.9-gnu/arch/arm/mm/fault.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mm/fault.c	2017-09-27 08:40:05.000000000 -0400
@@ -314,8 +314,11 @@ retry:
 	 * signal first. We do not need to release the mmap_sem because
 	 * it would already be released in __lock_page_or_retry in
 	 * mm/filemap.c. */
-	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) {
+		if (!user_mode(regs))
+			goto no_context;
 		return 0;
+	}
 
 	/*
 	 * Major/minor page fault accounting is only done on the
@@ -610,9 +613,9 @@ static int __init early_abort_handler(un
 
 void __init early_abt_enable(void)
 {
-	fsr_info[22].fn = early_abort_handler;
+	fsr_info[FSR_FS_AEA].fn = early_abort_handler;
 	local_abt_enable();
-	fsr_info[22].fn = do_bad;
+	fsr_info[FSR_FS_AEA].fn = do_bad;
 }
 
 #ifndef CONFIG_ARM_LPAE
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mm/fault.h linux-libre-4.9.52-gnu/arch/arm/mm/fault.h
--- linux-libre-4.9-gnu/arch/arm/mm/fault.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mm/fault.h	2017-09-27 08:40:05.000000000 -0400
@@ -11,11 +11,15 @@
 #define FSR_FS5_0		(0x3f)
 
 #ifdef CONFIG_ARM_LPAE
+#define FSR_FS_AEA		17
+
 static inline int fsr_fs(unsigned int fsr)
 {
 	return fsr & FSR_FS5_0;
 }
 #else
+#define FSR_FS_AEA		22
+
 static inline int fsr_fs(unsigned int fsr)
 {
 	return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mm/mmap.c linux-libre-4.9.52-gnu/arch/arm/mm/mmap.c
--- linux-libre-4.9-gnu/arch/arm/mm/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mm/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -89,7 +89,7 @@ arch_get_unmapped_area(struct file *filp
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -140,7 +140,7 @@ arch_get_unmapped_area_topdown(struct fi
 			addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mm/mmu.c linux-libre-4.9.52-gnu/arch/arm/mm/mmu.c
--- linux-libre-4.9-gnu/arch/arm/mm/mmu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mm/mmu.c	2017-09-27 08:40:05.000000000 -0400
@@ -1152,13 +1152,12 @@ early_param("vmalloc", early_vmalloc);
 
 phys_addr_t arm_lowmem_limit __initdata = 0;
 
-void __init sanity_check_meminfo(void)
+void __init adjust_lowmem_bounds(void)
 {
 	phys_addr_t memblock_limit = 0;
-	int highmem = 0;
 	u64 vmalloc_limit;
 	struct memblock_region *reg;
-	bool should_use_highmem = false;
+	phys_addr_t lowmem_limit = 0;
 
 	/*
 	 * Let's use our own (unoptimized) equivalent of __pa() that is
@@ -1172,43 +1171,18 @@ void __init sanity_check_meminfo(void)
 	for_each_memblock(memory, reg) {
 		phys_addr_t block_start = reg->base;
 		phys_addr_t block_end = reg->base + reg->size;
-		phys_addr_t size_limit = reg->size;
-
-		if (reg->base >= vmalloc_limit)
-			highmem = 1;
-		else
-			size_limit = vmalloc_limit - reg->base;
-
 
-		if (!IS_ENABLED(CONFIG_HIGHMEM) || cache_is_vipt_aliasing()) {
-
-			if (highmem) {
-				pr_notice("Ignoring RAM at %pa-%pa (!CONFIG_HIGHMEM)\n",
-					  &block_start, &block_end);
-				memblock_remove(reg->base, reg->size);
-				should_use_highmem = true;
-				continue;
-			}
-
-			if (reg->size > size_limit) {
-				phys_addr_t overlap_size = reg->size - size_limit;
-
-				pr_notice("Truncating RAM at %pa-%pa",
-					  &block_start, &block_end);
-				block_end = vmalloc_limit;
-				pr_cont(" to -%pa", &block_end);
-				memblock_remove(vmalloc_limit, overlap_size);
-				should_use_highmem = true;
-			}
-		}
-
-		if (!highmem) {
-			if (block_end > arm_lowmem_limit) {
-				if (reg->size > size_limit)
-					arm_lowmem_limit = vmalloc_limit;
-				else
-					arm_lowmem_limit = block_end;
-			}
+		if (reg->base < vmalloc_limit) {
+			if (block_end > lowmem_limit)
+				/*
+				 * Compare as u64 to ensure vmalloc_limit does
+				 * not get truncated. block_end should always
+				 * fit in phys_addr_t so there should be no
+				 * issue with assignment.
+				 */
+				lowmem_limit = min_t(u64,
+							 vmalloc_limit,
+							 block_end);
 
 			/*
 			 * Find the first non-pmd-aligned page, and point
@@ -1227,26 +1201,37 @@ void __init sanity_check_meminfo(void)
 				if (!IS_ALIGNED(block_start, PMD_SIZE))
 					memblock_limit = block_start;
 				else if (!IS_ALIGNED(block_end, PMD_SIZE))
-					memblock_limit = arm_lowmem_limit;
+					memblock_limit = lowmem_limit;
 			}
 
 		}
 	}
 
-	if (should_use_highmem)
-		pr_notice("Consider using a HIGHMEM enabled kernel.\n");
+	arm_lowmem_limit = lowmem_limit;
 
 	high_memory = __va(arm_lowmem_limit - 1) + 1;
 
+	if (!memblock_limit)
+		memblock_limit = arm_lowmem_limit;
+
 	/*
 	 * Round the memblock limit down to a pmd size.  This
 	 * helps to ensure that we will allocate memory from the
 	 * last full pmd, which should be mapped.
 	 */
-	if (memblock_limit)
-		memblock_limit = round_down(memblock_limit, PMD_SIZE);
-	if (!memblock_limit)
-		memblock_limit = arm_lowmem_limit;
+	memblock_limit = round_down(memblock_limit, PMD_SIZE);
+
+	if (!IS_ENABLED(CONFIG_HIGHMEM) || cache_is_vipt_aliasing()) {
+		if (memblock_end_of_DRAM() > arm_lowmem_limit) {
+			phys_addr_t end = memblock_end_of_DRAM();
+
+			pr_notice("Ignoring RAM at %pa-%pa\n",
+				  &memblock_limit, &end);
+			pr_notice("Consider using a HIGHMEM enabled kernel.\n");
+
+			memblock_remove(memblock_limit, end - memblock_limit);
+		}
+	}
 
 	memblock_set_current_limit(memblock_limit);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mm/nommu.c linux-libre-4.9.52-gnu/arch/arm/mm/nommu.c
--- linux-libre-4.9-gnu/arch/arm/mm/nommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mm/nommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,7 +85,7 @@ static unsigned long irbar_read(void)
 }
 
 /* MPU initialisation functions */
-void __init sanity_check_meminfo_mpu(void)
+void __init adjust_lowmem_bounds_mpu(void)
 {
 	phys_addr_t phys_offset = PHYS_OFFSET;
 	phys_addr_t aligned_region_size, specified_mem_size, rounded_mem_size;
@@ -274,7 +274,7 @@ void __init mpu_setup(void)
 	}
 }
 #else
-static void sanity_check_meminfo_mpu(void) {}
+static void adjust_lowmem_bounds_mpu(void) {}
 static void __init mpu_setup(void) {}
 #endif /* CONFIG_ARM_MPU */
 
@@ -295,10 +295,10 @@ void __init arm_mm_memblock_reserve(void
 #endif
 }
 
-void __init sanity_check_meminfo(void)
+void __init adjust_lowmem_bounds(void)
 {
 	phys_addr_t end;
-	sanity_check_meminfo_mpu();
+	adjust_lowmem_bounds_mpu();
 	end = memblock_end_of_DRAM();
 	high_memory = __va(end - 1) + 1;
 	memblock_set_current_limit(end);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/mm/proc-v7m.S linux-libre-4.9.52-gnu/arch/arm/mm/proc-v7m.S
--- linux-libre-4.9-gnu/arch/arm/mm/proc-v7m.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/mm/proc-v7m.S	2017-09-27 08:40:05.000000000 -0400
@@ -147,10 +147,10 @@ __v7m_setup_cont:
 
 	@ Configure caches (if implemented)
 	teq     r8, #0
-	stmneia	r12, {r0-r6, lr}	@ v7m_invalidate_l1 touches r0-r6
+	stmneia	sp, {r0-r6, lr}		@ v7m_invalidate_l1 touches r0-r6
 	blne	v7m_invalidate_l1
 	teq     r8, #0			@ re-evalutae condition
-	ldmneia	r12, {r0-r6, lr}
+	ldmneia	sp, {r0-r6, lr}
 
 	@ Configure the System Control Register to ensure 8-byte stack alignment
 	@ Note the STKALIGN bit is either RW or RAO.
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm/xen/enlighten.c linux-libre-4.9.52-gnu/arch/arm/xen/enlighten.c
--- linux-libre-4.9-gnu/arch/arm/xen/enlighten.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm/xen/enlighten.c	2017-09-27 08:40:05.000000000 -0400
@@ -372,8 +372,7 @@ static int __init xen_guest_init(void)
 	 * for secondary CPUs as they are brought up.
 	 * For uniformity we use VCPUOP_register_vcpu_info even on cpu0.
 	 */
-	xen_vcpu_info = __alloc_percpu(sizeof(struct vcpu_info),
-			                       sizeof(struct vcpu_info));
+	xen_vcpu_info = alloc_percpu(struct vcpu_info);
 	if (xen_vcpu_info == NULL)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts linux-libre-4.9.52-gnu/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts	2017-09-27 08:40:05.000000000 -0400
@@ -85,6 +85,18 @@
 	status = "okay";
 	pinctrl-0 = <&eth_pins>;
 	pinctrl-names = "default";
+	phy-handle = <&eth_phy0>;
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		eth_phy0: ethernet-phy@0 {
+			reg = <0>;
+			eee-broken-1000t;
+		};
+	};
 };
 
 &ir {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/broadcom/bcm2837.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/broadcom/bcm2837.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/broadcom/bcm2837.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/broadcom/bcm2837.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -1,7 +1,7 @@
 #include "bcm283x.dtsi"
 
 / {
-	compatible = "brcm,bcm2836";
+	compatible = "brcm,bcm2837";
 
 	soc {
 		ranges = <0x7e000000 0x3f000000 0x1000000>,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts linux-libre-4.9.52-gnu/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts	2017-09-27 08:40:05.000000000 -0400
@@ -15,13 +15,6 @@
 		act {
 			gpios = <&gpio 47 0>;
 		};
-
-		pwr {
-			label = "PWR";
-			gpios = <&gpio 35 0>;
-			default-state = "keep";
-			linux,default-trigger = "default-on";
-		};
 	};
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/hisilicon/hi6220.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/hisilicon/hi6220.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/hisilicon/hi6220.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -772,6 +772,7 @@
 			clocks = <&sys_ctrl 2>, <&sys_ctrl 1>;
 			clock-names = "ciu", "biu";
 			resets = <&sys_ctrl PERIPH_RSTDIS0_MMC0>;
+			reset-names = "reset";
 			bus-width = <0x8>;
 			vmmc-supply = <&ldo19>;
 			pinctrl-names = "default";
@@ -795,6 +796,7 @@
 			clocks = <&sys_ctrl 4>, <&sys_ctrl 3>;
 			clock-names = "ciu", "biu";
 			resets = <&sys_ctrl PERIPH_RSTDIS0_MMC1>;
+			reset-names = "reset";
 			vqmmc-supply = <&ldo7>;
 			vmmc-supply = <&ldo10>;
 			bus-width = <0x4>;
@@ -813,6 +815,7 @@
 			clocks = <&sys_ctrl HI6220_MMC2_CIUCLK>, <&sys_ctrl HI6220_MMC2_CLK>;
 			clock-names = "ciu", "biu";
 			resets = <&sys_ctrl PERIPH_RSTDIS0_MMC2>;
+			reset-names = "reset";
 			bus-width = <0x4>;
 			broken-cd;
 			pinctrl-names = "default", "idle";
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/hisilicon/hip06.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/hisilicon/hip06.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/hisilicon/hip06.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/hisilicon/hip06.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -322,7 +322,7 @@
 			compatible = "generic-ohci";
 			reg = <0x0 0xa7030000 0x0 0x10000>;
 			interrupt-parent = <&mbigen_usb>;
-			interrupts = <64 4>;
+			interrupts = <640 4>;
 			dma-coherent;
 			status = "disabled";
 		};
@@ -331,7 +331,7 @@
 			compatible = "generic-ehci";
 			reg = <0x0 0xa7020000 0x0 0x10000>;
 			interrupt-parent = <&mbigen_usb>;
-			interrupts = <65 4>;
+			interrupts = <641 4>;
 			dma-coherent;
 			status = "disabled";
 		};
@@ -590,7 +590,7 @@
 			reg = <0 0xa2000000 0 0x10000>;
 			sas-addr = [50 01 88 20 16 00 00 00];
 			hisilicon,sas-syscon = <&pcie_subctl>;
-			am-max-trans;
+			hip06-sas-v2-quirk-amt;
 			ctrl-reset-reg = <0xa18>;
 			ctrl-reset-sts-reg = <0x5a0c>;
 			ctrl-clock-ena-reg = <0x318>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/marvell/armada-37xx.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/marvell/armada-37xx.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/marvell/armada-37xx.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -75,14 +75,10 @@
 
 	timer {
 		compatible = "arm,armv8-timer";
-		interrupts = <GIC_PPI 13
-			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
-			     <GIC_PPI 14
-			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
-			     <GIC_PPI 11
-			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
-			     <GIC_PPI 10
-			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
 	soc {
@@ -174,6 +170,7 @@
 				interrupt-controller;
 				reg = <0x1d00000 0x10000>, /* GICD */
 				      <0x1d40000 0x40000>; /* GICR */
+				interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
 			};
 		};
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/mediatek/mt8173.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/mediatek/mt8173.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/mediatek/mt8173.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/mediatek/mt8173.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -450,6 +450,9 @@
 		auxadc: auxadc@11001000 {
 			compatible = "mediatek,mt8173-auxadc";
 			reg = <0 0x11001000 0 0x1000>;
+			clocks = <&pericfg CLK_PERI_AUXADC>;
+			clock-names = "main";
+			#io-channel-cells = <1>;
 		};
 
 		uart0: serial@11002000 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -21,6 +21,10 @@
 		reg = <0x0 0x80000000 0x1 0x0>;
 	};
 
+	gpu@57000000 {
+		vdd-supply = <&vdd_gpu>;
+	};
+
 	/* debug port */
 	serial@70006000 {
 		status = "okay";
@@ -291,4 +295,18 @@
 			clock-frequency = <32768>;
 		};
 	};
+
+	regulators {
+		vdd_gpu: regulator@100 {
+			compatible = "pwm-regulator";
+			reg = <100>;
+			pwms = <&pwm 1 4880>;
+			regulator-name = "VDD_GPU";
+			regulator-min-microvolt = <710000>;
+			regulator-max-microvolt = <1320000>;
+			enable-gpios = <&pmic 6 GPIO_ACTIVE_HIGH>;
+			regulator-ramp-delay = <80>;
+			regulator-enable-ramp-delay = <1000>;
+		};
+	};
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/renesas/r8a7795.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/renesas/r8a7795.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/renesas/r8a7795.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/renesas/r8a7795.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -553,6 +553,7 @@
 			phy-mode = "rgmii-id";
 			#address-cells = <1>;
 			#size-cells = <0>;
+			status = "disabled";
 		};
 
 		can0: can@e6c30000 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi linux-libre-4.9.52-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/xilinx/zynqmp.dtsi	2017-09-27 08:40:05.000000000 -0400
@@ -72,7 +72,7 @@
 			     <1 10 0xf08>;
 	};
 
-	amba_apu {
+	amba_apu: amba_apu@0 {
 		compatible = "simple-bus";
 		#address-cells = <2>;
 		#size-cells = <1>;
@@ -175,7 +175,7 @@
 		};
 
 		i2c0: i2c@ff020000 {
-			compatible = "cdns,i2c-r1p10";
+			compatible = "cdns,i2c-r1p14", "cdns,i2c-r1p10";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 17 4>;
@@ -185,7 +185,7 @@
 		};
 
 		i2c1: i2c@ff030000 {
-			compatible = "cdns,i2c-r1p10";
+			compatible = "cdns,i2c-r1p14", "cdns,i2c-r1p10";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 18 4>;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts linux-libre-4.9.52-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts
--- linux-libre-4.9-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/boot/dts/xilinx/zynqmp-ep108.dts	2017-09-27 08:40:05.000000000 -0400
@@ -27,7 +27,7 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x0 0x0 0x40000000>;
 	};
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/aes-ce-ccm-core.S linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-ce-ccm-core.S
--- linux-libre-4.9-gnu/arch/arm64/crypto/aes-ce-ccm-core.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-ce-ccm-core.S	2017-09-27 08:40:05.000000000 -0400
@@ -9,6 +9,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 
 	.text
 	.arch	armv8-a+crypto
@@ -19,7 +20,7 @@
 	 */
 ENTRY(ce_aes_ccm_auth_data)
 	ldr	w8, [x3]			/* leftover from prev round? */
-	ld1	{v0.2d}, [x0]			/* load mac */
+	ld1	{v0.16b}, [x0]			/* load mac */
 	cbz	w8, 1f
 	sub	w8, w8, #16
 	eor	v1.16b, v1.16b, v1.16b
@@ -31,7 +32,7 @@ ENTRY(ce_aes_ccm_auth_data)
 	beq	8f				/* out of input? */
 	cbnz	w8, 0b
 	eor	v0.16b, v0.16b, v1.16b
-1:	ld1	{v3.2d}, [x4]			/* load first round key */
+1:	ld1	{v3.16b}, [x4]			/* load first round key */
 	prfm	pldl1strm, [x1]
 	cmp	w5, #12				/* which key size? */
 	add	x6, x4, #16
@@ -41,17 +42,17 @@ ENTRY(ce_aes_ccm_auth_data)
 	mov	v5.16b, v3.16b
 	b	4f
 2:	mov	v4.16b, v3.16b
-	ld1	{v5.2d}, [x6], #16		/* load 2nd round key */
+	ld1	{v5.16b}, [x6], #16		/* load 2nd round key */
 3:	aese	v0.16b, v4.16b
 	aesmc	v0.16b, v0.16b
-4:	ld1	{v3.2d}, [x6], #16		/* load next round key */
+4:	ld1	{v3.16b}, [x6], #16		/* load next round key */
 	aese	v0.16b, v5.16b
 	aesmc	v0.16b, v0.16b
-5:	ld1	{v4.2d}, [x6], #16		/* load next round key */
+5:	ld1	{v4.16b}, [x6], #16		/* load next round key */
 	subs	w7, w7, #3
 	aese	v0.16b, v3.16b
 	aesmc	v0.16b, v0.16b
-	ld1	{v5.2d}, [x6], #16		/* load next round key */
+	ld1	{v5.16b}, [x6], #16		/* load next round key */
 	bpl	3b
 	aese	v0.16b, v4.16b
 	subs	w2, w2, #16			/* last data? */
@@ -60,7 +61,7 @@ ENTRY(ce_aes_ccm_auth_data)
 	ld1	{v1.16b}, [x1], #16		/* load next input block */
 	eor	v0.16b, v0.16b, v1.16b		/* xor with mac */
 	bne	1b
-6:	st1	{v0.2d}, [x0]			/* store mac */
+6:	st1	{v0.16b}, [x0]			/* store mac */
 	beq	10f
 	adds	w2, w2, #16
 	beq	10f
@@ -79,7 +80,7 @@ ENTRY(ce_aes_ccm_auth_data)
 	adds	w7, w7, #1
 	bne	9b
 	eor	v0.16b, v0.16b, v1.16b
-	st1	{v0.2d}, [x0]
+	st1	{v0.16b}, [x0]
 10:	str	w8, [x3]
 	ret
 ENDPROC(ce_aes_ccm_auth_data)
@@ -89,27 +90,27 @@ ENDPROC(ce_aes_ccm_auth_data)
 	 * 			 u32 rounds);
 	 */
 ENTRY(ce_aes_ccm_final)
-	ld1	{v3.2d}, [x2], #16		/* load first round key */
-	ld1	{v0.2d}, [x0]			/* load mac */
+	ld1	{v3.16b}, [x2], #16		/* load first round key */
+	ld1	{v0.16b}, [x0]			/* load mac */
 	cmp	w3, #12				/* which key size? */
 	sub	w3, w3, #2			/* modified # of rounds */
-	ld1	{v1.2d}, [x1]			/* load 1st ctriv */
+	ld1	{v1.16b}, [x1]			/* load 1st ctriv */
 	bmi	0f
 	bne	3f
 	mov	v5.16b, v3.16b
 	b	2f
 0:	mov	v4.16b, v3.16b
-1:	ld1	{v5.2d}, [x2], #16		/* load next round key */
+1:	ld1	{v5.16b}, [x2], #16		/* load next round key */
 	aese	v0.16b, v4.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v4.16b
 	aesmc	v1.16b, v1.16b
-2:	ld1	{v3.2d}, [x2], #16		/* load next round key */
+2:	ld1	{v3.16b}, [x2], #16		/* load next round key */
 	aese	v0.16b, v5.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v5.16b
 	aesmc	v1.16b, v1.16b
-3:	ld1	{v4.2d}, [x2], #16		/* load next round key */
+3:	ld1	{v4.16b}, [x2], #16		/* load next round key */
 	subs	w3, w3, #3
 	aese	v0.16b, v3.16b
 	aesmc	v0.16b, v0.16b
@@ -120,47 +121,47 @@ ENTRY(ce_aes_ccm_final)
 	aese	v1.16b, v4.16b
 	/* final round key cancels out */
 	eor	v0.16b, v0.16b, v1.16b		/* en-/decrypt the mac */
-	st1	{v0.2d}, [x0]			/* store result */
+	st1	{v0.16b}, [x0]			/* store result */
 	ret
 ENDPROC(ce_aes_ccm_final)
 
 	.macro	aes_ccm_do_crypt,enc
 	ldr	x8, [x6, #8]			/* load lower ctr */
-	ld1	{v0.2d}, [x5]			/* load mac */
-	rev	x8, x8				/* keep swabbed ctr in reg */
+	ld1	{v0.16b}, [x5]			/* load mac */
+CPU_LE(	rev	x8, x8			)	/* keep swabbed ctr in reg */
 0:	/* outer loop */
-	ld1	{v1.1d}, [x6]			/* load upper ctr */
+	ld1	{v1.8b}, [x6]			/* load upper ctr */
 	prfm	pldl1strm, [x1]
 	add	x8, x8, #1
 	rev	x9, x8
 	cmp	w4, #12				/* which key size? */
 	sub	w7, w4, #2			/* get modified # of rounds */
 	ins	v1.d[1], x9			/* no carry in lower ctr */
-	ld1	{v3.2d}, [x3]			/* load first round key */
+	ld1	{v3.16b}, [x3]			/* load first round key */
 	add	x10, x3, #16
 	bmi	1f
 	bne	4f
 	mov	v5.16b, v3.16b
 	b	3f
 1:	mov	v4.16b, v3.16b
-	ld1	{v5.2d}, [x10], #16		/* load 2nd round key */
+	ld1	{v5.16b}, [x10], #16		/* load 2nd round key */
 2:	/* inner loop: 3 rounds, 2x interleaved */
 	aese	v0.16b, v4.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v4.16b
 	aesmc	v1.16b, v1.16b
-3:	ld1	{v3.2d}, [x10], #16		/* load next round key */
+3:	ld1	{v3.16b}, [x10], #16		/* load next round key */
 	aese	v0.16b, v5.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v5.16b
 	aesmc	v1.16b, v1.16b
-4:	ld1	{v4.2d}, [x10], #16		/* load next round key */
+4:	ld1	{v4.16b}, [x10], #16		/* load next round key */
 	subs	w7, w7, #3
 	aese	v0.16b, v3.16b
 	aesmc	v0.16b, v0.16b
 	aese	v1.16b, v3.16b
 	aesmc	v1.16b, v1.16b
-	ld1	{v5.2d}, [x10], #16		/* load next round key */
+	ld1	{v5.16b}, [x10], #16		/* load next round key */
 	bpl	2b
 	aese	v0.16b, v4.16b
 	aese	v1.16b, v4.16b
@@ -177,14 +178,14 @@ ENDPROC(ce_aes_ccm_final)
 	eor	v0.16b, v0.16b, v2.16b		/* xor mac with pt ^ rk[last] */
 	st1	{v1.16b}, [x0], #16		/* write output block */
 	bne	0b
-	rev	x8, x8
-	st1	{v0.2d}, [x5]			/* store mac */
+CPU_LE(	rev	x8, x8			)
+	st1	{v0.16b}, [x5]			/* store mac */
 	str	x8, [x6, #8]			/* store lsb end of ctr (BE) */
 5:	ret
 
 6:	eor	v0.16b, v0.16b, v5.16b		/* final round mac */
 	eor	v1.16b, v1.16b, v5.16b		/* final round enc */
-	st1	{v0.2d}, [x5]			/* store mac */
+	st1	{v0.16b}, [x5]			/* store mac */
 	add	w2, w2, #16			/* process partial tail block */
 7:	ldrb	w9, [x1], #1			/* get 1 byte of input */
 	umov	w6, v1.b[0]			/* get top crypted ctr byte */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/aes-ce-cipher.c linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-ce-cipher.c
--- linux-libre-4.9-gnu/arch/arm64/crypto/aes-ce-cipher.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-ce-cipher.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,24 +47,24 @@ static void aes_cipher_encrypt(struct cr
 	kernel_neon_begin_partial(4);
 
 	__asm__("	ld1	{v0.16b}, %[in]			;"
-		"	ld1	{v1.2d}, [%[key]], #16		;"
+		"	ld1	{v1.16b}, [%[key]], #16		;"
 		"	cmp	%w[rounds], #10			;"
 		"	bmi	0f				;"
 		"	bne	3f				;"
 		"	mov	v3.16b, v1.16b			;"
 		"	b	2f				;"
 		"0:	mov	v2.16b, v1.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"1:	aese	v0.16b, v2.16b			;"
 		"	aesmc	v0.16b, v0.16b			;"
-		"2:	ld1	{v1.2d}, [%[key]], #16		;"
+		"2:	ld1	{v1.16b}, [%[key]], #16		;"
 		"	aese	v0.16b, v3.16b			;"
 		"	aesmc	v0.16b, v0.16b			;"
-		"3:	ld1	{v2.2d}, [%[key]], #16		;"
+		"3:	ld1	{v2.16b}, [%[key]], #16		;"
 		"	subs	%w[rounds], %w[rounds], #3	;"
 		"	aese	v0.16b, v1.16b			;"
 		"	aesmc	v0.16b, v0.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"	bpl	1b				;"
 		"	aese	v0.16b, v2.16b			;"
 		"	eor	v0.16b, v0.16b, v3.16b		;"
@@ -92,24 +92,24 @@ static void aes_cipher_decrypt(struct cr
 	kernel_neon_begin_partial(4);
 
 	__asm__("	ld1	{v0.16b}, %[in]			;"
-		"	ld1	{v1.2d}, [%[key]], #16		;"
+		"	ld1	{v1.16b}, [%[key]], #16		;"
 		"	cmp	%w[rounds], #10			;"
 		"	bmi	0f				;"
 		"	bne	3f				;"
 		"	mov	v3.16b, v1.16b			;"
 		"	b	2f				;"
 		"0:	mov	v2.16b, v1.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"1:	aesd	v0.16b, v2.16b			;"
 		"	aesimc	v0.16b, v0.16b			;"
-		"2:	ld1	{v1.2d}, [%[key]], #16		;"
+		"2:	ld1	{v1.16b}, [%[key]], #16		;"
 		"	aesd	v0.16b, v3.16b			;"
 		"	aesimc	v0.16b, v0.16b			;"
-		"3:	ld1	{v2.2d}, [%[key]], #16		;"
+		"3:	ld1	{v2.16b}, [%[key]], #16		;"
 		"	subs	%w[rounds], %w[rounds], #3	;"
 		"	aesd	v0.16b, v1.16b			;"
 		"	aesimc	v0.16b, v0.16b			;"
-		"	ld1	{v3.2d}, [%[key]], #16		;"
+		"	ld1	{v3.16b}, [%[key]], #16		;"
 		"	bpl	1b				;"
 		"	aesd	v0.16b, v2.16b			;"
 		"	eor	v0.16b, v0.16b, v3.16b		;"
@@ -173,7 +173,12 @@ int ce_aes_expandkey(struct crypto_aes_c
 		u32 *rki = ctx->key_enc + (i * kwords);
 		u32 *rko = rki + kwords;
 
+#ifndef CONFIG_CPU_BIG_ENDIAN
 		rko[0] = ror32(aes_sub(rki[kwords - 1]), 8) ^ rcon[i] ^ rki[0];
+#else
+		rko[0] = rol32(aes_sub(rki[kwords - 1]), 8) ^ (rcon[i] << 24) ^
+			 rki[0];
+#endif
 		rko[1] = rko[0] ^ rki[1];
 		rko[2] = rko[1] ^ rki[2];
 		rko[3] = rko[2] ^ rki[3];
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/aes-ce.S linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-ce.S
--- linux-libre-4.9-gnu/arch/arm64/crypto/aes-ce.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-ce.S	2017-09-27 08:40:05.000000000 -0400
@@ -10,6 +10,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 
 #define AES_ENTRY(func)		ENTRY(ce_ ## func)
 #define AES_ENDPROC(func)	ENDPROC(ce_ ## func)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/aes-modes.S linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-modes.S
--- linux-libre-4.9-gnu/arch/arm64/crypto/aes-modes.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-modes.S	2017-09-27 08:40:05.000000000 -0400
@@ -193,15 +193,16 @@ AES_ENTRY(aes_cbc_encrypt)
 	cbz		w6, .Lcbcencloop
 
 	ld1		{v0.16b}, [x5]			/* get iv */
-	enc_prepare	w3, x2, x5
+	enc_prepare	w3, x2, x6
 
 .Lcbcencloop:
 	ld1		{v1.16b}, [x1], #16		/* get next pt block */
 	eor		v0.16b, v0.16b, v1.16b		/* ..and xor with iv */
-	encrypt_block	v0, w3, x2, x5, w6
+	encrypt_block	v0, w3, x2, x6, w7
 	st1		{v0.16b}, [x0], #16
 	subs		w4, w4, #1
 	bne		.Lcbcencloop
+	st1		{v0.16b}, [x5]			/* return iv */
 	ret
 AES_ENDPROC(aes_cbc_encrypt)
 
@@ -211,7 +212,7 @@ AES_ENTRY(aes_cbc_decrypt)
 	cbz		w6, .LcbcdecloopNx
 
 	ld1		{v7.16b}, [x5]			/* get iv */
-	dec_prepare	w3, x2, x5
+	dec_prepare	w3, x2, x6
 
 .LcbcdecloopNx:
 #if INTERLEAVE >= 2
@@ -248,7 +249,7 @@ AES_ENTRY(aes_cbc_decrypt)
 .Lcbcdecloop:
 	ld1		{v1.16b}, [x1], #16		/* get next ct block */
 	mov		v0.16b, v1.16b			/* ...and copy to v0 */
-	decrypt_block	v0, w3, x2, x5, w6
+	decrypt_block	v0, w3, x2, x6, w7
 	eor		v0.16b, v0.16b, v7.16b		/* xor with iv => pt */
 	mov		v7.16b, v1.16b			/* ct is next iv */
 	st1		{v0.16b}, [x0], #16
@@ -256,6 +257,7 @@ AES_ENTRY(aes_cbc_decrypt)
 	bne		.Lcbcdecloop
 .Lcbcdecout:
 	FRAME_POP
+	st1		{v7.16b}, [x5]			/* return iv */
 	ret
 AES_ENDPROC(aes_cbc_decrypt)
 
@@ -267,24 +269,15 @@ AES_ENDPROC(aes_cbc_decrypt)
 
 AES_ENTRY(aes_ctr_encrypt)
 	FRAME_PUSH
-	cbnz		w6, .Lctrfirst		/* 1st time around? */
-	umov		x5, v4.d[1]		/* keep swabbed ctr in reg */
-	rev		x5, x5
-#if INTERLEAVE >= 2
-	cmn		w5, w4			/* 32 bit overflow? */
-	bcs		.Lctrinc
-	add		x5, x5, #1		/* increment BE ctr */
-	b		.LctrincNx
-#else
-	b		.Lctrinc
-#endif
-.Lctrfirst:
+	cbz		w6, .Lctrnotfirst	/* 1st time around? */
 	enc_prepare	w3, x2, x6
 	ld1		{v4.16b}, [x5]
-	umov		x5, v4.d[1]		/* keep swabbed ctr in reg */
-	rev		x5, x5
+
+.Lctrnotfirst:
+	umov		x8, v4.d[1]		/* keep swabbed ctr in reg */
+	rev		x8, x8
 #if INTERLEAVE >= 2
-	cmn		w5, w4			/* 32 bit overflow? */
+	cmn		w8, w4			/* 32 bit overflow? */
 	bcs		.Lctrloop
 .LctrloopNx:
 	subs		w4, w4, #INTERLEAVE
@@ -292,11 +285,11 @@ AES_ENTRY(aes_ctr_encrypt)
 #if INTERLEAVE == 2
 	mov		v0.8b, v4.8b
 	mov		v1.8b, v4.8b
-	rev		x7, x5
-	add		x5, x5, #1
+	rev		x7, x8
+	add		x8, x8, #1
 	ins		v0.d[1], x7
-	rev		x7, x5
-	add		x5, x5, #1
+	rev		x7, x8
+	add		x8, x8, #1
 	ins		v1.d[1], x7
 	ld1		{v2.16b-v3.16b}, [x1], #32	/* get 2 input blocks */
 	do_encrypt_block2x
@@ -305,7 +298,7 @@ AES_ENTRY(aes_ctr_encrypt)
 	st1		{v0.16b-v1.16b}, [x0], #32
 #else
 	ldr		q8, =0x30000000200000001	/* addends 1,2,3[,0] */
-	dup		v7.4s, w5
+	dup		v7.4s, w8
 	mov		v0.16b, v4.16b
 	add		v7.4s, v7.4s, v8.4s
 	mov		v1.16b, v4.16b
@@ -323,18 +316,12 @@ AES_ENTRY(aes_ctr_encrypt)
 	eor		v2.16b, v7.16b, v2.16b
 	eor		v3.16b, v5.16b, v3.16b
 	st1		{v0.16b-v3.16b}, [x0], #64
-	add		x5, x5, #INTERLEAVE
+	add		x8, x8, #INTERLEAVE
 #endif
-	cbz		w4, .LctroutNx
-.LctrincNx:
-	rev		x7, x5
+	rev		x7, x8
 	ins		v4.d[1], x7
+	cbz		w4, .Lctrout
 	b		.LctrloopNx
-.LctroutNx:
-	sub		x5, x5, #1
-	rev		x7, x5
-	ins		v4.d[1], x7
-	b		.Lctrout
 .Lctr1x:
 	adds		w4, w4, #INTERLEAVE
 	beq		.Lctrout
@@ -342,30 +329,39 @@ AES_ENTRY(aes_ctr_encrypt)
 .Lctrloop:
 	mov		v0.16b, v4.16b
 	encrypt_block	v0, w3, x2, x6, w7
+
+	adds		x8, x8, #1		/* increment BE ctr */
+	rev		x7, x8
+	ins		v4.d[1], x7
+	bcs		.Lctrcarry		/* overflow? */
+
+.Lctrcarrydone:
 	subs		w4, w4, #1
 	bmi		.Lctrhalfblock		/* blocks < 0 means 1/2 block */
 	ld1		{v3.16b}, [x1], #16
 	eor		v3.16b, v0.16b, v3.16b
 	st1		{v3.16b}, [x0], #16
-	beq		.Lctrout
-.Lctrinc:
-	adds		x5, x5, #1		/* increment BE ctr */
-	rev		x7, x5
-	ins		v4.d[1], x7
-	bcc		.Lctrloop		/* no overflow? */
-	umov		x7, v4.d[0]		/* load upper word of ctr  */
-	rev		x7, x7			/* ... to handle the carry */
-	add		x7, x7, #1
-	rev		x7, x7
-	ins		v4.d[0], x7
-	b		.Lctrloop
+	bne		.Lctrloop
+
+.Lctrout:
+	st1		{v4.16b}, [x5]		/* return next CTR value */
+	FRAME_POP
+	ret
+
 .Lctrhalfblock:
 	ld1		{v3.8b}, [x1]
 	eor		v3.8b, v0.8b, v3.8b
 	st1		{v3.8b}, [x0]
-.Lctrout:
 	FRAME_POP
 	ret
+
+.Lctrcarry:
+	umov		x7, v4.d[0]		/* load upper word of ctr  */
+	rev		x7, x7			/* ... to handle the carry */
+	add		x7, x7, #1
+	rev		x7, x7
+	ins		v4.d[0], x7
+	b		.Lctrcarrydone
 AES_ENDPROC(aes_ctr_encrypt)
 	.ltorg
 
@@ -386,7 +382,8 @@ AES_ENDPROC(aes_ctr_encrypt)
 	.endm
 
 .Lxts_mul_x:
-	.word		1, 0, 0x87, 0
+CPU_LE(	.quad		1, 0x87		)
+CPU_BE(	.quad		0x87, 1		)
 
 AES_ENTRY(aes_xts_encrypt)
 	FRAME_PUSH
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/aes-neon.S linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-neon.S
--- linux-libre-4.9-gnu/arch/arm64/crypto/aes-neon.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/aes-neon.S	2017-09-27 08:40:05.000000000 -0400
@@ -9,6 +9,7 @@
  */
 
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 
 #define AES_ENTRY(func)		ENTRY(neon_ ## func)
 #define AES_ENDPROC(func)	ENDPROC(neon_ ## func)
@@ -83,13 +84,13 @@
 	.endm
 
 	.macro		do_block, enc, in, rounds, rk, rkp, i
-	ld1		{v15.16b}, [\rk]
+	ld1		{v15.4s}, [\rk]
 	add		\rkp, \rk, #16
 	mov		\i, \rounds
 1111:	eor		\in\().16b, \in\().16b, v15.16b		/* ^round key */
 	tbl		\in\().16b, {\in\().16b}, v13.16b	/* ShiftRows */
 	sub_bytes	\in
-	ld1		{v15.16b}, [\rkp], #16
+	ld1		{v15.4s}, [\rkp], #16
 	subs		\i, \i, #1
 	beq		2222f
 	.if		\enc == 1
@@ -229,7 +230,7 @@
 	.endm
 
 	.macro		do_block_2x, enc, in0, in1 rounds, rk, rkp, i
-	ld1		{v15.16b}, [\rk]
+	ld1		{v15.4s}, [\rk]
 	add		\rkp, \rk, #16
 	mov		\i, \rounds
 1111:	eor		\in0\().16b, \in0\().16b, v15.16b	/* ^round key */
@@ -237,7 +238,7 @@
 	sub_bytes_2x	\in0, \in1
 	tbl		\in0\().16b, {\in0\().16b}, v13.16b	/* ShiftRows */
 	tbl		\in1\().16b, {\in1\().16b}, v13.16b	/* ShiftRows */
-	ld1		{v15.16b}, [\rkp], #16
+	ld1		{v15.4s}, [\rkp], #16
 	subs		\i, \i, #1
 	beq		2222f
 	.if		\enc == 1
@@ -254,7 +255,7 @@
 	.endm
 
 	.macro		do_block_4x, enc, in0, in1, in2, in3, rounds, rk, rkp, i
-	ld1		{v15.16b}, [\rk]
+	ld1		{v15.4s}, [\rk]
 	add		\rkp, \rk, #16
 	mov		\i, \rounds
 1111:	eor		\in0\().16b, \in0\().16b, v15.16b	/* ^round key */
@@ -266,7 +267,7 @@
 	tbl		\in1\().16b, {\in1\().16b}, v13.16b	/* ShiftRows */
 	tbl		\in2\().16b, {\in2\().16b}, v13.16b	/* ShiftRows */
 	tbl		\in3\().16b, {\in3\().16b}, v13.16b	/* ShiftRows */
-	ld1		{v15.16b}, [\rkp], #16
+	ld1		{v15.4s}, [\rkp], #16
 	subs		\i, \i, #1
 	beq		2222f
 	.if		\enc == 1
@@ -306,12 +307,16 @@
 	.text
 	.align		4
 .LForward_ShiftRows:
-	.byte		0x0, 0x5, 0xa, 0xf, 0x4, 0x9, 0xe, 0x3
-	.byte		0x8, 0xd, 0x2, 0x7, 0xc, 0x1, 0x6, 0xb
+CPU_LE(	.byte		0x0, 0x5, 0xa, 0xf, 0x4, 0x9, 0xe, 0x3	)
+CPU_LE(	.byte		0x8, 0xd, 0x2, 0x7, 0xc, 0x1, 0x6, 0xb	)
+CPU_BE(	.byte		0xb, 0x6, 0x1, 0xc, 0x7, 0x2, 0xd, 0x8	)
+CPU_BE(	.byte		0x3, 0xe, 0x9, 0x4, 0xf, 0xa, 0x5, 0x0	)
 
 .LReverse_ShiftRows:
-	.byte		0x0, 0xd, 0xa, 0x7, 0x4, 0x1, 0xe, 0xb
-	.byte		0x8, 0x5, 0x2, 0xf, 0xc, 0x9, 0x6, 0x3
+CPU_LE(	.byte		0x0, 0xd, 0xa, 0x7, 0x4, 0x1, 0xe, 0xb	)
+CPU_LE(	.byte		0x8, 0x5, 0x2, 0xf, 0xc, 0x9, 0x6, 0x3	)
+CPU_BE(	.byte		0x3, 0x6, 0x9, 0xc, 0xf, 0x2, 0x5, 0x8	)
+CPU_BE(	.byte		0xb, 0xe, 0x1, 0x4, 0x7, 0xa, 0xd, 0x0	)
 
 .LForward_Sbox:
 	.byte		0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/ghash-ce-core.S linux-libre-4.9.52-gnu/arch/arm64/crypto/ghash-ce-core.S
--- linux-libre-4.9-gnu/arch/arm64/crypto/ghash-ce-core.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/ghash-ce-core.S	2017-09-27 08:40:05.000000000 -0400
@@ -29,8 +29,8 @@
 	 *			   struct ghash_key const *k, const char *head)
 	 */
 ENTRY(pmull_ghash_update)
-	ld1		{SHASH.16b}, [x3]
-	ld1		{XL.16b}, [x1]
+	ld1		{SHASH.2d}, [x3]
+	ld1		{XL.2d}, [x1]
 	movi		MASK.16b, #0xe1
 	ext		SHASH2.16b, SHASH.16b, SHASH.16b, #8
 	shl		MASK.2d, MASK.2d, #57
@@ -74,6 +74,6 @@ CPU_LE(	rev64		T1.16b, T1.16b	)
 
 	cbnz		w0, 0b
 
-	st1		{XL.16b}, [x1]
+	st1		{XL.2d}, [x1]
 	ret
 ENDPROC(pmull_ghash_update)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/sha1-ce-core.S linux-libre-4.9.52-gnu/arch/arm64/crypto/sha1-ce-core.S
--- linux-libre-4.9-gnu/arch/arm64/crypto/sha1-ce-core.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/sha1-ce-core.S	2017-09-27 08:40:05.000000000 -0400
@@ -78,7 +78,7 @@ ENTRY(sha1_ce_transform)
 	ld1r		{k3.4s}, [x6]
 
 	/* load state */
-	ldr		dga, [x0]
+	ld1		{dgav.4s}, [x0]
 	ldr		dgb, [x0, #16]
 
 	/* load sha1_ce_state::finalize */
@@ -144,7 +144,7 @@ CPU_LE(	rev32		v11.16b, v11.16b	)
 	b		1b
 
 	/* store new state */
-3:	str		dga, [x0]
+3:	st1		{dgav.4s}, [x0]
 	str		dgb, [x0, #16]
 	ret
 ENDPROC(sha1_ce_transform)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/crypto/sha2-ce-core.S linux-libre-4.9.52-gnu/arch/arm64/crypto/sha2-ce-core.S
--- linux-libre-4.9-gnu/arch/arm64/crypto/sha2-ce-core.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/crypto/sha2-ce-core.S	2017-09-27 08:40:05.000000000 -0400
@@ -85,7 +85,7 @@ ENTRY(sha2_ce_transform)
 	ld1		{v12.4s-v15.4s}, [x8]
 
 	/* load state */
-	ldp		dga, dgb, [x0]
+	ld1		{dgav.4s, dgbv.4s}, [x0]
 
 	/* load sha256_ce_state::finalize */
 	ldr		w4, [x0, #:lo12:sha256_ce_offsetof_finalize]
@@ -148,6 +148,6 @@ CPU_LE(	rev32		v19.16b, v19.16b	)
 	b		1b
 
 	/* store new state */
-3:	stp		dga, dgb, [x0]
+3:	st1		{dgav.4s, dgbv.4s}, [x0]
 	ret
 ENDPROC(sha2_ce_transform)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/acpi.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/acpi.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/acpi.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/acpi.h	2017-09-27 08:40:05.000000000 -0400
@@ -22,9 +22,9 @@
 #define ACPI_MADT_GICC_LENGTH	\
 	(acpi_gbl_FADT.header.revision < 6 ? 76 : 80)
 
-#define BAD_MADT_GICC_ENTRY(entry, end)						\
-	(!(entry) || (unsigned long)(entry) + sizeof(*(entry)) > (end) ||	\
-	 (entry)->header.length != ACPI_MADT_GICC_LENGTH)
+#define BAD_MADT_GICC_ENTRY(entry, end)					\
+	(!(entry) || (entry)->header.length != ACPI_MADT_GICC_LENGTH ||	\
+	(unsigned long)(entry) + ACPI_MADT_GICC_LENGTH > (end))
 
 /* Basic configuration for ACPI */
 #ifdef	CONFIG_ACPI
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/asm-uaccess.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/asm-uaccess.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/asm-uaccess.h	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/asm-uaccess.h	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,13 @@
+#ifndef __ASM_ASM_UACCESS_H
+#define __ASM_ASM_UACCESS_H
+
+/*
+ * Remove the address tag from a virtual address, if present.
+ */
+	.macro	clear_address_tag, dst, addr
+	tst	\addr, #(1 << 55)
+	bic	\dst, \addr, #(0xff << 56)
+	csel	\dst, \dst, \addr, eq
+	.endm
+
+#endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/assembler.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/assembler.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/assembler.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/assembler.h	2017-09-27 08:40:05.000000000 -0400
@@ -155,22 +155,25 @@ lr	.req	x30		// link register
 
 /*
  * Pseudo-ops for PC-relative adr/ldr/str <reg>, <symbol> where
- * <symbol> is within the range +/- 4 GB of the PC.
+ * <symbol> is within the range +/- 4 GB of the PC when running
+ * in core kernel context. In module context, a movz/movk sequence
+ * is used, since modules may be loaded far away from the kernel
+ * when KASLR is in effect.
  */
 	/*
 	 * @dst: destination register (64 bit wide)
 	 * @sym: name of the symbol
-	 * @tmp: optional scratch register to be used if <dst> == sp, which
-	 *       is not allowed in an adrp instruction
 	 */
-	.macro	adr_l, dst, sym, tmp=
-	.ifb	\tmp
+	.macro	adr_l, dst, sym
+#ifndef MODULE
 	adrp	\dst, \sym
 	add	\dst, \dst, :lo12:\sym
-	.else
-	adrp	\tmp, \sym
-	add	\dst, \tmp, :lo12:\sym
-	.endif
+#else
+	movz	\dst, #:abs_g3:\sym
+	movk	\dst, #:abs_g2_nc:\sym
+	movk	\dst, #:abs_g1_nc:\sym
+	movk	\dst, #:abs_g0_nc:\sym
+#endif
 	.endm
 
 	/*
@@ -181,6 +184,7 @@ lr	.req	x30		// link register
 	 *       the address
 	 */
 	.macro	ldr_l, dst, sym, tmp=
+#ifndef MODULE
 	.ifb	\tmp
 	adrp	\dst, \sym
 	ldr	\dst, [\dst, :lo12:\sym]
@@ -188,6 +192,15 @@ lr	.req	x30		// link register
 	adrp	\tmp, \sym
 	ldr	\dst, [\tmp, :lo12:\sym]
 	.endif
+#else
+	.ifb	\tmp
+	adr_l	\dst, \sym
+	ldr	\dst, [\dst]
+	.else
+	adr_l	\tmp, \sym
+	ldr	\dst, [\tmp]
+	.endif
+#endif
 	.endm
 
 	/*
@@ -197,8 +210,13 @@ lr	.req	x30		// link register
 	 *       while <src> needs to be preserved.
 	 */
 	.macro	str_l, src, sym, tmp
+#ifndef MODULE
 	adrp	\tmp, \sym
 	str	\src, [\tmp, :lo12:\sym]
+#else
+	adr_l	\tmp, \sym
+	str	\src, [\tmp]
+#endif
 	.endm
 
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/barrier.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/barrier.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/barrier.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/barrier.h	2017-09-27 08:40:05.000000000 -0400
@@ -42,25 +42,35 @@
 #define __smp_rmb()	dmb(ishld)
 #define __smp_wmb()	dmb(ishst)
 
-#define __smp_store_release(p, v)						\
+#define __smp_store_release(p, v)					\
 do {									\
+	union { typeof(*p) __val; char __c[1]; } __u =			\
+		{ .__val = (__force typeof(*p)) (v) }; 			\
 	compiletime_assert_atomic_type(*p);				\
 	switch (sizeof(*p)) {						\
 	case 1:								\
 		asm volatile ("stlrb %w1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u8 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	case 2:								\
 		asm volatile ("stlrh %w1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u16 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	case 4:								\
 		asm volatile ("stlr %w1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u32 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	case 8:								\
 		asm volatile ("stlr %1, %0"				\
-				: "=Q" (*p) : "r" (v) : "memory");	\
+				: "=Q" (*p)				\
+				: "r" (*(__u64 *)__u.__c)		\
+				: "memory");				\
 		break;							\
 	}								\
 } while (0)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/cmpxchg.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/cmpxchg.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/cmpxchg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/cmpxchg.h	2017-09-27 08:40:05.000000000 -0400
@@ -46,7 +46,7 @@ static inline unsigned long __xchg_case_
 	"	swp" #acq_lse #rel #sz "\t%" #w "3, %" #w "0, %2\n"	\
 		__nops(3)						\
 	"	" #nop_lse)						\
-	: "=&r" (ret), "=&r" (tmp), "+Q" (*(u8 *)ptr)			\
+	: "=&r" (ret), "=&r" (tmp), "+Q" (*(unsigned long *)ptr)	\
 	: "r" (x)							\
 	: cl);								\
 									\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/elf.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/elf.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/elf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/elf.h	2017-09-27 08:40:05.000000000 -0400
@@ -113,12 +113,11 @@
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
 /*
- * This is the location that an ET_DYN program is loaded if exec'ed.  Typical
- * use of this is to invoke "./ld.so someprog" to test out a new version of
- * the loader.  We need to make sure that it is out of the way of the program
- * that it will "exec", and that there is sufficient room for the brk.
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
  */
-#define ELF_ET_DYN_BASE	(2 * TASK_SIZE_64 / 3)
+#define ELF_ET_DYN_BASE		(2 * TASK_SIZE_64 / 3)
 
 #ifndef __ASSEMBLY__
 
@@ -169,7 +168,8 @@ extern int arch_setup_additional_pages(s
 
 #ifdef CONFIG_COMPAT
 
-#define COMPAT_ELF_ET_DYN_BASE		(2 * TASK_SIZE_32 / 3)
+/* PIE load location for compat arm. Must match ARM ELF_ET_DYN_BASE. */
+#define COMPAT_ELF_ET_DYN_BASE		0x000400000UL
 
 /* AArch32 registers. */
 #define COMPAT_ELF_NGREG		18
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/kvm_emulate.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/kvm_emulate.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/kvm_emulate.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/kvm_emulate.h	2017-09-27 08:40:05.000000000 -0400
@@ -240,6 +240,12 @@ static inline u8 kvm_vcpu_trap_get_fault
 	return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_FSC_TYPE;
 }
 
+static inline int kvm_vcpu_sys_get_rt(struct kvm_vcpu *vcpu)
+{
+	u32 esr = kvm_vcpu_get_hsr(vcpu);
+	return (esr & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT;
+}
+
 static inline unsigned long kvm_vcpu_get_mpidr_aff(struct kvm_vcpu *vcpu)
 {
 	return vcpu_sys_reg(vcpu, MPIDR_EL1) & MPIDR_HWID_BITMASK;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/kvm_mmu.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/kvm_mmu.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/kvm_mmu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/kvm_mmu.h	2017-09-27 08:40:05.000000000 -0400
@@ -241,8 +241,7 @@ static inline void __coherent_cache_gues
 {
 	void *va = page_address(pfn_to_page(pfn));
 
-	if (!vcpu_has_cache_enabled(vcpu) || ipa_uncached)
-		kvm_flush_dcache_to_poc(va, size);
+	kvm_flush_dcache_to_poc(va, size);
 
 	if (!icache_is_aliasing()) {		/* PIPT */
 		flush_icache_range((unsigned long)va,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/memory.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/memory.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/memory.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/memory.h	2017-09-27 08:40:05.000000000 -0400
@@ -217,7 +217,7 @@ static inline void *phys_to_virt(phys_ad
 #define _virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
 #else
 #define __virt_to_pgoff(kaddr)	(((u64)(kaddr) & ~PAGE_OFFSET) / PAGE_SIZE * sizeof(struct page))
-#define __page_to_voff(page)	(((u64)(page) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
+#define __page_to_voff(kaddr)	(((u64)(kaddr) & ~VMEMMAP_START) * PAGE_SIZE / sizeof(struct page))
 
 #define page_to_virt(page)	((void *)((__page_to_voff(page)) | PAGE_OFFSET))
 #define virt_to_page(vaddr)	((struct page *)((__virt_to_pgoff(vaddr)) | VMEMMAP_START))
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/pgtable.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/pgtable.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/pgtable.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/pgtable.h	2017-09-27 08:40:05.000000000 -0400
@@ -71,9 +71,8 @@ extern unsigned long empty_zero_page[PAG
 #define pte_young(pte)		(!!(pte_val(pte) & PTE_AF))
 #define pte_special(pte)	(!!(pte_val(pte) & PTE_SPECIAL))
 #define pte_write(pte)		(!!(pte_val(pte) & PTE_WRITE))
-#define pte_exec(pte)		(!(pte_val(pte) & PTE_UXN))
+#define pte_user_exec(pte)	(!(pte_val(pte) & PTE_UXN))
 #define pte_cont(pte)		(!!(pte_val(pte) & PTE_CONT))
-#define pte_ng(pte)		(!!(pte_val(pte) & PTE_NG))
 
 #ifdef CONFIG_ARM64_HW_AFDBM
 #define pte_hw_dirty(pte)	(pte_write(pte) && !(pte_val(pte) & PTE_RDONLY))
@@ -84,8 +83,12 @@ extern unsigned long empty_zero_page[PAG
 #define pte_dirty(pte)		(pte_sw_dirty(pte) || pte_hw_dirty(pte))
 
 #define pte_valid(pte)		(!!(pte_val(pte) & PTE_VALID))
-#define pte_valid_global(pte) \
-	((pte_val(pte) & (PTE_VALID | PTE_NG)) == PTE_VALID)
+/*
+ * Execute-only user mappings do not have the PTE_USER bit set. All valid
+ * kernel mappings have the PTE_UXN bit set.
+ */
+#define pte_valid_not_user(pte) \
+	((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_UXN)) == (PTE_VALID | PTE_UXN))
 #define pte_valid_young(pte) \
 	((pte_val(pte) & (PTE_VALID | PTE_AF)) == (PTE_VALID | PTE_AF))
 
@@ -178,7 +181,7 @@ static inline void set_pte(pte_t *ptep,
 	 * Only if the new pte is valid and kernel, otherwise TLB maintenance
 	 * or update_mmu_cache() have the necessary barriers.
 	 */
-	if (pte_valid_global(pte)) {
+	if (pte_valid_not_user(pte)) {
 		dsb(ishst);
 		isb();
 	}
@@ -212,7 +215,7 @@ static inline void set_pte_at(struct mm_
 			pte_val(pte) &= ~PTE_RDONLY;
 		else
 			pte_val(pte) |= PTE_RDONLY;
-		if (pte_ng(pte) && pte_exec(pte) && !pte_special(pte))
+		if (pte_user_exec(pte) && !pte_special(pte))
 			__sync_icache_dcache(pte, addr);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/sysreg.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/sysreg.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/sysreg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/sysreg.h	2017-09-27 08:40:05.000000000 -0400
@@ -94,6 +94,10 @@
 #define SCTLR_ELx_A	(1 << 1)
 #define SCTLR_ELx_M	1
 
+#define SCTLR_EL2_RES1	((1 << 4)  | (1 << 5)  | (1 << 11) | (1 << 16) | \
+			 (1 << 16) | (1 << 18) | (1 << 22) | (1 << 23) | \
+			 (1 << 28) | (1 << 29))
+
 #define SCTLR_ELx_FLAGS	(SCTLR_ELx_M | SCTLR_ELx_A | SCTLR_ELx_C | \
 			 SCTLR_ELx_SA | SCTLR_ELx_I)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/asm/uaccess.h linux-libre-4.9.52-gnu/arch/arm64/include/asm/uaccess.h
--- linux-libre-4.9-gnu/arch/arm64/include/asm/uaccess.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/asm/uaccess.h	2017-09-27 08:40:05.000000000 -0400
@@ -93,20 +93,21 @@ static inline void set_fs(mm_segment_t f
  */
 #define __range_ok(addr, size)						\
 ({									\
+	unsigned long __addr = (unsigned long __force)(addr);		\
 	unsigned long flag, roksum;					\
 	__chk_user_ptr(addr);						\
 	asm("adds %1, %1, %3; ccmp %1, %4, #2, cc; cset %0, ls"		\
 		: "=&r" (flag), "=&r" (roksum)				\
-		: "1" (addr), "Ir" (size),				\
+		: "1" (__addr), "Ir" (size),				\
 		  "r" (current_thread_info()->addr_limit)		\
 		: "cc");						\
 	flag;								\
 })
 
 /*
- * When dealing with data aborts or instruction traps we may end up with
- * a tagged userland pointer. Clear the tag to get a sane pointer to pass
- * on to access_ok(), for instance.
+ * When dealing with data aborts, watchpoints, or instruction traps we may end
+ * up with a tagged userland pointer. Clear the tag to get a sane pointer to
+ * pass on to access_ok(), for instance.
  */
 #define untagged_addr(addr)		sign_extend64(addr, 55)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/include/uapi/asm/ptrace.h linux-libre-4.9.52-gnu/arch/arm64/include/uapi/asm/ptrace.h
--- linux-libre-4.9-gnu/arch/arm64/include/uapi/asm/ptrace.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/include/uapi/asm/ptrace.h	2017-09-27 08:40:05.000000000 -0400
@@ -77,6 +77,7 @@ struct user_fpsimd_state {
 	__uint128_t	vregs[32];
 	__u32		fpsr;
 	__u32		fpcr;
+	__u32		__reserved[2];
 };
 
 struct user_hwdebug_state {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/Kconfig linux-libre-4.9.52-gnu/arch/arm64/Kconfig
--- linux-libre-4.9-gnu/arch/arm64/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -474,6 +474,16 @@ config CAVIUM_ERRATUM_27456
 
 	  If unsure, say Y.
 
+config QCOM_QDF2400_ERRATUM_0065
+	bool "QDF2400 E0065: Incorrect GITS_TYPER.ITT_Entry_size"
+	default y
+	help
+	  On Qualcomm Datacenter Technologies QDF2400 SoC, ITS hardware reports
+	  ITE size incorrectly. The GITS_TYPER.ITT_Entry_size field should have
+	  been indicated as 16Bytes (0xf), not 8Bytes (0x7).
+
+	  If unsure, say Y.
+
 endmenu
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/arm64ksyms.c linux-libre-4.9.52-gnu/arch/arm64/kernel/arm64ksyms.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/arm64ksyms.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/arm64ksyms.c	2017-09-27 08:40:05.000000000 -0400
@@ -73,5 +73,5 @@ NOKPROBE_SYMBOL(_mcount);
 #endif
 
 	/* arm-smccc */
-EXPORT_SYMBOL(arm_smccc_smc);
-EXPORT_SYMBOL(arm_smccc_hvc);
+EXPORT_SYMBOL(__arm_smccc_smc);
+EXPORT_SYMBOL(__arm_smccc_hvc);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/armv8_deprecated.c linux-libre-4.9.52-gnu/arch/arm64/kernel/armv8_deprecated.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/armv8_deprecated.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/armv8_deprecated.c	2017-09-27 08:40:05.000000000 -0400
@@ -309,7 +309,8 @@ static void __init register_insn_emulati
 	ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN,	\
 		CONFIG_ARM64_PAN)				\
 	: "=&r" (res), "+r" (data), "=&r" (temp), "=&r" (temp2)	\
-	: "r" (addr), "i" (-EAGAIN), "i" (-EFAULT),		\
+	: "r" ((unsigned long)addr), "i" (-EAGAIN),		\
+	  "i" (-EFAULT),					\
 	  "i" (__SWP_LL_SC_LOOPS)				\
 	: "memory")
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/asm-offsets.c linux-libre-4.9.52-gnu/arch/arm64/kernel/asm-offsets.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/asm-offsets.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/asm-offsets.c	2017-09-27 08:40:05.000000000 -0400
@@ -140,8 +140,11 @@ int main(void)
   DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS,	offsetof(struct sleep_stack_data, system_regs));
   DEFINE(SLEEP_STACK_DATA_CALLEE_REGS,	offsetof(struct sleep_stack_data, callee_saved_regs));
 #endif
-  DEFINE(ARM_SMCCC_RES_X0_OFFS,	offsetof(struct arm_smccc_res, a0));
-  DEFINE(ARM_SMCCC_RES_X2_OFFS,	offsetof(struct arm_smccc_res, a2));
+  DEFINE(ARM_SMCCC_RES_X0_OFFS,		offsetof(struct arm_smccc_res, a0));
+  DEFINE(ARM_SMCCC_RES_X2_OFFS,		offsetof(struct arm_smccc_res, a2));
+  DEFINE(ARM_SMCCC_QUIRK_ID_OFFS,	offsetof(struct arm_smccc_quirk, id));
+  DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS,	offsetof(struct arm_smccc_quirk, state));
+
   BLANK();
   DEFINE(HIBERN_PBE_ORIG,	offsetof(struct pbe, orig_address));
   DEFINE(HIBERN_PBE_ADDR,	offsetof(struct pbe, address));
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/cpufeature.c linux-libre-4.9.52-gnu/arch/arm64/kernel/cpufeature.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/cpufeature.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/cpufeature.c	2017-09-27 08:40:05.000000000 -0400
@@ -653,15 +653,15 @@ static u64 __raw_read_system_reg(u32 sys
 	case SYS_ID_ISAR2_EL1:		return read_cpuid(ID_ISAR2_EL1);
 	case SYS_ID_ISAR3_EL1:		return read_cpuid(ID_ISAR3_EL1);
 	case SYS_ID_ISAR4_EL1:		return read_cpuid(ID_ISAR4_EL1);
-	case SYS_ID_ISAR5_EL1:		return read_cpuid(ID_ISAR4_EL1);
+	case SYS_ID_ISAR5_EL1:		return read_cpuid(ID_ISAR5_EL1);
 	case SYS_MVFR0_EL1:		return read_cpuid(MVFR0_EL1);
 	case SYS_MVFR1_EL1:		return read_cpuid(MVFR1_EL1);
 	case SYS_MVFR2_EL1:		return read_cpuid(MVFR2_EL1);
 
 	case SYS_ID_AA64PFR0_EL1:	return read_cpuid(ID_AA64PFR0_EL1);
-	case SYS_ID_AA64PFR1_EL1:	return read_cpuid(ID_AA64PFR0_EL1);
+	case SYS_ID_AA64PFR1_EL1:	return read_cpuid(ID_AA64PFR1_EL1);
 	case SYS_ID_AA64DFR0_EL1:	return read_cpuid(ID_AA64DFR0_EL1);
-	case SYS_ID_AA64DFR1_EL1:	return read_cpuid(ID_AA64DFR0_EL1);
+	case SYS_ID_AA64DFR1_EL1:	return read_cpuid(ID_AA64DFR1_EL1);
 	case SYS_ID_AA64MMFR0_EL1:	return read_cpuid(ID_AA64MMFR0_EL1);
 	case SYS_ID_AA64MMFR1_EL1:	return read_cpuid(ID_AA64MMFR1_EL1);
 	case SYS_ID_AA64MMFR2_EL1:	return read_cpuid(ID_AA64MMFR2_EL1);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/entry.S linux-libre-4.9.52-gnu/arch/arm64/kernel/entry.S
--- linux-libre-4.9-gnu/arch/arm64/kernel/entry.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/entry.S	2017-09-27 08:40:05.000000000 -0400
@@ -30,6 +30,7 @@
 #include <asm/irq.h>
 #include <asm/memory.h>
 #include <asm/thread_info.h>
+#include <asm/asm-uaccess.h>
 #include <asm/unistd.h>
 
 /*
@@ -369,12 +370,13 @@ el1_da:
 	/*
 	 * Data abort handling
 	 */
-	mrs	x0, far_el1
+	mrs	x3, far_el1
 	enable_dbg
 	// re-enable interrupts if they were enabled in the aborted context
 	tbnz	x23, #7, 1f			// PSR_I_BIT
 	enable_irq
 1:
+	clear_address_tag x0, x3
 	mov	x2, sp				// struct pt_regs
 	bl	do_mem_abort
 
@@ -535,7 +537,7 @@ el0_da:
 	// enable interrupts before calling the main handler
 	enable_dbg_and_irq
 	ct_user_exit
-	bic	x0, x26, #(0xff << 56)
+	clear_address_tag x0, x26
 	mov	x1, x25
 	mov	x2, sp
 	bl	do_mem_abort
@@ -624,7 +626,7 @@ el0_inv:
 	mov	x0, sp
 	mov	x1, #BAD_SYNC
 	mov	x2, x25
-	bl	bad_mode
+	bl	bad_el0_sync
 	b	ret_to_user
 ENDPROC(el0_sync)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/fpsimd.c linux-libre-4.9.52-gnu/arch/arm64/kernel/fpsimd.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/fpsimd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/fpsimd.c	2017-09-27 08:40:05.000000000 -0400
@@ -157,9 +157,11 @@ void fpsimd_thread_switch(struct task_st
 
 void fpsimd_flush_thread(void)
 {
+	preempt_disable();
 	memset(&current->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
 	fpsimd_flush_task_state(current);
 	set_thread_flag(TIF_FOREIGN_FPSTATE);
+	preempt_enable();
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/hw_breakpoint.c linux-libre-4.9.52-gnu/arch/arm64/kernel/hw_breakpoint.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/hw_breakpoint.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/hw_breakpoint.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,6 +36,7 @@
 #include <asm/traps.h>
 #include <asm/cputype.h>
 #include <asm/system_misc.h>
+#include <asm/uaccess.h>
 
 /* Breakpoint currently in use for each BRP. */
 static DEFINE_PER_CPU(struct perf_event *, bp_on_reg[ARM_MAX_BRP]);
@@ -696,7 +697,7 @@ static int watchpoint_handler(unsigned l
 
 		/* Check if the watchpoint value matches. */
 		val = read_wb_reg(AARCH64_DBG_REG_WVR, i);
-		if (val != (addr & ~alignment_mask))
+		if (val != (untagged_addr(addr) & ~alignment_mask))
 			goto unlock;
 
 		/* Possible match, check the byte address select to confirm. */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/kaslr.c linux-libre-4.9.52-gnu/arch/arm64/kernel/kaslr.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/kaslr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/kaslr.c	2017-09-27 08:40:05.000000000 -0400
@@ -131,11 +131,15 @@ u64 __init kaslr_early_init(u64 dt_phys,
 	/*
 	 * The kernel Image should not extend across a 1GB/32MB/512MB alignment
 	 * boundary (for 4KB/16KB/64KB granule kernels, respectively). If this
-	 * happens, increase the KASLR offset by the size of the kernel image.
+	 * happens, increase the KASLR offset by the size of the kernel image
+	 * rounded up by SWAPPER_BLOCK_SIZE.
 	 */
 	if ((((u64)_text + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT) !=
-	    (((u64)_end + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT))
-		offset = (offset + (u64)(_end - _text)) & mask;
+	    (((u64)_end + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT)) {
+		u64 kimg_sz = _end - _text;
+		offset = (offset + round_up(kimg_sz, SWAPPER_BLOCK_SIZE))
+				& mask;
+	}
 
 	if (IS_ENABLED(CONFIG_KASAN))
 		/*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/pci.c linux-libre-4.9.52-gnu/arch/arm64/kernel/pci.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -121,6 +121,7 @@ int pcibios_root_bridge_prepare(struct p
 static struct pci_config_window *
 pci_acpi_setup_ecam_mapping(struct acpi_pci_root *root)
 {
+	struct device *dev = &root->device->dev;
 	struct resource *bus_res = &root->secondary;
 	u16 seg = root->segment;
 	struct pci_config_window *cfg;
@@ -132,8 +133,7 @@ pci_acpi_setup_ecam_mapping(struct acpi_
 		root->mcfg_addr = pci_mcfg_lookup(seg, bus_res);
 
 	if (!root->mcfg_addr) {
-		dev_err(&root->device->dev, "%04x:%pR ECAM region not found\n",
-			seg, bus_res);
+		dev_err(dev, "%04x:%pR ECAM region not found\n", seg, bus_res);
 		return NULL;
 	}
 
@@ -141,11 +141,10 @@ pci_acpi_setup_ecam_mapping(struct acpi_
 	cfgres.start = root->mcfg_addr + bus_res->start * bsz;
 	cfgres.end = cfgres.start + resource_size(bus_res) * bsz - 1;
 	cfgres.flags = IORESOURCE_MEM;
-	cfg = pci_ecam_create(&root->device->dev, &cfgres, bus_res,
-			      &pci_generic_ecam_ops);
+	cfg = pci_ecam_create(dev, &cfgres, bus_res, &pci_generic_ecam_ops);
 	if (IS_ERR(cfg)) {
-		dev_err(&root->device->dev, "%04x:%pR error %ld mapping ECAM\n",
-			seg, bus_res, PTR_ERR(cfg));
+		dev_err(dev, "%04x:%pR error %ld mapping ECAM\n", seg, bus_res,
+			PTR_ERR(cfg));
 		return NULL;
 	}
 
@@ -159,33 +158,36 @@ static void pci_acpi_generic_release_inf
 
 	ri = container_of(ci, struct acpi_pci_generic_root_info, common);
 	pci_ecam_free(ri->cfg);
+	kfree(ci->ops);
 	kfree(ri);
 }
 
-static struct acpi_pci_root_ops acpi_pci_root_ops = {
-	.release_info = pci_acpi_generic_release_info,
-};
-
 /* Interface called from ACPI code to setup PCI host controller */
 struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 {
 	int node = acpi_get_node(root->device->handle);
 	struct acpi_pci_generic_root_info *ri;
 	struct pci_bus *bus, *child;
+	struct acpi_pci_root_ops *root_ops;
 
 	ri = kzalloc_node(sizeof(*ri), GFP_KERNEL, node);
 	if (!ri)
 		return NULL;
 
+	root_ops = kzalloc_node(sizeof(*root_ops), GFP_KERNEL, node);
+	if (!root_ops)
+		return NULL;
+
 	ri->cfg = pci_acpi_setup_ecam_mapping(root);
 	if (!ri->cfg) {
 		kfree(ri);
+		kfree(root_ops);
 		return NULL;
 	}
 
-	acpi_pci_root_ops.pci_ops = &ri->cfg->ops->pci_ops;
-	bus = acpi_pci_root_create(root, &acpi_pci_root_ops, &ri->common,
-				   ri->cfg);
+	root_ops->release_info = pci_acpi_generic_release_info;
+	root_ops->pci_ops = &ri->cfg->ops->pci_ops;
+	bus = acpi_pci_root_create(root, root_ops, &ri->common, ri->cfg);
 	if (!bus)
 		return NULL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/arm64/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -550,6 +550,8 @@ static int hw_break_set(struct task_stru
 	/* (address, ctrl) registers */
 	limit = regset->n * regset->size;
 	while (count && offset < limit) {
+		if (count < PTRACE_HBP_ADDR_SZ)
+			return -EINVAL;
 		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &addr,
 					 offset, offset + PTRACE_HBP_ADDR_SZ);
 		if (ret)
@@ -559,6 +561,8 @@ static int hw_break_set(struct task_stru
 			return ret;
 		offset += PTRACE_HBP_ADDR_SZ;
 
+		if (!count)
+			break;
 		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &ctrl,
 					 offset, offset + PTRACE_HBP_CTRL_SZ);
 		if (ret)
@@ -595,7 +599,7 @@ static int gpr_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct user_pt_regs newregs;
+	struct user_pt_regs newregs = task_pt_regs(target)->user_regs;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &newregs, 0, -1);
 	if (ret)
@@ -625,7 +629,8 @@ static int fpr_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct user_fpsimd_state newstate;
+	struct user_fpsimd_state newstate =
+		target->thread.fpsimd_state.user_fpsimd;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &newstate, 0, -1);
 	if (ret)
@@ -649,7 +654,7 @@ static int tls_set(struct task_struct *t
 		   const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	unsigned long tls;
+	unsigned long tls = target->thread.tp_value;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
 	if (ret)
@@ -675,7 +680,8 @@ static int system_call_set(struct task_s
 			   unsigned int pos, unsigned int count,
 			   const void *kbuf, const void __user *ubuf)
 {
-	int syscallno, ret;
+	int syscallno = task_pt_regs(target)->syscallno;
+	int ret;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &syscallno, 0, -1);
 	if (ret)
@@ -947,7 +953,7 @@ static int compat_tls_set(struct task_st
 			  const void __user *ubuf)
 {
 	int ret;
-	compat_ulong_t tls;
+	compat_ulong_t tls = target->thread.tp_value;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/smccc-call.S linux-libre-4.9.52-gnu/arch/arm64/kernel/smccc-call.S
--- linux-libre-4.9-gnu/arch/arm64/kernel/smccc-call.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/smccc-call.S	2017-09-27 08:40:05.000000000 -0400
@@ -12,6 +12,7 @@
  *
  */
 #include <linux/linkage.h>
+#include <linux/arm-smccc.h>
 #include <asm/asm-offsets.h>
 
 	.macro SMCCC instr
@@ -20,24 +21,32 @@
 	ldr	x4, [sp]
 	stp	x0, x1, [x4, #ARM_SMCCC_RES_X0_OFFS]
 	stp	x2, x3, [x4, #ARM_SMCCC_RES_X2_OFFS]
-	ret
+	ldr	x4, [sp, #8]
+	cbz	x4, 1f /* no quirk structure */
+	ldr	x9, [x4, #ARM_SMCCC_QUIRK_ID_OFFS]
+	cmp	x9, #ARM_SMCCC_QUIRK_QCOM_A6
+	b.ne	1f
+	str	x6, [x4, ARM_SMCCC_QUIRK_STATE_OFFS]
+1:	ret
 	.cfi_endproc
 	.endm
 
 /*
  * void arm_smccc_smc(unsigned long a0, unsigned long a1, unsigned long a2,
  *		  unsigned long a3, unsigned long a4, unsigned long a5,
- *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res)
+ *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
+ *		  struct arm_smccc_quirk *quirk)
  */
-ENTRY(arm_smccc_smc)
+ENTRY(__arm_smccc_smc)
 	SMCCC	smc
-ENDPROC(arm_smccc_smc)
+ENDPROC(__arm_smccc_smc)
 
 /*
  * void arm_smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2,
  *		  unsigned long a3, unsigned long a4, unsigned long a5,
- *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res)
+ *		  unsigned long a6, unsigned long a7, struct arm_smccc_res *res,
+ *		  struct arm_smccc_quirk *quirk)
  */
-ENTRY(arm_smccc_hvc)
+ENTRY(__arm_smccc_hvc)
 	SMCCC	hvc
-ENDPROC(arm_smccc_hvc)
+ENDPROC(__arm_smccc_hvc)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/smp.c linux-libre-4.9.52-gnu/arch/arm64/kernel/smp.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/smp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/smp.c	2017-09-27 08:40:05.000000000 -0400
@@ -934,7 +934,7 @@ static bool have_cpu_die(void)
 #ifdef CONFIG_HOTPLUG_CPU
 	int any_cpu = raw_smp_processor_id();
 
-	if (cpu_ops[any_cpu]->cpu_die)
+	if (cpu_ops[any_cpu] && cpu_ops[any_cpu]->cpu_die)
 		return true;
 #endif
 	return false;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/traps.c linux-libre-4.9.52-gnu/arch/arm64/kernel/traps.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/traps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/traps.c	2017-09-27 08:40:05.000000000 -0400
@@ -435,7 +435,7 @@ int cpu_enable_cache_maint_trap(void *__
 }
 
 #define __user_cache_maint(insn, address, res)			\
-	if (untagged_addr(address) >= user_addr_max())		\
+	if (address >= user_addr_max())				\
 		res = -EFAULT;					\
 	else							\
 		asm volatile (					\
@@ -458,7 +458,7 @@ static void user_cache_maint_handler(uns
 	int crm = (esr & ESR_ELx_SYS64_ISS_CRM_MASK) >> ESR_ELx_SYS64_ISS_CRM_SHIFT;
 	int ret = 0;
 
-	address = (rt == 31) ? 0 : regs->regs[rt];
+	address = (rt == 31) ? 0 : untagged_addr(regs->regs[rt]);
 
 	switch (crm) {
 	case ESR_ELx_SYS64_ISS_CRM_DC_CVAU:	/* DC CVAU, gets promoted */
@@ -596,17 +596,34 @@ const char *esr_get_class_string(u32 esr
 }
 
 /*
- * bad_mode handles the impossible case in the exception vector.
+ * bad_mode handles the impossible case in the exception vector. This is always
+ * fatal.
  */
 asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr)
 {
-	siginfo_t info;
-	void __user *pc = (void __user *)instruction_pointer(regs);
 	console_verbose();
 
 	pr_crit("Bad mode in %s handler detected on CPU%d, code 0x%08x -- %s\n",
 		handler[reason], smp_processor_id(), esr,
 		esr_get_class_string(esr));
+
+	die("Oops - bad mode", regs, 0);
+	local_irq_disable();
+	panic("bad mode");
+}
+
+/*
+ * bad_el0_sync handles unexpected, but potentially recoverable synchronous
+ * exceptions taken from EL0. Unlike bad_mode, this returns.
+ */
+asmlinkage void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr)
+{
+	siginfo_t info;
+	void __user *pc = (void __user *)instruction_pointer(regs);
+	console_verbose();
+
+	pr_crit("Bad EL0 synchronous exception detected on CPU%d, code 0x%08x -- %s\n",
+		smp_processor_id(), esr, esr_get_class_string(esr));
 	__show_regs(regs);
 
 	info.si_signo = SIGILL;
@@ -614,7 +631,10 @@ asmlinkage void bad_mode(struct pt_regs
 	info.si_code  = ILL_ILLOPC;
 	info.si_addr  = pc;
 
-	arm64_notify_die("Oops - bad mode", regs, &info, 0);
+	current->thread.fault_address = 0;
+	current->thread.fault_code = 0;
+
+	force_sig_info(info.si_signo, &info, current);
 }
 
 void __pte_error(const char *file, int line, unsigned long val)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/vdso/gettimeofday.S linux-libre-4.9.52-gnu/arch/arm64/kernel/vdso/gettimeofday.S
--- linux-libre-4.9-gnu/arch/arm64/kernel/vdso/gettimeofday.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/vdso/gettimeofday.S	2017-09-27 08:40:05.000000000 -0400
@@ -256,7 +256,6 @@ monotonic_raw:
 	seqcnt_check fail=monotonic_raw
 
 	/* All computations are done with left-shifted nsecs. */
-	lsl	x14, x14, x12
 	get_nsec_per_sec res=x9
 	lsl	x9, x9, x12
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kernel/vdso.c linux-libre-4.9.52-gnu/arch/arm64/kernel/vdso.c
--- linux-libre-4.9-gnu/arch/arm64/kernel/vdso.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kernel/vdso.c	2017-09-27 08:40:05.000000000 -0400
@@ -217,10 +217,11 @@ void update_vsyscall(struct timekeeper *
 		/* tkr_mono.cycle_last == tkr_raw.cycle_last */
 		vdso_data->cs_cycle_last	= tk->tkr_mono.cycle_last;
 		vdso_data->raw_time_sec		= tk->raw_time.tv_sec;
-		vdso_data->raw_time_nsec	= tk->raw_time.tv_nsec;
+		vdso_data->raw_time_nsec	= (tk->raw_time.tv_nsec <<
+						   tk->tkr_raw.shift) +
+						  tk->tkr_raw.xtime_nsec;
 		vdso_data->xtime_clock_sec	= tk->xtime_sec;
 		vdso_data->xtime_clock_nsec	= tk->tkr_mono.xtime_nsec;
-		/* tkr_raw.xtime_nsec == 0 */
 		vdso_data->cs_mono_mult		= tk->tkr_mono.mult;
 		vdso_data->cs_raw_mult		= tk->tkr_raw.mult;
 		/* tkr_mono.shift == tkr_raw.shift */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kvm/hyp/Makefile linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp/Makefile
--- linux-libre-4.9-gnu/arch/arm64/kvm/hyp/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -2,6 +2,8 @@
 # Makefile for Kernel-based Virtual Machine module, HYP part
 #
 
+ccflags-y += -fno-stack-protector
+
 KVM=../../../../virt/kvm
 
 obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kvm/hyp/switch.c linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp/switch.c
--- linux-libre-4.9-gnu/arch/arm64/kvm/hyp/switch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp/switch.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,7 +85,13 @@ static void __hyp_text __activate_traps(
 	write_sysreg(val, hcr_el2);
 	/* Trap on AArch32 cp15 c15 accesses (EL1 or EL0) */
 	write_sysreg(1 << 15, hstr_el2);
-	/* Make sure we trap PMU access from EL0 to EL2 */
+	/*
+	 * Make sure we trap PMU access from EL0 to EL2. Also sanitize
+	 * PMSELR_EL0 to make sure it never contains the cycle
+	 * counter, which could make a PMXEVCNTR_EL0 access UNDEF at
+	 * EL1 instead of being trapped to EL2.
+	 */
+	write_sysreg(0, pmselr_el0);
 	write_sysreg(ARMV8_PMU_USERENR_MASK, pmuserenr_el0);
 	write_sysreg(vcpu->arch.mdcr_el2, mdcr_el2);
 	__activate_traps_arch()();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kvm/hyp/tlb.c linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp/tlb.c
--- linux-libre-4.9-gnu/arch/arm64/kvm/hyp/tlb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp/tlb.c	2017-09-27 08:40:05.000000000 -0400
@@ -17,14 +17,62 @@
 
 #include <asm/kvm_hyp.h>
 
+static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm)
+{
+	u64 val;
+
+	/*
+	 * With VHE enabled, we have HCR_EL2.{E2H,TGE} = {1,1}, and
+	 * most TLB operations target EL2/EL0. In order to affect the
+	 * guest TLBs (EL1/EL0), we need to change one of these two
+	 * bits. Changing E2H is impossible (goodbye TTBR1_EL2), so
+	 * let's flip TGE before executing the TLB operation.
+	 */
+	write_sysreg(kvm->arch.vttbr, vttbr_el2);
+	val = read_sysreg(hcr_el2);
+	val &= ~HCR_TGE;
+	write_sysreg(val, hcr_el2);
+	isb();
+}
+
+static void __hyp_text __tlb_switch_to_guest_nvhe(struct kvm *kvm)
+{
+	write_sysreg(kvm->arch.vttbr, vttbr_el2);
+	isb();
+}
+
+static hyp_alternate_select(__tlb_switch_to_guest,
+			    __tlb_switch_to_guest_nvhe,
+			    __tlb_switch_to_guest_vhe,
+			    ARM64_HAS_VIRT_HOST_EXTN);
+
+static void __hyp_text __tlb_switch_to_host_vhe(struct kvm *kvm)
+{
+	/*
+	 * We're done with the TLB operation, let's restore the host's
+	 * view of HCR_EL2.
+	 */
+	write_sysreg(0, vttbr_el2);
+	write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2);
+}
+
+static void __hyp_text __tlb_switch_to_host_nvhe(struct kvm *kvm)
+{
+	write_sysreg(0, vttbr_el2);
+}
+
+static hyp_alternate_select(__tlb_switch_to_host,
+			    __tlb_switch_to_host_nvhe,
+			    __tlb_switch_to_host_vhe,
+			    ARM64_HAS_VIRT_HOST_EXTN);
+
 void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
 {
 	dsb(ishst);
 
 	/* Switch to requested VMID */
 	kvm = kern_hyp_va(kvm);
-	write_sysreg(kvm->arch.vttbr, vttbr_el2);
-	isb();
+	__tlb_switch_to_guest()(kvm);
 
 	/*
 	 * We could do so much better if we had the VA as well.
@@ -45,7 +93,7 @@ void __hyp_text __kvm_tlb_flush_vmid_ipa
 	dsb(ish);
 	isb();
 
-	write_sysreg(0, vttbr_el2);
+	__tlb_switch_to_host()(kvm);
 }
 
 void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
@@ -54,14 +102,13 @@ void __hyp_text __kvm_tlb_flush_vmid(str
 
 	/* Switch to requested VMID */
 	kvm = kern_hyp_va(kvm);
-	write_sysreg(kvm->arch.vttbr, vttbr_el2);
-	isb();
+	__tlb_switch_to_guest()(kvm);
 
 	asm volatile("tlbi vmalls12e1is" : : );
 	dsb(ish);
 	isb();
 
-	write_sysreg(0, vttbr_el2);
+	__tlb_switch_to_host()(kvm);
 }
 
 void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
@@ -69,14 +116,13 @@ void __hyp_text __kvm_tlb_flush_local_vm
 	struct kvm *kvm = kern_hyp_va(kern_hyp_va(vcpu)->kvm);
 
 	/* Switch to requested VMID */
-	write_sysreg(kvm->arch.vttbr, vttbr_el2);
-	isb();
+	__tlb_switch_to_guest()(kvm);
 
 	asm volatile("tlbi vmalle1" : : );
 	dsb(nsh);
 	isb();
 
-	write_sysreg(0, vttbr_el2);
+	__tlb_switch_to_host()(kvm);
 }
 
 void __hyp_text __kvm_flush_vm_context(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kvm/hyp-init.S linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp-init.S
--- linux-libre-4.9-gnu/arch/arm64/kvm/hyp-init.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kvm/hyp-init.S	2017-09-27 08:40:05.000000000 -0400
@@ -102,10 +102,13 @@ __do_hyp_init:
 	tlbi	alle2
 	dsb	sy
 
-	mrs	x4, sctlr_el2
-	and	x4, x4, #SCTLR_ELx_EE	// preserve endianness of EL2
-	ldr	x5, =SCTLR_ELx_FLAGS
-	orr	x4, x4, x5
+	/*
+	 * Preserve all the RES1 bits while setting the default flags,
+	 * as well as the EE bit on BE. Drop the A flag since the compiler
+	 * is allowed to generate unaligned accesses.
+	 */
+	ldr	x4, =(SCTLR_EL2_RES1 | (SCTLR_ELx_FLAGS & ~SCTLR_ELx_A))
+CPU_BE(	orr	x4, x4, #SCTLR_ELx_EE)
 	msr	sctlr_el2, x4
 	isb
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/kvm/sys_regs.c linux-libre-4.9.52-gnu/arch/arm64/kvm/sys_regs.c
--- linux-libre-4.9-gnu/arch/arm64/kvm/sys_regs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/kvm/sys_regs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1573,8 +1573,8 @@ static int kvm_handle_cp_64(struct kvm_v
 {
 	struct sys_reg_params params;
 	u32 hsr = kvm_vcpu_get_hsr(vcpu);
-	int Rt = (hsr >> 5) & 0xf;
-	int Rt2 = (hsr >> 10) & 0xf;
+	int Rt = kvm_vcpu_sys_get_rt(vcpu);
+	int Rt2 = (hsr >> 10) & 0x1f;
 
 	params.is_aarch32 = true;
 	params.is_32bit = false;
@@ -1625,7 +1625,7 @@ static int kvm_handle_cp_32(struct kvm_v
 {
 	struct sys_reg_params params;
 	u32 hsr = kvm_vcpu_get_hsr(vcpu);
-	int Rt  = (hsr >> 5) & 0xf;
+	int Rt  = kvm_vcpu_sys_get_rt(vcpu);
 
 	params.is_aarch32 = true;
 	params.is_32bit = true;
@@ -1740,7 +1740,7 @@ int kvm_handle_sys_reg(struct kvm_vcpu *
 {
 	struct sys_reg_params params;
 	unsigned long esr = kvm_vcpu_get_hsr(vcpu);
-	int Rt = (esr >> 5) & 0x1f;
+	int Rt = kvm_vcpu_sys_get_rt(vcpu);
 	int ret;
 
 	trace_kvm_handle_sys_reg(esr);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/mm/dma-mapping.c linux-libre-4.9.52-gnu/arch/arm64/mm/dma-mapping.c
--- linux-libre-4.9-gnu/arch/arm64/mm/dma-mapping.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/mm/dma-mapping.c	2017-09-27 08:40:05.000000000 -0400
@@ -352,6 +352,13 @@ static int __swiotlb_dma_supported(struc
 	return 1;
 }
 
+static int __swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t addr)
+{
+	if (swiotlb)
+		return swiotlb_dma_mapping_error(hwdev, addr);
+	return 0;
+}
+
 static struct dma_map_ops swiotlb_dma_ops = {
 	.alloc = __dma_alloc,
 	.free = __dma_free,
@@ -366,7 +373,7 @@ static struct dma_map_ops swiotlb_dma_op
 	.sync_sg_for_cpu = __swiotlb_sync_sg_for_cpu,
 	.sync_sg_for_device = __swiotlb_sync_sg_for_device,
 	.dma_supported = __swiotlb_dma_supported,
-	.mapping_error = swiotlb_dma_mapping_error,
+	.mapping_error = __swiotlb_dma_mapping_error,
 };
 
 static int __init atomic_pool_init(void)
@@ -524,7 +531,8 @@ EXPORT_SYMBOL(dummy_dma_ops);
 
 static int __init arm64_dma_init(void)
 {
-	if (swiotlb_force || max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT))
+	if (swiotlb_force == SWIOTLB_FORCE ||
+	    max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT))
 		swiotlb = 1;
 
 	return atomic_pool_init();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/mm/fault.c linux-libre-4.9.52-gnu/arch/arm64/mm/fault.c
--- linux-libre-4.9-gnu/arch/arm64/mm/fault.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/mm/fault.c	2017-09-27 08:40:05.000000000 -0400
@@ -41,7 +41,20 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
-static const char *fault_name(unsigned int esr);
+struct fault_info {
+	int	(*fn)(unsigned long addr, unsigned int esr,
+		      struct pt_regs *regs);
+	int	sig;
+	int	code;
+	const char *name;
+};
+
+static const struct fault_info fault_info[];
+
+static inline const struct fault_info *esr_to_fault_info(unsigned int esr)
+{
+	return fault_info + (esr & 63);
+}
 
 #ifdef CONFIG_KPROBES
 static inline int notify_page_fault(struct pt_regs *regs, unsigned int esr)
@@ -88,21 +101,21 @@ void show_pte(struct mm_struct *mm, unsi
 			break;
 
 		pud = pud_offset(pgd, addr);
-		printk(", *pud=%016llx", pud_val(*pud));
+		pr_cont(", *pud=%016llx", pud_val(*pud));
 		if (pud_none(*pud) || pud_bad(*pud))
 			break;
 
 		pmd = pmd_offset(pud, addr);
-		printk(", *pmd=%016llx", pmd_val(*pmd));
+		pr_cont(", *pmd=%016llx", pmd_val(*pmd));
 		if (pmd_none(*pmd) || pmd_bad(*pmd))
 			break;
 
 		pte = pte_offset_map(pmd, addr);
-		printk(", *pte=%016llx", pte_val(*pte));
+		pr_cont(", *pte=%016llx", pte_val(*pte));
 		pte_unmap(pte);
 	} while(0);
 
-	printk("\n");
+	pr_cont("\n");
 }
 
 #ifdef CONFIG_ARM64_HW_AFDBM
@@ -196,10 +209,12 @@ static void __do_user_fault(struct task_
 			    struct pt_regs *regs)
 {
 	struct siginfo si;
+	const struct fault_info *inf;
 
 	if (unhandled_signal(tsk, sig) && show_unhandled_signals_ratelimited()) {
+		inf = esr_to_fault_info(esr);
 		pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n",
-			tsk->comm, task_pid_nr(tsk), fault_name(esr), sig,
+			tsk->comm, task_pid_nr(tsk), inf->name, sig,
 			addr, esr);
 		show_pte(tsk->mm, addr);
 		show_regs(regs);
@@ -218,14 +233,16 @@ static void do_bad_area(unsigned long ad
 {
 	struct task_struct *tsk = current;
 	struct mm_struct *mm = tsk->active_mm;
+	const struct fault_info *inf;
 
 	/*
 	 * If we are in kernel mode at this point, we have no context to
 	 * handle this fault with.
 	 */
-	if (user_mode(regs))
-		__do_user_fault(tsk, addr, esr, SIGSEGV, SEGV_MAPERR, regs);
-	else
+	if (user_mode(regs)) {
+		inf = esr_to_fault_info(esr);
+		__do_user_fault(tsk, addr, esr, inf->sig, inf->code, regs);
+	} else
 		__do_kernel_fault(mm, addr, esr, regs);
 }
 
@@ -356,8 +373,11 @@ retry:
 	 * signal first. We do not need to release the mmap_sem because it
 	 * would already be released in __lock_page_or_retry in mm/filemap.c.
 	 */
-	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) {
+		if (!user_mode(regs))
+			goto no_context;
 		return 0;
+	}
 
 	/*
 	 * Major/minor page fault accounting is only done on the initial
@@ -481,12 +501,7 @@ static int do_bad(unsigned long addr, un
 	return 1;
 }
 
-static const struct fault_info {
-	int	(*fn)(unsigned long addr, unsigned int esr, struct pt_regs *regs);
-	int	sig;
-	int	code;
-	const char *name;
-} fault_info[] = {
+static const struct fault_info fault_info[] = {
 	{ do_bad,		SIGBUS,  0,		"ttbr address size fault"	},
 	{ do_bad,		SIGBUS,  0,		"level 1 address size fault"	},
 	{ do_bad,		SIGBUS,  0,		"level 2 address size fault"	},
@@ -553,19 +568,13 @@ static const struct fault_info {
 	{ do_bad,		SIGBUS,  0,		"unknown 63"			},
 };
 
-static const char *fault_name(unsigned int esr)
-{
-	const struct fault_info *inf = fault_info + (esr & 63);
-	return inf->name;
-}
-
 /*
  * Dispatch a data abort to the relevant handler.
  */
 asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,
 					 struct pt_regs *regs)
 {
-	const struct fault_info *inf = fault_info + (esr & 63);
+	const struct fault_info *inf = esr_to_fault_info(esr);
 	struct siginfo info;
 
 	if (!inf->fn(addr, esr, regs))
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/mm/hugetlbpage.c linux-libre-4.9.52-gnu/arch/arm64/mm/hugetlbpage.c
--- linux-libre-4.9-gnu/arch/arm64/mm/hugetlbpage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/mm/hugetlbpage.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,20 +51,8 @@ static int find_num_contig(struct mm_str
 	*pgsize = PAGE_SIZE;
 	if (!pte_cont(pte))
 		return 1;
-	if (!pgd_present(*pgd)) {
-		VM_BUG_ON(!pgd_present(*pgd));
-		return 1;
-	}
 	pud = pud_offset(pgd, addr);
-	if (!pud_present(*pud)) {
-		VM_BUG_ON(!pud_present(*pud));
-		return 1;
-	}
 	pmd = pmd_offset(pud, addr);
-	if (!pmd_present(*pmd)) {
-		VM_BUG_ON(!pmd_present(*pmd));
-		return 1;
-	}
 	if ((pte_t *)pmd == ptep) {
 		*pgsize = PMD_SIZE;
 		return CONT_PMDS;
@@ -212,7 +200,7 @@ pte_t huge_ptep_get_and_clear(struct mm_
 		ncontig = find_num_contig(mm, addr, cpte, *cpte, &pgsize);
 		/* save the 1st pte to return */
 		pte = ptep_get_and_clear(mm, addr, cpte);
-		for (i = 1; i < ncontig; ++i) {
+		for (i = 1, addr += pgsize; i < ncontig; ++i, addr += pgsize) {
 			/*
 			 * If HW_AFDBM is enabled, then the HW could
 			 * turn on the dirty bit for any of the page
@@ -250,8 +238,8 @@ int huge_ptep_set_access_flags(struct vm
 		pfn = pte_pfn(*cpte);
 		ncontig = find_num_contig(vma->vm_mm, addr, cpte,
 					  *cpte, &pgsize);
-		for (i = 0; i < ncontig; ++i, ++cpte) {
-			changed = ptep_set_access_flags(vma, addr, cpte,
+		for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize) {
+			changed |= ptep_set_access_flags(vma, addr, cpte,
 							pfn_pte(pfn,
 								hugeprot),
 							dirty);
@@ -273,7 +261,7 @@ void huge_ptep_set_wrprotect(struct mm_s
 
 		cpte = huge_pte_offset(mm, addr);
 		ncontig = find_num_contig(mm, addr, cpte, *cpte, &pgsize);
-		for (i = 0; i < ncontig; ++i, ++cpte)
+		for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize)
 			ptep_set_wrprotect(mm, addr, cpte);
 	} else {
 		ptep_set_wrprotect(mm, addr, ptep);
@@ -291,7 +279,7 @@ void huge_ptep_clear_flush(struct vm_are
 		cpte = huge_pte_offset(vma->vm_mm, addr);
 		ncontig = find_num_contig(vma->vm_mm, addr, cpte,
 					  *cpte, &pgsize);
-		for (i = 0; i < ncontig; ++i, ++cpte)
+		for (i = 0; i < ncontig; ++i, ++cpte, addr += pgsize)
 			ptep_clear_flush(vma, addr, cpte);
 	} else {
 		ptep_clear_flush(vma, addr, ptep);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/mm/init.c linux-libre-4.9.52-gnu/arch/arm64/mm/init.c
--- linux-libre-4.9-gnu/arch/arm64/mm/init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/mm/init.c	2017-09-27 08:40:05.000000000 -0400
@@ -401,8 +401,11 @@ static void __init free_unused_memmap(vo
  */
 void __init mem_init(void)
 {
-	if (swiotlb_force || max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT))
+	if (swiotlb_force == SWIOTLB_FORCE ||
+	    max_pfn > (arm64_dma_phys_limit >> PAGE_SHIFT))
 		swiotlb_init(1);
+	else
+		swiotlb_force = SWIOTLB_NO_FORCE;
 
 	set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/arm64/net/bpf_jit_comp.c linux-libre-4.9.52-gnu/arch/arm64/net/bpf_jit_comp.c
--- linux-libre-4.9-gnu/arch/arm64/net/bpf_jit_comp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/arm64/net/bpf_jit_comp.c	2017-09-27 08:40:05.000000000 -0400
@@ -252,8 +252,9 @@ static int emit_bpf_tail_call(struct jit
 	 */
 	off = offsetof(struct bpf_array, ptrs);
 	emit_a64_mov_i64(tmp, off, ctx);
-	emit(A64_LDR64(tmp, r2, tmp), ctx);
-	emit(A64_LDR64(prg, tmp, r3), ctx);
+	emit(A64_ADD(1, tmp, r2, tmp), ctx);
+	emit(A64_LSL(1, prg, r3, 3), ctx);
+	emit(A64_LDR64(prg, tmp, prg), ctx);
 	emit(A64_CBZ(1, prg, jmp_offset), ctx);
 
 	/* goto *(prog->bpf_func + prologue_size); */
@@ -779,14 +780,14 @@ static int build_body(struct jit_ctx *ct
 		int ret;
 
 		ret = build_insn(insn, ctx);
-
-		if (ctx->image == NULL)
-			ctx->offset[i] = ctx->idx;
-
 		if (ret > 0) {
 			i++;
+			if (ctx->image == NULL)
+				ctx->offset[i] = ctx->idx;
 			continue;
 		}
+		if (ctx->image == NULL)
+			ctx->offset[i] = ctx->idx;
 		if (ret)
 			return ret;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/blackfin/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/blackfin/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/blackfin/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/blackfin/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -270,7 +270,7 @@ long arch_ptrace(struct task_struct *chi
 			switch (bfin_mem_access_type(addr, to_copy)) {
 			case BFIN_MEM_ACCESS_CORE:
 			case BFIN_MEM_ACCESS_CORE_ONLY:
-				copied = access_process_vm(child, addr, &tmp,
+				copied = ptrace_access_vm(child, addr, &tmp,
 							   to_copy, FOLL_FORCE);
 				if (copied)
 					break;
@@ -323,7 +323,7 @@ long arch_ptrace(struct task_struct *chi
 			switch (bfin_mem_access_type(addr, to_copy)) {
 			case BFIN_MEM_ACCESS_CORE:
 			case BFIN_MEM_ACCESS_CORE_ONLY:
-				copied = access_process_vm(child, addr, &data,
+				copied = ptrace_access_vm(child, addr, &data,
 				                           to_copy,
 							   FOLL_FORCE | FOLL_WRITE);
 				break;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/c6x/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/c6x/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/c6x/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/c6x/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -69,46 +69,6 @@ static int gpr_get(struct task_struct *t
 				   0, sizeof(*regs));
 }
 
-static int gpr_set(struct task_struct *target,
-		   const struct user_regset *regset,
-		   unsigned int pos, unsigned int count,
-		   const void *kbuf, const void __user *ubuf)
-{
-	int ret;
-	struct pt_regs *regs = task_pt_regs(target);
-
-	/* Don't copyin TSR or CSR */
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &regs,
-				 0, PT_TSR * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-					PT_TSR * sizeof(long),
-					(PT_TSR + 1) * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &regs,
-				 (PT_TSR + 1) * sizeof(long),
-				 PT_CSR * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
-					PT_CSR * sizeof(long),
-					(PT_CSR + 1) * sizeof(long));
-	if (ret)
-		return ret;
-
-	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &regs,
-				 (PT_CSR + 1) * sizeof(long), -1);
-	return ret;
-}
-
 enum c6x_regset {
 	REGSET_GPR,
 };
@@ -120,7 +80,6 @@ static const struct user_regset c6x_regs
 		.size = sizeof(u32),
 		.align = sizeof(u32),
 		.get = gpr_get,
-		.set = gpr_set
 	},
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/cris/arch-v32/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/cris/arch-v32/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/cris/arch-v32/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/cris/arch-v32/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -147,7 +147,7 @@ long arch_ptrace(struct task_struct *chi
 				/* The trampoline page is globally mapped, no page table to traverse.*/
 				tmp = *(unsigned long*)addr;
 			} else {
-				copied = access_process_vm(child, addr, &tmp, sizeof(tmp), FOLL_FORCE);
+				copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp), FOLL_FORCE);
 
 				if (copied != sizeof(tmp))
 					break;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/cris/boot/rescue/Makefile linux-libre-4.9.52-gnu/arch/cris/boot/rescue/Makefile
--- linux-libre-4.9-gnu/arch/cris/boot/rescue/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/cris/boot/rescue/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -10,6 +10,9 @@
 
 asflags-y += $(LINUXINCLUDE)
 ccflags-y += -O2 $(LINUXINCLUDE)
+
+ifdef CONFIG_ETRAX_AXISFLASHMAP
+
 arch-$(CONFIG_ETRAX_ARCH_V10) = v10
 arch-$(CONFIG_ETRAX_ARCH_V32) = v32
 
@@ -28,6 +31,11 @@ $(obj)/rescue.bin: $(obj)/rescue.o FORCE
 	$(call if_changed,objcopy)
 	cp -p $(obj)/rescue.bin $(objtree)
 
+else
+$(obj)/rescue.bin:
+
+endif
+
 $(obj)/testrescue.bin: $(obj)/testrescue.o
 	$(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/testrescue.o tr.bin
 # Pad it to 784 bytes
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/frv/include/asm/atomic.h linux-libre-4.9.52-gnu/arch/frv/include/asm/atomic.h
--- linux-libre-4.9-gnu/arch/frv/include/asm/atomic.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/frv/include/asm/atomic.h	2017-09-27 08:40:05.000000000 -0400
@@ -139,7 +139,7 @@ static inline void atomic64_dec(atomic64
 #define atomic64_sub_and_test(i,v)	(atomic64_sub_return((i), (v)) == 0)
 #define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
 #define atomic64_inc_and_test(v)	(atomic64_inc_return((v)) == 0)
-
+#define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
 
 #define atomic_cmpxchg(v, old, new)	(cmpxchg(&(v)->counter, old, new))
 #define atomic_xchg(v, new)		(xchg(&(v)->counter, new))
@@ -161,6 +161,39 @@ static __inline__ int __atomic_add_unles
 	return c;
 }
 
+static inline int atomic64_add_unless(atomic64_t *v, long long i, long long u)
+{
+	long long c, old;
+
+	c = atomic64_read(v);
+	for (;;) {
+		if (unlikely(c == u))
+			break;
+		old = atomic64_cmpxchg(v, c, c + i);
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+	return c != u;
+}
+
+static inline long long atomic64_dec_if_positive(atomic64_t *v)
+{
+	long long c, old, dec;
+
+	c = atomic64_read(v);
+	for (;;) {
+		dec = c - 1;
+		if (unlikely(dec < 0))
+			break;
+		old = atomic64_cmpxchg((v), c, dec);
+		if (likely(old == c))
+			break;
+		c = old;
+	}
+		return dec;
+}
+
 #define ATOMIC_OP(op)							\
 static inline int atomic_fetch_##op(int i, atomic_t *v)			\
 {									\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/frv/mm/elf-fdpic.c linux-libre-4.9.52-gnu/arch/frv/mm/elf-fdpic.c
--- linux-libre-4.9-gnu/arch/frv/mm/elf-fdpic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/frv/mm/elf-fdpic.c	2017-09-27 08:40:05.000000000 -0400
@@ -74,7 +74,7 @@ unsigned long arch_get_unmapped_area(str
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(current->mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			goto success;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/h8300/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/h8300/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/h8300/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/h8300/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -95,7 +95,8 @@ static int regs_get(struct task_struct *
 	long *reg = (long *)&regs;
 
 	/* build user regs in buffer */
-	for (r = 0; r < ARRAY_SIZE(register_offset); r++)
+	BUILD_BUG_ON(sizeof(regs) % sizeof(long) != 0);
+	for (r = 0; r < sizeof(regs) / sizeof(long); r++)
 		*reg++ = h8300_get_reg(target, r);
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@@ -113,7 +114,8 @@ static int regs_set(struct task_struct *
 	long *reg;
 
 	/* build user regs in buffer */
-	for (reg = (long *)&regs, r = 0; r < ARRAY_SIZE(register_offset); r++)
+	BUILD_BUG_ON(sizeof(regs) % sizeof(long) != 0);
+	for (reg = (long *)&regs, r = 0; r < sizeof(regs) / sizeof(long); r++)
 		*reg++ = h8300_get_reg(target, r);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@@ -122,7 +124,7 @@ static int regs_set(struct task_struct *
 		return ret;
 
 	/* write back to pt_regs */
-	for (reg = (long *)&regs, r = 0; r < ARRAY_SIZE(register_offset); r++)
+	for (reg = (long *)&regs, r = 0; r < sizeof(regs) / sizeof(long); r++)
 		h8300_put_reg(target, r, *reg++);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/ia64/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/ia64/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/ia64/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/ia64/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -1159,7 +1159,7 @@ arch_ptrace (struct task_struct *child,
 	case PTRACE_PEEKTEXT:
 	case PTRACE_PEEKDATA:
 		/* read word at location addr */
-		if (access_process_vm(child, addr, &data, sizeof(data),
+		if (ptrace_access_vm(child, addr, &data, sizeof(data),
 				FOLL_FORCE)
 		    != sizeof(data))
 			return -EIO;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/metag/include/asm/uaccess.h linux-libre-4.9.52-gnu/arch/metag/include/asm/uaccess.h
--- linux-libre-4.9-gnu/arch/metag/include/asm/uaccess.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/metag/include/asm/uaccess.h	2017-09-27 08:40:05.000000000 -0400
@@ -28,24 +28,32 @@
 
 #define segment_eq(a, b)	((a).seg == (b).seg)
 
-#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
-/*
- * Explicitly allow NULL pointers here. Parts of the kernel such
- * as readv/writev use access_ok to validate pointers, but want
- * to allow NULL pointers for various reasons. NULL pointers are
- * safe to allow through because the first page is not mappable on
- * Meta.
- *
- * We also wish to avoid letting user code access the system area
- * and the kernel half of the address space.
- */
-#define __user_bad(addr, size) (((addr) > 0 && (addr) < META_MEMORY_BASE) || \
-				((addr) > PAGE_OFFSET &&		\
-				 (addr) < LINCORE_BASE))
-
 static inline int __access_ok(unsigned long addr, unsigned long size)
 {
-	return __kernel_ok || !__user_bad(addr, size);
+	/*
+	 * Allow access to the user mapped memory area, but not the system area
+	 * before it. The check extends to the top of the address space when
+	 * kernel access is allowed (there's no real reason to user copy to the
+	 * system area in any case).
+	 */
+	if (likely(addr >= META_MEMORY_BASE && addr < get_fs().seg &&
+		   size <= get_fs().seg - addr))
+		return true;
+	/*
+	 * Explicitly allow NULL pointers here. Parts of the kernel such
+	 * as readv/writev use access_ok to validate pointers, but want
+	 * to allow NULL pointers for various reasons. NULL pointers are
+	 * safe to allow through because the first page is not mappable on
+	 * Meta.
+	 */
+	if (!addr)
+		return true;
+	/* Allow access to core code memory area... */
+	if (addr >= LINCORE_CODE_BASE && addr <= LINCORE_CODE_LIMIT &&
+	    size <= LINCORE_CODE_LIMIT + 1 - addr)
+		return true;
+	/* ... but no other areas. */
+	return false;
 }
 
 #define access_ok(type, addr, size) __access_ok((unsigned long)(addr),	\
@@ -186,8 +194,13 @@ do {
 extern long __must_check __strncpy_from_user(char *dst, const char __user *src,
 					     long count);
 
-#define strncpy_from_user(dst, src, count) __strncpy_from_user(dst, src, count)
-
+static inline long
+strncpy_from_user(char *dst, const char __user *src, long count)
+{
+	if (!access_ok(VERIFY_READ, src, 1))
+		return -EFAULT;
+	return __strncpy_from_user(dst, src, count);
+}
 /*
  * Return the size of a string (including the ending 0)
  *
@@ -197,20 +210,21 @@ extern long __must_check strnlen_user(co
 
 #define strlen_user(str) strnlen_user(str, 32767)
 
-extern unsigned long __must_check __copy_user_zeroing(void *to,
-						      const void __user *from,
-						      unsigned long n);
+extern unsigned long raw_copy_from_user(void *to, const void __user *from,
+					unsigned long n);
 
 static inline unsigned long
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+	unsigned long res = n;
 	if (likely(access_ok(VERIFY_READ, from, n)))
-		return __copy_user_zeroing(to, from, n);
-	memset(to, 0, n);
-	return n;
+		res = raw_copy_from_user(to, from, n);
+	if (unlikely(res))
+		memset(to + (n - res), 0, res);
+	return res;
 }
 
-#define __copy_from_user(to, from, n) __copy_user_zeroing(to, from, n)
+#define __copy_from_user(to, from, n) raw_copy_from_user(to, from, n)
 #define __copy_from_user_inatomic __copy_from_user
 
 extern unsigned long __must_check __copy_user(void __user *to,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/metag/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/metag/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/metag/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/metag/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,16 @@
  * user_regset definitions.
  */
 
+static unsigned long user_txstatus(const struct pt_regs *regs)
+{
+	unsigned long data = (unsigned long)regs->ctx.Flags;
+
+	if (regs->ctx.SaveMask & TBICTX_CBUF_BIT)
+		data |= USER_GP_REGS_STATUS_CATCH_BIT;
+
+	return data;
+}
+
 int metag_gp_regs_copyout(const struct pt_regs *regs,
 			  unsigned int pos, unsigned int count,
 			  void *kbuf, void __user *ubuf)
@@ -62,9 +72,7 @@ int metag_gp_regs_copyout(const struct p
 	if (ret)
 		goto out;
 	/* TXSTATUS */
-	data = (unsigned long)regs->ctx.Flags;
-	if (regs->ctx.SaveMask & TBICTX_CBUF_BIT)
-		data |= USER_GP_REGS_STATUS_CATCH_BIT;
+	data = user_txstatus(regs);
 	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
 				  &data, 4*25, 4*26);
 	if (ret)
@@ -119,6 +127,7 @@ int metag_gp_regs_copyin(struct pt_regs
 	if (ret)
 		goto out;
 	/* TXSTATUS */
+	data = user_txstatus(regs);
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 &data, 4*25, 4*26);
 	if (ret)
@@ -244,6 +253,8 @@ int metag_rp_state_copyin(struct pt_regs
 	unsigned long long *ptr;
 	int ret, i;
 
+	if (count < 4*13)
+		return -EINVAL;
 	/* Read the entire pipeline before making any changes */
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 &rp, 0, 4*13);
@@ -303,7 +314,7 @@ static int metag_tls_set(struct task_str
 			const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	void __user *tls;
+	void __user *tls = target->thread.tls_ptr;
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &tls, 0, -1);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/metag/lib/usercopy.c linux-libre-4.9.52-gnu/arch/metag/lib/usercopy.c
--- linux-libre-4.9-gnu/arch/metag/lib/usercopy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/metag/lib/usercopy.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,7 +29,6 @@
 		COPY						 \
 		"1:\n"						 \
 		"	.section .fixup,\"ax\"\n"		 \
-		"	MOV D1Ar1,#0\n"				 \
 		FIXUP						 \
 		"	MOVT    D1Ar1,#HI(1b)\n"		 \
 		"	JUMP    D1Ar1,#LO(1b)\n"		 \
@@ -260,27 +259,31 @@
 		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
 		"22:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
-		"SUB	%3, %3, #32\n"					\
 		"23:\n"							\
-		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
+		"SUB	%3, %3, #32\n"					\
 		"24:\n"							\
+		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
+		"25:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"26:\n"							\
 		"SUB	%3, %3, #32\n"					\
 		"DCACHE	[%1+#-64], D0Ar6\n"				\
 		"BR	$Lloop"id"\n"					\
 									\
 		"MOV	RAPF, %1\n"					\
-		"25:\n"							\
+		"27:\n"							\
 		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"26:\n"							\
+		"28:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"29:\n"							\
 		"SUB	%3, %3, #32\n"					\
-		"27:\n"							\
+		"30:\n"							\
 		"MGETL	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"28:\n"							\
+		"31:\n"							\
 		"MSETL	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"32:\n"							\
 		"SUB	%0, %0, #8\n"					\
-		"29:\n"							\
+		"33:\n"							\
 		"SETL	[%0++], D0.7, D1.7\n"				\
 		"SUB	%3, %3, #32\n"					\
 		"1:"							\
@@ -312,11 +315,15 @@
 		"	.long 26b,3b\n"					\
 		"	.long 27b,3b\n"					\
 		"	.long 28b,3b\n"					\
-		"	.long 29b,4b\n"					\
+		"	.long 29b,3b\n"					\
+		"	.long 30b,3b\n"					\
+		"	.long 31b,3b\n"					\
+		"	.long 32b,3b\n"					\
+		"	.long 33b,4b\n"					\
 		"	.previous\n"					\
 		: "=r" (to), "=r" (from), "=r" (ret), "=d" (n)		\
 		: "0" (to), "1" (from), "2" (ret), "3" (n)		\
-		: "D1Ar1", "D0Ar2", "memory")
+		: "D1Ar1", "D0Ar2", "cc", "memory")
 
 /*	rewind 'to' and 'from'  pointers when a fault occurs
  *
@@ -342,7 +349,7 @@
 #define __asm_copy_to_user_64bit_rapf_loop(to,	from, ret, n, id)\
 	__asm_copy_user_64bit_rapf_loop(to, from, ret, n, id,		\
 		"LSR	D0Ar2, D0Ar2, #8\n"				\
-		"AND	D0Ar2, D0Ar2, #0x7\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x7\n"				\
 		"ADDZ	D0Ar2, D0Ar2, #4\n"				\
 		"SUB	D0Ar2, D0Ar2, #1\n"				\
 		"MOV	D1Ar1, #4\n"					\
@@ -403,47 +410,55 @@
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
 		"22:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
-		"SUB	%3, %3, #16\n"					\
 		"23:\n"							\
-		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"24:\n"							\
-		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
 		"SUB	%3, %3, #16\n"					\
-		"25:\n"							\
+		"24:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"26:\n"							\
+		"25:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"26:\n"							\
 		"SUB	%3, %3, #16\n"					\
 		"27:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
 		"28:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"29:\n"							\
+		"SUB	%3, %3, #16\n"					\
+		"30:\n"							\
+		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
+		"31:\n"							\
+		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"32:\n"							\
 		"SUB	%3, %3, #16\n"					\
 		"DCACHE	[%1+#-64], D0Ar6\n"				\
 		"BR	$Lloop"id"\n"					\
 									\
 		"MOV	RAPF, %1\n"					\
-		"29:\n"							\
+		"33:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"30:\n"							\
+		"34:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"35:\n"							\
 		"SUB	%3, %3, #16\n"					\
-		"31:\n"							\
+		"36:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"32:\n"							\
+		"37:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"38:\n"							\
 		"SUB	%3, %3, #16\n"					\
-		"33:\n"							\
+		"39:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"34:\n"							\
+		"40:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"41:\n"							\
 		"SUB	%3, %3, #16\n"					\
-		"35:\n"							\
+		"42:\n"							\
 		"MGETD	D0FrT, D0.5, D0.6, D0.7, [%1++]\n"		\
-		"36:\n"							\
+		"43:\n"							\
 		"MSETD	[%0++], D0FrT, D0.5, D0.6, D0.7\n"		\
+		"44:\n"							\
 		"SUB	%0, %0, #4\n"					\
-		"37:\n"							\
+		"45:\n"							\
 		"SETD	[%0++], D0.7\n"					\
 		"SUB	%3, %3, #16\n"					\
 		"1:"							\
@@ -483,11 +498,19 @@
 		"	.long 34b,3b\n"					\
 		"	.long 35b,3b\n"					\
 		"	.long 36b,3b\n"					\
-		"	.long 37b,4b\n"					\
+		"	.long 37b,3b\n"					\
+		"	.long 38b,3b\n"					\
+		"	.long 39b,3b\n"					\
+		"	.long 40b,3b\n"					\
+		"	.long 41b,3b\n"					\
+		"	.long 42b,3b\n"					\
+		"	.long 43b,3b\n"					\
+		"	.long 44b,3b\n"					\
+		"	.long 45b,4b\n"					\
 		"	.previous\n"					\
 		: "=r" (to), "=r" (from), "=r" (ret), "=d" (n)		\
 		: "0" (to), "1" (from), "2" (ret), "3" (n)		\
-		: "D1Ar1", "D0Ar2", "memory")
+		: "D1Ar1", "D0Ar2", "cc", "memory")
 
 /*	rewind 'to' and 'from'  pointers when a fault occurs
  *
@@ -513,7 +536,7 @@
 #define __asm_copy_to_user_32bit_rapf_loop(to, from, ret, n, id)\
 	__asm_copy_user_32bit_rapf_loop(to, from, ret, n, id,		\
 		"LSR	D0Ar2, D0Ar2, #8\n"				\
-		"AND	D0Ar2, D0Ar2, #0x7\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x7\n"				\
 		"ADDZ	D0Ar2, D0Ar2, #4\n"				\
 		"SUB	D0Ar2, D0Ar2, #1\n"				\
 		"MOV	D1Ar1, #4\n"					\
@@ -538,23 +561,31 @@ unsigned long __copy_user(void __user *p
 	if ((unsigned long) src & 1) {
 		__asm_copy_to_user_1(dst, src, retn);
 		n--;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 1) {
 		/* Worst case - byte copy */
 		while (n > 0) {
 			__asm_copy_to_user_1(dst, src, retn);
 			n--;
+			if (retn)
+				return retn + n;
 		}
 	}
 	if (((unsigned long) src & 2) && n >= 2) {
 		__asm_copy_to_user_2(dst, src, retn);
 		n -= 2;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 2) {
 		/* Second worst case - word copy */
 		while (n >= 2) {
 			__asm_copy_to_user_2(dst, src, retn);
 			n -= 2;
+			if (retn)
+				return retn + n;
 		}
 	}
 
@@ -569,6 +600,8 @@ unsigned long __copy_user(void __user *p
 		while (n >= 8) {
 			__asm_copy_to_user_8x64(dst, src, retn);
 			n -= 8;
+			if (retn)
+				return retn + n;
 		}
 	}
 	if (n >= RAPF_MIN_BUF_SIZE) {
@@ -581,6 +614,8 @@ unsigned long __copy_user(void __user *p
 		while (n >= 8) {
 			__asm_copy_to_user_8x64(dst, src, retn);
 			n -= 8;
+			if (retn)
+				return retn + n;
 		}
 	}
 #endif
@@ -588,11 +623,15 @@ unsigned long __copy_user(void __user *p
 	while (n >= 16) {
 		__asm_copy_to_user_16(dst, src, retn);
 		n -= 16;
+		if (retn)
+			return retn + n;
 	}
 
 	while (n >= 4) {
 		__asm_copy_to_user_4(dst, src, retn);
 		n -= 4;
+		if (retn)
+			return retn + n;
 	}
 
 	switch (n) {
@@ -609,6 +648,10 @@ unsigned long __copy_user(void __user *p
 		break;
 	}
 
+	/*
+	 * If we get here, retn correctly reflects the number of failing
+	 * bytes.
+	 */
 	return retn;
 }
 EXPORT_SYMBOL(__copy_user);
@@ -617,16 +660,14 @@ EXPORT_SYMBOL(__copy_user);
 	__asm_copy_user_cont(to, from, ret,	\
 		"	GETB D1Ar1,[%1++]\n"	\
 		"2:	SETB [%0++],D1Ar1\n",	\
-		"3:	ADD  %2,%2,#1\n"	\
-		"	SETB [%0++],D1Ar1\n",	\
+		"3:	ADD  %2,%2,#1\n",	\
 		"	.long 2b,3b\n")
 
 #define __asm_copy_from_user_2x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
 	__asm_copy_user_cont(to, from, ret,		\
 		"	GETW D1Ar1,[%1++]\n"		\
 		"2:	SETW [%0++],D1Ar1\n" COPY,	\
-		"3:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
+		"3:	ADD  %2,%2,#2\n" FIXUP,		\
 		"	.long 2b,3b\n" TENTRY)
 
 #define __asm_copy_from_user_2(to, from, ret) \
@@ -636,145 +677,26 @@ EXPORT_SYMBOL(__copy_user);
 	__asm_copy_from_user_2x_cont(to, from, ret,	\
 		"	GETB D1Ar1,[%1++]\n"		\
 		"4:	SETB [%0++],D1Ar1\n",		\
-		"5:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
+		"5:	ADD  %2,%2,#1\n",		\
 		"	.long 4b,5b\n")
 
 #define __asm_copy_from_user_4x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
 	__asm_copy_user_cont(to, from, ret,		\
 		"	GETD D1Ar1,[%1++]\n"		\
 		"2:	SETD [%0++],D1Ar1\n" COPY,	\
-		"3:	ADD  %2,%2,#4\n"		\
-		"	SETD [%0++],D1Ar1\n" FIXUP,	\
+		"3:	ADD  %2,%2,#4\n" FIXUP,		\
 		"	.long 2b,3b\n" TENTRY)
 
 #define __asm_copy_from_user_4(to, from, ret) \
 	__asm_copy_from_user_4x_cont(to, from, ret, "", "", "")
 
-#define __asm_copy_from_user_5(to, from, ret) \
-	__asm_copy_from_user_4x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"4:	SETB [%0++],D1Ar1\n",		\
-		"5:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 4b,5b\n")
-
-#define __asm_copy_from_user_6x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_4x_cont(to, from, ret,	\
-		"	GETW D1Ar1,[%1++]\n"		\
-		"4:	SETW [%0++],D1Ar1\n" COPY,	\
-		"5:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 4b,5b\n" TENTRY)
-
-#define __asm_copy_from_user_6(to, from, ret) \
-	__asm_copy_from_user_6x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_7(to, from, ret) \
-	__asm_copy_from_user_6x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"6:	SETB [%0++],D1Ar1\n",		\
-		"7:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 6b,7b\n")
-
-#define __asm_copy_from_user_8x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_4x_cont(to, from, ret,	\
-		"	GETD D1Ar1,[%1++]\n"		\
-		"4:	SETD [%0++],D1Ar1\n" COPY,	\
-		"5:	ADD  %2,%2,#4\n"			\
-		"	SETD [%0++],D1Ar1\n" FIXUP,		\
-		"	.long 4b,5b\n" TENTRY)
-
-#define __asm_copy_from_user_8(to, from, ret) \
-	__asm_copy_from_user_8x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_9(to, from, ret) \
-	__asm_copy_from_user_8x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"6:	SETB [%0++],D1Ar1\n",		\
-		"7:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 6b,7b\n")
-
-#define __asm_copy_from_user_10x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_8x_cont(to, from, ret,	\
-		"	GETW D1Ar1,[%1++]\n"		\
-		"6:	SETW [%0++],D1Ar1\n" COPY,	\
-		"7:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 6b,7b\n" TENTRY)
-
-#define __asm_copy_from_user_10(to, from, ret) \
-	__asm_copy_from_user_10x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_11(to, from, ret)		\
-	__asm_copy_from_user_10x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"8:	SETB [%0++],D1Ar1\n",		\
-		"9:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 8b,9b\n")
-
-#define __asm_copy_from_user_12x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_8x_cont(to, from, ret,	\
-		"	GETD D1Ar1,[%1++]\n"		\
-		"6:	SETD [%0++],D1Ar1\n" COPY,	\
-		"7:	ADD  %2,%2,#4\n"		\
-		"	SETD [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 6b,7b\n" TENTRY)
-
-#define __asm_copy_from_user_12(to, from, ret) \
-	__asm_copy_from_user_12x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_13(to, from, ret) \
-	__asm_copy_from_user_12x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"8:	SETB [%0++],D1Ar1\n",		\
-		"9:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 8b,9b\n")
-
-#define __asm_copy_from_user_14x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_12x_cont(to, from, ret,	\
-		"	GETW D1Ar1,[%1++]\n"		\
-		"8:	SETW [%0++],D1Ar1\n" COPY,	\
-		"9:	ADD  %2,%2,#2\n"		\
-		"	SETW [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 8b,9b\n" TENTRY)
-
-#define __asm_copy_from_user_14(to, from, ret) \
-	__asm_copy_from_user_14x_cont(to, from, ret, "", "", "")
-
-#define __asm_copy_from_user_15(to, from, ret) \
-	__asm_copy_from_user_14x_cont(to, from, ret,	\
-		"	GETB D1Ar1,[%1++]\n"		\
-		"10:	SETB [%0++],D1Ar1\n",		\
-		"11:	ADD  %2,%2,#1\n"		\
-		"	SETB [%0++],D1Ar1\n",		\
-		"	.long 10b,11b\n")
-
-#define __asm_copy_from_user_16x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
-	__asm_copy_from_user_12x_cont(to, from, ret,	\
-		"	GETD D1Ar1,[%1++]\n"		\
-		"8:	SETD [%0++],D1Ar1\n" COPY,	\
-		"9:	ADD  %2,%2,#4\n"		\
-		"	SETD [%0++],D1Ar1\n" FIXUP,	\
-		"	.long 8b,9b\n" TENTRY)
-
-#define __asm_copy_from_user_16(to, from, ret) \
-	__asm_copy_from_user_16x_cont(to, from, ret, "", "", "")
-
 #define __asm_copy_from_user_8x64(to, from, ret) \
 	asm volatile (				\
 		"	GETL D0Ar2,D1Ar1,[%1++]\n"	\
 		"2:	SETL [%0++],D0Ar2,D1Ar1\n"	\
 		"1:\n"					\
 		"	.section .fixup,\"ax\"\n"	\
-		"	MOV D1Ar1,#0\n"			\
-		"	MOV D0Ar2,#0\n"			\
 		"3:	ADD  %2,%2,#8\n"		\
-		"	SETL [%0++],D0Ar2,D1Ar1\n"	\
 		"	MOVT    D0Ar2,#HI(1b)\n"	\
 		"	JUMP    D0Ar2,#LO(1b)\n"	\
 		"	.previous\n"			\
@@ -789,36 +711,57 @@ EXPORT_SYMBOL(__copy_user);
  *
  *	Rationale:
  *		A fault occurs while reading from user buffer, which is the
- *		source. Since the fault is at a single address, we only
- *		need to rewind by 8 bytes.
+ *		source.
  *		Since we don't write to kernel buffer until we read first,
  *		the kernel buffer is at the right state and needn't be
- *		corrected.
+ *		corrected, but the source must be rewound to the beginning of
+ *		the block, which is LSM_STEP*8 bytes.
+ *		LSM_STEP is bits 10:8 in TXSTATUS which is already read
+ *		and stored in D0Ar2
+ *
+ *		NOTE: If a fault occurs at the last operation in M{G,S}ETL
+ *			LSM_STEP will be 0. ie: we do 4 writes in our case, if
+ *			a fault happens at the 4th write, LSM_STEP will be 0
+ *			instead of 4. The code copes with that.
  */
 #define __asm_copy_from_user_64bit_rapf_loop(to, from, ret, n, id)	\
 	__asm_copy_user_64bit_rapf_loop(to, from, ret, n, id,		\
-		"SUB	%1, %1, #8\n")
+		"LSR	D0Ar2, D0Ar2, #5\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x38\n"				\
+		"ADDZ	D0Ar2, D0Ar2, #32\n"				\
+		"SUB	%1, %1, D0Ar2\n")
 
 /*	rewind 'from' pointer when a fault occurs
  *
  *	Rationale:
  *		A fault occurs while reading from user buffer, which is the
- *		source. Since the fault is at a single address, we only
- *		need to rewind by 4 bytes.
+ *		source.
  *		Since we don't write to kernel buffer until we read first,
  *		the kernel buffer is at the right state and needn't be
- *		corrected.
+ *		corrected, but the source must be rewound to the beginning of
+ *		the block, which is LSM_STEP*4 bytes.
+ *		LSM_STEP is bits 10:8 in TXSTATUS which is already read
+ *		and stored in D0Ar2
+ *
+ *		NOTE: If a fault occurs at the last operation in M{G,S}ETL
+ *			LSM_STEP will be 0. ie: we do 4 writes in our case, if
+ *			a fault happens at the 4th write, LSM_STEP will be 0
+ *			instead of 4. The code copes with that.
  */
 #define __asm_copy_from_user_32bit_rapf_loop(to, from, ret, n, id)	\
 	__asm_copy_user_32bit_rapf_loop(to, from, ret, n, id,		\
-		"SUB	%1, %1, #4\n")
+		"LSR	D0Ar2, D0Ar2, #6\n"				\
+		"ANDS	D0Ar2, D0Ar2, #0x1c\n"				\
+		"ADDZ	D0Ar2, D0Ar2, #16\n"				\
+		"SUB	%1, %1, D0Ar2\n")
 
 
-/* Copy from user to kernel, zeroing the bytes that were inaccessible in
-   userland.  The return-value is the number of bytes that were
-   inaccessible.  */
-unsigned long __copy_user_zeroing(void *pdst, const void __user *psrc,
-				  unsigned long n)
+/*
+ * Copy from user to kernel. The return-value is the number of bytes that were
+ * inaccessible.
+ */
+unsigned long raw_copy_from_user(void *pdst, const void __user *psrc,
+				 unsigned long n)
 {
 	register char *dst asm ("A0.2") = pdst;
 	register const char __user *src asm ("A1.2") = psrc;
@@ -830,6 +773,8 @@ unsigned long __copy_user_zeroing(void *
 	if ((unsigned long) src & 1) {
 		__asm_copy_from_user_1(dst, src, retn);
 		n--;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 1) {
 		/* Worst case - byte copy */
@@ -837,12 +782,14 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_1(dst, src, retn);
 			n--;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 	if (((unsigned long) src & 2) && n >= 2) {
 		__asm_copy_from_user_2(dst, src, retn);
 		n -= 2;
+		if (retn)
+			return retn + n;
 	}
 	if ((unsigned long) dst & 2) {
 		/* Second worst case - word copy */
@@ -850,16 +797,10 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_2(dst, src, retn);
 			n -= 2;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 
-	/* We only need one check after the unalignment-adjustments,
-	   because if both adjustments were done, either both or
-	   neither reference had an exception.  */
-	if (retn != 0)
-		goto copy_exception_bytes;
-
 #ifdef USE_RAPF
 	/* 64 bit copy loop */
 	if (!(((unsigned long) src | (unsigned long) dst) & 7)) {
@@ -872,7 +813,7 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_8x64(dst, src, retn);
 			n -= 8;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 
@@ -888,7 +829,7 @@ unsigned long __copy_user_zeroing(void *
 			__asm_copy_from_user_8x64(dst, src, retn);
 			n -= 8;
 			if (retn)
-				goto copy_exception_bytes;
+				return retn + n;
 		}
 	}
 #endif
@@ -898,7 +839,7 @@ unsigned long __copy_user_zeroing(void *
 		n -= 4;
 
 		if (retn)
-			goto copy_exception_bytes;
+			return retn + n;
 	}
 
 	/* If we get here, there were no memory read faults.  */
@@ -924,21 +865,8 @@ unsigned long __copy_user_zeroing(void *
 	/* If we get here, retn correctly reflects the number of failing
 	   bytes.  */
 	return retn;
-
- copy_exception_bytes:
-	/* We already have "retn" bytes cleared, and need to clear the
-	   remaining "n" bytes.  A non-optimized simple byte-for-byte in-line
-	   memset is preferred here, since this isn't speed-critical code and
-	   we'd rather have this a leaf-function than calling memset.  */
-	{
-		char *endp;
-		for (endp = dst + n; dst < endp; dst++)
-			*dst = 0;
-	}
-
-	return retn + n;
 }
-EXPORT_SYMBOL(__copy_user_zeroing);
+EXPORT_SYMBOL(raw_copy_from_user);
 
 #define __asm_clear_8x64(to, ret) \
 	asm volatile (					\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/bcm47xx/buttons.c linux-libre-4.9.52-gnu/arch/mips/bcm47xx/buttons.c
--- linux-libre-4.9-gnu/arch/mips/bcm47xx/buttons.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/bcm47xx/buttons.c	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,12 @@
 		.active_low	= 1,					\
 	}
 
+#define BCM47XX_GPIO_KEY_H(_gpio, _code)				\
+	{								\
+		.code		= _code,				\
+		.gpio		= _gpio,				\
+	}
+
 /* Asus */
 
 static const struct gpio_keys_button
@@ -79,8 +85,8 @@ bcm47xx_buttons_asus_wl500gpv2[] __initc
 
 static const struct gpio_keys_button
 bcm47xx_buttons_asus_wl500w[] __initconst = {
-	BCM47XX_GPIO_KEY(6, KEY_RESTART),
-	BCM47XX_GPIO_KEY(7, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY_H(6, KEY_RESTART),
+	BCM47XX_GPIO_KEY_H(7, KEY_WPS_BUTTON),
 };
 
 static const struct gpio_keys_button
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/boot/Makefile linux-libre-4.9.52-gnu/arch/mips/boot/Makefile
--- linux-libre-4.9-gnu/arch/mips/boot/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/boot/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -128,19 +128,19 @@ quiet_cmd_cpp_its_S = ITS     $@
 			-DADDR_BITS=$(ADDR_BITS) \
 			-DADDR_CELLS=$(itb_addr_cells)
 
-$(obj)/vmlinux.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S FORCE
+$(obj)/vmlinux.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,none,vmlinux.bin)
 
-$(obj)/vmlinux.gz.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S FORCE
+$(obj)/vmlinux.gz.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,gzip,vmlinux.bin.gz)
 
-$(obj)/vmlinux.bz2.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S FORCE
+$(obj)/vmlinux.bz2.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX)  FORCE
 	$(call if_changed_dep,cpp_its_S,bzip2,vmlinux.bin.bz2)
 
-$(obj)/vmlinux.lzma.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S FORCE
+$(obj)/vmlinux.lzma.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,lzma,vmlinux.bin.lzma)
 
-$(obj)/vmlinux.lzo.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S FORCE
+$(obj)/vmlinux.lzo.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,lzo,vmlinux.bin.lzo)
 
 quiet_cmd_itb-image = ITB     $@
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/cavium-octeon/octeon-memcpy.S linux-libre-4.9.52-gnu/arch/mips/cavium-octeon/octeon-memcpy.S
--- linux-libre-4.9-gnu/arch/mips/cavium-octeon/octeon-memcpy.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/cavium-octeon/octeon-memcpy.S	2017-09-27 08:40:05.000000000 -0400
@@ -208,18 +208,18 @@ EXC(	STORE	t2, UNIT(6)(dst),	s_exc_p10u)
 	ADD	src, src, 16*NBYTES
 EXC(	STORE	t3, UNIT(7)(dst),	s_exc_p9u)
 	ADD	dst, dst, 16*NBYTES
-EXC(	LOAD	t0, UNIT(-8)(src),	l_exc_copy)
-EXC(	LOAD	t1, UNIT(-7)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(-6)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(-5)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(-8)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t1, UNIT(-7)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t2, UNIT(-6)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t3, UNIT(-5)(src),	l_exc_copy_rewind16)
 EXC(	STORE	t0, UNIT(-8)(dst),	s_exc_p8u)
 EXC(	STORE	t1, UNIT(-7)(dst),	s_exc_p7u)
 EXC(	STORE	t2, UNIT(-6)(dst),	s_exc_p6u)
 EXC(	STORE	t3, UNIT(-5)(dst),	s_exc_p5u)
-EXC(	LOAD	t0, UNIT(-4)(src),	l_exc_copy)
-EXC(	LOAD	t1, UNIT(-3)(src),	l_exc_copy)
-EXC(	LOAD	t2, UNIT(-2)(src),	l_exc_copy)
-EXC(	LOAD	t3, UNIT(-1)(src),	l_exc_copy)
+EXC(	LOAD	t0, UNIT(-4)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t1, UNIT(-3)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t2, UNIT(-2)(src),	l_exc_copy_rewind16)
+EXC(	LOAD	t3, UNIT(-1)(src),	l_exc_copy_rewind16)
 EXC(	STORE	t0, UNIT(-4)(dst),	s_exc_p4u)
 EXC(	STORE	t1, UNIT(-3)(dst),	s_exc_p3u)
 EXC(	STORE	t2, UNIT(-2)(dst),	s_exc_p2u)
@@ -383,6 +383,10 @@ done:
 	 nop
 	END(memcpy)
 
+l_exc_copy_rewind16:
+	/* Rewind src and dst by 16*NBYTES for l_exc_copy */
+	SUB	src, src, 16*NBYTES
+	SUB	dst, dst, 16*NBYTES
 l_exc_copy:
 	/*
 	 * Copy bytes from src until faulting load address (or until a
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/ip22_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/ip22_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/ip22_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/ip22_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -67,8 +67,8 @@ CONFIG_NETFILTER_NETLINK_QUEUE=m
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/ip27_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/ip27_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/ip27_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/ip27_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -133,7 +133,7 @@ CONFIG_LIBFC=m
 CONFIG_SCSI_QLOGIC_1280=y
 CONFIG_SCSI_PMCRAID=m
 CONFIG_SCSI_BFA_FC=m
-CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH=y
 CONFIG_SCSI_DH_RDAC=m
 CONFIG_SCSI_DH_HP_SW=m
 CONFIG_SCSI_DH_EMC=m
@@ -205,7 +205,6 @@ CONFIG_MLX4_EN=m
 # CONFIG_MLX4_DEBUG is not set
 CONFIG_TEHUTI=m
 CONFIG_BNX2X=m
-CONFIG_QLGE=m
 CONFIG_SFC=m
 CONFIG_BE2NET=m
 CONFIG_LIBERTAS_THINFIRM=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/lemote2f_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/lemote2f_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/lemote2f_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/lemote2f_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -39,7 +39,7 @@ CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION="/dev/hda3"
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_DEBUG=y
-CONFIG_CPU_FREQ_STAT=m
+CONFIG_CPU_FREQ_STAT=y
 CONFIG_CPU_FREQ_STAT_DETAILS=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/malta_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/malta_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/malta_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/malta_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -59,8 +59,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/malta_kvm_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/malta_kvm_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/malta_kvm_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/malta_kvm_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -60,8 +60,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/malta_kvm_guest_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/malta_kvm_guest_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/malta_kvm_guest_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/malta_kvm_guest_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -59,8 +59,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/maltaup_xpa_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/maltaup_xpa_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/maltaup_xpa_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/maltaup_xpa_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -61,8 +61,8 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_DCCP=m
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_DCCP=y
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/nlm_xlp_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/nlm_xlp_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/nlm_xlp_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/nlm_xlp_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -110,7 +110,7 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/configs/nlm_xlr_defconfig linux-libre-4.9.52-gnu/arch/mips/configs/nlm_xlr_defconfig
--- linux-libre-4.9-gnu/arch/mips/configs/nlm_xlr_defconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/configs/nlm_xlr_defconfig	2017-09-27 08:40:05.000000000 -0400
@@ -90,7 +90,7 @@ CONFIG_NETFILTER=y
 CONFIG_NF_CONNTRACK=m
 CONFIG_NF_CONNTRACK_SECMARK=y
 CONFIG_NF_CONNTRACK_EVENTS=y
-CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CT_PROTO_UDPLITE=y
 CONFIG_NF_CONNTRACK_AMANDA=m
 CONFIG_NF_CONNTRACK_FTP=m
 CONFIG_NF_CONNTRACK_H323=m
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/dec/int-handler.S linux-libre-4.9.52-gnu/arch/mips/dec/int-handler.S
--- linux-libre-4.9-gnu/arch/mips/dec/int-handler.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/dec/int-handler.S	2017-09-27 08:40:05.000000000 -0400
@@ -147,23 +147,12 @@
 		 * Find irq with highest priority
 		 */
 		# open coded PTR_LA t1, cpu_mask_nr_tbl
-#if (_MIPS_SZPTR == 32)
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
 		# open coded la t1, cpu_mask_nr_tbl
 		lui	t1, %hi(cpu_mask_nr_tbl)
 		addiu	t1, %lo(cpu_mask_nr_tbl)
-
-#endif
-#if (_MIPS_SZPTR == 64)
-		# open coded dla t1, cpu_mask_nr_tbl
-		.set	push
-		.set	noat
-		lui	t1, %highest(cpu_mask_nr_tbl)
-		lui	AT, %hi(cpu_mask_nr_tbl)
-		daddiu	t1, t1, %higher(cpu_mask_nr_tbl)
-		daddiu	AT, AT, %lo(cpu_mask_nr_tbl)
-		dsll	t1, 32
-		daddu	t1, t1, AT
-		.set	pop
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
 #endif
 1:		lw	t2,(t1)
 		nop
@@ -214,23 +203,12 @@
 		 * Find irq with highest priority
 		 */
 		# open coded PTR_LA t1,asic_mask_nr_tbl
-#if (_MIPS_SZPTR == 32)
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
 		# open coded la t1, asic_mask_nr_tbl
 		lui	t1, %hi(asic_mask_nr_tbl)
 		addiu	t1, %lo(asic_mask_nr_tbl)
-
-#endif
-#if (_MIPS_SZPTR == 64)
-		# open coded dla t1, asic_mask_nr_tbl
-		.set	push
-		.set	noat
-		lui	t1, %highest(asic_mask_nr_tbl)
-		lui	AT, %hi(asic_mask_nr_tbl)
-		daddiu	t1, t1, %higher(asic_mask_nr_tbl)
-		daddiu	AT, AT, %lo(asic_mask_nr_tbl)
-		dsll	t1, 32
-		daddu	t1, t1, AT
-		.set	pop
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
 #endif
 2:		lw	t2,(t1)
 		nop
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/include/asm/branch.h linux-libre-4.9.52-gnu/arch/mips/include/asm/branch.h
--- linux-libre-4.9-gnu/arch/mips/include/asm/branch.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/include/asm/branch.h	2017-09-27 08:40:05.000000000 -0400
@@ -74,10 +74,7 @@ static inline int compute_return_epc(str
 			return __microMIPS_compute_return_epc(regs);
 		if (cpu_has_mips16)
 			return __MIPS16e_compute_return_epc(regs);
-		return regs->cp0_epc;
-	}
-
-	if (!delay_slot(regs)) {
+	} else if (!delay_slot(regs)) {
 		regs->cp0_epc += 4;
 		return 0;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/include/asm/checksum.h linux-libre-4.9.52-gnu/arch/mips/include/asm/checksum.h
--- linux-libre-4.9-gnu/arch/mips/include/asm/checksum.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/include/asm/checksum.h	2017-09-27 08:40:05.000000000 -0400
@@ -186,7 +186,9 @@ static inline __wsum csum_tcpudp_nofold(
 	"	daddu	%0, %4		\n"
 	"	dsll32	$1, %0, 0	\n"
 	"	daddu	%0, $1		\n"
+	"	sltu	$1, %0, $1	\n"
 	"	dsra32	%0, %0, 0	\n"
+	"	addu	%0, $1		\n"
 #endif
 	"	.set	pop"
 	: "=r" (sum)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/include/asm/irq.h linux-libre-4.9.52-gnu/arch/mips/include/asm/irq.h
--- linux-libre-4.9-gnu/arch/mips/include/asm/irq.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/include/asm/irq.h	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,18 @@
 
 #include <irq.h>
 
+#define IRQ_STACK_SIZE			THREAD_SIZE
+
+extern void *irq_stack[NR_CPUS];
+
+static inline bool on_irq_stack(int cpu, unsigned long sp)
+{
+	unsigned long low = (unsigned long)irq_stack[cpu];
+	unsigned long high = low + IRQ_STACK_SIZE;
+
+	return (low <= sp && sp <= high);
+}
+
 #ifdef CONFIG_I8259
 static inline int irq_canonicalize(int irq)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/include/asm/mach-ip27/spaces.h linux-libre-4.9.52-gnu/arch/mips/include/asm/mach-ip27/spaces.h
--- linux-libre-4.9-gnu/arch/mips/include/asm/mach-ip27/spaces.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/include/asm/mach-ip27/spaces.h	2017-09-27 08:40:05.000000000 -0400
@@ -12,14 +12,16 @@
 
 /*
  * IP27 uses the R10000's uncached attribute feature.  Attribute 3 selects
- * uncached memory addressing.
+ * uncached memory addressing. Hide the definitions on 32-bit compilation
+ * of the compat-vdso code.
  */
-
+#ifdef CONFIG_64BIT
 #define HSPEC_BASE		0x9000000000000000
 #define IO_BASE			0x9200000000000000
 #define MSPEC_BASE		0x9400000000000000
 #define UNCAC_BASE		0x9600000000000000
 #define CAC_BASE		0xa800000000000000
+#endif
 
 #define TO_MSPEC(x)		(MSPEC_BASE | ((x) & TO_PHYS_MASK))
 #define TO_HSPEC(x)		(HSPEC_BASE | ((x) & TO_PHYS_MASK))
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/include/asm/spinlock.h linux-libre-4.9.52-gnu/arch/mips/include/asm/spinlock.h
--- linux-libre-4.9-gnu/arch/mips/include/asm/spinlock.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/include/asm/spinlock.h	2017-09-27 08:40:05.000000000 -0400
@@ -127,7 +127,7 @@ static inline void arch_spin_lock(arch_s
 		"	andi	%[ticket], %[ticket], 0xffff		\n"
 		"	bne	%[ticket], %[my_ticket], 4f		\n"
 		"	 subu	%[ticket], %[my_ticket], %[ticket]	\n"
-		"2:							\n"
+		"2:	.insn						\n"
 		"	.subsection 2					\n"
 		"4:	andi	%[ticket], %[ticket], 0xffff		\n"
 		"	sll	%[ticket], 5				\n"
@@ -202,7 +202,7 @@ static inline unsigned int arch_spin_try
 		"	sc	%[ticket], %[ticket_ptr]		\n"
 		"	beqz	%[ticket], 1b				\n"
 		"	 li	%[ticket], 1				\n"
-		"2:							\n"
+		"2:	.insn						\n"
 		"	.subsection 2					\n"
 		"3:	b	2b					\n"
 		"	 li	%[ticket], 0				\n"
@@ -382,7 +382,7 @@ static inline int arch_read_trylock(arch
 		"	.set	reorder					\n"
 		__WEAK_LLSC_MB
 		"	li	%2, 1					\n"
-		"2:							\n"
+		"2:	.insn						\n"
 		: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp), "=&r" (ret)
 		: GCC_OFF_SMALL_ASM() (rw->lock)
 		: "memory");
@@ -422,7 +422,7 @@ static inline int arch_write_trylock(arc
 			"	lui	%1, 0x8000			\n"
 			"	sc	%1, %0				\n"
 			"	li	%2, 1				\n"
-			"2:						\n"
+			"2:	.insn					\n"
 			: "=" GCC_OFF_SMALL_ASM() (rw->lock), "=&r" (tmp),
 			  "=&r" (ret)
 			: GCC_OFF_SMALL_ASM() (rw->lock)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/include/asm/stackframe.h linux-libre-4.9.52-gnu/arch/mips/include/asm/stackframe.h
--- linux-libre-4.9-gnu/arch/mips/include/asm/stackframe.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/include/asm/stackframe.h	2017-09-27 08:40:05.000000000 -0400
@@ -216,12 +216,19 @@
 		LONG_S	$25, PT_R25(sp)
 		LONG_S	$28, PT_R28(sp)
 		LONG_S	$31, PT_R31(sp)
+
+		/* Set thread_info if we're coming from user mode */
+		mfc0	k0, CP0_STATUS
+		sll	k0, 3		/* extract cu0 bit */
+		bltz	k0, 9f
+
 		ori	$28, sp, _THREAD_MASK
 		xori	$28, _THREAD_MASK
 #ifdef CONFIG_CPU_CAVIUM_OCTEON
 		.set    mips64
 		pref    0, 0($28)       /* Prefetch the current pointer */
 #endif
+9:
 		.set	pop
 		.endm
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/Kconfig linux-libre-4.9.52-gnu/arch/mips/Kconfig
--- linux-libre-4.9-gnu/arch/mips/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -9,6 +9,7 @@ config MIPS
 	select HAVE_CONTEXT_TRACKING
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_IDE
+	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select HAVE_OPROFILE
 	select HAVE_PERF_EVENTS
 	select PERF_USE_VMALLOC
@@ -1367,6 +1368,7 @@ config CPU_LOONGSON3
 	select WEAK_ORDERING
 	select WEAK_REORDERING_BEYOND_LLSC
 	select MIPS_PGD_C0_CONTEXT
+	select MIPS_L1_CACHE_SHIFT_6
 	select GPIOLIB
 	help
 		The Loongson 3 processor implements the MIPS64R2 instruction
@@ -1526,7 +1528,7 @@ config CPU_MIPS64_R6
 	select CPU_SUPPORTS_HIGHMEM
 	select CPU_SUPPORTS_MSA
 	select GENERIC_CSUM
-	select MIPS_O32_FP64_SUPPORT if MIPS32_O32
+	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
 	select HAVE_KVM
 	help
 	  Choose this option to build a kernel for release 6 or later of the
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/asm-offsets.c linux-libre-4.9.52-gnu/arch/mips/kernel/asm-offsets.c
--- linux-libre-4.9-gnu/arch/mips/kernel/asm-offsets.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/asm-offsets.c	2017-09-27 08:40:05.000000000 -0400
@@ -102,6 +102,7 @@ void output_thread_info_defines(void)
 	OFFSET(TI_REGS, thread_info, regs);
 	DEFINE(_THREAD_SIZE, THREAD_SIZE);
 	DEFINE(_THREAD_MASK, THREAD_MASK);
+	DEFINE(_IRQ_STACK_SIZE, IRQ_STACK_SIZE);
 	BLANK();
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/branch.c linux-libre-4.9.52-gnu/arch/mips/kernel/branch.c
--- linux-libre-4.9-gnu/arch/mips/kernel/branch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/branch.c	2017-09-27 08:40:05.000000000 -0400
@@ -399,7 +399,7 @@ int __MIPS16e_compute_return_epc(struct
  *
  * @regs:	Pointer to pt_regs
  * @insn:	branch instruction to decode
- * @returns:	-EFAULT on error and forces SIGBUS, and on success
+ * @returns:	-EFAULT on error and forces SIGILL, and on success
  *		returns 0 or BRANCH_LIKELY_TAKEN as appropriate after
  *		evaluating the branch.
  *
@@ -431,7 +431,7 @@ int __compute_return_epc_for_insn(struct
 			/* Fall through */
 		case jr_op:
 			if (NO_R6EMU && insn.r_format.func == jr_op)
-				goto sigill_r6;
+				goto sigill_r2r6;
 			regs->cp0_epc = regs->regs[insn.r_format.rs];
 			break;
 		}
@@ -446,7 +446,7 @@ int __compute_return_epc_for_insn(struct
 		switch (insn.i_format.rt) {
 		case bltzl_op:
 			if (NO_R6EMU)
-				goto sigill_r6;
+				goto sigill_r2r6;
 		case bltz_op:
 			if ((long)regs->regs[insn.i_format.rs] < 0) {
 				epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -459,7 +459,7 @@ int __compute_return_epc_for_insn(struct
 
 		case bgezl_op:
 			if (NO_R6EMU)
-				goto sigill_r6;
+				goto sigill_r2r6;
 		case bgez_op:
 			if ((long)regs->regs[insn.i_format.rs] >= 0) {
 				epc = epc + 4 + (insn.i_format.simmediate << 2);
@@ -473,10 +473,8 @@ int __compute_return_epc_for_insn(struct
 		case bltzal_op:
 		case bltzall_op:
 			if (NO_R6EMU && (insn.i_format.rs ||
-			    insn.i_format.rt == bltzall_op)) {
-				ret = -SIGILL;
-				break;
-			}
+			    insn.i_format.rt == bltzall_op))
+				goto sigill_r2r6;
 			regs->regs[31] = epc + 8;
 			/*
 			 * OK we are here either because we hit a NAL
@@ -507,10 +505,8 @@ int __compute_return_epc_for_insn(struct
 		case bgezal_op:
 		case bgezall_op:
 			if (NO_R6EMU && (insn.i_format.rs ||
-			    insn.i_format.rt == bgezall_op)) {
-				ret = -SIGILL;
-				break;
-			}
+			    insn.i_format.rt == bgezall_op))
+				goto sigill_r2r6;
 			regs->regs[31] = epc + 8;
 			/*
 			 * OK we are here either because we hit a BAL
@@ -556,6 +552,7 @@ int __compute_return_epc_for_insn(struct
 	/*
 	 * These are unconditional and in j_format.
 	 */
+	case jalx_op:
 	case jal_op:
 		regs->regs[31] = regs->cp0_epc + 8;
 	case j_op:
@@ -573,7 +570,7 @@ int __compute_return_epc_for_insn(struct
 	 */
 	case beql_op:
 		if (NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case beq_op:
 		if (regs->regs[insn.i_format.rs] ==
 		    regs->regs[insn.i_format.rt]) {
@@ -587,7 +584,7 @@ int __compute_return_epc_for_insn(struct
 
 	case bnel_op:
 		if (NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case bne_op:
 		if (regs->regs[insn.i_format.rs] !=
 		    regs->regs[insn.i_format.rt]) {
@@ -601,7 +598,7 @@ int __compute_return_epc_for_insn(struct
 
 	case blezl_op: /* not really i_format */
 		if (!insn.i_format.rt && NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case blez_op:
 		/*
 		 * Compact branches for R6 for the
@@ -636,7 +633,7 @@ int __compute_return_epc_for_insn(struct
 
 	case bgtzl_op:
 		if (!insn.i_format.rt && NO_R6EMU)
-			goto sigill_r6;
+			goto sigill_r2r6;
 	case bgtz_op:
 		/*
 		 * Compact branches for R6 for the
@@ -774,48 +771,40 @@ int __compute_return_epc_for_insn(struct
 #else
 	case bc6_op:
 		/* Only valid for MIPS R6 */
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		regs->cp0_epc += 8;
 		break;
 	case balc6_op:
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/* Compact branch: BALC */
 		regs->regs[31] = epc + 4;
 		epc += 4 + (insn.i_format.simmediate << 2);
 		regs->cp0_epc = epc;
 		break;
 	case pop66_op:
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/* Compact branch: BEQZC || JIC */
 		regs->cp0_epc += 8;
 		break;
 	case pop76_op:
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/* Compact branch: BNEZC || JIALC */
-		if (insn.i_format.rs)
+		if (!insn.i_format.rs) {
+			/* JIALC: set $31/ra */
 			regs->regs[31] = epc + 4;
+		}
 		regs->cp0_epc += 8;
 		break;
 #endif
 	case pop10_op:
 	case pop30_op:
 		/* Only valid for MIPS R6 */
-		if (!cpu_has_mips_r6) {
-			ret = -SIGILL;
-			break;
-		}
+		if (!cpu_has_mips_r6)
+			goto sigill_r6;
 		/*
 		 * Compact branches:
 		 * bovc, beqc, beqzalc, bnvc, bnec, bnezlac
@@ -829,11 +818,17 @@ int __compute_return_epc_for_insn(struct
 	return ret;
 
 sigill_dsp:
-	printk("%s: DSP branch but not DSP ASE - sending SIGBUS.\n", current->comm);
-	force_sig(SIGBUS, current);
+	pr_info("%s: DSP branch but not DSP ASE - sending SIGILL.\n",
+		current->comm);
+	force_sig(SIGILL, current);
+	return -EFAULT;
+sigill_r2r6:
+	pr_info("%s: R2 branch but r2-to-r6 emulator is not present - sending SIGILL.\n",
+		current->comm);
+	force_sig(SIGILL, current);
 	return -EFAULT;
 sigill_r6:
-	pr_info("%s: R2 branch but r2-to-r6 emulator is not preset - sending SIGILL.\n",
+	pr_info("%s: R6 branch but no MIPSr6 ISA support - sending SIGILL.\n",
 		current->comm);
 	force_sig(SIGILL, current);
 	return -EFAULT;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/cevt-r4k.c linux-libre-4.9.52-gnu/arch/mips/kernel/cevt-r4k.c
--- linux-libre-4.9-gnu/arch/mips/kernel/cevt-r4k.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/cevt-r4k.c	2017-09-27 08:40:05.000000000 -0400
@@ -80,7 +80,7 @@ static unsigned int calculate_min_delta(
 		}
 
 		/* Sorted insert of 75th percentile into buf2 */
-		for (k = 0; k < i; ++k) {
+		for (k = 0; k < i && k < ARRAY_SIZE(buf2); ++k) {
 			if (buf1[ARRAY_SIZE(buf1) - 1] < buf2[k]) {
 				l = min_t(unsigned int,
 					  i, ARRAY_SIZE(buf2) - 1);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/cpu-probe.c linux-libre-4.9.52-gnu/arch/mips/kernel/cpu-probe.c
--- linux-libre-4.9-gnu/arch/mips/kernel/cpu-probe.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/cpu-probe.c	2017-09-27 08:40:05.000000000 -0400
@@ -1824,7 +1824,7 @@ static inline void cpu_probe_loongson(st
 		}
 
 		decode_configs(c);
-		c->options |= MIPS_CPU_TLBINV | MIPS_CPU_LDPTE;
+		c->options |= MIPS_CPU_FTLB | MIPS_CPU_TLBINV | MIPS_CPU_LDPTE;
 		c->writecombine = _CACHE_UNCACHED_ACCELERATED;
 		break;
 	default:
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/elf.c linux-libre-4.9.52-gnu/arch/mips/kernel/elf.c
--- linux-libre-4.9-gnu/arch/mips/kernel/elf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/elf.c	2017-09-27 08:40:05.000000000 -0400
@@ -257,7 +257,7 @@ int arch_check_elf(void *_ehdr, bool has
 	else if ((prog_req.fr1 && prog_req.frdefault) ||
 		 (prog_req.single && !prog_req.frdefault))
 		/* Make sure 64-bit MIPS III/IV/64R1 will not pick FR1 */
-		state->overall_fp_mode = ((current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
+		state->overall_fp_mode = ((raw_current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
 					  cpu_has_mips_r2_r6) ?
 					  FP_FR1 : FP_FR0;
 	else if (prog_req.fr1)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/entry.S linux-libre-4.9.52-gnu/arch/mips/kernel/entry.S
--- linux-libre-4.9-gnu/arch/mips/kernel/entry.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/entry.S	2017-09-27 08:40:05.000000000 -0400
@@ -11,6 +11,7 @@
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
 #include <asm/compiler.h>
+#include <asm/irqflags.h>
 #include <asm/regdef.h>
 #include <asm/mipsregs.h>
 #include <asm/stackframe.h>
@@ -137,6 +138,7 @@ work_pending:
 	andi	t0, a2, _TIF_NEED_RESCHED # a2 is preloaded with TI_FLAGS
 	beqz	t0, work_notifysig
 work_resched:
+	TRACE_IRQS_OFF
 	jal	schedule
 
 	local_irq_disable		# make sure need_resched and
@@ -173,6 +175,7 @@ syscall_exit_work:
 	beqz	t0, work_pending	# trace bit set?
 	local_irq_enable		# could let syscall_trace_leave()
 					# call schedule() instead
+	TRACE_IRQS_ON
 	move	a0, sp
 	jal	syscall_trace_leave
 	b	resume_userspace
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/genex.S linux-libre-4.9.52-gnu/arch/mips/kernel/genex.S
--- linux-libre-4.9-gnu/arch/mips/kernel/genex.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/genex.S	2017-09-27 08:40:05.000000000 -0400
@@ -187,9 +187,44 @@ NESTED(handle_int, PT_SIZE, sp)
 
 	LONG_L	s0, TI_REGS($28)
 	LONG_S	sp, TI_REGS($28)
-	PTR_LA	ra, ret_from_irq
-	PTR_LA	v0, plat_irq_dispatch
-	jr	v0
+
+	/*
+	 * SAVE_ALL ensures we are using a valid kernel stack for the thread.
+	 * Check if we are already using the IRQ stack.
+	 */
+	move	s1, sp # Preserve the sp
+
+	/* Get IRQ stack for this CPU */
+	ASM_CPUID_MFC0	k0, ASM_SMP_CPUID_REG
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
+	lui	k1, %hi(irq_stack)
+#else
+	lui	k1, %highest(irq_stack)
+	daddiu	k1, %higher(irq_stack)
+	dsll	k1, 16
+	daddiu	k1, %hi(irq_stack)
+	dsll	k1, 16
+#endif
+	LONG_SRL	k0, SMP_CPUID_PTRSHIFT
+	LONG_ADDU	k1, k0
+	LONG_L	t0, %lo(irq_stack)(k1)
+
+	# Check if already on IRQ stack
+	PTR_LI	t1, ~(_THREAD_SIZE-1)
+	and	t1, t1, sp
+	beq	t0, t1, 2f
+
+	/* Switch to IRQ stack */
+	li	t1, _IRQ_STACK_SIZE
+	PTR_ADD sp, t0, t1
+
+2:
+	jal	plat_irq_dispatch
+
+	/* Restore sp */
+	move	sp, s1
+
+	j	ret_from_irq
 #ifdef CONFIG_CPU_MICROMIPS
 	nop
 #endif
@@ -262,8 +297,44 @@ NESTED(except_vec_vi_handler, 0, sp)
 
 	LONG_L	s0, TI_REGS($28)
 	LONG_S	sp, TI_REGS($28)
-	PTR_LA	ra, ret_from_irq
-	jr	v0
+
+	/*
+	 * SAVE_ALL ensures we are using a valid kernel stack for the thread.
+	 * Check if we are already using the IRQ stack.
+	 */
+	move	s1, sp # Preserve the sp
+
+	/* Get IRQ stack for this CPU */
+	ASM_CPUID_MFC0	k0, ASM_SMP_CPUID_REG
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
+	lui	k1, %hi(irq_stack)
+#else
+	lui	k1, %highest(irq_stack)
+	daddiu	k1, %higher(irq_stack)
+	dsll	k1, 16
+	daddiu	k1, %hi(irq_stack)
+	dsll	k1, 16
+#endif
+	LONG_SRL	k0, SMP_CPUID_PTRSHIFT
+	LONG_ADDU	k1, k0
+	LONG_L	t0, %lo(irq_stack)(k1)
+
+	# Check if already on IRQ stack
+	PTR_LI	t1, ~(_THREAD_SIZE-1)
+	and	t1, t1, sp
+	beq	t0, t1, 2f
+
+	/* Switch to IRQ stack */
+	li	t1, _IRQ_STACK_SIZE
+	PTR_ADD sp, t0, t1
+
+2:
+	jalr	v0
+
+	/* Restore sp */
+	move	sp, s1
+
+	j	ret_from_irq
 	END(except_vec_vi_handler)
 
 /*
@@ -448,7 +519,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	BUILD_HANDLER reserved reserved sti verbose	/* others */
 
 	.align	5
-	LEAF(handle_ri_rdhwr_vivt)
+	LEAF(handle_ri_rdhwr_tlbp)
 	.set	push
 	.set	noat
 	.set	noreorder
@@ -467,7 +538,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	.set	pop
 	bltz	k1, handle_ri	/* slow path */
 	/* fall thru */
-	END(handle_ri_rdhwr_vivt)
+	END(handle_ri_rdhwr_tlbp)
 
 	LEAF(handle_ri_rdhwr)
 	.set	push
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/head.S linux-libre-4.9.52-gnu/arch/mips/kernel/head.S
--- linux-libre-4.9-gnu/arch/mips/kernel/head.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/head.S	2017-09-27 08:40:05.000000000 -0400
@@ -106,8 +106,8 @@ NESTED(kernel_entry, 16, sp)			# kernel
 	beq		t0, t1, dtb_found
 #endif
 	li		t1, -2
-	beq		a0, t1, dtb_found
 	move		t2, a1
+	beq		a0, t1, dtb_found
 
 	li		t2, 0
 dtb_found:
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/irq.c linux-libre-4.9.52-gnu/arch/mips/kernel/irq.c
--- linux-libre-4.9-gnu/arch/mips/kernel/irq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/irq.c	2017-09-27 08:40:05.000000000 -0400
@@ -25,6 +25,8 @@
 #include <linux/atomic.h>
 #include <asm/uaccess.h>
 
+void *irq_stack[NR_CPUS];
+
 /*
  * 'what should we do if we get a hw irq event on an illegal vector'.
  * each architecture has to answer this themselves.
@@ -58,6 +60,15 @@ void __init init_IRQ(void)
 		clear_c0_status(ST0_IM);
 
 	arch_init_irq();
+
+	for_each_possible_cpu(i) {
+		int irq_pages = IRQ_STACK_SIZE / PAGE_SIZE;
+		void *s = (void *)__get_free_pages(GFP_KERNEL, irq_pages);
+
+		irq_stack[i] = s;
+		pr_debug("CPU%d IRQ stack at 0x%p - 0x%p\n", i,
+			irq_stack[i], irq_stack[i] + IRQ_STACK_SIZE);
+	}
 }
 
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/kgdb.c linux-libre-4.9.52-gnu/arch/mips/kernel/kgdb.c
--- linux-libre-4.9-gnu/arch/mips/kernel/kgdb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/kgdb.c	2017-09-27 08:40:05.000000000 -0400
@@ -244,9 +244,6 @@ static int compute_signal(int tt)
 void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
 {
 	int reg;
-	struct thread_info *ti = task_thread_info(p);
-	unsigned long ksp = (unsigned long)ti + THREAD_SIZE - 32;
-	struct pt_regs *regs = (struct pt_regs *)ksp - 1;
 #if (KGDB_GDB_REG_SIZE == 32)
 	u32 *ptr = (u32 *)gdb_regs;
 #else
@@ -254,25 +251,46 @@ void sleeping_thread_to_gdb_regs(unsigne
 #endif
 
 	for (reg = 0; reg < 16; reg++)
-		*(ptr++) = regs->regs[reg];
+		*(ptr++) = 0;
 
 	/* S0 - S7 */
-	for (reg = 16; reg < 24; reg++)
-		*(ptr++) = regs->regs[reg];
+	*(ptr++) = p->thread.reg16;
+	*(ptr++) = p->thread.reg17;
+	*(ptr++) = p->thread.reg18;
+	*(ptr++) = p->thread.reg19;
+	*(ptr++) = p->thread.reg20;
+	*(ptr++) = p->thread.reg21;
+	*(ptr++) = p->thread.reg22;
+	*(ptr++) = p->thread.reg23;
 
 	for (reg = 24; reg < 28; reg++)
 		*(ptr++) = 0;
 
 	/* GP, SP, FP, RA */
-	for (reg = 28; reg < 32; reg++)
-		*(ptr++) = regs->regs[reg];
+	*(ptr++) = (long)p;
+	*(ptr++) = p->thread.reg29;
+	*(ptr++) = p->thread.reg30;
+	*(ptr++) = p->thread.reg31;
 
-	*(ptr++) = regs->cp0_status;
-	*(ptr++) = regs->lo;
-	*(ptr++) = regs->hi;
-	*(ptr++) = regs->cp0_badvaddr;
-	*(ptr++) = regs->cp0_cause;
-	*(ptr++) = regs->cp0_epc;
+	*(ptr++) = p->thread.cp0_status;
+
+	/* lo, hi */
+	*(ptr++) = 0;
+	*(ptr++) = 0;
+
+	/*
+	 * BadVAddr, Cause
+	 * Ideally these would come from the last exception frame up the stack
+	 * but that requires unwinding, otherwise we can't know much for sure.
+	 */
+	*(ptr++) = 0;
+	*(ptr++) = 0;
+
+	/*
+	 * PC
+	 * use return address (RA), i.e. the moment after return from resume()
+	 */
+	*(ptr++) = p->thread.reg31;
 }
 
 void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c linux-libre-4.9.52-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c
--- linux-libre-4.9-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/mips-r2-to-r6-emul.c	2017-09-27 08:40:05.000000000 -0400
@@ -433,8 +433,8 @@ static int multu_func(struct pt_regs *re
 	rs = regs->regs[MIPSInst_RS(ir)];
 	res = (u64)rt * (u64)rs;
 	rt = res;
-	regs->lo = (s64)rt;
-	regs->hi = (s64)(res >> 32);
+	regs->lo = (s64)(s32)rt;
+	regs->hi = (s64)(s32)(res >> 32);
 
 	MIPS_R2_STATS(muls);
 
@@ -670,9 +670,9 @@ static int maddu_func(struct pt_regs *re
 	res += ((((s64)rt) << 32) | (u32)rs);
 
 	rt = res;
-	regs->lo = (s64)rt;
+	regs->lo = (s64)(s32)rt;
 	rs = res >> 32;
-	regs->hi = (s64)rs;
+	regs->hi = (s64)(s32)rs;
 
 	MIPS_R2_STATS(dsps);
 
@@ -728,9 +728,9 @@ static int msubu_func(struct pt_regs *re
 	res = ((((s64)rt) << 32) | (u32)rs) - res;
 
 	rt = res;
-	regs->lo = (s64)rt;
+	regs->lo = (s64)(s32)rt;
 	rs = res >> 32;
-	regs->hi = (s64)rs;
+	regs->hi = (s64)(s32)rs;
 
 	MIPS_R2_STATS(dsps);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/pm-cps.c linux-libre-4.9.52-gnu/arch/mips/kernel/pm-cps.c
--- linux-libre-4.9-gnu/arch/mips/kernel/pm-cps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/pm-cps.c	2017-09-27 08:40:05.000000000 -0400
@@ -56,7 +56,6 @@ DECLARE_BITMAP(state_support, CPS_PM_STA
  * state. Actually per-core rather than per-CPU.
  */
 static DEFINE_PER_CPU_ALIGNED(u32*, ready_count);
-static DEFINE_PER_CPU_ALIGNED(void*, ready_count_alloc);
 
 /* Indicates online CPUs coupled with the current CPU */
 static DEFINE_PER_CPU_ALIGNED(cpumask_t, online_coupled);
@@ -642,7 +641,6 @@ static int cps_pm_online_cpu(unsigned in
 {
 	enum cps_pm_state state;
 	unsigned core = cpu_data[cpu].core;
-	unsigned dlinesz = cpu_data[cpu].dcache.linesz;
 	void *entry_fn, *core_rc;
 
 	for (state = CPS_PM_NC_WAIT; state < CPS_PM_STATE_COUNT; state++) {
@@ -662,16 +660,11 @@ static int cps_pm_online_cpu(unsigned in
 	}
 
 	if (!per_cpu(ready_count, core)) {
-		core_rc = kmalloc(dlinesz * 2, GFP_KERNEL);
+		core_rc = kmalloc(sizeof(u32), GFP_KERNEL);
 		if (!core_rc) {
 			pr_err("Failed allocate core %u ready_count\n", core);
 			return -ENOMEM;
 		}
-		per_cpu(ready_count_alloc, core) = core_rc;
-
-		/* Ensure ready_count is aligned to a cacheline boundary */
-		core_rc += dlinesz - 1;
-		core_rc = (void *)((unsigned long)core_rc & ~(dlinesz - 1));
 		per_cpu(ready_count, core) = core_rc;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/proc.c linux-libre-4.9.52-gnu/arch/mips/kernel/proc.c
--- linux-libre-4.9-gnu/arch/mips/kernel/proc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/proc.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,7 +83,7 @@ static int show_cpuinfo(struct seq_file
 	}
 
 	seq_printf(m, "isa\t\t\t:"); 
-	if (cpu_has_mips_r1)
+	if (cpu_has_mips_1)
 		seq_printf(m, " mips1");
 	if (cpu_has_mips_2)
 		seq_printf(m, "%s", " mips2");
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/process.c linux-libre-4.9.52-gnu/arch/mips/kernel/process.c
--- linux-libre-4.9-gnu/arch/mips/kernel/process.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/process.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,6 +33,7 @@
 #include <asm/dsemul.h>
 #include <asm/dsp.h>
 #include <asm/fpu.h>
+#include <asm/irq.h>
 #include <asm/msa.h>
 #include <asm/pgtable.h>
 #include <asm/mipsregs.h>
@@ -195,11 +196,9 @@ struct mips_frame_info {
 #define J_TARGET(pc,target)	\
 		(((unsigned long)(pc) & 0xf0000000) | ((target) << 2))
 
-static inline int is_ra_save_ins(union mips_instruction *ip)
+static inline int is_ra_save_ins(union mips_instruction *ip, int *poff)
 {
 #ifdef CONFIG_CPU_MICROMIPS
-	union mips_instruction mmi;
-
 	/*
 	 * swsp ra,offset
 	 * swm16 reglist,offset(sp)
@@ -209,29 +208,71 @@ static inline int is_ra_save_ins(union m
 	 *
 	 * microMIPS is way more fun...
 	 */
-	if (mm_insn_16bit(ip->halfword[0])) {
-		mmi.word = (ip->halfword[0] << 16);
-		return (mmi.mm16_r5_format.opcode == mm_swsp16_op &&
-			mmi.mm16_r5_format.rt == 31) ||
-		       (mmi.mm16_m_format.opcode == mm_pool16c_op &&
-			mmi.mm16_m_format.func == mm_swm16_op);
+	if (mm_insn_16bit(ip->halfword[1])) {
+		switch (ip->mm16_r5_format.opcode) {
+		case mm_swsp16_op:
+			if (ip->mm16_r5_format.rt != 31)
+				return 0;
+
+			*poff = ip->mm16_r5_format.simmediate;
+			*poff = (*poff << 2) / sizeof(ulong);
+			return 1;
+
+		case mm_pool16c_op:
+			switch (ip->mm16_m_format.func) {
+			case mm_swm16_op:
+				*poff = ip->mm16_m_format.imm;
+				*poff += 1 + ip->mm16_m_format.rlist;
+				*poff = (*poff << 2) / sizeof(ulong);
+				return 1;
+
+			default:
+				return 0;
+			}
+
+		default:
+			return 0;
+		}
 	}
-	else {
-		mmi.halfword[0] = ip->halfword[1];
-		mmi.halfword[1] = ip->halfword[0];
-		return (mmi.mm_m_format.opcode == mm_pool32b_op &&
-			mmi.mm_m_format.rd > 9 &&
-			mmi.mm_m_format.base == 29 &&
-			mmi.mm_m_format.func == mm_swm32_func) ||
-		       (mmi.i_format.opcode == mm_sw32_op &&
-			mmi.i_format.rs == 29 &&
-			mmi.i_format.rt == 31);
+
+	switch (ip->i_format.opcode) {
+	case mm_sw32_op:
+		if (ip->i_format.rs != 29)
+			return 0;
+		if (ip->i_format.rt != 31)
+			return 0;
+
+		*poff = ip->i_format.simmediate / sizeof(ulong);
+		return 1;
+
+	case mm_pool32b_op:
+		switch (ip->mm_m_format.func) {
+		case mm_swm32_func:
+			if (ip->mm_m_format.rd < 0x10)
+				return 0;
+			if (ip->mm_m_format.base != 29)
+				return 0;
+
+			*poff = ip->mm_m_format.simmediate;
+			*poff += (ip->mm_m_format.rd & 0xf) * sizeof(u32);
+			*poff /= sizeof(ulong);
+			return 1;
+		default:
+			return 0;
+		}
+
+	default:
+		return 0;
 	}
 #else
 	/* sw / sd $ra, offset($sp) */
-	return (ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op) &&
-		ip->i_format.rs == 29 &&
-		ip->i_format.rt == 31;
+	if ((ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op) &&
+		ip->i_format.rs == 29 && ip->i_format.rt == 31) {
+		*poff = ip->i_format.simmediate / sizeof(ulong);
+		return 1;
+	}
+
+	return 0;
 #endif
 }
 
@@ -246,13 +287,16 @@ static inline int is_jump_ins(union mips
 	 *
 	 * microMIPS is kind of more fun...
 	 */
-	union mips_instruction mmi;
-
-	mmi.word = (ip->halfword[0] << 16);
+	if (mm_insn_16bit(ip->halfword[1])) {
+		if ((ip->mm16_r5_format.opcode == mm_pool16c_op &&
+		    (ip->mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op))
+			return 1;
+		return 0;
+	}
 
-	if ((mmi.mm16_r5_format.opcode == mm_pool16c_op &&
-	    (mmi.mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op) ||
-	    ip->j_format.opcode == mm_jal32_op)
+	if (ip->j_format.opcode == mm_j32_op)
+		return 1;
+	if (ip->j_format.opcode == mm_jal32_op)
 		return 1;
 	if (ip->r_format.opcode != mm_pool32a_op ||
 			ip->r_format.func != mm_pool32axf_op)
@@ -280,15 +324,13 @@ static inline int is_sp_move_ins(union m
 	 *
 	 * microMIPS is not more fun...
 	 */
-	if (mm_insn_16bit(ip->halfword[0])) {
-		union mips_instruction mmi;
-
-		mmi.word = (ip->halfword[0] << 16);
-		return (mmi.mm16_r3_format.opcode == mm_pool16d_op &&
-			mmi.mm16_r3_format.simmediate && mm_addiusp_func) ||
-		       (mmi.mm16_r5_format.opcode == mm_pool16d_op &&
-			mmi.mm16_r5_format.rt == 29);
+	if (mm_insn_16bit(ip->halfword[1])) {
+		return (ip->mm16_r3_format.opcode == mm_pool16d_op &&
+			ip->mm16_r3_format.simmediate && mm_addiusp_func) ||
+		       (ip->mm16_r5_format.opcode == mm_pool16d_op &&
+			ip->mm16_r5_format.rt == 29);
 	}
+
 	return ip->mm_i_format.opcode == mm_addiu32_op &&
 	       ip->mm_i_format.rt == 29 && ip->mm_i_format.rs == 29;
 #else
@@ -303,30 +345,36 @@ static inline int is_sp_move_ins(union m
 
 static int get_frame_info(struct mips_frame_info *info)
 {
-#ifdef CONFIG_CPU_MICROMIPS
-	union mips_instruction *ip = (void *) (((char *) info->func) - 1);
-#else
-	union mips_instruction *ip = info->func;
-#endif
-	unsigned max_insns = info->func_size / sizeof(union mips_instruction);
-	unsigned i;
+	bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
+	union mips_instruction insn, *ip, *ip_end;
+	const unsigned int max_insns = 128;
+	unsigned int i;
 
 	info->pc_offset = -1;
 	info->frame_size = 0;
 
+	ip = (void *)msk_isa16_mode((ulong)info->func);
 	if (!ip)
 		goto err;
 
-	if (max_insns == 0)
-		max_insns = 128U;	/* unknown function size */
-	max_insns = min(128U, max_insns);
+	ip_end = (void *)ip + info->func_size;
 
-	for (i = 0; i < max_insns; i++, ip++) {
+	for (i = 0; i < max_insns && ip < ip_end; i++, ip++) {
+		if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
+			insn.halfword[0] = 0;
+			insn.halfword[1] = ip->halfword[0];
+		} else if (is_mmips) {
+			insn.halfword[0] = ip->halfword[1];
+			insn.halfword[1] = ip->halfword[0];
+		} else {
+			insn.word = ip->word;
+		}
 
-		if (is_jump_ins(ip))
+		if (is_jump_ins(&insn))
 			break;
+
 		if (!info->frame_size) {
-			if (is_sp_move_ins(ip))
+			if (is_sp_move_ins(&insn))
 			{
 #ifdef CONFIG_CPU_MICROMIPS
 				if (mm_insn_16bit(ip->halfword[0]))
@@ -349,11 +397,9 @@ static int get_frame_info(struct mips_fr
 			}
 			continue;
 		}
-		if (info->pc_offset == -1 && is_ra_save_ins(ip)) {
-			info->pc_offset =
-				ip->i_format.simmediate / sizeof(long);
+		if (info->pc_offset == -1 &&
+		    is_ra_save_ins(&insn, &info->pc_offset))
 			break;
-		}
 	}
 	if (info->frame_size && info->pc_offset >= 0) /* nested */
 		return 0;
@@ -511,7 +557,19 @@ EXPORT_SYMBOL(unwind_stack_by_address);
 unsigned long unwind_stack(struct task_struct *task, unsigned long *sp,
 			   unsigned long pc, unsigned long *ra)
 {
-	unsigned long stack_page = (unsigned long)task_stack_page(task);
+	unsigned long stack_page = 0;
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		if (on_irq_stack(cpu, *sp)) {
+			stack_page = (unsigned long)irq_stack[cpu];
+			break;
+		}
+	}
+
+	if (!stack_page)
+		stack_page = (unsigned long)task_stack_page(task);
+
 	return unwind_stack_by_address(stack_page, sp, pc, ra);
 }
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/ptrace32.c linux-libre-4.9.52-gnu/arch/mips/kernel/ptrace32.c
--- linux-libre-4.9-gnu/arch/mips/kernel/ptrace32.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/ptrace32.c	2017-09-27 08:40:05.000000000 -0400
@@ -69,7 +69,7 @@ long compat_arch_ptrace(struct task_stru
 		if (get_user(addrOthers, (u32 __user * __user *) (unsigned long) addr) != 0)
 			break;
 
-		copied = access_process_vm(child, (u64)addrOthers, &tmp,
+		copied = ptrace_access_vm(child, (u64)addrOthers, &tmp,
 				sizeof(tmp), FOLL_FORCE);
 		if (copied != sizeof(tmp))
 			break;
@@ -178,7 +178,7 @@ long compat_arch_ptrace(struct task_stru
 		if (get_user(addrOthers, (u32 __user * __user *) (unsigned long) addr) != 0)
 			break;
 		ret = 0;
-		if (access_process_vm(child, (u64)addrOthers, &data,
+		if (ptrace_access_vm(child, (u64)addrOthers, &data,
 					sizeof(data),
 					FOLL_FORCE | FOLL_WRITE) == sizeof(data))
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/mips/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/mips/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -485,7 +485,8 @@ static int fpr_set(struct task_struct *t
 					  &target->thread.fpu,
 					  0, sizeof(elf_fpregset_t));
 
-	for (i = 0; i < NUM_FPU_REGS; i++) {
+	BUILD_BUG_ON(sizeof(fpr_val) != sizeof(elf_fpreg_t));
+	for (i = 0; i < NUM_FPU_REGS && count >= sizeof(elf_fpreg_t); i++) {
 		err = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 					 &fpr_val, i * sizeof(elf_fpreg_t),
 					 (i + 1) * sizeof(elf_fpreg_t));
@@ -923,7 +924,7 @@ asmlinkage void syscall_trace_leave(stru
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
-		trace_sys_exit(regs, regs->regs[2]);
+		trace_sys_exit(regs, regs_return_value(regs));
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/scall32-o32.S linux-libre-4.9.52-gnu/arch/mips/kernel/scall32-o32.S
--- linux-libre-4.9-gnu/arch/mips/kernel/scall32-o32.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/scall32-o32.S	2017-09-27 08:40:05.000000000 -0400
@@ -371,7 +371,7 @@ EXPORT(sys_call_table)
 	PTR	sys_writev
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_ni_syscall			/* 4150 */
 	PTR	sys_getsid
 	PTR	sys_fdatasync
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/scall64-64.S linux-libre-4.9.52-gnu/arch/mips/kernel/scall64-64.S
--- linux-libre-4.9-gnu/arch/mips/kernel/scall64-64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/scall64-64.S	2017-09-27 08:40:05.000000000 -0400
@@ -311,7 +311,7 @@ EXPORT(sys_call_table)
 	PTR	sys_sched_getaffinity
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_io_setup			/* 5200 */
 	PTR	sys_io_destroy
 	PTR	sys_io_getevents
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/scall64-n32.S linux-libre-4.9.52-gnu/arch/mips/kernel/scall64-n32.S
--- linux-libre-4.9-gnu/arch/mips/kernel/scall64-n32.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/scall64-n32.S	2017-09-27 08:40:05.000000000 -0400
@@ -302,7 +302,7 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_sched_getaffinity
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	compat_sys_io_setup			/* 6200 */
 	PTR	sys_io_destroy
 	PTR	compat_sys_io_getevents
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/scall64-o32.S linux-libre-4.9.52-gnu/arch/mips/kernel/scall64-o32.S
--- linux-libre-4.9-gnu/arch/mips/kernel/scall64-o32.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/scall64-o32.S	2017-09-27 08:40:05.000000000 -0400
@@ -371,7 +371,7 @@ EXPORT(sys32_call_table)
 	PTR	compat_sys_writev
 	PTR	sys_cacheflush
 	PTR	sys_cachectl
-	PTR	sys_sysmips
+	PTR	__sys_sysmips
 	PTR	sys_ni_syscall			/* 4150 */
 	PTR	sys_getsid
 	PTR	sys_fdatasync
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/syscall.c linux-libre-4.9.52-gnu/arch/mips/kernel/syscall.c
--- linux-libre-4.9-gnu/arch/mips/kernel/syscall.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/syscall.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,6 +28,7 @@
 #include <linux/elf.h>
 
 #include <asm/asm.h>
+#include <asm/asm-eva.h>
 #include <asm/branch.h>
 #include <asm/cachectl.h>
 #include <asm/cacheflush.h>
@@ -138,10 +139,12 @@ static inline int mips_atomic_set(unsign
 		__asm__ __volatile__ (
 		"	.set	"MIPS_ISA_ARCH_LEVEL"			\n"
 		"	li	%[err], 0				\n"
-		"1:	ll	%[old], (%[addr])			\n"
+		"1:							\n"
+		user_ll("%[old]", "(%[addr])")
 		"	move	%[tmp], %[new]				\n"
-		"2:	sc	%[tmp], (%[addr])			\n"
-		"	bnez	%[tmp], 4f				\n"
+		"2:							\n"
+		user_sc("%[tmp]", "(%[addr])")
+		"	beqz	%[tmp], 4f				\n"
 		"3:							\n"
 		"	.insn						\n"
 		"	.subsection 2					\n"
@@ -199,6 +202,12 @@ static inline int mips_atomic_set(unsign
 	unreachable();
 }
 
+/*
+ * mips_atomic_set() normally returns directly via syscall_exit potentially
+ * clobbering static registers, so be sure to preserve them.
+ */
+save_static_function(sys_sysmips);
+
 SYSCALL_DEFINE3(sysmips, long, cmd, long, arg1, long, arg2)
 {
 	switch (cmd) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kernel/traps.c linux-libre-4.9.52-gnu/arch/mips/kernel/traps.c
--- linux-libre-4.9-gnu/arch/mips/kernel/traps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kernel/traps.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,7 +81,7 @@ extern asmlinkage void handle_dbe(void);
 extern asmlinkage void handle_sys(void);
 extern asmlinkage void handle_bp(void);
 extern asmlinkage void handle_ri(void);
-extern asmlinkage void handle_ri_rdhwr_vivt(void);
+extern asmlinkage void handle_ri_rdhwr_tlbp(void);
 extern asmlinkage void handle_ri_rdhwr(void);
 extern asmlinkage void handle_cpu(void);
 extern asmlinkage void handle_ov(void);
@@ -199,6 +199,8 @@ void show_stack(struct task_struct *task
 {
 	struct pt_regs regs;
 	mm_segment_t old_fs = get_fs();
+
+	regs.cp0_status = KSU_KERNEL;
 	if (sp) {
 		regs.regs[29] = (unsigned long)sp;
 		regs.regs[31] = 0;
@@ -2352,9 +2354,18 @@ void __init trap_init(void)
 
 	set_except_vector(EXCCODE_SYS, handle_sys);
 	set_except_vector(EXCCODE_BP, handle_bp);
-	set_except_vector(EXCCODE_RI, rdhwr_noopt ? handle_ri :
-			  (cpu_has_vtag_icache ?
-			   handle_ri_rdhwr_vivt : handle_ri_rdhwr));
+
+	if (rdhwr_noopt)
+		set_except_vector(EXCCODE_RI, handle_ri);
+	else {
+		if (cpu_has_vtag_icache)
+			set_except_vector(EXCCODE_RI, handle_ri_rdhwr_tlbp);
+		else if (current_cpu_type() == CPU_LOONGSON3)
+			set_except_vector(EXCCODE_RI, handle_ri_rdhwr_tlbp);
+		else
+			set_except_vector(EXCCODE_RI, handle_ri_rdhwr);
+	}
+
 	set_except_vector(EXCCODE_CPU, handle_cpu);
 	set_except_vector(EXCCODE_OV, handle_ov);
 	set_except_vector(EXCCODE_TR, handle_tr);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kvm/entry.c linux-libre-4.9.52-gnu/arch/mips/kvm/entry.c
--- linux-libre-4.9-gnu/arch/mips/kvm/entry.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kvm/entry.c	2017-09-27 08:40:05.000000000 -0400
@@ -521,6 +521,9 @@ void *kvm_mips_build_exit(void *addr)
 	uasm_i_and(&p, V0, V0, AT);
 	uasm_i_lui(&p, AT, ST0_CU0 >> 16);
 	uasm_i_or(&p, V0, V0, AT);
+#ifdef CONFIG_64BIT
+	uasm_i_ori(&p, V0, V0, ST0_SX | ST0_UX);
+#endif
 	uasm_i_mtc0(&p, V0, C0_STATUS);
 	uasm_i_ehb(&p);
 
@@ -643,7 +646,7 @@ static void *kvm_mips_build_ret_to_guest
 
 	/* Setup status register for running guest in UM */
 	uasm_i_ori(&p, V1, V1, ST0_EXL | KSU_USER | ST0_IE);
-	UASM_i_LA(&p, AT, ~(ST0_CU0 | ST0_MX));
+	UASM_i_LA(&p, AT, ~(ST0_CU0 | ST0_MX | ST0_SX | ST0_UX));
 	uasm_i_and(&p, V1, V1, AT);
 	uasm_i_mtc0(&p, V1, C0_STATUS);
 	uasm_i_ehb(&p);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/kvm/mips.c linux-libre-4.9.52-gnu/arch/mips/kvm/mips.c
--- linux-libre-4.9-gnu/arch/mips/kvm/mips.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/kvm/mips.c	2017-09-27 08:40:05.000000000 -0400
@@ -360,8 +360,8 @@ struct kvm_vcpu *kvm_arch_vcpu_create(st
 	dump_handler("kvm_exit", gebase + 0x2000, vcpu->arch.vcpu_run);
 
 	/* Invalidate the icache for these ranges */
-	local_flush_icache_range((unsigned long)gebase,
-				(unsigned long)gebase + ALIGN(size, PAGE_SIZE));
+	flush_icache_range((unsigned long)gebase,
+			   (unsigned long)gebase + ALIGN(size, PAGE_SIZE));
 
 	/*
 	 * Allocate comm page for guest kernel, a TLB will be reserved for
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/lantiq/xway/sysctrl.c linux-libre-4.9.52-gnu/arch/mips/lantiq/xway/sysctrl.c
--- linux-libre-4.9-gnu/arch/mips/lantiq/xway/sysctrl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/lantiq/xway/sysctrl.c	2017-09-27 08:40:05.000000000 -0400
@@ -467,7 +467,7 @@ void __init ltq_soc_init(void)
 
 		if (!np_xbar)
 			panic("Failed to load xbar nodes from devicetree");
-		if (of_address_to_resource(np_pmu, 0, &res_xbar))
+		if (of_address_to_resource(np_xbar, 0, &res_xbar))
 			panic("Failed to get xbar resources");
 		if (request_mem_region(res_xbar.start, resource_size(&res_xbar),
 			res_xbar.name) < 0)
@@ -545,7 +545,7 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
 		clkdev_add_pmu("1a800000.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
 		clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
-		clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH | PMU_PPE_DP);
+		clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
 	} else if (of_machine_is_compatible("lantiq,ar10")) {
@@ -553,7 +553,7 @@ void __init ltq_soc_init(void)
 				  ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
 		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
 		clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
-		clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH |
+		clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH |
 			       PMU_PPE_DP | PMU_PPE_TC);
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
 		clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
@@ -575,11 +575,11 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
 
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
-		clkdev_add_pmu("1e108000.eth", NULL, 1, 0,
+		clkdev_add_pmu("1e108000.eth", NULL, 0, 0,
 				PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
 				PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
 				PMU_PPE_QSB | PMU_PPE_TOP);
-		clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
+		clkdev_add_pmu("1f203000.rcu", "gphy", 0, 0, PMU_GPHY);
 		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
 		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/cp1emu.c linux-libre-4.9.52-gnu/arch/mips/math-emu/cp1emu.c
--- linux-libre-4.9-gnu/arch/mips/math-emu/cp1emu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/cp1emu.c	2017-09-27 08:40:05.000000000 -0400
@@ -2522,6 +2522,35 @@ dcopuop:
 	return 0;
 }
 
+/*
+ * Emulate FPU instructions.
+ *
+ * If we use FPU hardware, then we have been typically called to handle
+ * an unimplemented operation, such as where an operand is a NaN or
+ * denormalized.  In that case exit the emulation loop after a single
+ * iteration so as to let hardware execute any subsequent instructions.
+ *
+ * If we have no FPU hardware or it has been disabled, then continue
+ * emulating floating-point instructions until one of these conditions
+ * has occurred:
+ *
+ * - a non-FPU instruction has been encountered,
+ *
+ * - an attempt to emulate has ended with a signal,
+ *
+ * - the ISA mode has been switched.
+ *
+ * We need to terminate the emulation loop if we got switched to the
+ * MIPS16 mode, whether supported or not, so that we do not attempt
+ * to emulate a MIPS16 instruction as a regular MIPS FPU instruction.
+ * Similarly if we got switched to the microMIPS mode and only the
+ * regular MIPS mode is supported, so that we do not attempt to emulate
+ * a microMIPS instruction as a regular MIPS FPU instruction.  Or if
+ * we got switched to the regular MIPS mode and only the microMIPS mode
+ * is supported, so that we do not attempt to emulate a regular MIPS
+ * instruction that should cause an Address Error exception instead.
+ * For simplicity we always terminate upon an ISA mode switch.
+ */
 int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 	int has_fpu, void *__user *fault_addr)
 {
@@ -2607,6 +2636,15 @@ int fpu_emulator_cop1Handler(struct pt_r
 			break;
 		if (sig)
 			break;
+		/*
+		 * We have to check for the ISA bit explicitly here,
+		 * because `get_isa16_mode' may return 0 if support
+		 * for code compression has been globally disabled,
+		 * or otherwise we may produce the wrong signal or
+		 * even proceed successfully where we must not.
+		 */
+		if ((xcp->cp0_epc ^ prevepc) & 0x1)
+			break;
 
 		cond_resched();
 	} while (xcp->cp0_epc > prevepc);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/dp_fmax.c linux-libre-4.9.52-gnu/arch/mips/math-emu/dp_fmax.c
--- linux-libre-4.9-gnu/arch/mips/math-emu/dp_fmax.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/dp_fmax.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmax(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmax(union iee
 		return ys ? x : y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmax(union iee
 	else if (xs < ys)
 		return x;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return x;
-	else if (xe < ye)
-		return y;
+	/* Signs of inputs are equal, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return y;
+		return x;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return y;
-	return x;
+		return x;
+	return y;
 }
 
 union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754dp ieee754dp_fmaxa(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754dp_inf(xs & ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754dp ieee754dp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754dp ieee754dp_fmaxa(union ie
 		return y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmaxa(union ie
 		return y;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
 		return y;
-	return x;
+	else if (xm > ym)
+		return x;
+	else if (xs == 0)
+		return x;
+	return y;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/dp_fmin.c linux-libre-4.9.52-gnu/arch/mips/math-emu/dp_fmin.c
--- linux-libre-4.9-gnu/arch/mips/math-emu/dp_fmin.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/dp_fmin.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmin(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmin(union iee
 		return ys ? y : x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmin(union iee
 	else if (xs < ys)
 		return y;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return y;
-	else if (xe < ye)
-		return x;
+	/* Signs of inputs are the same, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return x;
+		return y;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return x;
-	return y;
+		return y;
+	return x;
 }
 
 union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmina(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754dp ieee754dp_fmina(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754dp_inf(xs | ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
-		return x;
+		return y;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
-		return y;
+		return x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmina(union ie
 		return x;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
+		return x;
+	else if (xm > ym)
+		return y;
+	else if (xs == 1)
 		return x;
 	return y;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/dp_maddf.c linux-libre-4.9.52-gnu/arch/mips/math-emu/dp_maddf.c
--- linux-libre-4.9-gnu/arch/mips/math-emu/dp_maddf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/dp_maddf.c	2017-09-27 08:40:05.000000000 -0400
@@ -14,22 +14,45 @@
 
 #include "ieee754dp.h"
 
-enum maddf_flags {
-	maddf_negate_product	= 1 << 0,
-};
+
+/* 128 bits shift right logical with rounding. */
+void srl128(u64 *hptr, u64 *lptr, int count)
+{
+	u64 low;
+
+	if (count >= 128) {
+		*lptr = *hptr != 0 || *lptr != 0;
+		*hptr = 0;
+	} else if (count >= 64) {
+		if (count == 64) {
+			*lptr = *hptr | (*lptr != 0);
+		} else {
+			low = *lptr;
+			*lptr = *hptr >> (count - 64);
+			*lptr |= (*hptr << (128 - count)) != 0 || low != 0;
+		}
+		*hptr = 0;
+	} else {
+		low = *lptr;
+		*lptr = low >> count | *hptr << (64 - count);
+		*lptr |= (low << (64 - count)) != 0;
+		*hptr = *hptr >> count;
+	}
+}
 
 static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 				 union ieee754dp y, enum maddf_flags flags)
 {
 	int re;
 	int rs;
-	u64 rm;
 	unsigned lxm;
 	unsigned hxm;
 	unsigned lym;
 	unsigned hym;
 	u64 lrm;
 	u64 hrm;
+	u64 lzm;
+	u64 hzm;
 	u64 t;
 	u64 at;
 	int s;
@@ -48,52 +71,34 @@ static union ieee754dp _dp_maddf(union i
 
 	ieee754_clearcx();
 
-	switch (zc) {
-	case IEEE754_CLASS_SNAN:
-		ieee754_setcx(IEEE754_INVALID_OPERATION);
+	/*
+	 * Handle the cases when at least one of x, y or z is a NaN.
+	 * Order of precedence is sNaN, qNaN and z, x, y.
+	 */
+	if (zc == IEEE754_CLASS_SNAN)
 		return ieee754dp_nanxcpt(z);
-	case IEEE754_CLASS_DNORM:
-		DPDNORMZ;
-	/* QNAN is handled separately below */
-	}
-
-	switch (CLPAIR(xc, yc)) {
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
-		return ieee754dp_nanxcpt(y);
-
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+	if (xc == IEEE754_CLASS_SNAN)
 		return ieee754dp_nanxcpt(x);
-
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+	if (yc == IEEE754_CLASS_SNAN)
+		return ieee754dp_nanxcpt(y);
+	if (zc == IEEE754_CLASS_QNAN)
+		return z;
+	if (xc == IEEE754_CLASS_QNAN)
+		return x;
+	if (yc == IEEE754_CLASS_QNAN)
 		return y;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
-		return x;
+	if (zc == IEEE754_CLASS_DNORM)
+		DPDNORMZ;
+	/* ZERO z cases are handled separately below */
 
+	switch (CLPAIR(xc, yc)) {
 
 	/*
 	 * Infinity handling
 	 */
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
 		ieee754_setcx(IEEE754_INVALID_OPERATION);
 		return ieee754dp_indef();
 
@@ -102,9 +107,27 @@ static union ieee754dp _dp_maddf(union i
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		return ieee754dp_inf(xs ^ ys);
+		if ((zc == IEEE754_CLASS_INF) &&
+		    ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) ||
+		     ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) {
+			/*
+			 * Cases of addition of infinities with opposite signs
+			 * or subtraction of infinities with same signs.
+			 */
+			ieee754_setcx(IEEE754_INVALID_OPERATION);
+			return ieee754dp_indef();
+		}
+		/*
+		 * z is here either not an infinity, or an infinity having the
+		 * same sign as product (x*y) (in case of MADDF.D instruction)
+		 * or product -(x*y) (in MSUBF.D case). The result must be an
+		 * infinity, and its sign is determined only by the value of
+		 * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y.
+		 */
+		if (flags & MADDF_NEGATE_PRODUCT)
+			return ieee754dp_inf(1 ^ (xs ^ ys));
+		else
+			return ieee754dp_inf(xs ^ ys);
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
@@ -113,32 +136,42 @@ static union ieee754dp _dp_maddf(union i
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
-		/* Multiplication is 0 so just return z */
+		if (zc == IEEE754_CLASS_ZERO) {
+			/* Handle cases +0 + (-0) and similar ones. */
+			if ((!(flags & MADDF_NEGATE_PRODUCT)
+					&& (zs == (xs ^ ys))) ||
+			    ((flags & MADDF_NEGATE_PRODUCT)
+					&& (zs != (xs ^ ys))))
+				/*
+				 * Cases of addition of zeros of equal signs
+				 * or subtraction of zeroes of opposite signs.
+				 * The sign of the resulting zero is in any
+				 * such case determined only by the sign of z.
+				 */
+				return z;
+
+			return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
+		}
+		/* x*y is here 0, and z is not 0, so just return z */
 		return z;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
 		DPDNORMY;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
 		DPDNORMX;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
 		/* fall through to real computations */
 	}
@@ -157,7 +190,7 @@ static union ieee754dp _dp_maddf(union i
 
 	re = xe + ye;
 	rs = xs ^ ys;
-	if (flags & maddf_negate_product)
+	if (flags & MADDF_NEGATE_PRODUCT)
 		rs ^= 1;
 
 	/* shunt to top of word */
@@ -165,7 +198,7 @@ static union ieee754dp _dp_maddf(union i
 	ym <<= 64 - (DP_FBITS + 1);
 
 	/*
-	 * Multiply 64 bits xm, ym to give high 64 bits rm with stickness.
+	 * Multiply 64 bits xm and ym to give 128 bits result in hrm:lrm.
 	 */
 
 	/* 32 * 32 => 64 */
@@ -195,78 +228,110 @@ static union ieee754dp _dp_maddf(union i
 
 	hrm = hrm + (t >> 32);
 
-	rm = hrm | (lrm != 0);
-
-	/*
-	 * Sticky shift down to normal rounding precision.
-	 */
-	if ((s64) rm < 0) {
-		rm = (rm >> (64 - (DP_FBITS + 1 + 3))) |
-		     ((rm << (DP_FBITS + 1 + 3)) != 0);
+	/* Put explicit bit at bit 126 if necessary */
+	if ((int64_t)hrm < 0) {
+		lrm = (hrm << 63) | (lrm >> 1);
+		hrm = hrm >> 1;
 		re++;
-	} else {
-		rm = (rm >> (64 - (DP_FBITS + 1 + 3 + 1))) |
-		     ((rm << (DP_FBITS + 1 + 3 + 1)) != 0);
 	}
-	assert(rm & (DP_HIDDEN_BIT << 3));
 
-	/* And now the addition */
-	assert(zm & DP_HIDDEN_BIT);
+	assert(hrm & (1 << 62));
 
-	/*
-	 * Provide guard,round and stick bit space.
-	 */
-	zm <<= 3;
+	if (zc == IEEE754_CLASS_ZERO) {
+		/*
+		 * Move explicit bit from bit 126 to bit 55 since the
+		 * ieee754dp_format code expects the mantissa to be
+		 * 56 bits wide (53 + 3 rounding bits).
+		 */
+		srl128(&hrm, &lrm, (126 - 55));
+		return ieee754dp_format(rs, re, lrm);
+	}
 
+	/* Move explicit bit from bit 52 to bit 126 */
+	lzm = 0;
+	hzm = zm << 10;
+	assert(hzm & (1 << 62));
+
+	/* Make the exponents the same */
 	if (ze > re) {
 		/*
 		 * Have to shift y fraction right to align.
 		 */
 		s = ze - re;
-		rm = XDPSRS(rm, s);
+		srl128(&hrm, &lrm, s);
 		re += s;
 	} else if (re > ze) {
 		/*
 		 * Have to shift x fraction right to align.
 		 */
 		s = re - ze;
-		zm = XDPSRS(zm, s);
+		srl128(&hzm, &lzm, s);
 		ze += s;
 	}
 	assert(ze == re);
 	assert(ze <= DP_EMAX);
 
+	/* Do the addition */
 	if (zs == rs) {
 		/*
-		 * Generate 28 bit result of adding two 27 bit numbers
-		 * leaving result in xm, xs and xe.
+		 * Generate 128 bit result by adding two 127 bit numbers
+		 * leaving result in hzm:lzm, zs and ze.
 		 */
-		zm = zm + rm;
-
-		if (zm >> (DP_FBITS + 1 + 3)) { /* carry out */
-			zm = XDPSRS1(zm);
+		hzm = hzm + hrm + (lzm > (lzm + lrm));
+		lzm = lzm + lrm;
+		if ((int64_t)hzm < 0) {        /* carry out */
+			srl128(&hzm, &lzm, 1);
 			ze++;
 		}
 	} else {
-		if (zm >= rm) {
-			zm = zm - rm;
+		if (hzm > hrm || (hzm == hrm && lzm >= lrm)) {
+			hzm = hzm - hrm - (lzm < lrm);
+			lzm = lzm - lrm;
 		} else {
-			zm = rm - zm;
+			hzm = hrm - hzm - (lrm < lzm);
+			lzm = lrm - lzm;
 			zs = rs;
 		}
-		if (zm == 0)
+		if (lzm == 0 && hzm == 0)
 			return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
 
 		/*
-		 * Normalize to rounding precision.
+		 * Put explicit bit at bit 126 if necessary.
 		 */
-		while ((zm >> (DP_FBITS + 3)) == 0) {
-			zm <<= 1;
-			ze--;
+		if (hzm == 0) {
+			/* left shift by 63 or 64 bits */
+			if ((int64_t)lzm < 0) {
+				/* MSB of lzm is the explicit bit */
+				hzm = lzm >> 1;
+				lzm = lzm << 63;
+				ze -= 63;
+			} else {
+				hzm = lzm;
+				lzm = 0;
+				ze -= 64;
+			}
+		}
+
+		t = 0;
+		while ((hzm >> (62 - t)) == 0)
+			t++;
+
+		assert(t <= 62);
+		if (t) {
+			hzm = hzm << t | lzm >> (64 - t);
+			lzm = lzm << t;
+			ze -= t;
 		}
 	}
 
-	return ieee754dp_format(zs, ze, zm);
+	/*
+	 * Move explicit bit from bit 126 to bit 55 since the
+	 * ieee754dp_format code expects the mantissa to be
+	 * 56 bits wide (53 + 3 rounding bits).
+	 */
+	srl128(&hzm, &lzm, (126 - 55));
+
+	return ieee754dp_format(zs, ze, lzm);
 }
 
 union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
@@ -278,5 +343,5 @@ union ieee754dp ieee754dp_maddf(union ie
 union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
 				union ieee754dp y)
 {
-	return _dp_maddf(z, x, y, maddf_negate_product);
+	return _dp_maddf(z, x, y, MADDF_NEGATE_PRODUCT);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/ieee754int.h linux-libre-4.9.52-gnu/arch/mips/math-emu/ieee754int.h
--- linux-libre-4.9-gnu/arch/mips/math-emu/ieee754int.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/ieee754int.h	2017-09-27 08:40:05.000000000 -0400
@@ -26,6 +26,10 @@
 
 #define CLPAIR(x, y)	((x)*6+(y))
 
+enum maddf_flags {
+	MADDF_NEGATE_PRODUCT	= 1 << 0,
+};
+
 static inline void ieee754_clearcx(void)
 {
 	ieee754_csr.cx = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/ieee754sp.h linux-libre-4.9.52-gnu/arch/mips/math-emu/ieee754sp.h
--- linux-libre-4.9-gnu/arch/mips/math-emu/ieee754sp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/ieee754sp.h	2017-09-27 08:40:05.000000000 -0400
@@ -45,6 +45,10 @@ static inline int ieee754sp_finite(union
 	return SPBEXP(x) != SP_EMAX + 1 + SP_EBIAS;
 }
 
+/* 64 bit right shift with rounding */
+#define XSPSRS64(v, rs)						\
+	(((rs) >= 64) ? ((v) != 0) : ((v) >> (rs)) | ((v) << (64-(rs)) != 0))
+
 /* 3bit extended single precision sticky right shift */
 #define XSPSRS(v, rs)						\
 	((rs > (SP_FBITS+3))?1:((v) >> (rs)) | ((v) << (32-(rs)) != 0))
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/sp_fmax.c linux-libre-4.9.52-gnu/arch/mips/math-emu/sp_fmax.c
--- linux-libre-4.9-gnu/arch/mips/math-emu/sp_fmax.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/sp_fmax.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmax(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmax(union iee
 		return ys ? x : y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmax(union iee
 	else if (xs < ys)
 		return x;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return x;
-	else if (xe < ye)
-		return y;
+	/* Signs of inputs are equal, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return y;
+		return x;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return y;
-	return x;
+		return x;
+	return y;
 }
 
 union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754sp ieee754sp_fmaxa(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754sp_inf(xs & ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754sp ieee754sp_fmaxa(union ie
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754sp ieee754sp_fmaxa(union ie
 		return y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmaxa(union ie
 		return y;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
 		return y;
-	return x;
+	else if (xm > ym)
+		return x;
+	else if (xs == 0)
+		return x;
+	return y;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/sp_fmin.c linux-libre-4.9.52-gnu/arch/mips/math-emu/sp_fmin.c
--- linux-libre-4.9-gnu/arch/mips/math-emu/sp_fmin.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/sp_fmin.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmin(union iee
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmin(union iee
 		return ys ? y : x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmin(union iee
 	else if (xs < ys)
 		return y;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return y;
-	else if (xe < ye)
-		return x;
+	/* Signs of inputs are the same, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return x;
+		return y;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return x;
-	return y;
+		return y;
+	return x;
 }
 
 union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmina(union ie
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754sp ieee754sp_fmina(union ie
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754sp_inf(xs | ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
-		return x;
+		return y;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
-		return y;
+		return x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmina(union ie
 		return x;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
+		return x;
+	else if (xm > ym)
+		return y;
+	else if (xs == 1)
 		return x;
 	return y;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/math-emu/sp_maddf.c linux-libre-4.9.52-gnu/arch/mips/math-emu/sp_maddf.c
--- linux-libre-4.9-gnu/arch/mips/math-emu/sp_maddf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/math-emu/sp_maddf.c	2017-09-27 08:40:05.000000000 -0400
@@ -14,9 +14,6 @@
 
 #include "ieee754sp.h"
 
-enum maddf_flags {
-	maddf_negate_product	= 1 << 0,
-};
 
 static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 				 union ieee754sp y, enum maddf_flags flags)
@@ -24,14 +21,8 @@ static union ieee754sp _sp_maddf(union i
 	int re;
 	int rs;
 	unsigned rm;
-	unsigned short lxm;
-	unsigned short hxm;
-	unsigned short lym;
-	unsigned short hym;
-	unsigned lrm;
-	unsigned hrm;
-	unsigned t;
-	unsigned at;
+	uint64_t rm64;
+	uint64_t zm64;
 	int s;
 
 	COMPXSP;
@@ -48,51 +39,35 @@ static union ieee754sp _sp_maddf(union i
 
 	ieee754_clearcx();
 
-	switch (zc) {
-	case IEEE754_CLASS_SNAN:
-		ieee754_setcx(IEEE754_INVALID_OPERATION);
+	/*
+	 * Handle the cases when at least one of x, y or z is a NaN.
+	 * Order of precedence is sNaN, qNaN and z, x, y.
+	 */
+	if (zc == IEEE754_CLASS_SNAN)
 		return ieee754sp_nanxcpt(z);
-	case IEEE754_CLASS_DNORM:
+	if (xc == IEEE754_CLASS_SNAN)
+		return ieee754sp_nanxcpt(x);
+	if (yc == IEEE754_CLASS_SNAN)
+		return ieee754sp_nanxcpt(y);
+	if (zc == IEEE754_CLASS_QNAN)
+		return z;
+	if (xc == IEEE754_CLASS_QNAN)
+		return x;
+	if (yc == IEEE754_CLASS_QNAN)
+		return y;
+
+	if (zc == IEEE754_CLASS_DNORM)
 		SPDNORMZ;
-	/* QNAN is handled separately below */
-	}
+	/* ZERO z cases are handled separately below */
 
 	switch (CLPAIR(xc, yc)) {
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
-		return ieee754sp_nanxcpt(y);
 
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
-		return ieee754sp_nanxcpt(x);
-
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
-		return y;
-
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
-		return x;
 
 	/*
 	 * Infinity handling
 	 */
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
 		ieee754_setcx(IEEE754_INVALID_OPERATION);
 		return ieee754sp_indef();
 
@@ -101,9 +76,27 @@ static union ieee754sp _sp_maddf(union i
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		return ieee754sp_inf(xs ^ ys);
+		if ((zc == IEEE754_CLASS_INF) &&
+		    ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) ||
+		     ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) {
+			/*
+			 * Cases of addition of infinities with opposite signs
+			 * or subtraction of infinities with same signs.
+			 */
+			ieee754_setcx(IEEE754_INVALID_OPERATION);
+			return ieee754sp_indef();
+		}
+		/*
+		 * z is here either not an infinity, or an infinity having the
+		 * same sign as product (x*y) (in case of MADDF.D instruction)
+		 * or product -(x*y) (in MSUBF.D case). The result must be an
+		 * infinity, and its sign is determined only by the value of
+		 * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y.
+		 */
+		if (flags & MADDF_NEGATE_PRODUCT)
+			return ieee754sp_inf(1 ^ (xs ^ ys));
+		else
+			return ieee754sp_inf(xs ^ ys);
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
@@ -112,32 +105,42 @@ static union ieee754sp _sp_maddf(union i
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
-		/* Multiplication is 0 so just return z */
+		if (zc == IEEE754_CLASS_ZERO) {
+			/* Handle cases +0 + (-0) and similar ones. */
+			if ((!(flags & MADDF_NEGATE_PRODUCT)
+					&& (zs == (xs ^ ys))) ||
+			    ((flags & MADDF_NEGATE_PRODUCT)
+					&& (zs != (xs ^ ys))))
+				/*
+				 * Cases of addition of zeros of equal signs
+				 * or subtraction of zeroes of opposite signs.
+				 * The sign of the resulting zero is in any
+				 * such case determined only by the sign of z.
+				 */
+				return z;
+
+			return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
+		}
+		/* x*y is here 0, and z is not 0, so just return z */
 		return z;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
 		SPDNORMY;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
 		SPDNORMX;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
 		/* fall through to real computations */
 	}
@@ -158,108 +161,93 @@ static union ieee754sp _sp_maddf(union i
 
 	re = xe + ye;
 	rs = xs ^ ys;
-	if (flags & maddf_negate_product)
+	if (flags & MADDF_NEGATE_PRODUCT)
 		rs ^= 1;
 
-	/* shunt to top of word */
-	xm <<= 32 - (SP_FBITS + 1);
-	ym <<= 32 - (SP_FBITS + 1);
-
-	/*
-	 * Multiply 32 bits xm, ym to give high 32 bits rm with stickness.
-	 */
-	lxm = xm & 0xffff;
-	hxm = xm >> 16;
-	lym = ym & 0xffff;
-	hym = ym >> 16;
-
-	lrm = lxm * lym;	/* 16 * 16 => 32 */
-	hrm = hxm * hym;	/* 16 * 16 => 32 */
-
-	t = lxm * hym; /* 16 * 16 => 32 */
-	at = lrm + (t << 16);
-	hrm += at < lrm;
-	lrm = at;
-	hrm = hrm + (t >> 16);
-
-	t = hxm * lym; /* 16 * 16 => 32 */
-	at = lrm + (t << 16);
-	hrm += at < lrm;
-	lrm = at;
-	hrm = hrm + (t >> 16);
+	/* Multiple 24 bit xm and ym to give 48 bit results */
+	rm64 = (uint64_t)xm * ym;
 
-	rm = hrm | (lrm != 0);
+	/* Shunt to top of word */
+	rm64 = rm64 << 16;
 
-	/*
-	 * Sticky shift down to normal rounding precision.
-	 */
-	if ((int) rm < 0) {
-		rm = (rm >> (32 - (SP_FBITS + 1 + 3))) |
-		    ((rm << (SP_FBITS + 1 + 3)) != 0);
+	/* Put explicit bit at bit 62 if necessary */
+	if ((int64_t) rm64 < 0) {
+		rm64 = rm64 >> 1;
 		re++;
-	} else {
-		rm = (rm >> (32 - (SP_FBITS + 1 + 3 + 1))) |
-		     ((rm << (SP_FBITS + 1 + 3 + 1)) != 0);
 	}
-	assert(rm & (SP_HIDDEN_BIT << 3));
 
-	/* And now the addition */
+	assert(rm64 & (1 << 62));
 
-	assert(zm & SP_HIDDEN_BIT);
+	if (zc == IEEE754_CLASS_ZERO) {
+		/*
+		 * Move explicit bit from bit 62 to bit 26 since the
+		 * ieee754sp_format code expects the mantissa to be
+		 * 27 bits wide (24 + 3 rounding bits).
+		 */
+		rm = XSPSRS64(rm64, (62 - 26));
+		return ieee754sp_format(rs, re, rm);
+	}
 
-	/*
-	 * Provide guard,round and stick bit space.
-	 */
-	zm <<= 3;
+	/* Move explicit bit from bit 23 to bit 62 */
+	zm64 = (uint64_t)zm << (62 - 23);
+	assert(zm64 & (1 << 62));
 
+	/* Make the exponents the same */
 	if (ze > re) {
 		/*
 		 * Have to shift r fraction right to align.
 		 */
 		s = ze - re;
-		rm = XSPSRS(rm, s);
+		rm64 = XSPSRS64(rm64, s);
 		re += s;
 	} else if (re > ze) {
 		/*
 		 * Have to shift z fraction right to align.
 		 */
 		s = re - ze;
-		zm = XSPSRS(zm, s);
+		zm64 = XSPSRS64(zm64, s);
 		ze += s;
 	}
 	assert(ze == re);
 	assert(ze <= SP_EMAX);
 
+	/* Do the addition */
 	if (zs == rs) {
 		/*
-		 * Generate 28 bit result of adding two 27 bit numbers
-		 * leaving result in zm, zs and ze.
+		 * Generate 64 bit result by adding two 63 bit numbers
+		 * leaving result in zm64, zs and ze.
 		 */
-		zm = zm + rm;
-
-		if (zm >> (SP_FBITS + 1 + 3)) { /* carry out */
-			zm = XSPSRS1(zm);
+		zm64 = zm64 + rm64;
+		if ((int64_t)zm64 < 0) {	/* carry out */
+			zm64 = XSPSRS1(zm64);
 			ze++;
 		}
 	} else {
-		if (zm >= rm) {
-			zm = zm - rm;
+		if (zm64 >= rm64) {
+			zm64 = zm64 - rm64;
 		} else {
-			zm = rm - zm;
+			zm64 = rm64 - zm64;
 			zs = rs;
 		}
-		if (zm == 0)
+		if (zm64 == 0)
 			return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
 
 		/*
-		 * Normalize in extended single precision
+		 * Put explicit bit at bit 62 if necessary.
 		 */
-		while ((zm >> (SP_MBITS + 3)) == 0) {
-			zm <<= 1;
+		while ((zm64 >> 62) == 0) {
+			zm64 <<= 1;
 			ze--;
 		}
-
 	}
+
+	/*
+	 * Move explicit bit from bit 62 to bit 26 since the
+	 * ieee754sp_format code expects the mantissa to be
+	 * 27 bits wide (24 + 3 rounding bits).
+	 */
+	zm = XSPSRS64(zm64, (62 - 26));
+
 	return ieee754sp_format(zs, ze, zm);
 }
 
@@ -272,5 +260,5 @@ union ieee754sp ieee754sp_maddf(union ie
 union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
 				union ieee754sp y)
 {
-	return _sp_maddf(z, x, y, maddf_negate_product);
+	return _sp_maddf(z, x, y, MADDF_NEGATE_PRODUCT);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/mm/c-r4k.c linux-libre-4.9.52-gnu/arch/mips/mm/c-r4k.c
--- linux-libre-4.9-gnu/arch/mips/mm/c-r4k.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/mm/c-r4k.c	2017-09-27 08:40:05.000000000 -0400
@@ -1558,6 +1558,7 @@ static void probe_vcache(void)
 	vcache_size = c->vcache.sets * c->vcache.ways * c->vcache.linesz;
 
 	c->vcache.waybit = 0;
+	c->vcache.waysize = vcache_size / c->vcache.ways;
 
 	pr_info("Unified victim cache %ldkB %s, linesize %d bytes.\n",
 		vcache_size >> 10, way_string[c->vcache.ways], c->vcache.linesz);
@@ -1660,6 +1661,7 @@ static void __init loongson3_sc_init(voi
 	/* Loongson-3 has 4 cores, 1MB scache for each. scaches are shared */
 	scache_size *= 4;
 	c->scache.waybit = 0;
+	c->scache.waysize = scache_size / c->scache.ways;
 	pr_info("Unified secondary cache %ldkB %s, linesize %d bytes.\n",
 	       scache_size >> 10, way_string[c->scache.ways], c->scache.linesz);
 	if (scache_size)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/mm/mmap.c linux-libre-4.9.52-gnu/arch/mips/mm/mmap.c
--- linux-libre-4.9-gnu/arch/mips/mm/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/mm/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -92,7 +92,7 @@ static unsigned long arch_get_unmapped_a
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/mm/sc-ip22.c linux-libre-4.9.52-gnu/arch/mips/mm/sc-ip22.c
--- linux-libre-4.9-gnu/arch/mips/mm/sc-ip22.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/mm/sc-ip22.c	2017-09-27 08:40:05.000000000 -0400
@@ -31,26 +31,40 @@ static inline void indy_sc_wipe(unsigned
 	unsigned long tmp;
 
 	__asm__ __volatile__(
-	".set\tpush\t\t\t# indy_sc_wipe\n\t"
-	".set\tnoreorder\n\t"
-	".set\tmips3\n\t"
-	".set\tnoat\n\t"
-	"mfc0\t%2, $12\n\t"
-	"li\t$1, 0x80\t\t\t# Go 64 bit\n\t"
-	"mtc0\t$1, $12\n\t"
-
-	"dli\t$1, 0x9000000080000000\n\t"
-	"or\t%0, $1\t\t\t# first line to flush\n\t"
-	"or\t%1, $1\t\t\t# last line to flush\n\t"
-	".set\tat\n\t"
-
-	"1:\tsw\t$0, 0(%0)\n\t"
-	"bne\t%0, %1, 1b\n\t"
-	" daddu\t%0, 32\n\t"
-
-	"mtc0\t%2, $12\t\t\t# Back to 32 bit\n\t"
-	"nop; nop; nop; nop;\n\t"
-	".set\tpop"
+	"	.set	push			# indy_sc_wipe		\n"
+	"	.set	noreorder					\n"
+	"	.set	mips3						\n"
+	"	.set	noat						\n"
+	"	mfc0	%2, $12						\n"
+	"	li	$1, 0x80		# Go 64 bit		\n"
+	"	mtc0	$1, $12						\n"
+	"								\n"
+	"	#							\n"
+	"	# Open code a dli $1, 0x9000000080000000		\n"
+	"	#							\n"
+	"	# Required because binutils 2.25 will happily accept	\n"
+	"	# 64 bit instructions in .set mips3 mode but puke on	\n"
+	"	# 64 bit constants when generating 32 bit ELF		\n"
+	"	#							\n"
+	"	lui	$1,0x9000					\n"
+	"	dsll	$1,$1,0x10					\n"
+	"	ori	$1,$1,0x8000					\n"
+	"	dsll	$1,$1,0x10					\n"
+	"								\n"
+	"	or	%0, $1			# first line to flush	\n"
+	"	or	%1, $1			# last line to flush	\n"
+	"	.set	at						\n"
+	"								\n"
+	"1:	sw	$0, 0(%0)					\n"
+	"	bne	%0, %1, 1b					\n"
+	"	 daddu	%0, 32						\n"
+	"								\n"
+	"	mtc0	%2, $12			# Back to 32 bit	\n"
+	"	nop				# pipeline hazard	\n"
+	"	nop							\n"
+	"	nop							\n"
+	"	nop							\n"
+	"	.set	pop						\n"
 	: "=r" (first), "=r" (last), "=&r" (tmp)
 	: "0" (first), "1" (last));
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/mm/tlbex.c linux-libre-4.9.52-gnu/arch/mips/mm/tlbex.c
--- linux-libre-4.9-gnu/arch/mips/mm/tlbex.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/mm/tlbex.c	2017-09-27 08:40:05.000000000 -0400
@@ -762,7 +762,8 @@ static void build_huge_update_entries(u3
 static void build_huge_handler_tail(u32 **p, struct uasm_reloc **r,
 				    struct uasm_label **l,
 				    unsigned int pte,
-				    unsigned int ptr)
+				    unsigned int ptr,
+				    unsigned int flush)
 {
 #ifdef CONFIG_SMP
 	UASM_i_SC(p, pte, 0, ptr);
@@ -771,6 +772,22 @@ static void build_huge_handler_tail(u32
 #else
 	UASM_i_SW(p, pte, 0, ptr);
 #endif
+	if (cpu_has_ftlb && flush) {
+		BUG_ON(!cpu_has_tlbinv);
+
+		UASM_i_MFC0(p, ptr, C0_ENTRYHI);
+		uasm_i_ori(p, ptr, ptr, MIPS_ENTRYHI_EHINV);
+		UASM_i_MTC0(p, ptr, C0_ENTRYHI);
+		build_tlb_write_entry(p, l, r, tlb_indexed);
+
+		uasm_i_xori(p, ptr, ptr, MIPS_ENTRYHI_EHINV);
+		UASM_i_MTC0(p, ptr, C0_ENTRYHI);
+		build_huge_update_entries(p, pte, ptr);
+		build_huge_tlb_write_entry(p, l, r, pte, tlb_random, 0);
+
+		return;
+	}
+
 	build_huge_update_entries(p, pte, ptr);
 	build_huge_tlb_write_entry(p, l, r, pte, tlb_indexed, 0);
 }
@@ -2197,7 +2214,7 @@ static void build_r4000_tlb_load_handler
 		uasm_l_tlbl_goaround2(&l, p);
 	}
 	uasm_i_ori(&p, wr.r1, wr.r1, (_PAGE_ACCESSED | _PAGE_VALID));
-	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
+	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 1);
 #endif
 
 	uasm_l_nopage_tlbl(&l, p);
@@ -2252,7 +2269,7 @@ static void build_r4000_tlb_store_handle
 	build_tlb_probe_entry(&p);
 	uasm_i_ori(&p, wr.r1, wr.r1,
 		   _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY);
-	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
+	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 1);
 #endif
 
 	uasm_l_nopage_tlbs(&l, p);
@@ -2308,7 +2325,7 @@ static void build_r4000_tlb_modify_handl
 	build_tlb_probe_entry(&p);
 	uasm_i_ori(&p, wr.r1, wr.r1,
 		   _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY);
-	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2);
+	build_huge_handler_tail(&p, &r, &l, wr.r1, wr.r2, 0);
 #endif
 
 	uasm_l_nopage_tlbm(&l, p);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/pic32/pic32mzda/Makefile linux-libre-4.9.52-gnu/arch/mips/pic32/pic32mzda/Makefile
--- linux-libre-4.9-gnu/arch/mips/pic32/pic32mzda/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/pic32/pic32mzda/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -2,8 +2,7 @@
 # Joshua Henderson, <joshua.henderson@microchip.com>
 # Copyright (C) 2015 Microchip Technology, Inc.  All rights reserved.
 #
-obj-y			:= init.o time.o config.o
+obj-y			:= config.o early_clk.o init.o time.o
 
 obj-$(CONFIG_EARLY_PRINTK)	+= early_console.o      \
-				   early_pin.o		\
-				   early_clk.o
+				   early_pin.o
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/ralink/prom.c linux-libre-4.9.52-gnu/arch/mips/ralink/prom.c
--- linux-libre-4.9-gnu/arch/mips/ralink/prom.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/ralink/prom.c	2017-09-27 08:40:05.000000000 -0400
@@ -30,8 +30,10 @@ const char *get_system_type(void)
 	return soc_info.sys_type;
 }
 
-static __init void prom_init_cmdline(int argc, char **argv)
+static __init void prom_init_cmdline(void)
 {
+	int argc;
+	char **argv;
 	int i;
 
 	pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n",
@@ -60,14 +62,11 @@ static __init void prom_init_cmdline(int
 
 void __init prom_init(void)
 {
-	int argc;
-	char **argv;
-
 	prom_soc_init(&soc_info);
 
 	pr_info("SoC Type: %s\n", get_system_type());
 
-	prom_init_cmdline(argc, argv);
+	prom_init_cmdline();
 }
 
 void __init prom_free_prom_memory(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/ralink/rt288x.c linux-libre-4.9.52-gnu/arch/mips/ralink/rt288x.c
--- linux-libre-4.9-gnu/arch/mips/ralink/rt288x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/ralink/rt288x.c	2017-09-27 08:40:05.000000000 -0400
@@ -40,16 +40,6 @@ static struct rt2880_pmx_group rt2880_pi
 	{ 0 }
 };
 
-static void rt288x_wdt_reset(void)
-{
-	u32 t;
-
-	/* enable WDT reset output on pin SRAM_CS_N */
-	t = rt_sysc_r32(SYSC_REG_CLKCFG);
-	t |= CLKCFG_SRAM_CS_N_WDT;
-	rt_sysc_w32(t, SYSC_REG_CLKCFG);
-}
-
 void __init ralink_clk_init(void)
 {
 	unsigned long cpu_rate, wmac_rate = 40000000;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/ralink/rt305x.c linux-libre-4.9.52-gnu/arch/mips/ralink/rt305x.c
--- linux-libre-4.9-gnu/arch/mips/ralink/rt305x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/ralink/rt305x.c	2017-09-27 08:40:05.000000000 -0400
@@ -89,17 +89,6 @@ static struct rt2880_pmx_group rt5350_pi
 	{ 0 }
 };
 
-static void rt305x_wdt_reset(void)
-{
-	u32 t;
-
-	/* enable WDT reset output on pin SRAM_CS_N */
-	t = rt_sysc_r32(SYSC_REG_SYSTEM_CONFIG);
-	t |= RT305X_SYSCFG_SRAM_CS0_MODE_WDT <<
-		RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT;
-	rt_sysc_w32(t, SYSC_REG_SYSTEM_CONFIG);
-}
-
 static unsigned long rt5350_get_mem_size(void)
 {
 	void __iomem *sysc = (void __iomem *) KSEG1ADDR(RT305X_SYSC_BASE);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/ralink/rt3883.c linux-libre-4.9.52-gnu/arch/mips/ralink/rt3883.c
--- linux-libre-4.9-gnu/arch/mips/ralink/rt3883.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/ralink/rt3883.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,7 +36,7 @@ static struct rt2880_pmx_func uartlite_f
 static struct rt2880_pmx_func jtag_func[] = { FUNC("jtag", 0, 17, 5) };
 static struct rt2880_pmx_func mdio_func[] = { FUNC("mdio", 0, 22, 2) };
 static struct rt2880_pmx_func lna_a_func[] = { FUNC("lna a", 0, 32, 3) };
-static struct rt2880_pmx_func lna_g_func[] = { FUNC("lna a", 0, 35, 3) };
+static struct rt2880_pmx_func lna_g_func[] = { FUNC("lna g", 0, 35, 3) };
 static struct rt2880_pmx_func pci_func[] = {
 	FUNC("pci-dev", 0, 40, 32),
 	FUNC("pci-host2", 1, 40, 32),
@@ -44,7 +44,7 @@ static struct rt2880_pmx_func pci_func[]
 	FUNC("pci-fnc", 3, 40, 32)
 };
 static struct rt2880_pmx_func ge1_func[] = { FUNC("ge1", 0, 72, 12) };
-static struct rt2880_pmx_func ge2_func[] = { FUNC("ge1", 0, 84, 12) };
+static struct rt2880_pmx_func ge2_func[] = { FUNC("ge2", 0, 84, 12) };
 
 static struct rt2880_pmx_group rt3883_pinmux_data[] = {
 	GRP("i2c", i2c_func, 1, RT3883_GPIO_MODE_I2C),
@@ -63,16 +63,6 @@ static struct rt2880_pmx_group rt3883_pi
 	{ 0 }
 };
 
-static void rt3883_wdt_reset(void)
-{
-	u32 t;
-
-	/* enable WDT reset output on GPIO 2 */
-	t = rt_sysc_r32(RT3883_SYSC_REG_SYSCFG1);
-	t |= RT3883_SYSCFG1_GPIO2_AS_WDT_OUT;
-	rt_sysc_w32(t, RT3883_SYSC_REG_SYSCFG1);
-}
-
 void __init ralink_clk_init(void)
 {
 	unsigned long cpu_rate, sys_rate;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/ralink/timer.c linux-libre-4.9.52-gnu/arch/mips/ralink/timer.c
--- linux-libre-4.9-gnu/arch/mips/ralink/timer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/ralink/timer.c	2017-09-27 08:40:05.000000000 -0400
@@ -71,11 +71,6 @@ static int rt_timer_request(struct rt_ti
 	return err;
 }
 
-static void rt_timer_free(struct rt_timer *rt)
-{
-	free_irq(rt->irq, rt);
-}
-
 static int rt_timer_config(struct rt_timer *rt, unsigned long divisor)
 {
 	if (rt->timer_freq < divisor)
@@ -101,15 +96,6 @@ static int rt_timer_enable(struct rt_tim
 	return 0;
 }
 
-static void rt_timer_disable(struct rt_timer *rt)
-{
-	u32 t;
-
-	t = rt_timer_r32(rt, TIMER_REG_TMR0CTL);
-	t &= ~TMR0CTL_ENABLE;
-	rt_timer_w32(rt, TIMER_REG_TMR0CTL, t);
-}
-
 static int rt_timer_probe(struct platform_device *pdev)
 {
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mips/sgi-ip22/Platform linux-libre-4.9.52-gnu/arch/mips/sgi-ip22/Platform
--- linux-libre-4.9-gnu/arch/mips/sgi-ip22/Platform	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mips/sgi-ip22/Platform	2017-09-27 08:40:05.000000000 -0400
@@ -25,7 +25,7 @@ endif
 # Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys
 #
 ifdef CONFIG_SGI_IP28
-  ifeq ($(call cc-option-yn,-mr10k-cache-barrier=store), n)
+  ifeq ($(call cc-option-yn,-march=r10000 -mr10k-cache-barrier=store), n)
       $(error gcc doesn't support needed option -mr10k-cache-barrier=store)
   endif
 endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/mn10300/include/asm/switch_to.h linux-libre-4.9.52-gnu/arch/mn10300/include/asm/switch_to.h
--- linux-libre-4.9-gnu/arch/mn10300/include/asm/switch_to.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/mn10300/include/asm/switch_to.h	2017-09-27 08:40:05.000000000 -0400
@@ -16,7 +16,7 @@
 struct task_struct;
 struct thread_struct;
 
-#if !defined(CONFIG_LAZY_SAVE_FPU)
+#if defined(CONFIG_FPU) && !defined(CONFIG_LAZY_SAVE_FPU)
 struct fpu_state_struct;
 extern asmlinkage void fpu_save(struct fpu_state_struct *);
 #define switch_fpu(prev, next)						\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/nios2/kernel/prom.c linux-libre-4.9.52-gnu/arch/nios2/kernel/prom.c
--- linux-libre-4.9-gnu/arch/nios2/kernel/prom.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/nios2/kernel/prom.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,6 +48,13 @@ void * __init early_init_dt_alloc_memory
 	return alloc_bootmem_align(size, align);
 }
 
+int __init early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
+					     bool nomap)
+{
+	reserve_bootmem(base, size, BOOTMEM_DEFAULT);
+	return 0;
+}
+
 void __init early_init_devtree(void *params)
 {
 	__be32 *dtb = (u32 *)__dtb_start;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/nios2/kernel/setup.c linux-libre-4.9.52-gnu/arch/nios2/kernel/setup.c
--- linux-libre-4.9-gnu/arch/nios2/kernel/setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/nios2/kernel/setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -195,6 +195,9 @@ void __init setup_arch(char **cmdline_p)
 	}
 #endif /* CONFIG_BLK_DEV_INITRD */
 
+	early_init_fdt_reserve_self();
+	early_init_fdt_scan_reserved_mem();
+
 	unflatten_and_copy_device_tree();
 
 	setup_cpuinfo();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/openrisc/kernel/vmlinux.lds.S linux-libre-4.9.52-gnu/arch/openrisc/kernel/vmlinux.lds.S
--- linux-libre-4.9-gnu/arch/openrisc/kernel/vmlinux.lds.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/openrisc/kernel/vmlinux.lds.S	2017-09-27 08:40:05.000000000 -0400
@@ -38,6 +38,8 @@ SECTIONS
         /* Read-only sections, merged into text segment: */
         . = LOAD_BASE ;
 
+	_text = .;
+
 	/* _s_kernel_ro must be page aligned */
 	. = ALIGN(PAGE_SIZE);
 	_s_kernel_ro = .;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/include/asm/bitops.h linux-libre-4.9.52-gnu/arch/parisc/include/asm/bitops.h
--- linux-libre-4.9-gnu/arch/parisc/include/asm/bitops.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/include/asm/bitops.h	2017-09-27 08:40:05.000000000 -0400
@@ -6,7 +6,7 @@
 #endif
 
 #include <linux/compiler.h>
-#include <asm/types.h>		/* for BITS_PER_LONG/SHIFT_PER_LONG */
+#include <asm/types.h>
 #include <asm/byteorder.h>
 #include <asm/barrier.h>
 #include <linux/atomic.h>
@@ -17,6 +17,12 @@
  * to include/asm-i386/bitops.h or kerneldoc
  */
 
+#if __BITS_PER_LONG == 64
+#define SHIFT_PER_LONG 6
+#else
+#define SHIFT_PER_LONG 5
+#endif
+
 #define CHOP_SHIFTCOUNT(x) (((unsigned long) (x)) & (BITS_PER_LONG - 1))
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/include/asm/cacheflush.h linux-libre-4.9.52-gnu/arch/parisc/include/asm/cacheflush.h
--- linux-libre-4.9-gnu/arch/parisc/include/asm/cacheflush.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/include/asm/cacheflush.h	2017-09-27 08:40:05.000000000 -0400
@@ -45,28 +45,9 @@ static inline void flush_kernel_dcache_p
 
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
-/* vmap range flushes and invalidates.  Architecturally, we don't need
- * the invalidate, because the CPU should refuse to speculate once an
- * area has been flushed, so invalidate is left empty */
-static inline void flush_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start = (unsigned long)vaddr;
 
-	flush_kernel_dcache_range_asm(start, start + size);
-}
-static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start = (unsigned long)vaddr;
-	void *cursor = vaddr;
-
-	for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
-		struct page *page = vmalloc_to_page(cursor);
-
-		if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
-			flush_kernel_dcache_page(page);
-	}
-	flush_kernel_dcache_range_asm(start, start + size);
-}
+void flush_kernel_vmap_range(void *vaddr, int size);
+void invalidate_kernel_vmap_range(void *vaddr, int size);
 
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/include/asm/dma-mapping.h linux-libre-4.9.52-gnu/arch/parisc/include/asm/dma-mapping.h
--- linux-libre-4.9-gnu/arch/parisc/include/asm/dma-mapping.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/include/asm/dma-mapping.h	2017-09-27 08:40:05.000000000 -0400
@@ -20,6 +20,8 @@
 ** flush/purge and allocate "regular" cacheable pages for everything.
 */
 
+#define DMA_ERROR_CODE	(~(dma_addr_t)0)
+
 #ifdef CONFIG_PA11
 extern struct dma_map_ops pcxl_dma_ops;
 extern struct dma_map_ops pcx_dma_ops;
@@ -54,12 +56,13 @@ parisc_walk_tree(struct device *dev)
 			break;
 		}
 	}
-	BUG_ON(!dev->platform_data);
 	return dev->platform_data;
 }
-		
-#define GET_IOC(dev) (HBA_DATA(parisc_walk_tree(dev))->iommu)
-	
+
+#define GET_IOC(dev) ({					\
+	void *__pdata = parisc_walk_tree(dev);		\
+	__pdata ? HBA_DATA(__pdata)->iommu : NULL;	\
+})
 
 #ifdef CONFIG_IOMMU_CCIO
 struct parisc_device;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/include/asm/mmu_context.h linux-libre-4.9.52-gnu/arch/parisc/include/asm/mmu_context.h
--- linux-libre-4.9-gnu/arch/parisc/include/asm/mmu_context.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/include/asm/mmu_context.h	2017-09-27 08:40:05.000000000 -0400
@@ -49,15 +49,26 @@ static inline void load_context(mm_conte
 	mtctl(__space_to_prot(context), 8);
 }
 
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
+static inline void switch_mm_irqs_off(struct mm_struct *prev,
+		struct mm_struct *next, struct task_struct *tsk)
 {
-
 	if (prev != next) {
 		mtctl(__pa(next->pgd), 25);
 		load_context(next->context);
 	}
 }
 
+static inline void switch_mm(struct mm_struct *prev,
+		struct mm_struct *next, struct task_struct *tsk)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	switch_mm_irqs_off(prev, next, tsk);
+	local_irq_restore(flags);
+}
+#define switch_mm_irqs_off switch_mm_irqs_off
+
 #define deactivate_mm(tsk,mm)	do { } while (0)
 
 static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/include/asm/uaccess.h linux-libre-4.9.52-gnu/arch/parisc/include/asm/uaccess.h
--- linux-libre-4.9-gnu/arch/parisc/include/asm/uaccess.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/include/asm/uaccess.h	2017-09-27 08:40:05.000000000 -0400
@@ -42,10 +42,10 @@ static inline long access_ok(int type, c
 #define get_user __get_user
 
 #if !defined(CONFIG_64BIT)
-#define LDD_USER(ptr)		__get_user_asm64(ptr)
+#define LDD_USER(val, ptr)	__get_user_asm64(val, ptr)
 #define STD_USER(x, ptr)	__put_user_asm64(x, ptr)
 #else
-#define LDD_USER(ptr)		__get_user_asm("ldd", ptr)
+#define LDD_USER(val, ptr)	__get_user_asm(val, "ldd", ptr)
 #define STD_USER(x, ptr)	__put_user_asm("std", x, ptr)
 #endif
 
@@ -68,6 +68,15 @@ struct exception_table_entry {
 	".previous\n"
 
 /*
+ * ASM_EXCEPTIONTABLE_ENTRY_EFAULT() creates a special exception table entry
+ * (with lowest bit set) for which the fault handler in fixup_exception() will
+ * load -EFAULT into %r8 for a read or write fault, and zeroes the target
+ * register in case of a read fault in get_user().
+ */
+#define ASM_EXCEPTIONTABLE_ENTRY_EFAULT( fault_addr, except_addr )\
+	ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr + 1)
+
+/*
  * The page fault handler stores, in a per-cpu area, the following information
  * if a fixup routine is available.
  */
@@ -91,92 +100,116 @@ struct exception_data {
 		" mtsp %0,%%sr2\n\t"		\
 		: : "r"(get_fs()) : )
 
-#define __get_user(x, ptr)                               \
-({                                                       \
-	register long __gu_err __asm__ ("r8") = 0;       \
-	register long __gu_val __asm__ ("r9") = 0;       \
-							 \
-	load_sr2();					 \
-	switch (sizeof(*(ptr))) {			 \
-	    case 1: __get_user_asm("ldb", ptr); break;   \
-	    case 2: __get_user_asm("ldh", ptr); break;   \
-	    case 4: __get_user_asm("ldw", ptr); break;   \
-	    case 8: LDD_USER(ptr);  break;		 \
-	    default: BUILD_BUG(); break;		 \
-	}                                                \
-							 \
-	(x) = (__force __typeof__(*(ptr))) __gu_val;	 \
-	__gu_err;                                        \
+#define __get_user_internal(val, ptr)			\
+({							\
+	register long __gu_err __asm__ ("r8") = 0;	\
+							\
+	switch (sizeof(*(ptr))) {			\
+	case 1: __get_user_asm(val, "ldb", ptr); break;	\
+	case 2: __get_user_asm(val, "ldh", ptr); break; \
+	case 4: __get_user_asm(val, "ldw", ptr); break; \
+	case 8: LDD_USER(val, ptr); break;		\
+	default: BUILD_BUG();				\
+	}						\
+							\
+	__gu_err;					\
 })
 
-#define __get_user_asm(ldx, ptr)                        \
-	__asm__("\n1:\t" ldx "\t0(%%sr2,%2),%0\n\t"	\
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_1)\
+#define __get_user(val, ptr)				\
+({							\
+	load_sr2();					\
+	__get_user_internal(val, ptr);			\
+})
+
+#define __get_user_asm(val, ldx, ptr)			\
+{							\
+	register long __gu_val;				\
+							\
+	__asm__("1: " ldx " 0(%%sr2,%2),%0\n"		\
+		"9:\n"					\
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	\
 		: "=r"(__gu_val), "=r"(__gu_err)        \
-		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+		: "r"(ptr), "1"(__gu_err));		\
+							\
+	(val) = (__force __typeof__(*(ptr))) __gu_val;	\
+}
 
 #if !defined(CONFIG_64BIT)
 
-#define __get_user_asm64(ptr) 				\
-	__asm__("\n1:\tldw 0(%%sr2,%2),%0"		\
-		"\n2:\tldw 4(%%sr2,%2),%R0\n\t"		\
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_get_user_skip_1)\
-		: "=r"(__gu_val), "=r"(__gu_err)	\
-		: "r"(ptr), "1"(__gu_err)		\
-		: "r1");
+#define __get_user_asm64(val, ptr)			\
+{							\
+	union {						\
+		unsigned long long	l;		\
+		__typeof__(*(ptr))	t;		\
+	} __gu_tmp;					\
+							\
+	__asm__("   copy %%r0,%R0\n"			\
+		"1: ldw 0(%%sr2,%2),%0\n"		\
+		"2: ldw 4(%%sr2,%2),%R0\n"		\
+		"9:\n"					\
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	\
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 9b)	\
+		: "=&r"(__gu_tmp.l), "=r"(__gu_err)	\
+		: "r"(ptr), "1"(__gu_err));		\
+							\
+	(val) = __gu_tmp.t;				\
+}
 
 #endif /* !defined(CONFIG_64BIT) */
 
 
-#define __put_user(x, ptr)                                      \
+#define __put_user_internal(x, ptr)				\
 ({								\
 	register long __pu_err __asm__ ("r8") = 0;      	\
         __typeof__(*(ptr)) __x = (__typeof__(*(ptr)))(x);	\
 								\
-	load_sr2();						\
 	switch (sizeof(*(ptr))) {				\
-	    case 1: __put_user_asm("stb", __x, ptr); break;     \
-	    case 2: __put_user_asm("sth", __x, ptr); break;     \
-	    case 4: __put_user_asm("stw", __x, ptr); break;     \
-	    case 8: STD_USER(__x, ptr); break;			\
-	    default: BUILD_BUG(); break;			\
-	}                                                       \
+	case 1: __put_user_asm("stb", __x, ptr); break;		\
+	case 2: __put_user_asm("sth", __x, ptr); break;		\
+	case 4: __put_user_asm("stw", __x, ptr); break;		\
+	case 8: STD_USER(__x, ptr); break;			\
+	default: BUILD_BUG();					\
+	}							\
 								\
 	__pu_err;						\
 })
 
+#define __put_user(x, ptr)					\
+({								\
+	load_sr2();						\
+	__put_user_internal(x, ptr);				\
+})
+
+
 /*
  * The "__put_user/kernel_asm()" macros tell gcc they read from memory
  * instead of writing. This is because they do not write to any memory
  * gcc knows about, so there are no aliasing issues. These macros must
- * also be aware that "fixup_put_user_skip_[12]" are executed in the
- * context of the fault, and any registers used there must be listed
- * as clobbers. In this case only "r1" is used by the current routines.
- * r8/r9 are already listed as err/val.
+ * also be aware that fixups are executed in the context of the fault,
+ * and any registers used there must be listed as clobbers.
+ * r8 is already listed as err.
  */
 
 #define __put_user_asm(stx, x, ptr)                         \
 	__asm__ __volatile__ (                              \
-		"\n1:\t" stx "\t%2,0(%%sr2,%1)\n\t"	    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_1)\
+		"1: " stx " %2,0(%%sr2,%1)\n"		    \
+		"9:\n"					    \
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	    \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(x), "0"(__pu_err)	    \
-		: "r1")
+		: "r"(ptr), "r"(x), "0"(__pu_err))
 
 
 #if !defined(CONFIG_64BIT)
 
 #define __put_user_asm64(__val, ptr) do {	    	    \
 	__asm__ __volatile__ (				    \
-		"\n1:\tstw %2,0(%%sr2,%1)"		    \
-		"\n2:\tstw %R2,4(%%sr2,%1)\n\t"		    \
-		ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_put_user_skip_2)\
-		ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_put_user_skip_1)\
+		"1: stw %2,0(%%sr2,%1)\n"		    \
+		"2: stw %R2,4(%%sr2,%1)\n"		    \
+		"9:\n"					    \
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(1b, 9b)	    \
+		ASM_EXCEPTIONTABLE_ENTRY_EFAULT(2b, 9b)	    \
 		: "=r"(__pu_err)                            \
-		: "r"(ptr), "r"(__val), "0"(__pu_err) \
-		: "r1");				    \
+		: "r"(ptr), "r"(__val), "0"(__pu_err));	    \
 } while (0)
 
 #endif /* !defined(CONFIG_64BIT) */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/include/uapi/asm/bitsperlong.h linux-libre-4.9.52-gnu/arch/parisc/include/uapi/asm/bitsperlong.h
--- linux-libre-4.9-gnu/arch/parisc/include/uapi/asm/bitsperlong.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/include/uapi/asm/bitsperlong.h	2017-09-27 08:40:05.000000000 -0400
@@ -3,10 +3,8 @@
 
 #if defined(__LP64__)
 #define __BITS_PER_LONG 64
-#define SHIFT_PER_LONG 6
 #else
 #define __BITS_PER_LONG 32
-#define SHIFT_PER_LONG 5
 #endif
 
 #include <asm-generic/bitsperlong.h>
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/include/uapi/asm/swab.h linux-libre-4.9.52-gnu/arch/parisc/include/uapi/asm/swab.h
--- linux-libre-4.9-gnu/arch/parisc/include/uapi/asm/swab.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/include/uapi/asm/swab.h	2017-09-27 08:40:05.000000000 -0400
@@ -1,6 +1,7 @@
 #ifndef _PARISC_SWAB_H
 #define _PARISC_SWAB_H
 
+#include <asm/bitsperlong.h>
 #include <linux/types.h>
 #include <linux/compiler.h>
 
@@ -38,7 +39,7 @@ static inline __attribute_const__ __u32
 }
 #define __arch_swab32 __arch_swab32
 
-#if BITS_PER_LONG > 32
+#if __BITS_PER_LONG > 32
 /*
 ** From "PA-RISC 2.0 Architecture", HP Professional Books.
 ** See Appendix I page 8 , "Endian Byte Swapping".
@@ -61,6 +62,6 @@ static inline __attribute_const__ __u64
 	return x;
 }
 #define __arch_swab64 __arch_swab64
-#endif /* BITS_PER_LONG > 32 */
+#endif /* __BITS_PER_LONG > 32 */
 
 #endif /* _PARISC_SWAB_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/kernel/cache.c linux-libre-4.9.52-gnu/arch/parisc/kernel/cache.c
--- linux-libre-4.9-gnu/arch/parisc/kernel/cache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/kernel/cache.c	2017-09-27 08:40:05.000000000 -0400
@@ -452,8 +452,8 @@ void copy_user_page(void *vto, void *vfr
 	  before it can be accessed through the kernel mapping. */
 	preempt_disable();
 	flush_dcache_page_asm(__pa(vfrom), vaddr);
-	preempt_enable();
 	copy_page_asm(vto, vfrom);
+	preempt_enable();
 }
 EXPORT_SYMBOL(copy_user_page);
 
@@ -538,6 +538,10 @@ void flush_cache_mm(struct mm_struct *mm
 	struct vm_area_struct *vma;
 	pgd_t *pgd;
 
+	/* Flush the TLB to avoid speculation if coherency is required. */
+	if (parisc_requires_coherency())
+		flush_tlb_all();
+
 	/* Flushing the whole cache on each cpu takes forever on
 	   rp3440, etc.  So, avoid it if the mm isn't too big.  */
 	if (mm_total_size(mm) >= parisc_cache_flush_threshold) {
@@ -594,33 +598,21 @@ flush_user_icache_range(unsigned long st
 void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)
 {
-	unsigned long addr;
-	pgd_t *pgd;
-
 	BUG_ON(!vma->vm_mm->context);
 
-	if ((end - start) >= parisc_cache_flush_threshold) {
-		flush_cache_all();
-		return;
-	}
+	/* Flush the TLB to avoid speculation if coherency is required. */
+	if (parisc_requires_coherency())
+		flush_tlb_range(vma, start, end);
 
-	if (vma->vm_mm->context == mfsp(3)) {
-		flush_user_dcache_range_asm(start, end);
-		if (vma->vm_flags & VM_EXEC)
-			flush_user_icache_range_asm(start, end);
+	if ((end - start) >= parisc_cache_flush_threshold
+	    || vma->vm_mm->context != mfsp(3)) {
+		flush_cache_all();
 		return;
 	}
 
-	pgd = vma->vm_mm->pgd;
-	for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
-		unsigned long pfn;
-		pte_t *ptep = get_ptep(pgd, addr);
-		if (!ptep)
-			continue;
-		pfn = pte_pfn(*ptep);
-		if (pfn_valid(pfn))
-			__flush_cache_page(vma, addr, PFN_PHYS(pfn));
-	}
+	flush_user_dcache_range_asm(start, end);
+	if (vma->vm_flags & VM_EXEC)
+		flush_user_icache_range_asm(start, end);
 }
 
 void
@@ -629,7 +621,30 @@ flush_cache_page(struct vm_area_struct *
 	BUG_ON(!vma->vm_mm->context);
 
 	if (pfn_valid(pfn)) {
-		flush_tlb_page(vma, vmaddr);
+		if (parisc_requires_coherency())
+			flush_tlb_page(vma, vmaddr);
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }
+
+void flush_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start = (unsigned long)vaddr;
+
+	if ((unsigned long)size > parisc_cache_flush_threshold)
+		flush_data_cache();
+	else
+		flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(flush_kernel_vmap_range);
+
+void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start = (unsigned long)vaddr;
+
+	if ((unsigned long)size > parisc_cache_flush_threshold)
+		flush_data_cache();
+	else
+		flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(invalidate_kernel_vmap_range);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/kernel/parisc_ksyms.c linux-libre-4.9.52-gnu/arch/parisc/kernel/parisc_ksyms.c
--- linux-libre-4.9-gnu/arch/parisc/kernel/parisc_ksyms.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/kernel/parisc_ksyms.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,16 +47,6 @@ EXPORT_SYMBOL(__cmpxchg_u64);
 EXPORT_SYMBOL(lclear_user);
 EXPORT_SYMBOL(lstrnlen_user);
 
-/* Global fixups - defined as int to avoid creation of function pointers */
-extern int fixup_get_user_skip_1;
-extern int fixup_get_user_skip_2;
-extern int fixup_put_user_skip_1;
-extern int fixup_put_user_skip_2;
-EXPORT_SYMBOL(fixup_get_user_skip_1);
-EXPORT_SYMBOL(fixup_get_user_skip_2);
-EXPORT_SYMBOL(fixup_put_user_skip_1);
-EXPORT_SYMBOL(fixup_put_user_skip_2);
-
 #ifndef CONFIG_64BIT
 /* Needed so insmod can set dp value */
 extern int $global$;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/kernel/process.c linux-libre-4.9.52-gnu/arch/parisc/kernel/process.c
--- linux-libre-4.9-gnu/arch/parisc/kernel/process.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/kernel/process.c	2017-09-27 08:40:05.000000000 -0400
@@ -50,6 +50,7 @@
 #include <linux/uaccess.h>
 #include <linux/rcupdate.h>
 #include <linux/random.h>
+#include <linux/nmi.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -139,6 +140,11 @@ void machine_power_off(void)
 
 	printk(KERN_EMERG "System shut down completed.\n"
 	       "Please power this system off now.");
+
+	/* prevent soft lockup/stalled CPU messages for endless loop. */
+	rcu_sysrq_start();
+	lockup_detector_suspend();
+	for (;;);
 }
 
 void (*pm_power_off)(void) = machine_power_off;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/kernel/syscall_table.S linux-libre-4.9.52-gnu/arch/parisc/kernel/syscall_table.S
--- linux-libre-4.9-gnu/arch/parisc/kernel/syscall_table.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/kernel/syscall_table.S	2017-09-27 08:40:05.000000000 -0400
@@ -361,7 +361,7 @@
 	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
 	ENTRY_SAME(add_key)
 	ENTRY_SAME(request_key)		/* 265 */
-	ENTRY_SAME(keyctl)
+	ENTRY_COMP(keyctl)
 	ENTRY_SAME(ioprio_set)
 	ENTRY_SAME(ioprio_get)
 	ENTRY_SAME(inotify_init)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/kernel/sys_parisc.c linux-libre-4.9.52-gnu/arch/parisc/kernel/sys_parisc.c
--- linux-libre-4.9-gnu/arch/parisc/kernel/sys_parisc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/kernel/sys_parisc.c	2017-09-27 08:40:05.000000000 -0400
@@ -88,7 +88,7 @@ unsigned long arch_get_unmapped_area(str
 		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align, last_mmap;
 	struct vm_unmapped_area_info info;
@@ -115,9 +115,10 @@ unsigned long arch_get_unmapped_area(str
 		else
 			addr = PAGE_ALIGN(addr);
 
-		vma = find_vma(mm, addr);
+		vma = find_vma_prev(mm, addr, &prev);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			goto found_addr;
 	}
 
@@ -141,7 +142,7 @@ arch_get_unmapped_area_topdown(struct fi
 			  const unsigned long len, const unsigned long pgoff,
 			  const unsigned long flags)
 {
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_color_align, last_mmap;
@@ -175,9 +176,11 @@ arch_get_unmapped_area_topdown(struct fi
 			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
 		else
 			addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
+
+		vma = find_vma_prev(mm, addr, &prev);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			goto found_addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/kernel/time.c linux-libre-4.9.52-gnu/arch/parisc/kernel/time.c
--- linux-libre-4.9-gnu/arch/parisc/kernel/time.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/kernel/time.c	2017-09-27 08:40:05.000000000 -0400
@@ -289,9 +289,26 @@ void __init time_init(void)
 
 	cr16_hz = 100 * PAGE0->mem_10msec;  /* Hz */
 
-	/* register at clocksource framework */
-	clocksource_register_hz(&clocksource_cr16, cr16_hz);
-
 	/* register as sched_clock source */
 	sched_clock_register(read_cr16_sched_clock, BITS_PER_LONG, cr16_hz);
 }
+
+static int __init init_cr16_clocksource(void)
+{
+	/*
+	 * The cr16 interval timers are not syncronized across CPUs, so mark
+	 * them unstable and lower rating on SMP systems.
+	 */
+	if (num_online_cpus() > 1) {
+		clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
+		clocksource_cr16.rating = 0;
+	}
+
+	/* register at clocksource framework */
+	clocksource_register_hz(&clocksource_cr16,
+		100 * PAGE0->mem_10msec);
+
+	return 0;
+}
+
+device_initcall(init_cr16_clocksource);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/lib/fixup.S linux-libre-4.9.52-gnu/arch/parisc/lib/fixup.S
--- linux-libre-4.9-gnu/arch/parisc/lib/fixup.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/lib/fixup.S	1969-12-31 19:00:00.000000000 -0500
@@ -1,98 +0,0 @@
-/*
- * Linux/PA-RISC Project (http://www.parisc-linux.org/)
- *
- *  Copyright (C) 2004  Randolph Chung <tausq@debian.org>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2, or (at your option)
- *    any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- * 
- * Fixup routines for kernel exception handling.
- */
-#include <asm/asm-offsets.h>
-#include <asm/assembly.h>
-#include <asm/errno.h>
-#include <linux/linkage.h>
-
-#ifdef CONFIG_SMP
-	.macro  get_fault_ip t1 t2
-	loadgp
-	addil LT%__per_cpu_offset,%r27
-	LDREG RT%__per_cpu_offset(%r1),\t1
-	/* t2 = smp_processor_id() */
-	mfctl 30,\t2
-	ldw TI_CPU(\t2),\t2
-#ifdef CONFIG_64BIT
-	extrd,u \t2,63,32,\t2
-#endif
-	/* t2 = &__per_cpu_offset[smp_processor_id()]; */
-	LDREGX \t2(\t1),\t2 
-	addil LT%exception_data,%r27
-	LDREG RT%exception_data(%r1),\t1
-	/* t1 = this_cpu_ptr(&exception_data) */
-	add,l \t1,\t2,\t1
-	/* %r27 = t1->fault_gp - restore gp */
-	LDREG EXCDATA_GP(\t1), %r27
-	/* t1 = t1->fault_ip */
-	LDREG EXCDATA_IP(\t1), \t1
-	.endm
-#else
-	.macro  get_fault_ip t1 t2
-	loadgp
-	/* t1 = this_cpu_ptr(&exception_data) */
-	addil LT%exception_data,%r27
-	LDREG RT%exception_data(%r1),\t2
-	/* %r27 = t2->fault_gp - restore gp */
-	LDREG EXCDATA_GP(\t2), %r27
-	/* t1 = t2->fault_ip */
-	LDREG EXCDATA_IP(\t2), \t1
-	.endm
-#endif
-
-	.level LEVEL
-
-	.text
-	.section .fixup, "ax"
-
-	/* get_user() fixups, store -EFAULT in r8, and 0 in r9 */
-ENTRY_CFI(fixup_get_user_skip_1)
-	get_fault_ip %r1,%r8
-	ldo 4(%r1), %r1
-	ldi -EFAULT, %r8
-	bv %r0(%r1)
-	copy %r0, %r9
-ENDPROC_CFI(fixup_get_user_skip_1)
-
-ENTRY_CFI(fixup_get_user_skip_2)
-	get_fault_ip %r1,%r8
-	ldo 8(%r1), %r1
-	ldi -EFAULT, %r8
-	bv %r0(%r1)
-	copy %r0, %r9
-ENDPROC_CFI(fixup_get_user_skip_2)
-
-	/* put_user() fixups, store -EFAULT in r8 */
-ENTRY_CFI(fixup_put_user_skip_1)
-	get_fault_ip %r1,%r8
-	ldo 4(%r1), %r1
-	bv %r0(%r1)
-	ldi -EFAULT, %r8
-ENDPROC_CFI(fixup_put_user_skip_1)
-
-ENTRY_CFI(fixup_put_user_skip_2)
-	get_fault_ip %r1,%r8
-	ldo 8(%r1), %r1
-	bv %r0(%r1)
-	ldi -EFAULT, %r8
-ENDPROC_CFI(fixup_put_user_skip_2)
-
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/lib/lusercopy.S linux-libre-4.9.52-gnu/arch/parisc/lib/lusercopy.S
--- linux-libre-4.9-gnu/arch/parisc/lib/lusercopy.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/lib/lusercopy.S	2017-09-27 08:40:05.000000000 -0400
@@ -5,6 +5,8 @@
  *    Copyright (C) 2000 Richard Hirst <rhirst with parisc-linux.org>
  *    Copyright (C) 2001 Matthieu Delahaye <delahaym at esiee.fr>
  *    Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
+ *    Copyright (C) 2017 Helge Deller <deller@gmx.de>
+ *    Copyright (C) 2017 John David Anglin <dave.anglin@bell.net>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -132,4 +134,321 @@ ENDPROC_CFI(lstrnlen_user)
 
 	.procend
 
+
+
+/*
+ * unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
+ *
+ * Inputs:
+ * - sr1 already contains space of source region
+ * - sr2 already contains space of destination region
+ *
+ * Returns:
+ * - number of bytes that could not be copied.
+ *   On success, this will be zero.
+ *
+ * This code is based on a C-implementation of a copy routine written by
+ * Randolph Chung, which in turn was derived from the glibc.
+ *
+ * Several strategies are tried to try to get the best performance for various
+ * conditions. In the optimal case, we copy by loops that copy 32- or 16-bytes
+ * at a time using general registers.  Unaligned copies are handled either by
+ * aligning the destination and then using shift-and-write method, or in a few
+ * cases by falling back to a byte-at-a-time copy.
+ *
+ * Testing with various alignments and buffer sizes shows that this code is
+ * often >10x faster than a simple byte-at-a-time copy, even for strangely
+ * aligned operands. It is interesting to note that the glibc version of memcpy
+ * (written in C) is actually quite fast already. This routine is able to beat
+ * it by 30-40% for aligned copies because of the loop unrolling, but in some
+ * cases the glibc version is still slightly faster. This lends more
+ * credibility that gcc can generate very good code as long as we are careful.
+ *
+ * Possible optimizations:
+ * - add cache prefetching
+ * - try not to use the post-increment address modifiers; they may create
+ *   additional interlocks. Assumption is that those were only efficient on old
+ *   machines (pre PA8000 processors)
+ */
+
+	dst = arg0
+	src = arg1
+	len = arg2
+	end = arg3
+	t1  = r19
+	t2  = r20
+	t3  = r21
+	t4  = r22
+	srcspc = sr1
+	dstspc = sr2
+
+	t0 = r1
+	a1 = t1
+	a2 = t2
+	a3 = t3
+	a0 = t4
+
+	save_src = ret0
+	save_dst = ret1
+	save_len = r31
+
+ENTRY_CFI(pa_memcpy)
+	.proc
+	.callinfo NO_CALLS
+	.entry
+
+	/* Last destination address */
+	add	dst,len,end
+
+	/* short copy with less than 16 bytes? */
+	cmpib,COND(>>=),n 15,len,.Lbyte_loop
+
+	/* same alignment? */
+	xor	src,dst,t0
+	extru	t0,31,2,t1
+	cmpib,<>,n  0,t1,.Lunaligned_copy
+
+#ifdef CONFIG_64BIT
+	/* only do 64-bit copies if we can get aligned. */
+	extru	t0,31,3,t1
+	cmpib,<>,n  0,t1,.Lalign_loop32
+
+	/* loop until we are 64-bit aligned */
+.Lalign_loop64:
+	extru	dst,31,3,t1
+	cmpib,=,n	0,t1,.Lcopy_loop_16_start
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lalign_loop64
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+.Lcopy_loop_16_start:
+	ldi	31,t0
+.Lcopy_loop_16:
+	cmpb,COND(>>=),n t0,len,.Lword_loop
+
+10:	ldd	0(srcspc,src),t1
+11:	ldd	8(srcspc,src),t2
+	ldo	16(src),src
+12:	std,ma	t1,8(dstspc,dst)
+13:	std,ma	t2,8(dstspc,dst)
+14:	ldd	0(srcspc,src),t1
+15:	ldd	8(srcspc,src),t2
+	ldo	16(src),src
+16:	std,ma	t1,8(dstspc,dst)
+17:	std,ma	t2,8(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,.Lcopy16_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,.Lcopy16_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy_done)
+
+	b	.Lcopy_loop_16
+	ldo	-32(len),len
+
+.Lword_loop:
+	cmpib,COND(>>=),n 3,len,.Lbyte_loop
+20:	ldw,ma	4(srcspc,src),t1
+21:	stw,ma	t1,4(dstspc,dst)
+	b	.Lword_loop
+	ldo	-4(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+#endif /* CONFIG_64BIT */
+
+	/* loop until we are 32-bit aligned */
+.Lalign_loop32:
+	extru	dst,31,2,t1
+	cmpib,=,n	0,t1,.Lcopy_loop_8
+20:	ldb,ma	1(srcspc,src),t1
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lalign_loop32
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+
+.Lcopy_loop_8:
+	cmpib,COND(>>=),n 15,len,.Lbyte_loop
+
+10:	ldw	0(srcspc,src),t1
+11:	ldw	4(srcspc,src),t2
+12:	stw,ma	t1,4(dstspc,dst)
+13:	stw,ma	t2,4(dstspc,dst)
+14:	ldw	8(srcspc,src),t1
+15:	ldw	12(srcspc,src),t2
+	ldo	16(src),src
+16:	stw,ma	t1,4(dstspc,dst)
+17:	stw,ma	t2,4(dstspc,dst)
+
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(11b,.Lcopy8_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(12b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(13b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(14b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(15b,.Lcopy8_fault)
+	ASM_EXCEPTIONTABLE_ENTRY(16b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(17b,.Lcopy_done)
+
+	b	.Lcopy_loop_8
+	ldo	-16(len),len
+
+.Lbyte_loop:
+	cmpclr,COND(<>) len,%r0,%r0
+	b,n	.Lcopy_done
+20:	ldb	0(srcspc,src),t1
+	ldo	1(src),src
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lbyte_loop
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+.Lcopy_done:
+	bv	%r0(%r2)
+	sub	end,dst,ret0
+
+
+	/* src and dst are not aligned the same way. */
+	/* need to go the hard way */
+.Lunaligned_copy:
+	/* align until dst is 32bit-word-aligned */
+	extru	dst,31,2,t1
+	cmpib,=,n	0,t1,.Lcopy_dstaligned
+20:	ldb	0(srcspc,src),t1
+	ldo	1(src),src
+21:	stb,ma	t1,1(dstspc,dst)
+	b	.Lunaligned_copy
+	ldo	-1(len),len
+
+	ASM_EXCEPTIONTABLE_ENTRY(20b,.Lcopy_done)
+	ASM_EXCEPTIONTABLE_ENTRY(21b,.Lcopy_done)
+
+.Lcopy_dstaligned:
+
+	/* store src, dst and len in safe place */
+	copy	src,save_src
+	copy	dst,save_dst
+	copy	len,save_len
+
+	/* len now needs give number of words to copy */
+	SHRREG	len,2,len
+
+	/*
+	 * Copy from a not-aligned src to an aligned dst using shifts.
+	 * Handles 4 words per loop.
+	 */
+
+	depw,z src,28,2,t0
+	subi 32,t0,t0
+	mtsar t0
+	extru len,31,2,t0
+	cmpib,= 2,t0,.Lcase2
+	/* Make src aligned by rounding it down.  */
+	depi 0,31,2,src
+
+	cmpiclr,<> 3,t0,%r0
+	b,n .Lcase3
+	cmpiclr,<> 1,t0,%r0
+	b,n .Lcase1
+.Lcase0:
+	cmpb,COND(=) %r0,len,.Lcda_finish
+	nop
+
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b,n .Ldo3
+.Lcase1:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	ldo -1(len),len
+	cmpb,COND(=),n %r0,len,.Ldo0
+.Ldo4:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+.Ldo3:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a3, a0, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+.Ldo2:
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a0, a1, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+.Ldo1:
+1:	ldw,ma 4(srcspc,src), a3
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	shrpw a1, a2, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+	ldo -4(len),len
+	cmpb,COND(<>) %r0,len,.Ldo4
+	nop
+.Ldo0:
+	shrpw a2, a3, %sar, t0
+1:	stw,ma t0, 4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcopy_done)
+
+.Lcda_rdfault:
+.Lcda_finish:
+	/* calculate new src, dst and len and jump to byte-copy loop */
+	sub	dst,save_dst,t0
+	add	save_src,t0,src
+	b	.Lbyte_loop
+	sub	save_len,t0,len
+
+.Lcase3:
+1:	ldw,ma 4(srcspc,src), a0
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b .Ldo2
+	ldo 1(len),len
+.Lcase2:
+1:	ldw,ma 4(srcspc,src), a1
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+1:	ldw,ma 4(srcspc,src), a2
+	ASM_EXCEPTIONTABLE_ENTRY(1b,.Lcda_rdfault)
+	b .Ldo1
+	ldo 2(len),len
+
+
+	/* fault exception fixup handlers: */
+#ifdef CONFIG_64BIT
+.Lcopy16_fault:
+	b	.Lcopy_done
+10:	std,ma	t1,8(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+#endif
+
+.Lcopy8_fault:
+	b	.Lcopy_done
+10:	stw,ma	t1,4(dstspc,dst)
+	ASM_EXCEPTIONTABLE_ENTRY(10b,.Lcopy_done)
+
+	.exit
+ENDPROC_CFI(pa_memcpy)
+	.procend
+
 	.end
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/lib/Makefile linux-libre-4.9.52-gnu/arch/parisc/lib/Makefile
--- linux-libre-4.9-gnu/arch/parisc/lib/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/lib/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -2,7 +2,7 @@
 # Makefile for parisc-specific library files
 #
 
-lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \
+lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o memcpy.o \
 	   ucmpdi2.o delay.o
 
 obj-y	:= iomap.o
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/lib/memcpy.c linux-libre-4.9.52-gnu/arch/parisc/lib/memcpy.c
--- linux-libre-4.9-gnu/arch/parisc/lib/memcpy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/lib/memcpy.c	2017-09-27 08:40:05.000000000 -0400
@@ -2,7 +2,7 @@
  *    Optimized memory copy routines.
  *
  *    Copyright (C) 2004 Randolph Chung <tausq@debian.org>
- *    Copyright (C) 2013 Helge Deller <deller@gmx.de>
+ *    Copyright (C) 2013-2017 Helge Deller <deller@gmx.de>
  *
  *    This program is free software; you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
@@ -21,474 +21,21 @@
  *    Portions derived from the GNU C Library
  *    Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc.
  *
- * Several strategies are tried to try to get the best performance for various
- * conditions. In the optimal case, we copy 64-bytes in an unrolled loop using 
- * fp regs. This is followed by loops that copy 32- or 16-bytes at a time using
- * general registers.  Unaligned copies are handled either by aligning the 
- * destination and then using shift-and-write method, or in a few cases by 
- * falling back to a byte-at-a-time copy.
- *
- * I chose to implement this in C because it is easier to maintain and debug,
- * and in my experiments it appears that the C code generated by gcc (3.3/3.4
- * at the time of writing) is fairly optimal. Unfortunately some of the 
- * semantics of the copy routine (exception handling) is difficult to express
- * in C, so we have to play some tricks to get it to work.
- *
- * All the loads and stores are done via explicit asm() code in order to use
- * the right space registers. 
- * 
- * Testing with various alignments and buffer sizes shows that this code is 
- * often >10x faster than a simple byte-at-a-time copy, even for strangely
- * aligned operands. It is interesting to note that the glibc version
- * of memcpy (written in C) is actually quite fast already. This routine is 
- * able to beat it by 30-40% for aligned copies because of the loop unrolling, 
- * but in some cases the glibc version is still slightly faster. This lends 
- * more credibility that gcc can generate very good code as long as we are 
- * careful.
- *
- * TODO:
- * - cache prefetching needs more experimentation to get optimal settings
- * - try not to use the post-increment address modifiers; they create additional
- *   interlocks
- * - replace byte-copy loops with stybs sequences
  */
 
-#ifdef __KERNEL__
 #include <linux/module.h>
 #include <linux/compiler.h>
 #include <linux/uaccess.h>
-#define s_space "%%sr1"
-#define d_space "%%sr2"
-#else
-#include "memcpy.h"
-#define s_space "%%sr0"
-#define d_space "%%sr0"
-#define pa_memcpy new2_copy
-#endif
 
 DECLARE_PER_CPU(struct exception_data, exception_data);
 
-#define preserve_branch(label)	do {					\
-	volatile int dummy = 0;						\
-	/* The following branch is never taken, it's just here to  */	\
-	/* prevent gcc from optimizing away our exception code. */ 	\
-	if (unlikely(dummy != dummy))					\
-		goto label;						\
-} while (0)
-
 #define get_user_space() (segment_eq(get_fs(), KERNEL_DS) ? 0 : mfsp(3))
 #define get_kernel_space() (0)
 
-#define MERGE(w0, sh_1, w1, sh_2)  ({					\
-	unsigned int _r;						\
-	asm volatile (							\
-	"mtsar %3\n"							\
-	"shrpw %1, %2, %%sar, %0\n"					\
-	: "=r"(_r)							\
-	: "r"(w0), "r"(w1), "r"(sh_2)					\
-	);								\
-	_r;								\
-})
-#define THRESHOLD	16
-
-#ifdef DEBUG_MEMCPY
-#define DPRINTF(fmt, args...) do { printk(KERN_DEBUG "%s:%d:%s ", __FILE__, __LINE__, __func__ ); printk(KERN_DEBUG fmt, ##args ); } while (0)
-#else
-#define DPRINTF(fmt, args...)
-#endif
-
-#define def_load_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e)	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma " #_sz "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t), "+r"(_a)				\
-	: 						\
-	: "r8")
-
-#define def_store_ai_insn(_insn,_sz,_tt,_s,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn ",ma %1, " #_sz "(" _s ",%0)\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: "+r"(_a) 					\
-	: _tt(_t)					\
-	: "r8")
-
-#define ldbma(_s, _a, _t, _e) def_load_ai_insn(ldbs,1,"=r",_s,_a,_t,_e)
-#define stbma(_s, _t, _a, _e) def_store_ai_insn(stbs,1,"r",_s,_a,_t,_e)
-#define ldwma(_s, _a, _t, _e) def_load_ai_insn(ldw,4,"=r",_s,_a,_t,_e)
-#define stwma(_s, _t, _a, _e) def_store_ai_insn(stw,4,"r",_s,_a,_t,_e)
-#define flddma(_s, _a, _t, _e) def_load_ai_insn(fldd,8,"=f",_s,_a,_t,_e)
-#define fstdma(_s, _t, _a, _e) def_store_ai_insn(fstd,8,"f",_s,_a,_t,_e)
-
-#define def_load_insn(_insn,_tt,_s,_o,_a,_t,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " " #_o "(" _s ",%1), %0\n\t"	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: _tt(_t) 					\
-	: "r"(_a)					\
-	: "r8")
-
-#define def_store_insn(_insn,_tt,_s,_t,_o,_a,_e) 	\
-	__asm__ __volatile__ (				\
-	"1:\t" #_insn " %0, " #_o "(" _s ",%1)\n\t" 	\
-	ASM_EXCEPTIONTABLE_ENTRY(1b,_e)			\
-	: 						\
-	: _tt(_t), "r"(_a)				\
-	: "r8")
-
-#define ldw(_s,_o,_a,_t,_e)	def_load_insn(ldw,"=r",_s,_o,_a,_t,_e)
-#define stw(_s,_t,_o,_a,_e) 	def_store_insn(stw,"r",_s,_t,_o,_a,_e)
-
-#ifdef  CONFIG_PREFETCH
-static inline void prefetch_src(const void *addr)
-{
-	__asm__("ldw 0(" s_space ",%0), %%r0" : : "r" (addr));
-}
-
-static inline void prefetch_dst(const void *addr)
-{
-	__asm__("ldd 0(" d_space ",%0), %%r0" : : "r" (addr));
-}
-#else
-#define prefetch_src(addr) do { } while(0)
-#define prefetch_dst(addr) do { } while(0)
-#endif
-
-#define PA_MEMCPY_OK		0
-#define PA_MEMCPY_LOAD_ERROR	1
-#define PA_MEMCPY_STORE_ERROR	2
-
-/* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
- * per loop.  This code is derived from glibc. 
- */
-static noinline unsigned long copy_dstaligned(unsigned long dst,
-					unsigned long src, unsigned long len)
-{
-	/* gcc complains that a2 and a3 may be uninitialized, but actually
-	 * they cannot be.  Initialize a2/a3 to shut gcc up.
-	 */
-	register unsigned int a0, a1, a2 = 0, a3 = 0;
-	int sh_1, sh_2;
-
-	/* prefetch_src((const void *)src); */
-
-	/* Calculate how to shift a word read at the memory operation
-	   aligned srcp to make it aligned for copy.  */
-	sh_1 = 8 * (src % sizeof(unsigned int));
-	sh_2 = 8 * sizeof(unsigned int) - sh_1;
-
-	/* Make src aligned by rounding it down.  */
-	src &= -sizeof(unsigned int);
-
-	switch (len % 4)
-	{
-		case 2:
-			/* a1 = ((unsigned int *) src)[0];
-			   a2 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a1, cda_ldw_exc);
-			ldw(s_space, 4, src, a2, cda_ldw_exc);
-			src -= 1 * sizeof(unsigned int);
-			dst -= 3 * sizeof(unsigned int);
-			len += 2;
-			goto do1;
-		case 3:
-			/* a0 = ((unsigned int *) src)[0];
-			   a1 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a0, cda_ldw_exc);
-			ldw(s_space, 4, src, a1, cda_ldw_exc);
-			src -= 0 * sizeof(unsigned int);
-			dst -= 2 * sizeof(unsigned int);
-			len += 1;
-			goto do2;
-		case 0:
-			if (len == 0)
-				return PA_MEMCPY_OK;
-			/* a3 = ((unsigned int *) src)[0];
-			   a0 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a3, cda_ldw_exc);
-			ldw(s_space, 4, src, a0, cda_ldw_exc);
-			src -=-1 * sizeof(unsigned int);
-			dst -= 1 * sizeof(unsigned int);
-			len += 0;
-			goto do3;
-		case 1:
-			/* a2 = ((unsigned int *) src)[0];
-			   a3 = ((unsigned int *) src)[1]; */
-			ldw(s_space, 0, src, a2, cda_ldw_exc);
-			ldw(s_space, 4, src, a3, cda_ldw_exc);
-			src -=-2 * sizeof(unsigned int);
-			dst -= 0 * sizeof(unsigned int);
-			len -= 1;
-			if (len == 0)
-				goto do0;
-			goto do4;			/* No-op.  */
-	}
-
-	do
-	{
-		/* prefetch_src((const void *)(src + 4 * sizeof(unsigned int))); */
-do4:
-		/* a0 = ((unsigned int *) src)[0]; */
-		ldw(s_space, 0, src, a0, cda_ldw_exc);
-		/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-		stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-do3:
-		/* a1 = ((unsigned int *) src)[1]; */
-		ldw(s_space, 4, src, a1, cda_ldw_exc);
-		/* ((unsigned int *) dst)[1] = MERGE (a3, sh_1, a0, sh_2); */
-		stw(d_space, MERGE (a3, sh_1, a0, sh_2), 4, dst, cda_stw_exc);
-do2:
-		/* a2 = ((unsigned int *) src)[2]; */
-		ldw(s_space, 8, src, a2, cda_ldw_exc);
-		/* ((unsigned int *) dst)[2] = MERGE (a0, sh_1, a1, sh_2); */
-		stw(d_space, MERGE (a0, sh_1, a1, sh_2), 8, dst, cda_stw_exc);
-do1:
-		/* a3 = ((unsigned int *) src)[3]; */
-		ldw(s_space, 12, src, a3, cda_ldw_exc);
-		/* ((unsigned int *) dst)[3] = MERGE (a1, sh_1, a2, sh_2); */
-		stw(d_space, MERGE (a1, sh_1, a2, sh_2), 12, dst, cda_stw_exc);
-
-		src += 4 * sizeof(unsigned int);
-		dst += 4 * sizeof(unsigned int);
-		len -= 4;
-	}
-	while (len != 0);
-
-do0:
-	/* ((unsigned int *) dst)[0] = MERGE (a2, sh_1, a3, sh_2); */
-	stw(d_space, MERGE (a2, sh_1, a3, sh_2), 0, dst, cda_stw_exc);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	return PA_MEMCPY_OK;
-
-handle_load_error:
-	__asm__ __volatile__ ("cda_ldw_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("cda_stw_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
-/* Returns PA_MEMCPY_OK, PA_MEMCPY_LOAD_ERROR or PA_MEMCPY_STORE_ERROR.
- * In case of an access fault the faulty address can be read from the per_cpu
- * exception data struct. */
-static noinline unsigned long pa_memcpy_internal(void *dstp, const void *srcp,
-					unsigned long len)
-{
-	register unsigned long src, dst, t1, t2, t3;
-	register unsigned char *pcs, *pcd;
-	register unsigned int *pws, *pwd;
-	register double *pds, *pdd;
-	unsigned long ret;
-
-	src = (unsigned long)srcp;
-	dst = (unsigned long)dstp;
-	pcs = (unsigned char *)srcp;
-	pcd = (unsigned char *)dstp;
-
-	/* prefetch_src((const void *)srcp); */
-
-	if (len < THRESHOLD)
-		goto byte_copy;
-
-	/* Check alignment */
-	t1 = (src ^ dst);
-	if (unlikely(t1 & (sizeof(double)-1)))
-		goto unaligned_copy;
-
-	/* src and dst have same alignment. */
-
-	/* Copy bytes till we are double-aligned. */
-	t2 = src & (sizeof(double) - 1);
-	if (unlikely(t2 != 0)) {
-		t2 = sizeof(double) - t2;
-		while (t2 && len) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			len--;
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			t2--;
-		}
-	}
-
-	pds = (double *)pcs;
-	pdd = (double *)pcd;
-
-#if 0
-	/* Copy 8 doubles at a time */
-	while (len >= 8*sizeof(double)) {
-		register double r1, r2, r3, r4, r5, r6, r7, r8;
-		/* prefetch_src((char *)pds + L1_CACHE_BYTES); */
-		flddma(s_space, pds, r1, pmc_load_exc);
-		flddma(s_space, pds, r2, pmc_load_exc);
-		flddma(s_space, pds, r3, pmc_load_exc);
-		flddma(s_space, pds, r4, pmc_load_exc);
-		fstdma(d_space, r1, pdd, pmc_store_exc);
-		fstdma(d_space, r2, pdd, pmc_store_exc);
-		fstdma(d_space, r3, pdd, pmc_store_exc);
-		fstdma(d_space, r4, pdd, pmc_store_exc);
-
-#if 0
-		if (L1_CACHE_BYTES <= 32)
-			prefetch_src((char *)pds + L1_CACHE_BYTES);
-#endif
-		flddma(s_space, pds, r5, pmc_load_exc);
-		flddma(s_space, pds, r6, pmc_load_exc);
-		flddma(s_space, pds, r7, pmc_load_exc);
-		flddma(s_space, pds, r8, pmc_load_exc);
-		fstdma(d_space, r5, pdd, pmc_store_exc);
-		fstdma(d_space, r6, pdd, pmc_store_exc);
-		fstdma(d_space, r7, pdd, pmc_store_exc);
-		fstdma(d_space, r8, pdd, pmc_store_exc);
-		len -= 8*sizeof(double);
-	}
-#endif
-
-	pws = (unsigned int *)pds;
-	pwd = (unsigned int *)pdd;
-
-word_copy:
-	while (len >= 8*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4,r5,r6,r7,r8;
-		/* prefetch_src((char *)pws + L1_CACHE_BYTES); */
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-
-		ldwma(s_space, pws, r5, pmc_load_exc);
-		ldwma(s_space, pws, r6, pmc_load_exc);
-		ldwma(s_space, pws, r7, pmc_load_exc);
-		ldwma(s_space, pws, r8, pmc_load_exc);
-		stwma(d_space, r5, pwd, pmc_store_exc);
-		stwma(d_space, r6, pwd, pmc_store_exc);
-		stwma(d_space, r7, pwd, pmc_store_exc);
-		stwma(d_space, r8, pwd, pmc_store_exc);
-		len -= 8*sizeof(unsigned int);
-	}
-
-	while (len >= 4*sizeof(unsigned int)) {
-		register unsigned int r1,r2,r3,r4;
-		ldwma(s_space, pws, r1, pmc_load_exc);
-		ldwma(s_space, pws, r2, pmc_load_exc);
-		ldwma(s_space, pws, r3, pmc_load_exc);
-		ldwma(s_space, pws, r4, pmc_load_exc);
-		stwma(d_space, r1, pwd, pmc_store_exc);
-		stwma(d_space, r2, pwd, pmc_store_exc);
-		stwma(d_space, r3, pwd, pmc_store_exc);
-		stwma(d_space, r4, pwd, pmc_store_exc);
-		len -= 4*sizeof(unsigned int);
-	}
-
-	pcs = (unsigned char *)pws;
-	pcd = (unsigned char *)pwd;
-
-byte_copy:
-	while (len) {
-		/* *pcd++ = *pcs++; */
-		ldbma(s_space, pcs, t3, pmc_load_exc);
-		stbma(d_space, t3, pcd, pmc_store_exc);
-		len--;
-	}
-
-	return PA_MEMCPY_OK;
-
-unaligned_copy:
-	/* possibly we are aligned on a word, but not on a double... */
-	if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
-		t2 = src & (sizeof(unsigned int) - 1);
-
-		if (unlikely(t2 != 0)) {
-			t2 = sizeof(unsigned int) - t2;
-			while (t2) {
-				/* *pcd++ = *pcs++; */
-				ldbma(s_space, pcs, t3, pmc_load_exc);
-				stbma(d_space, t3, pcd, pmc_store_exc);
-				len--;
-				t2--;
-			}
-		}
-
-		pws = (unsigned int *)pcs;
-		pwd = (unsigned int *)pcd;
-		goto word_copy;
-	}
-
-	/* Align the destination.  */
-	if (unlikely((dst & (sizeof(unsigned int) - 1)) != 0)) {
-		t2 = sizeof(unsigned int) - (dst & (sizeof(unsigned int) - 1));
-		while (t2) {
-			/* *pcd++ = *pcs++; */
-			ldbma(s_space, pcs, t3, pmc_load_exc);
-			stbma(d_space, t3, pcd, pmc_store_exc);
-			len--;
-			t2--;
-		}
-		dst = (unsigned long)pcd;
-		src = (unsigned long)pcs;
-	}
-
-	ret = copy_dstaligned(dst, src, len / sizeof(unsigned int));
-	if (ret)
-		return ret;
-
-	pcs += (len & -sizeof(unsigned int));
-	pcd += (len & -sizeof(unsigned int));
-	len %= sizeof(unsigned int);
-
-	preserve_branch(handle_load_error);
-	preserve_branch(handle_store_error);
-
-	goto byte_copy;
-
-handle_load_error:
-	__asm__ __volatile__ ("pmc_load_exc:\n");
-	return PA_MEMCPY_LOAD_ERROR;
-
-handle_store_error:
-	__asm__ __volatile__ ("pmc_store_exc:\n");
-	return PA_MEMCPY_STORE_ERROR;
-}
-
-
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
-static unsigned long pa_memcpy(void *dstp, const void *srcp, unsigned long len)
-{
-	unsigned long ret, fault_addr, reference;
-	struct exception_data *d;
-
-	ret = pa_memcpy_internal(dstp, srcp, len);
-	if (likely(ret == PA_MEMCPY_OK))
-		return 0;
-
-	/* if a load or store fault occured we can get the faulty addr */
-	d = this_cpu_ptr(&exception_data);
-	fault_addr = d->fault_addr;
-
-	/* error in load or store? */
-	if (ret == PA_MEMCPY_LOAD_ERROR)
-		reference = (unsigned long) srcp;
-	else
-		reference = (unsigned long) dstp;
-
-	DPRINTF("pa_memcpy: fault type = %lu, len=%lu fault_addr=%lu ref=%lu\n",
-		ret, len, fault_addr, reference);
-
-	if (fault_addr >= reference)
-		return len - (fault_addr - reference);
-	else
-		return len;
-}
+extern unsigned long pa_memcpy(void *dst, const void *src,
+				unsigned long len);
 
-#ifdef __KERNEL__
 unsigned long __copy_to_user(void __user *dst, const void *src,
 			     unsigned long len)
 {
@@ -537,5 +84,3 @@ long probe_kernel_read(void *dst, const
 
 	return __probe_kernel_read(dst, src, size);
 }
-
-#endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/parisc/mm/fault.c linux-libre-4.9.52-gnu/arch/parisc/mm/fault.c
--- linux-libre-4.9-gnu/arch/parisc/mm/fault.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/parisc/mm/fault.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,6 +149,23 @@ int fixup_exception(struct pt_regs *regs
 		d->fault_space = regs->isr;
 		d->fault_addr = regs->ior;
 
+		/*
+		 * Fix up get_user() and put_user().
+		 * ASM_EXCEPTIONTABLE_ENTRY_EFAULT() sets the least-significant
+		 * bit in the relative address of the fixup routine to indicate
+		 * that %r8 should be loaded with -EFAULT to report a userspace
+		 * access error.
+		 */
+		if (fix->fixup & 1) {
+			regs->gr[8] = -EFAULT;
+
+			/* zero target register for get_user() */
+			if (parisc_acctyp(0, regs->iir) == VM_READ) {
+				int treg = regs->iir & 0x1f;
+				regs->gr[treg] = 0;
+			}
+		}
+
 		regs->iaoq[0] = (unsigned long)&fix->fixup + fix->fixup;
 		regs->iaoq[0] &= ~3;
 		/*
@@ -234,7 +251,7 @@ show_signal_msg(struct pt_regs *regs, un
 	    tsk->comm, code, address);
 	print_vma_addr(KERN_CONT " in ", regs->iaoq[0]);
 
-	pr_cont(" trap #%lu: %s%c", code, trap_name(code),
+	pr_cont("\ntrap #%lu: %s%c", code, trap_name(code),
 		vma ? ',':'\n');
 
 	if (vma)
@@ -349,7 +366,7 @@ bad_area:
 		case 15:	/* Data TLB miss fault/Data page fault */
 			/* send SIGSEGV when outside of vma */
 			if (!vma ||
-			    address < vma->vm_start || address > vma->vm_end) {
+			    address < vma->vm_start || address >= vma->vm_end) {
 				si.si_signo = SIGSEGV;
 				si.si_code = SEGV_MAPERR;
 				break;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/boot/ps3.c linux-libre-4.9.52-gnu/arch/powerpc/boot/ps3.c
--- linux-libre-4.9-gnu/arch/powerpc/boot/ps3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/boot/ps3.c	2017-09-27 08:40:05.000000000 -0400
@@ -119,13 +119,12 @@ void ps3_copy_vectors(void)
 	flush_cache((void *)0x100, 512);
 }
 
-void platform_init(unsigned long null_check)
+void platform_init(void)
 {
 	const u32 heapsize = 0x1000000 - (u32)_end; /* 16MiB */
 	void *chosen;
 	unsigned long ft_addr;
 	u64 rm_size;
-	unsigned long val;
 
 	console_ops.write = ps3_console_write;
 	platform_ops.exit = ps3_exit;
@@ -153,11 +152,6 @@ void platform_init(unsigned long null_ch
 
 	printf(" flat tree at 0x%lx\n\r", ft_addr);
 
-	val = *(unsigned long *)0;
-
-	if (val != null_check)
-		printf("null check failed: %lx != %lx\n\r", val, null_check);
-
 	((kernel_entry_t)0)(ft_addr, 0, NULL);
 
 	ps3_exit();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/boot/ps3-head.S linux-libre-4.9.52-gnu/arch/powerpc/boot/ps3-head.S
--- linux-libre-4.9-gnu/arch/powerpc/boot/ps3-head.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/boot/ps3-head.S	2017-09-27 08:40:05.000000000 -0400
@@ -57,11 +57,6 @@ __system_reset_overlay:
 	bctr
 
 1:
-	/* Save the value at addr zero for a null pointer write check later. */
-
-	li	r4, 0
-	lwz	r3, 0(r4)
-
 	/* Primary delays then goes to _zimage_start in wrapper. */
 
 	or	31, 31, 31 /* db16cyc */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/boot/wrapper linux-libre-4.9.52-gnu/arch/powerpc/boot/wrapper
--- linux-libre-4.9-gnu/arch/powerpc/boot/wrapper	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/boot/wrapper	2017-09-27 08:40:05.000000000 -0400
@@ -181,6 +181,28 @@ case "$elfformat" in
     elf32-powerpc)	format=elf32ppc	;;
 esac
 
+ld_version()
+{
+    # Poached from scripts/ld-version.sh, but we don't want to call that because
+    # this script (wrapper) is distributed separately from the kernel source.
+    # Extract linker version number from stdin and turn into single number.
+    awk '{
+	gsub(".*\\)", "");
+	gsub(".*version ", "");
+	gsub("-.*", "");
+	split($1,a, ".");
+	print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
+	exit
+    }'
+}
+
+# Do not include PT_INTERP segment when linking pie. Non-pie linking
+# just ignores this option.
+LD_VERSION=$(${CROSS}ld --version | ld_version)
+LD_NO_DL_MIN_VERSION=$(echo 2.26 | ld_version)
+if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VERSION" ] ; then
+	nodl="--no-dynamic-linker"
+fi
 
 platformo=$object/"$platform".o
 lds=$object/zImage.lds
@@ -446,7 +468,7 @@ if [ "$platform" != "miboot" ]; then
         text_start="-Ttext $link_address"
     fi
 #link everything
-    ${CROSS}ld -m $format -T $lds $text_start $pie -o "$ofile" \
+    ${CROSS}ld -m $format -T $lds $text_start $pie $nodl -o "$ofile" \
 	$platformo $tmp $object/wrapper.a
     rm $tmp
 fi
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/boot/zImage.lds.S linux-libre-4.9.52-gnu/arch/powerpc/boot/zImage.lds.S
--- linux-libre-4.9-gnu/arch/powerpc/boot/zImage.lds.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/boot/zImage.lds.S	2017-09-27 08:40:05.000000000 -0400
@@ -68,6 +68,7 @@ SECTIONS
   }
 
 #ifdef CONFIG_PPC64_BOOT_WRAPPER
+  . = ALIGN(256);
   .got :
   {
     __toc_start = .;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/crypto/crc32c-vpmsum_glue.c linux-libre-4.9.52-gnu/arch/powerpc/crypto/crc32c-vpmsum_glue.c
--- linux-libre-4.9-gnu/arch/powerpc/crypto/crc32c-vpmsum_glue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/crypto/crc32c-vpmsum_glue.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,10 +33,13 @@ static u32 crc32c_vpmsum(u32 crc, unsign
 	}
 
 	if (len & ~VMX_ALIGN_MASK) {
+		preempt_disable();
 		pagefault_disable();
 		enable_kernel_altivec();
 		crc = __crc32c_vpmsum(crc, p, len & ~VMX_ALIGN_MASK);
+		disable_kernel_altivec();
 		pagefault_enable();
+		preempt_enable();
 	}
 
 	tail = len & VMX_ALIGN_MASK;
@@ -52,7 +55,7 @@ static int crc32c_vpmsum_cra_init(struct
 {
 	u32 *key = crypto_tfm_ctx(tfm);
 
-	*key = 0;
+	*key = ~0;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/atomic.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/atomic.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/atomic.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/atomic.h	2017-09-27 08:40:05.000000000 -0400
@@ -560,7 +560,7 @@ static __inline__ int atomic64_add_unles
  * Atomically increments @v by 1, so long as @v is non-zero.
  * Returns non-zero if @v was non-zero, and zero otherwise.
  */
-static __inline__ long atomic64_inc_not_zero(atomic64_t *v)
+static __inline__ int atomic64_inc_not_zero(atomic64_t *v)
 {
 	long t1, t2;
 
@@ -579,7 +579,7 @@ static __inline__ long atomic64_inc_not_
 	: "r" (&v->counter)
 	: "cc", "xer", "memory");
 
-	return t1;
+	return t1 != 0;
 }
 
 #endif /* __powerpc64__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/book3s/64/mmu-hash.h	2017-09-27 08:40:05.000000000 -0400
@@ -70,7 +70,9 @@
 
 #define HPTE_V_SSIZE_SHIFT	62
 #define HPTE_V_AVPN_SHIFT	7
+#define HPTE_V_COMMON_BITS	ASM_CONST(0x000fffffffffffff)
 #define HPTE_V_AVPN		ASM_CONST(0x3fffffffffffff80)
+#define HPTE_V_AVPN_3_0		ASM_CONST(0x000fffffffffff80)
 #define HPTE_V_AVPN_VAL(x)	(((x) & HPTE_V_AVPN) >> HPTE_V_AVPN_SHIFT)
 #define HPTE_V_COMPARE(x,y)	(!(((x) ^ (y)) & 0xffffffffffffff80UL))
 #define HPTE_V_BOLTED		ASM_CONST(0x0000000000000010)
@@ -80,14 +82,16 @@
 #define HPTE_V_VALID		ASM_CONST(0x0000000000000001)
 
 /*
- * ISA 3.0 have a different HPTE format.
+ * ISA 3.0 has a different HPTE format.
  */
 #define HPTE_R_3_0_SSIZE_SHIFT	58
+#define HPTE_R_3_0_SSIZE_MASK	(3ull << HPTE_R_3_0_SSIZE_SHIFT)
 #define HPTE_R_PP0		ASM_CONST(0x8000000000000000)
 #define HPTE_R_TS		ASM_CONST(0x4000000000000000)
 #define HPTE_R_KEY_HI		ASM_CONST(0x3000000000000000)
 #define HPTE_R_RPN_SHIFT	12
 #define HPTE_R_RPN		ASM_CONST(0x0ffffffffffff000)
+#define HPTE_R_RPN_3_0		ASM_CONST(0x01fffffffffff000)
 #define HPTE_R_PP		ASM_CONST(0x0000000000000003)
 #define HPTE_R_PPP		ASM_CONST(0x8000000000000003)
 #define HPTE_R_N		ASM_CONST(0x0000000000000004)
@@ -316,12 +320,43 @@ static inline unsigned long hpte_encode_
 	 */
 	v = (vpn >> (23 - VPN_SHIFT)) & ~(mmu_psize_defs[psize].avpnm);
 	v <<= HPTE_V_AVPN_SHIFT;
-	if (!cpu_has_feature(CPU_FTR_ARCH_300))
-		v |= ((unsigned long) ssize) << HPTE_V_SSIZE_SHIFT;
+	v |= ((unsigned long) ssize) << HPTE_V_SSIZE_SHIFT;
 	return v;
 }
 
 /*
+ * ISA v3.0 defines a new HPTE format, which differs from the old
+ * format in having smaller AVPN and ARPN fields, and the B field
+ * in the second dword instead of the first.
+ */
+static inline unsigned long hpte_old_to_new_v(unsigned long v)
+{
+	/* trim AVPN, drop B */
+	return v & HPTE_V_COMMON_BITS;
+}
+
+static inline unsigned long hpte_old_to_new_r(unsigned long v, unsigned long r)
+{
+	/* move B field from 1st to 2nd dword, trim ARPN */
+	return (r & ~HPTE_R_3_0_SSIZE_MASK) |
+		(((v) >> HPTE_V_SSIZE_SHIFT) << HPTE_R_3_0_SSIZE_SHIFT);
+}
+
+static inline unsigned long hpte_new_to_old_v(unsigned long v, unsigned long r)
+{
+	/* insert B field */
+	return (v & HPTE_V_COMMON_BITS) |
+		((r & HPTE_R_3_0_SSIZE_MASK) <<
+		 (HPTE_V_SSIZE_SHIFT - HPTE_R_3_0_SSIZE_SHIFT));
+}
+
+static inline unsigned long hpte_new_to_old_r(unsigned long r)
+{
+	/* clear out B field */
+	return r & ~HPTE_R_3_0_SSIZE_MASK;
+}
+
+/*
  * This function sets the AVPN and L fields of the HPTE  appropriately
  * using the base page size and actual page size.
  */
@@ -341,12 +376,8 @@ static inline unsigned long hpte_encode_
  * aligned for the requested page size
  */
 static inline unsigned long hpte_encode_r(unsigned long pa, int base_psize,
-					  int actual_psize, int ssize)
+					  int actual_psize)
 {
-
-	if (cpu_has_feature(CPU_FTR_ARCH_300))
-		pa |= ((unsigned long) ssize) << HPTE_R_3_0_SSIZE_SHIFT;
-
 	/* A 4K page needs no special encoding */
 	if (actual_psize == MMU_PAGE_4K)
 		return pa & HPTE_R_RPN;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/cpu_has_feature.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/cpu_has_feature.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/cpu_has_feature.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/cpu_has_feature.h	2017-09-27 08:40:05.000000000 -0400
@@ -23,7 +23,9 @@ static __always_inline bool cpu_has_feat
 {
 	int i;
 
+#ifndef __clang__ /* clang can't cope with this */
 	BUILD_BUG_ON(!__builtin_constant_p(feature));
+#endif
 
 #ifdef CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG
 	if (!static_key_initialized) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/elf.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/elf.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/elf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/elf.h	2017-09-27 08:40:05.000000000 -0400
@@ -23,12 +23,13 @@
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE	0x20000000
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE		(is_32bit_task() ? 0x000400000UL : \
+						   0x100000000UL)
 
 #define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/kvm_host.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/kvm_host.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/kvm_host.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/kvm_host.h	2017-09-27 08:40:05.000000000 -0400
@@ -546,6 +546,7 @@ struct kvm_vcpu_arch {
 	u64 tfiar;
 
 	u32 cr_tm;
+	u64 xer_tm;
 	u64 lr_tm;
 	u64 ctr_tm;
 	u64 amr_tm;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/mmu_context.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/mmu_context.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/mmu_context.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/mmu_context.h	2017-09-27 08:40:05.000000000 -0400
@@ -19,16 +19,18 @@ extern void destroy_context(struct mm_st
 struct mm_iommu_table_group_mem_t;
 
 extern int isolate_lru_page(struct page *page);	/* from internal.h */
-extern bool mm_iommu_preregistered(void);
-extern long mm_iommu_get(unsigned long ua, unsigned long entries,
+extern bool mm_iommu_preregistered(struct mm_struct *mm);
+extern long mm_iommu_get(struct mm_struct *mm,
+		unsigned long ua, unsigned long entries,
 		struct mm_iommu_table_group_mem_t **pmem);
-extern long mm_iommu_put(struct mm_iommu_table_group_mem_t *mem);
-extern void mm_iommu_init(mm_context_t *ctx);
-extern void mm_iommu_cleanup(mm_context_t *ctx);
-extern struct mm_iommu_table_group_mem_t *mm_iommu_lookup(unsigned long ua,
-		unsigned long size);
-extern struct mm_iommu_table_group_mem_t *mm_iommu_find(unsigned long ua,
-		unsigned long entries);
+extern long mm_iommu_put(struct mm_struct *mm,
+		struct mm_iommu_table_group_mem_t *mem);
+extern void mm_iommu_init(struct mm_struct *mm);
+extern void mm_iommu_cleanup(struct mm_struct *mm);
+extern struct mm_iommu_table_group_mem_t *mm_iommu_lookup(struct mm_struct *mm,
+		unsigned long ua, unsigned long size);
+extern struct mm_iommu_table_group_mem_t *mm_iommu_find(struct mm_struct *mm,
+		unsigned long ua, unsigned long entries);
 extern long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem,
 		unsigned long ua, unsigned long *hpa);
 extern long mm_iommu_mapped_inc(struct mm_iommu_table_group_mem_t *mem);
@@ -68,13 +70,32 @@ extern void drop_cop(unsigned long acop,
  * switch_mm is the entry point called from the architecture independent
  * code in kernel/sched/core.c
  */
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
-			     struct task_struct *tsk)
+static inline void switch_mm_irqs_off(struct mm_struct *prev,
+				      struct mm_struct *next,
+				      struct task_struct *tsk)
 {
 	/* Mark this context has been used on the new CPU */
-	if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next)))
+	if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next))) {
 		cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
 
+		/*
+		 * This full barrier orders the store to the cpumask above vs
+		 * a subsequent operation which allows this CPU to begin loading
+		 * translations for next.
+		 *
+		 * When using the radix MMU that operation is the load of the
+		 * MMU context id, which is then moved to SPRN_PID.
+		 *
+		 * For the hash MMU it is either the first load from slb_cache
+		 * in switch_slb(), and/or the store of paca->mm_ctx_id in
+		 * copy_mm_to_paca().
+		 *
+		 * On the read side the barrier is in pte_xchg(), which orders
+		 * the store to the PTE vs the load of mm_cpumask.
+		 */
+		smp_mb();
+	}
+
 	/* 32-bit keeps track of the current PGDIR in the thread struct */
 #ifdef CONFIG_PPC32
 	tsk->thread.pgdir = next->pgd;
@@ -108,6 +129,18 @@ static inline void switch_mm(struct mm_s
 	switch_mmu_context(prev, next, tsk);
 }
 
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+			     struct task_struct *tsk)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	switch_mm_irqs_off(prev, next, tsk);
+	local_irq_restore(flags);
+}
+#define switch_mm_irqs_off switch_mm_irqs_off
+
+
 #define deactivate_mm(tsk,mm)	do { } while (0)
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/mmu.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/mmu.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/mmu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/mmu.h	2017-09-27 08:40:05.000000000 -0400
@@ -136,6 +136,7 @@ enum {
 		MMU_FTR_NO_SLBIE_B | MMU_FTR_16M_PAGE | MMU_FTR_TLBIEL |
 		MMU_FTR_LOCKLESS_TLBIE | MMU_FTR_CI_LARGE_PAGE |
 		MMU_FTR_1T_SEGMENT | MMU_FTR_TLBIE_CROP_VA |
+		MMU_FTR_KERNEL_RO |
 #ifdef CONFIG_PPC_RADIX_MMU
 		MMU_FTR_TYPE_RADIX |
 #endif
@@ -160,7 +161,9 @@ static __always_inline bool mmu_has_feat
 {
 	int i;
 
+#ifndef __clang__ /* clang can't cope with this */
 	BUILD_BUG_ON(!__builtin_constant_p(feature));
+#endif
 
 #ifdef CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG
 	if (!static_key_initialized) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/pgtable-be-types.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/pgtable-be-types.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/pgtable-be-types.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/pgtable-be-types.h	2017-09-27 08:40:05.000000000 -0400
@@ -87,6 +87,7 @@ static inline bool pte_xchg(pte_t *ptep,
 	unsigned long *p = (unsigned long *)ptep;
 	__be64 prev;
 
+	/* See comment in switch_mm_irqs_off() */
 	prev = (__force __be64)__cmpxchg_u64(p, (__force unsigned long)pte_raw(old),
 					     (__force unsigned long)pte_raw(new));
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/pgtable-types.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/pgtable-types.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/pgtable-types.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/pgtable-types.h	2017-09-27 08:40:05.000000000 -0400
@@ -62,6 +62,7 @@ static inline bool pte_xchg(pte_t *ptep,
 {
 	unsigned long *p = (unsigned long *)ptep;
 
+	/* See comment in switch_mm_irqs_off() */
 	return pte_val(old) == __cmpxchg_u64(p, pte_val(old), pte_val(new));
 }
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/ppc-opcode.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/ppc-opcode.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/ppc-opcode.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/ppc-opcode.h	2017-09-27 08:40:05.000000000 -0400
@@ -157,7 +157,7 @@
 #define PPC_INST_MCRXR			0x7c000400
 #define PPC_INST_MCRXR_MASK		0xfc0007fe
 #define PPC_INST_MFSPR_PVR		0x7c1f42a6
-#define PPC_INST_MFSPR_PVR_MASK		0xfc1fffff
+#define PPC_INST_MFSPR_PVR_MASK		0xfc1ffffe
 #define PPC_INST_MFTMR			0x7c0002dc
 #define PPC_INST_MSGSND			0x7c00019c
 #define PPC_INST_MSGCLR			0x7c0001dc
@@ -174,13 +174,13 @@
 #define PPC_INST_RFDI			0x4c00004e
 #define PPC_INST_RFMCI			0x4c00004c
 #define PPC_INST_MFSPR_DSCR		0x7c1102a6
-#define PPC_INST_MFSPR_DSCR_MASK	0xfc1fffff
+#define PPC_INST_MFSPR_DSCR_MASK	0xfc1ffffe
 #define PPC_INST_MTSPR_DSCR		0x7c1103a6
-#define PPC_INST_MTSPR_DSCR_MASK	0xfc1fffff
+#define PPC_INST_MTSPR_DSCR_MASK	0xfc1ffffe
 #define PPC_INST_MFSPR_DSCR_USER	0x7c0302a6
-#define PPC_INST_MFSPR_DSCR_USER_MASK	0xfc1fffff
+#define PPC_INST_MFSPR_DSCR_USER_MASK	0xfc1ffffe
 #define PPC_INST_MTSPR_DSCR_USER	0x7c0303a6
-#define PPC_INST_MTSPR_DSCR_USER_MASK	0xfc1fffff
+#define PPC_INST_MTSPR_DSCR_USER_MASK	0xfc1ffffe
 #define PPC_INST_MFVSRD			0x7c000066
 #define PPC_INST_MTVSRD			0x7c000166
 #define PPC_INST_SLBFEE			0x7c0007a7
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/reg.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/reg.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/reg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/reg.h	2017-09-27 08:40:05.000000000 -0400
@@ -337,7 +337,7 @@
 #define   LPCR_DPFD_SH		52
 #define   LPCR_DPFD		(ASM_CONST(7) << LPCR_DPFD_SH)
 #define   LPCR_VRMASD_SH	47
-#define   LPCR_VRMASD		(ASM_CONST(1) << LPCR_VRMASD_SH)
+#define   LPCR_VRMASD		(ASM_CONST(0x1f) << LPCR_VRMASD_SH)
 #define   LPCR_VRMA_L		ASM_CONST(0x0008000000000000)
 #define   LPCR_VRMA_LP0		ASM_CONST(0x0001000000000000)
 #define   LPCR_VRMA_LP1		ASM_CONST(0x0000800000000000)
@@ -641,9 +641,10 @@
 #define   SRR1_ISI_N_OR_G	0x10000000 /* ISI: Access is no-exec or G */
 #define   SRR1_ISI_PROT		0x08000000 /* ISI: Other protection fault */
 #define   SRR1_WAKEMASK		0x00380000 /* reason for wakeup */
-#define   SRR1_WAKEMASK_P8	0x003c0000 /* reason for wakeup on POWER8 */
+#define   SRR1_WAKEMASK_P8	0x003c0000 /* reason for wakeup on POWER8 and 9 */
 #define   SRR1_WAKESYSERR	0x00300000 /* System error */
 #define   SRR1_WAKEEE		0x00200000 /* External interrupt */
+#define   SRR1_WAKEHVI		0x00240000 /* Hypervisor Virtualization Interrupt (P9) */
 #define   SRR1_WAKEMT		0x00280000 /* mtctrl */
 #define	  SRR1_WAKEHMI		0x00280000 /* Hypervisor maintenance */
 #define   SRR1_WAKEDEC		0x00180000 /* Decrementer interrupt */
@@ -1282,7 +1283,7 @@ static inline void msr_check_and_clear(u
 				"	.llong 0\n"			\
 				".previous"				\
 			: "=r" (rval) \
-			: "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL)); \
+			: "i" (CPU_FTR_CELL_TB_BUG), "i" (SPRN_TBRL) : "cr0"); \
 			rval;})
 #else
 #define mftb()		({unsigned long rval;	\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/asm/xics.h linux-libre-4.9.52-gnu/arch/powerpc/include/asm/xics.h
--- linux-libre-4.9-gnu/arch/powerpc/include/asm/xics.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/asm/xics.h	2017-09-27 08:40:05.000000000 -0400
@@ -44,6 +44,7 @@ static inline int icp_hv_init(void) { re
 
 #ifdef CONFIG_PPC_POWERNV
 extern int icp_opal_init(void);
+extern void icp_opal_flush_interrupt(void);
 #else
 static inline int icp_opal_init(void) { return -ENODEV; }
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/include/uapi/asm/kvm.h linux-libre-4.9.52-gnu/arch/powerpc/include/uapi/asm/kvm.h
--- linux-libre-4.9-gnu/arch/powerpc/include/uapi/asm/kvm.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/include/uapi/asm/kvm.h	2017-09-27 08:40:05.000000000 -0400
@@ -596,6 +596,7 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_TM_VSCR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U32 | 0x67)
 #define KVM_REG_PPC_TM_DSCR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x68)
 #define KVM_REG_PPC_TM_TAR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x69)
+#define KVM_REG_PPC_TM_XER	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x6a)
 
 /* PPC64 eXternal Interrupt Controller Specification */
 #define KVM_DEV_XICS_GRP_SOURCES	1	/* 64-bit source attributes */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/Kconfig linux-libre-4.9.52-gnu/arch/powerpc/Kconfig
--- linux-libre-4.9-gnu/arch/powerpc/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -388,8 +388,8 @@ config DISABLE_MPROFILE_KERNEL
 	  be disabled also.
 
 	  If you have a toolchain which supports mprofile-kernel, then you can
-	  enable this. Otherwise leave it disabled. If you're not sure, say
-	  "N".
+	  disable this. Otherwise leave it enabled. If you're not sure, say
+	  "Y".
 
 config MPROFILE_KERNEL
 	depends on PPC64 && CPU_LITTLE_ENDIAN
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/align.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/align.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/align.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/align.c	2017-09-27 08:40:05.000000000 -0400
@@ -235,6 +235,28 @@ static int emulate_dcbz(struct pt_regs *
 
 #define SWIZ_PTR(p)		((unsigned char __user *)((p) ^ swiz))
 
+#define __get_user_or_set_dar(_regs, _dest, _addr)		\
+	({							\
+		int rc = 0;					\
+		typeof(_addr) __addr = (_addr);			\
+		if (__get_user_inatomic(_dest, __addr)) {	\
+			_regs->dar = (unsigned long)__addr;	\
+			rc = -EFAULT;				\
+		}						\
+		rc;						\
+	})
+
+#define __put_user_or_set_dar(_regs, _src, _addr)		\
+	({							\
+		int rc = 0;					\
+		typeof(_addr) __addr = (_addr);			\
+		if (__put_user_inatomic(_src, __addr)) {	\
+			_regs->dar = (unsigned long)__addr;	\
+			rc = -EFAULT;				\
+		}						\
+		rc;						\
+	})
+
 static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 			    unsigned int reg, unsigned int nb,
 			    unsigned int flags, unsigned int instr,
@@ -263,9 +285,10 @@ static int emulate_multiple(struct pt_re
 		} else {
 			unsigned long pc = regs->nip ^ (swiz & 4);
 
-			if (__get_user_inatomic(instr,
-						(unsigned int __user *)pc))
+			if (__get_user_or_set_dar(regs, instr,
+						  (unsigned int __user *)pc))
 				return -EFAULT;
+
 			if (swiz == 0 && (flags & SW))
 				instr = cpu_to_le32(instr);
 			nb = (instr >> 11) & 0x1f;
@@ -309,31 +332,31 @@ static int emulate_multiple(struct pt_re
 			       ((nb0 + 3) / 4) * sizeof(unsigned long));
 
 		for (i = 0; i < nb; ++i, ++p)
-			if (__get_user_inatomic(REG_BYTE(rptr, i ^ bswiz),
-						SWIZ_PTR(p)))
+			if (__get_user_or_set_dar(regs, REG_BYTE(rptr, i ^ bswiz),
+						  SWIZ_PTR(p)))
 				return -EFAULT;
 		if (nb0 > 0) {
 			rptr = &regs->gpr[0];
 			addr += nb;
 			for (i = 0; i < nb0; ++i, ++p)
-				if (__get_user_inatomic(REG_BYTE(rptr,
-								 i ^ bswiz),
-							SWIZ_PTR(p)))
+				if (__get_user_or_set_dar(regs,
+							  REG_BYTE(rptr, i ^ bswiz),
+							  SWIZ_PTR(p)))
 					return -EFAULT;
 		}
 
 	} else {
 		for (i = 0; i < nb; ++i, ++p)
-			if (__put_user_inatomic(REG_BYTE(rptr, i ^ bswiz),
-						SWIZ_PTR(p)))
+			if (__put_user_or_set_dar(regs, REG_BYTE(rptr, i ^ bswiz),
+						  SWIZ_PTR(p)))
 				return -EFAULT;
 		if (nb0 > 0) {
 			rptr = &regs->gpr[0];
 			addr += nb;
 			for (i = 0; i < nb0; ++i, ++p)
-				if (__put_user_inatomic(REG_BYTE(rptr,
-								 i ^ bswiz),
-							SWIZ_PTR(p)))
+				if (__put_user_or_set_dar(regs,
+							  REG_BYTE(rptr, i ^ bswiz),
+							  SWIZ_PTR(p)))
 					return -EFAULT;
 		}
 	}
@@ -345,29 +368,32 @@ static int emulate_multiple(struct pt_re
  * Only POWER6 has these instructions, and it does true little-endian,
  * so we don't need the address swizzling.
  */
-static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
-			   unsigned int flags)
+static int emulate_fp_pair(struct pt_regs *regs, unsigned char __user *addr,
+			   unsigned int reg, unsigned int flags)
 {
 	char *ptr0 = (char *) &current->thread.TS_FPR(reg);
 	char *ptr1 = (char *) &current->thread.TS_FPR(reg+1);
-	int i, ret, sw = 0;
+	int i, sw = 0;
 
 	if (reg & 1)
 		return 0;	/* invalid form: FRS/FRT must be even */
 	if (flags & SW)
 		sw = 7;
-	ret = 0;
+
 	for (i = 0; i < 8; ++i) {
 		if (!(flags & ST)) {
-			ret |= __get_user(ptr0[i^sw], addr + i);
-			ret |= __get_user(ptr1[i^sw], addr + i + 8);
+			if (__get_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__get_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		} else {
-			ret |= __put_user(ptr0[i^sw], addr + i);
-			ret |= __put_user(ptr1[i^sw], addr + i + 8);
+			if (__put_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__put_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		}
 	}
-	if (ret)
-		return -EFAULT;
+
 	return 1;	/* exception handled and fixed up */
 }
 
@@ -377,24 +403,27 @@ static int emulate_lq_stq(struct pt_regs
 {
 	char *ptr0 = (char *)&regs->gpr[reg];
 	char *ptr1 = (char *)&regs->gpr[reg+1];
-	int i, ret, sw = 0;
+	int i, sw = 0;
 
 	if (reg & 1)
 		return 0;	/* invalid form: GPR must be even */
 	if (flags & SW)
 		sw = 7;
-	ret = 0;
+
 	for (i = 0; i < 8; ++i) {
 		if (!(flags & ST)) {
-			ret |= __get_user(ptr0[i^sw], addr + i);
-			ret |= __get_user(ptr1[i^sw], addr + i + 8);
+			if (__get_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__get_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		} else {
-			ret |= __put_user(ptr0[i^sw], addr + i);
-			ret |= __put_user(ptr1[i^sw], addr + i + 8);
+			if (__put_user_or_set_dar(regs, ptr0[i^sw], addr + i))
+				return -EFAULT;
+			if (__put_user_or_set_dar(regs, ptr1[i^sw], addr + i + 8))
+				return -EFAULT;
 		}
 	}
-	if (ret)
-		return -EFAULT;
+
 	return 1;	/* exception handled and fixed up */
 }
 #endif /* CONFIG_PPC64 */
@@ -687,9 +716,14 @@ static int emulate_vsx(unsigned char __u
 	for (j = 0; j < length; j += elsize) {
 		for (i = 0; i < elsize; ++i) {
 			if (flags & ST)
-				ret |= __put_user(ptr[i^sw], addr + i);
+				ret = __put_user_or_set_dar(regs, ptr[i^sw],
+							    addr + i);
 			else
-				ret |= __get_user(ptr[i^sw], addr + i);
+				ret = __get_user_or_set_dar(regs, ptr[i^sw],
+							    addr + i);
+
+			if (ret)
+				return ret;
 		}
 		ptr  += elsize;
 #ifdef __LITTLE_ENDIAN__
@@ -739,7 +773,7 @@ int fix_alignment(struct pt_regs *regs)
 	unsigned int dsisr;
 	unsigned char __user *addr;
 	unsigned long p, swiz;
-	int ret, i;
+	int i;
 	union data {
 		u64 ll;
 		double dd;
@@ -807,14 +841,25 @@ int fix_alignment(struct pt_regs *regs)
 	nb = aligninfo[instr].len;
 	flags = aligninfo[instr].flags;
 
-	/* ldbrx/stdbrx overlap lfs/stfs in the DSISR unfortunately */
-	if (IS_XFORM(instruction) && ((instruction >> 1) & 0x3ff) == 532) {
-		nb = 8;
-		flags = LD+SW;
-	} else if (IS_XFORM(instruction) &&
-		   ((instruction >> 1) & 0x3ff) == 660) {
-		nb = 8;
-		flags = ST+SW;
+	/*
+	 * Handle some cases which give overlaps in the DSISR values.
+	 */
+	if (IS_XFORM(instruction)) {
+		switch (get_xop(instruction)) {
+		case 532:	/* ldbrx */
+			nb = 8;
+			flags = LD+SW;
+			break;
+		case 660:	/* stdbrx */
+			nb = 8;
+			flags = ST+SW;
+			break;
+		case 20:	/* lwarx */
+		case 84:	/* ldarx */
+		case 116:	/* lharx */
+		case 276:	/* lqarx */
+			return 0;	/* not emulated ever */
+		}
 	}
 
 	/* Byteswap little endian loads and stores */
@@ -925,7 +970,7 @@ int fix_alignment(struct pt_regs *regs)
 		if (flags & F) {
 			/* Special case for 16-byte FP loads and stores */
 			PPC_WARN_ALIGNMENT(fp_pair, regs);
-			return emulate_fp_pair(addr, reg, flags);
+			return emulate_fp_pair(regs, addr, reg, flags);
 		} else {
 #ifdef CONFIG_PPC64
 			/* Special case for 16-byte loads and stores */
@@ -955,15 +1000,12 @@ int fix_alignment(struct pt_regs *regs)
 		}
 
 		data.ll = 0;
-		ret = 0;
 		p = (unsigned long)addr;
 
 		for (i = 0; i < nb; i++)
-			ret |= __get_user_inatomic(data.v[start + i],
-						   SWIZ_PTR(p++));
-
-		if (unlikely(ret))
-			return -EFAULT;
+			if (__get_user_or_set_dar(regs, data.v[start + i],
+						  SWIZ_PTR(p++)))
+				return -EFAULT;
 
 	} else if (flags & F) {
 		data.ll = current->thread.TS_FPR(reg);
@@ -1035,15 +1077,13 @@ int fix_alignment(struct pt_regs *regs)
 			break;
 		}
 
-		ret = 0;
 		p = (unsigned long)addr;
 
 		for (i = 0; i < nb; i++)
-			ret |= __put_user_inatomic(data.v[start + i],
-						   SWIZ_PTR(p++));
+			if (__put_user_or_set_dar(regs, data.v[start + i],
+						  SWIZ_PTR(p++)))
+				return -EFAULT;
 
-		if (unlikely(ret))
-			return -EFAULT;
 	} else if (flags & F)
 		current->thread.TS_FPR(reg) = data.ll;
 	else
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/asm-offsets.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/asm-offsets.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/asm-offsets.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/asm-offsets.c	2017-09-27 08:40:05.000000000 -0400
@@ -569,6 +569,7 @@ int main(void)
 	DEFINE(VCPU_VRS_TM, offsetof(struct kvm_vcpu, arch.vr_tm.vr));
 	DEFINE(VCPU_VRSAVE_TM, offsetof(struct kvm_vcpu, arch.vrsave_tm));
 	DEFINE(VCPU_CR_TM, offsetof(struct kvm_vcpu, arch.cr_tm));
+	DEFINE(VCPU_XER_TM, offsetof(struct kvm_vcpu, arch.xer_tm));
 	DEFINE(VCPU_LR_TM, offsetof(struct kvm_vcpu, arch.lr_tm));
 	DEFINE(VCPU_CTR_TM, offsetof(struct kvm_vcpu, arch.ctr_tm));
 	DEFINE(VCPU_AMR_TM, offsetof(struct kvm_vcpu, arch.amr_tm));
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/cpu_setup_power.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/cpu_setup_power.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/cpu_setup_power.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/cpu_setup_power.S	2017-09-27 08:40:05.000000000 -0400
@@ -100,6 +100,8 @@ _GLOBAL(__setup_cpu_power9)
 	mfspr	r3,SPRN_LPCR
 	LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE)
 	or	r3, r3, r4
+	LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR)
+	andc	r3, r3, r4
 	bl	__init_LPCR
 	bl	__init_HFSCR
 	bl	__init_tlb_power9
@@ -120,6 +122,8 @@ _GLOBAL(__restore_cpu_power9)
 	mfspr   r3,SPRN_LPCR
 	LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE)
 	or	r3, r3, r4
+	LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR)
+	andc	r3, r3, r4
 	bl	__init_LPCR
 	bl	__init_HFSCR
 	bl	__init_tlb_power9
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/eeh.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/eeh.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/eeh.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/eeh.c	2017-09-27 08:40:05.000000000 -0400
@@ -298,9 +298,17 @@ void eeh_slot_error_detail(struct eeh_pe
 	 *
 	 * For pHyp, we have to enable IO for log retrieval. Otherwise,
 	 * 0xFF's is always returned from PCI config space.
+	 *
+	 * When the @severity is EEH_LOG_PERM, the PE is going to be
+	 * removed. Prior to that, the drivers for devices included in
+	 * the PE will be closed. The drivers rely on working IO path
+	 * to bring the devices to quiet state. Otherwise, PCI traffic
+	 * from those devices after they are removed is like to cause
+	 * another unexpected EEH error.
 	 */
 	if (!(pe->type & EEH_PE_PHB)) {
-		if (eeh_has_flag(EEH_ENABLE_IO_FOR_LOG))
+		if (eeh_has_flag(EEH_ENABLE_IO_FOR_LOG) ||
+		    severity == EEH_LOG_PERM)
 			eeh_pci_enable(pe, EEH_OPT_THAW_MMIO);
 
 		/*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/eeh_driver.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/eeh_driver.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/eeh_driver.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/eeh_driver.c	2017-09-27 08:40:05.000000000 -0400
@@ -545,7 +545,7 @@ static void *eeh_pe_detach_dev(void *dat
 static void *__eeh_clear_pe_frozen_state(void *data, void *flag)
 {
 	struct eeh_pe *pe = (struct eeh_pe *)data;
-	bool *clear_sw_state = flag;
+	bool clear_sw_state = *(bool *)flag;
 	int i, rc = 1;
 
 	for (i = 0; rc && i < 3; i++)
@@ -724,7 +724,7 @@ static int eeh_reset_device(struct eeh_p
  */
 #define MAX_WAIT_FOR_RECOVERY 300
 
-static void eeh_handle_normal_event(struct eeh_pe *pe)
+static bool eeh_handle_normal_event(struct eeh_pe *pe)
 {
 	struct pci_bus *frozen_bus;
 	struct eeh_dev *edev, *tmp;
@@ -736,7 +736,7 @@ static void eeh_handle_normal_event(stru
 	if (!frozen_bus) {
 		pr_err("%s: Cannot find PCI bus for PHB#%d-PE#%x\n",
 			__func__, pe->phb->global_number, pe->addr);
-		return;
+		return false;
 	}
 
 	eeh_pe_update_time_stamp(pe);
@@ -870,7 +870,7 @@ static void eeh_handle_normal_event(stru
 	pr_info("EEH: Notify device driver to resume\n");
 	eeh_pe_dev_traverse(pe, eeh_report_resume, NULL);
 
-	return;
+	return false;
 
 excess_failures:
 	/*
@@ -915,8 +915,12 @@ perm_error:
 			pci_lock_rescan_remove();
 			pci_hp_remove_devices(frozen_bus);
 			pci_unlock_rescan_remove();
+
+			/* The passed PE should no longer be used */
+			return true;
 		}
 	}
+	return false;
 }
 
 static void eeh_handle_special_event(void)
@@ -982,7 +986,14 @@ static void eeh_handle_special_event(voi
 		 */
 		if (rc == EEH_NEXT_ERR_FROZEN_PE ||
 		    rc == EEH_NEXT_ERR_FENCED_PHB) {
-			eeh_handle_normal_event(pe);
+			/*
+			 * eeh_handle_normal_event() can make the PE stale if it
+			 * determines that the PE cannot possibly be recovered.
+			 * Don't modify the PE state if that's the case.
+			 */
+			if (eeh_handle_normal_event(pe))
+				continue;
+
 			eeh_pe_state_clear(pe, EEH_PE_RECOVERING);
 		} else {
 			pci_lock_rescan_remove();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/entry_64.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/entry_64.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/entry_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/entry_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -689,7 +689,7 @@ resume_kernel:
 
 	addi	r8,r1,INT_FRAME_SIZE	/* Get the kprobed function entry */
 
-	lwz	r3,GPR1(r1)
+	ld	r3,GPR1(r1)
 	subi	r3,r3,INT_FRAME_SIZE	/* dst: Allocate a trampoline exception frame */
 	mr	r4,r1			/* src:  current exception frame */
 	mr	r1,r3			/* Reroute the trampoline frame to r1 */
@@ -703,8 +703,8 @@ resume_kernel:
 	addi	r6,r6,8
 	bdnz	2b
 
-	/* Do real store operation to complete stwu */
-	lwz	r5,GPR1(r1)
+	/* Do real store operation to complete stdu */
+	ld	r5,GPR1(r1)
 	std	r8,0(r5)
 
 	/* Clear _TIF_EMULATE_STACK_STORE flag */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/exceptions-64e.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/exceptions-64e.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/exceptions-64e.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/exceptions-64e.S	2017-09-27 08:40:05.000000000 -0400
@@ -735,8 +735,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	andis.	r15,r14,(DBSR_IC|DBSR_BT)@h
 	beq+	1f
 
+#ifdef CONFIG_RELOCATABLE
+	ld	r15,PACATOC(r13)
+	ld	r14,interrupt_base_book3e@got(r15)
+	ld	r15,__end_interrupts@got(r15)
+#else
 	LOAD_REG_IMMEDIATE(r14,interrupt_base_book3e)
 	LOAD_REG_IMMEDIATE(r15,__end_interrupts)
+#endif
 	cmpld	cr0,r10,r14
 	cmpld	cr1,r10,r15
 	blt+	cr0,1f
@@ -799,8 +805,14 @@ kernel_dbg_exc:
 	andis.	r15,r14,(DBSR_IC|DBSR_BT)@h
 	beq+	1f
 
+#ifdef CONFIG_RELOCATABLE
+	ld	r15,PACATOC(r13)
+	ld	r14,interrupt_base_book3e@got(r15)
+	ld	r15,__end_interrupts@got(r15)
+#else
 	LOAD_REG_IMMEDIATE(r14,interrupt_base_book3e)
 	LOAD_REG_IMMEDIATE(r15,__end_interrupts)
+#endif
 	cmpld	cr0,r10,r14
 	cmpld	cr1,r10,r15
 	blt+	cr0,1f
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/exceptions-64s.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/exceptions-64s.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/exceptions-64s.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/exceptions-64s.S	2017-09-27 08:40:05.000000000 -0400
@@ -1411,10 +1411,8 @@ USE_TEXT_SECTION()
 	.align	7
 do_hash_page:
 #ifdef CONFIG_PPC_STD_MMU_64
-	andis.	r0,r4,0xa410		/* weird error? */
+	andis.	r0,r4,0xa450		/* weird error? */
 	bne-	handle_page_fault	/* if not, try to insert a HPTE */
-	andis.  r0,r4,DSISR_DABRMATCH@h
-	bne-    handle_dabr_fault
 	CURRENT_THREAD_INFO(r11, r1)
 	lwz	r0,TI_PREEMPT(r11)	/* If we're in an "NMI" */
 	andis.	r0,r0,NMI_MASK@h	/* (i.e. an irq when soft-disabled) */
@@ -1438,11 +1436,16 @@ do_hash_page:
 
 	/* Error */
 	blt-	13f
+
+	/* Reload DSISR into r4 for the DABR check below */
+	ld      r4,_DSISR(r1)
 #endif /* CONFIG_PPC_STD_MMU_64 */
 
 /* Here we have a page fault that hash_page can't handle. */
 handle_page_fault:
-11:	ld	r4,_DAR(r1)
+11:	andis.  r0,r4,DSISR_DABRMATCH@h
+	bne-    handle_dabr_fault
+	ld	r4,_DAR(r1)
 	ld	r5,_DSISR(r1)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	do_page_fault
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/head_64.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/head_64.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/head_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/head_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -214,9 +214,9 @@ booting_thread_hwid:
  */
 _GLOBAL(book3e_start_thread)
 	LOAD_REG_IMMEDIATE(r5, MSR_KERNEL)
-	cmpi	0, r3, 0
+	cmpwi	r3, 0
 	beq	10f
-	cmpi	0, r3, 1
+	cmpwi	r3, 1
 	beq	11f
 	/* If the thread id is invalid, just exit. */
 	b	13f
@@ -241,9 +241,9 @@ _GLOBAL(book3e_start_thread)
  * r3 = the thread physical id
  */
 _GLOBAL(book3e_stop_thread)
-	cmpi	0, r3, 0
+	cmpwi	r3, 0
 	beq	10f
-	cmpi	0, r3, 1
+	cmpwi	r3, 1
 	beq	10f
 	/* If the thread id is invalid, just exit. */
 	b	13f
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/hw_breakpoint.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/hw_breakpoint.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/hw_breakpoint.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/hw_breakpoint.c	2017-09-27 08:40:05.000000000 -0400
@@ -228,8 +228,10 @@ int hw_breakpoint_handler(struct die_arg
 	rcu_read_lock();
 
 	bp = __this_cpu_read(bp_per_reg);
-	if (!bp)
+	if (!bp) {
+		rc = NOTIFY_DONE;
 		goto out;
+	}
 	info = counter_arch_bp(bp);
 
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/ibmebus.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/ibmebus.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/ibmebus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/ibmebus.c	2017-09-27 08:40:05.000000000 -0400
@@ -180,6 +180,7 @@ static int ibmebus_create_device(struct
 static int ibmebus_create_devices(const struct of_device_id *matches)
 {
 	struct device_node *root, *child;
+	struct device *dev;
 	int ret = 0;
 
 	root = of_find_node_by_path("/");
@@ -188,9 +189,12 @@ static int ibmebus_create_devices(const
 		if (!of_match_node(matches, child))
 			continue;
 
-		if (bus_find_device(&ibmebus_bus_type, NULL, child,
-				    ibmebus_match_node))
+		dev = bus_find_device(&ibmebus_bus_type, NULL, child,
+				      ibmebus_match_node);
+		if (dev) {
+			put_device(dev);
 			continue;
+		}
 
 		ret = ibmebus_create_device(child);
 		if (ret) {
@@ -262,6 +266,7 @@ static ssize_t ibmebus_store_probe(struc
 				   const char *buf, size_t count)
 {
 	struct device_node *dn = NULL;
+	struct device *dev;
 	char *path;
 	ssize_t rc = 0;
 
@@ -269,8 +274,10 @@ static ssize_t ibmebus_store_probe(struc
 	if (!path)
 		return -ENOMEM;
 
-	if (bus_find_device(&ibmebus_bus_type, NULL, path,
-			    ibmebus_match_path)) {
+	dev = bus_find_device(&ibmebus_bus_type, NULL, path,
+			      ibmebus_match_path);
+	if (dev) {
+		put_device(dev);
 		printk(KERN_WARNING "%s: %s has already been probed\n",
 		       __func__, path);
 		rc = -EEXIST;
@@ -307,6 +314,7 @@ static ssize_t ibmebus_store_remove(stru
 	if ((dev = bus_find_device(&ibmebus_bus_type, NULL, path,
 				   ibmebus_match_path))) {
 		of_device_unregister(to_platform_device(dev));
+		put_device(dev);
 
 		kfree(path);
 		return count;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/idle_book3s.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/idle_book3s.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/idle_book3s.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/idle_book3s.S	2017-09-27 08:40:05.000000000 -0400
@@ -439,9 +439,23 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
 _GLOBAL(pnv_wakeup_tb_loss)
 	ld	r1,PACAR1(r13)
 	/*
-	 * Before entering any idle state, the NVGPRs are saved in the stack
-	 * and they are restored before switching to the process context. Hence
-	 * until they are restored, they are free to be used.
+	 * Before entering any idle state, the NVGPRs are saved in the stack.
+	 * If there was a state loss, or PACA_NAPSTATELOST was set, then the
+	 * NVGPRs are restored. If we are here, it is likely that state is lost,
+	 * but not guaranteed -- neither ISA207 nor ISA300 tests to reach
+	 * here are the same as the test to restore NVGPRS:
+	 * PACA_THREAD_IDLE_STATE test for ISA207, PSSCR test for ISA300,
+	 * and SRR1 test for restoring NVGPRs.
+	 *
+	 * We are about to clobber NVGPRs now, so set NAPSTATELOST to
+	 * guarantee they will always be restored. This might be tightened
+	 * with careful reading of specs (particularly for ISA300) but this
+	 * is already a slow wakeup path and it's simpler to be safe.
+	 */
+	li	r0,1
+	stb	r0,PACA_NAPSTATELOST(r13)
+
+	/*
 	 *
 	 * Save SRR1 and LR in NVGPRs as they might be clobbered in
 	 * opal_call() (called in CHECK_HMI_INTERRUPT). SRR1 is required
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/irq.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/irq.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/irq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/irq.c	2017-09-27 08:40:05.000000000 -0400
@@ -146,6 +146,19 @@ notrace unsigned int __check_irq_replay(
 
 	/* Clear bit 0 which we wouldn't clear otherwise */
 	local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+	if (happened & PACA_IRQ_HARD_DIS) {
+		/*
+		 * We may have missed a decrementer interrupt if hard disabled.
+		 * Check the decrementer register in case we had a rollover
+		 * while hard disabled.
+		 */
+		if (!(happened & PACA_IRQ_DEC)) {
+			if (decrementer_check_overflow()) {
+				local_paca->irq_happened |= PACA_IRQ_DEC;
+				happened |= PACA_IRQ_DEC;
+			}
+		}
+	}
 
 	/*
 	 * Force the delivery of pending soft-disabled interrupts on PS3.
@@ -171,7 +184,7 @@ notrace unsigned int __check_irq_replay(
 	 * in case we also had a rollover while hard disabled
 	 */
 	local_paca->irq_happened &= ~PACA_IRQ_DEC;
-	if ((happened & PACA_IRQ_DEC) || decrementer_check_overflow())
+	if (happened & PACA_IRQ_DEC)
 		return 0x900;
 
 	/* Finally check if an external interrupt happened */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/kprobes.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/kprobes.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/kprobes.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/kprobes.c	2017-09-27 08:40:05.000000000 -0400
@@ -511,6 +511,15 @@ int __kprobes setjmp_pre_handler(struct
 	regs->gpr[2] = (unsigned long)(((func_descr_t *)jp->entry)->toc);
 #endif
 
+	/*
+	 * jprobes use jprobe_return() which skips the normal return
+	 * path of the function, and this messes up the accounting of the
+	 * function graph tracer.
+	 *
+	 * Pause function graph tracing while performing the jprobe function.
+	 */
+	pause_graph_tracing();
+
 	return 1;
 }
 
@@ -533,6 +542,8 @@ int __kprobes longjmp_break_handler(stru
 	 * saved regs...
 	 */
 	memcpy(regs, &kcb->jprobe_saved_regs, sizeof(struct pt_regs));
+	/* It's OK to start function graph tracing again */
+	unpause_graph_tracing();
 	preempt_enable_no_resched();
 	return 1;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/Makefile linux-libre-4.9.52-gnu/arch/powerpc/kernel/Makefile
--- linux-libre-4.9-gnu/arch/powerpc/kernel/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -15,7 +15,7 @@ CFLAGS_btext.o		+= -fPIC
 endif
 
 CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
-CFLAGS_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/mce.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/mce.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/mce.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/mce.c	2017-09-27 08:40:05.000000000 -0400
@@ -205,6 +205,8 @@ static void machine_check_process_queued
 {
 	int index;
 
+	add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
+
 	/*
 	 * For now just print it to console.
 	 * TODO: log this error event to FSP or nvram.
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/misc_32.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/misc_32.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/misc_32.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/misc_32.S	2017-09-27 08:40:05.000000000 -0400
@@ -296,7 +296,7 @@ _GLOBAL(flush_instruction_cache)
 	lis	r3, KERNELBASE@h
 	iccci	0,r3
 #endif
-#elif CONFIG_FSL_BOOKE
+#elif defined(CONFIG_FSL_BOOKE)
 BEGIN_FTR_SECTION
 	mfspr   r3,SPRN_L1CSR0
 	ori     r3,r3,L1CSR0_CFI|L1CSR0_CLFC
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/misc_64.S linux-libre-4.9.52-gnu/arch/powerpc/kernel/misc_64.S
--- linux-libre-4.9-gnu/arch/powerpc/kernel/misc_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/misc_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -67,7 +67,7 @@ PPC64_CACHES:
  *   flush all bytes from start through stop-1 inclusive
  */
 
-_GLOBAL(flush_icache_range)
+_GLOBAL_TOC(flush_icache_range)
 BEGIN_FTR_SECTION
 	PURGE_PREFETCHED_INS
 	blr
@@ -120,7 +120,7 @@ EXPORT_SYMBOL(flush_icache_range)
  *
  *    flush all bytes from start to stop-1 inclusive
  */
-_GLOBAL(flush_dcache_range)
+_GLOBAL_TOC(flush_dcache_range)
 
 /*
  * Flush the data cache to memory 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/nvram_64.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/nvram_64.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/nvram_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/nvram_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -561,6 +561,7 @@ static ssize_t nvram_pstore_read(u64 *id
 static struct pstore_info nvram_pstore_info = {
 	.owner = THIS_MODULE,
 	.name = "nvram",
+	.flags = PSTORE_FLAGS_DMESG,
 	.open = nvram_pstore_open,
 	.read = nvram_pstore_read,
 	.write = nvram_pstore_write,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/process.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/process.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/process.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/process.c	2017-09-27 08:40:05.000000000 -0400
@@ -359,7 +359,8 @@ void enable_kernel_vsx(void)
 
 	cpumsr = msr_check_and_set(MSR_FP|MSR_VEC|MSR_VSX);
 
-	if (current->thread.regs && (current->thread.regs->msr & MSR_VSX)) {
+	if (current->thread.regs &&
+	    (current->thread.regs->msr & (MSR_VSX|MSR_VEC|MSR_FP))) {
 		check_if_tm_restore_required(current);
 		/*
 		 * If a thread has already been reclaimed then the
@@ -383,7 +384,7 @@ void flush_vsx_to_thread(struct task_str
 {
 	if (tsk->thread.regs) {
 		preempt_disable();
-		if (tsk->thread.regs->msr & MSR_VSX) {
+		if (tsk->thread.regs->msr & (MSR_VSX|MSR_VEC|MSR_FP)) {
 			BUG_ON(tsk != current);
 			giveup_vsx(tsk);
 		}
@@ -839,6 +840,25 @@ static void tm_reclaim_thread(struct thr
 	if (!MSR_TM_SUSPENDED(mfmsr()))
 		return;
 
+	/*
+	 * If we are in a transaction and FP is off then we can't have
+	 * used FP inside that transaction. Hence the checkpointed
+	 * state is the same as the live state. We need to copy the
+	 * live state to the checkpointed state so that when the
+	 * transaction is restored, the checkpointed state is correct
+	 * and the aborted transaction sees the correct state. We use
+	 * ckpt_regs.msr here as that's what tm_reclaim will use to
+	 * determine if it's going to write the checkpointed state or
+	 * not. So either this will write the checkpointed registers,
+	 * or reclaim will. Similarly for VMX.
+	 */
+	if ((thr->ckpt_regs.msr & MSR_FP) == 0)
+		memcpy(&thr->ckfp_state, &thr->fp_state,
+		       sizeof(struct thread_fp_state));
+	if ((thr->ckpt_regs.msr & MSR_VEC) == 0)
+		memcpy(&thr->ckvr_state, &thr->vr_state,
+		       sizeof(struct thread_vr_state));
+
 	giveup_all(container_of(thr, struct task_struct, thread));
 
 	tm_reclaim(thr, thr->ckpt_regs.msr, cause);
@@ -1640,6 +1660,7 @@ void start_thread(struct pt_regs *regs,
 #ifdef CONFIG_VSX
 	current->thread.used_vsr = 0;
 #endif
+	current->thread.load_fp = 0;
 	memset(&current->thread.fp_state, 0, sizeof(current->thread.fp_state));
 	current->thread.fp_save_area = NULL;
 #ifdef CONFIG_ALTIVEC
@@ -1648,6 +1669,7 @@ void start_thread(struct pt_regs *regs,
 	current->thread.vr_save_area = NULL;
 	current->thread.vrsave = 0;
 	current->thread.used_vr = 0;
+	current->thread.load_vec = 0;
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_SPE
 	memset(current->thread.evr, 0, sizeof(current->thread.evr));
@@ -1659,6 +1681,7 @@ void start_thread(struct pt_regs *regs,
 	current->thread.tm_tfhar = 0;
 	current->thread.tm_texasr = 0;
 	current->thread.tm_tfiar = 0;
+	current->thread.load_tm = 0;
 #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
 }
 EXPORT_SYMBOL(start_thread);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/prom_init.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/prom_init.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/prom_init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/prom_init.c	2017-09-27 08:40:05.000000000 -0400
@@ -2747,6 +2747,9 @@ static void __init prom_find_boot_cpu(vo
 
 	cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
 
+	if (!PHANDLE_VALID(cpu_pkg))
+		return;
+
 	prom_getprop(cpu_pkg, "reg", &rval, sizeof(rval));
 	prom.cpu = be32_to_cpu(rval);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/ptrace32.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/ptrace32.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/ptrace32.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/ptrace32.c	2017-09-27 08:40:05.000000000 -0400
@@ -73,7 +73,7 @@ long compat_arch_ptrace(struct task_stru
 		if (get_user(addrOthers, (u32 __user * __user *)addr) != 0)
 			break;
 
-		copied = access_process_vm(child, (u64)addrOthers, &tmp,
+		copied = ptrace_access_vm(child, (u64)addrOthers, &tmp,
 				sizeof(tmp), FOLL_FORCE);
 		if (copied != sizeof(tmp))
 			break;
@@ -178,7 +178,7 @@ long compat_arch_ptrace(struct task_stru
 		if (get_user(addrOthers, (u32 __user * __user *)addr) != 0)
 			break;
 		ret = 0;
-		if (access_process_vm(child, (u64)addrOthers, &tmp,
+		if (ptrace_access_vm(child, (u64)addrOthers, &tmp,
 					sizeof(tmp),
 					FOLL_FORCE | FOLL_WRITE) == sizeof(tmp))
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -127,12 +127,19 @@ static void flush_tmregs_to_thread(struc
 	 * If task is not current, it will have been flushed already to
 	 * it's thread_struct during __switch_to().
 	 *
-	 * A reclaim flushes ALL the state.
+	 * A reclaim flushes ALL the state or if not in TM save TM SPRs
+	 * in the appropriate thread structures from live.
 	 */
 
-	if (tsk == current && MSR_TM_SUSPENDED(mfmsr()))
-		tm_reclaim_current(TM_CAUSE_SIGNAL);
+	if (tsk != current)
+		return;
 
+	if (MSR_TM_SUSPENDED(mfmsr())) {
+		tm_reclaim_current(TM_CAUSE_SIGNAL);
+	} else {
+		tm_enable();
+		tm_save_sprs(&(tsk->thread));
+	}
 }
 #else
 static inline void flush_tmregs_to_thread(struct task_struct *tsk) { }
@@ -463,6 +470,10 @@ static int fpr_set(struct task_struct *t
 
 	flush_fp_to_thread(target);
 
+	for (i = 0; i < 32 ; i++)
+		buf[i] = target->thread.TS_FPR(i);
+	buf[32] = target->thread.fp_state.fpscr;
+
 	/* copy to local buffer then write that out */
 	i = user_regset_copyin(&pos, &count, &kbuf, &ubuf, buf, 0, -1);
 	if (i)
@@ -672,6 +683,9 @@ static int vsr_set(struct task_struct *t
 	flush_altivec_to_thread(target);
 	flush_vsx_to_thread(target);
 
+	for (i = 0; i < 32 ; i++)
+		buf[i] = target->thread.fp_state.fpr[i][TS_VSRLOWOFFSET];
+
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 buf, 0, 32 * sizeof(double));
 	if (!ret)
@@ -1019,6 +1033,10 @@ static int tm_cfpr_set(struct task_struc
 	flush_fp_to_thread(target);
 	flush_altivec_to_thread(target);
 
+	for (i = 0; i < 32; i++)
+		buf[i] = target->thread.TS_CKFPR(i);
+	buf[32] = target->thread.ckfp_state.fpscr;
+
 	/* copy to local buffer then write that out */
 	i = user_regset_copyin(&pos, &count, &kbuf, &ubuf, buf, 0, -1);
 	if (i)
@@ -1283,6 +1301,9 @@ static int tm_cvsx_set(struct task_struc
 	flush_altivec_to_thread(target);
 	flush_vsx_to_thread(target);
 
+	for (i = 0; i < 32 ; i++)
+		buf[i] = target->thread.ckfp_state.fpr[i][TS_VSRLOWOFFSET];
+
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 buf, 0, 32 * sizeof(double));
 	if (!ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/setup_64.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/setup_64.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/setup_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/setup_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -245,6 +245,15 @@ static void cpu_ready_for_interrupts(voi
 		mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3);
 	}
 
+	/*
+	 * Fixup HFSCR:TM based on CPU features. The bit is set by our
+	 * early asm init because at that point we haven't updated our
+	 * CPU features from firmware and device-tree. Here we have,
+	 * so let's do it.
+	 */
+	if (cpu_has_feature(CPU_FTR_HVMODE) && !cpu_has_feature(CPU_FTR_TM_COMP))
+		mtspr(SPRN_HFSCR, mfspr(SPRN_HFSCR) & ~HFSCR_TM);
+
 	/* Set IR and DR in PACA MSR */
 	get_paca()->kernel_msr = MSR_KERNEL;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/setup-common.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/setup-common.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/setup-common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/setup-common.c	2017-09-27 08:40:05.000000000 -0400
@@ -915,7 +915,7 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.context.pte_frag = NULL;
 #endif
 #ifdef CONFIG_SPAPR_TCE_IOMMU
-	mm_iommu_init(&init_mm.context);
+	mm_iommu_init(&init_mm);
 #endif
 	irqstack_early_init();
 	exc_lvl_early_init();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kernel/traps.c linux-libre-4.9.52-gnu/arch/powerpc/kernel/traps.c
--- linux-libre-4.9-gnu/arch/powerpc/kernel/traps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kernel/traps.c	2017-09-27 08:40:05.000000000 -0400
@@ -302,8 +302,6 @@ long machine_check_early(struct pt_regs
 
 	__this_cpu_inc(irq_stat.mce_exceptions);
 
-	add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
-
 	if (cur_cpu_spec && cur_cpu_spec->machine_check_early)
 		handled = cur_cpu_spec->machine_check_early(regs);
 	return handled;
@@ -737,6 +735,8 @@ void machine_check_exception(struct pt_r
 
 	__this_cpu_inc(irq_stat.mce_exceptions);
 
+	add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
+
 	/* See if any machine dependent calls. In theory, we would want
 	 * to call the CPU first, and call the ppc_md. one if the CPU
 	 * one returns a positive number. However there is existing code
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kvm/book3s_hv.c linux-libre-4.9.52-gnu/arch/powerpc/kvm/book3s_hv.c
--- linux-libre-4.9-gnu/arch/powerpc/kvm/book3s_hv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kvm/book3s_hv.c	2017-09-27 08:40:05.000000000 -0400
@@ -1288,6 +1288,9 @@ static int kvmppc_get_one_reg_hv(struct
 	case KVM_REG_PPC_TM_CR:
 		*val = get_reg_val(id, vcpu->arch.cr_tm);
 		break;
+	case KVM_REG_PPC_TM_XER:
+		*val = get_reg_val(id, vcpu->arch.xer_tm);
+		break;
 	case KVM_REG_PPC_TM_LR:
 		*val = get_reg_val(id, vcpu->arch.lr_tm);
 		break;
@@ -1498,6 +1501,9 @@ static int kvmppc_set_one_reg_hv(struct
 	case KVM_REG_PPC_TM_CR:
 		vcpu->arch.cr_tm = set_reg_val(id, *val);
 		break;
+	case KVM_REG_PPC_TM_XER:
+		vcpu->arch.xer_tm = set_reg_val(id, *val);
+		break;
 	case KVM_REG_PPC_TM_LR:
 		vcpu->arch.lr_tm = set_reg_val(id, *val);
 		break;
@@ -2801,12 +2807,38 @@ static int kvmppc_vcpu_run_hv(struct kvm
 {
 	int r;
 	int srcu_idx;
+	unsigned long ebb_regs[3] = {};	/* shut up GCC */
+	unsigned long user_tar = 0;
+	unsigned int user_vrsave;
 
 	if (!vcpu->arch.sane) {
 		run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		return -EINVAL;
 	}
 
+	/*
+	 * Don't allow entry with a suspended transaction, because
+	 * the guest entry/exit code will lose it.
+	 * If the guest has TM enabled, save away their TM-related SPRs
+	 * (they will get restored by the TM unavailable interrupt).
+	 */
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+	if (cpu_has_feature(CPU_FTR_TM) && current->thread.regs &&
+	    (current->thread.regs->msr & MSR_TM)) {
+		if (MSR_TM_ACTIVE(current->thread.regs->msr)) {
+			run->exit_reason = KVM_EXIT_FAIL_ENTRY;
+			run->fail_entry.hardware_entry_failure_reason = 0;
+			return -EINVAL;
+		}
+		/* Enable TM so we can read the TM SPRs */
+		mtmsr(mfmsr() | MSR_TM);
+		current->thread.tm_tfhar = mfspr(SPRN_TFHAR);
+		current->thread.tm_tfiar = mfspr(SPRN_TFIAR);
+		current->thread.tm_texasr = mfspr(SPRN_TEXASR);
+		current->thread.regs->msr &= ~MSR_TM;
+	}
+#endif
+
 	kvmppc_core_prepare_to_enter(vcpu);
 
 	/* No need to go into the guest when all we'll do is come back out */
@@ -2828,6 +2860,15 @@ static int kvmppc_vcpu_run_hv(struct kvm
 
 	flush_all_to_thread(current);
 
+	/* Save userspace EBB and other register values */
+	if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
+		ebb_regs[0] = mfspr(SPRN_EBBHR);
+		ebb_regs[1] = mfspr(SPRN_EBBRR);
+		ebb_regs[2] = mfspr(SPRN_BESCR);
+		user_tar = mfspr(SPRN_TAR);
+	}
+	user_vrsave = mfspr(SPRN_VRSAVE);
+
 	vcpu->arch.wqp = &vcpu->arch.vcore->wq;
 	vcpu->arch.pgdir = current->mm->pgd;
 	vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST;
@@ -2850,6 +2891,16 @@ static int kvmppc_vcpu_run_hv(struct kvm
 			r = kvmppc_xics_rm_complete(vcpu, 0);
 	} while (is_kvmppc_resume_guest(r));
 
+	/* Restore userspace EBB and other register values */
+	if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
+		mtspr(SPRN_EBBHR, ebb_regs[0]);
+		mtspr(SPRN_EBBRR, ebb_regs[1]);
+		mtspr(SPRN_BESCR, ebb_regs[2]);
+		mtspr(SPRN_TAR, user_tar);
+		mtspr(SPRN_FSCR, current->thread.fscr);
+	}
+	mtspr(SPRN_VRSAVE, user_vrsave);
+
  out:
 	vcpu->arch.state = KVMPPC_VCPU_NOTREADY;
 	atomic_dec(&vcpu->kvm->arch.vcpus_running);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S linux-libre-4.9.52-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S
--- linux-libre-4.9-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2017-09-27 08:40:05.000000000 -0400
@@ -37,6 +37,13 @@
 #define NAPPING_CEDE	1
 #define NAPPING_NOVCPU	2
 
+/* Stack frame offsets for kvmppc_hv_entry */
+#define SFS			112
+#define STACK_SLOT_TRAP		(SFS-4)
+#define STACK_SLOT_CIABR	(SFS-16)
+#define STACK_SLOT_DAWR		(SFS-24)
+#define STACK_SLOT_DAWRX	(SFS-32)
+
 /*
  * Call kvmppc_hv_entry in real mode.
  * Must be called with interrupts hard-disabled.
@@ -289,10 +296,10 @@ kvm_novcpu_exit:
 	bl	kvmhv_accumulate_time
 #endif
 13:	mr	r3, r12
-	stw	r12, 112-4(r1)
+	stw	r12, STACK_SLOT_TRAP(r1)
 	bl	kvmhv_commence_exit
 	nop
-	lwz	r12, 112-4(r1)
+	lwz	r12, STACK_SLOT_TRAP(r1)
 	b	kvmhv_switch_to_host
 
 /*
@@ -537,7 +544,7 @@ kvmppc_hv_entry:
 	 */
 	mflr	r0
 	std	r0, PPC_LR_STKOFF(r1)
-	stdu	r1, -112(r1)
+	stdu	r1, -SFS(r1)
 
 	/* Save R1 in the PACA */
 	std	r1, HSTATE_HOST_R1(r13)
@@ -698,6 +705,16 @@ kvmppc_got_guest:
 	mtspr	SPRN_PURR,r7
 	mtspr	SPRN_SPURR,r8
 
+	/* Save host values of some registers */
+BEGIN_FTR_SECTION
+	mfspr	r5, SPRN_CIABR
+	mfspr	r6, SPRN_DAWR
+	mfspr	r7, SPRN_DAWRX
+	std	r5, STACK_SLOT_CIABR(r1)
+	std	r6, STACK_SLOT_DAWR(r1)
+	std	r7, STACK_SLOT_DAWRX(r1)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
 BEGIN_FTR_SECTION
 	/* Set partition DABR */
 	/* Do this before re-enabling PMU to avoid P7 DABR corruption bug */
@@ -1361,8 +1378,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 	 */
 	li	r0, 0
 	mtspr	SPRN_IAMR, r0
-	mtspr	SPRN_CIABR, r0
-	mtspr	SPRN_DAWRX, r0
+	mtspr	SPRN_PSPB, r0
 	mtspr	SPRN_TCSCR, r0
 	mtspr	SPRN_WORT, r0
 	/* Set MMCRS to 1<<31 to freeze and disable the SPMC counters */
@@ -1378,6 +1394,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 	std	r6,VCPU_UAMOR(r9)
 	li	r6,0
 	mtspr	SPRN_AMR,r6
+	mtspr	SPRN_UAMOR, r6
 
 	/* Switch DSCR back to host value */
 	mfspr	r8, SPRN_DSCR
@@ -1519,6 +1536,16 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 	slbia
 	ptesync
 
+	/* Restore host values of some registers */
+BEGIN_FTR_SECTION
+	ld	r5, STACK_SLOT_CIABR(r1)
+	ld	r6, STACK_SLOT_DAWR(r1)
+	ld	r7, STACK_SLOT_DAWRX(r1)
+	mtspr	SPRN_CIABR, r5
+	mtspr	SPRN_DAWR, r6
+	mtspr	SPRN_DAWRX, r7
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
+
 	/*
 	 * POWER7/POWER8 guest -> host partition switch code.
 	 * We don't have to lock against tlbies but we do
@@ -1652,8 +1679,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 	li	r0, KVM_GUEST_MODE_NONE
 	stb	r0, HSTATE_IN_GUEST(r13)
 
-	ld	r0, 112+PPC_LR_STKOFF(r1)
-	addi	r1, r1, 112
+	ld	r0, SFS+PPC_LR_STKOFF(r1)
+	addi	r1, r1, SFS
 	mtlr	r0
 	blr
 
@@ -2600,11 +2627,13 @@ kvmppc_save_tm:
 	mfctr	r7
 	mfspr	r8, SPRN_AMR
 	mfspr	r10, SPRN_TAR
+	mfxer	r11
 	std	r5, VCPU_LR_TM(r9)
 	stw	r6, VCPU_CR_TM(r9)
 	std	r7, VCPU_CTR_TM(r9)
 	std	r8, VCPU_AMR_TM(r9)
 	std	r10, VCPU_TAR_TM(r9)
+	std	r11, VCPU_XER_TM(r9)
 
 	/* Restore r12 as trap number. */
 	lwz	r12, VCPU_TRAP(r9)
@@ -2697,11 +2726,13 @@ kvmppc_restore_tm:
 	ld	r7, VCPU_CTR_TM(r4)
 	ld	r8, VCPU_AMR_TM(r4)
 	ld	r9, VCPU_TAR_TM(r4)
+	ld	r10, VCPU_XER_TM(r4)
 	mtlr	r5
 	mtcr	r6
 	mtctr	r7
 	mtspr	SPRN_AMR, r8
 	mtspr	SPRN_TAR, r9
+	mtxer	r10
 
 	/*
 	 * Load up PPR and DSCR values but don't put them in the actual SPRs
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c linux-libre-4.9.52-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c
--- linux-libre-4.9-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/kvm/book3s_hv_rm_mmu.c	2017-09-27 08:40:05.000000000 -0400
@@ -653,6 +653,8 @@ long kvmppc_h_protect(struct kvm_vcpu *v
 					      HPTE_V_ABSENT);
 			do_tlbies(kvm, &rb, 1, global_invalidates(kvm, flags),
 				  true);
+			/* Don't lose R/C bit updates done by hardware */
+			r |= be64_to_cpu(hpte[1]) & (HPTE_R_R | HPTE_R_C);
 			hpte[1] = cpu_to_be64(r);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/lib/sstep.c linux-libre-4.9.52-gnu/arch/powerpc/lib/sstep.c
--- linux-libre-4.9-gnu/arch/powerpc/lib/sstep.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/lib/sstep.c	2017-09-27 08:40:05.000000000 -0400
@@ -687,8 +687,10 @@ int __kprobes analyse_instr(struct instr
 	case 19:
 		switch ((instr >> 1) & 0x3ff) {
 		case 0:		/* mcrf */
-			rd = (instr >> 21) & 0x1c;
-			ra = (instr >> 16) & 0x1c;
+			rd = 7 - ((instr >> 23) & 0x7);
+			ra = 7 - ((instr >> 18) & 0x7);
+			rd *= 4;
+			ra *= 4;
 			val = (regs->ccr >> ra) & 0xf;
 			regs->ccr = (regs->ccr & ~(0xfUL << rd)) | (val << rd);
 			goto instr_done;
@@ -968,6 +970,19 @@ int __kprobes analyse_instr(struct instr
 #endif
 
 		case 19:	/* mfcr */
+			if ((instr >> 20) & 1) {
+				imm = 0xf0000000UL;
+				for (sh = 0; sh < 8; ++sh) {
+					if (instr & (0x80000 >> sh)) {
+						regs->gpr[rd] = regs->ccr & imm;
+						break;
+					}
+					imm >>= 4;
+				}
+
+				goto instr_done;
+			}
+
 			regs->gpr[rd] = regs->ccr;
 			regs->gpr[rd] &= 0xffffffffUL;
 			goto instr_done;
@@ -1807,8 +1822,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto instr_done;
 
 	case LARX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (op.ea & (size - 1))
 			break;		/* can't handle misaligned */
 		err = -EFAULT;
@@ -1832,8 +1845,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto ldst_done;
 
 	case STCX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (op.ea & (size - 1))
 			break;		/* can't handle misaligned */
 		err = -EFAULT;
@@ -1859,8 +1870,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto ldst_done;
 
 	case LOAD:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = read_mem(&regs->gpr[op.reg], op.ea, size, regs);
 		if (!err) {
 			if (op.type & SIGNEXT)
@@ -1872,8 +1881,6 @@ int __kprobes emulate_step(struct pt_reg
 
 #ifdef CONFIG_PPC_FPU
 	case LOAD_FP:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (size == 4)
 			err = do_fp_load(op.reg, do_lfs, op.ea, size, regs);
 		else
@@ -1882,15 +1889,11 @@ int __kprobes emulate_step(struct pt_reg
 #endif
 #ifdef CONFIG_ALTIVEC
 	case LOAD_VMX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vec_load(op.reg, do_lvx, op.ea & ~0xfUL, regs);
 		goto ldst_done;
 #endif
 #ifdef CONFIG_VSX
 	case LOAD_VSX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vsx_load(op.reg, do_lxvd2x, op.ea, regs);
 		goto ldst_done;
 #endif
@@ -1913,8 +1916,6 @@ int __kprobes emulate_step(struct pt_reg
 		goto instr_done;
 
 	case STORE:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if ((op.type & UPDATE) && size == sizeof(long) &&
 		    op.reg == 1 && op.update_reg == 1 &&
 		    !(regs->msr & MSR_PR) &&
@@ -1927,8 +1928,6 @@ int __kprobes emulate_step(struct pt_reg
 
 #ifdef CONFIG_PPC_FPU
 	case STORE_FP:
-		if (regs->msr & MSR_LE)
-			return 0;
 		if (size == 4)
 			err = do_fp_store(op.reg, do_stfs, op.ea, size, regs);
 		else
@@ -1937,15 +1936,11 @@ int __kprobes emulate_step(struct pt_reg
 #endif
 #ifdef CONFIG_ALTIVEC
 	case STORE_VMX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vec_store(op.reg, do_stvx, op.ea & ~0xfUL, regs);
 		goto ldst_done;
 #endif
 #ifdef CONFIG_VSX
 	case STORE_VSX:
-		if (regs->msr & MSR_LE)
-			return 0;
 		err = do_vsx_store(op.reg, do_stxvd2x, op.ea, regs);
 		goto ldst_done;
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/hash_native_64.c linux-libre-4.9.52-gnu/arch/powerpc/mm/hash_native_64.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/hash_native_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/hash_native_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -221,13 +221,18 @@ static long native_hpte_insert(unsigned
 		return -1;
 
 	hpte_v = hpte_encode_v(vpn, psize, apsize, ssize) | vflags | HPTE_V_VALID;
-	hpte_r = hpte_encode_r(pa, psize, apsize, ssize) | rflags;
+	hpte_r = hpte_encode_r(pa, psize, apsize) | rflags;
 
 	if (!(vflags & HPTE_V_BOLTED)) {
 		DBG_LOW(" i=%x hpte_v=%016lx, hpte_r=%016lx\n",
 			i, hpte_v, hpte_r);
 	}
 
+	if (cpu_has_feature(CPU_FTR_ARCH_300)) {
+		hpte_r = hpte_old_to_new_r(hpte_v, hpte_r);
+		hpte_v = hpte_old_to_new_v(hpte_v);
+	}
+
 	hptep->r = cpu_to_be64(hpte_r);
 	/* Guarantee the second dword is visible before the valid bit */
 	eieio();
@@ -295,6 +300,8 @@ static long native_hpte_updatepp(unsigne
 		vpn, want_v & HPTE_V_AVPN, slot, newpp);
 
 	hpte_v = be64_to_cpu(hptep->v);
+	if (cpu_has_feature(CPU_FTR_ARCH_300))
+		hpte_v = hpte_new_to_old_v(hpte_v, be64_to_cpu(hptep->r));
 	/*
 	 * We need to invalidate the TLB always because hpte_remove doesn't do
 	 * a tlb invalidate. If a hash bucket gets full, we "evict" a more/less
@@ -309,6 +316,8 @@ static long native_hpte_updatepp(unsigne
 		native_lock_hpte(hptep);
 		/* recheck with locks held */
 		hpte_v = be64_to_cpu(hptep->v);
+		if (cpu_has_feature(CPU_FTR_ARCH_300))
+			hpte_v = hpte_new_to_old_v(hpte_v, be64_to_cpu(hptep->r));
 		if (unlikely(!HPTE_V_COMPARE(hpte_v, want_v) ||
 			     !(hpte_v & HPTE_V_VALID))) {
 			ret = -1;
@@ -350,6 +359,8 @@ static long native_hpte_find(unsigned lo
 	for (i = 0; i < HPTES_PER_GROUP; i++) {
 		hptep = htab_address + slot;
 		hpte_v = be64_to_cpu(hptep->v);
+		if (cpu_has_feature(CPU_FTR_ARCH_300))
+			hpte_v = hpte_new_to_old_v(hpte_v, be64_to_cpu(hptep->r));
 
 		if (HPTE_V_COMPARE(hpte_v, want_v) && (hpte_v & HPTE_V_VALID))
 			/* HPTE matches */
@@ -409,6 +420,8 @@ static void native_hpte_invalidate(unsig
 	want_v = hpte_encode_avpn(vpn, bpsize, ssize);
 	native_lock_hpte(hptep);
 	hpte_v = be64_to_cpu(hptep->v);
+	if (cpu_has_feature(CPU_FTR_ARCH_300))
+		hpte_v = hpte_new_to_old_v(hpte_v, be64_to_cpu(hptep->r));
 
 	/*
 	 * We need to invalidate the TLB always because hpte_remove doesn't do
@@ -467,6 +480,8 @@ static void native_hugepage_invalidate(u
 		want_v = hpte_encode_avpn(vpn, psize, ssize);
 		native_lock_hpte(hptep);
 		hpte_v = be64_to_cpu(hptep->v);
+		if (cpu_has_feature(CPU_FTR_ARCH_300))
+			hpte_v = hpte_new_to_old_v(hpte_v, be64_to_cpu(hptep->r));
 
 		/* Even if we miss, we need to invalidate the TLB */
 		if (!HPTE_V_COMPARE(hpte_v, want_v) || !(hpte_v & HPTE_V_VALID))
@@ -504,6 +519,10 @@ static void hpte_decode(struct hash_pte
 	/* Look at the 8 bit LP value */
 	unsigned int lp = (hpte_r >> LP_SHIFT) & ((1 << LP_BITS) - 1);
 
+	if (cpu_has_feature(CPU_FTR_ARCH_300)) {
+		hpte_v = hpte_new_to_old_v(hpte_v, hpte_r);
+		hpte_r = hpte_new_to_old_r(hpte_r);
+	}
 	if (!(hpte_v & HPTE_V_LARGE)) {
 		size   = MMU_PAGE_4K;
 		a_size = MMU_PAGE_4K;
@@ -512,11 +531,7 @@ static void hpte_decode(struct hash_pte
 		a_size = hpte_page_sizes[lp] >> 4;
 	}
 	/* This works for all page sizes, and for 256M and 1T segments */
-	if (cpu_has_feature(CPU_FTR_ARCH_300))
-		*ssize = hpte_r >> HPTE_R_3_0_SSIZE_SHIFT;
-	else
-		*ssize = hpte_v >> HPTE_V_SSIZE_SHIFT;
-
+	*ssize = hpte_v >> HPTE_V_SSIZE_SHIFT;
 	shift = mmu_psize_defs[size].shift;
 
 	avpn = (HPTE_V_AVPN_VAL(hpte_v) & ~mmu_psize_defs[size].avpnm);
@@ -621,6 +636,10 @@ static void native_flush_hash_range(unsi
 	unsigned long psize = batch->psize;
 	int ssize = batch->ssize;
 	int i;
+	unsigned int use_local;
+
+	use_local = local && mmu_has_feature(MMU_FTR_TLBIEL) &&
+		mmu_psize_defs[psize].tlbiel && !cxl_ctx_in_use();
 
 	local_irq_save(flags);
 
@@ -639,6 +658,9 @@ static void native_flush_hash_range(unsi
 			want_v = hpte_encode_avpn(vpn, psize, ssize);
 			native_lock_hpte(hptep);
 			hpte_v = be64_to_cpu(hptep->v);
+			if (cpu_has_feature(CPU_FTR_ARCH_300))
+				hpte_v = hpte_new_to_old_v(hpte_v,
+						be64_to_cpu(hptep->r));
 			if (!HPTE_V_COMPARE(hpte_v, want_v) ||
 			    !(hpte_v & HPTE_V_VALID))
 				native_unlock_hpte(hptep);
@@ -647,8 +669,7 @@ static void native_flush_hash_range(unsi
 		} pte_iterate_hashed_end();
 	}
 
-	if (mmu_has_feature(MMU_FTR_TLBIEL) &&
-	    mmu_psize_defs[psize].tlbiel && local) {
+	if (use_local) {
 		asm volatile("ptesync":::"memory");
 		for (i = 0; i < number; i++) {
 			vpn = batch->vpn[i];
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/hugetlbpage-radix.c linux-libre-4.9.52-gnu/arch/powerpc/mm/hugetlbpage-radix.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/hugetlbpage-radix.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/hugetlbpage-radix.c	2017-09-27 08:40:05.000000000 -0400
@@ -65,7 +65,7 @@ radix__hugetlb_get_unmapped_area(struct
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/init_64.c linux-libre-4.9.52-gnu/arch/powerpc/mm/init_64.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/init_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/init_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -424,7 +424,8 @@ early_param("disable_radix", parse_disab
 void __init mmu_early_init_devtree(void)
 {
 	/* Disable radix mode based on kernel command line. */
-	if (disable_radix)
+	/* We don't yet have the machinery to do radix as a guest. */
+	if (disable_radix || !(mfmsr() & MSR_HV))
 		cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX;
 
 	if (early_radix_enabled())
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/mmap.c linux-libre-4.9.52-gnu/arch/powerpc/mm/mmap.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -106,7 +106,7 @@ radix__arch_get_unmapped_area(struct fil
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -142,7 +142,7 @@ radix__arch_get_unmapped_area_topdown(st
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/mmu_context_book3s64.c linux-libre-4.9.52-gnu/arch/powerpc/mm/mmu_context_book3s64.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/mmu_context_book3s64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/mmu_context_book3s64.c	2017-09-27 08:40:05.000000000 -0400
@@ -115,7 +115,7 @@ int init_new_context(struct task_struct
 	mm->context.pte_frag = NULL;
 #endif
 #ifdef CONFIG_SPAPR_TCE_IOMMU
-	mm_iommu_init(&mm->context);
+	mm_iommu_init(mm);
 #endif
 	return 0;
 }
@@ -156,22 +156,26 @@ static inline void destroy_pagetable_pag
 }
 #endif
 
-
 void destroy_context(struct mm_struct *mm)
 {
 #ifdef CONFIG_SPAPR_TCE_IOMMU
-	mm_iommu_cleanup(&mm->context);
+	WARN_ON_ONCE(!list_empty(&mm->context.iommu_group_mem_list));
 #endif
-
 #ifdef CONFIG_PPC_ICSWX
 	drop_cop(mm->context.acop, mm);
 	kfree(mm->context.cop_lockp);
 	mm->context.cop_lockp = NULL;
 #endif /* CONFIG_PPC_ICSWX */
 
-	if (radix_enabled())
-		process_tb[mm->context.id].prtb1 = 0;
-	else
+	if (radix_enabled()) {
+		/*
+		 * Radix doesn't have a valid bit in the process table
+		 * entries. However we know that at least P9 implementation
+		 * will avoid caching an entry with an invalid RTS field,
+		 * and 0 is invalid. So this will do.
+		 */
+		process_tb[mm->context.id].prtb0 = 0;
+	} else
 		subpage_prot_free(mm);
 	destroy_pagetable_page(mm);
 	__destroy_context(mm->context.id);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/mmu_context_iommu.c linux-libre-4.9.52-gnu/arch/powerpc/mm/mmu_context_iommu.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/mmu_context_iommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/mmu_context_iommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -56,7 +56,7 @@ static long mm_iommu_adjust_locked_vm(st
 	}
 
 	pr_debug("[%d] RLIMIT_MEMLOCK HASH64 %c%ld %ld/%ld\n",
-			current->pid,
+			current ? current->pid : 0,
 			incr ? '+' : '-',
 			npages << PAGE_SHIFT,
 			mm->locked_vm << PAGE_SHIFT,
@@ -66,12 +66,9 @@ static long mm_iommu_adjust_locked_vm(st
 	return ret;
 }
 
-bool mm_iommu_preregistered(void)
+bool mm_iommu_preregistered(struct mm_struct *mm)
 {
-	if (!current || !current->mm)
-		return false;
-
-	return !list_empty(&current->mm->context.iommu_group_mem_list);
+	return !list_empty(&mm->context.iommu_group_mem_list);
 }
 EXPORT_SYMBOL_GPL(mm_iommu_preregistered);
 
@@ -84,7 +81,7 @@ struct page *new_iommu_non_cma_page(stru
 	gfp_t gfp_mask = GFP_USER;
 	struct page *new_page;
 
-	if (PageHuge(page) || PageTransHuge(page) || PageCompound(page))
+	if (PageCompound(page))
 		return NULL;
 
 	if (PageHighMem(page))
@@ -103,7 +100,7 @@ static int mm_iommu_move_page_from_cma(s
 	LIST_HEAD(cma_migrate_pages);
 
 	/* Ignore huge pages for now */
-	if (PageHuge(page) || PageTransHuge(page) || PageCompound(page))
+	if (PageCompound(page))
 		return -EBUSY;
 
 	lru_add_drain();
@@ -124,19 +121,16 @@ static int mm_iommu_move_page_from_cma(s
 	return 0;
 }
 
-long mm_iommu_get(unsigned long ua, unsigned long entries,
+long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries,
 		struct mm_iommu_table_group_mem_t **pmem)
 {
 	struct mm_iommu_table_group_mem_t *mem;
 	long i, j, ret = 0, locked_entries = 0;
 	struct page *page = NULL;
 
-	if (!current || !current->mm)
-		return -ESRCH; /* process exited */
-
 	mutex_lock(&mem_list_mutex);
 
-	list_for_each_entry_rcu(mem, &current->mm->context.iommu_group_mem_list,
+	list_for_each_entry_rcu(mem, &mm->context.iommu_group_mem_list,
 			next) {
 		if ((mem->ua == ua) && (mem->entries == entries)) {
 			++mem->used;
@@ -154,7 +148,7 @@ long mm_iommu_get(unsigned long ua, unsi
 
 	}
 
-	ret = mm_iommu_adjust_locked_vm(current->mm, entries, true);
+	ret = mm_iommu_adjust_locked_vm(mm, entries, true);
 	if (ret)
 		goto unlock_exit;
 
@@ -190,7 +184,7 @@ long mm_iommu_get(unsigned long ua, unsi
 		 * of the CMA zone if possible. NOTE: faulting in + migration
 		 * can be expensive. Batching can be considered later
 		 */
-		if (get_pageblock_migratetype(page) == MIGRATE_CMA) {
+		if (is_migrate_cma_page(page)) {
 			if (mm_iommu_move_page_from_cma(page))
 				goto populate;
 			if (1 != get_user_pages_fast(ua + (i << PAGE_SHIFT),
@@ -215,11 +209,11 @@ populate:
 	mem->entries = entries;
 	*pmem = mem;
 
-	list_add_rcu(&mem->next, &current->mm->context.iommu_group_mem_list);
+	list_add_rcu(&mem->next, &mm->context.iommu_group_mem_list);
 
 unlock_exit:
 	if (locked_entries && ret)
-		mm_iommu_adjust_locked_vm(current->mm, locked_entries, false);
+		mm_iommu_adjust_locked_vm(mm, locked_entries, false);
 
 	mutex_unlock(&mem_list_mutex);
 
@@ -264,17 +258,13 @@ static void mm_iommu_free(struct rcu_hea
 static void mm_iommu_release(struct mm_iommu_table_group_mem_t *mem)
 {
 	list_del_rcu(&mem->next);
-	mm_iommu_adjust_locked_vm(current->mm, mem->entries, false);
 	call_rcu(&mem->rcu, mm_iommu_free);
 }
 
-long mm_iommu_put(struct mm_iommu_table_group_mem_t *mem)
+long mm_iommu_put(struct mm_struct *mm, struct mm_iommu_table_group_mem_t *mem)
 {
 	long ret = 0;
 
-	if (!current || !current->mm)
-		return -ESRCH; /* process exited */
-
 	mutex_lock(&mem_list_mutex);
 
 	if (mem->used == 0) {
@@ -297,6 +287,8 @@ long mm_iommu_put(struct mm_iommu_table_
 	/* @mapped became 0 so now mappings are disabled, release the region */
 	mm_iommu_release(mem);
 
+	mm_iommu_adjust_locked_vm(mm, mem->entries, false);
+
 unlock_exit:
 	mutex_unlock(&mem_list_mutex);
 
@@ -304,14 +296,12 @@ unlock_exit:
 }
 EXPORT_SYMBOL_GPL(mm_iommu_put);
 
-struct mm_iommu_table_group_mem_t *mm_iommu_lookup(unsigned long ua,
-		unsigned long size)
+struct mm_iommu_table_group_mem_t *mm_iommu_lookup(struct mm_struct *mm,
+		unsigned long ua, unsigned long size)
 {
 	struct mm_iommu_table_group_mem_t *mem, *ret = NULL;
 
-	list_for_each_entry_rcu(mem,
-			&current->mm->context.iommu_group_mem_list,
-			next) {
+	list_for_each_entry_rcu(mem, &mm->context.iommu_group_mem_list, next) {
 		if ((mem->ua <= ua) &&
 				(ua + size <= mem->ua +
 				 (mem->entries << PAGE_SHIFT))) {
@@ -324,14 +314,12 @@ struct mm_iommu_table_group_mem_t *mm_io
 }
 EXPORT_SYMBOL_GPL(mm_iommu_lookup);
 
-struct mm_iommu_table_group_mem_t *mm_iommu_find(unsigned long ua,
-		unsigned long entries)
+struct mm_iommu_table_group_mem_t *mm_iommu_find(struct mm_struct *mm,
+		unsigned long ua, unsigned long entries)
 {
 	struct mm_iommu_table_group_mem_t *mem, *ret = NULL;
 
-	list_for_each_entry_rcu(mem,
-			&current->mm->context.iommu_group_mem_list,
-			next) {
+	list_for_each_entry_rcu(mem, &mm->context.iommu_group_mem_list, next) {
 		if ((mem->ua == ua) && (mem->entries == entries)) {
 			ret = mem;
 			break;
@@ -373,17 +361,7 @@ void mm_iommu_mapped_dec(struct mm_iommu
 }
 EXPORT_SYMBOL_GPL(mm_iommu_mapped_dec);
 
-void mm_iommu_init(mm_context_t *ctx)
-{
-	INIT_LIST_HEAD_RCU(&ctx->iommu_group_mem_list);
-}
-
-void mm_iommu_cleanup(mm_context_t *ctx)
+void mm_iommu_init(struct mm_struct *mm)
 {
-	struct mm_iommu_table_group_mem_t *mem, *tmp;
-
-	list_for_each_entry_safe(mem, tmp, &ctx->iommu_group_mem_list, next) {
-		list_del_rcu(&mem->next);
-		mm_iommu_do_free(mem);
-	}
+	INIT_LIST_HEAD_RCU(&mm->context.iommu_group_mem_list);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/pgtable-radix.c linux-libre-4.9.52-gnu/arch/powerpc/mm/pgtable-radix.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/pgtable-radix.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/pgtable-radix.c	2017-09-27 08:40:05.000000000 -0400
@@ -65,7 +65,7 @@ int radix__map_kernel_page(unsigned long
 		if (!pmdp)
 			return -ENOMEM;
 		if (map_page_size == PMD_SIZE) {
-			ptep = (pte_t *)pudp;
+			ptep = pmdp_ptep(pmdp);
 			goto set_the_pte;
 		}
 		ptep = pte_alloc_kernel(pmdp, ea);
@@ -90,7 +90,7 @@ int radix__map_kernel_page(unsigned long
 		}
 		pmdp = pmd_offset(pudp, ea);
 		if (map_page_size == PMD_SIZE) {
-			ptep = (pte_t *)pudp;
+			ptep = pmdp_ptep(pmdp);
 			goto set_the_pte;
 		}
 		if (!pmd_present(*pmdp)) {
@@ -159,7 +159,7 @@ redo:
 	 * Allocate Partition table and process table for the
 	 * host.
 	 */
-	BUILD_BUG_ON_MSG((PRTB_SIZE_SHIFT > 23), "Process table size too large.");
+	BUILD_BUG_ON_MSG((PRTB_SIZE_SHIFT > 36), "Process table size too large.");
 	process_tb = early_alloc_pgtable(1UL << PRTB_SIZE_SHIFT);
 	/*
 	 * Fill in the process table.
@@ -181,7 +181,7 @@ static void __init radix_init_partition_
 
 	rts_field = radix__get_tree_size();
 
-	BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 24), "Partition table size too large.");
+	BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 36), "Partition table size too large.");
 	partition_tb = early_alloc_pgtable(1UL << PATB_SIZE_SHIFT);
 	partition_tb->patb0 = cpu_to_be64(rts_field | __pa(init_mm.pgd) |
 					  RADIX_PGD_INDEX_SIZE | PATB_HR);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/slice.c linux-libre-4.9.52-gnu/arch/powerpc/mm/slice.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/slice.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/slice.c	2017-09-27 08:40:05.000000000 -0400
@@ -105,7 +105,7 @@ static int slice_area_is_free(struct mm_
 	if ((mm->task_size - len) < addr)
 		return 0;
 	vma = find_vma(mm, addr);
-	return (!vma || (addr + len) <= vma->vm_start);
+	return (!vma || (addr + len) <= vm_start_gap(vma));
 }
 
 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/mm/tlb-radix.c linux-libre-4.9.52-gnu/arch/powerpc/mm/tlb-radix.c
--- linux-libre-4.9-gnu/arch/powerpc/mm/tlb-radix.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/mm/tlb-radix.c	2017-09-27 08:40:05.000000000 -0400
@@ -50,9 +50,7 @@ static inline void _tlbiel_pid(unsigned
 	for (set = 0; set < POWER9_TLB_SETS_RADIX ; set++) {
 		__tlbiel_pid(pid, set, ric);
 	}
-	if (cpu_has_feature(CPU_FTR_POWER9_DD1))
-		asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
-	return;
+	asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
 }
 
 static inline void _tlbie_pid(unsigned long pid, unsigned long ric)
@@ -85,8 +83,6 @@ static inline void _tlbiel_va(unsigned l
 	asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)
 		     : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
 	asm volatile("ptesync": : :"memory");
-	if (cpu_has_feature(CPU_FTR_POWER9_DD1))
-		asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
 }
 
 static inline void _tlbie_va(unsigned long va, unsigned long pid,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/perf/perf_regs.c linux-libre-4.9.52-gnu/arch/powerpc/perf/perf_regs.c
--- linux-libre-4.9-gnu/arch/powerpc/perf/perf_regs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/perf/perf_regs.c	2017-09-27 08:40:05.000000000 -0400
@@ -100,5 +100,6 @@ void perf_get_regs_user(struct perf_regs
 			struct pt_regs *regs_user_copy)
 {
 	regs_user->regs = task_pt_regs(current);
-	regs_user->abi  = perf_reg_abi(current);
+	regs_user->abi = (regs_user->regs) ? perf_reg_abi(current) :
+			 PERF_SAMPLE_REGS_ABI_NONE;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/perf/power9-events-list.h linux-libre-4.9.52-gnu/arch/powerpc/perf/power9-events-list.h
--- linux-libre-4.9-gnu/arch/powerpc/perf/power9-events-list.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/perf/power9-events-list.h	2017-09-27 08:40:05.000000000 -0400
@@ -16,7 +16,7 @@ EVENT(PM_CYC,					0x0001e)
 EVENT(PM_ICT_NOSLOT_CYC,			0x100f8)
 EVENT(PM_CMPLU_STALL,				0x1e054)
 EVENT(PM_INST_CMPL,				0x00002)
-EVENT(PM_BRU_CMPL,				0x40060)
+EVENT(PM_BRU_CMPL,				0x10012)
 EVENT(PM_BR_MPRED_CMPL,				0x400f6)
 
 /* All L1 D cache load references counted at finish, gated by reject */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/cell/spu_base.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/cell/spu_base.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/cell/spu_base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/cell/spu_base.c	2017-09-27 08:40:05.000000000 -0400
@@ -197,7 +197,9 @@ static int __spu_trap_data_map(struct sp
 	    (REGION_ID(ea) != USER_REGION_ID)) {
 
 		spin_unlock(&spu->register_lock);
-		ret = hash_page(ea, _PAGE_PRESENT | _PAGE_READ, 0x300, dsisr);
+		ret = hash_page(ea,
+				_PAGE_PRESENT | _PAGE_READ | _PAGE_PRIVILEGED,
+				0x300, dsisr);
 		spin_lock(&spu->register_lock);
 
 		if (!ret) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S linux-libre-4.9.52-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S
--- linux-libre-4.9-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/powernv/opal-wrappers.S	2017-09-27 08:40:05.000000000 -0400
@@ -146,7 +146,7 @@ opal_tracepoint_entry:
 opal_tracepoint_return:
 	std	r3,STK_REG(R31)(r1)
 	mr	r4,r3
-	ld	r0,STK_REG(R23)(r1)
+	ld	r3,STK_REG(R23)(r1)
 	bl	__trace_opal_exit
 	ld	r3,STK_REG(R31)(r1)
 	addi	r1,r1,STACKFRAMESIZE
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/powernv/pci-ioda.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/powernv/pci-ioda.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/powernv/pci-ioda.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/powernv/pci-ioda.c	2017-09-27 08:40:05.000000000 -0400
@@ -145,7 +145,7 @@ static struct pnv_ioda_pe *pnv_ioda_init
 	 */
 	rc = opal_pci_eeh_freeze_clear(phb->opal_id, pe_no,
 				       OPAL_EEH_ACTION_CLEAR_FREEZE_ALL);
-	if (rc != OPAL_SUCCESS)
+	if (rc != OPAL_SUCCESS && rc != OPAL_UNSUPPORTED)
 		pr_warn("%s: Error %lld unfreezing PHB#%d-PE#%d\n",
 			__func__, rc, phb->hose->global_number, pe_no);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/powernv/smp.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/powernv/smp.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/powernv/smp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/powernv/smp.c	2017-09-27 08:40:05.000000000 -0400
@@ -155,8 +155,10 @@ static void pnv_smp_cpu_kill_self(void)
 		wmask = SRR1_WAKEMASK_P8;
 
 	idle_states = pnv_get_supported_cpuidle_states();
+
 	/* We don't want to take decrementer interrupts while we are offline,
-	 * so clear LPCR:PECE1. We keep PECE2 enabled.
+	 * so clear LPCR:PECE1. We keep PECE2 (and LPCR_PECE_HVEE on P9)
+	 * enabled as to let IPIs in.
 	 */
 	mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1);
 
@@ -206,8 +208,12 @@ static void pnv_smp_cpu_kill_self(void)
 		 * contains 0.
 		 */
 		if (((srr1 & wmask) == SRR1_WAKEEE) ||
+		    ((srr1 & wmask) == SRR1_WAKEHVI) ||
 		    (local_paca->irq_happened & PACA_IRQ_EE)) {
-			icp_native_flush_interrupt();
+			if (cpu_has_feature(CPU_FTR_ARCH_300))
+				icp_opal_flush_interrupt();
+			else
+				icp_native_flush_interrupt();
 		} else if ((srr1 & wmask) == SRR1_WAKEHDBELL) {
 			unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
 			asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
@@ -221,6 +227,8 @@ static void pnv_smp_cpu_kill_self(void)
 		if (srr1 && !generic_check_cpu_restart(cpu))
 			DBG("CPU%d Unexpected exit while offline !\n", cpu);
 	}
+
+	/* Re-enable decrementer interrupts */
 	mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_PECE1);
 	DBG("CPU%d coming online...\n", cpu);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/ps3/htab.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/ps3/htab.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/ps3/htab.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/ps3/htab.c	2017-09-27 08:40:05.000000000 -0400
@@ -63,7 +63,7 @@ static long ps3_hpte_insert(unsigned lon
 	vflags &= ~HPTE_V_SECONDARY;
 
 	hpte_v = hpte_encode_v(vpn, psize, apsize, ssize) | vflags | HPTE_V_VALID;
-	hpte_r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize, apsize, ssize) | rflags;
+	hpte_r = hpte_encode_r(ps3_mm_phys_to_lpar(pa), psize, apsize) | rflags;
 
 	spin_lock_irqsave(&ps3_htab_lock, flags);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/dlpar.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/dlpar.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/dlpar.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/dlpar.c	2017-09-27 08:40:05.000000000 -0400
@@ -288,7 +288,6 @@ int dlpar_detach_node(struct device_node
 	if (rc)
 		return rc;
 
-	of_node_put(dn); /* Must decrement the refcount */
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/hotplug-memory.c	2017-09-27 08:40:05.000000000 -0400
@@ -124,6 +124,7 @@ static struct property *dlpar_clone_drco
 	for (i = 0; i < num_lmbs; i++) {
 		lmbs[i].base_addr = be64_to_cpu(lmbs[i].base_addr);
 		lmbs[i].drc_index = be32_to_cpu(lmbs[i].drc_index);
+		lmbs[i].aa_index = be32_to_cpu(lmbs[i].aa_index);
 		lmbs[i].flags = be32_to_cpu(lmbs[i].flags);
 	}
 
@@ -147,6 +148,7 @@ static void dlpar_update_drconf_property
 	for (i = 0; i < num_lmbs; i++) {
 		lmbs[i].base_addr = cpu_to_be64(lmbs[i].base_addr);
 		lmbs[i].drc_index = cpu_to_be32(lmbs[i].drc_index);
+		lmbs[i].aa_index = cpu_to_be32(lmbs[i].aa_index);
 		lmbs[i].flags = cpu_to_be32(lmbs[i].flags);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/lpar.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/lpar.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/lpar.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/lpar.c	2017-09-27 08:40:05.000000000 -0400
@@ -145,7 +145,7 @@ static long pSeries_lpar_hpte_insert(uns
 			 hpte_group, vpn,  pa, rflags, vflags, psize);
 
 	hpte_v = hpte_encode_v(vpn, psize, apsize, ssize) | vflags | HPTE_V_VALID;
-	hpte_r = hpte_encode_r(pa, psize, apsize, ssize) | rflags;
+	hpte_r = hpte_encode_r(pa, psize, apsize) | rflags;
 
 	if (!(vflags & HPTE_V_BOLTED))
 		pr_devel(" hpte_v=%016lx, hpte_r=%016lx\n", hpte_v, hpte_r);
@@ -279,7 +279,7 @@ static long pSeries_lpar_hpte_updatepp(u
 				       int ssize, unsigned long inv_flags)
 {
 	unsigned long lpar_rc;
-	unsigned long flags = (newpp & 7) | H_AVPN;
+	unsigned long flags;
 	unsigned long want_v;
 
 	want_v = hpte_encode_avpn(vpn, psize, ssize);
@@ -287,6 +287,11 @@ static long pSeries_lpar_hpte_updatepp(u
 	pr_devel("    update: avpnv=%016lx, hash=%016lx, f=%lx, psize: %d ...",
 		 want_v, slot, flags, psize);
 
+	flags = (newpp & 7) | H_AVPN;
+	if (mmu_has_feature(MMU_FTR_KERNEL_RO))
+		/* Move pp0 into bit 8 (IBM 55) */
+		flags |= (newpp & HPTE_R_PP0) >> 55;
+
 	lpar_rc = plpar_pte_protect(flags, slot, want_v);
 
 	if (lpar_rc == H_NOT_FOUND) {
@@ -358,6 +363,10 @@ static void pSeries_lpar_hpte_updatebolt
 	BUG_ON(slot == -1);
 
 	flags = newpp & 7;
+	if (mmu_has_feature(MMU_FTR_KERNEL_RO))
+		/* Move pp0 into bit 8 (IBM 55) */
+		flags |= (newpp & HPTE_R_PP0) >> 55;
+
 	lpar_rc = plpar_pte_protect(flags, slot, 0);
 
 	BUG_ON(lpar_rc != H_SUCCESS);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/reconfig.c linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/reconfig.c
--- linux-libre-4.9-gnu/arch/powerpc/platforms/pseries/reconfig.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/platforms/pseries/reconfig.c	2017-09-27 08:40:05.000000000 -0400
@@ -82,7 +82,6 @@ static int pSeries_reconfig_remove_node(
 
 	of_detach_node(np);
 	of_node_put(parent);
-	of_node_put(np); /* Must decrement the refcount */
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/sysdev/simple_gpio.c linux-libre-4.9.52-gnu/arch/powerpc/sysdev/simple_gpio.c
--- linux-libre-4.9-gnu/arch/powerpc/sysdev/simple_gpio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/sysdev/simple_gpio.c	2017-09-27 08:40:05.000000000 -0400
@@ -75,7 +75,8 @@ static int u8_gpio_dir_out(struct gpio_c
 
 static void u8_gpio_save_regs(struct of_mm_gpio_chip *mm_gc)
 {
-	struct u8_gpio_chip *u8_gc = gpiochip_get_data(&mm_gc->gc);
+	struct u8_gpio_chip *u8_gc =
+		container_of(mm_gc, struct u8_gpio_chip, mm_gc);
 
 	u8_gc->data = in_8(mm_gc->regs);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/sysdev/xics/icp-opal.c linux-libre-4.9.52-gnu/arch/powerpc/sysdev/xics/icp-opal.c
--- linux-libre-4.9-gnu/arch/powerpc/sysdev/xics/icp-opal.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/sysdev/xics/icp-opal.c	2017-09-27 08:40:05.000000000 -0400
@@ -20,6 +20,7 @@
 #include <asm/xics.h>
 #include <asm/io.h>
 #include <asm/opal.h>
+#include <asm/kvm_ppc.h>
 
 static void icp_opal_teardown_cpu(void)
 {
@@ -39,7 +40,26 @@ static void icp_opal_flush_ipi(void)
 	 * Should we be flagging idle loop instead?
 	 * Or creating some task to be scheduled?
 	 */
-	opal_int_eoi((0x00 << 24) | XICS_IPI);
+	if (opal_int_eoi((0x00 << 24) | XICS_IPI) > 0)
+		force_external_irq_replay();
+}
+
+static unsigned int icp_opal_get_xirr(void)
+{
+	unsigned int kvm_xirr;
+	__be32 hw_xirr;
+	int64_t rc;
+
+	/* Handle an interrupt latched by KVM first */
+	kvm_xirr = kvmppc_get_xics_latch();
+	if (kvm_xirr)
+		return kvm_xirr;
+
+	/* Then ask OPAL */
+	rc = opal_int_get_xirr(&hw_xirr, false);
+	if (rc < 0)
+		return 0;
+	return be32_to_cpu(hw_xirr);
 }
 
 static unsigned int icp_opal_get_irq(void)
@@ -47,12 +67,8 @@ static unsigned int icp_opal_get_irq(voi
 	unsigned int xirr;
 	unsigned int vec;
 	unsigned int irq;
-	int64_t rc;
 
-	rc = opal_int_get_xirr(&xirr, false);
-	if (rc < 0)
-		return 0;
-	xirr = be32_to_cpu(xirr);
+	xirr = icp_opal_get_xirr();
 	vec = xirr & 0x00ffffff;
 	if (vec == XICS_IRQ_SPURIOUS)
 		return 0;
@@ -67,13 +83,24 @@ static unsigned int icp_opal_get_irq(voi
 	xics_mask_unknown_vec(vec);
 
 	/* We might learn about it later, so EOI it */
-	opal_int_eoi(xirr);
+	if (opal_int_eoi(xirr) > 0)
+		force_external_irq_replay();
 
 	return 0;
 }
 
 static void icp_opal_set_cpu_priority(unsigned char cppr)
 {
+	/*
+	 * Here be dragons. The caller has asked to allow only IPI's and not
+	 * external interrupts. But OPAL XIVE doesn't support that. So instead
+	 * of allowing no interrupts allow all. That's still not right, but
+	 * currently the only caller who does this is xics_migrate_irqs_away()
+	 * and it works in that case.
+	 */
+	if (cppr >= DEFAULT_PRIORITY)
+		cppr = LOWEST_PRIORITY;
+
 	xics_set_base_cppr(cppr);
 	opal_int_set_cppr(cppr);
 	iosync();
@@ -103,18 +130,49 @@ static void icp_opal_cause_ipi(int cpu,
 {
 	int hw_cpu = get_hard_smp_processor_id(cpu);
 
+	kvmppc_set_host_ipi(cpu, 1);
 	opal_int_set_mfrr(hw_cpu, IPI_PRIORITY);
 }
 
 static irqreturn_t icp_opal_ipi_action(int irq, void *dev_id)
 {
-	int hw_cpu = hard_smp_processor_id();
+	int cpu = smp_processor_id();
 
-	opal_int_set_mfrr(hw_cpu, 0xff);
+	kvmppc_set_host_ipi(cpu, 0);
+	opal_int_set_mfrr(get_hard_smp_processor_id(cpu), 0xff);
 
 	return smp_ipi_demux();
 }
 
+/*
+ * Called when an interrupt is received on an off-line CPU to
+ * clear the interrupt, so that the CPU can go back to nap mode.
+ */
+void icp_opal_flush_interrupt(void)
+{
+	unsigned int xirr;
+	unsigned int vec;
+
+	do {
+		xirr = icp_opal_get_xirr();
+		vec = xirr & 0x00ffffff;
+		if (vec == XICS_IRQ_SPURIOUS)
+			break;
+		if (vec == XICS_IPI) {
+			/* Clear pending IPI */
+			int cpu = smp_processor_id();
+			kvmppc_set_host_ipi(cpu, 0);
+			opal_int_set_mfrr(get_hard_smp_processor_id(cpu), 0xff);
+		} else {
+			pr_err("XICS: hw interrupt 0x%x to offline cpu, "
+			       "disabling\n", vec);
+			xics_mask_unknown_vec(vec);
+		}
+
+		/* EOI the interrupt */
+	} while (opal_int_eoi(xirr) > 0);
+}
+
 #endif /* CONFIG_SMP */
 
 static const struct icp_ops icp_opal_ops = {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/powerpc/sysdev/xics/xics-common.c linux-libre-4.9.52-gnu/arch/powerpc/sysdev/xics/xics-common.c
--- linux-libre-4.9-gnu/arch/powerpc/sysdev/xics/xics-common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/powerpc/sysdev/xics/xics-common.c	2017-09-27 08:40:05.000000000 -0400
@@ -20,6 +20,7 @@
 #include <linux/of.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/delay.h>
 
 #include <asm/prom.h>
 #include <asm/io.h>
@@ -198,9 +199,6 @@ void xics_migrate_irqs_away(void)
 	/* Remove ourselves from the global interrupt queue */
 	xics_set_cpu_giq(xics_default_distrib_server, 0);
 
-	/* Allow IPIs again... */
-	icp_ops->set_priority(DEFAULT_PRIORITY);
-
 	for_each_irq_desc(virq, desc) {
 		struct irq_chip *chip;
 		long server;
@@ -255,6 +253,19 @@ void xics_migrate_irqs_away(void)
 unlock:
 		raw_spin_unlock_irqrestore(&desc->lock, flags);
 	}
+
+	/* Allow "sufficient" time to drop any inflight IRQ's */
+	mdelay(5);
+
+	/*
+	 * Allow IPIs again. This is done at the very end, after migrating all
+	 * interrupts, the expectation is that we'll only get woken up by an IPI
+	 * interrupt beyond this point, but leave externals masked just to be
+	 * safe. If we're using icp-opal this may actually allow all
+	 * interrupts anyway, but that should be OK.
+	 */
+	icp_ops->set_priority(DEFAULT_PRIORITY);
+
 }
 #endif /* CONFIG_HOTPLUG_CPU */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/boot/compressed/misc.c linux-libre-4.9.52-gnu/arch/s390/boot/compressed/misc.c
--- linux-libre-4.9-gnu/arch/s390/boot/compressed/misc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/boot/compressed/misc.c	2017-09-27 08:40:05.000000000 -0400
@@ -141,31 +141,34 @@ static void check_ipl_parmblock(void *st
 
 unsigned long decompress_kernel(void)
 {
-	unsigned long output_addr;
-	unsigned char *output;
+	void *output, *kernel_end;
 
-	output_addr = ((unsigned long) &_end + HEAP_SIZE + 4095UL) & -4096UL;
-	check_ipl_parmblock((void *) 0, output_addr + SZ__bss_start);
-	memset(&_bss, 0, &_ebss - &_bss);
-	free_mem_ptr = (unsigned long)&_end;
-	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
-	output = (unsigned char *) output_addr;
+	output = (void *) ALIGN((unsigned long) &_end + HEAP_SIZE, PAGE_SIZE);
+	kernel_end = output + SZ__bss_start;
+	check_ipl_parmblock((void *) 0, (unsigned long) kernel_end);
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	/*
 	 * Move the initrd right behind the end of the decompressed
-	 * kernel image.
+	 * kernel image. This also prevents initrd corruption caused by
+	 * bss clearing since kernel_end will always be located behind the
+	 * current bss section..
 	 */
-	if (INITRD_START && INITRD_SIZE &&
-	    INITRD_START < (unsigned long) output + SZ__bss_start) {
-		check_ipl_parmblock(output + SZ__bss_start,
-				    INITRD_START + INITRD_SIZE);
-		memmove(output + SZ__bss_start,
-			(void *) INITRD_START, INITRD_SIZE);
-		INITRD_START = (unsigned long) output + SZ__bss_start;
+	if (INITRD_START && INITRD_SIZE && kernel_end > (void *) INITRD_START) {
+		check_ipl_parmblock(kernel_end, INITRD_SIZE);
+		memmove(kernel_end, (void *) INITRD_START, INITRD_SIZE);
+		INITRD_START = (unsigned long) kernel_end;
 	}
 #endif
 
+	/*
+	 * Clear bss section. free_mem_ptr and free_mem_end_ptr need to be
+	 * initialized afterwards since they reside in bss.
+	 */
+	memset(&_bss, 0, &_ebss - &_bss);
+	free_mem_ptr = (unsigned long) &_end;
+	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+
 	puts("Uncompressing Linux... ");
 	__decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
 	puts("Ok, booting the kernel.\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/crypto/prng.c linux-libre-4.9.52-gnu/arch/s390/crypto/prng.c
--- linux-libre-4.9-gnu/arch/s390/crypto/prng.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/crypto/prng.c	2017-09-27 08:40:05.000000000 -0400
@@ -507,8 +507,10 @@ static ssize_t prng_tdes_read(struct fil
 		prng_data->prngws.byte_counter += n;
 		prng_data->prngws.reseed_counter += n;
 
-		if (copy_to_user(ubuf, prng_data->buf, chunk))
-			return -EFAULT;
+		if (copy_to_user(ubuf, prng_data->buf, chunk)) {
+			ret = -EFAULT;
+			break;
+		}
 
 		nbytes -= chunk;
 		ret += chunk;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/ctl_reg.h linux-libre-4.9.52-gnu/arch/s390/include/asm/ctl_reg.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/ctl_reg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/ctl_reg.h	2017-09-27 08:40:05.000000000 -0400
@@ -15,7 +15,9 @@
 	BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
 	asm volatile(							\
 		"	lctlg	%1,%2,%0\n"				\
-		: : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high));\
+		:							\
+		: "Q" (*(addrtype *)(&array)), "i" (low), "i" (high)	\
+		: "memory");						\
 }
 
 #define __ctl_store(array, low, high) {					\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/elf.h linux-libre-4.9.52-gnu/arch/s390/include/asm/elf.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/elf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/elf.h	2017-09-27 08:40:05.000000000 -0400
@@ -158,14 +158,13 @@ extern unsigned int vdso_enabled;
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	4096
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk. 64-bit
-   tasks are aligned to 4GB. */
-#define ELF_ET_DYN_BASE (is_compat_task() ? \
-				(STACK_TOP / 3 * 2) : \
-				(STACK_TOP / 3 * 2) & ~((1UL << 32) - 1))
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is raised to 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE		(is_compat_task() ? 0x000400000UL : \
+						    0x100000000UL)
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports. */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/mmu_context.h linux-libre-4.9.52-gnu/arch/s390/include/asm/mmu_context.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/mmu_context.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/mmu_context.h	2017-09-27 08:40:05.000000000 -0400
@@ -15,6 +15,7 @@
 static inline int init_new_context(struct task_struct *tsk,
 				   struct mm_struct *mm)
 {
+	spin_lock_init(&mm->context.lock);
 	spin_lock_init(&mm->context.pgtable_lock);
 	INIT_LIST_HEAD(&mm->context.pgtable_list);
 	spin_lock_init(&mm->context.gmap_lock);
@@ -93,7 +94,6 @@ static inline void switch_mm(struct mm_s
 	if (prev == next)
 		return;
 	cpumask_set_cpu(cpu, &next->context.cpu_attach_mask);
-	cpumask_set_cpu(cpu, mm_cpumask(next));
 	/* Clear old ASCE by loading the kernel ASCE. */
 	__ctl_load(S390_lowcore.kernel_asce, 1, 1);
 	__ctl_load(S390_lowcore.kernel_asce, 7, 7);
@@ -111,9 +111,8 @@ static inline void finish_arch_post_lock
 		preempt_disable();
 		while (atomic_read(&mm->context.flush_count))
 			cpu_relax();
-
-		if (mm->context.flush_mm)
-			__tlb_flush_mm(mm);
+		cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm));
+		__tlb_flush_mm_lazy(mm);
 		preempt_enable();
 	}
 	set_fs(current->thread.mm_segment);
@@ -126,6 +125,7 @@ static inline void activate_mm(struct mm
                                struct mm_struct *next)
 {
 	switch_mm(prev, next, current);
+	cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
 	set_user_asce(next);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/mmu.h linux-libre-4.9.52-gnu/arch/s390/include/asm/mmu.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/mmu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/mmu.h	2017-09-27 08:40:05.000000000 -0400
@@ -5,6 +5,7 @@
 #include <linux/errno.h>
 
 typedef struct {
+	spinlock_t lock;
 	cpumask_t cpu_attach_mask;
 	atomic_t flush_count;
 	unsigned int flush_mm;
@@ -25,6 +26,7 @@ typedef struct {
 } mm_context_t;
 
 #define INIT_MM_CONTEXT(name)						   \
+	.context.lock =	__SPIN_LOCK_UNLOCKED(name.context.lock),	   \
 	.context.pgtable_lock =						   \
 			__SPIN_LOCK_UNLOCKED(name.context.pgtable_lock),   \
 	.context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list), \
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/pgtable.h linux-libre-4.9.52-gnu/arch/s390/include/asm/pgtable.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/pgtable.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/pgtable.h	2017-09-27 08:40:05.000000000 -0400
@@ -480,7 +480,7 @@ static inline int mm_alloc_pgste(struct
  * In the case that a guest uses storage keys
  * faults should no longer be backed by zero pages
  */
-#define mm_forbids_zeropage mm_use_skey
+#define mm_forbids_zeropage mm_has_pgste
 static inline int mm_use_skey(struct mm_struct *mm)
 {
 #ifdef CONFIG_PGSTE
@@ -1029,6 +1029,8 @@ int get_guest_storage_key(struct mm_stru
 static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep, pte_t entry)
 {
+	if (pte_present(entry))
+		pte_val(entry) &= ~_PAGE_UNUSED;
 	if (mm_has_pgste(mm))
 		ptep_set_pte_at(mm, addr, ptep, entry);
 	else
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/processor.h linux-libre-4.9.52-gnu/arch/s390/include/asm/processor.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/processor.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/processor.h	2017-09-27 08:40:05.000000000 -0400
@@ -89,7 +89,8 @@ extern void execve_tail(void);
  * User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
  */
 
-#define TASK_SIZE_OF(tsk)	((tsk)->mm->context.asce_limit)
+#define TASK_SIZE_OF(tsk)	((tsk)->mm ? \
+				 (tsk)->mm->context.asce_limit : TASK_MAX_SIZE)
 #define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_31BIT) ? \
 					(1UL << 30) : (1UL << 41))
 #define TASK_SIZE		TASK_SIZE_OF(current)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/syscall.h linux-libre-4.9.52-gnu/arch/s390/include/asm/syscall.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/syscall.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/syscall.h	2017-09-27 08:40:05.000000000 -0400
@@ -64,6 +64,12 @@ static inline void syscall_get_arguments
 {
 	unsigned long mask = -1UL;
 
+	/*
+	 * No arguments for this syscall, there's nothing to do.
+	 */
+	if (!n)
+		return;
+
 	BUG_ON(i + n > 6);
 #ifdef CONFIG_COMPAT
 	if (test_tsk_thread_flag(task, TIF_31BIT))
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/tlbflush.h linux-libre-4.9.52-gnu/arch/s390/include/asm/tlbflush.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/tlbflush.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/tlbflush.h	2017-09-27 08:40:05.000000000 -0400
@@ -43,23 +43,6 @@ static inline void __tlb_flush_global(vo
  * Flush TLB entries for a specific mm on all CPUs (in case gmap is used
  * this implicates multiple ASCEs!).
  */
-static inline void __tlb_flush_full(struct mm_struct *mm)
-{
-	preempt_disable();
-	atomic_inc(&mm->context.flush_count);
-	if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) {
-		/* Local TLB flush */
-		__tlb_flush_local();
-	} else {
-		/* Global TLB flush */
-		__tlb_flush_global();
-		/* Reset TLB flush mask */
-		cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask);
-	}
-	atomic_dec(&mm->context.flush_count);
-	preempt_enable();
-}
-
 static inline void __tlb_flush_mm(struct mm_struct *mm)
 {
 	unsigned long gmap_asce;
@@ -71,16 +54,18 @@ static inline void __tlb_flush_mm(struct
 	 */
 	preempt_disable();
 	atomic_inc(&mm->context.flush_count);
+	/* Reset TLB flush mask */
+	cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask);
+	barrier();
 	gmap_asce = READ_ONCE(mm->context.gmap_asce);
 	if (MACHINE_HAS_IDTE && gmap_asce != -1UL) {
 		if (gmap_asce)
 			__tlb_flush_idte(gmap_asce);
 		__tlb_flush_idte(mm->context.asce);
 	} else {
-		__tlb_flush_full(mm);
+		/* Global TLB flush */
+		__tlb_flush_global();
 	}
-	/* Reset TLB flush mask */
-	cpumask_copy(mm_cpumask(mm), &mm->context.cpu_attach_mask);
 	atomic_dec(&mm->context.flush_count);
 	preempt_enable();
 }
@@ -94,7 +79,6 @@ static inline void __tlb_flush_kernel(vo
 }
 #else
 #define __tlb_flush_global()	__tlb_flush_local()
-#define __tlb_flush_full(mm)	__tlb_flush_local()
 
 /*
  * Flush TLB entries for a specific ASCE on all CPUs.
@@ -112,10 +96,12 @@ static inline void __tlb_flush_kernel(vo
 
 static inline void __tlb_flush_mm_lazy(struct mm_struct * mm)
 {
+	spin_lock(&mm->context.lock);
 	if (mm->context.flush_mm) {
-		__tlb_flush_mm(mm);
 		mm->context.flush_mm = 0;
+		__tlb_flush_mm(mm);
 	}
+	spin_unlock(&mm->context.lock);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/include/asm/uaccess.h linux-libre-4.9.52-gnu/arch/s390/include/asm/uaccess.h
--- linux-libre-4.9-gnu/arch/s390/include/asm/uaccess.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/include/asm/uaccess.h	2017-09-27 08:40:05.000000000 -0400
@@ -144,7 +144,7 @@ unsigned long __must_check __copy_to_use
 		"	jg	2b\n"				\
 		".popsection\n"					\
 		EX_TABLE(0b,3b) EX_TABLE(1b,3b)			\
-		: "=d" (__rc), "=Q" (*(to))			\
+		: "=d" (__rc), "+Q" (*(to))			\
 		: "d" (size), "Q" (*(from)),			\
 		  "d" (__reg0), "K" (-EFAULT)			\
 		: "cc");					\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kernel/crash_dump.c linux-libre-4.9.52-gnu/arch/s390/kernel/crash_dump.c
--- linux-libre-4.9-gnu/arch/s390/kernel/crash_dump.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kernel/crash_dump.c	2017-09-27 08:40:05.000000000 -0400
@@ -329,7 +329,11 @@ static void *nt_init_name(void *buf, Elf
 
 static inline void *nt_init(void *buf, Elf64_Word type, void *desc, int d_len)
 {
-	return nt_init_name(buf, type, desc, d_len, KEXEC_CORE_NOTE_NAME);
+	const char *note_name = "LINUX";
+
+	if (type == NT_PRPSINFO || type == NT_PRSTATUS || type == NT_PRFPREG)
+		note_name = KEXEC_CORE_NOTE_NAME;
+	return nt_init_name(buf, type, desc, d_len, note_name);
 }
 
 /*
@@ -423,6 +427,20 @@ static void *nt_vmcoreinfo(void *ptr)
 }
 
 /*
+ * Initialize final note (needed for /proc/vmcore code)
+ */
+static void *nt_final(void *ptr)
+{
+	Elf64_Nhdr *note;
+
+	note = (Elf64_Nhdr *) ptr;
+	note->n_namesz = 0;
+	note->n_descsz = 0;
+	note->n_type = 0;
+	return PTR_ADD(ptr, sizeof(Elf64_Nhdr));
+}
+
+/*
  * Initialize ELF header (new kernel)
  */
 static void *ehdr_init(Elf64_Ehdr *ehdr, int mem_chunk_cnt)
@@ -509,6 +527,7 @@ static void *notes_init(Elf64_Phdr *phdr
 		if (sa->prefix != 0)
 			ptr = fill_cpu_elf_notes(ptr, cpu++, sa);
 	ptr = nt_vmcoreinfo(ptr);
+	ptr = nt_final(ptr);
 	memset(phdr, 0, sizeof(*phdr));
 	phdr->p_type = PT_NOTE;
 	phdr->p_offset = notes_offset;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kernel/entry.S linux-libre-4.9.52-gnu/arch/s390/kernel/entry.S
--- linux-libre-4.9-gnu/arch/s390/kernel/entry.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kernel/entry.S	2017-09-27 08:40:05.000000000 -0400
@@ -240,12 +240,17 @@ ENTRY(sie64a)
 	lctlg	%c1,%c1,__LC_USER_ASCE		# load primary asce
 .Lsie_done:
 # some program checks are suppressing. C code (e.g. do_protection_exception)
-# will rewind the PSW by the ILC, which is 4 bytes in case of SIE. Other
-# instructions between sie64a and .Lsie_done should not cause program
-# interrupts. So lets use a nop (47 00 00 00) as a landing pad.
+# will rewind the PSW by the ILC, which is often 4 bytes in case of SIE. There
+# are some corner cases (e.g. runtime instrumentation) where ILC is unpredictable.
+# Other instructions between sie64a and .Lsie_done should not cause program
+# interrupts. So lets use 3 nops as a landing pad for all possible rewinds.
 # See also .Lcleanup_sie
-.Lrewind_pad:
-	nop	0
+.Lrewind_pad6:
+	nopr	7
+.Lrewind_pad4:
+	nopr	7
+.Lrewind_pad2:
+	nopr	7
 	.globl sie_exit
 sie_exit:
 	lg	%r14,__SF_EMPTY+8(%r15)		# load guest register save area
@@ -258,7 +263,9 @@ sie_exit:
 	stg	%r14,__SF_EMPTY+16(%r15)	# set exit reason code
 	j	sie_exit
 
-	EX_TABLE(.Lrewind_pad,.Lsie_fault)
+	EX_TABLE(.Lrewind_pad6,.Lsie_fault)
+	EX_TABLE(.Lrewind_pad4,.Lsie_fault)
+	EX_TABLE(.Lrewind_pad2,.Lsie_fault)
 	EX_TABLE(sie_exit,.Lsie_fault)
 EXPORT_SYMBOL(sie64a)
 EXPORT_SYMBOL(sie_exit)
@@ -321,6 +328,7 @@ ENTRY(system_call)
 	lg	%r14,__LC_VDSO_PER_CPU
 	lmg	%r0,%r10,__PT_R0(%r11)
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lsysc_exit_timer:
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 	lmg	%r11,%r15,__PT_R11(%r11)
@@ -606,6 +614,7 @@ ENTRY(io_int_handler)
 	lg	%r14,__LC_VDSO_PER_CPU
 	lmg	%r0,%r10,__PT_R0(%r11)
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+.Lio_exit_timer:
 	stpt	__LC_EXIT_TIMER
 	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
 	lmg	%r11,%r15,__PT_R11(%r11)
@@ -1135,15 +1144,23 @@ cleanup_critical:
 	br	%r14
 
 .Lcleanup_sysc_restore:
+	# check if stpt has been executed
 	clg	%r9,BASED(.Lcleanup_sysc_restore_insn)
+	jh	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
+	cghi	%r11,__LC_SAVE_AREA_ASYNC
 	je	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	clg	%r9,BASED(.Lcleanup_sysc_restore_insn+8)
+	je	1f
 	lg	%r9,24(%r11)		# get saved pointer to pt_regs
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
 	mvc	0(64,%r11),__PT_R8(%r9)
 	lmg	%r0,%r7,__PT_R0(%r9)
-0:	lmg	%r8,%r9,__LC_RETURN_PSW
+1:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 .Lcleanup_sysc_restore_insn:
+	.quad	.Lsysc_exit_timer
 	.quad	.Lsysc_done - 4
 
 .Lcleanup_io_tif:
@@ -1151,15 +1168,20 @@ cleanup_critical:
 	br	%r14
 
 .Lcleanup_io_restore:
+	# check if stpt has been executed
 	clg	%r9,BASED(.Lcleanup_io_restore_insn)
-	je	0f
+	jh	0f
+	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	clg	%r9,BASED(.Lcleanup_io_restore_insn+8)
+	je	1f
 	lg	%r9,24(%r11)		# get saved r11 pointer to pt_regs
 	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
 	mvc	0(64,%r11),__PT_R8(%r9)
 	lmg	%r0,%r7,__PT_R0(%r9)
-0:	lmg	%r8,%r9,__LC_RETURN_PSW
+1:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 .Lcleanup_io_restore_insn:
+	.quad	.Lio_exit_timer
 	.quad	.Lio_done - 4
 
 .Lcleanup_idle:
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/s390/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/s390/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -963,6 +963,11 @@ static int s390_fpregs_set(struct task_s
 	if (target == current)
 		save_fpu_regs();
 
+	if (MACHINE_HAS_VX)
+		convert_vx_to_fp(fprs, target->thread.fpu.vxrs);
+	else
+		memcpy(&fprs, target->thread.fpu.fprs, sizeof(fprs));
+
 	/* If setting FPC, must validate it first. */
 	if (count > 0 && pos < offsetof(s390_fp_regs, fprs)) {
 		u32 ufpc[2] = { target->thread.fpu.fpc, 0 };
@@ -1067,6 +1072,9 @@ static int s390_vxrs_low_set(struct task
 	if (target == current)
 		save_fpu_regs();
 
+	for (i = 0; i < __NUM_VXRS_LOW; i++)
+		vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);
+
 	rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, vxrs, 0, -1);
 	if (rc == 0)
 		for (i = 0; i < __NUM_VXRS_LOW; i++)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kernel/setup.c linux-libre-4.9.52-gnu/arch/s390/kernel/setup.c
--- linux-libre-4.9-gnu/arch/s390/kernel/setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kernel/setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -445,7 +445,7 @@ static void __init setup_resources(void)
 	 * part of the System RAM resource.
 	 */
 	if (crashk_res.end) {
-		memblock_add(crashk_res.start, resource_size(&crashk_res));
+		memblock_add_node(crashk_res.start, resource_size(&crashk_res), 0);
 		memblock_reserve(crashk_res.start, resource_size(&crashk_res));
 		insert_resource(&iomem_resource, &crashk_res);
 	}
@@ -819,10 +819,10 @@ static void __init setup_randomness(void
 {
 	struct sysinfo_3_2_2 *vmms;
 
-	vmms = (struct sysinfo_3_2_2 *) alloc_page(GFP_KERNEL);
-	if (vmms && stsi(vmms, 3, 2, 2) == 0 && vmms->count)
-		add_device_randomness(&vmms, vmms->count);
-	free_page((unsigned long) vmms);
+	vmms = (struct sysinfo_3_2_2 *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+	if (stsi(vmms, 3, 2, 2) == 0 && vmms->count)
+		add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count);
+	memblock_free((unsigned long) vmms, PAGE_SIZE);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kernel/topology.c linux-libre-4.9.52-gnu/arch/s390/kernel/topology.c
--- linux-libre-4.9-gnu/arch/s390/kernel/topology.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kernel/topology.c	2017-09-27 08:40:05.000000000 -0400
@@ -448,6 +448,7 @@ static int __init s390_topology_init(voi
 	struct sysinfo_15_1_x *info;
 	int i;
 
+	set_sched_topology(s390_topology);
 	if (!MACHINE_HAS_TOPOLOGY)
 		return 0;
 	tl_info = (struct sysinfo_15_1_x *)__get_free_page(GFP_KERNEL);
@@ -460,7 +461,6 @@ static int __init s390_topology_init(voi
 	alloc_masks(info, &socket_info, 1);
 	alloc_masks(info, &book_info, 2);
 	alloc_masks(info, &drawer_info, 3);
-	set_sched_topology(s390_topology);
 	return 0;
 }
 early_initcall(s390_topology_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kvm/gaccess.c linux-libre-4.9.52-gnu/arch/s390/kvm/gaccess.c
--- linux-libre-4.9-gnu/arch/s390/kvm/gaccess.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kvm/gaccess.c	2017-09-27 08:40:05.000000000 -0400
@@ -972,11 +972,12 @@ static int kvm_s390_shadow_tables(struct
 	ptr = asce.origin * 4096;
 	if (asce.r) {
 		*fake = 1;
+		ptr = 0;
 		asce.dt = ASCE_TYPE_REGION1;
 	}
 	switch (asce.dt) {
 	case ASCE_TYPE_REGION1:
-		if (vaddr.rfx01 > asce.tl && !asce.r)
+		if (vaddr.rfx01 > asce.tl && !*fake)
 			return PGM_REGION_FIRST_TRANS;
 		break;
 	case ASCE_TYPE_REGION2:
@@ -1004,8 +1005,7 @@ static int kvm_s390_shadow_tables(struct
 		union region1_table_entry rfte;
 
 		if (*fake) {
-			/* offset in 16EB guest memory block */
-			ptr = ptr + ((unsigned long) vaddr.rsx << 53UL);
+			ptr += (unsigned long) vaddr.rfx << 53;
 			rfte.val = ptr;
 			goto shadow_r2t;
 		}
@@ -1031,8 +1031,7 @@ shadow_r2t:
 		union region2_table_entry rste;
 
 		if (*fake) {
-			/* offset in 8PB guest memory block */
-			ptr = ptr + ((unsigned long) vaddr.rtx << 42UL);
+			ptr += (unsigned long) vaddr.rsx << 42;
 			rste.val = ptr;
 			goto shadow_r3t;
 		}
@@ -1059,8 +1058,7 @@ shadow_r3t:
 		union region3_table_entry rtte;
 
 		if (*fake) {
-			/* offset in 4TB guest memory block */
-			ptr = ptr + ((unsigned long) vaddr.sx << 31UL);
+			ptr += (unsigned long) vaddr.rtx << 31;
 			rtte.val = ptr;
 			goto shadow_sgt;
 		}
@@ -1096,8 +1094,7 @@ shadow_sgt:
 		union segment_table_entry ste;
 
 		if (*fake) {
-			/* offset in 2G guest memory block */
-			ptr = ptr + ((unsigned long) vaddr.sx << 20UL);
+			ptr += (unsigned long) vaddr.sx << 20;
 			ste.val = ptr;
 			goto shadow_pgt;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kvm/kvm-s390.c linux-libre-4.9.52-gnu/arch/s390/kvm/kvm-s390.c
--- linux-libre-4.9-gnu/arch/s390/kvm/kvm-s390.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kvm/kvm-s390.c	2017-09-27 08:40:05.000000000 -0400
@@ -442,6 +442,9 @@ int kvm_vm_ioctl_get_dirty_log(struct kv
 	struct kvm_memory_slot *memslot;
 	int is_dirty = 0;
 
+	if (kvm_is_ucontrol(kvm))
+		return -EINVAL;
+
 	mutex_lock(&kvm->slots_lock);
 
 	r = -EINVAL;
@@ -916,7 +919,7 @@ static int kvm_s390_get_machine(struct k
 	memcpy(&mach->fac_mask, kvm->arch.model.fac_mask,
 	       S390_ARCH_FAC_LIST_SIZE_BYTE);
 	memcpy((unsigned long *)&mach->fac_list, S390_lowcore.stfle_fac_list,
-	       S390_ARCH_FAC_LIST_SIZE_BYTE);
+	       sizeof(S390_lowcore.stfle_fac_list));
 	if (copy_to_user((void __user *)attr->addr, mach, sizeof(*mach)))
 		ret = -EFAULT;
 	kfree(mach);
@@ -1437,7 +1440,7 @@ int kvm_arch_init_vm(struct kvm *kvm, un
 
 	/* Populate the facility mask initially. */
 	memcpy(kvm->arch.model.fac_mask, S390_lowcore.stfle_fac_list,
-	       S390_ARCH_FAC_LIST_SIZE_BYTE);
+	       sizeof(S390_lowcore.stfle_fac_list));
 	for (i = 0; i < S390_ARCH_FAC_LIST_SIZE_U64; i++) {
 		if (i < kvm_s390_fac_list_mask_size())
 			kvm->arch.model.fac_mask[i] &= kvm_s390_fac_list_mask[i];
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/kvm/sthyi.c linux-libre-4.9.52-gnu/arch/s390/kvm/sthyi.c
--- linux-libre-4.9-gnu/arch/s390/kvm/sthyi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/kvm/sthyi.c	2017-09-27 08:40:05.000000000 -0400
@@ -394,7 +394,7 @@ static int sthyi(u64 vaddr)
 		"srl     %[cc],28\n"
 		: [cc] "=d" (cc)
 		: [code] "d" (code), [addr] "a" (addr)
-		: "memory", "cc");
+		: "3", "memory", "cc");
 	return cc;
 }
 
@@ -422,7 +422,7 @@ int handle_sthyi(struct kvm_vcpu *vcpu)
 	VCPU_EVENT(vcpu, 3, "STHYI: fc: %llu addr: 0x%016llx", code, addr);
 	trace_kvm_s390_handle_sthyi(vcpu, code, addr);
 
-	if (reg1 == reg2 || reg1 & 1 || reg2 & 1 || addr & ~PAGE_MASK)
+	if (reg1 == reg2 || reg1 & 1 || reg2 & 1)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
 
 	if (code & 0xffff) {
@@ -430,6 +430,9 @@ int handle_sthyi(struct kvm_vcpu *vcpu)
 		goto out;
 	}
 
+	if (addr & ~PAGE_MASK)
+		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
 	/*
 	 * If the page has not yet been faulted in, we want to do that
 	 * now and not after all the expensive calculations.
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/mm/gmap.c linux-libre-4.9.52-gnu/arch/s390/mm/gmap.c
--- linux-libre-4.9-gnu/arch/s390/mm/gmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/mm/gmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -2125,6 +2125,37 @@ static inline void thp_split_mm(struct m
 }
 
 /*
+ * Remove all empty zero pages from the mapping for lazy refaulting
+ * - This must be called after mm->context.has_pgste is set, to avoid
+ *   future creation of zero pages
+ * - This must be called after THP was enabled
+ */
+static int __zap_zero_pages(pmd_t *pmd, unsigned long start,
+			   unsigned long end, struct mm_walk *walk)
+{
+	unsigned long addr;
+
+	for (addr = start; addr != end; addr += PAGE_SIZE) {
+		pte_t *ptep;
+		spinlock_t *ptl;
+
+		ptep = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
+		if (is_zero_pfn(pte_pfn(*ptep)))
+			ptep_xchg_direct(walk->mm, addr, ptep, __pte(_PAGE_INVALID));
+		pte_unmap_unlock(ptep, ptl);
+	}
+	return 0;
+}
+
+static inline void zap_zero_pages(struct mm_struct *mm)
+{
+	struct mm_walk walk = { .pmd_entry = __zap_zero_pages };
+
+	walk.mm = mm;
+	walk_page_range(0, TASK_SIZE, &walk);
+}
+
+/*
  * switch on pgstes for its userspace process (for kvm)
  */
 int s390_enable_sie(void)
@@ -2141,6 +2172,7 @@ int s390_enable_sie(void)
 	mm->context.has_pgste = 1;
 	/* split thp mappings and disable thp for future mappings */
 	thp_split_mm(mm);
+	zap_zero_pages(mm);
 	up_write(&mm->mmap_sem);
 	return 0;
 }
@@ -2153,13 +2185,6 @@ EXPORT_SYMBOL_GPL(s390_enable_sie);
 static int __s390_enable_skey(pte_t *pte, unsigned long addr,
 			      unsigned long next, struct mm_walk *walk)
 {
-	/*
-	 * Remove all zero page mappings,
-	 * after establishing a policy to forbid zero page mappings
-	 * following faults for that page will get fresh anonymous pages
-	 */
-	if (is_zero_pfn(pte_pfn(*pte)))
-		ptep_xchg_direct(walk->mm, addr, pte, __pte(_PAGE_INVALID));
 	/* Clear storage key */
 	ptep_zap_key(walk->mm, addr, pte);
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/mm/mmap.c linux-libre-4.9.52-gnu/arch/s390/mm/mmap.c
--- linux-libre-4.9-gnu/arch/s390/mm/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/mm/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -98,7 +98,7 @@ arch_get_unmapped_area(struct file *filp
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -136,7 +136,7 @@ arch_get_unmapped_area_topdown(struct fi
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/mm/pgtable.c linux-libre-4.9.52-gnu/arch/s390/mm/pgtable.c
--- linux-libre-4.9-gnu/arch/s390/mm/pgtable.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/mm/pgtable.c	2017-09-27 08:40:05.000000000 -0400
@@ -202,7 +202,7 @@ static inline pgste_t ptep_xchg_start(st
 	return pgste;
 }
 
-static inline void ptep_xchg_commit(struct mm_struct *mm,
+static inline pte_t ptep_xchg_commit(struct mm_struct *mm,
 				    unsigned long addr, pte_t *ptep,
 				    pgste_t pgste, pte_t old, pte_t new)
 {
@@ -220,6 +220,7 @@ static inline void ptep_xchg_commit(stru
 	} else {
 		*ptep = new;
 	}
+	return old;
 }
 
 pte_t ptep_xchg_direct(struct mm_struct *mm, unsigned long addr,
@@ -231,7 +232,7 @@ pte_t ptep_xchg_direct(struct mm_struct
 	preempt_disable();
 	pgste = ptep_xchg_start(mm, addr, ptep);
 	old = ptep_flush_direct(mm, addr, ptep);
-	ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
+	old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
 	preempt_enable();
 	return old;
 }
@@ -246,7 +247,7 @@ pte_t ptep_xchg_lazy(struct mm_struct *m
 	preempt_disable();
 	pgste = ptep_xchg_start(mm, addr, ptep);
 	old = ptep_flush_lazy(mm, addr, ptep);
-	ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
+	old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
 	preempt_enable();
 	return old;
 }
@@ -605,12 +606,29 @@ void ptep_zap_key(struct mm_struct *mm,
 bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long addr)
 {
 	spinlock_t *ptl;
+	pgd_t *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
 	pgste_t pgste;
 	pte_t *ptep;
 	pte_t pte;
 	bool dirty;
 
-	ptep = get_locked_pte(mm, addr, &ptl);
+	pgd = pgd_offset(mm, addr);
+	pud = pud_alloc(mm, pgd, addr);
+	if (!pud)
+		return false;
+	pmd = pmd_alloc(mm, pud, addr);
+	if (!pmd)
+		return false;
+	/* We can't run guests backed by huge pages, but userspace can
+	 * still set them up and then try to migrate them without any
+	 * migration support.
+	 */
+	if (pmd_large(*pmd))
+		return true;
+
+	ptep = pte_alloc_map_lock(mm, pmd, addr, &ptl);
 	if (unlikely(!ptep))
 		return false;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/net/bpf_jit_comp.c linux-libre-4.9.52-gnu/arch/s390/net/bpf_jit_comp.c
--- linux-libre-4.9-gnu/arch/s390/net/bpf_jit_comp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/net/bpf_jit_comp.c	2017-09-27 08:40:05.000000000 -0400
@@ -1252,7 +1252,8 @@ static int bpf_jit_prog(struct bpf_jit *
 		insn_count = bpf_jit_insn(jit, fp, i);
 		if (insn_count < 0)
 			return -1;
-		jit->addrs[i + 1] = jit->prg; /* Next instruction address */
+		/* Next instruction address */
+		jit->addrs[i + insn_count] = jit->prg;
 	}
 	bpf_jit_epilogue(jit);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/s390/pci/pci_dma.c linux-libre-4.9.52-gnu/arch/s390/pci/pci_dma.c
--- linux-libre-4.9-gnu/arch/s390/pci/pci_dma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/s390/pci/pci_dma.c	2017-09-27 08:40:05.000000000 -0400
@@ -419,6 +419,7 @@ static int __s390_dma_map_sg(struct devi
 			     size_t size, dma_addr_t *handle,
 			     enum dma_data_direction dir)
 {
+	unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
 	dma_addr_t dma_addr_base, dma_addr;
 	int flags = ZPCI_PTE_VALID;
@@ -426,8 +427,7 @@ static int __s390_dma_map_sg(struct devi
 	unsigned long pa = 0;
 	int ret;
 
-	size = PAGE_ALIGN(size);
-	dma_addr_base = dma_alloc_address(dev, size >> PAGE_SHIFT);
+	dma_addr_base = dma_alloc_address(dev, nr_pages);
 	if (dma_addr_base == DMA_ERROR_CODE)
 		return -ENOMEM;
 
@@ -436,26 +436,27 @@ static int __s390_dma_map_sg(struct devi
 		flags |= ZPCI_TABLE_PROTECTED;
 
 	for (s = sg; dma_addr < dma_addr_base + size; s = sg_next(s)) {
-		pa = page_to_phys(sg_page(s)) + s->offset;
-		ret = __dma_update_trans(zdev, pa, dma_addr, s->length, flags);
+		pa = page_to_phys(sg_page(s));
+		ret = __dma_update_trans(zdev, pa, dma_addr,
+					 s->offset + s->length, flags);
 		if (ret)
 			goto unmap;
 
-		dma_addr += s->length;
+		dma_addr += s->offset + s->length;
 	}
 	ret = __dma_purge_tlb(zdev, dma_addr_base, size, flags);
 	if (ret)
 		goto unmap;
 
 	*handle = dma_addr_base;
-	atomic64_add(size >> PAGE_SHIFT, &zdev->mapped_pages);
+	atomic64_add(nr_pages, &zdev->mapped_pages);
 
 	return ret;
 
 unmap:
 	dma_update_trans(zdev, 0, dma_addr_base, dma_addr - dma_addr_base,
 			 ZPCI_PTE_INVALID);
-	dma_free_address(dev, dma_addr_base, size >> PAGE_SHIFT);
+	dma_free_address(dev, dma_addr_base, nr_pages);
 	zpci_err("map error:\n");
 	zpci_err_dma(ret, pa);
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sh/mm/mmap.c linux-libre-4.9.52-gnu/arch/sh/mm/mmap.c
--- linux-libre-4.9-gnu/arch/sh/mm/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sh/mm/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -63,7 +63,7 @@ unsigned long arch_get_unmapped_area(str
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -113,7 +113,7 @@ arch_get_unmapped_area_topdown(struct fi
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/mmu_64.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/mmu_64.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/mmu_64.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/mmu_64.h	2017-09-27 08:40:05.000000000 -0400
@@ -52,7 +52,7 @@
 #define CTX_NR_MASK		TAG_CONTEXT_BITS
 #define CTX_HW_MASK		(CTX_NR_MASK | CTX_PGSZ_MASK)
 
-#define CTX_FIRST_VERSION	((_AC(1,UL) << CTX_VERSION_SHIFT) + _AC(1,UL))
+#define CTX_FIRST_VERSION	BIT(CTX_VERSION_SHIFT)
 #define CTX_VALID(__ctx)	\
 	 (!(((__ctx.sparc64_ctx_val) ^ tlb_context_cache) & CTX_VERSION_MASK))
 #define CTX_HWBITS(__ctx)	((__ctx.sparc64_ctx_val) & CTX_HW_MASK)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/mmu_context_64.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/mmu_context_64.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/mmu_context_64.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/mmu_context_64.h	2017-09-27 08:40:05.000000000 -0400
@@ -17,22 +17,19 @@ extern spinlock_t ctx_alloc_lock;
 extern unsigned long tlb_context_cache;
 extern unsigned long mmu_context_bmap[];
 
+DECLARE_PER_CPU(struct mm_struct *, per_cpu_secondary_mm);
 void get_new_mmu_context(struct mm_struct *mm);
-#ifdef CONFIG_SMP
-void smp_new_mmu_context_version(void);
-#else
-#define smp_new_mmu_context_version() do { } while (0)
-#endif
-
 int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
 void destroy_context(struct mm_struct *mm);
 
 void __tsb_context_switch(unsigned long pgd_pa,
 			  struct tsb_config *tsb_base,
 			  struct tsb_config *tsb_huge,
-			  unsigned long tsb_descr_pa);
+			  unsigned long tsb_descr_pa,
+			  unsigned long secondary_ctx);
 
-static inline void tsb_context_switch(struct mm_struct *mm)
+static inline void tsb_context_switch_ctx(struct mm_struct *mm,
+					  unsigned long ctx)
 {
 	__tsb_context_switch(__pa(mm->pgd),
 			     &mm->context.tsb_block[0],
@@ -43,9 +40,12 @@ static inline void tsb_context_switch(st
 #else
 			     NULL
 #endif
-			     , __pa(&mm->context.tsb_descr[0]));
+			     , __pa(&mm->context.tsb_descr[0]),
+			     ctx);
 }
 
+#define tsb_context_switch(X) tsb_context_switch_ctx(X, 0)
+
 void tsb_grow(struct mm_struct *mm,
 	      unsigned long tsb_index,
 	      unsigned long mm_rss);
@@ -74,8 +74,9 @@ void __flush_tlb_mm(unsigned long, unsig
 static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, struct task_struct *tsk)
 {
 	unsigned long ctx_valid, flags;
-	int cpu;
+	int cpu = smp_processor_id();
 
+	per_cpu(per_cpu_secondary_mm, cpu) = mm;
 	if (unlikely(mm == &init_mm))
 		return;
 
@@ -114,14 +115,12 @@ static inline void switch_mm(struct mm_s
 	 * cpu0 to update it's TSB because at that point the cpu_vm_mask
 	 * only had cpu1 set in it.
 	 */
-	load_secondary_context(mm);
-	tsb_context_switch(mm);
+	tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
 
 	/* Any time a processor runs a context on an address space
 	 * for the first time, we must flush that context out of the
 	 * local TLB.
 	 */
-	cpu = smp_processor_id();
 	if (!ctx_valid || !cpumask_test_cpu(cpu, mm_cpumask(mm))) {
 		cpumask_set_cpu(cpu, mm_cpumask(mm));
 		__flush_tlb_mm(CTX_HWBITS(mm->context),
@@ -131,26 +130,7 @@ static inline void switch_mm(struct mm_s
 }
 
 #define deactivate_mm(tsk,mm)	do { } while (0)
-
-/* Activate a new MM instance for the current task. */
-static inline void activate_mm(struct mm_struct *active_mm, struct mm_struct *mm)
-{
-	unsigned long flags;
-	int cpu;
-
-	spin_lock_irqsave(&mm->context.lock, flags);
-	if (!CTX_VALID(mm->context))
-		get_new_mmu_context(mm);
-	cpu = smp_processor_id();
-	if (!cpumask_test_cpu(cpu, mm_cpumask(mm)))
-		cpumask_set_cpu(cpu, mm_cpumask(mm));
-
-	load_secondary_context(mm);
-	__flush_tlb_mm(CTX_HWBITS(mm->context), SECONDARY_CONTEXT);
-	tsb_context_switch(mm);
-	spin_unlock_irqrestore(&mm->context.lock, flags);
-}
-
+#define activate_mm(active_mm, mm) switch_mm(active_mm, mm, NULL)
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(__SPARC64_MMU_CONTEXT_H) */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/pgtable_32.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/pgtable_32.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/pgtable_32.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/pgtable_32.h	2017-09-27 08:40:05.000000000 -0400
@@ -91,9 +91,9 @@ extern unsigned long pfn_base;
  * ZERO_PAGE is a global shared page that is always zero: used
  * for zero-mapped memory areas etc..
  */
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
-#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 
 /*
  * In general all page table modifications should use the V8 atomic
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/pgtable_64.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/pgtable_64.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/pgtable_64.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/pgtable_64.h	2017-09-27 08:40:05.000000000 -0400
@@ -673,26 +673,27 @@ static inline unsigned long pmd_pfn(pmd_
 	return pte_pfn(pte);
 }
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static inline unsigned long pmd_dirty(pmd_t pmd)
+#define __HAVE_ARCH_PMD_WRITE
+static inline unsigned long pmd_write(pmd_t pmd)
 {
 	pte_t pte = __pte(pmd_val(pmd));
 
-	return pte_dirty(pte);
+	return pte_write(pte);
 }
 
-static inline unsigned long pmd_young(pmd_t pmd)
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline unsigned long pmd_dirty(pmd_t pmd)
 {
 	pte_t pte = __pte(pmd_val(pmd));
 
-	return pte_young(pte);
+	return pte_dirty(pte);
 }
 
-static inline unsigned long pmd_write(pmd_t pmd)
+static inline unsigned long pmd_young(pmd_t pmd)
 {
 	pte_t pte = __pte(pmd_val(pmd));
 
-	return pte_write(pte);
+	return pte_young(pte);
 }
 
 static inline unsigned long pmd_trans_huge(pmd_t pmd)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/pil.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/pil.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/pil.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/pil.h	2017-09-27 08:40:05.000000000 -0400
@@ -20,7 +20,6 @@
 #define PIL_SMP_CALL_FUNC	1
 #define PIL_SMP_RECEIVE_SIGNAL	2
 #define PIL_SMP_CAPTURE		3
-#define PIL_SMP_CTX_NEW_VERSION	4
 #define PIL_DEVICE_IRQ		5
 #define PIL_SMP_CALL_FUNC_SNGL	6
 #define PIL_DEFERRED_PCR_WORK	7
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/setup.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/setup.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/setup.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/setup.h	2017-09-27 08:40:05.000000000 -0400
@@ -16,7 +16,7 @@ extern char reboot_command[];
  */
 extern unsigned char boot_cpu_id;
 
-extern unsigned long empty_zero_page;
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 
 extern int serial_console;
 static inline int con_is_present(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/trap_block.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/trap_block.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/trap_block.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/trap_block.h	2017-09-27 08:40:05.000000000 -0400
@@ -54,6 +54,7 @@ extern struct trap_per_cpu trap_block[NR
 void init_cur_cpu_trap(struct thread_info *);
 void setup_tba(void);
 extern int ncpus_probed;
+extern u64 cpu_mondo_counter[NR_CPUS];
 
 unsigned long real_hard_smp_processor_id(void);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/include/asm/vio.h linux-libre-4.9.52-gnu/arch/sparc/include/asm/vio.h
--- linux-libre-4.9-gnu/arch/sparc/include/asm/vio.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/include/asm/vio.h	2017-09-27 08:40:05.000000000 -0400
@@ -327,6 +327,7 @@ struct vio_dev {
 	int			compat_len;
 
 	u64			dev_no;
+	u64			id;
 
 	unsigned long		channel_id;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/Kconfig linux-libre-4.9.52-gnu/arch/sparc/Kconfig
--- linux-libre-4.9-gnu/arch/sparc/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -187,9 +187,9 @@ config NR_CPUS
 	int "Maximum number of CPUs"
 	depends on SMP
 	range 2 32 if SPARC32
-	range 2 1024 if SPARC64
+	range 2 4096 if SPARC64
 	default 32 if SPARC32
-	default 64 if SPARC64
+	default 4096 if SPARC64
 
 source kernel/Kconfig.hz
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/ftrace.c linux-libre-4.9.52-gnu/arch/sparc/kernel/ftrace.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/ftrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/ftrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,17 +130,16 @@ unsigned long prepare_ftrace_return(unsi
 	if (unlikely(atomic_read(&current->tracing_graph_pause)))
 		return parent + 8UL;
 
-	if (ftrace_push_return_trace(parent, self_addr, &trace.depth,
-				     frame_pointer, NULL) == -EBUSY)
-		return parent + 8UL;
-
 	trace.func = self_addr;
+	trace.depth = current->curr_ret_stack + 1;
 
 	/* Only trace if the calling function expects to */
-	if (!ftrace_graph_entry(&trace)) {
-		current->curr_ret_stack--;
+	if (!ftrace_graph_entry(&trace))
+		return parent + 8UL;
+
+	if (ftrace_push_return_trace(parent, self_addr, &trace.depth,
+				     frame_pointer, NULL) == -EBUSY)
 		return parent + 8UL;
-	}
 
 	return return_hooker;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/head_64.S linux-libre-4.9.52-gnu/arch/sparc/kernel/head_64.S
--- linux-libre-4.9-gnu/arch/sparc/kernel/head_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/head_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -935,3 +935,9 @@ ENTRY(__retl_o1)
 	retl
 	 mov	%o1, %o0
 ENDPROC(__retl_o1)
+
+ENTRY(__retl_o1_asi)
+	wr      %o5, 0x0, %asi
+	retl
+	 mov    %o1, %o0
+ENDPROC(__retl_o1_asi)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/irq_64.c linux-libre-4.9.52-gnu/arch/sparc/kernel/irq_64.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/irq_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/irq_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -1021,7 +1021,7 @@ static void __init alloc_one_queue(unsig
 	unsigned long order = get_order(size);
 	unsigned long p;
 
-	p = __get_free_pages(GFP_KERNEL, order);
+	p = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
 	if (!p) {
 		prom_printf("SUN4V: Error, cannot allocate queue.\n");
 		prom_halt();
@@ -1034,17 +1034,26 @@ static void __init init_cpu_send_mondo_i
 {
 #ifdef CONFIG_SMP
 	unsigned long page;
+	void *mondo, *p;
 
-	BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64));
+	BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > PAGE_SIZE);
+
+	/* Make sure mondo block is 64byte aligned */
+	p = kzalloc(127, GFP_KERNEL);
+	if (!p) {
+		prom_printf("SUN4V: Error, cannot allocate mondo block.\n");
+		prom_halt();
+	}
+	mondo = (void *)(((unsigned long)p + 63) & ~0x3f);
+	tb->cpu_mondo_block_pa = __pa(mondo);
 
 	page = get_zeroed_page(GFP_KERNEL);
 	if (!page) {
-		prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n");
+		prom_printf("SUN4V: Error, cannot allocate cpu list page.\n");
 		prom_halt();
 	}
 
-	tb->cpu_mondo_block_pa = __pa(page);
-	tb->cpu_list_pa = __pa(page + 64);
+	tb->cpu_list_pa = __pa(page);
 #endif
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/kernel.h linux-libre-4.9.52-gnu/arch/sparc/kernel/kernel.h
--- linux-libre-4.9-gnu/arch/sparc/kernel/kernel.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/kernel.h	2017-09-27 08:40:05.000000000 -0400
@@ -37,7 +37,6 @@ void handle_stdfmna(struct pt_regs *regs
 /* smp_64.c */
 void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs);
 void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs);
-void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs);
 void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs);
 void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/pci_sun4v.c linux-libre-4.9.52-gnu/arch/sparc/kernel/pci_sun4v.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/pci_sun4v.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/pci_sun4v.c	2017-09-27 08:40:05.000000000 -0400
@@ -1240,8 +1240,6 @@ static int pci_sun4v_probe(struct platfo
 			 * ATU group, but ATU hcalls won't be available.
 			 */
 			hv_atu = false;
-			pr_err(PFX "Could not register hvapi ATU err=%d\n",
-			       err);
 		} else {
 			pr_info(PFX "Registered hvapi ATU major[%lu] minor[%lu]\n",
 				vatu_major, vatu_minor);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/ptrace_64.c linux-libre-4.9.52-gnu/arch/sparc/kernel/ptrace_64.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/ptrace_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/ptrace_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -313,7 +313,7 @@ static int genregs64_set(struct task_str
 	}
 
 	if (!ret) {
-		unsigned long y;
+		unsigned long y = regs->y;
 
 		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 					 &y,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/smp_64.c linux-libre-4.9.52-gnu/arch/sparc/kernel/smp_64.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/smp_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/smp_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -621,22 +621,48 @@ retry:
 	}
 }
 
-/* Multi-cpu list version.  */
+#define	CPU_MONDO_COUNTER(cpuid)	(cpu_mondo_counter[cpuid])
+#define	MONDO_USEC_WAIT_MIN		2
+#define	MONDO_USEC_WAIT_MAX		100
+#define	MONDO_RETRY_LIMIT		500000
+
+/* Multi-cpu list version.
+ *
+ * Deliver xcalls to 'cnt' number of cpus in 'cpu_list'.
+ * Sometimes not all cpus receive the mondo, requiring us to re-send
+ * the mondo until all cpus have received, or cpus are truly stuck
+ * unable to receive mondo, and we timeout.
+ * Occasionally a target cpu strand is borrowed briefly by hypervisor to
+ * perform guest service, such as PCIe error handling. Consider the
+ * service time, 1 second overall wait is reasonable for 1 cpu.
+ * Here two in-between mondo check wait time are defined: 2 usec for
+ * single cpu quick turn around and up to 100usec for large cpu count.
+ * Deliver mondo to large number of cpus could take longer, we adjusts
+ * the retry count as long as target cpus are making forward progress.
+ */
 static void hypervisor_xcall_deliver(struct trap_per_cpu *tb, int cnt)
 {
-	int retries, this_cpu, prev_sent, i, saw_cpu_error;
+	int this_cpu, tot_cpus, prev_sent, i, rem;
+	int usec_wait, retries, tot_retries;
+	u16 first_cpu = 0xffff;
+	unsigned long xc_rcvd = 0;
 	unsigned long status;
+	int ecpuerror_id = 0;
+	int enocpu_id = 0;
 	u16 *cpu_list;
+	u16 cpu;
 
 	this_cpu = smp_processor_id();
-
 	cpu_list = __va(tb->cpu_list_pa);
-
-	saw_cpu_error = 0;
-	retries = 0;
+	usec_wait = cnt * MONDO_USEC_WAIT_MIN;
+	if (usec_wait > MONDO_USEC_WAIT_MAX)
+		usec_wait = MONDO_USEC_WAIT_MAX;
+	retries = tot_retries = 0;
+	tot_cpus = cnt;
 	prev_sent = 0;
+
 	do {
-		int forward_progress, n_sent;
+		int n_sent, mondo_delivered, target_cpu_busy;
 
 		status = sun4v_cpu_mondo_send(cnt,
 					      tb->cpu_list_pa,
@@ -644,94 +670,113 @@ static void hypervisor_xcall_deliver(str
 
 		/* HV_EOK means all cpus received the xcall, we're done.  */
 		if (likely(status == HV_EOK))
-			break;
+			goto xcall_done;
+
+		/* If not these non-fatal errors, panic */
+		if (unlikely((status != HV_EWOULDBLOCK) &&
+			(status != HV_ECPUERROR) &&
+			(status != HV_ENOCPU)))
+			goto fatal_errors;
 
 		/* First, see if we made any forward progress.
 		 *
+		 * Go through the cpu_list, count the target cpus that have
+		 * received our mondo (n_sent), and those that did not (rem).
+		 * Re-pack cpu_list with the cpus remain to be retried in the
+		 * front - this simplifies tracking the truly stalled cpus.
+		 *
 		 * The hypervisor indicates successful sends by setting
 		 * cpu list entries to the value 0xffff.
+		 *
+		 * EWOULDBLOCK means some target cpus did not receive the
+		 * mondo and retry usually helps.
+		 *
+		 * ECPUERROR means at least one target cpu is in error state,
+		 * it's usually safe to skip the faulty cpu and retry.
+		 *
+		 * ENOCPU means one of the target cpu doesn't belong to the
+		 * domain, perhaps offlined which is unexpected, but not
+		 * fatal and it's okay to skip the offlined cpu.
 		 */
+		rem = 0;
 		n_sent = 0;
 		for (i = 0; i < cnt; i++) {
-			if (likely(cpu_list[i] == 0xffff))
+			cpu = cpu_list[i];
+			if (likely(cpu == 0xffff)) {
 				n_sent++;
+			} else if ((status == HV_ECPUERROR) &&
+				(sun4v_cpu_state(cpu) == HV_CPU_STATE_ERROR)) {
+				ecpuerror_id = cpu + 1;
+			} else if (status == HV_ENOCPU && !cpu_online(cpu)) {
+				enocpu_id = cpu + 1;
+			} else {
+				cpu_list[rem++] = cpu;
+			}
 		}
 
-		forward_progress = 0;
-		if (n_sent > prev_sent)
-			forward_progress = 1;
+		/* No cpu remained, we're done. */
+		if (rem == 0)
+			break;
 
-		prev_sent = n_sent;
+		/* Otherwise, update the cpu count for retry. */
+		cnt = rem;
 
-		/* If we get a HV_ECPUERROR, then one or more of the cpus
-		 * in the list are in error state.  Use the cpu_state()
-		 * hypervisor call to find out which cpus are in error state.
+		/* Record the overall number of mondos received by the
+		 * first of the remaining cpus.
 		 */
-		if (unlikely(status == HV_ECPUERROR)) {
-			for (i = 0; i < cnt; i++) {
-				long err;
-				u16 cpu;
+		if (first_cpu != cpu_list[0]) {
+			first_cpu = cpu_list[0];
+			xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
+		}
 
-				cpu = cpu_list[i];
-				if (cpu == 0xffff)
-					continue;
+		/* Was any mondo delivered successfully? */
+		mondo_delivered = (n_sent > prev_sent);
+		prev_sent = n_sent;
 
-				err = sun4v_cpu_state(cpu);
-				if (err == HV_CPU_STATE_ERROR) {
-					saw_cpu_error = (cpu + 1);
-					cpu_list[i] = 0xffff;
-				}
-			}
-		} else if (unlikely(status != HV_EWOULDBLOCK))
-			goto fatal_mondo_error;
+		/* or, was any target cpu busy processing other mondos? */
+		target_cpu_busy = (xc_rcvd < CPU_MONDO_COUNTER(first_cpu));
+		xc_rcvd = CPU_MONDO_COUNTER(first_cpu);
 
-		/* Don't bother rewriting the CPU list, just leave the
-		 * 0xffff and non-0xffff entries in there and the
-		 * hypervisor will do the right thing.
-		 *
-		 * Only advance timeout state if we didn't make any
-		 * forward progress.
+		/* Retry count is for no progress. If we're making progress,
+		 * reset the retry count.
 		 */
-		if (unlikely(!forward_progress)) {
-			if (unlikely(++retries > 10000))
-				goto fatal_mondo_timeout;
-
-			/* Delay a little bit to let other cpus catch up
-			 * on their cpu mondo queue work.
-			 */
-			udelay(2 * cnt);
+		if (likely(mondo_delivered || target_cpu_busy)) {
+			tot_retries += retries;
+			retries = 0;
+		} else if (unlikely(retries > MONDO_RETRY_LIMIT)) {
+			goto fatal_mondo_timeout;
 		}
-	} while (1);
 
-	if (unlikely(saw_cpu_error))
-		goto fatal_mondo_cpu_error;
+		/* Delay a little bit to let other cpus catch up on
+		 * their cpu mondo queue work.
+		 */
+		if (!mondo_delivered)
+			udelay(usec_wait);
 
-	return;
+		retries++;
+	} while (1);
 
-fatal_mondo_cpu_error:
-	printk(KERN_CRIT "CPU[%d]: SUN4V mondo cpu error, some target cpus "
-	       "(including %d) were in error state\n",
-	       this_cpu, saw_cpu_error - 1);
+xcall_done:
+	if (unlikely(ecpuerror_id > 0)) {
+		pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) was in error state\n",
+		       this_cpu, ecpuerror_id - 1);
+	} else if (unlikely(enocpu_id > 0)) {
+		pr_crit("CPU[%d]: SUN4V mondo cpu error, target cpu(%d) does not belong to the domain\n",
+		       this_cpu, enocpu_id - 1);
+	}
 	return;
 
-fatal_mondo_timeout:
-	printk(KERN_CRIT "CPU[%d]: SUN4V mondo timeout, no forward "
-	       " progress after %d retries.\n",
-	       this_cpu, retries);
-	goto dump_cpu_list_and_out;
-
-fatal_mondo_error:
-	printk(KERN_CRIT "CPU[%d]: Unexpected SUN4V mondo error %lu\n",
-	       this_cpu, status);
-	printk(KERN_CRIT "CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) "
-	       "mondo_block_pa(%lx)\n",
-	       this_cpu, cnt, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
+fatal_errors:
+	/* fatal errors include bad alignment, etc */
+	pr_crit("CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) mondo_block_pa(%lx)\n",
+	       this_cpu, tot_cpus, tb->cpu_list_pa, tb->cpu_mondo_block_pa);
+	panic("Unexpected SUN4V mondo error %lu\n", status);
 
-dump_cpu_list_and_out:
-	printk(KERN_CRIT "CPU[%d]: CPU list [ ", this_cpu);
-	for (i = 0; i < cnt; i++)
-		printk("%u ", cpu_list[i]);
-	printk("]\n");
+fatal_mondo_timeout:
+	/* some cpus being non-responsive to the cpu mondo */
+	pr_crit("CPU[%d]: SUN4V mondo timeout, cpu(%d) made no forward progress after %d retries. Total target cpus(%d).\n",
+	       this_cpu, first_cpu, (tot_retries + retries), tot_cpus);
+	panic("SUN4V mondo timeout panic\n");
 }
 
 static void (*xcall_deliver_impl)(struct trap_per_cpu *, int);
@@ -963,37 +1008,6 @@ void flush_dcache_page_all(struct mm_str
 	preempt_enable();
 }
 
-void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
-{
-	struct mm_struct *mm;
-	unsigned long flags;
-
-	clear_softint(1 << irq);
-
-	/* See if we need to allocate a new TLB context because
-	 * the version of the one we are using is now out of date.
-	 */
-	mm = current->active_mm;
-	if (unlikely(!mm || (mm == &init_mm)))
-		return;
-
-	spin_lock_irqsave(&mm->context.lock, flags);
-
-	if (unlikely(!CTX_VALID(mm->context)))
-		get_new_mmu_context(mm);
-
-	spin_unlock_irqrestore(&mm->context.lock, flags);
-
-	load_secondary_context(mm);
-	__flush_tlb_mm(CTX_HWBITS(mm->context),
-		       SECONDARY_CONTEXT);
-}
-
-void smp_new_mmu_context_version(void)
-{
-	smp_cross_call(&xcall_new_mmu_context_version, 0, 0, 0);
-}
-
 #ifdef CONFIG_KGDB
 void kgdb_roundup_cpus(unsigned long flags)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/sun4v_ivec.S linux-libre-4.9.52-gnu/arch/sparc/kernel/sun4v_ivec.S
--- linux-libre-4.9-gnu/arch/sparc/kernel/sun4v_ivec.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/sun4v_ivec.S	2017-09-27 08:40:05.000000000 -0400
@@ -26,6 +26,21 @@ sun4v_cpu_mondo:
 	ldxa	[%g0] ASI_SCRATCHPAD, %g4
 	sub	%g4, TRAP_PER_CPU_FAULT_INFO, %g4
 
+	/* Get smp_processor_id() into %g3 */
+	sethi	%hi(trap_block), %g5
+	or	%g5, %lo(trap_block), %g5
+	sub	%g4, %g5, %g3
+	srlx	%g3, TRAP_BLOCK_SZ_SHIFT, %g3
+
+	/* Increment cpu_mondo_counter[smp_processor_id()] */
+	sethi	%hi(cpu_mondo_counter), %g5
+	or	%g5, %lo(cpu_mondo_counter), %g5
+	sllx	%g3, 3, %g3
+	add	%g5, %g3, %g5
+	ldx	[%g5], %g3
+	add	%g3, 1, %g3
+	stx	%g3, [%g5]
+
 	/* Get CPU mondo queue base phys address into %g7.  */
 	ldx	[%g4 + TRAP_PER_CPU_CPU_MONDO_PA], %g7
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/sys_sparc_64.c linux-libre-4.9.52-gnu/arch/sparc/kernel/sys_sparc_64.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/sys_sparc_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/sys_sparc_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -118,7 +118,7 @@ unsigned long arch_get_unmapped_area(str
 
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -181,7 +181,7 @@ arch_get_unmapped_area_topdown(struct fi
 
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/traps_64.c linux-libre-4.9.52-gnu/arch/sparc/kernel/traps_64.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/traps_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/traps_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,7 +85,7 @@ static void dump_tl1_traplog(struct tl1_
 
 void bad_trap(struct pt_regs *regs, long lvl)
 {
-	char buffer[32];
+	char buffer[36];
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "bad trap", regs,
@@ -116,7 +116,7 @@ void bad_trap(struct pt_regs *regs, long
 
 void bad_trap_tl1(struct pt_regs *regs, long lvl)
 {
-	char buffer[32];
+	char buffer[36];
 	
 	if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
 		       0, lvl, SIGTRAP) == NOTIFY_STOP)
@@ -2051,6 +2051,73 @@ void sun4v_resum_overflow(struct pt_regs
 	atomic_inc(&sun4v_resum_oflow_cnt);
 }
 
+/* Given a set of registers, get the virtual addressi that was being accessed
+ * by the faulting instructions at tpc.
+ */
+static unsigned long sun4v_get_vaddr(struct pt_regs *regs)
+{
+	unsigned int insn;
+
+	if (!copy_from_user(&insn, (void __user *)regs->tpc, 4)) {
+		return compute_effective_address(regs, insn,
+						 (insn >> 25) & 0x1f);
+	}
+	return 0;
+}
+
+/* Attempt to handle non-resumable errors generated from userspace.
+ * Returns true if the signal was handled, false otherwise.
+ */
+bool sun4v_nonresum_error_user_handled(struct pt_regs *regs,
+				  struct sun4v_error_entry *ent) {
+
+	unsigned int attrs = ent->err_attrs;
+
+	if (attrs & SUN4V_ERR_ATTRS_MEMORY) {
+		unsigned long addr = ent->err_raddr;
+		siginfo_t info;
+
+		if (addr == ~(u64)0) {
+			/* This seems highly unlikely to ever occur */
+			pr_emerg("SUN4V NON-RECOVERABLE ERROR: Memory error detected in unknown location!\n");
+		} else {
+			unsigned long page_cnt = DIV_ROUND_UP(ent->err_size,
+							      PAGE_SIZE);
+
+			/* Break the unfortunate news. */
+			pr_emerg("SUN4V NON-RECOVERABLE ERROR: Memory failed at %016lX\n",
+				 addr);
+			pr_emerg("SUN4V NON-RECOVERABLE ERROR:   Claiming %lu ages.\n",
+				 page_cnt);
+
+			while (page_cnt-- > 0) {
+				if (pfn_valid(addr >> PAGE_SHIFT))
+					get_page(pfn_to_page(addr >> PAGE_SHIFT));
+				addr += PAGE_SIZE;
+			}
+		}
+		info.si_signo = SIGKILL;
+		info.si_errno = 0;
+		info.si_trapno = 0;
+		force_sig_info(info.si_signo, &info, current);
+
+		return true;
+	}
+	if (attrs & SUN4V_ERR_ATTRS_PIO) {
+		siginfo_t info;
+
+		info.si_signo = SIGBUS;
+		info.si_code = BUS_ADRERR;
+		info.si_addr = (void __user *)sun4v_get_vaddr(regs);
+		force_sig_info(info.si_signo, &info, current);
+
+		return true;
+	}
+
+	/* Default to doing nothing */
+	return false;
+}
+
 /* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
  * Log the event, clear the first word of the entry, and die.
  */
@@ -2075,6 +2142,12 @@ void sun4v_nonresum_error(struct pt_regs
 
 	put_cpu();
 
+	if (!(regs->tstate & TSTATE_PRIV) &&
+	    sun4v_nonresum_error_user_handled(regs, &local_copy)) {
+		/* DON'T PANIC: This userspace error was handled. */
+		return;
+	}
+
 #ifdef CONFIG_PCI
 	/* Check for the special PCI poke sequence. */
 	if (pci_poke_in_progress && pci_poke_cpu == cpu) {
@@ -2659,6 +2732,7 @@ void do_getpsr(struct pt_regs *regs)
 	}
 }
 
+u64 cpu_mondo_counter[NR_CPUS] = {0};
 struct trap_per_cpu trap_block[NR_CPUS];
 EXPORT_SYMBOL(trap_block);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/tsb.S linux-libre-4.9.52-gnu/arch/sparc/kernel/tsb.S
--- linux-libre-4.9-gnu/arch/sparc/kernel/tsb.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/tsb.S	2017-09-27 08:40:05.000000000 -0400
@@ -375,6 +375,7 @@ tsb_flush:
 	 * %o1:	TSB base config pointer
 	 * %o2:	TSB huge config pointer, or NULL if none
 	 * %o3:	Hypervisor TSB descriptor physical address
+	 * %o4: Secondary context to load, if non-zero
 	 *
 	 * We have to run this whole thing with interrupts
 	 * disabled so that the current cpu doesn't change
@@ -387,6 +388,17 @@ __tsb_context_switch:
 	rdpr	%pstate, %g1
 	wrpr	%g1, PSTATE_IE, %pstate
 
+	brz,pn	%o4, 1f
+	 mov	SECONDARY_CONTEXT, %o5
+
+661:	stxa	%o4, [%o5] ASI_DMMU
+	.section .sun4v_1insn_patch, "ax"
+	.word	661b
+	stxa	%o4, [%o5] ASI_MMU
+	.previous
+	flush	%g6
+
+1:
 	TRAP_LOAD_TRAP_BLOCK(%g2, %g3)
 
 	stx	%o0, [%g2 + TRAP_PER_CPU_PGD_PADDR]
@@ -470,13 +482,16 @@ __tsb_context_switch:
 	.type	copy_tsb,#function
 copy_tsb:		/* %o0=old_tsb_base, %o1=old_tsb_size
 			 * %o2=new_tsb_base, %o3=new_tsb_size
+			 * %o4=page_size_shift
 			 */
 	sethi		%uhi(TSB_PASS_BITS), %g7
 	srlx		%o3, 4, %o3
-	add		%o0, %o1, %g1	/* end of old tsb */
+	add		%o0, %o1, %o1	/* end of old tsb */
 	sllx		%g7, 32, %g7
 	sub		%o3, 1, %o3	/* %o3 == new tsb hash mask */
 
+	mov		%o4, %g1	/* page_size_shift */
+
 661:	prefetcha	[%o0] ASI_N, #one_read
 	.section	.tsb_phys_patch, "ax"
 	.word		661b
@@ -501,9 +516,9 @@ copy_tsb:		/* %o0=old_tsb_base, %o1=old_
 	/* This can definitely be computed faster... */
 	srlx		%o0, 4, %o5	/* Build index */
 	and		%o5, 511, %o5	/* Mask index */
-	sllx		%o5, PAGE_SHIFT, %o5 /* Put into vaddr position */
+	sllx		%o5, %g1, %o5	/* Put into vaddr position */
 	or		%o4, %o5, %o4	/* Full VADDR. */
-	srlx		%o4, PAGE_SHIFT, %o4 /* Shift down to create index */
+	srlx		%o4, %g1, %o4	/* Shift down to create index */
 	and		%o4, %o3, %o4	/* Mask with new_tsb_nents-1 */
 	sllx		%o4, 4, %o4	/* Shift back up into tsb ent offset */
 	TSB_STORE(%o2 + %o4, %g2)	/* Store TAG */
@@ -511,7 +526,7 @@ copy_tsb:		/* %o0=old_tsb_base, %o1=old_
 	TSB_STORE(%o2 + %o4, %g3)	/* Store TTE */
 
 80:	add		%o0, 16, %o0
-	cmp		%o0, %g1
+	cmp		%o0, %o1
 	bne,pt		%xcc, 90b
 	 nop
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/ttable_64.S linux-libre-4.9.52-gnu/arch/sparc/kernel/ttable_64.S
--- linux-libre-4.9-gnu/arch/sparc/kernel/ttable_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/ttable_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -50,7 +50,7 @@ tl0_resv03e:	BTRAP(0x3e) BTRAP(0x3f) BTR
 tl0_irq1:	TRAP_IRQ(smp_call_function_client, 1)
 tl0_irq2:	TRAP_IRQ(smp_receive_signal_client, 2)
 tl0_irq3:	TRAP_IRQ(smp_penguin_jailcell, 3)
-tl0_irq4:	TRAP_IRQ(smp_new_mmu_context_version_client, 4)
+tl0_irq4:       BTRAP(0x44)
 #else
 tl0_irq1:	BTRAP(0x41)
 tl0_irq2:	BTRAP(0x42)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/kernel/vio.c linux-libre-4.9.52-gnu/arch/sparc/kernel/vio.c
--- linux-libre-4.9-gnu/arch/sparc/kernel/vio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/kernel/vio.c	2017-09-27 08:40:05.000000000 -0400
@@ -302,13 +302,16 @@ static struct vio_dev *vio_create_one(st
 	if (!id) {
 		dev_set_name(&vdev->dev, "%s", bus_id_name);
 		vdev->dev_no = ~(u64)0;
+		vdev->id = ~(u64)0;
 	} else if (!cfg_handle) {
 		dev_set_name(&vdev->dev, "%s-%llu", bus_id_name, *id);
 		vdev->dev_no = *id;
+		vdev->id = ~(u64)0;
 	} else {
 		dev_set_name(&vdev->dev, "%s-%llu-%llu", bus_id_name,
 			     *cfg_handle, *id);
 		vdev->dev_no = *cfg_handle;
+		vdev->id = *id;
 	}
 
 	vdev->dev.parent = parent;
@@ -351,27 +354,84 @@ static void vio_add(struct mdesc_handle
 	(void) vio_create_one(hp, node, &root_vdev->dev);
 }
 
+struct vio_md_node_query {
+	const char *type;
+	u64 dev_no;
+	u64 id;
+};
+
 static int vio_md_node_match(struct device *dev, void *arg)
 {
+	struct vio_md_node_query *query = (struct vio_md_node_query *) arg;
 	struct vio_dev *vdev = to_vio_dev(dev);
 
-	if (vdev->mp == (u64) arg)
-		return 1;
+	if (vdev->dev_no != query->dev_no)
+		return 0;
+	if (vdev->id != query->id)
+		return 0;
+	if (strcmp(vdev->type, query->type))
+		return 0;
 
-	return 0;
+	return 1;
 }
 
 static void vio_remove(struct mdesc_handle *hp, u64 node)
 {
+	const char *type;
+	const u64 *id, *cfg_handle;
+	u64 a;
+	struct vio_md_node_query query;
 	struct device *dev;
 
-	dev = device_find_child(&root_vdev->dev, (void *) node,
+	type = mdesc_get_property(hp, node, "device-type", NULL);
+	if (!type) {
+		type = mdesc_get_property(hp, node, "name", NULL);
+		if (!type)
+			type = mdesc_node_name(hp, node);
+	}
+
+	query.type = type;
+
+	id = mdesc_get_property(hp, node, "id", NULL);
+	cfg_handle = NULL;
+	mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) {
+		u64 target;
+
+		target = mdesc_arc_target(hp, a);
+		cfg_handle = mdesc_get_property(hp, target,
+						"cfg-handle", NULL);
+		if (cfg_handle)
+			break;
+	}
+
+	if (!id) {
+		query.dev_no = ~(u64)0;
+		query.id = ~(u64)0;
+	} else if (!cfg_handle) {
+		query.dev_no = *id;
+		query.id = ~(u64)0;
+	} else {
+		query.dev_no = *cfg_handle;
+		query.id = *id;
+	}
+
+	dev = device_find_child(&root_vdev->dev, &query,
 				vio_md_node_match);
 	if (dev) {
 		printk(KERN_INFO "VIO: Removing device %s\n", dev_name(dev));
 
 		device_unregister(dev);
 		put_device(dev);
+	} else {
+		if (!id)
+			printk(KERN_ERR "VIO: Removed unknown %s node.\n",
+			       type);
+		else if (!cfg_handle)
+			printk(KERN_ERR "VIO: Removed unknown %s node %llu.\n",
+			       type, *id);
+		else
+			printk(KERN_ERR "VIO: Removed unknown %s node %llu-%llu.\n",
+			       type, *cfg_handle, *id);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/lib/GENbzero.S linux-libre-4.9.52-gnu/arch/sparc/lib/GENbzero.S
--- linux-libre-4.9-gnu/arch/sparc/lib/GENbzero.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/lib/GENbzero.S	2017-09-27 08:40:05.000000000 -0400
@@ -8,7 +8,7 @@
 98:	x,y;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_o1;	\
+	.word 98b, __retl_o1_asi;\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/lib/Makefile linux-libre-4.9.52-gnu/arch/sparc/lib/Makefile
--- linux-libre-4.9-gnu/arch/sparc/lib/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/lib/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -15,6 +15,7 @@ lib-$(CONFIG_SPARC32) += copy_user.o loc
 lib-$(CONFIG_SPARC64) += atomic_64.o
 lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o
 lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o
+lib-$(CONFIG_SPARC64) += multi3.o
 
 lib-$(CONFIG_SPARC64) += copy_page.o clear_page.o bzero.o
 lib-$(CONFIG_SPARC64) += csum_copy.o csum_copy_from_user.o csum_copy_to_user.o
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/lib/multi3.S linux-libre-4.9.52-gnu/arch/sparc/lib/multi3.S
--- linux-libre-4.9-gnu/arch/sparc/lib/multi3.S	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/lib/multi3.S	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,35 @@
+#include <linux/linkage.h>
+#include <asm/export.h>
+
+	.text
+	.align	4
+ENTRY(__multi3) /* %o0 = u, %o1 = v */
+	mov	%o1, %g1
+	srl	%o3, 0, %g4
+	mulx	%g4, %g1, %o1
+	srlx	%g1, 0x20, %g3
+	mulx	%g3, %g4, %g5
+	sllx	%g5, 0x20, %o5
+	srl	%g1, 0, %g4
+	sub	%o1, %o5, %o5
+	srlx	%o5, 0x20, %o5
+	addcc	%g5, %o5, %g5
+	srlx	%o3, 0x20, %o5
+	mulx	%g4, %o5, %g4
+	mulx	%g3, %o5, %o5
+	sethi	%hi(0x80000000), %g3
+	addcc	%g5, %g4, %g5
+	srlx	%g5, 0x20, %g5
+	add	%g3, %g3, %g3
+	movcc	%xcc, %g0, %g3
+	addcc	%o5, %g5, %o5
+	sllx	%g4, 0x20, %g4
+	add	%o1, %g4, %o1
+	add	%o5, %g3, %g2
+	mulx	%g1, %o2, %g1
+	add	%g1, %g2, %g1
+	mulx	%o0, %o3, %o0
+	retl
+	 add	%g1, %o0, %o0
+ENDPROC(__multi3)
+EXPORT_SYMBOL(__multi3)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/lib/NGbzero.S linux-libre-4.9.52-gnu/arch/sparc/lib/NGbzero.S
--- linux-libre-4.9-gnu/arch/sparc/lib/NGbzero.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/lib/NGbzero.S	2017-09-27 08:40:05.000000000 -0400
@@ -8,7 +8,7 @@
 98:	x,y;			\
 	.section __ex_table,"a";\
 	.align 4;		\
-	.word 98b, __retl_o1;	\
+	.word 98b, __retl_o1_asi;\
 	.text;			\
 	.align 4;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/lib/U3memcpy.S linux-libre-4.9.52-gnu/arch/sparc/lib/U3memcpy.S
--- linux-libre-4.9-gnu/arch/sparc/lib/U3memcpy.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/lib/U3memcpy.S	2017-09-27 08:40:05.000000000 -0400
@@ -145,13 +145,13 @@ ENDPROC(U3_retl_o2_plus_GS_plus_0x08)
 ENTRY(U3_retl_o2_and_7_plus_GS)
 	and	%o2, 7, %o2
 	retl
-	 add	%o2, GLOBAL_SPARE, %o2
+	 add	%o2, GLOBAL_SPARE, %o0
 ENDPROC(U3_retl_o2_and_7_plus_GS)
 ENTRY(U3_retl_o2_and_7_plus_GS_plus_8)
 	add	GLOBAL_SPARE, 8, GLOBAL_SPARE
 	and	%o2, 7, %o2
 	retl
-	 add	%o2, GLOBAL_SPARE, %o2
+	 add	%o2, GLOBAL_SPARE, %o0
 ENDPROC(U3_retl_o2_and_7_plus_GS_plus_8)
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/mm/hugetlbpage.c linux-libre-4.9.52-gnu/arch/sparc/mm/hugetlbpage.c
--- linux-libre-4.9-gnu/arch/sparc/mm/hugetlbpage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/mm/hugetlbpage.c	2017-09-27 08:40:05.000000000 -0400
@@ -116,7 +116,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, HPAGE_SIZE);
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/mm/init_32.c linux-libre-4.9.52-gnu/arch/sparc/mm/init_32.c
--- linux-libre-4.9-gnu/arch/sparc/mm/init_32.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/mm/init_32.c	2017-09-27 08:40:05.000000000 -0400
@@ -301,7 +301,7 @@ void __init mem_init(void)
 
 
 	/* Saves us work later. */
-	memset((void *)&empty_zero_page, 0, PAGE_SIZE);
+	memset((void *)empty_zero_page, 0, PAGE_SIZE);
 
 	i = last_valid_pfn >> ((20 - PAGE_SHIFT) + 5);
 	i += 1;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/mm/init_64.c linux-libre-4.9.52-gnu/arch/sparc/mm/init_64.c
--- linux-libre-4.9-gnu/arch/sparc/mm/init_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/mm/init_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -658,10 +658,58 @@ EXPORT_SYMBOL(__flush_dcache_range);
 
 /* get_new_mmu_context() uses "cache + 1".  */
 DEFINE_SPINLOCK(ctx_alloc_lock);
-unsigned long tlb_context_cache = CTX_FIRST_VERSION - 1;
+unsigned long tlb_context_cache = CTX_FIRST_VERSION;
 #define MAX_CTX_NR	(1UL << CTX_NR_BITS)
 #define CTX_BMAP_SLOTS	BITS_TO_LONGS(MAX_CTX_NR)
 DECLARE_BITMAP(mmu_context_bmap, MAX_CTX_NR);
+DEFINE_PER_CPU(struct mm_struct *, per_cpu_secondary_mm) = {0};
+
+static void mmu_context_wrap(void)
+{
+	unsigned long old_ver = tlb_context_cache & CTX_VERSION_MASK;
+	unsigned long new_ver, new_ctx, old_ctx;
+	struct mm_struct *mm;
+	int cpu;
+
+	bitmap_zero(mmu_context_bmap, 1 << CTX_NR_BITS);
+
+	/* Reserve kernel context */
+	set_bit(0, mmu_context_bmap);
+
+	new_ver = (tlb_context_cache & CTX_VERSION_MASK) + CTX_FIRST_VERSION;
+	if (unlikely(new_ver == 0))
+		new_ver = CTX_FIRST_VERSION;
+	tlb_context_cache = new_ver;
+
+	/*
+	 * Make sure that any new mm that are added into per_cpu_secondary_mm,
+	 * are going to go through get_new_mmu_context() path.
+	 */
+	mb();
+
+	/*
+	 * Updated versions to current on those CPUs that had valid secondary
+	 * contexts
+	 */
+	for_each_online_cpu(cpu) {
+		/*
+		 * If a new mm is stored after we took this mm from the array,
+		 * it will go into get_new_mmu_context() path, because we
+		 * already bumped the version in tlb_context_cache.
+		 */
+		mm = per_cpu(per_cpu_secondary_mm, cpu);
+
+		if (unlikely(!mm || mm == &init_mm))
+			continue;
+
+		old_ctx = mm->context.sparc64_ctx_val;
+		if (likely((old_ctx & CTX_VERSION_MASK) == old_ver)) {
+			new_ctx = (old_ctx & ~CTX_VERSION_MASK) | new_ver;
+			set_bit(new_ctx & CTX_NR_MASK, mmu_context_bmap);
+			mm->context.sparc64_ctx_val = new_ctx;
+		}
+	}
+}
 
 /* Caller does TLB context flushing on local CPU if necessary.
  * The caller also ensures that CTX_VALID(mm->context) is false.
@@ -677,48 +725,30 @@ void get_new_mmu_context(struct mm_struc
 {
 	unsigned long ctx, new_ctx;
 	unsigned long orig_pgsz_bits;
-	int new_version;
 
 	spin_lock(&ctx_alloc_lock);
+retry:
+	/* wrap might have happened, test again if our context became valid */
+	if (unlikely(CTX_VALID(mm->context)))
+		goto out;
 	orig_pgsz_bits = (mm->context.sparc64_ctx_val & CTX_PGSZ_MASK);
 	ctx = (tlb_context_cache + 1) & CTX_NR_MASK;
 	new_ctx = find_next_zero_bit(mmu_context_bmap, 1 << CTX_NR_BITS, ctx);
-	new_version = 0;
 	if (new_ctx >= (1 << CTX_NR_BITS)) {
 		new_ctx = find_next_zero_bit(mmu_context_bmap, ctx, 1);
 		if (new_ctx >= ctx) {
-			int i;
-			new_ctx = (tlb_context_cache & CTX_VERSION_MASK) +
-				CTX_FIRST_VERSION;
-			if (new_ctx == 1)
-				new_ctx = CTX_FIRST_VERSION;
-
-			/* Don't call memset, for 16 entries that's just
-			 * plain silly...
-			 */
-			mmu_context_bmap[0] = 3;
-			mmu_context_bmap[1] = 0;
-			mmu_context_bmap[2] = 0;
-			mmu_context_bmap[3] = 0;
-			for (i = 4; i < CTX_BMAP_SLOTS; i += 4) {
-				mmu_context_bmap[i + 0] = 0;
-				mmu_context_bmap[i + 1] = 0;
-				mmu_context_bmap[i + 2] = 0;
-				mmu_context_bmap[i + 3] = 0;
-			}
-			new_version = 1;
-			goto out;
+			mmu_context_wrap();
+			goto retry;
 		}
 	}
+	if (mm->context.sparc64_ctx_val)
+		cpumask_clear(mm_cpumask(mm));
 	mmu_context_bmap[new_ctx>>6] |= (1UL << (new_ctx & 63));
 	new_ctx |= (tlb_context_cache & CTX_VERSION_MASK);
-out:
 	tlb_context_cache = new_ctx;
 	mm->context.sparc64_ctx_val = new_ctx | orig_pgsz_bits;
+out:
 	spin_unlock(&ctx_alloc_lock);
-
-	if (unlikely(new_version))
-		smp_new_mmu_context_version();
 }
 
 static int numa_enabled = 1;
@@ -1495,7 +1525,7 @@ bool kern_addr_valid(unsigned long addr)
 	if ((long)addr < 0L) {
 		unsigned long pa = __pa(addr);
 
-		if ((addr >> max_phys_bits) != 0UL)
+		if ((pa >> max_phys_bits) != 0UL)
 			return false;
 
 		return pfn_valid(pa >> PAGE_SHIFT);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/mm/tsb.c linux-libre-4.9.52-gnu/arch/sparc/mm/tsb.c
--- linux-libre-4.9-gnu/arch/sparc/mm/tsb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/mm/tsb.c	2017-09-27 08:40:05.000000000 -0400
@@ -451,7 +451,8 @@ retry_tsb_alloc:
 		extern void copy_tsb(unsigned long old_tsb_base,
 				     unsigned long old_tsb_size,
 				     unsigned long new_tsb_base,
-				     unsigned long new_tsb_size);
+				     unsigned long new_tsb_size,
+				     unsigned long page_size_shift);
 		unsigned long old_tsb_base = (unsigned long) old_tsb;
 		unsigned long new_tsb_base = (unsigned long) new_tsb;
 
@@ -459,7 +460,9 @@ retry_tsb_alloc:
 			old_tsb_base = __pa(old_tsb_base);
 			new_tsb_base = __pa(new_tsb_base);
 		}
-		copy_tsb(old_tsb_base, old_size, new_tsb_base, new_size);
+		copy_tsb(old_tsb_base, old_size, new_tsb_base, new_size,
+			tsb_index == MM_TSB_BASE ?
+			PAGE_SHIFT : REAL_HPAGE_SHIFT);
 	}
 
 	mm->context.tsb_block[tsb_index].tsb = new_tsb;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/mm/ultra.S linux-libre-4.9.52-gnu/arch/sparc/mm/ultra.S
--- linux-libre-4.9-gnu/arch/sparc/mm/ultra.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/mm/ultra.S	2017-09-27 08:40:05.000000000 -0400
@@ -971,11 +971,6 @@ xcall_capture:
 	wr		%g0, (1 << PIL_SMP_CAPTURE), %set_softint
 	retry
 
-	.globl		xcall_new_mmu_context_version
-xcall_new_mmu_context_version:
-	wr		%g0, (1 << PIL_SMP_CTX_NEW_VERSION), %set_softint
-	retry
-
 #ifdef CONFIG_KGDB
 	.globl		xcall_kgdb_capture
 xcall_kgdb_capture:
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/sparc/power/hibernate.c linux-libre-4.9.52-gnu/arch/sparc/power/hibernate.c
--- linux-libre-4.9-gnu/arch/sparc/power/hibernate.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/sparc/power/hibernate.c	2017-09-27 08:40:05.000000000 -0400
@@ -35,6 +35,5 @@ void restore_processor_state(void)
 {
 	struct mm_struct *mm = current->active_mm;
 
-	load_secondary_context(mm);
-	tsb_context_switch(mm);
+	tsb_context_switch_ctx(mm, CTX_HWBITS(mm->context));
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/tile/kernel/ptrace.c linux-libre-4.9.52-gnu/arch/tile/kernel/ptrace.c
--- linux-libre-4.9-gnu/arch/tile/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/tile/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -111,7 +111,7 @@ static int tile_gpr_set(struct task_stru
 			  const void *kbuf, const void __user *ubuf)
 {
 	int ret;
-	struct pt_regs regs;
+	struct pt_regs regs = *task_pt_regs(target);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &regs, 0,
 				 sizeof(regs));
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/tile/mm/hugetlbpage.c linux-libre-4.9.52-gnu/arch/tile/mm/hugetlbpage.c
--- linux-libre-4.9-gnu/arch/tile/mm/hugetlbpage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/tile/mm/hugetlbpage.c	2017-09-27 08:40:05.000000000 -0400
@@ -232,7 +232,7 @@ unsigned long hugetlb_get_unmapped_area(
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (current->mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/um/kernel/initrd.c linux-libre-4.9.52-gnu/arch/um/kernel/initrd.c
--- linux-libre-4.9-gnu/arch/um/kernel/initrd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/um/kernel/initrd.c	2017-09-27 08:40:05.000000000 -0400
@@ -14,7 +14,7 @@
 static char *initrd __initdata = NULL;
 static int load_initrd(char *filename, void *buf, int size);
 
-static int __init read_initrd(void)
+int __init read_initrd(void)
 {
 	void *area;
 	long long size;
@@ -46,8 +46,6 @@ static int __init read_initrd(void)
 	return 0;
 }
 
-__uml_postsetup(read_initrd);
-
 static int __init uml_initrd_setup(char *line, int *add)
 {
 	initrd = line;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/um/kernel/um_arch.c linux-libre-4.9.52-gnu/arch/um/kernel/um_arch.c
--- linux-libre-4.9-gnu/arch/um/kernel/um_arch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/um/kernel/um_arch.c	2017-09-27 08:40:05.000000000 -0400
@@ -336,11 +336,17 @@ int __init linux_main(int argc, char **a
 	return start_uml();
 }
 
+int __init __weak read_initrd(void)
+{
+	return 0;
+}
+
 void __init setup_arch(char **cmdline_p)
 {
 	stack_protections((unsigned long) &init_thread_info);
 	setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem);
 	mem_total_pages(physmem_size, iomem_size, highmem);
+	read_initrd();
 
 	paging_init();
 	strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/boot/boot.h linux-libre-4.9.52-gnu/arch/x86/boot/boot.h
--- linux-libre-4.9-gnu/arch/x86/boot/boot.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/boot/boot.h	2017-09-27 08:40:05.000000000 -0400
@@ -16,7 +16,7 @@
 #ifndef BOOT_BOOT_H
 #define BOOT_BOOT_H
 
-#define STACK_SIZE	512	/* Minimum number of bytes for stack */
+#define STACK_SIZE	1024	/* Minimum number of bytes for stack */
 
 #ifndef __ASSEMBLY__
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/boot/compressed/kaslr.c linux-libre-4.9.52-gnu/arch/x86/boot/compressed/kaslr.c
--- linux-libre-4.9-gnu/arch/x86/boot/compressed/kaslr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/boot/compressed/kaslr.c	2017-09-27 08:40:05.000000000 -0400
@@ -430,9 +430,6 @@ void choose_random_location(unsigned lon
 {
 	unsigned long random_addr, min_addr;
 
-	/* By default, keep output position unchanged. */
-	*virt_addr = *output;
-
 	if (cmdline_find_option_bool("nokaslr")) {
 		warn("KASLR disabled: 'nokaslr' on cmdline.");
 		return;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/boot/compressed/Makefile linux-libre-4.9.52-gnu/arch/x86/boot/compressed/Makefile
--- linux-libre-4.9-gnu/arch/x86/boot/compressed/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/boot/compressed/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -94,7 +94,7 @@ vmlinux-objs-$(CONFIG_EFI_MIXED) += $(ob
 quiet_cmd_check_data_rel = DATAREL $@
 define cmd_check_data_rel
 	for obj in $(filter %.o,$^); do \
-		readelf -S $$obj | grep -qF .rel.local && { \
+		${CROSS_COMPILE}readelf -S $$obj | grep -qF .rel.local && { \
 			echo "error: $$obj has data relocations!" >&2; \
 			exit 1; \
 		} || true; \
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/boot/compressed/misc.c linux-libre-4.9.52-gnu/arch/x86/boot/compressed/misc.c
--- linux-libre-4.9-gnu/arch/x86/boot/compressed/misc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/boot/compressed/misc.c	2017-09-27 08:40:05.000000000 -0400
@@ -338,7 +338,7 @@ asmlinkage __visible void *extract_kerne
 				  unsigned long output_len)
 {
 	const unsigned long kernel_total_size = VO__end - VO__text;
-	unsigned long virt_addr = (unsigned long)output;
+	unsigned long virt_addr = LOAD_PHYSICAL_ADDR;
 
 	/* Retain x86 boot parameters pointer passed from startup_32/64. */
 	boot_params = rmode;
@@ -397,7 +397,7 @@ asmlinkage __visible void *extract_kerne
 #ifndef CONFIG_RELOCATABLE
 	if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
 		error("Destination address does not match LOAD_PHYSICAL_ADDR");
-	if ((unsigned long)output != virt_addr)
+	if (virt_addr != LOAD_PHYSICAL_ADDR)
 		error("Destination virtual address changed when not relocatable");
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/boot/compressed/misc.h linux-libre-4.9.52-gnu/arch/x86/boot/compressed/misc.h
--- linux-libre-4.9-gnu/arch/x86/boot/compressed/misc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/boot/compressed/misc.h	2017-09-27 08:40:05.000000000 -0400
@@ -81,8 +81,6 @@ static inline void choose_random_locatio
 					  unsigned long output_size,
 					  unsigned long *virt_addr)
 {
-	/* No change from existing output location. */
-	*virt_addr = *output;
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/boot/string.c linux-libre-4.9.52-gnu/arch/x86/boot/string.c
--- linux-libre-4.9-gnu/arch/x86/boot/string.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/boot/string.c	2017-09-27 08:40:05.000000000 -0400
@@ -14,6 +14,7 @@
 
 #include <linux/types.h>
 #include "ctype.h"
+#include "string.h"
 
 int memcmp(const void *s1, const void *s2, size_t len)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/boot/string.h linux-libre-4.9.52-gnu/arch/x86/boot/string.h
--- linux-libre-4.9-gnu/arch/x86/boot/string.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/boot/string.h	2017-09-27 08:40:05.000000000 -0400
@@ -18,4 +18,13 @@ int memcmp(const void *s1, const void *s
 #define memset(d,c,l) __builtin_memset(d,c,l)
 #define memcmp	__builtin_memcmp
 
+extern int strcmp(const char *str1, const char *str2);
+extern int strncmp(const char *cs, const char *ct, size_t count);
+extern size_t strlen(const char *s);
+extern char *strstr(const char *s1, const char *s2);
+extern size_t strnlen(const char *s, size_t maxlen);
+extern unsigned int atou(const char *s);
+extern unsigned long long simple_strtoull(const char *cp, char **endp,
+					  unsigned int base);
+
 #endif /* BOOT_STRING_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S linux-libre-4.9.52-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S
--- linux-libre-4.9-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/crypto/sha1_avx2_x86_64_asm.S	2017-09-27 08:40:05.000000000 -0400
@@ -117,11 +117,10 @@
 	.set T1, REG_T1
 .endm
 
-#define K_BASE		%r8
 #define HASH_PTR	%r9
+#define BLOCKS_CTR	%r8
 #define BUFFER_PTR	%r10
 #define BUFFER_PTR2	%r13
-#define BUFFER_END	%r11
 
 #define PRECALC_BUF	%r14
 #define WK_BUF		%r15
@@ -205,14 +204,14 @@
 		 * blended AVX2 and ALU instruction scheduling
 		 * 1 vector iteration per 8 rounds
 		 */
-		vmovdqu ((i * 2) + PRECALC_OFFSET)(BUFFER_PTR), W_TMP
+		vmovdqu (i * 2)(BUFFER_PTR), W_TMP
 	.elseif ((i & 7) == 1)
-		vinsertf128 $1, (((i-1) * 2)+PRECALC_OFFSET)(BUFFER_PTR2),\
+		vinsertf128 $1, ((i-1) * 2)(BUFFER_PTR2),\
 			 WY_TMP, WY_TMP
 	.elseif ((i & 7) == 2)
 		vpshufb YMM_SHUFB_BSWAP, WY_TMP, WY
 	.elseif ((i & 7) == 4)
-		vpaddd  K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 	.elseif ((i & 7) == 7)
 		vmovdqu  WY_TMP, PRECALC_WK(i&~7)
 
@@ -255,7 +254,7 @@
 		vpxor	WY, WY_TMP, WY_TMP
 	.elseif ((i & 7) == 7)
 		vpxor	WY_TMP2, WY_TMP, WY
-		vpaddd	K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 		vmovdqu	WY_TMP, PRECALC_WK(i&~7)
 
 		PRECALC_ROTATE_WY
@@ -291,7 +290,7 @@
 		vpsrld	$30, WY, WY
 		vpor	WY, WY_TMP, WY
 	.elseif ((i & 7) == 7)
-		vpaddd	K_XMM(K_BASE), WY, WY_TMP
+		vpaddd  K_XMM + K_XMM_AR(%rip), WY, WY_TMP
 		vmovdqu	WY_TMP, PRECALC_WK(i&~7)
 
 		PRECALC_ROTATE_WY
@@ -446,6 +445,16 @@
 
 .endm
 
+/* Add constant only if (%2 > %3) condition met (uses RTA as temp)
+ * %1 + %2 >= %3 ? %4 : 0
+ */
+.macro ADD_IF_GE a, b, c, d
+	mov     \a, RTA
+	add     $\d, RTA
+	cmp     $\c, \b
+	cmovge  RTA, \a
+.endm
+
 /*
  * macro implements 80 rounds of SHA-1, for multiple blocks with s/w pipelining
  */
@@ -463,13 +472,16 @@
 	lea	(2*4*80+32)(%rsp), WK_BUF
 
 	# Precalc WK for first 2 blocks
-	PRECALC_OFFSET = 0
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 2, 64
 	.set i, 0
 	.rept    160
 		PRECALC i
 		.set i, i + 1
 	.endr
-	PRECALC_OFFSET = 128
+
+	/* Go to next block if needed */
+	ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 3, 128
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
 	xchg	WK_BUF, PRECALC_BUF
 
 	.align 32
@@ -479,8 +491,8 @@ _loop:
 	 * we use K_BASE value as a signal of a last block,
 	 * it is set below by: cmovae BUFFER_PTR, K_BASE
 	 */
-	cmp	K_BASE, BUFFER_PTR
-	jne	_begin
+	test BLOCKS_CTR, BLOCKS_CTR
+	jnz _begin
 	.align 32
 	jmp	_end
 	.align 32
@@ -512,10 +524,10 @@ _loop0:
 		.set j, j+2
 	.endr
 
-	add	$(2*64), BUFFER_PTR       /* move to next odd-64-byte block */
-	cmp	BUFFER_END, BUFFER_PTR    /* is current block the last one? */
-	cmovae	K_BASE, BUFFER_PTR	/* signal the last iteration smartly */
-
+	/* Update Counter */
+	sub $1, BLOCKS_CTR
+	/* Move to the next block only if needed*/
+	ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 4, 128
 	/*
 	 * rounds
 	 * 60,62,64,66,68
@@ -532,8 +544,8 @@ _loop0:
 	UPDATE_HASH	12(HASH_PTR), D
 	UPDATE_HASH	16(HASH_PTR), E
 
-	cmp	K_BASE, BUFFER_PTR	/* is current block the last one? */
-	je	_loop
+	test	BLOCKS_CTR, BLOCKS_CTR
+	jz	_loop
 
 	mov	TB, B
 
@@ -575,10 +587,10 @@ _loop2:
 		.set j, j+2
 	.endr
 
-	add	$(2*64), BUFFER_PTR2      /* move to next even-64-byte block */
-
-	cmp	BUFFER_END, BUFFER_PTR2   /* is current block the last one */
-	cmovae	K_BASE, BUFFER_PTR       /* signal the last iteration smartly */
+	/* update counter */
+	sub     $1, BLOCKS_CTR
+	/* Move to the next block only if needed*/
+	ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
 
 	jmp	_loop3
 _loop3:
@@ -641,19 +653,12 @@ _loop3:
 
 	avx2_zeroupper
 
-	lea	K_XMM_AR(%rip), K_BASE
-
+	/* Setup initial values */
 	mov	CTX, HASH_PTR
 	mov	BUF, BUFFER_PTR
-	lea	64(BUF), BUFFER_PTR2
-
-	shl	$6, CNT			/* mul by 64 */
-	add	BUF, CNT
-	add	$64, CNT
-	mov	CNT, BUFFER_END
 
-	cmp	BUFFER_END, BUFFER_PTR2
-	cmovae	K_BASE, BUFFER_PTR2
+	mov	BUF, BUFFER_PTR2
+	mov	CNT, BLOCKS_CTR
 
 	xmm_mov	BSWAP_SHUFB_CTL(%rip), YMM_SHUFB_BSWAP
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/entry/entry_32.S linux-libre-4.9.52-gnu/arch/x86/entry/entry_32.S
--- linux-libre-4.9-gnu/arch/x86/entry/entry_32.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/entry/entry_32.S	2017-09-27 08:40:05.000000000 -0400
@@ -889,8 +889,8 @@ ftrace_graph_call:
 	jmp	ftrace_stub
 #endif
 
-.globl ftrace_stub
-ftrace_stub:
+/* This is weak to keep gas from relaxing the jumps */
+WEAK(ftrace_stub)
 	ret
 END(ftrace_caller)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/entry/entry_64.S linux-libre-4.9.52-gnu/arch/x86/entry/entry_64.S
--- linux-libre-4.9-gnu/arch/x86/entry/entry_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/entry/entry_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -1215,6 +1215,8 @@ ENTRY(nmi)
 	 * other IST entries.
 	 */
 
+	ASM_CLAC
+
 	/* Use %rdx as our temp variable throughout */
 	pushq	%rdx
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/entry/vdso/vdso32-setup.c linux-libre-4.9.52-gnu/arch/x86/entry/vdso/vdso32-setup.c
--- linux-libre-4.9-gnu/arch/x86/entry/vdso/vdso32-setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/entry/vdso/vdso32-setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -30,8 +30,10 @@ static int __init vdso32_setup(char *s)
 {
 	vdso32_enabled = simple_strtoul(s, NULL, 0);
 
-	if (vdso32_enabled > 1)
+	if (vdso32_enabled > 1) {
 		pr_warn("vdso32 values other than 0 and 1 are no longer allowed; vdso disabled\n");
+		vdso32_enabled = 0;
+	}
 
 	return 1;
 }
@@ -62,13 +64,18 @@ subsys_initcall(sysenter_setup);
 /* Register vsyscall32 into the ABI table */
 #include <linux/sysctl.h>
 
+static const int zero;
+static const int one = 1;
+
 static struct ctl_table abi_table2[] = {
 	{
 		.procname	= "vsyscall32",
 		.data		= &vdso32_enabled,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= (int *)&zero,
+		.extra2		= (int *)&one,
 	},
 	{}
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/core.c linux-libre-4.9.52-gnu/arch/x86/events/core.c
--- linux-libre-4.9-gnu/arch/x86/events/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -365,7 +365,11 @@ int x86_add_exclusive(unsigned int what)
 {
 	int i;
 
-	if (x86_pmu.lbr_pt_coexist)
+	/*
+	 * When lbr_pt_coexist we allow PT to coexist with either LBR or BTS.
+	 * LBR and BTS are still mutually exclusive.
+	 */
+	if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
 		return 0;
 
 	if (!atomic_inc_not_zero(&x86_pmu.lbr_exclusive[what])) {
@@ -388,7 +392,7 @@ fail_unlock:
 
 void x86_del_exclusive(unsigned int what)
 {
-	if (x86_pmu.lbr_pt_coexist)
+	if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
 		return;
 
 	atomic_dec(&x86_pmu.lbr_exclusive[what]);
@@ -501,6 +505,10 @@ int x86_pmu_hw_config(struct perf_event
 
 		if (event->attr.precise_ip > precise)
 			return -EOPNOTSUPP;
+
+		/* There's no sense in having PEBS for non sampling events: */
+		if (!is_sampling_event(event))
+			return -EINVAL;
 	}
 	/*
 	 * check that PEBS LBR correction does not conflict with
@@ -2092,8 +2100,8 @@ static int x86_pmu_event_init(struct per
 
 static void refresh_pce(void *ignored)
 {
-	if (current->mm)
-		load_mm_cr4(current->mm);
+	if (current->active_mm)
+		load_mm_cr4(current->active_mm);
 }
 
 static void x86_pmu_event_mapped(struct perf_event *event)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/intel/core.c linux-libre-4.9.52-gnu/arch/x86/events/intel/core.c
--- linux-libre-4.9-gnu/arch/x86/events/intel/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/intel/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -431,11 +431,11 @@ static __initconst const u64 skl_hw_cach
  [ C(DTLB) ] = {
 	[ C(OP_READ) ] = {
 		[ C(RESULT_ACCESS) ] = 0x81d0,	/* MEM_INST_RETIRED.ALL_LOADS */
-		[ C(RESULT_MISS)   ] = 0x608,	/* DTLB_LOAD_MISSES.WALK_COMPLETED */
+		[ C(RESULT_MISS)   ] = 0xe08,	/* DTLB_LOAD_MISSES.WALK_COMPLETED */
 	},
 	[ C(OP_WRITE) ] = {
 		[ C(RESULT_ACCESS) ] = 0x82d0,	/* MEM_INST_RETIRED.ALL_STORES */
-		[ C(RESULT_MISS)   ] = 0x649,	/* DTLB_STORE_MISSES.WALK_COMPLETED */
+		[ C(RESULT_MISS)   ] = 0xe49,	/* DTLB_STORE_MISSES.WALK_COMPLETED */
 	},
 	[ C(OP_PREFETCH) ] = {
 		[ C(RESULT_ACCESS) ] = 0x0,
@@ -3164,13 +3164,16 @@ static void intel_pmu_cpu_starting(int c
 
 	if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) {
 		for_each_cpu(i, topology_sibling_cpumask(cpu)) {
+			struct cpu_hw_events *sibling;
 			struct intel_excl_cntrs *c;
 
-			c = per_cpu(cpu_hw_events, i).excl_cntrs;
+			sibling = &per_cpu(cpu_hw_events, i);
+			c = sibling->excl_cntrs;
 			if (c && c->core_id == core_id) {
 				cpuc->kfree_on_online[1] = cpuc->excl_cntrs;
 				cpuc->excl_cntrs = c;
-				cpuc->excl_thread_id = 1;
+				if (!sibling->excl_thread_id)
+					cpuc->excl_thread_id = 1;
 				break;
 			}
 		}
@@ -3975,7 +3978,7 @@ __init int intel_pmu_init(void)
 		     x86_pmu.num_counters, INTEL_PMC_MAX_GENERIC);
 		x86_pmu.num_counters = INTEL_PMC_MAX_GENERIC;
 	}
-	x86_pmu.intel_ctrl = (1 << x86_pmu.num_counters) - 1;
+	x86_pmu.intel_ctrl = (1ULL << x86_pmu.num_counters) - 1;
 
 	if (x86_pmu.num_counters_fixed > INTEL_PMC_MAX_FIXED) {
 		WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!",
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/intel/cstate.c linux-libre-4.9.52-gnu/arch/x86/events/intel/cstate.c
--- linux-libre-4.9-gnu/arch/x86/events/intel/cstate.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/intel/cstate.c	2017-09-27 08:40:05.000000000 -0400
@@ -434,6 +434,7 @@ static struct pmu cstate_core_pmu = {
 	.stop		= cstate_pmu_event_stop,
 	.read		= cstate_pmu_event_update,
 	.capabilities	= PERF_PMU_CAP_NO_INTERRUPT,
+	.module		= THIS_MODULE,
 };
 
 static struct pmu cstate_pkg_pmu = {
@@ -447,6 +448,7 @@ static struct pmu cstate_pkg_pmu = {
 	.stop		= cstate_pmu_event_stop,
 	.read		= cstate_pmu_event_update,
 	.capabilities	= PERF_PMU_CAP_NO_INTERRUPT,
+	.module		= THIS_MODULE,
 };
 
 static const struct cstate_model nhm_cstates __initconst = {
@@ -594,6 +596,9 @@ static int __init cstate_probe(const str
 
 static inline void cstate_cleanup(void)
 {
+	cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_CSTATE_ONLINE);
+	cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_CSTATE_STARTING);
+
 	if (has_cstate_core)
 		perf_pmu_unregister(&cstate_core_pmu);
 
@@ -606,16 +611,16 @@ static int __init cstate_init(void)
 	int err;
 
 	cpuhp_setup_state(CPUHP_AP_PERF_X86_CSTATE_STARTING,
-			  "AP_PERF_X86_CSTATE_STARTING", cstate_cpu_init,
-			  NULL);
+			  "perf/x86/cstate:starting", cstate_cpu_init, NULL);
 	cpuhp_setup_state(CPUHP_AP_PERF_X86_CSTATE_ONLINE,
-			  "AP_PERF_X86_CSTATE_ONLINE", NULL, cstate_cpu_exit);
+			  "perf/x86/cstate:online", NULL, cstate_cpu_exit);
 
 	if (has_cstate_core) {
 		err = perf_pmu_register(&cstate_core_pmu, cstate_core_pmu.name, -1);
 		if (err) {
 			has_cstate_core = false;
 			pr_info("Failed to register cstate core pmu\n");
+			cstate_cleanup();
 			return err;
 		}
 	}
@@ -629,8 +634,7 @@ static int __init cstate_init(void)
 			return err;
 		}
 	}
-
-	return err;
+	return 0;
 }
 
 static int __init cstate_pmu_init(void)
@@ -655,8 +659,6 @@ module_init(cstate_pmu_init);
 
 static void __exit cstate_pmu_exit(void)
 {
-	cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_CSTATE_ONLINE);
-	cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_CSTATE_STARTING);
 	cstate_cleanup();
 }
 module_exit(cstate_pmu_exit);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/intel/lbr.c linux-libre-4.9.52-gnu/arch/x86/events/intel/lbr.c
--- linux-libre-4.9-gnu/arch/x86/events/intel/lbr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/intel/lbr.c	2017-09-27 08:40:05.000000000 -0400
@@ -507,6 +507,9 @@ static void intel_pmu_lbr_read_32(struct
 		cpuc->lbr_entries[i].to		= msr_lastbranch.to;
 		cpuc->lbr_entries[i].mispred	= 0;
 		cpuc->lbr_entries[i].predicted	= 0;
+		cpuc->lbr_entries[i].in_tx	= 0;
+		cpuc->lbr_entries[i].abort	= 0;
+		cpuc->lbr_entries[i].cycles	= 0;
 		cpuc->lbr_entries[i].reserved	= 0;
 	}
 	cpuc->lbr_stack.nr = i;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/intel/pt.c linux-libre-4.9.52-gnu/arch/x86/events/intel/pt.c
--- linux-libre-4.9-gnu/arch/x86/events/intel/pt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/intel/pt.c	2017-09-27 08:40:05.000000000 -0400
@@ -106,18 +106,24 @@ static struct attribute_group pt_cap_gro
 };
 
 PMU_FORMAT_ATTR(cyc,		"config:1"	);
+PMU_FORMAT_ATTR(pwr_evt,	"config:4"	);
+PMU_FORMAT_ATTR(fup_on_ptw,	"config:5"	);
 PMU_FORMAT_ATTR(mtc,		"config:9"	);
 PMU_FORMAT_ATTR(tsc,		"config:10"	);
 PMU_FORMAT_ATTR(noretcomp,	"config:11"	);
+PMU_FORMAT_ATTR(ptw,		"config:12"	);
 PMU_FORMAT_ATTR(mtc_period,	"config:14-17"	);
 PMU_FORMAT_ATTR(cyc_thresh,	"config:19-22"	);
 PMU_FORMAT_ATTR(psb_period,	"config:24-27"	);
 
 static struct attribute *pt_formats_attr[] = {
 	&format_attr_cyc.attr,
+	&format_attr_pwr_evt.attr,
+	&format_attr_fup_on_ptw.attr,
 	&format_attr_mtc.attr,
 	&format_attr_tsc.attr,
 	&format_attr_noretcomp.attr,
+	&format_attr_ptw.attr,
 	&format_attr_mtc_period.attr,
 	&format_attr_cyc_thresh.attr,
 	&format_attr_psb_period.attr,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/intel/rapl.c linux-libre-4.9.52-gnu/arch/x86/events/intel/rapl.c
--- linux-libre-4.9-gnu/arch/x86/events/intel/rapl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/intel/rapl.c	2017-09-27 08:40:05.000000000 -0400
@@ -161,7 +161,13 @@ static u64 rapl_timer_ms;
 
 static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
 {
-	return rapl_pmus->pmus[topology_logical_package_id(cpu)];
+	unsigned int pkgid = topology_logical_package_id(cpu);
+
+	/*
+	 * The unsigned check also catches the '-1' return value for non
+	 * existent mappings in the topology map.
+	 */
+	return pkgid < rapl_pmus->maxpkg ? rapl_pmus->pmus[pkgid] : NULL;
 }
 
 static inline u64 rapl_read_counter(struct perf_event *event)
@@ -402,6 +408,8 @@ static int rapl_pmu_event_init(struct pe
 
 	/* must be done before validate_group */
 	pmu = cpu_to_rapl_pmu(event->cpu);
+	if (!pmu)
+		return -EINVAL;
 	event->cpu = pmu->cpu;
 	event->pmu_private = pmu;
 	event->hw.event_base = msr;
@@ -585,6 +593,19 @@ static int rapl_cpu_online(unsigned int
 	struct rapl_pmu *pmu = cpu_to_rapl_pmu(cpu);
 	int target;
 
+	if (!pmu) {
+		pmu = kzalloc_node(sizeof(*pmu), GFP_KERNEL, cpu_to_node(cpu));
+		if (!pmu)
+			return -ENOMEM;
+
+		raw_spin_lock_init(&pmu->lock);
+		INIT_LIST_HEAD(&pmu->active_list);
+		pmu->pmu = &rapl_pmus->pmu;
+		pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
+		rapl_hrtimer_init(pmu);
+
+		rapl_pmus->pmus[topology_logical_package_id(cpu)] = pmu;
+	}
 	/*
 	 * Check if there is an online cpu in the package which collects rapl
 	 * events already.
@@ -598,27 +619,6 @@ static int rapl_cpu_online(unsigned int
 	return 0;
 }
 
-static int rapl_cpu_prepare(unsigned int cpu)
-{
-	struct rapl_pmu *pmu = cpu_to_rapl_pmu(cpu);
-
-	if (pmu)
-		return 0;
-
-	pmu = kzalloc_node(sizeof(*pmu), GFP_KERNEL, cpu_to_node(cpu));
-	if (!pmu)
-		return -ENOMEM;
-
-	raw_spin_lock_init(&pmu->lock);
-	INIT_LIST_HEAD(&pmu->active_list);
-	pmu->pmu = &rapl_pmus->pmu;
-	pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
-	pmu->cpu = -1;
-	rapl_hrtimer_init(pmu);
-	rapl_pmus->pmus[topology_logical_package_id(cpu)] = pmu;
-	return 0;
-}
-
 static int rapl_check_hw_unit(bool apply_quirk)
 {
 	u64 msr_rapl_power_unit_bits;
@@ -697,6 +697,7 @@ static int __init init_rapl_pmus(void)
 	rapl_pmus->pmu.start		= rapl_pmu_event_start;
 	rapl_pmus->pmu.stop		= rapl_pmu_event_stop;
 	rapl_pmus->pmu.read		= rapl_pmu_event_read;
+	rapl_pmus->pmu.module		= THIS_MODULE;
 	return 0;
 }
 
@@ -759,7 +760,7 @@ static const struct x86_cpu_id rapl_cpu_
 
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_CORE,   hsw_rapl_init),
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_GT3E,   hsw_rapl_init),
-	X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_X,	  hsw_rapl_init),
+	X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_X,	  hsx_rapl_init),
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_XEON_D, hsw_rapl_init),
 
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNL, knl_rapl_init),
@@ -803,28 +804,21 @@ static int __init rapl_pmu_init(void)
 	 * Install callbacks. Core will call them for each online cpu.
 	 */
 
-	ret = cpuhp_setup_state(CPUHP_PERF_X86_RAPL_PREP, "PERF_X86_RAPL_PREP",
-				rapl_cpu_prepare, NULL);
-	if (ret)
-		goto out;
-
 	ret = cpuhp_setup_state(CPUHP_AP_PERF_X86_RAPL_ONLINE,
 				"AP_PERF_X86_RAPL_ONLINE",
 				rapl_cpu_online, rapl_cpu_offline);
 	if (ret)
-		goto out1;
+		goto out;
 
 	ret = perf_pmu_register(&rapl_pmus->pmu, "power", -1);
 	if (ret)
-		goto out2;
+		goto out1;
 
 	rapl_advertise();
 	return 0;
 
-out2:
-	cpuhp_remove_state(CPUHP_AP_PERF_X86_RAPL_ONLINE);
 out1:
-	cpuhp_remove_state(CPUHP_PERF_X86_RAPL_PREP);
+	cpuhp_remove_state(CPUHP_AP_PERF_X86_RAPL_ONLINE);
 out:
 	pr_warn("Initialization failed (%d), disabled\n", ret);
 	cleanup_rapl_pmus();
@@ -835,7 +829,6 @@ module_init(rapl_pmu_init);
 static void __exit intel_rapl_exit(void)
 {
 	cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_RAPL_ONLINE);
-	cpuhp_remove_state_nocalls(CPUHP_PERF_X86_RAPL_PREP);
 	perf_pmu_unregister(&rapl_pmus->pmu);
 	cleanup_rapl_pmus();
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/intel/uncore.c linux-libre-4.9.52-gnu/arch/x86/events/intel/uncore.c
--- linux-libre-4.9-gnu/arch/x86/events/intel/uncore.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/intel/uncore.c	2017-09-27 08:40:05.000000000 -0400
@@ -733,6 +733,7 @@ static int uncore_pmu_register(struct in
 			.start		= uncore_pmu_event_start,
 			.stop		= uncore_pmu_event_stop,
 			.read		= uncore_pmu_event_read,
+			.module		= THIS_MODULE,
 		};
 	} else {
 		pmu->pmu = *pmu->type->pmu;
@@ -763,30 +764,6 @@ static void uncore_pmu_unregister(struct
 	pmu->registered = false;
 }
 
-static void __uncore_exit_boxes(struct intel_uncore_type *type, int cpu)
-{
-	struct intel_uncore_pmu *pmu = type->pmus;
-	struct intel_uncore_box *box;
-	int i, pkg;
-
-	if (pmu) {
-		pkg = topology_physical_package_id(cpu);
-		for (i = 0; i < type->num_boxes; i++, pmu++) {
-			box = pmu->boxes[pkg];
-			if (box)
-				uncore_box_exit(box);
-		}
-	}
-}
-
-static void uncore_exit_boxes(void *dummy)
-{
-	struct intel_uncore_type **types;
-
-	for (types = uncore_msr_uncores; *types; types++)
-		__uncore_exit_boxes(*types++, smp_processor_id());
-}
-
 static void uncore_free_boxes(struct intel_uncore_pmu *pmu)
 {
 	int pkg;
@@ -1077,22 +1054,12 @@ static int uncore_cpu_dying(unsigned int
 	return 0;
 }
 
-static int first_init;
-
 static int uncore_cpu_starting(unsigned int cpu)
 {
 	struct intel_uncore_type *type, **types = uncore_msr_uncores;
 	struct intel_uncore_pmu *pmu;
 	struct intel_uncore_box *box;
-	int i, pkg, ncpus = 1;
-
-	if (first_init) {
-		/*
-		 * On init we get the number of online cpus in the package
-		 * and set refcount for all of them.
-		 */
-		ncpus = cpumask_weight(topology_core_cpumask(cpu));
-	}
+	int i, pkg;
 
 	pkg = topology_logical_package_id(cpu);
 	for (; *types; types++) {
@@ -1103,7 +1070,7 @@ static int uncore_cpu_starting(unsigned
 			if (!box)
 				continue;
 			/* The first cpu on a package activates the box */
-			if (atomic_add_return(ncpus, &box->refcnt) == ncpus)
+			if (atomic_inc_return(&box->refcnt) == 1)
 				uncore_box_init(box);
 		}
 	}
@@ -1407,19 +1374,17 @@ static int __init intel_uncore_init(void
 					  "PERF_X86_UNCORE_PREP",
 					  uncore_cpu_prepare, NULL);
 	}
-	first_init = 1;
+
 	cpuhp_setup_state(CPUHP_AP_PERF_X86_UNCORE_STARTING,
 			  "AP_PERF_X86_UNCORE_STARTING",
 			  uncore_cpu_starting, uncore_cpu_dying);
-	first_init = 0;
+
 	cpuhp_setup_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE,
 			  "AP_PERF_X86_UNCORE_ONLINE",
 			  uncore_event_cpu_online, uncore_event_cpu_offline);
 	return 0;
 
 err:
-	/* Undo box->init_box() */
-	on_each_cpu_mask(&uncore_cpu_mask, uncore_exit_boxes, NULL, 1);
 	uncore_types_exit(uncore_msr_uncores);
 	uncore_pci_exit();
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/intel/uncore_snbep.c linux-libre-4.9.52-gnu/arch/x86/events/intel/uncore_snbep.c
--- linux-libre-4.9-gnu/arch/x86/events/intel/uncore_snbep.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/intel/uncore_snbep.c	2017-09-27 08:40:05.000000000 -0400
@@ -2686,7 +2686,7 @@ static struct intel_uncore_type *hswep_m
 
 void hswep_uncore_cpu_init(void)
 {
-	int pkg = topology_phys_to_logical_pkg(0);
+	int pkg = boot_cpu_data.logical_proc_id;
 
 	if (hswep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
 		hswep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/events/perf_event.h linux-libre-4.9.52-gnu/arch/x86/events/perf_event.h
--- linux-libre-4.9-gnu/arch/x86/events/perf_event.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/events/perf_event.h	2017-09-27 08:40:05.000000000 -0400
@@ -604,7 +604,7 @@ struct x86_pmu {
 	u64		lbr_sel_mask;		   /* LBR_SELECT valid bits */
 	const int	*lbr_sel_map;		   /* lbr_select mappings */
 	bool		lbr_double_abort;	   /* duplicated lbr aborts */
-	bool		lbr_pt_coexist;		   /* LBR may coexist with PT */
+	bool		lbr_pt_coexist;		   /* (LBR|BTS) may coexist with PT */
 
 	/*
 	 * Intel PT/LBR/BTS are exclusive
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/asm-prototypes.h linux-libre-4.9.52-gnu/arch/x86/include/asm/asm-prototypes.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/asm-prototypes.h	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/asm-prototypes.h	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,16 @@
+#include <asm/ftrace.h>
+#include <asm/uaccess.h>
+#include <asm/string.h>
+#include <asm/page.h>
+#include <asm/checksum.h>
+
+#include <asm-generic/asm-prototypes.h>
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/special_insns.h>
+#include <asm/preempt.h>
+
+#ifndef CONFIG_X86_CMPXCHG64
+extern void cmpxchg8b_emu(void);
+#endif
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/cpufeatures.h linux-libre-4.9.52-gnu/arch/x86/include/asm/cpufeatures.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/cpufeatures.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/cpufeatures.h	2017-09-27 08:40:05.000000000 -0400
@@ -311,4 +311,6 @@
 #define X86_BUG_NULL_SEG	X86_BUG(10) /* Nulling a selector preserves the base */
 #define X86_BUG_SWAPGS_FENCE	X86_BUG(11) /* SWAPGS without input dep on GS */
 #define X86_BUG_MONITOR		X86_BUG(12) /* IPI required to wake up remote CPU */
+#define X86_BUG_AMD_E400	X86_BUG(13) /* CPU is among the affected by Erratum 400 */
+
 #endif /* _ASM_X86_CPUFEATURES_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/elf.h linux-libre-4.9.52-gnu/arch/x86/include/asm/elf.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/elf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/elf.h	2017-09-27 08:40:05.000000000 -0400
@@ -204,6 +204,7 @@ void set_personality_ia32(bool);
 
 #define ELF_CORE_COPY_REGS(pr_reg, regs)			\
 do {								\
+	unsigned long base;					\
 	unsigned v;						\
 	(pr_reg)[0] = (regs)->r15;				\
 	(pr_reg)[1] = (regs)->r14;				\
@@ -226,8 +227,8 @@ do {								\
 	(pr_reg)[18] = (regs)->flags;				\
 	(pr_reg)[19] = (regs)->sp;				\
 	(pr_reg)[20] = (regs)->ss;				\
-	(pr_reg)[21] = current->thread.fsbase;			\
-	(pr_reg)[22] = current->thread.gsbase;			\
+	rdmsrl(MSR_FS_BASE, base); (pr_reg)[21] = base;		\
+	rdmsrl(MSR_KERNEL_GS_BASE, base); (pr_reg)[22] = base;	\
 	asm("movl %%ds,%0" : "=r" (v)); (pr_reg)[23] = v;	\
 	asm("movl %%es,%0" : "=r" (v)); (pr_reg)[24] = v;	\
 	asm("movl %%fs,%0" : "=r" (v)); (pr_reg)[25] = v;	\
@@ -245,12 +246,13 @@ extern int force_personality32;
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	4096
 
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE		(TASK_SIZE / 3 * 2)
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE		(mmap_is_ia32() ? 0x000400000UL : \
+						  (TASK_SIZE / 3 * 2))
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
@@ -278,7 +280,7 @@ struct task_struct;
 
 #define	ARCH_DLINFO_IA32						\
 do {									\
-	if (vdso32_enabled) {						\
+	if (VDSO_CURRENT_BASE) {					\
 		NEW_AUX_ENT(AT_SYSINFO,	VDSO_ENTRY);			\
 		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE);	\
 	}								\
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/io.h linux-libre-4.9.52-gnu/arch/x86/include/asm/io.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/io.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/io.h	2017-09-27 08:40:05.000000000 -0400
@@ -304,13 +304,13 @@ static inline unsigned type in##bwl##_p(
 static inline void outs##bwl(int port, const void *addr, unsigned long count) \
 {									\
 	asm volatile("rep; outs" #bwl					\
-		     : "+S"(addr), "+c"(count) : "d"(port));		\
+		     : "+S"(addr), "+c"(count) : "d"(port) : "memory");	\
 }									\
 									\
 static inline void ins##bwl(int port, void *addr, unsigned long count)	\
 {									\
 	asm volatile("rep; ins" #bwl					\
-		     : "+D"(addr), "+c"(count) : "d"(port));		\
+		     : "+D"(addr), "+c"(count) : "d"(port) : "memory");	\
 }
 
 BUILDIO(b, b, char)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/kvm_emulate.h linux-libre-4.9.52-gnu/arch/x86/include/asm/kvm_emulate.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/kvm_emulate.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/kvm_emulate.h	2017-09-27 08:40:05.000000000 -0400
@@ -221,6 +221,9 @@ struct x86_emulate_ops {
 	void (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
 			  u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
 	void (*set_nmi_mask)(struct x86_emulate_ctxt *ctxt, bool masked);
+
+	unsigned (*get_hflags)(struct x86_emulate_ctxt *ctxt);
+	void (*set_hflags)(struct x86_emulate_ctxt *ctxt, unsigned hflags);
 };
 
 typedef u32 __attribute__((vector_size(16))) sse128_t;
@@ -290,7 +293,6 @@ struct x86_emulate_ctxt {
 
 	/* interruptibility state, as a result of execution of STI or MOV SS */
 	int interruptibility;
-	int emul_flags;
 
 	bool perm_ok; /* do not check permissions if true */
 	bool ud;	/* inject an #UD if host doesn't support insn */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/kvm_page_track.h linux-libre-4.9.52-gnu/arch/x86/include/asm/kvm_page_track.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/kvm_page_track.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/kvm_page_track.h	2017-09-27 08:40:05.000000000 -0400
@@ -35,6 +35,7 @@ struct kvm_page_track_notifier_node {
 };
 
 void kvm_page_track_init(struct kvm *kvm);
+void kvm_page_track_cleanup(struct kvm *kvm);
 
 void kvm_page_track_free_memslot(struct kvm_memory_slot *free,
 				 struct kvm_memory_slot *dont);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/mce.h linux-libre-4.9.52-gnu/arch/x86/include/asm/mce.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/mce.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/mce.h	2017-09-27 08:40:05.000000000 -0400
@@ -257,6 +257,7 @@ static inline void mce_amd_feature_init(
 #endif
 
 int mce_available(struct cpuinfo_x86 *c);
+bool mce_is_memory_error(struct mce *m);
 
 DECLARE_PER_CPU(unsigned, mce_exception_count);
 DECLARE_PER_CPU(unsigned, mce_poll_count);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/mmu_context.h linux-libre-4.9.52-gnu/arch/x86/include/asm/mmu_context.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/mmu_context.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/mmu_context.h	2017-09-27 08:40:05.000000000 -0400
@@ -116,9 +116,7 @@ static inline int init_new_context(struc
 		mm->context.execute_only_pkey = -1;
 	}
 	#endif
-	init_new_context_ldt(tsk, mm);
-
-	return 0;
+	return init_new_context_ldt(tsk, mm);
 }
 static inline void destroy_context(struct mm_struct *mm)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/msr-index.h linux-libre-4.9.52-gnu/arch/x86/include/asm/msr-index.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/msr-index.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/msr-index.h	2017-09-27 08:40:05.000000000 -0400
@@ -405,6 +405,8 @@
 #define MSR_IA32_TSC_ADJUST             0x0000003b
 #define MSR_IA32_BNDCFGS		0x00000d90
 
+#define MSR_IA32_BNDCFGS_RSVD		0x00000ffc
+
 #define MSR_IA32_XSS			0x00000da0
 
 #define FEATURE_CONTROL_LOCKED				(1<<0)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/pat.h linux-libre-4.9.52-gnu/arch/x86/include/asm/pat.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/pat.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/pat.h	2017-09-27 08:40:05.000000000 -0400
@@ -7,6 +7,7 @@
 bool pat_enabled(void);
 void pat_disable(const char *reason);
 extern void pat_init(void);
+extern void init_cache_modes(void);
 
 extern int reserve_memtype(u64 start, u64 end,
 		enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/pkeys.h linux-libre-4.9.52-gnu/arch/x86/include/asm/pkeys.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/pkeys.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/pkeys.h	2017-09-27 08:40:05.000000000 -0400
@@ -46,6 +46,15 @@ extern int __arch_set_user_pkey_access(s
 static inline
 bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey)
 {
+	/*
+	 * "Allocated" pkeys are those that have been returned
+	 * from pkey_alloc().  pkey 0 is special, and never
+	 * returned from pkey_alloc().
+	 */
+	if (pkey <= 0)
+		return false;
+	if (pkey >= arch_max_pkey())
+		return false;
 	return mm_pkey_allocation_map(mm) & (1U << pkey);
 }
 
@@ -82,12 +91,6 @@ int mm_pkey_alloc(struct mm_struct *mm)
 static inline
 int mm_pkey_free(struct mm_struct *mm, int pkey)
 {
-	/*
-	 * pkey 0 is special, always allocated and can never
-	 * be freed.
-	 */
-	if (!pkey)
-		return -EINVAL;
 	if (!mm_pkey_is_allocated(mm, pkey))
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/pmem.h linux-libre-4.9.52-gnu/arch/x86/include/asm/pmem.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/pmem.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/pmem.h	2017-09-27 08:40:05.000000000 -0400
@@ -55,7 +55,8 @@ static inline int arch_memcpy_from_pmem(
  * @size:	number of bytes to write back
  *
  * Write back a cache range using the CLWB (cache line write back)
- * instruction.
+ * instruction. Note that @size is internally rounded up to be cache
+ * line size aligned.
  */
 static inline void arch_wb_cache_pmem(void *addr, size_t size)
 {
@@ -69,15 +70,6 @@ static inline void arch_wb_cache_pmem(vo
 		clwb(p);
 }
 
-/*
- * copy_from_iter_nocache() on x86 only uses non-temporal stores for iovec
- * iterators, so for other types (bvec & kvec) we must do a cache write-back.
- */
-static inline bool __iter_needs_pmem_wb(struct iov_iter *i)
-{
-	return iter_is_iovec(i) == false;
-}
-
 /**
  * arch_copy_from_iter_pmem - copy data from an iterator to PMEM
  * @addr:	PMEM destination address
@@ -94,7 +86,35 @@ static inline size_t arch_copy_from_iter
 	/* TODO: skip the write-back by always using non-temporal stores */
 	len = copy_from_iter_nocache(addr, bytes, i);
 
-	if (__iter_needs_pmem_wb(i))
+	/*
+	 * In the iovec case on x86_64 copy_from_iter_nocache() uses
+	 * non-temporal stores for the bulk of the transfer, but we need
+	 * to manually flush if the transfer is unaligned. A cached
+	 * memory copy is used when destination or size is not naturally
+	 * aligned. That is:
+	 *   - Require 8-byte alignment when size is 8 bytes or larger.
+	 *   - Require 4-byte alignment when size is 4 bytes.
+	 *
+	 * In the non-iovec case the entire destination needs to be
+	 * flushed.
+	 */
+	if (iter_is_iovec(i)) {
+		unsigned long flushed, dest = (unsigned long) addr;
+
+		if (bytes < 8) {
+			if (!IS_ALIGNED(dest, 4) || (bytes != 4))
+				arch_wb_cache_pmem(addr, bytes);
+		} else {
+			if (!IS_ALIGNED(dest, 8)) {
+				dest = ALIGN(dest, boot_cpu_data.x86_clflush_size);
+				arch_wb_cache_pmem(addr, 1);
+			}
+
+			flushed = dest - (unsigned long) addr;
+			if (bytes > flushed && !IS_ALIGNED(bytes - flushed, 8))
+				arch_wb_cache_pmem(addr + bytes - 1, 1);
+		}
+	} else
 		arch_wb_cache_pmem(addr, bytes);
 
 	return len;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/processor.h linux-libre-4.9.52-gnu/arch/x86/include/asm/processor.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/processor.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/processor.h	2017-09-27 08:40:05.000000000 -0400
@@ -104,6 +104,7 @@ struct cpuinfo_x86 {
 	__u8			x86_phys_bits;
 	/* CPUID returned core id bits: */
 	__u8			x86_coreid_bits;
+	__u8			cu_id;
 	/* Max extended CPUID function supported: */
 	__u32			extended_cpuid_level;
 	/* Maximum supported CPUID level, -1=no CPUID: */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/tlbflush.h linux-libre-4.9.52-gnu/arch/x86/include/asm/tlbflush.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/tlbflush.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/tlbflush.h	2017-09-27 08:40:05.000000000 -0400
@@ -188,7 +188,7 @@ static inline void __native_flush_tlb_si
 
 static inline void __flush_tlb_all(void)
 {
-	if (static_cpu_has(X86_FEATURE_PGE))
+	if (boot_cpu_has(X86_FEATURE_PGE))
 		__flush_tlb_global();
 	else
 		__flush_tlb();
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/uaccess.h linux-libre-4.9.52-gnu/arch/x86/include/asm/uaccess.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/uaccess.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/uaccess.h	2017-09-27 08:40:05.000000000 -0400
@@ -315,10 +315,10 @@ do {									\
 #define __get_user_asm_u64(x, ptr, retval, errret)			\
 ({									\
 	__typeof__(ptr) __ptr = (ptr);					\
-	asm volatile(ASM_STAC "\n"					\
+	asm volatile("\n"					\
 		     "1:	movl %2,%%eax\n"			\
 		     "2:	movl %3,%%edx\n"			\
-		     "3: " ASM_CLAC "\n"				\
+		     "3:\n"				\
 		     ".section .fixup,\"ax\"\n"				\
 		     "4:	mov %4,%0\n"				\
 		     "	xorl %%eax,%%eax\n"				\
@@ -327,7 +327,7 @@ do {									\
 		     ".previous\n"					\
 		     _ASM_EXTABLE(1b, 4b)				\
 		     _ASM_EXTABLE(2b, 4b)				\
-		     : "=r" (retval), "=A"(x)				\
+		     : "=r" (retval), "=&A"(x)				\
 		     : "m" (__m(__ptr)), "m" __m(((u32 *)(__ptr)) + 1),	\
 		       "i" (errret), "0" (retval));			\
 })
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/xen/events.h linux-libre-4.9.52-gnu/arch/x86/include/asm/xen/events.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/xen/events.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/xen/events.h	2017-09-27 08:40:05.000000000 -0400
@@ -20,4 +20,15 @@ static inline int xen_irqs_disabled(stru
 /* No need for a barrier -- XCHG is a barrier on x86. */
 #define xchg_xen_ulong(ptr, val) xchg((ptr), (val))
 
+extern int xen_have_vector_callback;
+
+/*
+ * Events delivered via platform PCI interrupts are always
+ * routed to vcpu 0 and hence cannot be rebound.
+ */
+static inline bool xen_support_evtchn_rebind(void)
+{
+	return (!xen_hvm_domain() || xen_have_vector_callback);
+}
+
 #endif /* _ASM_X86_XEN_EVENTS_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/asm/xen/hypercall.h linux-libre-4.9.52-gnu/arch/x86/include/asm/xen/hypercall.h
--- linux-libre-4.9-gnu/arch/x86/include/asm/xen/hypercall.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/asm/xen/hypercall.h	2017-09-27 08:40:05.000000000 -0400
@@ -43,6 +43,7 @@
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
+#include <asm/smap.h>
 
 #include <xen/interface/xen.h>
 #include <xen/interface/sched.h>
@@ -214,10 +215,12 @@ privcmd_call(unsigned call,
 	__HYPERCALL_DECLS;
 	__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
 
+	stac();
 	asm volatile("call *%[call]"
 		     : __HYPERCALL_5PARAM
 		     : [call] "a" (&hypercall_page[call])
 		     : __HYPERCALL_CLOBBER5);
+	clac();
 
 	return (long)__res;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/include/uapi/asm/prctl.h linux-libre-4.9.52-gnu/arch/x86/include/uapi/asm/prctl.h
--- linux-libre-4.9-gnu/arch/x86/include/uapi/asm/prctl.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/include/uapi/asm/prctl.h	2017-09-27 08:40:05.000000000 -0400
@@ -6,10 +6,8 @@
 #define ARCH_GET_FS 0x1003
 #define ARCH_GET_GS 0x1004
 
-#ifdef CONFIG_CHECKPOINT_RESTORE
-# define ARCH_MAP_VDSO_X32	0x2001
-# define ARCH_MAP_VDSO_32	0x2002
-# define ARCH_MAP_VDSO_64	0x2003
-#endif
+#define ARCH_MAP_VDSO_X32	0x2001
+#define ARCH_MAP_VDSO_32	0x2002
+#define ARCH_MAP_VDSO_64	0x2003
 
 #endif /* _ASM_X86_PRCTL_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/acpi/boot.c linux-libre-4.9.52-gnu/arch/x86/kernel/acpi/boot.c
--- linux-libre-4.9-gnu/arch/x86/kernel/acpi/boot.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/acpi/boot.c	2017-09-27 08:40:05.000000000 -0400
@@ -338,6 +338,14 @@ static void __init mp_override_legacy_ir
 	struct mpc_intsrc mp_irq;
 
 	/*
+	 * Check bus_irq boundary.
+	 */
+	if (bus_irq >= NR_IRQS_LEGACY) {
+		pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq);
+		return;
+	}
+
+	/*
 	 * Convert 'gsi' to 'ioapic.pin'.
 	 */
 	ioapic = mp_find_ioapic(gsi);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/apic/apic.c linux-libre-4.9.52-gnu/arch/x86/kernel/apic/apic.c
--- linux-libre-4.9-gnu/arch/x86/kernel/apic/apic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/apic/apic.c	2017-09-27 08:40:05.000000000 -0400
@@ -2159,21 +2159,6 @@ int __generic_processor_info(int apicid,
 	}
 
 	/*
-	 * This can happen on physical hotplug. The sanity check at boot time
-	 * is done from native_smp_prepare_cpus() after num_possible_cpus() is
-	 * established.
-	 */
-	if (topology_update_package_map(apicid, cpu) < 0) {
-		int thiscpu = max + disabled_cpus;
-
-		pr_warning("APIC: Package limit reached. Processor %d/0x%x ignored.\n",
-			   thiscpu, apicid);
-
-		disabled_cpus++;
-		return -ENOSPC;
-	}
-
-	/*
 	 * Validate version
 	 */
 	if (version == 0x0) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/apic/io_apic.c linux-libre-4.9.52-gnu/arch/x86/kernel/apic/io_apic.c
--- linux-libre-4.9-gnu/arch/x86/kernel/apic/io_apic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/apic/io_apic.c	2017-09-27 08:40:05.000000000 -0400
@@ -1876,6 +1876,7 @@ static struct irq_chip ioapic_chip __rea
 	.irq_ack		= irq_chip_ack_parent,
 	.irq_eoi		= ioapic_ack_level,
 	.irq_set_affinity	= ioapic_set_affinity,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
 	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
@@ -1887,6 +1888,7 @@ static struct irq_chip ioapic_ir_chip __
 	.irq_ack		= irq_chip_ack_parent,
 	.irq_eoi		= ioapic_ir_ack_level,
 	.irq_set_affinity	= ioapic_set_affinity,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
 	.flags			= IRQCHIP_SKIP_SET_WAKE,
 };
 
@@ -2114,8 +2116,9 @@ static inline void __init check_timer(vo
 			int idx;
 			idx = find_irq_entry(apic1, pin1, mp_INT);
 			if (idx != -1 && irq_trigger(idx))
-				unmask_ioapic_irq(irq_get_chip_data(0));
+				unmask_ioapic_irq(irq_get_irq_data(0));
 		}
+		irq_domain_deactivate_irq(irq_data);
 		irq_domain_activate_irq(irq_data);
 		if (timer_irq_works()) {
 			if (disable_timer_pin_1 > 0)
@@ -2137,6 +2140,7 @@ static inline void __init check_timer(vo
 		 * legacy devices should be connected to IO APIC #0
 		 */
 		replace_pin_at_irq_node(data, node, apic1, pin1, apic2, pin2);
+		irq_domain_deactivate_irq(irq_data);
 		irq_domain_activate_irq(irq_data);
 		legacy_pic->unmask(0);
 		if (timer_irq_works()) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/cpu/amd.c linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/amd.c
--- linux-libre-4.9-gnu/arch/x86/kernel/cpu/amd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/amd.c	2017-09-27 08:40:05.000000000 -0400
@@ -20,6 +20,10 @@
 
 #include "cpu.h"
 
+static const int amd_erratum_383[];
+static const int amd_erratum_400[];
+static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum);
+
 /*
  * nodes_per_socket: Stores the number of nodes per socket.
  * Refer to Fam15h Models 00-0fh BKDG - CPUID Fn8000_001E_ECX
@@ -308,17 +312,43 @@ static void amd_get_topology(struct cpui
 		u32 eax, ebx, ecx, edx;
 
 		cpuid(0x8000001e, &eax, &ebx, &ecx, &edx);
-		node_id = ecx & 7;
 
-		/* get compute unit information */
-		smp_num_siblings = ((ebx >> 8) & 3) + 1;
-		c->x86_max_cores /= smp_num_siblings;
-		c->cpu_core_id = ebx & 0xff;
+		node_id  = ecx & 0xff;
+		smp_num_siblings = ((ebx >> 8) & 0xff) + 1;
+
+		if (c->x86 == 0x15)
+			c->cu_id = ebx & 0xff;
+
+		if (c->x86 >= 0x17) {
+			c->cpu_core_id = ebx & 0xff;
+
+			if (smp_num_siblings > 1)
+				c->x86_max_cores /= smp_num_siblings;
+		}
+
+		/*
+		 * We may have multiple LLCs if L3 caches exist, so check if we
+		 * have an L3 cache by looking at the L3 cache CPUID leaf.
+		 */
+		if (cpuid_edx(0x80000006)) {
+			if (c->x86 == 0x17) {
+				/*
+				 * LLC is at the core complex level.
+				 * Core complex id is ApicId[3].
+				 */
+				per_cpu(cpu_llc_id, cpu) = c->apicid >> 3;
+			} else {
+				/* LLC is at the node level. */
+				per_cpu(cpu_llc_id, cpu) = node_id;
+			}
+		}
 	} else if (cpu_has(c, X86_FEATURE_NODEID_MSR)) {
 		u64 value;
 
 		rdmsrl(MSR_FAM10H_NODE_ID, value);
 		node_id = value & 7;
+
+		per_cpu(cpu_llc_id, cpu) = node_id;
 	} else
 		return;
 
@@ -329,9 +359,6 @@ static void amd_get_topology(struct cpui
 		set_cpu_cap(c, X86_FEATURE_AMD_DCM);
 		cus_per_node = c->x86_max_cores / nodes_per_socket;
 
-		/* store NodeID, use llc_shared_map to store sibling info */
-		per_cpu(cpu_llc_id, cpu) = node_id;
-
 		/* core id has to be in the [0 .. cores_per_node - 1] range */
 		c->cpu_core_id %= cus_per_node;
 	}
@@ -356,15 +383,6 @@ static void amd_detect_cmp(struct cpuinf
 	/* use socket ID also for last level cache */
 	per_cpu(cpu_llc_id, cpu) = c->phys_proc_id;
 	amd_get_topology(c);
-
-	/*
-	 * Fix percpu cpu_llc_id here as LLC topology is different
-	 * for Fam17h systems.
-	 */
-	 if (c->x86 != 0x17 || !cpuid_edx(0x80000006))
-		return;
-
-	per_cpu(cpu_llc_id, cpu) = c->apicid >> 3;
 #endif
 }
 
@@ -585,11 +603,16 @@ static void early_init_amd(struct cpuinf
 	/* F16h erratum 793, CVE-2013-6885 */
 	if (c->x86 == 0x16 && c->x86_model <= 0xf)
 		msr_set_bit(MSR_AMD64_LS_CFG, 15);
-}
 
-static const int amd_erratum_383[];
-static const int amd_erratum_400[];
-static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum);
+	/*
+	 * Check whether the machine is affected by erratum 400. This is
+	 * used to select the proper idle routine and to enable the check
+	 * whether the machine is affected in arch_post_acpi_init(), which
+	 * sets the X86_BUG_AMD_APIC_C1E bug depending on the MSR check.
+	 */
+	if (cpu_has_amd_erratum(c, amd_erratum_400))
+		set_cpu_bug(c, X86_BUG_AMD_E400);
+}
 
 static void init_amd_k8(struct cpuinfo_x86 *c)
 {
@@ -770,9 +793,6 @@ static void init_amd(struct cpuinfo_x86
 	if (c->x86 > 0x11)
 		set_cpu_cap(c, X86_FEATURE_ARAT);
 
-	if (cpu_has_amd_erratum(c, amd_erratum_400))
-		set_cpu_bug(c, X86_BUG_AMD_APIC_C1E);
-
 	rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
 
 	/* 3DNow or LM implies PREFETCHW */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/cpu/common.c linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/common.c
--- linux-libre-4.9-gnu/arch/x86/kernel/cpu/common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/common.c	2017-09-27 08:40:05.000000000 -0400
@@ -667,13 +667,14 @@ void get_cpu_cap(struct cpuinfo_x86 *c)
 		c->x86_capability[CPUID_1_EDX] = edx;
 	}
 
+	/* Thermal and Power Management Leaf: level 0x00000006 (eax) */
+	if (c->cpuid_level >= 0x00000006)
+		c->x86_capability[CPUID_6_EAX] = cpuid_eax(0x00000006);
+
 	/* Additional Intel-defined flags: level 0x00000007 */
 	if (c->cpuid_level >= 0x00000007) {
 		cpuid_count(0x00000007, 0, &eax, &ebx, &ecx, &edx);
-
 		c->x86_capability[CPUID_7_0_EBX] = ebx;
-
-		c->x86_capability[CPUID_6_EAX] = cpuid_eax(0x00000006);
 		c->x86_capability[CPUID_7_ECX] = ecx;
 	}
 
@@ -979,29 +980,21 @@ static void x86_init_cache_qos(struct cp
 }
 
 /*
- * The physical to logical package id mapping is initialized from the
- * acpi/mptables information. Make sure that CPUID actually agrees with
- * that.
+ * Validate that ACPI/mptables have the same information about the
+ * effective APIC id and update the package map.
  */
-static void sanitize_package_id(struct cpuinfo_x86 *c)
+static void validate_apic_and_package_id(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
-	unsigned int pkg, apicid, cpu = smp_processor_id();
+	unsigned int apicid, cpu = smp_processor_id();
 
 	apicid = apic->cpu_present_to_apicid(cpu);
-	pkg = apicid >> boot_cpu_data.x86_coreid_bits;
 
-	if (apicid != c->initial_apicid) {
-		pr_err(FW_BUG "CPU%u: APIC id mismatch. Firmware: %x CPUID: %x\n",
+	if (apicid != c->apicid) {
+		pr_err(FW_BUG "CPU%u: APIC id mismatch. Firmware: %x APIC: %x\n",
 		       cpu, apicid, c->initial_apicid);
-		c->initial_apicid = apicid;
 	}
-	if (pkg != c->phys_proc_id) {
-		pr_err(FW_BUG "CPU%u: Using firmware package id %u instead of %u\n",
-		       cpu, pkg, c->phys_proc_id);
-		c->phys_proc_id = pkg;
-	}
-	c->logical_proc_id = topology_phys_to_logical_pkg(pkg);
+	BUG_ON(topology_update_package_map(c->phys_proc_id, cpu));
 #else
 	c->logical_proc_id = 0;
 #endif
@@ -1022,6 +1015,7 @@ static void identify_cpu(struct cpuinfo_
 	c->x86_model_id[0] = '\0';  /* Unset */
 	c->x86_max_cores = 1;
 	c->x86_coreid_bits = 0;
+	c->cu_id = 0xff;
 #ifdef CONFIG_X86_64
 	c->x86_clflush_size = 64;
 	c->x86_phys_bits = 36;
@@ -1132,7 +1126,6 @@ static void identify_cpu(struct cpuinfo_
 #ifdef CONFIG_NUMA
 	numa_add_cpu(smp_processor_id());
 #endif
-	sanitize_package_id(c);
 }
 
 /*
@@ -1188,6 +1181,7 @@ void identify_secondary_cpu(struct cpuin
 	enable_sep_cpu();
 #endif
 	mtrr_ap_init();
+	validate_apic_and_package_id(c);
 }
 
 struct msr_range {
@@ -1282,7 +1276,7 @@ static __init int setup_disablecpuid(cha
 {
 	int bit;
 
-	if (get_option(&arg, &bit) && bit < NCAPINTS*32)
+	if (get_option(&arg, &bit) && bit >= 0 && bit < NCAPINTS * 32)
 		setup_clear_cpu_cap(bit);
 	else
 		return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c
--- linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce_amd.c	2017-09-27 08:40:05.000000000 -0400
@@ -59,7 +59,7 @@ static const char * const th_names[] = {
 	"load_store",
 	"insn_fetch",
 	"combined_unit",
-	"",
+	"decode_unit",
 	"northbridge",
 	"execution_unit",
 };
@@ -955,6 +955,9 @@ static int threshold_create_bank(unsigne
 	const char *name = get_name(bank, NULL);
 	int err = 0;
 
+	if (!dev)
+		return -ENODEV;
+
 	if (is_shared_bank(bank)) {
 		nb = node_to_amd_nb(amd_get_nb_id(cpu));
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce.c linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce.c
--- linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce.c	2017-09-27 08:40:05.000000000 -0400
@@ -120,7 +120,7 @@ static void (*quirk_no_way_out)(int bank
  * CPU/chipset specific EDAC code can register a notifier call here to print
  * MCE errors in a human-readable form.
  */
-ATOMIC_NOTIFIER_HEAD(x86_mce_decoder_chain);
+BLOCKING_NOTIFIER_HEAD(x86_mce_decoder_chain);
 
 /* Do initial initialization of a struct mce */
 void mce_setup(struct mce *m)
@@ -213,13 +213,13 @@ void mce_register_decode_chain(struct no
 	if (nb != &mce_srao_nb && nb->priority == INT_MAX)
 		nb->priority -= 1;
 
-	atomic_notifier_chain_register(&x86_mce_decoder_chain, nb);
+	blocking_notifier_chain_register(&x86_mce_decoder_chain, nb);
 }
 EXPORT_SYMBOL_GPL(mce_register_decode_chain);
 
 void mce_unregister_decode_chain(struct notifier_block *nb)
 {
-	atomic_notifier_chain_unregister(&x86_mce_decoder_chain, nb);
+	blocking_notifier_chain_unregister(&x86_mce_decoder_chain, nb);
 }
 EXPORT_SYMBOL_GPL(mce_unregister_decode_chain);
 
@@ -272,8 +272,6 @@ struct mca_msr_regs msr_ops = {
 
 static void print_mce(struct mce *m)
 {
-	int ret = 0;
-
 	pr_emerg(HW_ERR "CPU %d: Machine Check Exception: %Lx Bank %d: %016Lx\n",
 	       m->extcpu, m->mcgstatus, m->bank, m->status);
 
@@ -309,14 +307,6 @@ static void print_mce(struct mce *m)
 		m->cpuvendor, m->cpuid, m->time, m->socketid, m->apicid,
 		cpu_data(m->extcpu).microcode);
 
-	/*
-	 * Print out human-readable details about the MCE error,
-	 * (if the CPU has an implementation for that)
-	 */
-	ret = atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, m);
-	if (ret == NOTIFY_STOP)
-		return;
-
 	pr_emerg_ratelimited(HW_ERR "Run the above through 'mcelog --ascii'\n");
 }
 
@@ -608,16 +598,14 @@ static void mce_read_aux(struct mce *m,
 	}
 }
 
-static bool memory_error(struct mce *m)
+bool mce_is_memory_error(struct mce *m)
 {
-	struct cpuinfo_x86 *c = &boot_cpu_data;
-
-	if (c->x86_vendor == X86_VENDOR_AMD) {
+	if (m->cpuvendor == X86_VENDOR_AMD) {
 		/* ErrCodeExt[20:16] */
 		u8 xec = (m->status >> 16) & 0x1f;
 
 		return (xec == 0x0 || xec == 0x8);
-	} else if (c->x86_vendor == X86_VENDOR_INTEL) {
+	} else if (m->cpuvendor == X86_VENDOR_INTEL) {
 		/*
 		 * Intel SDM Volume 3B - 15.9.2 Compound Error Codes
 		 *
@@ -638,6 +626,7 @@ static bool memory_error(struct mce *m)
 
 	return false;
 }
+EXPORT_SYMBOL_GPL(mce_is_memory_error);
 
 DEFINE_PER_CPU(unsigned, mce_poll_count);
 
@@ -701,7 +690,7 @@ bool machine_check_poll(enum mcp_flags f
 
 		severity = mce_severity(&m, mca_cfg.tolerant, NULL, false);
 
-		if (severity == MCE_DEFERRED_SEVERITY && memory_error(&m))
+		if (severity == MCE_DEFERRED_SEVERITY && mce_is_memory_error(&m))
 			if (m.status & MCI_STATUS_ADDRV)
 				m.severity = severity;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c
--- linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce-genpool.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,7 +85,7 @@ void mce_gen_pool_process(void)
 	head = llist_reverse_order(head);
 	llist_for_each_entry_safe(node, tmp, head, llnode) {
 		mce = &node->mce;
-		atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
+		blocking_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
 		gen_pool_free(mce_evt_pool, (unsigned long)node, sizeof(*node));
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce-internal.h linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce-internal.h
--- linux-libre-4.9-gnu/arch/x86/kernel/cpu/mcheck/mce-internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mcheck/mce-internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -13,7 +13,7 @@ enum severity_level {
 	MCE_PANIC_SEVERITY,
 };
 
-extern struct atomic_notifier_head x86_mce_decoder_chain;
+extern struct blocking_notifier_head x86_mce_decoder_chain;
 
 #define ATTR_LEN		16
 #define INITIAL_CHECK_INTERVAL	5 * 60 /* 5 minutes */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/cpu/mshyperv.c linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mshyperv.c
--- linux-libre-4.9-gnu/arch/x86/kernel/cpu/mshyperv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/cpu/mshyperv.c	2017-09-27 08:40:05.000000000 -0400
@@ -31,6 +31,7 @@
 #include <asm/apic.h>
 #include <asm/timer.h>
 #include <asm/reboot.h>
+#include <asm/nmi.h>
 
 struct ms_hyperv_info ms_hyperv;
 EXPORT_SYMBOL_GPL(ms_hyperv);
@@ -158,6 +159,26 @@ static unsigned char hv_get_nmi_reason(v
 	return 0;
 }
 
+#ifdef CONFIG_X86_LOCAL_APIC
+/*
+ * Prior to WS2016 Debug-VM sends NMIs to all CPUs which makes
+ * it dificult to process CHANNELMSG_UNLOAD in case of crash. Handle
+ * unknown NMI on the first CPU which gets it.
+ */
+static int hv_nmi_unknown(unsigned int val, struct pt_regs *regs)
+{
+	static atomic_t nmi_cpu = ATOMIC_INIT(-1);
+
+	if (!unknown_nmi_panic)
+		return NMI_DONE;
+
+	if (atomic_cmpxchg(&nmi_cpu, -1, raw_smp_processor_id()) != -1)
+		return NMI_HANDLED;
+
+	return NMI_DONE;
+}
+#endif
+
 static void __init ms_hyperv_init_platform(void)
 {
 	/*
@@ -183,6 +204,9 @@ static void __init ms_hyperv_init_platfo
 		pr_info("HyperV: LAPIC Timer Frequency: %#x\n",
 			lapic_timer_frequency);
 	}
+
+	register_nmi_handler(NMI_UNKNOWN, hv_nmi_unknown, NMI_FLAG_FIRST,
+			     "hv_nmi_unknown");
 #endif
 
 	if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/fpu/core.c linux-libre-4.9.52-gnu/arch/x86/kernel/fpu/core.c
--- linux-libre-4.9-gnu/arch/x86/kernel/fpu/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/fpu/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -236,7 +236,8 @@ void fpstate_init(union fpregs_state *st
 	 * it will #GP. Make sure it is replaced after the memset().
 	 */
 	if (static_cpu_has(X86_FEATURE_XSAVES))
-		state->xsave.header.xcomp_bv = XCOMP_BV_COMPACTED_FORMAT;
+		state->xsave.header.xcomp_bv = XCOMP_BV_COMPACTED_FORMAT |
+					       xfeatures_mask;
 
 	if (static_cpu_has(X86_FEATURE_FXSR))
 		fpstate_init_fxstate(&state->fxsave);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/fpu/init.c linux-libre-4.9.52-gnu/arch/x86/kernel/fpu/init.c
--- linux-libre-4.9-gnu/arch/x86/kernel/fpu/init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/fpu/init.c	2017-09-27 08:40:05.000000000 -0400
@@ -101,6 +101,7 @@ static void fpu__init_system_early_gener
  * Boot time FPU feature detection code:
  */
 unsigned int mxcsr_feature_mask __read_mostly = 0xffffffffu;
+EXPORT_SYMBOL_GPL(mxcsr_feature_mask);
 
 static void __init fpu__init_system_mxcsr(void)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/ftrace.c linux-libre-4.9.52-gnu/arch/x86/kernel/ftrace.c
--- linux-libre-4.9-gnu/arch/x86/kernel/ftrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/ftrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -983,6 +983,18 @@ void prepare_ftrace_return(unsigned long
 	unsigned long return_hooker = (unsigned long)
 				&return_to_handler;
 
+	/*
+	 * When resuming from suspend-to-ram, this function can be indirectly
+	 * called from early CPU startup code while the CPU is in real mode,
+	 * which would fail miserably.  Make sure the stack pointer is a
+	 * virtual address.
+	 *
+	 * This check isn't as accurate as virt_addr_valid(), but it should be
+	 * good enough for this purpose, and it's fast.
+	 */
+	if (unlikely((long)__builtin_frame_address(0) >= 0))
+		return;
+
 	if (unlikely(ftrace_graph_is_dead()))
 		return;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/head64.c linux-libre-4.9.52-gnu/arch/x86/kernel/head64.c
--- linux-libre-4.9-gnu/arch/x86/kernel/head64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/head64.c	2017-09-27 08:40:05.000000000 -0400
@@ -4,6 +4,7 @@
  *  Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE
  */
 
+#define DISABLE_BRANCH_PROFILING
 #include <linux/init.h>
 #include <linux/linkage.h>
 #include <linux/types.h>
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/hpet.c linux-libre-4.9.52-gnu/arch/x86/kernel/hpet.c
--- linux-libre-4.9-gnu/arch/x86/kernel/hpet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/hpet.c	2017-09-27 08:40:05.000000000 -0400
@@ -352,6 +352,7 @@ static int hpet_resume(struct clock_even
 	} else {
 		struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);
 
+		irq_domain_deactivate_irq(irq_get_irq_data(hdev->irq));
 		irq_domain_activate_irq(irq_get_irq_data(hdev->irq));
 		disable_irq(hdev->irq);
 		irq_set_affinity(hdev->irq, cpumask_of(hdev->cpu));
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/kprobes/common.h linux-libre-4.9.52-gnu/arch/x86/kernel/kprobes/common.h
--- linux-libre-4.9-gnu/arch/x86/kernel/kprobes/common.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/kprobes/common.h	2017-09-27 08:40:05.000000000 -0400
@@ -67,7 +67,7 @@
 #endif
 
 /* Ensure if the instruction can be boostable */
-extern int can_boost(kprobe_opcode_t *instruction);
+extern int can_boost(kprobe_opcode_t *instruction, void *addr);
 /* Recover instruction if given address is probed */
 extern unsigned long recover_probed_instruction(kprobe_opcode_t *buf,
 					 unsigned long addr);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/kprobes/core.c linux-libre-4.9.52-gnu/arch/x86/kernel/kprobes/core.c
--- linux-libre-4.9-gnu/arch/x86/kernel/kprobes/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/kprobes/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -166,12 +166,12 @@ NOKPROBE_SYMBOL(skip_prefixes);
  * Returns non-zero if opcode is boostable.
  * RIP relative instructions are adjusted at copying time in 64 bits mode
  */
-int can_boost(kprobe_opcode_t *opcodes)
+int can_boost(kprobe_opcode_t *opcodes, void *addr)
 {
 	kprobe_opcode_t opcode;
 	kprobe_opcode_t *orig_opcodes = opcodes;
 
-	if (search_exception_tables((unsigned long)opcodes))
+	if (search_exception_tables((unsigned long)addr))
 		return 0;	/* Page fault may occur on this address. */
 
 retry:
@@ -416,7 +416,7 @@ static int arch_copy_kprobe(struct kprob
 	 * __copy_instruction can modify the displacement of the instruction,
 	 * but it doesn't affect boostable check.
 	 */
-	if (can_boost(p->ainsn.insn))
+	if (can_boost(p->ainsn.insn, p->addr))
 		p->ainsn.boostable = 0;
 	else
 		p->ainsn.boostable = -1;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/kprobes/opt.c linux-libre-4.9.52-gnu/arch/x86/kernel/kprobes/opt.c
--- linux-libre-4.9-gnu/arch/x86/kernel/kprobes/opt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/kprobes/opt.c	2017-09-27 08:40:05.000000000 -0400
@@ -178,7 +178,7 @@ static int copy_optimized_instructions(u
 
 	while (len < RELATIVEJUMP_SIZE) {
 		ret = __copy_instruction(dest + len, src + len);
-		if (!ret || !can_boost(dest + len))
+		if (!ret || !can_boost(dest + len, src + len))
 			return -EINVAL;
 		len += ret;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/kvm.c linux-libre-4.9.52-gnu/arch/x86/kernel/kvm.c
--- linux-libre-4.9-gnu/arch/x86/kernel/kvm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/kvm.c	2017-09-27 08:40:05.000000000 -0400
@@ -152,6 +152,8 @@ void kvm_async_pf_task_wait(u32 token)
 		if (hlist_unhashed(&n.link))
 			break;
 
+		rcu_irq_exit();
+
 		if (!n.halted) {
 			local_irq_enable();
 			schedule();
@@ -160,11 +162,11 @@ void kvm_async_pf_task_wait(u32 token)
 			/*
 			 * We cannot reschedule. So halt.
 			 */
-			rcu_irq_exit();
 			native_safe_halt();
-			rcu_irq_enter();
 			local_irq_disable();
 		}
+
+		rcu_irq_enter();
 	}
 	if (!n.halted)
 		finish_swait(&n.wq, &wait);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/pci-calgary_64.c linux-libre-4.9.52-gnu/arch/x86/kernel/pci-calgary_64.c
--- linux-libre-4.9-gnu/arch/x86/kernel/pci-calgary_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/pci-calgary_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -296,7 +296,7 @@ static void iommu_free(struct iommu_tabl
 
 	/* were we called with bad_dma_address? */
 	badend = DMA_ERROR_CODE + (EMERGENCY_PAGES * PAGE_SIZE);
-	if (unlikely((dma_addr >= DMA_ERROR_CODE) && (dma_addr < badend))) {
+	if (unlikely(dma_addr < badend)) {
 		WARN(1, KERN_ERR "Calgary: driver tried unmapping bad DMA "
 		       "address 0x%Lx\n", dma_addr);
 		return;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/pci-swiotlb.c linux-libre-4.9.52-gnu/arch/x86/kernel/pci-swiotlb.c
--- linux-libre-4.9-gnu/arch/x86/kernel/pci-swiotlb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/pci-swiotlb.c	2017-09-27 08:40:05.000000000 -0400
@@ -70,7 +70,7 @@ int __init pci_swiotlb_detect_override(v
 {
 	int use_swiotlb = swiotlb | swiotlb_force;
 
-	if (swiotlb_force)
+	if (swiotlb_force == SWIOTLB_FORCE)
 		swiotlb = 1;
 
 	return use_swiotlb;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/process_64.c linux-libre-4.9.52-gnu/arch/x86/kernel/process_64.c
--- linux-libre-4.9-gnu/arch/x86/kernel/process_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/process_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -136,6 +136,123 @@ void release_thread(struct task_struct *
 	}
 }
 
+enum which_selector {
+	FS,
+	GS
+};
+
+/*
+ * Saves the FS or GS base for an outgoing thread if FSGSBASE extensions are
+ * not available.  The goal is to be reasonably fast on non-FSGSBASE systems.
+ * It's forcibly inlined because it'll generate better code and this function
+ * is hot.
+ */
+static __always_inline void save_base_legacy(struct task_struct *prev_p,
+					     unsigned short selector,
+					     enum which_selector which)
+{
+	if (likely(selector == 0)) {
+		/*
+		 * On Intel (without X86_BUG_NULL_SEG), the segment base could
+		 * be the pre-existing saved base or it could be zero.  On AMD
+		 * (with X86_BUG_NULL_SEG), the segment base could be almost
+		 * anything.
+		 *
+		 * This branch is very hot (it's hit twice on almost every
+		 * context switch between 64-bit programs), and avoiding
+		 * the RDMSR helps a lot, so we just assume that whatever
+		 * value is already saved is correct.  This matches historical
+		 * Linux behavior, so it won't break existing applications.
+		 *
+		 * To avoid leaking state, on non-X86_BUG_NULL_SEG CPUs, if we
+		 * report that the base is zero, it needs to actually be zero:
+		 * see the corresponding logic in load_seg_legacy.
+		 */
+	} else {
+		/*
+		 * If the selector is 1, 2, or 3, then the base is zero on
+		 * !X86_BUG_NULL_SEG CPUs and could be anything on
+		 * X86_BUG_NULL_SEG CPUs.  In the latter case, Linux
+		 * has never attempted to preserve the base across context
+		 * switches.
+		 *
+		 * If selector > 3, then it refers to a real segment, and
+		 * saving the base isn't necessary.
+		 */
+		if (which == FS)
+			prev_p->thread.fsbase = 0;
+		else
+			prev_p->thread.gsbase = 0;
+	}
+}
+
+static __always_inline void save_fsgs(struct task_struct *task)
+{
+	savesegment(fs, task->thread.fsindex);
+	savesegment(gs, task->thread.gsindex);
+	save_base_legacy(task, task->thread.fsindex, FS);
+	save_base_legacy(task, task->thread.gsindex, GS);
+}
+
+static __always_inline void loadseg(enum which_selector which,
+				    unsigned short sel)
+{
+	if (which == FS)
+		loadsegment(fs, sel);
+	else
+		load_gs_index(sel);
+}
+
+static __always_inline void load_seg_legacy(unsigned short prev_index,
+					    unsigned long prev_base,
+					    unsigned short next_index,
+					    unsigned long next_base,
+					    enum which_selector which)
+{
+	if (likely(next_index <= 3)) {
+		/*
+		 * The next task is using 64-bit TLS, is not using this
+		 * segment at all, or is having fun with arcane CPU features.
+		 */
+		if (next_base == 0) {
+			/*
+			 * Nasty case: on AMD CPUs, we need to forcibly zero
+			 * the base.
+			 */
+			if (static_cpu_has_bug(X86_BUG_NULL_SEG)) {
+				loadseg(which, __USER_DS);
+				loadseg(which, next_index);
+			} else {
+				/*
+				 * We could try to exhaustively detect cases
+				 * under which we can skip the segment load,
+				 * but there's really only one case that matters
+				 * for performance: if both the previous and
+				 * next states are fully zeroed, we can skip
+				 * the load.
+				 *
+				 * (This assumes that prev_base == 0 has no
+				 * false positives.  This is the case on
+				 * Intel-style CPUs.)
+				 */
+				if (likely(prev_index | next_index | prev_base))
+					loadseg(which, next_index);
+			}
+		} else {
+			if (prev_index != next_index)
+				loadseg(which, next_index);
+			wrmsrl(which == FS ? MSR_FS_BASE : MSR_KERNEL_GS_BASE,
+			       next_base);
+		}
+	} else {
+		/*
+		 * The next task is using a real segment.  Loading the selector
+		 * is sufficient.
+		 */
+		loadseg(which, next_index);
+	}
+}
+
 int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
 		unsigned long arg, struct task_struct *p, unsigned long tls)
 {
@@ -216,10 +333,19 @@ start_thread_common(struct pt_regs *regs
 		    unsigned long new_sp,
 		    unsigned int _cs, unsigned int _ss, unsigned int _ds)
 {
+	WARN_ON_ONCE(regs != current_pt_regs());
+
+	if (static_cpu_has(X86_BUG_NULL_SEG)) {
+		/* Loading zero below won't clear the base. */
+		loadsegment(fs, __USER_DS);
+		load_gs_index(__USER_DS);
+	}
+
 	loadsegment(fs, 0);
 	loadsegment(es, _ds);
 	loadsegment(ds, _ds);
 	load_gs_index(0);
+
 	regs->ip		= new_ip;
 	regs->sp		= new_sp;
 	regs->cs		= _cs;
@@ -264,7 +390,6 @@ __switch_to(struct task_struct *prev_p,
 	struct fpu *next_fpu = &next->fpu;
 	int cpu = smp_processor_id();
 	struct tss_struct *tss = &per_cpu(cpu_tss, cpu);
-	unsigned prev_fsindex, prev_gsindex;
 	fpu_switch_t fpu_switch;
 
 	fpu_switch = switch_fpu_prepare(prev_fpu, next_fpu, cpu);
@@ -274,8 +399,7 @@ __switch_to(struct task_struct *prev_p,
 	 *
 	 * (e.g. xen_load_tls())
 	 */
-	savesegment(fs, prev_fsindex);
-	savesegment(gs, prev_gsindex);
+	save_fsgs(prev_p);
 
 	/*
 	 * Load TLS before restoring any segments so that segment loads
@@ -314,108 +438,10 @@ __switch_to(struct task_struct *prev_p,
 	if (unlikely(next->ds | prev->ds))
 		loadsegment(ds, next->ds);
 
-	/*
-	 * Switch FS and GS.
-	 *
-	 * These are even more complicated than DS and ES: they have
-	 * 64-bit bases are that controlled by arch_prctl.  The bases
-	 * don't necessarily match the selectors, as user code can do
-	 * any number of things to cause them to be inconsistent.
-	 *
-	 * We don't promise to preserve the bases if the selectors are
-	 * nonzero.  We also don't promise to preserve the base if the
-	 * selector is zero and the base doesn't match whatever was
-	 * most recently passed to ARCH_SET_FS/GS.  (If/when the
-	 * FSGSBASE instructions are enabled, we'll need to offer
-	 * stronger guarantees.)
-	 *
-	 * As an invariant,
-	 * (fsbase != 0 && fsindex != 0) || (gsbase != 0 && gsindex != 0) is
-	 * impossible.
-	 */
-	if (next->fsindex) {
-		/* Loading a nonzero value into FS sets the index and base. */
-		loadsegment(fs, next->fsindex);
-	} else {
-		if (next->fsbase) {
-			/* Next index is zero but next base is nonzero. */
-			if (prev_fsindex)
-				loadsegment(fs, 0);
-			wrmsrl(MSR_FS_BASE, next->fsbase);
-		} else {
-			/* Next base and index are both zero. */
-			if (static_cpu_has_bug(X86_BUG_NULL_SEG)) {
-				/*
-				 * We don't know the previous base and can't
-				 * find out without RDMSR.  Forcibly clear it.
-				 */
-				loadsegment(fs, __USER_DS);
-				loadsegment(fs, 0);
-			} else {
-				/*
-				 * If the previous index is zero and ARCH_SET_FS
-				 * didn't change the base, then the base is
-				 * also zero and we don't need to do anything.
-				 */
-				if (prev->fsbase || prev_fsindex)
-					loadsegment(fs, 0);
-			}
-		}
-	}
-	/*
-	 * Save the old state and preserve the invariant.
-	 * NB: if prev_fsindex == 0, then we can't reliably learn the base
-	 * without RDMSR because Intel user code can zero it without telling
-	 * us and AMD user code can program any 32-bit value without telling
-	 * us.
-	 */
-	if (prev_fsindex)
-		prev->fsbase = 0;
-	prev->fsindex = prev_fsindex;
-
-	if (next->gsindex) {
-		/* Loading a nonzero value into GS sets the index and base. */
-		load_gs_index(next->gsindex);
-	} else {
-		if (next->gsbase) {
-			/* Next index is zero but next base is nonzero. */
-			if (prev_gsindex)
-				load_gs_index(0);
-			wrmsrl(MSR_KERNEL_GS_BASE, next->gsbase);
-		} else {
-			/* Next base and index are both zero. */
-			if (static_cpu_has_bug(X86_BUG_NULL_SEG)) {
-				/*
-				 * We don't know the previous base and can't
-				 * find out without RDMSR.  Forcibly clear it.
-				 *
-				 * This contains a pointless SWAPGS pair.
-				 * Fixing it would involve an explicit check
-				 * for Xen or a new pvop.
-				 */
-				load_gs_index(__USER_DS);
-				load_gs_index(0);
-			} else {
-				/*
-				 * If the previous index is zero and ARCH_SET_GS
-				 * didn't change the base, then the base is
-				 * also zero and we don't need to do anything.
-				 */
-				if (prev->gsbase || prev_gsindex)
-					load_gs_index(0);
-			}
-		}
-	}
-	/*
-	 * Save the old state and preserve the invariant.
-	 * NB: if prev_gsindex == 0, then we can't reliably learn the base
-	 * without RDMSR because Intel user code can zero it without telling
-	 * us and AMD user code can program any 32-bit value without telling
-	 * us.
-	 */
-	if (prev_gsindex)
-		prev->gsbase = 0;
-	prev->gsindex = prev_gsindex;
+	load_seg_legacy(prev->fsindex, prev->fsbase,
+			next->fsindex, next->fsbase, FS);
+	load_seg_legacy(prev->gsindex, prev->gsbase,
+			next->gsindex, next->gsbase, GS);
 
 	switch_fpu_finish(next_fpu, fpu_switch);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/process.c linux-libre-4.9.52-gnu/arch/x86/kernel/process.c
--- linux-libre-4.9-gnu/arch/x86/kernel/process.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/process.c	2017-09-27 08:40:05.000000000 -0400
@@ -448,8 +448,7 @@ void select_idle_routine(const struct cp
 	if (x86_idle || boot_option_idle_override == IDLE_POLL)
 		return;
 
-	if (cpu_has_bug(c, X86_BUG_AMD_APIC_C1E)) {
-		/* E400: APIC timer interrupt does not wake up CPU from C1e */
+	if (boot_cpu_has_bug(X86_BUG_AMD_E400)) {
 		pr_info("using AMD E400 aware idle routine\n");
 		x86_idle = amd_e400_idle;
 	} else if (prefer_mwait_c1_over_halt(c)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/reboot.c linux-libre-4.9.52-gnu/arch/x86/kernel/reboot.c
--- linux-libre-4.9-gnu/arch/x86/kernel/reboot.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/reboot.c	2017-09-27 08:40:05.000000000 -0400
@@ -223,6 +223,22 @@ static struct dmi_system_id __initdata r
 			DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
 		},
 	},
+	{	/* Handle problems with rebooting on ASUS EeeBook X205TA */
+		.callback = set_acpi_reboot,
+		.ident = "ASUS EeeBook X205TA",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X205TA"),
+		},
+	},
+	{	/* Handle problems with rebooting on ASUS EeeBook X205TAW */
+		.callback = set_acpi_reboot,
+		.ident = "ASUS EeeBook X205TAW",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X205TAW"),
+		},
+	},
 
 	/* Certec */
 	{       /* Handle problems with rebooting on Certec BPC600 */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/setup.c linux-libre-4.9.52-gnu/arch/x86/kernel/setup.c
--- linux-libre-4.9-gnu/arch/x86/kernel/setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -1054,6 +1054,13 @@ void __init setup_arch(char **cmdline_p)
 	max_possible_pfn = max_pfn;
 
 	/*
+	 * This call is required when the CPU does not support PAT. If
+	 * mtrr_bp_init() invoked it already via pat_init() the call has no
+	 * effect.
+	 */
+	init_cache_modes();
+
+	/*
 	 * Define random base addresses for memory sections after max_pfn is
 	 * defined and before each memory section base is used.
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/signal_compat.c linux-libre-4.9.52-gnu/arch/x86/kernel/signal_compat.c
--- linux-libre-4.9-gnu/arch/x86/kernel/signal_compat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/signal_compat.c	2017-09-27 08:40:05.000000000 -0400
@@ -151,8 +151,8 @@ int __copy_siginfo_to_user32(compat_sigi
 
 				if (from->si_signo == SIGSEGV) {
 					if (from->si_code == SEGV_BNDERR) {
-						compat_uptr_t lower = (unsigned long)&to->si_lower;
-						compat_uptr_t upper = (unsigned long)&to->si_upper;
+						compat_uptr_t lower = (unsigned long)from->si_lower;
+						compat_uptr_t upper = (unsigned long)from->si_upper;
 						put_user_ex(lower, &to->si_lower);
 						put_user_ex(upper, &to->si_upper);
 					}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/smpboot.c linux-libre-4.9.52-gnu/arch/x86/kernel/smpboot.c
--- linux-libre-4.9-gnu/arch/x86/kernel/smpboot.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/smpboot.c	2017-09-27 08:40:05.000000000 -0400
@@ -104,7 +104,6 @@ static unsigned int max_physical_pkg_id
 unsigned int __max_logical_packages __read_mostly;
 EXPORT_SYMBOL(__max_logical_packages);
 static unsigned int logical_packages __read_mostly;
-static bool logical_packages_frozen __read_mostly;
 
 /* Maximum number of SMT threads on any online core */
 int __max_smt_threads __read_mostly;
@@ -263,9 +262,14 @@ static void notrace start_secondary(void
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
 }
 
-int topology_update_package_map(unsigned int apicid, unsigned int cpu)
+/**
+ * topology_update_package_map - Update the physical to logical package map
+ * @pkg:	The physical package id as retrieved via CPUID
+ * @cpu:	The cpu for which this is updated
+ */
+int topology_update_package_map(unsigned int pkg, unsigned int cpu)
 {
-	unsigned int new, pkg = apicid >> boot_cpu_data.x86_coreid_bits;
+	unsigned int new;
 
 	/* Called from early boot ? */
 	if (!physical_package_map)
@@ -278,16 +282,17 @@ int topology_update_package_map(unsigned
 	if (test_and_set_bit(pkg, physical_package_map))
 		goto found;
 
-	if (logical_packages_frozen) {
-		physical_to_logical_pkg[pkg] = -1;
-		pr_warn("APIC(%x) Package %u exceeds logical package max\n",
-			apicid, pkg);
+	if (logical_packages >= __max_logical_packages) {
+		pr_warn("Package %u of CPU %u exceeds BIOS package data %u.\n",
+			logical_packages, cpu, __max_logical_packages);
 		return -ENOSPC;
 	}
 
 	new = logical_packages++;
-	pr_info("APIC(%x) Converting physical %u to logical package %u\n",
-		apicid, pkg, new);
+	if (new != pkg) {
+		pr_info("CPU %u Converting physical %u to logical package %u\n",
+			cpu, pkg, new);
+	}
 	physical_to_logical_pkg[pkg] = new;
 
 found:
@@ -308,9 +313,9 @@ int topology_phys_to_logical_pkg(unsigne
 }
 EXPORT_SYMBOL(topology_phys_to_logical_pkg);
 
-static void __init smp_init_package_map(void)
+static void __init smp_init_package_map(struct cpuinfo_x86 *c, unsigned int cpu)
 {
-	unsigned int ncpus, cpu;
+	unsigned int ncpus;
 	size_t size;
 
 	/*
@@ -355,27 +360,9 @@ static void __init smp_init_package_map(
 	size = BITS_TO_LONGS(max_physical_pkg_id) * sizeof(unsigned long);
 	physical_package_map = kzalloc(size, GFP_KERNEL);
 
-	for_each_present_cpu(cpu) {
-		unsigned int apicid = apic->cpu_present_to_apicid(cpu);
-
-		if (apicid == BAD_APICID || !apic->apic_id_valid(apicid))
-			continue;
-		if (!topology_update_package_map(apicid, cpu))
-			continue;
-		pr_warn("CPU %u APICId %x disabled\n", cpu, apicid);
-		per_cpu(x86_bios_cpu_apicid, cpu) = BAD_APICID;
-		set_cpu_possible(cpu, false);
-		set_cpu_present(cpu, false);
-	}
-
-	if (logical_packages > __max_logical_packages) {
-		pr_warn("Detected more packages (%u), then computed by BIOS data (%u).\n",
-			logical_packages, __max_logical_packages);
-		logical_packages_frozen = true;
-		__max_logical_packages  = logical_packages;
-	}
-
 	pr_info("Max logical packages: %u\n", __max_logical_packages);
+
+	topology_update_package_map(c->phys_proc_id, cpu);
 }
 
 void __init smp_store_boot_cpu_info(void)
@@ -385,7 +372,7 @@ void __init smp_store_boot_cpu_info(void
 
 	*c = boot_cpu_data;
 	c->cpu_index = id;
-	smp_init_package_map();
+	smp_init_package_map(c, id);
 }
 
 /*
@@ -436,9 +423,15 @@ static bool match_smt(struct cpuinfo_x86
 		int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
 
 		if (c->phys_proc_id == o->phys_proc_id &&
-		    per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2) &&
-		    c->cpu_core_id == o->cpu_core_id)
-			return topology_sane(c, o, "smt");
+		    per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2)) {
+			if (c->cpu_core_id == o->cpu_core_id)
+				return topology_sane(c, o, "smt");
+
+			if ((c->cu_id != 0xff) &&
+			    (o->cu_id != 0xff) &&
+			    (c->cu_id == o->cu_id))
+				return topology_sane(c, o, "smt");
+		}
 
 	} else if (c->phys_proc_id == o->phys_proc_id &&
 		   c->cpu_core_id == o->cpu_core_id) {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/sys_x86_64.c linux-libre-4.9.52-gnu/arch/x86/kernel/sys_x86_64.c
--- linux-libre-4.9-gnu/arch/x86/kernel/sys_x86_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/sys_x86_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -140,7 +140,7 @@ arch_get_unmapped_area(struct file *filp
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (end - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -183,7 +183,7 @@ arch_get_unmapped_area_topdown(struct fi
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kernel/tsc.c linux-libre-4.9.52-gnu/arch/x86/kernel/tsc.c
--- linux-libre-4.9-gnu/arch/x86/kernel/tsc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kernel/tsc.c	2017-09-27 08:40:05.000000000 -0400
@@ -694,6 +694,7 @@ unsigned long native_calibrate_tsc(void)
 			crystal_khz = 24000;	/* 24.0 MHz */
 			break;
 		case INTEL_FAM6_SKYLAKE_X:
+		case INTEL_FAM6_ATOM_DENVERTON:
 			crystal_khz = 25000;	/* 25.0 MHz */
 			break;
 		case INTEL_FAM6_ATOM_GOLDMONT:
@@ -1287,6 +1288,8 @@ static int __init init_tsc_clocksource(v
 	 * exporting a reliable TSC.
 	 */
 	if (boot_cpu_has(X86_FEATURE_TSC_RELIABLE)) {
+		if (boot_cpu_has(X86_FEATURE_ART))
+			art_related_clocksource = &clocksource_tsc;
 		clocksource_register_khz(&clocksource_tsc, tsc_khz);
 		return 0;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/cpuid.c linux-libre-4.9.52-gnu/arch/x86/kvm/cpuid.c
--- linux-libre-4.9-gnu/arch/x86/kvm/cpuid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/cpuid.c	2017-09-27 08:40:05.000000000 -0400
@@ -456,7 +456,7 @@ static inline int __do_cpuid_ent(struct
 			entry->ecx &= kvm_cpuid_7_0_ecx_x86_features;
 			cpuid_mask(&entry->ecx, CPUID_7_ECX);
 			/* PKU is not yet implemented for shadow paging. */
-			if (!tdp_enabled)
+			if (!tdp_enabled || !boot_cpu_has(X86_FEATURE_OSPKE))
 				entry->ecx &= ~F(PKU);
 		} else {
 			entry->ebx = 0;
@@ -765,18 +765,20 @@ out:
 static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
 {
 	struct kvm_cpuid_entry2 *e = &vcpu->arch.cpuid_entries[i];
-	int j, nent = vcpu->arch.cpuid_nent;
+	struct kvm_cpuid_entry2 *ej;
+	int j = i;
+	int nent = vcpu->arch.cpuid_nent;
 
 	e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
 	/* when no next entry is found, the current entry[i] is reselected */
-	for (j = i + 1; ; j = (j + 1) % nent) {
-		struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
-		if (ej->function == e->function) {
-			ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
-			return j;
-		}
-	}
-	return 0; /* silence gcc, even though control never reaches here */
+	do {
+		j = (j + 1) % nent;
+		ej = &vcpu->arch.cpuid_entries[j];
+	} while (ej->function != e->function);
+
+	ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
+
+	return j;
 }
 
 /* find an entry with matching function, matching index (if needed), and that
@@ -846,12 +848,6 @@ void kvm_cpuid(struct kvm_vcpu *vcpu, u3
 	if (!best)
 		best = check_cpuid_limit(vcpu, function, index);
 
-	/*
-	 * Perfmon not yet supported for L2 guest.
-	 */
-	if (is_guest_mode(vcpu) && function == 0xa)
-		best = NULL;
-
 	if (best) {
 		*eax = best->eax;
 		*ebx = best->ebx;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/cpuid.h linux-libre-4.9.52-gnu/arch/x86/kvm/cpuid.h
--- linux-libre-4.9-gnu/arch/x86/kvm/cpuid.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/cpuid.h	2017-09-27 08:40:05.000000000 -0400
@@ -144,6 +144,14 @@ static inline bool guest_cpuid_has_rtm(s
 	return best && (best->ebx & bit(X86_FEATURE_RTM));
 }
 
+static inline bool guest_cpuid_has_mpx(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 7, 0);
+	return best && (best->ebx & bit(X86_FEATURE_MPX));
+}
+
 static inline bool guest_cpuid_has_rdtscp(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/emulate.c linux-libre-4.9.52-gnu/arch/x86/kvm/emulate.c
--- linux-libre-4.9-gnu/arch/x86/kvm/emulate.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/emulate.c	2017-09-27 08:40:05.000000000 -0400
@@ -171,6 +171,7 @@
 #define NearBranch  ((u64)1 << 52)  /* Near branches */
 #define No16	    ((u64)1 << 53)  /* No 16 bit operand */
 #define IncSP       ((u64)1 << 54)  /* SP is incremented before ModRM calc */
+#define Aligned16   ((u64)1 << 55)  /* Aligned to 16 byte boundary (e.g. FXSAVE) */
 
 #define DstXacc     (DstAccLo | SrcAccHi | SrcWrite)
 
@@ -446,6 +447,26 @@ FOP_END;
 FOP_START(salc) "pushf; sbb %al, %al; popf \n\t" FOP_RET
 FOP_END;
 
+/*
+ * XXX: inoutclob user must know where the argument is being expanded.
+ *      Relying on CC_HAVE_ASM_GOTO would allow us to remove _fault.
+ */
+#define asm_safe(insn, inoutclob...) \
+({ \
+	int _fault = 0; \
+ \
+	asm volatile("1:" insn "\n" \
+	             "2:\n" \
+	             ".pushsection .fixup, \"ax\"\n" \
+	             "3: movl $1, %[_fault]\n" \
+	             "   jmp  2b\n" \
+	             ".popsection\n" \
+	             _ASM_EXTABLE(1b, 3b) \
+	             : [_fault] "+qm"(_fault) inoutclob ); \
+ \
+	_fault ? X86EMUL_UNHANDLEABLE : X86EMUL_CONTINUE; \
+})
+
 static int emulator_check_intercept(struct x86_emulate_ctxt *ctxt,
 				    enum x86_intercept intercept,
 				    enum x86_intercept_stage stage)
@@ -632,21 +653,24 @@ static void set_segment_selector(struct
  * depending on whether they're AVX encoded or not.
  *
  * Also included is CMPXCHG16B which is not a vector instruction, yet it is
- * subject to the same check.
+ * subject to the same check.  FXSAVE and FXRSTOR are checked here too as their
+ * 512 bytes of data must be aligned to a 16 byte boundary.
  */
-static bool insn_aligned(struct x86_emulate_ctxt *ctxt, unsigned size)
+static unsigned insn_alignment(struct x86_emulate_ctxt *ctxt, unsigned size)
 {
 	if (likely(size < 16))
-		return false;
+		return 1;
 
 	if (ctxt->d & Aligned)
-		return true;
+		return size;
 	else if (ctxt->d & Unaligned)
-		return false;
+		return 1;
 	else if (ctxt->d & Avx)
-		return false;
+		return 1;
+	else if (ctxt->d & Aligned16)
+		return 16;
 	else
-		return true;
+		return size;
 }
 
 static __always_inline int __linearize(struct x86_emulate_ctxt *ctxt,
@@ -704,7 +728,7 @@ static __always_inline int __linearize(s
 		}
 		break;
 	}
-	if (insn_aligned(ctxt, size) && ((la & (size - 1)) != 0))
+	if (la & (insn_alignment(ctxt, size) - 1))
 		return emulate_gp(ctxt, 0);
 	return X86EMUL_CONTINUE;
 bad:
@@ -791,6 +815,20 @@ static int segmented_read_std(struct x86
 	return ctxt->ops->read_std(ctxt, linear, data, size, &ctxt->exception);
 }
 
+static int segmented_write_std(struct x86_emulate_ctxt *ctxt,
+			       struct segmented_address addr,
+			       void *data,
+			       unsigned int size)
+{
+	int rc;
+	ulong linear;
+
+	rc = linearize(ctxt, addr, size, true, &linear);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+	return ctxt->ops->write_std(ctxt, linear, data, size, &ctxt->exception);
+}
+
 /*
  * Prefetch the remaining bytes of the instruction without crossing page
  * boundary if they are not in fetch_cache yet.
@@ -1544,7 +1582,6 @@ static int write_segment_descriptor(stru
 				    &ctxt->exception);
 }
 
-/* Does not support long mode */
 static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
 				     u16 selector, int seg, u8 cpl,
 				     enum x86_transfer_type transfer,
@@ -1581,20 +1618,34 @@ static int __load_segment_descriptor(str
 
 	rpl = selector & 3;
 
-	/* NULL selector is not valid for TR, CS and SS (except for long mode) */
-	if ((seg == VCPU_SREG_CS
-	     || (seg == VCPU_SREG_SS
-		 && (ctxt->mode != X86EMUL_MODE_PROT64 || rpl != cpl))
-	     || seg == VCPU_SREG_TR)
-	    && null_selector)
-		goto exception;
-
 	/* TR should be in GDT only */
 	if (seg == VCPU_SREG_TR && (selector & (1 << 2)))
 		goto exception;
 
-	if (null_selector) /* for NULL selector skip all following checks */
+	/* NULL selector is not valid for TR, CS and (except for long mode) SS */
+	if (null_selector) {
+		if (seg == VCPU_SREG_CS || seg == VCPU_SREG_TR)
+			goto exception;
+
+		if (seg == VCPU_SREG_SS) {
+			if (ctxt->mode != X86EMUL_MODE_PROT64 || rpl != cpl)
+				goto exception;
+
+			/*
+			 * ctxt->ops->set_segment expects the CPL to be in
+			 * SS.DPL, so fake an expand-up 32-bit data segment.
+			 */
+			seg_desc.type = 3;
+			seg_desc.p = 1;
+			seg_desc.s = 1;
+			seg_desc.dpl = cpl;
+			seg_desc.d = 1;
+			seg_desc.g = 1;
+		}
+
+		/* Skip all following checks */
 		goto load;
+	}
 
 	ret = read_segment_descriptor(ctxt, selector, &seg_desc, &desc_addr);
 	if (ret != X86EMUL_CONTINUE)
@@ -1710,6 +1761,21 @@ static int load_segment_descriptor(struc
 				   u16 selector, int seg)
 {
 	u8 cpl = ctxt->ops->cpl(ctxt);
+
+	/*
+	 * None of MOV, POP and LSS can load a NULL selector in CPL=3, but
+	 * they can load it at CPL<3 (Intel's manual says only LSS can,
+	 * but it's wrong).
+	 *
+	 * However, the Intel manual says that putting IST=1/DPL=3 in
+	 * an interrupt gate will result in SS=3 (the AMD manual instead
+	 * says it doesn't), so allow SS=3 in __load_segment_descriptor
+	 * and only forbid it here.
+	 */
+	if (seg == VCPU_SREG_SS && selector == 3 &&
+	    ctxt->mode == X86EMUL_MODE_PROT64)
+		return emulate_exception(ctxt, GP_VECTOR, 0, true);
+
 	return __load_segment_descriptor(ctxt, selector, seg, cpl,
 					 X86_TRANSFER_NONE, NULL);
 }
@@ -2477,7 +2543,7 @@ static int em_rsm(struct x86_emulate_ctx
 	u64 smbase;
 	int ret;
 
-	if ((ctxt->emul_flags & X86EMUL_SMM_MASK) == 0)
+	if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_MASK) == 0)
 		return emulate_ud(ctxt);
 
 	/*
@@ -2526,11 +2592,11 @@ static int em_rsm(struct x86_emulate_ctx
 		return X86EMUL_UNHANDLEABLE;
 	}
 
-	if ((ctxt->emul_flags & X86EMUL_SMM_INSIDE_NMI_MASK) == 0)
+	if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_INSIDE_NMI_MASK) == 0)
 		ctxt->ops->set_nmi_mask(ctxt, false);
 
-	ctxt->emul_flags &= ~X86EMUL_SMM_INSIDE_NMI_MASK;
-	ctxt->emul_flags &= ~X86EMUL_SMM_MASK;
+	ctxt->ops->set_hflags(ctxt, ctxt->ops->get_hflags(ctxt) &
+		~(X86EMUL_SMM_INSIDE_NMI_MASK | X86EMUL_SMM_MASK));
 	return X86EMUL_CONTINUE;
 }
 
@@ -3658,8 +3724,8 @@ static int emulate_store_desc_ptr(struct
 	}
 	/* Disable writeback. */
 	ctxt->dst.type = OP_NONE;
-	return segmented_write(ctxt, ctxt->dst.addr.mem,
-			       &desc_ptr, 2 + ctxt->op_bytes);
+	return segmented_write_std(ctxt, ctxt->dst.addr.mem,
+				   &desc_ptr, 2 + ctxt->op_bytes);
 }
 
 static int em_sgdt(struct x86_emulate_ctxt *ctxt)
@@ -3842,6 +3908,131 @@ static int em_movsxd(struct x86_emulate_
 	return X86EMUL_CONTINUE;
 }
 
+static int check_fxsr(struct x86_emulate_ctxt *ctxt)
+{
+	u32 eax = 1, ebx, ecx = 0, edx;
+
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	if (!(edx & FFL(FXSR)))
+		return emulate_ud(ctxt);
+
+	if (ctxt->ops->get_cr(ctxt, 0) & (X86_CR0_TS | X86_CR0_EM))
+		return emulate_nm(ctxt);
+
+	/*
+	 * Don't emulate a case that should never be hit, instead of working
+	 * around a lack of fxsave64/fxrstor64 on old compilers.
+	 */
+	if (ctxt->mode >= X86EMUL_MODE_PROT64)
+		return X86EMUL_UNHANDLEABLE;
+
+	return X86EMUL_CONTINUE;
+}
+
+/*
+ * FXSAVE and FXRSTOR have 4 different formats depending on execution mode,
+ *  1) 16 bit mode
+ *  2) 32 bit mode
+ *     - like (1), but FIP and FDP (foo) are only 16 bit.  At least Intel CPUs
+ *       preserve whole 32 bit values, though, so (1) and (2) are the same wrt.
+ *       save and restore
+ *  3) 64-bit mode with REX.W prefix
+ *     - like (2), but XMM 8-15 are being saved and restored
+ *  4) 64-bit mode without REX.W prefix
+ *     - like (3), but FIP and FDP are 64 bit
+ *
+ * Emulation uses (3) for (1) and (2) and preserves XMM 8-15 to reach the
+ * desired result.  (4) is not emulated.
+ *
+ * Note: Guest and host CPUID.(EAX=07H,ECX=0H):EBX[bit 13] (deprecate FPU CS
+ * and FPU DS) should match.
+ */
+static int em_fxsave(struct x86_emulate_ctxt *ctxt)
+{
+	struct fxregs_state fx_state;
+	size_t size;
+	int rc;
+
+	rc = check_fxsr(ctxt);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	ctxt->ops->get_fpu(ctxt);
+
+	rc = asm_safe("fxsave %[fx]", , [fx] "+m"(fx_state));
+
+	ctxt->ops->put_fpu(ctxt);
+
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	if (ctxt->ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR)
+		size = offsetof(struct fxregs_state, xmm_space[8 * 16/4]);
+	else
+		size = offsetof(struct fxregs_state, xmm_space[0]);
+
+	return segmented_write_std(ctxt, ctxt->memop.addr.mem, &fx_state, size);
+}
+
+static int fxrstor_fixup(struct x86_emulate_ctxt *ctxt,
+		struct fxregs_state *new)
+{
+	int rc = X86EMUL_CONTINUE;
+	struct fxregs_state old;
+
+	rc = asm_safe("fxsave %[fx]", , [fx] "+m"(old));
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	/*
+	 * 64 bit host will restore XMM 8-15, which is not correct on non-64
+	 * bit guests.  Load the current values in order to preserve 64 bit
+	 * XMMs after fxrstor.
+	 */
+#ifdef CONFIG_X86_64
+	/* XXX: accessing XMM 8-15 very awkwardly */
+	memcpy(&new->xmm_space[8 * 16/4], &old.xmm_space[8 * 16/4], 8 * 16);
+#endif
+
+	/*
+	 * Hardware doesn't save and restore XMM 0-7 without CR4.OSFXSR, but
+	 * does save and restore MXCSR.
+	 */
+	if (!(ctxt->ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR))
+		memcpy(new->xmm_space, old.xmm_space, 8 * 16);
+
+	return rc;
+}
+
+static int em_fxrstor(struct x86_emulate_ctxt *ctxt)
+{
+	struct fxregs_state fx_state;
+	int rc;
+
+	rc = check_fxsr(ctxt);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	rc = segmented_read_std(ctxt, ctxt->memop.addr.mem, &fx_state, 512);
+	if (rc != X86EMUL_CONTINUE)
+		return rc;
+
+	if (fx_state.mxcsr >> 16)
+		return emulate_gp(ctxt, 0);
+
+	ctxt->ops->get_fpu(ctxt);
+
+	if (ctxt->mode < X86EMUL_MODE_PROT64)
+		rc = fxrstor_fixup(ctxt, &fx_state);
+
+	if (rc == X86EMUL_CONTINUE)
+		rc = asm_safe("fxrstor %[fx]", : [fx] "m"(fx_state));
+
+	ctxt->ops->put_fpu(ctxt);
+
+	return rc;
+}
+
 static bool valid_cr(int nr)
 {
 	switch (nr) {
@@ -4194,7 +4385,9 @@ static const struct gprefix pfx_0f_ae_7
 };
 
 static const struct group_dual group15 = { {
-	N, N, N, N, N, N, N, GP(0, &pfx_0f_ae_7),
+	I(ModRM | Aligned16, em_fxsave),
+	I(ModRM | Aligned16, em_fxrstor),
+	N, N, N, N, N, GP(0, &pfx_0f_ae_7),
 }, {
 	N, N, N, N, N, N, N, N,
 } };
@@ -5066,21 +5259,13 @@ static bool string_insn_completed(struct
 
 static int flush_pending_x87_faults(struct x86_emulate_ctxt *ctxt)
 {
-	bool fault = false;
+	int rc;
 
 	ctxt->ops->get_fpu(ctxt);
-	asm volatile("1: fwait \n\t"
-		     "2: \n\t"
-		     ".pushsection .fixup,\"ax\" \n\t"
-		     "3: \n\t"
-		     "movb $1, %[fault] \n\t"
-		     "jmp 2b \n\t"
-		     ".popsection \n\t"
-		     _ASM_EXTABLE(1b, 3b)
-		     : [fault]"+qm"(fault));
+	rc = asm_safe("fwait");
 	ctxt->ops->put_fpu(ctxt);
 
-	if (unlikely(fault))
+	if (unlikely(rc != X86EMUL_CONTINUE))
 		return emulate_exception(ctxt, MF_VECTOR, 0, false);
 
 	return X86EMUL_CONTINUE;
@@ -5127,6 +5312,7 @@ int x86_emulate_insn(struct x86_emulate_
 	const struct x86_emulate_ops *ops = ctxt->ops;
 	int rc = X86EMUL_CONTINUE;
 	int saved_dst_type = ctxt->dst.type;
+	unsigned emul_flags;
 
 	ctxt->mem_read.pos = 0;
 
@@ -5141,6 +5327,7 @@ int x86_emulate_insn(struct x86_emulate_
 		goto done;
 	}
 
+	emul_flags = ctxt->ops->get_hflags(ctxt);
 	if (unlikely(ctxt->d &
 		     (No64|Undefined|Sse|Mmx|Intercept|CheckPerm|Priv|Prot|String))) {
 		if ((ctxt->mode == X86EMUL_MODE_PROT64 && (ctxt->d & No64)) ||
@@ -5174,7 +5361,7 @@ int x86_emulate_insn(struct x86_emulate_
 				fetch_possible_mmx_operand(ctxt, &ctxt->dst);
 		}
 
-		if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && ctxt->intercept) {
+		if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && ctxt->intercept) {
 			rc = emulator_check_intercept(ctxt, ctxt->intercept,
 						      X86_ICPT_PRE_EXCEPT);
 			if (rc != X86EMUL_CONTINUE)
@@ -5203,7 +5390,7 @@ int x86_emulate_insn(struct x86_emulate_
 				goto done;
 		}
 
-		if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
+		if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
 			rc = emulator_check_intercept(ctxt, ctxt->intercept,
 						      X86_ICPT_POST_EXCEPT);
 			if (rc != X86EMUL_CONTINUE)
@@ -5257,7 +5444,7 @@ int x86_emulate_insn(struct x86_emulate_
 
 special_insn:
 
-	if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
+	if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
 		rc = emulator_check_intercept(ctxt, ctxt->intercept,
 					      X86_ICPT_POST_MEMACCESS);
 		if (rc != X86EMUL_CONTINUE)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/lapic.c linux-libre-4.9.52-gnu/arch/x86/kvm/lapic.c
--- linux-libre-4.9-gnu/arch/x86/kvm/lapic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/lapic.c	2017-09-27 08:40:05.000000000 -0400
@@ -2360,3 +2360,9 @@ void kvm_lapic_init(void)
 	jump_label_rate_limit(&apic_hw_disabled, HZ);
 	jump_label_rate_limit(&apic_sw_disabled, HZ);
 }
+
+void kvm_lapic_exit(void)
+{
+	static_key_deferred_flush(&apic_hw_disabled);
+	static_key_deferred_flush(&apic_sw_disabled);
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/lapic.h linux-libre-4.9.52-gnu/arch/x86/kvm/lapic.h
--- linux-libre-4.9-gnu/arch/x86/kvm/lapic.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/lapic.h	2017-09-27 08:40:05.000000000 -0400
@@ -108,6 +108,7 @@ static inline bool kvm_hv_vapic_assist_p
 
 int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data);
 void kvm_lapic_init(void);
+void kvm_lapic_exit(void);
 
 #define VEC_POS(v) ((v) & (32 - 1))
 #define REG_POS(v) (((v) >> 5) << 4)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/mmu.c linux-libre-4.9.52-gnu/arch/x86/kvm/mmu.c
--- linux-libre-4.9-gnu/arch/x86/kvm/mmu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/mmu.c	2017-09-27 08:40:05.000000000 -0400
@@ -3489,12 +3489,15 @@ static int kvm_arch_setup_async_pf(struc
 	return kvm_setup_async_pf(vcpu, gva, kvm_vcpu_gfn_to_hva(vcpu, gfn), &arch);
 }
 
-static bool can_do_async_pf(struct kvm_vcpu *vcpu)
+bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu)
 {
 	if (unlikely(!lapic_in_kernel(vcpu) ||
 		     kvm_event_needs_reinjection(vcpu)))
 		return false;
 
+	if (is_guest_mode(vcpu))
+		return false;
+
 	return kvm_x86_ops->interrupt_allowed(vcpu);
 }
 
@@ -3510,7 +3513,7 @@ static bool try_async_pf(struct kvm_vcpu
 	if (!async)
 		return false; /* *pfn has correct page already */
 
-	if (!prefault && can_do_async_pf(vcpu)) {
+	if (!prefault && kvm_can_do_async_pf(vcpu)) {
 		trace_kvm_try_async_get_page(gva, gfn);
 		if (kvm_find_async_pf_gfn(vcpu, gfn)) {
 			trace_kvm_async_pf_doublefault(gva, gfn);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/mmu.h linux-libre-4.9.52-gnu/arch/x86/kvm/mmu.h
--- linux-libre-4.9-gnu/arch/x86/kvm/mmu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/mmu.h	2017-09-27 08:40:05.000000000 -0400
@@ -75,6 +75,7 @@ enum {
 int handle_mmio_page_fault(struct kvm_vcpu *vcpu, u64 addr, bool direct);
 void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu);
 void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly);
+bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu);
 
 static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/page_track.c linux-libre-4.9.52-gnu/arch/x86/kvm/page_track.c
--- linux-libre-4.9-gnu/arch/x86/kvm/page_track.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/page_track.c	2017-09-27 08:40:05.000000000 -0400
@@ -156,6 +156,14 @@ bool kvm_page_track_is_active(struct kvm
 	return !!ACCESS_ONCE(slot->arch.gfn_track[mode][index]);
 }
 
+void kvm_page_track_cleanup(struct kvm *kvm)
+{
+	struct kvm_page_track_notifier_head *head;
+
+	head = &kvm->arch.track_notifier_head;
+	cleanup_srcu_struct(&head->track_srcu);
+}
+
 void kvm_page_track_init(struct kvm *kvm)
 {
 	struct kvm_page_track_notifier_head *head;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/pmu_intel.c linux-libre-4.9.52-gnu/arch/x86/kvm/pmu_intel.c
--- linux-libre-4.9-gnu/arch/x86/kvm/pmu_intel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/pmu_intel.c	2017-09-27 08:40:05.000000000 -0400
@@ -294,7 +294,7 @@ static void intel_pmu_refresh(struct kvm
 			((u64)1 << edx.split.bit_width_fixed) - 1;
 	}
 
-	pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) |
+	pmu->global_ctrl = ((1ull << pmu->nr_arch_gp_counters) - 1) |
 		(((1ull << pmu->nr_arch_fixed_counters) - 1) << INTEL_PMC_IDX_FIXED);
 	pmu->global_ctrl_mask = ~pmu->global_ctrl;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/vmx.c linux-libre-4.9.52-gnu/arch/x86/kvm/vmx.c
--- linux-libre-4.9-gnu/arch/x86/kvm/vmx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/vmx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1343,10 +1343,10 @@ static inline bool nested_cpu_has_posted
 	return vmcs12->pin_based_vm_exec_control & PIN_BASED_POSTED_INTR;
 }
 
-static inline bool is_exception(u32 intr_info)
+static inline bool is_nmi(u32 intr_info)
 {
 	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))
-		== (INTR_TYPE_HARD_EXCEPTION | INTR_INFO_VALID_MASK);
+		== (INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK);
 }
 
 static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
@@ -2455,7 +2455,7 @@ static int nested_vmx_check_exception(st
 	if (!(vmcs12->exception_bitmap & (1u << nr)))
 		return 0;
 
-	nested_vmx_vmexit(vcpu, to_vmx(vcpu)->exit_reason,
+	nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
 			  vmcs_read32(VM_EXIT_INTR_INFO),
 			  vmcs_readl(EXIT_QUALIFICATION));
 	return 1;
@@ -2987,7 +2987,8 @@ static int vmx_get_msr(struct kvm_vcpu *
 		msr_info->data = vmcs_readl(GUEST_SYSENTER_ESP);
 		break;
 	case MSR_IA32_BNDCFGS:
-		if (!kvm_mpx_supported())
+		if (!kvm_mpx_supported() ||
+		    (!msr_info->host_initiated && !guest_cpuid_has_mpx(vcpu)))
 			return 1;
 		msr_info->data = vmcs_read64(GUEST_BNDCFGS);
 		break;
@@ -3069,7 +3070,11 @@ static int vmx_set_msr(struct kvm_vcpu *
 		vmcs_writel(GUEST_SYSENTER_ESP, data);
 		break;
 	case MSR_IA32_BNDCFGS:
-		if (!kvm_mpx_supported())
+		if (!kvm_mpx_supported() ||
+		    (!msr_info->host_initiated && !guest_cpuid_has_mpx(vcpu)))
+			return 1;
+		if (is_noncanonical_address(data & PAGE_MASK) ||
+		    (data & MSR_IA32_BNDCFGS_RSVD))
 			return 1;
 		vmcs_write64(GUEST_BNDCFGS, data);
 		break;
@@ -3693,7 +3698,7 @@ static void fix_rmode_seg(int seg, struc
 	}
 
 	vmcs_write16(sf->selector, var.selector);
-	vmcs_write32(sf->base, var.base);
+	vmcs_writel(sf->base, var.base);
 	vmcs_write32(sf->limit, var.limit);
 	vmcs_write32(sf->ar_bytes, vmx_segment_access_rights(&var));
 }
@@ -5476,7 +5481,7 @@ static int handle_exception(struct kvm_v
 	if (is_machine_check(intr_info))
 		return handle_machine_check(vcpu);
 
-	if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == INTR_TYPE_NMI_INTR)
+	if (is_nmi(intr_info))
 		return 1;  /* already handled by vmx_vcpu_run() */
 
 	if (is_no_device(intr_info)) {
@@ -6474,7 +6479,6 @@ static __init int hardware_setup(void)
 	vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_CS, false);
 	vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_ESP, false);
 	vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_EIP, false);
-	vmx_disable_intercept_for_msr(MSR_IA32_BNDCFGS, true);
 
 	memcpy(vmx_msr_bitmap_legacy_x2apic,
 			vmx_msr_bitmap_legacy, PAGE_SIZE);
@@ -6925,14 +6929,20 @@ static int nested_vmx_check_vmptr(struct
 		}
 
 		page = nested_get_page(vcpu, vmptr);
-		if (page == NULL ||
-		    *(u32 *)kmap(page) != VMCS12_REVISION) {
+		if (page == NULL) {
 			nested_vmx_failInvalid(vcpu);
+			skip_emulated_instruction(vcpu);
+			return 1;
+		}
+		if (*(u32 *)kmap(page) != VMCS12_REVISION) {
 			kunmap(page);
+			nested_release_page_clean(page);
+			nested_vmx_failInvalid(vcpu);
 			skip_emulated_instruction(vcpu);
 			return 1;
 		}
 		kunmap(page);
+		nested_release_page_clean(page);
 		vmx->nested.vmxon_ptr = vmptr;
 		break;
 	case EXIT_REASON_VMCLEAR:
@@ -8018,7 +8028,7 @@ static bool nested_vmx_exit_handled(stru
 
 	switch (exit_reason) {
 	case EXIT_REASON_EXCEPTION_NMI:
-		if (!is_exception(intr_info))
+		if (is_nmi(intr_info))
 			return false;
 		else if (is_page_fault(intr_info))
 			return enable_ept;
@@ -8045,8 +8055,6 @@ static bool nested_vmx_exit_handled(stru
 	case EXIT_REASON_TASK_SWITCH:
 		return true;
 	case EXIT_REASON_CPUID:
-		if (kvm_register_read(vcpu, VCPU_REGS_RAX) == 0xa)
-			return false;
 		return true;
 	case EXIT_REASON_HLT:
 		return nested_cpu_has(vmcs12, CPU_BASED_HLT_EXITING);
@@ -8131,6 +8139,9 @@ static bool nested_vmx_exit_handled(stru
 		return nested_cpu_has2(vmcs12, SECONDARY_EXEC_XSAVES);
 	case EXIT_REASON_PREEMPTION_TIMER:
 		return false;
+	case EXIT_REASON_PML_FULL:
+		/* We don't expose PML support to L1. */
+		return false;
 	default:
 		return true;
 	}
@@ -8202,7 +8213,7 @@ static void kvm_flush_pml_buffers(struct
 static void vmx_dump_sel(char *name, uint32_t sel)
 {
 	pr_err("%s sel=0x%04x, attr=0x%05x, limit=0x%08x, base=0x%016lx\n",
-	       name, vmcs_read32(sel),
+	       name, vmcs_read16(sel),
 	       vmcs_read32(sel + GUEST_ES_AR_BYTES - GUEST_ES_SELECTOR),
 	       vmcs_read32(sel + GUEST_ES_LIMIT - GUEST_ES_SELECTOR),
 	       vmcs_readl(sel + GUEST_ES_BASE - GUEST_ES_SELECTOR));
@@ -8611,8 +8622,7 @@ static void vmx_complete_atomic_exit(str
 		kvm_machine_check();
 
 	/* We need to handle NMIs before interrupts are enabled */
-	if ((exit_intr_info & INTR_INFO_INTR_TYPE_MASK) == INTR_TYPE_NMI_INTR &&
-	    (exit_intr_info & INTR_INFO_VALID_MASK)) {
+	if (is_nmi(exit_intr_info)) {
 		kvm_before_handle_nmi(&vmx->vcpu);
 		asm("int $2");
 		kvm_after_handle_nmi(&vmx->vcpu);
@@ -10068,6 +10078,18 @@ static void prepare_vmcs02(struct kvm_vc
 
 	}
 
+	if (enable_pml) {
+		/*
+		 * Conceptually we want to copy the PML address and index from
+		 * vmcs01 here, and then back to vmcs01 on nested vmexit. But,
+		 * since we always flush the log on each vmexit, this happens
+		 * to be equivalent to simply resetting the fields in vmcs02.
+		 */
+		ASSERT(vmx->pml_pg);
+		vmcs_write64(PML_ADDRESS, page_to_phys(vmx->pml_pg));
+		vmcs_write16(GUEST_PML_INDEX, PML_ENTITY_NUM - 1);
+	}
+
 	if (nested_cpu_has_ept(vmcs12)) {
 		kvm_mmu_unload(vcpu);
 		nested_ept_init_mmu_context(vcpu);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/kvm/x86.c linux-libre-4.9.52-gnu/arch/x86/kvm/x86.c
--- linux-libre-4.9-gnu/arch/x86/kvm/x86.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/kvm/x86.c	2017-09-27 08:40:05.000000000 -0400
@@ -1735,6 +1735,7 @@ static u64 __get_kvmclock_ns(struct kvm
 {
 	struct kvm_arch *ka = &kvm->arch;
 	struct pvclock_vcpu_time_info hv_clock;
+	u64 ret;
 
 	spin_lock(&ka->pvclock_gtod_sync_lock);
 	if (!ka->use_master_clock) {
@@ -1746,10 +1747,17 @@ static u64 __get_kvmclock_ns(struct kvm
 	hv_clock.system_time = ka->master_kernel_ns + ka->kvmclock_offset;
 	spin_unlock(&ka->pvclock_gtod_sync_lock);
 
+	/* both __this_cpu_read() and rdtsc() should be on the same cpu */
+	get_cpu();
+
 	kvm_get_time_scale(NSEC_PER_SEC, __this_cpu_read(cpu_tsc_khz) * 1000LL,
 			   &hv_clock.tsc_shift,
 			   &hv_clock.tsc_to_system_mul);
-	return __pvclock_read_cycles(&hv_clock, rdtsc());
+	ret = __pvclock_read_cycles(&hv_clock, rdtsc());
+
+	put_cpu();
+
+	return ret;
 }
 
 u64 get_kvmclock_ns(struct kvm *kvm)
@@ -3036,6 +3044,8 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_
 	memset(&events->reserved, 0, sizeof(events->reserved));
 }
 
+static void kvm_set_hflags(struct kvm_vcpu *vcpu, unsigned emul_flags);
+
 static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
 					      struct kvm_vcpu_events *events)
 {
@@ -3049,6 +3059,12 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_e
 	    (events->exception.nr > 31 || events->exception.nr == NMI_VECTOR))
 		return -EINVAL;
 
+	/* INITs are latched while in SMM */
+	if (events->flags & KVM_VCPUEVENT_VALID_SMM &&
+	    (events->smi.smm || events->smi.pending) &&
+	    vcpu->arch.mp_state == KVM_MP_STATE_INIT_RECEIVED)
+		return -EINVAL;
+
 	process_nmi(vcpu);
 	vcpu->arch.exception.pending = events->exception.injected;
 	vcpu->arch.exception.nr = events->exception.nr;
@@ -3072,10 +3088,13 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_e
 		vcpu->arch.apic->sipi_vector = events->sipi_vector;
 
 	if (events->flags & KVM_VCPUEVENT_VALID_SMM) {
+		u32 hflags = vcpu->arch.hflags;
 		if (events->smi.smm)
-			vcpu->arch.hflags |= HF_SMM_MASK;
+			hflags |= HF_SMM_MASK;
 		else
-			vcpu->arch.hflags &= ~HF_SMM_MASK;
+			hflags &= ~HF_SMM_MASK;
+		kvm_set_hflags(vcpu, hflags);
+
 		vcpu->arch.smi_pending = events->smi.pending;
 		if (events->smi.smm_inside_nmi)
 			vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK;
@@ -3143,6 +3162,7 @@ static void fill_xsave(u8 *dest, struct
 	memcpy(dest, xsave, XSAVE_HDR_OFFSET);
 
 	/* Set XSTATE_BV */
+	xstate_bv &= vcpu->arch.guest_supported_xcr0 | XFEATURE_MASK_FPSSE;
 	*(u64 *)(dest + XSAVE_HDR_OFFSET) = xstate_bv;
 
 	/*
@@ -3219,11 +3239,14 @@ static void kvm_vcpu_ioctl_x86_get_xsave
 	}
 }
 
+#define XSAVE_MXCSR_OFFSET 24
+
 static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
 					struct kvm_xsave *guest_xsave)
 {
 	u64 xstate_bv =
 		*(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)];
+	u32 mxcsr = *(u32 *)&guest_xsave->region[XSAVE_MXCSR_OFFSET / sizeof(u32)];
 
 	if (boot_cpu_has(X86_FEATURE_XSAVE)) {
 		/*
@@ -3231,11 +3254,13 @@ static int kvm_vcpu_ioctl_x86_set_xsave(
 		 * CPUID leaf 0xD, index 0, EDX:EAX.  This is for compatibility
 		 * with old userspace.
 		 */
-		if (xstate_bv & ~kvm_supported_xcr0())
+		if (xstate_bv & ~kvm_supported_xcr0() ||
+			mxcsr & ~mxcsr_feature_mask)
 			return -EINVAL;
 		load_xsave(vcpu, (u8 *)guest_xsave->region);
 	} else {
-		if (xstate_bv & ~XFEATURE_MASK_FPSSE)
+		if (xstate_bv & ~XFEATURE_MASK_FPSSE ||
+			mxcsr & ~mxcsr_feature_mask)
 			return -EINVAL;
 		memcpy(&vcpu->arch.guest_fpu.state.fxsave,
 			guest_xsave->region, sizeof(struct fxregs_state));
@@ -3303,6 +3328,8 @@ static int kvm_vcpu_ioctl_enable_cap(str
 
 	switch (cap->cap) {
 	case KVM_CAP_HYPERV_SYNIC:
+		if (!irqchip_in_kernel(vcpu->kvm))
+			return -EINVAL;
 		return kvm_hv_activate_synic(vcpu);
 	default:
 		return -EINVAL;
@@ -4736,16 +4763,20 @@ emul_write:
 
 static int kernel_pio(struct kvm_vcpu *vcpu, void *pd)
 {
-	/* TODO: String I/O for in kernel device */
-	int r;
+	int r = 0, i;
 
-	if (vcpu->arch.pio.in)
-		r = kvm_io_bus_read(vcpu, KVM_PIO_BUS, vcpu->arch.pio.port,
-				    vcpu->arch.pio.size, pd);
-	else
-		r = kvm_io_bus_write(vcpu, KVM_PIO_BUS,
-				     vcpu->arch.pio.port, vcpu->arch.pio.size,
-				     pd);
+	for (i = 0; i < vcpu->arch.pio.count; i++) {
+		if (vcpu->arch.pio.in)
+			r = kvm_io_bus_read(vcpu, KVM_PIO_BUS, vcpu->arch.pio.port,
+					    vcpu->arch.pio.size, pd);
+		else
+			r = kvm_io_bus_write(vcpu, KVM_PIO_BUS,
+					     vcpu->arch.pio.port, vcpu->arch.pio.size,
+					     pd);
+		if (r)
+			break;
+		pd += vcpu->arch.pio.size;
+	}
 	return r;
 }
 
@@ -4783,6 +4814,8 @@ static int emulator_pio_in_emulated(stru
 	if (vcpu->arch.pio.count)
 		goto data_avail;
 
+	memset(vcpu->arch.pio_data, 0, size * count);
+
 	ret = emulator_pio_in_out(vcpu, size, port, val, count, true);
 	if (ret) {
 data_avail:
@@ -4966,6 +4999,8 @@ static bool emulator_get_segment(struct
 
 	if (var.unusable) {
 		memset(desc, 0, sizeof(*desc));
+		if (base3)
+			*base3 = 0;
 		return false;
 	}
 
@@ -5121,6 +5156,16 @@ static void emulator_set_nmi_mask(struct
 	kvm_x86_ops->set_nmi_mask(emul_to_vcpu(ctxt), masked);
 }
 
+static unsigned emulator_get_hflags(struct x86_emulate_ctxt *ctxt)
+{
+	return emul_to_vcpu(ctxt)->arch.hflags;
+}
+
+static void emulator_set_hflags(struct x86_emulate_ctxt *ctxt, unsigned emul_flags)
+{
+	kvm_set_hflags(emul_to_vcpu(ctxt), emul_flags);
+}
+
 static const struct x86_emulate_ops emulate_ops = {
 	.read_gpr            = emulator_read_gpr,
 	.write_gpr           = emulator_write_gpr,
@@ -5160,6 +5205,8 @@ static const struct x86_emulate_ops emul
 	.intercept           = emulator_intercept,
 	.get_cpuid           = emulator_get_cpuid,
 	.set_nmi_mask        = emulator_set_nmi_mask,
+	.get_hflags          = emulator_get_hflags,
+	.set_hflags          = emulator_set_hflags,
 };
 
 static void toggle_interruptibility(struct kvm_vcpu *vcpu, u32 mask)
@@ -5212,7 +5259,6 @@ static void init_emulate_ctxt(struct kvm
 	BUILD_BUG_ON(HF_GUEST_MASK != X86EMUL_GUEST_MASK);
 	BUILD_BUG_ON(HF_SMM_MASK != X86EMUL_SMM_MASK);
 	BUILD_BUG_ON(HF_SMM_INSIDE_NMI_MASK != X86EMUL_SMM_INSIDE_NMI_MASK);
-	ctxt->emul_flags = vcpu->arch.hflags;
 
 	init_decode_cache(ctxt);
 	vcpu->arch.emulate_regs_need_sync_from_vcpu = false;
@@ -5603,8 +5649,6 @@ restart:
 		unsigned long rflags = kvm_x86_ops->get_rflags(vcpu);
 		toggle_interruptibility(vcpu, ctxt->interruptibility);
 		vcpu->arch.emulate_regs_need_sync_to_vcpu = false;
-		if (vcpu->arch.hflags != ctxt->emul_flags)
-			kvm_set_hflags(vcpu, ctxt->emul_flags);
 		kvm_rip_write(vcpu, ctxt->eip);
 		if (r == EMULATE_DONE)
 			kvm_vcpu_check_singlestep(vcpu, rflags, &r);
@@ -5958,6 +6002,7 @@ out:
 
 void kvm_arch_exit(void)
 {
+	kvm_lapic_exit();
 	perf_unregister_guest_info_callbacks(&kvm_guest_cbs);
 
 	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
@@ -6077,7 +6122,8 @@ static int emulator_fix_hypercall(struct
 
 	kvm_x86_ops->patch_hypercall(vcpu, instruction);
 
-	return emulator_write_emulated(ctxt, rip, instruction, 3, NULL);
+	return emulator_write_emulated(ctxt, rip, instruction, 3,
+		&ctxt->exception);
 }
 
 static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu)
@@ -7153,6 +7199,12 @@ int kvm_arch_vcpu_ioctl_set_mpstate(stru
 	    mp_state->mp_state != KVM_MP_STATE_RUNNABLE)
 		return -EINVAL;
 
+	/* INITs are latched while in SMM */
+	if ((is_smm(vcpu) || vcpu->arch.smi_pending) &&
+	    (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED ||
+	     mp_state->mp_state == KVM_MP_STATE_INIT_RECEIVED))
+		return -EINVAL;
+
 	if (mp_state->mp_state == KVM_MP_STATE_SIPI_RECEIVED) {
 		vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED;
 		set_bit(KVM_APIC_SIPI, &vcpu->arch.apic->pending_events);
@@ -7967,6 +8019,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm
 	kvm_free_vcpus(kvm);
 	kvfree(rcu_dereference_check(kvm->arch.apic_map, 1));
 	kvm_mmu_uninit_vm(kvm);
+	kvm_page_track_cleanup(kvm);
 }
 
 void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
@@ -8403,8 +8456,7 @@ bool kvm_arch_can_inject_async_page_pres
 	if (!(vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED))
 		return true;
 	else
-		return !kvm_event_needs_reinjection(vcpu) &&
-			kvm_x86_ops->interrupt_allowed(vcpu);
+		return kvm_can_do_async_pf(vcpu);
 }
 
 void kvm_arch_start_assignment(struct kvm *kvm)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/lib/copy_user_64.S linux-libre-4.9.52-gnu/arch/x86/lib/copy_user_64.S
--- linux-libre-4.9-gnu/arch/x86/lib/copy_user_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/lib/copy_user_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -84,7 +84,7 @@ ENTRY(copy_user_generic_unrolled)
 	movl %edx,%ecx
 	andl $63,%edx
 	shrl $6,%ecx
-	jz 17f
+	jz .L_copy_short_string
 1:	movq (%rsi),%r8
 2:	movq 1*8(%rsi),%r9
 3:	movq 2*8(%rsi),%r10
@@ -105,7 +105,8 @@ ENTRY(copy_user_generic_unrolled)
 	leaq 64(%rdi),%rdi
 	decl %ecx
 	jnz 1b
-17:	movl %edx,%ecx
+.L_copy_short_string:
+	movl %edx,%ecx
 	andl $7,%edx
 	shrl $3,%ecx
 	jz 20f
@@ -221,6 +222,8 @@ EXPORT_SYMBOL(copy_user_generic_string)
  */
 ENTRY(copy_user_enhanced_fast_string)
 	ASM_STAC
+	cmpl $64,%edx
+	jb .L_copy_short_string	/* less then 64 bytes, avoid the costly 'rep' */
 	movl %edx,%ecx
 1:	rep
 	movsb
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/lib/memcpy_64.S linux-libre-4.9.52-gnu/arch/x86/lib/memcpy_64.S
--- linux-libre-4.9-gnu/arch/x86/lib/memcpy_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/lib/memcpy_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -290,7 +290,7 @@ EXPORT_SYMBOL_GPL(memcpy_mcsafe_unrolled
 	_ASM_EXTABLE_FAULT(.L_copy_leading_bytes, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w0, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w1, .L_memcpy_mcsafe_fail)
-	_ASM_EXTABLE_FAULT(.L_cache_w3, .L_memcpy_mcsafe_fail)
+	_ASM_EXTABLE_FAULT(.L_cache_w2, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w3, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w4, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w5, .L_memcpy_mcsafe_fail)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/dump_pagetables.c linux-libre-4.9.52-gnu/arch/x86/mm/dump_pagetables.c
--- linux-libre-4.9-gnu/arch/x86/mm/dump_pagetables.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/dump_pagetables.c	2017-09-27 08:40:05.000000000 -0400
@@ -15,6 +15,7 @@
 #include <linux/debugfs.h>
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/sched.h>
 #include <linux/seq_file.h>
 
 #include <asm/pgtable.h>
@@ -406,6 +407,7 @@ static void ptdump_walk_pgd_level_core(s
 		} else
 			note_page(m, &st, __pgprot(0), 1);
 
+		cond_resched();
 		start++;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/gup.c linux-libre-4.9.52-gnu/arch/x86/mm/gup.c
--- linux-libre-4.9-gnu/arch/x86/mm/gup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/gup.c	2017-09-27 08:40:05.000000000 -0400
@@ -120,6 +120,11 @@ static noinline int gup_pte_range(pmd_t
 			return 0;
 		}
 
+		if (!pte_allows_gup(pte_val(pte), write)) {
+			pte_unmap(ptep);
+			return 0;
+		}
+
 		if (pte_devmap(pte)) {
 			pgmap = get_dev_pagemap(pte_pfn(pte), pgmap);
 			if (unlikely(!pgmap)) {
@@ -127,8 +132,7 @@ static noinline int gup_pte_range(pmd_t
 				pte_unmap(ptep);
 				return 0;
 			}
-		} else if (!pte_allows_gup(pte_val(pte), write) ||
-			   pte_special(pte)) {
+		} else if (pte_special(pte)) {
 			pte_unmap(ptep);
 			return 0;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/hugetlbpage.c linux-libre-4.9.52-gnu/arch/x86/mm/hugetlbpage.c
--- linux-libre-4.9-gnu/arch/x86/mm/hugetlbpage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/hugetlbpage.c	2017-09-27 08:40:05.000000000 -0400
@@ -144,7 +144,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/init_64.c linux-libre-4.9.52-gnu/arch/x86/mm/init_64.c
--- linux-libre-4.9-gnu/arch/x86/mm/init_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/init_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -94,10 +94,10 @@ __setup("noexec32=", nonx32_setup);
  */
 void sync_global_pgds(unsigned long start, unsigned long end, int removed)
 {
-	unsigned long address;
+	unsigned long addr;
 
-	for (address = start; address <= end; address += PGDIR_SIZE) {
-		const pgd_t *pgd_ref = pgd_offset_k(address);
+	for (addr = start; addr <= end; addr = ALIGN(addr + 1, PGDIR_SIZE)) {
+		const pgd_t *pgd_ref = pgd_offset_k(addr);
 		struct page *page;
 
 		/*
@@ -113,7 +113,7 @@ void sync_global_pgds(unsigned long star
 			pgd_t *pgd;
 			spinlock_t *pgt_lock;
 
-			pgd = (pgd_t *)page_address(page) + pgd_index(address);
+			pgd = (pgd_t *)page_address(page) + pgd_index(addr);
 			/* the pgt_lock only for Xen */
 			pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
 			spin_lock(pgt_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/init.c linux-libre-4.9.52-gnu/arch/x86/mm/init.c
--- linux-libre-4.9-gnu/arch/x86/mm/init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/init.c	2017-09-27 08:40:05.000000000 -0400
@@ -643,21 +643,40 @@ void __init init_mem_mapping(void)
  * devmem_is_allowed() checks to see if /dev/mem access to a certain address
  * is valid. The argument is a physical page number.
  *
- *
- * On x86, access has to be given to the first megabyte of ram because that area
- * contains BIOS code and data regions used by X and dosemu and similar apps.
- * Access has to be given to non-kernel-ram areas as well, these contain the PCI
- * mmio resources as well as potential bios/acpi data regions.
+ * On x86, access has to be given to the first megabyte of RAM because that
+ * area traditionally contains BIOS code and data regions used by X, dosemu,
+ * and similar apps. Since they map the entire memory range, the whole range
+ * must be allowed (for mapping), but any areas that would otherwise be
+ * disallowed are flagged as being "zero filled" instead of rejected.
+ * Access has to be given to non-kernel-ram areas as well, these contain the
+ * PCI mmio resources as well as potential bios/acpi data regions.
  */
 int devmem_is_allowed(unsigned long pagenr)
 {
-	if (pagenr < 256)
-		return 1;
-	if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
+	if (page_is_ram(pagenr)) {
+		/*
+		 * For disallowed memory regions in the low 1MB range,
+		 * request that the page be shown as all zeros.
+		 */
+		if (pagenr < 256)
+			return 2;
+
 		return 0;
-	if (!page_is_ram(pagenr))
-		return 1;
-	return 0;
+	}
+
+	/*
+	 * This must follow RAM test, since System RAM is considered a
+	 * restricted resource under CONFIG_STRICT_IOMEM.
+	 */
+	if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) {
+		/* Low 1MB bypasses iomem restrictions. */
+		if (pagenr < 256)
+			return 1;
+
+		return 0;
+	}
+
+	return 1;
 }
 
 void free_init_pages(char *what, unsigned long begin, unsigned long end)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/kasan_init_64.c linux-libre-4.9.52-gnu/arch/x86/mm/kasan_init_64.c
--- linux-libre-4.9-gnu/arch/x86/mm/kasan_init_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/kasan_init_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -1,3 +1,4 @@
+#define DISABLE_BRANCH_PROFILING
 #define pr_fmt(fmt) "kasan: " fmt
 #include <linux/bootmem.h>
 #include <linux/kasan.h>
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/kaslr.c linux-libre-4.9.52-gnu/arch/x86/mm/kaslr.c
--- linux-libre-4.9-gnu/arch/x86/mm/kaslr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/kaslr.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,7 +48,7 @@ static const unsigned long vaddr_start =
 #if defined(CONFIG_X86_ESPFIX64)
 static const unsigned long vaddr_end = ESPFIX_BASE_ADDR;
 #elif defined(CONFIG_EFI)
-static const unsigned long vaddr_end = EFI_VA_START;
+static const unsigned long vaddr_end = EFI_VA_END;
 #else
 static const unsigned long vaddr_end = __START_KERNEL_map;
 #endif
@@ -105,7 +105,7 @@ void __init kernel_randomize_memory(void
 	 */
 	BUILD_BUG_ON(vaddr_start >= vaddr_end);
 	BUILD_BUG_ON(IS_ENABLED(CONFIG_X86_ESPFIX64) &&
-		     vaddr_end >= EFI_VA_START);
+		     vaddr_end >= EFI_VA_END);
 	BUILD_BUG_ON((IS_ENABLED(CONFIG_X86_ESPFIX64) ||
 		      IS_ENABLED(CONFIG_EFI)) &&
 		     vaddr_end >= __START_KERNEL_map);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/mpx.c linux-libre-4.9.52-gnu/arch/x86/mm/mpx.c
--- linux-libre-4.9-gnu/arch/x86/mm/mpx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/mpx.c	2017-09-27 08:40:05.000000000 -0400
@@ -293,7 +293,7 @@ siginfo_t *mpx_generate_siginfo(struct p
 	 * We were not able to extract an address from the instruction,
 	 * probably because there was something invalid in it.
 	 */
-	if (info->si_addr == (void *)-1) {
+	if (info->si_addr == (void __user *)-1) {
 		err = -EINVAL;
 		goto err_out;
 	}
@@ -525,15 +525,7 @@ int mpx_handle_bd_fault(void)
 	if (!kernel_managing_mpx_tables(current->mm))
 		return -EINVAL;
 
-	if (do_mpx_bt_fault()) {
-		force_sig(SIGSEGV, current);
-		/*
-		 * The force_sig() is essentially "handling" this
-		 * exception, so we do not pass up the error
-		 * from do_mpx_bt_fault().
-		 */
-	}
-	return 0;
+	return do_mpx_bt_fault();
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/numa_32.c linux-libre-4.9.52-gnu/arch/x86/mm/numa_32.c
--- linux-libre-4.9-gnu/arch/x86/mm/numa_32.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/numa_32.c	2017-09-27 08:40:05.000000000 -0400
@@ -100,5 +100,6 @@ void __init initmem_init(void)
 	printk(KERN_DEBUG "High memory starts at vaddr %08lx\n",
 			(ulong) pfn_to_kaddr(highstart_pfn));
 
+	__vmalloc_start_set = true;
 	setup_bootmem_allocator();
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/pat.c linux-libre-4.9.52-gnu/arch/x86/mm/pat.c
--- linux-libre-4.9-gnu/arch/x86/mm/pat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/pat.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,14 +36,14 @@
 #undef pr_fmt
 #define pr_fmt(fmt) "" fmt
 
-static bool boot_cpu_done;
-
-static int __read_mostly __pat_enabled = IS_ENABLED(CONFIG_X86_PAT);
-static void init_cache_modes(void);
+static bool __read_mostly boot_cpu_done;
+static bool __read_mostly pat_disabled = !IS_ENABLED(CONFIG_X86_PAT);
+static bool __read_mostly pat_initialized;
+static bool __read_mostly init_cm_done;
 
 void pat_disable(const char *reason)
 {
-	if (!__pat_enabled)
+	if (pat_disabled)
 		return;
 
 	if (boot_cpu_done) {
@@ -51,10 +51,8 @@ void pat_disable(const char *reason)
 		return;
 	}
 
-	__pat_enabled = 0;
+	pat_disabled = true;
 	pr_info("x86/PAT: %s\n", reason);
-
-	init_cache_modes();
 }
 
 static int __init nopat(char *str)
@@ -66,7 +64,7 @@ early_param("nopat", nopat);
 
 bool pat_enabled(void)
 {
-	return !!__pat_enabled;
+	return pat_initialized;
 }
 EXPORT_SYMBOL_GPL(pat_enabled);
 
@@ -204,6 +202,8 @@ static void __init_cache_modes(u64 pat)
 		update_cache_mode_entry(i, cache);
 	}
 	pr_info("x86/PAT: Configuration [0-7]: %s\n", pat_msg);
+
+	init_cm_done = true;
 }
 
 #define PAT(x, y)	((u64)PAT_ ## y << ((x)*8))
@@ -224,6 +224,7 @@ static void pat_bsp_init(u64 pat)
 	}
 
 	wrmsrl(MSR_IA32_CR_PAT, pat);
+	pat_initialized = true;
 
 	__init_cache_modes(pat);
 }
@@ -241,10 +242,9 @@ static void pat_ap_init(u64 pat)
 	wrmsrl(MSR_IA32_CR_PAT, pat);
 }
 
-static void init_cache_modes(void)
+void init_cache_modes(void)
 {
 	u64 pat = 0;
-	static int init_cm_done;
 
 	if (init_cm_done)
 		return;
@@ -286,8 +286,6 @@ static void init_cache_modes(void)
 	}
 
 	__init_cache_modes(pat);
-
-	init_cm_done = 1;
 }
 
 /**
@@ -305,10 +303,8 @@ void pat_init(void)
 	u64 pat;
 	struct cpuinfo_x86 *c = &boot_cpu_data;
 
-	if (!pat_enabled()) {
-		init_cache_modes();
+	if (pat_disabled)
 		return;
-	}
 
 	if ((c->x86_vendor == X86_VENDOR_INTEL) &&
 	    (((c->x86 == 0x6) && (c->x86_model <= 0xd)) ||
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/mm/tlb.c linux-libre-4.9.52-gnu/arch/x86/mm/tlb.c
--- linux-libre-4.9-gnu/arch/x86/mm/tlb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/mm/tlb.c	2017-09-27 08:40:05.000000000 -0400
@@ -263,8 +263,6 @@ void native_flush_tlb_others(const struc
 {
 	struct flush_tlb_info info;
 
-	if (end == 0)
-		end = start + PAGE_SIZE;
 	info.flush_mm = mm;
 	info.flush_start = start;
 	info.flush_end = end;
@@ -393,7 +391,7 @@ void flush_tlb_page(struct vm_area_struc
 	}
 
 	if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
-		flush_tlb_others(mm_cpumask(mm), mm, start, 0UL);
+		flush_tlb_others(mm_cpumask(mm), mm, start, start + PAGE_SIZE);
 
 	preempt_enable();
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/net/bpf_jit_comp.c linux-libre-4.9.52-gnu/arch/x86/net/bpf_jit_comp.c
--- linux-libre-4.9-gnu/arch/x86/net/bpf_jit_comp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/net/bpf_jit_comp.c	2017-09-27 08:40:05.000000000 -0400
@@ -1172,6 +1172,8 @@ struct bpf_prog *bpf_int_jit_compile(str
 		set_memory_ro((unsigned long)header, header->pages);
 		prog->bpf_func = (void *)image;
 		prog->jited = 1;
+	} else {
+		prog = orig_prog;
 	}
 
 out_addrs:
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/pci/acpi.c linux-libre-4.9.52-gnu/arch/x86/pci/acpi.c
--- linux-libre-4.9-gnu/arch/x86/pci/acpi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/pci/acpi.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,6 +114,16 @@ static const struct dmi_system_id pci_cr
 			DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
 		},
 	},
+	/* https://bugzilla.kernel.org/show_bug.cgi?id=42606 */
+	{
+		.callback = set_nouse_crs,
+		.ident = "Supermicro X8DTH",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X8DTH-i/6/iF/6F"),
+			DMI_MATCH(DMI_BIOS_VERSION, "2.0a"),
+		},
+	},
 
 	/* https://bugzilla.kernel.org/show_bug.cgi?id=15362 */
 	{
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/pci/fixup.c linux-libre-4.9.52-gnu/arch/x86/pci/fixup.c
--- linux-libre-4.9-gnu/arch/x86/pci/fixup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/pci/fixup.c	2017-09-27 08:40:05.000000000 -0400
@@ -571,3 +571,35 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_IN
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6f60, pci_invalid_bar);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_invalid_bar);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_invalid_bar);
+
+/*
+ * Apple MacBook Pro: Avoid [mem 0x7fa00000-0x7fbfffff]
+ *
+ * Using the [mem 0x7fa00000-0x7fbfffff] region, e.g., by assigning it to
+ * the 00:1c.0 Root Port, causes a conflict with [io 0x1804], which is used
+ * for soft poweroff and suspend-to-RAM.
+ *
+ * As far as we know, this is related to the address space, not to the Root
+ * Port itself.  Attaching the quirk to the Root Port is a convenience, but
+ * it could probably also be a standalone DMI quirk.
+ *
+ * https://bugzilla.kernel.org/show_bug.cgi?id=103211
+ */
+static void quirk_apple_mbp_poweroff(struct pci_dev *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+
+	if ((!dmi_match(DMI_PRODUCT_NAME, "MacBookPro11,4") &&
+	     !dmi_match(DMI_PRODUCT_NAME, "MacBookPro11,5")) ||
+	    pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x1c, 0))
+		return;
+
+	res = request_mem_region(0x7fa00000, 0x200000,
+				 "MacBook Pro poweroff workaround");
+	if (res)
+		dev_info(dev, "claimed %s %pR\n", res->name, res);
+	else
+		dev_info(dev, "can't work around MacBook Pro poweroff issue\n");
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8c10, quirk_apple_mbp_poweroff);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/pci/xen.c linux-libre-4.9.52-gnu/arch/x86/pci/xen.c
--- linux-libre-4.9-gnu/arch/x86/pci/xen.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/pci/xen.c	2017-09-27 08:40:05.000000000 -0400
@@ -234,23 +234,14 @@ static int xen_hvm_setup_msi_irqs(struct
 		return 1;
 
 	for_each_pci_msi_entry(msidesc, dev) {
-		__pci_read_msi_msg(msidesc, &msg);
-		pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) |
-			((msg.address_lo >> MSI_ADDR_DEST_ID_SHIFT) & 0xff);
-		if (msg.data != XEN_PIRQ_MSI_DATA ||
-		    xen_irq_from_pirq(pirq) < 0) {
-			pirq = xen_allocate_pirq_msi(dev, msidesc);
-			if (pirq < 0) {
-				irq = -ENODEV;
-				goto error;
-			}
-			xen_msi_compose_msg(dev, pirq, &msg);
-			__pci_write_msi_msg(msidesc, &msg);
-			dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
-		} else {
-			dev_dbg(&dev->dev,
-				"xen: msi already bound to pirq=%d\n", pirq);
+		pirq = xen_allocate_pirq_msi(dev, msidesc);
+		if (pirq < 0) {
+			irq = -ENODEV;
+			goto error;
 		}
+		xen_msi_compose_msg(dev, pirq, &msg);
+		__pci_write_msi_msg(msidesc, &msg);
+		dev_dbg(&dev->dev, "xen: msi bound to pirq=%d\n", pirq);
 		irq = xen_bind_pirq_msi_to_irq(dev, msidesc, pirq,
 					       (type == PCI_CAP_ID_MSI) ? nvec : 1,
 					       (type == PCI_CAP_ID_MSIX) ?
@@ -456,7 +447,7 @@ void __init xen_msi_init(void)
 
 int __init pci_xen_hvm_init(void)
 {
-	if (!xen_feature(XENFEAT_hvm_pirqs))
+	if (!xen_have_vector_callback || !xen_feature(XENFEAT_hvm_pirqs))
 		return 0;
 
 #ifdef CONFIG_ACPI
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/efi/efi_64.c linux-libre-4.9.52-gnu/arch/x86/platform/efi/efi_64.c
--- linux-libre-4.9-gnu/arch/x86/platform/efi/efi_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/efi/efi_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -269,6 +269,22 @@ int __init efi_setup_page_tables(unsigne
 	efi_scratch.use_pgd = true;
 
 	/*
+	 * Certain firmware versions are way too sentimential and still believe
+	 * they are exclusive and unquestionable owners of the first physical page,
+	 * even though they explicitly mark it as EFI_CONVENTIONAL_MEMORY
+	 * (but then write-access it later during SetVirtualAddressMap()).
+	 *
+	 * Create a 1:1 mapping for this page, to avoid triple faults during early
+	 * boot with such firmware. We are free to hand this page to the BIOS,
+	 * as trim_bios_range() will reserve the first page and isolate it away
+	 * from memory allocators anyway.
+	 */
+	if (kernel_map_pages_in_pgd(pgd, 0x0, 0x0, 1, _PAGE_RW)) {
+		pr_err("Failed to create 1:1 mapping for the first page!\n");
+		return 1;
+	}
+
+	/*
 	 * When making calls to the firmware everything needs to be 1:1
 	 * mapped and addressable with 32-bit pointers. Map the kernel
 	 * text and allocate a new stack because we can't rely on the
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/efi/efi.c linux-libre-4.9.52-gnu/arch/x86/platform/efi/efi.c
--- linux-libre-4.9-gnu/arch/x86/platform/efi/efi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/efi/efi.c	2017-09-27 08:40:05.000000000 -0400
@@ -210,6 +210,70 @@ int __init efi_memblock_x86_reserve_rang
 	return 0;
 }
 
+#define OVERFLOW_ADDR_SHIFT	(64 - EFI_PAGE_SHIFT)
+#define OVERFLOW_ADDR_MASK	(U64_MAX << OVERFLOW_ADDR_SHIFT)
+#define U64_HIGH_BIT		(~(U64_MAX >> 1))
+
+static bool __init efi_memmap_entry_valid(const efi_memory_desc_t *md, int i)
+{
+	u64 end = (md->num_pages << EFI_PAGE_SHIFT) + md->phys_addr - 1;
+	u64 end_hi = 0;
+	char buf[64];
+
+	if (md->num_pages == 0) {
+		end = 0;
+	} else if (md->num_pages > EFI_PAGES_MAX ||
+		   EFI_PAGES_MAX - md->num_pages <
+		   (md->phys_addr >> EFI_PAGE_SHIFT)) {
+		end_hi = (md->num_pages & OVERFLOW_ADDR_MASK)
+			>> OVERFLOW_ADDR_SHIFT;
+
+		if ((md->phys_addr & U64_HIGH_BIT) && !(end & U64_HIGH_BIT))
+			end_hi += 1;
+	} else {
+		return true;
+	}
+
+	pr_warn_once(FW_BUG "Invalid EFI memory map entries:\n");
+
+	if (end_hi) {
+		pr_warn("mem%02u: %s range=[0x%016llx-0x%llx%016llx] (invalid)\n",
+			i, efi_md_typeattr_format(buf, sizeof(buf), md),
+			md->phys_addr, end_hi, end);
+	} else {
+		pr_warn("mem%02u: %s range=[0x%016llx-0x%016llx] (invalid)\n",
+			i, efi_md_typeattr_format(buf, sizeof(buf), md),
+			md->phys_addr, end);
+	}
+	return false;
+}
+
+static void __init efi_clean_memmap(void)
+{
+	efi_memory_desc_t *out = efi.memmap.map;
+	const efi_memory_desc_t *in = out;
+	const efi_memory_desc_t *end = efi.memmap.map_end;
+	int i, n_removal;
+
+	for (i = n_removal = 0; in < end; i++) {
+		if (efi_memmap_entry_valid(in, i)) {
+			if (out != in)
+				memcpy(out, in, efi.memmap.desc_size);
+			out = (void *)out + efi.memmap.desc_size;
+		} else {
+			n_removal++;
+		}
+		in = (void *)in + efi.memmap.desc_size;
+	}
+
+	if (n_removal > 0) {
+		u64 size = efi.memmap.nr_map - n_removal;
+
+		pr_warn("Removing %d invalid memory map entries.\n", n_removal);
+		efi_memmap_install(efi.memmap.phys_map, size);
+	}
+}
+
 void __init efi_print_memmap(void)
 {
 	efi_memory_desc_t *md;
@@ -472,6 +536,8 @@ void __init efi_init(void)
 		}
 	}
 
+	efi_clean_memmap();
+
 	if (efi_enabled(EFI_DBG))
 		efi_print_memmap();
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/efi/quirks.c linux-libre-4.9.52-gnu/arch/x86/platform/efi/quirks.c
--- linux-libre-4.9-gnu/arch/x86/platform/efi/quirks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/efi/quirks.c	2017-09-27 08:40:05.000000000 -0400
@@ -201,6 +201,10 @@ void __init efi_arch_mem_reserve(phys_ad
 		return;
 	}
 
+	/* No need to reserve regions that will never be freed. */
+	if (md.attribute & EFI_MEMORY_RUNTIME)
+		return;
+
 	size += addr % EFI_PAGE_SIZE;
 	size = round_up(size, EFI_PAGE_SIZE);
 	addr = round_down(addr, EFI_PAGE_SIZE);
@@ -214,7 +218,7 @@ void __init efi_arch_mem_reserve(phys_ad
 
 	new_size = efi.memmap.desc_size * num_entries;
 
-	new_phys = memblock_alloc(new_size, 0);
+	new_phys = efi_memmap_alloc(num_entries);
 	if (!new_phys) {
 		pr_err("Could not allocate boot services memmap\n");
 		return;
@@ -354,8 +358,11 @@ void __init efi_free_boot_services(void)
 		free_bootmem_late(start, size);
 	}
 
+	if (!num_entries)
+		return;
+
 	new_size = efi.memmap.desc_size * num_entries;
-	new_phys = memblock_alloc(new_size, 0);
+	new_phys = efi_memmap_alloc(num_entries);
 	if (!new_phys) {
 		pr_err("Failed to allocate new EFI memmap\n");
 		return;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/goldfish/goldfish.c linux-libre-4.9.52-gnu/arch/x86/platform/goldfish/goldfish.c
--- linux-libre-4.9-gnu/arch/x86/platform/goldfish/goldfish.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/goldfish/goldfish.c	2017-09-27 08:40:05.000000000 -0400
@@ -42,10 +42,22 @@ static struct resource goldfish_pdev_bus
 	}
 };
 
+static bool goldfish_enable __initdata;
+
+static int __init goldfish_setup(char *str)
+{
+	goldfish_enable = true;
+	return 0;
+}
+__setup("goldfish", goldfish_setup);
+
 static int __init goldfish_init(void)
 {
+	if (!goldfish_enable)
+		return -ENODEV;
+
 	platform_device_register_simple("goldfish_pdev_bus", -1,
-						goldfish_pdev_bus_resources, 2);
+					goldfish_pdev_bus_resources, 2);
 	return 0;
 }
 device_initcall(goldfish_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/Makefile linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/Makefile
--- linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -15,7 +15,7 @@ obj-$(subst m,y,$(CONFIG_INTEL_MID_POWER
 obj-$(subst m,y,$(CONFIG_GPIO_INTEL_PMIC)) += platform_pmic_gpio.o
 obj-$(subst m,y,$(CONFIG_INTEL_MFLD_THERMAL)) += platform_msic_thermal.o
 # SPI Devices
-obj-$(subst m,y,$(CONFIG_SPI_SPIDEV)) += platform_spidev.o
+obj-$(subst m,y,$(CONFIG_SPI_SPIDEV)) += platform_mrfld_spidev.o
 # I2C Devices
 obj-$(subst m,y,$(CONFIG_SENSORS_EMC1403)) += platform_emc1403.o
 obj-$(subst m,y,$(CONFIG_SENSORS_LIS3LV02D)) += platform_lis331.o
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_spidev.c linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_spidev.c
--- linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_spidev.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_spidev.c	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,54 @@
+/*
+ * spidev platform data initilization file
+ *
+ * (C) Copyright 2014, 2016 Intel Corporation
+ * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ *	    Dan O'Donovan <dan@emutex.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/spi/pxa2xx_spi.h>
+#include <linux/spi/spi.h>
+
+#include <asm/intel-mid.h>
+
+#define MRFLD_SPI_DEFAULT_DMA_BURST	8
+#define MRFLD_SPI_DEFAULT_TIMEOUT	500
+
+/* GPIO pin for spidev chipselect */
+#define MRFLD_SPIDEV_GPIO_CS		111
+
+static struct pxa2xx_spi_chip spidev_spi_chip = {
+	.dma_burst_size		= MRFLD_SPI_DEFAULT_DMA_BURST,
+	.timeout		= MRFLD_SPI_DEFAULT_TIMEOUT,
+	.gpio_cs		= MRFLD_SPIDEV_GPIO_CS,
+};
+
+static void __init *spidev_platform_data(void *info)
+{
+	struct spi_board_info *spi_info = info;
+
+	if (intel_mid_identify_cpu() != INTEL_MID_CPU_CHIP_TANGIER)
+		return ERR_PTR(-ENODEV);
+
+	spi_info->mode = SPI_MODE_0;
+	spi_info->controller_data = &spidev_spi_chip;
+
+	return NULL;
+}
+
+static const struct devs_id spidev_dev_id __initconst = {
+	.name			= "spidev",
+	.type			= SFI_DEV_TYPE_SPI,
+	.delay			= 0,
+	.get_platform_data	= &spidev_platform_data,
+};
+
+sfi_device(spidev_dev_id);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c
--- linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/platform_mrfld_wdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -19,7 +19,7 @@
 #include <asm/intel_scu_ipc.h>
 #include <asm/io_apic.h>
 
-#define TANGIER_EXT_TIMER0_MSI 15
+#define TANGIER_EXT_TIMER0_MSI 12
 
 static struct platform_device wdt_dev = {
 	.name = "intel_mid_wdt",
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/platform_spidev.c linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/platform_spidev.c
--- linux-libre-4.9-gnu/arch/x86/platform/intel-mid/device_libs/platform_spidev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/intel-mid/device_libs/platform_spidev.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,50 +0,0 @@
-/*
- * spidev platform data initilization file
- *
- * (C) Copyright 2014, 2016 Intel Corporation
- * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
- *	    Dan O'Donovan <dan@emutex.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- */
-
-#include <linux/init.h>
-#include <linux/sfi.h>
-#include <linux/spi/pxa2xx_spi.h>
-#include <linux/spi/spi.h>
-
-#include <asm/intel-mid.h>
-
-#define MRFLD_SPI_DEFAULT_DMA_BURST	8
-#define MRFLD_SPI_DEFAULT_TIMEOUT	500
-
-/* GPIO pin for spidev chipselect */
-#define MRFLD_SPIDEV_GPIO_CS		111
-
-static struct pxa2xx_spi_chip spidev_spi_chip = {
-	.dma_burst_size		= MRFLD_SPI_DEFAULT_DMA_BURST,
-	.timeout		= MRFLD_SPI_DEFAULT_TIMEOUT,
-	.gpio_cs		= MRFLD_SPIDEV_GPIO_CS,
-};
-
-static void __init *spidev_platform_data(void *info)
-{
-	struct spi_board_info *spi_info = info;
-
-	spi_info->mode = SPI_MODE_0;
-	spi_info->controller_data = &spidev_spi_chip;
-
-	return NULL;
-}
-
-static const struct devs_id spidev_dev_id __initconst = {
-	.name			= "spidev",
-	.type			= SFI_DEV_TYPE_SPI,
-	.delay			= 0,
-	.get_platform_data	= &spidev_platform_data,
-};
-
-sfi_device(spidev_dev_id);
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/platform/mellanox/mlx-platform.c linux-libre-4.9.52-gnu/arch/x86/platform/mellanox/mlx-platform.c
--- linux-libre-4.9-gnu/arch/x86/platform/mellanox/mlx-platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/platform/mellanox/mlx-platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -233,7 +233,7 @@ static int __init mlxplat_init(void)
 	return 0;
 
 fail_platform_mux_register:
-	for (i--; i > 0 ; i--)
+	while (--i >= 0)
 		platform_device_unregister(priv->pdev_mux[i]);
 	platform_device_unregister(priv->pdev_i2c);
 fail_alloc:
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/tools/relocs.c linux-libre-4.9.52-gnu/arch/x86/tools/relocs.c
--- linux-libre-4.9-gnu/arch/x86/tools/relocs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/tools/relocs.c	2017-09-27 08:40:05.000000000 -0400
@@ -992,11 +992,12 @@ static void emit_relocs(int as_text, int
 		die("Segment relocations found but --realmode not specified\n");
 
 	/* Order the relocations for more efficient processing */
-	sort_relocs(&relocs16);
 	sort_relocs(&relocs32);
 #if ELF_BITS == 64
 	sort_relocs(&relocs32neg);
 	sort_relocs(&relocs64);
+#else
+	sort_relocs(&relocs16);
 #endif
 
 	/* Print the relocations */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/um/ptrace_64.c linux-libre-4.9.52-gnu/arch/x86/um/ptrace_64.c
--- linux-libre-4.9-gnu/arch/x86/um/ptrace_64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/um/ptrace_64.c	2017-09-27 08:40:05.000000000 -0400
@@ -125,7 +125,7 @@ int poke_user(struct task_struct *child,
 	else if ((addr >= offsetof(struct user, u_debugreg[0])) &&
 		(addr <= offsetof(struct user, u_debugreg[7]))) {
 		addr -= offsetof(struct user, u_debugreg[0]);
-		addr = addr >> 2;
+		addr = addr >> 3;
 		if ((addr == 4) || (addr == 5))
 			return -EIO;
 		child->thread.arch.debugregs[addr] = data;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/xen/apic.c linux-libre-4.9.52-gnu/arch/x86/xen/apic.c
--- linux-libre-4.9-gnu/arch/x86/xen/apic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/xen/apic.c	2017-09-27 08:40:05.000000000 -0400
@@ -145,7 +145,7 @@ static void xen_silent_inquire(int apici
 static int xen_cpu_present_to_apicid(int cpu)
 {
 	if (cpu_present(cpu))
-		return xen_get_apic_id(xen_apic_read(APIC_ID));
+		return cpu_data(cpu).apicid;
 	else
 		return BAD_APICID;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/xen/enlighten.c linux-libre-4.9.52-gnu/arch/x86/xen/enlighten.c
--- linux-libre-4.9-gnu/arch/x86/xen/enlighten.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/xen/enlighten.c	2017-09-27 08:40:05.000000000 -0400
@@ -137,6 +137,8 @@ struct shared_info xen_dummy_shared_info
 void *xen_initial_gdt;
 
 RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
+__read_mostly int xen_have_vector_callback;
+EXPORT_SYMBOL_GPL(xen_have_vector_callback);
 
 static int xen_cpu_up_prepare(unsigned int cpu);
 static int xen_cpu_up_online(unsigned int cpu);
@@ -1521,7 +1523,10 @@ static void __init xen_pvh_early_guest_i
 	if (!xen_feature(XENFEAT_auto_translated_physmap))
 		return;
 
-	BUG_ON(!xen_feature(XENFEAT_hvm_callback_vector));
+	if (!xen_feature(XENFEAT_hvm_callback_vector))
+		return;
+
+	xen_have_vector_callback = 1;
 
 	xen_pvh_early_cpu_init(0, false);
 	xen_pvh_set_cr_flags(0);
@@ -1860,7 +1865,9 @@ static int xen_cpu_up_prepare(unsigned i
 		xen_vcpu_setup(cpu);
 	}
 
-	if (xen_pv_domain() || xen_feature(XENFEAT_hvm_safe_pvclock))
+	if (xen_pv_domain() ||
+	    (xen_have_vector_callback &&
+	     xen_feature(XENFEAT_hvm_safe_pvclock)))
 		xen_setup_timer(cpu);
 
 	rc = xen_smp_intr_init(cpu);
@@ -1876,7 +1883,9 @@ static int xen_cpu_dead(unsigned int cpu
 {
 	xen_smp_intr_free(cpu);
 
-	if (xen_pv_domain() || xen_feature(XENFEAT_hvm_safe_pvclock))
+	if (xen_pv_domain() ||
+	    (xen_have_vector_callback &&
+	     xen_feature(XENFEAT_hvm_safe_pvclock)))
 		xen_teardown_timer(cpu);
 
 	return 0;
@@ -1915,8 +1924,8 @@ static void __init xen_hvm_guest_init(vo
 
 	xen_panic_handler_init();
 
-	BUG_ON(!xen_feature(XENFEAT_hvm_callback_vector));
-
+	if (xen_feature(XENFEAT_hvm_callback_vector))
+		xen_have_vector_callback = 1;
 	xen_hvm_smp_init();
 	WARN_ON(xen_cpuhp_setup());
 	xen_unplug_emulated_devices();
@@ -1954,7 +1963,7 @@ bool xen_hvm_need_lapic(void)
 		return false;
 	if (!xen_hvm_domain())
 		return false;
-	if (xen_feature(XENFEAT_hvm_pirqs))
+	if (xen_feature(XENFEAT_hvm_pirqs) && xen_have_vector_callback)
 		return false;
 	return true;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/xen/mmu.c linux-libre-4.9.52-gnu/arch/x86/xen/mmu.c
--- linux-libre-4.9-gnu/arch/x86/xen/mmu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/xen/mmu.c	2017-09-27 08:40:05.000000000 -0400
@@ -2028,7 +2028,8 @@ static unsigned long __init xen_read_phy
 
 /*
  * Translate a virtual address to a physical one without relying on mapped
- * page tables.
+ * page tables. Don't rely on big pages being aligned in (guest) physical
+ * space!
  */
 static phys_addr_t __init xen_early_virt_to_phys(unsigned long vaddr)
 {
@@ -2049,7 +2050,7 @@ static phys_addr_t __init xen_early_virt
 						       sizeof(pud)));
 	if (!pud_present(pud))
 		return 0;
-	pa = pud_pfn(pud) << PAGE_SHIFT;
+	pa = pud_val(pud) & PTE_PFN_MASK;
 	if (pud_large(pud))
 		return pa + (vaddr & ~PUD_MASK);
 
@@ -2057,7 +2058,7 @@ static phys_addr_t __init xen_early_virt
 						       sizeof(pmd)));
 	if (!pmd_present(pmd))
 		return 0;
-	pa = pmd_pfn(pmd) << PAGE_SHIFT;
+	pa = pmd_val(pmd) & PTE_PFN_MASK;
 	if (pmd_large(pmd))
 		return pa + (vaddr & ~PMD_MASK);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/xen/pci-swiotlb-xen.c linux-libre-4.9.52-gnu/arch/x86/xen/pci-swiotlb-xen.c
--- linux-libre-4.9-gnu/arch/x86/xen/pci-swiotlb-xen.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/xen/pci-swiotlb-xen.c	2017-09-27 08:40:05.000000000 -0400
@@ -49,7 +49,7 @@ int __init pci_xen_swiotlb_detect(void)
 	 * activate this IOMMU. If running as PV privileged, activate it
 	 * irregardless.
 	 */
-	if ((xen_initial_domain() || swiotlb || swiotlb_force))
+	if (xen_initial_domain() || swiotlb || swiotlb_force == SWIOTLB_FORCE)
 		xen_swiotlb = 1;
 
 	/* If we are running under Xen, we MUST disable the native SWIOTLB.
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/xen/setup.c linux-libre-4.9.52-gnu/arch/x86/xen/setup.c
--- linux-libre-4.9-gnu/arch/x86/xen/setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/xen/setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -713,10 +713,9 @@ static void __init xen_reserve_xen_mfnli
 		size = PFN_PHYS(xen_start_info->nr_p2m_frames);
 	}
 
-	if (!xen_is_e820_reserved(start, size)) {
-		memblock_reserve(start, size);
+	memblock_reserve(start, size);
+	if (!xen_is_e820_reserved(start, size))
 		return;
-	}
 
 #ifdef CONFIG_X86_32
 	/*
@@ -727,6 +726,7 @@ static void __init xen_reserve_xen_mfnli
 	BUG();
 #else
 	xen_relocate_p2m();
+	memblock_free(start, size);
 #endif
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/xen/smp.c linux-libre-4.9.52-gnu/arch/x86/xen/smp.c
--- linux-libre-4.9-gnu/arch/x86/xen/smp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/xen/smp.c	2017-09-27 08:40:05.000000000 -0400
@@ -87,12 +87,6 @@ static void cpu_bringup(void)
 	cpu_data(cpu).x86_max_cores = 1;
 	set_cpu_sibling_map(cpu);
 
-	/*
-	 * identify_cpu() may have set logical_pkg_id to -1 due
-	 * to incorrect phys_proc_id. Let's re-comupte it.
-	 */
-	topology_update_package_map(apic->cpu_present_to_apicid(cpu), cpu);
-
 	xen_setup_cpu_clockevents();
 
 	notify_cpu_starting(cpu);
@@ -771,6 +765,8 @@ static void __init xen_hvm_smp_prepare_c
 
 void __init xen_hvm_smp_init(void)
 {
+	if (!xen_have_vector_callback)
+		return;
 	smp_ops.smp_prepare_cpus = xen_hvm_smp_prepare_cpus;
 	smp_ops.smp_send_reschedule = xen_smp_send_reschedule;
 	smp_ops.cpu_die = xen_cpu_die;
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/x86/xen/time.c linux-libre-4.9.52-gnu/arch/x86/xen/time.c
--- linux-libre-4.9-gnu/arch/x86/xen/time.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/x86/xen/time.c	2017-09-27 08:40:05.000000000 -0400
@@ -432,6 +432,11 @@ static void xen_hvm_setup_cpu_clockevent
 
 void __init xen_hvm_init_time_ops(void)
 {
+	/* vector callback is needed otherwise we cannot receive interrupts
+	 * on cpu > 0 and at this point we don't know how many cpus are
+	 * available */
+	if (!xen_have_vector_callback)
+		return;
 	if (!xen_feature(XENFEAT_hvm_safe_pvclock)) {
 		printk(KERN_INFO "Xen doesn't support pvclock on HVM,"
 				"disable pv timer\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/include/asm/irq.h linux-libre-4.9.52-gnu/arch/xtensa/include/asm/irq.h
--- linux-libre-4.9-gnu/arch/xtensa/include/asm/irq.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/include/asm/irq.h	2017-09-27 08:40:05.000000000 -0400
@@ -29,7 +29,8 @@ static inline void variant_irq_disable(u
 # define PLATFORM_NR_IRQS 0
 #endif
 #define XTENSA_NR_IRQS XCHAL_NUM_INTERRUPTS
-#define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS)
+#define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS + 1)
+#define XTENSA_PIC_LINUX_IRQ(hwirq) ((hwirq) + 1)
 
 #if VARIANT_NR_IRQS == 0
 static inline void variant_init_irq(void) { }
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/include/asm/page.h linux-libre-4.9.52-gnu/arch/xtensa/include/asm/page.h
--- linux-libre-4.9-gnu/arch/xtensa/include/asm/page.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/include/asm/page.h	2017-09-27 08:40:05.000000000 -0400
@@ -164,8 +164,21 @@ void copy_user_highpage(struct page *to,
 
 #define ARCH_PFN_OFFSET		(PHYS_OFFSET >> PAGE_SHIFT)
 
+#ifdef CONFIG_MMU
+static inline unsigned long ___pa(unsigned long va)
+{
+	unsigned long off = va - PAGE_OFFSET;
+
+	if (off >= XCHAL_KSEG_SIZE)
+		off -= XCHAL_KSEG_SIZE;
+
+	return off + PHYS_OFFSET;
+}
+#define __pa(x)	___pa((unsigned long)(x))
+#else
 #define __pa(x)	\
 	((unsigned long) (x) - PAGE_OFFSET + PHYS_OFFSET)
+#endif
 #define __va(x)	\
 	((void *)((unsigned long) (x) - PHYS_OFFSET + PAGE_OFFSET))
 #define pfn_valid(pfn) \
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/kernel/irq.c linux-libre-4.9.52-gnu/arch/xtensa/kernel/irq.c
--- linux-libre-4.9-gnu/arch/xtensa/kernel/irq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/kernel/irq.c	2017-09-27 08:40:05.000000000 -0400
@@ -34,11 +34,6 @@ asmlinkage void do_IRQ(int hwirq, struct
 {
 	int irq = irq_find_mapping(NULL, hwirq);
 
-	if (hwirq >= NR_IRQS) {
-		printk(KERN_EMERG "%s: cannot handle IRQ %d\n",
-				__func__, hwirq);
-	}
-
 #ifdef CONFIG_DEBUG_STACKOVERFLOW
 	/* Debugging check for stack overflow: is there less than 1KB free? */
 	{
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/kernel/setup.c linux-libre-4.9.52-gnu/arch/xtensa/kernel/setup.c
--- linux-libre-4.9-gnu/arch/xtensa/kernel/setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/kernel/setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -133,6 +133,8 @@ static int __init parse_tag_initrd(const
 
 __tagtable(BP_TAG_INITRD, parse_tag_initrd);
 
+#endif /* CONFIG_BLK_DEV_INITRD */
+
 #ifdef CONFIG_OF
 
 static int __init parse_tag_fdt(const bp_tag_t *tag)
@@ -145,8 +147,6 @@ __tagtable(BP_TAG_FDT, parse_tag_fdt);
 
 #endif /* CONFIG_OF */
 
-#endif /* CONFIG_BLK_DEV_INITRD */
-
 static int __init parse_tag_cmdline(const bp_tag_t* tag)
 {
 	strlcpy(command_line, (char *)(tag->data), COMMAND_LINE_SIZE);
@@ -540,7 +540,7 @@ subsys_initcall(topology_init);
 
 void cpu_reset(void)
 {
-#if XCHAL_HAVE_PTP_MMU
+#if XCHAL_HAVE_PTP_MMU && IS_ENABLED(CONFIG_MMU)
 	local_irq_disable();
 	/*
 	 * We have full MMU: all autoload ways, ways 7, 8 and 9 of DTLB must
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/kernel/syscall.c linux-libre-4.9.52-gnu/arch/xtensa/kernel/syscall.c
--- linux-libre-4.9-gnu/arch/xtensa/kernel/syscall.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/kernel/syscall.c	2017-09-27 08:40:05.000000000 -0400
@@ -87,7 +87,7 @@ unsigned long arch_get_unmapped_area(str
 		/* At this point:  (!vmm || addr < vmm->vm_end). */
 		if (TASK_SIZE - len < addr)
 			return -ENOMEM;
-		if (!vmm || addr + len <= vmm->vm_start)
+		if (!vmm || addr + len <= vm_start_gap(vmm))
 			return addr;
 		addr = vmm->vm_end;
 		if (flags & MAP_SHARED)
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/kernel/xtensa_ksyms.c linux-libre-4.9.52-gnu/arch/xtensa/kernel/xtensa_ksyms.c
--- linux-libre-4.9-gnu/arch/xtensa/kernel/xtensa_ksyms.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/kernel/xtensa_ksyms.c	2017-09-27 08:40:05.000000000 -0400
@@ -94,13 +94,11 @@ unsigned long __sync_fetch_and_or_4(unsi
 }
 EXPORT_SYMBOL(__sync_fetch_and_or_4);
 
-#ifdef CONFIG_NET
 /*
  * Networking support
  */
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(csum_partial_copy_generic);
-#endif /* CONFIG_NET */
 
 /*
  * Architecture-specific symbols
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/mm/cache.c linux-libre-4.9.52-gnu/arch/xtensa/mm/cache.c
--- linux-libre-4.9-gnu/arch/xtensa/mm/cache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/mm/cache.c	2017-09-27 08:40:05.000000000 -0400
@@ -103,6 +103,7 @@ void clear_user_highpage(struct page *pa
 	clear_page_alias(kvaddr, paddr);
 	preempt_enable();
 }
+EXPORT_SYMBOL(clear_user_highpage);
 
 void copy_user_highpage(struct page *dst, struct page *src,
 			unsigned long vaddr, struct vm_area_struct *vma)
@@ -119,10 +120,7 @@ void copy_user_highpage(struct page *dst
 	copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);
 	preempt_enable();
 }
-
-#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
-
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+EXPORT_SYMBOL(copy_user_highpage);
 
 /*
  * Any time the kernel writes to a user page cache page, or it is about to
@@ -176,7 +174,7 @@ void flush_dcache_page(struct page *page
 
 	/* There shouldn't be an entry in the cache for this page anymore. */
 }
-
+EXPORT_SYMBOL(flush_dcache_page);
 
 /*
  * For now, flush the whole cache. FIXME??
@@ -188,6 +186,7 @@ void local_flush_cache_range(struct vm_a
 	__flush_invalidate_dcache_all();
 	__invalidate_icache_all();
 }
+EXPORT_SYMBOL(local_flush_cache_range);
 
 /* 
  * Remove any entry in the cache for this page. 
@@ -207,8 +206,9 @@ void local_flush_cache_page(struct vm_ar
 	__flush_invalidate_dcache_page_alias(virt, phys);
 	__invalidate_icache_page_alias(virt, phys);
 }
+EXPORT_SYMBOL(local_flush_cache_page);
 
-#endif
+#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */
 
 void
 update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
@@ -225,7 +225,7 @@ update_mmu_cache(struct vm_area_struct *
 
 	flush_tlb_page(vma, addr);
 
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
 
 	if (!PageReserved(page) && test_bit(PG_arch_1, &page->flags)) {
 		unsigned long phys = page_to_phys(page);
@@ -256,7 +256,7 @@ update_mmu_cache(struct vm_area_struct *
  * flush_dcache_page() on the page.
  */
 
-#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK
+#if (DCACHE_WAY_SIZE > PAGE_SIZE)
 
 void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
 		unsigned long vaddr, void *dst, const void *src,
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h linux-libre-4.9.52-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h
--- linux-libre-4.9-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/platforms/xtfpga/include/platform/hardware.h	2017-09-27 08:40:05.000000000 -0400
@@ -24,16 +24,18 @@
 
 /* Interrupt configuration. */
 
-#define PLATFORM_NR_IRQS	10
+#define PLATFORM_NR_IRQS	0
 
 /* Default assignment of LX60 devices to external interrupts. */
 
 #ifdef CONFIG_XTENSA_MX
 #define DUART16552_INTNUM	XCHAL_EXTINT3_NUM
 #define OETH_IRQ		XCHAL_EXTINT4_NUM
+#define C67X00_IRQ		XCHAL_EXTINT8_NUM
 #else
 #define DUART16552_INTNUM	XCHAL_EXTINT0_NUM
 #define OETH_IRQ		XCHAL_EXTINT1_NUM
+#define C67X00_IRQ		XCHAL_EXTINT5_NUM
 #endif
 
 /*
@@ -63,5 +65,5 @@
 
 #define C67X00_PADDR		(XCHAL_KIO_PADDR + 0x0D0D0000)
 #define C67X00_SIZE		0x10
-#define C67X00_IRQ		5
+
 #endif /* __XTENSA_XTAVNET_HARDWARE_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/arch/xtensa/platforms/xtfpga/setup.c linux-libre-4.9.52-gnu/arch/xtensa/platforms/xtfpga/setup.c
--- linux-libre-4.9-gnu/arch/xtensa/platforms/xtfpga/setup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/arch/xtensa/platforms/xtfpga/setup.c	2017-09-27 08:40:05.000000000 -0400
@@ -175,8 +175,8 @@ static struct resource ethoc_res[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[2] = { /* IRQ number */
-		.start = OETH_IRQ,
-		.end   = OETH_IRQ,
+		.start = XTENSA_PIC_LINUX_IRQ(OETH_IRQ),
+		.end   = XTENSA_PIC_LINUX_IRQ(OETH_IRQ),
 		.flags = IORESOURCE_IRQ,
 	},
 };
@@ -213,8 +213,8 @@ static struct resource c67x00_res[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = { /* IRQ number */
-		.start = C67X00_IRQ,
-		.end   = C67X00_IRQ,
+		.start = XTENSA_PIC_LINUX_IRQ(C67X00_IRQ),
+		.end   = XTENSA_PIC_LINUX_IRQ(C67X00_IRQ),
 		.flags = IORESOURCE_IRQ,
 	},
 };
@@ -247,7 +247,7 @@ static struct resource serial_resource =
 static struct plat_serial8250_port serial_platform_data[] = {
 	[0] = {
 		.mapbase	= DUART16552_PADDR,
-		.irq		= DUART16552_INTNUM,
+		.irq		= XTENSA_PIC_LINUX_IRQ(DUART16552_INTNUM),
 		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
 				  UPF_IOREMAP,
 		.iotype		= XCHAL_HAVE_BE ? UPIO_MEM32BE : UPIO_MEM32,
diff -druNp --no-dereference linux-libre-4.9-gnu/block/bio.c linux-libre-4.9.52-gnu/block/bio.c
--- linux-libre-4.9-gnu/block/bio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/bio.c	2017-09-27 08:40:05.000000000 -0400
@@ -372,10 +372,14 @@ static void punt_bios_to_rescuer(struct
 	bio_list_init(&punt);
 	bio_list_init(&nopunt);
 
-	while ((bio = bio_list_pop(current->bio_list)))
+	while ((bio = bio_list_pop(&current->bio_list[0])))
 		bio_list_add(bio->bi_pool == bs ? &punt : &nopunt, bio);
+	current->bio_list[0] = nopunt;
 
-	*current->bio_list = nopunt;
+	bio_list_init(&nopunt);
+	while ((bio = bio_list_pop(&current->bio_list[1])))
+		bio_list_add(bio->bi_pool == bs ? &punt : &nopunt, bio);
+	current->bio_list[1] = nopunt;
 
 	spin_lock(&bs->rescue_lock);
 	bio_list_merge(&bs->rescue_list, &punt);
@@ -462,7 +466,9 @@ struct bio *bio_alloc_bioset(gfp_t gfp_m
 		 * we retry with the original gfp_flags.
 		 */
 
-		if (current->bio_list && !bio_list_empty(current->bio_list))
+		if (current->bio_list &&
+		    (!bio_list_empty(&current->bio_list[0]) ||
+		     !bio_list_empty(&current->bio_list[1])))
 			gfp_mask &= ~__GFP_DIRECT_RECLAIM;
 
 		p = mempool_alloc(bs->bio_pool, gfp_mask);
diff -druNp --no-dereference linux-libre-4.9-gnu/block/blk-core.c linux-libre-4.9.52-gnu/block/blk-core.c
--- linux-libre-4.9-gnu/block/blk-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/blk-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -233,7 +233,7 @@ EXPORT_SYMBOL(blk_start_queue_async);
  **/
 void blk_start_queue(struct request_queue *q)
 {
-	WARN_ON(!irqs_disabled());
+	WARN_ON(!in_interrupt() && !irqs_disabled());
 
 	queue_flag_clear(QUEUE_FLAG_STOPPED, q);
 	__blk_run_queue(q);
@@ -1994,7 +1994,14 @@ end_io:
  */
 blk_qc_t generic_make_request(struct bio *bio)
 {
-	struct bio_list bio_list_on_stack;
+	/*
+	 * bio_list_on_stack[0] contains bios submitted by the current
+	 * make_request_fn.
+	 * bio_list_on_stack[1] contains bios that were submitted before
+	 * the current make_request_fn, but that haven't been processed
+	 * yet.
+	 */
+	struct bio_list bio_list_on_stack[2];
 	blk_qc_t ret = BLK_QC_T_NONE;
 
 	if (!generic_make_request_checks(bio))
@@ -2011,7 +2018,7 @@ blk_qc_t generic_make_request(struct bio
 	 * should be added at the tail
 	 */
 	if (current->bio_list) {
-		bio_list_add(current->bio_list, bio);
+		bio_list_add(&current->bio_list[0], bio);
 		goto out;
 	}
 
@@ -2030,23 +2037,39 @@ blk_qc_t generic_make_request(struct bio
 	 * bio_list, and call into ->make_request() again.
 	 */
 	BUG_ON(bio->bi_next);
-	bio_list_init(&bio_list_on_stack);
-	current->bio_list = &bio_list_on_stack;
+	bio_list_init(&bio_list_on_stack[0]);
+	current->bio_list = bio_list_on_stack;
 	do {
 		struct request_queue *q = bdev_get_queue(bio->bi_bdev);
 
 		if (likely(blk_queue_enter(q, false) == 0)) {
+			struct bio_list lower, same;
+
+			/* Create a fresh bio_list for all subordinate requests */
+			bio_list_on_stack[1] = bio_list_on_stack[0];
+			bio_list_init(&bio_list_on_stack[0]);
 			ret = q->make_request_fn(q, bio);
 
 			blk_queue_exit(q);
 
-			bio = bio_list_pop(current->bio_list);
+			/* sort new bios into those for a lower level
+			 * and those for the same level
+			 */
+			bio_list_init(&lower);
+			bio_list_init(&same);
+			while ((bio = bio_list_pop(&bio_list_on_stack[0])) != NULL)
+				if (q == bdev_get_queue(bio->bi_bdev))
+					bio_list_add(&same, bio);
+				else
+					bio_list_add(&lower, bio);
+			/* now assemble so we handle the lowest level first */
+			bio_list_merge(&bio_list_on_stack[0], &lower);
+			bio_list_merge(&bio_list_on_stack[0], &same);
+			bio_list_merge(&bio_list_on_stack[0], &bio_list_on_stack[1]);
 		} else {
-			struct bio *bio_next = bio_list_pop(current->bio_list);
-
 			bio_io_error(bio);
-			bio = bio_next;
 		}
+		bio = bio_list_pop(&bio_list_on_stack[0]);
 	} while (bio);
 	current->bio_list = NULL; /* deactivate */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/block/blk-integrity.c linux-libre-4.9.52-gnu/block/blk-integrity.c
--- linux-libre-4.9-gnu/block/blk-integrity.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/blk-integrity.c	2017-09-27 08:40:05.000000000 -0400
@@ -412,12 +412,13 @@ void blk_integrity_register(struct gendi
 
 	bi->flags = BLK_INTEGRITY_VERIFY | BLK_INTEGRITY_GENERATE |
 		template->flags;
-	bi->interval_exp = ilog2(queue_logical_block_size(disk->queue));
+	bi->interval_exp = template->interval_exp ? :
+		ilog2(queue_logical_block_size(disk->queue));
 	bi->profile = template->profile ? template->profile : &nop_profile;
 	bi->tuple_size = template->tuple_size;
 	bi->tag_size = template->tag_size;
 
-	blk_integrity_revalidate(disk);
+	disk->queue->backing_dev_info.capabilities |= BDI_CAP_STABLE_WRITES;
 }
 EXPORT_SYMBOL(blk_integrity_register);
 
@@ -430,26 +431,11 @@ EXPORT_SYMBOL(blk_integrity_register);
  */
 void blk_integrity_unregister(struct gendisk *disk)
 {
-	blk_integrity_revalidate(disk);
+	disk->queue->backing_dev_info.capabilities &= ~BDI_CAP_STABLE_WRITES;
 	memset(&disk->queue->integrity, 0, sizeof(struct blk_integrity));
 }
 EXPORT_SYMBOL(blk_integrity_unregister);
 
-void blk_integrity_revalidate(struct gendisk *disk)
-{
-	struct blk_integrity *bi = &disk->queue->integrity;
-
-	if (!(disk->flags & GENHD_FL_UP))
-		return;
-
-	if (bi->profile)
-		disk->queue->backing_dev_info.capabilities |=
-			BDI_CAP_STABLE_WRITES;
-	else
-		disk->queue->backing_dev_info.capabilities &=
-			~BDI_CAP_STABLE_WRITES;
-}
-
 void blk_integrity_add(struct gendisk *disk)
 {
 	if (kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype,
diff -druNp --no-dereference linux-libre-4.9-gnu/block/blk-mq.c linux-libre-4.9.52-gnu/block/blk-mq.c
--- linux-libre-4.9-gnu/block/blk-mq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/blk-mq.c	2017-09-27 08:40:05.000000000 -0400
@@ -629,17 +629,8 @@ static void blk_mq_check_expired(struct
 {
 	struct blk_mq_timeout_data *data = priv;
 
-	if (!test_bit(REQ_ATOM_STARTED, &rq->atomic_flags)) {
-		/*
-		 * If a request wasn't started before the queue was
-		 * marked dying, kill it here or it'll go unnoticed.
-		 */
-		if (unlikely(blk_queue_dying(rq->q))) {
-			rq->errors = -EIO;
-			blk_mq_end_request(rq, rq->errors);
-		}
+	if (!test_bit(REQ_ATOM_STARTED, &rq->atomic_flags))
 		return;
-	}
 
 	if (time_after_eq(jiffies, rq->deadline)) {
 		if (!blk_mark_rq_complete(rq))
@@ -895,7 +886,7 @@ static int blk_mq_hctx_next_cpu(struct b
 		return WORK_CPU_UNBOUND;
 
 	if (--hctx->next_cpu_batch <= 0) {
-		int cpu = hctx->next_cpu, next_cpu;
+		int next_cpu;
 
 		next_cpu = cpumask_next(hctx->next_cpu, hctx->cpumask);
 		if (next_cpu >= nr_cpu_ids)
@@ -903,8 +894,6 @@ static int blk_mq_hctx_next_cpu(struct b
 
 		hctx->next_cpu = next_cpu;
 		hctx->next_cpu_batch = BLK_MQ_CPU_WORK_BATCH;
-
-		return cpu;
 	}
 
 	return hctx->next_cpu;
@@ -1332,9 +1321,9 @@ static blk_qc_t blk_mq_make_request(stru
 		blk_mq_put_ctx(data.ctx);
 		if (!old_rq)
 			goto done;
-		if (!blk_mq_direct_issue_request(old_rq, &cookie))
-			goto done;
-		blk_mq_insert_request(old_rq, false, true, true);
+		if (test_bit(BLK_MQ_S_STOPPED, &data.hctx->state) ||
+		    blk_mq_direct_issue_request(old_rq, &cookie) != 0)
+			blk_mq_insert_request(old_rq, false, true, true);
 		goto done;
 	}
 
@@ -1485,7 +1474,7 @@ static struct blk_mq_tags *blk_mq_init_r
 	INIT_LIST_HEAD(&tags->page_list);
 
 	tags->rqs = kzalloc_node(set->queue_depth * sizeof(struct request *),
-				 GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
+				 GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY,
 				 set->numa_node);
 	if (!tags->rqs) {
 		blk_mq_free_tags(tags);
@@ -1511,7 +1500,7 @@ static struct blk_mq_tags *blk_mq_init_r
 
 		do {
 			page = alloc_pages_node(set->numa_node,
-				GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY | __GFP_ZERO,
+				GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY | __GFP_ZERO,
 				this_order);
 			if (page)
 				break;
@@ -1532,7 +1521,7 @@ static struct blk_mq_tags *blk_mq_init_r
 		 * Allow kmemleak to scan these pages as they contain pointers
 		 * to additional allocations like via ops->init_request().
 		 */
-		kmemleak_alloc(p, order_to_size(this_order), 1, GFP_KERNEL);
+		kmemleak_alloc(p, order_to_size(this_order), 1, GFP_NOIO);
 		entries_per_page = order_to_size(this_order) / rq_size;
 		to_do = min(entries_per_page, set->queue_depth - i);
 		left -= to_do * rq_size;
diff -druNp --no-dereference linux-libre-4.9-gnu/block/blk-mq-pci.c linux-libre-4.9.52-gnu/block/blk-mq-pci.c
--- linux-libre-4.9-gnu/block/blk-mq-pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/blk-mq-pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,12 +36,18 @@ int blk_mq_pci_map_queues(struct blk_mq_
 	for (queue = 0; queue < set->nr_hw_queues; queue++) {
 		mask = pci_irq_get_affinity(pdev, queue);
 		if (!mask)
-			return -EINVAL;
+			goto fallback;
 
 		for_each_cpu(cpu, mask)
 			set->mq_map[cpu] = queue;
 	}
 
 	return 0;
+
+fallback:
+	WARN_ON_ONCE(set->nr_hw_queues > 1);
+	for_each_possible_cpu(cpu)
+		set->mq_map[cpu] = 0;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues);
diff -druNp --no-dereference linux-libre-4.9-gnu/block/bsg.c linux-libre-4.9.52-gnu/block/bsg.c
--- linux-libre-4.9-gnu/block/bsg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/bsg.c	2017-09-27 08:40:05.000000000 -0400
@@ -655,6 +655,9 @@ bsg_write(struct file *file, const char
 
 	dprintk("%s: write %Zd bytes\n", bd->name, count);
 
+	if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
+		return -EINVAL;
+
 	bsg_set_block(bd, file);
 
 	bytes_written = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/block/cfq-iosched.c linux-libre-4.9.52-gnu/block/cfq-iosched.c
--- linux-libre-4.9-gnu/block/cfq-iosched.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/cfq-iosched.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,9 +36,13 @@ static const u64 cfq_target_latency = (u
 static const int cfq_hist_divisor = 4;
 
 /*
- * offset from end of service tree
+ * offset from end of queue service tree for idle class
  */
 #define CFQ_IDLE_DELAY		(NSEC_PER_SEC / 5)
+/* offset from end of group service tree under time slice mode */
+#define CFQ_SLICE_MODE_GROUP_DELAY (NSEC_PER_SEC / 5)
+/* offset from end of group service under IOPS mode */
+#define CFQ_IOPS_MODE_GROUP_DELAY (HZ / 5)
 
 /*
  * below this threshold, we consider thinktime immediate
@@ -1370,6 +1374,14 @@ cfq_group_service_tree_add(struct cfq_rb
 	cfqg->vfraction = max_t(unsigned, vfr, 1);
 }
 
+static inline u64 cfq_get_cfqg_vdisktime_delay(struct cfq_data *cfqd)
+{
+	if (!iops_mode(cfqd))
+		return CFQ_SLICE_MODE_GROUP_DELAY;
+	else
+		return CFQ_IOPS_MODE_GROUP_DELAY;
+}
+
 static void
 cfq_group_notify_queue_add(struct cfq_data *cfqd, struct cfq_group *cfqg)
 {
@@ -1389,7 +1401,8 @@ cfq_group_notify_queue_add(struct cfq_da
 	n = rb_last(&st->rb);
 	if (n) {
 		__cfqg = rb_entry_cfqg(n);
-		cfqg->vdisktime = __cfqg->vdisktime + CFQ_IDLE_DELAY;
+		cfqg->vdisktime = __cfqg->vdisktime +
+			cfq_get_cfqg_vdisktime_delay(cfqd);
 	} else
 		cfqg->vdisktime = st->min_vdisktime;
 	cfq_group_service_tree_add(st, cfqg);
@@ -1596,7 +1609,7 @@ static struct blkcg_policy_data *cfq_cpd
 {
 	struct cfq_group_data *cgd;
 
-	cgd = kzalloc(sizeof(*cgd), GFP_KERNEL);
+	cgd = kzalloc(sizeof(*cgd), gfp);
 	if (!cgd)
 		return NULL;
 	return &cgd->cpd;
diff -druNp --no-dereference linux-libre-4.9-gnu/block/partition-generic.c linux-libre-4.9.52-gnu/block/partition-generic.c
--- linux-libre-4.9-gnu/block/partition-generic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/partition-generic.c	2017-09-27 08:40:05.000000000 -0400
@@ -447,7 +447,6 @@ rescan:
 
 	if (disk->fops->revalidate_disk)
 		disk->fops->revalidate_disk(disk);
-	blk_integrity_revalidate(disk);
 	check_disk_size_change(disk, bdev);
 	bdev->bd_invalidated = 0;
 	if (!get_capacity(disk) || !(state = check_partition(disk, bdev)))
diff -druNp --no-dereference linux-libre-4.9-gnu/block/partitions/msdos.c linux-libre-4.9.52-gnu/block/partitions/msdos.c
--- linux-libre-4.9-gnu/block/partitions/msdos.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/partitions/msdos.c	2017-09-27 08:40:05.000000000 -0400
@@ -300,6 +300,8 @@ static void parse_bsd(struct parsed_part
 			continue;
 		bsd_start = le32_to_cpu(p->p_offset);
 		bsd_size = le32_to_cpu(p->p_size);
+		if (memcmp(flavour, "bsd\0", 4) == 0)
+			bsd_start += offset;
 		if (offset == bsd_start && size == bsd_size)
 			/* full parent partition, we have it already */
 			continue;
diff -druNp --no-dereference linux-libre-4.9-gnu/block/scsi_ioctl.c linux-libre-4.9.52-gnu/block/scsi_ioctl.c
--- linux-libre-4.9-gnu/block/scsi_ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/block/scsi_ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -182,6 +182,9 @@ static void blk_set_cmd_filter_defaults(
 	__set_bit(WRITE_16, filter->write_ok);
 	__set_bit(WRITE_LONG, filter->write_ok);
 	__set_bit(WRITE_LONG_2, filter->write_ok);
+	__set_bit(WRITE_SAME, filter->write_ok);
+	__set_bit(WRITE_SAME_16, filter->write_ok);
+	__set_bit(WRITE_SAME_32, filter->write_ok);
 	__set_bit(ERASE, filter->write_ok);
 	__set_bit(GPCMD_MODE_SELECT_10, filter->write_ok);
 	__set_bit(MODE_SELECT, filter->write_ok);
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/ahash.c linux-libre-4.9.52-gnu/crypto/ahash.c
--- linux-libre-4.9-gnu/crypto/ahash.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/ahash.c	2017-09-27 08:40:05.000000000 -0400
@@ -31,6 +31,7 @@ struct ahash_request_priv {
 	crypto_completion_t complete;
 	void *data;
 	u8 *result;
+	u32 flags;
 	void *ubuf[] CRYPTO_MINALIGN_ATTR;
 };
 
@@ -252,6 +253,8 @@ static int ahash_save_req(struct ahash_r
 	priv->result = req->result;
 	priv->complete = req->base.complete;
 	priv->data = req->base.data;
+	priv->flags = req->base.flags;
+
 	/*
 	 * WARNING: We do not backup req->priv here! The req->priv
 	 *          is for internal use of the Crypto API and the
@@ -266,38 +269,44 @@ static int ahash_save_req(struct ahash_r
 	return 0;
 }
 
-static void ahash_restore_req(struct ahash_request *req)
+static void ahash_restore_req(struct ahash_request *req, int err)
 {
 	struct ahash_request_priv *priv = req->priv;
 
+	if (!err)
+		memcpy(priv->result, req->result,
+		       crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+
 	/* Restore the original crypto request. */
 	req->result = priv->result;
-	req->base.complete = priv->complete;
-	req->base.data = priv->data;
+
+	ahash_request_set_callback(req, priv->flags,
+				   priv->complete, priv->data);
 	req->priv = NULL;
 
 	/* Free the req->priv.priv from the ADJUSTED request. */
 	kzfree(priv);
 }
 
-static void ahash_op_unaligned_finish(struct ahash_request *req, int err)
+static void ahash_notify_einprogress(struct ahash_request *req)
 {
 	struct ahash_request_priv *priv = req->priv;
+	struct crypto_async_request oreq;
 
-	if (err == -EINPROGRESS)
-		return;
-
-	if (!err)
-		memcpy(priv->result, req->result,
-		       crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
+	oreq.data = priv->data;
 
-	ahash_restore_req(req);
+	priv->complete(&oreq, -EINPROGRESS);
 }
 
 static void ahash_op_unaligned_done(struct crypto_async_request *req, int err)
 {
 	struct ahash_request *areq = req->data;
 
+	if (err == -EINPROGRESS) {
+		ahash_notify_einprogress(areq);
+		return;
+	}
+
 	/*
 	 * Restore the original request, see ahash_op_unaligned() for what
 	 * goes where.
@@ -308,7 +317,7 @@ static void ahash_op_unaligned_done(stru
 	 */
 
 	/* First copy req->result into req->priv.result */
-	ahash_op_unaligned_finish(areq, err);
+	ahash_restore_req(areq, err);
 
 	/* Complete the ORIGINAL request. */
 	areq->base.complete(&areq->base, err);
@@ -324,7 +333,12 @@ static int ahash_op_unaligned(struct aha
 		return err;
 
 	err = op(req);
-	ahash_op_unaligned_finish(req, err);
+	if (err == -EINPROGRESS ||
+	    (err == -EBUSY && (ahash_request_flags(req) &
+			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+		return err;
+
+	ahash_restore_req(req, err);
 
 	return err;
 }
@@ -359,25 +373,14 @@ int crypto_ahash_digest(struct ahash_req
 }
 EXPORT_SYMBOL_GPL(crypto_ahash_digest);
 
-static void ahash_def_finup_finish2(struct ahash_request *req, int err)
+static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
 {
-	struct ahash_request_priv *priv = req->priv;
+	struct ahash_request *areq = req->data;
 
 	if (err == -EINPROGRESS)
 		return;
 
-	if (!err)
-		memcpy(priv->result, req->result,
-		       crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
-
-	ahash_restore_req(req);
-}
-
-static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
-{
-	struct ahash_request *areq = req->data;
-
-	ahash_def_finup_finish2(areq, err);
+	ahash_restore_req(areq, err);
 
 	areq->base.complete(&areq->base, err);
 }
@@ -388,11 +391,15 @@ static int ahash_def_finup_finish1(struc
 		goto out;
 
 	req->base.complete = ahash_def_finup_done2;
-	req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
 	err = crypto_ahash_reqtfm(req)->final(req);
+	if (err == -EINPROGRESS ||
+	    (err == -EBUSY && (ahash_request_flags(req) &
+			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+		return err;
 
 out:
-	ahash_def_finup_finish2(req, err);
+	ahash_restore_req(req, err);
 	return err;
 }
 
@@ -400,7 +407,16 @@ static void ahash_def_finup_done1(struct
 {
 	struct ahash_request *areq = req->data;
 
+	if (err == -EINPROGRESS) {
+		ahash_notify_einprogress(areq);
+		return;
+	}
+
+	areq->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
 	err = ahash_def_finup_finish1(areq, err);
+	if (areq->priv)
+		return;
 
 	areq->base.complete(&areq->base, err);
 }
@@ -415,6 +431,11 @@ static int ahash_def_finup(struct ahash_
 		return err;
 
 	err = tfm->update(req);
+	if (err == -EINPROGRESS ||
+	    (err == -EBUSY && (ahash_request_flags(req) &
+			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+		return err;
+
 	return ahash_def_finup_finish1(req, err);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/algapi.c linux-libre-4.9.52-gnu/crypto/algapi.c
--- linux-libre-4.9-gnu/crypto/algapi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/algapi.c	2017-09-27 08:40:05.000000000 -0400
@@ -356,6 +356,7 @@ int crypto_register_alg(struct crypto_al
 	struct crypto_larval *larval;
 	int err;
 
+	alg->cra_flags &= ~CRYPTO_ALG_DEAD;
 	err = crypto_check_alg(alg);
 	if (err)
 		return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/algif_aead.c linux-libre-4.9.52-gnu/crypto/algif_aead.c
--- linux-libre-4.9-gnu/crypto/algif_aead.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/algif_aead.c	2017-09-27 08:40:05.000000000 -0400
@@ -39,10 +39,16 @@ struct aead_async_req {
 	struct aead_async_rsgl first_rsgl;
 	struct list_head list;
 	struct kiocb *iocb;
+	struct sock *sk;
 	unsigned int tsgls;
 	char iv[];
 };
 
+struct aead_tfm {
+	struct crypto_aead *aead;
+	bool has_key;
+};
+
 struct aead_ctx {
 	struct aead_sg_list tsgl;
 	struct aead_async_rsgl first_rsgl;
@@ -379,12 +385,10 @@ unlock:
 
 static void aead_async_cb(struct crypto_async_request *_req, int err)
 {
-	struct sock *sk = _req->data;
-	struct alg_sock *ask = alg_sk(sk);
-	struct aead_ctx *ctx = ask->private;
-	struct crypto_aead *tfm = crypto_aead_reqtfm(&ctx->aead_req);
-	struct aead_request *req = aead_request_cast(_req);
+	struct aead_request *req = _req->data;
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct aead_async_req *areq = GET_ASYM_REQ(req, tfm);
+	struct sock *sk = areq->sk;
 	struct scatterlist *sg = areq->tsgl;
 	struct aead_async_rsgl *rsgl;
 	struct kiocb *iocb = areq->iocb;
@@ -447,11 +451,12 @@ static int aead_recvmsg_async(struct soc
 	memset(&areq->first_rsgl, '\0', sizeof(areq->first_rsgl));
 	INIT_LIST_HEAD(&areq->list);
 	areq->iocb = msg->msg_iocb;
+	areq->sk = sk;
 	memcpy(areq->iv, ctx->iv, crypto_aead_ivsize(tfm));
 	aead_request_set_tfm(req, tfm);
 	aead_request_set_ad(req, ctx->aead_assoclen);
 	aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				  aead_async_cb, sk);
+				  aead_async_cb, req);
 	used -= ctx->aead_assoclen;
 
 	/* take over all tx sgls from ctx */
@@ -671,9 +676,9 @@ static int aead_recvmsg_sync(struct sock
 unlock:
 	list_for_each_entry_safe(rsgl, tmp, &ctx->list, list) {
 		af_alg_free_sg(&rsgl->sgl);
+		list_del(&rsgl->list);
 		if (rsgl != &ctx->first_rsgl)
 			sock_kfree_s(sk, rsgl, sizeof(*rsgl));
-		list_del(&rsgl->list);
 	}
 	INIT_LIST_HEAD(&ctx->list);
 	aead_wmem_wakeup(sk);
@@ -732,24 +737,146 @@ static struct proto_ops algif_aead_ops =
 	.poll		=	aead_poll,
 };
 
+static int aead_check_key(struct socket *sock)
+{
+	int err = 0;
+	struct sock *psk;
+	struct alg_sock *pask;
+	struct aead_tfm *tfm;
+	struct sock *sk = sock->sk;
+	struct alg_sock *ask = alg_sk(sk);
+
+	lock_sock(sk);
+	if (ask->refcnt)
+		goto unlock_child;
+
+	psk = ask->parent;
+	pask = alg_sk(ask->parent);
+	tfm = pask->private;
+
+	err = -ENOKEY;
+	lock_sock_nested(psk, SINGLE_DEPTH_NESTING);
+	if (!tfm->has_key)
+		goto unlock;
+
+	if (!pask->refcnt++)
+		sock_hold(psk);
+
+	ask->refcnt = 1;
+	sock_put(psk);
+
+	err = 0;
+
+unlock:
+	release_sock(psk);
+unlock_child:
+	release_sock(sk);
+
+	return err;
+}
+
+static int aead_sendmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t size)
+{
+	int err;
+
+	err = aead_check_key(sock);
+	if (err)
+		return err;
+
+	return aead_sendmsg(sock, msg, size);
+}
+
+static ssize_t aead_sendpage_nokey(struct socket *sock, struct page *page,
+				       int offset, size_t size, int flags)
+{
+	int err;
+
+	err = aead_check_key(sock);
+	if (err)
+		return err;
+
+	return aead_sendpage(sock, page, offset, size, flags);
+}
+
+static int aead_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
+				  size_t ignored, int flags)
+{
+	int err;
+
+	err = aead_check_key(sock);
+	if (err)
+		return err;
+
+	return aead_recvmsg(sock, msg, ignored, flags);
+}
+
+static struct proto_ops algif_aead_ops_nokey = {
+	.family		=	PF_ALG,
+
+	.connect	=	sock_no_connect,
+	.socketpair	=	sock_no_socketpair,
+	.getname	=	sock_no_getname,
+	.ioctl		=	sock_no_ioctl,
+	.listen		=	sock_no_listen,
+	.shutdown	=	sock_no_shutdown,
+	.getsockopt	=	sock_no_getsockopt,
+	.mmap		=	sock_no_mmap,
+	.bind		=	sock_no_bind,
+	.accept		=	sock_no_accept,
+	.setsockopt	=	sock_no_setsockopt,
+
+	.release	=	af_alg_release,
+	.sendmsg	=	aead_sendmsg_nokey,
+	.sendpage	=	aead_sendpage_nokey,
+	.recvmsg	=	aead_recvmsg_nokey,
+	.poll		=	aead_poll,
+};
+
 static void *aead_bind(const char *name, u32 type, u32 mask)
 {
-	return crypto_alloc_aead(name, type, mask);
+	struct aead_tfm *tfm;
+	struct crypto_aead *aead;
+
+	tfm = kzalloc(sizeof(*tfm), GFP_KERNEL);
+	if (!tfm)
+		return ERR_PTR(-ENOMEM);
+
+	aead = crypto_alloc_aead(name, type, mask);
+	if (IS_ERR(aead)) {
+		kfree(tfm);
+		return ERR_CAST(aead);
+	}
+
+	tfm->aead = aead;
+
+	return tfm;
 }
 
 static void aead_release(void *private)
 {
-	crypto_free_aead(private);
+	struct aead_tfm *tfm = private;
+
+	crypto_free_aead(tfm->aead);
+	kfree(tfm);
 }
 
 static int aead_setauthsize(void *private, unsigned int authsize)
 {
-	return crypto_aead_setauthsize(private, authsize);
+	struct aead_tfm *tfm = private;
+
+	return crypto_aead_setauthsize(tfm->aead, authsize);
 }
 
 static int aead_setkey(void *private, const u8 *key, unsigned int keylen)
 {
-	return crypto_aead_setkey(private, key, keylen);
+	struct aead_tfm *tfm = private;
+	int err;
+
+	err = crypto_aead_setkey(tfm->aead, key, keylen);
+	tfm->has_key = !err;
+
+	return err;
 }
 
 static void aead_sock_destruct(struct sock *sk)
@@ -766,12 +893,14 @@ static void aead_sock_destruct(struct so
 	af_alg_release_parent(sk);
 }
 
-static int aead_accept_parent(void *private, struct sock *sk)
+static int aead_accept_parent_nokey(void *private, struct sock *sk)
 {
 	struct aead_ctx *ctx;
 	struct alg_sock *ask = alg_sk(sk);
-	unsigned int len = sizeof(*ctx) + crypto_aead_reqsize(private);
-	unsigned int ivlen = crypto_aead_ivsize(private);
+	struct aead_tfm *tfm = private;
+	struct crypto_aead *aead = tfm->aead;
+	unsigned int len = sizeof(*ctx) + crypto_aead_reqsize(aead);
+	unsigned int ivlen = crypto_aead_ivsize(aead);
 
 	ctx = sock_kmalloc(sk, len, GFP_KERNEL);
 	if (!ctx)
@@ -798,7 +927,7 @@ static int aead_accept_parent(void *priv
 
 	ask->private = ctx;
 
-	aead_request_set_tfm(&ctx->aead_req, private);
+	aead_request_set_tfm(&ctx->aead_req, aead);
 	aead_request_set_callback(&ctx->aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG,
 				  af_alg_complete, &ctx->completion);
 
@@ -807,13 +936,25 @@ static int aead_accept_parent(void *priv
 	return 0;
 }
 
+static int aead_accept_parent(void *private, struct sock *sk)
+{
+	struct aead_tfm *tfm = private;
+
+	if (!tfm->has_key)
+		return -ENOKEY;
+
+	return aead_accept_parent_nokey(private, sk);
+}
+
 static const struct af_alg_type algif_type_aead = {
 	.bind		=	aead_bind,
 	.release	=	aead_release,
 	.setkey		=	aead_setkey,
 	.setauthsize	=	aead_setauthsize,
 	.accept		=	aead_accept_parent,
+	.accept_nokey	=	aead_accept_parent_nokey,
 	.ops		=	&algif_aead_ops,
+	.ops_nokey	=	&algif_aead_ops_nokey,
 	.name		=	"aead",
 	.owner		=	THIS_MODULE
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/algif_hash.c linux-libre-4.9.52-gnu/crypto/algif_hash.c
--- linux-libre-4.9-gnu/crypto/algif_hash.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/algif_hash.c	2017-09-27 08:40:05.000000000 -0400
@@ -245,7 +245,7 @@ static int hash_accept(struct socket *so
 	struct alg_sock *ask = alg_sk(sk);
 	struct hash_ctx *ctx = ask->private;
 	struct ahash_request *req = &ctx->req;
-	char state[crypto_ahash_statesize(crypto_ahash_reqtfm(req))];
+	char state[crypto_ahash_statesize(crypto_ahash_reqtfm(req)) ? : 1];
 	struct sock *sk2;
 	struct alg_sock *ask2;
 	struct hash_ctx *ctx2;
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/algif_skcipher.c linux-libre-4.9.52-gnu/crypto/algif_skcipher.c
--- linux-libre-4.9-gnu/crypto/algif_skcipher.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/algif_skcipher.c	2017-09-27 08:40:05.000000000 -0400
@@ -86,8 +86,13 @@ static void skcipher_free_async_sgls(str
 	}
 	sgl = sreq->tsg;
 	n = sg_nents(sgl);
-	for_each_sg(sgl, sg, n, i)
-		put_page(sg_page(sg));
+	for_each_sg(sgl, sg, n, i) {
+		struct page *page = sg_page(sg);
+
+		/* some SGs may not have a page mapped */
+		if (page && page_ref_count(page))
+			put_page(page);
+	}
 
 	kfree(sreq->tsg);
 }
@@ -138,8 +143,10 @@ static int skcipher_alloc_sgl(struct soc
 		sg_init_table(sgl->sg, MAX_SGL_ENTS + 1);
 		sgl->cur = 0;
 
-		if (sg)
+		if (sg) {
 			sg_chain(sg, MAX_SGL_ENTS + 1, sgl->sg);
+			sg_unmark_end(sg + (MAX_SGL_ENTS - 1));
+		}
 
 		list_add_tail(&sgl->list, &ctx->tsgl);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/asymmetric_keys/public_key.c linux-libre-4.9.52-gnu/crypto/asymmetric_keys/public_key.c
--- linux-libre-4.9-gnu/crypto/asymmetric_keys/public_key.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/asymmetric_keys/public_key.c	2017-09-27 08:40:05.000000000 -0400
@@ -140,7 +140,7 @@ int public_key_verify_signature(const st
 	 * signature and returns that to us.
 	 */
 	ret = crypto_akcipher_verify(req);
-	if (ret == -EINPROGRESS) {
+	if ((ret == -EINPROGRESS) || (ret == -EBUSY)) {
 		wait_for_completion(&compl.completion);
 		ret = compl.err;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/authencesn.c linux-libre-4.9.52-gnu/crypto/authencesn.c
--- linux-libre-4.9-gnu/crypto/authencesn.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/authencesn.c	2017-09-27 08:40:05.000000000 -0400
@@ -248,6 +248,9 @@ static int crypto_authenc_esn_decrypt_ta
 	u8 *ihash = ohash + crypto_ahash_digestsize(auth);
 	u32 tmp[2];
 
+	if (!authsize)
+		goto decrypt;
+
 	/* Move high-order bits of sequence number back. */
 	scatterwalk_map_and_copy(tmp, dst, 4, 4, 0);
 	scatterwalk_map_and_copy(tmp + 1, dst, assoclen + cryptlen, 4, 0);
@@ -256,6 +259,8 @@ static int crypto_authenc_esn_decrypt_ta
 	if (crypto_memneq(ihash, ohash, authsize))
 		return -EBADMSG;
 
+decrypt:
+
 	sg_init_table(areq_ctx->dst, 2);
 	dst = scatterwalk_ffwd(areq_ctx->dst, dst, assoclen);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/drbg.c linux-libre-4.9.52-gnu/crypto/drbg.c
--- linux-libre-4.9-gnu/crypto/drbg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/drbg.c	2017-09-27 08:40:05.000000000 -0400
@@ -1691,6 +1691,7 @@ static int drbg_init_sym_kernel(struct d
 		return PTR_ERR(sk_tfm);
 	}
 	drbg->ctr_handle = sk_tfm;
+	init_completion(&drbg->ctr_completion);
 
 	req = skcipher_request_alloc(sk_tfm, GFP_KERNEL);
 	if (!req) {
@@ -1768,9 +1769,8 @@ static int drbg_kcapi_sym_ctr(struct drb
 			break;
 		case -EINPROGRESS:
 		case -EBUSY:
-			ret = wait_for_completion_interruptible(
-				&drbg->ctr_completion);
-			if (!ret && !drbg->ctr_async_err) {
+			wait_for_completion(&drbg->ctr_completion);
+			if (!drbg->ctr_async_err) {
 				reinit_completion(&drbg->ctr_completion);
 				break;
 			}
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/gcm.c linux-libre-4.9.52-gnu/crypto/gcm.c
--- linux-libre-4.9-gnu/crypto/gcm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/gcm.c	2017-09-27 08:40:05.000000000 -0400
@@ -152,10 +152,8 @@ static int crypto_gcm_setkey(struct cryp
 
 	err = crypto_skcipher_encrypt(&data->req);
 	if (err == -EINPROGRESS || err == -EBUSY) {
-		err = wait_for_completion_interruptible(
-			&data->result.completion);
-		if (!err)
-			err = data->result.err;
+		wait_for_completion(&data->result.completion);
+		err = data->result.err;
 	}
 
 	if (err)
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/Makefile linux-libre-4.9.52-gnu/crypto/Makefile
--- linux-libre-4.9-gnu/crypto/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -71,6 +71,7 @@ obj-$(CONFIG_CRYPTO_SHA256) += sha256_ge
 obj-$(CONFIG_CRYPTO_SHA512) += sha512_generic.o
 obj-$(CONFIG_CRYPTO_SHA3) += sha3_generic.o
 obj-$(CONFIG_CRYPTO_WP512) += wp512.o
+CFLAGS_wp512.o := $(call cc-option,-fno-schedule-insns)  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79149
 obj-$(CONFIG_CRYPTO_TGR192) += tgr192.o
 obj-$(CONFIG_CRYPTO_GF128MUL) += gf128mul.o
 obj-$(CONFIG_CRYPTO_ECB) += ecb.o
@@ -94,6 +95,7 @@ obj-$(CONFIG_CRYPTO_BLOWFISH_COMMON) +=
 obj-$(CONFIG_CRYPTO_TWOFISH) += twofish_generic.o
 obj-$(CONFIG_CRYPTO_TWOFISH_COMMON) += twofish_common.o
 obj-$(CONFIG_CRYPTO_SERPENT) += serpent_generic.o
+CFLAGS_serpent_generic.o := $(call cc-option,-fsched-pressure)  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79149
 obj-$(CONFIG_CRYPTO_AES) += aes_generic.o
 obj-$(CONFIG_CRYPTO_CAMELLIA) += camellia_generic.o
 obj-$(CONFIG_CRYPTO_CAST_COMMON) += cast_common.o
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/rsa-pkcs1pad.c linux-libre-4.9.52-gnu/crypto/rsa-pkcs1pad.c
--- linux-libre-4.9-gnu/crypto/rsa-pkcs1pad.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/rsa-pkcs1pad.c	2017-09-27 08:40:05.000000000 -0400
@@ -496,7 +496,7 @@ static int pkcs1pad_verify_complete(stru
 		goto done;
 	pos++;
 
-	if (memcmp(out_buf + pos, digest_info->data, digest_info->size))
+	if (crypto_memneq(out_buf + pos, digest_info->data, digest_info->size))
 		goto done;
 
 	pos += digest_info->size;
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/skcipher.c linux-libre-4.9.52-gnu/crypto/skcipher.c
--- linux-libre-4.9-gnu/crypto/skcipher.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/skcipher.c	2017-09-27 08:40:05.000000000 -0400
@@ -221,6 +221,44 @@ static int crypto_init_skcipher_ops_ablk
 	return 0;
 }
 
+static int skcipher_setkey_unaligned(struct crypto_skcipher *tfm,
+				     const u8 *key, unsigned int keylen)
+{
+	unsigned long alignmask = crypto_skcipher_alignmask(tfm);
+	struct skcipher_alg *cipher = crypto_skcipher_alg(tfm);
+	u8 *buffer, *alignbuffer;
+	unsigned long absize;
+	int ret;
+
+	absize = keylen + alignmask;
+	buffer = kmalloc(absize, GFP_ATOMIC);
+	if (!buffer)
+		return -ENOMEM;
+
+	alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
+	memcpy(alignbuffer, key, keylen);
+	ret = cipher->setkey(tfm, alignbuffer, keylen);
+	kzfree(buffer);
+	return ret;
+}
+
+static int skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
+			   unsigned int keylen)
+{
+	struct skcipher_alg *cipher = crypto_skcipher_alg(tfm);
+	unsigned long alignmask = crypto_skcipher_alignmask(tfm);
+
+	if (keylen < cipher->min_keysize || keylen > cipher->max_keysize) {
+		crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		return -EINVAL;
+	}
+
+	if ((unsigned long)key & alignmask)
+		return skcipher_setkey_unaligned(tfm, key, keylen);
+
+	return cipher->setkey(tfm, key, keylen);
+}
+
 static void crypto_skcipher_exit_tfm(struct crypto_tfm *tfm)
 {
 	struct crypto_skcipher *skcipher = __crypto_skcipher_cast(tfm);
@@ -241,7 +279,7 @@ static int crypto_skcipher_init_tfm(stru
 	    tfm->__crt_alg->cra_type == &crypto_givcipher_type)
 		return crypto_init_skcipher_ops_ablkcipher(tfm);
 
-	skcipher->setkey = alg->setkey;
+	skcipher->setkey = skcipher_setkey;
 	skcipher->encrypt = alg->encrypt;
 	skcipher->decrypt = alg->decrypt;
 	skcipher->ivsize = alg->ivsize;
diff -druNp --no-dereference linux-libre-4.9-gnu/crypto/testmgr.h linux-libre-4.9.52-gnu/crypto/testmgr.h
--- linux-libre-4.9-gnu/crypto/testmgr.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/crypto/testmgr.h	2017-09-27 08:40:05.000000000 -0400
@@ -22813,7 +22813,7 @@ static struct aead_testvec aes_ccm_enc_t
 			  "\x09\x75\x9a\x9b\x3c\x9b\x27\x39",
 		.klen	= 32,
 		.iv	= "\x03\xf9\xd9\x4e\x63\xb5\x3d\x9d"
-			  "\x43\xf6\x1e\x50",
+			  "\x43\xf6\x1e\x50\0\0\0\0",
 		.assoc	= "\x57\xf5\x6b\x8b\x57\x5c\x3d\x3b"
 			  "\x13\x02\x01\x0c\x83\x4c\x96\x35"
 			  "\x8e\xd6\x39\xcf\x7d\x14\x9b\x94"
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/arm64/silicon-errata.txt linux-libre-4.9.52-gnu/Documentation/arm64/silicon-errata.txt
--- linux-libre-4.9-gnu/Documentation/arm64/silicon-errata.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/arm64/silicon-errata.txt	2017-09-27 08:40:05.000000000 -0400
@@ -42,24 +42,26 @@ file acts as a registry of software work
 will be updated when new workarounds are committed and backported to
 stable kernels.
 
-| Implementor    | Component       | Erratum ID      | Kconfig                 |
-+----------------+-----------------+-----------------+-------------------------+
-| ARM            | Cortex-A53      | #826319         | ARM64_ERRATUM_826319    |
-| ARM            | Cortex-A53      | #827319         | ARM64_ERRATUM_827319    |
-| ARM            | Cortex-A53      | #824069         | ARM64_ERRATUM_824069    |
-| ARM            | Cortex-A53      | #819472         | ARM64_ERRATUM_819472    |
-| ARM            | Cortex-A53      | #845719         | ARM64_ERRATUM_845719    |
-| ARM            | Cortex-A53      | #843419         | ARM64_ERRATUM_843419    |
-| ARM            | Cortex-A57      | #832075         | ARM64_ERRATUM_832075    |
-| ARM            | Cortex-A57      | #852523         | N/A                     |
-| ARM            | Cortex-A57      | #834220         | ARM64_ERRATUM_834220    |
-| ARM            | Cortex-A72      | #853709         | N/A                     |
-| ARM            | MMU-500         | #841119,#826419 | N/A                     |
-|                |                 |                 |                         |
-| Cavium         | ThunderX ITS    | #22375, #24313  | CAVIUM_ERRATUM_22375    |
-| Cavium         | ThunderX ITS    | #23144          | CAVIUM_ERRATUM_23144    |
-| Cavium         | ThunderX GICv3  | #23154          | CAVIUM_ERRATUM_23154    |
-| Cavium         | ThunderX Core   | #27456          | CAVIUM_ERRATUM_27456    |
-| Cavium         | ThunderX SMMUv2 | #27704          | N/A		       |
-|                |                 |                 |                         |
-| Freescale/NXP  | LS2080A/LS1043A | A-008585        | FSL_ERRATUM_A008585     |
+| Implementor    | Component       | Erratum ID      | Kconfig                     |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM            | Cortex-A53      | #826319         | ARM64_ERRATUM_826319        |
+| ARM            | Cortex-A53      | #827319         | ARM64_ERRATUM_827319        |
+| ARM            | Cortex-A53      | #824069         | ARM64_ERRATUM_824069        |
+| ARM            | Cortex-A53      | #819472         | ARM64_ERRATUM_819472        |
+| ARM            | Cortex-A53      | #845719         | ARM64_ERRATUM_845719        |
+| ARM            | Cortex-A53      | #843419         | ARM64_ERRATUM_843419        |
+| ARM            | Cortex-A57      | #832075         | ARM64_ERRATUM_832075        |
+| ARM            | Cortex-A57      | #852523         | N/A                         |
+| ARM            | Cortex-A57      | #834220         | ARM64_ERRATUM_834220        |
+| ARM            | Cortex-A72      | #853709         | N/A                         |
+| ARM            | MMU-500         | #841119,#826419 | N/A                         |
+|                |                 |                 |                             |
+| Cavium         | ThunderX ITS    | #22375, #24313  | CAVIUM_ERRATUM_22375        |
+| Cavium         | ThunderX ITS    | #23144          | CAVIUM_ERRATUM_23144        |
+| Cavium         | ThunderX GICv3  | #23154          | CAVIUM_ERRATUM_23154        |
+| Cavium         | ThunderX Core   | #27456          | CAVIUM_ERRATUM_27456        |
+| Cavium         | ThunderX SMMUv2 | #27704          | N/A                         |
+|                |                 |                 |                             |
+| Freescale/NXP  | LS2080A/LS1043A | A-008585        | FSL_ERRATUM_A008585         |
+|                |                 |                 |                             |
+| Qualcomm Tech. | QDF2400 ITS     | E0065           | QCOM_QDF2400_ERRATUM_0065   |
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/arm64/tagged-pointers.txt linux-libre-4.9.52-gnu/Documentation/arm64/tagged-pointers.txt
--- linux-libre-4.9-gnu/Documentation/arm64/tagged-pointers.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/arm64/tagged-pointers.txt	2017-09-27 08:40:05.000000000 -0400
@@ -11,24 +11,56 @@ in AArch64 Linux.
 The kernel configures the translation tables so that translations made
 via TTBR0 (i.e. userspace mappings) have the top byte (bits 63:56) of
 the virtual address ignored by the translation hardware. This frees up
-this byte for application use, with the following caveats:
+this byte for application use.
 
-	(1) The kernel requires that all user addresses passed to EL1
-	    are tagged with tag 0x00. This means that any syscall
-	    parameters containing user virtual addresses *must* have
-	    their top byte cleared before trapping to the kernel.
 
-	(2) Non-zero tags are not preserved when delivering signals.
-	    This means that signal handlers in applications making use
-	    of tags cannot rely on the tag information for user virtual
-	    addresses being maintained for fields inside siginfo_t.
-	    One exception to this rule is for signals raised in response
-	    to watchpoint debug exceptions, where the tag information
-	    will be preserved.
+Passing tagged addresses to the kernel
+--------------------------------------
 
-	(3) Special care should be taken when using tagged pointers,
-	    since it is likely that C compilers will not hazard two
-	    virtual addresses differing only in the upper byte.
+All interpretation of userspace memory addresses by the kernel assumes
+an address tag of 0x00.
+
+This includes, but is not limited to, addresses found in:
+
+ - pointer arguments to system calls, including pointers in structures
+   passed to system calls,
+
+ - the stack pointer (sp), e.g. when interpreting it to deliver a
+   signal,
+
+ - the frame pointer (x29) and frame records, e.g. when interpreting
+   them to generate a backtrace or call graph.
+
+Using non-zero address tags in any of these locations may result in an
+error code being returned, a (fatal) signal being raised, or other modes
+of failure.
+
+For these reasons, passing non-zero address tags to the kernel via
+system calls is forbidden, and using a non-zero address tag for sp is
+strongly discouraged.
+
+Programs maintaining a frame pointer and frame records that use non-zero
+address tags may suffer impaired or inaccurate debug and profiling
+visibility.
+
+
+Preserving tags
+---------------
+
+Non-zero tags are not preserved when delivering signals. This means that
+signal handlers in applications making use of tags cannot rely on the
+tag information for user virtual addresses being maintained for fields
+inside siginfo_t. One exception to this rule is for signals raised in
+response to watchpoint debug exceptions, where the tag information will
+be preserved.
 
 The architecture prevents the use of a tagged PC, so the upper byte will
 be set to a sign-extension of bit 55 on exception return.
+
+
+Other considerations
+--------------------
+
+Special care should be taken when using tagged pointers, since it is
+likely that C compilers will not hazard two virtual addresses differing
+only in the upper byte.
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/conf.py linux-libre-4.9.52-gnu/Documentation/conf.py
--- linux-libre-4.9-gnu/Documentation/conf.py	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/conf.py	2017-09-27 08:40:05.000000000 -0400
@@ -37,7 +37,7 @@ from load_config import loadConfig
 extensions = ['kernel-doc', 'rstFlatTable', 'kernel_include', 'cdomain']
 
 # The name of the math extension changed on Sphinx 1.4
-if minor > 3:
+if major == 1 and minor > 3:
     extensions.append("sphinx.ext.imgmath")
 else:
     extensions.append("sphinx.ext.pngmath")
@@ -332,6 +332,10 @@ latex_elements = {
      '''
 }
 
+# Fix reference escape troubles with Sphinx 1.4.x
+if major == 1 and minor > 3:
+    latex_elements['preamble']  += '\\renewcommand*{\\DUrole}[2]{ #2 }\n'
+
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/arm/arch_timer.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/arm/arch_timer.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/arm/arch_timer.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/arm/arch_timer.txt	2017-09-27 08:40:05.000000000 -0400
@@ -38,6 +38,11 @@ to deliver its interrupts via SPIs.
   architecturally-defined reset values. Only supported for 32-bit
   systems which follow the ARMv7 architected reset values.
 
+- arm,no-tick-in-suspend : The main counter does not tick when the system is in
+  low-power system suspend on some SoCs. This behavior does not match the
+  Architecture Reference Manual's specification that the system counter "must
+  be implemented in an always-on power domain."
+
 
 Example:
 
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/clock/imx31-clock.txt	2017-09-27 08:40:05.000000000 -0400
@@ -77,7 +77,7 @@ Examples:
 clks: ccm@53f80000{
 	compatible = "fsl,imx31-ccm";
 	reg = <0x53f80000 0x4000>;
-	interrupts = <0 31 0x04 0 53 0x04>;
+	interrupts = <31>, <53>;
 	#clock-cells = <1>;
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt	2017-09-27 08:40:05.000000000 -0400
@@ -28,6 +28,8 @@ The TCON acts as a timing controller for
 Required properties:
  - compatible: value must be either:
    * allwinner,sun5i-a13-tcon
+   * allwinner,sun6i-a31-tcon
+   * allwinner,sun6i-a31s-tcon
    * allwinner,sun8i-a33-tcon
  - reg: base address and size of memory-mapped region
  - interrupts: interrupt associated to this IP
@@ -50,7 +52,7 @@ Required properties:
   second the block connected to the TCON channel 1 (usually the TV
   encoder)
 
-On the A13, there is one more clock required:
+On SoCs other than the A33, there is one more clock required:
    - 'tcon-ch1': The clock driving the TCON channel 1
 
 DRC
@@ -87,6 +89,7 @@ system.
 Required properties:
   - compatible: value must be one of:
     * allwinner,sun5i-a13-display-backend
+    * allwinner,sun6i-a31-display-backend
     * allwinner,sun8i-a33-display-backend
   - reg: base address and size of the memory-mapped region.
   - clocks: phandles to the clocks feeding the frontend and backend
@@ -117,6 +120,7 @@ deinterlacing and color space conversion
 Required properties:
   - compatible: value must be one of:
     * allwinner,sun5i-a13-display-frontend
+    * allwinner,sun6i-a31-display-frontend
     * allwinner,sun8i-a33-display-frontend
   - reg: base address and size of the memory-mapped region.
   - interrupts: interrupt associated to this IP
@@ -142,6 +146,8 @@ extra node.
 Required properties:
   - compatible: value must be one of:
     * allwinner,sun5i-a13-display-engine
+    * allwinner,sun6i-a31-display-engine
+    * allwinner,sun6i-a31s-display-engine
     * allwinner,sun8i-a33-display-engine
 
   - allwinner,pipelines: list of phandle to the display engine
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/input/tps65218-pwrbutton.txt	2017-09-27 08:40:05.000000000 -0400
@@ -8,8 +8,9 @@ This driver provides a simple power butt
 Required properties:
 - compatible: should be "ti,tps65217-pwrbutton" or "ti,tps65218-pwrbutton"
 
-Required properties for TPS65218:
+Required properties:
 - interrupts: should be one of the following
+   - <2>: For controllers compatible with tps65217
    - <3 IRQ_TYPE_EDGE_BOTH>: For controllers compatible with tps65218
 
 Examples:
@@ -17,6 +18,7 @@ Examples:
 &tps {
 	tps65217-pwrbutton {
 		compatible = "ti,tps65217-pwrbutton";
+		interrupts = <2>;
 	};
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/mfd/tps65086.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/mfd/tps65086.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/mfd/tps65086.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/mfd/tps65086.txt	2017-09-27 08:40:05.000000000 -0400
@@ -23,7 +23,7 @@ Required properties:
                             defined below.
 
 Optional regulator properties:
- - ti,regulator-step-size-25mv	: This is applicable for buck[1,2,6], set this
+ - ti,regulator-step-size-25mv	: This is applicable for buck[1-6], set this
 				    if the regulator is factory set with a 25mv
 				    step voltage mapping.
  - ti,regulator-decay		: This is applicable for buck[1-6], set this if
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/net/mediatek-net.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/net/mediatek-net.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/net/mediatek-net.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/net/mediatek-net.txt	2017-09-27 08:40:05.000000000 -0400
@@ -7,7 +7,7 @@ have dual GMAC each represented by a chi
 * Ethernet controller node
 
 Required properties:
-- compatible: Should be "mediatek,mt7623-eth"
+- compatible: Should be "mediatek,mt2701-eth"
 - reg: Address and length of the register set for the device
 - interrupts: Should contain the three frame engines interrupts in numeric
 	order. These are fe_int0, fe_int1 and fe_int2.
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/net/phy.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/net/phy.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/net/phy.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/net/phy.txt	2017-09-27 08:40:05.000000000 -0400
@@ -35,6 +35,15 @@ Optional Properties:
 - broken-turn-around: If set, indicates the PHY device does not correctly
   release the turn around line low at the end of a MDIO transaction.
 
+- eee-broken-100tx:
+- eee-broken-1000t:
+- eee-broken-10gt:
+- eee-broken-1000kx:
+- eee-broken-10gkx4:
+- eee-broken-10gkr:
+  Mark the corresponding energy efficient ethernet mode as broken and
+  request the ethernet to stop advertising it.
+
 Example:
 
 ethernet-phy@0 {
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/net/ti,dp83867.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/net/ti,dp83867.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/net/ti,dp83867.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/net/ti,dp83867.txt	2017-09-27 08:40:05.000000000 -0400
@@ -3,9 +3,11 @@
 Required properties:
 	- reg - The ID number for the phy, usually a small integer
 	- ti,rx-internal-delay - RGMII Receive Clock Delay - see dt-bindings/net/ti-dp83867.h
-		for applicable values
+		for applicable values. Required only if interface type is
+		PHY_INTERFACE_MODE_RGMII_ID or PHY_INTERFACE_MODE_RGMII_RXID
 	- ti,tx-internal-delay - RGMII Transmit Clock Delay - see dt-bindings/net/ti-dp83867.h
-		for applicable values
+		for applicable values. Required only if interface type is
+		PHY_INTERFACE_MODE_RGMII_ID or PHY_INTERFACE_MODE_RGMII_TXID
 	- ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
 		for applicable values
 
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/power/supply/tps65217_charger.txt	2017-09-27 08:40:05.000000000 -0400
@@ -2,11 +2,16 @@ TPS65217 Charger
 
 Required Properties:
 -compatible: "ti,tps65217-charger"
+-interrupts: TPS65217 interrupt numbers for the AC and USB charger input change.
+             Should be <0> for the USB charger and <1> for the AC adapter.
+-interrupt-names: Should be "USB" and "AC"
 
 This node is a subnode of the tps65217 PMIC.
 
 Example:
 
 	tps65217-charger {
-		compatible = "ti,tps65090-charger";
+		compatible = "ti,tps65217-charger";
+		interrupts = <0>, <1>;
+		interrupt-names = "USB", "AC";
 	};
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/usb/usb-xhci.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/usb/usb-xhci.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/usb/usb-xhci.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/usb/usb-xhci.txt	2017-09-27 08:40:05.000000000 -0400
@@ -26,6 +26,7 @@ Required properties:
 Optional properties:
   - clocks: reference to a clock
   - usb3-lpm-capable: determines if platform is USB3 LPM capable
+  - quirk-broken-port-ped: set if the controller has broken port disable mechanism
 
 Example:
 	usb@f0931000 {
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
--- linux-libre-4.9-gnu/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt	2017-09-27 08:40:05.000000000 -0400
@@ -6,10 +6,11 @@ occurred.
 
 Required properties:
 - compatible : should be one among the following
-	(a) "samsung,s3c2410-wdt" for Exynos4 and previous SoCs
-	(b) "samsung,exynos5250-wdt" for Exynos5250
-	(c) "samsung,exynos5420-wdt" for Exynos5420
-	(c) "samsung,exynos7-wdt" for Exynos7
+	- "samsung,s3c2410-wdt" for S3C2410
+	- "samsung,s3c6410-wdt" for S3C6410, S5PV210 and Exynos4
+	- "samsung,exynos5250-wdt" for Exynos5250
+	- "samsung,exynos5420-wdt" for Exynos5420
+	- "samsung,exynos7-wdt" for Exynos7
 
 - reg : base physical address of the controller and length of memory mapped
 	region.
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/kernel-parameters.txt linux-libre-4.9.52-gnu/Documentation/kernel-parameters.txt
--- linux-libre-4.9-gnu/Documentation/kernel-parameters.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/kernel-parameters.txt	2017-09-27 08:40:05.000000000 -0400
@@ -305,6 +305,16 @@ bytes respectively. Such letter suffixes
 			use by PCI
 			Format: <irq>,<irq>...
 
+	acpi_mask_gpe=  [HW,ACPI]
+			Due to the existence of _Lxx/_Exx, some GPEs triggered
+			by unsupported hardware/firmware features can result in
+                        GPE floodings that cannot be automatically disabled by
+                        the GPE dispatcher.
+			This facility can be used to prevent such uncontrolled
+			GPE floodings.
+			Format: <int>
+			Support masking of GPEs numbered from 0x00 to 0x7f.
+
 	acpi_no_auto_serialize	[HW,ACPI]
 			Disable auto-serialization of AML methods
 			AML control methods that contain the opcodes to create
@@ -1391,6 +1401,10 @@ bytes respectively. Such letter suffixes
 			When zero, profiling data is discarded and associated
 			debugfs files are removed at module unload time.
 
+	goldfish	[X86] Enable the goldfish android emulator platform.
+			Don't use this when you are not running on the
+			android emulator
+
 	gpt		[EFI] Forces disk with valid GPT signature but
 			invalid Protective MBR to be treated as GPT. If the
 			primary GPT is corrupted, it enables the backup/alternate
@@ -3918,6 +3932,13 @@ bytes respectively. Such letter suffixes
 	spia_pedr=
 	spia_peddr=
 
+	stack_guard_gap=	[MM]
+			override the default stack gap protection. The value
+			is in page units and it defines how many pages prior
+			to (for stacks growing down) resp. after (for stacks
+			growing up) the main stack are reserved for no other
+			mapping. Default value is 256 pages.
+
 	stacktrace	[FTRACE]
 			Enabled the stack tracer on boot up.
 
@@ -3998,10 +4019,11 @@ bytes respectively. Such letter suffixes
 			it if 0 is given (See Documentation/cgroup-v1/memory.txt)
 
 	swiotlb=	[ARM,IA-64,PPC,MIPS,X86]
-			Format: { <int> | force }
+			Format: { <int> | force | noforce }
 			<int> -- Number of I/O TLB slabs
 			force -- force using of bounce buffers even if they
 			         wouldn't be automatically used by the kernel
+			noforce -- Never use bounce buffers (for debugging)
 
 	switches=	[HW,M68k]
 
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/media/index.rst linux-libre-4.9.52-gnu/Documentation/media/index.rst
--- linux-libre-4.9-gnu/Documentation/media/index.rst	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/media/index.rst	2017-09-27 08:40:05.000000000 -0400
@@ -1,11 +1,6 @@
 Linux Media Subsystem Documentation
 ===================================
 
-.. Sphinx 1.4.x has a definition for DUrole that doesn't work on alltt blocks
-.. raw:: latex
-
-	\renewcommand*{\DUrole}[2]{ #2 }
-
 Contents:
 
 .. toctree::
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/media/uapi/v4l/pixfmt-007.rst linux-libre-4.9.52-gnu/Documentation/media/uapi/v4l/pixfmt-007.rst
--- linux-libre-4.9-gnu/Documentation/media/uapi/v4l/pixfmt-007.rst	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/media/uapi/v4l/pixfmt-007.rst	2017-09-27 08:40:05.000000000 -0400
@@ -211,7 +211,13 @@ Colorspace sRGB (V4L2_COLORSPACE_SRGB)
 The :ref:`srgb` standard defines the colorspace used by most webcams
 and computer graphics. The default transfer function is
 ``V4L2_XFER_FUNC_SRGB``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is full range.
+``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited range.
+
+Note that the :ref:`sycc` standard specifies full range quantization,
+however all current capture hardware supported by the kernel convert
+R'G'B' to limited range Y'CbCr. So choosing full range as the default
+would break how applications interpret the quantization range.
+
 The chromaticities of the primary colors and the white reference are:
 
 
@@ -276,7 +282,7 @@ the following ``V4L2_YCBCR_ENC_601`` enc
 
 Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
 [-0.5…0.5]. This transform is identical to one defined in SMPTE
-170M/BT.601. The Y'CbCr quantization is full range.
+170M/BT.601. The Y'CbCr quantization is limited range.
 
 
 .. _col-adobergb:
@@ -288,10 +294,15 @@ The :ref:`adobergb` standard defines the
 graphics that use the AdobeRGB colorspace. This is also known as the
 :ref:`oprgb` standard. The default transfer function is
 ``V4L2_XFER_FUNC_ADOBERGB``. The default Y'CbCr encoding is
-``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is full
-range. The chromaticities of the primary colors and the white reference
-are:
+``V4L2_YCBCR_ENC_601``. The default Y'CbCr quantization is limited
+range.
 
+Note that the :ref:`oprgb` standard specifies full range quantization,
+however all current capture hardware supported by the kernel convert
+R'G'B' to limited range Y'CbCr. So choosing full range as the default
+would break how applications interpret the quantization range.
+
+The chromaticities of the primary colors and the white reference are:
 
 
 .. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}|
@@ -344,7 +355,7 @@ the following ``V4L2_YCBCR_ENC_601`` enc
 
 Y' is clamped to the range [0…1] and Cb and Cr are clamped to the range
 [-0.5…0.5]. This transform is identical to one defined in SMPTE
-170M/BT.601. The Y'CbCr quantization is full range.
+170M/BT.601. The Y'CbCr quantization is limited range.
 
 
 .. _col-bt2020:
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/sphinx/rstFlatTable.py linux-libre-4.9.52-gnu/Documentation/sphinx/rstFlatTable.py
--- linux-libre-4.9-gnu/Documentation/sphinx/rstFlatTable.py	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/sphinx/rstFlatTable.py	2017-09-27 08:40:05.000000000 -0400
@@ -157,6 +157,11 @@ class ListTableBuilder(object):
     def buildTableNode(self):
 
         colwidths    = self.directive.get_column_widths(self.max_cols)
+        if isinstance(colwidths, tuple):
+            # Since docutils 0.13, get_column_widths returns a (widths,
+            # colwidths) tuple, where widths is a string (i.e. 'auto').
+            # See https://sourceforge.net/p/docutils/patches/120/.
+            colwidths = colwidths[1]
         stub_columns = self.directive.options.get('stub-columns', 0)
         header_rows  = self.directive.options.get('header-rows', 0)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/stable_kernel_rules.txt linux-libre-4.9.52-gnu/Documentation/stable_kernel_rules.txt
--- linux-libre-4.9-gnu/Documentation/stable_kernel_rules.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/stable_kernel_rules.txt	2017-09-27 08:40:05.000000000 -0400
@@ -124,7 +124,7 @@ specified in the following format in the
 
 .. code-block:: none
 
-     Cc: <stable@vger.kernel.org> # 3.3.x-
+     Cc: <stable@vger.kernel.org> # 3.3.x
 
 The tag has the meaning of:
 
diff -druNp --no-dereference linux-libre-4.9-gnu/Documentation/virtual/kvm/api.txt linux-libre-4.9.52-gnu/Documentation/virtual/kvm/api.txt
--- linux-libre-4.9-gnu/Documentation/virtual/kvm/api.txt	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/Documentation/virtual/kvm/api.txt	2017-09-27 08:40:05.000000000 -0400
@@ -2050,6 +2050,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_TM_VSCR           | 32
   PPC   | KVM_REG_PPC_TM_DSCR           | 64
   PPC   | KVM_REG_PPC_TM_TAR            | 64
+  PPC   | KVM_REG_PPC_TM_XER            | 64
         |                               |
   MIPS  | KVM_REG_MIPS_R0               | 64
           ...
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/acpi_platform.c linux-libre-4.9.52-gnu/drivers/acpi/acpi_platform.c
--- linux-libre-4.9-gnu/drivers/acpi/acpi_platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/acpi_platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -25,9 +25,11 @@
 ACPI_MODULE_NAME("platform");
 
 static const struct acpi_device_id forbidden_id_list[] = {
-	{"PNP0000", 0},	/* PIC */
-	{"PNP0100", 0},	/* Timer */
-	{"PNP0200", 0},	/* AT DMA Controller */
+	{"PNP0000",  0},	/* PIC */
+	{"PNP0100",  0},	/* Timer */
+	{"PNP0200",  0},	/* AT DMA Controller */
+	{"ACPI0009", 0},	/* IOxAPIC */
+	{"ACPI000A", 0},	/* IOAPIC */
 	{"", 0},
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/apei/ghes.c linux-libre-4.9.52-gnu/drivers/acpi/apei/ghes.c
--- linux-libre-4.9-gnu/drivers/acpi/apei/ghes.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/apei/ghes.c	2017-09-27 08:40:05.000000000 -0400
@@ -852,6 +852,8 @@ static int ghes_notify_nmi(unsigned int
 		if (ghes_read_estatus(ghes, 1)) {
 			ghes_clear_estatus(ghes);
 			continue;
+		} else {
+			ret = NMI_HANDLED;
 		}
 
 		sev = ghes_severity(ghes->estatus->error_severity);
@@ -863,12 +865,11 @@ static int ghes_notify_nmi(unsigned int
 
 		__process_error(ghes);
 		ghes_clear_estatus(ghes);
-
-		ret = NMI_HANDLED;
 	}
 
 #ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
-	irq_work_queue(&ghes_proc_irq_work);
+	if (ret == NMI_HANDLED)
+		irq_work_queue(&ghes_proc_irq_work);
 #endif
 	atomic_dec(&ghes_in_nmi);
 	return ret;
@@ -1071,6 +1072,7 @@ static int ghes_remove(struct platform_d
 		if (list_empty(&ghes_sci))
 			unregister_acpi_hed_notifier(&ghes_notifier_sci);
 		mutex_unlock(&ghes_list_mutex);
+		synchronize_rcu();
 		break;
 	case ACPI_HEST_NOTIFY_NMI:
 		ghes_nmi_remove(ghes);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/blacklist.c linux-libre-4.9.52-gnu/drivers/acpi/blacklist.c
--- linux-libre-4.9-gnu/drivers/acpi/blacklist.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/blacklist.c	2017-09-27 08:40:05.000000000 -0400
@@ -160,6 +160,34 @@ static struct dmi_system_id acpi_rev_dmi
 		      DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
 		},
 	},
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Precision 5520",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Precision 5520"),
+		},
+	},
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Precision 3520",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Precision 3520"),
+		},
+	},
+	/*
+	 * Resolves a quirk with the Dell Latitude 3350 that
+	 * causes the ethernet adapter to not function.
+	 */
+	{
+	 .callback = dmi_enable_rev_override,
+	 .ident = "DELL Latitude 3350",
+	 .matches = {
+		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		      DMI_MATCH(DMI_PRODUCT_NAME, "Latitude 3350"),
+		},
+	},
 #endif
 	{}
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/cppc_acpi.c linux-libre-4.9.52-gnu/drivers/acpi/cppc_acpi.c
--- linux-libre-4.9-gnu/drivers/acpi/cppc_acpi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/cppc_acpi.c	2017-09-27 08:40:05.000000000 -0400
@@ -784,8 +784,10 @@ int acpi_cppc_processor_probe(struct acp
 
 	/* Add per logical CPU nodes for reading its feedback counters. */
 	cpu_dev = get_cpu_device(pr->id);
-	if (!cpu_dev)
+	if (!cpu_dev) {
+		ret = -EINVAL;
 		goto out_free;
+	}
 
 	ret = kobject_init_and_add(&cpc_ptr->kobj, &cppc_ktype, &cpu_dev->kobj,
 			"acpi_cppc");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/ec.c linux-libre-4.9.52-gnu/drivers/acpi/ec.c
--- linux-libre-4.9-gnu/drivers/acpi/ec.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/ec.c	2017-09-27 08:40:05.000000000 -0400
@@ -147,7 +147,7 @@ static unsigned int ec_storm_threshold
 module_param(ec_storm_threshold, uint, 0644);
 MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
 
-static bool ec_freeze_events __read_mostly = true;
+static bool ec_freeze_events __read_mostly = false;
 module_param(ec_freeze_events, bool, 0644);
 MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume");
 
@@ -729,12 +729,12 @@ static void start_transaction(struct acp
 
 static int ec_guard(struct acpi_ec *ec)
 {
-	unsigned long guard = usecs_to_jiffies(ec_polling_guard);
+	unsigned long guard = usecs_to_jiffies(ec->polling_guard);
 	unsigned long timeout = ec->timestamp + guard;
 
 	/* Ensure guarding period before polling EC status */
 	do {
-		if (ec_busy_polling) {
+		if (ec->busy_polling) {
 			/* Perform busy polling */
 			if (ec_transaction_completed(ec))
 				return 0;
@@ -998,6 +998,28 @@ static void acpi_ec_stop(struct acpi_ec
 	spin_unlock_irqrestore(&ec->lock, flags);
 }
 
+static void acpi_ec_enter_noirq(struct acpi_ec *ec)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ec->lock, flags);
+	ec->busy_polling = true;
+	ec->polling_guard = 0;
+	ec_log_drv("interrupt blocked");
+	spin_unlock_irqrestore(&ec->lock, flags);
+}
+
+static void acpi_ec_leave_noirq(struct acpi_ec *ec)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ec->lock, flags);
+	ec->busy_polling = ec_busy_polling;
+	ec->polling_guard = ec_polling_guard;
+	ec_log_drv("interrupt unblocked");
+	spin_unlock_irqrestore(&ec->lock, flags);
+}
+
 void acpi_ec_block_transactions(void)
 {
 	struct acpi_ec *ec = first_ec;
@@ -1278,7 +1300,7 @@ acpi_ec_space_handler(u32 function, acpi
 	if (function != ACPI_READ && function != ACPI_WRITE)
 		return AE_BAD_PARAMETER;
 
-	if (ec_busy_polling || bits > 8)
+	if (ec->busy_polling || bits > 8)
 		acpi_ec_burst_enable(ec);
 
 	for (i = 0; i < bytes; ++i, ++address, ++value)
@@ -1286,7 +1308,7 @@ acpi_ec_space_handler(u32 function, acpi
 			acpi_ec_read(ec, address, value) :
 			acpi_ec_write(ec, address, *value);
 
-	if (ec_busy_polling || bits > 8)
+	if (ec->busy_polling || bits > 8)
 		acpi_ec_burst_disable(ec);
 
 	switch (result) {
@@ -1329,6 +1351,8 @@ static struct acpi_ec *acpi_ec_alloc(voi
 	spin_lock_init(&ec->lock);
 	INIT_WORK(&ec->work, acpi_ec_event_handler);
 	ec->timestamp = jiffies;
+	ec->busy_polling = true;
+	ec->polling_guard = 0;
 	return ec;
 }
 
@@ -1390,6 +1414,7 @@ static int ec_install_handlers(struct ac
 	acpi_ec_start(ec, false);
 
 	if (!test_bit(EC_FLAGS_EC_HANDLER_INSTALLED, &ec->flags)) {
+		acpi_ec_enter_noirq(ec);
 		status = acpi_install_address_space_handler(ec->handle,
 							    ACPI_ADR_SPACE_EC,
 							    &acpi_ec_space_handler,
@@ -1429,6 +1454,7 @@ static int ec_install_handlers(struct ac
 		/* This is not fatal as we can poll EC events */
 		if (ACPI_SUCCESS(status)) {
 			set_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags);
+			acpi_ec_leave_noirq(ec);
 			if (test_bit(EC_FLAGS_STARTED, &ec->flags) &&
 			    ec->reference_count >= 1)
 				acpi_ec_enable_gpe(ec, true);
@@ -1702,7 +1728,7 @@ error:
  * functioning ECDT EC first in order to handle the events.
  * https://bugzilla.kernel.org/show_bug.cgi?id=115021
  */
-int __init acpi_ec_ecdt_start(void)
+static int __init acpi_ec_ecdt_start(void)
 {
 	acpi_handle handle;
 
@@ -1839,52 +1865,6 @@ error:
 }
 
 #ifdef CONFIG_PM_SLEEP
-static void acpi_ec_enter_noirq(struct acpi_ec *ec)
-{
-	unsigned long flags;
-
-	if (ec == first_ec) {
-		spin_lock_irqsave(&ec->lock, flags);
-		ec->saved_busy_polling = ec_busy_polling;
-		ec->saved_polling_guard = ec_polling_guard;
-		ec_busy_polling = true;
-		ec_polling_guard = 0;
-		ec_log_drv("interrupt blocked");
-		spin_unlock_irqrestore(&ec->lock, flags);
-	}
-}
-
-static void acpi_ec_leave_noirq(struct acpi_ec *ec)
-{
-	unsigned long flags;
-
-	if (ec == first_ec) {
-		spin_lock_irqsave(&ec->lock, flags);
-		ec_busy_polling = ec->saved_busy_polling;
-		ec_polling_guard = ec->saved_polling_guard;
-		ec_log_drv("interrupt unblocked");
-		spin_unlock_irqrestore(&ec->lock, flags);
-	}
-}
-
-static int acpi_ec_suspend_noirq(struct device *dev)
-{
-	struct acpi_ec *ec =
-		acpi_driver_data(to_acpi_device(dev));
-
-	acpi_ec_enter_noirq(ec);
-	return 0;
-}
-
-static int acpi_ec_resume_noirq(struct device *dev)
-{
-	struct acpi_ec *ec =
-		acpi_driver_data(to_acpi_device(dev));
-
-	acpi_ec_leave_noirq(ec);
-	return 0;
-}
-
 static int acpi_ec_suspend(struct device *dev)
 {
 	struct acpi_ec *ec =
@@ -1906,7 +1886,6 @@ static int acpi_ec_resume(struct device
 #endif
 
 static const struct dev_pm_ops acpi_ec_pm = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend_noirq, acpi_ec_resume_noirq)
 	SET_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend, acpi_ec_resume)
 };
 
@@ -1980,20 +1959,17 @@ static inline void acpi_ec_query_exit(vo
 int __init acpi_ec_init(void)
 {
 	int result;
+	int ecdt_fail, dsdt_fail;
 
 	/* register workqueue for _Qxx evaluations */
 	result = acpi_ec_query_init();
 	if (result)
-		goto err_exit;
-	/* Now register the driver for the EC */
-	result = acpi_bus_register_driver(&acpi_ec_driver);
-	if (result)
-		goto err_exit;
+		return result;
 
-err_exit:
-	if (result)
-		acpi_ec_query_exit();
-	return result;
+	/* Drivers must be started after acpi_ec_query_init() */
+	ecdt_fail = acpi_ec_ecdt_start();
+	dsdt_fail = acpi_bus_register_driver(&acpi_ec_driver);
+	return ecdt_fail && dsdt_fail ? -ENODEV : 0;
 }
 
 /* EC driver currently not unloadable */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/glue.c linux-libre-4.9.52-gnu/drivers/acpi/glue.c
--- linux-libre-4.9-gnu/drivers/acpi/glue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/glue.c	2017-09-27 08:40:05.000000000 -0400
@@ -98,7 +98,15 @@ static int find_child_checks(struct acpi
 	if (check_children && list_empty(&adev->children))
 		return -ENODEV;
 
-	return sta_present ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE;
+	/*
+	 * If the device has a _HID (or _CID) returning a valid ACPI/PNP
+	 * device ID, it is better to make it look less attractive here, so that
+	 * the other device with the same _ADR value (that may not have a valid
+	 * device ID) can be matched going forward.  [This means a second spec
+	 * violation in a row, so whatever we do here is best effort anyway.]
+	 */
+	return sta_present && list_empty(&adev->pnp.ids) ?
+			FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE;
 }
 
 struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/internal.h linux-libre-4.9.52-gnu/drivers/acpi/internal.h
--- linux-libre-4.9-gnu/drivers/acpi/internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -37,6 +37,7 @@ void acpi_amba_init(void);
 static inline void acpi_amba_init(void) {}
 #endif
 int acpi_sysfs_init(void);
+void acpi_gpe_apply_masked_gpes(void);
 void acpi_container_init(void);
 void acpi_memory_hotplug_init(void);
 #ifdef	CONFIG_ACPI_HOTPLUG_IOAPIC
@@ -171,8 +172,8 @@ struct acpi_ec {
 	struct work_struct work;
 	unsigned long timestamp;
 	unsigned long nr_pending_queries;
-	bool saved_busy_polling;
-	unsigned int saved_polling_guard;
+	bool busy_polling;
+	unsigned int polling_guard;
 };
 
 extern struct acpi_ec *first_ec;
@@ -184,7 +185,6 @@ typedef int (*acpi_ec_query_func) (void
 int acpi_ec_init(void);
 int acpi_ec_ecdt_probe(void);
 int acpi_ec_dsdt_probe(void);
-int acpi_ec_ecdt_start(void);
 void acpi_ec_block_transactions(void);
 void acpi_ec_unblock_transactions(void);
 int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/ioapic.c linux-libre-4.9.52-gnu/drivers/acpi/ioapic.c
--- linux-libre-4.9-gnu/drivers/acpi/ioapic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/ioapic.c	2017-09-27 08:40:05.000000000 -0400
@@ -45,6 +45,12 @@ static acpi_status setup_res(struct acpi
 	struct resource *res = data;
 	struct resource_win win;
 
+	/*
+	 * We might assign this to 'res' later, make sure all pointers are
+	 * cleared before the resource is added to the global list
+	 */
+	memset(&win, 0, sizeof(win));
+
 	res->flags = 0;
 	if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM))
 		return AE_OK;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/Makefile linux-libre-4.9.52-gnu/drivers/acpi/Makefile
--- linux-libre-4.9-gnu/drivers/acpi/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -2,7 +2,6 @@
 # Makefile for the Linux ACPI interpreter
 #
 
-ccflags-y			:= -Os
 ccflags-$(CONFIG_ACPI_DEBUG)	+= -DACPI_DEBUG_OUTPUT
 
 #
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/nfit/core.c linux-libre-4.9.52-gnu/drivers/acpi/nfit/core.c
--- linux-libre-4.9-gnu/drivers/acpi/nfit/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/nfit/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1603,7 +1603,7 @@ static size_t sizeof_nfit_set_info(int n
 		+ num_mappings * sizeof(struct nfit_set_info_map);
 }
 
-static int cmp_map(const void *m0, const void *m1)
+static int cmp_map_compat(const void *m0, const void *m1)
 {
 	const struct nfit_set_info_map *map0 = m0;
 	const struct nfit_set_info_map *map1 = m1;
@@ -1612,6 +1612,18 @@ static int cmp_map(const void *m0, const
 			sizeof(u64));
 }
 
+static int cmp_map(const void *m0, const void *m1)
+{
+	const struct nfit_set_info_map *map0 = m0;
+	const struct nfit_set_info_map *map1 = m1;
+
+	if (map0->region_offset < map1->region_offset)
+		return -1;
+	else if (map0->region_offset > map1->region_offset)
+		return 1;
+	return 0;
+}
+
 /* Retrieve the nth entry referencing this spa */
 static struct acpi_nfit_memory_map *memdev_from_spa(
 		struct acpi_nfit_desc *acpi_desc, u16 range_index, int n)
@@ -1667,6 +1679,12 @@ static int acpi_nfit_init_interleave_set
 	sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
 			cmp_map, NULL);
 	nd_set->cookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+
+	/* support namespaces created with the wrong sort order */
+	sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
+			cmp_map_compat, NULL);
+	nd_set->altcookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+
 	ndr_desc->nd_set = nd_set;
 	devm_kfree(dev, info);
 
@@ -2704,6 +2722,7 @@ static int acpi_nfit_flush_probe(struct
 	struct acpi_nfit_desc *acpi_desc = to_acpi_nfit_desc(nd_desc);
 	struct device *dev = acpi_desc->dev;
 	struct acpi_nfit_flush_work flush;
+	int rc;
 
 	/* bounce the device lock to flush acpi_nfit_add / acpi_nfit_notify */
 	device_lock(dev);
@@ -2716,7 +2735,10 @@ static int acpi_nfit_flush_probe(struct
 	INIT_WORK_ONSTACK(&flush.work, flush_probe);
 	COMPLETION_INITIALIZER_ONSTACK(flush.cmp);
 	queue_work(nfit_wq, &flush.work);
-	return wait_for_completion_interruptible(&flush.cmp);
+
+	rc = wait_for_completion_interruptible(&flush.cmp);
+	cancel_work_sync(&flush.work);
+	return rc;
 }
 
 static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
@@ -2923,6 +2945,8 @@ static struct acpi_driver acpi_nfit_driv
 
 static __init int nfit_init(void)
 {
+	int ret;
+
 	BUILD_BUG_ON(sizeof(struct acpi_table_nfit) != 40);
 	BUILD_BUG_ON(sizeof(struct acpi_nfit_system_address) != 56);
 	BUILD_BUG_ON(sizeof(struct acpi_nfit_memory_map) != 48);
@@ -2950,8 +2974,14 @@ static __init int nfit_init(void)
 		return -ENOMEM;
 
 	nfit_mce_register();
+	ret = acpi_bus_register_driver(&acpi_nfit_driver);
+	if (ret) {
+		nfit_mce_unregister();
+		destroy_workqueue(nfit_wq);
+	}
+
+	return ret;
 
-	return acpi_bus_register_driver(&acpi_nfit_driver);
 }
 
 static __exit void nfit_exit(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/nfit/mce.c linux-libre-4.9.52-gnu/drivers/acpi/nfit/mce.c
--- linux-libre-4.9-gnu/drivers/acpi/nfit/mce.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/nfit/mce.c	2017-09-27 08:40:05.000000000 -0400
@@ -26,7 +26,7 @@ static int nfit_handle_mce(struct notifi
 	struct nfit_spa *nfit_spa;
 
 	/* We only care about memory errors */
-	if (!(mce->status & MCACOD))
+	if (!mce_is_memory_error(mce))
 		return NOTIFY_DONE;
 
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/power.c linux-libre-4.9.52-gnu/drivers/acpi/power.c
--- linux-libre-4.9-gnu/drivers/acpi/power.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/power.c	2017-09-27 08:40:05.000000000 -0400
@@ -200,6 +200,7 @@ static int acpi_power_get_list_state(str
 		return -EINVAL;
 
 	/* The state of the list is 'on' IFF all resources are 'on'. */
+	cur_state = 0;
 	list_for_each_entry(entry, list, node) {
 		struct acpi_power_resource *resource = entry->resource;
 		acpi_handle handle = resource->device.handle;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/scan.c linux-libre-4.9.52-gnu/drivers/acpi/scan.c
--- linux-libre-4.9-gnu/drivers/acpi/scan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/scan.c	2017-09-27 08:40:05.000000000 -0400
@@ -1827,15 +1827,20 @@ static void acpi_bus_attach(struct acpi_
 		return;
 
 	device->flags.match_driver = true;
-	if (!ret) {
-		ret = device_attach(&device->dev);
-		if (ret < 0)
-			return;
-
-		if (!ret && device->pnp.type.platform_id)
-			acpi_default_enumeration(device);
+	if (ret > 0) {
+		acpi_device_set_enumerated(device);
+		goto ok;
 	}
 
+	ret = device_attach(&device->dev);
+	if (ret < 0)
+		return;
+
+	if (ret > 0 || !device->pnp.type.platform_id)
+		acpi_device_set_enumerated(device);
+	else
+		acpi_default_enumeration(device);
+
  ok:
 	list_for_each_entry(child, &device->children, node)
 		acpi_bus_attach(child);
@@ -2044,8 +2049,8 @@ int __init acpi_scan_init(void)
 		}
 	}
 
+	acpi_gpe_apply_masked_gpes();
 	acpi_update_all_gpes();
-	acpi_ec_ecdt_start();
 
 	acpi_scan_initialized = true;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/sleep.c linux-libre-4.9.52-gnu/drivers/acpi/sleep.c
--- linux-libre-4.9-gnu/drivers/acpi/sleep.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/sleep.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,6 +130,12 @@ void __init acpi_nvs_nosave_s3(void)
 	nvs_nosave_s3 = true;
 }
 
+static int __init init_nvs_save_s3(const struct dmi_system_id *d)
+{
+	nvs_nosave_s3 = false;
+	return 0;
+}
+
 /*
  * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
  * user to request that behavior by using the 'acpi_old_suspend_ordering'
@@ -324,6 +330,19 @@ static struct dmi_system_id acpisleep_dm
 		DMI_MATCH(DMI_PRODUCT_NAME, "K54HR"),
 		},
 	},
+	/*
+	 * https://bugzilla.kernel.org/show_bug.cgi?id=189431
+	 * Lenovo G50-45 is a platform later than 2012, but needs nvs memory
+	 * saving during S3.
+	 */
+	{
+	.callback = init_nvs_save_s3,
+	.ident = "Lenovo G50-45",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "80E3"),
+		},
+	},
 	{},
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/sysfs.c linux-libre-4.9.52-gnu/drivers/acpi/sysfs.c
--- linux-libre-4.9-gnu/drivers/acpi/sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -708,6 +708,62 @@ end:
 	return result ? result : size;
 }
 
+/*
+ * A Quirk Mechanism for GPE Flooding Prevention:
+ *
+ * Quirks may be needed to prevent GPE flooding on a specific GPE. The
+ * flooding typically cannot be detected and automatically prevented by
+ * ACPI_GPE_DISPATCH_NONE check because there is a _Lxx/_Exx prepared in
+ * the AML tables. This normally indicates a feature gap in Linux, thus
+ * instead of providing endless quirk tables, we provide a boot parameter
+ * for those who want this quirk. For example, if the users want to prevent
+ * the GPE flooding for GPE 00, they need to specify the following boot
+ * parameter:
+ *   acpi_mask_gpe=0x00
+ * The masking status can be modified by the following runtime controlling
+ * interface:
+ *   echo unmask > /sys/firmware/acpi/interrupts/gpe00
+ */
+
+/*
+ * Currently, the GPE flooding prevention only supports to mask the GPEs
+ * numbered from 00 to 7f.
+ */
+#define ACPI_MASKABLE_GPE_MAX	0x80
+
+static u64 __initdata acpi_masked_gpes;
+
+static int __init acpi_gpe_set_masked_gpes(char *val)
+{
+	u8 gpe;
+
+	if (kstrtou8(val, 0, &gpe) || gpe > ACPI_MASKABLE_GPE_MAX)
+		return -EINVAL;
+	acpi_masked_gpes |= ((u64)1<<gpe);
+
+	return 1;
+}
+__setup("acpi_mask_gpe=", acpi_gpe_set_masked_gpes);
+
+void __init acpi_gpe_apply_masked_gpes(void)
+{
+	acpi_handle handle;
+	acpi_status status;
+	u8 gpe;
+
+	for (gpe = 0;
+	     gpe < min_t(u8, ACPI_MASKABLE_GPE_MAX, acpi_current_gpe_count);
+	     gpe++) {
+		if (acpi_masked_gpes & ((u64)1<<gpe)) {
+			status = acpi_get_gpe_device(gpe, &handle);
+			if (ACPI_SUCCESS(status)) {
+				pr_info("Masking GPE 0x%x.\n", gpe);
+				(void)acpi_mask_gpe(handle, gpe, TRUE);
+			}
+		}
+	}
+}
+
 void acpi_irq_stats_init(void)
 {
 	acpi_status status;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/acpi/video_detect.c linux-libre-4.9.52-gnu/drivers/acpi/video_detect.c
--- linux-libre-4.9-gnu/drivers/acpi/video_detect.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/acpi/video_detect.c	2017-09-27 08:40:05.000000000 -0400
@@ -296,6 +296,26 @@ static const struct dmi_system_id video_
 		DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"),
 		},
 	},
+	{
+	 /* https://bugzilla.redhat.com/show_bug.cgi?id=1123661 */
+	 .callback = video_detect_force_native,
+	 .ident = "Dell XPS 17 L702X",
+	 .matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L702X"),
+		},
+	},
+	{
+	/* https://bugzilla.redhat.com/show_bug.cgi?id=1204476 */
+	/* https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1416940 */
+	.callback = video_detect_force_native,
+	.ident = "HP Pavilion dv6",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6 Notebook PC"),
+		},
+	},
+
 	{ },
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/android/binder.c linux-libre-4.9.52-gnu/drivers/android/binder.c
--- linux-libre-4.9-gnu/drivers/android/binder.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/android/binder.c	2017-09-27 08:40:05.000000000 -0400
@@ -1724,8 +1724,12 @@ static void binder_transaction(struct bi
 	list_add_tail(&t->work.entry, target_list);
 	tcomplete->type = BINDER_WORK_TRANSACTION_COMPLETE;
 	list_add_tail(&tcomplete->entry, &thread->todo);
-	if (target_wait)
-		wake_up_interruptible(target_wait);
+	if (target_wait) {
+		if (reply || !(t->flags & TF_ONE_WAY))
+			wake_up_interruptible_sync(target_wait);
+		else
+			wake_up_interruptible(target_wait);
+	}
 	return;
 
 err_get_unused_fd_failed:
@@ -2760,10 +2764,6 @@ static long binder_ioctl(struct file *fi
 	/*pr_info("binder_ioctl: %d:%d %x %lx\n",
 			proc->pid, current->pid, cmd, arg);*/
 
-	if (unlikely(current->mm != proc->vma_vm_mm)) {
-		pr_err("current mm mismatch proc mm\n");
-		return -EINVAL;
-	}
 	trace_binder_ioctl(cmd, arg);
 
 	ret = wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
@@ -2875,7 +2875,7 @@ static int binder_mmap(struct file *filp
 	const char *failure_string;
 	struct binder_buffer *buffer;
 
-	if (proc->tsk != current)
+	if (proc->tsk != current->group_leader)
 		return -EINVAL;
 
 	if ((vma->vm_end - vma->vm_start) > SZ_4M)
@@ -2976,9 +2976,8 @@ static int binder_open(struct inode *nod
 	proc = kzalloc(sizeof(*proc), GFP_KERNEL);
 	if (proc == NULL)
 		return -ENOMEM;
-	get_task_struct(current);
-	proc->tsk = current;
-	proc->vma_vm_mm = current->mm;
+	get_task_struct(current->group_leader);
+	proc->tsk = current->group_leader;
 	INIT_LIST_HEAD(&proc->todo);
 	init_waitqueue_head(&proc->wait);
 	proc->default_priority = task_nice(current);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ata/ahci.c linux-libre-4.9.52-gnu/drivers/ata/ahci.c
--- linux-libre-4.9-gnu/drivers/ata/ahci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ata/ahci.c	2017-09-27 08:40:05.000000000 -0400
@@ -1362,6 +1362,40 @@ static inline void ahci_gtf_filter_worka
 {}
 #endif
 
+/*
+ * On the Acer Aspire Switch Alpha 12, sometimes all SATA ports are detected
+ * as DUMMY, or detected but eventually get a "link down" and never get up
+ * again. When this happens, CAP.NP may hold a value of 0x00 or 0x01, and the
+ * port_map may hold a value of 0x00.
+ *
+ * Overriding CAP.NP to 0x02 and the port_map to 0x7 will reveal all 3 ports
+ * and can significantly reduce the occurrence of the problem.
+ *
+ * https://bugzilla.kernel.org/show_bug.cgi?id=189471
+ */
+static void acer_sa5_271_workaround(struct ahci_host_priv *hpriv,
+				    struct pci_dev *pdev)
+{
+	static const struct dmi_system_id sysids[] = {
+		{
+			.ident = "Acer Switch Alpha 12",
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271")
+			},
+		},
+		{ }
+	};
+
+	if (dmi_check_system(sysids)) {
+		dev_info(&pdev->dev, "enabling Acer Switch Alpha 12 workaround\n");
+		if ((hpriv->saved_cap & 0xC734FF00) == 0xC734FF00) {
+			hpriv->port_map = 0x7;
+			hpriv->cap = 0xC734FF02;
+		}
+	}
+}
+
 #ifdef CONFIG_ARM64
 /*
  * Due to ERRATA#22536, ThunderX needs to handle HOST_IRQ_STAT differently.
@@ -1597,6 +1631,10 @@ static int ahci_init_one(struct pci_dev
 			 "online status unreliable, applying workaround\n");
 	}
 
+
+	/* Acer SA5-271 workaround modifies private_data */
+	acer_sa5_271_workaround(hpriv, pdev);
+
 	/* CAP.NP sometimes indicate the index of the last enabled
 	 * port, at other times, that of the last possible port, so
 	 * determining the maximum port number requires looking at
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ata/ahci_da850.c linux-libre-4.9.52-gnu/drivers/ata/ahci_da850.c
--- linux-libre-4.9-gnu/drivers/ata/ahci_da850.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ata/ahci_da850.c	2017-09-27 08:40:05.000000000 -0400
@@ -54,11 +54,42 @@ static void da850_sata_init(struct devic
 	writel(val, ahci_base + SATA_P0PHYCR_REG);
 }
 
+static int ahci_da850_softreset(struct ata_link *link,
+				unsigned int *class, unsigned long deadline)
+{
+	int pmp, ret;
+
+	pmp = sata_srst_pmp(link);
+
+	/*
+	 * There's an issue with the SATA controller on da850 SoCs: if we
+	 * enable Port Multiplier support, but the drive is connected directly
+	 * to the board, it can't be detected. As a workaround: if PMP is
+	 * enabled, we first call ahci_do_softreset() and pass it the result of
+	 * sata_srst_pmp(). If this call fails, we retry with pmp = 0.
+	 */
+	ret = ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready);
+	if (pmp && ret == -EBUSY)
+		return ahci_do_softreset(link, class, 0,
+					 deadline, ahci_check_ready);
+
+	return ret;
+}
+
+static struct ata_port_operations ahci_da850_port_ops = {
+	.inherits = &ahci_platform_ops,
+	.softreset = ahci_da850_softreset,
+	/*
+	 * No need to override .pmp_softreset - it's only used for actual
+	 * PMP-enabled ports.
+	 */
+};
+
 static const struct ata_port_info ahci_da850_port_info = {
 	.flags		= AHCI_FLAG_COMMON,
 	.pio_mask	= ATA_PIO4,
 	.udma_mask	= ATA_UDMA6,
-	.port_ops	= &ahci_platform_ops,
+	.port_ops	= &ahci_da850_port_ops,
 };
 
 static struct scsi_host_template ahci_platform_sht = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ata/libata-core.c linux-libre-4.9.52-gnu/drivers/ata/libata-core.c
--- linux-libre-4.9-gnu/drivers/ata/libata-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ata/libata-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1695,6 +1695,8 @@ unsigned ata_exec_internal_sg(struct ata
 
 		if (qc->err_mask & ~AC_ERR_OTHER)
 			qc->err_mask &= ~AC_ERR_OTHER;
+	} else if (qc->tf.command == ATA_CMD_REQ_SENSE_DATA) {
+		qc->result_tf.command |= ATA_SENSE;
 	}
 
 	/* finish up */
@@ -4316,10 +4318,10 @@ static const struct ata_blacklist_entry
 	{ "ST380013AS",		"3.20",		ATA_HORKAGE_MAX_SEC_1024 },
 
 	/*
-	 * Device times out with higher max sects.
+	 * These devices time out with higher max sects.
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=121671
 	 */
-	{ "LITEON CX1-JB256-HP", NULL,		ATA_HORKAGE_MAX_SEC_1024 },
+	{ "LITEON CX1-JB*-HP",	NULL,		ATA_HORKAGE_MAX_SEC_1024 },
 
 	/* Devices we expect to fail diagnostics */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ata/libata-scsi.c linux-libre-4.9.52-gnu/drivers/ata/libata-scsi.c
--- linux-libre-4.9-gnu/drivers/ata/libata-scsi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ata/libata-scsi.c	2017-09-27 08:40:05.000000000 -0400
@@ -2971,10 +2971,12 @@ static unsigned int atapi_xlat(struct at
 static struct ata_device *ata_find_dev(struct ata_port *ap, int devno)
 {
 	if (!sata_pmp_attached(ap)) {
-		if (likely(devno < ata_link_max_devices(&ap->link)))
+		if (likely(devno >= 0 &&
+			   devno < ata_link_max_devices(&ap->link)))
 			return &ap->link.device[devno];
 	} else {
-		if (likely(devno < ap->nr_pmp_links))
+		if (likely(devno >= 0 &&
+			   devno < ap->nr_pmp_links))
 			return &ap->pmp_link[devno].device[0];
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ata/pata_amd.c linux-libre-4.9.52-gnu/drivers/ata/pata_amd.c
--- linux-libre-4.9-gnu/drivers/ata/pata_amd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ata/pata_amd.c	2017-09-27 08:40:05.000000000 -0400
@@ -616,6 +616,7 @@ static const struct pci_device_id amd[]
 	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE),	8 },
 	{ PCI_VDEVICE(NVIDIA,	PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE),	8 },
 	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_IDE),		9 },
+	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_DEV_IDE),	9 },
 
 	{ },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ata/pata_cs5536.c linux-libre-4.9.52-gnu/drivers/ata/pata_cs5536.c
--- linux-libre-4.9-gnu/drivers/ata/pata_cs5536.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ata/pata_cs5536.c	2017-09-27 08:40:05.000000000 -0400
@@ -289,6 +289,7 @@ static int cs5536_init_one(struct pci_de
 
 static const struct pci_device_id cs5536[] = {
 	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_IDE), },
+	{ PCI_VDEVICE(AMD,	PCI_DEVICE_ID_AMD_CS5536_DEV_IDE), },
 	{ },
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ata/sata_mv.c linux-libre-4.9.52-gnu/drivers/ata/sata_mv.c
--- linux-libre-4.9-gnu/drivers/ata/sata_mv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ata/sata_mv.c	2017-09-27 08:40:05.000000000 -0400
@@ -4132,6 +4132,9 @@ static int mv_platform_probe(struct plat
 	host->iomap = NULL;
 	hpriv->base = devm_ioremap(&pdev->dev, res->start,
 				   resource_size(res));
+	if (!hpriv->base)
+		return -ENOMEM;
+
 	hpriv->base -= SATAHC0_REG_BASE;
 
 	hpriv->clk = clk_get(&pdev->dev, NULL);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/auxdisplay/img-ascii-lcd.c linux-libre-4.9.52-gnu/drivers/auxdisplay/img-ascii-lcd.c
--- linux-libre-4.9-gnu/drivers/auxdisplay/img-ascii-lcd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/auxdisplay/img-ascii-lcd.c	2017-09-27 08:40:05.000000000 -0400
@@ -218,6 +218,7 @@ static const struct of_device_id img_asc
 	{ .compatible = "img,boston-lcd", .data = &boston_config },
 	{ .compatible = "mti,malta-lcd", .data = &malta_config },
 	{ .compatible = "mti,sead3-lcd", .data = &sead3_config },
+	{ /* sentinel */ }
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/bus.c linux-libre-4.9.52-gnu/drivers/base/bus.c
--- linux-libre-4.9-gnu/drivers/base/bus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/bus.c	2017-09-27 08:40:05.000000000 -0400
@@ -736,7 +736,7 @@ int bus_add_driver(struct device_driver
 
 out_unregister:
 	kobject_put(&priv->kobj);
-	kfree(drv->p);
+	/* drv->p is freed in driver_release()  */
 	drv->p = NULL;
 out_put_bus:
 	bus_put(bus);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/core.c linux-libre-4.9.52-gnu/drivers/base/core.c
--- linux-libre-4.9-gnu/drivers/base/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -2095,7 +2095,11 @@ void device_shutdown(void)
 		pm_runtime_get_noresume(dev);
 		pm_runtime_barrier(dev);
 
-		if (dev->bus && dev->bus->shutdown) {
+		if (dev->class && dev->class->shutdown) {
+			if (initcall_debug)
+				dev_info(dev, "shutdown\n");
+			dev->class->shutdown(dev);
+		} else if (dev->bus && dev->bus->shutdown) {
 			if (initcall_debug)
 				dev_info(dev, "shutdown\n");
 			dev->bus->shutdown(dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/firmware_class.c linux-libre-4.9.52-gnu/drivers/base/firmware_class.c
--- linux-libre-4.9-gnu/drivers/base/firmware_class.c	2016-12-11 17:39:18.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/firmware_class.c	2017-09-27 14:34:09.000000000 -0400
@@ -955,13 +955,14 @@ static int _request_firmware_load(struct
 		timeout = MAX_JIFFY_OFFSET;
 	}
 
-	retval = wait_for_completion_interruptible_timeout(&buf->completion,
+	timeout = wait_for_completion_interruptible_timeout(&buf->completion,
 			timeout);
-	if (retval == -ERESTARTSYS || !retval) {
+	if (timeout == -ERESTARTSYS || !timeout) {
+		retval = timeout;
 		mutex_lock(&fw_lock);
 		fw_load_abort(fw_priv);
 		mutex_unlock(&fw_lock);
-	} else if (retval > 0) {
+	} else if (timeout > 0) {
 		retval = 0;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/memory.c linux-libre-4.9.52-gnu/drivers/base/memory.c
--- linux-libre-4.9-gnu/drivers/base/memory.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/memory.c	2017-09-27 08:40:05.000000000 -0400
@@ -391,33 +391,33 @@ static ssize_t show_valid_zones(struct d
 {
 	struct memory_block *mem = to_memory_block(dev);
 	unsigned long start_pfn, end_pfn;
+	unsigned long valid_start, valid_end, valid_pages;
 	unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
-	struct page *first_page;
 	struct zone *zone;
 	int zone_shift = 0;
 
 	start_pfn = section_nr_to_pfn(mem->start_section_nr);
 	end_pfn = start_pfn + nr_pages;
-	first_page = pfn_to_page(start_pfn);
 
 	/* The block contains more than one zone can not be offlined. */
-	if (!test_pages_in_a_zone(start_pfn, end_pfn))
+	if (!test_pages_in_a_zone(start_pfn, end_pfn, &valid_start, &valid_end))
 		return sprintf(buf, "none\n");
 
-	zone = page_zone(first_page);
+	zone = page_zone(pfn_to_page(valid_start));
+	valid_pages = valid_end - valid_start;
 
 	/* MMOP_ONLINE_KEEP */
 	sprintf(buf, "%s", zone->name);
 
 	/* MMOP_ONLINE_KERNEL */
-	zone_shift = zone_can_shift(start_pfn, nr_pages, ZONE_NORMAL);
+	zone_can_shift(valid_start, valid_pages, ZONE_NORMAL, &zone_shift);
 	if (zone_shift) {
 		strcat(buf, " ");
 		strcat(buf, (zone + zone_shift)->name);
 	}
 
 	/* MMOP_ONLINE_MOVABLE */
-	zone_shift = zone_can_shift(start_pfn, nr_pages, ZONE_MOVABLE);
+	zone_can_shift(valid_start, valid_pages, ZONE_MOVABLE, &zone_shift);
 	if (zone_shift) {
 		strcat(buf, " ");
 		strcat(buf, (zone + zone_shift)->name);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/platform.c linux-libre-4.9.52-gnu/drivers/base/platform.c
--- linux-libre-4.9-gnu/drivers/base/platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -856,7 +856,7 @@ static ssize_t driver_override_store(str
 				     const char *buf, size_t count)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	char *driver_override, *old = pdev->driver_override, *cp;
+	char *driver_override, *old, *cp;
 
 	if (count > PATH_MAX)
 		return -EINVAL;
@@ -869,12 +869,15 @@ static ssize_t driver_override_store(str
 	if (cp)
 		*cp = '\0';
 
+	device_lock(dev);
+	old = pdev->driver_override;
 	if (strlen(driver_override)) {
 		pdev->driver_override = driver_override;
 	} else {
 		kfree(driver_override);
 		pdev->driver_override = NULL;
 	}
+	device_unlock(dev);
 
 	kfree(old);
 
@@ -885,8 +888,12 @@ static ssize_t driver_override_show(stru
 				    struct device_attribute *attr, char *buf)
 {
 	struct platform_device *pdev = to_platform_device(dev);
+	ssize_t len;
 
-	return sprintf(buf, "%s\n", pdev->driver_override);
+	device_lock(dev);
+	len = sprintf(buf, "%s\n", pdev->driver_override);
+	device_unlock(dev);
+	return len;
 }
 static DEVICE_ATTR_RW(driver_override);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/power/domain.c linux-libre-4.9.52-gnu/drivers/base/power/domain.c
--- linux-libre-4.9-gnu/drivers/base/power/domain.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/power/domain.c	2017-09-27 08:40:05.000000000 -0400
@@ -1029,8 +1029,6 @@ static struct generic_pm_domain_data *ge
 
 	spin_unlock_irq(&dev->power.lock);
 
-	dev_pm_domain_set(dev, &genpd->domain);
-
 	return gpd_data;
 
  err_free:
@@ -1044,8 +1042,6 @@ static struct generic_pm_domain_data *ge
 static void genpd_free_dev_data(struct device *dev,
 				struct generic_pm_domain_data *gpd_data)
 {
-	dev_pm_domain_set(dev, NULL);
-
 	spin_lock_irq(&dev->power.lock);
 
 	dev->power.subsys_data->domain_data = NULL;
@@ -1082,6 +1078,8 @@ static int genpd_add_device(struct gener
 	if (ret)
 		goto out;
 
+	dev_pm_domain_set(dev, &genpd->domain);
+
 	genpd->device_count++;
 	genpd->max_off_time_changed = true;
 
@@ -1143,6 +1141,8 @@ static int genpd_remove_device(struct ge
 	if (genpd->detach_dev)
 		genpd->detach_dev(genpd, dev);
 
+	dev_pm_domain_set(dev, NULL);
+
 	list_del_init(&pdd->list_node);
 
 	mutex_unlock(&genpd->lock);
@@ -1244,7 +1244,7 @@ EXPORT_SYMBOL_GPL(pm_genpd_add_subdomain
 int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
 			      struct generic_pm_domain *subdomain)
 {
-	struct gpd_link *link;
+	struct gpd_link *l, *link;
 	int ret = -EINVAL;
 
 	if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(subdomain))
@@ -1260,7 +1260,7 @@ int pm_genpd_remove_subdomain(struct gen
 		goto out;
 	}
 
-	list_for_each_entry(link, &genpd->master_links, master_node) {
+	list_for_each_entry_safe(link, l, &genpd->master_links, master_node) {
 		if (link->slave != subdomain)
 			continue;
 
@@ -1607,12 +1607,12 @@ EXPORT_SYMBOL_GPL(of_genpd_add_provider_
  */
 void of_genpd_del_provider(struct device_node *np)
 {
-	struct of_genpd_provider *cp;
+	struct of_genpd_provider *cp, *tmp;
 	struct generic_pm_domain *gpd;
 
 	mutex_lock(&gpd_list_lock);
 	mutex_lock(&of_genpd_mutex);
-	list_for_each_entry(cp, &of_genpd_providers, link) {
+	list_for_each_entry_safe(cp, tmp, &of_genpd_providers, link) {
 		if (cp->node == np) {
 			/*
 			 * For each PM domain associated with the
@@ -1752,14 +1752,14 @@ EXPORT_SYMBOL_GPL(of_genpd_add_subdomain
  */
 struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
 {
-	struct generic_pm_domain *gpd, *genpd = ERR_PTR(-ENOENT);
+	struct generic_pm_domain *gpd, *tmp, *genpd = ERR_PTR(-ENOENT);
 	int ret;
 
 	if (IS_ERR_OR_NULL(np))
 		return ERR_PTR(-EINVAL);
 
 	mutex_lock(&gpd_list_lock);
-	list_for_each_entry(gpd, &gpd_list, gpd_list_node) {
+	list_for_each_entry_safe(gpd, tmp, &gpd_list, gpd_list_node) {
 		if (gpd->provider == &np->fwnode) {
 			ret = genpd_remove(gpd);
 			genpd = ret ? ERR_PTR(ret) : gpd;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/power/opp/core.c linux-libre-4.9.52-gnu/drivers/base/power/opp/core.c
--- linux-libre-4.9-gnu/drivers/base/power/opp/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/power/opp/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -584,6 +584,7 @@ int dev_pm_opp_set_rate(struct device *d
 	struct clk *clk;
 	unsigned long freq, old_freq;
 	unsigned long u_volt, u_volt_min, u_volt_max;
+	unsigned long old_u_volt, old_u_volt_min, old_u_volt_max;
 	int ret;
 
 	if (unlikely(!target_freq)) {
@@ -633,6 +634,14 @@ int dev_pm_opp_set_rate(struct device *d
 		return ret;
 	}
 
+	if (IS_ERR(old_opp)) {
+		old_u_volt = 0;
+	} else {
+		old_u_volt = old_opp->u_volt;
+		old_u_volt_min = old_opp->u_volt_min;
+		old_u_volt_max = old_opp->u_volt_max;
+	}
+
 	u_volt = opp->u_volt;
 	u_volt_min = opp->u_volt_min;
 	u_volt_max = opp->u_volt_max;
@@ -677,9 +686,10 @@ restore_freq:
 			__func__, old_freq);
 restore_voltage:
 	/* This shouldn't harm even if the voltages weren't updated earlier */
-	if (!IS_ERR(old_opp))
-		_set_opp_voltage(dev, reg, old_opp->u_volt,
-				 old_opp->u_volt_min, old_opp->u_volt_max);
+	if (old_u_volt) {
+		_set_opp_voltage(dev, reg, old_u_volt, old_u_volt_min,
+				 old_u_volt_max);
+	}
 
 	return ret;
 }
@@ -1316,7 +1326,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_put_prop_na
  * that this function is *NOT* called under RCU protection or in contexts where
  * mutex cannot be locked.
  */
-int dev_pm_opp_set_regulator(struct device *dev, const char *name)
+struct opp_table *dev_pm_opp_set_regulator(struct device *dev, const char *name)
 {
 	struct opp_table *opp_table;
 	struct regulator *reg;
@@ -1354,20 +1364,20 @@ int dev_pm_opp_set_regulator(struct devi
 	opp_table->regulator = reg;
 
 	mutex_unlock(&opp_table_lock);
-	return 0;
+	return opp_table;
 
 err:
 	_remove_opp_table(opp_table);
 unlock:
 	mutex_unlock(&opp_table_lock);
 
-	return ret;
+	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(dev_pm_opp_set_regulator);
 
 /**
  * dev_pm_opp_put_regulator() - Releases resources blocked for regulator
- * @dev: Device for which regulator was set.
+ * @opp_table: OPP table returned from dev_pm_opp_set_regulator().
  *
  * Locking: The internal opp_table and opp structures are RCU protected.
  * Hence this function internally uses RCU updater strategy with mutex locks
@@ -1375,22 +1385,12 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_set_regulat
  * that this function is *NOT* called under RCU protection or in contexts where
  * mutex cannot be locked.
  */
-void dev_pm_opp_put_regulator(struct device *dev)
+void dev_pm_opp_put_regulator(struct opp_table *opp_table)
 {
-	struct opp_table *opp_table;
-
 	mutex_lock(&opp_table_lock);
 
-	/* Check for existing table for 'dev' first */
-	opp_table = _find_opp_table(dev);
-	if (IS_ERR(opp_table)) {
-		dev_err(dev, "Failed to find opp_table: %ld\n",
-			PTR_ERR(opp_table));
-		goto unlock;
-	}
-
 	if (IS_ERR(opp_table->regulator)) {
-		dev_err(dev, "%s: Doesn't have regulator set\n", __func__);
+		pr_err("%s: Doesn't have regulator set\n", __func__);
 		goto unlock;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/power/power.h linux-libre-4.9.52-gnu/drivers/base/power/power.h
--- linux-libre-4.9-gnu/drivers/base/power/power.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/power/power.h	2017-09-27 08:40:05.000000000 -0400
@@ -21,14 +21,22 @@ extern void pm_runtime_init(struct devic
 extern void pm_runtime_reinit(struct device *dev);
 extern void pm_runtime_remove(struct device *dev);
 
+#define WAKE_IRQ_DEDICATED_ALLOCATED	BIT(0)
+#define WAKE_IRQ_DEDICATED_MANAGED	BIT(1)
+#define WAKE_IRQ_DEDICATED_MASK		(WAKE_IRQ_DEDICATED_ALLOCATED | \
+					 WAKE_IRQ_DEDICATED_MANAGED)
+
 struct wake_irq {
 	struct device *dev;
+	unsigned int status;
 	int irq;
-	bool dedicated_irq:1;
 };
 
 extern void dev_pm_arm_wake_irq(struct wake_irq *wirq);
 extern void dev_pm_disarm_wake_irq(struct wake_irq *wirq);
+extern void dev_pm_enable_wake_irq_check(struct device *dev,
+					 bool can_change_status);
+extern void dev_pm_disable_wake_irq_check(struct device *dev);
 
 #ifdef CONFIG_PM_SLEEP
 
@@ -104,6 +112,15 @@ static inline void dev_pm_disarm_wake_ir
 {
 }
 
+static inline void dev_pm_enable_wake_irq_check(struct device *dev,
+						bool can_change_status)
+{
+}
+
+static inline void dev_pm_disable_wake_irq_check(struct device *dev)
+{
+}
+
 #endif
 
 #ifdef CONFIG_PM_SLEEP
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/power/runtime.c linux-libre-4.9.52-gnu/drivers/base/power/runtime.c
--- linux-libre-4.9-gnu/drivers/base/power/runtime.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/power/runtime.c	2017-09-27 08:40:05.000000000 -0400
@@ -515,7 +515,7 @@ static int rpm_suspend(struct device *de
 
 	callback = RPM_GET_CALLBACK(dev, runtime_suspend);
 
-	dev_pm_enable_wake_irq(dev);
+	dev_pm_enable_wake_irq_check(dev, true);
 	retval = rpm_callback(callback, dev);
 	if (retval)
 		goto fail;
@@ -554,7 +554,7 @@ static int rpm_suspend(struct device *de
 	return retval;
 
  fail:
-	dev_pm_disable_wake_irq(dev);
+	dev_pm_disable_wake_irq_check(dev);
 	__update_runtime_status(dev, RPM_ACTIVE);
 	dev->power.deferred_resume = false;
 	wake_up_all(&dev->power.wait_queue);
@@ -737,12 +737,12 @@ static int rpm_resume(struct device *dev
 
 	callback = RPM_GET_CALLBACK(dev, runtime_resume);
 
-	dev_pm_disable_wake_irq(dev);
+	dev_pm_disable_wake_irq_check(dev);
 	retval = rpm_callback(callback, dev);
 	if (retval) {
 		__update_runtime_status(dev, RPM_SUSPENDED);
 		pm_runtime_cancel_pending(dev);
-		dev_pm_enable_wake_irq(dev);
+		dev_pm_enable_wake_irq_check(dev, false);
 	} else {
  no_callback:
 		__update_runtime_status(dev, RPM_ACTIVE);
@@ -889,13 +889,13 @@ int __pm_runtime_idle(struct device *dev
 	unsigned long flags;
 	int retval;
 
-	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
-
 	if (rpmflags & RPM_GET_PUT) {
 		if (!atomic_dec_and_test(&dev->power.usage_count))
 			return 0;
 	}
 
+	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
+
 	spin_lock_irqsave(&dev->power.lock, flags);
 	retval = rpm_idle(dev, rpmflags);
 	spin_unlock_irqrestore(&dev->power.lock, flags);
@@ -921,13 +921,13 @@ int __pm_runtime_suspend(struct device *
 	unsigned long flags;
 	int retval;
 
-	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
-
 	if (rpmflags & RPM_GET_PUT) {
 		if (!atomic_dec_and_test(&dev->power.usage_count))
 			return 0;
 	}
 
+	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
+
 	spin_lock_irqsave(&dev->power.lock, flags);
 	retval = rpm_suspend(dev, rpmflags);
 	spin_unlock_irqrestore(&dev->power.lock, flags);
@@ -952,7 +952,8 @@ int __pm_runtime_resume(struct device *d
 	unsigned long flags;
 	int retval;
 
-	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
+	might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe &&
+			dev->power.runtime_status != RPM_ACTIVE);
 
 	if (rpmflags & RPM_GET_PUT)
 		atomic_inc(&dev->power.usage_count);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/power/sysfs.c linux-libre-4.9.52-gnu/drivers/base/power/sysfs.c
--- linux-libre-4.9-gnu/drivers/base/power/sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/power/sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -268,6 +268,8 @@ static ssize_t pm_qos_latency_tolerance_
 			value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
 		else if (!strcmp(buf, "any") || !strcmp(buf, "any\n"))
 			value = PM_QOS_LATENCY_ANY;
+		else
+			return -EINVAL;
 	}
 	ret = dev_pm_qos_update_user_latency_tolerance(dev, value);
 	return ret < 0 ? ret : n;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/power/wakeirq.c linux-libre-4.9.52-gnu/drivers/base/power/wakeirq.c
--- linux-libre-4.9-gnu/drivers/base/power/wakeirq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/power/wakeirq.c	2017-09-27 08:40:05.000000000 -0400
@@ -110,8 +110,10 @@ void dev_pm_clear_wake_irq(struct device
 	dev->power.wakeirq = NULL;
 	spin_unlock_irqrestore(&dev->power.lock, flags);
 
-	if (wirq->dedicated_irq)
+	if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED) {
 		free_irq(wirq->irq, wirq);
+		wirq->status &= ~WAKE_IRQ_DEDICATED_MASK;
+	}
 	kfree(wirq);
 }
 EXPORT_SYMBOL_GPL(dev_pm_clear_wake_irq);
@@ -179,7 +181,6 @@ int dev_pm_set_dedicated_wake_irq(struct
 
 	wirq->dev = dev;
 	wirq->irq = irq;
-	wirq->dedicated_irq = true;
 	irq_set_status_flags(irq, IRQ_NOAUTOEN);
 
 	/*
@@ -195,6 +196,8 @@ int dev_pm_set_dedicated_wake_irq(struct
 	if (err)
 		goto err_free_irq;
 
+	wirq->status = WAKE_IRQ_DEDICATED_ALLOCATED;
+
 	return err;
 
 err_free_irq:
@@ -210,9 +213,9 @@ EXPORT_SYMBOL_GPL(dev_pm_set_dedicated_w
  * dev_pm_enable_wake_irq - Enable device wake-up interrupt
  * @dev: Device
  *
- * Called from the bus code or the device driver for
- * runtime_suspend() to enable the wake-up interrupt while
- * the device is running.
+ * Optionally called from the bus code or the device driver for
+ * runtime_resume() to override the PM runtime core managed wake-up
+ * interrupt handling to enable the wake-up interrupt.
  *
  * Note that for runtime_suspend()) the wake-up interrupts
  * should be unconditionally enabled unlike for suspend()
@@ -222,7 +225,7 @@ void dev_pm_enable_wake_irq(struct devic
 {
 	struct wake_irq *wirq = dev->power.wakeirq;
 
-	if (wirq && wirq->dedicated_irq)
+	if (wirq && (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED))
 		enable_irq(wirq->irq);
 }
 EXPORT_SYMBOL_GPL(dev_pm_enable_wake_irq);
@@ -231,20 +234,73 @@ EXPORT_SYMBOL_GPL(dev_pm_enable_wake_irq
  * dev_pm_disable_wake_irq - Disable device wake-up interrupt
  * @dev: Device
  *
- * Called from the bus code or the device driver for
- * runtime_resume() to disable the wake-up interrupt while
- * the device is running.
+ * Optionally called from the bus code or the device driver for
+ * runtime_suspend() to override the PM runtime core managed wake-up
+ * interrupt handling to disable the wake-up interrupt.
  */
 void dev_pm_disable_wake_irq(struct device *dev)
 {
 	struct wake_irq *wirq = dev->power.wakeirq;
 
-	if (wirq && wirq->dedicated_irq)
+	if (wirq && (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED))
 		disable_irq_nosync(wirq->irq);
 }
 EXPORT_SYMBOL_GPL(dev_pm_disable_wake_irq);
 
 /**
+ * dev_pm_enable_wake_irq_check - Checks and enables wake-up interrupt
+ * @dev: Device
+ * @can_change_status: Can change wake-up interrupt status
+ *
+ * Enables wakeirq conditionally. We need to enable wake-up interrupt
+ * lazily on the first rpm_suspend(). This is needed as the consumer device
+ * starts in RPM_SUSPENDED state, and the the first pm_runtime_get() would
+ * otherwise try to disable already disabled wakeirq. The wake-up interrupt
+ * starts disabled with IRQ_NOAUTOEN set.
+ *
+ * Should be only called from rpm_suspend() and rpm_resume() path.
+ * Caller must hold &dev->power.lock to change wirq->status
+ */
+void dev_pm_enable_wake_irq_check(struct device *dev,
+				  bool can_change_status)
+{
+	struct wake_irq *wirq = dev->power.wakeirq;
+
+	if (!wirq || !((wirq->status & WAKE_IRQ_DEDICATED_MASK)))
+		return;
+
+	if (likely(wirq->status & WAKE_IRQ_DEDICATED_MANAGED)) {
+		goto enable;
+	} else if (can_change_status) {
+		wirq->status |= WAKE_IRQ_DEDICATED_MANAGED;
+		goto enable;
+	}
+
+	return;
+
+enable:
+	enable_irq(wirq->irq);
+}
+
+/**
+ * dev_pm_disable_wake_irq_check - Checks and disables wake-up interrupt
+ * @dev: Device
+ *
+ * Disables wake-up interrupt conditionally based on status.
+ * Should be only called from rpm_suspend() and rpm_resume() path.
+ */
+void dev_pm_disable_wake_irq_check(struct device *dev)
+{
+	struct wake_irq *wirq = dev->power.wakeirq;
+
+	if (!wirq || !((wirq->status & WAKE_IRQ_DEDICATED_MASK)))
+		return;
+
+	if (wirq->status & WAKE_IRQ_DEDICATED_MANAGED)
+		disable_irq_nosync(wirq->irq);
+}
+
+/**
  * dev_pm_arm_wake_irq - Arm device wake-up
  * @wirq: Device wake-up interrupt
  *
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/power/wakeup.c linux-libre-4.9.52-gnu/drivers/base/power/wakeup.c
--- linux-libre-4.9-gnu/drivers/base/power/wakeup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/power/wakeup.c	2017-09-27 08:40:05.000000000 -0400
@@ -60,6 +60,8 @@ static LIST_HEAD(wakeup_sources);
 
 static DECLARE_WAIT_QUEUE_HEAD(wakeup_count_wait_queue);
 
+DEFINE_STATIC_SRCU(wakeup_srcu);
+
 static struct wakeup_source deleted_ws = {
 	.name = "deleted",
 	.lock =  __SPIN_LOCK_UNLOCKED(deleted_ws.lock),
@@ -198,7 +200,7 @@ void wakeup_source_remove(struct wakeup_
 	spin_lock_irqsave(&events_lock, flags);
 	list_del_rcu(&ws->entry);
 	spin_unlock_irqrestore(&events_lock, flags);
-	synchronize_rcu();
+	synchronize_srcu(&wakeup_srcu);
 }
 EXPORT_SYMBOL_GPL(wakeup_source_remove);
 
@@ -332,12 +334,12 @@ void device_wakeup_detach_irq(struct dev
 void device_wakeup_arm_wake_irqs(void)
 {
 	struct wakeup_source *ws;
+	int srcuidx;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry)
 		dev_pm_arm_wake_irq(ws->wakeirq);
-
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 
 /**
@@ -348,12 +350,12 @@ void device_wakeup_arm_wake_irqs(void)
 void device_wakeup_disarm_wake_irqs(void)
 {
 	struct wakeup_source *ws;
+	int srcuidx;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry)
 		dev_pm_disarm_wake_irq(ws->wakeirq);
-
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 
 /**
@@ -805,10 +807,10 @@ EXPORT_SYMBOL_GPL(pm_wakeup_event);
 void pm_print_active_wakeup_sources(void)
 {
 	struct wakeup_source *ws;
-	int active = 0;
+	int srcuidx, active = 0;
 	struct wakeup_source *last_activity_ws = NULL;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
 		if (ws->active) {
 			pr_info("active wakeup source: %s\n", ws->name);
@@ -824,7 +826,7 @@ void pm_print_active_wakeup_sources(void
 	if (!active && last_activity_ws)
 		pr_info("last active wakeup source: %s\n",
 			last_activity_ws->name);
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 EXPORT_SYMBOL_GPL(pm_print_active_wakeup_sources);
 
@@ -951,8 +953,9 @@ void pm_wakep_autosleep_enabled(bool set
 {
 	struct wakeup_source *ws;
 	ktime_t now = ktime_get();
+	int srcuidx;
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
 		spin_lock_irq(&ws->lock);
 		if (ws->autosleep_enabled != set) {
@@ -966,7 +969,7 @@ void pm_wakep_autosleep_enabled(bool set
 		}
 		spin_unlock_irq(&ws->lock);
 	}
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 }
 #endif /* CONFIG_PM_AUTOSLEEP */
 
@@ -1027,15 +1030,16 @@ static int print_wakeup_source_stats(str
 static int wakeup_sources_stats_show(struct seq_file *m, void *unused)
 {
 	struct wakeup_source *ws;
+	int srcuidx;
 
 	seq_puts(m, "name\t\tactive_count\tevent_count\twakeup_count\t"
 		"expire_count\tactive_since\ttotal_time\tmax_time\t"
 		"last_change\tprevent_suspend_time\n");
 
-	rcu_read_lock();
+	srcuidx = srcu_read_lock(&wakeup_srcu);
 	list_for_each_entry_rcu(ws, &wakeup_sources, entry)
 		print_wakeup_source_stats(m, ws);
-	rcu_read_unlock();
+	srcu_read_unlock(&wakeup_srcu, srcuidx);
 
 	print_wakeup_source_stats(m, &deleted_ws);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/base/property.c linux-libre-4.9.52-gnu/drivers/base/property.c
--- linux-libre-4.9-gnu/drivers/base/property.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/base/property.c	2017-09-27 08:40:05.000000000 -0400
@@ -182,11 +182,12 @@ static int pset_prop_read_string(struct
 	return 0;
 }
 
-static inline struct fwnode_handle *dev_fwnode(struct device *dev)
+struct fwnode_handle *dev_fwnode(struct device *dev)
 {
 	return IS_ENABLED(CONFIG_OF) && dev->of_node ?
 		&dev->of_node->fwnode : dev->fwnode;
 }
+EXPORT_SYMBOL_GPL(dev_fwnode);
 
 /**
  * device_property_present - check if a property of a device is present
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bcma/bcma_private.h linux-libre-4.9.52-gnu/drivers/bcma/bcma_private.h
--- linux-libre-4.9-gnu/drivers/bcma/bcma_private.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bcma/bcma_private.h	2017-09-27 08:40:05.000000000 -0400
@@ -45,6 +45,9 @@ int bcma_sprom_get(struct bcma_bus *bus)
 void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc);
 void bcma_core_chipcommon_init(struct bcma_drv_cc *cc);
 void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable);
+#ifdef CONFIG_BCMA_DRIVER_MIPS
+void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
+#endif /* CONFIG_BCMA_DRIVER_MIPS */
 
 /* driver_chipcommon_b.c */
 int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bcma/driver_chipcommon.c linux-libre-4.9.52-gnu/drivers/bcma/driver_chipcommon.c
--- linux-libre-4.9-gnu/drivers/bcma/driver_chipcommon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bcma/driver_chipcommon.c	2017-09-27 08:40:05.000000000 -0400
@@ -15,8 +15,6 @@
 #include <linux/platform_device.h>
 #include <linux/bcma/bcma.h>
 
-static void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
-
 static inline u32 bcma_cc_write32_masked(struct bcma_drv_cc *cc, u16 offset,
 					 u32 mask, u32 value)
 {
@@ -186,9 +184,6 @@ void bcma_core_chipcommon_early_init(str
 	if (cc->capabilities & BCMA_CC_CAP_PMU)
 		bcma_pmu_early_init(cc);
 
-	if (IS_BUILTIN(CONFIG_BCM47XX) && bus->hosttype == BCMA_HOSTTYPE_SOC)
-		bcma_chipco_serial_init(cc);
-
 	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
 		bcma_core_chipcommon_flash_detect(cc);
 
@@ -378,9 +373,9 @@ u32 bcma_chipco_gpio_pulldown(struct bcm
 	return res;
 }
 
-static void bcma_chipco_serial_init(struct bcma_drv_cc *cc)
+#ifdef CONFIG_BCMA_DRIVER_MIPS
+void bcma_chipco_serial_init(struct bcma_drv_cc *cc)
 {
-#if IS_BUILTIN(CONFIG_BCM47XX)
 	unsigned int irq;
 	u32 baud_base;
 	u32 i;
@@ -422,5 +417,5 @@ static void bcma_chipco_serial_init(stru
 		ports[i].baud_base = baud_base;
 		ports[i].reg_shift = 0;
 	}
-#endif /* CONFIG_BCM47XX */
 }
+#endif /* CONFIG_BCMA_DRIVER_MIPS */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bcma/driver_mips.c linux-libre-4.9.52-gnu/drivers/bcma/driver_mips.c
--- linux-libre-4.9-gnu/drivers/bcma/driver_mips.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bcma/driver_mips.c	2017-09-27 08:40:05.000000000 -0400
@@ -278,9 +278,12 @@ static void bcma_core_mips_nvram_init(st
 
 void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
 {
+	struct bcma_bus *bus = mcore->core->bus;
+
 	if (mcore->early_setup_done)
 		return;
 
+	bcma_chipco_serial_init(&bus->drv_cc);
 	bcma_core_mips_nvram_init(mcore);
 
 	mcore->early_setup_done = true;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bcma/main.c linux-libre-4.9.52-gnu/drivers/bcma/main.c
--- linux-libre-4.9-gnu/drivers/bcma/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bcma/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -633,8 +633,11 @@ static int bcma_device_probe(struct devi
 					       drv);
 	int err = 0;
 
+	get_device(dev);
 	if (adrv->probe)
 		err = adrv->probe(core);
+	if (err)
+		put_device(dev);
 
 	return err;
 }
@@ -647,6 +650,7 @@ static int bcma_device_remove(struct dev
 
 	if (adrv->remove)
 		adrv->remove(core);
+	put_device(dev);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/loop.c linux-libre-4.9.52-gnu/drivers/block/loop.c
--- linux-libre-4.9-gnu/drivers/block/loop.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/loop.c	2017-09-27 08:40:05.000000000 -0400
@@ -1097,9 +1097,12 @@ loop_set_status(struct loop_device *lo,
 	if ((unsigned int) info->lo_encrypt_key_size > LO_KEY_SIZE)
 		return -EINVAL;
 
+	/* I/O need to be drained during transfer transition */
+	blk_mq_freeze_queue(lo->lo_queue);
+
 	err = loop_release_xfer(lo);
 	if (err)
-		return err;
+		goto exit;
 
 	if (info->lo_encrypt_type) {
 		unsigned int type = info->lo_encrypt_type;
@@ -1114,12 +1117,14 @@ loop_set_status(struct loop_device *lo,
 
 	err = loop_init_xfer(lo, xfer, info);
 	if (err)
-		return err;
+		goto exit;
 
 	if (lo->lo_offset != info->lo_offset ||
 	    lo->lo_sizelimit != info->lo_sizelimit)
-		if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit))
-			return -EFBIG;
+		if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit)) {
+			err = -EFBIG;
+			goto exit;
+		}
 
 	loop_config_discard(lo);
 
@@ -1137,13 +1142,6 @@ loop_set_status(struct loop_device *lo,
 	     (info->lo_flags & LO_FLAGS_AUTOCLEAR))
 		lo->lo_flags ^= LO_FLAGS_AUTOCLEAR;
 
-	if ((info->lo_flags & LO_FLAGS_PARTSCAN) &&
-	     !(lo->lo_flags & LO_FLAGS_PARTSCAN)) {
-		lo->lo_flags |= LO_FLAGS_PARTSCAN;
-		lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
-		loop_reread_partitions(lo, lo->lo_device);
-	}
-
 	lo->lo_encrypt_key_size = info->lo_encrypt_key_size;
 	lo->lo_init[0] = info->lo_init[0];
 	lo->lo_init[1] = info->lo_init[1];
@@ -1156,7 +1154,17 @@ loop_set_status(struct loop_device *lo,
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
 
-	return 0;
+ exit:
+	blk_mq_unfreeze_queue(lo->lo_queue);
+
+	if (!err && (info->lo_flags & LO_FLAGS_PARTSCAN) &&
+	     !(lo->lo_flags & LO_FLAGS_PARTSCAN)) {
+		lo->lo_flags |= LO_FLAGS_PARTSCAN;
+		lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
+		loop_reread_partitions(lo, lo->lo_device);
+	}
+
+	return err;
 }
 
 static int
@@ -1646,7 +1654,7 @@ static int loop_queue_rq(struct blk_mq_h
 	blk_mq_start_request(bd->rq);
 
 	if (lo->lo_state != Lo_bound)
-		return -EIO;
+		return BLK_MQ_RQ_QUEUE_ERROR;
 
 	switch (req_op(cmd->rq)) {
 	case REQ_OP_FLUSH:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/nbd.c linux-libre-4.9.52-gnu/drivers/block/nbd.c
--- linux-libre-4.9-gnu/drivers/block/nbd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/nbd.c	2017-09-27 08:40:05.000000000 -0400
@@ -54,7 +54,7 @@ struct nbd_device {
 
 	struct mutex tx_lock;
 	struct gendisk *disk;
-	int blksize;
+	loff_t blksize;
 	loff_t bytesize;
 
 	/* protects initialization and shutdown of the socket */
@@ -126,7 +126,7 @@ static void nbd_size_update(struct nbd_d
 }
 
 static int nbd_size_set(struct nbd_device *nbd, struct block_device *bdev,
-			int blocksize, int nr_blocks)
+			loff_t blocksize, loff_t nr_blocks)
 {
 	int ret;
 
@@ -135,7 +135,7 @@ static int nbd_size_set(struct nbd_devic
 		return ret;
 
 	nbd->blksize = blocksize;
-	nbd->bytesize = (loff_t)blocksize * (loff_t)nr_blocks;
+	nbd->bytesize = blocksize * nr_blocks;
 
 	nbd_size_update(nbd, bdev);
 
@@ -648,7 +648,7 @@ static int __nbd_ioctl(struct block_devi
 
 	case NBD_SET_SIZE:
 		return nbd_size_set(nbd, bdev, nbd->blksize,
-				    arg / nbd->blksize);
+					div_s64(arg, nbd->blksize));
 
 	case NBD_SET_SIZE_BLOCKS:
 		return nbd_size_set(nbd, bdev, nbd->blksize, arg);
@@ -817,7 +817,7 @@ static int nbd_dev_dbg_init(struct nbd_d
 	debugfs_create_file("tasks", 0444, dir, nbd, &nbd_dbg_tasks_ops);
 	debugfs_create_u64("size_bytes", 0444, dir, &nbd->bytesize);
 	debugfs_create_u32("timeout", 0444, dir, &nbd->tag_set.timeout);
-	debugfs_create_u32("blocksize", 0444, dir, &nbd->blksize);
+	debugfs_create_u64("blocksize", 0444, dir, &nbd->blksize);
 	debugfs_create_file("flags", 0444, dir, nbd, &nbd_dbg_flags_ops);
 
 	return 0;
@@ -929,6 +929,7 @@ static int __init nbd_init(void)
 		return -ENOMEM;
 
 	for (i = 0; i < nbds_max; i++) {
+		struct request_queue *q;
 		struct gendisk *disk = alloc_disk(1 << part_shift);
 		if (!disk)
 			goto out;
@@ -954,12 +955,13 @@ static int __init nbd_init(void)
 		 * every gendisk to have its very own request_queue struct.
 		 * These structs are big so we dynamically allocate them.
 		 */
-		disk->queue = blk_mq_init_queue(&nbd_dev[i].tag_set);
-		if (!disk->queue) {
+		q = blk_mq_init_queue(&nbd_dev[i].tag_set);
+		if (IS_ERR(q)) {
 			blk_mq_free_tag_set(&nbd_dev[i].tag_set);
 			put_disk(disk);
 			goto out;
 		}
+		disk->queue = q;
 
 		/*
 		 * Tell the block layer that we are not a rotational device
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/skd_main.c linux-libre-4.9.52-gnu/drivers/block/skd_main.c
--- linux-libre-4.9-gnu/drivers/block/skd_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/skd_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -2163,6 +2163,9 @@ static void skd_send_fitmsg(struct skd_d
 		 */
 		qcmd |= FIT_QCMD_MSGSIZE_64;
 
+	/* Make sure skd_msg_buf is written before the doorbell is triggered. */
+	smp_wmb();
+
 	SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND);
 
 }
@@ -2209,6 +2212,9 @@ static void skd_send_special_fitmsg(stru
 	qcmd = skspcl->mb_dma_address;
 	qcmd |= FIT_QCMD_QID_NORMAL + FIT_QCMD_MSGSIZE_128;
 
+	/* Make sure skd_msg_buf is written before the doorbell is triggered. */
+	smp_wmb();
+
 	SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND);
 }
 
@@ -4622,15 +4628,16 @@ static void skd_free_disk(struct skd_dev
 {
 	struct gendisk *disk = skdev->disk;
 
-	if (disk != NULL) {
-		struct request_queue *q = disk->queue;
+	if (disk && (disk->flags & GENHD_FL_UP))
+		del_gendisk(disk);
 
-		if (disk->flags & GENHD_FL_UP)
-			del_gendisk(disk);
-		if (q)
-			blk_cleanup_queue(q);
-		put_disk(disk);
+	if (skdev->queue) {
+		blk_cleanup_queue(skdev->queue);
+		skdev->queue = NULL;
+		disk->queue = NULL;
 	}
+
+	put_disk(disk);
 	skdev->disk = NULL;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/virtio_blk.c linux-libre-4.9.52-gnu/drivers/block/virtio_blk.c
--- linux-libre-4.9-gnu/drivers/block/virtio_blk.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/virtio_blk.c	2017-09-27 08:40:05.000000000 -0400
@@ -56,6 +56,7 @@ struct virtblk_req {
 	struct virtio_blk_outhdr out_hdr;
 	struct virtio_scsi_inhdr in_hdr;
 	u8 status;
+	u8 sense[SCSI_SENSE_BUFFERSIZE];
 	struct scatterlist sg[];
 };
 
@@ -102,7 +103,8 @@ static int __virtblk_add_req(struct virt
 	}
 
 	if (type == cpu_to_virtio32(vq->vdev, VIRTIO_BLK_T_SCSI_CMD)) {
-		sg_init_one(&sense, vbr->req->sense, SCSI_SENSE_BUFFERSIZE);
+		memcpy(vbr->sense, vbr->req->sense, SCSI_SENSE_BUFFERSIZE);
+		sg_init_one(&sense, vbr->sense, SCSI_SENSE_BUFFERSIZE);
 		sgs[num_out + num_in++] = &sense;
 		sg_init_one(&inhdr, &vbr->in_hdr, sizeof(vbr->in_hdr));
 		sgs[num_out + num_in++] = &inhdr;
@@ -628,11 +630,12 @@ static int virtblk_probe(struct virtio_d
 	if (err)
 		goto out_put_disk;
 
-	q = vblk->disk->queue = blk_mq_init_queue(&vblk->tag_set);
+	q = blk_mq_init_queue(&vblk->tag_set);
 	if (IS_ERR(q)) {
 		err = -ENOMEM;
 		goto out_free_tags;
 	}
+	vblk->disk->queue = q;
 
 	q->queuedata = vblk;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/xen-blkback/blkback.c linux-libre-4.9.52-gnu/drivers/block/xen-blkback/blkback.c
--- linux-libre-4.9-gnu/drivers/block/xen-blkback/blkback.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/xen-blkback/blkback.c	2017-09-27 08:40:05.000000000 -0400
@@ -609,8 +609,6 @@ int xen_blkif_schedule(void *arg)
 	unsigned long timeout;
 	int ret;
 
-	xen_blkif_get(blkif);
-
 	set_freezable();
 	while (!kthread_should_stop()) {
 		if (try_to_freeze())
@@ -665,7 +663,6 @@ purge_gnt_list:
 		print_stats(ring);
 
 	ring->xenblkd = NULL;
-	xen_blkif_put(blkif);
 
 	return 0;
 }
@@ -1436,34 +1433,35 @@ static int dispatch_rw_block_io(struct x
 static void make_response(struct xen_blkif_ring *ring, u64 id,
 			  unsigned short op, int st)
 {
-	struct blkif_response  resp;
+	struct blkif_response *resp;
 	unsigned long     flags;
 	union blkif_back_rings *blk_rings;
 	int notify;
 
-	resp.id        = id;
-	resp.operation = op;
-	resp.status    = st;
-
 	spin_lock_irqsave(&ring->blk_ring_lock, flags);
 	blk_rings = &ring->blk_rings;
 	/* Place on the response ring for the relevant domain. */
 	switch (ring->blkif->blk_protocol) {
 	case BLKIF_PROTOCOL_NATIVE:
-		memcpy(RING_GET_RESPONSE(&blk_rings->native, blk_rings->native.rsp_prod_pvt),
-		       &resp, sizeof(resp));
+		resp = RING_GET_RESPONSE(&blk_rings->native,
+					 blk_rings->native.rsp_prod_pvt);
 		break;
 	case BLKIF_PROTOCOL_X86_32:
-		memcpy(RING_GET_RESPONSE(&blk_rings->x86_32, blk_rings->x86_32.rsp_prod_pvt),
-		       &resp, sizeof(resp));
+		resp = RING_GET_RESPONSE(&blk_rings->x86_32,
+					 blk_rings->x86_32.rsp_prod_pvt);
 		break;
 	case BLKIF_PROTOCOL_X86_64:
-		memcpy(RING_GET_RESPONSE(&blk_rings->x86_64, blk_rings->x86_64.rsp_prod_pvt),
-		       &resp, sizeof(resp));
+		resp = RING_GET_RESPONSE(&blk_rings->x86_64,
+					 blk_rings->x86_64.rsp_prod_pvt);
 		break;
 	default:
 		BUG();
 	}
+
+	resp->id        = id;
+	resp->operation = op;
+	resp->status    = st;
+
 	blk_rings->common.rsp_prod_pvt++;
 	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&blk_rings->common, notify);
 	spin_unlock_irqrestore(&ring->blk_ring_lock, flags);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/xen-blkback/common.h linux-libre-4.9.52-gnu/drivers/block/xen-blkback/common.h
--- linux-libre-4.9-gnu/drivers/block/xen-blkback/common.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/xen-blkback/common.h	2017-09-27 08:40:05.000000000 -0400
@@ -75,9 +75,8 @@ extern unsigned int xenblk_max_queues;
 struct blkif_common_request {
 	char dummy;
 };
-struct blkif_common_response {
-	char dummy;
-};
+
+/* i386 protocol version */
 
 struct blkif_x86_32_request_rw {
 	uint8_t        nr_segments;  /* number of segments                   */
@@ -129,14 +128,6 @@ struct blkif_x86_32_request {
 	} u;
 } __attribute__((__packed__));
 
-/* i386 protocol version */
-#pragma pack(push, 4)
-struct blkif_x86_32_response {
-	uint64_t        id;              /* copied from request */
-	uint8_t         operation;       /* copied from request */
-	int16_t         status;          /* BLKIF_RSP_???       */
-};
-#pragma pack(pop)
 /* x86_64 protocol version */
 
 struct blkif_x86_64_request_rw {
@@ -193,18 +184,12 @@ struct blkif_x86_64_request {
 	} u;
 } __attribute__((__packed__));
 
-struct blkif_x86_64_response {
-	uint64_t       __attribute__((__aligned__(8))) id;
-	uint8_t         operation;       /* copied from request */
-	int16_t         status;          /* BLKIF_RSP_???       */
-};
-
 DEFINE_RING_TYPES(blkif_common, struct blkif_common_request,
-		  struct blkif_common_response);
+		  struct blkif_response);
 DEFINE_RING_TYPES(blkif_x86_32, struct blkif_x86_32_request,
-		  struct blkif_x86_32_response);
+		  struct blkif_response __packed);
 DEFINE_RING_TYPES(blkif_x86_64, struct blkif_x86_64_request,
-		  struct blkif_x86_64_response);
+		  struct blkif_response);
 
 union blkif_back_rings {
 	struct blkif_back_ring        native;
@@ -281,6 +266,7 @@ struct xen_blkif_ring {
 
 	wait_queue_head_t	wq;
 	atomic_t		inflight;
+	bool			active;
 	/* One thread per blkif ring. */
 	struct task_struct	*xenblkd;
 	unsigned int		waiting_reqs;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/xen-blkback/xenbus.c linux-libre-4.9.52-gnu/drivers/block/xen-blkback/xenbus.c
--- linux-libre-4.9-gnu/drivers/block/xen-blkback/xenbus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/xen-blkback/xenbus.c	2017-09-27 08:40:05.000000000 -0400
@@ -159,7 +159,7 @@ static int xen_blkif_alloc_rings(struct
 		init_waitqueue_head(&ring->shutdown_wq);
 		ring->blkif = blkif;
 		ring->st_print = jiffies;
-		xen_blkif_get(blkif);
+		ring->active = true;
 	}
 
 	return 0;
@@ -249,10 +249,12 @@ static int xen_blkif_disconnect(struct x
 		struct xen_blkif_ring *ring = &blkif->rings[r];
 		unsigned int i = 0;
 
+		if (!ring->active)
+			continue;
+
 		if (ring->xenblkd) {
 			kthread_stop(ring->xenblkd);
 			wake_up(&ring->shutdown_wq);
-			ring->xenblkd = NULL;
 		}
 
 		/* The above kthread_stop() guarantees that at this point we
@@ -296,7 +298,7 @@ static int xen_blkif_disconnect(struct x
 		BUG_ON(ring->free_pages_num != 0);
 		BUG_ON(ring->persistent_gnt_c != 0);
 		WARN_ON(i != (XEN_BLKIF_REQS_PER_PAGE * blkif->nr_ring_pages));
-		xen_blkif_put(blkif);
+		ring->active = false;
 	}
 	blkif->nr_ring_pages = 0;
 	/*
@@ -313,8 +315,10 @@ static int xen_blkif_disconnect(struct x
 static void xen_blkif_free(struct xen_blkif *blkif)
 {
 
-	xen_blkif_disconnect(blkif);
+	WARN_ON(xen_blkif_disconnect(blkif));
 	xen_vbd_free(&blkif->vbd);
+	kfree(blkif->be->mode);
+	kfree(blkif->be);
 
 	/* Make sure everything is drained before shutting down */
 	kmem_cache_free(xen_blkif_cachep, blkif);
@@ -509,8 +513,6 @@ static int xen_blkbk_remove(struct xenbu
 
 	/* Put the reference we set in xen_blkif_alloc(). */
 	xen_blkif_put(be->blkif);
-	kfree(be->mode);
-	kfree(be);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/xen-blkfront.c linux-libre-4.9.52-gnu/drivers/block/xen-blkfront.c
--- linux-libre-4.9-gnu/drivers/block/xen-blkfront.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/xen-blkfront.c	2017-09-27 08:40:05.000000000 -0400
@@ -2112,9 +2112,9 @@ static int blkfront_resume(struct xenbus
 			/*
 			 * Get the bios in the request so we can re-queue them.
 			 */
-			if (req_op(shadow[i].request) == REQ_OP_FLUSH ||
-			    req_op(shadow[i].request) == REQ_OP_DISCARD ||
-			    req_op(shadow[i].request) == REQ_OP_SECURE_ERASE ||
+			if (req_op(shadow[j].request) == REQ_OP_FLUSH ||
+			    req_op(shadow[j].request) == REQ_OP_DISCARD ||
+			    req_op(shadow[j].request) == REQ_OP_SECURE_ERASE ||
 			    shadow[j].request->cmd_flags & REQ_FUA) {
 				/*
 				 * Flush operations don't contain bios, so
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/block/zram/zram_drv.c linux-libre-4.9.52-gnu/drivers/block/zram/zram_drv.c
--- linux-libre-4.9-gnu/drivers/block/zram/zram_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/block/zram/zram_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -25,6 +25,7 @@
 #include <linux/genhd.h>
 #include <linux/highmem.h>
 #include <linux/slab.h>
+#include <linux/backing-dev.h>
 #include <linux/string.h>
 #include <linux/vmalloc.h>
 #include <linux/err.h>
@@ -111,6 +112,14 @@ static inline bool is_partial_io(struct
 	return bvec->bv_len != PAGE_SIZE;
 }
 
+static void zram_revalidate_disk(struct zram *zram)
+{
+	revalidate_disk(zram->disk);
+	/* revalidate_disk reset the BDI_CAP_STABLE_WRITES so set again */
+	zram->disk->queue->backing_dev_info.capabilities |=
+		BDI_CAP_STABLE_WRITES;
+}
+
 /*
  * Check if request is within bounds and aligned on zram logical blocks.
  */
@@ -573,13 +582,13 @@ static int zram_decompress_page(struct z
 
 	if (!handle || zram_test_flag(meta, index, ZRAM_ZERO)) {
 		bit_spin_unlock(ZRAM_ACCESS, &meta->table[index].value);
-		clear_page(mem);
+		memset(mem, 0, PAGE_SIZE);
 		return 0;
 	}
 
 	cmem = zs_map_object(meta->mem_pool, handle, ZS_MM_RO);
 	if (size == PAGE_SIZE) {
-		copy_page(mem, cmem);
+		memcpy(mem, cmem, PAGE_SIZE);
 	} else {
 		struct zcomp_strm *zstrm = zcomp_stream_get(zram->comp);
 
@@ -771,7 +780,7 @@ compress_again:
 
 	if ((clen == PAGE_SIZE) && !is_partial_io(bvec)) {
 		src = kmap_atomic(page);
-		copy_page(cmem, src);
+		memcpy(cmem, src, PAGE_SIZE);
 		kunmap_atomic(src);
 	} else {
 		memcpy(cmem, src, clen);
@@ -1094,15 +1103,9 @@ static ssize_t disksize_store(struct dev
 	zram->comp = comp;
 	zram->disksize = disksize;
 	set_capacity(zram->disk, zram->disksize >> SECTOR_SHIFT);
+	zram_revalidate_disk(zram);
 	up_write(&zram->init_lock);
 
-	/*
-	 * Revalidate disk out of the init_lock to avoid lockdep splat.
-	 * It's okay because disk's capacity is protected by init_lock
-	 * so that revalidate_disk always sees up-to-date capacity.
-	 */
-	revalidate_disk(zram->disk);
-
 	return len;
 
 out_destroy_comp:
@@ -1148,7 +1151,7 @@ static ssize_t reset_store(struct device
 	/* Make sure all the pending I/O are finished */
 	fsync_bdev(bdev);
 	zram_reset_device(zram);
-	revalidate_disk(zram->disk);
+	zram_revalidate_disk(zram);
 	bdput(bdev);
 
 	mutex_lock(&bdev->bd_mutex);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bluetooth/ath3k.c linux-libre-4.9.52-gnu/drivers/bluetooth/ath3k.c
--- linux-libre-4.9-gnu/drivers/bluetooth/ath3k.c	2016-12-11 17:56:44.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bluetooth/ath3k.c	2017-09-27 15:08:54.000000000 -0400
@@ -94,6 +94,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x04CA, 0x300f) },
 	{ USB_DEVICE(0x04CA, 0x3010) },
 	{ USB_DEVICE(0x04CA, 0x3014) },
+	{ USB_DEVICE(0x04CA, 0x3018) },
 	{ USB_DEVICE(0x0930, 0x0219) },
 	{ USB_DEVICE(0x0930, 0x021c) },
 	{ USB_DEVICE(0x0930, 0x0220) },
@@ -162,6 +163,7 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bluetooth/btusb.c linux-libre-4.9.52-gnu/drivers/bluetooth/btusb.c
--- linux-libre-4.9-gnu/drivers/bluetooth/btusb.c	2016-12-11 17:57:03.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bluetooth/btusb.c	2017-09-27 15:09:34.000000000 -0400
@@ -209,6 +209,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
@@ -341,6 +342,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
+	{ USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 
 	/* Additional Realtek 8821AE Bluetooth devices */
 	{ USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bluetooth/hci_bcm.c linux-libre-4.9.52-gnu/drivers/bluetooth/hci_bcm.c
--- linux-libre-4.9-gnu/drivers/bluetooth/hci_bcm.c	2016-12-11 17:56:52.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bluetooth/hci_bcm.c	2017-09-27 15:09:10.000000000 -0400
@@ -287,6 +287,9 @@ static int bcm_open(struct hci_uart *hu)
 
 	hu->priv = bcm;
 
+	if (!hu->tty->dev)
+		goto out;
+
 	mutex_lock(&bcm_device_lock);
 	list_for_each(p, &bcm_device_list) {
 		struct bcm_device *dev = list_entry(p, struct bcm_device, list);
@@ -307,7 +310,7 @@ static int bcm_open(struct hci_uart *hu)
 	}
 
 	mutex_unlock(&bcm_device_lock);
-
+out:
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bluetooth/hci_intel.c linux-libre-4.9.52-gnu/drivers/bluetooth/hci_intel.c
--- linux-libre-4.9-gnu/drivers/bluetooth/hci_intel.c	2016-12-11 17:57:09.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bluetooth/hci_intel.c	2017-09-27 15:09:44.000000000 -0400
@@ -307,6 +307,9 @@ static int intel_set_power(struct hci_ua
 	struct list_head *p;
 	int err = -ENODEV;
 
+	if (!hu->tty->dev)
+		return err;
+
 	mutex_lock(&intel_device_list_lock);
 
 	list_for_each(p, &intel_device_list) {
@@ -379,6 +382,9 @@ static void intel_busy_work(struct work_
 	struct intel_data *intel = container_of(work, struct intel_data,
 						busy_work);
 
+	if (!intel->hu->tty->dev)
+		return;
+
 	/* Link is busy, delay the suspend */
 	mutex_lock(&intel_device_list_lock);
 	list_for_each(p, &intel_device_list) {
@@ -889,6 +895,8 @@ done:
 	list_for_each(p, &intel_device_list) {
 		struct intel_device *dev = list_entry(p, struct intel_device,
 						      list);
+		if (!hu->tty->dev)
+			break;
 		if (hu->tty->dev->parent == dev->pdev->dev.parent) {
 			if (device_may_wakeup(&dev->pdev->dev)) {
 				set_bit(STATE_LPM_ENABLED, &intel->flags);
@@ -1056,6 +1064,9 @@ static int intel_enqueue(struct hci_uart
 
 	BT_DBG("hu %p skb %p", hu, skb);
 
+	if (!hu->tty->dev)
+		goto out_enqueue;
+
 	/* Be sure our controller is resumed and potential LPM transaction
 	 * completed before enqueuing any packet.
 	 */
@@ -1072,7 +1083,7 @@ static int intel_enqueue(struct hci_uart
 		}
 	}
 	mutex_unlock(&intel_device_list_lock);
-
+out_enqueue:
 	skb_queue_tail(&intel->txq, skb);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bus/arm-ccn.c linux-libre-4.9.52-gnu/drivers/bus/arm-ccn.c
--- linux-libre-4.9-gnu/drivers/bus/arm-ccn.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bus/arm-ccn.c	2017-09-27 08:40:05.000000000 -0400
@@ -1570,7 +1570,10 @@ static int __init arm_ccn_init(void)
 	for (i = 0; i < ARRAY_SIZE(arm_ccn_pmu_events); i++)
 		arm_ccn_pmu_events_attrs[i] = &arm_ccn_pmu_events[i].attr.attr;
 
-	return platform_driver_register(&arm_ccn_driver);
+	ret = platform_driver_register(&arm_ccn_driver);
+	if (ret)
+		cpuhp_remove_multi_state(CPUHP_AP_PERF_ARM_CCN_ONLINE);
+	return ret;
 }
 
 static void __exit arm_ccn_exit(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/bus/vexpress-config.c linux-libre-4.9.52-gnu/drivers/bus/vexpress-config.c
--- linux-libre-4.9-gnu/drivers/bus/vexpress-config.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/bus/vexpress-config.c	2017-09-27 08:40:05.000000000 -0400
@@ -171,6 +171,7 @@ static int vexpress_config_populate(stru
 {
 	struct device_node *bridge;
 	struct device *parent;
+	int ret;
 
 	bridge = of_parse_phandle(node, "arm,vexpress,config-bridge", 0);
 	if (!bridge)
@@ -182,7 +183,11 @@ static int vexpress_config_populate(stru
 	if (WARN_ON(!parent))
 		return -ENODEV;
 
-	return of_platform_populate(node, NULL, NULL, parent);
+	ret = of_platform_populate(node, NULL, NULL, parent);
+
+	put_device(parent);
+
+	return ret;
 }
 
 static int __init vexpress_config_init(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/hw_random/amd-rng.c linux-libre-4.9.52-gnu/drivers/char/hw_random/amd-rng.c
--- linux-libre-4.9-gnu/drivers/char/hw_random/amd-rng.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/hw_random/amd-rng.c	2017-09-27 08:40:05.000000000 -0400
@@ -55,6 +55,7 @@ MODULE_DEVICE_TABLE(pci, pci_tbl);
 struct amd768_priv {
 	void __iomem *iobase;
 	struct pci_dev *pcidev;
+	u32 pmbase;
 };
 
 static int amd_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
@@ -148,33 +149,58 @@ found:
 	if (pmbase == 0)
 		return -EIO;
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
-	if (!devm_request_region(&pdev->dev, pmbase + PMBASE_OFFSET,
-				PMBASE_SIZE, DRV_NAME)) {
+	if (!request_region(pmbase + PMBASE_OFFSET, PMBASE_SIZE, DRV_NAME)) {
 		dev_err(&pdev->dev, DRV_NAME " region 0x%x already in use!\n",
 			pmbase + 0xF0);
-		return -EBUSY;
+		err = -EBUSY;
+		goto out;
 	}
 
-	priv->iobase = devm_ioport_map(&pdev->dev, pmbase + PMBASE_OFFSET,
-			PMBASE_SIZE);
+	priv->iobase = ioport_map(pmbase + PMBASE_OFFSET, PMBASE_SIZE);
 	if (!priv->iobase) {
 		pr_err(DRV_NAME "Cannot map ioport\n");
-		return -ENOMEM;
+		err = -EINVAL;
+		goto err_iomap;
 	}
 
 	amd_rng.priv = (unsigned long)priv;
+	priv->pmbase = pmbase;
 	priv->pcidev = pdev;
 
 	pr_info(DRV_NAME " detected\n");
-	return devm_hwrng_register(&pdev->dev, &amd_rng);
+	err = hwrng_register(&amd_rng);
+	if (err) {
+		pr_err(DRV_NAME " registering failed (%d)\n", err);
+		goto err_hwrng;
+	}
+	return 0;
+
+err_hwrng:
+	ioport_unmap(priv->iobase);
+err_iomap:
+	release_region(pmbase + PMBASE_OFFSET, PMBASE_SIZE);
+out:
+	kfree(priv);
+	return err;
 }
 
 static void __exit mod_exit(void)
 {
+	struct amd768_priv *priv;
+
+	priv = (struct amd768_priv *)amd_rng.priv;
+
+	hwrng_unregister(&amd_rng);
+
+	ioport_unmap(priv->iobase);
+
+	release_region(priv->pmbase + PMBASE_OFFSET, PMBASE_SIZE);
+
+	kfree(priv);
 }
 
 module_init(mod_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/hw_random/geode-rng.c linux-libre-4.9.52-gnu/drivers/char/hw_random/geode-rng.c
--- linux-libre-4.9-gnu/drivers/char/hw_random/geode-rng.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/hw_random/geode-rng.c	2017-09-27 08:40:05.000000000 -0400
@@ -31,6 +31,9 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 
+
+#define PFX	KBUILD_MODNAME ": "
+
 #define GEODE_RNG_DATA_REG   0x50
 #define GEODE_RNG_STATUS_REG 0x54
 
@@ -82,6 +85,7 @@ static struct hwrng geode_rng = {
 
 static int __init mod_init(void)
 {
+	int err = -ENODEV;
 	struct pci_dev *pdev = NULL;
 	const struct pci_device_id *ent;
 	void __iomem *mem;
@@ -89,27 +93,43 @@ static int __init mod_init(void)
 
 	for_each_pci_dev(pdev) {
 		ent = pci_match_id(pci_tbl, pdev);
-		if (ent) {
-			rng_base = pci_resource_start(pdev, 0);
-			if (rng_base == 0)
-				return -ENODEV;
+		if (ent)
+			goto found;
+	}
+	/* Device not found. */
+	goto out;
 
-			mem = devm_ioremap(&pdev->dev, rng_base, 0x58);
-			if (!mem)
-				return -ENOMEM;
-			geode_rng.priv = (unsigned long)mem;
+found:
+	rng_base = pci_resource_start(pdev, 0);
+	if (rng_base == 0)
+		goto out;
+	err = -ENOMEM;
+	mem = ioremap(rng_base, 0x58);
+	if (!mem)
+		goto out;
+	geode_rng.priv = (unsigned long)mem;
 
-			pr_info("AMD Geode RNG detected\n");
-			return devm_hwrng_register(&pdev->dev, &geode_rng);
-		}
+	pr_info("AMD Geode RNG detected\n");
+	err = hwrng_register(&geode_rng);
+	if (err) {
+		pr_err(PFX "RNG registering failed (%d)\n",
+		       err);
+		goto err_unmap;
 	}
+out:
+	return err;
 
-	/* Device not found. */
-	return -ENODEV;
+err_unmap:
+	iounmap(mem);
+	goto out;
 }
 
 static void __exit mod_exit(void)
 {
+	void __iomem *mem = (void __iomem *)geode_rng.priv;
+
+	hwrng_unregister(&geode_rng);
+	iounmap(mem);
 }
 
 module_init(mod_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/ipmi/ipmi_msghandler.c linux-libre-4.9.52-gnu/drivers/char/ipmi/ipmi_msghandler.c
--- linux-libre-4.9-gnu/drivers/char/ipmi/ipmi_msghandler.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/ipmi/ipmi_msghandler.c	2017-09-27 08:40:05.000000000 -0400
@@ -3877,6 +3877,9 @@ static void smi_recv_tasklet(unsigned lo
 	 * because the lower layer is allowed to hold locks while calling
 	 * message delivery.
 	 */
+
+	rcu_read_lock();
+
 	if (!run_to_completion)
 		spin_lock_irqsave(&intf->xmit_msgs_lock, flags);
 	if (intf->curr_msg == NULL && !intf->in_shutdown) {
@@ -3899,6 +3902,8 @@ static void smi_recv_tasklet(unsigned lo
 	if (newmsg)
 		intf->handlers->sender(intf->send_info, newmsg);
 
+	rcu_read_unlock();
+
 	handle_new_recv_msgs(intf);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/ipmi/ipmi_ssif.c linux-libre-4.9.52-gnu/drivers/char/ipmi/ipmi_ssif.c
--- linux-libre-4.9-gnu/drivers/char/ipmi/ipmi_ssif.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/ipmi/ipmi_ssif.c	2017-09-27 08:40:05.000000000 -0400
@@ -762,6 +762,11 @@ static void msg_done_handler(struct ssif
 			       result, len, data[2]);
 		} else if (data[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2
 			   || data[1] != IPMI_GET_MSG_FLAGS_CMD) {
+			/*
+			 * Don't abort here, maybe it was a queued
+			 * response to a previous command.
+			 */
+			ipmi_ssif_unlock_cond(ssif_info, flags);
 			pr_warn(PFX "Invalid response getting flags: %x %x\n",
 				data[0], data[1]);
 		} else {
@@ -892,6 +897,7 @@ static void msg_written_handler(struct s
 		 * for details on the intricacies of this.
 		 */
 		int left;
+		unsigned char *data_to_send;
 
 		ssif_inc_stat(ssif_info, sent_messages_parts);
 
@@ -900,6 +906,7 @@ static void msg_written_handler(struct s
 			left = 32;
 		/* Length byte. */
 		ssif_info->multi_data[ssif_info->multi_pos] = left;
+		data_to_send = ssif_info->multi_data + ssif_info->multi_pos;
 		ssif_info->multi_pos += left;
 		if (left < 32)
 			/*
@@ -913,7 +920,7 @@ static void msg_written_handler(struct s
 		rv = ssif_i2c_send(ssif_info, msg_written_handler,
 				  I2C_SMBUS_WRITE,
 				  SSIF_IPMI_MULTI_PART_REQUEST_MIDDLE,
-				  ssif_info->multi_data + ssif_info->multi_pos,
+				  data_to_send,
 				  I2C_SMBUS_BLOCK_DATA);
 		if (rv < 0) {
 			/* request failed, just return the error. */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/ipmi/ipmi_watchdog.c linux-libre-4.9.52-gnu/drivers/char/ipmi/ipmi_watchdog.c
--- linux-libre-4.9-gnu/drivers/char/ipmi/ipmi_watchdog.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/ipmi/ipmi_watchdog.c	2017-09-27 08:40:05.000000000 -0400
@@ -1162,10 +1162,11 @@ static int wdog_reboot_handler(struct no
 			ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
 			ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
 		} else if (ipmi_watchdog_state != WDOG_TIMEOUT_NONE) {
-			/* Set a long timer to let the reboot happens, but
-			   reboot if it hangs, but only if the watchdog
+			/* Set a long timer to let the reboot happen or
+			   reset if it hangs, but only if the watchdog
 			   timer was already running. */
-			timeout = 120;
+			if (timeout < 120)
+				timeout = 120;
 			pretimeout = 0;
 			ipmi_watchdog_state = WDOG_TIMEOUT_RESET;
 			ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/Kconfig linux-libre-4.9.52-gnu/drivers/char/Kconfig
--- linux-libre-4.9-gnu/drivers/char/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -571,9 +571,12 @@ config TELCLOCK
 	  controlling the behavior of this hardware.
 
 config DEVPORT
-	bool
+	bool "/dev/port character device"
 	depends on ISA || PCI
 	default y
+	help
+	  Say Y here if you want to support the /dev/port device. The /dev/port
+	  device is similar to /dev/mem, but for I/O ports.
 
 source "drivers/s390/char/Kconfig"
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/lp.c linux-libre-4.9.52-gnu/drivers/char/lp.c
--- linux-libre-4.9-gnu/drivers/char/lp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/lp.c	2017-09-27 08:40:05.000000000 -0400
@@ -859,7 +859,11 @@ static int __init lp_setup (char *str)
 	} else if (!strcmp(str, "auto")) {
 		parport_nr[0] = LP_PARPORT_AUTO;
 	} else if (!strcmp(str, "none")) {
-		parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+		if (parport_ptr < LP_NO)
+			parport_nr[parport_ptr++] = LP_PARPORT_NONE;
+		else
+			printk(KERN_INFO "lp: too many ports, %s ignored.\n",
+			       str);
 	} else if (!strcmp(str, "reset")) {
 		reset = 1;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/mem.c linux-libre-4.9.52-gnu/drivers/char/mem.c
--- linux-libre-4.9-gnu/drivers/char/mem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/mem.c	2017-09-27 08:40:05.000000000 -0400
@@ -60,6 +60,10 @@ static inline int valid_mmap_phys_addr_r
 #endif
 
 #ifdef CONFIG_STRICT_DEVMEM
+static inline int page_is_allowed(unsigned long pfn)
+{
+	return devmem_is_allowed(pfn);
+}
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
 	u64 from = ((u64)pfn) << PAGE_SHIFT;
@@ -75,6 +79,10 @@ static inline int range_is_allowed(unsig
 	return 1;
 }
 #else
+static inline int page_is_allowed(unsigned long pfn)
+{
+	return 1;
+}
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
 	return 1;
@@ -122,23 +130,31 @@ static ssize_t read_mem(struct file *fil
 
 	while (count > 0) {
 		unsigned long remaining;
+		int allowed;
 
 		sz = size_inside_page(p, count);
 
-		if (!range_is_allowed(p >> PAGE_SHIFT, count))
+		allowed = page_is_allowed(p >> PAGE_SHIFT);
+		if (!allowed)
 			return -EPERM;
+		if (allowed == 2) {
+			/* Show zeros for restricted memory. */
+			remaining = clear_user(buf, sz);
+		} else {
+			/*
+			 * On ia64 if a page has been mapped somewhere as
+			 * uncached, then it must also be accessed uncached
+			 * by the kernel or data corruption may occur.
+			 */
+			ptr = xlate_dev_mem_ptr(p);
+			if (!ptr)
+				return -EFAULT;
 
-		/*
-		 * On ia64 if a page has been mapped somewhere as uncached, then
-		 * it must also be accessed uncached by the kernel or data
-		 * corruption may occur.
-		 */
-		ptr = xlate_dev_mem_ptr(p);
-		if (!ptr)
-			return -EFAULT;
+			remaining = copy_to_user(buf, ptr, sz);
+
+			unxlate_dev_mem_ptr(p, ptr);
+		}
 
-		remaining = copy_to_user(buf, ptr, sz);
-		unxlate_dev_mem_ptr(p, ptr);
 		if (remaining)
 			return -EFAULT;
 
@@ -181,30 +197,36 @@ static ssize_t write_mem(struct file *fi
 #endif
 
 	while (count > 0) {
+		int allowed;
+
 		sz = size_inside_page(p, count);
 
-		if (!range_is_allowed(p >> PAGE_SHIFT, sz))
+		allowed = page_is_allowed(p >> PAGE_SHIFT);
+		if (!allowed)
 			return -EPERM;
 
-		/*
-		 * On ia64 if a page has been mapped somewhere as uncached, then
-		 * it must also be accessed uncached by the kernel or data
-		 * corruption may occur.
-		 */
-		ptr = xlate_dev_mem_ptr(p);
-		if (!ptr) {
-			if (written)
-				break;
-			return -EFAULT;
-		}
+		/* Skip actual writing when a page is marked as restricted. */
+		if (allowed == 1) {
+			/*
+			 * On ia64 if a page has been mapped somewhere as
+			 * uncached, then it must also be accessed uncached
+			 * by the kernel or data corruption may occur.
+			 */
+			ptr = xlate_dev_mem_ptr(p);
+			if (!ptr) {
+				if (written)
+					break;
+				return -EFAULT;
+			}
 
-		copied = copy_from_user(ptr, buf, sz);
-		unxlate_dev_mem_ptr(p, ptr);
-		if (copied) {
-			written += sz - copied;
-			if (written)
-				break;
-			return -EFAULT;
+			copied = copy_from_user(ptr, buf, sz);
+			unxlate_dev_mem_ptr(p, ptr);
+			if (copied) {
+				written += sz - copied;
+				if (written)
+					break;
+				return -EFAULT;
+			}
 		}
 
 		buf += sz;
@@ -318,6 +340,11 @@ static const struct vm_operations_struct
 static int mmap_mem(struct file *file, struct vm_area_struct *vma)
 {
 	size_t size = vma->vm_end - vma->vm_start;
+	phys_addr_t offset = (phys_addr_t)vma->vm_pgoff << PAGE_SHIFT;
+
+	/* It's illegal to wrap around the end of the physical address space. */
+	if (offset + (phys_addr_t)size - 1 < offset)
+		return -EINVAL;
 
 	if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size))
 		return -EINVAL;
@@ -381,9 +408,6 @@ static ssize_t read_kmem(struct file *fi
 	char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
 	int err = 0;
 
-	if (!pfn_valid(PFN_DOWN(p)))
-		return -EIO;
-
 	read = 0;
 	if (p < (unsigned long) high_memory) {
 		low_count = count;
@@ -412,6 +436,8 @@ static ssize_t read_kmem(struct file *fi
 			 * by the kernel or data corruption may occur
 			 */
 			kbuf = xlate_dev_kmem_ptr((void *)p);
+			if (!virt_addr_valid(kbuf))
+				return -ENXIO;
 
 			if (copy_to_user(buf, kbuf, sz))
 				return -EFAULT;
@@ -482,6 +508,8 @@ static ssize_t do_write_kmem(unsigned lo
 		 * corruption may occur.
 		 */
 		ptr = xlate_dev_kmem_ptr((void *)p);
+		if (!virt_addr_valid(ptr))
+			return -ENXIO;
 
 		copied = copy_from_user(ptr, buf, sz);
 		if (copied) {
@@ -512,9 +540,6 @@ static ssize_t write_kmem(struct file *f
 	char *kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */
 	int err = 0;
 
-	if (!pfn_valid(PFN_DOWN(p)))
-		return -EIO;
-
 	if (p < (unsigned long) high_memory) {
 		unsigned long to_write = min_t(unsigned long, count,
 					       (unsigned long)high_memory - p);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/pcmcia/cm4040_cs.c linux-libre-4.9.52-gnu/drivers/char/pcmcia/cm4040_cs.c
--- linux-libre-4.9-gnu/drivers/char/pcmcia/cm4040_cs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/pcmcia/cm4040_cs.c	2017-09-27 08:40:05.000000000 -0400
@@ -374,7 +374,7 @@ static ssize_t cm4040_write(struct file
 
 	rc = write_sync_reg(SCR_HOST_TO_READER_START, dev);
 	if (rc <= 0) {
-		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);
+		DEBUGP(5, dev, "write_sync_reg c=%.2zx\n", rc);
 		DEBUGP(2, dev, "<- cm4040_write (failed)\n");
 		if (rc == -ERESTARTSYS)
 			return rc;
@@ -387,7 +387,7 @@ static ssize_t cm4040_write(struct file
 	for (i = 0; i < bytes_to_write; i++) {
 		rc = wait_for_bulk_out_ready(dev);
 		if (rc <= 0) {
-			DEBUGP(5, dev, "wait_for_bulk_out_ready rc=%.2Zx\n",
+			DEBUGP(5, dev, "wait_for_bulk_out_ready rc=%.2zx\n",
 			       rc);
 			DEBUGP(2, dev, "<- cm4040_write (failed)\n");
 			if (rc == -ERESTARTSYS)
@@ -403,7 +403,7 @@ static ssize_t cm4040_write(struct file
 	rc = write_sync_reg(SCR_HOST_TO_READER_DONE, dev);
 
 	if (rc <= 0) {
-		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);
+		DEBUGP(5, dev, "write_sync_reg c=%.2zx\n", rc);
 		DEBUGP(2, dev, "<- cm4040_write (failed)\n");
 		if (rc == -ERESTARTSYS)
 			return rc;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/ppdev.c linux-libre-4.9.52-gnu/drivers/char/ppdev.c
--- linux-libre-4.9-gnu/drivers/char/ppdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/ppdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -84,8 +84,14 @@ struct pp_struct {
 	struct ieee1284_info state;
 	struct ieee1284_info saved_state;
 	long default_inactivity;
+	int index;
 };
 
+/* should we use PARDEVICE_MAX here? */
+static struct device *devices[PARPORT_MAX];
+
+static DEFINE_IDA(ida_index);
+
 /* pp_struct.flags bitfields */
 #define PP_CLAIMED    (1<<0)
 #define PP_EXCL       (1<<1)
@@ -287,6 +293,7 @@ static int register_device(int minor, st
 	struct pardevice *pdev = NULL;
 	char *name;
 	struct pardev_cb ppdev_cb;
+	int index;
 
 	name = kasprintf(GFP_KERNEL, CHRDEV "%x", minor);
 	if (name == NULL)
@@ -299,20 +306,23 @@ static int register_device(int minor, st
 		return -ENXIO;
 	}
 
+	index = ida_simple_get(&ida_index, 0, 0, GFP_KERNEL);
 	memset(&ppdev_cb, 0, sizeof(ppdev_cb));
 	ppdev_cb.irq_func = pp_irq;
 	ppdev_cb.flags = (pp->flags & PP_EXCL) ? PARPORT_FLAG_EXCL : 0;
 	ppdev_cb.private = pp;
-	pdev = parport_register_dev_model(port, name, &ppdev_cb, minor);
+	pdev = parport_register_dev_model(port, name, &ppdev_cb, index);
 	parport_put_port(port);
 
 	if (!pdev) {
 		printk(KERN_WARNING "%s: failed to register device!\n", name);
+		ida_simple_remove(&ida_index, index);
 		kfree(name);
 		return -ENXIO;
 	}
 
 	pp->pdev = pdev;
+	pp->index = index;
 	dev_dbg(&pdev->dev, "registered pardevice\n");
 	return 0;
 }
@@ -749,6 +759,7 @@ static int pp_release(struct inode *inod
 
 	if (pp->pdev) {
 		parport_unregister_device(pp->pdev);
+		ida_simple_remove(&ida_index, pp->index);
 		pp->pdev = NULL;
 		pr_debug(CHRDEV "%x: unregistered pardevice\n", minor);
 	}
@@ -789,13 +800,29 @@ static const struct file_operations pp_f
 
 static void pp_attach(struct parport *port)
 {
-	device_create(ppdev_class, port->dev, MKDEV(PP_MAJOR, port->number),
-		      NULL, "parport%d", port->number);
+	struct device *ret;
+
+	if (devices[port->number])
+		return;
+
+	ret = device_create(ppdev_class, port->dev,
+			    MKDEV(PP_MAJOR, port->number), NULL,
+			    "parport%d", port->number);
+	if (IS_ERR(ret)) {
+		pr_err("Failed to create device parport%d\n",
+		       port->number);
+		return;
+	}
+	devices[port->number] = ret;
 }
 
 static void pp_detach(struct parport *port)
 {
+	if (!devices[port->number])
+		return;
+
 	device_destroy(ppdev_class, MKDEV(PP_MAJOR, port->number));
+	devices[port->number] = NULL;
 }
 
 static int pp_probe(struct pardevice *par_dev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/random.c linux-libre-4.9.52-gnu/drivers/char/random.c
--- linux-libre-4.9-gnu/drivers/char/random.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/random.c	2017-09-27 08:40:05.000000000 -0400
@@ -2042,63 +2042,65 @@ struct ctl_table random_table[] = {
 };
 #endif 	/* CONFIG_SYSCTL */
 
-static u32 random_int_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned;
-
-int random_int_secret_init(void)
-{
-	get_random_bytes(random_int_secret, sizeof(random_int_secret));
-	return 0;
-}
-
-static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash)
-		__aligned(sizeof(unsigned long));
+struct batched_entropy {
+	union {
+		unsigned long entropy_long[CHACHA20_BLOCK_SIZE / sizeof(unsigned long)];
+		unsigned int entropy_int[CHACHA20_BLOCK_SIZE / sizeof(unsigned int)];
+	};
+	unsigned int position;
+};
 
 /*
- * Get a random word for internal kernel use only. Similar to urandom but
- * with the goal of minimal entropy pool depletion. As a result, the random
- * value is not cryptographically secure but for several uses the cost of
- * depleting entropy is too high
+ * Get a random word for internal kernel use only. The quality of the random
+ * number is either as good as RDRAND or as good as /dev/urandom, with the
+ * goal of being quite fast and not depleting entropy.
  */
-unsigned int get_random_int(void)
+static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_long);
+unsigned long get_random_long(void)
 {
-	__u32 *hash;
-	unsigned int ret;
+	unsigned long ret;
+	struct batched_entropy *batch;
 
-	if (arch_get_random_int(&ret))
+	if (arch_get_random_long(&ret))
 		return ret;
 
-	hash = get_cpu_var(get_random_int_hash);
-
-	hash[0] += current->pid + jiffies + random_get_entropy();
-	md5_transform(hash, random_int_secret);
-	ret = hash[0];
-	put_cpu_var(get_random_int_hash);
-
+	batch = &get_cpu_var(batched_entropy_long);
+	if (batch->position % ARRAY_SIZE(batch->entropy_long) == 0) {
+		extract_crng((u8 *)batch->entropy_long);
+		batch->position = 0;
+	}
+	ret = batch->entropy_long[batch->position++];
+	put_cpu_var(batched_entropy_long);
 	return ret;
 }
-EXPORT_SYMBOL(get_random_int);
+EXPORT_SYMBOL(get_random_long);
 
-/*
- * Same as get_random_int(), but returns unsigned long.
- */
-unsigned long get_random_long(void)
+#if BITS_PER_LONG == 32
+unsigned int get_random_int(void)
 {
-	__u32 *hash;
-	unsigned long ret;
+	return get_random_long();
+}
+#else
+static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_int);
+unsigned int get_random_int(void)
+{
+	unsigned int ret;
+	struct batched_entropy *batch;
 
-	if (arch_get_random_long(&ret))
+	if (arch_get_random_int(&ret))
 		return ret;
 
-	hash = get_cpu_var(get_random_int_hash);
-
-	hash[0] += current->pid + jiffies + random_get_entropy();
-	md5_transform(hash, random_int_secret);
-	ret = *(unsigned long *)hash;
-	put_cpu_var(get_random_int_hash);
-
+	batch = &get_cpu_var(batched_entropy_int);
+	if (batch->position % ARRAY_SIZE(batch->entropy_int) == 0) {
+		extract_crng((u8 *)batch->entropy_int);
+		batch->position = 0;
+	}
+	ret = batch->entropy_int[batch->position++];
+	put_cpu_var(batched_entropy_int);
 	return ret;
 }
-EXPORT_SYMBOL(get_random_long);
+#endif
+EXPORT_SYMBOL(get_random_int);
 
 /**
  * randomize_page - Generate a random, page aligned address
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm2-cmd.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm2-cmd.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm2-cmd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm2-cmd.c	2017-09-27 08:40:05.000000000 -0400
@@ -529,7 +529,7 @@ out:
 	tpm_buf_destroy(&buf);
 
 	if (rc > 0) {
-		if ((rc & TPM2_RC_HASH) == TPM2_RC_HASH)
+		if (tpm2_rc_value(rc) == TPM2_RC_HASH)
 			rc = -EINVAL;
 		else
 			rc = -EPERM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm-chip.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm-chip.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm-chip.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm-chip.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,6 +130,41 @@ static void tpm_dev_release(struct devic
 	kfree(chip);
 }
 
+
+/**
+ * tpm_class_shutdown() - prepare the TPM device for loss of power.
+ * @dev: device to which the chip is associated.
+ *
+ * Issues a TPM2_Shutdown command prior to loss of power, as required by the
+ * TPM 2.0 spec.
+ * Then, calls bus- and device- specific shutdown code.
+ *
+ * XXX: This codepath relies on the fact that sysfs is not enabled for
+ * TPM2: sysfs uses an implicit lock on chip->ops, so this could race if TPM2
+ * has sysfs support enabled before TPM sysfs's implicit locking is fixed.
+ */
+static int tpm_class_shutdown(struct device *dev)
+{
+	struct tpm_chip *chip = container_of(dev, struct tpm_chip, dev);
+
+	if (chip->flags & TPM_CHIP_FLAG_TPM2) {
+		down_write(&chip->ops_sem);
+		tpm2_shutdown(chip, TPM2_SU_CLEAR);
+		chip->ops = NULL;
+		up_write(&chip->ops_sem);
+	}
+	/* Allow bus- and device-specific code to run. Note: since chip->ops
+	 * is NULL, more-specific shutdown code will not be able to issue TPM
+	 * commands.
+	 */
+	if (dev->bus && dev->bus->shutdown)
+		dev->bus->shutdown(dev);
+	else if (dev->driver && dev->driver->shutdown)
+		dev->driver->shutdown(dev);
+	return 0;
+}
+
+
 /**
  * tpm_chip_alloc() - allocate a new struct tpm_chip instance
  * @pdev: device to which the chip is associated
@@ -140,7 +175,7 @@ static void tpm_dev_release(struct devic
  * Allocates a new struct tpm_chip instance and assigns a free
  * device number for it. Must be paired with put_device(&chip->dev).
  */
-struct tpm_chip *tpm_chip_alloc(struct device *dev,
+struct tpm_chip *tpm_chip_alloc(struct device *pdev,
 				const struct tpm_class_ops *ops)
 {
 	struct tpm_chip *chip;
@@ -159,7 +194,7 @@ struct tpm_chip *tpm_chip_alloc(struct d
 	rc = idr_alloc(&dev_nums_idr, NULL, 0, TPM_NUM_DEVICES, GFP_KERNEL);
 	mutex_unlock(&idr_lock);
 	if (rc < 0) {
-		dev_err(dev, "No available tpm device numbers\n");
+		dev_err(pdev, "No available tpm device numbers\n");
 		kfree(chip);
 		return ERR_PTR(rc);
 	}
@@ -168,8 +203,9 @@ struct tpm_chip *tpm_chip_alloc(struct d
 	device_initialize(&chip->dev);
 
 	chip->dev.class = tpm_class;
+	chip->dev.class->shutdown = tpm_class_shutdown;
 	chip->dev.release = tpm_dev_release;
-	chip->dev.parent = dev;
+	chip->dev.parent = pdev;
 	chip->dev.groups = chip->groups;
 
 	if (chip->dev_num == 0)
@@ -181,7 +217,7 @@ struct tpm_chip *tpm_chip_alloc(struct d
 	if (rc)
 		goto out;
 
-	if (!dev)
+	if (!pdev)
 		chip->flags |= TPM_CHIP_FLAG_VIRTUAL;
 
 	cdev_init(&chip->cdev, &tpm_fops);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm_crb.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_crb.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm_crb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_crb.c	2017-09-27 08:40:05.000000000 -0400
@@ -111,8 +111,7 @@ static int crb_recv(struct tpm_chip *chi
 
 	memcpy_fromio(buf, priv->rsp, 6);
 	expected = be32_to_cpup((__be32 *) &buf[2]);
-
-	if (expected > count)
+	if (expected > count || expected < 6)
 		return -EIO;
 
 	memcpy_fromio(&buf[6], &priv->rsp[6], expected - 6);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm.h linux-libre-4.9.52-gnu/drivers/char/tpm/tpm.h
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm.h	2017-09-27 08:40:05.000000000 -0400
@@ -518,6 +518,11 @@ static inline void tpm_add_ppi(struct tp
 }
 #endif
 
+static inline inline u32 tpm2_rc_value(u32 rc)
+{
+	return (rc & BIT(7)) ? rc & 0xff : rc;
+}
+
 int tpm2_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf);
 int tpm2_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash);
 int tpm2_get_random(struct tpm_chip *chip, u8 *out, size_t max);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_i2c_nuvoton.c	2017-09-27 08:40:05.000000000 -0400
@@ -49,9 +49,10 @@
  */
 #define TPM_I2C_MAX_BUF_SIZE           32
 #define TPM_I2C_RETRY_COUNT            32
-#define TPM_I2C_BUS_DELAY              1       /* msec */
-#define TPM_I2C_RETRY_DELAY_SHORT      2       /* msec */
-#define TPM_I2C_RETRY_DELAY_LONG       10      /* msec */
+#define TPM_I2C_BUS_DELAY              1000      	/* usec */
+#define TPM_I2C_RETRY_DELAY_SHORT      (2 * 1000)	/* usec */
+#define TPM_I2C_RETRY_DELAY_LONG       (10 * 1000) 	/* usec */
+#define TPM_I2C_DELAY_RANGE            300		/* usec */
 
 #define OF_IS_TPM2 ((void *)1)
 #define I2C_IS_TPM2 1
@@ -123,7 +124,9 @@ static s32 i2c_nuvoton_write_status(stru
 	/* this causes the current command to be aborted */
 	for (i = 0, status = -1; i < TPM_I2C_RETRY_COUNT && status < 0; i++) {
 		status = i2c_nuvoton_write_buf(client, TPM_STS, 1, &data);
-		msleep(TPM_I2C_BUS_DELAY);
+		if (status < 0)
+			usleep_range(TPM_I2C_BUS_DELAY, TPM_I2C_BUS_DELAY
+				     + TPM_I2C_DELAY_RANGE);
 	}
 	return status;
 }
@@ -160,7 +163,8 @@ static int i2c_nuvoton_get_burstcount(st
 			burst_count = min_t(u8, TPM_I2C_MAX_BUF_SIZE, data);
 			break;
 		}
-		msleep(TPM_I2C_BUS_DELAY);
+		usleep_range(TPM_I2C_BUS_DELAY, TPM_I2C_BUS_DELAY
+			     + TPM_I2C_DELAY_RANGE);
 	} while (time_before(jiffies, stop));
 
 	return burst_count;
@@ -203,13 +207,17 @@ static int i2c_nuvoton_wait_for_stat(str
 			return 0;
 
 		/* use polling to wait for the event */
-		ten_msec = jiffies + msecs_to_jiffies(TPM_I2C_RETRY_DELAY_LONG);
+		ten_msec = jiffies + usecs_to_jiffies(TPM_I2C_RETRY_DELAY_LONG);
 		stop = jiffies + timeout;
 		do {
 			if (time_before(jiffies, ten_msec))
-				msleep(TPM_I2C_RETRY_DELAY_SHORT);
+				usleep_range(TPM_I2C_RETRY_DELAY_SHORT,
+					     TPM_I2C_RETRY_DELAY_SHORT
+					     + TPM_I2C_DELAY_RANGE);
 			else
-				msleep(TPM_I2C_RETRY_DELAY_LONG);
+				usleep_range(TPM_I2C_RETRY_DELAY_LONG,
+					     TPM_I2C_RETRY_DELAY_LONG
+					     + TPM_I2C_DELAY_RANGE);
 			status_valid = i2c_nuvoton_check_status(chip, mask,
 								value);
 			if (status_valid)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm_ibmvtpm.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_ibmvtpm.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm_ibmvtpm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_ibmvtpm.c	2017-09-27 08:40:05.000000000 -0400
@@ -295,6 +295,8 @@ static int tpm_ibmvtpm_remove(struct vio
 	}
 
 	kfree(ibmvtpm);
+	/* For tpm_ibmvtpm_get_desired_dma */
+	dev_set_drvdata(&vdev->dev, NULL);
 
 	return 0;
 }
@@ -309,13 +311,16 @@ static int tpm_ibmvtpm_remove(struct vio
 static unsigned long tpm_ibmvtpm_get_desired_dma(struct vio_dev *vdev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(&vdev->dev);
-	struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
+	struct ibmvtpm_dev *ibmvtpm;
 
-	/* ibmvtpm initializes at probe time, so the data we are
-	* asking for may not be set yet. Estimate that 4K required
-	* for TCE-mapped buffer in addition to CRQ.
-	*/
-	if (!ibmvtpm)
+	/*
+	 * ibmvtpm initializes at probe time, so the data we are
+	 * asking for may not be set yet. Estimate that 4K required
+	 * for TCE-mapped buffer in addition to CRQ.
+	 */
+	if (chip)
+		ibmvtpm = dev_get_drvdata(&chip->dev);
+	else
 		return CRQ_RES_BUF_SIZE + PAGE_SIZE;
 
 	return CRQ_RES_BUF_SIZE + ibmvtpm->rtce_size;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm-interface.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm-interface.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm-interface.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm-interface.c	2017-09-27 08:40:05.000000000 -0400
@@ -489,8 +489,7 @@ static int tpm_startup(struct tpm_chip *
 int tpm_get_timeouts(struct tpm_chip *chip)
 {
 	struct tpm_cmd_t tpm_cmd;
-	unsigned long new_timeout[4];
-	unsigned long old_timeout[4];
+	unsigned long timeout_old[4], timeout_chip[4], timeout_eff[4];
 	struct duration_t *duration_cap;
 	ssize_t rc;
 
@@ -542,11 +541,15 @@ int tpm_get_timeouts(struct tpm_chip *ch
 	    != sizeof(tpm_cmd.header.out) + sizeof(u32) + 4 * sizeof(u32))
 		return -EINVAL;
 
-	old_timeout[0] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.a);
-	old_timeout[1] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.b);
-	old_timeout[2] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.c);
-	old_timeout[3] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.d);
-	memcpy(new_timeout, old_timeout, sizeof(new_timeout));
+	timeout_old[0] = jiffies_to_usecs(chip->timeout_a);
+	timeout_old[1] = jiffies_to_usecs(chip->timeout_b);
+	timeout_old[2] = jiffies_to_usecs(chip->timeout_c);
+	timeout_old[3] = jiffies_to_usecs(chip->timeout_d);
+	timeout_chip[0] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.a);
+	timeout_chip[1] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.b);
+	timeout_chip[2] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.c);
+	timeout_chip[3] = be32_to_cpu(tpm_cmd.params.getcap_out.cap.timeout.d);
+	memcpy(timeout_eff, timeout_chip, sizeof(timeout_eff));
 
 	/*
 	 * Provide ability for vendor overrides of timeout values in case
@@ -554,16 +557,24 @@ int tpm_get_timeouts(struct tpm_chip *ch
 	 */
 	if (chip->ops->update_timeouts != NULL)
 		chip->timeout_adjusted =
-			chip->ops->update_timeouts(chip, new_timeout);
+			chip->ops->update_timeouts(chip, timeout_eff);
 
 	if (!chip->timeout_adjusted) {
-		/* Don't overwrite default if value is 0 */
-		if (new_timeout[0] != 0 && new_timeout[0] < 1000) {
-			int i;
+		/* Restore default if chip reported 0 */
+		int i;
 
+		for (i = 0; i < ARRAY_SIZE(timeout_eff); i++) {
+			if (timeout_eff[i])
+				continue;
+
+			timeout_eff[i] = timeout_old[i];
+			chip->timeout_adjusted = true;
+		}
+
+		if (timeout_eff[0] != 0 && timeout_eff[0] < 1000) {
 			/* timeouts in msec rather usec */
-			for (i = 0; i != ARRAY_SIZE(new_timeout); i++)
-				new_timeout[i] *= 1000;
+			for (i = 0; i != ARRAY_SIZE(timeout_eff); i++)
+				timeout_eff[i] *= 1000;
 			chip->timeout_adjusted = true;
 		}
 	}
@@ -572,16 +583,16 @@ int tpm_get_timeouts(struct tpm_chip *ch
 	if (chip->timeout_adjusted) {
 		dev_info(&chip->dev,
 			 HW_ERR "Adjusting reported timeouts: A %lu->%luus B %lu->%luus C %lu->%luus D %lu->%luus\n",
-			 old_timeout[0], new_timeout[0],
-			 old_timeout[1], new_timeout[1],
-			 old_timeout[2], new_timeout[2],
-			 old_timeout[3], new_timeout[3]);
+			 timeout_chip[0], timeout_eff[0],
+			 timeout_chip[1], timeout_eff[1],
+			 timeout_chip[2], timeout_eff[2],
+			 timeout_chip[3], timeout_eff[3]);
 	}
 
-	chip->timeout_a = usecs_to_jiffies(new_timeout[0]);
-	chip->timeout_b = usecs_to_jiffies(new_timeout[1]);
-	chip->timeout_c = usecs_to_jiffies(new_timeout[2]);
-	chip->timeout_d = usecs_to_jiffies(new_timeout[3]);
+	chip->timeout_a = usecs_to_jiffies(timeout_eff[0]);
+	chip->timeout_b = usecs_to_jiffies(timeout_eff[1]);
+	chip->timeout_c = usecs_to_jiffies(timeout_eff[2]);
+	chip->timeout_d = usecs_to_jiffies(timeout_eff[3]);
 
 duration:
 	tpm_cmd.header.in = tpm_getcap_header;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm-sysfs.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm-sysfs.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm-sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm-sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -35,9 +35,10 @@ static ssize_t pubek_show(struct device
 	ssize_t err;
 	int i, rc;
 	char *str = buf;
-
 	struct tpm_chip *chip = to_tpm_chip(dev);
 
+	memset(&tpm_cmd, 0, sizeof(tpm_cmd));
+
 	tpm_cmd.header.in = tpm_readpubek_header;
 	err = tpm_transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE, 0,
 			       "attempting to read the PUBEK");
@@ -284,6 +285,11 @@ static const struct attribute_group tpm_
 
 void tpm_sysfs_add_device(struct tpm_chip *chip)
 {
+	/* XXX: If you wish to remove this restriction, you must first update
+	 * tpm_sysfs to explicitly lock chip->ops.
+	 */
+	if (chip->flags & TPM_CHIP_FLAG_TPM2)
+		return;
 	/* The sysfs routines rely on an implicit tpm_try_get_ops, device_del
 	 * is called before ops is null'd and the sysfs core synchronizes this
 	 * removal so that no callbacks are running or can run again
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm_tis.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_tis.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm_tis.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_tis.c	2017-09-27 08:40:05.000000000 -0400
@@ -421,7 +421,7 @@ err_pnp:
 	acpi_bus_unregister_driver(&tis_acpi_driver);
 err_acpi:
 #endif
-	platform_device_unregister(force_pdev);
+	platform_driver_unregister(&tis_drv);
 err_platform:
 	if (force_pdev)
 		platform_device_unregister(force_pdev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm_tis_core.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_tis_core.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm_tis_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_tis_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -160,8 +160,10 @@ static int get_burstcount(struct tpm_chi
 	u32 value;
 
 	/* wait for burstcount */
-	/* which timeout value, spec has 2 answers (c & d) */
-	stop = jiffies + chip->timeout_d;
+	if (chip->flags & TPM_CHIP_FLAG_TPM2)
+		stop = jiffies + chip->timeout_a;
+	else
+		stop = jiffies + chip->timeout_d;
 	do {
 		rc = tpm_tis_read32(priv, TPM_STS(priv->locality), &value);
 		if (rc < 0)
@@ -185,7 +187,12 @@ static int recv_data(struct tpm_chip *ch
 				 TPM_STS_DATA_AVAIL | TPM_STS_VALID,
 				 chip->timeout_c,
 				 &priv->read_queue, true) == 0) {
-		burstcnt = min_t(int, get_burstcount(chip), count - size);
+		burstcnt = get_burstcount(chip);
+		if (burstcnt < 0) {
+			dev_err(&chip->dev, "Unable to read burstcount\n");
+			return burstcnt;
+		}
+		burstcnt = min_t(int, burstcnt, count - size);
 
 		rc = tpm_tis_read_bytes(priv, TPM_DATA_FIFO(priv->locality),
 					burstcnt, buf + size);
@@ -271,7 +278,13 @@ static int tpm_tis_send_data(struct tpm_
 	}
 
 	while (count < len - 1) {
-		burstcnt = min_t(int, get_burstcount(chip), len - count - 1);
+		burstcnt = get_burstcount(chip);
+		if (burstcnt < 0) {
+			dev_err(&chip->dev, "Unable to read burstcount\n");
+			rc = burstcnt;
+			goto out_err;
+		}
+		burstcnt = min_t(int, burstcnt, len - count - 1);
 		rc = tpm_tis_write_bytes(priv, TPM_DATA_FIFO(priv->locality),
 					 burstcnt, buf + count);
 		if (rc < 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/tpm_tis_spi.c linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_tis_spi.c
--- linux-libre-4.9-gnu/drivers/char/tpm/tpm_tis_spi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/tpm_tis_spi.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,8 +48,8 @@ struct tpm_tis_spi_phy {
 	struct tpm_tis_data priv;
 	struct spi_device *spi_device;
 
-	u8 tx_buf[MAX_SPI_FRAMESIZE + 4];
-	u8 rx_buf[MAX_SPI_FRAMESIZE + 4];
+	u8 tx_buf[4];
+	u8 rx_buf[4];
 };
 
 static inline struct tpm_tis_spi_phy *to_tpm_tis_spi_phy(struct tpm_tis_data *data)
@@ -57,122 +57,98 @@ static inline struct tpm_tis_spi_phy *to
 	return container_of(data, struct tpm_tis_spi_phy, priv);
 }
 
-static int tpm_tis_spi_read_bytes(struct tpm_tis_data *data, u32 addr,
-				  u16 len, u8 *result)
+static int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
+				u8 *buffer, u8 direction)
 {
 	struct tpm_tis_spi_phy *phy = to_tpm_tis_spi_phy(data);
-	int ret, i;
+	int ret = 0;
+	int i;
 	struct spi_message m;
-	struct spi_transfer spi_xfer = {
-		.tx_buf = phy->tx_buf,
-		.rx_buf = phy->rx_buf,
-		.len = 4,
-	};
-
-	if (len > MAX_SPI_FRAMESIZE)
-		return -ENOMEM;
+	struct spi_transfer spi_xfer;
+	u8 transfer_len;
 
-	phy->tx_buf[0] = 0x80 | (len - 1);
-	phy->tx_buf[1] = 0xd4;
-	phy->tx_buf[2] = (addr >> 8)  & 0xFF;
-	phy->tx_buf[3] = addr	      & 0xFF;
+	spi_bus_lock(phy->spi_device->master);
 
-	spi_xfer.cs_change = 1;
-	spi_message_init(&m);
-	spi_message_add_tail(&spi_xfer, &m);
+	while (len) {
+		transfer_len = min_t(u16, len, MAX_SPI_FRAMESIZE);
 
-	spi_bus_lock(phy->spi_device->master);
-	ret = spi_sync_locked(phy->spi_device, &m);
-	if (ret < 0)
-		goto exit;
+		phy->tx_buf[0] = direction | (transfer_len - 1);
+		phy->tx_buf[1] = 0xd4;
+		phy->tx_buf[2] = addr >> 8;
+		phy->tx_buf[3] = addr;
 
-	memset(phy->tx_buf, 0, len);
+		memset(&spi_xfer, 0, sizeof(spi_xfer));
+		spi_xfer.tx_buf = phy->tx_buf;
+		spi_xfer.rx_buf = phy->rx_buf;
+		spi_xfer.len = 4;
+		spi_xfer.cs_change = 1;
 
-	/* According to TCG PTP specification, if there is no TPM present at
-	 * all, then the design has a weak pull-up on MISO. If a TPM is not
-	 * present, a pull-up on MISO means that the SB controller sees a 1,
-	 * and will latch in 0xFF on the read.
-	 */
-	for (i = 0; (phy->rx_buf[0] & 0x01) == 0 && i < TPM_RETRY; i++) {
-		spi_xfer.len = 1;
 		spi_message_init(&m);
 		spi_message_add_tail(&spi_xfer, &m);
 		ret = spi_sync_locked(phy->spi_device, &m);
 		if (ret < 0)
 			goto exit;
-	}
-
-	spi_xfer.cs_change = 0;
-	spi_xfer.len = len;
-	spi_xfer.rx_buf = result;
-
-	spi_message_init(&m);
-	spi_message_add_tail(&spi_xfer, &m);
-	ret = spi_sync_locked(phy->spi_device, &m);
-
-exit:
-	spi_bus_unlock(phy->spi_device->master);
-	return ret;
-}
-
-static int tpm_tis_spi_write_bytes(struct tpm_tis_data *data, u32 addr,
-				   u16 len, u8 *value)
-{
-	struct tpm_tis_spi_phy *phy = to_tpm_tis_spi_phy(data);
-	int ret, i;
-	struct spi_message m;
-	struct spi_transfer spi_xfer = {
-		.tx_buf = phy->tx_buf,
-		.rx_buf = phy->rx_buf,
-		.len = 4,
-	};
 
-	if (len > MAX_SPI_FRAMESIZE)
-		return -ENOMEM;
+		if ((phy->rx_buf[3] & 0x01) == 0) {
+			// handle SPI wait states
+			phy->tx_buf[0] = 0;
 
-	phy->tx_buf[0] = len - 1;
-	phy->tx_buf[1] = 0xd4;
-	phy->tx_buf[2] = (addr >> 8)  & 0xFF;
-	phy->tx_buf[3] = addr         & 0xFF;
+			for (i = 0; i < TPM_RETRY; i++) {
+				spi_xfer.len = 1;
+				spi_message_init(&m);
+				spi_message_add_tail(&spi_xfer, &m);
+				ret = spi_sync_locked(phy->spi_device, &m);
+				if (ret < 0)
+					goto exit;
+				if (phy->rx_buf[0] & 0x01)
+					break;
+			}
 
-	spi_xfer.cs_change = 1;
-	spi_message_init(&m);
-	spi_message_add_tail(&spi_xfer, &m);
+			if (i == TPM_RETRY) {
+				ret = -ETIMEDOUT;
+				goto exit;
+			}
+		}
 
-	spi_bus_lock(phy->spi_device->master);
-	ret = spi_sync_locked(phy->spi_device, &m);
-	if (ret < 0)
-		goto exit;
+		spi_xfer.cs_change = 0;
+		spi_xfer.len = transfer_len;
+		spi_xfer.delay_usecs = 5;
 
-	memset(phy->tx_buf, 0, len);
+		if (direction) {
+			spi_xfer.tx_buf = NULL;
+			spi_xfer.rx_buf = buffer;
+		} else {
+			spi_xfer.tx_buf = buffer;
+			spi_xfer.rx_buf = NULL;
+		}
 
-	/* According to TCG PTP specification, if there is no TPM present at
-	 * all, then the design has a weak pull-up on MISO. If a TPM is not
-	 * present, a pull-up on MISO means that the SB controller sees a 1,
-	 * and will latch in 0xFF on the read.
-	 */
-	for (i = 0; (phy->rx_buf[0] & 0x01) == 0 && i < TPM_RETRY; i++) {
-		spi_xfer.len = 1;
 		spi_message_init(&m);
 		spi_message_add_tail(&spi_xfer, &m);
 		ret = spi_sync_locked(phy->spi_device, &m);
 		if (ret < 0)
 			goto exit;
-	}
 
-	spi_xfer.len = len;
-	spi_xfer.tx_buf = value;
-	spi_xfer.cs_change = 0;
-	spi_xfer.tx_buf = value;
-	spi_message_init(&m);
-	spi_message_add_tail(&spi_xfer, &m);
-	ret = spi_sync_locked(phy->spi_device, &m);
+		len -= transfer_len;
+		buffer += transfer_len;
+	}
 
 exit:
 	spi_bus_unlock(phy->spi_device->master);
 	return ret;
 }
 
+static int tpm_tis_spi_read_bytes(struct tpm_tis_data *data, u32 addr,
+				  u16 len, u8 *result)
+{
+	return tpm_tis_spi_transfer(data, addr, len, result, 0x80);
+}
+
+static int tpm_tis_spi_write_bytes(struct tpm_tis_data *data, u32 addr,
+				   u16 len, u8 *value)
+{
+	return tpm_tis_spi_transfer(data, addr, len, value, 0);
+}
+
 static int tpm_tis_spi_read16(struct tpm_tis_data *data, u32 addr, u16 *result)
 {
 	int rc;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/tpm/xen-tpmfront.c linux-libre-4.9.52-gnu/drivers/char/tpm/xen-tpmfront.c
--- linux-libre-4.9-gnu/drivers/char/tpm/xen-tpmfront.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/tpm/xen-tpmfront.c	2017-09-27 08:40:05.000000000 -0400
@@ -307,7 +307,6 @@ static int tpmfront_probe(struct xenbus_
 	rv = setup_ring(dev, priv);
 	if (rv) {
 		chip = dev_get_drvdata(&dev->dev);
-		tpm_chip_unregister(chip);
 		ring_free(priv);
 		return rv;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/char/virtio_console.c linux-libre-4.9.52-gnu/drivers/char/virtio_console.c
--- linux-libre-4.9-gnu/drivers/char/virtio_console.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/char/virtio_console.c	2017-09-27 08:40:05.000000000 -0400
@@ -1136,6 +1136,8 @@ static int put_chars(u32 vtermno, const
 {
 	struct port *port;
 	struct scatterlist sg[1];
+	void *data;
+	int ret;
 
 	if (unlikely(early_put_chars))
 		return early_put_chars(vtermno, buf, count);
@@ -1144,8 +1146,14 @@ static int put_chars(u32 vtermno, const
 	if (!port)
 		return -EPIPE;
 
-	sg_init_one(sg, buf, count);
-	return __send_to_port(port, sg, 1, count, (void *)buf, false);
+	data = kmemdup(buf, count, GFP_ATOMIC);
+	if (!data)
+		return -ENOMEM;
+
+	sg_init_one(sg, data, count);
+	ret = __send_to_port(port, sg, 1, count, data, false);
+	kfree(data);
+	return ret;
 }
 
 /*
@@ -1862,7 +1870,7 @@ static void config_work_handler(struct w
 {
 	struct ports_device *portdev;
 
-	portdev = container_of(work, struct ports_device, control_work);
+	portdev = container_of(work, struct ports_device, config_work);
 	if (!use_multiport(portdev)) {
 		struct virtio_device *vdev;
 		struct port *port;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/bcm/clk-bcm2835.c linux-libre-4.9.52-gnu/drivers/clk/bcm/clk-bcm2835.c
--- linux-libre-4.9-gnu/drivers/clk/bcm/clk-bcm2835.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/bcm/clk-bcm2835.c	2017-09-27 08:40:05.000000000 -0400
@@ -751,7 +751,9 @@ static void bcm2835_pll_divider_off(stru
 	cprman_write(cprman, data->cm_reg,
 		     (cprman_read(cprman, data->cm_reg) &
 		      ~data->load_mask) | data->hold_mask);
-	cprman_write(cprman, data->a2w_reg, A2W_PLL_CHANNEL_DISABLE);
+	cprman_write(cprman, data->a2w_reg,
+		     cprman_read(cprman, data->a2w_reg) |
+		     A2W_PLL_CHANNEL_DISABLE);
 	spin_unlock(&cprman->regs_lock);
 }
 
@@ -1596,7 +1598,7 @@ static const struct bcm2835_clk_desc clk
 		.a2w_reg = A2W_PLLH_AUX,
 		.load_mask = CM_PLLH_LOADAUX,
 		.hold_mask = 0,
-		.fixed_divider = 10),
+		.fixed_divider = 1),
 	[BCM2835_PLLH_PIX]	= REGISTER_PLL_DIV(
 		.name = "pllh_pix",
 		.source_pll = "pllh",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/clkdev.c linux-libre-4.9.52-gnu/drivers/clk/clkdev.c
--- linux-libre-4.9-gnu/drivers/clk/clkdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/clkdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -448,12 +448,20 @@ EXPORT_SYMBOL(clk_register_clkdev);
  *
  * con_id or dev_id may be NULL as a wildcard, just as in the rest of
  * clkdev.
+ *
+ * To make things easier for mass registration, we detect error clk_hws
+ * from a previous clk_hw_register_*() call, and return the error code for
+ * those.  This is to permit this function to be called immediately
+ * after clk_hw_register_*().
  */
 int clk_hw_register_clkdev(struct clk_hw *hw, const char *con_id,
 	const char *dev_id)
 {
 	struct clk_lookup *cl;
 
+	if (IS_ERR(hw))
+		return PTR_ERR(hw);
+
 	/*
 	 * Since dev_id can be NULL, and NULL is handled specially, we must
 	 * pass it as either a NULL format string, or with "%s".
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/clk-scpi.c linux-libre-4.9.52-gnu/drivers/clk/clk-scpi.c
--- linux-libre-4.9-gnu/drivers/clk/clk-scpi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/clk-scpi.c	2017-09-27 08:40:05.000000000 -0400
@@ -290,13 +290,15 @@ static int scpi_clocks_probe(struct plat
 			of_node_put(child);
 			return ret;
 		}
-	}
-	/* Add the virtual cpufreq device */
-	cpufreq_dev = platform_device_register_simple("scpi-cpufreq",
-						      -1, NULL, 0);
-	if (IS_ERR(cpufreq_dev))
-		pr_warn("unable to register cpufreq device");
 
+		if (match->data != &scpi_dvfs_ops)
+			continue;
+		/* Add the virtual cpufreq device if it's DVFS clock provider */
+		cpufreq_dev = platform_device_register_simple("scpi-cpufreq",
+							      -1, NULL, 0);
+		if (IS_ERR(cpufreq_dev))
+			pr_warn("unable to register cpufreq device");
+	}
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/clk-wm831x.c linux-libre-4.9.52-gnu/drivers/clk/clk-wm831x.c
--- linux-libre-4.9-gnu/drivers/clk/clk-wm831x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/clk-wm831x.c	2017-09-27 08:40:05.000000000 -0400
@@ -243,7 +243,7 @@ static int wm831x_clkout_is_prepared(str
 	if (ret < 0) {
 		dev_err(wm831x->dev, "Unable to read CLOCK_CONTROL_1: %d\n",
 			ret);
-		return true;
+		return false;
 	}
 
 	return (ret & WM831X_CLKOUT_ENA) != 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/imx/clk-imx31.c linux-libre-4.9.52-gnu/drivers/clk/imx/clk-imx31.c
--- linux-libre-4.9-gnu/drivers/clk/imx/clk-imx31.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/imx/clk-imx31.c	2017-09-27 08:40:05.000000000 -0400
@@ -157,10 +157,8 @@ static void __init _mx31_clocks_init(uns
 	}
 }
 
-int __init mx31_clocks_init(void)
+int __init mx31_clocks_init(unsigned long fref)
 {
-	u32 fref = 26000000; /* default */
-
 	_mx31_clocks_init(fref);
 
 	clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/Makefile linux-libre-4.9.52-gnu/drivers/clk/Makefile
--- linux-libre-4.9-gnu/drivers/clk/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -87,6 +87,8 @@ obj-y					+= ti/
 obj-$(CONFIG_CLK_UNIPHIER)		+= uniphier/
 obj-$(CONFIG_ARCH_U8500)		+= ux500/
 obj-$(CONFIG_COMMON_CLK_VERSATILE)	+= versatile/
+ifeq ($(CONFIG_COMMON_CLK), y)
 obj-$(CONFIG_X86)			+= x86/
+endif
 obj-$(CONFIG_ARCH_ZX)			+= zte/
 obj-$(CONFIG_ARCH_ZYNQ)			+= zynq/
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/nxp/clk-lpc32xx.c linux-libre-4.9.52-gnu/drivers/clk/nxp/clk-lpc32xx.c
--- linux-libre-4.9-gnu/drivers/clk/nxp/clk-lpc32xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/nxp/clk-lpc32xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1282,13 +1282,13 @@ static struct clk_hw_proto clk_hw_proto[
 
 	LPC32XX_DEFINE_MUX(PWM1_MUX, PWMCLK_CTRL, 1, 0x1, NULL, 0),
 	LPC32XX_DEFINE_DIV(PWM1_DIV, PWMCLK_CTRL, 4, 4, NULL,
-			   CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO),
+			   CLK_DIVIDER_ONE_BASED),
 	LPC32XX_DEFINE_GATE(PWM1_GATE, PWMCLK_CTRL, 0, 0),
 	LPC32XX_DEFINE_COMPOSITE(PWM1, PWM1_MUX, PWM1_DIV, PWM1_GATE),
 
 	LPC32XX_DEFINE_MUX(PWM2_MUX, PWMCLK_CTRL, 3, 0x1, NULL, 0),
 	LPC32XX_DEFINE_DIV(PWM2_DIV, PWMCLK_CTRL, 8, 4, NULL,
-			   CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO),
+			   CLK_DIVIDER_ONE_BASED),
 	LPC32XX_DEFINE_GATE(PWM2_GATE, PWMCLK_CTRL, 2, 0),
 	LPC32XX_DEFINE_COMPOSITE(PWM2, PWM2_MUX, PWM2_DIV, PWM2_GATE),
 
@@ -1335,8 +1335,7 @@ static struct clk_hw_proto clk_hw_proto[
 	LPC32XX_DEFINE_GATE(USB_DIV_GATE, USB_CTRL, 17, 0),
 	LPC32XX_DEFINE_COMPOSITE(USB_DIV, _NULL, USB_DIV_DIV, USB_DIV_GATE),
 
-	LPC32XX_DEFINE_DIV(SD_DIV, MS_CTRL, 0, 4, NULL,
-			   CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO),
+	LPC32XX_DEFINE_DIV(SD_DIV, MS_CTRL, 0, 4, NULL, CLK_DIVIDER_ONE_BASED),
 	LPC32XX_DEFINE_CLK(SD_GATE, MS_CTRL, BIT(5) | BIT(9), BIT(5) | BIT(9),
 			   0x0, BIT(5) | BIT(9), 0x0, 0x0, clk_mask_ops),
 	LPC32XX_DEFINE_COMPOSITE(SD, _NULL, SD_DIV, SD_GATE),
@@ -1478,6 +1477,20 @@ static struct clk * __init lpc32xx_clk_r
 	return clk;
 }
 
+static void __init lpc32xx_clk_div_quirk(u32 reg, u32 div_mask, u32 gate)
+{
+	u32 val;
+
+	regmap_read(clk_regmap, reg, &val);
+
+	if (!(val & div_mask)) {
+		val &= ~gate;
+		val |= BIT(__ffs(div_mask));
+	}
+
+	regmap_update_bits(clk_regmap, reg, gate | div_mask, val);
+}
+
 static void __init lpc32xx_clk_init(struct device_node *np)
 {
 	unsigned int i;
@@ -1517,6 +1530,17 @@ static void __init lpc32xx_clk_init(stru
 		return;
 	}
 
+	/*
+	 * Divider part of PWM and MS clocks requires a quirk to avoid
+	 * a misinterpretation of formally valid zero value in register
+	 * bitfield, which indicates another clock gate. Instead of
+	 * adding complexity to a gate clock ensure that zero value in
+	 * divider clock is never met in runtime.
+	 */
+	lpc32xx_clk_div_quirk(LPC32XX_CLKPWR_PWMCLK_CTRL, 0xf0, BIT(0));
+	lpc32xx_clk_div_quirk(LPC32XX_CLKPWR_PWMCLK_CTRL, 0xf00, BIT(2));
+	lpc32xx_clk_div_quirk(LPC32XX_CLKPWR_MS_CTRL, 0xf, BIT(5) | BIT(9));
+
 	for (i = 1; i < LPC32XX_CLK_MAX; i++) {
 		clk[i] = lpc32xx_clk_register(i);
 		if (IS_ERR(clk[i])) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/qcom/gcc-ipq806x.c linux-libre-4.9.52-gnu/drivers/clk/qcom/gcc-ipq806x.c
--- linux-libre-4.9-gnu/drivers/clk/qcom/gcc-ipq806x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/qcom/gcc-ipq806x.c	2017-09-27 08:40:05.000000000 -0400
@@ -2990,11 +2990,11 @@ static int gcc_ipq806x_probe(struct plat
 	struct regmap *regmap;
 	int ret;
 
-	ret = qcom_cc_register_board_clk(dev, "cxo_board", "cxo", 19200000);
+	ret = qcom_cc_register_board_clk(dev, "cxo_board", "cxo", 25000000);
 	if (ret)
 		return ret;
 
-	ret = qcom_cc_register_board_clk(dev, "pxo_board", "pxo", 27000000);
+	ret = qcom_cc_register_board_clk(dev, "pxo_board", "pxo", 25000000);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/renesas/clk-mstp.c linux-libre-4.9.52-gnu/drivers/clk/renesas/clk-mstp.c
--- linux-libre-4.9-gnu/drivers/clk/renesas/clk-mstp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/renesas/clk-mstp.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,12 +37,14 @@
  * @smstpcr: module stop control register
  * @mstpsr: module stop status register (optional)
  * @lock: protects writes to SMSTPCR
+ * @width_8bit: registers are 8-bit, not 32-bit
  */
 struct mstp_clock_group {
 	struct clk_onecell_data data;
 	void __iomem *smstpcr;
 	void __iomem *mstpsr;
 	spinlock_t lock;
+	bool width_8bit;
 };
 
 /**
@@ -59,6 +61,18 @@ struct mstp_clock {
 
 #define to_mstp_clock(_hw) container_of(_hw, struct mstp_clock, hw)
 
+static inline u32 cpg_mstp_read(struct mstp_clock_group *group,
+				u32 __iomem *reg)
+{
+	return group->width_8bit ? readb(reg) : clk_readl(reg);
+}
+
+static inline void cpg_mstp_write(struct mstp_clock_group *group, u32 val,
+				  u32 __iomem *reg)
+{
+	group->width_8bit ? writeb(val, reg) : clk_writel(val, reg);
+}
+
 static int cpg_mstp_clock_endisable(struct clk_hw *hw, bool enable)
 {
 	struct mstp_clock *clock = to_mstp_clock(hw);
@@ -70,12 +84,12 @@ static int cpg_mstp_clock_endisable(stru
 
 	spin_lock_irqsave(&group->lock, flags);
 
-	value = clk_readl(group->smstpcr);
+	value = cpg_mstp_read(group, group->smstpcr);
 	if (enable)
 		value &= ~bitmask;
 	else
 		value |= bitmask;
-	clk_writel(value, group->smstpcr);
+	cpg_mstp_write(group, value, group->smstpcr);
 
 	spin_unlock_irqrestore(&group->lock, flags);
 
@@ -83,7 +97,7 @@ static int cpg_mstp_clock_endisable(stru
 		return 0;
 
 	for (i = 1000; i > 0; --i) {
-		if (!(clk_readl(group->mstpsr) & bitmask))
+		if (!(cpg_mstp_read(group, group->mstpsr) & bitmask))
 			break;
 		cpu_relax();
 	}
@@ -114,9 +128,9 @@ static int cpg_mstp_clock_is_enabled(str
 	u32 value;
 
 	if (group->mstpsr)
-		value = clk_readl(group->mstpsr);
+		value = cpg_mstp_read(group, group->mstpsr);
 	else
-		value = clk_readl(group->smstpcr);
+		value = cpg_mstp_read(group, group->smstpcr);
 
 	return !(value & BIT(clock->bit_index));
 }
@@ -188,6 +202,9 @@ static void __init cpg_mstp_clocks_init(
 		return;
 	}
 
+	if (of_device_is_compatible(np, "renesas,r7s72100-mstp-clocks"))
+		group->width_8bit = true;
+
 	for (i = 0; i < MSTP_MAX_CLOCKS; ++i)
 		clks[i] = ERR_PTR(-ENOENT);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/renesas/renesas-cpg-mssr.c linux-libre-4.9.52-gnu/drivers/clk/renesas/renesas-cpg-mssr.c
--- linux-libre-4.9-gnu/drivers/clk/renesas/renesas-cpg-mssr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/renesas/renesas-cpg-mssr.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,9 +33,9 @@
 #include "clk-div6.h"
 
 #ifdef DEBUG
-#define WARN_DEBUG(x)	do { } while (0)
-#else
 #define WARN_DEBUG(x)	WARN_ON(x)
+#else
+#define WARN_DEBUG(x)	do { } while (0)
 #endif
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/rockchip/clk-rk3036.c linux-libre-4.9.52-gnu/drivers/clk/rockchip/clk-rk3036.c
--- linux-libre-4.9-gnu/drivers/clk/rockchip/clk-rk3036.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/rockchip/clk-rk3036.c	2017-09-27 08:40:05.000000000 -0400
@@ -127,7 +127,7 @@ PNAME(mux_ddrphy_p)		= { "dpll_ddr", "gp
 PNAME(mux_pll_src_3plls_p)	= { "apll", "dpll", "gpll" };
 PNAME(mux_timer_p)		= { "xin24m", "pclk_peri_src" };
 
-PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p)	= { "apll", "dpll", "gpll" "usb480m" };
+PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p)	= { "apll", "dpll", "gpll", "usb480m" };
 
 PNAME(mux_mmc_src_p)	= { "apll", "dpll", "gpll", "xin24m" };
 PNAME(mux_i2s_pre_p)	= { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/samsung/clk-exynos5420.c linux-libre-4.9.52-gnu/drivers/clk/samsung/clk-exynos5420.c
--- linux-libre-4.9-gnu/drivers/clk/samsung/clk-exynos5420.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/samsung/clk-exynos5420.c	2017-09-27 08:40:05.000000000 -0400
@@ -586,7 +586,7 @@ static const struct samsung_gate_clock e
 	GATE(CLK_ACLK550_CAM, "aclk550_cam", "mout_user_aclk550_cam",
 				GATE_BUS_TOP, 24, 0, 0),
 	GATE(CLK_ACLK432_SCALER, "aclk432_scaler", "mout_user_aclk432_scaler",
-				GATE_BUS_TOP, 27, 0, 0),
+				GATE_BUS_TOP, 27, CLK_IS_CRITICAL, 0),
 };
 
 static const struct samsung_mux_clock exynos5420_mux_clks[] __initconst = {
@@ -956,20 +956,20 @@ static const struct samsung_gate_clock e
 	GATE(CLK_SMMU_G2D, "smmu_g2d", "aclk333_g2d", GATE_IP_G2D, 7, 0, 0),
 
 	GATE(0, "aclk200_fsys", "mout_user_aclk200_fsys",
-			GATE_BUS_FSYS0, 9, CLK_IGNORE_UNUSED, 0),
+			GATE_BUS_FSYS0, 9, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk200_fsys2", "mout_user_aclk200_fsys2",
 			GATE_BUS_FSYS0, 10, CLK_IGNORE_UNUSED, 0),
 
 	GATE(0, "aclk333_g2d", "mout_user_aclk333_g2d",
 			GATE_BUS_TOP, 0, CLK_IGNORE_UNUSED, 0),
 	GATE(0, "aclk266_g2d", "mout_user_aclk266_g2d",
-			GATE_BUS_TOP, 1, CLK_IGNORE_UNUSED, 0),
+			GATE_BUS_TOP, 1, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk300_jpeg", "mout_user_aclk300_jpeg",
 			GATE_BUS_TOP, 4, CLK_IGNORE_UNUSED, 0),
 	GATE(0, "aclk333_432_isp0", "mout_user_aclk333_432_isp0",
 			GATE_BUS_TOP, 5, 0, 0),
 	GATE(0, "aclk300_gscl", "mout_user_aclk300_gscl",
-			GATE_BUS_TOP, 6, CLK_IGNORE_UNUSED, 0),
+			GATE_BUS_TOP, 6, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk333_432_gscl", "mout_user_aclk333_432_gscl",
 			GATE_BUS_TOP, 7, CLK_IGNORE_UNUSED, 0),
 	GATE(0, "aclk333_432_isp", "mout_user_aclk333_432_isp",
@@ -983,20 +983,20 @@ static const struct samsung_gate_clock e
 	GATE(0, "aclk166", "mout_user_aclk166",
 			GATE_BUS_TOP, 14, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_ACLK333, "aclk333", "mout_user_aclk333",
-			GATE_BUS_TOP, 15, CLK_IGNORE_UNUSED, 0),
+			GATE_BUS_TOP, 15, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk400_isp", "mout_user_aclk400_isp",
 			GATE_BUS_TOP, 16, 0, 0),
 	GATE(0, "aclk400_mscl", "mout_user_aclk400_mscl",
 			GATE_BUS_TOP, 17, 0, 0),
 	GATE(0, "aclk200_disp1", "mout_user_aclk200_disp1",
-			GATE_BUS_TOP, 18, 0, 0),
+			GATE_BUS_TOP, 18, CLK_IS_CRITICAL, 0),
 	GATE(CLK_SCLK_MPHY_IXTAL24, "sclk_mphy_ixtal24", "mphy_refclk_ixtal24",
 			GATE_BUS_TOP, 28, 0, 0),
 	GATE(CLK_SCLK_HSIC_12M, "sclk_hsic_12m", "ff_hsic_12m",
 			GATE_BUS_TOP, 29, 0, 0),
 
 	GATE(0, "aclk300_disp1", "mout_user_aclk300_disp1",
-			SRC_MASK_TOP2, 24, 0, 0),
+			SRC_MASK_TOP2, 24, CLK_IS_CRITICAL, 0),
 
 	GATE(CLK_MAU_EPLL, "mau_epll", "mout_mau_epll_clk",
 			SRC_MASK_TOP7, 20, 0, 0),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu_mp.c linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu_mp.c
--- linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu_mp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu_mp.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,6 +85,10 @@ static unsigned long ccu_mp_recalc_rate(
 	unsigned int m, p;
 	u32 reg;
 
+	/* Adjust parent_rate according to pre-dividers */
+	ccu_mux_helper_adjust_parent_for_prediv(&cmp->common, &cmp->mux,
+						-1, &parent_rate);
+
 	reg = readl(cmp->common.base + cmp->common.reg);
 
 	m = reg >> cmp->m.shift;
@@ -114,6 +118,10 @@ static int ccu_mp_set_rate(struct clk_hw
 	unsigned int m, p;
 	u32 reg;
 
+	/* Adjust parent_rate according to pre-dividers */
+	ccu_mux_helper_adjust_parent_for_prediv(&cmp->common, &cmp->mux,
+						-1, &parent_rate);
+
 	max_m = cmp->m.max ?: 1 << cmp->m.width;
 	max_p = cmp->p.max ?: 1 << ((1 << cmp->p.width) - 1);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu-sun6i-a31.c linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu-sun6i-a31.c
--- linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu-sun6i-a31.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu-sun6i-a31.c	2017-09-27 08:40:05.000000000 -0400
@@ -556,7 +556,7 @@ static SUNXI_CCU_M_WITH_MUX_GATE(lcd0_ch
 				 0x12c, 0, 4, 24, 3, BIT(31),
 				 CLK_SET_RATE_PARENT);
 static SUNXI_CCU_M_WITH_MUX_GATE(lcd1_ch1_clk, "lcd1-ch1", lcd_ch1_parents,
-				 0x12c, 0, 4, 24, 3, BIT(31),
+				 0x130, 0, 4, 24, 3, BIT(31),
 				 CLK_SET_RATE_PARENT);
 
 static const char * const csi_sclk_parents[] = { "pll-video0", "pll-video1",
@@ -608,7 +608,7 @@ static SUNXI_CCU_M_WITH_MUX_GATE(hdmi_cl
 				 0x150, 0, 4, 24, 2, BIT(31),
 				 CLK_SET_RATE_PARENT);
 
-static SUNXI_CCU_GATE(hdmi_ddc_clk, "hdmi-ddc", "osc24M", 0x150, BIT(31), 0);
+static SUNXI_CCU_GATE(hdmi_ddc_clk, "hdmi-ddc", "osc24M", 0x150, BIT(30), 0);
 
 static SUNXI_CCU_GATE(ps_clk, "ps", "lcd1-ch1", 0x140, BIT(31), 0);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu-sun8i-a23.c linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu-sun8i-a23.c
--- linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu-sun8i-a23.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu-sun8i-a23.c	2017-09-27 08:40:05.000000000 -0400
@@ -344,10 +344,10 @@ static SUNXI_CCU_MP_WITH_MUX_GATE(spi1_c
 static const char * const i2s_parents[] = { "pll-audio-8x", "pll-audio-4x",
 					    "pll-audio-2x", "pll-audio" };
 static SUNXI_CCU_MUX_WITH_GATE(i2s0_clk, "i2s0", i2s_parents,
-			       0x0b0, 16, 2, BIT(31), 0);
+			       0x0b0, 16, 2, BIT(31), CLK_SET_RATE_PARENT);
 
 static SUNXI_CCU_MUX_WITH_GATE(i2s1_clk, "i2s1", i2s_parents,
-			       0x0b4, 16, 2, BIT(31), 0);
+			       0x0b4, 16, 2, BIT(31), CLK_SET_RATE_PARENT);
 
 /* TODO: the parent for most of the USB clocks is not known */
 static SUNXI_CCU_GATE(usb_phy0_clk,	"usb-phy0",	"osc24M",
@@ -415,7 +415,7 @@ static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve
 			     0x13c, 16, 3, BIT(31), CLK_SET_RATE_PARENT);
 
 static SUNXI_CCU_GATE(ac_dig_clk,	"ac-dig",	"pll-audio",
-		      0x140, BIT(31), 0);
+		      0x140, BIT(31), CLK_SET_RATE_PARENT);
 static SUNXI_CCU_GATE(avs_clk,		"avs",		"osc24M",
 		      0x144, BIT(31), 0);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu-sun8i-h3.c linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu-sun8i-h3.c
--- linux-libre-4.9-gnu/drivers/clk/sunxi-ng/ccu-sun8i-h3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/sunxi-ng/ccu-sun8i-h3.c	2017-09-27 08:40:05.000000000 -0400
@@ -394,16 +394,16 @@ static SUNXI_CCU_MP_WITH_MUX_GATE(spi1_c
 static const char * const i2s_parents[] = { "pll-audio-8x", "pll-audio-4x",
 					    "pll-audio-2x", "pll-audio" };
 static SUNXI_CCU_MUX_WITH_GATE(i2s0_clk, "i2s0", i2s_parents,
-			       0x0b0, 16, 2, BIT(31), 0);
+			       0x0b0, 16, 2, BIT(31), CLK_SET_RATE_PARENT);
 
 static SUNXI_CCU_MUX_WITH_GATE(i2s1_clk, "i2s1", i2s_parents,
-			       0x0b4, 16, 2, BIT(31), 0);
+			       0x0b4, 16, 2, BIT(31), CLK_SET_RATE_PARENT);
 
 static SUNXI_CCU_MUX_WITH_GATE(i2s2_clk, "i2s2", i2s_parents,
-			       0x0b8, 16, 2, BIT(31), 0);
+			       0x0b8, 16, 2, BIT(31), CLK_SET_RATE_PARENT);
 
 static SUNXI_CCU_M_WITH_GATE(spdif_clk, "spdif", "pll-audio",
-			     0x0c0, 0, 4, BIT(31), 0);
+			     0x0c0, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
 
 static SUNXI_CCU_GATE(usb_phy0_clk,	"usb-phy0",	"osc24M",
 		      0x0cc, BIT(8), 0);
@@ -466,7 +466,7 @@ static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve
 			     0x13c, 16, 3, BIT(31), 0);
 
 static SUNXI_CCU_GATE(ac_dig_clk,	"ac-dig",	"pll-audio",
-		      0x140, BIT(31), 0);
+		      0x140, BIT(31), CLK_SET_RATE_PARENT);
 static SUNXI_CCU_GATE(avs_clk,		"avs",		"osc24M",
 		      0x144, BIT(31), 0);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/ti/clk-3xxx.c linux-libre-4.9.52-gnu/drivers/clk/ti/clk-3xxx.c
--- linux-libre-4.9-gnu/drivers/clk/ti/clk-3xxx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/ti/clk-3xxx.c	2017-09-27 08:40:05.000000000 -0400
@@ -22,13 +22,6 @@
 
 #include "clock.h"
 
-/*
- * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
- * that are sourced by DPLL5, and both of these require this clock
- * to be at 120 MHz for proper operation.
- */
-#define DPLL5_FREQ_FOR_USBHOST		120000000
-
 #define OMAP3430ES2_ST_DSS_IDLE_SHIFT			1
 #define OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT		5
 #define OMAP3430ES2_ST_SSI_IDLE_SHIFT			8
@@ -546,14 +539,21 @@ void __init omap3_clk_lock_dpll5(void)
 	struct clk *dpll5_clk;
 	struct clk *dpll5_m2_clk;
 
+	/*
+	 * Errata sprz319f advisory 2.1 documents a USB host clock drift issue
+	 * that can be worked around using specially crafted dpll5 settings
+	 * with a dpll5_m2 divider set to 8. Set the dpll5 rate to 8x the USB
+	 * host clock rate, its .set_rate handler() will detect that frequency
+	 * and use the errata settings.
+	 */
 	dpll5_clk = clk_get(NULL, "dpll5_ck");
-	clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST);
+	clk_set_rate(dpll5_clk, OMAP3_DPLL5_FREQ_FOR_USBHOST * 8);
 	clk_prepare_enable(dpll5_clk);
 
-	/* Program dpll5_m2_clk divider for no division */
+	/* Program dpll5_m2_clk divider */
 	dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck");
 	clk_prepare_enable(dpll5_m2_clk);
-	clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST);
+	clk_set_rate(dpll5_m2_clk, OMAP3_DPLL5_FREQ_FOR_USBHOST);
 
 	clk_disable_unprepare(dpll5_m2_clk);
 	clk_disable_unprepare(dpll5_clk);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/ti/clk-7xx.c linux-libre-4.9.52-gnu/drivers/clk/ti/clk-7xx.c
--- linux-libre-4.9-gnu/drivers/clk/ti/clk-7xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/ti/clk-7xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -201,7 +201,6 @@ static struct ti_dt_clk dra7xx_clks[] =
 	DT_CLK(NULL, "atl_dpll_clk_mux", "atl_dpll_clk_mux"),
 	DT_CLK(NULL, "atl_gfclk_mux", "atl_gfclk_mux"),
 	DT_CLK(NULL, "dcan1_sys_clk_mux", "dcan1_sys_clk_mux"),
-	DT_CLK(NULL, "gmac_gmii_ref_clk_div", "gmac_gmii_ref_clk_div"),
 	DT_CLK(NULL, "gmac_rft_clk_mux", "gmac_rft_clk_mux"),
 	DT_CLK(NULL, "gpu_core_gclk_mux", "gpu_core_gclk_mux"),
 	DT_CLK(NULL, "gpu_hyd_gclk_mux", "gpu_hyd_gclk_mux"),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/ti/clock.h linux-libre-4.9.52-gnu/drivers/clk/ti/clock.h
--- linux-libre-4.9-gnu/drivers/clk/ti/clock.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/ti/clock.h	2017-09-27 08:40:05.000000000 -0400
@@ -257,11 +257,20 @@ long omap2_dpll_round_rate(struct clk_hw
 unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw,
 				    unsigned long parent_rate);
 
+/*
+ * OMAP3_DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks
+ * that are sourced by DPLL5, and both of these require this clock
+ * to be at 120 MHz for proper operation.
+ */
+#define OMAP3_DPLL5_FREQ_FOR_USBHOST	120000000
+
 unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate);
 int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate,
 			 unsigned long parent_rate);
 int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
 				    unsigned long parent_rate, u8 index);
+int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
+			 unsigned long parent_rate);
 void omap3_clk_lock_dpll5(void);
 
 unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/ti/dpll3xxx.c linux-libre-4.9.52-gnu/drivers/clk/ti/dpll3xxx.c
--- linux-libre-4.9-gnu/drivers/clk/ti/dpll3xxx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/ti/dpll3xxx.c	2017-09-27 08:40:05.000000000 -0400
@@ -838,3 +838,70 @@ int omap3_dpll4_set_rate_and_parent(stru
 	return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate,
 						      index);
 }
+
+/* Apply DM3730 errata sprz319 advisory 2.1. */
+static bool omap3_dpll5_apply_errata(struct clk_hw *hw,
+				     unsigned long parent_rate)
+{
+	struct omap3_dpll5_settings {
+		unsigned int rate, m, n;
+	};
+
+	static const struct omap3_dpll5_settings precomputed[] = {
+		/*
+		 * From DM3730 errata advisory 2.1, table 35 and 36.
+		 * The N value is increased by 1 compared to the tables as the
+		 * errata lists register values while last_rounded_field is the
+		 * real divider value.
+		 */
+		{ 12000000,  80,  0 + 1 },
+		{ 13000000, 443,  5 + 1 },
+		{ 19200000,  50,  0 + 1 },
+		{ 26000000, 443, 11 + 1 },
+		{ 38400000,  25,  0 + 1 }
+	};
+
+	const struct omap3_dpll5_settings *d;
+	struct clk_hw_omap *clk = to_clk_hw_omap(hw);
+	struct dpll_data *dd;
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(precomputed); ++i) {
+		if (parent_rate == precomputed[i].rate)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(precomputed))
+		return false;
+
+	d = &precomputed[i];
+
+	/* Update the M, N and rounded rate values and program the DPLL. */
+	dd = clk->dpll_data;
+	dd->last_rounded_m = d->m;
+	dd->last_rounded_n = d->n;
+	dd->last_rounded_rate = div_u64((u64)parent_rate * d->m, d->n);
+	omap3_noncore_dpll_program(clk, 0);
+
+	return true;
+}
+
+/**
+ * omap3_dpll5_set_rate - set rate for omap3 dpll5
+ * @hw: clock to change
+ * @rate: target rate for clock
+ * @parent_rate: rate of the parent clock
+ *
+ * Set rate for the DPLL5 clock. Apply the sprz319 advisory 2.1 on OMAP36xx if
+ * the DPLL is used for USB host (detected through the requested rate).
+ */
+int omap3_dpll5_set_rate(struct clk_hw *hw, unsigned long rate,
+			 unsigned long parent_rate)
+{
+	if (rate == OMAP3_DPLL5_FREQ_FOR_USBHOST * 8) {
+		if (omap3_dpll5_apply_errata(hw, parent_rate))
+			return 0;
+	}
+
+	return omap3_noncore_dpll_set_rate(hw, rate, parent_rate);
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clk/ti/dpll.c linux-libre-4.9.52-gnu/drivers/clk/ti/dpll.c
--- linux-libre-4.9-gnu/drivers/clk/ti/dpll.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clk/ti/dpll.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,6 +114,18 @@ static const struct clk_ops omap3_dpll_c
 	.round_rate	= &omap2_dpll_round_rate,
 };
 
+static const struct clk_ops omap3_dpll5_ck_ops = {
+	.enable		= &omap3_noncore_dpll_enable,
+	.disable	= &omap3_noncore_dpll_disable,
+	.get_parent	= &omap2_init_dpll_parent,
+	.recalc_rate	= &omap3_dpll_recalc,
+	.set_rate	= &omap3_dpll5_set_rate,
+	.set_parent	= &omap3_noncore_dpll_set_parent,
+	.set_rate_and_parent	= &omap3_noncore_dpll_set_rate_and_parent,
+	.determine_rate	= &omap3_noncore_dpll_determine_rate,
+	.round_rate	= &omap2_dpll_round_rate,
+};
+
 static const struct clk_ops omap3_dpll_per_ck_ops = {
 	.enable		= &omap3_noncore_dpll_enable,
 	.disable	= &omap3_noncore_dpll_disable,
@@ -474,7 +486,12 @@ static void __init of_ti_omap3_dpll_setu
 		.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
 	};
 
-	of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
+	if ((of_machine_is_compatible("ti,omap3630") ||
+	     of_machine_is_compatible("ti,omap36xx")) &&
+	    !strcmp(node->name, "dpll5_ck"))
+		of_ti_dpll_setup(node, &omap3_dpll5_ck_ops, &dd);
+	else
+		of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
 }
 CLK_OF_DECLARE(ti_omap3_dpll_clock, "ti,omap3-dpll-clock",
 	       of_ti_omap3_dpll_setup);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clocksource/arm_arch_timer.c linux-libre-4.9.52-gnu/drivers/clocksource/arm_arch_timer.c
--- linux-libre-4.9-gnu/drivers/clocksource/arm_arch_timer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clocksource/arm_arch_timer.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,6 +81,7 @@ static struct clock_event_device __percp
 static enum ppi_nr arch_timer_uses_ppi = VIRT_PPI;
 static bool arch_timer_c3stop;
 static bool arch_timer_mem_use_virtual;
+static bool arch_counter_suspend_stop;
 
 static bool evtstrm_enable = IS_ENABLED(CONFIG_ARM_ARCH_TIMER_EVTSTREAM);
 
@@ -576,7 +577,7 @@ static struct clocksource clocksource_co
 	.rating	= 400,
 	.read	= arch_counter_read,
 	.mask	= CLOCKSOURCE_MASK(56),
-	.flags	= CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_SUSPEND_NONSTOP,
+	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
 static struct cyclecounter cyclecounter = {
@@ -616,6 +617,8 @@ static void __init arch_counter_register
 		arch_timer_read_counter = arch_counter_get_cntvct_mem;
 	}
 
+	if (!arch_counter_suspend_stop)
+		clocksource_counter.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP;
 	start_count = arch_timer_read_counter();
 	clocksource_register_hz(&clocksource_counter, arch_timer_rate);
 	cyclecounter.mult = clocksource_counter.mult;
@@ -907,6 +910,10 @@ static int __init arch_timer_of_init(str
 	    of_property_read_bool(np, "arm,cpu-registers-not-fw-configured"))
 		arch_timer_uses_ppi = PHYS_SECURE_PPI;
 
+	/* On some systems, the counter stops ticking when in suspend. */
+	arch_counter_suspend_stop = of_property_read_bool(np,
+							 "arm,no-tick-in-suspend");
+
 	return arch_timer_init();
 }
 CLOCKSOURCE_OF_DECLARE(armv7_arch_timer, "arm,armv7-timer", arch_timer_of_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/clocksource/exynos_mct.c linux-libre-4.9.52-gnu/drivers/clocksource/exynos_mct.c
--- linux-libre-4.9-gnu/drivers/clocksource/exynos_mct.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/clocksource/exynos_mct.c	2017-09-27 08:40:05.000000000 -0400
@@ -495,6 +495,7 @@ static int exynos4_mct_dying_cpu(unsigne
 	if (mct_int_type == MCT_INT_SPI) {
 		if (evt->irq != -1)
 			disable_irq_nosync(evt->irq);
+		exynos4_mct_write(0x1, mevt->base + MCT_L_INT_CSTAT_OFFSET);
 	} else {
 		disable_percpu_irq(mct_irqs[MCT_L0_IRQ]);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/cpufreq/cpufreq.c linux-libre-4.9.52-gnu/drivers/cpufreq/cpufreq.c
--- linux-libre-4.9-gnu/drivers/cpufreq/cpufreq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/cpufreq/cpufreq.c	2017-09-27 08:40:05.000000000 -0400
@@ -680,9 +680,11 @@ static ssize_t show_cpuinfo_cur_freq(str
 					char *buf)
 {
 	unsigned int cur_freq = __cpufreq_get(policy);
-	if (!cur_freq)
-		return sprintf(buf, "<unknown>");
-	return sprintf(buf, "%u\n", cur_freq);
+
+	if (cur_freq)
+		return sprintf(buf, "%u\n", cur_freq);
+
+	return sprintf(buf, "<unknown>\n");
 }
 
 /**
@@ -1188,6 +1190,9 @@ static int cpufreq_online(unsigned int c
 		for_each_cpu(j, policy->related_cpus)
 			per_cpu(cpufreq_cpu_data, j) = policy;
 		write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+	} else {
+		policy->min = policy->user_policy.min;
+		policy->max = policy->user_policy.max;
 	}
 
 	if (cpufreq_driver->get && !cpufreq_driver->setpolicy) {
@@ -2399,6 +2404,20 @@ EXPORT_SYMBOL_GPL(cpufreq_boost_enabled)
  *********************************************************************/
 static enum cpuhp_state hp_online;
 
+static int cpuhp_cpufreq_online(unsigned int cpu)
+{
+	cpufreq_online(cpu);
+
+	return 0;
+}
+
+static int cpuhp_cpufreq_offline(unsigned int cpu)
+{
+	cpufreq_offline(cpu);
+
+	return 0;
+}
+
 /**
  * cpufreq_register_driver - register a CPU Frequency driver
  * @driver_data: A struct cpufreq_driver containing the values#
@@ -2455,14 +2474,15 @@ int cpufreq_register_driver(struct cpufr
 	if (!(cpufreq_driver->flags & CPUFREQ_STICKY) &&
 	    list_empty(&cpufreq_policy_list)) {
 		/* if all ->init() calls failed, unregister */
+		ret = -ENODEV;
 		pr_debug("%s: No CPU initialized for driver %s\n", __func__,
 			 driver_data->name);
 		goto err_if_unreg;
 	}
 
 	ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "cpufreq:online",
-					cpufreq_online,
-					cpufreq_offline);
+					cpuhp_cpufreq_online,
+					cpuhp_cpufreq_offline);
 	if (ret < 0)
 		goto err_if_unreg;
 	hp_online = ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/cpufreq/cpufreq_conservative.c linux-libre-4.9.52-gnu/drivers/cpufreq/cpufreq_conservative.c
--- linux-libre-4.9-gnu/drivers/cpufreq/cpufreq_conservative.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/cpufreq/cpufreq_conservative.c	2017-09-27 08:40:05.000000000 -0400
@@ -169,8 +169,8 @@ static ssize_t store_down_threshold(stru
 	int ret;
 	ret = sscanf(buf, "%u", &input);
 
-	/* cannot be lower than 11 otherwise freq will not fall */
-	if (ret != 1 || input < 11 || input > 100 ||
+	/* cannot be lower than 1 otherwise freq will not fall */
+	if (ret != 1 || input < 1 || input > 100 ||
 			input >= dbs_data->up_threshold)
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/cpufreq/cpufreq-dt.c linux-libre-4.9.52-gnu/drivers/cpufreq/cpufreq-dt.c
--- linux-libre-4.9-gnu/drivers/cpufreq/cpufreq-dt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/cpufreq/cpufreq-dt.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,6 +28,7 @@
 #include "cpufreq-dt.h"
 
 struct private_data {
+	struct opp_table *opp_table;
 	struct device *cpu_dev;
 	struct thermal_cooling_device *cdev;
 	const char *reg_name;
@@ -143,6 +144,7 @@ static int resources_available(void)
 static int cpufreq_init(struct cpufreq_policy *policy)
 {
 	struct cpufreq_frequency_table *freq_table;
+	struct opp_table *opp_table = NULL;
 	struct private_data *priv;
 	struct device *cpu_dev;
 	struct clk *cpu_clk;
@@ -186,8 +188,9 @@ static int cpufreq_init(struct cpufreq_p
 	 */
 	name = find_supply_name(cpu_dev);
 	if (name) {
-		ret = dev_pm_opp_set_regulator(cpu_dev, name);
-		if (ret) {
+		opp_table = dev_pm_opp_set_regulator(cpu_dev, name);
+		if (IS_ERR(opp_table)) {
+			ret = PTR_ERR(opp_table);
 			dev_err(cpu_dev, "Failed to set regulator for cpu%d: %d\n",
 				policy->cpu, ret);
 			goto out_put_clk;
@@ -237,6 +240,7 @@ static int cpufreq_init(struct cpufreq_p
 	}
 
 	priv->reg_name = name;
+	priv->opp_table = opp_table;
 
 	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
 	if (ret) {
@@ -285,7 +289,7 @@ out_free_priv:
 out_free_opp:
 	dev_pm_opp_of_cpumask_remove_table(policy->cpus);
 	if (name)
-		dev_pm_opp_put_regulator(cpu_dev);
+		dev_pm_opp_put_regulator(opp_table);
 out_put_clk:
 	clk_put(cpu_clk);
 
@@ -300,7 +304,7 @@ static int cpufreq_exit(struct cpufreq_p
 	dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);
 	dev_pm_opp_of_cpumask_remove_table(policy->related_cpus);
 	if (priv->reg_name)
-		dev_pm_opp_put_regulator(priv->cpu_dev);
+		dev_pm_opp_put_regulator(priv->opp_table);
 
 	clk_put(policy->clk);
 	kfree(priv);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/cpufreq/intel_pstate.c linux-libre-4.9.52-gnu/drivers/cpufreq/intel_pstate.c
--- linux-libre-4.9-gnu/drivers/cpufreq/intel_pstate.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/cpufreq/intel_pstate.c	2017-09-27 08:40:05.000000000 -0400
@@ -820,6 +820,25 @@ static void intel_pstate_hwp_enable(stru
 	wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1);
 }
 
+#define MSR_IA32_POWER_CTL_BIT_EE	19
+
+/* Disable energy efficiency optimization */
+static void intel_pstate_disable_ee(int cpu)
+{
+	u64 power_ctl;
+	int ret;
+
+	ret = rdmsrl_on_cpu(cpu, MSR_IA32_POWER_CTL, &power_ctl);
+	if (ret)
+		return;
+
+	if (!(power_ctl & BIT(MSR_IA32_POWER_CTL_BIT_EE))) {
+		pr_info("Disabling energy efficiency optimization\n");
+		power_ctl |= BIT(MSR_IA32_POWER_CTL_BIT_EE);
+		wrmsrl_on_cpu(cpu, MSR_IA32_POWER_CTL, power_ctl);
+	}
+}
+
 static int atom_get_min_pstate(void)
 {
 	u64 value;
@@ -1420,6 +1439,11 @@ static const struct x86_cpu_id intel_pst
 	{}
 };
 
+static const struct x86_cpu_id intel_pstate_cpu_ee_disable_ids[] = {
+	ICPU(INTEL_FAM6_KABYLAKE_DESKTOP, core_params),
+	{}
+};
+
 static int intel_pstate_init_cpu(unsigned int cpunum)
 {
 	struct cpudata *cpu;
@@ -1435,6 +1459,12 @@ static int intel_pstate_init_cpu(unsigne
 	cpu->cpu = cpunum;
 
 	if (hwp_active) {
+		const struct x86_cpu_id *id;
+
+		id = x86_match_cpu(intel_pstate_cpu_ee_disable_ids);
+		if (id)
+			intel_pstate_disable_ee(cpunum);
+
 		intel_pstate_hwp_enable(cpu);
 		pid_params.sample_rate_ms = 50;
 		pid_params.sample_rate_ns = 50 * NSEC_PER_MSEC;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/cpufreq/powernv-cpufreq.c linux-libre-4.9.52-gnu/drivers/cpufreq/powernv-cpufreq.c
--- linux-libre-4.9-gnu/drivers/cpufreq/powernv-cpufreq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/cpufreq/powernv-cpufreq.c	2017-09-27 08:40:05.000000000 -0400
@@ -647,8 +647,14 @@ static int powernv_cpufreq_target_index(
 	if (unlikely(rebooting) && new_index != get_nominal_index())
 		return 0;
 
-	if (!throttled)
+	if (!throttled) {
+		/* we don't want to be preempted while
+		 * checking if the CPU frequency has been throttled
+		 */
+		preempt_disable();
 		powernv_cpufreq_throttle_check(NULL);
+		preempt_enable();
+	}
 
 	cur_msec = jiffies_to_msecs(get_jiffies_64());
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/cpufreq/s3c2416-cpufreq.c linux-libre-4.9.52-gnu/drivers/cpufreq/s3c2416-cpufreq.c
--- linux-libre-4.9-gnu/drivers/cpufreq/s3c2416-cpufreq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/cpufreq/s3c2416-cpufreq.c	2017-09-27 08:40:05.000000000 -0400
@@ -400,7 +400,6 @@ static int s3c2416_cpufreq_driver_init(s
 	rate = clk_get_rate(s3c_freq->hclk);
 	if (rate < 133 * 1000 * 1000) {
 		pr_err("cpufreq: HCLK not at 133MHz\n");
-		clk_put(s3c_freq->hclk);
 		ret = -EINVAL;
 		goto err_armclk;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/atmel-sha.c linux-libre-4.9.52-gnu/drivers/crypto/atmel-sha.c
--- linux-libre-4.9-gnu/drivers/crypto/atmel-sha.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/atmel-sha.c	2017-09-27 08:40:05.000000000 -0400
@@ -1000,7 +1000,9 @@ static int atmel_sha_finup(struct ahash_
 	ctx->flags |= SHA_FLAGS_FINUP;
 
 	err1 = atmel_sha_update(req);
-	if (err1 == -EINPROGRESS || err1 == -EBUSY)
+	if (err1 == -EINPROGRESS ||
+	    (err1 == -EBUSY && (ahash_request_flags(req) &
+				CRYPTO_TFM_REQ_MAY_BACKLOG)))
 		return err1;
 
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/caam/caamalg.c linux-libre-4.9.52-gnu/drivers/crypto/caam/caamalg.c
--- linux-libre-4.9-gnu/drivers/crypto/caam/caamalg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/caam/caamalg.c	2017-09-27 08:40:05.000000000 -0400
@@ -736,7 +736,9 @@ copy_iv:
 
 	/* Will read cryptlen */
 	append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
-	aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
+	append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH | KEY_VLF |
+			     FIFOLD_TYPE_MSG1OUT2 | FIFOLD_TYPE_LASTBOTH);
+	append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
 
 	/* Write ICV */
 	append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
@@ -2012,10 +2014,10 @@ static void ablkcipher_encrypt_done(stru
 {
 	struct ablkcipher_request *req = context;
 	struct ablkcipher_edesc *edesc;
-#ifdef DEBUG
 	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
 	int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 
+#ifdef DEBUG
 	dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
 #endif
 
@@ -2035,6 +2037,14 @@ static void ablkcipher_encrypt_done(stru
 #endif
 
 	ablkcipher_unmap(jrdev, edesc, req);
+
+	/*
+	 * The crypto API expects us to set the IV (req->info) to the last
+	 * ciphertext block. This is used e.g. by the CTS mode.
+	 */
+	scatterwalk_map_and_copy(req->info, req->dst, req->nbytes - ivsize,
+				 ivsize, 0);
+
 	kfree(edesc);
 
 	ablkcipher_request_complete(req, err);
@@ -2045,10 +2055,10 @@ static void ablkcipher_decrypt_done(stru
 {
 	struct ablkcipher_request *req = context;
 	struct ablkcipher_edesc *edesc;
-#ifdef DEBUG
 	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
 	int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
 
+#ifdef DEBUG
 	dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
 #endif
 
@@ -2067,6 +2077,14 @@ static void ablkcipher_decrypt_done(stru
 #endif
 
 	ablkcipher_unmap(jrdev, edesc, req);
+
+	/*
+	 * The crypto API expects us to set the IV (req->info) to the last
+	 * ciphertext block.
+	 */
+	scatterwalk_map_and_copy(req->info, req->src, req->nbytes - ivsize,
+				 ivsize, 0);
+
 	kfree(edesc);
 
 	ablkcipher_request_complete(req, err);
@@ -2599,8 +2617,7 @@ static struct ablkcipher_edesc *ablkciph
 	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
 	struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
 	struct device *jrdev = ctx->jrdev;
-	gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
-					  CRYPTO_TFM_REQ_MAY_SLEEP)) ?
+	gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
 		       GFP_KERNEL : GFP_ATOMIC;
 	int src_nents, dst_nents = 0, sec4_sg_bytes;
 	struct ablkcipher_edesc *edesc;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/caam/caamhash.c linux-libre-4.9.52-gnu/drivers/crypto/caam/caamhash.c
--- linux-libre-4.9-gnu/drivers/crypto/caam/caamhash.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/caam/caamhash.c	2017-09-27 08:40:05.000000000 -0400
@@ -154,6 +154,7 @@ static inline int map_seq_out_ptr_ctx(u3
 					ctx_len, DMA_FROM_DEVICE);
 	if (dma_mapping_error(jrdev, state->ctx_dma)) {
 		dev_err(jrdev, "unable to map ctx\n");
+		state->ctx_dma = 0;
 		return -ENOMEM;
 	}
 
@@ -214,6 +215,7 @@ static inline int ctx_map_to_sec4_sg(u32
 	state->ctx_dma = dma_map_single(jrdev, state->caam_ctx, ctx_len, flag);
 	if (dma_mapping_error(jrdev, state->ctx_dma)) {
 		dev_err(jrdev, "unable to map ctx\n");
+		state->ctx_dma = 0;
 		return -ENOMEM;
 	}
 
@@ -489,7 +491,7 @@ static int hash_digest_key(struct caam_h
 	ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
 	if (!ret) {
 		/* in progress */
-		wait_for_completion_interruptible(&result.completion);
+		wait_for_completion(&result.completion);
 		ret = result.err;
 #ifdef DEBUG
 		print_hex_dump(KERN_ERR,
@@ -620,8 +622,10 @@ static inline void ahash_unmap_ctx(struc
 	struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
 	struct caam_hash_state *state = ahash_request_ctx(req);
 
-	if (state->ctx_dma)
+	if (state->ctx_dma) {
 		dma_unmap_single(dev, state->ctx_dma, ctx->ctx_len, flag);
+		state->ctx_dma = 0;
+	}
 	ahash_unmap(dev, edesc, req, dst_len);
 }
 
@@ -1605,6 +1609,7 @@ static int ahash_init(struct ahash_reque
 	state->finup = ahash_finup_first;
 	state->final = ahash_final_no_ctx;
 
+	state->ctx_dma = 0;
 	state->current_buf = 0;
 	state->buf_dma = 0;
 	state->buflen_0 = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/caam/caampkc.c linux-libre-4.9.52-gnu/drivers/crypto/caam/caampkc.c
--- linux-libre-4.9-gnu/drivers/crypto/caam/caampkc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/caam/caampkc.c	2017-09-27 08:40:05.000000000 -0400
@@ -506,7 +506,7 @@ static int caam_rsa_init_tfm(struct cryp
 	ctx->dev = caam_jr_alloc();
 
 	if (IS_ERR(ctx->dev)) {
-		dev_err(ctx->dev, "Job Ring Device allocation for transform failed\n");
+		pr_err("Job Ring Device allocation for transform failed\n");
 		return PTR_ERR(ctx->dev);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/caam/ctrl.c linux-libre-4.9.52-gnu/drivers/crypto/caam/ctrl.c
--- linux-libre-4.9-gnu/drivers/crypto/caam/ctrl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/caam/ctrl.c	2017-09-27 08:40:05.000000000 -0400
@@ -282,7 +282,8 @@ static int deinstantiate_rng(struct devi
 			/* Try to run it through DECO0 */
 			ret = run_descriptor_deco0(ctrldev, desc, &status);
 
-			if (ret || status) {
+			if (ret ||
+			    (status && status != JRSTA_SSRC_JUMP_HALT_CC)) {
 				dev_err(ctrldev,
 					"Failed to deinstantiate RNG4 SH%d\n",
 					sh_idx);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/caam/key_gen.c linux-libre-4.9.52-gnu/drivers/crypto/caam/key_gen.c
--- linux-libre-4.9-gnu/drivers/crypto/caam/key_gen.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/caam/key_gen.c	2017-09-27 08:40:05.000000000 -0400
@@ -103,7 +103,7 @@ int gen_split_key(struct device *jrdev,
 	ret = caam_jr_enqueue(jrdev, desc, split_key_done, &result);
 	if (!ret) {
 		/* in progress */
-		wait_for_completion_interruptible(&result.completion);
+		wait_for_completion(&result.completion);
 		ret = result.err;
 #ifdef DEBUG
 		print_hex_dump(KERN_ERR, "ctx.key@"__stringify(__LINE__)": ",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-crypto-aes-xts.c	2017-09-27 08:40:05.000000000 -0400
@@ -1,8 +1,9 @@
 /*
  * AMD Cryptographic Coprocessor (CCP) AES XTS crypto API support
  *
- * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ * Copyright (C) 2013,2017 Advanced Micro Devices, Inc.
  *
+ * Author: Gary R Hook <gary.hook@amd.com>
  * Author: Tom Lendacky <thomas.lendacky@amd.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -164,6 +165,7 @@ static int ccp_aes_xts_crypt(struct ablk
 	memset(&rctx->cmd, 0, sizeof(rctx->cmd));
 	INIT_LIST_HEAD(&rctx->cmd.entry);
 	rctx->cmd.engine = CCP_ENGINE_XTS_AES_128;
+	rctx->cmd.u.xts.type = CCP_AES_TYPE_128;
 	rctx->cmd.u.xts.action = (encrypt) ? CCP_AES_ACTION_ENCRYPT
 					   : CCP_AES_ACTION_DECRYPT;
 	rctx->cmd.u.xts.unit_size = unit_size;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev.c linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev.c
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -283,11 +283,14 @@ EXPORT_SYMBOL_GPL(ccp_version);
  */
 int ccp_enqueue_cmd(struct ccp_cmd *cmd)
 {
-	struct ccp_device *ccp = ccp_get_device();
+	struct ccp_device *ccp;
 	unsigned long flags;
 	unsigned int i;
 	int ret;
 
+	/* Some commands might need to be sent to a specific device */
+	ccp = cmd->ccp ? cmd->ccp : ccp_get_device();
+
 	if (!ccp)
 		return -ENODEV;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev.h linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev.h
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev.h	2017-09-27 08:40:05.000000000 -0400
@@ -109,9 +109,8 @@
 #define INT_COMPLETION			0x1
 #define INT_ERROR			0x2
 #define INT_QUEUE_STOPPED		0x4
-#define ALL_INTERRUPTS			(INT_COMPLETION| \
-					 INT_ERROR| \
-					 INT_QUEUE_STOPPED)
+#define	INT_EMPTY_QUEUE			0x8
+#define SUPPORTED_INTERRUPTS		(INT_COMPLETION | INT_ERROR)
 
 #define LSB_REGION_WIDTH		5
 #define MAX_LSB_CNT			8
@@ -188,6 +187,7 @@
 #define CCP_AES_CTX_SB_COUNT		1
 
 #define CCP_XTS_AES_KEY_SB_COUNT	1
+#define CCP5_XTS_AES_KEY_SB_COUNT	2
 #define CCP_XTS_AES_CTX_SB_COUNT	1
 
 #define CCP_SHA_SB_COUNT		1
@@ -238,6 +238,7 @@ struct ccp_dma_chan {
 	struct ccp_device *ccp;
 
 	spinlock_t lock;
+	struct list_head created;
 	struct list_head pending;
 	struct list_head active;
 	struct list_head complete;
@@ -332,7 +333,10 @@ struct ccp_device {
 	void *dev_specific;
 	int (*get_irq)(struct ccp_device *ccp);
 	void (*free_irq)(struct ccp_device *ccp);
+	unsigned int qim;
 	unsigned int irq;
+	bool use_tasklet;
+	struct tasklet_struct irq_tasklet;
 
 	/* I/O area used for device communication. The register mapping
 	 * starts at an offset into the mapped bar.
@@ -469,6 +473,7 @@ struct ccp_aes_op {
 };
 
 struct ccp_xts_aes_op {
+	enum ccp_aes_type type;
 	enum ccp_aes_action action;
 	enum ccp_xts_aes_unit_size unit_size;
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev-v3.c linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev-v3.c
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev-v3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev-v3.c	2017-09-27 08:40:05.000000000 -0400
@@ -315,17 +315,73 @@ static int ccp_perform_ecc(struct ccp_op
 	return ccp_do_cmd(op, cr, ARRAY_SIZE(cr));
 }
 
+static void ccp_disable_queue_interrupts(struct ccp_device *ccp)
+{
+	iowrite32(0x00, ccp->io_regs + IRQ_MASK_REG);
+}
+
+static void ccp_enable_queue_interrupts(struct ccp_device *ccp)
+{
+	iowrite32(ccp->qim, ccp->io_regs + IRQ_MASK_REG);
+}
+
+static void ccp_irq_bh(unsigned long data)
+{
+	struct ccp_device *ccp = (struct ccp_device *)data;
+	struct ccp_cmd_queue *cmd_q;
+	u32 q_int, status;
+	unsigned int i;
+
+	status = ioread32(ccp->io_regs + IRQ_STATUS_REG);
+
+	for (i = 0; i < ccp->cmd_q_count; i++) {
+		cmd_q = &ccp->cmd_q[i];
+
+		q_int = status & (cmd_q->int_ok | cmd_q->int_err);
+		if (q_int) {
+			cmd_q->int_status = status;
+			cmd_q->q_status = ioread32(cmd_q->reg_status);
+			cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
+
+			/* On error, only save the first error value */
+			if ((q_int & cmd_q->int_err) && !cmd_q->cmd_error)
+				cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
+
+			cmd_q->int_rcvd = 1;
+
+			/* Acknowledge the interrupt and wake the kthread */
+			iowrite32(q_int, ccp->io_regs + IRQ_STATUS_REG);
+			wake_up_interruptible(&cmd_q->int_queue);
+		}
+	}
+	ccp_enable_queue_interrupts(ccp);
+}
+
+static irqreturn_t ccp_irq_handler(int irq, void *data)
+{
+	struct device *dev = data;
+	struct ccp_device *ccp = dev_get_drvdata(dev);
+
+	ccp_disable_queue_interrupts(ccp);
+	if (ccp->use_tasklet)
+		tasklet_schedule(&ccp->irq_tasklet);
+	else
+		ccp_irq_bh((unsigned long)ccp);
+
+	return IRQ_HANDLED;
+}
+
 static int ccp_init(struct ccp_device *ccp)
 {
 	struct device *dev = ccp->dev;
 	struct ccp_cmd_queue *cmd_q;
 	struct dma_pool *dma_pool;
 	char dma_pool_name[MAX_DMAPOOL_NAME_LEN];
-	unsigned int qmr, qim, i;
+	unsigned int qmr, i;
 	int ret;
 
 	/* Find available queues */
-	qim = 0;
+	ccp->qim = 0;
 	qmr = ioread32(ccp->io_regs + Q_MASK_REG);
 	for (i = 0; i < MAX_HW_QUEUES; i++) {
 		if (!(qmr & (1 << i)))
@@ -370,7 +426,7 @@ static int ccp_init(struct ccp_device *c
 		init_waitqueue_head(&cmd_q->int_queue);
 
 		/* Build queue interrupt mask (two interrupts per queue) */
-		qim |= cmd_q->int_ok | cmd_q->int_err;
+		ccp->qim |= cmd_q->int_ok | cmd_q->int_err;
 
 #ifdef CONFIG_ARM64
 		/* For arm64 set the recommended queue cache settings */
@@ -388,14 +444,14 @@ static int ccp_init(struct ccp_device *c
 	dev_notice(dev, "%u command queues available\n", ccp->cmd_q_count);
 
 	/* Disable and clear interrupts until ready */
-	iowrite32(0x00, ccp->io_regs + IRQ_MASK_REG);
+	ccp_disable_queue_interrupts(ccp);
 	for (i = 0; i < ccp->cmd_q_count; i++) {
 		cmd_q = &ccp->cmd_q[i];
 
 		ioread32(cmd_q->reg_int_status);
 		ioread32(cmd_q->reg_status);
 	}
-	iowrite32(qim, ccp->io_regs + IRQ_STATUS_REG);
+	iowrite32(ccp->qim, ccp->io_regs + IRQ_STATUS_REG);
 
 	/* Request an irq */
 	ret = ccp->get_irq(ccp);
@@ -408,6 +464,11 @@ static int ccp_init(struct ccp_device *c
 	init_waitqueue_head(&ccp->sb_queue);
 	init_waitqueue_head(&ccp->suspend_queue);
 
+	/* Initialize the ISR tasklet? */
+	if (ccp->use_tasklet)
+		tasklet_init(&ccp->irq_tasklet, ccp_irq_bh,
+			     (unsigned long)ccp);
+
 	dev_dbg(dev, "Starting threads...\n");
 	/* Create a kthread for each queue */
 	for (i = 0; i < ccp->cmd_q_count; i++) {
@@ -430,7 +491,7 @@ static int ccp_init(struct ccp_device *c
 
 	dev_dbg(dev, "Enabling interrupts...\n");
 	/* Enable interrupts */
-	iowrite32(qim, ccp->io_regs + IRQ_MASK_REG);
+	ccp_enable_queue_interrupts(ccp);
 
 	dev_dbg(dev, "Registering device...\n");
 	ccp_add_device(ccp);
@@ -467,7 +528,7 @@ static void ccp_destroy(struct ccp_devic
 {
 	struct ccp_cmd_queue *cmd_q;
 	struct ccp_cmd *cmd;
-	unsigned int qim, i;
+	unsigned int i;
 
 	/* Unregister the DMA engine */
 	ccp_dmaengine_unregister(ccp);
@@ -478,22 +539,15 @@ static void ccp_destroy(struct ccp_devic
 	/* Remove this device from the list of available units */
 	ccp_del_device(ccp);
 
-	/* Build queue interrupt mask (two interrupt masks per queue) */
-	qim = 0;
-	for (i = 0; i < ccp->cmd_q_count; i++) {
-		cmd_q = &ccp->cmd_q[i];
-		qim |= cmd_q->int_ok | cmd_q->int_err;
-	}
-
 	/* Disable and clear interrupts */
-	iowrite32(0x00, ccp->io_regs + IRQ_MASK_REG);
+	ccp_disable_queue_interrupts(ccp);
 	for (i = 0; i < ccp->cmd_q_count; i++) {
 		cmd_q = &ccp->cmd_q[i];
 
 		ioread32(cmd_q->reg_int_status);
 		ioread32(cmd_q->reg_status);
 	}
-	iowrite32(qim, ccp->io_regs + IRQ_STATUS_REG);
+	iowrite32(ccp->qim, ccp->io_regs + IRQ_STATUS_REG);
 
 	/* Stop the queue kthreads */
 	for (i = 0; i < ccp->cmd_q_count; i++)
@@ -520,40 +574,6 @@ static void ccp_destroy(struct ccp_devic
 	}
 }
 
-static irqreturn_t ccp_irq_handler(int irq, void *data)
-{
-	struct device *dev = data;
-	struct ccp_device *ccp = dev_get_drvdata(dev);
-	struct ccp_cmd_queue *cmd_q;
-	u32 q_int, status;
-	unsigned int i;
-
-	status = ioread32(ccp->io_regs + IRQ_STATUS_REG);
-
-	for (i = 0; i < ccp->cmd_q_count; i++) {
-		cmd_q = &ccp->cmd_q[i];
-
-		q_int = status & (cmd_q->int_ok | cmd_q->int_err);
-		if (q_int) {
-			cmd_q->int_status = status;
-			cmd_q->q_status = ioread32(cmd_q->reg_status);
-			cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
-
-			/* On error, only save the first error value */
-			if ((q_int & cmd_q->int_err) && !cmd_q->cmd_error)
-				cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
-
-			cmd_q->int_rcvd = 1;
-
-			/* Acknowledge the interrupt and wake the kthread */
-			iowrite32(q_int, ccp->io_regs + IRQ_STATUS_REG);
-			wake_up_interruptible(&cmd_q->int_queue);
-		}
-	}
-
-	return IRQ_HANDLED;
-}
-
 static const struct ccp_actions ccp3_actions = {
 	.aes = ccp_perform_aes,
 	.xts_aes = ccp_perform_xts_aes,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev-v5.c linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev-v5.c
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dev-v5.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dev-v5.c	2017-09-27 08:40:05.000000000 -0400
@@ -131,6 +131,7 @@ union ccp_function {
 #define	CCP_AES_MODE(p)		((p)->aes.mode)
 #define	CCP_AES_TYPE(p)		((p)->aes.type)
 #define	CCP_XTS_SIZE(p)		((p)->aes_xts.size)
+#define	CCP_XTS_TYPE(p)		((p)->aes_xts.type)
 #define	CCP_XTS_ENCRYPT(p)	((p)->aes_xts.encrypt)
 #define	CCP_SHA_TYPE(p)		((p)->sha.type)
 #define	CCP_RSA_SIZE(p)		((p)->rsa.size)
@@ -318,6 +319,7 @@ static int ccp5_perform_xts_aes(struct c
 	CCP5_CMD_PROT(&desc) = 0;
 
 	function.raw = 0;
+	CCP_XTS_TYPE(&function) = op->u.xts.type;
 	CCP_XTS_ENCRYPT(&function) = op->u.xts.action;
 	CCP_XTS_SIZE(&function) = op->u.xts.unit_size;
 	CCP5_CMD_FUNCTION(&desc) = function.raw;
@@ -644,6 +646,65 @@ static int ccp_assign_lsbs(struct ccp_de
 	return rc;
 }
 
+static void ccp5_disable_queue_interrupts(struct ccp_device *ccp)
+{
+	unsigned int i;
+
+	for (i = 0; i < ccp->cmd_q_count; i++)
+		iowrite32(0x0, ccp->cmd_q[i].reg_int_enable);
+}
+
+static void ccp5_enable_queue_interrupts(struct ccp_device *ccp)
+{
+	unsigned int i;
+
+	for (i = 0; i < ccp->cmd_q_count; i++)
+		iowrite32(SUPPORTED_INTERRUPTS, ccp->cmd_q[i].reg_int_enable);
+}
+
+static void ccp5_irq_bh(unsigned long data)
+{
+	struct ccp_device *ccp = (struct ccp_device *)data;
+	u32 status;
+	unsigned int i;
+
+	for (i = 0; i < ccp->cmd_q_count; i++) {
+		struct ccp_cmd_queue *cmd_q = &ccp->cmd_q[i];
+
+		status = ioread32(cmd_q->reg_interrupt_status);
+
+		if (status) {
+			cmd_q->int_status = status;
+			cmd_q->q_status = ioread32(cmd_q->reg_status);
+			cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
+
+			/* On error, only save the first error value */
+			if ((status & INT_ERROR) && !cmd_q->cmd_error)
+				cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
+
+			cmd_q->int_rcvd = 1;
+
+			/* Acknowledge the interrupt and wake the kthread */
+			iowrite32(status, cmd_q->reg_interrupt_status);
+			wake_up_interruptible(&cmd_q->int_queue);
+		}
+	}
+	ccp5_enable_queue_interrupts(ccp);
+}
+
+static irqreturn_t ccp5_irq_handler(int irq, void *data)
+{
+	struct device *dev = data;
+	struct ccp_device *ccp = dev_get_drvdata(dev);
+
+	ccp5_disable_queue_interrupts(ccp);
+	if (ccp->use_tasklet)
+		tasklet_schedule(&ccp->irq_tasklet);
+	else
+		ccp5_irq_bh((unsigned long)ccp);
+	return IRQ_HANDLED;
+}
+
 static int ccp5_init(struct ccp_device *ccp)
 {
 	struct device *dev = ccp->dev;
@@ -728,19 +789,18 @@ static int ccp5_init(struct ccp_device *
 	dev_notice(dev, "%u command queues available\n", ccp->cmd_q_count);
 
 	/* Turn off the queues and disable interrupts until ready */
+	ccp5_disable_queue_interrupts(ccp);
 	for (i = 0; i < ccp->cmd_q_count; i++) {
 		cmd_q = &ccp->cmd_q[i];
 
 		cmd_q->qcontrol = 0; /* Start with nothing */
 		iowrite32(cmd_q->qcontrol, cmd_q->reg_control);
 
-		/* Disable the interrupts */
-		iowrite32(0x00, cmd_q->reg_int_enable);
 		ioread32(cmd_q->reg_int_status);
 		ioread32(cmd_q->reg_status);
 
-		/* Clear the interrupts */
-		iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status);
+		/* Clear the interrupt status */
+		iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status);
 	}
 
 	dev_dbg(dev, "Requesting an IRQ...\n");
@@ -750,6 +810,10 @@ static int ccp5_init(struct ccp_device *
 		dev_err(dev, "unable to allocate an IRQ\n");
 		goto e_pool;
 	}
+	/* Initialize the ISR tasklet */
+	if (ccp->use_tasklet)
+		tasklet_init(&ccp->irq_tasklet, ccp5_irq_bh,
+			     (unsigned long)ccp);
 
 	/* Initialize the queue used to suspend */
 	init_waitqueue_head(&ccp->suspend_queue);
@@ -821,11 +885,7 @@ static int ccp5_init(struct ccp_device *
 	}
 
 	dev_dbg(dev, "Enabling interrupts...\n");
-	/* Enable interrupts */
-	for (i = 0; i < ccp->cmd_q_count; i++) {
-		cmd_q = &ccp->cmd_q[i];
-		iowrite32(ALL_INTERRUPTS, cmd_q->reg_int_enable);
-	}
+	ccp5_enable_queue_interrupts(ccp);
 
 	dev_dbg(dev, "Registering device...\n");
 	/* Put this on the unit list to make it available */
@@ -877,17 +937,15 @@ static void ccp5_destroy(struct ccp_devi
 	ccp_del_device(ccp);
 
 	/* Disable and clear interrupts */
+	ccp5_disable_queue_interrupts(ccp);
 	for (i = 0; i < ccp->cmd_q_count; i++) {
 		cmd_q = &ccp->cmd_q[i];
 
 		/* Turn off the run bit */
 		iowrite32(cmd_q->qcontrol & ~CMD5_Q_RUN, cmd_q->reg_control);
 
-		/* Disable the interrupts */
-		iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status);
-
 		/* Clear the interrupt status */
-		iowrite32(0x00, cmd_q->reg_int_enable);
+		iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status);
 		ioread32(cmd_q->reg_int_status);
 		ioread32(cmd_q->reg_status);
 	}
@@ -920,42 +978,10 @@ static void ccp5_destroy(struct ccp_devi
 	}
 }
 
-static irqreturn_t ccp5_irq_handler(int irq, void *data)
-{
-	struct device *dev = data;
-	struct ccp_device *ccp = dev_get_drvdata(dev);
-	u32 status;
-	unsigned int i;
-
-	for (i = 0; i < ccp->cmd_q_count; i++) {
-		struct ccp_cmd_queue *cmd_q = &ccp->cmd_q[i];
-
-		status = ioread32(cmd_q->reg_interrupt_status);
-
-		if (status) {
-			cmd_q->int_status = status;
-			cmd_q->q_status = ioread32(cmd_q->reg_status);
-			cmd_q->q_int_status = ioread32(cmd_q->reg_int_status);
-
-			/* On error, only save the first error value */
-			if ((status & INT_ERROR) && !cmd_q->cmd_error)
-				cmd_q->cmd_error = CMD_Q_ERROR(cmd_q->q_status);
-
-			cmd_q->int_rcvd = 1;
-
-			/* Acknowledge the interrupt and wake the kthread */
-			iowrite32(ALL_INTERRUPTS, cmd_q->reg_interrupt_status);
-			wake_up_interruptible(&cmd_q->int_queue);
-		}
-	}
-
-	return IRQ_HANDLED;
-}
-
 static void ccp5_config(struct ccp_device *ccp)
 {
 	/* Public side */
-	iowrite32(0x00001249, ccp->io_regs + CMD5_REQID_CONFIG_OFFSET);
+	iowrite32(0x0, ccp->io_regs + CMD5_REQID_CONFIG_OFFSET);
 }
 
 static void ccp5other_config(struct ccp_device *ccp)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dmaengine.c linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dmaengine.c
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-dmaengine.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-dmaengine.c	2017-09-27 08:40:05.000000000 -0400
@@ -63,6 +63,7 @@ static void ccp_free_chan_resources(stru
 	ccp_free_desc_resources(chan->ccp, &chan->complete);
 	ccp_free_desc_resources(chan->ccp, &chan->active);
 	ccp_free_desc_resources(chan->ccp, &chan->pending);
+	ccp_free_desc_resources(chan->ccp, &chan->created);
 
 	spin_unlock_irqrestore(&chan->lock, flags);
 }
@@ -273,6 +274,7 @@ static dma_cookie_t ccp_tx_submit(struct
 	spin_lock_irqsave(&chan->lock, flags);
 
 	cookie = dma_cookie_assign(tx_desc);
+	list_del(&desc->entry);
 	list_add_tail(&desc->entry, &chan->pending);
 
 	spin_unlock_irqrestore(&chan->lock, flags);
@@ -388,6 +390,7 @@ static struct ccp_dma_desc *ccp_create_d
 			goto err;
 
 		ccp_cmd = &cmd->ccp_cmd;
+		ccp_cmd->ccp = chan->ccp;
 		ccp_pt = &ccp_cmd->u.passthru_nomap;
 		ccp_cmd->flags = CCP_CMD_MAY_BACKLOG;
 		ccp_cmd->flags |= CCP_CMD_PASSTHRU_NO_DMA_MAP;
@@ -426,7 +429,7 @@ static struct ccp_dma_desc *ccp_create_d
 
 	spin_lock_irqsave(&chan->lock, sflags);
 
-	list_add_tail(&desc->entry, &chan->pending);
+	list_add_tail(&desc->entry, &chan->created);
 
 	spin_unlock_irqrestore(&chan->lock, sflags);
 
@@ -610,6 +613,7 @@ static int ccp_terminate_all(struct dma_
 	/*TODO: Purge the complete list? */
 	ccp_free_desc_resources(chan->ccp, &chan->active);
 	ccp_free_desc_resources(chan->ccp, &chan->pending);
+	ccp_free_desc_resources(chan->ccp, &chan->created);
 
 	spin_unlock_irqrestore(&chan->lock, flags);
 
@@ -679,6 +683,7 @@ int ccp_dmaengine_register(struct ccp_de
 		chan->ccp = ccp;
 
 		spin_lock_init(&chan->lock);
+		INIT_LIST_HEAD(&chan->created);
 		INIT_LIST_HEAD(&chan->pending);
 		INIT_LIST_HEAD(&chan->active);
 		INIT_LIST_HEAD(&chan->complete);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-ops.c linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-ops.c
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-ops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-ops.c	2017-09-27 08:40:05.000000000 -0400
@@ -779,6 +779,8 @@ static int ccp_run_xts_aes_cmd(struct cc
 	struct ccp_op op;
 	unsigned int unit_size, dm_offset;
 	bool in_place = false;
+	unsigned int sb_count;
+	enum ccp_aes_type aestype;
 	int ret;
 
 	switch (xts->unit_size) {
@@ -802,7 +804,9 @@ static int ccp_run_xts_aes_cmd(struct cc
 		return -EINVAL;
 	}
 
-	if (xts->key_len != AES_KEYSIZE_128)
+	if (xts->key_len == AES_KEYSIZE_128)
+		aestype = CCP_AES_TYPE_128;
+	else
 		return -EINVAL;
 
 	if (!xts->final && (xts->src_len & (AES_BLOCK_SIZE - 1)))
@@ -824,23 +828,44 @@ static int ccp_run_xts_aes_cmd(struct cc
 	op.sb_key = cmd_q->sb_key;
 	op.sb_ctx = cmd_q->sb_ctx;
 	op.init = 1;
+	op.u.xts.type = aestype;
 	op.u.xts.action = xts->action;
 	op.u.xts.unit_size = xts->unit_size;
 
-	/* All supported key sizes fit in a single (32-byte) SB entry
-	 * and must be in little endian format. Use the 256-bit byte
-	 * swap passthru option to convert from big endian to little
-	 * endian.
+	/* A version 3 device only supports 128-bit keys, which fits into a
+	 * single SB entry. A version 5 device uses a 512-bit vector, so two
+	 * SB entries.
 	 */
+	if (cmd_q->ccp->vdata->version == CCP_VERSION(3, 0))
+		sb_count = CCP_XTS_AES_KEY_SB_COUNT;
+	else
+		sb_count = CCP5_XTS_AES_KEY_SB_COUNT;
 	ret = ccp_init_dm_workarea(&key, cmd_q,
-				   CCP_XTS_AES_KEY_SB_COUNT * CCP_SB_BYTES,
+				   sb_count * CCP_SB_BYTES,
 				   DMA_TO_DEVICE);
 	if (ret)
 		return ret;
 
-	dm_offset = CCP_SB_BYTES - AES_KEYSIZE_128;
-	ccp_set_dm_area(&key, dm_offset, xts->key, 0, xts->key_len);
-	ccp_set_dm_area(&key, 0, xts->key, dm_offset, xts->key_len);
+	if (cmd_q->ccp->vdata->version == CCP_VERSION(3, 0)) {
+		/* All supported key sizes must be in little endian format.
+		 * Use the 256-bit byte swap passthru option to convert from
+		 * big endian to little endian.
+		 */
+		dm_offset = CCP_SB_BYTES - AES_KEYSIZE_128;
+		ccp_set_dm_area(&key, dm_offset, xts->key, 0, xts->key_len);
+		ccp_set_dm_area(&key, 0, xts->key, xts->key_len, xts->key_len);
+	} else {
+		/* Version 5 CCPs use a 512-bit space for the key: each portion
+		 * occupies 256 bits, or one entire slot, and is zero-padded.
+		 */
+		unsigned int pad;
+
+		dm_offset = CCP_SB_BYTES;
+		pad = dm_offset - xts->key_len;
+		ccp_set_dm_area(&key, pad, xts->key, 0, xts->key_len);
+		ccp_set_dm_area(&key, dm_offset + pad, xts->key, xts->key_len,
+				xts->key_len);
+	}
 	ret = ccp_copy_to_sb(cmd_q, &key, op.jobid, op.sb_key,
 			     CCP_PASSTHRU_BYTESWAP_256BIT);
 	if (ret) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-pci.c linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-pci.c
--- linux-libre-4.9-gnu/drivers/crypto/ccp/ccp-pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ccp/ccp-pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -69,6 +69,7 @@ static int ccp_get_msix_irqs(struct ccp_
 			goto e_irq;
 		}
 	}
+	ccp->use_tasklet = true;
 
 	return 0;
 
@@ -100,6 +101,7 @@ static int ccp_get_msi_irq(struct ccp_de
 		dev_notice(dev, "unable to allocate MSI IRQ (%d)\n", ret);
 		goto e_msi;
 	}
+	ccp->use_tasklet = true;
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/chelsio/chcr_core.c linux-libre-4.9.52-gnu/drivers/crypto/chelsio/chcr_core.c
--- linux-libre-4.9-gnu/drivers/crypto/chelsio/chcr_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/chelsio/chcr_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,6 +51,7 @@ static struct cxgb4_uld_info chcr_uld_in
 int assign_chcr_device(struct chcr_dev **dev)
 {
 	struct uld_ctx *u_ctx;
+	int ret = -ENXIO;
 
 	/*
 	 * Which device to use if multiple devices are available TODO
@@ -58,15 +59,14 @@ int assign_chcr_device(struct chcr_dev *
 	 * must go to the same device to maintain the ordering.
 	 */
 	mutex_lock(&dev_mutex); /* TODO ? */
-	u_ctx = list_first_entry(&uld_ctx_list, struct uld_ctx, entry);
-	if (!u_ctx) {
-		mutex_unlock(&dev_mutex);
-		return -ENXIO;
+	list_for_each_entry(u_ctx, &uld_ctx_list, entry)
+		if (u_ctx && u_ctx->dev) {
+			*dev = u_ctx->dev;
+			ret = 0;
+			break;
 	}
-
-	*dev = u_ctx->dev;
 	mutex_unlock(&dev_mutex);
-	return 0;
+	return ret;
 }
 
 static int chcr_dev_add(struct uld_ctx *u_ctx)
@@ -203,10 +203,8 @@ static int chcr_uld_state_change(void *h
 
 static int __init chcr_crypto_init(void)
 {
-	if (cxgb4_register_uld(CXGB4_ULD_CRYPTO, &chcr_uld_info)) {
+	if (cxgb4_register_uld(CXGB4_ULD_CRYPTO, &chcr_uld_info))
 		pr_err("ULD register fail: No chcr crypto support in cxgb4");
-		return -1;
-	}
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/ixp4xx_crypto.c linux-libre-4.9.52-gnu/drivers/crypto/ixp4xx_crypto.c
--- linux-libre-4.9-gnu/drivers/crypto/ixp4xx_crypto.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/ixp4xx_crypto.c	2017-09-27 08:40:05.000000000 -0400
@@ -1074,7 +1074,7 @@ static int aead_perform(struct aead_requ
 		req_ctx->hmac_virt = dma_pool_alloc(buffer_pool, flags,
 				&crypt->icv_rev_aes);
 		if (unlikely(!req_ctx->hmac_virt))
-			goto free_buf_src;
+			goto free_buf_dst;
 		if (!encrypt) {
 			scatterwalk_map_and_copy(req_ctx->hmac_virt,
 				req->src, cryptlen, authsize, 0);
@@ -1089,10 +1089,10 @@ static int aead_perform(struct aead_requ
 	BUG_ON(qmgr_stat_overflow(SEND_QID));
 	return -EINPROGRESS;
 
-free_buf_src:
-	free_buf_chain(dev, req_ctx->src, crypt->src_buf);
 free_buf_dst:
 	free_buf_chain(dev, req_ctx->dst, crypt->dst_buf);
+free_buf_src:
+	free_buf_chain(dev, req_ctx->src, crypt->src_buf);
 	crypt->ctl_flags = CTL_FLAG_UNUSED;
 	return -ENOMEM;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/qat/qat_c62x/adf_drv.c linux-libre-4.9.52-gnu/drivers/crypto/qat/qat_c62x/adf_drv.c
--- linux-libre-4.9-gnu/drivers/crypto/qat/qat_c62x/adf_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/qat/qat_c62x/adf_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -233,7 +233,7 @@ static int adf_probe(struct pci_dev *pde
 			      &hw_data->accel_capabilities_mask);
 
 	/* Find and map all the device's BARS */
-	i = 0;
+	i = (hw_data->fuses & ADF_DEVICE_FUSECTL_MASK) ? 1 : 0;
 	bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
 	for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask,
 			 ADF_PCI_MAX_BARS * 2) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/qat/qat_common/adf_accel_devices.h linux-libre-4.9.52-gnu/drivers/crypto/qat/qat_common/adf_accel_devices.h
--- linux-libre-4.9-gnu/drivers/crypto/qat/qat_common/adf_accel_devices.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/qat/qat_common/adf_accel_devices.h	2017-09-27 08:40:05.000000000 -0400
@@ -69,6 +69,7 @@
 #define ADF_ERRSOU5 (0x3A000 + 0xD8)
 #define ADF_DEVICE_FUSECTL_OFFSET 0x40
 #define ADF_DEVICE_LEGFUSE_OFFSET 0x4C
+#define ADF_DEVICE_FUSECTL_MASK 0x80000000
 #define ADF_PCI_MAX_BARS 3
 #define ADF_DEVICE_NAME_LENGTH 32
 #define ADF_ETR_MAX_RINGS_PER_BANK 16
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/qat/qat_common/qat_hal.c linux-libre-4.9.52-gnu/drivers/crypto/qat/qat_common/qat_hal.c
--- linux-libre-4.9-gnu/drivers/crypto/qat/qat_common/qat_hal.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/qat/qat_common/qat_hal.c	2017-09-27 08:40:05.000000000 -0400
@@ -456,7 +456,7 @@ static int qat_hal_init_esram(struct icp
 	unsigned int csr_val;
 	int times = 30;
 
-	if (handle->pci_dev->device == ADF_C3XXX_PCI_DEVICE_ID)
+	if (handle->pci_dev->device != ADF_DH895XCC_PCI_DEVICE_ID)
 		return 0;
 
 	csr_val = ADF_CSR_RD(csr_addr, 0);
@@ -716,7 +716,7 @@ int qat_hal_init(struct adf_accel_dev *a
 		(void __iomem *)((uintptr_t)handle->hal_cap_ae_xfer_csr_addr_v +
 				 LOCAL_TO_XFER_REG_OFFSET);
 	handle->pci_dev = pci_info->pci_dev;
-	if (handle->pci_dev->device != ADF_C3XXX_PCI_DEVICE_ID) {
+	if (handle->pci_dev->device == ADF_DH895XCC_PCI_DEVICE_ID) {
 		sram_bar =
 			&pci_info->pci_bars[hw_data->get_sram_bar_id(hw_data)];
 		handle->hal_sram_addr_v = sram_bar->virt_addr;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/crypto/talitos.c linux-libre-4.9.52-gnu/drivers/crypto/talitos.c
--- linux-libre-4.9-gnu/drivers/crypto/talitos.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/crypto/talitos.c	2017-09-27 08:40:05.000000000 -0400
@@ -816,7 +816,7 @@ static void talitos_unregister_rng(struc
  * HMAC_SNOOP_NO_AFEA (HSNA) instead of type IPSEC_ESP
  */
 #define TALITOS_CRA_PRIORITY_AEAD_HSNA	(TALITOS_CRA_PRIORITY - 1)
-#define TALITOS_MAX_KEY_SIZE		96
+#define TALITOS_MAX_KEY_SIZE		(AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
 #define TALITOS_MAX_IV_LENGTH		16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
 
 struct talitos_ctx {
@@ -1495,6 +1495,11 @@ static int ablkcipher_setkey(struct cryp
 {
 	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
 
+	if (keylen > TALITOS_MAX_KEY_SIZE) {
+		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		return -EINVAL;
+	}
+
 	memcpy(&ctx->key, key, keylen);
 	ctx->keylen = keylen;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dax/dax.c linux-libre-4.9.52-gnu/drivers/dax/dax.c
--- linux-libre-4.9-gnu/drivers/dax/dax.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dax/dax.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,7 @@
 #include "dax.h"
 
 static dev_t dax_devt;
+DEFINE_STATIC_SRCU(dax_srcu);
 static struct class *dax_class;
 static DEFINE_IDA(dax_minor_ida);
 static int nr_dax = CONFIG_NR_DEV_DAX;
@@ -59,7 +60,7 @@ struct dax_region {
  * @region - parent region
  * @dev - device backing the character device
  * @cdev - core chardev data
- * @alive - !alive + rcu grace period == no new mappings can be established
+ * @alive - !alive + srcu grace period == no new mappings can be established
  * @id - child id in the region
  * @num_resources - number of physical address extents in this device
  * @res - array of physical address ranges
@@ -334,6 +335,7 @@ static int __dax_dev_fault(struct dax_de
 	int rc = VM_FAULT_SIGBUS;
 	phys_addr_t phys;
 	pfn_t pfn;
+	unsigned int fault_size = PAGE_SIZE;
 
 	if (check_vma(dax_dev, vma, __func__))
 		return VM_FAULT_SIGBUS;
@@ -344,6 +346,9 @@ static int __dax_dev_fault(struct dax_de
 		return VM_FAULT_SIGBUS;
 	}
 
+	if (fault_size != dax_region->align)
+		return VM_FAULT_SIGBUS;
+
 	phys = pgoff_to_phys(dax_dev, vmf->pgoff, PAGE_SIZE);
 	if (phys == -1) {
 		dev_dbg(dev, "%s: phys_to_pgoff(%#lx) failed\n", __func__,
@@ -389,6 +394,7 @@ static int __dax_dev_pmd_fault(struct da
 	phys_addr_t phys;
 	pgoff_t pgoff;
 	pfn_t pfn;
+	unsigned int fault_size = PMD_SIZE;
 
 	if (check_vma(dax_dev, vma, __func__))
 		return VM_FAULT_SIGBUS;
@@ -405,6 +411,16 @@ static int __dax_dev_pmd_fault(struct da
 		return VM_FAULT_SIGBUS;
 	}
 
+	if (fault_size < dax_region->align)
+		return VM_FAULT_SIGBUS;
+	else if (fault_size > dax_region->align)
+		return VM_FAULT_FALLBACK;
+
+	/* if we are outside of the VMA */
+	if (pmd_addr < vma->vm_start ||
+			(pmd_addr + PMD_SIZE) > vma->vm_end)
+		return VM_FAULT_SIGBUS;
+
 	pgoff = linear_page_index(vma, pmd_addr);
 	phys = pgoff_to_phys(dax_dev, pgoff, PMD_SIZE);
 	if (phys == -1) {
@@ -422,7 +438,7 @@ static int __dax_dev_pmd_fault(struct da
 static int dax_dev_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
 		pmd_t *pmd, unsigned int flags)
 {
-	int rc;
+	int rc, id;
 	struct file *filp = vma->vm_file;
 	struct dax_dev *dax_dev = filp->private_data;
 
@@ -430,9 +446,9 @@ static int dax_dev_pmd_fault(struct vm_a
 			current->comm, (flags & FAULT_FLAG_WRITE)
 			? "write" : "read", vma->vm_start, vma->vm_end);
 
-	rcu_read_lock();
+	id = srcu_read_lock(&dax_srcu);
 	rc = __dax_dev_pmd_fault(dax_dev, vma, addr, pmd, flags);
-	rcu_read_unlock();
+	srcu_read_unlock(&dax_srcu, id);
 
 	return rc;
 }
@@ -530,36 +546,43 @@ static void dax_dev_release(struct devic
 	struct dax_dev *dax_dev = to_dax_dev(dev);
 	struct dax_region *dax_region = dax_dev->region;
 
-	ida_simple_remove(&dax_region->ida, dax_dev->id);
+	if (dax_dev->id >= 0)
+		ida_simple_remove(&dax_region->ida, dax_dev->id);
 	ida_simple_remove(&dax_minor_ida, MINOR(dev->devt));
 	dax_region_put(dax_region);
 	iput(dax_dev->inode);
 	kfree(dax_dev);
 }
 
-static void unregister_dax_dev(void *dev)
+static void kill_dax_dev(struct dax_dev *dax_dev)
 {
-	struct dax_dev *dax_dev = to_dax_dev(dev);
 	struct cdev *cdev = &dax_dev->cdev;
 
-	dev_dbg(dev, "%s\n", __func__);
-
 	/*
 	 * Note, rcu is not protecting the liveness of dax_dev, rcu is
 	 * ensuring that any fault handlers that might have seen
 	 * dax_dev->alive == true, have completed.  Any fault handlers
-	 * that start after synchronize_rcu() has started will abort
+	 * that start after synchronize_srcu() has started will abort
 	 * upon seeing dax_dev->alive == false.
 	 */
 	dax_dev->alive = false;
-	synchronize_rcu();
+	synchronize_srcu(&dax_srcu);
 	unmap_mapping_range(dax_dev->inode->i_mapping, 0, 0, 1);
 	cdev_del(cdev);
+}
+
+static void unregister_dax_dev(void *dev)
+{
+	struct dax_dev *dax_dev = to_dax_dev(dev);
+
+	dev_dbg(dev, "%s\n", __func__);
+
+	kill_dax_dev(dax_dev);
 	device_unregister(dev);
 }
 
 struct dax_dev *devm_create_dax_dev(struct dax_region *dax_region,
-		struct resource *res, int count)
+		int id, struct resource *res, int count)
 {
 	struct device *parent = dax_region->dev;
 	struct dax_dev *dax_dev;
@@ -586,10 +609,16 @@ struct dax_dev *devm_create_dax_dev(stru
 	if (i < count)
 		goto err_id;
 
-	dax_dev->id = ida_simple_get(&dax_region->ida, 0, 0, GFP_KERNEL);
-	if (dax_dev->id < 0) {
-		rc = dax_dev->id;
-		goto err_id;
+	if (id < 0) {
+		id = ida_simple_get(&dax_region->ida, 0, 0, GFP_KERNEL);
+		dax_dev->id = id;
+		if (id < 0) {
+			rc = id;
+			goto err_id;
+		}
+	} else {
+		/* region provider owns @id lifetime */
+		dax_dev->id = -1;
 	}
 
 	minor = ida_simple_get(&dax_minor_ida, 0, 0, GFP_KERNEL);
@@ -628,9 +657,10 @@ struct dax_dev *devm_create_dax_dev(stru
 	dev->parent = parent;
 	dev->groups = dax_attribute_groups;
 	dev->release = dax_dev_release;
-	dev_set_name(dev, "dax%d.%d", dax_region->id, dax_dev->id);
+	dev_set_name(dev, "dax%d.%d", dax_region->id, id);
 	rc = device_add(dev);
 	if (rc) {
+		kill_dax_dev(dax_dev);
 		put_device(dev);
 		return ERR_PTR(rc);
 	}
@@ -646,7 +676,8 @@ struct dax_dev *devm_create_dax_dev(stru
  err_inode:
 	ida_simple_remove(&dax_minor_ida, minor);
  err_minor:
-	ida_simple_remove(&dax_region->ida, dax_dev->id);
+	if (dax_dev->id >= 0)
+		ida_simple_remove(&dax_region->ida, dax_dev->id);
  err_id:
 	kfree(dax_dev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dax/dax.h linux-libre-4.9.52-gnu/drivers/dax/dax.h
--- linux-libre-4.9-gnu/drivers/dax/dax.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dax/dax.h	2017-09-27 08:40:05.000000000 -0400
@@ -21,5 +21,5 @@ struct dax_region *alloc_dax_region(stru
 		int region_id, struct resource *res, unsigned int align,
 		void *addr, unsigned long flags);
 struct dax_dev *devm_create_dax_dev(struct dax_region *dax_region,
-		struct resource *res, int count);
+		int id, struct resource *res, int count);
 #endif /* __DAX_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dax/Kconfig linux-libre-4.9.52-gnu/drivers/dax/Kconfig
--- linux-libre-4.9-gnu/drivers/dax/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dax/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -2,6 +2,7 @@ menuconfig DEV_DAX
 	tristate "DAX: direct access to differentiated memory"
 	default m if NVDIMM_DAX
 	depends on TRANSPARENT_HUGEPAGE
+	select SRCU
 	help
 	  Support raw access to differentiated (persistence, bandwidth,
 	  latency...) memory via an mmap(2) capable character
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dax/pmem.c linux-libre-4.9.52-gnu/drivers/dax/pmem.c
--- linux-libre-4.9-gnu/drivers/dax/pmem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dax/pmem.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,13 +58,12 @@ static void dax_pmem_percpu_kill(void *d
 
 static int dax_pmem_probe(struct device *dev)
 {
-	int rc;
 	void *addr;
 	struct resource res;
 	struct dax_dev *dax_dev;
+	int rc, id, region_id;
 	struct nd_pfn_sb *pfn_sb;
 	struct dax_pmem *dax_pmem;
-	struct nd_region *nd_region;
 	struct nd_namespace_io *nsio;
 	struct dax_region *dax_region;
 	struct nd_namespace_common *ndns;
@@ -122,14 +121,17 @@ static int dax_pmem_probe(struct device
 	/* adjust the dax_region resource to the start of data */
 	res.start += le64_to_cpu(pfn_sb->dataoff);
 
-	nd_region = to_nd_region(dev->parent);
-	dax_region = alloc_dax_region(dev, nd_region->id, &res,
+	rc = sscanf(dev_name(&ndns->dev), "namespace%d.%d", &region_id, &id);
+	if (rc != 2)
+		return -EINVAL;
+
+	dax_region = alloc_dax_region(dev, region_id, &res,
 			le32_to_cpu(pfn_sb->align), addr, PFN_DEV|PFN_MAP);
 	if (!dax_region)
 		return -ENOMEM;
 
 	/* TODO: support for subdividing a dax region... */
-	dax_dev = devm_create_dax_dev(dax_region, &res, 1);
+	dax_dev = devm_create_dax_dev(dax_region, id, &res, 1);
 
 	/* child dax_dev instances now own the lifetime of the dax_region */
 	dax_region_put(dax_region);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/devfreq/devfreq.c linux-libre-4.9.52-gnu/drivers/devfreq/devfreq.c
--- linux-libre-4.9-gnu/drivers/devfreq/devfreq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/devfreq/devfreq.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,7 +130,7 @@ static void devfreq_set_freq_table(struc
  * @devfreq:	the devfreq instance
  * @freq:	the update target frequency
  */
-static int devfreq_update_status(struct devfreq *devfreq, unsigned long freq)
+int devfreq_update_status(struct devfreq *devfreq, unsigned long freq)
 {
 	int lev, prev_lev, ret = 0;
 	unsigned long cur_time;
@@ -166,6 +166,7 @@ out:
 	devfreq->last_stat_updated = cur_time;
 	return ret;
 }
+EXPORT_SYMBOL(devfreq_update_status);
 
 /**
  * find_devfreq_governor() - find devfreq governor from name
@@ -573,7 +574,7 @@ struct devfreq *devfreq_add_device(struc
 	err = device_register(&devfreq->dev);
 	if (err) {
 		mutex_unlock(&devfreq->lock);
-		goto err_out;
+		goto err_dev;
 	}
 
 	devfreq->trans_table =	devm_kzalloc(&devfreq->dev, sizeof(unsigned int) *
@@ -593,11 +594,16 @@ struct devfreq *devfreq_add_device(struc
 	list_add(&devfreq->node, &devfreq_list);
 
 	governor = find_devfreq_governor(devfreq->governor_name);
-	if (!IS_ERR(governor))
-		devfreq->governor = governor;
-	if (devfreq->governor)
-		err = devfreq->governor->event_handler(devfreq,
-					DEVFREQ_GOV_START, NULL);
+	if (IS_ERR(governor)) {
+		dev_err(dev, "%s: Unable to find governor for the device\n",
+			__func__);
+		err = PTR_ERR(governor);
+		goto err_init;
+	}
+
+	devfreq->governor = governor;
+	err = devfreq->governor->event_handler(devfreq, DEVFREQ_GOV_START,
+						NULL);
 	if (err) {
 		dev_err(dev, "%s: Unable to start governor for the device\n",
 			__func__);
@@ -612,6 +618,9 @@ err_init:
 	mutex_unlock(&devfreq_list_lock);
 
 	device_unregister(&devfreq->dev);
+err_dev:
+	if (devfreq)
+		kfree(devfreq);
 err_out:
 	return ERR_PTR(err);
 }
@@ -934,6 +943,9 @@ static ssize_t governor_store(struct dev
 	if (df->governor == governor) {
 		ret = 0;
 		goto out;
+	} else if (df->governor->immutable || governor->immutable) {
+		ret = -EINVAL;
+		goto out;
 	}
 
 	if (df->governor) {
@@ -963,13 +975,33 @@ static ssize_t available_governors_show(
 					struct device_attribute *attr,
 					char *buf)
 {
-	struct devfreq_governor *tmp_governor;
+	struct devfreq *df = to_devfreq(d);
 	ssize_t count = 0;
 
 	mutex_lock(&devfreq_list_lock);
-	list_for_each_entry(tmp_governor, &devfreq_governor_list, node)
-		count += scnprintf(&buf[count], (PAGE_SIZE - count - 2),
-				   "%s ", tmp_governor->name);
+
+	/*
+	 * The devfreq with immutable governor (e.g., passive) shows
+	 * only own governor.
+	 */
+	if (df->governor->immutable) {
+		count = scnprintf(&buf[count], DEVFREQ_NAME_LEN,
+				   "%s ", df->governor_name);
+	/*
+	 * The devfreq device shows the registered governor except for
+	 * immutable governors such as passive governor .
+	 */
+	} else {
+		struct devfreq_governor *governor;
+
+		list_for_each_entry(governor, &devfreq_governor_list, node) {
+			if (governor->immutable)
+				continue;
+			count += scnprintf(&buf[count], (PAGE_SIZE - count - 2),
+					   "%s ", governor->name);
+		}
+	}
+
 	mutex_unlock(&devfreq_list_lock);
 
 	/* Truncate the trailing space */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/devfreq/exynos-bus.c linux-libre-4.9.52-gnu/drivers/devfreq/exynos-bus.c
--- linux-libre-4.9-gnu/drivers/devfreq/exynos-bus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/devfreq/exynos-bus.c	2017-09-27 08:40:05.000000000 -0400
@@ -498,7 +498,7 @@ passive:
 	if (IS_ERR(bus->devfreq)) {
 		dev_err(dev,
 			"failed to add devfreq dev with passive governor\n");
-		ret = -EPROBE_DEFER;
+		ret = PTR_ERR(bus->devfreq);
 		goto err;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/devfreq/governor.h linux-libre-4.9.52-gnu/drivers/devfreq/governor.h
--- linux-libre-4.9-gnu/drivers/devfreq/governor.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/devfreq/governor.h	2017-09-27 08:40:05.000000000 -0400
@@ -38,4 +38,6 @@ extern void devfreq_interval_update(stru
 extern int devfreq_add_governor(struct devfreq_governor *governor);
 extern int devfreq_remove_governor(struct devfreq_governor *governor);
 
+extern int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
+
 #endif /* _GOVERNOR_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/devfreq/governor_passive.c linux-libre-4.9.52-gnu/drivers/devfreq/governor_passive.c
--- linux-libre-4.9-gnu/drivers/devfreq/governor_passive.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/devfreq/governor_passive.c	2017-09-27 08:40:05.000000000 -0400
@@ -112,6 +112,11 @@ static int update_devfreq_passive(struct
 	if (ret < 0)
 		goto out;
 
+	if (devfreq->profile->freq_table
+		&& (devfreq_update_status(devfreq, freq)))
+		dev_err(&devfreq->dev,
+			"Couldn't update frequency transition information.\n");
+
 	devfreq->previous_freq = freq;
 
 out:
@@ -179,6 +184,7 @@ static int devfreq_passive_event_handler
 
 static struct devfreq_governor devfreq_passive = {
 	.name = "passive",
+	.immutable = 1,
 	.get_target_freq = devfreq_passive_get_target_freq,
 	.event_handler = devfreq_passive_event_handler,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/bcm2835-dma.c linux-libre-4.9.52-gnu/drivers/dma/bcm2835-dma.c
--- linux-libre-4.9-gnu/drivers/dma/bcm2835-dma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/bcm2835-dma.c	2017-09-27 08:40:05.000000000 -0400
@@ -251,8 +251,11 @@ static void bcm2835_dma_create_cb_set_le
 	 */
 
 	/* have we filled in period_length yet? */
-	if (*total_len + control_block->length < period_len)
+	if (*total_len + control_block->length < period_len) {
+		/* update number of bytes in this period so far */
+		*total_len += control_block->length;
 		return;
+	}
 
 	/* calculate the length that remains to reach period_length */
 	control_block->length = period_len - *total_len;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/cppi41.c linux-libre-4.9.52-gnu/drivers/dma/cppi41.c
--- linux-libre-4.9-gnu/drivers/dma/cppi41.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/cppi41.c	2017-09-27 08:40:05.000000000 -0400
@@ -153,6 +153,8 @@ struct cppi41_dd {
 
 	/* context for suspend/resume */
 	unsigned int dma_tdfdq;
+
+	bool is_suspended;
 };
 
 #define FIST_COMPLETION_QUEUE	93
@@ -257,6 +259,10 @@ static struct cppi41_channel *desc_to_ch
 	BUG_ON(desc_num >= ALLOC_DECS_NUM);
 	c = cdd->chan_busy[desc_num];
 	cdd->chan_busy[desc_num] = NULL;
+
+	/* Usecount for chan_busy[], paired with push_desc_queue() */
+	pm_runtime_put(cdd->ddev.dev);
+
 	return c;
 }
 
@@ -447,6 +453,15 @@ static void push_desc_queue(struct cppi4
 	 */
 	__iowmb();
 
+	/*
+	 * DMA transfers can take at least 200ms to complete with USB mass
+	 * storage connected. To prevent autosuspend timeouts, we must use
+	 * pm_runtime_get/put() when chan_busy[] is modified. This will get
+	 * cleared in desc_to_chan() or cppi41_stop_chan() depending on the
+	 * outcome of the transfer.
+	 */
+	pm_runtime_get(cdd->ddev.dev);
+
 	desc_phys = lower_32_bits(c->desc_phys);
 	desc_num = (desc_phys - cdd->descs_phys) / sizeof(struct cppi41_desc);
 	WARN_ON(cdd->chan_busy[desc_num]);
@@ -457,20 +472,26 @@ static void push_desc_queue(struct cppi4
 	cppi_writel(reg, cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num));
 }
 
-static void pending_desc(struct cppi41_channel *c)
+/*
+ * Caller must hold cdd->lock to prevent push_desc_queue()
+ * getting called out of order. We have both cppi41_dma_issue_pending()
+ * and cppi41_runtime_resume() call this function.
+ */
+static void cppi41_run_queue(struct cppi41_dd *cdd)
 {
-	struct cppi41_dd *cdd = c->cdd;
-	unsigned long flags;
+	struct cppi41_channel *c, *_c;
 
-	spin_lock_irqsave(&cdd->lock, flags);
-	list_add_tail(&c->node, &cdd->pending);
-	spin_unlock_irqrestore(&cdd->lock, flags);
+	list_for_each_entry_safe(c, _c, &cdd->pending, node) {
+		push_desc_queue(c);
+		list_del(&c->node);
+	}
 }
 
 static void cppi41_dma_issue_pending(struct dma_chan *chan)
 {
 	struct cppi41_channel *c = to_cpp41_chan(chan);
 	struct cppi41_dd *cdd = c->cdd;
+	unsigned long flags;
 	int error;
 
 	error = pm_runtime_get(cdd->ddev.dev);
@@ -482,10 +503,11 @@ static void cppi41_dma_issue_pending(str
 		return;
 	}
 
-	if (likely(pm_runtime_active(cdd->ddev.dev)))
-		push_desc_queue(c);
-	else
-		pending_desc(c);
+	spin_lock_irqsave(&cdd->lock, flags);
+	list_add_tail(&c->node, &cdd->pending);
+	if (!cdd->is_suspended)
+		cppi41_run_queue(cdd);
+	spin_unlock_irqrestore(&cdd->lock, flags);
 
 	pm_runtime_mark_last_busy(cdd->ddev.dev);
 	pm_runtime_put_autosuspend(cdd->ddev.dev);
@@ -705,6 +727,9 @@ static int cppi41_stop_chan(struct dma_c
 	WARN_ON(!cdd->chan_busy[desc_num]);
 	cdd->chan_busy[desc_num] = NULL;
 
+	/* Usecount for chan_busy[], paired with push_desc_queue() */
+	pm_runtime_put(cdd->ddev.dev);
+
 	return 0;
 }
 
@@ -1150,8 +1175,12 @@ static int __maybe_unused cppi41_resume(
 static int __maybe_unused cppi41_runtime_suspend(struct device *dev)
 {
 	struct cppi41_dd *cdd = dev_get_drvdata(dev);
+	unsigned long flags;
 
+	spin_lock_irqsave(&cdd->lock, flags);
+	cdd->is_suspended = true;
 	WARN_ON(!list_empty(&cdd->pending));
+	spin_unlock_irqrestore(&cdd->lock, flags);
 
 	return 0;
 }
@@ -1159,14 +1188,11 @@ static int __maybe_unused cppi41_runtime
 static int __maybe_unused cppi41_runtime_resume(struct device *dev)
 {
 	struct cppi41_dd *cdd = dev_get_drvdata(dev);
-	struct cppi41_channel *c, *_c;
 	unsigned long flags;
 
 	spin_lock_irqsave(&cdd->lock, flags);
-	list_for_each_entry_safe(c, _c, &cdd->pending, node) {
-		push_desc_queue(c);
-		list_del(&c->node);
-	}
+	cdd->is_suspended = false;
+	cppi41_run_queue(cdd);
 	spin_unlock_irqrestore(&cdd->lock, flags);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/ep93xx_dma.c linux-libre-4.9.52-gnu/drivers/dma/ep93xx_dma.c
--- linux-libre-4.9-gnu/drivers/dma/ep93xx_dma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/ep93xx_dma.c	2017-09-27 08:40:05.000000000 -0400
@@ -201,6 +201,7 @@ struct ep93xx_dma_engine {
 	struct dma_device	dma_dev;
 	bool			m2m;
 	int			(*hw_setup)(struct ep93xx_dma_chan *);
+	void			(*hw_synchronize)(struct ep93xx_dma_chan *);
 	void			(*hw_shutdown)(struct ep93xx_dma_chan *);
 	void			(*hw_submit)(struct ep93xx_dma_chan *);
 	int			(*hw_interrupt)(struct ep93xx_dma_chan *);
@@ -323,6 +324,8 @@ static int m2p_hw_setup(struct ep93xx_dm
 		| M2P_CONTROL_ENABLE;
 	m2p_set_control(edmac, control);
 
+	edmac->buffer = 0;
+
 	return 0;
 }
 
@@ -331,21 +334,27 @@ static inline u32 m2p_channel_state(stru
 	return (readl(edmac->regs + M2P_STATUS) >> 4) & 0x3;
 }
 
-static void m2p_hw_shutdown(struct ep93xx_dma_chan *edmac)
+static void m2p_hw_synchronize(struct ep93xx_dma_chan *edmac)
 {
+	unsigned long flags;
 	u32 control;
 
+	spin_lock_irqsave(&edmac->lock, flags);
 	control = readl(edmac->regs + M2P_CONTROL);
 	control &= ~(M2P_CONTROL_STALLINT | M2P_CONTROL_NFBINT);
 	m2p_set_control(edmac, control);
+	spin_unlock_irqrestore(&edmac->lock, flags);
 
 	while (m2p_channel_state(edmac) >= M2P_STATE_ON)
-		cpu_relax();
+		schedule();
+}
 
+static void m2p_hw_shutdown(struct ep93xx_dma_chan *edmac)
+{
 	m2p_set_control(edmac, 0);
 
-	while (m2p_channel_state(edmac) == M2P_STATE_STALL)
-		cpu_relax();
+	while (m2p_channel_state(edmac) != M2P_STATE_IDLE)
+		dev_warn(chan2dev(edmac), "M2P: Not yet IDLE\n");
 }
 
 static void m2p_fill_desc(struct ep93xx_dma_chan *edmac)
@@ -1161,6 +1170,26 @@ fail:
 }
 
 /**
+ * ep93xx_dma_synchronize - Synchronizes the termination of transfers to the
+ * current context.
+ * @chan: channel
+ *
+ * Synchronizes the DMA channel termination to the current context. When this
+ * function returns it is guaranteed that all transfers for previously issued
+ * descriptors have stopped and and it is safe to free the memory associated
+ * with them. Furthermore it is guaranteed that all complete callback functions
+ * for a previously submitted descriptor have finished running and it is safe to
+ * free resources accessed from within the complete callbacks.
+ */
+static void ep93xx_dma_synchronize(struct dma_chan *chan)
+{
+	struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
+
+	if (edmac->edma->hw_synchronize)
+		edmac->edma->hw_synchronize(edmac);
+}
+
+/**
  * ep93xx_dma_terminate_all - terminate all transactions
  * @chan: channel
  *
@@ -1323,6 +1352,7 @@ static int __init ep93xx_dma_probe(struc
 	dma_dev->device_prep_slave_sg = ep93xx_dma_prep_slave_sg;
 	dma_dev->device_prep_dma_cyclic = ep93xx_dma_prep_dma_cyclic;
 	dma_dev->device_config = ep93xx_dma_slave_config;
+	dma_dev->device_synchronize = ep93xx_dma_synchronize;
 	dma_dev->device_terminate_all = ep93xx_dma_terminate_all;
 	dma_dev->device_issue_pending = ep93xx_dma_issue_pending;
 	dma_dev->device_tx_status = ep93xx_dma_tx_status;
@@ -1340,6 +1370,7 @@ static int __init ep93xx_dma_probe(struc
 	} else {
 		dma_cap_set(DMA_PRIVATE, dma_dev->cap_mask);
 
+		edma->hw_synchronize = m2p_hw_synchronize;
 		edma->hw_setup = m2p_hw_setup;
 		edma->hw_shutdown = m2p_hw_shutdown;
 		edma->hw_submit = m2p_hw_submit;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/imx-sdma.c linux-libre-4.9.52-gnu/drivers/dma/imx-sdma.c
--- linux-libre-4.9-gnu/drivers/dma/imx-sdma.c	2016-12-11 17:43:02.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/imx-sdma.c	2017-09-27 14:41:18.000000000 -0400
@@ -298,6 +298,7 @@ struct sdma_engine;
  * @event_id1		for channels that use 2 events
  * @word_size		peripheral access size
  * @buf_tail		ID of the buffer that was processed
+ * @buf_ptail		ID of the previous buffer that was processed
  * @num_bd		max NUM_BD. number of descriptors currently handling
  */
 struct sdma_channel {
@@ -309,6 +310,7 @@ struct sdma_channel {
 	unsigned int			event_id1;
 	enum dma_slave_buswidth		word_size;
 	unsigned int			buf_tail;
+	unsigned int			buf_ptail;
 	unsigned int			num_bd;
 	unsigned int			period_len;
 	struct sdma_buffer_descriptor	*bd;
@@ -700,6 +702,8 @@ static void sdma_update_channel_loop(str
 		sdmac->chn_real_count = bd->mode.count;
 		bd->mode.status |= BD_DONE;
 		bd->mode.count = sdmac->period_len;
+		sdmac->buf_ptail = sdmac->buf_tail;
+		sdmac->buf_tail = (sdmac->buf_tail + 1) % sdmac->num_bd;
 
 		/*
 		 * The callback is called from the interrupt context in order
@@ -710,9 +714,6 @@ static void sdma_update_channel_loop(str
 
 		dmaengine_desc_get_callback_invoke(&sdmac->desc, NULL);
 
-		sdmac->buf_tail++;
-		sdmac->buf_tail %= sdmac->num_bd;
-
 		if (error)
 			sdmac->status = old_status;
 	}
@@ -1186,6 +1187,8 @@ static struct dma_async_tx_descriptor *s
 	sdmac->flags = 0;
 
 	sdmac->buf_tail = 0;
+	sdmac->buf_ptail = 0;
+	sdmac->chn_real_count = 0;
 
 	dev_dbg(sdma->dev, "setting up %d entries for channel %d.\n",
 			sg_len, channel);
@@ -1288,6 +1291,8 @@ static struct dma_async_tx_descriptor *s
 	sdmac->status = DMA_IN_PROGRESS;
 
 	sdmac->buf_tail = 0;
+	sdmac->buf_ptail = 0;
+	sdmac->chn_real_count = 0;
 	sdmac->period_len = period_len;
 
 	sdmac->flags |= IMX_DMA_SG_LOOP;
@@ -1385,7 +1390,7 @@ static enum dma_status sdma_tx_status(st
 	u32 residue;
 
 	if (sdmac->flags & IMX_DMA_SG_LOOP)
-		residue = (sdmac->num_bd - sdmac->buf_tail) *
+		residue = (sdmac->num_bd - sdmac->buf_ptail) *
 			   sdmac->period_len - sdmac->chn_real_count;
 	else
 		residue = sdmac->chn_count - sdmac->chn_real_count;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/ioat/hw.h linux-libre-4.9.52-gnu/drivers/dma/ioat/hw.h
--- linux-libre-4.9-gnu/drivers/dma/ioat/hw.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/ioat/hw.h	2017-09-27 08:40:05.000000000 -0400
@@ -64,6 +64,8 @@
 #define PCI_DEVICE_ID_INTEL_IOAT_BDX8	0x6f2e
 #define PCI_DEVICE_ID_INTEL_IOAT_BDX9	0x6f2f
 
+#define PCI_DEVICE_ID_INTEL_IOAT_SKX	0x2021
+
 #define IOAT_VER_1_2            0x12    /* Version 1.2 */
 #define IOAT_VER_2_0            0x20    /* Version 2.0 */
 #define IOAT_VER_3_0            0x30    /* Version 3.0 */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/ioat/init.c linux-libre-4.9.52-gnu/drivers/dma/ioat/init.c
--- linux-libre-4.9-gnu/drivers/dma/ioat/init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/ioat/init.c	2017-09-27 08:40:05.000000000 -0400
@@ -106,6 +106,8 @@ static struct pci_device_id ioat_pci_tbl
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDX8) },
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BDX9) },
 
+	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_SKX) },
+
 	/* I/OAT v3.3 platforms */
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BWD0) },
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_IOAT_BWD1) },
@@ -243,10 +245,15 @@ static bool is_bdx_ioat(struct pci_dev *
 	}
 }
 
+static inline bool is_skx_ioat(struct pci_dev *pdev)
+{
+	return (pdev->device == PCI_DEVICE_ID_INTEL_IOAT_SKX) ? true : false;
+}
+
 static bool is_xeon_cb32(struct pci_dev *pdev)
 {
 	return is_jf_ioat(pdev) || is_snb_ioat(pdev) || is_ivb_ioat(pdev) ||
-		is_hsw_ioat(pdev) || is_bdx_ioat(pdev);
+		is_hsw_ioat(pdev) || is_bdx_ioat(pdev) || is_skx_ioat(pdev);
 }
 
 bool is_bwd_ioat(struct pci_dev *pdev)
@@ -691,7 +698,7 @@ static int ioat_alloc_chan_resources(str
 	/* doing 2 32bit writes to mmio since 1 64b write doesn't work */
 	ioat_chan->completion =
 		dma_pool_zalloc(ioat_chan->ioat_dma->completion_pool,
-				GFP_KERNEL, &ioat_chan->completion_dma);
+				GFP_NOWAIT, &ioat_chan->completion_dma);
 	if (!ioat_chan->completion)
 		return -ENOMEM;
 
@@ -701,7 +708,7 @@ static int ioat_alloc_chan_resources(str
 	       ioat_chan->reg_base + IOAT_CHANCMP_OFFSET_HIGH);
 
 	order = IOAT_MAX_ORDER;
-	ring = ioat_alloc_ring(c, order, GFP_KERNEL);
+	ring = ioat_alloc_ring(c, order, GFP_NOWAIT);
 	if (!ring)
 		return -ENOMEM;
 
@@ -1350,6 +1357,8 @@ static int ioat_pci_probe(struct pci_dev
 
 	device->version = readb(device->reg_base + IOAT_VER_OFFSET);
 	if (device->version >= IOAT_VER_3_0) {
+		if (is_skx_ioat(pdev))
+			device->version = IOAT_VER_3_2;
 		err = ioat3_dma_probe(device, ioat_dca_enabled);
 
 		if (device->version >= IOAT_VER_3_3)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/ipu/ipu_irq.c linux-libre-4.9.52-gnu/drivers/dma/ipu/ipu_irq.c
--- linux-libre-4.9-gnu/drivers/dma/ipu/ipu_irq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/ipu/ipu_irq.c	2017-09-27 08:40:05.000000000 -0400
@@ -272,7 +272,7 @@ static void ipu_irq_handler(struct irq_d
 	u32 status;
 	int i, line;
 
-	for (i = IPU_IRQ_NR_FN_BANKS; i < IPU_IRQ_NR_BANKS; i++) {
+	for (i = 0; i < IPU_IRQ_NR_BANKS; i++) {
 		struct ipu_irq_bank *bank = irq_bank + i;
 
 		raw_spin_lock(&bank_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/mv_xor_v2.c linux-libre-4.9.52-gnu/drivers/dma/mv_xor_v2.c
--- linux-libre-4.9-gnu/drivers/dma/mv_xor_v2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/mv_xor_v2.c	2017-09-27 08:40:05.000000000 -0400
@@ -161,6 +161,7 @@ struct mv_xor_v2_device {
 	struct mv_xor_v2_sw_desc *sw_desq;
 	int desc_size;
 	unsigned int npendings;
+	unsigned int hw_queue_idx;
 };
 
 /**
@@ -214,18 +215,6 @@ static void mv_xor_v2_set_data_buffers(s
 }
 
 /*
- * Return the next available index in the DESQ.
- */
-static int mv_xor_v2_get_desq_write_ptr(struct mv_xor_v2_device *xor_dev)
-{
-	/* read the index for the next available descriptor in the DESQ */
-	u32 reg = readl(xor_dev->dma_base + MV_XOR_V2_DMA_DESQ_ALLOC_OFF);
-
-	return ((reg >> MV_XOR_V2_DMA_DESQ_ALLOC_WRPTR_SHIFT)
-		& MV_XOR_V2_DMA_DESQ_ALLOC_WRPTR_MASK);
-}
-
-/*
  * notify the engine of new descriptors, and update the available index.
  */
 static void mv_xor_v2_add_desc_to_desq(struct mv_xor_v2_device *xor_dev,
@@ -257,22 +246,6 @@ static int mv_xor_v2_set_desc_size(struc
 	return MV_XOR_V2_EXT_DESC_SIZE;
 }
 
-/*
- * Set the IMSG threshold
- */
-static inline
-void mv_xor_v2_set_imsg_thrd(struct mv_xor_v2_device *xor_dev, int thrd_val)
-{
-	u32 reg;
-
-	reg = readl(xor_dev->dma_base + MV_XOR_V2_DMA_IMSG_THRD_OFF);
-
-	reg &= (~MV_XOR_V2_DMA_IMSG_THRD_MASK << MV_XOR_V2_DMA_IMSG_THRD_SHIFT);
-	reg |= (thrd_val << MV_XOR_V2_DMA_IMSG_THRD_SHIFT);
-
-	writel(reg, xor_dev->dma_base + MV_XOR_V2_DMA_IMSG_THRD_OFF);
-}
-
 static irqreturn_t mv_xor_v2_interrupt_handler(int irq, void *data)
 {
 	struct mv_xor_v2_device *xor_dev = data;
@@ -288,12 +261,6 @@ static irqreturn_t mv_xor_v2_interrupt_h
 	if (!ndescs)
 		return IRQ_NONE;
 
-	/*
-	 * Update IMSG threshold, to disable new IMSG interrupts until
-	 * end of the tasklet
-	 */
-	mv_xor_v2_set_imsg_thrd(xor_dev, MV_XOR_V2_DESC_NUM);
-
 	/* schedule a tasklet to handle descriptors callbacks */
 	tasklet_schedule(&xor_dev->irq_tasklet);
 
@@ -306,7 +273,6 @@ static irqreturn_t mv_xor_v2_interrupt_h
 static dma_cookie_t
 mv_xor_v2_tx_submit(struct dma_async_tx_descriptor *tx)
 {
-	int desq_ptr;
 	void *dest_hw_desc;
 	dma_cookie_t cookie;
 	struct mv_xor_v2_sw_desc *sw_desc =
@@ -322,15 +288,15 @@ mv_xor_v2_tx_submit(struct dma_async_tx_
 	spin_lock_bh(&xor_dev->lock);
 	cookie = dma_cookie_assign(tx);
 
-	/* get the next available slot in the DESQ */
-	desq_ptr = mv_xor_v2_get_desq_write_ptr(xor_dev);
-
 	/* copy the HW descriptor from the SW descriptor to the DESQ */
-	dest_hw_desc = xor_dev->hw_desq_virt + desq_ptr;
+	dest_hw_desc = xor_dev->hw_desq_virt + xor_dev->hw_queue_idx;
 
 	memcpy(dest_hw_desc, &sw_desc->hw_desc, xor_dev->desc_size);
 
 	xor_dev->npendings++;
+	xor_dev->hw_queue_idx++;
+	if (xor_dev->hw_queue_idx >= MV_XOR_V2_DESC_NUM)
+		xor_dev->hw_queue_idx = 0;
 
 	spin_unlock_bh(&xor_dev->lock);
 
@@ -344,6 +310,7 @@ static struct mv_xor_v2_sw_desc	*
 mv_xor_v2_prep_sw_desc(struct mv_xor_v2_device *xor_dev)
 {
 	struct mv_xor_v2_sw_desc *sw_desc;
+	bool found = false;
 
 	/* Lock the channel */
 	spin_lock_bh(&xor_dev->lock);
@@ -355,19 +322,23 @@ mv_xor_v2_prep_sw_desc(struct mv_xor_v2_
 		return NULL;
 	}
 
-	/* get a free SW descriptor from the SW DESQ */
-	sw_desc = list_first_entry(&xor_dev->free_sw_desc,
-				   struct mv_xor_v2_sw_desc, free_list);
+	list_for_each_entry(sw_desc, &xor_dev->free_sw_desc, free_list) {
+		if (async_tx_test_ack(&sw_desc->async_tx)) {
+			found = true;
+			break;
+		}
+	}
+
+	if (!found) {
+		spin_unlock_bh(&xor_dev->lock);
+		return NULL;
+	}
+
 	list_del(&sw_desc->free_list);
 
 	/* Release the channel */
 	spin_unlock_bh(&xor_dev->lock);
 
-	/* set the async tx descriptor */
-	dma_async_tx_descriptor_init(&sw_desc->async_tx, &xor_dev->dmachan);
-	sw_desc->async_tx.tx_submit = mv_xor_v2_tx_submit;
-	async_tx_ack(&sw_desc->async_tx);
-
 	return sw_desc;
 }
 
@@ -389,6 +360,8 @@ mv_xor_v2_prep_dma_memcpy(struct dma_cha
 		__func__, len, &src, &dest, flags);
 
 	sw_desc = mv_xor_v2_prep_sw_desc(xor_dev);
+	if (!sw_desc)
+		return NULL;
 
 	sw_desc->async_tx.flags = flags;
 
@@ -443,6 +416,8 @@ mv_xor_v2_prep_dma_xor(struct dma_chan *
 		__func__, src_cnt, len, &dest, flags);
 
 	sw_desc = mv_xor_v2_prep_sw_desc(xor_dev);
+	if (!sw_desc)
+		return NULL;
 
 	sw_desc->async_tx.flags = flags;
 
@@ -491,6 +466,8 @@ mv_xor_v2_prep_dma_interrupt(struct dma_
 		container_of(chan, struct mv_xor_v2_device, dmachan);
 
 	sw_desc = mv_xor_v2_prep_sw_desc(xor_dev);
+	if (!sw_desc)
+		return NULL;
 
 	/* set the HW descriptor */
 	hw_descriptor = &sw_desc->hw_desc;
@@ -554,7 +531,6 @@ static void mv_xor_v2_tasklet(unsigned l
 {
 	struct mv_xor_v2_device *xor_dev = (struct mv_xor_v2_device *) data;
 	int pending_ptr, num_of_pending, i;
-	struct mv_xor_v2_descriptor *next_pending_hw_desc = NULL;
 	struct mv_xor_v2_sw_desc *next_pending_sw_desc = NULL;
 
 	dev_dbg(xor_dev->dmadev.dev, "%s %d\n", __func__, __LINE__);
@@ -562,17 +538,10 @@ static void mv_xor_v2_tasklet(unsigned l
 	/* get the pending descriptors parameters */
 	num_of_pending = mv_xor_v2_get_pending_params(xor_dev, &pending_ptr);
 
-	/* next HW descriptor */
-	next_pending_hw_desc = xor_dev->hw_desq_virt + pending_ptr;
-
 	/* loop over free descriptors */
 	for (i = 0; i < num_of_pending; i++) {
-
-		if (pending_ptr > MV_XOR_V2_DESC_NUM)
-			pending_ptr = 0;
-
-		if (next_pending_sw_desc != NULL)
-			next_pending_hw_desc++;
+		struct mv_xor_v2_descriptor *next_pending_hw_desc =
+			xor_dev->hw_desq_virt + pending_ptr;
 
 		/* get the SW descriptor related to the HW descriptor */
 		next_pending_sw_desc =
@@ -608,15 +577,14 @@ static void mv_xor_v2_tasklet(unsigned l
 
 		/* increment the next descriptor */
 		pending_ptr++;
+		if (pending_ptr >= MV_XOR_V2_DESC_NUM)
+			pending_ptr = 0;
 	}
 
 	if (num_of_pending != 0) {
 		/* free the descriptores */
 		mv_xor_v2_free_desc_from_desq(xor_dev, num_of_pending);
 	}
-
-	/* Update IMSG threshold, to enable new IMSG interrupts */
-	mv_xor_v2_set_imsg_thrd(xor_dev, 0);
 }
 
 /*
@@ -648,9 +616,6 @@ static int mv_xor_v2_descq_init(struct m
 	writel((xor_dev->hw_desq & 0xFFFF00000000) >> 32,
 	       xor_dev->dma_base + MV_XOR_V2_DMA_DESQ_BAHR_OFF);
 
-	/* enable the DMA engine */
-	writel(0, xor_dev->dma_base + MV_XOR_V2_DMA_DESQ_STOP_OFF);
-
 	/*
 	 * This is a temporary solution, until we activate the
 	 * SMMU. Set the attributes for reading & writing data buffers
@@ -694,6 +659,9 @@ static int mv_xor_v2_descq_init(struct m
 	reg |= MV_XOR_V2_GLOB_PAUSE_AXI_TIME_DIS_VAL;
 	writel(reg, xor_dev->glob_base + MV_XOR_V2_GLOB_PAUSE);
 
+	/* enable the DMA engine */
+	writel(0, xor_dev->dma_base + MV_XOR_V2_DMA_DESQ_STOP_OFF);
+
 	return 0;
 }
 
@@ -725,6 +693,10 @@ static int mv_xor_v2_probe(struct platfo
 
 	platform_set_drvdata(pdev, xor_dev);
 
+	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40));
+	if (ret)
+		return ret;
+
 	xor_dev->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(xor_dev->clk) && PTR_ERR(xor_dev->clk) == -EPROBE_DEFER)
 		return -EPROBE_DEFER;
@@ -785,8 +757,15 @@ static int mv_xor_v2_probe(struct platfo
 
 	/* add all SW descriptors to the free list */
 	for (i = 0; i < MV_XOR_V2_DESC_NUM; i++) {
-		xor_dev->sw_desq[i].idx = i;
-		list_add(&xor_dev->sw_desq[i].free_list,
+		struct mv_xor_v2_sw_desc *sw_desc =
+			xor_dev->sw_desq + i;
+		sw_desc->idx = i;
+		dma_async_tx_descriptor_init(&sw_desc->async_tx,
+					     &xor_dev->dmachan);
+		sw_desc->async_tx.tx_submit = mv_xor_v2_tx_submit;
+		async_tx_ack(&sw_desc->async_tx);
+
+		list_add(&sw_desc->free_list,
 			 &xor_dev->free_sw_desc);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/omap-dma.c linux-libre-4.9.52-gnu/drivers/dma/omap-dma.c
--- linux-libre-4.9-gnu/drivers/dma/omap-dma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/omap-dma.c	2017-09-27 08:40:05.000000000 -0400
@@ -1339,6 +1339,7 @@ static int omap_dma_probe(struct platfor
 	struct omap_dmadev *od;
 	struct resource *res;
 	int rc, i, irq;
+	u32 lch_count;
 
 	od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL);
 	if (!od)
@@ -1381,20 +1382,31 @@ static int omap_dma_probe(struct platfor
 	spin_lock_init(&od->lock);
 	spin_lock_init(&od->irq_lock);
 
-	if (!pdev->dev.of_node) {
-		od->dma_requests = od->plat->dma_attr->lch_count;
-		if (unlikely(!od->dma_requests))
-			od->dma_requests = OMAP_SDMA_REQUESTS;
-	} else if (of_property_read_u32(pdev->dev.of_node, "dma-requests",
-					&od->dma_requests)) {
+	/* Number of DMA requests */
+	od->dma_requests = OMAP_SDMA_REQUESTS;
+	if (pdev->dev.of_node && of_property_read_u32(pdev->dev.of_node,
+						      "dma-requests",
+						      &od->dma_requests)) {
 		dev_info(&pdev->dev,
 			 "Missing dma-requests property, using %u.\n",
 			 OMAP_SDMA_REQUESTS);
-		od->dma_requests = OMAP_SDMA_REQUESTS;
 	}
 
-	od->lch_map = devm_kcalloc(&pdev->dev, od->dma_requests,
-				   sizeof(*od->lch_map), GFP_KERNEL);
+	/* Number of available logical channels */
+	if (!pdev->dev.of_node) {
+		lch_count = od->plat->dma_attr->lch_count;
+		if (unlikely(!lch_count))
+			lch_count = OMAP_SDMA_CHANNELS;
+	} else if (of_property_read_u32(pdev->dev.of_node, "dma-channels",
+					&lch_count)) {
+		dev_info(&pdev->dev,
+			 "Missing dma-channels property, using %u.\n",
+			 OMAP_SDMA_CHANNELS);
+		lch_count = OMAP_SDMA_CHANNELS;
+	}
+
+	od->lch_map = devm_kcalloc(&pdev->dev, lch_count, sizeof(*od->lch_map),
+				   GFP_KERNEL);
 	if (!od->lch_map)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/pl330.c linux-libre-4.9.52-gnu/drivers/dma/pl330.c
--- linux-libre-4.9-gnu/drivers/dma/pl330.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/pl330.c	2017-09-27 08:40:05.000000000 -0400
@@ -448,6 +448,9 @@ struct dma_pl330_chan {
 
 	/* for cyclic capability */
 	bool cyclic;
+
+	/* for runtime pm tracking */
+	bool active;
 };
 
 struct pl330_dmac {
@@ -2031,6 +2034,7 @@ static void pl330_tasklet(unsigned long
 		_stop(pch->thread);
 		spin_unlock(&pch->thread->dmac->lock);
 		power_down = true;
+		pch->active = false;
 	} else {
 		/* Make sure the PL330 Channel thread is active */
 		spin_lock(&pch->thread->dmac->lock);
@@ -2050,6 +2054,7 @@ static void pl330_tasklet(unsigned long
 			desc->status = PREP;
 			list_move_tail(&desc->node, &pch->work_list);
 			if (power_down) {
+				pch->active = true;
 				spin_lock(&pch->thread->dmac->lock);
 				_start(pch->thread);
 				spin_unlock(&pch->thread->dmac->lock);
@@ -2164,6 +2169,7 @@ static int pl330_terminate_all(struct dm
 	unsigned long flags;
 	struct pl330_dmac *pl330 = pch->dmac;
 	LIST_HEAD(list);
+	bool power_down = false;
 
 	pm_runtime_get_sync(pl330->ddma.dev);
 	spin_lock_irqsave(&pch->lock, flags);
@@ -2174,6 +2180,8 @@ static int pl330_terminate_all(struct dm
 	pch->thread->req[0].desc = NULL;
 	pch->thread->req[1].desc = NULL;
 	pch->thread->req_running = -1;
+	power_down = pch->active;
+	pch->active = false;
 
 	/* Mark all desc done */
 	list_for_each_entry(desc, &pch->submitted_list, node) {
@@ -2191,6 +2199,8 @@ static int pl330_terminate_all(struct dm
 	list_splice_tail_init(&pch->completed_list, &pl330->desc_pool);
 	spin_unlock_irqrestore(&pch->lock, flags);
 	pm_runtime_mark_last_busy(pl330->ddma.dev);
+	if (power_down)
+		pm_runtime_put_autosuspend(pl330->ddma.dev);
 	pm_runtime_put_autosuspend(pl330->ddma.dev);
 
 	return 0;
@@ -2350,6 +2360,7 @@ static void pl330_issue_pending(struct d
 		 * updated on work_list emptiness status.
 		 */
 		WARN_ON(list_empty(&pch->submitted_list));
+		pch->active = true;
 		pm_runtime_get_sync(pch->dmac->ddma.dev);
 	}
 	list_splice_tail_init(&pch->submitted_list, &pch->work_list);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/sh/rcar-dmac.c linux-libre-4.9.52-gnu/drivers/dma/sh/rcar-dmac.c
--- linux-libre-4.9-gnu/drivers/dma/sh/rcar-dmac.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/sh/rcar-dmac.c	2017-09-27 08:40:05.000000000 -0400
@@ -986,6 +986,7 @@ static void rcar_dmac_free_chan_resource
 {
 	struct rcar_dmac_chan *rchan = to_rcar_dmac_chan(chan);
 	struct rcar_dmac *dmac = to_rcar_dmac(chan->device);
+	struct rcar_dmac_chan_map *map = &rchan->map;
 	struct rcar_dmac_desc_page *page, *_page;
 	struct rcar_dmac_desc *desc;
 	LIST_HEAD(list);
@@ -1019,6 +1020,13 @@ static void rcar_dmac_free_chan_resource
 		free_page((unsigned long)page);
 	}
 
+	/* Remove slave mapping if present. */
+	if (map->slave.xfer_size) {
+		dma_unmap_resource(chan->device->dev, map->addr,
+				   map->slave.xfer_size, map->dir, 0);
+		map->slave.xfer_size = 0;
+	}
+
 	pm_runtime_put(chan->device->dev);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/sh/usb-dmac.c linux-libre-4.9.52-gnu/drivers/dma/sh/usb-dmac.c
--- linux-libre-4.9-gnu/drivers/dma/sh/usb-dmac.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/sh/usb-dmac.c	2017-09-27 08:40:05.000000000 -0400
@@ -117,7 +117,7 @@ struct usb_dmac {
 #define USB_DMASWR			0x0008
 #define USB_DMASWR_SWR			(1 << 0)
 #define USB_DMAOR			0x0060
-#define USB_DMAOR_AE			(1 << 2)
+#define USB_DMAOR_AE			(1 << 1)
 #define USB_DMAOR_DME			(1 << 0)
 
 #define USB_DMASAR			0x0000
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma/ti-dma-crossbar.c linux-libre-4.9.52-gnu/drivers/dma/ti-dma-crossbar.c
--- linux-libre-4.9-gnu/drivers/dma/ti-dma-crossbar.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma/ti-dma-crossbar.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,6 +149,7 @@ static int ti_am335x_xbar_probe(struct p
 	match = of_match_node(ti_am335x_master_match, dma_node);
 	if (!match) {
 		dev_err(&pdev->dev, "DMA master is not supported\n");
+		of_node_put(dma_node);
 		return -EINVAL;
 	}
 
@@ -339,6 +340,7 @@ static int ti_dra7_xbar_probe(struct pla
 	match = of_match_node(ti_dra7_master_match, dma_node);
 	if (!match) {
 		dev_err(&pdev->dev, "DMA master is not supported\n");
+		of_node_put(dma_node);
 		return -EINVAL;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/dma-buf/dma-buf.c linux-libre-4.9.52-gnu/drivers/dma-buf/dma-buf.c
--- linux-libre-4.9-gnu/drivers/dma-buf/dma-buf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/dma-buf/dma-buf.c	2017-09-27 08:40:05.000000000 -0400
@@ -303,6 +303,9 @@ static const struct file_operations dma_
 	.llseek		= dma_buf_llseek,
 	.poll		= dma_buf_poll,
 	.unlocked_ioctl	= dma_buf_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= dma_buf_ioctl,
+#endif
 };
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/extcon/extcon.c linux-libre-4.9.52-gnu/drivers/extcon/extcon.c
--- linux-libre-4.9-gnu/drivers/extcon/extcon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/extcon/extcon.c	2017-09-27 08:40:05.000000000 -0400
@@ -453,7 +453,7 @@ int extcon_sync(struct extcon_dev *edev,
 		dev_err(&edev->dev, "out of memory in extcon_set_state\n");
 		kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE);
 
-		return 0;
+		return -ENOMEM;
 	}
 
 	length = name_show(&edev->dev, NULL, prop_buf);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/efi/arm-runtime.c linux-libre-4.9.52-gnu/drivers/firmware/efi/arm-runtime.c
--- linux-libre-4.9-gnu/drivers/firmware/efi/arm-runtime.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/efi/arm-runtime.c	2017-09-27 08:40:05.000000000 -0400
@@ -65,6 +65,7 @@ static bool __init efi_virtmap_init(void
 	bool systab_found;
 
 	efi_mm.pgd = pgd_alloc(&efi_mm);
+	mm_init_cpumask(&efi_mm);
 	init_new_context(NULL, &efi_mm);
 
 	systab_found = false;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/efi/efi.c linux-libre-4.9.52-gnu/drivers/firmware/efi/efi.c
--- linux-libre-4.9-gnu/drivers/firmware/efi/efi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/efi/efi.c	2017-09-27 08:40:05.000000000 -0400
@@ -259,8 +259,10 @@ static __init int efivar_ssdt_load(void)
 		}
 
 		data = kmalloc(size, GFP_KERNEL);
-		if (!data)
+		if (!data) {
+			ret = -ENOMEM;
 			goto free_entry;
+		}
 
 		ret = efivar_entry_get(entry, NULL, &size, data);
 		if (ret) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/efi/fake_mem.c linux-libre-4.9.52-gnu/drivers/firmware/efi/fake_mem.c
--- linux-libre-4.9-gnu/drivers/firmware/efi/fake_mem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/efi/fake_mem.c	2017-09-27 08:40:05.000000000 -0400
@@ -71,8 +71,7 @@ void __init efi_fake_memmap(void)
 	}
 
 	/* allocate memory for new EFI memmap */
-	new_memmap_phy = memblock_alloc(efi.memmap.desc_size * new_nr_map,
-					PAGE_SIZE);
+	new_memmap_phy = efi_memmap_alloc(new_nr_map);
 	if (!new_memmap_phy)
 		return;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/efi/libstub/efistub.h linux-libre-4.9.52-gnu/drivers/firmware/efi/libstub/efistub.h
--- linux-libre-4.9-gnu/drivers/firmware/efi/libstub/efistub.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/efi/libstub/efistub.h	2017-09-27 08:40:05.000000000 -0400
@@ -30,14 +30,6 @@ efi_status_t efi_file_close(void *handle
 
 unsigned long get_dram_base(efi_system_table_t *sys_table_arg);
 
-efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
-			unsigned long orig_fdt_size,
-			void *fdt, int new_fdt_size, char *cmdline_ptr,
-			u64 initrd_addr, u64 initrd_size,
-			efi_memory_desc_t *memory_map,
-			unsigned long map_size, unsigned long desc_size,
-			u32 desc_ver);
-
 efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
 					    void *handle,
 					    unsigned long *new_fdt_addr,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/efi/libstub/fdt.c linux-libre-4.9.52-gnu/drivers/firmware/efi/libstub/fdt.c
--- linux-libre-4.9-gnu/drivers/firmware/efi/libstub/fdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/efi/libstub/fdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -16,13 +16,10 @@
 
 #include "efistub.h"
 
-efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
-			unsigned long orig_fdt_size,
-			void *fdt, int new_fdt_size, char *cmdline_ptr,
-			u64 initrd_addr, u64 initrd_size,
-			efi_memory_desc_t *memory_map,
-			unsigned long map_size, unsigned long desc_size,
-			u32 desc_ver)
+static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt,
+			       unsigned long orig_fdt_size,
+			       void *fdt, int new_fdt_size, char *cmdline_ptr,
+			       u64 initrd_addr, u64 initrd_size)
 {
 	int node, num_rsv;
 	int status;
@@ -101,25 +98,23 @@ efi_status_t update_fdt(efi_system_table
 	if (status)
 		goto fdt_set_fail;
 
-	fdt_val64 = cpu_to_fdt64((u64)(unsigned long)memory_map);
+	fdt_val64 = U64_MAX; /* placeholder */
 	status = fdt_setprop(fdt, node, "linux,uefi-mmap-start",
 			     &fdt_val64,  sizeof(fdt_val64));
 	if (status)
 		goto fdt_set_fail;
 
-	fdt_val32 = cpu_to_fdt32(map_size);
+	fdt_val32 = U32_MAX; /* placeholder */
 	status = fdt_setprop(fdt, node, "linux,uefi-mmap-size",
 			     &fdt_val32,  sizeof(fdt_val32));
 	if (status)
 		goto fdt_set_fail;
 
-	fdt_val32 = cpu_to_fdt32(desc_size);
 	status = fdt_setprop(fdt, node, "linux,uefi-mmap-desc-size",
 			     &fdt_val32, sizeof(fdt_val32));
 	if (status)
 		goto fdt_set_fail;
 
-	fdt_val32 = cpu_to_fdt32(desc_ver);
 	status = fdt_setprop(fdt, node, "linux,uefi-mmap-desc-ver",
 			     &fdt_val32, sizeof(fdt_val32));
 	if (status)
@@ -148,6 +143,43 @@ fdt_set_fail:
 	return EFI_LOAD_ERROR;
 }
 
+static efi_status_t update_fdt_memmap(void *fdt, struct efi_boot_memmap *map)
+{
+	int node = fdt_path_offset(fdt, "/chosen");
+	u64 fdt_val64;
+	u32 fdt_val32;
+	int err;
+
+	if (node < 0)
+		return EFI_LOAD_ERROR;
+
+	fdt_val64 = cpu_to_fdt64((unsigned long)*map->map);
+	err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-start",
+				  &fdt_val64, sizeof(fdt_val64));
+	if (err)
+		return EFI_LOAD_ERROR;
+
+	fdt_val32 = cpu_to_fdt32(*map->map_size);
+	err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-size",
+				  &fdt_val32, sizeof(fdt_val32));
+	if (err)
+		return EFI_LOAD_ERROR;
+
+	fdt_val32 = cpu_to_fdt32(*map->desc_size);
+	err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-desc-size",
+				  &fdt_val32, sizeof(fdt_val32));
+	if (err)
+		return EFI_LOAD_ERROR;
+
+	fdt_val32 = cpu_to_fdt32(*map->desc_ver);
+	err = fdt_setprop_inplace(fdt, node, "linux,uefi-mmap-desc-ver",
+				  &fdt_val32, sizeof(fdt_val32));
+	if (err)
+		return EFI_LOAD_ERROR;
+
+	return EFI_SUCCESS;
+}
+
 #ifndef EFI_FDT_ALIGN
 #define EFI_FDT_ALIGN EFI_PAGE_SIZE
 #endif
@@ -155,6 +187,7 @@ fdt_set_fail:
 struct exit_boot_struct {
 	efi_memory_desc_t *runtime_map;
 	int *runtime_entry_count;
+	void *new_fdt_addr;
 };
 
 static efi_status_t exit_boot_func(efi_system_table_t *sys_table_arg,
@@ -170,7 +203,7 @@ static efi_status_t exit_boot_func(efi_s
 	efi_get_virtmap(*map->map, *map->map_size, *map->desc_size,
 			p->runtime_map, p->runtime_entry_count);
 
-	return EFI_SUCCESS;
+	return update_fdt_memmap(p->new_fdt_addr, map);
 }
 
 /*
@@ -243,20 +276,10 @@ efi_status_t allocate_new_fdt_and_exit_b
 			goto fail;
 		}
 
-		/*
-		 * Now that we have done our final memory allocation (and free)
-		 * we can get the memory map key  needed for
-		 * exit_boot_services().
-		 */
-		status = efi_get_memory_map(sys_table, &map);
-		if (status != EFI_SUCCESS)
-			goto fail_free_new_fdt;
-
 		status = update_fdt(sys_table,
 				    (void *)fdt_addr, fdt_size,
 				    (void *)*new_fdt_addr, new_fdt_size,
-				    cmdline_ptr, initrd_addr, initrd_size,
-				    memory_map, map_size, desc_size, desc_ver);
+				    cmdline_ptr, initrd_addr, initrd_size);
 
 		/* Succeeding the first time is the expected case. */
 		if (status == EFI_SUCCESS)
@@ -266,22 +289,19 @@ efi_status_t allocate_new_fdt_and_exit_b
 			/*
 			 * We need to allocate more space for the new
 			 * device tree, so free existing buffer that is
-			 * too small.  Also free memory map, as we will need
-			 * to get new one that reflects the free/alloc we do
-			 * on the device tree buffer.
+			 * too small.
 			 */
 			efi_free(sys_table, new_fdt_size, *new_fdt_addr);
-			sys_table->boottime->free_pool(memory_map);
 			new_fdt_size += EFI_PAGE_SIZE;
 		} else {
 			pr_efi_err(sys_table, "Unable to construct new device tree.\n");
-			goto fail_free_mmap;
+			goto fail_free_new_fdt;
 		}
 	}
 
-	sys_table->boottime->free_pool(memory_map);
 	priv.runtime_map = runtime_map;
 	priv.runtime_entry_count = &runtime_entry_count;
+	priv.new_fdt_addr = (void *)*new_fdt_addr;
 	status = efi_exit_boot_services(sys_table, handle, &map, &priv,
 					exit_boot_func);
 
@@ -319,9 +339,6 @@ efi_status_t allocate_new_fdt_and_exit_b
 
 	pr_efi_err(sys_table, "Exit boot services failed.\n");
 
-fail_free_mmap:
-	sys_table->boottime->free_pool(memory_map);
-
 fail_free_new_fdt:
 	efi_free(sys_table, new_fdt_size, *new_fdt_addr);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/efi/libstub/gop.c linux-libre-4.9.52-gnu/drivers/firmware/efi/libstub/gop.c
--- linux-libre-4.9-gnu/drivers/firmware/efi/libstub/gop.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/efi/libstub/gop.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,7 +149,8 @@ setup_gop32(efi_system_table_t *sys_tabl
 
 		status = __gop_query32(sys_table_arg, gop32, &info, &size,
 				       &current_fb_base);
-		if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
+		if (status == EFI_SUCCESS && (!first_gop || conout_found) &&
+		    info->pixel_format != PIXEL_BLT_ONLY) {
 			/*
 			 * Systems that use the UEFI Console Splitter may
 			 * provide multiple GOP devices, not all of which are
@@ -266,7 +267,8 @@ setup_gop64(efi_system_table_t *sys_tabl
 
 		status = __gop_query64(sys_table_arg, gop64, &info, &size,
 				       &current_fb_base);
-		if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
+		if (status == EFI_SUCCESS && (!first_gop || conout_found) &&
+		    info->pixel_format != PIXEL_BLT_ONLY) {
 			/*
 			 * Systems that use the UEFI Console Splitter may
 			 * provide multiple GOP devices, not all of which are
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/efi/memmap.c linux-libre-4.9.52-gnu/drivers/firmware/efi/memmap.c
--- linux-libre-4.9-gnu/drivers/firmware/efi/memmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/efi/memmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -9,6 +9,44 @@
 #include <linux/efi.h>
 #include <linux/io.h>
 #include <asm/early_ioremap.h>
+#include <linux/memblock.h>
+#include <linux/slab.h>
+
+static phys_addr_t __init __efi_memmap_alloc_early(unsigned long size)
+{
+	return memblock_alloc(size, 0);
+}
+
+static phys_addr_t __init __efi_memmap_alloc_late(unsigned long size)
+{
+	unsigned int order = get_order(size);
+	struct page *p = alloc_pages(GFP_KERNEL, order);
+
+	if (!p)
+		return 0;
+
+	return PFN_PHYS(page_to_pfn(p));
+}
+
+/**
+ * efi_memmap_alloc - Allocate memory for the EFI memory map
+ * @num_entries: Number of entries in the allocated map.
+ *
+ * Depending on whether mm_init() has already been invoked or not,
+ * either memblock or "normal" page allocation is used.
+ *
+ * Returns the physical address of the allocated memory map on
+ * success, zero on failure.
+ */
+phys_addr_t __init efi_memmap_alloc(unsigned int num_entries)
+{
+	unsigned long size = num_entries * efi.memmap.desc_size;
+
+	if (slab_is_available())
+		return __efi_memmap_alloc_late(size);
+
+	return __efi_memmap_alloc_early(size);
+}
 
 /**
  * __efi_memmap_init - Common code for mapping the EFI memory map
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/firmware/qcom_scm-64.c linux-libre-4.9.52-gnu/drivers/firmware/qcom_scm-64.c
--- linux-libre-4.9-gnu/drivers/firmware/qcom_scm-64.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/firmware/qcom_scm-64.c	2017-09-27 08:40:05.000000000 -0400
@@ -91,6 +91,7 @@ static int qcom_scm_call(struct device *
 	dma_addr_t args_phys = 0;
 	void *args_virt = NULL;
 	size_t alloc_len;
+	struct arm_smccc_quirk quirk = {.id = ARM_SMCCC_QUIRK_QCOM_A6};
 
 	if (unlikely(arglen > N_REGISTER_ARGS)) {
 		alloc_len = N_EXT_QCOM_SCM_ARGS * sizeof(u64);
@@ -131,10 +132,16 @@ static int qcom_scm_call(struct device *
 					 qcom_smccc_convention,
 					 ARM_SMCCC_OWNER_SIP, fn_id);
 
+		quirk.state.a6 = 0;
+
 		do {
-			arm_smccc_smc(cmd, desc->arginfo, desc->args[0],
-				      desc->args[1], desc->args[2], x5, 0, 0,
-				      res);
+			arm_smccc_smc_quirk(cmd, desc->arginfo, desc->args[0],
+				      desc->args[1], desc->args[2], x5,
+				      quirk.state.a6, 0, res, &quirk);
+
+			if (res->a0 == QCOM_SCM_INTERRUPTED)
+				cmd = res->a0;
+
 		} while (res->a0 == QCOM_SCM_INTERRUPTED);
 
 		mutex_unlock(&qcom_scm_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpio/gpiolib-acpi.c linux-libre-4.9.52-gnu/drivers/gpio/gpiolib-acpi.c
--- linux-libre-4.9-gnu/drivers/gpio/gpiolib-acpi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpio/gpiolib-acpi.c	2017-09-27 08:40:05.000000000 -0400
@@ -571,8 +571,10 @@ struct gpio_desc *acpi_find_gpio(struct
 		}
 
 		desc = acpi_get_gpiod_by_index(adev, propname, idx, &info);
-		if (!IS_ERR(desc) || (PTR_ERR(desc) == -EPROBE_DEFER))
+		if (!IS_ERR(desc))
 			break;
+		if (PTR_ERR(desc) == -EPROBE_DEFER)
+			return ERR_CAST(desc);
 	}
 
 	/* Then from plain _CRS GPIOs */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpio/gpiolib.c linux-libre-4.9.52-gnu/drivers/gpio/gpiolib.c
--- linux-libre-4.9-gnu/drivers/gpio/gpiolib.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpio/gpiolib.c	2017-09-27 08:40:05.000000000 -0400
@@ -703,23 +703,23 @@ static irqreturn_t lineevent_irq_thread(
 {
 	struct lineevent_state *le = p;
 	struct gpioevent_data ge;
-	int ret;
+	int ret, level;
 
 	ge.timestamp = ktime_get_real_ns();
+	level = gpiod_get_value_cansleep(le->desc);
 
-	if (le->eflags & GPIOEVENT_REQUEST_BOTH_EDGES) {
-		int level = gpiod_get_value_cansleep(le->desc);
-
+	if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
+	    && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
 		if (level)
 			/* Emit low-to-high event */
 			ge.id = GPIOEVENT_EVENT_RISING_EDGE;
 		else
 			/* Emit high-to-low event */
 			ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
-	} else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE) {
+	} else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE && level) {
 		/* Emit low-to-high event */
 		ge.id = GPIOEVENT_EVENT_RISING_EDGE;
-	} else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
+	} else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE && !level) {
 		/* Emit high-to-low event */
 		ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
 	} else {
@@ -986,7 +986,8 @@ static int gpio_chrdev_open(struct inode
 		return -ENODEV;
 	get_device(&gdev->dev);
 	filp->private_data = gdev;
-	return 0;
+
+	return nonseekable_open(inode, filp);
 }
 
 /**
@@ -1011,7 +1012,7 @@ static const struct file_operations gpio
 	.release = gpio_chrdev_release,
 	.open = gpio_chrdev_open,
 	.owner = THIS_MODULE,
-	.llseek = noop_llseek,
+	.llseek = no_llseek,
 	.unlocked_ioctl = gpio_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = gpio_ioctl_compat,
@@ -1316,12 +1317,12 @@ void gpiochip_remove(struct gpio_chip *c
 
 	/* FIXME: should the legacy sysfs handling be moved to gpio_device? */
 	gpiochip_sysfs_unregister(gdev);
+	gpiochip_free_hogs(chip);
 	/* Numb the device, cancelling all outstanding operations */
 	gdev->chip = NULL;
 	gpiochip_irqchip_remove(chip);
 	acpi_gpiochip_remove(chip);
 	gpiochip_remove_pin_ranges(chip);
-	gpiochip_free_hogs(chip);
 	of_gpiochip_remove(chip);
 	/*
 	 * We accept no more calls into the driver from this point, so
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpio/gpio-omap.c linux-libre-4.9.52-gnu/drivers/gpio/gpio-omap.c
--- linux-libre-4.9-gnu/drivers/gpio/gpio-omap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpio/gpio-omap.c	2017-09-27 08:40:05.000000000 -0400
@@ -208,9 +208,11 @@ static inline void omap_gpio_dbck_disabl
  * OMAP's debounce time is in 31us steps
  *   <debounce time> = (GPIO_DEBOUNCINGTIME[7:0].DEBOUNCETIME + 1) x 31
  * so we need to convert and round up to the closest unit.
+ *
+ * Return: 0 on success, negative error otherwise.
  */
-static void omap2_set_gpio_debounce(struct gpio_bank *bank, unsigned offset,
-				    unsigned debounce)
+static int omap2_set_gpio_debounce(struct gpio_bank *bank, unsigned offset,
+				   unsigned debounce)
 {
 	void __iomem		*reg;
 	u32			val;
@@ -218,11 +220,12 @@ static void omap2_set_gpio_debounce(stru
 	bool			enable = !!debounce;
 
 	if (!bank->dbck_flag)
-		return;
+		return -ENOTSUPP;
 
 	if (enable) {
 		debounce = DIV_ROUND_UP(debounce, 31) - 1;
-		debounce &= OMAP4_GPIO_DEBOUNCINGTIME_MASK;
+		if ((debounce & OMAP4_GPIO_DEBOUNCINGTIME_MASK) != debounce)
+			return -EINVAL;
 	}
 
 	l = BIT(offset);
@@ -255,6 +258,8 @@ static void omap2_set_gpio_debounce(stru
 		bank->context.debounce = debounce;
 		bank->context.debounce_en = val;
 	}
+
+	return 0;
 }
 
 /**
@@ -964,14 +969,20 @@ static int omap_gpio_debounce(struct gpi
 {
 	struct gpio_bank *bank;
 	unsigned long flags;
+	int ret;
 
 	bank = gpiochip_get_data(chip);
 
 	raw_spin_lock_irqsave(&bank->lock, flags);
-	omap2_set_gpio_debounce(bank, offset, debounce);
+	ret = omap2_set_gpio_debounce(bank, offset, debounce);
 	raw_spin_unlock_irqrestore(&bank->lock, flags);
 
-	return 0;
+	if (ret)
+		dev_info(chip->parent,
+			 "Could not set line %u debounce to %u microseconds (%d)",
+			 offset, debounce, ret);
+
+	return ret;
 }
 
 static void omap_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpio/gpio-stmpe.c linux-libre-4.9.52-gnu/drivers/gpio/gpio-stmpe.c
--- linux-libre-4.9-gnu/drivers/gpio/gpio-stmpe.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpio/gpio-stmpe.c	2017-09-27 08:40:05.000000000 -0400
@@ -413,7 +413,7 @@ static irqreturn_t stmpe_gpio_irq(int ir
 		    stmpe->partnum != STMPE1801) {
 			stmpe_reg_write(stmpe, statmsbreg + i, status[i]);
 			stmpe_reg_write(stmpe,
-					stmpe->regs[STMPE_IDX_GPEDR_LSB + i],
+					stmpe->regs[STMPE_IDX_GPEDR_MSB] + i,
 					status[i]);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c	2017-09-27 08:40:05.000000000 -0400
@@ -693,6 +693,10 @@ int amdgpu_atombios_get_clock_info(struc
 			DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
 				 adev->clock.default_dispclk / 100);
 			adev->clock.default_dispclk = 60000;
+		} else if (adev->clock.default_dispclk <= 60000) {
+			DRM_INFO("Changing default dispclk from %dMhz to 625Mhz\n",
+				 adev->clock.default_dispclk / 100);
+			adev->clock.default_dispclk = 62500;
 		}
 		adev->clock.dp_extclk =
 			le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,6 +83,13 @@ int amdgpu_cs_get_ring(struct amdgpu_dev
 		}
 		break;
 	}
+
+	if (!(*out_ring && (*out_ring)->adev)) {
+		DRM_ERROR("Ring %d is not initialized on IP %d\n",
+			  ring, ip_type);
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c	2017-09-27 08:40:05.000000000 -0400
@@ -1419,6 +1419,9 @@ static ssize_t amdgpu_ttm_vram_read(stru
 	if (size & 0x3 || *pos & 0x3)
 		return -EINVAL;
 
+	if (*pos >= adev->mc.mc_vram_size)
+		return -ENXIO;
+
 	while (size) {
 		unsigned long flags;
 		uint32_t value;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c	2017-09-27 08:40:05.000000000 -0400
@@ -164,7 +164,7 @@ void amdgpu_atombios_crtc_powergate(stru
 	struct drm_device *dev = crtc->dev;
 	struct amdgpu_device *adev = dev->dev_private;
 	int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
-	ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
+	ENABLE_DISP_POWER_GATING_PS_ALLOCATION args;
 
 	memset(&args, 0, sizeof(args));
 
@@ -177,7 +177,7 @@ void amdgpu_atombios_crtc_powergate(stru
 void amdgpu_atombios_crtc_powergate_init(struct amdgpu_device *adev)
 {
 	int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
-	ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
+	ENABLE_DISP_POWER_GATING_PS_ALLOCATION args;
 
 	memset(&args, 0, sizeof(args));
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c	2016-12-11 17:41:31.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/ci_dpm.c	2017-09-27 14:38:17.000000000 -0400
@@ -897,6 +897,12 @@ static bool ci_dpm_vblank_too_short(stru
 	u32 vblank_time = amdgpu_dpm_get_vblank_time(adev);
 	u32 switch_limit = adev->mc.vram_type == AMDGPU_VRAM_TYPE_GDDR5 ? 450 : 300;
 
+	/* disable mclk switching if the refresh is >120Hz, even if the
+	 * blanking period would allow it
+	 */
+	if (amdgpu_dpm_get_vrefresh(adev) > 120)
+		return true;
+
 	if (vblank_time < switch_limit)
 		return true;
 	else
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c	2017-09-27 08:40:05.000000000 -0400
@@ -1173,23 +1173,10 @@ static u32 dce_v10_0_latency_watermark(s
 	a.full = dfixed_const(available_bandwidth);
 	b.full = dfixed_const(wm->num_heads);
 	a.full = dfixed_div(a, b);
+	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
+	tmp = min(dfixed_trunc(a), tmp);
 
-	b.full = dfixed_const(mc_latency + 512);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(b, c);
-
-	c.full = dfixed_const(dmif_size);
-	b.full = dfixed_div(c, b);
-
-	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
-
-	b.full = dfixed_const(1000);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(c, b);
-	c.full = dfixed_const(wm->bytes_per_pixel);
-	b.full = dfixed_mul(b, c);
-
-	lb_fill_bw = min(tmp, dfixed_trunc(b));
+	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
 
 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 	b.full = dfixed_const(1000);
@@ -1297,14 +1284,17 @@ static void dce_v10_0_program_watermarks
 {
 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
 	struct dce10_wm_params wm_low, wm_high;
-	u32 pixel_period;
+	u32 active_time;
 	u32 line_time = 0;
 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
 	u32 tmp, wm_mask, lb_vblank_lead_lines = 0;
 
 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
-		pixel_period = 1000000 / (u32)mode->clock;
-		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
+		active_time = (u32) div_u64((u64)mode->crtc_hdisplay * 1000000,
+					    (u32)mode->clock);
+		line_time = (u32) div_u64((u64)mode->crtc_htotal * 1000000,
+					  (u32)mode->clock);
+		line_time = min(line_time, (u32)65535);
 
 		/* watermark for high clocks */
 		if (adev->pm.dpm_enabled) {
@@ -1319,7 +1309,7 @@ static void dce_v10_0_program_watermarks
 
 		wm_high.disp_clk = mode->clock;
 		wm_high.src_width = mode->crtc_hdisplay;
-		wm_high.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_high.active_time = active_time;
 		wm_high.blank_time = line_time - wm_high.active_time;
 		wm_high.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1358,7 +1348,7 @@ static void dce_v10_0_program_watermarks
 
 		wm_low.disp_clk = mode->clock;
 		wm_low.src_width = mode->crtc_hdisplay;
-		wm_low.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_low.active_time = active_time;
 		wm_low.blank_time = line_time - wm_low.active_time;
 		wm_low.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -2577,6 +2567,9 @@ static int dce_v10_0_cursor_move_locked(
 	struct amdgpu_device *adev = crtc->dev->dev_private;
 	int xorigin = 0, yorigin = 0;
 
+	amdgpu_crtc->cursor_x = x;
+	amdgpu_crtc->cursor_y = y;
+
 	/* avivo cursor are offset into the total surface */
 	x += crtc->x;
 	y += crtc->y;
@@ -2596,9 +2589,6 @@ static int dce_v10_0_cursor_move_locked(
 	WREG32(mmCUR_SIZE + amdgpu_crtc->crtc_offset,
 	       ((amdgpu_crtc->cursor_width - 1) << 16) | (amdgpu_crtc->cursor_height - 1));
 
-	amdgpu_crtc->cursor_x = x;
-	amdgpu_crtc->cursor_y = y;
-
 	return 0;
 }
 
@@ -2661,12 +2651,11 @@ static int dce_v10_0_crtc_cursor_set2(st
 		return ret;
 	}
 
-	amdgpu_crtc->cursor_width = width;
-	amdgpu_crtc->cursor_height = height;
-
 	dce_v10_0_lock_cursor(crtc, true);
 
-	if (hot_x != amdgpu_crtc->cursor_hot_x ||
+	if (width != amdgpu_crtc->cursor_width ||
+	    height != amdgpu_crtc->cursor_height ||
+	    hot_x != amdgpu_crtc->cursor_hot_x ||
 	    hot_y != amdgpu_crtc->cursor_hot_y) {
 		int x, y;
 
@@ -2675,6 +2664,8 @@ static int dce_v10_0_crtc_cursor_set2(st
 
 		dce_v10_0_cursor_move_locked(crtc, x, y);
 
+		amdgpu_crtc->cursor_width = width;
+		amdgpu_crtc->cursor_height = height;
 		amdgpu_crtc->cursor_hot_x = hot_x;
 		amdgpu_crtc->cursor_hot_y = hot_y;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c	2017-09-27 08:40:05.000000000 -0400
@@ -1140,23 +1140,10 @@ static u32 dce_v11_0_latency_watermark(s
 	a.full = dfixed_const(available_bandwidth);
 	b.full = dfixed_const(wm->num_heads);
 	a.full = dfixed_div(a, b);
+	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
+	tmp = min(dfixed_trunc(a), tmp);
 
-	b.full = dfixed_const(mc_latency + 512);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(b, c);
-
-	c.full = dfixed_const(dmif_size);
-	b.full = dfixed_div(c, b);
-
-	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
-
-	b.full = dfixed_const(1000);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(c, b);
-	c.full = dfixed_const(wm->bytes_per_pixel);
-	b.full = dfixed_mul(b, c);
-
-	lb_fill_bw = min(tmp, dfixed_trunc(b));
+	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
 
 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 	b.full = dfixed_const(1000);
@@ -1264,14 +1251,17 @@ static void dce_v11_0_program_watermarks
 {
 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
 	struct dce10_wm_params wm_low, wm_high;
-	u32 pixel_period;
+	u32 active_time;
 	u32 line_time = 0;
 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
 	u32 tmp, wm_mask, lb_vblank_lead_lines = 0;
 
 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
-		pixel_period = 1000000 / (u32)mode->clock;
-		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
+		active_time = (u32) div_u64((u64)mode->crtc_hdisplay * 1000000,
+					    (u32)mode->clock);
+		line_time = (u32) div_u64((u64)mode->crtc_htotal * 1000000,
+					  (u32)mode->clock);
+		line_time = min(line_time, (u32)65535);
 
 		/* watermark for high clocks */
 		if (adev->pm.dpm_enabled) {
@@ -1286,7 +1276,7 @@ static void dce_v11_0_program_watermarks
 
 		wm_high.disp_clk = mode->clock;
 		wm_high.src_width = mode->crtc_hdisplay;
-		wm_high.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_high.active_time = active_time;
 		wm_high.blank_time = line_time - wm_high.active_time;
 		wm_high.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1325,7 +1315,7 @@ static void dce_v11_0_program_watermarks
 
 		wm_low.disp_clk = mode->clock;
 		wm_low.src_width = mode->crtc_hdisplay;
-		wm_low.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_low.active_time = active_time;
 		wm_low.blank_time = line_time - wm_low.active_time;
 		wm_low.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -2593,6 +2583,9 @@ static int dce_v11_0_cursor_move_locked(
 	struct amdgpu_device *adev = crtc->dev->dev_private;
 	int xorigin = 0, yorigin = 0;
 
+	amdgpu_crtc->cursor_x = x;
+	amdgpu_crtc->cursor_y = y;
+
 	/* avivo cursor are offset into the total surface */
 	x += crtc->x;
 	y += crtc->y;
@@ -2612,9 +2605,6 @@ static int dce_v11_0_cursor_move_locked(
 	WREG32(mmCUR_SIZE + amdgpu_crtc->crtc_offset,
 	       ((amdgpu_crtc->cursor_width - 1) << 16) | (amdgpu_crtc->cursor_height - 1));
 
-	amdgpu_crtc->cursor_x = x;
-	amdgpu_crtc->cursor_y = y;
-
 	return 0;
 }
 
@@ -2677,12 +2667,11 @@ static int dce_v11_0_crtc_cursor_set2(st
 		return ret;
 	}
 
-	amdgpu_crtc->cursor_width = width;
-	amdgpu_crtc->cursor_height = height;
-
 	dce_v11_0_lock_cursor(crtc, true);
 
-	if (hot_x != amdgpu_crtc->cursor_hot_x ||
+	if (width != amdgpu_crtc->cursor_width ||
+	    height != amdgpu_crtc->cursor_height ||
+	    hot_x != amdgpu_crtc->cursor_hot_x ||
 	    hot_y != amdgpu_crtc->cursor_hot_y) {
 		int x, y;
 
@@ -2691,6 +2680,8 @@ static int dce_v11_0_crtc_cursor_set2(st
 
 		dce_v11_0_cursor_move_locked(crtc, x, y);
 
+		amdgpu_crtc->cursor_width = width;
+		amdgpu_crtc->cursor_height = height;
 		amdgpu_crtc->cursor_hot_x = hot_x;
 		amdgpu_crtc->cursor_hot_y = hot_y;
 	}
@@ -3813,9 +3804,15 @@ static void dce_v11_0_encoder_add(struct
 	default:
 		encoder->possible_crtcs = 0x3;
 		break;
+	case 3:
+		encoder->possible_crtcs = 0x7;
+		break;
 	case 4:
 		encoder->possible_crtcs = 0xf;
 		break;
+	case 5:
+		encoder->possible_crtcs = 0x1f;
+		break;
 	case 6:
 		encoder->possible_crtcs = 0x3f;
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c	2017-09-27 08:40:05.000000000 -0400
@@ -932,23 +932,10 @@ static u32 dce_v6_0_latency_watermark(st
 	a.full = dfixed_const(available_bandwidth);
 	b.full = dfixed_const(wm->num_heads);
 	a.full = dfixed_div(a, b);
+	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
+	tmp = min(dfixed_trunc(a), tmp);
 
-	b.full = dfixed_const(mc_latency + 512);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(b, c);
-
-	c.full = dfixed_const(dmif_size);
-	b.full = dfixed_div(c, b);
-
-	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
-
-	b.full = dfixed_const(1000);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(c, b);
-	c.full = dfixed_const(wm->bytes_per_pixel);
-	b.full = dfixed_mul(b, c);
-
-	lb_fill_bw = min(tmp, dfixed_trunc(b));
+	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
 
 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 	b.full = dfixed_const(1000);
@@ -1057,18 +1044,21 @@ static void dce_v6_0_program_watermarks(
 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
 	struct dce6_wm_params wm_low, wm_high;
 	u32 dram_channels;
-	u32 pixel_period;
+	u32 active_time;
 	u32 line_time = 0;
 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
 	u32 priority_a_mark = 0, priority_b_mark = 0;
 	u32 priority_a_cnt = PRIORITY_OFF;
 	u32 priority_b_cnt = PRIORITY_OFF;
-	u32 tmp, arb_control3;
+	u32 tmp, arb_control3, lb_vblank_lead_lines = 0;
 	fixed20_12 a, b, c;
 
 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
-		pixel_period = 1000000 / (u32)mode->clock;
-		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
+		active_time = (u32) div_u64((u64)mode->crtc_hdisplay * 1000000,
+					    (u32)mode->clock);
+		line_time = (u32) div_u64((u64)mode->crtc_htotal * 1000000,
+					  (u32)mode->clock);
+		line_time = min(line_time, (u32)65535);
 		priority_a_cnt = 0;
 		priority_b_cnt = 0;
 
@@ -1087,7 +1077,7 @@ static void dce_v6_0_program_watermarks(
 
 		wm_high.disp_clk = mode->clock;
 		wm_high.src_width = mode->crtc_hdisplay;
-		wm_high.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_high.active_time = active_time;
 		wm_high.blank_time = line_time - wm_high.active_time;
 		wm_high.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1114,7 +1104,7 @@ static void dce_v6_0_program_watermarks(
 
 		wm_low.disp_clk = mode->clock;
 		wm_low.src_width = mode->crtc_hdisplay;
-		wm_low.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_low.active_time = active_time;
 		wm_low.blank_time = line_time - wm_low.active_time;
 		wm_low.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1175,6 +1165,8 @@ static void dce_v6_0_program_watermarks(
 		c.full = dfixed_div(c, a);
 		priority_b_mark = dfixed_trunc(c);
 		priority_b_cnt |= priority_b_mark & PRIORITY_MARK_MASK;
+
+		lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode->crtc_hdisplay);
 	}
 
 	/* select wm A */
@@ -1204,6 +1196,9 @@ static void dce_v6_0_program_watermarks(
 	/* save values for DPM */
 	amdgpu_crtc->line_time = line_time;
 	amdgpu_crtc->wm_high = latency_watermark_a;
+
+	/* Save number of lines the linebuffer leads before the scanout */
+	amdgpu_crtc->lb_vblank_lead_lines = lb_vblank_lead_lines;
 }
 
 /* watermark setup */
@@ -1933,6 +1928,9 @@ static int dce_v6_0_cursor_move_locked(s
 
 	int w = amdgpu_crtc->cursor_width;
 
+	amdgpu_crtc->cursor_x = x;
+	amdgpu_crtc->cursor_y = y;
+
 	/* avivo cursor are offset into the total surface */
 	x += crtc->x;
 	y += crtc->y;
@@ -1952,8 +1950,6 @@ static int dce_v6_0_cursor_move_locked(s
 	WREG32(EVERGREEN_CUR_SIZE + amdgpu_crtc->crtc_offset,
 	       ((w - 1) << 16) | (amdgpu_crtc->cursor_height - 1));
 
-	amdgpu_crtc->cursor_x = x;
-	amdgpu_crtc->cursor_y = y;
 	return 0;
 }
 
@@ -2016,12 +2012,11 @@ static int dce_v6_0_crtc_cursor_set2(str
 		return ret;
 	}
 
-	amdgpu_crtc->cursor_width = width;
-	amdgpu_crtc->cursor_height = height;
-
 	dce_v6_0_lock_cursor(crtc, true);
 
-	if (hot_x != amdgpu_crtc->cursor_hot_x ||
+	if (width != amdgpu_crtc->cursor_width ||
+	    height != amdgpu_crtc->cursor_height ||
+	    hot_x != amdgpu_crtc->cursor_hot_x ||
 	    hot_y != amdgpu_crtc->cursor_hot_y) {
 		int x, y;
 
@@ -2030,6 +2025,8 @@ static int dce_v6_0_crtc_cursor_set2(str
 
 		dce_v6_0_cursor_move_locked(crtc, x, y);
 
+		amdgpu_crtc->cursor_width = width;
+		amdgpu_crtc->cursor_height = height;
 		amdgpu_crtc->cursor_hot_x = hot_x;
 		amdgpu_crtc->cursor_hot_y = hot_y;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c	2017-09-27 08:40:05.000000000 -0400
@@ -1094,23 +1094,10 @@ static u32 dce_v8_0_latency_watermark(st
 	a.full = dfixed_const(available_bandwidth);
 	b.full = dfixed_const(wm->num_heads);
 	a.full = dfixed_div(a, b);
+	tmp = div_u64((u64) dmif_size * (u64) wm->disp_clk, mc_latency + 512);
+	tmp = min(dfixed_trunc(a), tmp);
 
-	b.full = dfixed_const(mc_latency + 512);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(b, c);
-
-	c.full = dfixed_const(dmif_size);
-	b.full = dfixed_div(c, b);
-
-	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
-
-	b.full = dfixed_const(1000);
-	c.full = dfixed_const(wm->disp_clk);
-	b.full = dfixed_div(c, b);
-	c.full = dfixed_const(wm->bytes_per_pixel);
-	b.full = dfixed_mul(b, c);
-
-	lb_fill_bw = min(tmp, dfixed_trunc(b));
+	lb_fill_bw = min(tmp, wm->disp_clk * wm->bytes_per_pixel / 1000);
 
 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 	b.full = dfixed_const(1000);
@@ -1218,14 +1205,17 @@ static void dce_v8_0_program_watermarks(
 {
 	struct drm_display_mode *mode = &amdgpu_crtc->base.mode;
 	struct dce8_wm_params wm_low, wm_high;
-	u32 pixel_period;
+	u32 active_time;
 	u32 line_time = 0;
 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
 	u32 tmp, wm_mask, lb_vblank_lead_lines = 0;
 
 	if (amdgpu_crtc->base.enabled && num_heads && mode) {
-		pixel_period = 1000000 / (u32)mode->clock;
-		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
+		active_time = (u32) div_u64((u64)mode->crtc_hdisplay * 1000000,
+					    (u32)mode->clock);
+		line_time = (u32) div_u64((u64)mode->crtc_htotal * 1000000,
+					  (u32)mode->clock);
+		line_time = min(line_time, (u32)65535);
 
 		/* watermark for high clocks */
 		if (adev->pm.dpm_enabled) {
@@ -1240,7 +1230,7 @@ static void dce_v8_0_program_watermarks(
 
 		wm_high.disp_clk = mode->clock;
 		wm_high.src_width = mode->crtc_hdisplay;
-		wm_high.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_high.active_time = active_time;
 		wm_high.blank_time = line_time - wm_high.active_time;
 		wm_high.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -1279,7 +1269,7 @@ static void dce_v8_0_program_watermarks(
 
 		wm_low.disp_clk = mode->clock;
 		wm_low.src_width = mode->crtc_hdisplay;
-		wm_low.active_time = mode->crtc_hdisplay * pixel_period;
+		wm_low.active_time = active_time;
 		wm_low.blank_time = line_time - wm_low.active_time;
 		wm_low.interlaced = false;
 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -2465,6 +2455,9 @@ static int dce_v8_0_cursor_move_locked(s
 	struct amdgpu_device *adev = crtc->dev->dev_private;
 	int xorigin = 0, yorigin = 0;
 
+	amdgpu_crtc->cursor_x = x;
+	amdgpu_crtc->cursor_y = y;
+
 	/* avivo cursor are offset into the total surface */
 	x += crtc->x;
 	y += crtc->y;
@@ -2484,9 +2477,6 @@ static int dce_v8_0_cursor_move_locked(s
 	WREG32(mmCUR_SIZE + amdgpu_crtc->crtc_offset,
 	       ((amdgpu_crtc->cursor_width - 1) << 16) | (amdgpu_crtc->cursor_height - 1));
 
-	amdgpu_crtc->cursor_x = x;
-	amdgpu_crtc->cursor_y = y;
-
 	return 0;
 }
 
@@ -2549,12 +2539,11 @@ static int dce_v8_0_crtc_cursor_set2(str
 		return ret;
 	}
 
-	amdgpu_crtc->cursor_width = width;
-	amdgpu_crtc->cursor_height = height;
-
 	dce_v8_0_lock_cursor(crtc, true);
 
-	if (hot_x != amdgpu_crtc->cursor_hot_x ||
+	if (width != amdgpu_crtc->cursor_width ||
+	    height != amdgpu_crtc->cursor_height ||
+	    hot_x != amdgpu_crtc->cursor_hot_x ||
 	    hot_y != amdgpu_crtc->cursor_hot_y) {
 		int x, y;
 
@@ -2563,6 +2552,8 @@ static int dce_v8_0_crtc_cursor_set2(str
 
 		dce_v8_0_cursor_move_locked(crtc, x, y);
 
+		amdgpu_crtc->cursor_width = width;
+		amdgpu_crtc->cursor_height = height;
 		amdgpu_crtc->cursor_hot_x = hot_x;
 		amdgpu_crtc->cursor_hot_y = hot_y;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c	2016-12-11 17:41:05.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c	2017-09-27 14:37:30.000000000 -0400
@@ -3902,8 +3902,12 @@ static int gfx_v8_0_init_save_restore_li
 	temp = mmRLC_SRM_INDEX_CNTL_ADDR_0;
 	data = mmRLC_SRM_INDEX_CNTL_DATA_0;
 	for (i = 0; i < sizeof(unique_indices) / sizeof(int); i++) {
-		amdgpu_mm_wreg(adev, temp + i, unique_indices[i] & 0x3FFFF, false);
-		amdgpu_mm_wreg(adev, data + i, unique_indices[i] >> 20, false);
+		if (unique_indices[i] != 0) {
+			amdgpu_mm_wreg(adev, temp + i,
+					unique_indices[i] & 0x3FFFF, false);
+			amdgpu_mm_wreg(adev, data + i,
+					unique_indices[i] >> 20, false);
+		}
 	}
 	kfree(register_list_format);
 
@@ -3949,7 +3953,7 @@ static void cz_enable_sck_slow_down_on_p
 
 static void cz_enable_cp_power_gating(struct amdgpu_device *adev, bool enable)
 {
-	WREG32_FIELD(RLC_PG_CNTL, CP_PG_DISABLE, enable ? 1 : 0);
+	WREG32_FIELD(RLC_PG_CNTL, CP_PG_DISABLE, enable ? 0 : 1);
 }
 
 static void gfx_v8_0_init_pg(struct amdgpu_device *adev)
@@ -5846,29 +5850,24 @@ static void gfx_v8_0_update_coarse_grain
 	adev->gfx.rlc.funcs->enter_safe_mode(adev);
 
 	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGCG)) {
-		/* 1 enable cntx_empty_int_enable/cntx_busy_int_enable/
-		 * Cmp_busy/GFX_Idle interrupts
-		 */
-		gfx_v8_0_enable_gui_idle_interrupt(adev, true);
-
 		temp1 = data1 =	RREG32(mmRLC_CGTT_MGCG_OVERRIDE);
 		data1 &= ~RLC_CGTT_MGCG_OVERRIDE__CGCG_MASK;
 		if (temp1 != data1)
 			WREG32(mmRLC_CGTT_MGCG_OVERRIDE, data1);
 
-		/* 2 wait for RLC_SERDES_CU_MASTER & RLC_SERDES_NONCU_MASTER idle */
+		/* : wait for RLC_SERDES_CU_MASTER & RLC_SERDES_NONCU_MASTER idle */
 		gfx_v8_0_wait_for_rlc_serdes(adev);
 
-		/* 3 - clear cgcg override */
+		/* 2 - clear cgcg override */
 		gfx_v8_0_send_serdes_cmd(adev, BPM_REG_CGCG_OVERRIDE, CLE_BPM_SERDES_CMD);
 
 		/* wait for RLC_SERDES_CU_MASTER & RLC_SERDES_NONCU_MASTER idle */
 		gfx_v8_0_wait_for_rlc_serdes(adev);
 
-		/* 4 - write cmd to set CGLS */
+		/* 3 - write cmd to set CGLS */
 		gfx_v8_0_send_serdes_cmd(adev, BPM_REG_CGLS_EN, SET_BPM_SERDES_CMD);
 
-		/* 5 - enable cgcg */
+		/* 4 - enable cgcg */
 		data |= RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK;
 
 		if (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGLS) {
@@ -5886,6 +5885,11 @@ static void gfx_v8_0_update_coarse_grain
 
 		if (temp != data)
 			WREG32(mmRLC_CGCG_CGLS_CTRL, data);
+
+		/* 5 enable cntx_empty_int_enable/cntx_busy_int_enable/
+		 * Cmp_busy/GFX_Idle interrupts
+		 */
+		gfx_v8_0_enable_gui_idle_interrupt(adev, true);
 	} else {
 		/* disable cntx_empty_int_enable & GFX Idle interrupt */
 		gfx_v8_0_enable_gui_idle_interrupt(adev, false);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c	2016-12-11 17:41:56.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c	2017-09-27 14:39:04.000000000 -0400
@@ -224,6 +224,9 @@ static void gmc_v6_0_mc_program(struct a
 	}
 	WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
 
+	if (adev->mode_info.num_crtc)
+		amdgpu_display_set_vga_render_state(adev, false);
+
 	gmc_v6_0_mc_stop(adev, &save);
 
 	if (gmc_v6_0_wait_for_idle((void *)adev)) {
@@ -253,7 +256,6 @@ static void gmc_v6_0_mc_program(struct a
 		dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 	}
 	gmc_v6_0_mc_resume(adev, &save);
-	amdgpu_display_set_vga_render_state(adev, false);
 }
 
 static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/si.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/si.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/si.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/si.c	2017-09-27 08:40:05.000000000 -0400
@@ -1301,6 +1301,7 @@ static void si_init_golden_registers(str
 		amdgpu_program_register_sequence(adev,
 						 pitcairn_mgcg_cgcg_init,
 						 (const u32)ARRAY_SIZE(pitcairn_mgcg_cgcg_init));
+		break;
 	case CHIP_VERDE:
 		amdgpu_program_register_sequence(adev,
 						 verde_golden_registers,
@@ -1325,6 +1326,7 @@ static void si_init_golden_registers(str
 		amdgpu_program_register_sequence(adev,
 						 oland_mgcg_cgcg_init,
 						 (const u32)ARRAY_SIZE(oland_mgcg_cgcg_init));
+		break;
 	case CHIP_HAINAN:
 		amdgpu_program_register_sequence(adev,
 						 hainan_golden_registers,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/si_dpm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/si_dpm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/si_dpm.c	2016-12-11 17:41:49.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/si_dpm.c	2017-09-27 14:38:51.000000000 -0400
@@ -3477,24 +3477,12 @@ static void si_apply_state_adjust_rules(
 		    (adev->pdev->device == 0x6817) ||
 		    (adev->pdev->device == 0x6806))
 			max_mclk = 120000;
-	} else if (adev->asic_type == CHIP_VERDE) {
-		if ((adev->pdev->revision == 0x81) ||
-		    (adev->pdev->revision == 0x83) ||
-		    (adev->pdev->revision == 0x87) ||
-		    (adev->pdev->device == 0x6820) ||
-		    (adev->pdev->device == 0x6821) ||
-		    (adev->pdev->device == 0x6822) ||
-		    (adev->pdev->device == 0x6823) ||
-		    (adev->pdev->device == 0x682A) ||
-		    (adev->pdev->device == 0x682B)) {
-			max_sclk = 75000;
-			max_mclk = 80000;
-		}
 	} else if (adev->asic_type == CHIP_OLAND) {
 		if ((adev->pdev->revision == 0xC7) ||
 		    (adev->pdev->revision == 0x80) ||
 		    (adev->pdev->revision == 0x81) ||
 		    (adev->pdev->revision == 0x83) ||
+		    (adev->pdev->revision == 0x87) ||
 		    (adev->pdev->device == 0x6604) ||
 		    (adev->pdev->device == 0x6605)) {
 			max_sclk = 75000;
@@ -3510,6 +3498,16 @@ static void si_apply_state_adjust_rules(
 			max_sclk = 75000;
 			max_mclk = 80000;
 		}
+	} else if (adev->asic_type == CHIP_OLAND) {
+		if ((adev->pdev->revision == 0xC7) ||
+		    (adev->pdev->revision == 0x80) ||
+		    (adev->pdev->revision == 0x81) ||
+		    (adev->pdev->revision == 0x83) ||
+		    (adev->pdev->revision == 0x87) ||
+		    (adev->pdev->device == 0x6604) ||
+		    (adev->pdev->device == 0x6605)) {
+			max_sclk = 75000;
+		}
 	}
 	/* Apply dpm quirks */
 	while (p && p->chip_device != 0) {
@@ -7675,49 +7673,51 @@ static int si_dpm_init_microcode(struct
 		chip_name = "tahiti";
 		break;
 	case CHIP_PITCAIRN:
-		if ((adev->pdev->revision == 0x81) ||
-		    (adev->pdev->device == 0x6810) ||
-		    (adev->pdev->device == 0x6811) ||
-		    (adev->pdev->device == 0x6816) ||
-		    (adev->pdev->device == 0x6817) ||
-		    (adev->pdev->device == 0x6806))
+		if ((adev->pdev->revision == 0x81) &&
+		    ((adev->pdev->device == 0x6810) ||
+		    (adev->pdev->device == 0x6811)))
 			chip_name = "pitcairn_k";
 		else
 			chip_name = "pitcairn";
 		break;
 	case CHIP_VERDE:
-		if ((adev->pdev->revision == 0x81) ||
-		    (adev->pdev->revision == 0x83) ||
-		    (adev->pdev->revision == 0x87) ||
-		    (adev->pdev->device == 0x6820) ||
-		    (adev->pdev->device == 0x6821) ||
-		    (adev->pdev->device == 0x6822) ||
-		    (adev->pdev->device == 0x6823) ||
-		    (adev->pdev->device == 0x682A) ||
-		    (adev->pdev->device == 0x682B))
+		if (((adev->pdev->device == 0x6820) &&
+			((adev->pdev->revision == 0x81) ||
+			(adev->pdev->revision == 0x83))) ||
+		    ((adev->pdev->device == 0x6821) &&
+			((adev->pdev->revision == 0x83) ||
+			(adev->pdev->revision == 0x87))) ||
+		    ((adev->pdev->revision == 0x87) &&
+			((adev->pdev->device == 0x6823) ||
+			(adev->pdev->device == 0x682b))))
 			chip_name = "verde_k";
 		else
 			chip_name = "verde";
 		break;
 	case CHIP_OLAND:
-		if ((adev->pdev->revision == 0xC7) ||
-		    (adev->pdev->revision == 0x80) ||
-		    (adev->pdev->revision == 0x81) ||
-		    (adev->pdev->revision == 0x83) ||
-		    (adev->pdev->device == 0x6604) ||
-		    (adev->pdev->device == 0x6605))
+		if (((adev->pdev->revision == 0x81) &&
+			((adev->pdev->device == 0x6600) ||
+			(adev->pdev->device == 0x6604) ||
+			(adev->pdev->device == 0x6605) ||
+			(adev->pdev->device == 0x6610))) ||
+		    ((adev->pdev->revision == 0x83) &&
+			(adev->pdev->device == 0x6610)))
 			chip_name = "oland_k";
 		else
 			chip_name = "oland";
 		break;
 	case CHIP_HAINAN:
-		if ((adev->pdev->revision == 0x81) ||
-		    (adev->pdev->revision == 0x83) ||
-		    (adev->pdev->revision == 0xC3) ||
-		    (adev->pdev->device == 0x6664) ||
-		    (adev->pdev->device == 0x6665) ||
-		    (adev->pdev->device == 0x6667))
+		if (((adev->pdev->revision == 0x81) &&
+			(adev->pdev->device == 0x6660)) ||
+		    ((adev->pdev->revision == 0x83) &&
+			((adev->pdev->device == 0x6660) ||
+			(adev->pdev->device == 0x6663) ||
+			(adev->pdev->device == 0x6665) ||
+			 (adev->pdev->device == 0x6667))))
 			chip_name = "hainan_k";
+		else if ((adev->pdev->revision == 0xc3) &&
+			 (adev->pdev->device == 0x6665))
+			chip_name = "banks_k_2";
 		else
 			chip_name = "hainan";
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c	2017-09-27 08:40:05.000000000 -0400
@@ -43,9 +43,13 @@
 
 #define GRBM_GFX_INDEX__VCE_INSTANCE__SHIFT	0x04
 #define GRBM_GFX_INDEX__VCE_INSTANCE_MASK	0x10
+#define GRBM_GFX_INDEX__VCE_ALL_PIPE		0x07
+
 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR0	0x8616
 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR1	0x8617
 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR2	0x8618
+#define mmGRBM_GFX_INDEX_DEFAULT 0xE0000000
+
 #define VCE_STATUS_VCPU_REPORT_FW_LOADED_MASK	0x02
 
 #define VCE_V3_0_FW_SIZE	(384 * 1024)
@@ -54,6 +58,9 @@
 
 #define FW_52_8_3	((52 << 24) | (8 << 16) | (3 << 8))
 
+#define GET_VCE_INSTANCE(i)  ((i) << GRBM_GFX_INDEX__VCE_INSTANCE__SHIFT \
+					| GRBM_GFX_INDEX__VCE_ALL_PIPE)
+
 static void vce_v3_0_mc_resume(struct amdgpu_device *adev, int idx);
 static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev);
 static void vce_v3_0_set_irq_funcs(struct amdgpu_device *adev);
@@ -249,7 +256,7 @@ static int vce_v3_0_start(struct amdgpu_
 		if (adev->vce.harvest_config & (1 << idx))
 			continue;
 
-		WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, idx);
+		WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(idx));
 		vce_v3_0_mc_resume(adev, idx);
 		WREG32_FIELD(VCE_STATUS, JOB_BUSY, 1);
 
@@ -273,7 +280,7 @@ static int vce_v3_0_start(struct amdgpu_
 		}
 	}
 
-	WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, 0);
+	WREG32(mmGRBM_GFX_INDEX, mmGRBM_GFX_INDEX_DEFAULT);
 	mutex_unlock(&adev->grbm_idx_mutex);
 
 	return 0;
@@ -288,7 +295,7 @@ static int vce_v3_0_stop(struct amdgpu_d
 		if (adev->vce.harvest_config & (1 << idx))
 			continue;
 
-		WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, idx);
+		WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(idx));
 
 		if (adev->asic_type >= CHIP_STONEY)
 			WREG32_P(mmVCE_VCPU_CNTL, 0, ~0x200001);
@@ -306,7 +313,7 @@ static int vce_v3_0_stop(struct amdgpu_d
 			vce_v3_0_set_vce_sw_clock_gating(adev, false);
 	}
 
-	WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, 0);
+	WREG32(mmGRBM_GFX_INDEX, mmGRBM_GFX_INDEX_DEFAULT);
 	mutex_unlock(&adev->grbm_idx_mutex);
 
 	return 0;
@@ -586,17 +593,17 @@ static bool vce_v3_0_check_soft_reset(vo
 	 * VCE team suggest use bit 3--bit 6 for busy status check
 	 */
 	mutex_lock(&adev->grbm_idx_mutex);
-	WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0);
+	WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(0));
 	if (RREG32(mmVCE_STATUS) & AMDGPU_VCE_STATUS_BUSY_MASK) {
 		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE0, 1);
 		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE1, 1);
 	}
-	WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0x10);
+	WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(1));
 	if (RREG32(mmVCE_STATUS) & AMDGPU_VCE_STATUS_BUSY_MASK) {
 		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE0, 1);
 		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE1, 1);
 	}
-	WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0);
+	WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(0));
 	mutex_unlock(&adev->grbm_idx_mutex);
 
 	if (srbm_soft_reset) {
@@ -734,7 +741,7 @@ static int vce_v3_0_set_clockgating_stat
 		if (adev->vce.harvest_config & (1 << i))
 			continue;
 
-		WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, i);
+		WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(i));
 
 		if (enable) {
 			/* initialize VCE_CLOCK_GATING_A: Clock ON/OFF delay */
@@ -753,7 +760,7 @@ static int vce_v3_0_set_clockgating_stat
 		vce_v3_0_set_vce_sw_clock_gating(adev, enable);
 	}
 
-	WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, 0);
+	WREG32(mmGRBM_GFX_INDEX, mmGRBM_GFX_INDEX_DEFAULT);
 	mutex_unlock(&adev->grbm_idx_mutex);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c	2017-09-27 08:40:05.000000000 -0400
@@ -200,7 +200,7 @@ int cz_dpm_powergate_vce(struct pp_hwmgr
 				cgs_set_clockgating_state(
 							hwmgr->device,
 							AMD_IP_BLOCK_TYPE_VCE,
-							AMD_CG_STATE_UNGATE);
+							AMD_CG_STATE_GATE);
 				cgs_set_powergating_state(
 							hwmgr->device,
 							AMD_IP_BLOCK_TYPE_VCE,
@@ -218,7 +218,7 @@ int cz_dpm_powergate_vce(struct pp_hwmgr
 				cgs_set_clockgating_state(
 							hwmgr->device,
 							AMD_IP_BLOCK_TYPE_VCE,
-							AMD_PG_STATE_GATE);
+							AMD_PG_STATE_UNGATE);
 				cz_dpm_update_vce_dpm(hwmgr);
 				cz_enable_disable_vce_dpm(hwmgr, true);
 				return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c	2017-09-27 08:40:05.000000000 -0400
@@ -1402,14 +1402,22 @@ int  cz_dpm_update_vce_dpm(struct pp_hwm
 					     cz_hwmgr->vce_dpm.hard_min_clk,
 						PPSMC_MSG_SetEclkHardMin));
 	} else {
-		/*EPR# 419220 -HW limitation to to */
-		cz_hwmgr->vce_dpm.hard_min_clk = hwmgr->vce_arbiter.ecclk;
-		smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
-					    PPSMC_MSG_SetEclkHardMin,
-					    cz_get_eclk_level(hwmgr,
-				     cz_hwmgr->vce_dpm.hard_min_clk,
-					  PPSMC_MSG_SetEclkHardMin));
-
+		/*Program HardMin based on the vce_arbiter.ecclk */
+		if (hwmgr->vce_arbiter.ecclk == 0) {
+			smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+					    PPSMC_MSG_SetEclkHardMin, 0);
+		/* disable ECLK DPM 0. Otherwise VCE could hang if
+		 * switching SCLK from DPM 0 to 6/7 */
+			smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+					PPSMC_MSG_SetEclkSoftMin, 1);
+		} else {
+			cz_hwmgr->vce_dpm.hard_min_clk = hwmgr->vce_arbiter.ecclk;
+			smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+						PPSMC_MSG_SetEclkHardMin,
+						cz_get_eclk_level(hwmgr,
+						cz_hwmgr->vce_dpm.hard_min_clk,
+						PPSMC_MSG_SetEclkHardMin));
+		}
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1958,6 +1958,12 @@ int fiji_thermal_setup_fan_table(struct
 	int res;
 	uint64_t tmp64;
 
+	if (hwmgr->thermal_controller.fanInfo.bNoFan) {
+		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+			PHM_PlatformCaps_MicrocodeFanControl);
+		return 0;
+	}
+
 	if (smu_data->smu7_data.fan_table_start == 0) {
 		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
 				PHM_PlatformCaps_MicrocodeFanControl);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smc.c	2017-09-27 08:40:05.000000000 -0400
@@ -2006,6 +2006,12 @@ int iceland_thermal_setup_fan_table(stru
 	if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl))
 		return 0;
 
+	if (hwmgr->thermal_controller.fanInfo.bNoFan) {
+		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+			PHM_PlatformCaps_MicrocodeFanControl);
+		return 0;
+	}
+
 	if (0 == smu7_data->fan_table_start) {
 		phm_cap_unset(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl);
 		return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1885,6 +1885,12 @@ int polaris10_thermal_setup_fan_table(st
 	int res;
 	uint64_t tmp64;
 
+	if (hwmgr->thermal_controller.fanInfo.bNoFan) {
+		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+			PHM_PlatformCaps_MicrocodeFanControl);
+		return 0;
+	}
+
 	if (smu_data->smu7_data.fan_table_start == 0) {
 		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
 				PHM_PlatformCaps_MicrocodeFanControl);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smc.c	2017-09-27 08:40:05.000000000 -0400
@@ -2496,6 +2496,12 @@ int tonga_thermal_setup_fan_table(struct
 					PHM_PlatformCaps_MicrocodeFanControl))
 		return 0;
 
+	if (hwmgr->thermal_controller.fanInfo.bNoFan) {
+		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
+			PHM_PlatformCaps_MicrocodeFanControl);
+		return 0;
+	}
+
 	if (0 == smu_data->smu7_data.fan_table_start) {
 		phm_cap_unset(hwmgr->platform_descriptor.platformCaps,
 					PHM_PlatformCaps_MicrocodeFanControl);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/ast/ast_drv.h linux-libre-4.9.52-gnu/drivers/gpu/drm/ast/ast_drv.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/ast/ast_drv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/ast/ast_drv.h	2017-09-27 08:40:05.000000000 -0400
@@ -113,6 +113,11 @@ struct ast_private {
 	struct ttm_bo_kmap_obj cache_kmap;
 	int next_cursor;
 	bool support_wide_screen;
+	enum {
+		ast_use_p2a,
+		ast_use_dt,
+		ast_use_defaults
+	} config_mode;
 
 	enum ast_tx_chip tx_chip_type;
 	u8 dp501_maxclk;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/ast/ast_main.c linux-libre-4.9.52-gnu/drivers/gpu/drm/ast/ast_main.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/ast/ast_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/ast/ast_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -62,13 +62,84 @@ uint8_t ast_get_index_reg_mask(struct as
 	return ret;
 }
 
+static void ast_detect_config_mode(struct drm_device *dev, u32 *scu_rev)
+{
+	struct device_node *np = dev->pdev->dev.of_node;
+	struct ast_private *ast = dev->dev_private;
+	uint32_t data, jregd0, jregd1;
+
+	/* Defaults */
+	ast->config_mode = ast_use_defaults;
+	*scu_rev = 0xffffffff;
+
+	/* Check if we have device-tree properties */
+	if (np && !of_property_read_u32(np, "aspeed,scu-revision-id",
+					scu_rev)) {
+		/* We do, disable P2A access */
+		ast->config_mode = ast_use_dt;
+		DRM_INFO("Using device-tree for configuration\n");
+		return;
+	}
+
+	/* Not all families have a P2A bridge */
+	if (dev->pdev->device != PCI_CHIP_AST2000)
+		return;
+
+	/*
+	 * The BMC will set SCU 0x40 D[12] to 1 if the P2 bridge
+	 * is disabled. We force using P2A if VGA only mode bit
+	 * is set D[7]
+	 */
+	jregd0 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
+	jregd1 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
+	if (!(jregd0 & 0x80) || !(jregd1 & 0x10)) {
+		/* Double check it's actually working */
+		data = ast_read32(ast, 0xf004);
+		if (data != 0xFFFFFFFF) {
+			/* P2A works, grab silicon revision */
+			ast->config_mode = ast_use_p2a;
+
+			DRM_INFO("Using P2A bridge for configuration\n");
+
+			/* Read SCU7c (silicon revision register) */
+			ast_write32(ast, 0xf004, 0x1e6e0000);
+			ast_write32(ast, 0xf000, 0x1);
+			*scu_rev = ast_read32(ast, 0x1207c);
+			return;
+		}
+	}
+
+	/* We have a P2A bridge but it's disabled */
+	DRM_INFO("P2A bridge disabled, using default configuration\n");
+}
 
 static int ast_detect_chip(struct drm_device *dev, bool *need_post)
 {
 	struct ast_private *ast = dev->dev_private;
-	uint32_t data, jreg;
+	uint32_t jreg, scu_rev;
+
+	/*
+	 * If VGA isn't enabled, we need to enable now or subsequent
+	 * access to the scratch registers will fail. We also inform
+	 * our caller that it needs to POST the chip
+	 * (Assumption: VGA not enabled -> need to POST)
+	 */
+	if (!ast_is_vga_enabled(dev)) {
+		ast_enable_vga(dev);
+		DRM_INFO("VGA not enabled on entry, requesting chip POST\n");
+		*need_post = true;
+	} else
+		*need_post = false;
+
+
+	/* Enable extended register access */
+	ast_enable_mmio(dev);
 	ast_open_key(ast);
 
+	/* Find out whether P2A works or whether to use device-tree */
+	ast_detect_config_mode(dev, &scu_rev);
+
+	/* Identify chipset */
 	if (dev->pdev->device == PCI_CHIP_AST1180) {
 		ast->chip = AST1100;
 		DRM_INFO("AST 1180 detected\n");
@@ -80,12 +151,7 @@ static int ast_detect_chip(struct drm_de
 			ast->chip = AST2300;
 			DRM_INFO("AST 2300 detected\n");
 		} else if (dev->pdev->revision >= 0x10) {
-			uint32_t data;
-			ast_write32(ast, 0xf004, 0x1e6e0000);
-			ast_write32(ast, 0xf000, 0x1);
-
-			data = ast_read32(ast, 0x1207c);
-			switch (data & 0x0300) {
+			switch (scu_rev & 0x0300) {
 			case 0x0200:
 				ast->chip = AST1100;
 				DRM_INFO("AST 1100 detected\n");
@@ -110,20 +176,6 @@ static int ast_detect_chip(struct drm_de
 		}
 	}
 
-	/*
-	 * If VGA isn't enabled, we need to enable now or subsequent
-	 * access to the scratch registers will fail. We also inform
-	 * our caller that it needs to POST the chip
-	 * (Assumption: VGA not enabled -> need to POST)
-	 */
-	if (!ast_is_vga_enabled(dev)) {
-		ast_enable_vga(dev);
-		ast_enable_mmio(dev);
-		DRM_INFO("VGA not enabled on entry, requesting chip POST\n");
-		*need_post = true;
-	} else
-		*need_post = false;
-
 	/* Check if we support wide screen */
 	switch (ast->chip) {
 	case AST1180:
@@ -140,14 +192,11 @@ static int ast_detect_chip(struct drm_de
 			ast->support_wide_screen = true;
 		else {
 			ast->support_wide_screen = false;
-			/* Read SCU7c (silicon revision register) */
-			ast_write32(ast, 0xf004, 0x1e6e0000);
-			ast_write32(ast, 0xf000, 0x1);
-			data = ast_read32(ast, 0x1207c);
-			data &= 0x300;
-			if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
+			if (ast->chip == AST2300 &&
+			    (scu_rev & 0x300) == 0x0) /* ast1300 */
 				ast->support_wide_screen = true;
-			if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
+			if (ast->chip == AST2400 &&
+			    (scu_rev & 0x300) == 0x100) /* ast1400 */
 				ast->support_wide_screen = true;
 		}
 		break;
@@ -212,28 +261,49 @@ static int ast_detect_chip(struct drm_de
 
 static int ast_get_dram_info(struct drm_device *dev)
 {
+	struct device_node *np = dev->pdev->dev.of_node;
 	struct ast_private *ast = dev->dev_private;
-	uint32_t data, data2;
-	uint32_t denum, num, div, ref_pll;
-
-	ast_write32(ast, 0xf004, 0x1e6e0000);
-	ast_write32(ast, 0xf000, 0x1);
-
-
-	ast_write32(ast, 0x10000, 0xfc600309);
+	uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap;
+	uint32_t denum, num, div, ref_pll, dsel;
 
-	do {
-		;
-	} while (ast_read32(ast, 0x10000) != 0x01);
-	data = ast_read32(ast, 0x10004);
+	switch (ast->config_mode) {
+	case ast_use_dt:
+		/*
+		 * If some properties are missing, use reasonable
+		 * defaults for AST2400
+		 */
+		if (of_property_read_u32(np, "aspeed,mcr-configuration",
+					 &mcr_cfg))
+			mcr_cfg = 0x00000577;
+		if (of_property_read_u32(np, "aspeed,mcr-scu-mpll",
+					 &mcr_scu_mpll))
+			mcr_scu_mpll = 0x000050C0;
+		if (of_property_read_u32(np, "aspeed,mcr-scu-strap",
+					 &mcr_scu_strap))
+			mcr_scu_strap = 0;
+		break;
+	case ast_use_p2a:
+		ast_write32(ast, 0xf004, 0x1e6e0000);
+		ast_write32(ast, 0xf000, 0x1);
+		mcr_cfg = ast_read32(ast, 0x10004);
+		mcr_scu_mpll = ast_read32(ast, 0x10120);
+		mcr_scu_strap = ast_read32(ast, 0x10170);
+		break;
+	case ast_use_defaults:
+	default:
+		ast->dram_bus_width = 16;
+		ast->dram_type = AST_DRAM_1Gx16;
+		ast->mclk = 396;
+		return 0;
+	}
 
-	if (data & 0x40)
+	if (mcr_cfg & 0x40)
 		ast->dram_bus_width = 16;
 	else
 		ast->dram_bus_width = 32;
 
 	if (ast->chip == AST2300 || ast->chip == AST2400) {
-		switch (data & 0x03) {
+		switch (mcr_cfg & 0x03) {
 		case 0:
 			ast->dram_type = AST_DRAM_512Mx16;
 			break;
@@ -249,13 +319,13 @@ static int ast_get_dram_info(struct drm_
 			break;
 		}
 	} else {
-		switch (data & 0x0c) {
+		switch (mcr_cfg & 0x0c) {
 		case 0:
 		case 4:
 			ast->dram_type = AST_DRAM_512Mx16;
 			break;
 		case 8:
-			if (data & 0x40)
+			if (mcr_cfg & 0x40)
 				ast->dram_type = AST_DRAM_1Gx16;
 			else
 				ast->dram_type = AST_DRAM_512Mx32;
@@ -266,17 +336,15 @@ static int ast_get_dram_info(struct drm_
 		}
 	}
 
-	data = ast_read32(ast, 0x10120);
-	data2 = ast_read32(ast, 0x10170);
-	if (data2 & 0x2000)
+	if (mcr_scu_strap & 0x2000)
 		ref_pll = 14318;
 	else
 		ref_pll = 12000;
 
-	denum = data & 0x1f;
-	num = (data & 0x3fe0) >> 5;
-	data = (data & 0xc000) >> 14;
-	switch (data) {
+	denum = mcr_scu_mpll & 0x1f;
+	num = (mcr_scu_mpll & 0x3fe0) >> 5;
+	dsel = (mcr_scu_mpll & 0xc000) >> 14;
+	switch (dsel) {
 	case 3:
 		div = 0x4;
 		break;
@@ -428,7 +496,9 @@ int ast_driver_load(struct drm_device *d
 	ast_detect_chip(dev, &need_post);
 
 	if (ast->chip != AST1180) {
-		ast_get_dram_info(dev);
+		ret = ast_get_dram_info(dev);
+		if (ret)
+			goto out_free;
 		ast->vram_size = ast_get_vram_info(dev);
 		DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/ast/ast_post.c linux-libre-4.9.52-gnu/drivers/gpu/drm/ast/ast_post.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/ast/ast_post.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/ast/ast_post.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,13 +58,9 @@ bool ast_is_vga_enabled(struct drm_devic
 		/* TODO 1180 */
 	} else {
 		ch = ast_io_read8(ast, AST_IO_VGA_ENABLE_PORT);
-		if (ch) {
-			ast_open_key(ast);
-			ch = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xff);
-			return ch & 0x04;
-		}
+		return !!(ch & 0x01);
 	}
-	return 0;
+	return false;
 }
 
 static const u8 extreginfo[] = { 0x0f, 0x04, 0x1c, 0xff };
@@ -375,16 +371,21 @@ void ast_post_gpu(struct drm_device *dev
 	pci_write_config_dword(ast->dev->pdev, 0x04, reg);
 
 	ast_enable_vga(dev);
-	ast_enable_mmio(dev);
 	ast_open_key(ast);
+	ast_enable_mmio(dev);
 	ast_set_def_ext_reg(dev);
 
-	if (ast->chip == AST2300 || ast->chip == AST2400)
-		ast_init_dram_2300(dev);
-	else
-		ast_init_dram_reg(dev);
+	if (ast->config_mode == ast_use_p2a) {
+		if (ast->chip == AST2300 || ast->chip == AST2400)
+			ast_init_dram_2300(dev);
+		else
+			ast_init_dram_reg(dev);
 
-	ast_init_3rdtx(dev);
+		ast_init_3rdtx(dev);
+	} else {
+		if (ast->tx_chip_type != AST_TX_NONE)
+			ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xcf, 0x80);	/* Enable DVO */
+	}
 }
 
 /* AST 2300 DRAM settings */
@@ -1630,12 +1631,44 @@ static void ast_init_dram_2300(struct dr
 		temp |= 0x73;
 		ast_write32(ast, 0x12008, temp);
 
+		param.dram_freq = 396;
 		param.dram_type = AST_DDR3;
+		temp = ast_mindwm(ast, 0x1e6e2070);
 		if (temp & 0x01000000)
 			param.dram_type = AST_DDR2;
-		param.dram_chipid = ast->dram_type;
-		param.dram_freq = ast->mclk;
-		param.vram_size = ast->vram_size;
+                switch (temp & 0x18000000) {
+		case 0:
+			param.dram_chipid = AST_DRAM_512Mx16;
+			break;
+		default:
+		case 0x08000000:
+			param.dram_chipid = AST_DRAM_1Gx16;
+			break;
+		case 0x10000000:
+			param.dram_chipid = AST_DRAM_2Gx16;
+			break;
+		case 0x18000000:
+			param.dram_chipid = AST_DRAM_4Gx16;
+			break;
+		}
+                switch (temp & 0x0c) {
+                default:
+		case 0x00:
+			param.vram_size = AST_VIDMEM_SIZE_8M;
+			break;
+
+		case 0x04:
+			param.vram_size = AST_VIDMEM_SIZE_16M;
+			break;
+
+		case 0x08:
+			param.vram_size = AST_VIDMEM_SIZE_32M;
+			break;
+
+		case 0x0c:
+			param.vram_size = AST_VIDMEM_SIZE_64M;
+			break;
+		}
 
 		if (param.dram_type == AST_DDR3) {
 			get_ddr3_info(ast, &param);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -402,6 +402,27 @@ static bool adv7511_hpd(struct adv7511 *
 	return false;
 }
 
+static void adv7511_hpd_work(struct work_struct *work)
+{
+	struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
+	enum drm_connector_status status;
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
+	if (ret < 0)
+		status = connector_status_disconnected;
+	else if (val & ADV7511_STATUS_HPD)
+		status = connector_status_connected;
+	else
+		status = connector_status_disconnected;
+
+	if (adv7511->connector.status != status) {
+		adv7511->connector.status = status;
+		drm_kms_helper_hotplug_event(adv7511->connector.dev);
+	}
+}
+
 static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
 {
 	unsigned int irq0, irq1;
@@ -419,7 +440,7 @@ static int adv7511_irq_process(struct ad
 	regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
 
 	if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder)
-		drm_helper_hpd_irq_event(adv7511->connector.dev);
+		schedule_work(&adv7511->hpd_work);
 
 	if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
 		adv7511->edid_read = true;
@@ -1006,6 +1027,8 @@ static int adv7511_probe(struct i2c_clie
 			goto err_i2c_unregister_edid;
 	}
 
+	INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
+
 	if (i2c->irq) {
 		init_waitqueue_head(&adv7511->wq);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/bridge/adv7511/adv7511.h linux-libre-4.9.52-gnu/drivers/gpu/drm/bridge/adv7511/adv7511.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/bridge/adv7511/adv7511.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/bridge/adv7511/adv7511.h	2017-09-27 08:40:05.000000000 -0400
@@ -315,6 +315,8 @@ struct adv7511 {
 	bool edid_read;
 
 	wait_queue_head_t wq;
+	struct work_struct hpd_work;
+
 	struct drm_bridge bridge;
 	struct drm_connector connector;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c linux-libre-4.9.52-gnu/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1382,6 +1382,7 @@ int analogix_dp_bind(struct device *dev,
 
 	pm_runtime_enable(dev);
 
+	pm_runtime_get_sync(dev);
 	phy_power_on(dp->phy);
 
 	analogix_dp_init_dp(dp);
@@ -1414,9 +1415,15 @@ int analogix_dp_bind(struct device *dev,
 		goto err_disable_pm_runtime;
 	}
 
+	phy_power_off(dp->phy);
+	pm_runtime_put(dev);
+
 	return 0;
 
 err_disable_pm_runtime:
+
+	phy_power_off(dp->phy);
+	pm_runtime_put(dev);
 	pm_runtime_disable(dev);
 
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_atomic.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_atomic.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_atomic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_atomic.c	2017-09-27 08:40:05.000000000 -0400
@@ -1386,6 +1386,9 @@ int drm_atomic_check_only(struct drm_ato
 	if (config->funcs->atomic_check)
 		ret = config->funcs->atomic_check(state->dev, state);
 
+	if (ret)
+		return ret;
+
 	if (!state->allow_modeset) {
 		for_each_crtc_in_state(state, crtc, crtc_state, i) {
 			if (drm_atomic_crtc_needs_modeset(crtc_state)) {
@@ -1396,7 +1399,7 @@ int drm_atomic_check_only(struct drm_ato
 		}
 	}
 
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL(drm_atomic_check_only);
 
@@ -1759,16 +1762,16 @@ out:
 
 	if (ret && arg->flags & DRM_MODE_PAGE_FLIP_EVENT) {
 		/*
-		 * TEST_ONLY and PAGE_FLIP_EVENT are mutually exclusive,
-		 * if they weren't, this code should be called on success
-		 * for TEST_ONLY too.
+		 * Free the allocated event. drm_atomic_helper_setup_commit
+		 * can allocate an event too, so only free it if it's ours
+		 * to prevent a double free in drm_atomic_state_clear.
 		 */
-
 		for_each_crtc_in_state(state, crtc, crtc_state, i) {
-			if (!crtc_state->event)
-				continue;
-
-			drm_event_cancel_free(dev, &crtc_state->event->base);
+			struct drm_pending_vblank_event *event = crtc_state->event;
+			if (event && (event->base.fence || event->base.file_priv)) {
+				drm_event_cancel_free(dev, &event->base);
+				crtc_state->event = NULL;
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_atomic_helper.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_atomic_helper.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_atomic_helper.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_atomic_helper.c	2017-09-27 08:40:05.000000000 -0400
@@ -362,7 +362,7 @@ mode_fixup(struct drm_atomic_state *stat
 	struct drm_connector *connector;
 	struct drm_connector_state *conn_state;
 	int i;
-	bool ret;
+	int ret;
 
 	for_each_crtc_in_state(state, crtc, crtc_state, i) {
 		if (!crtc_state->mode_changed &&
@@ -1253,8 +1253,10 @@ int drm_atomic_helper_commit(struct drm_
 
 	if (!nonblock) {
 		ret = drm_atomic_helper_wait_for_fences(dev, state, true);
-		if (ret)
+		if (ret) {
+			drm_atomic_helper_cleanup_planes(dev, state);
 			return ret;
+		}
 	}
 
 	/*
@@ -1380,6 +1382,15 @@ static int stall_checks(struct drm_crtc
 	return ret < 0 ? ret : 0;
 }
 
+void release_crtc_commit(struct completion *completion)
+{
+	struct drm_crtc_commit *commit = container_of(completion,
+						      typeof(*commit),
+						      flip_done);
+
+	drm_crtc_commit_put(commit);
+}
+
 /**
  * drm_atomic_helper_setup_commit - setup possibly nonblocking commit
  * @state: new modeset state to be committed
@@ -1472,6 +1483,8 @@ int drm_atomic_helper_setup_commit(struc
 		}
 
 		crtc_state->event->base.completion = &commit->flip_done;
+		crtc_state->event->base.completion_release = release_crtc_commit;
+		drm_crtc_commit_get(commit);
 	}
 
 	return 0;
@@ -3113,6 +3126,8 @@ void __drm_atomic_helper_plane_duplicate
 
 	if (state->fb)
 		drm_framebuffer_reference(state->fb);
+
+	state->fence = NULL;
 }
 EXPORT_SYMBOL(__drm_atomic_helper_plane_duplicate_state);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_connector.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_connector.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_connector.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_connector.c	2017-09-27 08:40:05.000000000 -0400
@@ -225,6 +225,7 @@ int drm_connector_init(struct drm_device
 
 	INIT_LIST_HEAD(&connector->probed_modes);
 	INIT_LIST_HEAD(&connector->modes);
+	mutex_init(&connector->mutex);
 	connector->edid_blob_ptr = NULL;
 	connector->status = connector_status_unknown;
 
@@ -359,6 +360,8 @@ void drm_connector_cleanup(struct drm_co
 		connector->funcs->atomic_destroy_state(connector,
 						       connector->state);
 
+	mutex_destroy(&connector->mutex);
+
 	memset(connector, 0, sizeof(*connector));
 }
 EXPORT_SYMBOL(drm_connector_cleanup);
@@ -374,14 +377,18 @@ EXPORT_SYMBOL(drm_connector_cleanup);
  */
 int drm_connector_register(struct drm_connector *connector)
 {
-	int ret;
+	int ret = 0;
 
-	if (connector->registered)
+	if (!connector->dev->registered)
 		return 0;
 
+	mutex_lock(&connector->mutex);
+	if (connector->registered)
+		goto unlock;
+
 	ret = drm_sysfs_connector_add(connector);
 	if (ret)
-		return ret;
+		goto unlock;
 
 	ret = drm_debugfs_connector_add(connector);
 	if (ret) {
@@ -397,12 +404,14 @@ int drm_connector_register(struct drm_co
 	drm_mode_object_register(connector->dev, &connector->base);
 
 	connector->registered = true;
-	return 0;
+	goto unlock;
 
 err_debugfs:
 	drm_debugfs_connector_remove(connector);
 err_sysfs:
 	drm_sysfs_connector_remove(connector);
+unlock:
+	mutex_unlock(&connector->mutex);
 	return ret;
 }
 EXPORT_SYMBOL(drm_connector_register);
@@ -415,8 +424,11 @@ EXPORT_SYMBOL(drm_connector_register);
  */
 void drm_connector_unregister(struct drm_connector *connector)
 {
-	if (!connector->registered)
+	mutex_lock(&connector->mutex);
+	if (!connector->registered) {
+		mutex_unlock(&connector->mutex);
 		return;
+	}
 
 	if (connector->funcs->early_unregister)
 		connector->funcs->early_unregister(connector);
@@ -425,6 +437,7 @@ void drm_connector_unregister(struct drm
 	drm_debugfs_connector_remove(connector);
 
 	connector->registered = false;
+	mutex_unlock(&connector->mutex);
 }
 EXPORT_SYMBOL(drm_connector_unregister);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_dp_mst_topology.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_dp_mst_topology.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_dp_mst_topology.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_dp_mst_topology.c	2017-09-27 08:40:05.000000000 -0400
@@ -330,6 +330,13 @@ static bool drm_dp_sideband_msg_build(st
 			return false;
 		}
 
+		/*
+		 * ignore out-of-order messages or messages that are part of a
+		 * failed transaction
+		 */
+		if (!recv_hdr.somt && !msg->have_somt)
+			return false;
+
 		/* get length contained in this portion */
 		msg->curchunk_len = recv_hdr.msg_len;
 		msg->curchunk_hdrlen = hdrlen;
@@ -1817,7 +1824,7 @@ int drm_dp_update_payload_part1(struct d
 				mgr->payloads[i].vcpi = req_payload.vcpi;
 			} else if (mgr->payloads[i].num_slots) {
 				mgr->payloads[i].num_slots = 0;
-				drm_dp_destroy_payload_step1(mgr, port, port->vcpi.vcpi, &mgr->payloads[i]);
+				drm_dp_destroy_payload_step1(mgr, port, mgr->payloads[i].vcpi, &mgr->payloads[i]);
 				req_payload.payload_state = mgr->payloads[i].payload_state;
 				mgr->payloads[i].start_slot = 0;
 			}
@@ -2168,7 +2175,7 @@ out_unlock:
 }
 EXPORT_SYMBOL(drm_dp_mst_topology_mgr_resume);
 
-static void drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
+static bool drm_dp_get_one_sb_msg(struct drm_dp_mst_topology_mgr *mgr, bool up)
 {
 	int len;
 	u8 replyblock[32];
@@ -2183,12 +2190,12 @@ static void drm_dp_get_one_sb_msg(struct
 			       replyblock, len);
 	if (ret != len) {
 		DRM_DEBUG_KMS("failed to read DPCD down rep %d %d\n", len, ret);
-		return;
+		return false;
 	}
 	ret = drm_dp_sideband_msg_build(msg, replyblock, len, true);
 	if (!ret) {
 		DRM_DEBUG_KMS("sideband msg build failed %d\n", replyblock[0]);
-		return;
+		return false;
 	}
 	replylen = msg->curchunk_len + msg->curchunk_hdrlen;
 
@@ -2200,21 +2207,32 @@ static void drm_dp_get_one_sb_msg(struct
 		ret = drm_dp_dpcd_read(mgr->aux, basereg + curreply,
 				    replyblock, len);
 		if (ret != len) {
-			DRM_DEBUG_KMS("failed to read a chunk\n");
+			DRM_DEBUG_KMS("failed to read a chunk (len %d, ret %d)\n",
+				      len, ret);
+			return false;
 		}
+
 		ret = drm_dp_sideband_msg_build(msg, replyblock, len, false);
-		if (ret == false)
+		if (!ret) {
 			DRM_DEBUG_KMS("failed to build sideband msg\n");
+			return false;
+		}
+
 		curreply += len;
 		replylen -= len;
 	}
+	return true;
 }
 
 static int drm_dp_mst_handle_down_rep(struct drm_dp_mst_topology_mgr *mgr)
 {
 	int ret = 0;
 
-	drm_dp_get_one_sb_msg(mgr, false);
+	if (!drm_dp_get_one_sb_msg(mgr, false)) {
+		memset(&mgr->down_rep_recv, 0,
+		       sizeof(struct drm_dp_sideband_msg_rx));
+		return 0;
+	}
 
 	if (mgr->down_rep_recv.have_eomt) {
 		struct drm_dp_sideband_msg_tx *txmsg;
@@ -2270,7 +2288,12 @@ static int drm_dp_mst_handle_down_rep(st
 static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
 {
 	int ret = 0;
-	drm_dp_get_one_sb_msg(mgr, true);
+
+	if (!drm_dp_get_one_sb_msg(mgr, true)) {
+		memset(&mgr->up_req_recv, 0,
+		       sizeof(struct drm_dp_sideband_msg_rx));
+		return 0;
+	}
 
 	if (mgr->up_req_recv.have_eomt) {
 		struct drm_dp_sideband_msg_req_body msg;
@@ -2322,7 +2345,9 @@ static int drm_dp_mst_handle_up_req(stru
 			DRM_DEBUG_KMS("Got RSN: pn: %d avail_pbn %d\n", msg.u.resource_stat.port_number, msg.u.resource_stat.available_pbn);
 		}
 
-		drm_dp_put_mst_branch_device(mstb);
+		if (mstb)
+			drm_dp_put_mst_branch_device(mstb);
+
 		memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideband_msg_rx));
 	}
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -379,7 +379,12 @@ EXPORT_SYMBOL(drm_put_dev);
 void drm_unplug_dev(struct drm_device *dev)
 {
 	/* for a USB device */
-	drm_dev_unregister(dev);
+	if (drm_core_check_feature(dev, DRIVER_MODESET))
+		drm_modeset_unregister_all(dev);
+
+	drm_minor_unregister(dev, DRM_MINOR_PRIMARY);
+	drm_minor_unregister(dev, DRM_MINOR_RENDER);
+	drm_minor_unregister(dev, DRM_MINOR_CONTROL);
 
 	mutex_lock(&drm_global_mutex);
 
@@ -705,6 +710,8 @@ int drm_dev_register(struct drm_device *
 	if (ret)
 		goto err_minors;
 
+	dev->registered = true;
+
 	if (dev->driver->load) {
 		ret = dev->driver->load(dev, flags);
 		if (ret)
@@ -744,6 +751,8 @@ void drm_dev_unregister(struct drm_devic
 
 	drm_lastclose(dev);
 
+	dev->registered = false;
+
 	if (drm_core_check_feature(dev, DRIVER_MODESET))
 		drm_modeset_unregister_all(dev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_edid.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_edid.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_edid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_edid.c	2017-09-27 08:40:05.000000000 -0400
@@ -76,6 +76,8 @@
 #define EDID_QUIRK_FORCE_12BPC			(1 << 9)
 /* Force 6bpc */
 #define EDID_QUIRK_FORCE_6BPC			(1 << 10)
+/* Force 10bpc */
+#define EDID_QUIRK_FORCE_10BPC			(1 << 11)
 
 struct detailed_mode_closure {
 	struct drm_connector *connector;
@@ -90,7 +92,7 @@ struct detailed_mode_closure {
 #define LEVEL_GTF2	2
 #define LEVEL_CVT	3
 
-static struct edid_quirk {
+static const struct edid_quirk {
 	char vendor[4];
 	int product_id;
 	u32 quirks;
@@ -118,6 +120,9 @@ static struct edid_quirk {
 	{ "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
 	  EDID_QUIRK_DETAILED_IN_CM },
 
+	/* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */
+	{ "LGD", 764, EDID_QUIRK_FORCE_10BPC },
+
 	/* LG Philips LCD LP154W01-A5 */
 	{ "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
 	{ "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
@@ -145,6 +150,9 @@ static struct edid_quirk {
 
 	/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
 	{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
+
+	/* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
+	{ "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
 };
 
 /*
@@ -1446,7 +1454,7 @@ EXPORT_SYMBOL(drm_edid_duplicate);
  *
  * Returns true if @vendor is in @edid, false otherwise
  */
-static bool edid_vendor(struct edid *edid, char *vendor)
+static bool edid_vendor(struct edid *edid, const char *vendor)
 {
 	char edid_vendor[3];
 
@@ -1466,7 +1474,7 @@ static bool edid_vendor(struct edid *edi
  */
 static u32 edid_get_quirks(struct edid *edid)
 {
-	struct edid_quirk *quirk;
+	const struct edid_quirk *quirk;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
@@ -4102,6 +4110,9 @@ int drm_add_edid_modes(struct drm_connec
 	if (quirks & EDID_QUIRK_FORCE_8BPC)
 		connector->display_info.bpc = 8;
 
+	if (quirks & EDID_QUIRK_FORCE_10BPC)
+		connector->display_info.bpc = 10;
+
 	if (quirks & EDID_QUIRK_FORCE_12BPC)
 		connector->display_info.bpc = 12;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_fb_helper.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_fb_helper.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_fb_helper.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_fb_helper.c	2017-09-27 08:40:05.000000000 -0400
@@ -848,6 +848,9 @@ void drm_fb_helper_fini(struct drm_fb_he
 	if (!drm_fbdev_emulation)
 		return;
 
+	cancel_work_sync(&fb_helper->resume_work);
+	cancel_work_sync(&fb_helper->dirty_work);
+
 	if (!list_empty(&fb_helper->kernel_fb_list)) {
 		list_del(&fb_helper->kernel_fb_list);
 		if (list_empty(&kernel_fb_helper_list)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_fops.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_fops.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_fops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_fops.c	2017-09-27 08:40:05.000000000 -0400
@@ -686,8 +686,8 @@ void drm_send_event_locked(struct drm_de
 	assert_spin_locked(&dev->event_lock);
 
 	if (e->completion) {
-		/* ->completion might disappear as soon as it signalled. */
 		complete_all(e->completion);
+		e->completion_release(e->completion);
 		e->completion = NULL;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_gem.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_gem.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_gem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_gem.c	2017-09-27 08:40:05.000000000 -0400
@@ -255,13 +255,13 @@ drm_gem_object_release_handle(int id, vo
 	struct drm_gem_object *obj = ptr;
 	struct drm_device *dev = obj->dev;
 
+	if (dev->driver->gem_close_object)
+		dev->driver->gem_close_object(obj, file_priv);
+
 	if (drm_core_check_feature(dev, DRIVER_PRIME))
 		drm_gem_remove_prime_handles(obj, file_priv);
 	drm_vma_node_revoke(&obj->vma_node, file_priv);
 
-	if (dev->driver->gem_close_object)
-		dev->driver->gem_close_object(obj, file_priv);
-
 	drm_gem_object_handle_unreference_unlocked(obj);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_irq.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_irq.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_irq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_irq.c	2017-09-27 08:40:05.000000000 -0400
@@ -952,8 +952,10 @@ static u32 drm_vblank_count_and_time(str
 	u32 vblank_count;
 	unsigned int seq;
 
-	if (WARN_ON(pipe >= dev->num_crtcs))
+	if (WARN_ON(pipe >= dev->num_crtcs)) {
+		*vblanktime = (struct timeval) { 0 };
 		return 0;
+	}
 
 	do {
 		seq = read_seqbegin(&vblank->seqlock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_mm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_mm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_mm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_mm.c	2017-09-27 08:40:05.000000000 -0400
@@ -839,6 +839,7 @@ void drm_mm_init(struct drm_mm * mm, u64
 
 	/* Clever trick to avoid a special case in the free hole tracking. */
 	INIT_LIST_HEAD(&mm->head_node.node_list);
+	mm->head_node.allocated = 0;
 	mm->head_node.hole_follows = 1;
 	mm->head_node.scanned_block = 0;
 	mm->head_node.scanned_prev_free = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_modes.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_modes.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_modes.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_modes.c	2017-09-27 08:40:05.000000000 -0400
@@ -1462,6 +1462,13 @@ drm_mode_create_from_cmdline_mode(struct
 		return NULL;
 
 	mode->type |= DRM_MODE_TYPE_USERDEF;
+	/* fix up 1368x768: GFT/CVT can't express 1366 width due to alignment */
+	if (cmd->xres == 1366 && mode->hdisplay == 1368) {
+		mode->hdisplay = 1366;
+		mode->hsync_start--;
+		mode->hsync_end--;
+		drm_mode_set_name(mode);
+	}
 	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 	return mode;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/drm_probe_helper.c linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_probe_helper.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/drm_probe_helper.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/drm_probe_helper.c	2017-09-27 08:40:05.000000000 -0400
@@ -143,8 +143,18 @@ void drm_kms_helper_poll_enable_locked(s
 	}
 
 	if (dev->mode_config.delayed_event) {
+		/*
+		 * FIXME:
+		 *
+		 * Use short (1s) delay to handle the initial delayed event.
+		 * This delay should not be needed, but Optimus/nouveau will
+		 * fail in a mysterious way if the delayed event is handled as
+		 * soon as possible like it is done in
+		 * drm_helper_probe_single_connector_modes() in case the poll
+		 * was enabled before.
+		 */
 		poll = true;
-		delay = 0;
+		delay = HZ;
 	}
 
 	if (poll)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c linux-libre-4.9.52-gnu/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c	2017-09-27 08:40:05.000000000 -0400
@@ -264,8 +264,8 @@ static int submit_reloc(struct etnaviv_g
 		if (ret)
 			return ret;
 
-		if (r->reloc_offset >= bo->obj->base.size - sizeof(*ptr)) {
-			DRM_ERROR("relocation %u outside object", i);
+		if (r->reloc_offset > bo->obj->base.size - sizeof(*ptr)) {
+			DRM_ERROR("relocation %u outside object\n", i);
 			return -EINVAL;
 		}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c linux-libre-4.9.52-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/etnaviv/etnaviv_gpu.c	2017-09-27 08:40:05.000000000 -0400
@@ -1299,15 +1299,15 @@ int etnaviv_gpu_submit(struct etnaviv_gp
 		goto out_pm_put;
 	}
 
+	mutex_lock(&gpu->lock);
+
 	fence = etnaviv_gpu_fence_alloc(gpu);
 	if (!fence) {
 		event_free(gpu, event);
 		ret = -ENOMEM;
-		goto out_pm_put;
+		goto out_unlock;
 	}
 
-	mutex_lock(&gpu->lock);
-
 	gpu->event[event].fence = fence;
 	submit->fence = fence->seqno;
 	gpu->active_fence = submit->fence;
@@ -1345,6 +1345,7 @@ int etnaviv_gpu_submit(struct etnaviv_gp
 	hangcheck_timer_reset(gpu);
 	ret = 0;
 
+out_unlock:
 	mutex_unlock(&gpu->lock);
 
 out_pm_put:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/etnaviv/etnaviv_mmu.c linux-libre-4.9.52-gnu/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/etnaviv/etnaviv_mmu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/etnaviv/etnaviv_mmu.c	2017-09-27 08:40:05.000000000 -0400
@@ -116,9 +116,14 @@ static int etnaviv_iommu_find_iova(struc
 		struct list_head list;
 		bool found;
 
+		/*
+		 * XXX: The DRM_MM_SEARCH_BELOW is really a hack to trick
+		 * drm_mm into giving out a low IOVA after address space
+		 * rollover. This needs a proper fix.
+		 */
 		ret = drm_mm_insert_node_in_range(&mmu->mm, node,
 			size, 0, mmu->last_iova, ~0UL,
-			DRM_MM_SEARCH_DEFAULT);
+			mmu->last_iova ? DRM_MM_SEARCH_DEFAULT : DRM_MM_SEARCH_BELOW);
 
 		if (ret != -ENOSPC)
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/gma500/psb_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/gma500/psb_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/gma500/psb_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/gma500/psb_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -473,6 +473,9 @@ static const struct file_operations psb_
 	.open = drm_open,
 	.release = drm_release,
 	.unlocked_ioctl = psb_unlocked_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = drm_compat_ioctl,
+#endif
 	.mmap = drm_gem_mmap,
 	.poll = drm_poll,
 	.read = drm_read,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c linux-libre-4.9.52-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/gma500/psb_intel_lvds.c	2017-09-27 08:40:05.000000000 -0400
@@ -774,20 +774,23 @@ void psb_intel_lvds_init(struct drm_devi
 		if (scan->type & DRM_MODE_TYPE_PREFERRED) {
 			mode_dev->panel_fixed_mode =
 			    drm_mode_duplicate(dev, scan);
+			DRM_DEBUG_KMS("Using mode from DDC\n");
 			goto out;	/* FIXME: check for quirks */
 		}
 	}
 
 	/* Failed to get EDID, what about VBT? do we need this? */
-	if (mode_dev->vbt_mode)
+	if (dev_priv->lfp_lvds_vbt_mode) {
 		mode_dev->panel_fixed_mode =
-		    drm_mode_duplicate(dev, mode_dev->vbt_mode);
+			drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
 
-	if (!mode_dev->panel_fixed_mode)
-		if (dev_priv->lfp_lvds_vbt_mode)
-			mode_dev->panel_fixed_mode =
-				drm_mode_duplicate(dev,
-					dev_priv->lfp_lvds_vbt_mode);
+		if (mode_dev->panel_fixed_mode) {
+			mode_dev->panel_fixed_mode->type |=
+				DRM_MODE_TYPE_PREFERRED;
+			DRM_DEBUG_KMS("Using mode from VBT\n");
+			goto out;
+		}
+	}
 
 	/*
 	 * If we didn't get EDID, try checking if the panel is already turned
@@ -804,6 +807,7 @@ void psb_intel_lvds_init(struct drm_devi
 		if (mode_dev->panel_fixed_mode) {
 			mode_dev->panel_fixed_mode->type |=
 			    DRM_MODE_TYPE_PREFERRED;
+			DRM_DEBUG_KMS("Using pre-programmed mode\n");
 			goto out;	/* FIXME: check for quirks */
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -240,6 +240,7 @@ static int i915_getparam(struct drm_devi
 	case I915_PARAM_IRQ_ACTIVE:
 	case I915_PARAM_ALLOW_BATCHBUFFER:
 	case I915_PARAM_LAST_DISPATCH:
+	case I915_PARAM_HAS_EXEC_CONSTANTS:
 		/* Reject all old ums/dri params. */
 		return -ENODEV;
 	case I915_PARAM_CHIPSET_ID:
@@ -266,9 +267,6 @@ static int i915_getparam(struct drm_devi
 	case I915_PARAM_HAS_BSD2:
 		value = intel_engine_initialized(&dev_priv->engine[VCS2]);
 		break;
-	case I915_PARAM_HAS_EXEC_CONSTANTS:
-		value = INTEL_GEN(dev_priv) >= 4;
-		break;
 	case I915_PARAM_HAS_LLC:
 		value = HAS_LLC(dev_priv);
 		break;
@@ -575,9 +573,7 @@ static int i915_load_modeset_init(struct
 	if (i915_inject_load_failure())
 		return -ENODEV;
 
-	ret = intel_bios_init(dev_priv);
-	if (ret)
-		DRM_INFO("failed to find VBIOS tables\n");
+	intel_bios_init(dev_priv);
 
 	/* If we have > 1 VGA cards, then we need to arbitrate access
 	 * to the common VGA resources.
@@ -1203,6 +1199,15 @@ int i915_driver_load(struct pci_dev *pde
 		goto out_free_priv;
 
 	pci_set_drvdata(pdev, &dev_priv->drm);
+	/*
+	 * Disable the system suspend direct complete optimization, which can
+	 * leave the device suspended skipping the driver's suspend handlers
+	 * if the device was already runtime suspended. This is needed due to
+	 * the difference in our runtime and system suspend sequence and
+	 * becaue the HDA driver may require us to enable the audio power
+	 * domain during system suspend.
+	 */
+	pdev->dev_flags |= PCI_DEV_FLAGS_NEEDS_RESUME;
 
 	ret = i915_driver_init_early(dev_priv, ent);
 	if (ret < 0)
@@ -2372,7 +2377,7 @@ static int intel_runtime_suspend(struct
 
 	assert_forcewakes_inactive(dev_priv);
 
-	if (!IS_VALLEYVIEW(dev_priv) || !IS_CHERRYVIEW(dev_priv))
+	if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv))
 		intel_hpd_poll_init(dev_priv);
 
 	DRM_DEBUG_KMS("Device suspended\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_drv.h linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_drv.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_drv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_drv.h	2017-09-27 08:40:05.000000000 -0400
@@ -1225,7 +1225,7 @@ struct intel_gen6_power_mgmt {
 	unsigned boosts;
 
 	/* manual wa residency calculations */
-	struct intel_rps_ei up_ei, down_ei;
+	struct intel_rps_ei ei;
 
 	/*
 	 * Protects RPS/RC6 register access and PCU communication.
@@ -1751,8 +1751,6 @@ struct drm_i915_private {
 
 	const struct intel_device_info info;
 
-	int relative_constants_mode;
-
 	void __iomem *regs;
 
 	struct intel_uncore uncore;
@@ -3586,7 +3584,7 @@ static inline bool intel_gmbus_is_forced
 extern void intel_i2c_reset(struct drm_device *dev);
 
 /* intel_bios.c */
-int intel_bios_init(struct drm_i915_private *dev_priv);
+void intel_bios_init(struct drm_i915_private *dev_priv);
 bool intel_bios_is_valid_vbt(const void *buf, size_t size);
 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv);
 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin);
@@ -3684,6 +3682,8 @@ extern void intel_display_print_error_st
 
 int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u32 mbox, u32 *val);
 int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u32 mbox, u32 val);
+int skl_pcode_request(struct drm_i915_private *dev_priv, u32 mbox, u32 request,
+		      u32 reply_mask, u32 reply, int timeout_base_ms);
 
 /* intel_sideband.c */
 u32 vlv_punit_read(struct drm_i915_private *dev_priv, u32 addr);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem.c	2017-09-27 08:40:05.000000000 -0400
@@ -4587,8 +4587,6 @@ i915_gem_load_init(struct drm_device *de
 	init_waitqueue_head(&dev_priv->gpu_error.wait_queue);
 	init_waitqueue_head(&dev_priv->gpu_error.reset_queue);
 
-	dev_priv->relative_constants_mode = I915_EXEC_CONSTANTS_REL_GENERAL;
-
 	init_waitqueue_head(&dev_priv->pending_flip_queue);
 
 	dev_priv->mm.interruptible = true;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_evict.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_evict.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_evict.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_evict.c	2017-09-27 08:40:05.000000000 -0400
@@ -194,6 +194,7 @@ found:
 	}
 
 	/* Unbinding will emit any required flushes */
+	ret = 0;
 	while (!list_empty(&eviction_list)) {
 		vma = list_first_entry(&eviction_list,
 				       struct i915_vma,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_execbuffer.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_execbuffer.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_execbuffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_execbuffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -1215,14 +1215,14 @@ validate_exec_list(struct drm_device *de
 			if (exec[i].offset !=
 			    gen8_canonical_addr(exec[i].offset & PAGE_MASK))
 				return -EINVAL;
-
-			/* From drm_mm perspective address space is continuous,
-			 * so from this point we're always using non-canonical
-			 * form internally.
-			 */
-			exec[i].offset = gen8_noncanonical_addr(exec[i].offset);
 		}
 
+		/* From drm_mm perspective address space is continuous,
+		 * so from this point we're always using non-canonical
+		 * form internally.
+		 */
+		exec[i].offset = gen8_noncanonical_addr(exec[i].offset);
+
 		if (exec[i].alignment && !is_power_of_2(exec[i].alignment))
 			return -EINVAL;
 
@@ -1454,10 +1454,7 @@ execbuf_submit(struct i915_execbuffer_pa
 	       struct drm_i915_gem_execbuffer2 *args,
 	       struct list_head *vmas)
 {
-	struct drm_i915_private *dev_priv = params->request->i915;
 	u64 exec_start, exec_len;
-	int instp_mode;
-	u32 instp_mask;
 	int ret;
 
 	ret = i915_gem_execbuffer_move_to_gpu(params->request, vmas);
@@ -1468,56 +1465,11 @@ execbuf_submit(struct i915_execbuffer_pa
 	if (ret)
 		return ret;
 
-	instp_mode = args->flags & I915_EXEC_CONSTANTS_MASK;
-	instp_mask = I915_EXEC_CONSTANTS_MASK;
-	switch (instp_mode) {
-	case I915_EXEC_CONSTANTS_REL_GENERAL:
-	case I915_EXEC_CONSTANTS_ABSOLUTE:
-	case I915_EXEC_CONSTANTS_REL_SURFACE:
-		if (instp_mode != 0 && params->engine->id != RCS) {
-			DRM_DEBUG("non-0 rel constants mode on non-RCS\n");
-			return -EINVAL;
-		}
-
-		if (instp_mode != dev_priv->relative_constants_mode) {
-			if (INTEL_INFO(dev_priv)->gen < 4) {
-				DRM_DEBUG("no rel constants on pre-gen4\n");
-				return -EINVAL;
-			}
-
-			if (INTEL_INFO(dev_priv)->gen > 5 &&
-			    instp_mode == I915_EXEC_CONSTANTS_REL_SURFACE) {
-				DRM_DEBUG("rel surface constants mode invalid on gen5+\n");
-				return -EINVAL;
-			}
-
-			/* The HW changed the meaning on this bit on gen6 */
-			if (INTEL_INFO(dev_priv)->gen >= 6)
-				instp_mask &= ~I915_EXEC_CONSTANTS_REL_SURFACE;
-		}
-		break;
-	default:
-		DRM_DEBUG("execbuf with unknown constants: %d\n", instp_mode);
+	if (args->flags & I915_EXEC_CONSTANTS_MASK) {
+		DRM_DEBUG("I915_EXEC_CONSTANTS_* unsupported\n");
 		return -EINVAL;
 	}
 
-	if (params->engine->id == RCS &&
-	    instp_mode != dev_priv->relative_constants_mode) {
-		struct intel_ring *ring = params->request->ring;
-
-		ret = intel_ring_begin(params->request, 4);
-		if (ret)
-			return ret;
-
-		intel_ring_emit(ring, MI_NOOP);
-		intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
-		intel_ring_emit_reg(ring, INSTPM);
-		intel_ring_emit(ring, instp_mask << 16 | instp_mode);
-		intel_ring_advance(ring);
-
-		dev_priv->relative_constants_mode = instp_mode;
-	}
-
 	if (args->flags & I915_EXEC_GEN7_SOL_RESET) {
 		ret = i915_reset_gen7_sol_offsets(params->request);
 		if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_request.h linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_request.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_request.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_request.h	2017-09-27 08:40:05.000000000 -0400
@@ -344,6 +344,25 @@ i915_gem_active_set(struct i915_gem_acti
 	rcu_assign_pointer(active->request, request);
 }
 
+/**
+ * i915_gem_active_set_retire_fn - updates the retirement callback
+ * @active - the active tracker
+ * @fn - the routine called when the request is retired
+ * @mutex - struct_mutex used to guard retirements
+ *
+ * i915_gem_active_set_retire_fn() updates the function pointer that
+ * is called when the final request associated with the @active tracker
+ * is retired.
+ */
+static inline void
+i915_gem_active_set_retire_fn(struct i915_gem_active *active,
+			      i915_gem_retire_fn fn,
+			      struct mutex *mutex)
+{
+	lockdep_assert_held(mutex);
+	active->retire = fn ?: i915_gem_retire_noop;
+}
+
 static inline struct drm_i915_gem_request *
 __i915_gem_active_peek(const struct i915_gem_active *active)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_shrinker.c	2017-09-27 08:40:05.000000000 -0400
@@ -233,7 +233,7 @@ unsigned long i915_gem_shrink_all(struct
 				I915_SHRINK_BOUND |
 				I915_SHRINK_UNBOUND |
 				I915_SHRINK_ACTIVE);
-	rcu_barrier(); /* wait until our RCU delayed slab frees are completed */
+	synchronize_rcu(); /* wait for our earlier RCU delayed slab frees */
 
 	return freed;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_gem_stolen.c	2017-09-27 08:40:05.000000000 -0400
@@ -55,10 +55,9 @@ int i915_gem_stolen_insert_node_in_range
 		return -ENODEV;
 
 	/* See the comment at the drm_mm_init() call for more about this check.
-	 * WaSkipStolenMemoryFirstPage:bdw,chv,kbl (incomplete)
+	 * WaSkipStolenMemoryFirstPage:bdw+ (incomplete)
 	 */
-	if (start < 4096 && (IS_GEN8(dev_priv) ||
-			     IS_KBL_REVID(dev_priv, 0, KBL_REVID_A0)))
+	if (start < 4096 && INTEL_GEN(dev_priv) >= 8)
 		start = 4096;
 
 	mutex_lock(&dev_priv->mm.stolen_lock);
@@ -416,6 +415,16 @@ int i915_gem_init_stolen(struct drm_devi
 
 	mutex_init(&dev_priv->mm.stolen_lock);
 
+	if (intel_vgpu_active(dev_priv)) {
+		DRM_INFO("iGVT-g active, disabling use of stolen memory\n");
+		return 0;
+	}
+
+	if (intel_vgpu_active(dev_priv)) {
+		DRM_INFO("iGVT-g active, disabling use of stolen memory\n");
+		return 0;
+	}
+
 #ifdef CONFIG_INTEL_IOMMU
 	if (intel_iommu_gfx_mapped && INTEL_INFO(dev)->gen < 8) {
 		DRM_INFO("DMAR active, disabling use of stolen memory\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_irq.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_irq.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_irq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_irq.c	2017-09-27 08:40:05.000000000 -0400
@@ -990,68 +990,51 @@ static void vlv_c0_read(struct drm_i915_
 	ei->media_c0 = I915_READ(VLV_MEDIA_C0_COUNT);
 }
 
-static bool vlv_c0_above(struct drm_i915_private *dev_priv,
-			 const struct intel_rps_ei *old,
-			 const struct intel_rps_ei *now,
-			 int threshold)
-{
-	u64 time, c0;
-	unsigned int mul = 100;
-
-	if (old->cz_clock == 0)
-		return false;
-
-	if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH)
-		mul <<= 8;
-
-	time = now->cz_clock - old->cz_clock;
-	time *= threshold * dev_priv->czclk_freq;
-
-	/* Workload can be split between render + media, e.g. SwapBuffers
-	 * being blitted in X after being rendered in mesa. To account for
-	 * this we need to combine both engines into our activity counter.
-	 */
-	c0 = now->render_c0 - old->render_c0;
-	c0 += now->media_c0 - old->media_c0;
-	c0 *= mul * VLV_CZ_CLOCK_TO_MILLI_SEC;
-
-	return c0 >= time;
-}
-
 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv)
 {
-	vlv_c0_read(dev_priv, &dev_priv->rps.down_ei);
-	dev_priv->rps.up_ei = dev_priv->rps.down_ei;
+	memset(&dev_priv->rps.ei, 0, sizeof(dev_priv->rps.ei));
 }
 
 static u32 vlv_wa_c0_ei(struct drm_i915_private *dev_priv, u32 pm_iir)
 {
+	const struct intel_rps_ei *prev = &dev_priv->rps.ei;
 	struct intel_rps_ei now;
 	u32 events = 0;
 
-	if ((pm_iir & (GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED)) == 0)
+	if ((pm_iir & GEN6_PM_RP_UP_EI_EXPIRED) == 0)
 		return 0;
 
 	vlv_c0_read(dev_priv, &now);
 	if (now.cz_clock == 0)
 		return 0;
 
-	if (pm_iir & GEN6_PM_RP_DOWN_EI_EXPIRED) {
-		if (!vlv_c0_above(dev_priv,
-				  &dev_priv->rps.down_ei, &now,
-				  dev_priv->rps.down_threshold))
-			events |= GEN6_PM_RP_DOWN_THRESHOLD;
-		dev_priv->rps.down_ei = now;
-	}
+	if (prev->cz_clock) {
+		u64 time, c0;
+		unsigned int mul;
 
-	if (pm_iir & GEN6_PM_RP_UP_EI_EXPIRED) {
-		if (vlv_c0_above(dev_priv,
-				 &dev_priv->rps.up_ei, &now,
-				 dev_priv->rps.up_threshold))
-			events |= GEN6_PM_RP_UP_THRESHOLD;
-		dev_priv->rps.up_ei = now;
+		mul = VLV_CZ_CLOCK_TO_MILLI_SEC * 100; /* scale to threshold% */
+		if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH)
+			mul <<= 8;
+
+		time = now.cz_clock - prev->cz_clock;
+		time *= dev_priv->czclk_freq;
+
+		/* Workload can be split between render + media,
+		 * e.g. SwapBuffers being blitted in X after being rendered in
+		 * mesa. To account for this we need to combine both engines
+		 * into our activity counter.
+		 */
+		c0 = now.render_c0 - prev->render_c0;
+		c0 += now.media_c0 - prev->media_c0;
+		c0 *= mul;
+
+		if (c0 > time * dev_priv->rps.up_threshold)
+			events = GEN6_PM_RP_UP_THRESHOLD;
+		else if (c0 < time * dev_priv->rps.down_threshold)
+			events = GEN6_PM_RP_DOWN_THRESHOLD;
 	}
 
+	dev_priv->rps.ei = now;
 	return events;
 }
 
@@ -4490,7 +4473,7 @@ void intel_irq_init(struct drm_i915_priv
 	/* Let's track the enabled rps events */
 	if (IS_VALLEYVIEW(dev_priv))
 		/* WaGsvRC0ResidencyMethod:vlv */
-		dev_priv->pm_rps_events = GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED;
+		dev_priv->pm_rps_events = GEN6_PM_RP_UP_EI_EXPIRED;
 	else
 		dev_priv->pm_rps_events = GEN6_PM_RPS_EVENTS;
 
@@ -4531,6 +4514,16 @@ void intel_irq_init(struct drm_i915_priv
 	if (!IS_GEN2(dev_priv))
 		dev->vblank_disable_immediate = true;
 
+	/* Most platforms treat the display irq block as an always-on
+	 * power domain. vlv/chv can disable it at runtime and need
+	 * special care to avoid writing any of the display block registers
+	 * outside of the power domain. We defer setting up the display irqs
+	 * in this case to the runtime pm.
+	 */
+	dev_priv->display_irqs_enabled = true;
+	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+		dev_priv->display_irqs_enabled = false;
+
 	dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp;
 	dev->driver->get_scanout_position = i915_get_crtc_scanoutpos;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_pci.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_pci.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -417,6 +417,7 @@ static const struct pci_device_id pciidl
 	INTEL_VLV_IDS(&intel_valleyview_info),
 	INTEL_BDW_GT12_IDS(&intel_broadwell_info),
 	INTEL_BDW_GT3_IDS(&intel_broadwell_gt3_info),
+	INTEL_BDW_RSVD_IDS(&intel_broadwell_info),
 	INTEL_CHV_IDS(&intel_cherryview_info),
 	INTEL_SKL_GT1_IDS(&intel_skylake_info),
 	INTEL_SKL_GT2_IDS(&intel_skylake_info),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_pvinfo.h linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_pvinfo.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_pvinfo.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_pvinfo.h	2017-09-27 08:40:05.000000000 -0400
@@ -36,10 +36,6 @@
 #define VGT_VERSION_MAJOR 1
 #define VGT_VERSION_MINOR 0
 
-#define INTEL_VGT_IF_VERSION_ENCODE(major, minor) ((major) << 16 | (minor))
-#define INTEL_VGT_IF_VERSION \
-	INTEL_VGT_IF_VERSION_ENCODE(VGT_VERSION_MAJOR, VGT_VERSION_MINOR)
-
 /*
  * notifications from guest to vgpu device model
  */
@@ -55,8 +51,8 @@ enum vgt_g2v_type {
 
 struct vgt_if {
 	u64 magic;		/* VGT_MAGIC */
-	uint16_t version_major;
-	uint16_t version_minor;
+	u16 version_major;
+	u16 version_minor;
 	u32 vgt_id;		/* ID of vGT instance */
 	u32 rsv1[12];		/* pad to offset 0x40 */
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_sysfs.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_sysfs.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -460,7 +460,7 @@ static ssize_t gt_min_freq_mhz_store(str
 
 static DEVICE_ATTR(gt_act_freq_mhz, S_IRUGO, gt_act_freq_mhz_show, NULL);
 static DEVICE_ATTR(gt_cur_freq_mhz, S_IRUGO, gt_cur_freq_mhz_show, NULL);
-static DEVICE_ATTR(gt_boost_freq_mhz, S_IRUGO, gt_boost_freq_mhz_show, gt_boost_freq_mhz_store);
+static DEVICE_ATTR(gt_boost_freq_mhz, S_IRUGO | S_IWUSR, gt_boost_freq_mhz_show, gt_boost_freq_mhz_store);
 static DEVICE_ATTR(gt_max_freq_mhz, S_IRUGO | S_IWUSR, gt_max_freq_mhz_show, gt_max_freq_mhz_store);
 static DEVICE_ATTR(gt_min_freq_mhz, S_IRUGO | S_IWUSR, gt_min_freq_mhz_show, gt_min_freq_mhz_store);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_vgpu.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_vgpu.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/i915_vgpu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/i915_vgpu.c	2017-09-27 08:40:05.000000000 -0400
@@ -60,8 +60,8 @@
  */
 void i915_check_vgpu(struct drm_i915_private *dev_priv)
 {
-	uint64_t magic;
-	uint32_t version;
+	u64 magic;
+	u16 version_major;
 
 	BUILD_BUG_ON(sizeof(struct vgt_if) != VGT_PVINFO_SIZE);
 
@@ -69,10 +69,8 @@ void i915_check_vgpu(struct drm_i915_pri
 	if (magic != VGT_MAGIC)
 		return;
 
-	version = INTEL_VGT_IF_VERSION_ENCODE(
-		__raw_i915_read16(dev_priv, vgtif_reg(version_major)),
-		__raw_i915_read16(dev_priv, vgtif_reg(version_minor)));
-	if (version != INTEL_VGT_IF_VERSION) {
+	version_major = __raw_i915_read16(dev_priv, vgtif_reg(version_major));
+	if (version_major < VGT_VERSION_MAJOR) {
 		DRM_INFO("VGT interface version mismatch!\n");
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_bios.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_bios.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_bios.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_bios.c	2017-09-27 08:40:05.000000000 -0400
@@ -1332,6 +1332,7 @@ parse_device_mapping(struct drm_i915_pri
 	return;
 }
 
+/* Common defaults which may be overridden by VBT. */
 static void
 init_vbt_defaults(struct drm_i915_private *dev_priv)
 {
@@ -1368,6 +1369,18 @@ init_vbt_defaults(struct drm_i915_privat
 			&dev_priv->vbt.ddi_port_info[port];
 
 		info->hdmi_level_shift = HDMI_LEVEL_SHIFT_UNKNOWN;
+	}
+}
+
+/* Defaults to initialize only if there is no VBT. */
+static void
+init_vbt_missing_defaults(struct drm_i915_private *dev_priv)
+{
+	enum port port;
+
+	for (port = PORT_A; port < I915_MAX_PORTS; port++) {
+		struct ddi_vbt_port_info *info =
+			&dev_priv->vbt.ddi_port_info[port];
 
 		info->supports_dvi = (port != PORT_A && port != PORT_E);
 		info->supports_hdmi = info->supports_dvi;
@@ -1450,36 +1463,35 @@ static const struct vbt_header *find_vbt
  * intel_bios_init - find VBT and initialize settings from the BIOS
  * @dev_priv: i915 device instance
  *
- * Loads the Video BIOS and checks that the VBT exists.  Sets scratch registers
- * to appropriate values.
- *
- * Returns 0 on success, nonzero on failure.
+ * Parse and initialize settings from the Video BIOS Tables (VBT). If the VBT
+ * was not found in ACPI OpRegion, try to find it in PCI ROM first. Also
+ * initialize some defaults if the VBT is not present at all.
  */
-int
-intel_bios_init(struct drm_i915_private *dev_priv)
+void intel_bios_init(struct drm_i915_private *dev_priv)
 {
 	struct pci_dev *pdev = dev_priv->drm.pdev;
 	const struct vbt_header *vbt = dev_priv->opregion.vbt;
 	const struct bdb_header *bdb;
 	u8 __iomem *bios = NULL;
 
-	if (HAS_PCH_NOP(dev_priv))
-		return -ENODEV;
+	if (HAS_PCH_NOP(dev_priv)) {
+		DRM_DEBUG_KMS("Skipping VBT init due to disabled display.\n");
+		return;
+	}
 
 	init_vbt_defaults(dev_priv);
 
+	/* If the OpRegion does not have VBT, look in PCI ROM. */
 	if (!vbt) {
 		size_t size;
 
 		bios = pci_map_rom(pdev, &size);
 		if (!bios)
-			return -1;
+			goto out;
 
 		vbt = find_vbt(bios, size);
-		if (!vbt) {
-			pci_unmap_rom(pdev, bios);
-			return -1;
-		}
+		if (!vbt)
+			goto out;
 
 		DRM_DEBUG_KMS("Found valid VBT in PCI ROM\n");
 	}
@@ -1504,10 +1516,14 @@ intel_bios_init(struct drm_i915_private
 	parse_mipi_sequence(dev_priv, bdb);
 	parse_ddi_ports(dev_priv, bdb);
 
+out:
+	if (!vbt) {
+		DRM_INFO("Failed to find VBIOS tables (VBT)\n");
+		init_vbt_missing_defaults(dev_priv);
+	}
+
 	if (bios)
 		pci_unmap_rom(pdev, bios);
-
-	return 0;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_color.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_color.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_color.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_color.c	2017-09-27 08:40:05.000000000 -0400
@@ -394,6 +394,7 @@ static void broadwell_load_luts(struct d
 		}
 
 		/* Program the max register to clamp values > 1.0. */
+		i = lut_size - 1;
 		I915_WRITE(PREC_PAL_GC_MAX(pipe, 0),
 			   drm_color_lut_extract(lut[i].red, 16));
 		I915_WRITE(PREC_PAL_GC_MAX(pipe, 1),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_crt.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_crt.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_crt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_crt.c	2017-09-27 08:40:05.000000000 -0400
@@ -499,6 +499,7 @@ static bool intel_crt_detect_ddc(struct
 	struct drm_i915_private *dev_priv = to_i915(crt->base.base.dev);
 	struct edid *edid;
 	struct i2c_adapter *i2c;
+	bool ret = false;
 
 	BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG);
 
@@ -515,17 +516,17 @@ static bool intel_crt_detect_ddc(struct
 		 */
 		if (!is_digital) {
 			DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n");
-			return true;
+			ret = true;
+		} else {
+			DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
 		}
-
-		DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
 	} else {
 		DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [no valid EDID found]\n");
 	}
 
 	kfree(edid);
 
-	return false;
+	return ret;
 }
 
 static enum drm_connector_status
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_display.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_display.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_display.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_display.c	2017-09-27 08:40:05.000000000 -0400
@@ -2253,6 +2253,9 @@ void intel_unpin_fb_obj(struct drm_frame
 	intel_fill_fb_ggtt_view(&view, fb, rotation);
 	vma = i915_gem_object_to_ggtt(obj, &view);
 
+	if (WARN_ON_ONCE(!vma))
+		return;
+
 	i915_vma_unpin_fence(vma);
 	i915_gem_object_unpin_from_display_plane(vma);
 }
@@ -2587,8 +2590,9 @@ intel_fill_fb_info(struct drm_i915_priva
 			 * We only keep the x/y offsets, so push all of the
 			 * gtt offset into the x/y offsets.
 			 */
-			_intel_adjust_tile_offset(&x, &y, tile_size,
-						  tile_width, tile_height, pitch_tiles,
+			_intel_adjust_tile_offset(&x, &y,
+						  tile_width, tile_height,
+						  tile_size, pitch_tiles,
 						  gtt_offset_rotated * tile_size, 0);
 
 			gtt_offset_rotated += rot_info->plane[i].width * rot_info->plane[i].height;
@@ -2975,6 +2979,9 @@ int skl_check_plane_surface(struct intel
 	unsigned int rotation = plane_state->base.rotation;
 	int ret;
 
+	if (!plane_state->base.visible)
+		return 0;
+
 	/* Rotate src coordinates to match rotated GTT view */
 	if (intel_rotation_90_or_270(rotation))
 		drm_rect_rotate(&plane_state->base.src,
@@ -3692,10 +3699,6 @@ static void intel_update_pipe_config(str
 	/* drm_atomic_helper_update_legacy_modeset_state might not be called. */
 	crtc->base.mode = crtc->base.state->mode;
 
-	DRM_DEBUG_KMS("Updating pipe size %ix%i -> %ix%i\n",
-		      old_crtc_state->pipe_src_w, old_crtc_state->pipe_src_h,
-		      pipe_config->pipe_src_w, pipe_config->pipe_src_h);
-
 	/*
 	 * Update pipe size and adjust fitter if needed: the reason for this is
 	 * that in compute_mode_changes we check the native mode (not the pfit
@@ -4276,10 +4279,10 @@ static void page_flip_completed(struct i
 	drm_crtc_vblank_put(&intel_crtc->base);
 
 	wake_up_all(&dev_priv->pending_flip_queue);
-	queue_work(dev_priv->wq, &work->unpin_work);
-
 	trace_i915_flip_complete(intel_crtc->plane,
 				 work->pending_flip_obj);
+
+	queue_work(dev_priv->wq, &work->unpin_work);
 }
 
 static int intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
@@ -4828,23 +4831,17 @@ static void skylake_pfit_enable(struct i
 	struct intel_crtc_scaler_state *scaler_state =
 		&crtc->config->scaler_state;
 
-	DRM_DEBUG_KMS("for crtc_state = %p\n", crtc->config);
-
 	if (crtc->config->pch_pfit.enabled) {
 		int id;
 
-		if (WARN_ON(crtc->config->scaler_state.scaler_id < 0)) {
-			DRM_ERROR("Requesting pfit without getting a scaler first\n");
+		if (WARN_ON(crtc->config->scaler_state.scaler_id < 0))
 			return;
-		}
 
 		id = scaler_state->scaler_id;
 		I915_WRITE(SKL_PS_CTRL(pipe, id), PS_SCALER_EN |
 			PS_FILTER_MEDIUM | scaler_state->scalers[id].mode);
 		I915_WRITE(SKL_PS_WIN_POS(pipe, id), crtc->config->pch_pfit.pos);
 		I915_WRITE(SKL_PS_WIN_SZ(pipe, id), crtc->config->pch_pfit.size);
-
-		DRM_DEBUG_KMS("for crtc_state = %p scaler_id = %d\n", crtc->config, id);
 	}
 }
 
@@ -6262,36 +6259,25 @@ skl_dpll0_disable(struct drm_i915_privat
 	dev_priv->cdclk_pll.vco = 0;
 }
 
-static bool skl_cdclk_pcu_ready(struct drm_i915_private *dev_priv)
-{
-	int ret;
-	u32 val;
-
-	/* inform PCU we want to change CDCLK */
-	val = SKL_CDCLK_PREPARE_FOR_CHANGE;
-	mutex_lock(&dev_priv->rps.hw_lock);
-	ret = sandybridge_pcode_read(dev_priv, SKL_PCODE_CDCLK_CONTROL, &val);
-	mutex_unlock(&dev_priv->rps.hw_lock);
-
-	return ret == 0 && (val & SKL_CDCLK_READY_FOR_CHANGE);
-}
-
-static bool skl_cdclk_wait_for_pcu_ready(struct drm_i915_private *dev_priv)
-{
-	return _wait_for(skl_cdclk_pcu_ready(dev_priv), 3000, 10) == 0;
-}
-
 static void skl_set_cdclk(struct drm_i915_private *dev_priv, int cdclk, int vco)
 {
 	struct drm_device *dev = &dev_priv->drm;
 	u32 freq_select, pcu_ack;
+	int ret;
 
 	WARN_ON((cdclk == 24000) != (vco == 0));
 
 	DRM_DEBUG_DRIVER("Changing CDCLK to %d kHz (VCO %d kHz)\n", cdclk, vco);
 
-	if (!skl_cdclk_wait_for_pcu_ready(dev_priv)) {
-		DRM_ERROR("failed to inform PCU about cdclk change\n");
+	mutex_lock(&dev_priv->rps.hw_lock);
+	ret = skl_pcode_request(dev_priv, SKL_PCODE_CDCLK_CONTROL,
+				SKL_CDCLK_PREPARE_FOR_CHANGE,
+				SKL_CDCLK_READY_FOR_CHANGE,
+				SKL_CDCLK_READY_FOR_CHANGE, 3);
+	mutex_unlock(&dev_priv->rps.hw_lock);
+	if (ret) {
+		DRM_ERROR("Failed to inform PCU about cdclk change (%d)\n",
+			  ret);
 		return;
 	}
 
@@ -6876,6 +6862,12 @@ static void intel_crtc_disable_noatomic(
 	}
 
 	state = drm_atomic_state_alloc(crtc->dev);
+	if (!state) {
+		DRM_DEBUG_KMS("failed to disable [CRTC:%d:%s], out of memory",
+			      crtc->base.id, crtc->name);
+		return;
+	}
+
 	state->acquire_ctx = crtc->dev->mode_config.acquire_ctx;
 
 	/* Everything's already locked, -EDEADLK can't happen. */
@@ -13775,6 +13767,15 @@ static void update_scanline_offset(struc
 	 * type. For DP ports it behaves like most other platforms, but on HDMI
 	 * there's an extra 1 line difference. So we need to add two instead of
 	 * one to the value.
+	 *
+	 * On VLV/CHV DSI the scanline counter would appear to increment
+	 * approx. 1/3 of a scanline before start of vblank. Unfortunately
+	 * that means we can't tell whether we're in vblank or not while
+	 * we're on that particular line. We must still set scanline_offset
+	 * to 1 so that the vblank timestamps come out correct when we query
+	 * the scanline counter from within the vblank interrupt handler.
+	 * However if queried just before the start of vblank we'll get an
+	 * answer that's slightly in the future.
 	 */
 	if (IS_GEN2(dev)) {
 		const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
@@ -13970,8 +13971,9 @@ static int intel_modeset_checks(struct d
 
 		DRM_DEBUG_KMS("New cdclk calculated to be atomic %u, actual %u\n",
 			      intel_state->cdclk, intel_state->dev_cdclk);
-	} else
+	} else {
 		to_intel_atomic_state(state)->cdclk = dev_priv->atomic_cdclk_freq;
+	}
 
 	intel_modeset_clear_plls(state);
 
@@ -14072,8 +14074,9 @@ static int intel_atomic_check(struct drm
 
 		if (ret)
 			return ret;
-	} else
-		intel_state->cdclk = dev_priv->cdclk_freq;
+	} else {
+		intel_state->cdclk = dev_priv->atomic_cdclk_freq;
+	}
 
 	ret = drm_atomic_helper_check_planes(dev, state);
 	if (ret)
@@ -16441,6 +16444,7 @@ void intel_modeset_init(struct drm_devic
 
 	intel_update_czclk(dev_priv);
 	intel_update_cdclk(dev);
+	dev_priv->atomic_cdclk_freq = dev_priv->cdclk_freq;
 
 	intel_shared_dpll_init(dev);
 
@@ -16757,7 +16761,6 @@ static void intel_modeset_readout_hw_sta
 
 	for_each_intel_crtc(dev, crtc) {
 		struct intel_crtc_state *crtc_state = crtc->config;
-		int pixclk = 0;
 
 		__drm_atomic_helper_crtc_destroy_state(&crtc_state->base);
 		memset(crtc_state, 0, sizeof(*crtc_state));
@@ -16769,23 +16772,9 @@ static void intel_modeset_readout_hw_sta
 		crtc->base.enabled = crtc_state->base.enable;
 		crtc->active = crtc_state->base.active;
 
-		if (crtc_state->base.active) {
+		if (crtc_state->base.active)
 			dev_priv->active_crtcs |= 1 << crtc->pipe;
 
-			if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
-				pixclk = ilk_pipe_pixel_rate(crtc_state);
-			else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-				pixclk = crtc_state->base.adjusted_mode.crtc_clock;
-			else
-				WARN_ON(dev_priv->display.modeset_calc_cdclk);
-
-			/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
-			if (IS_BROADWELL(dev_priv) && crtc_state->ips_enabled)
-				pixclk = DIV_ROUND_UP(pixclk * 100, 95);
-		}
-
-		dev_priv->min_pixclk[crtc->pipe] = pixclk;
-
 		readout_plane_state(crtc);
 
 		DRM_DEBUG_KMS("[CRTC:%d:%s] hw state readout: %s\n",
@@ -16859,6 +16848,8 @@ static void intel_modeset_readout_hw_sta
 	}
 
 	for_each_intel_crtc(dev, crtc) {
+		int pixclk = 0;
+
 		crtc->base.hwmode = crtc->config->base.adjusted_mode;
 
 		memset(&crtc->base.mode, 0, sizeof(crtc->base.mode));
@@ -16886,10 +16877,23 @@ static void intel_modeset_readout_hw_sta
 			 */
 			crtc->base.state->mode.private_flags = I915_MODE_FLAG_INHERITED;
 
+			if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
+				pixclk = ilk_pipe_pixel_rate(crtc->config);
+			else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
+				pixclk = crtc->config->base.adjusted_mode.crtc_clock;
+			else
+				WARN_ON(dev_priv->display.modeset_calc_cdclk);
+
+			/* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
+			if (IS_BROADWELL(dev_priv) && crtc->config->ips_enabled)
+				pixclk = DIV_ROUND_UP(pixclk * 100, 95);
+
 			drm_calc_timestamping_constants(&crtc->base, &crtc->base.hwmode);
 			update_scanline_offset(crtc);
 		}
 
+		dev_priv->min_pixclk[crtc->pipe] = pixclk;
+
 		intel_pipe_config_sanity_check(dev_priv, crtc->config);
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_dp.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_dp.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_dp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_dp.c	2017-09-27 08:40:05.000000000 -0400
@@ -280,7 +280,8 @@ intel_dp_init_panel_power_sequencer(stru
 				    struct intel_dp *intel_dp);
 static void
 intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev,
-					      struct intel_dp *intel_dp);
+					      struct intel_dp *intel_dp,
+					      bool force_disable_vdd);
 static void
 intel_dp_pps_init(struct drm_device *dev, struct intel_dp *intel_dp);
 
@@ -442,7 +443,7 @@ vlv_power_sequencer_pipe(struct intel_dp
 
 	/* init power sequencer on this pipe and port */
 	intel_dp_init_panel_power_sequencer(dev, intel_dp);
-	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp);
+	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp, true);
 
 	/*
 	 * Even vdd force doesn't work until we've made
@@ -479,7 +480,7 @@ bxt_power_sequencer_idx(struct intel_dp
 	 * Only the HW needs to be reprogrammed, the SW state is fixed and
 	 * has been setup during connector init.
 	 */
-	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp);
+	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp, false);
 
 	return 0;
 }
@@ -562,7 +563,7 @@ vlv_initial_power_sequencer_setup(struct
 		      port_name(port), pipe_name(intel_dp->pps_pipe));
 
 	intel_dp_init_panel_power_sequencer(dev, intel_dp);
-	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp);
+	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp, false);
 }
 
 void intel_power_sequencer_reset(struct drm_i915_private *dev_priv)
@@ -2831,6 +2832,9 @@ static void vlv_detach_power_sequencer(s
 	enum pipe pipe = intel_dp->pps_pipe;
 	i915_reg_t pp_on_reg = PP_ON_DELAYS(pipe);
 
+	if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
+		return;
+
 	edp_panel_vdd_off_sync(intel_dp);
 
 	/*
@@ -2858,9 +2862,6 @@ static void vlv_steal_power_sequencer(st
 
 	lockdep_assert_held(&dev_priv->pps_mutex);
 
-	if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
-		return;
-
 	for_each_intel_encoder(dev, encoder) {
 		struct intel_dp *intel_dp;
 		enum port port;
@@ -2924,7 +2925,7 @@ static void vlv_init_panel_power_sequenc
 
 	/* init power sequencer on this pipe and port */
 	intel_dp_init_panel_power_sequencer(dev, intel_dp);
-	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp);
+	intel_dp_init_panel_power_sequencer_registers(dev, intel_dp, true);
 }
 
 static void vlv_pre_enable_dp(struct intel_encoder *encoder,
@@ -4017,6 +4018,11 @@ intel_dp_check_link_status(struct intel_
 	if (!to_intel_crtc(intel_encoder->base.crtc)->active)
 		return;
 
+	/* FIXME: we need to synchronize this sort of stuff with hardware
+	 * readout. Currently fast link training doesn't work on boot-up. */
+	if (!intel_dp->lane_count)
+		return;
+
 	/* if link training is requested we should perform it always */
 	if ((intel_dp->compliance_test_type == DP_TEST_LINK_TRAINING) ||
 	    (!drm_dp_channel_eq_ok(link_status, intel_dp->lane_count))) {
@@ -5054,7 +5060,8 @@ intel_dp_init_panel_power_sequencer(stru
 
 static void
 intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev,
-					      struct intel_dp *intel_dp)
+					      struct intel_dp *intel_dp,
+					      bool force_disable_vdd)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	u32 pp_on, pp_off, pp_div, port_sel = 0;
@@ -5067,6 +5074,31 @@ intel_dp_init_panel_power_sequencer_regi
 
 	intel_pps_get_registers(dev_priv, intel_dp, &regs);
 
+	/*
+	 * On some VLV machines the BIOS can leave the VDD
+	 * enabled even on power seqeuencers which aren't
+	 * hooked up to any port. This would mess up the
+	 * power domain tracking the first time we pick
+	 * one of these power sequencers for use since
+	 * edp_panel_vdd_on() would notice that the VDD was
+	 * already on and therefore wouldn't grab the power
+	 * domain reference. Disable VDD first to avoid this.
+	 * This also avoids spuriously turning the VDD on as
+	 * soon as the new power seqeuencer gets initialized.
+	 */
+	if (force_disable_vdd) {
+		u32 pp = ironlake_get_pp_control(intel_dp);
+
+		WARN(pp & PANEL_POWER_ON, "Panel power already on\n");
+
+		if (pp & EDP_FORCE_VDD)
+			DRM_DEBUG_KMS("VDD already on, disabling first\n");
+
+		pp &= ~EDP_FORCE_VDD;
+
+		I915_WRITE(regs.pp_ctrl, pp);
+	}
+
 	pp_on = (seq->t1_t3 << PANEL_POWER_UP_DELAY_SHIFT) |
 		(seq->t8 << PANEL_LIGHT_ON_DELAY_SHIFT);
 	pp_off = (seq->t9 << PANEL_LIGHT_OFF_DELAY_SHIFT) |
@@ -5119,7 +5151,7 @@ static void intel_dp_pps_init(struct drm
 		vlv_initial_power_sequencer_setup(intel_dp);
 	} else {
 		intel_dp_init_panel_power_sequencer(dev, intel_dp);
-		intel_dp_init_panel_power_sequencer_registers(dev, intel_dp);
+		intel_dp_init_panel_power_sequencer_registers(dev, intel_dp, false);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_dpll_mgr.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_dpll_mgr.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_dpll_mgr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_dpll_mgr.c	2017-09-27 08:40:05.000000000 -0400
@@ -1723,7 +1723,8 @@ bxt_get_dpll(struct intel_crtc *crtc,
 		return NULL;
 
 	if ((encoder->type == INTEL_OUTPUT_DP ||
-	     encoder->type == INTEL_OUTPUT_EDP) &&
+	     encoder->type == INTEL_OUTPUT_EDP ||
+	     encoder->type == INTEL_OUTPUT_DP_MST) &&
 	    !bxt_ddi_dp_set_dpll_hw_state(clock, &dpll_hw_state))
 		return NULL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c	2017-09-27 08:40:05.000000000 -0400
@@ -296,7 +296,8 @@ static void chv_exec_gpio(struct drm_i91
 	mutex_lock(&dev_priv->sb_lock);
 	vlv_iosf_sb_write(dev_priv, port, cfg1, 0);
 	vlv_iosf_sb_write(dev_priv, port, cfg0,
-			  CHV_GPIO_GPIOCFG_GPO | CHV_GPIO_GPIOTXSTATE(value));
+			  CHV_GPIO_GPIOEN | CHV_GPIO_GPIOCFG_GPO |
+			  CHV_GPIO_GPIOTXSTATE(value));
 	mutex_unlock(&dev_priv->sb_lock);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_fbdev.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_fbdev.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_fbdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_fbdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -745,6 +745,9 @@ void intel_fbdev_initial_config_async(st
 {
 	struct intel_fbdev *ifbdev = to_i915(dev)->fbdev;
 
+	if (!ifbdev)
+		return;
+
 	ifbdev->cookie = async_schedule(intel_fbdev_initial_config, ifbdev);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_hotplug.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_hotplug.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_hotplug.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_hotplug.c	2017-09-27 08:40:05.000000000 -0400
@@ -219,7 +219,7 @@ static void intel_hpd_irq_storm_reenable
 			}
 		}
 	}
-	if (dev_priv->display.hpd_irq_setup)
+	if (dev_priv->display_irqs_enabled && dev_priv->display.hpd_irq_setup)
 		dev_priv->display.hpd_irq_setup(dev_priv);
 	spin_unlock_irq(&dev_priv->irq_lock);
 
@@ -425,7 +425,7 @@ void intel_hpd_irq_handler(struct drm_i9
 		}
 	}
 
-	if (storm_detected)
+	if (storm_detected && dev_priv->display_irqs_enabled)
 		dev_priv->display.hpd_irq_setup(dev_priv);
 	spin_unlock(&dev_priv->irq_lock);
 
@@ -471,10 +471,12 @@ void intel_hpd_init(struct drm_i915_priv
 	 * Interrupt setup is already guaranteed to be single-threaded, this is
 	 * just to make the assert_spin_locked checks happy.
 	 */
-	spin_lock_irq(&dev_priv->irq_lock);
-	if (dev_priv->display.hpd_irq_setup)
-		dev_priv->display.hpd_irq_setup(dev_priv);
-	spin_unlock_irq(&dev_priv->irq_lock);
+	if (dev_priv->display_irqs_enabled && dev_priv->display.hpd_irq_setup) {
+		spin_lock_irq(&dev_priv->irq_lock);
+		if (dev_priv->display_irqs_enabled)
+			dev_priv->display.hpd_irq_setup(dev_priv);
+		spin_unlock_irq(&dev_priv->irq_lock);
+	}
 }
 
 static void i915_hpd_poll_init_work(struct work_struct *work)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_lrc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_lrc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_lrc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_lrc.c	2017-09-27 08:40:05.000000000 -0400
@@ -858,8 +858,7 @@ static inline int gen8_emit_flush_cohere
 	 * this batch updates GEN8_L3SQCREG4 with default value we need to
 	 * set this bit here to retain the WA during flush.
 	 */
-	if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_E0) ||
-	    IS_KBL_REVID(dev_priv, 0, KBL_REVID_E0))
+	if (IS_SKL_REVID(dev_priv, 0, SKL_REVID_E0))
 		l3sqc4_flush |= GEN8_LQSC_RO_PERF_DIS;
 
 	wa_ctx_emit(batch, index, (MI_STORE_REGISTER_MEM_GEN8 |
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_opregion.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_opregion.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_opregion.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_opregion.c	2017-09-27 08:40:05.000000000 -0400
@@ -1031,7 +1031,18 @@ int intel_opregion_setup(struct drm_i915
 			opregion->vbt_size = vbt_size;
 		} else {
 			vbt = base + OPREGION_VBT_OFFSET;
-			vbt_size = OPREGION_ASLE_EXT_OFFSET - OPREGION_VBT_OFFSET;
+			/*
+			 * The VBT specification says that if the ASLE ext
+			 * mailbox is not used its area is reserved, but
+			 * on some CHT boards the VBT extends into the
+			 * ASLE ext area. Allow this even though it is
+			 * against the spec, so we do not end up rejecting
+			 * the VBT on those boards (and end up not finding the
+			 * LCD panel because of this).
+			 */
+			vbt_size = (mboxes & MBOX_ASLE_EXT) ?
+				OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE;
+			vbt_size -= OPREGION_VBT_OFFSET;
 			if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
 				DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (Mailbox #4)\n");
 				opregion->vbt = vbt;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_overlay.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_overlay.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_overlay.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_overlay.c	2017-09-27 08:40:05.000000000 -0400
@@ -216,7 +216,8 @@ static void intel_overlay_submit_request
 {
 	GEM_BUG_ON(i915_gem_active_peek(&overlay->last_flip,
 					&overlay->i915->drm.struct_mutex));
-	overlay->last_flip.retire = retire;
+	i915_gem_active_set_retire_fn(&overlay->last_flip, retire,
+				      &overlay->i915->drm.struct_mutex);
 	i915_gem_active_set(&overlay->last_flip, req);
 	i915_add_request(req);
 }
@@ -839,8 +840,8 @@ static int intel_overlay_do_put_image(st
 	if (ret)
 		goto out_unpin;
 
-	i915_gem_track_fb(overlay->vma->obj, new_bo,
-			  INTEL_FRONTBUFFER_OVERLAY(pipe));
+	i915_gem_track_fb(overlay->vma ? overlay->vma->obj : NULL,
+			  vma->obj, INTEL_FRONTBUFFER_OVERLAY(pipe));
 
 	overlay->old_vma = overlay->vma;
 	overlay->vma = vma;
@@ -1430,6 +1431,8 @@ void intel_setup_overlay(struct drm_i915
 	overlay->contrast = 75;
 	overlay->saturation = 146;
 
+	init_request_active(&overlay->last_flip, NULL);
+
 	regs = intel_overlay_map_regs(overlay);
 	if (!regs)
 		goto out_unpin_bo;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_pm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_pm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_pm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_pm.c	2017-09-27 08:40:05.000000000 -0400
@@ -2879,6 +2879,21 @@ skl_wm_plane_id(const struct intel_plane
 	}
 }
 
+/*
+ * FIXME: We still don't have the proper code detect if we need to apply the WA,
+ * so assume we'll always need it in order to avoid underruns.
+ */
+static bool skl_needs_memory_bw_wa(struct intel_atomic_state *state)
+{
+	struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+
+	if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv) ||
+	    IS_KABYLAKE(dev_priv))
+		return true;
+
+	return false;
+}
+
 static bool
 intel_has_sagv(struct drm_i915_private *dev_priv)
 {
@@ -2940,24 +2955,10 @@ intel_enable_sagv(struct drm_i915_privat
 	return 0;
 }
 
-static int
-intel_do_sagv_disable(struct drm_i915_private *dev_priv)
-{
-	int ret;
-	uint32_t temp = GEN9_SAGV_DISABLE;
-
-	ret = sandybridge_pcode_read(dev_priv, GEN9_PCODE_SAGV_CONTROL,
-				     &temp);
-	if (ret)
-		return ret;
-	else
-		return temp & GEN9_SAGV_IS_DISABLED;
-}
-
 int
 intel_disable_sagv(struct drm_i915_private *dev_priv)
 {
-	int ret, result;
+	int ret;
 
 	if (!intel_has_sagv(dev_priv))
 		return 0;
@@ -2969,25 +2970,23 @@ intel_disable_sagv(struct drm_i915_priva
 	mutex_lock(&dev_priv->rps.hw_lock);
 
 	/* bspec says to keep retrying for at least 1 ms */
-	ret = wait_for(result = intel_do_sagv_disable(dev_priv), 1);
+	ret = skl_pcode_request(dev_priv, GEN9_PCODE_SAGV_CONTROL,
+				GEN9_SAGV_DISABLE,
+				GEN9_SAGV_IS_DISABLED, GEN9_SAGV_IS_DISABLED,
+				1);
 	mutex_unlock(&dev_priv->rps.hw_lock);
 
-	if (ret == -ETIMEDOUT) {
-		DRM_ERROR("Request to disable SAGV timed out\n");
-		return -ETIMEDOUT;
-	}
-
 	/*
 	 * Some skl systems, pre-release machines in particular,
 	 * don't actually have an SAGV.
 	 */
-	if (IS_SKYLAKE(dev_priv) && result == -ENXIO) {
+	if (IS_SKYLAKE(dev_priv) && ret == -ENXIO) {
 		DRM_DEBUG_DRIVER("No SAGV found on system, ignoring\n");
 		dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED;
 		return 0;
-	} else if (result < 0) {
-		DRM_ERROR("Failed to disable the SAGV\n");
-		return result;
+	} else if (ret < 0) {
+		DRM_ERROR("Failed to disable the SAGV (%d)\n", ret);
+		return ret;
 	}
 
 	dev_priv->sagv_status = I915_SAGV_DISABLED;
@@ -2999,9 +2998,10 @@ bool intel_can_enable_sagv(struct drm_at
 	struct drm_device *dev = state->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
-	struct drm_crtc *crtc;
+	struct intel_crtc *crtc;
+	struct intel_plane *plane;
 	enum pipe pipe;
-	int level, plane;
+	int level, id, latency;
 
 	if (!intel_has_sagv(dev_priv))
 		return false;
@@ -3019,27 +3019,36 @@ bool intel_can_enable_sagv(struct drm_at
 
 	/* Since we're now guaranteed to only have one active CRTC... */
 	pipe = ffs(intel_state->active_crtcs) - 1;
-	crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+	crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
 
-	if (crtc->state->mode.flags & DRM_MODE_FLAG_INTERLACE)
+	if (crtc->base.state->mode.flags & DRM_MODE_FLAG_INTERLACE)
 		return false;
 
-	for_each_plane(dev_priv, pipe, plane) {
+	for_each_intel_plane_on_crtc(dev, crtc, plane) {
+		id = skl_wm_plane_id(plane);
+
 		/* Skip this plane if it's not enabled */
-		if (intel_state->wm_results.plane[pipe][plane][0] == 0)
+		if (intel_state->wm_results.plane[pipe][id][0] == 0)
 			continue;
 
 		/* Find the highest enabled wm level for this plane */
 		for (level = ilk_wm_max_level(dev);
-		     intel_state->wm_results.plane[pipe][plane][level] == 0; --level)
+		     intel_state->wm_results.plane[pipe][id][level] == 0; --level)
 		     { }
 
+		latency = dev_priv->wm.skl_latency[level];
+
+		if (skl_needs_memory_bw_wa(intel_state) &&
+		    plane->base.state->fb->modifier[0] ==
+		    I915_FORMAT_MOD_X_TILED)
+			latency += 15;
+
 		/*
 		 * If any of the planes on this pipe don't enable wm levels
 		 * that incur memory latencies higher then 30µs we can't enable
 		 * the SAGV
 		 */
-		if (dev_priv->wm.skl_latency[level] < SKL_SAGV_BLOCK_TIME)
+		if (latency < SKL_SAGV_BLOCK_TIME)
 			return false;
 	}
 
@@ -3549,12 +3558,18 @@ static int skl_compute_plane_wm(const st
 	uint32_t width = 0, height = 0;
 	uint32_t plane_pixel_rate;
 	uint32_t y_tile_minimum, y_min_scanlines;
+	struct intel_atomic_state *state =
+		to_intel_atomic_state(cstate->base.state);
+	bool apply_memory_bw_wa = skl_needs_memory_bw_wa(state);
 
 	if (latency == 0 || !cstate->base.active || !intel_pstate->base.visible) {
 		*enabled = false;
 		return 0;
 	}
 
+	if (apply_memory_bw_wa && fb->modifier[0] == I915_FORMAT_MOD_X_TILED)
+		latency += 15;
+
 	width = drm_rect_width(&intel_pstate->base.src) >> 16;
 	height = drm_rect_height(&intel_pstate->base.src) >> 16;
 
@@ -3586,6 +3601,9 @@ static int skl_compute_plane_wm(const st
 		y_min_scanlines = 4;
 	}
 
+	if (apply_memory_bw_wa)
+		y_min_scanlines *= 2;
+
 	plane_bytes_per_line = width * cpp;
 	if (fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
 	    fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED) {
@@ -4096,11 +4114,19 @@ skl_compute_wm(struct drm_atomic_state *
 	struct drm_crtc_state *cstate;
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
 	struct skl_wm_values *results = &intel_state->wm_results;
+	struct drm_device *dev = state->dev;
 	struct skl_pipe_wm *pipe_wm;
 	bool changed = false;
 	int ret, i;
 
 	/*
+	 * When we distrust bios wm we always need to recompute to set the
+	 * expected DDB allocations for each CRTC.
+	 */
+	if (to_i915(dev)->wm.distrust_bios_wm)
+		changed = true;
+
+	/*
 	 * If this transaction isn't actually touching any CRTC's, don't
 	 * bother with watermark calculation.  Note that if we pass this
 	 * test, we're guaranteed to hold at least one CRTC state mutex,
@@ -4110,6 +4136,7 @@ skl_compute_wm(struct drm_atomic_state *
 	 */
 	for_each_crtc_in_state(state, crtc, cstate, i)
 		changed = true;
+
 	if (!changed)
 		return 0;
 
@@ -4885,6 +4912,12 @@ static void gen6_set_rps_thresholds(stru
 		break;
 	}
 
+	/* When byt can survive without system hang with dynamic
+	 * sw freq adjustments, this restriction can be lifted.
+	 */
+	if (IS_VALLEYVIEW(dev_priv))
+		goto skip_hw_write;
+
 	I915_WRITE(GEN6_RP_UP_EI,
 		   GT_INTERVAL_FROM_US(dev_priv, ei_up));
 	I915_WRITE(GEN6_RP_UP_THRESHOLD,
@@ -4905,6 +4938,7 @@ static void gen6_set_rps_thresholds(stru
 		   GEN6_RP_UP_BUSY_AVG |
 		   GEN6_RP_DOWN_IDLE_AVG);
 
+skip_hw_write:
 	dev_priv->rps.power = new_power;
 	dev_priv->rps.up_threshold = threshold_up;
 	dev_priv->rps.down_threshold = threshold_down;
@@ -4915,8 +4949,9 @@ static u32 gen6_rps_pm_mask(struct drm_i
 {
 	u32 mask = 0;
 
+	/* We use UP_EI_EXPIRED interupts for both up/down in manual mode */
 	if (val > dev_priv->rps.min_freq_softlimit)
-		mask |= GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_DOWN_THRESHOLD | GEN6_PM_RP_DOWN_TIMEOUT;
+		mask |= GEN6_PM_RP_UP_EI_EXPIRED | GEN6_PM_RP_DOWN_THRESHOLD | GEN6_PM_RP_DOWN_TIMEOUT;
 	if (val < dev_priv->rps.max_freq_softlimit)
 		mask |= GEN6_PM_RP_UP_EI_EXPIRED | GEN6_PM_RP_UP_THRESHOLD;
 
@@ -5016,7 +5051,7 @@ void gen6_rps_busy(struct drm_i915_priva
 {
 	mutex_lock(&dev_priv->rps.hw_lock);
 	if (dev_priv->rps.enabled) {
-		if (dev_priv->pm_rps_events & (GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED))
+		if (dev_priv->pm_rps_events & GEN6_PM_RP_UP_EI_EXPIRED)
 			gen6_rps_reset_ei(dev_priv);
 		I915_WRITE(GEN6_PMINTRMSK,
 			   gen6_rps_pm_mask(dev_priv, dev_priv->rps.cur_freq));
@@ -7921,6 +7956,82 @@ int sandybridge_pcode_write(struct drm_i
 	return 0;
 }
 
+static bool skl_pcode_try_request(struct drm_i915_private *dev_priv, u32 mbox,
+				  u32 request, u32 reply_mask, u32 reply,
+				  u32 *status)
+{
+	u32 val = request;
+
+	*status = sandybridge_pcode_read(dev_priv, mbox, &val);
+
+	return *status || ((val & reply_mask) == reply);
+}
+
+/**
+ * skl_pcode_request - send PCODE request until acknowledgment
+ * @dev_priv: device private
+ * @mbox: PCODE mailbox ID the request is targeted for
+ * @request: request ID
+ * @reply_mask: mask used to check for request acknowledgment
+ * @reply: value used to check for request acknowledgment
+ * @timeout_base_ms: timeout for polling with preemption enabled
+ *
+ * Keep resending the @request to @mbox until PCODE acknowledges it, PCODE
+ * reports an error or an overall timeout of @timeout_base_ms+50 ms expires.
+ * The request is acknowledged once the PCODE reply dword equals @reply after
+ * applying @reply_mask. Polling is first attempted with preemption enabled
+ * for @timeout_base_ms and if this times out for another 50 ms with
+ * preemption disabled.
+ *
+ * Returns 0 on success, %-ETIMEDOUT in case of a timeout, <0 in case of some
+ * other error as reported by PCODE.
+ */
+int skl_pcode_request(struct drm_i915_private *dev_priv, u32 mbox, u32 request,
+		      u32 reply_mask, u32 reply, int timeout_base_ms)
+{
+	u32 status;
+	int ret;
+
+	WARN_ON(!mutex_is_locked(&dev_priv->rps.hw_lock));
+
+#define COND skl_pcode_try_request(dev_priv, mbox, request, reply_mask, reply, \
+				   &status)
+
+	/*
+	 * Prime the PCODE by doing a request first. Normally it guarantees
+	 * that a subsequent request, at most @timeout_base_ms later, succeeds.
+	 * _wait_for() doesn't guarantee when its passed condition is evaluated
+	 * first, so send the first request explicitly.
+	 */
+	if (COND) {
+		ret = 0;
+		goto out;
+	}
+	ret = _wait_for(COND, timeout_base_ms * 1000, 10);
+	if (!ret)
+		goto out;
+
+	/*
+	 * The above can time out if the number of requests was low (2 in the
+	 * worst case) _and_ PCODE was busy for some reason even after a
+	 * (queued) request and @timeout_base_ms delay. As a workaround retry
+	 * the poll with preemption disabled to maximize the number of
+	 * requests. Increase the timeout from @timeout_base_ms to 50ms to
+	 * account for interrupts that could reduce the number of these
+	 * requests, and for any quirks of the PCODE firmware that delays
+	 * the request completion.
+	 */
+	DRM_DEBUG_KMS("PCODE timeout, retrying with preemption disabled\n");
+	WARN_ON_ONCE(timeout_base_ms > 3);
+	preempt_disable();
+	ret = wait_for_atomic(COND, 50);
+	preempt_enable();
+
+out:
+	return ret ? ret : status;
+#undef COND
+}
+
 static int byt_gpu_freq(struct drm_i915_private *dev_priv, int val)
 {
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_psr.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_psr.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_psr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_psr.c	2017-09-27 08:40:05.000000000 -0400
@@ -825,13 +825,9 @@ void intel_psr_init(struct drm_device *d
 	dev_priv->psr_mmio_base = IS_HASWELL(dev_priv) ?
 		HSW_EDP_PSR_BASE : BDW_EDP_PSR_BASE;
 
-	/* Per platform default */
-	if (i915.enable_psr == -1) {
-		if (IS_HASWELL(dev) || IS_BROADWELL(dev))
-			i915.enable_psr = 1;
-		else
-			i915.enable_psr = 0;
-	}
+	/* Per platform default: all disabled. */
+	if (i915.enable_psr == -1)
+		i915.enable_psr = 0;
 
 	/* Set link_standby x link_off defaults */
 	if (IS_HASWELL(dev) || IS_BROADWELL(dev))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_ringbuffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -1153,14 +1153,6 @@ static int kbl_init_workarounds(struct i
 		WA_SET_BIT_MASKED(HDC_CHICKEN0,
 				  HDC_FENCE_DEST_SLM_DISABLE);
 
-	/* GEN8_L3SQCREG4 has a dependency with WA batch so any new changes
-	 * involving this register should also be added to WA batch as required.
-	 */
-	if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_E0))
-		/* WaDisableLSQCROPERFforOCL:kbl */
-		I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) |
-			   GEN8_LQSC_RO_PERF_DIS);
-
 	/* WaToEnableHwFixForPushConstHWBug:kbl */
 	if (IS_KBL_REVID(dev_priv, KBL_REVID_C0, REVID_FOREVER))
 		WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_runtime_pm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_runtime_pm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_runtime_pm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_runtime_pm.c	2017-09-27 08:40:05.000000000 -0400
@@ -1065,7 +1065,18 @@ static bool vlv_power_well_enabled(struc
 
 static void vlv_init_display_clock_gating(struct drm_i915_private *dev_priv)
 {
-	I915_WRITE(DSPCLK_GATE_D, VRHUNIT_CLOCK_GATE_DISABLE);
+	u32 val;
+
+	/*
+	 * On driver load, a pipe may be active and driving a DSI display.
+	 * Preserve DPOUNIT_CLOCK_GATE_DISABLE to avoid the pipe getting stuck
+	 * (and never recovering) in this case. intel_dsi_post_disable() will
+	 * clear it when we turn off the display.
+	 */
+	val = I915_READ(DSPCLK_GATE_D);
+	val &= DPOUNIT_CLOCK_GATE_DISABLE;
+	val |= VRHUNIT_CLOCK_GATE_DISABLE;
+	I915_WRITE(DSPCLK_GATE_D, val);
 
 	/*
 	 * Disable trickle feed and enable pnd deadline calculation
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_sprite.c linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_sprite.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/i915/intel_sprite.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/i915/intel_sprite.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,10 +81,13 @@ int intel_usecs_to_scanlines(const struc
  */
 void intel_pipe_update_start(struct intel_crtc *crtc)
 {
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 	const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
 	long timeout = msecs_to_jiffies_timeout(1);
 	int scanline, min, max, vblank_start;
 	wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
+	bool need_vlv_dsi_wa = (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
+		intel_crtc_has_type(crtc->config, INTEL_OUTPUT_DSI);
 	DEFINE_WAIT(wait);
 
 	vblank_start = adjusted_mode->crtc_vblank_start;
@@ -136,6 +139,24 @@ void intel_pipe_update_start(struct inte
 
 	drm_crtc_vblank_put(&crtc->base);
 
+	/*
+	 * On VLV/CHV DSI the scanline counter would appear to
+	 * increment approx. 1/3 of a scanline before start of vblank.
+	 * The registers still get latched at start of vblank however.
+	 * This means we must not write any registers on the first
+	 * line of vblank (since not the whole line is actually in
+	 * vblank). And unfortunately we can't use the interrupt to
+	 * wait here since it will fire too soon. We could use the
+	 * frame start interrupt instead since it will fire after the
+	 * critical scanline, but that would require more changes
+	 * in the interrupt code. So for now we'll just do the nasty
+	 * thing and poll for the bad scanline to pass us by.
+	 *
+	 * FIXME figure out if BXT+ DSI suffers from this as well
+	 */
+	while (need_vlv_dsi_wa && scanline == vblank_start)
+		scanline = intel_get_crtc_scanline(crtc);
+
 	crtc->debug.scanline_start = scanline;
 	crtc->debug.start_vbl_time = ktime_get();
 	crtc->debug.start_vbl_count = intel_crtc_get_vblank_counter(crtc);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/imx/imx-tve.c linux-libre-4.9.52-gnu/drivers/gpu/drm/imx/imx-tve.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/imx/imx-tve.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/imx/imx-tve.c	2017-09-27 08:40:05.000000000 -0400
@@ -98,6 +98,8 @@
 /* TVE_TST_MODE_REG */
 #define TVE_TVDAC_TEST_MODE_MASK	(0x7 << 0)
 
+#define IMX_TVE_DAC_VOLTAGE	2750000
+
 enum {
 	TVE_MODE_TVOUT,
 	TVE_MODE_VGA,
@@ -628,9 +630,8 @@ static int imx_tve_bind(struct device *d
 
 	tve->dac_reg = devm_regulator_get(dev, "dac");
 	if (!IS_ERR(tve->dac_reg)) {
-		ret = regulator_set_voltage(tve->dac_reg, 2750000, 2750000);
-		if (ret)
-			return ret;
+		if (regulator_get_voltage(tve->dac_reg) != IMX_TVE_DAC_VOLTAGE)
+			dev_warn(dev, "dac voltage is not %d uV\n", IMX_TVE_DAC_VOLTAGE);
 		ret = regulator_enable(tve->dac_reg);
 		if (ret)
 			return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/mediatek/mtk_hdmi.c linux-libre-4.9.52-gnu/drivers/gpu/drm/mediatek/mtk_hdmi.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/mediatek/mtk_hdmi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/mediatek/mtk_hdmi.c	2017-09-27 08:40:05.000000000 -0400
@@ -1061,7 +1061,7 @@ static int mtk_hdmi_setup_vendor_specifi
 	}
 
 	err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
-	if (err) {
+	if (err < 0) {
 		dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n",
 			err);
 		return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/mga/mga_dma.c linux-libre-4.9.52-gnu/drivers/gpu/drm/mga/mga_dma.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/mga/mga_dma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/mga/mga_dma.c	2017-09-27 08:40:05.000000000 -0400
@@ -392,6 +392,24 @@ int mga_driver_load(struct drm_device *d
 	drm_mga_private_t *dev_priv;
 	int ret;
 
+	/* There are PCI versions of the G450.  These cards have the
+	 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
+	 * bridge chip.  We detect these cards, which are not currently
+	 * supported by this driver, by looking at the device ID of the
+	 * bus the "card" is on.  If vendor is 0x3388 (Hint Corp) and the
+	 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
+	 * device.
+	 */
+	if ((dev->pdev->device == 0x0525) && dev->pdev->bus->self
+	    && (dev->pdev->bus->self->vendor == 0x3388)
+	    && (dev->pdev->bus->self->device == 0x0021)
+	    && dev->agp) {
+		/* FIXME: This should be quirked in the pci core, but oh well
+		 * the hw probably stopped existing. */
+		arch_phys_wc_del(dev->agp->agp_mtrr);
+		kfree(dev->agp);
+		dev->agp = NULL;
+	}
 	dev_priv = kzalloc(sizeof(drm_mga_private_t), GFP_KERNEL);
 	if (!dev_priv)
 		return -ENOMEM;
@@ -698,7 +716,7 @@ static int mga_do_pci_dma_bootstrap(stru
 static int mga_do_dma_bootstrap(struct drm_device *dev,
 				drm_mga_dma_bootstrap_t *dma_bs)
 {
-	const int is_agp = (dma_bs->agp_mode != 0) && drm_pci_device_is_agp(dev);
+	const int is_agp = (dma_bs->agp_mode != 0) && dev->agp;
 	int err;
 	drm_mga_private_t *const dev_priv =
 	    (drm_mga_private_t *) dev->dev_private;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/mga/mga_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/mga/mga_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/mga/mga_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/mga/mga_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,8 +37,6 @@
 
 #include <drm/drm_pciids.h>
 
-static int mga_driver_device_is_agp(struct drm_device *dev);
-
 static struct pci_device_id pciidlist[] = {
 	mga_PCI_IDS
 };
@@ -66,7 +64,6 @@ static struct drm_driver driver = {
 	.lastclose = mga_driver_lastclose,
 	.set_busid = drm_pci_set_busid,
 	.dma_quiescent = mga_driver_dma_quiescent,
-	.device_is_agp = mga_driver_device_is_agp,
 	.get_vblank_counter = mga_get_vblank_counter,
 	.enable_vblank = mga_enable_vblank,
 	.disable_vblank = mga_disable_vblank,
@@ -107,37 +104,3 @@ module_exit(mga_exit);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
-
-/**
- * Determine if the device really is AGP or not.
- *
- * In addition to the usual tests performed by \c drm_device_is_agp, this
- * function detects PCI G450 cards that appear to the system exactly like
- * AGP G450 cards.
- *
- * \param dev   The device to be tested.
- *
- * \returns
- * If the device is a PCI G450, zero is returned.  Otherwise 2 is returned.
- */
-static int mga_driver_device_is_agp(struct drm_device *dev)
-{
-	const struct pci_dev *const pdev = dev->pdev;
-
-	/* There are PCI versions of the G450.  These cards have the
-	 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
-	 * bridge chip.  We detect these cards, which are not currently
-	 * supported by this driver, by looking at the device ID of the
-	 * bus the "card" is on.  If vendor is 0x3388 (Hint Corp) and the
-	 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
-	 * device.
-	 */
-
-	if ((pdev->device == 0x0525) && pdev->bus->self
-	    && (pdev->bus->self->vendor == 0x3388)
-	    && (pdev->bus->self->device == 0x0021)) {
-		return 0;
-	}
-
-	return 2;
-}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/adreno/adreno_device.c linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/adreno/adreno_device.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/adreno/adreno_device.c	2016-12-11 17:42:23.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/adreno/adreno_device.c	2017-09-27 14:40:00.000000000 -0400
@@ -25,9 +25,6 @@ bool hang_debug = false;
 MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)");
 module_param_named(hang_debug, hang_debug, bool, 0600);
 
-struct msm_gpu *a3xx_gpu_init(struct drm_device *dev);
-struct msm_gpu *a4xx_gpu_init(struct drm_device *dev);
-
 static const struct adreno_info gpulist[] = {
 	{
 		.rev   = ADRENO_REV(3, 0, 5, ANY_ID),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c	2016-12-11 17:42:21.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.c	2017-09-27 14:39:55.000000000 -0400
@@ -210,7 +210,14 @@ void adreno_submit(struct msm_gpu *gpu,
 void adreno_flush(struct msm_gpu *gpu)
 {
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
-	uint32_t wptr = get_wptr(gpu->rb);
+	uint32_t wptr;
+
+	/*
+	 * Mask wptr value that we calculate to fit in the HW range. This is
+	 * to account for the possibility that the last command fit exactly into
+	 * the ringbuffer and rb->next hasn't wrapped to zero yet
+	 */
+	wptr = get_wptr(gpu->rb) & ((gpu->rb->size / 4) - 1);
 
 	/* ensure writes to ringbuffer have hit system memory: */
 	mb();
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.h linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/adreno/adreno_gpu.h	2017-09-27 08:40:05.000000000 -0400
@@ -311,4 +311,7 @@ static inline void adreno_gpu_write(stru
 		gpu_write(&gpu->base, reg - 1, data);
 }
 
+struct msm_gpu *a3xx_gpu_init(struct drm_device *dev);
+struct msm_gpu *a4xx_gpu_init(struct drm_device *dev);
+
 #endif /* __ADRENO_GPU_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -801,6 +801,7 @@ static struct drm_driver msm_driver = {
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_export   = drm_gem_prime_export,
 	.gem_prime_import   = drm_gem_prime_import,
+	.gem_prime_res_obj  = msm_gem_prime_res_obj,
 	.gem_prime_pin      = msm_gem_prime_pin,
 	.gem_prime_unpin    = msm_gem_prime_unpin,
 	.gem_prime_get_sg_table = msm_gem_prime_get_sg_table,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_drv.h linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_drv.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_drv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_drv.h	2017-09-27 08:40:05.000000000 -0400
@@ -203,6 +203,7 @@ struct sg_table *msm_gem_prime_get_sg_ta
 void *msm_gem_prime_vmap(struct drm_gem_object *obj);
 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
+struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj);
 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 		struct dma_buf_attachment *attach, struct sg_table *sg);
 int msm_gem_prime_pin(struct drm_gem_object *obj);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_gem_prime.c linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_gem_prime.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_gem_prime.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_gem_prime.c	2017-09-27 08:40:05.000000000 -0400
@@ -70,3 +70,10 @@ void msm_gem_prime_unpin(struct drm_gem_
 	if (!obj->import_attach)
 		msm_gem_put_pages(obj);
 }
+
+struct reservation_object *msm_gem_prime_res_obj(struct drm_gem_object *obj)
+{
+	struct msm_gem_object *msm_obj = to_msm_bo(obj);
+
+	return msm_obj->resv;
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_gem_submit.c linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_gem_submit.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_gem_submit.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_gem_submit.c	2017-09-27 08:40:05.000000000 -0400
@@ -106,7 +106,8 @@ static int submit_lookup_objects(struct
 			pagefault_disable();
 		}
 
-		if (submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) {
+		if ((submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) ||
+			!(submit_bo.flags & MSM_SUBMIT_BO_FLAGS)) {
 			DRM_ERROR("invalid flags: %x\n", submit_bo.flags);
 			ret = -EINVAL;
 			goto out_unlock;
@@ -290,7 +291,7 @@ static int submit_reloc(struct msm_gem_s
 {
 	uint32_t i, last_offset = 0;
 	uint32_t *ptr;
-	int ret;
+	int ret = 0;
 
 	if (offset % 4) {
 		DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset);
@@ -317,12 +318,13 @@ static int submit_reloc(struct msm_gem_s
 
 		ret = copy_from_user(&submit_reloc, userptr, sizeof(submit_reloc));
 		if (ret)
-			return -EFAULT;
+			goto out;
 
 		if (submit_reloc.submit_offset % 4) {
 			DRM_ERROR("non-aligned reloc offset: %u\n",
 					submit_reloc.submit_offset);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto out;
 		}
 
 		/* offset in dwords: */
@@ -331,12 +333,13 @@ static int submit_reloc(struct msm_gem_s
 		if ((off >= (obj->base.size / 4)) ||
 				(off < last_offset)) {
 			DRM_ERROR("invalid offset %u at reloc %u\n", off, i);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto out;
 		}
 
 		ret = submit_bo(submit, submit_reloc.reloc_idx, NULL, &iova, &valid);
 		if (ret)
-			return ret;
+			goto out;
 
 		if (valid)
 			continue;
@@ -353,9 +356,10 @@ static int submit_reloc(struct msm_gem_s
 		last_offset = off;
 	}
 
+out:
 	msm_gem_put_vaddr_locked(&obj->base);
 
-	return 0;
+	return ret;
 }
 
 static void submit_cleanup(struct msm_gem_submit *submit)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/msm/msm_ringbuffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -23,7 +23,8 @@ struct msm_ringbuffer *msm_ringbuffer_ne
 	struct msm_ringbuffer *ring;
 	int ret;
 
-	size = ALIGN(size, 4);   /* size should be dword aligned */
+	if (WARN_ON(!is_power_of_2(size)))
+		return ERR_PTR(-EINVAL);
 
 	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
 	if (!ring) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/dispnv04/hw.c	2017-09-27 08:40:05.000000000 -0400
@@ -222,6 +222,7 @@ nouveau_hw_get_clock(struct drm_device *
 		uint32_t mpllP;
 
 		pci_read_config_dword(pci_get_bus_and_slot(0, 3), 0x6c, &mpllP);
+		mpllP = (mpllP >> 8) & 0xf;
 		if (!mpllP)
 			mpllP = 4;
 
@@ -232,7 +233,7 @@ nouveau_hw_get_clock(struct drm_device *
 		uint32_t clock;
 
 		pci_read_config_dword(pci_get_bus_and_slot(0, 5), 0x4c, &clock);
-		return clock;
+		return clock / 1000;
 	}
 
 	ret = nouveau_hw_get_pllvals(dev, plltype, &pllvals);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h	2017-09-27 08:40:05.000000000 -0400
@@ -4,6 +4,7 @@
 
 struct nvkm_alarm {
 	struct list_head head;
+	struct list_head exec;
 	u64 timestamp;
 	void (*func)(struct nvkm_alarm *);
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_bios.c	2017-09-27 08:40:05.000000000 -0400
@@ -333,6 +333,9 @@ get_fp_strap(struct drm_device *dev, str
 	if (bios->major_version < 5 && bios->data[0x48] & 0x4)
 		return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
 
+	if (drm->device.info.family >= NV_DEVICE_INFO_V0_MAXWELL)
+		return nvif_rd32(device, 0x001800) & 0x0000000f;
+	else
 	if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
 		return (nvif_rd32(device, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
 	else
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_bo.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_bo.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_bo.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_bo.c	2017-09-27 08:40:05.000000000 -0400
@@ -1209,6 +1209,7 @@ nouveau_bo_move_ntfy(struct ttm_buffer_o
 			       nvbo->page_shift != vma->vm->mmu->lpg_shift)) {
 			nvkm_vm_map(vma, new_mem->mm_node);
 		} else {
+			WARN_ON(ttm_bo_wait(bo, false, false));
 			nvkm_vm_unmap(vma);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_display.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_display.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_display.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_display.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,7 @@
  *
  */
 
+#include <acpi/video.h>
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 
@@ -358,6 +359,57 @@ static struct nouveau_drm_prop_enum_list
 	}                                                                      \
 } while(0)
 
+static void
+nouveau_display_hpd_work(struct work_struct *work)
+{
+	struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
+
+	pm_runtime_get_sync(drm->dev->dev);
+
+	drm_helper_hpd_irq_event(drm->dev);
+	/* enable polling for external displays */
+	drm_kms_helper_poll_enable(drm->dev);
+
+	pm_runtime_mark_last_busy(drm->dev->dev);
+	pm_runtime_put_sync(drm->dev->dev);
+}
+
+#ifdef CONFIG_ACPI
+
+/*
+ * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
+ * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
+ * This should be dropped once that is merged.
+ */
+#ifndef ACPI_VIDEO_NOTIFY_PROBE
+#define ACPI_VIDEO_NOTIFY_PROBE			0x81
+#endif
+
+static int
+nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
+			  void *data)
+{
+	struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
+	struct acpi_bus_event *info = data;
+
+	if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
+		if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
+			/*
+			 * This may be the only indication we receive of a
+			 * connector hotplug on a runtime suspended GPU,
+			 * schedule hpd_work to check.
+			 */
+			schedule_work(&drm->hpd_work);
+
+			/* acpi-video should not generate keypresses for this */
+			return NOTIFY_BAD;
+		}
+	}
+
+	return NOTIFY_DONE;
+}
+#endif
+
 int
 nouveau_display_init(struct drm_device *dev)
 {
@@ -370,9 +422,6 @@ nouveau_display_init(struct drm_device *
 	if (ret)
 		return ret;
 
-	/* enable polling for external displays */
-	drm_kms_helper_poll_enable(dev);
-
 	/* enable hotplug interrupts */
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		struct nouveau_connector *conn = nouveau_connector(connector);
@@ -537,6 +586,12 @@ nouveau_display_create(struct drm_device
 	}
 
 	nouveau_backlight_init(dev);
+	INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
+#ifdef CONFIG_ACPI
+	drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
+	register_acpi_notifier(&drm->acpi_nb);
+#endif
+
 	return 0;
 
 vblank_err:
@@ -552,6 +607,9 @@ nouveau_display_destroy(struct drm_devic
 {
 	struct nouveau_display *disp = nouveau_display(dev);
 
+#ifdef CONFIG_ACPI
+	unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
+#endif
 	nouveau_backlight_exit(dev);
 	nouveau_display_vblank_fini(dev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_drm.c	2017-09-27 08:40:05.000000000 -0400
@@ -483,6 +483,9 @@ nouveau_drm_load(struct drm_device *dev,
 		pm_runtime_allow(dev->dev);
 		pm_runtime_mark_last_busy(dev->dev);
 		pm_runtime_put(dev->dev);
+	} else {
+		/* enable polling for external displays */
+		drm_kms_helper_poll_enable(dev);
 	}
 	return 0;
 
@@ -761,7 +764,7 @@ nouveau_pmops_runtime_resume(struct devi
 	pci_set_master(pdev);
 
 	ret = nouveau_do_resume(drm_dev, true);
-	drm_kms_helper_poll_enable(drm_dev);
+
 	/* do magic */
 	nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
 	vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_drv.h linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_drv.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_drv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_drv.h	2017-09-27 08:40:05.000000000 -0400
@@ -37,6 +37,8 @@
  *      - implemented limited ABI16/NVIF interop
  */
 
+#include <linux/notifier.h>
+
 #include <nvif/client.h>
 #include <nvif/device.h>
 #include <nvif/ioctl.h>
@@ -161,6 +163,12 @@ struct nouveau_drm {
 	struct nvbios vbios;
 	struct nouveau_display *display;
 	struct backlight_device *backlight;
+	struct work_struct hpd_work;
+	struct work_struct fbcon_work;
+	int fbcon_new_state;
+#ifdef CONFIG_ACPI
+	struct notifier_block acpi_nb;
+#endif
 
 	/* power management */
 	struct nouveau_hwmon *hwmon;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_fbcon.c	2017-09-27 08:40:05.000000000 -0400
@@ -491,19 +491,43 @@ static const struct drm_fb_helper_funcs
 	.fb_probe = nouveau_fbcon_create,
 };
 
+static void
+nouveau_fbcon_set_suspend_work(struct work_struct *work)
+{
+	struct nouveau_drm *drm = container_of(work, typeof(*drm), fbcon_work);
+	int state = READ_ONCE(drm->fbcon_new_state);
+
+	if (state == FBINFO_STATE_RUNNING)
+		pm_runtime_get_sync(drm->dev->dev);
+
+	console_lock();
+	if (state == FBINFO_STATE_RUNNING)
+		nouveau_fbcon_accel_restore(drm->dev);
+	drm_fb_helper_set_suspend(&drm->fbcon->helper, state);
+	if (state != FBINFO_STATE_RUNNING)
+		nouveau_fbcon_accel_save_disable(drm->dev);
+	console_unlock();
+
+	if (state == FBINFO_STATE_RUNNING) {
+		pm_runtime_mark_last_busy(drm->dev->dev);
+		pm_runtime_put_sync(drm->dev->dev);
+	}
+}
+
 void
 nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	if (drm->fbcon) {
-		console_lock();
-		if (state == FBINFO_STATE_RUNNING)
-			nouveau_fbcon_accel_restore(dev);
-		drm_fb_helper_set_suspend(&drm->fbcon->helper, state);
-		if (state != FBINFO_STATE_RUNNING)
-			nouveau_fbcon_accel_save_disable(dev);
-		console_unlock();
-	}
+
+	if (!drm->fbcon)
+		return;
+
+	drm->fbcon_new_state = state;
+	/* Since runtime resume can happen as a result of a sysfs operation,
+	 * it's possible we already have the console locked. So handle fbcon
+	 * init/deinit from a seperate work thread
+	 */
+	schedule_work(&drm->fbcon_work);
 }
 
 int
@@ -524,6 +548,7 @@ nouveau_fbcon_init(struct drm_device *de
 
 	fbcon->dev = dev;
 	drm->fbcon = fbcon;
+	INIT_WORK(&drm->fbcon_work, nouveau_fbcon_set_suspend_work);
 
 	drm_fb_helper_prepare(dev, &fbcon->helper, &nouveau_fbcon_helper_funcs);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_fence.h	2017-09-27 08:40:05.000000000 -0400
@@ -100,6 +100,7 @@ struct nv84_fence_priv {
 	struct nouveau_bo *bo;
 	struct nouveau_bo *bo_gart;
 	u32 *suspend;
+	struct mutex mutex;
 };
 
 u64  nv84_fence_crtc(struct nouveau_channel *, int);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nouveau_usif.c	2017-09-27 08:40:05.000000000 -0400
@@ -313,7 +313,8 @@ usif_ioctl(struct drm_file *filp, void _
 	if (!(ret = nvif_unpack(-ENOSYS, &data, &size, argv->v0, 0, 0, true))) {
 		/* block access to objects not created via this interface */
 		owner = argv->v0.owner;
-		if (argv->v0.object == 0ULL)
+		if (argv->v0.object == 0ULL &&
+		    argv->v0.type != NVIF_IOCTL_V0_DEL)
 			argv->v0.owner = NVDRM_OBJECT_ANY; /* except client */
 		else
 			argv->v0.owner = NVDRM_OBJECT_USIF;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nv84_fence.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nv84_fence.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nv84_fence.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nv84_fence.c	2017-09-27 08:40:05.000000000 -0400
@@ -121,8 +121,10 @@ nv84_fence_context_del(struct nouveau_ch
 	}
 
 	nouveau_bo_wr32(priv->bo, chan->chid * 16 / 4, fctx->base.sequence);
+	mutex_lock(&priv->mutex);
 	nouveau_bo_vma_del(priv->bo, &fctx->vma_gart);
 	nouveau_bo_vma_del(priv->bo, &fctx->vma);
+	mutex_unlock(&priv->mutex);
 	nouveau_fence_context_del(&fctx->base);
 	chan->fence = NULL;
 	nouveau_fence_context_free(&fctx->base);
@@ -148,11 +150,13 @@ nv84_fence_context_new(struct nouveau_ch
 	fctx->base.sync32 = nv84_fence_sync32;
 	fctx->base.sequence = nv84_fence_read(chan);
 
+	mutex_lock(&priv->mutex);
 	ret = nouveau_bo_vma_add(priv->bo, cli->vm, &fctx->vma);
 	if (ret == 0) {
 		ret = nouveau_bo_vma_add(priv->bo_gart, cli->vm,
 					&fctx->vma_gart);
 	}
+	mutex_unlock(&priv->mutex);
 
 	/* map display semaphore buffers into channel's vm */
 	for (i = 0; !ret && i < chan->drm->dev->mode_config.num_crtc; i++) {
@@ -232,6 +236,8 @@ nv84_fence_create(struct nouveau_drm *dr
 	priv->base.context_base = fence_context_alloc(priv->base.contexts);
 	priv->base.uevent = true;
 
+	mutex_init(&priv->mutex);
+
 	/* Use VRAM if there is any ; otherwise fallback to system memory */
 	domain = drm->device.info.ram_size != 0 ? TTM_PL_FLAG_VRAM :
 			 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -714,7 +714,7 @@ nv4a_chipset = {
 	.i2c = nv04_i2c_new,
 	.imem = nv40_instmem_new,
 	.mc = nv44_mc_new,
-	.mmu = nv44_mmu_new,
+	.mmu = nv04_mmu_new,
 	.pci = nv40_pci_new,
 	.therm = nv40_therm_new,
 	.timer = nv41_timer_new,
@@ -1851,7 +1851,7 @@ nvf1_chipset = {
 	.fb = gk104_fb_new,
 	.fuse = gf100_fuse_new,
 	.gpio = gk104_gpio_new,
-	.i2c = gf119_i2c_new,
+	.i2c = gk104_i2c_new,
 	.ibus = gk104_ibus_new,
 	.iccsense = gf100_iccsense_new,
 	.imem = nv50_instmem_new,
@@ -1965,7 +1965,7 @@ nv117_chipset = {
 	.fb = gm107_fb_new,
 	.fuse = gm107_fuse_new,
 	.gpio = gk104_gpio_new,
-	.i2c = gf119_i2c_new,
+	.i2c = gk104_i2c_new,
 	.ibus = gk104_ibus_new,
 	.iccsense = gf100_iccsense_new,
 	.imem = nv50_instmem_new,
@@ -1999,7 +1999,7 @@ nv118_chipset = {
 	.fb = gm107_fb_new,
 	.fuse = gm107_fuse_new,
 	.gpio = gk104_gpio_new,
-	.i2c = gf119_i2c_new,
+	.i2c = gk104_i2c_new,
 	.ibus = gk104_ibus_new,
 	.iccsense = gf100_iccsense_new,
 	.imem = nv50_instmem_new,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c	2017-09-27 08:40:05.000000000 -0400
@@ -82,7 +82,7 @@ nv50_disp_chan_mthd(struct nv50_disp_cha
 
 			if (mthd->addr) {
 				snprintf(cname_, sizeof(cname_), "%s %d",
-					 mthd->name, chan->chid);
+					 mthd->name, chan->chid.user);
 				cname = cname_;
 			}
 
@@ -139,7 +139,7 @@ nv50_disp_chan_uevent_ctor(struct nvkm_o
 	if (!(ret = nvif_unvers(ret, &data, &size, args->none))) {
 		notify->size  = sizeof(struct nvif_notify_uevent_rep);
 		notify->types = 1;
-		notify->index = chan->chid;
+		notify->index = chan->chid.user;
 		return 0;
 	}
 
@@ -159,7 +159,7 @@ nv50_disp_chan_rd32(struct nvkm_object *
 	struct nv50_disp_chan *chan = nv50_disp_chan(object);
 	struct nv50_disp *disp = chan->root->disp;
 	struct nvkm_device *device = disp->base.engine.subdev.device;
-	*data = nvkm_rd32(device, 0x640000 + (chan->chid * 0x1000) + addr);
+	*data = nvkm_rd32(device, 0x640000 + (chan->chid.user * 0x1000) + addr);
 	return 0;
 }
 
@@ -169,7 +169,7 @@ nv50_disp_chan_wr32(struct nvkm_object *
 	struct nv50_disp_chan *chan = nv50_disp_chan(object);
 	struct nv50_disp *disp = chan->root->disp;
 	struct nvkm_device *device = disp->base.engine.subdev.device;
-	nvkm_wr32(device, 0x640000 + (chan->chid * 0x1000) + addr, data);
+	nvkm_wr32(device, 0x640000 + (chan->chid.user * 0x1000) + addr, data);
 	return 0;
 }
 
@@ -196,7 +196,7 @@ nv50_disp_chan_map(struct nvkm_object *o
 	struct nv50_disp *disp = chan->root->disp;
 	struct nvkm_device *device = disp->base.engine.subdev.device;
 	*addr = device->func->resource_addr(device, 0) +
-		0x640000 + (chan->chid * 0x1000);
+		0x640000 + (chan->chid.user * 0x1000);
 	*size = 0x001000;
 	return 0;
 }
@@ -243,8 +243,8 @@ nv50_disp_chan_dtor(struct nvkm_object *
 {
 	struct nv50_disp_chan *chan = nv50_disp_chan(object);
 	struct nv50_disp *disp = chan->root->disp;
-	if (chan->chid >= 0)
-		disp->chan[chan->chid] = NULL;
+	if (chan->chid.user >= 0)
+		disp->chan[chan->chid.user] = NULL;
 	return chan->func->dtor ? chan->func->dtor(chan) : chan;
 }
 
@@ -263,7 +263,7 @@ nv50_disp_chan = {
 int
 nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
 		    const struct nv50_disp_chan_mthd *mthd,
-		    struct nv50_disp_root *root, int chid, int head,
+		    struct nv50_disp_root *root, int ctrl, int user, int head,
 		    const struct nvkm_oclass *oclass,
 		    struct nv50_disp_chan *chan)
 {
@@ -273,21 +273,22 @@ nv50_disp_chan_ctor(const struct nv50_di
 	chan->func = func;
 	chan->mthd = mthd;
 	chan->root = root;
-	chan->chid = chid;
+	chan->chid.ctrl = ctrl;
+	chan->chid.user = user;
 	chan->head = head;
 
-	if (disp->chan[chan->chid]) {
-		chan->chid = -1;
+	if (disp->chan[chan->chid.user]) {
+		chan->chid.user = -1;
 		return -EBUSY;
 	}
-	disp->chan[chan->chid] = chan;
+	disp->chan[chan->chid.user] = chan;
 	return 0;
 }
 
 int
 nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
 		    const struct nv50_disp_chan_mthd *mthd,
-		    struct nv50_disp_root *root, int chid, int head,
+		    struct nv50_disp_root *root, int ctrl, int user, int head,
 		    const struct nvkm_oclass *oclass,
 		    struct nvkm_object **pobject)
 {
@@ -297,5 +298,6 @@ nv50_disp_chan_new_(const struct nv50_di
 		return -ENOMEM;
 	*pobject = &chan->object;
 
-	return nv50_disp_chan_ctor(func, mthd, root, chid, head, oclass, chan);
+	return nv50_disp_chan_ctor(func, mthd, root, ctrl, user,
+				   head, oclass, chan);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h	2017-09-27 08:40:05.000000000 -0400
@@ -7,7 +7,11 @@ struct nv50_disp_chan {
 	const struct nv50_disp_chan_func *func;
 	const struct nv50_disp_chan_mthd *mthd;
 	struct nv50_disp_root *root;
-	int chid;
+
+	struct {
+		int ctrl;
+		int user;
+	} chid;
 	int head;
 
 	struct nvkm_object object;
@@ -25,11 +29,11 @@ struct nv50_disp_chan_func {
 
 int nv50_disp_chan_ctor(const struct nv50_disp_chan_func *,
 			const struct nv50_disp_chan_mthd *,
-			struct nv50_disp_root *, int chid, int head,
+			struct nv50_disp_root *, int ctrl, int user, int head,
 			const struct nvkm_oclass *, struct nv50_disp_chan *);
 int nv50_disp_chan_new_(const struct nv50_disp_chan_func *,
 			const struct nv50_disp_chan_mthd *,
-			struct nv50_disp_root *, int chid, int head,
+			struct nv50_disp_root *, int ctrl, int user, int head,
 			const struct nvkm_oclass *, struct nvkm_object **);
 
 extern const struct nv50_disp_chan_func nv50_disp_pioc_func;
@@ -90,13 +94,16 @@ extern const struct nv50_disp_chan_mthd
 struct nv50_disp_pioc_oclass {
 	int (*ctor)(const struct nv50_disp_chan_func *,
 		    const struct nv50_disp_chan_mthd *,
-		    struct nv50_disp_root *, int chid,
+		    struct nv50_disp_root *, int ctrl, int user,
 		    const struct nvkm_oclass *, void *data, u32 size,
 		    struct nvkm_object **);
 	struct nvkm_sclass base;
 	const struct nv50_disp_chan_func *func;
 	const struct nv50_disp_chan_mthd *mthd;
-	int chid;
+	struct {
+		int ctrl;
+		int user;
+	} chid;
 };
 
 extern const struct nv50_disp_pioc_oclass nv50_disp_oimm_oclass;
@@ -114,15 +121,17 @@ extern const struct nv50_disp_pioc_oclas
 extern const struct nv50_disp_pioc_oclass gk104_disp_oimm_oclass;
 extern const struct nv50_disp_pioc_oclass gk104_disp_curs_oclass;
 
+extern const struct nv50_disp_pioc_oclass gp102_disp_oimm_oclass;
+extern const struct nv50_disp_pioc_oclass gp102_disp_curs_oclass;
 
 int nv50_disp_curs_new(const struct nv50_disp_chan_func *,
 		       const struct nv50_disp_chan_mthd *,
-		       struct nv50_disp_root *, int chid,
+		       struct nv50_disp_root *, int ctrl, int user,
 		       const struct nvkm_oclass *, void *data, u32 size,
 		       struct nvkm_object **);
 int nv50_disp_oimm_new(const struct nv50_disp_chan_func *,
 		       const struct nv50_disp_chan_mthd *,
-		       struct nv50_disp_root *, int chid,
+		       struct nv50_disp_root *, int ctrl, int user,
 		       const struct nvkm_oclass *, void *data, u32 size,
 		       struct nvkm_object **);
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ g84_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 7,
+	.chid = { 7, 7 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ gf119_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 13,
+	.chid = { 13, 13 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ gk104_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 13,
+	.chid = { 13, 13 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgp102.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgp102.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgp102.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgp102.c	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2016 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "channv50.h"
+#include "rootnv50.h"
+
+#include <nvif/class.h>
+
+const struct nv50_disp_pioc_oclass
+gp102_disp_curs_oclass = {
+	.base.oclass = GK104_DISP_CURSOR,
+	.base.minver = 0,
+	.base.maxver = 0,
+	.ctor = nv50_disp_curs_new,
+	.func = &gf119_disp_pioc_func,
+	.chid = { 13, 17 },
+};
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ gt215_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 7,
+	.chid = { 7, 7 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,7 +33,7 @@
 int
 nv50_disp_curs_new(const struct nv50_disp_chan_func *func,
 		   const struct nv50_disp_chan_mthd *mthd,
-		   struct nv50_disp_root *root, int chid,
+		   struct nv50_disp_root *root, int ctrl, int user,
 		   const struct nvkm_oclass *oclass, void *data, u32 size,
 		   struct nvkm_object **pobject)
 {
@@ -54,7 +54,7 @@ nv50_disp_curs_new(const struct nv50_dis
 	} else
 		return ret;
 
-	return nv50_disp_chan_new_(func, mthd, root, chid + head,
+	return nv50_disp_chan_new_(func, mthd, root, ctrl + head, user + head,
 				   head, oclass, pobject);
 }
 
@@ -65,5 +65,5 @@ nv50_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 7,
+	.chid = { 7, 7 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgf119.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,8 +32,8 @@ gf119_disp_dmac_bind(struct nv50_disp_dm
 		     struct nvkm_object *object, u32 handle)
 {
 	return nvkm_ramht_insert(chan->base.root->ramht, object,
-				 chan->base.chid, -9, handle,
-				 chan->base.chid << 27 | 0x00000001);
+				 chan->base.chid.user, -9, handle,
+				 chan->base.chid.user << 27 | 0x00000001);
 }
 
 void
@@ -42,22 +42,23 @@ gf119_disp_dmac_fini(struct nv50_disp_dm
 	struct nv50_disp *disp = chan->base.root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->base.chid;
+	int ctrl = chan->base.chid.ctrl;
+	int user = chan->base.chid.user;
 
 	/* deactivate channel */
-	nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00001010, 0x00001000);
-	nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000003, 0x00000000);
+	nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00001010, 0x00001000);
+	nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000003, 0x00000000);
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x001e0000))
+		if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x001e0000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d fini: %08x\n", chid,
-			   nvkm_rd32(device, 0x610490 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d fini: %08x\n", user,
+			   nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
 	}
 
 	/* disable error reporting and completion notification */
-	nvkm_mask(device, 0x610090, 0x00000001 << chid, 0x00000000);
-	nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000000);
+	nvkm_mask(device, 0x610090, 0x00000001 << user, 0x00000000);
+	nvkm_mask(device, 0x6100a0, 0x00000001 << user, 0x00000000);
 }
 
 static int
@@ -66,26 +67,27 @@ gf119_disp_dmac_init(struct nv50_disp_dm
 	struct nv50_disp *disp = chan->base.root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->base.chid;
+	int ctrl = chan->base.chid.ctrl;
+	int user = chan->base.chid.user;
 
 	/* enable error reporting */
-	nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000001 << chid);
+	nvkm_mask(device, 0x6100a0, 0x00000001 << user, 0x00000001 << user);
 
 	/* initialise channel for dma command submission */
-	nvkm_wr32(device, 0x610494 + (chid * 0x0010), chan->push);
-	nvkm_wr32(device, 0x610498 + (chid * 0x0010), 0x00010000);
-	nvkm_wr32(device, 0x61049c + (chid * 0x0010), 0x00000001);
-	nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000010, 0x00000010);
-	nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
-	nvkm_wr32(device, 0x610490 + (chid * 0x0010), 0x00000013);
+	nvkm_wr32(device, 0x610494 + (ctrl * 0x0010), chan->push);
+	nvkm_wr32(device, 0x610498 + (ctrl * 0x0010), 0x00010000);
+	nvkm_wr32(device, 0x61049c + (ctrl * 0x0010), 0x00000001);
+	nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000010, 0x00000010);
+	nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), 0x00000000);
+	nvkm_wr32(device, 0x610490 + (ctrl * 0x0010), 0x00000013);
 
 	/* wait for it to go inactive */
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x80000000))
+		if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x80000000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d init: %08x\n", chid,
-			   nvkm_rd32(device, 0x610490 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d init: %08x\n", user,
+			   nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
 		return -EBUSY;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgp104.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgp104.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgp104.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacgp104.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,26 +32,27 @@ gp104_disp_dmac_init(struct nv50_disp_dm
 	struct nv50_disp *disp = chan->base.root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->base.chid;
+	int ctrl = chan->base.chid.ctrl;
+	int user = chan->base.chid.user;
 
 	/* enable error reporting */
-	nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000001 << chid);
+	nvkm_mask(device, 0x6100a0, 0x00000001 << user, 0x00000001 << user);
 
 	/* initialise channel for dma command submission */
-	nvkm_wr32(device, 0x611494 + (chid * 0x0010), chan->push);
-	nvkm_wr32(device, 0x611498 + (chid * 0x0010), 0x00010000);
-	nvkm_wr32(device, 0x61149c + (chid * 0x0010), 0x00000001);
-	nvkm_mask(device, 0x610490 + (chid * 0x0010), 0x00000010, 0x00000010);
-	nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
-	nvkm_wr32(device, 0x610490 + (chid * 0x0010), 0x00000013);
+	nvkm_wr32(device, 0x611494 + (ctrl * 0x0010), chan->push);
+	nvkm_wr32(device, 0x611498 + (ctrl * 0x0010), 0x00010000);
+	nvkm_wr32(device, 0x61149c + (ctrl * 0x0010), 0x00000001);
+	nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000010, 0x00000010);
+	nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), 0x00000000);
+	nvkm_wr32(device, 0x610490 + (ctrl * 0x0010), 0x00000013);
 
 	/* wait for it to go inactive */
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x80000000))
+		if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x80000000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d init: %08x\n", chid,
-			   nvkm_rd32(device, 0x610490 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d init: %08x\n", user,
+			   nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
 		return -EBUSY;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,7 +149,7 @@ nv50_disp_dmac_new_(const struct nv50_di
 	chan->func = func;
 
 	ret = nv50_disp_chan_ctor(&nv50_disp_dmac_func_, mthd, root,
-				  chid, head, oclass, &chan->base);
+				  chid, chid, head, oclass, &chan->base);
 	if (ret)
 		return ret;
 
@@ -179,9 +179,9 @@ nv50_disp_dmac_bind(struct nv50_disp_dma
 		    struct nvkm_object *object, u32 handle)
 {
 	return nvkm_ramht_insert(chan->base.root->ramht, object,
-				 chan->base.chid, -10, handle,
-				 chan->base.chid << 28 |
-				 chan->base.chid);
+				 chan->base.chid.user, -10, handle,
+				 chan->base.chid.user << 28 |
+				 chan->base.chid.user);
 }
 
 static void
@@ -190,21 +190,22 @@ nv50_disp_dmac_fini(struct nv50_disp_dma
 	struct nv50_disp *disp = chan->base.root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->base.chid;
+	int ctrl = chan->base.chid.ctrl;
+	int user = chan->base.chid.user;
 
 	/* deactivate channel */
-	nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00001010, 0x00001000);
-	nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00000003, 0x00000000);
+	nvkm_mask(device, 0x610200 + (ctrl * 0x0010), 0x00001010, 0x00001000);
+	nvkm_mask(device, 0x610200 + (ctrl * 0x0010), 0x00000003, 0x00000000);
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x001e0000))
+		if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x001e0000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d fini timeout, %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d fini timeout, %08x\n", user,
+			   nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
 	}
 
 	/* disable error reporting and completion notifications */
-	nvkm_mask(device, 0x610028, 0x00010001 << chid, 0x00000000 << chid);
+	nvkm_mask(device, 0x610028, 0x00010001 << user, 0x00000000 << user);
 }
 
 static int
@@ -213,26 +214,27 @@ nv50_disp_dmac_init(struct nv50_disp_dma
 	struct nv50_disp *disp = chan->base.root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->base.chid;
+	int ctrl = chan->base.chid.ctrl;
+	int user = chan->base.chid.user;
 
 	/* enable error reporting */
-	nvkm_mask(device, 0x610028, 0x00010000 << chid, 0x00010000 << chid);
+	nvkm_mask(device, 0x610028, 0x00010000 << user, 0x00010000 << user);
 
 	/* initialise channel for dma command submission */
-	nvkm_wr32(device, 0x610204 + (chid * 0x0010), chan->push);
-	nvkm_wr32(device, 0x610208 + (chid * 0x0010), 0x00010000);
-	nvkm_wr32(device, 0x61020c + (chid * 0x0010), chid);
-	nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00000010, 0x00000010);
-	nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
-	nvkm_wr32(device, 0x610200 + (chid * 0x0010), 0x00000013);
+	nvkm_wr32(device, 0x610204 + (ctrl * 0x0010), chan->push);
+	nvkm_wr32(device, 0x610208 + (ctrl * 0x0010), 0x00010000);
+	nvkm_wr32(device, 0x61020c + (ctrl * 0x0010), ctrl);
+	nvkm_mask(device, 0x610200 + (ctrl * 0x0010), 0x00000010, 0x00000010);
+	nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), 0x00000000);
+	nvkm_wr32(device, 0x610200 + (ctrl * 0x0010), 0x00000013);
 
 	/* wait for it to go inactive */
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x80000000))
+		if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x80000000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d init timeout, %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d init timeout, %08x\n", user,
+			   nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
 		return -EBUSY;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdagt215.c	2017-09-27 08:40:05.000000000 -0400
@@ -59,7 +59,7 @@ gt215_hda_eld(NV50_DISP_MTHD_V1)
 			);
 		}
 		for (i = 0; i < size; i++)
-			nvkm_wr32(device, 0x61c440 + soff, (i << 8) | args->v0.data[0]);
+			nvkm_wr32(device, 0x61c440 + soff, (i << 8) | args->v0.data[i]);
 		for (; i < 0x60; i++)
 			nvkm_wr32(device, 0x61c440 + soff, (i << 8));
 		nvkm_mask(device, 0x61c448 + soff, 0x80000003, 0x80000003);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/Kbuild linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/Kbuild
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/Kbuild	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/Kbuild	2017-09-27 08:40:05.000000000 -0400
@@ -95,9 +95,11 @@ nvkm-y += nvkm/engine/disp/cursg84.o
 nvkm-y += nvkm/engine/disp/cursgt215.o
 nvkm-y += nvkm/engine/disp/cursgf119.o
 nvkm-y += nvkm/engine/disp/cursgk104.o
+nvkm-y += nvkm/engine/disp/cursgp102.o
 
 nvkm-y += nvkm/engine/disp/oimmnv50.o
 nvkm-y += nvkm/engine/disp/oimmg84.o
 nvkm-y += nvkm/engine/disp/oimmgt215.o
 nvkm-y += nvkm/engine/disp/oimmgf119.o
 nvkm-y += nvkm/engine/disp/oimmgk104.o
+nvkm-y += nvkm/engine/disp/oimmgp102.o
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c	2017-09-27 08:40:05.000000000 -0400
@@ -433,8 +433,6 @@ nv50_disp_dptmds_war(struct nvkm_device
 	case 0x94:
 	case 0x96:
 	case 0x98:
-	case 0xaa:
-	case 0xac:
 		return true;
 	default:
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h	2017-09-27 08:40:05.000000000 -0400
@@ -27,7 +27,7 @@ struct nv50_disp {
 		u8 type[3];
 	} pior;
 
-	struct nv50_disp_chan *chan[17];
+	struct nv50_disp_chan *chan[21];
 };
 
 int nv50_disp_root_scanoutpos(NV50_DISP_MTHD_V0);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ g84_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 5,
+	.chid = { 5, 5 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ gf119_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 9,
+	.chid = { 9, 9 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ gk104_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 9,
+	.chid = { 9, 9 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgp102.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgp102.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgp102.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgp102.c	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2016 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include "channv50.h"
+#include "rootnv50.h"
+
+#include <nvif/class.h>
+
+const struct nv50_disp_pioc_oclass
+gp102_disp_oimm_oclass = {
+	.base.oclass = GK104_DISP_OVERLAY,
+	.base.minver = 0,
+	.base.maxver = 0,
+	.ctor = nv50_disp_oimm_new,
+	.func = &gf119_disp_pioc_func,
+	.chid = { 9, 13 },
+};
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,5 +33,5 @@ gt215_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 5,
+	.chid = { 5, 5 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c	2017-09-27 08:40:05.000000000 -0400
@@ -33,7 +33,7 @@
 int
 nv50_disp_oimm_new(const struct nv50_disp_chan_func *func,
 		   const struct nv50_disp_chan_mthd *mthd,
-		   struct nv50_disp_root *root, int chid,
+		   struct nv50_disp_root *root, int ctrl, int user,
 		   const struct nvkm_oclass *oclass, void *data, u32 size,
 		   struct nvkm_object **pobject)
 {
@@ -54,7 +54,7 @@ nv50_disp_oimm_new(const struct nv50_dis
 	} else
 		return ret;
 
-	return nv50_disp_chan_new_(func, mthd, root, chid + head,
+	return nv50_disp_chan_new_(func, mthd, root, ctrl + head, user + head,
 				   head, oclass, pobject);
 }
 
@@ -65,5 +65,5 @@ nv50_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 5,
+	.chid = { 5, 5 },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocgf119.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocgf119.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocgf119.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocgf119.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,20 +32,21 @@ gf119_disp_pioc_fini(struct nv50_disp_ch
 	struct nv50_disp *disp = chan->root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->chid;
+	int ctrl = chan->chid.ctrl;
+	int user = chan->chid.user;
 
-	nvkm_mask(device, 0x610490 + (chid * 0x10), 0x00000001, 0x00000000);
+	nvkm_mask(device, 0x610490 + (ctrl * 0x10), 0x00000001, 0x00000000);
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610490 + (chid * 0x10)) & 0x00030000))
+		if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x00030000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d fini: %08x\n", chid,
-			   nvkm_rd32(device, 0x610490 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d fini: %08x\n", user,
+			   nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
 	}
 
 	/* disable error reporting and completion notification */
-	nvkm_mask(device, 0x610090, 0x00000001 << chid, 0x00000000);
-	nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000000);
+	nvkm_mask(device, 0x610090, 0x00000001 << user, 0x00000000);
+	nvkm_mask(device, 0x6100a0, 0x00000001 << user, 0x00000000);
 }
 
 static int
@@ -54,20 +55,21 @@ gf119_disp_pioc_init(struct nv50_disp_ch
 	struct nv50_disp *disp = chan->root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->chid;
+	int ctrl = chan->chid.ctrl;
+	int user = chan->chid.user;
 
 	/* enable error reporting */
-	nvkm_mask(device, 0x6100a0, 0x00000001 << chid, 0x00000001 << chid);
+	nvkm_mask(device, 0x6100a0, 0x00000001 << user, 0x00000001 << user);
 
 	/* activate channel */
-	nvkm_wr32(device, 0x610490 + (chid * 0x10), 0x00000001);
+	nvkm_wr32(device, 0x610490 + (ctrl * 0x10), 0x00000001);
 	if (nvkm_msec(device, 2000,
-		u32 tmp = nvkm_rd32(device, 0x610490 + (chid * 0x10));
+		u32 tmp = nvkm_rd32(device, 0x610490 + (ctrl * 0x10));
 		if ((tmp & 0x00030000) == 0x00010000)
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d init: %08x\n", chid,
-			   nvkm_rd32(device, 0x610490 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d init: %08x\n", user,
+			   nvkm_rd32(device, 0x610490 + (ctrl * 0x10)));
 		return -EBUSY;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocnv50.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocnv50.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocnv50.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/piocnv50.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,15 +32,16 @@ nv50_disp_pioc_fini(struct nv50_disp_cha
 	struct nv50_disp *disp = chan->root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->chid;
+	int ctrl = chan->chid.ctrl;
+	int user = chan->chid.user;
 
-	nvkm_mask(device, 0x610200 + (chid * 0x10), 0x00000001, 0x00000000);
+	nvkm_mask(device, 0x610200 + (ctrl * 0x10), 0x00000001, 0x00000000);
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x00030000))
+		if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d timeout: %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d timeout: %08x\n", user,
+			   nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
 	}
 }
 
@@ -50,26 +51,27 @@ nv50_disp_pioc_init(struct nv50_disp_cha
 	struct nv50_disp *disp = chan->root->disp;
 	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	int chid = chan->chid;
+	int ctrl = chan->chid.ctrl;
+	int user = chan->chid.user;
 
-	nvkm_wr32(device, 0x610200 + (chid * 0x10), 0x00002000);
+	nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00002000);
 	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x00030000))
+		if (!(nvkm_rd32(device, 0x610200 + (ctrl * 0x10)) & 0x00030000))
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d timeout0: %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d timeout0: %08x\n", user,
+			   nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
 		return -EBUSY;
 	}
 
-	nvkm_wr32(device, 0x610200 + (chid * 0x10), 0x00000001);
+	nvkm_wr32(device, 0x610200 + (ctrl * 0x10), 0x00000001);
 	if (nvkm_msec(device, 2000,
-		u32 tmp = nvkm_rd32(device, 0x610200 + (chid * 0x10));
+		u32 tmp = nvkm_rd32(device, 0x610200 + (ctrl * 0x10));
 		if ((tmp & 0x00030000) == 0x00010000)
 			break;
 	) < 0) {
-		nvkm_error(subdev, "ch %d timeout1: %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
+		nvkm_error(subdev, "ch %d timeout1: %08x\n", user,
+			   nvkm_rd32(device, 0x610200 + (ctrl * 0x10)));
 		return -EBUSY;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgp104.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgp104.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgp104.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootgp104.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,8 +36,8 @@ gp104_disp_root = {
 		&gp104_disp_ovly_oclass,
 	},
 	.pioc = {
-		&gk104_disp_oimm_oclass,
-		&gk104_disp_curs_oclass,
+		&gp102_disp_oimm_oclass,
+		&gp102_disp_curs_oclass,
 	},
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c	2017-09-27 08:40:05.000000000 -0400
@@ -207,8 +207,8 @@ nv50_disp_root_pioc_new_(const struct nv
 {
 	const struct nv50_disp_pioc_oclass *sclass = oclass->priv;
 	struct nv50_disp_root *root = nv50_disp_root(oclass->parent);
-	return sclass->ctor(sclass->func, sclass->mthd, root, sclass->chid,
-			    oclass, data, size, pobject);
+	return sclass->ctor(sclass->func, sclass->mthd, root, sclass->chid.ctrl,
+			    sclass->chid.user, oclass, data, size, pobject);
 }
 
 static int
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogf100.c	2017-09-27 08:40:05.000000000 -0400
@@ -60,6 +60,7 @@ gf100_fifo_gpfifo_engine_fini(struct nvk
 	struct nvkm_gpuobj *inst = chan->base.inst;
 	int ret = 0;
 
+	mutex_lock(&subdev->mutex);
 	nvkm_wr32(device, 0x002634, chan->base.chid);
 	if (nvkm_msec(device, 2000,
 		if (nvkm_rd32(device, 0x002634) == chan->base.chid)
@@ -67,10 +68,12 @@ gf100_fifo_gpfifo_engine_fini(struct nvk
 	) < 0) {
 		nvkm_error(subdev, "channel %d [%s] kick timeout\n",
 			   chan->base.chid, chan->base.object.client->name);
-		ret = -EBUSY;
-		if (suspend)
-			return ret;
+		ret = -ETIMEDOUT;
 	}
+	mutex_unlock(&subdev->mutex);
+
+	if (ret && suspend)
+		return ret;
 
 	if (offset) {
 		nvkm_kmap(inst);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gpfifogk104.c	2017-09-27 08:40:05.000000000 -0400
@@ -40,7 +40,9 @@ gk104_fifo_gpfifo_kick(struct gk104_fifo
 	struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
 	struct nvkm_client *client = chan->base.object.client;
+	int ret = 0;
 
+	mutex_lock(&subdev->mutex);
 	nvkm_wr32(device, 0x002634, chan->base.chid);
 	if (nvkm_msec(device, 2000,
 		if (!(nvkm_rd32(device, 0x002634) & 0x00100000))
@@ -48,10 +50,10 @@ gk104_fifo_gpfifo_kick(struct gk104_fifo
 	) < 0) {
 		nvkm_error(subdev, "channel %d [%s] kick timeout\n",
 			   chan->base.chid, client->name);
-		return -EBUSY;
+		ret = -ETIMEDOUT;
 	}
-
-	return 0;
+	mutex_unlock(&subdev->mutex);
+	return ret;
 }
 
 static u32
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c	2017-09-27 08:40:05.000000000 -0400
@@ -1756,6 +1756,50 @@ gf100_gr_ = {
 };
 
 int
+gf100_gr_ctor_fw_legacy(struct gf100_gr *gr, const char *fwname,
+			struct gf100_gr_fuc *fuc, int ret)
+{
+	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+	const struct firmware *fw;
+	char f[32];
+
+	/* see if this firmware has a legacy path */
+	if (!strcmp(fwname, "fecs_inst"))
+		fwname = "fuc409c";
+	else if (!strcmp(fwname, "fecs_data"))
+		fwname = "fuc409d";
+	else if (!strcmp(fwname, "gpccs_inst"))
+		fwname = "fuc41ac";
+	else if (!strcmp(fwname, "gpccs_data"))
+		fwname = "fuc41ad";
+	else {
+		/* nope, let's just return the error we got */
+		nvkm_error(subdev, "failed to load %s\n", fwname);
+		return ret;
+	}
+
+	/* yes, try to load from the legacy path */
+	nvkm_debug(subdev, "%s: falling back to legacy path\n", fwname);
+
+	snprintf(f, sizeof(f), "nouveau/nv%02x_%s", device->chipset, fwname);
+	ret = request_firmware(&fw, f, device->dev);
+	if (ret) {
+		snprintf(f, sizeof(f), "nouveau/%s", fwname);
+		ret = request_firmware(&fw, f, device->dev);
+		if (ret) {
+			nvkm_error(subdev, "failed to load %s\n", fwname);
+			return ret;
+		}
+	}
+
+	fuc->size = fw->size;
+	fuc->data = kmemdup(fw->data, fuc->size, GFP_KERNEL);
+	release_firmware(fw);
+	return (fuc->data != NULL) ? 0 : -ENOMEM;
+}
+
+int
 gf100_gr_ctor_fw(struct gf100_gr *gr, const char *fwname,
 		 struct gf100_gr_fuc *fuc)
 {
@@ -1765,10 +1809,8 @@ gf100_gr_ctor_fw(struct gf100_gr *gr, co
 	int ret;
 
 	ret = nvkm_firmware_get(device, fwname, &fw);
-	if (ret) {
-		nvkm_error(subdev, "failed to load %s\n", fwname);
-		return ret;
-	}
+	if (ret)
+		return gf100_gr_ctor_fw_legacy(gr, fwname, fuc, ret);
 
 	fuc->size = fw->size;
 	fuc->data = kmemdup(fw->data, fuc->size, GFP_KERNEL);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c	2017-09-27 08:40:05.000000000 -0400
@@ -198,7 +198,7 @@ nv31_mpeg_intr(struct nvkm_engine *engin
 		}
 
 		if (type == 0x00000010) {
-			if (!nv31_mpeg_mthd(mpeg, mthd, data))
+			if (nv31_mpeg_mthd(mpeg, mthd, data))
 				show &= ~0x01000000;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c	2017-09-27 08:40:05.000000000 -0400
@@ -172,7 +172,7 @@ nv44_mpeg_intr(struct nvkm_engine *engin
 		}
 
 		if (type == 0x00000010) {
-			if (!nv44_mpeg_mthd(subdev->device, mthd, data))
+			if (nv44_mpeg_mthd(subdev->device, mthd, data))
 				show &= ~0x01000000;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c	2017-09-27 08:40:05.000000000 -0400
@@ -129,7 +129,7 @@ gf100_bar_init(struct nvkm_bar *base)
 
 	if (bar->bar[0].mem) {
 		addr = nvkm_memory_addr(bar->bar[0].mem) >> 12;
-		nvkm_wr32(device, 0x001714, 0xc0000000 | addr);
+		nvkm_wr32(device, 0x001714, 0x80000000 | addr);
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h	2017-09-27 08:40:05.000000000 -0400
@@ -12,6 +12,7 @@ struct nvbios_source {
 	bool rw;
 	bool ignore_checksum;
 	bool no_pcir;
+	bool require_checksum;
 };
 
 int nvbios_extend(struct nvkm_bios *, u32 length);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowacpi.c	2017-09-27 08:40:05.000000000 -0400
@@ -99,6 +99,7 @@ nvbios_acpi_fast = {
 	.init = acpi_init,
 	.read = acpi_read_fast,
 	.rw = false,
+	.require_checksum = true,
 };
 
 const struct nvbios_source
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c	2017-09-27 08:40:05.000000000 -0400
@@ -86,9 +86,12 @@ shadow_image(struct nvkm_bios *bios, int
 		    nvbios_checksum(&bios->data[image.base], image.size)) {
 			nvkm_debug(subdev, "%08x: checksum failed\n",
 				   image.base);
-			if (mthd->func->rw)
+			if (!mthd->func->require_checksum) {
+				if (mthd->func->rw)
+					score += 1;
 				score += 1;
-			score += 1;
+			} else
+				return 0;
 		} else {
 			score += 3;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,8 +47,10 @@ nvkm_ltc_tags_clear(struct nvkm_ltc *ltc
 
 	BUG_ON((first > limit) || (limit >= ltc->num_tags));
 
+	mutex_lock(&ltc->subdev.mutex);
 	ltc->func->cbc_clear(ltc, first, limit);
 	ltc->func->cbc_wait(ltc);
+	mutex_unlock(&ltc->subdev.mutex);
 }
 
 int
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -192,6 +192,10 @@ nvkm_pci_new_(const struct nvkm_pci_func
 		}
 	}
 
+#ifdef __BIG_ENDIAN
+	pci->msi = false;
+#endif
+
 	pci->msi = nvkm_boolopt(device->cfgopt, "NvMSI", pci->msi);
 	if (pci->msi && func->msi_rearm) {
 		pci->msi = pci_enable_msi(pci->pdev) == 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,7 +130,7 @@ nvkm_therm_update(struct nvkm_therm *the
 		poll = false;
 	}
 
-	if (list_empty(&therm->alarm.head) && poll)
+	if (poll)
 		nvkm_timer_alarm(tmr, 1000000000ULL, &therm->alarm);
 	spin_unlock_irqrestore(&therm->lock, flags);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fan.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,7 +83,7 @@ nvkm_fan_update(struct nvkm_fan *fan, bo
 	spin_unlock_irqrestore(&fan->lock, flags);
 
 	/* schedule next fan update, if not at target speed already */
-	if (list_empty(&fan->alarm.head) && target != duty) {
+	if (target != duty) {
 		u16 bump_period = fan->bios.bump_period;
 		u16 slow_down_period = fan->bios.slow_down_period;
 		u64 delay;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/fantog.c	2017-09-27 08:40:05.000000000 -0400
@@ -53,7 +53,7 @@ nvkm_fantog_update(struct nvkm_fantog *f
 	duty = !nvkm_gpio_get(gpio, 0, DCB_GPIO_FAN, 0xff);
 	nvkm_gpio_set(gpio, 0, DCB_GPIO_FAN, 0xff, duty);
 
-	if (list_empty(&fan->alarm.head) && percent != (duty * 100)) {
+	if (percent != (duty * 100)) {
 		u64 next_change = (percent * fan->period_us) / 100;
 		if (!duty)
 			next_change = fan->period_us - next_change;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/therm/temp.c	2017-09-27 08:40:05.000000000 -0400
@@ -185,7 +185,7 @@ alarm_timer_callback(struct nvkm_alarm *
 	spin_unlock_irqrestore(&therm->sensor.alarm_program_lock, flags);
 
 	/* schedule the next poll in one second */
-	if (therm->func->temp_get(therm) >= 0 && list_empty(&alarm->head))
+	if (therm->func->temp_get(therm) >= 0)
 		nvkm_timer_alarm(tmr, 1000000000ULL, alarm);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,25 +36,32 @@ nvkm_timer_alarm_trigger(struct nvkm_tim
 	unsigned long flags;
 	LIST_HEAD(exec);
 
-	/* move any due alarms off the pending list */
+	/* Process pending alarms. */
 	spin_lock_irqsave(&tmr->lock, flags);
 	list_for_each_entry_safe(alarm, atemp, &tmr->alarms, head) {
-		if (alarm->timestamp <= nvkm_timer_read(tmr))
-			list_move_tail(&alarm->head, &exec);
+		/* Have we hit the earliest alarm that hasn't gone off? */
+		if (alarm->timestamp > nvkm_timer_read(tmr)) {
+			/* Schedule it.  If we didn't race, we're done. */
+			tmr->func->alarm_init(tmr, alarm->timestamp);
+			if (alarm->timestamp > nvkm_timer_read(tmr))
+				break;
+		}
+
+		/* Move to completed list.  We'll drop the lock before
+		 * executing the callback so it can reschedule itself.
+		 */
+		list_del_init(&alarm->head);
+		list_add(&alarm->exec, &exec);
 	}
 
-	/* reschedule interrupt for next alarm time */
-	if (!list_empty(&tmr->alarms)) {
-		alarm = list_first_entry(&tmr->alarms, typeof(*alarm), head);
-		tmr->func->alarm_init(tmr, alarm->timestamp);
-	} else {
+	/* Shut down interrupt if no more pending alarms. */
+	if (list_empty(&tmr->alarms))
 		tmr->func->alarm_fini(tmr);
-	}
 	spin_unlock_irqrestore(&tmr->lock, flags);
 
-	/* execute any pending alarm handlers */
-	list_for_each_entry_safe(alarm, atemp, &exec, head) {
-		list_del_init(&alarm->head);
+	/* Execute completed callbacks. */
+	list_for_each_entry_safe(alarm, atemp, &exec, exec) {
+		list_del(&alarm->exec);
 		alarm->func(alarm);
 	}
 }
@@ -65,24 +72,37 @@ nvkm_timer_alarm(struct nvkm_timer *tmr,
 	struct nvkm_alarm *list;
 	unsigned long flags;
 
-	alarm->timestamp = nvkm_timer_read(tmr) + nsec;
-
-	/* append new alarm to list, in soonest-alarm-first order */
+	/* Remove alarm from pending list.
+	 *
+	 * This both protects against the corruption of the list,
+	 * and implements alarm rescheduling/cancellation.
+	 */
 	spin_lock_irqsave(&tmr->lock, flags);
-	if (!nsec) {
-		if (!list_empty(&alarm->head))
-			list_del(&alarm->head);
-	} else {
+	list_del_init(&alarm->head);
+
+	if (nsec) {
+		/* Insert into pending list, ordered earliest to latest. */
+		alarm->timestamp = nvkm_timer_read(tmr) + nsec;
 		list_for_each_entry(list, &tmr->alarms, head) {
 			if (list->timestamp > alarm->timestamp)
 				break;
 		}
+
 		list_add_tail(&alarm->head, &list->head);
+
+		/* Update HW if this is now the earliest alarm. */
+		list = list_first_entry(&tmr->alarms, typeof(*list), head);
+		if (list == alarm) {
+			tmr->func->alarm_init(tmr, alarm->timestamp);
+			/* This shouldn't happen if callers aren't stupid.
+			 *
+			 * Worst case scenario is that it'll take roughly
+			 * 4 seconds for the next alarm to trigger.
+			 */
+			WARN_ON(alarm->timestamp <= nvkm_timer_read(tmr));
+		}
 	}
 	spin_unlock_irqrestore(&tmr->lock, flags);
-
-	/* process pending alarms */
-	nvkm_timer_alarm_trigger(tmr);
 }
 
 void
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/nouveau/nvkm/subdev/timer/nv04.c	2017-09-27 08:40:05.000000000 -0400
@@ -76,8 +76,8 @@ nv04_timer_intr(struct nvkm_timer *tmr)
 	u32 stat = nvkm_rd32(device, NV04_PTIMER_INTR_0);
 
 	if (stat & 0x00000001) {
-		nvkm_timer_alarm_trigger(tmr);
 		nvkm_wr32(device, NV04_PTIMER_INTR_0, 0x00000001);
+		nvkm_timer_alarm_trigger(tmr);
 		stat &= ~0x00000001;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/panel/panel-simple.c linux-libre-4.9.52-gnu/drivers/gpu/drm/panel/panel-simple.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/panel/panel-simple.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/panel/panel-simple.c	2017-09-27 08:40:05.000000000 -0400
@@ -120,7 +120,7 @@ static int panel_simple_get_fixed_modes(
 
 		mode->type |= DRM_MODE_TYPE_DRIVER;
 
-		if (panel->desc->num_modes == 1)
+		if (panel->desc->num_timings == 1)
 			mode->type |= DRM_MODE_TYPE_PREFERRED;
 
 		drm_mode_probed_add(connector, mode);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/atombios_encoders.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/atombios_encoders.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/atombios_encoders.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/atombios_encoders.c	2017-09-27 08:40:05.000000000 -0400
@@ -30,6 +30,7 @@
 #include "radeon_audio.h"
 #include "atom.h"
 #include <linux/backlight.h>
+#include <linux/dmi.h>
 
 extern int atom_debug;
 
@@ -2183,9 +2184,17 @@ int radeon_atom_pick_dig_encoder(struct
 		goto assigned;
 	}
 
-	/* on DCE32 and encoder can driver any block so just crtc id */
+	/*
+	 * On DCE32 any encoder can drive any block so usually just use crtc id,
+	 * but Apple thinks different at least on iMac10,1, so there use linkb,
+	 * otherwise the internal eDP panel will stay dark.
+	 */
 	if (ASIC_IS_DCE32(rdev)) {
-		enc_idx = radeon_crtc->crtc_id;
+		if (dmi_match(DMI_PRODUCT_NAME, "iMac10,1"))
+			enc_idx = (dig->linkb) ? 1 : 0;
+		else
+			enc_idx = radeon_crtc->crtc_id;
+
 		goto assigned;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/ci_dpm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/ci_dpm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/ci_dpm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/ci_dpm.c	2017-09-27 08:40:05.000000000 -0400
@@ -776,6 +776,18 @@ bool ci_dpm_vblank_too_short(struct rade
 	u32 vblank_time = r600_dpm_get_vblank_time(rdev);
 	u32 switch_limit = pi->mem_gddr5 ? 450 : 300;
 
+	/* disable mclk switching if the refresh is >120Hz, even if the
+        * blanking period would allow it
+        */
+	if (r600_dpm_get_vrefresh(rdev) > 120)
+		return true;
+
+	/* disable mclk switching if the refresh is >120Hz, even if the
+        * blanking period would allow it
+        */
+	if (r600_dpm_get_vrefresh(rdev) > 120)
+		return true;
+
 	if (vblank_time < switch_limit)
 		return true;
 	else
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/cik.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/cik.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/cik.c	2016-12-11 17:42:53.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/cik.c	2017-09-27 14:41:00.000000000 -0400
@@ -7335,7 +7335,7 @@ static inline void cik_irq_ack(struct ra
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
@@ -7365,7 +7365,7 @@ static inline void cik_irq_ack(struct ra
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.cik.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_RX_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/evergreen.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/evergreen.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/evergreen.c	2016-12-11 17:42:36.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/evergreen.c	2017-09-27 14:40:31.000000000 -0400
@@ -4933,7 +4933,7 @@ static void evergreen_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
@@ -4964,7 +4964,7 @@ static void evergreen_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_RX_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/r600.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/r600.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/r600.c	2016-12-11 17:42:36.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/r600.c	2017-09-27 14:40:31.000000000 -0400
@@ -3947,7 +3947,7 @@ static void r600_irq_ack(struct radeon_d
 			WREG32(DC_HPD5_INT_CONTROL, tmp);
 		}
 		if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT) {
-			tmp = RREG32(DC_HPD5_INT_CONTROL);
+			tmp = RREG32(DC_HPD6_INT_CONTROL);
 			tmp |= DC_HPDx_INT_ACK;
 			WREG32(DC_HPD6_INT_CONTROL, tmp);
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_combios.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_combios.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_combios.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_combios.c	2017-09-27 08:40:05.000000000 -0400
@@ -3393,6 +3393,13 @@ void radeon_combios_asic_init(struct drm
 	    rdev->pdev->subsystem_vendor == 0x103c &&
 	    rdev->pdev->subsystem_device == 0x280a)
 		return;
+	/* quirk for rs4xx Toshiba Sattellite L20-183 latop to make it resume
+	 * - it hangs on resume inside the dynclk 1 table.
+	 */
+	if (rdev->family == CHIP_RS400 &&
+	    rdev->pdev->subsystem_vendor == 0x1179 &&
+	    rdev->pdev->subsystem_device == 0xff31)
+	        return;
 
 	/* DYN CLK 1 */
 	table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_cursor.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_cursor.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_cursor.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_cursor.c	2017-09-27 08:40:05.000000000 -0400
@@ -90,6 +90,9 @@ static void radeon_show_cursor(struct dr
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 	struct radeon_device *rdev = crtc->dev->dev_private;
 
+	if (radeon_crtc->cursor_out_of_bounds)
+		return;
+
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(EVERGREEN_CUR_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
 		       upper_32_bits(radeon_crtc->cursor_addr));
@@ -143,21 +146,25 @@ static int radeon_cursor_move_locked(str
 	int xorigin = 0, yorigin = 0;
 	int w = radeon_crtc->cursor_width;
 
+	radeon_crtc->cursor_x = x;
+	radeon_crtc->cursor_y = y;
+
 	if (ASIC_IS_AVIVO(rdev)) {
 		/* avivo cursor are offset into the total surface */
 		x += crtc->x;
 		y += crtc->y;
 	}
-	DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
 
-	if (x < 0) {
+	if (x < 0)
 		xorigin = min(-x, radeon_crtc->max_cursor_width - 1);
-		x = 0;
-	}
-	if (y < 0) {
+	if (y < 0)
 		yorigin = min(-y, radeon_crtc->max_cursor_height - 1);
-		y = 0;
+
+	if (!ASIC_IS_AVIVO(rdev)) {
+		x += crtc->x;
+		y += crtc->y;
 	}
+	DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
 
 	/* fixed on DCE6 and newer */
 	if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE6(rdev)) {
@@ -180,27 +187,31 @@ static int radeon_cursor_move_locked(str
 		if (i > 1) {
 			int cursor_end, frame_end;
 
-			cursor_end = x - xorigin + w;
+			cursor_end = x + w;
 			frame_end = crtc->x + crtc->mode.crtc_hdisplay;
 			if (cursor_end >= frame_end) {
 				w = w - (cursor_end - frame_end);
 				if (!(frame_end & 0x7f))
 					w--;
-			} else {
-				if (!(cursor_end & 0x7f))
-					w--;
+			} else if (cursor_end <= 0) {
+				goto out_of_bounds;
+			} else if (!(cursor_end & 0x7f)) {
+				w--;
 			}
 			if (w <= 0) {
-				w = 1;
-				cursor_end = x - xorigin + w;
-				if (!(cursor_end & 0x7f)) {
-					x--;
-					WARN_ON_ONCE(x < 0);
-				}
+				goto out_of_bounds;
 			}
 		}
 	}
 
+	if (x <= (crtc->x - w) || y <= (crtc->y - radeon_crtc->cursor_height) ||
+	    x >= (crtc->x + crtc->mode.hdisplay) ||
+	    y >= (crtc->y + crtc->mode.vdisplay))
+		goto out_of_bounds;
+
+	x += xorigin;
+	y += yorigin;
+
 	if (ASIC_IS_DCE4(rdev)) {
 		WREG32(EVERGREEN_CUR_POSITION + radeon_crtc->crtc_offset, (x << 16) | y);
 		WREG32(EVERGREEN_CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin);
@@ -212,6 +223,9 @@ static int radeon_cursor_move_locked(str
 		WREG32(AVIVO_D1CUR_SIZE + radeon_crtc->crtc_offset,
 		       ((w - 1) << 16) | (radeon_crtc->cursor_height - 1));
 	} else {
+		x -= crtc->x;
+		y -= crtc->y;
+
 		if (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)
 			y *= 2;
 
@@ -229,9 +243,19 @@ static int radeon_cursor_move_locked(str
 		       yorigin * 256);
 	}
 
-	radeon_crtc->cursor_x = x;
-	radeon_crtc->cursor_y = y;
+	if (radeon_crtc->cursor_out_of_bounds) {
+		radeon_crtc->cursor_out_of_bounds = false;
+		if (radeon_crtc->cursor_bo)
+			radeon_show_cursor(crtc);
+	}
+
+	return 0;
 
+ out_of_bounds:
+	if (!radeon_crtc->cursor_out_of_bounds) {
+		radeon_hide_cursor(crtc);
+		radeon_crtc->cursor_out_of_bounds = true;
+	}
 	return 0;
 }
 
@@ -297,22 +321,23 @@ int radeon_crtc_cursor_set2(struct drm_c
 		return ret;
 	}
 
-	radeon_crtc->cursor_width = width;
-	radeon_crtc->cursor_height = height;
-
 	radeon_lock_cursor(crtc, true);
 
-	if (hot_x != radeon_crtc->cursor_hot_x ||
+	if (width != radeon_crtc->cursor_width ||
+	    height != radeon_crtc->cursor_height ||
+	    hot_x != radeon_crtc->cursor_hot_x ||
 	    hot_y != radeon_crtc->cursor_hot_y) {
 		int x, y;
 
 		x = radeon_crtc->cursor_x + radeon_crtc->cursor_hot_x - hot_x;
 		y = radeon_crtc->cursor_y + radeon_crtc->cursor_hot_y - hot_y;
 
-		radeon_cursor_move_locked(crtc, x, y);
-
+		radeon_crtc->cursor_width = width;
+		radeon_crtc->cursor_height = height;
 		radeon_crtc->cursor_hot_x = hot_x;
 		radeon_crtc->cursor_hot_y = hot_y;
+
+		radeon_cursor_move_locked(crtc, x, y);
 	}
 
 	radeon_show_cursor(crtc);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_device.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_device.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_device.c	2017-09-27 08:40:05.000000000 -0400
@@ -136,6 +136,10 @@ static struct radeon_px_quirk radeon_px_
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=51381
 	 */
 	{ PCI_VENDOR_ID_ATI, 0x6840, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
+	/* Asus K53TK laptop with AMD A6-3420M APU and Radeon 7670m GPU
+	 * https://bugs.freedesktop.org/show_bug.cgi?id=101491
+	 */
+	{ PCI_VENDOR_ID_ATI, 0x6741, 0x1043, 0x2122, RADEON_PX_QUIRK_DISABLE_PX },
 	/* macbook pro 8.2 */
 	{ PCI_VENDOR_ID_ATI, 0x6741, PCI_VENDOR_ID_APPLE, 0x00e2, RADEON_PX_QUIRK_LONG_WAKEUP },
 	{ 0, 0, 0, 0, 0 },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -97,9 +97,10 @@
  *   2.46.0 - Add PFP_SYNC_ME support on evergreen
  *   2.47.0 - Add UVD_NO_OP register support
  *   2.48.0 - TA_CS_BC_BASE_ADDR allowed on SI
+ *   2.49.0 - DRM_RADEON_GEM_INFO ioctl returns correct vram_size/visible values
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	48
+#define KMS_DRIVER_MINOR	49
 #define KMS_DRIVER_PATCHLEVEL	0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);
@@ -366,11 +367,10 @@ static void
 radeon_pci_shutdown(struct pci_dev *pdev)
 {
 	/* if we are running in a VM, make sure the device
-	 * torn down properly on reboot/shutdown.
-	 * unfortunately we can't detect certain
-	 * hypervisors so just do this all the time.
+	 * torn down properly on reboot/shutdown
 	 */
-	radeon_pci_remove(pdev);
+	if (radeon_device_is_virtual())
+		radeon_pci_remove(pdev);
 }
 
 static int radeon_pmops_suspend(struct device *dev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_gem.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_gem.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_gem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_gem.c	2017-09-27 08:40:05.000000000 -0400
@@ -220,8 +220,8 @@ int radeon_gem_info_ioctl(struct drm_dev
 
 	man = &rdev->mman.bdev.man[TTM_PL_VRAM];
 
-	args->vram_size = rdev->mc.real_vram_size;
-	args->vram_visible = (u64)man->size << PAGE_SHIFT;
+	args->vram_size = (u64)man->size << PAGE_SHIFT;
+	args->vram_visible = rdev->mc.visible_vram_size;
 	args->vram_visible -= rdev->vram_pin_size;
 	args->gart_size = rdev->mc.gtt_size;
 	args->gart_size -= rdev->gart_pin_size;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_mode.h linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_mode.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_mode.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_mode.h	2017-09-27 08:40:05.000000000 -0400
@@ -330,6 +330,7 @@ struct radeon_crtc {
 	u16 lut_r[256], lut_g[256], lut_b[256];
 	bool enabled;
 	bool can_tile;
+	bool cursor_out_of_bounds;
 	uint32_t crtc_offset;
 	struct drm_gem_object *cursor_bo;
 	uint64_t cursor_addr;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_ttm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_ttm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/radeon_ttm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/radeon_ttm.c	2017-09-27 08:40:05.000000000 -0400
@@ -213,8 +213,8 @@ static void radeon_evict_flags(struct tt
 			rbo->placement.num_busy_placement = 0;
 			for (i = 0; i < rbo->placement.num_placement; i++) {
 				if (rbo->placements[i].flags & TTM_PL_FLAG_VRAM) {
-					if (rbo->placements[0].fpfn < fpfn)
-						rbo->placements[0].fpfn = fpfn;
+					if (rbo->placements[i].fpfn < fpfn)
+						rbo->placements[i].fpfn = fpfn;
 				} else {
 					rbo->placement.busy_placement =
 						&rbo->placements[i];
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/si.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/si.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/si.c	2016-12-11 17:42:46.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/si.c	2017-09-27 14:40:47.000000000 -0400
@@ -1573,15 +1573,13 @@ static int si_init_microcode(struct rade
 	int err;
 	int new_fw = 0;
 	bool new_smc = false;
+	bool si58_fw = false;
 
 	DRM_DEBUG("\n");
 
 	switch (rdev->family) {
 	case CHIP_TAHITI:
 		chip_name = "TAHITI";
-		/* XXX: figure out which Tahitis need the new ucode */
-		if (0)
-			new_smc = true;
 		new_chip_name = "tahiti";
 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
 		me_req_size = SI_PM4_UCODE_SIZE * 4;
@@ -1593,12 +1591,9 @@ static int si_init_microcode(struct rade
 		break;
 	case CHIP_PITCAIRN:
 		chip_name = "PITCAIRN";
-		if ((rdev->pdev->revision == 0x81) ||
-		    (rdev->pdev->device == 0x6810) ||
-		    (rdev->pdev->device == 0x6811) ||
-		    (rdev->pdev->device == 0x6816) ||
-		    (rdev->pdev->device == 0x6817) ||
-		    (rdev->pdev->device == 0x6806))
+		if ((rdev->pdev->revision == 0x81) &&
+		    ((rdev->pdev->device == 0x6810) ||
+		     (rdev->pdev->device == 0x6811)))
 			new_smc = true;
 		new_chip_name = "pitcairn";
 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
@@ -1611,15 +1606,15 @@ static int si_init_microcode(struct rade
 		break;
 	case CHIP_VERDE:
 		chip_name = "VERDE";
-		if ((rdev->pdev->revision == 0x81) ||
-		    (rdev->pdev->revision == 0x83) ||
-		    (rdev->pdev->revision == 0x87) ||
-		    (rdev->pdev->device == 0x6820) ||
-		    (rdev->pdev->device == 0x6821) ||
-		    (rdev->pdev->device == 0x6822) ||
-		    (rdev->pdev->device == 0x6823) ||
-		    (rdev->pdev->device == 0x682A) ||
-		    (rdev->pdev->device == 0x682B))
+		if (((rdev->pdev->device == 0x6820) &&
+		     ((rdev->pdev->revision == 0x81) ||
+		      (rdev->pdev->revision == 0x83))) ||
+		    ((rdev->pdev->device == 0x6821) &&
+		     ((rdev->pdev->revision == 0x83) ||
+		      (rdev->pdev->revision == 0x87))) ||
+		    ((rdev->pdev->revision == 0x87) &&
+		     ((rdev->pdev->device == 0x6823) ||
+		      (rdev->pdev->device == 0x682b))))
 			new_smc = true;
 		new_chip_name = "verde";
 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
@@ -1632,12 +1627,13 @@ static int si_init_microcode(struct rade
 		break;
 	case CHIP_OLAND:
 		chip_name = "OLAND";
-		if ((rdev->pdev->revision == 0xC7) ||
-		    (rdev->pdev->revision == 0x80) ||
-		    (rdev->pdev->revision == 0x81) ||
-		    (rdev->pdev->revision == 0x83) ||
-		    (rdev->pdev->device == 0x6604) ||
-		    (rdev->pdev->device == 0x6605))
+		if (((rdev->pdev->revision == 0x81) &&
+		     ((rdev->pdev->device == 0x6600) ||
+		      (rdev->pdev->device == 0x6604) ||
+		      (rdev->pdev->device == 0x6605) ||
+		      (rdev->pdev->device == 0x6610))) ||
+		    ((rdev->pdev->revision == 0x83) &&
+		     (rdev->pdev->device == 0x6610)))
 			new_smc = true;
 		new_chip_name = "oland";
 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
@@ -1649,12 +1645,15 @@ static int si_init_microcode(struct rade
 		break;
 	case CHIP_HAINAN:
 		chip_name = "HAINAN";
-		if ((rdev->pdev->revision == 0x81) ||
-		    (rdev->pdev->revision == 0x83) ||
-		    (rdev->pdev->revision == 0xC3) ||
-		    (rdev->pdev->device == 0x6664) ||
-		    (rdev->pdev->device == 0x6665) ||
-		    (rdev->pdev->device == 0x6667))
+		if (((rdev->pdev->revision == 0x81) &&
+		     (rdev->pdev->device == 0x6660)) ||
+		    ((rdev->pdev->revision == 0x83) &&
+		     ((rdev->pdev->device == 0x6660) ||
+		      (rdev->pdev->device == 0x6663) ||
+		      (rdev->pdev->device == 0x6665) ||
+		      (rdev->pdev->device == 0x6667))) ||
+		    ((rdev->pdev->revision == 0xc3) &&
+		     (rdev->pdev->device == 0x6665)))
 			new_smc = true;
 		new_chip_name = "hainan";
 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
@@ -1667,6 +1666,10 @@ static int si_init_microcode(struct rade
 	default: BUG();
 	}
 
+	/* this memory configuration requires special firmware */
+	if (((RREG32(MC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
+		si58_fw = true;
+
 	DRM_INFO("Loading %s Microcode\n", new_chip_name);
 
 	snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", new_chip_name);
@@ -1770,7 +1773,10 @@ static int si_init_microcode(struct rade
 		}
 	}
 
-	snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", new_chip_name);
+	if (si58_fw)
+		snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/");
+	else
+		snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", new_chip_name);
 	err = reject_firmware(&rdev->mc_fw, fw_name, rdev->dev);
 	if (err) {
 		snprintf(fw_name, sizeof(fw_name), "/*(DEBLOBBED)*/", chip_name);
@@ -6255,7 +6261,7 @@ static inline void si_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
@@ -6286,7 +6292,7 @@ static inline void si_irq_ack(struct rad
 		WREG32(DC_HPD5_INT_CONTROL, tmp);
 	}
 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_RX_INTERRUPT) {
-		tmp = RREG32(DC_HPD5_INT_CONTROL);
+		tmp = RREG32(DC_HPD6_INT_CONTROL);
 		tmp |= DC_HPDx_RX_INT_ACK;
 		WREG32(DC_HPD6_INT_CONTROL, tmp);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/radeon/si_dpm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/si_dpm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/radeon/si_dpm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/radeon/si_dpm.c	2017-09-27 08:40:05.000000000 -0400
@@ -3008,24 +3008,12 @@ static void si_apply_state_adjust_rules(
 		    (rdev->pdev->device == 0x6817) ||
 		    (rdev->pdev->device == 0x6806))
 			max_mclk = 120000;
-	} else if (rdev->family == CHIP_VERDE) {
-		if ((rdev->pdev->revision == 0x81) ||
-		    (rdev->pdev->revision == 0x83) ||
-		    (rdev->pdev->revision == 0x87) ||
-		    (rdev->pdev->device == 0x6820) ||
-		    (rdev->pdev->device == 0x6821) ||
-		    (rdev->pdev->device == 0x6822) ||
-		    (rdev->pdev->device == 0x6823) ||
-		    (rdev->pdev->device == 0x682A) ||
-		    (rdev->pdev->device == 0x682B)) {
-			max_sclk = 75000;
-			max_mclk = 80000;
-		}
 	} else if (rdev->family == CHIP_OLAND) {
 		if ((rdev->pdev->revision == 0xC7) ||
 		    (rdev->pdev->revision == 0x80) ||
 		    (rdev->pdev->revision == 0x81) ||
 		    (rdev->pdev->revision == 0x83) ||
+		    (rdev->pdev->revision == 0x87) ||
 		    (rdev->pdev->device == 0x6604) ||
 		    (rdev->pdev->device == 0x6605)) {
 			max_sclk = 75000;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/rcar-du/rcar_du_crtc.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,8 +149,8 @@ static void rcar_du_crtc_set_display_tim
 	rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? OTAR2 : OTAR, 0);
 
 	/* Signal polarities */
-	value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : DSMR_VSL)
-	      | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : DSMR_HSL)
+	value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? DSMR_VSL : 0)
+	      | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? DSMR_HSL : 0)
 	      | DSMR_DIPM_DISP | DSMR_CSPM;
 	rcar_du_crtc_write(rcrtc, DSMR, value);
 
@@ -172,7 +172,7 @@ static void rcar_du_crtc_set_display_tim
 					mode->crtc_vsync_start - 1);
 	rcar_du_crtc_write(rcrtc, VCR,  mode->crtc_vtotal - 1);
 
-	rcar_du_crtc_write(rcrtc, DESR,  mode->htotal - mode->hsync_start);
+	rcar_du_crtc_write(rcrtc, DESR,  mode->htotal - mode->hsync_start - 1);
 	rcar_du_crtc_write(rcrtc, DEWR,  mode->hdisplay);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/rcar-du/rcar_du_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -285,7 +285,6 @@ static int rcar_du_remove(struct platfor
 
 	drm_kms_helper_poll_fini(ddev);
 	drm_mode_config_cleanup(ddev);
-	drm_vblank_cleanup(ddev);
 
 	drm_dev_unref(ddev);
 
@@ -305,7 +304,7 @@ static int rcar_du_probe(struct platform
 		return -ENODEV;
 	}
 
-	/* Allocate and initialize the DRM and R-Car device structures. */
+	/* Allocate and initialize the R-Car device structure. */
 	rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL);
 	if (rcdu == NULL)
 		return -ENOMEM;
@@ -315,31 +314,22 @@ static int rcar_du_probe(struct platform
 	rcdu->dev = &pdev->dev;
 	rcdu->info = of_match_device(rcar_du_of_table, rcdu->dev)->data;
 
-	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
-	if (IS_ERR(ddev))
-		return PTR_ERR(ddev);
-
-	rcdu->ddev = ddev;
-	ddev->dev_private = rcdu;
-
 	platform_set_drvdata(pdev, rcdu);
 
 	/* I/O resources */
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
-	if (IS_ERR(rcdu->mmio)) {
-		ret = PTR_ERR(rcdu->mmio);
-		goto error;
-	}
-
-	/* Initialize vertical blanking interrupts handling. Start with vblank
-	 * disabled for all CRTCs.
-	 */
-	ret = drm_vblank_init(ddev, (1 << rcdu->info->num_crtcs) - 1);
-	if (ret < 0)
-		goto error;
+	if (IS_ERR(rcdu->mmio))
+		return PTR_ERR(rcdu->mmio);
 
 	/* DRM/KMS objects */
+	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);
+	if (IS_ERR(ddev))
+		return PTR_ERR(ddev);
+
+	rcdu->ddev = ddev;
+	ddev->dev_private = rcdu;
+
 	ret = rcar_du_modeset_init(rcdu);
 	if (ret < 0) {
 		if (ret != -EPROBE_DEFER)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c linux-libre-4.9.52-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/rcar-du/rcar_du_kms.c	2017-09-27 08:40:05.000000000 -0400
@@ -453,13 +453,13 @@ static int rcar_du_encoders_init_one(str
 	}
 
 	ret = rcar_du_encoder_init(rcdu, enc_type, output, encoder, connector);
-	of_node_put(encoder);
-	of_node_put(connector);
-
 	if (ret && ret != -EPROBE_DEFER)
 		dev_warn(rcdu->dev,
-			 "failed to initialize encoder %s (%d), skipping\n",
-			 encoder->full_name, ret);
+			 "failed to initialize encoder %s on output %u (%d), skipping\n",
+			 of_node_full_name(encoder), output, ret);
+
+	of_node_put(encoder);
+	of_node_put(connector);
 
 	return ret;
 }
@@ -567,6 +567,13 @@ int rcar_du_modeset_init(struct rcar_du_
 	if (ret < 0)
 		return ret;
 
+	/* Initialize vertical blanking interrupts handling. Start with vblank
+	 * disabled for all CRTCs.
+	 */
+	ret = drm_vblank_init(dev, (1 << rcdu->info->num_crtcs) - 1);
+	if (ret < 0)
+		return ret;
+
 	/* Initialize the groups. */
 	num_groups = DIV_ROUND_UP(rcdu->num_crtcs, 2);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/savage/savage_state.c linux-libre-4.9.52-gnu/drivers/gpu/drm/savage/savage_state.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/savage/savage_state.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/savage/savage_state.c	2017-09-27 08:40:05.000000000 -0400
@@ -1004,6 +1004,7 @@ int savage_bci_cmdbuf(struct drm_device
 		kvb_addr = memdup_user(cmdbuf->vb_addr, cmdbuf->vb_size);
 		if (IS_ERR(kvb_addr)) {
 			ret = PTR_ERR(kvb_addr);
+			kvb_addr = NULL;
 			goto done;
 		}
 		cmdbuf->vb_addr = kvb_addr;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/sti/sti_gdp.c linux-libre-4.9.52-gnu/drivers/gpu/drm/sti/sti_gdp.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/sti/sti_gdp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/sti/sti_gdp.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,7 +66,9 @@ static struct gdp_format_to_str {
 #define GAM_GDP_ALPHARANGE_255  BIT(5)
 #define GAM_GDP_AGC_FULL_RANGE  0x00808080
 #define GAM_GDP_PPT_IGNORE      (BIT(1) | BIT(0))
-#define GAM_GDP_SIZE_MAX        0x7FF
+
+#define GAM_GDP_SIZE_MAX_WIDTH  3840
+#define GAM_GDP_SIZE_MAX_HEIGHT 2160
 
 #define GDP_NODE_NB_BANK        2
 #define GDP_NODE_PER_FIELD      2
@@ -633,8 +635,8 @@ static int sti_gdp_atomic_check(struct d
 	/* src_x are in 16.16 format */
 	src_x = state->src_x >> 16;
 	src_y = state->src_y >> 16;
-	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX);
-	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX);
+	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX_WIDTH);
+	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX_HEIGHT);
 
 	format = sti_gdp_fourcc2format(fb->pixel_format);
 	if (format == -1) {
@@ -732,8 +734,8 @@ static void sti_gdp_atomic_update(struct
 	/* src_x are in 16.16 format */
 	src_x = state->src_x >> 16;
 	src_y = state->src_y >> 16;
-	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX);
-	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX);
+	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX_WIDTH);
+	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX_HEIGHT);
 
 	list = sti_gdp_get_free_nodes(gdp);
 	top_field = list->top_field;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_backend.c linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_backend.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_backend.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_backend.c	2017-09-27 08:40:05.000000000 -0400
@@ -408,6 +408,7 @@ static int sun4i_backend_remove(struct p
 
 static const struct of_device_id sun4i_backend_of_table[] = {
 	{ .compatible = "allwinner,sun5i-a13-display-backend" },
+	{ .compatible = "allwinner,sun6i-a31-display-backend" },
 	{ .compatible = "allwinner,sun8i-a33-display-backend" },
 	{ }
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,6 +47,13 @@ static void sun4i_drv_disable_vblank(str
 	sun4i_tcon_enable_vblank(tcon, false);
 }
 
+static void sun4i_drv_lastclose(struct drm_device *dev)
+{
+	struct sun4i_drv *drv = dev->dev_private;
+
+	drm_fbdev_cma_restore_mode(drv->fbdev);
+}
+
 static const struct file_operations sun4i_drv_fops = {
 	.owner		= THIS_MODULE,
 	.open		= drm_open,
@@ -65,6 +72,7 @@ static struct drm_driver sun4i_drv_drive
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC,
 
 	/* Generic Operations */
+	.lastclose		= sun4i_drv_lastclose,
 	.fops			= &sun4i_drv_fops,
 	.name			= "sun4i-drm",
 	.desc			= "Allwinner sun4i Display Engine",
@@ -201,12 +209,15 @@ static const struct component_master_ops
 static bool sun4i_drv_node_is_frontend(struct device_node *node)
 {
 	return of_device_is_compatible(node, "allwinner,sun5i-a13-display-frontend") ||
+		of_device_is_compatible(node, "allwinner,sun6i-a31-display-frontend") ||
 		of_device_is_compatible(node, "allwinner,sun8i-a33-display-frontend");
 }
 
 static bool sun4i_drv_node_is_tcon(struct device_node *node)
 {
 	return of_device_is_compatible(node, "allwinner,sun5i-a13-tcon") ||
+		of_device_is_compatible(node, "allwinner,sun6i-a31-tcon") ||
+		of_device_is_compatible(node, "allwinner,sun6i-a31s-tcon") ||
 		of_device_is_compatible(node, "allwinner,sun8i-a33-tcon");
 }
 
@@ -322,6 +333,8 @@ static int sun4i_drv_remove(struct platf
 
 static const struct of_device_id sun4i_drv_of_table[] = {
 	{ .compatible = "allwinner,sun5i-a13-display-engine" },
+	{ .compatible = "allwinner,sun6i-a31-display-engine" },
+	{ .compatible = "allwinner,sun6i-a31s-display-engine" },
 	{ .compatible = "allwinner,sun8i-a33-display-engine" },
 	{ }
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.c	2017-09-27 08:40:05.000000000 -0400
@@ -20,6 +20,7 @@
 #include <linux/component.h>
 #include <linux/ioport.h>
 #include <linux/of_address.h>
+#include <linux/of_device.h>
 #include <linux/of_graph.h>
 #include <linux/of_irq.h>
 #include <linux/regmap.h>
@@ -62,7 +63,7 @@ void sun4i_tcon_channel_disable(struct s
 		return;
 	}
 
-	WARN_ON(!tcon->has_channel_1);
+	WARN_ON(!tcon->quirks->has_channel_1);
 	regmap_update_bits(tcon->regs, SUN4I_TCON1_CTL_REG,
 			   SUN4I_TCON1_CTL_TCON_ENABLE, 0);
 	clk_disable_unprepare(tcon->sclk1);
@@ -80,7 +81,7 @@ void sun4i_tcon_channel_enable(struct su
 		return;
 	}
 
-	WARN_ON(!tcon->has_channel_1);
+	WARN_ON(!tcon->quirks->has_channel_1);
 	regmap_update_bits(tcon->regs, SUN4I_TCON1_CTL_REG,
 			   SUN4I_TCON1_CTL_TCON_ENABLE,
 			   SUN4I_TCON1_CTL_TCON_ENABLE);
@@ -202,7 +203,7 @@ void sun4i_tcon1_mode_set(struct sun4i_t
 	u8 clk_delay;
 	u32 val;
 
-	WARN_ON(!tcon->has_channel_1);
+	WARN_ON(!tcon->quirks->has_channel_1);
 
 	/* Adjust clock delay */
 	clk_delay = sun4i_tcon_get_clk_delay(mode, 1);
@@ -266,7 +267,7 @@ void sun4i_tcon1_mode_set(struct sun4i_t
 	/*
 	 * FIXME: Undocumented bits
 	 */
-	if (tcon->has_mux)
+	if (tcon->quirks->has_unknown_mux)
 		regmap_write(tcon->regs, SUN4I_TCON_MUX_CTRL_REG, 1);
 }
 EXPORT_SYMBOL(sun4i_tcon1_mode_set);
@@ -327,7 +328,7 @@ static int sun4i_tcon_init_clocks(struct
 		return PTR_ERR(tcon->sclk0);
 	}
 
-	if (tcon->has_channel_1) {
+	if (tcon->quirks->has_channel_1) {
 		tcon->sclk1 = devm_clk_get(dev, "tcon-ch1");
 		if (IS_ERR(tcon->sclk1)) {
 			dev_err(dev, "Couldn't get the TCON channel 1 clock\n");
@@ -487,14 +488,7 @@ static int sun4i_tcon_bind(struct device
 	drv->tcon = tcon;
 	tcon->drm = drm;
 	tcon->dev = dev;
-
-	if (of_device_is_compatible(dev->of_node, "allwinner,sun5i-a13-tcon")) {
-		tcon->has_mux = true;
-		tcon->has_channel_1 = true;
-	} else {
-		tcon->has_mux = false;
-		tcon->has_channel_1 = false;
-	}
+	tcon->quirks = of_device_get_match_data(dev);
 
 	tcon->lcd_rst = devm_reset_control_get(dev, "lcd");
 	if (IS_ERR(tcon->lcd_rst)) {
@@ -588,9 +582,28 @@ static int sun4i_tcon_remove(struct plat
 	return 0;
 }
 
+static const struct sun4i_tcon_quirks sun5i_a13_quirks = {
+	.has_unknown_mux = true,
+	.has_channel_1	= true,
+};
+
+static const struct sun4i_tcon_quirks sun6i_a31_quirks = {
+	.has_channel_1	= true,
+};
+
+static const struct sun4i_tcon_quirks sun6i_a31s_quirks = {
+	.has_channel_1	= true,
+};
+
+static const struct sun4i_tcon_quirks sun8i_a33_quirks = {
+	/* nothing is supported */
+};
+
 static const struct of_device_id sun4i_tcon_of_table[] = {
-	{ .compatible = "allwinner,sun5i-a13-tcon" },
-	{ .compatible = "allwinner,sun8i-a33-tcon" },
+	{ .compatible = "allwinner,sun5i-a13-tcon", .data = &sun5i_a13_quirks },
+	{ .compatible = "allwinner,sun6i-a31-tcon", .data = &sun6i_a31_quirks },
+	{ .compatible = "allwinner,sun6i-a31s-tcon", .data = &sun6i_a31s_quirks },
+	{ .compatible = "allwinner,sun8i-a33-tcon", .data = &sun8i_a33_quirks },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, sun4i_tcon_of_table);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.h linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/sun4i/sun4i_tcon.h	2017-09-27 08:40:05.000000000 -0400
@@ -142,6 +142,11 @@
 
 #define SUN4I_TCON_MAX_CHANNELS		2
 
+struct sun4i_tcon_quirks {
+	bool	has_unknown_mux; /* sun5i has undocumented mux */
+	bool	has_channel_1;	/* a33 does not have channel 1 */
+};
+
 struct sun4i_tcon {
 	struct device			*dev;
 	struct drm_device		*drm;
@@ -160,12 +165,10 @@ struct sun4i_tcon {
 	/* Reset control */
 	struct reset_control		*lcd_rst;
 
-	/* Platform adjustments */
-	bool				has_mux;
-
 	struct drm_panel		*panel;
 
-	bool				has_channel_1;
+	/* Platform adjustments */
+	const struct sun4i_tcon_quirks	*quirks;
 };
 
 struct drm_bridge *sun4i_tcon_find_bridge(struct device_node *node);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/tegra/dpaux.c linux-libre-4.9.52-gnu/drivers/gpu/drm/tegra/dpaux.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/tegra/dpaux.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/tegra/dpaux.c	2017-09-27 08:40:05.000000000 -0400
@@ -539,9 +539,9 @@ static int tegra_dpaux_probe(struct plat
 	dpaux->desc.owner = THIS_MODULE;
 
 	dpaux->pinctrl = devm_pinctrl_register(&pdev->dev, &dpaux->desc, dpaux);
-	if (!dpaux->pinctrl) {
+	if (IS_ERR(dpaux->pinctrl)) {
 		dev_err(&pdev->dev, "failed to register pincontrol\n");
-		return -ENODEV;
+		return PTR_ERR(dpaux->pinctrl);
 	}
 #endif
 	/* enable and clear all interrupts */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_bo.c linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_bo.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_bo.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_bo.c	2017-09-27 08:40:05.000000000 -0400
@@ -1343,7 +1343,6 @@ int ttm_bo_clean_mm(struct ttm_bo_device
 		       mem_type);
 		return ret;
 	}
-	fence_put(man->move);
 
 	man->use_type = false;
 	man->has_type = false;
@@ -1355,6 +1354,9 @@ int ttm_bo_clean_mm(struct ttm_bo_device
 		ret = (*man->func->takedown)(man);
 	}
 
+	fence_put(man->move);
+	man->move = NULL;
+
 	return ret;
 }
 EXPORT_SYMBOL(ttm_bo_clean_mm);
@@ -1654,7 +1656,6 @@ static int ttm_bo_swapout(struct ttm_mem
 	struct ttm_buffer_object *bo;
 	int ret = -EBUSY;
 	int put_count;
-	uint32_t swap_placement = (TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM);
 
 	spin_lock(&glob->lru_lock);
 	list_for_each_entry(bo, &glob->swap_lru, swap) {
@@ -1685,7 +1686,8 @@ static int ttm_bo_swapout(struct ttm_mem
 	 * Move to system cached
 	 */
 
-	if ((bo->mem.placement & swap_placement) != swap_placement) {
+	if (bo->mem.mem_type != TTM_PL_SYSTEM ||
+	    bo->ttm->caching_state != tt_cached) {
 		struct ttm_mem_reg evict_mem;
 
 		evict_mem = bo->mem;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_bo_vm.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,8 +66,11 @@ static int ttm_bo_vm_fault_idle(struct t
 		if (vmf->flags & FAULT_FLAG_RETRY_NOWAIT)
 			goto out_unlock;
 
+		ttm_bo_reference(bo);
 		up_read(&vma->vm_mm->mmap_sem);
 		(void) fence_wait(bo->moving, true);
+		ttm_bo_unreserve(bo);
+		ttm_bo_unref(&bo);
 		goto out_unlock;
 	}
 
@@ -120,8 +123,10 @@ static int ttm_bo_vm_fault(struct vm_are
 
 		if (vmf->flags & FAULT_FLAG_ALLOW_RETRY) {
 			if (!(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
+				ttm_bo_reference(bo);
 				up_read(&vma->vm_mm->mmap_sem);
 				(void) ttm_bo_wait_unreserved(bo);
+				ttm_bo_unref(&bo);
 			}
 
 			return VM_FAULT_RETRY;
@@ -166,6 +171,13 @@ static int ttm_bo_vm_fault(struct vm_are
 	ret = ttm_bo_vm_fault_idle(bo, vma, vmf);
 	if (unlikely(ret != 0)) {
 		retval = ret;
+
+		if (retval == VM_FAULT_RETRY &&
+		    !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
+			/* The BO has already been unreserved. */
+			return retval;
+		}
+
 		goto out_unlock;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_object.c linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_object.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_object.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_object.c	2017-09-27 08:40:05.000000000 -0400
@@ -179,7 +179,7 @@ int ttm_base_object_init(struct ttm_obje
 	if (unlikely(ret != 0))
 		goto out_err0;
 
-	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
+	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false);
 	if (unlikely(ret != 0))
 		goto out_err1;
 
@@ -318,7 +318,8 @@ EXPORT_SYMBOL(ttm_ref_object_exists);
 
 int ttm_ref_object_add(struct ttm_object_file *tfile,
 		       struct ttm_base_object *base,
-		       enum ttm_ref_type ref_type, bool *existed)
+		       enum ttm_ref_type ref_type, bool *existed,
+		       bool require_existed)
 {
 	struct drm_open_hash *ht = &tfile->ref_hash[ref_type];
 	struct ttm_ref_object *ref;
@@ -345,6 +346,9 @@ int ttm_ref_object_add(struct ttm_object
 		}
 
 		rcu_read_unlock();
+		if (require_existed)
+			return -EPERM;
+
 		ret = ttm_mem_global_alloc(mem_glob, sizeof(*ref),
 					   false, false);
 		if (unlikely(ret != 0))
@@ -635,7 +639,7 @@ int ttm_prime_fd_to_handle(struct ttm_ob
 	prime = (struct ttm_prime_object *) dma_buf->priv;
 	base = &prime->base;
 	*handle = base->hash.key;
-	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
+	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL, false);
 
 	dma_buf_put(dma_buf);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/ttm/ttm_page_alloc.c	2017-09-27 08:40:05.000000000 -0400
@@ -612,7 +612,7 @@ static void ttm_page_pool_fill_locked(st
 		} else {
 			pr_err("Failed to fill pool (%p)\n", pool);
 			/* If we have any pages left put them to the pool. */
-			list_for_each_entry(p, &pool->list, lru) {
+			list_for_each_entry(p, &new_pages, lru) {
 				++cpages;
 			}
 			list_splice(&new_pages, &pool->list);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_bo.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_bo.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_bo.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_bo.c	2017-09-27 08:40:05.000000000 -0400
@@ -313,6 +313,14 @@ void vc4_free_object(struct drm_gem_obje
 		goto out;
 	}
 
+	/* If this object was partially constructed but CMA allocation
+	 * had failed, just free it.
+	 */
+	if (!bo->base.vaddr) {
+		vc4_bo_destroy(bo);
+		goto out;
+	}
+
 	cache_list = vc4_get_cache_list_for_size(dev, gem_bo->size);
 	if (!cache_list) {
 		vc4_bo_destroy(bo);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_crtc.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_crtc.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_crtc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_crtc.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,8 +83,7 @@ struct vc4_crtc_data {
 	/* Which channel of the HVS this pixelvalve sources from. */
 	int hvs_channel;
 
-	enum vc4_encoder_type encoder0_type;
-	enum vc4_encoder_type encoder1_type;
+	enum vc4_encoder_type encoder_types[4];
 };
 
 #define CRTC_WRITE(offset, val) writel(val, vc4_crtc->regs + (offset))
@@ -669,6 +668,14 @@ void vc4_disable_vblank(struct drm_devic
 	CRTC_WRITE(PV_INTEN, 0);
 }
 
+/* Must be called with the event lock held */
+bool vc4_event_pending(struct drm_crtc *crtc)
+{
+	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+
+	return !!vc4_crtc->event;
+}
+
 static void vc4_crtc_handle_page_flip(struct vc4_crtc *vc4_crtc)
 {
 	struct drm_crtc *crtc = &vc4_crtc->base;
@@ -832,7 +839,18 @@ static void vc4_crtc_destroy_state(struc
 
 	}
 
-	__drm_atomic_helper_crtc_destroy_state(state);
+	drm_atomic_helper_crtc_destroy_state(crtc, state);
+}
+
+static void
+vc4_crtc_reset(struct drm_crtc *crtc)
+{
+	if (crtc->state)
+		__drm_atomic_helper_crtc_destroy_state(crtc->state);
+
+	crtc->state = kzalloc(sizeof(struct vc4_crtc_state), GFP_KERNEL);
+	if (crtc->state)
+		crtc->state->crtc = crtc;
 }
 
 static const struct drm_crtc_funcs vc4_crtc_funcs = {
@@ -842,7 +860,7 @@ static const struct drm_crtc_funcs vc4_c
 	.set_property = NULL,
 	.cursor_set = NULL, /* handled by drm_mode_cursor_universal */
 	.cursor_move = NULL, /* handled by drm_mode_cursor_universal */
-	.reset = drm_atomic_helper_crtc_reset,
+	.reset = vc4_crtc_reset,
 	.atomic_duplicate_state = vc4_crtc_duplicate_state,
 	.atomic_destroy_state = vc4_crtc_destroy_state,
 	.gamma_set = vc4_crtc_gamma_set,
@@ -859,20 +877,26 @@ static const struct drm_crtc_helper_func
 
 static const struct vc4_crtc_data pv0_data = {
 	.hvs_channel = 0,
-	.encoder0_type = VC4_ENCODER_TYPE_DSI0,
-	.encoder1_type = VC4_ENCODER_TYPE_DPI,
+	.encoder_types = {
+		[PV_CONTROL_CLK_SELECT_DSI] = VC4_ENCODER_TYPE_DSI0,
+		[PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_DPI,
+	},
 };
 
 static const struct vc4_crtc_data pv1_data = {
 	.hvs_channel = 2,
-	.encoder0_type = VC4_ENCODER_TYPE_DSI1,
-	.encoder1_type = VC4_ENCODER_TYPE_SMI,
+	.encoder_types = {
+		[PV_CONTROL_CLK_SELECT_DSI] = VC4_ENCODER_TYPE_DSI1,
+		[PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_SMI,
+	},
 };
 
 static const struct vc4_crtc_data pv2_data = {
 	.hvs_channel = 1,
-	.encoder0_type = VC4_ENCODER_TYPE_VEC,
-	.encoder1_type = VC4_ENCODER_TYPE_HDMI,
+	.encoder_types = {
+		[PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI] = VC4_ENCODER_TYPE_HDMI,
+		[PV_CONTROL_CLK_SELECT_VEC] = VC4_ENCODER_TYPE_VEC,
+	},
 };
 
 static const struct of_device_id vc4_crtc_dt_match[] = {
@@ -886,17 +910,20 @@ static void vc4_set_crtc_possible_masks(
 					struct drm_crtc *crtc)
 {
 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+	const struct vc4_crtc_data *crtc_data = vc4_crtc->data;
+	const enum vc4_encoder_type *encoder_types = crtc_data->encoder_types;
 	struct drm_encoder *encoder;
 
 	drm_for_each_encoder(encoder, drm) {
 		struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+		int i;
 
-		if (vc4_encoder->type == vc4_crtc->data->encoder0_type) {
-			vc4_encoder->clock_select = 0;
-			encoder->possible_crtcs |= drm_crtc_mask(crtc);
-		} else if (vc4_encoder->type == vc4_crtc->data->encoder1_type) {
-			vc4_encoder->clock_select = 1;
-			encoder->possible_crtcs |= drm_crtc_mask(crtc);
+		for (i = 0; i < ARRAY_SIZE(crtc_data->encoder_types); i++) {
+			if (vc4_encoder->type == encoder_types[i]) {
+				vc4_encoder->clock_select = i;
+				encoder->possible_crtcs |= drm_crtc_mask(crtc);
+				break;
+			}
 		}
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -61,21 +61,24 @@ static int vc4_get_param_ioctl(struct dr
 		if (ret < 0)
 			return ret;
 		args->value = V3D_READ(V3D_IDENT0);
-		pm_runtime_put(&vc4->v3d->pdev->dev);
+		pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
+		pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
 		break;
 	case DRM_VC4_PARAM_V3D_IDENT1:
 		ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
 		if (ret < 0)
 			return ret;
 		args->value = V3D_READ(V3D_IDENT1);
-		pm_runtime_put(&vc4->v3d->pdev->dev);
+		pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
+		pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
 		break;
 	case DRM_VC4_PARAM_V3D_IDENT2:
 		ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
 		if (ret < 0)
 			return ret;
 		args->value = V3D_READ(V3D_IDENT2);
-		pm_runtime_put(&vc4->v3d->pdev->dev);
+		pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
+		pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
 		break;
 	case DRM_VC4_PARAM_SUPPORTS_BRANCHES:
 		args->value = true;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_drv.h linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_drv.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_drv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_drv.h	2017-09-27 08:40:05.000000000 -0400
@@ -194,6 +194,7 @@ to_vc4_plane(struct drm_plane *plane)
 }
 
 enum vc4_encoder_type {
+	VC4_ENCODER_TYPE_NONE,
 	VC4_ENCODER_TYPE_HDMI,
 	VC4_ENCODER_TYPE_VEC,
 	VC4_ENCODER_TYPE_DSI0,
@@ -440,6 +441,7 @@ int vc4_bo_stats_debugfs(struct seq_file
 extern struct platform_driver vc4_crtc_driver;
 int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id);
 void vc4_disable_vblank(struct drm_device *dev, unsigned int crtc_id);
+bool vc4_event_pending(struct drm_crtc *crtc);
 int vc4_crtc_debugfs_regs(struct seq_file *m, void *arg);
 int vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id,
 			    unsigned int flags, int *vpos, int *hpos,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_gem.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_gem.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_gem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_gem.c	2017-09-27 08:40:05.000000000 -0400
@@ -544,14 +544,15 @@ vc4_cl_lookup_bos(struct drm_device *dev
 
 	handles = drm_malloc_ab(exec->bo_count, sizeof(uint32_t));
 	if (!handles) {
+		ret = -ENOMEM;
 		DRM_ERROR("Failed to allocate incoming GEM handles\n");
 		goto fail;
 	}
 
-	ret = copy_from_user(handles,
-			     (void __user *)(uintptr_t)args->bo_handles,
-			     exec->bo_count * sizeof(uint32_t));
-	if (ret) {
+	if (copy_from_user(handles,
+			   (void __user *)(uintptr_t)args->bo_handles,
+			   exec->bo_count * sizeof(uint32_t))) {
+		ret = -EFAULT;
 		DRM_ERROR("Failed to copy in GEM handles\n");
 		goto fail;
 	}
@@ -593,12 +594,14 @@ vc4_get_bcl(struct drm_device *dev, stru
 					  args->shader_rec_count);
 	struct vc4_bo *bo;
 
-	if (uniforms_offset < shader_rec_offset ||
+	if (shader_rec_offset < args->bin_cl_size ||
+	    uniforms_offset < shader_rec_offset ||
 	    exec_size < uniforms_offset ||
 	    args->shader_rec_count >= (UINT_MAX /
 					  sizeof(struct vc4_shader_state)) ||
 	    temp_size < exec_size) {
 		DRM_ERROR("overflow in exec arguments\n");
+		ret = -EINVAL;
 		goto fail;
 	}
 
@@ -708,8 +711,10 @@ vc4_complete_exec(struct drm_device *dev
 	}
 
 	mutex_lock(&vc4->power_lock);
-	if (--vc4->power_refcount == 0)
-		pm_runtime_put(&vc4->v3d->pdev->dev);
+	if (--vc4->power_refcount == 0) {
+		pm_runtime_mark_last_busy(&vc4->v3d->pdev->dev);
+		pm_runtime_put_autosuspend(&vc4->v3d->pdev->dev);
+	}
 	mutex_unlock(&vc4->power_lock);
 
 	kfree(exec);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_kms.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_kms.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_kms.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_kms.c	2017-09-27 08:40:05.000000000 -0400
@@ -119,17 +119,34 @@ static int vc4_atomic_commit(struct drm_
 
 	/* Make sure that any outstanding modesets have finished. */
 	if (nonblock) {
-		ret = down_trylock(&vc4->async_modeset);
-		if (ret) {
+		struct drm_crtc *crtc;
+		struct drm_crtc_state *crtc_state;
+		unsigned long flags;
+		bool busy = false;
+
+		/*
+		 * If there's an undispatched event to send then we're
+		 * obviously still busy.  If there isn't, then we can
+		 * unconditionally wait for the semaphore because it
+		 * shouldn't be contended (for long).
+		 *
+		 * This is to prevent a race where queuing a new flip
+		 * from userspace immediately on receipt of an event
+		 * beats our clean-up and returns EBUSY.
+		 */
+		spin_lock_irqsave(&dev->event_lock, flags);
+		for_each_crtc_in_state(state, crtc, crtc_state, i)
+			busy |= vc4_event_pending(crtc);
+		spin_unlock_irqrestore(&dev->event_lock, flags);
+		if (busy) {
 			kfree(c);
 			return -EBUSY;
 		}
-	} else {
-		ret = down_interruptible(&vc4->async_modeset);
-		if (ret) {
-			kfree(c);
-			return ret;
-		}
+	}
+	ret = down_interruptible(&vc4->async_modeset);
+	if (ret) {
+		kfree(c);
+		return ret;
 	}
 
 	ret = drm_atomic_helper_prepare_planes(dev, state);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_regs.h linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_regs.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_regs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_regs.h	2017-09-27 08:40:05.000000000 -0400
@@ -177,8 +177,9 @@
 # define PV_CONTROL_WAIT_HSTART			BIT(12)
 # define PV_CONTROL_PIXEL_REP_MASK		VC4_MASK(5, 4)
 # define PV_CONTROL_PIXEL_REP_SHIFT		4
-# define PV_CONTROL_CLK_SELECT_DSI_VEC		0
+# define PV_CONTROL_CLK_SELECT_DSI		0
 # define PV_CONTROL_CLK_SELECT_DPI_SMI_HDMI	1
+# define PV_CONTROL_CLK_SELECT_VEC		2
 # define PV_CONTROL_CLK_SELECT_MASK		VC4_MASK(3, 2)
 # define PV_CONTROL_CLK_SELECT_SHIFT		2
 # define PV_CONTROL_FIFO_CLR			BIT(1)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_render_cl.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_render_cl.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_render_cl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_render_cl.c	2017-09-27 08:40:05.000000000 -0400
@@ -461,7 +461,7 @@ static int vc4_rcl_surface_setup(struct
 		}
 
 		ret = vc4_full_res_bounds_check(exec, *obj, surf);
-		if (!ret)
+		if (ret)
 			return ret;
 
 		return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_v3d.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_v3d.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_v3d.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_v3d.c	2017-09-27 08:40:05.000000000 -0400
@@ -222,6 +222,8 @@ static int vc4_v3d_bind(struct device *d
 		return ret;
 	}
 
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_set_autosuspend_delay(dev, 40); /* a little over 2 frames. */
 	pm_runtime_enable(dev);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_validate_shaders.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_validate_shaders.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vc4/vc4_validate_shaders.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vc4/vc4_validate_shaders.c	2017-09-27 08:40:05.000000000 -0400
@@ -608,9 +608,7 @@ static bool
 vc4_validate_branches(struct vc4_shader_validation_state *validation_state)
 {
 	uint32_t max_branch_target = 0;
-	bool found_shader_end = false;
 	int ip;
-	int shader_end_ip = 0;
 	int last_branch = -2;
 
 	for (ip = 0; ip < validation_state->max_ip; ip++) {
@@ -621,8 +619,13 @@ vc4_validate_branches(struct vc4_shader_
 		uint32_t branch_target_ip;
 
 		if (sig == QPU_SIG_PROG_END) {
-			shader_end_ip = ip;
-			found_shader_end = true;
+			/* There are two delay slots after program end is
+			 * signaled that are still executed, then we're
+			 * finished.  validation_state->max_ip is the
+			 * instruction after the last valid instruction in the
+			 * program.
+			 */
+			validation_state->max_ip = ip + 3;
 			continue;
 		}
 
@@ -676,15 +679,9 @@ vc4_validate_branches(struct vc4_shader_
 		}
 		set_bit(after_delay_ip, validation_state->branch_targets);
 		max_branch_target = max(max_branch_target, after_delay_ip);
-
-		/* There are two delay slots after program end is signaled
-		 * that are still executed, then we're finished.
-		 */
-		if (found_shader_end && ip == shader_end_ip + 2)
-			break;
 	}
 
-	if (max_branch_target > shader_end_ip) {
+	if (max_branch_target > validation_state->max_ip - 3) {
 		DRM_ERROR("Branch landed after QPU_SIG_PROG_END");
 		return false;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c linux-libre-4.9.52-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/virtio/virtgpu_fb.c	2017-09-27 08:40:05.000000000 -0400
@@ -337,7 +337,7 @@ static int virtio_gpufb_create(struct dr
 	info->fbops = &virtio_gpufb_ops;
 	info->pixmap.flags = FB_PIXMAP_SYSTEM;
 
-	info->screen_base = obj->vmap;
+	info->screen_buffer = obj->vmap;
 	info->screen_size = obj->gem_base.size;
 	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(info, &vfbdev->helper,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/virtio/virtgpu_object.c linux-libre-4.9.52-gnu/drivers/gpu/drm/virtio/virtgpu_object.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/virtio/virtgpu_object.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/virtio/virtgpu_object.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,8 +81,10 @@ int virtio_gpu_object_create(struct virt
 		return -ENOMEM;
 	size = roundup(size, PAGE_SIZE);
 	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, size);
-	if (ret != 0)
+	if (ret != 0) {
+		kfree(bo);
 		return ret;
+	}
 	bo->dumb = false;
 	virtio_gpu_init_ttm_placement(bo, pinned);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c	2017-09-27 08:40:05.000000000 -0400
@@ -321,6 +321,7 @@ void vmw_cmdbuf_res_man_destroy(struct v
 	list_for_each_entry_safe(entry, next, &man->list, head)
 		vmw_cmdbuf_res_free(man, entry);
 
+	drm_ht_remove(&man->resources);
 	kfree(man);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -199,9 +199,14 @@ static const struct drm_ioctl_desc vmw_i
 	VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
 		      vmw_present_readback_ioctl,
 		      DRM_MASTER | DRM_AUTH),
+	/*
+	 * The permissions of the below ioctl are overridden in
+	 * vmw_generic_ioctl(). We require either
+	 * DRM_MASTER or capable(CAP_SYS_ADMIN).
+	 */
 	VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
 		      vmw_kms_update_layout_ioctl,
-		      DRM_MASTER | DRM_CONTROL_ALLOW),
+		      DRM_RENDER_ALLOW),
 	VMW_IOCTL_DEF(VMW_CREATE_SHADER,
 		      vmw_shader_define_ioctl,
 		      DRM_AUTH | DRM_RENDER_ALLOW),
@@ -1125,6 +1130,10 @@ static long vmw_generic_ioctl(struct fil
 
 			return (long) vmw_execbuf_ioctl(dev, arg, file_priv,
 							_IOC_SIZE(cmd));
+		} else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) {
+			if (!drm_is_current_master(file_priv) &&
+			    !capable(CAP_SYS_ADMIN))
+				return -EACCES;
 		}
 
 		if (unlikely(ioctl->cmd != cmd))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h	2017-09-27 08:40:05.000000000 -0400
@@ -41,9 +41,9 @@
 #include <drm/ttm/ttm_module.h>
 #include "vmwgfx_fence.h"
 
-#define VMWGFX_DRIVER_DATE "20160210"
+#define VMWGFX_DRIVER_DATE "20170221"
 #define VMWGFX_DRIVER_MAJOR 2
-#define VMWGFX_DRIVER_MINOR 11
+#define VMWGFX_DRIVER_MINOR 12
 #define VMWGFX_DRIVER_PATCHLEVEL 0
 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000
 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c	2017-09-27 08:40:05.000000000 -0400
@@ -519,7 +519,7 @@ static int vmw_cmd_invalid(struct vmw_pr
 			   struct vmw_sw_context *sw_context,
 			   SVGA3dCmdHeader *header)
 {
-	return capable(CAP_SYS_ADMIN) ? : -EINVAL;
+	return -EINVAL;
 }
 
 static int vmw_cmd_ok(struct vmw_private *dev_priv,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c	2017-09-27 08:40:05.000000000 -0400
@@ -538,7 +538,7 @@ int vmw_fence_create(struct vmw_fence_ma
 		     struct vmw_fence_obj **p_fence)
 {
 	struct vmw_fence_obj *fence;
-	int ret;
+ 	int ret;
 
 	fence = kzalloc(sizeof(*fence), GFP_KERNEL);
 	if (unlikely(fence == NULL))
@@ -701,6 +701,41 @@ void vmw_fence_fifo_up(struct vmw_fence_
 }
 
 
+/**
+ * vmw_fence_obj_lookup - Look up a user-space fence object
+ *
+ * @tfile: A struct ttm_object_file identifying the caller.
+ * @handle: A handle identifying the fence object.
+ * @return: A struct vmw_user_fence base ttm object on success or
+ * an error pointer on failure.
+ *
+ * The fence object is looked up and type-checked. The caller needs
+ * to have opened the fence object first, but since that happens on
+ * creation and fence objects aren't shareable, that's not an
+ * issue currently.
+ */
+static struct ttm_base_object *
+vmw_fence_obj_lookup(struct ttm_object_file *tfile, u32 handle)
+{
+	struct ttm_base_object *base = ttm_base_object_lookup(tfile, handle);
+
+	if (!base) {
+		pr_err("Invalid fence object handle 0x%08lx.\n",
+		       (unsigned long)handle);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (base->refcount_release != vmw_user_fence_base_release) {
+		pr_err("Invalid fence object handle 0x%08lx.\n",
+		       (unsigned long)handle);
+		ttm_base_object_unref(&base);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return base;
+}
+
+
 int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
 			     struct drm_file *file_priv)
 {
@@ -726,13 +761,9 @@ int vmw_fence_obj_wait_ioctl(struct drm_
 		arg->kernel_cookie = jiffies + wait_timeout;
 	}
 
-	base = ttm_base_object_lookup(tfile, arg->handle);
-	if (unlikely(base == NULL)) {
-		printk(KERN_ERR "Wait invalid fence object handle "
-		       "0x%08lx.\n",
-		       (unsigned long)arg->handle);
-		return -EINVAL;
-	}
+	base = vmw_fence_obj_lookup(tfile, arg->handle);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	fence = &(container_of(base, struct vmw_user_fence, base)->fence);
 
@@ -771,13 +802,9 @@ int vmw_fence_obj_signaled_ioctl(struct
 	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 	struct vmw_private *dev_priv = vmw_priv(dev);
 
-	base = ttm_base_object_lookup(tfile, arg->handle);
-	if (unlikely(base == NULL)) {
-		printk(KERN_ERR "Fence signaled invalid fence object handle "
-		       "0x%08lx.\n",
-		       (unsigned long)arg->handle);
-		return -EINVAL;
-	}
+	base = vmw_fence_obj_lookup(tfile, arg->handle);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	fence = &(container_of(base, struct vmw_user_fence, base)->fence);
 	fman = fman_from_fence(fence);
@@ -1024,6 +1051,7 @@ int vmw_fence_event_ioctl(struct drm_dev
 		(struct drm_vmw_fence_event_arg *) data;
 	struct vmw_fence_obj *fence = NULL;
 	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
+	struct ttm_object_file *tfile = vmw_fp->tfile;
 	struct drm_vmw_fence_rep __user *user_fence_rep =
 		(struct drm_vmw_fence_rep __user *)(unsigned long)
 		arg->fence_rep;
@@ -1037,24 +1065,18 @@ int vmw_fence_event_ioctl(struct drm_dev
 	 */
 	if (arg->handle) {
 		struct ttm_base_object *base =
-			ttm_base_object_lookup_for_ref(dev_priv->tdev,
-						       arg->handle);
+			vmw_fence_obj_lookup(tfile, arg->handle);
+
+		if (IS_ERR(base))
+			return PTR_ERR(base);
 
-		if (unlikely(base == NULL)) {
-			DRM_ERROR("Fence event invalid fence object handle "
-				  "0x%08lx.\n",
-				  (unsigned long)arg->handle);
-			return -EINVAL;
-		}
 		fence = &(container_of(base, struct vmw_user_fence,
 				       base)->fence);
 		(void) vmw_fence_obj_reference(fence);
 
 		if (user_fence_rep != NULL) {
-			bool existed;
-
 			ret = ttm_ref_object_add(vmw_fp->tfile, base,
-						 TTM_REF_USAGE, &existed);
+						 TTM_REF_USAGE, NULL, false);
 			if (unlikely(ret != 0)) {
 				DRM_ERROR("Failed to reference a fence "
 					  "object.\n");
@@ -1097,8 +1119,7 @@ int vmw_fence_event_ioctl(struct drm_dev
 	return 0;
 out_no_create:
 	if (user_fence_rep != NULL)
-		ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile,
-					  handle, TTM_REF_USAGE);
+		ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE);
 out_no_ref_obj:
 	vmw_fence_obj_unreference(&fence);
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c	2017-09-27 08:40:05.000000000 -0400
@@ -368,6 +368,8 @@ static void *vmw_local_fifo_reserve(stru
 				return fifo_state->static_buffer;
 			else {
 				fifo_state->dynamic_buffer = vmalloc(bytes);
+				if (!fifo_state->dynamic_buffer)
+					goto out_err;
 				return fifo_state->dynamic_buffer;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,8 +114,6 @@ int vmw_getparam_ioctl(struct drm_device
 		param->value = dev_priv->has_dx;
 		break;
 	default:
-		DRM_ERROR("Illegal vmwgfx get param request: %d\n",
-			  param->param);
 		return -EINVAL;
 	}
 
@@ -186,7 +184,7 @@ int vmw_get_cap_3d_ioctl(struct drm_devi
 	bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
 	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 
-	if (unlikely(arg->pad64 != 0)) {
+	if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) {
 		DRM_ERROR("Illegal GET_3D_CAP argument.\n");
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c	2017-09-27 08:40:05.000000000 -0400
@@ -589,7 +589,7 @@ static int vmw_user_dmabuf_synccpu_grab(
 		return ret;
 
 	ret = ttm_ref_object_add(tfile, &user_bo->prime.base,
-				 TTM_REF_SYNCCPU_WRITE, &existed);
+				 TTM_REF_SYNCCPU_WRITE, &existed, false);
 	if (ret != 0 || existed)
 		ttm_bo_synccpu_write_release(&user_bo->dma.base);
 
@@ -773,7 +773,7 @@ int vmw_user_dmabuf_reference(struct ttm
 
 	*handle = user_bo->prime.base.hash.key;
 	return ttm_ref_object_add(tfile, &user_bo->prime.base,
-				  TTM_REF_USAGE, NULL);
+				  TTM_REF_USAGE, NULL, false);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
--- linux-libre-4.9-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c	2017-09-27 08:40:05.000000000 -0400
@@ -713,11 +713,14 @@ int vmw_surface_define_ioctl(struct drm_
 			128;
 
 	num_sizes = 0;
-	for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
+	for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
+		if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
+			return -EINVAL;
 		num_sizes += req->mip_levels[i];
+	}
 
-	if (num_sizes > DRM_VMW_MAX_SURFACE_FACES *
-	    DRM_VMW_MAX_MIP_LEVELS)
+	if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
+	    num_sizes == 0)
 		return -EINVAL;
 
 	size = vmw_user_surface_size + 128 +
@@ -891,17 +894,16 @@ vmw_surface_handle_reference(struct vmw_
 	uint32_t handle;
 	struct ttm_base_object *base;
 	int ret;
+	bool require_exist = false;
 
 	if (handle_type == DRM_VMW_HANDLE_PRIME) {
 		ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle);
 		if (unlikely(ret != 0))
 			return ret;
 	} else {
-		if (unlikely(drm_is_render_client(file_priv))) {
-			DRM_ERROR("Render client refused legacy "
-				  "surface reference.\n");
-			return -EACCES;
-		}
+		if (unlikely(drm_is_render_client(file_priv)))
+			require_exist = true;
+
 		if (ACCESS_ONCE(vmw_fpriv(file_priv)->locked_master)) {
 			DRM_ERROR("Locked master refused legacy "
 				  "surface reference.\n");
@@ -929,17 +931,14 @@ vmw_surface_handle_reference(struct vmw_
 
 		/*
 		 * Make sure the surface creator has the same
-		 * authenticating master.
+		 * authenticating master, or is already registered with us.
 		 */
 		if (drm_is_primary_client(file_priv) &&
-		    user_srf->master != file_priv->master) {
-			DRM_ERROR("Trying to reference surface outside of"
-				  " master domain.\n");
-			ret = -EACCES;
-			goto out_bad_resource;
-		}
+		    user_srf->master != file_priv->master)
+			require_exist = true;
 
-		ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
+		ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL,
+					 require_exist);
 		if (unlikely(ret != 0)) {
 			DRM_ERROR("Could not add a reference to a surface.\n");
 			goto out_bad_resource;
@@ -1276,11 +1275,14 @@ int vmw_gb_surface_define_ioctl(struct d
 	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 	int ret;
 	uint32_t size;
-	uint32_t backup_handle;
+	uint32_t backup_handle = 0;
 
 	if (req->multisample_count != 0)
 		return -EINVAL;
 
+	if (req->mip_levels > DRM_VMW_MAX_MIP_LEVELS)
+		return -EINVAL;
+
 	if (unlikely(vmw_user_surface_size == 0))
 		vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
 			128;
@@ -1316,12 +1318,16 @@ int vmw_gb_surface_define_ioctl(struct d
 		ret = vmw_user_dmabuf_lookup(tfile, req->buffer_handle,
 					     &res->backup,
 					     &user_srf->backup_base);
-		if (ret == 0 && res->backup->base.num_pages * PAGE_SIZE <
-		    res->backup_size) {
-			DRM_ERROR("Surface backup buffer is too small.\n");
-			vmw_dmabuf_unreference(&res->backup);
-			ret = -EINVAL;
-			goto out_unlock;
+		if (ret == 0) {
+			if (res->backup->base.num_pages * PAGE_SIZE <
+			    res->backup_size) {
+				DRM_ERROR("Surface backup buffer is too small.\n");
+				vmw_dmabuf_unreference(&res->backup);
+				ret = -EINVAL;
+				goto out_unlock;
+			} else {
+				backup_handle = req->buffer_handle;
+			}
 		}
 	} else if (req->drm_surface_flags & drm_vmw_surface_flag_create_buffer)
 		ret = vmw_user_dmabuf_alloc(dev_priv, tfile,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-core.c linux-libre-4.9.52-gnu/drivers/hid/hid-core.c
--- linux-libre-4.9-gnu/drivers/hid/hid-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -728,7 +728,6 @@ static void hid_scan_collection(struct h
 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2 ||
 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP ||
 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP ||
-	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_3 ||
 	     hid->product == USB_DEVICE_ID_MS_POWER_COVER) &&
 	    hid->group == HID_GROUP_MULTITOUCH)
 		hid->group = HID_GROUP_GENERIC;
@@ -1984,7 +1983,6 @@ static const struct hid_device_id hid_ha
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1) },
@@ -2486,6 +2484,7 @@ static const struct hid_device_id hid_ig
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PETZL, USB_DEVICE_ID_PETZL_HEADLAMP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
 #if IS_ENABLED(CONFIG_MOUSE_SYNAPTICS_USB)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-corsair.c linux-libre-4.9.52-gnu/drivers/hid/hid-corsair.c
--- linux-libre-4.9-gnu/drivers/hid/hid-corsair.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-corsair.c	2017-09-27 08:40:05.000000000 -0400
@@ -148,26 +148,36 @@ static enum led_brightness k90_backlight
 	struct usb_interface *usbif = to_usb_interface(dev->parent);
 	struct usb_device *usbdev = interface_to_usbdev(usbif);
 	int brightness;
-	char data[8];
+	char *data;
+
+	data = kmalloc(8, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
 			      K90_REQUEST_STATUS,
 			      USB_DIR_IN | USB_TYPE_VENDOR |
 			      USB_RECIP_DEVICE, 0, 0, data, 8,
 			      USB_CTRL_SET_TIMEOUT);
-	if (ret < 0) {
+	if (ret < 5) {
 		dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
 			 ret);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 	brightness = data[4];
 	if (brightness < 0 || brightness > 3) {
 		dev_warn(dev,
 			 "Read invalid backlight brightness: %02hhx.\n",
 			 data[4]);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
-	return brightness;
+	ret = brightness;
+out:
+	kfree(data);
+
+	return ret;
 }
 
 static enum led_brightness k90_record_led_get(struct led_classdev *led_cdev)
@@ -253,17 +263,22 @@ static ssize_t k90_show_macro_mode(struc
 	struct usb_interface *usbif = to_usb_interface(dev->parent);
 	struct usb_device *usbdev = interface_to_usbdev(usbif);
 	const char *macro_mode;
-	char data[8];
+	char *data;
+
+	data = kmalloc(2, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
 			      K90_REQUEST_GET_MODE,
 			      USB_DIR_IN | USB_TYPE_VENDOR |
 			      USB_RECIP_DEVICE, 0, 0, data, 2,
 			      USB_CTRL_SET_TIMEOUT);
-	if (ret < 0) {
+	if (ret < 1) {
 		dev_warn(dev, "Failed to get K90 initial mode (error %d).\n",
 			 ret);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
 	switch (data[0]) {
@@ -277,10 +292,15 @@ static ssize_t k90_show_macro_mode(struc
 	default:
 		dev_warn(dev, "K90 in unknown mode: %02hhx.\n",
 			 data[0]);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", macro_mode);
+	ret = snprintf(buf, PAGE_SIZE, "%s\n", macro_mode);
+out:
+	kfree(data);
+
+	return ret;
 }
 
 static ssize_t k90_store_macro_mode(struct device *dev,
@@ -320,26 +340,36 @@ static ssize_t k90_show_current_profile(
 	struct usb_interface *usbif = to_usb_interface(dev->parent);
 	struct usb_device *usbdev = interface_to_usbdev(usbif);
 	int current_profile;
-	char data[8];
+	char *data;
+
+	data = kmalloc(8, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
 	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
 			      K90_REQUEST_STATUS,
 			      USB_DIR_IN | USB_TYPE_VENDOR |
 			      USB_RECIP_DEVICE, 0, 0, data, 8,
 			      USB_CTRL_SET_TIMEOUT);
-	if (ret < 0) {
+	if (ret < 8) {
 		dev_warn(dev, "Failed to get K90 initial state (error %d).\n",
 			 ret);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 	current_profile = data[7];
 	if (current_profile < 1 || current_profile > 3) {
 		dev_warn(dev, "Read invalid current profile: %02hhx.\n",
 			 data[7]);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", current_profile);
+	ret = snprintf(buf, PAGE_SIZE, "%d\n", current_profile);
+out:
+	kfree(data);
+
+	return ret;
 }
 
 static ssize_t k90_store_current_profile(struct device *dev,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-cp2112.c linux-libre-4.9.52-gnu/drivers/hid/hid-cp2112.c
--- linux-libre-4.9-gnu/drivers/hid/hid-cp2112.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-cp2112.c	2017-09-27 08:40:05.000000000 -0400
@@ -167,7 +167,7 @@ struct cp2112_device {
 	atomic_t xfer_avail;
 	struct gpio_chip gc;
 	u8 *in_out_buffer;
-	spinlock_t lock;
+	struct mutex lock;
 };
 
 static int gpio_push_pull = 0xFF;
@@ -179,10 +179,9 @@ static int cp2112_gpio_direction_input(s
 	struct cp2112_device *dev = gpiochip_get_data(chip);
 	struct hid_device *hdev = dev->hdev;
 	u8 *buf = dev->in_out_buffer;
-	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&dev->lock, flags);
+	mutex_lock(&dev->lock);
 
 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,
 				 CP2112_GPIO_CONFIG_LENGTH, HID_FEATURE_REPORT,
@@ -206,8 +205,8 @@ static int cp2112_gpio_direction_input(s
 	ret = 0;
 
 exit:
-	spin_unlock_irqrestore(&dev->lock, flags);
-	return ret <= 0 ? ret : -EIO;
+	mutex_unlock(&dev->lock);
+	return ret < 0 ? ret : -EIO;
 }
 
 static void cp2112_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
@@ -215,10 +214,9 @@ static void cp2112_gpio_set(struct gpio_
 	struct cp2112_device *dev = gpiochip_get_data(chip);
 	struct hid_device *hdev = dev->hdev;
 	u8 *buf = dev->in_out_buffer;
-	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&dev->lock, flags);
+	mutex_lock(&dev->lock);
 
 	buf[0] = CP2112_GPIO_SET;
 	buf[1] = value ? 0xff : 0;
@@ -230,7 +228,7 @@ static void cp2112_gpio_set(struct gpio_
 	if (ret < 0)
 		hid_err(hdev, "error setting GPIO values: %d\n", ret);
 
-	spin_unlock_irqrestore(&dev->lock, flags);
+	mutex_unlock(&dev->lock);
 }
 
 static int cp2112_gpio_get(struct gpio_chip *chip, unsigned offset)
@@ -238,10 +236,9 @@ static int cp2112_gpio_get(struct gpio_c
 	struct cp2112_device *dev = gpiochip_get_data(chip);
 	struct hid_device *hdev = dev->hdev;
 	u8 *buf = dev->in_out_buffer;
-	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&dev->lock, flags);
+	mutex_lock(&dev->lock);
 
 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_GET, buf,
 				 CP2112_GPIO_GET_LENGTH, HID_FEATURE_REPORT,
@@ -255,7 +252,7 @@ static int cp2112_gpio_get(struct gpio_c
 	ret = (buf[1] >> offset) & 1;
 
 exit:
-	spin_unlock_irqrestore(&dev->lock, flags);
+	mutex_unlock(&dev->lock);
 
 	return ret;
 }
@@ -266,10 +263,9 @@ static int cp2112_gpio_direction_output(
 	struct cp2112_device *dev = gpiochip_get_data(chip);
 	struct hid_device *hdev = dev->hdev;
 	u8 *buf = dev->in_out_buffer;
-	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&dev->lock, flags);
+	mutex_lock(&dev->lock);
 
 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,
 				 CP2112_GPIO_CONFIG_LENGTH, HID_FEATURE_REPORT,
@@ -290,7 +286,7 @@ static int cp2112_gpio_direction_output(
 		goto fail;
 	}
 
-	spin_unlock_irqrestore(&dev->lock, flags);
+	mutex_unlock(&dev->lock);
 
 	/*
 	 * Set gpio value when output direction is already set,
@@ -301,7 +297,7 @@ static int cp2112_gpio_direction_output(
 	return 0;
 
 fail:
-	spin_unlock_irqrestore(&dev->lock, flags);
+	mutex_unlock(&dev->lock);
 	return ret < 0 ? ret : -EIO;
 }
 
@@ -1057,7 +1053,7 @@ static int cp2112_probe(struct hid_devic
 	if (!dev->in_out_buffer)
 		return -ENOMEM;
 
-	spin_lock_init(&dev->lock);
+	mutex_init(&dev->lock);
 
 	ret = hid_parse(hdev);
 	if (ret) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-cypress.c linux-libre-4.9.52-gnu/drivers/hid/hid-cypress.c
--- linux-libre-4.9-gnu/drivers/hid/hid-cypress.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-cypress.c	2017-09-27 08:40:05.000000000 -0400
@@ -39,6 +39,9 @@ static __u8 *cp_report_fixup(struct hid_
 	if (!(quirks & CP_RDESC_SWAPPED_MIN_MAX))
 		return rdesc;
 
+	if (*rsize < 4)
+		return rdesc;
+
 	for (i = 0; i < *rsize - 4; i++)
 		if (rdesc[i] == 0x29 && rdesc[i + 2] == 0x19) {
 			rdesc[i] = 0x19;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-ids.h linux-libre-4.9.52-gnu/drivers/hid/hid-ids.h
--- linux-libre-4.9-gnu/drivers/hid/hid-ids.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-ids.h	2017-09-27 08:40:05.000000000 -0400
@@ -76,6 +76,9 @@
 #define USB_VENDOR_ID_ALPS_JP		0x044E
 #define HID_DEVICE_ID_ALPS_U1_DUAL	0x120B
 
+#define USB_VENDOR_ID_AMI		0x046b
+#define USB_DEVICE_ID_AMI_VIRT_KEYBOARD_AND_MOUSE	0xff10
+
 #define USB_VENDOR_ID_ANTON		0x1130
 #define USB_DEVICE_ID_ANTON_TOUCH_PAD	0x3101
 
@@ -308,6 +311,9 @@
 #define USB_VENDOR_ID_DELCOM		0x0fc5
 #define USB_DEVICE_ID_DELCOM_VISUAL_IND	0xb080
 
+#define USB_VENDOR_ID_DELL				0x413c
+#define USB_DEVICE_ID_DELL_PIXART_USB_OPTICAL_MOUSE	0x301a
+
 #define USB_VENDOR_ID_DELORME		0x1163
 #define USB_DEVICE_ID_DELORME_EARTHMATE	0x0100
 #define USB_DEVICE_ID_DELORME_EM_LT20	0x0200
@@ -315,8 +321,11 @@
 #define USB_VENDOR_ID_DMI		0x0c0b
 #define USB_DEVICE_ID_DMI_ENC		0x5fab
 
-#define USB_VENDOR_ID_DRAGONRISE	0x0079
-#define USB_DEVICE_ID_DRAGONRISE_WIIU	0x1800
+#define USB_VENDOR_ID_DRAGONRISE		0x0079
+#define USB_DEVICE_ID_DRAGONRISE_WIIU		0x1800
+#define USB_DEVICE_ID_DRAGONRISE_PS3		0x1801
+#define USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR	0x1803
+#define USB_DEVICE_ID_DRAGONRISE_GAMECUBE	0x1843
 
 #define USB_VENDOR_ID_DWAV		0x0eef
 #define USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER	0x0001
@@ -362,6 +371,9 @@
 #define USB_VENDOR_ID_FLATFROG		0x25b5
 #define USB_DEVICE_ID_MULTITOUCH_3200	0x0002
 
+#define USB_VENDOR_ID_FUTABA            0x0547
+#define USB_DEVICE_ID_LED_DISPLAY       0x7000
+
 #define USB_VENDOR_ID_ESSENTIAL_REALITY	0x0d7f
 #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
 
@@ -719,7 +731,6 @@
 #define USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2  0x07e2
 #define USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP 0x07dd
 #define USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP 0x07e9
-#define USB_DEVICE_ID_MS_TYPE_COVER_3    0x07de
 #define USB_DEVICE_ID_MS_POWER_COVER     0x07da
 
 #define USB_VENDOR_ID_MOJO		0x8282
@@ -808,6 +819,9 @@
 #define USB_VENDOR_ID_PETALYNX		0x18b1
 #define USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE	0x0037
 
+#define USB_VENDOR_ID_PETZL		0x2122
+#define USB_DEVICE_ID_PETZL_HEADLAMP	0x1234
+
 #define USB_VENDOR_ID_PHILIPS		0x0471
 #define USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE 0x0617
 
@@ -1034,6 +1048,10 @@
 #define USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH	0x0500
 #define USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET	0x0502
 
+#define	USB_VENDOR_ID_WEIDA		0x2575
+#define	USB_DEVICE_ID_WEIDA_8752	0xC300
+#define	USB_DEVICE_ID_WEIDA_8755	0xC301
+
 #define USB_VENDOR_ID_WISEGROUP		0x0925
 #define USB_DEVICE_ID_SMARTJOY_PLUS	0x0005
 #define USB_DEVICE_ID_SUPER_JOY_BOX_3	0x8888
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-lg.c linux-libre-4.9.52-gnu/drivers/hid/hid-lg.c
--- linux-libre-4.9-gnu/drivers/hid/hid-lg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-lg.c	2017-09-27 08:40:05.000000000 -0400
@@ -872,7 +872,7 @@ static const struct hid_device_id lg_dev
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG),
 		.driver_data = LG_NOGET | LG_FF4 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
-		.driver_data = LG_FF2 },
+		.driver_data = LG_NOGET | LG_FF2 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
 		.driver_data = LG_FF3 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-microsoft.c linux-libre-4.9.52-gnu/drivers/hid/hid-microsoft.c
--- linux-libre-4.9-gnu/drivers/hid/hid-microsoft.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-microsoft.c	2017-09-27 08:40:05.000000000 -0400
@@ -282,8 +282,6 @@ static const struct hid_device_id ms_dev
 		.driver_data = MS_HIDINPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP),
 		.driver_data = MS_HIDINPUT },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3),
-		.driver_data = MS_HIDINPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER),
 		.driver_data = MS_HIDINPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-multitouch.c linux-libre-4.9.52-gnu/drivers/hid/hid-multitouch.c
--- linux-libre-4.9-gnu/drivers/hid/hid-multitouch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-multitouch.c	2017-09-27 08:40:05.000000000 -0400
@@ -108,6 +108,7 @@ struct mt_device {
 	int cc_value_index;	/* contact count value index in the field */
 	unsigned last_slot_field;	/* the last field of a slot */
 	unsigned mt_report_id;	/* the report ID of the multitouch device */
+	unsigned long initial_quirks;	/* initial quirks state */
 	__s16 inputmode;	/* InputMode HID feature, -1 if non-existent */
 	__s16 inputmode_index;	/* InputMode HID feature index in the report */
 	__s16 maxcontact_report_id;	/* Maximum Contact Number HID feature,
@@ -318,13 +319,10 @@ static void mt_get_feature(struct hid_de
 	u8 *buf;
 
 	/*
-	 * Only fetch the feature report if initial reports are not already
-	 * been retrieved. Currently this is only done for Windows 8 touch
-	 * devices.
+	 * Do not fetch the feature report if the device has been explicitly
+	 * marked as non-capable.
 	 */
-	if (!(hdev->quirks & HID_QUIRK_NO_INIT_REPORTS))
-		return;
-	if (td->mtclass.name != MT_CLS_WIN_8)
+	if (td->initial_quirks & HID_QUIRK_NO_INIT_REPORTS)
 		return;
 
 	buf = hid_alloc_report_buf(report, GFP_KERNEL);
@@ -842,7 +840,9 @@ static int mt_input_mapping(struct hid_d
 	if (!td->mtclass.export_all_inputs &&
 	    field->application != HID_DG_TOUCHSCREEN &&
 	    field->application != HID_DG_PEN &&
-	    field->application != HID_DG_TOUCHPAD)
+	    field->application != HID_DG_TOUCHPAD &&
+	    field->application != HID_GD_KEYBOARD &&
+	    field->application != HID_CP_CONSUMER_CONTROL)
 		return -1;
 
 	/*
@@ -1083,36 +1083,6 @@ static int mt_probe(struct hid_device *h
 		}
 	}
 
-	/* This allows the driver to correctly support devices
-	 * that emit events over several HID messages.
-	 */
-	hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
-
-	/*
-	 * This allows the driver to handle different input sensors
-	 * that emits events through different reports on the same HID
-	 * device.
-	 */
-	hdev->quirks |= HID_QUIRK_MULTI_INPUT;
-	hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
-
-	/*
-	 * Handle special quirks for Windows 8 certified devices.
-	 */
-	if (id->group == HID_GROUP_MULTITOUCH_WIN_8)
-		/*
-		 * Some multitouch screens do not like to be polled for input
-		 * reports. Fortunately, the Win8 spec says that all touches
-		 * should be sent during each report, making the initialization
-		 * of input reports unnecessary.
-		 *
-		 * In addition some touchpads do not behave well if we read
-		 * all feature reports from them. Instead we prevent
-		 * initial report fetching and then selectively fetch each
-		 * report we are interested in.
-		 */
-		hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
-
 	td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
 	if (!td) {
 		dev_err(&hdev->dev, "cannot allocate multitouch data\n");
@@ -1136,6 +1106,39 @@ static int mt_probe(struct hid_device *h
 	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
 		td->serial_maybe = true;
 
+	/*
+	 * Store the initial quirk state
+	 */
+	td->initial_quirks = hdev->quirks;
+
+	/* This allows the driver to correctly support devices
+	 * that emit events over several HID messages.
+	 */
+	hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
+
+	/*
+	 * This allows the driver to handle different input sensors
+	 * that emits events through different reports on the same HID
+	 * device.
+	 */
+	hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+	hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
+
+	/*
+	 * Some multitouch screens do not like to be polled for input
+	 * reports. Fortunately, the Win8 spec says that all touches
+	 * should be sent during each report, making the initialization
+	 * of input reports unnecessary. For Win7 devices, well, let's hope
+	 * they will still be happy (this is only be a problem if a touch
+	 * was already there while probing the device).
+	 *
+	 * In addition some touchpads do not behave well if we read
+	 * all feature reports from them. Instead we prevent
+	 * initial report fetching and then selectively fetch each
+	 * report we are interested in.
+	 */
+	hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
+
 	ret = hid_parse(hdev);
 	if (ret != 0)
 		return ret;
@@ -1204,8 +1207,11 @@ static int mt_resume(struct hid_device *
 
 static void mt_remove(struct hid_device *hdev)
 {
+	struct mt_device *td = hid_get_drvdata(hdev);
+
 	sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
 	hid_hw_stop(hdev);
+	hdev->quirks = td->initial_quirks;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/hid-sensor-hub.c linux-libre-4.9.52-gnu/drivers/hid/hid-sensor-hub.c
--- linux-libre-4.9-gnu/drivers/hid/hid-sensor-hub.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/hid-sensor-hub.c	2017-09-27 08:40:05.000000000 -0400
@@ -212,7 +212,6 @@ int sensor_hub_set_feature(struct hid_se
 	__s32 value;
 	int ret = 0;
 
-	memset(buffer, 0, buffer_size);
 	mutex_lock(&data->mutex);
 	report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
 	if (!report || (field_index >= report->maxfield)) {
@@ -256,6 +255,8 @@ int sensor_hub_get_feature(struct hid_se
 	int buffer_index = 0;
 	int i;
 
+	memset(buffer, 0, buffer_size);
+
 	mutex_lock(&data->mutex);
 	report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT);
 	if (!report || (field_index >= report->maxfield) ||
@@ -795,6 +796,12 @@ static const struct hid_device_id sensor
 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_MICROSOFT,
 			USB_DEVICE_ID_MS_TYPE_COVER_2),
 			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_MICROSOFT,
+			0x07bd), /* Microsoft Surface 3 */
+			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_MICROCHIP,
+			0x0f01), /* MM7150 */
+			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_STM_0,
 			USB_DEVICE_ID_STM_HID_SENSOR),
 			.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/i2c-hid/i2c-hid.c linux-libre-4.9.52-gnu/drivers/hid/i2c-hid/i2c-hid.c
--- linux-libre-4.9-gnu/drivers/hid/i2c-hid/i2c-hid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/i2c-hid/i2c-hid.c	2017-09-27 08:40:05.000000000 -0400
@@ -41,6 +41,11 @@
 
 #include <linux/i2c/i2c-hid.h>
 
+#include "../hid-ids.h"
+
+/* quirks to control the device */
+#define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV	BIT(0)
+
 /* flags */
 #define I2C_HID_STARTED		0
 #define I2C_HID_RESET_PENDING	1
@@ -143,6 +148,7 @@ struct i2c_hid {
 	char			*argsbuf;	/* Command arguments buffer */
 
 	unsigned long		flags;		/* device flags */
+	unsigned long		quirks;		/* Various quirks */
 
 	wait_queue_head_t	wait;		/* For waiting the interrupt */
 	struct gpio_desc	*desc;
@@ -154,6 +160,39 @@ struct i2c_hid {
 	struct mutex		reset_lock;
 };
 
+static const struct i2c_hid_quirks {
+	__u16 idVendor;
+	__u16 idProduct;
+	__u32 quirks;
+} i2c_hid_quirks[] = {
+	{ USB_VENDOR_ID_WEIDA, USB_DEVICE_ID_WEIDA_8752,
+		I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV },
+	{ USB_VENDOR_ID_WEIDA, USB_DEVICE_ID_WEIDA_8755,
+		I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV },
+	{ 0, 0 }
+};
+
+/*
+ * i2c_hid_lookup_quirk: return any quirks associated with a I2C HID device
+ * @idVendor: the 16-bit vendor ID
+ * @idProduct: the 16-bit product ID
+ *
+ * Returns: a u32 quirks value.
+ */
+static u32 i2c_hid_lookup_quirk(const u16 idVendor, const u16 idProduct)
+{
+	u32 quirks = 0;
+	int n;
+
+	for (n = 0; i2c_hid_quirks[n].idVendor; n++)
+		if (i2c_hid_quirks[n].idVendor == idVendor &&
+		    (i2c_hid_quirks[n].idProduct == (__u16)HID_ANY_ID ||
+		     i2c_hid_quirks[n].idProduct == idProduct))
+			quirks = i2c_hid_quirks[n].quirks;
+
+	return quirks;
+}
+
 static int __i2c_hid_command(struct i2c_client *client,
 		const struct i2c_hid_cmd *command, u8 reportID,
 		u8 reportType, u8 *args, int args_len,
@@ -346,11 +385,27 @@ static int i2c_hid_set_power(struct i2c_
 
 	i2c_hid_dbg(ihid, "%s\n", __func__);
 
+	/*
+	 * Some devices require to send a command to wakeup before power on.
+	 * The call will get a return value (EREMOTEIO) but device will be
+	 * triggered and activated. After that, it goes like a normal device.
+	 */
+	if (power_state == I2C_HID_PWR_ON &&
+	    ihid->quirks & I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV) {
+		ret = i2c_hid_command(client, &hid_set_power_cmd, NULL, 0);
+
+		/* Device was already activated */
+		if (!ret)
+			goto set_pwr_exit;
+	}
+
 	ret = __i2c_hid_command(client, &hid_set_power_cmd, power_state,
 		0, NULL, 0, NULL, 0);
+
 	if (ret)
 		dev_err(&client->dev, "failed to change power setting.\n");
 
+set_pwr_exit:
 	return ret;
 }
 
@@ -372,6 +427,15 @@ static int i2c_hid_hwreset(struct i2c_cl
 	if (ret)
 		goto out_unlock;
 
+	/*
+	 * The HID over I2C specification states that if a DEVICE needs time
+	 * after the PWR_ON request, it should utilise CLOCK stretching.
+	 * However, it has been observered that the Windows driver provides a
+	 * 1ms sleep between the PWR_ON and RESET requests and that some devices
+	 * rely on this.
+	 */
+	usleep_range(1000, 5000);
+
 	i2c_hid_dbg(ihid, "resetting...\n");
 
 	ret = i2c_hid_command(client, &hid_reset_cmd, NULL, 0);
@@ -1050,6 +1114,8 @@ static int i2c_hid_probe(struct i2c_clie
 		 client->name, hid->vendor, hid->product);
 	strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys));
 
+	ihid->quirks = i2c_hid_lookup_quirk(hid->vendor, hid->product);
+
 	ret = hid_add_device(hid);
 	if (ret) {
 		if (ret != -ENODEV)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/usbhid/hid-quirks.c linux-libre-4.9.52-gnu/drivers/hid/usbhid/hid-quirks.c
--- linux-libre-4.9-gnu/drivers/hid/usbhid/hid-quirks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/usbhid/hid-quirks.c	2017-09-27 08:40:05.000000000 -0400
@@ -57,6 +57,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_AKAI, USB_DEVICE_ID_AKAI_MPKMINI2, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_AKAI_09E8, USB_DEVICE_ID_AKAI_09E8_MIDIMIX, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_AMI, USB_DEVICE_ID_AMI_VIRT_KEYBOARD_AND_MOUSE, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
@@ -80,12 +81,17 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K65RGB, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_STRAFE, HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVE_SB_OMNI_SURROUND_51, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_ELAN, HID_ANY_ID, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_FUTABA, USB_DEVICE_ID_LED_DISPLAY, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
@@ -102,7 +108,6 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP, HID_QUIRK_NO_INIT_REPORTS },
-	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_NEXIO, USB_DEVICE_ID_NEXIO_MULTITOUCH_PTI0750, HID_QUIRK_NO_INIT_REPORTS },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/wacom_sys.c linux-libre-4.9.52-gnu/drivers/hid/wacom_sys.c
--- linux-libre-4.9-gnu/drivers/hid/wacom_sys.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/wacom_sys.c	2017-09-27 08:40:05.000000000 -0400
@@ -2017,6 +2017,14 @@ static int wacom_parse_and_register(stru
 
 	wacom_update_name(wacom, wireless ? " (WL)" : "");
 
+	/* pen only Bamboo neither support touch nor pad */
+	if ((features->type == BAMBOO_PEN) &&
+	    ((features->device_type & WACOM_DEVICETYPE_TOUCH) ||
+	    (features->device_type & WACOM_DEVICETYPE_PAD))) {
+		error = -ENODEV;
+		goto fail;
+	}
+
 	error = wacom_add_shared_data(hdev);
 	if (error)
 		goto fail;
@@ -2063,14 +2071,6 @@ static int wacom_parse_and_register(stru
 		error = -ENODEV;
 		goto fail_quirks;
 	}
-
-	/* pen only Bamboo neither support touch nor pad */
-	if ((features->type == BAMBOO_PEN) &&
-	    ((features->device_type & WACOM_DEVICETYPE_TOUCH) ||
-	    (features->device_type & WACOM_DEVICETYPE_PAD))) {
-		error = -ENODEV;
-		goto fail_quirks;
-	}
 
 	if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR)
 		error = hid_hw_open(hdev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hid/wacom_wac.c linux-libre-4.9.52-gnu/drivers/hid/wacom_wac.c
--- linux-libre-4.9-gnu/drivers/hid/wacom_wac.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hid/wacom_wac.c	2017-09-27 08:40:05.000000000 -0400
@@ -164,19 +164,21 @@ static int wacom_pl_irq(struct wacom_wac
 		wacom->id[0] = STYLUS_DEVICE_ID;
 	}
 
-	pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
-	if (features->pressure_max > 255)
-		pressure = (pressure << 1) | ((data[4] >> 6) & 1);
-	pressure += (features->pressure_max + 1) / 2;
+	if (prox) {
+		pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
+		if (features->pressure_max > 255)
+			pressure = (pressure << 1) | ((data[4] >> 6) & 1);
+		pressure += (features->pressure_max + 1) / 2;
 
-	input_report_abs(input, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
-	input_report_abs(input, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
-	input_report_abs(input, ABS_PRESSURE, pressure);
+		input_report_abs(input, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
+		input_report_abs(input, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
+		input_report_abs(input, ABS_PRESSURE, pressure);
 
-	input_report_key(input, BTN_TOUCH, data[4] & 0x08);
-	input_report_key(input, BTN_STYLUS, data[4] & 0x10);
-	/* Only allow the stylus2 button to be reported for the pen tool. */
-	input_report_key(input, BTN_STYLUS2, (wacom->tool[0] == BTN_TOOL_PEN) && (data[4] & 0x20));
+		input_report_key(input, BTN_TOUCH, data[4] & 0x08);
+		input_report_key(input, BTN_STYLUS, data[4] & 0x10);
+		/* Only allow the stylus2 button to be reported for the pen tool. */
+		input_report_key(input, BTN_STYLUS2, (wacom->tool[0] == BTN_TOOL_PEN) && (data[4] & 0x20));
+	}
 
 	if (!prox)
 		wacom->id[0] = 0;
@@ -1398,37 +1400,38 @@ static int wacom_tpc_irq(struct wacom_wa
 {
 	unsigned char *data = wacom->data;
 
-	if (wacom->pen_input)
+	if (wacom->pen_input) {
 		dev_dbg(wacom->pen_input->dev.parent,
 			"%s: received report #%d\n", __func__, data[0]);
-	else if (wacom->touch_input)
+
+		if (len == WACOM_PKGLEN_PENABLED ||
+		    data[0] == WACOM_REPORT_PENABLED)
+			return wacom_tpc_pen(wacom);
+	}
+	else if (wacom->touch_input) {
 		dev_dbg(wacom->touch_input->dev.parent,
 			"%s: received report #%d\n", __func__, data[0]);
 
-	switch (len) {
-	case WACOM_PKGLEN_TPC1FG:
-		return wacom_tpc_single_touch(wacom, len);
-
-	case WACOM_PKGLEN_TPC2FG:
-		return wacom_tpc_mt_touch(wacom);
+		switch (len) {
+		case WACOM_PKGLEN_TPC1FG:
+			return wacom_tpc_single_touch(wacom, len);
 
-	case WACOM_PKGLEN_PENABLED:
-		return wacom_tpc_pen(wacom);
+		case WACOM_PKGLEN_TPC2FG:
+			return wacom_tpc_mt_touch(wacom);
 
-	default:
-		switch (data[0]) {
-		case WACOM_REPORT_TPC1FG:
-		case WACOM_REPORT_TPCHID:
-		case WACOM_REPORT_TPCST:
-		case WACOM_REPORT_TPC1FGE:
-			return wacom_tpc_single_touch(wacom, len);
+		default:
+			switch (data[0]) {
+			case WACOM_REPORT_TPC1FG:
+			case WACOM_REPORT_TPCHID:
+			case WACOM_REPORT_TPCST:
+			case WACOM_REPORT_TPC1FGE:
+				return wacom_tpc_single_touch(wacom, len);
 
-		case WACOM_REPORT_TPCMT:
-		case WACOM_REPORT_TPCMT2:
-			return wacom_mt_touch(wacom);
+			case WACOM_REPORT_TPCMT:
+			case WACOM_REPORT_TPCMT2:
+				return wacom_mt_touch(wacom);
 
-		case WACOM_REPORT_PENABLED:
-			return wacom_tpc_pen(wacom);
+			}
 		}
 	}
 
@@ -2894,6 +2897,9 @@ int wacom_setup_pad_input_capabilities(s
 {
 	struct wacom_features *features = &wacom_wac->features;
 
+	if ((features->type == HID_GENERIC) && features->numbered_buttons > 0)
+		features->device_type |= WACOM_DEVICETYPE_PAD;
+
 	if (!(features->device_type & WACOM_DEVICETYPE_PAD))
 		return -ENODEV;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/channel.c linux-libre-4.9.52-gnu/drivers/hv/channel.c
--- linux-libre-4.9-gnu/drivers/hv/channel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/channel.c	2017-09-27 08:40:05.000000000 -0400
@@ -39,7 +39,7 @@
  * vmbus_setevent- Trigger an event notification on the specified
  * channel.
  */
-static void vmbus_setevent(struct vmbus_channel *channel)
+void vmbus_setevent(struct vmbus_channel *channel)
 {
 	struct hv_monitor_page *monitorpage;
 
@@ -65,6 +65,7 @@ static void vmbus_setevent(struct vmbus_
 		vmbus_set_event(channel);
 	}
 }
+EXPORT_SYMBOL_GPL(vmbus_setevent);
 
 /*
  * vmbus_open - Open the specified channel.
@@ -156,6 +157,7 @@ int vmbus_open(struct vmbus_channel *new
 	}
 
 	init_completion(&open_info->waitevent);
+	open_info->waiting_channel = newchannel;
 
 	open_msg = (struct vmbus_channel_open_channel *)open_info->msg;
 	open_msg->header.msgtype = CHANNELMSG_OPENCHANNEL;
@@ -180,7 +182,7 @@ int vmbus_open(struct vmbus_channel *new
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
 
 	ret = vmbus_post_msg(open_msg,
-			       sizeof(struct vmbus_channel_open_channel));
+			     sizeof(struct vmbus_channel_open_channel), true);
 
 	if (ret != 0) {
 		err = ret;
@@ -193,6 +195,11 @@ int vmbus_open(struct vmbus_channel *new
 	list_del(&open_info->msglistentry);
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
 
+	if (newchannel->rescind) {
+		err = -ENODEV;
+		goto error_free_gpadl;
+	}
+
 	if (open_info->response.open_result.status) {
 		err = -EAGAIN;
 		goto error_free_gpadl;
@@ -232,7 +239,7 @@ int vmbus_send_tl_connect_request(const
 	conn_msg.guest_endpoint_id = *shv_guest_servie_id;
 	conn_msg.host_service_id = *shv_host_servie_id;
 
-	return vmbus_post_msg(&conn_msg, sizeof(conn_msg));
+	return vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);
 }
 EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);
 
@@ -404,6 +411,7 @@ int vmbus_establish_gpadl(struct vmbus_c
 		return ret;
 
 	init_completion(&msginfo->waitevent);
+	msginfo->waiting_channel = channel;
 
 	gpadlmsg = (struct vmbus_channel_gpadl_header *)msginfo->msg;
 	gpadlmsg->header.msgtype = CHANNELMSG_GPADL_HEADER;
@@ -418,7 +426,7 @@ int vmbus_establish_gpadl(struct vmbus_c
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
 
 	ret = vmbus_post_msg(gpadlmsg, msginfo->msgsize -
-			       sizeof(*msginfo));
+			     sizeof(*msginfo), true);
 	if (ret != 0)
 		goto cleanup;
 
@@ -432,14 +440,19 @@ int vmbus_establish_gpadl(struct vmbus_c
 		gpadl_body->gpadl = next_gpadl_handle;
 
 		ret = vmbus_post_msg(gpadl_body,
-				     submsginfo->msgsize -
-				     sizeof(*submsginfo));
+				     submsginfo->msgsize - sizeof(*submsginfo),
+				     true);
 		if (ret != 0)
 			goto cleanup;
 
 	}
 	wait_for_completion(&msginfo->waitevent);
 
+	if (channel->rescind) {
+		ret = -ENODEV;
+		goto cleanup;
+	}
+
 	/* At this point, we received the gpadl created msg */
 	*gpadl_handle = gpadlmsg->gpadl;
 
@@ -473,6 +486,7 @@ int vmbus_teardown_gpadl(struct vmbus_ch
 		return -ENOMEM;
 
 	init_completion(&info->waitevent);
+	info->waiting_channel = channel;
 
 	msg = (struct vmbus_channel_gpadl_teardown *)info->msg;
 
@@ -484,8 +498,8 @@ int vmbus_teardown_gpadl(struct vmbus_ch
 	list_add_tail(&info->msglistentry,
 		      &vmbus_connection.chn_msg_list);
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
-	ret = vmbus_post_msg(msg,
-			       sizeof(struct vmbus_channel_gpadl_teardown));
+	ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_gpadl_teardown),
+			     true);
 
 	if (ret)
 		goto post_msg_err;
@@ -493,6 +507,14 @@ int vmbus_teardown_gpadl(struct vmbus_ch
 	wait_for_completion(&info->waitevent);
 
 post_msg_err:
+	/*
+	 * If the channel has been rescinded;
+	 * we will be awakened by the rescind
+	 * handler; set the error code to zero so we don't leak memory.
+	 */
+	if (channel->rescind)
+		ret = 0;
+
 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
 	list_del(&info->msglistentry);
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
@@ -556,7 +578,8 @@ static int vmbus_close_internal(struct v
 	msg->header.msgtype = CHANNELMSG_CLOSECHANNEL;
 	msg->child_relid = channel->offermsg.child_relid;
 
-	ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_close_channel));
+	ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_close_channel),
+			     true);
 
 	if (ret) {
 		pr_err("Close failed: close post msg return is %d\n", ret);
@@ -635,8 +658,6 @@ int vmbus_sendpacket_ctl(struct vmbus_ch
 	u32 packetlen_aligned = ALIGN(packetlen, sizeof(u64));
 	struct kvec bufferlist[3];
 	u64 aligned_data = 0;
-	int ret;
-	bool signal = false;
 	bool lock = channel->acquire_ring_lock;
 	int num_vecs = ((bufferlen != 0) ? 3 : 1);
 
@@ -656,33 +677,9 @@ int vmbus_sendpacket_ctl(struct vmbus_ch
 	bufferlist[2].iov_base = &aligned_data;
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
-	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, num_vecs,
-				  &signal, lock, channel->signal_policy);
-
-	/*
-	 * Signalling the host is conditional on many factors:
-	 * 1. The ring state changed from being empty to non-empty.
-	 *    This is tracked by the variable "signal".
-	 * 2. The variable kick_q tracks if more data will be placed
-	 *    on the ring. We will not signal if more data is
-	 *    to be placed.
-	 *
-	 * Based on the channel signal state, we will decide
-	 * which signaling policy will be applied.
-	 *
-	 * If we cannot write to the ring-buffer; signal the host
-	 * even if we may not have written anything. This is a rare
-	 * enough condition that it should not matter.
-	 * NOTE: in this case, the hvsock channel is an exception, because
-	 * it looks the host side's hvsock implementation has a throttling
-	 * mechanism which can hurt the performance otherwise.
-	 */
-
-	if (((ret == 0) && kick_q && signal) ||
-	    (ret && !is_hvsock_channel(channel)))
-		vmbus_setevent(channel);
+	return hv_ringbuffer_write(channel, bufferlist, num_vecs,
+				   lock, kick_q);
 
-	return ret;
 }
 EXPORT_SYMBOL(vmbus_sendpacket_ctl);
 
@@ -723,7 +720,6 @@ int vmbus_sendpacket_pagebuffer_ctl(stru
 				     u32 flags,
 				     bool kick_q)
 {
-	int ret;
 	int i;
 	struct vmbus_channel_packet_page_buffer desc;
 	u32 descsize;
@@ -731,7 +727,6 @@ int vmbus_sendpacket_pagebuffer_ctl(stru
 	u32 packetlen_aligned;
 	struct kvec bufferlist[3];
 	u64 aligned_data = 0;
-	bool signal = false;
 	bool lock = channel->acquire_ring_lock;
 
 	if (pagecount > MAX_PAGE_BUFFER_COUNT)
@@ -769,29 +764,8 @@ int vmbus_sendpacket_pagebuffer_ctl(stru
 	bufferlist[2].iov_base = &aligned_data;
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
-	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
-				  &signal, lock, channel->signal_policy);
-
-	/*
-	 * Signalling the host is conditional on many factors:
-	 * 1. The ring state changed from being empty to non-empty.
-	 *    This is tracked by the variable "signal".
-	 * 2. The variable kick_q tracks if more data will be placed
-	 *    on the ring. We will not signal if more data is
-	 *    to be placed.
-	 *
-	 * Based on the channel signal state, we will decide
-	 * which signaling policy will be applied.
-	 *
-	 * If we cannot write to the ring-buffer; signal the host
-	 * even if we may not have written anything. This is a rare
-	 * enough condition that it should not matter.
-	 */
-
-	if (((ret == 0) && kick_q && signal) || (ret))
-		vmbus_setevent(channel);
-
-	return ret;
+	return hv_ringbuffer_write(channel, bufferlist, 3,
+				   lock, kick_q);
 }
 EXPORT_SYMBOL_GPL(vmbus_sendpacket_pagebuffer_ctl);
 
@@ -822,12 +796,10 @@ int vmbus_sendpacket_mpb_desc(struct vmb
 			      u32 desc_size,
 			      void *buffer, u32 bufferlen, u64 requestid)
 {
-	int ret;
 	u32 packetlen;
 	u32 packetlen_aligned;
 	struct kvec bufferlist[3];
 	u64 aligned_data = 0;
-	bool signal = false;
 	bool lock = channel->acquire_ring_lock;
 
 	packetlen = desc_size + bufferlen;
@@ -848,13 +820,8 @@ int vmbus_sendpacket_mpb_desc(struct vmb
 	bufferlist[2].iov_base = &aligned_data;
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
-	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
-				  &signal, lock, channel->signal_policy);
-
-	if (ret == 0 && signal)
-		vmbus_setevent(channel);
-
-	return ret;
+	return hv_ringbuffer_write(channel, bufferlist, 3,
+				   lock, true);
 }
 EXPORT_SYMBOL_GPL(vmbus_sendpacket_mpb_desc);
 
@@ -866,14 +833,12 @@ int vmbus_sendpacket_multipagebuffer(str
 				struct hv_multipage_buffer *multi_pagebuffer,
 				void *buffer, u32 bufferlen, u64 requestid)
 {
-	int ret;
 	struct vmbus_channel_packet_multipage_buffer desc;
 	u32 descsize;
 	u32 packetlen;
 	u32 packetlen_aligned;
 	struct kvec bufferlist[3];
 	u64 aligned_data = 0;
-	bool signal = false;
 	bool lock = channel->acquire_ring_lock;
 	u32 pfncount = NUM_PAGES_SPANNED(multi_pagebuffer->offset,
 					 multi_pagebuffer->len);
@@ -913,13 +878,8 @@ int vmbus_sendpacket_multipagebuffer(str
 	bufferlist[2].iov_base = &aligned_data;
 	bufferlist[2].iov_len = (packetlen_aligned - packetlen);
 
-	ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
-				  &signal, lock, channel->signal_policy);
-
-	if (ret == 0 && signal)
-		vmbus_setevent(channel);
-
-	return ret;
+	return hv_ringbuffer_write(channel, bufferlist, 3,
+				   lock, true);
 }
 EXPORT_SYMBOL_GPL(vmbus_sendpacket_multipagebuffer);
 
@@ -941,16 +901,9 @@ __vmbus_recvpacket(struct vmbus_channel
 		   u32 bufferlen, u32 *buffer_actual_len, u64 *requestid,
 		   bool raw)
 {
-	int ret;
-	bool signal = false;
-
-	ret = hv_ringbuffer_read(&channel->inbound, buffer, bufferlen,
-				 buffer_actual_len, requestid, &signal, raw);
-
-	if (signal)
-		vmbus_setevent(channel);
+	return hv_ringbuffer_read(channel, buffer, bufferlen,
+				  buffer_actual_len, requestid, raw);
 
-	return ret;
 }
 
 int vmbus_recvpacket(struct vmbus_channel *channel, void *buffer,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/channel_mgmt.c linux-libre-4.9.52-gnu/drivers/hv/channel_mgmt.c
--- linux-libre-4.9-gnu/drivers/hv/channel_mgmt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/channel_mgmt.c	2017-09-27 08:40:05.000000000 -0400
@@ -147,6 +147,29 @@ static const struct {
 	{ HV_RDV_GUID	},
 };
 
+/*
+ * The rescinded channel may be blocked waiting for a response from the host;
+ * take care of that.
+ */
+static void vmbus_rescind_cleanup(struct vmbus_channel *channel)
+{
+	struct vmbus_channel_msginfo *msginfo;
+	unsigned long flags;
+
+
+	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
+
+	list_for_each_entry(msginfo, &vmbus_connection.chn_msg_list,
+				msglistentry) {
+
+		if (msginfo->waiting_channel == channel) {
+			complete(&msginfo->waitevent);
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
+}
+
 static bool is_unsupported_vmbus_devs(const uuid_le *guid)
 {
 	int i;
@@ -321,7 +344,8 @@ static void vmbus_release_relid(u32 reli
 	memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
 	msg.child_relid = relid;
 	msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
-	vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released));
+	vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released),
+		       true);
 }
 
 void hv_event_tasklet_disable(struct vmbus_channel *channel)
@@ -389,6 +413,7 @@ void vmbus_free_channels(void)
 {
 	struct vmbus_channel *channel, *tmp;
 
+	mutex_lock(&vmbus_connection.channel_mutex);
 	list_for_each_entry_safe(channel, tmp, &vmbus_connection.chn_list,
 		listentry) {
 		/* hv_process_channel_removal() needs this */
@@ -396,6 +421,7 @@ void vmbus_free_channels(void)
 
 		vmbus_device_unregister(channel->device_obj);
 	}
+	mutex_unlock(&vmbus_connection.channel_mutex);
 }
 
 /*
@@ -447,8 +473,6 @@ static void vmbus_process_offer(struct v
 	}
 
 	dev_type = hv_get_dev_type(newchannel);
-	if (dev_type == HV_NIC)
-		set_channel_signal_state(newchannel, HV_SIGNAL_POLICY_EXPLICIT);
 
 	init_vp_index(newchannel, dev_type);
 
@@ -728,7 +752,8 @@ void vmbus_initiate_unload(bool crash)
 	init_completion(&vmbus_connection.unload_event);
 	memset(&hdr, 0, sizeof(struct vmbus_channel_message_header));
 	hdr.msgtype = CHANNELMSG_UNLOAD;
-	vmbus_post_msg(&hdr, sizeof(struct vmbus_channel_message_header));
+	vmbus_post_msg(&hdr, sizeof(struct vmbus_channel_message_header),
+		       !crash);
 
 	/*
 	 * vmbus_initiate_unload() is also called on crash and the crash can be
@@ -754,6 +779,7 @@ static void vmbus_onoffer(struct vmbus_c
 	/* Allocate the channel object and save this offer. */
 	newchannel = alloc_channel();
 	if (!newchannel) {
+		vmbus_release_relid(offer->child_relid);
 		pr_err("Unable to allocate channel object\n");
 		return;
 	}
@@ -823,6 +849,8 @@ static void vmbus_onoffer_rescind(struct
 	channel->rescind = true;
 	spin_unlock_irqrestore(&channel->lock, flags);
 
+	vmbus_rescind_cleanup(channel);
+
 	if (channel->device_obj) {
 		if (channel->chn_rescind_callback) {
 			channel->chn_rescind_callback(channel);
@@ -1116,8 +1144,8 @@ int vmbus_request_offers(void)
 	msg->msgtype = CHANNELMSG_REQUESTOFFERS;
 
 
-	ret = vmbus_post_msg(msg,
-			       sizeof(struct vmbus_channel_message_header));
+	ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_message_header),
+			     true);
 	if (ret != 0) {
 		pr_err("Unable to request offers - %d\n", ret);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/connection.c linux-libre-4.9.52-gnu/drivers/hv/connection.c
--- linux-libre-4.9-gnu/drivers/hv/connection.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/connection.c	2017-09-27 08:40:05.000000000 -0400
@@ -110,7 +110,8 @@ static int vmbus_negotiate_version(struc
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
 
 	ret = vmbus_post_msg(msg,
-			       sizeof(struct vmbus_channel_initiate_contact));
+			     sizeof(struct vmbus_channel_initiate_contact),
+			     true);
 	if (ret != 0) {
 		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
 		list_del(&msginfo->msglistentry);
@@ -434,7 +435,7 @@ void vmbus_on_event(unsigned long data)
 /*
  * vmbus_post_msg - Send a msg on the vmbus's message connection
  */
-int vmbus_post_msg(void *buffer, size_t buflen)
+int vmbus_post_msg(void *buffer, size_t buflen, bool can_sleep)
 {
 	union hv_connection_id conn_id;
 	int ret = 0;
@@ -449,7 +450,7 @@ int vmbus_post_msg(void *buffer, size_t
 	 * insufficient resources. Retry the operation a couple of
 	 * times before giving up.
 	 */
-	while (retries < 20) {
+	while (retries < 100) {
 		ret = hv_post_message(conn_id, 1, buffer, buflen);
 
 		switch (ret) {
@@ -472,8 +473,14 @@ int vmbus_post_msg(void *buffer, size_t
 		}
 
 		retries++;
-		udelay(usec);
-		if (usec < 2048)
+		if (can_sleep && usec > 1000)
+			msleep(usec / 1000);
+		else if (usec < MAX_UDELAY_MS * 1000)
+			udelay(usec);
+		else
+			mdelay(usec / 1000);
+
+		if (usec < 256000)
 			usec *= 2;
 	}
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/hv.c linux-libre-4.9.52-gnu/drivers/hv/hv.c
--- linux-libre-4.9-gnu/drivers/hv/hv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/hv.c	2017-09-27 08:40:05.000000000 -0400
@@ -220,7 +220,7 @@ int hv_init(void)
 	/* See if the hypercall page is already set */
 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
 
-	virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
+	virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
 
 	if (!virtaddr)
 		goto cleanup;
@@ -309,9 +309,10 @@ void hv_cleanup(bool crash)
 
 		hypercall_msr.as_uint64 = 0;
 		wrmsrl(HV_X64_MSR_REFERENCE_TSC, hypercall_msr.as_uint64);
-		if (!crash)
+		if (!crash) {
 			vfree(hv_context.tsc_page);
-		hv_context.tsc_page = NULL;
+			hv_context.tsc_page = NULL;
+		}
 	}
 #endif
 }
@@ -411,7 +412,7 @@ int hv_synic_alloc(void)
 		goto err;
 	}
 
-	for_each_online_cpu(cpu) {
+	for_each_present_cpu(cpu) {
 		hv_context.event_dpc[cpu] = kmalloc(size, GFP_ATOMIC);
 		if (hv_context.event_dpc[cpu] == NULL) {
 			pr_err("Unable to allocate event dpc\n");
@@ -457,6 +458,8 @@ int hv_synic_alloc(void)
 			pr_err("Unable to allocate post msg page\n");
 			goto err;
 		}
+
+		INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
 	}
 
 	return 0;
@@ -482,7 +485,7 @@ void hv_synic_free(void)
 	int cpu;
 
 	kfree(hv_context.hv_numa_map);
-	for_each_online_cpu(cpu)
+	for_each_present_cpu(cpu)
 		hv_synic_free_cpu(cpu);
 }
 
@@ -552,8 +555,6 @@ void hv_synic_init(void *arg)
 	rdmsrl(HV_X64_MSR_VP_INDEX, vp_index);
 	hv_context.vp_index[cpu] = (u32)vp_index;
 
-	INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
-
 	/*
 	 * Register the per-cpu clockevent source.
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/hv_fcopy.c linux-libre-4.9.52-gnu/drivers/hv/hv_fcopy.c
--- linux-libre-4.9-gnu/drivers/hv/hv_fcopy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/hv_fcopy.c	2017-09-27 08:40:05.000000000 -0400
@@ -61,6 +61,7 @@ static DECLARE_WORK(fcopy_send_work, fco
 static const char fcopy_devname[] = "vmbus/hv_fcopy";
 static u8 *recv_buffer;
 static struct hvutil_transport *hvt;
+static struct completion release_event;
 /*
  * This state maintains the version number registered by the daemon.
  */
@@ -317,6 +318,7 @@ static void fcopy_on_reset(void)
 
 	if (cancel_delayed_work_sync(&fcopy_timeout_work))
 		fcopy_respond_to_host(HV_E_FAIL);
+	complete(&release_event);
 }
 
 int hv_fcopy_init(struct hv_util_service *srv)
@@ -324,6 +326,7 @@ int hv_fcopy_init(struct hv_util_service
 	recv_buffer = srv->recv_buffer;
 	fcopy_transaction.recv_channel = srv->channel;
 
+	init_completion(&release_event);
 	/*
 	 * When this driver loads, the user level daemon that
 	 * processes the host requests may not yet be running.
@@ -345,4 +348,5 @@ void hv_fcopy_deinit(void)
 	fcopy_transaction.state = HVUTIL_DEVICE_DYING;
 	cancel_delayed_work_sync(&fcopy_timeout_work);
 	hvutil_transport_destroy(hvt);
+	wait_for_completion(&release_event);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/hv_kvp.c linux-libre-4.9.52-gnu/drivers/hv/hv_kvp.c
--- linux-libre-4.9-gnu/drivers/hv/hv_kvp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/hv_kvp.c	2017-09-27 08:40:05.000000000 -0400
@@ -88,6 +88,7 @@ static DECLARE_WORK(kvp_sendkey_work, kv
 static const char kvp_devname[] = "vmbus/hv_kvp";
 static u8 *recv_buffer;
 static struct hvutil_transport *hvt;
+static struct completion release_event;
 /*
  * Register the kernel component with the user-level daemon.
  * As part of this registration, pass the LIC version number.
@@ -716,6 +717,7 @@ static void kvp_on_reset(void)
 	if (cancel_delayed_work_sync(&kvp_timeout_work))
 		kvp_respond_to_host(NULL, HV_E_FAIL);
 	kvp_transaction.state = HVUTIL_DEVICE_INIT;
+	complete(&release_event);
 }
 
 int
@@ -724,6 +726,7 @@ hv_kvp_init(struct hv_util_service *srv)
 	recv_buffer = srv->recv_buffer;
 	kvp_transaction.recv_channel = srv->channel;
 
+	init_completion(&release_event);
 	/*
 	 * When this driver loads, the user level daemon that
 	 * processes the host requests may not yet be running.
@@ -747,4 +750,5 @@ void hv_kvp_deinit(void)
 	cancel_delayed_work_sync(&kvp_timeout_work);
 	cancel_work_sync(&kvp_sendkey_work);
 	hvutil_transport_destroy(hvt);
+	wait_for_completion(&release_event);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/hv_snapshot.c linux-libre-4.9.52-gnu/drivers/hv/hv_snapshot.c
--- linux-libre-4.9-gnu/drivers/hv/hv_snapshot.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/hv_snapshot.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,6 +66,7 @@ static int dm_reg_value;
 static const char vss_devname[] = "vmbus/hv_vss";
 static __u8 *recv_buffer;
 static struct hvutil_transport *hvt;
+static struct completion release_event;
 
 static void vss_timeout_func(struct work_struct *dummy);
 static void vss_handle_request(struct work_struct *dummy);
@@ -330,11 +331,13 @@ static void vss_on_reset(void)
 	if (cancel_delayed_work_sync(&vss_timeout_work))
 		vss_respond_to_host(HV_E_FAIL);
 	vss_transaction.state = HVUTIL_DEVICE_INIT;
+	complete(&release_event);
 }
 
 int
 hv_vss_init(struct hv_util_service *srv)
 {
+	init_completion(&release_event);
 	if (vmbus_proto_version < VERSION_WIN8_1) {
 		pr_warn("Integration service 'Backup (volume snapshot)'"
 			" not supported on this host version.\n");
@@ -365,4 +368,5 @@ void hv_vss_deinit(void)
 	cancel_delayed_work_sync(&vss_timeout_work);
 	cancel_work_sync(&vss_handle_request_work);
 	hvutil_transport_destroy(hvt);
+	wait_for_completion(&release_event);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/hyperv_vmbus.h linux-libre-4.9.52-gnu/drivers/hv/hyperv_vmbus.h
--- linux-libre-4.9-gnu/drivers/hv/hyperv_vmbus.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/hyperv_vmbus.h	2017-09-27 08:40:05.000000000 -0400
@@ -527,14 +527,14 @@ int hv_ringbuffer_init(struct hv_ring_bu
 
 void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info);
 
-int hv_ringbuffer_write(struct hv_ring_buffer_info *ring_info,
+int hv_ringbuffer_write(struct vmbus_channel *channel,
 		    struct kvec *kv_list,
-		    u32 kv_count, bool *signal, bool lock,
-		    enum hv_signal_policy policy);
+		    u32 kv_count, bool lock,
+		    bool kick_q);
 
-int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
+int hv_ringbuffer_read(struct vmbus_channel *channel,
 		       void *buffer, u32 buflen, u32 *buffer_actual_len,
-		       u64 *requestid, bool *signal, bool raw);
+		       u64 *requestid, bool raw);
 
 void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
 			    struct hv_ring_buffer_debug_info *debug_info);
@@ -683,7 +683,7 @@ void vmbus_free_channels(void);
 int vmbus_connect(void);
 void vmbus_disconnect(void);
 
-int vmbus_post_msg(void *buffer, size_t buflen);
+int vmbus_post_msg(void *buffer, size_t buflen, bool can_sleep);
 
 void vmbus_on_event(unsigned long data);
 void vmbus_on_msg_dpc(unsigned long data);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hv/ring_buffer.c linux-libre-4.9.52-gnu/drivers/hv/ring_buffer.c
--- linux-libre-4.9-gnu/drivers/hv/ring_buffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hv/ring_buffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,21 +66,25 @@ u32 hv_end_read(struct hv_ring_buffer_in
  *	   once the ring buffer is empty, it will clear the
  *	   interrupt_mask and re-check to see if new data has
  *	   arrived.
+ *
+ * KYS: Oct. 30, 2016:
+ * It looks like Windows hosts have logic to deal with DOS attacks that
+ * can be triggered if it receives interrupts when it is not expecting
+ * the interrupt. The host expects interrupts only when the ring
+ * transitions from empty to non-empty (or full to non full on the guest
+ * to host ring).
+ * So, base the signaling decision solely on the ring state until the
+ * host logic is fixed.
  */
 
-static bool hv_need_to_signal(u32 old_write, struct hv_ring_buffer_info *rbi,
-			      enum hv_signal_policy policy)
+static void hv_signal_on_write(u32 old_write, struct vmbus_channel *channel,
+			       bool kick_q)
 {
+	struct hv_ring_buffer_info *rbi = &channel->outbound;
+
 	virt_mb();
 	if (READ_ONCE(rbi->ring_buffer->interrupt_mask))
-		return false;
-
-	/*
-	 * When the client wants to control signaling,
-	 * we only honour the host interrupt mask.
-	 */
-	if (policy == HV_SIGNAL_POLICY_EXPLICIT)
-		return true;
+		return;
 
 	/* check interrupt_mask before read_index */
 	virt_rmb();
@@ -89,9 +93,9 @@ static bool hv_need_to_signal(u32 old_wr
 	 * ring transitions from being empty to non-empty.
 	 */
 	if (old_write == READ_ONCE(rbi->ring_buffer->read_index))
-		return true;
+		vmbus_setevent(channel);
 
-	return false;
+	return;
 }
 
 /* Get the next write location for the specified ring buffer. */
@@ -280,9 +284,9 @@ void hv_ringbuffer_cleanup(struct hv_rin
 }
 
 /* Write to the ring buffer. */
-int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
-		    struct kvec *kv_list, u32 kv_count, bool *signal, bool lock,
-		    enum hv_signal_policy policy)
+int hv_ringbuffer_write(struct vmbus_channel *channel,
+		    struct kvec *kv_list, u32 kv_count, bool lock,
+		    bool kick_q)
 {
 	int i = 0;
 	u32 bytes_avail_towrite;
@@ -292,6 +296,10 @@ int hv_ringbuffer_write(struct hv_ring_b
 	u32 old_write;
 	u64 prev_indices = 0;
 	unsigned long flags = 0;
+	struct hv_ring_buffer_info *outring_info = &channel->outbound;
+
+	if (channel->rescind)
+		return -ENODEV;
 
 	for (i = 0; i < kv_count; i++)
 		totalbytes_towrite += kv_list[i].iov_len;
@@ -344,13 +352,17 @@ int hv_ringbuffer_write(struct hv_ring_b
 	if (lock)
 		spin_unlock_irqrestore(&outring_info->ring_lock, flags);
 
-	*signal = hv_need_to_signal(old_write, outring_info, policy);
+	hv_signal_on_write(old_write, channel, kick_q);
+
+	if (channel->rescind)
+		return -ENODEV;
+
 	return 0;
 }
 
-int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
+int hv_ringbuffer_read(struct vmbus_channel *channel,
 		       void *buffer, u32 buflen, u32 *buffer_actual_len,
-		       u64 *requestid, bool *signal, bool raw)
+		       u64 *requestid, bool raw)
 {
 	u32 bytes_avail_toread;
 	u32 next_read_location = 0;
@@ -359,6 +371,7 @@ int hv_ringbuffer_read(struct hv_ring_bu
 	u32 offset;
 	u32 packetlen;
 	int ret = 0;
+	struct hv_ring_buffer_info *inring_info = &channel->inbound;
 
 	if (buflen <= 0)
 		return -EINVAL;
@@ -377,6 +390,7 @@ int hv_ringbuffer_read(struct hv_ring_bu
 		return ret;
 	}
 
+	init_cached_read_index(channel);
 	next_read_location = hv_get_next_read_location(inring_info);
 	next_read_location = hv_copyfrom_ringbuffer(inring_info, &desc,
 						    sizeof(desc),
@@ -416,7 +430,7 @@ int hv_ringbuffer_read(struct hv_ring_bu
 	/* Update the read index */
 	hv_set_next_read_location(inring_info, next_read_location);
 
-	*signal = hv_need_to_signal_on_read(inring_info);
+	hv_signal_on_read(channel);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwmon/amc6821.c linux-libre-4.9.52-gnu/drivers/hwmon/amc6821.c
--- linux-libre-4.9-gnu/drivers/hwmon/amc6821.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwmon/amc6821.c	2017-09-27 08:40:05.000000000 -0400
@@ -188,8 +188,8 @@ static struct amc6821_data *amc6821_upda
 			!data->valid) {
 
 		for (i = 0; i < TEMP_IDX_LEN; i++)
-			data->temp[i] = i2c_smbus_read_byte_data(client,
-				temp_reg[i]);
+			data->temp[i] = (int8_t)i2c_smbus_read_byte_data(
+				client, temp_reg[i]);
 
 		data->stat1 = i2c_smbus_read_byte_data(client,
 			AMC6821_REG_STAT1);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwmon/ds620.c linux-libre-4.9.52-gnu/drivers/hwmon/ds620.c
--- linux-libre-4.9-gnu/drivers/hwmon/ds620.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwmon/ds620.c	2017-09-27 08:40:05.000000000 -0400
@@ -166,7 +166,7 @@ static ssize_t set_temp(struct device *d
 	if (res)
 		return res;
 
-	val = (val * 10 / 625) * 8;
+	val = (clamp_val(val, -128000, 128000) * 10 / 625) * 8;
 
 	mutex_lock(&data->update_lock);
 	data->temp[attr->index] = val;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwmon/g762.c linux-libre-4.9.52-gnu/drivers/hwmon/g762.c
--- linux-libre-4.9-gnu/drivers/hwmon/g762.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwmon/g762.c	2017-09-27 08:40:05.000000000 -0400
@@ -193,14 +193,17 @@ static inline unsigned int rpm_from_cnt(
  * Convert fan RPM value from sysfs into count value for fan controller
  * register (FAN_SET_CNT).
  */
-static inline unsigned char cnt_from_rpm(u32 rpm, u32 clk_freq, u16 p,
+static inline unsigned char cnt_from_rpm(unsigned long rpm, u32 clk_freq, u16 p,
 					 u8 clk_div, u8 gear_mult)
 {
-	if (!rpm)         /* to stop the fan, set cnt to 255 */
+	unsigned long f1 = clk_freq * 30 * gear_mult;
+	unsigned long f2 = p * clk_div;
+
+	if (!rpm)	/* to stop the fan, set cnt to 255 */
 		return 0xff;
 
-	return clamp_val(((clk_freq * 30 * gear_mult) / (rpm * p * clk_div)),
-			 0, 255);
+	rpm = clamp_val(rpm, f1 / (255 * f2), ULONG_MAX / f2);
+	return DIV_ROUND_CLOSEST(f1, rpm * f2);
 }
 
 /* helper to grab and cache data, at most one time per second */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwmon/it87.c linux-libre-4.9.52-gnu/drivers/hwmon/it87.c
--- linux-libre-4.9-gnu/drivers/hwmon/it87.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwmon/it87.c	2017-09-27 08:40:05.000000000 -0400
@@ -1300,25 +1300,35 @@ static ssize_t set_pwm_enable(struct dev
 			it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
 					 data->fan_main_ctrl);
 		} else {
+			u8 ctrl;
+
 			/* No on/off mode, set maximum pwm value */
 			data->pwm_duty[nr] = pwm_to_reg(data, 0xff);
 			it87_write_value(data, IT87_REG_PWM_DUTY[nr],
 					 data->pwm_duty[nr]);
 			/* and set manual mode */
-			data->pwm_ctrl[nr] = has_newer_autopwm(data) ?
-					     data->pwm_temp_map[nr] :
-					     data->pwm_duty[nr];
-			it87_write_value(data, IT87_REG_PWM[nr],
-					 data->pwm_ctrl[nr]);
+			if (has_newer_autopwm(data)) {
+				ctrl = (data->pwm_ctrl[nr] & 0x7c) |
+					data->pwm_temp_map[nr];
+			} else {
+				ctrl = data->pwm_duty[nr];
+			}
+			data->pwm_ctrl[nr] = ctrl;
+			it87_write_value(data, IT87_REG_PWM[nr], ctrl);
 		}
 	} else {
-		if (val == 1)				/* Manual mode */
-			data->pwm_ctrl[nr] = has_newer_autopwm(data) ?
-					     data->pwm_temp_map[nr] :
-					     data->pwm_duty[nr];
-		else					/* Automatic mode */
-			data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
-		it87_write_value(data, IT87_REG_PWM[nr], data->pwm_ctrl[nr]);
+		u8 ctrl;
+
+		if (has_newer_autopwm(data)) {
+			ctrl = (data->pwm_ctrl[nr] & 0x7c) |
+				data->pwm_temp_map[nr];
+			if (val != 1)
+				ctrl |= 0x80;
+		} else {
+			ctrl = (val == 1 ? data->pwm_duty[nr] : 0x80);
+		}
+		data->pwm_ctrl[nr] = ctrl;
+		it87_write_value(data, IT87_REG_PWM[nr], ctrl);
 
 		if (data->type != it8603 && nr < 3) {
 			/* set SmartGuardian mode */
@@ -1344,6 +1354,7 @@ static ssize_t set_pwm(struct device *de
 		return -EINVAL;
 
 	mutex_lock(&data->update_lock);
+	it87_update_pwm_ctrl(data, nr);
 	if (has_newer_autopwm(data)) {
 		/*
 		 * If we are in automatic mode, the PWM duty cycle register
@@ -1456,13 +1467,15 @@ static ssize_t set_pwm_temp_map(struct d
 	}
 
 	mutex_lock(&data->update_lock);
+	it87_update_pwm_ctrl(data, nr);
 	data->pwm_temp_map[nr] = reg;
 	/*
 	 * If we are in automatic mode, write the temp mapping immediately;
 	 * otherwise, just store it for later use.
 	 */
 	if (data->pwm_ctrl[nr] & 0x80) {
-		data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
+		data->pwm_ctrl[nr] = (data->pwm_ctrl[nr] & 0xfc) |
+						data->pwm_temp_map[nr];
 		it87_write_value(data, IT87_REG_PWM[nr], data->pwm_ctrl[nr]);
 	}
 	mutex_unlock(&data->update_lock);
@@ -2587,7 +2600,7 @@ static int __init it87_find(int sioaddr,
 
 		/* Check for pwm4 */
 		reg = superio_inb(sioaddr, IT87_SIO_GPIO4_REG);
-		if (!(reg & BIT(2)))
+		if (reg & BIT(2))
 			sio_data->skip_pwm |= BIT(3);
 
 		/* Check for pwm2, fan2 */
@@ -3102,7 +3115,7 @@ static int __init sm_it87_init(void)
 {
 	int sioaddr[2] = { REG_2E, REG_4E };
 	struct it87_sio_data sio_data;
-	unsigned short isa_address;
+	unsigned short isa_address[2];
 	bool found = false;
 	int i, err;
 
@@ -3112,15 +3125,29 @@ static int __init sm_it87_init(void)
 
 	for (i = 0; i < ARRAY_SIZE(sioaddr); i++) {
 		memset(&sio_data, 0, sizeof(struct it87_sio_data));
-		isa_address = 0;
-		err = it87_find(sioaddr[i], &isa_address, &sio_data);
-		if (err || isa_address == 0)
+		isa_address[i] = 0;
+		err = it87_find(sioaddr[i], &isa_address[i], &sio_data);
+		if (err || isa_address[i] == 0)
 			continue;
+		/*
+		 * Don't register second chip if its ISA address matches
+		 * the first chip's ISA address.
+		 */
+		if (i && isa_address[i] == isa_address[0])
+			break;
 
-		err = it87_device_add(i, isa_address, &sio_data);
+		err = it87_device_add(i, isa_address[i], &sio_data);
 		if (err)
 			goto exit_dev_unregister;
+
 		found = true;
+
+		/*
+		 * IT8705F may respond on both SIO addresses.
+		 * Stop probing after finding one.
+		 */
+		if (sio_data.type == it87)
+			break;
 	}
 
 	if (!found) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwmon/lm90.c linux-libre-4.9.52-gnu/drivers/hwmon/lm90.c
--- linux-libre-4.9-gnu/drivers/hwmon/lm90.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwmon/lm90.c	2017-09-27 08:40:05.000000000 -0400
@@ -1036,7 +1036,7 @@ static const u8 lm90_temp_emerg_index[3]
 };
 
 static const u8 lm90_min_alarm_bits[3] = { 5, 3, 11 };
-static const u8 lm90_max_alarm_bits[3] = { 0, 4, 12 };
+static const u8 lm90_max_alarm_bits[3] = { 6, 4, 12 };
 static const u8 lm90_crit_alarm_bits[3] = { 0, 1, 9 };
 static const u8 lm90_emergency_alarm_bits[3] = { 15, 13, 14 };
 static const u8 lm90_fault_bits[3] = { 0, 2, 10 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwmon/nct7802.c linux-libre-4.9.52-gnu/drivers/hwmon/nct7802.c
--- linux-libre-4.9-gnu/drivers/hwmon/nct7802.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwmon/nct7802.c	2017-09-27 08:40:05.000000000 -0400
@@ -259,13 +259,15 @@ static int nct7802_read_fan_min(struct n
 		ret = 0;
 	else if (ret)
 		ret = DIV_ROUND_CLOSEST(1350000U, ret);
+	else
+		ret = 1350000U;
 abort:
 	mutex_unlock(&data->access_lock);
 	return ret;
 }
 
 static int nct7802_write_fan_min(struct nct7802_data *data, u8 reg_fan_low,
-				 u8 reg_fan_high, unsigned int limit)
+				 u8 reg_fan_high, unsigned long limit)
 {
 	int err;
 
@@ -326,8 +328,8 @@ static int nct7802_write_voltage(struct
 	int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr];
 	int err;
 
+	voltage = clamp_val(voltage, 0, 0x3ff * nct7802_vmul[nr]);
 	voltage = DIV_ROUND_CLOSEST(voltage, nct7802_vmul[nr]);
-	voltage = clamp_val(voltage, 0, 0x3ff);
 
 	mutex_lock(&data->access_lock);
 	err = regmap_write(data->regmap,
@@ -402,7 +404,7 @@ static ssize_t store_temp(struct device
 	if (err < 0)
 		return err;
 
-	val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
+	val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000);
 
 	err = regmap_write(data->regmap, nr, val & 0xff);
 	return err ? : count;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwmon/scpi-hwmon.c linux-libre-4.9.52-gnu/drivers/hwmon/scpi-hwmon.c
--- linux-libre-4.9-gnu/drivers/hwmon/scpi-hwmon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwmon/scpi-hwmon.c	2017-09-27 08:40:05.000000000 -0400
@@ -251,6 +251,7 @@ static const struct of_device_id scpi_of
 	{.compatible = "arm,scpi-sensors"},
 	{},
 };
+MODULE_DEVICE_TABLE(of, scpi_of_match);
 
 static struct platform_driver scpi_hwmon_platdrv = {
 	.driver = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwtracing/coresight/coresight-stm.c linux-libre-4.9.52-gnu/drivers/hwtracing/coresight/coresight-stm.c
--- linux-libre-4.9-gnu/drivers/hwtracing/coresight/coresight-stm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwtracing/coresight/coresight-stm.c	2017-09-27 08:40:05.000000000 -0400
@@ -356,7 +356,7 @@ static void stm_generic_unlink(struct st
 	if (!drvdata || !drvdata->csdev)
 		return;
 
-	stm_disable(drvdata->csdev, NULL);
+	coresight_disable(drvdata->csdev);
 }
 
 static phys_addr_t
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwtracing/intel_th/core.c linux-libre-4.9.52-gnu/drivers/hwtracing/intel_th/core.c
--- linux-libre-4.9-gnu/drivers/hwtracing/intel_th/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwtracing/intel_th/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -218,8 +218,10 @@ static int intel_th_output_activate(stru
 	else
 		intel_th_trace_enable(thdev);
 
-	if (ret)
+	if (ret) {
 		pm_runtime_put(&thdev->dev);
+		module_put(thdrv->driver.owner);
+	}
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwtracing/intel_th/pci.c linux-libre-4.9.52-gnu/drivers/hwtracing/intel_th/pci.c
--- linux-libre-4.9-gnu/drivers/hwtracing/intel_th/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwtracing/intel_th/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,6 +85,16 @@ static const struct pci_device_id intel_
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa2a6),
 		.driver_data = (kernel_ulong_t)0,
 	},
+	{
+		/* Cannon Lake H */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa326),
+		.driver_data = (kernel_ulong_t)0,
+	},
+	{
+		/* Cannon Lake LP */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9da6),
+		.driver_data = (kernel_ulong_t)0,
+	},
 	{ 0 },
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/hwtracing/stm/core.c linux-libre-4.9.52-gnu/drivers/hwtracing/stm/core.c
--- linux-libre-4.9-gnu/drivers/hwtracing/stm/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/hwtracing/stm/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -361,7 +361,7 @@ static int stm_char_open(struct inode *i
 	struct stm_file *stmf;
 	struct device *dev;
 	unsigned int major = imajor(inode);
-	int err = -ENODEV;
+	int err = -ENOMEM;
 
 	dev = class_find_device(&stm_class, NULL, &major, major_match);
 	if (!dev)
@@ -369,8 +369,9 @@ static int stm_char_open(struct inode *i
 
 	stmf = kzalloc(sizeof(*stmf), GFP_KERNEL);
 	if (!stmf)
-		return -ENOMEM;
+		goto err_put_device;
 
+	err = -ENODEV;
 	stm_output_init(&stmf->output);
 	stmf->stm = to_stm_device(dev);
 
@@ -382,9 +383,10 @@ static int stm_char_open(struct inode *i
 	return nonseekable_open(inode, file);
 
 err_free:
+	kfree(stmf);
+err_put_device:
 	/* matches class_find_device() above */
 	put_device(dev);
-	kfree(stmf);
 
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-bcm2835.c linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-bcm2835.c
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-bcm2835.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-bcm2835.c	2017-09-27 08:40:05.000000000 -0400
@@ -64,6 +64,7 @@ struct bcm2835_i2c_dev {
 	int irq;
 	struct i2c_adapter adapter;
 	struct completion completion;
+	struct i2c_msg *curr_msg;
 	u32 msg_err;
 	u8 *msg_buf;
 	size_t msg_buf_remaining;
@@ -126,14 +127,13 @@ static irqreturn_t bcm2835_i2c_isr(int t
 		return IRQ_HANDLED;
 	}
 
-	if (val & BCM2835_I2C_S_RXD) {
-		bcm2835_drain_rxfifo(i2c_dev);
-		if (!(val & BCM2835_I2C_S_DONE))
-			return IRQ_HANDLED;
-	}
-
 	if (val & BCM2835_I2C_S_DONE) {
-		if (i2c_dev->msg_buf_remaining)
+		if (i2c_dev->curr_msg->flags & I2C_M_RD) {
+			bcm2835_drain_rxfifo(i2c_dev);
+			val = bcm2835_i2c_readl(i2c_dev, BCM2835_I2C_S);
+		}
+
+		if ((val & BCM2835_I2C_S_RXD) || i2c_dev->msg_buf_remaining)
 			i2c_dev->msg_err = BCM2835_I2C_S_LEN;
 		else
 			i2c_dev->msg_err = 0;
@@ -141,11 +141,16 @@ static irqreturn_t bcm2835_i2c_isr(int t
 		return IRQ_HANDLED;
 	}
 
-	if (val & BCM2835_I2C_S_TXD) {
+	if (val & BCM2835_I2C_S_TXW) {
 		bcm2835_fill_txfifo(i2c_dev);
 		return IRQ_HANDLED;
 	}
 
+	if (val & BCM2835_I2C_S_RXR) {
+		bcm2835_drain_rxfifo(i2c_dev);
+		return IRQ_HANDLED;
+	}
+
 	return IRQ_NONE;
 }
 
@@ -155,6 +160,7 @@ static int bcm2835_i2c_xfer_msg(struct b
 	u32 c;
 	unsigned long time_left;
 
+	i2c_dev->curr_msg = msg;
 	i2c_dev->msg_buf = msg->buf;
 	i2c_dev->msg_buf_remaining = msg->len;
 	reinit_completion(&i2c_dev->completion);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-brcmstb.c linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-brcmstb.c
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-brcmstb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-brcmstb.c	2017-09-27 08:40:05.000000000 -0400
@@ -465,6 +465,7 @@ static int brcmstb_i2c_xfer(struct i2c_a
 	u8 *tmp_buf;
 	int len = 0;
 	int xfersz = brcmstb_i2c_get_xfersz(dev);
+	u32 cond, cond_per_msg;
 
 	if (dev->is_suspended)
 		return -EBUSY;
@@ -481,10 +482,11 @@ static int brcmstb_i2c_xfer(struct i2c_a
 			pmsg->buf ? pmsg->buf[0] : '0', pmsg->len);
 
 		if (i < (num - 1) && (msgs[i + 1].flags & I2C_M_NOSTART))
-			brcmstb_set_i2c_start_stop(dev, ~(COND_START_STOP));
+			cond = ~COND_START_STOP;
 		else
-			brcmstb_set_i2c_start_stop(dev,
-						   COND_RESTART | COND_NOSTOP);
+			cond = COND_RESTART | COND_NOSTOP;
+
+		brcmstb_set_i2c_start_stop(dev, cond);
 
 		/* Send slave address */
 		if (!(pmsg->flags & I2C_M_NOSTART)) {
@@ -497,13 +499,24 @@ static int brcmstb_i2c_xfer(struct i2c_a
 			}
 		}
 
+		cond_per_msg = cond;
+
 		/* Perform data transfer */
 		while (len) {
 			bytes_to_xfer = min(len, xfersz);
 
-			if (len <= xfersz && i == (num - 1))
-				brcmstb_set_i2c_start_stop(dev,
-							   ~(COND_START_STOP));
+			if (len <= xfersz) {
+				if (i == (num - 1))
+					cond_per_msg = cond_per_msg &
+						~(COND_RESTART | COND_NOSTOP);
+				else
+					cond_per_msg = cond;
+			} else {
+				cond_per_msg = (cond_per_msg & ~COND_RESTART) |
+					COND_NOSTOP;
+			}
+
+			brcmstb_set_i2c_start_stop(dev, cond_per_msg);
 
 			rc = brcmstb_i2c_xfer_bsc_data(dev, tmp_buf,
 						       bytes_to_xfer, pmsg);
@@ -512,6 +525,8 @@ static int brcmstb_i2c_xfer(struct i2c_a
 
 			len -=  bytes_to_xfer;
 			tmp_buf += bytes_to_xfer;
+
+			cond_per_msg = COND_NOSTART | COND_NOSTOP;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-designware-core.c linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-designware-core.c
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-designware-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-designware-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -475,30 +475,28 @@ static int i2c_dw_wait_bus_not_busy(stru
 static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
 {
 	struct i2c_msg *msgs = dev->msgs;
-	u32 ic_tar = 0;
+	u32 ic_con, ic_tar = 0;
 
 	/* Disable the adapter */
 	__i2c_dw_enable_and_wait(dev, false);
 
 	/* if the slave address is ten bit address, enable 10BITADDR */
-	if (dev->dynamic_tar_update_enabled) {
+	ic_con = dw_readl(dev, DW_IC_CON);
+	if (msgs[dev->msg_write_idx].flags & I2C_M_TEN) {
+		ic_con |= DW_IC_CON_10BITADDR_MASTER;
 		/*
 		 * If I2C_DYNAMIC_TAR_UPDATE is set, the 10-bit addressing
-		 * mode has to be enabled via bit 12 of IC_TAR register,
-		 * otherwise bit 4 of IC_CON is used.
+		 * mode has to be enabled via bit 12 of IC_TAR register.
+		 * We set it always as I2C_DYNAMIC_TAR_UPDATE can't be
+		 * detected from registers.
 		 */
-		if (msgs[dev->msg_write_idx].flags & I2C_M_TEN)
-			ic_tar = DW_IC_TAR_10BITADDR_MASTER;
+		ic_tar = DW_IC_TAR_10BITADDR_MASTER;
 	} else {
-		u32 ic_con = dw_readl(dev, DW_IC_CON);
-
-		if (msgs[dev->msg_write_idx].flags & I2C_M_TEN)
-			ic_con |= DW_IC_CON_10BITADDR_MASTER;
-		else
-			ic_con &= ~DW_IC_CON_10BITADDR_MASTER;
-		dw_writel(dev, ic_con, DW_IC_CON);
+		ic_con &= ~DW_IC_CON_10BITADDR_MASTER;
 	}
 
+	dw_writel(dev, ic_con, DW_IC_CON);
+
 	/*
 	 * Set the slave (target) address and enable 10-bit addressing mode
 	 * if applicable.
@@ -923,7 +921,6 @@ int i2c_dw_probe(struct dw_i2c_dev *dev)
 {
 	struct i2c_adapter *adap = &dev->adapter;
 	int r;
-	u32 reg;
 
 	init_completion(&dev->cmd_complete);
 
@@ -931,26 +928,6 @@ int i2c_dw_probe(struct dw_i2c_dev *dev)
 	if (r)
 		return r;
 
-	r = i2c_dw_acquire_lock(dev);
-	if (r)
-		return r;
-
-	/*
-	 * Test if dynamic TAR update is enabled in this controller by writing
-	 * to IC_10BITADDR_MASTER field in IC_CON: when it is enabled this
-	 * field is read-only so it should not succeed
-	 */
-	reg = dw_readl(dev, DW_IC_CON);
-	dw_writel(dev, reg ^ DW_IC_CON_10BITADDR_MASTER, DW_IC_CON);
-
-	if ((dw_readl(dev, DW_IC_CON) & DW_IC_CON_10BITADDR_MASTER) ==
-	    (reg & DW_IC_CON_10BITADDR_MASTER)) {
-		dev->dynamic_tar_update_enabled = true;
-		dev_dbg(dev->dev, "Dynamic TAR update enabled");
-	}
-
-	i2c_dw_release_lock(dev);
-
 	snprintf(adap->name, sizeof(adap->name),
 		 "Synopsys DesignWare I2C adapter");
 	adap->retries = 3;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-designware-core.h linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-designware-core.h
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-designware-core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-designware-core.h	2017-09-27 08:40:05.000000000 -0400
@@ -117,7 +117,6 @@ struct dw_i2c_dev {
 	int			(*acquire_lock)(struct dw_i2c_dev *dev);
 	void			(*release_lock)(struct dw_i2c_dev *dev);
 	bool			pm_runtime_disabled;
-	bool			dynamic_tar_update_enabled;
 };
 
 #define ACCESS_SWAP		0x00000001
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-designware-platdrv.c linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-designware-platdrv.c
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-designware-platdrv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-designware-platdrv.c	2017-09-27 08:40:05.000000000 -0400
@@ -319,7 +319,7 @@ static void dw_i2c_plat_complete(struct
 #endif
 
 #ifdef CONFIG_PM
-static int dw_i2c_plat_suspend(struct device *dev)
+static int dw_i2c_plat_runtime_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
@@ -343,11 +343,21 @@ static int dw_i2c_plat_resume(struct dev
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int dw_i2c_plat_suspend(struct device *dev)
+{
+	pm_runtime_resume(dev);
+	return dw_i2c_plat_runtime_suspend(dev);
+}
+#endif
+
 static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
 	.prepare = dw_i2c_plat_prepare,
 	.complete = dw_i2c_plat_complete,
 	SET_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
-	SET_RUNTIME_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume, NULL)
+	SET_RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend,
+			   dw_i2c_plat_resume,
+			   NULL)
 };
 
 #define DW_I2C_DEV_PMOPS (&dw_i2c_dev_pm_ops)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-ismt.c linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-ismt.c
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-ismt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-ismt.c	2017-09-27 08:40:05.000000000 -0400
@@ -341,8 +341,10 @@ static int ismt_process_desc(const struc
 			break;
 		case I2C_SMBUS_BLOCK_DATA:
 		case I2C_SMBUS_I2C_BLOCK_DATA:
-			memcpy(&data->block[1], dma_buffer, desc->rxbytes);
-			data->block[0] = desc->rxbytes;
+			if (desc->rxbytes != dma_buffer[0] + 1)
+				return -EMSGSIZE;
+
+			memcpy(data->block, dma_buffer, desc->rxbytes);
 			break;
 		}
 		return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-piix4.c linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-piix4.c
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-piix4.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-piix4.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,7 +58,7 @@
 #define SMBSLVDAT	(0xC + piix4_smba)
 
 /* count for request_region */
-#define SMBIOSIZE	8
+#define SMBIOSIZE	9
 
 /* PCI Address Constants */
 #define SMBBA		0x090
@@ -585,12 +585,33 @@ static s32 piix4_access_sb800(struct i2c
 		 u8 command, int size, union i2c_smbus_data *data)
 {
 	struct i2c_piix4_adapdata *adapdata = i2c_get_adapdata(adap);
+	unsigned short piix4_smba = adapdata->smba;
+	int retries = MAX_TIMEOUT;
+	int smbslvcnt;
 	u8 smba_en_lo;
 	u8 port;
 	int retval;
 
 	mutex_lock(&piix4_mutex_sb800);
 
+	/* Request the SMBUS semaphore, avoid conflicts with the IMC */
+	smbslvcnt  = inb_p(SMBSLVCNT);
+	do {
+		outb_p(smbslvcnt | 0x10, SMBSLVCNT);
+
+		/* Check the semaphore status */
+		smbslvcnt  = inb_p(SMBSLVCNT);
+		if (smbslvcnt & 0x10)
+			break;
+
+		usleep_range(1000, 2000);
+	} while (--retries);
+	/* SMBus is still owned by the IMC, we give up */
+	if (!retries) {
+		mutex_unlock(&piix4_mutex_sb800);
+		return -EBUSY;
+	}
+
 	outb_p(piix4_port_sel_sb800, SB800_PIIX4_SMB_IDX);
 	smba_en_lo = inb_p(SB800_PIIX4_SMB_IDX + 1);
 
@@ -604,6 +625,9 @@ static s32 piix4_access_sb800(struct i2c
 
 	outb_p(smba_en_lo, SB800_PIIX4_SMB_IDX + 1);
 
+	/* Release the semaphore */
+	outb_p(smbslvcnt | 0x20, SMBSLVCNT);
+
 	mutex_unlock(&piix4_mutex_sb800);
 
 	return retval;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/busses/i2c-tiny-usb.c linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-tiny-usb.c
--- linux-libre-4.9-gnu/drivers/i2c/busses/i2c-tiny-usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/busses/i2c-tiny-usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -178,22 +178,39 @@ static int usb_read(struct i2c_adapter *
 		    int value, int index, void *data, int len)
 {
 	struct i2c_tiny_usb *dev = (struct i2c_tiny_usb *)adapter->algo_data;
+	void *dmadata = kmalloc(len, GFP_KERNEL);
+	int ret;
+
+	if (!dmadata)
+		return -ENOMEM;
 
 	/* do control transfer */
-	return usb_control_msg(dev->usb_dev, usb_rcvctrlpipe(dev->usb_dev, 0),
+	ret = usb_control_msg(dev->usb_dev, usb_rcvctrlpipe(dev->usb_dev, 0),
 			       cmd, USB_TYPE_VENDOR | USB_RECIP_INTERFACE |
-			       USB_DIR_IN, value, index, data, len, 2000);
+			       USB_DIR_IN, value, index, dmadata, len, 2000);
+
+	memcpy(data, dmadata, len);
+	kfree(dmadata);
+	return ret;
 }
 
 static int usb_write(struct i2c_adapter *adapter, int cmd,
 		     int value, int index, void *data, int len)
 {
 	struct i2c_tiny_usb *dev = (struct i2c_tiny_usb *)adapter->algo_data;
+	void *dmadata = kmemdup(data, len, GFP_KERNEL);
+	int ret;
+
+	if (!dmadata)
+		return -ENOMEM;
 
 	/* do control transfer */
-	return usb_control_msg(dev->usb_dev, usb_sndctrlpipe(dev->usb_dev, 0),
+	ret = usb_control_msg(dev->usb_dev, usb_sndctrlpipe(dev->usb_dev, 0),
 			       cmd, USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
-			       value, index, data, len, 2000);
+			       value, index, dmadata, len, 2000);
+
+	kfree(dmadata);
+	return ret;
 }
 
 static void i2c_tiny_usb_free(struct i2c_tiny_usb *dev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/i2c-core.c linux-libre-4.9.52-gnu/drivers/i2c/i2c-core.c
--- linux-libre-4.9-gnu/drivers/i2c/i2c-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/i2c-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1657,7 +1657,7 @@ static struct i2c_client *of_i2c_registe
 
 	if (i2c_check_addr_validity(addr, info.flags)) {
 		dev_err(&adap->dev, "of_i2c: invalid addr=%x on %s\n",
-			info.addr, node->full_name);
+			addr, node->full_name);
 		return ERR_PTR(-EINVAL);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/i2c-dev.c linux-libre-4.9.52-gnu/drivers/i2c/i2c-dev.c
--- linux-libre-4.9-gnu/drivers/i2c/i2c-dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/i2c-dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -331,7 +331,7 @@ static noinline int i2cdev_ioctl_smbus(s
 		unsigned long arg)
 {
 	struct i2c_smbus_ioctl_data data_arg;
-	union i2c_smbus_data temp;
+	union i2c_smbus_data temp = {};
 	int datasize, res;
 
 	if (copy_from_user(&data_arg,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/i2c-mux.c linux-libre-4.9.52-gnu/drivers/i2c/i2c-mux.c
--- linux-libre-4.9-gnu/drivers/i2c/i2c-mux.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/i2c-mux.c	2017-09-27 08:40:05.000000000 -0400
@@ -429,6 +429,7 @@ void i2c_mux_del_adapters(struct i2c_mux
 	while (muxc->num_adapters) {
 		struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters];
 		struct i2c_mux_priv *priv = adap->algo_data;
+		struct device_node *np = adap->dev.of_node;
 
 		muxc->adapter[muxc->num_adapters] = NULL;
 
@@ -438,6 +439,7 @@ void i2c_mux_del_adapters(struct i2c_mux
 
 		sysfs_remove_link(&priv->adap.dev.kobj, "mux_device");
 		i2c_del_adapter(adap);
+		of_node_put(np);
 		kfree(priv);
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c linux-libre-4.9.52-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c
--- linux-libre-4.9-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/i2c/muxes/i2c-mux-pca954x.c	2017-09-27 08:40:05.000000000 -0400
@@ -151,6 +151,9 @@ static int pca954x_reg_write(struct i2c_
 		buf[0] = val;
 		msg.buf = buf;
 		ret = __i2c_transfer(adap, &msg, 1);
+
+		if (ret >= 0 && ret != 1)
+			ret = -EREMOTEIO;
 	} else {
 		union i2c_smbus_data data;
 		ret = adap->algo->smbus_xfer(adap, client->addr,
@@ -179,7 +182,7 @@ static int pca954x_select_chan(struct i2
 	/* Only select the channel if its different from the last channel */
 	if (data->last_chan != regval) {
 		ret = pca954x_reg_write(muxc->parent, client, regval);
-		data->last_chan = ret ? 0 : regval;
+		data->last_chan = ret < 0 ? 0 : regval;
 	}
 
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/idle/intel_idle.c linux-libre-4.9.52-gnu/drivers/idle/intel_idle.c
--- linux-libre-4.9-gnu/drivers/idle/intel_idle.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/idle/intel_idle.c	2017-09-27 08:40:05.000000000 -0400
@@ -724,6 +724,50 @@ static struct cpuidle_state atom_cstates
 	{
 		.enter = NULL }
 };
+static struct cpuidle_state tangier_cstates[] = {
+	{
+		.name = "C1-TNG",
+		.desc = "MWAIT 0x00",
+		.flags = MWAIT2flg(0x00),
+		.exit_latency = 1,
+		.target_residency = 4,
+		.enter = &intel_idle,
+		.enter_freeze = intel_idle_freeze, },
+	{
+		.name = "C4-TNG",
+		.desc = "MWAIT 0x30",
+		.flags = MWAIT2flg(0x30) | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 100,
+		.target_residency = 400,
+		.enter = &intel_idle,
+		.enter_freeze = intel_idle_freeze, },
+	{
+		.name = "C6-TNG",
+		.desc = "MWAIT 0x52",
+		.flags = MWAIT2flg(0x52) | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 140,
+		.target_residency = 560,
+		.enter = &intel_idle,
+		.enter_freeze = intel_idle_freeze, },
+	{
+		.name = "C7-TNG",
+		.desc = "MWAIT 0x60",
+		.flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 1200,
+		.target_residency = 4000,
+		.enter = &intel_idle,
+		.enter_freeze = intel_idle_freeze, },
+	{
+		.name = "C9-TNG",
+		.desc = "MWAIT 0x64",
+		.flags = MWAIT2flg(0x64) | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 10000,
+		.target_residency = 20000,
+		.enter = &intel_idle,
+		.enter_freeze = intel_idle_freeze, },
+	{
+		.enter = NULL }
+};
 static struct cpuidle_state avn_cstates[] = {
 	{
 		.name = "C1-AVN",
@@ -978,6 +1022,10 @@ static const struct idle_cpu idle_cpu_at
 	.state_table = atom_cstates,
 };
 
+static const struct idle_cpu idle_cpu_tangier = {
+	.state_table = tangier_cstates,
+};
+
 static const struct idle_cpu idle_cpu_lincroft = {
 	.state_table = atom_cstates,
 	.auto_demotion_disable_flags = ATM_LNC_C6_AUTO_DEMOTE,
@@ -1066,6 +1114,7 @@ static const struct x86_cpu_id intel_idl
 	ICPU(INTEL_FAM6_SANDYBRIDGE_X,		idle_cpu_snb),
 	ICPU(INTEL_FAM6_ATOM_CEDARVIEW,		idle_cpu_atom),
 	ICPU(INTEL_FAM6_ATOM_SILVERMONT1,	idle_cpu_byt),
+	ICPU(INTEL_FAM6_ATOM_MERRIFIELD,	idle_cpu_tangier),
 	ICPU(INTEL_FAM6_ATOM_AIRMONT,		idle_cpu_cht),
 	ICPU(INTEL_FAM6_IVYBRIDGE,		idle_cpu_ivb),
 	ICPU(INTEL_FAM6_IVYBRIDGE_X,		idle_cpu_ivt),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/accel/bmc150-accel-core.c linux-libre-4.9.52-gnu/drivers/iio/accel/bmc150-accel-core.c
--- linux-libre-4.9-gnu/drivers/iio/accel/bmc150-accel-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/accel/bmc150-accel-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -193,7 +193,6 @@ struct bmc150_accel_data {
 	struct regmap *regmap;
 	int irq;
 	struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS];
-	atomic_t active_intr;
 	struct bmc150_accel_trigger triggers[BMC150_ACCEL_TRIGGERS];
 	struct mutex mutex;
 	u8 fifo_mode, watermark;
@@ -493,11 +492,6 @@ static int bmc150_accel_set_interrupt(st
 		goto out_fix_power_state;
 	}
 
-	if (state)
-		atomic_inc(&data->active_intr);
-	else
-		atomic_dec(&data->active_intr);
-
 	return 0;
 
 out_fix_power_state:
@@ -1709,8 +1703,7 @@ static int bmc150_accel_resume(struct de
 	struct bmc150_accel_data *data = iio_priv(indio_dev);
 
 	mutex_lock(&data->mutex);
-	if (atomic_read(&data->active_intr))
-		bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+	bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
 	bmc150_accel_fifo_set_mode(data);
 	mutex_unlock(&data->mutex);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/accel/st_accel_core.c linux-libre-4.9.52-gnu/drivers/iio/accel/st_accel_core.c
--- linux-libre-4.9-gnu/drivers/iio/accel/st_accel_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/accel/st_accel_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -154,8 +154,8 @@
 #define ST_ACCEL_4_FS_MASK			0x80
 #define ST_ACCEL_4_FS_AVL_2_VAL			0X00
 #define ST_ACCEL_4_FS_AVL_6_VAL			0X01
-#define ST_ACCEL_4_FS_AVL_2_GAIN		IIO_G_TO_M_S_2(1024)
-#define ST_ACCEL_4_FS_AVL_6_GAIN		IIO_G_TO_M_S_2(340)
+#define ST_ACCEL_4_FS_AVL_2_GAIN		IIO_G_TO_M_S_2(1000)
+#define ST_ACCEL_4_FS_AVL_6_GAIN		IIO_G_TO_M_S_2(3000)
 #define ST_ACCEL_4_BDU_ADDR			0x21
 #define ST_ACCEL_4_BDU_MASK			0x40
 #define ST_ACCEL_4_DRDY_IRQ_ADDR		0x21
@@ -346,6 +346,14 @@ static const struct st_sensor_settings s
 			.addr = ST_ACCEL_1_BDU_ADDR,
 			.mask = ST_ACCEL_1_BDU_MASK,
 		},
+		/*
+		 * Data Alignment Setting - needs to be set to get
+		 * left-justified data like all other sensors.
+		 */
+		.das = {
+			.addr = 0x21,
+			.mask = 0x01,
+		},
 		.drdy_irq = {
 			.addr = ST_ACCEL_1_DRDY_IRQ_ADDR,
 			.mask_int1 = ST_ACCEL_1_DRDY_IRQ_INT1_MASK,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/adc/bcm_iproc_adc.c linux-libre-4.9.52-gnu/drivers/iio/adc/bcm_iproc_adc.c
--- linux-libre-4.9-gnu/drivers/iio/adc/bcm_iproc_adc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/adc/bcm_iproc_adc.c	2017-09-27 08:40:05.000000000 -0400
@@ -143,7 +143,7 @@ static void iproc_adc_reg_dump(struct ii
 	iproc_adc_dbg_reg(dev, adc_priv, IPROC_SOFT_BYPASS_DATA);
 }
 
-static irqreturn_t iproc_adc_interrupt_handler(int irq, void *data)
+static irqreturn_t iproc_adc_interrupt_thread(int irq, void *data)
 {
 	u32 channel_intr_status;
 	u32 intr_status;
@@ -167,7 +167,7 @@ static irqreturn_t iproc_adc_interrupt_h
 	return IRQ_NONE;
 }
 
-static irqreturn_t iproc_adc_interrupt_thread(int irq, void *data)
+static irqreturn_t iproc_adc_interrupt_handler(int irq, void *data)
 {
 	irqreturn_t retval = IRQ_NONE;
 	struct iproc_adc_priv *adc_priv;
@@ -181,7 +181,7 @@ static irqreturn_t iproc_adc_interrupt_t
 	adc_priv = iio_priv(indio_dev);
 
 	regmap_read(adc_priv->regmap, IPROC_INTERRUPT_STATUS, &intr_status);
-	dev_dbg(&indio_dev->dev, "iproc_adc_interrupt_thread(),INTRPT_STS:%x\n",
+	dev_dbg(&indio_dev->dev, "iproc_adc_interrupt_handler(),INTRPT_STS:%x\n",
 			intr_status);
 
 	intr_channels = (intr_status & IPROC_ADC_INTR_MASK) >> IPROC_ADC_INTR;
@@ -566,8 +566,8 @@ static int iproc_adc_probe(struct platfo
 	}
 
 	ret = devm_request_threaded_irq(&pdev->dev, adc_priv->irqno,
-				iproc_adc_interrupt_thread,
 				iproc_adc_interrupt_handler,
+				iproc_adc_interrupt_thread,
 				IRQF_SHARED, "iproc-adc", indio_dev);
 	if (ret) {
 		dev_err(&pdev->dev, "request_irq error %d\n", ret);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/adc/palmas_gpadc.c linux-libre-4.9.52-gnu/drivers/iio/adc/palmas_gpadc.c
--- linux-libre-4.9-gnu/drivers/iio/adc/palmas_gpadc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/adc/palmas_gpadc.c	2017-09-27 08:40:05.000000000 -0400
@@ -775,7 +775,7 @@ static int palmas_adc_wakeup_reset(struc
 
 static int palmas_gpadc_suspend(struct device *dev)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct palmas_gpadc *adc = iio_priv(indio_dev);
 	int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
 	int ret;
@@ -798,7 +798,7 @@ static int palmas_gpadc_suspend(struct d
 
 static int palmas_gpadc_resume(struct device *dev)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct palmas_gpadc *adc = iio_priv(indio_dev);
 	int wakeup = adc->wakeup1_enable || adc->wakeup2_enable;
 	int ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/adc/ti-ads1015.c linux-libre-4.9.52-gnu/drivers/iio/adc/ti-ads1015.c
--- linux-libre-4.9-gnu/drivers/iio/adc/ti-ads1015.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/adc/ti-ads1015.c	2017-09-27 08:40:05.000000000 -0400
@@ -80,18 +80,12 @@ static const unsigned int ads1115_data_r
 	8, 16, 32, 64, 128, 250, 475, 860
 };
 
-static const struct {
-	int scale;
-	int uscale;
-} ads1015_scale[] = {
-	{3, 0},
-	{2, 0},
-	{1, 0},
-	{0, 500000},
-	{0, 250000},
-	{0, 125000},
-	{0, 125000},
-	{0, 125000},
+/*
+ * Translation from PGA bits to full-scale positive and negative input voltage
+ * range in mV
+ */
+static int ads1015_fullscale_range[] = {
+	6144, 4096, 2048, 1024, 512, 256, 256, 256
 };
 
 #define ADS1015_V_CHAN(_chan, _addr) {				\
@@ -182,6 +176,12 @@ struct ads1015_data {
 	struct ads1015_channel_data channel_data[ADS1015_CHANNELS];
 
 	unsigned int *data_rate;
+	/*
+	 * Set to true when the ADC is switched to the continuous-conversion
+	 * mode and exits from a power-down state.  This flag is used to avoid
+	 * getting the stale result from the conversion register.
+	 */
+	bool conv_invalid;
 };
 
 static bool ads1015_is_writeable_reg(struct device *dev, unsigned int reg)
@@ -234,33 +234,43 @@ static int ads1015_set_power_state(struc
 		ret = pm_runtime_put_autosuspend(dev);
 	}
 
-	return ret;
+	return ret < 0 ? ret : 0;
 }
 
 static
 int ads1015_get_adc_result(struct ads1015_data *data, int chan, int *val)
 {
 	int ret, pga, dr, conv_time;
-	bool change;
+	unsigned int old, mask, cfg;
 
 	if (chan < 0 || chan >= ADS1015_CHANNELS)
 		return -EINVAL;
 
+	ret = regmap_read(data->regmap, ADS1015_CFG_REG, &old);
+	if (ret)
+		return ret;
+
 	pga = data->channel_data[chan].pga;
 	dr = data->channel_data[chan].data_rate;
+	mask = ADS1015_CFG_MUX_MASK | ADS1015_CFG_PGA_MASK |
+		ADS1015_CFG_DR_MASK;
+	cfg = chan << ADS1015_CFG_MUX_SHIFT | pga << ADS1015_CFG_PGA_SHIFT |
+		dr << ADS1015_CFG_DR_SHIFT;
 
-	ret = regmap_update_bits_check(data->regmap, ADS1015_CFG_REG,
-				       ADS1015_CFG_MUX_MASK |
-				       ADS1015_CFG_PGA_MASK,
-				       chan << ADS1015_CFG_MUX_SHIFT |
-				       pga << ADS1015_CFG_PGA_SHIFT,
-				       &change);
-	if (ret < 0)
+	cfg = (old & ~mask) | (cfg & mask);
+
+	ret = regmap_write(data->regmap, ADS1015_CFG_REG, cfg);
+	if (ret)
 		return ret;
 
-	if (change) {
-		conv_time = DIV_ROUND_UP(USEC_PER_SEC, data->data_rate[dr]);
+	if (old != cfg || data->conv_invalid) {
+		int dr_old = (old & ADS1015_CFG_DR_MASK) >>
+				ADS1015_CFG_DR_SHIFT;
+
+		conv_time = DIV_ROUND_UP(USEC_PER_SEC, data->data_rate[dr_old]);
+		conv_time += DIV_ROUND_UP(USEC_PER_SEC, data->data_rate[dr]);
 		usleep_range(conv_time, conv_time + 1);
+		data->conv_invalid = false;
 	}
 
 	return regmap_read(data->regmap, ADS1015_CONV_REG, val);
@@ -297,17 +307,20 @@ err:
 	return IRQ_HANDLED;
 }
 
-static int ads1015_set_scale(struct ads1015_data *data, int chan,
+static int ads1015_set_scale(struct ads1015_data *data,
+			     struct iio_chan_spec const *chan,
 			     int scale, int uscale)
 {
 	int i, ret, rindex = -1;
+	int fullscale = div_s64((scale * 1000000LL + uscale) <<
+				(chan->scan_type.realbits - 1), 1000000);
 
-	for (i = 0; i < ARRAY_SIZE(ads1015_scale); i++)
-		if (ads1015_scale[i].scale == scale &&
-		    ads1015_scale[i].uscale == uscale) {
+	for (i = 0; i < ARRAY_SIZE(ads1015_fullscale_range); i++) {
+		if (ads1015_fullscale_range[i] == fullscale) {
 			rindex = i;
 			break;
 		}
+	}
 	if (rindex < 0)
 		return -EINVAL;
 
@@ -317,32 +330,23 @@ static int ads1015_set_scale(struct ads1
 	if (ret < 0)
 		return ret;
 
-	data->channel_data[chan].pga = rindex;
+	data->channel_data[chan->address].pga = rindex;
 
 	return 0;
 }
 
 static int ads1015_set_data_rate(struct ads1015_data *data, int chan, int rate)
 {
-	int i, ret, rindex = -1;
+	int i;
 
-	for (i = 0; i < ARRAY_SIZE(ads1015_data_rate); i++)
+	for (i = 0; i < ARRAY_SIZE(ads1015_data_rate); i++) {
 		if (data->data_rate[i] == rate) {
-			rindex = i;
-			break;
+			data->channel_data[chan].data_rate = i;
+			return 0;
 		}
-	if (rindex < 0)
-		return -EINVAL;
-
-	ret = regmap_update_bits(data->regmap, ADS1015_CFG_REG,
-				 ADS1015_CFG_DR_MASK,
-				 rindex << ADS1015_CFG_DR_SHIFT);
-	if (ret < 0)
-		return ret;
-
-	data->channel_data[chan].data_rate = rindex;
+	}
 
-	return 0;
+	return -EINVAL;
 }
 
 static int ads1015_read_raw(struct iio_dev *indio_dev,
@@ -384,9 +388,9 @@ static int ads1015_read_raw(struct iio_d
 	}
 	case IIO_CHAN_INFO_SCALE:
 		idx = data->channel_data[chan->address].pga;
-		*val = ads1015_scale[idx].scale;
-		*val2 = ads1015_scale[idx].uscale;
-		ret = IIO_VAL_INT_PLUS_MICRO;
+		*val = ads1015_fullscale_range[idx];
+		*val2 = chan->scan_type.realbits - 1;
+		ret = IIO_VAL_FRACTIONAL_LOG2;
 		break;
 	case IIO_CHAN_INFO_SAMP_FREQ:
 		idx = data->channel_data[chan->address].data_rate;
@@ -413,7 +417,7 @@ static int ads1015_write_raw(struct iio_
 	mutex_lock(&data->lock);
 	switch (mask) {
 	case IIO_CHAN_INFO_SCALE:
-		ret = ads1015_set_scale(data, chan->address, val, val2);
+		ret = ads1015_set_scale(data, chan, val, val2);
 		break;
 	case IIO_CHAN_INFO_SAMP_FREQ:
 		ret = ads1015_set_data_rate(data, chan->address, val);
@@ -445,7 +449,10 @@ static const struct iio_buffer_setup_ops
 	.validate_scan_mask = &iio_validate_scan_mask_onehot,
 };
 
-static IIO_CONST_ATTR(scale_available, "3 2 1 0.5 0.25 0.125");
+static IIO_CONST_ATTR_NAMED(ads1015_scale_available, scale_available,
+	"3 2 1 0.5 0.25 0.125");
+static IIO_CONST_ATTR_NAMED(ads1115_scale_available, scale_available,
+	"0.1875 0.125 0.0625 0.03125 0.015625 0.007813");
 
 static IIO_CONST_ATTR_NAMED(ads1015_sampling_frequency_available,
 	sampling_frequency_available, "128 250 490 920 1600 2400 3300");
@@ -453,7 +460,7 @@ static IIO_CONST_ATTR_NAMED(ads1115_samp
 	sampling_frequency_available, "8 16 32 64 128 250 475 860");
 
 static struct attribute *ads1015_attributes[] = {
-	&iio_const_attr_scale_available.dev_attr.attr,
+	&iio_const_attr_ads1015_scale_available.dev_attr.attr,
 	&iio_const_attr_ads1015_sampling_frequency_available.dev_attr.attr,
 	NULL,
 };
@@ -463,7 +470,7 @@ static const struct attribute_group ads1
 };
 
 static struct attribute *ads1115_attributes[] = {
-	&iio_const_attr_scale_available.dev_attr.attr,
+	&iio_const_attr_ads1115_scale_available.dev_attr.attr,
 	&iio_const_attr_ads1115_sampling_frequency_available.dev_attr.attr,
 	NULL,
 };
@@ -624,6 +631,15 @@ static int ads1015_probe(struct i2c_clie
 		dev_err(&client->dev, "iio triggered buffer setup failed\n");
 		return ret;
 	}
+
+	ret = regmap_update_bits(data->regmap, ADS1015_CFG_REG,
+				ADS1015_CFG_MOD_MASK,
+				ADS1015_CONTINUOUS << ADS1015_CFG_MOD_SHIFT);
+	if (ret)
+		return ret;
+
+	data->conv_invalid = true;
+
 	ret = pm_runtime_set_active(&client->dev);
 	if (ret)
 		goto err_buffer_cleanup;
@@ -679,10 +695,15 @@ static int ads1015_runtime_resume(struct
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
 	struct ads1015_data *data = iio_priv(indio_dev);
+	int ret;
 
-	return regmap_update_bits(data->regmap, ADS1015_CFG_REG,
+	ret = regmap_update_bits(data->regmap, ADS1015_CFG_REG,
 				  ADS1015_CFG_MOD_MASK,
 				  ADS1015_CONTINUOUS << ADS1015_CFG_MOD_SHIFT);
+	if (!ret)
+		data->conv_invalid = true;
+
+	return ret;
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/adc/ti_am335x_adc.c linux-libre-4.9.52-gnu/drivers/iio/adc/ti_am335x_adc.c
--- linux-libre-4.9-gnu/drivers/iio/adc/ti_am335x_adc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/adc/ti_am335x_adc.c	2017-09-27 08:40:05.000000000 -0400
@@ -151,7 +151,9 @@ static irqreturn_t tiadc_irq_h(int irq,
 {
 	struct iio_dev *indio_dev = private;
 	struct tiadc_device *adc_dev = iio_priv(indio_dev);
-	unsigned int status, config;
+	unsigned int status, config, adc_fsm;
+	unsigned short count = 0;
+
 	status = tiadc_readl(adc_dev, REG_IRQSTATUS);
 
 	/*
@@ -165,6 +167,15 @@ static irqreturn_t tiadc_irq_h(int irq,
 		tiadc_writel(adc_dev, REG_CTRL, config);
 		tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1OVRRUN
 				| IRQENB_FIFO1UNDRFLW | IRQENB_FIFO1THRES);
+
+		/* wait for idle state.
+		 * ADC needs to finish the current conversion
+		 * before disabling the module
+		 */
+		do {
+			adc_fsm = tiadc_readl(adc_dev, REG_ADCFSM);
+		} while (adc_fsm != 0x10 && count++ < 100);
+
 		tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_TSCSSENB));
 		return IRQ_HANDLED;
 	} else if (status & IRQENB_FIFO1THRES) {
@@ -473,7 +484,7 @@ static int tiadc_probe(struct platform_d
 		return -EINVAL;
 	}
 
-	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*indio_dev));
+	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc_dev));
 	if (indio_dev == NULL) {
 		dev_err(&pdev->dev, "failed to allocate iio device\n");
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/adc/vf610_adc.c linux-libre-4.9.52-gnu/drivers/iio/adc/vf610_adc.c
--- linux-libre-4.9-gnu/drivers/iio/adc/vf610_adc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/adc/vf610_adc.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,7 +77,7 @@
 #define VF610_ADC_ADSTS_MASK		0x300
 #define VF610_ADC_ADLPC_EN		0x80
 #define VF610_ADC_ADHSC_EN		0x400
-#define VF610_ADC_REFSEL_VALT		0x100
+#define VF610_ADC_REFSEL_VALT		0x800
 #define VF610_ADC_REFSEL_VBG		0x1000
 #define VF610_ADC_ADTRG_HARD		0x2000
 #define VF610_ADC_AVGS_8		0x4000
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c linux-libre-4.9.52-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
--- linux-libre-4.9-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/common/hid-sensors/hid-sensor-attributes.c	2017-09-27 08:40:05.000000000 -0400
@@ -217,7 +217,15 @@ int hid_sensor_write_samp_freq_value(str
 	if (ret < 0 || value < 0)
 		ret = -EINVAL;
 
-	return ret;
+	ret = sensor_hub_get_feature(st->hsdev,
+				     st->poll.report_id,
+				     st->poll.index, sizeof(value), &value);
+	if (ret < 0 || value < 0)
+		return -EINVAL;
+
+	st->poll_interval = value;
+
+	return 0;
 }
 EXPORT_SYMBOL(hid_sensor_write_samp_freq_value);
 
@@ -259,7 +267,16 @@ int hid_sensor_write_raw_hyst_value(stru
 	if (ret < 0 || value < 0)
 		ret = -EINVAL;
 
-	return ret;
+	ret = sensor_hub_get_feature(st->hsdev,
+				     st->sensitivity.report_id,
+				     st->sensitivity.index, sizeof(value),
+				     &value);
+	if (ret < 0 || value < 0)
+		return -EINVAL;
+
+	st->raw_hystersis = value;
+
+	return 0;
 }
 EXPORT_SYMBOL(hid_sensor_write_raw_hyst_value);
 
@@ -355,6 +372,9 @@ int hid_sensor_get_reporting_interval(st
 	/* Default unit of measure is milliseconds */
 	if (st->poll.units == 0)
 		st->poll.units = HID_USAGE_SENSOR_UNITS_MILLISECOND;
+
+	st->poll_interval = -1;
+
 	return 0;
 
 }
@@ -377,6 +397,8 @@ int hid_sensor_parse_common_attributes(s
 					HID_USAGE_SENSOR_PROY_POWER_STATE,
 					&st->power_state);
 
+	st->raw_hystersis = -1;
+
 	sensor_hub_input_get_attribute_info(hsdev,
 			HID_FEATURE_REPORT, usage_id,
 			HID_USAGE_SENSOR_PROP_SENSITIVITY_ABS,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c linux-libre-4.9.52-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
--- linux-libre-4.9-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/common/hid-sensors/hid-sensor-trigger.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,8 +36,6 @@ static int _hid_sensor_power_state(struc
 	s32 poll_value = 0;
 
 	if (state) {
-		if (!atomic_read(&st->user_requested_state))
-			return 0;
 		if (sensor_hub_device_open(st->hsdev))
 			return -EIO;
 
@@ -86,6 +84,9 @@ static int _hid_sensor_power_state(struc
 				       &report_val);
 	}
 
+	pr_debug("HID_SENSOR %s set power_state %d report_state %d\n",
+		 st->pdev->name, state_val, report_val);
+
 	sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
 			       st->power_state.index,
 			       sizeof(state_val), &state_val);
@@ -107,6 +108,7 @@ int hid_sensor_power_state(struct hid_se
 		ret = pm_runtime_get_sync(&st->pdev->dev);
 	else {
 		pm_runtime_mark_last_busy(&st->pdev->dev);
+		pm_runtime_use_autosuspend(&st->pdev->dev);
 		ret = pm_runtime_put_autosuspend(&st->pdev->dev);
 	}
 	if (ret < 0) {
@@ -127,6 +129,20 @@ static void hid_sensor_set_power_work(st
 	struct hid_sensor_common *attrb = container_of(work,
 						       struct hid_sensor_common,
 						       work);
+
+	if (attrb->poll_interval >= 0)
+		sensor_hub_set_feature(attrb->hsdev, attrb->poll.report_id,
+				       attrb->poll.index,
+				       sizeof(attrb->poll_interval),
+				       &attrb->poll_interval);
+
+	if (attrb->raw_hystersis >= 0)
+		sensor_hub_set_feature(attrb->hsdev,
+				       attrb->sensitivity.report_id,
+				       attrb->sensitivity.index,
+				       sizeof(attrb->raw_hystersis),
+				       &attrb->raw_hystersis);
+
 	_hid_sensor_power_state(attrb, true);
 }
 
@@ -187,8 +203,6 @@ int hid_sensor_setup_trigger(struct iio_
 	/* Default to 3 seconds, but can be changed from sysfs */
 	pm_runtime_set_autosuspend_delay(&attrb->pdev->dev,
 					 3000);
-	pm_runtime_use_autosuspend(&attrb->pdev->dev);
-
 	return ret;
 error_unreg_trigger:
 	iio_trigger_unregister(trig);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/common/st_sensors/st_sensors_buffer.c linux-libre-4.9.52-gnu/drivers/iio/common/st_sensors/st_sensors_buffer.c
--- linux-libre-4.9-gnu/drivers/iio/common/st_sensors/st_sensors_buffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/common/st_sensors/st_sensors_buffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -30,7 +30,9 @@ static int st_sensors_get_buffer_element
 
 	for_each_set_bit(i, indio_dev->active_scan_mask, num_data_channels) {
 		const struct iio_chan_spec *channel = &indio_dev->channels[i];
-		unsigned int bytes_to_read = channel->scan_type.realbits >> 3;
+		unsigned int bytes_to_read =
+			DIV_ROUND_UP(channel->scan_type.realbits +
+				     channel->scan_type.shift, 8);
 		unsigned int storage_bytes =
 			channel->scan_type.storagebits >> 3;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/common/st_sensors/st_sensors_core.c linux-libre-4.9.52-gnu/drivers/iio/common/st_sensors/st_sensors_core.c
--- linux-libre-4.9-gnu/drivers/iio/common/st_sensors/st_sensors_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/common/st_sensors/st_sensors_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -401,6 +401,15 @@ int st_sensors_init_sensor(struct iio_de
 			return err;
 	}
 
+	/* set DAS */
+	if (sdata->sensor_settings->das.addr) {
+		err = st_sensors_write_data_with_mask(indio_dev,
+					sdata->sensor_settings->das.addr,
+					sdata->sensor_settings->das.mask, 1);
+		if (err < 0)
+			return err;
+	}
+
 	if (sdata->int_pin_open_drain) {
 		dev_info(&indio_dev->dev,
 			 "set interrupt line to open drain mode\n");
@@ -483,8 +492,10 @@ static int st_sensors_read_axis_data(str
 	int err;
 	u8 *outdata;
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
-	unsigned int byte_for_channel = ch->scan_type.realbits >> 3;
+	unsigned int byte_for_channel;
 
+	byte_for_channel = DIV_ROUND_UP(ch->scan_type.realbits +
+					ch->scan_type.shift, 8);
 	outdata = kmalloc(byte_for_channel, GFP_KERNEL);
 	if (!outdata)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/dac/ad7303.c linux-libre-4.9.52-gnu/drivers/iio/dac/ad7303.c
--- linux-libre-4.9-gnu/drivers/iio/dac/ad7303.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/dac/ad7303.c	2017-09-27 08:40:05.000000000 -0400
@@ -184,9 +184,9 @@ static const struct iio_chan_spec_ext_in
 	.address = (chan),					\
 	.scan_type = {						\
 		.sign = 'u',					\
-		.realbits = '8',				\
-		.storagebits = '8',				\
-		.shift = '0',					\
+		.realbits = 8,					\
+		.storagebits = 8,				\
+		.shift = 0,					\
 	},							\
 	.ext_info = ad7303_ext_info,				\
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/gyro/bmg160_core.c linux-libre-4.9.52-gnu/drivers/iio/gyro/bmg160_core.c
--- linux-libre-4.9-gnu/drivers/iio/gyro/bmg160_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/gyro/bmg160_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -27,6 +27,7 @@
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/triggered_buffer.h>
 #include <linux/regmap.h>
+#include <linux/delay.h>
 #include "bmg160.h"
 
 #define BMG160_IRQ_NAME		"bmg160_event"
@@ -52,6 +53,9 @@
 #define BMG160_DEF_BW			100
 #define BMG160_REG_PMU_BW_RES		BIT(7)
 
+#define BMG160_GYRO_REG_RESET		0x14
+#define BMG160_GYRO_RESET_VAL		0xb6
+
 #define BMG160_REG_INT_MAP_0		0x17
 #define BMG160_INT_MAP_0_BIT_ANY	BIT(1)
 
@@ -236,6 +240,14 @@ static int bmg160_chip_init(struct bmg16
 	int ret;
 	unsigned int val;
 
+	/*
+	 * Reset chip to get it in a known good state. A delay of 30ms after
+	 * reset is required according to the datasheet.
+	 */
+	regmap_write(data->regmap, BMG160_GYRO_REG_RESET,
+		     BMG160_GYRO_RESET_VAL);
+	usleep_range(30000, 30700);
+
 	ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val);
 	if (ret < 0) {
 		dev_err(dev, "Error reading reg_chip_id\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/health/afe4403.c linux-libre-4.9.52-gnu/drivers/iio/health/afe4403.c
--- linux-libre-4.9-gnu/drivers/iio/health/afe4403.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/health/afe4403.c	2017-09-27 08:40:05.000000000 -0400
@@ -422,7 +422,7 @@ MODULE_DEVICE_TABLE(of, afe4403_of_match
 
 static int __maybe_unused afe4403_suspend(struct device *dev)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = spi_get_drvdata(to_spi_device(dev));
 	struct afe4403_data *afe = iio_priv(indio_dev);
 	int ret;
 
@@ -443,7 +443,7 @@ static int __maybe_unused afe4403_suspen
 
 static int __maybe_unused afe4403_resume(struct device *dev)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = spi_get_drvdata(to_spi_device(dev));
 	struct afe4403_data *afe = iio_priv(indio_dev);
 	int ret;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/health/afe4404.c linux-libre-4.9.52-gnu/drivers/iio/health/afe4404.c
--- linux-libre-4.9-gnu/drivers/iio/health/afe4404.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/health/afe4404.c	2017-09-27 08:40:05.000000000 -0400
@@ -428,7 +428,7 @@ MODULE_DEVICE_TABLE(of, afe4404_of_match
 
 static int __maybe_unused afe4404_suspend(struct device *dev)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
 	struct afe4404_data *afe = iio_priv(indio_dev);
 	int ret;
 
@@ -449,7 +449,7 @@ static int __maybe_unused afe4404_suspen
 
 static int __maybe_unused afe4404_resume(struct device *dev)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
 	struct afe4404_data *afe = iio_priv(indio_dev);
 	int ret;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/health/max30100.c linux-libre-4.9.52-gnu/drivers/iio/health/max30100.c
--- linux-libre-4.9-gnu/drivers/iio/health/max30100.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/health/max30100.c	2017-09-27 08:40:05.000000000 -0400
@@ -238,7 +238,7 @@ static irqreturn_t max30100_interrupt_ha
 
 	mutex_lock(&data->lock);
 
-	while (cnt || (cnt = max30100_fifo_count(data) > 0)) {
+	while (cnt || (cnt = max30100_fifo_count(data)) > 0) {
 		ret = max30100_read_measurement(data);
 		if (ret)
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/humidity/dht11.c linux-libre-4.9.52-gnu/drivers/iio/humidity/dht11.c
--- linux-libre-4.9-gnu/drivers/iio/humidity/dht11.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/humidity/dht11.c	2017-09-27 08:40:05.000000000 -0400
@@ -71,7 +71,8 @@
  * a) select an implementation using busy loop polling on those systems
  * b) use the checksum to do some probabilistic decoding
  */
-#define DHT11_START_TRANSMISSION	18  /* ms */
+#define DHT11_START_TRANSMISSION_MIN	18000  /* us */
+#define DHT11_START_TRANSMISSION_MAX	20000  /* us */
 #define DHT11_MIN_TIMERES	34000  /* ns */
 #define DHT11_THRESHOLD		49000  /* ns */
 #define DHT11_AMBIG_LOW		23000  /* ns */
@@ -228,7 +229,8 @@ static int dht11_read_raw(struct iio_dev
 		ret = gpio_direction_output(dht11->gpio, 0);
 		if (ret)
 			goto err;
-		msleep(DHT11_START_TRANSMISSION);
+		usleep_range(DHT11_START_TRANSMISSION_MIN,
+			     DHT11_START_TRANSMISSION_MAX);
 		ret = gpio_direction_input(dht11->gpio);
 		if (ret)
 			goto err;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/imu/adis16480.c linux-libre-4.9.52-gnu/drivers/iio/imu/adis16480.c
--- linux-libre-4.9-gnu/drivers/iio/imu/adis16480.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/imu/adis16480.c	2017-09-27 08:40:05.000000000 -0400
@@ -696,7 +696,7 @@ static const struct adis16480_chip_info
 		.gyro_max_val = IIO_RAD_TO_DEGREE(22500),
 		.gyro_max_scale = 450,
 		.accel_max_val = IIO_M_S_2_TO_G(12500),
-		.accel_max_scale = 5,
+		.accel_max_scale = 10,
 	},
 	[ADIS16485] = {
 		.channels = adis16485_channels,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/imu/bmi160/bmi160_core.c linux-libre-4.9.52-gnu/drivers/iio/imu/bmi160/bmi160_core.c
--- linux-libre-4.9-gnu/drivers/iio/imu/bmi160/bmi160_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/imu/bmi160/bmi160_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,10 +66,8 @@
 
 #define BMI160_REG_DUMMY		0x7F
 
-#define BMI160_ACCEL_PMU_MIN_USLEEP	3200
-#define BMI160_ACCEL_PMU_MAX_USLEEP	3800
-#define BMI160_GYRO_PMU_MIN_USLEEP	55000
-#define BMI160_GYRO_PMU_MAX_USLEEP	80000
+#define BMI160_ACCEL_PMU_MIN_USLEEP	3800
+#define BMI160_GYRO_PMU_MIN_USLEEP	80000
 #define BMI160_SOFTRESET_USLEEP		1000
 
 #define BMI160_CHANNEL(_type, _axis, _index) {			\
@@ -151,20 +149,9 @@ static struct bmi160_regs bmi160_regs[]
 	},
 };
 
-struct bmi160_pmu_time {
-	unsigned long min;
-	unsigned long max;
-};
-
-static struct bmi160_pmu_time bmi160_pmu_time[] = {
-	[BMI160_ACCEL] = {
-		.min = BMI160_ACCEL_PMU_MIN_USLEEP,
-		.max = BMI160_ACCEL_PMU_MAX_USLEEP
-	},
-	[BMI160_GYRO] = {
-		.min = BMI160_GYRO_PMU_MIN_USLEEP,
-		.max = BMI160_GYRO_PMU_MIN_USLEEP,
-	},
+static unsigned long bmi160_pmu_time[] = {
+	[BMI160_ACCEL] = BMI160_ACCEL_PMU_MIN_USLEEP,
+	[BMI160_GYRO] = BMI160_GYRO_PMU_MIN_USLEEP,
 };
 
 struct bmi160_scale {
@@ -289,7 +276,7 @@ int bmi160_set_mode(struct bmi160_data *
 	if (ret < 0)
 		return ret;
 
-	usleep_range(bmi160_pmu_time[t].min, bmi160_pmu_time[t].max);
+	usleep_range(bmi160_pmu_time[t], bmi160_pmu_time[t] + 1000);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c linux-libre-4.9.52-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
--- linux-libre-4.9-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -41,6 +41,7 @@ static const int accel_scale[] = {598, 1
 static const struct inv_mpu6050_reg_map reg_set_6500 = {
 	.sample_rate_div	= INV_MPU6050_REG_SAMPLE_RATE_DIV,
 	.lpf                    = INV_MPU6050_REG_CONFIG,
+	.accel_lpf              = INV_MPU6500_REG_ACCEL_CONFIG_2,
 	.user_ctrl              = INV_MPU6050_REG_USER_CTRL,
 	.fifo_en                = INV_MPU6050_REG_FIFO_EN,
 	.gyro_config            = INV_MPU6050_REG_GYRO_CONFIG,
@@ -205,6 +206,37 @@ int inv_mpu6050_set_power_itg(struct inv
 EXPORT_SYMBOL_GPL(inv_mpu6050_set_power_itg);
 
 /**
+ *  inv_mpu6050_set_lpf_regs() - set low pass filter registers, chip dependent
+ *
+ *  MPU60xx/MPU9150 use only 1 register for accelerometer + gyroscope
+ *  MPU6500 and above have a dedicated register for accelerometer
+ */
+static int inv_mpu6050_set_lpf_regs(struct inv_mpu6050_state *st,
+				    enum inv_mpu6050_filter_e val)
+{
+	int result;
+
+	result = regmap_write(st->map, st->reg->lpf, val);
+	if (result)
+		return result;
+
+	switch (st->chip_type) {
+	case INV_MPU6050:
+	case INV_MPU6000:
+	case INV_MPU9150:
+		/* old chips, nothing to do */
+		result = 0;
+		break;
+	default:
+		/* set accel lpf */
+		result = regmap_write(st->map, st->reg->accel_lpf, val);
+		break;
+	}
+
+	return result;
+}
+
+/**
  *  inv_mpu6050_init_config() - Initialize hardware, disable FIFO.
  *
  *  Initial configuration:
@@ -227,8 +259,7 @@ static int inv_mpu6050_init_config(struc
 	if (result)
 		return result;
 
-	d = INV_MPU6050_FILTER_20HZ;
-	result = regmap_write(st->map, st->reg->lpf, d);
+	result = inv_mpu6050_set_lpf_regs(st, INV_MPU6050_FILTER_20HZ);
 	if (result)
 		return result;
 
@@ -531,6 +562,8 @@ error_write_raw:
  *                  would be alising. This function basically search for the
  *                  correct low pass parameters based on the fifo rate, e.g,
  *                  sampling frequency.
+ *
+ *  lpf is set automatically when setting sampling rate to avoid any aliases.
  */
 static int inv_mpu6050_set_lpf(struct inv_mpu6050_state *st, int rate)
 {
@@ -546,7 +579,7 @@ static int inv_mpu6050_set_lpf(struct in
 	while ((h < hz[i]) && (i < ARRAY_SIZE(d) - 1))
 		i++;
 	data = d[i];
-	result = regmap_write(st->map, st->reg->lpf, data);
+	result = inv_mpu6050_set_lpf_regs(st, data);
 	if (result)
 		return result;
 	st->chip_config.lpf = data;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h linux-libre-4.9.52-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
--- linux-libre-4.9-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h	2017-09-27 08:40:05.000000000 -0400
@@ -28,6 +28,7 @@
  *  struct inv_mpu6050_reg_map - Notable registers.
  *  @sample_rate_div:	Divider applied to gyro output rate.
  *  @lpf:		Configures internal low pass filter.
+ *  @accel_lpf:		Configures accelerometer low pass filter.
  *  @user_ctrl:		Enables/resets the FIFO.
  *  @fifo_en:		Determines which data will appear in FIFO.
  *  @gyro_config:	gyro config register.
@@ -47,6 +48,7 @@
 struct inv_mpu6050_reg_map {
 	u8 sample_rate_div;
 	u8 lpf;
+	u8 accel_lpf;
 	u8 user_ctrl;
 	u8 fifo_en;
 	u8 gyro_config;
@@ -187,6 +189,7 @@ struct inv_mpu6050_state {
 #define INV_MPU6050_FIFO_THRESHOLD           500
 
 /* mpu6500 registers */
+#define INV_MPU6500_REG_ACCEL_CONFIG_2      0x1D
 #define INV_MPU6500_REG_ACCEL_OFFSET        0x77
 
 /* delay time in milliseconds */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/light/ltr501.c linux-libre-4.9.52-gnu/drivers/iio/light/ltr501.c
--- linux-libre-4.9-gnu/drivers/iio/light/ltr501.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/light/ltr501.c	2017-09-27 08:40:05.000000000 -0400
@@ -74,9 +74,9 @@ static const int int_time_mapping[] = {1
 static const struct reg_field reg_field_it =
 				REG_FIELD(LTR501_ALS_MEAS_RATE, 3, 4);
 static const struct reg_field reg_field_als_intr =
-				REG_FIELD(LTR501_INTR, 0, 0);
-static const struct reg_field reg_field_ps_intr =
 				REG_FIELD(LTR501_INTR, 1, 1);
+static const struct reg_field reg_field_ps_intr =
+				REG_FIELD(LTR501_INTR, 0, 0);
 static const struct reg_field reg_field_als_rate =
 				REG_FIELD(LTR501_ALS_MEAS_RATE, 0, 2);
 static const struct reg_field reg_field_ps_rate =
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/light/max44000.c linux-libre-4.9.52-gnu/drivers/iio/light/max44000.c
--- linux-libre-4.9-gnu/drivers/iio/light/max44000.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/light/max44000.c	2017-09-27 08:40:05.000000000 -0400
@@ -113,7 +113,7 @@ static const char max44000_int_time_avai
 	"0.100 "
 	"0.025 "
 	"0.00625 "
-	"0.001625";
+	"0.0015625";
 
 /* Available scales (internal to ulux) with pretty manual alignment: */
 static const int max44000_scale_avail_ulux_array[] = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/light/tsl2563.c linux-libre-4.9.52-gnu/drivers/iio/light/tsl2563.c
--- linux-libre-4.9-gnu/drivers/iio/light/tsl2563.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/light/tsl2563.c	2017-09-27 08:40:05.000000000 -0400
@@ -626,7 +626,7 @@ static irqreturn_t tsl2563_event_handler
 	struct tsl2563_chip *chip = iio_priv(dev_info);
 
 	iio_push_event(dev_info,
-		       IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
+		       IIO_UNMOD_EVENT_CODE(IIO_INTENSITY,
 					    0,
 					    IIO_EV_TYPE_THRESH,
 					    IIO_EV_DIR_EITHER),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/magnetometer/ak8974.c linux-libre-4.9.52-gnu/drivers/iio/magnetometer/ak8974.c
--- linux-libre-4.9-gnu/drivers/iio/magnetometer/ak8974.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/magnetometer/ak8974.c	2017-09-27 08:40:05.000000000 -0400
@@ -767,7 +767,7 @@ power_off:
 	return ret;
 }
 
-static int __exit ak8974_remove(struct i2c_client *i2c)
+static int ak8974_remove(struct i2c_client *i2c)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(i2c);
 	struct ak8974 *ak8974 = iio_priv(indio_dev);
@@ -849,7 +849,7 @@ static struct i2c_driver ak8974_driver =
 		.of_match_table = of_match_ptr(ak8974_of_match),
 	},
 	.probe	  = ak8974_probe,
-	.remove	  = __exit_p(ak8974_remove),
+	.remove	  = ak8974_remove,
 	.id_table = ak8974_id,
 };
 module_i2c_driver(ak8974_driver);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/pressure/bmp280-core.c linux-libre-4.9.52-gnu/drivers/iio/pressure/bmp280-core.c
--- linux-libre-4.9-gnu/drivers/iio/pressure/bmp280-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/pressure/bmp280-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -175,11 +175,12 @@ static u32 bmp280_compensate_humidity(st
 	}
 	H6 = sign_extend32(tmp, 7);
 
-	var = ((s32)data->t_fine) - 76800;
-	var = ((((adc_humidity << 14) - (H4 << 20) - (H5 * var)) + 16384) >> 15)
-		* (((((((var * H6) >> 10) * (((var * H3) >> 11) + 32768)) >> 10)
-		+ 2097152) * H2 + 8192) >> 14);
-	var -= ((((var >> 15) * (var >> 15)) >> 7) * H1) >> 4;
+	var = ((s32)data->t_fine) - (s32)76800;
+	var = ((((adc_humidity << 14) - (H4 << 20) - (H5 * var))
+		+ (s32)16384) >> 15) * (((((((var * H6) >> 10)
+		* (((var * (s32)H3) >> 11) + (s32)32768)) >> 10)
+		+ (s32)2097152) * H2 + 8192) >> 14);
+	var -= ((((var >> 15) * (var >> 15)) >> 7) * (s32)H1) >> 4;
 
 	return var >> 12;
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/pressure/mpl115.c linux-libre-4.9.52-gnu/drivers/iio/pressure/mpl115.c
--- linux-libre-4.9-gnu/drivers/iio/pressure/mpl115.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/pressure/mpl115.c	2017-09-27 08:40:05.000000000 -0400
@@ -137,6 +137,7 @@ static const struct iio_chan_spec mpl115
 	{
 		.type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.info_mask_shared_by_type =
 			BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE),
 	},
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/pressure/mpl3115.c linux-libre-4.9.52-gnu/drivers/iio/pressure/mpl3115.c
--- linux-libre-4.9-gnu/drivers/iio/pressure/mpl3115.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/pressure/mpl3115.c	2017-09-27 08:40:05.000000000 -0400
@@ -182,7 +182,7 @@ static const struct iio_chan_spec mpl311
 	{
 		.type = IIO_PRESSURE,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			BIT(IIO_CHAN_INFO_SCALE),
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
 		.scan_index = 0,
 		.scan_type = {
 			.sign = 'u',
@@ -195,7 +195,7 @@ static const struct iio_chan_spec mpl311
 	{
 		.type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			BIT(IIO_CHAN_INFO_SCALE),
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
 		.scan_index = 1,
 		.scan_type = {
 			.sign = 's',
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/pressure/st_pressure_core.c linux-libre-4.9.52-gnu/drivers/iio/pressure/st_pressure_core.c
--- linux-libre-4.9-gnu/drivers/iio/pressure/st_pressure_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/pressure/st_pressure_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -227,7 +227,7 @@ static const struct iio_chan_spec st_pre
 		.address = ST_PRESS_1_OUT_XL_ADDR,
 		.scan_index = 0,
 		.scan_type = {
-			.sign = 'u',
+			.sign = 's',
 			.realbits = 24,
 			.storagebits = 32,
 			.endianness = IIO_LE,
@@ -240,7 +240,7 @@ static const struct iio_chan_spec st_pre
 		.address = ST_TEMP_1_OUT_L_ADDR,
 		.scan_index = 1,
 		.scan_type = {
-			.sign = 'u',
+			.sign = 's',
 			.realbits = 16,
 			.storagebits = 16,
 			.endianness = IIO_LE,
@@ -259,7 +259,7 @@ static const struct iio_chan_spec st_pre
 		.address = ST_PRESS_LPS001WP_OUT_L_ADDR,
 		.scan_index = 0,
 		.scan_type = {
-			.sign = 'u',
+			.sign = 's',
 			.realbits = 16,
 			.storagebits = 16,
 			.endianness = IIO_LE,
@@ -273,7 +273,7 @@ static const struct iio_chan_spec st_pre
 		.address = ST_TEMP_LPS001WP_OUT_L_ADDR,
 		.scan_index = 1,
 		.scan_type = {
-			.sign = 'u',
+			.sign = 's',
 			.realbits = 16,
 			.storagebits = 16,
 			.endianness = IIO_LE,
@@ -291,7 +291,7 @@ static const struct iio_chan_spec st_pre
 		.address = ST_PRESS_1_OUT_XL_ADDR,
 		.scan_index = 0,
 		.scan_type = {
-			.sign = 'u',
+			.sign = 's',
 			.realbits = 24,
 			.storagebits = 32,
 			.endianness = IIO_LE,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iio/proximity/as3935.c linux-libre-4.9.52-gnu/drivers/iio/proximity/as3935.c
--- linux-libre-4.9-gnu/drivers/iio/proximity/as3935.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iio/proximity/as3935.c	2017-09-27 08:40:05.000000000 -0400
@@ -40,9 +40,9 @@
 #define AS3935_AFE_PWR_BIT	BIT(0)
 
 #define AS3935_INT		0x03
-#define AS3935_INT_MASK		0x07
+#define AS3935_INT_MASK		0x0f
 #define AS3935_EVENT_INT	BIT(3)
-#define AS3935_NOISE_INT	BIT(1)
+#define AS3935_NOISE_INT	BIT(0)
 
 #define AS3935_DATA		0x07
 #define AS3935_DATA_MASK	0x3F
@@ -50,7 +50,6 @@
 #define AS3935_TUNE_CAP		0x08
 #define AS3935_CALIBRATE	0x3D
 
-#define AS3935_WRITE_DATA	BIT(15)
 #define AS3935_READ_DATA	BIT(14)
 #define AS3935_ADDRESS(x)	((x) << 8)
 
@@ -105,7 +104,7 @@ static int as3935_write(struct as3935_st
 {
 	u8 *buf = st->buf;
 
-	buf[0] = (AS3935_WRITE_DATA | AS3935_ADDRESS(reg)) >> 8;
+	buf[0] = AS3935_ADDRESS(reg) >> 8;
 	buf[1] = val;
 
 	return spi_write(st->spi, buf, 2);
@@ -216,7 +215,7 @@ static irqreturn_t as3935_trigger_handle
 
 	st->buffer[0] = val & AS3935_DATA_MASK;
 	iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer,
-					   pf->timestamp);
+					   iio_get_time_ns(indio_dev));
 err_read:
 	iio_trigger_notify_done(indio_dev->trig);
 
@@ -245,7 +244,7 @@ static void as3935_event_work(struct wor
 
 	switch (val) {
 	case AS3935_EVENT_INT:
-		iio_trigger_poll(st->trig);
+		iio_trigger_poll_chained(st->trig);
 		break;
 	case AS3935_NOISE_INT:
 		dev_warn(&st->spi->dev, "noise level is too high\n");
@@ -270,8 +269,6 @@ static irqreturn_t as3935_interrupt_hand
 
 static void calibrate_as3935(struct as3935_state *st)
 {
-	mutex_lock(&st->lock);
-
 	/* mask disturber interrupt bit */
 	as3935_write(st, AS3935_INT, BIT(5));
 
@@ -281,8 +278,6 @@ static void calibrate_as3935(struct as39
 
 	mdelay(2);
 	as3935_write(st, AS3935_TUNE_CAP, (st->tune_cap / TUNE_CAP_DIV));
-
-	mutex_unlock(&st->lock);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -319,6 +314,8 @@ static int as3935_resume(struct device *
 	val &= ~AS3935_AFE_PWR_BIT;
 	ret = as3935_write(st, AS3935_AFE_GAIN, val);
 
+	calibrate_as3935(st);
+
 err_resume:
 	mutex_unlock(&st->lock);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/addr.c linux-libre-4.9.52-gnu/drivers/infiniband/core/addr.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/addr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/addr.c	2017-09-27 08:40:05.000000000 -0400
@@ -444,17 +444,12 @@ static int addr6_resolve(struct sockaddr
 	fl6.saddr = src_in->sin6_addr;
 	fl6.flowi6_oif = addr->bound_dev_if;
 
-	dst = ip6_route_output(addr->net, NULL, &fl6);
-	if ((ret = dst->error))
-		goto put;
+	ret = ipv6_stub->ipv6_dst_lookup(addr->net, NULL, &dst, &fl6);
+	if (ret < 0)
+		return ret;
 
 	rt = (struct rt6_info *)dst;
-	if (ipv6_addr_any(&fl6.saddr)) {
-		ret = ipv6_dev_get_saddr(addr->net, ip6_dst_idev(dst)->dev,
-					 &fl6.daddr, 0, &fl6.saddr);
-		if (ret)
-			goto put;
-
+	if (ipv6_addr_any(&src_in->sin6_addr)) {
 		src_in->sin6_family = AF_INET6;
 		src_in->sin6_addr = fl6.saddr;
 	}
@@ -471,9 +466,6 @@ static int addr6_resolve(struct sockaddr
 
 	*pdst = dst;
 	return 0;
-put:
-	dst_release(dst);
-	return ret;
 }
 #else
 static int addr6_resolve(struct sockaddr_in6 *src_in,
@@ -518,6 +510,11 @@ static int addr_resolve(struct sockaddr
 	struct dst_entry *dst;
 	int ret;
 
+	if (!addr->net) {
+		pr_warn_ratelimited("%s: missing namespace\n", __func__);
+		return -EINVAL;
+	}
+
 	if (src_in->sa_family == AF_INET) {
 		struct rtable *rt = NULL;
 		const struct sockaddr_in *dst_in4 =
@@ -555,7 +552,6 @@ static int addr_resolve(struct sockaddr
 	}
 
 	addr->bound_dev_if = ndev->ifindex;
-	addr->net = dev_net(ndev);
 	dev_put(ndev);
 
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/cache.c linux-libre-4.9.52-gnu/drivers/infiniband/core/cache.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/cache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/cache.c	2017-09-27 08:40:05.000000000 -0400
@@ -770,12 +770,8 @@ static int _gid_table_setup_one(struct i
 	int err = 0;
 
 	table = kcalloc(ib_dev->phys_port_cnt, sizeof(*table), GFP_KERNEL);
-
-	if (!table) {
-		pr_warn("failed to allocate ib gid cache for %s\n",
-			ib_dev->name);
+	if (!table)
 		return -ENOMEM;
-	}
 
 	for (port = 0; port < ib_dev->phys_port_cnt; port++) {
 		u8 rdma_port = port + rdma_start_port(ib_dev);
@@ -1170,14 +1166,13 @@ int ib_cache_setup_one(struct ib_device
 					  GFP_KERNEL);
 	if (!device->cache.pkey_cache ||
 	    !device->cache.lmc_cache) {
-		pr_warn("Couldn't allocate cache for %s\n", device->name);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto free;
 	}
 
 	err = gid_table_setup_one(device);
 	if (err)
-		/* Allocated memory will be cleaned in the release function */
-		return err;
+		goto free;
 
 	for (p = 0; p <= rdma_end_port(device) - rdma_start_port(device); ++p)
 		ib_cache_update(device, p + rdma_start_port(device));
@@ -1192,6 +1187,9 @@ int ib_cache_setup_one(struct ib_device
 
 err:
 	gid_table_cleanup_one(device);
+free:
+	kfree(device->cache.pkey_cache);
+	kfree(device->cache.lmc_cache);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/cma.c linux-libre-4.9.52-gnu/drivers/infiniband/core/cma.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/cma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/cma.c	2017-09-27 08:40:05.000000000 -0400
@@ -976,6 +976,8 @@ int rdma_init_qp_attr(struct rdma_cm_id
 		} else
 			ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr,
 						 qp_attr_mask);
+		qp_attr->port_num = id_priv->id.port_num;
+		*qp_attr_mask |= IB_QP_PORT;
 	} else
 		ret = -ENOSYS;
 
@@ -2768,7 +2770,8 @@ static int cma_bind_addr(struct rdma_cm_
 	if (!src_addr || !src_addr->sa_family) {
 		src_addr = (struct sockaddr *) &id->route.addr.src_addr;
 		src_addr->sa_family = dst_addr->sa_family;
-		if (dst_addr->sa_family == AF_INET6) {
+		if (IS_ENABLED(CONFIG_IPV6) &&
+		    dst_addr->sa_family == AF_INET6) {
 			struct sockaddr_in6 *src_addr6 = (struct sockaddr_in6 *) src_addr;
 			struct sockaddr_in6 *dst_addr6 = (struct sockaddr_in6 *) dst_addr;
 			src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;
@@ -3539,6 +3542,9 @@ static int cma_accept_iw(struct rdma_id_
 	struct iw_cm_conn_param iw_param;
 	int ret;
 
+	if (!conn_param)
+		return -EINVAL;
+
 	ret = cma_modify_qp_rtr(id_priv, conn_param);
 	if (ret)
 		return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/mad.c linux-libre-4.9.52-gnu/drivers/infiniband/core/mad.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/mad.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/mad.c	2017-09-27 08:40:05.000000000 -0400
@@ -1746,7 +1746,7 @@ find_mad_agent(struct ib_mad_port_privat
 			if (!class)
 				goto out;
 			if (convert_mgmt_class(mad_hdr->mgmt_class) >=
-			    IB_MGMT_MAX_METHODS)
+			    ARRAY_SIZE(class->method_table))
 				goto out;
 			method = class->method_table[convert_mgmt_class(
 							mad_hdr->mgmt_class)];
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/multicast.c linux-libre-4.9.52-gnu/drivers/infiniband/core/multicast.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/multicast.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/multicast.c	2017-09-27 08:40:05.000000000 -0400
@@ -518,8 +518,11 @@ static void join_handler(int status, str
 		process_join_error(group, status);
 	else {
 		int mgids_changed, is_mgid0;
-		ib_find_pkey(group->port->dev->device, group->port->port_num,
-			     be16_to_cpu(rec->pkey), &pkey_index);
+
+		if (ib_find_pkey(group->port->dev->device,
+				 group->port->port_num, be16_to_cpu(rec->pkey),
+				 &pkey_index))
+			pkey_index = MCAST_INVALID_PKEY_INDEX;
 
 		spin_lock_irq(&group->port->lock);
 		if (group->state == MCAST_BUSY &&
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/sysfs.c linux-libre-4.9.52-gnu/drivers/infiniband/core/sysfs.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1301,7 +1301,7 @@ err_put:
 	free_port_list_attributes(device);
 
 err_unregister:
-	device_unregister(class_dev);
+	device_del(class_dev);
 
 err:
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/umem.c linux-libre-4.9.52-gnu/drivers/infiniband/core/umem.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/umem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/umem.c	2017-09-27 08:40:05.000000000 -0400
@@ -134,6 +134,7 @@ struct ib_umem *ib_umem_get(struct ib_uc
 		 IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_MW_BIND));
 
 	if (access & IB_ACCESS_ON_DEMAND) {
+		put_pid(umem->pid);
 		ret = ib_umem_odp_get(context, umem);
 		if (ret) {
 			kfree(umem);
@@ -149,6 +150,7 @@ struct ib_umem *ib_umem_get(struct ib_uc
 
 	page_list = (struct page **) __get_free_page(GFP_KERNEL);
 	if (!page_list) {
+		put_pid(umem->pid);
 		kfree(umem);
 		return ERR_PTR(-ENOMEM);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/uverbs_cmd.c linux-libre-4.9.52-gnu/drivers/infiniband/core/uverbs_cmd.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/uverbs_cmd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/uverbs_cmd.c	2017-09-27 08:40:05.000000000 -0400
@@ -2342,6 +2342,11 @@ ssize_t ib_uverbs_modify_qp(struct ib_uv
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
+	if ((cmd.attr_mask & IB_QP_PORT) &&
+	    (cmd.port_num < rdma_start_port(ib_dev) ||
+	     cmd.port_num > rdma_end_port(ib_dev)))
+		return -EINVAL;
+
 	INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd,
 		   out_len);
 
@@ -2882,6 +2887,10 @@ ssize_t ib_uverbs_create_ah(struct ib_uv
 	if (copy_from_user(&cmd, buf, sizeof cmd))
 		return -EFAULT;
 
+	if (cmd.attr.port_num < rdma_start_port(ib_dev) ||
+	    cmd.attr.port_num > rdma_end_port(ib_dev))
+		return -EINVAL;
+
 	uobj = kmalloc(sizeof *uobj, GFP_KERNEL);
 	if (!uobj)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/core/verbs.c linux-libre-4.9.52-gnu/drivers/infiniband/core/verbs.c
--- linux-libre-4.9-gnu/drivers/infiniband/core/verbs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/core/verbs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1516,7 +1516,9 @@ int ib_attach_mcast(struct ib_qp *qp, un
 
 	if (!qp->device->attach_mcast)
 		return -ENOSYS;
-	if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
+	if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD ||
+	    lid < be16_to_cpu(IB_MULTICAST_LID_BASE) ||
+	    lid == be16_to_cpu(IB_LID_PERMISSIVE))
 		return -EINVAL;
 
 	ret = qp->device->attach_mcast(qp, gid, lid);
@@ -1532,7 +1534,9 @@ int ib_detach_mcast(struct ib_qp *qp, un
 
 	if (!qp->device->detach_mcast)
 		return -ENOSYS;
-	if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
+	if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD ||
+	    lid < be16_to_cpu(IB_MULTICAST_LID_BASE) ||
+	    lid == be16_to_cpu(IB_LID_PERMISSIVE))
 		return -EINVAL;
 
 	ret = qp->device->detach_mcast(qp, gid, lid);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/cm.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/cm.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/cm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/cm.c	2017-09-27 08:40:05.000000000 -0400
@@ -1804,20 +1804,21 @@ static int rx_data(struct c4iw_dev *dev,
 	skb_trim(skb, dlen);
 	mutex_lock(&ep->com.mutex);
 
-	/* update RX credits */
-	update_rx_credits(ep, dlen);
-
 	switch (ep->com.state) {
 	case MPA_REQ_SENT:
+		update_rx_credits(ep, dlen);
 		ep->rcv_seq += dlen;
 		disconnect = process_mpa_reply(ep, skb);
 		break;
 	case MPA_REQ_WAIT:
+		update_rx_credits(ep, dlen);
 		ep->rcv_seq += dlen;
 		disconnect = process_mpa_request(ep, skb);
 		break;
 	case FPDU_MODE: {
 		struct c4iw_qp_attributes attrs;
+
+		update_rx_credits(ep, dlen);
 		BUG_ON(!ep->com.qp);
 		if (status)
 			pr_err("%s Unexpected streaming data." \
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/device.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/device.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/device.c	2017-09-27 08:40:05.000000000 -0400
@@ -828,8 +828,10 @@ static int c4iw_rdev_open(struct c4iw_rd
 	}
 	rdev->status_page = (struct t4_dev_status_page *)
 			    __get_free_page(GFP_KERNEL);
-	if (!rdev->status_page)
+	if (!rdev->status_page) {
+		err = -ENOMEM;
 		goto destroy_ocqp_pool;
+	}
 	rdev->status_page->qp_start = rdev->lldi.vr->qp.start;
 	rdev->status_page->qp_size = rdev->lldi.vr->qp.size;
 	rdev->status_page->cq_start = rdev->lldi.vr->cq.start;
@@ -846,9 +848,17 @@ static int c4iw_rdev_open(struct c4iw_rd
 		}
 	}
 
+	rdev->free_workq = create_singlethread_workqueue("iw_cxgb4_free");
+	if (!rdev->free_workq) {
+		err = -ENOMEM;
+		goto err_free_status_page;
+	}
+
 	rdev->status_page->db_off = 0;
 
 	return 0;
+err_free_status_page:
+	free_page((unsigned long)rdev->status_page);
 destroy_ocqp_pool:
 	c4iw_ocqp_pool_destroy(rdev);
 destroy_rqtpool:
@@ -862,6 +872,7 @@ destroy_resource:
 
 static void c4iw_rdev_close(struct c4iw_rdev *rdev)
 {
+	destroy_workqueue(rdev->free_workq);
 	kfree(rdev->wr_log);
 	free_page((unsigned long)rdev->status_page);
 	c4iw_pblpool_destroy(rdev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/iw_cxgb4.h linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
--- linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/iw_cxgb4.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/iw_cxgb4.h	2017-09-27 08:40:05.000000000 -0400
@@ -45,6 +45,7 @@
 #include <linux/kref.h>
 #include <linux/timer.h>
 #include <linux/io.h>
+#include <linux/workqueue.h>
 
 #include <asm/byteorder.h>
 
@@ -107,6 +108,7 @@ struct c4iw_dev_ucontext {
 	struct list_head qpids;
 	struct list_head cqids;
 	struct mutex lock;
+	struct kref kref;
 };
 
 enum c4iw_rdev_flags {
@@ -183,6 +185,7 @@ struct c4iw_rdev {
 	atomic_t wr_log_idx;
 	struct wr_log_entry *wr_log;
 	int wr_log_size;
+	struct workqueue_struct *free_workq;
 };
 
 static inline int c4iw_fatal_error(struct c4iw_rdev *rdev)
@@ -482,6 +485,8 @@ struct c4iw_qp {
 	int sq_sig_all;
 	struct completion rq_drained;
 	struct completion sq_drained;
+	struct work_struct free_work;
+	struct c4iw_ucontext *ucontext;
 };
 
 static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
@@ -495,6 +500,7 @@ struct c4iw_ucontext {
 	u32 key;
 	spinlock_t mmap_lock;
 	struct list_head mmaps;
+	struct kref kref;
 };
 
 static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c)
@@ -502,6 +508,18 @@ static inline struct c4iw_ucontext *to_c
 	return container_of(c, struct c4iw_ucontext, ibucontext);
 }
 
+void _c4iw_free_ucontext(struct kref *kref);
+
+static inline void c4iw_put_ucontext(struct c4iw_ucontext *ucontext)
+{
+	kref_put(&ucontext->kref, _c4iw_free_ucontext);
+}
+
+static inline void c4iw_get_ucontext(struct c4iw_ucontext *ucontext)
+{
+	kref_get(&ucontext->kref);
+}
+
 struct c4iw_mm_entry {
 	struct list_head entry;
 	u64 addr;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/provider.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/provider.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/provider.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/provider.c	2017-09-27 08:40:05.000000000 -0400
@@ -91,17 +91,28 @@ static int c4iw_process_mad(struct ib_de
 	return -ENOSYS;
 }
 
-static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
+void _c4iw_free_ucontext(struct kref *kref)
 {
-	struct c4iw_dev *rhp = to_c4iw_dev(context->device);
-	struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
+	struct c4iw_ucontext *ucontext;
+	struct c4iw_dev *rhp;
 	struct c4iw_mm_entry *mm, *tmp;
 
-	PDBG("%s context %p\n", __func__, context);
+	ucontext = container_of(kref, struct c4iw_ucontext, kref);
+	rhp = to_c4iw_dev(ucontext->ibucontext.device);
+
+	PDBG("%s ucontext %p\n", __func__, ucontext);
 	list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
 		kfree(mm);
 	c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
 	kfree(ucontext);
+}
+
+static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
+{
+	struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
+
+	PDBG("%s context %p\n", __func__, context);
+	c4iw_put_ucontext(ucontext);
 	return 0;
 }
 
@@ -125,6 +136,7 @@ static struct ib_ucontext *c4iw_alloc_uc
 	c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
 	INIT_LIST_HEAD(&context->mmaps);
 	spin_lock_init(&context->mmap_lock);
+	kref_init(&context->kref);
 
 	if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
 		if (!warned++)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/qp.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/qp.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/cxgb4/qp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/cxgb4/qp.c	2017-09-27 08:40:05.000000000 -0400
@@ -321,7 +321,8 @@ static int create_qp(struct c4iw_rdev *r
 		FW_RI_RES_WR_DCAEN_V(0) |
 		FW_RI_RES_WR_DCACPU_V(0) |
 		FW_RI_RES_WR_FBMIN_V(2) |
-		FW_RI_RES_WR_FBMAX_V(2) |
+		(t4_sq_onchip(&wq->sq) ? FW_RI_RES_WR_FBMAX_V(2) :
+					 FW_RI_RES_WR_FBMAX_V(3)) |
 		FW_RI_RES_WR_CIDXFTHRESHO_V(0) |
 		FW_RI_RES_WR_CIDXFTHRESH_V(0) |
 		FW_RI_RES_WR_EQSIZE_V(eqsize));
@@ -345,7 +346,7 @@ static int create_qp(struct c4iw_rdev *r
 		FW_RI_RES_WR_DCAEN_V(0) |
 		FW_RI_RES_WR_DCACPU_V(0) |
 		FW_RI_RES_WR_FBMIN_V(2) |
-		FW_RI_RES_WR_FBMAX_V(2) |
+		FW_RI_RES_WR_FBMAX_V(3) |
 		FW_RI_RES_WR_CIDXFTHRESHO_V(0) |
 		FW_RI_RES_WR_CIDXFTHRESH_V(0) |
 		FW_RI_RES_WR_EQSIZE_V(eqsize));
@@ -714,13 +715,32 @@ static int build_inv_stag(union t4_wr *w
 	return 0;
 }
 
-static void _free_qp(struct kref *kref)
+static void free_qp_work(struct work_struct *work)
+{
+	struct c4iw_ucontext *ucontext;
+	struct c4iw_qp *qhp;
+	struct c4iw_dev *rhp;
+
+	qhp = container_of(work, struct c4iw_qp, free_work);
+	ucontext = qhp->ucontext;
+	rhp = qhp->rhp;
+
+	PDBG("%s qhp %p ucontext %p\n", __func__, qhp, ucontext);
+	destroy_qp(&rhp->rdev, &qhp->wq,
+		   ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
+
+	if (ucontext)
+		c4iw_put_ucontext(ucontext);
+	kfree(qhp);
+}
+
+static void queue_qp_free(struct kref *kref)
 {
 	struct c4iw_qp *qhp;
 
 	qhp = container_of(kref, struct c4iw_qp, kref);
 	PDBG("%s qhp %p\n", __func__, qhp);
-	kfree(qhp);
+	queue_work(qhp->rhp->rdev.free_workq, &qhp->free_work);
 }
 
 void c4iw_qp_add_ref(struct ib_qp *qp)
@@ -732,7 +752,7 @@ void c4iw_qp_add_ref(struct ib_qp *qp)
 void c4iw_qp_rem_ref(struct ib_qp *qp)
 {
 	PDBG("%s ib_qp %p\n", __func__, qp);
-	kref_put(&to_c4iw_qp(qp)->kref, _free_qp);
+	kref_put(&to_c4iw_qp(qp)->kref, queue_qp_free);
 }
 
 static void add_to_fc_list(struct list_head *head, struct list_head *entry)
@@ -1642,7 +1662,6 @@ int c4iw_destroy_qp(struct ib_qp *ib_qp)
 	struct c4iw_dev *rhp;
 	struct c4iw_qp *qhp;
 	struct c4iw_qp_attributes attrs;
-	struct c4iw_ucontext *ucontext;
 
 	qhp = to_c4iw_qp(ib_qp);
 	rhp = qhp->rhp;
@@ -1662,11 +1681,6 @@ int c4iw_destroy_qp(struct ib_qp *ib_qp)
 	spin_unlock_irq(&rhp->lock);
 	free_ird(rhp, qhp->attr.max_ird);
 
-	ucontext = ib_qp->uobject ?
-		   to_c4iw_ucontext(ib_qp->uobject->context) : NULL;
-	destroy_qp(&rhp->rdev, &qhp->wq,
-		   ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
-
 	c4iw_qp_rem_ref(ib_qp);
 
 	PDBG("%s ib_qp %p qpid 0x%0x\n", __func__, ib_qp, qhp->wq.sq.qid);
@@ -1767,6 +1781,7 @@ struct ib_qp *c4iw_create_qp(struct ib_p
 	mutex_init(&qhp->mutex);
 	init_waitqueue_head(&qhp->wait);
 	kref_init(&qhp->kref);
+	INIT_WORK(&qhp->free_work, free_qp_work);
 
 	ret = insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.sq.qid);
 	if (ret)
@@ -1853,6 +1868,9 @@ struct ib_qp *c4iw_create_qp(struct ib_p
 			ma_sync_key_mm->len = PAGE_SIZE;
 			insert_mmap(ucontext, ma_sync_key_mm);
 		}
+
+		c4iw_get_ucontext(ucontext);
+		qhp->ucontext = ucontext;
 	}
 	qhp->ibqp.qp_num = qhp->wq.sq.qid;
 	init_timer(&(qhp->timer));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/file_ops.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/file_ops.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/file_ops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/file_ops.c	2017-09-27 08:40:05.000000000 -0400
@@ -751,6 +751,9 @@ static int hfi1_file_close(struct inode
 	/* release the cpu */
 	hfi1_put_proc_affinity(fdata->rec_cpu_num);
 
+	/* clean up rcv side */
+	hfi1_user_exp_rcv_free(fdata);
+
 	/*
 	 * Clear any left over, unhandled events so the next process that
 	 * gets this context doesn't get confused.
@@ -790,7 +793,7 @@ static int hfi1_file_close(struct inode
 
 	dd->rcd[uctxt->ctxt] = NULL;
 
-	hfi1_user_exp_rcv_free(fdata);
+	hfi1_user_exp_rcv_grp_free(uctxt);
 	hfi1_clear_ctxt_pkey(dd, uctxt->ctxt);
 
 	uctxt->rcvwait_to = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/init.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/init.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/init.c	2017-09-27 08:40:05.000000000 -0400
@@ -1757,6 +1757,7 @@ int hfi1_setup_eagerbufs(struct hfi1_ctx
 			    !HFI1_CAP_KGET_MASK(rcd->flags, MULTI_PKT_EGR)) {
 				dd_dev_err(dd, "ctxt%u: Failed to allocate eager buffers\n",
 					   rcd->ctxt);
+				ret = -ENOMEM;
 				goto bail_rcvegrbuf_phys;
 			}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/rc.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/rc.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/rc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/rc.c	2017-09-27 08:40:05.000000000 -0400
@@ -551,7 +551,7 @@ int hfi1_make_rc_req(struct rvt_qp *qp,
 		case IB_WR_RDMA_WRITE:
 			if (newreq && !(qp->s_flags & RVT_S_UNLIMITED_CREDIT))
 				qp->s_lsn++;
-			/* FALLTHROUGH */
+			goto no_flow_control;
 		case IB_WR_RDMA_WRITE_WITH_IMM:
 			/* If no credit, return. */
 			if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT) &&
@@ -559,6 +559,7 @@ int hfi1_make_rc_req(struct rvt_qp *qp,
 				qp->s_flags |= RVT_S_WAIT_SSN_CREDIT;
 				goto bail;
 			}
+no_flow_control:
 			put_ib_reth_vaddr(
 				wqe->rdma_wr.remote_addr,
 				&ohdr->u.rc.reth);
@@ -2366,8 +2367,11 @@ send_last:
 		ret = hfi1_rvt_get_rwqe(qp, 1);
 		if (ret < 0)
 			goto nack_op_err;
-		if (!ret)
+		if (!ret) {
+			/* peer will send again */
+			rvt_put_ss(&qp->r_sge);
 			goto rnr_nak;
+		}
 		wc.ex.imm_data = ohdr->u.rc.imm_data;
 		wc.wc_flags = IB_WC_WITH_IMM;
 		goto send_last;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/ruc.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/ruc.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/ruc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/ruc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2017 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -833,23 +833,29 @@ void hfi1_make_ruc_header(struct rvt_qp
 /* when sending, force a reschedule every one of these periods */
 #define SEND_RESCHED_TIMEOUT (5 * HZ)  /* 5s in jiffies */
 
+void hfi1_do_send_from_rvt(struct rvt_qp *qp)
+{
+	hfi1_do_send(qp, false);
+}
+
 void _hfi1_do_send(struct work_struct *work)
 {
 	struct iowait *wait = container_of(work, struct iowait, iowork);
 	struct rvt_qp *qp = iowait_to_qp(wait);
 
-	hfi1_do_send(qp);
+	hfi1_do_send(qp, true);
 }
 
 /**
  * hfi1_do_send - perform a send on a QP
  * @work: contains a pointer to the QP
+ * @in_thread: true if in a workqueue thread
  *
  * Process entries in the send work queue until credit or queue is
  * exhausted.  Only allow one CPU to send a packet per QP.
  * Otherwise, two threads could send packets out of order.
  */
-void hfi1_do_send(struct rvt_qp *qp)
+void hfi1_do_send(struct rvt_qp *qp, bool in_thread)
 {
 	struct hfi1_pkt_state ps;
 	struct hfi1_qp_priv *priv = qp->priv;
@@ -917,8 +923,10 @@ void hfi1_do_send(struct rvt_qp *qp)
 			qp->s_hdrwords = 0;
 			/* allow other tasks to run */
 			if (unlikely(time_after(jiffies, timeout))) {
-				if (workqueue_congested(cpu,
-							ps.ppd->hfi1_wq)) {
+				if (!in_thread ||
+				    workqueue_congested(
+						cpu,
+						ps.ppd->hfi1_wq)) {
 					spin_lock_irqsave(
 						&qp->s_lock,
 						ps.flags);
@@ -931,11 +939,9 @@ void hfi1_do_send(struct rvt_qp *qp)
 						*ps.ppd->dd->send_schedule);
 					return;
 				}
-				if (!irqs_disabled()) {
-					cond_resched();
-					this_cpu_inc(
-					   *ps.ppd->dd->send_schedule);
-				}
+				cond_resched();
+				this_cpu_inc(
+					*ps.ppd->dd->send_schedule);
 				timeout = jiffies + (timeout_int) / 8;
 			}
 			spin_lock_irqsave(&qp->s_lock, ps.flags);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.c	2017-09-27 08:40:05.000000000 -0400
@@ -250,36 +250,40 @@ done:
 	return ret;
 }
 
+void hfi1_user_exp_rcv_grp_free(struct hfi1_ctxtdata *uctxt)
+{
+	struct tid_group *grp, *gptr;
+
+	list_for_each_entry_safe(grp, gptr, &uctxt->tid_group_list.list,
+				 list) {
+		list_del_init(&grp->list);
+		kfree(grp);
+	}
+	hfi1_clear_tids(uctxt);
+}
+
 int hfi1_user_exp_rcv_free(struct hfi1_filedata *fd)
 {
 	struct hfi1_ctxtdata *uctxt = fd->uctxt;
-	struct tid_group *grp, *gptr;
 
-	if (!test_bit(HFI1_CTXT_SETUP_DONE, &uctxt->event_flags))
-		return 0;
 	/*
 	 * The notifier would have been removed when the process'es mm
 	 * was freed.
 	 */
-	if (fd->handler)
+	if (fd->handler) {
 		hfi1_mmu_rb_unregister(fd->handler);
-
-	kfree(fd->invalid_tids);
-
-	if (!uctxt->cnt) {
+	} else {
 		if (!EXP_TID_SET_EMPTY(uctxt->tid_full_list))
 			unlock_exp_tids(uctxt, &uctxt->tid_full_list, fd);
 		if (!EXP_TID_SET_EMPTY(uctxt->tid_used_list))
 			unlock_exp_tids(uctxt, &uctxt->tid_used_list, fd);
-		list_for_each_entry_safe(grp, gptr, &uctxt->tid_group_list.list,
-					 list) {
-			list_del_init(&grp->list);
-			kfree(grp);
-		}
-		hfi1_clear_tids(uctxt);
 	}
 
+	kfree(fd->invalid_tids);
+	fd->invalid_tids = NULL;
+
 	kfree(fd->entry_to_rb);
+	fd->entry_to_rb = NULL;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.h linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.h
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/user_exp_rcv.h	2017-09-27 08:40:05.000000000 -0400
@@ -70,6 +70,7 @@
 		(tid) |= EXP_TID_SET(field, (value));			\
 	} while (0)
 
+void hfi1_user_exp_rcv_grp_free(struct hfi1_ctxtdata *uctxt);
 int hfi1_user_exp_rcv_init(struct file *);
 int hfi1_user_exp_rcv_free(struct hfi1_filedata *);
 int hfi1_user_exp_rcv_setup(struct file *, struct hfi1_tid_info *);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/verbs.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/verbs.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/verbs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/verbs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2017 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -1697,7 +1697,7 @@ int hfi1_register_ib_device(struct hfi1_
 	dd->verbs_dev.rdi.driver_f.qp_priv_free = qp_priv_free;
 	dd->verbs_dev.rdi.driver_f.free_all_qps = free_all_qps;
 	dd->verbs_dev.rdi.driver_f.notify_qp_reset = notify_qp_reset;
-	dd->verbs_dev.rdi.driver_f.do_send = hfi1_do_send;
+	dd->verbs_dev.rdi.driver_f.do_send = hfi1_do_send_from_rvt;
 	dd->verbs_dev.rdi.driver_f.schedule_send = hfi1_schedule_send;
 	dd->verbs_dev.rdi.driver_f.schedule_send_no_lock = _hfi1_schedule_send;
 	dd->verbs_dev.rdi.driver_f.get_pmtu_from_attr = get_pmtu_from_attr;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/verbs.h linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/verbs.h
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hfi1/verbs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hfi1/verbs.h	2017-09-27 08:40:05.000000000 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2015, 2016 Intel Corporation.
+ * Copyright(c) 2015 - 2017 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -372,7 +372,9 @@ void hfi1_make_ruc_header(struct rvt_qp
 
 void _hfi1_do_send(struct work_struct *work);
 
-void hfi1_do_send(struct rvt_qp *qp);
+void hfi1_do_send_from_rvt(struct rvt_qp *qp);
+
+void hfi1_do_send(struct rvt_qp *qp, bool in_thread);
 
 void hfi1_send_complete(struct rvt_qp *qp, struct rvt_swqe *wqe,
 			enum ib_wc_status status);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/hns/hns_roce_hw_v1.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/hns/hns_roce_hw_v1.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/hns/hns_roce_hw_v1.c	2017-09-27 08:40:05.000000000 -0400
@@ -1267,6 +1267,7 @@ void hns_roce_v1_cq_set_ci(struct hns_ro
 	u32 doorbell[2];
 
 	doorbell[0] = cons_index & ((hr_cq->cq_depth << 1) - 1);
+	doorbell[1] = 0;
 	roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1);
 	roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M,
 		       ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/i40iw/i40iw_verbs.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/i40iw/i40iw_verbs.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/i40iw/i40iw_verbs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/i40iw/i40iw_verbs.c	2017-09-27 08:40:05.000000000 -0400
@@ -2501,7 +2501,7 @@ static int i40iw_get_hw_stats(struct ib_
 			return -ENOSYS;
 	}
 
-	memcpy(&stats->value[0], &hw_stats, sizeof(*hw_stats));
+	memcpy(&stats->value[0], hw_stats, sizeof(*hw_stats));
 
 	return stats->num_counters;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/ah.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/ah.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/ah.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/ah.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,7 +114,9 @@ static struct ib_ah *create_iboe_ah(stru
 		       !(1 << ah->av.eth.stat_rate & dev->caps.stat_rate_support))
 			--ah->av.eth.stat_rate;
 	}
-
+	ah->av.eth.sl_tclass_flowlabel |=
+			cpu_to_be32((ah_attr->grh.traffic_class << 20) |
+				    ah_attr->grh.flow_label);
 	/*
 	 * HW requires multicast LID so we just choose one.
 	 */
@@ -122,7 +124,7 @@ static struct ib_ah *create_iboe_ah(stru
 		ah->av.ib.dlid = cpu_to_be16(0xc000);
 
 	memcpy(ah->av.eth.dgid, ah_attr->grh.dgid.raw, 16);
-	ah->av.eth.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 29);
+	ah->av.eth.sl_tclass_flowlabel |= cpu_to_be32(ah_attr->sl << 29);
 
 	return &ah->ibah;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/mad.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/mad.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/mad.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/mad.c	2017-09-27 08:40:05.000000000 -0400
@@ -702,10 +702,18 @@ static int mlx4_ib_demux_mad(struct ib_d
 
 	/* If a grh is present, we demux according to it */
 	if (wc->wc_flags & IB_WC_GRH) {
-		slave = mlx4_ib_find_real_gid(ibdev, port, grh->dgid.global.interface_id);
-		if (slave < 0) {
-			mlx4_ib_warn(ibdev, "failed matching grh\n");
-			return -ENOENT;
+		if (grh->dgid.global.interface_id ==
+			cpu_to_be64(IB_SA_WELL_KNOWN_GUID) &&
+		    grh->dgid.global.subnet_prefix == cpu_to_be64(
+			atomic64_read(&dev->sriov.demux[port - 1].subnet_prefix))) {
+			slave = 0;
+		} else {
+			slave = mlx4_ib_find_real_gid(ibdev, port,
+						      grh->dgid.global.interface_id);
+			if (slave < 0) {
+				mlx4_ib_warn(ibdev, "failed matching grh\n");
+				return -ENOENT;
+			}
 		}
 	}
 	/* Class-specific handling */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/main.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/main.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -697,9 +697,11 @@ static int eth_link_query_port(struct ib
 	if (err)
 		goto out;
 
-	props->active_width	=  (((u8 *)mailbox->buf)[5] == 0x40) ?
-						IB_WIDTH_4X : IB_WIDTH_1X;
-	props->active_speed	= IB_SPEED_QDR;
+	props->active_width	=  (((u8 *)mailbox->buf)[5] == 0x40) ||
+				   (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
+					   IB_WIDTH_4X : IB_WIDTH_1X;
+	props->active_speed	=  (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
+					   IB_SPEED_FDR : IB_SPEED_QDR;
 	props->port_cap_flags	= IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS;
 	props->gid_tbl_len	= mdev->dev->caps.gid_table_len[port];
 	props->max_msg_sz	= mdev->dev->caps.max_msg_sz;
@@ -1678,9 +1680,19 @@ static int __mlx4_ib_create_flow(struct
 		size += ret;
 	}
 
+	if (mlx4_is_master(mdev->dev) && flow_type == MLX4_FS_REGULAR &&
+	    flow_attr->num_of_specs == 1) {
+		struct _rule_hw *rule_header = (struct _rule_hw *)(ctrl + 1);
+		enum ib_flow_spec_type header_spec =
+			((union ib_flow_spec *)(flow_attr + 1))->type;
+
+		if (header_spec == IB_FLOW_SPEC_ETH)
+			mlx4_handle_eth_header_mcast_prio(ctrl, rule_header);
+	}
+
 	ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
 			   MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
-			   MLX4_CMD_WRAPPED);
+			   MLX4_CMD_NATIVE);
 	if (ret == -ENOMEM)
 		pr_err("mcg table is full. Fail to register network rule.\n");
 	else if (ret == -ENXIO)
@@ -1697,7 +1709,7 @@ static int __mlx4_ib_destroy_flow(struct
 	int err;
 	err = mlx4_cmd(dev, reg_id, 0, 0,
 		       MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
-		       MLX4_CMD_WRAPPED);
+		       MLX4_CMD_NATIVE);
 	if (err)
 		pr_err("Fail to detach network rule. registration id = 0x%llx\n",
 		       reg_id);
@@ -2820,14 +2832,19 @@ static void *mlx4_ib_add(struct mlx4_dev
 			goto err_steer_qp_release;
 		}
 
-		bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count);
-
-		err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
-				dev, ibdev->steer_qpn_base,
-				ibdev->steer_qpn_base +
-				ibdev->steer_qpn_count - 1);
-		if (err)
-			goto err_steer_free_bitmap;
+		if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB) {
+			bitmap_zero(ibdev->ib_uc_qpns_bitmap,
+				    ibdev->steer_qpn_count);
+			err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
+					dev, ibdev->steer_qpn_base,
+					ibdev->steer_qpn_base +
+					ibdev->steer_qpn_count - 1);
+			if (err)
+				goto err_steer_free_bitmap;
+		} else {
+			bitmap_fill(ibdev->ib_uc_qpns_bitmap,
+				    ibdev->steer_qpn_count);
+		}
 	}
 
 	for (j = 1; j <= ibdev->dev->caps.num_ports; j++)
@@ -2919,6 +2936,7 @@ err_counter:
 		mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
 
 err_map:
+	mlx4_ib_free_eqs(dev, ibdev);
 	iounmap(ibdev->uar_map);
 
 err_uar:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/mcg.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/mcg.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/mcg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/mcg.c	2017-09-27 08:40:05.000000000 -0400
@@ -1102,7 +1102,8 @@ static void _mlx4_ib_mcg_port_cleanup(st
 	while ((p = rb_first(&ctx->mcg_table)) != NULL) {
 		group = rb_entry(p, struct mcast_group, node);
 		if (atomic_read(&group->refcount))
-			mcg_warn_group(group, "group refcount %d!!! (pointer %p)\n", atomic_read(&group->refcount), group);
+			mcg_debug_group(group, "group refcount %d!!! (pointer %p)\n",
+					atomic_read(&group->refcount), group);
 
 		force_clean_group(group);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/qp.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/qp.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx4/qp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx4/qp.c	2017-09-27 08:40:05.000000000 -0400
@@ -1280,7 +1280,8 @@ static int _mlx4_ib_destroy_qp(struct ib
 	if (is_qp0(dev, mqp))
 		mlx4_CLOSE_PORT(dev->dev, mqp->port);
 
-	if (dev->qp1_proxy[mqp->port - 1] == mqp) {
+	if (mqp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_GSI &&
+	    dev->qp1_proxy[mqp->port - 1] == mqp) {
 		mutex_lock(&dev->qp1_proxy_lock[mqp->port - 1]);
 		dev->qp1_proxy[mqp->port - 1] = NULL;
 		mutex_unlock(&dev->qp1_proxy_lock[mqp->port - 1]);
@@ -1764,14 +1765,14 @@ static int __mlx4_ib_modify_qp(struct ib
 		u8 port_num = mlx4_is_bonded(to_mdev(ibqp->device)->dev) ? 1 :
 			attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
 		union ib_gid gid;
-		struct ib_gid_attr gid_attr;
+		struct ib_gid_attr gid_attr = {.gid_type = IB_GID_TYPE_IB};
 		u16 vlan = 0xffff;
 		u8 smac[ETH_ALEN];
 		int status = 0;
 		int is_eth = rdma_cap_eth_ah(&dev->ib_dev, port_num) &&
 			attr->ah_attr.ah_flags & IB_AH_GRH;
 
-		if (is_eth) {
+		if (is_eth && attr->ah_attr.ah_flags & IB_AH_GRH) {
 			int index = attr->ah_attr.grh.sgid_index;
 
 			status = ib_get_cached_gid(ibqp->device, port_num,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/main.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/main.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -496,6 +496,7 @@ static int mlx5_ib_query_device(struct i
 	struct mlx5_ib_dev *dev = to_mdev(ibdev);
 	struct mlx5_core_dev *mdev = dev->mdev;
 	int err = -ENOMEM;
+	int max_sq_desc;
 	int max_rq_sg;
 	int max_sq_sg;
 	u64 min_page_size = 1ull << MLX5_CAP_GEN(mdev, log_pg_sz);
@@ -618,9 +619,10 @@ static int mlx5_ib_query_device(struct i
 	props->max_qp_wr	   = 1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
 	max_rq_sg =  MLX5_CAP_GEN(mdev, max_wqe_sz_rq) /
 		     sizeof(struct mlx5_wqe_data_seg);
-	max_sq_sg = (MLX5_CAP_GEN(mdev, max_wqe_sz_sq) -
-		     sizeof(struct mlx5_wqe_ctrl_seg)) /
-		     sizeof(struct mlx5_wqe_data_seg);
+	max_sq_desc = min_t(int, MLX5_CAP_GEN(mdev, max_wqe_sz_sq), 512);
+	max_sq_sg = (max_sq_desc - sizeof(struct mlx5_wqe_ctrl_seg) -
+		     sizeof(struct mlx5_wqe_raddr_seg)) /
+		sizeof(struct mlx5_wqe_data_seg);
 	props->max_sge = min(max_rq_sg, max_sq_sg);
 	props->max_sge_rd	   = MLX5_MAX_SGE_RD;
 	props->max_cq		   = 1 << MLX5_CAP_GEN(mdev, log_max_cq);
@@ -1103,13 +1105,13 @@ static struct ib_ucontext *mlx5_ib_alloc
 	 * pretend we don't support reading the HCA's core clock. This is also
 	 * forced by mmap function.
 	 */
-	if (PAGE_SIZE <= 4096 &&
-	    field_avail(typeof(resp), hca_core_clock_offset, udata->outlen)) {
-		resp.comp_mask |=
-			MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET;
-		resp.hca_core_clock_offset =
-			offsetof(struct mlx5_init_seg, internal_timer_h) %
-			PAGE_SIZE;
+	if (field_avail(typeof(resp), hca_core_clock_offset, udata->outlen)) {
+		if (PAGE_SIZE <= 4096) {
+			resp.comp_mask |=
+				MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET;
+			resp.hca_core_clock_offset =
+				offsetof(struct mlx5_init_seg, internal_timer_h) % PAGE_SIZE;
+		}
 		resp.response_length += sizeof(resp.hca_core_clock_offset) +
 					sizeof(resp.reserved2);
 	}
@@ -3139,9 +3141,11 @@ static void *mlx5_ib_add(struct mlx5_cor
 	if (err)
 		goto err_rsrc;
 
-	err = mlx5_ib_alloc_q_counters(dev);
-	if (err)
-		goto err_odp;
+	if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) {
+		err = mlx5_ib_alloc_q_counters(dev);
+		if (err)
+			goto err_odp;
+	}
 
 	err = ib_register_device(&dev->ib_dev, NULL);
 	if (err)
@@ -3169,7 +3173,8 @@ err_dev:
 	ib_unregister_device(&dev->ib_dev);
 
 err_q_cnt:
-	mlx5_ib_dealloc_q_counters(dev);
+	if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt))
+		mlx5_ib_dealloc_q_counters(dev);
 
 err_odp:
 	mlx5_ib_odp_remove_one(dev);
@@ -3199,7 +3204,8 @@ static void mlx5_ib_remove(struct mlx5_c
 
 	mlx5_remove_roce_notifier(dev);
 	ib_unregister_device(&dev->ib_dev);
-	mlx5_ib_dealloc_q_counters(dev);
+	if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt))
+		mlx5_ib_dealloc_q_counters(dev);
 	destroy_umrc_res(dev);
 	mlx5_ib_odp_remove_one(dev);
 	destroy_dev_resources(&dev->devr);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/mr.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/mr.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/mr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/mr.c	2017-09-27 08:40:05.000000000 -0400
@@ -628,7 +628,8 @@ int mlx5_mr_cache_init(struct mlx5_ib_de
 		ent->order = i + 2;
 		ent->dev = dev;
 
-		if (dev->mdev->profile->mask & MLX5_PROF_MASK_MR_CACHE)
+		if ((dev->mdev->profile->mask & MLX5_PROF_MASK_MR_CACHE) &&
+		    (mlx5_core_is_pf(dev->mdev)))
 			limit = dev->mdev->profile->mr_cache[i].limit;
 		else
 			limit = 0;
@@ -646,6 +647,33 @@ int mlx5_mr_cache_init(struct mlx5_ib_de
 	return 0;
 }
 
+static void wait_for_async_commands(struct mlx5_ib_dev *dev)
+{
+	struct mlx5_mr_cache *cache = &dev->cache;
+	struct mlx5_cache_ent *ent;
+	int total = 0;
+	int i;
+	int j;
+
+	for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++) {
+		ent = &cache->ent[i];
+		for (j = 0 ; j < 1000; j++) {
+			if (!ent->pending)
+				break;
+			msleep(50);
+		}
+	}
+	for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++) {
+		ent = &cache->ent[i];
+		total += ent->pending;
+	}
+
+	if (total)
+		mlx5_ib_warn(dev, "aborted while there are %d pending mr requests\n", total);
+	else
+		mlx5_ib_warn(dev, "done with all pending requests\n");
+}
+
 int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev)
 {
 	int i;
@@ -659,6 +687,7 @@ int mlx5_mr_cache_cleanup(struct mlx5_ib
 		clean_keys(dev, i);
 
 	destroy_workqueue(dev->cache.wq);
+	wait_for_async_commands(dev);
 	del_timer_sync(&dev->delay_timer);
 
 	return 0;
@@ -1794,12 +1823,12 @@ mlx5_ib_sg_to_klms(struct mlx5_ib_mr *mr
 	mr->ndescs = sg_nents;
 
 	for_each_sg(sgl, sg, sg_nents, i) {
-		if (unlikely(i > mr->max_descs))
+		if (unlikely(i >= mr->max_descs))
 			break;
 		klms[i].va = cpu_to_be64(sg_dma_address(sg) + sg_offset);
 		klms[i].bcount = cpu_to_be32(sg_dma_len(sg) - sg_offset);
 		klms[i].key = cpu_to_be32(lkey);
-		mr->ibmr.length += sg_dma_len(sg);
+		mr->ibmr.length += sg_dma_len(sg) - sg_offset;
 
 		sg_offset = 0;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/qp.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/qp.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/qp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/qp.c	2017-09-27 08:40:05.000000000 -0400
@@ -351,6 +351,29 @@ static int calc_send_wqe(struct ib_qp_in
 		return ALIGN(max_t(int, inl_size, size), MLX5_SEND_WQE_BB);
 }
 
+static int get_send_sge(struct ib_qp_init_attr *attr, int wqe_size)
+{
+	int max_sge;
+
+	if (attr->qp_type == IB_QPT_RC)
+		max_sge = (min_t(int, wqe_size, 512) -
+			   sizeof(struct mlx5_wqe_ctrl_seg) -
+			   sizeof(struct mlx5_wqe_raddr_seg)) /
+			sizeof(struct mlx5_wqe_data_seg);
+	else if (attr->qp_type == IB_QPT_XRC_INI)
+		max_sge = (min_t(int, wqe_size, 512) -
+			   sizeof(struct mlx5_wqe_ctrl_seg) -
+			   sizeof(struct mlx5_wqe_xrc_seg) -
+			   sizeof(struct mlx5_wqe_raddr_seg)) /
+			sizeof(struct mlx5_wqe_data_seg);
+	else
+		max_sge = (wqe_size - sq_overhead(attr)) /
+			sizeof(struct mlx5_wqe_data_seg);
+
+	return min_t(int, max_sge, wqe_size - sq_overhead(attr) /
+		     sizeof(struct mlx5_wqe_data_seg));
+}
+
 static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr,
 			struct mlx5_ib_qp *qp)
 {
@@ -387,7 +410,11 @@ static int calc_sq_size(struct mlx5_ib_d
 		return -ENOMEM;
 	}
 	qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB);
-	qp->sq.max_gs = attr->cap.max_send_sge;
+	qp->sq.max_gs = get_send_sge(attr, wqe_size);
+	if (qp->sq.max_gs < attr->cap.max_send_sge)
+		return -ENOMEM;
+
+	attr->cap.max_send_sge = qp->sq.max_gs;
 	qp->sq.max_post = wq_size / wqe_size;
 	attr->cap.max_send_wr = qp->sq.max_post;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/srq.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/srq.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/mlx5/srq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/mlx5/srq.c	2017-09-27 08:40:05.000000000 -0400
@@ -165,8 +165,6 @@ static int create_srq_kernel(struct mlx5
 	int err;
 	int i;
 	struct mlx5_wqe_srq_next_seg *next;
-	int page_shift;
-	int npages;
 
 	err = mlx5_db_alloc(dev->mdev, &srq->db);
 	if (err) {
@@ -179,7 +177,6 @@ static int create_srq_kernel(struct mlx5
 		err = -ENOMEM;
 		goto err_db;
 	}
-	page_shift = srq->buf.page_shift;
 
 	srq->head    = 0;
 	srq->tail    = srq->msrq.max - 1;
@@ -191,10 +188,8 @@ static int create_srq_kernel(struct mlx5
 			cpu_to_be16((i + 1) & (srq->msrq.max - 1));
 	}
 
-	npages = DIV_ROUND_UP(srq->buf.npages, 1 << (page_shift - PAGE_SHIFT));
-	mlx5_ib_dbg(dev, "buf_size %d, page_shift %d, npages %d, calc npages %d\n",
-		    buf_size, page_shift, srq->buf.npages, npages);
-	in->pas = mlx5_vzalloc(sizeof(*in->pas) * npages);
+	mlx5_ib_dbg(dev, "srq->buf.page_shift = %d\n", srq->buf.page_shift);
+	in->pas = mlx5_vzalloc(sizeof(*in->pas) * srq->buf.npages);
 	if (!in->pas) {
 		err = -ENOMEM;
 		goto err_buf;
@@ -210,7 +205,7 @@ static int create_srq_kernel(struct mlx5
 	}
 	srq->wq_sig = !!srq_signature;
 
-	in->log_page_size = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
+	in->log_page_size = srq->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT;
 	if (MLX5_CAP_GEN(dev->mdev, cqe_version) == MLX5_CQE_VERSION_V1 &&
 	    in->type == IB_SRQT_XRC)
 		in->user_index = MLX5_IB_DEFAULT_UIDX;
@@ -282,6 +277,7 @@ struct ib_srq *mlx5_ib_create_srq(struct
 	mlx5_ib_dbg(dev, "desc_size 0x%x, req wr 0x%x, srq size 0x%x, max_gs 0x%x, max_avail_gather 0x%x\n",
 		    desc_size, init_attr->attr.max_wr, srq->msrq.max, srq->msrq.max_gs,
 		    srq->msrq.max_avail_gather);
+	in.type = init_attr->srq_type;
 
 	if (pd->uobject)
 		err = create_srq_user(pd, srq, &in, udata, buf_size);
@@ -294,7 +290,6 @@ struct ib_srq *mlx5_ib_create_srq(struct
 		goto err_srq;
 	}
 
-	in.type = init_attr->srq_type;
 	in.log_size = ilog2(srq->msrq.max);
 	in.wqe_shift = srq->msrq.wqe_shift - 4;
 	if (srq->wq_sig)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/qedr/main.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/qedr/main.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/qedr/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/qedr/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -792,6 +792,9 @@ static struct qedr_dev *qedr_add(struct
 		if (device_create_file(&dev->ibdev.dev, qedr_attributes[i]))
 			goto sysfs_err;
 
+	if (!test_and_set_bit(QEDR_ENET_STATE_BIT, &dev->enet_state))
+		qedr_ib_dispatch_event(dev, QEDR_PORT, IB_EVENT_PORT_ACTIVE);
+
 	DP_DEBUG(dev, QEDR_MSG_INIT, "qedr driver loaded successfully\n");
 	return dev;
 
@@ -824,11 +827,10 @@ static void qedr_remove(struct qedr_dev
 	ib_dealloc_device(&dev->ibdev);
 }
 
-static int qedr_close(struct qedr_dev *dev)
+static void qedr_close(struct qedr_dev *dev)
 {
-	qedr_ib_dispatch_event(dev, 1, IB_EVENT_PORT_ERR);
-
-	return 0;
+	if (test_and_clear_bit(QEDR_ENET_STATE_BIT, &dev->enet_state))
+		qedr_ib_dispatch_event(dev, QEDR_PORT, IB_EVENT_PORT_ERR);
 }
 
 static void qedr_shutdown(struct qedr_dev *dev)
@@ -837,6 +839,12 @@ static void qedr_shutdown(struct qedr_de
 	qedr_remove(dev);
 }
 
+static void qedr_open(struct qedr_dev *dev)
+{
+	if (!test_and_set_bit(QEDR_ENET_STATE_BIT, &dev->enet_state))
+		qedr_ib_dispatch_event(dev, QEDR_PORT, IB_EVENT_PORT_ACTIVE);
+}
+
 static void qedr_mac_address_change(struct qedr_dev *dev)
 {
 	union ib_gid *sgid = &dev->sgid_tbl[0];
@@ -863,7 +871,7 @@ static void qedr_mac_address_change(stru
 
 	ether_addr_copy(dev->gsi_ll2_mac_address, dev->ndev->dev_addr);
 
-	qedr_ib_dispatch_event(dev, 1, IB_EVENT_GID_CHANGE);
+	qedr_ib_dispatch_event(dev, QEDR_PORT, IB_EVENT_GID_CHANGE);
 
 	if (rc)
 		DP_ERR(dev, "Error updating mac filter\n");
@@ -877,7 +885,7 @@ static void qedr_notify(struct qedr_dev
 {
 	switch (event) {
 	case QEDE_UP:
-		qedr_ib_dispatch_event(dev, 1, IB_EVENT_PORT_ACTIVE);
+		qedr_open(dev);
 		break;
 	case QEDE_DOWN:
 		qedr_close(dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/qedr/qedr.h linux-libre-4.9.52-gnu/drivers/infiniband/hw/qedr/qedr.h
--- linux-libre-4.9-gnu/drivers/infiniband/hw/qedr/qedr.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/qedr/qedr.h	2017-09-27 08:40:05.000000000 -0400
@@ -113,6 +113,8 @@ struct qedr_device_attr {
 	struct qed_rdma_events events;
 };
 
+#define QEDR_ENET_STATE_BIT	(0)
+
 struct qedr_dev {
 	struct ib_device	ibdev;
 	struct qed_dev		*cdev;
@@ -153,6 +155,8 @@ struct qedr_dev {
 	struct qedr_cq		*gsi_sqcq;
 	struct qedr_cq		*gsi_rqcq;
 	struct qedr_qp		*gsi_qp;
+
+	unsigned long enet_state;
 };
 
 #define QEDR_MAX_SQ_PBL			(0x8000)
@@ -188,6 +192,7 @@ struct qedr_dev {
 #define QEDR_ROCE_MAX_CNQ_SIZE		(0x4000)
 
 #define QEDR_MAX_PORT			(1)
+#define QEDR_PORT			(1)
 
 #define QEDR_UVERBS(CMD_NAME) (1ull << IB_USER_VERBS_CMD_##CMD_NAME)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/qedr/verbs.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/qedr/verbs.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/qedr/verbs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/qedr/verbs.c	2017-09-27 08:40:05.000000000 -0400
@@ -471,8 +471,6 @@ struct ib_pd *qedr_alloc_pd(struct ib_de
 			    struct ib_ucontext *context, struct ib_udata *udata)
 {
 	struct qedr_dev *dev = get_qedr_dev(ibdev);
-	struct qedr_ucontext *uctx = NULL;
-	struct qedr_alloc_pd_uresp uresp;
 	struct qedr_pd *pd;
 	u16 pd_id;
 	int rc;
@@ -489,21 +487,33 @@ struct ib_pd *qedr_alloc_pd(struct ib_de
 	if (!pd)
 		return ERR_PTR(-ENOMEM);
 
-	dev->ops->rdma_alloc_pd(dev->rdma_ctx, &pd_id);
+	rc = dev->ops->rdma_alloc_pd(dev->rdma_ctx, &pd_id);
+	if (rc)
+		goto err;
 
-	uresp.pd_id = pd_id;
 	pd->pd_id = pd_id;
 
 	if (udata && context) {
+		struct qedr_alloc_pd_uresp uresp;
+
+		uresp.pd_id = pd_id;
+
 		rc = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
-		if (rc)
+		if (rc) {
 			DP_ERR(dev, "copy error pd_id=0x%x.\n", pd_id);
-		uctx = get_qedr_ucontext(context);
-		uctx->pd = pd;
-		pd->uctx = uctx;
+			dev->ops->rdma_dealloc_pd(dev->rdma_ctx, pd_id);
+			goto err;
+		}
+
+		pd->uctx = get_qedr_ucontext(context);
+		pd->uctx->pd = pd;
 	}
 
 	return &pd->ibpd;
+
+err:
+	kfree(pd);
+	return ERR_PTR(rc);
 }
 
 int qedr_dealloc_pd(struct ib_pd *ibpd)
@@ -1719,6 +1729,14 @@ static int qedr_update_qp_state(struct q
 		/* ERR->XXX */
 		switch (new_state) {
 		case QED_ROCE_QP_STATE_RESET:
+			if ((qp->rq.prod != qp->rq.cons) ||
+			    (qp->sq.prod != qp->sq.cons)) {
+				DP_NOTICE(dev,
+					  "Error->Reset with rq/sq not empty rq.prod=%x rq.cons=%x sq.prod=%x sq.cons=%x\n",
+					  qp->rq.prod, qp->rq.cons, qp->sq.prod,
+					  qp->sq.cons);
+				status = -EINVAL;
+			}
 			break;
 		default:
 			status = -EINVAL;
@@ -2014,7 +2032,7 @@ int qedr_query_qp(struct ib_qp *ibqp,
 	qp_attr->cap.max_recv_wr = qp->rq.max_wr;
 	qp_attr->cap.max_send_sge = qp->sq.max_sges;
 	qp_attr->cap.max_recv_sge = qp->rq.max_sges;
-	qp_attr->cap.max_inline_data = qp->max_inline_data;
+	qp_attr->cap.max_inline_data = ROCE_REQ_MAX_INLINE_DATA_SIZE;
 	qp_init_attr->cap = qp_attr->cap;
 
 	memcpy(&qp_attr->ah_attr.grh.dgid.raw[0], &params.dgid.bytes[0],
@@ -3220,9 +3238,10 @@ static int qedr_poll_cq_req(struct qedr_
 				  IB_WC_SUCCESS, 0);
 		break;
 	case RDMA_CQE_REQ_STS_WORK_REQUEST_FLUSHED_ERR:
-		DP_ERR(dev,
-		       "Error: POLL CQ with RDMA_CQE_REQ_STS_WORK_REQUEST_FLUSHED_ERR. CQ icid=0x%x, QP icid=0x%x\n",
-		       cq->icid, qp->icid);
+		if (qp->state != QED_ROCE_QP_STATE_ERR)
+			DP_ERR(dev,
+			       "Error: POLL CQ with RDMA_CQE_REQ_STS_WORK_REQUEST_FLUSHED_ERR. CQ icid=0x%x, QP icid=0x%x\n",
+			       cq->icid, qp->icid);
 		cnt = process_req(dev, qp, cq, num_entries, wc, req->sq_cons,
 				  IB_WC_WR_FLUSH_ERR, 0);
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/hw/qib/qib_rc.c linux-libre-4.9.52-gnu/drivers/infiniband/hw/qib/qib_rc.c
--- linux-libre-4.9-gnu/drivers/infiniband/hw/qib/qib_rc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/hw/qib/qib_rc.c	2017-09-27 08:40:05.000000000 -0400
@@ -357,7 +357,7 @@ int qib_make_rc_req(struct rvt_qp *qp, u
 		case IB_WR_RDMA_WRITE:
 			if (newreq && !(qp->s_flags & RVT_S_UNLIMITED_CREDIT))
 				qp->s_lsn++;
-			/* FALLTHROUGH */
+			goto no_flow_control;
 		case IB_WR_RDMA_WRITE_WITH_IMM:
 			/* If no credit, return. */
 			if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT) &&
@@ -365,7 +365,7 @@ int qib_make_rc_req(struct rvt_qp *qp, u
 				qp->s_flags |= RVT_S_WAIT_SSN_CREDIT;
 				goto bail;
 			}
-
+no_flow_control:
 			ohdr->u.rc.reth.vaddr =
 				cpu_to_be64(wqe->rdma_wr.remote_addr);
 			ohdr->u.rc.reth.rkey =
@@ -2067,8 +2067,10 @@ send_last:
 		ret = qib_get_rwqe(qp, 1);
 		if (ret < 0)
 			goto nack_op_err;
-		if (!ret)
+		if (!ret) {
+			rvt_put_ss(&qp->r_sge);
 			goto rnr_nak;
+		}
 		wc.ex.imm_data = ohdr->u.rc.imm_data;
 		hdrsize += 4;
 		wc.wc_flags = IB_WC_WITH_IMM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_mr.c linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_mr.c
--- linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_mr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_mr.c	2017-09-27 08:40:05.000000000 -0400
@@ -59,9 +59,11 @@ int mem_check_range(struct rxe_mem *mem,
 
 	case RXE_MEM_TYPE_MR:
 	case RXE_MEM_TYPE_FMR:
-		return ((iova < mem->iova) ||
-			((iova + length) > (mem->iova + mem->length))) ?
-			-EFAULT : 0;
+		if (iova < mem->iova ||
+		    length > mem->length ||
+		    iova > mem->iova + mem->length - length)
+			return -EFAULT;
+		return 0;
 
 	default:
 		return -EFAULT;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_net.c linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_net.c
--- linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_net.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_net.c	2017-09-27 08:40:05.000000000 -0400
@@ -554,7 +554,7 @@ struct rxe_dev *rxe_net_add(struct net_d
 	}
 
 	spin_lock_bh(&dev_list_lock);
-	list_add_tail(&rxe_dev_list, &rxe->list);
+	list_add_tail(&rxe->list, &rxe_dev_list);
 	spin_unlock_bh(&dev_list_lock);
 	return rxe;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_param.h linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_param.h
--- linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_param.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_param.h	2017-09-27 08:40:05.000000000 -0400
@@ -82,7 +82,7 @@ enum rxe_device_param {
 	RXE_MAX_SGE			= 32,
 	RXE_MAX_SGE_RD			= 32,
 	RXE_MAX_CQ			= 16384,
-	RXE_MAX_LOG_CQE			= 13,
+	RXE_MAX_LOG_CQE			= 15,
 	RXE_MAX_MR			= 2 * 1024,
 	RXE_MAX_PD			= 0x7ffc,
 	RXE_MAX_QP_RD_ATOM		= 128,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_qp.c linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_qp.c
--- linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_qp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_qp.c	2017-09-27 08:40:05.000000000 -0400
@@ -813,8 +813,7 @@ void rxe_qp_destroy(struct rxe_qp *qp)
 	del_timer_sync(&qp->rnr_nak_timer);
 
 	rxe_cleanup_task(&qp->req.task);
-	if (qp_type(qp) == IB_QPT_RC)
-		rxe_cleanup_task(&qp->comp.task);
+	rxe_cleanup_task(&qp->comp.task);
 
 	/* flush out any receive wr's or pending requests */
 	__rxe_do_task(&qp->req.task);
@@ -855,4 +854,5 @@ void rxe_qp_cleanup(void *arg)
 	free_rd_atomic_resources(qp);
 
 	kernel_sock_shutdown(qp->sk, SHUT_RDWR);
+	sock_release(qp->sk);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_req.c linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_req.c
--- linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_req.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_req.c	2017-09-27 08:40:05.000000000 -0400
@@ -548,23 +548,23 @@ static void update_wqe_psn(struct rxe_qp
 static void save_state(struct rxe_send_wqe *wqe,
 		       struct rxe_qp *qp,
 		       struct rxe_send_wqe *rollback_wqe,
-		       struct rxe_qp *rollback_qp)
+		       u32 *rollback_psn)
 {
 	rollback_wqe->state     = wqe->state;
 	rollback_wqe->first_psn = wqe->first_psn;
 	rollback_wqe->last_psn  = wqe->last_psn;
-	rollback_qp->req.psn    = qp->req.psn;
+	*rollback_psn		= qp->req.psn;
 }
 
 static void rollback_state(struct rxe_send_wqe *wqe,
 			   struct rxe_qp *qp,
 			   struct rxe_send_wqe *rollback_wqe,
-			   struct rxe_qp *rollback_qp)
+			   u32 rollback_psn)
 {
 	wqe->state     = rollback_wqe->state;
 	wqe->first_psn = rollback_wqe->first_psn;
 	wqe->last_psn  = rollback_wqe->last_psn;
-	qp->req.psn    = rollback_qp->req.psn;
+	qp->req.psn    = rollback_psn;
 }
 
 static void update_state(struct rxe_qp *qp, struct rxe_send_wqe *wqe,
@@ -593,8 +593,8 @@ int rxe_requester(void *arg)
 	int mtu;
 	int opcode;
 	int ret;
-	struct rxe_qp rollback_qp;
 	struct rxe_send_wqe rollback_wqe;
+	u32 rollback_psn;
 
 next_wqe:
 	if (unlikely(!qp->valid || qp->req.state == QP_STATE_ERROR))
@@ -719,7 +719,7 @@ next_wqe:
 	 * rxe_xmit_packet().
 	 * Otherwise, completer might initiate an unjustified retry flow.
 	 */
-	save_state(wqe, qp, &rollback_wqe, &rollback_qp);
+	save_state(wqe, qp, &rollback_wqe, &rollback_psn);
 	update_wqe_state(qp, wqe, &pkt);
 	update_wqe_psn(qp, wqe, &pkt, payload);
 	ret = rxe_xmit_packet(to_rdev(qp->ibqp.device), qp, &pkt, skb);
@@ -727,7 +727,7 @@ next_wqe:
 		qp->need_req_skb = 1;
 		kfree_skb(skb);
 
-		rollback_state(wqe, qp, &rollback_wqe, &rollback_qp);
+		rollback_state(wqe, qp, &rollback_wqe, rollback_psn);
 
 		if (ret == -EAGAIN) {
 			rxe_run_task(&qp->req.task, 1);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_resp.c linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_resp.c
--- linux-libre-4.9-gnu/drivers/infiniband/sw/rxe/rxe_resp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/sw/rxe/rxe_resp.c	2017-09-27 08:40:05.000000000 -0400
@@ -472,7 +472,7 @@ static enum resp_states check_rkey(struc
 				goto err2;
 			}
 
-			resid = mtu;
+			qp->resp.resid = mtu;
 		} else {
 			if (pktlen != resid) {
 				state = RESPST_ERR_LENGTH;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_cm.c	2017-09-27 08:40:05.000000000 -0400
@@ -1054,8 +1054,6 @@ static struct ib_qp *ipoib_cm_create_tx_
 
 	tx_qp = ib_create_qp(priv->pd, &attr);
 	if (PTR_ERR(tx_qp) == -EINVAL) {
-		ipoib_warn(priv, "can't use GFP_NOIO for QPs on device %s, using GFP_KERNEL\n",
-			   priv->ca->name);
 		attr.create_flags &= ~IB_QP_CREATE_USE_GFP_NOIO;
 		tx_qp = ib_create_qp(priv->pd, &attr);
 	}
@@ -1513,12 +1511,14 @@ static ssize_t set_mode(struct device *d
 
 	ret = ipoib_set_mode(dev, buf);
 
-	rtnl_unlock();
-
-	if (!ret)
-		return count;
+	/* The assumption is that the function ipoib_set_mode returned
+	 * with the rtnl held by it, if not the value -EBUSY returned,
+	 * then no need to rtnl_unlock
+	 */
+	if (ret != -EBUSY)
+		rtnl_unlock();
 
-	return ret;
+	return (!ret || ret == -EBUSY) ? count : ret;
 }
 
 static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO, show_mode, set_mode);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_fs.c	2017-09-27 08:40:05.000000000 -0400
@@ -281,8 +281,11 @@ void ipoib_delete_debug_files(struct net
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 
+	WARN_ONCE(!priv->mcg_dentry, "null mcg debug file\n");
+	WARN_ONCE(!priv->path_dentry, "null path debug file\n");
 	debugfs_remove(priv->mcg_dentry);
 	debugfs_remove(priv->path_dentry);
+	priv->mcg_dentry = priv->path_dentry = NULL;
 }
 
 int ipoib_register_debugfs(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -108,6 +108,33 @@ static struct ib_client ipoib_client = {
 	.get_net_dev_by_params = ipoib_get_net_dev_by_params,
 };
 
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+static int ipoib_netdev_event(struct notifier_block *this,
+			      unsigned long event, void *ptr)
+{
+	struct netdev_notifier_info *ni = ptr;
+	struct net_device *dev = ni->dev;
+
+	if (dev->netdev_ops->ndo_open != ipoib_open)
+		return NOTIFY_DONE;
+
+	switch (event) {
+	case NETDEV_REGISTER:
+		ipoib_create_debug_files(dev);
+		break;
+	case NETDEV_CHANGENAME:
+		ipoib_delete_debug_files(dev);
+		ipoib_create_debug_files(dev);
+		break;
+	case NETDEV_UNREGISTER:
+		ipoib_delete_debug_files(dev);
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+#endif
+
 int ipoib_open(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -468,8 +495,7 @@ int ipoib_set_mode(struct net_device *de
 		priv->tx_wr.wr.send_flags &= ~IB_SEND_IP_CSUM;
 
 		ipoib_flush_paths(dev);
-		rtnl_lock();
-		return 0;
+		return (!rtnl_trylock()) ? -EBUSY : 0;
 	}
 
 	if (!strcmp(buf, "datagram\n")) {
@@ -478,8 +504,7 @@ int ipoib_set_mode(struct net_device *de
 		dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
 		rtnl_unlock();
 		ipoib_flush_paths(dev);
-		rtnl_lock();
-		return 0;
+		return (!rtnl_trylock()) ? -EBUSY : 0;
 	}
 
 	return -EINVAL;
@@ -703,6 +728,14 @@ int ipoib_check_sm_sendonly_fullmember_s
 	return ret;
 }
 
+static void push_pseudo_header(struct sk_buff *skb, const char *daddr)
+{
+	struct ipoib_pseudo_header *phdr;
+
+	phdr = (struct ipoib_pseudo_header *)skb_push(skb, sizeof(*phdr));
+	memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);
+}
+
 void ipoib_flush_paths(struct net_device *dev)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -927,8 +960,7 @@ static void neigh_add_path(struct sk_buf
 			}
 			if (skb_queue_len(&neigh->queue) <
 			    IPOIB_MAX_PATH_REC_QUEUE) {
-				/* put pseudoheader back on for next time */
-				skb_push(skb, IPOIB_PSEUDO_LEN);
+				push_pseudo_header(skb, neigh->daddr);
 				__skb_queue_tail(&neigh->queue, skb);
 			} else {
 				ipoib_warn(priv, "queue length limit %d. Packet drop.\n",
@@ -946,10 +978,12 @@ static void neigh_add_path(struct sk_buf
 
 		if (!path->query && path_rec_start(dev, path))
 			goto err_path;
-		if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)
+		if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
+			push_pseudo_header(skb, neigh->daddr);
 			__skb_queue_tail(&neigh->queue, skb);
-		else
+		} else {
 			goto err_drop;
+		}
 	}
 
 	spin_unlock_irqrestore(&priv->lock, flags);
@@ -985,8 +1019,7 @@ static void unicast_arp_send(struct sk_b
 		}
 		if (path) {
 			if (skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
-				/* put pseudoheader back on for next time */
-				skb_push(skb, IPOIB_PSEUDO_LEN);
+				push_pseudo_header(skb, phdr->hwaddr);
 				__skb_queue_tail(&path->queue, skb);
 			} else {
 				++dev->stats.tx_dropped;
@@ -1018,8 +1051,7 @@ static void unicast_arp_send(struct sk_b
 		return;
 	} else if ((path->query || !path_rec_start(dev, path)) &&
 		   skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
-		/* put pseudoheader back on for next time */
-		skb_push(skb, IPOIB_PSEUDO_LEN);
+		push_pseudo_header(skb, phdr->hwaddr);
 		__skb_queue_tail(&path->queue, skb);
 	} else {
 		++dev->stats.tx_dropped;
@@ -1100,8 +1132,7 @@ send_using_neigh:
 	}
 
 	if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
-		/* put pseudoheader back on for next time */
-		skb_push(skb, sizeof(*phdr));
+		push_pseudo_header(skb, phdr->hwaddr);
 		spin_lock_irqsave(&priv->lock, flags);
 		__skb_queue_tail(&neigh->queue, skb);
 		spin_unlock_irqrestore(&priv->lock, flags);
@@ -1133,7 +1164,6 @@ static int ipoib_hard_header(struct sk_b
 			     unsigned short type,
 			     const void *daddr, const void *saddr, unsigned len)
 {
-	struct ipoib_pseudo_header *phdr;
 	struct ipoib_header *header;
 
 	header = (struct ipoib_header *) skb_push(skb, sizeof *header);
@@ -1146,8 +1176,7 @@ static int ipoib_hard_header(struct sk_b
 	 * destination address into skb hard header so we can figure out where
 	 * to send the packet later.
 	 */
-	phdr = (struct ipoib_pseudo_header *) skb_push(skb, sizeof(*phdr));
-	memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);
+	push_pseudo_header(skb, daddr);
 
 	return IPOIB_HARD_LEN;
 }
@@ -1653,8 +1682,6 @@ void ipoib_dev_cleanup(struct net_device
 
 	ASSERT_RTNL();
 
-	ipoib_delete_debug_files(dev);
-
 	/* Delete any child interfaces first */
 	list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
 		/* Stop GC on child */
@@ -2072,8 +2099,6 @@ static struct net_device *ipoib_add_port
 		goto register_failed;
 	}
 
-	ipoib_create_debug_files(priv->dev);
-
 	if (ipoib_cm_add_mode_attr(priv->dev))
 		goto sysfs_failed;
 	if (ipoib_add_pkey_attr(priv->dev))
@@ -2088,7 +2113,6 @@ static struct net_device *ipoib_add_port
 	return priv->dev;
 
 sysfs_failed:
-	ipoib_delete_debug_files(priv->dev);
 	unregister_netdev(priv->dev);
 
 register_failed:
@@ -2173,6 +2197,12 @@ static void ipoib_remove_one(struct ib_d
 	kfree(dev_list);
 }
 
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+static struct notifier_block ipoib_netdev_notifier = {
+	.notifier_call = ipoib_netdev_event,
+};
+#endif
+
 static int __init ipoib_init_module(void)
 {
 	int ret;
@@ -2225,6 +2255,9 @@ static int __init ipoib_init_module(void
 	if (ret)
 		goto err_client;
 
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+	register_netdevice_notifier(&ipoib_netdev_notifier);
+#endif
 	return 0;
 
 err_client:
@@ -2242,6 +2275,9 @@ err_fs:
 
 static void __exit ipoib_cleanup_module(void)
 {
+#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
+	unregister_netdevice_notifier(&ipoib_netdev_notifier);
+#endif
 	ipoib_netlink_fini();
 	ib_unregister_client(&ipoib_client);
 	ib_sa_unregister_client(&ipoib_sa_client);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_multicast.c	2017-09-27 08:40:05.000000000 -0400
@@ -575,8 +575,11 @@ void ipoib_mcast_join_task(struct work_s
 	if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
 		return;
 
-	if (ib_query_port(priv->ca, priv->port, &port_attr) ||
-	    port_attr.state != IB_PORT_ACTIVE) {
+	if (ib_query_port(priv->ca, priv->port, &port_attr)) {
+		ipoib_dbg(priv, "ib_query_port() failed\n");
+		return;
+	}
+	if (port_attr.state != IB_PORT_ACTIVE) {
 		ipoib_dbg(priv, "port state is not ACTIVE (state = %d) suspending join task\n",
 			  port_attr.state);
 		return;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/ipoib/ipoib_vlan.c	2017-09-27 08:40:05.000000000 -0400
@@ -87,8 +87,6 @@ int __ipoib_vlan_add(struct ipoib_dev_pr
 		goto register_failed;
 	}
 
-	ipoib_create_debug_files(priv->dev);
-
 	/* RTNL childs don't need proprietary sysfs entries */
 	if (type == IPOIB_LEGACY_CHILD) {
 		if (ipoib_cm_add_mode_attr(priv->dev))
@@ -109,7 +107,6 @@ int __ipoib_vlan_add(struct ipoib_dev_pr
 
 sysfs_failed:
 	result = -ENOMEM;
-	ipoib_delete_debug_files(priv->dev);
 	unregister_netdevice(priv->dev);
 
 register_failed:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/iser/iscsi_iser.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/iser/iscsi_iser.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/iser/iscsi_iser.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/iser/iscsi_iser.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,6 +83,7 @@ static struct scsi_host_template iscsi_i
 static struct iscsi_transport iscsi_iser_transport;
 static struct scsi_transport_template *iscsi_iser_scsi_transport;
 static struct workqueue_struct *release_wq;
+static DEFINE_MUTEX(unbind_iser_conn_mutex);
 struct iser_global ig;
 
 int iser_debug_level = 0;
@@ -550,12 +551,14 @@ iscsi_iser_conn_stop(struct iscsi_cls_co
 	 */
 	if (iser_conn) {
 		mutex_lock(&iser_conn->state_mutex);
+		mutex_lock(&unbind_iser_conn_mutex);
 		iser_conn_terminate(iser_conn);
 		iscsi_conn_stop(cls_conn, flag);
 
 		/* unbind */
 		iser_conn->iscsi_conn = NULL;
 		conn->dd_data = NULL;
+		mutex_unlock(&unbind_iser_conn_mutex);
 
 		complete(&iser_conn->stop_completion);
 		mutex_unlock(&iser_conn->state_mutex);
@@ -651,13 +654,6 @@ iscsi_iser_session_create(struct iscsi_e
 						   SHOST_DIX_GUARD_CRC);
 		}
 
-		/*
-		 * Limit the sg_tablesize and max_sectors based on the device
-		 * max fastreg page list length.
-		 */
-		shost->sg_tablesize = min_t(unsigned short, shost->sg_tablesize,
-			ib_conn->device->ib_device->attrs.max_fast_reg_page_list_len);
-
 		if (iscsi_host_add(shost,
 				   ib_conn->device->ib_device->dma_device)) {
 			mutex_unlock(&iser_conn->state_mutex);
@@ -980,13 +976,21 @@ static int iscsi_iser_slave_alloc(struct
 	struct iser_conn *iser_conn;
 	struct ib_device *ib_dev;
 
+	mutex_lock(&unbind_iser_conn_mutex);
+
 	session = starget_to_session(scsi_target(sdev))->dd_data;
 	iser_conn = session->leadconn->dd_data;
+	if (!iser_conn) {
+		mutex_unlock(&unbind_iser_conn_mutex);
+		return -ENOTCONN;
+	}
 	ib_dev = iser_conn->ib_conn.device->ib_device;
 
 	if (!(ib_dev->attrs.device_cap_flags & IB_DEVICE_SG_GAPS_REG))
 		blk_queue_virt_boundary(sdev->request_queue, ~MASK_4K);
 
+	mutex_unlock(&unbind_iser_conn_mutex);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/isert/ib_isert.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/isert/ib_isert.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/isert/ib_isert.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/isert/ib_isert.c	2017-09-27 08:40:05.000000000 -0400
@@ -1447,7 +1447,7 @@ static void
 isert_login_recv_done(struct ib_cq *cq, struct ib_wc *wc)
 {
 	struct isert_conn *isert_conn = wc->qp->qp_context;
-	struct ib_device *ib_dev = isert_conn->cm_id->device;
+	struct ib_device *ib_dev = isert_conn->device->ib_device;
 
 	if (unlikely(wc->status != IB_WC_SUCCESS)) {
 		isert_print_wc(wc, "login recv");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/srp/ib_srp.c linux-libre-4.9.52-gnu/drivers/infiniband/ulp/srp/ib_srp.c
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/srp/ib_srp.c	2017-09-27 08:40:05.000000000 -0400
@@ -1872,17 +1872,24 @@ static void srp_process_rsp(struct srp_r
 	if (unlikely(rsp->tag & SRP_TAG_TSK_MGMT)) {
 		spin_lock_irqsave(&ch->lock, flags);
 		ch->req_lim += be32_to_cpu(rsp->req_lim_delta);
+		if (rsp->tag == ch->tsk_mgmt_tag) {
+			ch->tsk_mgmt_status = -1;
+			if (be32_to_cpu(rsp->resp_data_len) >= 4)
+				ch->tsk_mgmt_status = rsp->data[3];
+			complete(&ch->tsk_mgmt_done);
+		} else {
+			shost_printk(KERN_ERR, target->scsi_host,
+				     "Received tsk mgmt response too late for tag %#llx\n",
+				     rsp->tag);
+		}
 		spin_unlock_irqrestore(&ch->lock, flags);
-
-		ch->tsk_mgmt_status = -1;
-		if (be32_to_cpu(rsp->resp_data_len) >= 4)
-			ch->tsk_mgmt_status = rsp->data[3];
-		complete(&ch->tsk_mgmt_done);
 	} else {
 		scmnd = scsi_host_find_tag(target->scsi_host, rsp->tag);
-		if (scmnd) {
+		if (scmnd && scmnd->host_scribble) {
 			req = (void *)scmnd->host_scribble;
 			scmnd = srp_claim_req(ch, req, NULL, scmnd);
+		} else {
+			scmnd = NULL;
 		}
 		if (!scmnd) {
 			shost_printk(KERN_ERR, target->scsi_host,
@@ -2514,19 +2521,18 @@ srp_change_queue_depth(struct scsi_devic
 }
 
 static int srp_send_tsk_mgmt(struct srp_rdma_ch *ch, u64 req_tag, u64 lun,
-			     u8 func)
+			     u8 func, u8 *status)
 {
 	struct srp_target_port *target = ch->target;
 	struct srp_rport *rport = target->rport;
 	struct ib_device *dev = target->srp_host->srp_dev->dev;
 	struct srp_iu *iu;
 	struct srp_tsk_mgmt *tsk_mgmt;
+	int res;
 
 	if (!ch->connected || target->qp_in_error)
 		return -1;
 
-	init_completion(&ch->tsk_mgmt_done);
-
 	/*
 	 * Lock the rport mutex to avoid that srp_create_ch_ib() is
 	 * invoked while a task management function is being sent.
@@ -2549,10 +2555,16 @@ static int srp_send_tsk_mgmt(struct srp_
 
 	tsk_mgmt->opcode 	= SRP_TSK_MGMT;
 	int_to_scsilun(lun, &tsk_mgmt->lun);
-	tsk_mgmt->tag		= req_tag | SRP_TAG_TSK_MGMT;
 	tsk_mgmt->tsk_mgmt_func = func;
 	tsk_mgmt->task_tag	= req_tag;
 
+	spin_lock_irq(&ch->lock);
+	ch->tsk_mgmt_tag = (ch->tsk_mgmt_tag + 1) | SRP_TAG_TSK_MGMT;
+	tsk_mgmt->tag = ch->tsk_mgmt_tag;
+	spin_unlock_irq(&ch->lock);
+
+	init_completion(&ch->tsk_mgmt_done);
+
 	ib_dma_sync_single_for_device(dev, iu->dma, sizeof *tsk_mgmt,
 				      DMA_TO_DEVICE);
 	if (srp_post_send(ch, iu, sizeof(*tsk_mgmt))) {
@@ -2561,13 +2573,15 @@ static int srp_send_tsk_mgmt(struct srp_
 
 		return -1;
 	}
+	res = wait_for_completion_timeout(&ch->tsk_mgmt_done,
+					msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS));
+	if (res > 0 && status)
+		*status = ch->tsk_mgmt_status;
 	mutex_unlock(&rport->mutex);
 
-	if (!wait_for_completion_timeout(&ch->tsk_mgmt_done,
-					 msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS)))
-		return -1;
+	WARN_ON_ONCE(res < 0);
 
-	return 0;
+	return res > 0 ? 0 : -1;
 }
 
 static int srp_abort(struct scsi_cmnd *scmnd)
@@ -2593,7 +2607,7 @@ static int srp_abort(struct scsi_cmnd *s
 	shost_printk(KERN_ERR, target->scsi_host,
 		     "Sending SRP abort for tag %#x\n", tag);
 	if (srp_send_tsk_mgmt(ch, tag, scmnd->device->lun,
-			      SRP_TSK_ABORT_TASK) == 0)
+			      SRP_TSK_ABORT_TASK, NULL) == 0)
 		ret = SUCCESS;
 	else if (target->rport->state == SRP_RPORT_LOST)
 		ret = FAST_IO_FAIL;
@@ -2611,14 +2625,15 @@ static int srp_reset_device(struct scsi_
 	struct srp_target_port *target = host_to_target(scmnd->device->host);
 	struct srp_rdma_ch *ch;
 	int i;
+	u8 status;
 
 	shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
 
 	ch = &target->ch[0];
 	if (srp_send_tsk_mgmt(ch, SRP_TAG_NO_REQ, scmnd->device->lun,
-			      SRP_TSK_LUN_RESET))
+			      SRP_TSK_LUN_RESET, &status))
 		return FAILED;
-	if (ch->tsk_mgmt_status)
+	if (status)
 		return FAILED;
 
 	for (i = 0; i < target->ch_count; i++) {
@@ -2647,9 +2662,8 @@ static int srp_slave_alloc(struct scsi_d
 	struct Scsi_Host *shost = sdev->host;
 	struct srp_target_port *target = host_to_target(shost);
 	struct srp_device *srp_dev = target->srp_host->srp_dev;
-	struct ib_device *ibdev = srp_dev->dev;
 
-	if (!(ibdev->attrs.device_cap_flags & IB_DEVICE_SG_GAPS_REG))
+	if (true)
 		blk_queue_virt_boundary(sdev->request_queue,
 					~srp_dev->mr_page_mask);
 
@@ -3678,6 +3692,12 @@ static int __init srp_init_module(void)
 		indirect_sg_entries = cmd_sg_entries;
 	}
 
+	if (indirect_sg_entries > SG_MAX_SEGMENTS) {
+		pr_warn("Clamping indirect_sg_entries to %u\n",
+			SG_MAX_SEGMENTS);
+		indirect_sg_entries = SG_MAX_SEGMENTS;
+	}
+
 	srp_remove_wq = create_workqueue("srp_remove");
 	if (!srp_remove_wq) {
 		ret = -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/infiniband/ulp/srp/ib_srp.h linux-libre-4.9.52-gnu/drivers/infiniband/ulp/srp/ib_srp.h
--- linux-libre-4.9-gnu/drivers/infiniband/ulp/srp/ib_srp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/infiniband/ulp/srp/ib_srp.h	2017-09-27 08:40:05.000000000 -0400
@@ -163,6 +163,7 @@ struct srp_rdma_ch {
 	int			max_ti_iu_len;
 	int			comp_vector;
 
+	u64			tsk_mgmt_tag;
 	struct completion	tsk_mgmt_done;
 	u8			tsk_mgmt_status;
 	bool			connected;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/joystick/iforce/iforce-usb.c linux-libre-4.9.52-gnu/drivers/input/joystick/iforce/iforce-usb.c
--- linux-libre-4.9-gnu/drivers/input/joystick/iforce/iforce-usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/joystick/iforce/iforce-usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -141,6 +141,9 @@ static int iforce_usb_probe(struct usb_i
 
 	interface = intf->cur_altsetting;
 
+	if (interface->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	epirq = &interface->endpoint[0].desc;
 	epout = &interface->endpoint[1].desc;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/joystick/xpad.c linux-libre-4.9.52-gnu/drivers/input/joystick/xpad.c
--- linux-libre-4.9-gnu/drivers/input/joystick/xpad.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/joystick/xpad.c	2017-09-27 08:40:05.000000000 -0400
@@ -201,6 +201,7 @@ static const struct xpad_device {
 	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
 	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
 	{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
+	{ 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
 	{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
 	{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
 	{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
@@ -329,6 +330,7 @@ static struct usb_device_id xpad_table[]
 	XPAD_XBOX360_VENDOR(0x24c6),		/* PowerA Controllers */
 	XPAD_XBOXONE_VENDOR(0x24c6),		/* PowerA Controllers */
 	XPAD_XBOX360_VENDOR(0x1532),		/* Razer Sabertooth */
+	XPAD_XBOXONE_VENDOR(0x1532),		/* Razer Wildcat */
 	XPAD_XBOX360_VENDOR(0x15e4),		/* Numark X-Box 360 controllers */
 	XPAD_XBOX360_VENDOR(0x162e),		/* Joytech X-Box 360 controllers */
 	{ }
@@ -1376,6 +1378,12 @@ static int xpad_init_input(struct usb_xp
 	input_dev->name = xpad->name;
 	input_dev->phys = xpad->phys;
 	usb_to_input_id(xpad->udev, &input_dev->id);
+
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		/* x360w controllers and the receiver have different ids */
+		input_dev->id.product = 0x02a1;
+	}
+
 	input_dev->dev.parent = &xpad->intf->dev;
 
 	input_set_drvdata(input_dev, xpad);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/keyboard/gpio_keys.c linux-libre-4.9.52-gnu/drivers/input/keyboard/gpio_keys.c
--- linux-libre-4.9-gnu/drivers/input/keyboard/gpio_keys.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/keyboard/gpio_keys.c	2017-09-27 08:40:05.000000000 -0400
@@ -26,6 +26,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/workqueue.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
@@ -35,6 +36,7 @@
 struct gpio_button_data {
 	const struct gpio_keys_button *button;
 	struct input_dev *input;
+	struct gpio_desc *gpiod;
 
 	struct timer_list release_timer;
 	unsigned int release_delay;	/* in msecs, for IRQ-only buttons */
@@ -140,7 +142,7 @@ static void gpio_keys_disable_button(str
 		 */
 		disable_irq(bdata->irq);
 
-		if (gpio_is_valid(bdata->button->gpio))
+		if (bdata->gpiod)
 			cancel_delayed_work_sync(&bdata->work);
 		else
 			del_timer_sync(&bdata->release_timer);
@@ -358,19 +360,20 @@ static void gpio_keys_gpio_report_event(
 	const struct gpio_keys_button *button = bdata->button;
 	struct input_dev *input = bdata->input;
 	unsigned int type = button->type ?: EV_KEY;
-	int state = gpio_get_value_cansleep(button->gpio);
+	int state;
 
+	state = gpiod_get_value_cansleep(bdata->gpiod);
 	if (state < 0) {
-		dev_err(input->dev.parent, "failed to get gpio state\n");
+		dev_err(input->dev.parent,
+			"failed to get gpio state: %d\n", state);
 		return;
 	}
 
-	state = (state ? 1 : 0) ^ button->active_low;
 	if (type == EV_ABS) {
 		if (state)
 			input_event(input, type, button->code, button->value);
 	} else {
-		input_event(input, type, button->code, !!state);
+		input_event(input, type, button->code, state);
 	}
 	input_sync(input);
 }
@@ -456,7 +459,7 @@ static void gpio_keys_quiesce_key(void *
 {
 	struct gpio_button_data *bdata = data;
 
-	if (gpio_is_valid(bdata->button->gpio))
+	if (bdata->gpiod)
 		cancel_delayed_work_sync(&bdata->work);
 	else
 		del_timer_sync(&bdata->release_timer);
@@ -478,18 +481,30 @@ static int gpio_keys_setup_key(struct pl
 	bdata->button = button;
 	spin_lock_init(&bdata->lock);
 
+	/*
+	 * Legacy GPIO number, so request the GPIO here and
+	 * convert it to descriptor.
+	 */
 	if (gpio_is_valid(button->gpio)) {
+		unsigned flags = GPIOF_IN;
 
-		error = devm_gpio_request_one(&pdev->dev, button->gpio,
-					      GPIOF_IN, desc);
+		if (button->active_low)
+			flags |= GPIOF_ACTIVE_LOW;
+
+		error = devm_gpio_request_one(&pdev->dev, button->gpio, flags,
+					      desc);
 		if (error < 0) {
 			dev_err(dev, "Failed to request GPIO %d, error %d\n",
 				button->gpio, error);
 			return error;
 		}
 
+		bdata->gpiod = gpio_to_desc(button->gpio);
+		if (!bdata->gpiod)
+			return -EINVAL;
+
 		if (button->debounce_interval) {
-			error = gpio_set_debounce(button->gpio,
+			error = gpiod_set_debounce(bdata->gpiod,
 					button->debounce_interval * 1000);
 			/* use timer if gpiolib doesn't provide debounce */
 			if (error < 0)
@@ -500,7 +515,7 @@ static int gpio_keys_setup_key(struct pl
 		if (button->irq) {
 			bdata->irq = button->irq;
 		} else {
-			irq = gpio_to_irq(button->gpio);
+			irq = gpiod_to_irq(bdata->gpiod);
 			if (irq < 0) {
 				error = irq;
 				dev_err(dev,
@@ -575,7 +590,7 @@ static void gpio_keys_report_state(struc
 
 	for (i = 0; i < ddata->pdata->nbuttons; i++) {
 		struct gpio_button_data *bdata = &ddata->data[i];
-		if (gpio_is_valid(bdata->button->gpio))
+		if (bdata->gpiod)
 			gpio_keys_gpio_report_event(bdata);
 	}
 	input_sync(input);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/misc/cm109.c linux-libre-4.9.52-gnu/drivers/input/misc/cm109.c
--- linux-libre-4.9-gnu/drivers/input/misc/cm109.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/misc/cm109.c	2017-09-27 08:40:05.000000000 -0400
@@ -700,6 +700,10 @@ static int cm109_usb_probe(struct usb_in
 	int error = -ENOMEM;
 
 	interface = intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &interface->endpoint[0].desc;
 
 	if (!usb_endpoint_is_int_in(endpoint))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/misc/drv260x.c linux-libre-4.9.52-gnu/drivers/input/misc/drv260x.c
--- linux-libre-4.9-gnu/drivers/input/misc/drv260x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/misc/drv260x.c	2017-09-27 08:40:05.000000000 -0400
@@ -592,7 +592,6 @@ static int drv260x_probe(struct i2c_clie
 	}
 
 	haptics->input_dev->name = "drv260x:haptics";
-	haptics->input_dev->dev.parent = client->dev.parent;
 	haptics->input_dev->close = drv260x_close;
 	input_set_drvdata(haptics->input_dev, haptics);
 	input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/misc/ims-pcu.c linux-libre-4.9.52-gnu/drivers/input/misc/ims-pcu.c
--- linux-libre-4.9-gnu/drivers/input/misc/ims-pcu.c	2016-12-11 17:58:31.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/misc/ims-pcu.c	2017-09-27 15:12:35.000000000 -0400
@@ -1667,6 +1667,10 @@ static int ims_pcu_parse_cdc_data(struct
 		return -EINVAL;
 
 	alt = pcu->ctrl_intf->cur_altsetting;
+
+	if (alt->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	pcu->ep_ctrl = &alt->endpoint[0].desc;
 	pcu->max_ctrl_size = usb_endpoint_maxp(pcu->ep_ctrl);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/misc/uinput.c linux-libre-4.9.52-gnu/drivers/input/misc/uinput.c
--- linux-libre-4.9-gnu/drivers/input/misc/uinput.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/misc/uinput.c	2017-09-27 08:40:05.000000000 -0400
@@ -263,13 +263,21 @@ static int uinput_create_device(struct u
 		return -EINVAL;
 	}
 
-	if (test_bit(ABS_MT_SLOT, dev->absbit)) {
-		nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
-		error = input_mt_init_slots(dev, nslot, 0);
-		if (error)
+	if (test_bit(EV_ABS, dev->evbit)) {
+		input_alloc_absinfo(dev);
+		if (!dev->absinfo) {
+			error = -EINVAL;
 			goto fail1;
-	} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
-		input_set_events_per_packet(dev, 60);
+		}
+
+		if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+			nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+			error = input_mt_init_slots(dev, nslot, 0);
+			if (error)
+				goto fail1;
+		} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+			input_set_events_per_packet(dev, 60);
+		}
 	}
 
 	if (test_bit(EV_FF, dev->evbit) && !udev->ff_effects_max) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/misc/yealink.c linux-libre-4.9.52-gnu/drivers/input/misc/yealink.c
--- linux-libre-4.9-gnu/drivers/input/misc/yealink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/misc/yealink.c	2017-09-27 08:40:05.000000000 -0400
@@ -875,6 +875,10 @@ static int usb_probe(struct usb_interfac
 	int ret, pipe, i;
 
 	interface = intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &interface->endpoint[0].desc;
 	if (!usb_endpoint_is_int_in(endpoint))
 		return -ENODEV;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/mouse/alps.c linux-libre-4.9.52-gnu/drivers/input/mouse/alps.c
--- linux-libre-4.9-gnu/drivers/input/mouse/alps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/mouse/alps.c	2017-09-27 08:40:05.000000000 -0400
@@ -1212,14 +1212,24 @@ static int alps_decode_ss4_v2(struct alp
 
 	case SS4_PACKET_ID_TWO:
 		if (priv->flags & ALPS_BUTTONPAD) {
-			f->mt[0].x = SS4_BTL_MF_X_V2(p, 0);
+			if (IS_SS4PLUS_DEV(priv->dev_id)) {
+				f->mt[0].x = SS4_PLUS_BTL_MF_X_V2(p, 0);
+				f->mt[1].x = SS4_PLUS_BTL_MF_X_V2(p, 1);
+			} else {
+				f->mt[0].x = SS4_BTL_MF_X_V2(p, 0);
+				f->mt[1].x = SS4_BTL_MF_X_V2(p, 1);
+			}
 			f->mt[0].y = SS4_BTL_MF_Y_V2(p, 0);
-			f->mt[1].x = SS4_BTL_MF_X_V2(p, 1);
 			f->mt[1].y = SS4_BTL_MF_Y_V2(p, 1);
 		} else {
-			f->mt[0].x = SS4_STD_MF_X_V2(p, 0);
+			if (IS_SS4PLUS_DEV(priv->dev_id)) {
+				f->mt[0].x = SS4_PLUS_STD_MF_X_V2(p, 0);
+				f->mt[1].x = SS4_PLUS_STD_MF_X_V2(p, 1);
+			} else {
+				f->mt[0].x = SS4_STD_MF_X_V2(p, 0);
+				f->mt[1].x = SS4_STD_MF_X_V2(p, 1);
+			}
 			f->mt[0].y = SS4_STD_MF_Y_V2(p, 0);
-			f->mt[1].x = SS4_STD_MF_X_V2(p, 1);
 			f->mt[1].y = SS4_STD_MF_Y_V2(p, 1);
 		}
 		f->pressure = SS4_MF_Z_V2(p, 0) ? 0x30 : 0;
@@ -1236,16 +1246,27 @@ static int alps_decode_ss4_v2(struct alp
 
 	case SS4_PACKET_ID_MULTI:
 		if (priv->flags & ALPS_BUTTONPAD) {
-			f->mt[2].x = SS4_BTL_MF_X_V2(p, 0);
+			if (IS_SS4PLUS_DEV(priv->dev_id)) {
+				f->mt[0].x = SS4_PLUS_BTL_MF_X_V2(p, 0);
+				f->mt[1].x = SS4_PLUS_BTL_MF_X_V2(p, 1);
+			} else {
+				f->mt[2].x = SS4_BTL_MF_X_V2(p, 0);
+				f->mt[3].x = SS4_BTL_MF_X_V2(p, 1);
+			}
+
 			f->mt[2].y = SS4_BTL_MF_Y_V2(p, 0);
-			f->mt[3].x = SS4_BTL_MF_X_V2(p, 1);
 			f->mt[3].y = SS4_BTL_MF_Y_V2(p, 1);
 			no_data_x = SS4_MFPACKET_NO_AX_BL;
 			no_data_y = SS4_MFPACKET_NO_AY_BL;
 		} else {
-			f->mt[2].x = SS4_STD_MF_X_V2(p, 0);
+			if (IS_SS4PLUS_DEV(priv->dev_id)) {
+				f->mt[0].x = SS4_PLUS_STD_MF_X_V2(p, 0);
+				f->mt[1].x = SS4_PLUS_STD_MF_X_V2(p, 1);
+			} else {
+				f->mt[0].x = SS4_STD_MF_X_V2(p, 0);
+				f->mt[1].x = SS4_STD_MF_X_V2(p, 1);
+			}
 			f->mt[2].y = SS4_STD_MF_Y_V2(p, 0);
-			f->mt[3].x = SS4_STD_MF_X_V2(p, 1);
 			f->mt[3].y = SS4_STD_MF_Y_V2(p, 1);
 			no_data_x = SS4_MFPACKET_NO_AX;
 			no_data_y = SS4_MFPACKET_NO_AY;
@@ -1290,10 +1311,8 @@ static int alps_decode_ss4_v2(struct alp
 	/* handle buttons */
 	if (pkt_id == SS4_PACKET_ID_STICK) {
 		f->ts_left = !!(SS4_BTN_V2(p) & 0x01);
-		if (!(priv->flags & ALPS_BUTTONPAD)) {
-			f->ts_right = !!(SS4_BTN_V2(p) & 0x02);
-			f->ts_middle = !!(SS4_BTN_V2(p) & 0x04);
-		}
+		f->ts_right = !!(SS4_BTN_V2(p) & 0x02);
+		f->ts_middle = !!(SS4_BTN_V2(p) & 0x04);
 	} else {
 		f->left = !!(SS4_BTN_V2(p) & 0x01);
 		if (!(priv->flags & ALPS_BUTTONPAD)) {
@@ -1346,6 +1365,18 @@ static void alps_process_packet_ss4_v2(s
 
 	priv->multi_packet = 0;
 
+	/* Report trackstick */
+	if (alps_get_pkt_id_ss4_v2(packet) == SS4_PACKET_ID_STICK) {
+		if (priv->flags & ALPS_DUALPOINT) {
+			input_report_key(dev2, BTN_LEFT, f->ts_left);
+			input_report_key(dev2, BTN_RIGHT, f->ts_right);
+			input_report_key(dev2, BTN_MIDDLE, f->ts_middle);
+			input_sync(dev2);
+		}
+		return;
+	}
+
+	/* Report touchpad */
 	alps_report_mt_data(psmouse, (f->fingers <= 4) ? f->fingers : 4);
 
 	input_mt_report_finger_count(dev, f->fingers);
@@ -1356,13 +1387,6 @@ static void alps_process_packet_ss4_v2(s
 
 	input_report_abs(dev, ABS_PRESSURE, f->pressure);
 	input_sync(dev);
-
-	if (priv->flags & ALPS_DUALPOINT) {
-		input_report_key(dev2, BTN_LEFT, f->ts_left);
-		input_report_key(dev2, BTN_RIGHT, f->ts_right);
-		input_report_key(dev2, BTN_MIDDLE, f->ts_middle);
-		input_sync(dev2);
-	}
 }
 
 static bool alps_is_valid_package_ss4_v2(struct psmouse *psmouse)
@@ -2456,14 +2480,34 @@ static int alps_update_device_area_ss4_v
 	int num_y_electrode;
 	int x_pitch, y_pitch, x_phys, y_phys;
 
-	num_x_electrode = SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
-	num_y_electrode = SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
+	if (IS_SS4PLUS_DEV(priv->dev_id)) {
+		num_x_electrode =
+			SS4PLUS_NUMSENSOR_XOFFSET + (otp[0][2] & 0x0F);
+		num_y_electrode =
+			SS4PLUS_NUMSENSOR_YOFFSET + ((otp[0][2] >> 4) & 0x0F);
 
-	priv->x_max = (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
-	priv->y_max = (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+		priv->x_max =
+			(num_x_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
+		priv->y_max =
+			(num_y_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
 
-	x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
-	y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
+		x_pitch = (otp[0][1] & 0x0F) + SS4PLUS_MIN_PITCH_MM;
+		y_pitch = ((otp[0][1] >> 4) & 0x0F) + SS4PLUS_MIN_PITCH_MM;
+
+	} else {
+		num_x_electrode =
+			SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
+		num_y_electrode =
+			SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
+
+		priv->x_max =
+			(num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+		priv->y_max =
+			(num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+
+		x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
+		y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
+	}
 
 	x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */
 	y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */
@@ -2479,7 +2523,10 @@ static int alps_update_btn_info_ss4_v2(u
 {
 	unsigned char is_btnless;
 
-	is_btnless = (otp[1][1] >> 3) & 0x01;
+	if (IS_SS4PLUS_DEV(priv->dev_id))
+		is_btnless = (otp[1][0] >> 1) & 0x01;
+	else
+		is_btnless = (otp[1][1] >> 3) & 0x01;
 
 	if (is_btnless)
 		priv->flags |= ALPS_BUTTONPAD;
@@ -2487,6 +2534,21 @@ static int alps_update_btn_info_ss4_v2(u
 	return 0;
 }
 
+static int alps_update_dual_info_ss4_v2(unsigned char otp[][4],
+				       struct alps_data *priv)
+{
+	bool is_dual = false;
+
+	if (IS_SS4PLUS_DEV(priv->dev_id))
+		is_dual = (otp[0][0] >> 4) & 0x01;
+
+	if (is_dual)
+		priv->flags |= ALPS_DUALPOINT |
+					ALPS_DUALPOINT_WITH_PRESSURE;
+
+	return 0;
+}
+
 static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
 				    struct alps_data *priv)
 {
@@ -2494,14 +2556,16 @@ static int alps_set_defaults_ss4_v2(stru
 
 	memset(otp, 0, sizeof(otp));
 
-	if (alps_get_otp_values_ss4_v2(psmouse, 0, &otp[0][0]) ||
-	    alps_get_otp_values_ss4_v2(psmouse, 1, &otp[1][0]))
+	if (alps_get_otp_values_ss4_v2(psmouse, 1, &otp[1][0]) ||
+	    alps_get_otp_values_ss4_v2(psmouse, 0, &otp[0][0]))
 		return -1;
 
 	alps_update_device_area_ss4_v2(otp, priv);
 
 	alps_update_btn_info_ss4_v2(otp, priv);
 
+	alps_update_dual_info_ss4_v2(otp, priv);
+
 	return 0;
 }
 
@@ -2747,10 +2811,6 @@ static int alps_set_protocol(struct psmo
 		if (alps_set_defaults_ss4_v2(psmouse, priv))
 			return -EIO;
 
-		if (priv->fw_ver[1] == 0x1)
-			priv->flags |= ALPS_DUALPOINT |
-					ALPS_DUALPOINT_WITH_PRESSURE;
-
 		break;
 	}
 
@@ -2821,10 +2881,7 @@ static int alps_identify(struct psmouse
 			   ec[2] >= 0x90 && ec[2] <= 0x9d) {
 			protocol = &alps_v3_protocol_data;
 		} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
-			   e7[2] == 0x14 && ec[1] == 0x02) {
-			protocol = &alps_v8_protocol_data;
-		} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
-			   e7[2] == 0x28 && ec[1] == 0x01) {
+			   (e7[2] == 0x14 || e7[2] == 0x28)) {
 			protocol = &alps_v8_protocol_data;
 		} else {
 			psmouse_dbg(psmouse,
@@ -2834,7 +2891,8 @@ static int alps_identify(struct psmouse
 	}
 
 	if (priv) {
-		/* Save the Firmware version */
+		/* Save Device ID and Firmware version */
+		memcpy(priv->dev_id, e7, 3);
 		memcpy(priv->fw_ver, ec, 3);
 		error = alps_set_protocol(psmouse, priv, protocol);
 		if (error)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/mouse/alps.h linux-libre-4.9.52-gnu/drivers/input/mouse/alps.h
--- linux-libre-4.9-gnu/drivers/input/mouse/alps.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/mouse/alps.h	2017-09-27 08:40:05.000000000 -0400
@@ -54,6 +54,16 @@ enum SS4_PACKET_ID {
 
 #define SS4_MASK_NORMAL_BUTTONS		0x07
 
+#define SS4PLUS_COUNT_PER_ELECTRODE	128
+#define SS4PLUS_NUMSENSOR_XOFFSET	16
+#define SS4PLUS_NUMSENSOR_YOFFSET	5
+#define SS4PLUS_MIN_PITCH_MM		37
+
+#define IS_SS4PLUS_DEV(_b)	(((_b[0]) == 0x73) &&	\
+				 ((_b[1]) == 0x03) &&	\
+				 ((_b[2]) == 0x28)		\
+				)
+
 #define SS4_1F_X_V2(_b)		((_b[0] & 0x0007) |		\
 				 ((_b[1] << 3) & 0x0078) |	\
 				 ((_b[1] << 2) & 0x0380) |	\
@@ -81,6 +91,10 @@ enum SS4_PACKET_ID {
 				 ((_b[1 + _i * 3]  << 5) & 0x1F00)	\
 				)
 
+#define SS4_PLUS_STD_MF_X_V2(_b, _i) (((_b[0 + (_i) * 3] << 4) & 0x0070) | \
+				 ((_b[1 + (_i) * 3]  << 4) & 0x0F80)	\
+				)
+
 #define SS4_STD_MF_Y_V2(_b, _i)	(((_b[1 + (_i) * 3] << 3) & 0x0010) |	\
 				 ((_b[2 + (_i) * 3] << 5) & 0x01E0) |	\
 				 ((_b[2 + (_i) * 3] << 4) & 0x0E00)	\
@@ -90,6 +104,10 @@ enum SS4_PACKET_ID {
 				 ((_b[0 + (_i) * 3] >> 3) & 0x0010)	\
 				)
 
+#define SS4_PLUS_BTL_MF_X_V2(_b, _i) (SS4_PLUS_STD_MF_X_V2(_b, _i) |	\
+				 ((_b[0 + (_i) * 3] >> 4) & 0x0008)	\
+				)
+
 #define SS4_BTL_MF_Y_V2(_b, _i)	(SS4_STD_MF_Y_V2(_b, _i) | \
 				 ((_b[0 + (_i) * 3] >> 3) & 0x0008)	\
 				)
@@ -263,6 +281,7 @@ struct alps_data {
 	int addr_command;
 	u16 proto_version;
 	u8 byte0, mask0;
+	u8 dev_id[3];
 	u8 fw_ver[3];
 	int flags;
 	int x_max;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/mouse/elan_i2c_core.c linux-libre-4.9.52-gnu/drivers/input/mouse/elan_i2c_core.c
--- linux-libre-4.9-gnu/drivers/input/mouse/elan_i2c_core.c	2016-12-11 17:57:58.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/mouse/elan_i2c_core.c	2017-09-27 15:11:24.000000000 -0400
@@ -218,17 +218,19 @@ static int elan_query_product(struct ela
 
 static int elan_check_ASUS_special_fw(struct elan_tp_data *data)
 {
-	if (data->ic_type != 0x0E)
-		return false;
-
-	switch (data->product_id) {
-	case 0x05 ... 0x07:
-	case 0x09:
-	case 0x13:
+	if (data->ic_type == 0x0E) {
+		switch (data->product_id) {
+		case 0x05 ... 0x07:
+		case 0x09:
+		case 0x13:
+			return true;
+		}
+	} else if (data->ic_type == 0x08 && data->product_id == 0x26) {
+		/* ASUS EeeBook X205TA */
 		return true;
-	default:
-		return false;
 	}
+
+	return false;
 }
 
 static int __elan_initialize(struct elan_tp_data *data)
@@ -1232,6 +1234,12 @@ static const struct acpi_device_id elan_
 	{ "ELAN0000", 0 },
 	{ "ELAN0100", 0 },
 	{ "ELAN0600", 0 },
+	{ "ELAN0602", 0 },
+	{ "ELAN0605", 0 },
+	{ "ELAN0608", 0 },
+	{ "ELAN0605", 0 },
+	{ "ELAN0609", 0 },
+	{ "ELAN060B", 0 },
 	{ "ELAN1000", 0 },
 	{ }
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/mouse/elantech.c linux-libre-4.9.52-gnu/drivers/input/mouse/elantech.c
--- linux-libre-4.9-gnu/drivers/input/mouse/elantech.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/mouse/elantech.c	2017-09-27 08:40:05.000000000 -0400
@@ -1118,7 +1118,10 @@ static int elantech_get_resolution_v4(st
  * Asus UX32VD             0x361f02        00, 15, 0e      clickpad
  * Avatar AVIU-145A2       0x361f00        ?               clickpad
  * Fujitsu LIFEBOOK E544   0x470f00        d0, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E546   0x470f00        50, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E547   0x470f00        50, 12, 09      2 hw buttons
  * Fujitsu LIFEBOOK E554   0x570f01        40, 14, 0c      2 hw buttons
+ * Fujitsu LIFEBOOK E557   0x570f01        40, 14, 0c      2 hw buttons
  * Fujitsu T725            0x470f01        05, 12, 09      2 hw buttons
  * Fujitsu H730            0x570f00        c0, 14, 0c      3 hw buttons (**)
  * Gigabyte U2442          0x450f01        58, 17, 0c      2 hw buttons
@@ -1524,6 +1527,20 @@ static const struct dmi_system_id elante
 		},
 	},
 	{
+		/* Fujitsu LIFEBOOK E546  does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E546"),
+		},
+	},
+	{
+		/* Fujitsu LIFEBOOK E547 does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E547"),
+		},
+	},
+	{
 		/* Fujitsu LIFEBOOK E554  does not work with crc_enabled == 0 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
@@ -1538,6 +1555,13 @@ static const struct dmi_system_id elante
 		},
 	},
 	{
+		/* Fujitsu LIFEBOOK E557 does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E557"),
+		},
+	},
+	{
 		/* Fujitsu LIFEBOOK U745 does not work with crc_enabled == 0 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/mouse/trackpoint.c linux-libre-4.9.52-gnu/drivers/input/mouse/trackpoint.c
--- linux-libre-4.9-gnu/drivers/input/mouse/trackpoint.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/mouse/trackpoint.c	2017-09-27 08:40:05.000000000 -0400
@@ -265,7 +265,8 @@ static int trackpoint_start_protocol(str
 	if (ps2_command(&psmouse->ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
 		return -1;
 
-	if (param[0] != TP_MAGIC_IDENT)
+	/* add new TP ID. */
+	if (!(param[0] & TP_MAGIC_IDENT))
 		return -1;
 
 	if (firmware_id)
@@ -380,8 +381,8 @@ int trackpoint_detect(struct psmouse *ps
 		return 0;
 
 	if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) {
-		psmouse_warn(psmouse, "failed to get extended button data\n");
-		button_info = 0;
+		psmouse_warn(psmouse, "failed to get extended button data, assuming 3 buttons\n");
+		button_info = 0x33;
 	}
 
 	psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/mouse/trackpoint.h linux-libre-4.9.52-gnu/drivers/input/mouse/trackpoint.h
--- linux-libre-4.9-gnu/drivers/input/mouse/trackpoint.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/mouse/trackpoint.h	2017-09-27 08:40:05.000000000 -0400
@@ -21,8 +21,9 @@
 #define TP_COMMAND		0xE2	/* Commands start with this */
 
 #define TP_READ_ID		0xE1	/* Sent for device identification */
-#define TP_MAGIC_IDENT		0x01	/* Sent after a TP_READ_ID followed */
+#define TP_MAGIC_IDENT		0x03	/* Sent after a TP_READ_ID followed */
 					/* by the firmware ID */
+					/* Firmware ID includes 0x1, 0x2, 0x3 */
 
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/rmi4/rmi_f54.c linux-libre-4.9.52-gnu/drivers/input/rmi4/rmi_f54.c
--- linux-libre-4.9-gnu/drivers/input/rmi4/rmi_f54.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/rmi4/rmi_f54.c	2017-09-27 08:40:05.000000000 -0400
@@ -200,7 +200,7 @@ static int rmi_f54_request_report(struct
 
 	error = rmi_write(rmi_dev, fn->fd.command_base_addr, F54_GET_REPORT);
 	if (error < 0)
-		return error;
+		goto unlock;
 
 	init_completion(&f54->cmd_done);
 
@@ -209,9 +209,10 @@ static int rmi_f54_request_report(struct
 
 	queue_delayed_work(f54->workqueue, &f54->work, 0);
 
+unlock:
 	mutex_unlock(&f54->data_mutex);
 
-	return 0;
+	return error;
 }
 
 static size_t rmi_f54_get_report_size(struct f54_data *f54)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/serio/i8042.c linux-libre-4.9.52-gnu/drivers/input/serio/i8042.c
--- linux-libre-4.9-gnu/drivers/input/serio/i8042.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/serio/i8042.c	2017-09-27 08:40:05.000000000 -0400
@@ -434,8 +434,10 @@ static int i8042_start(struct serio *ser
 {
 	struct i8042_port *port = serio->port_data;
 
+	spin_lock_irq(&i8042_lock);
 	port->exists = true;
-	mb();
+	spin_unlock_irq(&i8042_lock);
+
 	return 0;
 }
 
@@ -448,16 +450,20 @@ static void i8042_stop(struct serio *ser
 {
 	struct i8042_port *port = serio->port_data;
 
+	spin_lock_irq(&i8042_lock);
 	port->exists = false;
+	port->serio = NULL;
+	spin_unlock_irq(&i8042_lock);
 
 	/*
+	 * We need to make sure that interrupt handler finishes using
+	 * our serio port before we return from this function.
 	 * We synchronize with both AUX and KBD IRQs because there is
 	 * a (very unlikely) chance that AUX IRQ is raised for KBD port
 	 * and vice versa.
 	 */
 	synchronize_irq(I8042_AUX_IRQ);
 	synchronize_irq(I8042_KBD_IRQ);
-	port->serio = NULL;
 }
 
 /*
@@ -574,7 +580,7 @@ static irqreturn_t i8042_interrupt(int i
 
 	spin_unlock_irqrestore(&i8042_lock, flags);
 
-	if (likely(port->exists && !filtered))
+	if (likely(serio && !filtered))
 		serio_interrupt(serio, data, dfl);
 
  out:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/serio/i8042-x86ia64io.h linux-libre-4.9.52-gnu/drivers/input/serio/i8042-x86ia64io.h
--- linux-libre-4.9-gnu/drivers/input/serio/i8042-x86ia64io.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/serio/i8042-x86ia64io.h	2017-09-27 08:40:05.000000000 -0400
@@ -120,6 +120,13 @@ static const struct dmi_system_id __init
 		},
 	},
 	{
+		/* Dell Embedded Box PC 3000 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
+		},
+	},
+	{
 		/* OQO Model 01 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
@@ -211,6 +218,12 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
 		},
 	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "C15B"),
+		},
+	},
 	{ }
 };
 
@@ -672,6 +685,13 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
 		},
 	},
+	{
+		/* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
+		},
+	},
 	{ }
 };
 
@@ -768,6 +788,13 @@ static const struct dmi_system_id __init
 			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
 		},
 	},
+	{
+		/* Fujitsu UH554 laptop */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK UH544"),
+		},
+	},
 	{ }
 };
 
@@ -878,6 +905,13 @@ static const struct dmi_system_id __init
 		},
 	},
 	{
+		/* Gigabyte P57 - Elantech touchpad */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
+		},
+	},
+	{
 		/* Schenker XMG C504 - Elantech touchpad */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/tablet/hanwang.c linux-libre-4.9.52-gnu/drivers/input/tablet/hanwang.c
--- linux-libre-4.9-gnu/drivers/input/tablet/hanwang.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/tablet/hanwang.c	2017-09-27 08:40:05.000000000 -0400
@@ -340,6 +340,9 @@ static int hanwang_probe(struct usb_inte
 	int error;
 	int i;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!hanwang || !input_dev) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/tablet/kbtab.c linux-libre-4.9.52-gnu/drivers/input/tablet/kbtab.c
--- linux-libre-4.9-gnu/drivers/input/tablet/kbtab.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/tablet/kbtab.c	2017-09-27 08:40:05.000000000 -0400
@@ -122,6 +122,9 @@ static int kbtab_probe(struct usb_interf
 	struct input_dev *input_dev;
 	int error = -ENOMEM;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	kbtab = kzalloc(sizeof(struct kbtab), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!kbtab || !input_dev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/touchscreen/elants_i2c.c linux-libre-4.9.52-gnu/drivers/input/touchscreen/elants_i2c.c
--- linux-libre-4.9-gnu/drivers/input/touchscreen/elants_i2c.c	2016-12-11 17:58:04.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/touchscreen/elants_i2c.c	2017-09-27 15:11:33.000000000 -0400
@@ -914,9 +914,9 @@ static irqreturn_t elants_i2c_irq(int ir
 
 		case QUEUE_HEADER_NORMAL:
 			report_count = ts->buf[FW_HDR_COUNT];
-			if (report_count > 3) {
+			if (report_count == 0 || report_count > 3) {
 				dev_err(&client->dev,
-					"too large report count: %*ph\n",
+					"bad report count: %*ph\n",
 					HEADER_SIZE, ts->buf);
 				break;
 			}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/input/touchscreen/sur40.c linux-libre-4.9.52-gnu/drivers/input/touchscreen/sur40.c
--- linux-libre-4.9-gnu/drivers/input/touchscreen/sur40.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/input/touchscreen/sur40.c	2017-09-27 08:40:05.000000000 -0400
@@ -527,6 +527,9 @@ static int sur40_probe(struct usb_interf
 	if (iface_desc->desc.bInterfaceClass != 0xFF)
 		return -ENODEV;
 
+	if (iface_desc->desc.bNumEndpoints < 5)
+		return -ENODEV;
+
 	/* Use endpoint #4 (0x86). */
 	endpoint = &iface_desc->endpoint[4].desc;
 	if (endpoint->bEndpointAddress != TOUCH_ENDPOINT)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iommu/amd_iommu.c linux-libre-4.9.52-gnu/drivers/iommu/amd_iommu.c
--- linux-libre-4.9-gnu/drivers/iommu/amd_iommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iommu/amd_iommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -1021,7 +1021,7 @@ again:
 	next_tail = (tail + sizeof(*cmd)) % CMD_BUFFER_SIZE;
 	left      = (head - next_tail) % CMD_BUFFER_SIZE;
 
-	if (left <= 2) {
+	if (left <= 0x20) {
 		struct iommu_cmd sync_cmd;
 		int ret;
 
@@ -3857,11 +3857,9 @@ static void irte_ga_prepare(void *entry,
 			    u8 vector, u32 dest_apicid, int devid)
 {
 	struct irte_ga *irte = (struct irte_ga *) entry;
-	struct iommu_dev_data *dev_data = search_dev_data(devid);
 
 	irte->lo.val                      = 0;
 	irte->hi.val                      = 0;
-	irte->lo.fields_remap.guest_mode  = dev_data ? dev_data->use_vapic : 0;
 	irte->lo.fields_remap.int_type    = delivery_mode;
 	irte->lo.fields_remap.dm          = dest_mode;
 	irte->hi.fields.vector            = vector;
@@ -3917,10 +3915,10 @@ static void irte_ga_set_affinity(void *e
 	struct irte_ga *irte = (struct irte_ga *) entry;
 	struct iommu_dev_data *dev_data = search_dev_data(devid);
 
-	if (!dev_data || !dev_data->use_vapic) {
+	if (!dev_data || !dev_data->use_vapic ||
+	    !irte->lo.fields_remap.guest_mode) {
 		irte->hi.fields.vector = vector;
 		irte->lo.fields_remap.destination = dest_apicid;
-		irte->lo.fields_remap.guest_mode = 0;
 		modify_irte_ga(devid, index, irte, NULL);
 	}
 }
@@ -4296,6 +4294,7 @@ static int amd_ir_set_vcpu_affinity(stru
 		/* Setting */
 		irte->hi.fields.ga_root_ptr = (pi_data->base >> 12);
 		irte->hi.fields.vector = vcpu_pi_info->vector;
+		irte->lo.fields_vapic.ga_log_intr = 1;
 		irte->lo.fields_vapic.guest_mode = 1;
 		irte->lo.fields_vapic.ga_tag = pi_data->ga_tag;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iommu/amd_iommu_v2.c linux-libre-4.9.52-gnu/drivers/iommu/amd_iommu_v2.c
--- linux-libre-4.9-gnu/drivers/iommu/amd_iommu_v2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iommu/amd_iommu_v2.c	2017-09-27 08:40:05.000000000 -0400
@@ -695,9 +695,9 @@ out_clear_state:
 
 out_unregister:
 	mmu_notifier_unregister(&pasid_state->mn, mm);
+	mmput(mm);
 
 out_free:
-	mmput(mm);
 	free_pasid_state(pasid_state);
 
 out:
@@ -805,8 +805,10 @@ int amd_iommu_init_device(struct pci_dev
 		goto out_free_domain;
 
 	group = iommu_group_get(&pdev->dev);
-	if (!group)
+	if (!group) {
+		ret = -EINVAL;
 		goto out_free_domain;
+	}
 
 	ret = iommu_attach_group(dev_state->domain, group);
 	if (ret != 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iommu/dma-iommu.c linux-libre-4.9.52-gnu/drivers/iommu/dma-iommu.c
--- linux-libre-4.9-gnu/drivers/iommu/dma-iommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iommu/dma-iommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -112,8 +112,7 @@ static void iova_reserve_pci_windows(str
 	unsigned long lo, hi;
 
 	resource_list_for_each_entry(window, &bridge->windows) {
-		if (resource_type(window->res) != IORESOURCE_MEM &&
-		    resource_type(window->res) != IORESOURCE_IO)
+		if (resource_type(window->res) != IORESOURCE_MEM)
 			continue;
 
 		lo = iova_pfn(iovad, window->res->start - window->offset);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iommu/intel-iommu.c linux-libre-4.9.52-gnu/drivers/iommu/intel-iommu.c
--- linux-libre-4.9-gnu/drivers/iommu/intel-iommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iommu/intel-iommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -915,7 +915,7 @@ static struct intel_iommu *device_to_iom
 				 * which we used for the IOMMU lookup. Strictly speaking
 				 * we could do this for all PCI devices; we only need to
 				 * get the BDF# from the scope table for ACPI matches. */
-				if (pdev->is_virtfn)
+				if (pdev && pdev->is_virtfn)
 					goto got_pdev;
 
 				*bus = drhd->devices[i].bus;
@@ -1144,7 +1144,7 @@ static void dma_pte_free_level(struct dm
 		if (!dma_pte_present(pte) || dma_pte_superpage(pte))
 			goto next;
 
-		level_pfn = pfn & level_mask(level - 1);
+		level_pfn = pfn & level_mask(level);
 		level_pte = phys_to_virt(dma_pte_addr(pte));
 
 		if (level > 2)
@@ -2037,6 +2037,28 @@ static int domain_context_mapping_one(st
 	if (context_present(context))
 		goto out_unlock;
 
+	/*
+	 * For kdump cases, old valid entries may be cached due to the
+	 * in-flight DMA and copied pgtable, but there is no unmapping
+	 * behaviour for them, thus we need an explicit cache flush for
+	 * the newly-mapped device. For kdump, at this point, the device
+	 * is supposed to finish reset at its driver probe stage, so no
+	 * in-flight DMA will exist, and we don't need to worry anymore
+	 * hereafter.
+	 */
+	if (context_copied(context)) {
+		u16 did_old = context_domain_id(context);
+
+		if (did_old >= 0 && did_old < cap_ndoms(iommu->cap)) {
+			iommu->flush.flush_context(iommu, did_old,
+						   (((u16)bus) << 8) | devfn,
+						   DMA_CCMD_MASK_NOBIT,
+						   DMA_CCMD_DEVICE_INVL);
+			iommu->flush.flush_iotlb(iommu, did_old, 0, 0,
+						 DMA_TLB_DSI_FLUSH);
+		}
+	}
+
 	pgd = domain->pgd;
 
 	context_clear_entry(context);
@@ -3306,13 +3328,14 @@ static int __init init_dmars(void)
 	iommu_identity_mapping |= IDENTMAP_GFX;
 #endif
 
+	check_tylersburg_isoch();
+
 	if (iommu_identity_mapping) {
 		ret = si_domain_init(hw_pass_through);
 		if (ret)
 			goto free_iommu;
 	}
 
-	check_tylersburg_isoch();
 
 	/*
 	 * If we copied translations from a previous kernel in the kdump
@@ -5197,6 +5220,25 @@ static void intel_iommu_remove_device(st
 }
 
 #ifdef CONFIG_INTEL_IOMMU_SVM
+#define MAX_NR_PASID_BITS (20)
+static inline unsigned long intel_iommu_get_pts(struct intel_iommu *iommu)
+{
+	/*
+	 * Convert ecap_pss to extend context entry pts encoding, also
+	 * respect the soft pasid_max value set by the iommu.
+	 * - number of PASID bits = ecap_pss + 1
+	 * - number of PASID table entries = 2^(pts + 5)
+	 * Therefore, pts = ecap_pss - 4
+	 * e.g. KBL ecap_pss = 0x13, PASID has 20 bits, pts = 15
+	 */
+	if (ecap_pss(iommu->ecap) < 5)
+		return 0;
+
+	/* pasid_max is encoded as actual number of entries not the bits */
+	return find_first_bit((unsigned long *)&iommu->pasid_max,
+			MAX_NR_PASID_BITS) - 5;
+}
+
 int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct intel_svm_dev *sdev)
 {
 	struct device_domain_info *info;
@@ -5229,7 +5271,9 @@ int intel_iommu_enable_pasid(struct inte
 
 	if (!(ctx_lo & CONTEXT_PASIDE)) {
 		context[1].hi = (u64)virt_to_phys(iommu->pasid_state_table);
-		context[1].lo = (u64)virt_to_phys(iommu->pasid_table) | ecap_pss(iommu->ecap);
+		context[1].lo = (u64)virt_to_phys(iommu->pasid_table) |
+			intel_iommu_get_pts(iommu);
+
 		wmb();
 		/* CONTEXT_TT_MULTI_LEVEL and CONTEXT_TT_DEV_IOTLB are both
 		 * extended to permit requests-with-PASID if the PASIDE bit
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/iommu/iommu.c linux-libre-4.9.52-gnu/drivers/iommu/iommu.c
--- linux-libre-4.9-gnu/drivers/iommu/iommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/iommu/iommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -383,36 +383,30 @@ int iommu_group_add_device(struct iommu_
 	device->dev = dev;
 
 	ret = sysfs_create_link(&dev->kobj, &group->kobj, "iommu_group");
-	if (ret) {
-		kfree(device);
-		return ret;
-	}
+	if (ret)
+		goto err_free_device;
 
 	device->name = kasprintf(GFP_KERNEL, "%s", kobject_name(&dev->kobj));
 rename:
 	if (!device->name) {
-		sysfs_remove_link(&dev->kobj, "iommu_group");
-		kfree(device);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err_remove_link;
 	}
 
 	ret = sysfs_create_link_nowarn(group->devices_kobj,
 				       &dev->kobj, device->name);
 	if (ret) {
-		kfree(device->name);
 		if (ret == -EEXIST && i >= 0) {
 			/*
 			 * Account for the slim chance of collision
 			 * and append an instance to the name.
 			 */
+			kfree(device->name);
 			device->name = kasprintf(GFP_KERNEL, "%s.%d",
 						 kobject_name(&dev->kobj), i++);
 			goto rename;
 		}
-
-		sysfs_remove_link(&dev->kobj, "iommu_group");
-		kfree(device);
-		return ret;
+		goto err_free_name;
 	}
 
 	kobject_get(group->devices_kobj);
@@ -424,8 +418,10 @@ rename:
 	mutex_lock(&group->mutex);
 	list_add_tail(&device->list, &group->devices);
 	if (group->domain)
-		__iommu_attach_device(group->domain, dev);
+		ret = __iommu_attach_device(group->domain, dev);
 	mutex_unlock(&group->mutex);
+	if (ret)
+		goto err_put_group;
 
 	/* Notify any listeners about change to group. */
 	blocking_notifier_call_chain(&group->notifier,
@@ -436,6 +432,21 @@ rename:
 	pr_info("Adding device %s to group %d\n", dev_name(dev), group->id);
 
 	return 0;
+
+err_put_group:
+	mutex_lock(&group->mutex);
+	list_del(&device->list);
+	mutex_unlock(&group->mutex);
+	dev->iommu_group = NULL;
+	kobject_put(group->devices_kobj);
+err_free_name:
+	kfree(device->name);
+err_remove_link:
+	sysfs_remove_link(&dev->kobj, "iommu_group");
+err_free_device:
+	kfree(device);
+	pr_err("Failed to add device %s to group %d: %d\n", dev_name(dev), group->id, ret);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(iommu_group_add_device);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-atmel-aic-common.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-atmel-aic-common.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-atmel-aic-common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-atmel-aic-common.c	2017-09-27 08:40:05.000000000 -0400
@@ -142,9 +142,9 @@ void __init aic_common_rtc_irq_fixup(str
 	struct device_node *np;
 	void __iomem *regs;
 
-	np = of_find_compatible_node(root, NULL, "atmel,at91rm9200-rtc");
+	np = of_find_compatible_node(NULL, NULL, "atmel,at91rm9200-rtc");
 	if (!np)
-		np = of_find_compatible_node(root, NULL,
+		np = of_find_compatible_node(NULL, NULL,
 					     "atmel,at91sam9x5-rtc");
 
 	if (!np)
@@ -196,7 +196,6 @@ static void __init aic_common_irq_fixup(
 		return;
 
 	match = of_match_node(matches, root);
-	of_node_put(root);
 
 	if (match) {
 		void (*fixup)(struct device_node *) = match->data;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-bcm7038-l1.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-bcm7038-l1.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-bcm7038-l1.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-bcm7038-l1.c	2017-09-27 08:40:05.000000000 -0400
@@ -215,6 +215,31 @@ static int bcm7038_l1_set_affinity(struc
 	return 0;
 }
 
+static void bcm7038_l1_cpu_offline(struct irq_data *d)
+{
+	struct cpumask *mask = irq_data_get_affinity_mask(d);
+	int cpu = smp_processor_id();
+	cpumask_t new_affinity;
+
+	/* This CPU was not on the affinity mask */
+	if (!cpumask_test_cpu(cpu, mask))
+		return;
+
+	if (cpumask_weight(mask) > 1) {
+		/*
+		 * Multiple CPU affinity, remove this CPU from the affinity
+		 * mask
+		 */
+		cpumask_copy(&new_affinity, mask);
+		cpumask_clear_cpu(cpu, &new_affinity);
+	} else {
+		/* Only CPU, put on the lowest online CPU */
+		cpumask_clear(&new_affinity);
+		cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
+	}
+	irq_set_affinity_locked(d, &new_affinity, false);
+}
+
 static int __init bcm7038_l1_init_one(struct device_node *dn,
 				      unsigned int idx,
 				      struct bcm7038_l1_chip *intc)
@@ -266,6 +291,7 @@ static struct irq_chip bcm7038_l1_irq_ch
 	.irq_mask		= bcm7038_l1_mask,
 	.irq_unmask		= bcm7038_l1_unmask,
 	.irq_set_affinity	= bcm7038_l1_set_affinity,
+	.irq_cpu_offline	= bcm7038_l1_cpu_offline,
 };
 
 static int bcm7038_l1_map(struct irq_domain *d, unsigned int virq,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-gic-v3.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-gic-v3.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-gic-v3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-gic-v3.c	2017-09-27 08:40:05.000000000 -0400
@@ -646,6 +646,9 @@ static int gic_set_affinity(struct irq_d
 	int enabled;
 	u64 val;
 
+	if (cpu >= nr_cpu_ids)
+		return -EINVAL;
+
 	if (gic_irq_in_rdist(d))
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-gic-v3-its.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-gic-v3-its.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-gic-v3-its.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-gic-v3-its.c	2017-09-27 08:40:05.000000000 -0400
@@ -1598,6 +1598,14 @@ static void __maybe_unused its_enable_qu
 	its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_23144;
 }
 
+static void __maybe_unused its_enable_quirk_qdf2400_e0065(void *data)
+{
+	struct its_node *its = data;
+
+	/* On QDF2400, the size of the ITE is 16Bytes */
+	its->ite_size = 16;
+}
+
 static const struct gic_quirk its_quirks[] = {
 #ifdef CONFIG_CAVIUM_ERRATUM_22375
 	{
@@ -1615,6 +1623,14 @@ static const struct gic_quirk its_quirks
 		.init	= its_enable_quirk_cavium_23144,
 	},
 #endif
+#ifdef CONFIG_QCOM_QDF2400_ERRATUM_0065
+	{
+		.desc	= "ITS: QDF2400 erratum 0065",
+		.iidr	= 0x00001070, /* QDF2400 ITS rev 1.x */
+		.mask	= 0xffffffff,
+		.init	= its_enable_quirk_qdf2400_e0065,
+	},
+#endif
 	{
 	}
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-imx-gpcv2.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-imx-gpcv2.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-imx-gpcv2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-imx-gpcv2.c	2017-09-27 08:40:05.000000000 -0400
@@ -230,6 +230,8 @@ static int __init imx_gpcv2_irqchip_init
 		return -ENOMEM;
 	}
 
+	raw_spin_lock_init(&cd->rlock);
+
 	cd->gpc_base = of_iomap(node, 0);
 	if (!cd->gpc_base) {
 		pr_err("fsl-gpcv2: unable to map gpc registers\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-keystone.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-keystone.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-keystone.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-keystone.c	2017-09-27 08:40:05.000000000 -0400
@@ -19,9 +19,9 @@
 #include <linux/bitops.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/interrupt.h>
 #include <linux/irqdomain.h>
 #include <linux/irqchip.h>
-#include <linux/irqchip/chained_irq.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/mfd/syscon.h>
@@ -39,6 +39,7 @@ struct keystone_irq_device {
 	struct irq_domain	*irqd;
 	struct regmap		*devctrl_regs;
 	u32			devctrl_offset;
+	raw_spinlock_t		wa_lock;
 };
 
 static inline u32 keystone_irq_readl(struct keystone_irq_device *kirq)
@@ -83,17 +84,15 @@ static void keystone_irq_ack(struct irq_
 	/* nothing to do here */
 }
 
-static void keystone_irq_handler(struct irq_desc *desc)
+static irqreturn_t keystone_irq_handler(int irq, void *keystone_irq)
 {
-	unsigned int irq = irq_desc_get_irq(desc);
-	struct keystone_irq_device *kirq = irq_desc_get_handler_data(desc);
+	struct keystone_irq_device *kirq = keystone_irq;
+	unsigned long wa_lock_flags;
 	unsigned long pending;
 	int src, virq;
 
 	dev_dbg(kirq->dev, "start irq %d\n", irq);
 
-	chained_irq_enter(irq_desc_get_chip(desc), desc);
-
 	pending = keystone_irq_readl(kirq);
 	keystone_irq_writel(kirq, pending);
 
@@ -111,13 +110,15 @@ static void keystone_irq_handler(struct
 			if (!virq)
 				dev_warn(kirq->dev, "spurious irq detected hwirq %d, virq %d\n",
 					 src, virq);
+			raw_spin_lock_irqsave(&kirq->wa_lock, wa_lock_flags);
 			generic_handle_irq(virq);
+			raw_spin_unlock_irqrestore(&kirq->wa_lock,
+						   wa_lock_flags);
 		}
 	}
 
-	chained_irq_exit(irq_desc_get_chip(desc), desc);
-
 	dev_dbg(kirq->dev, "end irq %d\n", irq);
+	return IRQ_HANDLED;
 }
 
 static int keystone_irq_map(struct irq_domain *h, unsigned int virq,
@@ -182,9 +183,16 @@ static int keystone_irq_probe(struct pla
 		return -ENODEV;
 	}
 
+	raw_spin_lock_init(&kirq->wa_lock);
+
 	platform_set_drvdata(pdev, kirq);
 
-	irq_set_chained_handler_and_data(kirq->irq, keystone_irq_handler, kirq);
+	ret = request_irq(kirq->irq, keystone_irq_handler,
+			  0, dev_name(dev), kirq);
+	if (ret) {
+		irq_domain_remove(kirq->irqd);
+		return ret;
+	}
 
 	/* clear all source bits */
 	keystone_irq_writel(kirq, ~0x0);
@@ -199,6 +207,8 @@ static int keystone_irq_remove(struct pl
 	struct keystone_irq_device *kirq = platform_get_drvdata(pdev);
 	int hwirq;
 
+	free_irq(kirq->irq, kirq);
+
 	for (hwirq = 0; hwirq < KEYSTONE_N_IRQ; hwirq++)
 		irq_dispose_mapping(irq_find_mapping(kirq->irqd, hwirq));
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-mips-gic.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-mips-gic.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-mips-gic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-mips-gic.c	2017-09-27 08:40:05.000000000 -0400
@@ -1115,8 +1115,11 @@ static int __init gic_of_init(struct dev
 		gic_len = resource_size(&res);
 	}
 
-	if (mips_cm_present())
+	if (mips_cm_present()) {
 		write_gcr_gic_base(gic_base | CM_GCR_GIC_BASE_GICEN_MSK);
+		/* Ensure GIC region is enabled before trying to access it */
+		__sync();
+	}
 	gic_present = true;
 
 	__gic_init(gic_base, gic_len, cpu_vec, 0, node);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-mxs.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-mxs.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-mxs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-mxs.c	2017-09-27 08:40:05.000000000 -0400
@@ -131,12 +131,16 @@ static struct irq_chip mxs_icoll_chip =
 	.irq_ack = icoll_ack_irq,
 	.irq_mask = icoll_mask_irq,
 	.irq_unmask = icoll_unmask_irq,
+	.flags = IRQCHIP_MASK_ON_SUSPEND |
+		 IRQCHIP_SKIP_SET_WAKE,
 };
 
 static struct irq_chip asm9260_icoll_chip = {
 	.irq_ack = icoll_ack_irq,
 	.irq_mask = asm9260_mask_irq,
 	.irq_unmask = asm9260_unmask_irq,
+	.flags = IRQCHIP_MASK_ON_SUSPEND |
+		 IRQCHIP_SKIP_SET_WAKE,
 };
 
 asmlinkage void __exception_irq_entry icoll_handle_irq(struct pt_regs *regs)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-xtensa-mx.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-xtensa-mx.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-xtensa-mx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-xtensa-mx.c	2017-09-27 08:40:05.000000000 -0400
@@ -142,7 +142,7 @@ static struct irq_chip xtensa_mx_irq_chi
 int __init xtensa_mx_init_legacy(struct device_node *interrupt_parent)
 {
 	struct irq_domain *root_domain =
-		irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
+		irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
 				&xtensa_mx_irq_domain_ops,
 				&xtensa_mx_irq_chip);
 	irq_set_default_host(root_domain);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/irqchip/irq-xtensa-pic.c linux-libre-4.9.52-gnu/drivers/irqchip/irq-xtensa-pic.c
--- linux-libre-4.9-gnu/drivers/irqchip/irq-xtensa-pic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/irqchip/irq-xtensa-pic.c	2017-09-27 08:40:05.000000000 -0400
@@ -89,7 +89,7 @@ static struct irq_chip xtensa_irq_chip =
 int __init xtensa_pic_init_legacy(struct device_node *interrupt_parent)
 {
 	struct irq_domain *root_domain =
-		irq_domain_add_legacy(NULL, NR_IRQS, 0, 0,
+		irq_domain_add_legacy(NULL, NR_IRQS - 1, 1, 0,
 				&xtensa_irq_domain_ops, &xtensa_irq_chip);
 	irq_set_default_host(root_domain);
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/isdn/gigaset/bas-gigaset.c linux-libre-4.9.52-gnu/drivers/isdn/gigaset/bas-gigaset.c
--- linux-libre-4.9-gnu/drivers/isdn/gigaset/bas-gigaset.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/isdn/gigaset/bas-gigaset.c	2017-09-27 08:40:05.000000000 -0400
@@ -2317,6 +2317,9 @@ static int gigaset_probe(struct usb_inte
 		return -ENODEV;
 	}
 
+	if (hostif->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	dev_info(&udev->dev,
 		 "%s: Device matched (Vendor: 0x%x, Product: 0x%x)\n",
 		 __func__, le16_to_cpu(udev->descriptor.idVendor),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/isdn/hardware/eicon/message.c linux-libre-4.9.52-gnu/drivers/isdn/hardware/eicon/message.c
--- linux-libre-4.9-gnu/drivers/isdn/hardware/eicon/message.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/isdn/hardware/eicon/message.c	2017-09-27 08:40:05.000000000 -0400
@@ -11297,7 +11297,8 @@ static void mixer_notify_update(PLCI *pl
 				((CAPI_MSG *) msg)->header.ncci = 0;
 				((CAPI_MSG *) msg)->info.facility_req.Selector = SELECTOR_LINE_INTERCONNECT;
 				((CAPI_MSG *) msg)->info.facility_req.structs[0] = 3;
-				PUT_WORD(&(((CAPI_MSG *) msg)->info.facility_req.structs[1]), LI_REQ_SILENT_UPDATE);
+				((CAPI_MSG *) msg)->info.facility_req.structs[1] = LI_REQ_SILENT_UPDATE & 0xff;
+				((CAPI_MSG *) msg)->info.facility_req.structs[2] = LI_REQ_SILENT_UPDATE >> 8;
 				((CAPI_MSG *) msg)->info.facility_req.structs[3] = 0;
 				w = api_put(notify_plci->appl, (CAPI_MSG *) msg);
 				if (w != _QUEUE_FULL)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/isdn/i4l/isdn_common.c linux-libre-4.9.52-gnu/drivers/isdn/i4l/isdn_common.c
--- linux-libre-4.9-gnu/drivers/isdn/i4l/isdn_common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/isdn/i4l/isdn_common.c	2017-09-27 08:40:05.000000000 -0400
@@ -1379,6 +1379,7 @@ isdn_ioctl(struct file *file, uint cmd,
 			if (arg) {
 				if (copy_from_user(bname, argp, sizeof(bname) - 1))
 					return -EFAULT;
+				bname[sizeof(bname)-1] = 0;
 			} else
 				return -EINVAL;
 			ret = mutex_lock_interruptible(&dev->mtx);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/isdn/i4l/isdn_net.c linux-libre-4.9.52-gnu/drivers/isdn/i4l/isdn_net.c
--- linux-libre-4.9-gnu/drivers/isdn/i4l/isdn_net.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/isdn/i4l/isdn_net.c	2017-09-27 08:40:05.000000000 -0400
@@ -2611,10 +2611,9 @@ isdn_net_newslave(char *parm)
 	char newname[10];
 
 	if (p) {
-		/* Slave-Name MUST not be empty */
-		if (!strlen(p + 1))
+		/* Slave-Name MUST not be empty or overflow 'newname' */
+		if (strscpy(newname, p + 1, sizeof(newname)) <= 0)
 			return NULL;
-		strcpy(newname, p + 1);
 		*p = 0;
 		/* Master must already exist */
 		if (!(n = isdn_net_findif(parm)))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/isdn/i4l/isdn_ppp.c linux-libre-4.9.52-gnu/drivers/isdn/i4l/isdn_ppp.c
--- linux-libre-4.9-gnu/drivers/isdn/i4l/isdn_ppp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/isdn/i4l/isdn_ppp.c	2017-09-27 08:40:05.000000000 -0400
@@ -2364,7 +2364,7 @@ static struct ippp_ccp_reset_state *isdn
 		       id);
 		return NULL;
 	} else {
-		rs = kzalloc(sizeof(struct ippp_ccp_reset_state), GFP_KERNEL);
+		rs = kzalloc(sizeof(struct ippp_ccp_reset_state), GFP_ATOMIC);
 		if (!rs)
 			return NULL;
 		rs->state = CCPResetIdle;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/leds/leds-ktd2692.c linux-libre-4.9.52-gnu/drivers/leds/leds-ktd2692.c
--- linux-libre-4.9-gnu/drivers/leds/leds-ktd2692.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/leds/leds-ktd2692.c	2017-09-27 08:40:05.000000000 -0400
@@ -270,15 +270,15 @@ static int ktd2692_parse_dt(struct ktd26
 		return -ENXIO;
 
 	led->ctrl_gpio = devm_gpiod_get(dev, "ctrl", GPIOD_ASIS);
-	if (IS_ERR(led->ctrl_gpio)) {
-		ret = PTR_ERR(led->ctrl_gpio);
+	ret = PTR_ERR_OR_ZERO(led->ctrl_gpio);
+	if (ret) {
 		dev_err(dev, "cannot get ctrl-gpios %d\n", ret);
 		return ret;
 	}
 
 	led->aux_gpio = devm_gpiod_get(dev, "aux", GPIOD_ASIS);
-	if (IS_ERR(led->aux_gpio)) {
-		ret = PTR_ERR(led->aux_gpio);
+	ret = PTR_ERR_OR_ZERO(led->aux_gpio);
+	if (ret) {
 		dev_err(dev, "cannot get aux-gpios %d\n", ret);
 		return ret;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/leds/trigger/ledtrig-heartbeat.c linux-libre-4.9.52-gnu/drivers/leds/trigger/ledtrig-heartbeat.c
--- linux-libre-4.9-gnu/drivers/leds/trigger/ledtrig-heartbeat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/leds/trigger/ledtrig-heartbeat.c	2017-09-27 08:40:05.000000000 -0400
@@ -19,7 +19,6 @@
 #include <linux/sched.h>
 #include <linux/leds.h>
 #include <linux/reboot.h>
-#include <linux/suspend.h>
 #include "../leds.h"
 
 static int panic_heartbeats;
@@ -155,30 +154,6 @@ static struct led_trigger heartbeat_led_
 	.deactivate = heartbeat_trig_deactivate,
 };
 
-static int heartbeat_pm_notifier(struct notifier_block *nb,
-				 unsigned long pm_event, void *unused)
-{
-	int rc;
-
-	switch (pm_event) {
-	case PM_SUSPEND_PREPARE:
-	case PM_HIBERNATION_PREPARE:
-	case PM_RESTORE_PREPARE:
-		led_trigger_unregister(&heartbeat_led_trigger);
-		break;
-	case PM_POST_SUSPEND:
-	case PM_POST_HIBERNATION:
-	case PM_POST_RESTORE:
-		rc = led_trigger_register(&heartbeat_led_trigger);
-		if (rc)
-			pr_err("could not re-register heartbeat trigger\n");
-		break;
-	default:
-		break;
-	}
-	return NOTIFY_DONE;
-}
-
 static int heartbeat_reboot_notifier(struct notifier_block *nb,
 				     unsigned long code, void *unused)
 {
@@ -193,10 +168,6 @@ static int heartbeat_panic_notifier(stru
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block heartbeat_pm_nb = {
-	.notifier_call = heartbeat_pm_notifier,
-};
-
 static struct notifier_block heartbeat_reboot_nb = {
 	.notifier_call = heartbeat_reboot_notifier,
 };
@@ -213,14 +184,12 @@ static int __init heartbeat_trig_init(vo
 		atomic_notifier_chain_register(&panic_notifier_list,
 					       &heartbeat_panic_nb);
 		register_reboot_notifier(&heartbeat_reboot_nb);
-		register_pm_notifier(&heartbeat_pm_nb);
 	}
 	return rc;
 }
 
 static void __exit heartbeat_trig_exit(void)
 {
-	unregister_pm_notifier(&heartbeat_pm_nb);
 	unregister_reboot_notifier(&heartbeat_reboot_nb);
 	atomic_notifier_chain_unregister(&panic_notifier_list,
 					 &heartbeat_panic_nb);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mailbox/mailbox.c linux-libre-4.9.52-gnu/drivers/mailbox/mailbox.c
--- linux-libre-4.9-gnu/drivers/mailbox/mailbox.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mailbox/mailbox.c	2017-09-27 08:40:05.000000000 -0400
@@ -104,11 +104,14 @@ static void tx_tick(struct mbox_chan *ch
 	/* Submit next message */
 	msg_submit(chan);
 
+	if (!mssg)
+		return;
+
 	/* Notify the client */
-	if (mssg && chan->cl->tx_done)
+	if (chan->cl->tx_done)
 		chan->cl->tx_done(chan->cl, mssg, r);
 
-	if (chan->cl->tx_block)
+	if (r != -ETIME && chan->cl->tx_block)
 		complete(&chan->tx_complete);
 }
 
@@ -261,7 +264,7 @@ int mbox_send_message(struct mbox_chan *
 
 	msg_submit(chan);
 
-	if (chan->cl->tx_block && chan->active_req) {
+	if (chan->cl->tx_block) {
 		unsigned long wait;
 		int ret;
 
@@ -272,8 +275,8 @@ int mbox_send_message(struct mbox_chan *
 
 		ret = wait_for_completion_timeout(&chan->tx_complete, wait);
 		if (ret == 0) {
-			t = -EIO;
-			tx_tick(chan, -EIO);
+			t = -ETIME;
+			tx_tick(chan, t);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/Makefile linux-libre-4.9.52-gnu/drivers/Makefile
--- linux-libre-4.9-gnu/drivers/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -101,6 +101,7 @@ obj-$(CONFIG_USB_PHY)		+= usb/
 obj-$(CONFIG_USB)		+= usb/
 obj-$(CONFIG_PCI)		+= usb/
 obj-$(CONFIG_USB_GADGET)	+= usb/
+obj-$(CONFIG_OF)		+= usb/
 obj-$(CONFIG_SERIO)		+= input/serio/
 obj-$(CONFIG_GAMEPORT)		+= input/gameport/
 obj-$(CONFIG_INPUT)		+= input/
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mcb/mcb-lpc.c linux-libre-4.9.52-gnu/drivers/mcb/mcb-lpc.c
--- linux-libre-4.9-gnu/drivers/mcb/mcb-lpc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mcb/mcb-lpc.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,6 +114,12 @@ static struct resource sc24_fpga_resourc
 	.flags = IORESOURCE_MEM,
 };
 
+static struct resource sc31_fpga_resource = {
+	.start = 0xf000e000,
+	.end = 0xf000e000 + CHAM_HEADER_SIZE,
+	.flags = IORESOURCE_MEM,
+};
+
 static struct platform_driver mcb_lpc_driver = {
 	.driver		= {
 		.name = "mcb-lpc",
@@ -132,6 +138,15 @@ static const struct dmi_system_id mcb_lp
 		.driver_data = (void *)&sc24_fpga_resource,
 		.callback = mcb_lpc_create_platform_device,
 	},
+	{
+		.ident = "SC31",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "MEN"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "14SC31"),
+		},
+		.driver_data = (void *)&sc31_fpga_resource,
+		.callback = mcb_lpc_create_platform_device,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(dmi, mcb_lpc_dmi_table);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/bcache.h linux-libre-4.9.52-gnu/drivers/md/bcache/bcache.h
--- linux-libre-4.9-gnu/drivers/md/bcache/bcache.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/bcache.h	2017-09-27 08:40:05.000000000 -0400
@@ -333,6 +333,7 @@ struct cached_dev {
 	/* Limit number of writeback bios in flight */
 	struct semaphore	in_flight;
 	struct task_struct	*writeback_thread;
+	struct workqueue_struct	*writeback_write_wq;
 
 	struct keybuf		writeback_keys;
 
@@ -425,7 +426,7 @@ struct cache {
 	 * until a gc finishes - otherwise we could pointlessly burn a ton of
 	 * cpu
 	 */
-	unsigned		invalidate_needs_gc:1;
+	unsigned		invalidate_needs_gc;
 
 	bool			discard; /* Get rid of? */
 
@@ -593,8 +594,8 @@ struct cache_set {
 
 	/* Counts how many sectors bio_insert has added to the cache */
 	atomic_t		sectors_to_gc;
+	wait_queue_head_t	gc_wait;
 
-	wait_queue_head_t	moving_gc_wait;
 	struct keybuf		moving_gc_keys;
 	/* Number of moving GC bios in flight */
 	struct semaphore	moving_in_flight;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/btree.c linux-libre-4.9.52-gnu/drivers/md/bcache/btree.c
--- linux-libre-4.9-gnu/drivers/md/bcache/btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -1757,32 +1757,34 @@ static void bch_btree_gc(struct cache_se
 	bch_moving_gc(c);
 }
 
-static int bch_gc_thread(void *arg)
+static bool gc_should_run(struct cache_set *c)
 {
-	struct cache_set *c = arg;
 	struct cache *ca;
 	unsigned i;
 
-	while (1) {
-again:
-		bch_btree_gc(c);
+	for_each_cache(ca, c, i)
+		if (ca->invalidate_needs_gc)
+			return true;
 
-		set_current_state(TASK_INTERRUPTIBLE);
-		if (kthread_should_stop())
-			break;
+	if (atomic_read(&c->sectors_to_gc) < 0)
+		return true;
 
-		mutex_lock(&c->bucket_lock);
+	return false;
+}
 
-		for_each_cache(ca, c, i)
-			if (ca->invalidate_needs_gc) {
-				mutex_unlock(&c->bucket_lock);
-				set_current_state(TASK_RUNNING);
-				goto again;
-			}
+static int bch_gc_thread(void *arg)
+{
+	struct cache_set *c = arg;
 
-		mutex_unlock(&c->bucket_lock);
+	while (1) {
+		wait_event_interruptible(c->gc_wait,
+			   kthread_should_stop() || gc_should_run(c));
 
-		schedule();
+		if (kthread_should_stop())
+			break;
+
+		set_gc_sectors(c);
+		bch_btree_gc(c);
 	}
 
 	return 0;
@@ -1790,11 +1792,10 @@ again:
 
 int bch_gc_thread_start(struct cache_set *c)
 {
-	c->gc_thread = kthread_create(bch_gc_thread, c, "bcache_gc");
+	c->gc_thread = kthread_run(bch_gc_thread, c, "bcache_gc");
 	if (IS_ERR(c->gc_thread))
 		return PTR_ERR(c->gc_thread);
 
-	set_task_state(c->gc_thread, TASK_INTERRUPTIBLE);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/btree.h linux-libre-4.9.52-gnu/drivers/md/bcache/btree.h
--- linux-libre-4.9-gnu/drivers/md/bcache/btree.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/btree.h	2017-09-27 08:40:05.000000000 -0400
@@ -260,8 +260,7 @@ void bch_initial_mark_key(struct cache_s
 
 static inline void wake_up_gc(struct cache_set *c)
 {
-	if (c->gc_thread)
-		wake_up_process(c->gc_thread);
+	wake_up(&c->gc_wait);
 }
 
 #define MAP_DONE	0
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/request.c linux-libre-4.9.52-gnu/drivers/md/bcache/request.c
--- linux-libre-4.9-gnu/drivers/md/bcache/request.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/request.c	2017-09-27 08:40:05.000000000 -0400
@@ -196,14 +196,12 @@ static void bch_data_insert_start(struct
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 	struct bio *bio = op->bio, *n;
 
-	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
-		set_gc_sectors(op->c);
-		wake_up_gc(op->c);
-	}
-
 	if (op->bypass)
 		return bch_data_invalidate(cl);
 
+	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0)
+		wake_up_gc(op->c);
+
 	/*
 	 * Journal writes are marked REQ_PREFLUSH; if the original write was a
 	 * flush, it'll wait on the journal write.
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/super.c linux-libre-4.9.52-gnu/drivers/md/bcache/super.c
--- linux-libre-4.9-gnu/drivers/md/bcache/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -1025,7 +1025,7 @@ int bch_cached_dev_attach(struct cached_
 	}
 
 	if (BDEV_STATE(&dc->sb) == BDEV_STATE_DIRTY) {
-		bch_sectors_dirty_init(dc);
+		bch_sectors_dirty_init(&dc->disk);
 		atomic_set(&dc->has_dirty, 1);
 		atomic_inc(&dc->count);
 		bch_writeback_queue(dc);
@@ -1058,6 +1058,8 @@ static void cached_dev_free(struct closu
 	cancel_delayed_work_sync(&dc->writeback_rate_update);
 	if (!IS_ERR_OR_NULL(dc->writeback_thread))
 		kthread_stop(dc->writeback_thread);
+	if (dc->writeback_write_wq)
+		destroy_workqueue(dc->writeback_write_wq);
 
 	mutex_lock(&bch_register_lock);
 
@@ -1229,6 +1231,7 @@ static int flash_dev_run(struct cache_se
 		goto err;
 
 	bcache_device_attach(d, c, u - c->uuids);
+	bch_sectors_dirty_init(d);
 	bch_flash_dev_request_init(d);
 	add_disk(d->disk);
 
@@ -1491,6 +1494,7 @@ struct cache_set *bch_cache_set_alloc(st
 	mutex_init(&c->bucket_lock);
 	init_waitqueue_head(&c->btree_cache_wait);
 	init_waitqueue_head(&c->bucket_wait);
+	init_waitqueue_head(&c->gc_wait);
 	sema_init(&c->uuid_write_mutex, 1);
 
 	spin_lock_init(&c->btree_gc_time.lock);
@@ -1550,6 +1554,7 @@ static void run_cache_set(struct cache_s
 
 	for_each_cache(ca, c, i)
 		c->nbuckets += ca->sb.nbuckets;
+	set_gc_sectors(c);
 
 	if (CACHE_SYNC(&c->sb)) {
 		LIST_HEAD(journal);
@@ -1965,6 +1970,8 @@ static ssize_t register_bcache(struct ko
 			else
 				err = "device busy";
 			mutex_unlock(&bch_register_lock);
+			if (!IS_ERR(bdev))
+				bdput(bdev);
 			if (attr == &ksysfs_register_quiet)
 				goto out;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/sysfs.c linux-libre-4.9.52-gnu/drivers/md/bcache/sysfs.c
--- linux-libre-4.9-gnu/drivers/md/bcache/sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -191,7 +191,7 @@ STORE(__cached_dev)
 {
 	struct cached_dev *dc = container_of(kobj, struct cached_dev,
 					     disk.kobj);
-	unsigned v = size;
+	ssize_t v = size;
 	struct cache_set *c;
 	struct kobj_uevent_env *env;
 
@@ -226,7 +226,7 @@ STORE(__cached_dev)
 		bch_cached_dev_run(dc);
 
 	if (attr == &sysfs_cache_mode) {
-		ssize_t v = bch_read_string_list(buf, bch_cache_modes + 1);
+		v = bch_read_string_list(buf, bch_cache_modes + 1);
 
 		if (v < 0)
 			return v;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/util.c linux-libre-4.9.52-gnu/drivers/md/bcache/util.c
--- linux-libre-4.9-gnu/drivers/md/bcache/util.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/util.c	2017-09-27 08:40:05.000000000 -0400
@@ -73,24 +73,44 @@ STRTO_H(strtouint, unsigned int)
 STRTO_H(strtoll, long long)
 STRTO_H(strtoull, unsigned long long)
 
+/**
+ * bch_hprint() - formats @v to human readable string for sysfs.
+ *
+ * @v - signed 64 bit integer
+ * @buf - the (at least 8 byte) buffer to format the result into.
+ *
+ * Returns the number of bytes used by format.
+ */
 ssize_t bch_hprint(char *buf, int64_t v)
 {
 	static const char units[] = "?kMGTPEZY";
-	char dec[4] = "";
-	int u, t = 0;
+	int u = 0, t;
 
-	for (u = 0; v >= 1024 || v <= -1024; u++) {
-		t = v & ~(~0 << 10);
-		v >>= 10;
-	}
+	uint64_t q;
 
-	if (!u)
-		return sprintf(buf, "%llu", v);
+	if (v < 0)
+		q = -v;
+	else
+		q = v;
 
-	if (v < 100 && v > -100)
-		snprintf(dec, sizeof(dec), ".%i", t / 100);
+	/* For as long as the number is more than 3 digits, but at least
+	 * once, shift right / divide by 1024.  Keep the remainder for
+	 * a digit after the decimal point.
+	 */
+	do {
+		u++;
 
-	return sprintf(buf, "%lli%s%c", v, dec, units[u]);
+		t = q & ~(~0 << 10);
+		q >>= 10;
+	} while (q >= 1000);
+
+	if (v < 0)
+		/* '-', up to 3 digits, '.', 1 digit, 1 character, null;
+		 * yields 8 bytes.
+		 */
+		return sprintf(buf, "-%llu.%i%c", q, t * 10 / 1024, units[u]);
+	else
+		return sprintf(buf, "%llu.%i%c", q, t * 10 / 1024, units[u]);
 }
 
 ssize_t bch_snprint_string_list(char *buf, size_t size, const char * const list[],
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/writeback.c linux-libre-4.9.52-gnu/drivers/md/bcache/writeback.c
--- linux-libre-4.9-gnu/drivers/md/bcache/writeback.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/writeback.c	2017-09-27 08:40:05.000000000 -0400
@@ -20,7 +20,8 @@
 static void __update_writeback_rate(struct cached_dev *dc)
 {
 	struct cache_set *c = dc->disk.c;
-	uint64_t cache_sectors = c->nbuckets * c->sb.bucket_size;
+	uint64_t cache_sectors = c->nbuckets * c->sb.bucket_size -
+				bcache_flash_devs_sectors_dirty(c);
 	uint64_t cache_dirty_target =
 		div_u64(cache_sectors * dc->writeback_percent, 100);
 
@@ -186,7 +187,7 @@ static void write_dirty(struct closure *
 
 	closure_bio_submit(&io->bio, cl);
 
-	continue_at(cl, write_dirty_finish, system_wq);
+	continue_at(cl, write_dirty_finish, io->dc->writeback_write_wq);
 }
 
 static void read_dirty_endio(struct bio *bio)
@@ -206,7 +207,7 @@ static void read_dirty_submit(struct clo
 
 	closure_bio_submit(&io->bio, cl);
 
-	continue_at(cl, write_dirty, system_wq);
+	continue_at(cl, write_dirty, io->dc->writeback_write_wq);
 }
 
 static void read_dirty(struct cached_dev *dc)
@@ -482,17 +483,17 @@ static int sectors_dirty_init_fn(struct
 	return MAP_CONTINUE;
 }
 
-void bch_sectors_dirty_init(struct cached_dev *dc)
+void bch_sectors_dirty_init(struct bcache_device *d)
 {
 	struct sectors_dirty_init op;
 
 	bch_btree_op_init(&op.op, -1);
-	op.inode = dc->disk.id;
+	op.inode = d->id;
 
-	bch_btree_map_keys(&op.op, dc->disk.c, &KEY(op.inode, 0, 0),
+	bch_btree_map_keys(&op.op, d->c, &KEY(op.inode, 0, 0),
 			   sectors_dirty_init_fn, 0);
 
-	dc->disk.sectors_dirty_last = bcache_dev_sectors_dirty(&dc->disk);
+	d->sectors_dirty_last = bcache_dev_sectors_dirty(d);
 }
 
 void bch_cached_dev_writeback_init(struct cached_dev *dc)
@@ -516,6 +517,11 @@ void bch_cached_dev_writeback_init(struc
 
 int bch_cached_dev_writeback_start(struct cached_dev *dc)
 {
+	dc->writeback_write_wq = alloc_workqueue("bcache_writeback_wq",
+						WQ_MEM_RECLAIM, 0);
+	if (!dc->writeback_write_wq)
+		return -ENOMEM;
+
 	dc->writeback_thread = kthread_create(bch_writeback_thread, dc,
 					      "bcache_writeback");
 	if (IS_ERR(dc->writeback_thread))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bcache/writeback.h linux-libre-4.9.52-gnu/drivers/md/bcache/writeback.h
--- linux-libre-4.9-gnu/drivers/md/bcache/writeback.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bcache/writeback.h	2017-09-27 08:40:05.000000000 -0400
@@ -14,6 +14,25 @@ static inline uint64_t bcache_dev_sector
 	return ret;
 }
 
+static inline uint64_t  bcache_flash_devs_sectors_dirty(struct cache_set *c)
+{
+	uint64_t i, ret = 0;
+
+	mutex_lock(&bch_register_lock);
+
+	for (i = 0; i < c->nr_uuids; i++) {
+		struct bcache_device *d = c->devices[i];
+
+		if (!d || !UUID_FLASH_ONLY(&c->uuids[i]))
+			continue;
+	   ret += bcache_dev_sectors_dirty(d);
+	}
+
+	mutex_unlock(&bch_register_lock);
+
+	return ret;
+}
+
 static inline unsigned offset_to_stripe(struct bcache_device *d,
 					uint64_t offset)
 {
@@ -85,7 +104,7 @@ static inline void bch_writeback_add(str
 
 void bcache_dev_sectors_dirty_add(struct cache_set *, unsigned, uint64_t, int);
 
-void bch_sectors_dirty_init(struct cached_dev *dc);
+void bch_sectors_dirty_init(struct bcache_device *);
 void bch_cached_dev_writeback_init(struct cached_dev *);
 int bch_cached_dev_writeback_start(struct cached_dev *);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/bitmap.c linux-libre-4.9.52-gnu/drivers/md/bitmap.c
--- linux-libre-4.9-gnu/drivers/md/bitmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/bitmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -1992,6 +1992,11 @@ int bitmap_resize(struct bitmap *bitmap,
 	long pages;
 	struct bitmap_page *new_bp;
 
+	if (bitmap->storage.file && !init) {
+		pr_info("md: cannot resize file-based bitmap\n");
+		return -EINVAL;
+	}
+
 	if (chunksize == 0) {
 		/* If there is enough space, leave the chunk size unchanged,
 		 * else increase by factor of two until there is enough space.
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-bufio.c linux-libre-4.9.52-gnu/drivers/md/dm-bufio.c
--- linux-libre-4.9-gnu/drivers/md/dm-bufio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-bufio.c	2017-09-27 08:40:05.000000000 -0400
@@ -215,7 +215,7 @@ static DEFINE_SPINLOCK(param_spinlock);
  * Buffers are freed after this timeout
  */
 static unsigned dm_bufio_max_age = DM_BUFIO_DEFAULT_AGE_SECS;
-static unsigned dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
+static unsigned long dm_bufio_retain_bytes = DM_BUFIO_DEFAULT_RETAIN_BYTES;
 
 static unsigned long dm_bufio_peak_allocated;
 static unsigned long dm_bufio_allocated_kmem_cache;
@@ -923,10 +923,11 @@ static void __get_memory_limit(struct dm
 {
 	unsigned long buffers;
 
-	if (ACCESS_ONCE(dm_bufio_cache_size) != dm_bufio_cache_size_latch) {
-		mutex_lock(&dm_bufio_clients_lock);
-		__cache_size_refresh();
-		mutex_unlock(&dm_bufio_clients_lock);
+	if (unlikely(ACCESS_ONCE(dm_bufio_cache_size) != dm_bufio_cache_size_latch)) {
+		if (mutex_trylock(&dm_bufio_clients_lock)) {
+			__cache_size_refresh();
+			mutex_unlock(&dm_bufio_clients_lock);
+		}
 	}
 
 	buffers = dm_bufio_cache_size_per_client >>
@@ -1540,10 +1541,10 @@ static bool __try_evict_buffer(struct dm
 	return true;
 }
 
-static unsigned get_retain_buffers(struct dm_bufio_client *c)
+static unsigned long get_retain_buffers(struct dm_bufio_client *c)
 {
-        unsigned retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
-        return retain_bytes / c->block_size;
+        unsigned long retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
+        return retain_bytes >> (c->sectors_per_block_bits + SECTOR_SHIFT);
 }
 
 static unsigned long __scan(struct dm_bufio_client *c, unsigned long nr_to_scan,
@@ -1553,7 +1554,7 @@ static unsigned long __scan(struct dm_bu
 	struct dm_buffer *b, *tmp;
 	unsigned long freed = 0;
 	unsigned long count = nr_to_scan;
-	unsigned retain_target = get_retain_buffers(c);
+	unsigned long retain_target = get_retain_buffers(c);
 
 	for (l = 0; l < LIST_SIZE; l++) {
 		list_for_each_entry_safe_reverse(b, tmp, &c->lru[l], lru_list) {
@@ -1779,11 +1780,19 @@ static bool older_than(struct dm_buffer
 static void __evict_old_buffers(struct dm_bufio_client *c, unsigned long age_hz)
 {
 	struct dm_buffer *b, *tmp;
-	unsigned retain_target = get_retain_buffers(c);
-	unsigned count;
+	unsigned long retain_target = get_retain_buffers(c);
+	unsigned long count;
+	LIST_HEAD(write_list);
 
 	dm_bufio_lock(c);
 
+	__check_watermark(c, &write_list);
+	if (unlikely(!list_empty(&write_list))) {
+		dm_bufio_unlock(c);
+		__flush_write_list(&write_list);
+		dm_bufio_lock(c);
+	}
+
 	count = c->n_buffers[LIST_CLEAN] + c->n_buffers[LIST_DIRTY];
 	list_for_each_entry_safe_reverse(b, tmp, &c->lru[LIST_CLEAN], lru_list) {
 		if (count <= retain_target)
@@ -1808,6 +1817,8 @@ static void cleanup_old_buffers(void)
 
 	mutex_lock(&dm_bufio_clients_lock);
 
+	__cache_size_refresh();
+
 	list_for_each_entry(c, &dm_bufio_all_clients, client_list)
 		__evict_old_buffers(c, max_age_hz);
 
@@ -1930,7 +1941,7 @@ MODULE_PARM_DESC(max_cache_size_bytes, "
 module_param_named(max_age_seconds, dm_bufio_max_age, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(max_age_seconds, "Max age of a buffer in seconds");
 
-module_param_named(retain_bytes, dm_bufio_retain_bytes, uint, S_IRUGO | S_IWUSR);
+module_param_named(retain_bytes, dm_bufio_retain_bytes, ulong, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(retain_bytes, "Try to keep at least this many bytes cached in memory");
 
 module_param_named(peak_allocated_bytes, dm_bufio_peak_allocated, ulong, S_IRUGO | S_IWUSR);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm.c linux-libre-4.9.52-gnu/drivers/md/dm.c
--- linux-libre-4.9-gnu/drivers/md/dm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm.c	2017-09-27 08:40:05.000000000 -0400
@@ -972,10 +972,64 @@ void dm_accept_partial_bio(struct bio *b
 }
 EXPORT_SYMBOL_GPL(dm_accept_partial_bio);
 
+/*
+ * Flush current->bio_list when the target map method blocks.
+ * This fixes deadlocks in snapshot and possibly in other targets.
+ */
+struct dm_offload {
+	struct blk_plug plug;
+	struct blk_plug_cb cb;
+};
+
+static void flush_current_bio_list(struct blk_plug_cb *cb, bool from_schedule)
+{
+	struct dm_offload *o = container_of(cb, struct dm_offload, cb);
+	struct bio_list list;
+	struct bio *bio;
+	int i;
+
+	INIT_LIST_HEAD(&o->cb.list);
+
+	if (unlikely(!current->bio_list))
+		return;
+
+	for (i = 0; i < 2; i++) {
+		list = current->bio_list[i];
+		bio_list_init(&current->bio_list[i]);
+
+		while ((bio = bio_list_pop(&list))) {
+			struct bio_set *bs = bio->bi_pool;
+			if (unlikely(!bs) || bs == fs_bio_set) {
+				bio_list_add(&current->bio_list[i], bio);
+				continue;
+			}
+
+			spin_lock(&bs->rescue_lock);
+			bio_list_add(&bs->rescue_list, bio);
+			queue_work(bs->rescue_workqueue, &bs->rescue_work);
+			spin_unlock(&bs->rescue_lock);
+		}
+	}
+}
+
+static void dm_offload_start(struct dm_offload *o)
+{
+	blk_start_plug(&o->plug);
+	o->cb.callback = flush_current_bio_list;
+	list_add(&o->cb.list, &current->plug->cb_list);
+}
+
+static void dm_offload_end(struct dm_offload *o)
+{
+	list_del(&o->cb.list);
+	blk_finish_plug(&o->plug);
+}
+
 static void __map_bio(struct dm_target_io *tio)
 {
 	int r;
 	sector_t sector;
+	struct dm_offload o;
 	struct bio *clone = &tio->clone;
 	struct dm_target *ti = tio->ti;
 
@@ -988,7 +1042,11 @@ static void __map_bio(struct dm_target_i
 	 */
 	atomic_inc(&tio->io->io_count);
 	sector = clone->bi_iter.bi_sector;
+
+	dm_offload_start(&o);
 	r = ti->type->map(ti, clone);
+	dm_offload_end(&o);
+
 	if (r == DM_MAPIO_REMAPPED) {
 		/* the bio has been remapped so dispatch it */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-cache-metadata.c linux-libre-4.9.52-gnu/drivers/md/dm-cache-metadata.c
--- linux-libre-4.9-gnu/drivers/md/dm-cache-metadata.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-cache-metadata.c	2017-09-27 08:40:05.000000000 -0400
@@ -1383,17 +1383,19 @@ void dm_cache_metadata_set_stats(struct
 
 int dm_cache_commit(struct dm_cache_metadata *cmd, bool clean_shutdown)
 {
-	int r;
+	int r = -EINVAL;
 	flags_mutator mutator = (clean_shutdown ? set_clean_shutdown :
 				 clear_clean_shutdown);
 
 	WRITE_LOCK(cmd);
+	if (cmd->fail_io)
+		goto out;
+
 	r = __commit_transaction(cmd, mutator);
 	if (r)
 		goto out;
 
 	r = __begin_transaction(cmd);
-
 out:
 	WRITE_UNLOCK(cmd);
 	return r;
@@ -1405,7 +1407,8 @@ int dm_cache_get_free_metadata_block_cou
 	int r = -EINVAL;
 
 	READ_LOCK(cmd);
-	r = dm_sm_get_nr_free(cmd->metadata_sm, result);
+	if (!cmd->fail_io)
+		r = dm_sm_get_nr_free(cmd->metadata_sm, result);
 	READ_UNLOCK(cmd);
 
 	return r;
@@ -1417,7 +1420,8 @@ int dm_cache_get_metadata_dev_size(struc
 	int r = -EINVAL;
 
 	READ_LOCK(cmd);
-	r = dm_sm_get_nr_blocks(cmd->metadata_sm, result);
+	if (!cmd->fail_io)
+		r = dm_sm_get_nr_blocks(cmd->metadata_sm, result);
 	READ_UNLOCK(cmd);
 
 	return r;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-cache-target.c linux-libre-4.9.52-gnu/drivers/md/dm-cache-target.c
--- linux-libre-4.9-gnu/drivers/md/dm-cache-target.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-cache-target.c	2017-09-27 08:40:05.000000000 -0400
@@ -248,7 +248,7 @@ struct cache {
 	/*
 	 * Fields for converting from sectors to blocks.
 	 */
-	uint32_t sectors_per_block;
+	sector_t sectors_per_block;
 	int sectors_per_block_shift;
 
 	spinlock_t lock;
@@ -3546,11 +3546,11 @@ static void cache_status(struct dm_targe
 
 		residency = policy_residency(cache->policy);
 
-		DMEMIT("%u %llu/%llu %u %llu/%llu %u %u %u %u %u %u %lu ",
+		DMEMIT("%u %llu/%llu %llu %llu/%llu %u %u %u %u %u %u %lu ",
 		       (unsigned)DM_CACHE_METADATA_BLOCK_SIZE,
 		       (unsigned long long)(nr_blocks_metadata - nr_free_blocks_metadata),
 		       (unsigned long long)nr_blocks_metadata,
-		       cache->sectors_per_block,
+		       (unsigned long long)cache->sectors_per_block,
 		       (unsigned long long) from_cblock(residency),
 		       (unsigned long long) from_cblock(cache->cache_size),
 		       (unsigned) atomic_read(&cache->stats.read_hit),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-crypt.c linux-libre-4.9.52-gnu/drivers/md/dm-crypt.c
--- linux-libre-4.9-gnu/drivers/md/dm-crypt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-crypt.c	2017-09-27 08:40:05.000000000 -0400
@@ -1503,12 +1503,15 @@ static int crypt_set_key(struct crypt_co
 	if (!cc->key_size && strcmp(key, "-"))
 		goto out;
 
+	/* clear the flag since following operations may invalidate previously valid key */
+	clear_bit(DM_CRYPT_KEY_VALID, &cc->flags);
+
 	if (cc->key_size && crypt_decode_key(cc->key, key, cc->key_size) < 0)
 		goto out;
 
-	set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
-
 	r = crypt_setkey_allcpus(cc);
+	if (!r)
+		set_bit(DM_CRYPT_KEY_VALID, &cc->flags);
 
 out:
 	/* Hex key string not needed after here, so wipe it. */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-era-target.c linux-libre-4.9.52-gnu/drivers/md/dm-era-target.c
--- linux-libre-4.9-gnu/drivers/md/dm-era-target.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-era-target.c	2017-09-27 08:40:05.000000000 -0400
@@ -961,15 +961,15 @@ static int metadata_commit(struct era_me
 		}
 	}
 
-	r = save_sm_root(md);
+	r = dm_tm_pre_commit(md->tm);
 	if (r) {
-		DMERR("%s: save_sm_root failed", __func__);
+		DMERR("%s: pre commit failed", __func__);
 		return r;
 	}
 
-	r = dm_tm_pre_commit(md->tm);
+	r = save_sm_root(md);
 	if (r) {
-		DMERR("%s: pre commit failed", __func__);
+		DMERR("%s: save_sm_root failed", __func__);
 		return r;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-flakey.c linux-libre-4.9.52-gnu/drivers/md/dm-flakey.c
--- linux-libre-4.9-gnu/drivers/md/dm-flakey.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-flakey.c	2017-09-27 08:40:05.000000000 -0400
@@ -200,11 +200,13 @@ static int flakey_ctr(struct dm_target *
 
 	if (!(fc->up_interval + fc->down_interval)) {
 		ti->error = "Total (up + down) interval is zero";
+		r = -EINVAL;
 		goto bad;
 	}
 
 	if (fc->up_interval + fc->down_interval < fc->up_interval) {
 		ti->error = "Interval overflow";
+		r = -EINVAL;
 		goto bad;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-ioctl.c linux-libre-4.9.52-gnu/drivers/md/dm-ioctl.c
--- linux-libre-4.9-gnu/drivers/md/dm-ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -1847,7 +1847,7 @@ static int ctl_ioctl(uint command, struc
 	if (r)
 		goto out;
 
-	param->data_size = sizeof(*param);
+	param->data_size = offsetof(struct dm_ioctl, data);
 	r = fn(param, input_param_size);
 
 	if (unlikely(param->flags & DM_BUFFER_FULL_FLAG) &&
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-mpath.c linux-libre-4.9.52-gnu/drivers/md/dm-mpath.c
--- linux-libre-4.9-gnu/drivers/md/dm-mpath.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-mpath.c	2017-09-27 08:40:05.000000000 -0400
@@ -119,7 +119,8 @@ static struct kmem_cache *_mpio_cache;
 
 static struct workqueue_struct *kmultipathd, *kmpath_handlerd;
 static void trigger_event(struct work_struct *work);
-static void activate_path(struct work_struct *work);
+static void activate_or_offline_path(struct pgpath *pgpath);
+static void activate_path_work(struct work_struct *work);
 static void process_queued_bios(struct work_struct *work);
 
 /*-----------------------------------------------
@@ -144,7 +145,7 @@ static struct pgpath *alloc_pgpath(void)
 
 	if (pgpath) {
 		pgpath->is_active = true;
-		INIT_DELAYED_WORK(&pgpath->activate_path, activate_path);
+		INIT_DELAYED_WORK(&pgpath->activate_path, activate_path_work);
 	}
 
 	return pgpath;
@@ -430,7 +431,7 @@ static struct pgpath *choose_pgpath(stru
 	unsigned long flags;
 	struct priority_group *pg;
 	struct pgpath *pgpath;
-	bool bypassed = true;
+	unsigned bypassed = 1;
 
 	if (!atomic_read(&m->nr_valid_paths)) {
 		clear_bit(MPATHF_QUEUE_IO, &m->flags);
@@ -469,7 +470,7 @@ check_current_pg:
 	 */
 	do {
 		list_for_each_entry(pg, &m->priority_groups, list) {
-			if (pg->bypassed == bypassed)
+			if (pg->bypassed == !!bypassed)
 				continue;
 			pgpath = choose_path_in_pg(m, pg, nr_bytes);
 			if (!IS_ERR_OR_NULL(pgpath)) {
@@ -1515,10 +1516,8 @@ out:
 	spin_unlock_irqrestore(&m->lock, flags);
 }
 
-static void activate_path(struct work_struct *work)
+static void activate_or_offline_path(struct pgpath *pgpath)
 {
-	struct pgpath *pgpath =
-		container_of(work, struct pgpath, activate_path.work);
 	struct request_queue *q = bdev_get_queue(pgpath->path.dev->bdev);
 
 	if (pgpath->is_active && !blk_queue_dying(q))
@@ -1527,6 +1526,14 @@ static void activate_path(struct work_st
 		pg_init_done(pgpath, SCSI_DH_DEV_OFFLINED);
 }
 
+static void activate_path_work(struct work_struct *work)
+{
+	struct pgpath *pgpath =
+		container_of(work, struct pgpath, activate_path.work);
+
+	activate_or_offline_path(pgpath);
+}
+
 static int noretry_error(int error)
 {
 	switch (error) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-raid.c linux-libre-4.9.52-gnu/drivers/md/dm-raid.c
--- linux-libre-4.9-gnu/drivers/md/dm-raid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-raid.c	2017-09-27 08:40:05.000000000 -0400
@@ -2994,6 +2994,9 @@ static int raid_ctr(struct dm_target *ti
 		}
 	}
 
+	/* Disable/enable discard support on raid set. */
+	configure_discard_support(rs);
+
 	mddev_unlock(&rs->md);
 	return 0;
 
@@ -3580,19 +3583,13 @@ static int raid_preresume(struct dm_targ
 	if (test_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags))
 		rs_update_sbs(rs);
 
-	/*
-	 * Disable/enable discard support on raid set after any
-	 * conversion, because devices can have been added
-	 */
-	configure_discard_support(rs);
-
 	/* Load the bitmap from disk unless raid0 */
 	r = __load_dirty_region_bitmap(rs);
 	if (r)
 		return r;
 
 	/* Resize bitmap to adjust to changed region size (aka MD bitmap chunksize) */
-	if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) &&
+	if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && mddev->bitmap &&
 	    mddev->bitmap_info.chunksize != to_bytes(rs->requested_bitmap_chunk_sectors)) {
 		r = bitmap_resize(mddev->bitmap, mddev->dev_sectors,
 				  to_bytes(rs->requested_bitmap_chunk_sectors), 0);
@@ -3624,6 +3621,8 @@ static int raid_preresume(struct dm_targ
 	return r;
 }
 
+#define RESUME_STAY_FROZEN_FLAGS (CTR_FLAG_DELTA_DISKS | CTR_FLAG_DATA_OFFSET)
+
 static void raid_resume(struct dm_target *ti)
 {
 	struct raid_set *rs = ti->private;
@@ -3641,7 +3640,15 @@ static void raid_resume(struct dm_target
 	mddev->ro = 0;
 	mddev->in_sync = 0;
 
-	clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+	/*
+	 * Keep the RAID set frozen if reshape/rebuild flags are set.
+	 * The RAID set is unfrozen once the next table load/resume,
+	 * which clears the reshape/rebuild flags, occurs.
+	 * This ensures that the constructor for the inactive table
+	 * retrieves an up-to-date reshape_position.
+	 */
+	if (!(rs->ctr_flags & RESUME_STAY_FROZEN_FLAGS))
+		clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
 
 	if (mddev->suspended)
 		mddev_resume(mddev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-round-robin.c linux-libre-4.9.52-gnu/drivers/md/dm-round-robin.c
--- linux-libre-4.9-gnu/drivers/md/dm-round-robin.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-round-robin.c	2017-09-27 08:40:05.000000000 -0400
@@ -17,8 +17,8 @@
 #include <linux/module.h>
 
 #define DM_MSG_PREFIX "multipath round-robin"
-#define RR_MIN_IO     1000
-#define RR_VERSION    "1.1.0"
+#define RR_MIN_IO     1
+#define RR_VERSION    "1.2.0"
 
 /*-----------------------------------------------------------------
  * Path-handling code, paths are held in lists
@@ -47,44 +47,19 @@ struct selector {
 	struct list_head valid_paths;
 	struct list_head invalid_paths;
 	spinlock_t lock;
-	struct dm_path * __percpu *current_path;
-	struct percpu_counter repeat_count;
 };
 
-static void set_percpu_current_path(struct selector *s, struct dm_path *path)
-{
-	int cpu;
-
-	for_each_possible_cpu(cpu)
-		*per_cpu_ptr(s->current_path, cpu) = path;
-}
-
 static struct selector *alloc_selector(void)
 {
 	struct selector *s = kmalloc(sizeof(*s), GFP_KERNEL);
 
-	if (!s)
-		return NULL;
-
-	INIT_LIST_HEAD(&s->valid_paths);
-	INIT_LIST_HEAD(&s->invalid_paths);
-	spin_lock_init(&s->lock);
-
-	s->current_path = alloc_percpu(struct dm_path *);
-	if (!s->current_path)
-		goto out_current_path;
-	set_percpu_current_path(s, NULL);
-
-	if (percpu_counter_init(&s->repeat_count, 0, GFP_KERNEL))
-		goto out_repeat_count;
+	if (s) {
+		INIT_LIST_HEAD(&s->valid_paths);
+		INIT_LIST_HEAD(&s->invalid_paths);
+		spin_lock_init(&s->lock);
+	}
 
 	return s;
-
-out_repeat_count:
-	free_percpu(s->current_path);
-out_current_path:
-	kfree(s);
-	return NULL;;
 }
 
 static int rr_create(struct path_selector *ps, unsigned argc, char **argv)
@@ -105,8 +80,6 @@ static void rr_destroy(struct path_selec
 
 	free_paths(&s->valid_paths);
 	free_paths(&s->invalid_paths);
-	free_percpu(s->current_path);
-	percpu_counter_destroy(&s->repeat_count);
 	kfree(s);
 	ps->context = NULL;
 }
@@ -157,6 +130,11 @@ static int rr_add_path(struct path_selec
 		return -EINVAL;
 	}
 
+	if (repeat_count > 1) {
+		DMWARN_LIMIT("repeat_count > 1 is deprecated, using 1 instead");
+		repeat_count = 1;
+	}
+
 	/* allocate the path */
 	pi = kmalloc(sizeof(*pi), GFP_KERNEL);
 	if (!pi) {
@@ -183,9 +161,6 @@ static void rr_fail_path(struct path_sel
 	struct path_info *pi = p->pscontext;
 
 	spin_lock_irqsave(&s->lock, flags);
-	if (p == *this_cpu_ptr(s->current_path))
-		set_percpu_current_path(s, NULL);
-
 	list_move(&pi->list, &s->invalid_paths);
 	spin_unlock_irqrestore(&s->lock, flags);
 }
@@ -208,29 +183,15 @@ static struct dm_path *rr_select_path(st
 	unsigned long flags;
 	struct selector *s = ps->context;
 	struct path_info *pi = NULL;
-	struct dm_path *current_path = NULL;
 
-	local_irq_save(flags);
-	current_path = *this_cpu_ptr(s->current_path);
-	if (current_path) {
-		percpu_counter_dec(&s->repeat_count);
-		if (percpu_counter_read_positive(&s->repeat_count) > 0) {
-			local_irq_restore(flags);
-			return current_path;
-		}
-	}
-
-	spin_lock(&s->lock);
+	spin_lock_irqsave(&s->lock, flags);
 	if (!list_empty(&s->valid_paths)) {
 		pi = list_entry(s->valid_paths.next, struct path_info, list);
 		list_move_tail(&pi->list, &s->valid_paths);
-		percpu_counter_set(&s->repeat_count, pi->repeat_count);
-		set_percpu_current_path(s, pi->path);
-		current_path = pi->path;
 	}
 	spin_unlock_irqrestore(&s->lock, flags);
 
-	return current_path;
+	return pi ? pi->path : NULL;
 }
 
 static struct path_selector_type rr_ps = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-rq.c linux-libre-4.9.52-gnu/drivers/md/dm-rq.c
--- linux-libre-4.9-gnu/drivers/md/dm-rq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-rq.c	2017-09-27 08:40:05.000000000 -0400
@@ -226,6 +226,9 @@ static void rq_end_stats(struct mapped_d
  */
 static void rq_completed(struct mapped_device *md, int rw, bool run_queue)
 {
+	struct request_queue *q = md->queue;
+	unsigned long flags;
+
 	atomic_dec(&md->pending[rw]);
 
 	/* nudge anyone waiting on suspend queue */
@@ -238,8 +241,11 @@ static void rq_completed(struct mapped_d
 	 * back into ->request_fn() could deadlock attempting to grab the
 	 * queue lock again.
 	 */
-	if (!md->queue->mq_ops && run_queue)
-		blk_run_queue_async(md->queue);
+	if (!q->mq_ops && run_queue) {
+		spin_lock_irqsave(q->queue_lock, flags);
+		blk_run_queue_async(q);
+		spin_unlock_irqrestore(q->queue_lock, flags);
+	}
 
 	/*
 	 * dm_put() must be at the end of this function. See the comment above
@@ -798,6 +804,10 @@ static void dm_old_request_fn(struct req
 		int srcu_idx;
 		struct dm_table *map = dm_get_live_table(md, &srcu_idx);
 
+		if (unlikely(!map)) {
+			dm_put_live_table(md, srcu_idx);
+			return;
+		}
 		ti = dm_table_find_target(map, pos);
 		dm_put_live_table(md, srcu_idx);
 	}
@@ -987,10 +997,14 @@ int dm_mq_init_request_queue(struct mapp
 	dm_init_md_queue(md);
 
 	/* backfill 'mq' sysfs registration normally done in blk_register_queue */
-	blk_mq_register_dev(disk_to_dev(md->disk), q);
+	err = blk_mq_register_dev(disk_to_dev(md->disk), q);
+	if (err)
+		goto out_cleanup_queue;
 
 	return 0;
 
+out_cleanup_queue:
+	blk_cleanup_queue(q);
 out_tag_set:
 	blk_mq_free_tag_set(md->tag_set);
 out_kfree_tag_set:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-stats.c linux-libre-4.9.52-gnu/drivers/md/dm-stats.c
--- linux-libre-4.9-gnu/drivers/md/dm-stats.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-stats.c	2017-09-27 08:40:05.000000000 -0400
@@ -175,6 +175,7 @@ static void dm_stat_free(struct rcu_head
 	int cpu;
 	struct dm_stat *s = container_of(head, struct dm_stat, rcu_head);
 
+	kfree(s->histogram_boundaries);
 	kfree(s->program_id);
 	kfree(s->aux_data);
 	for_each_possible_cpu(cpu) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-table.c linux-libre-4.9.52-gnu/drivers/md/dm-table.c
--- linux-libre-4.9-gnu/drivers/md/dm-table.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-table.c	2017-09-27 08:40:05.000000000 -0400
@@ -924,12 +924,6 @@ static int dm_table_determine_type(struc
 
 	BUG_ON(!request_based); /* No targets in this table */
 
-	if (list_empty(devices) && __table_type_request_based(live_md_type)) {
-		/* inherit live MD type */
-		t->type = live_md_type;
-		return 0;
-	}
-
 	/*
 	 * The only way to establish DM_TYPE_MQ_REQUEST_BASED is by
 	 * having a compatible target use dm_table_set_type.
@@ -948,6 +942,19 @@ verify_rq_based:
 		return -EINVAL;
 	}
 
+	if (list_empty(devices)) {
+		int srcu_idx;
+		struct dm_table *live_table = dm_get_live_table(t->md, &srcu_idx);
+
+		/* inherit live table's type and all_blk_mq */
+		if (live_table) {
+			t->type = live_table->type;
+			t->all_blk_mq = live_table->all_blk_mq;
+		}
+		dm_put_live_table(t->md, srcu_idx);
+		return 0;
+	}
+
 	/* Non-request-stackable devices can't be used for request-based dm */
 	list_for_each_entry(dd, devices, list) {
 		struct request_queue *q = bdev_get_queue(dd->dm_dev->bdev);
@@ -974,6 +981,11 @@ verify_rq_based:
 		t->all_blk_mq = true;
 	}
 
+	if (t->type == DM_TYPE_MQ_REQUEST_BASED && !t->all_blk_mq) {
+		DMERR("table load rejected: all devices are not blk-mq request-stackable");
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-thin.c linux-libre-4.9.52-gnu/drivers/md/dm-thin.c
--- linux-libre-4.9-gnu/drivers/md/dm-thin.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-thin.c	2017-09-27 08:40:05.000000000 -0400
@@ -1070,6 +1070,7 @@ static void passdown_endio(struct bio *b
 	 * to unmap (we ignore err).
 	 */
 	queue_passdown_pt2(bio->bi_private);
+	bio_put(bio);
 }
 
 static void process_prepared_discard_passdown_pt1(struct dm_thin_new_mapping *m)
@@ -1094,6 +1095,19 @@ static void process_prepared_discard_pas
 		return;
 	}
 
+	/*
+	 * Increment the unmapped blocks.  This prevents a race between the
+	 * passdown io and reallocation of freed blocks.
+	 */
+	r = dm_pool_inc_data_range(pool->pmd, m->data_block, data_end);
+	if (r) {
+		metadata_operation_failed(pool, "dm_pool_inc_data_range", r);
+		bio_io_error(m->bio);
+		cell_defer_no_holder(tc, m->cell);
+		mempool_free(m, pool->mapping_pool);
+		return;
+	}
+
 	discard_parent = bio_alloc(GFP_NOIO, 1);
 	if (!discard_parent) {
 		DMWARN("%s: unable to allocate top level discard bio for passdown. Skipping passdown.",
@@ -1114,19 +1128,6 @@ static void process_prepared_discard_pas
 			end_discard(&op, r);
 		}
 	}
-
-	/*
-	 * Increment the unmapped blocks.  This prevents a race between the
-	 * passdown io and reallocation of freed blocks.
-	 */
-	r = dm_pool_inc_data_range(pool->pmd, m->data_block, data_end);
-	if (r) {
-		metadata_operation_failed(pool, "dm_pool_inc_data_range", r);
-		bio_io_error(m->bio);
-		cell_defer_no_holder(tc, m->cell);
-		mempool_free(m, pool->mapping_pool);
-		return;
-	}
 }
 
 static void process_prepared_discard_passdown_pt2(struct dm_thin_new_mapping *m)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-thin-metadata.c linux-libre-4.9.52-gnu/drivers/md/dm-thin-metadata.c
--- linux-libre-4.9-gnu/drivers/md/dm-thin-metadata.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-thin-metadata.c	2017-09-27 08:40:05.000000000 -0400
@@ -485,11 +485,11 @@ static int __write_initial_superblock(st
 	if (r < 0)
 		return r;
 
-	r = save_sm_roots(pmd);
+	r = dm_tm_pre_commit(pmd->tm);
 	if (r < 0)
 		return r;
 
-	r = dm_tm_pre_commit(pmd->tm);
+	r = save_sm_roots(pmd);
 	if (r < 0)
 		return r;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-verity-fec.c linux-libre-4.9.52-gnu/drivers/md/dm-verity-fec.c
--- linux-libre-4.9-gnu/drivers/md/dm-verity-fec.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-verity-fec.c	2017-09-27 08:40:05.000000000 -0400
@@ -146,8 +146,6 @@ static int fec_decode_bufs(struct dm_ver
 		block = fec_buffer_rs_block(v, fio, n, i);
 		res = fec_decode_rs8(v, fio, block, &par[offset], neras);
 		if (res < 0) {
-			dm_bufio_release(buf);
-
 			r = res;
 			goto error;
 		}
@@ -172,6 +170,8 @@ static int fec_decode_bufs(struct dm_ver
 done:
 	r = corrected;
 error:
+	dm_bufio_release(buf);
+
 	if (r < 0 && neras)
 		DMERR_LIMIT("%s: FEC %llu: failed to correct: %d",
 			    v->data_dev->name, (unsigned long long)rsb, r);
@@ -269,7 +269,7 @@ static int fec_read_bufs(struct dm_verit
 					  &is_zero) == 0) {
 			/* skip known zero blocks entirely */
 			if (is_zero)
-				continue;
+				goto done;
 
 			/*
 			 * skip if we have already found the theoretical
@@ -439,6 +439,13 @@ int verity_fec_decode(struct dm_verity *
 	if (!verity_fec_is_enabled(v))
 		return -EOPNOTSUPP;
 
+	if (fio->level >= DM_VERITY_FEC_MAX_RECURSION) {
+		DMWARN_LIMIT("%s: FEC: recursion too deep", v->data_dev->name);
+		return -EIO;
+	}
+
+	fio->level++;
+
 	if (type == DM_VERITY_BLOCK_TYPE_METADATA)
 		block += v->data_blocks;
 
@@ -470,7 +477,7 @@ int verity_fec_decode(struct dm_verity *
 	if (r < 0) {
 		r = fec_decode_rsb(v, io, fio, rsb, offset, true);
 		if (r < 0)
-			return r;
+			goto done;
 	}
 
 	if (dest)
@@ -480,6 +487,8 @@ int verity_fec_decode(struct dm_verity *
 		r = verity_for_bv_block(v, io, iter, fec_bv_copy);
 	}
 
+done:
+	fio->level--;
 	return r;
 }
 
@@ -520,6 +529,7 @@ void verity_fec_init_io(struct dm_verity
 	memset(fio->bufs, 0, sizeof(fio->bufs));
 	fio->nbufs = 0;
 	fio->output = NULL;
+	fio->level = 0;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/dm-verity-fec.h linux-libre-4.9.52-gnu/drivers/md/dm-verity-fec.h
--- linux-libre-4.9-gnu/drivers/md/dm-verity-fec.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/dm-verity-fec.h	2017-09-27 08:40:05.000000000 -0400
@@ -27,6 +27,9 @@
 #define DM_VERITY_FEC_BUF_MAX \
 	(1 << (PAGE_SHIFT - DM_VERITY_FEC_BUF_RS_BITS))
 
+/* maximum recursion level for verity_fec_decode */
+#define DM_VERITY_FEC_MAX_RECURSION	4
+
 #define DM_VERITY_OPT_FEC_DEV		"use_fec_from_device"
 #define DM_VERITY_OPT_FEC_BLOCKS	"fec_blocks"
 #define DM_VERITY_OPT_FEC_START		"fec_start"
@@ -58,6 +61,7 @@ struct dm_verity_fec_io {
 	unsigned nbufs;		/* number of buffers allocated */
 	u8 *output;		/* buffer for corrected output */
 	size_t output_pos;
+	unsigned level;		/* recursion level */
 };
 
 #ifdef CONFIG_DM_VERITY_FEC
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/Kconfig linux-libre-4.9.52-gnu/drivers/md/Kconfig
--- linux-libre-4.9-gnu/drivers/md/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -357,6 +357,7 @@ config DM_LOG_USERSPACE
 config DM_RAID
        tristate "RAID 1/4/5/6/10 target"
        depends on BLK_DEV_DM
+       select MD_RAID0
        select MD_RAID1
        select MD_RAID10
        select MD_RAID456
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/linear.c linux-libre-4.9.52-gnu/drivers/md/linear.c
--- linux-libre-4.9-gnu/drivers/md/linear.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/linear.c	2017-09-27 08:40:05.000000000 -0400
@@ -52,18 +52,26 @@ static inline struct dev_info *which_dev
 	return conf->disks + lo;
 }
 
+/*
+ * In linear_congested() conf->raid_disks is used as a copy of
+ * mddev->raid_disks to iterate conf->disks[], because conf->raid_disks
+ * and conf->disks[] are created in linear_conf(), they are always
+ * consitent with each other, but mddev->raid_disks does not.
+ */
 static int linear_congested(struct mddev *mddev, int bits)
 {
 	struct linear_conf *conf;
 	int i, ret = 0;
 
-	conf = mddev->private;
+	rcu_read_lock();
+	conf = rcu_dereference(mddev->private);
 
-	for (i = 0; i < mddev->raid_disks && !ret ; i++) {
+	for (i = 0; i < conf->raid_disks && !ret ; i++) {
 		struct request_queue *q = bdev_get_queue(conf->disks[i].rdev->bdev);
 		ret |= bdi_congested(&q->backing_dev_info, bits);
 	}
 
+	rcu_read_unlock();
 	return ret;
 }
 
@@ -143,6 +151,19 @@ static struct linear_conf *linear_conf(s
 			conf->disks[i-1].end_sector +
 			conf->disks[i].rdev->sectors;
 
+	/*
+	 * conf->raid_disks is copy of mddev->raid_disks. The reason to
+	 * keep a copy of mddev->raid_disks in struct linear_conf is,
+	 * mddev->raid_disks may not be consistent with pointers number of
+	 * conf->disks[] when it is updated in linear_add() and used to
+	 * iterate old conf->disks[] earray in linear_congested().
+	 * Here conf->raid_disks is always consitent with number of
+	 * pointers in conf->disks[] array, and mddev->private is updated
+	 * with rcu_assign_pointer() in linear_addr(), such race can be
+	 * avoided.
+	 */
+	conf->raid_disks = raid_disks;
+
 	return conf;
 
 out:
@@ -195,15 +216,23 @@ static int linear_add(struct mddev *mdde
 	if (!newconf)
 		return -ENOMEM;
 
+	/* newconf->raid_disks already keeps a copy of * the increased
+	 * value of mddev->raid_disks, WARN_ONCE() is just used to make
+	 * sure of this. It is possible that oldconf is still referenced
+	 * in linear_congested(), therefore kfree_rcu() is used to free
+	 * oldconf until no one uses it anymore.
+	 */
 	mddev_suspend(mddev);
-	oldconf = mddev->private;
+	oldconf = rcu_dereference(mddev->private);
 	mddev->raid_disks++;
-	mddev->private = newconf;
+	WARN_ONCE(mddev->raid_disks != newconf->raid_disks,
+		"copied raid_disks doesn't match mddev->raid_disks");
+	rcu_assign_pointer(mddev->private, newconf);
 	md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
 	set_capacity(mddev->gendisk, mddev->array_sectors);
 	mddev_resume(mddev);
 	revalidate_disk(mddev->gendisk);
-	kfree(oldconf);
+	kfree_rcu(oldconf, rcu);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/linear.h linux-libre-4.9.52-gnu/drivers/md/linear.h
--- linux-libre-4.9-gnu/drivers/md/linear.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/linear.h	2017-09-27 08:40:05.000000000 -0400
@@ -10,6 +10,7 @@ struct linear_conf
 {
 	struct rcu_head		rcu;
 	sector_t		array_sectors;
+	int			raid_disks; /* a copy of mddev->raid_disks */
 	struct dev_info		disks[0];
 };
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/md.c linux-libre-4.9.52-gnu/drivers/md/md.c
--- linux-libre-4.9-gnu/drivers/md/md.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/md.c	2017-09-27 08:40:05.000000000 -0400
@@ -1861,7 +1861,7 @@ super_1_rdev_size_change(struct md_rdev
 	}
 	sb = page_address(rdev->sb_page);
 	sb->data_size = cpu_to_le64(num_sectors);
-	sb->super_offset = rdev->sb_start;
+	sb->super_offset = cpu_to_le64(rdev->sb_start);
 	sb->sb_csum = calc_sb_1_csum(sb);
 	md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
 		       rdev->sb_page);
@@ -2270,7 +2270,7 @@ static bool does_sb_need_changing(struct
 	/* Check if any mddev parameters have changed */
 	if ((mddev->dev_sectors != le64_to_cpu(sb->size)) ||
 	    (mddev->reshape_position != le64_to_cpu(sb->reshape_position)) ||
-	    (mddev->layout != le64_to_cpu(sb->layout)) ||
+	    (mddev->layout != le32_to_cpu(sb->layout)) ||
 	    (mddev->raid_disks != le32_to_cpu(sb->raid_disks)) ||
 	    (mddev->chunk_sectors != le32_to_cpu(sb->chunksize)))
 		return true;
@@ -6752,6 +6752,7 @@ static int md_ioctl(struct block_device
 	void __user *argp = (void __user *)arg;
 	struct mddev *mddev = NULL;
 	int ro;
+	bool did_set_md_closing = false;
 
 	if (!md_ioctl_valid(cmd))
 		return -ENOTTY;
@@ -6829,7 +6830,7 @@ static int md_ioctl(struct block_device
 		/* need to ensure recovery thread has run */
 		wait_event_interruptible_timeout(mddev->sb_wait,
 						 !test_bit(MD_RECOVERY_NEEDED,
-							   &mddev->flags),
+							   &mddev->recovery),
 						 msecs_to_jiffies(5000));
 	if (cmd == STOP_ARRAY || cmd == STOP_ARRAY_RO) {
 		/* Need to flush page cache, and ensure no-one else opens
@@ -6841,7 +6842,9 @@ static int md_ioctl(struct block_device
 			err = -EBUSY;
 			goto out;
 		}
+		WARN_ON_ONCE(test_bit(MD_CLOSING, &mddev->flags));
 		set_bit(MD_CLOSING, &mddev->flags);
+		did_set_md_closing = true;
 		mutex_unlock(&mddev->open_mutex);
 		sync_blockdev(bdev);
 	}
@@ -7041,6 +7044,8 @@ unlock:
 		mddev->hold_active = 0;
 	mddev_unlock(mddev);
 out:
+	if(did_set_md_closing)
+		clear_bit(MD_CLOSING, &mddev->flags);
 	return err;
 }
 #ifdef CONFIG_COMPAT
@@ -7092,7 +7097,8 @@ static int md_open(struct block_device *
 
 	if (test_bit(MD_CLOSING, &mddev->flags)) {
 		mutex_unlock(&mddev->open_mutex);
-		return -ENODEV;
+		err = -ENODEV;
+		goto out;
 	}
 
 	err = 0;
@@ -7101,6 +7107,8 @@ static int md_open(struct block_device *
 
 	check_disk_change(bdev);
  out:
+	if (err)
+		mddev_put(mddev);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/persistent-data/dm-btree.c linux-libre-4.9.52-gnu/drivers/md/persistent-data/dm-btree.c
--- linux-libre-4.9-gnu/drivers/md/persistent-data/dm-btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/persistent-data/dm-btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -897,8 +897,12 @@ static int find_key(struct ro_spine *s,
 		else
 			*result_key = le64_to_cpu(ro_node(s)->keys[0]);
 
-		if (next_block || flags & INTERNAL_NODE)
-			block = value64(ro_node(s), i);
+		if (next_block || flags & INTERNAL_NODE) {
+			if (find_highest)
+				block = value64(ro_node(s), i);
+			else
+				block = value64(ro_node(s), 0);
+		}
 
 	} while (flags & INTERNAL_NODE);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/persistent-data/dm-space-map-disk.c linux-libre-4.9.52-gnu/drivers/md/persistent-data/dm-space-map-disk.c
--- linux-libre-4.9-gnu/drivers/md/persistent-data/dm-space-map-disk.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/persistent-data/dm-space-map-disk.c	2017-09-27 08:40:05.000000000 -0400
@@ -142,10 +142,23 @@ static int sm_disk_inc_block(struct dm_s
 
 static int sm_disk_dec_block(struct dm_space_map *sm, dm_block_t b)
 {
+	int r;
+	uint32_t old_count;
 	enum allocation_event ev;
 	struct sm_disk *smd = container_of(sm, struct sm_disk, sm);
 
-	return sm_ll_dec(&smd->ll, b, &ev);
+	r = sm_ll_dec(&smd->ll, b, &ev);
+	if (!r && (ev == SM_FREE)) {
+		/*
+		 * It's only free if it's also free in the last
+		 * transaction.
+		 */
+		r = sm_ll_lookup(&smd->old_ll, b, &old_count);
+		if (!r && !old_count)
+			smd->nr_allocated_this_transaction--;
+	}
+
+	return r;
 }
 
 static int sm_disk_new_block(struct dm_space_map *sm, dm_block_t *b)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/persistent-data/dm-space-map-metadata.c linux-libre-4.9.52-gnu/drivers/md/persistent-data/dm-space-map-metadata.c
--- linux-libre-4.9-gnu/drivers/md/persistent-data/dm-space-map-metadata.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/persistent-data/dm-space-map-metadata.c	2017-09-27 08:40:05.000000000 -0400
@@ -775,17 +775,15 @@ int dm_sm_metadata_create(struct dm_spac
 	memcpy(&smm->sm, &bootstrap_ops, sizeof(smm->sm));
 
 	r = sm_ll_new_metadata(&smm->ll, tm);
+	if (!r) {
+		if (nr_blocks > DM_SM_METADATA_MAX_BLOCKS)
+			nr_blocks = DM_SM_METADATA_MAX_BLOCKS;
+		r = sm_ll_extend(&smm->ll, nr_blocks);
+	}
+	memcpy(&smm->sm, &ops, sizeof(smm->sm));
 	if (r)
 		return r;
 
-	if (nr_blocks > DM_SM_METADATA_MAX_BLOCKS)
-		nr_blocks = DM_SM_METADATA_MAX_BLOCKS;
-	r = sm_ll_extend(&smm->ll, nr_blocks);
-	if (r)
-		return r;
-
-	memcpy(&smm->sm, &ops, sizeof(smm->sm));
-
 	/*
 	 * Now we need to update the newly created data structures with the
 	 * allocated blocks that they were built from.
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/raid10.c linux-libre-4.9.52-gnu/drivers/md/raid10.c
--- linux-libre-4.9-gnu/drivers/md/raid10.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/raid10.c	2017-09-27 08:40:05.000000000 -0400
@@ -941,7 +941,8 @@ static void wait_barrier(struct r10conf
 				    !conf->barrier ||
 				    (atomic_read(&conf->nr_pending) &&
 				     current->bio_list &&
-				     !bio_list_empty(current->bio_list)),
+				     (!bio_list_empty(&current->bio_list[0]) ||
+				      !bio_list_empty(&current->bio_list[1]))),
 				    conf->resync_lock);
 		conf->nr_waiting--;
 		if (!conf->nr_waiting)
@@ -1470,7 +1471,25 @@ static void raid10_make_request(struct m
 			split = bio;
 		}
 
+		/*
+		 * If a bio is splitted, the first part of bio will pass
+		 * barrier but the bio is queued in current->bio_list (see
+		 * generic_make_request). If there is a raise_barrier() called
+		 * here, the second part of bio can't pass barrier. But since
+		 * the first part bio isn't dispatched to underlaying disks
+		 * yet, the barrier is never released, hence raise_barrier will
+		 * alays wait. We have a deadlock.
+		 * Note, this only happens in read path. For write path, the
+		 * first part of bio is dispatched in a schedule() call
+		 * (because of blk plug) or offloaded to raid10d.
+		 * Quitting from the function immediately can change the bio
+		 * order queued in bio_list and avoid the deadlock.
+		 */
 		__make_request(mddev, split);
+		if (split != bio && bio_data_dir(bio) == READ) {
+			generic_make_request(bio);
+			break;
+		}
 	} while (split != bio);
 
 	/* In case raid10d snuck in to freeze_array */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/raid1.c linux-libre-4.9.52-gnu/drivers/md/raid1.c
--- linux-libre-4.9-gnu/drivers/md/raid1.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/raid1.c	2017-09-27 08:40:05.000000000 -0400
@@ -1073,7 +1073,7 @@ static void raid1_make_request(struct md
 		 */
 		DEFINE_WAIT(w);
 		for (;;) {
-			flush_signals(current);
+			sigset_t full, old;
 			prepare_to_wait(&conf->wait_barrier,
 					&w, TASK_INTERRUPTIBLE);
 			if (bio_end_sector(bio) <= mddev->suspend_lo ||
@@ -1082,7 +1082,10 @@ static void raid1_make_request(struct md
 			     !md_cluster_ops->area_resyncing(mddev, WRITE,
 				     bio->bi_iter.bi_sector, bio_end_sector(bio))))
 				break;
+			sigfillset(&full);
+			sigprocmask(SIG_BLOCK, &full, &old);
 			schedule();
+			sigprocmask(SIG_SETMASK, &old, NULL);
 		}
 		finish_wait(&conf->wait_barrier, &w);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/md/raid5.c linux-libre-4.9.52-gnu/drivers/md/raid5.c
--- linux-libre-4.9-gnu/drivers/md/raid5.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/md/raid5.c	2017-09-27 08:40:05.000000000 -0400
@@ -2253,6 +2253,10 @@ static int resize_stripes(struct r5conf
 		err = -ENOMEM;
 
 	mutex_unlock(&conf->cache_size_mutex);
+
+	conf->slab_cache = sc;
+	conf->active_name = 1-conf->active_name;
+
 	/* Step 4, return new stripes to service */
 	while(!list_empty(&newstripes)) {
 		nsh = list_entry(newstripes.next, struct stripe_head, lru);
@@ -2270,8 +2274,6 @@ static int resize_stripes(struct r5conf
 	}
 	/* critical section pass, GFP_NOIO no longer needed */
 
-	conf->slab_cache = sc;
-	conf->active_name = 1-conf->active_name;
 	if (!err)
 		conf->pool_size = newsize;
 	return err;
@@ -5298,12 +5300,15 @@ static void raid5_make_request(struct md
 				 * userspace, we want an interruptible
 				 * wait.
 				 */
-				flush_signals(current);
 				prepare_to_wait(&conf->wait_for_overlap,
 						&w, TASK_INTERRUPTIBLE);
 				if (logical_sector >= mddev->suspend_lo &&
 				    logical_sector < mddev->suspend_hi) {
+					sigset_t full, old;
+					sigfillset(&full);
+					sigprocmask(SIG_BLOCK, &full, &old);
 					schedule();
+					sigprocmask(SIG_SETMASK, &old, NULL);
 					do_prepare = true;
 				}
 				goto retry;
@@ -5838,6 +5843,10 @@ static void raid5_do_work(struct work_st
 	pr_debug("%d stripes handled\n", handled);
 
 	spin_unlock_irq(&conf->device_lock);
+
+	r5l_flush_stripe_to_raid(conf->log);
+
+	async_tx_issue_pending_all();
 	blk_finish_plug(&plug);
 
 	pr_debug("--- raid5worker inactive\n");
@@ -6984,6 +6993,15 @@ static int raid5_run(struct mddev *mddev
 			stripe = (stripe | (stripe-1)) + 1;
 		mddev->queue->limits.discard_alignment = stripe;
 		mddev->queue->limits.discard_granularity = stripe;
+
+		/*
+		 * We use 16-bit counter of active stripes in bi_phys_segments
+		 * (minus one for over-loaded initialization)
+		 */
+		blk_queue_max_hw_sectors(mddev->queue, 0xfffe * STRIPE_SECTORS);
+		blk_queue_max_discard_sectors(mddev->queue,
+					      0xfffe * STRIPE_SECTORS);
+
 		/*
 		 * unaligned part of discard request will be ignored, so can't
 		 * guarantee discard_zeroes_data
@@ -7546,12 +7564,10 @@ static void end_reshape(struct r5conf *c
 {
 
 	if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
-		struct md_rdev *rdev;
 
 		spin_lock_irq(&conf->device_lock);
 		conf->previous_raid_disks = conf->raid_disks;
-		rdev_for_each(rdev, conf->mddev)
-			rdev->data_offset = rdev->new_data_offset;
+		md_finish_reshape(conf->mddev);
 		smp_wmb();
 		conf->reshape_progress = MaxSector;
 		conf->mddev->reshape_position = MaxSector;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/dvb-frontends/cxd2820r_core.c linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/cxd2820r_core.c
--- linux-libre-4.9-gnu/drivers/media/dvb-frontends/cxd2820r_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/cxd2820r_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -615,6 +615,7 @@ static int cxd2820r_probe(struct i2c_cli
 	}
 
 	priv->client[0] = client;
+	priv->fe.demodulator_priv = priv;
 	priv->i2c = client->adapter;
 	priv->ts_mode = pdata->ts_mode;
 	priv->ts_clk_inv = pdata->ts_clk_inv;
@@ -697,7 +698,6 @@ static int cxd2820r_probe(struct i2c_cli
 	memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(priv->fe.ops));
 	if (!pdata->attach_in_use)
 		priv->fe.ops.release = NULL;
-	priv->fe.demodulator_priv = priv;
 	i2c_set_clientdata(client, priv);
 
 	/* Setup callbacks */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/dvb-frontends/cxd2841er.c linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/cxd2841er.c
--- linux-libre-4.9-gnu/drivers/media/dvb-frontends/cxd2841er.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/cxd2841er.c	2017-09-27 08:40:05.000000000 -0400
@@ -3852,7 +3852,9 @@ static struct  dvb_frontend_ops cxd2841e
 			FE_CAN_MUTE_TS |
 			FE_CAN_2G_MODULATION,
 		.frequency_min = 42000000,
-		.frequency_max = 1002000000
+		.frequency_max = 1002000000,
+		.symbol_rate_min = 870000,
+		.symbol_rate_max = 11700000
 	},
 	.init = cxd2841er_init_tc,
 	.sleep = cxd2841er_sleep_tc,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/dvb-frontends/mn88472.c linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/mn88472.c
--- linux-libre-4.9-gnu/drivers/media/dvb-frontends/mn88472.c	2016-12-11 17:46:30.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/mn88472.c	2017-09-27 14:48:19.000000000 -0400
@@ -488,18 +488,6 @@ static int mn88472_probe(struct i2c_clie
 		goto err_kfree;
 	}
 
-	/* Check demod answers with correct chip id */
-	ret = regmap_read(dev->regmap[0], 0xff, &utmp);
-	if (ret)
-		goto err_regmap_0_regmap_exit;
-
-	dev_dbg(&client->dev, "chip id=%02x\n", utmp);
-
-	if (utmp != 0x02) {
-		ret = -ENODEV;
-		goto err_regmap_0_regmap_exit;
-	}
-
 	/*
 	 * Chip has three I2C addresses for different register banks. Used
 	 * addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
@@ -536,6 +524,18 @@ static int mn88472_probe(struct i2c_clie
 	}
 	i2c_set_clientdata(dev->client[2], dev);
 
+	/* Check demod answers with correct chip id */
+	ret = regmap_read(dev->regmap[2], 0xff, &utmp);
+	if (ret)
+		goto err_regmap_2_regmap_exit;
+
+	dev_dbg(&client->dev, "chip id=%02x\n", utmp);
+
+	if (utmp != 0x02) {
+		ret = -ENODEV;
+		goto err_regmap_2_regmap_exit;
+	}
+
 	/* Sleep because chip is active by default */
 	ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/dvb-frontends/mn88473.c linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/mn88473.c
--- linux-libre-4.9-gnu/drivers/media/dvb-frontends/mn88473.c	2016-12-11 17:46:35.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/dvb-frontends/mn88473.c	2017-09-27 14:48:29.000000000 -0400
@@ -485,18 +485,6 @@ static int mn88473_probe(struct i2c_clie
 		goto err_kfree;
 	}
 
-	/* Check demod answers with correct chip id */
-	ret = regmap_read(dev->regmap[0], 0xff, &uitmp);
-	if (ret)
-		goto err_regmap_0_regmap_exit;
-
-	dev_dbg(&client->dev, "chip id=%02x\n", uitmp);
-
-	if (uitmp != 0x03) {
-		ret = -ENODEV;
-		goto err_regmap_0_regmap_exit;
-	}
-
 	/*
 	 * Chip has three I2C addresses for different register banks. Used
 	 * addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
@@ -533,6 +521,18 @@ static int mn88473_probe(struct i2c_clie
 	}
 	i2c_set_clientdata(dev->client[2], dev);
 
+	/* Check demod answers with correct chip id */
+	ret = regmap_read(dev->regmap[2], 0xff, &uitmp);
+	if (ret)
+		goto err_regmap_2_regmap_exit;
+
+	dev_dbg(&client->dev, "chip id=%02x\n", uitmp);
+
+	if (uitmp != 0x03) {
+		ret = -ENODEV;
+		goto err_regmap_2_regmap_exit;
+	}
+
 	/* Sleep because chip is active by default */
 	ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/i2c/Kconfig linux-libre-4.9.52-gnu/drivers/media/i2c/Kconfig
--- linux-libre-4.9-gnu/drivers/media/i2c/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/i2c/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -655,6 +655,7 @@ config VIDEO_S5K6A3
 config VIDEO_S5K4ECGX
         tristate "Samsung S5K4ECGX sensor support"
         depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select CRC32
         ---help---
           This is a V4L2 sensor-level driver for Samsung S5K4ECGX 5M
           camera sensor with an embedded SoC image signal processor.
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c linux-libre-4.9.52-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c
--- linux-libre-4.9-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/i2c/s5c73m3/s5c73m3-ctrls.c	2017-09-27 08:40:05.000000000 -0400
@@ -211,7 +211,7 @@ static int s5c73m3_3a_lock(struct s5c73m
 	}
 
 	if ((ctrl->val ^ ctrl->cur.val) & V4L2_LOCK_FOCUS)
-		ret = s5c73m3_af_run(state, ~af_lock);
+		ret = s5c73m3_af_run(state, !af_lock);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/i2c/tvp5150.c linux-libre-4.9.52-gnu/drivers/media/i2c/tvp5150.c
--- linux-libre-4.9-gnu/drivers/media/i2c/tvp5150.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/i2c/tvp5150.c	2017-09-27 08:40:05.000000000 -0400
@@ -288,8 +288,12 @@ static inline void tvp5150_selmux(struct
 	tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
 	tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
 
-	/* Svideo should enable YCrCb output and disable GPCL output
-	 * For Composite and TV, it should be the reverse
+	/*
+	 * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
+	 * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
+	 * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
+	 * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
+	 * INTREQ/GPCL/VBLK to logic 1.
 	 */
 	val = tvp5150_read(sd, TVP5150_MISC_CTL);
 	if (val < 0) {
@@ -298,9 +302,9 @@ static inline void tvp5150_selmux(struct
 	}
 
 	if (decoder->input == TVP5150_SVIDEO)
-		val = (val & ~0x40) | 0x10;
+		val = (val & ~TVP5150_MISC_CTL_GPCL) | TVP5150_MISC_CTL_HVLK;
 	else
-		val = (val & ~0x10) | 0x40;
+		val = (val & ~TVP5150_MISC_CTL_HVLK) | TVP5150_MISC_CTL_GPCL;
 	tvp5150_write(sd, TVP5150_MISC_CTL, val);
 };
 
@@ -452,7 +456,12 @@ static const struct i2c_reg_value tvp515
 	},{	/* Automatic offset and AGC enabled */
 		TVP5150_ANAL_CHL_CTL, 0x15
 	},{	/* Activate YCrCb output 0x9 or 0xd ? */
-		TVP5150_MISC_CTL, 0x6f
+		TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
+				  TVP5150_MISC_CTL_INTREQ_OE |
+				  TVP5150_MISC_CTL_YCBCR_OE |
+				  TVP5150_MISC_CTL_SYNC_OE |
+				  TVP5150_MISC_CTL_VBLANK |
+				  TVP5150_MISC_CTL_CLOCK_OE,
 	},{	/* Activates video std autodetection for all standards */
 		TVP5150_AUTOSW_MSK, 0x0
 	},{	/* Default format: 0x47. For 4:2:2: 0x40 */
@@ -815,6 +824,7 @@ static int tvp5150_s_ctrl(struct v4l2_ct
 		return 0;
 	case V4L2_CID_HUE:
 		tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->val);
+		break;
 	case V4L2_CID_TEST_PATTERN:
 		decoder->enable = ctrl->val ? false : true;
 		tvp5150_selmux(sd);
@@ -857,8 +867,6 @@ static int tvp5150_fill_fmt(struct v4l2_
 
 	f = &format->format;
 
-	tvp5150_reset(sd, 0);
-
 	f->width = decoder->rect.width;
 	f->height = decoder->rect.height / 2;
 
@@ -1047,21 +1055,27 @@ static const struct media_entity_operati
 static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
 {
 	struct tvp5150 *decoder = to_tvp5150(sd);
-	/* Output format: 8-bit ITU-R BT.656 with embedded syncs */
-	int val = 0x09;
+	int val;
 
-	/* Output format: 8-bit 4:2:2 YUV with discrete sync */
-	if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
-		val = 0x0d;
+	/* Enable or disable the video output signals. */
+	val = tvp5150_read(sd, TVP5150_MISC_CTL);
+	if (val < 0)
+		return val;
 
-	/* Initializes TVP5150 to its default values */
-	/* # set PCLK (27MHz) */
-	tvp5150_write(sd, TVP5150_CONF_SHARED_PIN, 0x00);
+	val &= ~(TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
+		 TVP5150_MISC_CTL_CLOCK_OE);
 
-	if (enable)
-		tvp5150_write(sd, TVP5150_MISC_CTL, val);
-	else
-		tvp5150_write(sd, TVP5150_MISC_CTL, 0x00);
+	if (enable) {
+		/*
+		 * Enable the YCbCr and clock outputs. In discrete sync mode
+		 * (non-BT.656) additionally enable the the sync outputs.
+		 */
+		val |= TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_CLOCK_OE;
+		if (decoder->mbus_type == V4L2_MBUS_PARALLEL)
+			val |= TVP5150_MISC_CTL_SYNC_OE;
+	}
+
+	tvp5150_write(sd, TVP5150_MISC_CTL, val);
 
 	return 0;
 }
@@ -1520,7 +1534,6 @@ static int tvp5150_probe(struct i2c_clie
 		res = core->hdl.error;
 		goto err;
 	}
-	v4l2_ctrl_handler_setup(&core->hdl);
 
 	/* Default is no cropping */
 	core->rect.top = 0;
@@ -1531,6 +1544,8 @@ static int tvp5150_probe(struct i2c_clie
 	core->rect.left = 0;
 	core->rect.width = TVP5150_H_MAX;
 
+	tvp5150_reset(sd, 0);	/* Calls v4l2_ctrl_handler_setup() */
+
 	res = v4l2_async_register_subdev(sd);
 	if (res < 0)
 		goto err;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/i2c/tvp5150_reg.h linux-libre-4.9.52-gnu/drivers/media/i2c/tvp5150_reg.h
--- linux-libre-4.9-gnu/drivers/media/i2c/tvp5150_reg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/i2c/tvp5150_reg.h	2017-09-27 08:40:05.000000000 -0400
@@ -9,6 +9,15 @@
 #define TVP5150_ANAL_CHL_CTL         0x01 /* Analog channel controls */
 #define TVP5150_OP_MODE_CTL          0x02 /* Operation mode controls */
 #define TVP5150_MISC_CTL             0x03 /* Miscellaneous controls */
+#define TVP5150_MISC_CTL_VBLK_GPCL	BIT(7)
+#define TVP5150_MISC_CTL_GPCL		BIT(6)
+#define TVP5150_MISC_CTL_INTREQ_OE	BIT(5)
+#define TVP5150_MISC_CTL_HVLK		BIT(4)
+#define TVP5150_MISC_CTL_YCBCR_OE	BIT(3)
+#define TVP5150_MISC_CTL_SYNC_OE	BIT(2)
+#define TVP5150_MISC_CTL_VBLANK		BIT(1)
+#define TVP5150_MISC_CTL_CLOCK_OE	BIT(0)
+
 #define TVP5150_AUTOSW_MSK           0x04 /* Autoswitch mask: TVP5150A / TVP5150AM */
 
 /* Reserved 05h */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/media-device.c linux-libre-4.9.52-gnu/drivers/media/media-device.c
--- linux-libre-4.9-gnu/drivers/media/media-device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/media-device.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,7 +130,7 @@ static long media_device_enum_entities(s
 	 * old range.
 	 */
 	if (ent->function < MEDIA_ENT_F_OLD_BASE ||
-	    ent->function > MEDIA_ENT_T_DEVNODE_UNKNOWN) {
+	    ent->function > MEDIA_ENT_F_TUNER) {
 		if (is_media_entity_v4l2_subdev(ent))
 			entd->type = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
 		else if (ent->function != MEDIA_ENT_F_IO_V4L)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/media-entity.c linux-libre-4.9.52-gnu/drivers/media/media-entity.c
--- linux-libre-4.9-gnu/drivers/media/media-entity.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/media-entity.c	2017-09-27 08:40:05.000000000 -0400
@@ -468,7 +468,7 @@ error:
 
 	while ((entity_err = media_entity_graph_walk_next(graph))) {
 		/* don't let the stream_count go negative */
-		if (entity->stream_count > 0) {
+		if (entity_err->stream_count > 0) {
 			entity_err->stream_count--;
 			if (entity_err->stream_count == 0)
 				entity_err->pipe = NULL;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/pci/cx88/cx88-cards.c linux-libre-4.9.52-gnu/drivers/media/pci/cx88/cx88-cards.c
--- linux-libre-4.9-gnu/drivers/media/pci/cx88/cx88-cards.c	2016-12-11 17:43:41.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/pci/cx88/cx88-cards.c	2017-09-27 14:42:37.000000000 -0400
@@ -3691,7 +3691,14 @@ struct cx88_core *cx88_core_create(struc
 	core->nr = nr;
 	sprintf(core->name, "cx88[%d]", core->nr);
 
-	core->tvnorm = V4L2_STD_NTSC_M;
+	/*
+	 * Note: Setting initial standard here would cause first call to
+	 * cx88_set_tvnorm() to return without programming any registers.  Leave
+	 * it blank for at this point and it will get set later in
+	 * cx8800_initdev()
+	 */
+	core->tvnorm  = 0;
+
 	core->width   = 320;
 	core->height  = 240;
 	core->field   = V4L2_FIELD_INTERLACED;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/pci/cx88/cx88-video.c linux-libre-4.9.52-gnu/drivers/media/pci/cx88/cx88-video.c
--- linux-libre-4.9-gnu/drivers/media/pci/cx88/cx88-video.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/pci/cx88/cx88-video.c	2017-09-27 08:40:05.000000000 -0400
@@ -1422,7 +1422,7 @@ static int cx8800_initdev(struct pci_dev
 
 	/* initial device configuration */
 	mutex_lock(&core->lock);
-	cx88_set_tvnorm(core, core->tvnorm);
+	cx88_set_tvnorm(core, V4L2_STD_NTSC_M);
 	v4l2_ctrl_handler_setup(&core->video_hdl);
 	v4l2_ctrl_handler_setup(&core->audio_hdl);
 	cx88_video_mux(core, 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/pci/dm1105/Kconfig linux-libre-4.9.52-gnu/drivers/media/pci/dm1105/Kconfig
--- linux-libre-4.9-gnu/drivers/media/pci/dm1105/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/pci/dm1105/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -1,6 +1,6 @@
 config DVB_DM1105
 	tristate "SDMC DM1105 based PCI cards"
-	depends on DVB_CORE && PCI && I2C
+	depends on DVB_CORE && PCI && I2C && I2C_ALGOBIT
 	select DVB_PLL if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV0299 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV0288 if MEDIA_SUBDRV_AUTOSELECT
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/pci/saa7134/saa7134-i2c.c linux-libre-4.9.52-gnu/drivers/media/pci/saa7134/saa7134-i2c.c
--- linux-libre-4.9-gnu/drivers/media/pci/saa7134/saa7134-i2c.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/pci/saa7134/saa7134-i2c.c	2017-09-27 08:40:05.000000000 -0400
@@ -355,12 +355,43 @@ static struct i2c_client saa7134_client_
 
 /* ----------------------------------------------------------- */
 
+/* On Medion 7134 reading EEPROM needs DVB-T demod i2c gate open */
+static void saa7134_i2c_eeprom_md7134_gate(struct saa7134_dev *dev)
+{
+	u8 subaddr = 0x7, dmdregval;
+	u8 data[2];
+	int ret;
+	struct i2c_msg i2cgatemsg_r[] = { {.addr = 0x08, .flags = 0,
+					   .buf = &subaddr, .len = 1},
+					  {.addr = 0x08,
+					   .flags = I2C_M_RD,
+					   .buf = &dmdregval, .len = 1}
+					};
+	struct i2c_msg i2cgatemsg_w[] = { {.addr = 0x08, .flags = 0,
+					   .buf = data, .len = 2} };
+
+	ret = i2c_transfer(&dev->i2c_adap, i2cgatemsg_r, 2);
+	if ((ret == 2) && (dmdregval & 0x2)) {
+		pr_debug("%s: DVB-T demod i2c gate was left closed\n",
+			 dev->name);
+
+		data[0] = subaddr;
+		data[1] = (dmdregval & ~0x2);
+		if (i2c_transfer(&dev->i2c_adap, i2cgatemsg_w, 1) != 1)
+			pr_err("%s: EEPROM i2c gate open failure\n",
+			  dev->name);
+	}
+}
+
 static int
 saa7134_i2c_eeprom(struct saa7134_dev *dev, unsigned char *eedata, int len)
 {
 	unsigned char buf;
 	int i,err;
 
+	if (dev->board == SAA7134_BOARD_MD7134)
+		saa7134_i2c_eeprom_md7134_gate(dev);
+
 	dev->i2c_client.addr = 0xa0 >> 1;
 	buf = 0;
 	if (1 != (err = i2c_master_send(&dev->i2c_client,&buf,1))) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/pci/saa7164/saa7164-bus.c linux-libre-4.9.52-gnu/drivers/media/pci/saa7164/saa7164-bus.c
--- linux-libre-4.9-gnu/drivers/media/pci/saa7164/saa7164-bus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/pci/saa7164/saa7164-bus.c	2017-09-27 08:40:05.000000000 -0400
@@ -393,11 +393,11 @@ int saa7164_bus_get(struct saa7164_dev *
 	msg_tmp.size = le16_to_cpu((__force __le16)msg_tmp.size);
 	msg_tmp.command = le32_to_cpu((__force __le32)msg_tmp.command);
 	msg_tmp.controlselector = le16_to_cpu((__force __le16)msg_tmp.controlselector);
+	memcpy(msg, &msg_tmp, sizeof(*msg));
 
 	/* No need to update the read positions, because this was a peek */
 	/* If the caller specifically want to peek, return */
 	if (peekonly) {
-		memcpy(msg, &msg_tmp, sizeof(*msg));
 		goto peekout;
 	}
 
@@ -442,21 +442,15 @@ int saa7164_bus_get(struct saa7164_dev *
 		space_rem = bus->m_dwSizeGetRing - curr_grp;
 
 		if (space_rem < sizeof(*msg)) {
-			/* msg wraps around the ring */
-			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, space_rem);
-			memcpy_fromio((u8 *)msg + space_rem, bus->m_pdwGetRing,
-				sizeof(*msg) - space_rem);
 			if (buf)
 				memcpy_fromio(buf, bus->m_pdwGetRing + sizeof(*msg) -
 					space_rem, buf_size);
 
 		} else if (space_rem == sizeof(*msg)) {
-			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
 			if (buf)
 				memcpy_fromio(buf, bus->m_pdwGetRing, buf_size);
 		} else {
 			/* Additional data wraps around the ring */
-			memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
 			if (buf) {
 				memcpy_fromio(buf, bus->m_pdwGetRing + curr_grp +
 					sizeof(*msg), space_rem - sizeof(*msg));
@@ -469,15 +463,10 @@ int saa7164_bus_get(struct saa7164_dev *
 
 	} else {
 		/* No wrapping */
-		memcpy_fromio(msg, bus->m_pdwGetRing + curr_grp, sizeof(*msg));
 		if (buf)
 			memcpy_fromio(buf, bus->m_pdwGetRing + curr_grp + sizeof(*msg),
 				buf_size);
 	}
-	/* Convert from little endian to CPU */
-	msg->size = le16_to_cpu((__force __le16)msg->size);
-	msg->command = le32_to_cpu((__force __le32)msg->command);
-	msg->controlselector = le16_to_cpu((__force __le16)msg->controlselector);
 
 	/* Update the read positions, adjusting the ring */
 	saa7164_writel(bus->m_dwGetReadPos, new_grp);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/pci/solo6x10/solo6x10.h linux-libre-4.9.52-gnu/drivers/media/pci/solo6x10/solo6x10.h
--- linux-libre-4.9-gnu/drivers/media/pci/solo6x10/solo6x10.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/pci/solo6x10/solo6x10.h	2017-09-27 08:40:05.000000000 -0400
@@ -284,7 +284,10 @@ static inline u32 solo_reg_read(struct s
 static inline void solo_reg_write(struct solo_dev *solo_dev, int reg,
 				  u32 data)
 {
+	u16 val;
+
 	writel(data, solo_dev->reg_base + reg);
+	pci_read_config_word(solo_dev->pdev, PCI_STATUS, &val);
 }
 
 static inline void solo_irq_on(struct solo_dev *dev, u32 mask)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/platform/am437x/am437x-vpfe.c linux-libre-4.9.52-gnu/drivers/media/platform/am437x/am437x-vpfe.c
--- linux-libre-4.9-gnu/drivers/media/platform/am437x/am437x-vpfe.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/platform/am437x/am437x-vpfe.c	2017-09-27 08:40:05.000000000 -0400
@@ -1576,7 +1576,7 @@ static int vpfe_s_fmt(struct file *file,
 		return -EBUSY;
 	}
 
-	ret = vpfe_try_fmt(file, priv, &format);
+	ret = __vpfe_get_format(vpfe, &format, &bpp);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/platform/blackfin/ppi.c linux-libre-4.9.52-gnu/drivers/media/platform/blackfin/ppi.c
--- linux-libre-4.9-gnu/drivers/media/platform/blackfin/ppi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/platform/blackfin/ppi.c	2017-09-27 08:40:05.000000000 -0400
@@ -214,6 +214,8 @@ static int ppi_set_params(struct ppi_if
 	if (params->dlen > 24 || params->dlen <= 0)
 		return -EINVAL;
 	pctrl = devm_pinctrl_get(ppi->dev);
+	if (IS_ERR(pctrl))
+		return PTR_ERR(pctrl);
 	pstate = pinctrl_lookup_state(pctrl,
 				      pin_state[(params->dlen + 7) / 8 - 1]);
 	if (pinctrl_select_state(pctrl, pstate))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/platform/davinci/vpfe_capture.c linux-libre-4.9.52-gnu/drivers/media/platform/davinci/vpfe_capture.c
--- linux-libre-4.9-gnu/drivers/media/platform/davinci/vpfe_capture.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/platform/davinci/vpfe_capture.c	2017-09-27 08:40:05.000000000 -0400
@@ -1725,27 +1725,9 @@ static long vpfe_param_handler(struct fi
 
 	switch (cmd) {
 	case VPFE_CMD_S_CCDC_RAW_PARAMS:
+		ret = -EINVAL;
 		v4l2_warn(&vpfe_dev->v4l2_dev,
-			  "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n");
-		if (ccdc_dev->hw_ops.set_params) {
-			ret = ccdc_dev->hw_ops.set_params(param);
-			if (ret) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Error setting parameters in CCDC\n");
-				goto unlock_out;
-			}
-			ret = vpfe_get_ccdc_image_format(vpfe_dev,
-							 &vpfe_dev->fmt);
-			if (ret < 0) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Invalid image format at CCDC\n");
-				goto unlock_out;
-			}
-		} else {
-			ret = -EINVAL;
-			v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-				"VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
-		}
+			"VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
 		break;
 	default:
 		ret = -ENOTTY;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/platform/Kconfig linux-libre-4.9.52-gnu/drivers/media/platform/Kconfig
--- linux-libre-4.9-gnu/drivers/media/platform/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/platform/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -93,7 +93,7 @@ config VIDEO_OMAP3_DEBUG
 
 config VIDEO_PXA27x
 	tristate "PXA27x Quick Capture Interface driver"
-	depends on VIDEO_DEV && HAS_DMA
+	depends on VIDEO_DEV && VIDEO_V4L2 && HAS_DMA
 	depends on PXA27x || COMPILE_TEST
 	select VIDEOBUF2_DMA_SG
 	select SG_SPLIT
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c linux-libre-4.9.52-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c
--- linux-libre-4.9-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/platform/s5p-jpeg/jpeg-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1099,10 +1099,10 @@ static bool s5p_jpeg_parse_hdr(struct s5
 			       struct s5p_jpeg_ctx *ctx)
 {
 	int c, components = 0, notfound, n_dht = 0, n_dqt = 0;
-	unsigned int height, width, word, subsampling = 0, sos = 0, sof = 0,
-		     sof_len = 0;
-	unsigned int dht[S5P_JPEG_MAX_MARKER], dht_len[S5P_JPEG_MAX_MARKER],
-		     dqt[S5P_JPEG_MAX_MARKER], dqt_len[S5P_JPEG_MAX_MARKER];
+	unsigned int height = 0, width = 0, word, subsampling = 0;
+	unsigned int sos = 0, sof = 0, sof_len = 0;
+	unsigned int dht[S5P_JPEG_MAX_MARKER], dht_len[S5P_JPEG_MAX_MARKER];
+	unsigned int dqt[S5P_JPEG_MAX_MARKER], dqt_len[S5P_JPEG_MAX_MARKER];
 	long length;
 	struct s5p_jpeg_buffer jpeg_buffer;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c linux-libre-4.9.52-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c
--- linux-libre-4.9-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2016-12-11 17:48:24.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2017-09-27 14:52:05.000000000 -0400
@@ -206,6 +206,7 @@ static void s5p_mfc_watchdog_worker(stru
 		}
 		s5p_mfc_clock_on();
 		ret = s5p_mfc_init_hw(dev);
+		s5p_mfc_clock_off();
 		if (ret)
 			mfc_err("Failed to reinit FW\n");
 	}
@@ -663,9 +664,9 @@ static irqreturn_t s5p_mfc_irq(int irq,
 				break;
 			}
 			s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
-			wake_up_ctx(ctx, reason, err);
 			WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
 			s5p_mfc_clock_off();
+			wake_up_ctx(ctx, reason, err);
 			s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 		} else {
 			s5p_mfc_handle_frame(ctx, reason, err);
@@ -679,15 +680,11 @@ static irqreturn_t s5p_mfc_irq(int irq,
 	case S5P_MFC_R2H_CMD_OPEN_INSTANCE_RET:
 		ctx->inst_no = s5p_mfc_hw_call(dev->mfc_ops, get_inst_no, dev);
 		ctx->state = MFCINST_GOT_INST;
-		clear_work_bit(ctx);
-		wake_up(&ctx->queue);
 		goto irq_cleanup_hw;
 
 	case S5P_MFC_R2H_CMD_CLOSE_INSTANCE_RET:
-		clear_work_bit(ctx);
 		ctx->inst_no = MFC_NO_INSTANCE_SET;
 		ctx->state = MFCINST_FREE;
-		wake_up(&ctx->queue);
 		goto irq_cleanup_hw;
 
 	case S5P_MFC_R2H_CMD_SYS_INIT_RET:
@@ -697,9 +694,9 @@ static irqreturn_t s5p_mfc_irq(int irq,
 		if (ctx)
 			clear_work_bit(ctx);
 		s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
-		wake_up_dev(dev, reason, err);
 		clear_bit(0, &dev->hw_lock);
 		clear_bit(0, &dev->enter_suspend);
+		wake_up_dev(dev, reason, err);
 		break;
 
 	case S5P_MFC_R2H_CMD_INIT_BUFFERS_RET:
@@ -714,9 +711,7 @@ static irqreturn_t s5p_mfc_irq(int irq,
 		break;
 
 	case S5P_MFC_R2H_CMD_DPB_FLUSH_RET:
-		clear_work_bit(ctx);
 		ctx->state = MFCINST_RUNNING;
-		wake_up(&ctx->queue);
 		goto irq_cleanup_hw;
 
 	default:
@@ -735,6 +730,8 @@ irq_cleanup_hw:
 		mfc_err("Failed to unlock hw\n");
 
 	s5p_mfc_clock_off();
+	clear_work_bit(ctx);
+	wake_up(&ctx->queue);
 
 	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 	spin_unlock(&dev->irqlock);
@@ -926,10 +923,11 @@ static int s5p_mfc_release(struct file *
 	mfc_debug_enter();
 	if (dev)
 		mutex_lock(&dev->mfc_mutex);
-	s5p_mfc_clock_on();
 	vb2_queue_release(&ctx->vq_src);
 	vb2_queue_release(&ctx->vq_dst);
 	if (dev) {
+		s5p_mfc_clock_on();
+
 		/* Mark context as idle */
 		clear_work_bit_irqsave(ctx);
 		/*
@@ -951,9 +949,9 @@ static int s5p_mfc_release(struct file *
 			if (s5p_mfc_power_off() < 0)
 				mfc_err("Power off failed\n");
 		}
+		mfc_debug(2, "Shutting down clock\n");
+		s5p_mfc_clock_off();
 	}
-	mfc_debug(2, "Shutting down clock\n");
-	s5p_mfc_clock_off();
 	if (dev)
 		dev->ctx[ctx->num] = NULL;
 	s5p_mfc_dec_ctrls_delete(ctx);
@@ -1082,6 +1080,7 @@ static struct device *s5p_mfc_alloc_memd
 							 idx);
 		if (ret == 0)
 			return child;
+		device_del(child);
 	}
 
 	put_device(child);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/platform/sti/hva/hva-hw.c linux-libre-4.9.52-gnu/drivers/media/platform/sti/hva/hva-hw.c
--- linux-libre-4.9-gnu/drivers/media/platform/sti/hva/hva-hw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/platform/sti/hva/hva-hw.c	2017-09-27 08:40:05.000000000 -0400
@@ -305,16 +305,16 @@ int hva_hw_probe(struct platform_device
 	/* get memory for registers */
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	hva->regs = devm_ioremap_resource(dev, regs);
-	if (IS_ERR_OR_NULL(hva->regs)) {
+	if (IS_ERR(hva->regs)) {
 		dev_err(dev, "%s     failed to get regs\n", HVA_PREFIX);
 		return PTR_ERR(hva->regs);
 	}
 
 	/* get memory for esram */
 	esram = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (IS_ERR_OR_NULL(esram)) {
+	if (!esram) {
 		dev_err(dev, "%s     failed to get esram\n", HVA_PREFIX);
-		return PTR_ERR(esram);
+		return -ENODEV;
 	}
 	hva->esram_addr = esram->start;
 	hva->esram_size = resource_size(esram);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/rc/imon.c linux-libre-4.9.52-gnu/drivers/media/rc/imon.c
--- linux-libre-4.9-gnu/drivers/media/rc/imon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/rc/imon.c	2017-09-27 08:40:05.000000000 -0400
@@ -1629,7 +1629,7 @@ static void imon_incoming_packet(struct
 	if (kc == KEY_KEYBOARD && !ictx->release_code) {
 		ictx->last_keycode = kc;
 		if (!nomouse) {
-			ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1;
+			ictx->pad_mouse = !ictx->pad_mouse;
 			dev_dbg(dev, "toggling to %s mode\n",
 				ictx->pad_mouse ? "mouse" : "keyboard");
 			spin_unlock_irqrestore(&ictx->kc_lock, flags);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/rc/ir-lirc-codec.c linux-libre-4.9.52-gnu/drivers/media/rc/ir-lirc-codec.c
--- linux-libre-4.9-gnu/drivers/media/rc/ir-lirc-codec.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/rc/ir-lirc-codec.c	2017-09-27 08:40:05.000000000 -0400
@@ -254,7 +254,7 @@ static long ir_lirc_ioctl(struct file *f
 		return 0;
 
 	case LIRC_GET_REC_RESOLUTION:
-		val = dev->rx_resolution;
+		val = dev->rx_resolution / 1000;
 		break;
 
 	case LIRC_SET_WIDEBAND_RECEIVER:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/rc/ite-cir.c linux-libre-4.9.52-gnu/drivers/media/rc/ite-cir.c
--- linux-libre-4.9-gnu/drivers/media/rc/ite-cir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/rc/ite-cir.c	2017-09-27 08:40:05.000000000 -0400
@@ -263,6 +263,8 @@ static void ite_set_carrier_params(struc
 
 			if (allowance > ITE_RXDCR_MAX)
 				allowance = ITE_RXDCR_MAX;
+
+			use_demodulator = true;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/rc/lirc_dev.c linux-libre-4.9.52-gnu/drivers/media/rc/lirc_dev.c
--- linux-libre-4.9-gnu/drivers/media/rc/lirc_dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/rc/lirc_dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -589,7 +589,7 @@ long lirc_dev_fop_ioctl(struct file *fil
 		result = put_user(ir->d.features, (__u32 __user *)arg);
 		break;
 	case LIRC_GET_REC_MODE:
-		if (LIRC_CAN_REC(ir->d.features)) {
+		if (!LIRC_CAN_REC(ir->d.features)) {
 			result = -ENOTTY;
 			break;
 		}
@@ -599,7 +599,7 @@ long lirc_dev_fop_ioctl(struct file *fil
 				  (__u32 __user *)arg);
 		break;
 	case LIRC_SET_REC_MODE:
-		if (LIRC_CAN_REC(ir->d.features)) {
+		if (!LIRC_CAN_REC(ir->d.features)) {
 			result = -ENOTTY;
 			break;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/rc/mceusb.c linux-libre-4.9.52-gnu/drivers/media/rc/mceusb.c
--- linux-libre-4.9-gnu/drivers/media/rc/mceusb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/rc/mceusb.c	2017-09-27 08:40:05.000000000 -0400
@@ -1332,8 +1332,8 @@ static int mceusb_dev_probe(struct usb_i
 			}
 		}
 	}
-	if (ep_in == NULL) {
-		dev_dbg(&intf->dev, "inbound and/or endpoint not found");
+	if (!ep_in || !ep_out) {
+		dev_dbg(&intf->dev, "required endpoints not found\n");
 		return -ENODEV;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/rc/rc-main.c linux-libre-4.9.52-gnu/drivers/media/rc/rc-main.c
--- linux-libre-4.9-gnu/drivers/media/rc/rc-main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/rc/rc-main.c	2017-09-27 08:40:05.000000000 -0400
@@ -1411,6 +1411,7 @@ int rc_register_device(struct rc_dev *de
 	int attr = 0;
 	int minor;
 	int rc;
+	u64 rc_type;
 
 	if (!dev || !dev->map_name)
 		return -EINVAL;
@@ -1496,14 +1497,18 @@ int rc_register_device(struct rc_dev *de
 			goto out_input;
 	}
 
+	rc_type = BIT_ULL(rc_map->rc_type);
+
 	if (dev->change_protocol) {
-		u64 rc_type = (1ll << rc_map->rc_type);
 		rc = dev->change_protocol(dev, &rc_type);
 		if (rc < 0)
 			goto out_raw;
 		dev->enabled_protocols = rc_type;
 	}
 
+	if (dev->driver_type == RC_DRIVER_IR_RAW)
+		ir_raw_load_modules(&rc_type);
+
 	/* Allow the RC sysfs nodes to be accessible */
 	atomic_set(&dev->initialized, 1);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/spi/gs1662.c linux-libre-4.9.52-gnu/drivers/media/spi/gs1662.c
--- linux-libre-4.9-gnu/drivers/media/spi/gs1662.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/spi/gs1662.c	2017-09-27 08:40:05.000000000 -0400
@@ -453,10 +453,9 @@ static int gs_probe(struct spi_device *s
 static int gs_remove(struct spi_device *spi)
 {
 	struct v4l2_subdev *sd = spi_get_drvdata(spi);
-	struct gs *gs = to_gs(sd);
 
 	v4l2_device_unregister_subdev(sd);
-	kfree(gs);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c linux-libre-4.9.52-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c
--- linux-libre-4.9-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/cx231xx/cx231xx-audio.c	2017-09-27 08:40:05.000000000 -0400
@@ -674,10 +674,8 @@ static int cx231xx_audio_init(struct cx2
 
 	spin_lock_init(&adev->slock);
 	err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto err_free_card;
 
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
 			&snd_cx231xx_pcm_capture);
@@ -691,10 +689,9 @@ static int cx231xx_audio_init(struct cx2
 	INIT_WORK(&dev->wq_trigger, audio_trigger);
 
 	err = snd_card_register(card);
-	if (err < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if (err < 0)
+		goto err_free_card;
+
 	adev->sndcard = card;
 	adev->udev = dev->udev;
 
@@ -704,6 +701,11 @@ static int cx231xx_audio_init(struct cx2
 					    hs_config_info[0].interface_info.
 					    audio_index + 1];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) {
+		err = -ENODEV;
+		goto err_free_card;
+	}
+
 	adev->end_point_addr =
 	    uif->altsetting[0].endpoint[isoc_pipe].desc.
 			bEndpointAddress;
@@ -713,13 +715,20 @@ static int cx231xx_audio_init(struct cx2
 		"audio EndPoint Addr 0x%x, Alternate settings: %i\n",
 		adev->end_point_addr, adev->num_alt);
 	adev->alt_max_pkt_size = kmalloc(32 * adev->num_alt, GFP_KERNEL);
-
-	if (adev->alt_max_pkt_size == NULL)
-		return -ENOMEM;
+	if (!adev->alt_max_pkt_size) {
+		err = -ENOMEM;
+		goto err_free_card;
+	}
 
 	for (i = 0; i < adev->num_alt; i++) {
-		u16 tmp =
-		    le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) {
+			err = -ENODEV;
+			goto err_free_pkt_size;
+		}
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.
 				wMaxPacketSize);
 		adev->alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
@@ -729,6 +738,13 @@ static int cx231xx_audio_init(struct cx2
 	}
 
 	return 0;
+
+err_free_pkt_size:
+	kfree(adev->alt_max_pkt_size);
+err_free_card:
+	snd_card_free(card);
+
+	return err;
 }
 
 static int cx231xx_audio_fini(struct cx231xx *dev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c linux-libre-4.9.52-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c
--- linux-libre-4.9-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c	2016-12-11 17:43:50.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/cx231xx/cx231xx-cards.c	2017-09-27 14:42:53.000000000 -0400
@@ -1397,6 +1397,9 @@ static int cx231xx_init_v4l2(struct cx23
 
 	uif = udev->actconfig->interface[idx];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1)
+		return -ENODEV;
+
 	dev->video_mode.end_point_addr = uif->altsetting[0].endpoint[isoc_pipe].desc.bEndpointAddress;
 	dev->video_mode.num_alt = uif->num_altsetting;
 
@@ -1410,7 +1413,12 @@ static int cx231xx_init_v4l2(struct cx23
 		return -ENOMEM;
 
 	for (i = 0; i < dev->video_mode.num_alt; i++) {
-		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.wMaxPacketSize);
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1)
+			return -ENODEV;
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.wMaxPacketSize);
 		dev->video_mode.alt_max_pkt_size[i] = (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
 		dev_dbg(dev->dev,
 			"Alternate setting %i, max size= %i\n", i,
@@ -1427,6 +1435,9 @@ static int cx231xx_init_v4l2(struct cx23
 	}
 	uif = udev->actconfig->interface[idx];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1)
+		return -ENODEV;
+
 	dev->vbi_mode.end_point_addr =
 	    uif->altsetting[0].endpoint[isoc_pipe].desc.
 			bEndpointAddress;
@@ -1443,8 +1454,12 @@ static int cx231xx_init_v4l2(struct cx23
 		return -ENOMEM;
 
 	for (i = 0; i < dev->vbi_mode.num_alt; i++) {
-		u16 tmp =
-		    le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1)
+			return -ENODEV;
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 				desc.wMaxPacketSize);
 		dev->vbi_mode.alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
@@ -1464,6 +1479,9 @@ static int cx231xx_init_v4l2(struct cx23
 	}
 	uif = udev->actconfig->interface[idx];
 
+	if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1)
+		return -ENODEV;
+
 	dev->sliced_cc_mode.end_point_addr =
 	    uif->altsetting[0].endpoint[isoc_pipe].desc.
 			bEndpointAddress;
@@ -1478,7 +1496,12 @@ static int cx231xx_init_v4l2(struct cx23
 		return -ENOMEM;
 
 	for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
-		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1)
+			return -ENODEV;
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
 				desc.wMaxPacketSize);
 		dev->sliced_cc_mode.alt_max_pkt_size[i] =
 		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
@@ -1647,6 +1670,11 @@ static int cx231xx_usb_probe(struct usb_
 		}
 		uif = udev->actconfig->interface[idx];
 
+		if (uif->altsetting[0].desc.bNumEndpoints < isoc_pipe + 1) {
+			retval = -ENODEV;
+			goto err_video_alt;
+		}
+
 		dev->ts1_mode.end_point_addr =
 		    uif->altsetting[0].endpoint[isoc_pipe].
 				desc.bEndpointAddress;
@@ -1664,7 +1692,14 @@ static int cx231xx_usb_probe(struct usb_
 		}
 
 		for (i = 0; i < dev->ts1_mode.num_alt; i++) {
-			u16 tmp = le16_to_cpu(uif->altsetting[i].
+			u16 tmp;
+
+			if (uif->altsetting[i].desc.bNumEndpoints < isoc_pipe + 1) {
+				retval = -ENODEV;
+				goto err_video_alt;
+			}
+
+			tmp = le16_to_cpu(uif->altsetting[i].
 						endpoint[isoc_pipe].desc.
 						wMaxPacketSize);
 			dev->ts1_mode.alt_max_pkt_size[i] =
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/cxusb.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/cxusb.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/cxusb.c	2016-12-11 17:44:21.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/cxusb.c	2017-09-27 14:43:51.000000000 -0400
@@ -59,23 +59,24 @@ static int cxusb_ctrl_msg(struct dvb_usb
 			  u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
 {
 	struct cxusb_state *st = d->priv;
-	int ret, wo;
+	int ret;
 
 	if (1 + wlen > MAX_XFER_SIZE) {
 		warn("i2c wr: len=%d is too big!\n", wlen);
 		return -EOPNOTSUPP;
 	}
 
-	wo = (rbuf == NULL || rlen == 0); /* write-only */
+	if (rlen > MAX_XFER_SIZE) {
+		warn("i2c rd: len=%d is too big!\n", rlen);
+		return -EOPNOTSUPP;
+	}
 
 	mutex_lock(&d->data_mutex);
 	st->data[0] = cmd;
 	memcpy(&st->data[1], wbuf, wlen);
-	if (wo)
-		ret = dvb_usb_generic_write(d, st->data, 1 + wlen);
-	else
-		ret = dvb_usb_generic_rw(d, st->data, 1 + wlen,
-					 rbuf, rlen, 0);
+	ret = dvb_usb_generic_rw(d, st->data, 1 + wlen, st->data, rlen, 0);
+	if (!ret && rbuf && rlen)
+		memcpy(rbuf, st->data, rlen);
 
 	mutex_unlock(&d->data_mutex);
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dib0700_core.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dib0700_core.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dib0700_core.c	2016-12-11 17:44:29.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dib0700_core.c	2017-09-27 14:44:06.000000000 -0400
@@ -812,6 +812,9 @@ int dib0700_rc_setup(struct dvb_usb_devi
 
 	/* Starting in firmware 1.20, the RC info is provided on a bulk pipe */
 
+	if (intf->altsetting[0].desc.bNumEndpoints < rc_ep + 1)
+		return -ENODEV;
+
 	purb = usb_alloc_urb(0, GFP_KERNEL);
 	if (purb == NULL)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dibusb-common.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dibusb-common.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dibusb-common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dibusb-common.c	2017-09-27 08:40:05.000000000 -0400
@@ -382,9 +382,9 @@ int dibusb_rc_query(struct dvb_usb_devic
 	if (buf[0] != 0)
 		deb_info("key: %*ph\n", 5, buf);
 
+ret:
 	kfree(buf);
 
-ret:
 	return ret;
 }
 EXPORT_SYMBOL(dibusb_rc_query);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dibusb-mc-common.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dibusb-mc-common.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dibusb-mc-common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dibusb-mc-common.c	2017-09-27 08:40:05.000000000 -0400
@@ -12,6 +12,8 @@
 #include <linux/kconfig.h>
 #include "dibusb.h"
 
+MODULE_LICENSE("GPL");
+
 /* 3000MC/P stuff */
 // Config Adjacent channels  Perf -cal22
 static struct dibx000_agc_config dib3000p_mt2060_agc_config = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/digitv.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/digitv.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/digitv.c	2016-12-11 17:44:36.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/digitv.c	2017-09-27 14:44:22.000000000 -0400
@@ -33,6 +33,9 @@ static int digitv_ctrl_msg(struct dvb_us
 
 	wo = (rbuf == NULL || rlen == 0); /* write-only */
 
+	if (wlen > 4 || rlen > 4)
+		return -EIO;
+
 	memset(st->sndbuf, 0, 7);
 	memset(st->rcvbuf, 0, 7);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c	2016-12-11 17:43:53.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dvb-usb-firmware.c	2017-09-27 14:42:58.000000000 -0400
@@ -35,42 +35,51 @@ static int usb_cypress_writemem(struct u
 
 int usb_cypress_load_firmware(struct usb_device *udev, const struct firmware *fw, int type)
 {
-	struct hexline hx;
-	u8 reset;
-	int ret,pos=0;
+	struct hexline *hx;
+	u8 *buf;
+	int ret, pos = 0;
+	u16 cpu_cs_register = cypress[type].cpu_cs_register;
+
+	buf = kmalloc(sizeof(*hx), GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+	hx = (struct hexline *)buf;
 
 	/* stop the CPU */
-	reset = 1;
-	if ((ret = usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1)) != 1)
+	buf[0] = 1;
+	if (usb_cypress_writemem(udev, cpu_cs_register, buf, 1) != 1)
 		err("could not stop the USB controller CPU.");
 
-	while ((ret = dvb_usb_get_hexline(fw,&hx,&pos)) > 0) {
-		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n",hx.addr,hx.len,hx.chk);
-		ret = usb_cypress_writemem(udev,hx.addr,hx.data,hx.len);
+	while ((ret = dvb_usb_get_hexline(fw, hx, &pos)) > 0) {
+		deb_fw("writing to address 0x%04x (buffer: 0x%02x %02x)\n", hx->addr, hx->len, hx->chk);
+		ret = usb_cypress_writemem(udev, hx->addr, hx->data, hx->len);
 
-		if (ret != hx.len) {
+		if (ret != hx->len) {
 			err("error while transferring firmware "
 				"(transferred size: %d, block size: %d)",
-				ret,hx.len);
+				ret, hx->len);
 			ret = -EINVAL;
 			break;
 		}
 	}
 	if (ret < 0) {
 		err("firmware download failed at %d with %d",pos,ret);
+		kfree(buf);
 		return ret;
 	}
 
 	if (ret == 0) {
 		/* restart the CPU */
-		reset = 0;
-		if (ret || usb_cypress_writemem(udev,cypress[type].cpu_cs_register,&reset,1) != 1) {
+		buf[0] = 0;
+		if (usb_cypress_writemem(udev, cpu_cs_register, buf, 1) != 1) {
 			err("could not restart the USB controller CPU.");
 			ret = -EINVAL;
 		}
 	} else
 		ret = -EIO;
 
+	kfree(buf);
+
 	return ret;
 }
 EXPORT_SYMBOL(usb_cypress_load_firmware);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dw2102.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dw2102.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/dw2102.c	2016-12-11 17:44:42.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/dw2102.c	2017-09-27 14:44:34.000000000 -0400
@@ -68,6 +68,7 @@
 struct dw2102_state {
 	u8 initialized;
 	u8 last_lock;
+	u8 data[MAX_XFER_SIZE + 4];
 	struct i2c_client *i2c_client_demod;
 	struct i2c_client *i2c_client_tuner;
 
@@ -204,6 +205,20 @@ static int dw2102_serit_i2c_transfer(str
 
 	switch (num) {
 	case 2:
+		if (msg[0].len != 1) {
+			warn("i2c rd: len=%d is not 1!\n",
+			     msg[0].len);
+			num = -EOPNOTSUPP;
+			break;
+		}
+
+		if (2 + msg[1].len > sizeof(buf6)) {
+			warn("i2c rd: len=%d is too big!\n",
+			     msg[1].len);
+			num = -EOPNOTSUPP;
+			break;
+		}
+
 		/* read si2109 register by number */
 		buf6[0] = msg[0].addr << 1;
 		buf6[1] = msg[0].len;
@@ -219,6 +234,13 @@ static int dw2102_serit_i2c_transfer(str
 	case 1:
 		switch (msg[0].addr) {
 		case 0x68:
+			if (2 + msg[0].len > sizeof(buf6)) {
+				warn("i2c wr: len=%d is too big!\n",
+				     msg[0].len);
+				num = -EOPNOTSUPP;
+				break;
+			}
+
 			/* write to si2109 register */
 			buf6[0] = msg[0].addr << 1;
 			buf6[1] = msg[0].len;
@@ -262,6 +284,13 @@ static int dw2102_earda_i2c_transfer(str
 		/* first write first register number */
 		u8 ibuf[MAX_XFER_SIZE], obuf[3];
 
+		if (2 + msg[0].len != sizeof(obuf)) {
+			warn("i2c rd: len=%d is not 1!\n",
+			     msg[0].len);
+			ret = -EOPNOTSUPP;
+			goto unlock;
+		}
+
 		if (2 + msg[1].len > sizeof(ibuf)) {
 			warn("i2c rd: len=%d is too big!\n",
 			     msg[1].len);
@@ -462,6 +491,12 @@ static int dw3101_i2c_transfer(struct i2
 		/* first write first register number */
 		u8 ibuf[MAX_XFER_SIZE], obuf[3];
 
+		if (2 + msg[0].len != sizeof(obuf)) {
+			warn("i2c rd: len=%d is not 1!\n",
+			     msg[0].len);
+			ret = -EOPNOTSUPP;
+			goto unlock;
+		}
 		if (2 + msg[1].len > sizeof(ibuf)) {
 			warn("i2c rd: len=%d is too big!\n",
 			     msg[1].len);
@@ -662,62 +697,92 @@ static int su3000_i2c_transfer(struct i2
 								int num)
 {
 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
-	u8 obuf[0x40], ibuf[0x40];
+	struct dw2102_state *state;
 
 	if (!d)
 		return -ENODEV;
+
+	state = d->priv;
+
 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 		return -EAGAIN;
+	if (mutex_lock_interruptible(&d->data_mutex) < 0) {
+		mutex_unlock(&d->i2c_mutex);
+		return -EAGAIN;
+	}
 
 	switch (num) {
 	case 1:
 		switch (msg[0].addr) {
 		case SU3000_STREAM_CTRL:
-			obuf[0] = msg[0].buf[0] + 0x36;
-			obuf[1] = 3;
-			obuf[2] = 0;
-			if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 0, 0) < 0)
+			state->data[0] = msg[0].buf[0] + 0x36;
+			state->data[1] = 3;
+			state->data[2] = 0;
+			if (dvb_usb_generic_rw(d, state->data, 3,
+					state->data, 0, 0) < 0)
 				err("i2c transfer failed.");
 			break;
 		case DW2102_RC_QUERY:
-			obuf[0] = 0x10;
-			if (dvb_usb_generic_rw(d, obuf, 1, ibuf, 2, 0) < 0)
+			state->data[0] = 0x10;
+			if (dvb_usb_generic_rw(d, state->data, 1,
+					state->data, 2, 0) < 0)
 				err("i2c transfer failed.");
-			msg[0].buf[1] = ibuf[0];
-			msg[0].buf[0] = ibuf[1];
+			msg[0].buf[1] = state->data[0];
+			msg[0].buf[0] = state->data[1];
 			break;
 		default:
+			if (3 + msg[0].len > sizeof(state->data)) {
+				warn("i2c wr: len=%d is too big!\n",
+				     msg[0].len);
+				num = -EOPNOTSUPP;
+				break;
+			}
+
 			/* always i2c write*/
-			obuf[0] = 0x08;
-			obuf[1] = msg[0].addr;
-			obuf[2] = msg[0].len;
+			state->data[0] = 0x08;
+			state->data[1] = msg[0].addr;
+			state->data[2] = msg[0].len;
 
-			memcpy(&obuf[3], msg[0].buf, msg[0].len);
+			memcpy(&state->data[3], msg[0].buf, msg[0].len);
 
-			if (dvb_usb_generic_rw(d, obuf, msg[0].len + 3,
-						ibuf, 1, 0) < 0)
+			if (dvb_usb_generic_rw(d, state->data, msg[0].len + 3,
+						state->data, 1, 0) < 0)
 				err("i2c transfer failed.");
 
 		}
 		break;
 	case 2:
 		/* always i2c read */
-		obuf[0] = 0x09;
-		obuf[1] = msg[0].len;
-		obuf[2] = msg[1].len;
-		obuf[3] = msg[0].addr;
-		memcpy(&obuf[4], msg[0].buf, msg[0].len);
+		if (4 + msg[0].len > sizeof(state->data)) {
+			warn("i2c rd: len=%d is too big!\n",
+			     msg[0].len);
+			num = -EOPNOTSUPP;
+			break;
+		}
+		if (1 + msg[1].len > sizeof(state->data)) {
+			warn("i2c rd: len=%d is too big!\n",
+			     msg[1].len);
+			num = -EOPNOTSUPP;
+			break;
+		}
 
-		if (dvb_usb_generic_rw(d, obuf, msg[0].len + 4,
-					ibuf, msg[1].len + 1, 0) < 0)
+		state->data[0] = 0x09;
+		state->data[1] = msg[0].len;
+		state->data[2] = msg[1].len;
+		state->data[3] = msg[0].addr;
+		memcpy(&state->data[4], msg[0].buf, msg[0].len);
+
+		if (dvb_usb_generic_rw(d, state->data, msg[0].len + 4,
+					state->data, msg[1].len + 1, 0) < 0)
 			err("i2c transfer failed.");
 
-		memcpy(msg[1].buf, &ibuf[1], msg[1].len);
+		memcpy(msg[1].buf, &state->data[1], msg[1].len);
 		break;
 	default:
 		warn("more than 2 i2c messages at a time is not handled yet.");
 		break;
 	}
+	mutex_unlock(&d->data_mutex);
 	mutex_unlock(&d->i2c_mutex);
 	return num;
 }
@@ -845,17 +910,23 @@ static int su3000_streaming_ctrl(struct
 static int su3000_power_ctrl(struct dvb_usb_device *d, int i)
 {
 	struct dw2102_state *state = (struct dw2102_state *)d->priv;
-	u8 obuf[] = {0xde, 0};
+	int ret = 0;
 
 	info("%s: %d, initialized %d", __func__, i, state->initialized);
 
 	if (i && !state->initialized) {
+		mutex_lock(&d->data_mutex);
+
+		state->data[0] = 0xde;
+		state->data[1] = 0;
+
 		state->initialized = 1;
 		/* reset board */
-		return dvb_usb_generic_rw(d, obuf, 2, NULL, 0, 0);
+		ret = dvb_usb_generic_rw(d, state->data, 2, NULL, 0, 0);
+		mutex_unlock(&d->data_mutex);
 	}
 
-	return 0;
+	return ret;
 }
 
 static int su3000_read_mac_address(struct dvb_usb_device *d, u8 mac[6])
@@ -1310,49 +1381,57 @@ static int prof_7500_frontend_attach(str
 	return 0;
 }
 
-static int su3000_frontend_attach(struct dvb_usb_adapter *d)
+static int su3000_frontend_attach(struct dvb_usb_adapter *adap)
 {
-	u8 obuf[3] = { 0xe, 0x80, 0 };
-	u8 ibuf[] = { 0 };
+	struct dvb_usb_device *d = adap->dev;
+	struct dw2102_state *state = d->priv;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	mutex_lock(&d->data_mutex);
+
+	state->data[0] = 0xe;
+	state->data[1] = 0x80;
+	state->data[2] = 0;
+
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x02;
-	obuf[2] = 1;
+	state->data[0] = 0xe;
+	state->data[1] = 0x02;
+	state->data[2] = 1;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 	msleep(300);
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x83;
-	obuf[2] = 0;
+	state->data[0] = 0xe;
+	state->data[1] = 0x83;
+	state->data[2] = 0;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x83;
-	obuf[2] = 1;
+	state->data[0] = 0xe;
+	state->data[1] = 0x83;
+	state->data[2] = 1;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0x51;
+	state->data[0] = 0x51;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
 		err("command 0x51 transfer failed.");
 
-	d->fe_adap[0].fe = dvb_attach(ds3000_attach, &su3000_ds3000_config,
-					&d->dev->i2c_adap);
-	if (d->fe_adap[0].fe == NULL)
+	mutex_unlock(&d->data_mutex);
+
+	adap->fe_adap[0].fe = dvb_attach(ds3000_attach, &su3000_ds3000_config,
+					&d->i2c_adap);
+	if (adap->fe_adap[0].fe == NULL)
 		return -EIO;
 
-	if (dvb_attach(ts2020_attach, d->fe_adap[0].fe,
+	if (dvb_attach(ts2020_attach, adap->fe_adap[0].fe,
 				&dw2104_ts2020_config,
-				&d->dev->i2c_adap)) {
+				&d->i2c_adap)) {
 		info("Attached DS3000/TS2020!");
 		return 0;
 	}
@@ -1361,47 +1440,55 @@ static int su3000_frontend_attach(struct
 	return -EIO;
 }
 
-static int t220_frontend_attach(struct dvb_usb_adapter *d)
+static int t220_frontend_attach(struct dvb_usb_adapter *adap)
 {
-	u8 obuf[3] = { 0xe, 0x87, 0 };
-	u8 ibuf[] = { 0 };
+	struct dvb_usb_device *d = adap->dev;
+	struct dw2102_state *state = d->priv;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	mutex_lock(&d->data_mutex);
+
+	state->data[0] = 0xe;
+	state->data[1] = 0x87;
+	state->data[2] = 0x0;
+
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x86;
-	obuf[2] = 1;
+	state->data[0] = 0xe;
+	state->data[1] = 0x86;
+	state->data[2] = 1;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x80;
-	obuf[2] = 0;
+	state->data[0] = 0xe;
+	state->data[1] = 0x80;
+	state->data[2] = 0;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
 	msleep(50);
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x80;
-	obuf[2] = 1;
+	state->data[0] = 0xe;
+	state->data[1] = 0x80;
+	state->data[2] = 1;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0x51;
+	state->data[0] = 0x51;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
 		err("command 0x51 transfer failed.");
 
-	d->fe_adap[0].fe = dvb_attach(cxd2820r_attach, &cxd2820r_config,
-					&d->dev->i2c_adap, NULL);
-	if (d->fe_adap[0].fe != NULL) {
-		if (dvb_attach(tda18271_attach, d->fe_adap[0].fe, 0x60,
-					&d->dev->i2c_adap, &tda18271_config)) {
+	mutex_unlock(&d->data_mutex);
+
+	adap->fe_adap[0].fe = dvb_attach(cxd2820r_attach, &cxd2820r_config,
+					&d->i2c_adap, NULL);
+	if (adap->fe_adap[0].fe != NULL) {
+		if (dvb_attach(tda18271_attach, adap->fe_adap[0].fe, 0x60,
+					&d->i2c_adap, &tda18271_config)) {
 			info("Attached TDA18271HD/CXD2820R!");
 			return 0;
 		}
@@ -1411,23 +1498,30 @@ static int t220_frontend_attach(struct d
 	return -EIO;
 }
 
-static int m88rs2000_frontend_attach(struct dvb_usb_adapter *d)
+static int m88rs2000_frontend_attach(struct dvb_usb_adapter *adap)
 {
-	u8 obuf[] = { 0x51 };
-	u8 ibuf[] = { 0 };
+	struct dvb_usb_device *d = adap->dev;
+	struct dw2102_state *state = d->priv;
 
-	if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0)
+	mutex_lock(&d->data_mutex);
+
+	state->data[0] = 0x51;
+
+	if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
 		err("command 0x51 transfer failed.");
 
-	d->fe_adap[0].fe = dvb_attach(m88rs2000_attach, &s421_m88rs2000_config,
-					&d->dev->i2c_adap);
+	mutex_unlock(&d->data_mutex);
 
-	if (d->fe_adap[0].fe == NULL)
+	adap->fe_adap[0].fe = dvb_attach(m88rs2000_attach,
+					&s421_m88rs2000_config,
+					&d->i2c_adap);
+
+	if (adap->fe_adap[0].fe == NULL)
 		return -EIO;
 
-	if (dvb_attach(ts2020_attach, d->fe_adap[0].fe,
+	if (dvb_attach(ts2020_attach, adap->fe_adap[0].fe,
 				&dw2104_ts2020_config,
-				&d->dev->i2c_adap)) {
+				&d->i2c_adap)) {
 		info("Attached RS2000/TS2020!");
 		return 0;
 	}
@@ -1440,44 +1534,50 @@ static int tt_s2_4600_frontend_attach(st
 {
 	struct dvb_usb_device *d = adap->dev;
 	struct dw2102_state *state = d->priv;
-	u8 obuf[3] = { 0xe, 0x80, 0 };
-	u8 ibuf[] = { 0 };
 	struct i2c_adapter *i2c_adapter;
 	struct i2c_client *client;
 	struct i2c_board_info board_info;
 	struct m88ds3103_platform_data m88ds3103_pdata = {};
 	struct ts2020_config ts2020_config = {};
 
-	if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+	mutex_lock(&d->data_mutex);
+
+	state->data[0] = 0xe;
+	state->data[1] = 0x80;
+	state->data[2] = 0x0;
+
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x02;
-	obuf[2] = 1;
+	state->data[0] = 0xe;
+	state->data[1] = 0x02;
+	state->data[2] = 1;
 
-	if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 	msleep(300);
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x83;
-	obuf[2] = 0;
+	state->data[0] = 0xe;
+	state->data[1] = 0x83;
+	state->data[2] = 0;
 
-	if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0xe;
-	obuf[1] = 0x83;
-	obuf[2] = 1;
+	state->data[0] = 0xe;
+	state->data[1] = 0x83;
+	state->data[2] = 1;
 
-	if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0)
 		err("command 0x0e transfer failed.");
 
-	obuf[0] = 0x51;
+	state->data[0] = 0x51;
 
-	if (dvb_usb_generic_rw(d, obuf, 1, ibuf, 1, 0) < 0)
+	if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0)
 		err("command 0x51 transfer failed.");
 
+	mutex_unlock(&d->data_mutex);
+
 	/* attach demod */
 	m88ds3103_pdata.clk = 27000000;
 	m88ds3103_pdata.i2c_wr_max = 33;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/pctv452e.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/pctv452e.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/pctv452e.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/pctv452e.c	2017-09-27 08:40:05.000000000 -0400
@@ -97,14 +97,13 @@ struct pctv452e_state {
 	u8 c;	   /* transaction counter, wraps around...  */
 	u8 initialized; /* set to 1 if 0x15 has been sent */
 	u16 last_rc_key;
-
-	unsigned char data[80];
 };
 
 static int tt3650_ci_msg(struct dvb_usb_device *d, u8 cmd, u8 *data,
 			 unsigned int write_len, unsigned int read_len)
 {
 	struct pctv452e_state *state = (struct pctv452e_state *)d->priv;
+	u8 *buf;
 	u8 id;
 	unsigned int rlen;
 	int ret;
@@ -114,36 +113,39 @@ static int tt3650_ci_msg(struct dvb_usb_
 		return -EIO;
 	}
 
-	mutex_lock(&state->ca_mutex);
+	buf = kmalloc(64, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
 	id = state->c++;
 
-	state->data[0] = SYNC_BYTE_OUT;
-	state->data[1] = id;
-	state->data[2] = cmd;
-	state->data[3] = write_len;
+	buf[0] = SYNC_BYTE_OUT;
+	buf[1] = id;
+	buf[2] = cmd;
+	buf[3] = write_len;
 
-	memcpy(state->data + 4, data, write_len);
+	memcpy(buf + 4, data, write_len);
 
 	rlen = (read_len > 0) ? 64 : 0;
-	ret = dvb_usb_generic_rw(d, state->data, 4 + write_len,
-				  state->data, rlen, /* delay_ms */ 0);
+	ret = dvb_usb_generic_rw(d, buf, 4 + write_len,
+				  buf, rlen, /* delay_ms */ 0);
 	if (0 != ret)
 		goto failed;
 
 	ret = -EIO;
-	if (SYNC_BYTE_IN != state->data[0] || id != state->data[1])
+	if (SYNC_BYTE_IN != buf[0] || id != buf[1])
 		goto failed;
 
-	memcpy(data, state->data + 4, read_len);
+	memcpy(data, buf + 4, read_len);
 
-	mutex_unlock(&state->ca_mutex);
+	kfree(buf);
 	return 0;
 
 failed:
 	err("CI error %d; %02X %02X %02X -> %*ph.",
-	     ret, SYNC_BYTE_OUT, id, cmd, 3, state->data);
+	     ret, SYNC_BYTE_OUT, id, cmd, 3, buf);
 
-	mutex_unlock(&state->ca_mutex);
+	kfree(buf);
 	return ret;
 }
 
@@ -410,53 +412,57 @@ static int pctv452e_i2c_msg(struct dvb_u
 				u8 *rcv_buf, u8 rcv_len)
 {
 	struct pctv452e_state *state = (struct pctv452e_state *)d->priv;
+	u8 *buf;
 	u8 id;
 	int ret;
 
-	mutex_lock(&state->ca_mutex);
+	buf = kmalloc(64, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
 	id = state->c++;
 
 	ret = -EINVAL;
 	if (snd_len > 64 - 7 || rcv_len > 64 - 7)
 		goto failed;
 
-	state->data[0] = SYNC_BYTE_OUT;
-	state->data[1] = id;
-	state->data[2] = PCTV_CMD_I2C;
-	state->data[3] = snd_len + 3;
-	state->data[4] = addr << 1;
-	state->data[5] = snd_len;
-	state->data[6] = rcv_len;
+	buf[0] = SYNC_BYTE_OUT;
+	buf[1] = id;
+	buf[2] = PCTV_CMD_I2C;
+	buf[3] = snd_len + 3;
+	buf[4] = addr << 1;
+	buf[5] = snd_len;
+	buf[6] = rcv_len;
 
-	memcpy(state->data + 7, snd_buf, snd_len);
+	memcpy(buf + 7, snd_buf, snd_len);
 
-	ret = dvb_usb_generic_rw(d, state->data, 7 + snd_len,
-				  state->data, /* rcv_len */ 64,
+	ret = dvb_usb_generic_rw(d, buf, 7 + snd_len,
+				  buf, /* rcv_len */ 64,
 				  /* delay_ms */ 0);
 	if (ret < 0)
 		goto failed;
 
 	/* TT USB protocol error. */
 	ret = -EIO;
-	if (SYNC_BYTE_IN != state->data[0] || id != state->data[1])
+	if (SYNC_BYTE_IN != buf[0] || id != buf[1])
 		goto failed;
 
 	/* I2C device didn't respond as expected. */
 	ret = -EREMOTEIO;
-	if (state->data[5] < snd_len || state->data[6] < rcv_len)
+	if (buf[5] < snd_len || buf[6] < rcv_len)
 		goto failed;
 
-	memcpy(rcv_buf, state->data + 7, rcv_len);
-	mutex_unlock(&state->ca_mutex);
+	memcpy(rcv_buf, buf + 7, rcv_len);
 
+	kfree(buf);
 	return rcv_len;
 
 failed:
 	err("I2C error %d; %02X %02X  %02X %02X %02X -> %*ph",
 	     ret, SYNC_BYTE_OUT, id, addr << 1, snd_len, rcv_len,
-	     7, state->data);
+	     7, buf);
 
-	mutex_unlock(&state->ca_mutex);
+	kfree(buf);
 	return ret;
 }
 
@@ -505,7 +511,7 @@ static u32 pctv452e_i2c_func(struct i2c_
 static int pctv452e_power_ctrl(struct dvb_usb_device *d, int i)
 {
 	struct pctv452e_state *state = (struct pctv452e_state *)d->priv;
-	u8 *rx;
+	u8 *b0, *rx;
 	int ret;
 
 	info("%s: %d\n", __func__, i);
@@ -516,11 +522,12 @@ static int pctv452e_power_ctrl(struct dv
 	if (state->initialized)
 		return 0;
 
-	rx = kmalloc(PCTV_ANSWER_LEN, GFP_KERNEL);
-	if (!rx)
+	b0 = kmalloc(5 + PCTV_ANSWER_LEN, GFP_KERNEL);
+	if (!b0)
 		return -ENOMEM;
 
-	mutex_lock(&state->ca_mutex);
+	rx = b0 + 5;
+
 	/* hmm where shoud this should go? */
 	ret = usb_set_interface(d->udev, 0, ISOC_INTERFACE_ALTERNATIVE);
 	if (ret != 0)
@@ -528,66 +535,70 @@ static int pctv452e_power_ctrl(struct dv
 			__func__, ret);
 
 	/* this is a one-time initialization, dont know where to put */
-	state->data[0] = 0xaa;
-	state->data[1] = state->c++;
-	state->data[2] = PCTV_CMD_RESET;
-	state->data[3] = 1;
-	state->data[4] = 0;
+	b0[0] = 0xaa;
+	b0[1] = state->c++;
+	b0[2] = PCTV_CMD_RESET;
+	b0[3] = 1;
+	b0[4] = 0;
 	/* reset board */
-	ret = dvb_usb_generic_rw(d, state->data, 5, rx, PCTV_ANSWER_LEN, 0);
+	ret = dvb_usb_generic_rw(d, b0, 5, rx, PCTV_ANSWER_LEN, 0);
 	if (ret)
 		goto ret;
 
-	state->data[1] = state->c++;
-	state->data[4] = 1;
+	b0[1] = state->c++;
+	b0[4] = 1;
 	/* reset board (again?) */
-	ret = dvb_usb_generic_rw(d, state->data, 5, rx, PCTV_ANSWER_LEN, 0);
+	ret = dvb_usb_generic_rw(d, b0, 5, rx, PCTV_ANSWER_LEN, 0);
 	if (ret)
 		goto ret;
 
 	state->initialized = 1;
 
 ret:
-	mutex_unlock(&state->ca_mutex);
-	kfree(rx);
+	kfree(b0);
 	return ret;
 }
 
 static int pctv452e_rc_query(struct dvb_usb_device *d)
 {
 	struct pctv452e_state *state = (struct pctv452e_state *)d->priv;
+	u8 *b, *rx;
 	int ret, i;
 	u8 id;
 
-	mutex_lock(&state->ca_mutex);
+	b = kmalloc(CMD_BUFFER_SIZE + PCTV_ANSWER_LEN, GFP_KERNEL);
+	if (!b)
+		return -ENOMEM;
+
+	rx = b + CMD_BUFFER_SIZE;
+
 	id = state->c++;
 
 	/* prepare command header  */
-	state->data[0] = SYNC_BYTE_OUT;
-	state->data[1] = id;
-	state->data[2] = PCTV_CMD_IR;
-	state->data[3] = 0;
+	b[0] = SYNC_BYTE_OUT;
+	b[1] = id;
+	b[2] = PCTV_CMD_IR;
+	b[3] = 0;
 
 	/* send ir request */
-	ret = dvb_usb_generic_rw(d, state->data, 4,
-				 state->data, PCTV_ANSWER_LEN, 0);
+	ret = dvb_usb_generic_rw(d, b, 4, rx, PCTV_ANSWER_LEN, 0);
 	if (ret != 0)
 		goto ret;
 
 	if (debug > 3) {
-		info("%s: read: %2d: %*ph: ", __func__, ret, 3, state->data);
-		for (i = 0; (i < state->data[3]) && ((i + 3) < PCTV_ANSWER_LEN); i++)
-			info(" %02x", state->data[i + 3]);
+		info("%s: read: %2d: %*ph: ", __func__, ret, 3, rx);
+		for (i = 0; (i < rx[3]) && ((i+3) < PCTV_ANSWER_LEN); i++)
+			info(" %02x", rx[i+3]);
 
 		info("\n");
 	}
 
-	if ((state->data[3] == 9) &&  (state->data[12] & 0x01)) {
+	if ((rx[3] == 9) &&  (rx[12] & 0x01)) {
 		/* got a "press" event */
-		state->last_rc_key = RC_SCANCODE_RC5(state->data[7], state->data[6]);
+		state->last_rc_key = RC_SCANCODE_RC5(rx[7], rx[6]);
 		if (debug > 2)
 			info("%s: cmd=0x%02x sys=0x%02x\n",
-				__func__, state->data[6], state->data[7]);
+				__func__, rx[6], rx[7]);
 
 		rc_keydown(d->rc_dev, RC_TYPE_RC5, state->last_rc_key, 0);
 	} else if (state->last_rc_key) {
@@ -595,7 +606,7 @@ static int pctv452e_rc_query(struct dvb_
 		state->last_rc_key = 0;
 	}
 ret:
-	mutex_unlock(&state->ca_mutex);
+	kfree(b);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/ttusb2.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/ttusb2.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb/ttusb2.c	2016-12-11 17:45:05.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb/ttusb2.c	2017-09-27 14:45:25.000000000 -0400
@@ -78,6 +78,9 @@ static int ttusb2_msg(struct dvb_usb_dev
 	u8 *s, *r = NULL;
 	int ret = 0;
 
+	if (4 + rlen > 64)
+		return -EIO;
+
 	s = kzalloc(wlen+4, GFP_KERNEL);
 	if (!s)
 		return -ENOMEM;
@@ -381,6 +384,22 @@ static int ttusb2_i2c_xfer(struct i2c_ad
 		write_read = i+1 < num && (msg[i+1].flags & I2C_M_RD);
 		read = msg[i].flags & I2C_M_RD;
 
+		if (3 + msg[i].len > sizeof(obuf)) {
+			err("i2c wr len=%d too high", msg[i].len);
+			break;
+		}
+		if (write_read) {
+			if (3 + msg[i+1].len > sizeof(ibuf)) {
+				err("i2c rd len=%d too high", msg[i+1].len);
+				break;
+			}
+		} else if (read) {
+			if (3 + msg[i].len > sizeof(ibuf)) {
+				err("i2c rd len=%d too high", msg[i].len);
+				break;
+			}
+		}
+
 		obuf[0] = (msg[i].addr << 1) | (write_read | read);
 		if (read)
 			obuf[1] = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c	2016-12-11 17:43:53.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/dvb_usb_core.c	2017-09-27 14:42:58.000000000 -0400
@@ -1013,8 +1013,8 @@ EXPORT_SYMBOL(dvb_usbv2_probe);
 void dvb_usbv2_disconnect(struct usb_interface *intf)
 {
 	struct dvb_usb_device *d = usb_get_intfdata(intf);
-	const char *name = d->name;
-	struct device dev = d->udev->dev;
+	const char *devname = kstrdup(dev_name(&d->udev->dev), GFP_KERNEL);
+	const char *drvname = d->name;
 
 	dev_dbg(&d->udev->dev, "%s: bInterfaceNumber=%d\n", __func__,
 			intf->cur_altsetting->desc.bInterfaceNumber);
@@ -1024,8 +1024,9 @@ void dvb_usbv2_disconnect(struct usb_int
 
 	dvb_usbv2_exit(d);
 
-	dev_info(&dev, "%s: '%s' successfully deinitialized and disconnected\n",
-			KBUILD_MODNAME, name);
+	pr_info("%s: '%s:%s' successfully deinitialized and disconnected\n",
+		KBUILD_MODNAME, drvname, devname);
+	kfree(devname);
 }
 EXPORT_SYMBOL(dvb_usbv2_disconnect);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,9 +24,6 @@
 #include "lgdt3305.h"
 #include "lg2160.h"
 
-/* Max transfer size done by I2C transfer functions */
-#define MAX_XFER_SIZE  64
-
 int dvb_usb_mxl111sf_debug;
 module_param_named(debug, dvb_usb_mxl111sf_debug, int, 0644);
 MODULE_PARM_DESC(debug, "set debugging level "
@@ -56,27 +53,34 @@ MODULE_PARM_DESC(rfswitch, "force rf swi
 
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
-int mxl111sf_ctrl_msg(struct dvb_usb_device *d,
+int mxl111sf_ctrl_msg(struct mxl111sf_state *state,
 		      u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
 {
+	struct dvb_usb_device *d = state->d;
 	int wo = (rbuf == NULL || rlen == 0); /* write-only */
 	int ret;
-	u8 sndbuf[MAX_XFER_SIZE];
 
-	if (1 + wlen > sizeof(sndbuf)) {
+	if (1 + wlen > MXL_MAX_XFER_SIZE) {
 		pr_warn("%s: len=%d is too big!\n", __func__, wlen);
 		return -EOPNOTSUPP;
 	}
 
 	pr_debug("%s(wlen = %d, rlen = %d)\n", __func__, wlen, rlen);
 
-	memset(sndbuf, 0, 1+wlen);
+	mutex_lock(&state->msg_lock);
+	memset(state->sndbuf, 0, 1+wlen);
+	memset(state->rcvbuf, 0, rlen);
 
-	sndbuf[0] = cmd;
-	memcpy(&sndbuf[1], wbuf, wlen);
+	state->sndbuf[0] = cmd;
+	memcpy(&state->sndbuf[1], wbuf, wlen);
+
+	ret = (wo) ? dvb_usbv2_generic_write(d, state->sndbuf, 1+wlen) :
+		dvb_usbv2_generic_rw(d, state->sndbuf, 1+wlen, state->rcvbuf,
+				     rlen);
+
+	memcpy(rbuf, state->rcvbuf, rlen);
+	mutex_unlock(&state->msg_lock);
 
-	ret = (wo) ? dvb_usbv2_generic_write(d, sndbuf, 1+wlen) :
-		dvb_usbv2_generic_rw(d, sndbuf, 1+wlen, rbuf, rlen);
 	mxl_fail(ret);
 
 	return ret;
@@ -92,7 +96,7 @@ int mxl111sf_read_reg(struct mxl111sf_st
 	u8 buf[2];
 	int ret;
 
-	ret = mxl111sf_ctrl_msg(state->d, MXL_CMD_REG_READ, &addr, 1, buf, 2);
+	ret = mxl111sf_ctrl_msg(state, MXL_CMD_REG_READ, &addr, 1, buf, 2);
 	if (mxl_fail(ret)) {
 		mxl_debug("error reading reg: 0x%02x", addr);
 		goto fail;
@@ -118,7 +122,7 @@ int mxl111sf_write_reg(struct mxl111sf_s
 
 	pr_debug("W: (0x%02x, 0x%02x)\n", addr, data);
 
-	ret = mxl111sf_ctrl_msg(state->d, MXL_CMD_REG_WRITE, buf, 2, NULL, 0);
+	ret = mxl111sf_ctrl_msg(state, MXL_CMD_REG_WRITE, buf, 2, NULL, 0);
 	if (mxl_fail(ret))
 		pr_err("error writing reg: 0x%02x, val: 0x%02x", addr, data);
 	return ret;
@@ -922,6 +926,8 @@ static int mxl111sf_init(struct dvb_usb_
 	static u8 eeprom[256];
 	struct i2c_client c;
 
+	mutex_init(&state->msg_lock);
+
 	ret = get_chip_info(state);
 	if (mxl_fail(ret))
 		pr_err("failed to get chip info during probe");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.h linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.h
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf.h	2017-09-27 08:40:05.000000000 -0400
@@ -19,6 +19,9 @@
 #include <media/tveeprom.h>
 #include <media/media-entity.h>
 
+/* Max transfer size done by I2C transfer functions */
+#define MXL_MAX_XFER_SIZE  64
+
 #define MXL_EP1_REG_READ     1
 #define MXL_EP2_REG_WRITE    2
 #define MXL_EP3_INTERRUPT    3
@@ -86,6 +89,9 @@ struct mxl111sf_state {
 	struct mutex fe_lock;
 	u8 num_frontends;
 	struct mxl111sf_adap_state adap_state[3];
+	u8 sndbuf[MXL_MAX_XFER_SIZE];
+	u8 rcvbuf[MXL_MAX_XFER_SIZE];
+	struct mutex msg_lock;
 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	struct media_entity tuner;
 	struct media_pad tuner_pads[2];
@@ -108,7 +114,7 @@ int mxl111sf_ctrl_program_regs(struct mx
 
 /* needed for hardware i2c functions in mxl111sf-i2c.c:
  * mxl111sf_i2c_send_data / mxl111sf_i2c_get_data */
-int mxl111sf_ctrl_msg(struct dvb_usb_device *d,
+int mxl111sf_ctrl_msg(struct mxl111sf_state *state,
 		      u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen);
 
 #define mxl_printk(kern, fmt, arg...) \
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c
--- linux-libre-4.9-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c	2017-09-27 08:40:05.000000000 -0400
@@ -320,7 +320,7 @@ fail:
 static int mxl111sf_i2c_send_data(struct mxl111sf_state *state,
 				  u8 index, u8 *wdata)
 {
-	int ret = mxl111sf_ctrl_msg(state->d, wdata[0],
+	int ret = mxl111sf_ctrl_msg(state, wdata[0],
 				    &wdata[1], 25, NULL, 0);
 	mxl_fail(ret);
 
@@ -330,7 +330,7 @@ static int mxl111sf_i2c_send_data(struct
 static int mxl111sf_i2c_get_data(struct mxl111sf_state *state,
 				 u8 index, u8 *wdata, u8 *rdata)
 {
-	int ret = mxl111sf_ctrl_msg(state->d, wdata[0],
+	int ret = mxl111sf_ctrl_msg(state, wdata[0],
 				    &wdata[1], 25, rdata, 24);
 	mxl_fail(ret);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/gspca/konica.c linux-libre-4.9.52-gnu/drivers/media/usb/gspca/konica.c
--- linux-libre-4.9-gnu/drivers/media/usb/gspca/konica.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/gspca/konica.c	2017-09-27 08:40:05.000000000 -0400
@@ -188,6 +188,9 @@ static int sd_start(struct gspca_dev *gs
 		return -EIO;
 	}
 
+	if (alt->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 
 	n = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c linux-libre-4.9.52-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c
--- linux-libre-4.9-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c	2017-09-27 08:40:05.000000000 -0400
@@ -123,15 +123,10 @@ int pvr2_eeprom_analyze(struct pvr2_hdw
 	memset(&tvdata,0,sizeof(tvdata));
 
 	eeprom = pvr2_eeprom_fetch(hdw);
-	if (!eeprom) return -EINVAL;
+	if (!eeprom)
+		return -EINVAL;
 
-	{
-		struct i2c_client fake_client;
-		/* Newer version expects a useless client interface */
-		fake_client.addr = hdw->eeprom_addr;
-		fake_client.adapter = &hdw->i2c_adap;
-		tveeprom_hauppauge_analog(&fake_client,&tvdata,eeprom);
-	}
+	tveeprom_hauppauge_analog(NULL, &tvdata, eeprom);
 
 	trace_eeprom("eeprom assumed v4l tveeprom module");
 	trace_eeprom("eeprom direct call results:");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/siano/smsusb.c linux-libre-4.9.52-gnu/drivers/media/usb/siano/smsusb.c
--- linux-libre-4.9-gnu/drivers/media/usb/siano/smsusb.c	2016-12-11 17:46:49.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/siano/smsusb.c	2017-09-27 14:48:58.000000000 -0400
@@ -218,22 +218,30 @@ static int smsusb_start_streaming(struct
 static int smsusb_sendrequest(void *context, void *buffer, size_t size)
 {
 	struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
-	struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) buffer;
-	int dummy;
+	struct sms_msg_hdr *phdr;
+	int dummy, ret;
 
 	if (dev->state != SMSUSB_ACTIVE) {
 		pr_debug("Device not active yet\n");
 		return -ENOENT;
 	}
 
+	phdr = kmalloc(size, GFP_KERNEL);
+	if (!phdr)
+		return -ENOMEM;
+	memcpy(phdr, buffer, size);
+
 	pr_debug("sending %s(%d) size: %d\n",
 		  smscore_translate_msg(phdr->msg_type), phdr->msg_type,
 		  phdr->msg_length);
 
 	smsendian_handle_tx_message((struct sms_msg_data *) phdr);
-	smsendian_handle_message_header((struct sms_msg_hdr *)buffer);
-	return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
-			    buffer, size, &dummy, 1000);
+	smsendian_handle_message_header((struct sms_msg_hdr *)phdr);
+	ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
+			    phdr, size, &dummy, 1000);
+
+	kfree(phdr);
+	return ret;
 }
 
 static char *smsusb1_fw_lkup[] = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/usbvision/usbvision-video.c linux-libre-4.9.52-gnu/drivers/media/usb/usbvision/usbvision-video.c
--- linux-libre-4.9-gnu/drivers/media/usb/usbvision/usbvision-video.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/usbvision/usbvision-video.c	2017-09-27 08:40:05.000000000 -0400
@@ -1506,7 +1506,14 @@ static int usbvision_probe(struct usb_in
 	}
 
 	for (i = 0; i < usbvision->num_alt; i++) {
-		u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
+		u16 tmp;
+
+		if (uif->altsetting[i].desc.bNumEndpoints < 2) {
+			ret = -ENODEV;
+			goto err_pkt;
+		}
+
+		tmp = le16_to_cpu(uif->altsetting[i].endpoint[1].desc.
 				      wMaxPacketSize);
 		usbvision->alt_max_pkt_size[i] =
 			(tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/uvc/uvc_ctrl.c linux-libre-4.9.52-gnu/drivers/media/usb/uvc/uvc_ctrl.c
--- linux-libre-4.9-gnu/drivers/media/usb/uvc/uvc_ctrl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/uvc/uvc_ctrl.c	2017-09-27 08:40:05.000000000 -0400
@@ -2002,6 +2002,13 @@ int uvc_ctrl_add_mapping(struct uvc_vide
 		goto done;
 	}
 
+	/* Validate the user-provided bit-size and offset */
+	if (mapping->size > 32 ||
+	    mapping->offset + mapping->size > ctrl->info.size * 8) {
+		ret = -EINVAL;
+		goto done;
+	}
+
 	list_for_each_entry(map, &ctrl->info.mappings, list) {
 		if (mapping->id == map->id) {
 			uvc_trace(UVC_TRACE_CONTROL, "Can't add mapping '%s', "
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/uvc/uvc_driver.c linux-libre-4.9.52-gnu/drivers/media/usb/uvc/uvc_driver.c
--- linux-libre-4.9-gnu/drivers/media/usb/uvc/uvc_driver.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/uvc/uvc_driver.c	2017-09-27 08:40:05.000000000 -0400
@@ -1595,6 +1595,114 @@ static const char *uvc_print_chain(struc
 	return buffer;
 }
 
+static struct uvc_video_chain *uvc_alloc_chain(struct uvc_device *dev)
+{
+	struct uvc_video_chain *chain;
+
+	chain = kzalloc(sizeof(*chain), GFP_KERNEL);
+	if (chain == NULL)
+		return NULL;
+
+	INIT_LIST_HEAD(&chain->entities);
+	mutex_init(&chain->ctrl_mutex);
+	chain->dev = dev;
+	v4l2_prio_init(&chain->prio);
+
+	return chain;
+}
+
+/*
+ * Fallback heuristic for devices that don't connect units and terminals in a
+ * valid chain.
+ *
+ * Some devices have invalid baSourceID references, causing uvc_scan_chain()
+ * to fail, but if we just take the entities we can find and put them together
+ * in the most sensible chain we can think of, turns out they do work anyway.
+ * Note: This heuristic assumes there is a single chain.
+ *
+ * At the time of writing, devices known to have such a broken chain are
+ *  - Acer Integrated Camera (5986:055a)
+ *  - Realtek rtl157a7 (0bda:57a7)
+ */
+static int uvc_scan_fallback(struct uvc_device *dev)
+{
+	struct uvc_video_chain *chain;
+	struct uvc_entity *iterm = NULL;
+	struct uvc_entity *oterm = NULL;
+	struct uvc_entity *entity;
+	struct uvc_entity *prev;
+
+	/*
+	 * Start by locating the input and output terminals. We only support
+	 * devices with exactly one of each for now.
+	 */
+	list_for_each_entry(entity, &dev->entities, list) {
+		if (UVC_ENTITY_IS_ITERM(entity)) {
+			if (iterm)
+				return -EINVAL;
+			iterm = entity;
+		}
+
+		if (UVC_ENTITY_IS_OTERM(entity)) {
+			if (oterm)
+				return -EINVAL;
+			oterm = entity;
+		}
+	}
+
+	if (iterm == NULL || oterm == NULL)
+		return -EINVAL;
+
+	/* Allocate the chain and fill it. */
+	chain = uvc_alloc_chain(dev);
+	if (chain == NULL)
+		return -ENOMEM;
+
+	if (uvc_scan_chain_entity(chain, oterm) < 0)
+		goto error;
+
+	prev = oterm;
+
+	/*
+	 * Add all Processing and Extension Units with two pads. The order
+	 * doesn't matter much, use reverse list traversal to connect units in
+	 * UVC descriptor order as we build the chain from output to input. This
+	 * leads to units appearing in the order meant by the manufacturer for
+	 * the cameras known to require this heuristic.
+	 */
+	list_for_each_entry_reverse(entity, &dev->entities, list) {
+		if (entity->type != UVC_VC_PROCESSING_UNIT &&
+		    entity->type != UVC_VC_EXTENSION_UNIT)
+			continue;
+
+		if (entity->num_pads != 2)
+			continue;
+
+		if (uvc_scan_chain_entity(chain, entity) < 0)
+			goto error;
+
+		prev->baSourceID[0] = entity->id;
+		prev = entity;
+	}
+
+	if (uvc_scan_chain_entity(chain, iterm) < 0)
+		goto error;
+
+	prev->baSourceID[0] = iterm->id;
+
+	list_add_tail(&chain->list, &dev->chains);
+
+	uvc_trace(UVC_TRACE_PROBE,
+		  "Found a video chain by fallback heuristic (%s).\n",
+		  uvc_print_chain(chain));
+
+	return 0;
+
+error:
+	kfree(chain);
+	return -EINVAL;
+}
+
 /*
  * Scan the device for video chains and register video devices.
  *
@@ -1617,15 +1725,10 @@ static int uvc_scan_device(struct uvc_de
 		if (term->chain.next || term->chain.prev)
 			continue;
 
-		chain = kzalloc(sizeof(*chain), GFP_KERNEL);
+		chain = uvc_alloc_chain(dev);
 		if (chain == NULL)
 			return -ENOMEM;
 
-		INIT_LIST_HEAD(&chain->entities);
-		mutex_init(&chain->ctrl_mutex);
-		chain->dev = dev;
-		v4l2_prio_init(&chain->prio);
-
 		term->flags |= UVC_ENTITY_FLAG_DEFAULT;
 
 		if (uvc_scan_chain(chain, term) < 0) {
@@ -1639,6 +1742,9 @@ static int uvc_scan_device(struct uvc_de
 		list_add_tail(&chain->list, &dev->chains);
 	}
 
+	if (list_empty(&dev->chains))
+		uvc_scan_fallback(dev);
+
 	if (list_empty(&dev->chains)) {
 		uvc_printk(KERN_INFO, "No valid video chain found.\n");
 		return -1;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/uvc/uvc_queue.c linux-libre-4.9.52-gnu/drivers/media/usb/uvc/uvc_queue.c
--- linux-libre-4.9-gnu/drivers/media/usb/uvc/uvc_queue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/uvc/uvc_queue.c	2017-09-27 08:40:05.000000000 -0400
@@ -412,7 +412,7 @@ struct uvc_buffer *uvc_queue_next_buffer
 		nextbuf = NULL;
 	spin_unlock_irqrestore(&queue->irqlock, flags);
 
-	buf->state = buf->error ? VB2_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
+	buf->state = buf->error ? UVC_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
 	vb2_set_plane_payload(&buf->buf.vb2_buf, 0, buf->bytesused);
 	vb2_buffer_done(&buf->buf.vb2_buf, VB2_BUF_STATE_DONE);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/usb/zr364xx/zr364xx.c linux-libre-4.9.52-gnu/drivers/media/usb/zr364xx/zr364xx.c
--- linux-libre-4.9-gnu/drivers/media/usb/zr364xx/zr364xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/usb/zr364xx/zr364xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -604,6 +604,14 @@ static int zr364xx_read_video_callback(s
 	ptr = pdest = frm->lpvbits;
 
 	if (frm->ulState == ZR364XX_READ_IDLE) {
+		if (purb->actual_length < 128) {
+			/* header incomplete */
+			dev_info(&cam->udev->dev,
+				 "%s: buffer (%d bytes) too small to hold jpeg header. Discarding.\n",
+				 __func__, purb->actual_length);
+			return -EINVAL;
+		}
+
 		frm->ulState = ZR364XX_READ_FRAME;
 		frm->cur_size = 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c linux-libre-4.9.52-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
--- linux-libre-4.9-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/v4l2-core/v4l2-compat-ioctl32.c	2017-09-27 08:40:05.000000000 -0400
@@ -773,7 +773,8 @@ static int put_v4l2_event32(struct v4l2_
 		copy_to_user(&up->u, &kp->u, sizeof(kp->u)) ||
 		put_user(kp->pending, &up->pending) ||
 		put_user(kp->sequence, &up->sequence) ||
-		compat_put_timespec(&kp->timestamp, &up->timestamp) ||
+		put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) ||
+		put_user(kp->timestamp.tv_nsec, &up->timestamp.tv_nsec) ||
 		put_user(kp->id, &up->id) ||
 		copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32)))
 			return -EFAULT;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/media/v4l2-core/videobuf2-core.c linux-libre-4.9.52-gnu/drivers/media/v4l2-core/videobuf2-core.c
--- linux-libre-4.9-gnu/drivers/media/v4l2-core/videobuf2-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/media/v4l2-core/videobuf2-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -868,7 +868,7 @@ EXPORT_SYMBOL_GPL(vb2_core_create_bufs);
 
 void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no)
 {
-	if (plane_no > vb->num_planes || !vb->planes[plane_no].mem_priv)
+	if (plane_no >= vb->num_planes || !vb->planes[plane_no].mem_priv)
 		return NULL;
 
 	return call_ptr_memop(vb, vaddr, vb->planes[plane_no].mem_priv);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/memory/atmel-ebi.c linux-libre-4.9.52-gnu/drivers/memory/atmel-ebi.c
--- linux-libre-4.9-gnu/drivers/memory/atmel-ebi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/memory/atmel-ebi.c	2017-09-27 08:40:05.000000000 -0400
@@ -93,7 +93,7 @@ static void at91sam9_ebi_get_config(stru
 				    struct at91_ebi_dev_config *conf)
 {
 	struct at91sam9_smc_generic_fields *fields = &ebid->ebi->sam9;
-	unsigned int clk_rate = clk_get_rate(ebid->ebi->clk);
+	unsigned int clk_period = NSEC_PER_SEC / clk_get_rate(ebid->ebi->clk);
 	struct at91sam9_ebi_dev_config *config = &conf->sam9;
 	struct at91sam9_smc_timings *timings = &config->timings;
 	unsigned int val;
@@ -102,43 +102,43 @@ static void at91sam9_ebi_get_config(stru
 	config->mode = val & ~AT91_SMC_TDF;
 
 	val = (val & AT91_SMC_TDF) >> 16;
-	timings->tdf_ns = clk_rate * val;
+	timings->tdf_ns = clk_period * val;
 
 	regmap_fields_read(fields->setup, conf->cs, &val);
 	timings->ncs_rd_setup_ns = (val >> 24) & 0x1f;
 	timings->ncs_rd_setup_ns += ((val >> 29) & 0x1) * 128;
-	timings->ncs_rd_setup_ns *= clk_rate;
+	timings->ncs_rd_setup_ns *= clk_period;
 	timings->nrd_setup_ns = (val >> 16) & 0x1f;
 	timings->nrd_setup_ns += ((val >> 21) & 0x1) * 128;
-	timings->nrd_setup_ns *= clk_rate;
+	timings->nrd_setup_ns *= clk_period;
 	timings->ncs_wr_setup_ns = (val >> 8) & 0x1f;
 	timings->ncs_wr_setup_ns += ((val >> 13) & 0x1) * 128;
-	timings->ncs_wr_setup_ns *= clk_rate;
+	timings->ncs_wr_setup_ns *= clk_period;
 	timings->nwe_setup_ns = val & 0x1f;
 	timings->nwe_setup_ns += ((val >> 5) & 0x1) * 128;
-	timings->nwe_setup_ns *= clk_rate;
+	timings->nwe_setup_ns *= clk_period;
 
 	regmap_fields_read(fields->pulse, conf->cs, &val);
 	timings->ncs_rd_pulse_ns = (val >> 24) & 0x3f;
 	timings->ncs_rd_pulse_ns += ((val >> 30) & 0x1) * 256;
-	timings->ncs_rd_pulse_ns *= clk_rate;
+	timings->ncs_rd_pulse_ns *= clk_period;
 	timings->nrd_pulse_ns = (val >> 16) & 0x3f;
 	timings->nrd_pulse_ns += ((val >> 22) & 0x1) * 256;
-	timings->nrd_pulse_ns *= clk_rate;
+	timings->nrd_pulse_ns *= clk_period;
 	timings->ncs_wr_pulse_ns = (val >> 8) & 0x3f;
 	timings->ncs_wr_pulse_ns += ((val >> 14) & 0x1) * 256;
-	timings->ncs_wr_pulse_ns *= clk_rate;
+	timings->ncs_wr_pulse_ns *= clk_period;
 	timings->nwe_pulse_ns = val & 0x3f;
 	timings->nwe_pulse_ns += ((val >> 6) & 0x1) * 256;
-	timings->nwe_pulse_ns *= clk_rate;
+	timings->nwe_pulse_ns *= clk_period;
 
 	regmap_fields_read(fields->cycle, conf->cs, &val);
 	timings->nrd_cycle_ns = (val >> 16) & 0x7f;
 	timings->nrd_cycle_ns += ((val >> 23) & 0x3) * 256;
-	timings->nrd_cycle_ns *= clk_rate;
+	timings->nrd_cycle_ns *= clk_period;
 	timings->nwe_cycle_ns = val & 0x7f;
 	timings->nwe_cycle_ns += ((val >> 7) & 0x3) * 256;
-	timings->nwe_cycle_ns *= clk_rate;
+	timings->nwe_cycle_ns *= clk_period;
 }
 
 static int at91_xlate_timing(struct device_node *np, const char *prop,
@@ -334,6 +334,7 @@ static int at91sam9_ebi_apply_config(str
 				     struct at91_ebi_dev_config *conf)
 {
 	unsigned int clk_rate = clk_get_rate(ebid->ebi->clk);
+	unsigned int clk_period = NSEC_PER_SEC / clk_rate;
 	struct at91sam9_ebi_dev_config *config = &conf->sam9;
 	struct at91sam9_smc_timings *timings = &config->timings;
 	struct at91sam9_smc_generic_fields *fields = &ebid->ebi->sam9;
@@ -376,7 +377,7 @@ static int at91sam9_ebi_apply_config(str
 	val |= AT91SAM9_SMC_NWECYCLE(coded_val);
 	regmap_fields_write(fields->cycle, conf->cs, val);
 
-	val = DIV_ROUND_UP(timings->tdf_ns, clk_rate);
+	val = DIV_ROUND_UP(timings->tdf_ns, clk_period);
 	if (val > AT91_SMC_TDF_MAX)
 		val = AT91_SMC_TDF_MAX;
 	regmap_fields_write(fields->mode, conf->cs,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mfd/omap-usb-tll.c linux-libre-4.9.52-gnu/drivers/mfd/omap-usb-tll.c
--- linux-libre-4.9-gnu/drivers/mfd/omap-usb-tll.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mfd/omap-usb-tll.c	2017-09-27 08:40:05.000000000 -0400
@@ -377,8 +377,8 @@ int omap_tll_init(struct usbhs_omap_plat
 				 * and use SDR Mode
 				 */
 				reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
-					| OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
 					| OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
+				reg |= OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF;
 			} else if (pdata->port_mode[i] ==
 					OMAP_EHCI_PORT_MODE_HSIC) {
 				/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mfd/tps65217.c linux-libre-4.9.52-gnu/drivers/mfd/tps65217.c
--- linux-libre-4.9-gnu/drivers/mfd/tps65217.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mfd/tps65217.c	2017-09-27 08:40:05.000000000 -0400
@@ -424,6 +424,24 @@ static int tps65217_probe(struct i2c_cli
 	return 0;
 }
 
+static int tps65217_remove(struct i2c_client *client)
+{
+	struct tps65217 *tps = i2c_get_clientdata(client);
+	unsigned int virq;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(tps65217_irqs); i++) {
+		virq = irq_find_mapping(tps->irq_domain, i);
+		if (virq)
+			irq_dispose_mapping(virq);
+	}
+
+	irq_domain_remove(tps->irq_domain);
+	tps->irq_domain = NULL;
+
+	return 0;
+}
+
 static const struct i2c_device_id tps65217_id_table[] = {
 	{"tps65217", TPS65217},
 	{ /* sentinel */ }
@@ -437,6 +455,7 @@ static struct i2c_driver tps65217_driver
 	},
 	.id_table	= tps65217_id_table,
 	.probe		= tps65217_probe,
+	.remove		= tps65217_remove,
 };
 
 static int __init tps65217_init(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/c2port/c2port-duramar2150.c linux-libre-4.9.52-gnu/drivers/misc/c2port/c2port-duramar2150.c
--- linux-libre-4.9-gnu/drivers/misc/c2port/c2port-duramar2150.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/c2port/c2port-duramar2150.c	2017-09-27 08:40:05.000000000 -0400
@@ -129,8 +129,8 @@ static int __init duramar2150_c2port_ini
 
 	duramar2150_c2port_dev = c2port_device_register("uc",
 					&duramar2150_c2port_ops, NULL);
-	if (!duramar2150_c2port_dev) {
-		ret = -ENODEV;
+	if (IS_ERR(duramar2150_c2port_dev)) {
+		ret = PTR_ERR(duramar2150_c2port_dev);
 		goto free_region;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/cxl/cxl.h linux-libre-4.9.52-gnu/drivers/misc/cxl/cxl.h
--- linux-libre-4.9-gnu/drivers/misc/cxl/cxl.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/cxl/cxl.h	2017-09-27 08:40:05.000000000 -0400
@@ -419,6 +419,9 @@ struct cxl_afu {
 	struct mutex contexts_lock;
 	spinlock_t afu_cntl_lock;
 
+	/* -1: AFU deconfigured/locked, >= 0: number of readers */
+	atomic_t configured_state;
+
 	/* AFU error buffer fields and bin attribute for sysfs */
 	u64 eb_len, eb_offset;
 	struct bin_attribute attr_eb;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/cxl/file.c linux-libre-4.9.52-gnu/drivers/misc/cxl/file.c
--- linux-libre-4.9-gnu/drivers/misc/cxl/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/cxl/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -155,11 +155,8 @@ static long afu_ioctl_start_work(struct
 
 	/* Do this outside the status_mutex to avoid a circular dependency with
 	 * the locking in cxl_mmap_fault() */
-	if (copy_from_user(&work, uwork,
-			   sizeof(struct cxl_ioctl_start_work))) {
-		rc = -EFAULT;
-		goto out;
-	}
+	if (copy_from_user(&work, uwork, sizeof(work)))
+		return -EFAULT;
 
 	mutex_lock(&ctx->status_mutex);
 	if (ctx->status != OPENED) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/cxl/main.c linux-libre-4.9.52-gnu/drivers/misc/cxl/main.c
--- linux-libre-4.9-gnu/drivers/misc/cxl/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/cxl/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -268,7 +268,7 @@ struct cxl_afu *cxl_alloc_afu(struct cxl
 	idr_init(&afu->contexts_idr);
 	mutex_init(&afu->contexts_lock);
 	spin_lock_init(&afu->afu_cntl_lock);
-
+	atomic_set(&afu->configured_state, -1);
 	afu->prefault_mode = CXL_PREFAULT_NONE;
 	afu->irqs_max = afu->adapter->user_irqs;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/cxl/native.c linux-libre-4.9.52-gnu/drivers/misc/cxl/native.c
--- linux-libre-4.9-gnu/drivers/misc/cxl/native.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/cxl/native.c	2017-09-27 08:40:05.000000000 -0400
@@ -1066,13 +1066,16 @@ int cxl_native_register_psl_err_irq(stru
 
 void cxl_native_release_psl_err_irq(struct cxl *adapter)
 {
-	if (adapter->native->err_virq != irq_find_mapping(NULL, adapter->native->err_hwirq))
+	if (adapter->native->err_virq == 0 ||
+	    adapter->native->err_virq !=
+	    irq_find_mapping(NULL, adapter->native->err_hwirq))
 		return;
 
 	cxl_p1_write(adapter, CXL_PSL_ErrIVTE, 0x0000000000000000);
 	cxl_unmap_irq(adapter->native->err_virq, adapter);
 	cxl_ops->release_one_irq(adapter, adapter->native->err_hwirq);
 	kfree(adapter->irq_name);
+	adapter->native->err_virq = 0;
 }
 
 int cxl_native_register_serr_irq(struct cxl_afu *afu)
@@ -1102,13 +1105,15 @@ int cxl_native_register_serr_irq(struct
 
 void cxl_native_release_serr_irq(struct cxl_afu *afu)
 {
-	if (afu->serr_virq != irq_find_mapping(NULL, afu->serr_hwirq))
+	if (afu->serr_virq == 0 ||
+	    afu->serr_virq != irq_find_mapping(NULL, afu->serr_hwirq))
 		return;
 
 	cxl_p1n_write(afu, CXL_PSL_SERR_An, 0x0000000000000000);
 	cxl_unmap_irq(afu->serr_virq, afu);
 	cxl_ops->release_one_irq(afu->adapter, afu->serr_hwirq);
 	kfree(afu->err_irq_name);
+	afu->serr_virq = 0;
 }
 
 int cxl_native_register_psl_irq(struct cxl_afu *afu)
@@ -1131,12 +1136,15 @@ int cxl_native_register_psl_irq(struct c
 
 void cxl_native_release_psl_irq(struct cxl_afu *afu)
 {
-	if (afu->native->psl_virq != irq_find_mapping(NULL, afu->native->psl_hwirq))
+	if (afu->native->psl_virq == 0 ||
+	    afu->native->psl_virq !=
+	    irq_find_mapping(NULL, afu->native->psl_hwirq))
 		return;
 
 	cxl_unmap_irq(afu->native->psl_virq, afu);
 	cxl_ops->release_one_irq(afu->adapter, afu->native->psl_hwirq);
 	kfree(afu->psl_irq_name);
+	afu->native->psl_virq = 0;
 }
 
 static void recover_psl_err(struct cxl_afu *afu, u64 errstat)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/cxl/pci.c linux-libre-4.9.52-gnu/drivers/misc/cxl/pci.c
--- linux-libre-4.9-gnu/drivers/misc/cxl/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/cxl/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -1129,6 +1129,7 @@ static int pci_configure_afu(struct cxl_
 	if ((rc = cxl_native_register_psl_irq(afu)))
 		goto err2;
 
+	atomic_set(&afu->configured_state, 0);
 	return 0;
 
 err2:
@@ -1141,6 +1142,14 @@ err1:
 
 static void pci_deconfigure_afu(struct cxl_afu *afu)
 {
+	/*
+	 * It's okay to deconfigure when AFU is already locked, otherwise wait
+	 * until there are no readers
+	 */
+	if (atomic_read(&afu->configured_state) != -1) {
+		while (atomic_cmpxchg(&afu->configured_state, 0, -1) != -1)
+			schedule();
+	}
 	cxl_native_release_psl_irq(afu);
 	if (afu->adapter->native->sl_ops->release_serr_irq)
 		afu->adapter->native->sl_ops->release_serr_irq(afu);
@@ -1487,8 +1496,6 @@ static int cxl_configure_adapter(struct
 	if ((rc = cxl_native_register_psl_err_irq(adapter)))
 		goto err;
 
-	/* Release the context lock as adapter is configured */
-	cxl_adapter_context_unlock(adapter);
 	return 0;
 
 err:
@@ -1587,6 +1594,9 @@ static struct cxl *cxl_pci_init_adapter(
 	if ((rc = cxl_sysfs_adapter_add(adapter)))
 		goto err_put1;
 
+	/* Release the context lock as adapter is configured */
+	cxl_adapter_context_unlock(adapter);
+
 	return adapter;
 
 err_put1:
@@ -1769,7 +1779,7 @@ static pci_ers_result_t cxl_pci_error_de
 {
 	struct cxl *adapter = pci_get_drvdata(pdev);
 	struct cxl_afu *afu;
-	pci_ers_result_t result = PCI_ERS_RESULT_NEED_RESET;
+	pci_ers_result_t result = PCI_ERS_RESULT_NEED_RESET, afu_result;
 	int i;
 
 	/* At this point, we could still have an interrupt pending.
@@ -1874,16 +1884,26 @@ static pci_ers_result_t cxl_pci_error_de
 	for (i = 0; i < adapter->slices; i++) {
 		afu = adapter->afu[i];
 
-		result = cxl_vphb_error_detected(afu, state);
-
-		/* Only continue if everyone agrees on NEED_RESET */
-		if (result != PCI_ERS_RESULT_NEED_RESET)
-			return result;
+		afu_result = cxl_vphb_error_detected(afu, state);
 
 		cxl_context_detach_all(afu);
 		cxl_ops->afu_deactivate_mode(afu, afu->current_mode);
 		pci_deconfigure_afu(afu);
+
+		/* Disconnect trumps all, NONE trumps NEED_RESET */
+		if (afu_result == PCI_ERS_RESULT_DISCONNECT)
+			result = PCI_ERS_RESULT_DISCONNECT;
+		else if ((afu_result == PCI_ERS_RESULT_NONE) &&
+			 (result == PCI_ERS_RESULT_NEED_RESET))
+			result = PCI_ERS_RESULT_NONE;
 	}
+
+	/* should take the context lock here */
+	if (cxl_adapter_context_lock(adapter) != 0)
+		dev_warn(&adapter->dev,
+			 "Couldn't take context lock with %d active-contexts\n",
+			 atomic_read(&adapter->contexts_num));
+
 	cxl_deconfigure_adapter(adapter);
 
 	return result;
@@ -1902,6 +1922,13 @@ static pci_ers_result_t cxl_pci_slot_res
 	if (cxl_configure_adapter(adapter, pdev))
 		goto err;
 
+	/*
+	 * Unlock context activation for the adapter. Ideally this should be
+	 * done in cxl_pci_resume but cxlflash module tries to activate the
+	 * master context as part of slot_reset callback.
+	 */
+	cxl_adapter_context_unlock(adapter);
+
 	for (i = 0; i < adapter->slices; i++) {
 		afu = adapter->afu[i];
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/cxl/vphb.c linux-libre-4.9.52-gnu/drivers/misc/cxl/vphb.c
--- linux-libre-4.9-gnu/drivers/misc/cxl/vphb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/cxl/vphb.c	2017-09-27 08:40:05.000000000 -0400
@@ -76,23 +76,32 @@ static int cxl_pcie_cfg_record(u8 bus, u
 	return (bus << 8) + devfn;
 }
 
-static int cxl_pcie_config_info(struct pci_bus *bus, unsigned int devfn,
-				struct cxl_afu **_afu, int *_record)
+static inline struct cxl_afu *pci_bus_to_afu(struct pci_bus *bus)
 {
-	struct pci_controller *phb;
-	struct cxl_afu *afu;
-	int record;
+	struct pci_controller *phb = bus ? pci_bus_to_host(bus) : NULL;
 
-	phb = pci_bus_to_host(bus);
-	if (phb == NULL)
-		return PCIBIOS_DEVICE_NOT_FOUND;
+	return phb ? phb->private_data : NULL;
+}
+
+static void cxl_afu_configured_put(struct cxl_afu *afu)
+{
+	atomic_dec_if_positive(&afu->configured_state);
+}
+
+static bool cxl_afu_configured_get(struct cxl_afu *afu)
+{
+	return atomic_inc_unless_negative(&afu->configured_state);
+}
+
+static inline int cxl_pcie_config_info(struct pci_bus *bus, unsigned int devfn,
+				       struct cxl_afu *afu, int *_record)
+{
+	int record;
 
-	afu = (struct cxl_afu *)phb->private_data;
 	record = cxl_pcie_cfg_record(bus->number, devfn);
 	if (record > afu->crs_num)
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
-	*_afu = afu;
 	*_record = record;
 	return 0;
 }
@@ -106,9 +115,14 @@ static int cxl_pcie_read_config(struct p
 	u16 val16;
 	u32 val32;
 
-	rc = cxl_pcie_config_info(bus, devfn, &afu, &record);
+	afu = pci_bus_to_afu(bus);
+	/* Grab a reader lock on afu. */
+	if (afu == NULL || !cxl_afu_configured_get(afu))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	rc = cxl_pcie_config_info(bus, devfn, afu, &record);
 	if (rc)
-		return rc;
+		goto out;
 
 	switch (len) {
 	case 1:
@@ -127,10 +141,9 @@ static int cxl_pcie_read_config(struct p
 		WARN_ON(1);
 	}
 
-	if (rc)
-		return PCIBIOS_DEVICE_NOT_FOUND;
-
-	return PCIBIOS_SUCCESSFUL;
+out:
+	cxl_afu_configured_put(afu);
+	return rc ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
 }
 
 static int cxl_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
@@ -139,9 +152,14 @@ static int cxl_pcie_write_config(struct
 	int rc, record;
 	struct cxl_afu *afu;
 
-	rc = cxl_pcie_config_info(bus, devfn, &afu, &record);
+	afu = pci_bus_to_afu(bus);
+	/* Grab a reader lock on afu. */
+	if (afu == NULL || !cxl_afu_configured_get(afu))
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	rc = cxl_pcie_config_info(bus, devfn, afu, &record);
 	if (rc)
-		return rc;
+		goto out;
 
 	switch (len) {
 	case 1:
@@ -157,10 +175,9 @@ static int cxl_pcie_write_config(struct
 		WARN_ON(1);
 	}
 
-	if (rc)
-		return PCIBIOS_SET_FAILED;
-
-	return PCIBIOS_SUCCESSFUL;
+out:
+	cxl_afu_configured_put(afu);
+	return rc ? PCIBIOS_SET_FAILED : PCIBIOS_SUCCESSFUL;
 }
 
 static struct pci_ops cxl_pcie_pci_ops =
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/enclosure.c linux-libre-4.9.52-gnu/drivers/misc/enclosure.c
--- linux-libre-4.9-gnu/drivers/misc/enclosure.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/enclosure.c	2017-09-27 08:40:05.000000000 -0400
@@ -375,6 +375,7 @@ int enclosure_add_device(struct enclosur
 			 struct device *dev)
 {
 	struct enclosure_component *cdev;
+	int err;
 
 	if (!edev || component >= edev->components)
 		return -EINVAL;
@@ -384,12 +385,17 @@ int enclosure_add_device(struct enclosur
 	if (cdev->dev == dev)
 		return -EEXIST;
 
-	if (cdev->dev)
+	if (cdev->dev) {
 		enclosure_remove_links(cdev);
-
-	put_device(cdev->dev);
+		put_device(cdev->dev);
+	}
 	cdev->dev = get_device(dev);
-	return enclosure_add_links(cdev);
+	err = enclosure_add_links(cdev);
+	if (err) {
+		put_device(cdev->dev);
+		cdev->dev = NULL;
+	}
+	return err;
 }
 EXPORT_SYMBOL_GPL(enclosure_add_device);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/mei/bus.c linux-libre-4.9.52-gnu/drivers/misc/mei/bus.c
--- linux-libre-4.9-gnu/drivers/misc/mei/bus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/mei/bus.c	2017-09-27 08:40:05.000000000 -0400
@@ -408,7 +408,7 @@ bool mei_cldev_enabled(struct mei_cl_dev
 EXPORT_SYMBOL_GPL(mei_cldev_enabled);
 
 /**
- * mei_cldev_enable_device - enable me client device
+ * mei_cldev_enable - enable me client device
  *     create connection with me client
  *
  * @cldev: me client device
@@ -678,8 +678,10 @@ static ssize_t modalias_show(struct devi
 {
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
+	u8 version = mei_me_cl_ver(cldev->me_cl);
 
-	return scnprintf(buf, PAGE_SIZE, "mei:%s:%pUl:", cldev->name, uuid);
+	return scnprintf(buf, PAGE_SIZE, "mei:%s:%pUl:%02X:",
+			 cldev->name, uuid, version);
 }
 static DEVICE_ATTR_RO(modalias);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/mei/client.c linux-libre-4.9.52-gnu/drivers/misc/mei/client.c
--- linux-libre-4.9-gnu/drivers/misc/mei/client.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/mei/client.c	2017-09-27 08:40:05.000000000 -0400
@@ -425,7 +425,7 @@ static inline void mei_io_list_free(stru
  *
  * @cl: host client
  * @length: size of the buffer
- * @type: operation type
+ * @fop_type: operation type
  * @fp: associated file pointer (might be NULL)
  *
  * Return: cb on success and NULL on failure
@@ -459,7 +459,7 @@ struct mei_cl_cb *mei_cl_alloc_cb(struct
  *
  * @cl: host client
  * @length: size of the buffer
- * @type: operation type
+ * @fop_type: operation type
  * @fp: associated file pointer (might be NULL)
  *
  * Return: cb on success and NULL on failure
@@ -686,7 +686,7 @@ void mei_host_client_init(struct mei_dev
 
 	pm_runtime_mark_last_busy(dev->dev);
 	dev_dbg(dev->dev, "rpm: autosuspend\n");
-	pm_runtime_autosuspend(dev->dev);
+	pm_request_autosuspend(dev->dev);
 }
 
 /**
@@ -1536,7 +1536,7 @@ int mei_cl_irq_write(struct mei_cl *cl,
 
 	rets = first_chunk ? mei_cl_tx_flow_ctrl_creds(cl) : 1;
 	if (rets < 0)
-		return rets;
+		goto err;
 
 	if (rets == 0) {
 		cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
@@ -1570,11 +1570,8 @@ int mei_cl_irq_write(struct mei_cl *cl,
 			cb->buf.size, cb->buf_idx);
 
 	rets = mei_write_message(dev, &mei_hdr, buf->data + cb->buf_idx);
-	if (rets) {
-		cl->status = rets;
-		list_move_tail(&cb->list, &cmpl_list->list);
-		return rets;
-	}
+	if (rets)
+		goto err;
 
 	cl->status = 0;
 	cl->writing_state = MEI_WRITING;
@@ -1582,14 +1579,21 @@ int mei_cl_irq_write(struct mei_cl *cl,
 	cb->completed = mei_hdr.msg_complete == 1;
 
 	if (first_chunk) {
-		if (mei_cl_tx_flow_ctrl_creds_reduce(cl))
-			return -EIO;
+		if (mei_cl_tx_flow_ctrl_creds_reduce(cl)) {
+			rets = -EIO;
+			goto err;
+		}
 	}
 
 	if (mei_hdr.msg_complete)
 		list_move_tail(&cb->list, &dev->write_waiting_list.list);
 
 	return 0;
+
+err:
+	cl->status = rets;
+	list_move_tail(&cb->list, &cmpl_list->list);
+	return rets;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/mei/hw-me-regs.h linux-libre-4.9.52-gnu/drivers/misc/mei/hw-me-regs.h
--- linux-libre-4.9-gnu/drivers/misc/mei/hw-me-regs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/mei/hw-me-regs.h	2017-09-27 08:40:05.000000000 -0400
@@ -122,6 +122,8 @@
 #define MEI_DEV_ID_SPT_H      0xA13A  /* Sunrise Point H */
 #define MEI_DEV_ID_SPT_H_2    0xA13B  /* Sunrise Point H 2 */
 
+#define MEI_DEV_ID_LBG        0xA1BA  /* Lewisburg (SPT) */
+
 #define MEI_DEV_ID_BXT_M      0x1A9A  /* Broxton M */
 #define MEI_DEV_ID_APL_I      0x5A9A  /* Apollo Lake I */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/mei/main.c linux-libre-4.9.52-gnu/drivers/misc/mei/main.c
--- linux-libre-4.9-gnu/drivers/misc/mei/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/mei/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -182,32 +182,36 @@ static ssize_t mei_read(struct file *fil
 		goto out;
 	}
 
-	if (rets == -EBUSY &&
-	    !mei_cl_enqueue_ctrl_wr_cb(cl, length, MEI_FOP_READ, file)) {
-		rets = -ENOMEM;
-		goto out;
-	}
-
-	do {
-		mutex_unlock(&dev->device_lock);
 
-		if (wait_event_interruptible(cl->rx_wait,
-					     (!list_empty(&cl->rd_completed)) ||
-					     (!mei_cl_is_connected(cl)))) {
+again:
+	mutex_unlock(&dev->device_lock);
+	if (wait_event_interruptible(cl->rx_wait,
+				     !list_empty(&cl->rd_completed) ||
+				     !mei_cl_is_connected(cl))) {
+		if (signal_pending(current))
+			return -EINTR;
+		return -ERESTARTSYS;
+	}
+	mutex_lock(&dev->device_lock);
 
-			if (signal_pending(current))
-				return -EINTR;
-			return -ERESTARTSYS;
-		}
+	if (!mei_cl_is_connected(cl)) {
+		rets = -ENODEV;
+		goto out;
+	}
 
-		mutex_lock(&dev->device_lock);
-		if (!mei_cl_is_connected(cl)) {
-			rets = -ENODEV;
-			goto out;
-		}
+	cb = mei_cl_read_cb(cl, file);
+	if (!cb) {
+		/*
+		 * For amthif all the waiters are woken up,
+		 * but only fp with matching cb->fp get the cb,
+		 * the others have to return to wait on read.
+		 */
+		if (cl == &dev->iamthif_cl)
+			goto again;
 
-		cb = mei_cl_read_cb(cl, file);
-	} while (!cb);
+		rets = 0;
+		goto out;
+	}
 
 copy_buffer:
 	/* now copy the data to user space */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/mei/pci-me.c linux-libre-4.9.52-gnu/drivers/misc/mei/pci-me.c
--- linux-libre-4.9-gnu/drivers/misc/mei/pci-me.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/mei/pci-me.c	2017-09-27 08:40:05.000000000 -0400
@@ -87,6 +87,7 @@ static const struct pci_device_id mei_me
 	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, mei_me_pch8_cfg)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, mei_me_pch8_sps_cfg)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, mei_me_pch8_sps_cfg)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_LBG, mei_me_pch8_cfg)},
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, mei_me_pch8_cfg)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, mei_me_pch8_cfg)},
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/misc/mic/vop/vop_vringh.c linux-libre-4.9.52-gnu/drivers/misc/mic/vop/vop_vringh.c
--- linux-libre-4.9-gnu/drivers/misc/mic/vop/vop_vringh.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/misc/mic/vop/vop_vringh.c	2017-09-27 08:40:05.000000000 -0400
@@ -292,7 +292,6 @@ static int vop_virtio_add_device(struct
 	if (ret) {
 		dev_err(vop_dev(vdev), "%s %d err %d\n",
 			__func__, __LINE__, ret);
-		kfree(vdev);
 		return ret;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/card/mmc_test.c linux-libre-4.9.52-gnu/drivers/mmc/card/mmc_test.c
--- linux-libre-4.9-gnu/drivers/mmc/card/mmc_test.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/card/mmc_test.c	2017-09-27 08:40:05.000000000 -0400
@@ -818,7 +818,7 @@ static int mmc_test_nonblock_transfer(st
 	struct mmc_async_req *cur_areq = &test_areq[0].areq;
 	struct mmc_async_req *other_areq = &test_areq[1].areq;
 	int i;
-	int ret;
+	int ret = RESULT_OK;
 
 	test_areq[0].test = test;
 	test_areq[1].test = test;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/core/host.c linux-libre-4.9.52-gnu/drivers/mmc/core/host.c
--- linux-libre-4.9-gnu/drivers/mmc/core/host.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/core/host.c	2017-09-27 08:40:05.000000000 -0400
@@ -179,19 +179,17 @@ static void mmc_retune_timer(unsigned lo
  */
 int mmc_of_parse(struct mmc_host *host)
 {
-	struct device_node *np;
+	struct device *dev = host->parent;
 	u32 bus_width;
 	int ret;
 	bool cd_cap_invert, cd_gpio_invert = false;
 	bool ro_cap_invert, ro_gpio_invert = false;
 
-	if (!host->parent || !host->parent->of_node)
+	if (!dev || !dev_fwnode(dev))
 		return 0;
 
-	np = host->parent->of_node;
-
 	/* "bus-width" is translated to MMC_CAP_*_BIT_DATA flags */
-	if (of_property_read_u32(np, "bus-width", &bus_width) < 0) {
+	if (device_property_read_u32(dev, "bus-width", &bus_width) < 0) {
 		dev_dbg(host->parent,
 			"\"bus-width\" property is missing, assuming 1 bit.\n");
 		bus_width = 1;
@@ -213,7 +211,7 @@ int mmc_of_parse(struct mmc_host *host)
 	}
 
 	/* f_max is obtained from the optional "max-frequency" property */
-	of_property_read_u32(np, "max-frequency", &host->f_max);
+	device_property_read_u32(dev, "max-frequency", &host->f_max);
 
 	/*
 	 * Configure CD and WP pins. They are both by default active low to
@@ -228,12 +226,12 @@ int mmc_of_parse(struct mmc_host *host)
 	 */
 
 	/* Parse Card Detection */
-	if (of_property_read_bool(np, "non-removable")) {
+	if (device_property_read_bool(dev, "non-removable")) {
 		host->caps |= MMC_CAP_NONREMOVABLE;
 	} else {
-		cd_cap_invert = of_property_read_bool(np, "cd-inverted");
+		cd_cap_invert = device_property_read_bool(dev, "cd-inverted");
 
-		if (of_property_read_bool(np, "broken-cd"))
+		if (device_property_read_bool(dev, "broken-cd"))
 			host->caps |= MMC_CAP_NEEDS_POLL;
 
 		ret = mmc_gpiod_request_cd(host, "cd", 0, true,
@@ -259,7 +257,7 @@ int mmc_of_parse(struct mmc_host *host)
 	}
 
 	/* Parse Write Protection */
-	ro_cap_invert = of_property_read_bool(np, "wp-inverted");
+	ro_cap_invert = device_property_read_bool(dev, "wp-inverted");
 
 	ret = mmc_gpiod_request_ro(host, "wp", 0, false, 0, &ro_gpio_invert);
 	if (!ret)
@@ -267,62 +265,62 @@ int mmc_of_parse(struct mmc_host *host)
 	else if (ret != -ENOENT && ret != -ENOSYS)
 		return ret;
 
-	if (of_property_read_bool(np, "disable-wp"))
+	if (device_property_read_bool(dev, "disable-wp"))
 		host->caps2 |= MMC_CAP2_NO_WRITE_PROTECT;
 
 	/* See the comment on CD inversion above */
 	if (ro_cap_invert ^ ro_gpio_invert)
 		host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
 
-	if (of_property_read_bool(np, "cap-sd-highspeed"))
+	if (device_property_read_bool(dev, "cap-sd-highspeed"))
 		host->caps |= MMC_CAP_SD_HIGHSPEED;
-	if (of_property_read_bool(np, "cap-mmc-highspeed"))
+	if (device_property_read_bool(dev, "cap-mmc-highspeed"))
 		host->caps |= MMC_CAP_MMC_HIGHSPEED;
-	if (of_property_read_bool(np, "sd-uhs-sdr12"))
+	if (device_property_read_bool(dev, "sd-uhs-sdr12"))
 		host->caps |= MMC_CAP_UHS_SDR12;
-	if (of_property_read_bool(np, "sd-uhs-sdr25"))
+	if (device_property_read_bool(dev, "sd-uhs-sdr25"))
 		host->caps |= MMC_CAP_UHS_SDR25;
-	if (of_property_read_bool(np, "sd-uhs-sdr50"))
+	if (device_property_read_bool(dev, "sd-uhs-sdr50"))
 		host->caps |= MMC_CAP_UHS_SDR50;
-	if (of_property_read_bool(np, "sd-uhs-sdr104"))
+	if (device_property_read_bool(dev, "sd-uhs-sdr104"))
 		host->caps |= MMC_CAP_UHS_SDR104;
-	if (of_property_read_bool(np, "sd-uhs-ddr50"))
+	if (device_property_read_bool(dev, "sd-uhs-ddr50"))
 		host->caps |= MMC_CAP_UHS_DDR50;
-	if (of_property_read_bool(np, "cap-power-off-card"))
+	if (device_property_read_bool(dev, "cap-power-off-card"))
 		host->caps |= MMC_CAP_POWER_OFF_CARD;
-	if (of_property_read_bool(np, "cap-mmc-hw-reset"))
+	if (device_property_read_bool(dev, "cap-mmc-hw-reset"))
 		host->caps |= MMC_CAP_HW_RESET;
-	if (of_property_read_bool(np, "cap-sdio-irq"))
+	if (device_property_read_bool(dev, "cap-sdio-irq"))
 		host->caps |= MMC_CAP_SDIO_IRQ;
-	if (of_property_read_bool(np, "full-pwr-cycle"))
+	if (device_property_read_bool(dev, "full-pwr-cycle"))
 		host->caps2 |= MMC_CAP2_FULL_PWR_CYCLE;
-	if (of_property_read_bool(np, "keep-power-in-suspend"))
+	if (device_property_read_bool(dev, "keep-power-in-suspend"))
 		host->pm_caps |= MMC_PM_KEEP_POWER;
-	if (of_property_read_bool(np, "wakeup-source") ||
-	    of_property_read_bool(np, "enable-sdio-wakeup")) /* legacy */
+	if (device_property_read_bool(dev, "wakeup-source") ||
+	    device_property_read_bool(dev, "enable-sdio-wakeup")) /* legacy */
 		host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
-	if (of_property_read_bool(np, "mmc-ddr-1_8v"))
+	if (device_property_read_bool(dev, "mmc-ddr-1_8v"))
 		host->caps |= MMC_CAP_1_8V_DDR;
-	if (of_property_read_bool(np, "mmc-ddr-1_2v"))
+	if (device_property_read_bool(dev, "mmc-ddr-1_2v"))
 		host->caps |= MMC_CAP_1_2V_DDR;
-	if (of_property_read_bool(np, "mmc-hs200-1_8v"))
+	if (device_property_read_bool(dev, "mmc-hs200-1_8v"))
 		host->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
-	if (of_property_read_bool(np, "mmc-hs200-1_2v"))
+	if (device_property_read_bool(dev, "mmc-hs200-1_2v"))
 		host->caps2 |= MMC_CAP2_HS200_1_2V_SDR;
-	if (of_property_read_bool(np, "mmc-hs400-1_8v"))
+	if (device_property_read_bool(dev, "mmc-hs400-1_8v"))
 		host->caps2 |= MMC_CAP2_HS400_1_8V | MMC_CAP2_HS200_1_8V_SDR;
-	if (of_property_read_bool(np, "mmc-hs400-1_2v"))
+	if (device_property_read_bool(dev, "mmc-hs400-1_2v"))
 		host->caps2 |= MMC_CAP2_HS400_1_2V | MMC_CAP2_HS200_1_2V_SDR;
-	if (of_property_read_bool(np, "mmc-hs400-enhanced-strobe"))
+	if (device_property_read_bool(dev, "mmc-hs400-enhanced-strobe"))
 		host->caps2 |= MMC_CAP2_HS400_ES;
-	if (of_property_read_bool(np, "no-sdio"))
+	if (device_property_read_bool(dev, "no-sdio"))
 		host->caps2 |= MMC_CAP2_NO_SDIO;
-	if (of_property_read_bool(np, "no-sd"))
+	if (device_property_read_bool(dev, "no-sd"))
 		host->caps2 |= MMC_CAP2_NO_SD;
-	if (of_property_read_bool(np, "no-mmc"))
+	if (device_property_read_bool(dev, "no-mmc"))
 		host->caps2 |= MMC_CAP2_NO_MMC;
 
-	host->dsr_req = !of_property_read_u32(np, "dsr", &host->dsr);
+	host->dsr_req = !device_property_read_u32(dev, "dsr", &host->dsr);
 	if (host->dsr_req && (host->dsr & ~0xffff)) {
 		dev_err(host->parent,
 			"device tree specified broken value for DSR: 0x%x, ignoring\n",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/core/mmc.c linux-libre-4.9.52-gnu/drivers/mmc/core/mmc.c
--- linux-libre-4.9-gnu/drivers/mmc/core/mmc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/core/mmc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1258,7 +1258,7 @@ out_err:
 static int mmc_select_hs400es(struct mmc_card *card)
 {
 	struct mmc_host *host = card->host;
-	int err = 0;
+	int err = -EINVAL;
 	u8 val;
 
 	if (!(host->caps & MMC_CAP_8_BIT_DATA)) {
@@ -1690,10 +1690,10 @@ static int mmc_init_card(struct mmc_host
 		err = mmc_select_hs400(card);
 		if (err)
 			goto free_card;
-	} else if (mmc_card_hs(card)) {
+	} else if (!mmc_card_hs400es(card)) {
 		/* Select the desired bus width optionally */
 		err = mmc_select_bus_width(card);
-		if (err > 0) {
+		if (err > 0 && mmc_card_hs(card)) {
 			err = mmc_select_hs_ddr(card);
 			if (err)
 				goto free_card;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/core/sd.c linux-libre-4.9.52-gnu/drivers/mmc/core/sd.c
--- linux-libre-4.9-gnu/drivers/mmc/core/sd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/core/sd.c	2017-09-27 08:40:05.000000000 -0400
@@ -223,6 +223,7 @@ static int mmc_decode_scr(struct mmc_car
 static int mmc_read_ssr(struct mmc_card *card)
 {
 	unsigned int au, es, et, eo;
+	u32 *raw_ssr;
 	int i;
 
 	if (!(card->csd.cmdclass & CCC_APP_SPEC)) {
@@ -231,14 +232,21 @@ static int mmc_read_ssr(struct mmc_card
 		return 0;
 	}
 
-	if (mmc_app_sd_status(card, card->raw_ssr)) {
+	raw_ssr = kmalloc(sizeof(card->raw_ssr), GFP_KERNEL);
+	if (!raw_ssr)
+		return -ENOMEM;
+
+	if (mmc_app_sd_status(card, raw_ssr)) {
 		pr_warn("%s: problem reading SD Status register\n",
 			mmc_hostname(card->host));
+		kfree(raw_ssr);
 		return 0;
 	}
 
 	for (i = 0; i < 16; i++)
-		card->raw_ssr[i] = be32_to_cpu(card->raw_ssr[i]);
+		card->raw_ssr[i] = be32_to_cpu(raw_ssr[i]);
+
+	kfree(raw_ssr);
 
 	/*
 	 * UNSTUFF_BITS only works with four u32s so we have to offset the
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/dw_mmc.c linux-libre-4.9.52-gnu/drivers/mmc/host/dw_mmc.c
--- linux-libre-4.9-gnu/drivers/mmc/host/dw_mmc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/dw_mmc.c	2017-09-27 08:40:05.000000000 -0400
@@ -2610,8 +2610,8 @@ static int dw_mci_init_slot(struct dw_mc
 	host->slot[id] = slot;
 
 	mmc->ops = &dw_mci_ops;
-	if (of_property_read_u32_array(host->dev->of_node,
-				       "clock-freq-min-max", freq, 2)) {
+	if (device_property_read_u32_array(host->dev, "clock-freq-min-max",
+					   freq, 2)) {
 		mmc->f_min = DW_MCI_FREQ_MIN;
 		mmc->f_max = DW_MCI_FREQ_MAX;
 	} else {
@@ -2709,7 +2709,6 @@ static void dw_mci_init_dma(struct dw_mc
 {
 	int addr_config;
 	struct device *dev = host->dev;
-	struct device_node *np = dev->of_node;
 
 	/*
 	* Check tansfer mode from HCON[17:16]
@@ -2770,8 +2769,9 @@ static void dw_mci_init_dma(struct dw_mc
 		dev_info(host->dev, "Using internal DMA controller.\n");
 	} else {
 		/* TRANS_MODE_EDMAC: check dma bindings again */
-		if ((of_property_count_strings(np, "dma-names") < 0) ||
-		    (!of_find_property(np, "dmas", NULL))) {
+		if ((device_property_read_string_array(dev, "dma-names",
+						       NULL, 0) < 0) ||
+		    !device_property_present(dev, "dmas")) {
 			goto no_dma;
 		}
 		host->dma_ops = &dw_mci_edmac_ops;
@@ -2931,7 +2931,6 @@ static struct dw_mci_board *dw_mci_parse
 {
 	struct dw_mci_board *pdata;
 	struct device *dev = host->dev;
-	struct device_node *np = dev->of_node;
 	const struct dw_mci_drv_data *drv_data = host->drv_data;
 	int ret;
 	u32 clock_frequency;
@@ -2948,15 +2947,16 @@ static struct dw_mci_board *dw_mci_parse
 	}
 
 	/* find out number of slots supported */
-	of_property_read_u32(np, "num-slots", &pdata->num_slots);
+	device_property_read_u32(dev, "num-slots", &pdata->num_slots);
 
-	if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth))
+	if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth))
 		dev_info(dev,
 			 "fifo-depth property not found, using value of FIFOTH register as default\n");
 
-	of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms);
+	device_property_read_u32(dev, "card-detect-delay",
+				 &pdata->detect_delay_ms);
 
-	if (!of_property_read_u32(np, "clock-frequency", &clock_frequency))
+	if (!device_property_read_u32(dev, "clock-frequency", &clock_frequency))
 		pdata->bus_hz = clock_frequency;
 
 	if (drv_data && drv_data->parse_dt) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/mxs-mmc.c linux-libre-4.9.52-gnu/drivers/mmc/host/mxs-mmc.c
--- linux-libre-4.9-gnu/drivers/mmc/host/mxs-mmc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/mxs-mmc.c	2017-09-27 08:40:05.000000000 -0400
@@ -309,6 +309,9 @@ static void mxs_mmc_ac(struct mxs_mmc_ho
 	cmd0 = BF_SSP(cmd->opcode, CMD0_CMD);
 	cmd1 = cmd->arg;
 
+	if (cmd->opcode == MMC_STOP_TRANSMISSION)
+		cmd0 |= BM_SSP_CMD0_APPEND_8CYC;
+
 	if (host->sdio_irq_en) {
 		ctrl0 |= BM_SSP_CTRL0_SDIO_IRQ_CHECK;
 		cmd0 |= BM_SSP_CMD0_CONT_CLKING_EN | BM_SSP_CMD0_SLOW_CLKING_EN;
@@ -417,8 +420,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_
 		       ssp->base + HW_SSP_BLOCK_SIZE);
 	}
 
-	if ((cmd->opcode == MMC_STOP_TRANSMISSION) ||
-	    (cmd->opcode == SD_IO_RW_EXTENDED))
+	if (cmd->opcode == SD_IO_RW_EXTENDED)
 		cmd0 |= BM_SSP_CMD0_APPEND_8CYC;
 
 	cmd1 = cmd->arg;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci-acpi.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-acpi.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci-acpi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-acpi.c	2017-09-27 08:40:05.000000000 -0400
@@ -394,7 +394,8 @@ static int sdhci_acpi_probe(struct platf
 	/* Power on the SDHCI controller and its children */
 	acpi_device_fix_up_power(device);
 	list_for_each_entry(child, &device->children, node)
-		acpi_device_fix_up_power(child);
+		if (child->status.present && child->status.enabled)
+			acpi_device_fix_up_power(child);
 
 	if (acpi_bus_get_status(device) || !device->status.present)
 		return -ENODEV;
@@ -465,7 +466,10 @@ static int sdhci_acpi_probe(struct platf
 	if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
 		bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL);
 
-		if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL)) {
+		err = mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL);
+		if (err) {
+			if (err == -EPROBE_DEFER)
+				goto err_free;
 			dev_warn(dev, "failed to setup card detect gpio\n");
 			c->use_runtime_pm = false;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci.c	2017-09-27 08:40:05.000000000 -0400
@@ -1371,7 +1371,9 @@ void sdhci_set_clock(struct sdhci_host *
 			return;
 		}
 		timeout--;
-		mdelay(1);
+		spin_unlock_irq(&host->lock);
+		usleep_range(900, 1100);
+		spin_lock_irq(&host->lock);
 	}
 
 	clk |= SDHCI_CLOCK_CARD_EN;
@@ -1821,6 +1823,9 @@ static void sdhci_enable_sdio_irq(struct
 	struct sdhci_host *host = mmc_priv(mmc);
 	unsigned long flags;
 
+	if (enable)
+		pm_runtime_get_noresume(host->mmc->parent);
+
 	spin_lock_irqsave(&host->lock, flags);
 	if (enable)
 		host->flags |= SDHCI_SDIO_IRQ_ENABLED;
@@ -1829,6 +1834,9 @@ static void sdhci_enable_sdio_irq(struct
 
 	sdhci_enable_sdio_irq_nolock(host, enable);
 	spin_unlock_irqrestore(&host->lock, flags);
+
+	if (!enable)
+		pm_runtime_put_noidle(host->mmc->parent);
 }
 
 static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
@@ -2086,16 +2094,32 @@ static int sdhci_execute_tuning(struct m
 
 		if (!host->tuning_done) {
 			pr_info(DRIVER_NAME ": Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock\n");
-
-			sdhci_do_reset(host, SDHCI_RESET_CMD);
-			sdhci_do_reset(host, SDHCI_RESET_DATA);
-
 			ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
 			ctrl &= ~SDHCI_CTRL_TUNED_CLK;
 			ctrl &= ~SDHCI_CTRL_EXEC_TUNING;
 			sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
 
+			sdhci_do_reset(host, SDHCI_RESET_CMD);
+			sdhci_do_reset(host, SDHCI_RESET_DATA);
+
 			err = -EIO;
+
+			if (cmd.opcode != MMC_SEND_TUNING_BLOCK_HS200)
+				goto out;
+
+			sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
+			sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
+
+			spin_unlock_irqrestore(&host->lock, flags);
+
+			memset(&cmd, 0, sizeof(cmd));
+			cmd.opcode = MMC_STOP_TRANSMISSION;
+			cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
+			cmd.busy_timeout = 50;
+			mmc_wait_for_cmd(mmc, &cmd, 0);
+
+			spin_lock_irqsave(&host->lock, flags);
+
 			goto out;
 		}
 
@@ -2703,7 +2727,8 @@ static irqreturn_t sdhci_irq(int irq, vo
 		if (intmask & SDHCI_INT_RETUNE)
 			mmc_retune_needed(host->mmc);
 
-		if (intmask & SDHCI_INT_CARD_INT) {
+		if ((intmask & SDHCI_INT_CARD_INT) &&
+		    (host->ier & SDHCI_INT_CARD_INT)) {
 			sdhci_enable_sdio_irq_nolock(host, false);
 			host->thread_isr |= SDHCI_INT_CARD_INT;
 			result = IRQ_WAKE_THREAD;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci-esdhc-imx.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-esdhc-imx.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci-esdhc-imx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-esdhc-imx.c	2017-09-27 08:40:05.000000000 -0400
@@ -830,6 +830,7 @@ static int esdhc_change_pinstate(struct
 
 	switch (uhs) {
 	case MMC_TIMING_UHS_SDR50:
+	case MMC_TIMING_UHS_DDR50:
 		pinctrl = imx_data->pins_100mhz;
 		break;
 	case MMC_TIMING_UHS_SDR104:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci-iproc.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-iproc.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci-iproc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-iproc.c	2017-09-27 08:40:05.000000000 -0400
@@ -157,7 +157,8 @@ static const struct sdhci_ops sdhci_ipro
 };
 
 static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = {
-	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
+	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+		  SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
 	.quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN,
 	.ops = &sdhci_iproc_ops,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci-of-arasan.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-of-arasan.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci-of-arasan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-of-arasan.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,13 +28,9 @@
 #include "sdhci-pltfm.h"
 #include <linux/of.h>
 
-#define SDHCI_ARASAN_CLK_CTRL_OFFSET	0x2c
 #define SDHCI_ARASAN_VENDOR_REGISTER	0x78
 
 #define VENDOR_ENHANCED_STROBE		BIT(0)
-#define CLK_CTRL_TIMEOUT_SHIFT		16
-#define CLK_CTRL_TIMEOUT_MASK		(0xf << CLK_CTRL_TIMEOUT_SHIFT)
-#define CLK_CTRL_TIMEOUT_MIN_EXP	13
 
 #define PHY_CLK_TOO_SLOW_HZ		400000
 
@@ -163,15 +159,15 @@ static int sdhci_arasan_syscon_write(str
 
 static unsigned int sdhci_arasan_get_timeout_clock(struct sdhci_host *host)
 {
-	u32 div;
 	unsigned long freq;
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 
-	div = readl(host->ioaddr + SDHCI_ARASAN_CLK_CTRL_OFFSET);
-	div = (div & CLK_CTRL_TIMEOUT_MASK) >> CLK_CTRL_TIMEOUT_SHIFT;
+	/* SDHCI timeout clock is in kHz */
+	freq = DIV_ROUND_UP(clk_get_rate(pltfm_host->clk), 1000);
 
-	freq = clk_get_rate(pltfm_host->clk);
-	freq /= 1 << (CLK_CTRL_TIMEOUT_MIN_EXP + div);
+	/* or in MHz */
+	if (host->caps & SDHCI_TIMEOUT_CLK_UNIT)
+		freq = DIV_ROUND_UP(freq, 1000);
 
 	return freq;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci-of-at91.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-of-at91.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci-of-at91.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-of-at91.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,6 +29,9 @@
 
 #include "sdhci-pltfm.h"
 
+#define SDMMC_MC1R	0x204
+#define		SDMMC_MC1R_DDR		BIT(3)
+#define		SDMMC_MC1R_FCD		BIT(7)
 #define SDMMC_CACR	0x230
 #define		SDMMC_CACR_CAPWREN	BIT(0)
 #define		SDMMC_CACR_KEY		(0x46 << 8)
@@ -41,6 +44,15 @@ struct sdhci_at91_priv {
 	struct clk *mainck;
 };
 
+static void sdhci_at91_set_force_card_detect(struct sdhci_host *host)
+{
+	u8 mc1r;
+
+	mc1r = readb(host->ioaddr + SDMMC_MC1R);
+	mc1r |= SDMMC_MC1R_FCD;
+	writeb(mc1r, host->ioaddr + SDMMC_MC1R);
+}
+
 static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
 {
 	u16 clk;
@@ -85,11 +97,45 @@ static void sdhci_at91_set_clock(struct
 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
 }
 
+/*
+ * In this specific implementation of the SDHCI controller, the power register
+ * needs to have a valid voltage set even when the power supply is managed by
+ * an external regulator.
+ */
+static void sdhci_at91_set_power(struct sdhci_host *host, unsigned char mode,
+		     unsigned short vdd)
+{
+	if (!IS_ERR(host->mmc->supply.vmmc)) {
+		struct mmc_host *mmc = host->mmc;
+
+		spin_unlock_irq(&host->lock);
+		mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+		spin_lock_irq(&host->lock);
+	}
+	sdhci_set_power_noreg(host, mode, vdd);
+}
+
+void sdhci_at91_set_uhs_signaling(struct sdhci_host *host, unsigned int timing)
+{
+	if (timing == MMC_TIMING_MMC_DDR52)
+		sdhci_writeb(host, SDMMC_MC1R_DDR, SDMMC_MC1R);
+	sdhci_set_uhs_signaling(host, timing);
+}
+
+static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
+{
+	sdhci_reset(host, mask);
+
+	if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+		sdhci_at91_set_force_card_detect(host);
+}
+
 static const struct sdhci_ops sdhci_at91_sama5d2_ops = {
 	.set_clock		= sdhci_at91_set_clock,
 	.set_bus_width		= sdhci_set_bus_width,
-	.reset			= sdhci_reset,
-	.set_uhs_signaling	= sdhci_set_uhs_signaling,
+	.reset			= sdhci_at91_reset,
+	.set_uhs_signaling	= sdhci_at91_set_uhs_signaling,
+	.set_power		= sdhci_at91_set_power,
 };
 
 static const struct sdhci_pltfm_data soc_data_sama5d2 = {
@@ -294,6 +340,21 @@ static int sdhci_at91_probe(struct platf
 		host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
 	}
 
+	/*
+	 * If the device attached to the MMC bus is not removable, it is safer
+	 * to set the Force Card Detect bit. People often don't connect the
+	 * card detect signal and use this pin for another purpose. If the card
+	 * detect pin is not muxed to SDHCI controller, a default value is
+	 * used. This value can be different from a SoC revision to another
+	 * one. Problems come when this default value is not card present. To
+	 * avoid this case, if the device is non removable then the card
+	 * detection procedure using the SDMCC_CD signal is bypassed.
+	 * This bit is reset when a software reset for all command is performed
+	 * so we need to implement our own reset function to set back this bit.
+	 */
+	if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+		sdhci_at91_set_force_card_detect(host);
+
 	pm_runtime_put_autosuspend(&pdev->dev);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci-of-esdhc.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-of-esdhc.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci-of-esdhc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-of-esdhc.c	2017-09-27 08:40:05.000000000 -0400
@@ -559,16 +559,19 @@ static const struct sdhci_ops sdhci_esdh
 };
 
 static const struct sdhci_pltfm_data sdhci_esdhc_be_pdata = {
-	.quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION
-		| SDHCI_QUIRK_NO_CARD_NO_RESET
-		| SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+	.quirks = ESDHC_DEFAULT_QUIRKS |
+#ifdef CONFIG_PPC
+		  SDHCI_QUIRK_BROKEN_CARD_DETECTION |
+#endif
+		  SDHCI_QUIRK_NO_CARD_NO_RESET |
+		  SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
 	.ops = &sdhci_esdhc_be_ops,
 };
 
 static const struct sdhci_pltfm_data sdhci_esdhc_le_pdata = {
-	.quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION
-		| SDHCI_QUIRK_NO_CARD_NO_RESET
-		| SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+	.quirks = ESDHC_DEFAULT_QUIRKS |
+		  SDHCI_QUIRK_NO_CARD_NO_RESET |
+		  SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
 	.ops = &sdhci_esdhc_le_ops,
 };
 
@@ -623,8 +626,7 @@ static int sdhci_esdhc_probe(struct plat
 	    of_device_is_compatible(np, "fsl,p5020-esdhc") ||
 	    of_device_is_compatible(np, "fsl,p4080-esdhc") ||
 	    of_device_is_compatible(np, "fsl,p1020-esdhc") ||
-	    of_device_is_compatible(np, "fsl,t1040-esdhc") ||
-	    of_device_is_compatible(np, "fsl,ls1021a-esdhc"))
+	    of_device_is_compatible(np, "fsl,t1040-esdhc"))
 		host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
 
 	if (of_device_is_compatible(np, "fsl,ls1021a-esdhc"))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/sdhci-pci-core.c linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-pci-core.c
--- linux-libre-4.9-gnu/drivers/mmc/host/sdhci-pci-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/sdhci-pci-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -412,6 +412,8 @@ static void sdhci_intel_set_power(struct
 	if (mode == MMC_POWER_OFF)
 		return;
 
+	spin_unlock_irq(&host->lock);
+
 	/*
 	 * Bus power might not enable after D3 -> D0 transition due to the
 	 * present state not yet having propagated. Retry for up to 2ms.
@@ -424,6 +426,8 @@ static void sdhci_intel_set_power(struct
 		reg |= SDHCI_POWER_ON;
 		sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
 	}
+
+	spin_lock_irq(&host->lock);
 }
 
 static const struct sdhci_ops sdhci_intel_byt_ops = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mmc/host/ushc.c linux-libre-4.9.52-gnu/drivers/mmc/host/ushc.c
--- linux-libre-4.9-gnu/drivers/mmc/host/ushc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mmc/host/ushc.c	2017-09-27 08:40:05.000000000 -0400
@@ -426,6 +426,9 @@ static int ushc_probe(struct usb_interfa
 	struct ushc_data *ushc;
 	int ret;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	mmc = mmc_alloc_host(sizeof(struct ushc_data), &intf->dev);
 	if (mmc == NULL)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/bcm47xxpart.c linux-libre-4.9.52-gnu/drivers/mtd/bcm47xxpart.c
--- linux-libre-4.9-gnu/drivers/mtd/bcm47xxpart.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/bcm47xxpart.c	2017-09-27 08:40:05.000000000 -0400
@@ -229,12 +229,10 @@ static int bcm47xxpart_parse(struct mtd_
 
 			last_trx_part = curr_part - 1;
 
-			/*
-			 * We have whole TRX scanned, skip to the next part. Use
-			 * roundown (not roundup), as the loop will increase
-			 * offset in next step.
-			 */
-			offset = rounddown(offset + trx->length, blocksize);
+			/* Jump to the end of TRX */
+			offset = roundup(offset + trx->length, blocksize);
+			/* Next loop iteration will increase the offset */
+			offset -= blocksize;
 			continue;
 		}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/maps/pmcmsp-flash.c linux-libre-4.9.52-gnu/drivers/mtd/maps/pmcmsp-flash.c
--- linux-libre-4.9-gnu/drivers/mtd/maps/pmcmsp-flash.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/maps/pmcmsp-flash.c	2017-09-27 08:40:05.000000000 -0400
@@ -139,15 +139,13 @@ static int __init init_msp_flash(void)
 		}
 
 		msp_maps[i].bankwidth = 1;
-		msp_maps[i].name = kmalloc(7, GFP_KERNEL);
+		msp_maps[i].name = kstrndup(flash_name, 7, GFP_KERNEL);
 		if (!msp_maps[i].name) {
 			iounmap(msp_maps[i].virt);
 			kfree(msp_parts[i]);
 			goto cleanup_loop;
 		}
 
-		msp_maps[i].name = strncpy(msp_maps[i].name, flash_name, 7);
-
 		for (j = 0; j < pcnt; j++) {
 			part_name[5] = '0' + i;
 			part_name[7] = '0' + j;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/brcmnand/brcmnand.c linux-libre-4.9.52-gnu/drivers/mtd/nand/brcmnand/brcmnand.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/brcmnand/brcmnand.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/brcmnand/brcmnand.c	2017-09-27 08:40:05.000000000 -0400
@@ -101,6 +101,9 @@ struct brcm_nand_dma_desc {
 #define BRCMNAND_MIN_BLOCKSIZE	(8 * 1024)
 #define BRCMNAND_MIN_DEVSIZE	(4ULL * 1024 * 1024)
 
+#define NAND_CTRL_RDY			(INTFC_CTLR_READY | INTFC_FLASH_READY)
+#define NAND_POLL_STATUS_TIMEOUT_MS	100
+
 /* Controller feature flags */
 enum {
 	BRCMNAND_HAS_1K_SECTORS			= BIT(0),
@@ -765,6 +768,31 @@ enum {
 	CS_SELECT_AUTO_DEVICE_ID_CFG		= BIT(30),
 };
 
+static int bcmnand_ctrl_poll_status(struct brcmnand_controller *ctrl,
+				    u32 mask, u32 expected_val,
+				    unsigned long timeout_ms)
+{
+	unsigned long limit;
+	u32 val;
+
+	if (!timeout_ms)
+		timeout_ms = NAND_POLL_STATUS_TIMEOUT_MS;
+
+	limit = jiffies + msecs_to_jiffies(timeout_ms);
+	do {
+		val = brcmnand_read_reg(ctrl, BRCMNAND_INTFC_STATUS);
+		if ((val & mask) == expected_val)
+			return 0;
+
+		cpu_relax();
+	} while (time_after(limit, jiffies));
+
+	dev_warn(ctrl->dev, "timeout on status poll (expected %x got %x)\n",
+		 expected_val, val & mask);
+
+	return -ETIMEDOUT;
+}
+
 static inline void brcmnand_set_wp(struct brcmnand_controller *ctrl, bool en)
 {
 	u32 val = en ? CS_SELECT_NAND_WP : 0;
@@ -1024,12 +1052,39 @@ static void brcmnand_wp(struct mtd_info
 
 	if ((ctrl->features & BRCMNAND_HAS_WP) && wp_on == 1) {
 		static int old_wp = -1;
+		int ret;
 
 		if (old_wp != wp) {
 			dev_dbg(ctrl->dev, "WP %s\n", wp ? "on" : "off");
 			old_wp = wp;
 		}
+
+		/*
+		 * make sure ctrl/flash ready before and after
+		 * changing state of #WP pin
+		 */
+		ret = bcmnand_ctrl_poll_status(ctrl, NAND_CTRL_RDY |
+					       NAND_STATUS_READY,
+					       NAND_CTRL_RDY |
+					       NAND_STATUS_READY, 0);
+		if (ret)
+			return;
+
 		brcmnand_set_wp(ctrl, wp);
+		chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
+		/* NAND_STATUS_WP 0x00 = protected, 0x80 = not protected */
+		ret = bcmnand_ctrl_poll_status(ctrl,
+					       NAND_CTRL_RDY |
+					       NAND_STATUS_READY |
+					       NAND_STATUS_WP,
+					       NAND_CTRL_RDY |
+					       NAND_STATUS_READY |
+					       (wp ? 0 : NAND_STATUS_WP), 0);
+
+		if (ret)
+			dev_err_ratelimited(&host->pdev->dev,
+					    "nand #WP expected %s\n",
+					    wp ? "on" : "off");
 	}
 }
 
@@ -1157,15 +1212,15 @@ static irqreturn_t brcmnand_dma_irq(int
 static void brcmnand_send_cmd(struct brcmnand_host *host, int cmd)
 {
 	struct brcmnand_controller *ctrl = host->ctrl;
-	u32 intfc;
+	int ret;
 
 	dev_dbg(ctrl->dev, "send native cmd %d addr_lo 0x%x\n", cmd,
 		brcmnand_read_reg(ctrl, BRCMNAND_CMD_ADDRESS));
 	BUG_ON(ctrl->cmd_pending != 0);
 	ctrl->cmd_pending = cmd;
 
-	intfc = brcmnand_read_reg(ctrl, BRCMNAND_INTFC_STATUS);
-	WARN_ON(!(intfc & INTFC_CTLR_READY));
+	ret = bcmnand_ctrl_poll_status(ctrl, NAND_CTRL_RDY, NAND_CTRL_RDY, 0);
+	WARN_ON(ret);
 
 	mb(); /* flush previous writes */
 	brcmnand_write_reg(ctrl, BRCMNAND_CMD_START,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/fsl_ifc_nand.c linux-libre-4.9.52-gnu/drivers/mtd/nand/fsl_ifc_nand.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/fsl_ifc_nand.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/fsl_ifc_nand.c	2017-09-27 08:40:05.000000000 -0400
@@ -258,9 +258,15 @@ static void fsl_ifc_run_command(struct m
 		int bufnum = nctrl->page & priv->bufnum_mask;
 		int sector = bufnum * chip->ecc.steps;
 		int sector_end = sector + chip->ecc.steps - 1;
+		__be32 *eccstat_regs;
+
+		if (ctrl->version >= FSL_IFC_VERSION_2_0_0)
+			eccstat_regs = ifc->ifc_nand.v2_nand_eccstat;
+		else
+			eccstat_regs = ifc->ifc_nand.v1_nand_eccstat;
 
 		for (i = sector / 4; i <= sector_end / 4; i++)
-			eccstat[i] = ifc_in32(&ifc->ifc_nand.nand_eccstat[i]);
+			eccstat[i] = ifc_in32(&eccstat_regs[i]);
 
 		for (i = sector; i <= sector_end; i++) {
 			errors = check_read_ecc(mtd, ctrl, eccstat, i);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/Kconfig linux-libre-4.9.52-gnu/drivers/mtd/nand/Kconfig
--- linux-libre-4.9-gnu/drivers/mtd/nand/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -537,7 +537,7 @@ config MTD_NAND_FSMC
 	  Flexible Static Memory Controller (FSMC)
 
 config MTD_NAND_XWAY
-	tristate "Support for NAND on Lantiq XWAY SoC"
+	bool "Support for NAND on Lantiq XWAY SoC"
 	depends on LANTIQ && SOC_TYPE_XWAY
 	help
 	  Enables support for NAND Flash chips on Lantiq XWAY SoCs. NAND is attached
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/lpc32xx_mlc.c linux-libre-4.9.52-gnu/drivers/mtd/nand/lpc32xx_mlc.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/lpc32xx_mlc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/lpc32xx_mlc.c	2017-09-27 08:40:05.000000000 -0400
@@ -776,7 +776,7 @@ static int lpc32xx_nand_probe(struct pla
 	init_completion(&host->comp_controller);
 
 	host->irq = platform_get_irq(pdev, 0);
-	if ((host->irq < 0) || (host->irq >= NR_IRQS)) {
+	if (host->irq < 0) {
 		dev_err(&pdev->dev, "failed to get platform irq\n");
 		res = -EINVAL;
 		goto err_exit3;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/mxc_nand.c linux-libre-4.9.52-gnu/drivers/mtd/nand/mxc_nand.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/mxc_nand.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/mxc_nand.c	2017-09-27 08:40:05.000000000 -0400
@@ -877,6 +877,8 @@ static void mxc_do_addr_cycle(struct mtd
 	}
 }
 
+#define MXC_V1_ECCBYTES		5
+
 static int mxc_v1_ooblayout_ecc(struct mtd_info *mtd, int section,
 				struct mtd_oob_region *oobregion)
 {
@@ -886,7 +888,7 @@ static int mxc_v1_ooblayout_ecc(struct m
 		return -ERANGE;
 
 	oobregion->offset = (section * 16) + 6;
-	oobregion->length = nand_chip->ecc.bytes;
+	oobregion->length = MXC_V1_ECCBYTES;
 
 	return 0;
 }
@@ -908,8 +910,7 @@ static int mxc_v1_ooblayout_free(struct
 			oobregion->length = 4;
 		}
 	} else {
-		oobregion->offset = ((section - 1) * 16) +
-				    nand_chip->ecc.bytes + 6;
+		oobregion->offset = ((section - 1) * 16) + MXC_V1_ECCBYTES + 6;
 		if (section < nand_chip->ecc.steps)
 			oobregion->length = (section * 16) + 6 -
 					    oobregion->offset;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/nand_base.c linux-libre-4.9.52-gnu/drivers/mtd/nand/nand_base.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/nand_base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/nand_base.c	2017-09-27 08:40:05.000000000 -0400
@@ -64,8 +64,14 @@ static int nand_ooblayout_ecc_sp(struct
 
 	if (!section) {
 		oobregion->offset = 0;
-		oobregion->length = 4;
+		if (mtd->oobsize == 16)
+			oobregion->length = 4;
+		else
+			oobregion->length = 3;
 	} else {
+		if (mtd->oobsize == 8)
+			return -ERANGE;
+
 		oobregion->offset = 6;
 		oobregion->length = ecc->total - 4;
 	}
@@ -138,6 +144,74 @@ const struct mtd_ooblayout_ops nand_oobl
 };
 EXPORT_SYMBOL_GPL(nand_ooblayout_lp_ops);
 
+/*
+ * Support the old "large page" layout used for 1-bit Hamming ECC where ECC
+ * are placed at a fixed offset.
+ */
+static int nand_ooblayout_ecc_lp_hamming(struct mtd_info *mtd, int section,
+					 struct mtd_oob_region *oobregion)
+{
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_ecc_ctrl *ecc = &chip->ecc;
+
+	if (section)
+		return -ERANGE;
+
+	switch (mtd->oobsize) {
+	case 64:
+		oobregion->offset = 40;
+		break;
+	case 128:
+		oobregion->offset = 80;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	oobregion->length = ecc->total;
+	if (oobregion->offset + oobregion->length > mtd->oobsize)
+		return -ERANGE;
+
+	return 0;
+}
+
+static int nand_ooblayout_free_lp_hamming(struct mtd_info *mtd, int section,
+					  struct mtd_oob_region *oobregion)
+{
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct nand_ecc_ctrl *ecc = &chip->ecc;
+	int ecc_offset = 0;
+
+	if (section < 0 || section > 1)
+		return -ERANGE;
+
+	switch (mtd->oobsize) {
+	case 64:
+		ecc_offset = 40;
+		break;
+	case 128:
+		ecc_offset = 80;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (section == 0) {
+		oobregion->offset = 2;
+		oobregion->length = ecc_offset - 2;
+	} else {
+		oobregion->offset = ecc_offset + ecc->total;
+		oobregion->length = mtd->oobsize - oobregion->offset;
+	}
+
+	return 0;
+}
+
+const struct mtd_ooblayout_ops nand_ooblayout_lp_hamming_ops = {
+	.ecc = nand_ooblayout_ecc_lp_hamming,
+	.free = nand_ooblayout_free_lp_hamming,
+};
+
 static int check_offs_len(struct mtd_info *mtd,
 					loff_t ofs, uint64_t len)
 {
@@ -1013,7 +1087,9 @@ static int nand_setup_data_interface(str
 	 * Ensure the timing mode has been changed on the chip side
 	 * before changing timings on the controller side.
 	 */
-	if (chip->onfi_version) {
+	if (chip->onfi_version &&
+	    (le16_to_cpu(chip->onfi_params.opt_cmd) &
+	     ONFI_OPT_CMD_SET_GET_FEATURES)) {
 		u8 tmode_param[ONFI_SUBFEATURE_PARAM_LEN] = {
 			chip->onfi_timing_mode_default,
 		};
@@ -4565,7 +4641,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 			break;
 		case 64:
 		case 128:
-			mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops);
+			mtd_set_ooblayout(mtd, &nand_ooblayout_lp_hamming_ops);
 			break;
 		default:
 			WARN(1, "No oob scheme defined for oobsize %d\n",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/omap2.c linux-libre-4.9.52-gnu/drivers/mtd/nand/omap2.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/omap2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/omap2.c	2017-09-27 08:40:05.000000000 -0400
@@ -1856,6 +1856,15 @@ static int omap_nand_probe(struct platfo
 	nand_chip->ecc.priv	= NULL;
 	nand_set_flash_node(nand_chip, dev->of_node);
 
+	if (!mtd->name) {
+		mtd->name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
+					   "omap2-nand.%d", info->gpmc_cs);
+		if (!mtd->name) {
+			dev_err(&pdev->dev, "Failed to set MTD name\n");
+			return -ENOMEM;
+		}
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	nand_chip->IO_ADDR_R = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(nand_chip->IO_ADDR_R))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/orion_nand.c linux-libre-4.9.52-gnu/drivers/mtd/nand/orion_nand.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/orion_nand.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/orion_nand.c	2017-09-27 08:40:05.000000000 -0400
@@ -23,6 +23,11 @@
 #include <asm/sizes.h>
 #include <linux/platform_data/mtd-orion_nand.h>
 
+struct orion_nand_info {
+	struct nand_chip chip;
+	struct clk *clk;
+};
+
 static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
 	struct nand_chip *nc = mtd_to_nand(mtd);
@@ -75,20 +80,21 @@ static void orion_nand_read_buf(struct m
 
 static int __init orion_nand_probe(struct platform_device *pdev)
 {
+	struct orion_nand_info *info;
 	struct mtd_info *mtd;
 	struct nand_chip *nc;
 	struct orion_nand_data *board;
 	struct resource *res;
-	struct clk *clk;
 	void __iomem *io_base;
 	int ret = 0;
 	u32 val = 0;
 
-	nc = devm_kzalloc(&pdev->dev,
-			sizeof(struct nand_chip),
+	info = devm_kzalloc(&pdev->dev,
+			sizeof(struct orion_nand_info),
 			GFP_KERNEL);
-	if (!nc)
+	if (!info)
 		return -ENOMEM;
+	nc = &info->chip;
 	mtd = nand_to_mtd(nc);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -145,15 +151,13 @@ static int __init orion_nand_probe(struc
 	if (board->dev_ready)
 		nc->dev_ready = board->dev_ready;
 
-	platform_set_drvdata(pdev, mtd);
+	platform_set_drvdata(pdev, info);
 
 	/* Not all platforms can gate the clock, so it is not
 	   an error if the clock does not exists. */
-	clk = clk_get(&pdev->dev, NULL);
-	if (!IS_ERR(clk)) {
-		clk_prepare_enable(clk);
-		clk_put(clk);
-	}
+	info->clk = devm_clk_get(&pdev->dev, NULL);
+	if (!IS_ERR(info->clk))
+		clk_prepare_enable(info->clk);
 
 	if (nand_scan(mtd, 1)) {
 		ret = -ENXIO;
@@ -170,26 +174,22 @@ static int __init orion_nand_probe(struc
 	return 0;
 
 no_dev:
-	if (!IS_ERR(clk)) {
-		clk_disable_unprepare(clk);
-		clk_put(clk);
-	}
+	if (!IS_ERR(info->clk))
+		clk_disable_unprepare(info->clk);
 
 	return ret;
 }
 
 static int orion_nand_remove(struct platform_device *pdev)
 {
-	struct mtd_info *mtd = platform_get_drvdata(pdev);
-	struct clk *clk;
+	struct orion_nand_info *info = platform_get_drvdata(pdev);
+	struct nand_chip *chip = &info->chip;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 
 	nand_release(mtd);
 
-	clk = clk_get(&pdev->dev, NULL);
-	if (!IS_ERR(clk)) {
-		clk_disable_unprepare(clk);
-		clk_put(clk);
-	}
+	if (!IS_ERR(info->clk))
+		clk_disable_unprepare(info->clk);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/qcom_nandc.c linux-libre-4.9.52-gnu/drivers/mtd/nand/qcom_nandc.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/qcom_nandc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/qcom_nandc.c	2017-09-27 08:40:05.000000000 -0400
@@ -109,7 +109,11 @@
 #define	READ_ADDR			0
 
 /* NAND_DEV_CMD_VLD bits */
-#define	READ_START_VLD			0
+#define	READ_START_VLD			BIT(0)
+#define	READ_STOP_VLD			BIT(1)
+#define	WRITE_START_VLD			BIT(2)
+#define	ERASE_START_VLD			BIT(3)
+#define	SEQ_READ_START_VLD		BIT(4)
 
 /* NAND_EBI2_ECC_BUF_CFG bits */
 #define	NUM_STEPS			0
@@ -148,6 +152,10 @@
 #define	FETCH_ID			0xb
 #define	RESET_DEVICE			0xd
 
+/* Default Value for NAND_DEV_CMD_VLD */
+#define NAND_DEV_CMD_VLD_VAL		(READ_START_VLD | WRITE_START_VLD | \
+					 ERASE_START_VLD | SEQ_READ_START_VLD)
+
 /*
  * the NAND controller performs reads/writes with ECC in 516 byte chunks.
  * the driver calls the chunks 'step' or 'codeword' interchangeably
@@ -672,8 +680,7 @@ static int nandc_param(struct qcom_nand_
 
 	/* configure CMD1 and VLD for ONFI param probing */
 	nandc_set_reg(nandc, NAND_DEV_CMD_VLD,
-		      (nandc->vld & ~(1 << READ_START_VLD))
-		      | 0 << READ_START_VLD);
+		      (nandc->vld & ~READ_START_VLD));
 	nandc_set_reg(nandc, NAND_DEV_CMD1,
 		      (nandc->cmd1 & ~(0xFF << READ_ADDR))
 		      | NAND_CMD_PARAM << READ_ADDR);
@@ -1893,7 +1900,7 @@ static int qcom_nand_host_setup(struct q
 				| wide_bus << WIDE_FLASH
 				| 1 << DEV0_CFG1_ECC_DISABLE;
 
-	host->ecc_bch_cfg = host->bch_enabled << ECC_CFG_ECC_DISABLE
+	host->ecc_bch_cfg = !host->bch_enabled << ECC_CFG_ECC_DISABLE
 				| 0 << ECC_SW_RESET
 				| host->cw_data << ECC_NUM_DATA_BYTES
 				| 1 << ECC_FORCE_CLK_OPEN
@@ -1972,13 +1979,14 @@ static int qcom_nandc_setup(struct qcom_
 {
 	/* kill onenand */
 	nandc_write(nandc, SFLASHC_BURST_CFG, 0);
+	nandc_write(nandc, NAND_DEV_CMD_VLD, NAND_DEV_CMD_VLD_VAL);
 
 	/* enable ADM DMA */
 	nandc_write(nandc, NAND_FLASH_CHIP_SELECT, DM_EN);
 
 	/* save the original values of these registers */
 	nandc->cmd1 = nandc_read(nandc, NAND_DEV_CMD1);
-	nandc->vld = nandc_read(nandc, NAND_DEV_CMD_VLD);
+	nandc->vld = NAND_DEV_CMD_VLD_VAL;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/nand/xway_nand.c linux-libre-4.9.52-gnu/drivers/mtd/nand/xway_nand.c
--- linux-libre-4.9-gnu/drivers/mtd/nand/xway_nand.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/nand/xway_nand.c	2017-09-27 08:40:05.000000000 -0400
@@ -232,7 +232,6 @@ static const struct of_device_id xway_na
 	{ .compatible = "lantiq,nand-xway" },
 	{},
 };
-MODULE_DEVICE_TABLE(of, xway_nand_match);
 
 static struct platform_driver xway_nand_driver = {
 	.probe	= xway_nand_probe,
@@ -243,6 +242,4 @@ static struct platform_driver xway_nand_
 	},
 };
 
-module_platform_driver(xway_nand_driver);
-
-MODULE_LICENSE("GPL");
+builtin_platform_driver(xway_nand_driver);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/spi-nor/cadence-quadspi.c linux-libre-4.9.52-gnu/drivers/mtd/spi-nor/cadence-quadspi.c
--- linux-libre-4.9-gnu/drivers/mtd/spi-nor/cadence-quadspi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/spi-nor/cadence-quadspi.c	2017-09-27 08:40:05.000000000 -0400
@@ -1077,12 +1077,14 @@ static int cqspi_setup_flash(struct cqsp
 
 	/* Get flash device data */
 	for_each_available_child_of_node(dev->of_node, np) {
-		if (of_property_read_u32(np, "reg", &cs)) {
+		ret = of_property_read_u32(np, "reg", &cs);
+		if (ret) {
 			dev_err(dev, "Couldn't determine chip select.\n");
 			goto err;
 		}
 
-		if (cs > CQSPI_MAX_CHIPSELECT) {
+		if (cs >= CQSPI_MAX_CHIPSELECT) {
+			ret = -EINVAL;
 			dev_err(dev, "Chip select %d out of range.\n", cs);
 			goto err;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/spi-nor/spi-nor.c linux-libre-4.9.52-gnu/drivers/mtd/spi-nor/spi-nor.c
--- linux-libre-4.9-gnu/drivers/mtd/spi-nor/spi-nor.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/spi-nor/spi-nor.c	2017-09-27 08:40:05.000000000 -0400
@@ -1255,6 +1255,13 @@ static int spansion_quad_enable(struct s
 		return -EINVAL;
 	}
 
+	ret = spi_nor_wait_till_ready(nor);
+	if (ret) {
+		dev_err(nor->dev,
+			"timeout while writing configuration register\n");
+		return ret;
+	}
+
 	/* read back and check it */
 	ret = read_cr(nor);
 	if (!(ret > 0 && (ret & CR_QUAD_EN_SPAN))) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/mtd/ubi/upd.c linux-libre-4.9.52-gnu/drivers/mtd/ubi/upd.c
--- linux-libre-4.9-gnu/drivers/mtd/ubi/upd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/mtd/ubi/upd.c	2017-09-27 08:40:05.000000000 -0400
@@ -148,11 +148,11 @@ int ubi_start_update(struct ubi_device *
 			return err;
 	}
 
-	if (bytes == 0) {
-		err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
-		if (err)
-			return err;
+	err = ubi_wl_flush(ubi, UBI_ALL, UBI_ALL);
+	if (err)
+		return err;
 
+	if (bytes == 0) {
 		err = clear_update_marker(ubi, vol, 0);
 		if (err)
 			return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/bonding/bond_3ad.c linux-libre-4.9.52-gnu/drivers/net/bonding/bond_3ad.c
--- linux-libre-4.9-gnu/drivers/net/bonding/bond_3ad.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/bonding/bond_3ad.c	2017-09-27 08:40:05.000000000 -0400
@@ -2573,7 +2573,7 @@ int __bond_3ad_get_active_agg_info(struc
 		return -1;
 
 	ad_info->aggregator_id = aggregator->aggregator_identifier;
-	ad_info->ports = aggregator->num_of_ports;
+	ad_info->ports = __agg_active_ports(aggregator);
 	ad_info->actor_key = aggregator->actor_oper_aggregator_key;
 	ad_info->partner_key = aggregator->partner_oper_aggregator_key;
 	ether_addr_copy(ad_info->partner_system,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/can/c_can/c_can_pci.c linux-libre-4.9.52-gnu/drivers/net/can/c_can/c_can_pci.c
--- linux-libre-4.9-gnu/drivers/net/can/c_can/c_can_pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/can/c_can/c_can_pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -161,6 +161,7 @@ static int c_can_pci_probe(struct pci_de
 
 	dev->irq = pdev->irq;
 	priv->base = addr;
+	priv->device = &pdev->dev;
 
 	if (!c_can_pci_data->freq) {
 		dev_err(&pdev->dev, "no clock frequency defined\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/can/ifi_canfd/ifi_canfd.c linux-libre-4.9.52-gnu/drivers/net/can/ifi_canfd/ifi_canfd.c
--- linux-libre-4.9-gnu/drivers/net/can/ifi_canfd/ifi_canfd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/can/ifi_canfd/ifi_canfd.c	2017-09-27 08:40:05.000000000 -0400
@@ -557,7 +557,7 @@ static int ifi_canfd_poll(struct napi_st
 	int work_done = 0;
 
 	u32 stcmd = readl(priv->base + IFI_CANFD_STCMD);
-	u32 rxstcmd = readl(priv->base + IFI_CANFD_STCMD);
+	u32 rxstcmd = readl(priv->base + IFI_CANFD_RXSTCMD);
 	u32 errctr = readl(priv->base + IFI_CANFD_ERROR_CTR);
 
 	/* Handle bus state changes */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/can/ti_hecc.c linux-libre-4.9.52-gnu/drivers/net/can/ti_hecc.c
--- linux-libre-4.9-gnu/drivers/net/can/ti_hecc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/can/ti_hecc.c	2017-09-27 08:40:05.000000000 -0400
@@ -948,7 +948,12 @@ static int ti_hecc_probe(struct platform
 	netif_napi_add(ndev, &priv->napi, ti_hecc_rx_poll,
 		HECC_DEF_NAPI_WEIGHT);
 
-	clk_enable(priv->clk);
+	err = clk_prepare_enable(priv->clk);
+	if (err) {
+		dev_err(&pdev->dev, "clk_prepare_enable() failed\n");
+		goto probe_exit_clk;
+	}
+
 	err = register_candev(ndev);
 	if (err) {
 		dev_err(&pdev->dev, "register_candev() failed\n");
@@ -981,7 +986,7 @@ static int ti_hecc_remove(struct platfor
 	struct ti_hecc_priv *priv = netdev_priv(ndev);
 
 	unregister_candev(ndev);
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 	clk_put(priv->clk);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	iounmap(priv->base);
@@ -1006,7 +1011,7 @@ static int ti_hecc_suspend(struct platfo
 	hecc_set_bit(priv, HECC_CANMC, HECC_CANMC_PDR);
 	priv->can.state = CAN_STATE_SLEEPING;
 
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 
 	return 0;
 }
@@ -1015,8 +1020,11 @@ static int ti_hecc_resume(struct platfor
 {
 	struct net_device *dev = platform_get_drvdata(pdev);
 	struct ti_hecc_priv *priv = netdev_priv(dev);
+	int err;
 
-	clk_enable(priv->clk);
+	err = clk_prepare_enable(priv->clk);
+	if (err)
+		return err;
 
 	hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_PDR);
 	priv->can.state = CAN_STATE_ERROR_ACTIVE;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/can/usb/gs_usb.c linux-libre-4.9.52-gnu/drivers/net/can/usb/gs_usb.c
--- linux-libre-4.9-gnu/drivers/net/can/usb/gs_usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/can/usb/gs_usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -265,6 +265,8 @@ static int gs_cmd_reset(struct gs_usb *g
 			     sizeof(*dm),
 			     1000);
 
+	kfree(dm);
+
 	return rc;
 }
 
@@ -740,13 +742,18 @@ static const struct net_device_ops gs_us
 static int gs_usb_set_identify(struct net_device *netdev, bool do_identify)
 {
 	struct gs_can *dev = netdev_priv(netdev);
-	struct gs_identify_mode imode;
+	struct gs_identify_mode *imode;
 	int rc;
 
+	imode = kmalloc(sizeof(*imode), GFP_KERNEL);
+
+	if (!imode)
+		return -ENOMEM;
+
 	if (do_identify)
-		imode.mode = GS_CAN_IDENTIFY_ON;
+		imode->mode = GS_CAN_IDENTIFY_ON;
 	else
-		imode.mode = GS_CAN_IDENTIFY_OFF;
+		imode->mode = GS_CAN_IDENTIFY_OFF;
 
 	rc = usb_control_msg(interface_to_usbdev(dev->iface),
 			     usb_sndctrlpipe(interface_to_usbdev(dev->iface),
@@ -756,10 +763,12 @@ static int gs_usb_set_identify(struct ne
 			     USB_RECIP_INTERFACE,
 			     dev->channel,
 			     0,
-			     &imode,
-			     sizeof(imode),
+			     imode,
+			     sizeof(*imode),
 			     100);
 
+	kfree(imode);
+
 	return (rc > 0) ? 0 : rc;
 }
 
@@ -908,10 +917,14 @@ static int gs_usb_probe(struct usb_inter
 	struct gs_usb *dev;
 	int rc = -ENOMEM;
 	unsigned int icount, i;
-	struct gs_host_config hconf = {
-		.byte_order = 0x0000beef,
-	};
-	struct gs_device_config dconf;
+	struct gs_host_config *hconf;
+	struct gs_device_config *dconf;
+
+	hconf = kmalloc(sizeof(*hconf), GFP_KERNEL);
+	if (!hconf)
+		return -ENOMEM;
+
+	hconf->byte_order = 0x0000beef;
 
 	/* send host config */
 	rc = usb_control_msg(interface_to_usbdev(intf),
@@ -920,16 +933,22 @@ static int gs_usb_probe(struct usb_inter
 			     USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
 			     1,
 			     intf->altsetting[0].desc.bInterfaceNumber,
-			     &hconf,
-			     sizeof(hconf),
+			     hconf,
+			     sizeof(*hconf),
 			     1000);
 
+	kfree(hconf);
+
 	if (rc < 0) {
 		dev_err(&intf->dev, "Couldn't send data format (err=%d)\n",
 			rc);
 		return rc;
 	}
 
+	dconf = kmalloc(sizeof(*dconf), GFP_KERNEL);
+	if (!dconf)
+		return -ENOMEM;
+
 	/* read device config */
 	rc = usb_control_msg(interface_to_usbdev(intf),
 			     usb_rcvctrlpipe(interface_to_usbdev(intf), 0),
@@ -937,28 +956,33 @@ static int gs_usb_probe(struct usb_inter
 			     USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
 			     1,
 			     intf->altsetting[0].desc.bInterfaceNumber,
-			     &dconf,
-			     sizeof(dconf),
+			     dconf,
+			     sizeof(*dconf),
 			     1000);
 	if (rc < 0) {
 		dev_err(&intf->dev, "Couldn't get device config: (err=%d)\n",
 			rc);
+		kfree(dconf);
 		return rc;
 	}
 
-	icount = dconf.icount + 1;
+	icount = dconf->icount + 1;
 	dev_info(&intf->dev, "Configuring for %d interfaces\n", icount);
 
 	if (icount > GS_MAX_INTF) {
 		dev_err(&intf->dev,
 			"Driver cannot handle more that %d CAN interfaces\n",
 			GS_MAX_INTF);
+		kfree(dconf);
 		return -EINVAL;
 	}
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
+	if (!dev) {
+		kfree(dconf);
 		return -ENOMEM;
+	}
+
 	init_usb_anchor(&dev->rx_submitted);
 
 	atomic_set(&dev->active_channels, 0);
@@ -967,7 +991,7 @@ static int gs_usb_probe(struct usb_inter
 	dev->udev = interface_to_usbdev(intf);
 
 	for (i = 0; i < icount; i++) {
-		dev->canch[i] = gs_make_candev(i, intf, &dconf);
+		dev->canch[i] = gs_make_candev(i, intf, dconf);
 		if (IS_ERR_OR_NULL(dev->canch[i])) {
 			/* save error code to return later */
 			rc = PTR_ERR(dev->canch[i]);
@@ -978,12 +1002,15 @@ static int gs_usb_probe(struct usb_inter
 				gs_destroy_candev(dev->canch[i]);
 
 			usb_kill_anchored_urbs(&dev->rx_submitted);
+			kfree(dconf);
 			kfree(dev);
 			return rc;
 		}
 		dev->canch[i]->parent = dev;
 	}
 
+	kfree(dconf);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/can/usb/usb_8dev.c linux-libre-4.9.52-gnu/drivers/net/can/usb/usb_8dev.c
--- linux-libre-4.9-gnu/drivers/net/can/usb/usb_8dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/can/usb/usb_8dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -951,8 +951,8 @@ static int usb_8dev_probe(struct usb_int
 	for (i = 0; i < MAX_TX_URBS; i++)
 		priv->tx_contexts[i].echo_index = MAX_TX_URBS;
 
-	priv->cmd_msg_buffer = kzalloc(sizeof(struct usb_8dev_cmd_msg),
-				      GFP_KERNEL);
+	priv->cmd_msg_buffer = devm_kzalloc(&intf->dev, sizeof(struct usb_8dev_cmd_msg),
+					    GFP_KERNEL);
 	if (!priv->cmd_msg_buffer)
 		goto cleanup_candev;
 
@@ -966,7 +966,7 @@ static int usb_8dev_probe(struct usb_int
 	if (err) {
 		netdev_err(netdev,
 			"couldn't register CAN device: %d\n", err);
-		goto cleanup_cmd_msg_buffer;
+		goto cleanup_candev;
 	}
 
 	err = usb_8dev_cmd_version(priv, &version);
@@ -987,9 +987,6 @@ static int usb_8dev_probe(struct usb_int
 cleanup_unregister_candev:
 	unregister_netdev(priv->netdev);
 
-cleanup_cmd_msg_buffer:
-	kfree(priv->cmd_msg_buffer);
-
 cleanup_candev:
 	free_candev(netdev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/dsa/b53/b53_common.c linux-libre-4.9.52-gnu/drivers/net/dsa/b53/b53_common.c
--- linux-libre-4.9-gnu/drivers/net/dsa/b53/b53_common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/dsa/b53/b53_common.c	2017-09-27 08:40:05.000000000 -0400
@@ -1558,6 +1558,7 @@ static const struct b53_chip_data b53_sw
 		.dev_name = "BCM53125",
 		.vlans = 4096,
 		.enabled_ports = 0xff,
+		.arl_entries = 4,
 		.cpu_port = B53_CPU_PORT,
 		.vta_regs = B53_VTA_REGS,
 		.duplex_reg = B53_DUPLEX_STAT_GE,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/dsa/bcm_sf2.c linux-libre-4.9.52-gnu/drivers/net/dsa/bcm_sf2.c
--- linux-libre-4.9-gnu/drivers/net/dsa/bcm_sf2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/dsa/bcm_sf2.c	2017-09-27 08:40:05.000000000 -0400
@@ -393,7 +393,7 @@ static int bcm_sf2_sw_mdio_read(struct m
 	if (addr == BRCM_PSEUDO_PHY_ADDR && priv->indir_phy_mask & BIT(addr))
 		return bcm_sf2_sw_indir_rw(priv, 1, addr, regnum, 0);
 	else
-		return mdiobus_read(priv->master_mii_bus, addr, regnum);
+		return mdiobus_read_nested(priv->master_mii_bus, addr, regnum);
 }
 
 static int bcm_sf2_sw_mdio_write(struct mii_bus *bus, int addr, int regnum,
@@ -407,7 +407,7 @@ static int bcm_sf2_sw_mdio_write(struct
 	if (addr == BRCM_PSEUDO_PHY_ADDR && priv->indir_phy_mask & BIT(addr))
 		bcm_sf2_sw_indir_rw(priv, 0, addr, regnum, val);
 	else
-		mdiobus_write(priv->master_mii_bus, addr, regnum, val);
+		mdiobus_write_nested(priv->master_mii_bus, addr, regnum, val);
 
 	return 0;
 }
@@ -982,6 +982,7 @@ static int bcm_sf2_sw_probe(struct platf
 	const char *reg_names[BCM_SF2_REGS_NUM] = BCM_SF2_REGS_NAME;
 	struct device_node *dn = pdev->dev.of_node;
 	struct b53_platform_data *pdata;
+	struct dsa_switch_ops *ops;
 	struct bcm_sf2_priv *priv;
 	struct b53_device *dev;
 	struct dsa_switch *ds;
@@ -995,6 +996,10 @@ static int bcm_sf2_sw_probe(struct platf
 	if (!priv)
 		return -ENOMEM;
 
+	ops = devm_kzalloc(&pdev->dev, sizeof(*ops), GFP_KERNEL);
+	if (!ops)
+		return -ENOMEM;
+
 	dev = b53_switch_alloc(&pdev->dev, &bcm_sf2_io_ops, priv);
 	if (!dev)
 		return -ENOMEM;
@@ -1014,6 +1019,8 @@ static int bcm_sf2_sw_probe(struct platf
 	ds = dev->ds;
 
 	/* Override the parts that are non-standard wrt. normal b53 devices */
+	memcpy(ops, ds->ops, sizeof(*ops));
+	ds->ops = ops;
 	ds->ops->get_tag_protocol = bcm_sf2_sw_get_tag_protocol;
 	ds->ops->setup = bcm_sf2_sw_setup;
 	ds->ops->get_phy_flags = bcm_sf2_sw_get_phy_flags;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/adaptec/starfire.c linux-libre-4.9.52-gnu/drivers/net/ethernet/adaptec/starfire.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/adaptec/starfire.c	2016-12-11 17:48:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/adaptec/starfire.c	2017-09-27 14:53:08.000000000 -0400
@@ -1152,6 +1152,12 @@ static void init_ring(struct net_device
 		if (skb == NULL)
 			break;
 		np->rx_info[i].mapping = pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(np->pci_dev,
+					  np->rx_info[i].mapping)) {
+			dev_kfree_skb(skb);
+			np->rx_info[i].skb = NULL;
+			break;
+		}
 		/* Grrr, we cannot offset to correctly align the IP header. */
 		np->rx_ring[i].rxaddr = cpu_to_dma(np->rx_info[i].mapping | RxDescValid);
 	}
@@ -1182,8 +1188,9 @@ static netdev_tx_t start_tx(struct sk_bu
 {
 	struct netdev_private *np = netdev_priv(dev);
 	unsigned int entry;
+	unsigned int prev_tx;
 	u32 status;
-	int i;
+	int i, j;
 
 	/*
 	 * be cautious here, wrapping the queue has weird semantics
@@ -1201,6 +1208,7 @@ static netdev_tx_t start_tx(struct sk_bu
 	}
 #endif /* ZEROCOPY && HAS_BROKEN_FIRMWARE */
 
+	prev_tx = np->cur_tx;
 	entry = np->cur_tx % TX_RING_SIZE;
 	for (i = 0; i < skb_num_frags(skb); i++) {
 		int wrap_ring = 0;
@@ -1234,6 +1242,11 @@ static netdev_tx_t start_tx(struct sk_bu
 					       skb_frag_size(this_frag),
 					       PCI_DMA_TODEVICE);
 		}
+		if (pci_dma_mapping_error(np->pci_dev,
+					  np->tx_info[entry].mapping)) {
+			dev->stats.tx_dropped++;
+			goto err_out;
+		}
 
 		np->tx_ring[entry].addr = cpu_to_dma(np->tx_info[entry].mapping);
 		np->tx_ring[entry].status = cpu_to_le32(status);
@@ -1268,8 +1281,30 @@ static netdev_tx_t start_tx(struct sk_bu
 		netif_stop_queue(dev);
 
 	return NETDEV_TX_OK;
-}
 
+err_out:
+	entry = prev_tx % TX_RING_SIZE;
+	np->tx_info[entry].skb = NULL;
+	if (i > 0) {
+		pci_unmap_single(np->pci_dev,
+				 np->tx_info[entry].mapping,
+				 skb_first_frag_len(skb),
+				 PCI_DMA_TODEVICE);
+		np->tx_info[entry].mapping = 0;
+		entry = (entry + np->tx_info[entry].used_slots) % TX_RING_SIZE;
+		for (j = 1; j < i; j++) {
+			pci_unmap_single(np->pci_dev,
+					 np->tx_info[entry].mapping,
+					 skb_frag_size(
+						&skb_shinfo(skb)->frags[j-1]),
+					 PCI_DMA_TODEVICE);
+			entry++;
+		}
+	}
+	dev_kfree_skb_any(skb);
+	np->cur_tx = prev_tx;
+	return NETDEV_TX_OK;
+}
 
 /* The interrupt handler does all of the Rx thread work and cleans up
    after the Tx thread. */
@@ -1569,6 +1604,12 @@ static void refill_rx_ring(struct net_de
 				break;	/* Better luck next round. */
 			np->rx_info[entry].mapping =
 				pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
+			if (pci_dma_mapping_error(np->pci_dev,
+						np->rx_info[entry].mapping)) {
+				dev_kfree_skb(skb);
+				np->rx_info[entry].skb = NULL;
+				break;
+			}
 			np->rx_ring[entry].rxaddr =
 				cpu_to_dma(np->rx_info[entry].mapping | RxDescValid);
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h linux-libre-4.9.52-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h
--- linux-libre-4.9-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/amd/xgbe/xgbe-common.h	2017-09-27 08:40:05.000000000 -0400
@@ -917,8 +917,8 @@
 #define RX_PACKET_ATTRIBUTES_CSUM_DONE_WIDTH	1
 #define RX_PACKET_ATTRIBUTES_VLAN_CTAG_INDEX	1
 #define RX_PACKET_ATTRIBUTES_VLAN_CTAG_WIDTH	1
-#define RX_PACKET_ATTRIBUTES_INCOMPLETE_INDEX	2
-#define RX_PACKET_ATTRIBUTES_INCOMPLETE_WIDTH	1
+#define RX_PACKET_ATTRIBUTES_LAST_INDEX		2
+#define RX_PACKET_ATTRIBUTES_LAST_WIDTH		1
 #define RX_PACKET_ATTRIBUTES_CONTEXT_NEXT_INDEX	3
 #define RX_PACKET_ATTRIBUTES_CONTEXT_NEXT_WIDTH	1
 #define RX_PACKET_ATTRIBUTES_CONTEXT_INDEX	4
@@ -927,6 +927,8 @@
 #define RX_PACKET_ATTRIBUTES_RX_TSTAMP_WIDTH	1
 #define RX_PACKET_ATTRIBUTES_RSS_HASH_INDEX	6
 #define RX_PACKET_ATTRIBUTES_RSS_HASH_WIDTH	1
+#define RX_PACKET_ATTRIBUTES_FIRST_INDEX	7
+#define RX_PACKET_ATTRIBUTES_FIRST_WIDTH	1
 
 #define RX_NORMAL_DESC0_OVT_INDEX		0
 #define RX_NORMAL_DESC0_OVT_WIDTH		16
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c linux-libre-4.9.52-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/amd/xgbe/xgbe-dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -1721,10 +1721,15 @@ static int xgbe_dev_read(struct xgbe_cha
 
 	/* Get the header length */
 	if (XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, FD)) {
+		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+			       FIRST, 1);
 		rdata->rx.hdr_len = XGMAC_GET_BITS_LE(rdesc->desc2,
 						      RX_NORMAL_DESC2, HL);
 		if (rdata->rx.hdr_len)
 			pdata->ext_stats.rx_split_header_packets++;
+	} else {
+		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+			       FIRST, 0);
 	}
 
 	/* Get the RSS hash */
@@ -1747,19 +1752,16 @@ static int xgbe_dev_read(struct xgbe_cha
 		}
 	}
 
-	/* Get the packet length */
-	rdata->rx.len = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, PL);
-
-	if (!XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, LD)) {
-		/* Not all the data has been transferred for this packet */
-		XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
-			       INCOMPLETE, 1);
+	/* Not all the data has been transferred for this packet */
+	if (!XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, LD))
 		return 0;
-	}
 
 	/* This is the last of the data for this packet */
 	XGMAC_SET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
-		       INCOMPLETE, 0);
+		       LAST, 1);
+
+	/* Get the packet length */
+	rdata->rx.len = XGMAC_GET_BITS_LE(rdesc->desc3, RX_NORMAL_DESC3, PL);
 
 	/* Set checksum done indicator as appropriate */
 	if (netdev->features & NETIF_F_RXCSUM)
@@ -2823,8 +2825,10 @@ static int xgbe_init(struct xgbe_prv_dat
 
 	/* Flush Tx queues */
 	ret = xgbe_flush_tx_queues(pdata);
-	if (ret)
+	if (ret) {
+		netdev_err(pdata->netdev, "error flushing TX queues\n");
 		return ret;
+	}
 
 	/*
 	 * Initialize DMA related features
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c linux-libre-4.9.52-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/amd/xgbe/xgbe-drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -877,7 +877,9 @@ static int xgbe_start(struct xgbe_prv_da
 
 	DBGPR("-->xgbe_start\n");
 
-	hw_if->init(pdata);
+	ret = hw_if->init(pdata);
+	if (ret)
+		return ret;
 
 	ret = phy_if->phy_start(pdata);
 	if (ret)
@@ -1752,13 +1754,12 @@ static struct sk_buff *xgbe_create_skb(s
 {
 	struct sk_buff *skb;
 	u8 *packet;
-	unsigned int copy_len;
 
 	skb = napi_alloc_skb(napi, rdata->rx.hdr.dma_len);
 	if (!skb)
 		return NULL;
 
-	/* Start with the header buffer which may contain just the header
+	/* Pull in the header buffer which may contain just the header
 	 * or the header plus data
 	 */
 	dma_sync_single_range_for_cpu(pdata->dev, rdata->rx.hdr.dma_base,
@@ -1767,28 +1768,47 @@ static struct sk_buff *xgbe_create_skb(s
 
 	packet = page_address(rdata->rx.hdr.pa.pages) +
 		 rdata->rx.hdr.pa.pages_offset;
-	copy_len = (rdata->rx.hdr_len) ? rdata->rx.hdr_len : len;
-	copy_len = min(rdata->rx.hdr.dma_len, copy_len);
-	skb_copy_to_linear_data(skb, packet, copy_len);
-	skb_put(skb, copy_len);
+	skb_copy_to_linear_data(skb, packet, len);
+	skb_put(skb, len);
 
-	len -= copy_len;
-	if (len) {
-		/* Add the remaining data as a frag */
-		dma_sync_single_range_for_cpu(pdata->dev,
-					      rdata->rx.buf.dma_base,
-					      rdata->rx.buf.dma_off,
-					      rdata->rx.buf.dma_len,
-					      DMA_FROM_DEVICE);
+	return skb;
+}
 
-		skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
-				rdata->rx.buf.pa.pages,
-				rdata->rx.buf.pa.pages_offset,
-				len, rdata->rx.buf.dma_len);
-		rdata->rx.buf.pa.pages = NULL;
-	}
+static unsigned int xgbe_rx_buf1_len(struct xgbe_ring_data *rdata,
+				     struct xgbe_packet_data *packet)
+{
+	/* Always zero if not the first descriptor */
+	if (!XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, FIRST))
+		return 0;
 
-	return skb;
+	/* First descriptor with split header, return header length */
+	if (rdata->rx.hdr_len)
+		return rdata->rx.hdr_len;
+
+	/* First descriptor but not the last descriptor and no split header,
+	 * so the full buffer was used
+	 */
+	if (!XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, LAST))
+		return rdata->rx.hdr.dma_len;
+
+	/* First descriptor and last descriptor and no split header, so
+	 * calculate how much of the buffer was used
+	 */
+	return min_t(unsigned int, rdata->rx.hdr.dma_len, rdata->rx.len);
+}
+
+static unsigned int xgbe_rx_buf2_len(struct xgbe_ring_data *rdata,
+				     struct xgbe_packet_data *packet,
+				     unsigned int len)
+{
+	/* Always the full buffer if not the last descriptor */
+	if (!XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES, LAST))
+		return rdata->rx.buf.dma_len;
+
+	/* Last descriptor so calculate how much of the buffer was used
+	 * for the last bit of data
+	 */
+	return rdata->rx.len - len;
 }
 
 static int xgbe_tx_poll(struct xgbe_channel *channel)
@@ -1873,8 +1893,8 @@ static int xgbe_rx_poll(struct xgbe_chan
 	struct napi_struct *napi;
 	struct sk_buff *skb;
 	struct skb_shared_hwtstamps *hwtstamps;
-	unsigned int incomplete, error, context_next, context;
-	unsigned int len, rdesc_len, max_len;
+	unsigned int last, error, context_next, context;
+	unsigned int len, buf1_len, buf2_len, max_len;
 	unsigned int received = 0;
 	int packet_count = 0;
 
@@ -1884,7 +1904,7 @@ static int xgbe_rx_poll(struct xgbe_chan
 	if (!ring)
 		return 0;
 
-	incomplete = 0;
+	last = 0;
 	context_next = 0;
 
 	napi = (pdata->per_channel_irq) ? &channel->napi : &pdata->napi;
@@ -1918,9 +1938,8 @@ read_again:
 		received++;
 		ring->cur++;
 
-		incomplete = XGMAC_GET_BITS(packet->attributes,
-					    RX_PACKET_ATTRIBUTES,
-					    INCOMPLETE);
+		last = XGMAC_GET_BITS(packet->attributes, RX_PACKET_ATTRIBUTES,
+				      LAST);
 		context_next = XGMAC_GET_BITS(packet->attributes,
 					      RX_PACKET_ATTRIBUTES,
 					      CONTEXT_NEXT);
@@ -1929,7 +1948,7 @@ read_again:
 					 CONTEXT);
 
 		/* Earlier error, just drain the remaining data */
-		if ((incomplete || context_next) && error)
+		if ((!last || context_next) && error)
 			goto read_again;
 
 		if (error || packet->errors) {
@@ -1941,16 +1960,22 @@ read_again:
 		}
 
 		if (!context) {
-			/* Length is cumulative, get this descriptor's length */
-			rdesc_len = rdata->rx.len - len;
-			len += rdesc_len;
+			/* Get the data length in the descriptor buffers */
+			buf1_len = xgbe_rx_buf1_len(rdata, packet);
+			len += buf1_len;
+			buf2_len = xgbe_rx_buf2_len(rdata, packet, len);
+			len += buf2_len;
 
-			if (rdesc_len && !skb) {
+			if (!skb) {
 				skb = xgbe_create_skb(pdata, napi, rdata,
-						      rdesc_len);
-				if (!skb)
+						      buf1_len);
+				if (!skb) {
 					error = 1;
-			} else if (rdesc_len) {
+					goto skip_data;
+				}
+			}
+
+			if (buf2_len) {
 				dma_sync_single_range_for_cpu(pdata->dev,
 							rdata->rx.buf.dma_base,
 							rdata->rx.buf.dma_off,
@@ -1960,13 +1985,14 @@ read_again:
 				skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
 						rdata->rx.buf.pa.pages,
 						rdata->rx.buf.pa.pages_offset,
-						rdesc_len,
+						buf2_len,
 						rdata->rx.buf.dma_len);
 				rdata->rx.buf.pa.pages = NULL;
 			}
 		}
 
-		if (incomplete || context_next)
+skip_data:
+		if (!last || context_next)
 			goto read_again;
 
 		if (!skb)
@@ -2024,7 +2050,7 @@ next_packet:
 	}
 
 	/* Check if we need to save state before leaving */
-	if (received && (incomplete || context_next)) {
+	if (received && (!last || context_next)) {
 		rdata = XGBE_GET_DESC_DATA(ring, ring->cur);
 		rdata->state_saved = 1;
 		rdata->state.skb = skb;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/aurora/nb8800.c linux-libre-4.9.52-gnu/drivers/net/ethernet/aurora/nb8800.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/aurora/nb8800.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/aurora/nb8800.c	2017-09-27 08:40:05.000000000 -0400
@@ -609,7 +609,7 @@ static void nb8800_mac_config(struct net
 		mac_mode |= HALF_DUPLEX;
 
 	if (gigabit) {
-		if (priv->phy_mode == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_is_rgmii(dev->phydev))
 			mac_mode |= RGMII_MODE;
 
 		mac_mode |= GMAC_MODE;
@@ -1277,11 +1277,10 @@ static int nb8800_tangox_init(struct net
 		break;
 
 	case PHY_INTERFACE_MODE_RGMII:
-		pad_mode = PAD_MODE_RGMII;
-		break;
-
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
 	case PHY_INTERFACE_MODE_RGMII_TXID:
-		pad_mode = PAD_MODE_RGMII | PAD_MODE_GTX_CLK_DELAY;
+		pad_mode = PAD_MODE_RGMII;
 		break;
 
 	default:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bcm63xx_enet.c linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bcm63xx_enet.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bcm63xx_enet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bcm63xx_enet.c	2017-09-27 08:40:05.000000000 -0400
@@ -913,6 +913,8 @@ static int bcm_enet_open(struct net_devi
 		priv->old_link = 0;
 		priv->old_duplex = -1;
 		priv->old_pause = -1;
+	} else {
+		phydev = NULL;
 	}
 
 	/* mask all interrupts and request them */
@@ -1083,7 +1085,7 @@ static int bcm_enet_open(struct net_devi
 	enet_dmac_writel(priv, priv->dma_chan_int_mask,
 			 ENETDMAC_IRMASK, priv->tx_chan);
 
-	if (priv->has_phy)
+	if (phydev)
 		phy_start(phydev);
 	else
 		bcm_enet_adjust_link(dev);
@@ -1126,7 +1128,7 @@ out_freeirq:
 	free_irq(dev->irq, dev);
 
 out_phy_disconnect:
-	if (priv->has_phy)
+	if (phydev)
 		phy_disconnect(phydev);
 
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bcmsysport.c linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bcmsysport.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bcmsysport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bcmsysport.c	2017-09-27 08:40:05.000000000 -0400
@@ -710,11 +710,8 @@ static unsigned int __bcm_sysport_tx_rec
 	unsigned int c_index, last_c_index, last_tx_cn, num_tx_cbs;
 	unsigned int pkts_compl = 0, bytes_compl = 0;
 	struct bcm_sysport_cb *cb;
-	struct netdev_queue *txq;
 	u32 hw_ind;
 
-	txq = netdev_get_tx_queue(ndev, ring->index);
-
 	/* Compute how many descriptors have been processed since last call */
 	hw_ind = tdma_readl(priv, TDMA_DESC_RING_PROD_CONS_INDEX(ring->index));
 	c_index = (hw_ind >> RING_CONS_INDEX_SHIFT) & RING_CONS_INDEX_MASK;
@@ -745,9 +742,6 @@ static unsigned int __bcm_sysport_tx_rec
 
 	ring->c_index = c_index;
 
-	if (netif_tx_queue_stopped(txq) && pkts_compl)
-		netif_tx_wake_queue(txq);
-
 	netif_dbg(priv, tx_done, ndev,
 		  "ring=%d c_index=%d pkts_compl=%d, bytes_compl=%d\n",
 		  ring->index, ring->c_index, pkts_compl, bytes_compl);
@@ -759,16 +753,33 @@ static unsigned int __bcm_sysport_tx_rec
 static unsigned int bcm_sysport_tx_reclaim(struct bcm_sysport_priv *priv,
 					   struct bcm_sysport_tx_ring *ring)
 {
+	struct netdev_queue *txq;
 	unsigned int released;
 	unsigned long flags;
 
+	txq = netdev_get_tx_queue(priv->netdev, ring->index);
+
 	spin_lock_irqsave(&ring->lock, flags);
 	released = __bcm_sysport_tx_reclaim(priv, ring);
+	if (released)
+		netif_tx_wake_queue(txq);
+
 	spin_unlock_irqrestore(&ring->lock, flags);
 
 	return released;
 }
 
+/* Locked version of the per-ring TX reclaim, but does not wake the queue */
+static void bcm_sysport_tx_clean(struct bcm_sysport_priv *priv,
+				 struct bcm_sysport_tx_ring *ring)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ring->lock, flags);
+	__bcm_sysport_tx_reclaim(priv, ring);
+	spin_unlock_irqrestore(&ring->lock, flags);
+}
+
 static int bcm_sysport_tx_poll(struct napi_struct *napi, int budget)
 {
 	struct bcm_sysport_tx_ring *ring =
@@ -1253,7 +1264,7 @@ static void bcm_sysport_fini_tx_ring(str
 	napi_disable(&ring->napi);
 	netif_napi_del(&ring->napi);
 
-	bcm_sysport_tx_reclaim(priv, ring);
+	bcm_sysport_tx_clean(priv, ring);
 
 	kfree(ring->cbs);
 	ring->cbs = NULL;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c	2016-12-11 17:49:18.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c	2017-09-27 14:53:54.000000000 -0400
@@ -1931,7 +1931,7 @@ u16 bnx2x_select_queue(struct net_device
 	}
 
 	/* select a non-FCoE queue */
-	return fallback(dev, skb) % BNX2X_NUM_ETH_QUEUES(bp);
+	return fallback(dev, skb) % (BNX2X_NUM_ETH_QUEUES(bp) * bp->max_cos);
 }
 
 void bnx2x_set_num_queues(struct bnx2x *bp)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2017-09-27 08:40:05.000000000 -0400
@@ -1097,7 +1097,7 @@ static struct sk_buff *bnxt_gro_func_573
 {
 #ifdef CONFIG_INET
 	struct tcphdr *th;
-	int len, nw_off, tcp_opt_len;
+	int len, nw_off, tcp_opt_len = 0;
 
 	if (tcp_ts)
 		tcp_opt_len = 12;
@@ -1499,6 +1499,7 @@ static int bnxt_async_event_process(stru
 			netdev_warn(bp->dev, "Link speed %d no longer supported\n",
 				    speed);
 		}
+		set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event);
 		/* fall thru */
 	}
 	case HWRM_ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
@@ -2867,7 +2868,8 @@ static int bnxt_alloc_ntp_fltrs(struct b
 		INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]);
 
 	bp->ntp_fltr_count = 0;
-	bp->ntp_fltr_bmap = kzalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
+	bp->ntp_fltr_bmap = kcalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
+				    sizeof(long),
 				    GFP_KERNEL);
 
 	if (!bp->ntp_fltr_bmap)
@@ -5109,6 +5111,7 @@ static int bnxt_update_link(struct bnxt
 	struct hwrm_port_phy_qcfg_input req = {0};
 	struct hwrm_port_phy_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
 	u8 link_up = link_info->link_up;
+	u16 diff;
 
 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCFG, -1, -1);
 
@@ -5196,6 +5199,18 @@ static int bnxt_update_link(struct bnxt
 		link_info->link_up = 0;
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
+
+	diff = link_info->support_auto_speeds ^ link_info->advertising;
+	if ((link_info->support_auto_speeds | diff) !=
+	    link_info->support_auto_speeds) {
+		/* An advertised speed is no longer supported, so we need to
+		 * update the advertisement settings.  Caller holds RTNL
+		 * so we can modify link settings.
+		 */
+		link_info->advertising = link_info->support_auto_speeds;
+		if (link_info->autoneg & BNXT_AUTONEG_SPEED)
+			bnxt_hwrm_set_link_setting(bp, true, false);
+	}
 	return 0;
 }
 
@@ -6079,29 +6094,37 @@ bnxt_restart_timer:
 	mod_timer(&bp->timer, jiffies + bp->current_interval);
 }
 
-/* Only called from bnxt_sp_task() */
-static void bnxt_reset(struct bnxt *bp, bool silent)
+static void bnxt_rtnl_lock_sp(struct bnxt *bp)
 {
-	/* bnxt_reset_task() calls bnxt_close_nic() which waits
-	 * for BNXT_STATE_IN_SP_TASK to clear.
-	 * If there is a parallel dev_close(), bnxt_close() may be holding
+	/* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK
+	 * set.  If the device is being closed, bnxt_close() may be holding
 	 * rtnl() and waiting for BNXT_STATE_IN_SP_TASK to clear.  So we
 	 * must clear BNXT_STATE_IN_SP_TASK before holding rtnl().
 	 */
 	clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
 	rtnl_lock();
-	if (test_bit(BNXT_STATE_OPEN, &bp->state))
-		bnxt_reset_task(bp, silent);
+}
+
+static void bnxt_rtnl_unlock_sp(struct bnxt *bp)
+{
 	set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
 	rtnl_unlock();
 }
 
+/* Only called from bnxt_sp_task() */
+static void bnxt_reset(struct bnxt *bp, bool silent)
+{
+	bnxt_rtnl_lock_sp(bp);
+	if (test_bit(BNXT_STATE_OPEN, &bp->state))
+		bnxt_reset_task(bp, silent);
+	bnxt_rtnl_unlock_sp(bp);
+}
+
 static void bnxt_cfg_ntp_filters(struct bnxt *);
 
 static void bnxt_sp_task(struct work_struct *work)
 {
 	struct bnxt *bp = container_of(work, struct bnxt, sp_task);
-	int rc;
 
 	set_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
 	smp_mb__after_atomic();
@@ -6115,12 +6138,6 @@ static void bnxt_sp_task(struct work_str
 
 	if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event))
 		bnxt_cfg_ntp_filters(bp);
-	if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
-		rc = bnxt_update_link(bp, true);
-		if (rc)
-			netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
-				   rc);
-	}
 	if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event))
 		bnxt_hwrm_exec_fwd_req(bp);
 	if (test_and_clear_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event)) {
@@ -6141,18 +6158,39 @@ static void bnxt_sp_task(struct work_str
 		bnxt_hwrm_tunnel_dst_port_free(
 			bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE);
 	}
+	if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event))
+		bnxt_hwrm_port_qstats(bp);
+
+	/* These functions below will clear BNXT_STATE_IN_SP_TASK.  They
+	 * must be the last functions to be called before exiting.
+	 */
+	if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
+		int rc = 0;
+
+		if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT,
+				       &bp->sp_event))
+			bnxt_hwrm_phy_qcaps(bp);
+
+		bnxt_rtnl_lock_sp(bp);
+		if (test_bit(BNXT_STATE_OPEN, &bp->state))
+			rc = bnxt_update_link(bp, true);
+		bnxt_rtnl_unlock_sp(bp);
+		if (rc)
+			netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
+				   rc);
+	}
+	if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) {
+		bnxt_rtnl_lock_sp(bp);
+		if (test_bit(BNXT_STATE_OPEN, &bp->state))
+			bnxt_get_port_module_status(bp);
+		bnxt_rtnl_unlock_sp(bp);
+	}
 	if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event))
 		bnxt_reset(bp, false);
 
 	if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event))
 		bnxt_reset(bp, true);
 
-	if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event))
-		bnxt_get_port_module_status(bp);
-
-	if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event))
-		bnxt_hwrm_port_qstats(bp);
-
 	smp_mb__before_atomic();
 	clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/bnxt/bnxt.h	2017-09-27 08:40:05.000000000 -0400
@@ -1089,6 +1089,7 @@ struct bnxt {
 #define BNXT_RESET_TASK_SILENT_SP_EVENT	11
 #define BNXT_GENEVE_ADD_PORT_SP_EVENT	12
 #define BNXT_GENEVE_DEL_PORT_SP_EVENT	13
+#define BNXT_LINK_SPEED_CHNG_SP_EVENT	14
 
 	struct bnxt_pf_info	pf;
 #ifdef CONFIG_BNXT_SRIOV
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/genet/bcmgenet.c	2017-09-27 08:40:05.000000000 -0400
@@ -3402,7 +3402,8 @@ static int bcmgenet_suspend(struct devic
 
 	bcmgenet_netif_stop(dev);
 
-	phy_suspend(priv->phydev);
+	if (!device_may_wakeup(d))
+		phy_suspend(priv->phydev);
 
 	netif_device_detach(dev);
 
@@ -3499,7 +3500,8 @@ static int bcmgenet_resume(struct device
 
 	netif_device_attach(dev);
 
-	phy_resume(priv->phydev);
+	if (!device_may_wakeup(d))
+		phy_resume(priv->phydev);
 
 	if (priv->eee.eee_enabled)
 		bcmgenet_eee_enable_set(dev, true);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/genet/bcmmii.c	2017-09-27 08:40:05.000000000 -0400
@@ -220,20 +220,6 @@ void bcmgenet_phy_power_set(struct net_d
 	udelay(60);
 }
 
-static void bcmgenet_internal_phy_setup(struct net_device *dev)
-{
-	struct bcmgenet_priv *priv = netdev_priv(dev);
-	u32 reg;
-
-	/* Power up PHY */
-	bcmgenet_phy_power_set(dev, true);
-	/* enable APD */
-	reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT);
-	reg |= EXT_PWR_DN_EN_LD;
-	bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT);
-	bcmgenet_mii_reset(dev);
-}
-
 static void bcmgenet_moca_phy_setup(struct bcmgenet_priv *priv)
 {
 	u32 reg;
@@ -281,7 +267,6 @@ int bcmgenet_mii_config(struct net_devic
 
 		if (priv->internal_phy) {
 			phy_name = "internal PHY";
-			bcmgenet_internal_phy_setup(dev);
 		} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
 			phy_name = "MoCA";
 			bcmgenet_moca_phy_setup(priv);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/tg3.c linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/tg3.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/broadcom/tg3.c	2016-12-11 17:50:46.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/broadcom/tg3.c	2017-09-27 14:56:44.000000000 -0400
@@ -8711,11 +8711,14 @@ static void tg3_free_consistent(struct t
 	tg3_mem_rx_release(tp);
 	tg3_mem_tx_release(tp);
 
+	/* Protect tg3_get_stats64() from reading freed tp->hw_stats. */
+	tg3_full_lock(tp, 0);
 	if (tp->hw_stats) {
 		dma_free_coherent(&tp->pdev->dev, sizeof(struct tg3_hw_stats),
 				  tp->hw_stats, tp->stats_mapping);
 		tp->hw_stats = NULL;
 	}
+	tg3_full_unlock(tp);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c	2017-09-27 08:40:05.000000000 -0400
@@ -230,7 +230,7 @@ static int cn23xx_pf_soft_reset(struct o
 	/* Wait for 100ms as Octeon resets. */
 	mdelay(100);
 
-	if (octeon_read_csr64(oct, CN23XX_SLI_SCRATCH1) == 0x1234ULL) {
+	if (octeon_read_csr64(oct, CN23XX_SLI_SCRATCH1)) {
 		dev_err(&oct->pci_dev->dev, "OCTEON[%d]: Soft reset failed\n",
 			oct->octeon_id);
 		return 1;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/liquidio/cn66xx_device.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,7 +48,7 @@ int lio_cn6xxx_soft_reset(struct octeon_
 	/* Wait for 10ms as Octeon resets. */
 	mdelay(100);
 
-	if (octeon_read_csr64(oct, CN6XXX_SLI_SCRATCH1) == 0x1234ULL) {
+	if (octeon_read_csr64(oct, CN6XXX_SLI_SCRATCH1)) {
 		dev_err(&oct->pci_dev->dev, "Soft reset failed\n");
 		return 1;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.c	2017-09-27 08:40:05.000000000 -0400
@@ -31,6 +31,7 @@ struct lmac {
 	u8                      lmac_type;
 	u8                      lane_to_sds;
 	bool                    use_training;
+	bool                    autoneg;
 	bool			link_up;
 	int			lmacid; /* ID within BGX */
 	int			lmacid_bd; /* ID on board */
@@ -47,8 +48,9 @@ struct lmac {
 struct bgx {
 	u8			bgx_id;
 	struct	lmac		lmac[MAX_LMAC_PER_BGX];
-	int			lmac_count;
+	u8			lmac_count;
 	u8			max_lmac;
+	u8                      acpi_lmac_idx;
 	void __iomem		*reg_base;
 	struct pci_dev		*pdev;
 	bool                    is_dlm;
@@ -418,7 +420,17 @@ static int bgx_lmac_sgmii_init(struct bg
 	/* power down, reset autoneg, autoneg enable */
 	cfg = bgx_reg_read(bgx, lmacid, BGX_GMP_PCS_MRX_CTL);
 	cfg &= ~PCS_MRX_CTL_PWR_DN;
-	cfg |= (PCS_MRX_CTL_RST_AN | PCS_MRX_CTL_AN_EN);
+	cfg |= PCS_MRX_CTL_RST_AN;
+	if (lmac->phydev) {
+		cfg |= PCS_MRX_CTL_AN_EN;
+	} else {
+		/* In scenarios where PHY driver is not present or it's a
+		 * non-standard PHY, FW sets AN_EN to inform Linux driver
+		 * to do auto-neg and link polling or not.
+		 */
+		if (cfg & PCS_MRX_CTL_AN_EN)
+			lmac->autoneg = true;
+	}
 	bgx_reg_write(bgx, lmacid, BGX_GMP_PCS_MRX_CTL, cfg);
 
 	if (lmac->lmac_type == BGX_MODE_QSGMII) {
@@ -429,7 +441,7 @@ static int bgx_lmac_sgmii_init(struct bg
 		return 0;
 	}
 
-	if (lmac->lmac_type == BGX_MODE_SGMII) {
+	if ((lmac->lmac_type == BGX_MODE_SGMII) && lmac->phydev) {
 		if (bgx_poll_reg(bgx, lmacid, BGX_GMP_PCS_MRX_STATUS,
 				 PCS_MRX_STATUS_AN_CPT, false)) {
 			dev_err(&bgx->pdev->dev, "BGX AN_CPT not completed\n");
@@ -623,12 +635,71 @@ static int bgx_xaui_check_link(struct lm
 	return -1;
 }
 
+static void bgx_poll_for_sgmii_link(struct lmac *lmac)
+{
+	u64 pcs_link, an_result;
+	u8 speed;
+
+	pcs_link = bgx_reg_read(lmac->bgx, lmac->lmacid,
+				BGX_GMP_PCS_MRX_STATUS);
+
+	/*Link state bit is sticky, read it again*/
+	if (!(pcs_link & PCS_MRX_STATUS_LINK))
+		pcs_link = bgx_reg_read(lmac->bgx, lmac->lmacid,
+					BGX_GMP_PCS_MRX_STATUS);
+
+	if (bgx_poll_reg(lmac->bgx, lmac->lmacid, BGX_GMP_PCS_MRX_STATUS,
+			 PCS_MRX_STATUS_AN_CPT, false)) {
+		lmac->link_up = false;
+		lmac->last_speed = SPEED_UNKNOWN;
+		lmac->last_duplex = DUPLEX_UNKNOWN;
+		goto next_poll;
+	}
+
+	lmac->link_up = ((pcs_link & PCS_MRX_STATUS_LINK) != 0) ? true : false;
+	an_result = bgx_reg_read(lmac->bgx, lmac->lmacid,
+				 BGX_GMP_PCS_ANX_AN_RESULTS);
+
+	speed = (an_result >> 3) & 0x3;
+	lmac->last_duplex = (an_result >> 1) & 0x1;
+	switch (speed) {
+	case 0:
+		lmac->last_speed = 10;
+		break;
+	case 1:
+		lmac->last_speed = 100;
+		break;
+	case 2:
+		lmac->last_speed = 1000;
+		break;
+	default:
+		lmac->link_up = false;
+		lmac->last_speed = SPEED_UNKNOWN;
+		lmac->last_duplex = DUPLEX_UNKNOWN;
+		break;
+	}
+
+next_poll:
+
+	if (lmac->last_link != lmac->link_up) {
+		if (lmac->link_up)
+			bgx_sgmii_change_link_state(lmac);
+		lmac->last_link = lmac->link_up;
+	}
+
+	queue_delayed_work(lmac->check_link, &lmac->dwork, HZ * 3);
+}
+
 static void bgx_poll_for_link(struct work_struct *work)
 {
 	struct lmac *lmac;
 	u64 spu_link, smu_link;
 
 	lmac = container_of(work, struct lmac, dwork.work);
+	if (lmac->is_sgmii) {
+		bgx_poll_for_sgmii_link(lmac);
+		return;
+	}
 
 	/* Receive link is latching low. Force it high and verify it */
 	bgx_reg_modify(lmac->bgx, lmac->lmacid,
@@ -720,9 +791,21 @@ static int bgx_lmac_enable(struct bgx *b
 	    (lmac->lmac_type != BGX_MODE_XLAUI) &&
 	    (lmac->lmac_type != BGX_MODE_40G_KR) &&
 	    (lmac->lmac_type != BGX_MODE_10G_KR)) {
-		if (!lmac->phydev)
-			return -ENODEV;
-
+		if (!lmac->phydev) {
+			if (lmac->autoneg) {
+				bgx_reg_write(bgx, lmacid,
+					      BGX_GMP_PCS_LINKX_TIMER,
+					      PCS_LINKX_TIMER_COUNT);
+				goto poll;
+			} else {
+				/* Default to below link speed and duplex */
+				lmac->link_up = true;
+				lmac->last_speed = 1000;
+				lmac->last_duplex = 1;
+				bgx_sgmii_change_link_state(lmac);
+				return 0;
+			}
+		}
 		lmac->phydev->dev_flags = 0;
 
 		if (phy_connect_direct(&lmac->netdev, lmac->phydev,
@@ -731,15 +814,17 @@ static int bgx_lmac_enable(struct bgx *b
 			return -ENODEV;
 
 		phy_start_aneg(lmac->phydev);
-	} else {
-		lmac->check_link = alloc_workqueue("check_link", WQ_UNBOUND |
-						   WQ_MEM_RECLAIM, 1);
-		if (!lmac->check_link)
-			return -ENOMEM;
-		INIT_DELAYED_WORK(&lmac->dwork, bgx_poll_for_link);
-		queue_delayed_work(lmac->check_link, &lmac->dwork, 0);
+		return 0;
 	}
 
+poll:
+	lmac->check_link = alloc_workqueue("check_link", WQ_UNBOUND |
+					   WQ_MEM_RECLAIM, 1);
+	if (!lmac->check_link)
+		return -ENOMEM;
+	INIT_DELAYED_WORK(&lmac->dwork, bgx_poll_for_link);
+	queue_delayed_work(lmac->check_link, &lmac->dwork, 0);
+
 	return 0;
 }
 
@@ -1075,13 +1160,13 @@ static acpi_status bgx_acpi_register_phy
 	if (acpi_bus_get_device(handle, &adev))
 		goto out;
 
-	acpi_get_mac_address(dev, adev, bgx->lmac[bgx->lmac_count].mac);
+	acpi_get_mac_address(dev, adev, bgx->lmac[bgx->acpi_lmac_idx].mac);
 
-	SET_NETDEV_DEV(&bgx->lmac[bgx->lmac_count].netdev, dev);
+	SET_NETDEV_DEV(&bgx->lmac[bgx->acpi_lmac_idx].netdev, dev);
 
-	bgx->lmac[bgx->lmac_count].lmacid = bgx->lmac_count;
+	bgx->lmac[bgx->acpi_lmac_idx].lmacid = bgx->acpi_lmac_idx;
+	bgx->acpi_lmac_idx++; /* move to next LMAC */
 out:
-	bgx->lmac_count++;
 	return AE_OK;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h
--- linux-libre-4.9-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/cavium/thunder/thunder_bgx.h	2017-09-27 08:40:05.000000000 -0400
@@ -144,10 +144,15 @@
 #define	 PCS_MRX_CTL_LOOPBACK1			BIT_ULL(14)
 #define	 PCS_MRX_CTL_RESET			BIT_ULL(15)
 #define BGX_GMP_PCS_MRX_STATUS		0x30008
+#define	 PCS_MRX_STATUS_LINK			BIT_ULL(2)
 #define	 PCS_MRX_STATUS_AN_CPT			BIT_ULL(5)
+#define BGX_GMP_PCS_ANX_ADV		0x30010
 #define BGX_GMP_PCS_ANX_AN_RESULTS	0x30020
+#define BGX_GMP_PCS_LINKX_TIMER		0x30040
+#define PCS_LINKX_TIMER_COUNT			0x1E84
 #define BGX_GMP_PCS_SGM_AN_ADV		0x30068
 #define BGX_GMP_PCS_MISCX_CTL		0x30078
+#define  PCS_MISC_CTL_MODE			BIT_ULL(8)
 #define  PCS_MISC_CTL_DISP_EN			BIT_ULL(13)
 #define  PCS_MISC_CTL_GMX_ENO			BIT_ULL(11)
 #define  PCS_MISC_CTL_SAMP_PT_MASK	0x7Full
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c linux-libre-4.9.52-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c	2016-12-11 17:49:40.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c	2017-09-27 14:54:38.000000000 -0400
@@ -2199,9 +2199,10 @@ static int cxgb_up(struct adapter *adap)
 {
 	int err;
 
+	mutex_lock(&uld_mutex);
 	err = setup_sge_queues(adap);
 	if (err)
-		goto out;
+		goto rel_lock;
 	err = setup_rss(adap);
 	if (err)
 		goto freeq;
@@ -2224,23 +2225,28 @@ static int cxgb_up(struct adapter *adap)
 		if (err)
 			goto irq_err;
 	}
+
 	enable_rx(adap);
 	t4_sge_start(adap);
 	t4_intr_enable(adap);
 	adap->flags |= FULL_INIT_DONE;
+	mutex_unlock(&uld_mutex);
+
 	notify_ulds(adap, CXGB4_STATE_UP);
 #if IS_ENABLED(CONFIG_IPV6)
 	update_clip(adap);
 #endif
 	/* Initialize hash mac addr list*/
 	INIT_LIST_HEAD(&adap->mac_hlist);
- out:
 	return err;
+
  irq_err:
 	dev_err(adap->pdev_dev, "request_irq failed, err %d\n", err);
  freeq:
 	t4_free_sge_resources(adap);
-	goto out;
+ rel_lock:
+	mutex_unlock(&uld_mutex);
+	return err;
 }
 
 static void cxgb_down(struct adapter *adapter)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c linux-libre-4.9.52-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c	2017-09-27 08:40:05.000000000 -0400
@@ -317,12 +317,12 @@ int t4_wr_mbox_meat_timeout(struct adapt
 
 	if (v != MBOX_OWNER_DRV) {
 		ret = (v == MBOX_OWNER_FW) ? -EBUSY : -ETIMEDOUT;
-		t4_record_mbox(adap, cmd, MBOX_LEN, access, ret);
+		t4_record_mbox(adap, cmd, size, access, ret);
 		return ret;
 	}
 
 	/* Copy in the new mailbox command and send it on its way ... */
-	t4_record_mbox(adap, cmd, MBOX_LEN, access, 0);
+	t4_record_mbox(adap, cmd, size, access, 0);
 	for (i = 0; i < size; i += 8)
 		t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p++));
 
@@ -371,7 +371,7 @@ int t4_wr_mbox_meat_timeout(struct adapt
 	}
 
 	ret = (pcie_fw & PCIE_FW_ERR_F) ? -ENXIO : -ETIMEDOUT;
-	t4_record_mbox(adap, cmd, MBOX_LEN, access, ret);
+	t4_record_mbox(adap, cmd, size, access, ret);
 	dev_err(adap->pdev_dev, "command %#x in mailbox %d timed out\n",
 		*(const u8 *)cmd, mbox);
 	t4_report_fw_error(adap);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c linux-libre-4.9.52-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/emulex/benet/be_cmds.c	2017-09-27 08:40:05.000000000 -0400
@@ -1118,7 +1118,7 @@ int be_cmd_pmac_add(struct be_adapter *a
 err:
 	mutex_unlock(&adapter->mcc_lock);
 
-	 if (status == MCC_STATUS_UNAUTHORIZED_REQUEST)
+	 if (base_status(status) == MCC_STATUS_UNAUTHORIZED_REQUEST)
 		status = -EPERM;
 
 	return status;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/emulex/benet/be_main.c linux-libre-4.9.52-gnu/drivers/net/ethernet/emulex/benet/be_main.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/emulex/benet/be_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/emulex/benet/be_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -319,6 +319,13 @@ static int be_mac_addr_set(struct net_de
 	if (ether_addr_equal(addr->sa_data, adapter->dev_mac))
 		return 0;
 
+	/* BE3 VFs without FILTMGMT privilege are not allowed to set its MAC
+	 * address
+	 */
+	if (BEx_chip(adapter) && be_virtfn(adapter) &&
+	    !check_privilege(adapter, BE_PRIV_FILTMGMT))
+		return -EPERM;
+
 	/* if device is not running, copy MAC to netdev->dev_addr */
 	if (!netif_running(netdev))
 		goto done;
@@ -3630,7 +3637,11 @@ static void be_rx_qs_destroy(struct be_a
 
 static void be_disable_if_filters(struct be_adapter *adapter)
 {
-	be_dev_mac_del(adapter, adapter->pmac_id[0]);
+	/* Don't delete MAC on BE3 VFs without FILTMGMT privilege  */
+	if (!BEx_chip(adapter) || !be_virtfn(adapter) ||
+	    check_privilege(adapter, BE_PRIV_FILTMGMT))
+		be_dev_mac_del(adapter, adapter->pmac_id[0]);
+
 	be_clear_uc_list(adapter);
 	be_clear_mc_list(adapter);
 
@@ -3783,8 +3794,9 @@ static int be_enable_if_filters(struct b
 	if (status)
 		return status;
 
-	/* For BE3 VFs, the PF programs the initial MAC address */
-	if (!(BEx_chip(adapter) && be_virtfn(adapter))) {
+	/* Don't add MAC on BE3 VFs without FILTMGMT privilege */
+	if (!BEx_chip(adapter) || !be_virtfn(adapter) ||
+	    check_privilege(adapter, BE_PRIV_FILTMGMT)) {
 		status = be_dev_mac_add(adapter, adapter->netdev->dev_addr);
 		if (status)
 			return status;
@@ -5144,9 +5156,11 @@ static netdev_features_t be_features_che
 	struct be_adapter *adapter = netdev_priv(dev);
 	u8 l4_hdr = 0;
 
-	/* The code below restricts offload features for some tunneled packets.
+	/* The code below restricts offload features for some tunneled and
+	 * Q-in-Q packets.
 	 * Offload features for normal (non tunnel) packets are unchanged.
 	 */
+	features = vlan_features_check(skb, features);
 	if (!skb->encapsulation ||
 	    !(adapter->flags & BE_FLAGS_VXLAN_OFFLOADS))
 		return features;
@@ -5172,7 +5186,9 @@ static netdev_features_t be_features_che
 	    skb->inner_protocol_type != ENCAP_TYPE_ETHER ||
 	    skb->inner_protocol != htons(ETH_P_TEB) ||
 	    skb_inner_mac_header(skb) - skb_transport_header(skb) !=
-	    sizeof(struct udphdr) + sizeof(struct vxlanhdr))
+		sizeof(struct udphdr) + sizeof(struct vxlanhdr) ||
+	    !adapter->vxlan_port ||
+	    udp_hdr(skb)->dest != adapter->vxlan_port)
 		return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 
 	return features;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/ethoc.c linux-libre-4.9.52-gnu/drivers/net/ethernet/ethoc.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/ethoc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/ethoc.c	2017-09-27 08:40:05.000000000 -0400
@@ -710,6 +710,8 @@ static int ethoc_open(struct net_device
 	if (ret)
 		return ret;
 
+	napi_enable(&priv->napi);
+
 	ethoc_init_ring(priv, dev->mem_start);
 	ethoc_reset(priv);
 
@@ -722,7 +724,6 @@ static int ethoc_open(struct net_device
 	}
 
 	phy_start(dev->phydev);
-	napi_enable(&priv->napi);
 
 	if (netif_msg_ifup(priv)) {
 		dev_info(&dev->dev, "I/O: %08lx Memory: %08lx-%08lx\n",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/freescale/fman/mac.c linux-libre-4.9.52-gnu/drivers/net/ethernet/freescale/fman/mac.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/freescale/fman/mac.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/freescale/fman/mac.c	2017-09-27 08:40:05.000000000 -0400
@@ -622,6 +622,9 @@ static struct platform_device *dpaa_eth_
 		goto no_mem;
 	}
 
+	pdev->dev.of_node = node;
+	pdev->dev.parent = priv->dev;
+
 	ret = platform_device_add_data(pdev, &data, sizeof(data));
 	if (ret)
 		goto err;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/freescale/gianfar.c linux-libre-4.9.52-gnu/drivers/net/ethernet/freescale/gianfar.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/freescale/gianfar.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/freescale/gianfar.c	2017-09-27 08:40:05.000000000 -0400
@@ -2007,8 +2007,8 @@ static void free_skb_rx_queue(struct gfa
 		if (!rxb->page)
 			continue;
 
-		dma_unmap_single(rx_queue->dev, rxb->dma,
-				 PAGE_SIZE, DMA_FROM_DEVICE);
+		dma_unmap_page(rx_queue->dev, rxb->dma,
+			       PAGE_SIZE, DMA_FROM_DEVICE);
 		__free_page(rxb->page);
 
 		rxb->page = NULL;
@@ -2951,7 +2951,7 @@ static bool gfar_add_rx_frag(struct gfar
 	}
 
 	/* try reuse page */
-	if (unlikely(page_count(page) != 1))
+	if (unlikely(page_count(page) != 1 || page_is_pfmemalloc(page)))
 		return false;
 
 	/* change offset to the other half */
@@ -3690,7 +3690,7 @@ static noinline void gfar_update_link_st
 		u32 tempval1 = gfar_read(&regs->maccfg1);
 		u32 tempval = gfar_read(&regs->maccfg2);
 		u32 ecntrl = gfar_read(&regs->ecntrl);
-		u32 tx_flow_oldval = (tempval & MACCFG1_TX_FLOW);
+		u32 tx_flow_oldval = (tempval1 & MACCFG1_TX_FLOW);
 
 		if (phydev->duplex != priv->oldduplex) {
 			if (!(phydev->duplex))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h linux-libre-4.9.52-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
--- linux-libre-4.9-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h	2017-09-27 08:40:05.000000000 -0400
@@ -1007,9 +1007,7 @@
 
 static inline void dsaf_write_reg(void __iomem *base, u32 reg, u32 value)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(base);
-
-	writel(value, reg_addr + reg);
+	writel(value, base + reg);
 }
 
 #define dsaf_write_dev(a, reg, value) \
@@ -1017,9 +1015,7 @@ static inline void dsaf_write_reg(void _
 
 static inline u32 dsaf_read_reg(u8 __iomem *base, u32 reg)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(base);
-
-	return readl(reg_addr + reg);
+	return readl(base + reg);
 }
 
 static inline void dsaf_write_syscon(struct regmap *base, u32 reg, u32 value)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c linux-libre-4.9.52-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/hisilicon/hns/hns_enet.c	2017-09-27 08:40:05.000000000 -0400
@@ -304,8 +304,8 @@ int hns_nic_net_xmit_hw(struct net_devic
 			struct hns_nic_ring_data *ring_data)
 {
 	struct hns_nic_priv *priv = netdev_priv(ndev);
-	struct device *dev = priv->dev;
 	struct hnae_ring *ring = ring_data->ring;
+	struct device *dev = ring_to_dev(ring);
 	struct netdev_queue *dev_queue;
 	struct skb_frag_struct *frag;
 	int buf_num;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/ibm/ibmveth.c linux-libre-4.9.52-gnu/drivers/net/ethernet/ibm/ibmveth.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/ibm/ibmveth.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/ibm/ibmveth.c	2017-09-27 08:40:05.000000000 -0400
@@ -1181,7 +1181,9 @@ map_failed:
 
 static void ibmveth_rx_mss_helper(struct sk_buff *skb, u16 mss, int lrg_pkt)
 {
+	struct tcphdr *tcph;
 	int offset = 0;
+	int hdr_len;
 
 	/* only TCP packets will be aggregated */
 	if (skb->protocol == htons(ETH_P_IP)) {
@@ -1208,14 +1210,20 @@ static void ibmveth_rx_mss_helper(struct
 	/* if mss is not set through Large Packet bit/mss in rx buffer,
 	 * expect that the mss will be written to the tcp header checksum.
 	 */
+	tcph = (struct tcphdr *)(skb->data + offset);
 	if (lrg_pkt) {
 		skb_shinfo(skb)->gso_size = mss;
 	} else if (offset) {
-		struct tcphdr *tcph = (struct tcphdr *)(skb->data + offset);
-
 		skb_shinfo(skb)->gso_size = ntohs(tcph->check);
 		tcph->check = 0;
 	}
+
+	if (skb_shinfo(skb)->gso_size) {
+		hdr_len = offset + tcph->doff * 4;
+		skb_shinfo(skb)->gso_segs =
+				DIV_ROUND_UP(skb->len - hdr_len,
+					     skb_shinfo(skb)->gso_size);
+	}
 }
 
 static int ibmveth_poll(struct napi_struct *napi, int budget)
@@ -1596,8 +1604,11 @@ static int ibmveth_probe(struct vio_dev
 	netdev->netdev_ops = &ibmveth_netdev_ops;
 	netdev->ethtool_ops = &netdev_ethtool_ops;
 	SET_NETDEV_DEV(netdev, &dev->dev);
-	netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
-		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+	netdev->hw_features = NETIF_F_SG;
+	if (vio_get_attribute(dev, "ibm,illan-options", NULL) != NULL) {
+		netdev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+				       NETIF_F_RXCSUM;
+	}
 
 	netdev->features |= netdev->hw_features;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/ibm/ibmvnic.c linux-libre-4.9.52-gnu/drivers/net/ethernet/ibm/ibmvnic.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/ibm/ibmvnic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/ibm/ibmvnic.c	2017-09-27 08:40:05.000000000 -0400
@@ -189,9 +189,10 @@ static int alloc_long_term_buff(struct i
 	}
 	ltb->map_id = adapter->map_id;
 	adapter->map_id++;
+
+	init_completion(&adapter->fw_done);
 	send_request_map(adapter, ltb->addr,
 			 ltb->size, ltb->map_id);
-	init_completion(&adapter->fw_done);
 	wait_for_completion(&adapter->fw_done);
 	return 0;
 }
@@ -505,7 +506,7 @@ rx_pool_alloc_failed:
 	adapter->rx_pool = NULL;
 rx_pool_arr_alloc_failed:
 	for (i = 0; i < adapter->req_rx_queues; i++)
-		napi_enable(&adapter->napi[i]);
+		napi_disable(&adapter->napi[i]);
 alloc_napi_failed:
 	return -ENOMEM;
 }
@@ -1133,10 +1134,10 @@ static void ibmvnic_get_ethtool_stats(st
 	crq.request_statistics.ioba = cpu_to_be32(adapter->stats_token);
 	crq.request_statistics.len =
 	    cpu_to_be32(sizeof(struct ibmvnic_statistics));
-	ibmvnic_send_crq(adapter, &crq);
 
 	/* Wait for data to be written */
 	init_completion(&adapter->stats_done);
+	ibmvnic_send_crq(adapter, &crq);
 	wait_for_completion(&adapter->stats_done);
 
 	for (i = 0; i < ARRAY_SIZE(ibmvnic_stats); i++)
@@ -2197,12 +2198,12 @@ static void handle_error_info_rsp(union
 
 	if (!found) {
 		dev_err(dev, "Couldn't find error id %x\n",
-			crq->request_error_rsp.error_id);
+			be32_to_cpu(crq->request_error_rsp.error_id));
 		return;
 	}
 
 	dev_err(dev, "Detailed info for error id %x:",
-		crq->request_error_rsp.error_id);
+		be32_to_cpu(crq->request_error_rsp.error_id));
 
 	for (i = 0; i < error_buff->len; i++) {
 		pr_cont("%02x", (int)error_buff->buff[i]);
@@ -2281,8 +2282,8 @@ static void handle_error_indication(unio
 	dev_err(dev, "Firmware reports %serror id %x, cause %d\n",
 		crq->error_indication.
 		    flags & IBMVNIC_FATAL_ERROR ? "FATAL " : "",
-		crq->error_indication.error_id,
-		crq->error_indication.error_cause);
+		be32_to_cpu(crq->error_indication.error_id),
+		be16_to_cpu(crq->error_indication.error_cause));
 
 	error_buff = kmalloc(sizeof(*error_buff), GFP_ATOMIC);
 	if (!error_buff)
@@ -2400,10 +2401,10 @@ static void handle_request_cap_rsp(union
 	case PARTIALSUCCESS:
 		dev_info(dev, "req=%lld, rsp=%ld in %s queue, retrying.\n",
 			 *req_value,
-			 (long int)be32_to_cpu(crq->request_capability_rsp.
+			 (long int)be64_to_cpu(crq->request_capability_rsp.
 					       number), name);
 		release_sub_crqs_no_irqs(adapter);
-		*req_value = be32_to_cpu(crq->request_capability_rsp.number);
+		*req_value = be64_to_cpu(crq->request_capability_rsp.number);
 		init_sub_crqs(adapter, 1);
 		return;
 	default:
@@ -2809,9 +2810,9 @@ static ssize_t trace_read(struct file *f
 	crq.collect_fw_trace.correlator = adapter->ras_comps[num].correlator;
 	crq.collect_fw_trace.ioba = cpu_to_be32(trace_tok);
 	crq.collect_fw_trace.len = adapter->ras_comps[num].trace_buff_size;
-	ibmvnic_send_crq(adapter, &crq);
 
 	init_completion(&adapter->fw_done);
+	ibmvnic_send_crq(adapter, &crq);
 	wait_for_completion(&adapter->fw_done);
 
 	if (*ppos + len > be32_to_cpu(adapter->ras_comps[num].trace_buff_size))
@@ -3591,9 +3592,9 @@ static int ibmvnic_dump_show(struct seq_
 	memset(&crq, 0, sizeof(crq));
 	crq.request_dump_size.first = IBMVNIC_CRQ_CMD;
 	crq.request_dump_size.cmd = REQUEST_DUMP_SIZE;
-	ibmvnic_send_crq(adapter, &crq);
 
 	init_completion(&adapter->fw_done);
+	ibmvnic_send_crq(adapter, &crq);
 	wait_for_completion(&adapter->fw_done);
 
 	seq_write(seq, adapter->dump_data, adapter->dump_data_size);
@@ -3639,8 +3640,8 @@ static void handle_crq_init_rsp(struct w
 		}
 	}
 
-	send_version_xchg(adapter);
 	reinit_completion(&adapter->init_done);
+	send_version_xchg(adapter);
 	if (!wait_for_completion_timeout(&adapter->init_done, timeout)) {
 		dev_err(dev, "Passive init timeout\n");
 		goto task_failed;
@@ -3650,9 +3651,9 @@ static void handle_crq_init_rsp(struct w
 		if (adapter->renegotiate) {
 			adapter->renegotiate = false;
 			release_sub_crqs_no_irqs(adapter);
-			send_cap_queries(adapter);
 
 			reinit_completion(&adapter->init_done);
+			send_cap_queries(adapter);
 			if (!wait_for_completion_timeout(&adapter->init_done,
 							 timeout)) {
 				dev_err(dev, "Passive init timeout\n");
@@ -3780,9 +3781,9 @@ static int ibmvnic_probe(struct vio_dev
 			adapter->debugfs_dump = ent;
 		}
 	}
-	ibmvnic_send_crq_init(adapter);
 
 	init_completion(&adapter->init_done);
+	ibmvnic_send_crq_init(adapter);
 	if (!wait_for_completion_timeout(&adapter->init_done, timeout))
 		return 0;
 
@@ -3790,9 +3791,9 @@ static int ibmvnic_probe(struct vio_dev
 		if (adapter->renegotiate) {
 			adapter->renegotiate = false;
 			release_sub_crqs_no_irqs(adapter);
-			send_cap_queries(adapter);
 
 			reinit_completion(&adapter->init_done);
+			send_cap_queries(adapter);
 			if (!wait_for_completion_timeout(&adapter->init_done,
 							 timeout))
 				return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c linux-libre-4.9.52-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/intel/igb/e1000_82575.c	2017-09-27 08:40:05.000000000 -0400
@@ -246,6 +246,7 @@ static s32 igb_init_phy_params_82575(str
 			E1000_STATUS_FUNC_SHIFT;
 
 	/* Set phy->phy_addr and phy->id. */
+	igb_write_phy_reg_82580(hw, I347AT4_PAGE_SELECT, 0);
 	ret_val = igb_get_phy_id_82575(hw);
 	if (ret_val)
 		return ret_val;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c linux-libre-4.9.52-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/intel/igb/e1000_phy.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,6 +77,10 @@ s32 igb_get_phy_id(struct e1000_hw *hw)
 	s32 ret_val = 0;
 	u16 phy_id;
 
+	/* ensure PHY page selection to fix misconfigured i210 */
+	if ((hw->mac.type == e1000_i210) || (hw->mac.type == e1000_i211))
+		phy->ops.write_reg(hw, I347AT4_PAGE_SELECT, 0);
+
 	ret_val = phy->ops.read_reg(hw, PHY_ID1, &phy_id);
 	if (ret_val)
 		goto out;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/korina.c linux-libre-4.9.52-gnu/drivers/net/ethernet/korina.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/korina.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/korina.c	2017-09-27 08:40:05.000000000 -0400
@@ -900,10 +900,10 @@ static void korina_restart_task(struct w
 				DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR,
 				&lp->rx_dma_regs->dmasm);
 
-	korina_free_ring(dev);
-
 	napi_disable(&lp->napi);
 
+	korina_free_ring(dev);
+
 	if (korina_init(dev) < 0) {
 		printk(KERN_ERR "%s: cannot restart device\n", dev->name);
 		return;
@@ -1064,12 +1064,12 @@ static int korina_close(struct net_devic
 	tmp = tmp | DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR;
 	writel(tmp, &lp->rx_dma_regs->dmasm);
 
-	korina_free_ring(dev);
-
 	napi_disable(&lp->napi);
 
 	cancel_work_sync(&lp->restart_task);
 
+	korina_free_ring(dev);
+
 	free_irq(lp->rx_irq, dev);
 	free_irq(lp->tx_irq, dev);
 	free_irq(lp->ovr_irq, dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/marvell/mvpp2.c linux-libre-4.9.52-gnu/drivers/net/ethernet/marvell/mvpp2.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/marvell/mvpp2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/marvell/mvpp2.c	2017-09-27 08:40:05.000000000 -0400
@@ -770,6 +770,17 @@ struct mvpp2_rx_desc {
 	u32 reserved8;
 };
 
+struct mvpp2_txq_pcpu_buf {
+	/* Transmitted SKB */
+	struct sk_buff *skb;
+
+	/* Physical address of transmitted buffer */
+	dma_addr_t phys;
+
+	/* Size transmitted */
+	size_t size;
+};
+
 /* Per-CPU Tx queue control */
 struct mvpp2_txq_pcpu {
 	int cpu;
@@ -785,11 +796,8 @@ struct mvpp2_txq_pcpu {
 	/* Number of Tx DMA descriptors reserved for each CPU */
 	int reserved_num;
 
-	/* Array of transmitted skb */
-	struct sk_buff **tx_skb;
-
-	/* Array of transmitted buffers' physical addresses */
-	dma_addr_t *tx_buffs;
+	/* Infos about transmitted buffers */
+	struct mvpp2_txq_pcpu_buf *buffs;
 
 	/* Index of last TX DMA descriptor that was inserted */
 	int txq_put_index;
@@ -979,10 +987,11 @@ static void mvpp2_txq_inc_put(struct mvp
 			      struct sk_buff *skb,
 			      struct mvpp2_tx_desc *tx_desc)
 {
-	txq_pcpu->tx_skb[txq_pcpu->txq_put_index] = skb;
-	if (skb)
-		txq_pcpu->tx_buffs[txq_pcpu->txq_put_index] =
-							 tx_desc->buf_phys_addr;
+	struct mvpp2_txq_pcpu_buf *tx_buf =
+		txq_pcpu->buffs + txq_pcpu->txq_put_index;
+	tx_buf->skb = skb;
+	tx_buf->size = tx_desc->data_size;
+	tx_buf->phys = tx_desc->buf_phys_addr + tx_desc->packet_offset;
 	txq_pcpu->txq_put_index++;
 	if (txq_pcpu->txq_put_index == txq_pcpu->size)
 		txq_pcpu->txq_put_index = 0;
@@ -4401,17 +4410,16 @@ static void mvpp2_txq_bufs_free(struct m
 	int i;
 
 	for (i = 0; i < num; i++) {
-		dma_addr_t buf_phys_addr =
-				    txq_pcpu->tx_buffs[txq_pcpu->txq_get_index];
-		struct sk_buff *skb = txq_pcpu->tx_skb[txq_pcpu->txq_get_index];
+		struct mvpp2_txq_pcpu_buf *tx_buf =
+			txq_pcpu->buffs + txq_pcpu->txq_get_index;
 
 		mvpp2_txq_inc_get(txq_pcpu);
 
-		dma_unmap_single(port->dev->dev.parent, buf_phys_addr,
-				 skb_headlen(skb), DMA_TO_DEVICE);
-		if (!skb)
+		dma_unmap_single(port->dev->dev.parent, tx_buf->phys,
+				 tx_buf->size, DMA_TO_DEVICE);
+		if (!tx_buf->skb)
 			continue;
-		dev_kfree_skb_any(skb);
+		dev_kfree_skb_any(tx_buf->skb);
 	}
 }
 
@@ -4651,15 +4659,10 @@ static int mvpp2_txq_init(struct mvpp2_p
 	for_each_present_cpu(cpu) {
 		txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
 		txq_pcpu->size = txq->size;
-		txq_pcpu->tx_skb = kmalloc(txq_pcpu->size *
-					   sizeof(*txq_pcpu->tx_skb),
-					   GFP_KERNEL);
-		if (!txq_pcpu->tx_skb)
-			goto error;
-
-		txq_pcpu->tx_buffs = kmalloc(txq_pcpu->size *
-					     sizeof(dma_addr_t), GFP_KERNEL);
-		if (!txq_pcpu->tx_buffs)
+		txq_pcpu->buffs = kmalloc(txq_pcpu->size *
+					  sizeof(struct mvpp2_txq_pcpu_buf),
+					  GFP_KERNEL);
+		if (!txq_pcpu->buffs)
 			goto error;
 
 		txq_pcpu->count = 0;
@@ -4673,8 +4676,7 @@ static int mvpp2_txq_init(struct mvpp2_p
 error:
 	for_each_present_cpu(cpu) {
 		txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
-		kfree(txq_pcpu->tx_skb);
-		kfree(txq_pcpu->tx_buffs);
+		kfree(txq_pcpu->buffs);
 	}
 
 	dma_free_coherent(port->dev->dev.parent,
@@ -4693,8 +4695,7 @@ static void mvpp2_txq_deinit(struct mvpp
 
 	for_each_present_cpu(cpu) {
 		txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
-		kfree(txq_pcpu->tx_skb);
-		kfree(txq_pcpu->tx_buffs);
+		kfree(txq_pcpu->buffs);
 	}
 
 	if (txq->descs)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mediatek/mtk_eth_soc.c	2017-09-27 08:40:05.000000000 -0400
@@ -2518,7 +2518,7 @@ static int mtk_remove(struct platform_de
 }
 
 const struct of_device_id of_mtk_match[] = {
-	{ .compatible = "mediatek,mt7623-eth" },
+	{ .compatible = "mediatek,mt2701-eth" },
 	{},
 };
 MODULE_DEVICE_TABLE(of, of_mtk_match);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/catas.c	2017-09-27 08:40:05.000000000 -0400
@@ -158,7 +158,7 @@ static int mlx4_reset_slave(struct mlx4_
 	return -ETIMEDOUT;
 }
 
-static int mlx4_comm_internal_err(u32 slave_read)
+int mlx4_comm_internal_err(u32 slave_read)
 {
 	return (u32)COMM_CHAN_EVENT_INTERNAL_ERR ==
 		(slave_read & (u32)COMM_CHAN_EVENT_INTERNAL_ERR) ? 1 : 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/cq.c	2017-09-27 08:40:05.000000000 -0400
@@ -101,13 +101,19 @@ void mlx4_cq_completion(struct mlx4_dev
 {
 	struct mlx4_cq *cq;
 
+	rcu_read_lock();
 	cq = radix_tree_lookup(&mlx4_priv(dev)->cq_table.tree,
 			       cqn & (dev->caps.num_cqs - 1));
+	rcu_read_unlock();
+
 	if (!cq) {
 		mlx4_dbg(dev, "Completion event for bogus CQ %08x\n", cqn);
 		return;
 	}
 
+	/* Acessing the CQ outside of rcu_read_lock is safe, because
+	 * the CQ is freed only after interrupt handling is completed.
+	 */
 	++cq->arm_sn;
 
 	cq->comp(cq);
@@ -118,23 +124,19 @@ void mlx4_cq_event(struct mlx4_dev *dev,
 	struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
 	struct mlx4_cq *cq;
 
-	spin_lock(&cq_table->lock);
-
+	rcu_read_lock();
 	cq = radix_tree_lookup(&cq_table->tree, cqn & (dev->caps.num_cqs - 1));
-	if (cq)
-		atomic_inc(&cq->refcount);
-
-	spin_unlock(&cq_table->lock);
+	rcu_read_unlock();
 
 	if (!cq) {
-		mlx4_warn(dev, "Async event for bogus CQ %08x\n", cqn);
+		mlx4_dbg(dev, "Async event for bogus CQ %08x\n", cqn);
 		return;
 	}
 
+	/* Acessing the CQ outside of rcu_read_lock is safe, because
+	 * the CQ is freed only after interrupt handling is completed.
+	 */
 	cq->event(cq, event_type);
-
-	if (atomic_dec_and_test(&cq->refcount))
-		complete(&cq->free);
 }
 
 static int mlx4_SW2HW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
@@ -301,9 +303,9 @@ int mlx4_cq_alloc(struct mlx4_dev *dev,
 	if (err)
 		return err;
 
-	spin_lock_irq(&cq_table->lock);
+	spin_lock(&cq_table->lock);
 	err = radix_tree_insert(&cq_table->tree, cq->cqn, cq);
-	spin_unlock_irq(&cq_table->lock);
+	spin_unlock(&cq_table->lock);
 	if (err)
 		goto err_icm;
 
@@ -349,9 +351,9 @@ int mlx4_cq_alloc(struct mlx4_dev *dev,
 	return 0;
 
 err_radix:
-	spin_lock_irq(&cq_table->lock);
+	spin_lock(&cq_table->lock);
 	radix_tree_delete(&cq_table->tree, cq->cqn);
-	spin_unlock_irq(&cq_table->lock);
+	spin_unlock(&cq_table->lock);
 
 err_icm:
 	mlx4_cq_free_icm(dev, cq->cqn);
@@ -370,15 +372,15 @@ void mlx4_cq_free(struct mlx4_dev *dev,
 	if (err)
 		mlx4_warn(dev, "HW2SW_CQ failed (%d) for CQN %06x\n", err, cq->cqn);
 
+	spin_lock(&cq_table->lock);
+	radix_tree_delete(&cq_table->tree, cq->cqn);
+	spin_unlock(&cq_table->lock);
+
 	synchronize_irq(priv->eq_table.eq[MLX4_CQ_TO_EQ_VECTOR(cq->vector)].irq);
 	if (priv->eq_table.eq[MLX4_CQ_TO_EQ_VECTOR(cq->vector)].irq !=
 	    priv->eq_table.eq[MLX4_EQ_ASYNC].irq)
 		synchronize_irq(priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
 
-	spin_lock_irq(&cq_table->lock);
-	radix_tree_delete(&cq_table->tree, cq->cqn);
-	spin_unlock_irq(&cq_table->lock);
-
 	if (atomic_dec_and_test(&cq->refcount))
 		complete(&cq->free);
 	wait_for_completion(&cq->free);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/en_netdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -1740,8 +1740,11 @@ int mlx4_en_start_port(struct net_device
 	/* Process all completions if exist to prevent
 	 * the queues freezing if they are full
 	 */
-	for (i = 0; i < priv->rx_ring_num; i++)
+	for (i = 0; i < priv->rx_ring_num; i++) {
+		local_bh_disable();
 		napi_schedule(&priv->rx_cq[i]->napi);
+		local_bh_enable();
+	}
 
 	netif_tx_start_all_queues(dev);
 	netif_device_attach(dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/en_rx.c	2017-09-27 08:40:05.000000000 -0400
@@ -444,8 +444,14 @@ int mlx4_en_activate_rx_rings(struct mlx
 		ring->cqn = priv->rx_cq[ring_ind]->mcq.cqn;
 
 		ring->stride = stride;
-		if (ring->stride <= TXBB_SIZE)
+		if (ring->stride <= TXBB_SIZE) {
+			/* Stamp first unused send wqe */
+			__be32 *ptr = (__be32 *)ring->buf;
+			__be32 stamp = cpu_to_be32(1 << STAMP_SHIFT);
+			*ptr = stamp;
+			/* Move pointer to start of rx section */
 			ring->buf += TXBB_SIZE;
+		}
 
 		ring->log_stride = ffs(ring->stride) - 1;
 		ring->buf_size = ring->size * ring->stride;
@@ -507,8 +513,11 @@ void mlx4_en_recover_from_oom(struct mlx
 		return;
 
 	for (ring = 0; ring < priv->rx_ring_num; ring++) {
-		if (mlx4_en_is_ring_empty(priv->rx_ring[ring]))
+		if (mlx4_en_is_ring_empty(priv->rx_ring[ring])) {
+			local_bh_disable();
 			napi_reschedule(&priv->rx_cq[ring]->napi);
+			local_bh_enable();
+		}
 	}
 }
 
@@ -715,16 +724,21 @@ static inline __wsum get_fixed_vlan_csum
  * header, the HW adds it. To address that, we are subtracting the pseudo
  * header checksum from the checksum value provided by the HW.
  */
-static void get_fixed_ipv4_csum(__wsum hw_checksum, struct sk_buff *skb,
-				struct iphdr *iph)
+static int get_fixed_ipv4_csum(__wsum hw_checksum, struct sk_buff *skb,
+			       struct iphdr *iph)
 {
 	__u16 length_for_csum = 0;
 	__wsum csum_pseudo_header = 0;
+	__u8 ipproto = iph->protocol;
+
+	if (unlikely(ipproto == IPPROTO_SCTP))
+		return -1;
 
 	length_for_csum = (be16_to_cpu(iph->tot_len) - (iph->ihl << 2));
 	csum_pseudo_header = csum_tcpudp_nofold(iph->saddr, iph->daddr,
-						length_for_csum, iph->protocol, 0);
+						length_for_csum, ipproto, 0);
 	skb->csum = csum_sub(hw_checksum, csum_pseudo_header);
+	return 0;
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -735,17 +749,20 @@ static void get_fixed_ipv4_csum(__wsum h
 static int get_fixed_ipv6_csum(__wsum hw_checksum, struct sk_buff *skb,
 			       struct ipv6hdr *ipv6h)
 {
+	__u8 nexthdr = ipv6h->nexthdr;
 	__wsum csum_pseudo_hdr = 0;
 
-	if (unlikely(ipv6h->nexthdr == IPPROTO_FRAGMENT ||
-		     ipv6h->nexthdr == IPPROTO_HOPOPTS))
+	if (unlikely(nexthdr == IPPROTO_FRAGMENT ||
+		     nexthdr == IPPROTO_HOPOPTS ||
+		     nexthdr == IPPROTO_SCTP))
 		return -1;
-	hw_checksum = csum_add(hw_checksum, (__force __wsum)htons(ipv6h->nexthdr));
+	hw_checksum = csum_add(hw_checksum, (__force __wsum)htons(nexthdr));
 
 	csum_pseudo_hdr = csum_partial(&ipv6h->saddr,
 				       sizeof(ipv6h->saddr) + sizeof(ipv6h->daddr), 0);
 	csum_pseudo_hdr = csum_add(csum_pseudo_hdr, (__force __wsum)ipv6h->payload_len);
-	csum_pseudo_hdr = csum_add(csum_pseudo_hdr, (__force __wsum)ntohs(ipv6h->nexthdr));
+	csum_pseudo_hdr = csum_add(csum_pseudo_hdr,
+				   (__force __wsum)htons(nexthdr));
 
 	skb->csum = csum_sub(hw_checksum, csum_pseudo_hdr);
 	skb->csum = csum_add(skb->csum, csum_partial(ipv6h, sizeof(struct ipv6hdr), 0));
@@ -768,11 +785,10 @@ static int check_csum(struct mlx4_cqe *c
 	}
 
 	if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV4))
-		get_fixed_ipv4_csum(hw_checksum, skb, hdr);
+		return get_fixed_ipv4_csum(hw_checksum, skb, hdr);
 #if IS_ENABLED(CONFIG_IPV6)
-	else if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV6))
-		if (unlikely(get_fixed_ipv6_csum(hw_checksum, skb, hdr)))
-			return -1;
+	if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV6))
+		return get_fixed_ipv6_csum(hw_checksum, skb, hdr);
 #endif
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/eq.c	2017-09-27 08:40:05.000000000 -0400
@@ -554,8 +554,9 @@ static int mlx4_eq_int(struct mlx4_dev *
 			break;
 
 		case MLX4_EVENT_TYPE_SRQ_LIMIT:
-			mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT\n",
-				 __func__);
+			mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT. srq_no=0x%x, eq 0x%x\n",
+				 __func__, be32_to_cpu(eqe->event.srq.srqn),
+				 eq->eqn);
 		case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
 			if (mlx4_is_master(dev)) {
 				/* forward only to slave owning the SRQ */
@@ -570,15 +571,19 @@ static int mlx4_eq_int(struct mlx4_dev *
 						  eq->eqn, eq->cons_index, ret);
 					break;
 				}
-				mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
-					  __func__, slave,
-					  be32_to_cpu(eqe->event.srq.srqn),
-					  eqe->type, eqe->subtype);
+				if (eqe->type ==
+				    MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+					mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
+						  __func__, slave,
+						  be32_to_cpu(eqe->event.srq.srqn),
+						  eqe->type, eqe->subtype);
 
 				if (!ret && slave != dev->caps.function) {
-					mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
-						  __func__, eqe->type,
-						  eqe->subtype, slave);
+					if (eqe->type ==
+					    MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+						mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
+							  __func__, eqe->type,
+							  eqe->subtype, slave);
 					mlx4_slave_event(dev, slave, eqe);
 					break;
 				}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/icm.c	2017-09-27 08:40:05.000000000 -0400
@@ -118,8 +118,13 @@ static int mlx4_alloc_icm_coherent(struc
 	if (!buf)
 		return -ENOMEM;
 
+	if (offset_in_page(buf)) {
+		dma_free_coherent(dev, PAGE_SIZE << order,
+				  buf, sg_dma_address(mem));
+		return -ENOMEM;
+	}
+
 	sg_set_buf(mem, buf, PAGE_SIZE << order);
-	BUG_ON(mem->offset);
 	sg_dma_len(mem) = PAGE_SIZE << order;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/intf.c	2017-09-27 08:40:05.000000000 -0400
@@ -222,6 +222,18 @@ void mlx4_unregister_device(struct mlx4_
 		return;
 
 	mlx4_stop_catas_poll(dev);
+	if (dev->persist->interface_state & MLX4_INTERFACE_STATE_DELETION &&
+	    mlx4_is_slave(dev)) {
+		/* In mlx4_remove_one on a VF */
+		u32 slave_read =
+			swab32(readl(&mlx4_priv(dev)->mfunc.comm->slave_read));
+
+		if (mlx4_comm_internal_err(slave_read)) {
+			mlx4_dbg(dev, "%s: comm channel is down, entering error state.\n",
+				 __func__);
+			mlx4_enter_error_state(dev->persist);
+		}
+	}
 	mutex_lock(&intf_mutex);
 
 	list_for_each_entry(intf, &intf_list, list)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/main.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/main.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -42,6 +42,7 @@
 #include <linux/io-mapping.h>
 #include <linux/delay.h>
 #include <linux/kmod.h>
+#include <linux/etherdevice.h>
 #include <net/devlink.h>
 
 #include <linux/mlx4/device.h>
@@ -429,7 +430,7 @@ static int mlx4_dev_cap(struct mlx4_dev
 		/* Virtual PCI function needs to determine UAR page size from
 		 * firmware. Only master PCI function can set the uar page size
 		 */
-		if (enable_4k_uar)
+		if (enable_4k_uar || !dev->persist->num_vfs)
 			dev->uar_page_shift = DEFAULT_UAR_PAGE_SHIFT;
 		else
 			dev->uar_page_shift = PAGE_SHIFT;
@@ -782,6 +783,23 @@ int mlx4_is_slave_active(struct mlx4_dev
 }
 EXPORT_SYMBOL(mlx4_is_slave_active);
 
+void mlx4_handle_eth_header_mcast_prio(struct mlx4_net_trans_rule_hw_ctrl *ctrl,
+				       struct _rule_hw *eth_header)
+{
+	if (is_multicast_ether_addr(eth_header->eth.dst_mac) ||
+	    is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
+		struct mlx4_net_trans_rule_hw_eth *eth =
+			(struct mlx4_net_trans_rule_hw_eth *)eth_header;
+		struct _rule_hw *next_rule = (struct _rule_hw *)(eth + 1);
+		bool last_rule = next_rule->size == 0 && next_rule->id == 0 &&
+			next_rule->rsvd == 0;
+
+		if (last_rule)
+			ctrl->prio = cpu_to_be16(MLX4_DOMAIN_NIC);
+	}
+}
+EXPORT_SYMBOL(mlx4_handle_eth_header_mcast_prio);
+
 static void slave_adjust_steering_mode(struct mlx4_dev *dev,
 				       struct mlx4_dev_cap *dev_cap,
 				       struct mlx4_init_hca_param *hca_param)
@@ -2251,7 +2269,7 @@ static int mlx4_init_hca(struct mlx4_dev
 
 		dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
 
-		if (enable_4k_uar) {
+		if (enable_4k_uar || !dev->persist->num_vfs) {
 			init_hca.log_uar_sz = ilog2(dev->caps.num_uars) +
 						    PAGE_SHIFT - DEFAULT_UAR_PAGE_SHIFT;
 			init_hca.uar_page_sz = DEFAULT_UAR_PAGE_SHIFT - 12;
@@ -4020,49 +4038,51 @@ int mlx4_restart_one(struct pci_dev *pde
 	return err;
 }
 
+#define MLX_SP(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_FORCE_SENSE_PORT }
+#define MLX_VF(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_IS_VF }
+#define MLX_GN(id) { PCI_VDEVICE(MELLANOX, id), 0 }
+
 static const struct pci_device_id mlx4_pci_table[] = {
-	/* MT25408 "Hermon" SDR */
-	{ PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25408 "Hermon" DDR */
-	{ PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25408 "Hermon" QDR */
-	{ PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25408 "Hermon" DDR PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25408 "Hermon" QDR PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25408 "Hermon" EN 10GigE */
-	{ PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25408 "Hermon" EN 10GigE PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25458 ConnectX EN 10GBASE-T 10GigE */
-	{ PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
-	{ PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT26468 ConnectX EN 10GigE PCIe gen2*/
-	{ PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
-	{ PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT26478 ConnectX2 40GigE PCIe gen2 */
-	{ PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
-	/* MT25400 Family [ConnectX-2 Virtual Function] */
-	{ PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
+	/* MT25408 "Hermon" */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_SDR),	/* SDR */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_DDR),	/* DDR */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_QDR),	/* QDR */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2), /* DDR Gen2 */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2),	/* QDR Gen2 */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_EN),	/* EN 10GigE */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2),  /* EN 10GigE Gen2 */
+	/* MT25458 ConnectX EN 10GBASE-T */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN),
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2),	/* Gen2 */
+	/* MT26468 ConnectX EN 10GigE PCIe Gen2*/
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2),
+	/* MT26438 ConnectX EN 40GigE PCIe Gen2 5GT/s */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2),
+	/* MT26478 ConnectX2 40GigE PCIe Gen2 */
+	MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX2),
+	/* MT25400 Family [ConnectX-2] */
+	MLX_VF(0x1002),					/* Virtual Function */
 	/* MT27500 Family [ConnectX-3] */
-	{ PCI_VDEVICE(MELLANOX, 0x1003), 0 },
-	/* MT27500 Family [ConnectX-3 Virtual Function] */
-	{ PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
-	{ PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
-	{ PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
+	MLX_GN(PCI_DEVICE_ID_MELLANOX_CONNECTX3),
+	MLX_VF(0x1004),					/* Virtual Function */
+	MLX_GN(0x1005),					/* MT27510 Family */
+	MLX_GN(0x1006),					/* MT27511 Family */
+	MLX_GN(PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO),	/* MT27520 Family */
+	MLX_GN(0x1008),					/* MT27521 Family */
+	MLX_GN(0x1009),					/* MT27530 Family */
+	MLX_GN(0x100a),					/* MT27531 Family */
+	MLX_GN(0x100b),					/* MT27540 Family */
+	MLX_GN(0x100c),					/* MT27541 Family */
+	MLX_GN(0x100d),					/* MT27550 Family */
+	MLX_GN(0x100e),					/* MT27551 Family */
+	MLX_GN(0x100f),					/* MT27560 Family */
+	MLX_GN(0x1010),					/* MT27561 Family */
+
+	/*
+	 * See the mellanox_check_broken_intx_masking() quirk when
+	 * adding devices
+	 */
+
 	{ 0, }
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/mlx4.h	2017-09-27 08:40:05.000000000 -0400
@@ -1220,6 +1220,7 @@ void mlx4_qp_event(struct mlx4_dev *dev,
 void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
 
 void mlx4_enter_error_state(struct mlx4_dev_persistent *persist);
+int mlx4_comm_internal_err(u32 slave_read);
 
 int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
 		    enum mlx4_port_type *type);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c	2017-09-27 08:40:05.000000000 -0400
@@ -2980,6 +2980,9 @@ int mlx4_RST2INIT_QP_wrapper(struct mlx4
 		put_res(dev, slave, srqn, RES_SRQ);
 		qp->srq = srq;
 	}
+
+	/* Save param3 for dynamic changes from VST back to VGT */
+	qp->param3 = qpc->param3;
 	put_res(dev, slave, rcqn, RES_CQ);
 	put_res(dev, slave, mtt_base, RES_MTT);
 	res_end_move(dev, slave, RES_QP, qpn);
@@ -3772,7 +3775,6 @@ int mlx4_INIT2RTR_QP_wrapper(struct mlx4
 	int qpn = vhcr->in_modifier & 0x7fffff;
 	struct res_qp *qp;
 	u8 orig_sched_queue;
-	__be32	orig_param3 = qpc->param3;
 	u8 orig_vlan_control = qpc->pri_path.vlan_control;
 	u8 orig_fvl_rx = qpc->pri_path.fvl_rx;
 	u8 orig_pri_path_fl = qpc->pri_path.fl;
@@ -3814,7 +3816,6 @@ out:
 	 */
 	if (!err) {
 		qp->sched_queue = orig_sched_queue;
-		qp->param3	= orig_param3;
 		qp->vlan_control = orig_vlan_control;
 		qp->fvl_rx	=  orig_fvl_rx;
 		qp->pri_path_fl = orig_pri_path_fl;
@@ -4164,22 +4165,6 @@ static int validate_eth_header_mac(int s
 	return 0;
 }
 
-static void handle_eth_header_mcast_prio(struct mlx4_net_trans_rule_hw_ctrl *ctrl,
-					 struct _rule_hw *eth_header)
-{
-	if (is_multicast_ether_addr(eth_header->eth.dst_mac) ||
-	    is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
-		struct mlx4_net_trans_rule_hw_eth *eth =
-			(struct mlx4_net_trans_rule_hw_eth *)eth_header;
-		struct _rule_hw *next_rule = (struct _rule_hw *)(eth + 1);
-		bool last_rule = next_rule->size == 0 && next_rule->id == 0 &&
-			next_rule->rsvd == 0;
-
-		if (last_rule)
-			ctrl->prio = cpu_to_be16(MLX4_DOMAIN_NIC);
-	}
-}
-
 /*
  * In case of missing eth header, append eth header with a MAC address
  * assigned to the VF.
@@ -4363,10 +4348,7 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper
 	header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id));
 
 	if (header_id == MLX4_NET_TRANS_RULE_ID_ETH)
-		handle_eth_header_mcast_prio(ctrl, rule_header);
-
-	if (slave == dev->caps.function)
-		goto execute;
+		mlx4_handle_eth_header_mcast_prio(ctrl, rule_header);
 
 	switch (header_id) {
 	case MLX4_NET_TRANS_RULE_ID_ETH:
@@ -4394,7 +4376,6 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper
 		goto err_put_qp;
 	}
 
-execute:
 	err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param,
 			   vhcr->in_modifier, 0,
 			   MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
@@ -4473,6 +4454,7 @@ int mlx4_QP_FLOW_STEERING_DETACH_wrapper
 	struct res_qp *rqp;
 	struct res_fs_rule *rrule;
 	u64 mirr_reg_id;
+	int qpn;
 
 	if (dev->caps.steering_mode !=
 	    MLX4_STEERING_MODE_DEVICE_MANAGED)
@@ -4489,10 +4471,11 @@ int mlx4_QP_FLOW_STEERING_DETACH_wrapper
 	}
 	mirr_reg_id = rrule->mirr_rule_id;
 	kfree(rrule->mirr_mbox);
+	qpn = rrule->qpn;
 
 	/* Release the rule form busy state before removal */
 	put_res(dev, slave, vhcr->in_param, RES_FS_RULE);
-	err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp);
+	err = get_res(dev, slave, qpn, RES_QP, &rqp);
 	if (err)
 		return err;
 
@@ -4517,7 +4500,7 @@ int mlx4_QP_FLOW_STEERING_DETACH_wrapper
 	if (!err)
 		atomic_dec(&rqp->ref_count);
 out:
-	put_res(dev, slave, rrule->qpn, RES_QP);
+	put_res(dev, slave, qpn, RES_QP);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/cmd.c	2017-09-27 08:40:05.000000000 -0400
@@ -367,6 +367,8 @@ static int mlx5_internal_err_ret_value(s
 	case MLX5_CMD_OP_QUERY_VPORT_COUNTER:
 	case MLX5_CMD_OP_ALLOC_Q_COUNTER:
 	case MLX5_CMD_OP_QUERY_Q_COUNTER:
+	case MLX5_CMD_OP_SET_RATE_LIMIT:
+	case MLX5_CMD_OP_QUERY_RATE_LIMIT:
 	case MLX5_CMD_OP_ALLOC_PD:
 	case MLX5_CMD_OP_ALLOC_UAR:
 	case MLX5_CMD_OP_CONFIG_INT_MODERATION:
@@ -500,6 +502,8 @@ const char *mlx5_command_str(int command
 	MLX5_COMMAND_STR_CASE(ALLOC_Q_COUNTER);
 	MLX5_COMMAND_STR_CASE(DEALLOC_Q_COUNTER);
 	MLX5_COMMAND_STR_CASE(QUERY_Q_COUNTER);
+	MLX5_COMMAND_STR_CASE(SET_RATE_LIMIT);
+	MLX5_COMMAND_STR_CASE(QUERY_RATE_LIMIT);
 	MLX5_COMMAND_STR_CASE(ALLOC_PD);
 	MLX5_COMMAND_STR_CASE(DEALLOC_PD);
 	MLX5_COMMAND_STR_CASE(ALLOC_UAR);
@@ -763,9 +767,13 @@ static void cb_timeout_handler(struct wo
 	mlx5_core_warn(dev, "%s(0x%x) timeout. Will cause a leak of a command resource\n",
 		       mlx5_command_str(msg_to_opcode(ent->in)),
 		       msg_to_opcode(ent->in));
-	mlx5_cmd_comp_handler(dev, 1UL << ent->idx);
+	mlx5_cmd_comp_handler(dev, 1UL << ent->idx, true);
 }
 
+static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg);
+static void mlx5_free_cmd_msg(struct mlx5_core_dev *dev,
+			      struct mlx5_cmd_msg *msg);
+
 static void cmd_work_handler(struct work_struct *work)
 {
 	struct mlx5_cmd_work_ent *ent = container_of(work, struct mlx5_cmd_work_ent, work);
@@ -775,16 +783,27 @@ static void cmd_work_handler(struct work
 	struct mlx5_cmd_layout *lay;
 	struct semaphore *sem;
 	unsigned long flags;
+	int alloc_ret;
 
 	sem = ent->page_queue ? &cmd->pages_sem : &cmd->sem;
 	down(sem);
 	if (!ent->page_queue) {
-		ent->idx = alloc_ent(cmd);
-		if (ent->idx < 0) {
+		alloc_ret = alloc_ent(cmd);
+		if (alloc_ret < 0) {
+			if (ent->callback) {
+				ent->callback(-EAGAIN, ent->context);
+				mlx5_free_cmd_msg(dev, ent->out);
+				free_msg(dev, ent->in);
+				free_cmd(ent);
+			} else {
+				ent->ret = -EAGAIN;
+				complete(&ent->done);
+			}
 			mlx5_core_err(dev, "failed to allocate command entry\n");
 			up(sem);
 			return;
 		}
+		ent->idx = alloc_ret;
 	} else {
 		ent->idx = cmd->max_reg_cmds;
 		spin_lock_irqsave(&cmd->alloc_lock, flags);
@@ -793,6 +812,7 @@ static void cmd_work_handler(struct work
 	}
 
 	cmd->ent_arr[ent->idx] = ent;
+	set_bit(MLX5_CMD_ENT_STATE_PENDING_COMP, &ent->state);
 	lay = get_inst(cmd, ent->idx);
 	ent->lay = lay;
 	memset(lay, 0, sizeof(*lay));
@@ -814,6 +834,20 @@ static void cmd_work_handler(struct work
 	if (ent->callback)
 		schedule_delayed_work(&ent->cb_timeout_work, cb_timeout);
 
+	/* Skip sending command to fw if internal error */
+	if (pci_channel_offline(dev->pdev) ||
+	    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) {
+		u8 status = 0;
+		u32 drv_synd;
+
+		ent->ret = mlx5_internal_err_ret_value(dev, msg_to_opcode(ent->in), &drv_synd, &status);
+		MLX5_SET(mbox_out, ent->out, status, status);
+		MLX5_SET(mbox_out, ent->out, syndrome, drv_synd);
+
+		mlx5_cmd_comp_handler(dev, 1UL << ent->idx, true);
+		return;
+	}
+
 	/* ring doorbell after the descriptor is valid */
 	mlx5_core_dbg(dev, "writing 0x%x to command doorbell\n", 1 << ent->idx);
 	wmb();
@@ -824,7 +858,7 @@ static void cmd_work_handler(struct work
 		poll_timeout(ent);
 		/* make sure we read the descriptor after ownership is SW */
 		rmb();
-		mlx5_cmd_comp_handler(dev, 1UL << ent->idx);
+		mlx5_cmd_comp_handler(dev, 1UL << ent->idx, (ent->ret == -ETIMEDOUT));
 	}
 }
 
@@ -868,7 +902,7 @@ static int wait_func(struct mlx5_core_de
 		wait_for_completion(&ent->done);
 	} else if (!wait_for_completion_timeout(&ent->done, timeout)) {
 		ent->ret = -ETIMEDOUT;
-		mlx5_cmd_comp_handler(dev, 1UL << ent->idx);
+		mlx5_cmd_comp_handler(dev, 1UL << ent->idx, true);
 	}
 
 	err = ent->ret;
@@ -1365,7 +1399,7 @@ static void free_msg(struct mlx5_core_de
 	}
 }
 
-void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec)
+void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced)
 {
 	struct mlx5_cmd *cmd = &dev->cmd;
 	struct mlx5_cmd_work_ent *ent;
@@ -1385,6 +1419,19 @@ void mlx5_cmd_comp_handler(struct mlx5_c
 			struct semaphore *sem;
 
 			ent = cmd->ent_arr[i];
+
+			/* if we already completed the command, ignore it */
+			if (!test_and_clear_bit(MLX5_CMD_ENT_STATE_PENDING_COMP,
+						&ent->state)) {
+				/* only real completion can free the cmd slot */
+				if (!forced) {
+					mlx5_core_err(dev, "Command completion arrived after timeout (entry idx = %d).\n",
+						      ent->idx);
+					free_ent(cmd, ent->idx);
+				}
+				continue;
+			}
+
 			if (ent->callback)
 				cancel_delayed_work(&ent->cb_timeout_work);
 			if (ent->page_queue)
@@ -1407,7 +1454,10 @@ void mlx5_cmd_comp_handler(struct mlx5_c
 				mlx5_core_dbg(dev, "command completed. ret 0x%x, delivery status %s(0x%x)\n",
 					      ent->ret, deliv_status_to_str(ent->status), ent->status);
 			}
-			free_ent(cmd, ent->idx);
+
+			/* only real completion will free the entry slot */
+			if (!forced)
+				free_ent(cmd, ent->idx);
 
 			if (ent->callback) {
 				ds = ent->ts2 - ent->ts1;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_clock.c	2017-09-27 08:40:05.000000000 -0400
@@ -62,12 +62,14 @@ static void mlx5e_timestamp_overflow(str
 	struct delayed_work *dwork = to_delayed_work(work);
 	struct mlx5e_tstamp *tstamp = container_of(dwork, struct mlx5e_tstamp,
 						   overflow_work);
+	struct mlx5e_priv *priv = container_of(tstamp, struct mlx5e_priv, tstamp);
 	unsigned long flags;
 
 	write_lock_irqsave(&tstamp->lock, flags);
 	timecounter_read(&tstamp->clock);
 	write_unlock_irqrestore(&tstamp->lock, flags);
-	schedule_delayed_work(&tstamp->overflow_work, tstamp->overflow_period);
+	queue_delayed_work(priv->wq, &tstamp->overflow_work,
+			   msecs_to_jiffies(tstamp->overflow_period * 1000));
 }
 
 int mlx5e_hwstamp_set(struct net_device *dev, struct ifreq *ifr)
@@ -263,7 +265,7 @@ void mlx5e_timestamp_init(struct mlx5e_p
 
 	INIT_DELAYED_WORK(&tstamp->overflow_work, mlx5e_timestamp_overflow);
 	if (tstamp->overflow_period)
-		schedule_delayed_work(&tstamp->overflow_work, 0);
+		queue_delayed_work(priv->wq, &tstamp->overflow_work, 0);
 	else
 		mlx5_core_warn(priv->mdev, "invalid overflow period, overflow_work is not scheduled\n");
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c	2017-09-27 08:40:05.000000000 -0400
@@ -751,7 +751,6 @@ static void get_supported(u32 eth_proto_
 	ptys2ethtool_supported_port(link_ksettings, eth_proto_cap);
 	ptys2ethtool_supported_link(supported, eth_proto_cap);
 	ethtool_link_ksettings_add_link_mode(link_ksettings, supported, Pause);
-	ethtool_link_ksettings_add_link_mode(link_ksettings, supported, Asym_Pause);
 }
 
 static void get_advertising(u32 eth_proto_cap, u8 tx_pause,
@@ -761,7 +760,7 @@ static void get_advertising(u32 eth_prot
 	unsigned long *advertising = link_ksettings->link_modes.advertising;
 
 	ptys2ethtool_adver_link(advertising, eth_proto_cap);
-	if (tx_pause)
+	if (rx_pause)
 		ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, Pause);
 	if (tx_pause ^ rx_pause)
 		ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, Asym_Pause);
@@ -806,6 +805,8 @@ static int mlx5e_get_link_ksettings(stru
 	struct mlx5e_priv *priv    = netdev_priv(netdev);
 	struct mlx5_core_dev *mdev = priv->mdev;
 	u32 out[MLX5_ST_SZ_DW(ptys_reg)] = {0};
+	u32 rx_pause = 0;
+	u32 tx_pause = 0;
 	u32 eth_proto_cap;
 	u32 eth_proto_admin;
 	u32 eth_proto_lp;
@@ -828,11 +829,13 @@ static int mlx5e_get_link_ksettings(stru
 	an_disable_admin = MLX5_GET(ptys_reg, out, an_disable_admin);
 	an_status        = MLX5_GET(ptys_reg, out, an_status);
 
+	mlx5_query_port_pause(mdev, &rx_pause, &tx_pause);
+
 	ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
 	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 
 	get_supported(eth_proto_cap, link_ksettings);
-	get_advertising(eth_proto_admin, 0, 0, link_ksettings);
+	get_advertising(eth_proto_admin, tx_pause, rx_pause, link_ksettings);
 	get_speed_duplex(netdev, eth_proto_oper, link_ksettings);
 
 	eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
@@ -975,15 +978,18 @@ static int mlx5e_get_rxfh(struct net_dev
 
 static void mlx5e_modify_tirs_hash(struct mlx5e_priv *priv, void *in, int inlen)
 {
-	struct mlx5_core_dev *mdev = priv->mdev;
 	void *tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
-	int i;
+	struct mlx5_core_dev *mdev = priv->mdev;
+	int ctxlen = MLX5_ST_SZ_BYTES(tirc);
+	int tt;
 
 	MLX5_SET(modify_tir_in, in, bitmask.hash, 1);
-	mlx5e_build_tir_ctx_hash(tirc, priv);
 
-	for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
-		mlx5_core_modify_tir(mdev, priv->indir_tir[i].tirn, in, inlen);
+	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
+		memset(tirc, 0, ctxlen);
+		mlx5e_build_indir_tir_ctx_hash(priv, tirc, tt);
+		mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in, inlen);
+	}
 }
 
 static int mlx5e_set_rxfh(struct net_device *dev, const u32 *indir,
@@ -991,6 +997,7 @@ static int mlx5e_set_rxfh(struct net_dev
 {
 	struct mlx5e_priv *priv = netdev_priv(dev);
 	int inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
+	bool hash_changed = false;
 	void *in;
 
 	if ((hfunc != ETH_RSS_HASH_NO_CHANGE) &&
@@ -1012,14 +1019,21 @@ static int mlx5e_set_rxfh(struct net_dev
 		mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, 0);
 	}
 
-	if (key)
+	if (hfunc != ETH_RSS_HASH_NO_CHANGE &&
+	    hfunc != priv->params.rss_hfunc) {
+		priv->params.rss_hfunc = hfunc;
+		hash_changed = true;
+	}
+
+	if (key) {
 		memcpy(priv->params.toeplitz_hash_key, key,
 		       sizeof(priv->params.toeplitz_hash_key));
+		hash_changed = hash_changed ||
+			       priv->params.rss_hfunc == ETH_RSS_HASH_TOP;
+	}
 
-	if (hfunc != ETH_RSS_HASH_NO_CHANGE)
-		priv->params.rss_hfunc = hfunc;
-
-	mlx5e_modify_tirs_hash(priv, in, inlen);
+	if (hash_changed)
+		mlx5e_modify_tirs_hash(priv, in, inlen);
 
 	mutex_unlock(&priv->state_lock);
 
@@ -1169,11 +1183,11 @@ static int mlx5e_get_ts_info(struct net_
 				 SOF_TIMESTAMPING_RX_HARDWARE |
 				 SOF_TIMESTAMPING_RAW_HARDWARE;
 
-	info->tx_types = (BIT(1) << HWTSTAMP_TX_OFF) |
-			 (BIT(1) << HWTSTAMP_TX_ON);
+	info->tx_types = BIT(HWTSTAMP_TX_OFF) |
+			 BIT(HWTSTAMP_TX_ON);
 
-	info->rx_filters = (BIT(1) << HWTSTAMP_FILTER_NONE) |
-			   (BIT(1) << HWTSTAMP_FILTER_ALL);
+	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
+			   BIT(HWTSTAMP_FILTER_ALL);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1081,7 +1081,7 @@ int mlx5e_create_flow_steering(struct ml
 					       MLX5_FLOW_NAMESPACE_KERNEL);
 
 	if (!priv->fs.ns)
-		return -EINVAL;
+		return -EOPNOTSUPP;
 
 	err = mlx5e_arfs_create_tables(priv);
 	if (err) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c	2017-09-27 08:40:05.000000000 -0400
@@ -247,6 +247,7 @@ static int set_flow_attrs(u32 *match_c,
 	}
 	if (fs->flow_type & FLOW_MAC_EXT &&
 	    !is_zero_ether_addr(fs->m_ext.h_dest)) {
+		mask_spec(fs->m_ext.h_dest, fs->h_ext.h_dest, ETH_ALEN);
 		ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4,
 					     outer_headers_c, dmac_47_16),
 				fs->m_ext.h_dest);
@@ -275,7 +276,7 @@ static void add_rule_to_list(struct mlx5
 
 static bool outer_header_zero(u32 *match_criteria)
 {
-	int size = MLX5_ST_SZ_BYTES(fte_match_param);
+	int size = MLX5_FLD_SZ_BYTES(fte_match_param, outer_headers);
 	char *outer_headers_c = MLX5_ADDR_OF(fte_match_param, match_criteria,
 					     outer_headers);
 
@@ -562,6 +563,7 @@ int mlx5e_ethtool_get_all_flows(struct m
 	int idx = 0;
 	int err = 0;
 
+	info->data = MAX_NUM_OF_ETHTOOL_RULES;
 	while ((!err || err == -ENOENT) && idx < info->rule_cnt) {
 		err = mlx5e_ethtool_get_flow(priv, info, location);
 		if (!err)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en.h	2017-09-27 08:40:05.000000000 -0400
@@ -82,7 +82,7 @@
 #define MLX5E_VALID_NUM_MTTS(num_mtts) (MLX5_MTT_OCTW(num_mtts) <= U16_MAX)
 
 #define MLX5_UMR_ALIGN				(2048)
-#define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD	(128)
+#define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD	(256)
 
 #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ                 (64 * 1024)
 #define MLX5E_DEFAULT_LRO_TIMEOUT                       32
@@ -283,13 +283,15 @@ struct mlx5e_dma_info {
 
 struct mlx5e_rx_am_stats {
 	int ppms; /* packets per msec */
+	int bpms; /* bytes per msec */
 	int epms; /* events per msec */
 };
 
 struct mlx5e_rx_am_sample {
-	ktime_t		time;
-	unsigned int	pkt_ctr;
-	u16		event_ctr;
+	ktime_t	time;
+	u32	pkt_ctr;
+	u32	byte_ctr;
+	u16	event_ctr;
 };
 
 struct mlx5e_rx_am { /* Adaptive Moderation */
@@ -765,7 +767,8 @@ void mlx5e_disable_vlan_filter(struct ml
 int mlx5e_modify_rqs_vsd(struct mlx5e_priv *priv, bool vsd);
 
 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz, int ix);
-void mlx5e_build_tir_ctx_hash(void *tirc, struct mlx5e_priv *priv);
+void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_priv *priv, void *tirc,
+				    enum mlx5e_traffic_types tt);
 
 int mlx5e_open_locked(struct net_device *netdev);
 int mlx5e_close_locked(struct net_device *netdev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,6 +81,7 @@ static bool mlx5e_check_fragmented_strid
 static void mlx5e_set_rq_type_params(struct mlx5e_priv *priv, u8 rq_type)
 {
 	priv->params.rq_wq_type = rq_type;
+	priv->params.lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
 	switch (priv->params.rq_wq_type) {
 	case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 		priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW;
@@ -92,6 +93,10 @@ static void mlx5e_set_rq_type_params(str
 		break;
 	default: /* MLX5_WQ_TYPE_LINKED_LIST */
 		priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
+
+		/* Extra room needed for build_skb */
+		priv->params.lro_wqe_sz -= MLX5_RX_HEADROOM +
+			SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 	}
 	priv->params.min_rx_wqes = mlx5_min_rx_wqes(priv->params.rq_wq_type,
 					       BIT(priv->params.log_rq_size));
@@ -1978,8 +1983,23 @@ static void mlx5e_build_tir_ctx_lro(void
 	MLX5_SET(tirc, tirc, lro_timeout_period_usecs, priv->params.lro_timeout);
 }
 
-void mlx5e_build_tir_ctx_hash(void *tirc, struct mlx5e_priv *priv)
+void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_priv *priv, void *tirc,
+				    enum mlx5e_traffic_types tt)
 {
+	void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
+
+#define MLX5_HASH_IP            (MLX5_HASH_FIELD_SEL_SRC_IP   |\
+				 MLX5_HASH_FIELD_SEL_DST_IP)
+
+#define MLX5_HASH_IP_L4PORTS    (MLX5_HASH_FIELD_SEL_SRC_IP   |\
+				 MLX5_HASH_FIELD_SEL_DST_IP   |\
+				 MLX5_HASH_FIELD_SEL_L4_SPORT |\
+				 MLX5_HASH_FIELD_SEL_L4_DPORT)
+
+#define MLX5_HASH_IP_IPSEC_SPI  (MLX5_HASH_FIELD_SEL_SRC_IP   |\
+				 MLX5_HASH_FIELD_SEL_DST_IP   |\
+				 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
+
 	MLX5_SET(tirc, tirc, rx_hash_fn,
 		 mlx5e_rx_hash_fn(priv->params.rss_hfunc));
 	if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
@@ -1991,6 +2011,88 @@ void mlx5e_build_tir_ctx_hash(void *tirc
 		MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
 		memcpy(rss_key, priv->params.toeplitz_hash_key, len);
 	}
+
+	switch (tt) {
+	case MLX5E_TT_IPV4_TCP:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV4);
+		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+			 MLX5_L4_PROT_TYPE_TCP);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_L4PORTS);
+		break;
+
+	case MLX5E_TT_IPV6_TCP:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV6);
+		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+			 MLX5_L4_PROT_TYPE_TCP);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_L4PORTS);
+		break;
+
+	case MLX5E_TT_IPV4_UDP:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV4);
+		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+			 MLX5_L4_PROT_TYPE_UDP);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_L4PORTS);
+		break;
+
+	case MLX5E_TT_IPV6_UDP:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV6);
+		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
+			 MLX5_L4_PROT_TYPE_UDP);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_L4PORTS);
+		break;
+
+	case MLX5E_TT_IPV4_IPSEC_AH:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV4);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_IPSEC_SPI);
+		break;
+
+	case MLX5E_TT_IPV6_IPSEC_AH:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV6);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_IPSEC_SPI);
+		break;
+
+	case MLX5E_TT_IPV4_IPSEC_ESP:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV4);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_IPSEC_SPI);
+		break;
+
+	case MLX5E_TT_IPV6_IPSEC_ESP:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV6);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP_IPSEC_SPI);
+		break;
+
+	case MLX5E_TT_IPV4:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV4);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP);
+		break;
+
+	case MLX5E_TT_IPV6:
+		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
+			 MLX5_L3_PROT_TYPE_IPV6);
+		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
+			 MLX5_HASH_IP);
+		break;
+	default:
+		WARN_ONCE(true, "%s: bad traffic type!\n", __func__);
+	}
 }
 
 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
@@ -2360,110 +2462,13 @@ void mlx5e_cleanup_nic_tx(struct mlx5e_p
 static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv *priv, u32 *tirc,
 				      enum mlx5e_traffic_types tt)
 {
-	void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
-
 	MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
 
-#define MLX5_HASH_IP            (MLX5_HASH_FIELD_SEL_SRC_IP   |\
-				 MLX5_HASH_FIELD_SEL_DST_IP)
-
-#define MLX5_HASH_IP_L4PORTS    (MLX5_HASH_FIELD_SEL_SRC_IP   |\
-				 MLX5_HASH_FIELD_SEL_DST_IP   |\
-				 MLX5_HASH_FIELD_SEL_L4_SPORT |\
-				 MLX5_HASH_FIELD_SEL_L4_DPORT)
-
-#define MLX5_HASH_IP_IPSEC_SPI  (MLX5_HASH_FIELD_SEL_SRC_IP   |\
-				 MLX5_HASH_FIELD_SEL_DST_IP   |\
-				 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
-
 	mlx5e_build_tir_ctx_lro(tirc, priv);
 
 	MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
 	MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn);
-	mlx5e_build_tir_ctx_hash(tirc, priv);
-
-	switch (tt) {
-	case MLX5E_TT_IPV4_TCP:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV4);
-		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
-			 MLX5_L4_PROT_TYPE_TCP);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_L4PORTS);
-		break;
-
-	case MLX5E_TT_IPV6_TCP:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV6);
-		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
-			 MLX5_L4_PROT_TYPE_TCP);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_L4PORTS);
-		break;
-
-	case MLX5E_TT_IPV4_UDP:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV4);
-		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
-			 MLX5_L4_PROT_TYPE_UDP);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_L4PORTS);
-		break;
-
-	case MLX5E_TT_IPV6_UDP:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV6);
-		MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
-			 MLX5_L4_PROT_TYPE_UDP);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_L4PORTS);
-		break;
-
-	case MLX5E_TT_IPV4_IPSEC_AH:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV4);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_IPSEC_SPI);
-		break;
-
-	case MLX5E_TT_IPV6_IPSEC_AH:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV6);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_IPSEC_SPI);
-		break;
-
-	case MLX5E_TT_IPV4_IPSEC_ESP:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV4);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_IPSEC_SPI);
-		break;
-
-	case MLX5E_TT_IPV6_IPSEC_ESP:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV6);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP_IPSEC_SPI);
-		break;
-
-	case MLX5E_TT_IPV4:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV4);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP);
-		break;
-
-	case MLX5E_TT_IPV6:
-		MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
-			 MLX5_L3_PROT_TYPE_IPV6);
-		MLX5_SET(rx_hash_field_select, hfso, selected_fields,
-			 MLX5_HASH_IP);
-		break;
-	default:
-		WARN_ONCE(true,
-			  "mlx5e_build_indir_tir_ctx: bad traffic type!\n");
-	}
+	mlx5e_build_indir_tir_ctx_hash(priv, tirc, tt);
 }
 
 static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv *priv, u32 *tirc,
@@ -2666,8 +2671,6 @@ mlx5e_get_stats(struct net_device *dev,
 		PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
 	stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
 	stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
-	stats->tx_carrier_errors =
-		PPORT_802_3_GET(pstats, a_symbol_error_during_carrier);
 	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
 			   stats->rx_frame_errors;
 	stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
@@ -3473,12 +3476,6 @@ static void mlx5e_build_nic_netdev_priv(
 	mlx5e_build_default_indir_rqt(mdev, priv->params.indirection_rqt,
 				      MLX5E_INDIR_RQT_SIZE, profile->max_nch(mdev));
 
-	priv->params.lro_wqe_sz =
-		MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ -
-		/* Extra room needed for build_skb */
-		MLX5_RX_HEADROOM -
-		SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
-
 	/* Initialize pflags */
 	MLX5E_SET_PRIV_FLAG(priv, MLX5E_PFLAG_RX_CQE_BASED_MODER,
 			    priv->params.rx_cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
@@ -3773,14 +3770,7 @@ static void mlx5e_nic_enable(struct mlx5
 
 	mlx5_lag_add(mdev, netdev);
 
-	if (mlx5e_vxlan_allowed(mdev)) {
-		rtnl_lock();
-		udp_tunnel_get_rx_info(netdev);
-		rtnl_unlock();
-	}
-
 	mlx5e_enable_async_events(priv);
-	queue_work(priv->wq, &priv->set_rx_mode_work);
 
 	if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
 		mlx5_query_nic_vport_mac_address(mdev, 0, rep.hw_id);
@@ -3790,6 +3780,18 @@ static void mlx5e_nic_enable(struct mlx5
 		rep.priv_data = priv;
 		mlx5_eswitch_register_vport_rep(esw, 0, &rep);
 	}
+
+	if (netdev->reg_state != NETREG_REGISTERED)
+		return;
+
+	/* Device already registered: sync netdev system state */
+	if (mlx5e_vxlan_allowed(mdev)) {
+		rtnl_lock();
+		udp_tunnel_get_rx_info(netdev);
+		rtnl_unlock();
+	}
+
+	queue_work(priv->wq, &priv->set_rx_mode_work);
 }
 
 static void mlx5e_nic_disable(struct mlx5e_priv *priv)
@@ -3842,7 +3844,8 @@ struct net_device *mlx5e_create_netdev(s
 	return netdev;
 
 err_cleanup_nic:
-	profile->cleanup(priv);
+	if (profile->cleanup)
+		profile->cleanup(priv);
 	free_netdev(netdev);
 
 	return NULL;
@@ -3931,16 +3934,25 @@ static void mlx5e_register_vport_rep(str
 	}
 }
 
+static void mlx5e_unregister_vport_rep(struct mlx5_core_dev *mdev)
+{
+	struct mlx5_eswitch *esw = mdev->priv.eswitch;
+	int total_vfs = MLX5_TOTAL_VPORTS(mdev);
+	int vport;
+
+	if (!MLX5_CAP_GEN(mdev, vport_group_manager))
+		return;
+
+	for (vport = 1; vport < total_vfs; vport++)
+		mlx5_eswitch_unregister_vport_rep(esw, vport);
+}
+
 void mlx5e_detach_netdev(struct mlx5_core_dev *mdev, struct net_device *netdev)
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 	const struct mlx5e_profile *profile = priv->profile;
 
 	set_bit(MLX5E_STATE_DESTROYING, &priv->state);
-	if (profile->disable)
-		profile->disable(priv);
-
-	flush_workqueue(priv->wq);
 
 	rtnl_lock();
 	if (netif_running(netdev))
@@ -3948,6 +3960,10 @@ void mlx5e_detach_netdev(struct mlx5_cor
 	netif_device_detach(netdev);
 	rtnl_unlock();
 
+	if (profile->disable)
+		profile->disable(priv);
+	flush_workqueue(priv->wq);
+
 	mlx5e_destroy_q_counter(priv);
 	profile->cleanup_rx(priv);
 	mlx5e_close_drop_rq(priv);
@@ -3978,6 +3994,7 @@ static int mlx5e_attach(struct mlx5_core
 		return err;
 	}
 
+	mlx5e_register_vport_rep(mdev);
 	return 0;
 }
 
@@ -3989,6 +4006,7 @@ static void mlx5e_detach(struct mlx5_cor
 	if (!netif_device_present(netdev))
 		return;
 
+	mlx5e_unregister_vport_rep(mdev);
 	mlx5e_detach_netdev(mdev, netdev);
 	mlx5e_destroy_mdev_resources(mdev);
 }
@@ -4007,8 +4025,6 @@ static void *mlx5e_add(struct mlx5_core_
 	if (err)
 		return NULL;
 
-	mlx5e_register_vport_rep(mdev);
-
 	if (MLX5_CAP_GEN(mdev, vport_group_manager))
 		ppriv = &esw->offloads.vport_reps[0];
 
@@ -4060,13 +4076,7 @@ void mlx5e_destroy_netdev(struct mlx5_co
 
 static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
 {
-	struct mlx5_eswitch *esw = mdev->priv.eswitch;
-	int total_vfs = MLX5_TOTAL_VPORTS(mdev);
 	struct mlx5e_priv *priv = vpriv;
-	int vport;
-
-	for (vport = 1; vport < total_vfs; vport++)
-		mlx5_eswitch_unregister_vport_rep(esw, vport);
 
 	unregister_netdev(priv->netdev);
 	mlx5e_detach(mdev, vpriv);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c	2017-09-27 08:40:05.000000000 -0400
@@ -109,7 +109,6 @@ static bool mlx5e_am_on_top(struct mlx5e
 	switch (am->tune_state) {
 	case MLX5E_AM_PARKING_ON_TOP:
 	case MLX5E_AM_PARKING_TIRED:
-		WARN_ONCE(true, "mlx5e_am_on_top: PARKING\n");
 		return true;
 	case MLX5E_AM_GOING_RIGHT:
 		return (am->steps_left > 1) && (am->steps_right == 1);
@@ -123,7 +122,6 @@ static void mlx5e_am_turn(struct mlx5e_r
 	switch (am->tune_state) {
 	case MLX5E_AM_PARKING_ON_TOP:
 	case MLX5E_AM_PARKING_TIRED:
-		WARN_ONCE(true, "mlx5e_am_turn: PARKING\n");
 		break;
 	case MLX5E_AM_GOING_RIGHT:
 		am->tune_state = MLX5E_AM_GOING_LEFT;
@@ -144,7 +142,6 @@ static int mlx5e_am_step(struct mlx5e_rx
 	switch (am->tune_state) {
 	case MLX5E_AM_PARKING_ON_TOP:
 	case MLX5E_AM_PARKING_TIRED:
-		WARN_ONCE(true, "mlx5e_am_step: PARKING\n");
 		break;
 	case MLX5E_AM_GOING_RIGHT:
 		if (am->profile_ix == (MLX5E_PARAMS_AM_NUM_PROFILES - 1))
@@ -186,28 +183,27 @@ static void mlx5e_am_exit_parking(struct
 	mlx5e_am_step(am);
 }
 
+#define IS_SIGNIFICANT_DIFF(val, ref) \
+	(((100 * abs((val) - (ref))) / (ref)) > 10) /* more than 10% difference */
+
 static int mlx5e_am_stats_compare(struct mlx5e_rx_am_stats *curr,
 				  struct mlx5e_rx_am_stats *prev)
 {
-	int diff;
-
-	if (!prev->ppms)
-		return curr->ppms ? MLX5E_AM_STATS_BETTER :
+	if (!prev->bpms)
+		return curr->bpms ? MLX5E_AM_STATS_BETTER :
 				    MLX5E_AM_STATS_SAME;
 
-	diff = curr->ppms - prev->ppms;
-	if (((100 * abs(diff)) / prev->ppms) > 10) /* more than 10% diff */
-		return (diff > 0) ? MLX5E_AM_STATS_BETTER :
-				    MLX5E_AM_STATS_WORSE;
+	if (IS_SIGNIFICANT_DIFF(curr->bpms, prev->bpms))
+		return (curr->bpms > prev->bpms) ? MLX5E_AM_STATS_BETTER :
+						   MLX5E_AM_STATS_WORSE;
 
-	if (!prev->epms)
-		return curr->epms ? MLX5E_AM_STATS_WORSE :
-				    MLX5E_AM_STATS_SAME;
+	if (IS_SIGNIFICANT_DIFF(curr->ppms, prev->ppms))
+		return (curr->ppms > prev->ppms) ? MLX5E_AM_STATS_BETTER :
+						   MLX5E_AM_STATS_WORSE;
 
-	diff = curr->epms - prev->epms;
-	if (((100 * abs(diff)) / prev->epms) > 10) /* more than 10% diff */
-		return (diff < 0) ? MLX5E_AM_STATS_BETTER :
-				    MLX5E_AM_STATS_WORSE;
+	if (IS_SIGNIFICANT_DIFF(curr->epms, prev->epms))
+		return (curr->epms < prev->epms) ? MLX5E_AM_STATS_BETTER :
+						   MLX5E_AM_STATS_WORSE;
 
 	return MLX5E_AM_STATS_SAME;
 }
@@ -269,10 +265,13 @@ static void mlx5e_am_sample(struct mlx5e
 {
 	s->time	     = ktime_get();
 	s->pkt_ctr   = rq->stats.packets;
+	s->byte_ctr  = rq->stats.bytes;
 	s->event_ctr = rq->cq.event_ctr;
 }
 
 #define MLX5E_AM_NEVENTS 64
+#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
+#define BIT_GAP(bits, end, start) ((((end) - (start)) + BIT_ULL(bits)) & (BIT_ULL(bits) - 1))
 
 static void mlx5e_am_calc_stats(struct mlx5e_rx_am_sample *start,
 				struct mlx5e_rx_am_sample *end,
@@ -280,15 +279,17 @@ static void mlx5e_am_calc_stats(struct m
 {
 	/* u32 holds up to 71 minutes, should be enough */
 	u32 delta_us = ktime_us_delta(end->time, start->time);
-	unsigned int npkts = end->pkt_ctr - start->pkt_ctr;
+	u32 npkts = BIT_GAP(BITS_PER_TYPE(u32), end->pkt_ctr, start->pkt_ctr);
+	u32 nbytes = BIT_GAP(BITS_PER_TYPE(u32), end->byte_ctr,
+			     start->byte_ctr);
 
-	if (!delta_us) {
-		WARN_ONCE(true, "mlx5e_am_calc_stats: delta_us=0\n");
+	if (!delta_us)
 		return;
-	}
 
-	curr_stats->ppms =            (npkts * USEC_PER_MSEC) / delta_us;
-	curr_stats->epms = (MLX5E_AM_NEVENTS * USEC_PER_MSEC) / delta_us;
+	curr_stats->ppms = DIV_ROUND_UP(npkts * USEC_PER_MSEC, delta_us);
+	curr_stats->bpms = DIV_ROUND_UP(nbytes * USEC_PER_MSEC, delta_us);
+	curr_stats->epms = DIV_ROUND_UP(MLX5E_AM_NEVENTS * USEC_PER_MSEC,
+					delta_us);
 }
 
 void mlx5e_rx_am_work(struct work_struct *work)
@@ -313,7 +314,8 @@ void mlx5e_rx_am(struct mlx5e_rq *rq)
 
 	switch (am->state) {
 	case MLX5E_AM_MEASURE_IN_PROGRESS:
-		nevents = rq->cq.event_ctr - am->start_sample.event_ctr;
+		nevents = BIT_GAP(BITS_PER_TYPE(u16), rq->cq.event_ctr,
+				  am->start_sample.event_ctr);
 		if (nevents < MLX5E_AM_NEVENTS)
 			break;
 		mlx5e_am_sample(rq, &end_sample);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c	2017-09-27 08:40:05.000000000 -0400
@@ -92,19 +92,18 @@ static inline void mlx5e_cqes_update_own
 static inline void mlx5e_decompress_cqe(struct mlx5e_rq *rq,
 					struct mlx5e_cq *cq, u32 cqcc)
 {
-	u16 wqe_cnt_step;
-
 	cq->title.byte_cnt     = cq->mini_arr[cq->mini_arr_idx].byte_cnt;
 	cq->title.check_sum    = cq->mini_arr[cq->mini_arr_idx].checksum;
 	cq->title.op_own      &= 0xf0;
 	cq->title.op_own      |= 0x01 & (cqcc >> cq->wq.log_sz);
 	cq->title.wqe_counter  = cpu_to_be16(cq->decmprs_wqe_counter);
 
-	wqe_cnt_step =
-		rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ ?
-		mpwrq_get_cqe_consumed_strides(&cq->title) : 1;
-	cq->decmprs_wqe_counter =
-		(cq->decmprs_wqe_counter + wqe_cnt_step) & rq->wq.sz_m1;
+	if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ)
+		cq->decmprs_wqe_counter +=
+			mpwrq_get_cqe_consumed_strides(&cq->title);
+	else
+		cq->decmprs_wqe_counter =
+			(cq->decmprs_wqe_counter + 1) & rq->wq.sz_m1;
 }
 
 static inline void mlx5e_decompress_cqe_no_hash(struct mlx5e_rq *rq,
@@ -193,6 +192,9 @@ static inline bool mlx5e_rx_cache_put(st
 		return false;
 	}
 
+	if (unlikely(page_is_pfmemalloc(dma_info->page)))
+		return false;
+
 	cache->page_cache[cache->tail] = *dma_info;
 	cache->tail = tail_next;
 	return true;
@@ -600,6 +602,10 @@ static inline void mlx5e_build_rx_skb(st
 	if (lro_num_seg > 1) {
 		mlx5e_lro_update_hdr(skb, cqe, cqe_bcnt);
 		skb_shinfo(skb)->gso_size = DIV_ROUND_UP(cqe_bcnt, lro_num_seg);
+		/* Subtract one since we already counted this as one
+		 * "regular" packet in mlx5e_complete_rx_cqe()
+		 */
+		rq->stats.packets += lro_num_seg - 1;
 		rq->stats.lro_packets++;
 		rq->stats.lro_bytes += cqe_bcnt;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c	2017-09-27 08:40:05.000000000 -0400
@@ -427,14 +427,16 @@ static int parse_tc_fdb_actions(struct m
 		}
 
 		if (is_tcf_vlan(a)) {
-			if (tcf_vlan_action(a) == VLAN_F_POP) {
+			if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) {
 				attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
-			} else if (tcf_vlan_action(a) == VLAN_F_PUSH) {
+			} else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) {
 				if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q))
 					return -EOPNOTSUPP;
 
 				attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
 				attr->vlan = tcf_vlan_push_vid(a);
+			} else { /* action is TCA_VLAN_ACT_MODIFY */
+				return -EOPNOTSUPP;
 			}
 			continue;
 		}
@@ -567,10 +569,14 @@ int mlx5e_stats_flower(struct mlx5e_priv
 
 	mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse);
 
+	preempt_disable();
+
 	tcf_exts_to_list(f->exts, &actions);
 	list_for_each_entry(a, &actions, list)
 		tcf_action_stats_update(a, bytes, packets, lastuse);
 
+	preempt_enable();
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c	2017-09-27 08:40:05.000000000 -0400
@@ -272,15 +272,18 @@ static netdev_tx_t mlx5e_sq_xmit(struct
 			sq->stats.tso_bytes += skb->len - ihs;
 		}
 
+		sq->stats.packets += skb_shinfo(skb)->gso_segs;
 		num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs;
 	} else {
 		bf = sq->bf_budget &&
 		     !skb->xmit_more &&
 		     !skb_shinfo(skb)->nr_frags;
 		ihs = mlx5e_get_inline_hdr_size(sq, skb, bf);
+		sq->stats.packets++;
 		num_bytes = max_t(unsigned int, skb->len, ETH_ZLEN);
 	}
 
+	sq->stats.bytes += num_bytes;
 	wi->num_bytes = num_bytes;
 
 	if (skb_vlan_tag_present(skb)) {
@@ -377,8 +380,6 @@ static netdev_tx_t mlx5e_sq_xmit(struct
 	if (bf)
 		sq->bf_budget--;
 
-	sq->stats.packets++;
-	sq->stats.bytes += num_bytes;
 	return NETDEV_TX_OK;
 
 dma_unmap_wqe_err:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/eq.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/eq.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/eq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/eq.c	2017-09-27 08:40:05.000000000 -0400
@@ -234,7 +234,7 @@ static int mlx5_eq_int(struct mlx5_core_
 			break;
 
 		case MLX5_EVENT_TYPE_CMD:
-			mlx5_cmd_comp_handler(dev, be32_to_cpu(eqe->data.cmd.vector));
+			mlx5_cmd_comp_handler(dev, be32_to_cpu(eqe->data.cmd.vector), false);
 			break;
 
 		case MLX5_EVENT_TYPE_PORT_CHANGE:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c	2017-09-27 08:40:05.000000000 -0400
@@ -352,7 +352,7 @@ static int esw_create_legacy_fdb_table(s
 	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
 	if (!root_ns) {
 		esw_warn(dev, "Failed to get FDB flow namespace\n");
-		return -ENOMEM;
+		return -EOPNOTSUPP;
 	}
 
 	flow_group_in = mlx5_vzalloc(inlen);
@@ -961,7 +961,7 @@ static int esw_vport_enable_egress_acl(s
 	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_EGRESS);
 	if (!root_ns) {
 		esw_warn(dev, "Failed to get E-Switch egress flow namespace\n");
-		return -EIO;
+		return -EOPNOTSUPP;
 	}
 
 	flow_group_in = mlx5_vzalloc(inlen);
@@ -1078,7 +1078,7 @@ static int esw_vport_enable_ingress_acl(
 	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_INGRESS);
 	if (!root_ns) {
 		esw_warn(dev, "Failed to get E-Switch ingress flow namespace\n");
-		return -EIO;
+		return -EOPNOTSUPP;
 	}
 
 	flow_group_in = mlx5_vzalloc(inlen);
@@ -1703,7 +1703,7 @@ int mlx5_eswitch_set_vport_mac(struct ml
 
 	if (!ESW_ALLOWED(esw))
 		return -EPERM;
-	if (!LEGAL_VPORT(esw, vport))
+	if (!LEGAL_VPORT(esw, vport) || is_multicast_ether_addr(mac))
 		return -EINVAL;
 
 	mutex_lock(&esw->state_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c	2017-09-27 08:40:05.000000000 -0400
@@ -414,6 +414,7 @@ static int esw_create_offloads_fdb_table
 	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
 	if (!root_ns) {
 		esw_warn(dev, "Failed to get FDB flow namespace\n");
+		err = -EOPNOTSUPP;
 		goto ns_err;
 	}
 
@@ -520,7 +521,7 @@ static int esw_create_offloads_table(str
 	ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_OFFLOADS);
 	if (!ns) {
 		esw_warn(esw->dev, "Failed to get offloads flow namespace\n");
-		return -ENOMEM;
+		return -EOPNOTSUPP;
 	}
 
 	ft_offloads = mlx5_create_flow_table(ns, 0, dev->priv.sriov.num_vfs + 2, 0);
@@ -639,7 +640,7 @@ static int esw_offloads_start(struct mlx
 		esw_warn(esw->dev, "Failed setting eswitch to offloads, err %d\n", err);
 		err1 = mlx5_eswitch_enable_sriov(esw, num_vfs, SRIOV_LEGACY);
 		if (err1)
-			esw_warn(esw->dev, "Failed setting eswitch back to legacy, err %d\n", err);
+			esw_warn(esw->dev, "Failed setting eswitch back to legacy, err %d\n", err1);
 	}
 	return err;
 }
@@ -650,9 +651,14 @@ int esw_offloads_init(struct mlx5_eswitc
 	int vport;
 	int err;
 
+	/* disable PF RoCE so missed packets don't go through RoCE steering */
+	mlx5_dev_list_lock();
+	mlx5_remove_dev_by_protocol(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
+	mlx5_dev_list_unlock();
+
 	err = esw_create_offloads_fdb_table(esw, nvports);
 	if (err)
-		return err;
+		goto create_fdb_err;
 
 	err = esw_create_offloads_table(esw);
 	if (err)
@@ -671,6 +677,7 @@ int esw_offloads_init(struct mlx5_eswitc
 		if (err)
 			goto err_reps;
 	}
+
 	return 0;
 
 err_reps:
@@ -687,6 +694,13 @@ create_fg_err:
 
 create_ft_err:
 	esw_destroy_offloads_fdb_table(esw);
+
+create_fdb_err:
+	/* enable back PF RoCE */
+	mlx5_dev_list_lock();
+	mlx5_add_dev_by_protocol(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
+	mlx5_dev_list_unlock();
+
 	return err;
 }
 
@@ -703,6 +717,11 @@ static int esw_offloads_stop(struct mlx5
 			esw_warn(esw->dev, "Failed setting eswitch back to offloads, err %d\n", err);
 	}
 
+	/* enable back PF RoCE */
+	mlx5_dev_list_lock();
+	mlx5_add_dev_by_protocol(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
+	mlx5_dev_list_unlock();
+
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1110,9 +1110,8 @@ static struct mlx5_flow_rule *add_rule_f
 				return rule;
 			}
 			rule = add_rule_fte(fte, fg, dest);
-			unlock_ref_node(&fte->node);
 			if (IS_ERR(rule))
-				goto unlock_fg;
+				goto unlock_fte;
 			else
 				goto add_rule;
 		}
@@ -1130,6 +1129,7 @@ static struct mlx5_flow_rule *add_rule_f
 		goto unlock_fg;
 	}
 	tree_init_node(&fte->node, 0, del_fte);
+	nested_lock_ref_node(&fte->node, FS_MUTEX_CHILD);
 	rule = add_rule_fte(fte, fg, dest);
 	if (IS_ERR(rule)) {
 		kfree(fte);
@@ -1142,6 +1142,8 @@ static struct mlx5_flow_rule *add_rule_f
 	list_add(&fte->node.list, prev);
 add_rule:
 	tree_add_node(&rule->node, &fte->node);
+unlock_fte:
+	unlock_ref_node(&fte->node);
 unlock_fg:
 	unlock_ref_node(&fg->node);
 	return rule;
@@ -1676,7 +1678,7 @@ static int create_anchor_flow_table(stru
 	struct mlx5_flow_table *ft;
 
 	ns = mlx5_get_flow_namespace(steering->dev, MLX5_FLOW_NAMESPACE_ANCHOR);
-	if (!ns)
+	if (WARN_ON(!ns))
 		return -EINVAL;
 	ft = mlx5_create_flow_table(ns, ANCHOR_PRIO, ANCHOR_SIZE, ANCHOR_LEVEL);
 	if (IS_ERR(ft)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/health.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/health.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/health.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/health.c	2017-09-27 08:40:05.000000000 -0400
@@ -67,6 +67,7 @@ enum {
 
 enum {
 	MLX5_DROP_NEW_HEALTH_WORK,
+	MLX5_DROP_NEW_RECOVERY_WORK,
 };
 
 static u8 get_nic_state(struct mlx5_core_dev *dev)
@@ -90,7 +91,7 @@ static void trigger_cmd_completions(stru
 	spin_unlock_irqrestore(&dev->cmd.alloc_lock, flags);
 
 	mlx5_core_dbg(dev, "vector 0x%llx\n", vector);
-	mlx5_cmd_comp_handler(dev, vector);
+	mlx5_cmd_comp_handler(dev, vector, true);
 	return;
 
 no_trig:
@@ -193,7 +194,7 @@ static void health_care(struct work_stru
 	mlx5_handle_bad_state(dev);
 
 	spin_lock(&health->wq_lock);
-	if (!test_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags))
+	if (!test_bit(MLX5_DROP_NEW_RECOVERY_WORK, &health->flags))
 		schedule_delayed_work(&health->recover_work, recover_delay);
 	else
 		dev_err(&dev->pdev->dev,
@@ -328,6 +329,7 @@ void mlx5_start_health_poll(struct mlx5_
 	init_timer(&health->timer);
 	health->sick = 0;
 	clear_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags);
+	clear_bit(MLX5_DROP_NEW_RECOVERY_WORK, &health->flags);
 	health->health = &dev->iseg->health;
 	health->health_counter = &dev->iseg->health_counter;
 
@@ -350,11 +352,22 @@ void mlx5_drain_health_wq(struct mlx5_co
 
 	spin_lock(&health->wq_lock);
 	set_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags);
+	set_bit(MLX5_DROP_NEW_RECOVERY_WORK, &health->flags);
 	spin_unlock(&health->wq_lock);
 	cancel_delayed_work_sync(&health->recover_work);
 	cancel_work_sync(&health->work);
 }
 
+void mlx5_drain_health_recovery(struct mlx5_core_dev *dev)
+{
+	struct mlx5_core_health *health = &dev->priv.health;
+
+	spin_lock(&health->wq_lock);
+	set_bit(MLX5_DROP_NEW_RECOVERY_WORK, &health->flags);
+	spin_unlock(&health->wq_lock);
+	cancel_delayed_work_sync(&dev->priv.health.recover_work);
+}
+
 void mlx5_health_cleanup(struct mlx5_core_dev *dev)
 {
 	struct mlx5_core_health *health = &dev->priv.health;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/lag.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/lag.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/lag.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/lag.c	2017-09-27 08:40:05.000000000 -0400
@@ -157,22 +157,17 @@ static bool mlx5_lag_is_bonded(struct ml
 static void mlx5_infer_tx_affinity_mapping(struct lag_tracker *tracker,
 					   u8 *port1, u8 *port2)
 {
-	if (tracker->tx_type == NETDEV_LAG_TX_TYPE_ACTIVEBACKUP) {
-		if (tracker->netdev_state[0].tx_enabled) {
-			*port1 = 1;
-			*port2 = 1;
-		} else {
-			*port1 = 2;
-			*port2 = 2;
-		}
-	} else {
-		*port1 = 1;
-		*port2 = 2;
-		if (!tracker->netdev_state[0].link_up)
-			*port1 = 2;
-		else if (!tracker->netdev_state[1].link_up)
-			*port2 = 1;
+	*port1 = 1;
+	*port2 = 2;
+	if (!tracker->netdev_state[0].tx_enabled ||
+	    !tracker->netdev_state[0].link_up) {
+		*port1 = 2;
+		return;
 	}
+
+	if (!tracker->netdev_state[1].tx_enabled ||
+	    !tracker->netdev_state[1].link_up)
+		*port2 = 1;
 }
 
 static void mlx5_activate_lag(struct mlx5_lag *ldev,
@@ -294,7 +289,7 @@ static int mlx5_handle_changeupper_event
 					 struct netdev_notifier_changeupper_info *info)
 {
 	struct net_device *upper = info->upper_dev, *ndev_tmp;
-	struct netdev_lag_upper_info *lag_upper_info;
+	struct netdev_lag_upper_info *lag_upper_info = NULL;
 	bool is_bonded;
 	int bond_status = 0;
 	int num_slaves = 0;
@@ -303,7 +298,8 @@ static int mlx5_handle_changeupper_event
 	if (!netif_is_lag_master(upper))
 		return 0;
 
-	lag_upper_info = info->upper_info;
+	if (info->linking)
+		lag_upper_info = info->upper_info;
 
 	/* The event may still be of interest if the slave does not belong to
 	 * us, but is enslaved to a master which has one or more of our netdevs
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlx5/core/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -87,7 +87,7 @@ static struct mlx5_profile profile[] = {
 	[2] = {
 		.mask		= MLX5_PROF_MASK_QP_SIZE |
 				  MLX5_PROF_MASK_MR_CACHE,
-		.log_max_qp	= 17,
+		.log_max_qp	= 18,
 		.mr_cache[0]	= {
 			.size	= 500,
 			.limit	= 250
@@ -155,8 +155,9 @@ static struct mlx5_profile profile[] = {
 	},
 };
 
-#define FW_INIT_TIMEOUT_MILI	2000
-#define FW_INIT_WAIT_MS		2
+#define FW_INIT_TIMEOUT_MILI		2000
+#define FW_INIT_WAIT_MS			2
+#define FW_PRE_INIT_TIMEOUT_MILI	10000
 
 static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili)
 {
@@ -468,6 +469,13 @@ static int handle_hca_cap(struct mlx5_co
 	MLX5_SET(cmd_hca_cap, set_hca_cap, pkey_table_size,
 		 to_fw_pkey_sz(dev, 128));
 
+	/* Check log_max_qp from HCA caps to set in current profile */
+	if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < profile[prof_sel].log_max_qp) {
+		mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
+			       profile[prof_sel].log_max_qp,
+			       MLX5_CAP_GEN_MAX(dev, log_max_qp));
+		profile[prof_sel].log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
+	}
 	if (prof->mask & MLX5_PROF_MASK_QP_SIZE)
 		MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_qp,
 			 prof->log_max_qp);
@@ -540,7 +548,6 @@ static int mlx5_irq_set_affinity_hint(st
 	struct mlx5_priv *priv  = &mdev->priv;
 	struct msix_entry *msix = priv->msix_arr;
 	int irq                 = msix[i + MLX5_EQ_VEC_COMP_BASE].vector;
-	int numa_node           = priv->numa_node;
 	int err;
 
 	if (!zalloc_cpumask_var(&priv->irq_info[i].mask, GFP_KERNEL)) {
@@ -548,7 +555,7 @@ static int mlx5_irq_set_affinity_hint(st
 		return -ENOMEM;
 	}
 
-	cpumask_set_cpu(cpumask_local_spread(i, numa_node),
+	cpumask_set_cpu(cpumask_local_spread(i, priv->numa_node),
 			priv->irq_info[i].mask);
 
 	err = irq_set_affinity_hint(irq, priv->irq_info[i].mask);
@@ -950,6 +957,15 @@ static int mlx5_load_one(struct mlx5_cor
 	 */
 	dev->state = MLX5_DEVICE_STATE_UP;
 
+	/* wait for firmware to accept initialization segments configurations
+	 */
+	err = wait_fw_init(dev, FW_PRE_INIT_TIMEOUT_MILI);
+	if (err) {
+		dev_err(&dev->pdev->dev, "Firmware over %d MS in pre-initializing state, aborting\n",
+			FW_PRE_INIT_TIMEOUT_MILI);
+		goto out;
+	}
+
 	err = mlx5_cmd_init(dev);
 	if (err) {
 		dev_err(&pdev->dev, "Failed initializing command interface, aborting\n");
@@ -960,7 +976,7 @@ static int mlx5_load_one(struct mlx5_cor
 	if (err) {
 		dev_err(&dev->pdev->dev, "Firmware over %d MS in initializing state, aborting\n",
 			FW_INIT_TIMEOUT_MILI);
-		goto out_err;
+		goto err_cmd_cleanup;
 	}
 
 	err = mlx5_core_enable_hca(dev, 0);
@@ -1152,6 +1168,9 @@ static int mlx5_unload_one(struct mlx5_c
 {
 	int err = 0;
 
+	if (cleanup)
+		mlx5_drain_health_recovery(dev);
+
 	mutex_lock(&dev->intf_state_mutex);
 	if (test_bit(MLX5_INTERFACE_STATE_DOWN, &dev->intf_state)) {
 		dev_warn(&dev->pdev->dev, "%s: interface is down, NOP\n",
@@ -1312,7 +1331,7 @@ static pci_ers_result_t mlx5_pci_err_det
 
 	mlx5_enter_error_state(dev);
 	mlx5_unload_one(dev, priv, false);
-	/* In case of kernel call save the pci state and drain health wq */
+	/* In case of kernel call save the pci state and drain the health wq */
 	if (state) {
 		pci_save_state(pdev);
 		mlx5_drain_health_wq(dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/pci.h	2017-09-27 08:40:05.000000000 -0400
@@ -211,21 +211,21 @@ MLXSW_ITEM32(pci, eqe, owner, 0x0C, 0, 1
 /* pci_eqe_cmd_token
  * Command completion event - token
  */
-MLXSW_ITEM32(pci, eqe, cmd_token, 0x08, 16, 16);
+MLXSW_ITEM32(pci, eqe, cmd_token, 0x00, 16, 16);
 
 /* pci_eqe_cmd_status
  * Command completion event - status
  */
-MLXSW_ITEM32(pci, eqe, cmd_status, 0x08, 0, 8);
+MLXSW_ITEM32(pci, eqe, cmd_status, 0x00, 0, 8);
 
 /* pci_eqe_cmd_out_param_h
  * Command completion event - output parameter - higher part
  */
-MLXSW_ITEM32(pci, eqe, cmd_out_param_h, 0x0C, 0, 32);
+MLXSW_ITEM32(pci, eqe, cmd_out_param_h, 0x04, 0, 32);
 
 /* pci_eqe_cmd_out_param_l
  * Command completion event - output parameter - lower part
  */
-MLXSW_ITEM32(pci, eqe, cmd_out_param_l, 0x10, 0, 32);
+MLXSW_ITEM32(pci, eqe, cmd_out_param_l, 0x08, 0, 32);
 
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum.c	2017-09-27 08:40:05.000000000 -0400
@@ -684,6 +684,7 @@ static netdev_tx_t mlxsw_sp_port_xmit(st
 			dev_kfree_skb_any(skb_orig);
 			return NETDEV_TX_OK;
 		}
+		dev_consume_skb_any(skb_orig);
 	}
 
 	if (eth_skb_pad(skb)) {
@@ -4171,6 +4172,8 @@ static int mlxsw_sp_netdevice_port_upper
 			return -EINVAL;
 		if (!info->linking)
 			break;
+		if (netdev_has_any_upper_dev(upper_dev))
+			return -EINVAL;
 		/* HW limitation forbids to put ports to multiple bridges. */
 		if (netif_is_bridge_master(upper_dev) &&
 		    !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev))
@@ -4184,6 +4187,10 @@ static int mlxsw_sp_netdevice_port_upper
 		if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
 		    !netif_is_lag_master(vlan_dev_real_dev(upper_dev)))
 			return -EINVAL;
+		if (!info->linking)
+			break;
+		if (netdev_has_any_upper_dev(upper_dev))
+			return -EINVAL;
 		break;
 	case NETDEV_CHANGEUPPER:
 		upper_dev = info->upper_dev;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c	2017-09-27 08:40:05.000000000 -0400
@@ -500,30 +500,40 @@ static int
 mlxsw_sp_vr_lpm_tree_check(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_vr *vr,
 			   struct mlxsw_sp_prefix_usage *req_prefix_usage)
 {
-	struct mlxsw_sp_lpm_tree *lpm_tree;
+	struct mlxsw_sp_lpm_tree *lpm_tree = vr->lpm_tree;
+	struct mlxsw_sp_lpm_tree *new_tree;
+	int err;
 
-	if (mlxsw_sp_prefix_usage_eq(req_prefix_usage,
-				     &vr->lpm_tree->prefix_usage))
+	if (mlxsw_sp_prefix_usage_eq(req_prefix_usage, &lpm_tree->prefix_usage))
 		return 0;
 
-	lpm_tree = mlxsw_sp_lpm_tree_get(mlxsw_sp, req_prefix_usage,
+	new_tree = mlxsw_sp_lpm_tree_get(mlxsw_sp, req_prefix_usage,
 					 vr->proto, false);
-	if (IS_ERR(lpm_tree)) {
+	if (IS_ERR(new_tree)) {
 		/* We failed to get a tree according to the required
 		 * prefix usage. However, the current tree might be still good
 		 * for us if our requirement is subset of the prefixes used
 		 * in the tree.
 		 */
 		if (mlxsw_sp_prefix_usage_subset(req_prefix_usage,
-						 &vr->lpm_tree->prefix_usage))
+						 &lpm_tree->prefix_usage))
 			return 0;
-		return PTR_ERR(lpm_tree);
+		return PTR_ERR(new_tree);
 	}
 
-	mlxsw_sp_vr_lpm_tree_unbind(mlxsw_sp, vr);
-	mlxsw_sp_lpm_tree_put(mlxsw_sp, vr->lpm_tree);
+	/* Prevent packet loss by overwriting existing binding */
+	vr->lpm_tree = new_tree;
+	err = mlxsw_sp_vr_lpm_tree_bind(mlxsw_sp, vr);
+	if (err)
+		goto err_tree_bind;
+	mlxsw_sp_lpm_tree_put(mlxsw_sp, lpm_tree);
+
+	return 0;
+
+err_tree_bind:
 	vr->lpm_tree = lpm_tree;
-	return mlxsw_sp_vr_lpm_tree_bind(mlxsw_sp, vr);
+	mlxsw_sp_lpm_tree_put(mlxsw_sp, new_tree);
+	return err;
 }
 
 static struct mlxsw_sp_vr *mlxsw_sp_vr_get(struct mlxsw_sp *mlxsw_sp,
@@ -1168,7 +1178,8 @@ static int mlxsw_sp_nexthop_mac_update(s
 
 static int
 mlxsw_sp_nexthop_group_mac_update(struct mlxsw_sp *mlxsw_sp,
-				  struct mlxsw_sp_nexthop_group *nh_grp)
+				  struct mlxsw_sp_nexthop_group *nh_grp,
+				  bool reallocate)
 {
 	u32 adj_index = nh_grp->adj_index; /* base */
 	struct mlxsw_sp_nexthop *nh;
@@ -1183,7 +1194,7 @@ mlxsw_sp_nexthop_group_mac_update(struct
 			continue;
 		}
 
-		if (nh->update) {
+		if (nh->update || reallocate) {
 			err = mlxsw_sp_nexthop_mac_update(mlxsw_sp,
 							  adj_index, nh);
 			if (err)
@@ -1244,7 +1255,8 @@ mlxsw_sp_nexthop_group_refresh(struct ml
 		/* Nothing was added or removed, so no need to reallocate. Just
 		 * update MAC on existing adjacency indexes.
 		 */
-		err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp);
+		err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp,
+							false);
 		if (err) {
 			dev_warn(mlxsw_sp->bus_info->dev, "Failed to update neigh MAC in adjacency table.\n");
 			goto set_trap;
@@ -1272,7 +1284,7 @@ mlxsw_sp_nexthop_group_refresh(struct ml
 	nh_grp->adj_index_valid = 1;
 	nh_grp->adj_index = adj_index;
 	nh_grp->ecmp_size = ecmp_size;
-	err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp);
+	err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp, true);
 	if (err) {
 		dev_warn(mlxsw_sp->bus_info->dev, "Failed to update neigh MAC in adjacency table.\n");
 		goto set_trap;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/mellanox/mlxsw/switchx2.c	2017-09-27 08:40:05.000000000 -0400
@@ -314,6 +314,7 @@ static netdev_tx_t mlxsw_sx_port_xmit(st
 			dev_kfree_skb_any(skb_orig);
 			return NETDEV_TX_OK;
 		}
+		dev_consume_skb_any(skb_orig);
 	}
 	mlxsw_sx_txhdr_construct(skb, &tx_info);
 	/* TX header is consumed by HW on the way so we shouldn't count its
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/netronome/nfp/nfp_net_common.c linux-libre-4.9.52-gnu/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/netronome/nfp/nfp_net_common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/netronome/nfp/nfp_net_common.c	2017-09-27 08:40:05.000000000 -0400
@@ -871,8 +871,7 @@ static int nfp_net_tx(struct sk_buff *sk
 	return NETDEV_TX_OK;
 
 err_unmap:
-	--f;
-	while (f >= 0) {
+	while (--f >= 0) {
 		frag = &skb_shinfo(skb)->frags[f];
 		dma_unmap_page(&nn->pdev->dev,
 			       tx_ring->txbufs[wr_idx].dma_addr,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c linux-libre-4.9.52-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c	2017-09-27 08:40:05.000000000 -0400
@@ -724,7 +724,7 @@ static void ql_build_coredump_seg_header
 	seg_hdr->cookie = MPI_COREDUMP_COOKIE;
 	seg_hdr->segNum = seg_number;
 	seg_hdr->segSize = seg_size;
-	memcpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1);
+	strncpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/realtek/r8169.c linux-libre-4.9.52-gnu/drivers/net/ethernet/realtek/r8169.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/realtek/r8169.c	2016-12-11 17:50:21.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/realtek/r8169.c	2017-09-27 14:55:55.000000000 -0400
@@ -326,6 +326,7 @@ enum cfg_version {
 static const struct pci_device_id rtl8169_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8129), 0, 0, RTL_CFG_0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8136), 0, 0, RTL_CFG_2 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8161), 0, 0, RTL_CFG_1 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8167), 0, 0, RTL_CFG_0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8168), 0, 0, RTL_CFG_1 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8169), 0, 0, RTL_CFG_0 },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/renesas/ravb_main.c linux-libre-4.9.52-gnu/drivers/net/ethernet/renesas/ravb_main.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/renesas/ravb_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/renesas/ravb_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -179,34 +179,67 @@ static struct mdiobb_ops bb_ops = {
 	.get_mdio_data = ravb_get_mdio_data,
 };
 
-/* Free skb's and DMA buffers for Ethernet AVB */
-static void ravb_ring_free(struct net_device *ndev, int q)
+/* Free TX skb function for AVB-IP */
+static int ravb_tx_free(struct net_device *ndev, int q, bool free_txed_only)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
-	int ring_size;
-	int i;
+	struct net_device_stats *stats = &priv->stats[q];
+	struct ravb_tx_desc *desc;
+	int free_num = 0;
+	int entry;
+	u32 size;
 
-	/* Free RX skb ringbuffer */
-	if (priv->rx_skb[q]) {
-		for (i = 0; i < priv->num_rx_ring[q]; i++)
-			dev_kfree_skb(priv->rx_skb[q][i]);
-	}
-	kfree(priv->rx_skb[q]);
-	priv->rx_skb[q] = NULL;
+	for (; priv->cur_tx[q] - priv->dirty_tx[q] > 0; priv->dirty_tx[q]++) {
+		bool txed;
 
-	/* Free TX skb ringbuffer */
-	if (priv->tx_skb[q]) {
-		for (i = 0; i < priv->num_tx_ring[q]; i++)
-			dev_kfree_skb(priv->tx_skb[q][i]);
+		entry = priv->dirty_tx[q] % (priv->num_tx_ring[q] *
+					     NUM_TX_DESC);
+		desc = &priv->tx_ring[q][entry];
+		txed = desc->die_dt == DT_FEMPTY;
+		if (free_txed_only && !txed)
+			break;
+		/* Descriptor type must be checked before all other reads */
+		dma_rmb();
+		size = le16_to_cpu(desc->ds_tagl) & TX_DS;
+		/* Free the original skb. */
+		if (priv->tx_skb[q][entry / NUM_TX_DESC]) {
+			dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
+					 size, DMA_TO_DEVICE);
+			/* Last packet descriptor? */
+			if (entry % NUM_TX_DESC == NUM_TX_DESC - 1) {
+				entry /= NUM_TX_DESC;
+				dev_kfree_skb_any(priv->tx_skb[q][entry]);
+				priv->tx_skb[q][entry] = NULL;
+				if (txed)
+					stats->tx_packets++;
+			}
+			free_num++;
+		}
+		if (txed)
+			stats->tx_bytes += size;
+		desc->die_dt = DT_EEMPTY;
 	}
-	kfree(priv->tx_skb[q]);
-	priv->tx_skb[q] = NULL;
+	return free_num;
+}
 
-	/* Free aligned TX buffers */
-	kfree(priv->tx_align[q]);
-	priv->tx_align[q] = NULL;
+/* Free skb's and DMA buffers for Ethernet AVB */
+static void ravb_ring_free(struct net_device *ndev, int q)
+{
+	struct ravb_private *priv = netdev_priv(ndev);
+	int ring_size;
+	int i;
 
 	if (priv->rx_ring[q]) {
+		for (i = 0; i < priv->num_rx_ring[q]; i++) {
+			struct ravb_ex_rx_desc *desc = &priv->rx_ring[q][i];
+
+			if (!dma_mapping_error(ndev->dev.parent,
+					       le32_to_cpu(desc->dptr)))
+				dma_unmap_single(ndev->dev.parent,
+						 le32_to_cpu(desc->dptr),
+						 PKT_BUF_SZ,
+						 DMA_FROM_DEVICE);
+		}
 		ring_size = sizeof(struct ravb_ex_rx_desc) *
 			    (priv->num_rx_ring[q] + 1);
 		dma_free_coherent(ndev->dev.parent, ring_size, priv->rx_ring[q],
@@ -215,12 +248,32 @@ static void ravb_ring_free(struct net_de
 	}
 
 	if (priv->tx_ring[q]) {
+		ravb_tx_free(ndev, q, false);
+
 		ring_size = sizeof(struct ravb_tx_desc) *
 			    (priv->num_tx_ring[q] * NUM_TX_DESC + 1);
 		dma_free_coherent(ndev->dev.parent, ring_size, priv->tx_ring[q],
 				  priv->tx_desc_dma[q]);
 		priv->tx_ring[q] = NULL;
 	}
+
+	/* Free RX skb ringbuffer */
+	if (priv->rx_skb[q]) {
+		for (i = 0; i < priv->num_rx_ring[q]; i++)
+			dev_kfree_skb(priv->rx_skb[q][i]);
+	}
+	kfree(priv->rx_skb[q]);
+	priv->rx_skb[q] = NULL;
+
+	/* Free aligned TX buffers */
+	kfree(priv->tx_align[q]);
+	priv->tx_align[q] = NULL;
+
+	/* Free TX skb ringbuffer.
+	 * SKBs are freed by ravb_tx_free() call above.
+	 */
+	kfree(priv->tx_skb[q]);
+	priv->tx_skb[q] = NULL;
 }
 
 /* Format skb and descriptor buffer for Ethernet AVB */
@@ -431,44 +484,6 @@ static int ravb_dmac_init(struct net_dev
 	return 0;
 }
 
-/* Free TX skb function for AVB-IP */
-static int ravb_tx_free(struct net_device *ndev, int q)
-{
-	struct ravb_private *priv = netdev_priv(ndev);
-	struct net_device_stats *stats = &priv->stats[q];
-	struct ravb_tx_desc *desc;
-	int free_num = 0;
-	int entry;
-	u32 size;
-
-	for (; priv->cur_tx[q] - priv->dirty_tx[q] > 0; priv->dirty_tx[q]++) {
-		entry = priv->dirty_tx[q] % (priv->num_tx_ring[q] *
-					     NUM_TX_DESC);
-		desc = &priv->tx_ring[q][entry];
-		if (desc->die_dt != DT_FEMPTY)
-			break;
-		/* Descriptor type must be checked before all other reads */
-		dma_rmb();
-		size = le16_to_cpu(desc->ds_tagl) & TX_DS;
-		/* Free the original skb. */
-		if (priv->tx_skb[q][entry / NUM_TX_DESC]) {
-			dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
-					 size, DMA_TO_DEVICE);
-			/* Last packet descriptor? */
-			if (entry % NUM_TX_DESC == NUM_TX_DESC - 1) {
-				entry /= NUM_TX_DESC;
-				dev_kfree_skb_any(priv->tx_skb[q][entry]);
-				priv->tx_skb[q][entry] = NULL;
-				stats->tx_packets++;
-			}
-			free_num++;
-		}
-		stats->tx_bytes += size;
-		desc->die_dt = DT_EEMPTY;
-	}
-	return free_num;
-}
-
 static void ravb_get_tx_tstamp(struct net_device *ndev)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
@@ -902,7 +917,7 @@ static int ravb_poll(struct napi_struct
 			spin_lock_irqsave(&priv->lock, flags);
 			/* Clear TX interrupt */
 			ravb_write(ndev, ~mask, TIS);
-			ravb_tx_free(ndev, q);
+			ravb_tx_free(ndev, q, true);
 			netif_wake_subqueue(ndev, q);
 			mmiowb();
 			spin_unlock_irqrestore(&priv->lock, flags);
@@ -1508,6 +1523,19 @@ static netdev_tx_t ravb_start_xmit(struc
 	buffer = PTR_ALIGN(priv->tx_align[q], DPTR_ALIGN) +
 		 entry / NUM_TX_DESC * DPTR_ALIGN;
 	len = PTR_ALIGN(skb->data, DPTR_ALIGN) - skb->data;
+	/* Zero length DMA descriptors are problematic as they seem to
+	 * terminate DMA transfers. Avoid them by simply using a length of
+	 * DPTR_ALIGN (4) when skb data is aligned to DPTR_ALIGN.
+	 *
+	 * As skb is guaranteed to have at least ETH_ZLEN (60) bytes of
+	 * data by the call to skb_put_padto() above this is safe with
+	 * respect to both the length of the first DMA descriptor (len)
+	 * overflowing the available data and the length of the second DMA
+	 * descriptor (skb->len - len) being negative.
+	 */
+	if (len == 0)
+		len = DPTR_ALIGN;
+
 	memcpy(buffer, skb->data, len);
 	dma_addr = dma_map_single(ndev->dev.parent, buffer, len, DMA_TO_DEVICE);
 	if (dma_mapping_error(ndev->dev.parent, dma_addr))
@@ -1558,7 +1586,8 @@ static netdev_tx_t ravb_start_xmit(struc
 
 	priv->cur_tx[q] += NUM_TX_DESC;
 	if (priv->cur_tx[q] - priv->dirty_tx[q] >
-	    (priv->num_tx_ring[q] - 1) * NUM_TX_DESC && !ravb_tx_free(ndev, q))
+	    (priv->num_tx_ring[q] - 1) * NUM_TX_DESC &&
+	    !ravb_tx_free(ndev, q, true))
 		netif_stop_subqueue(ndev, q);
 
 exit:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/renesas/sh_eth.c linux-libre-4.9.52-gnu/drivers/net/ethernet/renesas/sh_eth.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/renesas/sh_eth.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/renesas/sh_eth.c	2017-09-27 08:40:05.000000000 -0400
@@ -574,6 +574,7 @@ static struct sh_eth_cpu_data r8a7740_da
 	.rpadir_value   = 2 << 16,
 	.no_trimd	= 1,
 	.no_ade		= 1,
+	.hw_crc		= 1,
 	.tsu		= 1,
 	.select_mii	= 1,
 	.shift_rd0	= 1,
@@ -802,7 +803,7 @@ static struct sh_eth_cpu_data sh7734_dat
 
 	.ecsr_value	= ECSR_ICD | ECSR_MPD,
 	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
-	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003f07ff,
 
 	.tx_check	= EESR_TC1 | EESR_FTC,
 	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
@@ -819,6 +820,7 @@ static struct sh_eth_cpu_data sh7734_dat
 	.tsu		= 1,
 	.hw_crc		= 1,
 	.select_mii	= 1,
+	.shift_rd0	= 1,
 };
 
 /* SH7763 */
@@ -831,7 +833,7 @@ static struct sh_eth_cpu_data sh7763_dat
 
 	.ecsr_value	= ECSR_ICD | ECSR_MPD,
 	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
-	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003f07ff,
 
 	.tx_check	= EESR_TC1 | EESR_FTC,
 	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
@@ -1059,12 +1061,70 @@ static struct mdiobb_ops bb_ops = {
 	.get_mdio_data = sh_get_mdio,
 };
 
+/* free Tx skb function */
+static int sh_eth_tx_free(struct net_device *ndev, bool sent_only)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	struct sh_eth_txdesc *txdesc;
+	int free_num = 0;
+	int entry;
+	bool sent;
+
+	for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
+		entry = mdp->dirty_tx % mdp->num_tx_ring;
+		txdesc = &mdp->tx_ring[entry];
+		sent = !(txdesc->status & cpu_to_le32(TD_TACT));
+		if (sent_only && !sent)
+			break;
+		/* TACT bit must be checked before all the following reads */
+		dma_rmb();
+		netif_info(mdp, tx_done, ndev,
+			   "tx entry %d status 0x%08x\n",
+			   entry, le32_to_cpu(txdesc->status));
+		/* Free the original skb. */
+		if (mdp->tx_skbuff[entry]) {
+			dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr),
+					 le32_to_cpu(txdesc->len) >> 16,
+					 DMA_TO_DEVICE);
+			dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
+			mdp->tx_skbuff[entry] = NULL;
+			free_num++;
+		}
+		txdesc->status = cpu_to_le32(TD_TFP);
+		if (entry >= mdp->num_tx_ring - 1)
+			txdesc->status |= cpu_to_le32(TD_TDLE);
+
+		if (sent) {
+			ndev->stats.tx_packets++;
+			ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16;
+		}
+	}
+	return free_num;
+}
+
 /* free skb and descriptor buffer */
 static void sh_eth_ring_free(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 	int ringsize, i;
 
+	if (mdp->rx_ring) {
+		for (i = 0; i < mdp->num_rx_ring; i++) {
+			if (mdp->rx_skbuff[i]) {
+				struct sh_eth_rxdesc *rxdesc = &mdp->rx_ring[i];
+
+				dma_unmap_single(&ndev->dev,
+						 le32_to_cpu(rxdesc->addr),
+						 ALIGN(mdp->rx_buf_sz, 32),
+						 DMA_FROM_DEVICE);
+			}
+		}
+		ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
+		dma_free_coherent(NULL, ringsize, mdp->rx_ring,
+				  mdp->rx_desc_dma);
+		mdp->rx_ring = NULL;
+	}
+
 	/* Free Rx skb ringbuffer */
 	if (mdp->rx_skbuff) {
 		for (i = 0; i < mdp->num_rx_ring; i++)
@@ -1073,27 +1133,18 @@ static void sh_eth_ring_free(struct net_
 	kfree(mdp->rx_skbuff);
 	mdp->rx_skbuff = NULL;
 
-	/* Free Tx skb ringbuffer */
-	if (mdp->tx_skbuff) {
-		for (i = 0; i < mdp->num_tx_ring; i++)
-			dev_kfree_skb(mdp->tx_skbuff[i]);
-	}
-	kfree(mdp->tx_skbuff);
-	mdp->tx_skbuff = NULL;
-
-	if (mdp->rx_ring) {
-		ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
-		dma_free_coherent(NULL, ringsize, mdp->rx_ring,
-				  mdp->rx_desc_dma);
-		mdp->rx_ring = NULL;
-	}
-
 	if (mdp->tx_ring) {
+		sh_eth_tx_free(ndev, false);
+
 		ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring;
 		dma_free_coherent(NULL, ringsize, mdp->tx_ring,
 				  mdp->tx_desc_dma);
 		mdp->tx_ring = NULL;
 	}
+
+	/* Free Tx skb ringbuffer */
+	kfree(mdp->tx_skbuff);
+	mdp->tx_skbuff = NULL;
 }
 
 /* format skb and descriptor buffer */
@@ -1341,43 +1392,6 @@ static void sh_eth_dev_exit(struct net_d
 	update_mac_address(ndev);
 }
 
-/* free Tx skb function */
-static int sh_eth_txfree(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-	struct sh_eth_txdesc *txdesc;
-	int free_num = 0;
-	int entry;
-
-	for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
-		entry = mdp->dirty_tx % mdp->num_tx_ring;
-		txdesc = &mdp->tx_ring[entry];
-		if (txdesc->status & cpu_to_le32(TD_TACT))
-			break;
-		/* TACT bit must be checked before all the following reads */
-		dma_rmb();
-		netif_info(mdp, tx_done, ndev,
-			   "tx entry %d status 0x%08x\n",
-			   entry, le32_to_cpu(txdesc->status));
-		/* Free the original skb. */
-		if (mdp->tx_skbuff[entry]) {
-			dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr),
-					 le32_to_cpu(txdesc->len) >> 16,
-					 DMA_TO_DEVICE);
-			dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
-			mdp->tx_skbuff[entry] = NULL;
-			free_num++;
-		}
-		txdesc->status = cpu_to_le32(TD_TFP);
-		if (entry >= mdp->num_tx_ring - 1)
-			txdesc->status |= cpu_to_le32(TD_TDLE);
-
-		ndev->stats.tx_packets++;
-		ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16;
-	}
-	return free_num;
-}
-
 /* Packet receive function */
 static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 {
@@ -1620,7 +1634,7 @@ ignore_link:
 			   intr_status, mdp->cur_tx, mdp->dirty_tx,
 			   (u32)ndev->state, edtrr);
 		/* dirty buffer free */
-		sh_eth_txfree(ndev);
+		sh_eth_tx_free(ndev, true);
 
 		/* SH7712 BUG */
 		if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) {
@@ -1679,7 +1693,7 @@ static irqreturn_t sh_eth_interrupt(int
 		/* Clear Tx interrupts */
 		sh_eth_write(ndev, intr_status & cd->tx_check, EESR);
 
-		sh_eth_txfree(ndev);
+		sh_eth_tx_free(ndev, true);
 		netif_wake_queue(ndev);
 	}
 
@@ -2307,7 +2321,7 @@ static int sh_eth_start_xmit(struct sk_b
 
 	spin_lock_irqsave(&mdp->lock, flags);
 	if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) {
-		if (!sh_eth_txfree(ndev)) {
+		if (!sh_eth_tx_free(ndev, true)) {
 			netif_warn(mdp, tx_queued, ndev, "TxFD exhausted.\n");
 			netif_stop_queue(ndev);
 			spin_unlock_irqrestore(&mdp->lock, flags);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/rocker/rocker_ofdpa.c linux-libre-4.9.52-gnu/drivers/net/ethernet/rocker/rocker_ofdpa.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/rocker/rocker_ofdpa.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/rocker/rocker_ofdpa.c	2017-09-27 08:40:05.000000000 -0400
@@ -1505,8 +1505,8 @@ static int ofdpa_port_ipv4_nh(struct ofd
 		*index = entry->index;
 		resolved = false;
 	} else if (removing) {
-		ofdpa_neigh_del(trans, found);
 		*index = found->index;
+		ofdpa_neigh_del(trans, found);
 	} else if (updating) {
 		ofdpa_neigh_update(found, trans, NULL, false);
 		resolved = !is_zero_ether_addr(found->eth_dst);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/sfc/ef10.c linux-libre-4.9.52-gnu/drivers/net/ethernet/sfc/ef10.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/sfc/ef10.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/sfc/ef10.c	2017-09-27 08:40:05.000000000 -0400
@@ -4399,12 +4399,9 @@ static void efx_ef10_filter_uc_addr_list
 	struct efx_ef10_filter_table *table = efx->filter_state;
 	struct net_device *net_dev = efx->net_dev;
 	struct netdev_hw_addr *uc;
-	int addr_count;
 	unsigned int i;
 
-	addr_count = netdev_uc_count(net_dev);
 	table->uc_promisc = !!(net_dev->flags & IFF_PROMISC);
-	table->dev_uc_count = 1 + addr_count;
 	ether_addr_copy(table->dev_uc_list[0].addr, net_dev->dev_addr);
 	i = 1;
 	netdev_for_each_uc_addr(uc, net_dev) {
@@ -4415,6 +4412,8 @@ static void efx_ef10_filter_uc_addr_list
 		ether_addr_copy(table->dev_uc_list[i].addr, uc->addr);
 		i++;
 	}
+
+	table->dev_uc_count = i;
 }
 
 static void efx_ef10_filter_mc_addr_list(struct efx_nic *efx)
@@ -4422,11 +4421,10 @@ static void efx_ef10_filter_mc_addr_list
 	struct efx_ef10_filter_table *table = efx->filter_state;
 	struct net_device *net_dev = efx->net_dev;
 	struct netdev_hw_addr *mc;
-	unsigned int i, addr_count;
+	unsigned int i;
 
 	table->mc_promisc = !!(net_dev->flags & (IFF_PROMISC | IFF_ALLMULTI));
 
-	addr_count = netdev_mc_count(net_dev);
 	i = 0;
 	netdev_for_each_mc_addr(mc, net_dev) {
 		if (i >= EFX_EF10_FILTER_DEV_MC_MAX) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/sfc/falcon.c linux-libre-4.9.52-gnu/drivers/net/ethernet/sfc/falcon.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/sfc/falcon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/sfc/falcon.c	2017-09-27 08:40:05.000000000 -0400
@@ -2801,6 +2801,11 @@ const struct efx_nic_type falcon_a1_nic_
 	.timer_period_max =  1 << FRF_AB_TC_TIMER_VAL_WIDTH,
 	.offload_features = NETIF_F_IP_CSUM,
 	.mcdi_max_ver = -1,
+#ifdef CONFIG_SFC_SRIOV
+	.vswitching_probe = efx_port_dummy_op_int,
+	.vswitching_restore = efx_port_dummy_op_int,
+	.vswitching_remove = efx_port_dummy_op_void,
+#endif
 };
 
 const struct efx_nic_type falcon_b0_nic_type = {
@@ -2902,4 +2907,9 @@ const struct efx_nic_type falcon_b0_nic_
 	.offload_features = NETIF_F_IP_CSUM | NETIF_F_RXHASH | NETIF_F_NTUPLE,
 	.mcdi_max_ver = -1,
 	.max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS,
+#ifdef CONFIG_SFC_SRIOV
+	.vswitching_probe = efx_port_dummy_op_int,
+	.vswitching_restore = efx_port_dummy_op_int,
+	.vswitching_remove = efx_port_dummy_op_void,
+#endif
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c linux-libre-4.9.52-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -305,8 +305,12 @@ static int dwmac1000_irq_status(struct m
 {
 	void __iomem *ioaddr = hw->pcsr;
 	u32 intr_status = readl(ioaddr + GMAC_INT_STATUS);
+	u32 intr_mask = readl(ioaddr + GMAC_INT_MASK);
 	int ret = 0;
 
+	/* Discard masked bits */
+	intr_status &= ~intr_mask;
+
 	/* Not used events (e.g. MMC interrupts) are not handled. */
 	if ((intr_status & GMAC_INT_STATUS_MMCTIS))
 		x->mmc_tx_irq_n++;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c linux-libre-4.9.52-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -1953,7 +1953,7 @@ static void stmmac_tso_allocator(struct
 
 		priv->hw->desc->prepare_tso_tx_desc(desc, 0, buff_size,
 			0, 1,
-			(last_segment) && (buff_size < TSO_MAX_BUFF_SIZE),
+			(last_segment) && (tmp_len <= TSO_MAX_BUFF_SIZE),
 			0, 0);
 
 		tmp_len -= TSO_MAX_BUFF_SIZE;
@@ -3349,12 +3349,6 @@ int stmmac_dvr_probe(struct device *devi
 	spin_lock_init(&priv->lock);
 	spin_lock_init(&priv->tx_lock);
 
-	ret = register_netdev(ndev);
-	if (ret) {
-		pr_err("%s: ERROR %i registering the device\n", __func__, ret);
-		goto error_netdev_register;
-	}
-
 	/* If a specific clk_csr value is passed from the platform
 	 * this means that the CSR Clock Range selection cannot be
 	 * changed at run-time and it is fixed. Viceversa the driver'll try to
@@ -3376,15 +3370,24 @@ int stmmac_dvr_probe(struct device *devi
 		if (ret < 0) {
 			pr_debug("%s: MDIO bus (id: %d) registration failed",
 				 __func__, priv->plat->bus_id);
-			goto error_mdio_register;
+			goto error_napi_register;
 		}
 	}
 
-	return 0;
+	ret = register_netdev(ndev);
+	if (ret) {
+		pr_err("%s: ERROR %i registering the device\n", __func__, ret);
+		goto error_netdev_register;
+	}
+
+	return ret;
 
-error_mdio_register:
-	unregister_netdev(ndev);
 error_netdev_register:
+	if (priv->hw->pcs != STMMAC_PCS_RGMII &&
+	    priv->hw->pcs != STMMAC_PCS_TBI &&
+	    priv->hw->pcs != STMMAC_PCS_RTBI)
+		stmmac_mdio_unregister(ndev);
+error_napi_register:
 	netif_napi_del(&priv->napi);
 error_hw_init:
 	clk_disable_unprepare(priv->pclk);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c linux-libre-4.9.52-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -346,6 +346,7 @@ void stmmac_remove_config_dt(struct plat
 	if (of_phy_is_fixed_link(np))
 		of_phy_deregister_fixed_link(np);
 	of_node_put(plat->phy_node);
+	of_node_put(plat->mdio_node);
 }
 #else
 struct plat_stmmacenet_data *
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/ti/cpmac.c linux-libre-4.9.52-gnu/drivers/net/ethernet/ti/cpmac.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/ti/cpmac.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/ti/cpmac.c	2017-09-27 08:40:05.000000000 -0400
@@ -1211,7 +1211,7 @@ int cpmac_init(void)
 		goto fail_alloc;
 	}
 
-#warning FIXME: unhardcode gpio&reset bits
+	/* FIXME: unhardcode gpio&reset bits */
 	ar7_gpio_disable(26);
 	ar7_gpio_disable(27);
 	ar7_device_reset(AR7_RESET_BIT_CPMAC_LO);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/ti/cpsw.c linux-libre-4.9.52-gnu/drivers/net/ethernet/ti/cpsw.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/ti/cpsw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/ti/cpsw.c	2017-09-27 08:40:05.000000000 -0400
@@ -2925,7 +2925,7 @@ static int cpsw_resume(struct device *de
 {
 	struct platform_device	*pdev = to_platform_device(dev);
 	struct net_device	*ndev = platform_get_drvdata(pdev);
-	struct cpsw_common	*cpsw = netdev_priv(ndev);
+	struct cpsw_common	*cpsw = ndev_to_cpsw(ndev);
 
 	/* Select default pin state */
 	pinctrl_pm_select_default_state(dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c linux-libre-4.9.52-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c
--- linux-libre-4.9-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c	2017-09-27 08:40:05.000000000 -0400
@@ -100,6 +100,14 @@
 /* BUFFER_ALIGN(adr) calculates the number of bytes to the next alignment. */
 #define BUFFER_ALIGN(adr) ((ALIGNMENT - ((u32) adr)) % ALIGNMENT)
 
+#ifdef __BIG_ENDIAN
+#define xemaclite_readl		ioread32be
+#define xemaclite_writel	iowrite32be
+#else
+#define xemaclite_readl		ioread32
+#define xemaclite_writel	iowrite32
+#endif
+
 /**
  * struct net_local - Our private per device data
  * @ndev:		instance of the network device
@@ -156,15 +164,15 @@ static void xemaclite_enable_interrupts(
 	u32 reg_data;
 
 	/* Enable the Tx interrupts for the first Buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
-		     drvdata->base_addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
+			 drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Enable the Rx interrupts for the first buffer */
-	__raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
+	xemaclite_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
 
 	/* Enable the Global Interrupt Enable */
-	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
+	xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 }
 
 /**
@@ -179,17 +187,17 @@ static void xemaclite_disable_interrupts
 	u32 reg_data;
 
 	/* Disable the Global Interrupt Enable */
-	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
+	xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 
 	/* Disable the Tx interrupts for the first buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
-		     drvdata->base_addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
+			 drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Disable the Rx interrupts for the first buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_RSR_OFFSET);
-	__raw_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
-		     drvdata->base_addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_RSR_OFFSET);
+	xemaclite_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
+			 drvdata->base_addr + XEL_RSR_OFFSET);
 }
 
 /**
@@ -321,7 +329,7 @@ static int xemaclite_send_data(struct ne
 		byte_count = ETH_FRAME_LEN;
 
 	/* Check if the expected buffer is available */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 	if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 	     XEL_TSR_XMIT_ACTIVE_MASK)) == 0) {
 
@@ -334,7 +342,7 @@ static int xemaclite_send_data(struct ne
 
 		addr = (void __iomem __force *)((u32 __force)addr ^
 						 XEL_BUFFER_OFFSET);
-		reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+		reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 
 		if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 		     XEL_TSR_XMIT_ACTIVE_MASK)) != 0)
@@ -345,16 +353,16 @@ static int xemaclite_send_data(struct ne
 	/* Write the frame to the buffer */
 	xemaclite_aligned_write(data, (u32 __force *) addr, byte_count);
 
-	__raw_writel((byte_count & XEL_TPLR_LENGTH_MASK),
-		     addr + XEL_TPLR_OFFSET);
+	xemaclite_writel((byte_count & XEL_TPLR_LENGTH_MASK),
+			 addr + XEL_TPLR_OFFSET);
 
 	/* Update the Tx Status Register to indicate that there is a
 	 * frame to send. Set the XEL_TSR_XMIT_ACTIVE_MASK flag which
 	 * is used by the interrupt handler to check whether a frame
 	 * has been transmitted */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 	reg_data |= (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_XMIT_ACTIVE_MASK);
-	__raw_writel(reg_data, addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data, addr + XEL_TSR_OFFSET);
 
 	return 0;
 }
@@ -369,7 +377,7 @@ static int xemaclite_send_data(struct ne
  *
  * Return:	Total number of bytes received
  */
-static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
+static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data, int maxlen)
 {
 	void __iomem *addr;
 	u16 length, proto_type;
@@ -379,7 +387,7 @@ static u16 xemaclite_recv_data(struct ne
 	addr = (drvdata->base_addr + drvdata->next_rx_buf_to_use);
 
 	/* Verify which buffer has valid data */
-	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 
 	if ((reg_data & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
 		if (drvdata->rx_ping_pong != 0)
@@ -396,27 +404,28 @@ static u16 xemaclite_recv_data(struct ne
 			return 0;	/* No data was available */
 
 		/* Verify that buffer has valid data */
-		reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+		reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 		if ((reg_data & XEL_RSR_RECV_DONE_MASK) !=
 		     XEL_RSR_RECV_DONE_MASK)
 			return 0;	/* No data was available */
 	}
 
 	/* Get the protocol type of the ethernet frame that arrived */
-	proto_type = ((ntohl(__raw_readl(addr + XEL_HEADER_OFFSET +
+	proto_type = ((ntohl(xemaclite_readl(addr + XEL_HEADER_OFFSET +
 			XEL_RXBUFF_OFFSET)) >> XEL_HEADER_SHIFT) &
 			XEL_RPLR_LENGTH_MASK);
 
 	/* Check if received ethernet frame is a raw ethernet frame
 	 * or an IP packet or an ARP packet */
-	if (proto_type > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
+	if (proto_type > ETH_DATA_LEN) {
 
 		if (proto_type == ETH_P_IP) {
-			length = ((ntohl(__raw_readl(addr +
+			length = ((ntohl(xemaclite_readl(addr +
 					XEL_HEADER_IP_LENGTH_OFFSET +
 					XEL_RXBUFF_OFFSET)) >>
 					XEL_HEADER_SHIFT) &
 					XEL_RPLR_LENGTH_MASK);
+			length = min_t(u16, length, ETH_DATA_LEN);
 			length += ETH_HLEN + ETH_FCS_LEN;
 
 		} else if (proto_type == ETH_P_ARP)
@@ -429,14 +438,17 @@ static u16 xemaclite_recv_data(struct ne
 		/* Use the length in the frame, plus the header and trailer */
 		length = proto_type + ETH_HLEN + ETH_FCS_LEN;
 
+	if (WARN_ON(length > maxlen))
+		length = maxlen;
+
 	/* Read from the EmacLite device */
 	xemaclite_aligned_read((u32 __force *) (addr + XEL_RXBUFF_OFFSET),
 				data, length);
 
 	/* Acknowledge the frame */
-	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 	reg_data &= ~XEL_RSR_RECV_DONE_MASK;
-	__raw_writel(reg_data, addr + XEL_RSR_OFFSET);
+	xemaclite_writel(reg_data, addr + XEL_RSR_OFFSET);
 
 	return length;
 }
@@ -463,14 +475,14 @@ static void xemaclite_update_address(str
 
 	xemaclite_aligned_write(address_ptr, (u32 __force *) addr, ETH_ALEN);
 
-	__raw_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
+	xemaclite_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
 
 	/* Update the MAC address in the EmacLite */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
 
 	/* Wait for EmacLite to finish with the MAC address update */
-	while ((__raw_readl(addr + XEL_TSR_OFFSET) &
+	while ((xemaclite_readl(addr + XEL_TSR_OFFSET) &
 		XEL_TSR_PROG_MAC_ADDR) != 0)
 		;
 }
@@ -603,7 +615,7 @@ static void xemaclite_rx_handler(struct
 
 	skb_reserve(skb, 2);
 
-	len = xemaclite_recv_data(lp, (u8 *) skb->data);
+	len = xemaclite_recv_data(lp, (u8 *) skb->data, len);
 
 	if (!len) {
 		dev->stats.rx_errors++;
@@ -640,32 +652,32 @@ static irqreturn_t xemaclite_interrupt(i
 	u32 tx_status;
 
 	/* Check if there is Rx Data available */
-	if ((__raw_readl(base_addr + XEL_RSR_OFFSET) &
+	if ((xemaclite_readl(base_addr + XEL_RSR_OFFSET) &
 			 XEL_RSR_RECV_DONE_MASK) ||
-	    (__raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
+	    (xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
 			 & XEL_RSR_RECV_DONE_MASK))
 
 		xemaclite_rx_handler(dev);
 
 	/* Check if the Transmission for the first buffer is completed */
-	tx_status = __raw_readl(base_addr + XEL_TSR_OFFSET);
+	tx_status = xemaclite_readl(base_addr + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		__raw_writel(tx_status, base_addr + XEL_TSR_OFFSET);
+		xemaclite_writel(tx_status, base_addr + XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
 
 	/* Check if the Transmission for the second buffer is completed */
-	tx_status = __raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
+	tx_status = xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		__raw_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
-			     XEL_TSR_OFFSET);
+		xemaclite_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
+				 XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
@@ -698,7 +710,7 @@ static int xemaclite_mdio_wait(struct ne
 	/* wait for the MDIO interface to not be busy or timeout
 	   after some time.
 	*/
-	while (__raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
+	while (xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
 			XEL_MDIOCTRL_MDIOSTS_MASK) {
 		if (time_before_eq(end, jiffies)) {
 			WARN_ON(1);
@@ -734,17 +746,17 @@ static int xemaclite_mdio_read(struct mi
 	 * MDIO Address register. Set the Status bit in the MDIO Control
 	 * register to start a MDIO read transaction.
 	 */
-	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	__raw_writel(XEL_MDIOADDR_OP_MASK |
-		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
-		     lp->base_addr + XEL_MDIOADDR_OFFSET);
-	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(XEL_MDIOADDR_OP_MASK |
+			 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+			 lp->base_addr + XEL_MDIOADDR_OFFSET);
+	xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	if (xemaclite_mdio_wait(lp))
 		return -ETIMEDOUT;
 
-	rc = __raw_readl(lp->base_addr + XEL_MDIORD_OFFSET);
+	rc = xemaclite_readl(lp->base_addr + XEL_MDIORD_OFFSET);
 
 	dev_dbg(&lp->ndev->dev,
 		"xemaclite_mdio_read(phy_id=%i, reg=%x) == %x\n",
@@ -781,13 +793,13 @@ static int xemaclite_mdio_write(struct m
 	 * Data register. Finally, set the Status bit in the MDIO Control
 	 * register to start a MDIO write transaction.
 	 */
-	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	__raw_writel(~XEL_MDIOADDR_OP_MASK &
-		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
-		     lp->base_addr + XEL_MDIOADDR_OFFSET);
-	__raw_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
-	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(~XEL_MDIOADDR_OP_MASK &
+			 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+			 lp->base_addr + XEL_MDIOADDR_OFFSET);
+	xemaclite_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
+	xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	return 0;
 }
@@ -834,8 +846,8 @@ static int xemaclite_mdio_setup(struct n
 	/* Enable the MDIO bus by asserting the enable bit in MDIO Control
 	 * register.
 	 */
-	__raw_writel(XEL_MDIOCTRL_MDIOEN_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(XEL_MDIOCTRL_MDIOEN_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	bus = mdiobus_alloc();
 	if (!bus) {
@@ -1140,8 +1152,8 @@ static int xemaclite_of_probe(struct pla
 	}
 
 	/* Clear the Tx CSR's in case this is a restart */
-	__raw_writel(0, lp->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
+	xemaclite_writel(0, lp->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 
 	/* Set the MAC address in the EmacLite device */
 	xemaclite_update_address(lp, ndev->dev_addr);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/geneve.c linux-libre-4.9.52-gnu/drivers/net/geneve.c
--- linux-libre-4.9-gnu/drivers/net/geneve.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/geneve.c	2017-09-27 08:40:05.000000000 -0400
@@ -1039,16 +1039,22 @@ static netdev_tx_t geneve_xmit(struct sk
 {
 	struct geneve_dev *geneve = netdev_priv(dev);
 	struct ip_tunnel_info *info = NULL;
+	int err;
 
 	if (geneve->collect_md)
 		info = skb_tunnel_info(skb);
 
+	rcu_read_lock();
 #if IS_ENABLED(CONFIG_IPV6)
 	if ((info && ip_tunnel_info_af(info) == AF_INET6) ||
 	    (!info && geneve->remote.sa.sa_family == AF_INET6))
-		return geneve6_xmit_skb(skb, dev, info);
+		err = geneve6_xmit_skb(skb, dev, info);
+	else
 #endif
-	return geneve_xmit_skb(skb, dev, info);
+		err = geneve_xmit_skb(skb, dev, info);
+	rcu_read_unlock();
+
+	return err;
 }
 
 static int __geneve_change_mtu(struct net_device *dev, int new_mtu, bool strict)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/gtp.c linux-libre-4.9.52-gnu/drivers/net/gtp.c
--- linux-libre-4.9-gnu/drivers/net/gtp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/gtp.c	2017-09-27 08:40:05.000000000 -0400
@@ -1372,3 +1372,4 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <hwelte@sysmocom.de>");
 MODULE_DESCRIPTION("Interface driver for GTP encapsulated traffic");
 MODULE_ALIAS_RTNL_LINK("gtp");
+MODULE_ALIAS_GENL_FAMILY("gtp");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/hamradio/mkiss.c linux-libre-4.9.52-gnu/drivers/net/hamradio/mkiss.c
--- linux-libre-4.9-gnu/drivers/net/hamradio/mkiss.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/hamradio/mkiss.c	2017-09-27 08:40:05.000000000 -0400
@@ -648,8 +648,8 @@ static void ax_setup(struct net_device *
 {
 	/* Finish setting up the DEVICE info. */
 	dev->mtu             = AX_MTU;
-	dev->hard_header_len = 0;
-	dev->addr_len        = 0;
+	dev->hard_header_len = AX25_MAX_HEADER_LEN;
+	dev->addr_len        = AX25_ADDR_LEN;
 	dev->type            = ARPHRD_AX25;
 	dev->tx_queue_len    = 10;
 	dev->header_ops      = &ax25_header_ops;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/hyperv/netvsc.c linux-libre-4.9.52-gnu/drivers/net/hyperv/netvsc.c
--- linux-libre-4.9-gnu/drivers/net/hyperv/netvsc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/hyperv/netvsc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1288,6 +1288,9 @@ void netvsc_channel_cb(void *context)
 	ndev = hv_get_drvdata(device);
 	buffer = get_per_channel_state(channel);
 
+	/* commit_rd_index() -> hv_signal_on_read() needs this. */
+	init_cached_read_index(channel);
+
 	do {
 		desc = get_next_pkt_raw(channel);
 		if (desc != NULL) {
@@ -1340,6 +1343,9 @@ void netvsc_channel_cb(void *context)
 
 			bufferlen = bytes_recvd;
 		}
+
+		init_cached_read_index(channel);
+
 	} while (1);
 
 	if (bufferlen > NETVSC_PACKET_SIZE)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/hyperv/netvsc_drv.c linux-libre-4.9.52-gnu/drivers/net/hyperv/netvsc_drv.c
--- linux-libre-4.9-gnu/drivers/net/hyperv/netvsc_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/hyperv/netvsc_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -659,6 +659,7 @@ int netvsc_recv_callback(struct hv_devic
 	 * policy filters on the host). Deliver these via the VF
 	 * interface in the guest.
 	 */
+	rcu_read_lock();
 	vf_netdev = rcu_dereference(net_device_ctx->vf_netdev);
 	if (vf_netdev && (vf_netdev->flags & IFF_UP))
 		net = vf_netdev;
@@ -667,6 +668,7 @@ int netvsc_recv_callback(struct hv_devic
 	skb = netvsc_alloc_recv_skb(net, packet, csum_info, *data, vlan_tci);
 	if (unlikely(!skb)) {
 		++net->stats.rx_dropped;
+		rcu_read_unlock();
 		return NVSP_STAT_FAIL;
 	}
 
@@ -696,6 +698,7 @@ int netvsc_recv_callback(struct hv_devic
 	 * TODO - use NAPI?
 	 */
 	netif_rx(skb);
+	rcu_read_unlock();
 
 	return 0;
 }
@@ -1081,7 +1084,12 @@ static void netvsc_link_change(struct wo
 	bool notify = false, reschedule = false;
 	unsigned long flags, next_reconfig, delay;
 
-	rtnl_lock();
+	/* if changes are happening, comeback later */
+	if (!rtnl_trylock()) {
+		schedule_delayed_work(&ndev_ctx->dwork, LINKCHANGE_INT);
+		return;
+	}
+
 	if (ndev_ctx->start_remove)
 		goto out_unlock;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ieee802154/atusb.c linux-libre-4.9.52-gnu/drivers/net/ieee802154/atusb.c
--- linux-libre-4.9-gnu/drivers/net/ieee802154/atusb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ieee802154/atusb.c	2017-09-27 08:40:05.000000000 -0400
@@ -112,13 +112,26 @@ static int atusb_read_reg(struct atusb *
 {
 	struct usb_device *usb_dev = atusb->usb_dev;
 	int ret;
+	uint8_t *buffer;
 	uint8_t value;
 
+	buffer = kmalloc(1, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
 	dev_dbg(&usb_dev->dev, "atusb: reg = 0x%x\n", reg);
 	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
 				ATUSB_REG_READ, ATUSB_REQ_FROM_DEV,
-				0, reg, &value, 1, 1000);
-	return ret >= 0 ? value : ret;
+				0, reg, buffer, 1, 1000);
+
+	if (ret >= 0) {
+		value = buffer[0];
+		kfree(buffer);
+		return value;
+	} else {
+		kfree(buffer);
+		return ret;
+	}
 }
 
 static int atusb_write_subreg(struct atusb *atusb, uint8_t reg, uint8_t mask,
@@ -587,9 +600,13 @@ static struct ieee802154_ops atusb_ops =
 static int atusb_get_and_show_revision(struct atusb *atusb)
 {
 	struct usb_device *usb_dev = atusb->usb_dev;
-	unsigned char buffer[3];
+	unsigned char *buffer;
 	int ret;
 
+	buffer = kmalloc(3, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
 	/* Get a couple of the ATMega Firmware values */
 	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
 				ATUSB_ID, ATUSB_REQ_FROM_DEV, 0, 0,
@@ -605,15 +622,20 @@ static int atusb_get_and_show_revision(s
 		dev_info(&usb_dev->dev, "Please update to version 0.2 or newer");
 	}
 
+	kfree(buffer);
 	return ret;
 }
 
 static int atusb_get_and_show_build(struct atusb *atusb)
 {
 	struct usb_device *usb_dev = atusb->usb_dev;
-	char build[ATUSB_BUILD_SIZE + 1];
+	char *build;
 	int ret;
 
+	build = kmalloc(ATUSB_BUILD_SIZE + 1, GFP_KERNEL);
+	if (!build)
+		return -ENOMEM;
+
 	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
 				ATUSB_BUILD, ATUSB_REQ_FROM_DEV, 0, 0,
 				build, ATUSB_BUILD_SIZE, 1000);
@@ -622,6 +644,7 @@ static int atusb_get_and_show_build(stru
 		dev_info(&usb_dev->dev, "Firmware: build %s\n", build);
 	}
 
+	kfree(build);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/irda/irda-usb.c linux-libre-4.9.52-gnu/drivers/net/irda/irda-usb.c
--- linux-libre-4.9-gnu/drivers/net/irda/irda-usb.c	2016-12-11 17:51:03.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/irda/irda-usb.c	2017-09-27 14:57:18.000000000 -0400
@@ -1074,7 +1074,7 @@ static int stir421x_patch_device(struct
 
         /*(DEBLOBBED)*/
         sprintf(stir421x_fw_name, "/*(DEBLOBBED)*/",
-                self->usbdev->descriptor.bcdDevice);
+		le16_to_cpu(self->usbdev->descriptor.bcdDevice));
         ret = reject_firmware(&fw, stir421x_fw_name, &self->usbdev->dev);
         if (ret < 0)
                 return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/irda/mcs7780.c linux-libre-4.9.52-gnu/drivers/net/irda/mcs7780.c
--- linux-libre-4.9-gnu/drivers/net/irda/mcs7780.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/irda/mcs7780.c	2017-09-27 08:40:05.000000000 -0400
@@ -141,9 +141,19 @@ static int mcs_set_reg(struct mcs_cb *mc
 static int mcs_get_reg(struct mcs_cb *mcs, __u16 reg, __u16 * val)
 {
 	struct usb_device *dev = mcs->usbdev;
-	int ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
-				  MCS_RD_RTYPE, 0, reg, val, 2,
-				  msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+	void *dmabuf;
+	int ret;
+
+	dmabuf = kmalloc(sizeof(__u16), GFP_KERNEL);
+	if (!dmabuf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
+			      MCS_RD_RTYPE, 0, reg, dmabuf, 2,
+			      msecs_to_jiffies(MCS_CTRL_TIMEOUT));
+
+	memcpy(val, dmabuf, sizeof(__u16));
+	kfree(dmabuf);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/loopback.c linux-libre-4.9.52-gnu/drivers/net/loopback.c
--- linux-libre-4.9-gnu/drivers/net/loopback.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/loopback.c	2017-09-27 08:40:05.000000000 -0400
@@ -164,6 +164,7 @@ static void loopback_setup(struct net_de
 {
 	dev->mtu		= 64 * 1024;
 	dev->hard_header_len	= ETH_HLEN;	/* 14	*/
+	dev->min_header_len	= ETH_HLEN;	/* 14	*/
 	dev->addr_len		= ETH_ALEN;	/* 6	*/
 	dev->type		= ARPHRD_LOOPBACK;	/* 0x0001*/
 	dev->flags		= IFF_LOOPBACK;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/macsec.c linux-libre-4.9.52-gnu/drivers/net/macsec.c
--- linux-libre-4.9-gnu/drivers/net/macsec.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/macsec.c	2017-09-27 08:40:05.000000000 -0400
@@ -617,7 +617,8 @@ static void macsec_encrypt_done(struct c
 
 static struct aead_request *macsec_alloc_req(struct crypto_aead *tfm,
 					     unsigned char **iv,
-					     struct scatterlist **sg)
+					     struct scatterlist **sg,
+					     int num_frags)
 {
 	size_t size, iv_offset, sg_offset;
 	struct aead_request *req;
@@ -629,7 +630,7 @@ static struct aead_request *macsec_alloc
 
 	size = ALIGN(size, __alignof__(struct scatterlist));
 	sg_offset = size;
-	size += sizeof(struct scatterlist) * (MAX_SKB_FRAGS + 1);
+	size += sizeof(struct scatterlist) * num_frags;
 
 	tmp = kmalloc(size, GFP_ATOMIC);
 	if (!tmp)
@@ -649,6 +650,7 @@ static struct sk_buff *macsec_encrypt(st
 {
 	int ret;
 	struct scatterlist *sg;
+	struct sk_buff *trailer;
 	unsigned char *iv;
 	struct ethhdr *eth;
 	struct macsec_eth_header *hh;
@@ -723,7 +725,14 @@ static struct sk_buff *macsec_encrypt(st
 		return ERR_PTR(-EINVAL);
 	}
 
-	req = macsec_alloc_req(tx_sa->key.tfm, &iv, &sg);
+	ret = skb_cow_data(skb, 0, &trailer);
+	if (unlikely(ret < 0)) {
+		macsec_txsa_put(tx_sa);
+		kfree_skb(skb);
+		return ERR_PTR(ret);
+	}
+
+	req = macsec_alloc_req(tx_sa->key.tfm, &iv, &sg, ret);
 	if (!req) {
 		macsec_txsa_put(tx_sa);
 		kfree_skb(skb);
@@ -732,7 +741,7 @@ static struct sk_buff *macsec_encrypt(st
 
 	macsec_fill_iv(iv, secy->sci, pn);
 
-	sg_init_table(sg, MAX_SKB_FRAGS + 1);
+	sg_init_table(sg, ret);
 	skb_to_sgvec(skb, sg, 0, skb->len);
 
 	if (tx_sc->encrypt) {
@@ -914,6 +923,7 @@ static struct sk_buff *macsec_decrypt(st
 {
 	int ret;
 	struct scatterlist *sg;
+	struct sk_buff *trailer;
 	unsigned char *iv;
 	struct aead_request *req;
 	struct macsec_eth_header *hdr;
@@ -924,7 +934,12 @@ static struct sk_buff *macsec_decrypt(st
 	if (!skb)
 		return ERR_PTR(-ENOMEM);
 
-	req = macsec_alloc_req(rx_sa->key.tfm, &iv, &sg);
+	ret = skb_cow_data(skb, 0, &trailer);
+	if (unlikely(ret < 0)) {
+		kfree_skb(skb);
+		return ERR_PTR(ret);
+	}
+	req = macsec_alloc_req(rx_sa->key.tfm, &iv, &sg, ret);
 	if (!req) {
 		kfree_skb(skb);
 		return ERR_PTR(-ENOMEM);
@@ -933,7 +948,7 @@ static struct sk_buff *macsec_decrypt(st
 	hdr = (struct macsec_eth_header *)skb->data;
 	macsec_fill_iv(iv, sci, ntohl(hdr->packet_number));
 
-	sg_init_table(sg, MAX_SKB_FRAGS + 1);
+	sg_init_table(sg, ret);
 	skb_to_sgvec(skb, sg, 0, skb->len);
 
 	if (hdr->tci_an & MACSEC_TCI_E) {
@@ -3495,6 +3510,7 @@ module_init(macsec_init);
 module_exit(macsec_exit);
 
 MODULE_ALIAS_RTNL_LINK("macsec");
+MODULE_ALIAS_GENL_FAMILY("macsec");
 
 MODULE_DESCRIPTION("MACsec IEEE 802.1AE");
 MODULE_LICENSE("GPL v2");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/macvlan.c linux-libre-4.9.52-gnu/drivers/net/macvlan.c
--- linux-libre-4.9-gnu/drivers/net/macvlan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/macvlan.c	2017-09-27 08:40:05.000000000 -0400
@@ -1140,6 +1140,7 @@ static int macvlan_port_create(struct ne
 static void macvlan_port_destroy(struct net_device *dev)
 {
 	struct macvlan_port *port = macvlan_port_get_rtnl(dev);
+	struct sk_buff *skb;
 
 	dev->priv_flags &= ~IFF_MACVLAN_PORT;
 	netdev_rx_handler_unregister(dev);
@@ -1148,7 +1149,15 @@ static void macvlan_port_destroy(struct
 	 * but we need to cancel it and purge left skbs if any.
 	 */
 	cancel_work_sync(&port->bc_work);
-	__skb_queue_purge(&port->bc_queue);
+
+	while ((skb = __skb_dequeue(&port->bc_queue))) {
+		const struct macvlan_dev *src = MACVLAN_SKB_CB(skb)->src;
+
+		if (src)
+			dev_put(src->dev);
+
+		kfree_skb(skb);
+	}
 
 	kfree_rcu(port, rcu);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/macvtap.c linux-libre-4.9.52-gnu/drivers/net/macvtap.c
--- linux-libre-4.9-gnu/drivers/net/macvtap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/macvtap.c	2017-09-27 08:40:05.000000000 -0400
@@ -682,7 +682,7 @@ static ssize_t macvtap_get_user(struct m
 	ssize_t n;
 
 	if (q->flags & IFF_VNET_HDR) {
-		vnet_hdr_len = q->vnet_hdr_sz;
+		vnet_hdr_len = READ_ONCE(q->vnet_hdr_sz);
 
 		err = -EINVAL;
 		if (len < vnet_hdr_len)
@@ -822,12 +822,12 @@ static ssize_t macvtap_put_user(struct m
 
 	if (q->flags & IFF_VNET_HDR) {
 		struct virtio_net_hdr vnet_hdr;
-		vnet_hdr_len = q->vnet_hdr_sz;
+		vnet_hdr_len = READ_ONCE(q->vnet_hdr_sz);
 		if (iov_iter_count(iter) < vnet_hdr_len)
 			return -EINVAL;
 
 		ret = virtio_net_hdr_from_skb(skb, &vnet_hdr,
-					      macvtap_is_little_endian(q));
+					      macvtap_is_little_endian(q), true);
 		if (ret)
 			BUG();
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/bcm63xx.c linux-libre-4.9.52-gnu/drivers/net/phy/bcm63xx.c
--- linux-libre-4.9-gnu/drivers/net/phy/bcm63xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/bcm63xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -21,6 +21,23 @@ MODULE_DESCRIPTION("Broadcom 63xx intern
 MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
 MODULE_LICENSE("GPL");
 
+static int bcm63xx_config_intr(struct phy_device *phydev)
+{
+	int reg, err;
+
+	reg = phy_read(phydev, MII_BCM63XX_IR);
+	if (reg < 0)
+		return reg;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+		reg &= ~MII_BCM63XX_IR_GMASK;
+	else
+		reg |= MII_BCM63XX_IR_GMASK;
+
+	err = phy_write(phydev, MII_BCM63XX_IR, reg);
+	return err;
+}
+
 static int bcm63xx_config_init(struct phy_device *phydev)
 {
 	int reg, err;
@@ -55,7 +72,7 @@ static struct phy_driver bcm63xx_driver[
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= bcm_phy_ack_intr,
-	.config_intr	= bcm_phy_config_intr,
+	.config_intr	= bcm63xx_config_intr,
 }, {
 	/* same phy as above, with just a different OUI */
 	.phy_id		= 0x002bdc00,
@@ -67,7 +84,7 @@ static struct phy_driver bcm63xx_driver[
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= bcm_phy_ack_intr,
-	.config_intr	= bcm_phy_config_intr,
+	.config_intr	= bcm63xx_config_intr,
 } };
 
 module_phy_driver(bcm63xx_driver);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/dp83640.c linux-libre-4.9.52-gnu/drivers/net/phy/dp83640.c
--- linux-libre-4.9-gnu/drivers/net/phy/dp83640.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/dp83640.c	2017-09-27 08:40:05.000000000 -0400
@@ -908,7 +908,7 @@ static void decode_txts(struct dp83640_p
 	if (overflow) {
 		pr_debug("tx timestamp queue overflow, count %d\n", overflow);
 		while (skb) {
-			skb_complete_tx_timestamp(skb, NULL);
+			kfree_skb(skb);
 			skb = skb_dequeue(&dp83640->tx_queue);
 		}
 		return;
@@ -1438,8 +1438,6 @@ static bool dp83640_rxtstamp(struct phy_
 		skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT;
 		skb_queue_tail(&dp83640->rx_queue, skb);
 		schedule_delayed_work(&dp83640->ts_work, SKB_TIMESTAMP_TIMEOUT);
-	} else {
-		netif_rx_ni(skb);
 	}
 
 	return true;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/dp83848.c linux-libre-4.9.52-gnu/drivers/net/phy/dp83848.c
--- linux-libre-4.9-gnu/drivers/net/phy/dp83848.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/dp83848.c	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,7 @@
 #include <linux/phy.h>
 
 #define TI_DP83848C_PHY_ID		0x20005ca0
+#define TI_DP83620_PHY_ID		0x20005ce0
 #define NS_DP83848C_PHY_ID		0x20005c90
 #define TLK10X_PHY_ID			0x2000a210
 #define TI_DP83822_PHY_ID		0x2000a240
@@ -77,6 +78,7 @@ static int dp83848_config_intr(struct ph
 static struct mdio_device_id __maybe_unused dp83848_tbl[] = {
 	{ TI_DP83848C_PHY_ID, 0xfffffff0 },
 	{ NS_DP83848C_PHY_ID, 0xfffffff0 },
+	{ TI_DP83620_PHY_ID, 0xfffffff0 },
 	{ TLK10X_PHY_ID, 0xfffffff0 },
 	{ TI_DP83822_PHY_ID, 0xfffffff0 },
 	{ }
@@ -106,6 +108,7 @@ MODULE_DEVICE_TABLE(mdio, dp83848_tbl);
 static struct phy_driver dp83848_driver[] = {
 	DP83848_PHY_DRIVER(TI_DP83848C_PHY_ID, "TI DP83848C 10/100 Mbps PHY"),
 	DP83848_PHY_DRIVER(NS_DP83848C_PHY_ID, "NS DP83848C 10/100 Mbps PHY"),
+	DP83848_PHY_DRIVER(TI_DP83620_PHY_ID, "TI DP83620 10/100 Mbps PHY"),
 	DP83848_PHY_DRIVER(TLK10X_PHY_ID, "TI TLK10X 10/100 Mbps PHY"),
 	DP83848_PHY_DRIVER(TI_DP83822_PHY_ID, "TI DP83822 10/100 Mbps PHY"),
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/dp83867.c linux-libre-4.9.52-gnu/drivers/net/phy/dp83867.c
--- linux-libre-4.9-gnu/drivers/net/phy/dp83867.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/dp83867.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,6 +29,7 @@
 #define MII_DP83867_MICR	0x12
 #define MII_DP83867_ISR		0x13
 #define DP83867_CTRL		0x1f
+#define DP83867_CFG3		0x1e
 
 /* Extended Registers */
 #define DP83867_RGMIICTL	0x0032
@@ -90,6 +91,8 @@ static int dp83867_config_intr(struct ph
 		micr_status |=
 			(MII_DP83867_MICR_AN_ERR_INT_EN |
 			MII_DP83867_MICR_SPEED_CHNG_INT_EN |
+			MII_DP83867_MICR_AUTONEG_COMP_INT_EN |
+			MII_DP83867_MICR_LINK_STS_CHNG_INT_EN |
 			MII_DP83867_MICR_DUP_MODE_CHNG_INT_EN |
 			MII_DP83867_MICR_SLEEP_MODE_CHNG_INT_EN);
 
@@ -113,12 +116,16 @@ static int dp83867_of_init(struct phy_de
 
 	ret = of_property_read_u32(of_node, "ti,rx-internal-delay",
 				   &dp83867->rx_id_delay);
-	if (ret)
+	if (ret &&
+	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+	     phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID))
 		return ret;
 
 	ret = of_property_read_u32(of_node, "ti,tx-internal-delay",
 				   &dp83867->tx_id_delay);
-	if (ret)
+	if (ret &&
+	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+	     phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID))
 		return ret;
 
 	return of_property_read_u32(of_node, "ti,fifo-depth",
@@ -186,6 +193,13 @@ static int dp83867_config_init(struct ph
 				       DP83867_DEVADDR, delay);
 	}
 
+	/* Enable Interrupt output INT_OE in CFG3 register */
+	if (phy_interrupt_is_valid(phydev)) {
+		val = phy_read(phydev, DP83867_CFG3);
+		val |= BIT(7);
+		phy_write(phydev, DP83867_CFG3, val);
+	}
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/marvell.c linux-libre-4.9.52-gnu/drivers/net/phy/marvell.c
--- linux-libre-4.9-gnu/drivers/net/phy/marvell.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/marvell.c	2017-09-27 08:40:05.000000000 -0400
@@ -240,34 +240,6 @@ static int marvell_config_aneg(struct ph
 {
 	int err;
 
-	/* The Marvell PHY has an errata which requires
-	 * that certain registers get written in order
-	 * to restart autonegotiation */
-	err = phy_write(phydev, MII_BMCR, BMCR_RESET);
-
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1d, 0x1f);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1e, 0x200c);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1d, 0x5);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1e, 0);
-	if (err < 0)
-		return err;
-
-	err = phy_write(phydev, 0x1e, 0x100);
-	if (err < 0)
-		return err;
-
 	err = marvell_set_polarity(phydev, phydev->mdix);
 	if (err < 0)
 		return err;
@@ -301,6 +273,42 @@ static int marvell_config_aneg(struct ph
 	return 0;
 }
 
+static int m88e1101_config_aneg(struct phy_device *phydev)
+{
+	int err;
+
+	/* This Marvell PHY has an errata which requires
+	 * that certain registers get written in order
+	 * to restart autonegotiation
+	 */
+	err = phy_write(phydev, MII_BMCR, BMCR_RESET);
+
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1d, 0x1f);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1e, 0x200c);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1d, 0x5);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1e, 0);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, 0x1e, 0x100);
+	if (err < 0)
+		return err;
+
+	return marvell_config_aneg(phydev);
+}
+
 static int m88e1111_config_aneg(struct phy_device *phydev)
 {
 	int err;
@@ -1106,8 +1114,6 @@ static int marvell_read_status_page(stru
 		if (adv < 0)
 			return adv;
 
-		lpa &= adv;
-
 		if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
 			phydev->duplex = DUPLEX_FULL;
 		else
@@ -1194,7 +1200,8 @@ static int marvell_read_status(struct ph
 	int err;
 
 	/* Check the fiber mode first */
-	if (phydev->supported & SUPPORTED_FIBRE) {
+	if (phydev->supported & SUPPORTED_FIBRE &&
+	    phydev->interface != PHY_INTERFACE_MODE_SGMII) {
 		err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
 		if (err < 0)
 			goto error;
@@ -1491,7 +1498,7 @@ static struct phy_driver marvell_drivers
 		.probe = marvell_probe,
 		.flags = PHY_HAS_INTERRUPT,
 		.config_init = &marvell_config_init,
-		.config_aneg = &marvell_config_aneg,
+		.config_aneg = &m88e1101_config_aneg,
 		.read_status = &genphy_read_status,
 		.ack_interrupt = &marvell_ack_interrupt,
 		.config_intr = &marvell_config_intr,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/mdio-bcm-iproc.c linux-libre-4.9.52-gnu/drivers/net/phy/mdio-bcm-iproc.c
--- linux-libre-4.9-gnu/drivers/net/phy/mdio-bcm-iproc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/mdio-bcm-iproc.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,8 +81,6 @@ static int iproc_mdio_read(struct mii_bu
 	if (rc)
 		return rc;
 
-	iproc_mdio_config_clk(priv->base);
-
 	/* Prepare the read operation */
 	cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
 		(reg << MII_DATA_RA_SHIFT) |
@@ -112,8 +110,6 @@ static int iproc_mdio_write(struct mii_b
 	if (rc)
 		return rc;
 
-	iproc_mdio_config_clk(priv->base);
-
 	/* Prepare the write operation */
 	cmd = (MII_DATA_TA_VAL << MII_DATA_TA_SHIFT) |
 		(reg << MII_DATA_RA_SHIFT) |
@@ -163,6 +159,8 @@ static int iproc_mdio_probe(struct platf
 	bus->read = iproc_mdio_read;
 	bus->write = iproc_mdio_write;
 
+	iproc_mdio_config_clk(priv->base);
+
 	rc = of_mdiobus_register(bus, pdev->dev.of_node);
 	if (rc) {
 		dev_err(&pdev->dev, "MDIO bus registration failed\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/mdio-mux-bcm-iproc.c linux-libre-4.9.52-gnu/drivers/net/phy/mdio-mux-bcm-iproc.c
--- linux-libre-4.9-gnu/drivers/net/phy/mdio-mux-bcm-iproc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/mdio-mux-bcm-iproc.c	2017-09-27 08:40:05.000000000 -0400
@@ -203,11 +203,14 @@ static int mdio_mux_iproc_probe(struct p
 			   &md->mux_handle, md, md->mii_bus);
 	if (rc) {
 		dev_info(md->dev, "mdiomux initialization failed\n");
-		goto out;
+		goto out_register;
 	}
 
 	dev_info(md->dev, "iProc mdiomux registered\n");
 	return 0;
+
+out_register:
+	mdiobus_unregister(bus);
 out:
 	mdiobus_free(bus);
 	return rc;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/micrel.c linux-libre-4.9.52-gnu/drivers/net/phy/micrel.c
--- linux-libre-4.9-gnu/drivers/net/phy/micrel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/micrel.c	2017-09-27 08:40:05.000000000 -0400
@@ -622,6 +622,8 @@ static int ksz9031_read_status(struct ph
 	if ((regval & 0xFF) == 0xFF) {
 		phy_init_hw(phydev);
 		phydev->link = 0;
+		if (phydev->drv->config_intr && phy_interrupt_is_valid(phydev))
+			phydev->drv->config_intr(phydev);
 	}
 
 	return 0;
@@ -1012,6 +1014,20 @@ static struct phy_driver ksphy_driver[]
 	.get_sset_count = kszphy_get_sset_count,
 	.get_strings	= kszphy_get_strings,
 	.get_stats	= kszphy_get_stats,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+}, {
+	.phy_id		= PHY_ID_KSZ8795,
+	.phy_id_mask	= MICREL_PHY_ID_MASK,
+	.name		= "Micrel KSZ8795",
+	.features	= (SUPPORTED_Pause | SUPPORTED_Asym_Pause),
+	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+	.config_init	= kszphy_config_init,
+	.config_aneg	= ksz8873mll_config_aneg,
+	.read_status	= ksz8873mll_read_status,
+	.get_sset_count = kszphy_get_sset_count,
+	.get_strings	= kszphy_get_strings,
+	.get_stats	= kszphy_get_stats,
 	.suspend	= genphy_suspend,
 	.resume		= genphy_resume,
 } };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/phy.c linux-libre-4.9.52-gnu/drivers/net/phy/phy.c
--- linux-libre-4.9-gnu/drivers/net/phy/phy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/phy.c	2017-09-27 08:40:05.000000000 -0400
@@ -552,16 +552,18 @@ int phy_mii_ioctl(struct phy_device *phy
 EXPORT_SYMBOL(phy_mii_ioctl);
 
 /**
- * phy_start_aneg - start auto-negotiation for this PHY device
+ * phy_start_aneg_priv - start auto-negotiation for this PHY device
  * @phydev: the phy_device struct
+ * @sync: indicate whether we should wait for the workqueue cancelation
  *
  * Description: Sanitizes the settings (if we're not autonegotiating
  *   them), and then calls the driver's config_aneg function.
  *   If the PHYCONTROL Layer is operating, we change the state to
  *   reflect the beginning of Auto-negotiation or forcing.
  */
-int phy_start_aneg(struct phy_device *phydev)
+static int phy_start_aneg_priv(struct phy_device *phydev, bool sync)
 {
+	bool trigger = 0;
 	int err;
 
 	mutex_lock(&phydev->lock);
@@ -586,10 +588,40 @@ int phy_start_aneg(struct phy_device *ph
 		}
 	}
 
+	/* Re-schedule a PHY state machine to check PHY status because
+	 * negotiation may already be done and aneg interrupt may not be
+	 * generated.
+	 */
+	if (phy_interrupt_is_valid(phydev) && (phydev->state == PHY_AN)) {
+		err = phy_aneg_done(phydev);
+		if (err > 0) {
+			trigger = true;
+			err = 0;
+		}
+	}
+
 out_unlock:
 	mutex_unlock(&phydev->lock);
+
+	if (trigger)
+		phy_trigger_machine(phydev, sync);
+
 	return err;
 }
+
+/**
+ * phy_start_aneg - start auto-negotiation for this PHY device
+ * @phydev: the phy_device struct
+ *
+ * Description: Sanitizes the settings (if we're not autonegotiating
+ *   them), and then calls the driver's config_aneg function.
+ *   If the PHYCONTROL Layer is operating, we change the state to
+ *   reflect the beginning of Auto-negotiation or forcing.
+ */
+int phy_start_aneg(struct phy_device *phydev)
+{
+	return phy_start_aneg_priv(phydev, true);
+}
 EXPORT_SYMBOL(phy_start_aneg);
 
 /**
@@ -611,14 +643,18 @@ void phy_start_machine(struct phy_device
  * phy_trigger_machine - trigger the state machine to run
  *
  * @phydev: the phy_device struct
+ * @sync: indicate whether we should wait for the workqueue cancelation
  *
  * Description: There has been a change in state which requires that the
  *   state machine runs.
  */
 
-static void phy_trigger_machine(struct phy_device *phydev)
+void phy_trigger_machine(struct phy_device *phydev, bool sync)
 {
-	cancel_delayed_work_sync(&phydev->state_queue);
+	if (sync)
+		cancel_delayed_work_sync(&phydev->state_queue);
+	else
+		cancel_delayed_work(&phydev->state_queue);
 	queue_delayed_work(system_power_efficient_wq, &phydev->state_queue, 0);
 }
 
@@ -635,7 +671,7 @@ void phy_stop_machine(struct phy_device
 	cancel_delayed_work_sync(&phydev->state_queue);
 
 	mutex_lock(&phydev->lock);
-	if (phydev->state > PHY_UP)
+	if (phydev->state > PHY_UP && phydev->state != PHY_HALTED)
 		phydev->state = PHY_UP;
 	mutex_unlock(&phydev->lock);
 }
@@ -655,7 +691,7 @@ static void phy_error(struct phy_device
 	phydev->state = PHY_HALTED;
 	mutex_unlock(&phydev->lock);
 
-	phy_trigger_machine(phydev);
+	phy_trigger_machine(phydev, false);
 }
 
 /**
@@ -817,7 +853,7 @@ void phy_change(struct work_struct *work
 	}
 
 	/* reschedule state queue work to run as soon as possible */
-	phy_trigger_machine(phydev);
+	phy_trigger_machine(phydev, true);
 	return;
 
 ignore:
@@ -907,7 +943,7 @@ void phy_start(struct phy_device *phydev
 	if (do_resume)
 		phy_resume(phydev);
 
-	phy_trigger_machine(phydev);
+	phy_trigger_machine(phydev, true);
 }
 EXPORT_SYMBOL(phy_start);
 
@@ -1024,6 +1060,15 @@ void phy_state_machine(struct work_struc
 			if (old_link != phydev->link)
 				phydev->state = PHY_CHANGELINK;
 		}
+		/*
+		 * Failsafe: check that nobody set phydev->link=0 between two
+		 * poll cycles, otherwise we won't leave RUNNING state as long
+		 * as link remains down.
+		 */
+		if (!phydev->link && phydev->state == PHY_RUNNING) {
+			phydev->state = PHY_CHANGELINK;
+			phydev_err(phydev, "no link in PHY_RUNNING\n");
+		}
 		break;
 	case PHY_CHANGELINK:
 		err = phy_read_status(phydev);
@@ -1096,7 +1141,7 @@ void phy_state_machine(struct work_struc
 	mutex_unlock(&phydev->lock);
 
 	if (needs_aneg)
-		err = phy_start_aneg(phydev);
+		err = phy_start_aneg_priv(phydev, false);
 	else if (do_suspend)
 		phy_suspend(phydev);
 
@@ -1348,6 +1393,9 @@ int phy_ethtool_set_eee(struct phy_devic
 {
 	int val = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
 
+	/* Mask prohibited EEE modes */
+	val &= ~phydev->eee_broken_modes;
+
 	phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, val);
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/phy/phy_device.c linux-libre-4.9.52-gnu/drivers/net/phy/phy_device.c
--- linux-libre-4.9-gnu/drivers/net/phy/phy_device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/phy/phy_device.c	2017-09-27 08:40:05.000000000 -0400
@@ -860,6 +860,7 @@ int phy_attach_direct(struct net_device
 	struct module *ndev_owner = dev->dev.parent->driver->owner;
 	struct mii_bus *bus = phydev->mdio.bus;
 	struct device *d = &phydev->mdio.dev;
+	bool using_genphy = false;
 	int err;
 
 	/* For Ethernet device drivers that register their own MDIO bus, we
@@ -885,12 +886,22 @@ int phy_attach_direct(struct net_device
 			d->driver =
 				&genphy_driver[GENPHY_DRV_1G].mdiodrv.driver;
 
+		using_genphy = true;
+	}
+
+	if (!try_module_get(d->driver->owner)) {
+		dev_err(&dev->dev, "failed to get the device driver module\n");
+		err = -EIO;
+		goto error_put_device;
+	}
+
+	if (using_genphy) {
 		err = d->driver->probe(d);
 		if (err >= 0)
 			err = device_bind_driver(d);
 
 		if (err)
-			goto error;
+			goto error_module_put;
 	}
 
 	if (phydev->attached_dev) {
@@ -926,6 +937,13 @@ int phy_attach_direct(struct net_device
 	return err;
 
 error:
+	/* phy_detach() does all of the cleanup below */
+	phy_detach(phydev);
+	return err;
+
+error_module_put:
+	module_put(d->driver->owner);
+error_put_device:
 	put_device(d);
 	if (ndev_owner != bus->owner)
 		module_put(bus->owner);
@@ -987,6 +1005,8 @@ void phy_detach(struct phy_device *phyde
 	phydev->attached_dev = NULL;
 	phy_suspend(phydev);
 
+	module_put(phydev->mdio.dev.driver->owner);
+
 	/* If the device had no specific driver before (i.e. - it
 	 * was using the generic driver), we unbind the device
 	 * from the generic driver so that there's a chance a
@@ -1126,6 +1146,43 @@ static int genphy_config_advert(struct p
 }
 
 /**
+ * genphy_config_eee_advert - disable unwanted eee mode advertisement
+ * @phydev: target phy_device struct
+ *
+ * Description: Writes MDIO_AN_EEE_ADV after disabling unsupported energy
+ *   efficent ethernet modes. Returns 0 if the PHY's advertisement hasn't
+ *   changed, and 1 if it has changed.
+ */
+static int genphy_config_eee_advert(struct phy_device *phydev)
+{
+	int broken = phydev->eee_broken_modes;
+	int old_adv, adv;
+
+	/* Nothing to disable */
+	if (!broken)
+		return 0;
+
+	/* If the following call fails, we assume that EEE is not
+	 * supported by the phy. If we read 0, EEE is not advertised
+	 * In both case, we don't need to continue
+	 */
+	adv = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN);
+	if (adv <= 0)
+		return 0;
+
+	old_adv = adv;
+	adv &= ~broken;
+
+	/* Advertising remains unchanged with the broken mask */
+	if (old_adv == adv)
+		return 0;
+
+	phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, adv);
+
+	return 1;
+}
+
+/**
  * genphy_setup_forced - configures/forces speed/duplex from @phydev
  * @phydev: target phy_device struct
  *
@@ -1183,15 +1240,20 @@ EXPORT_SYMBOL(genphy_restart_aneg);
  */
 int genphy_config_aneg(struct phy_device *phydev)
 {
-	int result;
+	int err, changed;
+
+	changed = genphy_config_eee_advert(phydev);
 
 	if (AUTONEG_ENABLE != phydev->autoneg)
 		return genphy_setup_forced(phydev);
 
-	result = genphy_config_advert(phydev);
-	if (result < 0) /* error */
-		return result;
-	if (result == 0) {
+	err = genphy_config_advert(phydev);
+	if (err < 0) /* error */
+		return err;
+
+	changed |= err;
+
+	if (changed == 0) {
 		/* Advertisement hasn't changed, but maybe aneg was never on to
 		 * begin with?  Or maybe phy was isolated?
 		 */
@@ -1201,16 +1263,16 @@ int genphy_config_aneg(struct phy_device
 			return ctl;
 
 		if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
-			result = 1; /* do restart aneg */
+			changed = 1; /* do restart aneg */
 	}
 
 	/* Only restart aneg if we are advertising something different
 	 * than we were before.
 	 */
-	if (result > 0)
-		result = genphy_restart_aneg(phydev);
+	if (changed > 0)
+		return genphy_restart_aneg(phydev);
 
-	return result;
+	return 0;
 }
 EXPORT_SYMBOL(genphy_config_aneg);
 
@@ -1568,6 +1630,33 @@ static void of_set_phy_supported(struct
 		__set_phy_supported(phydev, max_speed);
 }
 
+static void of_set_phy_eee_broken(struct phy_device *phydev)
+{
+	struct device_node *node = phydev->mdio.dev.of_node;
+	u32 broken = 0;
+
+	if (!IS_ENABLED(CONFIG_OF_MDIO))
+		return;
+
+	if (!node)
+		return;
+
+	if (of_property_read_bool(node, "eee-broken-100tx"))
+		broken |= MDIO_EEE_100TX;
+	if (of_property_read_bool(node, "eee-broken-1000t"))
+		broken |= MDIO_EEE_1000T;
+	if (of_property_read_bool(node, "eee-broken-10gt"))
+		broken |= MDIO_EEE_10GT;
+	if (of_property_read_bool(node, "eee-broken-1000kx"))
+		broken |= MDIO_EEE_1000KX;
+	if (of_property_read_bool(node, "eee-broken-10gkx4"))
+		broken |= MDIO_EEE_10GKX4;
+	if (of_property_read_bool(node, "eee-broken-10gkr"))
+		broken |= MDIO_EEE_10GKR;
+
+	phydev->eee_broken_modes = broken;
+}
+
 /**
  * phy_probe - probe and init a PHY device
  * @dev: device to probe and init
@@ -1605,6 +1694,11 @@ static int phy_probe(struct device *dev)
 	of_set_phy_supported(phydev);
 	phydev->advertising = phydev->supported;
 
+	/* Get the EEE modes we want to prohibit. We will ask
+	 * the PHY stop advertising these mode later on
+	 */
+	of_set_phy_eee_broken(phydev);
+
 	/* Set the state to READY by default */
 	phydev->state = PHY_READY;
 
@@ -1620,6 +1714,8 @@ static int phy_remove(struct device *dev
 {
 	struct phy_device *phydev = to_phy_device(dev);
 
+	cancel_delayed_work_sync(&phydev->state_queue);
+
 	mutex_lock(&phydev->lock);
 	phydev->state = PHY_DOWN;
 	mutex_unlock(&phydev->lock);
@@ -1698,7 +1794,7 @@ static struct phy_driver genphy_driver[]
 	.phy_id		= 0xffffffff,
 	.phy_id_mask	= 0xffffffff,
 	.name		= "Generic PHY",
-	.soft_reset	= genphy_soft_reset,
+	.soft_reset	= genphy_no_soft_reset,
 	.config_init	= genphy_config_init,
 	.features	= PHY_GBIT_FEATURES | SUPPORTED_MII |
 			  SUPPORTED_AUI | SUPPORTED_FIBRE |
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/ppp/ppp_generic.c linux-libre-4.9.52-gnu/drivers/net/ppp/ppp_generic.c
--- linux-libre-4.9-gnu/drivers/net/ppp/ppp_generic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/ppp/ppp_generic.c	2017-09-27 08:40:05.000000000 -0400
@@ -119,6 +119,7 @@ struct ppp {
 	int		n_channels;	/* how many channels are attached 54 */
 	spinlock_t	rlock;		/* lock for receive side 58 */
 	spinlock_t	wlock;		/* lock for transmit side 5c */
+	int		*xmit_recursion __percpu; /* xmit recursion detect */
 	int		mru;		/* max receive unit 60 */
 	unsigned int	flags;		/* control bits 64 */
 	unsigned int	xstate;		/* transmit state bits 68 */
@@ -1024,6 +1025,7 @@ static int ppp_dev_configure(struct net
 	struct ppp *ppp = netdev_priv(dev);
 	int indx;
 	int err;
+	int cpu;
 
 	ppp->dev = dev;
 	ppp->ppp_net = src_net;
@@ -1038,6 +1040,15 @@ static int ppp_dev_configure(struct net
 	INIT_LIST_HEAD(&ppp->channels);
 	spin_lock_init(&ppp->rlock);
 	spin_lock_init(&ppp->wlock);
+
+	ppp->xmit_recursion = alloc_percpu(int);
+	if (!ppp->xmit_recursion) {
+		err = -ENOMEM;
+		goto err1;
+	}
+	for_each_possible_cpu(cpu)
+		(*per_cpu_ptr(ppp->xmit_recursion, cpu)) = 0;
+
 #ifdef CONFIG_PPP_MULTILINK
 	ppp->minseq = -1;
 	skb_queue_head_init(&ppp->mrq);
@@ -1049,11 +1060,15 @@ static int ppp_dev_configure(struct net
 
 	err = ppp_unit_register(ppp, conf->unit, conf->ifname_is_set);
 	if (err < 0)
-		return err;
+		goto err2;
 
 	conf->file->private_data = &ppp->file;
 
 	return 0;
+err2:
+	free_percpu(ppp->xmit_recursion);
+err1:
+	return err;
 }
 
 static const struct nla_policy ppp_nl_policy[IFLA_PPP_MAX + 1] = {
@@ -1399,18 +1414,16 @@ static void __ppp_xmit_process(struct pp
 	ppp_xmit_unlock(ppp);
 }
 
-static DEFINE_PER_CPU(int, ppp_xmit_recursion);
-
 static void ppp_xmit_process(struct ppp *ppp)
 {
 	local_bh_disable();
 
-	if (unlikely(__this_cpu_read(ppp_xmit_recursion)))
+	if (unlikely(*this_cpu_ptr(ppp->xmit_recursion)))
 		goto err;
 
-	__this_cpu_inc(ppp_xmit_recursion);
+	(*this_cpu_ptr(ppp->xmit_recursion))++;
 	__ppp_xmit_process(ppp);
-	__this_cpu_dec(ppp_xmit_recursion);
+	(*this_cpu_ptr(ppp->xmit_recursion))--;
 
 	local_bh_enable();
 
@@ -1901,23 +1914,23 @@ static void __ppp_channel_push(struct ch
 	spin_unlock_bh(&pch->downl);
 	/* see if there is anything from the attached unit to be sent */
 	if (skb_queue_empty(&pch->file.xq)) {
-		read_lock_bh(&pch->upl);
 		ppp = pch->ppp;
 		if (ppp)
 			__ppp_xmit_process(ppp);
-		read_unlock_bh(&pch->upl);
 	}
 }
 
 static void ppp_channel_push(struct channel *pch)
 {
-	local_bh_disable();
-
-	__this_cpu_inc(ppp_xmit_recursion);
-	__ppp_channel_push(pch);
-	__this_cpu_dec(ppp_xmit_recursion);
-
-	local_bh_enable();
+	read_lock_bh(&pch->upl);
+	if (pch->ppp) {
+		(*this_cpu_ptr(pch->ppp->xmit_recursion))++;
+		__ppp_channel_push(pch);
+		(*this_cpu_ptr(pch->ppp->xmit_recursion))--;
+	} else {
+		__ppp_channel_push(pch);
+	}
+	read_unlock_bh(&pch->upl);
 }
 
 /*
@@ -3056,6 +3069,7 @@ static void ppp_destroy_interface(struct
 #endif /* CONFIG_PPP_FILTER */
 
 	kfree_skb(ppp->xmit_pending);
+	free_percpu(ppp->xmit_recursion);
 
 	free_netdev(ppp->dev);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/tun.c linux-libre-4.9.52-gnu/drivers/net/tun.c
--- linux-libre-4.9-gnu/drivers/net/tun.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/tun.c	2017-09-27 08:40:05.000000000 -0400
@@ -819,7 +819,18 @@ static void tun_net_uninit(struct net_de
 /* Net device open. */
 static int tun_net_open(struct net_device *dev)
 {
+	struct tun_struct *tun = netdev_priv(dev);
+	int i;
+
 	netif_tx_start_all_queues(dev);
+
+	for (i = 0; i < tun->numqueues; i++) {
+		struct tun_file *tfile;
+
+		tfile = rtnl_dereference(tun->tfiles[i]);
+		tfile->socket.sk->sk_write_space(tfile->socket.sk);
+	}
+
 	return 0;
 }
 
@@ -1116,9 +1127,10 @@ static unsigned int tun_chr_poll(struct
 	if (!skb_array_empty(&tfile->tx_array))
 		mask |= POLLIN | POLLRDNORM;
 
-	if (sock_writeable(sk) ||
-	    (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
-	     sock_writeable(sk)))
+	if (tun->dev->flags & IFF_UP &&
+	    (sock_writeable(sk) ||
+	     (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) &&
+	      sock_writeable(sk))))
 		mask |= POLLOUT | POLLWRNORM;
 
 	if (tun->dev->reg_state != NETREG_REGISTERED)
@@ -1187,9 +1199,11 @@ static ssize_t tun_get_user(struct tun_s
 	}
 
 	if (tun->flags & IFF_VNET_HDR) {
-		if (len < tun->vnet_hdr_sz)
+		int vnet_hdr_sz = READ_ONCE(tun->vnet_hdr_sz);
+
+		if (len < vnet_hdr_sz)
 			return -EINVAL;
-		len -= tun->vnet_hdr_sz;
+		len -= vnet_hdr_sz;
 
 		n = copy_from_iter(&gso, sizeof(gso), from);
 		if (n != sizeof(gso))
@@ -1201,7 +1215,7 @@ static ssize_t tun_get_user(struct tun_s
 
 		if (tun16_to_cpu(tun, gso.hdr_len) > len)
 			return -EINVAL;
-		iov_iter_advance(from, tun->vnet_hdr_sz - sizeof(gso));
+		iov_iter_advance(from, vnet_hdr_sz - sizeof(gso));
 	}
 
 	if ((tun->flags & TUN_TYPE_MASK) == IFF_TAP) {
@@ -1348,7 +1362,7 @@ static ssize_t tun_put_user(struct tun_s
 		vlan_hlen = VLAN_HLEN;
 
 	if (tun->flags & IFF_VNET_HDR)
-		vnet_hdr_sz = tun->vnet_hdr_sz;
+		vnet_hdr_sz = READ_ONCE(tun->vnet_hdr_sz);
 
 	total = skb->len + vlan_hlen + vnet_hdr_sz;
 
@@ -1374,7 +1388,7 @@ static ssize_t tun_put_user(struct tun_s
 			return -EINVAL;
 
 		ret = virtio_net_hdr_from_skb(skb, &gso,
-					      tun_is_little_endian(tun));
+					      tun_is_little_endian(tun), true);
 		if (ret) {
 			struct skb_shared_info *sinfo = skb_shinfo(skb);
 			pr_err("unexpected GSO type: "
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/asix_devices.c linux-libre-4.9.52-gnu/drivers/net/usb/asix_devices.c
--- linux-libre-4.9-gnu/drivers/net/usb/asix_devices.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/asix_devices.c	2017-09-27 08:40:05.000000000 -0400
@@ -1369,6 +1369,7 @@ static struct usb_driver asix_driver = {
 	.probe =	usbnet_probe,
 	.suspend =	asix_suspend,
 	.resume =	asix_resume,
+	.reset_resume =	asix_resume,
 	.disconnect =	usbnet_disconnect,
 	.supports_autosuspend = 1,
 	.disable_hub_initiated_lpm = 1,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/catc.c linux-libre-4.9.52-gnu/drivers/net/usb/catc.c
--- linux-libre-4.9-gnu/drivers/net/usb/catc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/catc.c	2017-09-27 08:40:05.000000000 -0400
@@ -777,7 +777,7 @@ static int catc_probe(struct usb_interfa
 	struct net_device *netdev;
 	struct catc *catc;
 	u8 broadcast[ETH_ALEN];
-	int i, pktsz;
+	int pktsz, ret;
 
 	if (usb_set_interface(usbdev,
 			intf->altsetting->desc.bInterfaceNumber, 1)) {
@@ -812,12 +812,8 @@ static int catc_probe(struct usb_interfa
 	if ((!catc->ctrl_urb) || (!catc->tx_urb) || 
 	    (!catc->rx_urb) || (!catc->irq_urb)) {
 		dev_err(&intf->dev, "No free urbs available.\n");
-		usb_free_urb(catc->ctrl_urb);
-		usb_free_urb(catc->tx_urb);
-		usb_free_urb(catc->rx_urb);
-		usb_free_urb(catc->irq_urb);
-		free_netdev(netdev);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto fail_free;
 	}
 
 	/* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
@@ -845,15 +841,24 @@ static int catc_probe(struct usb_interfa
                 catc->irq_buf, 2, catc_irq_done, catc, 1);
 
 	if (!catc->is_f5u011) {
+		u32 *buf;
+		int i;
+
 		dev_dbg(dev, "Checking memory size\n");
 
-		i = 0x12345678;
-		catc_write_mem(catc, 0x7a80, &i, 4);
-		i = 0x87654321;	
-		catc_write_mem(catc, 0xfa80, &i, 4);
-		catc_read_mem(catc, 0x7a80, &i, 4);
+		buf = kmalloc(4, GFP_KERNEL);
+		if (!buf) {
+			ret = -ENOMEM;
+			goto fail_free;
+		}
+
+		*buf = 0x12345678;
+		catc_write_mem(catc, 0x7a80, buf, 4);
+		*buf = 0x87654321;
+		catc_write_mem(catc, 0xfa80, buf, 4);
+		catc_read_mem(catc, 0x7a80, buf, 4);
 	  
-		switch (i) {
+		switch (*buf) {
 		case 0x12345678:
 			catc_set_reg(catc, TxBufCount, 8);
 			catc_set_reg(catc, RxBufCount, 32);
@@ -868,6 +873,8 @@ static int catc_probe(struct usb_interfa
 			dev_dbg(dev, "32k Memory\n");
 			break;
 		}
+
+		kfree(buf);
 	  
 		dev_dbg(dev, "Getting MAC from SEEROM.\n");
 	  
@@ -914,16 +921,21 @@ static int catc_probe(struct usb_interfa
 	usb_set_intfdata(intf, catc);
 
 	SET_NETDEV_DEV(netdev, &intf->dev);
-	if (register_netdev(netdev) != 0) {
-		usb_set_intfdata(intf, NULL);
-		usb_free_urb(catc->ctrl_urb);
-		usb_free_urb(catc->tx_urb);
-		usb_free_urb(catc->rx_urb);
-		usb_free_urb(catc->irq_urb);
-		free_netdev(netdev);
-		return -EIO;
-	}
+	ret = register_netdev(netdev);
+	if (ret)
+		goto fail_clear_intfdata;
+
 	return 0;
+
+fail_clear_intfdata:
+	usb_set_intfdata(intf, NULL);
+fail_free:
+	usb_free_urb(catc->ctrl_urb);
+	usb_free_urb(catc->tx_urb);
+	usb_free_urb(catc->rx_urb);
+	usb_free_urb(catc->irq_urb);
+	free_netdev(netdev);
+	return ret;
 }
 
 static void catc_disconnect(struct usb_interface *intf)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/cdc_ether.c linux-libre-4.9.52-gnu/drivers/net/usb/cdc_ether.c
--- linux-libre-4.9-gnu/drivers/net/usb/cdc_ether.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/cdc_ether.c	2017-09-27 08:40:05.000000000 -0400
@@ -531,6 +531,7 @@ static const struct driver_info wwan_inf
 #define SAMSUNG_VENDOR_ID	0x04e8
 #define LENOVO_VENDOR_ID	0x17ef
 #define NVIDIA_VENDOR_ID	0x0955
+#define HP_VENDOR_ID		0x03f0
 
 static const struct usb_device_id	products[] = {
 /* BLACKLIST !!
@@ -677,6 +678,13 @@ static const struct usb_device_id	produc
 	.driver_info = 0,
 },
 
+/* HP lt2523 (Novatel E371) - handled by qmi_wwan */
+{
+	USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
+				      USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info = 0,
+},
+
 /* AnyDATA ADU960S - handled by qmi_wwan */
 {
 	USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/pegasus.c linux-libre-4.9.52-gnu/drivers/net/usb/pegasus.c
--- linux-libre-4.9-gnu/drivers/net/usb/pegasus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/pegasus.c	2017-09-27 08:40:05.000000000 -0400
@@ -126,40 +126,61 @@ static void async_ctrl_callback(struct u
 
 static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
 {
+	u8 *buf;
 	int ret;
 
+	buf = kmalloc(size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
 	ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
 			      PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
-			      indx, data, size, 1000);
+			      indx, buf, size, 1000);
 	if (ret < 0)
 		netif_dbg(pegasus, drv, pegasus->net,
 			  "%s returned %d\n", __func__, ret);
+	else if (ret <= size)
+		memcpy(data, buf, ret);
+	kfree(buf);
 	return ret;
 }
 
-static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
+static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
+			 const void *data)
 {
+	u8 *buf;
 	int ret;
 
+	buf = kmemdup(data, size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
 	ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
 			      PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
-			      indx, data, size, 100);
+			      indx, buf, size, 100);
 	if (ret < 0)
 		netif_dbg(pegasus, drv, pegasus->net,
 			  "%s returned %d\n", __func__, ret);
+	kfree(buf);
 	return ret;
 }
 
 static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
 {
+	u8 *buf;
 	int ret;
 
+	buf = kmemdup(&data, 1, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
 	ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
 			      PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
-			      indx, &data, 1, 1000);
+			      indx, buf, 1, 1000);
 	if (ret < 0)
 		netif_dbg(pegasus, drv, pegasus->net,
 			  "%s returned %d\n", __func__, ret);
+	kfree(buf);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/qmi_wwan.c linux-libre-4.9.52-gnu/drivers/net/usb/qmi_wwan.c
--- linux-libre-4.9-gnu/drivers/net/usb/qmi_wwan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/qmi_wwan.c	2017-09-27 08:40:05.000000000 -0400
@@ -654,6 +654,13 @@ static const struct usb_device_id produc
 					      USB_CDC_PROTO_NONE),
 		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
+	{	/* HP lt2523 (Novatel E371) */
+		USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d,
+					      USB_CLASS_COMM,
+					      USB_CDC_SUBCLASS_ETHERNET,
+					      USB_CDC_PROTO_NONE),
+		.driver_info        = (unsigned long)&qmi_wwan_info,
+	},
 	{	/* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
 		USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
 		.driver_info = (unsigned long)&qmi_wwan_info,
@@ -869,6 +876,7 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x19d2, 0x1428, 2)},	/* Telewell TW-LTE 4G v2 */
 	{QMI_FIXED_INTF(0x19d2, 0x2002, 4)},	/* ZTE (Vodafone) K3765-Z */
 	{QMI_FIXED_INTF(0x2001, 0x7e19, 4)},	/* D-Link DWM-221 B1 */
+	{QMI_FIXED_INTF(0x2001, 0x7e35, 4)},	/* D-Link DWM-222 */
 	{QMI_FIXED_INTF(0x0f3d, 0x68a2, 8)},    /* Sierra Wireless MC7700 */
 	{QMI_FIXED_INTF(0x114f, 0x68a2, 8)},    /* Sierra Wireless MC7750 */
 	{QMI_FIXED_INTF(0x1199, 0x68a2, 8)},	/* Sierra Wireless MC7710 in QMI mode */
@@ -890,11 +898,14 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x1199, 0x9071, 10)},	/* Sierra Wireless MC74xx */
 	{QMI_FIXED_INTF(0x1199, 0x9079, 8)},	/* Sierra Wireless EM74xx */
 	{QMI_FIXED_INTF(0x1199, 0x9079, 10)},	/* Sierra Wireless EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x907b, 8)},	/* Sierra Wireless EM74xx */
+	{QMI_FIXED_INTF(0x1199, 0x907b, 10)},	/* Sierra Wireless EM74xx */
 	{QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},	/* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
 	{QMI_FIXED_INTF(0x1bbb, 0x0203, 2)},	/* Alcatel L800MA */
 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
 	{QMI_FIXED_INTF(0x2357, 0x9000, 4)},	/* TP-LINK MA260 */
 	{QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)},	/* Telit LE922A */
+	{QMI_FIXED_INTF(0x1bc7, 0x1100, 3)},	/* Telit ME910 */
 	{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},	/* Telit LE920 */
 	{QMI_FIXED_INTF(0x1bc7, 0x1201, 2)},	/* Telit LE920 */
 	{QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)},	/* XS Stick W100-2 from 4G Systems */
@@ -917,6 +928,8 @@ static const struct usb_device_id produc
 	{QMI_FIXED_INTF(0x413c, 0x81a9, 8)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81b1, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81b3, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
+	{QMI_FIXED_INTF(0x413c, 0x81b6, 8)},	/* Dell Wireless 5811e */
+	{QMI_FIXED_INTF(0x413c, 0x81b6, 10)},	/* Dell Wireless 5811e */
 	{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
 	{QMI_FIXED_INTF(0x22de, 0x9061, 3)},	/* WeTelecom WPD-600N */
 	{QMI_FIXED_INTF(0x1e0e, 0x9001, 5)},	/* SIMCom 7230E */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/r8152.c linux-libre-4.9.52-gnu/drivers/net/usb/r8152.c
--- linux-libre-4.9-gnu/drivers/net/usb/r8152.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/r8152.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,7 +32,7 @@
 #define NETNEXT_VERSION		"08"
 
 /* Information for net */
-#define NET_VERSION		"6"
+#define NET_VERSION		"8"
 
 #define DRIVER_VERSION		"v1." NETNEXT_VERSION "." NET_VERSION
 #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
@@ -1730,7 +1730,7 @@ static u8 r8152_rx_csum(struct r8152 *tp
 	u8 checksum = CHECKSUM_NONE;
 	u32 opts2, opts3;
 
-	if (tp->version == RTL_VER_01 || tp->version == RTL_VER_02)
+	if (!(tp->netdev->features & NETIF_F_RXCSUM))
 		goto return_result;
 
 	opts2 = le32_to_cpu(rx_desc->opts2);
@@ -1936,6 +1936,9 @@ static int r8152_poll(struct napi_struct
 		napi_complete(napi);
 		if (!list_empty(&tp->rx_done))
 			napi_schedule(napi);
+		else if (!skb_queue_empty(&tp->tx_queue) &&
+			 !list_empty(&tp->tx_free))
+			napi_schedule(napi);
 	}
 
 	return work_done;
@@ -3155,10 +3158,13 @@ static void set_carrier(struct r8152 *tp
 		if (!netif_carrier_ok(netdev)) {
 			tp->rtl_ops.enable(tp);
 			set_bit(RTL8152_SET_RX_MODE, &tp->flags);
+			netif_stop_queue(netdev);
 			napi_disable(&tp->napi);
 			netif_carrier_on(netdev);
 			rtl_start_rx(tp);
 			napi_enable(&tp->napi);
+			netif_wake_queue(netdev);
+			netif_info(tp, link, netdev, "carrier on\n");
 		}
 	} else {
 		if (netif_carrier_ok(netdev)) {
@@ -3166,6 +3172,7 @@ static void set_carrier(struct r8152 *tp
 			napi_disable(&tp->napi);
 			tp->rtl_ops.disable(tp);
 			napi_enable(&tp->napi);
+			netif_info(tp, link, netdev, "carrier off\n");
 		}
 	}
 }
@@ -3515,12 +3522,12 @@ static int rtl8152_pre_reset(struct usb_
 	if (!netif_running(netdev))
 		return 0;
 
+	netif_stop_queue(netdev);
 	napi_disable(&tp->napi);
 	clear_bit(WORK_ENABLE, &tp->flags);
 	usb_kill_urb(tp->intr_urb);
 	cancel_delayed_work_sync(&tp->schedule);
 	if (netif_carrier_ok(netdev)) {
-		netif_stop_queue(netdev);
 		mutex_lock(&tp->control);
 		tp->rtl_ops.disable(tp);
 		mutex_unlock(&tp->control);
@@ -3545,12 +3552,17 @@ static int rtl8152_post_reset(struct usb
 	if (netif_carrier_ok(netdev)) {
 		mutex_lock(&tp->control);
 		tp->rtl_ops.enable(tp);
+		rtl_start_rx(tp);
 		rtl8152_set_rx_mode(netdev);
 		mutex_unlock(&tp->control);
-		netif_wake_queue(netdev);
 	}
 
 	napi_enable(&tp->napi);
+	netif_wake_queue(netdev);
+	usb_submit_urb(tp->intr_urb, GFP_KERNEL);
+
+	if (!list_empty(&tp->rx_done))
+		napi_schedule(&tp->napi);
 
 	return 0;
 }
@@ -3572,43 +3584,98 @@ static bool delay_autosuspend(struct r81
 	 */
 	if (!sw_linking && tp->rtl_ops.in_nway(tp))
 		return true;
+	else if (!skb_queue_empty(&tp->tx_queue))
+		return true;
 	else
 		return false;
 }
 
-static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
+static int rtl8152_rumtime_suspend(struct r8152 *tp)
 {
-	struct r8152 *tp = usb_get_intfdata(intf);
 	struct net_device *netdev = tp->netdev;
 	int ret = 0;
 
-	mutex_lock(&tp->control);
+	set_bit(SELECTIVE_SUSPEND, &tp->flags);
+	smp_mb__after_atomic();
 
-	if (PMSG_IS_AUTO(message)) {
-		if (netif_running(netdev) && delay_autosuspend(tp)) {
+	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
+		u32 rcr = 0;
+
+		if (delay_autosuspend(tp)) {
+			clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+			smp_mb__after_atomic();
 			ret = -EBUSY;
 			goto out1;
 		}
 
-		set_bit(SELECTIVE_SUSPEND, &tp->flags);
-	} else {
-		netif_device_detach(netdev);
+		if (netif_carrier_ok(netdev)) {
+			u32 ocp_data;
+
+			rcr = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
+			ocp_data = rcr & ~RCR_ACPT_ALL;
+			ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
+			rxdy_gated_en(tp, true);
+			ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA,
+						 PLA_OOB_CTRL);
+			if (!(ocp_data & RXFIFO_EMPTY)) {
+				rxdy_gated_en(tp, false);
+				ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
+				clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+				smp_mb__after_atomic();
+				ret = -EBUSY;
+				goto out1;
+			}
+		}
+
+		clear_bit(WORK_ENABLE, &tp->flags);
+		usb_kill_urb(tp->intr_urb);
+
+		tp->rtl_ops.autosuspend_en(tp, true);
+
+		if (netif_carrier_ok(netdev)) {
+			napi_disable(&tp->napi);
+			rtl_stop_rx(tp);
+			rxdy_gated_en(tp, false);
+			ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, rcr);
+			napi_enable(&tp->napi);
+		}
 	}
 
+out1:
+	return ret;
+}
+
+static int rtl8152_system_suspend(struct r8152 *tp)
+{
+	struct net_device *netdev = tp->netdev;
+	int ret = 0;
+
+	netif_device_detach(netdev);
+
 	if (netif_running(netdev) && test_bit(WORK_ENABLE, &tp->flags)) {
 		clear_bit(WORK_ENABLE, &tp->flags);
 		usb_kill_urb(tp->intr_urb);
 		napi_disable(&tp->napi);
-		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
-			rtl_stop_rx(tp);
-			tp->rtl_ops.autosuspend_en(tp, true);
-		} else {
-			cancel_delayed_work_sync(&tp->schedule);
-			tp->rtl_ops.down(tp);
-		}
+		cancel_delayed_work_sync(&tp->schedule);
+		tp->rtl_ops.down(tp);
 		napi_enable(&tp->napi);
 	}
-out1:
+
+	return ret;
+}
+
+static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct r8152 *tp = usb_get_intfdata(intf);
+	int ret;
+
+	mutex_lock(&tp->control);
+
+	if (PMSG_IS_AUTO(message))
+		ret = rtl8152_rumtime_suspend(tp);
+	else
+		ret = rtl8152_system_suspend(tp);
+
 	mutex_unlock(&tp->control);
 
 	return ret;
@@ -3629,12 +3696,15 @@ static int rtl8152_resume(struct usb_int
 	if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
 		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
 			tp->rtl_ops.autosuspend_en(tp, false);
-			clear_bit(SELECTIVE_SUSPEND, &tp->flags);
 			napi_disable(&tp->napi);
 			set_bit(WORK_ENABLE, &tp->flags);
 			if (netif_carrier_ok(tp->netdev))
 				rtl_start_rx(tp);
 			napi_enable(&tp->napi);
+			clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+			smp_mb__after_atomic();
+			if (!list_empty(&tp->rx_done))
+				napi_schedule(&tp->napi);
 		} else {
 			tp->rtl_ops.up(tp);
 			netif_carrier_off(tp->netdev);
@@ -4310,6 +4380,11 @@ static int rtl8152_probe(struct usb_inte
 				NETIF_F_HIGHDMA | NETIF_F_FRAGLIST |
 				NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
 
+	if (tp->version == RTL_VER_01) {
+		netdev->features &= ~NETIF_F_RXCSUM;
+		netdev->hw_features &= ~NETIF_F_RXCSUM;
+	}
+
 	netdev->ethtool_ops = &ops;
 	netif_set_gso_max_size(netdev, RTL_LIMITED_TSO_SIZE);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/rtl8150.c linux-libre-4.9.52-gnu/drivers/net/usb/rtl8150.c
--- linux-libre-4.9-gnu/drivers/net/usb/rtl8150.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/rtl8150.c	2017-09-27 08:40:05.000000000 -0400
@@ -155,16 +155,36 @@ static const char driver_name [] = "rtl8
 */
 static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
 {
-	return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
-			       RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
-			       indx, 0, data, size, 500);
+	void *buf;
+	int ret;
+
+	buf = kmalloc(size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+			      RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
+			      indx, 0, buf, size, 500);
+	if (ret > 0 && ret <= size)
+		memcpy(data, buf, ret);
+	kfree(buf);
+	return ret;
 }
 
-static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
+static int set_registers(rtl8150_t * dev, u16 indx, u16 size, const void *data)
 {
-	return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
-			       RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
-			       indx, 0, data, size, 500);
+	void *buf;
+	int ret;
+
+	buf = kmemdup(data, size, GFP_NOIO);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+			      RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
+			      indx, 0, buf, size, 500);
+	kfree(buf);
+	return ret;
 }
 
 static void async_set_reg_cb(struct urb *urb)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/usb/sierra_net.c linux-libre-4.9.52-gnu/drivers/net/usb/sierra_net.c
--- linux-libre-4.9-gnu/drivers/net/usb/sierra_net.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/usb/sierra_net.c	2017-09-27 08:40:05.000000000 -0400
@@ -73,8 +73,6 @@ static	atomic_t iface_counter = ATOMIC_I
 /* Private data structure */
 struct sierra_net_data {
 
-	u8 ethr_hdr_tmpl[ETH_HLEN]; /* ethernet header template for rx'd pkts */
-
 	u16 link_up;		/* air link up or down */
 	u8 tx_hdr_template[4];	/* part of HIP hdr for tx'd packets */
 
@@ -122,6 +120,7 @@ struct param {
 
 /* LSI Protocol types */
 #define SIERRA_NET_PROTOCOL_UMTS      0x01
+#define SIERRA_NET_PROTOCOL_UMTS_DS   0x04
 /* LSI Coverage */
 #define SIERRA_NET_COVERAGE_NONE      0x00
 #define SIERRA_NET_COVERAGE_NOPACKET  0x01
@@ -129,7 +128,8 @@ struct param {
 /* LSI Session */
 #define SIERRA_NET_SESSION_IDLE       0x00
 /* LSI Link types */
-#define SIERRA_NET_AS_LINK_TYPE_IPv4  0x00
+#define SIERRA_NET_AS_LINK_TYPE_IPV4  0x00
+#define SIERRA_NET_AS_LINK_TYPE_IPV6  0x02
 
 struct lsi_umts {
 	u8 protocol;
@@ -137,9 +137,14 @@ struct lsi_umts {
 	__be16 length;
 	/* eventually use a union for the rest - assume umts for now */
 	u8 coverage;
-	u8 unused2[41];
+	u8 network_len; /* network name len */
+	u8 network[40]; /* network name (UCS2, bigendian) */
 	u8 session_state;
 	u8 unused3[33];
+} __packed;
+
+struct lsi_umts_single {
+	struct lsi_umts lsi;
 	u8 link_type;
 	u8 pdp_addr_len; /* NW-supplied PDP address len */
 	u8 pdp_addr[16]; /* NW-supplied PDP address (bigendian)) */
@@ -158,10 +163,31 @@ struct lsi_umts {
 	u8 reserved[8];
 } __packed;
 
+struct lsi_umts_dual {
+	struct lsi_umts lsi;
+	u8 pdp_addr4_len; /* NW-supplied PDP IPv4 address len */
+	u8 pdp_addr4[4];  /* NW-supplied PDP IPv4 address (bigendian)) */
+	u8 pdp_addr6_len; /* NW-supplied PDP IPv6 address len */
+	u8 pdp_addr6[16]; /* NW-supplied PDP IPv6 address (bigendian)) */
+	u8 unused4[23];
+	u8 dns1_addr4_len; /* NW-supplied 1st DNS v4 address len (bigendian) */
+	u8 dns1_addr4[4];  /* NW-supplied 1st DNS v4 address */
+	u8 dns1_addr6_len; /* NW-supplied 1st DNS v6 address len */
+	u8 dns1_addr6[16]; /* NW-supplied 1st DNS v6 address (bigendian)*/
+	u8 dns2_addr4_len; /* NW-supplied 2nd DNS v4 address len (bigendian) */
+	u8 dns2_addr4[4];  /* NW-supplied 2nd DNS v4 address */
+	u8 dns2_addr6_len; /* NW-supplied 2nd DNS v6 address len */
+	u8 dns2_addr6[16]; /* NW-supplied 2nd DNS v6 address (bigendian)*/
+	u8 unused5[68];
+} __packed;
+
 #define SIERRA_NET_LSI_COMMON_LEN      4
-#define SIERRA_NET_LSI_UMTS_LEN        (sizeof(struct lsi_umts))
+#define SIERRA_NET_LSI_UMTS_LEN        (sizeof(struct lsi_umts_single))
 #define SIERRA_NET_LSI_UMTS_STATUS_LEN \
 	(SIERRA_NET_LSI_UMTS_LEN - SIERRA_NET_LSI_COMMON_LEN)
+#define SIERRA_NET_LSI_UMTS_DS_LEN     (sizeof(struct lsi_umts_dual))
+#define SIERRA_NET_LSI_UMTS_DS_STATUS_LEN \
+	(SIERRA_NET_LSI_UMTS_DS_LEN - SIERRA_NET_LSI_COMMON_LEN)
 
 /* Forward definitions */
 static void sierra_sync_timer(unsigned long syncdata);
@@ -191,10 +217,11 @@ static inline void sierra_net_set_privat
 	dev->data[0] = (unsigned long)priv;
 }
 
-/* is packet IPv4 */
+/* is packet IPv4/IPv6 */
 static inline int is_ip(struct sk_buff *skb)
 {
-	return skb->protocol == cpu_to_be16(ETH_P_IP);
+	return skb->protocol == cpu_to_be16(ETH_P_IP) ||
+	       skb->protocol == cpu_to_be16(ETH_P_IPV6);
 }
 
 /*
@@ -350,49 +377,54 @@ static inline int sierra_net_is_valid_ad
 static int sierra_net_parse_lsi(struct usbnet *dev, char *data, int datalen)
 {
 	struct lsi_umts *lsi = (struct lsi_umts *)data;
+	u32 expected_length;
 
-	if (datalen < sizeof(struct lsi_umts)) {
-		netdev_err(dev->net, "%s: Data length %d, exp %Zu\n",
-				__func__, datalen,
-				sizeof(struct lsi_umts));
+	if (datalen < sizeof(struct lsi_umts_single)) {
+		netdev_err(dev->net, "%s: Data length %d, exp >= %Zu\n",
+			   __func__, datalen, sizeof(struct lsi_umts_single));
 		return -1;
 	}
 
-	if (lsi->length != cpu_to_be16(SIERRA_NET_LSI_UMTS_STATUS_LEN)) {
-		netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
-				__func__, be16_to_cpu(lsi->length),
-				(u32)SIERRA_NET_LSI_UMTS_STATUS_LEN);
-		return -1;
+	/* Validate the session state */
+	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
+		netdev_err(dev->net, "Session idle, 0x%02x\n",
+			   lsi->session_state);
+		return 0;
 	}
 
 	/* Validate the protocol  - only support UMTS for now */
-	if (lsi->protocol != SIERRA_NET_PROTOCOL_UMTS) {
+	if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS) {
+		struct lsi_umts_single *single = (struct lsi_umts_single *)lsi;
+
+		/* Validate the link type */
+		if (single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV4 &&
+		    single->link_type != SIERRA_NET_AS_LINK_TYPE_IPV6) {
+			netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
+				   single->link_type);
+			return -1;
+		}
+		expected_length = SIERRA_NET_LSI_UMTS_STATUS_LEN;
+	} else if (lsi->protocol == SIERRA_NET_PROTOCOL_UMTS_DS) {
+		expected_length = SIERRA_NET_LSI_UMTS_DS_STATUS_LEN;
+	} else {
 		netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
-			lsi->protocol);
+			   lsi->protocol);
 		return -1;
 	}
 
-	/* Validate the link type */
-	if (lsi->link_type != SIERRA_NET_AS_LINK_TYPE_IPv4) {
-		netdev_err(dev->net, "Link type unsupported: 0x%02x\n",
-			lsi->link_type);
+	if (be16_to_cpu(lsi->length) != expected_length) {
+		netdev_err(dev->net, "%s: LSI_UMTS_STATUS_LEN %d, exp %u\n",
+			   __func__, be16_to_cpu(lsi->length), expected_length);
 		return -1;
 	}
 
 	/* Validate the coverage */
-	if (lsi->coverage == SIERRA_NET_COVERAGE_NONE
-	   || lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
+	if (lsi->coverage == SIERRA_NET_COVERAGE_NONE ||
+	    lsi->coverage == SIERRA_NET_COVERAGE_NOPACKET) {
 		netdev_err(dev->net, "No coverage, 0x%02x\n", lsi->coverage);
 		return 0;
 	}
 
-	/* Validate the session state */
-	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
-		netdev_err(dev->net, "Session idle, 0x%02x\n",
-			lsi->session_state);
-		return 0;
-	}
-
 	/* Set link_sense true */
 	return 1;
 }
@@ -662,7 +694,6 @@ static int sierra_net_bind(struct usbnet
 	u8	numendpoints;
 	u16	fwattr = 0;
 	int	status;
-	struct ethhdr *eth;
 	struct sierra_net_data *priv;
 	static const u8 sync_tmplate[sizeof(priv->sync_msg)] = {
 		0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
@@ -700,11 +731,6 @@ static int sierra_net_bind(struct usbnet
 	dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
 	dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
 
-	/* we will have to manufacture ethernet headers, prepare template */
-	eth = (struct ethhdr *)priv->ethr_hdr_tmpl;
-	memcpy(&eth->h_dest, dev->net->dev_addr, ETH_ALEN);
-	eth->h_proto = cpu_to_be16(ETH_P_IP);
-
 	/* prepare shutdown message template */
 	memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
 	/* set context index initially to 0 - prepares tx hdr template */
@@ -833,9 +859,14 @@ static int sierra_net_rx_fixup(struct us
 
 		skb_pull(skb, hh.hdrlen);
 
-		/* We are going to accept this packet, prepare it */
-		memcpy(skb->data, sierra_net_get_private(dev)->ethr_hdr_tmpl,
-			ETH_HLEN);
+		/* We are going to accept this packet, prepare it.
+		 * In case protocol is IPv6, keep it, otherwise force IPv4.
+		 */
+		skb_reset_mac_header(skb);
+		if (eth_hdr(skb)->h_proto != cpu_to_be16(ETH_P_IPV6))
+			eth_hdr(skb)->h_proto = cpu_to_be16(ETH_P_IP);
+		eth_zero_addr(eth_hdr(skb)->h_source);
+		memcpy(eth_hdr(skb)->h_dest, dev->net->dev_addr, ETH_ALEN);
 
 		/* Last packet in batch handled by usbnet */
 		if (hh.payload_len.word == skb->len)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/virtio_net.c linux-libre-4.9.52-gnu/drivers/net/virtio_net.c
--- linux-libre-4.9-gnu/drivers/net/virtio_net.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/virtio_net.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,8 +47,16 @@ module_param(gso, bool, 0444);
  */
 DECLARE_EWMA(pkt_len, 1, 64)
 
+/* With mergeable buffers we align buffer address and use the low bits to
+ * encode its true size. Buffer size is up to 1 page so we need to align to
+ * square root of page size to ensure we reserve enough bits to encode the true
+ * size.
+ */
+#define MERGEABLE_BUFFER_MIN_ALIGN_SHIFT ((PAGE_SHIFT + 1) / 2)
+
 /* Minimum alignment for mergeable packet buffers. */
-#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
+#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, \
+				   1 << MERGEABLE_BUFFER_MIN_ALIGN_SHIFT)
 
 #define VIRTNET_DRIVER_VERSION "1.0.0"
 
@@ -840,7 +848,7 @@ static int xmit_skb(struct send_queue *s
 		hdr = skb_vnet_hdr(skb);
 
 	if (virtio_net_hdr_from_skb(skb, &hdr->hdr,
-				    virtio_is_little_endian(vi->vdev)))
+				    virtio_is_little_endian(vi->vdev), false))
 		BUG();
 
 	if (vi->mergeable_rx_bufs)
@@ -1456,6 +1464,7 @@ static const struct net_device_ops virtn
 #ifdef CONFIG_NET_RX_BUSY_POLL
 	.ndo_busy_poll		= virtnet_busy_poll,
 #endif
+	.ndo_features_check	= passthru_features_check,
 };
 
 static void virtnet_config_changed_work(struct work_struct *work)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/vrf.c linux-libre-4.9.52-gnu/drivers/net/vrf.c
--- linux-libre-4.9-gnu/drivers/net/vrf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/vrf.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,12 +36,14 @@
 #include <net/addrconf.h>
 #include <net/l3mdev.h>
 #include <net/fib_rules.h>
+#include <net/netns/generic.h>
 
 #define DRV_NAME	"vrf"
 #define DRV_VERSION	"1.0"
 
 #define FIB_RULE_PREF  1000       /* default preference for FIB rules */
-static bool add_fib_rules = true;
+
+static unsigned int vrf_net_id;
 
 struct net_vrf {
 	struct rtable __rcu	*rth;
@@ -263,7 +265,9 @@ static netdev_tx_t vrf_process_v4_outbou
 		.flowi4_iif = LOOPBACK_IFINDEX,
 		.flowi4_tos = RT_TOS(ip4h->tos),
 		.flowi4_flags = FLOWI_FLAG_ANYSRC | FLOWI_FLAG_SKIP_NH_OIF,
+		.flowi4_proto = ip4h->protocol,
 		.daddr = ip4h->daddr,
+		.saddr = ip4h->saddr,
 	};
 	struct net *net = dev_net(vrf_dev);
 	struct rtable *rt;
@@ -344,6 +348,7 @@ static netdev_tx_t is_ip_tx_frame(struct
 
 static netdev_tx_t vrf_xmit(struct sk_buff *skb, struct net_device *dev)
 {
+	int len = skb->len;
 	netdev_tx_t ret = is_ip_tx_frame(skb, dev);
 
 	if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
@@ -351,7 +356,7 @@ static netdev_tx_t vrf_xmit(struct sk_bu
 
 		u64_stats_update_begin(&dstats->syncp);
 		dstats->tx_pkts++;
-		dstats->tx_bytes += skb->len;
+		dstats->tx_bytes += len;
 		u64_stats_update_end(&dstats->syncp);
 	} else {
 		this_cpu_inc(dev->dstats->tx_drps);
@@ -371,6 +376,8 @@ static int vrf_finish_output6(struct net
 	struct in6_addr *nexthop;
 	int ret;
 
+	nf_reset(skb);
+
 	skb->protocol = htons(ETH_P_IPV6);
 	skb->dev = dev;
 
@@ -462,8 +469,10 @@ static void vrf_rt6_release(struct net_d
 	}
 
 	if (rt6_local) {
-		if (rt6_local->rt6i_idev)
+		if (rt6_local->rt6i_idev) {
 			in6_dev_put(rt6_local->rt6i_idev);
+			rt6_local->rt6i_idev = NULL;
+		}
 
 		dst = &rt6_local->dst;
 		dev_put(dst->dev);
@@ -552,6 +561,8 @@ static int vrf_finish_output(struct net
 	u32 nexthop;
 	int ret = -EINVAL;
 
+	nf_reset(skb);
+
 	/* Be paranoid, rather than too clever. */
 	if (unlikely(skb_headroom(skb) < hh_len && dev->header_ops)) {
 		struct sk_buff *skb2;
@@ -776,15 +787,10 @@ static int vrf_del_slave(struct net_devi
 static void vrf_dev_uninit(struct net_device *dev)
 {
 	struct net_vrf *vrf = netdev_priv(dev);
-	struct net_device *port_dev;
-	struct list_head *iter;
 
 	vrf_rtable_release(dev, vrf);
 	vrf_rt6_release(dev, vrf);
 
-	netdev_for_each_lower_dev(dev, port_dev, iter)
-		vrf_del_slave(dev, port_dev);
-
 	free_percpu(dev->dstats);
 	dev->dstats = NULL;
 }
@@ -841,6 +847,7 @@ static u32 vrf_fib_table(const struct ne
 
 static int vrf_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
+	kfree_skb(skb);
 	return 0;
 }
 
@@ -850,9 +857,7 @@ static struct sk_buff *vrf_rcv_nfhook(u8
 {
 	struct net *net = dev_net(dev);
 
-	nf_reset(skb);
-
-	if (NF_HOOK(pf, hook, net, NULL, skb, dev, NULL, vrf_rcv_finish) < 0)
+	if (nf_hook(pf, hook, net, NULL, skb, dev, NULL, vrf_rcv_finish) != 1)
 		skb = NULL;    /* kfree_skb(skb) handled by nf code */
 
 	return skb;
@@ -966,6 +971,7 @@ static struct sk_buff *vrf_ip6_rcv(struc
 	 */
 	need_strict = rt6_need_strict(&ipv6_hdr(skb)->daddr);
 	if (!ipv6_ndisc_frame(skb) && !need_strict) {
+		vrf_rx_stats(vrf_dev, skb->len);
 		skb->dev = vrf_dev;
 		skb->skb_iif = vrf_dev->ifindex;
 
@@ -1007,6 +1013,8 @@ static struct sk_buff *vrf_ip_rcv(struct
 		goto out;
 	}
 
+	vrf_rx_stats(vrf_dev, skb->len);
+
 	skb_push(skb, skb->mac_len);
 	dev_queue_xmit_nit(skb, vrf_dev);
 	skb_pull(skb, skb->mac_len);
@@ -1114,7 +1122,7 @@ static int vrf_fib_rule(const struct net
 		goto nla_put_failure;
 
 	/* rule only needs to appear once */
-	nlh->nlmsg_flags &= NLM_F_EXCL;
+	nlh->nlmsg_flags |= NLM_F_EXCL;
 
 	frh = nlmsg_data(nlh);
 	memset(frh, 0, sizeof(*frh));
@@ -1219,6 +1227,12 @@ static int vrf_validate(struct nlattr *t
 
 static void vrf_dellink(struct net_device *dev, struct list_head *head)
 {
+	struct net_device *port_dev;
+	struct list_head *iter;
+
+	netdev_for_each_lower_dev(dev, port_dev, iter)
+		vrf_del_slave(dev, port_dev);
+
 	unregister_netdevice_queue(dev, head);
 }
 
@@ -1226,12 +1240,16 @@ static int vrf_newlink(struct net *src_n
 		       struct nlattr *tb[], struct nlattr *data[])
 {
 	struct net_vrf *vrf = netdev_priv(dev);
+	bool *add_fib_rules;
+	struct net *net;
 	int err;
 
 	if (!data || !data[IFLA_VRF_TABLE])
 		return -EINVAL;
 
 	vrf->tb_id = nla_get_u32(data[IFLA_VRF_TABLE]);
+	if (vrf->tb_id == RT_TABLE_UNSPEC)
+		return -EINVAL;
 
 	dev->priv_flags |= IFF_L3MDEV_MASTER;
 
@@ -1239,13 +1257,15 @@ static int vrf_newlink(struct net *src_n
 	if (err)
 		goto out;
 
-	if (add_fib_rules) {
+	net = dev_net(dev);
+	add_fib_rules = net_generic(net, vrf_net_id);
+	if (*add_fib_rules) {
 		err = vrf_add_fib_rules(dev);
 		if (err) {
 			unregister_netdevice(dev);
 			goto out;
 		}
-		add_fib_rules = false;
+		*add_fib_rules = false;
 	}
 
 out:
@@ -1328,16 +1348,38 @@ static struct notifier_block vrf_notifie
 	.notifier_call = vrf_device_event,
 };
 
+/* Initialize per network namespace state */
+static int __net_init vrf_netns_init(struct net *net)
+{
+	bool *add_fib_rules = net_generic(net, vrf_net_id);
+
+	*add_fib_rules = true;
+
+	return 0;
+}
+
+static struct pernet_operations vrf_net_ops __net_initdata = {
+	.init = vrf_netns_init,
+	.id   = &vrf_net_id,
+	.size = sizeof(bool),
+};
+
 static int __init vrf_init_module(void)
 {
 	int rc;
 
 	register_netdevice_notifier(&vrf_notifier_block);
 
-	rc = rtnl_link_register(&vrf_link_ops);
+	rc = register_pernet_subsys(&vrf_net_ops);
 	if (rc < 0)
 		goto error;
 
+	rc = rtnl_link_register(&vrf_link_ops);
+	if (rc < 0) {
+		unregister_pernet_subsys(&vrf_net_ops);
+		goto error;
+	}
+
 	return 0;
 
 error:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/vxlan.c linux-libre-4.9.52-gnu/drivers/net/vxlan.c
--- linux-libre-4.9-gnu/drivers/net/vxlan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/vxlan.c	2017-09-27 08:40:05.000000000 -0400
@@ -59,6 +59,8 @@ static const u8 all_zeros_mac[ETH_ALEN +
 
 static int vxlan_sock_add(struct vxlan_dev *vxlan);
 
+static void vxlan_vs_del_dev(struct vxlan_dev *vxlan);
+
 /* per-network namespace private data for this module */
 struct vxlan_net {
 	struct list_head  vxlan_list;
@@ -225,15 +227,15 @@ static struct vxlan_sock *vxlan_find_soc
 
 static struct vxlan_dev *vxlan_vs_find_vni(struct vxlan_sock *vs, __be32 vni)
 {
-	struct vxlan_dev *vxlan;
+	struct vxlan_dev_node *node;
 
 	/* For flow based devices, map all packets to VNI 0 */
 	if (vs->flags & VXLAN_F_COLLECT_METADATA)
 		vni = 0;
 
-	hlist_for_each_entry_rcu(vxlan, vni_head(vs, vni), hlist) {
-		if (vxlan->default_dst.remote_vni == vni)
-			return vxlan;
+	hlist_for_each_entry_rcu(node, vni_head(vs, vni), hlist) {
+		if (node->vxlan->default_dst.remote_vni == vni)
+			return node->vxlan;
 	}
 
 	return NULL;
@@ -717,6 +719,22 @@ static void vxlan_fdb_destroy(struct vxl
 	call_rcu(&f->rcu, vxlan_fdb_free);
 }
 
+static void vxlan_dst_free(struct rcu_head *head)
+{
+	struct vxlan_rdst *rd = container_of(head, struct vxlan_rdst, rcu);
+
+	dst_cache_destroy(&rd->dst_cache);
+	kfree(rd);
+}
+
+static void vxlan_fdb_dst_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f,
+				  struct vxlan_rdst *rd)
+{
+	list_del_rcu(&rd->list);
+	vxlan_fdb_notify(vxlan, f, rd, RTM_DELNEIGH);
+	call_rcu(&rd->rcu, vxlan_dst_free);
+}
+
 static int vxlan_fdb_parse(struct nlattr *tb[], struct vxlan_dev *vxlan,
 			   union vxlan_addr *ip, __be16 *port, __be32 *vni,
 			   u32 *ifindex)
@@ -847,9 +865,7 @@ static int vxlan_fdb_delete(struct ndmsg
 	 * otherwise destroy the fdb entry
 	 */
 	if (rd && !list_is_singular(&f->remotes)) {
-		list_del_rcu(&rd->list);
-		vxlan_fdb_notify(vxlan, f, rd, RTM_DELNEIGH);
-		kfree_rcu(rd, rcu);
+		vxlan_fdb_dst_destroy(vxlan, f, rd);
 		goto out;
 	}
 
@@ -1026,6 +1042,8 @@ static void vxlan_sock_release(struct vx
 	rcu_assign_pointer(vxlan->vn4_sock, NULL);
 	synchronize_net();
 
+	vxlan_vs_del_dev(vxlan);
+
 	if (__vxlan_sock_release_prep(sock4)) {
 		udp_tunnel_sock_release(sock4->sock);
 		kfree(sock4);
@@ -1942,7 +1960,6 @@ static void vxlan_xmit_one(struct sk_buf
 	const struct iphdr *old_iph;
 	union vxlan_addr *dst;
 	union vxlan_addr remote_ip, local_ip;
-	union vxlan_addr *src;
 	struct vxlan_metadata _md;
 	struct vxlan_metadata *md = &_md;
 	__be16 src_port = 0, dst_port;
@@ -1956,11 +1973,12 @@ static void vxlan_xmit_one(struct sk_buf
 
 	info = skb_tunnel_info(skb);
 
+	rcu_read_lock();
 	if (rdst) {
 		dst_port = rdst->remote_port ? rdst->remote_port : vxlan->cfg.dst_port;
 		vni = rdst->remote_vni;
 		dst = &rdst->remote_ip;
-		src = &vxlan->cfg.saddr;
+		local_ip = vxlan->cfg.saddr;
 		dst_cache = &rdst->dst_cache;
 	} else {
 		if (!info) {
@@ -1979,7 +1997,6 @@ static void vxlan_xmit_one(struct sk_buf
 			local_ip.sin6.sin6_addr = info->key.u.ipv6.src;
 		}
 		dst = &remote_ip;
-		src = &local_ip;
 		dst_cache = &info->dst_cache;
 	}
 
@@ -1987,7 +2004,7 @@ static void vxlan_xmit_one(struct sk_buf
 		if (did_rsc) {
 			/* short-circuited back to local bridge */
 			vxlan_encap_bypass(skb, vxlan, vxlan);
-			return;
+			goto out_unlock;
 		}
 		goto drop;
 	}
@@ -2028,7 +2045,7 @@ static void vxlan_xmit_one(struct sk_buf
 		rt = vxlan_get_route(vxlan, skb,
 				     rdst ? rdst->remote_ifindex : 0, tos,
 				     dst->sin.sin_addr.s_addr,
-				     &src->sin.sin_addr.s_addr,
+				     &local_ip.sin.sin_addr.s_addr,
 				     dst_cache, info);
 		if (IS_ERR(rt)) {
 			netdev_dbg(dev, "no route to %pI4\n",
@@ -2056,7 +2073,7 @@ static void vxlan_xmit_one(struct sk_buf
 			if (!dst_vxlan)
 				goto tx_error;
 			vxlan_encap_bypass(skb, vxlan, dst_vxlan);
-			return;
+			goto out_unlock;
 		}
 
 		if (!info)
@@ -2071,7 +2088,7 @@ static void vxlan_xmit_one(struct sk_buf
 		if (err < 0)
 			goto xmit_tx_error;
 
-		udp_tunnel_xmit_skb(rt, sk, skb, src->sin.sin_addr.s_addr,
+		udp_tunnel_xmit_skb(rt, sk, skb, local_ip.sin.sin_addr.s_addr,
 				    dst->sin.sin_addr.s_addr, tos, ttl, df,
 				    src_port, dst_port, xnet, !udp_sum);
 #if IS_ENABLED(CONFIG_IPV6)
@@ -2087,7 +2104,7 @@ static void vxlan_xmit_one(struct sk_buf
 		ndst = vxlan6_get_route(vxlan, skb,
 					rdst ? rdst->remote_ifindex : 0, tos,
 					label, &dst->sin6.sin6_addr,
-					&src->sin6.sin6_addr,
+					&local_ip.sin6.sin6_addr,
 					dst_cache, info);
 		if (IS_ERR(ndst)) {
 			netdev_dbg(dev, "no route to %pI6\n",
@@ -2117,7 +2134,7 @@ static void vxlan_xmit_one(struct sk_buf
 			if (!dst_vxlan)
 				goto tx_error;
 			vxlan_encap_bypass(skb, vxlan, dst_vxlan);
-			return;
+			goto out_unlock;
 		}
 
 		if (!info)
@@ -2131,15 +2148,16 @@ static void vxlan_xmit_one(struct sk_buf
 		if (err < 0) {
 			dst_release(ndst);
 			dev->stats.tx_errors++;
-			return;
+			goto out_unlock;
 		}
 		udp_tunnel6_xmit_skb(ndst, sk, skb, dev,
-				     &src->sin6.sin6_addr,
+				     &local_ip.sin6.sin6_addr,
 				     &dst->sin6.sin6_addr, tos, ttl,
 				     label, src_port, dst_port, !udp_sum);
 #endif
 	}
-
+out_unlock:
+	rcu_read_unlock();
 	return;
 
 drop:
@@ -2155,6 +2173,7 @@ tx_error:
 	dev->stats.tx_errors++;
 tx_free:
 	dev_kfree_skb(skb);
+	rcu_read_unlock();
 }
 
 /* Transmit local packets over Vxlan
@@ -2266,7 +2285,7 @@ static void vxlan_cleanup(unsigned long
 				= container_of(p, struct vxlan_fdb, hlist);
 			unsigned long timeout;
 
-			if (f->state & NUD_PERMANENT)
+			if (f->state & (NUD_PERMANENT | NUD_NOARP))
 				continue;
 
 			timeout = f->used + vxlan->cfg.age_interval * HZ;
@@ -2285,13 +2304,27 @@ static void vxlan_cleanup(unsigned long
 	mod_timer(&vxlan->age_timer, next_timer);
 }
 
-static void vxlan_vs_add_dev(struct vxlan_sock *vs, struct vxlan_dev *vxlan)
+static void vxlan_vs_del_dev(struct vxlan_dev *vxlan)
+{
+	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
+
+	spin_lock(&vn->sock_lock);
+	hlist_del_init_rcu(&vxlan->hlist4.hlist);
+#if IS_ENABLED(CONFIG_IPV6)
+	hlist_del_init_rcu(&vxlan->hlist6.hlist);
+#endif
+	spin_unlock(&vn->sock_lock);
+}
+
+static void vxlan_vs_add_dev(struct vxlan_sock *vs, struct vxlan_dev *vxlan,
+			     struct vxlan_dev_node *node)
 {
 	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
 	__be32 vni = vxlan->default_dst.remote_vni;
 
+	node->vxlan = vxlan;
 	spin_lock(&vn->sock_lock);
-	hlist_add_head_rcu(&vxlan->hlist, vni_head(vs, vni));
+	hlist_add_head_rcu(&node->hlist, vni_head(vs, vni));
 	spin_unlock(&vn->sock_lock);
 }
 
@@ -2449,7 +2482,8 @@ static int vxlan_fill_metadata_dst(struc
 			return -EINVAL;
 		rt = vxlan_get_route(vxlan, skb, 0, info->key.tos,
 				     info->key.u.ipv4.dst,
-				     &info->key.u.ipv4.src, NULL, info);
+				     &info->key.u.ipv4.src,
+				     &info->dst_cache, info);
 		if (IS_ERR(rt))
 			return PTR_ERR(rt);
 		ip_rt_put(rt);
@@ -2459,7 +2493,8 @@ static int vxlan_fill_metadata_dst(struc
 
 		ndst = vxlan6_get_route(vxlan, skb, 0, info->key.tos,
 					info->key.label, &info->key.u.ipv6.dst,
-					&info->key.u.ipv6.src, NULL, info);
+					&info->key.u.ipv6.src,
+					&info->dst_cache, info);
 		if (IS_ERR(ndst))
 			return PTR_ERR(ndst);
 		dst_release(ndst);
@@ -2635,7 +2670,7 @@ static int vxlan_validate(struct nlattr
 
 	if (data[IFLA_VXLAN_ID]) {
 		__u32 id = nla_get_u32(data[IFLA_VXLAN_ID]);
-		if (id >= VXLAN_VID_MASK)
+		if (id >= VXLAN_N_VID)
 			return -ERANGE;
 	}
 
@@ -2748,6 +2783,7 @@ static int __vxlan_sock_add(struct vxlan
 {
 	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
 	struct vxlan_sock *vs = NULL;
+	struct vxlan_dev_node *node;
 
 	if (!vxlan->cfg.no_share) {
 		spin_lock(&vn->sock_lock);
@@ -2765,12 +2801,16 @@ static int __vxlan_sock_add(struct vxlan
 	if (IS_ERR(vs))
 		return PTR_ERR(vs);
 #if IS_ENABLED(CONFIG_IPV6)
-	if (ipv6)
+	if (ipv6) {
 		rcu_assign_pointer(vxlan->vn6_sock, vs);
-	else
+		node = &vxlan->hlist6;
+	} else
 #endif
+	{
 		rcu_assign_pointer(vxlan->vn4_sock, vs);
-	vxlan_vs_add_dev(vs, vxlan);
+		node = &vxlan->hlist4;
+	}
+	vxlan_vs_add_dev(vs, vxlan, node);
 	return 0;
 }
 
@@ -2887,7 +2927,7 @@ static int vxlan_dev_configure(struct ne
 	memcpy(&vxlan->cfg, conf, sizeof(*conf));
 	if (!vxlan->cfg.dst_port) {
 		if (conf->flags & VXLAN_F_GPE)
-			vxlan->cfg.dst_port = 4790; /* IANA assigned VXLAN-GPE port */
+			vxlan->cfg.dst_port = htons(4790); /* IANA VXLAN-GPE port */
 		else
 			vxlan->cfg.dst_port = default_port;
 	}
@@ -3053,12 +3093,6 @@ static int vxlan_newlink(struct net *src
 static void vxlan_dellink(struct net_device *dev, struct list_head *head)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
-
-	spin_lock(&vn->sock_lock);
-	if (!hlist_unhashed(&vxlan->hlist))
-		hlist_del_rcu(&vxlan->hlist);
-	spin_unlock(&vn->sock_lock);
 
 	gro_cells_destroy(&vxlan->gro_cells);
 	list_del(&vxlan->next);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/core.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/core.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/core.c	2016-12-11 17:54:04.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/core.c	2017-09-27 15:03:17.000000000 -0400
@@ -1534,7 +1534,7 @@ static void ath10k_core_restart(struct w
 	switch (ar->state) {
 	case ATH10K_STATE_ON:
 		ar->state = ATH10K_STATE_RESTARTING;
-		ath10k_hif_stop(ar);
+		ath10k_halt(ar);
 		ath10k_scan_finish(ar);
 		ieee80211_restart_hw(ar->hw);
 		break;
@@ -1852,6 +1852,12 @@ int ath10k_core_start(struct ath10k *ar,
 		goto err_wmi_detach;
 	}
 
+	/* If firmware indicates Full Rx Reorder support it must be used in a
+	 * slightly different manner. Let HTT code know.
+	 */
+	ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER,
+						ar->wmi.svc_map));
+
 	status = ath10k_htt_rx_alloc(&ar->htt);
 	if (status) {
 		ath10k_err(ar, "failed to alloc htt rx: %d\n", status);
@@ -1901,7 +1907,8 @@ int ath10k_core_start(struct ath10k *ar,
 	ath10k_dbg(ar, ATH10K_DBG_BOOT, "firmware %s booted\n",
 		   ar->hw->wiphy->fw_version);
 
-	if (test_bit(WMI_SERVICE_EXT_RES_CFG_SUPPORT, ar->wmi.svc_map)) {
+	if (test_bit(WMI_SERVICE_EXT_RES_CFG_SUPPORT, ar->wmi.svc_map) &&
+	    mode == ATH10K_FIRMWARE_MODE_NORMAL) {
 		val = 0;
 		if (ath10k_peer_stats_enabled(ar))
 			val = WMI_10_4_PEER_STATS;
@@ -1954,18 +1961,15 @@ int ath10k_core_start(struct ath10k *ar,
 	 * possible to implicitly make it correct by creating a dummy vdev and
 	 * then deleting it.
 	 */
-	status = ath10k_core_reset_rx_filter(ar);
-	if (status) {
-		ath10k_err(ar, "failed to reset rx filter: %d\n", status);
-		goto err_hif_stop;
+	if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
+		status = ath10k_core_reset_rx_filter(ar);
+		if (status) {
+			ath10k_err(ar,
+				   "failed to reset rx filter: %d\n", status);
+			goto err_hif_stop;
+		}
 	}
 
-	/* If firmware indicates Full Rx Reorder support it must be used in a
-	 * slightly different manner. Let HTT code know.
-	 */
-	ar->htt.rx_ring.in_ord_rx = !!(test_bit(WMI_SERVICE_RX_FULL_REORDER,
-						ar->wmi.svc_map));
-
 	status = ath10k_htt_rx_ring_refill(ar);
 	if (status) {
 		ath10k_err(ar, "failed to refill htt rx ring: %d\n", status);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/core.h linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/core.h
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/core.h	2017-09-27 08:40:05.000000000 -0400
@@ -557,10 +557,8 @@ enum ath10k_fw_features {
 	 */
 	ATH10K_FW_FEATURE_BTCOEX_PARAM = 14,
 
-	/* Older firmware with HTT delivers incorrect tx status for null func
-	 * frames to driver, but this fixed in 10.2 and 10.4 firmware versions.
-	 * Also this workaround results in reporting of incorrect null func
-	 * status for 10.4. This flag is used to skip the workaround.
+	/* Unused flag and proven to be not working, enable this if you want
+	 * to experiment sending NULL func data frames in HTT TX
 	 */
 	ATH10K_FW_FEATURE_SKIP_NULL_FUNC_WAR = 15,
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/mac.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/mac.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/mac.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/mac.c	2017-09-27 08:40:05.000000000 -0400
@@ -3255,8 +3255,6 @@ ath10k_mac_tx_h_get_txmode(struct ath10k
 	if (ar->htt.target_version_major < 3 &&
 	    (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
 	    !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
-		      ar->running_fw->fw_file.fw_features) &&
-	    !test_bit(ATH10K_FW_FEATURE_SKIP_NULL_FUNC_WAR,
 		      ar->running_fw->fw_file.fw_features))
 		return ATH10K_HW_TXRX_MGMT;
 
@@ -4449,7 +4447,6 @@ static int ath10k_start(struct ieee80211
 		ar->state = ATH10K_STATE_ON;
 		break;
 	case ATH10K_STATE_RESTARTING:
-		ath10k_halt(ar);
 		ar->state = ATH10K_STATE_RESTARTED;
 		break;
 	case ATH10K_STATE_ON:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/pci.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/pci.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/pci.c	2016-12-11 17:54:13.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/pci.c	2017-09-27 15:03:33.000000000 -0400
@@ -1647,6 +1647,8 @@ static int ath10k_pci_hif_start(struct a
 
 	ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif start\n");
 
+	napi_enable(&ar->napi);
+
 	ath10k_pci_irq_enable(ar);
 	ath10k_pci_rx_post(ar);
 
@@ -2531,7 +2533,6 @@ static int ath10k_pci_hif_power_up(struc
 		ath10k_err(ar, "could not wake up target CPU: %d\n", ret);
 		goto err_ce;
 	}
-	napi_enable(&ar->napi);
 
 	return 0;
 
@@ -3132,7 +3133,7 @@ int ath10k_pci_setup_resource(struct ath
 	setup_timer(&ar_pci->rx_post_retry, ath10k_pci_rx_replenish_retry,
 		    (unsigned long)ar);
 
-	if (QCA_REV_6174(ar))
+	if (QCA_REV_6174(ar) || QCA_REV_9377(ar))
 		ath10k_pci_override_ce_config(ar);
 
 	ret = ath10k_pci_alloc_pipes(ar);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/spectral.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/spectral.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/spectral.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/spectral.c	2017-09-27 08:40:05.000000000 -0400
@@ -338,7 +338,7 @@ static ssize_t write_file_spec_scan_ctl(
 		} else {
 			res = -EINVAL;
 		}
-	} else if (strncmp("background", buf, 9) == 0) {
+	} else if (strncmp("background", buf, 10) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_BACKGROUND);
 	} else if (strncmp("manual", buf, 6) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_MANUAL);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath10k/wmi-ops.h	2017-09-27 08:40:05.000000000 -0400
@@ -660,6 +660,9 @@ ath10k_wmi_vdev_spectral_conf(struct ath
 	struct sk_buff *skb;
 	u32 cmd_id;
 
+	if (!ar->wmi.ops->gen_vdev_spectral_conf)
+		return -EOPNOTSUPP;
+
 	skb = ar->wmi.ops->gen_vdev_spectral_conf(ar, arg);
 	if (IS_ERR(skb))
 		return PTR_ERR(skb);
@@ -675,6 +678,9 @@ ath10k_wmi_vdev_spectral_enable(struct a
 	struct sk_buff *skb;
 	u32 cmd_id;
 
+	if (!ar->wmi.ops->gen_vdev_spectral_enable)
+		return -EOPNOTSUPP;
+
 	skb = ar->wmi.ops->gen_vdev_spectral_enable(ar, vdev_id, trigger,
 						    enable);
 	if (IS_ERR(skb))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath5k/mac80211-ops.c	2017-09-27 08:40:05.000000000 -0400
@@ -502,8 +502,7 @@ ath5k_set_key(struct ieee80211_hw *hw, e
 			break;
 		return -EOPNOTSUPP;
 	default:
-		WARN_ON(1);
-		return -EINVAL;
+		return -EOPNOTSUPP;
 	}
 
 	mutex_lock(&ah->lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h	2017-09-27 08:40:05.000000000 -0400
@@ -73,13 +73,13 @@
 #define AR9300_OTP_BASE \
 		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30000 : 0x14000)
 #define AR9300_OTP_STATUS \
-		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30018 : 0x15f18)
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x31018 : 0x15f18)
 #define AR9300_OTP_STATUS_TYPE		0x7
 #define AR9300_OTP_STATUS_VALID		0x4
 #define AR9300_OTP_STATUS_ACCESS_BUSY	0x2
 #define AR9300_OTP_STATUS_SM_BUSY	0x1
 #define AR9300_OTP_READ_DATA \
-		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x3001c : 0x15f1c)
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x3101c : 0x15f1c)
 
 enum targetPowerHTRates {
 	HT_TARGET_RATE_0_8_16,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/ar9003_phy.c	2017-09-27 08:40:05.000000000 -0400
@@ -1821,8 +1821,6 @@ static void ar9003_hw_spectral_scan_wait
 static void ar9003_hw_tx99_start(struct ath_hw *ah, u32 qnum)
 {
 	REG_SET_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR);
-	REG_SET_BIT(ah, 0x9864, 0x7f000);
-	REG_SET_BIT(ah, 0x9924, 0x7f00fe);
 	REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
 	REG_WRITE(ah, AR_CR, AR_CR_RXD);
 	REG_WRITE(ah, AR_DLCL_IFS(qnum), 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/ath9k.h linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/ath9k.h
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/ath9k.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/ath9k.h	2017-09-27 08:40:05.000000000 -0400
@@ -959,6 +959,7 @@ struct ath_softc {
 	struct survey_info *cur_survey;
 	struct survey_info survey[ATH9K_NUM_CHANNELS];
 
+	spinlock_t intr_lock;
 	struct tasklet_struct intr_tq;
 	struct tasklet_struct bcon_tasklet;
 	struct ath_hw *sc_ah;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/common-spectral.c	2017-09-27 08:40:05.000000000 -0400
@@ -528,6 +528,9 @@ int ath_cmn_process_fft(struct ath_spec_
 	if (!(radar_info->pulse_bw_info & SPECTRAL_SCAN_BITMASK))
 		return 0;
 
+	if (!spec_priv->rfs_chan_spec_scan)
+		return 1;
+
 	/* Output buffers are full, no need to process anything
 	 * since there is no space to put the result anyway
 	 */
@@ -1072,7 +1075,7 @@ static struct rchan_callbacks rfs_spec_s
 
 void ath9k_cmn_spectral_deinit_debug(struct ath_spec_scan_priv *spec_priv)
 {
-	if (IS_ENABLED(CONFIG_ATH9K_DEBUGFS)) {
+	if (IS_ENABLED(CONFIG_ATH9K_DEBUGFS) && spec_priv->rfs_chan_spec_scan) {
 		relay_close(spec_priv->rfs_chan_spec_scan);
 		spec_priv->rfs_chan_spec_scan = NULL;
 	}
@@ -1086,6 +1089,9 @@ void ath9k_cmn_spectral_init_debug(struc
 					    debugfs_phy,
 					    1024, 256, &rfs_spec_scan_cb,
 					    NULL);
+	if (!spec_priv->rfs_chan_spec_scan)
+		return;
+
 	debugfs_create_file("spectral_scan_ctl",
 			    S_IRUSR | S_IWUSR,
 			    debugfs_phy, spec_priv,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/hif_usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,6 +37,7 @@ static struct usb_device_id ath9k_hif_us
 	{ USB_DEVICE(0x0cf3, 0xb002) }, /* Ubiquiti WifiStation */
 	{ USB_DEVICE(0x057c, 0x8403) }, /* AVM FRITZ!WLAN 11N v2 USB */
 	{ USB_DEVICE(0x0471, 0x209e) }, /* Philips (or NXP) PTA01 */
+	{ USB_DEVICE(0x1eda, 0x2315) }, /* AirTies */
 
 	{ USB_DEVICE(0x0cf3, 0x7015),
 	  .driver_info = AR9287_USB },  /* Atheros */
@@ -1218,6 +1219,9 @@ static int send_eject_command(struct usb
 	u8 bulk_out_ep;
 	int r;
 
+	if (iface_desc->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	/* Find bulk out endpoint */
 	for (r = 1; r >= 0; r--) {
 		endpoint = &iface_desc->endpoint[r].desc;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/hw.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/hw.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/hw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/hw.c	2017-09-27 08:40:05.000000000 -0400
@@ -2792,7 +2792,7 @@ u32 ath9k_hw_gpio_get(struct ath_hw *ah,
 		WARN_ON(1);
 	}
 
-	return val;
+	return !!val;
 }
 EXPORT_SYMBOL(ath9k_hw_gpio_get);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/init.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/init.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/init.c	2017-09-27 08:40:05.000000000 -0400
@@ -626,6 +626,7 @@ static int ath9k_init_softc(u16 devid, s
 		common->bt_ant_diversity = 1;
 
 	spin_lock_init(&common->cc_lock);
+	spin_lock_init(&sc->intr_lock);
 	spin_lock_init(&sc->sc_serial_rw);
 	spin_lock_init(&sc->sc_pm_lock);
 	spin_lock_init(&sc->chan_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/mac.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/mac.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/mac.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/mac.c	2017-09-27 08:40:05.000000000 -0400
@@ -805,21 +805,12 @@ void ath9k_hw_disable_interrupts(struct
 }
 EXPORT_SYMBOL(ath9k_hw_disable_interrupts);
 
-void ath9k_hw_enable_interrupts(struct ath_hw *ah)
+static void __ath9k_hw_enable_interrupts(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	u32 sync_default = AR_INTR_SYNC_DEFAULT;
 	u32 async_mask;
 
-	if (!(ah->imask & ATH9K_INT_GLOBAL))
-		return;
-
-	if (!atomic_inc_and_test(&ah->intr_ref_cnt)) {
-		ath_dbg(common, INTERRUPT, "Do not enable IER ref count %d\n",
-			atomic_read(&ah->intr_ref_cnt));
-		return;
-	}
-
 	if (AR_SREV_9340(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah) ||
 	    AR_SREV_9561(ah))
 		sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
@@ -841,6 +832,39 @@ void ath9k_hw_enable_interrupts(struct a
 	ath_dbg(common, INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
 		REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
 }
+
+void ath9k_hw_resume_interrupts(struct ath_hw *ah)
+{
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	if (!(ah->imask & ATH9K_INT_GLOBAL))
+		return;
+
+	if (atomic_read(&ah->intr_ref_cnt) != 0) {
+		ath_dbg(common, INTERRUPT, "Do not enable IER ref count %d\n",
+			atomic_read(&ah->intr_ref_cnt));
+		return;
+	}
+
+	__ath9k_hw_enable_interrupts(ah);
+}
+EXPORT_SYMBOL(ath9k_hw_resume_interrupts);
+
+void ath9k_hw_enable_interrupts(struct ath_hw *ah)
+{
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	if (!(ah->imask & ATH9K_INT_GLOBAL))
+		return;
+
+	if (!atomic_inc_and_test(&ah->intr_ref_cnt)) {
+		ath_dbg(common, INTERRUPT, "Do not enable IER ref count %d\n",
+			atomic_read(&ah->intr_ref_cnt));
+		return;
+	}
+
+	__ath9k_hw_enable_interrupts(ah);
+}
 EXPORT_SYMBOL(ath9k_hw_enable_interrupts);
 
 void ath9k_hw_set_interrupts(struct ath_hw *ah)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/mac.h linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/mac.h
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/mac.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/mac.h	2017-09-27 08:40:05.000000000 -0400
@@ -744,6 +744,7 @@ void ath9k_hw_set_interrupts(struct ath_
 void ath9k_hw_enable_interrupts(struct ath_hw *ah);
 void ath9k_hw_disable_interrupts(struct ath_hw *ah);
 void ath9k_hw_kill_interrupts(struct ath_hw *ah);
+void ath9k_hw_resume_interrupts(struct ath_hw *ah);
 
 void ar9002_hw_attach_mac_ops(struct ath_hw *ah);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/main.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/main.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -373,21 +373,20 @@ void ath9k_tasklet(unsigned long data)
 	struct ath_common *common = ath9k_hw_common(ah);
 	enum ath_reset_type type;
 	unsigned long flags;
-	u32 status = sc->intrstatus;
+	u32 status;
 	u32 rxmask;
 
+	spin_lock_irqsave(&sc->intr_lock, flags);
+	status = sc->intrstatus;
+	sc->intrstatus = 0;
+	spin_unlock_irqrestore(&sc->intr_lock, flags);
+
 	ath9k_ps_wakeup(sc);
 	spin_lock(&sc->sc_pcu_lock);
 
 	if (status & ATH9K_INT_FATAL) {
 		type = RESET_TYPE_FATAL_INT;
 		ath9k_queue_reset(sc, type);
-
-		/*
-		 * Increment the ref. counter here so that
-		 * interrupts are enabled in the reset routine.
-		 */
-		atomic_inc(&ah->intr_ref_cnt);
 		ath_dbg(common, RESET, "FATAL: Skipping interrupts\n");
 		goto out;
 	}
@@ -403,11 +402,6 @@ void ath9k_tasklet(unsigned long data)
 			type = RESET_TYPE_BB_WATCHDOG;
 			ath9k_queue_reset(sc, type);
 
-			/*
-			 * Increment the ref. counter here so that
-			 * interrupts are enabled in the reset routine.
-			 */
-			atomic_inc(&ah->intr_ref_cnt);
 			ath_dbg(common, RESET,
 				"BB_WATCHDOG: Skipping interrupts\n");
 			goto out;
@@ -420,7 +414,6 @@ void ath9k_tasklet(unsigned long data)
 		if ((sc->gtt_cnt >= MAX_GTT_CNT) && !ath9k_hw_check_alive(ah)) {
 			type = RESET_TYPE_TX_GTT;
 			ath9k_queue_reset(sc, type);
-			atomic_inc(&ah->intr_ref_cnt);
 			ath_dbg(common, RESET,
 				"GTT: Skipping interrupts\n");
 			goto out;
@@ -477,7 +470,7 @@ void ath9k_tasklet(unsigned long data)
 	ath9k_btcoex_handle_interrupt(sc, status);
 
 	/* re-enable hardware interrupt */
-	ath9k_hw_enable_interrupts(ah);
+	ath9k_hw_resume_interrupts(ah);
 out:
 	spin_unlock(&sc->sc_pcu_lock);
 	ath9k_ps_restore(sc);
@@ -541,7 +534,9 @@ irqreturn_t ath_isr(int irq, void *dev)
 		return IRQ_NONE;
 
 	/* Cache the status */
-	sc->intrstatus = status;
+	spin_lock(&sc->intr_lock);
+	sc->intrstatus |= status;
+	spin_unlock(&sc->intr_lock);
 
 	if (status & SCHED_INTR)
 		sched = true;
@@ -587,7 +582,7 @@ chip_reset:
 
 	if (sched) {
 		/* turn off every interrupt */
-		ath9k_hw_disable_interrupts(ah);
+		ath9k_hw_kill_interrupts(ah);
 		tasklet_schedule(&sc->intr_tq);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/pci.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/pci.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -26,7 +26,6 @@ static const struct pci_device_id ath_pc
 	{ PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI   */
 	{ PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
 	{ PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI   */
-	{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
 
 #ifdef CONFIG_ATH9K_PCOEM
 	/* Mini PCI AR9220 MB92 cards: Compex WLM200NX, Wistron DNMA-92 */
@@ -37,7 +36,7 @@ static const struct pci_device_id ath_pc
 	  .driver_data = ATH9K_PCI_LED_ACT_HI },
 #endif
 
-	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
+	{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
 
 #ifdef CONFIG_ATH9K_PCOEM
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
@@ -85,7 +84,11 @@ static const struct pci_device_id ath_pc
 			 0x10CF, /* Fujitsu */
 			 0x1536),
 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
+#endif
 
+	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
+
+#ifdef CONFIG_ATH9K_PCOEM
 	/* AR9285 card for Asus */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 			 0x002B,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/rng.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/rng.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/rng.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/rng.c	2017-09-27 08:40:05.000000000 -0400
@@ -120,6 +120,8 @@ void ath9k_rng_start(struct ath_softc *s
 
 void ath9k_rng_stop(struct ath_softc *sc)
 {
-	if (sc->rng_task)
+	if (sc->rng_task) {
 		kthread_stop(sc->rng_task);
+		sc->rng_task = NULL;
+	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/tx99.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/tx99.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/tx99.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/tx99.c	2017-09-27 08:40:05.000000000 -0400
@@ -189,22 +189,27 @@ static ssize_t write_file_tx99(struct fi
 	if (strtobool(buf, &start))
 		return -EINVAL;
 
+	mutex_lock(&sc->mutex);
+
 	if (start == sc->tx99_state) {
 		if (!start)
-			return count;
+			goto out;
 		ath_dbg(common, XMIT, "Resetting TX99\n");
 		ath9k_tx99_deinit(sc);
 	}
 
 	if (!start) {
 		ath9k_tx99_deinit(sc);
-		return count;
+		goto out;
 	}
 
 	r = ath9k_tx99_init(sc);
-	if (r)
+	if (r) {
+		mutex_unlock(&sc->mutex);
 		return r;
-
+	}
+out:
+	mutex_unlock(&sc->mutex);
 	return count;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/xmit.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/xmit.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/ath9k/xmit.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/ath9k/xmit.c	2017-09-27 08:40:05.000000000 -0400
@@ -2787,7 +2787,7 @@ void ath_tx_edma_tasklet(struct ath_soft
 		fifo_list = &txq->txq_fifo[txq->txq_tailidx];
 		if (list_empty(fifo_list)) {
 			ath_txq_unlock(sc, txq);
-			return;
+			break;
 		}
 
 		bf = list_first_entry(fifo_list, struct ath_buf, list);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ath/wil6210/main.c linux-libre-4.9.52-gnu/drivers/net/wireless/ath/wil6210/main.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ath/wil6210/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ath/wil6210/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -384,18 +384,19 @@ static void wil_fw_error_worker(struct w
 
 	wil->last_fw_recovery = jiffies;
 
+	wil_info(wil, "fw error recovery requested (try %d)...\n",
+		 wil->recovery_count);
+	if (!no_fw_recovery)
+		wil->recovery_state = fw_recovery_running;
+	if (wil_wait_for_recovery(wil) != 0)
+		return;
+
 	mutex_lock(&wil->mutex);
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_MONITOR:
-		wil_info(wil, "fw error recovery requested (try %d)...\n",
-			 wil->recovery_count);
-		if (!no_fw_recovery)
-			wil->recovery_state = fw_recovery_running;
-		if (0 != wil_wait_for_recovery(wil))
-			break;
-
+		/* silent recovery, upper layers will see disconnect */
 		__wil_down(wil);
 		__wil_up(wil);
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c	2017-09-27 08:40:05.000000000 -0400
@@ -705,7 +705,7 @@ done:
 int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev,
 			   struct sk_buff_head *pktq, uint totlen)
 {
-	struct sk_buff *glom_skb;
+	struct sk_buff *glom_skb = NULL;
 	struct sk_buff *skb;
 	u32 addr = sdiodev->sbwad;
 	int err = 0;
@@ -726,10 +726,8 @@ int brcmf_sdiod_recv_chain(struct brcmf_
 			return -ENOMEM;
 		err = brcmf_sdiod_buffrw(sdiodev, SDIO_FUNC_2, false, addr,
 					 glom_skb);
-		if (err) {
-			brcmu_pkt_buf_free_skb(glom_skb);
+		if (err)
 			goto done;
-		}
 
 		skb_queue_walk(pktq, skb) {
 			memcpy(skb->data, glom_skb->data, skb->len);
@@ -740,6 +738,7 @@ int brcmf_sdiod_recv_chain(struct brcmf_
 					    pktq);
 
 done:
+	brcmu_pkt_buf_free_skb(glom_skb);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c	2017-09-27 08:40:05.000000000 -0400
@@ -4928,6 +4928,11 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wip
 		cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
 					GFP_KERNEL);
 	} else if (ieee80211_is_action(mgmt->frame_control)) {
+		if (len > BRCMF_FIL_ACTION_FRAME_SIZE + DOT11_MGMT_HDR_LEN) {
+			brcmf_err("invalid action frame length\n");
+			err = -EINVAL;
+			goto exit;
+		}
 		af_params = kzalloc(sizeof(*af_params), GFP_KERNEL);
 		if (af_params == NULL) {
 			brcmf_err("unable to allocate frame\n");
@@ -5913,7 +5918,6 @@ static int brcmf_construct_chaninfo(stru
 	u32 i, j;
 	u32 total;
 	u32 chaninfo;
-	u32 index;
 
 	pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
 
@@ -5961,33 +5965,36 @@ static int brcmf_construct_chaninfo(stru
 		    ch.bw == BRCMU_CHAN_BW_80)
 			continue;
 
-		channel = band->channels;
-		index = band->n_channels;
+		channel = NULL;
 		for (j = 0; j < band->n_channels; j++) {
-			if (channel[j].hw_value == ch.control_ch_num) {
-				index = j;
+			if (band->channels[j].hw_value == ch.control_ch_num) {
+				channel = &band->channels[j];
 				break;
 			}
 		}
-		channel[index].center_freq =
-			ieee80211_channel_to_frequency(ch.control_ch_num,
-						       band->band);
-		channel[index].hw_value = ch.control_ch_num;
+		if (!channel) {
+			/* It seems firmware supports some channel we never
+			 * considered. Something new in IEEE standard?
+			 */
+			brcmf_err("Ignoring unexpected firmware channel %d\n",
+				  ch.control_ch_num);
+			continue;
+		}
 
 		/* assuming the chanspecs order is HT20,
 		 * HT40 upper, HT40 lower, and VHT80.
 		 */
 		if (ch.bw == BRCMU_CHAN_BW_80) {
-			channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
+			channel->flags &= ~IEEE80211_CHAN_NO_80MHZ;
 		} else if (ch.bw == BRCMU_CHAN_BW_40) {
-			brcmf_update_bw40_channel_flag(&channel[index], &ch);
+			brcmf_update_bw40_channel_flag(channel, &ch);
 		} else {
 			/* enable the channel and disable other bandwidths
 			 * for now as mentioned order assure they are enabled
 			 * for subsequent chanspecs.
 			 */
-			channel[index].flags = IEEE80211_CHAN_NO_HT40 |
-					       IEEE80211_CHAN_NO_80MHZ;
+			channel->flags = IEEE80211_CHAN_NO_HT40 |
+					 IEEE80211_CHAN_NO_80MHZ;
 			ch.bw = BRCMU_CHAN_BW_20;
 			cfg->d11inf.encchspec(&ch);
 			chaninfo = ch.chspec;
@@ -5995,11 +6002,11 @@ static int brcmf_construct_chaninfo(stru
 						       &chaninfo);
 			if (!err) {
 				if (chaninfo & WL_CHAN_RADAR)
-					channel[index].flags |=
+					channel->flags |=
 						(IEEE80211_CHAN_RADAR |
 						 IEEE80211_CHAN_NO_IR);
 				if (chaninfo & WL_CHAN_PASSIVE)
-					channel[index].flags |=
+					channel->flags |=
 						IEEE80211_CHAN_NO_IR;
 			}
 		}
@@ -6869,7 +6876,7 @@ struct brcmf_cfg80211_info *brcmf_cfg802
 	wiphy = wiphy_new(ops, sizeof(struct brcmf_cfg80211_info));
 	if (!wiphy) {
 		brcmf_err("Could not allocate wiphy device\n");
-		return NULL;
+		goto ops_out;
 	}
 	memcpy(wiphy->perm_addr, drvr->mac, ETH_ALEN);
 	set_wiphy_dev(wiphy, busdev);
@@ -7003,6 +7010,7 @@ priv_out:
 	ifp->vif = NULL;
 wiphy_out:
 	brcmf_free_wiphy(wiphy);
+ops_out:
 	kfree(ops);
 	return NULL;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -198,7 +198,7 @@ static netdev_tx_t brcmf_netdev_start_xm
 	int ret;
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_pub *drvr = ifp->drvr;
-	struct ethhdr *eh = (struct ethhdr *)(skb->data);
+	struct ethhdr *eh;
 
 	brcmf_dbg(DATA, "Enter, bsscfgidx=%d\n", ifp->bsscfgidx);
 
@@ -211,22 +211,13 @@ static netdev_tx_t brcmf_netdev_start_xm
 		goto done;
 	}
 
-	/* Make sure there's enough room for any header */
-	if (skb_headroom(skb) < drvr->hdrlen) {
-		struct sk_buff *skb2;
-
-		brcmf_dbg(INFO, "%s: insufficient headroom\n",
+	/* Make sure there's enough writable headroom*/
+	ret = skb_cow_head(skb, drvr->hdrlen);
+	if (ret < 0) {
+		brcmf_err("%s: skb_cow_head failed\n",
 			  brcmf_ifname(ifp));
-		drvr->bus_if->tx_realloc++;
-		skb2 = skb_realloc_headroom(skb, drvr->hdrlen);
 		dev_kfree_skb(skb);
-		skb = skb2;
-		if (skb == NULL) {
-			brcmf_err("%s: skb_realloc_headroom failed\n",
-				  brcmf_ifname(ifp));
-			ret = -ENOMEM;
-			goto done;
-		}
+		goto done;
 	}
 
 	/* validate length for ether packet */
@@ -236,6 +227,8 @@ static netdev_tx_t brcmf_netdev_start_xm
 		goto done;
 	}
 
+	eh = (struct ethhdr *)(skb->data);
+
 	if (eh->h_proto == htons(ETH_P_PAE))
 		atomic_inc(&ifp->pend_8021x_cnt);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c	2016-12-11 17:51:39.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c	2017-09-27 14:58:31.000000000 -0400
@@ -442,7 +442,7 @@ struct brcmf_fw {
 	const char *nvram_name;
 	u16 domain_nr;
 	u16 bus_nr;
-	void (*done)(struct device *dev, const struct firmware *fw,
+	void (*done)(struct device *dev, int err, const struct firmware *fw,
 		     void *nvram_image, u32 nvram_len);
 };
 
@@ -477,52 +477,51 @@ static void brcmf_fw_request_nvram_done(
 	if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
 		goto fail;
 
-	fwctx->done(fwctx->dev, fwctx->code, nvram, nvram_length);
+	fwctx->done(fwctx->dev, 0, fwctx->code, nvram, nvram_length);
 	kfree(fwctx);
 	return;
 
 fail:
 	brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev));
 	release_firmware(fwctx->code);
-	device_release_driver(fwctx->dev);
+	fwctx->done(fwctx->dev, -ENOENT, NULL, NULL, 0);
 	kfree(fwctx);
 }
 
 static void brcmf_fw_request_code_done(const struct firmware *fw, void *ctx)
 {
 	struct brcmf_fw *fwctx = ctx;
-	int ret;
+	int ret = 0;
 
 	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
-	if (!fw)
+	if (!fw) {
+		ret = -ENOENT;
 		goto fail;
-
-	/* only requested code so done here */
-	if (!(fwctx->flags & BRCMF_FW_REQUEST_NVRAM)) {
-		fwctx->done(fwctx->dev, fw, NULL, 0);
-		kfree(fwctx);
-		return;
 	}
+	/* only requested code so done here */
+	if (!(fwctx->flags & BRCMF_FW_REQUEST_NVRAM))
+		goto done;
+
 	fwctx->code = fw;
 	ret = reject_firmware_nowait(THIS_MODULE, true, fwctx->nvram_name,
 				      fwctx->dev, GFP_KERNEL, fwctx,
 				      brcmf_fw_request_nvram_done);
 
-	if (!ret)
-		return;
-
-	brcmf_fw_request_nvram_done(NULL, fwctx);
+	/* pass NULL to nvram callback for bcm47xx fallback */
+	if (ret)
+		brcmf_fw_request_nvram_done(NULL, fwctx);
 	return;
 
 fail:
 	brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev));
-	device_release_driver(fwctx->dev);
+done:
+	fwctx->done(fwctx->dev, ret, fw, NULL, 0);
 	kfree(fwctx);
 }
 
 int brcmf_fw_get_firmwares_pcie(struct device *dev, u16 flags,
 				const char *code, const char *nvram,
-				void (*fw_cb)(struct device *dev,
+				void (*fw_cb)(struct device *dev, int err,
 					      const struct firmware *fw,
 					      void *nvram_image, u32 nvram_len),
 				u16 domain_nr, u16 bus_nr)
@@ -555,7 +554,7 @@ int brcmf_fw_get_firmwares_pcie(struct d
 
 int brcmf_fw_get_firmwares(struct device *dev, u16 flags,
 			   const char *code, const char *nvram,
-			   void (*fw_cb)(struct device *dev,
+			   void (*fw_cb)(struct device *dev, int err,
 					 const struct firmware *fw,
 					 void *nvram_image, u32 nvram_len))
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h	2016-12-11 17:51:41.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h	2017-09-27 14:58:35.000000000 -0400
@@ -73,13 +73,13 @@ void brcmf_fw_nvram_free(void *nvram);
  */
 int brcmf_fw_get_firmwares_pcie(struct device *dev, u16 flags,
 				const char *code, const char *nvram,
-				void (*fw_cb)(struct device *dev,
+				void (*fw_cb)(struct device *dev, int err,
 					      const struct firmware *fw,
 					      void *nvram_image, u32 nvram_len),
 				u16 domain_nr, u16 bus_nr);
 int brcmf_fw_get_firmwares(struct device *dev, u16 flags,
 			   const char *code, const char *nvram,
-			   void (*fw_cb)(struct device *dev,
+			   void (*fw_cb)(struct device *dev, int err,
 					 const struct firmware *fw,
 					 void *nvram_image, u32 nvram_len));
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c	2017-09-27 08:40:05.000000000 -0400
@@ -2238,14 +2238,16 @@ int brcmf_p2p_del_vif(struct wiphy *wiph
 	struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
 	struct brcmf_p2p_info *p2p = &cfg->p2p;
 	struct brcmf_cfg80211_vif *vif;
+	enum nl80211_iftype iftype;
 	bool wait_for_disable = false;
 	int err;
 
 	brcmf_dbg(TRACE, "delete P2P vif\n");
 	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 
+	iftype = vif->wdev.iftype;
 	brcmf_cfg80211_arm_vif_event(cfg, vif);
-	switch (vif->wdev.iftype) {
+	switch (iftype) {
 	case NL80211_IFTYPE_P2P_CLIENT:
 		if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state))
 			wait_for_disable = true;
@@ -2275,7 +2277,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiph
 					    BRCMF_P2P_DISABLE_TIMEOUT);
 
 	err = 0;
-	if (vif->wdev.iftype != NL80211_IFTYPE_P2P_DEVICE) {
+	if (iftype != NL80211_IFTYPE_P2P_DEVICE) {
 		brcmf_vif_clear_mgmt_ies(vif);
 		err = brcmf_p2p_release_p2p_if(vif);
 	}
@@ -2291,7 +2293,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiph
 	brcmf_remove_interface(vif->ifp, true);
 
 	brcmf_cfg80211_arm_vif_event(cfg, NULL);
-	if (vif->wdev.iftype != NL80211_IFTYPE_P2P_DEVICE)
+	if (iftype != NL80211_IFTYPE_P2P_DEVICE)
 		p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL;
 
 	return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c	2016-12-11 17:51:52.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c	2017-09-27 14:58:54.000000000 -0400
@@ -1618,16 +1618,23 @@ static const struct brcmf_buscore_ops br
 	.write32 = brcmf_pcie_buscore_write32,
 };
 
-static void brcmf_pcie_setup(struct device *dev, const struct firmware *fw,
+static void brcmf_pcie_setup(struct device *dev, int ret,
+			     const struct firmware *fw,
 			     void *nvram, u32 nvram_len)
 {
-	struct brcmf_bus *bus = dev_get_drvdata(dev);
-	struct brcmf_pciedev *pcie_bus_dev = bus->bus_priv.pcie;
-	struct brcmf_pciedev_info *devinfo = pcie_bus_dev->devinfo;
+	struct brcmf_bus *bus;
+	struct brcmf_pciedev *pcie_bus_dev;
+	struct brcmf_pciedev_info *devinfo;
 	struct brcmf_commonring **flowrings;
-	int ret;
 	u32 i;
 
+	/* check firmware loading result */
+	if (ret)
+		goto fail;
+
+	bus = dev_get_drvdata(dev);
+	pcie_bus_dev = bus->bus_priv.pcie;
+	devinfo = pcie_bus_dev->devinfo;
 	brcmf_pcie_attach(devinfo);
 
 	/* Some of the firmwares have the size of the memory of the device
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c	2016-12-11 17:51:46.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c	2017-09-27 14:58:42.000000000 -0400
@@ -1660,7 +1660,7 @@ static u8 brcmf_sdio_rxglom(struct brcmf
 					   pfirst->len, pfirst->next,
 					   pfirst->prev);
 			skb_unlink(pfirst, &bus->glom);
-			if (brcmf_sdio_fromevntchan(pfirst->data))
+			if (brcmf_sdio_fromevntchan(&dptr[SDPCM_HWHDR_LEN]))
 				brcmf_rx_event(bus->sdiodev->dev, pfirst);
 			else
 				brcmf_rx_frame(bus->sdiodev->dev, pfirst,
@@ -3975,21 +3975,26 @@ static const struct brcmf_bus_ops brcmf_
 	.get_memdump = brcmf_sdio_bus_get_memdump,
 };
 
-static void brcmf_sdio_firmware_callback(struct device *dev,
+static void brcmf_sdio_firmware_callback(struct device *dev, int err,
 					 const struct firmware *code,
 					 void *nvram, u32 nvram_len)
 {
-	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
-	struct brcmf_sdio *bus = sdiodev->bus;
-	int err = 0;
+	struct brcmf_bus *bus_if;
+	struct brcmf_sdio_dev *sdiodev;
+	struct brcmf_sdio *bus;
 	u8 saveclk;
 
-	brcmf_dbg(TRACE, "Enter: dev=%s\n", dev_name(dev));
+	brcmf_dbg(TRACE, "Enter: dev=%s, err=%d\n", dev_name(dev), err);
+	bus_if = dev_get_drvdata(dev);
+	sdiodev = bus_if->bus_priv.sdio;
+	if (err)
+		goto fail;
 
 	if (!bus_if->drvr)
 		return;
 
+	bus = sdiodev->bus;
+
 	/* try to download image and nvram to the dongle */
 	bus->alp_only = true;
 	err = brcmf_sdio_download_firmware(bus, code, nvram, nvram_len);
@@ -4076,6 +4081,7 @@ release:
 fail:
 	brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), err);
 	device_release_driver(dev);
+	device_release_driver(&sdiodev->func[2]->dev);
 }
 
 struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
@@ -4155,11 +4161,6 @@ struct brcmf_sdio *brcmf_sdio_probe(stru
 		goto fail;
 	}
 
-	/* allocate scatter-gather table. sg support
-	 * will be disabled upon allocation failure.
-	 */
-	brcmf_sdiod_sgtable_alloc(bus->sdiodev);
-
 	/* Query the F2 block size, set roundup accordingly */
 	bus->blocksize = bus->sdiodev->func[2]->cur_blksize;
 	bus->roundup = min(max_roundup, bus->blocksize);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
--- linux-libre-4.9-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c	2016-12-11 17:51:49.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c	2017-09-27 14:58:48.000000000 -0400
@@ -1158,17 +1158,18 @@ fail:
 	return ret;
 }
 
-static void brcmf_usb_probe_phase2(struct device *dev,
+static void brcmf_usb_probe_phase2(struct device *dev, int ret,
 				   const struct firmware *fw,
 				   void *nvram, u32 nvlen)
 {
 	struct brcmf_bus *bus = dev_get_drvdata(dev);
-	struct brcmf_usbdev_info *devinfo;
-	int ret;
+	struct brcmf_usbdev_info *devinfo = bus->bus_priv.usb->devinfo;
+
+	if (ret)
+		goto error;
 
 	brcmf_dbg(USB, "Start fw downloading\n");
 
-	devinfo = bus->bus_priv.usb->devinfo;
 	ret = check_file(fw->data);
 	if (ret < 0) {
 		brcmf_err("invalid firmware\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/dvm/tx.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/dvm/tx.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/dvm/tx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/dvm/tx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1190,11 +1190,11 @@ void iwlagn_rx_reply_tx(struct iwl_priv
 				next_reclaimed;
 			IWL_DEBUG_TX_REPLY(priv, "Next reclaimed packet:%d\n",
 						  next_reclaimed);
+			iwlagn_check_ratid_empty(priv, sta_id, tid);
 		}
 
 		iwl_trans_reclaim(priv->trans, txq_id, ssn, &skbs);
 
-		iwlagn_check_ratid_empty(priv, sta_id, tid);
 		freed = 0;
 
 		/* process frames */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/d3.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/d3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/d3.c	2017-09-27 08:40:05.000000000 -0400
@@ -1262,12 +1262,15 @@ static int __iwl_mvm_suspend(struct ieee
 	iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
  out:
 	if (ret < 0) {
-		iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
-		if (mvm->restart_fw > 0) {
-			mvm->restart_fw--;
-			ieee80211_restart_hw(mvm->hw);
-		}
 		iwl_mvm_free_nd(mvm);
+
+		if (!unified_image) {
+			iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
+			if (mvm->restart_fw > 0) {
+				mvm->restart_fw--;
+				ieee80211_restart_hw(mvm->hw);
+			}
+		}
 	}
  out_noreset:
 	mutex_unlock(&mvm->mutex);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1056,6 +1056,8 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_
 
 	if (ret)
 		return ret;
+	if (count == 0)
+		return 0;
 
 	iwl_mvm_fw_dbg_collect(mvm, FW_DBG_TRIGGER_USER, buf,
 			       (count - 1), NULL);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw.c	2017-09-27 08:40:05.000000000 -0400
@@ -214,6 +214,10 @@ static int iwl_fill_paging_mem(struct iw
 	memcpy(page_address(mvm->fw_paging_db[0].fw_paging_block),
 	       image->sec[sec_idx].data,
 	       mvm->fw_paging_db[0].fw_paging_size);
+	dma_sync_single_for_device(mvm->trans->dev,
+				   mvm->fw_paging_db[0].fw_paging_phys,
+				   mvm->fw_paging_db[0].fw_paging_size,
+				   DMA_BIDIRECTIONAL);
 
 	IWL_DEBUG_FW(mvm,
 		     "Paging: copied %d CSS bytes to first block\n",
@@ -228,9 +232,16 @@ static int iwl_fill_paging_mem(struct iw
 	 * loop stop at num_of_paging_blk since that last block is not full.
 	 */
 	for (idx = 1; idx < mvm->num_of_paging_blk; idx++) {
-		memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
+		struct iwl_fw_paging *block = &mvm->fw_paging_db[idx];
+
+		memcpy(page_address(block->fw_paging_block),
 		       image->sec[sec_idx].data + offset,
-		       mvm->fw_paging_db[idx].fw_paging_size);
+		       block->fw_paging_size);
+		dma_sync_single_for_device(mvm->trans->dev,
+					   block->fw_paging_phys,
+					   block->fw_paging_size,
+					   DMA_BIDIRECTIONAL);
+
 
 		IWL_DEBUG_FW(mvm,
 			     "Paging: copied %d paging bytes to block %d\n",
@@ -242,9 +253,15 @@ static int iwl_fill_paging_mem(struct iw
 
 	/* copy the last paging block */
 	if (mvm->num_of_pages_in_last_blk > 0) {
-		memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
+		struct iwl_fw_paging *block = &mvm->fw_paging_db[idx];
+
+		memcpy(page_address(block->fw_paging_block),
 		       image->sec[sec_idx].data + offset,
 		       FW_PAGING_SIZE * mvm->num_of_pages_in_last_blk);
+		dma_sync_single_for_device(mvm->trans->dev,
+					   block->fw_paging_phys,
+					   block->fw_paging_size,
+					   DMA_BIDIRECTIONAL);
 
 		IWL_DEBUG_FW(mvm,
 			     "Paging: copied %d pages in the last block %d\n",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/fw-dbg.c	2017-09-27 08:40:05.000000000 -0400
@@ -784,12 +784,16 @@ void iwl_mvm_fw_error_dump(struct iwl_mv
 			struct iwl_fw_error_dump_paging *paging;
 			struct page *pages =
 				mvm->fw_paging_db[i].fw_paging_block;
+			dma_addr_t addr = mvm->fw_paging_db[i].fw_paging_phys;
 
 			dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);
 			dump_data->len = cpu_to_le32(sizeof(*paging) +
 						     PAGING_BLOCK_SIZE);
 			paging = (void *)dump_data->data;
 			paging->index = cpu_to_le32(i);
+			dma_sync_single_for_cpu(mvm->trans->dev, addr,
+						PAGING_BLOCK_SIZE,
+						DMA_BIDIRECTIONAL);
 			memcpy(paging->data, page_address(pages),
 			       PAGING_BLOCK_SIZE);
 			dump_data = iwl_fw_error_next_data(dump_data);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c	2017-09-27 08:40:05.000000000 -0400
@@ -409,7 +409,7 @@ static void iwl_mvm_release_frames(struc
 
 	/* ignore nssn smaller than head sn - this can happen due to timeout */
 	if (iwl_mvm_is_sn_less(nssn, ssn, reorder_buf->buf_size))
-		return;
+		goto set_timer;
 
 	while (iwl_mvm_is_sn_less(ssn, nssn, reorder_buf->buf_size)) {
 		int index = ssn % reorder_buf->buf_size;
@@ -432,6 +432,7 @@ static void iwl_mvm_release_frames(struc
 	}
 	reorder_buf->head_sn = nssn;
 
+set_timer:
 	if (reorder_buf->num_stored && !reorder_buf->removed) {
 		u16 index = reorder_buf->head_sn % reorder_buf->buf_size;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/sta.c	2017-09-27 08:40:05.000000000 -0400
@@ -1144,9 +1144,10 @@ static void iwl_mvm_realloc_queues_after
 		.frame_limit = IWL_FRAME_LIMIT,
 	};
 
-	/* Make sure reserved queue is still marked as such (or allocated) */
-	mvm->queue_info[mvm_sta->reserved_queue].status =
-		IWL_MVM_QUEUE_RESERVED;
+	/* Make sure reserved queue is still marked as such (if allocated) */
+	if (mvm_sta->reserved_queue != IEEE80211_INVAL_HW_QUEUE)
+		mvm->queue_info[mvm_sta->reserved_queue].status =
+			IWL_MVM_QUEUE_RESERVED;
 
 	for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
 		struct iwl_mvm_tid_data *tid_data = &mvm_sta->tid_data[i];
@@ -1465,6 +1466,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
+	u8 sta_id = mvm_sta->sta_id;
 	int ret;
 
 	lockdep_assert_held(&mvm->mutex);
@@ -1473,7 +1475,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 		kfree(mvm_sta->dup_data);
 
 	if ((vif->type == NL80211_IFTYPE_STATION &&
-	     mvmvif->ap_sta_id == mvm_sta->sta_id) ||
+	     mvmvif->ap_sta_id == sta_id) ||
 	    iwl_mvm_is_dqa_supported(mvm)){
 		ret = iwl_mvm_drain_sta(mvm, mvm_sta, true);
 		if (ret)
@@ -1496,6 +1498,15 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 			iwl_mvm_disable_sta_queues(mvm, vif, mvm_sta);
 
 			/*
+			 * If pending_frames is set at this point - it must be
+			 * driver internal logic error, since queues are empty
+			 * and removed successuly.
+			 * warn on it but set it to 0 anyway to avoid station
+			 * not being removed later in the function
+			 */
+			WARN_ON(atomic_xchg(&mvm->pending_frames[sta_id], 0));
+
+			/*
 			 * If no traffic has gone through the reserved TXQ - it
 			 * is still marked as IWL_MVM_QUEUE_RESERVED, and
 			 * should be manually marked as free again
@@ -1505,7 +1516,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 			if (WARN((*status != IWL_MVM_QUEUE_RESERVED) &&
 				 (*status != IWL_MVM_QUEUE_FREE),
 				 "sta_id %d reserved txq %d status %d",
-				 mvm_sta->sta_id, reserved_txq, *status)) {
+				 sta_id, reserved_txq, *status)) {
 				spin_unlock_bh(&mvm->queue_info_lock);
 				return -EINVAL;
 			}
@@ -1515,7 +1526,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 		}
 
 		if (vif->type == NL80211_IFTYPE_STATION &&
-		    mvmvif->ap_sta_id == mvm_sta->sta_id) {
+		    mvmvif->ap_sta_id == sta_id) {
 			/* if associated - we can't remove the AP STA now */
 			if (vif->bss_conf.assoc)
 				return ret;
@@ -1524,7 +1535,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 			mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 
 			/* clear d0i3_ap_sta_id if no longer relevant */
-			if (mvm->d0i3_ap_sta_id == mvm_sta->sta_id)
+			if (mvm->d0i3_ap_sta_id == sta_id)
 				mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
 		}
 	}
@@ -1533,7 +1544,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 	 * This shouldn't happen - the TDLS channel switch should be canceled
 	 * before the STA is removed.
 	 */
-	if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == mvm_sta->sta_id)) {
+	if (WARN_ON_ONCE(mvm->tdls_cs.peer.sta_id == sta_id)) {
 		mvm->tdls_cs.peer.sta_id = IWL_MVM_STATION_COUNT;
 		cancel_delayed_work(&mvm->tdls_cs.dwork);
 	}
@@ -1543,21 +1554,20 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 	 * calls the drain worker.
 	 */
 	spin_lock_bh(&mvm_sta->lock);
+
 	/*
 	 * There are frames pending on the AC queues for this station.
 	 * We need to wait until all the frames are drained...
 	 */
-	if (atomic_read(&mvm->pending_frames[mvm_sta->sta_id])) {
-		rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
+	if (atomic_read(&mvm->pending_frames[sta_id])) {
+		rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id],
 				   ERR_PTR(-EBUSY));
 		spin_unlock_bh(&mvm_sta->lock);
 
 		/* disable TDLS sta queues on drain complete */
 		if (sta->tdls) {
-			mvm->tfd_drained[mvm_sta->sta_id] =
-							mvm_sta->tfd_queue_msk;
-			IWL_DEBUG_TDLS(mvm, "Draining TDLS sta %d\n",
-				       mvm_sta->sta_id);
+			mvm->tfd_drained[sta_id] = mvm_sta->tfd_queue_msk;
+			IWL_DEBUG_TDLS(mvm, "Draining TDLS sta %d\n", sta_id);
 		}
 
 		ret = iwl_mvm_drain_sta(mvm, mvm_sta, true);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tt.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tt.c	2017-09-27 08:40:05.000000000 -0400
@@ -843,8 +843,10 @@ static void iwl_mvm_thermal_zone_unregis
 		return;
 
 	IWL_DEBUG_TEMP(mvm, "Thermal zone device unregister\n");
-	thermal_zone_device_unregister(mvm->tz_device.tzone);
-	mvm->tz_device.tzone = NULL;
+	if (mvm->tz_device.tzone) {
+		thermal_zone_device_unregister(mvm->tz_device.tzone);
+		mvm->tz_device.tzone = NULL;
+	}
 }
 
 static void iwl_mvm_cooling_device_unregister(struct iwl_mvm *mvm)
@@ -853,8 +855,10 @@ static void iwl_mvm_cooling_device_unreg
 		return;
 
 	IWL_DEBUG_TEMP(mvm, "Cooling device unregister\n");
-	thermal_cooling_device_unregister(mvm->cooling_dev.cdev);
-	mvm->cooling_dev.cdev = NULL;
+	if (mvm->cooling_dev.cdev) {
+		thermal_cooling_device_unregister(mvm->cooling_dev.cdev);
+		mvm->cooling_dev.cdev = NULL;
+	}
 }
 #endif /* CONFIG_THERMAL */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/mvm/tx.c	2017-09-27 08:40:05.000000000 -0400
@@ -202,7 +202,6 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *
 			struct iwl_tx_cmd *tx_cmd,
 			struct ieee80211_tx_info *info, u8 sta_id)
 {
-	struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (void *)skb->data;
 	__le16 fc = hdr->frame_control;
 	u32 tx_flags = le32_to_cpu(tx_cmd->tx_flags);
@@ -284,9 +283,8 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *
 		tx_flags |= TX_CMD_FLG_WRITE_TX_POWER;
 
 	tx_cmd->tx_flags = cpu_to_le32(tx_flags);
-	/* Total # bytes to be transmitted */
-	tx_cmd->len = cpu_to_le16((u16)skb->len +
-		(uintptr_t)skb_info->driver_data[0]);
+	/* Total # bytes to be transmitted - PCIe code will adjust for A-MSDU */
+	tx_cmd->len = cpu_to_le16((u16)skb->len);
 	tx_cmd->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
 	tx_cmd->sta_id = sta_id;
 
@@ -459,7 +457,6 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mv
 		      struct ieee80211_sta *sta, u8 sta_id)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
 	struct iwl_device_cmd *dev_cmd;
 	struct iwl_tx_cmd *tx_cmd;
 
@@ -479,12 +476,18 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mv
 
 	iwl_mvm_set_tx_cmd_rate(mvm, tx_cmd, info, sta, hdr->frame_control);
 
+	return dev_cmd;
+}
+
+static void iwl_mvm_skb_prepare_status(struct sk_buff *skb,
+				       struct iwl_device_cmd *cmd)
+{
+	struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
+
 	memset(&skb_info->status, 0, sizeof(skb_info->status));
 	memset(skb_info->driver_data, 0, sizeof(skb_info->driver_data));
 
-	skb_info->driver_data[1] = dev_cmd;
-
-	return dev_cmd;
+	skb_info->driver_data[1] = cmd;
 }
 
 static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm,
@@ -550,9 +553,6 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mv
 			  info.hw_queue != info.control.vif->cab_queue)))
 		return -1;
 
-	/* This holds the amsdu headers length */
-	skb_info->driver_data[0] = (void *)(uintptr_t)0;
-
 	queue = info.hw_queue;
 
 	/*
@@ -563,9 +563,10 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mv
 	 * (this is not possible for unicast packets as a TLDS discovery
 	 * response are sent without a station entry); otherwise use the
 	 * AUX station.
-	 * In DQA mode, if vif is of type STATION and frames are not multicast,
-	 * they should be sent from the BSS queue. For example, TDLS setup
-	 * frames should be sent on this queue, as they go through the AP.
+	 * In DQA mode, if vif is of type STATION and frames are not multicast
+	 * or offchannel, they should be sent from the BSS queue.
+	 * For example, TDLS setup frames should be sent on this queue,
+	 * as they go through the AP.
 	 */
 	sta_id = mvm->aux_sta.sta_id;
 	if (info.control.vif) {
@@ -587,7 +588,8 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mv
 			if (ap_sta_id != IWL_MVM_STATION_COUNT)
 				sta_id = ap_sta_id;
 		} else if (iwl_mvm_is_dqa_supported(mvm) &&
-			   info.control.vif->type == NL80211_IFTYPE_STATION) {
+			   info.control.vif->type == NL80211_IFTYPE_STATION &&
+			   queue != mvm->aux_queue) {
 			queue = IWL_MVM_DQA_BSS_CLIENT_QUEUE;
 		}
 	}
@@ -598,6 +600,9 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mv
 	if (!dev_cmd)
 		return -1;
 
+	/* From now on, we cannot access info->control */
+	iwl_mvm_skb_prepare_status(skb, dev_cmd);
+
 	tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
 
 	/* Copy MAC header from skb into command buffer */
@@ -634,7 +639,7 @@ static int iwl_mvm_tx_tso(struct iwl_mvm
 	unsigned int num_subframes, tcp_payload_len, subf_len, max_amsdu_len;
 	bool ipv4 = (skb->protocol == htons(ETH_P_IP));
 	u16 ip_base_id = ipv4 ? ntohs(ip_hdr(skb)->id) : 0;
-	u16 amsdu_add, snap_ip_tcp, pad, i = 0;
+	u16 snap_ip_tcp, pad, i = 0;
 	unsigned int dbg_max_amsdu_len;
 	netdev_features_t netdev_features = NETIF_F_CSUM_MASK | NETIF_F_SG;
 	u8 *qc, tid, txf;
@@ -736,21 +741,6 @@ static int iwl_mvm_tx_tso(struct iwl_mvm
 
 	/* This skb fits in one single A-MSDU */
 	if (num_subframes * mss >= tcp_payload_len) {
-		struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
-
-		/*
-		 * Compute the length of all the data added for the A-MSDU.
-		 * This will be used to compute the length to write in the TX
-		 * command. We have: SNAP + IP + TCP for n -1 subframes and
-		 * ETH header for n subframes. Note that the original skb
-		 * already had one set of SNAP / IP / TCP headers.
-		 */
-		num_subframes = DIV_ROUND_UP(tcp_payload_len, mss);
-		amsdu_add = num_subframes * sizeof(struct ethhdr) +
-			(num_subframes - 1) * (snap_ip_tcp + pad);
-		/* This holds the amsdu headers length */
-		skb_info->driver_data[0] = (void *)(uintptr_t)amsdu_add;
-
 		__skb_queue_tail(mpdus_skb, skb);
 		return 0;
 	}
@@ -789,14 +779,6 @@ segment:
 			ip_hdr(tmp)->id = htons(ip_base_id + i * num_subframes);
 
 		if (tcp_payload_len > mss) {
-			struct ieee80211_tx_info *skb_info =
-				IEEE80211_SKB_CB(tmp);
-
-			num_subframes = DIV_ROUND_UP(tcp_payload_len, mss);
-			amsdu_add = num_subframes * sizeof(struct ethhdr) +
-				(num_subframes - 1) * (snap_ip_tcp + pad);
-			skb_info->driver_data[0] =
-				(void *)(uintptr_t)amsdu_add;
 			skb_shinfo(tmp)->gso_size = mss;
 		} else {
 			qc = ieee80211_get_qos_ctl((void *)tmp->data);
@@ -908,7 +890,6 @@ static int iwl_mvm_tx_mpdu(struct iwl_mv
 		goto drop;
 
 	tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
-	/* From now on, we cannot access info->control */
 
 	/*
 	 * we handle that entirely ourselves -- for uAPSD the firmware
@@ -1015,6 +996,9 @@ static int iwl_mvm_tx_mpdu(struct iwl_mv
 	IWL_DEBUG_TX(mvm, "TX to [%d|%d] Q:%d - seq: 0x%x\n", mvmsta->sta_id,
 		     tid, txq_id, IEEE80211_SEQ_TO_SN(seq_number));
 
+	/* From now on, we cannot access info->control */
+	iwl_mvm_skb_prepare_status(skb, dev_cmd);
+
 	if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id))
 		goto drop_unlock_sta;
 
@@ -1024,7 +1008,10 @@ static int iwl_mvm_tx_mpdu(struct iwl_mv
 	spin_unlock(&mvmsta->lock);
 
 	/* Increase pending frames count if this isn't AMPDU */
-	if (!is_ampdu)
+	if ((iwl_mvm_is_dqa_supported(mvm) &&
+	     mvmsta->tid_data[tx_cmd->tid_tspec].state != IWL_AGG_ON &&
+	     mvmsta->tid_data[tx_cmd->tid_tspec].state != IWL_AGG_STARTING) ||
+	    (!iwl_mvm_is_dqa_supported(mvm) && !is_ampdu))
 		atomic_inc(&mvm->pending_frames[mvmsta->sta_id]);
 
 	return 0;
@@ -1040,7 +1027,6 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm,
 		   struct ieee80211_sta *sta)
 {
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
-	struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_tx_info info;
 	struct sk_buff_head mpdus_skbs;
 	unsigned int payload_len;
@@ -1054,9 +1040,6 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm,
 
 	memcpy(&info, skb->cb, sizeof(info));
 
-	/* This holds the amsdu headers length */
-	skb_info->driver_data[0] = (void *)(uintptr_t)0;
-
 	if (!skb_is_gso(skb))
 		return iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
 
@@ -1295,8 +1278,6 @@ static void iwl_mvm_rx_tx_cmd_single(str
 
 		memset(&info->status, 0, sizeof(info->status));
 
-		info->flags &= ~IEEE80211_TX_CTL_AMPDU;
-
 		/* inform mac80211 about what happened with the frame */
 		switch (status & TX_STATUS_MSK) {
 		case TX_STATUS_SUCCESS:
@@ -1319,10 +1300,11 @@ static void iwl_mvm_rx_tx_cmd_single(str
 			(void *)(uintptr_t)le32_to_cpu(tx_resp->initial_rate);
 
 		/* Single frame failure in an AMPDU queue => send BAR */
-		if (txq_id >= mvm->first_agg_queue &&
+		if (info->flags & IEEE80211_TX_CTL_AMPDU &&
 		    !(info->flags & IEEE80211_TX_STAT_ACK) &&
 		    !(info->flags & IEEE80211_TX_STAT_TX_FILTERED))
 			info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
+		info->flags &= ~IEEE80211_TX_CTL_AMPDU;
 
 		/* W/A FW bug: seq_ctl is wrong when the status isn't success */
 		if (status != TX_STATUS_SUCCESS) {
@@ -1357,7 +1339,7 @@ static void iwl_mvm_rx_tx_cmd_single(str
 		ieee80211_tx_status(mvm->hw, skb);
 	}
 
-	if (txq_id >= mvm->first_agg_queue) {
+	if (iwl_mvm_is_dqa_supported(mvm) || txq_id >= mvm->first_agg_queue) {
 		/* If this is an aggregation queue, we use the ssn since:
 		 * ssn = wifi seq_num % 256.
 		 * The seq_ctl is the sequence control of the packet to which
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/drv.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -429,6 +429,7 @@ static const struct pci_device_id iwl_hw
 	{IWL_PCI_DEVICE(0x095B, 0x520A, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x9000, iwl7265_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x095A, 0x9400, iwl7265_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x095A, 0x9E10, iwl7265_2ac_cfg)},
 
 /* 8000 Series */
 	{IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)},
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -279,7 +279,7 @@ struct iwl_txq {
 	bool frozen;
 	u8 active;
 	bool ampdu;
-	bool block;
+	int block;
 	unsigned long wd_timeout;
 	struct sk_buff_head overflow_q;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/trans.c	2017-09-27 08:40:05.000000000 -0400
@@ -868,17 +868,13 @@ static int iwl_pcie_load_cpu_sections(st
 				      int cpu,
 				      int *first_ucode_section)
 {
-	int shift_param;
 	int i, ret = 0;
 	u32 last_read_idx = 0;
 
-	if (cpu == 1) {
-		shift_param = 0;
+	if (cpu == 1)
 		*first_ucode_section = 0;
-	} else {
-		shift_param = 16;
+	else
 		(*first_ucode_section)++;
-	}
 
 	for (i = *first_ucode_section; i < IWL_UCODE_SECTION_MAX; i++) {
 		last_read_idx = i;
@@ -2933,16 +2929,12 @@ struct iwl_trans *iwl_trans_pcie_alloc(s
 				       PCIE_LINK_STATE_CLKPM);
 	}
 
-	if (cfg->mq_rx_supported)
-		addr_size = 64;
-	else
-		addr_size = 36;
-
 	if (cfg->use_tfh) {
+		addr_size = 64;
 		trans_pcie->max_tbs = IWL_TFH_NUM_TBS;
 		trans_pcie->tfd_size = sizeof(struct iwl_tfh_tfd);
-
 	} else {
+		addr_size = 36;
 		trans_pcie->max_tbs = IWL_NUM_OF_TBS;
 		trans_pcie->tfd_size = sizeof(struct iwl_tfd);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/tx.c linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intel/iwlwifi/pcie/tx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intel/iwlwifi/pcie/tx.c	2017-09-27 08:40:05.000000000 -0400
@@ -2096,6 +2096,7 @@ static int iwl_fill_data_tbs_amsdu(struc
 				   struct iwl_cmd_meta *out_meta,
 				   struct iwl_device_cmd *dev_cmd, u16 tb1_len)
 {
+	struct iwl_tx_cmd *tx_cmd = (void *)dev_cmd->payload;
 	struct iwl_trans_pcie *trans_pcie = txq->trans_pcie;
 	struct ieee80211_hdr *hdr = (void *)skb->data;
 	unsigned int snap_ip_tcp_hdrlen, ip_hdrlen, total_len, hdr_room;
@@ -2145,6 +2146,13 @@ static int iwl_fill_data_tbs_amsdu(struc
 	 */
 	skb_pull(skb, hdr_len + iv_len);
 
+	/*
+	 * Remove the length of all the headers that we don't actually
+	 * have in the MPDU by themselves, but that we duplicate into
+	 * all the different MSDUs inside the A-MSDU.
+	 */
+	le16_add_cpu(&tx_cmd->len, -snap_ip_tcp_hdrlen);
+
 	tso_start(skb, &tso);
 
 	while (total_len) {
@@ -2155,7 +2163,7 @@ static int iwl_fill_data_tbs_amsdu(struc
 		unsigned int hdr_tb_len;
 		dma_addr_t hdr_tb_phys;
 		struct tcphdr *tcph;
-		u8 *iph;
+		u8 *iph, *subf_hdrs_start = hdr_page->pos;
 
 		total_len -= data_left;
 
@@ -2216,6 +2224,8 @@ static int iwl_fill_data_tbs_amsdu(struc
 				       hdr_tb_len, false);
 		trace_iwlwifi_dev_tx_tso_chunk(trans->dev, start_hdr,
 					       hdr_tb_len);
+		/* add this subframe's headers' length to the tx_cmd */
+		le16_add_cpu(&tx_cmd->len, hdr_page->pos - subf_hdrs_start);
 
 		/* prepare the start_hdr for the next subframe */
 		start_hdr = hdr_page->pos;
@@ -2408,9 +2418,10 @@ int iwl_trans_pcie_tx(struct iwl_trans *
 		tb1_len = len;
 	}
 
-	/* The first TB points to bi-directional DMA data */
-	memcpy(&txq->first_tb_bufs[txq->write_ptr], &dev_cmd->hdr,
-	       IWL_FIRST_TB_SIZE);
+	/*
+	 * The first TB points to bi-directional DMA data, we'll
+	 * memcpy the data into it later.
+	 */
 	iwl_pcie_txq_build_tfd(trans, txq, tb0_phys,
 			       IWL_FIRST_TB_SIZE, true);
 
@@ -2434,6 +2445,10 @@ int iwl_trans_pcie_tx(struct iwl_trans *
 		goto out_err;
 	}
 
+	/* building the A-MSDU might have changed this data, so memcpy it now */
+	memcpy(&txq->first_tb_bufs[txq->write_ptr], &dev_cmd->hdr,
+	       IWL_FIRST_TB_SIZE);
+
 	tfd = iwl_pcie_get_tfd(trans_pcie, txq, txq->write_ptr);
 	/* Set up entry for this TFD in Tx byte-count array */
 	iwl_pcie_txq_update_byte_cnt_tbl(trans, txq, le16_to_cpu(tx_cmd->len),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intersil/orinoco/mic.c linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/orinoco/mic.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intersil/orinoco/mic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/orinoco/mic.c	2017-09-27 08:40:05.000000000 -0400
@@ -16,7 +16,7 @@
 /********************************************************************/
 int orinoco_mic_init(struct orinoco_private *priv)
 {
-	priv->tx_tfm_mic = crypto_alloc_ahash("michael_mic", 0,
+	priv->tx_tfm_mic = crypto_alloc_shash("michael_mic", 0,
 					      CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_mic)) {
 		printk(KERN_DEBUG "orinoco_mic_init: could not allocate "
@@ -25,7 +25,7 @@ int orinoco_mic_init(struct orinoco_priv
 		return -ENOMEM;
 	}
 
-	priv->rx_tfm_mic = crypto_alloc_ahash("michael_mic", 0,
+	priv->rx_tfm_mic = crypto_alloc_shash("michael_mic", 0,
 					      CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_mic)) {
 		printk(KERN_DEBUG "orinoco_mic_init: could not allocate "
@@ -40,17 +40,16 @@ int orinoco_mic_init(struct orinoco_priv
 void orinoco_mic_free(struct orinoco_private *priv)
 {
 	if (priv->tx_tfm_mic)
-		crypto_free_ahash(priv->tx_tfm_mic);
+		crypto_free_shash(priv->tx_tfm_mic);
 	if (priv->rx_tfm_mic)
-		crypto_free_ahash(priv->rx_tfm_mic);
+		crypto_free_shash(priv->rx_tfm_mic);
 }
 
-int orinoco_mic(struct crypto_ahash *tfm_michael, u8 *key,
+int orinoco_mic(struct crypto_shash *tfm_michael, u8 *key,
 		u8 *da, u8 *sa, u8 priority,
 		u8 *data, size_t data_len, u8 *mic)
 {
-	AHASH_REQUEST_ON_STACK(req, tfm_michael);
-	struct scatterlist sg[2];
+	SHASH_DESC_ON_STACK(desc, tfm_michael);
 	u8 hdr[ETH_HLEN + 2]; /* size of header + padding */
 	int err;
 
@@ -67,18 +66,27 @@ int orinoco_mic(struct crypto_ahash *tfm
 	hdr[ETH_ALEN * 2 + 2] = 0;
 	hdr[ETH_ALEN * 2 + 3] = 0;
 
-	/* Use scatter gather to MIC header and data in one go */
-	sg_init_table(sg, 2);
-	sg_set_buf(&sg[0], hdr, sizeof(hdr));
-	sg_set_buf(&sg[1], data, data_len);
+	desc->tfm = tfm_michael;
+	desc->flags = 0;
 
-	if (crypto_ahash_setkey(tfm_michael, key, MIC_KEYLEN))
-		return -1;
+	err = crypto_shash_setkey(tfm_michael, key, MIC_KEYLEN);
+	if (err)
+		return err;
+
+	err = crypto_shash_init(desc);
+	if (err)
+		return err;
+
+	err = crypto_shash_update(desc, hdr, sizeof(hdr));
+	if (err)
+		return err;
+
+	err = crypto_shash_update(desc, data, data_len);
+	if (err)
+		return err;
+
+	err = crypto_shash_final(desc, mic);
+	shash_desc_zero(desc);
 
-	ahash_request_set_tfm(req, tfm_michael);
-	ahash_request_set_callback(req, 0, NULL, NULL);
-	ahash_request_set_crypt(req, sg, mic, data_len + sizeof(hdr));
-	err = crypto_ahash_digest(req);
-	ahash_request_zero(req);
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intersil/orinoco/mic.h linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/orinoco/mic.h
--- linux-libre-4.9-gnu/drivers/net/wireless/intersil/orinoco/mic.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/orinoco/mic.h	2017-09-27 08:40:05.000000000 -0400
@@ -6,6 +6,7 @@
 #define _ORINOCO_MIC_H_
 
 #include <linux/types.h>
+#include <crypto/hash.h>
 
 #define MICHAEL_MIC_LEN 8
 
@@ -15,7 +16,7 @@ struct crypto_ahash;
 
 int orinoco_mic_init(struct orinoco_private *priv);
 void orinoco_mic_free(struct orinoco_private *priv);
-int orinoco_mic(struct crypto_ahash *tfm_michael, u8 *key,
+int orinoco_mic(struct crypto_shash *tfm_michael, u8 *key,
 		u8 *da, u8 *sa, u8 priority,
 		u8 *data, size_t data_len, u8 *mic);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intersil/orinoco/orinoco.h linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/orinoco/orinoco.h
--- linux-libre-4.9-gnu/drivers/net/wireless/intersil/orinoco/orinoco.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/orinoco/orinoco.h	2017-09-27 08:40:05.000000000 -0400
@@ -152,8 +152,8 @@ struct orinoco_private {
 	u8 *wpa_ie;
 	int wpa_ie_len;
 
-	struct crypto_ahash *rx_tfm_mic;
-	struct crypto_ahash *tx_tfm_mic;
+	struct crypto_shash *rx_tfm_mic;
+	struct crypto_shash *tx_tfm_mic;
 
 	unsigned int wpa_enabled:1;
 	unsigned int tkip_cm_active:1;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/intersil/p54/fwio.c linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/p54/fwio.c
--- linux-libre-4.9-gnu/drivers/net/wireless/intersil/p54/fwio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/intersil/p54/fwio.c	2017-09-27 08:40:05.000000000 -0400
@@ -488,7 +488,7 @@ int p54_scan(struct p54_common *priv, u1
 
 			entry += sizeof(__le16);
 			chan->pa_points_per_curve = 8;
-			memset(chan->curve_data, 0, sizeof(*chan->curve_data));
+			memset(chan->curve_data, 0, sizeof(chan->curve_data));
 			memcpy(chan->curve_data, entry,
 			       sizeof(struct p54_pa_curve_data_sample) *
 			       min((u8)8, curve_data->points_per_channel));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/mac80211_hwsim.c linux-libre-4.9.52-gnu/drivers/net/wireless/mac80211_hwsim.c
--- linux-libre-4.9-gnu/drivers/net/wireless/mac80211_hwsim.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/mac80211_hwsim.c	2017-09-27 08:40:05.000000000 -0400
@@ -2662,7 +2662,7 @@ static int mac80211_hwsim_new_radio(stru
 
 	tasklet_hrtimer_init(&data->beacon_timer,
 			     mac80211_hwsim_beacon,
-			     CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
+			     CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	spin_lock_bh(&hwsim_radio_lock);
 	list_add_tail(&data->list, &hwsim_radios);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/11n_aggr.c linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/11n_aggr.c
--- linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/11n_aggr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/11n_aggr.c	2017-09-27 08:40:05.000000000 -0400
@@ -101,13 +101,6 @@ mwifiex_11n_form_amsdu_txpd(struct mwifi
 {
 	struct txpd *local_tx_pd;
 	struct mwifiex_txinfo *tx_info = MWIFIEX_SKB_TXCB(skb);
-	unsigned int pad;
-	int headroom = (priv->adapter->iface_type ==
-			MWIFIEX_USB) ? 0 : INTF_HEADER_LEN;
-
-	pad = ((void *)skb->data - sizeof(*local_tx_pd) -
-		headroom - NULL) & (MWIFIEX_DMA_ALIGN_SZ - 1);
-	skb_push(skb, pad);
 
 	skb_push(skb, sizeof(*local_tx_pd));
 
@@ -121,12 +114,10 @@ mwifiex_11n_form_amsdu_txpd(struct mwifi
 	local_tx_pd->bss_num = priv->bss_num;
 	local_tx_pd->bss_type = priv->bss_type;
 	/* Always zero as the data is followed by struct txpd */
-	local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd) +
-						 pad);
+	local_tx_pd->tx_pkt_offset = cpu_to_le16(sizeof(struct txpd));
 	local_tx_pd->tx_pkt_type = cpu_to_le16(PKT_TYPE_AMSDU);
 	local_tx_pd->tx_pkt_length = cpu_to_le16(skb->len -
-						 sizeof(*local_tx_pd) -
-						 pad);
+						 sizeof(*local_tx_pd));
 
 	if (tx_info->flags & MWIFIEX_BUF_FLAG_TDLS_PKT)
 		local_tx_pd->flags |= MWIFIEX_TXPD_FLAGS_TDLS_PACKET;
@@ -190,7 +181,11 @@ mwifiex_11n_aggregate_pkt(struct mwifiex
 				       ra_list_flags);
 		return -1;
 	}
-	skb_reserve(skb_aggr, MWIFIEX_MIN_DATA_HEADER_LEN);
+
+	/* skb_aggr->data already 64 byte align, just reserve bus interface
+	 * header and txpd.
+	 */
+	skb_reserve(skb_aggr, headroom + sizeof(struct txpd));
 	tx_info_aggr =  MWIFIEX_SKB_TXCB(skb_aggr);
 
 	memset(tx_info_aggr, 0, sizeof(*tx_info_aggr));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c
--- linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/cfg80211.c	2017-09-27 08:40:05.000000000 -0400
@@ -2512,9 +2512,11 @@ mwifiex_cfg80211_scan(struct wiphy *wiph
 			priv->random_mac[i] |= get_random_int() &
 					       ~(request->mac_addr_mask[i]);
 		}
+		ether_addr_copy(user_scan_cfg->random_mac, priv->random_mac);
+	} else {
+		eth_zero_addr(priv->random_mac);
 	}
 
-	ether_addr_copy(user_scan_cfg->random_mac, priv->random_mac);
 	user_scan_cfg->num_ssids = request->n_ssids;
 	user_scan_cfg->ssid_list = request->ssids;
 
@@ -4186,7 +4188,7 @@ int mwifiex_init_channel_scan_gap(struct
 	if (adapter->config_bands & BAND_A)
 		n_channels_a = mwifiex_band_5ghz.n_channels;
 
-	adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
+	adapter->num_in_chan_stats = n_channels_bg + n_channels_a;
 	adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
 				      adapter->num_in_chan_stats);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/debugfs.c linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/debugfs.c
--- linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/debugfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/debugfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,7 +114,8 @@ mwifiex_info_read(struct file *file, cha
 	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
 		p += sprintf(p, "multicast_count=\"%d\"\n",
 			     netdev_mc_count(netdev));
-		p += sprintf(p, "essid=\"%s\"\n", info.ssid.ssid);
+		p += sprintf(p, "essid=\"%.*s\"\n", info.ssid.ssid_len,
+			     info.ssid.ssid);
 		p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
 		p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan);
 		p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/pcie.c linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/pcie.c
--- linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/pcie.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/pcie.c	2017-09-27 08:40:05.000000000 -0400
@@ -995,6 +995,7 @@ static int mwifiex_pcie_delete_cmdrsp_bu
 	if (card && card->cmd_buf) {
 		mwifiex_unmap_pci_memory(adapter, card->cmd_buf,
 					 PCI_DMA_TODEVICE);
+		dev_kfree_skb_any(card->cmd_buf);
 	}
 	return 0;
 }
@@ -1561,6 +1562,11 @@ mwifiex_pcie_send_cmd(struct mwifiex_ada
 		return -1;
 
 	card->cmd_buf = skb;
+	/*
+	 * Need to keep a reference, since core driver might free up this
+	 * buffer before we've unmapped it.
+	 */
+	skb_get(skb);
 
 	/* To send a command, the driver will:
 		1. Write the 64bit physical address of the data buffer to
@@ -1658,6 +1664,7 @@ static int mwifiex_pcie_process_cmd_comp
 	if (card->cmd_buf) {
 		mwifiex_unmap_pci_memory(adapter, card->cmd_buf,
 					 PCI_DMA_TODEVICE);
+		dev_kfree_skb_any(card->cmd_buf);
 		card->cmd_buf = NULL;
 	}
 
@@ -2700,6 +2707,21 @@ static void mwifiex_pcie_device_dump(str
 	schedule_work(&pcie_work);
 }
 
+static void mwifiex_pcie_free_buffers(struct mwifiex_adapter *adapter)
+{
+	struct pcie_service_card *card = adapter->card;
+	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+
+	if (reg->sleep_cookie)
+		mwifiex_pcie_delete_sleep_cookie_buf(adapter);
+
+	mwifiex_pcie_delete_cmdrsp_buf(adapter);
+	mwifiex_pcie_delete_evtbd_ring(adapter);
+	mwifiex_pcie_delete_rxbd_ring(adapter);
+	mwifiex_pcie_delete_txbd_ring(adapter);
+	card->cmdrsp_buf = NULL;
+}
+
 /*
  * This function initializes the PCI-E host memory space, WCB rings, etc.
  *
@@ -2812,13 +2834,6 @@ err_enable_dev:
 
 /*
  * This function cleans up the allocated card buffers.
- *
- * The following are freed by this function -
- *      - TXBD ring buffers
- *      - RXBD ring buffers
- *      - Event BD ring buffers
- *      - Command response ring buffer
- *      - Sleep cookie buffer
  */
 static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter)
 {
@@ -2834,6 +2849,8 @@ static void mwifiex_pcie_cleanup(struct
 				    "Failed to write driver not-ready signature\n");
 	}
 
+	mwifiex_pcie_free_buffers(adapter);
+
 	if (pdev) {
 		pci_iounmap(pdev, card->pci_mmap);
 		pci_iounmap(pdev, card->pci_mmap1);
@@ -3080,10 +3097,7 @@ err_cre_txbd:
 	pci_iounmap(pdev, card->pci_mmap1);
 }
 
-/* This function cleans up the PCI-E host memory space.
- * Some code is extracted from mwifiex_unregister_dev()
- *
- */
+/* This function cleans up the PCI-E host memory space. */
 static void mwifiex_pcie_down_dev(struct mwifiex_adapter *adapter)
 {
 	struct pcie_service_card *card = adapter->card;
@@ -3095,16 +3109,8 @@ static void mwifiex_pcie_down_dev(struct
 	adapter->seq_num = 0;
 	adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
 
-	if (card) {
-		if (reg->sleep_cookie)
-			mwifiex_pcie_delete_sleep_cookie_buf(adapter);
-
-		mwifiex_pcie_delete_cmdrsp_buf(adapter);
-		mwifiex_pcie_delete_evtbd_ring(adapter);
-		mwifiex_pcie_delete_rxbd_ring(adapter);
-		mwifiex_pcie_delete_txbd_ring(adapter);
-		card->cmdrsp_buf = NULL;
-	}
+	if (card)
+		mwifiex_pcie_free_buffers(adapter);
 
 	return;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/scan.c linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/scan.c
--- linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/scan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/scan.c	2017-09-27 08:40:05.000000000 -0400
@@ -2479,6 +2479,12 @@ mwifiex_update_chan_statistics(struct mw
 					      sizeof(struct mwifiex_chan_stats);
 
 	for (i = 0 ; i < num_chan; i++) {
+		if (adapter->survey_idx >= adapter->num_in_chan_stats) {
+			mwifiex_dbg(adapter, WARN,
+				    "FW reported too many channel results (max %d)\n",
+				    adapter->num_in_chan_stats);
+			return;
+		}
 		chan_stats.chan_num = fw_chan_stats->chan_num;
 		chan_stats.bandcfg = fw_chan_stats->bandcfg;
 		chan_stats.flags = fw_chan_stats->flags;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
--- linux-libre-4.9-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -1159,8 +1159,6 @@ int mwifiex_set_encode(struct mwifiex_pr
 			encrypt_key.is_rx_seq_valid = true;
 		}
 	} else {
-		if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
-			return 0;
 		encrypt_key.key_disable = true;
 		if (mac_addr)
 			memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c linux-libre-4.9.52-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -1422,21 +1422,6 @@ void rt2x00lib_remove_dev(struct rt2x00_
 	cancel_work_sync(&rt2x00dev->intf_work);
 	cancel_delayed_work_sync(&rt2x00dev->autowakeup_work);
 	cancel_work_sync(&rt2x00dev->sleep_work);
-#ifdef CONFIG_RT2X00_LIB_USB
-	if (rt2x00_is_usb(rt2x00dev)) {
-		usb_kill_anchored_urbs(rt2x00dev->anchor);
-		hrtimer_cancel(&rt2x00dev->txstatus_timer);
-		cancel_work_sync(&rt2x00dev->rxdone_work);
-		cancel_work_sync(&rt2x00dev->txdone_work);
-	}
-#endif
-	if (rt2x00dev->workqueue)
-		destroy_workqueue(rt2x00dev->workqueue);
-
-	/*
-	 * Free the tx status fifo.
-	 */
-	kfifo_free(&rt2x00dev->txstatus_fifo);
 
 	/*
 	 * Kill the tx status tasklet.
@@ -1452,6 +1437,14 @@ void rt2x00lib_remove_dev(struct rt2x00_
 	 */
 	rt2x00lib_uninitialize(rt2x00dev);
 
+	if (rt2x00dev->workqueue)
+		destroy_workqueue(rt2x00dev->workqueue);
+
+	/*
+	 * Free the tx status fifo.
+	 */
+	kfifo_free(&rt2x00dev->txstatus_fifo);
+
 	/*
 	 * Free extra components
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c linux-libre-4.9.52-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -319,10 +319,8 @@ static bool rt2x00usb_kick_tx_entry(stru
 			  entry->skb->data, length,
 			  rt2x00usb_interrupt_txdone, entry);
 
-	usb_anchor_urb(entry_priv->urb, rt2x00dev->anchor);
 	status = usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
 	if (status) {
-		usb_unanchor_urb(entry_priv->urb);
 		if (status == -ENODEV)
 			clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
 		set_bit(ENTRY_DATA_IO_FAILED, &entry->flags);
@@ -410,10 +408,8 @@ static bool rt2x00usb_kick_rx_entry(stru
 			  entry->skb->data, entry->skb->len,
 			  rt2x00usb_interrupt_rxdone, entry);
 
-	usb_anchor_urb(entry_priv->urb, rt2x00dev->anchor);
 	status = usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
 	if (status) {
-		usb_unanchor_urb(entry_priv->urb);
 		if (status == -ENODEV)
 			clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
 		set_bit(ENTRY_DATA_IO_FAILED, &entry->flags);
@@ -744,6 +740,11 @@ void rt2x00usb_uninitialize(struct rt2x0
 {
 	struct data_queue *queue;
 
+	usb_kill_anchored_urbs(rt2x00dev->anchor);
+	hrtimer_cancel(&rt2x00dev->txstatus_timer);
+	cancel_work_sync(&rt2x00dev->rxdone_work);
+	cancel_work_sync(&rt2x00dev->txdone_work);
+
 	queue_for_each(rt2x00dev, queue)
 		rt2x00usb_free_entries(queue);
 }
@@ -824,10 +825,6 @@ int rt2x00usb_probe(struct usb_interface
 	if (retval)
 		goto exit_free_device;
 
-	retval = rt2x00lib_probe_dev(rt2x00dev);
-	if (retval)
-		goto exit_free_reg;
-
 	rt2x00dev->anchor = devm_kmalloc(&usb_dev->dev,
 					sizeof(struct usb_anchor),
 					GFP_KERNEL);
@@ -835,10 +832,17 @@ int rt2x00usb_probe(struct usb_interface
 		retval = -ENOMEM;
 		goto exit_free_reg;
 	}
-
 	init_usb_anchor(rt2x00dev->anchor);
+
+	retval = rt2x00lib_probe_dev(rt2x00dev);
+	if (retval)
+		goto exit_free_anchor;
+
 	return 0;
 
+exit_free_anchor:
+	usb_kill_anchored_urbs(rt2x00dev->anchor);
+
 exit_free_reg:
 	rt2x00usb_free_reg(rt2x00dev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c	2016-12-11 17:55:15.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c	2017-09-27 15:05:45.000000000 -0400
@@ -4364,6 +4364,13 @@ void rtl8xxxu_gen1_report_connect(struct
 void rtl8xxxu_gen2_report_connect(struct rtl8xxxu_priv *priv,
 				  u8 macid, bool connect)
 {
+#ifdef RTL8XXXU_GEN2_REPORT_CONNECT
+	/*
+	 * Barry Day reports this causes issues with 8192eu and 8723bu
+	 * devices reconnecting. The reason for this is unclear, but
+	 * until it is better understood, leave the code in place but
+	 * disabled, so it is not lost.
+	 */
 	struct h2c_cmd h2c;
 
 	memset(&h2c, 0, sizeof(struct h2c_cmd));
@@ -4375,6 +4382,7 @@ void rtl8xxxu_gen2_report_connect(struct
 		h2c.media_status_rpt.parm &= ~BIT(0);
 
 	rtl8xxxu_gen2_h2c_cmd(priv, &h2c, sizeof(h2c.media_status_rpt));
+#endif
 }
 
 void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/base.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/base.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -1303,12 +1303,13 @@ EXPORT_SYMBOL_GPL(rtl_action_proc);
 
 static void setup_arp_tx(struct rtl_priv *rtlpriv, struct rtl_ps_ctl *ppsc)
 {
+	struct ieee80211_hw *hw = rtlpriv->hw;
+
 	rtlpriv->ra.is_special_data = true;
 	if (rtlpriv->cfg->ops->get_btc_status())
 		rtlpriv->btcoexist.btc_ops->btc_special_packet_notify(
 					rtlpriv, 1);
-	rtlpriv->enter_ps = false;
-	schedule_work(&rtlpriv->works.lps_change_work);
+	rtl_lps_leave(hw);
 	ppsc->last_delaylps_stamp_jiffies = jiffies;
 }
 
@@ -1381,8 +1382,7 @@ u8 rtl_is_special_data(struct ieee80211_
 
 		if (is_tx) {
 			rtlpriv->ra.is_special_data = true;
-			rtlpriv->enter_ps = false;
-			schedule_work(&rtlpriv->works.lps_change_work);
+			rtl_lps_leave(hw);
 			ppsc->last_delaylps_stamp_jiffies = jiffies;
 		}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/core.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/core.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/core.c	2016-12-11 17:55:26.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/core.c	2017-09-27 15:06:05.000000000 -0400
@@ -1150,10 +1150,8 @@ static void rtl_op_bss_info_changed(stru
 		} else {
 			mstatus = RT_MEDIA_DISCONNECT;
 
-			if (mac->link_state == MAC80211_LINKED) {
-				rtlpriv->enter_ps = false;
-				schedule_work(&rtlpriv->works.lps_change_work);
-			}
+			if (mac->link_state == MAC80211_LINKED)
+				rtl_lps_leave(hw);
 			if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
 				rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
 			mac->link_state = MAC80211_NOLINK;
@@ -1431,8 +1429,7 @@ static void rtl_op_sw_scan_start(struct
 	}
 
 	if (mac->link_state == MAC80211_LINKED) {
-		rtlpriv->enter_ps = false;
-		schedule_work(&rtlpriv->works.lps_change_work);
+		rtl_lps_leave(hw);
 		mac->link_state = MAC80211_LINKED_SCANNING;
 	} else {
 		rtl_ips_nic_on(hw);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -663,11 +663,9 @@ tx_status_ok:
 	}
 
 	if (((rtlpriv->link_info.num_rx_inperiod +
-		rtlpriv->link_info.num_tx_inperiod) > 8) ||
-		(rtlpriv->link_info.num_rx_inperiod > 2)) {
-		rtlpriv->enter_ps = false;
-		schedule_work(&rtlpriv->works.lps_change_work);
-	}
+	      rtlpriv->link_info.num_tx_inperiod) > 8) ||
+	      (rtlpriv->link_info.num_rx_inperiod > 2))
+		rtl_lps_leave(hw);
 }
 
 static int _rtl_pci_init_one_rxdesc(struct ieee80211_hw *hw,
@@ -918,10 +916,8 @@ new_trx_end:
 		}
 		if (((rtlpriv->link_info.num_rx_inperiod +
 		      rtlpriv->link_info.num_tx_inperiod) > 8) ||
-		      (rtlpriv->link_info.num_rx_inperiod > 2)) {
-			rtlpriv->enter_ps = false;
-			schedule_work(&rtlpriv->works.lps_change_work);
-		}
+		      (rtlpriv->link_info.num_rx_inperiod > 2))
+			rtl_lps_leave(hw);
 		skb = new_skb;
 no_new:
 		if (rtlpriv->use_new_trx_flow) {
@@ -2273,7 +2269,7 @@ int rtl_pci_probe(struct pci_dev *pdev,
 	/* find adapter */
 	if (!_rtl_pci_find_adapter(pdev, hw)) {
 		err = -ENODEV;
-		goto fail3;
+		goto fail2;
 	}
 
 	/* Init IO handler */
@@ -2343,10 +2339,10 @@ fail3:
 	pci_set_drvdata(pdev, NULL);
 	rtl_deinit_core(hw);
 
+fail2:
 	if (rtlpriv->io.pci_mem_start != 0)
 		pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
 
-fail2:
 	pci_release_regions(pdev);
 	complete(&rtlpriv->firmware_loading_complete);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/pci.h	2017-09-27 08:40:05.000000000 -0400
@@ -275,10 +275,10 @@ struct mp_adapter {
 };
 
 struct rtl_pci_priv {
+	struct bt_coexist_info bt_coexist;
+	struct rtl_led_ctl ledctl;
 	struct rtl_pci dev;
 	struct mp_adapter ndis_adapter;
-	struct rtl_led_ctl ledctl;
-	struct bt_coexist_info bt_coexist;
 };
 
 #define rtl_pcipriv(hw)		(((struct rtl_pci_priv *)(rtl_priv(hw))->priv))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/ps.c	2017-09-27 08:40:05.000000000 -0400
@@ -407,8 +407,8 @@ void rtl_lps_set_psmode(struct ieee80211
 	}
 }
 
-/*Enter the leisure power save mode.*/
-void rtl_lps_enter(struct ieee80211_hw *hw)
+/* Interrupt safe routine to enter the leisure power save mode.*/
+static void rtl_lps_enter_core(struct ieee80211_hw *hw)
 {
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
@@ -444,10 +444,9 @@ void rtl_lps_enter(struct ieee80211_hw *
 
 	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
 }
-EXPORT_SYMBOL(rtl_lps_enter);
 
-/*Leave the leisure power save mode.*/
-void rtl_lps_leave(struct ieee80211_hw *hw)
+/* Interrupt safe routine to leave the leisure power save mode.*/
+static void rtl_lps_leave_core(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
@@ -477,7 +476,6 @@ void rtl_lps_leave(struct ieee80211_hw *
 	}
 	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
 }
-EXPORT_SYMBOL(rtl_lps_leave);
 
 /* For sw LPS*/
 void rtl_swlps_beacon(struct ieee80211_hw *hw, void *data, unsigned int len)
@@ -670,12 +668,34 @@ void rtl_lps_change_work_callback(struct
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 
 	if (rtlpriv->enter_ps)
-		rtl_lps_enter(hw);
+		rtl_lps_enter_core(hw);
 	else
-		rtl_lps_leave(hw);
+		rtl_lps_leave_core(hw);
 }
 EXPORT_SYMBOL_GPL(rtl_lps_change_work_callback);
 
+void rtl_lps_enter(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (!in_interrupt())
+		return rtl_lps_enter_core(hw);
+	rtlpriv->enter_ps = true;
+	schedule_work(&rtlpriv->works.lps_change_work);
+}
+EXPORT_SYMBOL_GPL(rtl_lps_enter);
+
+void rtl_lps_leave(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+	if (!in_interrupt())
+		return rtl_lps_leave_core(hw);
+	rtlpriv->enter_ps = false;
+	schedule_work(&rtlpriv->works.lps_change_work);
+}
+EXPORT_SYMBOL_GPL(rtl_lps_leave);
+
 void rtl_swlps_wq_callback(void *data)
 {
 	struct rtl_works *rtlworks = container_of_dwork_rtl(data,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c	2016-12-11 17:55:36.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c	2017-09-27 15:06:26.000000000 -0400
@@ -96,7 +96,7 @@ int rtl92c_init_sw_vars(struct ieee80211
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	char *fw_name = "/*(DEBLOBBED)*/";
+	char *fw_name;
 
 	rtl8192ce_bt_reg_init(hw);
 
@@ -168,7 +168,12 @@ int rtl92c_init_sw_vars(struct ieee80211
 	}
 
 	/* request fw */
-	if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version))
+	if (IS_VENDOR_UMC_A_CUT(rtlhal->version) &&
+	    !IS_92C_SERIAL(rtlhal->version))
+		fw_name = "/*(DEBLOBBED)*/";
+	else if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version))
+		fw_name = "/*(DEBLOBBED)*/";
+	else
 		fw_name = "/*(DEBLOBBED)*/";
 
 	rtlpriv->max_fw_size = 0x4000;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/hw.c	2017-09-27 08:40:05.000000000 -0400
@@ -1006,7 +1006,7 @@ static void _rtl92ee_hw_configure(struct
 	rtl_write_word(rtlpriv, REG_SIFS_TRX, 0x100a);
 
 	/* Note Data sheet don't define */
-	rtl_write_word(rtlpriv, 0x4C7, 0x80);
+	rtl_write_byte(rtlpriv, 0x4C7, 0x80);
 
 	rtl_write_byte(rtlpriv, REG_RX_PKT_LIMIT, 0x20);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c	2017-09-27 08:40:05.000000000 -0400
@@ -1128,7 +1128,7 @@ static u8 _rtl8821ae_dbi_read(struct rtl
 	}
 	if (0 == tmp) {
 		read_addr = REG_DBI_RDATA + addr % 4;
-		ret = rtl_read_word(rtlpriv, read_addr);
+		ret = rtl_read_byte(rtlpriv, read_addr);
 	}
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c	2017-09-27 08:40:05.000000000 -0400
@@ -359,6 +359,107 @@ bool rtl8821ae_phy_rf_config(struct ieee
 	return rtl8821ae_phy_rf6052_config(hw);
 }
 
+static void _rtl8812ae_phy_set_rfe_reg_24g(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	u8 tmp;
+
+	switch (rtlhal->rfe_type) {
+	case 3:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x54337770);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x54337770);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, 0x900, 0x00000303, 0x1);
+		break;
+	case 4:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x001);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x001);
+		break;
+	case 5:
+		rtl_write_byte(rtlpriv, RA_RFE_PINMUX + 2, 0x77);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		tmp = rtl_read_byte(rtlpriv, RA_RFE_INV + 3);
+		rtl_write_byte(rtlpriv, RA_RFE_INV + 3, tmp & ~0x1);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		break;
+	case 1:
+		if (rtlpriv->btcoexist.bt_coexistence) {
+			rtl_set_bbreg(hw, RA_RFE_PINMUX, 0xffffff, 0x777777);
+			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
+				      0x77777777);
+			rtl_set_bbreg(hw, RA_RFE_INV, 0x33f00000, 0x000);
+			rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+			break;
+		}
+	case 0:
+	case 2:
+	default:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77777777);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x000);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		break;
+	}
+}
+
+static void _rtl8812ae_phy_set_rfe_reg_5g(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	u8 tmp;
+
+	switch (rtlhal->rfe_type) {
+	case 0:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77337717);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77337717);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		break;
+	case 1:
+		if (rtlpriv->btcoexist.bt_coexistence) {
+			rtl_set_bbreg(hw, RA_RFE_PINMUX, 0xffffff, 0x337717);
+			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
+				      0x77337717);
+			rtl_set_bbreg(hw, RA_RFE_INV, 0x33f00000, 0x000);
+			rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		} else {
+			rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD,
+				      0x77337717);
+			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
+				      0x77337717);
+			rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x000);
+			rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x000);
+		}
+		break;
+	case 3:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x54337717);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x54337717);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, 0x900, 0x00000303, 0x1);
+		break;
+	case 5:
+		rtl_write_byte(rtlpriv, RA_RFE_PINMUX + 2, 0x33);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77337777);
+		tmp = rtl_read_byte(rtlpriv, RA_RFE_INV + 3);
+		rtl_write_byte(rtlpriv, RA_RFE_INV + 3, tmp | 0x1);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		break;
+	case 2:
+	case 4:
+	default:
+		rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD, 0x77337777);
+		rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD, 0x77337777);
+		rtl_set_bbreg(hw, RA_RFE_INV, BMASKRFEINV, 0x010);
+		rtl_set_bbreg(hw, RB_RFE_INV, BMASKRFEINV, 0x010);
+		break;
+	}
+}
+
 u32 phy_get_tx_swing_8812A(struct ieee80211_hw *hw, u8	band,
 			   u8 rf_path)
 {
@@ -553,14 +654,9 @@ void rtl8821ae_phy_switch_wirelessband(s
 			/* 0x82C[1:0] = 2b'00 */
 			rtl_set_bbreg(hw, 0x82c, 0x3, 0);
 		}
-		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
-			rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD,
-				      0x77777777);
-			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
-				      0x77777777);
-			rtl_set_bbreg(hw, RA_RFE_INV, 0x3ff00000, 0x000);
-			rtl_set_bbreg(hw, RB_RFE_INV, 0x3ff00000, 0x000);
-		}
+
+		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
+			_rtl8812ae_phy_set_rfe_reg_24g(hw);
 
 		rtl_set_bbreg(hw, RTXPATH, 0xf0, 0x1);
 		rtl_set_bbreg(hw, RCCK_RX, 0x0f000000, 0x1);
@@ -615,14 +711,8 @@ void rtl8821ae_phy_switch_wirelessband(s
 			/* 0x82C[1:0] = 2'b00 */
 			rtl_set_bbreg(hw, 0x82c, 0x3, 1);
 
-		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
-			rtl_set_bbreg(hw, RA_RFE_PINMUX, BMASKDWORD,
-				      0x77337777);
-			rtl_set_bbreg(hw, RB_RFE_PINMUX, BMASKDWORD,
-				      0x77337777);
-			rtl_set_bbreg(hw, RA_RFE_INV, 0x3ff00000, 0x010);
-			rtl_set_bbreg(hw, RB_RFE_INV, 0x3ff00000, 0x010);
-		}
+		if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE)
+			_rtl8812ae_phy_set_rfe_reg_5g(hw);
 
 		rtl_set_bbreg(hw, RTXPATH, 0xf0, 0);
 		rtl_set_bbreg(hw, RCCK_RX, 0x0f000000, 0xf);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/reg.h	2017-09-27 08:40:05.000000000 -0400
@@ -2424,6 +2424,7 @@
 #define	BMASKH4BITS			0xf0000000
 #define BMASKOFDM_D			0xffc00000
 #define	BMASKCCK			0x3f3f3f3f
+#define BMASKRFEINV			0x3ff00000
 
 #define BRFREGOFFSETMASK		0xfffff
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -831,12 +831,30 @@ static void rtl_usb_stop(struct ieee8021
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
+	struct urb *urb;
 
 	/* should after adapter start and interrupt enable. */
 	set_hal_stop(rtlhal);
 	cancel_work_sync(&rtlpriv->works.fill_h2c_cmd);
 	/* Enable software */
 	SET_USB_STOP(rtlusb);
+
+	/* free pre-allocated URBs from rtl_usb_start() */
+	usb_kill_anchored_urbs(&rtlusb->rx_submitted);
+
+	tasklet_kill(&rtlusb->rx_work_tasklet);
+	cancel_work_sync(&rtlpriv->works.lps_change_work);
+
+	flush_workqueue(rtlpriv->works.rtl_wq);
+
+	skb_queue_purge(&rtlusb->rx_queue);
+
+	while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) {
+		usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+				urb->transfer_buffer, urb->transfer_dma);
+		usb_free_urb(urb);
+	}
+
 	rtlpriv->cfg->ops->hw_disable(hw);
 }
 
@@ -1067,6 +1085,7 @@ int rtl_usb_probe(struct usb_interface *
 		return -ENOMEM;
 	}
 	rtlpriv = hw->priv;
+	rtlpriv->hw = hw;
 	rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32),
 				    GFP_KERNEL);
 	if (!rtlpriv->usb_data)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h
--- linux-libre-4.9-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/realtek/rtlwifi/usb.h	2017-09-27 08:40:05.000000000 -0400
@@ -150,8 +150,9 @@ struct rtl_usb {
 };
 
 struct rtl_usb_priv {
-	struct rtl_usb dev;
+	struct bt_coexist_info bt_coexist;
 	struct rtl_led_ctl ledctl;
+	struct rtl_usb dev;
 };
 
 #define rtl_usbpriv(hw)	 (((struct rtl_usb_priv *)(rtl_priv(hw))->priv))
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wl1251/main.c linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl1251/main.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wl1251/main.c	2016-12-11 17:56:10.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl1251/main.c	2017-09-27 15:07:41.000000000 -0400
@@ -1571,6 +1571,7 @@ struct ieee80211_hw *wl1251_alloc_hw(voi
 
 	wl->state = WL1251_STATE_OFF;
 	mutex_init(&wl->mutex);
+	spin_lock_init(&wl->wl_lock);
 
 	wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE;
 	wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wl18xx/event.c linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl18xx/event.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wl18xx/event.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl18xx/event.c	2017-09-27 08:40:05.000000000 -0400
@@ -218,5 +218,33 @@ int wl18xx_process_mailbox_events(struct
 	if (vector & FW_LOGGER_INDICATION)
 		wlcore_event_fw_logger(wl);
 
+	if (vector & RX_BA_WIN_SIZE_CHANGE_EVENT_ID) {
+		struct wl12xx_vif *wlvif;
+		struct ieee80211_vif *vif;
+		struct ieee80211_sta *sta;
+		u8 link_id = mbox->rx_ba_link_id;
+		u8 win_size = mbox->rx_ba_win_size;
+		const u8 *addr;
+
+		wlvif = wl->links[link_id].wlvif;
+		vif = wl12xx_wlvif_to_vif(wlvif);
+
+		/* Update RX aggregation window size and call
+		 * MAC routine to stop active RX aggregations for this link
+		 */
+		if (wlvif->bss_type != BSS_TYPE_AP_BSS)
+			addr = vif->bss_conf.bssid;
+		else
+			addr = wl->links[link_id].addr;
+
+		sta = ieee80211_find_sta(vif, addr);
+		if (sta) {
+			sta->max_rx_aggregation_subframes = win_size;
+			ieee80211_stop_rx_ba_session(vif,
+						wl->links[link_id].ba_bitmap,
+						addr);
+		}
+	}
+
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wl18xx/event.h linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl18xx/event.h
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wl18xx/event.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl18xx/event.h	2017-09-27 08:40:05.000000000 -0400
@@ -38,6 +38,7 @@ enum {
 	REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID      = BIT(18),
 	DFS_CHANNELS_CONFIG_COMPLETE_EVENT       = BIT(19),
 	PERIODIC_SCAN_REPORT_EVENT_ID            = BIT(20),
+	RX_BA_WIN_SIZE_CHANGE_EVENT_ID           = BIT(21),
 	SMART_CONFIG_SYNC_EVENT_ID               = BIT(22),
 	SMART_CONFIG_DECODE_EVENT_ID             = BIT(23),
 	TIME_SYNC_EVENT_ID                       = BIT(24),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wl18xx/main.c linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl18xx/main.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wl18xx/main.c	2016-12-11 17:56:19.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wl18xx/main.c	2017-09-27 15:07:59.000000000 -0400
@@ -1041,7 +1041,8 @@ static int wl18xx_boot(struct wl1271 *wl
 		SMART_CONFIG_SYNC_EVENT_ID |
 		SMART_CONFIG_DECODE_EVENT_ID |
 		TIME_SYNC_EVENT_ID |
-		FW_LOGGER_INDICATION;
+		FW_LOGGER_INDICATION |
+		RX_BA_WIN_SIZE_CHANGE_EVENT_ID;
 
 	wl->ap_event_mask = MAX_TX_FAILURE_EVENT_ID;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/acx.c linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/acx.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/acx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/acx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1419,7 +1419,8 @@ out:
 
 /* setup BA session receiver setting in the FW. */
 int wl12xx_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index,
-				       u16 ssn, bool enable, u8 peer_hlid)
+				       u16 ssn, bool enable, u8 peer_hlid,
+				       u8 win_size)
 {
 	struct wl1271_acx_ba_receiver_setup *acx;
 	int ret;
@@ -1435,7 +1436,7 @@ int wl12xx_acx_set_ba_receiver_session(s
 	acx->hlid = peer_hlid;
 	acx->tid = tid_index;
 	acx->enable = enable;
-	acx->win_size = wl->conf.ht.rx_ba_win_size;
+	acx->win_size =	win_size;
 	acx->ssn = ssn;
 
 	ret = wlcore_cmd_configure_failsafe(wl, ACX_BA_SESSION_RX_SETUP, acx,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/acx.h linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/acx.h
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/acx.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/acx.h	2017-09-27 08:40:05.000000000 -0400
@@ -1113,7 +1113,8 @@ int wl1271_acx_set_ht_information(struct
 int wl12xx_acx_set_ba_initiator_policy(struct wl1271 *wl,
 				       struct wl12xx_vif *wlvif);
 int wl12xx_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index,
-				       u16 ssn, bool enable, u8 peer_hlid);
+				       u16 ssn, bool enable, u8 peer_hlid,
+				       u8 win_size);
 int wl12xx_acx_tsf_info(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 			u64 *mactime);
 int wl1271_acx_ps_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/main.c linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/main.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/main.c	2016-12-11 17:56:19.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/main.c	2017-09-27 15:07:59.000000000 -0400
@@ -5285,7 +5285,9 @@ static int wl1271_op_ampdu_action(struct
 		}
 
 		ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
-							 hlid);
+				hlid,
+				params->buf_size);
+
 		if (!ret) {
 			*ba_bitmap |= BIT(tid);
 			wl->ba_rx_session_count++;
@@ -5306,7 +5308,7 @@ static int wl1271_op_ampdu_action(struct
 		}
 
 		ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
-							 hlid);
+							 hlid, 0);
 		if (!ret) {
 			*ba_bitmap &= ~BIT(tid);
 			wl->ba_rx_session_count--;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/spi.c linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/spi.c
--- linux-libre-4.9-gnu/drivers/net/wireless/ti/wlcore/spi.c	2016-12-11 17:56:24.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/wireless/ti/wlcore/spi.c	2017-09-27 15:08:09.000000000 -0400
@@ -70,10 +70,10 @@
 #define WSPI_MAX_CHUNK_SIZE    4092
 
 /*
- * wl18xx driver aggregation buffer size is (13 * PAGE_SIZE) compared to
- * (4 * PAGE_SIZE) for wl12xx, so use the larger buffer needed for wl18xx
+ * wl18xx driver aggregation buffer size is (13 * 4K) compared to
+ * (4 * 4K) for wl12xx, so use the larger buffer needed for wl18xx
  */
-#define SPI_AGGR_BUFFER_SIZE (13 * PAGE_SIZE)
+#define SPI_AGGR_BUFFER_SIZE (13 * SZ_4K)
 
 /* Maximum number of SPI write chunks */
 #define WSPI_MAX_NUM_OF_CHUNKS \
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/xen-netback/common.h linux-libre-4.9.52-gnu/drivers/net/xen-netback/common.h
--- linux-libre-4.9-gnu/drivers/net/xen-netback/common.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/xen-netback/common.h	2017-09-27 08:40:05.000000000 -0400
@@ -199,6 +199,7 @@ struct xenvif_queue { /* Per-queue data
 	unsigned long   remaining_credit;
 	struct timer_list credit_timeout;
 	u64 credit_window_start;
+	bool rate_limited;
 
 	/* Statistics */
 	struct xenvif_stats stats;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/xen-netback/interface.c linux-libre-4.9.52-gnu/drivers/net/xen-netback/interface.c
--- linux-libre-4.9-gnu/drivers/net/xen-netback/interface.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/xen-netback/interface.c	2017-09-27 08:40:05.000000000 -0400
@@ -105,7 +105,11 @@ static int xenvif_poll(struct napi_struc
 
 	if (work_done < budget) {
 		napi_complete(napi);
-		xenvif_napi_schedule_or_enable_events(queue);
+		/* If the queue is rate-limited, it shall be
+		 * rescheduled in the timer callback.
+		 */
+		if (likely(!queue->rate_limited))
+			xenvif_napi_schedule_or_enable_events(queue);
 	}
 
 	return work_done;
@@ -221,18 +225,18 @@ static struct net_device_stats *xenvif_g
 {
 	struct xenvif *vif = netdev_priv(dev);
 	struct xenvif_queue *queue = NULL;
-	unsigned int num_queues = vif->num_queues;
 	unsigned long rx_bytes = 0;
 	unsigned long rx_packets = 0;
 	unsigned long tx_bytes = 0;
 	unsigned long tx_packets = 0;
 	unsigned int index;
 
+	spin_lock(&vif->lock);
 	if (vif->queues == NULL)
 		goto out;
 
 	/* Aggregate tx and rx stats from each queue */
-	for (index = 0; index < num_queues; ++index) {
+	for (index = 0; index < vif->num_queues; ++index) {
 		queue = &vif->queues[index];
 		rx_bytes += queue->stats.rx_bytes;
 		rx_packets += queue->stats.rx_packets;
@@ -241,6 +245,8 @@ static struct net_device_stats *xenvif_g
 	}
 
 out:
+	spin_unlock(&vif->lock);
+
 	vif->dev->stats.rx_bytes = rx_bytes;
 	vif->dev->stats.rx_packets = rx_packets;
 	vif->dev->stats.tx_bytes = tx_bytes;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/xen-netback/netback.c linux-libre-4.9.52-gnu/drivers/net/xen-netback/netback.c
--- linux-libre-4.9-gnu/drivers/net/xen-netback/netback.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/xen-netback/netback.c	2017-09-27 08:40:05.000000000 -0400
@@ -179,6 +179,7 @@ static void tx_add_credit(struct xenvif_
 		max_credit = ULONG_MAX; /* wrapped: clamp to ULONG_MAX */
 
 	queue->remaining_credit = min(max_credit, max_burst);
+	queue->rate_limited = false;
 }
 
 void xenvif_tx_credit_callback(unsigned long data)
@@ -685,8 +686,10 @@ static bool tx_credit_exceeded(struct xe
 		msecs_to_jiffies(queue->credit_usec / 1000);
 
 	/* Timer could already be pending in rare cases. */
-	if (timer_pending(&queue->credit_timeout))
+	if (timer_pending(&queue->credit_timeout)) {
+		queue->rate_limited = true;
 		return true;
+	}
 
 	/* Passed the point where we can replenish credit? */
 	if (time_after_eq64(now, next_credit)) {
@@ -701,6 +704,7 @@ static bool tx_credit_exceeded(struct xe
 		mod_timer(&queue->credit_timeout,
 			  next_credit);
 		queue->credit_window_start = next_credit;
+		queue->rate_limited = true;
 
 		return true;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/xen-netback/xenbus.c linux-libre-4.9.52-gnu/drivers/net/xen-netback/xenbus.c
--- linux-libre-4.9-gnu/drivers/net/xen-netback/xenbus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/xen-netback/xenbus.c	2017-09-27 08:40:05.000000000 -0400
@@ -493,11 +493,22 @@ static int backend_create_xenvif(struct
 static void backend_disconnect(struct backend_info *be)
 {
 	if (be->vif) {
+		unsigned int queue_index;
+
 		xen_unregister_watchers(be->vif);
 #ifdef CONFIG_DEBUG_FS
 		xenvif_debugfs_delif(be->vif);
 #endif /* CONFIG_DEBUG_FS */
 		xenvif_disconnect_data(be->vif);
+		for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)
+			xenvif_deinit_queue(&be->vif->queues[queue_index]);
+
+		spin_lock(&be->vif->lock);
+		vfree(be->vif->queues);
+		be->vif->num_queues = 0;
+		be->vif->queues = NULL;
+		spin_unlock(&be->vif->lock);
+
 		xenvif_disconnect_ctrl(be->vif);
 	}
 }
@@ -1040,6 +1051,8 @@ static void connect(struct backend_info
 err:
 	if (be->vif->num_queues > 0)
 		xenvif_disconnect_data(be->vif); /* Clean up existing queues */
+	for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)
+		xenvif_deinit_queue(&be->vif->queues[queue_index]);
 	vfree(be->vif->queues);
 	be->vif->queues = NULL;
 	be->vif->num_queues = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/net/xen-netfront.c linux-libre-4.9.52-gnu/drivers/net/xen-netfront.c
--- linux-libre-4.9-gnu/drivers/net/xen-netfront.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/net/xen-netfront.c	2017-09-27 08:40:05.000000000 -0400
@@ -281,6 +281,7 @@ static void xennet_alloc_rx_buffers(stru
 {
 	RING_IDX req_prod = queue->rx.req_prod_pvt;
 	int notify;
+	int err = 0;
 
 	if (unlikely(!netif_carrier_ok(queue->info->netdev)))
 		return;
@@ -295,8 +296,10 @@ static void xennet_alloc_rx_buffers(stru
 		struct xen_netif_rx_request *req;
 
 		skb = xennet_alloc_one_rx_buffer(queue);
-		if (!skb)
+		if (!skb) {
+			err = -ENOMEM;
 			break;
+		}
 
 		id = xennet_rxidx(req_prod);
 
@@ -320,8 +323,13 @@ static void xennet_alloc_rx_buffers(stru
 
 	queue->rx.req_prod_pvt = req_prod;
 
-	/* Not enough requests? Try again later. */
-	if (req_prod - queue->rx.rsp_cons < NET_RX_SLOTS_MIN) {
+	/* Try again later if there are not enough requests or skb allocation
+	 * failed.
+	 * Enough requests is quantified as the sum of newly created slots and
+	 * the unconsumed slots at the backend.
+	 */
+	if (req_prod - queue->rx.rsp_cons < NET_RX_SLOTS_MIN ||
+	    unlikely(err)) {
 		mod_timer(&queue->rx_refill_timer, jiffies + (HZ/10));
 		return;
 	}
@@ -1397,6 +1405,8 @@ static void xennet_disconnect_backend(st
 	for (i = 0; i < num_queues && info->queues; ++i) {
 		struct netfront_queue *queue = &info->queues[i];
 
+		del_timer_sync(&queue->rx_refill_timer);
+
 		if (queue->tx_irq && (queue->tx_irq == queue->rx_irq))
 			unbind_from_irqhandler(queue->tx_irq, queue);
 		if (queue->tx_irq && (queue->tx_irq != queue->rx_irq)) {
@@ -1751,7 +1761,6 @@ static void xennet_destroy_queues(struct
 
 		if (netif_running(info->netdev))
 			napi_disable(&queue->napi);
-		del_timer_sync(&queue->rx_refill_timer);
 		netif_napi_del(&queue->napi);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nfc/fdp/i2c.c linux-libre-4.9.52-gnu/drivers/nfc/fdp/i2c.c
--- linux-libre-4.9-gnu/drivers/nfc/fdp/i2c.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nfc/fdp/i2c.c	2017-09-27 08:40:05.000000000 -0400
@@ -210,14 +210,14 @@ static irqreturn_t fdp_nci_i2c_irq_threa
 	struct sk_buff *skb;
 	int r;
 
-	client = phy->i2c_dev;
-	dev_dbg(&client->dev, "%s\n", __func__);
-
 	if (!phy || irq != phy->i2c_dev->irq) {
 		WARN_ON_ONCE(1);
 		return IRQ_NONE;
 	}
 
+	client = phy->i2c_dev;
+	dev_dbg(&client->dev, "%s\n", __func__);
+
 	r = fdp_nci_i2c_read(phy, &skb);
 
 	if (r == -EREMOTEIO)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nfc/nfcmrvl/fw_dnld.c linux-libre-4.9.52-gnu/drivers/nfc/nfcmrvl/fw_dnld.c
--- linux-libre-4.9-gnu/drivers/nfc/nfcmrvl/fw_dnld.c	2016-12-11 17:51:09.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nfc/nfcmrvl/fw_dnld.c	2017-09-27 14:57:32.000000000 -0400
@@ -459,7 +459,7 @@ int	nfcmrvl_fw_dnld_init(struct nfcmrvl_
 
 	INIT_WORK(&priv->fw_dnld.rx_work, fw_dnld_rx_work);
 	snprintf(name, sizeof(name), "%s_nfcmrvl_fw_dnld_rx_wq",
-		 dev_name(priv->dev));
+		 dev_name(&priv->ndev->nfc_dev->dev));
 	priv->fw_dnld.rx_wq = create_singlethread_workqueue(name);
 	if (!priv->fw_dnld.rx_wq)
 		return -ENOMEM;
@@ -496,6 +496,7 @@ int nfcmrvl_fw_dnld_start(struct nci_dev
 {
 	struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
 	struct nfcmrvl_fw_dnld *fw_dnld = &priv->fw_dnld;
+	int res;
 
 	if (!priv->support_fw_dnld)
 		return -ENOTSUPP;
@@ -511,7 +512,9 @@ int nfcmrvl_fw_dnld_start(struct nci_dev
 	 */
 
 	/* Retrieve FW binary */
-	if (reject_firmware(&fw_dnld->fw, firmware_name, priv->dev) < 0) {
+	res = reject_firmware(&fw_dnld->fw, firmware_name,
+			       &ndev->nfc_dev->dev);
+	if (res < 0) {
 		nfc_err(priv->dev, "failed to retrieve FW %s", firmware_name);
 		return -ENOENT;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nfc/nfcmrvl/main.c linux-libre-4.9.52-gnu/drivers/nfc/nfcmrvl/main.c
--- linux-libre-4.9-gnu/drivers/nfc/nfcmrvl/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nfc/nfcmrvl/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -124,12 +124,13 @@ struct nfcmrvl_private *nfcmrvl_nci_regi
 	memcpy(&priv->config, pdata, sizeof(*pdata));
 
 	if (priv->config.reset_n_io) {
-		rc = devm_gpio_request_one(dev,
-					   priv->config.reset_n_io,
-					   GPIOF_OUT_INIT_LOW,
-					   "nfcmrvl_reset_n");
-		if (rc < 0)
+		rc = gpio_request_one(priv->config.reset_n_io,
+				      GPIOF_OUT_INIT_LOW,
+				      "nfcmrvl_reset_n");
+		if (rc < 0) {
+			priv->config.reset_n_io = 0;
 			nfc_err(dev, "failed to request reset_n io\n");
+		}
 	}
 
 	if (phy == NFCMRVL_PHY_SPI) {
@@ -154,7 +155,13 @@ struct nfcmrvl_private *nfcmrvl_nci_regi
 	if (!priv->ndev) {
 		nfc_err(dev, "nci_allocate_device failed\n");
 		rc = -ENOMEM;
-		goto error;
+		goto error_free_gpio;
+	}
+
+	rc = nfcmrvl_fw_dnld_init(priv);
+	if (rc) {
+		nfc_err(dev, "failed to initialize FW download %d\n", rc);
+		goto error_free_dev;
 	}
 
 	nci_set_drvdata(priv->ndev, priv);
@@ -162,24 +169,22 @@ struct nfcmrvl_private *nfcmrvl_nci_regi
 	rc = nci_register_device(priv->ndev);
 	if (rc) {
 		nfc_err(dev, "nci_register_device failed %d\n", rc);
-		goto error_free_dev;
+		goto error_fw_dnld_deinit;
 	}
 
 	/* Ensure that controller is powered off */
 	nfcmrvl_chip_halt(priv);
 
-	rc = nfcmrvl_fw_dnld_init(priv);
-	if (rc) {
-		nfc_err(dev, "failed to initialize FW download %d\n", rc);
-		goto error_free_dev;
-	}
-
 	nfc_info(dev, "registered with nci successfully\n");
 	return priv;
 
+error_fw_dnld_deinit:
+	nfcmrvl_fw_dnld_deinit(priv);
 error_free_dev:
 	nci_free_device(priv->ndev);
-error:
+error_free_gpio:
+	if (priv->config.reset_n_io)
+		gpio_free(priv->config.reset_n_io);
 	kfree(priv);
 	return ERR_PTR(rc);
 }
@@ -195,7 +200,7 @@ void nfcmrvl_nci_unregister_dev(struct n
 	nfcmrvl_fw_dnld_deinit(priv);
 
 	if (priv->config.reset_n_io)
-		devm_gpio_free(priv->dev, priv->config.reset_n_io);
+		gpio_free(priv->config.reset_n_io);
 
 	nci_unregister_device(ndev);
 	nci_free_device(ndev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nfc/nfcmrvl/uart.c linux-libre-4.9.52-gnu/drivers/nfc/nfcmrvl/uart.c
--- linux-libre-4.9-gnu/drivers/nfc/nfcmrvl/uart.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nfc/nfcmrvl/uart.c	2017-09-27 08:40:05.000000000 -0400
@@ -109,6 +109,7 @@ static int nfcmrvl_nci_uart_open(struct
 	struct nfcmrvl_private *priv;
 	struct nfcmrvl_platform_data *pdata = NULL;
 	struct nfcmrvl_platform_data config;
+	struct device *dev = nu->tty->dev;
 
 	/*
 	 * Platform data cannot be used here since usually it is already used
@@ -116,9 +117,8 @@ static int nfcmrvl_nci_uart_open(struct
 	 * and check if DT entries were added.
 	 */
 
-	if (nu->tty->dev->parent && nu->tty->dev->parent->of_node)
-		if (nfcmrvl_uart_parse_dt(nu->tty->dev->parent->of_node,
-					  &config) == 0)
+	if (dev && dev->parent && dev->parent->of_node)
+		if (nfcmrvl_uart_parse_dt(dev->parent->of_node, &config) == 0)
 			pdata = &config;
 
 	if (!pdata) {
@@ -131,7 +131,7 @@ static int nfcmrvl_nci_uart_open(struct
 	}
 
 	priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_UART, nu, &uart_ops,
-					nu->tty->dev, pdata);
+					dev, pdata);
 	if (IS_ERR(priv))
 		return PTR_ERR(priv);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nfc/port100.c linux-libre-4.9.52-gnu/drivers/nfc/port100.c
--- linux-libre-4.9-gnu/drivers/nfc/port100.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nfc/port100.c	2017-09-27 08:40:05.000000000 -0400
@@ -725,23 +725,33 @@ static int port100_submit_urb_for_ack(st
 
 static int port100_send_ack(struct port100 *dev)
 {
-	int rc;
+	int rc = 0;
 
 	mutex_lock(&dev->out_urb_lock);
 
-	init_completion(&dev->cmd_cancel_done);
+	/*
+	 * If prior cancel is in-flight (dev->cmd_cancel == true), we
+	 * can skip to send cancel. Then this will wait the prior
+	 * cancel, or merged into the next cancel rarely if next
+	 * cancel was started before waiting done. In any case, this
+	 * will be waked up soon or later.
+	 */
+	if (!dev->cmd_cancel) {
+		reinit_completion(&dev->cmd_cancel_done);
 
-	usb_kill_urb(dev->out_urb);
+		usb_kill_urb(dev->out_urb);
 
-	dev->out_urb->transfer_buffer = ack_frame;
-	dev->out_urb->transfer_buffer_length = sizeof(ack_frame);
-	rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
+		dev->out_urb->transfer_buffer = ack_frame;
+		dev->out_urb->transfer_buffer_length = sizeof(ack_frame);
+		rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
 
-	/* Set the cmd_cancel flag only if the URB has been successfully
-	 * submitted. It will be reset by the out URB completion callback
-	 * port100_send_complete().
-	 */
-	dev->cmd_cancel = !rc;
+		/*
+		 * Set the cmd_cancel flag only if the URB has been
+		 * successfully submitted. It will be reset by the out
+		 * URB completion callback port100_send_complete().
+		 */
+		dev->cmd_cancel = !rc;
+	}
 
 	mutex_unlock(&dev->out_urb_lock);
 
@@ -928,8 +938,8 @@ static void port100_send_complete(struct
 	struct port100 *dev = urb->context;
 
 	if (dev->cmd_cancel) {
+		complete_all(&dev->cmd_cancel_done);
 		dev->cmd_cancel = false;
-		complete(&dev->cmd_cancel_done);
 	}
 
 	switch (urb->status) {
@@ -1543,6 +1553,7 @@ static int port100_probe(struct usb_inte
 			    PORT100_COMM_RF_HEAD_MAX_LEN;
 	dev->skb_tailroom = PORT100_FRAME_TAIL_LEN;
 
+	init_completion(&dev->cmd_cancel_done);
 	INIT_WORK(&dev->cmd_complete_work, port100_wq_cmd_complete);
 
 	/* The first thing to do with the Port-100 is to set the command type
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ntb/ntb_transport.c linux-libre-4.9.52-gnu/drivers/ntb/ntb_transport.c
--- linux-libre-4.9-gnu/drivers/ntb/ntb_transport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ntb/ntb_transport.c	2017-09-27 08:40:05.000000000 -0400
@@ -176,14 +176,12 @@ struct ntb_transport_qp {
 	u64 rx_err_ver;
 	u64 rx_memcpy;
 	u64 rx_async;
-	u64 dma_rx_prep_err;
 	u64 tx_bytes;
 	u64 tx_pkts;
 	u64 tx_ring_full;
 	u64 tx_err_no_buf;
 	u64 tx_memcpy;
 	u64 tx_async;
-	u64 dma_tx_prep_err;
 };
 
 struct ntb_transport_mw {
@@ -256,8 +254,6 @@ enum {
 #define QP_TO_MW(nt, qp)	((qp) % nt->mw_count)
 #define NTB_QP_DEF_NUM_ENTRIES	100
 #define NTB_LINK_DOWN_TIMEOUT	10
-#define DMA_RETRIES		20
-#define DMA_OUT_RESOURCE_TO	msecs_to_jiffies(50)
 
 static void ntb_transport_rxc_db(unsigned long data);
 static const struct ntb_ctx_ops ntb_transport_ops;
@@ -518,12 +514,6 @@ static ssize_t debugfs_read(struct file
 	out_offset += snprintf(buf + out_offset, out_count - out_offset,
 			       "free tx - \t%u\n",
 			       ntb_transport_tx_free_entry(qp));
-	out_offset += snprintf(buf + out_offset, out_count - out_offset,
-			       "DMA tx prep err - \t%llu\n",
-			       qp->dma_tx_prep_err);
-	out_offset += snprintf(buf + out_offset, out_count - out_offset,
-			       "DMA rx prep err - \t%llu\n",
-			       qp->dma_rx_prep_err);
 
 	out_offset += snprintf(buf + out_offset, out_count - out_offset,
 			       "\n");
@@ -625,7 +615,7 @@ static int ntb_transport_setup_qp_mw(str
 	if (!mw->virt_addr)
 		return -ENOMEM;
 
-	if (qp_count % mw_count && mw_num + 1 < qp_count / mw_count)
+	if (mw_num < qp_count % mw_count)
 		num_qps_mw = qp_count / mw_count + 1;
 	else
 		num_qps_mw = qp_count / mw_count;
@@ -770,8 +760,6 @@ static void ntb_qp_link_down_reset(struc
 	qp->tx_err_no_buf = 0;
 	qp->tx_memcpy = 0;
 	qp->tx_async = 0;
-	qp->dma_tx_prep_err = 0;
-	qp->dma_rx_prep_err = 0;
 }
 
 static void ntb_qp_link_cleanup(struct ntb_transport_qp *qp)
@@ -933,10 +921,8 @@ out1:
 		ntb_free_mw(nt, i);
 
 	/* if there's an actual failure, we should just bail */
-	if (rc < 0) {
-		ntb_link_disable(ndev);
+	if (rc < 0)
 		return;
-	}
 
 out:
 	if (ntb_link_is_up(ndev, NULL, NULL) == 1)
@@ -1002,7 +988,7 @@ static int ntb_transport_init_queue(stru
 	qp->event_handler = NULL;
 	ntb_qp_link_down_reset(qp);
 
-	if (qp_count % mw_count && mw_num + 1 < qp_count / mw_count)
+	if (mw_num < qp_count % mw_count)
 		num_qps_mw = qp_count / mw_count + 1;
 	else
 		num_qps_mw = qp_count / mw_count;
@@ -1125,8 +1111,8 @@ static int ntb_transport_probe(struct nt
 	qp_count = ilog2(qp_bitmap);
 	if (max_num_clients && max_num_clients < qp_count)
 		qp_count = max_num_clients;
-	else if (mw_count < qp_count)
-		qp_count = mw_count;
+	else if (nt->mw_count < qp_count)
+		qp_count = nt->mw_count;
 
 	qp_bitmap &= BIT_ULL(qp_count) - 1;
 
@@ -1314,7 +1300,6 @@ static int ntb_async_rx_submit(struct nt
 	struct dmaengine_unmap_data *unmap;
 	dma_cookie_t cookie;
 	void *buf = entry->buf;
-	int retries = 0;
 
 	len = entry->len;
 	device = chan->device;
@@ -1343,22 +1328,11 @@ static int ntb_async_rx_submit(struct nt
 
 	unmap->from_cnt = 1;
 
-	for (retries = 0; retries < DMA_RETRIES; retries++) {
-		txd = device->device_prep_dma_memcpy(chan,
-						     unmap->addr[1],
-						     unmap->addr[0], len,
-						     DMA_PREP_INTERRUPT);
-		if (txd)
-			break;
-
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(DMA_OUT_RESOURCE_TO);
-	}
-
-	if (!txd) {
-		qp->dma_rx_prep_err++;
+	txd = device->device_prep_dma_memcpy(chan, unmap->addr[1],
+					     unmap->addr[0], len,
+					     DMA_PREP_INTERRUPT);
+	if (!txd)
 		goto err_get_unmap;
-	}
 
 	txd->callback_result = ntb_rx_copy_callback;
 	txd->callback_param = entry;
@@ -1603,7 +1577,6 @@ static int ntb_async_tx_submit(struct nt
 	struct dmaengine_unmap_data *unmap;
 	dma_addr_t dest;
 	dma_cookie_t cookie;
-	int retries = 0;
 
 	device = chan->device;
 	dest = qp->tx_mw_phys + qp->tx_max_frame * entry->tx_index;
@@ -1625,21 +1598,10 @@ static int ntb_async_tx_submit(struct nt
 
 	unmap->to_cnt = 1;
 
-	for (retries = 0; retries < DMA_RETRIES; retries++) {
-		txd = device->device_prep_dma_memcpy(chan, dest,
-						     unmap->addr[0], len,
-						     DMA_PREP_INTERRUPT);
-		if (txd)
-			break;
-
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(DMA_OUT_RESOURCE_TO);
-	}
-
-	if (!txd) {
-		qp->dma_tx_prep_err++;
+	txd = device->device_prep_dma_memcpy(chan, dest, unmap->addr[0], len,
+					     DMA_PREP_INTERRUPT);
+	if (!txd)
 		goto err_get_unmap;
-	}
 
 	txd->callback_result = ntb_tx_copy_callback;
 	txd->callback_param = entry;
@@ -1799,7 +1761,7 @@ ntb_transport_create_queue(void *data, s
 
 	node = dev_to_node(&ndev->dev);
 
-	free_queue = ffs(nt->qp_bitmap);
+	free_queue = ffs(nt->qp_bitmap_free);
 	if (!free_queue)
 		goto err;
 
@@ -2270,9 +2232,8 @@ module_init(ntb_transport_init);
 
 static void __exit ntb_transport_exit(void)
 {
-	debugfs_remove_recursive(nt_debugfs_dir);
-
 	ntb_unregister_client(&ntb_transport_client);
 	bus_unregister(&ntb_transport_bus);
+	debugfs_remove_recursive(nt_debugfs_dir);
 }
 module_exit(ntb_transport_exit);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ntb/test/ntb_perf.c linux-libre-4.9.52-gnu/drivers/ntb/test/ntb_perf.c
--- linux-libre-4.9-gnu/drivers/ntb/test/ntb_perf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ntb/test/ntb_perf.c	2017-09-27 08:40:05.000000000 -0400
@@ -265,6 +265,8 @@ static ssize_t perf_copy(struct pthr_ctx
 	if (dma_submit_error(cookie))
 		goto err_set_unmap;
 
+	dmaengine_unmap_put(unmap);
+
 	atomic_inc(&pctx->dma_sync);
 	dma_async_issue_pending(chan);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/btt.c linux-libre-4.9.52-gnu/drivers/nvdimm/btt.c
--- linux-libre-4.9-gnu/drivers/nvdimm/btt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/btt.c	2017-09-27 08:40:05.000000000 -0400
@@ -1203,10 +1203,13 @@ static int btt_rw_page(struct block_devi
 		struct page *page, bool is_write)
 {
 	struct btt *btt = bdev->bd_disk->private_data;
+	int rc;
 
-	btt_do_bvec(btt, NULL, page, PAGE_SIZE, 0, is_write, sector);
-	page_endio(page, is_write, 0);
-	return 0;
+	rc = btt_do_bvec(btt, NULL, page, PAGE_SIZE, 0, is_write, sector);
+	if (rc == 0)
+		page_endio(page, is_write, 0);
+
+	return rc;
 }
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/bus.c linux-libre-4.9.52-gnu/drivers/nvdimm/bus.c
--- linux-libre-4.9-gnu/drivers/nvdimm/bus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/bus.c	2017-09-27 08:40:05.000000000 -0400
@@ -218,7 +218,10 @@ long nvdimm_clear_poison(struct device *
 	if (cmd_rc < 0)
 		return cmd_rc;
 
-	nvdimm_clear_from_poison_list(nvdimm_bus, phys, len);
+	if (clear_err.cleared > 0)
+		nvdimm_clear_from_poison_list(nvdimm_bus, phys,
+					      clear_err.cleared);
+
 	return clear_err.cleared;
 }
 EXPORT_SYMBOL_GPL(nvdimm_clear_poison);
@@ -934,8 +937,14 @@ static int __nd_ioctl(struct nvdimm_bus
 	rc = nd_desc->ndctl(nd_desc, nvdimm, cmd, buf, buf_len, NULL);
 	if (rc < 0)
 		goto out_unlock;
+	nvdimm_bus_unlock(&nvdimm_bus->dev);
+
 	if (copy_to_user(p, buf, buf_len))
 		rc = -EFAULT;
+
+	vfree(buf);
+	return rc;
+
  out_unlock:
 	nvdimm_bus_unlock(&nvdimm_bus->dev);
  out:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/core.c linux-libre-4.9.52-gnu/drivers/nvdimm/core.c
--- linux-libre-4.9-gnu/drivers/nvdimm/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -450,14 +450,15 @@ static void set_badblock(struct badblock
 static void __add_badblock_range(struct badblocks *bb, u64 ns_offset, u64 len)
 {
 	const unsigned int sector_size = 512;
-	sector_t start_sector;
+	sector_t start_sector, end_sector;
 	u64 num_sectors;
 	u32 rem;
 
 	start_sector = div_u64(ns_offset, sector_size);
-	num_sectors = div_u64_rem(len, sector_size, &rem);
+	end_sector = div_u64_rem(ns_offset + len, sector_size, &rem);
 	if (rem)
-		num_sectors++;
+		end_sector++;
+	num_sectors = end_sector - start_sector;
 
 	if (unlikely(num_sectors > (u64)INT_MAX)) {
 		u64 remaining = num_sectors;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/dimm_devs.c linux-libre-4.9.52-gnu/drivers/nvdimm/dimm_devs.c
--- linux-libre-4.9-gnu/drivers/nvdimm/dimm_devs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/dimm_devs.c	2017-09-27 08:40:05.000000000 -0400
@@ -388,7 +388,7 @@ EXPORT_SYMBOL_GPL(nvdimm_create);
 
 int alias_dpa_busy(struct device *dev, void *data)
 {
-	resource_size_t map_end, blk_start, new, busy;
+	resource_size_t map_end, blk_start, new;
 	struct blk_alloc_info *info = data;
 	struct nd_mapping *nd_mapping;
 	struct nd_region *nd_region;
@@ -429,29 +429,19 @@ int alias_dpa_busy(struct device *dev, v
  retry:
 	/*
 	 * Find the free dpa from the end of the last pmem allocation to
-	 * the end of the interleave-set mapping that is not already
-	 * covered by a blk allocation.
+	 * the end of the interleave-set mapping.
 	 */
-	busy = 0;
 	for_each_dpa_resource(ndd, res) {
+		if (strncmp(res->name, "pmem", 4) != 0)
+			continue;
 		if ((res->start >= blk_start && res->start < map_end)
 				|| (res->end >= blk_start
 					&& res->end <= map_end)) {
-			if (strncmp(res->name, "pmem", 4) == 0) {
-				new = max(blk_start, min(map_end + 1,
-							res->end + 1));
-				if (new != blk_start) {
-					blk_start = new;
-					goto retry;
-				}
-			} else
-				busy += min(map_end, res->end)
-					- max(nd_mapping->start, res->start) + 1;
-		} else if (nd_mapping->start > res->start
-				&& map_end < res->end) {
-			/* total eclipse of the PMEM region mapping */
-			busy += nd_mapping->size;
-			break;
+			new = max(blk_start, min(map_end + 1, res->end + 1));
+			if (new != blk_start) {
+				blk_start = new;
+				goto retry;
+			}
 		}
 	}
 
@@ -463,52 +453,11 @@ int alias_dpa_busy(struct device *dev, v
 		return 1;
 	}
 
-	info->available -= blk_start - nd_mapping->start + busy;
+	info->available -= blk_start - nd_mapping->start;
 
 	return 0;
 }
 
-static int blk_dpa_busy(struct device *dev, void *data)
-{
-	struct blk_alloc_info *info = data;
-	struct nd_mapping *nd_mapping;
-	struct nd_region *nd_region;
-	resource_size_t map_end;
-	int i;
-
-	if (!is_nd_pmem(dev))
-		return 0;
-
-	nd_region = to_nd_region(dev);
-	for (i = 0; i < nd_region->ndr_mappings; i++) {
-		nd_mapping  = &nd_region->mapping[i];
-		if (nd_mapping->nvdimm == info->nd_mapping->nvdimm)
-			break;
-	}
-
-	if (i >= nd_region->ndr_mappings)
-		return 0;
-
-	map_end = nd_mapping->start + nd_mapping->size - 1;
-	if (info->res->start >= nd_mapping->start
-			&& info->res->start < map_end) {
-		if (info->res->end <= map_end) {
-			info->busy = 0;
-			return 1;
-		} else {
-			info->busy -= info->res->end - map_end;
-			return 0;
-		}
-	} else if (info->res->end >= nd_mapping->start
-			&& info->res->end <= map_end) {
-		info->busy -= nd_mapping->start - info->res->start;
-		return 0;
-	} else {
-		info->busy -= nd_mapping->size;
-		return 0;
-	}
-}
-
 /**
  * nd_blk_available_dpa - account the unused dpa of BLK region
  * @nd_mapping: container of dpa-resource-root + labels
@@ -538,11 +487,7 @@ resource_size_t nd_blk_available_dpa(str
 	for_each_dpa_resource(ndd, res) {
 		if (strncmp(res->name, "blk", 3) != 0)
 			continue;
-
-		info.res = res;
-		info.busy = resource_size(res);
-		device_for_each_child(&nvdimm_bus->dev, &info, blk_dpa_busy);
-		info.available -= info.busy;
+		info.available -= resource_size(res);
 	}
 
 	return info.available;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/namespace_devs.c linux-libre-4.9.52-gnu/drivers/nvdimm/namespace_devs.c
--- linux-libre-4.9-gnu/drivers/nvdimm/namespace_devs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/namespace_devs.c	2017-09-27 08:40:05.000000000 -0400
@@ -957,25 +957,28 @@ static ssize_t __size_store(struct devic
 {
 	resource_size_t allocated = 0, available = 0;
 	struct nd_region *nd_region = to_nd_region(dev->parent);
+	struct nd_namespace_common *ndns = to_ndns(dev);
 	struct nd_mapping *nd_mapping;
 	struct nvdimm_drvdata *ndd;
 	struct nd_label_id label_id;
 	u32 flags = 0, remainder;
+	int rc, i, id = -1;
 	u8 *uuid = NULL;
-	int rc, i;
 
-	if (dev->driver || to_ndns(dev)->claim)
+	if (dev->driver || ndns->claim)
 		return -EBUSY;
 
 	if (is_namespace_pmem(dev)) {
 		struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);
 
 		uuid = nspm->uuid;
+		id = nspm->id;
 	} else if (is_namespace_blk(dev)) {
 		struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);
 
 		uuid = nsblk->uuid;
 		flags = NSLABEL_FLAG_LOCAL;
+		id = nsblk->id;
 	}
 
 	/*
@@ -1034,20 +1037,17 @@ static ssize_t __size_store(struct devic
 
 		nd_namespace_pmem_set_resource(nd_region, nspm,
 				val * nd_region->ndr_mappings);
-	} else if (is_namespace_blk(dev)) {
-		struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);
-
-		/*
-		 * Try to delete the namespace if we deleted all of its
-		 * allocation, this is not the seed device for the
-		 * region, and it is not actively claimed by a btt
-		 * instance.
-		 */
-		if (val == 0 && nd_region->ns_seed != dev
-				&& !nsblk->common.claim)
-			nd_device_unregister(dev, ND_ASYNC);
 	}
 
+	/*
+	 * Try to delete the namespace if we deleted all of its
+	 * allocation, this is not the seed or 0th device for the
+	 * region, and it is not actively claimed by a btt, pfn, or dax
+	 * instance.
+	 */
+	if (val == 0 && id != 0 && nd_region->ns_seed != dev && !ndns->claim)
+		nd_device_unregister(dev, ND_ASYNC);
+
 	return rc;
 }
 
@@ -1700,6 +1700,7 @@ static int select_pmem_id(struct nd_regi
 struct device *create_namespace_pmem(struct nd_region *nd_region,
 		struct nd_namespace_label *nd_label)
 {
+	u64 altcookie = nd_region_interleave_set_altcookie(nd_region);
 	u64 cookie = nd_region_interleave_set_cookie(nd_region);
 	struct nd_label_ent *label_ent;
 	struct nd_namespace_pmem *nspm;
@@ -1718,7 +1719,11 @@ struct device *create_namespace_pmem(str
 	if (__le64_to_cpu(nd_label->isetcookie) != cookie) {
 		dev_dbg(&nd_region->dev, "invalid cookie in label: %pUb\n",
 				nd_label->uuid);
-		return ERR_PTR(-EAGAIN);
+		if (__le64_to_cpu(nd_label->isetcookie) != altcookie)
+			return ERR_PTR(-EAGAIN);
+
+		dev_dbg(&nd_region->dev, "valid altcookie in label: %pUb\n",
+				nd_label->uuid);
 	}
 
 	nspm = kzalloc(sizeof(*nspm), GFP_KERNEL);
@@ -1733,9 +1738,14 @@ struct device *create_namespace_pmem(str
 	res->name = dev_name(&nd_region->dev);
 	res->flags = IORESOURCE_MEM;
 
-	for (i = 0; i < nd_region->ndr_mappings; i++)
-		if (!has_uuid_at_pos(nd_region, nd_label->uuid, cookie, i))
-			break;
+	for (i = 0; i < nd_region->ndr_mappings; i++) {
+		if (has_uuid_at_pos(nd_region, nd_label->uuid, cookie, i))
+			continue;
+		if (has_uuid_at_pos(nd_region, nd_label->uuid, altcookie, i))
+			continue;
+		break;
+	}
+
 	if (i < nd_region->ndr_mappings) {
 		struct nvdimm_drvdata *ndd = to_ndd(&nd_region->mapping[i]);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/nd.h linux-libre-4.9.52-gnu/drivers/nvdimm/nd.h
--- linux-libre-4.9-gnu/drivers/nvdimm/nd.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/nd.h	2017-09-27 08:40:05.000000000 -0400
@@ -327,6 +327,7 @@ struct nd_region *to_nd_region(struct de
 int nd_region_to_nstype(struct nd_region *nd_region);
 int nd_region_register_namespaces(struct nd_region *nd_region, int *err);
 u64 nd_region_interleave_set_cookie(struct nd_region *nd_region);
+u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region);
 void nvdimm_bus_lock(struct device *dev);
 void nvdimm_bus_unlock(struct device *dev);
 bool is_nvdimm_bus_locked(struct device *dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/pfn_devs.c linux-libre-4.9.52-gnu/drivers/nvdimm/pfn_devs.c
--- linux-libre-4.9-gnu/drivers/nvdimm/pfn_devs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/pfn_devs.c	2017-09-27 08:40:05.000000000 -0400
@@ -108,7 +108,7 @@ static ssize_t align_show(struct device
 {
 	struct nd_pfn *nd_pfn = to_nd_pfn_safe(dev);
 
-	return sprintf(buf, "%lx\n", nd_pfn->align);
+	return sprintf(buf, "%ld\n", nd_pfn->align);
 }
 
 static ssize_t __align_store(struct nd_pfn *nd_pfn, const char *buf)
@@ -538,7 +538,8 @@ static struct vmem_altmap *__nvdimm_setu
 		nd_pfn->npfns = le64_to_cpu(pfn_sb->npfns);
 		altmap = NULL;
 	} else if (nd_pfn->mode == PFN_MODE_PMEM) {
-		nd_pfn->npfns = (resource_size(res) - offset) / PAGE_SIZE;
+		nd_pfn->npfns = PFN_SECTION_ALIGN_UP((resource_size(res)
+					- offset) / PAGE_SIZE);
 		if (le64_to_cpu(nd_pfn->pfn_sb->npfns) > nd_pfn->npfns)
 			dev_info(&nd_pfn->dev,
 					"number of pfns truncated from %lld to %ld\n",
@@ -625,17 +626,15 @@ static int nd_pfn_init(struct nd_pfn *nd
 	 */
 	start += start_pad;
 	size = resource_size(&nsio->res);
-	npfns = (size - start_pad - end_trunc - SZ_8K) / SZ_4K;
+	npfns = PFN_SECTION_ALIGN_UP((size - start_pad - end_trunc - SZ_8K)
+			/ PAGE_SIZE);
 	if (nd_pfn->mode == PFN_MODE_PMEM) {
-		unsigned long memmap_size;
-
 		/*
 		 * vmemmap_populate_hugepages() allocates the memmap array in
 		 * HPAGE_SIZE chunks.
 		 */
-		memmap_size = ALIGN(64 * npfns, HPAGE_SIZE);
-		offset = ALIGN(start + SZ_8K + memmap_size + dax_label_reserve,
-				nd_pfn->align) - start;
+		offset = ALIGN(start + SZ_8K + 64 * npfns + dax_label_reserve,
+				max(nd_pfn->align, HPAGE_SIZE)) - start;
 	} else if (nd_pfn->mode == PFN_MODE_RAM)
 		offset = ALIGN(start + SZ_8K + dax_label_reserve,
 				nd_pfn->align) - start;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/pmem.c linux-libre-4.9.52-gnu/drivers/nvdimm/pmem.c
--- linux-libre-4.9-gnu/drivers/nvdimm/pmem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/pmem.c	2017-09-27 08:40:05.000000000 -0400
@@ -87,7 +87,9 @@ static int read_pmem(struct page *page,
 
 	rc = memcpy_from_pmem(mem + off, pmem_addr, len);
 	kunmap_atomic(mem);
-	return rc;
+	if (rc)
+		return -EIO;
+	return 0;
 }
 
 static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
@@ -383,12 +385,12 @@ static void nd_pmem_shutdown(struct devi
 
 static void nd_pmem_notify(struct device *dev, enum nvdimm_event event)
 {
-	struct pmem_device *pmem = dev_get_drvdata(dev);
-	struct nd_region *nd_region = to_region(pmem);
+	struct nd_region *nd_region;
 	resource_size_t offset = 0, end_trunc = 0;
 	struct nd_namespace_common *ndns;
 	struct nd_namespace_io *nsio;
 	struct resource res;
+	struct badblocks *bb;
 
 	if (event != NVDIMM_REVALIDATE_POISON)
 		return;
@@ -397,20 +399,33 @@ static void nd_pmem_notify(struct device
 		struct nd_btt *nd_btt = to_nd_btt(dev);
 
 		ndns = nd_btt->ndns;
-	} else if (is_nd_pfn(dev)) {
-		struct nd_pfn *nd_pfn = to_nd_pfn(dev);
-		struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
+		nd_region = to_nd_region(ndns->dev.parent);
+		nsio = to_nd_namespace_io(&ndns->dev);
+		bb = &nsio->bb;
+	} else {
+		struct pmem_device *pmem = dev_get_drvdata(dev);
 
-		ndns = nd_pfn->ndns;
-		offset = pmem->data_offset + __le32_to_cpu(pfn_sb->start_pad);
-		end_trunc = __le32_to_cpu(pfn_sb->end_trunc);
-	} else
-		ndns = to_ndns(dev);
+		nd_region = to_region(pmem);
+		bb = &pmem->bb;
+
+		if (is_nd_pfn(dev)) {
+			struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+			struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
+
+			ndns = nd_pfn->ndns;
+			offset = pmem->data_offset +
+					__le32_to_cpu(pfn_sb->start_pad);
+			end_trunc = __le32_to_cpu(pfn_sb->end_trunc);
+		} else {
+			ndns = to_ndns(dev);
+		}
+
+		nsio = to_nd_namespace_io(&ndns->dev);
+	}
 
-	nsio = to_nd_namespace_io(&ndns->dev);
 	res.start = nsio->res.start + offset;
 	res.end = nsio->res.end - end_trunc;
-	nvdimm_badblocks_populate(nd_region, &pmem->bb, &res);
+	nvdimm_badblocks_populate(nd_region, bb, &res);
 }
 
 MODULE_ALIAS("pmem");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvdimm/region_devs.c linux-libre-4.9.52-gnu/drivers/nvdimm/region_devs.c
--- linux-libre-4.9-gnu/drivers/nvdimm/region_devs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvdimm/region_devs.c	2017-09-27 08:40:05.000000000 -0400
@@ -505,6 +505,15 @@ u64 nd_region_interleave_set_cookie(stru
 	return 0;
 }
 
+u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region)
+{
+	struct nd_interleave_set *nd_set = nd_region->nd_set;
+
+	if (nd_set)
+		return nd_set->altcookie;
+	return 0;
+}
+
 void nd_mapping_free_labels(struct nd_mapping *nd_mapping)
 {
 	struct nd_label_ent *label_ent, *e;
@@ -959,17 +968,20 @@ EXPORT_SYMBOL_GPL(nvdimm_flush);
  */
 int nvdimm_has_flush(struct nd_region *nd_region)
 {
-	struct nd_region_data *ndrd = dev_get_drvdata(&nd_region->dev);
 	int i;
 
 	/* no nvdimm == flushing capability unknown */
 	if (nd_region->ndr_mappings == 0)
 		return -ENXIO;
 
-	for (i = 0; i < nd_region->ndr_mappings; i++)
-		/* flush hints present, flushing required */
-		if (ndrd_get_flush_wpq(ndrd, i, 0))
+	for (i = 0; i < nd_region->ndr_mappings; i++) {
+		struct nd_mapping *nd_mapping = &nd_region->mapping[i];
+		struct nvdimm *nvdimm = nd_mapping->nvdimm;
+
+		/* flush hints present / available */
+		if (nvdimm->num_flush)
 			return 1;
+	}
 
 	/*
 	 * The platform defines dimm devices without hints, assume
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/host/core.c linux-libre-4.9.52-gnu/drivers/nvme/host/core.c
--- linux-libre-4.9-gnu/drivers/nvme/host/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/host/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1122,12 +1122,7 @@ int nvme_disable_ctrl(struct nvme_ctrl *
 	if (ret)
 		return ret;
 
-	/* Checking for ctrl->tagset is a trick to avoid sleeping on module
-	 * load, since we only need the quirk on reset_controller. Notice
-	 * that the HGST device needs this delay only in firmware activation
-	 * procedure; unfortunately we have no (easy) way to verify this.
-	 */
-	if ((ctrl->quirks & NVME_QUIRK_DELAY_BEFORE_CHK_RDY) && ctrl->tagset)
+	if (ctrl->quirks & NVME_QUIRK_DELAY_BEFORE_CHK_RDY)
 		msleep(NVME_QUIRK_DELAY_AMOUNT);
 
 	return nvme_wait_ready(ctrl, cap, false);
@@ -1209,8 +1204,8 @@ static void nvme_set_queue_limits(struct
 		blk_queue_max_hw_sectors(q, ctrl->max_hw_sectors);
 		blk_queue_max_segments(q, min_t(u32, max_segments, USHRT_MAX));
 	}
-	if (ctrl->stripe_size)
-		blk_queue_chunk_sectors(q, ctrl->stripe_size >> 9);
+	if (ctrl->quirks & NVME_QUIRK_STRIPE_SIZE)
+		blk_queue_chunk_sectors(q, ctrl->max_hw_sectors);
 	blk_queue_virt_boundary(q, ctrl->page_size - 1);
 	if (ctrl->vwc & NVME_CTRL_VWC_PRESENT)
 		vwc = true;
@@ -1266,19 +1261,6 @@ int nvme_init_identify(struct nvme_ctrl
 	ctrl->max_hw_sectors =
 		min_not_zero(ctrl->max_hw_sectors, max_hw_sectors);
 
-	if ((ctrl->quirks & NVME_QUIRK_STRIPE_SIZE) && id->vs[3]) {
-		unsigned int max_hw_sectors;
-
-		ctrl->stripe_size = 1 << (id->vs[3] + page_shift);
-		max_hw_sectors = ctrl->stripe_size >> (page_shift - 9);
-		if (ctrl->max_hw_sectors) {
-			ctrl->max_hw_sectors = min(max_hw_sectors,
-							ctrl->max_hw_sectors);
-		} else {
-			ctrl->max_hw_sectors = max_hw_sectors;
-		}
-	}
-
 	nvme_set_queue_limits(ctrl, ctrl->admin_q);
 	ctrl->sgls = le32_to_cpu(id->sgls);
 	ctrl->kas = le16_to_cpu(id->kas);
@@ -1743,7 +1725,6 @@ static void nvme_ns_remove(struct nvme_n
 		sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
 					&nvme_ns_attr_group);
 		del_gendisk(ns->disk);
-		blk_mq_abort_requeue_list(ns->queue);
 		blk_cleanup_queue(ns->queue);
 	}
 
@@ -2062,12 +2043,20 @@ void nvme_kill_queues(struct nvme_ctrl *
 		 * Revalidating a dead namespace sets capacity to 0. This will
 		 * end buffered writers dirtying pages that can't be synced.
 		 */
-		if (ns->disk && !test_and_set_bit(NVME_NS_DEAD, &ns->flags))
-			revalidate_disk(ns->disk);
-
+		if (!ns->disk || test_and_set_bit(NVME_NS_DEAD, &ns->flags))
+			continue;
+		revalidate_disk(ns->disk);
 		blk_set_queue_dying(ns->queue);
-		blk_mq_abort_requeue_list(ns->queue);
-		blk_mq_start_stopped_hw_queues(ns->queue, true);
+
+		/*
+		 * Forcibly start all queues to avoid having stuck requests.
+		 * Note that we must ensure the queues are not stopped
+		 * when the final removal happens.
+		 */
+		blk_mq_start_hw_queues(ns->queue);
+
+		/* draining requests in requeue list */
+		blk_mq_kick_requeue_list(ns->queue);
 	}
 	mutex_unlock(&ctrl->namespaces_mutex);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/host/fabrics.c linux-libre-4.9.52-gnu/drivers/nvme/host/fabrics.c
--- linux-libre-4.9-gnu/drivers/nvme/host/fabrics.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/host/fabrics.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,7 +77,7 @@ static struct nvmf_host *nvmf_host_defau
 	kref_init(&host->ref);
 	uuid_be_gen(&host->id);
 	snprintf(host->nqn, NVMF_NQN_SIZE,
-		"nqn.2014-08.org.nvmexpress:NVMf:uuid:%pUb", &host->id);
+		"nqn.2014-08.org.nvmexpress:uuid:%pUb", &host->id);
 
 	mutex_lock(&nvmf_hosts_mutex);
 	list_add_tail(&host->list, &nvmf_hosts);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/host/nvme.h linux-libre-4.9.52-gnu/drivers/nvme/host/nvme.h
--- linux-libre-4.9-gnu/drivers/nvme/host/nvme.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/host/nvme.h	2017-09-27 08:40:05.000000000 -0400
@@ -121,7 +121,6 @@ struct nvme_ctrl {
 
 	u32 page_size;
 	u32 max_hw_sectors;
-	u32 stripe_size;
 	u16 oncs;
 	u16 vid;
 	atomic_t abort_limit;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/host/pci.c linux-libre-4.9.52-gnu/drivers/nvme/host/pci.c
--- linux-libre-4.9-gnu/drivers/nvme/host/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/host/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -1384,6 +1384,11 @@ static inline void nvme_release_cmb(stru
 	if (dev->cmb) {
 		iounmap(dev->cmb);
 		dev->cmb = NULL;
+		if (dev->cmbsz) {
+			sysfs_remove_file_from_group(&dev->ctrl.device->kobj,
+						     &dev_attr_cmb.attr, NULL);
+			dev->cmbsz = 0;
+		}
 	}
 }
 
@@ -1655,6 +1660,7 @@ static void nvme_pci_disable(struct nvme
 {
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 
+	nvme_release_cmb(dev);
 	pci_free_irq_vectors(pdev);
 
 	if (pci_is_enabled(pdev)) {
@@ -1983,15 +1989,16 @@ static void nvme_remove(struct pci_dev *
 
 	pci_set_drvdata(pdev, NULL);
 
-	if (!pci_device_is_present(pdev))
+	if (!pci_device_is_present(pdev)) {
 		nvme_change_ctrl_state(&dev->ctrl, NVME_CTRL_DEAD);
+		nvme_dev_disable(dev, false);
+	}
 
 	flush_work(&dev->reset_work);
 	nvme_uninit_ctrl(&dev->ctrl);
 	nvme_dev_disable(dev, true);
 	nvme_dev_remove_admin(dev);
 	nvme_free_queues(dev, 0);
-	nvme_release_cmb(dev);
 	nvme_release_prp_pools(dev);
 	nvme_dev_unmap(dev);
 	nvme_put_ctrl(&dev->ctrl);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/host/rdma.c linux-libre-4.9.52-gnu/drivers/nvme/host/rdma.c
--- linux-libre-4.9-gnu/drivers/nvme/host/rdma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/host/rdma.c	2017-09-27 08:40:05.000000000 -0400
@@ -88,7 +88,7 @@ enum nvme_rdma_queue_flags {
 
 struct nvme_rdma_queue {
 	struct nvme_rdma_qe	*rsp_ring;
-	u8			sig_count;
+	atomic_t		sig_count;
 	int			queue_size;
 	size_t			cmnd_capsule_len;
 	struct nvme_rdma_ctrl	*ctrl;
@@ -555,6 +555,7 @@ static int nvme_rdma_init_queue(struct n
 		queue->cmnd_capsule_len = sizeof(struct nvme_command);
 
 	queue->queue_size = queue_size;
+	atomic_set(&queue->sig_count, 0);
 
 	queue->cm_id = rdma_create_id(&init_net, nvme_rdma_cm_handler, queue,
 			RDMA_PS_TCP, IB_QPT_RC);
@@ -1011,6 +1012,18 @@ static void nvme_rdma_send_done(struct i
 		nvme_rdma_wr_error(cq, wc, "SEND");
 }
 
+/*
+ * We want to signal completion at least every queue depth/2.  This returns the
+ * largest power of two that is not above half of (queue size + 1) to optimize
+ * (avoid divisions).
+ */
+static inline bool nvme_rdma_queue_sig_limit(struct nvme_rdma_queue *queue)
+{
+	int limit = 1 << ilog2((queue->queue_size + 1) / 2);
+
+	return (atomic_inc_return(&queue->sig_count) & (limit - 1)) == 0;
+}
+
 static int nvme_rdma_post_send(struct nvme_rdma_queue *queue,
 		struct nvme_rdma_qe *qe, struct ib_sge *sge, u32 num_sge,
 		struct ib_send_wr *first, bool flush)
@@ -1038,9 +1051,6 @@ static int nvme_rdma_post_send(struct nv
 	 * Would have been way to obvious to handle this in hardware or
 	 * at least the RDMA stack..
 	 *
-	 * This messy and racy code sniplet is copy and pasted from the iSER
-	 * initiator, and the magic '32' comes from there as well.
-	 *
 	 * Always signal the flushes. The magic request used for the flush
 	 * sequencer is not allocated in our driver's tagset and it's
 	 * triggered to be freed by blk_cleanup_queue(). So we need to
@@ -1048,7 +1058,7 @@ static int nvme_rdma_post_send(struct nv
 	 * embeded in request's payload, is not freed when __ib_process_cq()
 	 * calls wr_cqe->done().
 	 */
-	if ((++queue->sig_count % 32) == 0 || flush)
+	if (nvme_rdma_queue_sig_limit(queue) || flush)
 		wr.send_flags |= IB_SEND_SIGNALED;
 
 	if (first)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/target/configfs.c linux-libre-4.9.52-gnu/drivers/nvme/target/configfs.c
--- linux-libre-4.9-gnu/drivers/nvme/target/configfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/target/configfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -271,7 +271,7 @@ static ssize_t nvmet_ns_device_path_stor
 
 	mutex_lock(&subsys->lock);
 	ret = -EBUSY;
-	if (nvmet_ns_enabled(ns))
+	if (ns->enabled)
 		goto out_unlock;
 
 	kfree(ns->device_path);
@@ -307,7 +307,7 @@ static ssize_t nvmet_ns_device_nguid_sto
 	int ret = 0;
 
 	mutex_lock(&subsys->lock);
-	if (nvmet_ns_enabled(ns)) {
+	if (ns->enabled) {
 		ret = -EBUSY;
 		goto out_unlock;
 	}
@@ -339,7 +339,7 @@ CONFIGFS_ATTR(nvmet_ns_, device_nguid);
 
 static ssize_t nvmet_ns_enable_show(struct config_item *item, char *page)
 {
-	return sprintf(page, "%d\n", nvmet_ns_enabled(to_nvmet_ns(item)));
+	return sprintf(page, "%d\n", to_nvmet_ns(item)->enabled);
 }
 
 static ssize_t nvmet_ns_enable_store(struct config_item *item,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/target/core.c linux-libre-4.9.52-gnu/drivers/nvme/target/core.c
--- linux-libre-4.9-gnu/drivers/nvme/target/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/target/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -264,7 +264,7 @@ int nvmet_ns_enable(struct nvmet_ns *ns)
 	int ret = 0;
 
 	mutex_lock(&subsys->lock);
-	if (!list_empty(&ns->dev_link))
+	if (ns->enabled)
 		goto out_unlock;
 
 	ns->bdev = blkdev_get_by_path(ns->device_path, FMODE_READ | FMODE_WRITE,
@@ -309,6 +309,7 @@ int nvmet_ns_enable(struct nvmet_ns *ns)
 	list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)
 		nvmet_add_async_event(ctrl, NVME_AER_TYPE_NOTICE, 0, 0);
 
+	ns->enabled = true;
 	ret = 0;
 out_unlock:
 	mutex_unlock(&subsys->lock);
@@ -325,11 +326,11 @@ void nvmet_ns_disable(struct nvmet_ns *n
 	struct nvmet_ctrl *ctrl;
 
 	mutex_lock(&subsys->lock);
-	if (list_empty(&ns->dev_link)) {
-		mutex_unlock(&subsys->lock);
-		return;
-	}
-	list_del_init(&ns->dev_link);
+	if (!ns->enabled)
+		goto out_unlock;
+
+	ns->enabled = false;
+	list_del_rcu(&ns->dev_link);
 	mutex_unlock(&subsys->lock);
 
 	/*
@@ -351,6 +352,7 @@ void nvmet_ns_disable(struct nvmet_ns *n
 
 	if (ns->bdev)
 		blkdev_put(ns->bdev, FMODE_WRITE|FMODE_READ);
+out_unlock:
 	mutex_unlock(&subsys->lock);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/target/nvmet.h linux-libre-4.9.52-gnu/drivers/nvme/target/nvmet.h
--- linux-libre-4.9-gnu/drivers/nvme/target/nvmet.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/target/nvmet.h	2017-09-27 08:40:05.000000000 -0400
@@ -47,6 +47,7 @@ struct nvmet_ns {
 	loff_t			size;
 	u8			nguid[16];
 
+	bool			enabled;
 	struct nvmet_subsys	*subsys;
 	const char		*device_path;
 
@@ -61,11 +62,6 @@ static inline struct nvmet_ns *to_nvmet_
 	return container_of(to_config_group(item), struct nvmet_ns, group);
 }
 
-static inline bool nvmet_ns_enabled(struct nvmet_ns *ns)
-{
-	return !list_empty_careful(&ns->dev_link);
-}
-
 struct nvmet_cq {
 	u16			qid;
 	u16			size;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvme/target/rdma.c linux-libre-4.9.52-gnu/drivers/nvme/target/rdma.c
--- linux-libre-4.9-gnu/drivers/nvme/target/rdma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvme/target/rdma.c	2017-09-27 08:40:05.000000000 -0400
@@ -438,6 +438,10 @@ static int nvmet_rdma_post_recv(struct n
 {
 	struct ib_recv_wr *bad_wr;
 
+	ib_dma_sync_single_for_device(ndev->device,
+		cmd->sge[0].addr, cmd->sge[0].length,
+		DMA_FROM_DEVICE);
+
 	if (ndev->srq)
 		return ib_post_srq_recv(ndev->srq, &cmd->wr, &bad_wr);
 	return ib_post_recv(cmd->queue->cm_id->qp, &cmd->wr, &bad_wr);
@@ -538,6 +542,11 @@ static void nvmet_rdma_queue_response(st
 		first_wr = &rsp->send_wr;
 
 	nvmet_rdma_post_recv(rsp->queue->dev, rsp->cmd);
+
+	ib_dma_sync_single_for_device(rsp->queue->dev->device,
+		rsp->send_sge.addr, rsp->send_sge.length,
+		DMA_TO_DEVICE);
+
 	if (ib_post_send(cm_id->qp, first_wr, &bad_wr)) {
 		pr_err("sending cmd response failed\n");
 		nvmet_rdma_release_rsp(rsp);
@@ -698,6 +707,14 @@ static void nvmet_rdma_handle_command(st
 	cmd->n_rdma = 0;
 	cmd->req.port = queue->port;
 
+
+	ib_dma_sync_single_for_cpu(queue->dev->device,
+		cmd->cmd->sge[0].addr, cmd->cmd->sge[0].length,
+		DMA_FROM_DEVICE);
+	ib_dma_sync_single_for_cpu(queue->dev->device,
+		cmd->send_sge.addr, cmd->send_sge.length,
+		DMA_TO_DEVICE);
+
 	if (!nvmet_req_init(&cmd->req, &queue->nvme_cq,
 			&queue->nvme_sq, &nvmet_rdma_ops))
 		return;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvmem/core.c linux-libre-4.9.52-gnu/drivers/nvmem/core.c
--- linux-libre-4.9-gnu/drivers/nvmem/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvmem/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -488,21 +488,24 @@ struct nvmem_device *nvmem_register(cons
 
 	rval = device_add(&nvmem->dev);
 	if (rval)
-		goto out;
+		goto err_put_device;
 
 	if (config->compat) {
 		rval = nvmem_setup_compat(nvmem, config);
 		if (rval)
-			goto out;
+			goto err_device_del;
 	}
 
 	if (config->cells)
 		nvmem_add_cells(nvmem, config);
 
 	return nvmem;
-out:
-	ida_simple_remove(&nvmem_ida, nvmem->id);
-	kfree(nvmem);
+
+err_device_del:
+	device_del(&nvmem->dev);
+err_put_device:
+	put_device(&nvmem->dev);
+
 	return ERR_PTR(rval);
 }
 EXPORT_SYMBOL_GPL(nvmem_register);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/nvmem/imx-ocotp.c linux-libre-4.9.52-gnu/drivers/nvmem/imx-ocotp.c
--- linux-libre-4.9-gnu/drivers/nvmem/imx-ocotp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/nvmem/imx-ocotp.c	2017-09-27 08:40:05.000000000 -0400
@@ -71,7 +71,7 @@ static struct nvmem_config imx_ocotp_nvm
 
 static const struct of_device_id imx_ocotp_dt_ids[] = {
 	{ .compatible = "fsl,imx6q-ocotp",  (void *)128 },
-	{ .compatible = "fsl,imx6sl-ocotp", (void *)32 },
+	{ .compatible = "fsl,imx6sl-ocotp", (void *)64 },
 	{ .compatible = "fsl,imx6sx-ocotp", (void *)128 },
 	{ },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/of/address.c linux-libre-4.9.52-gnu/drivers/of/address.c
--- linux-libre-4.9-gnu/drivers/of/address.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/of/address.c	2017-09-27 08:40:05.000000000 -0400
@@ -263,7 +263,7 @@ struct of_pci_range *of_pci_range_parser
 	if (!parser->range || parser->range + parser->np > parser->end)
 		return NULL;
 
-	range->pci_space = parser->range[0];
+	range->pci_space = be32_to_cpup(parser->range);
 	range->flags = of_bus_pci_get_flags(parser->range);
 	range->pci_addr = of_read_number(parser->range + 1, ns);
 	range->cpu_addr = of_translate_address(parser->node,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/of/device.c linux-libre-4.9.52-gnu/drivers/of/device.c
--- linux-libre-4.9-gnu/drivers/of/device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/of/device.c	2017-09-27 08:40:05.000000000 -0400
@@ -225,6 +225,7 @@ ssize_t of_device_get_modalias(struct de
 
 	return tsize;
 }
+EXPORT_SYMBOL_GPL(of_device_get_modalias);
 
 /**
  * of_device_uevent - Display OF related uevent information
@@ -287,3 +288,4 @@ int of_device_uevent_modalias(struct dev
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(of_device_uevent_modalias);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/of/fdt.c linux-libre-4.9.52-gnu/drivers/of/fdt.c
--- linux-libre-4.9-gnu/drivers/of/fdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/of/fdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -505,6 +505,9 @@ static void *__unflatten_device_tree(con
 
 	/* Allocate memory for the expanded device tree */
 	mem = dt_alloc(size + 4, __alignof__(struct device_node));
+	if (!mem)
+		return NULL;
+
 	memset(mem, 0, size);
 
 	*(__be32 *)(mem + size) = cpu_to_be32(0xdeadbeef);
@@ -738,9 +741,12 @@ int __init of_scan_flat_dt(int (*it)(uns
 	const char *pathp;
 	int offset, rc = 0, depth = -1;
 
-        for (offset = fdt_next_node(blob, -1, &depth);
-             offset >= 0 && depth >= 0 && !rc;
-             offset = fdt_next_node(blob, offset, &depth)) {
+	if (!blob)
+		return 0;
+
+	for (offset = fdt_next_node(blob, -1, &depth);
+	     offset >= 0 && depth >= 0 && !rc;
+	     offset = fdt_next_node(blob, offset, &depth)) {
 
 		pathp = fdt_get_name(blob, offset, NULL);
 		if (*pathp == '/')
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/of/of_numa.c linux-libre-4.9.52-gnu/drivers/of/of_numa.c
--- linux-libre-4.9-gnu/drivers/of/of_numa.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/of/of_numa.c	2017-09-27 08:40:05.000000000 -0400
@@ -57,6 +57,8 @@ static void __init of_numa_parse_cpu_nod
 		else
 			node_set(nid, numa_nodes_parsed);
 	}
+
+	of_node_put(cpus);
 }
 
 static int __init of_numa_parse_memory_nodes(void)
@@ -176,7 +178,12 @@ int of_node_to_nid(struct device_node *d
 			np->name);
 	of_node_put(np);
 
-	if (!r)
+	/*
+	 * If numa=off passed on command line, or with a defective
+	 * device tree, the nid may not be in the set of possible
+	 * nodes.  Check for this case and return NUMA_NO_NODE.
+	 */
+	if (!r && nid < MAX_NUMNODES && node_possible(nid))
 		return nid;
 
 	return NUMA_NO_NODE;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/parisc/ccio-dma.c linux-libre-4.9.52-gnu/drivers/parisc/ccio-dma.c
--- linux-libre-4.9-gnu/drivers/parisc/ccio-dma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/parisc/ccio-dma.c	2017-09-27 08:40:05.000000000 -0400
@@ -741,6 +741,8 @@ ccio_map_single(struct device *dev, void
 
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return DMA_ERROR_CODE;
 
 	BUG_ON(size <= 0);
 
@@ -814,6 +816,10 @@ ccio_unmap_page(struct device *dev, dma_
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 	DBG_RUN("%s() iovp 0x%lx/%x\n",
 		__func__, (long)iova, size);
@@ -918,6 +924,8 @@ ccio_map_sg(struct device *dev, struct s
 	
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 	
 	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
@@ -990,6 +998,10 @@ ccio_unmap_sg(struct device *dev, struct
 
 	BUG_ON(!dev);
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 	DBG_RUN_SG("%s() START %d entries, %p,%x\n",
 		__func__, nents, sg_virt(sglist), sglist->length);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/parisc/dino.c linux-libre-4.9.52-gnu/drivers/parisc/dino.c
--- linux-libre-4.9-gnu/drivers/parisc/dino.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/parisc/dino.c	2017-09-27 08:40:05.000000000 -0400
@@ -154,7 +154,10 @@ struct dino_device
 };
 
 /* Looks nice and keeps the compiler happy */
-#define DINO_DEV(d) ((struct dino_device *) d)
+#define DINO_DEV(d) ({				\
+	void *__pdata = d;			\
+	BUG_ON(!__pdata);			\
+	(struct dino_device *)__pdata; })
 
 
 /*
@@ -953,7 +956,7 @@ static int __init dino_probe(struct pari
 
 	dino_dev->hba.dev = dev;
 	dino_dev->hba.base_addr = ioremap_nocache(hpa, 4096);
-	dino_dev->hba.lmmio_space_offset = 0;	/* CPU addrs == bus addrs */
+	dino_dev->hba.lmmio_space_offset = PCI_F_EXTEND;
 	spin_lock_init(&dino_dev->dinosaur_pen);
 	dino_dev->hba.iommu = ccio_get_iommu(dev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/parisc/lba_pci.c linux-libre-4.9.52-gnu/drivers/parisc/lba_pci.c
--- linux-libre-4.9-gnu/drivers/parisc/lba_pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/parisc/lba_pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -111,8 +111,10 @@ static u32 lba_t32;
 
 
 /* Looks nice and keeps the compiler happy */
-#define LBA_DEV(d) ((struct lba_device *) (d))
-
+#define LBA_DEV(d) ({				\
+	void *__pdata = d;			\
+	BUG_ON(!__pdata);			\
+	(struct lba_device *)__pdata; })
 
 /*
 ** Only allow 8 subsidiary busses per LBA
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/parisc/sba_iommu.c linux-libre-4.9.52-gnu/drivers/parisc/sba_iommu.c
--- linux-libre-4.9-gnu/drivers/parisc/sba_iommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/parisc/sba_iommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -691,6 +691,8 @@ static int sba_dma_supported( struct dev
 		return 0;
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 
 	/*
 	 * check if mask is >= than the current max IO Virt Address
@@ -722,6 +724,8 @@ sba_map_single(struct device *dev, void
 	int pide;
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return DMA_ERROR_CODE;
 
 	/* save offset bits */
 	offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK;
@@ -813,6 +817,10 @@ sba_unmap_page(struct device *dev, dma_a
 	DBG_RUN("%s() iovp 0x%lx/%x\n", __func__, (long) iova, size);
 
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 	offset = iova & ~IOVP_MASK;
 	iova ^= offset;        /* clear offset bits */
 	size += offset;
@@ -952,6 +960,8 @@ sba_map_sg(struct device *dev, struct sc
 	DBG_RUN_SG("%s() START %d entries\n", __func__, nents);
 
 	ioc = GET_IOC(dev);
+	if (!ioc)
+		return 0;
 
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
@@ -1037,6 +1047,10 @@ sba_unmap_sg(struct device *dev, struct
 		__func__, nents, sg_virt(sglist), sglist->length);
 
 	ioc = GET_IOC(dev);
+	if (!ioc) {
+		WARN_ON(!ioc);
+		return;
+	}
 
 #ifdef SBA_COLLECT_STATS
 	ioc->usg_calls++;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/parport/parport_gsc.c linux-libre-4.9.52-gnu/drivers/parport/parport_gsc.c
--- linux-libre-4.9-gnu/drivers/parport/parport_gsc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/parport/parport_gsc.c	2017-09-27 08:40:05.000000000 -0400
@@ -293,7 +293,7 @@ struct parport *parport_gsc_probe_port(u
 		p->irq = PARPORT_IRQ_NONE;
 	}
 	if (p->irq != PARPORT_IRQ_NONE) {
-		printk(", irq %d", p->irq);
+		pr_cont(", irq %d", p->irq);
 
 		if (p->dma == PARPORT_DMA_AUTO) {
 			p->dma = PARPORT_DMA_NONE;
@@ -303,8 +303,8 @@ struct parport *parport_gsc_probe_port(u
                                            is mandatory (see above) */
 		p->dma = PARPORT_DMA_NONE;
 
-	printk(" [");
-#define printmode(x) {if(p->modes&PARPORT_MODE_##x){printk("%s%s",f?",":"",#x);f++;}}
+	pr_cont(" [");
+#define printmode(x) {if(p->modes&PARPORT_MODE_##x){pr_cont("%s%s",f?",":"",#x);f++;}}
 	{
 		int f = 0;
 		printmode(PCSPP);
@@ -315,7 +315,7 @@ struct parport *parport_gsc_probe_port(u
 //		printmode(DMA);
 	}
 #undef printmode
-	printk("]\n");
+	pr_cont("]\n");
 
 	if (p->irq != PARPORT_IRQ_NONE) {
 		if (request_irq (p->irq, parport_irq_handler,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/parport/share.c linux-libre-4.9.52-gnu/drivers/parport/share.c
--- linux-libre-4.9-gnu/drivers/parport/share.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/parport/share.c	2017-09-27 08:40:05.000000000 -0400
@@ -939,8 +939,10 @@ parport_register_dev_model(struct parpor
 	 * pardevice fields. -arca
 	 */
 	port->ops->init_state(par_dev, par_dev->state);
-	port->proc_device = par_dev;
-	parport_device_proc_register(par_dev);
+	if (!test_and_set_bit(PARPORT_DEVPROC_REGISTERED, &port->devflags)) {
+		port->proc_device = par_dev;
+		parport_device_proc_register(par_dev);
+	}
 
 	return par_dev;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pcie-altera.c linux-libre-4.9.52-gnu/drivers/pci/host/pcie-altera.c
--- linux-libre-4.9-gnu/drivers/pci/host/pcie-altera.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pcie-altera.c	2017-09-27 08:40:05.000000000 -0400
@@ -57,10 +57,14 @@
 #define TLP_WRITE_TAG			0x10
 #define RP_DEVFN			0
 #define TLP_REQ_ID(bus, devfn)		(((bus) << 8) | (devfn))
-#define TLP_CFG_DW0(pcie, bus)						\
+#define TLP_CFGRD_DW0(pcie, bus)					\
     ((((bus == pcie->root_bus_nr) ? TLP_FMTTYPE_CFGRD0			\
 				    : TLP_FMTTYPE_CFGRD1) << 24) |	\
      TLP_PAYLOAD_SIZE)
+#define TLP_CFGWR_DW0(pcie, bus)					\
+    ((((bus == pcie->root_bus_nr) ? TLP_FMTTYPE_CFGWR0			\
+				    : TLP_FMTTYPE_CFGWR1) << 24) |	\
+     TLP_PAYLOAD_SIZE)
 #define TLP_CFG_DW1(pcie, tag, be)	\
     (((TLP_REQ_ID(pcie->root_bus_nr,  RP_DEVFN)) << 16) | (tag << 8) | (be))
 #define TLP_CFG_DW2(bus, devfn, offset)	\
@@ -222,7 +226,7 @@ static int tlp_cfg_dword_read(struct alt
 {
 	u32 headers[TLP_HDR_SIZE];
 
-	headers[0] = TLP_CFG_DW0(pcie, bus);
+	headers[0] = TLP_CFGRD_DW0(pcie, bus);
 	headers[1] = TLP_CFG_DW1(pcie, TLP_READ_TAG, byte_en);
 	headers[2] = TLP_CFG_DW2(bus, devfn, where);
 
@@ -237,7 +241,7 @@ static int tlp_cfg_dword_write(struct al
 	u32 headers[TLP_HDR_SIZE];
 	int ret;
 
-	headers[0] = TLP_CFG_DW0(pcie, bus);
+	headers[0] = TLP_CFGWR_DW0(pcie, bus);
 	headers[1] = TLP_CFG_DW1(pcie, TLP_WRITE_TAG, byte_en);
 	headers[2] = TLP_CFG_DW2(bus, devfn, where);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pcie-designware.c linux-libre-4.9.52-gnu/drivers/pci/host/pcie-designware.c
--- linux-libre-4.9-gnu/drivers/pci/host/pcie-designware.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pcie-designware.c	2017-09-27 08:40:05.000000000 -0400
@@ -807,11 +807,6 @@ void dw_pcie_setup_rc(struct pcie_port *
 {
 	u32 val;
 
-	/* get iATU unroll support */
-	pp->iatu_unroll_enabled = dw_pcie_iatu_unroll_enabled(pp);
-	dev_dbg(pp->dev, "iATU unroll: %s\n",
-		pp->iatu_unroll_enabled ? "enabled" : "disabled");
-
 	/* set the number of lanes */
 	val = dw_pcie_readl_rc(pp, PCIE_PORT_LINK_CONTROL);
 	val &= ~PORT_LINK_MODE_MASK;
@@ -882,6 +877,11 @@ void dw_pcie_setup_rc(struct pcie_port *
 	 * we should not program the ATU here.
 	 */
 	if (!pp->ops->rd_other_conf) {
+		/* get iATU unroll support */
+		pp->iatu_unroll_enabled = dw_pcie_iatu_unroll_enabled(pp);
+		dev_dbg(pp->dev, "iATU unroll: %s\n",
+			pp->iatu_unroll_enabled ? "enabled" : "disabled");
+
 		dw_pcie_prog_outbound_atu(pp, PCIE_ATU_REGION_INDEX0,
 					  PCIE_ATU_TYPE_MEM, pp->mem_base,
 					  pp->mem_bus_addr, pp->mem_size);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pcie-iproc-bcma.c linux-libre-4.9.52-gnu/drivers/pci/host/pcie-iproc-bcma.c
--- linux-libre-4.9-gnu/drivers/pci/host/pcie-iproc-bcma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pcie-iproc-bcma.c	2017-09-27 08:40:05.000000000 -0400
@@ -44,8 +44,7 @@ static int iproc_pcie_bcma_probe(struct
 {
 	struct device *dev = &bdev->dev;
 	struct iproc_pcie *pcie;
-	LIST_HEAD(res);
-	struct resource res_mem;
+	LIST_HEAD(resources);
 	int ret;
 
 	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
@@ -62,22 +61,23 @@ static int iproc_pcie_bcma_probe(struct
 
 	pcie->base_addr = bdev->addr;
 
-	res_mem.start = bdev->addr_s[0];
-	res_mem.end = bdev->addr_s[0] + SZ_128M - 1;
-	res_mem.name = "PCIe MEM space";
-	res_mem.flags = IORESOURCE_MEM;
-	pci_add_resource(&res, &res_mem);
+	pcie->mem.start = bdev->addr_s[0];
+	pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1;
+	pcie->mem.name = "PCIe MEM space";
+	pcie->mem.flags = IORESOURCE_MEM;
+	pci_add_resource(&resources, &pcie->mem);
 
 	pcie->map_irq = iproc_pcie_bcma_map_irq;
 
-	ret = iproc_pcie_setup(pcie, &res);
-	if (ret)
+	ret = iproc_pcie_setup(pcie, &resources);
+	if (ret) {
 		dev_err(dev, "PCIe controller setup failed\n");
-
-	pci_free_resource_list(&res);
+		pci_free_resource_list(&resources);
+		return ret;
+	}
 
 	bcma_set_drvdata(bdev, pcie);
-	return ret;
+	return 0;
 }
 
 static void iproc_pcie_bcma_remove(struct bcma_device *bdev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pcie-iproc.h linux-libre-4.9.52-gnu/drivers/pci/host/pcie-iproc.h
--- linux-libre-4.9-gnu/drivers/pci/host/pcie-iproc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pcie-iproc.h	2017-09-27 08:40:05.000000000 -0400
@@ -68,6 +68,7 @@ struct iproc_pcie {
 #ifdef CONFIG_ARM
 	struct pci_sys_data sysdata;
 #endif
+	struct resource mem;
 	struct pci_bus *root_bus;
 	struct phy *phy;
 	int (*map_irq)(const struct pci_dev *, u8, u8);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pcie-iproc-platform.c linux-libre-4.9.52-gnu/drivers/pci/host/pcie-iproc-platform.c
--- linux-libre-4.9-gnu/drivers/pci/host/pcie-iproc-platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pcie-iproc-platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -46,7 +46,7 @@ static int iproc_pcie_pltfm_probe(struct
 	struct device_node *np = dev->of_node;
 	struct resource reg;
 	resource_size_t iobase = 0;
-	LIST_HEAD(res);
+	LIST_HEAD(resources);
 	int ret;
 
 	of_id = of_match_device(iproc_pcie_of_match_table, dev);
@@ -108,23 +108,24 @@ static int iproc_pcie_pltfm_probe(struct
 		pcie->phy = NULL;
 	}
 
-	ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &iobase);
+	ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &resources,
+					       &iobase);
 	if (ret) {
-		dev_err(dev,
-			"unable to get PCI host bridge resources\n");
+		dev_err(dev, "unable to get PCI host bridge resources\n");
 		return ret;
 	}
 
 	pcie->map_irq = of_irq_parse_and_map_pci;
 
-	ret = iproc_pcie_setup(pcie, &res);
-	if (ret)
+	ret = iproc_pcie_setup(pcie, &resources);
+	if (ret) {
 		dev_err(dev, "PCIe controller setup failed\n");
-
-	pci_free_resource_list(&res);
+		pci_free_resource_list(&resources);
+		return ret;
+	}
 
 	platform_set_drvdata(pdev, pcie);
-	return ret;
+	return 0;
 }
 
 static int iproc_pcie_pltfm_remove(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pcie-rockchip.c linux-libre-4.9.52-gnu/drivers/pci/host/pcie-rockchip.c
--- linux-libre-4.9-gnu/drivers/pci/host/pcie-rockchip.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pcie-rockchip.c	2017-09-27 08:40:05.000000000 -0400
@@ -131,6 +131,7 @@
 		 PCIE_CORE_INT_CT | PCIE_CORE_INT_UTC | \
 		 PCIE_CORE_INT_MMVC)
 
+#define PCIE_RC_CONFIG_NORMAL_BASE	0x800000
 #define PCIE_RC_CONFIG_BASE		0xa00000
 #define PCIE_RC_CONFIG_VENDOR		(PCIE_RC_CONFIG_BASE + 0x00)
 #define PCIE_RC_CONFIG_RID_CCR		(PCIE_RC_CONFIG_BASE + 0x08)
@@ -267,7 +268,9 @@ static int rockchip_pcie_valid_device(st
 static int rockchip_pcie_rd_own_conf(struct rockchip_pcie *rockchip,
 				     int where, int size, u32 *val)
 {
-	void __iomem *addr = rockchip->apb_base + PCIE_RC_CONFIG_BASE + where;
+	void __iomem *addr;
+
+	addr = rockchip->apb_base + PCIE_RC_CONFIG_NORMAL_BASE + where;
 
 	if (!IS_ALIGNED((uintptr_t)addr, size)) {
 		*val = 0;
@@ -291,11 +294,13 @@ static int rockchip_pcie_wr_own_conf(str
 				     int where, int size, u32 val)
 {
 	u32 mask, tmp, offset;
+	void __iomem *addr;
 
 	offset = where & ~0x3;
+	addr = rockchip->apb_base + PCIE_RC_CONFIG_NORMAL_BASE + offset;
 
 	if (size == 4) {
-		writel(val, rockchip->apb_base + PCIE_RC_CONFIG_BASE + offset);
+		writel(val, addr);
 		return PCIBIOS_SUCCESSFUL;
 	}
 
@@ -306,9 +311,9 @@ static int rockchip_pcie_wr_own_conf(str
 	 * corrupt RW1C bits in adjacent registers.  But the hardware
 	 * doesn't support smaller writes.
 	 */
-	tmp = readl(rockchip->apb_base + PCIE_RC_CONFIG_BASE + offset) & mask;
+	tmp = readl(addr) & mask;
 	tmp |= val << ((where & 0x3) * 8);
-	writel(tmp, rockchip->apb_base + PCIE_RC_CONFIG_BASE + offset);
+	writel(tmp, addr);
 
 	return PCIBIOS_SUCCESSFUL;
 }
@@ -533,7 +538,7 @@ static int rockchip_pcie_init_port(struc
 
 	/* Fix the transmitted FTS count desired to exit from L0s. */
 	status = rockchip_pcie_read(rockchip, PCIE_CORE_CTRL_PLC1);
-	status = (status & PCIE_CORE_CTRL_PLC1_FTS_MASK) |
+	status = (status & ~PCIE_CORE_CTRL_PLC1_FTS_MASK) |
 		 (PCIE_CORE_CTRL_PLC1_FTS_CNT << PCIE_CORE_CTRL_PLC1_FTS_SHIFT);
 	rockchip_pcie_write(rockchip, status, PCIE_CORE_CTRL_PLC1);
 
@@ -590,8 +595,8 @@ static int rockchip_pcie_init_port(struc
 
 	/* Check the final link width from negotiated lane counter from MGMT */
 	status = rockchip_pcie_read(rockchip, PCIE_CORE_CTRL);
-	status =  0x1 << ((status & PCIE_CORE_PL_CONF_LANE_MASK) >>
-			  PCIE_CORE_PL_CONF_LANE_MASK);
+	status = 0x1 << ((status & PCIE_CORE_PL_CONF_LANE_MASK) >>
+			  PCIE_CORE_PL_CONF_LANE_SHIFT);
 	dev_dbg(dev, "current link width is x%d\n", status);
 
 	rockchip_pcie_write(rockchip, ROCKCHIP_VENDOR_ID,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pci-hyperv.c linux-libre-4.9.52-gnu/drivers/pci/host/pci-hyperv.c
--- linux-libre-4.9-gnu/drivers/pci/host/pci-hyperv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pci-hyperv.c	2017-09-27 08:40:05.000000000 -0400
@@ -72,6 +72,7 @@ enum {
 	PCI_PROTOCOL_VERSION_CURRENT = PCI_PROTOCOL_VERSION_1_1
 };
 
+#define CPU_AFFINITY_ALL	-1ULL
 #define PCI_CONFIG_MMIO_LENGTH	0x2000
 #define CFG_PAGE_OFFSET 0x1000
 #define CFG_PAGE_SIZE (PCI_CONFIG_MMIO_LENGTH - CFG_PAGE_OFFSET)
@@ -130,7 +131,8 @@ union pci_version {
  */
 union win_slot_encoding {
 	struct {
-		u32	func:8;
+		u32	dev:5;
+		u32	func:3;
 		u32	reserved:24;
 	} bits;
 	u32 slot;
@@ -483,7 +485,8 @@ static u32 devfn_to_wslot(int devfn)
 	union win_slot_encoding wslot;
 
 	wslot.slot = 0;
-	wslot.bits.func = PCI_SLOT(devfn) | (PCI_FUNC(devfn) << 5);
+	wslot.bits.dev = PCI_SLOT(devfn);
+	wslot.bits.func = PCI_FUNC(devfn);
 
 	return wslot.slot;
 }
@@ -501,7 +504,7 @@ static int wslot_to_devfn(u32 wslot)
 	union win_slot_encoding slot_no;
 
 	slot_no.slot = wslot;
-	return PCI_DEVFN(0, slot_no.bits.func);
+	return PCI_DEVFN(slot_no.bits.dev, slot_no.bits.func);
 }
 
 /*
@@ -866,7 +869,7 @@ static void hv_compose_msi_msg(struct ir
 		hv_int_desc_free(hpdev, int_desc);
 	}
 
-	int_desc = kzalloc(sizeof(*int_desc), GFP_KERNEL);
+	int_desc = kzalloc(sizeof(*int_desc), GFP_ATOMIC);
 	if (!int_desc)
 		goto drop_reference;
 
@@ -887,9 +890,13 @@ static void hv_compose_msi_msg(struct ir
 	 * processors because Hyper-V only supports 64 in a guest.
 	 */
 	affinity = irq_data_get_affinity_mask(data);
-	for_each_cpu_and(cpu, affinity, cpu_online_mask) {
-		int_pkt->int_desc.cpu_mask |=
-			(1ULL << vmbus_cpu_number_to_vp_number(cpu));
+	if (cpumask_weight(affinity) >= 32) {
+		int_pkt->int_desc.cpu_mask = CPU_AFFINITY_ALL;
+	} else {
+		for_each_cpu_and(cpu, affinity, cpu_online_mask) {
+			int_pkt->int_desc.cpu_mask |=
+				(1ULL << vmbus_cpu_number_to_vp_number(cpu));
+		}
 	}
 
 	ret = vmbus_sendpacket(hpdev->hbus->hdev->channel, int_pkt,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/host/pci-thunder-pem.c linux-libre-4.9.52-gnu/drivers/pci/host/pci-thunder-pem.c
--- linux-libre-4.9-gnu/drivers/pci/host/pci-thunder-pem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/host/pci-thunder-pem.c	2017-09-27 08:40:05.000000000 -0400
@@ -284,35 +284,16 @@ static int thunder_pem_config_write(stru
 	return pci_generic_config_write(bus, devfn, where, size, val);
 }
 
-static int thunder_pem_init(struct pci_config_window *cfg)
+static int thunder_pem_init(struct device *dev, struct pci_config_window *cfg,
+			    struct resource *res_pem)
 {
-	struct device *dev = cfg->parent;
-	resource_size_t bar4_start;
-	struct resource *res_pem;
 	struct thunder_pem_pci *pem_pci;
-	struct platform_device *pdev;
-
-	/* Only OF support for now */
-	if (!dev->of_node)
-		return -EINVAL;
+	resource_size_t bar4_start;
 
 	pem_pci = devm_kzalloc(dev, sizeof(*pem_pci), GFP_KERNEL);
 	if (!pem_pci)
 		return -ENOMEM;
 
-	pdev = to_platform_device(dev);
-
-	/*
-	 * The second register range is the PEM bridge to the PCIe
-	 * bus.  It has a different config access method than those
-	 * devices behind the bridge.
-	 */
-	res_pem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res_pem) {
-		dev_err(dev, "missing \"reg[1]\"property\n");
-		return -EINVAL;
-	}
-
 	pem_pci->pem_reg_base = devm_ioremap(dev, res_pem->start, 0x10000);
 	if (!pem_pci->pem_reg_base)
 		return -ENOMEM;
@@ -332,9 +313,32 @@ static int thunder_pem_init(struct pci_c
 	return 0;
 }
 
+static int thunder_pem_platform_init(struct pci_config_window *cfg)
+{
+	struct device *dev = cfg->parent;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct resource *res_pem;
+
+	if (!dev->of_node)
+		return -EINVAL;
+
+	/*
+	 * The second register range is the PEM bridge to the PCIe
+	 * bus.  It has a different config access method than those
+	 * devices behind the bridge.
+	 */
+	res_pem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!res_pem) {
+		dev_err(dev, "missing \"reg[1]\"property\n");
+		return -EINVAL;
+	}
+
+	return thunder_pem_init(dev, cfg, res_pem);
+}
+
 static struct pci_ecam_ops pci_thunder_pem_ops = {
 	.bus_shift	= 24,
-	.init		= thunder_pem_init,
+	.init		= thunder_pem_platform_init,
 	.pci_ops	= {
 		.map_bus	= pci_ecam_map_bus,
 		.read		= thunder_pem_config_read,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/hotplug/pciehp_hpc.c linux-libre-4.9.52-gnu/drivers/pci/hotplug/pciehp_hpc.c
--- linux-libre-4.9-gnu/drivers/pci/hotplug/pciehp_hpc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/hotplug/pciehp_hpc.c	2017-09-27 08:40:05.000000000 -0400
@@ -586,6 +586,14 @@ static irqreturn_t pciehp_isr(int irq, v
 	events = status & (PCI_EXP_SLTSTA_ABP | PCI_EXP_SLTSTA_PFD |
 			   PCI_EXP_SLTSTA_PDC | PCI_EXP_SLTSTA_CC |
 			   PCI_EXP_SLTSTA_DLLSC);
+
+	/*
+	 * If we've already reported a power fault, don't report it again
+	 * until we've done something to handle it.
+	 */
+	if (ctrl->power_fault_detected)
+		events &= ~PCI_EXP_SLTSTA_PFD;
+
 	if (!events)
 		return IRQ_NONE;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/hotplug/pnv_php.c linux-libre-4.9.52-gnu/drivers/pci/hotplug/pnv_php.c
--- linux-libre-4.9-gnu/drivers/pci/hotplug/pnv_php.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/hotplug/pnv_php.c	2017-09-27 08:40:05.000000000 -0400
@@ -35,9 +35,11 @@ static void pnv_php_register(struct devi
 static void pnv_php_unregister_one(struct device_node *dn);
 static void pnv_php_unregister(struct device_node *dn);
 
-static void pnv_php_disable_irq(struct pnv_php_slot *php_slot)
+static void pnv_php_disable_irq(struct pnv_php_slot *php_slot,
+				bool disable_device)
 {
 	struct pci_dev *pdev = php_slot->pdev;
+	int irq = php_slot->irq;
 	u16 ctrl;
 
 	if (php_slot->irq > 0) {
@@ -56,10 +58,14 @@ static void pnv_php_disable_irq(struct p
 		php_slot->wq = NULL;
 	}
 
-	if (pdev->msix_enabled)
-		pci_disable_msix(pdev);
-	else if (pdev->msi_enabled)
-		pci_disable_msi(pdev);
+	if (disable_device || irq > 0) {
+		if (pdev->msix_enabled)
+			pci_disable_msix(pdev);
+		else if (pdev->msi_enabled)
+			pci_disable_msi(pdev);
+
+		pci_disable_device(pdev);
+	}
 }
 
 static void pnv_php_free_slot(struct kref *kref)
@@ -68,7 +74,7 @@ static void pnv_php_free_slot(struct kre
 					struct pnv_php_slot, kref);
 
 	WARN_ON(!list_empty(&php_slot->children));
-	pnv_php_disable_irq(php_slot);
+	pnv_php_disable_irq(php_slot, false);
 	kfree(php_slot->name);
 	kfree(php_slot);
 }
@@ -76,7 +82,7 @@ static void pnv_php_free_slot(struct kre
 static inline void pnv_php_put_slot(struct pnv_php_slot *php_slot)
 {
 
-	if (WARN_ON(!php_slot))
+	if (!php_slot)
 		return;
 
 	kref_put(&php_slot->kref, pnv_php_free_slot);
@@ -430,9 +436,21 @@ static int pnv_php_enable(struct pnv_php
 	if (ret)
 		return ret;
 
-	/* Proceed if there have nothing behind the slot */
-	if (presence == OPAL_PCI_SLOT_EMPTY)
+	/*
+	 * Proceed if there have nothing behind the slot. However,
+	 * we should leave the slot in registered state at the
+	 * beginning. Otherwise, the PCI devices inserted afterwards
+	 * won't be probed and populated.
+	 */
+	if (presence == OPAL_PCI_SLOT_EMPTY) {
+		if (!php_slot->power_state_check) {
+			php_slot->power_state_check = true;
+
+			return 0;
+		}
+
 		goto scan;
+	}
 
 	/*
 	 * If the power supply to the slot is off, we can't detect
@@ -707,8 +725,12 @@ static irqreturn_t pnv_php_interrupt(int
 		added = !!(lsts & PCI_EXP_LNKSTA_DLLLA);
 	} else if (sts & PCI_EXP_SLTSTA_PDC) {
 		ret = pnv_pci_get_presence_state(php_slot->id, &presence);
-		if (!ret)
+		if (ret) {
+			dev_warn(&pdev->dev, "PCI slot [%s] error %d getting presence (0x%04x), to retry the operation.\n",
+				 php_slot->name, ret, sts);
 			return IRQ_HANDLED;
+		}
+
 		added = !!(presence == OPAL_PCI_SLOT_PRESENT);
 	} else {
 		return IRQ_NONE;
@@ -759,7 +781,7 @@ static void pnv_php_init_irq(struct pnv_
 	php_slot->wq = alloc_workqueue("pciehp-%s", 0, 0, php_slot->name);
 	if (!php_slot->wq) {
 		dev_warn(&pdev->dev, "Cannot alloc workqueue\n");
-		pnv_php_disable_irq(php_slot);
+		pnv_php_disable_irq(php_slot, true);
 		return;
 	}
 
@@ -772,7 +794,7 @@ static void pnv_php_init_irq(struct pnv_
 	ret = request_irq(irq, pnv_php_interrupt, IRQF_SHARED,
 			  php_slot->name, php_slot);
 	if (ret) {
-		pnv_php_disable_irq(php_slot);
+		pnv_php_disable_irq(php_slot, true);
 		dev_warn(&pdev->dev, "Error %d enabling IRQ %d\n", ret, irq);
 		return;
 	}
@@ -793,6 +815,14 @@ static void pnv_php_enable_irq(struct pn
 	struct pci_dev *pdev = php_slot->pdev;
 	int irq, ret;
 
+	/*
+	 * The MSI/MSIx interrupt might have been occupied by other
+	 * drivers. Don't populate the surprise hotplug capability
+	 * in that case.
+	 */
+	if (pci_dev_msi_enabled(pdev))
+		return;
+
 	ret = pci_enable_device(pdev);
 	if (ret) {
 		dev_warn(&pdev->dev, "Error %d enabling device\n", ret);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/hotplug/rpadlpar_core.c linux-libre-4.9.52-gnu/drivers/pci/hotplug/rpadlpar_core.c
--- linux-libre-4.9-gnu/drivers/pci/hotplug/rpadlpar_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/hotplug/rpadlpar_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -257,8 +257,13 @@ static int dlpar_add_phb(char *drc_name,
 
 static int dlpar_add_vio_slot(char *drc_name, struct device_node *dn)
 {
-	if (vio_find_node(dn))
+	struct vio_dev *vio_dev;
+
+	vio_dev = vio_find_node(dn);
+	if (vio_dev) {
+		put_device(&vio_dev->dev);
 		return -EINVAL;
+	}
 
 	if (!vio_register_device_node(dn)) {
 		printk(KERN_ERR
@@ -334,6 +339,9 @@ static int dlpar_remove_vio_slot(char *d
 		return -EINVAL;
 
 	vio_unregister_device(vio_dev);
+
+	put_device(&vio_dev->dev);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/hotplug/shpchp_hpc.c linux-libre-4.9.52-gnu/drivers/pci/hotplug/shpchp_hpc.c
--- linux-libre-4.9-gnu/drivers/pci/hotplug/shpchp_hpc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/hotplug/shpchp_hpc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1062,6 +1062,8 @@ int shpc_init(struct controller *ctrl, s
 		if (rc) {
 			ctrl_info(ctrl, "Can't get msi for the hotplug controller\n");
 			ctrl_info(ctrl, "Use INTx for the hotplug controller\n");
+		} else {
+			pci_set_master(pdev);
 		}
 
 		rc = request_irq(ctrl->pci_dev->irq, shpc_isr, IRQF_SHARED,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/iov.c linux-libre-4.9.52-gnu/drivers/pci/iov.c
--- linux-libre-4.9-gnu/drivers/pci/iov.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/iov.c	2017-09-27 08:40:05.000000000 -0400
@@ -306,13 +306,6 @@ static int sriov_enable(struct pci_dev *
 			return rc;
 	}
 
-	pci_iov_set_numvfs(dev, nr_virtfn);
-	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;
-	pci_cfg_access_lock(dev);
-	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);
-	msleep(100);
-	pci_cfg_access_unlock(dev);
-
 	iov->initial_VFs = initial;
 	if (nr_virtfn < initial)
 		initial = nr_virtfn;
@@ -323,6 +316,13 @@ static int sriov_enable(struct pci_dev *
 		goto err_pcibios;
 	}
 
+	pci_iov_set_numvfs(dev, nr_virtfn);
+	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;
+	pci_cfg_access_lock(dev);
+	pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);
+	msleep(100);
+	pci_cfg_access_unlock(dev);
+
 	for (i = 0; i < initial; i++) {
 		rc = pci_iov_add_virtfn(dev, i, 0);
 		if (rc)
@@ -554,21 +554,61 @@ void pci_iov_release(struct pci_dev *dev
 }
 
 /**
- * pci_iov_resource_bar - get position of the SR-IOV BAR
+ * pci_iov_update_resource - update a VF BAR
  * @dev: the PCI device
  * @resno: the resource number
  *
- * Returns position of the BAR encapsulated in the SR-IOV capability.
+ * Update a VF BAR in the SR-IOV capability of a PF.
  */
-int pci_iov_resource_bar(struct pci_dev *dev, int resno)
+void pci_iov_update_resource(struct pci_dev *dev, int resno)
 {
-	if (resno < PCI_IOV_RESOURCES || resno > PCI_IOV_RESOURCE_END)
-		return 0;
+	struct pci_sriov *iov = dev->is_physfn ? dev->sriov : NULL;
+	struct resource *res = dev->resource + resno;
+	int vf_bar = resno - PCI_IOV_RESOURCES;
+	struct pci_bus_region region;
+	u16 cmd;
+	u32 new;
+	int reg;
 
-	BUG_ON(!dev->is_physfn);
+	/*
+	 * The generic pci_restore_bars() path calls this for all devices,
+	 * including VFs and non-SR-IOV devices.  If this is not a PF, we
+	 * have nothing to do.
+	 */
+	if (!iov)
+		return;
 
-	return dev->sriov->pos + PCI_SRIOV_BAR +
-		4 * (resno - PCI_IOV_RESOURCES);
+	pci_read_config_word(dev, iov->pos + PCI_SRIOV_CTRL, &cmd);
+	if ((cmd & PCI_SRIOV_CTRL_VFE) && (cmd & PCI_SRIOV_CTRL_MSE)) {
+		dev_WARN(&dev->dev, "can't update enabled VF BAR%d %pR\n",
+			 vf_bar, res);
+		return;
+	}
+
+	/*
+	 * Ignore unimplemented BARs, unused resource slots for 64-bit
+	 * BARs, and non-movable resources, e.g., those described via
+	 * Enhanced Allocation.
+	 */
+	if (!res->flags)
+		return;
+
+	if (res->flags & IORESOURCE_UNSET)
+		return;
+
+	if (res->flags & IORESOURCE_PCI_FIXED)
+		return;
+
+	pcibios_resource_to_bus(dev->bus, &region, res);
+	new = region.start;
+	new |= res->flags & ~PCI_BASE_ADDRESS_MEM_MASK;
+
+	reg = iov->pos + PCI_SRIOV_BAR + 4 * vf_bar;
+	pci_write_config_dword(dev, reg, new);
+	if (res->flags & IORESOURCE_MEM_64) {
+		new = region.start >> 16 >> 16;
+		pci_write_config_dword(dev, reg + 4, new);
+	}
 }
 
 resource_size_t __weak pcibios_iov_resource_alignment(struct pci_dev *dev,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/msi.c linux-libre-4.9.52-gnu/drivers/pci/msi.c
--- linux-libre-4.9-gnu/drivers/pci/msi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/msi.c	2017-09-27 08:40:05.000000000 -0400
@@ -1294,7 +1294,8 @@ const struct cpumask *pci_irq_get_affini
 	} else if (dev->msi_enabled) {
 		struct msi_desc *entry = first_pci_msi_entry(dev);
 
-		if (WARN_ON_ONCE(!entry || nr >= entry->nvec_used))
+		if (WARN_ON_ONCE(!entry || !entry->affinity ||
+				 nr >= entry->nvec_used))
 			return NULL;
 
 		return &entry->affinity[nr];
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/pci.c linux-libre-4.9.52-gnu/drivers/pci/pci.c
--- linux-libre-4.9-gnu/drivers/pci/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -564,10 +564,6 @@ static void pci_restore_bars(struct pci_
 {
 	int i;
 
-	/* Per SR-IOV spec 3.4.1.11, VF BARs are RO zero */
-	if (dev->is_virtfn)
-		return;
-
 	for (i = 0; i < PCI_BRIDGE_RESOURCES; i++)
 		pci_update_resource(dev, i);
 }
@@ -1786,8 +1782,8 @@ static void pci_pme_list_scan(struct wor
 		}
 	}
 	if (!list_empty(&pci_pme_list))
-		schedule_delayed_work(&pci_pme_work,
-				      msecs_to_jiffies(PME_TIMEOUT));
+		queue_delayed_work(system_freezable_wq, &pci_pme_work,
+				   msecs_to_jiffies(PME_TIMEOUT));
 	mutex_unlock(&pci_pme_list_mutex);
 }
 
@@ -1852,8 +1848,9 @@ void pci_pme_active(struct pci_dev *dev,
 			mutex_lock(&pci_pme_list_mutex);
 			list_add(&pme_dev->list, &pci_pme_list);
 			if (list_is_singular(&pci_pme_list))
-				schedule_delayed_work(&pci_pme_work,
-						      msecs_to_jiffies(PME_TIMEOUT));
+				queue_delayed_work(system_freezable_wq,
+						   &pci_pme_work,
+						   msecs_to_jiffies(PME_TIMEOUT));
 			mutex_unlock(&pci_pme_list_mutex);
 		} else {
 			mutex_lock(&pci_pme_list_mutex);
@@ -2106,6 +2103,10 @@ bool pci_dev_run_wake(struct pci_dev *de
 	if (!dev->pme_support)
 		return false;
 
+	/* PME-capable in principle, but not from the intended sleep state */
+	if (!pci_pme_capable(dev, pci_target_state(dev)))
+		return false;
+
 	while (bus->parent) {
 		struct pci_dev *bridge = bus->self;
 
@@ -2141,7 +2142,8 @@ bool pci_dev_keep_suspended(struct pci_d
 
 	if (!pm_runtime_suspended(dev)
 	    || pci_target_state(pci_dev) != pci_dev->current_state
-	    || platform_pci_need_resume(pci_dev))
+	    || platform_pci_need_resume(pci_dev)
+	    || (pci_dev->dev_flags & PCI_DEV_FLAGS_NEEDS_RESUME))
 		return false;
 
 	/*
@@ -4831,36 +4833,6 @@ int pci_select_bars(struct pci_dev *dev,
 }
 EXPORT_SYMBOL(pci_select_bars);
 
-/**
- * pci_resource_bar - get position of the BAR associated with a resource
- * @dev: the PCI device
- * @resno: the resource number
- * @type: the BAR type to be filled in
- *
- * Returns BAR position in config space, or 0 if the BAR is invalid.
- */
-int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type)
-{
-	int reg;
-
-	if (resno < PCI_ROM_RESOURCE) {
-		*type = pci_bar_unknown;
-		return PCI_BASE_ADDRESS_0 + 4 * resno;
-	} else if (resno == PCI_ROM_RESOURCE) {
-		*type = pci_bar_mem32;
-		return dev->rom_base_reg;
-	} else if (resno < PCI_BRIDGE_RESOURCES) {
-		/* device specific resource */
-		*type = pci_bar_unknown;
-		reg = pci_iov_resource_bar(dev, resno);
-		if (reg)
-			return reg;
-	}
-
-	dev_err(&dev->dev, "BAR %d: invalid resource\n", resno);
-	return 0;
-}
-
 /* Some architectures require additional programming to enable VGA */
 static arch_set_vga_state_t arch_set_vga_state;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/pci-driver.c linux-libre-4.9.52-gnu/drivers/pci/pci-driver.c
--- linux-libre-4.9-gnu/drivers/pci/pci-driver.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/pci-driver.c	2017-09-27 08:40:05.000000000 -0400
@@ -954,6 +954,7 @@ static int pci_pm_thaw_noirq(struct devi
 		return pci_legacy_resume_early(dev);
 
 	pci_update_current_state(pci_dev, PCI_D0);
+	pci_restore_state(pci_dev);
 
 	if (drv && drv->pm && drv->pm->thaw_noirq)
 		error = drv->pm->thaw_noirq(dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/pcie/aspm.c linux-libre-4.9.52-gnu/drivers/pci/pcie/aspm.c
--- linux-libre-4.9-gnu/drivers/pci/pcie/aspm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/pcie/aspm.c	2017-09-27 08:40:05.000000000 -0400
@@ -518,25 +518,32 @@ static struct pcie_link_state *alloc_pci
 	link = kzalloc(sizeof(*link), GFP_KERNEL);
 	if (!link)
 		return NULL;
+
 	INIT_LIST_HEAD(&link->sibling);
 	INIT_LIST_HEAD(&link->children);
 	INIT_LIST_HEAD(&link->link);
 	link->pdev = pdev;
-	if (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT) {
+
+	/*
+	 * Root Ports and PCI/PCI-X to PCIe Bridges are roots of PCIe
+	 * hierarchies.
+	 */
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ROOT_PORT ||
+	    pci_pcie_type(pdev) == PCI_EXP_TYPE_PCIE_BRIDGE) {
+		link->root = link;
+	} else {
 		struct pcie_link_state *parent;
+
 		parent = pdev->bus->parent->self->link_state;
 		if (!parent) {
 			kfree(link);
 			return NULL;
 		}
+
 		link->parent = parent;
+		link->root = link->parent->root;
 		list_add(&link->link, &parent->children);
 	}
-	/* Setup a pointer to the root port link */
-	if (!link->parent)
-		link->root = link;
-	else
-		link->root = link->parent->root;
 
 	list_add(&link->sibling, &link_list);
 	pdev->link_state = link;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/pcie/pme.c linux-libre-4.9.52-gnu/drivers/pci/pcie/pme.c
--- linux-libre-4.9-gnu/drivers/pci/pcie/pme.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/pcie/pme.c	2017-09-27 08:40:05.000000000 -0400
@@ -448,6 +448,17 @@ static int pcie_pme_resume(struct pcie_d
 	return 0;
 }
 
+/**
+ * pcie_pme_remove - Prepare PCIe PME service device for removal.
+ * @srv - PCIe service device to remove.
+ */
+static void pcie_pme_remove(struct pcie_device *srv)
+{
+	pcie_pme_suspend(srv);
+	free_irq(srv->irq, srv);
+	kfree(get_service_data(srv));
+}
+
 static struct pcie_port_service_driver pcie_pme_driver = {
 	.name		= "pcie_pme",
 	.port_type	= PCI_EXP_TYPE_ROOT_PORT,
@@ -456,6 +467,7 @@ static struct pcie_port_service_driver p
 	.probe		= pcie_pme_probe,
 	.suspend	= pcie_pme_suspend,
 	.resume		= pcie_pme_resume,
+	.remove		= pcie_pme_remove,
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/pci.h linux-libre-4.9.52-gnu/drivers/pci/pci.h
--- linux-libre-4.9-gnu/drivers/pci/pci.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/pci.h	2017-09-27 08:40:05.000000000 -0400
@@ -245,7 +245,6 @@ bool pci_bus_read_dev_vendor_id(struct p
 int pci_setup_device(struct pci_dev *dev);
 int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		    struct resource *res, unsigned int reg);
-int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type);
 void pci_configure_ari(struct pci_dev *dev);
 void __pci_bus_size_bridges(struct pci_bus *bus,
 			struct list_head *realloc_head);
@@ -289,7 +288,7 @@ static inline void pci_restore_ats_state
 #ifdef CONFIG_PCI_IOV
 int pci_iov_init(struct pci_dev *dev);
 void pci_iov_release(struct pci_dev *dev);
-int pci_iov_resource_bar(struct pci_dev *dev, int resno);
+void pci_iov_update_resource(struct pci_dev *dev, int resno);
 resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
 void pci_restore_iov_state(struct pci_dev *dev);
 int pci_iov_bus_range(struct pci_bus *bus);
@@ -303,10 +302,6 @@ static inline void pci_iov_release(struc
 
 {
 }
-static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno)
-{
-	return 0;
-}
 static inline void pci_restore_iov_state(struct pci_dev *dev)
 {
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/pci-sysfs.c linux-libre-4.9.52-gnu/drivers/pci/pci-sysfs.c
--- linux-libre-4.9-gnu/drivers/pci/pci-sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/pci-sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -974,15 +974,19 @@ void pci_remove_legacy_files(struct pci_
 int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct *vma,
 		  enum pci_mmap_api mmap_api)
 {
-	unsigned long nr, start, size, pci_start;
+	unsigned long nr, start, size;
+	resource_size_t pci_start = 0, pci_end;
 
 	if (pci_resource_len(pdev, resno) == 0)
 		return 0;
 	nr = vma_pages(vma);
 	start = vma->vm_pgoff;
 	size = ((pci_resource_len(pdev, resno) - 1) >> PAGE_SHIFT) + 1;
-	pci_start = (mmap_api == PCI_MMAP_PROCFS) ?
-			pci_resource_start(pdev, resno) >> PAGE_SHIFT : 0;
+	if (mmap_api == PCI_MMAP_PROCFS) {
+		pci_resource_to_user(pdev, resno, &pdev->resource[resno],
+				     &pci_start, &pci_end);
+		pci_start >>= PAGE_SHIFT;
+	}
 	if (start >= pci_start && start < pci_start + size &&
 			start + nr <= pci_start + size)
 		return 1;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/probe.c linux-libre-4.9.52-gnu/drivers/pci/probe.c
--- linux-libre-4.9-gnu/drivers/pci/probe.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/probe.c	2017-09-27 08:40:05.000000000 -0400
@@ -227,7 +227,8 @@ int __pci_read_base(struct pci_dev *dev,
 			mask64 = (u32)PCI_BASE_ADDRESS_MEM_MASK;
 		}
 	} else {
-		res->flags |= (l & IORESOURCE_ROM_ENABLE);
+		if (l & PCI_ROM_ADDRESS_ENABLE)
+			res->flags |= IORESOURCE_ROM_ENABLE;
 		l64 = l & PCI_ROM_ADDRESS_MASK;
 		sz64 = sz & PCI_ROM_ADDRESS_MASK;
 		mask64 = (u32)PCI_ROM_ADDRESS_MASK;
@@ -1050,6 +1051,7 @@ void set_pcie_port_type(struct pci_dev *
 	pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
 	if (!pos)
 		return;
+
 	pdev->pcie_cap = pos;
 	pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
 	pdev->pcie_flags_reg = reg16;
@@ -1057,13 +1059,14 @@ void set_pcie_port_type(struct pci_dev *
 	pdev->pcie_mpss = reg16 & PCI_EXP_DEVCAP_PAYLOAD;
 
 	/*
-	 * A Root Port is always the upstream end of a Link.  No PCIe
-	 * component has two Links.  Two Links are connected by a Switch
-	 * that has a Port on each Link and internal logic to connect the
-	 * two Ports.
+	 * A Root Port or a PCI-to-PCIe bridge is always the upstream end
+	 * of a Link.  No PCIe component has two Links.  Two Links are
+	 * connected by a Switch that has a Port on each Link and internal
+	 * logic to connect the two Ports.
 	 */
 	type = pci_pcie_type(pdev);
-	if (type == PCI_EXP_TYPE_ROOT_PORT)
+	if (type == PCI_EXP_TYPE_ROOT_PORT ||
+	    type == PCI_EXP_TYPE_PCIE_BRIDGE)
 		pdev->has_secondary_link = 1;
 	else if (type == PCI_EXP_TYPE_UPSTREAM ||
 		 type == PCI_EXP_TYPE_DOWNSTREAM) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/proc.c linux-libre-4.9.52-gnu/drivers/pci/proc.c
--- linux-libre-4.9-gnu/drivers/pci/proc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/proc.c	2017-09-27 08:40:05.000000000 -0400
@@ -231,24 +231,33 @@ static int proc_bus_pci_mmap(struct file
 {
 	struct pci_dev *dev = PDE_DATA(file_inode(file));
 	struct pci_filp_private *fpriv = file->private_data;
-	int i, ret, write_combine;
+	int i, ret, write_combine = 0, res_bit;
 
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
 
+	if (fpriv->mmap_state == pci_mmap_io)
+		res_bit = IORESOURCE_IO;
+	else
+		res_bit = IORESOURCE_MEM;
+
 	/* Make sure the caller is mapping a real resource for this device */
 	for (i = 0; i < PCI_ROM_RESOURCE; i++) {
-		if (pci_mmap_fits(dev, i, vma,  PCI_MMAP_PROCFS))
+		if (dev->resource[i].flags & res_bit &&
+		    pci_mmap_fits(dev, i, vma,  PCI_MMAP_PROCFS))
 			break;
 	}
 
 	if (i >= PCI_ROM_RESOURCE)
 		return -ENODEV;
 
-	if (fpriv->mmap_state == pci_mmap_mem)
-		write_combine = fpriv->write_combine;
-	else
-		write_combine = 0;
+	if (fpriv->mmap_state == pci_mmap_mem &&
+	    fpriv->write_combine) {
+		if (dev->resource[i].flags & IORESOURCE_PREFETCH)
+			write_combine = 1;
+		else
+			return -EINVAL;
+	}
 	ret = pci_mmap_page_range(dev, vma,
 				  fpriv->mmap_state, write_combine);
 	if (ret < 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/quirks.c linux-libre-4.9.52-gnu/drivers/pci/quirks.c
--- linux-libre-4.9-gnu/drivers/pci/quirks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/quirks.c	2017-09-27 08:40:05.000000000 -0400
@@ -1634,6 +1634,7 @@ static void quirk_pcie_mch(struct pci_de
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_E7520_MCH,	quirk_pcie_mch);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_E7320_MCH,	quirk_pcie_mch);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_E7525_MCH,	quirk_pcie_mch);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI,	0x1610,	quirk_pcie_mch);
 
 
 /*
@@ -2156,7 +2157,7 @@ static void quirk_blacklist_vpd(struct p
 {
 	if (dev->vpd) {
 		dev->vpd->len = 0;
-		dev_warn(&dev->dev, FW_BUG "VPD access disabled\n");
+		dev_warn(&dev->dev, FW_BUG "disabling VPD access (can't determine size of non-standard VPD format)\n");
 	}
 }
 
@@ -2173,6 +2174,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LS
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LSI_LOGIC, 0x005f, quirk_blacklist_vpd);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, PCI_ANY_ID,
 		quirk_blacklist_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_QLOGIC, 0x2261, quirk_blacklist_vpd);
 
 /*
  * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the
@@ -2239,6 +2241,27 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_B
 			 PCI_DEVICE_ID_TIGON3_5719,
 			 quirk_brcm_5719_limit_mrrs);
 
+#ifdef CONFIG_PCIE_IPROC_PLATFORM
+static void quirk_paxc_bridge(struct pci_dev *pdev)
+{
+	/* The PCI config space is shared with the PAXC root port and the first
+	 * Ethernet device.  So, we need to workaround this by telling the PCI
+	 * code that the bridge is not an Ethernet device.
+	 */
+	if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE)
+		pdev->class = PCI_CLASS_BRIDGE_PCI << 8;
+
+	/* MPSS is not being set properly (as it is currently 0).  This is
+	 * because that area of the PCI config space is hard coded to zero, and
+	 * is not modifiable by firmware.  Set this to 2 (e.g., 512 byte MPS)
+	 * so that the MPS can be set to the real max value.
+	 */
+	pdev->pcie_mpss = 2;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16cd, quirk_paxc_bridge);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x16f0, quirk_paxc_bridge);
+#endif
+
 /* Originally in EDAC sources for i82875P:
  * Intel tells BIOS developers to hide device 6 which
  * configures the overflow device access containing
@@ -3113,32 +3136,35 @@ static void quirk_remove_d3_delay(struct
 {
 	dev->d3_delay = 0;
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
+/* C600 Series devices do not need 10ms d3_delay */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
+/* Lynxpoint-H PCH devices do not need 10ms d3_delay */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
 /* Intel Cherrytrail devices do not need 10ms d3_delay */
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2280, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b0, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b8, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22d8, quirk_remove_d3_delay);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22dc, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay);
+
 /*
- * Some devices may pass our check in pci_intx_mask_supported if
+ * Some devices may pass our check in pci_intx_mask_supported() if
  * PCI_COMMAND_INTX_DISABLE works though they actually do not properly
  * support this feature.
  */
@@ -3146,53 +3172,139 @@ static void quirk_broken_intx_masking(st
 {
 	dev->broken_intx_masking = 1;
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, 0x0030,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
-			 quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x0030,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
+			quirk_broken_intx_masking);
+
 /*
  * Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10)
  * Subsystem: Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC
  *
  * RTL8110SC - Fails under PCI device assignment using DisINTx masking.
  */
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8169,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
-			 quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_REALTEK, 0x8169,
+			quirk_broken_intx_masking);
 
 /*
  * Intel i40e (XL710/X710) 10/20/40GbE NICs all have broken INTx masking,
  * DisINTx can be set but the interrupt status bit is non-functional.
  */
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1572,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1574,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1580,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1581,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1583,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1584,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1585,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1586,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1587,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1588,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1589,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d0,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d1,
-			 quirk_broken_intx_masking);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x37d2,
-			 quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1572,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1574,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1580,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1581,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1583,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1584,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1585,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1586,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1587,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1588,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1589,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d0,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d1,
+			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x37d2,
+			quirk_broken_intx_masking);
+
+static u16 mellanox_broken_intx_devs[] = {
+	PCI_DEVICE_ID_MELLANOX_HERMON_SDR,
+	PCI_DEVICE_ID_MELLANOX_HERMON_DDR,
+	PCI_DEVICE_ID_MELLANOX_HERMON_QDR,
+	PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2,
+	PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2,
+	PCI_DEVICE_ID_MELLANOX_HERMON_EN,
+	PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2,
+	PCI_DEVICE_ID_MELLANOX_CONNECTX_EN,
+	PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2,
+	PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2,
+	PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2,
+	PCI_DEVICE_ID_MELLANOX_CONNECTX2,
+	PCI_DEVICE_ID_MELLANOX_CONNECTX3,
+	PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO,
+};
+
+#define CONNECTX_4_CURR_MAX_MINOR 99
+#define CONNECTX_4_INTX_SUPPORT_MINOR 14
+
+/*
+ * Check ConnectX-4/LX FW version to see if it supports legacy interrupts.
+ * If so, don't mark it as broken.
+ * FW minor > 99 means older FW version format and no INTx masking support.
+ * FW minor < 14 means new FW version format and no INTx masking support.
+ */
+static void mellanox_check_broken_intx_masking(struct pci_dev *pdev)
+{
+	__be32 __iomem *fw_ver;
+	u16 fw_major;
+	u16 fw_minor;
+	u16 fw_subminor;
+	u32 fw_maj_min;
+	u32 fw_sub_min;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mellanox_broken_intx_devs); i++) {
+		if (pdev->device == mellanox_broken_intx_devs[i]) {
+			pdev->broken_intx_masking = 1;
+			return;
+		}
+	}
+
+	/* Getting here means Connect-IB cards and up. Connect-IB has no INTx
+	 * support so shouldn't be checked further
+	 */
+	if (pdev->device == PCI_DEVICE_ID_MELLANOX_CONNECTIB)
+		return;
+
+	if (pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4 &&
+	    pdev->device != PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX)
+		return;
+
+	/* For ConnectX-4 and ConnectX-4LX, need to check FW support */
+	if (pci_enable_device_mem(pdev)) {
+		dev_warn(&pdev->dev, "Can't enable device memory\n");
+		return;
+	}
+
+	fw_ver = ioremap(pci_resource_start(pdev, 0), 4);
+	if (!fw_ver) {
+		dev_warn(&pdev->dev, "Can't map ConnectX-4 initialization segment\n");
+		goto out;
+	}
+
+	/* Reading from resource space should be 32b aligned */
+	fw_maj_min = ioread32be(fw_ver);
+	fw_sub_min = ioread32be(fw_ver + 1);
+	fw_major = fw_maj_min & 0xffff;
+	fw_minor = fw_maj_min >> 16;
+	fw_subminor = fw_sub_min & 0xffff;
+	if (fw_minor > CONNECTX_4_CURR_MAX_MINOR ||
+	    fw_minor < CONNECTX_4_INTX_SUPPORT_MINOR) {
+		dev_warn(&pdev->dev, "ConnectX-4: FW %u.%u.%u doesn't support INTx masking, disabling. Please upgrade FW to %d.14.1100 and up for INTx support\n",
+			 fw_major, fw_minor, fw_subminor, pdev->device ==
+			 PCI_DEVICE_ID_MELLANOX_CONNECTX4 ? 12 : 14);
+		pdev->broken_intx_masking = 1;
+	}
+
+	iounmap(fw_ver);
+
+out:
+	pci_disable_device(pdev);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID,
+			mellanox_check_broken_intx_masking);
 
 static void quirk_no_bus_reset(struct pci_dev *dev)
 {
@@ -3255,6 +3367,25 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IN
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PORT_RIDGE,
 			quirk_thunderbolt_hotplug_msi);
 
+static void quirk_chelsio_extend_vpd(struct pci_dev *dev)
+{
+	pci_set_vpd_size(dev, 8192);
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x20, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x21, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x22, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x23, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x24, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x25, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x26, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x30, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x31, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x32, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x35, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x36, quirk_chelsio_extend_vpd);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CHELSIO, 0x37, quirk_chelsio_extend_vpd);
+
 #ifdef CONFIG_ACPI
 /*
  * Apple: Shutdown Cactus Ridge Thunderbolt controller.
@@ -4030,6 +4161,26 @@ static int pci_quirk_intel_pch_acs(struc
 }
 
 /*
+ * These QCOM root ports do provide ACS-like features to disable peer
+ * transactions and validate bus numbers in requests, but do not provide an
+ * actual PCIe ACS capability.  Hardware supports source validation but it
+ * will report the issue as Completer Abort instead of ACS Violation.
+ * Hardware doesn't support peer-to-peer and each root port is a root
+ * complex with unique segment numbers.  It is not possible for one root
+ * port to pass traffic to another root port.  All PCIe transactions are
+ * terminated inside the root port.
+ */
+static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags)
+{
+	u16 flags = (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_SV);
+	int ret = acs_flags & ~flags ? 0 : 1;
+
+	dev_info(&dev->dev, "Using QCOM ACS Quirk (%d)\n", ret);
+
+	return ret;
+}
+
+/*
  * Sunrise Point PCH root ports implement ACS, but unfortunately as shown in
  * the datasheet (Intel 100 Series Chipset Family PCH Datasheet, Vol. 2,
  * 12.1.46, 12.1.47)[1] this chipset uses dwords for the ACS capability and
@@ -4044,15 +4195,35 @@ static int pci_quirk_intel_pch_acs(struc
  *
  * N.B. This doesn't fix what lspci shows.
  *
+ * The 100 series chipset specification update includes this as errata #23[3].
+ *
+ * The 200 series chipset (Union Point) has the same bug according to the
+ * specification update (Intel 200 Series Chipset Family Platform Controller
+ * Hub, Specification Update, January 2017, Revision 001, Document# 335194-001,
+ * Errata 22)[4].  Per the datasheet[5], root port PCI Device IDs for this
+ * chipset include:
+ *
+ * 0xa290-0xa29f PCI Express Root port #{0-16}
+ * 0xa2e7-0xa2ee PCI Express Root port #{17-24}
+ *
  * [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html
  * [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html
+ * [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html
+ * [4] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-spec-update.html
+ * [5] http://www.intel.com/content/www/us/en/chipsets/200-series-chipset-pch-datasheet-vol-1.html
  */
 static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
 {
-	return pci_is_pcie(dev) &&
-		pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT &&
-		((dev->device & ~0xf) == 0xa110 ||
-		 (dev->device >= 0xa167 && dev->device <= 0xa16a));
+	if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
+		return false;
+
+	switch (dev->device) {
+	case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
+	case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
+		return true;
+	}
+
+	return false;
 }
 
 #define INTEL_SPT_ACS_CTRL (PCI_ACS_CAP + 4)
@@ -4165,6 +4336,9 @@ static const struct pci_dev_acs_enabled
 	/* I219 */
 	{ PCI_VENDOR_ID_INTEL, 0x15b7, pci_quirk_mf_endpoint_acs },
 	{ PCI_VENDOR_ID_INTEL, 0x15b8, pci_quirk_mf_endpoint_acs },
+	/* QCOM QDF2xxx root ports */
+	{ 0x17cb, 0x400, pci_quirk_qcom_rp_acs },
+	{ 0x17cb, 0x401, pci_quirk_qcom_rp_acs },
 	/* Intel PCH root ports */
 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs },
 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_spt_pch_acs },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/rom.c linux-libre-4.9.52-gnu/drivers/pci/rom.c
--- linux-libre-4.9-gnu/drivers/pci/rom.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/rom.c	2017-09-27 08:40:05.000000000 -0400
@@ -35,6 +35,11 @@ int pci_enable_rom(struct pci_dev *pdev)
 	if (res->flags & IORESOURCE_ROM_SHADOW)
 		return 0;
 
+	/*
+	 * Ideally pci_update_resource() would update the ROM BAR address,
+	 * and we would only set the enable bit here.  But apparently some
+	 * devices have buggy ROM BARs that read as zero when disabled.
+	 */
 	pcibios_resource_to_bus(pdev->bus, &region, res);
 	pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr);
 	rom_addr &= ~PCI_ROM_ADDRESS_MASK;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pci/setup-res.c linux-libre-4.9.52-gnu/drivers/pci/setup-res.c
--- linux-libre-4.9-gnu/drivers/pci/setup-res.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pci/setup-res.c	2017-09-27 08:40:05.000000000 -0400
@@ -25,21 +25,18 @@
 #include <linux/slab.h>
 #include "pci.h"
 
-
-void pci_update_resource(struct pci_dev *dev, int resno)
+static void pci_std_update_resource(struct pci_dev *dev, int resno)
 {
 	struct pci_bus_region region;
 	bool disable;
 	u16 cmd;
 	u32 new, check, mask;
 	int reg;
-	enum pci_bar_type type;
 	struct resource *res = dev->resource + resno;
 
-	if (dev->is_virtfn) {
-		dev_warn(&dev->dev, "can't update VF BAR%d\n", resno);
+	/* Per SR-IOV spec 3.4.1.11, VF BARs are RO zero */
+	if (dev->is_virtfn)
 		return;
-	}
 
 	/*
 	 * Ignore resources for unimplemented BARs and unused resource slots
@@ -60,21 +57,34 @@ void pci_update_resource(struct pci_dev
 		return;
 
 	pcibios_resource_to_bus(dev->bus, &region, res);
+	new = region.start;
 
-	new = region.start | (res->flags & PCI_REGION_FLAG_MASK);
-	if (res->flags & IORESOURCE_IO)
+	if (res->flags & IORESOURCE_IO) {
 		mask = (u32)PCI_BASE_ADDRESS_IO_MASK;
-	else
+		new |= res->flags & ~PCI_BASE_ADDRESS_IO_MASK;
+	} else if (resno == PCI_ROM_RESOURCE) {
+		mask = (u32)PCI_ROM_ADDRESS_MASK;
+	} else {
 		mask = (u32)PCI_BASE_ADDRESS_MEM_MASK;
+		new |= res->flags & ~PCI_BASE_ADDRESS_MEM_MASK;
+	}
 
-	reg = pci_resource_bar(dev, resno, &type);
-	if (!reg)
-		return;
-	if (type != pci_bar_unknown) {
+	if (resno < PCI_ROM_RESOURCE) {
+		reg = PCI_BASE_ADDRESS_0 + 4 * resno;
+	} else if (resno == PCI_ROM_RESOURCE) {
+
+		/*
+		 * Apparently some Matrox devices have ROM BARs that read
+		 * as zero when disabled, so don't update ROM BARs unless
+		 * they're enabled.  See https://lkml.org/lkml/2005/8/30/138.
+		 */
 		if (!(res->flags & IORESOURCE_ROM_ENABLE))
 			return;
+
+		reg = dev->rom_base_reg;
 		new |= PCI_ROM_ADDRESS_ENABLE;
-	}
+	} else
+		return;
 
 	/*
 	 * We can't update a 64-bit BAR atomically, so when possible,
@@ -110,6 +120,16 @@ void pci_update_resource(struct pci_dev
 		pci_write_config_word(dev, PCI_COMMAND, cmd);
 }
 
+void pci_update_resource(struct pci_dev *dev, int resno)
+{
+	if (resno <= PCI_ROM_RESOURCE)
+		pci_std_update_resource(dev, resno);
+#ifdef CONFIG_PCI_IOV
+	else if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END)
+		pci_iov_update_resource(dev, resno);
+#endif
+}
+
 int pci_claim_resource(struct pci_dev *dev, int resource)
 {
 	struct resource *res = &dev->resource[resource];
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/phy/Kconfig linux-libre-4.9.52-gnu/drivers/phy/Kconfig
--- linux-libre-4.9-gnu/drivers/phy/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/phy/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -456,6 +456,7 @@ config PHY_QCOM_UFS
 config PHY_TUSB1210
 	tristate "TI TUSB1210 ULPI PHY module"
 	depends on USB_ULPI_BUS
+	depends on EXTCON || !EXTCON # if EXTCON=m, this cannot be built-in
 	select GENERIC_PHY
 	help
 	  Support for TI TUSB1210 USB ULPI PHY.
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c linux-libre-4.9.52-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c
--- linux-libre-4.9-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/berlin/berlin-bg4ct.c	2017-09-27 08:40:05.000000000 -0400
@@ -217,7 +217,7 @@ static const struct berlin_desc_group be
 	BERLIN_PINCTRL_GROUP("SCRD0_CRD_PRES", 0xc, 0x3, 0x15,
 			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO20 */
 			BERLIN_PINCTRL_FUNCTION(0x1, "scrd0"), /* crd pres */
-			BERLIN_PINCTRL_FUNCTION(0x1, "sd1a")), /* DAT3 */
+			BERLIN_PINCTRL_FUNCTION(0x3, "sd1a")), /* DAT3 */
 	BERLIN_PINCTRL_GROUP("SPI1_SS0n", 0xc, 0x3, 0x18,
 			BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS0n */
 			BERLIN_PINCTRL_FUNCTION(0x1, "gpio"), /* GPIO37 */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/freescale/pinctrl-imx.c linux-libre-4.9.52-gnu/drivers/pinctrl/freescale/pinctrl-imx.c
--- linux-libre-4.9-gnu/drivers/pinctrl/freescale/pinctrl-imx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/freescale/pinctrl-imx.c	2017-09-27 08:40:05.000000000 -0400
@@ -778,10 +778,10 @@ int imx_pinctrl_probe(struct platform_de
 	imx_pinctrl_desc->name = dev_name(&pdev->dev);
 	imx_pinctrl_desc->pins = info->pins;
 	imx_pinctrl_desc->npins = info->npins;
-	imx_pinctrl_desc->pctlops = &imx_pctrl_ops,
-	imx_pinctrl_desc->pmxops = &imx_pmx_ops,
-	imx_pinctrl_desc->confops = &imx_pinconf_ops,
-	imx_pinctrl_desc->owner = THIS_MODULE,
+	imx_pinctrl_desc->pctlops = &imx_pctrl_ops;
+	imx_pinctrl_desc->pmxops = &imx_pmx_ops;
+	imx_pinctrl_desc->confops = &imx_pinconf_ops;
+	imx_pinctrl_desc->owner = THIS_MODULE;
 
 	ret = imx_pinctrl_probe_dt(pdev, info);
 	if (ret) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c linux-libre-4.9.52-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c
--- linux-libre-4.9-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/freescale/pinctrl-mxs.c	2017-09-27 08:40:05.000000000 -0400
@@ -194,6 +194,16 @@ static int mxs_pinctrl_get_func_groups(s
 	return 0;
 }
 
+static void mxs_pinctrl_rmwl(u32 value, u32 mask, u8 shift, void __iomem *reg)
+{
+	u32 tmp;
+
+	tmp = readl(reg);
+	tmp &= ~(mask << shift);
+	tmp |= value << shift;
+	writel(tmp, reg);
+}
+
 static int mxs_pinctrl_set_mux(struct pinctrl_dev *pctldev, unsigned selector,
 			       unsigned group)
 {
@@ -211,8 +221,7 @@ static int mxs_pinctrl_set_mux(struct pi
 		reg += bank * 0x20 + pin / 16 * 0x10;
 		shift = pin % 16 * 2;
 
-		writel(0x3 << shift, reg + CLR);
-		writel(g->muxsel[i] << shift, reg + SET);
+		mxs_pinctrl_rmwl(g->muxsel[i], 0x3, shift, reg);
 	}
 
 	return 0;
@@ -279,8 +288,7 @@ static int mxs_pinconf_group_set(struct
 			/* mA */
 			if (config & MA_PRESENT) {
 				shift = pin % 8 * 4;
-				writel(0x3 << shift, reg + CLR);
-				writel(ma << shift, reg + SET);
+				mxs_pinctrl_rmwl(ma, 0x3, shift, reg);
 			}
 
 			/* vol */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-baytrail.c linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-baytrail.c
--- linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-baytrail.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-baytrail.c	2017-09-27 08:40:05.000000000 -0400
@@ -731,16 +731,23 @@ static void __iomem *byt_gpio_reg(struct
 				  int reg)
 {
 	struct byt_community *comm = byt_get_community(vg, offset);
-	u32 reg_offset = 0;
+	u32 reg_offset;
 
 	if (!comm)
 		return NULL;
 
 	offset -= comm->pin_base;
-	if (reg == BYT_INT_STAT_REG)
+	switch (reg) {
+	case BYT_INT_STAT_REG:
 		reg_offset = (offset / 32) * 4;
-	else
+		break;
+	case BYT_DEBOUNCE_REG:
+		reg_offset = 0;
+		break;
+	default:
 		reg_offset = comm->pad_map[offset] * 16;
+		break;
+	}
 
 	return comm->reg_base + reg_offset + reg;
 }
@@ -1092,6 +1099,7 @@ static int byt_pin_config_get(struct pin
 	enum pin_config_param param = pinconf_to_config_param(*config);
 	void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
 	void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
+	void __iomem *db_reg = byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG);
 	unsigned long flags;
 	u32 conf, pull, val, debounce;
 	u16 arg = 0;
@@ -1128,7 +1136,7 @@ static int byt_pin_config_get(struct pin
 			return -EINVAL;
 
 		raw_spin_lock_irqsave(&vg->lock, flags);
-		debounce = readl(byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG));
+		debounce = readl(db_reg);
 		raw_spin_unlock_irqrestore(&vg->lock, flags);
 
 		switch (debounce & BYT_DEBOUNCE_PULSE_MASK) {
@@ -1176,6 +1184,7 @@ static int byt_pin_config_set(struct pin
 	unsigned int param, arg;
 	void __iomem *conf_reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
 	void __iomem *val_reg = byt_gpio_reg(vg, offset, BYT_VAL_REG);
+	void __iomem *db_reg = byt_gpio_reg(vg, offset, BYT_DEBOUNCE_REG);
 	unsigned long flags;
 	u32 conf, val, debounce;
 	int i, ret = 0;
@@ -1238,36 +1247,44 @@ static int byt_pin_config_set(struct pin
 
 			break;
 		case PIN_CONFIG_INPUT_DEBOUNCE:
-			debounce = readl(byt_gpio_reg(vg, offset,
-						      BYT_DEBOUNCE_REG));
-			conf &= ~BYT_DEBOUNCE_PULSE_MASK;
+			debounce = readl(db_reg);
+			debounce &= ~BYT_DEBOUNCE_PULSE_MASK;
+
+			if (arg)
+				conf |= BYT_DEBOUNCE_EN;
+			else
+				conf &= ~BYT_DEBOUNCE_EN;
 
 			switch (arg) {
 			case 375:
-				conf |= BYT_DEBOUNCE_PULSE_375US;
+				debounce |= BYT_DEBOUNCE_PULSE_375US;
 				break;
 			case 750:
-				conf |= BYT_DEBOUNCE_PULSE_750US;
+				debounce |= BYT_DEBOUNCE_PULSE_750US;
 				break;
 			case 1500:
-				conf |= BYT_DEBOUNCE_PULSE_1500US;
+				debounce |= BYT_DEBOUNCE_PULSE_1500US;
 				break;
 			case 3000:
-				conf |= BYT_DEBOUNCE_PULSE_3MS;
+				debounce |= BYT_DEBOUNCE_PULSE_3MS;
 				break;
 			case 6000:
-				conf |= BYT_DEBOUNCE_PULSE_6MS;
+				debounce |= BYT_DEBOUNCE_PULSE_6MS;
 				break;
 			case 12000:
-				conf |= BYT_DEBOUNCE_PULSE_12MS;
+				debounce |= BYT_DEBOUNCE_PULSE_12MS;
 				break;
 			case 24000:
-				conf |= BYT_DEBOUNCE_PULSE_24MS;
+				debounce |= BYT_DEBOUNCE_PULSE_24MS;
 				break;
 			default:
-				ret = -EINVAL;
+				if (arg)
+					ret = -EINVAL;
+				break;
 			}
 
+			if (!ret)
+				writel(debounce, db_reg);
 			break;
 		default:
 			ret = -ENOTSUPP;
@@ -1606,7 +1623,9 @@ static void byt_gpio_irq_handler(struct
 			continue;
 		}
 
+		raw_spin_lock(&vg->lock);
 		pending = readl(reg);
+		raw_spin_unlock(&vg->lock);
 		for_each_set_bit(pin, &pending, 32) {
 			virq = irq_find_mapping(vg->chip.irqdomain, base + pin);
 			generic_handle_irq(virq);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-broxton.c linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-broxton.c
--- linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-broxton.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-broxton.c	2017-09-27 08:40:05.000000000 -0400
@@ -19,7 +19,7 @@
 
 #define BXT_PAD_OWN	0x020
 #define BXT_HOSTSW_OWN	0x080
-#define BXT_PADCFGLOCK	0x090
+#define BXT_PADCFGLOCK	0x060
 #define BXT_GPI_IE	0x110
 
 #define BXT_COMMUNITY(s, e)				\
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c
--- linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c	2017-09-27 08:40:05.000000000 -0400
@@ -13,6 +13,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/dmi.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -1524,10 +1525,32 @@ static void chv_gpio_irq_handler(struct
 	chained_irq_exit(chip, desc);
 }
 
+/*
+ * Certain machines seem to hardcode Linux IRQ numbers in their ACPI
+ * tables. Since we leave GPIOs that are not capable of generating
+ * interrupts out of the irqdomain the numbering will be different and
+ * cause devices using the hardcoded IRQ numbers fail. In order not to
+ * break such machines we will only mask pins from irqdomain if the machine
+ * is not listed below.
+ */
+static const struct dmi_system_id chv_no_valid_mask[] = {
+	{
+		/* See https://bugzilla.kernel.org/show_bug.cgi?id=194945 */
+		.ident = "Acer Chromebook (CYAN)",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Edgar"),
+			DMI_MATCH(DMI_BIOS_DATE, "05/21/2016"),
+		},
+	},
+	{}
+};
+
 static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
 {
 	const struct chv_gpio_pinrange *range;
 	struct gpio_chip *chip = &pctrl->chip;
+	bool need_valid_mask = !dmi_check_system(chv_no_valid_mask);
 	int ret, i, offset;
 
 	*chip = chv_gpio_chip;
@@ -1536,7 +1559,7 @@ static int chv_gpio_probe(struct chv_pin
 	chip->label = dev_name(pctrl->dev);
 	chip->parent = pctrl->dev;
 	chip->base = -1;
-	chip->irq_need_valid_mask = true;
+	chip->irq_need_valid_mask = need_valid_mask;
 
 	ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl);
 	if (ret) {
@@ -1567,7 +1590,7 @@ static int chv_gpio_probe(struct chv_pin
 		intsel &= CHV_PADCTRL0_INTSEL_MASK;
 		intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
 
-		if (intsel >= pctrl->community->nirqs)
+		if (need_valid_mask && intsel >= pctrl->community->nirqs)
 			clear_bit(i, chip->irq_valid_mask);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-intel.c linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-intel.c
--- linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-intel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-intel.c	2017-09-27 08:40:05.000000000 -0400
@@ -353,6 +353,21 @@ static int intel_pinmux_set_mux(struct p
 	return 0;
 }
 
+static void __intel_gpio_set_direction(void __iomem *padcfg0, bool input)
+{
+	u32 value;
+
+	value = readl(padcfg0);
+	if (input) {
+		value &= ~PADCFG0_GPIORXDIS;
+		value |= PADCFG0_GPIOTXDIS;
+	} else {
+		value &= ~PADCFG0_GPIOTXDIS;
+		value |= PADCFG0_GPIORXDIS;
+	}
+	writel(value, padcfg0);
+}
+
 static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
 				     struct pinctrl_gpio_range *range,
 				     unsigned pin)
@@ -375,11 +390,11 @@ static int intel_gpio_request_enable(str
 	/* Disable SCI/SMI/NMI generation */
 	value &= ~(PADCFG0_GPIROUTIOXAPIC | PADCFG0_GPIROUTSCI);
 	value &= ~(PADCFG0_GPIROUTSMI | PADCFG0_GPIROUTNMI);
-	/* Disable TX buffer and enable RX (this will be input) */
-	value &= ~PADCFG0_GPIORXDIS;
-	value |= PADCFG0_GPIOTXDIS;
 	writel(value, padcfg0);
 
+	/* Disable TX buffer and enable RX (this will be input) */
+	__intel_gpio_set_direction(padcfg0, true);
+
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
 	return 0;
@@ -392,18 +407,11 @@ static int intel_gpio_set_direction(stru
 	struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
 	void __iomem *padcfg0;
 	unsigned long flags;
-	u32 value;
 
 	raw_spin_lock_irqsave(&pctrl->lock, flags);
 
 	padcfg0 = intel_get_padcfg(pctrl, pin, PADCFG0);
-
-	value = readl(padcfg0);
-	if (input)
-		value |= PADCFG0_GPIOTXDIS;
-	else
-		value &= ~PADCFG0_GPIOTXDIS;
-	writel(value, padcfg0);
+	__intel_gpio_set_direction(padcfg0, input);
 
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-merrifield.c linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-merrifield.c
--- linux-libre-4.9-gnu/drivers/pinctrl/intel/pinctrl-merrifield.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/intel/pinctrl-merrifield.c	2017-09-27 08:40:05.000000000 -0400
@@ -343,9 +343,9 @@ static const struct pinctrl_pin_desc mrf
 
 static const unsigned int mrfld_sdio_pins[] = { 50, 51, 52, 53, 54, 55, 56 };
 static const unsigned int mrfld_spi5_pins[] = { 90, 91, 92, 93, 94, 95, 96 };
-static const unsigned int mrfld_uart0_pins[] = { 124, 125, 126, 127 };
-static const unsigned int mrfld_uart1_pins[] = { 128, 129, 130, 131 };
-static const unsigned int mrfld_uart2_pins[] = { 132, 133, 134, 135 };
+static const unsigned int mrfld_uart0_pins[] = { 115, 116, 117, 118 };
+static const unsigned int mrfld_uart1_pins[] = { 119, 120, 121, 122 };
+static const unsigned int mrfld_uart2_pins[] = { 123, 124, 125, 126 };
 static const unsigned int mrfld_pwm0_pins[] = { 144 };
 static const unsigned int mrfld_pwm1_pins[] = { 145 };
 static const unsigned int mrfld_pwm2_pins[] = { 132 };
@@ -794,6 +794,9 @@ static int mrfld_config_set(struct pinct
 	unsigned int i;
 	int ret;
 
+	if (!mrfld_buf_available(mp, pin))
+		return -ENOTSUPP;
+
 	for (i = 0; i < nconfigs; i++) {
 		switch (pinconf_to_config_param(configs[i])) {
 		case PIN_CONFIG_BIAS_DISABLE:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c linux-libre-4.9.52-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c
--- linux-libre-4.9-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/meson/pinctrl-meson8b.c	2017-09-27 08:40:05.000000000 -0400
@@ -739,8 +739,8 @@ static const char * const sdxc_c_groups[
 static const char * const nand_groups[] = {
 	"nand_io", "nand_io_ce0", "nand_io_ce1",
 	"nand_io_rb0", "nand_ale", "nand_cle",
-	"nand_wen_clk", "nand_ren_clk", "nand_dqs0",
-	"nand_dqs1"
+	"nand_wen_clk", "nand_ren_clk", "nand_dqs_0",
+	"nand_dqs_1"
 };
 
 static const char * const nor_groups[] = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/meson/pinctrl-meson.c linux-libre-4.9.52-gnu/drivers/pinctrl/meson/pinctrl-meson.c
--- linux-libre-4.9-gnu/drivers/pinctrl/meson/pinctrl-meson.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/meson/pinctrl-meson.c	2017-09-27 08:40:05.000000000 -0400
@@ -212,7 +212,7 @@ static int meson_pmx_request_gpio(struct
 {
 	struct meson_pinctrl *pc = pinctrl_dev_get_drvdata(pcdev);
 
-	meson_pmx_disable_other_groups(pc, range->pin_base + offset, -1);
+	meson_pmx_disable_other_groups(pc, offset, -1);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/meson/pinctrl-meson-gxbb.c linux-libre-4.9.52-gnu/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
--- linux-libre-4.9-gnu/drivers/pinctrl/meson/pinctrl-meson-gxbb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/meson/pinctrl-meson-gxbb.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,6 +85,7 @@ static const struct pinctrl_pin_desc mes
 	MESON_PIN(GPIODV_15, EE_OFF),
 	MESON_PIN(GPIODV_16, EE_OFF),
 	MESON_PIN(GPIODV_17, EE_OFF),
+	MESON_PIN(GPIODV_18, EE_OFF),
 	MESON_PIN(GPIODV_19, EE_OFF),
 	MESON_PIN(GPIODV_20, EE_OFF),
 	MESON_PIN(GPIODV_21, EE_OFF),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/pinctrl-amd.c linux-libre-4.9.52-gnu/drivers/pinctrl/pinctrl-amd.c
--- linux-libre-4.9-gnu/drivers/pinctrl/pinctrl-amd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/pinctrl-amd.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,6 +32,7 @@
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinconf-generic.h>
 
+#include "core.h"
 #include "pinctrl-utils.h"
 #include "pinctrl-amd.h"
 
@@ -382,26 +383,21 @@ static int amd_gpio_irq_set_type(struct
 {
 	int ret = 0;
 	u32 pin_reg;
-	unsigned long flags;
-	bool level_trig;
-	u32 active_level;
+	unsigned long flags, irq_flags;
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct amd_gpio *gpio_dev = gpiochip_get_data(gc);
 
 	spin_lock_irqsave(&gpio_dev->lock, flags);
 	pin_reg = readl(gpio_dev->base + (d->hwirq)*4);
 
-	/*
-	 * When level_trig is set EDGE and active_level is set HIGH in BIOS
-	 * default settings, ignore incoming settings from client and use
-	 * BIOS settings to configure GPIO register.
+	/* Ignore the settings coming from the client and
+	 * read the values from the ACPI tables
+	 * while setting the trigger type
 	 */
-	level_trig = !(pin_reg & (LEVEL_TRIGGER << LEVEL_TRIG_OFF));
-	active_level = pin_reg & (ACTIVE_LEVEL_MASK << ACTIVE_LEVEL_OFF);
 
-	if(level_trig &&
-	   ((active_level >> ACTIVE_LEVEL_OFF) == ACTIVE_HIGH))
-		type = IRQ_TYPE_EDGE_FALLING;
+	irq_flags = irq_get_trigger_type(d->irq);
+	if (irq_flags != IRQ_TYPE_NONE)
+		type = irq_flags;
 
 	switch (type & IRQ_TYPE_SENSE_MASK) {
 	case IRQ_TYPE_EDGE_RISING:
@@ -717,6 +713,69 @@ static const struct pinconf_ops amd_pinc
 	.pin_config_group_set = amd_pinconf_group_set,
 };
 
+#ifdef CONFIG_PM_SLEEP
+static bool amd_gpio_should_save(struct amd_gpio *gpio_dev, unsigned int pin)
+{
+	const struct pin_desc *pd = pin_desc_get(gpio_dev->pctrl, pin);
+
+	if (!pd)
+		return false;
+
+	/*
+	 * Only restore the pin if it is actually in use by the kernel (or
+	 * by userspace).
+	 */
+	if (pd->mux_owner || pd->gpio_owner ||
+	    gpiochip_line_is_irq(&gpio_dev->gc, pin))
+		return true;
+
+	return false;
+}
+
+int amd_gpio_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct amd_gpio *gpio_dev = platform_get_drvdata(pdev);
+	struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
+	int i;
+
+	for (i = 0; i < desc->npins; i++) {
+		int pin = desc->pins[i].number;
+
+		if (!amd_gpio_should_save(gpio_dev, pin))
+			continue;
+
+		gpio_dev->saved_regs[i] = readl(gpio_dev->base + pin*4);
+	}
+
+	return 0;
+}
+
+int amd_gpio_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct amd_gpio *gpio_dev = platform_get_drvdata(pdev);
+	struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
+	int i;
+
+	for (i = 0; i < desc->npins; i++) {
+		int pin = desc->pins[i].number;
+
+		if (!amd_gpio_should_save(gpio_dev, pin))
+			continue;
+
+		writel(gpio_dev->saved_regs[i], gpio_dev->base + pin*4);
+	}
+
+	return 0;
+}
+
+static const struct dev_pm_ops amd_gpio_pm_ops = {
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(amd_gpio_suspend,
+				     amd_gpio_resume)
+};
+#endif
+
 static struct pinctrl_desc amd_pinctrl_desc = {
 	.pins	= kerncz_pins,
 	.npins = ARRAY_SIZE(kerncz_pins),
@@ -756,6 +815,14 @@ static int amd_gpio_probe(struct platfor
 		return -EINVAL;
 	}
 
+#ifdef CONFIG_PM_SLEEP
+	gpio_dev->saved_regs = devm_kcalloc(&pdev->dev, amd_pinctrl_desc.npins,
+					    sizeof(*gpio_dev->saved_regs),
+					    GFP_KERNEL);
+	if (!gpio_dev->saved_regs)
+		return -ENOMEM;
+#endif
+
 	gpio_dev->pdev = pdev;
 	gpio_dev->gc.direction_input	= amd_gpio_direction_input;
 	gpio_dev->gc.direction_output	= amd_gpio_direction_output;
@@ -844,6 +911,9 @@ static struct platform_driver amd_gpio_d
 	.driver		= {
 		.name	= "amd_gpio",
 		.acpi_match_table = ACPI_PTR(amd_gpio_acpi_match),
+#ifdef CONFIG_PM_SLEEP
+		.pm	= &amd_gpio_pm_ops,
+#endif
 	},
 	.probe		= amd_gpio_probe,
 	.remove		= amd_gpio_remove,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/pinctrl-amd.h linux-libre-4.9.52-gnu/drivers/pinctrl/pinctrl-amd.h
--- linux-libre-4.9-gnu/drivers/pinctrl/pinctrl-amd.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/pinctrl-amd.h	2017-09-27 08:40:05.000000000 -0400
@@ -95,6 +95,7 @@ struct amd_gpio {
 	struct gpio_chip        gc;
 	struct resource         *res;
 	struct platform_device  *pdev;
+	u32			*saved_regs;
 };
 
 /*  KERNCZ configuration*/
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/qcom/pinctrl-ipq4019.c linux-libre-4.9.52-gnu/drivers/pinctrl/qcom/pinctrl-ipq4019.c
--- linux-libre-4.9-gnu/drivers/pinctrl/qcom/pinctrl-ipq4019.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/qcom/pinctrl-ipq4019.c	2017-09-27 08:40:05.000000000 -0400
@@ -405,6 +405,36 @@ static const struct msm_pingroup ipq4019
 	PINGROUP(67, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(68, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 	PINGROUP(69, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(70, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(71, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(72, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(73, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(74, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(75, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(76, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(77, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(78, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(79, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(80, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(81, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(82, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(83, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(84, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(85, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(86, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(87, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(88, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(89, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(90, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(91, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(92, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(93, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(94, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(95, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(96, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(97, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(98, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
+	PINGROUP(99, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA),
 };
 
 static const struct msm_pinctrl_soc_data ipq4019_pinctrl = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/qcom/pinctrl-msm.c linux-libre-4.9.52-gnu/drivers/pinctrl/qcom/pinctrl-msm.c
--- linux-libre-4.9-gnu/drivers/pinctrl/qcom/pinctrl-msm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/qcom/pinctrl-msm.c	2017-09-27 08:40:05.000000000 -0400
@@ -594,10 +594,6 @@ static void msm_gpio_irq_unmask(struct i
 
 	spin_lock_irqsave(&pctrl->lock, flags);
 
-	val = readl(pctrl->regs + g->intr_status_reg);
-	val &= ~BIT(g->intr_status_bit);
-	writel(val, pctrl->regs + g->intr_status_reg);
-
 	val = readl(pctrl->regs + g->intr_cfg_reg);
 	val |= BIT(g->intr_enable_bit);
 	writel(val, pctrl->regs + g->intr_cfg_reg);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c linux-libre-4.9.52-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c
--- linux-libre-4.9-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/samsung/pinctrl-exynos.c	2017-09-27 08:40:05.000000000 -0400
@@ -195,8 +195,6 @@ static int exynos_irq_request_resources(
 
 	spin_unlock_irqrestore(&bank->slock, flags);
 
-	exynos_irq_unmask(irqd);
-
 	return 0;
 }
 
@@ -217,8 +215,6 @@ static void exynos_irq_release_resources
 	shift = irqd->hwirq * bank_type->fld_width[PINCFG_TYPE_FUNC];
 	mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
 
-	exynos_irq_mask(irqd);
-
 	spin_lock_irqsave(&bank->slock, flags);
 
 	con = readl(d->virt_base + reg_con);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/core.c linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/core.c
--- linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -389,6 +389,21 @@ int sh_pfc_config_mux(struct sh_pfc *pfc
 	return 0;
 }
 
+const struct sh_pfc_bias_info *
+sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
+			unsigned int num, unsigned int pin)
+{
+	unsigned int i;
+
+	for (i = 0; i < num; i++)
+		if (info[i].pin == pin)
+			return &info[i];
+
+	WARN_ONCE(1, "Pin %u is not in bias info list\n", pin);
+
+	return NULL;
+}
+
 static int sh_pfc_init_ranges(struct sh_pfc *pfc)
 {
 	struct sh_pfc_pin_range *range;
@@ -571,6 +586,9 @@ static int sh_pfc_probe(struct platform_
 		ret = info->ops->init(pfc);
 		if (ret < 0)
 			return ret;
+
+		/* .init() may have overridden pfc->info */
+		info = pfc->info;
 	}
 
 	/* Enable dummy states for those platforms without pinctrl support */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/core.h linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/core.h
--- linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/core.h	2017-09-27 08:40:05.000000000 -0400
@@ -33,4 +33,8 @@ void sh_pfc_write_reg(struct sh_pfc *pfc
 int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin);
 int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type);
 
+const struct sh_pfc_bias_info *
+sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
+			unsigned int num, unsigned int pin);
+
 #endif /* __SH_PFC_CORE_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
--- linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7791.c	2017-09-27 08:40:05.000000000 -0400
@@ -203,7 +203,7 @@ enum {
 
 	/* IPSR6 */
 	FN_AUDIO_CLKB, FN_STP_OPWM_0_B, FN_MSIOF1_SCK_B,
-	FN_SCIF_CLK, FN_BPFCLK_E,
+	FN_SCIF_CLK, FN_DVC_MUTE, FN_BPFCLK_E,
 	FN_AUDIO_CLKC, FN_SCIFB0_SCK_C, FN_MSIOF1_SYNC_B, FN_RX2,
 	FN_SCIFA2_RXD, FN_FMIN_E,
 	FN_AUDIO_CLKOUT, FN_MSIOF1_SS1_B, FN_TX2, FN_SCIFA2_TXD,
@@ -573,7 +573,7 @@ enum {
 
 	/* IPSR6 */
 	AUDIO_CLKB_MARK, STP_OPWM_0_B_MARK, MSIOF1_SCK_B_MARK,
-	SCIF_CLK_MARK, BPFCLK_E_MARK,
+	SCIF_CLK_MARK, DVC_MUTE_MARK, BPFCLK_E_MARK,
 	AUDIO_CLKC_MARK, SCIFB0_SCK_C_MARK, MSIOF1_SYNC_B_MARK, RX2_MARK,
 	SCIFA2_RXD_MARK, FMIN_E_MARK,
 	AUDIO_CLKOUT_MARK, MSIOF1_SS1_B_MARK, TX2_MARK, SCIFA2_TXD_MARK,
@@ -1010,14 +1010,17 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP4_12_10, SCL2, SEL_IIC2_0),
 	PINMUX_IPSR_MSEL(IP4_12_10, GPS_CLK_B, SEL_GPS_1),
 	PINMUX_IPSR_MSEL(IP4_12_10, GLO_Q0_D, SEL_GPS_3),
+	PINMUX_IPSR_MSEL(IP4_12_10, HSCK1_E, SEL_HSCIF1_4),
 	PINMUX_IPSR_GPSR(IP4_15_13, SSI_WS2),
 	PINMUX_IPSR_MSEL(IP4_15_13, SDA2, SEL_IIC2_0),
 	PINMUX_IPSR_MSEL(IP4_15_13, GPS_SIGN_B, SEL_GPS_1),
 	PINMUX_IPSR_MSEL(IP4_15_13, RX2_E, SEL_SCIF2_4),
 	PINMUX_IPSR_MSEL(IP4_15_13, GLO_Q1_D, SEL_GPS_3),
+	PINMUX_IPSR_MSEL(IP4_15_13, HCTS1_N_E, SEL_HSCIF1_4),
 	PINMUX_IPSR_GPSR(IP4_18_16, SSI_SDATA2),
 	PINMUX_IPSR_MSEL(IP4_18_16, GPS_MAG_B, SEL_GPS_1),
 	PINMUX_IPSR_MSEL(IP4_18_16, TX2_E, SEL_SCIF2_4),
+	PINMUX_IPSR_MSEL(IP4_18_16, HRTS1_N_E, SEL_HSCIF1_4),
 	PINMUX_IPSR_GPSR(IP4_19, SSI_SCK34),
 	PINMUX_IPSR_GPSR(IP4_20, SSI_WS34),
 	PINMUX_IPSR_GPSR(IP4_21, SSI_SDATA3),
@@ -1090,6 +1093,7 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP6_2_0, STP_OPWM_0_B, SEL_SSP_1),
 	PINMUX_IPSR_MSEL(IP6_2_0, MSIOF1_SCK_B, SEL_SOF1_1),
 	PINMUX_IPSR_MSEL(IP6_2_0, SCIF_CLK, SEL_SCIF_0),
+	PINMUX_IPSR_GPSR(IP6_2_0, DVC_MUTE),
 	PINMUX_IPSR_MSEL(IP6_2_0, BPFCLK_E, SEL_FM_4),
 	PINMUX_IPSR_GPSR(IP6_5_3, AUDIO_CLKC),
 	PINMUX_IPSR_MSEL(IP6_5_3, SCIFB0_SCK_C, SEL_SCIFB_2),
@@ -1099,7 +1103,7 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP6_5_3, FMIN_E, SEL_FM_4),
 	PINMUX_IPSR_GPSR(IP6_7_6, AUDIO_CLKOUT),
 	PINMUX_IPSR_MSEL(IP6_7_6, MSIOF1_SS1_B, SEL_SOF1_1),
-	PINMUX_IPSR_MSEL(IP6_5_3, TX2, SEL_SCIF2_0),
+	PINMUX_IPSR_MSEL(IP6_7_6, TX2, SEL_SCIF2_0),
 	PINMUX_IPSR_MSEL(IP6_7_6, SCIFA2_TXD, SEL_SCIFA2_0),
 	PINMUX_IPSR_GPSR(IP6_9_8, IRQ0),
 	PINMUX_IPSR_MSEL(IP6_9_8, SCIFB1_RXD_D, SEL_SCIFB1_3),
@@ -5810,7 +5814,7 @@ static const struct pinmux_cfg_reg pinmu
 		0, 0,
 		/* IP6_2_0 [3] */
 		FN_AUDIO_CLKB, FN_STP_OPWM_0_B, FN_MSIOF1_SCK_B,
-		FN_SCIF_CLK, 0, FN_BPFCLK_E,
+		FN_SCIF_CLK, FN_DVC_MUTE, FN_BPFCLK_E,
 		0, 0, }
 	},
 	{ PINMUX_CFG_REG_VAR("IPSR7", 0xE606003C, 32,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7794.c linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7794.c
--- linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7794.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7794.c	2017-09-27 08:40:05.000000000 -0400
@@ -281,8 +281,8 @@ enum {
 	FN_AVB_AVTP_CAPTURE, FN_ETH_CRS_DV_B, FN_SSI_WS1, FN_SCIF1_TXD_B,
 	FN_IIC1_SDA_C, FN_VI1_DATA0, FN_CAN0_TX_D, FN_AVB_AVTP_MATCH,
 	FN_ETH_RX_ER_B, FN_SSI_SDATA1, FN_HSCIF1_HRX_B, FN_SDATA, FN_VI1_DATA1,
-	FN_ATAG0_N, FN_ETH_RXD0_B, FN_SSI_SCK2, FN_HSCIF1_HTX_B, FN_VI1_DATA2,
-	FN_MDATA, FN_ATAWR0_N, FN_ETH_RXD1_B,
+	FN_ATAWR0_N, FN_ETH_RXD0_B, FN_SSI_SCK2, FN_HSCIF1_HTX_B, FN_VI1_DATA2,
+	FN_MDATA, FN_ATAG0_N, FN_ETH_RXD1_B,
 
 	/* IPSR13 */
 	FN_SSI_WS2, FN_HSCIF1_HCTS_N_B, FN_SCIFA0_RXD_D, FN_VI1_DATA3, FN_SCKZ,
@@ -575,8 +575,8 @@ enum {
 	ETH_CRS_DV_B_MARK, SSI_WS1_MARK, SCIF1_TXD_B_MARK, IIC1_SDA_C_MARK,
 	VI1_DATA0_MARK, CAN0_TX_D_MARK, AVB_AVTP_MATCH_MARK, ETH_RX_ER_B_MARK,
 	SSI_SDATA1_MARK, HSCIF1_HRX_B_MARK, VI1_DATA1_MARK, SDATA_MARK,
-	ATAG0_N_MARK, ETH_RXD0_B_MARK, SSI_SCK2_MARK, HSCIF1_HTX_B_MARK,
-	VI1_DATA2_MARK, MDATA_MARK, ATAWR0_N_MARK, ETH_RXD1_B_MARK,
+	ATAWR0_N_MARK, ETH_RXD0_B_MARK, SSI_SCK2_MARK, HSCIF1_HTX_B_MARK,
+	VI1_DATA2_MARK, MDATA_MARK, ATAG0_N_MARK, ETH_RXD1_B_MARK,
 
 	/* IPSR13 */
 	SSI_WS2_MARK, HSCIF1_HCTS_N_B_MARK, SCIFA0_RXD_D_MARK, VI1_DATA3_MARK,
@@ -1413,13 +1413,13 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP12_26_24, HSCIF1_HRX_B, SEL_HSCIF1_1),
 	PINMUX_IPSR_GPSR(IP12_26_24, VI1_DATA1),
 	PINMUX_IPSR_MSEL(IP12_26_24, SDATA, SEL_FSN_0),
-	PINMUX_IPSR_GPSR(IP12_26_24, ATAG0_N),
+	PINMUX_IPSR_GPSR(IP12_26_24, ATAWR0_N),
 	PINMUX_IPSR_MSEL(IP12_26_24, ETH_RXD0_B, SEL_ETH_1),
 	PINMUX_IPSR_MSEL(IP12_29_27, SSI_SCK2, SEL_SSI2_0),
 	PINMUX_IPSR_MSEL(IP12_29_27, HSCIF1_HTX_B, SEL_HSCIF1_1),
 	PINMUX_IPSR_GPSR(IP12_29_27, VI1_DATA2),
 	PINMUX_IPSR_MSEL(IP12_29_27, MDATA, SEL_FSN_0),
-	PINMUX_IPSR_GPSR(IP12_29_27, ATAWR0_N),
+	PINMUX_IPSR_GPSR(IP12_29_27, ATAG0_N),
 	PINMUX_IPSR_MSEL(IP12_29_27, ETH_RXD1_B, SEL_ETH_1),
 
 	/* IPSR13 */
@@ -4938,10 +4938,10 @@ static const struct pinmux_cfg_reg pinmu
 		0, 0, 0, 0,
 		/* IP12_29_27 [3] */
 		FN_SSI_SCK2, FN_HSCIF1_HTX_B, FN_VI1_DATA2, FN_MDATA,
-		FN_ATAWR0_N, FN_ETH_RXD1_B, 0, 0,
+		FN_ATAG0_N, FN_ETH_RXD1_B, 0, 0,
 		/* IP12_26_24 [3] */
 		FN_SSI_SDATA1, FN_HSCIF1_HRX_B, FN_VI1_DATA1, FN_SDATA,
-		FN_ATAG0_N, FN_ETH_RXD0_B, 0, 0,
+		FN_ATAWR0_N, FN_ETH_RXD0_B, 0, 0,
 		/* IP12_23_21 [3] */
 		FN_SSI_WS1, FN_SCIF1_TXD_B, FN_IIC1_SDA_C, FN_VI1_DATA0,
 		FN_CAN0_TX_D, FN_AVB_AVTP_MATCH, FN_ETH_RX_ER_B, 0,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7795.c linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
--- linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7795.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pfc-r8a7795.c	2017-09-27 08:40:05.000000000 -0400
@@ -2056,7 +2056,7 @@ static const unsigned int hscif2_clk_b_p
 	RCAR_GP_PIN(6, 21),
 };
 static const unsigned int hscif2_clk_b_mux[] = {
-	HSCK1_B_MARK,
+	HSCK2_B_MARK,
 };
 static const unsigned int hscif2_ctrl_b_pins[] = {
 	/* RTS, CTS */
@@ -2129,7 +2129,7 @@ static const unsigned int hscif4_ctrl_pi
 	RCAR_GP_PIN(1, 15), RCAR_GP_PIN(1, 14),
 };
 static const unsigned int hscif4_ctrl_mux[] = {
-	HRTS4_N_MARK, HCTS3_N_MARK,
+	HRTS4_N_MARK, HCTS4_N_MARK,
 };
 
 static const unsigned int hscif4_data_b_pins[] = {
@@ -5188,184 +5188,183 @@ static int r8a7795_pin_to_pocctrl(struct
 #define PU5	0x14
 #define PU6	0x18
 
-static const struct {
-	u16 reg : 11;
-	u16 bit : 5;
-} pullups[] = {
-	[RCAR_GP_PIN(2, 11)] = { PU0, 31 },	/* AVB_PHY_INT */
-	[RCAR_GP_PIN(2, 10)] = { PU0, 30 },	/* AVB_MAGIC */
-	[RCAR_GP_PIN(2,  9)] = { PU0, 29 },	/* AVB_MDC */
+static const struct sh_pfc_bias_info bias_info[] = {
+	{ RCAR_GP_PIN(2, 11), PU0, 31 },	/* AVB_PHY_INT */
+	{ RCAR_GP_PIN(2, 10), PU0, 30 },	/* AVB_MAGIC */
+	{ RCAR_GP_PIN(2,  9), PU0, 29 },	/* AVB_MDC */
 
-	[RCAR_GP_PIN(1, 19)] = { PU1, 31 },	/* A19 */
-	[RCAR_GP_PIN(1, 18)] = { PU1, 30 },	/* A18 */
-	[RCAR_GP_PIN(1, 17)] = { PU1, 29 },	/* A17 */
-	[RCAR_GP_PIN(1, 16)] = { PU1, 28 },	/* A16 */
-	[RCAR_GP_PIN(1, 15)] = { PU1, 27 },	/* A15 */
-	[RCAR_GP_PIN(1, 14)] = { PU1, 26 },	/* A14 */
-	[RCAR_GP_PIN(1, 13)] = { PU1, 25 },	/* A13 */
-	[RCAR_GP_PIN(1, 12)] = { PU1, 24 },	/* A12 */
-	[RCAR_GP_PIN(1, 11)] = { PU1, 23 },	/* A11 */
-	[RCAR_GP_PIN(1, 10)] = { PU1, 22 },	/* A10 */
-	[RCAR_GP_PIN(1,  9)] = { PU1, 21 },	/* A9 */
-	[RCAR_GP_PIN(1,  8)] = { PU1, 20 },	/* A8 */
-	[RCAR_GP_PIN(1,  7)] = { PU1, 19 },	/* A7 */
-	[RCAR_GP_PIN(1,  6)] = { PU1, 18 },	/* A6 */
-	[RCAR_GP_PIN(1,  5)] = { PU1, 17 },	/* A5 */
-	[RCAR_GP_PIN(1,  4)] = { PU1, 16 },	/* A4 */
-	[RCAR_GP_PIN(1,  3)] = { PU1, 15 },	/* A3 */
-	[RCAR_GP_PIN(1,  2)] = { PU1, 14 },	/* A2 */
-	[RCAR_GP_PIN(1,  1)] = { PU1, 13 },	/* A1 */
-	[RCAR_GP_PIN(1,  0)] = { PU1, 12 },	/* A0 */
-	[RCAR_GP_PIN(2,  8)] = { PU1, 11 },	/* PWM2_A */
-	[RCAR_GP_PIN(2,  7)] = { PU1, 10 },	/* PWM1_A */
-	[RCAR_GP_PIN(2,  6)] = { PU1,  9 },	/* PWM0 */
-	[RCAR_GP_PIN(2,  5)] = { PU1,  8 },	/* IRQ5 */
-	[RCAR_GP_PIN(2,  4)] = { PU1,  7 },	/* IRQ4 */
-	[RCAR_GP_PIN(2,  3)] = { PU1,  6 },	/* IRQ3 */
-	[RCAR_GP_PIN(2,  2)] = { PU1,  5 },	/* IRQ2 */
-	[RCAR_GP_PIN(2,  1)] = { PU1,  4 },	/* IRQ1 */
-	[RCAR_GP_PIN(2,  0)] = { PU1,  3 },	/* IRQ0 */
-	[RCAR_GP_PIN(2, 14)] = { PU1,  2 },	/* AVB_AVTP_CAPTURE_A */
-	[RCAR_GP_PIN(2, 13)] = { PU1,  1 },	/* AVB_AVTP_MATCH_A */
-	[RCAR_GP_PIN(2, 12)] = { PU1,  0 },	/* AVB_LINK */
+	{ RCAR_GP_PIN(1, 19), PU1, 31 },	/* A19 */
+	{ RCAR_GP_PIN(1, 18), PU1, 30 },	/* A18 */
+	{ RCAR_GP_PIN(1, 17), PU1, 29 },	/* A17 */
+	{ RCAR_GP_PIN(1, 16), PU1, 28 },	/* A16 */
+	{ RCAR_GP_PIN(1, 15), PU1, 27 },	/* A15 */
+	{ RCAR_GP_PIN(1, 14), PU1, 26 },	/* A14 */
+	{ RCAR_GP_PIN(1, 13), PU1, 25 },	/* A13 */
+	{ RCAR_GP_PIN(1, 12), PU1, 24 },	/* A12 */
+	{ RCAR_GP_PIN(1, 11), PU1, 23 },	/* A11 */
+	{ RCAR_GP_PIN(1, 10), PU1, 22 },	/* A10 */
+	{ RCAR_GP_PIN(1,  9), PU1, 21 },	/* A9 */
+	{ RCAR_GP_PIN(1,  8), PU1, 20 },	/* A8 */
+	{ RCAR_GP_PIN(1,  7), PU1, 19 },	/* A7 */
+	{ RCAR_GP_PIN(1,  6), PU1, 18 },	/* A6 */
+	{ RCAR_GP_PIN(1,  5), PU1, 17 },	/* A5 */
+	{ RCAR_GP_PIN(1,  4), PU1, 16 },	/* A4 */
+	{ RCAR_GP_PIN(1,  3), PU1, 15 },	/* A3 */
+	{ RCAR_GP_PIN(1,  2), PU1, 14 },	/* A2 */
+	{ RCAR_GP_PIN(1,  1), PU1, 13 },	/* A1 */
+	{ RCAR_GP_PIN(1,  0), PU1, 12 },	/* A0 */
+	{ RCAR_GP_PIN(2,  8), PU1, 11 },	/* PWM2_A */
+	{ RCAR_GP_PIN(2,  7), PU1, 10 },	/* PWM1_A */
+	{ RCAR_GP_PIN(2,  6), PU1,  9 },	/* PWM0 */
+	{ RCAR_GP_PIN(2,  5), PU1,  8 },	/* IRQ5 */
+	{ RCAR_GP_PIN(2,  4), PU1,  7 },	/* IRQ4 */
+	{ RCAR_GP_PIN(2,  3), PU1,  6 },	/* IRQ3 */
+	{ RCAR_GP_PIN(2,  2), PU1,  5 },	/* IRQ2 */
+	{ RCAR_GP_PIN(2,  1), PU1,  4 },	/* IRQ1 */
+	{ RCAR_GP_PIN(2,  0), PU1,  3 },	/* IRQ0 */
+	{ RCAR_GP_PIN(2, 14), PU1,  2 },	/* AVB_AVTP_CAPTURE_A */
+	{ RCAR_GP_PIN(2, 13), PU1,  1 },	/* AVB_AVTP_MATCH_A */
+	{ RCAR_GP_PIN(2, 12), PU1,  0 },	/* AVB_LINK */
 
-	[RCAR_GP_PIN(7,  3)] = { PU2, 29 },	/* HDMI1_CEC */
-	[RCAR_GP_PIN(7,  2)] = { PU2, 28 },	/* HDMI0_CEC */
-	[RCAR_GP_PIN(7,  1)] = { PU2, 27 },	/* AVS2 */
-	[RCAR_GP_PIN(7,  0)] = { PU2, 26 },	/* AVS1 */
-	[RCAR_GP_PIN(0, 15)] = { PU2, 25 },	/* D15 */
-	[RCAR_GP_PIN(0, 14)] = { PU2, 24 },	/* D14 */
-	[RCAR_GP_PIN(0, 13)] = { PU2, 23 },	/* D13 */
-	[RCAR_GP_PIN(0, 12)] = { PU2, 22 },	/* D12 */
-	[RCAR_GP_PIN(0, 11)] = { PU2, 21 },	/* D11 */
-	[RCAR_GP_PIN(0, 10)] = { PU2, 20 },	/* D10 */
-	[RCAR_GP_PIN(0,  9)] = { PU2, 19 },	/* D9 */
-	[RCAR_GP_PIN(0,  8)] = { PU2, 18 },	/* D8 */
-	[RCAR_GP_PIN(0,  7)] = { PU2, 17 },	/* D7 */
-	[RCAR_GP_PIN(0,  6)] = { PU2, 16 },	/* D6 */
-	[RCAR_GP_PIN(0,  5)] = { PU2, 15 },	/* D5 */
-	[RCAR_GP_PIN(0,  4)] = { PU2, 14 },	/* D4 */
-	[RCAR_GP_PIN(0,  3)] = { PU2, 13 },	/* D3 */
-	[RCAR_GP_PIN(0,  2)] = { PU2, 12 },	/* D2 */
-	[RCAR_GP_PIN(0,  1)] = { PU2, 11 },	/* D1 */
-	[RCAR_GP_PIN(0,  0)] = { PU2, 10 },	/* D0 */
-	[RCAR_GP_PIN(1, 27)] = { PU2,  8 },	/* EX_WAIT0_A */
-	[RCAR_GP_PIN(1, 26)] = { PU2,  7 },	/* WE1_N */
-	[RCAR_GP_PIN(1, 25)] = { PU2,  6 },	/* WE0_N */
-	[RCAR_GP_PIN(1, 24)] = { PU2,  5 },	/* RD_WR_N */
-	[RCAR_GP_PIN(1, 23)] = { PU2,  4 },	/* RD_N */
-	[RCAR_GP_PIN(1, 22)] = { PU2,  3 },	/* BS_N */
-	[RCAR_GP_PIN(1, 21)] = { PU2,  2 },	/* CS1_N_A26 */
-	[RCAR_GP_PIN(1, 20)] = { PU2,  1 },	/* CS0_N */
+	{ RCAR_GP_PIN(7,  3), PU2, 29 },	/* HDMI1_CEC */
+	{ RCAR_GP_PIN(7,  2), PU2, 28 },	/* HDMI0_CEC */
+	{ RCAR_GP_PIN(7,  1), PU2, 27 },	/* AVS2 */
+	{ RCAR_GP_PIN(7,  0), PU2, 26 },	/* AVS1 */
+	{ RCAR_GP_PIN(0, 15), PU2, 25 },	/* D15 */
+	{ RCAR_GP_PIN(0, 14), PU2, 24 },	/* D14 */
+	{ RCAR_GP_PIN(0, 13), PU2, 23 },	/* D13 */
+	{ RCAR_GP_PIN(0, 12), PU2, 22 },	/* D12 */
+	{ RCAR_GP_PIN(0, 11), PU2, 21 },	/* D11 */
+	{ RCAR_GP_PIN(0, 10), PU2, 20 },	/* D10 */
+	{ RCAR_GP_PIN(0,  9), PU2, 19 },	/* D9 */
+	{ RCAR_GP_PIN(0,  8), PU2, 18 },	/* D8 */
+	{ RCAR_GP_PIN(0,  7), PU2, 17 },	/* D7 */
+	{ RCAR_GP_PIN(0,  6), PU2, 16 },	/* D6 */
+	{ RCAR_GP_PIN(0,  5), PU2, 15 },	/* D5 */
+	{ RCAR_GP_PIN(0,  4), PU2, 14 },	/* D4 */
+	{ RCAR_GP_PIN(0,  3), PU2, 13 },	/* D3 */
+	{ RCAR_GP_PIN(0,  2), PU2, 12 },	/* D2 */
+	{ RCAR_GP_PIN(0,  1), PU2, 11 },	/* D1 */
+	{ RCAR_GP_PIN(0,  0), PU2, 10 },	/* D0 */
+	{ RCAR_GP_PIN(1, 27), PU2,  8 },	/* EX_WAIT0_A */
+	{ RCAR_GP_PIN(1, 26), PU2,  7 },	/* WE1_N */
+	{ RCAR_GP_PIN(1, 25), PU2,  6 },	/* WE0_N */
+	{ RCAR_GP_PIN(1, 24), PU2,  5 },	/* RD_WR_N */
+	{ RCAR_GP_PIN(1, 23), PU2,  4 },	/* RD_N */
+	{ RCAR_GP_PIN(1, 22), PU2,  3 },	/* BS_N */
+	{ RCAR_GP_PIN(1, 21), PU2,  2 },	/* CS1_N_A26 */
+	{ RCAR_GP_PIN(1, 20), PU2,  1 },	/* CS0_N */
 
-	[RCAR_GP_PIN(4,  9)] = { PU3, 31 },	/* SD3_DAT0 */
-	[RCAR_GP_PIN(4,  8)] = { PU3, 30 },	/* SD3_CMD */
-	[RCAR_GP_PIN(4,  7)] = { PU3, 29 },	/* SD3_CLK */
-	[RCAR_GP_PIN(4,  6)] = { PU3, 28 },	/* SD2_DS */
-	[RCAR_GP_PIN(4,  5)] = { PU3, 27 },	/* SD2_DAT3 */
-	[RCAR_GP_PIN(4,  4)] = { PU3, 26 },	/* SD2_DAT2 */
-	[RCAR_GP_PIN(4,  3)] = { PU3, 25 },	/* SD2_DAT1 */
-	[RCAR_GP_PIN(4,  2)] = { PU3, 24 },	/* SD2_DAT0 */
-	[RCAR_GP_PIN(4,  1)] = { PU3, 23 },	/* SD2_CMD */
-	[RCAR_GP_PIN(4,  0)] = { PU3, 22 },	/* SD2_CLK */
-	[RCAR_GP_PIN(3, 11)] = { PU3, 21 },	/* SD1_DAT3 */
-	[RCAR_GP_PIN(3, 10)] = { PU3, 20 },	/* SD1_DAT2 */
-	[RCAR_GP_PIN(3,  9)] = { PU3, 19 },	/* SD1_DAT1 */
-	[RCAR_GP_PIN(3,  8)] = { PU3, 18 },	/* SD1_DAT0 */
-	[RCAR_GP_PIN(3,  7)] = { PU3, 17 },	/* SD1_CMD */
-	[RCAR_GP_PIN(3,  6)] = { PU3, 16 },	/* SD1_CLK */
-	[RCAR_GP_PIN(3,  5)] = { PU3, 15 },	/* SD0_DAT3 */
-	[RCAR_GP_PIN(3,  4)] = { PU3, 14 },	/* SD0_DAT2 */
-	[RCAR_GP_PIN(3,  3)] = { PU3, 13 },	/* SD0_DAT1 */
-	[RCAR_GP_PIN(3,  2)] = { PU3, 12 },	/* SD0_DAT0 */
-	[RCAR_GP_PIN(3,  1)] = { PU3, 11 },	/* SD0_CMD */
-	[RCAR_GP_PIN(3,  0)] = { PU3, 10 },	/* SD0_CLK */
+	{ RCAR_GP_PIN(4,  9), PU3, 31 },	/* SD3_DAT0 */
+	{ RCAR_GP_PIN(4,  8), PU3, 30 },	/* SD3_CMD */
+	{ RCAR_GP_PIN(4,  7), PU3, 29 },	/* SD3_CLK */
+	{ RCAR_GP_PIN(4,  6), PU3, 28 },	/* SD2_DS */
+	{ RCAR_GP_PIN(4,  5), PU3, 27 },	/* SD2_DAT3 */
+	{ RCAR_GP_PIN(4,  4), PU3, 26 },	/* SD2_DAT2 */
+	{ RCAR_GP_PIN(4,  3), PU3, 25 },	/* SD2_DAT1 */
+	{ RCAR_GP_PIN(4,  2), PU3, 24 },	/* SD2_DAT0 */
+	{ RCAR_GP_PIN(4,  1), PU3, 23 },	/* SD2_CMD */
+	{ RCAR_GP_PIN(4,  0), PU3, 22 },	/* SD2_CLK */
+	{ RCAR_GP_PIN(3, 11), PU3, 21 },	/* SD1_DAT3 */
+	{ RCAR_GP_PIN(3, 10), PU3, 20 },	/* SD1_DAT2 */
+	{ RCAR_GP_PIN(3,  9), PU3, 19 },	/* SD1_DAT1 */
+	{ RCAR_GP_PIN(3,  8), PU3, 18 },	/* SD1_DAT0 */
+	{ RCAR_GP_PIN(3,  7), PU3, 17 },	/* SD1_CMD */
+	{ RCAR_GP_PIN(3,  6), PU3, 16 },	/* SD1_CLK */
+	{ RCAR_GP_PIN(3,  5), PU3, 15 },	/* SD0_DAT3 */
+	{ RCAR_GP_PIN(3,  4), PU3, 14 },	/* SD0_DAT2 */
+	{ RCAR_GP_PIN(3,  3), PU3, 13 },	/* SD0_DAT1 */
+	{ RCAR_GP_PIN(3,  2), PU3, 12 },	/* SD0_DAT0 */
+	{ RCAR_GP_PIN(3,  1), PU3, 11 },	/* SD0_CMD */
+	{ RCAR_GP_PIN(3,  0), PU3, 10 },	/* SD0_CLK */
 
-	[RCAR_GP_PIN(5, 19)] = { PU4, 31 },	/* MSIOF0_SS1 */
-	[RCAR_GP_PIN(5, 18)] = { PU4, 30 },	/* MSIOF0_SYNC */
-	[RCAR_GP_PIN(5, 17)] = { PU4, 29 },	/* MSIOF0_SCK */
-	[RCAR_GP_PIN(5, 16)] = { PU4, 28 },	/* HRTS0_N */
-	[RCAR_GP_PIN(5, 15)] = { PU4, 27 },	/* HCTS0_N */
-	[RCAR_GP_PIN(5, 14)] = { PU4, 26 },	/* HTX0 */
-	[RCAR_GP_PIN(5, 13)] = { PU4, 25 },	/* HRX0 */
-	[RCAR_GP_PIN(5, 12)] = { PU4, 24 },	/* HSCK0 */
-	[RCAR_GP_PIN(5, 11)] = { PU4, 23 },	/* RX2_A */
-	[RCAR_GP_PIN(5, 10)] = { PU4, 22 },	/* TX2_A */
-	[RCAR_GP_PIN(5,  9)] = { PU4, 21 },	/* SCK2 */
-	[RCAR_GP_PIN(5,  8)] = { PU4, 20 },	/* RTS1_N_TANS */
-	[RCAR_GP_PIN(5,  7)] = { PU4, 19 },	/* CTS1_N */
-	[RCAR_GP_PIN(5,  6)] = { PU4, 18 },	/* TX1_A */
-	[RCAR_GP_PIN(5,  5)] = { PU4, 17 },	/* RX1_A */
-	[RCAR_GP_PIN(5,  4)] = { PU4, 16 },	/* RTS0_N_TANS */
-	[RCAR_GP_PIN(5,  3)] = { PU4, 15 },	/* CTS0_N */
-	[RCAR_GP_PIN(5,  2)] = { PU4, 14 },	/* TX0 */
-	[RCAR_GP_PIN(5,  1)] = { PU4, 13 },	/* RX0 */
-	[RCAR_GP_PIN(5,  0)] = { PU4, 12 },	/* SCK0 */
-	[RCAR_GP_PIN(3, 15)] = { PU4, 11 },	/* SD1_WP */
-	[RCAR_GP_PIN(3, 14)] = { PU4, 10 },	/* SD1_CD */
-	[RCAR_GP_PIN(3, 13)] = { PU4,  9 },	/* SD0_WP */
-	[RCAR_GP_PIN(3, 12)] = { PU4,  8 },	/* SD0_CD */
-	[RCAR_GP_PIN(4, 17)] = { PU4,  7 },	/* SD3_DS */
-	[RCAR_GP_PIN(4, 16)] = { PU4,  6 },	/* SD3_DAT7 */
-	[RCAR_GP_PIN(4, 15)] = { PU4,  5 },	/* SD3_DAT6 */
-	[RCAR_GP_PIN(4, 14)] = { PU4,  4 },	/* SD3_DAT5 */
-	[RCAR_GP_PIN(4, 13)] = { PU4,  3 },	/* SD3_DAT4 */
-	[RCAR_GP_PIN(4, 12)] = { PU4,  2 },	/* SD3_DAT3 */
-	[RCAR_GP_PIN(4, 11)] = { PU4,  1 },	/* SD3_DAT2 */
-	[RCAR_GP_PIN(4, 10)] = { PU4,  0 },	/* SD3_DAT1 */
+	{ RCAR_GP_PIN(5, 19), PU4, 31 },	/* MSIOF0_SS1 */
+	{ RCAR_GP_PIN(5, 18), PU4, 30 },	/* MSIOF0_SYNC */
+	{ RCAR_GP_PIN(5, 17), PU4, 29 },	/* MSIOF0_SCK */
+	{ RCAR_GP_PIN(5, 16), PU4, 28 },	/* HRTS0_N */
+	{ RCAR_GP_PIN(5, 15), PU4, 27 },	/* HCTS0_N */
+	{ RCAR_GP_PIN(5, 14), PU4, 26 },	/* HTX0 */
+	{ RCAR_GP_PIN(5, 13), PU4, 25 },	/* HRX0 */
+	{ RCAR_GP_PIN(5, 12), PU4, 24 },	/* HSCK0 */
+	{ RCAR_GP_PIN(5, 11), PU4, 23 },	/* RX2_A */
+	{ RCAR_GP_PIN(5, 10), PU4, 22 },	/* TX2_A */
+	{ RCAR_GP_PIN(5,  9), PU4, 21 },	/* SCK2 */
+	{ RCAR_GP_PIN(5,  8), PU4, 20 },	/* RTS1_N_TANS */
+	{ RCAR_GP_PIN(5,  7), PU4, 19 },	/* CTS1_N */
+	{ RCAR_GP_PIN(5,  6), PU4, 18 },	/* TX1_A */
+	{ RCAR_GP_PIN(5,  5), PU4, 17 },	/* RX1_A */
+	{ RCAR_GP_PIN(5,  4), PU4, 16 },	/* RTS0_N_TANS */
+	{ RCAR_GP_PIN(5,  3), PU4, 15 },	/* CTS0_N */
+	{ RCAR_GP_PIN(5,  2), PU4, 14 },	/* TX0 */
+	{ RCAR_GP_PIN(5,  1), PU4, 13 },	/* RX0 */
+	{ RCAR_GP_PIN(5,  0), PU4, 12 },	/* SCK0 */
+	{ RCAR_GP_PIN(3, 15), PU4, 11 },	/* SD1_WP */
+	{ RCAR_GP_PIN(3, 14), PU4, 10 },	/* SD1_CD */
+	{ RCAR_GP_PIN(3, 13), PU4,  9 },	/* SD0_WP */
+	{ RCAR_GP_PIN(3, 12), PU4,  8 },	/* SD0_CD */
+	{ RCAR_GP_PIN(4, 17), PU4,  7 },	/* SD3_DS */
+	{ RCAR_GP_PIN(4, 16), PU4,  6 },	/* SD3_DAT7 */
+	{ RCAR_GP_PIN(4, 15), PU4,  5 },	/* SD3_DAT6 */
+	{ RCAR_GP_PIN(4, 14), PU4,  4 },	/* SD3_DAT5 */
+	{ RCAR_GP_PIN(4, 13), PU4,  3 },	/* SD3_DAT4 */
+	{ RCAR_GP_PIN(4, 12), PU4,  2 },	/* SD3_DAT3 */
+	{ RCAR_GP_PIN(4, 11), PU4,  1 },	/* SD3_DAT2 */
+	{ RCAR_GP_PIN(4, 10), PU4,  0 },	/* SD3_DAT1 */
 
-	[RCAR_GP_PIN(6, 24)] = { PU5, 31 },	/* USB0_PWEN */
-	[RCAR_GP_PIN(6, 23)] = { PU5, 30 },	/* AUDIO_CLKB_B */
-	[RCAR_GP_PIN(6, 22)] = { PU5, 29 },	/* AUDIO_CLKA_A */
-	[RCAR_GP_PIN(6, 21)] = { PU5, 28 },	/* SSI_SDATA9_A */
-	[RCAR_GP_PIN(6, 20)] = { PU5, 27 },	/* SSI_SDATA8 */
-	[RCAR_GP_PIN(6, 19)] = { PU5, 26 },	/* SSI_SDATA7 */
-	[RCAR_GP_PIN(6, 18)] = { PU5, 25 },	/* SSI_WS78 */
-	[RCAR_GP_PIN(6, 17)] = { PU5, 24 },	/* SSI_SCK78 */
-	[RCAR_GP_PIN(6, 16)] = { PU5, 23 },	/* SSI_SDATA6 */
-	[RCAR_GP_PIN(6, 15)] = { PU5, 22 },	/* SSI_WS6 */
-	[RCAR_GP_PIN(6, 14)] = { PU5, 21 },	/* SSI_SCK6 */
-	[RCAR_GP_PIN(6, 13)] = { PU5, 20 },	/* SSI_SDATA5 */
-	[RCAR_GP_PIN(6, 12)] = { PU5, 19 },	/* SSI_WS5 */
-	[RCAR_GP_PIN(6, 11)] = { PU5, 18 },	/* SSI_SCK5 */
-	[RCAR_GP_PIN(6, 10)] = { PU5, 17 },	/* SSI_SDATA4 */
-	[RCAR_GP_PIN(6,  9)] = { PU5, 16 },	/* SSI_WS4 */
-	[RCAR_GP_PIN(6,  8)] = { PU5, 15 },	/* SSI_SCK4 */
-	[RCAR_GP_PIN(6,  7)] = { PU5, 14 },	/* SSI_SDATA3 */
-	[RCAR_GP_PIN(6,  6)] = { PU5, 13 },	/* SSI_WS34 */
-	[RCAR_GP_PIN(6,  5)] = { PU5, 12 },	/* SSI_SCK34 */
-	[RCAR_GP_PIN(6,  4)] = { PU5, 11 },	/* SSI_SDATA2_A */
-	[RCAR_GP_PIN(6,  3)] = { PU5, 10 },	/* SSI_SDATA1_A */
-	[RCAR_GP_PIN(6,  2)] = { PU5,  9 },	/* SSI_SDATA0 */
-	[RCAR_GP_PIN(6,  1)] = { PU5,  8 },	/* SSI_WS01239 */
-	[RCAR_GP_PIN(6,  0)] = { PU5,  7 },	/* SSI_SCK01239 */
-	[RCAR_GP_PIN(5, 25)] = { PU5,  5 },	/* MLB_DAT */
-	[RCAR_GP_PIN(5, 24)] = { PU5,  4 },	/* MLB_SIG */
-	[RCAR_GP_PIN(5, 23)] = { PU5,  3 },	/* MLB_CLK */
-	[RCAR_GP_PIN(5, 22)] = { PU5,  2 },	/* MSIOF0_RXD */
-	[RCAR_GP_PIN(5, 21)] = { PU5,  1 },	/* MSIOF0_SS2 */
-	[RCAR_GP_PIN(5, 20)] = { PU5,  0 },	/* MSIOF0_TXD */
+	{ RCAR_GP_PIN(6, 24), PU5, 31 },	/* USB0_PWEN */
+	{ RCAR_GP_PIN(6, 23), PU5, 30 },	/* AUDIO_CLKB_B */
+	{ RCAR_GP_PIN(6, 22), PU5, 29 },	/* AUDIO_CLKA_A */
+	{ RCAR_GP_PIN(6, 21), PU5, 28 },	/* SSI_SDATA9_A */
+	{ RCAR_GP_PIN(6, 20), PU5, 27 },	/* SSI_SDATA8 */
+	{ RCAR_GP_PIN(6, 19), PU5, 26 },	/* SSI_SDATA7 */
+	{ RCAR_GP_PIN(6, 18), PU5, 25 },	/* SSI_WS78 */
+	{ RCAR_GP_PIN(6, 17), PU5, 24 },	/* SSI_SCK78 */
+	{ RCAR_GP_PIN(6, 16), PU5, 23 },	/* SSI_SDATA6 */
+	{ RCAR_GP_PIN(6, 15), PU5, 22 },	/* SSI_WS6 */
+	{ RCAR_GP_PIN(6, 14), PU5, 21 },	/* SSI_SCK6 */
+	{ RCAR_GP_PIN(6, 13), PU5, 20 },	/* SSI_SDATA5 */
+	{ RCAR_GP_PIN(6, 12), PU5, 19 },	/* SSI_WS5 */
+	{ RCAR_GP_PIN(6, 11), PU5, 18 },	/* SSI_SCK5 */
+	{ RCAR_GP_PIN(6, 10), PU5, 17 },	/* SSI_SDATA4 */
+	{ RCAR_GP_PIN(6,  9), PU5, 16 },	/* SSI_WS4 */
+	{ RCAR_GP_PIN(6,  8), PU5, 15 },	/* SSI_SCK4 */
+	{ RCAR_GP_PIN(6,  7), PU5, 14 },	/* SSI_SDATA3 */
+	{ RCAR_GP_PIN(6,  6), PU5, 13 },	/* SSI_WS34 */
+	{ RCAR_GP_PIN(6,  5), PU5, 12 },	/* SSI_SCK34 */
+	{ RCAR_GP_PIN(6,  4), PU5, 11 },	/* SSI_SDATA2_A */
+	{ RCAR_GP_PIN(6,  3), PU5, 10 },	/* SSI_SDATA1_A */
+	{ RCAR_GP_PIN(6,  2), PU5,  9 },	/* SSI_SDATA0 */
+	{ RCAR_GP_PIN(6,  1), PU5,  8 },	/* SSI_WS01239 */
+	{ RCAR_GP_PIN(6,  0), PU5,  7 },	/* SSI_SCK01239 */
+	{ RCAR_GP_PIN(5, 25), PU5,  5 },	/* MLB_DAT */
+	{ RCAR_GP_PIN(5, 24), PU5,  4 },	/* MLB_SIG */
+	{ RCAR_GP_PIN(5, 23), PU5,  3 },	/* MLB_CLK */
+	{ RCAR_GP_PIN(5, 22), PU5,  2 },	/* MSIOF0_RXD */
+	{ RCAR_GP_PIN(5, 21), PU5,  1 },	/* MSIOF0_SS2 */
+	{ RCAR_GP_PIN(5, 20), PU5,  0 },	/* MSIOF0_TXD */
 
-	[RCAR_GP_PIN(6, 31)] = { PU6,  6 },	/* USB31_OVC */
-	[RCAR_GP_PIN(6, 30)] = { PU6,  5 },	/* USB31_PWEN */
-	[RCAR_GP_PIN(6, 29)] = { PU6,  4 },	/* USB30_OVC */
-	[RCAR_GP_PIN(6, 28)] = { PU6,  3 },	/* USB30_PWEN */
-	[RCAR_GP_PIN(6, 27)] = { PU6,  2 },	/* USB1_OVC */
-	[RCAR_GP_PIN(6, 26)] = { PU6,  1 },	/* USB1_PWEN */
-	[RCAR_GP_PIN(6, 25)] = { PU6,  0 },	/* USB0_OVC */
+	{ RCAR_GP_PIN(6, 31), PU6,  6 },	/* USB31_OVC */
+	{ RCAR_GP_PIN(6, 30), PU6,  5 },	/* USB31_PWEN */
+	{ RCAR_GP_PIN(6, 29), PU6,  4 },	/* USB30_OVC */
+	{ RCAR_GP_PIN(6, 28), PU6,  3 },	/* USB30_PWEN */
+	{ RCAR_GP_PIN(6, 27), PU6,  2 },	/* USB1_OVC */
+	{ RCAR_GP_PIN(6, 26), PU6,  1 },	/* USB1_PWEN */
+	{ RCAR_GP_PIN(6, 25), PU6,  0 },	/* USB0_OVC */
 };
 
 static unsigned int r8a7795_pinmux_get_bias(struct sh_pfc *pfc,
 					    unsigned int pin)
 {
+	const struct sh_pfc_bias_info *info;
 	u32 reg;
 	u32 bit;
 
-	if (WARN_ON_ONCE(!pullups[pin].reg))
+	info = sh_pfc_pin_to_bias_info(bias_info, ARRAY_SIZE(bias_info), pin);
+	if (!info)
 		return PIN_CONFIG_BIAS_DISABLE;
 
-	reg = pullups[pin].reg;
-	bit = BIT(pullups[pin].bit);
+	reg = info->reg;
+	bit = BIT(info->bit);
 
 	if (sh_pfc_read_reg(pfc, PUEN + reg, 32) & bit) {
 		if (sh_pfc_read_reg(pfc, PUD + reg, 32) & bit)
@@ -5379,15 +5378,17 @@ static unsigned int r8a7795_pinmux_get_b
 static void r8a7795_pinmux_set_bias(struct sh_pfc *pfc, unsigned int pin,
 				   unsigned int bias)
 {
+	const struct sh_pfc_bias_info *info;
 	u32 enable, updown;
 	u32 reg;
 	u32 bit;
 
-	if (WARN_ON_ONCE(!pullups[pin].reg))
+	info = sh_pfc_pin_to_bias_info(bias_info, ARRAY_SIZE(bias_info), pin);
+	if (!info)
 		return;
 
-	reg = pullups[pin].reg;
-	bit = BIT(pullups[pin].bit);
+	reg = info->reg;
+	bit = BIT(info->bit);
 
 	enable = sh_pfc_read_reg(pfc, PUEN + reg, 32) & ~bit;
 	if (bias != PIN_CONFIG_BIAS_DISABLE)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pinctrl.c linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pinctrl.c
--- linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/pinctrl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/pinctrl.c	2017-09-27 08:40:05.000000000 -0400
@@ -570,7 +570,8 @@ static bool sh_pfc_pinconf_validate(stru
 
 	switch (param) {
 	case PIN_CONFIG_BIAS_DISABLE:
-		return true;
+		return pin->configs &
+			(SH_PFC_PIN_CFG_PULL_UP | SH_PFC_PIN_CFG_PULL_DOWN);
 
 	case PIN_CONFIG_BIAS_PULL_UP:
 		return pin->configs & SH_PFC_PIN_CFG_PULL_UP;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/sh_pfc.h linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/sh_pfc.h
--- linux-libre-4.9-gnu/drivers/pinctrl/sh-pfc/sh_pfc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sh-pfc/sh_pfc.h	2017-09-27 08:40:05.000000000 -0400
@@ -189,6 +189,12 @@ struct sh_pfc_window {
 	unsigned long size;
 };
 
+struct sh_pfc_bias_info {
+	u16 pin;
+	u16 reg : 11;
+	u16 bit : 5;
+};
+
 struct sh_pfc_pin_range;
 
 struct sh_pfc {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/stm32/pinctrl-stm32.c linux-libre-4.9.52-gnu/drivers/pinctrl/stm32/pinctrl-stm32.c
--- linux-libre-4.9-gnu/drivers/pinctrl/stm32/pinctrl-stm32.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/stm32/pinctrl-stm32.c	2017-09-27 08:40:05.000000000 -0400
@@ -798,7 +798,7 @@ static int stm32_pconf_parse_conf(struct
 		break;
 	case PIN_CONFIG_OUTPUT:
 		__stm32_gpio_set(bank, offset, arg);
-		ret = stm32_pmx_gpio_set_direction(pctldev, NULL, pin, false);
+		ret = stm32_pmx_gpio_set_direction(pctldev, range, pin, false);
 		break;
 	default:
 		ret = -EINVAL;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c linux-libre-4.9.52-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c
--- linux-libre-4.9-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c	2017-09-27 08:40:05.000000000 -0400
@@ -811,6 +811,7 @@ static const struct sunxi_desc_pin sun4i
 		  SUNXI_FUNCTION(0x2, "lcd1"),		/* D16 */
 		  SUNXI_FUNCTION(0x3, "pata"),		/* ATAD12 */
 		  SUNXI_FUNCTION(0x4, "keypad"),	/* IN6 */
+		  SUNXI_FUNCTION(0x5, "sim"),		/* DET */
 		  SUNXI_FUNCTION_IRQ(0x6, 16),		/* EINT16 */
 		  SUNXI_FUNCTION(0x7, "csi1")),		/* D16 */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(H, 17),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c linux-libre-4.9.52-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c
--- linux-libre-4.9-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/sunxi/pinctrl-sun8i-a83t.c	2017-09-27 08:40:05.000000000 -0400
@@ -394,7 +394,7 @@ static const struct sunxi_desc_pin sun8i
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 18),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out"),
-		  SUNXI_FUNCTION(0x3, "owa")),		/* DOUT */
+		  SUNXI_FUNCTION(0x3, "spdif")),	/* DOUT */
 	SUNXI_PIN(SUNXI_PINCTRL_PIN(E, 19),
 		  SUNXI_FUNCTION(0x0, "gpio_in"),
 		  SUNXI_FUNCTION(0x1, "gpio_out")),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c linux-libre-4.9.52-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c
--- linux-libre-4.9-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c	2017-09-27 08:40:05.000000000 -0400
@@ -508,57 +508,71 @@ static const unsigned usb1_pins[] = {48,
 static const int usb1_muxvals[] = {0, 0};
 static const unsigned usb2_pins[] = {50, 51};
 static const int usb2_muxvals[] = {0, 0};
-static const unsigned port_range_pins[] = {
+static const unsigned port_range0_pins[] = {
 	159, 160, 161, 162, 163, 164, 165, 166,		/* PORT0x */
 	0, 1, 2, 3, 4, 5, 6, 7,				/* PORT1x */
 	8, 9, 10, 11, 12, 13, 14, 15,			/* PORT2x */
-	16, 17, 18, -1, -1, -1, -1, -1,			/* PORT3x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT4x */
-	-1, -1, -1, 46, 47, 48, 49, 50,			/* PORT5x */
-	51, -1, -1, 54, 55, 56, 57, 58,			/* PORT6x */
+	16, 17, 18,					/* PORT30-32 */
+};
+static const int port_range0_muxvals[] = {
+	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT0x */
+	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT1x */
+	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT2x */
+	15, 15, 15,					/* PORT30-32 */
+};
+static const unsigned port_range1_pins[] = {
+	46, 47, 48, 49, 50,				/* PORT53-57 */
+	51,						/* PORT60 */
+};
+static const int port_range1_muxvals[] = {
+	15, 15, 15, 15, 15,				/* PORT53-57 */
+	15,						/* PORT60 */
+};
+static const unsigned port_range2_pins[] = {
+	54, 55, 56, 57, 58,				/* PORT63-67 */
 	59, 60, 69, 70, 71, 72, 73, 74,			/* PORT7x */
 	75, 76, 77, 78, 79, 80, 81, 82,			/* PORT8x */
 	83, 84, 85, 86, 87, 88, 89, 90,			/* PORT9x */
 	91, 92, 93, 94, 95, 96, 97, 98,			/* PORT10x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT11x */
-	99, 100, 101, 102, 103, 104, 105, 106,		/* PORT12x */
-	107, 108, 109, 110, 111, 112, 113, 114,		/* PORT13x */
-	115, 116, 117, 118, 119, 120, 121, 122,		/* PORT14x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT15x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT16x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT17x */
-	61, 62, 63, 64, 65, 66, 67, 68,			/* PORT18x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT19x */
-	123, 124, 125, 126, 127, 128, 129, 130,		/* PORT20x */
-	131, 132, 133, 134, 135, 136, 137, 138,		/* PORT21x */
-	139, 140, 141, 142, -1, -1, -1, -1,		/* PORT22x */
-	147, 148, 149, 150, 151, 152, 153, 154,		/* PORT23x */
-	155, 156, 157, 143, 144, 145, 146, 158,		/* PORT24x */
 };
-static const int port_range_muxvals[] = {
-	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT0x */
-	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT1x */
-	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT2x */
-	15, 15, 15, -1, -1, -1, -1, -1,			/* PORT3x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT4x */
-	-1, -1, -1, 15, 15, 15, 15, 15,			/* PORT5x */
-	15, -1, -1, 15, 15, 15, 15, 15,			/* PORT6x */
+static const int port_range2_muxvals[] = {
+	15, 15, 15, 15, 15,				/* PORT63-67 */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT7x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT8x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT9x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT10x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT11x */
+};
+static const unsigned port_range3_pins[] = {
+	99, 100, 101, 102, 103, 104, 105, 106,		/* PORT12x */
+	107, 108, 109, 110, 111, 112, 113, 114,		/* PORT13x */
+	115, 116, 117, 118, 119, 120, 121, 122,		/* PORT14x */
+};
+static const int port_range3_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT12x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT13x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT14x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT15x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT16x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT17x */
+};
+static const unsigned port_range4_pins[] = {
+	61, 62, 63, 64, 65, 66, 67, 68,			/* PORT18x */
+};
+static const int port_range4_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT18x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT19x */
+};
+static const unsigned port_range5_pins[] = {
+	123, 124, 125, 126, 127, 128, 129, 130,		/* PORT20x */
+	131, 132, 133, 134, 135, 136, 137, 138,		/* PORT21x */
+	139, 140, 141, 142,				/* PORT220-223 */
+};
+static const int port_range5_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT20x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT21x */
-	15, 15, 15, 15, -1, -1, -1, -1,			/* PORT22x */
+	15, 15, 15, 15,					/* PORT220-223 */
+};
+static const unsigned port_range6_pins[] = {
+	147, 148, 149, 150, 151, 152, 153, 154,		/* PORT23x */
+	155, 156, 157, 143, 144, 145, 146, 158,		/* PORT24x */
+};
+static const int port_range6_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT23x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT24x */
 };
@@ -607,147 +621,153 @@ static const struct uniphier_pinctrl_gro
 	UNIPHIER_PINCTRL_GROUP(usb0),
 	UNIPHIER_PINCTRL_GROUP(usb1),
 	UNIPHIER_PINCTRL_GROUP(usb2),
-	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range0),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range1),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range2),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range3),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range4),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range5),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range6),
 	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_IRQ(xirq),
 	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_IRQ(xirq_alternatives),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port00, port_range, 0),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port01, port_range, 1),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port02, port_range, 2),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port03, port_range, 3),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port04, port_range, 4),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port05, port_range, 5),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port06, port_range, 6),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port07, port_range, 7),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port10, port_range, 8),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port11, port_range, 9),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port12, port_range, 10),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port13, port_range, 11),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port14, port_range, 12),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port15, port_range, 13),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port16, port_range, 14),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port17, port_range, 15),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port20, port_range, 16),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port21, port_range, 17),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port22, port_range, 18),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port23, port_range, 19),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port24, port_range, 20),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port25, port_range, 21),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port26, port_range, 22),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port27, port_range, 23),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port30, port_range, 24),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port31, port_range, 25),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port32, port_range, 26),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port53, port_range, 43),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port54, port_range, 44),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port55, port_range, 45),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port56, port_range, 46),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port57, port_range, 47),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port60, port_range, 48),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port63, port_range, 51),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port64, port_range, 52),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port65, port_range, 53),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port66, port_range, 54),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port67, port_range, 55),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port70, port_range, 56),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port71, port_range, 57),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port72, port_range, 58),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port73, port_range, 59),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port74, port_range, 60),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port75, port_range, 61),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port76, port_range, 62),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port77, port_range, 63),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port80, port_range, 64),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port81, port_range, 65),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port82, port_range, 66),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port83, port_range, 67),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port84, port_range, 68),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port85, port_range, 69),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port86, port_range, 70),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port87, port_range, 71),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port90, port_range, 72),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port91, port_range, 73),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port92, port_range, 74),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port93, port_range, 75),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port94, port_range, 76),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port95, port_range, 77),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port96, port_range, 78),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port97, port_range, 79),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port100, port_range, 80),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port101, port_range, 81),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port102, port_range, 82),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port103, port_range, 83),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port104, port_range, 84),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port105, port_range, 85),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port106, port_range, 86),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port107, port_range, 87),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port120, port_range, 96),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port121, port_range, 97),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port122, port_range, 98),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port123, port_range, 99),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port124, port_range, 100),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port125, port_range, 101),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port126, port_range, 102),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port127, port_range, 103),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port130, port_range, 104),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port131, port_range, 105),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port132, port_range, 106),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port133, port_range, 107),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port134, port_range, 108),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port135, port_range, 109),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port136, port_range, 110),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port137, port_range, 111),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port140, port_range, 112),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port141, port_range, 113),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port142, port_range, 114),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port143, port_range, 115),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port144, port_range, 116),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port145, port_range, 117),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port146, port_range, 118),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port147, port_range, 119),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port180, port_range, 144),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port181, port_range, 145),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port182, port_range, 146),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port183, port_range, 147),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port184, port_range, 148),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port185, port_range, 149),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port186, port_range, 150),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port187, port_range, 151),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port200, port_range, 160),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port201, port_range, 161),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port202, port_range, 162),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port203, port_range, 163),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port204, port_range, 164),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port205, port_range, 165),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port206, port_range, 166),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port207, port_range, 167),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port210, port_range, 168),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port211, port_range, 169),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port212, port_range, 170),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port213, port_range, 171),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port214, port_range, 172),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port215, port_range, 173),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port216, port_range, 174),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port217, port_range, 175),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port220, port_range, 176),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port221, port_range, 177),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port222, port_range, 178),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port223, port_range, 179),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port230, port_range, 184),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port231, port_range, 185),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port232, port_range, 186),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port233, port_range, 187),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port234, port_range, 188),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port235, port_range, 189),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port236, port_range, 190),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port237, port_range, 191),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port240, port_range, 192),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port241, port_range, 193),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port242, port_range, 194),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port243, port_range, 195),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port244, port_range, 196),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port245, port_range, 197),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port246, port_range, 198),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port247, port_range, 199),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port00, port_range0, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port01, port_range0, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port02, port_range0, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port03, port_range0, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port04, port_range0, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port05, port_range0, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port06, port_range0, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port07, port_range0, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port10, port_range0, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port11, port_range0, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port12, port_range0, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port13, port_range0, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port14, port_range0, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port15, port_range0, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port16, port_range0, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port17, port_range0, 15),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port20, port_range0, 16),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port21, port_range0, 17),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port22, port_range0, 18),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port23, port_range0, 19),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port24, port_range0, 20),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port25, port_range0, 21),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port26, port_range0, 22),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port27, port_range0, 23),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port30, port_range0, 24),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port31, port_range0, 25),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port32, port_range0, 26),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port53, port_range1, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port54, port_range1, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port55, port_range1, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port56, port_range1, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port57, port_range1, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port60, port_range1, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port63, port_range2, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port64, port_range2, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port65, port_range2, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port66, port_range2, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port67, port_range2, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port70, port_range2, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port71, port_range2, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port72, port_range2, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port73, port_range2, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port74, port_range2, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port75, port_range2, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port76, port_range2, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port77, port_range2, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port80, port_range2, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port81, port_range2, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port82, port_range2, 15),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port83, port_range2, 16),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port84, port_range2, 17),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port85, port_range2, 18),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port86, port_range2, 19),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port87, port_range2, 20),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port90, port_range2, 21),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port91, port_range2, 22),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port92, port_range2, 23),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port93, port_range2, 24),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port94, port_range2, 25),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port95, port_range2, 26),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port96, port_range2, 27),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port97, port_range2, 28),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port100, port_range2, 29),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port101, port_range2, 30),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port102, port_range2, 31),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port103, port_range2, 32),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port104, port_range2, 33),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port105, port_range2, 34),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port106, port_range2, 35),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port107, port_range2, 36),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port120, port_range3, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port121, port_range3, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port122, port_range3, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port123, port_range3, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port124, port_range3, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port125, port_range3, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port126, port_range3, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port127, port_range3, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port130, port_range3, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port131, port_range3, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port132, port_range3, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port133, port_range3, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port134, port_range3, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port135, port_range3, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port136, port_range3, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port137, port_range3, 15),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port140, port_range3, 16),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port141, port_range3, 17),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port142, port_range3, 18),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port143, port_range3, 19),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port144, port_range3, 20),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port145, port_range3, 21),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port146, port_range3, 22),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port147, port_range3, 23),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port180, port_range4, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port181, port_range4, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port182, port_range4, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port183, port_range4, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port184, port_range4, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port185, port_range4, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port186, port_range4, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port187, port_range4, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port200, port_range5, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port201, port_range5, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port202, port_range5, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port203, port_range5, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port204, port_range5, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port205, port_range5, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port206, port_range5, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port207, port_range5, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port210, port_range5, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port211, port_range5, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port212, port_range5, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port213, port_range5, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port214, port_range5, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port215, port_range5, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port216, port_range5, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port217, port_range5, 15),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port220, port_range5, 16),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port221, port_range5, 17),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port222, port_range5, 18),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port223, port_range5, 19),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port230, port_range6, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port231, port_range6, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port232, port_range6, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port233, port_range6, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port234, port_range6, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port235, port_range6, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port236, port_range6, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port237, port_range6, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port240, port_range6, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port241, port_range6, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port242, port_range6, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port243, port_range6, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port244, port_range6, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port245, port_range6, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port246, port_range6, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port247, port_range6, 15),
 	UNIPHIER_PINCTRL_GROUP_SINGLE(xirq0, xirq, 0),
 	UNIPHIER_PINCTRL_GROUP_SINGLE(xirq1, xirq, 1),
 	UNIPHIER_PINCTRL_GROUP_SINGLE(xirq2, xirq, 2),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c linux-libre-4.9.52-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c
--- linux-libre-4.9-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pinctrl/uniphier/pinctrl-uniphier-ld20.c	2017-09-27 08:40:05.000000000 -0400
@@ -561,7 +561,7 @@ static const int ether_rgmii_muxvals[] =
 					  0, 0, 0, 0};
 static const unsigned ether_rmii_pins[] = {30, 31, 32, 33, 34, 35, 36, 37, 39,
 					   41, 42, 45};
-static const int ether_rmii_muxvals[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
+static const int ether_rmii_muxvals[] = {0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1};
 static const unsigned i2c0_pins[] = {63, 64};
 static const int i2c0_muxvals[] = {0, 0};
 static const unsigned i2c1_pins[] = {65, 66};
@@ -597,7 +597,7 @@ static const unsigned usb2_pins[] = {50,
 static const int usb2_muxvals[] = {0, 0};
 static const unsigned usb3_pins[] = {52, 53};
 static const int usb3_muxvals[] = {0, 0};
-static const unsigned port_range_pins[] = {
+static const unsigned port_range0_pins[] = {
 	168, 169, 170, 171, 172, 173, 174, 175,		/* PORT0x */
 	0, 1, 2, 3, 4, 5, 6, 7,				/* PORT1x */
 	8, 9, 10, 11, 12, 13, 14, 15,			/* PORT2x */
@@ -609,23 +609,8 @@ static const unsigned port_range_pins[]
 	75, 76, 77, 78, 79, 80, 81, 82,			/* PORT8x */
 	83, 84, 85, 86, 87, 88, 89, 90,			/* PORT9x */
 	91, 92, 93, 94, 95, 96, 97, 98,			/* PORT10x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT11x */
-	99, 100, 101, 102, 103, 104, 105, 106,		/* PORT12x */
-	107, 108, 109, 110, 111, 112, 113, 114,		/* PORT13x */
-	115, 116, 117, 118, 119, 120, 121, 122,		/* PORT14x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT15x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT16x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT17x */
-	61, 62, 63, 64, 65, 66, 67, 68,			/* PORT18x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT19x */
-	123, 124, 125, 126, 127, 128, 129, 130,		/* PORT20x */
-	131, 132, 133, 134, 135, 136, 137, 138,		/* PORT21x */
-	139, 140, 141, 142, 143, 144, 145, 146,		/* PORT22x */
-	147, 148, 149, 150, 151, 152, 153, 154,		/* PORT23x */
-	155, 156, 157, 158, 159, 160, 161, 162,		/* PORT24x */
-	163, 164, 165, 166, 167,			/* PORT25x */
 };
-static const int port_range_muxvals[] = {
+static const int port_range0_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT0x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT1x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT2x */
@@ -637,21 +622,38 @@ static const int port_range_muxvals[] =
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT8x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT9x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT10x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT11x */
+};
+static const unsigned port_range1_pins[] = {
+	99, 100, 101, 102, 103, 104, 105, 106,		/* PORT12x */
+	107, 108, 109, 110, 111, 112, 113, 114,		/* PORT13x */
+	115, 116, 117, 118, 119, 120, 121, 122,		/* PORT14x */
+};
+static const int port_range1_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT12x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT13x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT14x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT15x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT16x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT17x */
+};
+static const unsigned port_range2_pins[] = {
+	61, 62, 63, 64, 65, 66, 67, 68,			/* PORT18x */
+};
+static const int port_range2_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT18x */
-	-1, -1, -1, -1, -1, -1, -1, -1,			/* PORT19x */
+};
+static const unsigned port_range3_pins[] = {
+	123, 124, 125, 126, 127, 128, 129, 130,		/* PORT20x */
+	131, 132, 133, 134, 135, 136, 137, 138,		/* PORT21x */
+	139, 140, 141, 142, 143, 144, 145, 146,		/* PORT22x */
+	147, 148, 149, 150, 151, 152, 153, 154,		/* PORT23x */
+	155, 156, 157, 158, 159, 160, 161, 162,		/* PORT24x */
+	163, 164, 165, 166, 167,			/* PORT250-254 */
+};
+static const int port_range3_muxvals[] = {
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT20x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT21x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT22x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT23x */
 	15, 15, 15, 15, 15, 15, 15, 15,			/* PORT24x */
-	15, 15, 15, 15, 15,				/* PORT25x */
+	15, 15, 15, 15, 15,				/* PORT250-254 */
 };
 static const unsigned xirq_pins[] = {
 	149, 150, 151, 152, 153, 154, 155, 156,		/* XIRQ0-7 */
@@ -695,174 +697,177 @@ static const struct uniphier_pinctrl_gro
 	UNIPHIER_PINCTRL_GROUP(usb1),
 	UNIPHIER_PINCTRL_GROUP(usb2),
 	UNIPHIER_PINCTRL_GROUP(usb3),
-	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range0),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range1),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range2),
+	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(port_range3),
 	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_IRQ(xirq),
 	UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_IRQ(xirq_alternatives),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port00, port_range, 0),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port01, port_range, 1),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port02, port_range, 2),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port03, port_range, 3),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port04, port_range, 4),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port05, port_range, 5),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port06, port_range, 6),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port07, port_range, 7),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port10, port_range, 8),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port11, port_range, 9),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port12, port_range, 10),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port13, port_range, 11),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port14, port_range, 12),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port15, port_range, 13),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port16, port_range, 14),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port17, port_range, 15),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port20, port_range, 16),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port21, port_range, 17),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port22, port_range, 18),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port23, port_range, 19),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port24, port_range, 20),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port25, port_range, 21),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port26, port_range, 22),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port27, port_range, 23),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port30, port_range, 24),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port31, port_range, 25),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port32, port_range, 26),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port33, port_range, 27),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port34, port_range, 28),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port35, port_range, 29),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port36, port_range, 30),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port37, port_range, 31),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port40, port_range, 32),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port41, port_range, 33),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port42, port_range, 34),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port43, port_range, 35),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port44, port_range, 36),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port45, port_range, 37),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port46, port_range, 38),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port47, port_range, 39),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port50, port_range, 40),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port51, port_range, 41),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port52, port_range, 42),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port53, port_range, 43),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port54, port_range, 44),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port55, port_range, 45),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port56, port_range, 46),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port57, port_range, 47),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port60, port_range, 48),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port61, port_range, 49),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port62, port_range, 50),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port63, port_range, 51),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port64, port_range, 52),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port65, port_range, 53),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port66, port_range, 54),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port67, port_range, 55),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port70, port_range, 56),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port71, port_range, 57),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port72, port_range, 58),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port73, port_range, 59),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port74, port_range, 60),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port75, port_range, 61),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port76, port_range, 62),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port77, port_range, 63),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port80, port_range, 64),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port81, port_range, 65),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port82, port_range, 66),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port83, port_range, 67),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port84, port_range, 68),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port85, port_range, 69),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port86, port_range, 70),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port87, port_range, 71),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port90, port_range, 72),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port91, port_range, 73),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port92, port_range, 74),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port93, port_range, 75),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port94, port_range, 76),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port95, port_range, 77),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port96, port_range, 78),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port97, port_range, 79),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port100, port_range, 80),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port101, port_range, 81),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port102, port_range, 82),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port103, port_range, 83),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port104, port_range, 84),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port105, port_range, 85),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port106, port_range, 86),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port107, port_range, 87),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port120, port_range, 96),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port121, port_range, 97),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port122, port_range, 98),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port123, port_range, 99),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port124, port_range, 100),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port125, port_range, 101),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port126, port_range, 102),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port127, port_range, 103),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port130, port_range, 104),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port131, port_range, 105),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port132, port_range, 106),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port133, port_range, 107),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port134, port_range, 108),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port135, port_range, 109),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port136, port_range, 110),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port137, port_range, 111),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port140, port_range, 112),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port141, port_range, 113),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port142, port_range, 114),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port143, port_range, 115),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port144, port_range, 116),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port145, port_range, 117),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port146, port_range, 118),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port147, port_range, 119),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port180, port_range, 144),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port181, port_range, 145),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port182, port_range, 146),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port183, port_range, 147),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port184, port_range, 148),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port185, port_range, 149),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port186, port_range, 150),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port187, port_range, 151),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port200, port_range, 160),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port201, port_range, 161),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port202, port_range, 162),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port203, port_range, 163),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port204, port_range, 164),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port205, port_range, 165),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port206, port_range, 166),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port207, port_range, 167),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port210, port_range, 168),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port211, port_range, 169),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port212, port_range, 170),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port213, port_range, 171),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port214, port_range, 172),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port215, port_range, 173),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port216, port_range, 174),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port217, port_range, 175),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port220, port_range, 176),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port221, port_range, 177),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port222, port_range, 178),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port223, port_range, 179),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port224, port_range, 180),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port225, port_range, 181),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port226, port_range, 182),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port227, port_range, 183),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port230, port_range, 184),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port231, port_range, 185),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port232, port_range, 186),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port233, port_range, 187),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port234, port_range, 188),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port235, port_range, 189),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port236, port_range, 190),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port237, port_range, 191),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port240, port_range, 192),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port241, port_range, 193),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port242, port_range, 194),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port243, port_range, 195),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port244, port_range, 196),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port245, port_range, 197),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port246, port_range, 198),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port247, port_range, 199),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port250, port_range, 200),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port251, port_range, 201),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port252, port_range, 202),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port253, port_range, 203),
-	UNIPHIER_PINCTRL_GROUP_SINGLE(port254, port_range, 204),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port00, port_range0, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port01, port_range0, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port02, port_range0, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port03, port_range0, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port04, port_range0, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port05, port_range0, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port06, port_range0, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port07, port_range0, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port10, port_range0, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port11, port_range0, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port12, port_range0, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port13, port_range0, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port14, port_range0, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port15, port_range0, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port16, port_range0, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port17, port_range0, 15),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port20, port_range0, 16),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port21, port_range0, 17),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port22, port_range0, 18),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port23, port_range0, 19),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port24, port_range0, 20),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port25, port_range0, 21),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port26, port_range0, 22),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port27, port_range0, 23),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port30, port_range0, 24),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port31, port_range0, 25),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port32, port_range0, 26),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port33, port_range0, 27),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port34, port_range0, 28),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port35, port_range0, 29),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port36, port_range0, 30),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port37, port_range0, 31),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port40, port_range0, 32),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port41, port_range0, 33),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port42, port_range0, 34),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port43, port_range0, 35),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port44, port_range0, 36),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port45, port_range0, 37),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port46, port_range0, 38),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port47, port_range0, 39),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port50, port_range0, 40),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port51, port_range0, 41),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port52, port_range0, 42),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port53, port_range0, 43),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port54, port_range0, 44),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port55, port_range0, 45),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port56, port_range0, 46),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port57, port_range0, 47),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port60, port_range0, 48),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port61, port_range0, 49),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port62, port_range0, 50),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port63, port_range0, 51),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port64, port_range0, 52),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port65, port_range0, 53),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port66, port_range0, 54),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port67, port_range0, 55),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port70, port_range0, 56),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port71, port_range0, 57),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port72, port_range0, 58),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port73, port_range0, 59),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port74, port_range0, 60),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port75, port_range0, 61),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port76, port_range0, 62),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port77, port_range0, 63),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port80, port_range0, 64),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port81, port_range0, 65),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port82, port_range0, 66),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port83, port_range0, 67),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port84, port_range0, 68),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port85, port_range0, 69),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port86, port_range0, 70),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port87, port_range0, 71),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port90, port_range0, 72),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port91, port_range0, 73),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port92, port_range0, 74),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port93, port_range0, 75),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port94, port_range0, 76),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port95, port_range0, 77),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port96, port_range0, 78),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port97, port_range0, 79),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port100, port_range0, 80),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port101, port_range0, 81),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port102, port_range0, 82),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port103, port_range0, 83),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port104, port_range0, 84),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port105, port_range0, 85),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port106, port_range0, 86),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port107, port_range0, 87),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port120, port_range1, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port121, port_range1, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port122, port_range1, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port123, port_range1, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port124, port_range1, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port125, port_range1, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port126, port_range1, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port127, port_range1, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port130, port_range1, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port131, port_range1, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port132, port_range1, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port133, port_range1, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port134, port_range1, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port135, port_range1, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port136, port_range1, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port137, port_range1, 15),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port140, port_range1, 16),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port141, port_range1, 17),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port142, port_range1, 18),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port143, port_range1, 19),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port144, port_range1, 20),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port145, port_range1, 21),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port146, port_range1, 22),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port147, port_range1, 23),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port180, port_range2, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port181, port_range2, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port182, port_range2, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port183, port_range2, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port184, port_range2, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port185, port_range2, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port186, port_range2, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port187, port_range2, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port200, port_range3, 0),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port201, port_range3, 1),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port202, port_range3, 2),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port203, port_range3, 3),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port204, port_range3, 4),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port205, port_range3, 5),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port206, port_range3, 6),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port207, port_range3, 7),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port210, port_range3, 8),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port211, port_range3, 9),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port212, port_range3, 10),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port213, port_range3, 11),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port214, port_range3, 12),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port215, port_range3, 13),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port216, port_range3, 14),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port217, port_range3, 15),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port220, port_range3, 16),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port221, port_range3, 17),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port222, port_range3, 18),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port223, port_range3, 19),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port224, port_range3, 20),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port225, port_range3, 21),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port226, port_range3, 22),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port227, port_range3, 23),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port230, port_range3, 24),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port231, port_range3, 25),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port232, port_range3, 26),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port233, port_range3, 27),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port234, port_range3, 28),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port235, port_range3, 29),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port236, port_range3, 30),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port237, port_range3, 31),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port240, port_range3, 32),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port241, port_range3, 33),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port242, port_range3, 34),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port243, port_range3, 35),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port244, port_range3, 36),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port245, port_range3, 37),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port246, port_range3, 38),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port247, port_range3, 39),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port250, port_range3, 40),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port251, port_range3, 41),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port252, port_range3, 42),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port253, port_range3, 43),
+	UNIPHIER_PINCTRL_GROUP_SINGLE(port254, port_range3, 44),
 	UNIPHIER_PINCTRL_GROUP_SINGLE(xirq0, xirq, 0),
 	UNIPHIER_PINCTRL_GROUP_SINGLE(xirq1, xirq, 1),
 	UNIPHIER_PINCTRL_GROUP_SINGLE(xirq2, xirq, 2),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/goldfish/pdev_bus.c linux-libre-4.9.52-gnu/drivers/platform/goldfish/pdev_bus.c
--- linux-libre-4.9-gnu/drivers/platform/goldfish/pdev_bus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/goldfish/pdev_bus.c	2017-09-27 08:40:05.000000000 -0400
@@ -157,23 +157,26 @@ static int goldfish_new_pdev(void)
 static irqreturn_t goldfish_pdev_bus_interrupt(int irq, void *dev_id)
 {
 	irqreturn_t ret = IRQ_NONE;
+
 	while (1) {
 		u32 op = readl(pdev_bus_base + PDEV_BUS_OP);
-		switch (op) {
-		case PDEV_BUS_OP_DONE:
-			return IRQ_NONE;
 
+		switch (op) {
 		case PDEV_BUS_OP_REMOVE_DEV:
 			goldfish_pdev_remove();
+			ret = IRQ_HANDLED;
 			break;
 
 		case PDEV_BUS_OP_ADD_DEV:
 			goldfish_new_pdev();
+			ret = IRQ_HANDLED;
 			break;
+
+		case PDEV_BUS_OP_DONE:
+		default:
+			return ret;
 		}
-		ret = IRQ_HANDLED;
 	}
-	return ret;
 }
 
 static int goldfish_pdev_bus_probe(struct platform_device *pdev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/x86/acer-wmi.c linux-libre-4.9.52-gnu/drivers/platform/x86/acer-wmi.c
--- linux-libre-4.9-gnu/drivers/platform/x86/acer-wmi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/x86/acer-wmi.c	2017-09-27 08:40:05.000000000 -0400
@@ -355,6 +355,32 @@ static const struct dmi_system_id acer_b
 	{}
 };
 
+static const struct dmi_system_id amw0_whitelist[] __initconst = {
+	{
+		.ident = "Acer",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+		},
+	},
+	{
+		.ident = "Gateway",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Gateway"),
+		},
+	},
+	{
+		.ident = "Packard Bell",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"),
+		},
+	},
+	{}
+};
+
+/*
+ * This quirk table is only for Acer/Gateway/Packard Bell family
+ * that those machines are supported by acer-wmi driver.
+ */
 static const struct dmi_system_id acer_quirks[] __initconst = {
 	{
 		.callback = dmi_matched,
@@ -464,6 +490,17 @@ static const struct dmi_system_id acer_q
 		},
 		.driver_data = &quirk_acer_travelmate_2490,
 	},
+	{}
+};
+
+/*
+ * This quirk list is for those non-acer machines that have AMW0_GUID1
+ * but supported by acer-wmi in past days. Keeping this quirk list here
+ * is only for backward compatible. Please do not add new machine to
+ * here anymore. Those non-acer machines should be supported by
+ * appropriate wmi drivers.
+ */
+static const struct dmi_system_id non_acer_quirks[] __initconst = {
 	{
 		.callback = dmi_matched,
 		.ident = "Fujitsu Siemens Amilo Li 1718",
@@ -598,6 +635,7 @@ static void __init find_quirks(void)
 {
 	if (!force_series) {
 		dmi_check_system(acer_quirks);
+		dmi_check_system(non_acer_quirks);
 	} else if (force_series == 2490) {
 		quirks = &quirk_acer_travelmate_2490;
 	}
@@ -1808,11 +1846,24 @@ static int __init acer_wmi_enable_lm(voi
 	return status;
 }
 
+#define ACER_WMID_ACCEL_HID	"BST0001"
+
 static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
 						void *ctx, void **retval)
 {
+	struct acpi_device *dev;
+
+	if (!strcmp(ctx, "SENR")) {
+		if (acpi_bus_get_device(ah, &dev))
+			return AE_OK;
+		if (!strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
+			return AE_OK;
+	} else
+		return AE_OK;
+
 	*(acpi_handle *)retval = ah;
-	return AE_OK;
+
+	return AE_CTRL_TERMINATE;
 }
 
 static int __init acer_wmi_get_handle(const char *name, const char *prop,
@@ -1839,7 +1890,7 @@ static int __init acer_wmi_accel_setup(v
 {
 	int err;
 
-	err = acer_wmi_get_handle("SENR", "BST0001", &gsensor_handle);
+	err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
 	if (err)
 		return err;
 
@@ -2108,6 +2159,24 @@ static int __init acer_wmi_init(void)
 	find_quirks();
 
 	/*
+	 * The AMW0_GUID1 wmi is not only found on Acer family but also other
+	 * machines like Lenovo, Fujitsu and Medion. In the past days,
+	 * acer-wmi driver handled those non-Acer machines by quirks list.
+	 * But actually acer-wmi driver was loaded on any machines that have
+	 * AMW0_GUID1. This behavior is strange because those machines should
+	 * be supported by appropriate wmi drivers. e.g. fujitsu-laptop,
+	 * ideapad-laptop. So, here checks the machine that has AMW0_GUID1
+	 * should be in Acer/Gateway/Packard Bell white list, or it's already
+	 * in the past quirk list.
+	 */
+	if (wmi_has_guid(AMW0_GUID1) &&
+	    !dmi_check_system(amw0_whitelist) &&
+	    quirks == &quirk_unknown) {
+		pr_err("Unsupported machine has AMW0_GUID1, unable to load\n");
+		return -ENODEV;
+	}
+
+	/*
 	 * Detect which ACPI-WMI interface we're using.
 	 */
 	if (wmi_has_guid(AMW0_GUID1) && wmi_has_guid(WMID_GUID1))
@@ -2177,10 +2246,11 @@ static int __init acer_wmi_init(void)
 		err = acer_wmi_input_setup();
 		if (err)
 			return err;
+		err = acer_wmi_accel_setup();
+		if (err)
+			return err;
 	}
 
-	acer_wmi_accel_setup();
-
 	err = platform_driver_register(&acer_platform_driver);
 	if (err) {
 		pr_err("Unable to register platform driver\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/x86/asus-nb-wmi.c linux-libre-4.9.52-gnu/drivers/platform/x86/asus-nb-wmi.c
--- linux-libre-4.9-gnu/drivers/platform/x86/asus-nb-wmi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/x86/asus-nb-wmi.c	2017-09-27 08:40:05.000000000 -0400
@@ -116,6 +116,10 @@ static struct quirk_entry quirk_asus_ux3
 	.wmi_backlight_native = true,
 };
 
+static struct quirk_entry quirk_asus_x550lb = {
+	.xusb2pr = 0x01D9,
+};
+
 static int dmi_matched(const struct dmi_system_id *dmi)
 {
 	quirks = dmi->driver_data;
@@ -175,6 +179,15 @@ static const struct dmi_system_id asus_q
 	},
 	{
 		.callback = dmi_matched,
+		.ident = "ASUSTeK COMPUTER INC. X45U",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X45U"),
+		},
+		.driver_data = &quirk_asus_wapf4,
+	},
+	{
+		.callback = dmi_matched,
 		.ident = "ASUSTeK COMPUTER INC. X456UA",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
@@ -398,6 +411,15 @@ static const struct dmi_system_id asus_q
 		},
 		.driver_data = &quirk_asus_ux303ub,
 	},
+	{
+		.callback = dmi_matched,
+		.ident = "ASUSTeK COMPUTER INC. X550LB",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X550LB"),
+		},
+		.driver_data = &quirk_asus_x550lb,
+	},
 	{},
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/x86/asus-wmi.c linux-libre-4.9.52-gnu/drivers/platform/x86/asus-wmi.c
--- linux-libre-4.9-gnu/drivers/platform/x86/asus-wmi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/x86/asus-wmi.c	2017-09-27 08:40:05.000000000 -0400
@@ -156,6 +156,11 @@ MODULE_LICENSE("GPL");
 #define ASUS_FAN_CTRL_MANUAL		1
 #define ASUS_FAN_CTRL_AUTO		2
 
+#define USB_INTEL_XUSB2PR		0xD0
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI	0x9c31
+
+static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
+
 struct bios_args {
 	u32 arg0;
 	u32 arg1;
@@ -1080,6 +1085,29 @@ exit:
 	return result;
 }
 
+static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
+{
+	struct pci_dev *xhci_pdev;
+	u32 orig_ports_available;
+	u32 ports_available = asus->driver->quirks->xusb2pr;
+
+	xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
+			PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
+			NULL);
+
+	if (!xhci_pdev)
+		return;
+
+	pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
+				&orig_ports_available);
+
+	pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
+				cpu_to_le32(ports_available));
+
+	pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
+			orig_ports_available, ports_available);
+}
+
 /*
  * Hwmon device
  */
@@ -2025,6 +2053,16 @@ static int asus_wmi_fan_init(struct asus
 	return 0;
 }
 
+static bool ashs_present(void)
+{
+	int i = 0;
+	while (ashs_ids[i]) {
+		if (acpi_dev_found(ashs_ids[i++]))
+			return true;
+	}
+	return false;
+}
+
 /*
  * WMI Driver
  */
@@ -2069,6 +2107,13 @@ static int asus_wmi_add(struct platform_
 	if (err)
 		goto fail_leds;
 
+	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
+	if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
+		asus->driver->wlan_ctrl_by_user = 1;
+
+	if (asus->driver->wlan_ctrl_by_user && ashs_present())
+		asus->driver->quirks->no_rfkill = 1;
+
 	if (!asus->driver->quirks->no_rfkill) {
 		err = asus_wmi_rfkill_init(asus);
 		if (err)
@@ -2087,6 +2132,9 @@ static int asus_wmi_add(struct platform_
 	if (asus->driver->quirks->wmi_backlight_native)
 		acpi_video_set_dmi_backlight_type(acpi_backlight_native);
 
+	if (asus->driver->quirks->xusb2pr)
+		asus_wmi_set_xusb2pr(asus);
+
 	if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
 		err = asus_wmi_backlight_init(asus);
 		if (err && err != -ENODEV)
@@ -2105,10 +2153,6 @@ static int asus_wmi_add(struct platform_
 	if (err)
 		goto fail_debugfs;
 
-	asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
-	if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
-		asus->driver->wlan_ctrl_by_user = 1;
-
 	return 0;
 
 fail_debugfs:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/x86/asus-wmi.h linux-libre-4.9.52-gnu/drivers/platform/x86/asus-wmi.h
--- linux-libre-4.9-gnu/drivers/platform/x86/asus-wmi.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/x86/asus-wmi.h	2017-09-27 08:40:05.000000000 -0400
@@ -53,6 +53,7 @@ struct quirk_entry {
 	 * and let the ACPI interrupt to send out the key event.
 	 */
 	int no_display_toggle;
+	u32 xusb2pr;
 
 	bool (*i8042_filter)(unsigned char data, unsigned char str,
 			     struct serio *serio);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/x86/fujitsu-laptop.c linux-libre-4.9.52-gnu/drivers/platform/x86/fujitsu-laptop.c
--- linux-libre-4.9-gnu/drivers/platform/x86/fujitsu-laptop.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/x86/fujitsu-laptop.c	2017-09-27 08:40:05.000000000 -0400
@@ -177,43 +177,43 @@ static void acpi_fujitsu_hotkey_notify(s
 
 #if IS_ENABLED(CONFIG_LEDS_CLASS)
 static enum led_brightness logolamp_get(struct led_classdev *cdev);
-static void logolamp_set(struct led_classdev *cdev,
+static int logolamp_set(struct led_classdev *cdev,
 			       enum led_brightness brightness);
 
 static struct led_classdev logolamp_led = {
  .name = "fujitsu::logolamp",
  .brightness_get = logolamp_get,
- .brightness_set = logolamp_set
+ .brightness_set_blocking = logolamp_set
 };
 
 static enum led_brightness kblamps_get(struct led_classdev *cdev);
-static void kblamps_set(struct led_classdev *cdev,
+static int kblamps_set(struct led_classdev *cdev,
 			       enum led_brightness brightness);
 
 static struct led_classdev kblamps_led = {
  .name = "fujitsu::kblamps",
  .brightness_get = kblamps_get,
- .brightness_set = kblamps_set
+ .brightness_set_blocking = kblamps_set
 };
 
 static enum led_brightness radio_led_get(struct led_classdev *cdev);
-static void radio_led_set(struct led_classdev *cdev,
+static int radio_led_set(struct led_classdev *cdev,
 			       enum led_brightness brightness);
 
 static struct led_classdev radio_led = {
  .name = "fujitsu::radio_led",
  .brightness_get = radio_led_get,
- .brightness_set = radio_led_set
+ .brightness_set_blocking = radio_led_set
 };
 
 static enum led_brightness eco_led_get(struct led_classdev *cdev);
-static void eco_led_set(struct led_classdev *cdev,
+static int eco_led_set(struct led_classdev *cdev,
 			       enum led_brightness brightness);
 
 static struct led_classdev eco_led = {
  .name = "fujitsu::eco_led",
  .brightness_get = eco_led_get,
- .brightness_set = eco_led_set
+ .brightness_set_blocking = eco_led_set
 };
 #endif
 
@@ -267,48 +267,48 @@ static int call_fext_func(int cmd, int a
 #if IS_ENABLED(CONFIG_LEDS_CLASS)
 /* LED class callbacks */
 
-static void logolamp_set(struct led_classdev *cdev,
+static int logolamp_set(struct led_classdev *cdev,
 			       enum led_brightness brightness)
 {
 	if (brightness >= LED_FULL) {
 		call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
-		call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
+		return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
 	} else if (brightness >= LED_HALF) {
 		call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
-		call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
+		return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
 	} else {
-		call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
+		return call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
 	}
 }
 
-static void kblamps_set(struct led_classdev *cdev,
+static int kblamps_set(struct led_classdev *cdev,
 			       enum led_brightness brightness)
 {
 	if (brightness >= LED_FULL)
-		call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
+		return call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
 	else
-		call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
+		return call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
 }
 
-static void radio_led_set(struct led_classdev *cdev,
+static int radio_led_set(struct led_classdev *cdev,
 				enum led_brightness brightness)
 {
 	if (brightness >= LED_FULL)
-		call_fext_func(FUNC_RFKILL, 0x5, RADIO_LED_ON, RADIO_LED_ON);
+		return call_fext_func(FUNC_RFKILL, 0x5, RADIO_LED_ON, RADIO_LED_ON);
 	else
-		call_fext_func(FUNC_RFKILL, 0x5, RADIO_LED_ON, 0x0);
+		return call_fext_func(FUNC_RFKILL, 0x5, RADIO_LED_ON, 0x0);
 }
 
-static void eco_led_set(struct led_classdev *cdev,
+static int eco_led_set(struct led_classdev *cdev,
 				enum led_brightness brightness)
 {
 	int curr;
 
 	curr = call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0);
 	if (brightness >= LED_FULL)
-		call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr | ECO_LED_ON);
+		return call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr | ECO_LED_ON);
 	else
-		call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr & ~ECO_LED_ON);
+		return call_fext_func(FUNC_LEDS, 0x1, ECO_LED, curr & ~ECO_LED_ON);
 }
 
 static enum led_brightness logolamp_get(struct led_classdev *cdev)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/x86/ideapad-laptop.c linux-libre-4.9.52-gnu/drivers/platform/x86/ideapad-laptop.c
--- linux-libre-4.9-gnu/drivers/platform/x86/ideapad-laptop.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/x86/ideapad-laptop.c	2017-09-27 08:40:05.000000000 -0400
@@ -813,6 +813,7 @@ static void ideapad_acpi_notify(acpi_han
 			case 8:
 			case 7:
 			case 6:
+			case 1:
 				ideapad_input_report(priv, vpc_bit);
 				break;
 			case 5:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/platform/x86/intel_mid_powerbtn.c linux-libre-4.9.52-gnu/drivers/platform/x86/intel_mid_powerbtn.c
--- linux-libre-4.9-gnu/drivers/platform/x86/intel_mid_powerbtn.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/platform/x86/intel_mid_powerbtn.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,7 +77,7 @@ static int mfld_pb_probe(struct platform
 
 	input_set_capability(input, EV_KEY, KEY_POWER);
 
-	error = request_threaded_irq(irq, NULL, mfld_pb_isr, 0,
+	error = request_threaded_irq(irq, NULL, mfld_pb_isr, IRQF_ONESHOT,
 				     DRIVER_NAME, input);
 	if (error) {
 		dev_err(&pdev->dev, "Unable to request irq %d for mfld power"
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/power/reset/at91-poweroff.c linux-libre-4.9.52-gnu/drivers/power/reset/at91-poweroff.c
--- linux-libre-4.9-gnu/drivers/power/reset/at91-poweroff.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/power/reset/at91-poweroff.c	2017-09-27 08:40:05.000000000 -0400
@@ -14,9 +14,12 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/platform_device.h>
 #include <linux/printk.h>
 
+#include <soc/at91/at91sam9_ddrsdr.h>
+
 #define AT91_SHDW_CR	0x00		/* Shut Down Control Register */
 #define AT91_SHDW_SHDW		BIT(0)			/* Shut Down command */
 #define AT91_SHDW_KEY		(0xa5 << 24)		/* KEY Password */
@@ -50,6 +53,7 @@ static const char *shdwc_wakeup_modes[]
 
 static void __iomem *at91_shdwc_base;
 static struct clk *sclk;
+static void __iomem *mpddrc_base;
 
 static void __init at91_wakeup_status(void)
 {
@@ -73,6 +77,29 @@ static void at91_poweroff(void)
 	writel(AT91_SHDW_KEY | AT91_SHDW_SHDW, at91_shdwc_base + AT91_SHDW_CR);
 }
 
+static void at91_lpddr_poweroff(void)
+{
+	asm volatile(
+		/* Align to cache lines */
+		".balign 32\n\t"
+
+		/* Ensure AT91_SHDW_CR is in the TLB by reading it */
+		"	ldr	r6, [%2, #" __stringify(AT91_SHDW_CR) "]\n\t"
+
+		/* Power down SDRAM0 */
+		"	str	%1, [%0, #" __stringify(AT91_DDRSDRC_LPR) "]\n\t"
+		/* Shutdown CPU */
+		"	str	%3, [%2, #" __stringify(AT91_SHDW_CR) "]\n\t"
+
+		"	b	.\n\t"
+		:
+		: "r" (mpddrc_base),
+		  "r" cpu_to_le32(AT91_DDRSDRC_LPDDR2_PWOFF),
+		  "r" (at91_shdwc_base),
+		  "r" cpu_to_le32(AT91_SHDW_KEY | AT91_SHDW_SHDW)
+		: "r0");
+}
+
 static int at91_poweroff_get_wakeup_mode(struct device_node *np)
 {
 	const char *pm;
@@ -124,6 +151,8 @@ static void at91_poweroff_dt_set_wakeup_
 static int __init at91_poweroff_probe(struct platform_device *pdev)
 {
 	struct resource *res;
+	struct device_node *np;
+	u32 ddr_type;
 	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -150,12 +179,30 @@ static int __init at91_poweroff_probe(st
 
 	pm_power_off = at91_poweroff;
 
+	np = of_find_compatible_node(NULL, NULL, "atmel,sama5d3-ddramc");
+	if (!np)
+		return 0;
+
+	mpddrc_base = of_iomap(np, 0);
+	of_node_put(np);
+
+	if (!mpddrc_base)
+		return 0;
+
+	ddr_type = readl(mpddrc_base + AT91_DDRSDRC_MDR) & AT91_DDRSDRC_MD;
+	if ((ddr_type == AT91_DDRSDRC_MD_LPDDR2) ||
+	    (ddr_type == AT91_DDRSDRC_MD_LPDDR3))
+		pm_power_off = at91_lpddr_poweroff;
+	else
+		iounmap(mpddrc_base);
+
 	return 0;
 }
 
 static int __exit at91_poweroff_remove(struct platform_device *pdev)
 {
-	if (pm_power_off == at91_poweroff)
+	if (pm_power_off == at91_poweroff ||
+	    pm_power_off == at91_lpddr_poweroff)
 		pm_power_off = NULL;
 
 	clk_disable_unprepare(sclk);
@@ -163,6 +210,11 @@ static int __exit at91_poweroff_remove(s
 	return 0;
 }
 
+static const struct of_device_id at91_ramc_of_match[] = {
+	{ .compatible = "atmel,sama5d3-ddramc", },
+	{ /* sentinel */ }
+};
+
 static const struct of_device_id at91_poweroff_of_match[] = {
 	{ .compatible = "atmel,at91sam9260-shdwc", },
 	{ .compatible = "atmel,at91sam9rl-shdwc", },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/power/reset/at91-sama5d2_shdwc.c linux-libre-4.9.52-gnu/drivers/power/reset/at91-sama5d2_shdwc.c
--- linux-libre-4.9-gnu/drivers/power/reset/at91-sama5d2_shdwc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/power/reset/at91-sama5d2_shdwc.c	2017-09-27 08:40:05.000000000 -0400
@@ -22,9 +22,12 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/platform_device.h>
 #include <linux/printk.h>
 
+#include <soc/at91/at91sam9_ddrsdr.h>
+
 #define SLOW_CLOCK_FREQ	32768
 
 #define AT91_SHDW_CR	0x00		/* Shut Down Control Register */
@@ -75,6 +78,7 @@ struct shdwc {
  */
 static struct shdwc *at91_shdwc;
 static struct clk *sclk;
+static void __iomem *mpddrc_base;
 
 static const unsigned long long sdwc_dbc_period[] = {
 	0, 3, 32, 512, 4096, 32768,
@@ -108,6 +112,29 @@ static void at91_poweroff(void)
 	       at91_shdwc->at91_shdwc_base + AT91_SHDW_CR);
 }
 
+static void at91_lpddr_poweroff(void)
+{
+	asm volatile(
+		/* Align to cache lines */
+		".balign 32\n\t"
+
+		/* Ensure AT91_SHDW_CR is in the TLB by reading it */
+		"	ldr	r6, [%2, #" __stringify(AT91_SHDW_CR) "]\n\t"
+
+		/* Power down SDRAM0 */
+		"	str	%1, [%0, #" __stringify(AT91_DDRSDRC_LPR) "]\n\t"
+		/* Shutdown CPU */
+		"	str	%3, [%2, #" __stringify(AT91_SHDW_CR) "]\n\t"
+
+		"	b	.\n\t"
+		:
+		: "r" (mpddrc_base),
+		  "r" cpu_to_le32(AT91_DDRSDRC_LPDDR2_PWOFF),
+		  "r" (at91_shdwc->at91_shdwc_base),
+		  "r" cpu_to_le32(AT91_SHDW_KEY | AT91_SHDW_SHDW)
+		: "r0");
+}
+
 static u32 at91_shdwc_debouncer_value(struct platform_device *pdev,
 				      u32 in_period_us)
 {
@@ -212,6 +239,8 @@ static int __init at91_shdwc_probe(struc
 {
 	struct resource *res;
 	const struct of_device_id *match;
+	struct device_node *np;
+	u32 ddr_type;
 	int ret;
 
 	if (!pdev->dev.of_node)
@@ -249,6 +278,23 @@ static int __init at91_shdwc_probe(struc
 
 	pm_power_off = at91_poweroff;
 
+	np = of_find_compatible_node(NULL, NULL, "atmel,sama5d3-ddramc");
+	if (!np)
+		return 0;
+
+	mpddrc_base = of_iomap(np, 0);
+	of_node_put(np);
+
+	if (!mpddrc_base)
+		return 0;
+
+	ddr_type = readl(mpddrc_base + AT91_DDRSDRC_MDR) & AT91_DDRSDRC_MD;
+	if ((ddr_type == AT91_DDRSDRC_MD_LPDDR2) ||
+	    (ddr_type == AT91_DDRSDRC_MD_LPDDR3))
+		pm_power_off = at91_lpddr_poweroff;
+	else
+		iounmap(mpddrc_base);
+
 	return 0;
 }
 
@@ -256,7 +302,8 @@ static int __exit at91_shdwc_remove(stru
 {
 	struct shdwc *shdw = platform_get_drvdata(pdev);
 
-	if (pm_power_off == at91_poweroff)
+	if (pm_power_off == at91_poweroff ||
+	    pm_power_off == at91_lpddr_poweroff)
 		pm_power_off = NULL;
 
 	/* Reset values to disable wake-up features  */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/power/reset/Kconfig linux-libre-4.9.52-gnu/drivers/power/reset/Kconfig
--- linux-libre-4.9-gnu/drivers/power/reset/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/power/reset/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -32,7 +32,7 @@ config POWER_RESET_AT91_RESET
 
 config POWER_RESET_AT91_SAMA5D2_SHDWC
 	tristate "Atmel AT91 SAMA5D2-Compatible shutdown controller driver"
-	depends on ARCH_AT91 || COMPILE_TEST
+	depends on ARCH_AT91
 	default SOC_SAMA5
 	help
 	  This driver supports the alternate shutdown controller for some Atmel
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/power/supply/bq24190_charger.c linux-libre-4.9.52-gnu/drivers/power/supply/bq24190_charger.c
--- linux-libre-4.9-gnu/drivers/power/supply/bq24190_charger.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/power/supply/bq24190_charger.c	2017-09-27 08:40:05.000000000 -0400
@@ -144,10 +144,7 @@
  * so the first read after a fault returns the latched value and subsequent
  * reads return the current value.  In order to return the fault status
  * to the user, have the interrupt handler save the reg's value and retrieve
- * it in the appropriate health/status routine.  Each routine has its own
- * flag indicating whether it should use the value stored by the last run
- * of the interrupt handler or do an actual reg read.  That way each routine
- * can report back whatever fault may have occured.
+ * it in the appropriate health/status routine.
  */
 struct bq24190_dev_info {
 	struct i2c_client		*client;
@@ -159,10 +156,6 @@ struct bq24190_dev_info {
 	unsigned int			gpio_int;
 	unsigned int			irq;
 	struct mutex			f_reg_lock;
-	bool				first_time;
-	bool				charger_health_valid;
-	bool				battery_health_valid;
-	bool				battery_status_valid;
 	u8				f_reg;
 	u8				ss_reg;
 	u8				watchdog;
@@ -636,21 +629,11 @@ static int bq24190_charger_get_health(st
 		union power_supply_propval *val)
 {
 	u8 v;
-	int health, ret;
+	int health;
 
 	mutex_lock(&bdi->f_reg_lock);
-
-	if (bdi->charger_health_valid) {
-		v = bdi->f_reg;
-		bdi->charger_health_valid = false;
-		mutex_unlock(&bdi->f_reg_lock);
-	} else {
-		mutex_unlock(&bdi->f_reg_lock);
-
-		ret = bq24190_read(bdi, BQ24190_REG_F, &v);
-		if (ret < 0)
-			return ret;
-	}
+	v = bdi->f_reg;
+	mutex_unlock(&bdi->f_reg_lock);
 
 	if (v & BQ24190_REG_F_BOOST_FAULT_MASK) {
 		/*
@@ -937,18 +920,8 @@ static int bq24190_battery_get_status(st
 	int status, ret;
 
 	mutex_lock(&bdi->f_reg_lock);
-
-	if (bdi->battery_status_valid) {
-		chrg_fault = bdi->f_reg;
-		bdi->battery_status_valid = false;
-		mutex_unlock(&bdi->f_reg_lock);
-	} else {
-		mutex_unlock(&bdi->f_reg_lock);
-
-		ret = bq24190_read(bdi, BQ24190_REG_F, &chrg_fault);
-		if (ret < 0)
-			return ret;
-	}
+	chrg_fault = bdi->f_reg;
+	mutex_unlock(&bdi->f_reg_lock);
 
 	chrg_fault &= BQ24190_REG_F_CHRG_FAULT_MASK;
 	chrg_fault >>= BQ24190_REG_F_CHRG_FAULT_SHIFT;
@@ -996,21 +969,11 @@ static int bq24190_battery_get_health(st
 		union power_supply_propval *val)
 {
 	u8 v;
-	int health, ret;
+	int health;
 
 	mutex_lock(&bdi->f_reg_lock);
-
-	if (bdi->battery_health_valid) {
-		v = bdi->f_reg;
-		bdi->battery_health_valid = false;
-		mutex_unlock(&bdi->f_reg_lock);
-	} else {
-		mutex_unlock(&bdi->f_reg_lock);
-
-		ret = bq24190_read(bdi, BQ24190_REG_F, &v);
-		if (ret < 0)
-			return ret;
-	}
+	v = bdi->f_reg;
+	mutex_unlock(&bdi->f_reg_lock);
 
 	if (v & BQ24190_REG_F_BAT_FAULT_MASK) {
 		health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
@@ -1141,7 +1104,7 @@ static int bq24190_battery_set_property(
 
 	dev_dbg(bdi->dev, "prop: %d\n", psp);
 
-	pm_runtime_put_sync(bdi->dev);
+	pm_runtime_get_sync(bdi->dev);
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_ONLINE:
@@ -1197,9 +1160,12 @@ static const struct power_supply_desc bq
 static irqreturn_t bq24190_irq_handler_thread(int irq, void *data)
 {
 	struct bq24190_dev_info *bdi = data;
-	bool alert_userspace = false;
+	const u8 battery_mask_ss = BQ24190_REG_SS_CHRG_STAT_MASK;
+	const u8 battery_mask_f = BQ24190_REG_F_BAT_FAULT_MASK
+				| BQ24190_REG_F_NTC_FAULT_MASK;
+	bool alert_charger = false, alert_battery = false;
 	u8 ss_reg = 0, f_reg = 0;
-	int ret;
+	int i, ret;
 
 	pm_runtime_get_sync(bdi->dev);
 
@@ -1209,6 +1175,32 @@ static irqreturn_t bq24190_irq_handler_t
 		goto out;
 	}
 
+	i = 0;
+	do {
+		ret = bq24190_read(bdi, BQ24190_REG_F, &f_reg);
+		if (ret < 0) {
+			dev_err(bdi->dev, "Can't read F reg: %d\n", ret);
+			goto out;
+		}
+	} while (f_reg && ++i < 2);
+
+	if (f_reg != bdi->f_reg) {
+		dev_info(bdi->dev,
+			"Fault: boost %d, charge %d, battery %d, ntc %d\n",
+			!!(f_reg & BQ24190_REG_F_BOOST_FAULT_MASK),
+			!!(f_reg & BQ24190_REG_F_CHRG_FAULT_MASK),
+			!!(f_reg & BQ24190_REG_F_BAT_FAULT_MASK),
+			!!(f_reg & BQ24190_REG_F_NTC_FAULT_MASK));
+
+		mutex_lock(&bdi->f_reg_lock);
+		if ((bdi->f_reg & battery_mask_f) != (f_reg & battery_mask_f))
+			alert_battery = true;
+		if ((bdi->f_reg & ~battery_mask_f) != (f_reg & ~battery_mask_f))
+			alert_charger = true;
+		bdi->f_reg = f_reg;
+		mutex_unlock(&bdi->f_reg_lock);
+	}
+
 	if (ss_reg != bdi->ss_reg) {
 		/*
 		 * The device is in host mode so when PG_STAT goes from 1->0
@@ -1225,47 +1217,17 @@ static irqreturn_t bq24190_irq_handler_t
 					ret);
 		}
 
+		if ((bdi->ss_reg & battery_mask_ss) != (ss_reg & battery_mask_ss))
+			alert_battery = true;
+		if ((bdi->ss_reg & ~battery_mask_ss) != (ss_reg & ~battery_mask_ss))
+			alert_charger = true;
 		bdi->ss_reg = ss_reg;
-		alert_userspace = true;
-	}
-
-	mutex_lock(&bdi->f_reg_lock);
-
-	ret = bq24190_read(bdi, BQ24190_REG_F, &f_reg);
-	if (ret < 0) {
-		mutex_unlock(&bdi->f_reg_lock);
-		dev_err(bdi->dev, "Can't read F reg: %d\n", ret);
-		goto out;
 	}
 
-	if (f_reg != bdi->f_reg) {
-		bdi->f_reg = f_reg;
-		bdi->charger_health_valid = true;
-		bdi->battery_health_valid = true;
-		bdi->battery_status_valid = true;
-
-		alert_userspace = true;
-	}
-
-	mutex_unlock(&bdi->f_reg_lock);
-
-	/*
-	 * Sometimes bq24190 gives a steady trickle of interrupts even
-	 * though the watchdog timer is turned off and neither the STATUS
-	 * nor FAULT registers have changed.  Weed out these sprurious
-	 * interrupts so userspace isn't alerted for no reason.
-	 * In addition, the chip always generates an interrupt after
-	 * register reset so we should ignore that one (the very first
-	 * interrupt received).
-	 */
-	if (alert_userspace) {
-		if (!bdi->first_time) {
-			power_supply_changed(bdi->charger);
-			power_supply_changed(bdi->battery);
-		} else {
-			bdi->first_time = false;
-		}
-	}
+	if (alert_charger)
+		power_supply_changed(bdi->charger);
+	if (alert_battery)
+		power_supply_changed(bdi->battery);
 
 out:
 	pm_runtime_put_sync(bdi->dev);
@@ -1300,6 +1262,10 @@ static int bq24190_hw_init(struct bq2419
 		goto out;
 
 	ret = bq24190_set_mode_host(bdi);
+	if (ret < 0)
+		goto out;
+
+	ret = bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg);
 out:
 	pm_runtime_put_sync(bdi->dev);
 	return ret;
@@ -1375,10 +1341,8 @@ static int bq24190_probe(struct i2c_clie
 	bdi->model = id->driver_data;
 	strncpy(bdi->model_name, id->name, I2C_NAME_SIZE);
 	mutex_init(&bdi->f_reg_lock);
-	bdi->first_time = true;
-	bdi->charger_health_valid = false;
-	bdi->battery_health_valid = false;
-	bdi->battery_status_valid = false;
+	bdi->f_reg = 0;
+	bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */
 
 	i2c_set_clientdata(client, bdi);
 
@@ -1392,22 +1356,13 @@ static int bq24190_probe(struct i2c_clie
 		return -EINVAL;
 	}
 
-	ret = devm_request_threaded_irq(dev, bdi->irq, NULL,
-			bq24190_irq_handler_thread,
-			IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-			"bq24190-charger", bdi);
-	if (ret < 0) {
-		dev_err(dev, "Can't set up irq handler\n");
-		goto out1;
-	}
-
 	pm_runtime_enable(dev);
 	pm_runtime_resume(dev);
 
 	ret = bq24190_hw_init(bdi);
 	if (ret < 0) {
 		dev_err(dev, "Hardware init failed\n");
-		goto out2;
+		goto out1;
 	}
 
 	charger_cfg.drv_data = bdi;
@@ -1418,7 +1373,7 @@ static int bq24190_probe(struct i2c_clie
 	if (IS_ERR(bdi->charger)) {
 		dev_err(dev, "Can't register charger\n");
 		ret = PTR_ERR(bdi->charger);
-		goto out2;
+		goto out1;
 	}
 
 	battery_cfg.drv_data = bdi;
@@ -1427,24 +1382,34 @@ static int bq24190_probe(struct i2c_clie
 	if (IS_ERR(bdi->battery)) {
 		dev_err(dev, "Can't register battery\n");
 		ret = PTR_ERR(bdi->battery);
-		goto out3;
+		goto out2;
 	}
 
 	ret = bq24190_sysfs_create_group(bdi);
 	if (ret) {
 		dev_err(dev, "Can't create sysfs entries\n");
+		goto out3;
+	}
+
+	ret = devm_request_threaded_irq(dev, bdi->irq, NULL,
+			bq24190_irq_handler_thread,
+			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			"bq24190-charger", bdi);
+	if (ret < 0) {
+		dev_err(dev, "Can't set up irq handler\n");
 		goto out4;
 	}
 
 	return 0;
 
 out4:
-	power_supply_unregister(bdi->battery);
+	bq24190_sysfs_remove_group(bdi);
 out3:
-	power_supply_unregister(bdi->charger);
+	power_supply_unregister(bdi->battery);
 out2:
-	pm_runtime_disable(dev);
+	power_supply_unregister(bdi->charger);
 out1:
+	pm_runtime_disable(dev);
 	if (bdi->gpio_int)
 		gpio_free(bdi->gpio_int);
 
@@ -1488,12 +1453,13 @@ static int bq24190_pm_resume(struct devi
 	struct i2c_client *client = to_i2c_client(dev);
 	struct bq24190_dev_info *bdi = i2c_get_clientdata(client);
 
-	bdi->charger_health_valid = false;
-	bdi->battery_health_valid = false;
-	bdi->battery_status_valid = false;
+	bdi->f_reg = 0;
+	bdi->ss_reg = BQ24190_REG_SS_VBUS_STAT_MASK; /* impossible state */
 
 	pm_runtime_get_sync(bdi->dev);
 	bq24190_register_reset(bdi);
+	bq24190_set_mode_host(bdi);
+	bq24190_read(bdi, BQ24190_REG_SS, &bdi->ss_reg);
 	pm_runtime_put_sync(bdi->dev);
 
 	/* Things may have changed while suspended so alert upper layer */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/power/supply/bq27xxx_battery.c linux-libre-4.9.52-gnu/drivers/power/supply/bq27xxx_battery.c
--- linux-libre-4.9-gnu/drivers/power/supply/bq27xxx_battery.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/power/supply/bq27xxx_battery.c	2017-09-27 08:40:05.000000000 -0400
@@ -164,6 +164,25 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX
 		[BQ27XXX_REG_DCAP] = 0x3c,
 		[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
 	},
+	[BQ27510] = {
+		[BQ27XXX_REG_CTRL] = 0x00,
+		[BQ27XXX_REG_TEMP] = 0x06,
+		[BQ27XXX_REG_INT_TEMP] = 0x28,
+		[BQ27XXX_REG_VOLT] = 0x08,
+		[BQ27XXX_REG_AI] = 0x14,
+		[BQ27XXX_REG_FLAGS] = 0x0a,
+		[BQ27XXX_REG_TTE] = 0x16,
+		[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
+		[BQ27XXX_REG_TTES] = 0x1a,
+		[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
+		[BQ27XXX_REG_NAC] = 0x0c,
+		[BQ27XXX_REG_FCC] = 0x12,
+		[BQ27XXX_REG_CYCT] = 0x1e,
+		[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
+		[BQ27XXX_REG_SOC] = 0x20,
+		[BQ27XXX_REG_DCAP] = 0x2e,
+		[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
+	},
 	[BQ27530] = {
 		[BQ27XXX_REG_CTRL] = 0x00,
 		[BQ27XXX_REG_TEMP] = 0x06,
@@ -302,6 +321,24 @@ static enum power_supply_property bq2750
 	POWER_SUPPLY_PROP_MANUFACTURER,
 };
 
+static enum power_supply_property bq27510_battery_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_CURRENT_NOW,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
+	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
+	POWER_SUPPLY_PROP_TECHNOLOGY,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
+	POWER_SUPPLY_PROP_CYCLE_COUNT,
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
 static enum power_supply_property bq27530_battery_props[] = {
 	POWER_SUPPLY_PROP_STATUS,
 	POWER_SUPPLY_PROP_PRESENT,
@@ -385,6 +422,7 @@ static struct {
 	BQ27XXX_PROP(BQ27000, bq27000_battery_props),
 	BQ27XXX_PROP(BQ27010, bq27010_battery_props),
 	BQ27XXX_PROP(BQ27500, bq27500_battery_props),
+	BQ27XXX_PROP(BQ27510, bq27510_battery_props),
 	BQ27XXX_PROP(BQ27530, bq27530_battery_props),
 	BQ27XXX_PROP(BQ27541, bq27541_battery_props),
 	BQ27XXX_PROP(BQ27545, bq27545_battery_props),
@@ -635,7 +673,8 @@ static int bq27xxx_battery_read_pwr_avg(
  */
 static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags)
 {
-	if (di->chip == BQ27500 || di->chip == BQ27541 || di->chip == BQ27545)
+	if (di->chip == BQ27500 || di->chip == BQ27510 ||
+	    di->chip == BQ27541 || di->chip == BQ27545)
 		return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD);
 	if (di->chip == BQ27530 || di->chip == BQ27421)
 		return flags & BQ27XXX_FLAG_OT;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/power/supply/bq27xxx_battery_i2c.c linux-libre-4.9.52-gnu/drivers/power/supply/bq27xxx_battery_i2c.c
--- linux-libre-4.9-gnu/drivers/power/supply/bq27xxx_battery_i2c.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/power/supply/bq27xxx_battery_i2c.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,8 +149,8 @@ static const struct i2c_device_id bq27xx
 	{ "bq27200", BQ27000 },
 	{ "bq27210", BQ27010 },
 	{ "bq27500", BQ27500 },
-	{ "bq27510", BQ27500 },
-	{ "bq27520", BQ27500 },
+	{ "bq27510", BQ27510 },
+	{ "bq27520", BQ27510 },
 	{ "bq27530", BQ27530 },
 	{ "bq27531", BQ27530 },
 	{ "bq27541", BQ27541 },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/power/supply/lp8788-charger.c linux-libre-4.9.52-gnu/drivers/power/supply/lp8788-charger.c
--- linux-libre-4.9-gnu/drivers/power/supply/lp8788-charger.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/power/supply/lp8788-charger.c	2017-09-27 08:40:05.000000000 -0400
@@ -654,7 +654,7 @@ static ssize_t lp8788_show_eoc_time(stru
 {
 	struct lp8788_charger *pchg = dev_get_drvdata(dev);
 	char *stime[] = { "400ms", "5min", "10min", "15min",
-			"20min", "25min", "30min" "No timeout" };
+			"20min", "25min", "30min", "No timeout" };
 	u8 val;
 
 	lp8788_read_byte(pchg->lp, LP8788_CHG_EOC, &val);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/powercap/intel_rapl.c linux-libre-4.9.52-gnu/drivers/powercap/intel_rapl.c
--- linux-libre-4.9-gnu/drivers/powercap/intel_rapl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/powercap/intel_rapl.c	2017-09-27 08:40:05.000000000 -0400
@@ -442,6 +442,7 @@ static int contraint_to_pl(struct rapl_d
 			return i;
 		}
 	}
+	pr_err("Cannot find matching power limit for constraint %d\n", cid);
 
 	return -EINVAL;
 }
@@ -457,6 +458,10 @@ static int set_power_limit(struct powerc
 	get_online_cpus();
 	rd = power_zone_to_rapl_domain(power_zone);
 	id = contraint_to_pl(rd, cid);
+	if (id < 0) {
+		ret = id;
+		goto set_exit;
+	}
 
 	rp = rd->rp;
 
@@ -496,6 +501,11 @@ static int get_current_power_limit(struc
 	get_online_cpus();
 	rd = power_zone_to_rapl_domain(power_zone);
 	id = contraint_to_pl(rd, cid);
+	if (id < 0) {
+		ret = id;
+		goto get_exit;
+	}
+
 	switch (rd->rpl[id].prim_id) {
 	case PL1_ENABLE:
 		prim = POWER_LIMIT1;
@@ -512,6 +522,7 @@ static int get_current_power_limit(struc
 	else
 		*data = val;
 
+get_exit:
 	put_online_cpus();
 
 	return ret;
@@ -527,6 +538,10 @@ static int set_time_window(struct powerc
 	get_online_cpus();
 	rd = power_zone_to_rapl_domain(power_zone);
 	id = contraint_to_pl(rd, cid);
+	if (id < 0) {
+		ret = id;
+		goto set_time_exit;
+	}
 
 	switch (rd->rpl[id].prim_id) {
 	case PL1_ENABLE:
@@ -538,6 +553,8 @@ static int set_time_window(struct powerc
 	default:
 		ret = -EINVAL;
 	}
+
+set_time_exit:
 	put_online_cpus();
 	return ret;
 }
@@ -552,6 +569,10 @@ static int get_time_window(struct powerc
 	get_online_cpus();
 	rd = power_zone_to_rapl_domain(power_zone);
 	id = contraint_to_pl(rd, cid);
+	if (id < 0) {
+		ret = id;
+		goto get_time_exit;
+	}
 
 	switch (rd->rpl[id].prim_id) {
 	case PL1_ENABLE:
@@ -566,6 +587,8 @@ static int get_time_window(struct powerc
 	}
 	if (!ret)
 		*data = val;
+
+get_time_exit:
 	put_online_cpus();
 
 	return ret;
@@ -707,7 +730,7 @@ static u64 rapl_unit_xlate(struct rapl_d
 	case ENERGY_UNIT:
 		scale = ENERGY_UNIT_SCALE;
 		/* per domain unit takes precedence */
-		if (rd && rd->domain_energy_unit)
+		if (rd->domain_energy_unit)
 			units = rd->domain_energy_unit;
 		else
 			units = rp->energy_unit;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pwm/pwm-pca9685.c linux-libre-4.9.52-gnu/drivers/pwm/pwm-pca9685.c
--- linux-libre-4.9-gnu/drivers/pwm/pwm-pca9685.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pwm/pwm-pca9685.c	2017-09-27 08:40:05.000000000 -0400
@@ -65,7 +65,6 @@
 #define PCA9685_MAXCHAN		0x10
 
 #define LED_FULL		(1 << 4)
-#define MODE1_RESTART		(1 << 7)
 #define MODE1_SLEEP		(1 << 4)
 #define MODE2_INVRT		(1 << 4)
 #define MODE2_OUTDRV		(1 << 2)
@@ -117,16 +116,6 @@ static int pca9685_pwm_config(struct pwm
 			udelay(500);
 
 			pca->period_ns = period_ns;
-
-			/*
-			 * If the duty cycle did not change, restart PWM with
-			 * the same duty cycle to period ratio and return.
-			 */
-			if (duty_ns == pca->duty_ns) {
-				regmap_update_bits(pca->regmap, PCA9685_MODE1,
-						   MODE1_RESTART, 0x1);
-				return 0;
-			}
 		} else {
 			dev_err(chip->dev,
 				"prescaler not set: period out of bounds!\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/pwm/pwm-rockchip.c linux-libre-4.9.52-gnu/drivers/pwm/pwm-rockchip.c
--- linux-libre-4.9-gnu/drivers/pwm/pwm-rockchip.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/pwm/pwm-rockchip.c	2017-09-27 08:40:05.000000000 -0400
@@ -191,6 +191,28 @@ static int rockchip_pwm_config(struct pw
 	return 0;
 }
 
+static int rockchip_pwm_enable(struct pwm_chip *chip,
+			 struct pwm_device *pwm,
+			 bool enable,
+			 enum pwm_polarity polarity)
+{
+	struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
+	int ret;
+
+	if (enable) {
+		ret = clk_enable(pc->clk);
+		if (ret)
+			return ret;
+	}
+
+	pc->data->set_enable(chip, pwm, enable, polarity);
+
+	if (!enable)
+		clk_disable(pc->clk);
+
+	return 0;
+}
+
 static int rockchip_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 			      struct pwm_state *state)
 {
@@ -207,22 +229,26 @@ static int rockchip_pwm_apply(struct pwm
 		return ret;
 
 	if (state->polarity != curstate.polarity && enabled) {
-		pc->data->set_enable(chip, pwm, false, state->polarity);
+		ret = rockchip_pwm_enable(chip, pwm, false, state->polarity);
+		if (ret)
+			goto out;
 		enabled = false;
 	}
 
 	ret = rockchip_pwm_config(chip, pwm, state->duty_cycle, state->period);
 	if (ret) {
 		if (enabled != curstate.enabled)
-			pc->data->set_enable(chip, pwm, !enabled,
-					     state->polarity);
-
+			rockchip_pwm_enable(chip, pwm, !enabled,
+				      state->polarity);
 		goto out;
 	}
 
-	if (state->enabled != enabled)
-		pc->data->set_enable(chip, pwm, state->enabled,
-				     state->polarity);
+	if (state->enabled != enabled) {
+		ret = rockchip_pwm_enable(chip, pwm, state->enabled,
+				    state->polarity);
+		if (ret)
+			goto out;
+	}
 
 	/*
 	 * Update the state with the real hardware, which can differ a bit
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/regulator/axp20x-regulator.c linux-libre-4.9.52-gnu/drivers/regulator/axp20x-regulator.c
--- linux-libre-4.9-gnu/drivers/regulator/axp20x-regulator.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/regulator/axp20x-regulator.c	2017-09-27 08:40:05.000000000 -0400
@@ -272,7 +272,7 @@ static const struct regulator_desc axp80
 			64, AXP806_DCDCD_V_CTRL, 0x3f, AXP806_PWR_OUT_CTRL1,
 			BIT(3)),
 	AXP_DESC(AXP806, DCDCE, "dcdce", "vine", 1100, 3400, 100,
-		 AXP806_DCDCB_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(4)),
+		 AXP806_DCDCE_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(4)),
 	AXP_DESC(AXP806, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
 		 AXP806_ALDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(5)),
 	AXP_DESC(AXP806, ALDO2, "aldo2", "aldoin", 700, 3400, 100,
@@ -337,10 +337,18 @@ static const struct regulator_desc axp80
 		 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
 	AXP_DESC(AXP809, ELDO3, "eldo3", "eldoin", 700, 3300, 100,
 		 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
-	AXP_DESC_IO(AXP809, LDO_IO0, "ldo_io0", "ips", 700, 3300, 100,
+	/*
+	 * Note the datasheet only guarantees reliable operation up to
+	 * 3.3V, this needs to be enforced via dts provided constraints
+	 */
+	AXP_DESC_IO(AXP809, LDO_IO0, "ldo_io0", "ips", 700, 3800, 100,
 		    AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
 		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
-	AXP_DESC_IO(AXP809, LDO_IO1, "ldo_io1", "ips", 700, 3300, 100,
+	/*
+	 * Note the datasheet only guarantees reliable operation up to
+	 * 3.3V, this needs to be enforced via dts provided constraints
+	 */
+	AXP_DESC_IO(AXP809, LDO_IO1, "ldo_io1", "ips", 700, 3800, 100,
 		    AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
 		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
 	AXP_DESC_FIXED(AXP809, RTC_LDO, "rtc_ldo", "ips", 1800),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/regulator/core.c linux-libre-4.9.52-gnu/drivers/regulator/core.c
--- linux-libre-4.9-gnu/drivers/regulator/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/regulator/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -4357,12 +4357,13 @@ static void regulator_summary_show_subtr
 	seq_puts(s, "\n");
 
 	list_for_each_entry(consumer, &rdev->consumer_list, list) {
-		if (consumer->dev->class == &regulator_class)
+		if (consumer->dev && consumer->dev->class == &regulator_class)
 			continue;
 
 		seq_printf(s, "%*s%-*s ",
 			   (level + 1) * 3 + 1, "",
-			   30 - (level + 1) * 3, dev_name(consumer->dev));
+			   30 - (level + 1) * 3,
+			   consumer->dev ? dev_name(consumer->dev) : "deviceless");
 
 		switch (rdev->desc->type) {
 		case REGULATOR_VOLTAGE:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/regulator/helpers.c linux-libre-4.9.52-gnu/drivers/regulator/helpers.c
--- linux-libre-4.9-gnu/drivers/regulator/helpers.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/regulator/helpers.c	2017-09-27 08:40:05.000000000 -0400
@@ -454,13 +454,17 @@ EXPORT_SYMBOL_GPL(regulator_set_bypass_r
 int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable)
 {
 	unsigned int val;
+	unsigned int val_on = rdev->desc->bypass_val_on;
 	int ret;
 
 	ret = regmap_read(rdev->regmap, rdev->desc->bypass_reg, &val);
 	if (ret != 0)
 		return ret;
 
-	*enable = (val & rdev->desc->bypass_mask) == rdev->desc->bypass_val_on;
+	if (!val_on)
+		val_on = rdev->desc->bypass_mask;
+
+	*enable = (val & rdev->desc->bypass_mask) == val_on;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/regulator/rk808-regulator.c linux-libre-4.9.52-gnu/drivers/regulator/rk808-regulator.c
--- linux-libre-4.9-gnu/drivers/regulator/rk808-regulator.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/regulator/rk808-regulator.c	2017-09-27 08:40:05.000000000 -0400
@@ -520,7 +520,7 @@ static const struct regulator_desc rk818
 		RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
 		BIT(0), 400),
 	RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
-		RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		RK818_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
 		BIT(1), 400),
 	{
 		.name = "LDO_REG3",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/regulator/stw481x-vmmc.c linux-libre-4.9.52-gnu/drivers/regulator/stw481x-vmmc.c
--- linux-libre-4.9-gnu/drivers/regulator/stw481x-vmmc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/regulator/stw481x-vmmc.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,7 +47,8 @@ static struct regulator_desc vmmc_regula
 	.volt_table = stw481x_vmmc_voltages,
 	.enable_time = 200, /* FIXME: look this up */
 	.enable_reg = STW_CONF1,
-	.enable_mask = STW_CONF1_PDN_VMMC,
+	.enable_mask = STW_CONF1_PDN_VMMC | STW_CONF1_MMC_LS_STATUS,
+	.enable_val = STW_CONF1_PDN_VMMC,
 	.vsel_reg = STW_CONF1,
 	.vsel_mask = STW_CONF1_VMMC_MASK,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/regulator/tps65023-regulator.c linux-libre-4.9.52-gnu/drivers/regulator/tps65023-regulator.c
--- linux-libre-4.9-gnu/drivers/regulator/tps65023-regulator.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/regulator/tps65023-regulator.c	2017-09-27 08:40:05.000000000 -0400
@@ -311,8 +311,7 @@ static int tps_65023_probe(struct i2c_cl
 
 	/* Enable setting output voltage by I2C */
 	regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
-					TPS65023_REG_CTRL2_CORE_ADJ,
-					TPS65023_REG_CTRL2_CORE_ADJ);
+			   TPS65023_REG_CTRL2_CORE_ADJ, 0);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/regulator/tps65086-regulator.c linux-libre-4.9.52-gnu/drivers/regulator/tps65086-regulator.c
--- linux-libre-4.9-gnu/drivers/regulator/tps65086-regulator.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/regulator/tps65086-regulator.c	2017-09-27 08:40:05.000000000 -0400
@@ -71,18 +71,17 @@ struct tps65086_regulator {
 	unsigned int decay_mask;
 };
 
-static const struct regulator_linear_range tps65086_buck126_10mv_ranges[] = {
+static const struct regulator_linear_range tps65086_10mv_ranges[] = {
 	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
 	REGULATOR_LINEAR_RANGE(410000, 0x1, 0x7F, 10000),
 };
 
 static const struct regulator_linear_range tps65086_buck126_25mv_ranges[] = {
-	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
-	REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x18, 0),
+	REGULATOR_LINEAR_RANGE(1000000, 0x0, 0x18, 0),
 	REGULATOR_LINEAR_RANGE(1025000, 0x19, 0x7F, 25000),
 };
 
-static const struct regulator_linear_range tps65086_buck345_ranges[] = {
+static const struct regulator_linear_range tps65086_buck345_25mv_ranges[] = {
 	REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0),
 	REGULATOR_LINEAR_RANGE(425000, 0x1, 0x7F, 25000),
 };
@@ -125,27 +124,27 @@ static int tps65086_of_parse_cb(struct d
 static struct tps65086_regulator regulators[] = {
 	TPS65086_REGULATOR("BUCK1", "buck1", BUCK1, 0x80, TPS65086_BUCK1CTRL,
 			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(0),
-			   tps65086_buck126_10mv_ranges, TPS65086_BUCK1CTRL,
+			   tps65086_10mv_ranges, TPS65086_BUCK1CTRL,
 			   BIT(0)),
 	TPS65086_REGULATOR("BUCK2", "buck2", BUCK2, 0x80, TPS65086_BUCK2CTRL,
 			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(1),
-			   tps65086_buck126_10mv_ranges, TPS65086_BUCK2CTRL,
+			   tps65086_10mv_ranges, TPS65086_BUCK2CTRL,
 			   BIT(0)),
 	TPS65086_REGULATOR("BUCK3", "buck3", BUCK3, 0x80, TPS65086_BUCK3VID,
 			   BUCK_VID_MASK, TPS65086_BUCK123CTRL, BIT(2),
-			   tps65086_buck345_ranges, TPS65086_BUCK3DECAY,
+			   tps65086_10mv_ranges, TPS65086_BUCK3DECAY,
 			   BIT(0)),
 	TPS65086_REGULATOR("BUCK4", "buck4", BUCK4, 0x80, TPS65086_BUCK4VID,
 			   BUCK_VID_MASK, TPS65086_BUCK4CTRL, BIT(0),
-			   tps65086_buck345_ranges, TPS65086_BUCK4VID,
+			   tps65086_10mv_ranges, TPS65086_BUCK4VID,
 			   BIT(0)),
 	TPS65086_REGULATOR("BUCK5", "buck5", BUCK5, 0x80, TPS65086_BUCK5VID,
 			   BUCK_VID_MASK, TPS65086_BUCK5CTRL, BIT(0),
-			   tps65086_buck345_ranges, TPS65086_BUCK5CTRL,
+			   tps65086_10mv_ranges, TPS65086_BUCK5CTRL,
 			   BIT(0)),
 	TPS65086_REGULATOR("BUCK6", "buck6", BUCK6, 0x80, TPS65086_BUCK6VID,
 			   BUCK_VID_MASK, TPS65086_BUCK6CTRL, BIT(0),
-			   tps65086_buck126_10mv_ranges, TPS65086_BUCK6CTRL,
+			   tps65086_10mv_ranges, TPS65086_BUCK6CTRL,
 			   BIT(0)),
 	TPS65086_REGULATOR("LDOA1", "ldoa1", LDOA1, 0xF, TPS65086_LDOA1CTRL,
 			   VDOA1_VID_MASK, TPS65086_LDOA1CTRL, BIT(0),
@@ -157,40 +156,43 @@ static struct tps65086_regulator regulat
 			   VDOA23_VID_MASK, TPS65086_LDOA3CTRL, BIT(0),
 			   tps65086_ldoa23_ranges, 0, 0),
 	TPS65086_SWITCH("SWA1", "swa1", SWA1, TPS65086_SWVTT_EN, BIT(5)),
-	TPS65086_SWITCH("SWB1", "swa2", SWB1, TPS65086_SWVTT_EN, BIT(6)),
-	TPS65086_SWITCH("SWB2", "swa3", SWB2, TPS65086_SWVTT_EN, BIT(7)),
+	TPS65086_SWITCH("SWB1", "swb1", SWB1, TPS65086_SWVTT_EN, BIT(6)),
+	TPS65086_SWITCH("SWB2", "swb2", SWB2, TPS65086_SWVTT_EN, BIT(7)),
 	TPS65086_SWITCH("VTT", "vtt", VTT, TPS65086_SWVTT_EN, BIT(4)),
 };
 
-static inline bool has_25mv_mode(int id)
-{
-	switch (id) {
-	case BUCK1:
-	case BUCK2:
-	case BUCK6:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static int tps65086_of_parse_cb(struct device_node *dev,
+static int tps65086_of_parse_cb(struct device_node *node,
 				const struct regulator_desc *desc,
 				struct regulator_config *config)
 {
 	int ret;
 
 	/* Check for 25mV step mode */
-	if (has_25mv_mode(desc->id) &&
-			of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) {
-		regulators[desc->id].desc.linear_ranges =
+	if (of_property_read_bool(node, "ti,regulator-step-size-25mv")) {
+		switch (desc->id) {
+		case BUCK1:
+		case BUCK2:
+		case BUCK6:
+			regulators[desc->id].desc.linear_ranges =
 				tps65086_buck126_25mv_ranges;
-		regulators[desc->id].desc.n_linear_ranges =
+			regulators[desc->id].desc.n_linear_ranges =
 				ARRAY_SIZE(tps65086_buck126_25mv_ranges);
+			break;
+		case BUCK3:
+		case BUCK4:
+		case BUCK5:
+			regulators[desc->id].desc.linear_ranges =
+				tps65086_buck345_25mv_ranges;
+			regulators[desc->id].desc.n_linear_ranges =
+				ARRAY_SIZE(tps65086_buck345_25mv_ranges);
+			break;
+		default:
+			dev_warn(config->dev, "25mV step mode only valid for BUCK regulators\n");
+		}
 	}
 
 	/* Check for decay mode */
-	if (desc->id <= BUCK6 && of_property_read_bool(config->of_node, "ti,regulator-decay")) {
+	if (desc->id <= BUCK6 && of_property_read_bool(node, "ti,regulator-decay")) {
 		ret = regmap_write_bits(config->regmap,
 					regulators[desc->id].decay_reg,
 					regulators[desc->id].decay_mask,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/remoteproc/Kconfig linux-libre-4.9.52-gnu/drivers/remoteproc/Kconfig
--- linux-libre-4.9-gnu/drivers/remoteproc/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/remoteproc/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -91,17 +91,12 @@ config QCOM_Q6V5_PIL
 	  Say y here to support the Qualcomm Peripherial Image Loader for the
 	  Hexagon V5 based remote processors.
 
-config QCOM_WCNSS_IRIS
-	tristate
-	depends on OF && ARCH_QCOM
-
 config QCOM_WCNSS_PIL
 	tristate "Qualcomm WCNSS Peripheral Image Loader"
 	depends on OF && ARCH_QCOM
 	depends on QCOM_SMEM
 	select QCOM_MDT_LOADER
 	select QCOM_SCM
-	select QCOM_WCNSS_IRIS
 	select REMOTEPROC
 	help
 	  Say y here to support the Peripheral Image Loader for the Qualcomm
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/remoteproc/Makefile linux-libre-4.9.52-gnu/drivers/remoteproc/Makefile
--- linux-libre-4.9-gnu/drivers/remoteproc/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/remoteproc/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -13,6 +13,7 @@ obj-$(CONFIG_WKUP_M3_RPROC)		+= wkup_m3_
 obj-$(CONFIG_DA8XX_REMOTEPROC)		+= da8xx_remoteproc.o
 obj-$(CONFIG_QCOM_MDT_LOADER)		+= qcom_mdt_loader.o
 obj-$(CONFIG_QCOM_Q6V5_PIL)		+= qcom_q6v5_pil.o
-obj-$(CONFIG_QCOM_WCNSS_IRIS)		+= qcom_wcnss_iris.o
-obj-$(CONFIG_QCOM_WCNSS_PIL)		+= qcom_wcnss.o
+obj-$(CONFIG_QCOM_WCNSS_PIL)		+= qcom_wcnss_pil.o
+qcom_wcnss_pil-y			+= qcom_wcnss.o
+qcom_wcnss_pil-y			+= qcom_wcnss_iris.o
 obj-$(CONFIG_ST_REMOTEPROC)		+= st_remoteproc.o
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/remoteproc/qcom_mdt_loader.c linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_mdt_loader.c
--- linux-libre-4.9-gnu/drivers/remoteproc/qcom_mdt_loader.c	2016-12-11 18:00:55.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_mdt_loader.c	2017-09-27 15:17:06.000000000 -0400
@@ -115,6 +115,7 @@ int qcom_mdt_load(struct rproc *rproc,
 	const struct elf32_phdr *phdrs;
 	const struct elf32_phdr *phdr;
 	const struct elf32_hdr *ehdr;
+	const struct firmware *seg_fw;
 	size_t fw_name_len;
 	char *fw_name;
 	void *ptr;
@@ -153,16 +154,16 @@ int qcom_mdt_load(struct rproc *rproc,
 
 		if (phdr->p_filesz) {
 			sprintf(fw_name + fw_name_len - 3, "b%02d", i);
-			ret = reject_firmware(&fw, fw_name, &rproc->dev);
+			ret = reject_firmware(&seg_fw, fw_name, &rproc->dev);
 			if (ret) {
 				dev_err(&rproc->dev, "failed to load %s\n",
 					fw_name);
 				break;
 			}
 
-			memcpy(ptr, fw->data, fw->size);
+			memcpy(ptr, seg_fw->data, seg_fw->size);
 
-			release_firmware(fw);
+			release_firmware(seg_fw);
 		}
 
 		if (phdr->p_memsz > phdr->p_filesz)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/remoteproc/qcom_wcnss.c linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_wcnss.c
--- linux-libre-4.9-gnu/drivers/remoteproc/qcom_wcnss.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_wcnss.c	2017-09-27 08:40:05.000000000 -0400
@@ -143,7 +143,6 @@ void qcom_wcnss_assign_iris(struct qcom_
 
 	mutex_unlock(&wcnss->iris_lock);
 }
-EXPORT_SYMBOL_GPL(qcom_wcnss_assign_iris);
 
 static int wcnss_load(struct rproc *rproc, const struct firmware *fw)
 {
@@ -619,6 +618,28 @@ static struct platform_driver wcnss_driv
 	},
 };
 
-module_platform_driver(wcnss_driver);
+static int __init wcnss_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&wcnss_driver);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&qcom_iris_driver);
+	if (ret)
+		platform_driver_unregister(&wcnss_driver);
+
+	return ret;
+}
+module_init(wcnss_init);
+
+static void __exit wcnss_exit(void)
+{
+	platform_driver_unregister(&qcom_iris_driver);
+	platform_driver_unregister(&wcnss_driver);
+}
+module_exit(wcnss_exit);
+
 MODULE_DESCRIPTION("Qualcomm Peripherial Image Loader for Wireless Subsystem");
 MODULE_LICENSE("GPL v2");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/remoteproc/qcom_wcnss.h linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_wcnss.h
--- linux-libre-4.9-gnu/drivers/remoteproc/qcom_wcnss.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_wcnss.h	2017-09-27 08:40:05.000000000 -0400
@@ -4,6 +4,8 @@
 struct qcom_iris;
 struct qcom_wcnss;
 
+extern struct platform_driver qcom_iris_driver;
+
 struct wcnss_vreg_info {
 	const char * const name;
 	int min_voltage;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/remoteproc/qcom_wcnss_iris.c linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_wcnss_iris.c
--- linux-libre-4.9-gnu/drivers/remoteproc/qcom_wcnss_iris.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/remoteproc/qcom_wcnss_iris.c	2017-09-27 08:40:05.000000000 -0400
@@ -94,14 +94,12 @@ disable_regulators:
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(qcom_iris_enable);
 
 void qcom_iris_disable(struct qcom_iris *iris)
 {
 	clk_disable_unprepare(iris->xo_clk);
 	regulator_bulk_disable(iris->num_vregs, iris->vregs);
 }
-EXPORT_SYMBOL_GPL(qcom_iris_disable);
 
 static int qcom_iris_probe(struct platform_device *pdev)
 {
@@ -174,7 +172,7 @@ static const struct of_device_id iris_of
 	{}
 };
 
-static struct platform_driver wcnss_driver = {
+struct platform_driver qcom_iris_driver = {
 	.probe = qcom_iris_probe,
 	.remove = qcom_iris_remove,
 	.driver = {
@@ -182,7 +180,3 @@ static struct platform_driver wcnss_driv
 		.of_match_table = iris_of_match,
 	},
 };
-
-module_platform_driver(wcnss_driver);
-MODULE_DESCRIPTION("Qualcomm Wireless Subsystem Iris driver");
-MODULE_LICENSE("GPL v2");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/remoteproc/st_remoteproc.c linux-libre-4.9.52-gnu/drivers/remoteproc/st_remoteproc.c
--- linux-libre-4.9-gnu/drivers/remoteproc/st_remoteproc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/remoteproc/st_remoteproc.c	2017-09-27 08:40:05.000000000 -0400
@@ -245,8 +245,10 @@ static int st_rproc_probe(struct platfor
 		goto free_rproc;
 
 	enabled = st_rproc_state(pdev);
-	if (enabled < 0)
+	if (enabled < 0) {
+		ret = enabled;
 		goto free_rproc;
+	}
 
 	if (enabled) {
 		atomic_inc(&rproc->power);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/rpmsg/qcom_smd.c linux-libre-4.9.52-gnu/drivers/rpmsg/qcom_smd.c
--- linux-libre-4.9-gnu/drivers/rpmsg/qcom_smd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/rpmsg/qcom_smd.c	2017-09-27 08:40:05.000000000 -0400
@@ -739,7 +739,7 @@ static int __qcom_smd_send(struct qcom_s
 
 	while (qcom_smd_get_tx_avail(channel) < tlen) {
 		if (!wait) {
-			ret = -ENOMEM;
+			ret = -EAGAIN;
 			goto out;
 		}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/rpmsg/rpmsg_core.c linux-libre-4.9.52-gnu/drivers/rpmsg/rpmsg_core.c
--- linux-libre-4.9-gnu/drivers/rpmsg/rpmsg_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/rpmsg/rpmsg_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -411,8 +411,8 @@ int rpmsg_register_device(struct rpmsg_d
 	struct device *dev = &rpdev->dev;
 	int ret;
 
-	dev_set_name(&rpdev->dev, "%s:%s",
-		     dev_name(dev->parent), rpdev->id.name);
+	dev_set_name(&rpdev->dev, "%s.%s.%d.%d", dev_name(dev->parent),
+		     rpdev->id.name, rpdev->src, rpdev->dst);
 
 	rpdev->dev.bus = &rpmsg_bus;
 	rpdev->dev.release = rpmsg_release_device;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/rtc/Kconfig linux-libre-4.9.52-gnu/drivers/rtc/Kconfig
--- linux-libre-4.9-gnu/drivers/rtc/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/rtc/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -1432,7 +1432,7 @@ config RTC_DRV_SUN4V
 	  based RTC on SUN4V systems.
 
 config RTC_DRV_SUN6I
-	tristate "Allwinner A31 RTC"
+	bool "Allwinner A31 RTC"
 	default MACH_SUN6I || MACH_SUN8I || COMPILE_TEST
 	depends on ARCH_SUNXI
 	help
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/rtc/rtc-sun6i.c linux-libre-4.9.52-gnu/drivers/rtc/rtc-sun6i.c
--- linux-libre-4.9-gnu/drivers/rtc/rtc-sun6i.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/rtc/rtc-sun6i.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,9 +37,11 @@
 
 /* Control register */
 #define SUN6I_LOSC_CTRL				0x0000
+#define SUN6I_LOSC_CTRL_KEY			(0x16aa << 16)
 #define SUN6I_LOSC_CTRL_ALM_DHMS_ACC		BIT(9)
 #define SUN6I_LOSC_CTRL_RTC_HMS_ACC		BIT(8)
 #define SUN6I_LOSC_CTRL_RTC_YMD_ACC		BIT(7)
+#define SUN6I_LOSC_CTRL_EXT_OSC			BIT(0)
 #define SUN6I_LOSC_CTRL_ACC_MASK		GENMASK(9, 7)
 
 /* RTC */
@@ -114,13 +116,17 @@ struct sun6i_rtc_dev {
 	void __iomem *base;
 	int irq;
 	unsigned long alarm;
+
+	spinlock_t lock;
 };
 
 static irqreturn_t sun6i_rtc_alarmirq(int irq, void *id)
 {
 	struct sun6i_rtc_dev *chip = (struct sun6i_rtc_dev *) id;
+	irqreturn_t ret = IRQ_NONE;
 	u32 val;
 
+	spin_lock(&chip->lock);
 	val = readl(chip->base + SUN6I_ALRM_IRQ_STA);
 
 	if (val & SUN6I_ALRM_IRQ_STA_CNT_IRQ_PEND) {
@@ -129,10 +135,11 @@ static irqreturn_t sun6i_rtc_alarmirq(in
 
 		rtc_update_irq(chip->rtc, 1, RTC_AF | RTC_IRQF);
 
-		return IRQ_HANDLED;
+		ret = IRQ_HANDLED;
 	}
+	spin_unlock(&chip->lock);
 
-	return IRQ_NONE;
+	return ret;
 }
 
 static void sun6i_rtc_setaie(int to, struct sun6i_rtc_dev *chip)
@@ -140,6 +147,7 @@ static void sun6i_rtc_setaie(int to, str
 	u32 alrm_val = 0;
 	u32 alrm_irq_val = 0;
 	u32 alrm_wake_val = 0;
+	unsigned long flags;
 
 	if (to) {
 		alrm_val = SUN6I_ALRM_EN_CNT_EN;
@@ -150,9 +158,11 @@ static void sun6i_rtc_setaie(int to, str
 		       chip->base + SUN6I_ALRM_IRQ_STA);
 	}
 
+	spin_lock_irqsave(&chip->lock, flags);
 	writel(alrm_val, chip->base + SUN6I_ALRM_EN);
 	writel(alrm_irq_val, chip->base + SUN6I_ALRM_IRQ_EN);
 	writel(alrm_wake_val, chip->base + SUN6I_ALARM_CONFIG);
+	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
 static int sun6i_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
@@ -191,11 +201,15 @@ static int sun6i_rtc_gettime(struct devi
 static int sun6i_rtc_getalarm(struct device *dev, struct rtc_wkalrm *wkalrm)
 {
 	struct sun6i_rtc_dev *chip = dev_get_drvdata(dev);
+	unsigned long flags;
 	u32 alrm_st;
 	u32 alrm_en;
 
+	spin_lock_irqsave(&chip->lock, flags);
 	alrm_en = readl(chip->base + SUN6I_ALRM_IRQ_EN);
 	alrm_st = readl(chip->base + SUN6I_ALRM_IRQ_STA);
+	spin_unlock_irqrestore(&chip->lock, flags);
+
 	wkalrm->enabled = !!(alrm_en & SUN6I_ALRM_EN_CNT_EN);
 	wkalrm->pending = !!(alrm_st & SUN6I_ALRM_EN_CNT_EN);
 	rtc_time_to_tm(chip->alarm, &wkalrm->time);
@@ -356,6 +370,7 @@ static int sun6i_rtc_probe(struct platfo
 	chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
 	if (!chip)
 		return -ENOMEM;
+	spin_lock_init(&chip->lock);
 
 	platform_set_drvdata(pdev, chip);
 	chip->dev = &pdev->dev;
@@ -404,6 +419,10 @@ static int sun6i_rtc_probe(struct platfo
 	/* disable alarm wakeup */
 	writel(0, chip->base + SUN6I_ALARM_CONFIG);
 
+	/* switch to the external, more precise, oscillator */
+	writel(SUN6I_LOSC_CTRL_KEY | SUN6I_LOSC_CTRL_EXT_OSC,
+	       chip->base + SUN6I_LOSC_CTRL);
+
 	chip->rtc = rtc_device_register("rtc-sun6i", &pdev->dev,
 					&sun6i_rtc_ops, THIS_MODULE);
 	if (IS_ERR(chip->rtc)) {
@@ -439,9 +458,4 @@ static struct platform_driver sun6i_rtc_
 		.of_match_table = sun6i_rtc_dt_ids,
 	},
 };
-
-module_platform_driver(sun6i_rtc_driver);
-
-MODULE_DESCRIPTION("sun6i RTC driver");
-MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
-MODULE_LICENSE("GPL");
+builtin_platform_driver(sun6i_rtc_driver);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/rtc/rtc-tegra.c linux-libre-4.9.52-gnu/drivers/rtc/rtc-tegra.c
--- linux-libre-4.9-gnu/drivers/rtc/rtc-tegra.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/rtc/rtc-tegra.c	2017-09-27 08:40:05.000000000 -0400
@@ -18,6 +18,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 #include <linux/kernel.h>
+#include <linux/clk.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -59,6 +60,7 @@ struct tegra_rtc_info {
 	struct platform_device	*pdev;
 	struct rtc_device	*rtc_dev;
 	void __iomem		*rtc_base; /* NULL if not initialized. */
+	struct clk		*clk;
 	int			tegra_rtc_irq; /* alarm and periodic irq */
 	spinlock_t		tegra_rtc_lock;
 };
@@ -326,6 +328,14 @@ static int __init tegra_rtc_probe(struct
 	if (info->tegra_rtc_irq <= 0)
 		return -EBUSY;
 
+	info->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(info->clk))
+		return PTR_ERR(info->clk);
+
+	ret = clk_prepare_enable(info->clk);
+	if (ret < 0)
+		return ret;
+
 	/* set context info. */
 	info->pdev = pdev;
 	spin_lock_init(&info->tegra_rtc_lock);
@@ -346,7 +356,7 @@ static int __init tegra_rtc_probe(struct
 		ret = PTR_ERR(info->rtc_dev);
 		dev_err(&pdev->dev, "Unable to register device (err=%d).\n",
 			ret);
-		return ret;
+		goto disable_clk;
 	}
 
 	ret = devm_request_irq(&pdev->dev, info->tegra_rtc_irq,
@@ -356,12 +366,25 @@ static int __init tegra_rtc_probe(struct
 		dev_err(&pdev->dev,
 			"Unable to request interrupt for device (err=%d).\n",
 			ret);
-		return ret;
+		goto disable_clk;
 	}
 
 	dev_notice(&pdev->dev, "Tegra internal Real Time Clock\n");
 
 	return 0;
+
+disable_clk:
+	clk_disable_unprepare(info->clk);
+	return ret;
+}
+
+static int tegra_rtc_remove(struct platform_device *pdev)
+{
+	struct tegra_rtc_info *info = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(info->clk);
+
+	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -413,6 +436,7 @@ static void tegra_rtc_shutdown(struct pl
 
 MODULE_ALIAS("platform:tegra_rtc");
 static struct platform_driver tegra_rtc_driver = {
+	.remove		= tegra_rtc_remove,
 	.shutdown	= tegra_rtc_shutdown,
 	.driver		= {
 		.name	= "tegra_rtc",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/block/dcssblk.c linux-libre-4.9.52-gnu/drivers/s390/block/dcssblk.c
--- linux-libre-4.9-gnu/drivers/s390/block/dcssblk.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/block/dcssblk.c	2017-09-27 08:40:05.000000000 -0400
@@ -892,7 +892,7 @@ dcssblk_direct_access (struct block_devi
 	dev_info = bdev->bd_disk->private_data;
 	if (!dev_info)
 		return -ENODEV;
-	dev_sz = dev_info->end - dev_info->start;
+	dev_sz = dev_info->end - dev_info->start + 1;
 	offset = secnum * 512;
 	*kaddr = (void *) dev_info->start + offset;
 	*pfn = __pfn_to_pfn_t(PFN_DOWN(dev_info->start + offset), PFN_DEV);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/char/vmlogrdr.c linux-libre-4.9.52-gnu/drivers/s390/char/vmlogrdr.c
--- linux-libre-4.9-gnu/drivers/s390/char/vmlogrdr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/char/vmlogrdr.c	2017-09-27 08:40:05.000000000 -0400
@@ -870,7 +870,7 @@ static int __init vmlogrdr_init(void)
 		goto cleanup;
 
 	for (i=0; i < MAXMINOR; ++i ) {
-		sys_ser[i].buffer = (char *) get_zeroed_page(GFP_KERNEL);
+		sys_ser[i].buffer = (char *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
 		if (!sys_ser[i].buffer) {
 			rc = -ENOMEM;
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/cio/ioasm.c linux-libre-4.9.52-gnu/drivers/s390/cio/ioasm.c
--- linux-libre-4.9-gnu/drivers/s390/cio/ioasm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/cio/ioasm.c	2017-09-27 08:40:05.000000000 -0400
@@ -165,13 +165,15 @@ int tpi(struct tpi_info *addr)
 int chsc(void *chsc_area)
 {
 	typedef struct { char _[4096]; } addr_type;
-	int cc;
+	int cc = -EIO;
 
 	asm volatile(
 		"	.insn	rre,0xb25f0000,%2,0\n"
-		"	ipm	%0\n"
+		"0:	ipm	%0\n"
 		"	srl	%0,28\n"
-		: "=d" (cc), "=m" (*(addr_type *) chsc_area)
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		: "+d" (cc), "=m" (*(addr_type *) chsc_area)
 		: "d" (chsc_area), "m" (*(addr_type *) chsc_area)
 		: "cc");
 	trace_s390_cio_chsc(chsc_area, cc);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/cio/qdio_thinint.c linux-libre-4.9.52-gnu/drivers/s390/cio/qdio_thinint.c
--- linux-libre-4.9-gnu/drivers/s390/cio/qdio_thinint.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/cio/qdio_thinint.c	2017-09-27 08:40:05.000000000 -0400
@@ -147,11 +147,11 @@ static inline void tiqdio_call_inq_handl
 	struct qdio_q *q;
 	int i;
 
-	for_each_input_queue(irq, q, i) {
-		if (!references_shared_dsci(irq) &&
-		    has_multiple_inq_on_dsci(irq))
-			xchg(q->irq_ptr->dsci, 0);
+	if (!references_shared_dsci(irq) &&
+	    has_multiple_inq_on_dsci(irq))
+		xchg(irq->dsci, 0);
 
+	for_each_input_queue(irq, q, i) {
 		if (q->u.in.queue_start_poll) {
 			/* skip if polling is enabled or already in work */
 			if (test_and_set_bit(QDIO_QUEUE_IRQS_DISABLED,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/crypto/ap_bus.c linux-libre-4.9.52-gnu/drivers/s390/crypto/ap_bus.c
--- linux-libre-4.9-gnu/drivers/s390/crypto/ap_bus.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/crypto/ap_bus.c	2017-09-27 08:40:05.000000000 -0400
@@ -1712,6 +1712,9 @@ static void ap_scan_bus(struct work_stru
 		ap_dev->queue_depth = queue_depth;
 		ap_dev->raw_hwtype = device_type;
 		ap_dev->device_type = device_type;
+		/* CEX6 toleration: map to CEX5 */
+		if (device_type == AP_DEVICE_TYPE_CEX6)
+			ap_dev->device_type = AP_DEVICE_TYPE_CEX5;
 		ap_dev->functions = device_functions;
 		spin_lock_init(&ap_dev->lock);
 		INIT_LIST_HEAD(&ap_dev->pendingq);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/crypto/ap_bus.h linux-libre-4.9.52-gnu/drivers/s390/crypto/ap_bus.h
--- linux-libre-4.9-gnu/drivers/s390/crypto/ap_bus.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/crypto/ap_bus.h	2017-09-27 08:40:05.000000000 -0400
@@ -105,6 +105,7 @@ static inline int ap_test_bit(unsigned i
 #define AP_DEVICE_TYPE_CEX3C	9
 #define AP_DEVICE_TYPE_CEX4	10
 #define AP_DEVICE_TYPE_CEX5	11
+#define AP_DEVICE_TYPE_CEX6	12
 
 /*
  * Known function facilities
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/net/qeth_core.h linux-libre-4.9.52-gnu/drivers/s390/net/qeth_core.h
--- linux-libre-4.9-gnu/drivers/s390/net/qeth_core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/net/qeth_core.h	2017-09-27 08:40:05.000000000 -0400
@@ -718,6 +718,7 @@ enum qeth_discipline_id {
 };
 
 struct qeth_discipline {
+	const struct device_type *devtype;
 	void (*start_poll)(struct ccw_device *, int, unsigned long);
 	qdio_handler_t *input_handler;
 	qdio_handler_t *output_handler;
@@ -893,6 +894,9 @@ extern struct qeth_discipline qeth_l2_di
 extern struct qeth_discipline qeth_l3_discipline;
 extern const struct attribute_group *qeth_generic_attr_groups[];
 extern const struct attribute_group *qeth_osn_attr_groups[];
+extern const struct attribute_group qeth_device_attr_group;
+extern const struct attribute_group qeth_device_blkt_group;
+extern const struct device_type qeth_generic_devtype;
 extern struct workqueue_struct *qeth_wq;
 
 int qeth_card_hw_is_reachable(struct qeth_card *);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/net/qeth_core_main.c linux-libre-4.9.52-gnu/drivers/s390/net/qeth_core_main.c
--- linux-libre-4.9-gnu/drivers/s390/net/qeth_core_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/net/qeth_core_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -5462,10 +5462,12 @@ void qeth_core_free_discipline(struct qe
 	card->discipline = NULL;
 }
 
-static const struct device_type qeth_generic_devtype = {
+const struct device_type qeth_generic_devtype = {
 	.name = "qeth_generic",
 	.groups = qeth_generic_attr_groups,
 };
+EXPORT_SYMBOL_GPL(qeth_generic_devtype);
+
 static const struct device_type qeth_osn_devtype = {
 	.name = "qeth_osn",
 	.groups = qeth_osn_attr_groups,
@@ -5591,23 +5593,22 @@ static int qeth_core_probe_device(struct
 		goto err_card;
 	}
 
-	if (card->info.type == QETH_CARD_TYPE_OSN)
-		gdev->dev.type = &qeth_osn_devtype;
-	else
-		gdev->dev.type = &qeth_generic_devtype;
-
 	switch (card->info.type) {
 	case QETH_CARD_TYPE_OSN:
 	case QETH_CARD_TYPE_OSM:
 		rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
 		if (rc)
 			goto err_card;
+
+		gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN)
+					? card->discipline->devtype
+					: &qeth_osn_devtype;
 		rc = card->discipline->setup(card->gdev);
 		if (rc)
 			goto err_disc;
-	case QETH_CARD_TYPE_OSD:
-	case QETH_CARD_TYPE_OSX:
+		break;
 	default:
+		gdev->dev.type = &qeth_generic_devtype;
 		break;
 	}
 
@@ -5663,8 +5664,10 @@ static int qeth_core_set_online(struct c
 		if (rc)
 			goto err;
 		rc = card->discipline->setup(card->gdev);
-		if (rc)
+		if (rc) {
+			qeth_core_free_discipline(card);
 			goto err;
+		}
 	}
 	rc = card->discipline->set_online(gdev);
 err:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/net/qeth_core_sys.c linux-libre-4.9.52-gnu/drivers/s390/net/qeth_core_sys.c
--- linux-libre-4.9-gnu/drivers/s390/net/qeth_core_sys.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/net/qeth_core_sys.c	2017-09-27 08:40:05.000000000 -0400
@@ -413,12 +413,16 @@ static ssize_t qeth_dev_layer2_store(str
 
 	if (card->options.layer2 == newdis)
 		goto out;
-	else {
-		card->info.mac_bits  = 0;
-		if (card->discipline) {
-			card->discipline->remove(card->gdev);
-			qeth_core_free_discipline(card);
-		}
+	if (card->info.type == QETH_CARD_TYPE_OSM) {
+		/* fixed layer, can't switch */
+		rc = -EOPNOTSUPP;
+		goto out;
+	}
+
+	card->info.mac_bits = 0;
+	if (card->discipline) {
+		card->discipline->remove(card->gdev);
+		qeth_core_free_discipline(card);
 	}
 
 	rc = qeth_core_load_discipline(card, newdis);
@@ -426,6 +430,8 @@ static ssize_t qeth_dev_layer2_store(str
 		goto out;
 
 	rc = card->discipline->setup(card->gdev);
+	if (rc)
+		qeth_core_free_discipline(card);
 out:
 	mutex_unlock(&card->discipline_mutex);
 	return rc ? rc : count;
@@ -703,10 +709,11 @@ static struct attribute *qeth_blkt_devic
 	&dev_attr_inter_jumbo.attr,
 	NULL,
 };
-static struct attribute_group qeth_device_blkt_group = {
+const struct attribute_group qeth_device_blkt_group = {
 	.name = "blkt",
 	.attrs = qeth_blkt_device_attrs,
 };
+EXPORT_SYMBOL_GPL(qeth_device_blkt_group);
 
 static struct attribute *qeth_device_attrs[] = {
 	&dev_attr_state.attr,
@@ -726,9 +733,10 @@ static struct attribute *qeth_device_att
 	&dev_attr_switch_attrs.attr,
 	NULL,
 };
-static struct attribute_group qeth_device_attr_group = {
+const struct attribute_group qeth_device_attr_group = {
 	.attrs = qeth_device_attrs,
 };
+EXPORT_SYMBOL_GPL(qeth_device_attr_group);
 
 const struct attribute_group *qeth_generic_attr_groups[] = {
 	&qeth_device_attr_group,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/net/qeth_l2.h linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l2.h
--- linux-libre-4.9-gnu/drivers/s390/net/qeth_l2.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l2.h	2017-09-27 08:40:05.000000000 -0400
@@ -8,6 +8,8 @@
 
 #include "qeth_core.h"
 
+extern const struct attribute_group *qeth_l2_attr_groups[];
+
 int qeth_l2_create_device_attributes(struct device *);
 void qeth_l2_remove_device_attributes(struct device *);
 void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/net/qeth_l2_main.c linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l2_main.c
--- linux-libre-4.9-gnu/drivers/s390/net/qeth_l2_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l2_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -1021,11 +1021,21 @@ static int qeth_l2_stop(struct net_devic
 	return 0;
 }
 
+static const struct device_type qeth_l2_devtype = {
+	.name = "qeth_layer2",
+	.groups = qeth_l2_attr_groups,
+};
+
 static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc;
 
-	qeth_l2_create_device_attributes(&gdev->dev);
+	if (gdev->dev.type == &qeth_generic_devtype) {
+		rc = qeth_l2_create_device_attributes(&gdev->dev);
+		if (rc)
+			return rc;
+	}
 	INIT_LIST_HEAD(&card->vid_list);
 	hash_init(card->mac_htable);
 	card->options.layer2 = 1;
@@ -1037,7 +1047,8 @@ static void qeth_l2_remove_device(struct
 {
 	struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
 
-	qeth_l2_remove_device_attributes(&cgdev->dev);
+	if (cgdev->dev.type == &qeth_generic_devtype)
+		qeth_l2_remove_device_attributes(&cgdev->dev);
 	qeth_set_allowed_threads(card, 0, 1);
 	wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
 
@@ -1095,7 +1106,6 @@ static int qeth_l2_setup_netdev(struct q
 	case QETH_CARD_TYPE_OSN:
 		card->dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN,
 					 ether_setup);
-		card->dev->flags |= IFF_NOARP;
 		break;
 	default:
 		card->dev = alloc_etherdev(0);
@@ -1108,9 +1118,12 @@ static int qeth_l2_setup_netdev(struct q
 	card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
 	card->dev->mtu = card->info.initial_mtu;
 	card->dev->netdev_ops = &qeth_l2_netdev_ops;
-	card->dev->ethtool_ops =
-		(card->info.type != QETH_CARD_TYPE_OSN) ?
-		&qeth_l2_ethtool_ops : &qeth_l2_osn_ops;
+	if (card->info.type == QETH_CARD_TYPE_OSN) {
+		card->dev->ethtool_ops = &qeth_l2_osn_ops;
+		card->dev->flags |= IFF_NOARP;
+	} else {
+		card->dev->ethtool_ops = &qeth_l2_ethtool_ops;
+	}
 	card->dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 	if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
 		card->dev->hw_features = NETIF_F_SG;
@@ -1434,6 +1447,7 @@ static int qeth_l2_control_event(struct
 }
 
 struct qeth_discipline qeth_l2_discipline = {
+	.devtype = &qeth_l2_devtype,
 	.start_poll = qeth_qdio_start_poll,
 	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
 	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/net/qeth_l2_sys.c linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l2_sys.c
--- linux-libre-4.9-gnu/drivers/s390/net/qeth_l2_sys.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l2_sys.c	2017-09-27 08:40:05.000000000 -0400
@@ -272,3 +272,11 @@ void qeth_l2_setup_bridgeport_attrs(stru
 	} else
 		qeth_bridgeport_an_set(card, 0);
 }
+
+const struct attribute_group *qeth_l2_attr_groups[] = {
+	&qeth_device_attr_group,
+	&qeth_device_blkt_group,
+	/* l2 specific, see l2_{create,remove}_device_attributes(): */
+	&qeth_l2_bridgeport_attr_group,
+	NULL,
+};
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/net/qeth_l3_main.c linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l3_main.c
--- linux-libre-4.9-gnu/drivers/s390/net/qeth_l3_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/net/qeth_l3_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -3157,8 +3157,13 @@ static int qeth_l3_setup_netdev(struct q
 static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
 {
 	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc;
 
-	qeth_l3_create_device_attributes(&gdev->dev);
+	rc = qeth_l3_create_device_attributes(&gdev->dev);
+	if (rc)
+		return rc;
+	hash_init(card->ip_htable);
+	hash_init(card->ip_mc_htable);
 	card->options.layer2 = 0;
 	card->info.hwtrap = 0;
 	return 0;
@@ -3450,6 +3455,7 @@ static int qeth_l3_control_event(struct
 }
 
 struct qeth_discipline qeth_l3_discipline = {
+	.devtype = &qeth_generic_devtype,
 	.start_poll = qeth_qdio_start_poll,
 	.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
 	.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_dbf.c linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_dbf.c
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_dbf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_dbf.c	2017-09-27 08:40:05.000000000 -0400
@@ -3,7 +3,7 @@
  *
  * Debug traces for zfcp.
  *
- * Copyright IBM Corp. 2002, 2016
+ * Copyright IBM Corp. 2002, 2017
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -289,11 +289,12 @@ void zfcp_dbf_rec_trig(char *tag, struct
 
 
 /**
- * zfcp_dbf_rec_run - trace event related to running recovery
+ * zfcp_dbf_rec_run_lvl - trace event related to running recovery
+ * @level: trace level to be used for event
  * @tag: identifier for event
  * @erp: erp_action running
  */
-void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
+void zfcp_dbf_rec_run_lvl(int level, char *tag, struct zfcp_erp_action *erp)
 {
 	struct zfcp_dbf *dbf = erp->adapter->dbf;
 	struct zfcp_dbf_rec *rec = &dbf->rec_buf;
@@ -319,11 +320,21 @@ void zfcp_dbf_rec_run(char *tag, struct
 	else
 		rec->u.run.rec_count = atomic_read(&erp->adapter->erp_counter);
 
-	debug_event(dbf->rec, 1, rec, sizeof(*rec));
+	debug_event(dbf->rec, level, rec, sizeof(*rec));
 	spin_unlock_irqrestore(&dbf->rec_lock, flags);
 }
 
 /**
+ * zfcp_dbf_rec_run - trace event related to running recovery
+ * @tag: identifier for event
+ * @erp: erp_action running
+ */
+void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
+{
+	zfcp_dbf_rec_run_lvl(1, tag, erp);
+}
+
+/**
  * zfcp_dbf_rec_run_wka - trace wka port event with info like running recovery
  * @tag: identifier for event
  * @wka_port: well known address port
@@ -436,6 +447,7 @@ static u16 zfcp_dbf_san_res_cap_len_if_g
 	struct fc_ct_hdr *reqh = sg_virt(ct_els->req);
 	struct fc_ns_gid_ft *reqn = (struct fc_ns_gid_ft *)(reqh + 1);
 	struct scatterlist *resp_entry = ct_els->resp;
+	struct fc_ct_hdr *resph;
 	struct fc_gpn_ft_resp *acc;
 	int max_entries, x, last = 0;
 
@@ -462,6 +474,13 @@ static u16 zfcp_dbf_san_res_cap_len_if_g
 		return len; /* not GPN_FT response so do not cap */
 
 	acc = sg_virt(resp_entry);
+
+	/* cap all but accept CT responses to at least the CT header */
+	resph = (struct fc_ct_hdr *)acc;
+	if ((ct_els->status) ||
+	    (resph->ct_cmd != cpu_to_be16(FC_FS_ACC)))
+		return max(FC_CT_HDR_LEN, ZFCP_DBF_SAN_MAX_PAYLOAD);
+
 	max_entries = (reqh->ct_mr_size * 4 / sizeof(struct fc_gpn_ft_resp))
 		+ 1 /* zfcp_fc_scan_ports: bytes correct, entries off-by-one
 		     * to account for header as 1st pseudo "entry" */;
@@ -544,8 +563,8 @@ void zfcp_dbf_scsi(char *tag, int level,
 	rec->scsi_retries = sc->retries;
 	rec->scsi_allowed = sc->allowed;
 	rec->scsi_id = sc->device->id;
-	/* struct zfcp_dbf_scsi needs to be updated to handle 64bit LUNs */
 	rec->scsi_lun = (u32)sc->device->lun;
+	rec->scsi_lun_64_hi = (u32)(sc->device->lun >> 32);
 	rec->host_scribble = (unsigned long)sc->host_scribble;
 
 	memcpy(rec->scsi_opcode, sc->cmnd,
@@ -553,19 +572,32 @@ void zfcp_dbf_scsi(char *tag, int level,
 
 	if (fsf) {
 		rec->fsf_req_id = fsf->req_id;
+		rec->pl_len = FCP_RESP_WITH_EXT;
 		fcp_rsp = (struct fcp_resp_with_ext *)
 				&(fsf->qtcb->bottom.io.fcp_rsp);
+		/* mandatory parts of FCP_RSP IU in this SCSI record */
 		memcpy(&rec->fcp_rsp, fcp_rsp, FCP_RESP_WITH_EXT);
 		if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL) {
 			fcp_rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
 			rec->fcp_rsp_info = fcp_rsp_info->rsp_code;
+			rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_rsp_len);
 		}
 		if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
-			rec->pl_len = min((u16)SCSI_SENSE_BUFFERSIZE,
-					  (u16)ZFCP_DBF_PAY_MAX_REC);
-			zfcp_dbf_pl_write(dbf, sc->sense_buffer, rec->pl_len,
-					  "fcp_sns", fsf->req_id);
+			rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_sns_len);
 		}
+		/* complete FCP_RSP IU in associated PAYload record
+		 * but only if there are optional parts
+		 */
+		if (fcp_rsp->resp.fr_flags != 0)
+			zfcp_dbf_pl_write(
+				dbf, fcp_rsp,
+				/* at least one full PAY record
+				 * but not beyond hardware response field
+				 */
+				min_t(u16, max_t(u16, rec->pl_len,
+						 ZFCP_DBF_PAY_MAX_REC),
+				      FSF_FCP_RSP_SIZE),
+				"fcp_riu", fsf->req_id);
 	}
 
 	debug_event(dbf->scsi, level, rec, sizeof(*rec));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_dbf.h linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_dbf.h
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_dbf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_dbf.h	2017-09-27 08:40:05.000000000 -0400
@@ -2,7 +2,7 @@
  * zfcp device driver
  * debug feature declarations
  *
- * Copyright IBM Corp. 2008, 2015
+ * Copyright IBM Corp. 2008, 2017
  */
 
 #ifndef ZFCP_DBF_H
@@ -204,7 +204,7 @@ enum zfcp_dbf_scsi_id {
  * @id: unique number of recovery record type
  * @tag: identifier string specifying the location of initiation
  * @scsi_id: scsi device id
- * @scsi_lun: scsi device logical unit number
+ * @scsi_lun: scsi device logical unit number, low part of 64 bit, old 32 bit
  * @scsi_result: scsi result
  * @scsi_retries: current retry number of scsi request
  * @scsi_allowed: allowed retries
@@ -214,6 +214,7 @@ enum zfcp_dbf_scsi_id {
  * @host_scribble: LLD specific data attached to SCSI request
  * @pl_len: length of paload stored as zfcp_dbf_pay
  * @fsf_rsp: response for fsf request
+ * @scsi_lun_64_hi: scsi device logical unit number, high part of 64 bit
  */
 struct zfcp_dbf_scsi {
 	u8 id;
@@ -230,6 +231,7 @@ struct zfcp_dbf_scsi {
 	u64 host_scribble;
 	u16 pl_len;
 	struct fcp_resp_with_ext fcp_rsp;
+	u32 scsi_lun_64_hi;
 } __packed;
 
 /**
@@ -283,6 +285,30 @@ struct zfcp_dbf {
 	struct zfcp_dbf_scsi		scsi_buf;
 };
 
+/**
+ * zfcp_dbf_hba_fsf_resp_suppress - true if we should not trace by default
+ * @req: request that has been completed
+ *
+ * Returns true if FCP response with only benign residual under count.
+ */
+static inline
+bool zfcp_dbf_hba_fsf_resp_suppress(struct zfcp_fsf_req *req)
+{
+	struct fsf_qtcb *qtcb = req->qtcb;
+	u32 fsf_stat = qtcb->header.fsf_status;
+	struct fcp_resp *fcp_rsp;
+	u8 rsp_flags, fr_status;
+
+	if (qtcb->prefix.qtcb_type != FSF_IO_COMMAND)
+		return false; /* not an FCP response */
+	fcp_rsp = (struct fcp_resp *)&qtcb->bottom.io.fcp_rsp;
+	rsp_flags = fcp_rsp->fr_flags;
+	fr_status = fcp_rsp->fr_status;
+	return (fsf_stat == FSF_FCP_RSP_AVAILABLE) &&
+		(rsp_flags == FCP_RESID_UNDER) &&
+		(fr_status == SAM_STAT_GOOD);
+}
+
 static inline
 void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
 {
@@ -299,12 +325,18 @@ void zfcp_dbf_hba_fsf_response(struct zf
 {
 	struct fsf_qtcb *qtcb = req->qtcb;
 
-	if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
+	if (unlikely(req->status & (ZFCP_STATUS_FSFREQ_DISMISSED |
+				    ZFCP_STATUS_FSFREQ_ERROR))) {
+		zfcp_dbf_hba_fsf_resp("fs_rerr", 3, req);
+
+	} else if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) &&
 	    (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) {
 		zfcp_dbf_hba_fsf_resp("fs_perr", 1, req);
 
 	} else if (qtcb->header.fsf_status != FSF_GOOD) {
-		zfcp_dbf_hba_fsf_resp("fs_ferr", 1, req);
+		zfcp_dbf_hba_fsf_resp("fs_ferr",
+				      zfcp_dbf_hba_fsf_resp_suppress(req)
+				      ? 5 : 1, req);
 
 	} else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
 		   (req->fsf_command == FSF_QTCB_OPEN_LUN)) {
@@ -375,7 +407,8 @@ void zfcp_dbf_scsi_abort(char *tag, stru
  * @flag: indicates type of reset (Target Reset, Logical Unit Reset)
  */
 static inline
-void zfcp_dbf_scsi_devreset(char *tag, struct scsi_cmnd *scmnd, u8 flag)
+void zfcp_dbf_scsi_devreset(char *tag, struct scsi_cmnd *scmnd, u8 flag,
+			    struct zfcp_fsf_req *fsf_req)
 {
 	char tmp_tag[ZFCP_DBF_TAG_LEN];
 
@@ -385,7 +418,18 @@ void zfcp_dbf_scsi_devreset(char *tag, s
 		memcpy(tmp_tag, "lr_", 3);
 
 	memcpy(&tmp_tag[3], tag, 4);
-	_zfcp_dbf_scsi(tmp_tag, 1, scmnd, NULL);
+	_zfcp_dbf_scsi(tmp_tag, 1, scmnd, fsf_req);
+}
+
+/**
+ * zfcp_dbf_scsi_nullcmnd() - trace NULLify of SCSI command in dev/tgt-reset.
+ * @scmnd: SCSI command that was NULLified.
+ * @fsf_req: request that owned @scmnd.
+ */
+static inline void zfcp_dbf_scsi_nullcmnd(struct scsi_cmnd *scmnd,
+					  struct zfcp_fsf_req *fsf_req)
+{
+	_zfcp_dbf_scsi("scfc__1", 3, scmnd, fsf_req);
 }
 
 #endif /* ZFCP_DBF_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_erp.c linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_erp.c
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_erp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_erp.c	2017-09-27 08:40:05.000000000 -0400
@@ -3,7 +3,7 @@
  *
  * Error Recovery Procedures (ERP).
  *
- * Copyright IBM Corp. 2002, 2015
+ * Copyright IBM Corp. 2002, 2016
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -1204,6 +1204,62 @@ static void zfcp_erp_action_dequeue(stru
 	}
 }
 
+/**
+ * zfcp_erp_try_rport_unblock - unblock rport if no more/new recovery
+ * @port: zfcp_port whose fc_rport we should try to unblock
+ */
+static void zfcp_erp_try_rport_unblock(struct zfcp_port *port)
+{
+	unsigned long flags;
+	struct zfcp_adapter *adapter = port->adapter;
+	int port_status;
+	struct Scsi_Host *shost = adapter->scsi_host;
+	struct scsi_device *sdev;
+
+	write_lock_irqsave(&adapter->erp_lock, flags);
+	port_status = atomic_read(&port->status);
+	if ((port_status & ZFCP_STATUS_COMMON_UNBLOCKED)    == 0 ||
+	    (port_status & (ZFCP_STATUS_COMMON_ERP_INUSE |
+			    ZFCP_STATUS_COMMON_ERP_FAILED)) != 0) {
+		/* new ERP of severity >= port triggered elsewhere meanwhile or
+		 * local link down (adapter erp_failed but not clear unblock)
+		 */
+		zfcp_dbf_rec_run_lvl(4, "ertru_p", &port->erp_action);
+		write_unlock_irqrestore(&adapter->erp_lock, flags);
+		return;
+	}
+	spin_lock(shost->host_lock);
+	__shost_for_each_device(sdev, shost) {
+		struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev);
+		int lun_status;
+
+		if (zsdev->port != port)
+			continue;
+		/* LUN under port of interest */
+		lun_status = atomic_read(&zsdev->status);
+		if ((lun_status & ZFCP_STATUS_COMMON_ERP_FAILED) != 0)
+			continue; /* unblock rport despite failed LUNs */
+		/* LUN recovery not given up yet [maybe follow-up pending] */
+		if ((lun_status & ZFCP_STATUS_COMMON_UNBLOCKED) == 0 ||
+		    (lun_status & ZFCP_STATUS_COMMON_ERP_INUSE) != 0) {
+			/* LUN blocked:
+			 * not yet unblocked [LUN recovery pending]
+			 * or meanwhile blocked [new LUN recovery triggered]
+			 */
+			zfcp_dbf_rec_run_lvl(4, "ertru_l", &zsdev->erp_action);
+			spin_unlock(shost->host_lock);
+			write_unlock_irqrestore(&adapter->erp_lock, flags);
+			return;
+		}
+	}
+	/* now port has no child or all children have completed recovery,
+	 * and no ERP of severity >= port was meanwhile triggered elsewhere
+	 */
+	zfcp_scsi_schedule_rport_register(port);
+	spin_unlock(shost->host_lock);
+	write_unlock_irqrestore(&adapter->erp_lock, flags);
+}
+
 static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
 {
 	struct zfcp_adapter *adapter = act->adapter;
@@ -1214,6 +1270,7 @@ static void zfcp_erp_action_cleanup(stru
 	case ZFCP_ERP_ACTION_REOPEN_LUN:
 		if (!(act->status & ZFCP_STATUS_ERP_NO_REF))
 			scsi_device_put(sdev);
+		zfcp_erp_try_rport_unblock(port);
 		break;
 
 	case ZFCP_ERP_ACTION_REOPEN_PORT:
@@ -1224,7 +1281,7 @@ static void zfcp_erp_action_cleanup(stru
 		 */
 		if (act->step != ZFCP_ERP_STEP_UNINITIALIZED)
 			if (result == ZFCP_ERP_SUCCEEDED)
-				zfcp_scsi_schedule_rport_register(port);
+				zfcp_erp_try_rport_unblock(port);
 		/* fall through */
 	case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
 		put_device(&port->dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_ext.h linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_ext.h
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_ext.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_ext.h	2017-09-27 08:40:05.000000000 -0400
@@ -3,7 +3,7 @@
  *
  * External function declarations.
  *
- * Copyright IBM Corp. 2002, 2015
+ * Copyright IBM Corp. 2002, 2016
  */
 
 #ifndef ZFCP_EXT_H
@@ -35,6 +35,8 @@ extern void zfcp_dbf_adapter_unregister(
 extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *,
 			      struct zfcp_port *, struct scsi_device *, u8, u8);
 extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
+extern void zfcp_dbf_rec_run_lvl(int level, char *tag,
+				 struct zfcp_erp_action *erp);
 extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64);
 extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
 extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_fc.h linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_fc.h
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_fc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_fc.h	2017-09-27 08:40:05.000000000 -0400
@@ -4,7 +4,7 @@
  * Fibre Channel related definitions and inline functions for the zfcp
  * device driver
  *
- * Copyright IBM Corp. 2009
+ * Copyright IBM Corp. 2009, 2017
  */
 
 #ifndef ZFCP_FC_H
@@ -279,6 +279,10 @@ void zfcp_fc_eval_fcp_rsp(struct fcp_res
 		     !(rsp_flags & FCP_SNS_LEN_VAL) &&
 		     fcp_rsp->resp.fr_status == SAM_STAT_GOOD)
 			set_host_byte(scsi, DID_ERROR);
+	} else if (unlikely(rsp_flags & FCP_RESID_OVER)) {
+		/* FCP_DL was not sufficient for SCSI data length */
+		if (fcp_rsp->resp.fr_status == SAM_STAT_GOOD)
+			set_host_byte(scsi, DID_ERROR);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_fsf.c linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_fsf.c
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_fsf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_fsf.c	2017-09-27 08:40:05.000000000 -0400
@@ -928,8 +928,8 @@ static void zfcp_fsf_send_ct_handler(str
 
 	switch (header->fsf_status) {
         case FSF_GOOD:
-		zfcp_dbf_san_res("fsscth2", req);
 		ct->status = 0;
+		zfcp_dbf_san_res("fsscth2", req);
 		break;
         case FSF_SERVICE_CLASS_NOT_SUPPORTED:
 		zfcp_fsf_class_not_supp(req);
@@ -1109,8 +1109,8 @@ static void zfcp_fsf_send_els_handler(st
 
 	switch (header->fsf_status) {
 	case FSF_GOOD:
-		zfcp_dbf_san_res("fsselh1", req);
 		send_els->status = 0;
+		zfcp_dbf_san_res("fsselh1", req);
 		break;
 	case FSF_SERVICE_CLASS_NOT_SUPPORTED:
 		zfcp_fsf_class_not_supp(req);
@@ -1583,7 +1583,7 @@ out:
 int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
 {
 	struct zfcp_qdio *qdio = wka_port->adapter->qdio;
-	struct zfcp_fsf_req *req = NULL;
+	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
 	spin_lock_irq(&qdio->req_q_lock);
@@ -1612,7 +1612,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_f
 		zfcp_fsf_req_free(req);
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
-	if (req && !IS_ERR(req))
+	if (!retval)
 		zfcp_dbf_rec_run_wka("fsowp_1", wka_port, req->req_id);
 	return retval;
 }
@@ -1638,7 +1638,7 @@ static void zfcp_fsf_close_wka_port_hand
 int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
 {
 	struct zfcp_qdio *qdio = wka_port->adapter->qdio;
-	struct zfcp_fsf_req *req = NULL;
+	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
 	spin_lock_irq(&qdio->req_q_lock);
@@ -1667,7 +1667,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_
 		zfcp_fsf_req_free(req);
 out:
 	spin_unlock_irq(&qdio->req_q_lock);
-	if (req && !IS_ERR(req))
+	if (!retval)
 		zfcp_dbf_rec_run_wka("fscwp_1", wka_port, req->req_id);
 	return retval;
 }
@@ -2258,7 +2258,8 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *
 	fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
 	zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0);
 
-	if (scsi_prot_sg_count(scsi_cmnd)) {
+	if ((scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) &&
+	    scsi_prot_sg_count(scsi_cmnd)) {
 		zfcp_qdio_set_data_div(qdio, &req->qdio_req,
 				       scsi_prot_sg_count(scsi_cmnd));
 		retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_fsf.h linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_fsf.h
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_fsf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_fsf.h	2017-09-27 08:40:05.000000000 -0400
@@ -3,7 +3,7 @@
  *
  * Interface to the FSF support functions.
  *
- * Copyright IBM Corp. 2002, 2015
+ * Copyright IBM Corp. 2002, 2016
  */
 
 #ifndef FSF_H
@@ -78,6 +78,7 @@
 #define FSF_APP_TAG_CHECK_FAILURE		0x00000082
 #define FSF_REF_TAG_CHECK_FAILURE		0x00000083
 #define FSF_ADAPTER_STATUS_AVAILABLE		0x000000AD
+#define FSF_FCP_RSP_AVAILABLE			0x000000AF
 #define FSF_UNKNOWN_COMMAND			0x000000E2
 #define FSF_UNKNOWN_OP_SUBTYPE                  0x000000E3
 #define FSF_INVALID_COMMAND_OPTION              0x000000E5
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_reqlist.h linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_reqlist.h
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_reqlist.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_reqlist.h	2017-09-27 08:40:05.000000000 -0400
@@ -4,7 +4,7 @@
  * Data structure and helper functions for tracking pending FSF
  * requests.
  *
- * Copyright IBM Corp. 2009
+ * Copyright IBM Corp. 2009, 2016
  */
 
 #ifndef ZFCP_REQLIST_H
@@ -180,4 +180,32 @@ static inline void zfcp_reqlist_move(str
 	spin_unlock_irqrestore(&rl->lock, flags);
 }
 
+/**
+ * zfcp_reqlist_apply_for_all() - apply a function to every request.
+ * @rl: the requestlist that contains the target requests.
+ * @f: the function to apply to each request; the first parameter of the
+ *     function will be the target-request; the second parameter is the same
+ *     pointer as given with the argument @data.
+ * @data: freely chosen argument; passed through to @f as second parameter.
+ *
+ * Uses :c:macro:`list_for_each_entry` to iterate over the lists in the hash-
+ * table (not a 'safe' variant, so don't modify the list).
+ *
+ * Holds @rl->lock over the entire request-iteration.
+ */
+static inline void
+zfcp_reqlist_apply_for_all(struct zfcp_reqlist *rl,
+			   void (*f)(struct zfcp_fsf_req *, void *), void *data)
+{
+	struct zfcp_fsf_req *req;
+	unsigned long flags;
+	unsigned int i;
+
+	spin_lock_irqsave(&rl->lock, flags);
+	for (i = 0; i < ZFCP_REQ_LIST_BUCKETS; i++)
+		list_for_each_entry(req, &rl->buckets[i], list)
+			f(req, data);
+	spin_unlock_irqrestore(&rl->lock, flags);
+}
+
 #endif /* ZFCP_REQLIST_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_scsi.c linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_scsi.c
--- linux-libre-4.9-gnu/drivers/s390/scsi/zfcp_scsi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/s390/scsi/zfcp_scsi.c	2017-09-27 08:40:05.000000000 -0400
@@ -3,7 +3,7 @@
  *
  * Interface to Linux SCSI midlayer.
  *
- * Copyright IBM Corp. 2002, 2015
+ * Copyright IBM Corp. 2002, 2017
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -88,9 +88,7 @@ int zfcp_scsi_queuecommand(struct Scsi_H
 	}
 
 	if (unlikely(!(status & ZFCP_STATUS_COMMON_UNBLOCKED))) {
-		/* This could be either
-		 * open LUN pending: this is temporary, will result in
-		 *	open LUN or ERP_FAILED, so retry command
+		/* This could be
 		 * call to rport_delete pending: mimic retry from
 		 * 	fc_remote_port_chkready until rport is BLOCKED
 		 */
@@ -209,6 +207,57 @@ static int zfcp_scsi_eh_abort_handler(st
 	return retval;
 }
 
+struct zfcp_scsi_req_filter {
+	u8 tmf_scope;
+	u32 lun_handle;
+	u32 port_handle;
+};
+
+static void zfcp_scsi_forget_cmnd(struct zfcp_fsf_req *old_req, void *data)
+{
+	struct zfcp_scsi_req_filter *filter =
+		(struct zfcp_scsi_req_filter *)data;
+
+	/* already aborted - prevent side-effects - or not a SCSI command */
+	if (old_req->data == NULL || old_req->fsf_command != FSF_QTCB_FCP_CMND)
+		return;
+
+	/* (tmf_scope == FCP_TMF_TGT_RESET || tmf_scope == FCP_TMF_LUN_RESET) */
+	if (old_req->qtcb->header.port_handle != filter->port_handle)
+		return;
+
+	if (filter->tmf_scope == FCP_TMF_LUN_RESET &&
+	    old_req->qtcb->header.lun_handle != filter->lun_handle)
+		return;
+
+	zfcp_dbf_scsi_nullcmnd((struct scsi_cmnd *)old_req->data, old_req);
+	old_req->data = NULL;
+}
+
+static void zfcp_scsi_forget_cmnds(struct zfcp_scsi_dev *zsdev, u8 tm_flags)
+{
+	struct zfcp_adapter *adapter = zsdev->port->adapter;
+	struct zfcp_scsi_req_filter filter = {
+		.tmf_scope = FCP_TMF_TGT_RESET,
+		.port_handle = zsdev->port->handle,
+	};
+	unsigned long flags;
+
+	if (tm_flags == FCP_TMF_LUN_RESET) {
+		filter.tmf_scope = FCP_TMF_LUN_RESET;
+		filter.lun_handle = zsdev->lun_handle;
+	}
+
+	/*
+	 * abort_lock secures against other processings - in the abort-function
+	 * and normal cmnd-handler - of (struct zfcp_fsf_req *)->data
+	 */
+	write_lock_irqsave(&adapter->abort_lock, flags);
+	zfcp_reqlist_apply_for_all(adapter->req_list, zfcp_scsi_forget_cmnd,
+				   &filter);
+	write_unlock_irqrestore(&adapter->abort_lock, flags);
+}
+
 static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
 {
 	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scpnt->device);
@@ -224,25 +273,31 @@ static int zfcp_task_mgmt_function(struc
 
 		zfcp_erp_wait(adapter);
 		ret = fc_block_scsi_eh(scpnt);
-		if (ret)
+		if (ret) {
+			zfcp_dbf_scsi_devreset("fiof", scpnt, tm_flags, NULL);
 			return ret;
+		}
 
 		if (!(atomic_read(&adapter->status) &
 		      ZFCP_STATUS_COMMON_RUNNING)) {
-			zfcp_dbf_scsi_devreset("nres", scpnt, tm_flags);
+			zfcp_dbf_scsi_devreset("nres", scpnt, tm_flags, NULL);
 			return SUCCESS;
 		}
 	}
-	if (!fsf_req)
+	if (!fsf_req) {
+		zfcp_dbf_scsi_devreset("reqf", scpnt, tm_flags, NULL);
 		return FAILED;
+	}
 
 	wait_for_completion(&fsf_req->completion);
 
 	if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) {
-		zfcp_dbf_scsi_devreset("fail", scpnt, tm_flags);
+		zfcp_dbf_scsi_devreset("fail", scpnt, tm_flags, fsf_req);
 		retval = FAILED;
-	} else
-		zfcp_dbf_scsi_devreset("okay", scpnt, tm_flags);
+	} else {
+		zfcp_dbf_scsi_devreset("okay", scpnt, tm_flags, fsf_req);
+		zfcp_scsi_forget_cmnds(zfcp_sdev, tm_flags);
+	}
 
 	zfcp_fsf_req_free(fsf_req);
 	return retval;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/aacraid/comminit.c linux-libre-4.9.52-gnu/drivers/scsi/aacraid/comminit.c
--- linux-libre-4.9-gnu/drivers/scsi/aacraid/comminit.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/aacraid/comminit.c	2017-09-27 08:40:05.000000000 -0400
@@ -50,9 +50,13 @@ struct aac_common aac_config = {
 
 static inline int aac_is_msix_mode(struct aac_dev *dev)
 {
-	u32 status;
+	u32 status = 0;
 
-	status = src_readl(dev, MUnit.OMR);
+	if (dev->pdev->device == PMC_DEVICE_S6 ||
+		dev->pdev->device == PMC_DEVICE_S7 ||
+		dev->pdev->device == PMC_DEVICE_S8) {
+		status = src_readl(dev, MUnit.OMR);
+	}
 	return (status & AAC_INT_MODE_MSIX);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/aacraid/linit.c linux-libre-4.9.52-gnu/drivers/scsi/aacraid/linit.c
--- linux-libre-4.9-gnu/drivers/scsi/aacraid/linit.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/aacraid/linit.c	2017-09-27 08:40:05.000000000 -0400
@@ -160,7 +160,6 @@ static const struct pci_device_id aac_pc
 	{ 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
 	{ 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
 	{ 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
-	{ 0x9005, 0x028f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 65 }, /* Adaptec PMC Series 9 */
 	{ 0,}
 };
 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
@@ -239,7 +238,6 @@ static struct aac_driver_ident aac_drive
 	{ aac_src_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 6 (Tupelo) */
 	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 7 (Denali) */
 	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC }, /* Adaptec PMC Series 8 */
-	{ aac_srcv_init, "aacraid", "ADAPTEC ", "RAID            ", 2, AAC_QUIRK_SRC } /* Adaptec PMC Series 9 */
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/aacraid/src.c linux-libre-4.9.52-gnu/drivers/scsi/aacraid/src.c
--- linux-libre-4.9-gnu/drivers/scsi/aacraid/src.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/aacraid/src.c	2017-09-27 08:40:05.000000000 -0400
@@ -414,16 +414,23 @@ static int aac_src_check_health(struct a
 	u32 status = src_readl(dev, MUnit.OMR);
 
 	/*
+	 *	Check to see if the board panic'd.
+	 */
+	if (unlikely(status & KERNEL_PANIC))
+		goto err_blink;
+
+	/*
 	 *	Check to see if the board failed any self tests.
 	 */
 	if (unlikely(status & SELF_TEST_FAILED))
-		return -1;
+		goto err_out;
 
 	/*
-	 *	Check to see if the board panic'd.
+	 *	Check to see if the board failed any self tests.
 	 */
-	if (unlikely(status & KERNEL_PANIC))
-		return (status >> 16) & 0xFF;
+	if (unlikely(status & MONITOR_PANIC))
+		goto err_out;
+
 	/*
 	 *	Wait for the adapter to be up and running.
 	 */
@@ -433,6 +440,12 @@ static int aac_src_check_health(struct a
 	 *	Everything is OK
 	 */
 	return 0;
+
+err_out:
+	return -1;
+
+err_blink:
+	return (status > 16) & 0xFF;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/bfa/bfad_drv.h linux-libre-4.9.52-gnu/drivers/scsi/bfa/bfad_drv.h
--- linux-libre-4.9-gnu/drivers/scsi/bfa/bfad_drv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/bfa/bfad_drv.h	2017-09-27 08:40:05.000000000 -0400
@@ -58,7 +58,7 @@
 #ifdef BFA_DRIVER_VERSION
 #define BFAD_DRIVER_VERSION    BFA_DRIVER_VERSION
 #else
-#define BFAD_DRIVER_VERSION    "3.2.25.0"
+#define BFAD_DRIVER_VERSION    "3.2.25.1"
 #endif
 
 #define BFAD_PROTO_NAME FCPI_NAME
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/device_handler/scsi_dh_alua.c linux-libre-4.9.52-gnu/drivers/scsi/device_handler/scsi_dh_alua.c
--- linux-libre-4.9-gnu/drivers/scsi/device_handler/scsi_dh_alua.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/device_handler/scsi_dh_alua.c	2017-09-27 08:40:05.000000000 -0400
@@ -113,7 +113,7 @@ struct alua_queue_data {
 #define ALUA_POLICY_SWITCH_ALL		1
 
 static void alua_rtpg_work(struct work_struct *work);
-static void alua_rtpg_queue(struct alua_port_group *pg,
+static bool alua_rtpg_queue(struct alua_port_group *pg,
 			    struct scsi_device *sdev,
 			    struct alua_queue_data *qdata, bool force);
 static void alua_check(struct scsi_device *sdev, bool force);
@@ -862,7 +862,13 @@ static void alua_rtpg_work(struct work_s
 	kref_put(&pg->kref, release_port_group);
 }
 
-static void alua_rtpg_queue(struct alua_port_group *pg,
+/**
+ * alua_rtpg_queue() - cause RTPG to be submitted asynchronously
+ *
+ * Returns true if and only if alua_rtpg_work() will be called asynchronously.
+ * That function is responsible for calling @qdata->fn().
+ */
+static bool alua_rtpg_queue(struct alua_port_group *pg,
 			    struct scsi_device *sdev,
 			    struct alua_queue_data *qdata, bool force)
 {
@@ -870,8 +876,8 @@ static void alua_rtpg_queue(struct alua_
 	unsigned long flags;
 	struct workqueue_struct *alua_wq = kaluad_wq;
 
-	if (!pg)
-		return;
+	if (!pg || scsi_device_get(sdev))
+		return false;
 
 	spin_lock_irqsave(&pg->lock, flags);
 	if (qdata) {
@@ -884,14 +890,12 @@ static void alua_rtpg_queue(struct alua_
 		pg->flags |= ALUA_PG_RUN_RTPG;
 		kref_get(&pg->kref);
 		pg->rtpg_sdev = sdev;
-		scsi_device_get(sdev);
 		start_queue = 1;
 	} else if (!(pg->flags & ALUA_PG_RUN_RTPG) && force) {
 		pg->flags |= ALUA_PG_RUN_RTPG;
 		/* Do not queue if the worker is already running */
 		if (!(pg->flags & ALUA_PG_RUNNING)) {
 			kref_get(&pg->kref);
-			sdev = NULL;
 			start_queue = 1;
 		}
 	}
@@ -900,13 +904,17 @@ static void alua_rtpg_queue(struct alua_
 		alua_wq = kaluad_sync_wq;
 	spin_unlock_irqrestore(&pg->lock, flags);
 
-	if (start_queue &&
-	    !queue_delayed_work(alua_wq, &pg->rtpg_work,
-				msecs_to_jiffies(ALUA_RTPG_DELAY_MSECS))) {
-		if (sdev)
-			scsi_device_put(sdev);
-		kref_put(&pg->kref, release_port_group);
+	if (start_queue) {
+		if (queue_delayed_work(alua_wq, &pg->rtpg_work,
+				msecs_to_jiffies(ALUA_RTPG_DELAY_MSECS)))
+			sdev = NULL;
+		else
+			kref_put(&pg->kref, release_port_group);
 	}
+	if (sdev)
+		scsi_device_put(sdev);
+
+	return true;
 }
 
 /*
@@ -1007,11 +1015,13 @@ static int alua_activate(struct scsi_dev
 		mutex_unlock(&h->init_mutex);
 		goto out;
 	}
-	fn = NULL;
 	rcu_read_unlock();
 	mutex_unlock(&h->init_mutex);
 
-	alua_rtpg_queue(pg, sdev, qdata, true);
+	if (alua_rtpg_queue(pg, sdev, qdata, true))
+		fn = NULL;
+	else
+		err = SCSI_DH_DEV_OFFLINED;
 	kref_put(&pg->kref, release_port_group);
 out:
 	if (fn)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/fnic/fnic.h linux-libre-4.9.52-gnu/drivers/scsi/fnic/fnic.h
--- linux-libre-4.9-gnu/drivers/scsi/fnic/fnic.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/fnic/fnic.h	2017-09-27 08:40:05.000000000 -0400
@@ -248,6 +248,7 @@ struct fnic {
 	struct completion *remove_wait; /* device remove thread blocks */
 
 	atomic_t in_flight;		/* io counter */
+	bool internal_reset_inprogress;
 	u32 _reserved;			/* fill hole */
 	unsigned long state_flags;	/* protected by host lock */
 	enum fnic_state state;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/fnic/fnic_scsi.c linux-libre-4.9.52-gnu/drivers/scsi/fnic/fnic_scsi.c
--- linux-libre-4.9-gnu/drivers/scsi/fnic/fnic_scsi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/fnic/fnic_scsi.c	2017-09-27 08:40:05.000000000 -0400
@@ -2573,6 +2573,19 @@ int fnic_host_reset(struct scsi_cmnd *sc
 	unsigned long wait_host_tmo;
 	struct Scsi_Host *shost = sc->device->host;
 	struct fc_lport *lp = shost_priv(shost);
+	struct fnic *fnic = lport_priv(lp);
+	unsigned long flags;
+
+	spin_lock_irqsave(&fnic->fnic_lock, flags);
+	if (fnic->internal_reset_inprogress == 0) {
+		fnic->internal_reset_inprogress = 1;
+	} else {
+		spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
+			"host reset in progress skipping another host reset\n");
+		return SUCCESS;
+	}
+	spin_unlock_irqrestore(&fnic->fnic_lock, flags);
 
 	/*
 	 * If fnic_reset is successful, wait for fabric login to complete
@@ -2593,6 +2606,9 @@ int fnic_host_reset(struct scsi_cmnd *sc
 		}
 	}
 
+	spin_lock_irqsave(&fnic->fnic_lock, flags);
+	fnic->internal_reset_inprogress = 0;
+	spin_unlock_irqrestore(&fnic->fnic_lock, flags);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/g_NCR5380.c linux-libre-4.9.52-gnu/drivers/scsi/g_NCR5380.c
--- linux-libre-4.9-gnu/drivers/scsi/g_NCR5380.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/g_NCR5380.c	2017-09-27 08:40:05.000000000 -0400
@@ -170,12 +170,12 @@ static int generic_NCR5380_init_one(stru
 		if (ports[i]) {
 			/* At this point we have our region reserved */
 			magic_configure(i, 0, magic); /* no IRQ yet */
-			outb(0xc0, ports[i] + 9);
-			if (inb(ports[i] + 9) != 0x80) {
+			base = ports[i];
+			outb(0xc0, base + 9);
+			if (inb(base + 9) != 0x80) {
 				ret = -ENODEV;
 				goto out_release;
 			}
-			base = ports[i];
 			port_idx = i;
 		} else
 			return -EINVAL;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c linux-libre-4.9.52-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
--- linux-libre-4.9-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c	2017-09-27 08:40:05.000000000 -0400
@@ -22,7 +22,7 @@
  *
  ****************************************************************************/
 
-#define pr_fmt(fmt)     KBUILD_MODNAME ": " fmt
+#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
 
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -45,6 +45,7 @@
 
 #define	INITIAL_SRP_LIMIT	800
 #define	DEFAULT_MAX_SECTORS	256
+#define MAX_TXU			1024 * 1024
 
 static uint max_vdma_size = MAX_H_COPY_RDMA;
 
@@ -81,7 +82,7 @@ static void ibmvscsis_determine_resid(st
 		}
 	} else if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
 		if (se_cmd->data_direction == DMA_TO_DEVICE) {
-			/*  residual data from an overflow write */
+			/* residual data from an overflow write */
 			rsp->flags = SRP_RSP_FLAG_DOOVER;
 			rsp->data_out_res_cnt = cpu_to_be32(residual_count);
 		} else if (se_cmd->data_direction == DMA_FROM_DEVICE) {
@@ -101,7 +102,7 @@ static void ibmvscsis_determine_resid(st
  * and the function returns TRUE.
  *
  * EXECUTION ENVIRONMENT:
- *      Interrupt or Process environment
+ *	Interrupt or Process environment
  */
 static bool connection_broken(struct scsi_info *vscsi)
 {
@@ -324,7 +325,7 @@ static struct viosrp_crq *ibmvscsis_cmd_
 }
 
 /**
- * ibmvscsis_send_init_message() -  send initialize message to the client
+ * ibmvscsis_send_init_message() - send initialize message to the client
  * @vscsi:	Pointer to our adapter structure
  * @format:	Which Init Message format to send
  *
@@ -382,13 +383,13 @@ static long ibmvscsis_check_init_msg(str
 					      vscsi->cmd_q.base_addr);
 		if (crq) {
 			*format = (uint)(crq->format);
-			rc =  ERROR;
+			rc = ERROR;
 			crq->valid = INVALIDATE_CMD_RESP_EL;
 			dma_rmb();
 		}
 	} else {
 		*format = (uint)(crq->format);
-		rc =  ERROR;
+		rc = ERROR;
 		crq->valid = INVALIDATE_CMD_RESP_EL;
 		dma_rmb();
 	}
@@ -397,166 +398,6 @@ static long ibmvscsis_check_init_msg(str
 }
 
 /**
- * ibmvscsis_establish_new_q() - Establish new CRQ queue
- * @vscsi:	Pointer to our adapter structure
- * @new_state:	New state being established after resetting the queue
- *
- * Must be called with interrupt lock held.
- */
-static long ibmvscsis_establish_new_q(struct scsi_info *vscsi,  uint new_state)
-{
-	long rc = ADAPT_SUCCESS;
-	uint format;
-
-	vscsi->flags &= PRESERVE_FLAG_FIELDS;
-	vscsi->rsp_q_timer.timer_pops = 0;
-	vscsi->debit = 0;
-	vscsi->credit = 0;
-
-	rc = vio_enable_interrupts(vscsi->dma_dev);
-	if (rc) {
-		pr_warn("reset_queue: failed to enable interrupts, rc %ld\n",
-			rc);
-		return rc;
-	}
-
-	rc = ibmvscsis_check_init_msg(vscsi, &format);
-	if (rc) {
-		dev_err(&vscsi->dev, "reset_queue: check_init_msg failed, rc %ld\n",
-			rc);
-		return rc;
-	}
-
-	if (format == UNUSED_FORMAT && new_state == WAIT_CONNECTION) {
-		rc = ibmvscsis_send_init_message(vscsi, INIT_MSG);
-		switch (rc) {
-		case H_SUCCESS:
-		case H_DROPPED:
-		case H_CLOSED:
-			rc = ADAPT_SUCCESS;
-			break;
-
-		case H_PARAMETER:
-		case H_HARDWARE:
-			break;
-
-		default:
-			vscsi->state = UNDEFINED;
-			rc = H_HARDWARE;
-			break;
-		}
-	}
-
-	return rc;
-}
-
-/**
- * ibmvscsis_reset_queue() - Reset CRQ Queue
- * @vscsi:	Pointer to our adapter structure
- * @new_state:	New state to establish after resetting the queue
- *
- * This function calls h_free_q and then calls h_reg_q and does all
- * of the bookkeeping to get us back to where we can communicate.
- *
- * Actually, we don't always call h_free_crq.  A problem was discovered
- * where one partition would close and reopen his queue, which would
- * cause his partner to get a transport event, which would cause him to
- * close and reopen his queue, which would cause the original partition
- * to get a transport event, etc., etc.  To prevent this, we don't
- * actually close our queue if the client initiated the reset, (i.e.
- * either we got a transport event or we have detected that the client's
- * queue is gone)
- *
- * EXECUTION ENVIRONMENT:
- *	Process environment, called with interrupt lock held
- */
-static void ibmvscsis_reset_queue(struct scsi_info *vscsi, uint new_state)
-{
-	int bytes;
-	long rc = ADAPT_SUCCESS;
-
-	pr_debug("reset_queue: flags 0x%x\n", vscsi->flags);
-
-	/* don't reset, the client did it for us */
-	if (vscsi->flags & (CLIENT_FAILED | TRANS_EVENT)) {
-		vscsi->flags &=  PRESERVE_FLAG_FIELDS;
-		vscsi->rsp_q_timer.timer_pops = 0;
-		vscsi->debit = 0;
-		vscsi->credit = 0;
-		vscsi->state = new_state;
-		vio_enable_interrupts(vscsi->dma_dev);
-	} else {
-		rc = ibmvscsis_free_command_q(vscsi);
-		if (rc == ADAPT_SUCCESS) {
-			vscsi->state = new_state;
-
-			bytes = vscsi->cmd_q.size * PAGE_SIZE;
-			rc = h_reg_crq(vscsi->dds.unit_id,
-				       vscsi->cmd_q.crq_token, bytes);
-			if (rc == H_CLOSED || rc == H_SUCCESS) {
-				rc = ibmvscsis_establish_new_q(vscsi,
-							       new_state);
-			}
-
-			if (rc != ADAPT_SUCCESS) {
-				pr_debug("reset_queue: reg_crq rc %ld\n", rc);
-
-				vscsi->state = ERR_DISCONNECTED;
-				vscsi->flags |=  RESPONSE_Q_DOWN;
-				ibmvscsis_free_command_q(vscsi);
-			}
-		} else {
-			vscsi->state = ERR_DISCONNECTED;
-			vscsi->flags |= RESPONSE_Q_DOWN;
-		}
-	}
-}
-
-/**
- * ibmvscsis_free_cmd_resources() - Free command resources
- * @vscsi:	Pointer to our adapter structure
- * @cmd:	Command which is not longer in use
- *
- * Must be called with interrupt lock held.
- */
-static void ibmvscsis_free_cmd_resources(struct scsi_info *vscsi,
-					 struct ibmvscsis_cmd *cmd)
-{
-	struct iu_entry *iue = cmd->iue;
-
-	switch (cmd->type) {
-	case TASK_MANAGEMENT:
-	case SCSI_CDB:
-		/*
-		 * When the queue goes down this value is cleared, so it
-		 * cannot be cleared in this general purpose function.
-		 */
-		if (vscsi->debit)
-			vscsi->debit -= 1;
-		break;
-	case ADAPTER_MAD:
-		vscsi->flags &= ~PROCESSING_MAD;
-		break;
-	case UNSET_TYPE:
-		break;
-	default:
-		dev_err(&vscsi->dev, "free_cmd_resources unknown type %d\n",
-			cmd->type);
-		break;
-	}
-
-	cmd->iue = NULL;
-	list_add_tail(&cmd->list, &vscsi->free_cmd);
-	srp_iu_put(iue);
-
-	if (list_empty(&vscsi->active_q) && list_empty(&vscsi->schedule_q) &&
-	    list_empty(&vscsi->waiting_rsp) && (vscsi->flags & WAIT_FOR_IDLE)) {
-		vscsi->flags &= ~WAIT_FOR_IDLE;
-		complete(&vscsi->wait_idle);
-	}
-}
-
-/**
  * ibmvscsis_disconnect() - Helper function to disconnect
  * @work:	Pointer to work_struct, gives access to our adapter structure
  *
@@ -575,7 +416,6 @@ static void ibmvscsis_disconnect(struct
 					       proc_work);
 	u16 new_state;
 	bool wait_idle = false;
-	long rc = ADAPT_SUCCESS;
 
 	spin_lock_bh(&vscsi->intr_lock);
 	new_state = vscsi->new_state;
@@ -589,7 +429,7 @@ static void ibmvscsis_disconnect(struct
 	 * should transitition to the new state
 	 */
 	switch (vscsi->state) {
-	/*  Should never be called while in this state. */
+	/* Should never be called while in this state. */
 	case NO_QUEUE:
 	/*
 	 * Can never transition from this state;
@@ -628,30 +468,24 @@ static void ibmvscsis_disconnect(struct
 			vscsi->state = new_state;
 		break;
 
-	/*
-	 * If this is a transition into an error state.
-	 * a client is attempting to establish a connection
-	 * and has violated the RPA protocol.
-	 * There can be nothing pending on the adapter although
-	 * there can be requests in the command queue.
-	 */
 	case WAIT_ENABLED:
-	case PART_UP_WAIT_ENAB:
 		switch (new_state) {
-		case ERR_DISCONNECT:
-			vscsi->flags |= RESPONSE_Q_DOWN;
+		case UNCONFIGURING:
 			vscsi->state = new_state;
+			vscsi->flags |= RESPONSE_Q_DOWN;
 			vscsi->flags &= ~(SCHEDULE_DISCONNECT |
 					  DISCONNECT_SCHEDULED);
-			ibmvscsis_free_command_q(vscsi);
-			break;
-		case ERR_DISCONNECT_RECONNECT:
-			ibmvscsis_reset_queue(vscsi, WAIT_ENABLED);
+			dma_rmb();
+			if (vscsi->flags & CFG_SLEEPING) {
+				vscsi->flags &= ~CFG_SLEEPING;
+				complete(&vscsi->unconfig);
+			}
 			break;
 
 		/* should never happen */
+		case ERR_DISCONNECT:
+		case ERR_DISCONNECT_RECONNECT:
 		case WAIT_IDLE:
-			rc = ERROR;
 			dev_err(&vscsi->dev, "disconnect: invalid state %d for WAIT_IDLE\n",
 				vscsi->state);
 			break;
@@ -660,6 +494,13 @@ static void ibmvscsis_disconnect(struct
 
 	case WAIT_IDLE:
 		switch (new_state) {
+		case UNCONFIGURING:
+			vscsi->flags |= RESPONSE_Q_DOWN;
+			vscsi->state = new_state;
+			vscsi->flags &= ~(SCHEDULE_DISCONNECT |
+					  DISCONNECT_SCHEDULED);
+			ibmvscsis_free_command_q(vscsi);
+			break;
 		case ERR_DISCONNECT:
 		case ERR_DISCONNECT_RECONNECT:
 			vscsi->state = new_state;
@@ -788,7 +629,6 @@ static void ibmvscsis_post_disconnect(st
 			break;
 
 		case WAIT_ENABLED:
-		case PART_UP_WAIT_ENAB:
 		case WAIT_IDLE:
 		case WAIT_CONNECTION:
 		case CONNECTED:
@@ -806,6 +646,310 @@ static void ibmvscsis_post_disconnect(st
 }
 
 /**
+ * ibmvscsis_handle_init_compl_msg() - Respond to an Init Complete Message
+ * @vscsi:	Pointer to our adapter structure
+ *
+ * Must be called with interrupt lock held.
+ */
+static long ibmvscsis_handle_init_compl_msg(struct scsi_info *vscsi)
+{
+	long rc = ADAPT_SUCCESS;
+
+	switch (vscsi->state) {
+	case NO_QUEUE:
+	case ERR_DISCONNECT:
+	case ERR_DISCONNECT_RECONNECT:
+	case ERR_DISCONNECTED:
+	case UNCONFIGURING:
+	case UNDEFINED:
+		rc = ERROR;
+		break;
+
+	case WAIT_CONNECTION:
+		vscsi->state = CONNECTED;
+		break;
+
+	case WAIT_IDLE:
+	case SRP_PROCESSING:
+	case CONNECTED:
+	case WAIT_ENABLED:
+	default:
+		rc = ERROR;
+		dev_err(&vscsi->dev, "init_msg: invalid state %d to get init compl msg\n",
+			vscsi->state);
+		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT, 0);
+		break;
+	}
+
+	return rc;
+}
+
+/**
+ * ibmvscsis_handle_init_msg() - Respond to an Init Message
+ * @vscsi:	Pointer to our adapter structure
+ *
+ * Must be called with interrupt lock held.
+ */
+static long ibmvscsis_handle_init_msg(struct scsi_info *vscsi)
+{
+	long rc = ADAPT_SUCCESS;
+
+	switch (vscsi->state) {
+	case WAIT_CONNECTION:
+		rc = ibmvscsis_send_init_message(vscsi, INIT_COMPLETE_MSG);
+		switch (rc) {
+		case H_SUCCESS:
+			vscsi->state = CONNECTED;
+			break;
+
+		case H_PARAMETER:
+			dev_err(&vscsi->dev, "init_msg: failed to send, rc %ld\n",
+				rc);
+			ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT, 0);
+			break;
+
+		case H_DROPPED:
+			dev_err(&vscsi->dev, "init_msg: failed to send, rc %ld\n",
+				rc);
+			rc = ERROR;
+			ibmvscsis_post_disconnect(vscsi,
+						  ERR_DISCONNECT_RECONNECT, 0);
+			break;
+
+		case H_CLOSED:
+			pr_warn("init_msg: failed to send, rc %ld\n", rc);
+			rc = 0;
+			break;
+		}
+		break;
+
+	case UNDEFINED:
+		rc = ERROR;
+		break;
+
+	case UNCONFIGURING:
+		break;
+
+	case WAIT_ENABLED:
+	case CONNECTED:
+	case SRP_PROCESSING:
+	case WAIT_IDLE:
+	case NO_QUEUE:
+	case ERR_DISCONNECT:
+	case ERR_DISCONNECT_RECONNECT:
+	case ERR_DISCONNECTED:
+	default:
+		rc = ERROR;
+		dev_err(&vscsi->dev, "init_msg: invalid state %d to get init msg\n",
+			vscsi->state);
+		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT, 0);
+		break;
+	}
+
+	return rc;
+}
+
+/**
+ * ibmvscsis_init_msg() - Respond to an init message
+ * @vscsi:	Pointer to our adapter structure
+ * @crq:	Pointer to CRQ element containing the Init Message
+ *
+ * EXECUTION ENVIRONMENT:
+ *	Interrupt, interrupt lock held
+ */
+static long ibmvscsis_init_msg(struct scsi_info *vscsi, struct viosrp_crq *crq)
+{
+	long rc = ADAPT_SUCCESS;
+
+	pr_debug("init_msg: state 0x%hx\n", vscsi->state);
+
+	rc = h_vioctl(vscsi->dds.unit_id, H_GET_PARTNER_INFO,
+		      (u64)vscsi->map_ioba | ((u64)PAGE_SIZE << 32), 0, 0, 0,
+		      0);
+	if (rc == H_SUCCESS) {
+		vscsi->client_data.partition_number =
+			be64_to_cpu(*(u64 *)vscsi->map_buf);
+		pr_debug("init_msg, part num %d\n",
+			 vscsi->client_data.partition_number);
+	} else {
+		pr_debug("init_msg h_vioctl rc %ld\n", rc);
+		rc = ADAPT_SUCCESS;
+	}
+
+	if (crq->format == INIT_MSG) {
+		rc = ibmvscsis_handle_init_msg(vscsi);
+	} else if (crq->format == INIT_COMPLETE_MSG) {
+		rc = ibmvscsis_handle_init_compl_msg(vscsi);
+	} else {
+		rc = ERROR;
+		dev_err(&vscsi->dev, "init_msg: invalid format %d\n",
+			(uint)crq->format);
+		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT, 0);
+	}
+
+	return rc;
+}
+
+/**
+ * ibmvscsis_establish_new_q() - Establish new CRQ queue
+ * @vscsi:	Pointer to our adapter structure
+ *
+ * Must be called with interrupt lock held.
+ */
+static long ibmvscsis_establish_new_q(struct scsi_info *vscsi)
+{
+	long rc = ADAPT_SUCCESS;
+	uint format;
+
+	vscsi->flags &= PRESERVE_FLAG_FIELDS;
+	vscsi->rsp_q_timer.timer_pops = 0;
+	vscsi->debit = 0;
+	vscsi->credit = 0;
+
+	rc = vio_enable_interrupts(vscsi->dma_dev);
+	if (rc) {
+		pr_warn("establish_new_q: failed to enable interrupts, rc %ld\n",
+			rc);
+		return rc;
+	}
+
+	rc = ibmvscsis_check_init_msg(vscsi, &format);
+	if (rc) {
+		dev_err(&vscsi->dev, "establish_new_q: check_init_msg failed, rc %ld\n",
+			rc);
+		return rc;
+	}
+
+	if (format == UNUSED_FORMAT) {
+		rc = ibmvscsis_send_init_message(vscsi, INIT_MSG);
+		switch (rc) {
+		case H_SUCCESS:
+		case H_DROPPED:
+		case H_CLOSED:
+			rc = ADAPT_SUCCESS;
+			break;
+
+		case H_PARAMETER:
+		case H_HARDWARE:
+			break;
+
+		default:
+			vscsi->state = UNDEFINED;
+			rc = H_HARDWARE;
+			break;
+		}
+	} else if (format == INIT_MSG) {
+		rc = ibmvscsis_handle_init_msg(vscsi);
+	}
+
+	return rc;
+}
+
+/**
+ * ibmvscsis_reset_queue() - Reset CRQ Queue
+ * @vscsi:	Pointer to our adapter structure
+ *
+ * This function calls h_free_q and then calls h_reg_q and does all
+ * of the bookkeeping to get us back to where we can communicate.
+ *
+ * Actually, we don't always call h_free_crq.  A problem was discovered
+ * where one partition would close and reopen his queue, which would
+ * cause his partner to get a transport event, which would cause him to
+ * close and reopen his queue, which would cause the original partition
+ * to get a transport event, etc., etc.  To prevent this, we don't
+ * actually close our queue if the client initiated the reset, (i.e.
+ * either we got a transport event or we have detected that the client's
+ * queue is gone)
+ *
+ * EXECUTION ENVIRONMENT:
+ *	Process environment, called with interrupt lock held
+ */
+static void ibmvscsis_reset_queue(struct scsi_info *vscsi)
+{
+	int bytes;
+	long rc = ADAPT_SUCCESS;
+
+	pr_debug("reset_queue: flags 0x%x\n", vscsi->flags);
+
+	/* don't reset, the client did it for us */
+	if (vscsi->flags & (CLIENT_FAILED | TRANS_EVENT)) {
+		vscsi->flags &= PRESERVE_FLAG_FIELDS;
+		vscsi->rsp_q_timer.timer_pops = 0;
+		vscsi->debit = 0;
+		vscsi->credit = 0;
+		vscsi->state = WAIT_CONNECTION;
+		vio_enable_interrupts(vscsi->dma_dev);
+	} else {
+		rc = ibmvscsis_free_command_q(vscsi);
+		if (rc == ADAPT_SUCCESS) {
+			vscsi->state = WAIT_CONNECTION;
+
+			bytes = vscsi->cmd_q.size * PAGE_SIZE;
+			rc = h_reg_crq(vscsi->dds.unit_id,
+				       vscsi->cmd_q.crq_token, bytes);
+			if (rc == H_CLOSED || rc == H_SUCCESS) {
+				rc = ibmvscsis_establish_new_q(vscsi);
+			}
+
+			if (rc != ADAPT_SUCCESS) {
+				pr_debug("reset_queue: reg_crq rc %ld\n", rc);
+
+				vscsi->state = ERR_DISCONNECTED;
+				vscsi->flags |= RESPONSE_Q_DOWN;
+				ibmvscsis_free_command_q(vscsi);
+			}
+		} else {
+			vscsi->state = ERR_DISCONNECTED;
+			vscsi->flags |= RESPONSE_Q_DOWN;
+		}
+	}
+}
+
+/**
+ * ibmvscsis_free_cmd_resources() - Free command resources
+ * @vscsi:	Pointer to our adapter structure
+ * @cmd:	Command which is not longer in use
+ *
+ * Must be called with interrupt lock held.
+ */
+static void ibmvscsis_free_cmd_resources(struct scsi_info *vscsi,
+					 struct ibmvscsis_cmd *cmd)
+{
+	struct iu_entry *iue = cmd->iue;
+
+	switch (cmd->type) {
+	case TASK_MANAGEMENT:
+	case SCSI_CDB:
+		/*
+		 * When the queue goes down this value is cleared, so it
+		 * cannot be cleared in this general purpose function.
+		 */
+		if (vscsi->debit)
+			vscsi->debit -= 1;
+		break;
+	case ADAPTER_MAD:
+		vscsi->flags &= ~PROCESSING_MAD;
+		break;
+	case UNSET_TYPE:
+		break;
+	default:
+		dev_err(&vscsi->dev, "free_cmd_resources unknown type %d\n",
+			cmd->type);
+		break;
+	}
+
+	cmd->iue = NULL;
+	list_add_tail(&cmd->list, &vscsi->free_cmd);
+	srp_iu_put(iue);
+
+	if (list_empty(&vscsi->active_q) && list_empty(&vscsi->schedule_q) &&
+	    list_empty(&vscsi->waiting_rsp) && (vscsi->flags & WAIT_FOR_IDLE)) {
+		vscsi->flags &= ~WAIT_FOR_IDLE;
+		complete(&vscsi->wait_idle);
+	}
+}
+
+/**
  * ibmvscsis_trans_event() - Handle a Transport Event
  * @vscsi:	Pointer to our adapter structure
  * @crq:	Pointer to CRQ entry containing the Transport Event
@@ -863,10 +1007,6 @@ static long ibmvscsis_trans_event(struct
 						   TRANS_EVENT));
 			break;
 
-		case PART_UP_WAIT_ENAB:
-			vscsi->state = WAIT_ENABLED;
-			break;
-
 		case SRP_PROCESSING:
 			if ((vscsi->debit > 0) ||
 			    !list_empty(&vscsi->schedule_q) ||
@@ -895,7 +1035,7 @@ static long ibmvscsis_trans_event(struct
 		}
 	}
 
-	rc =  vscsi->flags & SCHEDULE_DISCONNECT;
+	rc = vscsi->flags & SCHEDULE_DISCONNECT;
 
 	pr_debug("Leaving trans_event: flags 0x%x, state 0x%hx, rc %ld\n",
 		 vscsi->flags, vscsi->state, rc);
@@ -1029,6 +1169,9 @@ static struct ibmvscsis_cmd *ibmvscsis_g
 		cmd = list_first_entry_or_null(&vscsi->free_cmd,
 					       struct ibmvscsis_cmd, list);
 		if (cmd) {
+			if (cmd->abort_cmd)
+				cmd->abort_cmd = NULL;
+			cmd->flags &= ~(DELAY_SEND);
 			list_del(&cmd->list);
 			cmd->iue = iue;
 			cmd->type = UNSET_TYPE;
@@ -1066,16 +1209,28 @@ static void ibmvscsis_adapter_idle(struc
 		free_qs = true;
 
 	switch (vscsi->state) {
+	case UNCONFIGURING:
+		ibmvscsis_free_command_q(vscsi);
+		dma_rmb();
+		isync();
+		if (vscsi->flags & CFG_SLEEPING) {
+			vscsi->flags &= ~CFG_SLEEPING;
+			complete(&vscsi->unconfig);
+		}
+		break;
 	case ERR_DISCONNECT_RECONNECT:
-		ibmvscsis_reset_queue(vscsi, WAIT_CONNECTION);
+		ibmvscsis_reset_queue(vscsi);
 		pr_debug("adapter_idle, disc_rec: flags 0x%x\n", vscsi->flags);
 		break;
 
 	case ERR_DISCONNECT:
 		ibmvscsis_free_command_q(vscsi);
-		vscsi->flags &= ~DISCONNECT_SCHEDULED;
+		vscsi->flags &= ~(SCHEDULE_DISCONNECT | DISCONNECT_SCHEDULED);
 		vscsi->flags |= RESPONSE_Q_DOWN;
-		vscsi->state = ERR_DISCONNECTED;
+		if (vscsi->tport.enabled)
+			vscsi->state = ERR_DISCONNECTED;
+		else
+			vscsi->state = WAIT_ENABLED;
 		pr_debug("adapter_idle, disc: flags 0x%x, state 0x%hx\n",
 			 vscsi->flags, vscsi->state);
 		break;
@@ -1220,7 +1375,7 @@ static long ibmvscsis_copy_crq_packet(st
  * @iue:	Information Unit containing the Adapter Info MAD request
  *
  * EXECUTION ENVIRONMENT:
- *	Interrupt adpater lock is held
+ *	Interrupt adapter lock is held
  */
 static long ibmvscsis_adapter_info(struct scsi_info *vscsi,
 				   struct iu_entry *iue)
@@ -1239,7 +1394,7 @@ static long ibmvscsis_adapter_info(struc
 	}
 
 	info = dma_alloc_coherent(&vscsi->dma_dev->dev, sizeof(*info), &token,
-				  GFP_KERNEL);
+				  GFP_ATOMIC);
 	if (!info) {
 		dev_err(&vscsi->dev, "bad dma_alloc_coherent %p\n",
 			iue->target);
@@ -1291,7 +1446,7 @@ static long ibmvscsis_adapter_info(struc
 	info->mad_version = cpu_to_be32(MAD_VERSION_1);
 	info->os_type = cpu_to_be32(LINUX);
 	memset(&info->port_max_txu[0], 0, sizeof(info->port_max_txu));
-	info->port_max_txu[0] = cpu_to_be32(128 * PAGE_SIZE);
+	info->port_max_txu[0] = cpu_to_be32(MAX_TXU);
 
 	dma_wmb();
 	rc = h_copy_rdma(sizeof(*info), vscsi->dds.window[LOCAL].liobn,
@@ -1357,7 +1512,7 @@ static int ibmvscsis_cap_mad(struct scsi
 	}
 
 	cap = dma_alloc_coherent(&vscsi->dma_dev->dev, olen, &token,
-				 GFP_KERNEL);
+				 GFP_ATOMIC);
 	if (!cap) {
 		dev_err(&vscsi->dev, "bad dma_alloc_coherent %p\n",
 			iue->target);
@@ -1596,45 +1751,99 @@ static void srp_snd_msg_failed(struct sc
 static void ibmvscsis_send_messages(struct scsi_info *vscsi)
 {
 	u64 msg_hi = 0;
-	/* note do not attmempt to access the IU_data_ptr with this pointer
+	/* note do not attempt to access the IU_data_ptr with this pointer
 	 * it is not valid
 	 */
 	struct viosrp_crq *crq = (struct viosrp_crq *)&msg_hi;
 	struct ibmvscsis_cmd *cmd, *nxt;
 	struct iu_entry *iue;
 	long rc = ADAPT_SUCCESS;
+	bool retry = false;
 
 	if (!(vscsi->flags & RESPONSE_Q_DOWN)) {
-		list_for_each_entry_safe(cmd, nxt, &vscsi->waiting_rsp, list) {
-			iue = cmd->iue;
+		do {
+			retry = false;
+			list_for_each_entry_safe(cmd, nxt, &vscsi->waiting_rsp,
+						 list) {
+				/*
+				 * Check to make sure abort cmd gets processed
+				 * prior to the abort tmr cmd
+				 */
+				if (cmd->flags & DELAY_SEND)
+					continue;
 
-			crq->valid = VALID_CMD_RESP_EL;
-			crq->format = cmd->rsp.format;
+				if (cmd->abort_cmd) {
+					retry = true;
+					cmd->abort_cmd->flags &= ~(DELAY_SEND);
+					cmd->abort_cmd = NULL;
+				}
 
-			if (cmd->flags & CMD_FAST_FAIL)
-				crq->status = VIOSRP_ADAPTER_FAIL;
+				/*
+				 * If CMD_T_ABORTED w/o CMD_T_TAS scenarios and
+				 * the case where LIO issued a
+				 * ABORT_TASK: Sending TMR_TASK_DOES_NOT_EXIST
+				 * case then we dont send a response, since it
+				 * was already done.
+				 */
+				if (cmd->se_cmd.transport_state & CMD_T_ABORTED &&
+				    !(cmd->se_cmd.transport_state & CMD_T_TAS)) {
+					list_del(&cmd->list);
+					ibmvscsis_free_cmd_resources(vscsi,
+								     cmd);
+					/*
+					 * With a successfully aborted op
+					 * through LIO we want to increment the
+					 * the vscsi credit so that when we dont
+					 * send a rsp to the original scsi abort
+					 * op (h_send_crq), but the tm rsp to
+					 * the abort is sent, the credit is
+					 * correctly sent with the abort tm rsp.
+					 * We would need 1 for the abort tm rsp
+					 * and 1 credit for the aborted scsi op.
+					 * Thus we need to increment here.
+					 * Also we want to increment the credit
+					 * here because we want to make sure
+					 * cmd is actually released first
+					 * otherwise the client will think it
+					 * it can send a new cmd, and we could
+					 * find ourselves short of cmd elements.
+					 */
+					vscsi->credit += 1;
+				} else {
+					iue = cmd->iue;
 
-			crq->IU_length = cpu_to_be16(cmd->rsp.len);
+					crq->valid = VALID_CMD_RESP_EL;
+					crq->format = cmd->rsp.format;
 
-			rc = h_send_crq(vscsi->dma_dev->unit_address,
-					be64_to_cpu(msg_hi),
-					be64_to_cpu(cmd->rsp.tag));
+					if (cmd->flags & CMD_FAST_FAIL)
+						crq->status = VIOSRP_ADAPTER_FAIL;
 
-			pr_debug("send_messages: tag 0x%llx, rc %ld\n",
-				 be64_to_cpu(cmd->rsp.tag), rc);
+					crq->IU_length = cpu_to_be16(cmd->rsp.len);
 
-			/* if all ok free up the command element resources */
-			if (rc == H_SUCCESS) {
-				/* some movement has occurred */
-				vscsi->rsp_q_timer.timer_pops = 0;
-				list_del(&cmd->list);
+					rc = h_send_crq(vscsi->dma_dev->unit_address,
+							be64_to_cpu(msg_hi),
+							be64_to_cpu(cmd->rsp.tag));
 
-				ibmvscsis_free_cmd_resources(vscsi, cmd);
-			} else {
-				srp_snd_msg_failed(vscsi, rc);
-				break;
+					pr_debug("send_messages: cmd %p, tag 0x%llx, rc %ld\n",
+						 cmd, be64_to_cpu(cmd->rsp.tag), rc);
+
+					/* if all ok free up the command
+					 * element resources
+					 */
+					if (rc == H_SUCCESS) {
+						/* some movement has occurred */
+						vscsi->rsp_q_timer.timer_pops = 0;
+						list_del(&cmd->list);
+
+						ibmvscsis_free_cmd_resources(vscsi,
+									     cmd);
+					} else {
+						srp_snd_msg_failed(vscsi, rc);
+						break;
+					}
+				}
 			}
-		}
+		} while (retry);
 
 		if (!rc) {
 			/*
@@ -1691,7 +1900,7 @@ static void ibmvscsis_send_mad_resp(stru
  * @crq:	Pointer to the CRQ entry containing the MAD request
  *
  * EXECUTION ENVIRONMENT:
- *	Interrupt  called with adapter lock held
+ *	Interrupt, called with adapter lock held
  */
 static long ibmvscsis_mad(struct scsi_info *vscsi, struct viosrp_crq *crq)
 {
@@ -1745,14 +1954,7 @@ static long ibmvscsis_mad(struct scsi_in
 
 		pr_debug("mad: type %d\n", be32_to_cpu(mad->type));
 
-		if (be16_to_cpu(mad->length) < 0) {
-			dev_err(&vscsi->dev, "mad: length is < 0\n");
-			ibmvscsis_post_disconnect(vscsi,
-						  ERR_DISCONNECT_RECONNECT, 0);
-			rc = SRP_VIOLATION;
-		} else {
-			rc = ibmvscsis_process_mad(vscsi, iue);
-		}
+		rc = ibmvscsis_process_mad(vscsi, iue);
 
 		pr_debug("mad: status %hd, rc %ld\n", be16_to_cpu(mad->status),
 			 rc);
@@ -1864,7 +2066,7 @@ static long ibmvscsis_srp_login_rej(stru
 		break;
 	case H_PERMISSION:
 		if (connection_broken(vscsi))
-			flag_bits =  RESPONSE_Q_DOWN | CLIENT_FAILED;
+			flag_bits = RESPONSE_Q_DOWN | CLIENT_FAILED;
 		dev_err(&vscsi->dev, "login_rej: error copying to client, rc %ld\n",
 			rc);
 		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT,
@@ -2187,156 +2389,6 @@ static long ibmvscsis_ping_response(stru
 }
 
 /**
- * ibmvscsis_handle_init_compl_msg() - Respond to an Init Complete Message
- * @vscsi:	Pointer to our adapter structure
- *
- * Must be called with interrupt lock held.
- */
-static long ibmvscsis_handle_init_compl_msg(struct scsi_info *vscsi)
-{
-	long rc = ADAPT_SUCCESS;
-
-	switch (vscsi->state) {
-	case NO_QUEUE:
-	case ERR_DISCONNECT:
-	case ERR_DISCONNECT_RECONNECT:
-	case ERR_DISCONNECTED:
-	case UNCONFIGURING:
-	case UNDEFINED:
-		rc = ERROR;
-		break;
-
-	case WAIT_CONNECTION:
-		vscsi->state = CONNECTED;
-		break;
-
-	case WAIT_IDLE:
-	case SRP_PROCESSING:
-	case CONNECTED:
-	case WAIT_ENABLED:
-	case PART_UP_WAIT_ENAB:
-	default:
-		rc = ERROR;
-		dev_err(&vscsi->dev, "init_msg: invalid state %d to get init compl msg\n",
-			vscsi->state);
-		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT, 0);
-		break;
-	}
-
-	return rc;
-}
-
-/**
- * ibmvscsis_handle_init_msg() - Respond to an Init Message
- * @vscsi:	Pointer to our adapter structure
- *
- * Must be called with interrupt lock held.
- */
-static long ibmvscsis_handle_init_msg(struct scsi_info *vscsi)
-{
-	long rc = ADAPT_SUCCESS;
-
-	switch (vscsi->state) {
-	case WAIT_ENABLED:
-		vscsi->state = PART_UP_WAIT_ENAB;
-		break;
-
-	case WAIT_CONNECTION:
-		rc = ibmvscsis_send_init_message(vscsi, INIT_COMPLETE_MSG);
-		switch (rc) {
-		case H_SUCCESS:
-			vscsi->state = CONNECTED;
-			break;
-
-		case H_PARAMETER:
-			dev_err(&vscsi->dev, "init_msg: failed to send, rc %ld\n",
-				rc);
-			ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT, 0);
-			break;
-
-		case H_DROPPED:
-			dev_err(&vscsi->dev, "init_msg: failed to send, rc %ld\n",
-				rc);
-			rc = ERROR;
-			ibmvscsis_post_disconnect(vscsi,
-						  ERR_DISCONNECT_RECONNECT, 0);
-			break;
-
-		case H_CLOSED:
-			pr_warn("init_msg: failed to send, rc %ld\n", rc);
-			rc = 0;
-			break;
-		}
-		break;
-
-	case UNDEFINED:
-		rc = ERROR;
-		break;
-
-	case UNCONFIGURING:
-		break;
-
-	case PART_UP_WAIT_ENAB:
-	case CONNECTED:
-	case SRP_PROCESSING:
-	case WAIT_IDLE:
-	case NO_QUEUE:
-	case ERR_DISCONNECT:
-	case ERR_DISCONNECT_RECONNECT:
-	case ERR_DISCONNECTED:
-	default:
-		rc = ERROR;
-		dev_err(&vscsi->dev, "init_msg: invalid state %d to get init msg\n",
-			vscsi->state);
-		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT, 0);
-		break;
-	}
-
-	return rc;
-}
-
-/**
- * ibmvscsis_init_msg() - Respond to an init message
- * @vscsi:	Pointer to our adapter structure
- * @crq:	Pointer to CRQ element containing the Init Message
- *
- * EXECUTION ENVIRONMENT:
- *	Interrupt, interrupt lock held
- */
-static long ibmvscsis_init_msg(struct scsi_info *vscsi, struct viosrp_crq *crq)
-{
-	long rc = ADAPT_SUCCESS;
-
-	pr_debug("init_msg: state 0x%hx\n", vscsi->state);
-
-	rc = h_vioctl(vscsi->dds.unit_id, H_GET_PARTNER_INFO,
-		      (u64)vscsi->map_ioba | ((u64)PAGE_SIZE << 32), 0, 0, 0,
-		      0);
-	if (rc == H_SUCCESS) {
-		vscsi->client_data.partition_number =
-			be64_to_cpu(*(u64 *)vscsi->map_buf);
-		pr_debug("init_msg, part num %d\n",
-			 vscsi->client_data.partition_number);
-	} else {
-		pr_debug("init_msg h_vioctl rc %ld\n", rc);
-		rc = ADAPT_SUCCESS;
-	}
-
-	if (crq->format == INIT_MSG) {
-		rc = ibmvscsis_handle_init_msg(vscsi);
-	} else if (crq->format == INIT_COMPLETE_MSG) {
-		rc = ibmvscsis_handle_init_compl_msg(vscsi);
-	} else {
-		rc = ERROR;
-		dev_err(&vscsi->dev, "init_msg: invalid format %d\n",
-			(uint)crq->format);
-		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT, 0);
-	}
-
-	return rc;
-}
-
-/**
  * ibmvscsis_parse_command() - Parse an element taken from the cmd rsp queue.
  * @vscsi:	Pointer to our adapter structure
  * @crq:	Pointer to CRQ element containing the SRP request
@@ -2391,7 +2443,7 @@ static long ibmvscsis_parse_command(stru
 		break;
 
 	case VALID_TRANS_EVENT:
-		rc =  ibmvscsis_trans_event(vscsi, crq);
+		rc = ibmvscsis_trans_event(vscsi, crq);
 		break;
 
 	case VALID_INIT_MSG:
@@ -2522,7 +2574,6 @@ static void ibmvscsis_parse_cmd(struct s
 		dev_err(&vscsi->dev, "0x%llx: parsing SRP descriptor table failed.\n",
 			srp->tag);
 		goto fail;
-		return;
 	}
 
 	cmd->rsp.sol_not = srp->sol_not;
@@ -2559,6 +2610,10 @@ static void ibmvscsis_parse_cmd(struct s
 			       data_len, attr, dir, 0);
 	if (rc) {
 		dev_err(&vscsi->dev, "target_submit_cmd failed, rc %d\n", rc);
+		spin_lock_bh(&vscsi->intr_lock);
+		list_del(&cmd->list);
+		ibmvscsis_free_cmd_resources(vscsi, cmd);
+		spin_unlock_bh(&vscsi->intr_lock);
 		goto fail;
 	}
 	return;
@@ -2638,6 +2693,9 @@ static void ibmvscsis_parse_task(struct
 		if (rc) {
 			dev_err(&vscsi->dev, "target_submit_tmr failed, rc %d\n",
 				rc);
+			spin_lock_bh(&vscsi->intr_lock);
+			list_del(&cmd->list);
+			spin_unlock_bh(&vscsi->intr_lock);
 			cmd->se_cmd.se_tmr_req->response =
 				TMR_FUNCTION_REJECTED;
 		}
@@ -2706,6 +2764,7 @@ static int ibmvscsis_alloc_cmds(struct s
 
 	for (i = 0, cmd = (struct ibmvscsis_cmd *)vscsi->cmd_pool; i < num;
 	     i++, cmd++) {
+		cmd->abort_cmd = NULL;
 		cmd->adapter = vscsi;
 		INIT_WORK(&cmd->work, ibmvscsis_scheduler);
 		list_add_tail(&cmd->list, &vscsi->free_cmd);
@@ -2786,36 +2845,6 @@ static irqreturn_t ibmvscsis_interrupt(i
 }
 
 /**
- * ibmvscsis_check_q() - Helper function to Check Init Message Valid
- * @vscsi:	Pointer to our adapter structure
- *
- * Checks if a initialize message was queued by the initiatior
- * while the timing window was open.  This function is called from
- * probe after the CRQ is created and interrupts are enabled.
- * It would only be used by adapters who wait for some event before
- * completing the init handshake with the client.  For ibmvscsi, this
- * event is waiting for the port to be enabled.
- *
- * EXECUTION ENVIRONMENT:
- *	Process level only, interrupt lock held
- */
-static long ibmvscsis_check_q(struct scsi_info *vscsi)
-{
-	uint format;
-	long rc;
-
-	rc = ibmvscsis_check_init_msg(vscsi, &format);
-	if (rc)
-		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT_RECONNECT, 0);
-	else if (format == UNUSED_FORMAT)
-		vscsi->state = WAIT_ENABLED;
-	else
-		vscsi->state = PART_UP_WAIT_ENAB;
-
-	return rc;
-}
-
-/**
  * ibmvscsis_enable_change_state() - Set new state based on enabled status
  * @vscsi:	Pointer to our adapter structure
  *
@@ -2826,77 +2855,19 @@ static long ibmvscsis_check_q(struct scs
  */
 static long ibmvscsis_enable_change_state(struct scsi_info *vscsi)
 {
+	int bytes;
 	long rc = ADAPT_SUCCESS;
 
-handle_state_change:
-	switch (vscsi->state) {
-	case WAIT_ENABLED:
-		rc = ibmvscsis_send_init_message(vscsi, INIT_MSG);
-		switch (rc) {
-		case H_SUCCESS:
-		case H_DROPPED:
-		case H_CLOSED:
-			vscsi->state =  WAIT_CONNECTION;
-			rc = ADAPT_SUCCESS;
-			break;
-
-		case H_PARAMETER:
-			break;
-
-		case H_HARDWARE:
-			break;
-
-		default:
-			vscsi->state = UNDEFINED;
-			rc = H_HARDWARE;
-			break;
-		}
-		break;
-	case PART_UP_WAIT_ENAB:
-		rc = ibmvscsis_send_init_message(vscsi, INIT_COMPLETE_MSG);
-		switch (rc) {
-		case H_SUCCESS:
-			vscsi->state = CONNECTED;
-			rc = ADAPT_SUCCESS;
-			break;
-
-		case H_DROPPED:
-		case H_CLOSED:
-			vscsi->state = WAIT_ENABLED;
-			goto handle_state_change;
-
-		case H_PARAMETER:
-			break;
-
-		case H_HARDWARE:
-			break;
-
-		default:
-			rc = H_HARDWARE;
-			break;
-		}
-		break;
-
-	case WAIT_CONNECTION:
-	case WAIT_IDLE:
-	case SRP_PROCESSING:
-	case CONNECTED:
-		rc = ADAPT_SUCCESS;
-		break;
-		/* should not be able to get here */
-	case UNCONFIGURING:
-		rc = ERROR;
-		vscsi->state = UNDEFINED;
-		break;
+	bytes = vscsi->cmd_q.size * PAGE_SIZE;
+	rc = h_reg_crq(vscsi->dds.unit_id, vscsi->cmd_q.crq_token, bytes);
+	if (rc == H_CLOSED || rc == H_SUCCESS) {
+		vscsi->state = WAIT_CONNECTION;
+		rc = ibmvscsis_establish_new_q(vscsi);
+	}
 
-		/* driver should never allow this to happen */
-	case ERR_DISCONNECT:
-	case ERR_DISCONNECT_RECONNECT:
-	default:
-		dev_err(&vscsi->dev, "in invalid state %d during enable_change_state\n",
-			vscsi->state);
-		rc = ADAPT_SUCCESS;
-		break;
+	if (rc != ADAPT_SUCCESS) {
+		vscsi->state = ERR_DISCONNECTED;
+		vscsi->flags |= RESPONSE_Q_DOWN;
 	}
 
 	return rc;
@@ -2916,7 +2887,6 @@ handle_state_change:
  */
 static long ibmvscsis_create_command_q(struct scsi_info *vscsi, int num_cmds)
 {
-	long rc = 0;
 	int pages;
 	struct vio_dev *vdev = vscsi->dma_dev;
 
@@ -2940,22 +2910,7 @@ static long ibmvscsis_create_command_q(s
 		return -ENOMEM;
 	}
 
-	rc =  h_reg_crq(vscsi->dds.unit_id, vscsi->cmd_q.crq_token, PAGE_SIZE);
-	if (rc) {
-		if (rc == H_CLOSED) {
-			vscsi->state = WAIT_ENABLED;
-			rc = 0;
-		} else {
-			dma_unmap_single(&vdev->dev, vscsi->cmd_q.crq_token,
-					 PAGE_SIZE, DMA_BIDIRECTIONAL);
-			free_page((unsigned long)vscsi->cmd_q.base_addr);
-			rc = -ENODEV;
-		}
-	} else {
-		vscsi->state = WAIT_ENABLED;
-	}
-
-	return rc;
+	return 0;
 }
 
 /**
@@ -3028,10 +2983,7 @@ static long srp_build_response(struct sc
 
 	rsp->opcode = SRP_RSP;
 
-	if (vscsi->credit > 0 && vscsi->state == SRP_PROCESSING)
-		rsp->req_lim_delta = cpu_to_be32(vscsi->credit);
-	else
-		rsp->req_lim_delta = cpu_to_be32(1 + vscsi->credit);
+	rsp->req_lim_delta = cpu_to_be32(1 + vscsi->credit);
 	rsp->tag = cmd->rsp.tag;
 	rsp->flags = 0;
 
@@ -3270,7 +3222,7 @@ static void ibmvscsis_handle_crq(unsigne
 	/*
 	 * if we are in a path where we are waiting for all pending commands
 	 * to complete because we received a transport event and anything in
-	 * the command queue is for a new connection,  do nothing
+	 * the command queue is for a new connection, do nothing
 	 */
 	if (TARGET_STOP(vscsi)) {
 		vio_enable_interrupts(vscsi->dma_dev);
@@ -3314,7 +3266,7 @@ cmd_work:
 				 * everything but transport events on the queue
 				 *
 				 * need to decrement the queue index so we can
-				 * look at the elment again
+				 * look at the element again
 				 */
 				if (vscsi->cmd_q.index)
 					vscsi->cmd_q.index -= 1;
@@ -3378,7 +3330,8 @@ static int ibmvscsis_probe(struct vio_de
 	INIT_LIST_HEAD(&vscsi->waiting_rsp);
 	INIT_LIST_HEAD(&vscsi->active_q);
 
-	snprintf(vscsi->tport.tport_name, 256, "%s", dev_name(&vdev->dev));
+	snprintf(vscsi->tport.tport_name, IBMVSCSIS_NAMELEN, "%s",
+		 dev_name(&vdev->dev));
 
 	pr_debug("probe tport_name: %s\n", vscsi->tport.tport_name);
 
@@ -3393,6 +3346,9 @@ static int ibmvscsis_probe(struct vio_de
 	strncat(vscsi->eye, vdev->name, MAX_EYE);
 
 	vscsi->dds.unit_id = vdev->unit_address;
+	strncpy(vscsi->dds.partition_name, partition_name,
+		sizeof(vscsi->dds.partition_name));
+	vscsi->dds.partition_num = partition_number;
 
 	spin_lock_bh(&ibmvscsis_dev_lock);
 	list_add_tail(&vscsi->list, &ibmvscsis_dev_list);
@@ -3469,6 +3425,7 @@ static int ibmvscsis_probe(struct vio_de
 		     (unsigned long)vscsi);
 
 	init_completion(&vscsi->wait_idle);
+	init_completion(&vscsi->unconfig);
 
 	snprintf(wq_name, 24, "ibmvscsis%s", dev_name(&vdev->dev));
 	vscsi->work_q = create_workqueue(wq_name);
@@ -3485,31 +3442,12 @@ static int ibmvscsis_probe(struct vio_de
 		goto destroy_WQ;
 	}
 
-	spin_lock_bh(&vscsi->intr_lock);
-	vio_enable_interrupts(vdev);
-	if (rc) {
-		dev_err(&vscsi->dev, "enabling interrupts failed, rc %d\n", rc);
-		rc = -ENODEV;
-		spin_unlock_bh(&vscsi->intr_lock);
-		goto free_irq;
-	}
-
-	if (ibmvscsis_check_q(vscsi)) {
-		rc = ERROR;
-		dev_err(&vscsi->dev, "probe: check_q failed, rc %d\n", rc);
-		spin_unlock_bh(&vscsi->intr_lock);
-		goto disable_interrupt;
-	}
-	spin_unlock_bh(&vscsi->intr_lock);
+	vscsi->state = WAIT_ENABLED;
 
 	dev_set_drvdata(&vdev->dev, vscsi);
 
 	return 0;
 
-disable_interrupt:
-	vio_disable_interrupts(vdev);
-free_irq:
-	free_irq(vdev->irq, vscsi);
 destroy_WQ:
 	destroy_workqueue(vscsi->work_q);
 unmap_buf:
@@ -3543,10 +3481,11 @@ static int ibmvscsis_remove(struct vio_d
 
 	pr_debug("remove (%s)\n", dev_name(&vscsi->dma_dev->dev));
 
-	/*
-	 * TBD: Need to handle if there are commands on the waiting_rsp q
-	 *      Actually, can there still be cmds outstanding to tcm?
-	 */
+	spin_lock_bh(&vscsi->intr_lock);
+	ibmvscsis_post_disconnect(vscsi, UNCONFIGURING, 0);
+	vscsi->flags |= CFG_SLEEPING;
+	spin_unlock_bh(&vscsi->intr_lock);
+	wait_for_completion(&vscsi->unconfig);
 
 	vio_disable_interrupts(vdev);
 	free_irq(vdev->irq, vscsi);
@@ -3555,7 +3494,6 @@ static int ibmvscsis_remove(struct vio_d
 			 DMA_BIDIRECTIONAL);
 	kfree(vscsi->map_buf);
 	tasklet_kill(&vscsi->work_task);
-	ibmvscsis_unregister_command_q(vscsi);
 	ibmvscsis_destroy_command_q(vscsi);
 	ibmvscsis_freetimer(vscsi);
 	ibmvscsis_free_cmds(vscsi);
@@ -3609,7 +3547,7 @@ static int ibmvscsis_get_system_info(voi
 
 	num = of_get_property(rootdn, "ibm,partition-no", NULL);
 	if (num)
-		partition_number = *num;
+		partition_number = of_read_number(num, 1);
 
 	of_node_put(rootdn);
 
@@ -3695,14 +3633,25 @@ static int ibmvscsis_write_pending(struc
 {
 	struct ibmvscsis_cmd *cmd = container_of(se_cmd, struct ibmvscsis_cmd,
 						 se_cmd);
+	struct scsi_info *vscsi = cmd->adapter;
 	struct iu_entry *iue = cmd->iue;
 	int rc;
 
+	/*
+	 * If CLIENT_FAILED OR RESPONSE_Q_DOWN, then just return success
+	 * since LIO can't do anything about it, and we dont want to
+	 * attempt an srp_transfer_data.
+	 */
+	if ((vscsi->flags & (CLIENT_FAILED | RESPONSE_Q_DOWN))) {
+		pr_err("write_pending failed since: %d\n", vscsi->flags);
+		return 0;
+	}
+
 	rc = srp_transfer_data(cmd, &vio_iu(iue)->srp.cmd, ibmvscsis_rdma,
 			       1, 1);
 	if (rc) {
 		pr_err("srp_transfer_data() failed: %d\n", rc);
-		return -EAGAIN;
+		return -EIO;
 	}
 	/*
 	 * We now tell TCM to add this WRITE CDB directly into the TCM storage
@@ -3776,11 +3725,28 @@ static void ibmvscsis_queue_tm_rsp(struc
 	struct ibmvscsis_cmd *cmd = container_of(se_cmd, struct ibmvscsis_cmd,
 						 se_cmd);
 	struct scsi_info *vscsi = cmd->adapter;
+	struct ibmvscsis_cmd *cmd_itr;
+	struct iu_entry *iue = iue = cmd->iue;
+	struct srp_tsk_mgmt *srp_tsk = &vio_iu(iue)->srp.tsk_mgmt;
+	u64 tag_to_abort = be64_to_cpu(srp_tsk->task_tag);
 	uint len;
 
 	pr_debug("queue_tm_rsp %p, status %d\n",
 		 se_cmd, (int)se_cmd->se_tmr_req->response);
 
+	if (srp_tsk->tsk_mgmt_func == SRP_TSK_ABORT_TASK &&
+	    cmd->se_cmd.se_tmr_req->response == TMR_TASK_DOES_NOT_EXIST) {
+		spin_lock_bh(&vscsi->intr_lock);
+		list_for_each_entry(cmd_itr, &vscsi->active_q, list) {
+			if (tag_to_abort == cmd_itr->se_cmd.tag) {
+				cmd_itr->abort_cmd = cmd;
+				cmd->flags |= DELAY_SEND;
+				break;
+			}
+		}
+		spin_unlock_bh(&vscsi->intr_lock);
+	}
+
 	srp_build_response(vscsi, cmd, &len);
 	cmd->rsp.format = SRP_FORMAT;
 	cmd->rsp.len = len;
@@ -3788,8 +3754,8 @@ static void ibmvscsis_queue_tm_rsp(struc
 
 static void ibmvscsis_aborted_task(struct se_cmd *se_cmd)
 {
-	/* TBD: What (if anything) should we do here? */
-	pr_debug("ibmvscsis_aborted_task %p\n", se_cmd);
+	pr_debug("ibmvscsis_aborted_task %p task_tag: %llu\n",
+		 se_cmd, se_cmd->tag);
 }
 
 static struct se_wwn *ibmvscsis_make_tport(struct target_fabric_configfs *tf,
@@ -3903,18 +3869,22 @@ static ssize_t ibmvscsis_tpg_enable_stor
 	}
 
 	if (tmp) {
-		tport->enabled = true;
 		spin_lock_bh(&vscsi->intr_lock);
+		tport->enabled = true;
 		lrc = ibmvscsis_enable_change_state(vscsi);
 		if (lrc)
 			pr_err("enable_change_state failed, rc %ld state %d\n",
 			       lrc, vscsi->state);
 		spin_unlock_bh(&vscsi->intr_lock);
 	} else {
+		spin_lock_bh(&vscsi->intr_lock);
 		tport->enabled = false;
+		/* This simulates the server going down */
+		ibmvscsis_post_disconnect(vscsi, ERR_DISCONNECT, 0);
+		spin_unlock_bh(&vscsi->intr_lock);
 	}
 
-	pr_debug("tpg_enable_store, state %d\n", vscsi->state);
+	pr_debug("tpg_enable_store, tmp %ld, state %d\n", tmp, vscsi->state);
 
 	return count;
 }
@@ -3928,6 +3898,7 @@ static struct configfs_attribute *ibmvsc
 static const struct target_core_fabric_ops ibmvscsis_ops = {
 	.module				= THIS_MODULE,
 	.name				= "ibmvscsis",
+	.max_data_sg_nents		= MAX_TXU / PAGE_SIZE,
 	.get_fabric_name		= ibmvscsis_get_fabric_name,
 	.tpg_get_wwn			= ibmvscsis_get_fabric_wwn,
 	.tpg_get_tag			= ibmvscsis_get_tag,
@@ -3983,10 +3954,10 @@ static struct attribute *ibmvscsis_dev_a
 ATTRIBUTE_GROUPS(ibmvscsis_dev);
 
 static struct class ibmvscsis_class = {
-	.name           = "ibmvscsis",
-	.dev_release    = ibmvscsis_dev_release,
-	.class_attrs    = ibmvscsis_class_attrs,
-	.dev_groups     = ibmvscsis_dev_groups,
+	.name		= "ibmvscsis",
+	.dev_release	= ibmvscsis_dev_release,
+	.class_attrs	= ibmvscsis_class_attrs,
+	.dev_groups	= ibmvscsis_dev_groups,
 };
 
 static struct vio_device_id ibmvscsis_device_table[] = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h linux-libre-4.9.52-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h
--- linux-libre-4.9-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.h	2017-09-27 08:40:05.000000000 -0400
@@ -167,10 +167,12 @@ struct ibmvscsis_cmd {
 	struct iu_rsp rsp;
 	struct work_struct work;
 	struct scsi_info *adapter;
+	struct ibmvscsis_cmd *abort_cmd;
 	/* Sense buffer that will be mapped into outgoing status */
 	unsigned char sense_buf[TRANSPORT_SENSE_BUFFER];
 	u64 init_time;
 #define CMD_FAST_FAIL	BIT(0)
+#define DELAY_SEND	BIT(1)
 	u32 flags;
 	char type;
 };
@@ -204,8 +206,6 @@ struct scsi_info {
 	struct list_head waiting_rsp;
 #define NO_QUEUE                    0x00
 #define WAIT_ENABLED                0X01
-	/* driver has received an initialize command */
-#define PART_UP_WAIT_ENAB           0x02
 #define WAIT_CONNECTION             0x04
 	/* have established a connection */
 #define CONNECTED                   0x08
@@ -259,6 +259,8 @@ struct scsi_info {
 #define SCHEDULE_DISCONNECT           0x00400
 	/* disconnect handler is scheduled */
 #define DISCONNECT_SCHEDULED          0x00800
+	/* remove function is sleeping */
+#define CFG_SLEEPING                  0x01000
 	u32 flags;
 	/* adapter lock */
 	spinlock_t intr_lock;
@@ -287,6 +289,7 @@ struct scsi_info {
 
 	struct workqueue_struct *work_q;
 	struct completion wait_idle;
+	struct completion unconfig;
 	struct device dev;
 	struct vio_dev *dma_dev;
 	struct srp_target target;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/isci/remote_node_context.c linux-libre-4.9.52-gnu/drivers/scsi/isci/remote_node_context.c
--- linux-libre-4.9-gnu/drivers/scsi/isci/remote_node_context.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/isci/remote_node_context.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,6 +66,9 @@ const char *rnc_state_name(enum scis_sds
 {
 	static const char * const strings[] = RNC_STATES;
 
+	if (state >= ARRAY_SIZE(strings))
+		return "UNKNOWN";
+
 	return strings[state];
 }
 #undef C
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/Kconfig linux-libre-4.9.52-gnu/drivers/scsi/Kconfig
--- linux-libre-4.9-gnu/drivers/scsi/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -1497,7 +1497,7 @@ config ATARI_SCSI
 
 config MAC_SCSI
 	tristate "Macintosh NCR5380 SCSI"
-	depends on MAC && SCSI=y
+	depends on MAC && SCSI
 	select SCSI_SPI_ATTRS
 	help
 	  This is the NCR 5380 SCSI controller included on most of the 68030
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/libiscsi.c linux-libre-4.9.52-gnu/drivers/scsi/libiscsi.c
--- linux-libre-4.9-gnu/drivers/scsi/libiscsi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/libiscsi.c	2017-09-27 08:40:05.000000000 -0400
@@ -560,8 +560,12 @@ static void iscsi_complete_task(struct i
 	WARN_ON_ONCE(task->state == ISCSI_TASK_FREE);
 	task->state = state;
 
-	if (!list_empty(&task->running))
+	spin_lock_bh(&conn->taskqueuelock);
+	if (!list_empty(&task->running)) {
+		pr_debug_once("%s while task on list", __func__);
 		list_del_init(&task->running);
+	}
+	spin_unlock_bh(&conn->taskqueuelock);
 
 	if (conn->task == task)
 		conn->task = NULL;
@@ -783,7 +787,9 @@ __iscsi_conn_send_pdu(struct iscsi_conn
 		if (session->tt->xmit_task(task))
 			goto free_task;
 	} else {
+		spin_lock_bh(&conn->taskqueuelock);
 		list_add_tail(&task->running, &conn->mgmtqueue);
+		spin_unlock_bh(&conn->taskqueuelock);
 		iscsi_conn_queue_work(conn);
 	}
 
@@ -1474,8 +1480,10 @@ void iscsi_requeue_task(struct iscsi_tas
 	 * this may be on the requeue list already if the xmit_task callout
 	 * is handling the r2ts while we are adding new ones
 	 */
+	spin_lock_bh(&conn->taskqueuelock);
 	if (list_empty(&task->running))
 		list_add_tail(&task->running, &conn->requeue);
+	spin_unlock_bh(&conn->taskqueuelock);
 	iscsi_conn_queue_work(conn);
 }
 EXPORT_SYMBOL_GPL(iscsi_requeue_task);
@@ -1512,22 +1520,26 @@ static int iscsi_data_xmit(struct iscsi_
 	 * only have one nop-out as a ping from us and targets should not
 	 * overflow us with nop-ins
 	 */
+	spin_lock_bh(&conn->taskqueuelock);
 check_mgmt:
 	while (!list_empty(&conn->mgmtqueue)) {
 		conn->task = list_entry(conn->mgmtqueue.next,
 					 struct iscsi_task, running);
 		list_del_init(&conn->task->running);
+		spin_unlock_bh(&conn->taskqueuelock);
 		if (iscsi_prep_mgmt_task(conn, conn->task)) {
 			/* regular RX path uses back_lock */
 			spin_lock_bh(&conn->session->back_lock);
 			__iscsi_put_task(conn->task);
 			spin_unlock_bh(&conn->session->back_lock);
 			conn->task = NULL;
+			spin_lock_bh(&conn->taskqueuelock);
 			continue;
 		}
 		rc = iscsi_xmit_task(conn);
 		if (rc)
 			goto done;
+		spin_lock_bh(&conn->taskqueuelock);
 	}
 
 	/* process pending command queue */
@@ -1535,19 +1547,24 @@ check_mgmt:
 		conn->task = list_entry(conn->cmdqueue.next, struct iscsi_task,
 					running);
 		list_del_init(&conn->task->running);
+		spin_unlock_bh(&conn->taskqueuelock);
 		if (conn->session->state == ISCSI_STATE_LOGGING_OUT) {
 			fail_scsi_task(conn->task, DID_IMM_RETRY);
+			spin_lock_bh(&conn->taskqueuelock);
 			continue;
 		}
 		rc = iscsi_prep_scsi_cmd_pdu(conn->task);
 		if (rc) {
 			if (rc == -ENOMEM || rc == -EACCES) {
+				spin_lock_bh(&conn->taskqueuelock);
 				list_add_tail(&conn->task->running,
 					      &conn->cmdqueue);
 				conn->task = NULL;
+				spin_unlock_bh(&conn->taskqueuelock);
 				goto done;
 			} else
 				fail_scsi_task(conn->task, DID_ABORT);
+			spin_lock_bh(&conn->taskqueuelock);
 			continue;
 		}
 		rc = iscsi_xmit_task(conn);
@@ -1558,6 +1575,7 @@ check_mgmt:
 		 * we need to check the mgmt queue for nops that need to
 		 * be sent to aviod starvation
 		 */
+		spin_lock_bh(&conn->taskqueuelock);
 		if (!list_empty(&conn->mgmtqueue))
 			goto check_mgmt;
 	}
@@ -1577,12 +1595,15 @@ check_mgmt:
 		conn->task = task;
 		list_del_init(&conn->task->running);
 		conn->task->state = ISCSI_TASK_RUNNING;
+		spin_unlock_bh(&conn->taskqueuelock);
 		rc = iscsi_xmit_task(conn);
 		if (rc)
 			goto done;
+		spin_lock_bh(&conn->taskqueuelock);
 		if (!list_empty(&conn->mgmtqueue))
 			goto check_mgmt;
 	}
+	spin_unlock_bh(&conn->taskqueuelock);
 	spin_unlock_bh(&conn->session->frwd_lock);
 	return -ENODATA;
 
@@ -1738,7 +1759,9 @@ int iscsi_queuecommand(struct Scsi_Host
 			goto prepd_reject;
 		}
 	} else {
+		spin_lock_bh(&conn->taskqueuelock);
 		list_add_tail(&task->running, &conn->cmdqueue);
+		spin_unlock_bh(&conn->taskqueuelock);
 		iscsi_conn_queue_work(conn);
 	}
 
@@ -2897,6 +2920,7 @@ iscsi_conn_setup(struct iscsi_cls_sessio
 	INIT_LIST_HEAD(&conn->mgmtqueue);
 	INIT_LIST_HEAD(&conn->cmdqueue);
 	INIT_LIST_HEAD(&conn->requeue);
+	spin_lock_init(&conn->taskqueuelock);
 	INIT_WORK(&conn->xmitwork, iscsi_xmitworker);
 
 	/* allocate login_task used for the login/text sequences */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/libsas/sas_ata.c linux-libre-4.9.52-gnu/drivers/scsi/libsas/sas_ata.c
--- linux-libre-4.9-gnu/drivers/scsi/libsas/sas_ata.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/libsas/sas_ata.c	2017-09-27 08:40:05.000000000 -0400
@@ -221,7 +221,7 @@ static unsigned int sas_ata_qc_issue(str
 		task->num_scatter = qc->n_elem;
 	} else {
 		for_each_sg(qc->sg, sg, qc->n_elem, si)
-			xfer += sg->length;
+			xfer += sg_dma_len(sg);
 
 		task->total_xfer_len = xfer;
 		task->num_scatter = si;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_els.c linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_els.c
--- linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_els.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_els.c	2017-09-27 08:40:05.000000000 -0400
@@ -3590,12 +3590,14 @@ lpfc_els_free_iocb(struct lpfc_hba *phba
 		} else {
 			buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
 			lpfc_els_free_data(phba, buf_ptr1);
+			elsiocb->context2 = NULL;
 		}
 	}
 
 	if (elsiocb->context3) {
 		buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
 		lpfc_els_free_bpl(phba, buf_ptr);
+		elsiocb->context3 = NULL;
 	}
 	lpfc_sli_release_iocbq(phba, elsiocb);
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_hw4.h linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_hw4.h
--- linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_hw4.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_hw4.h	2017-09-27 08:40:05.000000000 -0400
@@ -1185,6 +1185,7 @@ struct lpfc_mbx_wq_create {
 #define lpfc_mbx_wq_create_page_size_SHIFT	0
 #define lpfc_mbx_wq_create_page_size_MASK	0x000000FF
 #define lpfc_mbx_wq_create_page_size_WORD	word1
+#define LPFC_WQ_PAGE_SIZE_4096	0x1
 #define lpfc_mbx_wq_create_wqe_size_SHIFT	8
 #define lpfc_mbx_wq_create_wqe_size_MASK	0x0000000F
 #define lpfc_mbx_wq_create_wqe_size_WORD	word1
@@ -1256,6 +1257,7 @@ struct rq_context {
 #define lpfc_rq_context_page_size_SHIFT	0		/* Version 1 Only */
 #define lpfc_rq_context_page_size_MASK	0x000000FF
 #define lpfc_rq_context_page_size_WORD	word0
+#define	LPFC_RQ_PAGE_SIZE_4096	0x1
 	uint32_t reserved1;
 	uint32_t word2;
 #define lpfc_rq_context_cq_id_SHIFT	16
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_init.c linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_init.c
--- linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_init.c	2016-12-11 17:59:22.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_init.c	2017-09-27 15:14:00.000000000 -0400
@@ -11393,6 +11393,7 @@ static struct pci_driver lpfc_driver = {
 	.id_table	= lpfc_id_table,
 	.probe		= lpfc_pci_probe_one,
 	.remove		= lpfc_pci_remove_one,
+	.shutdown	= lpfc_pci_remove_one,
 	.suspend        = lpfc_pci_suspend_one,
 	.resume		= lpfc_pci_resume_one,
 	.err_handler    = &lpfc_err_handler,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_sli.c linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_sli.c
--- linux-libre-4.9-gnu/drivers/scsi/lpfc/lpfc_sli.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/lpfc/lpfc_sli.c	2017-09-27 08:40:05.000000000 -0400
@@ -5951,18 +5951,25 @@ lpfc_sli4_alloc_resource_identifiers(str
 
  free_vfi_bmask:
 	kfree(phba->sli4_hba.vfi_bmask);
+	phba->sli4_hba.vfi_bmask = NULL;
  free_xri_ids:
 	kfree(phba->sli4_hba.xri_ids);
+	phba->sli4_hba.xri_ids = NULL;
  free_xri_bmask:
 	kfree(phba->sli4_hba.xri_bmask);
+	phba->sli4_hba.xri_bmask = NULL;
  free_vpi_ids:
 	kfree(phba->vpi_ids);
+	phba->vpi_ids = NULL;
  free_vpi_bmask:
 	kfree(phba->vpi_bmask);
+	phba->vpi_bmask = NULL;
  free_rpi_ids:
 	kfree(phba->sli4_hba.rpi_ids);
+	phba->sli4_hba.rpi_ids = NULL;
  free_rpi_bmask:
 	kfree(phba->sli4_hba.rpi_bmask);
+	phba->sli4_hba.rpi_bmask = NULL;
  err_exit:
 	return rc;
 }
@@ -13678,7 +13685,7 @@ lpfc_wq_create(struct lpfc_hba *phba, st
 			       LPFC_WQ_WQE_SIZE_128);
 			bf_set(lpfc_mbx_wq_create_page_size,
 			       &wq_create->u.request_1,
-			       (PAGE_SIZE/SLI4_PAGE_SIZE));
+			       LPFC_WQ_PAGE_SIZE_4096);
 			page = wq_create->u.request_1.page;
 			break;
 		}
@@ -13704,8 +13711,9 @@ lpfc_wq_create(struct lpfc_hba *phba, st
 			       LPFC_WQ_WQE_SIZE_128);
 			break;
 		}
-		bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
-		       (PAGE_SIZE/SLI4_PAGE_SIZE));
+		bf_set(lpfc_mbx_wq_create_page_size,
+		       &wq_create->u.request_1,
+		       LPFC_WQ_PAGE_SIZE_4096);
 		page = wq_create->u.request_1.page;
 		break;
 	default:
@@ -13891,7 +13899,7 @@ lpfc_rq_create(struct lpfc_hba *phba, st
 		       LPFC_RQE_SIZE_8);
 		bf_set(lpfc_rq_context_page_size,
 		       &rq_create->u.request.context,
-		       (PAGE_SIZE/SLI4_PAGE_SIZE));
+		       LPFC_RQ_PAGE_SIZE_4096);
 	} else {
 		switch (hrq->entry_count) {
 		default:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/megaraid/megaraid_sas_base.c linux-libre-4.9.52-gnu/drivers/scsi/megaraid/megaraid_sas_base.c
--- linux-libre-4.9-gnu/drivers/scsi/megaraid/megaraid_sas_base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/megaraid/megaraid_sas_base.c	2017-09-27 08:40:05.000000000 -0400
@@ -1901,9 +1901,12 @@ static void megasas_complete_outstanding
 			if (cmd_fusion->sync_cmd_idx != (u32)ULONG_MAX) {
 				cmd_mfi = instance->cmd_list[cmd_fusion->sync_cmd_idx];
 				if (cmd_mfi->sync_cmd &&
-					cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)
+				    (cmd_mfi->frame->hdr.cmd != MFI_CMD_ABORT)) {
+					cmd_mfi->frame->hdr.cmd_status =
+							MFI_STAT_WRONG_STATE;
 					megasas_complete_cmd(instance,
 							     cmd_mfi, DID_OK);
+				}
 			}
 		}
 	} else {
@@ -5290,7 +5293,8 @@ static int megasas_init_fw(struct megasa
 		instance->throttlequeuedepth =
 				MEGASAS_THROTTLE_QUEUE_DEPTH;
 
-	if (resetwaittime > MEGASAS_RESET_WAIT_TIME)
+	if ((resetwaittime < 1) ||
+	    (resetwaittime > MEGASAS_RESET_WAIT_TIME))
 		resetwaittime = MEGASAS_RESET_WAIT_TIME;
 
 	if ((scmd_timeout < 10) || (scmd_timeout > MEGASAS_DEFAULT_CMD_TIMEOUT))
@@ -5459,6 +5463,14 @@ megasas_register_aen(struct megasas_inst
 		prev_aen.word =
 			le32_to_cpu(instance->aen_cmd->frame->dcmd.mbox.w[1]);
 
+		if ((curr_aen.members.class < MFI_EVT_CLASS_DEBUG) ||
+		    (curr_aen.members.class > MFI_EVT_CLASS_DEAD)) {
+			dev_info(&instance->pdev->dev,
+				 "%s %d out of range class %d send by application\n",
+				 __func__, __LINE__, curr_aen.members.class);
+			return 0;
+		}
+
 		/*
 		 * A class whose enum value is smaller is inclusive of all
 		 * higher values. If a PROGRESS (= -1) was previously
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c linux-libre-4.9.52-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c
--- linux-libre-4.9-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/megaraid/megaraid_sas_fusion.c	2017-09-27 08:40:05.000000000 -0400
@@ -2000,6 +2000,8 @@ megasas_build_syspd_fusion(struct megasa
 		io_request->DevHandle = pd_sync->seq[pd_index].devHandle;
 		pRAID_Context->regLockFlags |=
 			(MR_RL_FLAGS_SEQ_NUM_ENABLE|MR_RL_FLAGS_GRANT_DESTINATION_CUDA);
+		pRAID_Context->Type = MPI2_TYPE_CUDA;
+		pRAID_Context->nseg = 0x1;
 	} else if (fusion->fast_path_io) {
 		pRAID_Context->VirtualDiskTgtId = cpu_to_le16(device_id);
 		pRAID_Context->configSeqNum = 0;
@@ -2035,12 +2037,10 @@ megasas_build_syspd_fusion(struct megasa
 		pRAID_Context->timeoutValue =
 			cpu_to_le16((os_timeout_value > timeout_limit) ?
 			timeout_limit : os_timeout_value);
-		if (fusion->adapter_type == INVADER_SERIES) {
-			pRAID_Context->Type = MPI2_TYPE_CUDA;
-			pRAID_Context->nseg = 0x1;
+		if (fusion->adapter_type == INVADER_SERIES)
 			io_request->IoFlags |=
 				cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
-		}
+
 		cmd->request_desc->SCSIIO.RequestFlags =
 			(MPI2_REQ_DESCRIPT_FLAGS_FP_IO <<
 				MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
@@ -2823,6 +2823,7 @@ int megasas_wait_for_outstanding_fusion(
 		dev_err(&instance->pdev->dev, "pending commands remain after waiting, "
 		       "will reset adapter scsi%d.\n",
 		       instance->host->host_no);
+		*convert = 1;
 		retval = 1;
 	}
 out:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h linux-libre-4.9.52-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h
--- linux-libre-4.9-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/mpt3sas/mpt3sas_base.h	2017-09-27 08:40:05.000000000 -0400
@@ -393,6 +393,7 @@ struct MPT3SAS_TARGET {
  * @eedp_enable: eedp support enable bit
  * @eedp_type: 0(type_1), 1(type_2), 2(type_3)
  * @eedp_block_length: block size
+ * @ata_command_pending: SATL passthrough outstanding for device
  */
 struct MPT3SAS_DEVICE {
 	struct MPT3SAS_TARGET *sas_target;
@@ -402,6 +403,17 @@ struct MPT3SAS_DEVICE {
 	u8	block;
 	u8	tlr_snoop_check;
 	u8	ignore_delay_remove;
+	/*
+	 * Bug workaround for SATL handling: the mpt2/3sas firmware
+	 * doesn't return BUSY or TASK_SET_FULL for subsequent
+	 * commands while a SATL pass through is in operation as the
+	 * spec requires, it simply does nothing with them until the
+	 * pass through completes, causing them possibly to timeout if
+	 * the passthrough is a long executing command (like format or
+	 * secure erase).  This variable allows us to do the right
+	 * thing while a SATL command is pending.
+	 */
+	unsigned long ata_command_pending;
 };
 
 #define MPT3_CMD_NOT_USED	0x8000	/* free */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c linux-libre-4.9.52-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c
--- linux-libre-4.9-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/mpt3sas/mpt3sas_scsih.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,6 +51,7 @@
 #include <linux/workqueue.h>
 #include <linux/delay.h>
 #include <linux/pci.h>
+#include <linux/pci-aspm.h>
 #include <linux/interrupt.h>
 #include <linux/aer.h>
 #include <linux/raid_class.h>
@@ -3885,9 +3886,18 @@ _scsih_temp_threshold_events(struct MPT3
 	}
 }
 
-static inline bool ata_12_16_cmd(struct scsi_cmnd *scmd)
+static int _scsih_set_satl_pending(struct scsi_cmnd *scmd, bool pending)
 {
-	return (scmd->cmnd[0] == ATA_12 || scmd->cmnd[0] == ATA_16);
+	struct MPT3SAS_DEVICE *priv = scmd->device->hostdata;
+
+	if (scmd->cmnd[0] != ATA_12 && scmd->cmnd[0] != ATA_16)
+		return 0;
+
+	if (pending)
+		return test_and_set_bit(0, &priv->ata_command_pending);
+
+	clear_bit(0, &priv->ata_command_pending);
+	return 0;
 }
 
 /**
@@ -3911,9 +3921,7 @@ _scsih_flush_running_cmds(struct MPT3SAS
 		if (!scmd)
 			continue;
 		count++;
-		if (ata_12_16_cmd(scmd))
-			scsi_internal_device_unblock(scmd->device,
-							SDEV_RUNNING);
+		_scsih_set_satl_pending(scmd, false);
 		mpt3sas_base_free_smid(ioc, smid);
 		scsi_dma_unmap(scmd);
 		if (ioc->pci_error_recovery)
@@ -4044,13 +4052,6 @@ scsih_qcmd(struct Scsi_Host *shost, stru
 	if (ioc->logging_level & MPT_DEBUG_SCSI)
 		scsi_print_command(scmd);
 
-	/*
-	 * Lock the device for any subsequent command until command is
-	 * done.
-	 */
-	if (ata_12_16_cmd(scmd))
-		scsi_internal_device_block(scmd->device);
-
 	sas_device_priv_data = scmd->device->hostdata;
 	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
 		scmd->result = DID_NO_CONNECT << 16;
@@ -4064,6 +4065,19 @@ scsih_qcmd(struct Scsi_Host *shost, stru
 		return 0;
 	}
 
+	/*
+	 * Bug work around for firmware SATL handling.  The loop
+	 * is based on atomic operations and ensures consistency
+	 * since we're lockless at this point
+	 */
+	do {
+		if (test_bit(0, &sas_device_priv_data->ata_command_pending)) {
+			scmd->result = SAM_STAT_BUSY;
+			scmd->scsi_done(scmd);
+			return 0;
+		}
+	} while (_scsih_set_satl_pending(scmd, true));
+
 	sas_target_priv_data = sas_device_priv_data->sas_target;
 
 	/* invalid device handle */
@@ -4620,14 +4634,14 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *i
 	struct MPT3SAS_DEVICE *sas_device_priv_data;
 	u32 response_code = 0;
 	unsigned long flags;
+	unsigned int sector_sz;
 
 	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
 	scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
 	if (scmd == NULL)
 		return 1;
 
-	if (ata_12_16_cmd(scmd))
-		scsi_internal_device_unblock(scmd->device, SDEV_RUNNING);
+	_scsih_set_satl_pending(scmd, false);
 
 	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
 
@@ -4679,6 +4693,20 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *i
 	}
 
 	xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
+
+	/* In case of bogus fw or device, we could end up having
+	 * unaligned partial completion. We can force alignment here,
+	 * then scsi-ml does not need to handle this misbehavior.
+	 */
+	sector_sz = scmd->device->sector_size;
+	if (unlikely(scmd->request->cmd_type == REQ_TYPE_FS && sector_sz &&
+		     xfer_cnt % sector_sz)) {
+		sdev_printk(KERN_INFO, scmd->device,
+		    "unaligned partial completion avoided (xfer_cnt=%u, sector_sz=%u)\n",
+			    xfer_cnt, sector_sz);
+		xfer_cnt = round_down(xfer_cnt, sector_sz);
+	}
+
 	scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
 	if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
 		log_info =  le32_to_cpu(mpi_reply->IOCLogInfo);
@@ -8694,6 +8722,8 @@ _scsih_probe(struct pci_dev *pdev, const
 
 	switch (hba_mpi_version) {
 	case MPI2_VERSION:
+		pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
+			PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
 		/* Use mpt2sas driver host template for SAS 2.0 HBA's */
 		shost = scsi_host_alloc(&mpt2sas_driver_template,
 		  sizeof(struct MPT3SAS_ADAPTER));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/mvsas/mv_94xx.c linux-libre-4.9.52-gnu/drivers/scsi/mvsas/mv_94xx.c
--- linux-libre-4.9-gnu/drivers/scsi/mvsas/mv_94xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/mvsas/mv_94xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -668,7 +668,7 @@ static void mvs_94xx_command_active(stru
 {
 	u32 tmp;
 	tmp = mvs_cr32(mvi, MVS_COMMAND_ACTIVE+(slot_idx >> 3));
-	if (tmp && 1 << (slot_idx % 32)) {
+	if (tmp & 1 << (slot_idx % 32)) {
 		mv_printk("command active %08X,  slot [%x].\n", tmp, slot_idx);
 		mvs_cw32(mvi, MVS_COMMAND_ACTIVE + (slot_idx >> 3),
 			1 << (slot_idx % 32));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_attr.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_attr.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_attr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_attr.c	2017-09-27 08:40:05.000000000 -0400
@@ -243,12 +243,15 @@ qla2x00_sysfs_read_optrom(struct file *f
 	struct qla_hw_data *ha = vha->hw;
 	ssize_t rval = 0;
 
+	mutex_lock(&ha->optrom_mutex);
+
 	if (ha->optrom_state != QLA_SREADING)
-		return 0;
+		goto out;
 
-	mutex_lock(&ha->optrom_mutex);
 	rval = memory_read_from_buffer(buf, count, &off, ha->optrom_buffer,
 	    ha->optrom_region_size);
+
+out:
 	mutex_unlock(&ha->optrom_mutex);
 
 	return rval;
@@ -263,14 +266,19 @@ qla2x00_sysfs_write_optrom(struct file *
 	    struct device, kobj)));
 	struct qla_hw_data *ha = vha->hw;
 
-	if (ha->optrom_state != QLA_SWRITING)
+	mutex_lock(&ha->optrom_mutex);
+
+	if (ha->optrom_state != QLA_SWRITING) {
+		mutex_unlock(&ha->optrom_mutex);
 		return -EINVAL;
-	if (off > ha->optrom_region_size)
+	}
+	if (off > ha->optrom_region_size) {
+		mutex_unlock(&ha->optrom_mutex);
 		return -ERANGE;
+	}
 	if (off + count > ha->optrom_region_size)
 		count = ha->optrom_region_size - off;
 
-	mutex_lock(&ha->optrom_mutex);
 	memcpy(&ha->optrom_buffer[off], buf, count);
 	mutex_unlock(&ha->optrom_mutex);
 
@@ -310,6 +318,8 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		return -EINVAL;
 	if (start > ha->optrom_size)
 		return -EINVAL;
+	if (size > ha->optrom_size - start)
+		size = ha->optrom_size - start;
 
 	mutex_lock(&ha->optrom_mutex);
 	switch (val) {
@@ -335,8 +345,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		}
 
 		ha->optrom_region_start = start;
-		ha->optrom_region_size = start + size > ha->optrom_size ?
-		    ha->optrom_size - start : size;
+		ha->optrom_region_size = start + size;
 
 		ha->optrom_state = QLA_SREADING;
 		ha->optrom_buffer = vmalloc(ha->optrom_region_size);
@@ -409,8 +418,7 @@ qla2x00_sysfs_write_optrom_ctl(struct fi
 		}
 
 		ha->optrom_region_start = start;
-		ha->optrom_region_size = start + size > ha->optrom_size ?
-		    ha->optrom_size - start : size;
+		ha->optrom_region_size = start + size;
 
 		ha->optrom_state = QLA_SWRITING;
 		ha->optrom_buffer = vmalloc(ha->optrom_region_size);
@@ -2153,8 +2161,6 @@ qla24xx_vport_delete(struct fc_vport *fc
 		    "Timer for the VP[%d] has stopped\n", vha->vp_idx);
 	}
 
-	BUG_ON(atomic_read(&vha->vref_count));
-
 	qla2x00_free_fcports(vha);
 
 	mutex_lock(&ha->vport_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_bsg.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_bsg.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_bsg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_bsg.c	2017-09-27 08:40:05.000000000 -0400
@@ -721,6 +721,8 @@ qla2x00_process_loopback(struct fc_bsg_j
 		return -EIO;
 	}
 
+	memset(&elreq, 0, sizeof(elreq));
+
 	elreq.req_sg_cnt = dma_map_sg(&ha->pdev->dev,
 		bsg_job->request_payload.sg_list, bsg_job->request_payload.sg_cnt,
 		DMA_TO_DEVICE);
@@ -786,10 +788,9 @@ qla2x00_process_loopback(struct fc_bsg_j
 
 	if (atomic_read(&vha->loop_state) == LOOP_READY &&
 	    (ha->current_topology == ISP_CFG_F ||
-	    ((IS_QLA81XX(ha) || IS_QLA8031(ha) || IS_QLA8044(ha)) &&
-	    le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE
-	    && req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
-		elreq.options == EXTERNAL_LOOPBACK) {
+	    (le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE &&
+	     req_data_len == MAX_ELS_FRAME_PAYLOAD)) &&
+	    elreq.options == EXTERNAL_LOOPBACK) {
 		type = "FC_BSG_HST_VENDOR_ECHO_DIAG";
 		ql_dbg(ql_dbg_user, vha, 0x701e,
 		    "BSG request type: %s.\n", type);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_dbg.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_dbg.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_dbg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_dbg.c	2017-09-27 08:40:05.000000000 -0400
@@ -1131,7 +1131,7 @@ qla24xx_fw_dump(scsi_qla_host_t *vha, in
 
 	/* Mailbox registers. */
 	mbx_reg = &reg->mailbox0;
-	for (cnt = 0; cnt < sizeof(fw->mailbox_reg) / 2; cnt++, dmp_reg++)
+	for (cnt = 0; cnt < sizeof(fw->mailbox_reg) / 2; cnt++, mbx_reg++)
 		fw->mailbox_reg[cnt] = htons(RD_REG_WORD(mbx_reg));
 
 	/* Transfer sequence registers. */
@@ -2090,7 +2090,7 @@ qla83xx_fw_dump(scsi_qla_host_t *vha, in
 
 	/* Mailbox registers. */
 	mbx_reg = &reg->mailbox0;
-	for (cnt = 0; cnt < sizeof(fw->mailbox_reg) / 2; cnt++, dmp_reg++)
+	for (cnt = 0; cnt < sizeof(fw->mailbox_reg) / 2; cnt++, mbx_reg++)
 		fw->mailbox_reg[cnt] = htons(RD_REG_WORD(mbx_reg));
 
 	/* Transfer sequence registers. */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_def.h linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_def.h
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_def.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_def.h	2017-09-27 08:40:05.000000000 -0400
@@ -1555,7 +1555,8 @@ typedef struct {
 struct atio {
 	uint8_t		entry_type;		/* Entry type. */
 	uint8_t		entry_count;		/* Entry count. */
-	uint8_t		data[58];
+	__le16		attr_n_length;
+	uint8_t		data[56];
 	uint32_t	signature;
 #define ATIO_PROCESSED 0xDEADDEAD		/* Signature */
 };
@@ -3742,6 +3743,7 @@ typedef struct scsi_qla_host {
 	struct qla8044_reset_template reset_tmplt;
 	struct qla_tgt_counters tgt_counters;
 	uint16_t	bbcr;
+	wait_queue_head_t vref_waitq;
 } scsi_qla_host_t;
 
 struct qla27xx_image_status {
@@ -3780,6 +3782,7 @@ struct qla_tgt_vp_map {
 	mb();						     \
 	if (__vha->flags.delete_progress) {		     \
 		atomic_dec(&__vha->vref_count);		     \
+		wake_up(&__vha->vref_waitq);		\
 		__bail = 1;				     \
 	} else {					     \
 		__bail = 0;				     \
@@ -3788,6 +3791,7 @@ struct qla_tgt_vp_map {
 
 #define QLA_VHA_MARK_NOT_BUSY(__vha) do {		     \
 	atomic_dec(&__vha->vref_count);			     \
+	wake_up(&__vha->vref_waitq);			\
 } while (0)
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_init.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_init.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_init.c	2017-09-27 08:40:05.000000000 -0400
@@ -4356,6 +4356,7 @@ qla2x00_update_fcports(scsi_qla_host_t *
 			}
 		}
 		atomic_dec(&vha->vref_count);
+		wake_up(&vha->vref_waitq);
 	}
 	spin_unlock_irqrestore(&ha->vport_slock, flags);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_isr.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_isr.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_isr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_isr.c	2017-09-27 08:40:05.000000000 -0400
@@ -2487,6 +2487,10 @@ qla2x00_error_entry(scsi_qla_host_t *vha
 	if (pkt->entry_status & RF_BUSY)
 		res = DID_BUS_BUSY << 16;
 
+	if (pkt->entry_type == NOTIFY_ACK_TYPE &&
+	    pkt->handle == QLA_TGT_SKIP_HANDLE)
+		return;
+
 	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
 	if (sp) {
 		sp->done(ha, sp, res);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_mbx.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_mbx.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_mbx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_mbx.c	2017-09-27 08:40:05.000000000 -0400
@@ -4783,9 +4783,9 @@ qla2x00_echo_test(scsi_qla_host_t *vha,
 
 	memset(mcp->mb, 0 , sizeof(mcp->mb));
 	mcp->mb[0] = MBC_DIAGNOSTIC_ECHO;
-	mcp->mb[1] = mreq->options | BIT_6;	/* BIT_6 specifies 64bit address */
+	/* BIT_6 specifies 64bit address */
+	mcp->mb[1] = mreq->options | BIT_15 | BIT_6;
 	if (IS_CNA_CAPABLE(ha)) {
-		mcp->mb[1] |= BIT_15;
 		mcp->mb[2] = vha->fcoe_fcf_idx;
 	}
 	mcp->mb[16] = LSW(mreq->rcv_dma);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_mid.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_mid.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_mid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_mid.c	2017-09-27 08:40:05.000000000 -0400
@@ -74,13 +74,14 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t
 	 * ensures no active vp_list traversal while the vport is removed
 	 * from the queue)
 	 */
-	spin_lock_irqsave(&ha->vport_slock, flags);
-	while (atomic_read(&vha->vref_count)) {
-		spin_unlock_irqrestore(&ha->vport_slock, flags);
-
-		msleep(500);
+	wait_event_timeout(vha->vref_waitq, !atomic_read(&vha->vref_count),
+	    10*HZ);
 
-		spin_lock_irqsave(&ha->vport_slock, flags);
+	spin_lock_irqsave(&ha->vport_slock, flags);
+	if (atomic_read(&vha->vref_count)) {
+		ql_dbg(ql_dbg_vport, vha, 0xfffa,
+		    "vha->vref_count=%u timeout\n", vha->vref_count.counter);
+		vha->vref_count = (atomic_t)ATOMIC_INIT(0);
 	}
 	list_del(&vha->list);
 	qlt_update_vp_map(vha, RESET_VP_IDX);
@@ -269,6 +270,7 @@ qla2x00_alert_all_vps(struct rsp_que *rs
 
 			spin_lock_irqsave(&ha->vport_slock, flags);
 			atomic_dec(&vha->vref_count);
+			wake_up(&vha->vref_waitq);
 		}
 		i++;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_os.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_os.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_os.c	2016-12-11 17:59:27.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_os.c	2017-09-27 15:14:07.000000000 -0400
@@ -968,8 +968,13 @@ static inline
 uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
 {
 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+	struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 
-	return ((RD_REG_DWORD(&reg->host_status)) == ISP_REG_DISCONNECT);
+	if (IS_P3P_TYPE(ha))
+		return ((RD_REG_DWORD(&reg82->host_int)) == ISP_REG_DISCONNECT);
+	else
+		return ((RD_REG_DWORD(&reg->host_status)) ==
+			ISP_REG_DISCONNECT);
 }
 
 /**************************************************************************
@@ -1459,7 +1464,8 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *
 				/* Don't abort commands in adapter during EEH
 				 * recovery as it's not accessible/responding.
 				 */
-				if (!ha->flags.eeh_busy) {
+				if (GET_CMD_SP(sp) && !ha->flags.eeh_busy &&
+				    (sp->type == SRB_SCSI_CMD)) {
 					/* Get a reference to the sp and drop the lock.
 					 * The reference ensures this sp->done() call
 					 * - and not the call in qla2xxx_eh_abort() -
@@ -2414,10 +2420,10 @@ qla2x00_probe_one(struct pci_dev *pdev,
 
 	if (mem_only) {
 		if (pci_enable_device_mem(pdev))
-			goto probe_out;
+			return ret;
 	} else {
 		if (pci_enable_device(pdev))
-			goto probe_out;
+			return ret;
 	}
 
 	/* This may fail but that's ok */
@@ -2427,7 +2433,7 @@ qla2x00_probe_one(struct pci_dev *pdev,
 	if (!ha) {
 		ql_log_pci(ql_log_fatal, pdev, 0x0009,
 		    "Unable to allocate memory for ha.\n");
-		goto probe_out;
+		goto disable_device;
 	}
 	ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
 	    "Memory allocated for ha=%p.\n", ha);
@@ -3033,7 +3039,7 @@ iospace_config_failed:
 	kfree(ha);
 	ha = NULL;
 
-probe_out:
+disable_device:
 	pci_disable_device(pdev);
 	return ret;
 }
@@ -3489,7 +3495,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha
 				sizeof(struct ct6_dsd), 0,
 				SLAB_HWCACHE_ALIGN, NULL);
 			if (!ctx_cachep)
-				goto fail_free_gid_list;
+				goto fail_free_srb_mempool;
 		}
 		ha->ctx_mempool = mempool_create_slab_pool(SRB_MIN_REQ,
 			ctx_cachep);
@@ -3642,7 +3648,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha
 	ha->loop_id_map = kzalloc(BITS_TO_LONGS(LOOPID_MAP_SIZE) * sizeof(long),
 	    GFP_KERNEL);
 	if (!ha->loop_id_map)
-		goto fail_async_pd;
+		goto fail_loop_id_map;
 	else {
 		qla2x00_set_reserved_loop_ids(ha);
 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0123,
@@ -3651,6 +3657,8 @@ qla2x00_mem_alloc(struct qla_hw_data *ha
 
 	return 0;
 
+fail_loop_id_map:
+	dma_pool_free(ha->s_dma_pool, ha->async_pd, ha->async_pd_dma);
 fail_async_pd:
 	dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
 fail_ex_init_cb:
@@ -3678,6 +3686,10 @@ fail_free_ms_iocb:
 	dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
 	ha->ms_iocb = NULL;
 	ha->ms_iocb_dma = 0;
+
+	if (ha->sns_cmd)
+		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
+		    ha->sns_cmd, ha->sns_cmd_dma);
 fail_dma_pool:
 	if (IS_QLA82XX(ha) || ql2xenabledif) {
 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
@@ -3695,10 +3707,12 @@ fail_free_nvram:
 	kfree(ha->nvram);
 	ha->nvram = NULL;
 fail_free_ctx_mempool:
-	mempool_destroy(ha->ctx_mempool);
+	if (ha->ctx_mempool)
+		mempool_destroy(ha->ctx_mempool);
 	ha->ctx_mempool = NULL;
 fail_free_srb_mempool:
-	mempool_destroy(ha->srb_mempool);
+	if (ha->srb_mempool)
+		mempool_destroy(ha->srb_mempool);
 	ha->srb_mempool = NULL;
 fail_free_gid_list:
 	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
@@ -4037,6 +4051,7 @@ struct scsi_qla_host *qla2x00_create_hos
 
 	spin_lock_init(&vha->work_lock);
 	spin_lock_init(&vha->cmd_list_lock);
+	init_waitqueue_head(&vha->vref_waitq);
 
 	sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
 	ql_dbg(ql_dbg_init, vha, 0x0041,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_target.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_target.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_target.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_target.c	2017-09-27 08:40:05.000000000 -0400
@@ -3067,7 +3067,7 @@ static int __qlt_send_term_imm_notif(str
 
 	pkt->entry_type = NOTIFY_ACK_TYPE;
 	pkt->entry_count = 1;
-	pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
+	pkt->handle = QLA_TGT_SKIP_HANDLE;
 
 	nack = (struct nack_to_isp *)pkt;
 	nack->ox_id = ntfy->ox_id;
@@ -5375,16 +5375,22 @@ qlt_send_busy(struct scsi_qla_host *vha,
 
 static int
 qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha,
-	struct atio_from_isp *atio)
+	struct atio_from_isp *atio, bool ha_locked)
 {
 	struct qla_hw_data *ha = vha->hw;
 	uint16_t status;
+	unsigned long flags;
 
 	if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha))
 		return 0;
 
+	if (!ha_locked)
+		spin_lock_irqsave(&ha->hardware_lock, flags);
 	status = temp_sam_status;
 	qlt_send_busy(vha, atio, status);
+	if (!ha_locked)
+		spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
 	return 1;
 }
 
@@ -5429,7 +5435,7 @@ static void qlt_24xx_atio_pkt(struct scs
 
 
 		if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) {
-			rc = qlt_chk_qfull_thresh_hold(vha, atio);
+			rc = qlt_chk_qfull_thresh_hold(vha, atio, ha_locked);
 			if (rc != 0) {
 				tgt->atio_irq_cmd_count--;
 				return;
@@ -5552,7 +5558,7 @@ static void qlt_response_pkt(struct scsi
 			break;
 		}
 
-		rc = qlt_chk_qfull_thresh_hold(vha, atio);
+		rc = qlt_chk_qfull_thresh_hold(vha, atio, true);
 		if (rc != 0) {
 			tgt->irq_cmd_count--;
 			return;
@@ -6457,12 +6463,29 @@ qlt_24xx_process_atio_queue(struct scsi_
 	if (!vha->flags.online)
 		return;
 
-	while (ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) {
+	while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
+	    fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
 		pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
 		cnt = pkt->u.raw.entry_count;
 
-		qlt_24xx_atio_pkt_all_vps(vha, (struct atio_from_isp *)pkt,
-		    ha_locked);
+		if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
+			/*
+			 * This packet is corrupted. The header + payload
+			 * can not be trusted. There is no point in passing
+			 * it further up.
+			 */
+			ql_log(ql_log_warn, vha, 0xffff,
+			    "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
+			    pkt->u.isp24.fcp_hdr.s_id,
+			    be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
+			    le32_to_cpu(pkt->u.isp24.exchange_addr), pkt);
+
+			adjust_corrupted_atio(pkt);
+			qlt_send_term_exchange(vha, NULL, pkt, ha_locked, 0);
+		} else {
+			qlt_24xx_atio_pkt_all_vps(vha,
+			    (struct atio_from_isp *)pkt, ha_locked);
+		}
 
 		for (i = 0; i < cnt; i++) {
 			ha->tgt.atio_ring_index++;
@@ -6794,6 +6817,8 @@ qlt_handle_abts_recv_work(struct work_st
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 	qlt_response_pkt_all_vps(vha, (response_t *)&op->atio);
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	kfree(op);
 }
 
 void
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_target.h linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_target.h
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_target.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_target.h	2017-09-27 08:40:05.000000000 -0400
@@ -427,13 +427,33 @@ struct atio_from_isp {
 		struct {
 			uint8_t  entry_type;	/* Entry type. */
 			uint8_t  entry_count;	/* Entry count. */
-			uint8_t  data[58];
+			__le16	 attr_n_length;
+#define FCP_CMD_LENGTH_MASK 0x0fff
+#define FCP_CMD_LENGTH_MIN  0x38
+			uint8_t  data[56];
 			uint32_t signature;
 #define ATIO_PROCESSED 0xDEADDEAD		/* Signature */
 		} raw;
 	} u;
 } __packed;
 
+static inline int fcpcmd_is_corrupted(struct atio *atio)
+{
+	if (atio->entry_type == ATIO_TYPE7 &&
+	    (le16_to_cpu(atio->attr_n_length & FCP_CMD_LENGTH_MASK) <
+	    FCP_CMD_LENGTH_MIN))
+		return 1;
+	else
+		return 0;
+}
+
+/* adjust corrupted atio so we won't trip over the same entry again. */
+static inline void adjust_corrupted_atio(struct atio_from_isp *atio)
+{
+	atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);
+	atio->u.isp24.fcp_cmnd.add_cdb_len = 0;
+}
+
 #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_tmpl.c linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_tmpl.c
--- linux-libre-4.9-gnu/drivers/scsi/qla2xxx/qla_tmpl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/qla2xxx/qla_tmpl.c	2017-09-27 08:40:05.000000000 -0400
@@ -371,7 +371,7 @@ qla27xx_fwdt_entry_t262(struct scsi_qla_
 		goto done;
 	}
 
-	if (end <= start || start == 0 || end == 0) {
+	if (end < start || start == 0 || end == 0) {
 		ql_dbg(ql_dbg_misc, vha, 0xd023,
 		    "%s: unusable range (start=%x end=%x)\n", __func__,
 		    ent->t262.end_addr, ent->t262.start_addr);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/scsi_dh.c linux-libre-4.9.52-gnu/drivers/scsi/scsi_dh.c
--- linux-libre-4.9-gnu/drivers/scsi/scsi_dh.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/scsi_dh.c	2017-09-27 08:40:05.000000000 -0400
@@ -219,20 +219,6 @@ int scsi_unregister_device_handler(struc
 }
 EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
 
-static struct scsi_device *get_sdev_from_queue(struct request_queue *q)
-{
-	struct scsi_device *sdev;
-	unsigned long flags;
-
-	spin_lock_irqsave(q->queue_lock, flags);
-	sdev = q->queuedata;
-	if (!sdev || !get_device(&sdev->sdev_gendev))
-		sdev = NULL;
-	spin_unlock_irqrestore(q->queue_lock, flags);
-
-	return sdev;
-}
-
 /*
  * scsi_dh_activate - activate the path associated with the scsi_device
  *      corresponding to the given request queue.
@@ -251,7 +237,7 @@ int scsi_dh_activate(struct request_queu
 	struct scsi_device *sdev;
 	int err = SCSI_DH_NOSYS;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev) {
 		if (fn)
 			fn(data, err);
@@ -298,7 +284,7 @@ int scsi_dh_set_params(struct request_qu
 	struct scsi_device *sdev;
 	int err = -SCSI_DH_NOSYS;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev)
 		return err;
 
@@ -321,7 +307,7 @@ int scsi_dh_attach(struct request_queue
 	struct scsi_device_handler *scsi_dh;
 	int err = 0;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev)
 		return -ENODEV;
 
@@ -359,7 +345,7 @@ const char *scsi_dh_attached_handler_nam
 	struct scsi_device *sdev;
 	const char *handler_name = NULL;
 
-	sdev = get_sdev_from_queue(q);
+	sdev = scsi_device_from_queue(q);
 	if (!sdev)
 		return NULL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/scsi_lib.c linux-libre-4.9.52-gnu/drivers/scsi/scsi_lib.c
--- linux-libre-4.9-gnu/drivers/scsi/scsi_lib.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/scsi_lib.c	2017-09-27 08:40:05.000000000 -0400
@@ -1031,7 +1031,8 @@ int scsi_init_io(struct scsi_cmnd *cmd)
 	bool is_mq = (rq->mq_ctx != NULL);
 	int error;
 
-	BUG_ON(!rq->nr_phys_segments);
+	if (WARN_ON_ONCE(!rq->nr_phys_segments))
+		return -EINVAL;
 
 	error = scsi_init_sgtable(rq, &cmd->sdb);
 	if (error)
@@ -2126,6 +2127,29 @@ void scsi_mq_destroy_tags(struct Scsi_Ho
 	blk_mq_free_tag_set(&shost->tag_set);
 }
 
+/**
+ * scsi_device_from_queue - return sdev associated with a request_queue
+ * @q: The request queue to return the sdev from
+ *
+ * Return the sdev associated with a request queue or NULL if the
+ * request_queue does not reference a SCSI device.
+ */
+struct scsi_device *scsi_device_from_queue(struct request_queue *q)
+{
+	struct scsi_device *sdev = NULL;
+
+	if (q->mq_ops) {
+		if (q->mq_ops == &scsi_mq_ops)
+			sdev = q->queuedata;
+	} else if (q->request_fn == scsi_request_fn)
+		sdev = q->queuedata;
+	if (!sdev || !get_device(&sdev->sdev_gendev))
+		sdev = NULL;
+
+	return sdev;
+}
+EXPORT_SYMBOL_GPL(scsi_device_from_queue);
+
 /*
  * Function:    scsi_block_requests()
  *
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/scsi_scan.c linux-libre-4.9.52-gnu/drivers/scsi/scsi_scan.c
--- linux-libre-4.9-gnu/drivers/scsi/scsi_scan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/scsi_scan.c	2017-09-27 08:40:05.000000000 -0400
@@ -384,11 +384,12 @@ static void scsi_target_reap_ref_release
 		= container_of(kref, struct scsi_target, reap_ref);
 
 	/*
-	 * if we get here and the target is still in the CREATED state that
+	 * if we get here and the target is still in a CREATED state that
 	 * means it was allocated but never made visible (because a scan
 	 * turned up no LUNs), so don't call device_del() on it.
 	 */
-	if (starget->state != STARGET_CREATED) {
+	if ((starget->state != STARGET_CREATED) &&
+	    (starget->state != STARGET_CREATED_REMOVE)) {
 		transport_remove_device(&starget->dev);
 		device_del(&starget->dev);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/scsi_sysfs.c linux-libre-4.9.52-gnu/drivers/scsi/scsi_sysfs.c
--- linux-libre-4.9-gnu/drivers/scsi/scsi_sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/scsi_sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1204,10 +1204,6 @@ int scsi_sysfs_add_sdev(struct scsi_devi
 	struct request_queue *rq = sdev->request_queue;
 	struct scsi_target *starget = sdev->sdev_target;
 
-	error = scsi_device_set_state(sdev, SDEV_RUNNING);
-	if (error)
-		return error;
-
 	error = scsi_target_add(starget);
 	if (error)
 		return error;
@@ -1374,11 +1370,15 @@ restart:
 	spin_lock_irqsave(shost->host_lock, flags);
 	list_for_each_entry(starget, &shost->__targets, siblings) {
 		if (starget->state == STARGET_DEL ||
-		    starget->state == STARGET_REMOVE)
+		    starget->state == STARGET_REMOVE ||
+		    starget->state == STARGET_CREATED_REMOVE)
 			continue;
 		if (starget->dev.parent == dev || &starget->dev == dev) {
 			kref_get(&starget->reap_ref);
-			starget->state = STARGET_REMOVE;
+			if (starget->state == STARGET_CREATED)
+				starget->state = STARGET_CREATED_REMOVE;
+			else
+				starget->state = STARGET_REMOVE;
 			spin_unlock_irqrestore(shost->host_lock, flags);
 			__scsi_remove_target(starget);
 			scsi_target_reap(starget);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/sd.c linux-libre-4.9.52-gnu/drivers/scsi/sd.c
--- linux-libre-4.9-gnu/drivers/scsi/sd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/sd.c	2017-09-27 08:40:05.000000000 -0400
@@ -2057,6 +2057,22 @@ static void read_capacity_error(struct s
 
 #define READ_CAPACITY_RETRIES_ON_RESET	10
 
+/*
+ * Ensure that we don't overflow sector_t when CONFIG_LBDAF is not set
+ * and the reported logical block size is bigger than 512 bytes. Note
+ * that last_sector is a u64 and therefore logical_to_sectors() is not
+ * applicable.
+ */
+static bool sd_addressable_capacity(u64 lba, unsigned int sector_size)
+{
+	u64 last_sector = (lba + 1ULL) << (ilog2(sector_size) - 9);
+
+	if (sizeof(sector_t) == 4 && last_sector > U32_MAX)
+		return false;
+
+	return true;
+}
+
 static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
 						unsigned char *buffer)
 {
@@ -2122,7 +2138,7 @@ static int read_capacity_16(struct scsi_
 		return -ENODEV;
 	}
 
-	if ((sizeof(sdkp->capacity) == 4) && (lba >= 0xffffffffULL)) {
+	if (!sd_addressable_capacity(lba, sector_size)) {
 		sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
 			"kernel compiled with support for large block "
 			"devices.\n");
@@ -2208,7 +2224,7 @@ static int read_capacity_10(struct scsi_
 		return sector_size;
 	}
 
-	if ((sizeof(sdkp->capacity) == 4) && (lba == 0xffffffff)) {
+	if (!sd_addressable_capacity(lba, sector_size)) {
 		sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
 			"kernel compiled with support for large block "
 			"devices.\n");
@@ -2556,7 +2572,8 @@ sd_read_cache_type(struct scsi_disk *sdk
 		if (sdp->broken_fua) {
 			sd_first_printk(KERN_NOTICE, sdkp, "Disabling FUA\n");
 			sdkp->DPOFUA = 0;
-		} else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw) {
+		} else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw &&
+			   !sdkp->device->use_16_for_rw) {
 			sd_first_printk(KERN_NOTICE, sdkp,
 				  "Uses READ/WRITE(6), disabling FUA\n");
 			sdkp->DPOFUA = 0;
@@ -2877,7 +2894,8 @@ static int sd_revalidate_disk(struct gen
 		q->limits.io_opt = logical_to_bytes(sdp, sdkp->opt_xfer_blocks);
 		rw_max = logical_to_sectors(sdp, sdkp->opt_xfer_blocks);
 	} else
-		rw_max = BLK_DEF_MAX_SECTORS;
+		rw_max = min_not_zero(logical_to_sectors(sdp, dev_max),
+				      (sector_t)BLK_DEF_MAX_SECTORS);
 
 	/* Combine with controller limits */
 	q->limits.max_sectors = min(rw_max, queue_max_hw_sectors(q));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ses.c linux-libre-4.9.52-gnu/drivers/scsi/ses.c
--- linux-libre-4.9-gnu/drivers/scsi/ses.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ses.c	2017-09-27 08:40:05.000000000 -0400
@@ -587,7 +587,7 @@ static void ses_match_to_enclosure(struc
 
 	ses_enclosure_data_process(edev, to_scsi_device(edev->edev.parent), 0);
 
-	if (scsi_is_sas_rphy(&sdev->sdev_gendev))
+	if (scsi_is_sas_rphy(sdev->sdev_target->dev.parent))
 		efd.addr = sas_get_address(sdev);
 
 	if (efd.addr) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/sg.c linux-libre-4.9.52-gnu/drivers/scsi/sg.c
--- linux-libre-4.9-gnu/drivers/scsi/sg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/sg.c	2017-09-27 08:40:05.000000000 -0400
@@ -122,7 +122,7 @@ struct sg_device;		/* forward declaratio
 struct sg_fd;
 
 typedef struct sg_request {	/* SG_MAX_QUEUE requests outstanding per file */
-	struct sg_request *nextrp;	/* NULL -> tail request (slist) */
+	struct list_head entry;	/* list entry */
 	struct sg_fd *parentfp;	/* NULL -> not in use */
 	Sg_scatter_hold data;	/* hold buffer, perhaps scatter list */
 	sg_io_hdr_t header;	/* scsi command+info, see <scsi/sg.h> */
@@ -142,11 +142,11 @@ typedef struct sg_fd {		/* holds the sta
 	struct sg_device *parentdp;	/* owning device */
 	wait_queue_head_t read_wait;	/* queue read until command done */
 	rwlock_t rq_list_lock;	/* protect access to list in req_arr */
+	struct mutex f_mutex;	/* protect against changes in this fd */
 	int timeout;		/* defaults to SG_DEFAULT_TIMEOUT      */
 	int timeout_user;	/* defaults to SG_DEFAULT_TIMEOUT_USER */
 	Sg_scatter_hold reserve;	/* buffer held for this file descriptor */
-	unsigned save_scat_len;	/* original length of trunc. scat. element */
-	Sg_request *headrp;	/* head of request slist, NULL->empty */
+	struct list_head rq_list; /* head of request list */
 	struct fasync_struct *async_qp;	/* used by asynchronous notification */
 	Sg_request req_arr[SG_MAX_QUEUE];	/* used as singly-linked list */
 	char low_dma;		/* as in parent but possibly overridden to 1 */
@@ -155,6 +155,7 @@ typedef struct sg_fd {		/* holds the sta
 	unsigned char next_cmd_len; /* 0: automatic, >0: use on next write() */
 	char keep_orphan;	/* 0 -> drop orphan (def), 1 -> keep for read() */
 	char mmap_called;	/* 0 -> mmap() never called on this fd */
+	char res_in_use;	/* 1 -> 'reserve' array in use */
 	struct kref f_ref;
 	struct execute_work ew;
 } Sg_fd;
@@ -198,7 +199,6 @@ static void sg_remove_sfp(struct kref *)
 static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id);
 static Sg_request *sg_add_request(Sg_fd * sfp);
 static int sg_remove_request(Sg_fd * sfp, Sg_request * srp);
-static int sg_res_in_use(Sg_fd * sfp);
 static Sg_device *sg_get_dev(int dev);
 static void sg_device_destroy(struct kref *kref);
 
@@ -581,6 +581,9 @@ sg_write(struct file *filp, const char _
 	sg_io_hdr_t *hp;
 	unsigned char cmnd[SG_MAX_CDB_SIZE];
 
+	if (unlikely(segment_eq(get_fs(), KERNEL_DS)))
+		return -EINVAL;
+
 	if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
 		return -ENXIO;
 	SCSI_LOG_TIMEOUT(3, sg_printk(KERN_INFO, sdp,
@@ -611,6 +614,7 @@ sg_write(struct file *filp, const char _
 	}
 	buf += SZ_SG_HEADER;
 	__get_user(opcode, buf);
+	mutex_lock(&sfp->f_mutex);
 	if (sfp->next_cmd_len > 0) {
 		cmd_size = sfp->next_cmd_len;
 		sfp->next_cmd_len = 0;	/* reset so only this write() effected */
@@ -619,6 +623,7 @@ sg_write(struct file *filp, const char _
 		if ((opcode >= 0xc0) && old_hdr.twelve_byte)
 			cmd_size = 12;
 	}
+	mutex_unlock(&sfp->f_mutex);
 	SCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sdp,
 		"sg_write:   scsi opcode=0x%02x, cmd_size=%d\n", (int) opcode, cmd_size));
 /* Determine buffer size.  */
@@ -718,7 +723,7 @@ sg_new_write(Sg_fd *sfp, struct file *fi
 			sg_remove_request(sfp, srp);
 			return -EINVAL;	/* either MMAP_IO or DIRECT_IO (not both) */
 		}
-		if (sg_res_in_use(sfp)) {
+		if (sfp->res_in_use) {
 			sg_remove_request(sfp, srp);
 			return -EBUSY;	/* reserve buffer already being used */
 		}
@@ -823,6 +828,39 @@ static int max_sectors_bytes(struct requ
 	return max_sectors << 9;
 }
 
+static void
+sg_fill_request_table(Sg_fd *sfp, sg_req_info_t *rinfo)
+{
+	Sg_request *srp;
+	int val;
+	unsigned int ms;
+
+	val = 0;
+	list_for_each_entry(srp, &sfp->rq_list, entry) {
+		if (val > SG_MAX_QUEUE)
+			break;
+		rinfo[val].req_state = srp->done + 1;
+		rinfo[val].problem =
+			srp->header.masked_status &
+			srp->header.host_status &
+			srp->header.driver_status;
+		if (srp->done)
+			rinfo[val].duration =
+				srp->header.duration;
+		else {
+			ms = jiffies_to_msecs(jiffies);
+			rinfo[val].duration =
+				(ms > srp->header.duration) ?
+				(ms - srp->header.duration) : 0;
+		}
+		rinfo[val].orphan = srp->orphan;
+		rinfo[val].sg_io_owned = srp->sg_io_owned;
+		rinfo[val].pack_id = srp->header.pack_id;
+		rinfo[val].usr_ptr = srp->header.usr_ptr;
+		val++;
+	}
+}
+
 static long
 sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
 {
@@ -889,7 +927,7 @@ sg_ioctl(struct file *filp, unsigned int
 			return result;
 		if (val) {
 			sfp->low_dma = 1;
-			if ((0 == sfp->low_dma) && (0 == sg_res_in_use(sfp))) {
+			if ((0 == sfp->low_dma) && !sfp->res_in_use) {
 				val = (int) sfp->reserve.bufflen;
 				sg_remove_scat(sfp, &sfp->reserve);
 				sg_build_reserve(sfp, val);
@@ -935,7 +973,7 @@ sg_ioctl(struct file *filp, unsigned int
 		if (!access_ok(VERIFY_WRITE, ip, sizeof (int)))
 			return -EFAULT;
 		read_lock_irqsave(&sfp->rq_list_lock, iflags);
-		for (srp = sfp->headrp; srp; srp = srp->nextrp) {
+		list_for_each_entry(srp, &sfp->rq_list, entry) {
 			if ((1 == srp->done) && (!srp->sg_io_owned)) {
 				read_unlock_irqrestore(&sfp->rq_list_lock,
 						       iflags);
@@ -948,7 +986,8 @@ sg_ioctl(struct file *filp, unsigned int
 		return 0;
 	case SG_GET_NUM_WAITING:
 		read_lock_irqsave(&sfp->rq_list_lock, iflags);
-		for (val = 0, srp = sfp->headrp; srp; srp = srp->nextrp) {
+		val = 0;
+		list_for_each_entry(srp, &sfp->rq_list, entry) {
 			if ((1 == srp->done) && (!srp->sg_io_owned))
 				++val;
 		}
@@ -964,12 +1003,18 @@ sg_ioctl(struct file *filp, unsigned int
                         return -EINVAL;
 		val = min_t(int, val,
 			    max_sectors_bytes(sdp->device->request_queue));
+		mutex_lock(&sfp->f_mutex);
 		if (val != sfp->reserve.bufflen) {
-			if (sg_res_in_use(sfp) || sfp->mmap_called)
+			if (sfp->mmap_called ||
+			    sfp->res_in_use) {
+				mutex_unlock(&sfp->f_mutex);
 				return -EBUSY;
+			}
+
 			sg_remove_scat(sfp, &sfp->reserve);
 			sg_build_reserve(sfp, val);
 		}
+		mutex_unlock(&sfp->f_mutex);
 		return 0;
 	case SG_GET_RESERVED_SIZE:
 		val = min_t(int, sfp->reserve.bufflen,
@@ -995,6 +1040,8 @@ sg_ioctl(struct file *filp, unsigned int
 		result = get_user(val, ip);
 		if (result)
 			return result;
+		if (val > SG_MAX_CDB_SIZE)
+			return -ENOMEM;
 		sfp->next_cmd_len = (val > 0) ? val : 0;
 		return 0;
 	case SG_GET_VERSION_NUM:
@@ -1008,42 +1055,15 @@ sg_ioctl(struct file *filp, unsigned int
 			return -EFAULT;
 		else {
 			sg_req_info_t *rinfo;
-			unsigned int ms;
 
-			rinfo = kmalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE,
-								GFP_KERNEL);
+			rinfo = kzalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE,
+					GFP_KERNEL);
 			if (!rinfo)
 				return -ENOMEM;
 			read_lock_irqsave(&sfp->rq_list_lock, iflags);
-			for (srp = sfp->headrp, val = 0; val < SG_MAX_QUEUE;
-			     ++val, srp = srp ? srp->nextrp : srp) {
-				memset(&rinfo[val], 0, SZ_SG_REQ_INFO);
-				if (srp) {
-					rinfo[val].req_state = srp->done + 1;
-					rinfo[val].problem =
-					    srp->header.masked_status & 
-					    srp->header.host_status & 
-					    srp->header.driver_status;
-					if (srp->done)
-						rinfo[val].duration =
-							srp->header.duration;
-					else {
-						ms = jiffies_to_msecs(jiffies);
-						rinfo[val].duration =
-						    (ms > srp->header.duration) ?
-						    (ms - srp->header.duration) : 0;
-					}
-					rinfo[val].orphan = srp->orphan;
-					rinfo[val].sg_io_owned =
-							srp->sg_io_owned;
-					rinfo[val].pack_id =
-							srp->header.pack_id;
-					rinfo[val].usr_ptr =
-							srp->header.usr_ptr;
-				}
-			}
+			sg_fill_request_table(sfp, rinfo);
 			read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
-			result = __copy_to_user(p, rinfo, 
+			result = __copy_to_user(p, rinfo,
 						SZ_SG_REQ_INFO * SG_MAX_QUEUE);
 			result = result ? -EFAULT : 0;
 			kfree(rinfo);
@@ -1149,7 +1169,7 @@ sg_poll(struct file *filp, poll_table *
 		return POLLERR;
 	poll_wait(filp, &sfp->read_wait, wait);
 	read_lock_irqsave(&sfp->rq_list_lock, iflags);
-	for (srp = sfp->headrp; srp; srp = srp->nextrp) {
+	list_for_each_entry(srp, &sfp->rq_list, entry) {
 		/* if any read waiting, flag it */
 		if ((0 == res) && (1 == srp->done) && (!srp->sg_io_owned))
 			res = POLLIN | POLLRDNORM;
@@ -1230,6 +1250,7 @@ sg_mmap(struct file *filp, struct vm_are
 	unsigned long req_sz, len, sa;
 	Sg_scatter_hold *rsv_schp;
 	int k, length;
+	int ret = 0;
 
 	if ((!filp) || (!vma) || (!(sfp = (Sg_fd *) filp->private_data)))
 		return -ENXIO;
@@ -1240,8 +1261,11 @@ sg_mmap(struct file *filp, struct vm_are
 	if (vma->vm_pgoff)
 		return -EINVAL;	/* want no offset */
 	rsv_schp = &sfp->reserve;
-	if (req_sz > rsv_schp->bufflen)
-		return -ENOMEM;	/* cannot map more than reserved buffer */
+	mutex_lock(&sfp->f_mutex);
+	if (req_sz > rsv_schp->bufflen) {
+		ret = -ENOMEM;	/* cannot map more than reserved buffer */
+		goto out;
+	}
 
 	sa = vma->vm_start;
 	length = 1 << (PAGE_SHIFT + rsv_schp->page_order);
@@ -1255,7 +1279,9 @@ sg_mmap(struct file *filp, struct vm_are
 	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
 	vma->vm_private_data = sfp;
 	vma->vm_ops = &sg_mmap_vm_ops;
-	return 0;
+out:
+	mutex_unlock(&sfp->f_mutex);
+	return ret;
 }
 
 static void
@@ -1722,13 +1748,25 @@ sg_start_req(Sg_request *srp, unsigned c
 		md = &map_data;
 
 	if (md) {
-		if (!sg_res_in_use(sfp) && dxfer_len <= rsv_schp->bufflen)
+		mutex_lock(&sfp->f_mutex);
+		if (dxfer_len <= rsv_schp->bufflen &&
+		    !sfp->res_in_use) {
+			sfp->res_in_use = 1;
 			sg_link_reserve(sfp, srp, dxfer_len);
-		else {
+		} else if (hp->flags & SG_FLAG_MMAP_IO) {
+			res = -EBUSY; /* sfp->res_in_use == 1 */
+			if (dxfer_len > rsv_schp->bufflen)
+				res = -ENOMEM;
+			mutex_unlock(&sfp->f_mutex);
+			return res;
+		} else {
 			res = sg_build_indirect(req_schp, sfp, dxfer_len);
-			if (res)
+			if (res) {
+				mutex_unlock(&sfp->f_mutex);
 				return res;
+			}
 		}
+		mutex_unlock(&sfp->f_mutex);
 
 		md->pages = req_schp->pages;
 		md->page_order = req_schp->page_order;
@@ -1750,6 +1788,10 @@ sg_start_req(Sg_request *srp, unsigned c
 			return res;
 
 		iov_iter_truncate(&i, hp->dxfer_len);
+		if (!iov_iter_count(&i)) {
+			kfree(iov);
+			return -EINVAL;
+		}
 
 		res = blk_rq_map_user_iov(q, rq, md, &i, GFP_ATOMIC);
 		kfree(iov);
@@ -2013,8 +2055,9 @@ sg_unlink_reserve(Sg_fd * sfp, Sg_reques
 	req_schp->pages = NULL;
 	req_schp->page_order = 0;
 	req_schp->sglist_len = 0;
-	sfp->save_scat_len = 0;
 	srp->res_used = 0;
+	/* Called without mutex lock to avoid deadlock */
+	sfp->res_in_use = 0;
 }
 
 static Sg_request *
@@ -2024,7 +2067,7 @@ sg_get_rq_mark(Sg_fd * sfp, int pack_id)
 	unsigned long iflags;
 
 	write_lock_irqsave(&sfp->rq_list_lock, iflags);
-	for (resp = sfp->headrp; resp; resp = resp->nextrp) {
+	list_for_each_entry(resp, &sfp->rq_list, entry) {
 		/* look for requests that are ready + not SG_IO owned */
 		if ((1 == resp->done) && (!resp->sg_io_owned) &&
 		    ((-1 == pack_id) || (resp->header.pack_id == pack_id))) {
@@ -2042,70 +2085,45 @@ sg_add_request(Sg_fd * sfp)
 {
 	int k;
 	unsigned long iflags;
-	Sg_request *resp;
 	Sg_request *rp = sfp->req_arr;
 
 	write_lock_irqsave(&sfp->rq_list_lock, iflags);
-	resp = sfp->headrp;
-	if (!resp) {
-		memset(rp, 0, sizeof (Sg_request));
-		rp->parentfp = sfp;
-		resp = rp;
-		sfp->headrp = resp;
-	} else {
-		if (0 == sfp->cmd_q)
-			resp = NULL;	/* command queuing disallowed */
-		else {
-			for (k = 0; k < SG_MAX_QUEUE; ++k, ++rp) {
-				if (!rp->parentfp)
-					break;
-			}
-			if (k < SG_MAX_QUEUE) {
-				memset(rp, 0, sizeof (Sg_request));
-				rp->parentfp = sfp;
-				while (resp->nextrp)
-					resp = resp->nextrp;
-				resp->nextrp = rp;
-				resp = rp;
-			} else
-				resp = NULL;
+	if (!list_empty(&sfp->rq_list)) {
+		if (!sfp->cmd_q)
+			goto out_unlock;
+
+		for (k = 0; k < SG_MAX_QUEUE; ++k, ++rp) {
+			if (!rp->parentfp)
+				break;
 		}
+		if (k >= SG_MAX_QUEUE)
+			goto out_unlock;
 	}
-	if (resp) {
-		resp->nextrp = NULL;
-		resp->header.duration = jiffies_to_msecs(jiffies);
-	}
+	memset(rp, 0, sizeof (Sg_request));
+	rp->parentfp = sfp;
+	rp->header.duration = jiffies_to_msecs(jiffies);
+	list_add_tail(&rp->entry, &sfp->rq_list);
 	write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
-	return resp;
+	return rp;
+out_unlock:
+	write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
+	return NULL;
 }
 
 /* Return of 1 for found; 0 for not found */
 static int
 sg_remove_request(Sg_fd * sfp, Sg_request * srp)
 {
-	Sg_request *prev_rp;
-	Sg_request *rp;
 	unsigned long iflags;
 	int res = 0;
 
-	if ((!sfp) || (!srp) || (!sfp->headrp))
+	if (!sfp || !srp || list_empty(&sfp->rq_list))
 		return res;
 	write_lock_irqsave(&sfp->rq_list_lock, iflags);
-	prev_rp = sfp->headrp;
-	if (srp == prev_rp) {
-		sfp->headrp = prev_rp->nextrp;
-		prev_rp->parentfp = NULL;
+	if (!list_empty(&srp->entry)) {
+		list_del(&srp->entry);
+		srp->parentfp = NULL;
 		res = 1;
-	} else {
-		while ((rp = prev_rp->nextrp)) {
-			if (srp == rp) {
-				prev_rp->nextrp = rp->nextrp;
-				rp->parentfp = NULL;
-				res = 1;
-				break;
-			}
-			prev_rp = rp;
-		}
 	}
 	write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
 	return res;
@@ -2124,8 +2142,9 @@ sg_add_sfp(Sg_device * sdp)
 
 	init_waitqueue_head(&sfp->read_wait);
 	rwlock_init(&sfp->rq_list_lock);
-
+	INIT_LIST_HEAD(&sfp->rq_list);
 	kref_init(&sfp->f_ref);
+	mutex_init(&sfp->f_mutex);
 	sfp->timeout = SG_DEFAULT_TIMEOUT;
 	sfp->timeout_user = SG_DEFAULT_TIMEOUT_USER;
 	sfp->force_packid = SG_DEF_FORCE_PACK_ID;
@@ -2164,10 +2183,13 @@ sg_remove_sfp_usercontext(struct work_st
 {
 	struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work);
 	struct sg_device *sdp = sfp->parentdp;
+	Sg_request *srp;
 
 	/* Cleanup any responses which were never read(). */
-	while (sfp->headrp)
-		sg_finish_rem_req(sfp->headrp);
+	while (!list_empty(&sfp->rq_list)) {
+		srp = list_first_entry(&sfp->rq_list, Sg_request, entry);
+		sg_finish_rem_req(srp);
+	}
 
 	if (sfp->reserve.bufflen > 0) {
 		SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp,
@@ -2201,20 +2223,6 @@ sg_remove_sfp(struct kref *kref)
 	schedule_work(&sfp->ew.work);
 }
 
-static int
-sg_res_in_use(Sg_fd * sfp)
-{
-	const Sg_request *srp;
-	unsigned long iflags;
-
-	read_lock_irqsave(&sfp->rq_list_lock, iflags);
-	for (srp = sfp->headrp; srp; srp = srp->nextrp)
-		if (srp->res_used)
-			break;
-	read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
-	return srp ? 1 : 0;
-}
-
 #ifdef CONFIG_SCSI_PROC_FS
 static int
 sg_idr_max_id(int id, void *p, void *data)
@@ -2584,7 +2592,7 @@ static int sg_proc_seq_show_devstrs(stru
 /* must be called while holding sg_index_lock */
 static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
 {
-	int k, m, new_interface, blen, usg;
+	int k, new_interface, blen, usg;
 	Sg_request *srp;
 	Sg_fd *fp;
 	const sg_io_hdr_t *hp;
@@ -2604,13 +2612,11 @@ static void sg_proc_debug_helper(struct
 		seq_printf(s, "   cmd_q=%d f_packid=%d k_orphan=%d closed=0\n",
 			   (int) fp->cmd_q, (int) fp->force_packid,
 			   (int) fp->keep_orphan);
-		for (m = 0, srp = fp->headrp;
-				srp != NULL;
-				++m, srp = srp->nextrp) {
+		list_for_each_entry(srp, &fp->rq_list, entry) {
 			hp = &srp->header;
 			new_interface = (hp->interface_id == '\0') ? 0 : 1;
 			if (srp->res_used) {
-				if (new_interface && 
+				if (new_interface &&
 				    (SG_FLAG_MMAP_IO & hp->flags))
 					cp = "     mmap>> ";
 				else
@@ -2641,7 +2647,7 @@ static void sg_proc_debug_helper(struct
 			seq_printf(s, "ms sgat=%d op=0x%02x\n", usg,
 				   (int) srp->data.cmd_opcode);
 		}
-		if (0 == m)
+		if (list_empty(&fp->rq_list))
 			seq_puts(s, "     No requests active\n");
 		read_unlock(&fp->rq_list_lock);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/smartpqi/smartpqi_init.c linux-libre-4.9.52-gnu/drivers/scsi/smartpqi/smartpqi_init.c
--- linux-libre-4.9-gnu/drivers/scsi/smartpqi/smartpqi_init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/smartpqi/smartpqi_init.c	2017-09-27 08:40:05.000000000 -0400
@@ -533,8 +533,7 @@ static int pqi_write_current_time_to_hos
 	size_t buffer_length;
 	time64_t local_time;
 	unsigned int year;
-	struct timeval time;
-	struct rtc_time tm;
+	struct tm tm;
 
 	buffer_length = sizeof(*buffer);
 
@@ -551,9 +550,8 @@ static int pqi_write_current_time_to_hos
 	put_unaligned_le16(sizeof(buffer->time),
 		&buffer->time_length);
 
-	do_gettimeofday(&time);
-	local_time = time.tv_sec - (sys_tz.tz_minuteswest * 60);
-	rtc_time64_to_tm(local_time, &tm);
+	local_time = ktime_get_real_seconds();
+	time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm);
 	year = tm.tm_year + 1900;
 
 	buffer->time[0] = bin2bcd(tm.tm_hour);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/snic/snic_main.c linux-libre-4.9.52-gnu/drivers/scsi/snic/snic_main.c
--- linux-libre-4.9-gnu/drivers/scsi/snic/snic_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/snic/snic_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -591,6 +591,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "dflt sgl pool creation failed\n");
 
+		ret = -ENOMEM;
 		goto err_free_res;
 	}
 
@@ -601,6 +602,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "max sgl pool creation failed\n");
 
+		ret = -ENOMEM;
 		goto err_free_dflt_sgl_pool;
 	}
 
@@ -611,6 +613,7 @@ snic_probe(struct pci_dev *pdev, const s
 	if (!pool) {
 		SNIC_HOST_ERR(shost, "snic tmreq info pool creation failed.\n");
 
+		ret = -ENOMEM;
 		goto err_free_max_sgl_pool;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/sr.c linux-libre-4.9.52-gnu/drivers/scsi/sr.c
--- linux-libre-4.9-gnu/drivers/scsi/sr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/sr.c	2017-09-27 08:40:05.000000000 -0400
@@ -833,6 +833,7 @@ static void get_capabilities(struct scsi
 	unsigned char *buffer;
 	struct scsi_mode_data data;
 	struct scsi_sense_hdr sshdr;
+	unsigned int ms_len = 128;
 	int rc, n;
 
 	static const char *loadmech[] =
@@ -859,10 +860,11 @@ static void get_capabilities(struct scsi
 	scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr);
 
 	/* ask for mode page 0x2a */
-	rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, 128,
+	rc = scsi_mode_sense(cd->device, 0, 0x2a, buffer, ms_len,
 			     SR_TIMEOUT, 3, &data, NULL);
 
-	if (!scsi_status_is_good(rc)) {
+	if (!scsi_status_is_good(rc) || data.length > ms_len ||
+	    data.header_length + data.block_descriptor_length > data.length) {
 		/* failed, drive doesn't have capabilities mode page */
 		cd->cdi.speed = 1;
 		cd->cdi.mask |= (CDC_CD_R | CDC_CD_RW | CDC_DVD_R |
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/storvsc_drv.c linux-libre-4.9.52-gnu/drivers/scsi/storvsc_drv.c
--- linux-libre-4.9-gnu/drivers/scsi/storvsc_drv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/storvsc_drv.c	2017-09-27 08:40:05.000000000 -0400
@@ -136,6 +136,8 @@ struct hv_fc_wwn_packet {
 #define SRB_FLAGS_PORT_DRIVER_RESERVED		0x0F000000
 #define SRB_FLAGS_CLASS_DRIVER_RESERVED		0xF0000000
 
+#define SP_UNTAGGED			((unsigned char) ~0)
+#define SRB_SIMPLE_TAG_REQUEST		0x20
 
 /*
  * Platform neutral description of a scsi request -
@@ -375,6 +377,7 @@ enum storvsc_request_type {
 #define SRB_STATUS_SUCCESS	0x01
 #define SRB_STATUS_ABORTED	0x02
 #define SRB_STATUS_ERROR	0x04
+#define SRB_STATUS_DATA_OVERRUN	0x12
 
 #define SRB_STATUS(status) \
 	(status & ~(SRB_STATUS_AUTOSENSE_VALID | SRB_STATUS_QUEUE_FROZEN))
@@ -397,8 +400,6 @@ MODULE_PARM_DESC(storvsc_vcpus_per_sub_c
  */
 static int storvsc_timeout = 180;
 
-static int msft_blist_flags = BLIST_TRY_VPD_PAGES;
-
 #if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
 static struct scsi_transport_template *fc_transport_template;
 #endif
@@ -889,6 +890,13 @@ static void storvsc_handle_error(struct
 	switch (SRB_STATUS(vm_srb->srb_status)) {
 	case SRB_STATUS_ERROR:
 		/*
+		 * Let upper layer deal with error when
+		 * sense message is present.
+		 */
+
+		if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID)
+			break;
+		/*
 		 * If there is an error; offline the device since all
 		 * error recovery strategies would have already been
 		 * deployed on the host side. However, if the command
@@ -953,6 +961,7 @@ static void storvsc_command_completion(s
 	struct scsi_cmnd *scmnd = cmd_request->cmd;
 	struct scsi_sense_hdr sense_hdr;
 	struct vmscsi_request *vm_srb;
+	u32 data_transfer_length;
 	struct Scsi_Host *host;
 	u32 payload_sz = cmd_request->payload_sz;
 	void *payload = cmd_request->payload;
@@ -960,6 +969,7 @@ static void storvsc_command_completion(s
 	host = stor_dev->host;
 
 	vm_srb = &cmd_request->vstor_packet.vm_srb;
+	data_transfer_length = vm_srb->data_transfer_length;
 
 	scmnd->result = vm_srb->scsi_status;
 
@@ -973,13 +983,20 @@ static void storvsc_command_completion(s
 					     &sense_hdr);
 	}
 
-	if (vm_srb->srb_status != SRB_STATUS_SUCCESS)
+	if (vm_srb->srb_status != SRB_STATUS_SUCCESS) {
 		storvsc_handle_error(vm_srb, scmnd, host, sense_hdr.asc,
 					 sense_hdr.ascq);
+		/*
+		 * The Windows driver set data_transfer_length on
+		 * SRB_STATUS_DATA_OVERRUN. On other errors, this value
+		 * is untouched.  In these cases we set it to 0.
+		 */
+		if (vm_srb->srb_status != SRB_STATUS_DATA_OVERRUN)
+			data_transfer_length = 0;
+	}
 
 	scsi_set_resid(scmnd,
-		cmd_request->payload->range.len -
-		vm_srb->data_transfer_length);
+		cmd_request->payload->range.len - data_transfer_length);
 
 	scmnd->scsi_done(scmnd);
 
@@ -1264,6 +1281,22 @@ static int storvsc_do_io(struct hv_devic
 	return ret;
 }
 
+static int storvsc_device_alloc(struct scsi_device *sdevice)
+{
+	/*
+	 * Set blist flag to permit the reading of the VPD pages even when
+	 * the target may claim SPC-2 compliance. MSFT targets currently
+	 * claim SPC-2 compliance while they implement post SPC-2 features.
+	 * With this flag we can correctly handle WRITE_SAME_16 issues.
+	 *
+	 * Hypervisor reports SCSI_UNKNOWN type for DVD ROM device but
+	 * still supports REPORT LUN.
+	 */
+	sdevice->sdev_bflags = BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES;
+
+	return 0;
+}
+
 static int storvsc_device_configure(struct scsi_device *sdevice)
 {
 
@@ -1279,14 +1312,6 @@ static int storvsc_device_configure(stru
 	sdevice->no_write_same = 1;
 
 	/*
-	 * Add blist flags to permit the reading of the VPD pages even when
-	 * the target may claim SPC-2 compliance. MSFT targets currently
-	 * claim SPC-2 compliance while they implement post SPC-2 features.
-	 * With this patch we can correctly handle WRITE_SAME_16 issues.
-	 */
-	sdevice->sdev_bflags |= msft_blist_flags;
-
-	/*
 	 * If the host is WIN8 or WIN8 R2, claim conformance to SPC-3
 	 * if the device is a MSFT virtual device.  If the host is
 	 * WIN10 or newer, allow write_same.
@@ -1451,6 +1476,13 @@ static int storvsc_queuecommand(struct S
 	vm_srb->win8_extension.srb_flags |=
 		SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
 
+	if (scmnd->device->tagged_supported) {
+		vm_srb->win8_extension.srb_flags |=
+		(SRB_FLAGS_QUEUE_ACTION_ENABLE | SRB_FLAGS_NO_QUEUE_FREEZE);
+		vm_srb->win8_extension.queue_tag = SP_UNTAGGED;
+		vm_srb->win8_extension.queue_action = SRB_SIMPLE_TAG_REQUEST;
+	}
+
 	/* Build the SRB */
 	switch (scmnd->sc_data_direction) {
 	case DMA_TO_DEVICE:
@@ -1527,6 +1559,8 @@ static int storvsc_queuecommand(struct S
 	ret = storvsc_do_io(dev, cmd_request);
 
 	if (ret == -EAGAIN) {
+		if (payload_sz > sizeof(cmd_request->mpb))
+			kfree(payload);
 		/* no more space */
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 	}
@@ -1543,6 +1577,7 @@ static struct scsi_host_template scsi_dr
 	.eh_host_reset_handler =	storvsc_host_reset_handler,
 	.proc_name =		"storvsc_host",
 	.eh_timed_out =		storvsc_eh_timed_out,
+	.slave_alloc =		storvsc_device_alloc,
 	.slave_configure =	storvsc_device_configure,
 	.cmd_per_lun =		255,
 	.this_id =		-1,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ufs/ufshcd.c linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufshcd.c
--- linux-libre-4.9-gnu/drivers/scsi/ufs/ufshcd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufshcd.c	2017-09-27 08:40:05.000000000 -0400
@@ -123,6 +123,7 @@ enum {
 	UFSHCD_STATE_RESET,
 	UFSHCD_STATE_ERROR,
 	UFSHCD_STATE_OPERATIONAL,
+	UFSHCD_STATE_EH_SCHEDULED,
 };
 
 /* UFSHCD error handling flags */
@@ -188,6 +189,30 @@ ufs_get_pm_lvl_to_link_pwr_state(enum uf
 	return ufs_pm_lvl_states[lvl].link_state;
 }
 
+static struct ufs_dev_fix ufs_fixups[] = {
+	/* UFS cards deviations table */
+	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
+		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
+	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
+	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
+		UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS),
+	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
+		UFS_DEVICE_NO_FASTAUTO),
+	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
+		UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE),
+	UFS_FIX(UFS_VENDOR_TOSHIBA, UFS_ANY_MODEL,
+		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
+	UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9C8KBADG",
+		UFS_DEVICE_QUIRK_PA_TACTIVATE),
+	UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9D8KBADG",
+		UFS_DEVICE_QUIRK_PA_TACTIVATE),
+	UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
+	UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL,
+		UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME),
+
+	END_FIX
+};
+
 static void ufshcd_tmc_handler(struct ufs_hba *hba);
 static void ufshcd_async_scan(void *data, async_cookie_t cookie);
 static int ufshcd_reset_and_restore(struct ufs_hba *hba);
@@ -1088,7 +1113,7 @@ ufshcd_send_uic_cmd(struct ufs_hba *hba,
  *
  * Returns 0 in case of success, non-zero value in case of failure
  */
-static int ufshcd_map_sg(struct ufshcd_lrb *lrbp)
+static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 {
 	struct ufshcd_sg_entry *prd_table;
 	struct scatterlist *sg;
@@ -1102,8 +1127,13 @@ static int ufshcd_map_sg(struct ufshcd_l
 		return sg_segments;
 
 	if (sg_segments) {
-		lrbp->utr_descriptor_ptr->prd_table_length =
-					cpu_to_le16((u16) (sg_segments));
+		if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN)
+			lrbp->utr_descriptor_ptr->prd_table_length =
+				cpu_to_le16((u16)(sg_segments *
+					sizeof(struct ufshcd_sg_entry)));
+		else
+			lrbp->utr_descriptor_ptr->prd_table_length =
+				cpu_to_le16((u16) (sg_segments));
 
 		prd_table = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr;
 
@@ -1410,6 +1440,7 @@ static int ufshcd_queuecommand(struct Sc
 	switch (hba->ufshcd_state) {
 	case UFSHCD_STATE_OPERATIONAL:
 		break;
+	case UFSHCD_STATE_EH_SCHEDULED:
 	case UFSHCD_STATE_RESET:
 		err = SCSI_MLQUEUE_HOST_BUSY;
 		goto out_unlock;
@@ -1465,7 +1496,7 @@ static int ufshcd_queuecommand(struct Sc
 
 	ufshcd_comp_scsi_upiu(hba, lrbp);
 
-	err = ufshcd_map_sg(lrbp);
+	err = ufshcd_map_sg(hba, lrbp);
 	if (err) {
 		lrbp->cmd = NULL;
 		clear_bit_unlock(tag, &hba->lrb_in_use);
@@ -2320,12 +2351,21 @@ static void ufshcd_host_memory_configure
 				cpu_to_le32(upper_32_bits(cmd_desc_element_addr));
 
 		/* Response upiu and prdt offset should be in double words */
-		utrdlp[i].response_upiu_offset =
+		if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) {
+			utrdlp[i].response_upiu_offset =
+				cpu_to_le16(response_offset);
+			utrdlp[i].prd_table_offset =
+				cpu_to_le16(prdt_offset);
+			utrdlp[i].response_upiu_length =
+				cpu_to_le16(ALIGNED_UPIU_SIZE);
+		} else {
+			utrdlp[i].response_upiu_offset =
 				cpu_to_le16((response_offset >> 2));
-		utrdlp[i].prd_table_offset =
+			utrdlp[i].prd_table_offset =
 				cpu_to_le16((prdt_offset >> 2));
-		utrdlp[i].response_upiu_length =
+			utrdlp[i].response_upiu_length =
 				cpu_to_le16(ALIGNED_UPIU_SIZE >> 2);
+		}
 
 		hba->lrb[i].utr_descriptor_ptr = (utrdlp + i);
 		hba->lrb[i].ucd_req_ptr =
@@ -3090,7 +3130,16 @@ static int ufshcd_link_startup(struct uf
 {
 	int ret;
 	int retries = DME_LINKSTARTUP_RETRIES;
+	bool link_startup_again = false;
+
+	/*
+	 * If UFS device isn't active then we will have to issue link startup
+	 * 2 times to make sure the device state move to active.
+	 */
+	if (!ufshcd_is_ufs_dev_active(hba))
+		link_startup_again = true;
 
+link_startup:
 	do {
 		ufshcd_vops_link_startup_notify(hba, PRE_CHANGE);
 
@@ -3116,6 +3165,12 @@ static int ufshcd_link_startup(struct uf
 		/* failed to get the link up... retire */
 		goto out;
 
+	if (link_startup_again) {
+		link_startup_again = false;
+		retries = DME_LINKSTARTUP_RETRIES;
+		goto link_startup;
+	}
+
 	if (hba->quirks & UFSHCD_QUIRK_BROKEN_LCC) {
 		ret = ufshcd_disable_device_tx_lcc(hba);
 		if (ret)
@@ -4158,7 +4213,7 @@ static void ufshcd_check_errors(struct u
 			/* block commands from scsi mid-layer */
 			scsi_block_requests(hba->host);
 
-			hba->ufshcd_state = UFSHCD_STATE_ERROR;
+			hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED;
 			schedule_work(&hba->eh_work);
 		}
 	}
@@ -4965,6 +5020,76 @@ out:
 	return ret;
 }
 
+/**
+ * ufshcd_quirk_tune_host_pa_tactivate - Ensures that host PA_TACTIVATE is
+ * less than device PA_TACTIVATE time.
+ * @hba: per-adapter instance
+ *
+ * Some UFS devices require host PA_TACTIVATE to be lower than device
+ * PA_TACTIVATE, we need to enable UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE quirk
+ * for such devices.
+ *
+ * Returns zero on success, non-zero error value on failure.
+ */
+static int ufshcd_quirk_tune_host_pa_tactivate(struct ufs_hba *hba)
+{
+	int ret = 0;
+	u32 granularity, peer_granularity;
+	u32 pa_tactivate, peer_pa_tactivate;
+	u32 pa_tactivate_us, peer_pa_tactivate_us;
+	u8 gran_to_us_table[] = {1, 4, 8, 16, 32, 100};
+
+	ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_GRANULARITY),
+				  &granularity);
+	if (ret)
+		goto out;
+
+	ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY),
+				  &peer_granularity);
+	if (ret)
+		goto out;
+
+	if ((granularity < PA_GRANULARITY_MIN_VAL) ||
+	    (granularity > PA_GRANULARITY_MAX_VAL)) {
+		dev_err(hba->dev, "%s: invalid host PA_GRANULARITY %d",
+			__func__, granularity);
+		return -EINVAL;
+	}
+
+	if ((peer_granularity < PA_GRANULARITY_MIN_VAL) ||
+	    (peer_granularity > PA_GRANULARITY_MAX_VAL)) {
+		dev_err(hba->dev, "%s: invalid device PA_GRANULARITY %d",
+			__func__, peer_granularity);
+		return -EINVAL;
+	}
+
+	ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &pa_tactivate);
+	if (ret)
+		goto out;
+
+	ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_TACTIVATE),
+				  &peer_pa_tactivate);
+	if (ret)
+		goto out;
+
+	pa_tactivate_us = pa_tactivate * gran_to_us_table[granularity - 1];
+	peer_pa_tactivate_us = peer_pa_tactivate *
+			     gran_to_us_table[peer_granularity - 1];
+
+	if (pa_tactivate_us > peer_pa_tactivate_us) {
+		u32 new_peer_pa_tactivate;
+
+		new_peer_pa_tactivate = pa_tactivate_us /
+				      gran_to_us_table[peer_granularity - 1];
+		new_peer_pa_tactivate++;
+		ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(PA_TACTIVATE),
+					  new_peer_pa_tactivate);
+	}
+
+out:
+	return ret;
+}
+
 static void ufshcd_tune_unipro_params(struct ufs_hba *hba)
 {
 	if (ufshcd_is_unipro_pa_params_tuning_req(hba)) {
@@ -4975,6 +5100,11 @@ static void ufshcd_tune_unipro_params(st
 	if (hba->dev_quirks & UFS_DEVICE_QUIRK_PA_TACTIVATE)
 		/* set 1ms timeout for PA_TACTIVATE */
 		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 10);
+
+	if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE)
+		ufshcd_quirk_tune_host_pa_tactivate(hba);
+
+	ufshcd_vops_apply_dev_quirks(hba);
 }
 
 /**
@@ -6515,10 +6645,12 @@ int ufshcd_init(struct ufs_hba *hba, voi
 	pm_runtime_get_sync(dev);
 
 	/*
-	 * The device-initialize-sequence hasn't been invoked yet.
-	 * Set the device to power-off state
+	 * We are assuming that device wasn't put in sleep/power-down
+	 * state exclusively during the boot stage before kernel.
+	 * This assumption helps avoid doing link startup twice during
+	 * ufshcd_probe_hba().
 	 */
-	ufshcd_set_ufs_dev_poweroff(hba);
+	ufshcd_set_ufs_dev_active(hba);
 
 	async_schedule(ufshcd_async_scan, hba);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ufs/ufshcd.h linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufshcd.h
--- linux-libre-4.9-gnu/drivers/scsi/ufs/ufshcd.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufshcd.h	2017-09-27 08:40:05.000000000 -0400
@@ -261,6 +261,7 @@ struct ufs_pwr_mode_info {
  * @pwr_change_notify: called before and after a power mode change
  *			is carried out to allow vendor spesific capabilities
  *			to be set.
+ * @apply_dev_quirks: called to apply device specific quirks
  * @suspend: called during host controller PM callback
  * @resume: called during host controller PM callback
  * @dbg_register_dump: used to dump controller debug information
@@ -283,6 +284,7 @@ struct ufs_hba_variant_ops {
 					enum ufs_notify_change_status status,
 					struct ufs_pa_layer_attr *,
 					struct ufs_pa_layer_attr *);
+	int	(*apply_dev_quirks)(struct ufs_hba *);
 	int     (*suspend)(struct ufs_hba *, enum ufs_pm_op);
 	int     (*resume)(struct ufs_hba *, enum ufs_pm_op);
 	void	(*dbg_register_dump)(struct ufs_hba *hba);
@@ -474,6 +476,12 @@ struct ufs_hba {
 	 */
 	#define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION		UFS_BIT(5)
 
+	/*
+	 * This quirk needs to be enabled if the host contoller regards
+	 * resolution of the values of PRDTO and PRDTL in UTRD as byte.
+	 */
+	#define UFSHCD_QUIRK_PRDT_BYTE_GRAN			UFS_BIT(7)
+
 	unsigned int quirks;	/* Deviations from standard UFSHCI spec. */
 
 	/* Device deviations from standard UFS device spec. */
@@ -799,6 +807,13 @@ static inline int ufshcd_vops_pwr_change
 	return -ENOTSUPP;
 }
 
+static inline int ufshcd_vops_apply_dev_quirks(struct ufs_hba *hba)
+{
+	if (hba->vops && hba->vops->apply_dev_quirks)
+		return hba->vops->apply_dev_quirks(hba);
+	return 0;
+}
+
 static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op)
 {
 	if (hba->vops && hba->vops->suspend)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ufs/ufs-qcom.c linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufs-qcom.c
--- linux-libre-4.9-gnu/drivers/scsi/ufs/ufs-qcom.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufs-qcom.c	2017-09-27 08:40:05.000000000 -0400
@@ -23,6 +23,7 @@
 #include "unipro.h"
 #include "ufs-qcom.h"
 #include "ufshci.h"
+#include "ufs_quirks.h"
 #define UFS_QCOM_DEFAULT_DBG_PRINT_EN	\
 	(UFS_QCOM_DBG_PRINT_REGS_EN | UFS_QCOM_DBG_PRINT_TEST_BUS_EN)
 
@@ -1031,6 +1032,34 @@ out:
 	return ret;
 }
 
+static int ufs_qcom_quirk_host_pa_saveconfigtime(struct ufs_hba *hba)
+{
+	int err;
+	u32 pa_vs_config_reg1;
+
+	err = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_VS_CONFIG_REG1),
+			     &pa_vs_config_reg1);
+	if (err)
+		goto out;
+
+	/* Allow extension of MSB bits of PA_SaveConfigTime attribute */
+	err = ufshcd_dme_set(hba, UIC_ARG_MIB(PA_VS_CONFIG_REG1),
+			    (pa_vs_config_reg1 | (1 << 12)));
+
+out:
+	return err;
+}
+
+static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
+{
+	int err = 0;
+
+	if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME)
+		err = ufs_qcom_quirk_host_pa_saveconfigtime(hba);
+
+	return err;
+}
+
 static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba *hba)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
@@ -1616,6 +1645,7 @@ static struct ufs_hba_variant_ops ufs_hb
 	.hce_enable_notify      = ufs_qcom_hce_enable_notify,
 	.link_startup_notify    = ufs_qcom_link_startup_notify,
 	.pwr_change_notify	= ufs_qcom_pwr_change_notify,
+	.apply_dev_quirks	= ufs_qcom_apply_dev_quirks,
 	.suspend		= ufs_qcom_suspend,
 	.resume			= ufs_qcom_resume,
 	.dbg_register_dump	= ufs_qcom_dump_dbg_regs,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ufs/ufs-qcom.h linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufs-qcom.h
--- linux-libre-4.9-gnu/drivers/scsi/ufs/ufs-qcom.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufs-qcom.h	2017-09-27 08:40:05.000000000 -0400
@@ -142,6 +142,7 @@ enum ufs_qcom_phy_init_type {
 	 UFS_QCOM_DBG_PRINT_TEST_BUS_EN)
 
 /* QUniPro Vendor specific attributes */
+#define PA_VS_CONFIG_REG1	0x9000
 #define DME_VS_CORE_CLK_CTRL	0xD002
 /* bit and mask definitions for DME_VS_CORE_CLK_CTRL attribute */
 #define DME_VS_CORE_CLK_CTRL_CORE_CLK_DIV_EN_BIT		BIT(8)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ufs/ufs_quirks.h linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufs_quirks.h
--- linux-libre-4.9-gnu/drivers/scsi/ufs/ufs_quirks.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ufs/ufs_quirks.h	2017-09-27 08:40:05.000000000 -0400
@@ -128,26 +128,23 @@ struct ufs_dev_fix {
  */
 #define UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM	(1 << 6)
 
+/*
+ * Some UFS devices require host PA_TACTIVATE to be lower than device
+ * PA_TACTIVATE, enabling this quirk ensure this.
+ */
+#define UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE	(1 << 7)
+
+/*
+ * The max. value PA_SaveConfigTime is 250 (10us) but this is not enough for
+ * some vendors.
+ * Gear switch from PWM to HS may fail even with this max. PA_SaveConfigTime.
+ * Gear switch can be issued by host controller as an error recovery and any
+ * software delay will not help on this case so we need to increase
+ * PA_SaveConfigTime to >32us as per vendor recommendation.
+ */
+#define UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME	(1 << 8)
+
 struct ufs_hba;
 void ufs_advertise_fixup_device(struct ufs_hba *hba);
 
-static struct ufs_dev_fix ufs_fixups[] = {
-	/* UFS cards deviations table */
-	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
-		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
-	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
-	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
-		UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS),
-	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
-		UFS_DEVICE_NO_FASTAUTO),
-	UFS_FIX(UFS_VENDOR_TOSHIBA, UFS_ANY_MODEL,
-		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
-	UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9C8KBADG",
-		UFS_DEVICE_QUIRK_PA_TACTIVATE),
-	UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9D8KBADG",
-		UFS_DEVICE_QUIRK_PA_TACTIVATE),
-	UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
-
-	END_FIX
-};
 #endif /* UFS_QUIRKS_H_ */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/ufs/unipro.h linux-libre-4.9.52-gnu/drivers/scsi/ufs/unipro.h
--- linux-libre-4.9-gnu/drivers/scsi/ufs/unipro.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/ufs/unipro.h	2017-09-27 08:40:05.000000000 -0400
@@ -123,6 +123,7 @@
 #define PA_MAXRXHSGEAR		0x1587
 #define PA_RXHSUNTERMCAP	0x15A5
 #define PA_RXLSTERMCAP		0x15A6
+#define PA_GRANULARITY		0x15AA
 #define PA_PACPREQTIMEOUT	0x1590
 #define PA_PACPREQEOBTIMEOUT	0x1591
 #define PA_HIBERN8TIME		0x15A7
@@ -158,6 +159,9 @@
 #define VS_DEBUGOMC		0xD09E
 #define VS_POWERSTATE		0xD083
 
+#define PA_GRANULARITY_MIN_VAL	1
+#define PA_GRANULARITY_MAX_VAL	6
+
 /* PHY Adapter Protocol Constants */
 #define PA_MAXDATALANES	4
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/scsi/virtio_scsi.c linux-libre-4.9.52-gnu/drivers/scsi/virtio_scsi.c
--- linux-libre-4.9-gnu/drivers/scsi/virtio_scsi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/scsi/virtio_scsi.c	2017-09-27 08:40:05.000000000 -0400
@@ -534,7 +534,9 @@ static int virtscsi_queuecommand(struct
 {
 	struct Scsi_Host *shost = virtio_scsi_host(vscsi->vdev);
 	struct virtio_scsi_cmd *cmd = scsi_cmd_priv(sc);
+	unsigned long flags;
 	int req_size;
+	int ret;
 
 	BUG_ON(scsi_sg_count(sc) > shost->sg_tablesize);
 
@@ -562,8 +564,15 @@ static int virtscsi_queuecommand(struct
 		req_size = sizeof(cmd->req.cmd);
 	}
 
-	if (virtscsi_kick_cmd(req_vq, cmd, req_size, sizeof(cmd->resp.cmd)) != 0)
+	ret = virtscsi_kick_cmd(req_vq, cmd, req_size, sizeof(cmd->resp.cmd));
+	if (ret == -EIO) {
+		cmd->resp.cmd.response = VIRTIO_SCSI_S_BAD_TARGET;
+		spin_lock_irqsave(&req_vq->vq_lock, flags);
+		virtscsi_complete_cmd(vscsi, cmd);
+		spin_unlock_irqrestore(&req_vq->vq_lock, flags);
+	} else if (ret != 0) {
 		return SCSI_MLQUEUE_HOST_BUSY;
+	}
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/soc/ti/wkup_m3_ipc.c linux-libre-4.9.52-gnu/drivers/soc/ti/wkup_m3_ipc.c
--- linux-libre-4.9-gnu/drivers/soc/ti/wkup_m3_ipc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/soc/ti/wkup_m3_ipc.c	2017-09-27 08:40:05.000000000 -0400
@@ -459,6 +459,7 @@ static int wkup_m3_ipc_probe(struct plat
 
 	if (IS_ERR(task)) {
 		dev_err(dev, "can't create rproc_boot thread\n");
+		ret = PTR_ERR(task);
 		goto err_put_rproc;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spi/spi-axi-spi-engine.c linux-libre-4.9.52-gnu/drivers/spi/spi-axi-spi-engine.c
--- linux-libre-4.9-gnu/drivers/spi/spi-axi-spi-engine.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spi/spi-axi-spi-engine.c	2017-09-27 08:40:05.000000000 -0400
@@ -494,7 +494,8 @@ static int spi_engine_probe(struct platf
 			SPI_ENGINE_VERSION_MAJOR(version),
 			SPI_ENGINE_VERSION_MINOR(version),
 			SPI_ENGINE_VERSION_PATCH(version));
-		return -ENODEV;
+		ret = -ENODEV;
+		goto err_put_master;
 	}
 
 	spi_engine->clk = devm_clk_get(&pdev->dev, "s_axi_aclk");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spi/spi.c linux-libre-4.9.52-gnu/drivers/spi/spi.c
--- linux-libre-4.9-gnu/drivers/spi/spi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spi/spi.c	2017-09-27 08:40:05.000000000 -0400
@@ -621,8 +621,10 @@ void spi_unregister_device(struct spi_de
 	if (!spi)
 		return;
 
-	if (spi->dev.of_node)
+	if (spi->dev.of_node) {
 		of_node_clear_flag(spi->dev.of_node, OF_POPULATED);
+		of_node_put(spi->dev.of_node);
+	}
 	if (ACPI_COMPANION(&spi->dev))
 		acpi_device_clear_enumerated(ACPI_COMPANION(&spi->dev));
 	device_unregister(&spi->dev);
@@ -797,12 +799,12 @@ static int __spi_map_msg(struct spi_mast
 	if (master->dma_tx)
 		tx_dev = master->dma_tx->device->dev;
 	else
-		tx_dev = &master->dev;
+		tx_dev = master->dev.parent;
 
 	if (master->dma_rx)
 		rx_dev = master->dma_rx->device->dev;
 	else
-		rx_dev = &master->dev;
+		rx_dev = master->dev.parent;
 
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 		if (!master->can_dma(master, msg->spi, xfer))
@@ -844,12 +846,12 @@ static int __spi_unmap_msg(struct spi_ma
 	if (master->dma_tx)
 		tx_dev = master->dma_tx->device->dev;
 	else
-		tx_dev = &master->dev;
+		tx_dev = master->dev.parent;
 
 	if (master->dma_rx)
 		rx_dev = master->dma_rx->device->dev;
 	else
-		rx_dev = &master->dev;
+		rx_dev = master->dev.parent;
 
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 		if (!master->can_dma(master, msg->spi, xfer))
@@ -1004,7 +1006,7 @@ static int spi_transfer_one_message(stru
 				ret = 0;
 				ms = 8LL * 1000LL * xfer->len;
 				do_div(ms, xfer->speed_hz);
-				ms += ms + 100; /* some tolerance */
+				ms += ms + 200; /* some tolerance */
 
 				if (ms > UINT_MAX)
 					ms = UINT_MAX;
@@ -1589,11 +1591,13 @@ of_register_spi_device(struct spi_master
 	if (rc) {
 		dev_err(&master->dev, "spi_device register error %s\n",
 			nc->full_name);
-		goto err_out;
+		goto err_of_node_put;
 	}
 
 	return spi;
 
+err_of_node_put:
+	of_node_put(nc);
 err_out:
 	spi_dev_put(spi);
 	return ERR_PTR(rc);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spi/spi-davinci.c linux-libre-4.9.52-gnu/drivers/spi/spi-davinci.c
--- linux-libre-4.9-gnu/drivers/spi/spi-davinci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spi/spi-davinci.c	2017-09-27 08:40:05.000000000 -0400
@@ -646,7 +646,7 @@ static int davinci_spi_bufs(struct spi_d
 			buf = t->rx_buf;
 		t->rx_dma = dma_map_single(&spi->dev, buf,
 				t->len, DMA_FROM_DEVICE);
-		if (!t->rx_dma) {
+		if (dma_mapping_error(&spi->dev, !t->rx_dma)) {
 			ret = -EFAULT;
 			goto err_rx_map;
 		}
@@ -660,7 +660,7 @@ static int davinci_spi_bufs(struct spi_d
 			buf = (void *)t->tx_buf;
 		t->tx_dma = dma_map_single(&spi->dev, buf,
 				t->len, DMA_TO_DEVICE);
-		if (!t->tx_dma) {
+		if (dma_mapping_error(&spi->dev, t->tx_dma)) {
 			ret = -EFAULT;
 			goto err_tx_map;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spi/spi-dw.c linux-libre-4.9.52-gnu/drivers/spi/spi-dw.c
--- linux-libre-4.9-gnu/drivers/spi/spi-dw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spi/spi-dw.c	2017-09-27 08:40:05.000000000 -0400
@@ -107,7 +107,10 @@ static const struct file_operations dw_s
 
 static int dw_spi_debugfs_init(struct dw_spi *dws)
 {
-	dws->debugfs = debugfs_create_dir("dw_spi", NULL);
+	char name[128];
+
+	snprintf(name, 128, "dw_spi-%s", dev_name(&dws->master->dev));
+	dws->debugfs = debugfs_create_dir(name, NULL);
 	if (!dws->debugfs)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spi/spi-orion.c linux-libre-4.9.52-gnu/drivers/spi/spi-orion.c
--- linux-libre-4.9-gnu/drivers/spi/spi-orion.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spi/spi-orion.c	2017-09-27 08:40:05.000000000 -0400
@@ -138,37 +138,62 @@ static int orion_spi_baudrate_set(struct
 	tclk_hz = clk_get_rate(orion_spi->clk);
 
 	if (devdata->typ == ARMADA_SPI) {
-		unsigned int clk, spr, sppr, sppr2, err;
-		unsigned int best_spr, best_sppr, best_err;
+		/*
+		 * Given the core_clk (tclk_hz) and the target rate (speed) we
+		 * determine the best values for SPR (in [0 .. 15]) and SPPR (in
+		 * [0..7]) such that
+		 *
+		 * 	core_clk / (SPR * 2 ** SPPR)
+		 *
+		 * is as big as possible but not bigger than speed.
+		 */
 
-		best_err = speed;
-		best_spr = 0;
-		best_sppr = 0;
+		/* best integer divider: */
+		unsigned divider = DIV_ROUND_UP(tclk_hz, speed);
+		unsigned spr, sppr;
 
-		/* Iterate over the valid range looking for best fit */
-		for (sppr = 0; sppr < 8; sppr++) {
-			sppr2 = 0x1 << sppr;
+		if (divider < 16) {
+			/* This is the easy case, divider is less than 16 */
+			spr = divider;
+			sppr = 0;
 
-			spr = tclk_hz / sppr2;
-			spr = DIV_ROUND_UP(spr, speed);
-			if ((spr == 0) || (spr > 15))
-				continue;
+		} else {
+			unsigned two_pow_sppr;
+			/*
+			 * Find the highest bit set in divider. This and the
+			 * three next bits define SPR (apart from rounding).
+			 * SPPR is then the number of zero bits that must be
+			 * appended:
+			 */
+			sppr = fls(divider) - 4;
 
-			clk = tclk_hz / (spr * sppr2);
-			err = speed - clk;
+			/*
+			 * As SPR only has 4 bits, we have to round divider up
+			 * to the next multiple of 2 ** sppr.
+			 */
+			two_pow_sppr = 1 << sppr;
+			divider = (divider + two_pow_sppr - 1) & -two_pow_sppr;
 
-			if (err < best_err) {
-				best_spr = spr;
-				best_sppr = sppr;
-				best_err = err;
-			}
-		}
+			/*
+			 * recalculate sppr as rounding up divider might have
+			 * increased it enough to change the position of the
+			 * highest set bit. In this case the bit that now
+			 * doesn't make it into SPR is 0, so there is no need to
+			 * round again.
+			 */
+			sppr = fls(divider) - 4;
+			spr = divider >> sppr;
 
-		if ((best_sppr == 0) && (best_spr == 0))
-			return -EINVAL;
+			/*
+			 * Now do range checking. SPR is constructed to have a
+			 * width of 4 bits, so this is fine for sure. So we
+			 * still need to check for sppr to fit into 3 bits:
+			 */
+			if (sppr > 7)
+				return -EINVAL;
+		}
 
-		prescale = ((best_sppr & 0x6) << 5) |
-			((best_sppr & 0x1) << 4) | best_spr;
+		prescale = ((sppr & 0x6) << 5) | ((sppr & 0x1) << 4) | spr;
 	} else {
 		/*
 		 * the supported rates are: 4,6,8...30
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spi/spi-pxa2xx.c linux-libre-4.9.52-gnu/drivers/spi/spi-pxa2xx.c
--- linux-libre-4.9-gnu/drivers/spi/spi-pxa2xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spi/spi-pxa2xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1690,6 +1690,7 @@ static int pxa2xx_spi_probe(struct platf
 		pxa2xx_spi_write(drv_data, SSCR1, tmp);
 		tmp = SSCR0_SCR(2) | SSCR0_Motorola | SSCR0_DataSize(8);
 		pxa2xx_spi_write(drv_data, SSCR0, tmp);
+		break;
 	default:
 		tmp = SSCR1_RxTresh(RX_THRESH_DFLT) |
 		      SSCR1_TxTresh(TX_THRESH_DFLT);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spi/spi-s3c64xx.c linux-libre-4.9.52-gnu/drivers/spi/spi-s3c64xx.c
--- linux-libre-4.9-gnu/drivers/spi/spi-s3c64xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spi/spi-s3c64xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1003,7 +1003,7 @@ static struct s3c64xx_spi_info *s3c64xx_
 		sci->num_cs = temp;
 	}
 
-	sci->no_cs = of_property_read_bool(dev->of_node, "broken-cs");
+	sci->no_cs = of_property_read_bool(dev->of_node, "no-cs-readback");
 
 	return sci;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/spmi/spmi.c linux-libre-4.9.52-gnu/drivers/spmi/spmi.c
--- linux-libre-4.9-gnu/drivers/spmi/spmi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/spmi/spmi.c	2017-09-27 08:40:05.000000000 -0400
@@ -365,11 +365,23 @@ static int spmi_drv_remove(struct device
 	return 0;
 }
 
+static int spmi_drv_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	int ret;
+
+	ret = of_device_uevent_modalias(dev, env);
+	if (ret != -ENODEV)
+		return ret;
+
+	return 0;
+}
+
 static struct bus_type spmi_bus_type = {
 	.name		= "spmi",
 	.match		= spmi_device_match,
 	.probe		= spmi_drv_probe,
 	.remove		= spmi_drv_remove,
+	.uevent		= spmi_drv_uevent,
 };
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/ssb/pci.c linux-libre-4.9.52-gnu/drivers/ssb/pci.c
--- linux-libre-4.9-gnu/drivers/ssb/pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/ssb/pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -909,6 +909,7 @@ static int ssb_pci_sprom_get(struct ssb_
 			if (err) {
 				ssb_warn("WARNING: Using fallback SPROM failed (err %d)\n",
 					 err);
+				goto out_free;
 			} else {
 				ssb_dbg("Using SPROM revision %d provided by platform\n",
 					sprom->revision);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/android/ashmem.c linux-libre-4.9.52-gnu/drivers/staging/android/ashmem.c
--- linux-libre-4.9-gnu/drivers/staging/android/ashmem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/android/ashmem.c	2017-09-27 08:40:05.000000000 -0400
@@ -405,6 +405,7 @@ static int ashmem_mmap(struct file *file
 			ret = PTR_ERR(vmfile);
 			goto out;
 		}
+		vmfile->f_mode |= FMODE_LSEEK;
 		asma->file = vmfile;
 	}
 	get_file(asma->file);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/comedi/comedi_fops.c linux-libre-4.9.52-gnu/drivers/staging/comedi/comedi_fops.c
--- linux-libre-4.9-gnu/drivers/staging/comedi/comedi_fops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/comedi/comedi_fops.c	2017-09-27 08:40:05.000000000 -0400
@@ -2385,6 +2385,7 @@ static ssize_t comedi_write(struct file
 			continue;
 		}
 
+		set_current_state(TASK_RUNNING);
 		wp = async->buf_write_ptr;
 		n1 = min(n, async->prealloc_bufsz - wp);
 		n2 = n - n1;
@@ -2517,6 +2518,8 @@ static ssize_t comedi_read(struct file *
 			}
 			continue;
 		}
+
+		set_current_state(TASK_RUNNING);
 		rp = async->buf_read_ptr;
 		n1 = min(n, async->prealloc_bufsz - rp);
 		n2 = n - n1;
@@ -2898,9 +2901,6 @@ static int __init comedi_init(void)
 
 	comedi_class->dev_groups = comedi_dev_groups;
 
-	/* XXX requires /proc interface */
-	comedi_proc_init();
-
 	/* create devices files for legacy/manual use */
 	for (i = 0; i < comedi_num_legacy_minors; i++) {
 		struct comedi_device *dev;
@@ -2908,6 +2908,7 @@ static int __init comedi_init(void)
 		dev = comedi_alloc_board_minor(NULL);
 		if (IS_ERR(dev)) {
 			comedi_cleanup_board_minors();
+			class_destroy(comedi_class);
 			cdev_del(&comedi_cdev);
 			unregister_chrdev_region(MKDEV(COMEDI_MAJOR, 0),
 						 COMEDI_NUM_MINORS);
@@ -2917,6 +2918,9 @@ static int __init comedi_init(void)
 		mutex_unlock(&dev->mutex);
 	}
 
+	/* XXX requires /proc interface */
+	comedi_proc_init();
+
 	return 0;
 }
 module_init(comedi_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/comedi/drivers/jr3_pci.c linux-libre-4.9.52-gnu/drivers/staging/comedi/drivers/jr3_pci.c
--- linux-libre-4.9-gnu/drivers/staging/comedi/drivers/jr3_pci.c	2016-12-11 17:58:36.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/comedi/drivers/jr3_pci.c	2017-09-27 15:12:42.000000000 -0400
@@ -606,7 +606,7 @@ static void jr3_pci_poll_dev(unsigned lo
 		s = &dev->subdevices[i];
 		spriv = s->private;
 
-		if (now > spriv->next_time_min) {
+		if (time_after_eq(now, spriv->next_time_min)) {
 			struct jr3_pci_poll_delay sub_delay;
 
 			sub_delay = jr3_pci_poll_subdevice(s);
@@ -722,11 +722,12 @@ static int jr3_pci_auto_attach(struct co
 		s->insn_read	= jr3_pci_ai_insn_read;
 
 		spriv = jr3_pci_alloc_spriv(dev, s);
-		if (spriv) {
-			/* Channel specific range and maxdata */
-			s->range_table_list	= spriv->range_table_list;
-			s->maxdata_list		= spriv->maxdata_list;
-		}
+		if (!spriv)
+			return -ENOMEM;
+
+		/* Channel specific range and maxdata */
+		s->range_table_list	= spriv->range_table_list;
+		s->maxdata_list		= spriv->maxdata_list;
 	}
 
 	/* Reset DSP card */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/comedi/drivers/ni_mio_common.c linux-libre-4.9.52-gnu/drivers/staging/comedi/drivers/ni_mio_common.c
--- linux-libre-4.9-gnu/drivers/staging/comedi/drivers/ni_mio_common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/comedi/drivers/ni_mio_common.c	2017-09-27 08:40:05.000000000 -0400
@@ -1832,7 +1832,7 @@ static int ni_ai_insn_read(struct comedi
 			   unsigned int *data)
 {
 	struct ni_private *devpriv = dev->private;
-	unsigned int mask = (s->maxdata + 1) >> 1;
+	unsigned int mask = s->maxdata;
 	int i, n;
 	unsigned int signbits;
 	unsigned int d;
@@ -1875,7 +1875,7 @@ static int ni_ai_insn_read(struct comedi
 				return -ETIME;
 			}
 			d += signbits;
-			data[n] = d;
+			data[n] = d & 0xffff;
 		}
 	} else if (devpriv->is_6143) {
 		for (n = 0; n < insn->n; n++) {
@@ -1924,9 +1924,8 @@ static int ni_ai_insn_read(struct comedi
 				data[n] = dl;
 			} else {
 				d = ni_readw(dev, NI_E_AI_FIFO_DATA_REG);
-				/* subtle: needs to be short addition */
 				d += signbits;
-				data[n] = d;
+				data[n] = d & 0xffff;
 			}
 		}
 	}
@@ -3079,8 +3078,7 @@ static void ni_ao_cmd_set_update(struct
 		/* following line: 2-1 per STC */
 		ni_stc_writel(dev, 1, NISTC_AO_UI_LOADA_REG);
 		ni_stc_writew(dev, NISTC_AO_CMD1_UI_LOAD, NISTC_AO_CMD1_REG);
-		/* following line: N-1 per STC */
-		ni_stc_writel(dev, trigvar - 1, NISTC_AO_UI_LOADA_REG);
+		ni_stc_writel(dev, trigvar, NISTC_AO_UI_LOADA_REG);
 	} else { /* TRIG_EXT */
 		/* FIXME:  assert scan_begin_arg != 0, ret failure otherwise */
 		devpriv->ao_cmd2  |= NISTC_AO_CMD2_BC_GATE_ENA;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/emxx_udc/emxx_udc.c linux-libre-4.9.52-gnu/drivers/staging/emxx_udc/emxx_udc.c
--- linux-libre-4.9-gnu/drivers/staging/emxx_udc/emxx_udc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/emxx_udc/emxx_udc.c	2017-09-27 08:40:05.000000000 -0400
@@ -3160,7 +3160,7 @@ static const struct {
 };
 
 /*-------------------------------------------------------------------------*/
-static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
+static void nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
 {
 	int	i;
 
@@ -3191,7 +3191,7 @@ static void __init nbu2ss_drv_ep_init(st
 
 /*-------------------------------------------------------------------------*/
 /* platform_driver */
-static int __init nbu2ss_drv_contest_init(
+static int nbu2ss_drv_contest_init(
 	struct platform_device *pdev,
 	struct nbu2ss_udc *udc)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/gdm724x/gdm_mux.c linux-libre-4.9.52-gnu/drivers/staging/gdm724x/gdm_mux.c
--- linux-libre-4.9-gnu/drivers/staging/gdm724x/gdm_mux.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/gdm724x/gdm_mux.c	2017-09-27 08:40:05.000000000 -0400
@@ -664,9 +664,8 @@ static int __init gdm_usb_mux_init(void)
 
 static void __exit gdm_usb_mux_exit(void)
 {
-	unregister_lte_tty_driver();
-
 	usb_deregister(&gdm_mux_driver);
+	unregister_lte_tty_driver();
 }
 
 module_init(gdm_usb_mux_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/greybus/loopback.c linux-libre-4.9.52-gnu/drivers/staging/greybus/loopback.c
--- linux-libre-4.9-gnu/drivers/staging/greybus/loopback.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/greybus/loopback.c	2017-09-27 08:40:05.000000000 -0400
@@ -1051,8 +1051,13 @@ static int gb_loopback_fn(void *data)
 			gb_loopback_calculate_stats(gb, !!error);
 		}
 		gb->send_count++;
-		if (us_wait)
-			udelay(us_wait);
+
+		if (us_wait) {
+			if (us_wait < 20000)
+				usleep_range(us_wait, us_wait + 100);
+			else
+				msleep(us_wait / 1000);
+		}
 	}
 
 	gb_pm_runtime_put_autosuspend(bundle);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/greybus/timesync_platform.c linux-libre-4.9.52-gnu/drivers/staging/greybus/timesync_platform.c
--- linux-libre-4.9-gnu/drivers/staging/greybus/timesync_platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/greybus/timesync_platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -45,12 +45,18 @@ u32 gb_timesync_platform_get_clock_rate(
 
 int gb_timesync_platform_lock_bus(struct gb_timesync_svc *pdata)
 {
+	if (!arche_platform_change_state_cb)
+		return 0;
+
 	return arche_platform_change_state_cb(ARCHE_PLATFORM_STATE_TIME_SYNC,
 					      pdata);
 }
 
 void gb_timesync_platform_unlock_bus(void)
 {
+	if (!arche_platform_change_state_cb)
+		return;
+
 	arche_platform_change_state_cb(ARCHE_PLATFORM_STATE_ACTIVE, NULL);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/iio/adc/ad7606_core.c linux-libre-4.9.52-gnu/drivers/staging/iio/adc/ad7606_core.c
--- linux-libre-4.9-gnu/drivers/staging/iio/adc/ad7606_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/iio/adc/ad7606_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -189,7 +189,7 @@ static ssize_t ad7606_store_oversampling
 	mutex_lock(&indio_dev->mlock);
 	gpio_set_value(st->pdata->gpio_os0, (ret >> 0) & 1);
 	gpio_set_value(st->pdata->gpio_os1, (ret >> 1) & 1);
-	gpio_set_value(st->pdata->gpio_os1, (ret >> 2) & 1);
+	gpio_set_value(st->pdata->gpio_os2, (ret >> 2) & 1);
 	st->oversampling = lval;
 	mutex_unlock(&indio_dev->mlock);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/iio/light/tsl2x7x_core.c linux-libre-4.9.52-gnu/drivers/staging/iio/light/tsl2x7x_core.c
--- linux-libre-4.9-gnu/drivers/staging/iio/light/tsl2x7x_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/iio/light/tsl2x7x_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -854,7 +854,7 @@ void tsl2x7x_prox_calculate(int *data, i
 		tmp = data[i] - statP->mean;
 		sample_sum += tmp * tmp;
 	}
-	statP->stddev = int_sqrt((long)sample_sum) / length;
+	statP->stddev = int_sqrt((long)sample_sum / length);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/iio/resolver/ad2s1210.c linux-libre-4.9.52-gnu/drivers/staging/iio/resolver/ad2s1210.c
--- linux-libre-4.9-gnu/drivers/staging/iio/resolver/ad2s1210.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/iio/resolver/ad2s1210.c	2017-09-27 08:40:05.000000000 -0400
@@ -472,7 +472,7 @@ static int ad2s1210_read_raw(struct iio_
 			     long m)
 {
 	struct ad2s1210_state *st = iio_priv(indio_dev);
-	bool negative;
+	u16 negative;
 	int ret = 0;
 	u16 pos;
 	s16 vel;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c linux-libre-4.9.52-gnu/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
--- linux-libre-4.9-gnu/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c	2017-09-27 08:40:05.000000000 -0400
@@ -1650,8 +1650,13 @@ kiblnd_send(lnet_ni_t *ni, void *private
 	ibmsg = tx->tx_msg;
 	ibmsg->ibm_u.immediate.ibim_hdr = *hdr;
 
-	copy_from_iter(&ibmsg->ibm_u.immediate.ibim_payload, IBLND_MSG_SIZE,
-		       &from);
+	rc = copy_from_iter(&ibmsg->ibm_u.immediate.ibim_payload, payload_nob,
+			    &from);
+	if (rc != payload_nob) {
+		kiblnd_pool_free_node(&tx->tx_pool->tpo_pool, &tx->tx_list);
+		return -EFAULT;
+	}
+
 	nob = offsetof(struct kib_immediate_msg, ibim_payload[payload_nob]);
 	kiblnd_init_tx_msg(ni, tx, IBLND_MSG_IMMEDIATE, nob);
 
@@ -1751,8 +1756,14 @@ kiblnd_recv(lnet_ni_t *ni, void *private
 			break;
 		}
 
-		copy_to_iter(&rxmsg->ibm_u.immediate.ibim_payload,
-			     IBLND_MSG_SIZE, to);
+		rc = copy_to_iter(&rxmsg->ibm_u.immediate.ibim_payload, rlen,
+				  to);
+		if (rc != rlen) {
+			rc = -EFAULT;
+			break;
+		}
+
+		rc = 0;
 		lnet_finalize(ni, lntmsg, 0);
 		break;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/lustre/lnet/selftest/rpc.c linux-libre-4.9.52-gnu/drivers/staging/lustre/lnet/selftest/rpc.c
--- linux-libre-4.9-gnu/drivers/staging/lustre/lnet/selftest/rpc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/lustre/lnet/selftest/rpc.c	2017-09-27 08:40:05.000000000 -0400
@@ -252,7 +252,7 @@ srpc_service_init(struct srpc_service *s
 	svc->sv_shuttingdown = 0;
 
 	svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(),
-					    sizeof(*svc->sv_cpt_data));
+					    sizeof(**svc->sv_cpt_data));
 	if (!svc->sv_cpt_data)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
--- linux-libre-4.9-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c	2017-09-27 08:40:05.000000000 -0400
@@ -356,10 +356,10 @@ static int ldlm_pool_recalc(struct ldlm_
 	u32 recalc_interval_sec;
 	int count;
 
-	recalc_interval_sec = ktime_get_seconds() - pl->pl_recalc_time;
+	recalc_interval_sec = ktime_get_real_seconds() - pl->pl_recalc_time;
 	if (recalc_interval_sec > 0) {
 		spin_lock(&pl->pl_lock);
-		recalc_interval_sec = ktime_get_seconds() - pl->pl_recalc_time;
+		recalc_interval_sec = ktime_get_real_seconds() - pl->pl_recalc_time;
 
 		if (recalc_interval_sec > 0) {
 			/*
@@ -382,7 +382,7 @@ static int ldlm_pool_recalc(struct ldlm_
 				    count);
 	}
 
-	recalc_interval_sec = pl->pl_recalc_time - ktime_get_seconds() +
+	recalc_interval_sec = pl->pl_recalc_time - ktime_get_real_seconds() +
 			      pl->pl_recalc_period;
 	if (recalc_interval_sec <= 0) {
 		/* DEBUG: should be re-removed after LU-4536 is fixed */
@@ -657,7 +657,7 @@ int ldlm_pool_init(struct ldlm_pool *pl,
 
 	spin_lock_init(&pl->pl_lock);
 	atomic_set(&pl->pl_granted, 0);
-	pl->pl_recalc_time = ktime_get_seconds();
+	pl->pl_recalc_time = ktime_get_real_seconds();
 	atomic_set(&pl->pl_lock_volume_factor, 1);
 
 	atomic_set(&pl->pl_grant_rate, 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/lustre/lustre/llite/lproc_llite.c linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/llite/lproc_llite.c
--- linux-libre-4.9-gnu/drivers/staging/lustre/lustre/llite/lproc_llite.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/llite/lproc_llite.c	2017-09-27 08:40:05.000000000 -0400
@@ -924,27 +924,29 @@ static ssize_t ll_unstable_stats_seq_wri
 }
 LPROC_SEQ_FOPS(ll_unstable_stats);
 
-static ssize_t root_squash_show(struct kobject *kobj, struct attribute *attr,
-				char *buf)
+static int ll_root_squash_seq_show(struct seq_file *m, void *v)
 {
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
+	struct super_block *sb = m->private;
+	struct ll_sb_info *sbi = ll_s2sbi(sb);
 	struct root_squash_info *squash = &sbi->ll_squash;
 
-	return sprintf(buf, "%u:%u\n", squash->rsi_uid, squash->rsi_gid);
+	seq_printf(m, "%u:%u\n", squash->rsi_uid, squash->rsi_gid);
+	return 0;
 }
 
-static ssize_t root_squash_store(struct kobject *kobj, struct attribute *attr,
-				 const char *buffer, size_t count)
+static ssize_t ll_root_squash_seq_write(struct file *file,
+					const char __user *buffer,
+					size_t count, loff_t *off)
 {
-	struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
-					      ll_kobj);
+	struct seq_file *m = file->private_data;
+	struct super_block *sb = m->private;
+	struct ll_sb_info *sbi = ll_s2sbi(sb);
 	struct root_squash_info *squash = &sbi->ll_squash;
 
 	return lprocfs_wr_root_squash(buffer, count, squash,
-				      ll_get_fsname(sbi->ll_sb, NULL, 0));
+				      ll_get_fsname(sb, NULL, 0));
 }
-LUSTRE_RW_ATTR(root_squash);
+LPROC_SEQ_FOPS(ll_root_squash);
 
 static int ll_nosquash_nids_seq_show(struct seq_file *m, void *v)
 {
@@ -997,6 +999,8 @@ static struct lprocfs_vars lprocfs_llite
 	{ "statahead_stats",  &ll_statahead_stats_fops, NULL, 0 },
 	{ "unstable_stats",   &ll_unstable_stats_fops, NULL },
 	{ "sbi_flags",	      &ll_sbi_flags_fops, NULL, 0 },
+	{ .name =       "root_squash",
+	  .fops =       &ll_root_squash_fops			},
 	{ .name =		"nosquash_nids",
 	  .fops =		&ll_nosquash_nids_fops		},
 	{ NULL }
@@ -1027,7 +1031,6 @@ static struct attribute *llite_attrs[] =
 	&lustre_attr_max_easize.attr,
 	&lustre_attr_default_easize.attr,
 	&lustre_attr_xattr_cache.attr,
-	&lustre_attr_root_squash.attr,
 	NULL,
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c
--- linux-libre-4.9-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/lov/lov_pack.c	2017-09-27 08:40:05.000000000 -0400
@@ -387,18 +387,10 @@ int lov_getstripe(struct lov_object *obj
 	struct lov_mds_md *lmmk = NULL;
 	int rc, lmmk_size, lmm_size;
 	int lum_size;
-	mm_segment_t seg;
 
 	if (!lsm)
 		return -ENODATA;
 
-	/*
-	 * "Switch to kernel segment" to allow copying from kernel space by
-	 * copy_{to,from}_user().
-	 */
-	seg = get_fs();
-	set_fs(KERNEL_DS);
-
 	/* we only need the header part from user space to get lmm_magic and
 	 * lmm_stripe_count, (the header part is common to v1 and v3)
 	 */
@@ -478,6 +470,5 @@ int lov_getstripe(struct lov_object *obj
 out_free:
 	kfree(lmmk);
 out:
-	set_fs(seg);
 	return rc;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/lustre/lustre/osc/osc_page.c linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/osc/osc_page.c
--- linux-libre-4.9-gnu/drivers/staging/lustre/lustre/osc/osc_page.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/lustre/lustre/osc/osc_page.c	2017-09-27 08:40:05.000000000 -0400
@@ -542,7 +542,6 @@ long osc_lru_shrink(const struct lu_env
 	struct cl_object *clobj = NULL;
 	struct cl_page **pvec;
 	struct osc_page *opg;
-	struct osc_page *temp;
 	int maxscan = 0;
 	long count = 0;
 	int index = 0;
@@ -569,13 +568,15 @@ long osc_lru_shrink(const struct lu_env
 
 	spin_lock(&cli->cl_lru_list_lock);
 	maxscan = min(target << 1, atomic_long_read(&cli->cl_lru_in_list));
-	list_for_each_entry_safe(opg, temp, &cli->cl_lru_list, ops_lru) {
+	while (!list_empty(&cli->cl_lru_list)) {
 		struct cl_page *page;
 		bool will_free = false;
 
 		if (--maxscan < 0)
 			break;
 
+		opg = list_entry(cli->cl_lru_list.next, struct osc_page,
+				 ops_lru);
 		page = opg->ops_cl.cpl_page;
 		if (lru_page_busy(cli, page)) {
 			list_move_tail(&opg->ops_lru, &cli->cl_lru_list);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/media/cec/cec-adap.c linux-libre-4.9.52-gnu/drivers/staging/media/cec/cec-adap.c
--- linux-libre-4.9-gnu/drivers/staging/media/cec/cec-adap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/media/cec/cec-adap.c	2017-09-27 08:40:05.000000000 -0400
@@ -1017,7 +1017,7 @@ static int cec_config_thread_func(void *
 		las->log_addr[i] = CEC_LOG_ADDR_INVALID;
 		if (last_la == CEC_LOG_ADDR_INVALID ||
 		    last_la == CEC_LOG_ADDR_UNREGISTERED ||
-		    !(last_la & type2mask[type]))
+		    !((1 << last_la) & type2mask[type]))
 			last_la = la_list[0];
 
 		err = cec_config_log_addr(adap, i, last_la);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c linux-libre-4.9.52-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c
--- linux-libre-4.9-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/media/davinci_vpfe/vpfe_video.c	2017-09-27 08:40:05.000000000 -0400
@@ -1362,7 +1362,7 @@ static int vpfe_reqbufs(struct file *fil
 	ret = vb2_queue_init(q);
 	if (ret) {
 		v4l2_err(&vpfe_dev->v4l2_dev, "vb2_queue_init() failed\n");
-		return ret;
+		goto unlock_out;
 	}
 
 	fh->io_allowed = 1;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/media/s5p-cec/s5p_cec.c linux-libre-4.9.52-gnu/drivers/staging/media/s5p-cec/s5p_cec.c
--- linux-libre-4.9-gnu/drivers/staging/media/s5p-cec/s5p_cec.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/media/s5p-cec/s5p_cec.c	2017-09-27 08:40:05.000000000 -0400
@@ -231,7 +231,7 @@ static int s5p_cec_remove(struct platfor
 	return 0;
 }
 
-static int s5p_cec_runtime_suspend(struct device *dev)
+static int __maybe_unused s5p_cec_runtime_suspend(struct device *dev)
 {
 	struct s5p_cec_dev *cec = dev_get_drvdata(dev);
 
@@ -239,7 +239,7 @@ static int s5p_cec_runtime_suspend(struc
 	return 0;
 }
 
-static int s5p_cec_runtime_resume(struct device *dev)
+static int __maybe_unused s5p_cec_runtime_resume(struct device *dev)
 {
 	struct s5p_cec_dev *cec = dev_get_drvdata(dev);
 	int ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/octeon/ethernet.c linux-libre-4.9.52-gnu/drivers/staging/octeon/ethernet.c
--- linux-libre-4.9-gnu/drivers/staging/octeon/ethernet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/octeon/ethernet.c	2017-09-27 08:40:05.000000000 -0400
@@ -776,6 +776,7 @@ static int cvm_oct_probe(struct platform
 			/* Initialize the device private structure. */
 			struct octeon_ethernet *priv = netdev_priv(dev);
 
+			SET_NETDEV_DEV(dev, &pdev->dev);
 			dev->netdev_ops = &cvm_oct_pow_netdev_ops;
 			priv->imode = CVMX_HELPER_INTERFACE_MODE_DISABLED;
 			priv->port = CVMX_PIP_NUM_INPUT_PORTS;
@@ -820,6 +821,7 @@ static int cvm_oct_probe(struct platform
 			}
 
 			/* Initialize the device private structure. */
+			SET_NETDEV_DEV(dev, &pdev->dev);
 			priv = netdev_priv(dev);
 			priv->netdev = dev;
 			priv->of_node = cvm_oct_node_for_port(pip, interface,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c linux-libre-4.9.52-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c
--- linux-libre-4.9-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c	2017-09-27 08:40:05.000000000 -0400
@@ -890,7 +890,7 @@ int rtw_check_beacon_data(struct adapter
 		return _FAIL;
 
 
-	if (len > MAX_IE_SZ)
+	if (len < 0 || len > MAX_IE_SZ)
 		return _FAIL;
 
 	pbss_network->IELength = len;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c linux-libre-4.9.52-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c
--- linux-libre-4.9-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/rtl8188eu/core/rtw_recv.c	2017-09-27 08:40:05.000000000 -0400
@@ -1383,6 +1383,9 @@ static int wlanhdr_to_ethhdr(struct recv
 		ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr) + (bsnaphdr ? 2 : 0)));
 	}
 
+	if (!ptr)
+		return _FAIL;
+
 	memcpy(ptr, pattrib->dst, ETH_ALEN);
 	memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c linux-libre-4.9.52-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c
--- linux-libre-4.9-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/rtl8188eu/os_dep/usb_intf.c	2017-09-27 08:40:05.000000000 -0400
@@ -43,7 +43,9 @@ static struct usb_device_id rtw_usb_id_t
 	{USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
 	{USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */
 	{USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */
+	{USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
 	{USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
+	{USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */
 	{}	/* Terminating entry */
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c linux-libre-4.9.52-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
--- linux-libre-4.9-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -97,8 +97,9 @@ void rtl92e_set_reg(struct net_device *d
 
 	switch (variable) {
 	case HW_VAR_BSSID:
-		rtl92e_writel(dev, BSSIDR, ((u32 *)(val))[0]);
-		rtl92e_writew(dev, BSSIDR+2, ((u16 *)(val+2))[0]);
+		/* BSSIDR 2 byte alignment */
+		rtl92e_writew(dev, BSSIDR, *(u16 *)val);
+		rtl92e_writel(dev, BSSIDR + 2, *(u32 *)(val + 2));
 		break;
 
 	case HW_VAR_MEDIA_STATUS:
@@ -626,7 +627,7 @@ void rtl92e_get_eeprom_size(struct net_d
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	RT_TRACE(COMP_INIT, "===========>%s()\n", __func__);
-	curCR = rtl92e_readl(dev, EPROM_CMD);
+	curCR = rtl92e_readw(dev, EPROM_CMD);
 	RT_TRACE(COMP_INIT, "read from Reg Cmd9346CR(%x):%x\n", EPROM_CMD,
 		 curCR);
 	priv->epromtype = (curCR & EPROM_CMD_9356SEL) ? EEPROM_93C56 :
@@ -963,8 +964,8 @@ static void _rtl92e_net_update(struct ne
 	rtl92e_config_rate(dev, &rate_config);
 	priv->dot11CurrentPreambleMode = PREAMBLE_AUTO;
 	 priv->basic_rate = rate_config &= 0x15f;
-	rtl92e_writel(dev, BSSIDR, ((u32 *)net->bssid)[0]);
-	rtl92e_writew(dev, BSSIDR+4, ((u16 *)net->bssid)[2]);
+	rtl92e_writew(dev, BSSIDR, *(u16 *)net->bssid);
+	rtl92e_writel(dev, BSSIDR + 2, *(u32 *)(net->bssid + 2));
 
 	if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
 		rtl92e_writew(dev, ATIMWND, 2);
@@ -1184,8 +1185,7 @@ void  rtl92e_fill_tx_desc(struct net_dev
 			  struct cb_desc *cb_desc, struct sk_buff *skb)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
-	dma_addr_t mapping = pci_map_single(priv->pdev, skb->data, skb->len,
-			 PCI_DMA_TODEVICE);
+	dma_addr_t mapping;
 	struct tx_fwinfo_8190pci *pTxFwInfo;
 
 	pTxFwInfo = (struct tx_fwinfo_8190pci *)skb->data;
@@ -1196,8 +1196,6 @@ void  rtl92e_fill_tx_desc(struct net_dev
 	pTxFwInfo->Short = _rtl92e_query_is_short(pTxFwInfo->TxHT,
 						  pTxFwInfo->TxRate, cb_desc);
 
-	if (pci_dma_mapping_error(priv->pdev, mapping))
-		netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
 	if (cb_desc->bAMPDUEnable) {
 		pTxFwInfo->AllowAggregation = 1;
 		pTxFwInfo->RxMF = cb_desc->ampdu_factor;
@@ -1232,6 +1230,14 @@ void  rtl92e_fill_tx_desc(struct net_dev
 	}
 
 	memset((u8 *)pdesc, 0, 12);
+
+	mapping = pci_map_single(priv->pdev, skb->data, skb->len,
+				 PCI_DMA_TODEVICE);
+	if (pci_dma_mapping_error(priv->pdev, mapping)) {
+		netdev_err(dev, "%s(): DMA Mapping error\n", __func__);
+		return;
+	}
+
 	pdesc->LINIP = 0;
 	pdesc->CmdInit = 1;
 	pdesc->Offset = sizeof(struct tx_fwinfo_8190pci) + 8;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/rtl8192e/rtl819x_TSProc.c linux-libre-4.9.52-gnu/drivers/staging/rtl8192e/rtl819x_TSProc.c
--- linux-libre-4.9-gnu/drivers/staging/rtl8192e/rtl819x_TSProc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/rtl8192e/rtl819x_TSProc.c	2017-09-27 08:40:05.000000000 -0400
@@ -306,11 +306,6 @@ static void MakeTSEntry(struct ts_common
 	pTsCommonInfo->TClasNum = TCLAS_Num;
 }
 
-static bool IsACValid(unsigned int tid)
-{
-	return tid < 7;
-}
-
 bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
 	   u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
 {
@@ -328,12 +323,6 @@ bool GetTs(struct rtllib_device *ieee, s
 	if (ieee->current_network.qos_data.supported == 0) {
 		UP = 0;
 	} else {
-		if (!IsACValid(TID)) {
-			netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
-				    __func__, TID);
-			return false;
-		}
-
 		switch (TID) {
 		case 0:
 		case 3:
@@ -351,6 +340,10 @@ bool GetTs(struct rtllib_device *ieee, s
 		case 7:
 			UP = 7;
 			break;
+		default:
+			netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
+				    __func__, TID);
+			return false;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/rtl8712/rtl871x_recv.c linux-libre-4.9.52-gnu/drivers/staging/rtl8712/rtl871x_recv.c
--- linux-libre-4.9-gnu/drivers/staging/rtl8712/rtl871x_recv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/rtl8712/rtl871x_recv.c	2017-09-27 08:40:05.000000000 -0400
@@ -643,11 +643,16 @@ sint r8712_wlanhdr_to_ethhdr(union recv_
 		/* append rx status for mp test packets */
 		ptr = recvframe_pull(precvframe, (rmv_len -
 		      sizeof(struct ethhdr) + 2) - 24);
+		if (!ptr)
+			return _FAIL;
 		memcpy(ptr, get_rxmem(precvframe), 24);
 		ptr += 24;
-	} else
+	} else {
 		ptr = recvframe_pull(precvframe, (rmv_len -
 		      sizeof(struct ethhdr) + (bsnaphdr ? 2 : 0)));
+		if (!ptr)
+			return _FAIL;
+	}
 
 	memcpy(ptr, pattrib->dst, ETH_ALEN);
 	memcpy(ptr + ETH_ALEN, pattrib->src, ETH_ALEN);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/rts5208/rtsx_scsi.c linux-libre-4.9.52-gnu/drivers/staging/rts5208/rtsx_scsi.c
--- linux-libre-4.9-gnu/drivers/staging/rts5208/rtsx_scsi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/rts5208/rtsx_scsi.c	2017-09-27 08:40:05.000000000 -0400
@@ -414,7 +414,7 @@ void set_sense_data(struct rtsx_chip *ch
 	sense->ascq = ascq;
 	if (sns_key_info0 != 0) {
 		sense->sns_key_info[0] = SKSV | sns_key_info0;
-		sense->sns_key_info[1] = (sns_key_info1 & 0xf0) >> 8;
+		sense->sns_key_info[1] = (sns_key_info1 & 0xf0) >> 4;
 		sense->sns_key_info[2] = sns_key_info1 & 0x0f;
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/sm750fb/sm750.c linux-libre-4.9.52-gnu/drivers/staging/sm750fb/sm750.c
--- linux-libre-4.9-gnu/drivers/staging/sm750fb/sm750.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/sm750fb/sm750.c	2017-09-27 08:40:05.000000000 -0400
@@ -1049,6 +1049,26 @@ release_fb:
 	return err;
 }
 
+static int lynxfb_kick_out_firmware_fb(struct pci_dev *pdev)
+{
+	struct apertures_struct *ap;
+	bool primary = false;
+
+	ap = alloc_apertures(1);
+	if (!ap)
+		return -ENOMEM;
+
+	ap->ranges[0].base = pci_resource_start(pdev, 0);
+	ap->ranges[0].size = pci_resource_len(pdev, 0);
+#ifdef CONFIG_X86
+	primary = pdev->resource[PCI_ROM_RESOURCE].flags &
+					IORESOURCE_ROM_SHADOW;
+#endif
+	remove_conflicting_framebuffers(ap, "sm750_fb1", primary);
+	kfree(ap);
+	return 0;
+}
+
 static int lynxfb_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
@@ -1057,6 +1077,10 @@ static int lynxfb_pci_probe(struct pci_d
 	int fbidx;
 	int err;
 
+	err = lynxfb_kick_out_firmware_fb(pdev);
+	if (err)
+		return err;
+
 	/* enable device */
 	err = pcim_enable_device(pdev);
 	if (err)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/vt6656/main_usb.c linux-libre-4.9.52-gnu/drivers/staging/vt6656/main_usb.c
--- linux-libre-4.9-gnu/drivers/staging/vt6656/main_usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/vt6656/main_usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -522,6 +522,9 @@ static int vnt_start(struct ieee80211_hw
 		goto free_all;
 	}
 
+	if (vnt_key_init_table(priv))
+		goto free_all;
+
 	priv->int_interval = 1;  /* bInterval is set to 1 */
 
 	vnt_int_start_interrupt(priv);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/vt6656/usbpipe.c linux-libre-4.9.52-gnu/drivers/staging/vt6656/usbpipe.c
--- linux-libre-4.9-gnu/drivers/staging/vt6656/usbpipe.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/vt6656/usbpipe.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,15 +47,25 @@ int vnt_control_out(struct vnt_private *
 		u16 index, u16 length, u8 *buffer)
 {
 	int status = 0;
+	u8 *usb_buffer;
 
 	if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
 		return STATUS_FAILURE;
 
 	mutex_lock(&priv->usb_lock);
 
+	usb_buffer = kmemdup(buffer, length, GFP_KERNEL);
+	if (!usb_buffer) {
+		mutex_unlock(&priv->usb_lock);
+		return -ENOMEM;
+	}
+
 	status = usb_control_msg(priv->usb,
-		usb_sndctrlpipe(priv->usb, 0), request, 0x40, value,
-			index, buffer, length, USB_CTL_WAIT);
+				 usb_sndctrlpipe(priv->usb, 0),
+				 request, 0x40, value,
+				 index, usb_buffer, length, USB_CTL_WAIT);
+
+	kfree(usb_buffer);
 
 	mutex_unlock(&priv->usb_lock);
 
@@ -75,15 +85,28 @@ int vnt_control_in(struct vnt_private *p
 		u16 index, u16 length, u8 *buffer)
 {
 	int status;
+	u8 *usb_buffer;
 
 	if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags))
 		return STATUS_FAILURE;
 
 	mutex_lock(&priv->usb_lock);
 
+	usb_buffer = kmalloc(length, GFP_KERNEL);
+	if (!usb_buffer) {
+		mutex_unlock(&priv->usb_lock);
+		return -ENOMEM;
+	}
+
 	status = usb_control_msg(priv->usb,
-		usb_rcvctrlpipe(priv->usb, 0), request, 0xc0, value,
-			index, buffer, length, USB_CTL_WAIT);
+				 usb_rcvctrlpipe(priv->usb, 0),
+				 request, 0xc0, value,
+				 index, usb_buffer, length, USB_CTL_WAIT);
+
+	if (status == length)
+		memcpy(buffer, usb_buffer, length);
+
+	kfree(usb_buffer);
 
 	mutex_unlock(&priv->usb_lock);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/wilc1000/linux_wlan.c linux-libre-4.9.52-gnu/drivers/staging/wilc1000/linux_wlan.c
--- linux-libre-4.9-gnu/drivers/staging/wilc1000/linux_wlan.c	2016-12-11 17:56:33.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/wilc1000/linux_wlan.c	2017-09-27 15:08:27.000000000 -0400
@@ -269,23 +269,12 @@ static struct net_device *get_if_handler
 
 int wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode)
 {
-	int i = 0;
-	int ret = -1;
-	struct wilc_vif *vif;
-	struct wilc *wilc;
-
-	vif = netdev_priv(wilc_netdev);
-	wilc = vif->wilc;
+	struct wilc_vif *vif = netdev_priv(wilc_netdev);
 
-	for (i = 0; i < wilc->vif_num; i++)
-		if (wilc->vif[i]->ndev == wilc_netdev) {
-			memcpy(wilc->vif[i]->bssid, bssid, 6);
-			wilc->vif[i]->mode = mode;
-			ret = 0;
-			break;
-		}
+	memcpy(vif->bssid, bssid, 6);
+	vif->mode = mode;
 
-	return ret;
+	return 0;
 }
 
 int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
@@ -1212,16 +1201,11 @@ void WILC_WFI_mgmt_rx(struct wilc *wilc,
 
 void wilc_netdev_cleanup(struct wilc *wilc)
 {
-	int i = 0;
-	struct wilc_vif *vif[NUM_CONCURRENT_IFC];
+	int i;
 
-	if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) {
+	if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev))
 		unregister_inetaddr_notifier(&g_dev_notifier);
 
-		for (i = 0; i < NUM_CONCURRENT_IFC; i++)
-			vif[i] = netdev_priv(wilc->vif[i]->ndev);
-	}
-
 	if (wilc && wilc->firmware) {
 		release_firmware(wilc->firmware);
 		wilc->firmware = NULL;
@@ -1230,7 +1214,7 @@ void wilc_netdev_cleanup(struct wilc *wi
 	if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) {
 		for (i = 0; i < NUM_CONCURRENT_IFC; i++)
 			if (wilc->vif[i]->ndev)
-				if (vif[i]->mac_opened)
+				if (wilc->vif[i]->mac_opened)
 					wilc_mac_close(wilc->vif[i]->ndev);
 
 		for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
@@ -1278,9 +1262,9 @@ int wilc_netdev_init(struct wilc **wilc,
 
 		vif->idx = wl->vif_num;
 		vif->wilc = *wilc;
+		vif->ndev = ndev;
 		wl->vif[i] = vif;
-		wl->vif[wl->vif_num]->ndev = ndev;
-		wl->vif_num++;
+		wl->vif_num = i;
 		ndev->netdev_ops = &wilc_netdev_ops;
 
 		{
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/staging/wlan-ng/p80211netdev.c linux-libre-4.9.52-gnu/drivers/staging/wlan-ng/p80211netdev.c
--- linux-libre-4.9-gnu/drivers/staging/wlan-ng/p80211netdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/staging/wlan-ng/p80211netdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -232,7 +232,7 @@ static int p80211_convert_to_ether(struc
 	struct p80211_hdr_a3 *hdr;
 
 	hdr = (struct p80211_hdr_a3 *)skb->data;
-	if (p80211_rx_typedrop(wlandev, hdr->fc))
+	if (p80211_rx_typedrop(wlandev, le16_to_cpu(hdr->fc)))
 		return CONV_TO_ETHER_SKIPPED;
 
 	/* perform mcast filtering: allow my local address through but reject
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target.c	2017-09-27 08:40:05.000000000 -0400
@@ -418,6 +418,7 @@ int iscsit_reset_np_thread(
 		return 0;
 	}
 	np->np_thread_state = ISCSI_NP_THREAD_RESET;
+	atomic_inc(&np->np_reset_count);
 
 	if (np->np_thread) {
 		spin_unlock_bh(&np->np_thread_lock);
@@ -1287,6 +1288,18 @@ iscsit_get_immediate_data(struct iscsi_c
 	 */
 	if (dump_payload)
 		goto after_immediate_data;
+	/*
+	 * Check for underflow case where both EDTL and immediate data payload
+	 * exceeds what is presented by CDB's TRANSFER LENGTH, and what has
+	 * already been set in target_cmd_size_check() as se_cmd->data_length.
+	 *
+	 * For this special case, fail the command and dump the immediate data
+	 * payload.
+	 */
+	if (cmd->first_burst_len > cmd->se_cmd.data_length) {
+		cmd->sense_reason = TCM_INVALID_CDB_FIELD;
+		goto after_immediate_data;
+	}
 
 	immed_ret = iscsit_handle_immediate_data(cmd, hdr,
 					cmd->first_burst_len);
@@ -2165,6 +2178,7 @@ iscsit_setup_text_cmd(struct iscsi_conn
 	cmd->cmd_sn		= be32_to_cpu(hdr->cmdsn);
 	cmd->exp_stat_sn	= be32_to_cpu(hdr->exp_statsn);
 	cmd->data_direction	= DMA_NONE;
+	kfree(cmd->text_in_ptr);
 	cmd->text_in_ptr	= NULL;
 
 	return 0;
@@ -3798,6 +3812,8 @@ int iscsi_target_tx_thread(void *arg)
 {
 	int ret = 0;
 	struct iscsi_conn *conn = arg;
+	bool conn_freed = false;
+
 	/*
 	 * Allow ourselves to be interrupted by SIGINT so that a
 	 * connection recovery / failure event can be triggered externally.
@@ -3823,12 +3839,14 @@ get_immediate:
 			goto transport_err;
 
 		ret = iscsit_handle_response_queue(conn);
-		if (ret == 1)
+		if (ret == 1) {
 			goto get_immediate;
-		else if (ret == -ECONNRESET)
+		} else if (ret == -ECONNRESET) {
+			conn_freed = true;
 			goto out;
-		else if (ret < 0)
+		} else if (ret < 0) {
 			goto transport_err;
+		}
 	}
 
 transport_err:
@@ -3838,8 +3856,13 @@ transport_err:
 	 * responsible for cleaning up the early connection failure.
 	 */
 	if (conn->conn_state != TARG_CONN_STATE_IN_LOGIN)
-		iscsit_take_action_for_connection_exit(conn);
+		iscsit_take_action_for_connection_exit(conn, &conn_freed);
 out:
+	if (!conn_freed) {
+		while (!kthread_should_stop()) {
+			msleep(100);
+		}
+	}
 	return 0;
 }
 
@@ -4012,6 +4035,7 @@ int iscsi_target_rx_thread(void *arg)
 {
 	int rc;
 	struct iscsi_conn *conn = arg;
+	bool conn_freed = false;
 
 	/*
 	 * Allow ourselves to be interrupted by SIGINT so that a
@@ -4024,7 +4048,7 @@ int iscsi_target_rx_thread(void *arg)
 	 */
 	rc = wait_for_completion_interruptible(&conn->rx_login_comp);
 	if (rc < 0 || iscsi_target_check_conn_state(conn))
-		return 0;
+		goto out;
 
 	if (!conn->conn_transport->iscsit_get_rx_pdu)
 		return 0;
@@ -4033,7 +4057,15 @@ int iscsi_target_rx_thread(void *arg)
 
 	if (!signal_pending(current))
 		atomic_set(&conn->transport_failed, 1);
-	iscsit_take_action_for_connection_exit(conn);
+	iscsit_take_action_for_connection_exit(conn, &conn_freed);
+
+out:
+	if (!conn_freed) {
+		while (!kthread_should_stop()) {
+			msleep(100);
+		}
+	}
+
 	return 0;
 }
 
@@ -4413,8 +4445,11 @@ static void iscsit_logout_post_handler_c
 	 * always sleep waiting for RX/TX thread shutdown to complete
 	 * within iscsit_close_connection().
 	 */
-	if (!conn->conn_transport->rdma_shutdown)
+	if (!conn->conn_transport->rdma_shutdown) {
 		sleep = cmpxchg(&conn->tx_thread_active, true, false);
+		if (!sleep)
+			return;
+	}
 
 	atomic_set(&conn->conn_logout_remove, 0);
 	complete(&conn->conn_logout_comp);
@@ -4430,8 +4465,11 @@ static void iscsit_logout_post_handler_s
 {
 	int sleep = 1;
 
-	if (!conn->conn_transport->rdma_shutdown)
+	if (!conn->conn_transport->rdma_shutdown) {
 		sleep = cmpxchg(&conn->tx_thread_active, true, false);
+		if (!sleep)
+			return;
+	}
 
 	atomic_set(&conn->conn_logout_remove, 0);
 	complete(&conn->conn_logout_comp);
@@ -4671,6 +4709,7 @@ int iscsit_release_sessions_for_tpg(stru
 			continue;
 		}
 		atomic_set(&sess->session_reinstatement, 1);
+		atomic_set(&sess->session_fall_back_to_erl0, 1);
 		spin_unlock(&sess->conn_lock);
 
 		list_move_tail(&se_sess->sess_list, &free_list);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_configfs.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_configfs.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_configfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_configfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -100,8 +100,10 @@ static ssize_t lio_target_np_driver_stor
 
 		tpg_np_new = iscsit_tpg_add_network_portal(tpg,
 					&np->np_sockaddr, tpg_np, type);
-		if (IS_ERR(tpg_np_new))
+		if (IS_ERR(tpg_np_new)) {
+			rc = PTR_ERR(tpg_np_new);
 			goto out;
+		}
 	} else {
 		tpg_np_new = iscsit_tpg_locate_child_np(tpg_np, type);
 		if (tpg_np_new) {
@@ -800,6 +802,7 @@ DEF_TPG_ATTRIB(default_erl);
 DEF_TPG_ATTRIB(t10_pi);
 DEF_TPG_ATTRIB(fabric_prot_type);
 DEF_TPG_ATTRIB(tpg_enabled_sendtargets);
+DEF_TPG_ATTRIB(login_keys_workaround);
 
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_attr_authentication,
@@ -815,6 +818,7 @@ static struct configfs_attribute *lio_ta
 	&iscsi_tpg_attrib_attr_t10_pi,
 	&iscsi_tpg_attrib_attr_fabric_prot_type,
 	&iscsi_tpg_attrib_attr_tpg_enabled_sendtargets,
+	&iscsi_tpg_attrib_attr_login_keys_workaround,
 	NULL,
 };
 
@@ -1528,6 +1532,7 @@ static void lio_tpg_close_session(struct
 		return;
 	}
 	atomic_set(&sess->session_reinstatement, 1);
+	atomic_set(&sess->session_fall_back_to_erl0, 1);
 	spin_unlock(&sess->conn_lock);
 
 	iscsit_stop_time2retain_timer(sess);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_erl0.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_erl0.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_erl0.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_erl0.c	2017-09-27 08:40:05.000000000 -0400
@@ -930,8 +930,10 @@ static void iscsit_handle_connection_cle
 	}
 }
 
-void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn)
+void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn, bool *conn_freed)
 {
+	*conn_freed = false;
+
 	spin_lock_bh(&conn->state_lock);
 	if (atomic_read(&conn->connection_exit)) {
 		spin_unlock_bh(&conn->state_lock);
@@ -942,6 +944,7 @@ void iscsit_take_action_for_connection_e
 	if (conn->conn_state == TARG_CONN_STATE_IN_LOGOUT) {
 		spin_unlock_bh(&conn->state_lock);
 		iscsit_close_connection(conn);
+		*conn_freed = true;
 		return;
 	}
 
@@ -955,4 +958,5 @@ void iscsit_take_action_for_connection_e
 	spin_unlock_bh(&conn->state_lock);
 
 	iscsit_handle_connection_cleanup(conn);
+	*conn_freed = true;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_erl0.h linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_erl0.h
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_erl0.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_erl0.h	2017-09-27 08:40:05.000000000 -0400
@@ -9,6 +9,6 @@ extern int iscsit_stop_time2retain_timer
 extern void iscsit_connection_reinstatement_rcfr(struct iscsi_conn *);
 extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int);
 extern void iscsit_fall_back_to_erl0(struct iscsi_session *);
-extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *);
+extern void iscsit_take_action_for_connection_exit(struct iscsi_conn *, bool *);
 
 #endif   /*** ISCSI_TARGET_ERL0_H ***/
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_login.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_login.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_login.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_login.c	2017-09-27 08:40:05.000000000 -0400
@@ -204,6 +204,7 @@ int iscsi_check_for_session_reinstatemen
 			    initiatorname_param->value) &&
 		   (sess_p->sess_ops->SessionType == sessiontype))) {
 			atomic_set(&sess_p->session_reinstatement, 1);
+			atomic_set(&sess_p->session_fall_back_to_erl0, 1);
 			spin_unlock(&sess_p->conn_lock);
 			iscsit_inc_session_usage_count(sess_p);
 			iscsit_stop_time2retain_timer(sess_p);
@@ -1232,9 +1233,11 @@ static int __iscsi_target_login_thread(s
 	flush_signals(current);
 
 	spin_lock_bh(&np->np_thread_lock);
-	if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
+	if (atomic_dec_if_positive(&np->np_reset_count) >= 0) {
 		np->np_thread_state = ISCSI_NP_THREAD_ACTIVE;
+		spin_unlock_bh(&np->np_thread_lock);
 		complete(&np->np_restart_comp);
+		return 1;
 	} else if (np->np_thread_state == ISCSI_NP_THREAD_SHUTDOWN) {
 		spin_unlock_bh(&np->np_thread_lock);
 		goto exit;
@@ -1267,7 +1270,8 @@ static int __iscsi_target_login_thread(s
 		goto exit;
 	} else if (rc < 0) {
 		spin_lock_bh(&np->np_thread_lock);
-		if (np->np_thread_state == ISCSI_NP_THREAD_RESET) {
+		if (atomic_dec_if_positive(&np->np_reset_count) >= 0) {
+			np->np_thread_state = ISCSI_NP_THREAD_ACTIVE;
 			spin_unlock_bh(&np->np_thread_lock);
 			complete(&np->np_restart_comp);
 			iscsit_put_transport(conn->conn_transport);
@@ -1459,5 +1463,9 @@ int iscsi_target_login_thread(void *arg)
 			break;
 	}
 
+	while (!kthread_should_stop()) {
+		msleep(100);
+	}
+
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_nego.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_nego.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_nego.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_nego.c	2017-09-27 08:40:05.000000000 -0400
@@ -490,14 +490,60 @@ static void iscsi_target_restore_sock_ca
 
 static int iscsi_target_do_login(struct iscsi_conn *, struct iscsi_login *);
 
-static bool iscsi_target_sk_state_check(struct sock *sk)
+static bool __iscsi_target_sk_check_close(struct sock *sk)
 {
 	if (sk->sk_state == TCP_CLOSE_WAIT || sk->sk_state == TCP_CLOSE) {
-		pr_debug("iscsi_target_sk_state_check: TCP_CLOSE_WAIT|TCP_CLOSE,"
+		pr_debug("__iscsi_target_sk_check_close: TCP_CLOSE_WAIT|TCP_CLOSE,"
 			"returning FALSE\n");
-		return false;
+		return true;
 	}
-	return true;
+	return false;
+}
+
+static bool iscsi_target_sk_check_close(struct iscsi_conn *conn)
+{
+	bool state = false;
+
+	if (conn->sock) {
+		struct sock *sk = conn->sock->sk;
+
+		read_lock_bh(&sk->sk_callback_lock);
+		state = (__iscsi_target_sk_check_close(sk) ||
+			 test_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags));
+		read_unlock_bh(&sk->sk_callback_lock);
+	}
+	return state;
+}
+
+static bool iscsi_target_sk_check_flag(struct iscsi_conn *conn, unsigned int flag)
+{
+	bool state = false;
+
+	if (conn->sock) {
+		struct sock *sk = conn->sock->sk;
+
+		read_lock_bh(&sk->sk_callback_lock);
+		state = test_bit(flag, &conn->login_flags);
+		read_unlock_bh(&sk->sk_callback_lock);
+	}
+	return state;
+}
+
+static bool iscsi_target_sk_check_and_clear(struct iscsi_conn *conn, unsigned int flag)
+{
+	bool state = false;
+
+	if (conn->sock) {
+		struct sock *sk = conn->sock->sk;
+
+		write_lock_bh(&sk->sk_callback_lock);
+		state = (__iscsi_target_sk_check_close(sk) ||
+			 test_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags));
+		if (!state)
+			clear_bit(flag, &conn->login_flags);
+		write_unlock_bh(&sk->sk_callback_lock);
+	}
+	return state;
 }
 
 static void iscsi_target_login_drop(struct iscsi_conn *conn, struct iscsi_login *login)
@@ -537,6 +583,20 @@ static void iscsi_target_do_login_rx(str
 
 	pr_debug("entering iscsi_target_do_login_rx, conn: %p, %s:%d\n",
 			conn, current->comm, current->pid);
+	/*
+	 * If iscsi_target_do_login_rx() has been invoked by ->sk_data_ready()
+	 * before initial PDU processing in iscsi_target_start_negotiation()
+	 * has completed, go ahead and retry until it's cleared.
+	 *
+	 * Otherwise if the TCP connection drops while this is occuring,
+	 * iscsi_target_start_negotiation() will detect the failure, call
+	 * cancel_delayed_work_sync(&conn->login_work), and cleanup the
+	 * remaining iscsi connection resources from iscsi_np process context.
+	 */
+	if (iscsi_target_sk_check_flag(conn, LOGIN_FLAGS_INITIAL_PDU)) {
+		schedule_delayed_work(&conn->login_work, msecs_to_jiffies(10));
+		return;
+	}
 
 	spin_lock(&tpg->tpg_state_lock);
 	state = (tpg->tpg_state == TPG_STATE_ACTIVE);
@@ -544,26 +604,12 @@ static void iscsi_target_do_login_rx(str
 
 	if (!state) {
 		pr_debug("iscsi_target_do_login_rx: tpg_state != TPG_STATE_ACTIVE\n");
-		iscsi_target_restore_sock_callbacks(conn);
-		iscsi_target_login_drop(conn, login);
-		iscsit_deaccess_np(np, tpg, tpg_np);
-		return;
+		goto err;
 	}
 
-	if (conn->sock) {
-		struct sock *sk = conn->sock->sk;
-
-		read_lock_bh(&sk->sk_callback_lock);
-		state = iscsi_target_sk_state_check(sk);
-		read_unlock_bh(&sk->sk_callback_lock);
-
-		if (!state) {
-			pr_debug("iscsi_target_do_login_rx, TCP state CLOSE\n");
-			iscsi_target_restore_sock_callbacks(conn);
-			iscsi_target_login_drop(conn, login);
-			iscsit_deaccess_np(np, tpg, tpg_np);
-			return;
-		}
+	if (iscsi_target_sk_check_close(conn)) {
+		pr_debug("iscsi_target_do_login_rx, TCP state CLOSE\n");
+		goto err;
 	}
 
 	conn->login_kworker = current;
@@ -581,34 +627,29 @@ static void iscsi_target_do_login_rx(str
 	flush_signals(current);
 	conn->login_kworker = NULL;
 
-	if (rc < 0) {
-		iscsi_target_restore_sock_callbacks(conn);
-		iscsi_target_login_drop(conn, login);
-		iscsit_deaccess_np(np, tpg, tpg_np);
-		return;
-	}
+	if (rc < 0)
+		goto err;
 
 	pr_debug("iscsi_target_do_login_rx after rx_login_io, %p, %s:%d\n",
 			conn, current->comm, current->pid);
 
 	rc = iscsi_target_do_login(conn, login);
 	if (rc < 0) {
-		iscsi_target_restore_sock_callbacks(conn);
-		iscsi_target_login_drop(conn, login);
-		iscsit_deaccess_np(np, tpg, tpg_np);
+		goto err;
 	} else if (!rc) {
-		if (conn->sock) {
-			struct sock *sk = conn->sock->sk;
-
-			write_lock_bh(&sk->sk_callback_lock);
-			clear_bit(LOGIN_FLAGS_READ_ACTIVE, &conn->login_flags);
-			write_unlock_bh(&sk->sk_callback_lock);
-		}
+		if (iscsi_target_sk_check_and_clear(conn, LOGIN_FLAGS_READ_ACTIVE))
+			goto err;
 	} else if (rc == 1) {
 		iscsi_target_nego_release(conn);
 		iscsi_post_login_handler(np, conn, zero_tsih);
 		iscsit_deaccess_np(np, tpg, tpg_np);
 	}
+	return;
+
+err:
+	iscsi_target_restore_sock_callbacks(conn);
+	iscsi_target_login_drop(conn, login);
+	iscsit_deaccess_np(np, tpg, tpg_np);
 }
 
 static void iscsi_target_do_cleanup(struct work_struct *work)
@@ -656,31 +697,54 @@ static void iscsi_target_sk_state_change
 		orig_state_change(sk);
 		return;
 	}
+	state = __iscsi_target_sk_check_close(sk);
+	pr_debug("__iscsi_target_sk_close_change: state: %d\n", state);
+
 	if (test_bit(LOGIN_FLAGS_READ_ACTIVE, &conn->login_flags)) {
 		pr_debug("Got LOGIN_FLAGS_READ_ACTIVE=1 sk_state_change"
 			 " conn: %p\n", conn);
+		if (state)
+			set_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags);
 		write_unlock_bh(&sk->sk_callback_lock);
 		orig_state_change(sk);
 		return;
 	}
-	if (test_and_set_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags)) {
+	if (test_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags)) {
 		pr_debug("Got LOGIN_FLAGS_CLOSED=1 sk_state_change conn: %p\n",
 			 conn);
 		write_unlock_bh(&sk->sk_callback_lock);
 		orig_state_change(sk);
 		return;
 	}
+	/*
+	 * If the TCP connection has dropped, go ahead and set LOGIN_FLAGS_CLOSED,
+	 * but only queue conn->login_work -> iscsi_target_do_login_rx()
+	 * processing if LOGIN_FLAGS_INITIAL_PDU has already been cleared.
+	 *
+	 * When iscsi_target_do_login_rx() runs, iscsi_target_sk_check_close()
+	 * will detect the dropped TCP connection from delayed workqueue context.
+	 *
+	 * If LOGIN_FLAGS_INITIAL_PDU is still set, which means the initial
+	 * iscsi_target_start_negotiation() is running, iscsi_target_do_login()
+	 * via iscsi_target_sk_check_close() or iscsi_target_start_negotiation()
+	 * via iscsi_target_sk_check_and_clear() is responsible for detecting the
+	 * dropped TCP connection in iscsi_np process context, and cleaning up
+	 * the remaining iscsi connection resources.
+	 */
+	if (state) {
+		pr_debug("iscsi_target_sk_state_change got failed state\n");
+		set_bit(LOGIN_FLAGS_CLOSED, &conn->login_flags);
+		state = test_bit(LOGIN_FLAGS_INITIAL_PDU, &conn->login_flags);
+		write_unlock_bh(&sk->sk_callback_lock);
 
-	state = iscsi_target_sk_state_check(sk);
-	write_unlock_bh(&sk->sk_callback_lock);
-
-	pr_debug("iscsi_target_sk_state_change: state: %d\n", state);
+		orig_state_change(sk);
 
-	if (!state) {
-		pr_debug("iscsi_target_sk_state_change got failed state\n");
-		schedule_delayed_work(&conn->login_cleanup_work, 0);
+		if (!state)
+			schedule_delayed_work(&conn->login_work, 0);
 		return;
 	}
+	write_unlock_bh(&sk->sk_callback_lock);
+
 	orig_state_change(sk);
 }
 
@@ -819,7 +883,8 @@ static int iscsi_target_handle_csg_zero(
 			SENDER_TARGET,
 			login->rsp_buf,
 			&login->rsp_length,
-			conn->param_list);
+			conn->param_list,
+			conn->tpg->tpg_attrib.login_keys_workaround);
 	if (ret < 0)
 		return -1;
 
@@ -889,7 +954,8 @@ static int iscsi_target_handle_csg_one(s
 			SENDER_TARGET,
 			login->rsp_buf,
 			&login->rsp_length,
-			conn->param_list);
+			conn->param_list,
+			conn->tpg->tpg_attrib.login_keys_workaround);
 	if (ret < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR,
 				ISCSI_LOGIN_STATUS_INIT_ERR);
@@ -943,6 +1009,15 @@ static int iscsi_target_do_login(struct
 			if (iscsi_target_handle_csg_one(conn, login) < 0)
 				return -1;
 			if (login_rsp->flags & ISCSI_FLAG_LOGIN_TRANSIT) {
+				/*
+				 * Check to make sure the TCP connection has not
+				 * dropped asynchronously while session reinstatement
+				 * was occuring in this kthread context, before
+				 * transitioning to full feature phase operation.
+				 */
+				if (iscsi_target_sk_check_close(conn))
+					return -1;
+
 				login->tsih = conn->sess->tsih;
 				login->login_complete = 1;
 				iscsi_target_restore_sock_callbacks(conn);
@@ -969,21 +1044,6 @@ static int iscsi_target_do_login(struct
 		break;
 	}
 
-	if (conn->sock) {
-		struct sock *sk = conn->sock->sk;
-		bool state;
-
-		read_lock_bh(&sk->sk_callback_lock);
-		state = iscsi_target_sk_state_check(sk);
-		read_unlock_bh(&sk->sk_callback_lock);
-
-		if (!state) {
-			pr_debug("iscsi_target_do_login() failed state for"
-				 " conn: %p\n", conn);
-			return -1;
-		}
-	}
-
 	return 0;
 }
 
@@ -1250,13 +1310,25 @@ int iscsi_target_start_negotiation(
        if (conn->sock) {
                struct sock *sk = conn->sock->sk;
 
-               write_lock_bh(&sk->sk_callback_lock);
-               set_bit(LOGIN_FLAGS_READY, &conn->login_flags);
-               write_unlock_bh(&sk->sk_callback_lock);
-       }
+		write_lock_bh(&sk->sk_callback_lock);
+		set_bit(LOGIN_FLAGS_READY, &conn->login_flags);
+		set_bit(LOGIN_FLAGS_INITIAL_PDU, &conn->login_flags);
+		write_unlock_bh(&sk->sk_callback_lock);
+	}
+	/*
+	 * If iscsi_target_do_login returns zero to signal more PDU
+	 * exchanges are required to complete the login, go ahead and
+	 * clear LOGIN_FLAGS_INITIAL_PDU but only if the TCP connection
+	 * is still active.
+	 *
+	 * Otherwise if TCP connection dropped asynchronously, go ahead
+	 * and perform connection cleanup now.
+	 */
+	ret = iscsi_target_do_login(conn, login);
+	if (!ret && iscsi_target_sk_check_and_clear(conn, LOGIN_FLAGS_INITIAL_PDU))
+		ret = -1;
 
-       ret = iscsi_target_do_login(conn, login);
-       if (ret < 0) {
+	if (ret < 0) {
 		cancel_delayed_work_sync(&conn->login_work);
 		cancel_delayed_work_sync(&conn->login_cleanup_work);
 		iscsi_target_restore_sock_callbacks(conn);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_parameters.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_parameters.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_parameters.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_parameters.c	2017-09-27 08:40:05.000000000 -0400
@@ -765,7 +765,8 @@ static int iscsi_check_for_auth_key(char
 	return 0;
 }
 
-static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
+static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param,
+						    bool keys_workaround)
 {
 	if (IS_TYPE_BOOL_AND(param)) {
 		if (!strcmp(param->value, NO))
@@ -773,35 +774,31 @@ static void iscsi_check_proposer_for_opt
 	} else if (IS_TYPE_BOOL_OR(param)) {
 		if (!strcmp(param->value, YES))
 			SET_PSTATE_REPLY_OPTIONAL(param);
-		 /*
-		  * Required for gPXE iSCSI boot client
-		  */
-		if (!strcmp(param->name, IMMEDIATEDATA))
-			SET_PSTATE_REPLY_OPTIONAL(param);
+
+		if (keys_workaround) {
+			/*
+			 * Required for gPXE iSCSI boot client
+			 */
+			if (!strcmp(param->name, IMMEDIATEDATA))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+		}
 	} else if (IS_TYPE_NUMBER(param)) {
 		if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
 			SET_PSTATE_REPLY_OPTIONAL(param);
-		/*
-		 * The GlobalSAN iSCSI Initiator for MacOSX does
-		 * not respond to MaxBurstLength, FirstBurstLength,
-		 * DefaultTime2Wait or DefaultTime2Retain parameter keys.
-		 * So, we set them to 'reply optional' here, and assume the
-		 * the defaults from iscsi_parameters.h if the initiator
-		 * is not RFC compliant and the keys are not negotiated.
-		 */
-		if (!strcmp(param->name, MAXBURSTLENGTH))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		if (!strcmp(param->name, FIRSTBURSTLENGTH))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		if (!strcmp(param->name, DEFAULTTIME2WAIT))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		if (!strcmp(param->name, DEFAULTTIME2RETAIN))
-			SET_PSTATE_REPLY_OPTIONAL(param);
-		/*
-		 * Required for gPXE iSCSI boot client
-		 */
-		if (!strcmp(param->name, MAXCONNECTIONS))
-			SET_PSTATE_REPLY_OPTIONAL(param);
+
+		if (keys_workaround) {
+			/*
+			 * Required for Mellanox Flexboot PXE boot ROM
+			 */
+			if (!strcmp(param->name, FIRSTBURSTLENGTH))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+
+			/*
+			 * Required for gPXE iSCSI boot client
+			 */
+			if (!strcmp(param->name, MAXCONNECTIONS))
+				SET_PSTATE_REPLY_OPTIONAL(param);
+		}
 	} else if (IS_PHASE_DECLARATIVE(param))
 		SET_PSTATE_REPLY_OPTIONAL(param);
 }
@@ -1438,7 +1435,8 @@ int iscsi_encode_text_output(
 	u8 sender,
 	char *textbuf,
 	u32 *length,
-	struct iscsi_param_list *param_list)
+	struct iscsi_param_list *param_list,
+	bool keys_workaround)
 {
 	char *output_buf = NULL;
 	struct iscsi_extra_response *er;
@@ -1474,7 +1472,8 @@ int iscsi_encode_text_output(
 			*length += 1;
 			output_buf = textbuf + *length;
 			SET_PSTATE_PROPOSER(param);
-			iscsi_check_proposer_for_optional_reply(param);
+			iscsi_check_proposer_for_optional_reply(param,
+							        keys_workaround);
 			pr_debug("Sending key: %s=%s\n",
 				param->name, param->value);
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_parameters.h linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_parameters.h
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_parameters.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_parameters.h	2017-09-27 08:40:05.000000000 -0400
@@ -40,7 +40,7 @@ extern int iscsi_extract_key_value(char
 extern int iscsi_update_param_value(struct iscsi_param *, char *);
 extern int iscsi_decode_text_input(u8, u8, char *, u32, struct iscsi_conn *);
 extern int iscsi_encode_text_output(u8, u8, char *, u32 *,
-			struct iscsi_param_list *);
+			struct iscsi_param_list *, bool);
 extern int iscsi_check_negotiated_keys(struct iscsi_param_list *);
 extern void iscsi_set_connection_parameters(struct iscsi_conn_ops *,
 			struct iscsi_param_list *);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_tpg.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_tpg.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_tpg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_tpg.c	2017-09-27 08:40:05.000000000 -0400
@@ -227,6 +227,7 @@ static void iscsit_set_default_tpg_attri
 	a->t10_pi = TA_DEFAULT_T10_PI;
 	a->fabric_prot_type = TA_DEFAULT_FABRIC_PROT_TYPE;
 	a->tpg_enabled_sendtargets = TA_DEFAULT_TPG_ENABLED_SENDTARGETS;
+	a->login_keys_workaround = TA_DEFAULT_LOGIN_KEYS_WORKAROUND;
 }
 
 int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@@ -260,7 +261,6 @@ err_out:
 		iscsi_release_param_list(tpg->param_list);
 		tpg->param_list = NULL;
 	}
-	kfree(tpg);
 	return -ENOMEM;
 }
 
@@ -900,3 +900,21 @@ int iscsit_ta_tpg_enabled_sendtargets(
 
 	return 0;
 }
+
+int iscsit_ta_login_keys_workaround(
+	struct iscsi_portal_group *tpg,
+	u32 flag)
+{
+	struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
+
+	if ((flag != 0) && (flag != 1)) {
+		pr_err("Illegal value %d\n", flag);
+		return -EINVAL;
+	}
+
+	a->login_keys_workaround = flag;
+	pr_debug("iSCSI_TPG[%hu] - TPG enabled bit for login keys workaround: %s ",
+		tpg->tpgt, (a->login_keys_workaround) ? "ON" : "OFF");
+
+	return 0;
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_tpg.h linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_tpg.h
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_tpg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_tpg.h	2017-09-27 08:40:05.000000000 -0400
@@ -39,5 +39,6 @@ extern int iscsit_ta_default_erl(struct
 extern int iscsit_ta_t10_pi(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_fabric_prot_type(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_tpg_enabled_sendtargets(struct iscsi_portal_group *, u32);
+extern int iscsit_ta_login_keys_workaround(struct iscsi_portal_group *, u32);
 
 #endif /* ISCSI_TARGET_TPG_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_util.c linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_util.c
--- linux-libre-4.9-gnu/drivers/target/iscsi/iscsi_target_util.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/iscsi/iscsi_target_util.c	2017-09-27 08:40:05.000000000 -0400
@@ -735,21 +735,23 @@ void iscsit_free_cmd(struct iscsi_cmd *c
 {
 	struct se_cmd *se_cmd = NULL;
 	int rc;
+	bool op_scsi = false;
 	/*
 	 * Determine if a struct se_cmd is associated with
 	 * this struct iscsi_cmd.
 	 */
 	switch (cmd->iscsi_opcode) {
 	case ISCSI_OP_SCSI_CMD:
-		se_cmd = &cmd->se_cmd;
-		__iscsit_free_cmd(cmd, true, shutdown);
+		op_scsi = true;
 		/*
 		 * Fallthrough
 		 */
 	case ISCSI_OP_SCSI_TMFUNC:
-		rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
-		if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
-			__iscsit_free_cmd(cmd, true, shutdown);
+		se_cmd = &cmd->se_cmd;
+		__iscsit_free_cmd(cmd, op_scsi, shutdown);
+		rc = transport_generic_free_cmd(se_cmd, shutdown);
+		if (!rc && shutdown && se_cmd->se_sess) {
+			__iscsit_free_cmd(cmd, op_scsi, shutdown);
 			target_put_sess_cmd(se_cmd);
 		}
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/sbp/sbp_target.c linux-libre-4.9.52-gnu/drivers/target/sbp/sbp_target.c
--- linux-libre-4.9-gnu/drivers/target/sbp/sbp_target.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/sbp/sbp_target.c	2017-09-27 08:40:05.000000000 -0400
@@ -928,7 +928,7 @@ static struct sbp_target_request *sbp_mg
 	struct sbp_target_request *req;
 	int tag;
 
-	tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_ATOMIC);
+	tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING);
 	if (tag < 0)
 		return ERR_PTR(-ENOMEM);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_device.c linux-libre-4.9.52-gnu/drivers/target/target_core_device.c
--- linux-libre-4.9-gnu/drivers/target/target_core_device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_device.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,12 +77,16 @@ transport_lookup_cmd_lun(struct se_cmd *
 					&deve->read_bytes);
 
 		se_lun = rcu_dereference(deve->se_lun);
+
+		if (!percpu_ref_tryget_live(&se_lun->lun_ref)) {
+			se_lun = NULL;
+			goto out_unlock;
+		}
+
 		se_cmd->se_lun = rcu_dereference(deve->se_lun);
 		se_cmd->pr_res_key = deve->pr_res_key;
 		se_cmd->orig_fe_lun = unpacked_lun;
 		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
-
-		percpu_ref_get(&se_lun->lun_ref);
 		se_cmd->lun_ref_active = true;
 
 		if ((se_cmd->data_direction == DMA_TO_DEVICE) &&
@@ -96,6 +100,7 @@ transport_lookup_cmd_lun(struct se_cmd *
 			goto ref_dev;
 		}
 	}
+out_unlock:
 	rcu_read_unlock();
 
 	if (!se_lun) {
@@ -351,7 +356,15 @@ int core_enable_device_list_for_node(
 			kfree(new);
 			return -EINVAL;
 		}
-		BUG_ON(orig->se_lun_acl != NULL);
+		if (orig->se_lun_acl != NULL) {
+			pr_warn_ratelimited("Detected existing explicit"
+				" se_lun_acl->se_lun_group reference for %s"
+				" mapped_lun: %llu, failing\n",
+				 nacl->initiatorname, mapped_lun);
+			mutex_unlock(&nacl->lun_entry_mutex);
+			kfree(new);
+			return -EINVAL;
+		}
 
 		rcu_assign_pointer(new->se_lun, lun);
 		rcu_assign_pointer(new->se_lun_acl, lun_acl);
@@ -807,6 +820,7 @@ struct se_device *target_alloc_device(st
 	xcopy_lun = &dev->xcopy_lun;
 	rcu_assign_pointer(xcopy_lun->lun_se_dev, dev);
 	init_completion(&xcopy_lun->lun_ref_comp);
+	init_completion(&xcopy_lun->lun_shutdown_comp);
 	INIT_LIST_HEAD(&xcopy_lun->lun_deve_list);
 	INIT_LIST_HEAD(&xcopy_lun->lun_dev_link);
 	mutex_init(&xcopy_lun->lun_tg_pt_md_mutex);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_fabric_configfs.c linux-libre-4.9.52-gnu/drivers/target/target_core_fabric_configfs.c
--- linux-libre-4.9-gnu/drivers/target/target_core_fabric_configfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_fabric_configfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -92,6 +92,11 @@ static int target_fabric_mappedlun_link(
 		pr_err("Source se_lun->lun_se_dev does not exist\n");
 		return -EINVAL;
 	}
+	if (lun->lun_shutdown) {
+		pr_err("Unable to create mappedlun symlink because"
+			" lun->lun_shutdown=true\n");
+		return -EINVAL;
+	}
 	se_tpg = lun->lun_tpg;
 
 	nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_file.c linux-libre-4.9.52-gnu/drivers/target/target_core_file.c
--- linux-libre-4.9-gnu/drivers/target/target_core_file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_file.c	2017-09-27 08:40:05.000000000 -0400
@@ -594,8 +594,7 @@ fd_execute_rw(struct se_cmd *cmd, struct
 	if (ret < 0)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	if (ret)
-		target_complete_cmd(cmd, SAM_STAT_GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_internal.h linux-libre-4.9.52-gnu/drivers/target/target_core_internal.h
--- linux-libre-4.9-gnu/drivers/target/target_core_internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -131,7 +131,7 @@ int	init_se_kmem_caches(void);
 void	release_se_kmem_caches(void);
 u32	scsi_get_new_index(scsi_index_t);
 void	transport_subsystem_check_init(void);
-void	transport_cmd_finish_abort(struct se_cmd *, int);
+int	transport_cmd_finish_abort(struct se_cmd *, int);
 unsigned char *transport_dump_cmd_direction(struct se_cmd *);
 void	transport_dump_dev_state(struct se_device *, char *, int *);
 void	transport_dump_dev_info(struct se_device *, struct se_lun *,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_pscsi.c linux-libre-4.9.52-gnu/drivers/target/target_core_pscsi.c
--- linux-libre-4.9-gnu/drivers/target/target_core_pscsi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_pscsi.c	2017-09-27 08:40:05.000000000 -0400
@@ -154,7 +154,7 @@ static void pscsi_tape_read_blocksize(st
 
 	buf = kzalloc(12, GFP_KERNEL);
 	if (!buf)
-		return;
+		goto out_free;
 
 	memset(cdb, 0, MAX_COMMAND_SIZE);
 	cdb[0] = MODE_SENSE;
@@ -169,9 +169,10 @@ static void pscsi_tape_read_blocksize(st
 	 * If MODE_SENSE still returns zero, set the default value to 1024.
 	 */
 	sdev->sector_size = (buf[9] << 16) | (buf[10] << 8) | (buf[11]);
+out_free:
 	if (!sdev->sector_size)
 		sdev->sector_size = 1024;
-out_free:
+
 	kfree(buf);
 }
 
@@ -314,9 +315,10 @@ static int pscsi_add_device_to_list(stru
 				sd->lun, sd->queue_depth);
 	}
 
-	dev->dev_attrib.hw_block_size = sd->sector_size;
+	dev->dev_attrib.hw_block_size =
+		min_not_zero((int)sd->sector_size, 512);
 	dev->dev_attrib.hw_max_sectors =
-		min_t(int, sd->host->max_sectors, queue_max_hw_sectors(q));
+		min_not_zero(sd->host->max_sectors, queue_max_hw_sectors(q));
 	dev->dev_attrib.hw_queue_depth = sd->queue_depth;
 
 	/*
@@ -339,8 +341,10 @@ static int pscsi_add_device_to_list(stru
 	/*
 	 * For TYPE_TAPE, attempt to determine blocksize with MODE_SENSE.
 	 */
-	if (sd->type == TYPE_TAPE)
+	if (sd->type == TYPE_TAPE) {
 		pscsi_tape_read_blocksize(dev, sd);
+		dev->dev_attrib.hw_block_size = sd->sector_size;
+	}
 	return 0;
 }
 
@@ -406,7 +410,7 @@ static int pscsi_create_type_disk(struct
 /*
  * Called with struct Scsi_Host->host_lock called.
  */
-static int pscsi_create_type_rom(struct se_device *dev, struct scsi_device *sd)
+static int pscsi_create_type_nondisk(struct se_device *dev, struct scsi_device *sd)
 	__releases(sh->host_lock)
 {
 	struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
@@ -433,28 +437,6 @@ static int pscsi_create_type_rom(struct
 	return 0;
 }
 
-/*
- * Called with struct Scsi_Host->host_lock called.
- */
-static int pscsi_create_type_other(struct se_device *dev,
-		struct scsi_device *sd)
-	__releases(sh->host_lock)
-{
-	struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr;
-	struct Scsi_Host *sh = sd->host;
-	int ret;
-
-	spin_unlock_irq(sh->host_lock);
-	ret = pscsi_add_device_to_list(dev, sd);
-	if (ret)
-		return ret;
-
-	pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%llu\n",
-		phv->phv_host_id, scsi_device_type(sd->type), sh->host_no,
-		sd->channel, sd->id, sd->lun);
-	return 0;
-}
-
 static int pscsi_configure_device(struct se_device *dev)
 {
 	struct se_hba *hba = dev->se_hba;
@@ -542,11 +524,8 @@ static int pscsi_configure_device(struct
 		case TYPE_DISK:
 			ret = pscsi_create_type_disk(dev, sd);
 			break;
-		case TYPE_ROM:
-			ret = pscsi_create_type_rom(dev, sd);
-			break;
 		default:
-			ret = pscsi_create_type_other(dev, sd);
+			ret = pscsi_create_type_nondisk(dev, sd);
 			break;
 		}
 
@@ -611,8 +590,7 @@ static void pscsi_free_device(struct se_
 		else if (pdv->pdv_lld_host)
 			scsi_host_put(pdv->pdv_lld_host);
 
-		if ((sd->type == TYPE_DISK) || (sd->type == TYPE_ROM))
-			scsi_device_put(sd);
+		scsi_device_put(sd);
 
 		pdv->pdv_sd = NULL;
 	}
@@ -1069,7 +1047,6 @@ static sector_t pscsi_get_blocks(struct
 	if (pdv->pdv_bd && pdv->pdv_bd->bd_part)
 		return pdv->pdv_bd->bd_part->nr_sects;
 
-	dump_stack();
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_sbc.c linux-libre-4.9.52-gnu/drivers/target/target_core_sbc.c
--- linux-libre-4.9-gnu/drivers/target/target_core_sbc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_sbc.c	2017-09-27 08:40:05.000000000 -0400
@@ -450,6 +450,7 @@ static sense_reason_t compare_and_write_
 					     int *post_ret)
 {
 	struct se_device *dev = cmd->se_dev;
+	sense_reason_t ret = TCM_NO_SENSE;
 
 	/*
 	 * Only set SCF_COMPARE_AND_WRITE_POST to force a response fall-through
@@ -457,9 +458,12 @@ static sense_reason_t compare_and_write_
 	 * sent to the backend driver.
 	 */
 	spin_lock_irq(&cmd->t_state_lock);
-	if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status) {
+	if (cmd->transport_state & CMD_T_SENT) {
 		cmd->se_cmd_flags |= SCF_COMPARE_AND_WRITE_POST;
 		*post_ret = 1;
+
+		if (cmd->scsi_status == SAM_STAT_CHECK_CONDITION)
+			ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 	}
 	spin_unlock_irq(&cmd->t_state_lock);
 
@@ -469,7 +473,7 @@ static sense_reason_t compare_and_write_
 	 */
 	up(&dev->caw_sem);
 
-	return TCM_NO_SENSE;
+	return ret;
 }
 
 static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success,
@@ -502,8 +506,11 @@ static sense_reason_t compare_and_write_
 	 * been failed with a non-zero SCSI status.
 	 */
 	if (cmd->scsi_status) {
-		pr_err("compare_and_write_callback: non zero scsi_status:"
+		pr_debug("compare_and_write_callback: non zero scsi_status:"
 			" 0x%02x\n", cmd->scsi_status);
+		*post_ret = 1;
+		if (cmd->scsi_status == SAM_STAT_CHECK_CONDITION)
+			ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 		goto out;
 	}
 
@@ -1100,9 +1107,15 @@ sbc_parse_cdb(struct se_cmd *cmd, struct
 			return ret;
 		break;
 	case VERIFY:
+	case VERIFY_16:
 		size = 0;
-		sectors = transport_get_sectors_10(cdb);
-		cmd->t_task_lba = transport_lba_32(cdb);
+		if (cdb[0] == VERIFY) {
+			sectors = transport_get_sectors_10(cdb);
+			cmd->t_task_lba = transport_lba_32(cdb);
+		} else {
+			sectors = transport_get_sectors_16(cdb);
+			cmd->t_task_lba = transport_lba_64(cdb);
+		}
 		cmd->execute_cmd = sbc_emulate_noop;
 		goto check_lba;
 	case REZERO_UNIT:
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_tmr.c linux-libre-4.9.52-gnu/drivers/target/target_core_tmr.c
--- linux-libre-4.9-gnu/drivers/target/target_core_tmr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_tmr.c	2017-09-27 08:40:05.000000000 -0400
@@ -75,7 +75,7 @@ void core_tmr_release_req(struct se_tmr_
 	kfree(tmr);
 }
 
-static void core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas)
+static int core_tmr_handle_tas_abort(struct se_cmd *cmd, int tas)
 {
 	unsigned long flags;
 	bool remove = true, send_tas;
@@ -91,7 +91,7 @@ static void core_tmr_handle_tas_abort(st
 		transport_send_task_abort(cmd);
 	}
 
-	transport_cmd_finish_abort(cmd, remove);
+	return transport_cmd_finish_abort(cmd, remove);
 }
 
 static int target_check_cdb_and_preempt(struct list_head *list,
@@ -185,8 +185,8 @@ void core_tmr_abort_task(
 		cancel_work_sync(&se_cmd->work);
 		transport_wait_for_tasks(se_cmd);
 
-		transport_cmd_finish_abort(se_cmd, true);
-		target_put_sess_cmd(se_cmd);
+		if (!transport_cmd_finish_abort(se_cmd, true))
+			target_put_sess_cmd(se_cmd);
 
 		printk("ABORT_TASK: Sending TMR_FUNCTION_COMPLETE for"
 				" ref_tag: %llu\n", ref_tag);
@@ -286,8 +286,8 @@ static void core_tmr_drain_tmr_list(
 		cancel_work_sync(&cmd->work);
 		transport_wait_for_tasks(cmd);
 
-		transport_cmd_finish_abort(cmd, 1);
-		target_put_sess_cmd(cmd);
+		if (!transport_cmd_finish_abort(cmd, 1))
+			target_put_sess_cmd(cmd);
 	}
 }
 
@@ -385,8 +385,8 @@ static void core_tmr_drain_state_list(
 		cancel_work_sync(&cmd->work);
 		transport_wait_for_tasks(cmd);
 
-		core_tmr_handle_tas_abort(cmd, tas);
-		target_put_sess_cmd(cmd);
+		if (!core_tmr_handle_tas_abort(cmd, tas))
+			target_put_sess_cmd(cmd);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_tpg.c linux-libre-4.9.52-gnu/drivers/target/target_core_tpg.c
--- linux-libre-4.9-gnu/drivers/target/target_core_tpg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_tpg.c	2017-09-27 08:40:05.000000000 -0400
@@ -364,7 +364,7 @@ void core_tpg_del_initiator_node_acl(str
 	mutex_lock(&tpg->acl_node_mutex);
 	if (acl->dynamic_node_acl)
 		acl->dynamic_node_acl = 0;
-	list_del(&acl->acl_list);
+	list_del_init(&acl->acl_list);
 	mutex_unlock(&tpg->acl_node_mutex);
 
 	target_shutdown_sessions(acl);
@@ -445,7 +445,7 @@ static void core_tpg_lun_ref_release(str
 {
 	struct se_lun *lun = container_of(ref, struct se_lun, lun_ref);
 
-	complete(&lun->lun_ref_comp);
+	complete(&lun->lun_shutdown_comp);
 }
 
 int core_tpg_register(
@@ -540,7 +540,7 @@ int core_tpg_deregister(struct se_portal
 	 * in transport_deregister_session().
 	 */
 	list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) {
-		list_del(&nacl->acl_list);
+		list_del_init(&nacl->acl_list);
 
 		core_tpg_wait_for_nacl_pr_ref(nacl);
 		core_free_device_list_for_node(nacl, se_tpg);
@@ -571,6 +571,7 @@ struct se_lun *core_tpg_alloc_lun(
 	lun->lun_link_magic = SE_LUN_LINK_MAGIC;
 	atomic_set(&lun->lun_acl_count, 0);
 	init_completion(&lun->lun_ref_comp);
+	init_completion(&lun->lun_shutdown_comp);
 	INIT_LIST_HEAD(&lun->lun_deve_list);
 	INIT_LIST_HEAD(&lun->lun_dev_link);
 	atomic_set(&lun->lun_tg_pt_secondary_offline, 0);
@@ -639,6 +640,8 @@ void core_tpg_remove_lun(
 	 */
 	struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
 
+	lun->lun_shutdown = true;
+
 	core_clear_lun_from_tpg(lun, tpg);
 	/*
 	 * Wait for any active I/O references to percpu se_lun->lun_ref to
@@ -660,6 +663,8 @@ void core_tpg_remove_lun(
 	}
 	if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
 		hlist_del_rcu(&lun->link);
+
+	lun->lun_shutdown = false;
 	mutex_unlock(&tpg->tpg_lun_mutex);
 
 	percpu_ref_exit(&lun->lun_ref);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_transport.c linux-libre-4.9.52-gnu/drivers/target/target_core_transport.c
--- linux-libre-4.9-gnu/drivers/target/target_core_transport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_transport.c	2017-09-27 08:40:05.000000000 -0400
@@ -457,8 +457,20 @@ static void target_complete_nacl(struct
 {
 	struct se_node_acl *nacl = container_of(kref,
 				struct se_node_acl, acl_kref);
+	struct se_portal_group *se_tpg = nacl->se_tpg;
 
-	complete(&nacl->acl_free_comp);
+	if (!nacl->dynamic_stop) {
+		complete(&nacl->acl_free_comp);
+		return;
+	}
+
+	mutex_lock(&se_tpg->acl_node_mutex);
+	list_del_init(&nacl->acl_list);
+	mutex_unlock(&se_tpg->acl_node_mutex);
+
+	core_tpg_wait_for_nacl_pr_ref(nacl);
+	core_free_device_list_for_node(nacl, se_tpg);
+	kfree(nacl);
 }
 
 void target_put_nacl(struct se_node_acl *nacl)
@@ -499,12 +511,39 @@ EXPORT_SYMBOL(transport_deregister_sessi
 void transport_free_session(struct se_session *se_sess)
 {
 	struct se_node_acl *se_nacl = se_sess->se_node_acl;
+
 	/*
 	 * Drop the se_node_acl->nacl_kref obtained from within
 	 * core_tpg_get_initiator_node_acl().
 	 */
 	if (se_nacl) {
+		struct se_portal_group *se_tpg = se_nacl->se_tpg;
+		const struct target_core_fabric_ops *se_tfo = se_tpg->se_tpg_tfo;
+		unsigned long flags;
+
 		se_sess->se_node_acl = NULL;
+
+		/*
+		 * Also determine if we need to drop the extra ->cmd_kref if
+		 * it had been previously dynamically generated, and
+		 * the endpoint is not caching dynamic ACLs.
+		 */
+		mutex_lock(&se_tpg->acl_node_mutex);
+		if (se_nacl->dynamic_node_acl &&
+		    !se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
+			spin_lock_irqsave(&se_nacl->nacl_sess_lock, flags);
+			if (list_empty(&se_nacl->acl_sess_list))
+				se_nacl->dynamic_stop = true;
+			spin_unlock_irqrestore(&se_nacl->nacl_sess_lock, flags);
+
+			if (se_nacl->dynamic_stop)
+				list_del_init(&se_nacl->acl_list);
+		}
+		mutex_unlock(&se_tpg->acl_node_mutex);
+
+		if (se_nacl->dynamic_stop)
+			target_put_nacl(se_nacl);
+
 		target_put_nacl(se_nacl);
 	}
 	if (se_sess->sess_cmd_map) {
@@ -518,16 +557,12 @@ EXPORT_SYMBOL(transport_free_session);
 void transport_deregister_session(struct se_session *se_sess)
 {
 	struct se_portal_group *se_tpg = se_sess->se_tpg;
-	const struct target_core_fabric_ops *se_tfo;
-	struct se_node_acl *se_nacl;
 	unsigned long flags;
-	bool drop_nacl = false;
 
 	if (!se_tpg) {
 		transport_free_session(se_sess);
 		return;
 	}
-	se_tfo = se_tpg->se_tpg_tfo;
 
 	spin_lock_irqsave(&se_tpg->session_lock, flags);
 	list_del(&se_sess->sess_list);
@@ -535,33 +570,15 @@ void transport_deregister_session(struct
 	se_sess->fabric_sess_ptr = NULL;
 	spin_unlock_irqrestore(&se_tpg->session_lock, flags);
 
-	/*
-	 * Determine if we need to do extra work for this initiator node's
-	 * struct se_node_acl if it had been previously dynamically generated.
-	 */
-	se_nacl = se_sess->se_node_acl;
-
-	mutex_lock(&se_tpg->acl_node_mutex);
-	if (se_nacl && se_nacl->dynamic_node_acl) {
-		if (!se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
-			list_del(&se_nacl->acl_list);
-			drop_nacl = true;
-		}
-	}
-	mutex_unlock(&se_tpg->acl_node_mutex);
-
-	if (drop_nacl) {
-		core_tpg_wait_for_nacl_pr_ref(se_nacl);
-		core_free_device_list_for_node(se_nacl, se_tpg);
-		se_sess->se_node_acl = NULL;
-		kfree(se_nacl);
-	}
 	pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n",
 		se_tpg->se_tpg_tfo->get_fabric_name());
 	/*
 	 * If last kref is dropping now for an explicit NodeACL, awake sleeping
 	 * ->acl_free_comp caller to wakeup configfs se_node_acl->acl_group
 	 * removal context from within transport_free_session() code.
+	 *
+	 * For dynamic ACL, target_put_nacl() uses target_complete_nacl()
+	 * to release all remaining generate_node_acl=1 created ACL resources.
 	 */
 
 	transport_free_session(se_sess);
@@ -656,9 +673,10 @@ static void transport_lun_remove_cmd(str
 		percpu_ref_put(&lun->lun_ref);
 }
 
-void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
+int transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
 {
 	bool ack_kref = (cmd->se_cmd_flags & SCF_ACK_KREF);
+	int ret = 0;
 
 	if (cmd->se_cmd_flags & SCF_SE_LUN_CMD)
 		transport_lun_remove_cmd(cmd);
@@ -670,9 +688,11 @@ void transport_cmd_finish_abort(struct s
 		cmd->se_tfo->aborted_task(cmd);
 
 	if (transport_cmd_check_stop_to_fabric(cmd))
-		return;
+		return 1;
 	if (remove && ack_kref)
-		transport_put_cmd(cmd);
+		ret = transport_put_cmd(cmd);
+
+	return ret;
 }
 
 static void target_complete_failure_work(struct work_struct *work)
@@ -733,6 +753,15 @@ void target_complete_cmd(struct se_cmd *
 	if (cmd->transport_state & CMD_T_ABORTED ||
 	    cmd->transport_state & CMD_T_STOP) {
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+		/*
+		 * If COMPARE_AND_WRITE was stopped by __transport_wait_for_tasks(),
+		 * release se_device->caw_sem obtained by sbc_compare_and_write()
+		 * since target_complete_ok_work() or target_complete_failure_work()
+		 * won't be called to invoke the normal CAW completion callbacks.
+		 */
+		if (cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) {
+			up(&dev->caw_sem);
+		}
 		complete_all(&cmd->t_transport_stop_comp);
 		return;
 	} else if (!success) {
@@ -1165,15 +1194,28 @@ target_cmd_size_check(struct se_cmd *cmd
 	if (cmd->unknown_data_length) {
 		cmd->data_length = size;
 	} else if (size != cmd->data_length) {
-		pr_warn("TARGET_CORE[%s]: Expected Transfer Length:"
+		pr_warn_ratelimited("TARGET_CORE[%s]: Expected Transfer Length:"
 			" %u does not match SCSI CDB Length: %u for SAM Opcode:"
 			" 0x%02x\n", cmd->se_tfo->get_fabric_name(),
 				cmd->data_length, size, cmd->t_task_cdb[0]);
 
-		if (cmd->data_direction == DMA_TO_DEVICE &&
-		    cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) {
-			pr_err("Rejecting underflow/overflow WRITE data\n");
-			return TCM_INVALID_CDB_FIELD;
+		if (cmd->data_direction == DMA_TO_DEVICE) {
+			if (cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) {
+				pr_err_ratelimited("Rejecting underflow/overflow"
+						   " for WRITE data CDB\n");
+				return TCM_INVALID_CDB_FIELD;
+			}
+			/*
+			 * Some fabric drivers like iscsi-target still expect to
+			 * always reject overflow writes.  Reject this case until
+			 * full fabric driver level support for overflow writes
+			 * is introduced tree-wide.
+			 */
+			if (size > cmd->data_length) {
+				pr_err_ratelimited("Rejecting overflow for"
+						   " WRITE control CDB\n");
+				return TCM_INVALID_CDB_FIELD;
+			}
 		}
 		/*
 		 * Reject READ_* or WRITE_* with overflow/underflow for
@@ -2685,10 +2727,39 @@ void target_wait_for_sess_cmds(struct se
 }
 EXPORT_SYMBOL(target_wait_for_sess_cmds);
 
+static void target_lun_confirm(struct percpu_ref *ref)
+{
+	struct se_lun *lun = container_of(ref, struct se_lun, lun_ref);
+
+	complete(&lun->lun_ref_comp);
+}
+
 void transport_clear_lun_ref(struct se_lun *lun)
 {
-	percpu_ref_kill(&lun->lun_ref);
+	/*
+	 * Mark the percpu-ref as DEAD, switch to atomic_t mode, drop
+	 * the initial reference and schedule confirm kill to be
+	 * executed after one full RCU grace period has completed.
+	 */
+	percpu_ref_kill_and_confirm(&lun->lun_ref, target_lun_confirm);
+	/*
+	 * The first completion waits for percpu_ref_switch_to_atomic_rcu()
+	 * to call target_lun_confirm after lun->lun_ref has been marked
+	 * as __PERCPU_REF_DEAD on all CPUs, and switches to atomic_t
+	 * mode so that percpu_ref_tryget_live() lookup of lun->lun_ref
+	 * fails for all new incoming I/O.
+	 */
 	wait_for_completion(&lun->lun_ref_comp);
+	/*
+	 * The second completion waits for percpu_ref_put_many() to
+	 * invoke ->release() after lun->lun_ref has switched to
+	 * atomic_t mode, and lun->lun_ref.count has reached zero.
+	 *
+	 * At this point all target-core lun->lun_ref references have
+	 * been dropped via transport_lun_remove_cmd(), and it's safe
+	 * to proceed with the remaining LUN shutdown.
+	 */
+	wait_for_completion(&lun->lun_shutdown_comp);
 }
 
 static bool
@@ -3086,7 +3157,6 @@ static void target_tmr_work(struct work_
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 		goto check_stop;
 	}
-	cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
 	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
 	cmd->se_tfo->queue_tm_rsp(cmd);
@@ -3099,11 +3169,25 @@ int transport_generic_handle_tmr(
 	struct se_cmd *cmd)
 {
 	unsigned long flags;
+	bool aborted = false;
 
 	spin_lock_irqsave(&cmd->t_state_lock, flags);
-	cmd->transport_state |= CMD_T_ACTIVE;
+	if (cmd->transport_state & CMD_T_ABORTED) {
+		aborted = true;
+	} else {
+		cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
+		cmd->transport_state |= CMD_T_ACTIVE;
+	}
 	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 
+	if (aborted) {
+		pr_warn_ratelimited("handle_tmr caught CMD_T_ABORTED TMR %d"
+			"ref_tag: %llu tag: %llu\n", cmd->se_tmr_req->function,
+			cmd->se_tmr_req->ref_task_tag, cmd->tag);
+		transport_cmd_check_stop_to_fabric(cmd);
+		return 0;
+	}
+
 	INIT_WORK(&cmd->work, target_tmr_work);
 	queue_work(cmd->se_dev->tmr_wq, &cmd->work);
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_user.c linux-libre-4.9.52-gnu/drivers/target/target_core_user.c
--- linux-libre-4.9-gnu/drivers/target/target_core_user.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_user.c	2017-09-27 08:40:05.000000000 -0400
@@ -306,24 +306,50 @@ static void free_data_area(struct tcmu_d
 		   DATA_BLOCK_BITS);
 }
 
-static void gather_data_area(struct tcmu_dev *udev, unsigned long *cmd_bitmap,
-		struct scatterlist *data_sg, unsigned int data_nents)
+static void gather_data_area(struct tcmu_dev *udev, struct tcmu_cmd *cmd,
+			     bool bidi)
 {
+	struct se_cmd *se_cmd = cmd->se_cmd;
 	int i, block;
 	int block_remaining = 0;
 	void *from, *to;
 	size_t copy_bytes, from_offset;
-	struct scatterlist *sg;
+	struct scatterlist *sg, *data_sg;
+	unsigned int data_nents;
+	DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS);
+
+	bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS);
+
+	if (!bidi) {
+		data_sg = se_cmd->t_data_sg;
+		data_nents = se_cmd->t_data_nents;
+	} else {
+		uint32_t count;
+
+		/*
+		 * For bidi case, the first count blocks are for Data-Out
+		 * buffer blocks, and before gathering the Data-In buffer
+		 * the Data-Out buffer blocks should be discarded.
+		 */
+		count = DIV_ROUND_UP(se_cmd->data_length, DATA_BLOCK_SIZE);
+		while (count--) {
+			block = find_first_bit(bitmap, DATA_BLOCK_BITS);
+			clear_bit(block, bitmap);
+		}
+
+		data_sg = se_cmd->t_bidi_data_sg;
+		data_nents = se_cmd->t_bidi_data_nents;
+	}
 
 	for_each_sg(data_sg, sg, data_nents, i) {
 		int sg_remaining = sg->length;
 		to = kmap_atomic(sg_page(sg)) + sg->offset;
 		while (sg_remaining > 0) {
 			if (block_remaining == 0) {
-				block = find_first_bit(cmd_bitmap,
+				block = find_first_bit(bitmap,
 						DATA_BLOCK_BITS);
 				block_remaining = DATA_BLOCK_SIZE;
-				clear_bit(block, cmd_bitmap);
+				clear_bit(block, bitmap);
 			}
 			copy_bytes = min_t(size_t, sg_remaining,
 					block_remaining);
@@ -389,6 +415,27 @@ static bool is_ring_space_avail(struct t
 	return true;
 }
 
+static inline size_t tcmu_cmd_get_data_length(struct tcmu_cmd *tcmu_cmd)
+{
+	struct se_cmd *se_cmd = tcmu_cmd->se_cmd;
+	size_t data_length = round_up(se_cmd->data_length, DATA_BLOCK_SIZE);
+
+	if (se_cmd->se_cmd_flags & SCF_BIDI) {
+		BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents));
+		data_length += round_up(se_cmd->t_bidi_data_sg->length,
+				DATA_BLOCK_SIZE);
+	}
+
+	return data_length;
+}
+
+static inline uint32_t tcmu_cmd_get_block_cnt(struct tcmu_cmd *tcmu_cmd)
+{
+	size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd);
+
+	return data_length / DATA_BLOCK_SIZE;
+}
+
 static sense_reason_t
 tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
 {
@@ -402,7 +449,7 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcm
 	uint32_t cmd_head;
 	uint64_t cdb_off;
 	bool copy_to_data_area;
-	size_t data_length;
+	size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd);
 	DECLARE_BITMAP(old_bitmap, DATA_BLOCK_BITS);
 
 	if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags))
@@ -416,8 +463,7 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcm
 	 * expensive to tell how many regions are freed in the bitmap
 	*/
 	base_command_size = max(offsetof(struct tcmu_cmd_entry,
-				req.iov[se_cmd->t_bidi_data_nents +
-					se_cmd->t_data_nents]),
+				req.iov[tcmu_cmd_get_block_cnt(tcmu_cmd)]),
 				sizeof(struct tcmu_cmd_entry));
 	command_size = base_command_size
 		+ round_up(scsi_command_size(se_cmd->t_task_cdb), TCMU_OP_ALIGN_SIZE);
@@ -428,11 +474,6 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcm
 
 	mb = udev->mb_addr;
 	cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */
-	data_length = se_cmd->data_length;
-	if (se_cmd->se_cmd_flags & SCF_BIDI) {
-		BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents));
-		data_length += se_cmd->t_bidi_data_sg->length;
-	}
 	if ((command_size > (udev->cmdr_size / 2)) ||
 	    data_length > udev->data_size) {
 		pr_warn("TCMU: Request of size %zu/%zu is too big for %u/%zu "
@@ -502,11 +543,14 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcm
 	entry->req.iov_dif_cnt = 0;
 
 	/* Handle BIDI commands */
-	iov_cnt = 0;
-	alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg,
-		se_cmd->t_bidi_data_nents, &iov, &iov_cnt, false);
-	entry->req.iov_bidi_cnt = iov_cnt;
-
+	if (se_cmd->se_cmd_flags & SCF_BIDI) {
+		iov_cnt = 0;
+		iov++;
+		alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg,
+				se_cmd->t_bidi_data_nents, &iov, &iov_cnt,
+				false);
+		entry->req.iov_bidi_cnt = iov_cnt;
+	}
 	/* cmd's data_bitmap is what changed in process */
 	bitmap_xor(tcmu_cmd->data_bitmap, old_bitmap, udev->data_bitmap,
 			DATA_BLOCK_BITS);
@@ -582,19 +626,11 @@ static void tcmu_handle_completion(struc
 			       se_cmd->scsi_sense_length);
 		free_data_area(udev, cmd);
 	} else if (se_cmd->se_cmd_flags & SCF_BIDI) {
-		DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS);
-
 		/* Get Data-In buffer before clean up */
-		bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS);
-		gather_data_area(udev, bitmap,
-			se_cmd->t_bidi_data_sg, se_cmd->t_bidi_data_nents);
+		gather_data_area(udev, cmd, true);
 		free_data_area(udev, cmd);
 	} else if (se_cmd->data_direction == DMA_FROM_DEVICE) {
-		DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS);
-
-		bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS);
-		gather_data_area(udev, bitmap,
-			se_cmd->t_data_sg, se_cmd->t_data_nents);
+		gather_data_area(udev, cmd, false);
 		free_data_area(udev, cmd);
 	} else if (se_cmd->data_direction == DMA_TO_DEVICE) {
 		free_data_area(udev, cmd);
@@ -685,8 +721,6 @@ static int tcmu_check_expired_cmd(int id
 	target_complete_cmd(cmd->se_cmd, SAM_STAT_CHECK_CONDITION);
 	cmd->se_cmd = NULL;
 
-	kmem_cache_free(tcmu_cmd_cache, cmd);
-
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/target/target_core_xcopy.c linux-libre-4.9.52-gnu/drivers/target/target_core_xcopy.c
--- linux-libre-4.9-gnu/drivers/target/target_core_xcopy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/target/target_core_xcopy.c	2017-09-27 08:40:05.000000000 -0400
@@ -836,7 +836,7 @@ out:
 			" CHECK_CONDITION -> sending response\n", rc);
 		ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
 	}
-	target_complete_cmd(ec_cmd, SAM_STAT_CHECK_CONDITION);
+	target_complete_cmd(ec_cmd, ec_cmd->scsi_status);
 }
 
 sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/thermal/cpu_cooling.c linux-libre-4.9.52-gnu/drivers/thermal/cpu_cooling.c
--- linux-libre-4.9-gnu/drivers/thermal/cpu_cooling.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/thermal/cpu_cooling.c	2017-09-27 08:40:05.000000000 -0400
@@ -191,8 +191,10 @@ unsigned long cpufreq_cooling_get_level(
 	mutex_lock(&cooling_list_lock);
 	list_for_each_entry(cpufreq_dev, &cpufreq_dev_list, node) {
 		if (cpumask_test_cpu(cpu, &cpufreq_dev->allowed_cpus)) {
+			unsigned long level = get_level(cpufreq_dev, freq);
+
 			mutex_unlock(&cooling_list_lock);
-			return get_level(cpufreq_dev, freq);
+			return level;
 		}
 	}
 	mutex_unlock(&cooling_list_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/thermal/max77620_thermal.c linux-libre-4.9.52-gnu/drivers/thermal/max77620_thermal.c
--- linux-libre-4.9-gnu/drivers/thermal/max77620_thermal.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/thermal/max77620_thermal.c	2017-09-27 08:40:05.000000000 -0400
@@ -104,8 +104,6 @@ static int max77620_thermal_probe(struct
 		return -EINVAL;
 	}
 
-	pdev->dev.of_node = pdev->dev.parent->of_node;
-
 	mtherm->dev = &pdev->dev;
 	mtherm->rmap = dev_get_regmap(pdev->dev.parent, NULL);
 	if (!mtherm->rmap) {
@@ -113,6 +111,14 @@ static int max77620_thermal_probe(struct
 		return -ENODEV;
 	}
 
+	/*
+	 * Drop any current reference to a device-tree node and get a
+	 * reference to the parent's node which will be balanced on reprobe or
+	 * on platform-device release.
+	 */
+	of_node_put(pdev->dev.of_node);
+	pdev->dev.of_node = of_node_get(pdev->dev.parent->of_node);
+
 	mtherm->tz_device = devm_thermal_zone_of_sensor_register(&pdev->dev, 0,
 				mtherm, &max77620_thermal_ops);
 	if (IS_ERR(mtherm->tz_device)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/thermal/thermal_hwmon.c linux-libre-4.9.52-gnu/drivers/thermal/thermal_hwmon.c
--- linux-libre-4.9-gnu/drivers/thermal/thermal_hwmon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/thermal/thermal_hwmon.c	2017-09-27 08:40:05.000000000 -0400
@@ -98,7 +98,7 @@ temp_crit_show(struct device *dev, struc
 	int temperature;
 	int ret;
 
-	ret = tz->ops->get_trip_temp(tz, 0, &temperature);
+	ret = tz->ops->get_crit_temp(tz, &temperature);
 	if (ret)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/n_hdlc.c linux-libre-4.9.52-gnu/drivers/tty/n_hdlc.c
--- linux-libre-4.9-gnu/drivers/tty/n_hdlc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/n_hdlc.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,7 +114,7 @@
 #define DEFAULT_TX_BUF_COUNT 3
 
 struct n_hdlc_buf {
-	struct n_hdlc_buf *link;
+	struct list_head  list_item;
 	int		  count;
 	char		  buf[1];
 };
@@ -122,8 +122,7 @@ struct n_hdlc_buf {
 #define	N_HDLC_BUF_SIZE	(sizeof(struct n_hdlc_buf) + maxframe)
 
 struct n_hdlc_buf_list {
-	struct n_hdlc_buf *head;
-	struct n_hdlc_buf *tail;
+	struct list_head  list;
 	int		  count;
 	spinlock_t	  spinlock;
 };
@@ -136,7 +135,6 @@ struct n_hdlc_buf_list {
  * @backup_tty - TTY to use if tty gets closed
  * @tbusy - reentrancy flag for tx wakeup code
  * @woke_up - FIXME: describe this field
- * @tbuf - currently transmitting tx buffer
  * @tx_buf_list - list of pending transmit frame buffers
  * @rx_buf_list - list of received frame buffers
  * @tx_free_buf_list - list unused transmit frame buffers
@@ -149,7 +147,6 @@ struct n_hdlc {
 	struct tty_struct	*backup_tty;
 	int			tbusy;
 	int			woke_up;
-	struct n_hdlc_buf	*tbuf;
 	struct n_hdlc_buf_list	tx_buf_list;
 	struct n_hdlc_buf_list	rx_buf_list;
 	struct n_hdlc_buf_list	tx_free_buf_list;
@@ -159,6 +156,8 @@ struct n_hdlc {
 /*
  * HDLC buffer list manipulation functions
  */
+static void n_hdlc_buf_return(struct n_hdlc_buf_list *buf_list,
+						struct n_hdlc_buf *buf);
 static void n_hdlc_buf_put(struct n_hdlc_buf_list *list,
 			   struct n_hdlc_buf *buf);
 static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *list);
@@ -208,16 +207,9 @@ static void flush_tx_queue(struct tty_st
 {
 	struct n_hdlc *n_hdlc = tty2n_hdlc(tty);
 	struct n_hdlc_buf *buf;
-	unsigned long flags;
 
 	while ((buf = n_hdlc_buf_get(&n_hdlc->tx_buf_list)))
 		n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, buf);
- 	spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock, flags);
-	if (n_hdlc->tbuf) {
-		n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, n_hdlc->tbuf);
-		n_hdlc->tbuf = NULL;
-	}
-	spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
 }
 
 static struct tty_ldisc_ops n_hdlc_ldisc = {
@@ -283,7 +275,6 @@ static void n_hdlc_release(struct n_hdlc
 		} else
 			break;
 	}
-	kfree(n_hdlc->tbuf);
 	kfree(n_hdlc);
 	
 }	/* end of n_hdlc_release() */
@@ -402,13 +393,7 @@ static void n_hdlc_send_frames(struct n_
 	n_hdlc->woke_up = 0;
 	spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags);
 
-	/* get current transmit buffer or get new transmit */
-	/* buffer from list of pending transmit buffers */
-		
-	tbuf = n_hdlc->tbuf;
-	if (!tbuf)
-		tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);
-		
+	tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);
 	while (tbuf) {
 		if (debuglevel >= DEBUG_LEVEL_INFO)	
 			printk("%s(%d)sending frame %p, count=%d\n",
@@ -420,7 +405,7 @@ static void n_hdlc_send_frames(struct n_
 
 		/* rollback was possible and has been done */
 		if (actual == -ERESTARTSYS) {
-			n_hdlc->tbuf = tbuf;
+			n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);
 			break;
 		}
 		/* if transmit error, throw frame away by */
@@ -435,10 +420,7 @@ static void n_hdlc_send_frames(struct n_
 					
 			/* free current transmit buffer */
 			n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, tbuf);
-			
-			/* this tx buffer is done */
-			n_hdlc->tbuf = NULL;
-			
+
 			/* wait up sleeping writers */
 			wake_up_interruptible(&tty->write_wait);
 	
@@ -448,10 +430,12 @@ static void n_hdlc_send_frames(struct n_
 			if (debuglevel >= DEBUG_LEVEL_INFO)	
 				printk("%s(%d)frame %p pending\n",
 					__FILE__,__LINE__,tbuf);
-					
-			/* buffer not accepted by driver */
-			/* set this buffer as pending buffer */
-			n_hdlc->tbuf = tbuf;
+
+			/*
+			 * the buffer was not accepted by driver,
+			 * return it back into tx queue
+			 */
+			n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);
 			break;
 		}
 	}
@@ -749,7 +733,8 @@ static int n_hdlc_tty_ioctl(struct tty_s
 	int error = 0;
 	int count;
 	unsigned long flags;
-	
+	struct n_hdlc_buf *buf = NULL;
+
 	if (debuglevel >= DEBUG_LEVEL_INFO)	
 		printk("%s(%d)n_hdlc_tty_ioctl() called %d\n",
 			__FILE__,__LINE__,cmd);
@@ -763,8 +748,10 @@ static int n_hdlc_tty_ioctl(struct tty_s
 		/* report count of read data available */
 		/* in next available frame (if any) */
 		spin_lock_irqsave(&n_hdlc->rx_buf_list.spinlock,flags);
-		if (n_hdlc->rx_buf_list.head)
-			count = n_hdlc->rx_buf_list.head->count;
+		buf = list_first_entry_or_null(&n_hdlc->rx_buf_list.list,
+						struct n_hdlc_buf, list_item);
+		if (buf)
+			count = buf->count;
 		else
 			count = 0;
 		spin_unlock_irqrestore(&n_hdlc->rx_buf_list.spinlock,flags);
@@ -776,8 +763,10 @@ static int n_hdlc_tty_ioctl(struct tty_s
 		count = tty_chars_in_buffer(tty);
 		/* add size of next output frame in queue */
 		spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock,flags);
-		if (n_hdlc->tx_buf_list.head)
-			count += n_hdlc->tx_buf_list.head->count;
+		buf = list_first_entry_or_null(&n_hdlc->tx_buf_list.list,
+						struct n_hdlc_buf, list_item);
+		if (buf)
+			count += buf->count;
 		spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock,flags);
 		error = put_user(count, (int __user *)arg);
 		break;
@@ -825,14 +814,14 @@ static unsigned int n_hdlc_tty_poll(stru
 		poll_wait(filp, &tty->write_wait, wait);
 
 		/* set bits for operations that won't block */
-		if (n_hdlc->rx_buf_list.head)
+		if (!list_empty(&n_hdlc->rx_buf_list.list))
 			mask |= POLLIN | POLLRDNORM;	/* readable */
 		if (test_bit(TTY_OTHER_CLOSED, &tty->flags))
 			mask |= POLLHUP;
 		if (tty_hung_up_p(filp))
 			mask |= POLLHUP;
 		if (!tty_is_writelocked(tty) &&
-				n_hdlc->tx_free_buf_list.head)
+				!list_empty(&n_hdlc->tx_free_buf_list.list))
 			mask |= POLLOUT | POLLWRNORM;	/* writable */
 	}
 	return mask;
@@ -856,7 +845,12 @@ static struct n_hdlc *n_hdlc_alloc(void)
 	spin_lock_init(&n_hdlc->tx_free_buf_list.spinlock);
 	spin_lock_init(&n_hdlc->rx_buf_list.spinlock);
 	spin_lock_init(&n_hdlc->tx_buf_list.spinlock);
-	
+
+	INIT_LIST_HEAD(&n_hdlc->rx_free_buf_list.list);
+	INIT_LIST_HEAD(&n_hdlc->tx_free_buf_list.list);
+	INIT_LIST_HEAD(&n_hdlc->rx_buf_list.list);
+	INIT_LIST_HEAD(&n_hdlc->tx_buf_list.list);
+
 	/* allocate free rx buffer list */
 	for(i=0;i<DEFAULT_RX_BUF_COUNT;i++) {
 		buf = kmalloc(N_HDLC_BUF_SIZE, GFP_KERNEL);
@@ -884,53 +878,65 @@ static struct n_hdlc *n_hdlc_alloc(void)
 }	/* end of n_hdlc_alloc() */
 
 /**
+ * n_hdlc_buf_return - put the HDLC buffer after the head of the specified list
+ * @buf_list - pointer to the buffer list
+ * @buf - pointer to the buffer
+ */
+static void n_hdlc_buf_return(struct n_hdlc_buf_list *buf_list,
+						struct n_hdlc_buf *buf)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&buf_list->spinlock, flags);
+
+	list_add(&buf->list_item, &buf_list->list);
+	buf_list->count++;
+
+	spin_unlock_irqrestore(&buf_list->spinlock, flags);
+}
+
+/**
  * n_hdlc_buf_put - add specified HDLC buffer to tail of specified list
- * @list - pointer to buffer list
+ * @buf_list - pointer to buffer list
  * @buf	- pointer to buffer
  */
-static void n_hdlc_buf_put(struct n_hdlc_buf_list *list,
+static void n_hdlc_buf_put(struct n_hdlc_buf_list *buf_list,
 			   struct n_hdlc_buf *buf)
 {
 	unsigned long flags;
-	spin_lock_irqsave(&list->spinlock,flags);
-	
-	buf->link=NULL;
-	if (list->tail)
-		list->tail->link = buf;
-	else
-		list->head = buf;
-	list->tail = buf;
-	(list->count)++;
-	
-	spin_unlock_irqrestore(&list->spinlock,flags);
-	
+
+	spin_lock_irqsave(&buf_list->spinlock, flags);
+
+	list_add_tail(&buf->list_item, &buf_list->list);
+	buf_list->count++;
+
+	spin_unlock_irqrestore(&buf_list->spinlock, flags);
 }	/* end of n_hdlc_buf_put() */
 
 /**
  * n_hdlc_buf_get - remove and return an HDLC buffer from list
- * @list - pointer to HDLC buffer list
+ * @buf_list - pointer to HDLC buffer list
  * 
  * Remove and return an HDLC buffer from the head of the specified HDLC buffer
  * list.
  * Returns a pointer to HDLC buffer if available, otherwise %NULL.
  */
-static struct n_hdlc_buf* n_hdlc_buf_get(struct n_hdlc_buf_list *list)
+static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *buf_list)
 {
 	unsigned long flags;
 	struct n_hdlc_buf *buf;
-	spin_lock_irqsave(&list->spinlock,flags);
-	
-	buf = list->head;
+
+	spin_lock_irqsave(&buf_list->spinlock, flags);
+
+	buf = list_first_entry_or_null(&buf_list->list,
+						struct n_hdlc_buf, list_item);
 	if (buf) {
-		list->head = buf->link;
-		(list->count)--;
+		list_del(&buf->list_item);
+		buf_list->count--;
 	}
-	if (!list->head)
-		list->tail = NULL;
-	
-	spin_unlock_irqrestore(&list->spinlock,flags);
+
+	spin_unlock_irqrestore(&buf_list->spinlock, flags);
 	return buf;
-	
 }	/* end of n_hdlc_buf_get() */
 
 static char hdlc_banner[] __initdata =
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/pty.c linux-libre-4.9.52-gnu/drivers/tty/pty.c
--- linux-libre-4.9-gnu/drivers/tty/pty.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/pty.c	2017-09-27 08:40:05.000000000 -0400
@@ -216,16 +216,11 @@ static int pty_signal(struct tty_struct
 static void pty_flush_buffer(struct tty_struct *tty)
 {
 	struct tty_struct *to = tty->link;
-	struct tty_ldisc *ld;
 
 	if (!to)
 		return;
 
-	ld = tty_ldisc_ref(to);
-	tty_buffer_flush(to, ld);
-	if (ld)
-		tty_ldisc_deref(ld);
-
+	tty_buffer_flush(to, NULL);
 	if (to->packet) {
 		spin_lock_irq(&tty->ctrl_lock);
 		tty->ctrl_status |= TIOCPKT_FLUSHWRITE;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_core.c linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_core.c
--- linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -675,7 +675,7 @@ static struct console univ8250_console =
 	.device		= uart_console_device,
 	.setup		= univ8250_console_setup,
 	.match		= univ8250_console_match,
-	.flags		= CON_PRINTBUFFER | CON_ANYTIME | CON_CONSDEV,
+	.flags		= CON_PRINTBUFFER | CON_ANYTIME,
 	.index		= -1,
 	.data		= &serial8250_reg,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_omap.c linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_omap.c
--- linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_omap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_omap.c	2017-09-27 08:40:05.000000000 -0400
@@ -1075,15 +1075,15 @@ static int omap8250_no_handle_irq(struct
 }
 
 static const u8 am3352_habit = OMAP_DMA_TX_KICK | UART_ERRATA_CLOCK_DISABLE;
-static const u8 am4372_habit = UART_ERRATA_CLOCK_DISABLE;
+static const u8 dra742_habit = UART_ERRATA_CLOCK_DISABLE;
 
 static const struct of_device_id omap8250_dt_ids[] = {
 	{ .compatible = "ti,omap2-uart" },
 	{ .compatible = "ti,omap3-uart" },
 	{ .compatible = "ti,omap4-uart" },
 	{ .compatible = "ti,am3352-uart", .data = &am3352_habit, },
-	{ .compatible = "ti,am4372-uart", .data = &am4372_habit, },
-	{ .compatible = "ti,dra742-uart", .data = &am4372_habit, },
+	{ .compatible = "ti,am4372-uart", .data = &am3352_habit, },
+	{ .compatible = "ti,dra742-uart", .data = &dra742_habit, },
 	{},
 };
 MODULE_DEVICE_TABLE(of, omap8250_dt_ids);
@@ -1218,9 +1218,6 @@ static int omap8250_probe(struct platfor
 			priv->omap8250_dma.rx_size = RX_TRIGGER;
 			priv->omap8250_dma.rxconf.src_maxburst = RX_TRIGGER;
 			priv->omap8250_dma.txconf.dst_maxburst = TX_TRIGGER;
-
-			if (of_machine_is_compatible("ti,am33xx"))
-				priv->habit |= OMAP_DMA_TX_KICK;
 			/*
 			 * pause is currently not supported atleast on omap-sdma
 			 * and edma on most earlier kernels.
@@ -1240,7 +1237,8 @@ static int omap8250_probe(struct platfor
 	pm_runtime_put_autosuspend(&pdev->dev);
 	return 0;
 err:
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	return ret;
 }
@@ -1249,6 +1247,7 @@ static int omap8250_remove(struct platfo
 {
 	struct omap8250_priv *priv = platform_get_drvdata(pdev);
 
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	serial8250_unregister_port(priv->line);
@@ -1348,6 +1347,10 @@ static int omap8250_runtime_suspend(stru
 	struct omap8250_priv *priv = dev_get_drvdata(dev);
 	struct uart_8250_port *up;
 
+	/* In case runtime-pm tries this before we are setup */
+	if (!priv)
+		return 0;
+
 	up = serial8250_get_port(priv->line);
 	/*
 	 * When using 'no_console_suspend', the console UART must not be
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_pci.c linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_pci.c
--- linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -52,6 +52,7 @@ struct serial_private {
 	struct pci_dev		*dev;
 	unsigned int		nr;
 	struct pci_serial_quirk	*quirk;
+	const struct pciserial_board *board;
 	int			line[0];
 };
 
@@ -2688,6 +2689,8 @@ enum pci_board_num_t {
 	pbn_b0_4_1152000_200,
 	pbn_b0_8_1152000_200,
 
+	pbn_b0_4_1250000,
+
 	pbn_b0_2_1843200,
 	pbn_b0_4_1843200,
 
@@ -2919,6 +2922,13 @@ static struct pciserial_board pci_boards
 		.uart_offset	= 0x200,
 	},
 
+	[pbn_b0_4_1250000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 1250000,
+		.uart_offset	= 8,
+	},
+
 	[pbn_b0_2_1843200] = {
 		.flags		= FL_BASE0,
 		.num_ports	= 2,
@@ -3862,6 +3872,7 @@ pciserial_init_ports(struct pci_dev *dev
 		}
 	}
 	priv->nr = i;
+	priv->board = board;
 	return priv;
 
 err_deinit:
@@ -3872,7 +3883,7 @@ err_out:
 }
 EXPORT_SYMBOL_GPL(pciserial_init_ports);
 
-void pciserial_remove_ports(struct serial_private *priv)
+void pciserial_detach_ports(struct serial_private *priv)
 {
 	struct pci_serial_quirk *quirk;
 	int i;
@@ -3886,7 +3897,11 @@ void pciserial_remove_ports(struct seria
 	quirk = find_quirk(priv->dev);
 	if (quirk->exit)
 		quirk->exit(priv->dev);
+}
 
+void pciserial_remove_ports(struct serial_private *priv)
+{
+	pciserial_detach_ports(priv);
 	kfree(priv);
 }
 EXPORT_SYMBOL_GPL(pciserial_remove_ports);
@@ -5549,6 +5564,10 @@ static struct pci_device_id serial_pci_t
 	{ PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 },
 	{ PCI_DEVICE(0x1c29, 0x1112), .driver_data = pbn_fintek_12 },
 
+	/* MKS Tenta SCOM-080x serial cards */
+	{ PCI_DEVICE(0x1601, 0x0800), .driver_data = pbn_b0_4_1250000 },
+	{ PCI_DEVICE(0x1601, 0xa801), .driver_data = pbn_b0_4_1250000 },
+
 	/*
 	 * These entries match devices with class COMMUNICATION_SERIAL,
 	 * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
@@ -5577,7 +5596,7 @@ static pci_ers_result_t serial8250_io_er
 		return PCI_ERS_RESULT_DISCONNECT;
 
 	if (priv)
-		pciserial_suspend_ports(priv);
+		pciserial_detach_ports(priv);
 
 	pci_disable_device(dev);
 
@@ -5602,9 +5621,16 @@ static pci_ers_result_t serial8250_io_sl
 static void serial8250_io_resume(struct pci_dev *dev)
 {
 	struct serial_private *priv = pci_get_drvdata(dev);
+	struct serial_private *new;
 
-	if (priv)
-		pciserial_resume_ports(priv);
+	if (!priv)
+		return;
+
+	new = pciserial_init_ports(dev, priv->board);
+	if (!IS_ERR(new)) {
+		pci_set_drvdata(dev, new);
+		kfree(priv);
+	}
 }
 
 static const struct pci_error_handlers serial8250_err_handler = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_port.c linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_port.c
--- linux-libre-4.9-gnu/drivers/tty/serial/8250/8250_port.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/8250/8250_port.c	2017-09-27 08:40:05.000000000 -0400
@@ -1320,7 +1320,7 @@ out_lock:
 	/*
 	 * Check if the device is a Fintek F81216A
 	 */
-	if (port->type == PORT_16550A)
+	if (port->type == PORT_16550A && port->iotype == UPIO_PORT)
 		fintek_8250_probe(up);
 
 	if (up->capabilities != old_capabilities) {
@@ -1411,7 +1411,7 @@ static void __do_stop_tx_rs485(struct ua
 	 * Enable previously disabled RX interrupts.
 	 */
 	if (!(p->port.rs485.flags & SER_RS485_RX_DURING_TX)) {
-		serial8250_clear_fifos(p);
+		serial8250_clear_and_reinit_fifos(p);
 
 		p->ier |= UART_IER_RLSI | UART_IER_RDI;
 		serial_port_out(&p->port, UART_IER, p->ier);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/atmel_serial.c linux-libre-4.9.52-gnu/drivers/tty/serial/atmel_serial.c
--- linux-libre-4.9-gnu/drivers/tty/serial/atmel_serial.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/atmel_serial.c	2017-09-27 08:40:05.000000000 -0400
@@ -481,6 +481,14 @@ static void atmel_stop_tx(struct uart_po
 		/* disable PDC transmit */
 		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS);
 	}
+
+	/*
+	 * Disable the transmitter.
+	 * This is mandatory when DMA is used, otherwise the DMA buffer
+	 * is fully transmitted.
+	 */
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS);
+
 	/* Disable interrupts */
 	atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask);
 
@@ -513,6 +521,9 @@ static void atmel_start_tx(struct uart_p
 
 	/* Enable interrupts */
 	atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask);
+
+	/* re-enable the transmitter */
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
 }
 
 /*
@@ -798,6 +809,11 @@ static void atmel_complete_tx_dma(void *
 	 */
 	if (!uart_circ_empty(xmit))
 		atmel_tasklet_schedule(atmel_port, &atmel_port->tasklet_tx);
+	else if ((port->rs485.flags & SER_RS485_ENABLED) &&
+		 !(port->rs485.flags & SER_RS485_RX_DURING_TX)) {
+		/* DMA done, stop TX, start RX for RS485 */
+		atmel_start_rx(port);
+	}
 
 	spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -900,12 +916,6 @@ static void atmel_tx_dma(struct uart_por
 		desc->callback = atmel_complete_tx_dma;
 		desc->callback_param = atmel_port;
 		atmel_port->cookie_tx = dmaengine_submit(desc);
-
-	} else {
-		if (port->rs485.flags & SER_RS485_ENABLED) {
-			/* DMA done, stop TX, start RX for RS485 */
-			atmel_start_rx(port);
-		}
 	}
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@@ -1928,6 +1938,11 @@ static void atmel_flush_buffer(struct ua
 		atmel_uart_writel(port, ATMEL_PDC_TCR, 0);
 		atmel_port->pdc_tx.ofs = 0;
 	}
+	/*
+	 * in uart_flush_buffer(), the xmit circular buffer has just
+	 * been cleared, so we have to reset tx_len accordingly.
+	 */
+	atmel_port->tx_len = 0;
 }
 
 /*
@@ -2461,6 +2476,9 @@ static void atmel_console_write(struct c
 	pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN;
 	atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS);
 
+	/* Make sure that tx path is actually able to send characters */
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
+
 	uart_console_write(port, s, count, atmel_console_putchar);
 
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/efm32-uart.c linux-libre-4.9.52-gnu/drivers/tty/serial/efm32-uart.c
--- linux-libre-4.9-gnu/drivers/tty/serial/efm32-uart.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/efm32-uart.c	2017-09-27 08:40:05.000000000 -0400
@@ -27,6 +27,7 @@
 #define UARTn_FRAME		0x04
 #define UARTn_FRAME_DATABITS__MASK	0x000f
 #define UARTn_FRAME_DATABITS(n)		((n) - 3)
+#define UARTn_FRAME_PARITY__MASK	0x0300
 #define UARTn_FRAME_PARITY_NONE		0x0000
 #define UARTn_FRAME_PARITY_EVEN		0x0200
 #define UARTn_FRAME_PARITY_ODD		0x0300
@@ -572,12 +573,16 @@ static void efm32_uart_console_get_optio
 			16 * (4 + (clkdiv >> 6)));
 
 	frame = efm32_uart_read32(efm_port, UARTn_FRAME);
-	if (frame & UARTn_FRAME_PARITY_ODD)
+	switch (frame & UARTn_FRAME_PARITY__MASK) {
+	case UARTn_FRAME_PARITY_ODD:
 		*parity = 'o';
-	else if (frame & UARTn_FRAME_PARITY_EVEN)
+		break;
+	case UARTn_FRAME_PARITY_EVEN:
 		*parity = 'e';
-	else
+		break;
+	default:
 		*parity = 'n';
+	}
 
 	*bits = (frame & UARTn_FRAME_DATABITS__MASK) -
 			UARTn_FRAME_DATABITS(4) + 4;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/ifx6x60.c linux-libre-4.9.52-gnu/drivers/tty/serial/ifx6x60.c
--- linux-libre-4.9-gnu/drivers/tty/serial/ifx6x60.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/ifx6x60.c	2017-09-27 08:40:05.000000000 -0400
@@ -1381,9 +1381,9 @@ static struct spi_driver ifx_spi_driver
 static void __exit ifx_spi_exit(void)
 {
 	/* unregister */
+	spi_unregister_driver(&ifx_spi_driver);
 	tty_unregister_driver(tty_drv);
 	put_tty_driver(tty_drv);
-	spi_unregister_driver(&ifx_spi_driver);
 	unregister_reboot_notifier(&ifx_modem_reboot_notifier_block);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/msm_serial.c linux-libre-4.9.52-gnu/drivers/tty/serial/msm_serial.c
--- linux-libre-4.9-gnu/drivers/tty/serial/msm_serial.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/msm_serial.c	2017-09-27 08:40:05.000000000 -0400
@@ -1809,6 +1809,7 @@ static const struct of_device_id msm_mat
 	{ .compatible = "qcom,msm-uartdm" },
 	{}
 };
+MODULE_DEVICE_TABLE(of, msm_match_table);
 
 static struct platform_driver msm_platform_driver = {
 	.remove = msm_serial_remove,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/mxs-auart.c linux-libre-4.9.52-gnu/drivers/tty/serial/mxs-auart.c
--- linux-libre-4.9-gnu/drivers/tty/serial/mxs-auart.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/mxs-auart.c	2017-09-27 08:40:05.000000000 -0400
@@ -1085,7 +1085,7 @@ static void mxs_auart_settermios(struct
 					AUART_LINECTRL_BAUD_DIV_MAX);
 		baud_max = u->uartclk * 32 / AUART_LINECTRL_BAUD_DIV_MIN;
 		baud = uart_get_baud_rate(u, termios, old, baud_min, baud_max);
-		div = u->uartclk * 32 / baud;
+		div = DIV_ROUND_CLOSEST(u->uartclk * 32, baud);
 	}
 
 	ctrl |= AUART_LINECTRL_BAUD_DIVFRAC(div & 0x3F);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/omap-serial.c linux-libre-4.9.52-gnu/drivers/tty/serial/omap-serial.c
--- linux-libre-4.9-gnu/drivers/tty/serial/omap-serial.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/omap-serial.c	2017-09-27 08:40:05.000000000 -0400
@@ -1712,7 +1712,8 @@ static int serial_omap_probe(struct plat
 	return 0;
 
 err_add_port:
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_dont_use_autosuspend(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	pm_qos_remove_request(&up->pm_qos_request);
 	device_init_wakeup(up->dev, false);
@@ -1725,9 +1726,13 @@ static int serial_omap_remove(struct pla
 {
 	struct uart_omap_port *up = platform_get_drvdata(dev);
 
+	pm_runtime_get_sync(up->dev);
+
+	uart_remove_one_port(&serial_omap_reg, &up->port);
+
+	pm_runtime_dont_use_autosuspend(up->dev);
 	pm_runtime_put_sync(up->dev);
 	pm_runtime_disable(up->dev);
-	uart_remove_one_port(&serial_omap_reg, &up->port);
 	pm_qos_remove_request(&up->pm_qos_request);
 	device_init_wakeup(&dev->dev, false);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/samsung.c linux-libre-4.9.52-gnu/drivers/tty/serial/samsung.c
--- linux-libre-4.9-gnu/drivers/tty/serial/samsung.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/samsung.c	2017-09-27 08:40:05.000000000 -0400
@@ -906,14 +906,13 @@ static int s3c24xx_serial_request_dma(st
 		return -ENOMEM;
 	}
 
-	dma->rx_addr = dma_map_single(dma->rx_chan->device->dev, dma->rx_buf,
+	dma->rx_addr = dma_map_single(p->port.dev, dma->rx_buf,
 				dma->rx_size, DMA_FROM_DEVICE);
 
 	spin_lock_irqsave(&p->port.lock, flags);
 
 	/* TX buffer */
-	dma->tx_addr = dma_map_single(dma->tx_chan->device->dev,
-				p->port.state->xmit.buf,
+	dma->tx_addr = dma_map_single(p->port.dev, p->port.state->xmit.buf,
 				UART_XMIT_SIZE, DMA_TO_DEVICE);
 
 	spin_unlock_irqrestore(&p->port.lock, flags);
@@ -927,7 +926,7 @@ static void s3c24xx_serial_release_dma(s
 
 	if (dma->rx_chan) {
 		dmaengine_terminate_all(dma->rx_chan);
-		dma_unmap_single(dma->rx_chan->device->dev, dma->rx_addr,
+		dma_unmap_single(p->port.dev, dma->rx_addr,
 				dma->rx_size, DMA_FROM_DEVICE);
 		kfree(dma->rx_buf);
 		dma_release_channel(dma->rx_chan);
@@ -936,7 +935,7 @@ static void s3c24xx_serial_release_dma(s
 
 	if (dma->tx_chan) {
 		dmaengine_terminate_all(dma->tx_chan);
-		dma_unmap_single(dma->tx_chan->device->dev, dma->tx_addr,
+		dma_unmap_single(p->port.dev, dma->tx_addr,
 				UART_XMIT_SIZE, DMA_TO_DEVICE);
 		dma_release_channel(dma->tx_chan);
 		dma->tx_chan = NULL;
@@ -1036,8 +1035,10 @@ static int s3c64xx_serial_startup(struct
 	if (ourport->dma) {
 		ret = s3c24xx_serial_request_dma(ourport);
 		if (ret < 0) {
-			dev_warn(port->dev, "DMA request failed\n");
-			return ret;
+			dev_warn(port->dev,
+				 "DMA request failed, DMA will not be used\n");
+			devm_kfree(port->dev, ourport->dma);
+			ourport->dma = NULL;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/sc16is7xx.c linux-libre-4.9.52-gnu/drivers/tty/serial/sc16is7xx.c
--- linux-libre-4.9-gnu/drivers/tty/serial/sc16is7xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/sc16is7xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1264,7 +1264,7 @@ static int sc16is7xx_probe(struct device
 
 	/* Setup interrupt */
 	ret = devm_request_irq(dev, irq, sc16is7xx_irq,
-			       IRQF_ONESHOT | flags, dev_name(dev), s);
+			       flags, dev_name(dev), s);
 	if (!ret)
 		return 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/serial/sh-sci.c linux-libre-4.9.52-gnu/drivers/tty/serial/sh-sci.c
--- linux-libre-4.9-gnu/drivers/tty/serial/sh-sci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/serial/sh-sci.c	2017-09-27 08:40:05.000000000 -0400
@@ -1976,11 +1976,13 @@ static int sci_startup(struct uart_port
 
 	dev_dbg(port->dev, "%s(%d)\n", __func__, port->line);
 
+	sci_request_dma(port);
+
 	ret = sci_request_irq(s);
-	if (unlikely(ret < 0))
+	if (unlikely(ret < 0)) {
+		sci_free_dma(port);
 		return ret;
-
-	sci_request_dma(port);
+	}
 
 	return 0;
 }
@@ -2012,8 +2014,8 @@ static void sci_shutdown(struct uart_por
 	}
 #endif
 
-	sci_free_dma(port);
 	sci_free_irq(s);
+	sci_free_dma(port);
 }
 
 static int sci_sck_calc(struct sci_port *s, unsigned int bps,
@@ -2364,6 +2366,10 @@ done:
 		 */
 		udelay(DIV_ROUND_UP(10 * 1000000, baud));
 	}
+	if (port->flags & UPF_HARD_FLOW) {
+		/* Refresh (Auto) RTS */
+		sci_set_mctrl(port, port->mctrl);
+	}
 
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/sysrq.c linux-libre-4.9.52-gnu/drivers/tty/sysrq.c
--- linux-libre-4.9-gnu/drivers/tty/sysrq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/sysrq.c	2017-09-27 08:40:05.000000000 -0400
@@ -946,8 +946,8 @@ static const struct input_device_id sysr
 	{
 		.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
 				INPUT_DEVICE_ID_MATCH_KEYBIT,
-		.evbit = { BIT_MASK(EV_KEY) },
-		.keybit = { BIT_MASK(KEY_LEFTALT) },
+		.evbit = { [BIT_WORD(EV_KEY)] = BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(KEY_LEFTALT)] = BIT_MASK(KEY_LEFTALT) },
 	},
 	{ },
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/tty_buffer.c linux-libre-4.9.52-gnu/drivers/tty/tty_buffer.c
--- linux-libre-4.9-gnu/drivers/tty/tty_buffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/tty_buffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -362,6 +362,32 @@ int tty_insert_flip_string_flags(struct
 EXPORT_SYMBOL(tty_insert_flip_string_flags);
 
 /**
+ *	__tty_insert_flip_char   -	Add one character to the tty buffer
+ *	@port: tty port
+ *	@ch: character
+ *	@flag: flag byte
+ *
+ *	Queue a single byte to the tty buffering, with an optional flag.
+ *	This is the slow path of tty_insert_flip_char.
+ */
+int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag)
+{
+	struct tty_buffer *tb;
+	int flags = (flag == TTY_NORMAL) ? TTYB_NORMAL : 0;
+
+	if (!__tty_buffer_request_room(port, 1, flags))
+		return 0;
+
+	tb = port->buf.tail;
+	if (~tb->flags & TTYB_NORMAL)
+		*flag_buf_ptr(tb, tb->used) = flag;
+	*char_buf_ptr(tb, tb->used++) = ch;
+
+	return 1;
+}
+EXPORT_SYMBOL(__tty_insert_flip_char);
+
+/**
  *	tty_schedule_flip	-	push characters to ldisc
  *	@port: tty port to push from
  *
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/vt/keyboard.c linux-libre-4.9.52-gnu/drivers/tty/vt/keyboard.c
--- linux-libre-4.9-gnu/drivers/tty/vt/keyboard.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/vt/keyboard.c	2017-09-27 08:40:05.000000000 -0400
@@ -982,7 +982,7 @@ static void kbd_led_trigger_activate(str
 	KBD_LED_TRIGGER((_led_bit) + 8, _name)
 
 static struct kbd_led_trigger kbd_led_triggers[] = {
-	KBD_LED_TRIGGER(VC_SCROLLOCK, "kbd-scrollock"),
+	KBD_LED_TRIGGER(VC_SCROLLOCK, "kbd-scrolllock"),
 	KBD_LED_TRIGGER(VC_NUMLOCK,   "kbd-numlock"),
 	KBD_LED_TRIGGER(VC_CAPSLOCK,  "kbd-capslock"),
 	KBD_LED_TRIGGER(VC_KANALOCK,  "kbd-kanalock"),
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/tty/vt/vt.c linux-libre-4.9.52-gnu/drivers/tty/vt/vt.c
--- linux-libre-4.9-gnu/drivers/tty/vt/vt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/tty/vt/vt.c	2017-09-27 08:40:05.000000000 -0400
@@ -2711,13 +2711,13 @@ int tioclinux(struct tty_struct *tty, un
 	 * related to the kernel should not use this.
 	 */
 			data = vt_get_shift_state();
-			ret = __put_user(data, p);
+			ret = put_user(data, p);
 			break;
 		case TIOCL_GETMOUSEREPORTING:
 			console_lock();	/* May be overkill */
 			data = mouse_reporting();
 			console_unlock();
-			ret = __put_user(data, p);
+			ret = put_user(data, p);
 			break;
 		case TIOCL_SETVESABLANK:
 			console_lock();
@@ -2726,7 +2726,7 @@ int tioclinux(struct tty_struct *tty, un
 			break;
 		case TIOCL_GETKMSGREDIRECT:
 			data = vt_get_kmsg_redirect();
-			ret = __put_user(data, p);
+			ret = put_user(data, p);
 			break;
 		case TIOCL_SETKMSGREDIRECT:
 			if (!capable(CAP_SYS_ADMIN)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/chipidea/ci.h linux-libre-4.9.52-gnu/drivers/usb/chipidea/ci.h
--- linux-libre-4.9-gnu/drivers/usb/chipidea/ci.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/chipidea/ci.h	2017-09-27 08:40:05.000000000 -0400
@@ -428,9 +428,6 @@ int hw_port_test_set(struct ci_hdrc *ci,
 
 u8 hw_port_test_get(struct ci_hdrc *ci);
 
-int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask,
-				u32 value, unsigned int timeout_ms);
-
 void ci_platform_configure(struct ci_hdrc *ci);
 
 int dbg_create_files(struct ci_hdrc *ci);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/chipidea/ci_hdrc_msm.c linux-libre-4.9.52-gnu/drivers/usb/chipidea/ci_hdrc_msm.c
--- linux-libre-4.9-gnu/drivers/usb/chipidea/ci_hdrc_msm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/chipidea/ci_hdrc_msm.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,7 +24,6 @@ static void ci_hdrc_msm_notify_event(str
 	switch (event) {
 	case CI_HDRC_CONTROLLER_RESET_EVENT:
 		dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n");
-		writel(0, USB_AHBBURST);
 		/* use AHB transactor, allow posted data writes */
 		writel(0x8, USB_AHBMODE);
 		usb_phy_init(ci->usb_phy);
@@ -47,7 +46,8 @@ static struct ci_hdrc_platform_data ci_h
 	.name			= "ci_hdrc_msm",
 	.capoffset		= DEF_CAPOFFSET,
 	.flags			= CI_HDRC_REGS_SHARED |
-				  CI_HDRC_DISABLE_STREAMING,
+				  CI_HDRC_DISABLE_STREAMING |
+				  CI_HDRC_OVERRIDE_AHB_BURST,
 
 	.notify_event		= ci_hdrc_msm_notify_event,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/chipidea/core.c linux-libre-4.9.52-gnu/drivers/usb/chipidea/core.c
--- linux-libre-4.9-gnu/drivers/usb/chipidea/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/chipidea/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -516,38 +516,6 @@ int hw_device_reset(struct ci_hdrc *ci)
 	return 0;
 }
 
-/**
- * hw_wait_reg: wait the register value
- *
- * Sometimes, it needs to wait register value before going on.
- * Eg, when switch to device mode, the vbus value should be lower
- * than OTGSC_BSV before connects to host.
- *
- * @ci: the controller
- * @reg: register index
- * @mask: mast bit
- * @value: the bit value to wait
- * @timeout_ms: timeout in millisecond
- *
- * This function returns an error code if timeout
- */
-int hw_wait_reg(struct ci_hdrc *ci, enum ci_hw_regs reg, u32 mask,
-				u32 value, unsigned int timeout_ms)
-{
-	unsigned long elapse = jiffies + msecs_to_jiffies(timeout_ms);
-
-	while (hw_read(ci, reg, mask) != value) {
-		if (time_after(jiffies, elapse)) {
-			dev_err(ci->dev, "timeout waiting for %08x in %d\n",
-					mask, reg);
-			return -ETIMEDOUT;
-		}
-		msleep(20);
-	}
-
-	return 0;
-}
-
 static irqreturn_t ci_irq(int irq, void *data)
 {
 	struct ci_hdrc *ci = data;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/chipidea/debug.c linux-libre-4.9.52-gnu/drivers/usb/chipidea/debug.c
--- linux-libre-4.9-gnu/drivers/usb/chipidea/debug.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/chipidea/debug.c	2017-09-27 08:40:05.000000000 -0400
@@ -294,7 +294,8 @@ static int ci_role_show(struct seq_file
 {
 	struct ci_hdrc *ci = s->private;
 
-	seq_printf(s, "%s\n", ci_role(ci)->name);
+	if (ci->role != CI_ROLE_END)
+		seq_printf(s, "%s\n", ci_role(ci)->name);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/chipidea/otg.c linux-libre-4.9.52-gnu/drivers/usb/chipidea/otg.c
--- linux-libre-4.9-gnu/drivers/usb/chipidea/otg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/chipidea/otg.c	2017-09-27 08:40:05.000000000 -0400
@@ -44,12 +44,15 @@ u32 hw_read_otgsc(struct ci_hdrc *ci, u3
 		else
 			val &= ~OTGSC_BSVIS;
 
-		cable->changed = false;
-
 		if (cable->state)
 			val |= OTGSC_BSV;
 		else
 			val &= ~OTGSC_BSV;
+
+		if (cable->enabled)
+			val |= OTGSC_BSVIE;
+		else
+			val &= ~OTGSC_BSVIE;
 	}
 
 	cable = &ci->platdata->id_extcon;
@@ -59,15 +62,18 @@ u32 hw_read_otgsc(struct ci_hdrc *ci, u3
 		else
 			val &= ~OTGSC_IDIS;
 
-		cable->changed = false;
-
 		if (cable->state)
 			val |= OTGSC_ID;
 		else
 			val &= ~OTGSC_ID;
+
+		if (cable->enabled)
+			val |= OTGSC_IDIE;
+		else
+			val &= ~OTGSC_IDIE;
 	}
 
-	return val;
+	return val & mask;
 }
 
 /**
@@ -77,6 +83,36 @@ u32 hw_read_otgsc(struct ci_hdrc *ci, u3
  */
 void hw_write_otgsc(struct ci_hdrc *ci, u32 mask, u32 data)
 {
+	struct ci_hdrc_cable *cable;
+
+	cable = &ci->platdata->vbus_extcon;
+	if (!IS_ERR(cable->edev)) {
+		if (data & mask & OTGSC_BSVIS)
+			cable->changed = false;
+
+		/* Don't enable vbus interrupt if using external notifier */
+		if (data & mask & OTGSC_BSVIE) {
+			cable->enabled = true;
+			data &= ~OTGSC_BSVIE;
+		} else if (mask & OTGSC_BSVIE) {
+			cable->enabled = false;
+		}
+	}
+
+	cable = &ci->platdata->id_extcon;
+	if (!IS_ERR(cable->edev)) {
+		if (data & mask & OTGSC_IDIS)
+			cable->changed = false;
+
+		/* Don't enable id interrupt if using external notifier */
+		if (data & mask & OTGSC_IDIE) {
+			cable->enabled = true;
+			data &= ~OTGSC_IDIE;
+		} else if (mask & OTGSC_IDIE) {
+			cable->enabled = false;
+		}
+	}
+
 	hw_write(ci, OP_OTGSC, mask | OTGSC_INT_STATUS_BITS, data);
 }
 
@@ -104,7 +140,31 @@ void ci_handle_vbus_change(struct ci_hdr
 		usb_gadget_vbus_disconnect(&ci->gadget);
 }
 
-#define CI_VBUS_STABLE_TIMEOUT_MS 5000
+/**
+ * When we switch to device mode, the vbus value should be lower
+ * than OTGSC_BSV before connecting to host.
+ *
+ * @ci: the controller
+ *
+ * This function returns an error code if timeout
+ */
+static int hw_wait_vbus_lower_bsv(struct ci_hdrc *ci)
+{
+	unsigned long elapse = jiffies + msecs_to_jiffies(5000);
+	u32 mask = OTGSC_BSV;
+
+	while (hw_read_otgsc(ci, mask)) {
+		if (time_after(jiffies, elapse)) {
+			dev_err(ci->dev, "timeout waiting for %08x in OTGSC\n",
+					mask);
+			return -ETIMEDOUT;
+		}
+		msleep(20);
+	}
+
+	return 0;
+}
+
 static void ci_handle_id_switch(struct ci_hdrc *ci)
 {
 	enum ci_role role = ci_otg_role(ci);
@@ -116,9 +176,11 @@ static void ci_handle_id_switch(struct c
 		ci_role_stop(ci);
 
 		if (role == CI_ROLE_GADGET)
-			/* wait vbus lower than OTGSC_BSV */
-			hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0,
-					CI_VBUS_STABLE_TIMEOUT_MS);
+			/*
+			 * wait vbus lower than OTGSC_BSV before connecting
+			 * to host
+			 */
+			hw_wait_vbus_lower_bsv(ci);
 
 		ci_role_start(ci, role);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/chipidea/udc.c linux-libre-4.9.52-gnu/drivers/usb/chipidea/udc.c
--- linux-libre-4.9-gnu/drivers/usb/chipidea/udc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/chipidea/udc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1987,6 +1987,7 @@ static void udc_id_switch_for_host(struc
 int ci_hdrc_gadget_init(struct ci_hdrc *ci)
 {
 	struct ci_role_driver *rdrv;
+	int ret;
 
 	if (!hw_read(ci, CAP_DCCPARAMS, DCCPARAMS_DC))
 		return -ENXIO;
@@ -1999,7 +2000,10 @@ int ci_hdrc_gadget_init(struct ci_hdrc *
 	rdrv->stop	= udc_id_switch_for_host;
 	rdrv->irq	= udc_irq;
 	rdrv->name	= "gadget";
-	ci->roles[CI_ROLE_GADGET] = rdrv;
 
-	return udc_start(ci);
+	ret = udc_start(ci);
+	if (!ret)
+		ci->roles[CI_ROLE_GADGET] = rdrv;
+
+	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/class/cdc-acm.c linux-libre-4.9.52-gnu/drivers/usb/class/cdc-acm.c
--- linux-libre-4.9-gnu/drivers/usb/class/cdc-acm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/class/cdc-acm.c	2017-09-27 08:40:05.000000000 -0400
@@ -311,6 +311,12 @@ static void acm_ctrl_irq(struct urb *urb
 		break;
 
 	case USB_CDC_NOTIFY_SERIAL_STATE:
+		if (le16_to_cpu(dr->wLength) != 2) {
+			dev_dbg(&acm->control->dev,
+				"%s - malformed serial state\n", __func__);
+			break;
+		}
+
 		newctrl = get_unaligned_le16(data);
 
 		if (!acm->clocal && (acm->ctrlin & ~newctrl & ACM_CTRL_DCD)) {
@@ -347,11 +353,10 @@ static void acm_ctrl_irq(struct urb *urb
 
 	default:
 		dev_dbg(&acm->control->dev,
-			"%s - unknown notification %d received: index %d "
-			"len %d data0 %d data1 %d\n",
+			"%s - unknown notification %d received: index %d len %d\n",
 			__func__,
-			dr->bNotificationType, dr->wIndex,
-			dr->wLength, data[0], data[1]);
+			dr->bNotificationType, dr->wIndex, dr->wLength);
+
 		break;
 	}
 exit:
@@ -1719,6 +1724,7 @@ static const struct usb_device_id acm_id
 	{ USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */
 	.driver_info = QUIRK_CONTROL_LINE_STATE, },
 	{ USB_DEVICE(0x2184, 0x001c) },	/* GW Instek AFG-2225 */
+	{ USB_DEVICE(0x2184, 0x0036) },	/* GW Instek AFG-125 */
 	{ USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
 	},
 	/* Motorola H24 HSPA module: */
@@ -1764,6 +1770,9 @@ static const struct usb_device_id acm_id
 	{ USB_DEVICE(0x1576, 0x03b1), /* Maretron USB100 */
 	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
 	},
+	{ USB_DEVICE(0xfff0, 0x0100), /* DATECS FP-2000 */
+	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
+	},
 
 	{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
 	.driver_info = CLEAR_HALT_CONDITIONS,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/class/cdc-wdm.c linux-libre-4.9.52-gnu/drivers/usb/class/cdc-wdm.c
--- linux-libre-4.9-gnu/drivers/usb/class/cdc-wdm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/class/cdc-wdm.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,7 +58,6 @@ MODULE_DEVICE_TABLE (usb, wdm_ids);
 #define WDM_SUSPENDING		8
 #define WDM_RESETTING		9
 #define WDM_OVERFLOW		10
-#define WDM_DRAIN_ON_OPEN	11
 
 #define WDM_MAX			16
 
@@ -182,7 +181,7 @@ static void wdm_in_callback(struct urb *
 				"nonzero urb status received: -ESHUTDOWN\n");
 			goto skip_error;
 		case -EPIPE:
-			dev_dbg(&desc->intf->dev,
+			dev_err(&desc->intf->dev,
 				"nonzero urb status received: -EPIPE\n");
 			break;
 		default:
@@ -210,25 +209,6 @@ static void wdm_in_callback(struct urb *
 			desc->reslength = length;
 		}
 	}
-
-	/*
-	 * Handling devices with the WDM_DRAIN_ON_OPEN flag set:
-	 * If desc->resp_count is unset, then the urb was submitted
-	 * without a prior notification.  If the device returned any
-	 * data, then this implies that it had messages queued without
-	 * notifying us.  Continue reading until that queue is flushed.
-	 */
-	if (!desc->resp_count) {
-		if (!length) {
-			/* do not propagate the expected -EPIPE */
-			desc->rerr = 0;
-			goto unlock;
-		}
-		dev_dbg(&desc->intf->dev, "got %d bytes without notification\n", length);
-		set_bit(WDM_RESPONDING, &desc->flags);
-		usb_submit_urb(desc->response, GFP_ATOMIC);
-	}
-
 skip_error:
 	set_bit(WDM_READ, &desc->flags);
 	wake_up(&desc->wait);
@@ -243,7 +223,6 @@ skip_error:
 		service_outstanding_interrupt(desc);
 	}
 
-unlock:
 	spin_unlock(&desc->iuspin);
 }
 
@@ -686,17 +665,6 @@ static int wdm_open(struct inode *inode,
 			dev_err(&desc->intf->dev,
 				"Error submitting int urb - %d\n", rv);
 			rv = usb_translate_errors(rv);
-		} else if (test_bit(WDM_DRAIN_ON_OPEN, &desc->flags)) {
-			/*
-			 * Some devices keep pending messages queued
-			 * without resending notifications.  We must
-			 * flush the message queue before we can
-			 * assume a one-to-one relationship between
-			 * notifications and messages in the queue
-			 */
-			dev_dbg(&desc->intf->dev, "draining queued data\n");
-			set_bit(WDM_RESPONDING, &desc->flags);
-			rv = usb_submit_urb(desc->response, GFP_KERNEL);
 		}
 	} else {
 		rv = 0;
@@ -803,8 +771,7 @@ static void wdm_rxwork(struct work_struc
 /* --- hotplug --- */
 
 static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor *ep,
-		u16 bufsize, int (*manage_power)(struct usb_interface *, int),
-		bool drain_on_open)
+		u16 bufsize, int (*manage_power)(struct usb_interface *, int))
 {
 	int rv = -ENOMEM;
 	struct wdm_device *desc;
@@ -891,68 +858,6 @@ static int wdm_create(struct usb_interfa
 
 	desc->manage_power = manage_power;
 
-	/*
-	 * "drain_on_open" enables a hack to work around a firmware
-	 * issue observed on network functions, in particular MBIM
-	 * functions.
-	 *
-	 * Quoting section 7 of the CDC-WMC r1.1 specification:
-	 *
-	 *  "The firmware shall interpret GetEncapsulatedResponse as a
-	 *   request to read response bytes. The firmware shall send
-	 *   the next wLength bytes from the response. The firmware
-	 *   shall allow the host to retrieve data using any number of
-	 *   GetEncapsulatedResponse requests. The firmware shall
-	 *   return a zero- length reply if there are no data bytes
-	 *   available.
-	 *
-	 *   The firmware shall send ResponseAvailable notifications
-	 *   periodically, using any appropriate algorithm, to inform
-	 *   the host that there is data available in the reply
-	 *   buffer. The firmware is allowed to send ResponseAvailable
-	 *   notifications even if there is no data available, but
-	 *   this will obviously reduce overall performance."
-	 *
-	 * These requirements, although they make equally sense, are
-	 * often not implemented by network functions. Some firmwares
-	 * will queue data indefinitely, without ever resending a
-	 * notification. The result is that the driver and firmware
-	 * loses "syncronization" if the driver ever fails to respond
-	 * to a single notification, something which easily can happen
-	 * on release(). When this happens, the driver will appear to
-	 * never receive notifications for the most current data. Each
-	 * notification will only cause a single read, which returns
-	 * the oldest data in the firmware's queue.
-	 *
-	 * The "drain_on_open" hack resolves the situation by draining
-	 * data from the firmware until none is returned, without a
-	 * prior notification.
-	 *
-	 * This will inevitably race with the firmware, risking that
-	 * we read data from the device before handling the associated
-	 * notification. To make things worse, some of the devices
-	 * needing the hack do not implement the "return zero if no
-	 * data is available" requirement either. Instead they return
-	 * an error on the subsequent read in this case.  This means
-	 * that "winning" the race can cause an unexpected EIO to
-	 * userspace.
-	 *
-	 * "winning" the race is more likely on resume() than on
-	 * open(), and the unexpected error is more harmful in the
-	 * middle of an open session. The hack is therefore only
-	 * applied on open(), and not on resume() where it logically
-	 * would be equally necessary. So we define open() as the only
-	 * driver <-> device "syncronization point".  Should we happen
-	 * to lose a notification after open(), then syncronization
-	 * will be lost until release()
-	 *
-	 * The hack should not be enabled for CDC WDM devices
-	 * conforming to the CDC-WMC r1.1 specification.  This is
-	 * ensured by setting drain_on_open to false in wdm_probe().
-	 */
-	if (drain_on_open)
-		set_bit(WDM_DRAIN_ON_OPEN, &desc->flags);
-
 	spin_lock(&wdm_device_list_lock);
 	list_add(&desc->device_list, &wdm_device_list);
 	spin_unlock(&wdm_device_list_lock);
@@ -1006,7 +911,7 @@ static int wdm_probe(struct usb_interfac
 		goto err;
 	ep = &iface->endpoint[0].desc;
 
-	rv = wdm_create(intf, ep, maxcom, &wdm_manage_power, false);
+	rv = wdm_create(intf, ep, maxcom, &wdm_manage_power);
 
 err:
 	return rv;
@@ -1038,7 +943,7 @@ struct usb_driver *usb_cdc_wdm_register(
 {
 	int rv = -EINVAL;
 
-	rv = wdm_create(intf, ep, bufsize, manage_power, true);
+	rv = wdm_create(intf, ep, bufsize, manage_power);
 	if (rv < 0)
 		goto err;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/class/usbtmc.c linux-libre-4.9.52-gnu/drivers/usb/class/usbtmc.c
--- linux-libre-4.9-gnu/drivers/usb/class/usbtmc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/class/usbtmc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1380,7 +1380,7 @@ static int usbtmc_probe(struct usb_inter
 
 	dev_dbg(&intf->dev, "%s called\n", __func__);
 
-	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
@@ -1443,6 +1443,13 @@ static int usbtmc_probe(struct usb_inter
 			break;
 		}
 	}
+
+	if (!data->bulk_out || !data->bulk_in) {
+		dev_err(&intf->dev, "bulk endpoints not found\n");
+		retcode = -ENODEV;
+		goto err_put;
+	}
+
 	/* Find int endpoint */
 	for (n = 0; n < iface_desc->desc.bNumEndpoints; n++) {
 		endpoint = &iface_desc->endpoint[n].desc;
@@ -1468,8 +1475,10 @@ static int usbtmc_probe(struct usb_inter
 	if (data->iin_ep_present) {
 		/* allocate int urb */
 		data->iin_urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!data->iin_urb)
+		if (!data->iin_urb) {
+			retcode = -ENOMEM;
 			goto error_register;
+		}
 
 		/* will reference data in int urb */
 		kref_get(&data->kref);
@@ -1477,8 +1486,10 @@ static int usbtmc_probe(struct usb_inter
 		/* allocate buffer for interrupt in */
 		data->iin_buffer = kmalloc(data->iin_wMaxPacketSize,
 					GFP_KERNEL);
-		if (!data->iin_buffer)
+		if (!data->iin_buffer) {
+			retcode = -ENOMEM;
 			goto error_register;
+		}
 
 		/* fill interrupt urb */
 		usb_fill_int_urb(data->iin_urb, data->usb_dev,
@@ -1511,6 +1522,7 @@ error_register:
 	sysfs_remove_group(&intf->dev.kobj, &capability_attr_grp);
 	sysfs_remove_group(&intf->dev.kobj, &data_attr_grp);
 	usbtmc_free_int(data);
+err_put:
 	kref_put(&data->kref, usbtmc_delete);
 	return retcode;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/config.c linux-libre-4.9.52-gnu/drivers/usb/core/config.c
--- linux-libre-4.9-gnu/drivers/usb/core/config.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/config.c	2017-09-27 08:40:05.000000000 -0400
@@ -234,6 +234,16 @@ static int usb_parse_endpoint(struct dev
 	if (ifp->desc.bNumEndpoints >= num_ep)
 		goto skip_to_next_endpoint_or_interface_descriptor;
 
+	/* Check for duplicate endpoint addresses */
+	for (i = 0; i < ifp->desc.bNumEndpoints; ++i) {
+		if (ifp->endpoint[i].desc.bEndpointAddress ==
+		    d->bEndpointAddress) {
+			dev_warn(ddev, "config %d interface %d altsetting %d has a duplicate endpoint with address 0x%X, skipping\n",
+			    cfgno, inum, asnum, d->bEndpointAddress);
+			goto skip_to_next_endpoint_or_interface_descriptor;
+		}
+	}
+
 	endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints];
 	++ifp->desc.bNumEndpoints;
 
@@ -265,6 +275,16 @@ static int usb_parse_endpoint(struct dev
 
 			/*
 			 * Adjust bInterval for quirked devices.
+			 */
+			/*
+			 * This quirk fixes bIntervals reported in ms.
+			 */
+			if (to_usb_device(ddev)->quirks &
+				USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL) {
+				n = clamp(fls(d->bInterval) + 3, i, j);
+				i = j = n;
+			}
+			/*
 			 * This quirk fixes bIntervals reported in
 			 * linear microframes.
 			 */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/devio.c linux-libre-4.9.52-gnu/drivers/usb/core/devio.c
--- linux-libre-4.9-gnu/drivers/usb/core/devio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/devio.c	2017-09-27 08:40:05.000000000 -0400
@@ -481,11 +481,11 @@ static void snoop_urb(struct usb_device
 
 	if (userurb) {		/* Async */
 		if (when == SUBMIT)
-			dev_info(&udev->dev, "userurb %p, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
 					"length %u\n",
 					userurb, ep, t, d, length);
 		else
-			dev_info(&udev->dev, "userurb %p, ep%d %s-%s, "
+			dev_info(&udev->dev, "userurb %pK, ep%d %s-%s, "
 					"actual_length %u status %d\n",
 					userurb, ep, t, d, length,
 					timeout_or_status);
@@ -629,6 +629,8 @@ static void async_completed(struct urb *
 	if (as->status < 0 && as->bulk_addr && as->status != -ECONNRESET &&
 			as->status != -ENOENT)
 		cancel_bulk_urbs(ps, as->bulk_addr);
+
+	wake_up(&ps->wait);
 	spin_unlock(&ps->lock);
 
 	if (signr) {
@@ -636,8 +638,6 @@ static void async_completed(struct urb *
 		put_pid(pid);
 		put_cred(cred);
 	}
-
-	wake_up(&ps->wait);
 }
 
 static void destroy_async(struct usb_dev_state *ps, struct list_head *list)
@@ -1905,7 +1905,7 @@ static int proc_reapurb(struct usb_dev_s
 	if (as) {
 		int retval;
 
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
@@ -1922,7 +1922,7 @@ static int proc_reapurbnonblock(struct u
 
 	as = async_getcompleted(ps);
 	if (as) {
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
@@ -2053,7 +2053,7 @@ static int proc_reapurb_compat(struct us
 	if (as) {
 		int retval;
 
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 		return retval;
@@ -2070,7 +2070,7 @@ static int proc_reapurbnonblock_compat(s
 
 	as = async_getcompleted(ps);
 	if (as) {
-		snoop(&ps->dev->dev, "reap %p\n", as->userurb);
+		snoop(&ps->dev->dev, "reap %pK\n", as->userurb);
 		retval = processcompl_compat(as, (void __user * __user *)arg);
 		free_async(as);
 	} else {
@@ -2499,7 +2499,7 @@ static long usbdev_do_ioctl(struct file
 #endif
 
 	case USBDEVFS_DISCARDURB:
-		snoop(&dev->dev, "%s: DISCARDURB %p\n", __func__, p);
+		snoop(&dev->dev, "%s: DISCARDURB %pK\n", __func__, p);
 		ret = proc_unlinkurb(ps, p);
 		break;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/driver.c linux-libre-4.9.52-gnu/drivers/usb/core/driver.c
--- linux-libre-4.9-gnu/drivers/usb/core/driver.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/driver.c	2017-09-27 08:40:05.000000000 -0400
@@ -1328,6 +1328,24 @@ static int usb_suspend_both(struct usb_d
 		 */
 		if (udev->parent && !PMSG_IS_AUTO(msg))
 			status = 0;
+
+		/*
+		 * If the device is inaccessible, don't try to resume
+		 * suspended interfaces and just return the error.
+		 */
+		if (status && status != -EBUSY) {
+			int err;
+			u16 devstat;
+
+			err = usb_get_status(udev, USB_RECIP_DEVICE, 0,
+					     &devstat);
+			if (err) {
+				dev_err(&udev->dev,
+					"Failed to suspend device, error %d\n",
+					status);
+				goto done;
+			}
+		}
 	}
 
 	/* If the suspend failed, resume interfaces that did get suspended */
@@ -1760,6 +1778,9 @@ static int autosuspend_check(struct usb_
 	int			w, i;
 	struct usb_interface	*intf;
 
+	if (udev->state == USB_STATE_NOTATTACHED)
+		return -ENODEV;
+
 	/* Fail if autosuspend is disabled, or any interfaces are in use, or
 	 * any interface drivers require remote wakeup but it isn't available.
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/file.c linux-libre-4.9.52-gnu/drivers/usb/core/file.c
--- linux-libre-4.9-gnu/drivers/usb/core/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -27,6 +27,7 @@
 #define MAX_USB_MINORS	256
 static const struct file_operations *usb_minors[MAX_USB_MINORS];
 static DECLARE_RWSEM(minor_rwsem);
+static DEFINE_MUTEX(init_usb_class_mutex);
 
 static int usb_open(struct inode *inode, struct file *file)
 {
@@ -109,8 +110,9 @@ static void release_usb_class(struct kre
 
 static void destroy_usb_class(void)
 {
-	if (usb_class)
-		kref_put(&usb_class->kref, release_usb_class);
+	mutex_lock(&init_usb_class_mutex);
+	kref_put(&usb_class->kref, release_usb_class);
+	mutex_unlock(&init_usb_class_mutex);
 }
 
 int usb_major_init(void)
@@ -171,7 +173,10 @@ int usb_register_dev(struct usb_interfac
 	if (intf->minor >= 0)
 		return -EADDRINUSE;
 
+	mutex_lock(&init_usb_class_mutex);
 	retval = init_usb_class();
+	mutex_unlock(&init_usb_class_mutex);
+
 	if (retval)
 		return retval;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/hcd.c linux-libre-4.9.52-gnu/drivers/usb/core/hcd.c
--- linux-libre-4.9-gnu/drivers/usb/core/hcd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/hcd.c	2017-09-27 08:40:05.000000000 -0400
@@ -520,8 +520,10 @@ static int rh_call_control (struct usb_h
 	 */
 	tbuf_size =  max_t(u16, sizeof(struct usb_hub_descriptor), wLength);
 	tbuf = kzalloc(tbuf_size, GFP_KERNEL);
-	if (!tbuf)
-		return -ENOMEM;
+	if (!tbuf) {
+		status = -ENOMEM;
+		goto err_alloc;
+	}
 
 	bufp = tbuf;
 
@@ -734,6 +736,7 @@ error:
 	}
 
 	kfree(tbuf);
+ err_alloc:
 
 	/* any errors get returned through the urb completion */
 	spin_lock_irq(&hcd_root_hub_lock);
@@ -1719,7 +1722,7 @@ int usb_hcd_unlink_urb (struct urb *urb,
 		if (retval == 0)
 			retval = -EINPROGRESS;
 		else if (retval != -EIDRM && retval != -EBUSY)
-			dev_dbg(&udev->dev, "hcd_unlink_urb %p fail %d\n",
+			dev_dbg(&udev->dev, "hcd_unlink_urb %pK fail %d\n",
 					urb, retval);
 		usb_put_dev(udev);
 	}
@@ -1874,7 +1877,7 @@ void usb_hcd_flush_endpoint(struct usb_d
 	/* No more submits can occur */
 	spin_lock_irq(&hcd_urb_list_lock);
 rescan:
-	list_for_each_entry (urb, &ep->urb_list, urb_list) {
+	list_for_each_entry_reverse(urb, &ep->urb_list, urb_list) {
 		int	is_in;
 
 		if (urb->unlinked)
@@ -1886,7 +1889,7 @@ rescan:
 		/* kick hcd */
 		unlink1(hcd, urb, -ESHUTDOWN);
 		dev_dbg (hcd->self.controller,
-			"shutdown urb %p ep%d%s%s\n",
+			"shutdown urb %pK ep%d%s%s\n",
 			urb, usb_endpoint_num(&ep->desc),
 			is_in ? "in" : "out",
 			({	char *s;
@@ -2471,6 +2474,8 @@ void usb_hc_died (struct usb_hcd *hcd)
 	}
 	if (usb_hcd_is_primary_hcd(hcd) && hcd->shared_hcd) {
 		hcd = hcd->shared_hcd;
+		clear_bit(HCD_FLAG_RH_RUNNING, &hcd->flags);
+		set_bit(HCD_FLAG_DEAD, &hcd->flags);
 		if (hcd->rh_registered) {
 			clear_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 
@@ -2532,6 +2537,7 @@ struct usb_hcd *usb_create_shared_hcd(co
 		hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
 				GFP_KERNEL);
 		if (!hcd->bandwidth_mutex) {
+			kfree(hcd->address0_mutex);
 			kfree(hcd);
 			dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
 			return NULL;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/hub.c linux-libre-4.9.52-gnu/drivers/usb/core/hub.c
--- linux-libre-4.9-gnu/drivers/usb/core/hub.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/hub.c	2017-09-27 08:40:05.000000000 -0400
@@ -101,6 +101,7 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rws
 
 static void hub_release(struct kref *kref);
 static int usb_reset_and_verify_device(struct usb_device *udev);
+static int hub_port_disable(struct usb_hub *hub, int port1, int set_state);
 
 static inline char *portspeed(struct usb_hub *hub, int portstatus)
 {
@@ -359,7 +360,8 @@ static void usb_set_lpm_parameters(struc
 }
 
 /* USB 2.0 spec Section 11.24.4.5 */
-static int get_hub_descriptor(struct usb_device *hdev, void *data)
+static int get_hub_descriptor(struct usb_device *hdev,
+		struct usb_hub_descriptor *desc)
 {
 	int i, ret, size;
 	unsigned dtype;
@@ -375,10 +377,18 @@ static int get_hub_descriptor(struct usb
 	for (i = 0; i < 3; i++) {
 		ret = usb_control_msg(hdev, usb_rcvctrlpipe(hdev, 0),
 			USB_REQ_GET_DESCRIPTOR, USB_DIR_IN | USB_RT_HUB,
-			dtype << 8, 0, data, size,
+			dtype << 8, 0, desc, size,
 			USB_CTRL_GET_TIMEOUT);
-		if (ret >= (USB_DT_HUB_NONVAR_SIZE + 2))
+		if (hub_is_superspeed(hdev)) {
+			if (ret == size)
+				return ret;
+		} else if (ret >= USB_DT_HUB_NONVAR_SIZE + 2) {
+			/* Make sure we have the DeviceRemovable field. */
+			size = USB_DT_HUB_NONVAR_SIZE + desc->bNbrPorts / 8 + 1;
+			if (ret < size)
+				return -EMSGSIZE;
 			return ret;
+		}
 	}
 	return -EINVAL;
 }
@@ -899,88 +909,6 @@ static int hub_set_port_link_state(struc
 }
 
 /*
- * If USB 3.0 ports are placed into the Disabled state, they will no longer
- * detect any device connects or disconnects.  This is generally not what the
- * USB core wants, since it expects a disabled port to produce a port status
- * change event when a new device connects.
- *
- * Instead, set the link state to Disabled, wait for the link to settle into
- * that state, clear any change bits, and then put the port into the RxDetect
- * state.
- */
-static int hub_usb3_port_disable(struct usb_hub *hub, int port1)
-{
-	int ret;
-	int total_time;
-	u16 portchange, portstatus;
-
-	if (!hub_is_superspeed(hub->hdev))
-		return -EINVAL;
-
-	ret = hub_port_status(hub, port1, &portstatus, &portchange);
-	if (ret < 0)
-		return ret;
-
-	/*
-	 * USB controller Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
-	 * Controller [1022:7814] will have spurious result making the following
-	 * usb 3.0 device hotplugging route to the 2.0 root hub and recognized
-	 * as high-speed device if we set the usb 3.0 port link state to
-	 * Disabled. Since it's already in USB_SS_PORT_LS_RX_DETECT state, we
-	 * check the state here to avoid the bug.
-	 */
-	if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
-				USB_SS_PORT_LS_RX_DETECT) {
-		dev_dbg(&hub->ports[port1 - 1]->dev,
-			 "Not disabling port; link state is RxDetect\n");
-		return ret;
-	}
-
-	ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED);
-	if (ret)
-		return ret;
-
-	/* Wait for the link to enter the disabled state. */
-	for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) {
-		ret = hub_port_status(hub, port1, &portstatus, &portchange);
-		if (ret < 0)
-			return ret;
-
-		if ((portstatus & USB_PORT_STAT_LINK_STATE) ==
-				USB_SS_PORT_LS_SS_DISABLED)
-			break;
-		if (total_time >= HUB_DEBOUNCE_TIMEOUT)
-			break;
-		msleep(HUB_DEBOUNCE_STEP);
-	}
-	if (total_time >= HUB_DEBOUNCE_TIMEOUT)
-		dev_warn(&hub->ports[port1 - 1]->dev,
-				"Could not disable after %d ms\n", total_time);
-
-	return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT);
-}
-
-static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
-{
-	struct usb_port *port_dev = hub->ports[port1 - 1];
-	struct usb_device *hdev = hub->hdev;
-	int ret = 0;
-
-	if (port_dev->child && set_state)
-		usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
-	if (!hub->error) {
-		if (hub_is_superspeed(hub->hdev))
-			ret = hub_usb3_port_disable(hub, port1);
-		else
-			ret = usb_clear_port_feature(hdev, port1,
-					USB_PORT_FEAT_ENABLE);
-	}
-	if (ret && ret != -ENODEV)
-		dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
-	return ret;
-}
-
-/*
  * Disable a port and mark a logical connect-change event, so that some
  * time later hub_wq will disconnect() any existing usb_device on the port
  * and will re-enumerate if there actually is a device attached.
@@ -1145,6 +1073,9 @@ static void hub_activate(struct usb_hub
 
 		portstatus = portchange = 0;
 		status = hub_port_status(hub, port1, &portstatus, &portchange);
+		if (status)
+			goto abort;
+
 		if (udev || (portstatus & USB_PORT_STAT_CONNECTION))
 			dev_dbg(&port_dev->dev, "status %04x change %04x\n",
 					portstatus, portchange);
@@ -1277,7 +1208,7 @@ static void hub_activate(struct usb_hub
 
 	/* Scan all ports that need attention */
 	kick_hub_wq(hub);
-
+ abort:
 	if (type == HUB_INIT2 || type == HUB_INIT3) {
 		/* Allow autosuspend if it was suppressed */
  disconnected:
@@ -1389,7 +1320,7 @@ static int hub_configure(struct usb_hub
 	}
 	mutex_init(&hub->status_mutex);
 
-	hub->descriptor = kmalloc(sizeof(*hub->descriptor), GFP_KERNEL);
+	hub->descriptor = kzalloc(sizeof(*hub->descriptor), GFP_KERNEL);
 	if (!hub->descriptor) {
 		ret = -ENOMEM;
 		goto fail;
@@ -1397,13 +1328,19 @@ static int hub_configure(struct usb_hub
 
 	/* Request the entire hub descriptor.
 	 * hub->descriptor can handle USB_MAXCHILDREN ports,
-	 * but the hub can/will return fewer bytes here.
+	 * but a (non-SS) hub can/will return fewer bytes here.
 	 */
 	ret = get_hub_descriptor(hdev, hub->descriptor);
 	if (ret < 0) {
 		message = "can't read hub descriptor";
 		goto fail;
-	} else if (hub->descriptor->bNbrPorts > USB_MAXCHILDREN) {
+	}
+
+	maxchild = USB_MAXCHILDREN;
+	if (hub_is_superspeed(hdev))
+		maxchild = min_t(unsigned, maxchild, USB_SS_MAXPORTS);
+
+	if (hub->descriptor->bNbrPorts > maxchild) {
 		message = "hub has too many ports!";
 		ret = -ENODEV;
 		goto fail;
@@ -2163,6 +2100,12 @@ void usb_disconnect(struct usb_device **
 	dev_info(&udev->dev, "USB disconnect, device number %d\n",
 			udev->devnum);
 
+	/*
+	 * Ensure that the pm runtime code knows that the USB device
+	 * is in the process of being disconnected.
+	 */
+	pm_runtime_barrier(&udev->dev);
+
 	usb_lock_device(udev);
 
 	hub_disconnect_children(udev);
@@ -2731,8 +2674,15 @@ static int hub_port_wait_reset(struct us
 		if (ret < 0)
 			return ret;
 
-		/* The port state is unknown until the reset completes. */
-		if (!(portstatus & USB_PORT_STAT_RESET))
+		/*
+		 * The port state is unknown until the reset completes.
+		 *
+		 * On top of that, some chips may require additional time
+		 * to re-establish a connection after the reset is complete,
+		 * so also wait for the connection to be re-established.
+		 */
+		if (!(portstatus & USB_PORT_STAT_RESET) &&
+		    (portstatus & USB_PORT_STAT_CONNECTION))
 			break;
 
 		/* switch to the long delay after two short delay failures */
@@ -4140,6 +4090,26 @@ void usb_unlocked_enable_lpm(struct usb_
 }
 EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
 
+/* usb3 devices use U3 for disabled, make sure remote wakeup is disabled */
+static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+					  struct usb_port *port_dev)
+{
+	struct usb_device *udev = port_dev->child;
+	int ret;
+
+	if (udev && udev->port_is_suspended && udev->do_remote_wakeup) {
+		ret = hub_set_port_link_state(hub, port_dev->portnum,
+					      USB_SS_PORT_LS_U0);
+		if (!ret) {
+			msleep(USB_RESUME_TIMEOUT);
+			ret = usb_disable_remote_wakeup(udev);
+		}
+		if (ret)
+			dev_warn(&udev->dev,
+				 "Port disable: can't disable remote wake\n");
+		udev->do_remote_wakeup = 0;
+	}
+}
 
 #else	/* CONFIG_PM */
 
@@ -4147,6 +4117,9 @@ EXPORT_SYMBOL_GPL(usb_unlocked_enable_lp
 #define hub_resume		NULL
 #define hub_reset_resume	NULL
 
+static inline void hub_usb3_port_prepare_disable(struct usb_hub *hub,
+						 struct usb_port *port_dev) { }
+
 int usb_disable_lpm(struct usb_device *udev)
 {
 	return 0;
@@ -4182,6 +4155,34 @@ static int hub_handle_remote_wakeup(stru
 
 #endif	/* CONFIG_PM */
 
+/*
+ * USB-3 does not have a similar link state as USB-2 that will avoid negotiating
+ * a connection with a plugged-in cable but will signal the host when the cable
+ * is unplugged. Disable remote wake and set link state to U3 for USB-3 devices
+ */
+static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
+{
+	struct usb_port *port_dev = hub->ports[port1 - 1];
+	struct usb_device *hdev = hub->hdev;
+	int ret = 0;
+
+	if (!hub->error) {
+		if (hub_is_superspeed(hub->hdev)) {
+			hub_usb3_port_prepare_disable(hub, port_dev);
+			ret = hub_set_port_link_state(hub, port_dev->portnum,
+						      USB_SS_PORT_LS_U3);
+		} else {
+			ret = usb_clear_port_feature(hdev, port1,
+					USB_PORT_FEAT_ENABLE);
+		}
+	}
+	if (port_dev->child && set_state)
+		usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
+	if (ret && ret != -ENODEV)
+		dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
+	return ret;
+}
+
 
 /* USB 2.0 spec, 7.1.7.3 / fig 7-29:
  *
@@ -4296,7 +4297,7 @@ static void hub_set_initial_usb2_lpm_pol
 	struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent);
 	int connect_type = USB_PORT_CONNECT_TYPE_UNKNOWN;
 
-	if (!udev->usb2_hw_lpm_capable)
+	if (!udev->usb2_hw_lpm_capable || !udev->bos)
 		return;
 
 	if (hub)
@@ -4727,7 +4728,8 @@ hub_power_remaining(struct usb_hub *hub)
 static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		u16 portchange)
 {
-	int status, i;
+	int status = -ENODEV;
+	int i;
 	unsigned unit_load;
 	struct usb_device *hdev = hub->hdev;
 	struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
@@ -4931,9 +4933,10 @@ loop:
 
 done:
 	hub_port_disable(hub, port1, 1);
-	if (hcd->driver->relinquish_port && !hub->hdev->parent)
-		hcd->driver->relinquish_port(hcd, port1);
-
+	if (hcd->driver->relinquish_port && !hub->hdev->parent) {
+		if (status != -ENOTCONN && status != -ENODEV)
+			hcd->driver->relinquish_port(hcd, port1);
+	}
 }
 
 /* Handle physical or logical connection change events.
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/ledtrig-usbport.c linux-libre-4.9.52-gnu/drivers/usb/core/ledtrig-usbport.c
--- linux-libre-4.9-gnu/drivers/usb/core/ledtrig-usbport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/ledtrig-usbport.c	2017-09-27 08:40:05.000000000 -0400
@@ -74,8 +74,7 @@ static void usbport_trig_update_count(st
 
 	usbport_data->count = 0;
 	usb_for_each_dev(usbport_data, usbport_trig_usb_dev_check);
-	led_cdev->brightness_set(led_cdev,
-				 usbport_data->count ? LED_FULL : LED_OFF);
+	led_set_brightness(led_cdev, usbport_data->count ? LED_FULL : LED_OFF);
 }
 
 /***************************************
@@ -228,12 +227,12 @@ static int usbport_trig_notify(struct no
 	case USB_DEVICE_ADD:
 		usbport_trig_add_usb_dev_ports(usb_dev, usbport_data);
 		if (observed && usbport_data->count++ == 0)
-			led_cdev->brightness_set(led_cdev, LED_FULL);
+			led_set_brightness(led_cdev, LED_FULL);
 		return NOTIFY_OK;
 	case USB_DEVICE_REMOVE:
 		usbport_trig_remove_usb_dev_ports(usbport_data, usb_dev);
 		if (observed && --usbport_data->count == 0)
-			led_cdev->brightness_set(led_cdev, LED_OFF);
+			led_set_brightness(led_cdev, LED_OFF);
 		return NOTIFY_OK;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/quirks.c linux-libre-4.9.52-gnu/drivers/usb/core/quirks.c
--- linux-libre-4.9-gnu/drivers/usb/core/quirks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/quirks.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,6 +37,10 @@ static const struct usb_device_id usb_qu
 	/* CBM - Flash disk */
 	{ USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* WORLDE easy key (easykey.25) MIDI controller  */
+	{ USB_DEVICE(0x0218, 0x0401), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* HP 5300/5370C scanner */
 	{ USB_DEVICE(0x03f0, 0x0701), .driver_info =
 			USB_QUIRK_STRING_FETCH_255 },
@@ -53,8 +57,9 @@ static const struct usb_device_id usb_qu
 	/* Microsoft LifeCam-VX700 v2.0 */
 	{ USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME },
 
-	/* Logitech HD Pro Webcams C920 and C930e */
+	/* Logitech HD Pro Webcams C920, C920-C and C930e */
 	{ USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT },
+	{ USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT },
 	{ USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT },
 
 	/* Logitech ConferenceCam CC3000e */
@@ -146,6 +151,9 @@ static const struct usb_device_id usb_qu
 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */
+	{ USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Avision AV600U */
 	{ USB_DEVICE(0x0638, 0x0a13), .driver_info =
 	  USB_QUIRK_STRING_FETCH_255 },
@@ -166,6 +174,14 @@ static const struct usb_device_id usb_qu
 	/* M-Systems Flash Disk Pioneers */
 	{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Baum Vario Ultra */
+	{ USB_DEVICE(0x0904, 0x6101), .driver_info =
+			USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
+	{ USB_DEVICE(0x0904, 0x6102), .driver_info =
+			USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
+	{ USB_DEVICE(0x0904, 0x6103), .driver_info =
+			USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL },
+
 	/* Keytouch QWERTY Panel keyboard */
 	{ USB_DEVICE(0x0926, 0x3333), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
@@ -202,6 +218,9 @@ static const struct usb_device_id usb_qu
 	{ USB_DEVICE(0x1a0a, 0x0200), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Corsair Strafe RGB */
+	{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
+
 	/* Acer C120 LED Projector */
 	{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
 
@@ -211,6 +230,10 @@ static const struct usb_device_id usb_qu
 	/* Blackmagic Design UltraStudio SDI */
 	{ USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
 
+	/* Hauppauge HVR-950q */
+	{ USB_DEVICE(0x2040, 0x7200), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* INTEL VALUE SSD */
 	{ USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },
 
@@ -233,6 +256,7 @@ static const struct usb_device_id usb_am
 	{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
 	{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
+	{ USB_DEVICE(0x03f0, 0x2b4a), .driver_info = USB_QUIRK_RESET_RESUME },
 
 	/* Logitech Optical Mouse M90/M100 */
 	{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/urb.c linux-libre-4.9.52-gnu/drivers/usb/core/urb.c
--- linux-libre-4.9-gnu/drivers/usb/core/urb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/urb.c	2017-09-27 08:40:05.000000000 -0400
@@ -333,7 +333,7 @@ int usb_submit_urb(struct urb *urb, gfp_
 	if (!urb || !urb->complete)
 		return -EINVAL;
 	if (urb->hcpriv) {
-		WARN_ONCE(1, "URB %p submitted while active\n", urb);
+		WARN_ONCE(1, "URB %pK submitted while active\n", urb);
 		return -EBUSY;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/usb-acpi.c linux-libre-4.9.52-gnu/drivers/usb/core/usb-acpi.c
--- linux-libre-4.9-gnu/drivers/usb/core/usb-acpi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/usb-acpi.c	2017-09-27 08:40:05.000000000 -0400
@@ -127,6 +127,22 @@ out:
  */
 #define USB_ACPI_LOCATION_VALID (1 << 31)
 
+static struct acpi_device *usb_acpi_find_port(struct acpi_device *parent,
+					      int raw)
+{
+	struct acpi_device *adev;
+
+	if (!parent)
+		return NULL;
+
+	list_for_each_entry(adev, &parent->children, node) {
+		if (acpi_device_adr(adev) == raw)
+			return adev;
+	}
+
+	return acpi_find_child_device(parent, raw, false);
+}
+
 static struct acpi_device *usb_acpi_find_companion(struct device *dev)
 {
 	struct usb_device *udev;
@@ -174,8 +190,10 @@ static struct acpi_device *usb_acpi_find
 			int raw;
 
 			raw = usb_hcd_find_raw_port_number(hcd, port1);
-			adev = acpi_find_child_device(ACPI_COMPANION(&udev->dev),
-					raw, false);
+
+			adev = usb_acpi_find_port(ACPI_COMPANION(&udev->dev),
+						  raw);
+
 			if (!adev)
 				return NULL;
 		} else {
@@ -186,7 +204,9 @@ static struct acpi_device *usb_acpi_find
 				return NULL;
 
 			acpi_bus_get_device(parent_handle, &adev);
-			adev = acpi_find_child_device(adev, port1, false);
+
+			adev = usb_acpi_find_port(adev, port1);
+
 			if (!adev)
 				return NULL;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/core/usb.c linux-libre-4.9.52-gnu/drivers/usb/core/usb.c
--- linux-libre-4.9-gnu/drivers/usb/core/usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/core/usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -279,6 +279,8 @@ static void usb_release_dev(struct devic
 
 	usb_destroy_configuration(udev);
 	usb_release_bos_descriptor(udev);
+	if (udev->parent)
+		of_node_put(dev->of_node);
 	usb_put_hcd(hcd);
 	kfree(udev->product);
 	kfree(udev->manufacturer);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc2/core.c linux-libre-4.9.52-gnu/drivers/usb/dwc2/core.c
--- linux-libre-4.9-gnu/drivers/usb/dwc2/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc2/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -455,7 +455,7 @@ static void dwc2_clear_force_mode(struct
 	dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
 
 	if (dwc2_iddig_filter_enabled(hsotg))
-		usleep_range(100000, 110000);
+		msleep(100);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc2/gadget.c linux-libre-4.9.52-gnu/drivers/usb/dwc2/gadget.c
--- linux-libre-4.9-gnu/drivers/usb/dwc2/gadget.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc2/gadget.c	2017-09-27 08:40:05.000000000 -0400
@@ -2532,7 +2532,7 @@ void dwc2_hsotg_core_init_disconnected(s
 	/* keep other bits untouched (so e.g. forced modes are not lost) */
 	usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
 	usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP |
-		GUSBCFG_HNPCAP);
+		GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK);
 
 	/* set the PLL on, remove the HNP/SRP and set the PHY */
 	val = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
@@ -3403,7 +3403,7 @@ static void dwc2_hsotg_init(struct dwc2_
 	/* keep other bits untouched (so e.g. forced modes are not lost) */
 	usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
 	usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP |
-		GUSBCFG_HNPCAP);
+		GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK);
 
 	/* set the PLL on, remove the HNP/SRP and set the PHY */
 	trdtim = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/core.h linux-libre-4.9.52-gnu/drivers/usb/dwc3/core.h
--- linux-libre-4.9-gnu/drivers/usb/dwc3/core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/core.h	2017-09-27 08:40:05.000000000 -0400
@@ -43,9 +43,7 @@
 #define DWC3_XHCI_RESOURCES_NUM	2
 
 #define DWC3_SCRATCHBUF_SIZE	4096	/* each buffer is assumed to be 4KiB */
-#define DWC3_EVENT_SIZE		4	/* bytes */
-#define DWC3_EVENT_MAX_NUM	64	/* 2 events/endpoint */
-#define DWC3_EVENT_BUFFERS_SIZE	(DWC3_EVENT_SIZE * DWC3_EVENT_MAX_NUM)
+#define DWC3_EVENT_BUFFERS_SIZE	4096
 #define DWC3_EVENT_TYPE_MASK	0xfe
 
 #define DWC3_EVENT_TYPE_DEV	0
@@ -303,9 +301,8 @@
 #define DWC3_DCFG_SUPERSPEED_PLUS (5 << 0)  /* DWC_usb31 only */
 #define DWC3_DCFG_SUPERSPEED	(4 << 0)
 #define DWC3_DCFG_HIGHSPEED	(0 << 0)
-#define DWC3_DCFG_FULLSPEED2	(1 << 0)
+#define DWC3_DCFG_FULLSPEED	(1 << 0)
 #define DWC3_DCFG_LOWSPEED	(2 << 0)
-#define DWC3_DCFG_FULLSPEED1	(3 << 0)
 
 #define DWC3_DCFG_NUMP_SHIFT	17
 #define DWC3_DCFG_NUMP(n)	(((n) >> DWC3_DCFG_NUMP_SHIFT) & 0x1f)
@@ -397,9 +394,8 @@
 #define DWC3_DSTS_SUPERSPEED_PLUS	(5 << 0) /* DWC_usb31 only */
 #define DWC3_DSTS_SUPERSPEED		(4 << 0)
 #define DWC3_DSTS_HIGHSPEED		(0 << 0)
-#define DWC3_DSTS_FULLSPEED2		(1 << 0)
+#define DWC3_DSTS_FULLSPEED		(1 << 0)
 #define DWC3_DSTS_LOWSPEED		(2 << 0)
-#define DWC3_DSTS_FULLSPEED1		(3 << 0)
 
 /* Device Generic Command Register */
 #define DWC3_DGCMD_SET_LMP		0x01
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-exynos.c linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-exynos.c
--- linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-exynos.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-exynos.c	2017-09-27 08:40:05.000000000 -0400
@@ -148,7 +148,8 @@ static int dwc3_exynos_probe(struct plat
 		exynos->axius_clk = devm_clk_get(dev, "usbdrd30_axius_clk");
 		if (IS_ERR(exynos->axius_clk)) {
 			dev_err(dev, "no AXI UpScaler clk specified\n");
-			return -ENODEV;
+			ret = -ENODEV;
+			goto axius_clk_err;
 		}
 		clk_prepare_enable(exynos->axius_clk);
 	} else {
@@ -206,6 +207,7 @@ err3:
 	regulator_disable(exynos->vdd33);
 err2:
 	clk_disable_unprepare(exynos->axius_clk);
+axius_clk_err:
 	clk_disable_unprepare(exynos->susp_clk);
 	clk_disable_unprepare(exynos->clk);
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-omap.c linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-omap.c
--- linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-omap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-omap.c	2017-09-27 08:40:05.000000000 -0400
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/dwc3-omap.h>
@@ -249,6 +250,7 @@ static void dwc3_omap_set_mailbox(struct
 		val = dwc3_omap_read_utmi_ctrl(omap);
 		val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG;
 		dwc3_omap_write_utmi_ctrl(omap, val);
+		break;
 
 	case OMAP_DWC3_VBUS_OFF:
 		val = dwc3_omap_read_utmi_ctrl(omap);
@@ -510,7 +512,7 @@ static int dwc3_omap_probe(struct platfo
 
 	/* check the DMA Status */
 	reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
-
+	irq_set_status_flags(omap->irq, IRQ_NOAUTOEN);
 	ret = devm_request_threaded_irq(dev, omap->irq, dwc3_omap_interrupt,
 					dwc3_omap_interrupt_thread, IRQF_SHARED,
 					"dwc3-omap", omap);
@@ -531,7 +533,7 @@ static int dwc3_omap_probe(struct platfo
 	}
 
 	dwc3_omap_enable_irqs(omap);
-
+	enable_irq(omap->irq);
 	return 0;
 
 err2:
@@ -552,6 +554,7 @@ static int dwc3_omap_remove(struct platf
 	extcon_unregister_notifier(omap->edev, EXTCON_USB, &omap->vbus_nb);
 	extcon_unregister_notifier(omap->edev, EXTCON_USB_HOST, &omap->id_nb);
 	dwc3_omap_disable_irqs(omap);
+	disable_irq(omap->irq);
 	of_platform_depopulate(omap->dev);
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-pci.c linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-pci.c
--- linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -38,6 +38,7 @@
 #define PCI_DEVICE_ID_INTEL_BXT_M		0x1aaa
 #define PCI_DEVICE_ID_INTEL_APL			0x5aaa
 #define PCI_DEVICE_ID_INTEL_KBP			0xa2b0
+#define PCI_DEVICE_ID_INTEL_GLK			0x31aa
 
 static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
 static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
@@ -81,7 +82,7 @@ static int dwc3_pci_quirks(struct pci_de
 		int ret;
 
 		struct property_entry properties[] = {
-			PROPERTY_ENTRY_STRING("dr-mode", "peripheral"),
+			PROPERTY_ENTRY_STRING("dr_mode", "peripheral"),
 			{ }
 		};
 
@@ -229,6 +230,7 @@ static const struct pci_device_id dwc3_p
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT_M), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBP), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
 	{  }	/* Terminating Entry */
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-st.c linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-st.c
--- linux-libre-4.9-gnu/drivers/usb/dwc3/dwc3-st.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/dwc3-st.c	2017-09-27 08:40:05.000000000 -0400
@@ -231,7 +231,7 @@ static int st_dwc3_probe(struct platform
 
 	dwc3_data->syscfg_reg_off = res->start;
 
-	dev_vdbg(&pdev->dev, "glue-logic addr 0x%p, syscfg-reg offset 0x%x\n",
+	dev_vdbg(&pdev->dev, "glue-logic addr 0x%pK, syscfg-reg offset 0x%x\n",
 		 dwc3_data->glue_base, dwc3_data->syscfg_reg_off);
 
 	dwc3_data->rstc_pwrdn =
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/ep0.c linux-libre-4.9.52-gnu/drivers/usb/dwc3/ep0.c
--- linux-libre-4.9-gnu/drivers/usb/dwc3/ep0.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/ep0.c	2017-09-27 08:40:05.000000000 -0400
@@ -55,20 +55,13 @@ static const char *dwc3_ep0_state_string
 	}
 }
 
-static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
-		u32 len, u32 type, bool chain)
+static void dwc3_ep0_prepare_one_trb(struct dwc3 *dwc, u8 epnum,
+		dma_addr_t buf_dma, u32 len, u32 type, bool chain)
 {
-	struct dwc3_gadget_ep_cmd_params params;
 	struct dwc3_trb			*trb;
 	struct dwc3_ep			*dep;
 
-	int				ret;
-
 	dep = dwc->eps[epnum];
-	if (dep->flags & DWC3_EP_BUSY) {
-		dwc3_trace(trace_dwc3_ep0, "%s still busy", dep->name);
-		return 0;
-	}
 
 	trb = &dwc->ep0_trb[dep->trb_enqueue];
 
@@ -89,15 +82,25 @@ static int dwc3_ep0_start_trans(struct d
 		trb->ctrl |= (DWC3_TRB_CTRL_IOC
 				| DWC3_TRB_CTRL_LST);
 
-	if (chain)
+	trace_dwc3_prepare_trb(dep, trb);
+}
+
+static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum)
+{
+	struct dwc3_gadget_ep_cmd_params params;
+	struct dwc3_ep			*dep;
+	int				ret;
+
+	dep = dwc->eps[epnum];
+	if (dep->flags & DWC3_EP_BUSY) {
+		dwc3_trace(trace_dwc3_ep0, "%s still busy", dep->name);
 		return 0;
+	}
 
 	memset(&params, 0, sizeof(params));
 	params.param0 = upper_32_bits(dwc->ep0_trb_addr);
 	params.param1 = lower_32_bits(dwc->ep0_trb_addr);
 
-	trace_dwc3_prepare_trb(dep, trb);
-
 	ret = dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_STARTTRANSFER, &params);
 	if (ret < 0) {
 		dwc3_trace(trace_dwc3_ep0, "%s STARTTRANSFER failed",
@@ -308,8 +311,9 @@ void dwc3_ep0_out_start(struct dwc3 *dwc
 {
 	int				ret;
 
-	ret = dwc3_ep0_start_trans(dwc, 0, dwc->ctrl_req_addr, 8,
+	dwc3_ep0_prepare_one_trb(dwc, 0, dwc->ctrl_req_addr, 8,
 			DWC3_TRBCTL_CONTROL_SETUP, false);
+	ret = dwc3_ep0_start_trans(dwc, 0);
 	WARN_ON(ret < 0);
 }
 
@@ -880,9 +884,9 @@ static void dwc3_ep0_complete_data(struc
 
 			dwc->ep0_next_event = DWC3_EP0_COMPLETE;
 
-			ret = dwc3_ep0_start_trans(dwc, epnum,
-					dwc->ctrl_req_addr, 0,
-					DWC3_TRBCTL_CONTROL_DATA, false);
+			dwc3_ep0_prepare_one_trb(dwc, epnum, dwc->ctrl_req_addr,
+					0, DWC3_TRBCTL_CONTROL_DATA, false);
+			ret = dwc3_ep0_start_trans(dwc, epnum);
 			WARN_ON(ret < 0);
 		}
 	}
@@ -966,9 +970,10 @@ static void __dwc3_ep0_do_control_data(s
 	req->direction = !!dep->number;
 
 	if (req->request.length == 0) {
-		ret = dwc3_ep0_start_trans(dwc, dep->number,
+		dwc3_ep0_prepare_one_trb(dwc, dep->number,
 				dwc->ctrl_req_addr, 0,
 				DWC3_TRBCTL_CONTROL_DATA, false);
+		ret = dwc3_ep0_start_trans(dwc, dep->number);
 	} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
 			&& (dep->number == 0)) {
 		u32	transfer_size = 0;
@@ -986,7 +991,7 @@ static void __dwc3_ep0_do_control_data(s
 		if (req->request.length > DWC3_EP0_BOUNCE_SIZE) {
 			transfer_size = ALIGN(req->request.length - maxpacket,
 					      maxpacket);
-			ret = dwc3_ep0_start_trans(dwc, dep->number,
+			dwc3_ep0_prepare_one_trb(dwc, dep->number,
 						   req->request.dma,
 						   transfer_size,
 						   DWC3_TRBCTL_CONTROL_DATA,
@@ -998,9 +1003,10 @@ static void __dwc3_ep0_do_control_data(s
 
 		dwc->ep0_bounced = true;
 
-		ret = dwc3_ep0_start_trans(dwc, dep->number,
+		dwc3_ep0_prepare_one_trb(dwc, dep->number,
 				dwc->ep0_bounce_addr, transfer_size,
 				DWC3_TRBCTL_CONTROL_DATA, false);
+		ret = dwc3_ep0_start_trans(dwc, dep->number);
 	} else {
 		ret = usb_gadget_map_request(&dwc->gadget, &req->request,
 				dep->number);
@@ -1009,9 +1015,10 @@ static void __dwc3_ep0_do_control_data(s
 			return;
 		}
 
-		ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,
+		dwc3_ep0_prepare_one_trb(dwc, dep->number, req->request.dma,
 				req->request.length, DWC3_TRBCTL_CONTROL_DATA,
 				false);
+		ret = dwc3_ep0_start_trans(dwc, dep->number);
 	}
 
 	WARN_ON(ret < 0);
@@ -1025,8 +1032,9 @@ static int dwc3_ep0_start_control_status
 	type = dwc->three_stage_setup ? DWC3_TRBCTL_CONTROL_STATUS3
 		: DWC3_TRBCTL_CONTROL_STATUS2;
 
-	return dwc3_ep0_start_trans(dwc, dep->number,
+	dwc3_ep0_prepare_one_trb(dwc, dep->number,
 			dwc->ctrl_req_addr, 0, type, false);
+	return dwc3_ep0_start_trans(dwc, dep->number);
 }
 
 static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/gadget.c linux-libre-4.9.52-gnu/drivers/usb/dwc3/gadget.c
--- linux-libre-4.9-gnu/drivers/usb/dwc3/gadget.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/gadget.c	2017-09-27 08:40:05.000000000 -0400
@@ -174,6 +174,7 @@ void dwc3_gadget_giveback(struct dwc3_ep
 		int status)
 {
 	struct dwc3			*dwc = dep->dwc;
+	unsigned int			unmap_after_complete = false;
 
 	req->started = false;
 	list_del(&req->list);
@@ -182,11 +183,19 @@ void dwc3_gadget_giveback(struct dwc3_ep
 	if (req->request.status == -EINPROGRESS)
 		req->request.status = status;
 
-	if (dwc->ep0_bounced && dep->number == 0)
+	/*
+	 * NOTICE we don't want to unmap before calling ->complete() if we're
+	 * dealing with a bounced ep0 request. If we unmap it here, we would end
+	 * up overwritting the contents of req->buf and this could confuse the
+	 * gadget driver.
+	 */
+	if (dwc->ep0_bounced && dep->number <= 1) {
 		dwc->ep0_bounced = false;
-	else
-		usb_gadget_unmap_request(&dwc->gadget, &req->request,
-				req->direction);
+		unmap_after_complete = true;
+	} else {
+		usb_gadget_unmap_request(&dwc->gadget,
+				&req->request, req->direction);
+	}
 
 	trace_dwc3_gadget_giveback(req);
 
@@ -194,6 +203,10 @@ void dwc3_gadget_giveback(struct dwc3_ep
 	usb_gadget_giveback_request(&dep->endpoint, &req->request);
 	spin_lock(&dwc->lock);
 
+	if (unmap_after_complete)
+		usb_gadget_unmap_request(&dwc->gadget,
+				&req->request, req->direction);
+
 	if (dep->number > 1)
 		pm_runtime_put(dwc->dev);
 }
@@ -771,6 +784,9 @@ static void dwc3_prepare_one_trb(struct
 		unsigned length, unsigned chain, unsigned node)
 {
 	struct dwc3_trb		*trb;
+	struct dwc3		*dwc = dep->dwc;
+	struct usb_gadget	*gadget = &dwc->gadget;
+	enum usb_device_speed	speed = gadget->speed;
 
 	dwc3_trace(trace_dwc3_gadget, "%s: req %p dma %08llx length %d%s",
 			dep->name, req, (unsigned long long) dma,
@@ -798,10 +814,16 @@ static void dwc3_prepare_one_trb(struct
 		break;
 
 	case USB_ENDPOINT_XFER_ISOC:
-		if (!node)
+		if (!node) {
 			trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS_FIRST;
-		else
+
+			if (speed == USB_SPEED_HIGH) {
+				struct usb_ep *ep = &dep->endpoint;
+				trb->size |= DWC3_TRB_SIZE_PCM1(ep->mult - 1);
+			}
+		} else {
 			trb->ctrl = DWC3_TRBCTL_ISOCHRONOUS;
+		}
 
 		/* always enable Interrupt on Missed ISOC */
 		trb->ctrl |= DWC3_TRB_CTRL_ISP_IMI;
@@ -1047,9 +1069,9 @@ static int __dwc3_gadget_ep_queue(struct
 		return -ESHUTDOWN;
 	}
 
-	if (WARN(req->dep != dep, "request %p belongs to '%s'\n",
+	if (WARN(req->dep != dep, "request %pK belongs to '%s'\n",
 				&req->request, req->dep->name)) {
-		dwc3_trace(trace_dwc3_gadget, "request %p belongs to '%s'",
+		dwc3_trace(trace_dwc3_gadget, "request %pK belongs to '%s'",
 				&req->request, req->dep->name);
 		return -EINVAL;
 	}
@@ -1190,7 +1212,7 @@ static int dwc3_gadget_ep_dequeue(struct
 			dwc3_stop_active_transfer(dwc, dep->number, true);
 			goto out1;
 		}
-		dev_err(dwc->dev, "request %p was not queued to %s\n",
+		dev_err(dwc->dev, "request %pK was not queued to %s\n",
 				request, ep->name);
 		ret = -EINVAL;
 		goto out0;
@@ -1225,6 +1247,9 @@ int __dwc3_gadget_ep_set_halt(struct dwc
 		unsigned transfer_in_flight;
 		unsigned started;
 
+		if (dep->flags & DWC3_EP_STALL)
+			return 0;
+
 		if (dep->number > 1)
 			trb = dwc3_ep_prev_trb(dep, dep->trb_enqueue);
 		else
@@ -1249,6 +1274,8 @@ int __dwc3_gadget_ep_set_halt(struct dwc
 		else
 			dep->flags |= DWC3_EP_STALL;
 	} else {
+		if (!(dep->flags & DWC3_EP_STALL))
+			return 0;
 
 		ret = dwc3_send_clear_stall_ep_cmd(dep);
 		if (ret)
@@ -1597,7 +1624,7 @@ static int __dwc3_gadget_start(struct dw
 			reg |= DWC3_DCFG_LOWSPEED;
 			break;
 		case USB_SPEED_FULL:
-			reg |= DWC3_DCFG_FULLSPEED1;
+			reg |= DWC3_DCFG_FULLSPEED;
 			break;
 		case USB_SPEED_HIGH:
 			reg |= DWC3_DCFG_HIGHSPEED;
@@ -2456,8 +2483,7 @@ static void dwc3_gadget_conndone_interru
 		dwc->gadget.ep0->maxpacket = 64;
 		dwc->gadget.speed = USB_SPEED_HIGH;
 		break;
-	case DWC3_DSTS_FULLSPEED2:
-	case DWC3_DSTS_FULLSPEED1:
+	case DWC3_DSTS_FULLSPEED:
 		dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(64);
 		dwc->gadget.ep0->maxpacket = 64;
 		dwc->gadget.speed = USB_SPEED_FULL;
@@ -2830,6 +2856,15 @@ static irqreturn_t dwc3_check_event_buf(
 		return IRQ_HANDLED;
 	}
 
+	/*
+	 * With PCIe legacy interrupt, test shows that top-half irq handler can
+	 * be called again after HW interrupt deassertion. Check if bottom-half
+	 * irq event handler completes before caching new event to prevent
+	 * losing events.
+	 */
+	if (evt->flags & DWC3_EVENT_PENDING)
+		return IRQ_HANDLED;
+
 	count = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(0));
 	count &= DWC3_GEVNTCOUNT_MASK;
 	if (!count)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/gadget.h linux-libre-4.9.52-gnu/drivers/usb/dwc3/gadget.h
--- linux-libre-4.9-gnu/drivers/usb/dwc3/gadget.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/gadget.h	2017-09-27 08:40:05.000000000 -0400
@@ -28,23 +28,23 @@ struct dwc3;
 #define gadget_to_dwc(g)	(container_of(g, struct dwc3, gadget))
 
 /* DEPCFG parameter 1 */
-#define DWC3_DEPCFG_INT_NUM(n)		((n) << 0)
+#define DWC3_DEPCFG_INT_NUM(n)		(((n) & 0x1f) << 0)
 #define DWC3_DEPCFG_XFER_COMPLETE_EN	(1 << 8)
 #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN	(1 << 9)
 #define DWC3_DEPCFG_XFER_NOT_READY_EN	(1 << 10)
 #define DWC3_DEPCFG_FIFO_ERROR_EN	(1 << 11)
 #define DWC3_DEPCFG_STREAM_EVENT_EN	(1 << 13)
-#define DWC3_DEPCFG_BINTERVAL_M1(n)	((n) << 16)
+#define DWC3_DEPCFG_BINTERVAL_M1(n)	(((n) & 0xff) << 16)
 #define DWC3_DEPCFG_STREAM_CAPABLE	(1 << 24)
-#define DWC3_DEPCFG_EP_NUMBER(n)	((n) << 25)
+#define DWC3_DEPCFG_EP_NUMBER(n)	(((n) & 0x1f) << 25)
 #define DWC3_DEPCFG_BULK_BASED		(1 << 30)
 #define DWC3_DEPCFG_FIFO_BASED		(1 << 31)
 
 /* DEPCFG parameter 0 */
-#define DWC3_DEPCFG_EP_TYPE(n)		((n) << 1)
-#define DWC3_DEPCFG_MAX_PACKET_SIZE(n)	((n) << 3)
-#define DWC3_DEPCFG_FIFO_NUMBER(n)	((n) << 17)
-#define DWC3_DEPCFG_BURST_SIZE(n)	((n) << 22)
+#define DWC3_DEPCFG_EP_TYPE(n)		(((n) & 0x3) << 1)
+#define DWC3_DEPCFG_MAX_PACKET_SIZE(n)	(((n) & 0x7ff) << 3)
+#define DWC3_DEPCFG_FIFO_NUMBER(n)	(((n) & 0x1f) << 17)
+#define DWC3_DEPCFG_BURST_SIZE(n)	(((n) & 0xf) << 22)
 #define DWC3_DEPCFG_DATA_SEQ_NUM(n)	((n) << 26)
 /* This applies for core versions earlier than 1.94a */
 #define DWC3_DEPCFG_IGN_SEQ_NUM		(1 << 31)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/dwc3/host.c linux-libre-4.9.52-gnu/drivers/usb/dwc3/host.c
--- linux-libre-4.9-gnu/drivers/usb/dwc3/host.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/dwc3/host.c	2017-09-27 08:40:05.000000000 -0400
@@ -21,11 +21,12 @@
 
 int dwc3_host_init(struct dwc3 *dwc)
 {
-	struct property_entry	props[2];
+	struct property_entry	props[3];
 	struct platform_device	*xhci;
 	int			ret, irq;
 	struct resource		*res;
 	struct platform_device	*dwc3_pdev = to_platform_device(dwc->dev);
+	int			prop_idx = 0;
 
 	irq = platform_get_irq_byname(dwc3_pdev, "host");
 	if (irq == -EPROBE_DEFER)
@@ -89,8 +90,22 @@ int dwc3_host_init(struct dwc3 *dwc)
 
 	memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props));
 
-	if (dwc->usb3_lpm_capable) {
-		props[0].name = "usb3-lpm-capable";
+	if (dwc->usb3_lpm_capable)
+		props[prop_idx++].name = "usb3-lpm-capable";
+
+	/**
+	 * WORKAROUND: dwc3 revisions <=3.00a have a limitation
+	 * where Port Disable command doesn't work.
+	 *
+	 * The suggested workaround is that we avoid Port Disable
+	 * completely.
+	 *
+	 * This following flag tells XHCI to do just that.
+	 */
+	if (dwc->revision <= DWC3_REVISION_300A)
+		props[prop_idx++].name = "quirk-broken-port-ped";
+
+	if (prop_idx) {
 		ret = platform_device_add_properties(xhci, props);
 		if (ret) {
 			dev_err(dwc->dev, "failed to add properties to xHCI\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/composite.c linux-libre-4.9.52-gnu/drivers/usb/gadget/composite.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/composite.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/composite.c	2017-09-27 08:40:05.000000000 -0400
@@ -197,11 +197,16 @@ int config_ep_by_speed(struct usb_gadget
 
 ep_found:
 	/* commit results */
-	_ep->maxpacket = usb_endpoint_maxp(chosen_desc);
+	_ep->maxpacket = usb_endpoint_maxp(chosen_desc) & 0x7ff;
 	_ep->desc = chosen_desc;
 	_ep->comp_desc = NULL;
 	_ep->maxburst = 0;
-	_ep->mult = 0;
+	_ep->mult = 1;
+
+	if (g->speed == USB_SPEED_HIGH && (usb_endpoint_xfer_isoc(_ep->desc) ||
+				usb_endpoint_xfer_int(_ep->desc)))
+		_ep->mult = ((usb_endpoint_maxp(_ep->desc) & 0x1800) >> 11) + 1;
+
 	if (!want_comp_desc)
 		return 0;
 
@@ -218,7 +223,7 @@ ep_found:
 		switch (usb_endpoint_type(_ep->desc)) {
 		case USB_ENDPOINT_XFER_ISOC:
 			/* mult: bits 1:0 of bmAttributes */
-			_ep->mult = comp_desc->bmAttributes & 0x3;
+			_ep->mult = (comp_desc->bmAttributes & 0x3) + 1;
 		case USB_ENDPOINT_XFER_BULK:
 		case USB_ENDPOINT_XFER_INT:
 			_ep->maxburst = comp_desc->bMaxBurst + 1;
@@ -1689,9 +1694,7 @@ composite_setup(struct usb_gadget *gadge
 		value = min(w_length, (u16) 1);
 		break;
 
-	/* function drivers must handle get/set altsetting; if there's
-	 * no get() method, we know only altsetting zero works.
-	 */
+	/* function drivers must handle get/set altsetting */
 	case USB_REQ_SET_INTERFACE:
 		if (ctrl->bRequestType != USB_RECIP_INTERFACE)
 			goto unknown;
@@ -1700,7 +1703,13 @@ composite_setup(struct usb_gadget *gadge
 		f = cdev->config->interface[intf];
 		if (!f)
 			break;
-		if (w_value && !f->set_alt)
+
+		/*
+		 * If there's no get_alt() method, we know only altsetting zero
+		 * works. There is no need to check if set_alt() is not NULL
+		 * as we check this in usb_add_function().
+		 */
+		if (w_value && !f->get_alt)
 			break;
 		value = f->set_alt(f, w_index, w_value);
 		if (value == USB_GADGET_DELAYED_STATUS) {
@@ -2138,7 +2147,7 @@ int composite_os_desc_req_prepare(struct
 	cdev->os_desc_req->buf = kmalloc(4096, GFP_KERNEL);
 	if (!cdev->os_desc_req->buf) {
 		ret = -ENOMEM;
-		kfree(cdev->os_desc_req);
+		usb_ep_free_request(ep0, cdev->os_desc_req);
 		goto end;
 	}
 	cdev->os_desc_req->context = cdev;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/f_acm.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_acm.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/f_acm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_acm.c	2017-09-27 08:40:05.000000000 -0400
@@ -535,13 +535,15 @@ static int acm_notify_serial_state(struc
 {
 	struct usb_composite_dev *cdev = acm->port.func.config->cdev;
 	int			status;
+	__le16			serial_state;
 
 	spin_lock(&acm->lock);
 	if (acm->notify_req) {
 		dev_dbg(&cdev->gadget->dev, "acm ttyGS%d serial state %04x\n",
 			acm->port_num, acm->serial_state);
+		serial_state = cpu_to_le16(acm->serial_state);
 		status = acm_cdc_notify(acm, USB_CDC_NOTIFY_SERIAL_STATE,
-				0, &acm->serial_state, sizeof(acm->serial_state));
+				0, &serial_state, sizeof(acm->serial_state));
 	} else {
 		acm->pending = true;
 		status = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/f_fs.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_fs.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/f_fs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_fs.c	2017-09-27 08:40:05.000000000 -0400
@@ -1833,11 +1833,14 @@ static int ffs_func_eps_enable(struct ff
 	spin_lock_irqsave(&func->ffs->eps_lock, flags);
 	do {
 		struct usb_endpoint_descriptor *ds;
+		struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
+		int needs_comp_desc = false;
 		int desc_idx;
 
-		if (ffs->gadget->speed == USB_SPEED_SUPER)
+		if (ffs->gadget->speed == USB_SPEED_SUPER) {
 			desc_idx = 2;
-		else if (ffs->gadget->speed == USB_SPEED_HIGH)
+			needs_comp_desc = true;
+		} else if (ffs->gadget->speed == USB_SPEED_HIGH)
 			desc_idx = 1;
 		else
 			desc_idx = 0;
@@ -1854,6 +1857,14 @@ static int ffs_func_eps_enable(struct ff
 
 		ep->ep->driver_data = ep;
 		ep->ep->desc = ds;
+
+		if (needs_comp_desc) {
+			comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +
+					USB_DT_ENDPOINT_SIZE);
+			ep->ep->maxburst = comp_desc->bMaxBurst + 1;
+			ep->ep->comp_desc = comp_desc;
+		}
+
 		ret = usb_ep_enable(ep->ep);
 		if (likely(!ret)) {
 			epfile->ep = ep;
@@ -2269,6 +2280,8 @@ static int __ffs_data_do_os_desc(enum ff
 		if (len < sizeof(*d) || h->interface >= ffs->interfaces_count)
 			return -EINVAL;
 		length = le32_to_cpu(d->dwSize);
+		if (len < length)
+			return -EINVAL;
 		type = le32_to_cpu(d->dwPropertyDataType);
 		if (type < USB_EXT_PROP_UNICODE ||
 		    type > USB_EXT_PROP_UNICODE_MULTI) {
@@ -2277,6 +2290,11 @@ static int __ffs_data_do_os_desc(enum ff
 			return -EINVAL;
 		}
 		pnl = le16_to_cpu(d->wPropertyNameLength);
+		if (length < 14 + pnl) {
+			pr_vdebug("invalid os descriptor length: %d pnl:%d (descriptor %d)\n",
+				  length, pnl, type);
+			return -EINVAL;
+		}
 		pdl = le32_to_cpu(*(u32 *)((u8 *)data + 10 + pnl));
 		if (length != 14 + pnl + pdl) {
 			pr_vdebug("invalid os descriptor length: %d pnl:%d pdl:%d (descriptor %d)\n",
@@ -2363,6 +2381,9 @@ static int __ffs_data_got_descs(struct f
 		}
 	}
 	if (flags & (1 << i)) {
+		if (len < 4) {
+			goto error;
+		}
 		os_descs_count = get_unaligned_le32(data);
 		data += 4;
 		len -= 4;
@@ -2435,7 +2456,8 @@ static int __ffs_data_got_strings(struct
 
 	ENTER();
 
-	if (unlikely(get_unaligned_le32(data) != FUNCTIONFS_STRINGS_MAGIC ||
+	if (unlikely(len < 16 ||
+		     get_unaligned_le32(data) != FUNCTIONFS_STRINGS_MAGIC ||
 		     get_unaligned_le32(data + 4) != len))
 		goto error;
 	str_count  = get_unaligned_le32(data + 8);
@@ -3666,6 +3688,7 @@ static void ffs_closed(struct ffs_data *
 {
 	struct ffs_dev *ffs_obj;
 	struct f_fs_opts *opts;
+	struct config_item *ci;
 
 	ENTER();
 	ffs_dev_lock();
@@ -3689,8 +3712,11 @@ static void ffs_closed(struct ffs_data *
 	    || !atomic_read(&opts->func_inst.group.cg_item.ci_kref.refcount))
 		goto done;
 
-	unregister_gadget_item(ffs_obj->opts->
-			       func_inst.group.cg_item.ci_parent->ci_parent);
+	ci = opts->func_inst.group.cg_item.ci_parent->ci_parent;
+	ffs_dev_unlock();
+
+	unregister_gadget_item(ci);
+	return;
 done:
 	ffs_dev_unlock();
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/f_hid.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_hid.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/f_hid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_hid.c	2017-09-27 08:40:05.000000000 -0400
@@ -50,12 +50,12 @@ struct f_hidg {
 
 	/* recv report */
 	struct list_head		completed_out_req;
-	spinlock_t			spinlock;
+	spinlock_t			read_spinlock;
 	wait_queue_head_t		read_queue;
 	unsigned int			qlen;
 
 	/* send report */
-	struct mutex			lock;
+	spinlock_t			write_spinlock;
 	bool				write_pending;
 	wait_queue_head_t		write_queue;
 	struct usb_request		*req;
@@ -204,28 +204,35 @@ static ssize_t f_hidg_read(struct file *
 	if (!access_ok(VERIFY_WRITE, buffer, count))
 		return -EFAULT;
 
-	spin_lock_irqsave(&hidg->spinlock, flags);
+	spin_lock_irqsave(&hidg->read_spinlock, flags);
 
 #define READ_COND (!list_empty(&hidg->completed_out_req))
 
 	/* wait for at least one buffer to complete */
 	while (!READ_COND) {
-		spin_unlock_irqrestore(&hidg->spinlock, flags);
+		spin_unlock_irqrestore(&hidg->read_spinlock, flags);
 		if (file->f_flags & O_NONBLOCK)
 			return -EAGAIN;
 
 		if (wait_event_interruptible(hidg->read_queue, READ_COND))
 			return -ERESTARTSYS;
 
-		spin_lock_irqsave(&hidg->spinlock, flags);
+		spin_lock_irqsave(&hidg->read_spinlock, flags);
 	}
 
 	/* pick the first one */
 	list = list_first_entry(&hidg->completed_out_req,
 				struct f_hidg_req_list, list);
+
+	/*
+	 * Remove this from list to protect it from beign free()
+	 * while host disables our function
+	 */
+	list_del(&list->list);
+
 	req = list->req;
 	count = min_t(unsigned int, count, req->actual - list->pos);
-	spin_unlock_irqrestore(&hidg->spinlock, flags);
+	spin_unlock_irqrestore(&hidg->read_spinlock, flags);
 
 	/* copy to user outside spinlock */
 	count -= copy_to_user(buffer, req->buf + list->pos, count);
@@ -238,15 +245,20 @@ static ssize_t f_hidg_read(struct file *
 	 * call, taking into account its current read position.
 	 */
 	if (list->pos == req->actual) {
-		spin_lock_irqsave(&hidg->spinlock, flags);
-		list_del(&list->list);
 		kfree(list);
-		spin_unlock_irqrestore(&hidg->spinlock, flags);
 
 		req->length = hidg->report_length;
 		ret = usb_ep_queue(hidg->out_ep, req, GFP_KERNEL);
-		if (ret < 0)
+		if (ret < 0) {
+			free_ep_req(hidg->out_ep, req);
 			return ret;
+		}
+	} else {
+		spin_lock_irqsave(&hidg->read_spinlock, flags);
+		list_add(&list->list, &hidg->completed_out_req);
+		spin_unlock_irqrestore(&hidg->read_spinlock, flags);
+
+		wake_up(&hidg->read_queue);
 	}
 
 	return count;
@@ -255,13 +267,16 @@ static ssize_t f_hidg_read(struct file *
 static void f_hidg_req_complete(struct usb_ep *ep, struct usb_request *req)
 {
 	struct f_hidg *hidg = (struct f_hidg *)ep->driver_data;
+	unsigned long flags;
 
 	if (req->status != 0) {
 		ERROR(hidg->func.config->cdev,
 			"End Point Request ERROR: %d\n", req->status);
 	}
 
+	spin_lock_irqsave(&hidg->write_spinlock, flags);
 	hidg->write_pending = 0;
+	spin_unlock_irqrestore(&hidg->write_spinlock, flags);
 	wake_up(&hidg->write_queue);
 }
 
@@ -269,18 +284,19 @@ static ssize_t f_hidg_write(struct file
 			    size_t count, loff_t *offp)
 {
 	struct f_hidg *hidg  = file->private_data;
+	unsigned long flags;
 	ssize_t status = -ENOMEM;
 
 	if (!access_ok(VERIFY_READ, buffer, count))
 		return -EFAULT;
 
-	mutex_lock(&hidg->lock);
+	spin_lock_irqsave(&hidg->write_spinlock, flags);
 
 #define WRITE_COND (!hidg->write_pending)
 
 	/* write queue */
 	while (!WRITE_COND) {
-		mutex_unlock(&hidg->lock);
+		spin_unlock_irqrestore(&hidg->write_spinlock, flags);
 		if (file->f_flags & O_NONBLOCK)
 			return -EAGAIN;
 
@@ -288,17 +304,20 @@ static ssize_t f_hidg_write(struct file
 				hidg->write_queue, WRITE_COND))
 			return -ERESTARTSYS;
 
-		mutex_lock(&hidg->lock);
+		spin_lock_irqsave(&hidg->write_spinlock, flags);
 	}
 
+	hidg->write_pending = 1;
 	count  = min_t(unsigned, count, hidg->report_length);
+
+	spin_unlock_irqrestore(&hidg->write_spinlock, flags);
 	status = copy_from_user(hidg->req->buf, buffer, count);
 
 	if (status != 0) {
 		ERROR(hidg->func.config->cdev,
 			"copy_from_user error\n");
-		mutex_unlock(&hidg->lock);
-		return -EINVAL;
+		status = -EINVAL;
+		goto release_write_pending;
 	}
 
 	hidg->req->status   = 0;
@@ -306,19 +325,23 @@ static ssize_t f_hidg_write(struct file
 	hidg->req->length   = count;
 	hidg->req->complete = f_hidg_req_complete;
 	hidg->req->context  = hidg;
-	hidg->write_pending = 1;
 
 	status = usb_ep_queue(hidg->in_ep, hidg->req, GFP_ATOMIC);
 	if (status < 0) {
 		ERROR(hidg->func.config->cdev,
 			"usb_ep_queue error on int endpoint %zd\n", status);
-		hidg->write_pending = 0;
-		wake_up(&hidg->write_queue);
+		goto release_write_pending;
 	} else {
 		status = count;
 	}
 
-	mutex_unlock(&hidg->lock);
+	return status;
+release_write_pending:
+	spin_lock_irqsave(&hidg->write_spinlock, flags);
+	hidg->write_pending = 0;
+	spin_unlock_irqrestore(&hidg->write_spinlock, flags);
+
+	wake_up(&hidg->write_queue);
 
 	return status;
 }
@@ -371,20 +394,36 @@ static inline struct usb_request *hidg_a
 static void hidg_set_report_complete(struct usb_ep *ep, struct usb_request *req)
 {
 	struct f_hidg *hidg = (struct f_hidg *) req->context;
+	struct usb_composite_dev *cdev = hidg->func.config->cdev;
 	struct f_hidg_req_list *req_list;
 	unsigned long flags;
 
-	req_list = kzalloc(sizeof(*req_list), GFP_ATOMIC);
-	if (!req_list)
-		return;
+	switch (req->status) {
+	case 0:
+		req_list = kzalloc(sizeof(*req_list), GFP_ATOMIC);
+		if (!req_list) {
+			ERROR(cdev, "Unable to allocate mem for req_list\n");
+			goto free_req;
+		}
 
-	req_list->req = req;
+		req_list->req = req;
 
-	spin_lock_irqsave(&hidg->spinlock, flags);
-	list_add_tail(&req_list->list, &hidg->completed_out_req);
-	spin_unlock_irqrestore(&hidg->spinlock, flags);
+		spin_lock_irqsave(&hidg->read_spinlock, flags);
+		list_add_tail(&req_list->list, &hidg->completed_out_req);
+		spin_unlock_irqrestore(&hidg->read_spinlock, flags);
 
-	wake_up(&hidg->read_queue);
+		wake_up(&hidg->read_queue);
+		break;
+	default:
+		ERROR(cdev, "Set report failed %d\n", req->status);
+		/* FALLTHROUGH */
+	case -ECONNABORTED:		/* hardware forced ep reset */
+	case -ECONNRESET:		/* request dequeued */
+	case -ESHUTDOWN:		/* disconnect from host */
+free_req:
+		free_ep_req(ep, req);
+		return;
+	}
 }
 
 static int hidg_setup(struct usb_function *f,
@@ -490,14 +529,18 @@ static void hidg_disable(struct usb_func
 {
 	struct f_hidg *hidg = func_to_hidg(f);
 	struct f_hidg_req_list *list, *next;
+	unsigned long flags;
 
 	usb_ep_disable(hidg->in_ep);
 	usb_ep_disable(hidg->out_ep);
 
+	spin_lock_irqsave(&hidg->read_spinlock, flags);
 	list_for_each_entry_safe(list, next, &hidg->completed_out_req, list) {
+		free_ep_req(hidg->out_ep, list->req);
 		list_del(&list->list);
 		kfree(list);
 	}
+	spin_unlock_irqrestore(&hidg->read_spinlock, flags);
 }
 
 static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
@@ -539,7 +582,7 @@ static int hidg_set_alt(struct usb_funct
 		}
 		status = usb_ep_enable(hidg->out_ep);
 		if (status < 0) {
-			ERROR(cdev, "Enable IN endpoint FAILED!\n");
+			ERROR(cdev, "Enable OUT endpoint FAILED!\n");
 			goto fail;
 		}
 		hidg->out_ep->driver_data = hidg;
@@ -646,8 +689,8 @@ static int hidg_bind(struct usb_configur
 	if (status)
 		goto fail;
 
-	mutex_init(&hidg->lock);
-	spin_lock_init(&hidg->spinlock);
+	spin_lock_init(&hidg->write_spinlock);
+	spin_lock_init(&hidg->read_spinlock);
 	init_waitqueue_head(&hidg->write_queue);
 	init_waitqueue_head(&hidg->read_queue);
 	INIT_LIST_HEAD(&hidg->completed_out_req);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/f_mass_storage.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_mass_storage.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/f_mass_storage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_mass_storage.c	2017-09-27 08:40:05.000000000 -0400
@@ -395,7 +395,11 @@ static int fsg_set_halt(struct fsg_dev *
 /* Caller must hold fsg->lock */
 static void wakeup_thread(struct fsg_common *common)
 {
-	smp_wmb();	/* ensure the write of bh->state is complete */
+	/*
+	 * Ensure the reading of thread_wakeup_needed
+	 * and the writing of bh->state are completed
+	 */
+	smp_mb();
 	/* Tell the main thread that something has happened */
 	common->thread_wakeup_needed = 1;
 	if (common->thread_task)
@@ -626,7 +630,12 @@ static int sleep_thread(struct fsg_commo
 	}
 	__set_current_state(TASK_RUNNING);
 	common->thread_wakeup_needed = 0;
-	smp_rmb();	/* ensure the latest bh->state is visible */
+
+	/*
+	 * Ensure the writing of thread_wakeup_needed
+	 * and the reading of bh->state are completed
+	 */
+	smp_mb();
 	return rc;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/f_tcm.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_tcm.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/f_tcm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_tcm.c	2017-09-27 08:40:05.000000000 -0400
@@ -1073,7 +1073,7 @@ static struct usbg_cmd *usbg_get_cmd(str
 	struct usbg_cmd *cmd;
 	int tag;
 
-	tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_ATOMIC);
+	tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING);
 	if (tag < 0)
 		return ERR_PTR(-ENOMEM);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/f_uac2.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_uac2.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/f_uac2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_uac2.c	2017-09-27 08:40:05.000000000 -0400
@@ -1067,13 +1067,13 @@ afunc_bind(struct usb_configuration *cfg
 	agdev->out_ep = usb_ep_autoconfig(gadget, &fs_epout_desc);
 	if (!agdev->out_ep) {
 		dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
-		goto err;
+		return ret;
 	}
 
 	agdev->in_ep = usb_ep_autoconfig(gadget, &fs_epin_desc);
 	if (!agdev->in_ep) {
 		dev_err(dev, "%s:%d Error!\n", __func__, __LINE__);
-		goto err;
+		return ret;
 	}
 
 	uac2->p_prm.uac2 = uac2;
@@ -1091,7 +1091,7 @@ afunc_bind(struct usb_configuration *cfg
 	ret = usb_assign_descriptors(fn, fs_audio_desc, hs_audio_desc, NULL,
 				     NULL);
 	if (ret)
-		goto err;
+		return ret;
 
 	prm = &agdev->uac2.c_prm;
 	prm->max_psize = hs_epout_desc.wMaxPacketSize;
@@ -1106,19 +1106,19 @@ afunc_bind(struct usb_configuration *cfg
 	prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL);
 	if (!prm->rbuf) {
 		prm->max_psize = 0;
-		goto err_free_descs;
+		goto err;
 	}
 
 	ret = alsa_uac2_init(agdev);
 	if (ret)
-		goto err_free_descs;
+		goto err;
 	return 0;
 
-err_free_descs:
-	usb_free_all_descriptors(fn);
 err:
 	kfree(agdev->uac2.p_prm.rbuf);
 	kfree(agdev->uac2.c_prm.rbuf);
+err_free_descs:
+	usb_free_all_descriptors(fn);
 	return -EINVAL;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/f_uvc.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_uvc.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/f_uvc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/f_uvc.c	2017-09-27 08:40:05.000000000 -0400
@@ -258,13 +258,6 @@ uvc_function_setup(struct usb_function *
 	memcpy(&uvc_event->req, ctrl, sizeof(uvc_event->req));
 	v4l2_event_queue(&uvc->vdev, &v4l2_event);
 
-	/* Pass additional setup data to userspace */
-	if (uvc->event_setup_out && uvc->event_length) {
-		uvc->control_req->length = uvc->event_length;
-		return usb_ep_queue(uvc->func.config->cdev->gadget->ep0,
-			uvc->control_req, GFP_ATOMIC);
-	}
-
 	return 0;
 }
 
@@ -632,7 +625,7 @@ uvc_function_bind(struct usb_configurati
 	uvc_ss_streaming_comp.bMaxBurst = opts->streaming_maxburst;
 	uvc_ss_streaming_comp.wBytesPerInterval =
 		cpu_to_le16(max_packet_size * max_packet_mult *
-			    opts->streaming_maxburst);
+			    (opts->streaming_maxburst + 1));
 
 	/* Allocate endpoints. */
 	ep = usb_ep_autoconfig(cdev->gadget, &uvc_control_ep);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/function/uvc_video.c linux-libre-4.9.52-gnu/drivers/usb/gadget/function/uvc_video.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/function/uvc_video.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/function/uvc_video.c	2017-09-27 08:40:05.000000000 -0400
@@ -243,7 +243,7 @@ uvc_video_alloc_requests(struct uvc_vide
 
 	req_size = video->ep->maxpacket
 		 * max_t(unsigned int, video->ep->maxburst, 1)
-		 * (video->ep->mult + 1);
+		 * (video->ep->mult);
 
 	for (i = 0; i < UVC_NUM_REQUESTS; ++i) {
 		video->req_buffer[i] = kmalloc(req_size, GFP_KERNEL);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/Kconfig linux-libre-4.9.52-gnu/drivers/usb/gadget/Kconfig
--- linux-libre-4.9-gnu/drivers/usb/gadget/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -460,6 +460,7 @@ config USB_CONFIGFS_F_TCM
 choice
 	tristate "USB Gadget Drivers"
 	default USB_ETH
+	optional
 	help
 	  A Linux "Gadget Driver" talks to the USB Peripheral Controller
 	  driver through the abstract "gadget" API.  Some other operating
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/legacy/inode.c linux-libre-4.9.52-gnu/drivers/usb/gadget/legacy/inode.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/legacy/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/legacy/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -1126,7 +1126,7 @@ ep0_write (struct file *fd, const char _
 	/* data and/or status stage for control request */
 	} else if (dev->state == STATE_DEV_SETUP) {
 
-		/* IN DATA+STATUS caller makes len <= wLength */
+		len = min_t(size_t, len, dev->setup_wLength);
 		if (dev->setup_in) {
 			retval = setup_req (dev->gadget->ep0, dev->req, len);
 			if (retval == 0) {
@@ -1183,8 +1183,10 @@ dev_release (struct inode *inode, struct
 
 	/* closing ep0 === shutdown all */
 
-	if (dev->gadget_registered)
+	if (dev->gadget_registered) {
 		usb_gadget_unregister_driver (&gadgetfs_driver);
+		dev->gadget_registered = false;
+	}
 
 	/* at this point "good" hardware has disconnected the
 	 * device from USB; the host won't see it any more.
@@ -1677,9 +1679,10 @@ static void
 gadgetfs_suspend (struct usb_gadget *gadget)
 {
 	struct dev_data		*dev = get_gadget_data (gadget);
+	unsigned long		flags;
 
 	INFO (dev, "suspended from state %d\n", dev->state);
-	spin_lock (&dev->lock);
+	spin_lock_irqsave(&dev->lock, flags);
 	switch (dev->state) {
 	case STATE_DEV_SETUP:		// VERY odd... host died??
 	case STATE_DEV_CONNECTED:
@@ -1690,7 +1693,7 @@ gadgetfs_suspend (struct usb_gadget *gad
 	default:
 		break;
 	}
-	spin_unlock (&dev->lock);
+	spin_unlock_irqrestore(&dev->lock, flags);
 }
 
 static struct usb_gadget_driver gadgetfs_driver = {
@@ -1734,10 +1737,12 @@ static struct usb_gadget_driver gadgetfs
  * such as configuration notifications.
  */
 
-static int is_valid_config (struct usb_config_descriptor *config)
+static int is_valid_config(struct usb_config_descriptor *config,
+		unsigned int total)
 {
 	return config->bDescriptorType == USB_DT_CONFIG
 		&& config->bLength == USB_DT_CONFIG_SIZE
+		&& total >= USB_DT_CONFIG_SIZE
 		&& config->bConfigurationValue != 0
 		&& (config->bmAttributes & USB_CONFIG_ATT_ONE) != 0
 		&& (config->bmAttributes & USB_CONFIG_ATT_WAKEUP) == 0;
@@ -1762,7 +1767,8 @@ dev_config (struct file *fd, const char
 	}
 	spin_unlock_irq(&dev->lock);
 
-	if (len < (USB_DT_CONFIG_SIZE + USB_DT_DEVICE_SIZE + 4))
+	if ((len < (USB_DT_CONFIG_SIZE + USB_DT_DEVICE_SIZE + 4)) ||
+	    (len > PAGE_SIZE * 4))
 		return -EINVAL;
 
 	/* we might need to change message format someday */
@@ -1786,7 +1792,8 @@ dev_config (struct file *fd, const char
 	/* full or low speed config */
 	dev->config = (void *) kbuf;
 	total = le16_to_cpu(dev->config->wTotalLength);
-	if (!is_valid_config (dev->config) || total >= length)
+	if (!is_valid_config(dev->config, total) ||
+			total > length - USB_DT_DEVICE_SIZE)
 		goto fail;
 	kbuf += total;
 	length -= total;
@@ -1795,10 +1802,13 @@ dev_config (struct file *fd, const char
 	if (kbuf [1] == USB_DT_CONFIG) {
 		dev->hs_config = (void *) kbuf;
 		total = le16_to_cpu(dev->hs_config->wTotalLength);
-		if (!is_valid_config (dev->hs_config) || total >= length)
+		if (!is_valid_config(dev->hs_config, total) ||
+				total > length - USB_DT_DEVICE_SIZE)
 			goto fail;
 		kbuf += total;
 		length -= total;
+	} else {
+		dev->hs_config = NULL;
 	}
 
 	/* could support multiple configs, using another encoding! */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/atmel_usba_udc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1978,7 +1978,8 @@ static struct usba_ep * atmel_udc_of_ini
 			dev_err(&pdev->dev, "of_probe: name error(%d)\n", ret);
 			goto err;
 		}
-		ep->ep.name = kasprintf(GFP_KERNEL, "ep%d", ep->index);
+		sprintf(ep->name, "ep%d", ep->index);
+		ep->ep.name = ep->name;
 
 		ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
 		ep->dma_regs = udc->regs + USBA_DMA_BASE(i);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/udc/atmel_usba_udc.h linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/atmel_usba_udc.h
--- linux-libre-4.9-gnu/drivers/usb/gadget/udc/atmel_usba_udc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/atmel_usba_udc.h	2017-09-27 08:40:05.000000000 -0400
@@ -280,6 +280,7 @@ struct usba_ep {
 	void __iomem				*ep_regs;
 	void __iomem				*dma_regs;
 	void __iomem				*fifo;
+	char					name[8];
 	struct usb_ep				ep;
 	struct usba_udc				*udc;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/udc/core.c linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/core.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/udc/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1080,6 +1080,24 @@ static void usb_udc_nop_release(struct d
 	dev_vdbg(dev, "%s\n", __func__);
 }
 
+/* should be called with udc_lock held */
+static int check_pending_gadget_drivers(struct usb_udc *udc)
+{
+	struct usb_gadget_driver *driver;
+	int ret = 0;
+
+	list_for_each_entry(driver, &gadget_driver_pending_list, pending)
+		if (!driver->udc_name || strcmp(driver->udc_name,
+						dev_name(&udc->dev)) == 0) {
+			ret = udc_bind_to_driver(udc, driver);
+			if (ret != -EPROBE_DEFER)
+				list_del(&driver->pending);
+			break;
+		}
+
+	return ret;
+}
+
 /**
  * usb_add_gadget_udc_release - adds a new gadget to the udc class driver list
  * @parent: the parent device to this udc. Usually the controller driver's
@@ -1093,7 +1111,6 @@ int usb_add_gadget_udc_release(struct de
 		void (*release)(struct device *dev))
 {
 	struct usb_udc		*udc;
-	struct usb_gadget_driver *driver;
 	int			ret = -ENOMEM;
 
 	udc = kzalloc(sizeof(*udc), GFP_KERNEL);
@@ -1136,17 +1153,9 @@ int usb_add_gadget_udc_release(struct de
 	udc->vbus = true;
 
 	/* pick up one of pending gadget drivers */
-	list_for_each_entry(driver, &gadget_driver_pending_list, pending) {
-		if (!driver->udc_name || strcmp(driver->udc_name,
-						dev_name(&udc->dev)) == 0) {
-			ret = udc_bind_to_driver(udc, driver);
-			if (ret != -EPROBE_DEFER)
-				list_del(&driver->pending);
-			if (ret)
-				goto err5;
-			break;
-		}
-	}
+	ret = check_pending_gadget_drivers(udc);
+	if (ret)
+		goto err5;
 
 	mutex_unlock(&udc_lock);
 
@@ -1317,7 +1326,11 @@ int usb_gadget_probe_driver(struct usb_g
 			if (!ret)
 				break;
 		}
-		if (!ret && !udc->driver)
+		if (ret)
+			ret = -ENODEV;
+		else if (udc->driver)
+			ret = -EBUSY;
+		else
 			goto found;
 	} else {
 		list_for_each_entry(udc, &udc_list, list) {
@@ -1352,14 +1365,22 @@ int usb_gadget_unregister_driver(struct
 		return -EINVAL;
 
 	mutex_lock(&udc_lock);
-	list_for_each_entry(udc, &udc_list, list)
+	list_for_each_entry(udc, &udc_list, list) {
 		if (udc->driver == driver) {
 			usb_gadget_remove_driver(udc);
 			usb_gadget_set_state(udc->gadget,
-					USB_STATE_NOTATTACHED);
+					     USB_STATE_NOTATTACHED);
+
+			/* Maybe there is someone waiting for this UDC? */
+			check_pending_gadget_drivers(udc);
+			/*
+			 * For now we ignore bind errors as probably it's
+			 * not a valid reason to fail other's gadget unbind
+			 */
 			ret = 0;
 			break;
 		}
+	}
 
 	if (ret) {
 		list_del(&driver->pending);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/udc/dummy_hcd.c linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/dummy_hcd.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/udc/dummy_hcd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/dummy_hcd.c	2017-09-27 08:40:05.000000000 -0400
@@ -330,7 +330,7 @@ static void nuke(struct dummy *dum, stru
 /* caller must hold lock */
 static void stop_activity(struct dummy *dum)
 {
-	struct dummy_ep	*ep;
+	int i;
 
 	/* prevent any more requests */
 	dum->address = 0;
@@ -338,8 +338,8 @@ static void stop_activity(struct dummy *
 	/* The timer is left running so that outstanding URBs can fail */
 
 	/* nuke any pending requests first, so driver i/o is quiesced */
-	list_for_each_entry(ep, &dum->gadget.ep_list, ep.ep_list)
-		nuke(dum, ep);
+	for (i = 0; i < DUMMY_ENDPOINTS; ++i)
+		nuke(dum, &dum->ep[i]);
 
 	/* driver now does any non-usb quiescing necessary */
 }
@@ -442,23 +442,16 @@ static void set_link_state(struct dummy_
 		/* Report reset and disconnect events to the driver */
 		if (dum->driver && (disconnect || reset)) {
 			stop_activity(dum);
-			spin_unlock(&dum->lock);
 			if (reset)
 				usb_gadget_udc_reset(&dum->gadget, dum->driver);
 			else
 				dum->driver->disconnect(&dum->gadget);
-			spin_lock(&dum->lock);
 		}
 	} else if (dum_hcd->active != dum_hcd->old_active) {
-		if (dum_hcd->old_active && dum->driver->suspend) {
-			spin_unlock(&dum->lock);
+		if (dum_hcd->old_active && dum->driver->suspend)
 			dum->driver->suspend(&dum->gadget);
-			spin_lock(&dum->lock);
-		} else if (!dum_hcd->old_active &&  dum->driver->resume) {
-			spin_unlock(&dum->lock);
+		else if (!dum_hcd->old_active &&  dum->driver->resume)
 			dum->driver->resume(&dum->gadget);
-			spin_lock(&dum->lock);
-		}
 	}
 
 	dum_hcd->old_status = dum_hcd->port_status;
@@ -983,7 +976,9 @@ static int dummy_udc_stop(struct usb_gad
 	struct dummy_hcd	*dum_hcd = gadget_to_dummy_hcd(g);
 	struct dummy		*dum = dum_hcd->dum;
 
+	spin_lock_irq(&dum->lock);
 	dum->driver = NULL;
+	spin_unlock_irq(&dum->lock);
 
 	return 0;
 }
@@ -1031,6 +1026,8 @@ static int dummy_udc_probe(struct platfo
 	int		rc;
 
 	dum = *((void **)dev_get_platdata(&pdev->dev));
+	/* Clear usb_gadget region for new registration to udc-core */
+	memzero_explicit(&dum->gadget, sizeof(struct usb_gadget));
 	dum->gadget.name = gadget_name;
 	dum->gadget.ops = &dummy_ops;
 	dum->gadget.max_speed = USB_SPEED_SUPER;
@@ -2007,7 +2004,7 @@ ss_hub_descriptor(struct usb_hub_descrip
 			HUB_CHAR_COMMON_OCPM);
 	desc->bNbrPorts = 1;
 	desc->u.ss.bHubHdrDecLat = 0x04; /* Worst case: 0.4 micro sec*/
-	desc->u.ss.DeviceRemovable = 0xffff;
+	desc->u.ss.DeviceRemovable = 0;
 }
 
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
@@ -2019,8 +2016,8 @@ static inline void hub_descriptor(struct
 			HUB_CHAR_INDV_PORT_LPSM |
 			HUB_CHAR_COMMON_OCPM);
 	desc->bNbrPorts = 1;
-	desc->u.hs.DeviceRemovable[0] = 0xff;
-	desc->u.hs.DeviceRemovable[1] = 0xff;
+	desc->u.hs.DeviceRemovable[0] = 0;
+	desc->u.hs.DeviceRemovable[1] = 0xff;	/* PortPwrCtrlMask */
 }
 
 static int dummy_hub_control(
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/udc/fsl_udc_core.c linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/fsl_udc_core.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/udc/fsl_udc_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/fsl_udc_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1249,6 +1249,12 @@ static const struct usb_gadget_ops fsl_g
 	.udc_stop = fsl_udc_stop,
 };
 
+/*
+ * Empty complete function used by this driver to fill in the req->complete
+ * field when creating a request since the complete field is mandatory.
+ */
+static void fsl_noop_complete(struct usb_ep *ep, struct usb_request *req) { }
+
 /* Set protocol stall on ep0, protocol stall will automatically be cleared
    on new transaction */
 static void ep0stall(struct fsl_udc *udc)
@@ -1283,7 +1289,7 @@ static int ep0_prime_status(struct fsl_u
 	req->req.length = 0;
 	req->req.status = -EINPROGRESS;
 	req->req.actual = 0;
-	req->req.complete = NULL;
+	req->req.complete = fsl_noop_complete;
 	req->dtd_count = 0;
 
 	ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep));
@@ -1366,7 +1372,7 @@ static void ch9getstatus(struct fsl_udc
 	req->req.length = 2;
 	req->req.status = -EINPROGRESS;
 	req->req.actual = 0;
-	req->req.complete = NULL;
+	req->req.complete = fsl_noop_complete;
 	req->dtd_count = 0;
 
 	ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/udc/net2280.c linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/net2280.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/udc/net2280.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/net2280.c	2017-09-27 08:40:05.000000000 -0400
@@ -2469,11 +2469,8 @@ static void stop_activity(struct net2280
 		nuke(&dev->ep[i]);
 
 	/* report disconnect; the driver is already quiesced */
-	if (driver) {
-		spin_unlock(&dev->lock);
+	if (driver)
 		driver->disconnect(&dev->gadget);
-		spin_lock(&dev->lock);
-	}
 
 	usb_reinit(dev);
 }
@@ -3347,8 +3344,6 @@ next_endpoints:
 		BIT(PCI_RETRY_ABORT_INTERRUPT))
 
 static void handle_stat1_irqs(struct net2280 *dev, u32 stat)
-__releases(dev->lock)
-__acquires(dev->lock)
 {
 	struct net2280_ep	*ep;
 	u32			tmp, num, mask, scratch;
@@ -3389,14 +3384,12 @@ __acquires(dev->lock)
 			if (disconnect || reset) {
 				stop_activity(dev, dev->driver);
 				ep0_start(dev);
-				spin_unlock(&dev->lock);
 				if (reset)
 					usb_gadget_udc_reset
 						(&dev->gadget, dev->driver);
 				else
 					(dev->driver->disconnect)
 						(&dev->gadget);
-				spin_lock(&dev->lock);
 				return;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/gadget/udc/renesas_usb3.c linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/renesas_usb3.c
--- linux-libre-4.9-gnu/drivers/usb/gadget/udc/renesas_usb3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/gadget/udc/renesas_usb3.c	2017-09-27 08:40:05.000000000 -0400
@@ -685,21 +685,32 @@ static struct renesas_usb3_request *usb3
 	return usb3_req;
 }
 
-static void usb3_request_done(struct renesas_usb3_ep *usb3_ep,
-			      struct renesas_usb3_request *usb3_req, int status)
+static void __usb3_request_done(struct renesas_usb3_ep *usb3_ep,
+				struct renesas_usb3_request *usb3_req,
+				int status)
 {
 	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
-	unsigned long flags;
 
 	dev_dbg(usb3_to_dev(usb3), "giveback: ep%2d, %u, %u, %d\n",
 		usb3_ep->num, usb3_req->req.length, usb3_req->req.actual,
 		status);
 	usb3_req->req.status = status;
-	spin_lock_irqsave(&usb3->lock, flags);
 	usb3_ep->started = false;
 	list_del_init(&usb3_req->queue);
-	spin_unlock_irqrestore(&usb3->lock, flags);
+	spin_unlock(&usb3->lock);
 	usb_gadget_giveback_request(&usb3_ep->ep, &usb3_req->req);
+	spin_lock(&usb3->lock);
+}
+
+static void usb3_request_done(struct renesas_usb3_ep *usb3_ep,
+			      struct renesas_usb3_request *usb3_req, int status)
+{
+	struct renesas_usb3 *usb3 = usb3_ep_to_usb3(usb3_ep);
+	unsigned long flags;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	__usb3_request_done(usb3_ep, usb3_req, status);
+	spin_unlock_irqrestore(&usb3->lock, flags);
 }
 
 static void usb3_irq_epc_pipe0_status_end(struct renesas_usb3 *usb3)
@@ -1401,7 +1412,13 @@ static void usb3_request_done_pipen(stru
 				    struct renesas_usb3_request *usb3_req,
 				    int status)
 {
-	usb3_pn_stop(usb3);
+	unsigned long flags;
+
+	spin_lock_irqsave(&usb3->lock, flags);
+	if (usb3_pn_change(usb3, usb3_ep->num))
+		usb3_pn_stop(usb3);
+	spin_unlock_irqrestore(&usb3->lock, flags);
+
 	usb3_disable_pipe_irq(usb3, usb3_ep->num);
 	usb3_request_done(usb3_ep, usb3_req, status);
 
@@ -1430,30 +1447,46 @@ static void usb3_irq_epc_pipen_bfrdy(str
 {
 	struct renesas_usb3_ep *usb3_ep = usb3_get_ep(usb3, num);
 	struct renesas_usb3_request *usb3_req = usb3_get_request(usb3_ep);
+	bool done = false;
 
 	if (!usb3_req)
 		return;
 
+	spin_lock(&usb3->lock);
+	if (usb3_pn_change(usb3, num))
+		goto out;
+
 	if (usb3_ep->dir_in) {
 		/* Do not stop the IN pipe here to detect LSTTR interrupt */
 		if (!usb3_write_pipe(usb3_ep, usb3_req, USB3_PN_WRITE))
 			usb3_clear_bit(usb3, PN_INT_BFRDY, USB3_PN_INT_ENA);
 	} else {
 		if (!usb3_read_pipe(usb3_ep, usb3_req, USB3_PN_READ))
-			usb3_request_done_pipen(usb3, usb3_ep, usb3_req, 0);
+			done = true;
 	}
+
+out:
+	/* need to unlock because usb3_request_done_pipen() locks it */
+	spin_unlock(&usb3->lock);
+
+	if (done)
+		usb3_request_done_pipen(usb3, usb3_ep, usb3_req, 0);
 }
 
 static void usb3_irq_epc_pipen(struct renesas_usb3 *usb3, int num)
 {
 	u32 pn_int_sta;
 
-	if (usb3_pn_change(usb3, num) < 0)
+	spin_lock(&usb3->lock);
+	if (usb3_pn_change(usb3, num) < 0) {
+		spin_unlock(&usb3->lock);
 		return;
+	}
 
 	pn_int_sta = usb3_read(usb3, USB3_PN_INT_STA);
 	pn_int_sta &= usb3_read(usb3, USB3_PN_INT_ENA);
 	usb3_write(usb3, pn_int_sta, USB3_PN_INT_STA);
+	spin_unlock(&usb3->lock);
 	if (pn_int_sta & PN_INT_LSTTR)
 		usb3_irq_epc_pipen_lsttr(usb3, num);
 	if (pn_int_sta & PN_INT_BFRDY)
@@ -1707,6 +1740,9 @@ static int renesas_usb3_start(struct usb
 	/* hook up the driver */
 	usb3->driver = driver;
 
+	pm_runtime_enable(usb3_to_dev(usb3));
+	pm_runtime_get_sync(usb3_to_dev(usb3));
+
 	renesas_usb3_init_controller(usb3);
 
 	return 0;
@@ -1715,14 +1751,14 @@ static int renesas_usb3_start(struct usb
 static int renesas_usb3_stop(struct usb_gadget *gadget)
 {
 	struct renesas_usb3 *usb3 = gadget_to_renesas_usb3(gadget);
-	unsigned long flags;
 
-	spin_lock_irqsave(&usb3->lock, flags);
 	usb3->softconnect = false;
 	usb3->gadget.speed = USB_SPEED_UNKNOWN;
 	usb3->driver = NULL;
 	renesas_usb3_stop_controller(usb3);
-	spin_unlock_irqrestore(&usb3->lock, flags);
+
+	pm_runtime_put(usb3_to_dev(usb3));
+	pm_runtime_disable(usb3_to_dev(usb3));
 
 	return 0;
 }
@@ -1761,9 +1797,6 @@ static int renesas_usb3_remove(struct pl
 {
 	struct renesas_usb3 *usb3 = platform_get_drvdata(pdev);
 
-	pm_runtime_put(&pdev->dev);
-	pm_runtime_disable(&pdev->dev);
-
 	usb_del_gadget_udc(&usb3->gadget);
 
 	__renesas_usb3_ep_free_request(usb3->ep0_req);
@@ -1948,9 +1981,6 @@ static int renesas_usb3_probe(struct pla
 
 	usb3->workaround_for_vbus = priv->workaround_for_vbus;
 
-	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
-
 	dev_info(&pdev->dev, "probed\n");
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/ehci-exynos.c linux-libre-4.9.52-gnu/drivers/usb/host/ehci-exynos.c
--- linux-libre-4.9-gnu/drivers/usb/host/ehci-exynos.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/ehci-exynos.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,10 +77,12 @@ static int exynos_ehci_get_phy(struct de
 		if (IS_ERR(phy)) {
 			ret = PTR_ERR(phy);
 			if (ret == -EPROBE_DEFER) {
+				of_node_put(child);
 				return ret;
 			} else if (ret != -ENOSYS && ret != -ENODEV) {
 				dev_err(dev,
 					"Error retrieving usb2 phy: %d\n", ret);
+				of_node_put(child);
 				return ret;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/ohci-at91.c linux-libre-4.9.52-gnu/drivers/usb/host/ohci-at91.c
--- linux-libre-4.9-gnu/drivers/usb/host/ohci-at91.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/ohci-at91.c	2017-09-27 08:40:05.000000000 -0400
@@ -361,7 +361,7 @@ static int ohci_at91_hub_control(struct
 
 		case USB_PORT_FEAT_SUSPEND:
 			dev_dbg(hcd->self.controller, "SetPortFeat: SUSPEND\n");
-			if (valid_port(wIndex)) {
+			if (valid_port(wIndex) && ohci_at91->sfr_regmap) {
 				ohci_at91_port_suspend(ohci_at91->sfr_regmap,
 						       1);
 				return 0;
@@ -404,7 +404,7 @@ static int ohci_at91_hub_control(struct
 
 		case USB_PORT_FEAT_SUSPEND:
 			dev_dbg(hcd->self.controller, "ClearPortFeature: SUSPEND\n");
-			if (valid_port(wIndex)) {
+			if (valid_port(wIndex) && ohci_at91->sfr_regmap) {
 				ohci_at91_port_suspend(ohci_at91->sfr_regmap,
 						       0);
 				return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/ohci-exynos.c linux-libre-4.9.52-gnu/drivers/usb/host/ohci-exynos.c
--- linux-libre-4.9-gnu/drivers/usb/host/ohci-exynos.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/ohci-exynos.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,10 +66,12 @@ static int exynos_ohci_get_phy(struct de
 		if (IS_ERR(phy)) {
 			ret = PTR_ERR(phy);
 			if (ret == -EPROBE_DEFER) {
+				of_node_put(child);
 				return ret;
 			} else if (ret != -ENOSYS && ret != -ENODEV) {
 				dev_err(dev,
 					"Error retrieving usb2 phy: %d\n", ret);
+				of_node_put(child);
 				return ret;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/ohci.h linux-libre-4.9.52-gnu/drivers/usb/host/ohci.h
--- linux-libre-4.9-gnu/drivers/usb/host/ohci.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/ohci.h	2017-09-27 08:40:05.000000000 -0400
@@ -418,6 +418,7 @@ struct ohci_hcd {
 #define	OHCI_QUIRK_AMD_PLL	0x200			/* AMD PLL quirk*/
 #define	OHCI_QUIRK_AMD_PREFETCH	0x400			/* pre-fetch for ISO transfer */
 #define	OHCI_QUIRK_GLOBAL_SUSPEND	0x800		/* must suspend ports */
+#define	OHCI_QUIRK_QEMU		0x1000			/* relax timing expectations */
 
 	// there are also chip quirks/bugs in init logic
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/ohci-hcd.c linux-libre-4.9.52-gnu/drivers/usb/host/ohci-hcd.c
--- linux-libre-4.9-gnu/drivers/usb/host/ohci-hcd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/ohci-hcd.c	2017-09-27 08:40:05.000000000 -0400
@@ -231,7 +231,8 @@ static int ohci_urb_enqueue (
 
 		/* Start up the I/O watchdog timer, if it's not running */
 		if (!timer_pending(&ohci->io_watchdog) &&
-				list_empty(&ohci->eds_in_use)) {
+				list_empty(&ohci->eds_in_use) &&
+				!(ohci->flags & OHCI_QUIRK_QEMU)) {
 			ohci->prev_frame_no = ohci_frame_no(ohci);
 			mod_timer(&ohci->io_watchdog,
 					jiffies + IO_WATCHDOG_DELAY);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/ohci-pci.c linux-libre-4.9.52-gnu/drivers/usb/host/ohci-pci.c
--- linux-libre-4.9-gnu/drivers/usb/host/ohci-pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/ohci-pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -164,6 +164,15 @@ static int ohci_quirk_amd700(struct usb_
 	return 0;
 }
 
+static int ohci_quirk_qemu(struct usb_hcd *hcd)
+{
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+
+	ohci->flags |= OHCI_QUIRK_QEMU;
+	ohci_dbg(ohci, "enabled qemu quirk\n");
+	return 0;
+}
+
 /* List of quirks for OHCI */
 static const struct pci_device_id ohci_pci_quirks[] = {
 	{
@@ -214,6 +223,13 @@ static const struct pci_device_id ohci_p
 		PCI_DEVICE(PCI_VENDOR_ID_ATI, 0x4399),
 		.driver_data = (unsigned long)ohci_quirk_amd700,
 	},
+	{
+		.vendor		= PCI_VENDOR_ID_APPLE,
+		.device		= 0x003f,
+		.subvendor	= PCI_SUBVENDOR_ID_REDHAT_QUMRANET,
+		.subdevice	= PCI_SUBDEVICE_ID_QEMU,
+		.driver_data	= (unsigned long)ohci_quirk_qemu,
+	},
 
 	/* FIXME for some of the early AMD 760 southbridges, OHCI
 	 * won't work at all.  blacklist them.
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/pci-quirks.c linux-libre-4.9.52-gnu/drivers/usb/host/pci-quirks.c
--- linux-libre-4.9-gnu/drivers/usb/host/pci-quirks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/pci-quirks.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,6 +77,16 @@
 #define USB_INTEL_USB3_PSSEN   0xD8
 #define USB_INTEL_USB3PRM      0xDC
 
+/* ASMEDIA quirk use */
+#define ASMT_DATA_WRITE0_REG	0xF8
+#define ASMT_DATA_WRITE1_REG	0xFC
+#define ASMT_CONTROL_REG	0xE0
+#define ASMT_CONTROL_WRITE_BIT	0x02
+#define ASMT_WRITEREG_CMD	0x10423
+#define ASMT_FLOWCTL_ADDR	0xFA30
+#define ASMT_FLOWCTL_DATA	0xBA
+#define ASMT_PSEUDO_DATA	0
+
 /*
  * amd_chipset_gen values represent AMD different chipset generations
  */
@@ -88,6 +98,7 @@ enum amd_chipset_gen {
 	AMD_CHIPSET_HUDSON2,
 	AMD_CHIPSET_BOLTON,
 	AMD_CHIPSET_YANGTZE,
+	AMD_CHIPSET_TAISHAN,
 	AMD_CHIPSET_UNKNOWN,
 };
 
@@ -135,20 +146,26 @@ static int amd_chipset_sb_type_init(stru
 		pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
 				PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
 
-		if (!pinfo->smbus_dev) {
-			pinfo->sb_type.gen = NOT_AMD_CHIPSET;
-			return 0;
+		if (pinfo->smbus_dev) {
+			rev = pinfo->smbus_dev->revision;
+			if (rev >= 0x11 && rev <= 0x14)
+				pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
+			else if (rev >= 0x15 && rev <= 0x18)
+				pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
+			else if (rev >= 0x39 && rev <= 0x3a)
+				pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
+		} else {
+			pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+							  0x145c, NULL);
+			if (pinfo->smbus_dev) {
+				rev = pinfo->smbus_dev->revision;
+				pinfo->sb_type.gen = AMD_CHIPSET_TAISHAN;
+			} else {
+				pinfo->sb_type.gen = NOT_AMD_CHIPSET;
+				return 0;
+			}
 		}
-
-		rev = pinfo->smbus_dev->revision;
-		if (rev >= 0x11 && rev <= 0x14)
-			pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
-		else if (rev >= 0x15 && rev <= 0x18)
-			pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
-		else if (rev >= 0x39 && rev <= 0x3a)
-			pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
 	}
-
 	pinfo->sb_type.rev = rev;
 	return 1;
 }
@@ -250,11 +267,12 @@ int usb_hcd_amd_remote_wakeup_quirk(stru
 {
 	/* Make sure amd chipset type has already been initialized */
 	usb_amd_find_chipset_info();
-	if (amd_chipset.sb_type.gen != AMD_CHIPSET_YANGTZE)
-		return 0;
-
-	dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
-	return 1;
+	if (amd_chipset.sb_type.gen == AMD_CHIPSET_YANGTZE ||
+	    amd_chipset.sb_type.gen == AMD_CHIPSET_TAISHAN) {
+		dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
+		return 1;
+	}
+	return 0;
 }
 EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk);
 
@@ -412,6 +430,50 @@ void usb_amd_quirk_pll_disable(void)
 }
 EXPORT_SYMBOL_GPL(usb_amd_quirk_pll_disable);
 
+static int usb_asmedia_wait_write(struct pci_dev *pdev)
+{
+	unsigned long retry_count;
+	unsigned char value;
+
+	for (retry_count = 1000; retry_count > 0; --retry_count) {
+
+		pci_read_config_byte(pdev, ASMT_CONTROL_REG, &value);
+
+		if (value == 0xff) {
+			dev_err(&pdev->dev, "%s: check_ready ERROR", __func__);
+			return -EIO;
+		}
+
+		if ((value & ASMT_CONTROL_WRITE_BIT) == 0)
+			return 0;
+
+		usleep_range(40, 60);
+	}
+
+	dev_warn(&pdev->dev, "%s: check_write_ready timeout", __func__);
+	return -ETIMEDOUT;
+}
+
+void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev)
+{
+	if (usb_asmedia_wait_write(pdev) != 0)
+		return;
+
+	/* send command and address to device */
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_WRITEREG_CMD);
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_FLOWCTL_ADDR);
+	pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT);
+
+	if (usb_asmedia_wait_write(pdev) != 0)
+		return;
+
+	/* send data to device */
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_FLOWCTL_DATA);
+	pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_PSEUDO_DATA);
+	pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT);
+}
+EXPORT_SYMBOL_GPL(usb_asmedia_modifyflowcontrol);
+
 void usb_amd_quirk_pll_enable(void)
 {
 	usb_amd_quirk_pll(0);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/pci-quirks.h linux-libre-4.9.52-gnu/drivers/usb/host/pci-quirks.h
--- linux-libre-4.9-gnu/drivers/usb/host/pci-quirks.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/pci-quirks.h	2017-09-27 08:40:05.000000000 -0400
@@ -11,6 +11,7 @@ bool usb_amd_prefetch_quirk(void);
 void usb_amd_dev_put(void);
 void usb_amd_quirk_pll_disable(void);
 void usb_amd_quirk_pll_enable(void);
+void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev);
 void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev);
 void usb_disable_xhci_ports(struct pci_dev *xhci_pdev);
 void sb800_prefetch(struct device *dev, int on);
@@ -18,6 +19,7 @@ void sb800_prefetch(struct device *dev,
 struct pci_dev;
 static inline void usb_amd_quirk_pll_disable(void) {}
 static inline void usb_amd_quirk_pll_enable(void) {}
+static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {}
 static inline void usb_amd_dev_put(void) {}
 static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {}
 static inline void sb800_prefetch(struct device *dev, int on) {}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/r8a66597-hcd.c linux-libre-4.9.52-gnu/drivers/usb/host/r8a66597-hcd.c
--- linux-libre-4.9-gnu/drivers/usb/host/r8a66597-hcd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/r8a66597-hcd.c	2017-09-27 08:40:05.000000000 -0400
@@ -1269,7 +1269,7 @@ static void set_td_timer(struct r8a66597
 			time = 30;
 			break;
 		default:
-			time = 300;
+			time = 50;
 			break;
 		}
 
@@ -1785,6 +1785,7 @@ static void r8a66597_td_timer(unsigned l
 		pipe = td->pipe;
 		pipe_stop(r8a66597, pipe);
 
+		/* Select a different address or endpoint */
 		new_td = td;
 		do {
 			list_move_tail(&new_td->queue,
@@ -1794,7 +1795,8 @@ static void r8a66597_td_timer(unsigned l
 				new_td = td;
 				break;
 			}
-		} while (td != new_td && td->address == new_td->address);
+		} while (td != new_td && td->address == new_td->address &&
+			td->pipe->info.epnum == new_td->pipe->info.epnum);
 
 		start_transfer(r8a66597, new_td);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/uhci-pci.c linux-libre-4.9.52-gnu/drivers/usb/host/uhci-pci.c
--- linux-libre-4.9-gnu/drivers/usb/host/uhci-pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/uhci-pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -129,6 +129,10 @@ static int uhci_pci_init(struct usb_hcd
 	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP)
 		uhci->wait_for_hp = 1;
 
+	/* Intel controllers use non-PME wakeup signalling */
+	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL)
+		device_set_run_wake(uhci_dev(uhci), 1);
+
 	/* Set up pointers to PCI-specific functions */
 	uhci->reset_hc = uhci_pci_reset_hc;
 	uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci.c	2017-09-27 08:40:05.000000000 -0400
@@ -192,6 +192,9 @@ int xhci_reset(struct xhci_hcd *xhci)
 	if (ret)
 		return ret;
 
+	if (xhci->quirks & XHCI_ASMEDIA_MODIFY_FLOWCONTROL)
+		usb_asmedia_modifyflowcontrol(to_pci_dev(xhci_to_hcd(xhci)->self.controller));
+
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
 			 "Wait for controller to be ready for doorbell rings");
 	/*
@@ -1122,6 +1125,9 @@ int xhci_resume(struct xhci_hcd *xhci, b
 	if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !comp_timer_running)
 		compliance_mode_recovery_timer_init(xhci);
 
+	if (xhci->quirks & XHCI_ASMEDIA_MODIFY_FLOWCONTROL)
+		usb_asmedia_modifyflowcontrol(to_pci_dev(hcd->self.controller));
+
 	/* Re-enable port polling. */
 	xhci_dbg(xhci, "%s: starting port polling.\n", __func__);
 	set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
@@ -1529,19 +1535,6 @@ int xhci_urb_dequeue(struct usb_hcd *hcd
 		xhci_urb_free_priv(urb_priv);
 		return ret;
 	}
-	if ((xhci->xhc_state & XHCI_STATE_DYING) ||
-			(xhci->xhc_state & XHCI_STATE_HALTED)) {
-		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
-				"Ep 0x%x: URB %p to be canceled on "
-				"non-responsive xHCI host.",
-				urb->ep->desc.bEndpointAddress, urb);
-		/* Let the stop endpoint command watchdog timer (which set this
-		 * state) finish cleaning up the endpoint TD lists.  We must
-		 * have caught it in the middle of dropping a lock and giving
-		 * back an URB.
-		 */
-		goto done;
-	}
 
 	ep_index = xhci_get_endpoint_index(&urb->ep->desc);
 	ep = &xhci->devs[urb->dev->slot_id]->eps[ep_index];
@@ -3783,8 +3776,10 @@ static int xhci_setup_device(struct usb_
 
 	mutex_lock(&xhci->mutex);
 
-	if (xhci->xhc_state)	/* dying, removing or halted */
+	if (xhci->xhc_state) {	/* dying, removing or halted */
+		ret = -ESHUTDOWN;
 		goto out;
+	}
 
 	if (!udev->slot_id) {
 		xhci_dbg_trace(xhci, trace_xhci_dbg_address,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci-dbg.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci-dbg.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci-dbg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci-dbg.c	2017-09-27 08:40:05.000000000 -0400
@@ -111,7 +111,7 @@ static void xhci_print_cap_regs(struct x
 	xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK);
 
 	/* xhci 1.1 controllers have the HCCPARAMS2 register */
-	if (hci_version > 100) {
+	if (hci_version > 0x100) {
 		temp = readl(&xhci->cap_regs->hcc_params2);
 		xhci_dbg(xhci, "HCC PARAMS2 0x%x:\n", (unsigned int) temp);
 		xhci_dbg(xhci, "  HC %s Force save context capability",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci.h linux-libre-4.9.52-gnu/drivers/usb/host/xhci.h
--- linux-libre-4.9-gnu/drivers/usb/host/xhci.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci.h	2017-09-27 08:40:05.000000000 -0400
@@ -1571,7 +1571,8 @@ struct xhci_hcd {
 #define CMD_RING_STATE_STOPPED         (1 << 2)
 	struct list_head        cmd_list;
 	unsigned int		cmd_ring_reserved_trbs;
-	struct timer_list	cmd_timer;
+	struct delayed_work	cmd_timer;
+	struct completion	cmd_ring_stop_completion;
 	struct xhci_command	*current_cmd;
 	struct xhci_ring	*event_ring;
 	struct xhci_erst	erst;
@@ -1656,6 +1657,12 @@ struct xhci_hcd {
 #define XHCI_SSIC_PORT_UNUSED	(1 << 22)
 #define XHCI_NO_64BIT_SUPPORT	(1 << 23)
 #define XHCI_MISSING_CAS	(1 << 24)
+/* For controller with a broken Port Disable implementation */
+#define XHCI_BROKEN_PORT_PED	(1 << 25)
+#define XHCI_LIMIT_ENDPOINT_INTERVAL_7	(1 << 26)
+#define XHCI_U2_DISABLE_WAKE	(1 << 27)
+#define XHCI_ASMEDIA_MODIFY_FLOWCONTROL	(1 << 28)
+
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
 	/* There are two roothubs to keep track of bus suspend info for */
@@ -1941,7 +1948,7 @@ void xhci_queue_config_ep_quirk(struct x
 		unsigned int slot_id, unsigned int ep_index,
 		struct xhci_dequeue_state *deq_state);
 void xhci_stop_endpoint_command_watchdog(unsigned long arg);
-void xhci_handle_command_timeout(unsigned long data);
+void xhci_handle_command_timeout(struct work_struct *work);
 
 void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
 		unsigned int ep_index, unsigned int stream_id);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci-hub.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci-hub.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci-hub.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci-hub.c	2017-09-27 08:40:05.000000000 -0400
@@ -458,6 +458,12 @@ static void xhci_disable_port(struct usb
 		return;
 	}
 
+	if (xhci->quirks & XHCI_BROKEN_PORT_PED) {
+		xhci_dbg(xhci,
+			 "Broken Port Enabled/Disabled, ignoring port disable request.\n");
+		return;
+	}
+
 	/* Write 1 to disable the port */
 	writel(port_status | PORT_PE, addr);
 	port_status = readl(addr);
@@ -777,6 +783,9 @@ static u32 xhci_get_port_status(struct u
 			clear_bit(wIndex, &bus_state->resuming_ports);
 
 			set_bit(wIndex, &bus_state->rexit_ports);
+
+			xhci_test_and_clear_bit(xhci, port_array, wIndex,
+						PORT_PLC);
 			xhci_set_link_state(xhci, port_array, wIndex,
 					XDEV_U0);
 
@@ -1342,6 +1351,9 @@ int xhci_bus_suspend(struct usb_hcd *hcd
 				t2 |= PORT_WKOC_E | PORT_WKCONN_E;
 				t2 &= ~PORT_WKDISC_E;
 			}
+			if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) &&
+			    (hcd->speed < HCD_USB3))
+				t2 &= ~PORT_WAKE_BITS;
 		} else
 			t2 &= ~PORT_WAKE_BITS;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci-mem.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci-mem.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci-mem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci-mem.c	2017-09-27 08:40:05.000000000 -0400
@@ -56,7 +56,7 @@ static struct xhci_segment *xhci_segment
 	}
 
 	if (max_packet) {
-		seg->bounce_buf = kzalloc(max_packet, flags | GFP_DMA);
+		seg->bounce_buf = kzalloc(max_packet, flags);
 		if (!seg->bounce_buf) {
 			dma_pool_free(xhci->segment_pool, seg->trbs, dma);
 			kfree(seg);
@@ -979,6 +979,40 @@ void xhci_free_virt_device(struct xhci_h
 	xhci->devs[slot_id] = NULL;
 }
 
+/*
+ * Free a virt_device structure.
+ * If the virt_device added a tt_info (a hub) and has children pointing to
+ * that tt_info, then free the child first. Recursive.
+ * We can't rely on udev at this point to find child-parent relationships.
+ */
+void xhci_free_virt_devices_depth_first(struct xhci_hcd *xhci, int slot_id)
+{
+	struct xhci_virt_device *vdev;
+	struct list_head *tt_list_head;
+	struct xhci_tt_bw_info *tt_info, *next;
+	int i;
+
+	vdev = xhci->devs[slot_id];
+	if (!vdev)
+		return;
+
+	tt_list_head = &(xhci->rh_bw[vdev->real_port - 1].tts);
+	list_for_each_entry_safe(tt_info, next, tt_list_head, tt_list) {
+		/* is this a hub device that added a tt_info to the tts list */
+		if (tt_info->slot_id == slot_id) {
+			/* are any devices using this tt_info? */
+			for (i = 1; i < HCS_MAX_SLOTS(xhci->hcs_params1); i++) {
+				vdev = xhci->devs[i];
+				if (vdev && (vdev->tt_info == tt_info))
+					xhci_free_virt_devices_depth_first(
+						xhci, i);
+			}
+		}
+	}
+	/* we are now at a leaf device */
+	xhci_free_virt_device(xhci, slot_id);
+}
+
 int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id,
 		struct usb_device *udev, gfp_t flags)
 {
@@ -1460,6 +1494,17 @@ int xhci_endpoint_init(struct xhci_hcd *
 	 */
 	max_esit_payload = xhci_get_max_esit_payload(udev, ep);
 	interval = xhci_get_endpoint_interval(udev, ep);
+
+	/* Periodic endpoint bInterval limit quirk */
+	if (usb_endpoint_xfer_int(&ep->desc) ||
+	    usb_endpoint_xfer_isoc(&ep->desc)) {
+		if ((xhci->quirks & XHCI_LIMIT_ENDPOINT_INTERVAL_7) &&
+		    udev->speed >= USB_SPEED_HIGH &&
+		    interval >= 7) {
+			interval = 6;
+		}
+	}
+
 	mult = xhci_get_endpoint_mult(udev, ep);
 	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
 	max_burst = xhci_get_endpoint_max_burst(udev, ep);
@@ -1676,7 +1721,7 @@ static int scratchpad_alloc(struct xhci_
 	xhci->dcbaa->dev_context_ptrs[0] = cpu_to_le64(xhci->scratchpad->sp_dma);
 	for (i = 0; i < num_sp; i++) {
 		dma_addr_t dma;
-		void *buf = dma_alloc_coherent(dev, xhci->page_size, &dma,
+		void *buf = dma_zalloc_coherent(dev, xhci->page_size, &dma,
 				flags);
 		if (!buf)
 			goto fail_sp5;
@@ -1796,7 +1841,7 @@ void xhci_mem_cleanup(struct xhci_hcd *x
 	int size;
 	int i, j, num_ports;
 
-	del_timer_sync(&xhci->cmd_timer);
+	cancel_delayed_work_sync(&xhci->cmd_timer);
 
 	/* Free the Event Ring Segment Table and the actual Event Ring */
 	size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries);
@@ -1829,8 +1874,8 @@ void xhci_mem_cleanup(struct xhci_hcd *x
 		}
 	}
 
-	for (i = 1; i < MAX_HC_SLOTS; ++i)
-		xhci_free_virt_device(xhci, i);
+	for (i = HCS_MAX_SLOTS(xhci->hcs_params1); i > 0; i--)
+		xhci_free_virt_devices_depth_first(xhci, i);
 
 	dma_pool_destroy(xhci->segment_pool);
 	xhci->segment_pool = NULL;
@@ -2078,11 +2123,12 @@ static void xhci_add_in_port(struct xhci
 {
 	u32 temp, port_offset, port_count;
 	int i;
-	u8 major_revision;
+	u8 major_revision, minor_revision;
 	struct xhci_hub *rhub;
 
 	temp = readl(addr);
 	major_revision = XHCI_EXT_PORT_MAJOR(temp);
+	minor_revision = XHCI_EXT_PORT_MINOR(temp);
 
 	if (major_revision == 0x03) {
 		rhub = &xhci->usb3_rhub;
@@ -2096,7 +2142,9 @@ static void xhci_add_in_port(struct xhci
 		return;
 	}
 	rhub->maj_rev = XHCI_EXT_PORT_MAJOR(temp);
-	rhub->min_rev = XHCI_EXT_PORT_MINOR(temp);
+
+	if (rhub->min_rev < minor_revision)
+		rhub->min_rev = minor_revision;
 
 	/* Port offset and count in the third dword, see section 7.2 */
 	temp = readl(addr + 2);
@@ -2343,9 +2391,9 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 
 	INIT_LIST_HEAD(&xhci->cmd_list);
 
-	/* init command timeout timer */
-	setup_timer(&xhci->cmd_timer, xhci_handle_command_timeout,
-		    (unsigned long)xhci);
+	/* init command timeout work */
+	INIT_DELAYED_WORK(&xhci->cmd_timer, xhci_handle_command_timeout);
+	init_completion(&xhci->cmd_ring_stop_completion);
 
 	page_size = readl(&xhci->op_regs->page_size);
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
@@ -2384,7 +2432,7 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 	 * "physically contiguous and 64-byte (cache line) aligned".
 	 */
 	xhci->dcbaa = dma_alloc_coherent(dev, sizeof(*xhci->dcbaa), &dma,
-			GFP_KERNEL);
+			flags);
 	if (!xhci->dcbaa)
 		goto fail;
 	memset(xhci->dcbaa, 0, sizeof *(xhci->dcbaa));
@@ -2441,7 +2489,7 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 		(xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) |
 		xhci->cmd_ring->cycle_state;
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
-			"// Setting command ring address to 0x%x", val);
+			"// Setting command ring address to 0x%016llx", val_64);
 	xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring);
 	xhci_dbg_cmd_ptrs(xhci);
 
@@ -2480,7 +2528,7 @@ int xhci_mem_init(struct xhci_hcd *xhci,
 
 	xhci->erst.entries = dma_alloc_coherent(dev,
 			sizeof(struct xhci_erst_entry) * ERST_NUM_SEGS, &dma,
-			GFP_KERNEL);
+			flags);
 	if (!xhci->erst.entries)
 		goto fail;
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci-mtk.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci-mtk.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci-mtk.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci-mtk.c	2017-09-27 08:40:05.000000000 -0400
@@ -560,8 +560,10 @@ static int xhci_mtk_probe(struct platfor
 		goto disable_ldos;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
+	if (irq < 0) {
+		ret = irq;
 		goto disable_clk;
+	}
 
 	/* Initialize dma_mask and coherent_dma_mask to 32-bits */
 	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci-pci.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci-pci.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci-pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci-pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -52,6 +52,14 @@
 #define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI		0x0aa8
 #define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI		0x1aa8
 #define PCI_DEVICE_ID_INTEL_APL_XHCI			0x5aa8
+#define PCI_DEVICE_ID_INTEL_DNV_XHCI			0x19d0
+
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_4			0x43b9
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_2			0x43bb
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
+
+#define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
 
 static const char hcd_name[] = "xhci_hcd";
 
@@ -134,6 +142,13 @@ static void xhci_pci_quirks(struct devic
 	if (pdev->vendor == PCI_VENDOR_ID_AMD)
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
+	if ((pdev->vendor == PCI_VENDOR_ID_AMD) &&
+		((pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4) ||
+		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_3) ||
+		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_2) ||
+		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_1)))
+		xhci->quirks |= XHCI_U2_DISABLE_WAKE;
+
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 		xhci->quirks |= XHCI_INTEL_HOST;
@@ -165,7 +180,9 @@ static void xhci_pci_quirks(struct devic
 		 pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
 		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI ||
-		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI)) {
+		 pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
+		 pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI)) {
 		xhci->quirks |= XHCI_PME_STUCK_QUIRK;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
@@ -174,7 +191,8 @@ static void xhci_pci_quirks(struct devic
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
 	    (pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
-	     pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI))
+	     pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
+	     pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI))
 		xhci->quirks |= XHCI_MISSING_CAS;
 
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
@@ -197,6 +215,16 @@ static void xhci_pci_quirks(struct devic
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 			pdev->device == 0x1042)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
+	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+			pdev->device == 0x1142)
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+
+	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)
+		xhci->quirks |= XHCI_ASMEDIA_MODIFY_FLOWCONTROL;
+
+	if (pdev->vendor == PCI_VENDOR_ID_TI && pdev->device == 0x8241)
+		xhci->quirks |= XHCI_LIMIT_ENDPOINT_INTERVAL_7;
 
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
 		xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci-plat.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci-plat.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci-plat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci-plat.c	2017-09-27 08:40:05.000000000 -0400
@@ -153,7 +153,7 @@ static int xhci_plat_probe(struct platfo
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-		return -ENODEV;
+		return irq;
 
 	/* Try to set 64-bit DMA first */
 	if (WARN_ON(!pdev->dev.dma_mask))
@@ -223,8 +223,8 @@ static int xhci_plat_probe(struct platfo
 	if (device_property_read_bool(&pdev->dev, "usb3-lpm-capable"))
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 
-	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
-		xhci->shared_hcd->can_do_streams = 1;
+	if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped"))
+		xhci->quirks |= XHCI_BROKEN_PORT_PED;
 
 	hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
 	if (IS_ERR(hcd->usb_phy)) {
@@ -242,6 +242,9 @@ static int xhci_plat_probe(struct platfo
 	if (ret)
 		goto disable_usb_phy;
 
+	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
+		xhci->shared_hcd->can_do_streams = 1;
+
 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
 	if (ret)
 		goto dealloc_usb2_hcd;
@@ -274,6 +277,8 @@ static int xhci_plat_remove(struct platf
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	struct clk *clk = xhci->clk;
 
+	xhci->xhc_state |= XHCI_STATE_REMOVING;
+
 	usb_remove_hcd(xhci->shared_hcd);
 	usb_phy_shutdown(hcd->usb_phy);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/host/xhci-ring.c linux-libre-4.9.52-gnu/drivers/usb/host/xhci-ring.c
--- linux-libre-4.9-gnu/drivers/usb/host/xhci-ring.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/host/xhci-ring.c	2017-09-27 08:40:05.000000000 -0400
@@ -260,23 +260,76 @@ void xhci_ring_cmd_db(struct xhci_hcd *x
 	readl(&xhci->dba->doorbell[0]);
 }
 
-static int xhci_abort_cmd_ring(struct xhci_hcd *xhci)
+static bool xhci_mod_cmd_timer(struct xhci_hcd *xhci, unsigned long delay)
+{
+	return mod_delayed_work(system_wq, &xhci->cmd_timer, delay);
+}
+
+static struct xhci_command *xhci_next_queued_cmd(struct xhci_hcd *xhci)
+{
+	return list_first_entry_or_null(&xhci->cmd_list, struct xhci_command,
+					cmd_list);
+}
+
+/*
+ * Turn all commands on command ring with status set to "aborted" to no-op trbs.
+ * If there are other commands waiting then restart the ring and kick the timer.
+ * This must be called with command ring stopped and xhci->lock held.
+ */
+static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
+					 struct xhci_command *cur_cmd)
+{
+	struct xhci_command *i_cmd;
+	u32 cycle_state;
+
+	/* Turn all aborted commands in list to no-ops, then restart */
+	list_for_each_entry(i_cmd, &xhci->cmd_list, cmd_list) {
+
+		if (i_cmd->status != COMP_CMD_ABORT)
+			continue;
+
+		i_cmd->status = COMP_CMD_STOP;
+
+		xhci_dbg(xhci, "Turn aborted command %p to no-op\n",
+			 i_cmd->command_trb);
+		/* get cycle state from the original cmd trb */
+		cycle_state = le32_to_cpu(
+			i_cmd->command_trb->generic.field[3]) &	TRB_CYCLE;
+		/* modify the command trb to no-op command */
+		i_cmd->command_trb->generic.field[0] = 0;
+		i_cmd->command_trb->generic.field[1] = 0;
+		i_cmd->command_trb->generic.field[2] = 0;
+		i_cmd->command_trb->generic.field[3] = cpu_to_le32(
+			TRB_TYPE(TRB_CMD_NOOP) | cycle_state);
+
+		/*
+		 * caller waiting for completion is called when command
+		 *  completion event is received for these no-op commands
+		 */
+	}
+
+	xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
+
+	/* ring command ring doorbell to restart the command ring */
+	if ((xhci->cmd_ring->dequeue != xhci->cmd_ring->enqueue) &&
+	    !(xhci->xhc_state & XHCI_STATE_DYING)) {
+		xhci->current_cmd = cur_cmd;
+		xhci_mod_cmd_timer(xhci, XHCI_CMD_DEFAULT_TIMEOUT);
+		xhci_ring_cmd_db(xhci);
+	}
+}
+
+/* Must be called with xhci->lock held, releases and aquires lock back */
+static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags)
 {
 	u64 temp_64;
 	int ret;
 
 	xhci_dbg(xhci, "Abort command ring\n");
 
-	temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
-	xhci->cmd_ring_state = CMD_RING_STATE_ABORTED;
+	reinit_completion(&xhci->cmd_ring_stop_completion);
 
-	/*
-	 * Writing the CMD_RING_ABORT bit should cause a cmd completion event,
-	 * however on some host hw the CMD_RING_RUNNING bit is correctly cleared
-	 * but the completion event in never sent. Use the cmd timeout timer to
-	 * handle those cases. Use twice the time to cover the bit polling retry
-	 */
-	mod_timer(&xhci->cmd_timer, jiffies + (2 * XHCI_CMD_DEFAULT_TIMEOUT));
+	temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
 	xhci_write_64(xhci, temp_64 | CMD_RING_ABORT,
 			&xhci->op_regs->cmd_ring);
 
@@ -296,16 +349,30 @@ static int xhci_abort_cmd_ring(struct xh
 		udelay(1000);
 		ret = xhci_handshake(&xhci->op_regs->cmd_ring,
 				     CMD_RING_RUNNING, 0, 3 * 1000 * 1000);
-		if (ret == 0)
-			return 0;
-
-		xhci_err(xhci, "Stopped the command ring failed, "
-				"maybe the host is dead\n");
-		del_timer(&xhci->cmd_timer);
-		xhci->xhc_state |= XHCI_STATE_DYING;
-		xhci_quiesce(xhci);
-		xhci_halt(xhci);
-		return -ESHUTDOWN;
+		if (ret < 0) {
+			xhci_err(xhci, "Stopped the command ring failed, "
+				 "maybe the host is dead\n");
+			xhci->xhc_state |= XHCI_STATE_DYING;
+			xhci_quiesce(xhci);
+			xhci_halt(xhci);
+			return -ESHUTDOWN;
+		}
+	}
+	/*
+	 * Writing the CMD_RING_ABORT bit should cause a cmd completion event,
+	 * however on some host hw the CMD_RING_RUNNING bit is correctly cleared
+	 * but the completion event in never sent. Wait 2 secs (arbitrary
+	 * number) to handle those cases after negation of CMD_RING_RUNNING.
+	 */
+	spin_unlock_irqrestore(&xhci->lock, flags);
+	ret = wait_for_completion_timeout(&xhci->cmd_ring_stop_completion,
+					  msecs_to_jiffies(2000));
+	spin_lock_irqsave(&xhci->lock, flags);
+	if (!ret) {
+		xhci_dbg(xhci, "No stop event for abort, ring start fail?\n");
+		xhci_cleanup_command_queue(xhci);
+	} else {
+		xhci_handle_stopped_cmd_ring(xhci, xhci_next_queued_cmd(xhci));
 	}
 
 	return 0;
@@ -793,13 +860,16 @@ static void xhci_kill_endpoint_urbs(stru
 			(ep->ep_state & EP_GETTING_NO_STREAMS)) {
 		int stream_id;
 
-		for (stream_id = 0; stream_id < ep->stream_info->num_streams;
+		for (stream_id = 1; stream_id < ep->stream_info->num_streams;
 				stream_id++) {
+			ring = ep->stream_info->stream_rings[stream_id];
+			if (!ring)
+				continue;
+
 			xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 					"Killing URBs for slot ID %u, ep index %u, stream %u",
-					slot_id, ep_index, stream_id + 1);
-			xhci_kill_ring_urbs(xhci,
-					ep->stream_info->stream_rings[stream_id]);
+					slot_id, ep_index, stream_id);
+			xhci_kill_ring_urbs(xhci, ring);
 		}
 	} else {
 		ring = ep->ring;
@@ -850,17 +920,6 @@ void xhci_stop_endpoint_command_watchdog
 	spin_lock_irqsave(&xhci->lock, flags);
 
 	ep->stop_cmds_pending--;
-	if (xhci->xhc_state & XHCI_STATE_REMOVING) {
-		spin_unlock_irqrestore(&xhci->lock, flags);
-		return;
-	}
-	if (xhci->xhc_state & XHCI_STATE_DYING) {
-		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
-				"Stop EP timer ran, but another timer marked "
-				"xHCI as DYING, exiting.");
-		spin_unlock_irqrestore(&xhci->lock, flags);
-		return;
-	}
 	if (!(ep->stop_cmds_pending == 0 && (ep->ep_state & EP_HALT_PENDING))) {
 		xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb,
 				"Stop EP timer ran, but no command pending, "
@@ -1211,101 +1270,62 @@ void xhci_cleanup_command_queue(struct x
 		xhci_complete_del_and_free_cmd(cur_cmd, COMP_CMD_ABORT);
 }
 
-/*
- * Turn all commands on command ring with status set to "aborted" to no-op trbs.
- * If there are other commands waiting then restart the ring and kick the timer.
- * This must be called with command ring stopped and xhci->lock held.
- */
-static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
-					 struct xhci_command *cur_cmd)
-{
-	struct xhci_command *i_cmd, *tmp_cmd;
-	u32 cycle_state;
-
-	/* Turn all aborted commands in list to no-ops, then restart */
-	list_for_each_entry_safe(i_cmd, tmp_cmd, &xhci->cmd_list,
-				 cmd_list) {
-
-		if (i_cmd->status != COMP_CMD_ABORT)
-			continue;
-
-		i_cmd->status = COMP_CMD_STOP;
-
-		xhci_dbg(xhci, "Turn aborted command %p to no-op\n",
-			 i_cmd->command_trb);
-		/* get cycle state from the original cmd trb */
-		cycle_state = le32_to_cpu(
-			i_cmd->command_trb->generic.field[3]) &	TRB_CYCLE;
-		/* modify the command trb to no-op command */
-		i_cmd->command_trb->generic.field[0] = 0;
-		i_cmd->command_trb->generic.field[1] = 0;
-		i_cmd->command_trb->generic.field[2] = 0;
-		i_cmd->command_trb->generic.field[3] = cpu_to_le32(
-			TRB_TYPE(TRB_CMD_NOOP) | cycle_state);
-
-		/*
-		 * caller waiting for completion is called when command
-		 *  completion event is received for these no-op commands
-		 */
-	}
-
-	xhci->cmd_ring_state = CMD_RING_STATE_RUNNING;
-
-	/* ring command ring doorbell to restart the command ring */
-	if ((xhci->cmd_ring->dequeue != xhci->cmd_ring->enqueue) &&
-	    !(xhci->xhc_state & XHCI_STATE_DYING)) {
-		xhci->current_cmd = cur_cmd;
-		mod_timer(&xhci->cmd_timer, jiffies + XHCI_CMD_DEFAULT_TIMEOUT);
-		xhci_ring_cmd_db(xhci);
-	}
-	return;
-}
-
-
-void xhci_handle_command_timeout(unsigned long data)
+void xhci_handle_command_timeout(struct work_struct *work)
 {
 	struct xhci_hcd *xhci;
 	int ret;
 	unsigned long flags;
 	u64 hw_ring_state;
-	bool second_timeout = false;
-	xhci = (struct xhci_hcd *) data;
 
-	/* mark this command to be cancelled */
+	xhci = container_of(to_delayed_work(work), struct xhci_hcd, cmd_timer);
+
 	spin_lock_irqsave(&xhci->lock, flags);
-	if (xhci->current_cmd) {
-		if (xhci->current_cmd->status == COMP_CMD_ABORT)
-			second_timeout = true;
-		xhci->current_cmd->status = COMP_CMD_ABORT;
+
+	/*
+	 * If timeout work is pending, or current_cmd is NULL, it means we
+	 * raced with command completion. Command is handled so just return.
+	 */
+	if (!xhci->current_cmd || delayed_work_pending(&xhci->cmd_timer)) {
+		spin_unlock_irqrestore(&xhci->lock, flags);
+		return;
 	}
+	/* mark this command to be cancelled */
+	xhci->current_cmd->status = COMP_CMD_ABORT;
 
 	/* Make sure command ring is running before aborting it */
 	hw_ring_state = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
 	if ((xhci->cmd_ring_state & CMD_RING_STATE_RUNNING) &&
 	    (hw_ring_state & CMD_RING_RUNNING))  {
-		spin_unlock_irqrestore(&xhci->lock, flags);
+		/* Prevent new doorbell, and start command abort */
+		xhci->cmd_ring_state = CMD_RING_STATE_ABORTED;
 		xhci_dbg(xhci, "Command timeout\n");
-		ret = xhci_abort_cmd_ring(xhci);
+		ret = xhci_abort_cmd_ring(xhci, flags);
 		if (unlikely(ret == -ESHUTDOWN)) {
 			xhci_err(xhci, "Abort command ring failed\n");
 			xhci_cleanup_command_queue(xhci);
+			spin_unlock_irqrestore(&xhci->lock, flags);
 			usb_hc_died(xhci_to_hcd(xhci)->primary_hcd);
 			xhci_dbg(xhci, "xHCI host controller is dead.\n");
+
+			return;
 		}
-		return;
+
+		goto time_out_completed;
 	}
 
-	/* command ring failed to restart, or host removed. Bail out */
-	if (second_timeout || xhci->xhc_state & XHCI_STATE_REMOVING) {
-		spin_unlock_irqrestore(&xhci->lock, flags);
-		xhci_dbg(xhci, "command timed out twice, ring start fail?\n");
+	/* host removed. Bail out */
+	if (xhci->xhc_state & XHCI_STATE_REMOVING) {
+		xhci_dbg(xhci, "host removed, ring start fail?\n");
 		xhci_cleanup_command_queue(xhci);
-		return;
+
+		goto time_out_completed;
 	}
 
 	/* command timeout on stopped ring, ring can't be aborted */
 	xhci_dbg(xhci, "Command timeout on stopped ring\n");
 	xhci_handle_stopped_cmd_ring(xhci, xhci->current_cmd);
+
+time_out_completed:
 	spin_unlock_irqrestore(&xhci->lock, flags);
 	return;
 }
@@ -1338,7 +1358,7 @@ static void handle_cmd_completion(struct
 
 	cmd = list_entry(xhci->cmd_list.next, struct xhci_command, cmd_list);
 
-	del_timer(&xhci->cmd_timer);
+	cancel_delayed_work(&xhci->cmd_timer);
 
 	trace_xhci_cmd_completion(cmd_trb, (struct xhci_generic_trb *) event);
 
@@ -1346,7 +1366,7 @@ static void handle_cmd_completion(struct
 
 	/* If CMD ring stopped we own the trbs between enqueue and dequeue */
 	if (cmd_comp_code == COMP_CMD_STOP) {
-		xhci_handle_stopped_cmd_ring(xhci, cmd);
+		complete_all(&xhci->cmd_ring_stop_completion);
 		return;
 	}
 
@@ -1364,8 +1384,11 @@ static void handle_cmd_completion(struct
 	 */
 	if (cmd_comp_code == COMP_CMD_ABORT) {
 		xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
-		if (cmd->status == COMP_CMD_ABORT)
+		if (cmd->status == COMP_CMD_ABORT) {
+			if (xhci->current_cmd == cmd)
+				xhci->current_cmd = NULL;
 			goto event_handled;
+		}
 	}
 
 	cmd_type = TRB_FIELD_TO_TYPE(le32_to_cpu(cmd_trb->generic.field[3]));
@@ -1426,7 +1449,9 @@ static void handle_cmd_completion(struct
 	if (cmd->cmd_list.next != &xhci->cmd_list) {
 		xhci->current_cmd = list_entry(cmd->cmd_list.next,
 					       struct xhci_command, cmd_list);
-		mod_timer(&xhci->cmd_timer, jiffies + XHCI_CMD_DEFAULT_TIMEOUT);
+		xhci_mod_cmd_timer(xhci, XHCI_CMD_DEFAULT_TIMEOUT);
+	} else if (xhci->current_cmd == cmd) {
+		xhci->current_cmd = NULL;
 	}
 
 event_handled:
@@ -3920,9 +3945,9 @@ static int queue_command(struct xhci_hcd
 
 	/* if there are no other commands queued we start the timeout timer */
 	if (xhci->cmd_list.next == &cmd->cmd_list &&
-	    !timer_pending(&xhci->cmd_timer)) {
+	    !delayed_work_pending(&xhci->cmd_timer)) {
 		xhci->current_cmd = cmd;
-		mod_timer(&xhci->cmd_timer, jiffies + XHCI_CMD_DEFAULT_TIMEOUT);
+		xhci_mod_cmd_timer(xhci, XHCI_CMD_DEFAULT_TIMEOUT);
 	}
 
 	queue_trb(xhci, xhci->cmd_ring, false, field1, field2, field3,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/misc/chaoskey.c linux-libre-4.9.52-gnu/drivers/usb/misc/chaoskey.c
--- linux-libre-4.9-gnu/drivers/usb/misc/chaoskey.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/misc/chaoskey.c	2017-09-27 08:40:05.000000000 -0400
@@ -194,7 +194,7 @@ static int chaoskey_probe(struct usb_int
 
 	dev->in_ep = in_ep;
 
-	if (udev->descriptor.idVendor != ALEA_VENDOR_ID)
+	if (le16_to_cpu(udev->descriptor.idVendor) != ALEA_VENDOR_ID)
 		dev->reads_started = 1;
 
 	dev->size = size;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/misc/idmouse.c linux-libre-4.9.52-gnu/drivers/usb/misc/idmouse.c
--- linux-libre-4.9-gnu/drivers/usb/misc/idmouse.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/misc/idmouse.c	2017-09-27 08:40:05.000000000 -0400
@@ -346,6 +346,9 @@ static int idmouse_probe(struct usb_inte
 	if (iface_desc->desc.bInterfaceClass != 0x0A)
 		return -ENODEV;
 
+	if (iface_desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	/* allocate memory for our device state and initialize it */
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (dev == NULL)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/misc/iowarrior.c linux-libre-4.9.52-gnu/drivers/usb/misc/iowarrior.c
--- linux-libre-4.9-gnu/drivers/usb/misc/iowarrior.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/misc/iowarrior.c	2017-09-27 08:40:05.000000000 -0400
@@ -554,7 +554,7 @@ static long iowarrior_ioctl(struct file
 			info.revision = le16_to_cpu(dev->udev->descriptor.bcdDevice);
 
 			/* 0==UNKNOWN, 1==LOW(usb1.1) ,2=FULL(usb1.1), 3=HIGH(usb2.0) */
-			info.speed = le16_to_cpu(dev->udev->speed);
+			info.speed = dev->udev->speed;
 			info.if_num = dev->interface->cur_altsetting->desc.bInterfaceNumber;
 			info.report_size = dev->report_size;
 
@@ -781,12 +781,6 @@ static int iowarrior_probe(struct usb_in
 	iface_desc = interface->cur_altsetting;
 	dev->product_id = le16_to_cpu(udev->descriptor.idProduct);
 
-	if (iface_desc->desc.bNumEndpoints < 1) {
-		dev_err(&interface->dev, "Invalid number of endpoints\n");
-		retval = -EINVAL;
-		goto error;
-	}
-
 	/* set up the endpoint information */
 	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
 		endpoint = &iface_desc->endpoint[i].desc;
@@ -797,6 +791,21 @@ static int iowarrior_probe(struct usb_in
 			/* this one will match for the IOWarrior56 only */
 			dev->int_out_endpoint = endpoint;
 	}
+
+	if (!dev->int_in_endpoint) {
+		dev_err(&interface->dev, "no interrupt-in endpoint found\n");
+		retval = -ENODEV;
+		goto error;
+	}
+
+	if (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56) {
+		if (!dev->int_out_endpoint) {
+			dev_err(&interface->dev, "no interrupt-out endpoint found\n");
+			retval = -ENODEV;
+			goto error;
+		}
+	}
+
 	/* we have to check the report_size often, so remember it in the endianness suitable for our machine */
 	dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint);
 	if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) &&
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/misc/legousbtower.c linux-libre-4.9.52-gnu/drivers/usb/misc/legousbtower.c
--- linux-libre-4.9-gnu/drivers/usb/misc/legousbtower.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/misc/legousbtower.c	2017-09-27 08:40:05.000000000 -0400
@@ -317,9 +317,16 @@ static int tower_open (struct inode *ino
 	int subminor;
 	int retval = 0;
 	struct usb_interface *interface;
-	struct tower_reset_reply reset_reply;
+	struct tower_reset_reply *reset_reply;
 	int result;
 
+	reset_reply = kmalloc(sizeof(*reset_reply), GFP_KERNEL);
+
+	if (!reset_reply) {
+		retval = -ENOMEM;
+		goto exit;
+	}
+
 	nonseekable_open(inode, file);
 	subminor = iminor(inode);
 
@@ -364,8 +371,8 @@ static int tower_open (struct inode *ino
 				  USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
 				  0,
 				  0,
-				  &reset_reply,
-				  sizeof(reset_reply),
+				  reset_reply,
+				  sizeof(*reset_reply),
 				  1000);
 	if (result < 0) {
 		dev_err(&dev->udev->dev,
@@ -406,6 +413,7 @@ unlock_exit:
 	mutex_unlock(&dev->lock);
 
 exit:
+	kfree(reset_reply);
 	return retval;
 }
 
@@ -808,7 +816,7 @@ static int tower_probe (struct usb_inter
 	struct lego_usb_tower *dev = NULL;
 	struct usb_host_interface *iface_desc;
 	struct usb_endpoint_descriptor* endpoint;
-	struct tower_get_version_reply get_version_reply;
+	struct tower_get_version_reply *get_version_reply = NULL;
 	int i;
 	int retval = -ENOMEM;
 	int result;
@@ -886,6 +894,13 @@ static int tower_probe (struct usb_inter
 	dev->interrupt_in_interval = interrupt_in_interval ? interrupt_in_interval : dev->interrupt_in_endpoint->bInterval;
 	dev->interrupt_out_interval = interrupt_out_interval ? interrupt_out_interval : dev->interrupt_out_endpoint->bInterval;
 
+	get_version_reply = kmalloc(sizeof(*get_version_reply), GFP_KERNEL);
+
+	if (!get_version_reply) {
+		retval = -ENOMEM;
+		goto error;
+	}
+
 	/* get the firmware version and log it */
 	result = usb_control_msg (udev,
 				  usb_rcvctrlpipe(udev, 0),
@@ -893,18 +908,19 @@ static int tower_probe (struct usb_inter
 				  USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
 				  0,
 				  0,
-				  &get_version_reply,
-				  sizeof(get_version_reply),
+				  get_version_reply,
+				  sizeof(*get_version_reply),
 				  1000);
 	if (result < 0) {
 		dev_err(idev, "LEGO USB Tower get version control request failed\n");
 		retval = result;
 		goto error;
 	}
-	dev_info(&interface->dev, "LEGO USB Tower firmware version is %d.%d "
-		 "build %d\n", get_version_reply.major,
-		 get_version_reply.minor,
-		 le16_to_cpu(get_version_reply.build_no));
+	dev_info(&interface->dev,
+		 "LEGO USB Tower firmware version is %d.%d build %d\n",
+		 get_version_reply->major,
+		 get_version_reply->minor,
+		 le16_to_cpu(get_version_reply->build_no));
 
 	/* we can register the device now, as it is ready */
 	usb_set_intfdata (interface, dev);
@@ -925,9 +941,11 @@ static int tower_probe (struct usb_inter
 		 USB_MAJOR, dev->minor);
 
 exit:
+	kfree(get_version_reply);
 	return retval;
 
 error:
+	kfree(get_version_reply);
 	tower_delete(dev);
 	return retval;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/misc/lvstest.c linux-libre-4.9.52-gnu/drivers/usb/misc/lvstest.c
--- linux-libre-4.9-gnu/drivers/usb/misc/lvstest.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/misc/lvstest.c	2017-09-27 08:40:05.000000000 -0400
@@ -366,6 +366,10 @@ static int lvs_rh_probe(struct usb_inter
 
 	hdev = interface_to_usbdev(intf);
 	desc = intf->cur_altsetting;
+
+	if (desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &desc->endpoint[0].desc;
 
 	/* valid only for SS root hub */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/misc/usbtest.c linux-libre-4.9.52-gnu/drivers/usb/misc/usbtest.c
--- linux-libre-4.9-gnu/drivers/usb/misc/usbtest.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/misc/usbtest.c	2017-09-27 08:40:05.000000000 -0400
@@ -159,6 +159,7 @@ get_endpoints(struct usbtest_dev *dev, s
 			case USB_ENDPOINT_XFER_INT:
 				if (dev->info->intr)
 					goto try_intr;
+				continue;
 			case USB_ENDPOINT_XFER_ISOC:
 				if (dev->info->iso)
 					goto try_iso;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/misc/uss720.c linux-libre-4.9.52-gnu/drivers/usb/misc/uss720.c
--- linux-libre-4.9-gnu/drivers/usb/misc/uss720.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/misc/uss720.c	2017-09-27 08:40:05.000000000 -0400
@@ -708,6 +708,11 @@ static int uss720_probe(struct usb_inter
 
 	interface = intf->cur_altsetting;
 
+	if (interface->desc.bNumEndpoints < 3) {
+		usb_put_dev(usbdev);
+		return -ENODEV;
+	}
+
 	/*
 	 * Allocate parport interface 
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/blackfin.c linux-libre-4.9.52-gnu/drivers/usb/musb/blackfin.c
--- linux-libre-4.9-gnu/drivers/usb/musb/blackfin.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/blackfin.c	2017-09-27 08:40:05.000000000 -0400
@@ -469,6 +469,7 @@ static const struct musb_platform_ops bf
 	.init		= bfin_musb_init,
 	.exit		= bfin_musb_exit,
 
+	.fifo_offset	= bfin_fifo_offset,
 	.readb		= bfin_readb,
 	.writeb		= bfin_writeb,
 	.readw		= bfin_readw,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/da8xx.c linux-libre-4.9.52-gnu/drivers/usb/musb/da8xx.c
--- linux-libre-4.9-gnu/drivers/usb/musb/da8xx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/da8xx.c	2017-09-27 08:40:05.000000000 -0400
@@ -434,15 +434,11 @@ static int da8xx_musb_exit(struct musb *
 }
 
 static const struct musb_platform_ops da8xx_ops = {
-	.quirks		= MUSB_DMA_CPPI | MUSB_INDEXED_EP,
+	.quirks		= MUSB_INDEXED_EP,
 	.init		= da8xx_musb_init,
 	.exit		= da8xx_musb_exit,
 
 	.fifo_mode	= 2,
-#ifdef CONFIG_USB_TI_CPPI_DMA
-	.dma_init	= cppi_dma_controller_create,
-	.dma_exit	= cppi_dma_controller_destroy,
-#endif
 	.enable		= da8xx_musb_enable,
 	.disable	= da8xx_musb_disable,
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/musb_core.c linux-libre-4.9.52-gnu/drivers/usb/musb/musb_core.c
--- linux-libre-4.9-gnu/drivers/usb/musb/musb_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/musb_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -578,11 +578,11 @@ static irqreturn_t musb_stage0_irq(struc
 						| MUSB_PORT_STAT_RESUME;
 				musb->rh_timer = jiffies
 					+ msecs_to_jiffies(USB_RESUME_TIMEOUT);
-				musb->need_finish_resume = 1;
-
 				musb->xceiv->otg->state = OTG_STATE_A_HOST;
 				musb->is_active = 1;
 				musb_host_resume_root_hub(musb);
+				schedule_delayed_work(&musb->finish_resume_work,
+					msecs_to_jiffies(USB_RESUME_TIMEOUT));
 				break;
 			case OTG_STATE_B_WAIT_ACON:
 				musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
@@ -1909,6 +1909,14 @@ static void musb_pm_runtime_check_sessio
 static void musb_irq_work(struct work_struct *data)
 {
 	struct musb *musb = container_of(data, struct musb, irq_work.work);
+	int error;
+
+	error = pm_runtime_get_sync(musb->controller);
+	if (error < 0) {
+		dev_err(musb->controller, "Could not enable: %i\n", error);
+
+		return;
+	}
 
 	musb_pm_runtime_check_session(musb);
 
@@ -1916,6 +1924,9 @@ static void musb_irq_work(struct work_st
 		musb->xceiv_old_state = musb->xceiv->otg->state;
 		sysfs_notify(&musb->controller->kobj, NULL, "mode");
 	}
+
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
 }
 
 static void musb_recover_from_babble(struct musb *musb)
@@ -2467,8 +2478,8 @@ static int musb_remove(struct platform_d
 	pm_runtime_get_sync(musb->controller);
 	musb_host_cleanup(musb);
 	musb_gadget_cleanup(musb);
-	spin_lock_irqsave(&musb->lock, flags);
 	musb_platform_disable(musb);
+	spin_lock_irqsave(&musb->lock, flags);
 	musb_generic_disable(musb);
 	spin_unlock_irqrestore(&musb->lock, flags);
 	musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
@@ -2644,6 +2655,13 @@ static int musb_suspend(struct device *d
 {
 	struct musb	*musb = dev_to_musb(dev);
 	unsigned long	flags;
+	int ret;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret < 0) {
+		pm_runtime_put_noidle(dev);
+		return ret;
+	}
 
 	musb_platform_disable(musb);
 	musb_generic_disable(musb);
@@ -2691,19 +2709,6 @@ static int musb_resume(struct device *de
 	mask = MUSB_DEVCTL_BDEVICE | MUSB_DEVCTL_FSDEV | MUSB_DEVCTL_LSDEV;
 	if ((devctl & mask) != (musb->context.devctl & mask))
 		musb->port1_status = 0;
-	if (musb->need_finish_resume) {
-		musb->need_finish_resume = 0;
-		schedule_delayed_work(&musb->finish_resume_work,
-				      msecs_to_jiffies(USB_RESUME_TIMEOUT));
-	}
-
-	/*
-	 * The USB HUB code expects the device to be in RPM_ACTIVE once it came
-	 * out of suspend
-	 */
-	pm_runtime_disable(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
 
 	musb_start(musb);
 
@@ -2714,6 +2719,9 @@ static int musb_resume(struct device *de
 			error);
 	spin_unlock_irqrestore(&musb->lock, flags);
 
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+
 	return 0;
 }
 
@@ -2747,12 +2755,6 @@ static int musb_runtime_resume(struct de
 
 	musb_restore_context(musb);
 
-	if (musb->need_finish_resume) {
-		musb->need_finish_resume = 0;
-		schedule_delayed_work(&musb->finish_resume_work,
-				msecs_to_jiffies(USB_RESUME_TIMEOUT));
-	}
-
 	spin_lock_irqsave(&musb->lock, flags);
 	error = musb_run_resume_work(musb);
 	if (error)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/musb_core.h linux-libre-4.9.52-gnu/drivers/usb/musb/musb_core.h
--- linux-libre-4.9-gnu/drivers/usb/musb/musb_core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/musb_core.h	2017-09-27 08:40:05.000000000 -0400
@@ -216,6 +216,7 @@ struct musb_platform_ops {
 	void	(*pre_root_reset_end)(struct musb *musb);
 	void	(*post_root_reset_end)(struct musb *musb);
 	int	(*phy_callback)(enum musb_vbus_id_status status);
+	void	(*clear_ep_rxintr)(struct musb *musb, int epnum);
 };
 
 /*
@@ -409,7 +410,6 @@ struct musb {
 
 	/* is_suspended means USB B_PERIPHERAL suspend */
 	unsigned		is_suspended:1;
-	unsigned		need_finish_resume :1;
 
 	/* may_wakeup means remote wakeup is enabled */
 	unsigned		may_wakeup:1;
@@ -626,4 +626,10 @@ static inline void musb_platform_post_ro
 		musb->ops->post_root_reset_end(musb);
 }
 
+static inline void musb_platform_clear_ep_rxintr(struct musb *musb, int epnum)
+{
+	if (musb->ops->clear_ep_rxintr)
+		musb->ops->clear_ep_rxintr(musb, epnum);
+}
+
 #endif	/* __MUSB_CORE_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/musb_cppi41.c linux-libre-4.9.52-gnu/drivers/usb/musb/musb_cppi41.c
--- linux-libre-4.9-gnu/drivers/usb/musb/musb_cppi41.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/musb_cppi41.c	2017-09-27 08:40:05.000000000 -0400
@@ -232,8 +232,27 @@ static void cppi41_dma_callback(void *pr
 			transferred < cppi41_channel->packet_sz)
 		cppi41_channel->prog_len = 0;
 
-	if (cppi41_channel->is_tx)
-		empty = musb_is_tx_fifo_empty(hw_ep);
+	if (cppi41_channel->is_tx) {
+		u8 type;
+
+		if (is_host_active(musb))
+			type = hw_ep->out_qh->type;
+		else
+			type = hw_ep->ep_in.type;
+
+		if (type == USB_ENDPOINT_XFER_ISOC)
+			/*
+			 * Don't use the early-TX-interrupt workaround below
+			 * for Isoch transfter. Since Isoch are periodic
+			 * transfer, by the time the next transfer is
+			 * scheduled, the current one should be done already.
+			 *
+			 * This avoids audio playback underrun issue.
+			 */
+			empty = true;
+		else
+			empty = musb_is_tx_fifo_empty(hw_ep);
+	}
 
 	if (!cppi41_channel->is_tx || empty) {
 		cppi41_trans_done(cppi41_channel);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/musb_debugfs.c linux-libre-4.9.52-gnu/drivers/usb/musb/musb_debugfs.c
--- linux-libre-4.9-gnu/drivers/usb/musb/musb_debugfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/musb_debugfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -114,6 +114,7 @@ static int musb_regdump_show(struct seq_
 	unsigned		i;
 
 	seq_printf(s, "MUSB (M)HDRC Register Dump\n");
+	pm_runtime_get_sync(musb->controller);
 
 	for (i = 0; i < ARRAY_SIZE(musb_regmap); i++) {
 		switch (musb_regmap[i].size) {
@@ -132,6 +133,8 @@ static int musb_regdump_show(struct seq_
 		}
 	}
 
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
 	return 0;
 }
 
@@ -145,7 +148,10 @@ static int musb_test_mode_show(struct se
 	struct musb		*musb = s->private;
 	unsigned		test;
 
+	pm_runtime_get_sync(musb->controller);
 	test = musb_readb(musb->mregs, MUSB_TESTMODE);
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
 
 	if (test & MUSB_TEST_FORCE_HOST)
 		seq_printf(s, "force host\n");
@@ -194,11 +200,12 @@ static ssize_t musb_test_mode_write(stru
 	u8			test;
 	char			buf[18];
 
+	pm_runtime_get_sync(musb->controller);
 	test = musb_readb(musb->mregs, MUSB_TESTMODE);
 	if (test) {
 		dev_err(musb->controller, "Error: test mode is already set. "
 			"Please do USB Bus Reset to start a new test.\n");
-		return count;
+		goto ret;
 	}
 
 	memset(buf, 0x00, sizeof(buf));
@@ -234,6 +241,9 @@ static ssize_t musb_test_mode_write(stru
 
 	musb_writeb(musb->mregs, MUSB_TESTMODE, test);
 
+ret:
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
 	return count;
 }
 
@@ -254,8 +264,13 @@ static int musb_softconnect_show(struct
 	switch (musb->xceiv->otg->state) {
 	case OTG_STATE_A_HOST:
 	case OTG_STATE_A_WAIT_BCON:
+		pm_runtime_get_sync(musb->controller);
+
 		reg = musb_readb(musb->mregs, MUSB_DEVCTL);
 		connect = reg & MUSB_DEVCTL_SESSION ? 1 : 0;
+
+		pm_runtime_mark_last_busy(musb->controller);
+		pm_runtime_put_autosuspend(musb->controller);
 		break;
 	default:
 		connect = -1;
@@ -284,6 +299,7 @@ static ssize_t musb_softconnect_write(st
 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
 		return -EFAULT;
 
+	pm_runtime_get_sync(musb->controller);
 	if (!strncmp(buf, "0", 1)) {
 		switch (musb->xceiv->otg->state) {
 		case OTG_STATE_A_HOST:
@@ -314,6 +330,8 @@ static ssize_t musb_softconnect_write(st
 		}
 	}
 
+	pm_runtime_mark_last_busy(musb->controller);
+	pm_runtime_put_autosuspend(musb->controller);
 	return count;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/musb_dsps.c linux-libre-4.9.52-gnu/drivers/usb/musb/musb_dsps.c
--- linux-libre-4.9-gnu/drivers/usb/musb/musb_dsps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/musb_dsps.c	2017-09-27 08:40:05.000000000 -0400
@@ -213,6 +213,12 @@ static int dsps_check_status(struct musb
 				msecs_to_jiffies(wrp->poll_timeout));
 		break;
 	case OTG_STATE_A_WAIT_BCON:
+		/* keep VBUS on for host-only mode */
+		if (musb->port_mode == MUSB_PORT_MODE_HOST) {
+			mod_timer(&glue->timer, jiffies +
+					msecs_to_jiffies(wrp->poll_timeout));
+			break;
+		}
 		musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
 		skip_session = 1;
 		/* fall */
@@ -267,6 +273,17 @@ static void otg_timer(unsigned long _mus
 	pm_runtime_put_autosuspend(dev);
 }
 
+void dsps_musb_clear_ep_rxintr(struct musb *musb, int epnum)
+{
+	u32 epintr;
+	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);
+	const struct dsps_musb_wrapper *wrp = glue->wrp;
+
+	/* musb->lock might already been held */
+	epintr = (1 << epnum) << wrp->rxep_shift;
+	musb_writel(musb->ctrl_base, wrp->epintr_status, epintr);
+}
+
 static irqreturn_t dsps_interrupt(int irq, void *hci)
 {
 	struct musb  *musb = hci;
@@ -622,6 +639,7 @@ static struct musb_platform_ops dsps_ops
 
 	.set_mode	= dsps_musb_set_mode,
 	.recover	= dsps_musb_recover,
+	.clear_ep_rxintr = dsps_musb_clear_ep_rxintr,
 };
 
 static u64 musb_dmamask = DMA_BIT_MASK(32);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/musb_host.c linux-libre-4.9.52-gnu/drivers/usb/musb/musb_host.c
--- linux-libre-4.9-gnu/drivers/usb/musb/musb_host.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/musb_host.c	2017-09-27 08:40:05.000000000 -0400
@@ -139,6 +139,7 @@ static void musb_h_tx_flush_fifo(struct
 				"Could not flush host TX%d fifo: csr: %04x\n",
 				ep->epnum, csr))
 			return;
+		mdelay(1);
 	}
 }
 
@@ -2374,12 +2375,11 @@ static int musb_cleanup_urb(struct urb *
 	int			is_in = usb_pipein(urb->pipe);
 	int			status = 0;
 	u16			csr;
+	struct dma_channel	*dma = NULL;
 
 	musb_ep_select(regs, hw_end);
 
 	if (is_dma_capable()) {
-		struct dma_channel	*dma;
-
 		dma = is_in ? ep->rx_channel : ep->tx_channel;
 		if (dma) {
 			status = ep->musb->dma_controller->channel_abort(dma);
@@ -2395,10 +2395,9 @@ static int musb_cleanup_urb(struct urb *
 		/* giveback saves bulk toggle */
 		csr = musb_h_flush_rxfifo(ep, 0);
 
-		/* REVISIT we still get an irq; should likely clear the
-		 * endpoint's irq status here to avoid bogus irqs.
-		 * clearing that status is platform-specific...
-		 */
+		/* clear the endpoint's irq status here to avoid bogus irqs */
+		if (is_dma_capable() && dma)
+			musb_platform_clear_ep_rxintr(musb, ep->epnum);
 	} else if (ep->epnum) {
 		musb_h_tx_flush_fifo(ep);
 		csr = musb_readw(epio, MUSB_TXCSR);
@@ -2782,10 +2781,11 @@ int musb_host_setup(struct musb *musb, i
 	int ret;
 	struct usb_hcd *hcd = musb->hcd;
 
-	MUSB_HST_MODE(musb);
-	musb->xceiv->otg->default_a = 1;
-	musb->xceiv->otg->state = OTG_STATE_A_IDLE;
-
+	if (musb->port_mode == MUSB_PORT_MODE_HOST) {
+		MUSB_HST_MODE(musb);
+		musb->xceiv->otg->default_a = 1;
+		musb->xceiv->otg->state = OTG_STATE_A_IDLE;
+	}
 	otg_set_host(musb->xceiv->otg, &hcd->self);
 	hcd->self.otg_port = 1;
 	musb->xceiv->otg->host = &hcd->self;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/musbhsdma.h linux-libre-4.9.52-gnu/drivers/usb/musb/musbhsdma.h
--- linux-libre-4.9-gnu/drivers/usb/musb/musbhsdma.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/musbhsdma.h	2017-09-27 08:40:05.000000000 -0400
@@ -157,5 +157,5 @@ struct musb_dma_controller {
 	void __iomem			*base;
 	u8				channel_count;
 	u8				used_channels;
-	u8				irq;
+	int				irq;
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/musb/tusb6010_omap.c linux-libre-4.9.52-gnu/drivers/usb/musb/tusb6010_omap.c
--- linux-libre-4.9-gnu/drivers/usb/musb/tusb6010_omap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/musb/tusb6010_omap.c	2017-09-27 08:40:05.000000000 -0400
@@ -220,6 +220,7 @@ static int tusb_omap_dma_program(struct
 	u32				dma_remaining;
 	int				src_burst, dst_burst;
 	u16				csr;
+	u32				psize;
 	int				ch;
 	s8				dmareq;
 	s8				sync_dev;
@@ -391,15 +392,19 @@ static int tusb_omap_dma_program(struct
 
 	if (chdat->tx) {
 		/* Send transfer_packet_sz packets at a time */
-		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET,
-			chdat->transfer_packet_sz);
+		psize = musb_readl(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET);
+		psize &= ~0x7ff;
+		psize |= chdat->transfer_packet_sz;
+		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET, psize);
 
 		musb_writel(ep_conf, TUSB_EP_TX_OFFSET,
 			TUSB_EP_CONFIG_XFR_SIZE(chdat->transfer_len));
 	} else {
 		/* Receive transfer_packet_sz packets at a time */
-		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET,
-			chdat->transfer_packet_sz << 16);
+		psize = musb_readl(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET);
+		psize &= ~(0x7ff << 16);
+		psize |= (chdat->transfer_packet_sz << 16);
+		musb_writel(ep_conf, TUSB_EP_MAX_PACKET_SIZE_OFFSET, psize);
 
 		musb_writel(ep_conf, TUSB_EP_RX_OFFSET,
 			TUSB_EP_CONFIG_XFR_SIZE(chdat->transfer_len));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/phy/phy-am335x-control.c linux-libre-4.9.52-gnu/drivers/usb/phy/phy-am335x-control.c
--- linux-libre-4.9-gnu/drivers/usb/phy/phy-am335x-control.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/phy/phy-am335x-control.c	2017-09-27 08:40:05.000000000 -0400
@@ -134,10 +134,12 @@ struct phy_control *am335x_get_phy_contr
 		return NULL;
 
 	dev = bus_find_device(&platform_bus_type, NULL, node, match);
+	of_node_put(node);
 	if (!dev)
 		return NULL;
 
 	ctrl_usb = dev_get_drvdata(dev);
+	put_device(dev);
 	if (!ctrl_usb)
 		return NULL;
 	return &ctrl_usb->phy_ctrl;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/renesas_usbhs/common.c linux-libre-4.9.52-gnu/drivers/usb/renesas_usbhs/common.c
--- linux-libre-4.9-gnu/drivers/usb/renesas_usbhs/common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/renesas_usbhs/common.c	2017-09-27 08:40:05.000000000 -0400
@@ -752,8 +752,10 @@ static int usbhsc_resume(struct device *
 	struct usbhs_priv *priv = dev_get_drvdata(dev);
 	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
 
-	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL))
+	if (!usbhsc_flags_has(priv, USBHSF_RUNTIME_PWCTRL)) {
 		usbhsc_power_ctrl(priv, 1);
+		usbhs_mod_autonomy_mode(priv);
+	}
 
 	usbhs_platform_call(priv, phy_reset, pdev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/renesas_usbhs/mod_gadget.c linux-libre-4.9.52-gnu/drivers/usb/renesas_usbhs/mod_gadget.c
--- linux-libre-4.9-gnu/drivers/usb/renesas_usbhs/mod_gadget.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/renesas_usbhs/mod_gadget.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,6 +37,7 @@ struct usbhsg_gpriv;
 struct usbhsg_uep {
 	struct usb_ep		 ep;
 	struct usbhs_pipe	*pipe;
+	spinlock_t		lock;	/* protect the pipe */
 
 	char ep_name[EP_NAME_SIZE];
 
@@ -636,10 +637,16 @@ usbhsg_ep_enable_end:
 static int usbhsg_ep_disable(struct usb_ep *ep)
 {
 	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
-	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
+	int ret = 0;
 
-	if (!pipe)
-		return -EINVAL;
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
+	if (!pipe) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	usbhsg_pipe_disable(uep);
 	usbhs_pipe_free(pipe);
@@ -647,6 +654,9 @@ static int usbhsg_ep_disable(struct usb_
 	uep->pipe->mod_private	= NULL;
 	uep->pipe		= NULL;
 
+out:
+	spin_unlock_irqrestore(&uep->lock, flags);
+
 	return 0;
 }
 
@@ -696,8 +706,11 @@ static int usbhsg_ep_dequeue(struct usb_
 {
 	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
 	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
-	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
 
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
 	if (pipe)
 		usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
 
@@ -706,6 +719,7 @@ static int usbhsg_ep_dequeue(struct usb_
 	 * even if the pipe is NULL.
 	 */
 	usbhsg_queue_pop(uep, ureq, -ECONNRESET);
+	spin_unlock_irqrestore(&uep->lock, flags);
 
 	return 0;
 }
@@ -852,10 +866,10 @@ static int usbhsg_try_stop(struct usbhs_
 {
 	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
 	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
-	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhsg_uep *uep;
 	struct device *dev = usbhs_priv_to_dev(priv);
 	unsigned long flags;
-	int ret = 0;
+	int ret = 0, i;
 
 	/********************  spin lock ********************/
 	usbhs_lock(priv, flags);
@@ -887,7 +901,9 @@ static int usbhsg_try_stop(struct usbhs_
 	usbhs_sys_set_test_mode(priv, 0);
 	usbhs_sys_function_ctrl(priv, 0);
 
-	usbhsg_ep_disable(&dcp->ep);
+	/* disable all eps */
+	usbhsg_for_each_uep_with_dcp(uep, gpriv, i)
+		usbhsg_ep_disable(&uep->ep);
 
 	dev_dbg(dev, "stop gadget\n");
 
@@ -1069,6 +1085,7 @@ int usbhs_mod_gadget_probe(struct usbhs_
 		ret = -ENOMEM;
 		goto usbhs_mod_gadget_probe_err_gpriv;
 	}
+	spin_lock_init(&uep->lock);
 
 	gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
 	dev_info(dev, "%stransceiver found\n",
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/renesas_usbhs/rcar3.c linux-libre-4.9.52-gnu/drivers/usb/renesas_usbhs/rcar3.c
--- linux-libre-4.9-gnu/drivers/usb/renesas_usbhs/rcar3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/renesas_usbhs/rcar3.c	2017-09-27 08:40:05.000000000 -0400
@@ -20,9 +20,13 @@
 /* Low Power Status register (LPSTS) */
 #define LPSTS_SUSPM	0x4000
 
-/* USB General control register 2 (UGCTRL2), bit[31:6] should be 0 */
+/*
+ * USB General control register 2 (UGCTRL2)
+ * Remarks: bit[31:11] and bit[9:6] should be 0
+ */
 #define UGCTRL2_RESERVED_3	0x00000001	/* bit[3:0] should be B'0001 */
 #define UGCTRL2_USB0SEL_OTG	0x00000030
+#define UGCTRL2_VBUSSEL		0x00000400
 
 static void usbhs_write32(struct usbhs_priv *priv, u32 reg, u32 data)
 {
@@ -34,7 +38,8 @@ static int usbhs_rcar3_power_ctrl(struct
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
 
-	usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | UGCTRL2_USB0SEL_OTG);
+	usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | UGCTRL2_USB0SEL_OTG |
+		      UGCTRL2_VBUSSEL);
 
 	if (enable) {
 		usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/ark3116.c linux-libre-4.9.52-gnu/drivers/usb/serial/ark3116.c
--- linux-libre-4.9-gnu/drivers/usb/serial/ark3116.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/ark3116.c	2017-09-27 08:40:05.000000000 -0400
@@ -99,10 +99,17 @@ static int ark3116_read_reg(struct usb_s
 				 usb_rcvctrlpipe(serial->dev, 0),
 				 0xfe, 0xc0, 0, reg,
 				 buf, 1, ARK_TIMEOUT);
-	if (result < 0)
+	if (result < 1) {
+		dev_err(&serial->interface->dev,
+				"failed to read register %u: %d\n",
+				reg, result);
+		if (result >= 0)
+			result = -EIO;
+
 		return result;
-	else
-		return buf[0];
+	}
+
+	return buf[0];
 }
 
 static inline int calc_divisor(int bps)
@@ -366,23 +373,29 @@ static int ark3116_open(struct tty_struc
 		dev_dbg(&port->dev,
 			"%s - usb_serial_generic_open failed: %d\n",
 			__func__, result);
-		goto err_out;
+		goto err_free;
 	}
 
 	/* remove any data still left: also clears error state */
 	ark3116_read_reg(serial, UART_RX, buf);
 
 	/* read modem status */
-	priv->msr = ark3116_read_reg(serial, UART_MSR, buf);
+	result = ark3116_read_reg(serial, UART_MSR, buf);
+	if (result < 0)
+		goto err_close;
+	priv->msr = *buf;
+
 	/* read line status */
-	priv->lsr = ark3116_read_reg(serial, UART_LSR, buf);
+	result = ark3116_read_reg(serial, UART_LSR, buf);
+	if (result < 0)
+		goto err_close;
+	priv->lsr = *buf;
 
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result) {
 		dev_err(&port->dev, "submit irq_in urb failed %d\n",
 			result);
-		ark3116_close(port);
-		goto err_out;
+		goto err_close;
 	}
 
 	/* activate interrupts */
@@ -395,8 +408,15 @@ static int ark3116_open(struct tty_struc
 	if (tty)
 		ark3116_set_termios(tty, port, NULL);
 
-err_out:
 	kfree(buf);
+
+	return 0;
+
+err_close:
+	usb_serial_generic_close(port);
+err_free:
+	kfree(buf);
+
 	return result;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/ch341.c linux-libre-4.9.52-gnu/drivers/usb/serial/ch341.c
--- linux-libre-4.9-gnu/drivers/usb/serial/ch341.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/ch341.c	2017-09-27 08:40:05.000000000 -0400
@@ -99,6 +99,8 @@ static int ch341_control_out(struct usb_
 	r = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 			    value, index, NULL, 0, DEFAULT_TIMEOUT);
+	if (r < 0)
+		dev_err(&dev->dev, "failed to send control message: %d\n", r);
 
 	return r;
 }
@@ -116,7 +118,20 @@ static int ch341_control_in(struct usb_d
 	r = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
 			    USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 			    value, index, buf, bufsize, DEFAULT_TIMEOUT);
-	return r;
+	if (r < bufsize) {
+		if (r >= 0) {
+			dev_err(&dev->dev,
+				"short control message received (%d < %u)\n",
+				r, bufsize);
+			r = -EIO;
+		}
+
+		dev_err(&dev->dev, "failed to receive control message: %d\n",
+			r);
+		return r;
+	}
+
+	return 0;
 }
 
 static int ch341_set_baudrate(struct usb_device *dev,
@@ -158,9 +173,9 @@ static int ch341_set_handshake(struct us
 
 static int ch341_get_status(struct usb_device *dev, struct ch341_private *priv)
 {
+	const unsigned int size = 2;
 	char *buffer;
 	int r;
-	const unsigned size = 8;
 	unsigned long flags;
 
 	buffer = kmalloc(size, GFP_KERNEL);
@@ -171,14 +186,9 @@ static int ch341_get_status(struct usb_d
 	if (r < 0)
 		goto out;
 
-	/* setup the private status if available */
-	if (r == 2) {
-		r = 0;
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_status = (~(*buffer)) & CH341_BITS_MODEM_STAT;
-		spin_unlock_irqrestore(&priv->lock, flags);
-	} else
-		r = -EPROTO;
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->line_status = (~(*buffer)) & CH341_BITS_MODEM_STAT;
+	spin_unlock_irqrestore(&priv->lock, flags);
 
 out:	kfree(buffer);
 	return r;
@@ -188,9 +198,9 @@ out:	kfree(buffer);
 
 static int ch341_configure(struct usb_device *dev, struct ch341_private *priv)
 {
+	const unsigned int size = 2;
 	char *buffer;
 	int r;
-	const unsigned size = 8;
 
 	buffer = kmalloc(size, GFP_KERNEL);
 	if (!buffer)
@@ -253,7 +263,6 @@ static int ch341_port_probe(struct usb_s
 
 	spin_lock_init(&priv->lock);
 	priv->baud_rate = DEFAULT_BAUD_RATE;
-	priv->line_control = CH341_BIT_RTS | CH341_BIT_DTR;
 
 	r = ch341_configure(port->serial->dev, priv);
 	if (r < 0)
@@ -315,7 +324,7 @@ static int ch341_open(struct tty_struct
 
 	r = ch341_configure(serial->dev, priv);
 	if (r)
-		goto out;
+		return r;
 
 	if (tty)
 		ch341_set_termios(tty, port, NULL);
@@ -325,12 +334,19 @@ static int ch341_open(struct tty_struct
 	if (r) {
 		dev_err(&port->dev, "%s - failed to submit interrupt urb: %d\n",
 			__func__, r);
-		goto out;
+		return r;
 	}
 
 	r = usb_serial_generic_open(tty, port);
+	if (r)
+		goto err_kill_interrupt_urb;
 
-out:	return r;
+	return 0;
+
+err_kill_interrupt_urb:
+	usb_kill_urb(port->interrupt_in_urb);
+
+	return r;
 }
 
 /* Old_termios contains the original termios settings and
@@ -345,26 +361,25 @@ static void ch341_set_termios(struct tty
 
 	baud_rate = tty_get_baud_rate(tty);
 
-	priv->baud_rate = baud_rate;
-
 	if (baud_rate) {
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_control |= (CH341_BIT_DTR | CH341_BIT_RTS);
-		spin_unlock_irqrestore(&priv->lock, flags);
+		priv->baud_rate = baud_rate;
 		ch341_set_baudrate(port->serial->dev, priv);
-	} else {
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_control &= ~(CH341_BIT_DTR | CH341_BIT_RTS);
-		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 
-	ch341_set_handshake(port->serial->dev, priv->line_control);
-
 	/* Unimplemented:
 	 * (cflag & CSIZE) : data bits [5, 8]
 	 * (cflag & PARENB) : parity {NONE, EVEN, ODD}
 	 * (cflag & CSTOPB) : stop bits [1, 2]
 	 */
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (C_BAUD(tty) == B0)
+		priv->line_control &= ~(CH341_BIT_DTR | CH341_BIT_RTS);
+	else if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
+		priv->line_control |= (CH341_BIT_DTR | CH341_BIT_RTS);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	ch341_set_handshake(port->serial->dev, priv->line_control);
 }
 
 static void ch341_break_ctl(struct tty_struct *tty, int break_state)
@@ -539,14 +554,23 @@ static int ch341_tiocmget(struct tty_str
 
 static int ch341_reset_resume(struct usb_serial *serial)
 {
-	struct ch341_private *priv;
-
-	priv = usb_get_serial_port_data(serial->port[0]);
+	struct usb_serial_port *port = serial->port[0];
+	struct ch341_private *priv = usb_get_serial_port_data(port);
+	int ret;
 
 	/* reconfigure ch341 serial port after bus-reset */
 	ch341_configure(serial->dev, priv);
 
-	return 0;
+	if (tty_port_initialized(&port->port)) {
+		ret = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
+		if (ret) {
+			dev_err(&port->dev, "failed to submit interrupt urb: %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	return usb_serial_generic_resume(serial);
 }
 
 static struct usb_serial_driver ch341_device = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/console.c linux-libre-4.9.52-gnu/drivers/usb/serial/console.c
--- linux-libre-4.9-gnu/drivers/usb/serial/console.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/console.c	2017-09-27 08:40:05.000000000 -0400
@@ -143,6 +143,7 @@ static int usb_console_setup(struct cons
 			tty->driver = usb_serial_tty_driver;
 			tty->index = co->index;
 			init_ldsem(&tty->ldisc_sem);
+			spin_lock_init(&tty->files_lock);
 			INIT_LIST_HEAD(&tty->tty_files);
 			kref_get(&tty->driver->kref);
 			__module_get(tty->driver->owner);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/cp210x.c linux-libre-4.9.52-gnu/drivers/usb/serial/cp210x.c
--- linux-libre-4.9-gnu/drivers/usb/serial/cp210x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/cp210x.c	2017-09-27 08:40:05.000000000 -0400
@@ -135,6 +135,8 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x10C4, 0x8977) },	/* CEL MeshWorks DevKit Device */
 	{ USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */
 	{ USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */
+	{ USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */
+	{ USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */
 	{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
@@ -172,6 +174,8 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
 	{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
 	{ USB_DEVICE(0x1901, 0x0194) },	/* GE Healthcare Remote Alarm Box */
+	{ USB_DEVICE(0x1901, 0x0195) },	/* GE B850/B650/B450 CP2104 DP UART interface */
+	{ USB_DEVICE(0x1901, 0x0196) },	/* GE B850 CP2105 DP UART interface */
 	{ USB_DEVICE(0x19CF, 0x3000) }, /* Parrot NMEA GPS Flight Recorder */
 	{ USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
 	{ USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/cyberjack.c linux-libre-4.9.52-gnu/drivers/usb/serial/cyberjack.c
--- linux-libre-4.9-gnu/drivers/usb/serial/cyberjack.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/cyberjack.c	2017-09-27 08:40:05.000000000 -0400
@@ -50,6 +50,7 @@
 #define CYBERJACK_PRODUCT_ID	0x0100
 
 /* Function prototypes */
+static int cyberjack_attach(struct usb_serial *serial);
 static int cyberjack_port_probe(struct usb_serial_port *port);
 static int cyberjack_port_remove(struct usb_serial_port *port);
 static int  cyberjack_open(struct tty_struct *tty,
@@ -77,6 +78,7 @@ static struct usb_serial_driver cyberjac
 	.description =		"Reiner SCT Cyberjack USB card reader",
 	.id_table =		id_table,
 	.num_ports =		1,
+	.attach =		cyberjack_attach,
 	.port_probe =		cyberjack_port_probe,
 	.port_remove =		cyberjack_port_remove,
 	.open =			cyberjack_open,
@@ -100,6 +102,14 @@ struct cyberjack_private {
 	short		wrsent;		/* Data already sent */
 };
 
+static int cyberjack_attach(struct usb_serial *serial)
+{
+	if (serial->num_bulk_out < serial->num_ports)
+		return -ENODEV;
+
+	return 0;
+}
+
 static int cyberjack_port_probe(struct usb_serial_port *port)
 {
 	struct cyberjack_private *priv;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/digi_acceleport.c linux-libre-4.9.52-gnu/drivers/usb/serial/digi_acceleport.c
--- linux-libre-4.9-gnu/drivers/usb/serial/digi_acceleport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/digi_acceleport.c	2017-09-27 08:40:05.000000000 -0400
@@ -1398,25 +1398,30 @@ static int digi_read_inb_callback(struct
 {
 	struct usb_serial_port *port = urb->context;
 	struct digi_port *priv = usb_get_serial_port_data(port);
-	int opcode = ((unsigned char *)urb->transfer_buffer)[0];
-	int len = ((unsigned char *)urb->transfer_buffer)[1];
-	int port_status = ((unsigned char *)urb->transfer_buffer)[2];
-	unsigned char *data = ((unsigned char *)urb->transfer_buffer) + 3;
+	unsigned char *buf = urb->transfer_buffer;
+	int opcode;
+	int len;
+	int port_status;
+	unsigned char *data;
 	int flag, throttled;
-	int status = urb->status;
-
-	/* do not process callbacks on closed ports */
-	/* but do continue the read chain */
-	if (urb->status == -ENOENT)
-		return 0;
 
 	/* short/multiple packet check */
+	if (urb->actual_length < 2) {
+		dev_warn(&port->dev, "short packet received\n");
+		return -1;
+	}
+
+	opcode = buf[0];
+	len = buf[1];
+
 	if (urb->actual_length != len + 2) {
-		dev_err(&port->dev, "%s: INCOMPLETE OR MULTIPLE PACKET, "
-			"status=%d, port=%d, opcode=%d, len=%d, "
-			"actual_length=%d, status=%d\n", __func__, status,
-			priv->dp_port_num, opcode, len, urb->actual_length,
-			port_status);
+		dev_err(&port->dev, "malformed packet received: port=%d, opcode=%d, len=%d, actual_length=%u\n",
+			priv->dp_port_num, opcode, len, urb->actual_length);
+		return -1;
+	}
+
+	if (opcode == DIGI_CMD_RECEIVE_DATA && len < 1) {
+		dev_err(&port->dev, "malformed data packet received\n");
 		return -1;
 	}
 
@@ -1430,6 +1435,9 @@ static int digi_read_inb_callback(struct
 
 	/* receive data */
 	if (opcode == DIGI_CMD_RECEIVE_DATA) {
+		port_status = buf[2];
+		data = &buf[3];
+
 		/* get flag from port_status */
 		flag = 0;
 
@@ -1482,16 +1490,20 @@ static int digi_read_oob_callback(struct
 	struct usb_serial *serial = port->serial;
 	struct tty_struct *tty;
 	struct digi_port *priv = usb_get_serial_port_data(port);
+	unsigned char *buf = urb->transfer_buffer;
 	int opcode, line, status, val;
 	int i;
 	unsigned int rts;
 
+	if (urb->actual_length < 4)
+		return -1;
+
 	/* handle each oob command */
-	for (i = 0; i < urb->actual_length - 3;) {
-		opcode = ((unsigned char *)urb->transfer_buffer)[i++];
-		line = ((unsigned char *)urb->transfer_buffer)[i++];
-		status = ((unsigned char *)urb->transfer_buffer)[i++];
-		val = ((unsigned char *)urb->transfer_buffer)[i++];
+	for (i = 0; i < urb->actual_length - 3; i += 4) {
+		opcode = buf[i];
+		line = buf[i + 1];
+		status = buf[i + 2];
+		val = buf[i + 3];
 
 		dev_dbg(&port->dev, "digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d\n",
 			opcode, line, status, val);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/ftdi_sio.c linux-libre-4.9.52-gnu/drivers/usb/serial/ftdi_sio.c
--- linux-libre-4.9-gnu/drivers/usb/serial/ftdi_sio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/ftdi_sio.c	2017-09-27 08:40:05.000000000 -0400
@@ -809,10 +809,10 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
 	{ USB_DEVICE(FTDI_VID, CYBER_CORTEX_AV_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
-	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
-		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
-	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
-		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_TINY_PID, 1) },
+	{ USB_DEVICE_INTERFACE_NUMBER(OLIMEX_VID, OLIMEX_ARM_USB_TINY_H_PID, 1) },
 	{ USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
@@ -873,6 +873,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
 					USB_CLASS_VENDOR_SPEC,
 					USB_SUBCLASS_VENDOR_SPEC, 0x00) },
+	{ USB_DEVICE_INTERFACE_NUMBER(ACTEL_VID, MICROSEMI_ARROW_SF2PLUS_BOARD_PID, 2) },
 	{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
 	{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
@@ -1439,10 +1440,13 @@ static int read_latency_timer(struct usb
 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
 			     0, priv->interface,
 			     buf, 1, WDR_TIMEOUT);
-	if (rv < 0)
+	if (rv < 1) {
 		dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
-	else
+		if (rv >= 0)
+			rv = -EIO;
+	} else {
 		priv->latency = buf[0];
+	}
 
 	kfree(buf);
 
@@ -1504,9 +1508,9 @@ static int set_serial_info(struct tty_st
 					(new_serial.flags & ASYNC_FLAGS));
 	priv->custom_divisor = new_serial.custom_divisor;
 
+check_and_exit:
 	write_latency_timer(port);
 
-check_and_exit:
 	if ((old_priv.flags & ASYNC_SPD_MASK) !=
 	     (priv->flags & ASYNC_SPD_MASK)) {
 		if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
@@ -1807,8 +1811,6 @@ static int ftdi_sio_port_probe(struct us
 
 	mutex_init(&priv->cfg_lock);
 
-	priv->flags = ASYNC_LOW_LATENCY;
-
 	if (quirk && quirk->port_probe)
 		quirk->port_probe(priv);
 
@@ -2072,6 +2074,20 @@ static int ftdi_process_packet(struct us
 		priv->prev_status = status;
 	}
 
+	/* save if the transmitter is empty or not */
+	if (packet[1] & FTDI_RS_TEMT)
+		priv->transmit_empty = 1;
+	else
+		priv->transmit_empty = 0;
+
+	len -= 2;
+	if (!len)
+		return 0;	/* status only */
+
+	/*
+	 * Break and error status must only be processed for packets with
+	 * data payload to avoid over-reporting.
+	 */
 	flag = TTY_NORMAL;
 	if (packet[1] & FTDI_RS_ERR_MASK) {
 		/* Break takes precedence over parity, which takes precedence
@@ -2094,15 +2110,6 @@ static int ftdi_process_packet(struct us
 		}
 	}
 
-	/* save if the transmitter is empty or not */
-	if (packet[1] & FTDI_RS_TEMT)
-		priv->transmit_empty = 1;
-	else
-		priv->transmit_empty = 0;
-
-	len -= 2;
-	if (!len)
-		return 0;	/* status only */
 	port->icount.rx += len;
 	ch = packet + 2;
 
@@ -2433,8 +2440,12 @@ static int ftdi_get_modem_status(struct
 			FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
 			0, priv->interface,
 			buf, len, WDR_TIMEOUT);
-	if (ret < 0) {
+
+	/* NOTE: We allow short responses and handle that below. */
+	if (ret < 1) {
 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
+		if (ret >= 0)
+			ret = -EIO;
 		ret = usb_translate_errors(ret);
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/ftdi_sio_ids.h linux-libre-4.9.52-gnu/drivers/usb/serial/ftdi_sio_ids.h
--- linux-libre-4.9-gnu/drivers/usb/serial/ftdi_sio_ids.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/ftdi_sio_ids.h	2017-09-27 08:40:05.000000000 -0400
@@ -873,9 +873,17 @@
 #define	FIC_VID			0x1457
 #define	FIC_NEO1973_DEBUG_PID	0x5118
 
+/*
+ * Actel / Microsemi
+ */
+#define ACTEL_VID				0x1514
+#define MICROSEMI_ARROW_SF2PLUS_BOARD_PID	0x2008
+
 /* Olimex */
 #define OLIMEX_VID			0x15BA
 #define OLIMEX_ARM_USB_OCD_PID		0x0003
+#define OLIMEX_ARM_USB_TINY_PID	0x0004
+#define OLIMEX_ARM_USB_TINY_H_PID	0x002a
 #define OLIMEX_ARM_USB_OCD_H_PID	0x002b
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/garmin_gps.c linux-libre-4.9.52-gnu/drivers/usb/serial/garmin_gps.c
--- linux-libre-4.9-gnu/drivers/usb/serial/garmin_gps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/garmin_gps.c	2017-09-27 08:40:05.000000000 -0400
@@ -1043,6 +1043,7 @@ static int garmin_write_bulk(struct usb_
 		   "%s - usb_submit_urb(write bulk) failed with status = %d\n",
 				__func__, status);
 		count = status;
+		kfree(buffer);
 	}
 
 	/* we are done with this urb, so let the host driver
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/io_edgeport.c linux-libre-4.9.52-gnu/drivers/usb/serial/io_edgeport.c
--- linux-libre-4.9-gnu/drivers/usb/serial/io_edgeport.c	2016-12-11 18:00:17.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/io_edgeport.c	2017-09-27 15:15:55.000000000 -0400
@@ -492,20 +492,24 @@ static int get_epic_descriptor(struct ed
 	int result;
 	struct usb_serial *serial = ep->serial;
 	struct edgeport_product_info *product_info = &ep->product_info;
-	struct edge_compatibility_descriptor *epic = &ep->epic_descriptor;
+	struct edge_compatibility_descriptor *epic;
 	struct edge_compatibility_bits *bits;
 	struct device *dev = &serial->dev->dev;
 
 	ep->is_epic = 0;
+
+	epic = kmalloc(sizeof(*epic), GFP_KERNEL);
+	if (!epic)
+		return -ENOMEM;
+
 	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 				 USB_REQUEST_ION_GET_EPIC_DESC,
 				 0xC0, 0x00, 0x00,
-				 &ep->epic_descriptor,
-				 sizeof(struct edge_compatibility_descriptor),
+				 epic, sizeof(*epic),
 				 300);
-
-	if (result > 0) {
+	if (result == sizeof(*epic)) {
 		ep->is_epic = 1;
+		memcpy(&ep->epic_descriptor, epic, sizeof(*epic));
 		memset(product_info, 0, sizeof(struct edgeport_product_info));
 
 		product_info->NumPorts = epic->NumPorts;
@@ -534,8 +538,16 @@ static int get_epic_descriptor(struct ed
 		dev_dbg(dev, "  IOSPWriteLCR     : %s\n", bits->IOSPWriteLCR	? "TRUE": "FALSE");
 		dev_dbg(dev, "  IOSPSetBaudRate  : %s\n", bits->IOSPSetBaudRate	? "TRUE": "FALSE");
 		dev_dbg(dev, "  TrueEdgeport     : %s\n", bits->TrueEdgeport	? "TRUE": "FALSE");
+
+		result = 0;
+	} else if (result >= 0) {
+		dev_warn(&serial->interface->dev, "short epic descriptor received: %d\n",
+			 result);
+		result = -EIO;
 	}
 
+	kfree(epic);
+
 	return result;
 }
 
@@ -2093,8 +2105,7 @@ static int rom_write(struct usb_serial *
  * rom_read
  *	reads a number of bytes from the Edgeport device starting at the given
  *	address.
- *	If successful returns the number of bytes read, otherwise it returns
- *	a negative error number of the problem.
+ *	Returns zero on success or a negative error number.
  ****************************************************************************/
 static int rom_read(struct usb_serial *serial, __u16 extAddr,
 					__u16 addr, __u16 length, __u8 *data)
@@ -2119,12 +2130,17 @@ static int rom_read(struct usb_serial *s
 					USB_REQUEST_ION_READ_ROM,
 					0xC0, addr, extAddr, transfer_buffer,
 					current_length, 300);
-		if (result < 0)
+		if (result < current_length) {
+			if (result >= 0)
+				result = -EIO;
 			break;
+		}
 		memcpy(data, transfer_buffer, current_length);
 		length -= current_length;
 		addr += current_length;
 		data += current_length;
+
+		result = 0;
 	}
 
 	kfree(transfer_buffer);
@@ -2578,9 +2594,10 @@ static void get_manufacturing_desc(struc
 				EDGE_MANUF_DESC_LEN,
 				(__u8 *)(&edge_serial->manuf_descriptor));
 
-	if (response < 1)
-		dev_err(dev, "error in getting manufacturer descriptor\n");
-	else {
+	if (response < 0) {
+		dev_err(dev, "error in getting manufacturer descriptor: %d\n",
+				response);
+	} else {
 		char string[30];
 		dev_dbg(dev, "**Manufacturer Descriptor\n");
 		dev_dbg(dev, "  RomSize:        %dK\n",
@@ -2637,9 +2654,10 @@ static void get_boot_desc(struct edgepor
 				EDGE_BOOT_DESC_LEN,
 				(__u8 *)(&edge_serial->boot_descriptor));
 
-	if (response < 1)
-		dev_err(dev, "error in getting boot descriptor\n");
-	else {
+	if (response < 0) {
+		dev_err(dev, "error in getting boot descriptor: %d\n",
+				response);
+	} else {
 		dev_dbg(dev, "**Boot Descriptor:\n");
 		dev_dbg(dev, "  BootCodeLength: %d\n",
 			le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
@@ -2754,6 +2772,11 @@ static int edge_startup(struct usb_seria
 					EDGE_COMPATIBILITY_MASK1,
 					EDGE_COMPATIBILITY_MASK2 };
 
+	if (serial->num_bulk_in < 1 || serial->num_interrupt_in < 1) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
 	dev = serial->dev;
 
 	/* create our private serial structure */
@@ -2777,7 +2800,7 @@ static int edge_startup(struct usb_seria
 	dev_info(&serial->dev->dev, "%s detected\n", edge_serial->name);
 
 	/* Read the epic descriptor */
-	if (get_epic_descriptor(edge_serial) <= 0) {
+	if (get_epic_descriptor(edge_serial) < 0) {
 		/* memcpy descriptor to Supports structures */
 		memcpy(&edge_serial->epic_descriptor.Supports, descriptor,
 		       sizeof(struct edge_compatibility_bits));
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/io_ti.c linux-libre-4.9.52-gnu/drivers/usb/serial/io_ti.c
--- linux-libre-4.9-gnu/drivers/usb/serial/io_ti.c	2016-12-11 18:00:24.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/io_ti.c	2017-09-27 15:16:11.000000000 -0400
@@ -1499,8 +1499,7 @@ static int do_boot_mode(struct edgeport_
 
 		dev_dbg(dev, "%s - Download successful -- Device rebooting...\n", __func__);
 
-		/* return an error on purpose */
-		return -ENODEV;
+		return 1;
 	}
 
 stayinbootmode:
@@ -1508,7 +1507,7 @@ stayinbootmode:
 	dev_dbg(dev, "%s - STAYING IN BOOT MODE\n", __func__);
 	serial->product_info.TiMode = TI_MODE_BOOT;
 
-	return 0;
+	return 1;
 }
 
 static int ti_do_config(struct edgeport_port *port, int feature, int on)
@@ -1675,6 +1674,12 @@ static void edge_interrupt_callback(stru
 	function    = TIUMP_GET_FUNC_FROM_CODE(data[0]);
 	dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__,
 		port_number, function, data[1]);
+
+	if (port_number >= edge_serial->serial->num_ports) {
+		dev_err(dev, "bad port number %d\n", port_number);
+		goto exit;
+	}
+
 	port = edge_serial->serial->port[port_number];
 	edge_port = usb_get_serial_port_data(port);
 	if (!edge_port) {
@@ -1756,7 +1761,7 @@ static void edge_bulk_in_callback(struct
 
 	port_number = edge_port->port->port_number;
 
-	if (edge_port->lsr_event) {
+	if (urb->actual_length > 0 && edge_port->lsr_event) {
 		edge_port->lsr_event = 0;
 		dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n",
 			__func__, port_number, edge_port->lsr_mask, *data);
@@ -2344,8 +2349,11 @@ static void change_port_settings(struct
 	if (!baud) {
 		/* pick a default, any default... */
 		baud = 9600;
-	} else
+	} else {
+		/* Avoid a zero divisor. */
+		baud = min(baud, 461550);
 		tty_encode_baud_rate(tty, baud, baud);
+	}
 
 	edge_port->baud_rate = baud;
 	config->wBaudRate = (__u16)((461550L + baud/2) / baud);
@@ -2549,6 +2557,13 @@ static int edge_startup(struct usb_seria
 	int status;
 	u16 product_id;
 
+	/* Make sure we have the required endpoints when in download mode. */
+	if (serial->interface->cur_altsetting->desc.bNumEndpoints > 1) {
+		if (serial->num_bulk_in < serial->num_ports ||
+				serial->num_bulk_out < serial->num_ports)
+			return -ENODEV;
+	}
+
 	/* create our private serial structure */
 	edge_serial = kzalloc(sizeof(struct edgeport_serial), GFP_KERNEL);
 	if (!edge_serial)
@@ -2556,14 +2571,18 @@ static int edge_startup(struct usb_seria
 
 	mutex_init(&edge_serial->es_lock);
 	edge_serial->serial = serial;
+	INIT_DELAYED_WORK(&edge_serial->heartbeat_work, edge_heartbeat_work);
 	usb_set_serial_data(serial, edge_serial);
 
 	status = download_fw(edge_serial);
-	if (status) {
+	if (status < 0) {
 		kfree(edge_serial);
 		return status;
 	}
 
+	if (status > 0)
+		return 1;	/* bind but do not register any ports */
+
 	product_id = le16_to_cpu(
 			edge_serial->serial->dev->descriptor.idProduct);
 
@@ -2575,7 +2594,6 @@ static int edge_startup(struct usb_seria
 		}
 	}
 
-	INIT_DELAYED_WORK(&edge_serial->heartbeat_work, edge_heartbeat_work);
 	edge_heartbeat_schedule(edge_serial);
 
 	return 0;
@@ -2583,6 +2601,9 @@ static int edge_startup(struct usb_seria
 
 static void edge_disconnect(struct usb_serial *serial)
 {
+	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
+
+	cancel_delayed_work_sync(&edge_serial->heartbeat_work);
 }
 
 static void edge_release(struct usb_serial *serial)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/iuu_phoenix.c linux-libre-4.9.52-gnu/drivers/usb/serial/iuu_phoenix.c
--- linux-libre-4.9-gnu/drivers/usb/serial/iuu_phoenix.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/iuu_phoenix.c	2017-09-27 08:40:05.000000000 -0400
@@ -68,6 +68,16 @@ struct iuu_private {
 	u32 clk;
 };
 
+static int iuu_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_in < num_ports || serial->num_bulk_out < num_ports)
+		return -ENODEV;
+
+	return 0;
+}
+
 static int iuu_port_probe(struct usb_serial_port *port)
 {
 	struct iuu_private *priv;
@@ -1196,6 +1206,7 @@ static struct usb_serial_driver iuu_devi
 	.tiocmset = iuu_tiocmset,
 	.set_termios = iuu_set_termios,
 	.init_termios = iuu_init_termios,
+	.attach = iuu_attach,
 	.port_probe = iuu_port_probe,
 	.port_remove = iuu_port_remove,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/keyspan_pda.c linux-libre-4.9.52-gnu/drivers/usb/serial/keyspan_pda.c
--- linux-libre-4.9-gnu/drivers/usb/serial/keyspan_pda.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/keyspan_pda.c	2017-09-27 08:40:05.000000000 -0400
@@ -139,6 +139,7 @@ static void keyspan_pda_rx_interrupt(str
 {
 	struct usb_serial_port *port = urb->context;
 	unsigned char *data = urb->transfer_buffer;
+	unsigned int len = urb->actual_length;
 	int retval;
 	int status = urb->status;
 	struct keyspan_pda_private *priv;
@@ -159,18 +160,26 @@ static void keyspan_pda_rx_interrupt(str
 		goto exit;
 	}
 
+	if (len < 1) {
+		dev_warn(&port->dev, "short message received\n");
+		goto exit;
+	}
+
 	/* see if the message is data or a status interrupt */
 	switch (data[0]) {
 	case 0:
 		 /* rest of message is rx data */
-		if (urb->actual_length) {
-			tty_insert_flip_string(&port->port, data + 1,
-						urb->actual_length - 1);
-			tty_flip_buffer_push(&port->port);
-		}
+		if (len < 2)
+			break;
+		tty_insert_flip_string(&port->port, data + 1, len - 1);
+		tty_flip_buffer_push(&port->port);
 		break;
 	case 1:
 		/* status interrupt */
+		if (len < 3) {
+			dev_warn(&port->dev, "short interrupt message received\n");
+			break;
+		}
 		dev_dbg(&port->dev, "rx int, d1=%d, d2=%d\n", data[1], data[2]);
 		switch (data[1]) {
 		case 1: /* modemline change */
@@ -699,6 +708,19 @@ MODULE_FIRMWARE("keyspan_pda/keyspan_pda
 MODULE_FIRMWARE("keyspan_pda/xircom_pgs.fw");
 #endif
 
+static int keyspan_pda_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_out < num_ports ||
+			serial->num_interrupt_in < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int keyspan_pda_port_probe(struct usb_serial_port *port)
 {
 
@@ -776,6 +798,7 @@ static struct usb_serial_driver keyspan_
 	.break_ctl =		keyspan_pda_break_ctl,
 	.tiocmget =		keyspan_pda_tiocmget,
 	.tiocmset =		keyspan_pda_tiocmset,
+	.attach =		keyspan_pda_attach,
 	.port_probe =		keyspan_pda_port_probe,
 	.port_remove =		keyspan_pda_port_remove,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/kl5kusb105.c linux-libre-4.9.52-gnu/drivers/usb/serial/kl5kusb105.c
--- linux-libre-4.9-gnu/drivers/usb/serial/kl5kusb105.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/kl5kusb105.c	2017-09-27 08:40:05.000000000 -0400
@@ -192,10 +192,11 @@ static int klsi_105_get_line_state(struc
 			     status_buf, KLSI_STATUSBUF_LEN,
 			     10000
 			     );
-	if (rc < 0)
-		dev_err(&port->dev, "Reading line status failed (error = %d)\n",
-			rc);
-	else {
+	if (rc != KLSI_STATUSBUF_LEN) {
+		dev_err(&port->dev, "reading line status failed: %d\n", rc);
+		if (rc >= 0)
+			rc = -EIO;
+	} else {
 		status = get_unaligned_le16(status_buf);
 
 		dev_info(&port->serial->dev->dev, "read status %x %x\n",
@@ -296,7 +297,7 @@ static int  klsi_105_open(struct tty_str
 	rc = usb_serial_generic_open(tty, port);
 	if (rc) {
 		retval = rc;
-		goto exit;
+		goto err_free_cfg;
 	}
 
 	rc = usb_control_msg(port->serial->dev,
@@ -311,21 +312,38 @@ static int  klsi_105_open(struct tty_str
 	if (rc < 0) {
 		dev_err(&port->dev, "Enabling read failed (error = %d)\n", rc);
 		retval = rc;
+		goto err_generic_close;
 	} else
 		dev_dbg(&port->dev, "%s - enabled reading\n", __func__);
 
 	rc = klsi_105_get_line_state(port, &line_state);
-	if (rc >= 0) {
-		spin_lock_irqsave(&priv->lock, flags);
-		priv->line_state = line_state;
-		spin_unlock_irqrestore(&priv->lock, flags);
-		dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__, line_state);
-		retval = 0;
-	} else
+	if (rc < 0) {
 		retval = rc;
+		goto err_disable_read;
+	}
 
-exit:
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->line_state = line_state;
+	spin_unlock_irqrestore(&priv->lock, flags);
+	dev_dbg(&port->dev, "%s - read line state 0x%lx\n", __func__,
+			line_state);
+
+	return 0;
+
+err_disable_read:
+	usb_control_msg(port->serial->dev,
+			     usb_sndctrlpipe(port->serial->dev, 0),
+			     KL5KUSB105A_SIO_CONFIGURE,
+			     USB_TYPE_VENDOR | USB_DIR_OUT,
+			     KL5KUSB105A_SIO_CONFIGURE_READ_OFF,
+			     0, /* index */
+			     NULL, 0,
+			     KLSI_TIMEOUT);
+err_generic_close:
+	usb_serial_generic_close(port);
+err_free_cfg:
 	kfree(cfg);
+
 	return retval;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/kobil_sct.c linux-libre-4.9.52-gnu/drivers/usb/serial/kobil_sct.c
--- linux-libre-4.9-gnu/drivers/usb/serial/kobil_sct.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/kobil_sct.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,6 +51,7 @@
 
 
 /* Function prototypes */
+static int kobil_attach(struct usb_serial *serial);
 static int kobil_port_probe(struct usb_serial_port *probe);
 static int kobil_port_remove(struct usb_serial_port *probe);
 static int  kobil_open(struct tty_struct *tty, struct usb_serial_port *port);
@@ -86,6 +87,7 @@ static struct usb_serial_driver kobil_de
 	.description =		"KOBIL USB smart card terminal",
 	.id_table =		id_table,
 	.num_ports =		1,
+	.attach =		kobil_attach,
 	.port_probe =		kobil_port_probe,
 	.port_remove =		kobil_port_remove,
 	.ioctl =		kobil_ioctl,
@@ -113,6 +115,16 @@ struct kobil_private {
 };
 
 
+static int kobil_attach(struct usb_serial *serial)
+{
+	if (serial->num_interrupt_out < serial->num_ports) {
+		dev_err(&serial->interface->dev, "missing interrupt-out endpoint\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int kobil_port_probe(struct usb_serial_port *port)
 {
 	struct usb_serial *serial = port->serial;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/mct_u232.c linux-libre-4.9.52-gnu/drivers/usb/serial/mct_u232.c
--- linux-libre-4.9-gnu/drivers/usb/serial/mct_u232.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/mct_u232.c	2017-09-27 08:40:05.000000000 -0400
@@ -189,7 +189,7 @@ static int mct_u232_set_baud_rate(struct
 		return -ENOMEM;
 
 	divisor = mct_u232_calculate_baud_rate(serial, value, &speed);
-	put_unaligned_le32(cpu_to_le32(divisor), buf);
+	put_unaligned_le32(divisor, buf);
 	rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 				MCT_U232_SET_BAUD_RATE_REQUEST,
 				MCT_U232_SET_REQUEST_TYPE,
@@ -322,8 +322,12 @@ static int mct_u232_get_modem_stat(struc
 			MCT_U232_GET_REQUEST_TYPE,
 			0, 0, buf, MCT_U232_GET_MODEM_STAT_SIZE,
 			WDR_TIMEOUT);
-	if (rc < 0) {
+	if (rc < MCT_U232_GET_MODEM_STAT_SIZE) {
 		dev_err(&port->dev, "Get MODEM STATus failed (error = %d)\n", rc);
+
+		if (rc >= 0)
+			rc = -EIO;
+
 		*msr = 0;
 	} else {
 		*msr = buf[0];
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/mos7720.c linux-libre-4.9.52-gnu/drivers/usb/serial/mos7720.c
--- linux-libre-4.9-gnu/drivers/usb/serial/mos7720.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/mos7720.c	2017-09-27 08:40:05.000000000 -0400
@@ -65,8 +65,6 @@ struct moschip_port {
 	struct urb		*write_urb_pool[NUM_URBS];
 };
 
-static struct usb_serial_driver moschip7720_2port_driver;
-
 #define USB_VENDOR_ID_MOSCHIP		0x9710
 #define MOSCHIP_DEVICE_ID_7720		0x7720
 #define MOSCHIP_DEVICE_ID_7715		0x7715
@@ -970,25 +968,6 @@ static void mos7720_bulk_out_data_callba
 		tty_port_tty_wakeup(&mos7720_port->port->port);
 }
 
-/*
- * mos77xx_probe
- *	this function installs the appropriate read interrupt endpoint callback
- *	depending on whether the device is a 7720 or 7715, thus avoiding costly
- *	run-time checks in the high-frequency callback routine itself.
- */
-static int mos77xx_probe(struct usb_serial *serial,
-			 const struct usb_device_id *id)
-{
-	if (id->idProduct == MOSCHIP_DEVICE_ID_7715)
-		moschip7720_2port_driver.read_int_callback =
-			mos7715_interrupt_callback;
-	else
-		moschip7720_2port_driver.read_int_callback =
-			mos7720_interrupt_callback;
-
-	return 0;
-}
-
 static int mos77xx_calc_num_ports(struct usb_serial *serial)
 {
 	u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
@@ -1920,6 +1899,11 @@ static int mos7720_startup(struct usb_se
 	u16 product;
 	int ret_val;
 
+	if (serial->num_bulk_in < 2 || serial->num_bulk_out < 2) {
+		dev_err(&serial->interface->dev, "missing bulk endpoints\n");
+		return -ENODEV;
+	}
+
 	product = le16_to_cpu(serial->dev->descriptor.idProduct);
 	dev = serial->dev;
 
@@ -1944,19 +1928,18 @@ static int mos7720_startup(struct usb_se
 			tmp->interrupt_in_endpointAddress;
 		serial->port[1]->interrupt_in_urb = NULL;
 		serial->port[1]->interrupt_in_buffer = NULL;
+
+		if (serial->port[0]->interrupt_in_urb) {
+			struct urb *urb = serial->port[0]->interrupt_in_urb;
+
+			urb->complete = mos7715_interrupt_callback;
+		}
 	}
 
 	/* setting configuration feature to one */
 	usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 			(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000);
 
-	/* start the interrupt urb */
-	ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL);
-	if (ret_val)
-		dev_err(&dev->dev,
-			"%s - Error %d submitting control urb\n",
-			__func__, ret_val);
-
 #ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
 	if (product == MOSCHIP_DEVICE_ID_7715) {
 		ret_val = mos7715_parport_init(serial);
@@ -1964,6 +1947,13 @@ static int mos7720_startup(struct usb_se
 			return ret_val;
 	}
 #endif
+	/* start the interrupt urb */
+	ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL);
+	if (ret_val) {
+		dev_err(&dev->dev, "failed to submit interrupt urb: %d\n",
+			ret_val);
+	}
+
 	/* LSR For Port 1 */
 	read_mos_reg(serial, 0, MOS7720_LSR, &data);
 	dev_dbg(&dev->dev, "LSR:%x\n", data);
@@ -1973,6 +1963,8 @@ static int mos7720_startup(struct usb_se
 
 static void mos7720_release(struct usb_serial *serial)
 {
+	usb_kill_urb(serial->port[0]->interrupt_in_urb);
+
 #ifdef CONFIG_USB_SERIAL_MOS7715_PARPORT
 	/* close the parallel port */
 
@@ -2056,7 +2048,6 @@ static struct usb_serial_driver moschip7
 	.close			= mos7720_close,
 	.throttle		= mos7720_throttle,
 	.unthrottle		= mos7720_unthrottle,
-	.probe			= mos77xx_probe,
 	.attach			= mos7720_startup,
 	.release		= mos7720_release,
 	.port_probe		= mos7720_port_probe,
@@ -2070,7 +2061,7 @@ static struct usb_serial_driver moschip7
 	.chars_in_buffer	= mos7720_chars_in_buffer,
 	.break_ctl		= mos7720_break,
 	.read_bulk_callback	= mos7720_bulk_in_callback,
-	.read_int_callback	= NULL  /* dynamically assigned in probe() */
+	.read_int_callback	= mos7720_interrupt_callback,
 };
 
 static struct usb_serial_driver * const serial_drivers[] = {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/mos7840.c linux-libre-4.9.52-gnu/drivers/usb/serial/mos7840.c
--- linux-libre-4.9-gnu/drivers/usb/serial/mos7840.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/mos7840.c	2017-09-27 08:40:05.000000000 -0400
@@ -1024,6 +1024,7 @@ static int mos7840_open(struct tty_struc
 	 * (can't set it up in mos7840_startup as the structures *
 	 * were not set up at that time.)                        */
 	if (port0->open_ports == 1) {
+		/* FIXME: Buffer never NULL, so URB is not submitted. */
 		if (serial->port[0]->interrupt_in_buffer == NULL) {
 			/* set up interrupt urb */
 			usb_fill_int_urb(serial->port[0]->interrupt_in_urb,
@@ -2116,6 +2117,18 @@ static int mos7840_calc_num_ports(struct
 	return mos7840_num_ports;
 }
 
+static int mos7840_attach(struct usb_serial *serial)
+{
+	if (serial->num_bulk_in < serial->num_ports ||
+			serial->num_bulk_out < serial->num_ports ||
+			serial->num_interrupt_in < 1) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int mos7840_port_probe(struct usb_serial_port *port)
 {
 	struct usb_serial *serial = port->serial;
@@ -2391,6 +2404,7 @@ static struct usb_serial_driver moschip7
 	.tiocmset = mos7840_tiocmset,
 	.tiocmiwait = usb_serial_generic_tiocmiwait,
 	.get_icount = usb_serial_generic_get_icount,
+	.attach = mos7840_attach,
 	.port_probe = mos7840_port_probe,
 	.port_remove = mos7840_port_remove,
 	.read_bulk_callback = mos7840_bulk_in_callback,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/omninet.c linux-libre-4.9.52-gnu/drivers/usb/serial/omninet.c
--- linux-libre-4.9-gnu/drivers/usb/serial/omninet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/omninet.c	2017-09-27 08:40:05.000000000 -0400
@@ -38,6 +38,7 @@ static int  omninet_write(struct tty_str
 				const unsigned char *buf, int count);
 static int  omninet_write_room(struct tty_struct *tty);
 static void omninet_disconnect(struct usb_serial *serial);
+static int omninet_attach(struct usb_serial *serial);
 static int omninet_port_probe(struct usb_serial_port *port);
 static int omninet_port_remove(struct usb_serial_port *port);
 
@@ -56,6 +57,7 @@ static struct usb_serial_driver zyxel_om
 	.description =		"ZyXEL - omni.net lcd plus usb",
 	.id_table =		id_table,
 	.num_ports =		1,
+	.attach =		omninet_attach,
 	.port_probe =		omninet_port_probe,
 	.port_remove =		omninet_port_remove,
 	.open =			omninet_open,
@@ -104,6 +106,17 @@ struct omninet_data {
 	__u8	od_outseq;	/* Sequence number for bulk_out URBs */
 };
 
+static int omninet_attach(struct usb_serial *serial)
+{
+	/* The second bulk-out endpoint is used for writing. */
+	if (serial->num_bulk_out < 2) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int omninet_port_probe(struct usb_serial_port *port)
 {
 	struct omninet_data *od;
@@ -129,12 +142,6 @@ static int omninet_port_remove(struct us
 
 static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
-	struct usb_serial	*serial = port->serial;
-	struct usb_serial_port	*wport;
-
-	wport = serial->port[1];
-	tty_port_tty_set(&wport->port, tty);
-
 	return usb_serial_generic_open(tty, port);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/opticon.c linux-libre-4.9.52-gnu/drivers/usb/serial/opticon.c
--- linux-libre-4.9-gnu/drivers/usb/serial/opticon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/opticon.c	2017-09-27 08:40:05.000000000 -0400
@@ -142,7 +142,7 @@ static int opticon_open(struct tty_struc
 	usb_clear_halt(port->serial->dev, port->read_urb->pipe);
 
 	res = usb_serial_generic_open(tty, port);
-	if (!res)
+	if (res)
 		return res;
 
 	/* Request CTS line state, sometimes during opening the current
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/option.c linux-libre-4.9.52-gnu/drivers/usb/serial/option.c
--- linux-libre-4.9-gnu/drivers/usb/serial/option.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/option.c	2017-09-27 08:40:05.000000000 -0400
@@ -233,6 +233,14 @@ static void option_instat_callback(struc
 #define BANDRICH_PRODUCT_1012			0x1012
 
 #define QUALCOMM_VENDOR_ID			0x05C6
+/* These Quectel products use Qualcomm's vendor ID */
+#define QUECTEL_PRODUCT_UC20			0x9003
+#define QUECTEL_PRODUCT_UC15			0x9090
+
+#define QUECTEL_VENDOR_ID			0x2c7c
+/* These Quectel products use Quectel's vendor ID */
+#define QUECTEL_PRODUCT_EC21			0x0121
+#define QUECTEL_PRODUCT_EC25			0x0125
 
 #define CMOTECH_VENDOR_ID			0x16d8
 #define CMOTECH_PRODUCT_6001			0x6001
@@ -268,9 +276,12 @@ static void option_instat_callback(struc
 #define TELIT_PRODUCT_CC864_SINGLE		0x1006
 #define TELIT_PRODUCT_DE910_DUAL		0x1010
 #define TELIT_PRODUCT_UE910_V2			0x1012
+#define TELIT_PRODUCT_LE922_USBCFG1		0x1040
+#define TELIT_PRODUCT_LE922_USBCFG2		0x1041
 #define TELIT_PRODUCT_LE922_USBCFG0		0x1042
 #define TELIT_PRODUCT_LE922_USBCFG3		0x1043
 #define TELIT_PRODUCT_LE922_USBCFG5		0x1045
+#define TELIT_PRODUCT_ME910			0x1100
 #define TELIT_PRODUCT_LE920			0x1200
 #define TELIT_PRODUCT_LE910			0x1201
 #define TELIT_PRODUCT_LE910_USBCFG4		0x1206
@@ -630,6 +641,11 @@ static const struct option_blacklist_inf
 	.reserved = BIT(5) | BIT(6),
 };
 
+static const struct option_blacklist_info telit_me910_blacklist = {
+	.sendsetup = BIT(0),
+	.reserved = BIT(1) | BIT(3),
+};
+
 static const struct option_blacklist_info telit_le910_blacklist = {
 	.sendsetup = BIT(0),
 	.reserved = BIT(1) | BIT(2),
@@ -1159,7 +1175,14 @@ static const struct usb_device_id option
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
-	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9003), /* Quectel UC20 */
+	/* Quectel products using Qualcomm vendor ID */
+	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)},
+	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	/* Quectel products using Quectel vendor ID */
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	{ USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25),
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
@@ -1210,10 +1233,16 @@ static const struct usb_device_id option
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UE910_V2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG0),
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG1),
+		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG2),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG3),
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE922_USBCFG5, 0xff),
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
+		.driver_info = (kernel_ulong_t)&telit_me910_blacklist },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
 		.driver_info = (kernel_ulong_t)&telit_le910_blacklist },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
@@ -1848,6 +1877,10 @@ static const struct usb_device_id option
 	  .driver_info = (kernel_ulong_t)&four_g_w100_blacklist
 	},
 	{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, SPEEDUP_PRODUCT_SU9800, 0xff) },
+	{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, 0x9801, 0xff),
+	  .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
+	{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, 0x9803, 0xff),
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, ZOOM_PRODUCT_4597) },
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, IBALL_3_5G_CONNECT) },
 	{ USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) },
@@ -1989,8 +2022,12 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x02, 0x01) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) },			/* D-Link DWM-158 */
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d0e, 0xff) },			/* D-Link DWM-157 C1 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff),			/* D-Link DWM-221 B1 */
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff),			/* D-Link DWM-222 */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */
@@ -2000,6 +2037,7 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD200, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_6802, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD300, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x421d, 0xff, 0xff, 0xff) }, /* HP lt2523 (Novatel E371) */
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/oti6858.c linux-libre-4.9.52-gnu/drivers/usb/serial/oti6858.c
--- linux-libre-4.9-gnu/drivers/usb/serial/oti6858.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/oti6858.c	2017-09-27 08:40:05.000000000 -0400
@@ -134,6 +134,7 @@ static int oti6858_chars_in_buffer(struc
 static int oti6858_tiocmget(struct tty_struct *tty);
 static int oti6858_tiocmset(struct tty_struct *tty,
 				unsigned int set, unsigned int clear);
+static int oti6858_attach(struct usb_serial *serial);
 static int oti6858_port_probe(struct usb_serial_port *port);
 static int oti6858_port_remove(struct usb_serial_port *port);
 
@@ -158,6 +159,7 @@ static struct usb_serial_driver oti6858_
 	.write_bulk_callback =	oti6858_write_bulk_callback,
 	.write_room =		oti6858_write_room,
 	.chars_in_buffer =	oti6858_chars_in_buffer,
+	.attach =		oti6858_attach,
 	.port_probe =		oti6858_port_probe,
 	.port_remove =		oti6858_port_remove,
 };
@@ -324,6 +326,20 @@ static void send_data(struct work_struct
 	usb_serial_port_softint(port);
 }
 
+static int oti6858_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_in < num_ports ||
+			serial->num_bulk_out < num_ports ||
+			serial->num_interrupt_in < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int oti6858_port_probe(struct usb_serial_port *port)
 {
 	struct oti6858_private *priv;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/pl2303.c linux-libre-4.9.52-gnu/drivers/usb/serial/pl2303.c
--- linux-libre-4.9-gnu/drivers/usb/serial/pl2303.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/pl2303.c	2017-09-27 08:40:05.000000000 -0400
@@ -49,6 +49,8 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) },
 	{ USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) },
 	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) },
+	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_UC485) },
+	{ USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID2) },
 	{ USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) },
 	{ USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) },
 	{ USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) },
@@ -220,9 +222,17 @@ static int pl2303_probe(struct usb_seria
 static int pl2303_startup(struct usb_serial *serial)
 {
 	struct pl2303_serial_private *spriv;
+	unsigned char num_ports = serial->num_ports;
 	enum pl2303_type type = TYPE_01;
 	unsigned char *buf;
 
+	if (serial->num_bulk_in < num_ports ||
+			serial->num_bulk_out < num_ports ||
+			serial->num_interrupt_in < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
 	spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
 	if (!spriv)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/pl2303.h linux-libre-4.9.52-gnu/drivers/usb/serial/pl2303.h
--- linux-libre-4.9-gnu/drivers/usb/serial/pl2303.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/pl2303.h	2017-09-27 08:40:05.000000000 -0400
@@ -27,6 +27,8 @@
 #define ATEN_VENDOR_ID		0x0557
 #define ATEN_VENDOR_ID2		0x0547
 #define ATEN_PRODUCT_ID		0x2008
+#define ATEN_PRODUCT_UC485	0x2021
+#define ATEN_PRODUCT_ID2	0x2118
 
 #define IODATA_VENDOR_ID	0x04bb
 #define IODATA_PRODUCT_ID	0x0a03
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/qcserial.c linux-libre-4.9.52-gnu/drivers/usb/serial/qcserial.c
--- linux-libre-4.9-gnu/drivers/usb/serial/qcserial.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/qcserial.c	2017-09-27 08:40:05.000000000 -0400
@@ -124,6 +124,7 @@ static const struct usb_device_id id_tab
 	{USB_DEVICE(0x1410, 0xa021)},	/* Novatel Gobi 3000 Composite */
 	{USB_DEVICE(0x413c, 0x8193)},	/* Dell Gobi 3000 QDL */
 	{USB_DEVICE(0x413c, 0x8194)},	/* Dell Gobi 3000 Composite */
+	{USB_DEVICE(0x413c, 0x81a6)},	/* Dell DW5570 QDL (MC8805) */
 	{USB_DEVICE(0x1199, 0x68a4)},	/* Sierra Wireless QDL */
 	{USB_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
 	{USB_DEVICE(0x1199, 0x68a8)},	/* Sierra Wireless QDL */
@@ -157,10 +158,13 @@ static const struct usb_device_id id_tab
 	{DEVICE_SWI(0x1199, 0x9056)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9060)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9061)},	/* Sierra Wireless Modem */
+	{DEVICE_SWI(0x1199, 0x9063)},	/* Sierra Wireless EM7305 */
 	{DEVICE_SWI(0x1199, 0x9070)},	/* Sierra Wireless MC74xx */
 	{DEVICE_SWI(0x1199, 0x9071)},	/* Sierra Wireless MC74xx */
 	{DEVICE_SWI(0x1199, 0x9078)},	/* Sierra Wireless EM74xx */
 	{DEVICE_SWI(0x1199, 0x9079)},	/* Sierra Wireless EM74xx */
+	{DEVICE_SWI(0x1199, 0x907a)},	/* Sierra Wireless EM74xx QDL */
+	{DEVICE_SWI(0x1199, 0x907b)},	/* Sierra Wireless EM74xx */
 	{DEVICE_SWI(0x413c, 0x81a2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a4)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
@@ -168,6 +172,8 @@ static const struct usb_device_id id_tab
 	{DEVICE_SWI(0x413c, 0x81a9)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81b1)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81b3)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
+	{DEVICE_SWI(0x413c, 0x81b5)},	/* Dell Wireless 5811e QDL */
+	{DEVICE_SWI(0x413c, 0x81b6)},	/* Dell Wireless 5811e QDL */
 
 	/* Huawei devices */
 	{DEVICE_HWI(0x03f0, 0x581d)},	/* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/quatech2.c linux-libre-4.9.52-gnu/drivers/usb/serial/quatech2.c
--- linux-libre-4.9-gnu/drivers/usb/serial/quatech2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/quatech2.c	2017-09-27 08:40:05.000000000 -0400
@@ -188,22 +188,22 @@ static inline int qt2_setdevice(struct u
 }
 
 
-static inline int qt2_getdevice(struct usb_device *dev, u8 *data)
-{
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_DEVICE, 0xc0, 0, 0,
-			       data, 3, QT2_USB_TIMEOUT);
-}
-
 static inline int qt2_getregister(struct usb_device *dev,
 				  u8 uart,
 				  u8 reg,
 				  u8 *data)
 {
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_REGISTER, 0xc0, reg,
-			       uart, data, sizeof(*data), QT2_USB_TIMEOUT);
+	int ret;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			      QT_SET_GET_REGISTER, 0xc0, reg,
+			      uart, data, sizeof(*data), QT2_USB_TIMEOUT);
+	if (ret < sizeof(*data)) {
+		if (ret >= 0)
+			ret = -EIO;
+	}
 
+	return ret;
 }
 
 static inline int qt2_setregister(struct usb_device *dev,
@@ -372,9 +372,11 @@ static int qt2_open(struct tty_struct *t
 				 0xc0, 0,
 				 device_port, data, 2, QT2_USB_TIMEOUT);
 
-	if (status < 0) {
+	if (status < 2) {
 		dev_err(&port->dev, "%s - open port failed %i\n", __func__,
 			status);
+		if (status >= 0)
+			status = -EIO;
 		kfree(data);
 		return status;
 	}
@@ -408,16 +410,12 @@ static void qt2_close(struct usb_serial_
 {
 	struct usb_serial *serial;
 	struct qt2_port_private *port_priv;
-	unsigned long flags;
 	int i;
 
 	serial = port->serial;
 	port_priv = usb_get_serial_port_data(port);
 
-	spin_lock_irqsave(&port_priv->urb_lock, flags);
 	usb_kill_urb(port_priv->write_urb);
-	port_priv->urb_in_use = false;
-	spin_unlock_irqrestore(&port_priv->urb_lock, flags);
 
 	/* flush the port transmit buffer */
 	i = usb_control_msg(serial->dev,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/safe_serial.c linux-libre-4.9.52-gnu/drivers/usb/serial/safe_serial.c
--- linux-libre-4.9-gnu/drivers/usb/serial/safe_serial.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/safe_serial.c	2017-09-27 08:40:05.000000000 -0400
@@ -200,6 +200,11 @@ static void safe_process_read_urb(struct
 	if (!safe)
 		goto out;
 
+	if (length < 2) {
+		dev_err(&port->dev, "malformed packet\n");
+		return;
+	}
+
 	fcs = fcs_compute10(data, length, CRC10_INITFCS);
 	if (fcs) {
 		dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/spcp8x5.c linux-libre-4.9.52-gnu/drivers/usb/serial/spcp8x5.c
--- linux-libre-4.9-gnu/drivers/usb/serial/spcp8x5.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/spcp8x5.c	2017-09-27 08:40:05.000000000 -0400
@@ -154,6 +154,19 @@ static int spcp8x5_probe(struct usb_seri
 	return 0;
 }
 
+static int spcp8x5_attach(struct usb_serial *serial)
+{
+	unsigned char num_ports = serial->num_ports;
+
+	if (serial->num_bulk_in < num_ports ||
+			serial->num_bulk_out < num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int spcp8x5_port_probe(struct usb_serial_port *port)
 {
 	const struct usb_device_id *id = usb_get_serial_data(port->serial);
@@ -219,11 +232,17 @@ static int spcp8x5_get_msr(struct usb_se
 	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 			      GET_UART_STATUS, GET_UART_STATUS_TYPE,
 			      0, GET_UART_STATUS_MSR, buf, 1, 100);
-	if (ret < 0)
+	if (ret < 1) {
 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
+		if (ret >= 0)
+			ret = -EIO;
+		goto out;
+	}
 
 	dev_dbg(&port->dev, "0xc0:0x22:0:6  %d - 0x02%x\n", ret, *buf);
 	*status = *buf;
+	ret = 0;
+out:
 	kfree(buf);
 
 	return ret;
@@ -477,6 +496,7 @@ static struct usb_serial_driver spcp8x5_
 	.tiocmget		= spcp8x5_tiocmget,
 	.tiocmset		= spcp8x5_tiocmset,
 	.probe			= spcp8x5_probe,
+	.attach			= spcp8x5_attach,
 	.port_probe		= spcp8x5_port_probe,
 	.port_remove		= spcp8x5_port_remove,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/ssu100.c linux-libre-4.9.52-gnu/drivers/usb/serial/ssu100.c
--- linux-libre-4.9-gnu/drivers/usb/serial/ssu100.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/ssu100.c	2017-09-27 08:40:05.000000000 -0400
@@ -80,9 +80,17 @@ static inline int ssu100_setdevice(struc
 
 static inline int ssu100_getdevice(struct usb_device *dev, u8 *data)
 {
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_DEVICE, 0xc0, 0, 0,
-			       data, 3, 300);
+	int ret;
+
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			      QT_SET_GET_DEVICE, 0xc0, 0, 0,
+			      data, 3, 300);
+	if (ret < 3) {
+		if (ret >= 0)
+			ret = -EIO;
+	}
+
+	return ret;
 }
 
 static inline int ssu100_getregister(struct usb_device *dev,
@@ -90,10 +98,17 @@ static inline int ssu100_getregister(str
 				     unsigned short reg,
 				     u8 *data)
 {
-	return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-			       QT_SET_GET_REGISTER, 0xc0, reg,
-			       uart, data, sizeof(*data), 300);
+	int ret;
 
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+			      QT_SET_GET_REGISTER, 0xc0, reg,
+			      uart, data, sizeof(*data), 300);
+	if (ret < sizeof(*data)) {
+		if (ret >= 0)
+			ret = -EIO;
+	}
+
+	return ret;
 }
 
 
@@ -289,8 +304,10 @@ static int ssu100_open(struct tty_struct
 				 QT_OPEN_CLOSE_CHANNEL,
 				 QT_TRANSFER_IN, 0x01,
 				 0, data, 2, 300);
-	if (result < 0) {
+	if (result < 2) {
 		dev_dbg(&port->dev, "%s - open failed %i\n", __func__, result);
+		if (result >= 0)
+			result = -EIO;
 		kfree(data);
 		return result;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/serial/ti_usb_3410_5052.c linux-libre-4.9.52-gnu/drivers/usb/serial/ti_usb_3410_5052.c
--- linux-libre-4.9-gnu/drivers/usb/serial/ti_usb_3410_5052.c	2016-12-11 18:00:30.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/serial/ti_usb_3410_5052.c	2017-09-27 15:16:23.000000000 -0400
@@ -568,6 +568,13 @@ static int ti_startup(struct usb_serial
 		goto free_tdev;
 	}
 
+	if (serial->num_bulk_in < serial->num_ports ||
+			serial->num_bulk_out < serial->num_ports) {
+		dev_err(&serial->interface->dev, "missing endpoints\n");
+		status = -ENODEV;
+		goto free_tdev;
+	}
+
 	return 0;
 
 free_tdev:
@@ -1538,13 +1545,10 @@ static int ti_command_out_sync(struct ti
 		(USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT),
 		value, moduleid, data, size, 1000);
 
-	if (status == size)
-		status = 0;
-
-	if (status > 0)
-		status = -ECOMM;
+	if (status < 0)
+		return status;
 
-	return status;
+	return 0;
 }
 
 
@@ -1560,8 +1564,7 @@ static int ti_command_in_sync(struct ti_
 
 	if (status == size)
 		status = 0;
-
-	if (status > 0)
+	else if (status >= 0)
 		status = -ECOMM;
 
 	return status;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/storage/ene_ub6250.c linux-libre-4.9.52-gnu/drivers/usb/storage/ene_ub6250.c
--- linux-libre-4.9-gnu/drivers/usb/storage/ene_ub6250.c	2016-12-11 18:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/storage/ene_ub6250.c	2017-09-27 15:15:21.000000000 -0400
@@ -441,6 +441,10 @@ struct ms_lib_ctrl {
 #define SD_BLOCK_LEN  9
 
 struct ene_ub6250_info {
+
+	/* I/O bounce buffer */
+	u8		*bbuf;
+
 	/* for 6250 code */
 	struct SD_STATUS	SD_Status;
 	struct MS_STATUS	MS_Status;
@@ -488,8 +492,11 @@ static int ene_load_bincode(struct us_da
 
 static void ene_ub6250_info_destructor(void *extra)
 {
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) extra;
+
 	if (!extra)
 		return;
+	kfree(info->bbuf);
 }
 
 static int ene_send_scsi_cmd(struct us_data *us, u8 fDir, void *buf, int use_sg)
@@ -855,8 +862,9 @@ static int ms_read_readpage(struct us_da
 		u8 PageNum, u32 *PageBuf, struct ms_lib_type_extdat *ExtraDat)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 	int result;
-	u8 ExtBuf[4];
 	u32 bn = PhyBlockAddr * 0x20 + PageNum;
 
 	result = ene_load_bincode(us, MS_RW_PATTERN);
@@ -896,7 +904,7 @@ static int ms_read_readpage(struct us_da
 	bcb->CDB[2]     = (unsigned char)(PhyBlockAddr>>16);
 	bcb->CDB[6]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &ExtBuf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
@@ -905,9 +913,9 @@ static int ms_read_readpage(struct us_da
 	ExtraDat->status0  = 0x10;  /* Not yet,fireware support */
 
 	ExtraDat->status1  = 0x00;  /* Not yet,fireware support */
-	ExtraDat->ovrflg   = ExtBuf[0];
-	ExtraDat->mngflg   = ExtBuf[1];
-	ExtraDat->logadr   = memstick_logaddr(ExtBuf[2], ExtBuf[3]);
+	ExtraDat->ovrflg   = bbuf[0];
+	ExtraDat->mngflg   = bbuf[1];
+	ExtraDat->logadr   = memstick_logaddr(bbuf[2], bbuf[3]);
 
 	return USB_STOR_TRANSPORT_GOOD;
 }
@@ -1327,8 +1335,9 @@ static int ms_lib_read_extra(struct us_d
 				u8 PageNum, struct ms_lib_type_extdat *ExtraDat)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 	int result;
-	u8 ExtBuf[4];
 
 	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
@@ -1342,7 +1351,7 @@ static int ms_lib_read_extra(struct us_d
 	bcb->CDB[2]     = (unsigned char)(PhyBlock>>16);
 	bcb->CDB[6]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &ExtBuf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
@@ -1350,9 +1359,9 @@ static int ms_lib_read_extra(struct us_d
 	ExtraDat->intr     = 0x80;  /* Not yet, waiting for fireware support */
 	ExtraDat->status0  = 0x10;  /* Not yet, waiting for fireware support */
 	ExtraDat->status1  = 0x00;  /* Not yet, waiting for fireware support */
-	ExtraDat->ovrflg   = ExtBuf[0];
-	ExtraDat->mngflg   = ExtBuf[1];
-	ExtraDat->logadr   = memstick_logaddr(ExtBuf[2], ExtBuf[3]);
+	ExtraDat->ovrflg   = bbuf[0];
+	ExtraDat->mngflg   = bbuf[1];
+	ExtraDat->logadr   = memstick_logaddr(bbuf[2], bbuf[3]);
 
 	return USB_STOR_TRANSPORT_GOOD;
 }
@@ -1553,9 +1562,9 @@ static int ms_lib_scan_logicalblocknumbe
 	u16 PhyBlock, newblk, i;
 	u16 LogStart, LogEnde;
 	struct ms_lib_type_extdat extdat;
-	u8 buf[0x200];
 	u32 count = 0, index = 0;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	for (PhyBlock = 0; PhyBlock < info->MS_Lib.NumberOfPhyBlock;) {
 		ms_lib_phy_to_log_range(PhyBlock, &LogStart, &LogEnde);
@@ -1569,14 +1578,16 @@ static int ms_lib_scan_logicalblocknumbe
 			}
 
 			if (count == PhyBlock) {
-				ms_lib_read_extrablock(us, PhyBlock, 0, 0x80, &buf);
+				ms_lib_read_extrablock(us, PhyBlock, 0, 0x80,
+						bbuf);
 				count += 0x80;
 			}
 			index = (PhyBlock % 0x80) * 4;
 
-			extdat.ovrflg = buf[index];
-			extdat.mngflg = buf[index+1];
-			extdat.logadr = memstick_logaddr(buf[index+2], buf[index+3]);
+			extdat.ovrflg = bbuf[index];
+			extdat.mngflg = bbuf[index+1];
+			extdat.logadr = memstick_logaddr(bbuf[index+2],
+					bbuf[index+3]);
 
 			if ((extdat.ovrflg & MS_REG_OVR_BKST) != MS_REG_OVR_BKST_OK) {
 				ms_lib_setacquired_errorblock(us, PhyBlock);
@@ -2059,9 +2070,9 @@ static int ene_ms_init(struct us_data *u
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	int result;
-	u8 buf[0x200];
 	u16 MSP_BlockSize, MSP_UserAreaBlocks;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	printk(KERN_INFO "transport --- ENE_MSInit\n");
 
@@ -2080,13 +2091,13 @@ static int ene_ms_init(struct us_data *u
 	bcb->CDB[0]     = 0xF1;
 	bcb->CDB[1]     = 0x01;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
 		printk(KERN_ERR "Execution MS Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 	/* the same part to test ENE */
-	info->MS_Status = *(struct MS_STATUS *)&buf[0];
+	info->MS_Status = *(struct MS_STATUS *) bbuf;
 
 	if (info->MS_Status.Insert && info->MS_Status.Ready) {
 		printk(KERN_INFO "Insert     = %x\n", info->MS_Status.Insert);
@@ -2095,15 +2106,15 @@ static int ene_ms_init(struct us_data *u
 		printk(KERN_INFO "IsMSPHG    = %x\n", info->MS_Status.IsMSPHG);
 		printk(KERN_INFO "WtP= %x\n", info->MS_Status.WtP);
 		if (info->MS_Status.IsMSPro) {
-			MSP_BlockSize      = (buf[6] << 8) | buf[7];
-			MSP_UserAreaBlocks = (buf[10] << 8) | buf[11];
+			MSP_BlockSize      = (bbuf[6] << 8) | bbuf[7];
+			MSP_UserAreaBlocks = (bbuf[10] << 8) | bbuf[11];
 			info->MSP_TotalBlock = MSP_BlockSize * MSP_UserAreaBlocks;
 		} else {
 			ms_card_init(us); /* Card is MS (to ms.c)*/
 		}
 		usb_stor_dbg(us, "MS Init Code OK !!\n");
 	} else {
-		usb_stor_dbg(us, "MS Card Not Ready --- %x\n", buf[0]);
+		usb_stor_dbg(us, "MS Card Not Ready --- %x\n", bbuf[0]);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
@@ -2113,9 +2124,9 @@ static int ene_ms_init(struct us_data *u
 static int ene_sd_init(struct us_data *us)
 {
 	int result;
-	u8  buf[0x200];
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	u8 *bbuf = info->bbuf;
 
 	usb_stor_dbg(us, "transport --- ENE_SDInit\n");
 	/* SD Init Part-1 */
@@ -2149,17 +2160,17 @@ static int ene_sd_init(struct us_data *u
 	bcb->Flags              = US_BULK_FLAG_IN;
 	bcb->CDB[0]             = 0xF1;
 
-	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
+	result = ene_send_scsi_cmd(us, FDIR_READ, bbuf, 0);
 	if (result != USB_STOR_XFER_GOOD) {
 		usb_stor_dbg(us, "Execution SD Init Code Fail !!\n");
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
-	info->SD_Status =  *(struct SD_STATUS *)&buf[0];
+	info->SD_Status =  *(struct SD_STATUS *) bbuf;
 	if (info->SD_Status.Insert && info->SD_Status.Ready) {
 		struct SD_STATUS *s = &info->SD_Status;
 
-		ene_get_card_status(us, (unsigned char *)&buf);
+		ene_get_card_status(us, bbuf);
 		usb_stor_dbg(us, "Insert     = %x\n", s->Insert);
 		usb_stor_dbg(us, "Ready      = %x\n", s->Ready);
 		usb_stor_dbg(us, "IsMMC      = %x\n", s->IsMMC);
@@ -2167,7 +2178,7 @@ static int ene_sd_init(struct us_data *u
 		usb_stor_dbg(us, "HiSpeed    = %x\n", s->HiSpeed);
 		usb_stor_dbg(us, "WtP        = %x\n", s->WtP);
 	} else {
-		usb_stor_dbg(us, "SD Card Not Ready --- %x\n", buf[0]);
+		usb_stor_dbg(us, "SD Card Not Ready --- %x\n", bbuf[0]);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 	return USB_STOR_TRANSPORT_GOOD;
@@ -2177,13 +2188,15 @@ static int ene_sd_init(struct us_data *u
 static int ene_init(struct us_data *us)
 {
 	int result;
-	u8  misc_reg03 = 0;
+	u8  misc_reg03;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
+	u8 *bbuf = info->bbuf;
 
-	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	result = ene_get_card_type(us, REG_CARD_STATUS, bbuf);
 	if (result != USB_STOR_XFER_GOOD)
 		return USB_STOR_TRANSPORT_ERROR;
 
+	misc_reg03 = bbuf[0];
 	if (misc_reg03 & 0x01) {
 		if (!info->SD_Status.Ready) {
 			result = ene_sd_init(us);
@@ -2300,8 +2313,9 @@ static int ene_ub6250_probe(struct usb_i
 			 const struct usb_device_id *id)
 {
 	int result;
-	u8  misc_reg03 = 0;
+	u8  misc_reg03;
 	struct us_data *us;
+	struct ene_ub6250_info *info;
 
 	result = usb_stor_probe1(&us, intf, id,
 		   (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list,
@@ -2310,11 +2324,16 @@ static int ene_ub6250_probe(struct usb_i
 		return result;
 
 	/* FIXME: where should the code alloc extra buf ? */
-	if (!us->extra) {
-		us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
-		if (!us->extra)
-			return -ENOMEM;
-		us->extra_destructor = ene_ub6250_info_destructor;
+	us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
+	if (!us->extra)
+		return -ENOMEM;
+	us->extra_destructor = ene_ub6250_info_destructor;
+
+	info = (struct ene_ub6250_info *)(us->extra);
+	info->bbuf = kmalloc(512, GFP_KERNEL);
+	if (!info->bbuf) {
+		kfree(us->extra);
+		return -ENOMEM;
 	}
 
 	us->transport_name = "ene_ub6250";
@@ -2326,12 +2345,13 @@ static int ene_ub6250_probe(struct usb_i
 		return result;
 
 	/* probe card type */
-	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	result = ene_get_card_type(us, REG_CARD_STATUS, info->bbuf);
 	if (result != USB_STOR_XFER_GOOD) {
 		usb_stor_disconnect(intf);
 		return USB_STOR_TRANSPORT_ERROR;
 	}
 
+	misc_reg03 = info->bbuf[0];
 	if (!(misc_reg03 & 0x01)) {
 		pr_info("ums_eneub6250: This driver only supports SD/MS cards. "
 			"It does not support SM cards.\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/storage/isd200.c linux-libre-4.9.52-gnu/drivers/usb/storage/isd200.c
--- linux-libre-4.9-gnu/drivers/usb/storage/isd200.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/storage/isd200.c	2017-09-27 08:40:05.000000000 -0400
@@ -1529,8 +1529,11 @@ static void isd200_ata_command(struct sc
 
 	/* Make sure driver was initialized */
 
-	if (us->extra == NULL)
+	if (us->extra == NULL) {
 		usb_stor_dbg(us, "ERROR Driver not initialized\n");
+		srb->result = DID_ERROR << 16;
+		return;
+	}
 
 	scsi_set_resid(srb, 0);
 	/* scsi_bufflen might change in protocol translation to ata */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/storage/unusual_devs.h linux-libre-4.9.52-gnu/drivers/usb/storage/unusual_devs.h
--- linux-libre-4.9-gnu/drivers/usb/storage/unusual_devs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/storage/unusual_devs.h	2017-09-27 08:40:05.000000000 -0400
@@ -2071,6 +2071,20 @@ UNUSUAL_DEV(  0x1370, 0x6828, 0x0110, 0x
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_IGNORE_RESIDUE ),
 
+/*
+ * Reported by Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
+ * The INIC-3619 bridge is used in the StarTech SLSODDU33B
+ * SATA-USB enclosure for slimline optical drives.
+ *
+ * The quirk enables MakeMKV to properly exchange keys with
+ * an installed BD drive.
+ */
+UNUSUAL_DEV(  0x13fd, 0x3609, 0x0209, 0x0209,
+		"Initio Corporation",
+		"INIC-3619",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_IGNORE_RESIDUE ),
+
 /* Reported by Qinglin Ye <yestyle@gmail.com> */
 UNUSUAL_DEV(  0x13fe, 0x3600, 0x0100, 0x0100,
 		"Kingston",
@@ -2109,6 +2123,13 @@ UNUSUAL_DEV(  0x152d, 0x2566, 0x0114, 0x
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_BROKEN_FUA ),
 
+/* Reported-by George Cherian <george.cherian@cavium.com> */
+UNUSUAL_DEV(0x152d, 0x9561, 0x0000, 0x9999,
+		"JMicron",
+		"JMS56x",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_REPORT_OPCODES),
+
 /*
  * Entrega Technologies U1-SC25 (later Xircom PortGear PGSCSI)
  * and Mac USB Dock USB-SCSI */
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/storage/unusual_uas.h linux-libre-4.9.52-gnu/drivers/usb/storage/unusual_uas.h
--- linux-libre-4.9-gnu/drivers/usb/storage/unusual_uas.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/storage/unusual_uas.h	2017-09-27 08:40:05.000000000 -0400
@@ -124,9 +124,9 @@ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x99
 /* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */
 UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999,
 		"Initio Corporation",
-		"",
+		"INIC-3069",
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
-		US_FL_NO_ATA_1X),
+		US_FL_NO_ATA_1X | US_FL_IGNORE_RESIDUE),
 
 /* Reported-by: Tom Arild Naess <tanaess@gmail.com> */
 UNUSUAL_DEV(0x152d, 0x0539, 0x0000, 0x9999,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/usbip/stub_main.c linux-libre-4.9.52-gnu/drivers/usb/usbip/stub_main.c
--- linux-libre-4.9-gnu/drivers/usb/usbip/stub_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/usbip/stub_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -262,7 +262,11 @@ void stub_device_cleanup_urbs(struct stu
 		kmem_cache_free(stub_priv_cache, priv);
 
 		kfree(urb->transfer_buffer);
+		urb->transfer_buffer = NULL;
+
 		kfree(urb->setup_packet);
+		urb->setup_packet = NULL;
+
 		usb_free_urb(urb);
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/usbip/stub_tx.c linux-libre-4.9.52-gnu/drivers/usb/usbip/stub_tx.c
--- linux-libre-4.9-gnu/drivers/usb/usbip/stub_tx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/usbip/stub_tx.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,7 +28,11 @@ static void stub_free_priv_and_urb(struc
 	struct urb *urb = priv->urb;
 
 	kfree(urb->setup_packet);
+	urb->setup_packet = NULL;
+
 	kfree(urb->transfer_buffer);
+	urb->transfer_buffer = NULL;
+
 	list_del(&priv->list);
 	kmem_cache_free(stub_priv_cache, priv);
 	usb_free_urb(urb);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/usbip/vhci_hcd.c linux-libre-4.9.52-gnu/drivers/usb/usbip/vhci_hcd.c
--- linux-libre-4.9-gnu/drivers/usb/usbip/vhci_hcd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/usbip/vhci_hcd.c	2017-09-27 08:40:05.000000000 -0400
@@ -235,14 +235,19 @@ done:
 
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
 {
+	int width;
+
 	memset(desc, 0, sizeof(*desc));
 	desc->bDescriptorType = USB_DT_HUB;
-	desc->bDescLength = 9;
 	desc->wHubCharacteristics = cpu_to_le16(
 		HUB_CHAR_INDV_PORT_LPSM | HUB_CHAR_COMMON_OCPM);
+
 	desc->bNbrPorts = VHCI_HC_PORTS;
-	desc->u.hs.DeviceRemovable[0] = 0xff;
-	desc->u.hs.DeviceRemovable[1] = 0xff;
+	BUILD_BUG_ON(VHCI_HC_PORTS > USB_MAXCHILDREN);
+	width = desc->bNbrPorts / 8 + 1;
+	desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * width;
+	memset(&desc->u.hs.DeviceRemovable[0], 0, width);
+	memset(&desc->u.hs.DeviceRemovable[width], 0xff, width);
 }
 
 static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/usbip/vudc_transfer.c linux-libre-4.9.52-gnu/drivers/usb/usbip/vudc_transfer.c
--- linux-libre-4.9-gnu/drivers/usb/usbip/vudc_transfer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/usbip/vudc_transfer.c	2017-09-27 08:40:05.000000000 -0400
@@ -339,6 +339,8 @@ static void v_timer(unsigned long _vudc)
 		total = timer->frame_limit;
 	}
 
+	/* We have to clear ep0 flags separately as it's not on the list */
+	udc->ep[0].already_seen = 0;
 	list_for_each_entry(_ep, &udc->gadget.ep_list, ep_list) {
 		ep = to_vep(_ep);
 		ep->already_seen = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/wusbcore/crypto.c linux-libre-4.9.52-gnu/drivers/usb/wusbcore/crypto.c
--- linux-libre-4.9-gnu/drivers/usb/wusbcore/crypto.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/wusbcore/crypto.c	2017-09-27 08:40:05.000000000 -0400
@@ -216,7 +216,6 @@ static int wusb_ccm_mac(struct crypto_sk
 	struct scatterlist sg[4], sg_dst;
 	void *dst_buf;
 	size_t dst_size;
-	const u8 bzero[16] = { 0 };
 	u8 iv[crypto_skcipher_ivsize(tfm_cbc)];
 	size_t zero_padding;
 
@@ -261,7 +260,7 @@ static int wusb_ccm_mac(struct crypto_sk
 	sg_set_buf(&sg[1], &scratch->b1, sizeof(scratch->b1));
 	sg_set_buf(&sg[2], b, blen);
 	/* 0 if well behaved :) */
-	sg_set_buf(&sg[3], bzero, zero_padding);
+	sg_set_page(&sg[3], ZERO_PAGE(0), zero_padding, 0);
 	sg_init_one(&sg_dst, dst_buf, dst_size);
 
 	skcipher_request_set_tfm(req, tfm_cbc);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/usb/wusbcore/wa-hc.c linux-libre-4.9.52-gnu/drivers/usb/wusbcore/wa-hc.c
--- linux-libre-4.9-gnu/drivers/usb/wusbcore/wa-hc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/usb/wusbcore/wa-hc.c	2017-09-27 08:40:05.000000000 -0400
@@ -39,6 +39,9 @@ int wa_create(struct wahc *wa, struct us
 	int result;
 	struct device *dev = &iface->dev;
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 3)
+		return -ENODEV;
+
 	result = wa_rpipes_create(wa);
 	if (result < 0)
 		goto error_rpipes_create;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/uwb/hwa-rc.c linux-libre-4.9.52-gnu/drivers/uwb/hwa-rc.c
--- linux-libre-4.9-gnu/drivers/uwb/hwa-rc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/uwb/hwa-rc.c	2017-09-27 08:40:05.000000000 -0400
@@ -823,6 +823,9 @@ static int hwarc_probe(struct usb_interf
 	struct hwarc *hwarc;
 	struct device *dev = &iface->dev;
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	result = -ENOMEM;
 	uwb_rc = uwb_rc_alloc();
 	if (uwb_rc == NULL) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/uwb/i1480/dfu/usb.c linux-libre-4.9.52-gnu/drivers/uwb/i1480/dfu/usb.c
--- linux-libre-4.9-gnu/drivers/uwb/i1480/dfu/usb.c	2016-12-11 18:00:42.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/uwb/i1480/dfu/usb.c	2017-09-27 15:16:41.000000000 -0400
@@ -341,6 +341,7 @@ error_submit_ep1:
 static
 int i1480_usb_probe(struct usb_interface *iface, const struct usb_device_id *id)
 {
+	struct usb_device *udev = interface_to_usbdev(iface);
 	struct i1480_usb *i1480_usb;
 	struct i1480 *i1480;
 	struct device *dev = &iface->dev;
@@ -352,8 +353,8 @@ int i1480_usb_probe(struct usb_interface
 			iface->cur_altsetting->desc.bInterfaceNumber);
 		goto error;
 	}
-	if (iface->num_altsetting > 1
-	    && interface_to_usbdev(iface)->descriptor.idProduct == 0xbabe) {
+	if (iface->num_altsetting > 1 &&
+			le16_to_cpu(udev->descriptor.idProduct) == 0xbabe) {
 		/* Need altsetting #1 [HW QUIRK] or EP1 won't work */
 		result = usb_set_interface(interface_to_usbdev(iface), 0, 1);
 		if (result < 0)
@@ -362,6 +363,9 @@ int i1480_usb_probe(struct usb_interface
 				 result);
 	}
 
+	if (iface->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	result = -ENOMEM;
 	i1480_usb = kzalloc(sizeof(*i1480_usb), GFP_KERNEL);
 	if (i1480_usb == NULL) {
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vfio/pci/vfio_pci.c linux-libre-4.9.52-gnu/drivers/vfio/pci/vfio_pci.c
--- linux-libre-4.9-gnu/drivers/vfio/pci/vfio_pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vfio/pci/vfio_pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -1173,6 +1173,10 @@ static int vfio_pci_mmap(void *device_da
 			return ret;
 
 		vdev->barmap[index] = pci_iomap(pdev, index, 0);
+		if (!vdev->barmap[index]) {
+			pci_release_selected_regions(pdev, 1 << index);
+			return -ENOMEM;
+		}
 	}
 
 	vma->vm_private_data = vdev;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vfio/pci/vfio_pci_rdwr.c linux-libre-4.9.52-gnu/drivers/vfio/pci/vfio_pci_rdwr.c
--- linux-libre-4.9-gnu/drivers/vfio/pci/vfio_pci_rdwr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vfio/pci/vfio_pci_rdwr.c	2017-09-27 08:40:05.000000000 -0400
@@ -193,7 +193,10 @@ ssize_t vfio_pci_vga_rw(struct vfio_pci_
 	if (!vdev->has_vga)
 		return -EINVAL;
 
-	switch (pos) {
+	if (pos > 0xbfffful)
+		return -EINVAL;
+
+	switch ((u32)pos) {
 	case 0xa0000 ... 0xbffff:
 		count = min(count, (size_t)(0xc0000 - pos));
 		iomem = ioremap_nocache(0xa0000, 0xbffff - 0xa0000 + 1);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vfio/vfio.c linux-libre-4.9.52-gnu/drivers/vfio/vfio.c
--- linux-libre-4.9-gnu/drivers/vfio/vfio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vfio/vfio.c	2017-09-27 08:40:05.000000000 -0400
@@ -419,6 +419,34 @@ static void vfio_group_put(struct vfio_g
 	kref_put_mutex(&group->kref, vfio_group_release, &vfio.group_lock);
 }
 
+struct vfio_group_put_work {
+	struct work_struct work;
+	struct vfio_group *group;
+};
+
+static void vfio_group_put_bg(struct work_struct *work)
+{
+	struct vfio_group_put_work *do_work;
+
+	do_work = container_of(work, struct vfio_group_put_work, work);
+
+	vfio_group_put(do_work->group);
+	kfree(do_work);
+}
+
+static void vfio_group_schedule_put(struct vfio_group *group)
+{
+	struct vfio_group_put_work *do_work;
+
+	do_work = kmalloc(sizeof(*do_work), GFP_KERNEL);
+	if (WARN_ON(!do_work))
+		return;
+
+	INIT_WORK(&do_work->work, vfio_group_put_bg);
+	do_work->group = group;
+	schedule_work(&do_work->work);
+}
+
 /* Assume group_lock or group reference is held */
 static void vfio_group_get(struct vfio_group *group)
 {
@@ -743,7 +771,14 @@ static int vfio_iommu_group_notifier(str
 		break;
 	}
 
-	vfio_group_put(group);
+	/*
+	 * If we're the last reference to the group, the group will be
+	 * released, which includes unregistering the iommu group notifier.
+	 * We hold a read-lock on that notifier list, unregistering needs
+	 * a write-lock... deadlock.  Release our reference asynchronously
+	 * to avoid that situation.
+	 */
+	vfio_group_schedule_put(group);
 	return NOTIFY_OK;
 }
 
@@ -1716,6 +1751,15 @@ void vfio_group_put_external_user(struct
 }
 EXPORT_SYMBOL_GPL(vfio_group_put_external_user);
 
+bool vfio_external_group_match_file(struct vfio_group *test_group,
+				    struct file *filep)
+{
+	struct vfio_group *group = filep->private_data;
+
+	return (filep->f_op == &vfio_group_fops) && (group == test_group);
+}
+EXPORT_SYMBOL_GPL(vfio_external_group_match_file);
+
 int vfio_external_user_iommu_id(struct vfio_group *group)
 {
 	return iommu_group_id(group->iommu_group);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vfio/vfio_iommu_spapr_tce.c linux-libre-4.9.52-gnu/drivers/vfio/vfio_iommu_spapr_tce.c
--- linux-libre-4.9-gnu/drivers/vfio/vfio_iommu_spapr_tce.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vfio/vfio_iommu_spapr_tce.c	2017-09-27 08:40:05.000000000 -0400
@@ -31,49 +31,49 @@
 static void tce_iommu_detach_group(void *iommu_data,
 		struct iommu_group *iommu_group);
 
-static long try_increment_locked_vm(long npages)
+static long try_increment_locked_vm(struct mm_struct *mm, long npages)
 {
 	long ret = 0, locked, lock_limit;
 
-	if (!current || !current->mm)
-		return -ESRCH; /* process exited */
+	if (WARN_ON_ONCE(!mm))
+		return -EPERM;
 
 	if (!npages)
 		return 0;
 
-	down_write(&current->mm->mmap_sem);
-	locked = current->mm->locked_vm + npages;
+	down_write(&mm->mmap_sem);
+	locked = mm->locked_vm + npages;
 	lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
 	if (locked > lock_limit && !capable(CAP_IPC_LOCK))
 		ret = -ENOMEM;
 	else
-		current->mm->locked_vm += npages;
+		mm->locked_vm += npages;
 
 	pr_debug("[%d] RLIMIT_MEMLOCK +%ld %ld/%ld%s\n", current->pid,
 			npages << PAGE_SHIFT,
-			current->mm->locked_vm << PAGE_SHIFT,
+			mm->locked_vm << PAGE_SHIFT,
 			rlimit(RLIMIT_MEMLOCK),
 			ret ? " - exceeded" : "");
 
-	up_write(&current->mm->mmap_sem);
+	up_write(&mm->mmap_sem);
 
 	return ret;
 }
 
-static void decrement_locked_vm(long npages)
+static void decrement_locked_vm(struct mm_struct *mm, long npages)
 {
-	if (!current || !current->mm || !npages)
-		return; /* process exited */
+	if (!mm || !npages)
+		return;
 
-	down_write(&current->mm->mmap_sem);
-	if (WARN_ON_ONCE(npages > current->mm->locked_vm))
-		npages = current->mm->locked_vm;
-	current->mm->locked_vm -= npages;
+	down_write(&mm->mmap_sem);
+	if (WARN_ON_ONCE(npages > mm->locked_vm))
+		npages = mm->locked_vm;
+	mm->locked_vm -= npages;
 	pr_debug("[%d] RLIMIT_MEMLOCK -%ld %ld/%ld\n", current->pid,
 			npages << PAGE_SHIFT,
-			current->mm->locked_vm << PAGE_SHIFT,
+			mm->locked_vm << PAGE_SHIFT,
 			rlimit(RLIMIT_MEMLOCK));
-	up_write(&current->mm->mmap_sem);
+	up_write(&mm->mmap_sem);
 }
 
 /*
@@ -89,6 +89,15 @@ struct tce_iommu_group {
 };
 
 /*
+ * A container needs to remember which preregistered region  it has
+ * referenced to do proper cleanup at the userspace process exit.
+ */
+struct tce_iommu_prereg {
+	struct list_head next;
+	struct mm_iommu_table_group_mem_t *mem;
+};
+
+/*
  * The container descriptor supports only a single group per container.
  * Required by the API as the container is not supplied with the IOMMU group
  * at the moment of initialization.
@@ -97,24 +106,68 @@ struct tce_container {
 	struct mutex lock;
 	bool enabled;
 	bool v2;
+	bool def_window_pending;
 	unsigned long locked_pages;
+	struct mm_struct *mm;
 	struct iommu_table *tables[IOMMU_TABLE_GROUP_MAX_TABLES];
 	struct list_head group_list;
+	struct list_head prereg_list;
 };
 
+static long tce_iommu_mm_set(struct tce_container *container)
+{
+	if (container->mm) {
+		if (container->mm == current->mm)
+			return 0;
+		return -EPERM;
+	}
+	BUG_ON(!current->mm);
+	container->mm = current->mm;
+	atomic_inc(&container->mm->mm_count);
+
+	return 0;
+}
+
+static long tce_iommu_prereg_free(struct tce_container *container,
+		struct tce_iommu_prereg *tcemem)
+{
+	long ret;
+
+	ret = mm_iommu_put(container->mm, tcemem->mem);
+	if (ret)
+		return ret;
+
+	list_del(&tcemem->next);
+	kfree(tcemem);
+
+	return 0;
+}
+
 static long tce_iommu_unregister_pages(struct tce_container *container,
 		__u64 vaddr, __u64 size)
 {
 	struct mm_iommu_table_group_mem_t *mem;
+	struct tce_iommu_prereg *tcemem;
+	bool found = false;
 
 	if ((vaddr & ~PAGE_MASK) || (size & ~PAGE_MASK))
 		return -EINVAL;
 
-	mem = mm_iommu_find(vaddr, size >> PAGE_SHIFT);
+	mem = mm_iommu_find(container->mm, vaddr, size >> PAGE_SHIFT);
 	if (!mem)
 		return -ENOENT;
 
-	return mm_iommu_put(mem);
+	list_for_each_entry(tcemem, &container->prereg_list, next) {
+		if (tcemem->mem == mem) {
+			found = true;
+			break;
+		}
+	}
+
+	if (!found)
+		return -ENOENT;
+
+	return tce_iommu_prereg_free(container, tcemem);
 }
 
 static long tce_iommu_register_pages(struct tce_container *container,
@@ -122,22 +175,36 @@ static long tce_iommu_register_pages(str
 {
 	long ret = 0;
 	struct mm_iommu_table_group_mem_t *mem = NULL;
+	struct tce_iommu_prereg *tcemem;
 	unsigned long entries = size >> PAGE_SHIFT;
 
 	if ((vaddr & ~PAGE_MASK) || (size & ~PAGE_MASK) ||
 			((vaddr + size) < vaddr))
 		return -EINVAL;
 
-	ret = mm_iommu_get(vaddr, entries, &mem);
+	mem = mm_iommu_find(container->mm, vaddr, entries);
+	if (mem) {
+		list_for_each_entry(tcemem, &container->prereg_list, next) {
+			if (tcemem->mem == mem)
+				return -EBUSY;
+		}
+	}
+
+	ret = mm_iommu_get(container->mm, vaddr, entries, &mem);
 	if (ret)
 		return ret;
 
+	tcemem = kzalloc(sizeof(*tcemem), GFP_KERNEL);
+	tcemem->mem = mem;
+	list_add(&tcemem->next, &container->prereg_list);
+
 	container->enabled = true;
 
 	return 0;
 }
 
-static long tce_iommu_userspace_view_alloc(struct iommu_table *tbl)
+static long tce_iommu_userspace_view_alloc(struct iommu_table *tbl,
+		struct mm_struct *mm)
 {
 	unsigned long cb = _ALIGN_UP(sizeof(tbl->it_userspace[0]) *
 			tbl->it_size, PAGE_SIZE);
@@ -146,13 +213,13 @@ static long tce_iommu_userspace_view_all
 
 	BUG_ON(tbl->it_userspace);
 
-	ret = try_increment_locked_vm(cb >> PAGE_SHIFT);
+	ret = try_increment_locked_vm(mm, cb >> PAGE_SHIFT);
 	if (ret)
 		return ret;
 
 	uas = vzalloc(cb);
 	if (!uas) {
-		decrement_locked_vm(cb >> PAGE_SHIFT);
+		decrement_locked_vm(mm, cb >> PAGE_SHIFT);
 		return -ENOMEM;
 	}
 	tbl->it_userspace = uas;
@@ -160,7 +227,8 @@ static long tce_iommu_userspace_view_all
 	return 0;
 }
 
-static void tce_iommu_userspace_view_free(struct iommu_table *tbl)
+static void tce_iommu_userspace_view_free(struct iommu_table *tbl,
+		struct mm_struct *mm)
 {
 	unsigned long cb = _ALIGN_UP(sizeof(tbl->it_userspace[0]) *
 			tbl->it_size, PAGE_SIZE);
@@ -170,7 +238,7 @@ static void tce_iommu_userspace_view_fre
 
 	vfree(tbl->it_userspace);
 	tbl->it_userspace = NULL;
-	decrement_locked_vm(cb >> PAGE_SHIFT);
+	decrement_locked_vm(mm, cb >> PAGE_SHIFT);
 }
 
 static bool tce_page_is_contained(struct page *page, unsigned page_shift)
@@ -230,9 +298,6 @@ static int tce_iommu_enable(struct tce_c
 	struct iommu_table_group *table_group;
 	struct tce_iommu_group *tcegrp;
 
-	if (!current->mm)
-		return -ESRCH; /* process exited */
-
 	if (container->enabled)
 		return -EBUSY;
 
@@ -277,8 +342,12 @@ static int tce_iommu_enable(struct tce_c
 	if (!table_group->tce32_size)
 		return -EPERM;
 
+	ret = tce_iommu_mm_set(container);
+	if (ret)
+		return ret;
+
 	locked = table_group->tce32_size >> PAGE_SHIFT;
-	ret = try_increment_locked_vm(locked);
+	ret = try_increment_locked_vm(container->mm, locked);
 	if (ret)
 		return ret;
 
@@ -296,10 +365,8 @@ static void tce_iommu_disable(struct tce
 
 	container->enabled = false;
 
-	if (!current->mm)
-		return;
-
-	decrement_locked_vm(container->locked_pages);
+	BUG_ON(!container->mm);
+	decrement_locked_vm(container->mm, container->locked_pages);
 }
 
 static void *tce_iommu_open(unsigned long arg)
@@ -317,6 +384,7 @@ static void *tce_iommu_open(unsigned lon
 
 	mutex_init(&container->lock);
 	INIT_LIST_HEAD_RCU(&container->group_list);
+	INIT_LIST_HEAD_RCU(&container->prereg_list);
 
 	container->v2 = arg == VFIO_SPAPR_TCE_v2_IOMMU;
 
@@ -326,7 +394,8 @@ static void *tce_iommu_open(unsigned lon
 static int tce_iommu_clear(struct tce_container *container,
 		struct iommu_table *tbl,
 		unsigned long entry, unsigned long pages);
-static void tce_iommu_free_table(struct iommu_table *tbl);
+static void tce_iommu_free_table(struct tce_container *container,
+		struct iommu_table *tbl);
 
 static void tce_iommu_release(void *iommu_data)
 {
@@ -351,10 +420,20 @@ static void tce_iommu_release(void *iomm
 			continue;
 
 		tce_iommu_clear(container, tbl, tbl->it_offset, tbl->it_size);
-		tce_iommu_free_table(tbl);
+		tce_iommu_free_table(container, tbl);
+	}
+
+	while (!list_empty(&container->prereg_list)) {
+		struct tce_iommu_prereg *tcemem;
+
+		tcemem = list_first_entry(&container->prereg_list,
+				struct tce_iommu_prereg, next);
+		WARN_ON_ONCE(tce_iommu_prereg_free(container, tcemem));
 	}
 
 	tce_iommu_disable(container);
+	if (container->mm)
+		mmdrop(container->mm);
 	mutex_destroy(&container->lock);
 
 	kfree(container);
@@ -369,13 +448,14 @@ static void tce_iommu_unuse_page(struct
 	put_page(page);
 }
 
-static int tce_iommu_prereg_ua_to_hpa(unsigned long tce, unsigned long size,
+static int tce_iommu_prereg_ua_to_hpa(struct tce_container *container,
+		unsigned long tce, unsigned long size,
 		unsigned long *phpa, struct mm_iommu_table_group_mem_t **pmem)
 {
 	long ret = 0;
 	struct mm_iommu_table_group_mem_t *mem;
 
-	mem = mm_iommu_lookup(tce, size);
+	mem = mm_iommu_lookup(container->mm, tce, size);
 	if (!mem)
 		return -EINVAL;
 
@@ -388,18 +468,18 @@ static int tce_iommu_prereg_ua_to_hpa(un
 	return 0;
 }
 
-static void tce_iommu_unuse_page_v2(struct iommu_table *tbl,
-		unsigned long entry)
+static void tce_iommu_unuse_page_v2(struct tce_container *container,
+		struct iommu_table *tbl, unsigned long entry)
 {
 	struct mm_iommu_table_group_mem_t *mem = NULL;
 	int ret;
 	unsigned long hpa = 0;
 	unsigned long *pua = IOMMU_TABLE_USERSPACE_ENTRY(tbl, entry);
 
-	if (!pua || !current || !current->mm)
+	if (!pua)
 		return;
 
-	ret = tce_iommu_prereg_ua_to_hpa(*pua, IOMMU_PAGE_SIZE(tbl),
+	ret = tce_iommu_prereg_ua_to_hpa(container, *pua, IOMMU_PAGE_SIZE(tbl),
 			&hpa, &mem);
 	if (ret)
 		pr_debug("%s: tce %lx at #%lx was not cached, ret=%d\n",
@@ -429,7 +509,7 @@ static int tce_iommu_clear(struct tce_co
 			continue;
 
 		if (container->v2) {
-			tce_iommu_unuse_page_v2(tbl, entry);
+			tce_iommu_unuse_page_v2(container, tbl, entry);
 			continue;
 		}
 
@@ -509,13 +589,19 @@ static long tce_iommu_build_v2(struct tc
 	unsigned long hpa;
 	enum dma_data_direction dirtmp;
 
+	if (!tbl->it_userspace) {
+		ret = tce_iommu_userspace_view_alloc(tbl, container->mm);
+		if (ret)
+			return ret;
+	}
+
 	for (i = 0; i < pages; ++i) {
 		struct mm_iommu_table_group_mem_t *mem = NULL;
 		unsigned long *pua = IOMMU_TABLE_USERSPACE_ENTRY(tbl,
 				entry + i);
 
-		ret = tce_iommu_prereg_ua_to_hpa(tce, IOMMU_PAGE_SIZE(tbl),
-				&hpa, &mem);
+		ret = tce_iommu_prereg_ua_to_hpa(container,
+				tce, IOMMU_PAGE_SIZE(tbl), &hpa, &mem);
 		if (ret)
 			break;
 
@@ -536,7 +622,7 @@ static long tce_iommu_build_v2(struct tc
 		ret = iommu_tce_xchg(tbl, entry + i, &hpa, &dirtmp);
 		if (ret) {
 			/* dirtmp cannot be DMA_NONE here */
-			tce_iommu_unuse_page_v2(tbl, entry + i);
+			tce_iommu_unuse_page_v2(container, tbl, entry + i);
 			pr_err("iommu_tce: %s failed ioba=%lx, tce=%lx, ret=%ld\n",
 					__func__, entry << tbl->it_page_shift,
 					tce, ret);
@@ -544,7 +630,7 @@ static long tce_iommu_build_v2(struct tc
 		}
 
 		if (dirtmp != DMA_NONE)
-			tce_iommu_unuse_page_v2(tbl, entry + i);
+			tce_iommu_unuse_page_v2(container, tbl, entry + i);
 
 		*pua = tce;
 
@@ -572,7 +658,7 @@ static long tce_iommu_create_table(struc
 	if (!table_size)
 		return -EINVAL;
 
-	ret = try_increment_locked_vm(table_size >> PAGE_SHIFT);
+	ret = try_increment_locked_vm(container->mm, table_size >> PAGE_SHIFT);
 	if (ret)
 		return ret;
 
@@ -582,25 +668,17 @@ static long tce_iommu_create_table(struc
 	WARN_ON(!ret && !(*ptbl)->it_ops->free);
 	WARN_ON(!ret && ((*ptbl)->it_allocated_size != table_size));
 
-	if (!ret && container->v2) {
-		ret = tce_iommu_userspace_view_alloc(*ptbl);
-		if (ret)
-			(*ptbl)->it_ops->free(*ptbl);
-	}
-
-	if (ret)
-		decrement_locked_vm(table_size >> PAGE_SHIFT);
-
 	return ret;
 }
 
-static void tce_iommu_free_table(struct iommu_table *tbl)
+static void tce_iommu_free_table(struct tce_container *container,
+		struct iommu_table *tbl)
 {
 	unsigned long pages = tbl->it_allocated_size >> PAGE_SHIFT;
 
-	tce_iommu_userspace_view_free(tbl);
+	tce_iommu_userspace_view_free(tbl, container->mm);
 	tbl->it_ops->free(tbl);
-	decrement_locked_vm(pages);
+	decrement_locked_vm(container->mm, pages);
 }
 
 static long tce_iommu_create_window(struct tce_container *container,
@@ -663,7 +741,7 @@ unset_exit:
 		table_group = iommu_group_get_iommudata(tcegrp->grp);
 		table_group->ops->unset_window(table_group, num);
 	}
-	tce_iommu_free_table(tbl);
+	tce_iommu_free_table(container, tbl);
 
 	return ret;
 }
@@ -701,12 +779,41 @@ static long tce_iommu_remove_window(stru
 
 	/* Free table */
 	tce_iommu_clear(container, tbl, tbl->it_offset, tbl->it_size);
-	tce_iommu_free_table(tbl);
+	tce_iommu_free_table(container, tbl);
 	container->tables[num] = NULL;
 
 	return 0;
 }
 
+static long tce_iommu_create_default_window(struct tce_container *container)
+{
+	long ret;
+	__u64 start_addr = 0;
+	struct tce_iommu_group *tcegrp;
+	struct iommu_table_group *table_group;
+
+	if (!container->def_window_pending)
+		return 0;
+
+	if (!tce_groups_attached(container))
+		return -ENODEV;
+
+	tcegrp = list_first_entry(&container->group_list,
+			struct tce_iommu_group, next);
+	table_group = iommu_group_get_iommudata(tcegrp->grp);
+	if (!table_group)
+		return -ENODEV;
+
+	ret = tce_iommu_create_window(container, IOMMU_PAGE_SHIFT_4K,
+			table_group->tce32_size, 1, &start_addr);
+	WARN_ON_ONCE(!ret && start_addr);
+
+	if (!ret)
+		container->def_window_pending = false;
+
+	return ret;
+}
+
 static long tce_iommu_ioctl(void *iommu_data,
 				 unsigned int cmd, unsigned long arg)
 {
@@ -727,7 +834,17 @@ static long tce_iommu_ioctl(void *iommu_
 		}
 
 		return (ret < 0) ? 0 : ret;
+	}
+
+	/*
+	 * Sanity check to prevent one userspace from manipulating
+	 * another userspace mm.
+	 */
+	BUG_ON(!container);
+	if (container->mm && container->mm != current->mm)
+		return -EPERM;
 
+	switch (cmd) {
 	case VFIO_IOMMU_SPAPR_TCE_GET_INFO: {
 		struct vfio_iommu_spapr_tce_info info;
 		struct tce_iommu_group *tcegrp;
@@ -797,6 +914,10 @@ static long tce_iommu_ioctl(void *iommu_
 				VFIO_DMA_MAP_FLAG_WRITE))
 			return -EINVAL;
 
+		ret = tce_iommu_create_default_window(container);
+		if (ret)
+			return ret;
+
 		num = tce_iommu_find_table(container, param.iova, &tbl);
 		if (num < 0)
 			return -ENXIO;
@@ -860,6 +981,10 @@ static long tce_iommu_ioctl(void *iommu_
 		if (param.flags)
 			return -EINVAL;
 
+		ret = tce_iommu_create_default_window(container);
+		if (ret)
+			return ret;
+
 		num = tce_iommu_find_table(container, param.iova, &tbl);
 		if (num < 0)
 			return -ENXIO;
@@ -888,6 +1013,10 @@ static long tce_iommu_ioctl(void *iommu_
 		minsz = offsetofend(struct vfio_iommu_spapr_register_memory,
 				size);
 
+		ret = tce_iommu_mm_set(container);
+		if (ret)
+			return ret;
+
 		if (copy_from_user(&param, (void __user *)arg, minsz))
 			return -EFAULT;
 
@@ -911,6 +1040,9 @@ static long tce_iommu_ioctl(void *iommu_
 		if (!container->v2)
 			break;
 
+		if (!container->mm)
+			return -EPERM;
+
 		minsz = offsetofend(struct vfio_iommu_spapr_register_memory,
 				size);
 
@@ -969,6 +1101,10 @@ static long tce_iommu_ioctl(void *iommu_
 		if (!container->v2)
 			break;
 
+		ret = tce_iommu_mm_set(container);
+		if (ret)
+			return ret;
+
 		if (!tce_groups_attached(container))
 			return -ENXIO;
 
@@ -986,6 +1122,10 @@ static long tce_iommu_ioctl(void *iommu_
 
 		mutex_lock(&container->lock);
 
+		ret = tce_iommu_create_default_window(container);
+		if (ret)
+			return ret;
+
 		ret = tce_iommu_create_window(container, create.page_shift,
 				create.window_size, create.levels,
 				&create.start_addr);
@@ -1003,6 +1143,10 @@ static long tce_iommu_ioctl(void *iommu_
 		if (!container->v2)
 			break;
 
+		ret = tce_iommu_mm_set(container);
+		if (ret)
+			return ret;
+
 		if (!tce_groups_attached(container))
 			return -ENXIO;
 
@@ -1018,6 +1162,11 @@ static long tce_iommu_ioctl(void *iommu_
 		if (remove.flags)
 			return -EINVAL;
 
+		if (container->def_window_pending && !remove.start_addr) {
+			container->def_window_pending = false;
+			return 0;
+		}
+
 		mutex_lock(&container->lock);
 
 		ret = tce_iommu_remove_window(container, remove.start_addr);
@@ -1043,7 +1192,7 @@ static void tce_iommu_release_ownership(
 			continue;
 
 		tce_iommu_clear(container, tbl, tbl->it_offset, tbl->it_size);
-		tce_iommu_userspace_view_free(tbl);
+		tce_iommu_userspace_view_free(tbl, container->mm);
 		if (tbl->it_map)
 			iommu_release_ownership(tbl);
 
@@ -1062,10 +1211,7 @@ static int tce_iommu_take_ownership(stru
 		if (!tbl || !tbl->it_map)
 			continue;
 
-		rc = tce_iommu_userspace_view_alloc(tbl);
-		if (!rc)
-			rc = iommu_take_ownership(tbl);
-
+		rc = iommu_take_ownership(tbl);
 		if (rc) {
 			for (j = 0; j < i; ++j)
 				iommu_release_ownership(
@@ -1101,7 +1247,6 @@ static long tce_iommu_take_ownership_ddw
 		struct iommu_table_group *table_group)
 {
 	long i, ret = 0;
-	struct iommu_table *tbl = NULL;
 
 	if (!table_group->ops->create_table || !table_group->ops->set_window ||
 			!table_group->ops->release_ownership) {
@@ -1111,33 +1256,13 @@ static long tce_iommu_take_ownership_ddw
 
 	table_group->ops->take_ownership(table_group);
 
-	/*
-	 * If it the first group attached, check if there is
-	 * a default DMA window and create one if none as
-	 * the userspace expects it to exist.
-	 */
-	if (!tce_groups_attached(container) && !container->tables[0]) {
-		ret = tce_iommu_create_table(container,
-				table_group,
-				0, /* window number */
-				IOMMU_PAGE_SHIFT_4K,
-				table_group->tce32_size,
-				1, /* default levels */
-				&tbl);
-		if (ret)
-			goto release_exit;
-		else
-			container->tables[0] = tbl;
-	}
-
 	/* Set all windows to the new group */
 	for (i = 0; i < IOMMU_TABLE_GROUP_MAX_TABLES; ++i) {
-		tbl = container->tables[i];
+		struct iommu_table *tbl = container->tables[i];
 
 		if (!tbl)
 			continue;
 
-		/* Set the default window to a new group */
 		ret = table_group->ops->set_window(table_group, i, tbl);
 		if (ret)
 			goto release_exit;
@@ -1167,6 +1292,10 @@ static int tce_iommu_attach_group(void *
 	/* pr_debug("tce_vfio: Attaching group #%u to iommu %p\n",
 			iommu_group_id(iommu_group), iommu_group); */
 	table_group = iommu_group_get_iommudata(iommu_group);
+	if (!table_group) {
+		ret = -ENODEV;
+		goto unlock_exit;
+	}
 
 	if (tce_groups_attached(container) && (!table_group->ops ||
 			!table_group->ops->take_ownership ||
@@ -1203,10 +1332,13 @@ static int tce_iommu_attach_group(void *
 	}
 
 	if (!table_group->ops || !table_group->ops->take_ownership ||
-			!table_group->ops->release_ownership)
+			!table_group->ops->release_ownership) {
 		ret = tce_iommu_take_ownership(container, table_group);
-	else
+	} else {
 		ret = tce_iommu_take_ownership_ddw(container, table_group);
+		if (!tce_groups_attached(container) && !container->tables[0])
+			container->def_window_pending = true;
+	}
 
 	if (!ret) {
 		tcegrp->grp = iommu_group;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vfio/vfio_iommu_type1.c linux-libre-4.9.52-gnu/drivers/vfio/vfio_iommu_type1.c
--- linux-libre-4.9-gnu/drivers/vfio/vfio_iommu_type1.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vfio/vfio_iommu_type1.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,57 +130,36 @@ static void vfio_unlink_dma(struct vfio_
 	rb_erase(&old->node, &iommu->dma_list);
 }
 
-struct vwork {
-	struct mm_struct	*mm;
-	long			npage;
-	struct work_struct	work;
-};
-
-/* delayed decrement/increment for locked_vm */
-static void vfio_lock_acct_bg(struct work_struct *work)
+static int vfio_lock_acct(long npage, bool *lock_cap)
 {
-	struct vwork *vwork = container_of(work, struct vwork, work);
-	struct mm_struct *mm;
+	int ret;
 
-	mm = vwork->mm;
-	down_write(&mm->mmap_sem);
-	mm->locked_vm += vwork->npage;
-	up_write(&mm->mmap_sem);
-	mmput(mm);
-	kfree(vwork);
-}
+	if (!npage)
+		return 0;
 
-static void vfio_lock_acct(long npage)
-{
-	struct vwork *vwork;
-	struct mm_struct *mm;
+	if (!current->mm)
+		return -ESRCH; /* process exited */
 
-	if (!current->mm || !npage)
-		return; /* process exited or nothing to do */
+	ret = down_write_killable(&current->mm->mmap_sem);
+	if (!ret) {
+		if (npage > 0) {
+			if (lock_cap ? !*lock_cap : !capable(CAP_IPC_LOCK)) {
+				unsigned long limit;
+
+				limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
+
+				if (current->mm->locked_vm + npage > limit)
+					ret = -ENOMEM;
+			}
+		}
+
+		if (!ret)
+			current->mm->locked_vm += npage;
 
-	if (down_write_trylock(&current->mm->mmap_sem)) {
-		current->mm->locked_vm += npage;
 		up_write(&current->mm->mmap_sem);
-		return;
 	}
 
-	/*
-	 * Couldn't get mmap_sem lock, so must setup to update
-	 * mm->locked_vm later. If locked_vm were atomic, we
-	 * wouldn't need this silliness
-	 */
-	vwork = kmalloc(sizeof(struct vwork), GFP_KERNEL);
-	if (!vwork)
-		return;
-	mm = get_task_mm(current);
-	if (!mm) {
-		kfree(vwork);
-		return;
-	}
-	INIT_WORK(&vwork->work, vfio_lock_acct_bg);
-	vwork->mm = mm;
-	vwork->npage = npage;
-	schedule_work(&vwork->work);
+	return ret;
 }
 
 /*
@@ -262,9 +241,9 @@ static int vaddr_get_pfn(unsigned long v
 static long vfio_pin_pages(unsigned long vaddr, long npage,
 			   int prot, unsigned long *pfn_base)
 {
-	unsigned long limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
+	unsigned long pfn = 0, limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
 	bool lock_cap = capable(CAP_IPC_LOCK);
-	long ret, i;
+	long ret, i = 1;
 	bool rsvd;
 
 	if (!current->mm)
@@ -283,16 +262,11 @@ static long vfio_pin_pages(unsigned long
 		return -ENOMEM;
 	}
 
-	if (unlikely(disable_hugepages)) {
-		if (!rsvd)
-			vfio_lock_acct(1);
-		return 1;
-	}
+	if (unlikely(disable_hugepages))
+		goto out;
 
 	/* Lock all the consecutive pages from pfn_base */
-	for (i = 1, vaddr += PAGE_SIZE; i < npage; i++, vaddr += PAGE_SIZE) {
-		unsigned long pfn = 0;
-
+	for (vaddr += PAGE_SIZE; i < npage; i++, vaddr += PAGE_SIZE) {
 		ret = vaddr_get_pfn(vaddr, prot, &pfn);
 		if (ret)
 			break;
@@ -308,12 +282,24 @@ static long vfio_pin_pages(unsigned long
 			put_pfn(pfn, prot);
 			pr_warn("%s: RLIMIT_MEMLOCK (%ld) exceeded\n",
 				__func__, limit << PAGE_SHIFT);
-			break;
+			ret = -ENOMEM;
+			goto unpin_out;
 		}
 	}
 
+out:
 	if (!rsvd)
-		vfio_lock_acct(i);
+		ret = vfio_lock_acct(i, &lock_cap);
+
+unpin_out:
+	if (ret) {
+		if (!rsvd) {
+			for (pfn = *pfn_base ; i ; pfn++, i--)
+				put_pfn(pfn, prot);
+		}
+
+		return ret;
+	}
 
 	return i;
 }
@@ -328,7 +314,7 @@ static long vfio_unpin_pages(unsigned lo
 		unlocked += put_pfn(pfn++, prot);
 
 	if (do_accounting)
-		vfio_lock_acct(-unlocked);
+		vfio_lock_acct(-unlocked, NULL);
 
 	return unlocked;
 }
@@ -390,7 +376,7 @@ static void vfio_unmap_unpin(struct vfio
 		cond_resched();
 	}
 
-	vfio_lock_acct(-unlocked);
+	vfio_lock_acct(-unlocked, NULL);
 }
 
 static void vfio_remove_dma(struct vfio_iommu *iommu, struct vfio_dma *dma)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vhost/net.c linux-libre-4.9.52-gnu/drivers/vhost/net.c
--- linux-libre-4.9-gnu/drivers/vhost/net.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vhost/net.c	2017-09-27 08:40:05.000000000 -0400
@@ -537,8 +537,13 @@ static int vhost_net_rx_peek_head_len(st
 
 		preempt_enable();
 
-		if (vhost_enable_notify(&net->dev, vq))
+		if (!vhost_vq_avail_empty(&net->dev, vq))
 			vhost_poll_queue(&vq->poll);
+		else if (unlikely(vhost_enable_notify(&net->dev, vq))) {
+			vhost_disable_notify(&net->dev, vq);
+			vhost_poll_queue(&vq->poll);
+		}
+
 		mutex_unlock(&vq->mutex);
 
 		len = peek_head_len(sk);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vhost/vhost.c linux-libre-4.9.52-gnu/drivers/vhost/vhost.c
--- linux-libre-4.9-gnu/drivers/vhost/vhost.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vhost/vhost.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,14 +130,14 @@ static long vhost_get_vring_endian(struc
 
 static void vhost_init_is_le(struct vhost_virtqueue *vq)
 {
-	if (vhost_has_feature(vq, VIRTIO_F_VERSION_1))
-		vq->is_le = true;
+	vq->is_le = vhost_has_feature(vq, VIRTIO_F_VERSION_1)
+		|| virtio_legacy_is_little_endian();
 }
 #endif /* CONFIG_VHOST_CROSS_ENDIAN_LEGACY */
 
 static void vhost_reset_is_le(struct vhost_virtqueue *vq)
 {
-	vq->is_le = virtio_legacy_is_little_endian();
+	vhost_init_is_le(vq);
 }
 
 struct vhost_flush_struct {
@@ -1713,10 +1713,8 @@ int vhost_vq_init_access(struct vhost_vi
 	int r;
 	bool is_le = vq->is_le;
 
-	if (!vq->private_data) {
-		vhost_reset_is_le(vq);
+	if (!vq->private_data)
 		return 0;
-	}
 
 	vhost_init_is_le(vq);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vhost/vsock.c linux-libre-4.9.52-gnu/drivers/vhost/vsock.c
--- linux-libre-4.9-gnu/drivers/vhost/vsock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vhost/vsock.c	2017-09-27 08:40:05.000000000 -0400
@@ -368,6 +368,7 @@ static void vhost_vsock_handle_rx_kick(s
 
 static int vhost_vsock_start(struct vhost_vsock *vsock)
 {
+	struct vhost_virtqueue *vq;
 	size_t i;
 	int ret;
 
@@ -378,19 +379,20 @@ static int vhost_vsock_start(struct vhos
 		goto err;
 
 	for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) {
-		struct vhost_virtqueue *vq = &vsock->vqs[i];
+		vq = &vsock->vqs[i];
 
 		mutex_lock(&vq->mutex);
 
 		if (!vhost_vq_access_ok(vq)) {
 			ret = -EFAULT;
-			mutex_unlock(&vq->mutex);
 			goto err_vq;
 		}
 
 		if (!vq->private_data) {
 			vq->private_data = vsock;
-			vhost_vq_init_access(vq);
+			ret = vhost_vq_init_access(vq);
+			if (ret)
+				goto err_vq;
 		}
 
 		mutex_unlock(&vq->mutex);
@@ -400,8 +402,11 @@ static int vhost_vsock_start(struct vhos
 	return 0;
 
 err_vq:
+	vq->private_data = NULL;
+	mutex_unlock(&vq->mutex);
+
 	for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) {
-		struct vhost_virtqueue *vq = &vsock->vqs[i];
+		vq = &vsock->vqs[i];
 
 		mutex_lock(&vq->mutex);
 		vq->private_data = NULL;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/video/console/fbcon.c linux-libre-4.9.52-gnu/drivers/video/console/fbcon.c
--- linux-libre-4.9-gnu/drivers/video/console/fbcon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/video/console/fbcon.c	2017-09-27 08:40:05.000000000 -0400
@@ -1167,6 +1167,8 @@ static void fbcon_free_font(struct displ
 	p->userfont = 0;
 }
 
+static void set_vc_hi_font(struct vc_data *vc, bool set);
+
 static void fbcon_deinit(struct vc_data *vc)
 {
 	struct display *p = &fb_display[vc->vc_num];
@@ -1202,6 +1204,9 @@ finished:
 	if (free_font)
 		vc->vc_font.data = NULL;
 
+	if (vc->vc_hi_font_mask)
+		set_vc_hi_font(vc, false);
+
 	if (!con_is_bound(&fb_con))
 		fbcon_exit();
 
@@ -2438,32 +2443,10 @@ static int fbcon_get_font(struct vc_data
 	return 0;
 }
 
-static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
-			     const u8 * data, int userfont)
+/* set/clear vc_hi_font_mask and update vc attrs accordingly */
+static void set_vc_hi_font(struct vc_data *vc, bool set)
 {
-	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
-	struct fbcon_ops *ops = info->fbcon_par;
-	struct display *p = &fb_display[vc->vc_num];
-	int resize;
-	int cnt;
-	char *old_data = NULL;
-
-	if (con_is_visible(vc) && softback_lines)
-		fbcon_set_origin(vc);
-
-	resize = (w != vc->vc_font.width) || (h != vc->vc_font.height);
-	if (p->userfont)
-		old_data = vc->vc_font.data;
-	if (userfont)
-		cnt = FNTCHARCNT(data);
-	else
-		cnt = 256;
-	vc->vc_font.data = (void *)(p->fontdata = data);
-	if ((p->userfont = userfont))
-		REFCOUNT(data)++;
-	vc->vc_font.width = w;
-	vc->vc_font.height = h;
-	if (vc->vc_hi_font_mask && cnt == 256) {
+	if (!set) {
 		vc->vc_hi_font_mask = 0;
 		if (vc->vc_can_do_color) {
 			vc->vc_complement_mask >>= 1;
@@ -2486,7 +2469,7 @@ static int fbcon_do_set_font(struct vc_d
 			    ((c & 0xfe00) >> 1) | (c & 0xff);
 			vc->vc_attr >>= 1;
 		}
-	} else if (!vc->vc_hi_font_mask && cnt == 512) {
+	} else {
 		vc->vc_hi_font_mask = 0x100;
 		if (vc->vc_can_do_color) {
 			vc->vc_complement_mask <<= 1;
@@ -2518,8 +2501,38 @@ static int fbcon_do_set_font(struct vc_d
 			} else
 				vc->vc_video_erase_char = c & ~0x100;
 		}
-
 	}
+}
+
+static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
+			     const u8 * data, int userfont)
+{
+	struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
+	struct fbcon_ops *ops = info->fbcon_par;
+	struct display *p = &fb_display[vc->vc_num];
+	int resize;
+	int cnt;
+	char *old_data = NULL;
+
+	if (con_is_visible(vc) && softback_lines)
+		fbcon_set_origin(vc);
+
+	resize = (w != vc->vc_font.width) || (h != vc->vc_font.height);
+	if (p->userfont)
+		old_data = vc->vc_font.data;
+	if (userfont)
+		cnt = FNTCHARCNT(data);
+	else
+		cnt = 256;
+	vc->vc_font.data = (void *)(p->fontdata = data);
+	if ((p->userfont = userfont))
+		REFCOUNT(data)++;
+	vc->vc_font.width = w;
+	vc->vc_font.height = h;
+	if (vc->vc_hi_font_mask && cnt == 256)
+		set_vc_hi_font(vc, false);
+	else if (!vc->vc_hi_font_mask && cnt == 512)
+		set_vc_hi_font(vc, true);
 
 	if (resize) {
 		int cols, rows;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/video/fbdev/cobalt_lcdfb.c linux-libre-4.9.52-gnu/drivers/video/fbdev/cobalt_lcdfb.c
--- linux-libre-4.9-gnu/drivers/video/fbdev/cobalt_lcdfb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/video/fbdev/cobalt_lcdfb.c	2017-09-27 08:40:05.000000000 -0400
@@ -308,6 +308,11 @@ static int cobalt_lcdfb_probe(struct pla
 	info->screen_size = resource_size(res);
 	info->screen_base = devm_ioremap(&dev->dev, res->start,
 					 info->screen_size);
+	if (!info->screen_base) {
+		framebuffer_release(info);
+		return -ENOMEM;
+	}
+
 	info->fbops = &cobalt_lcd_fbops;
 	info->fix = cobalt_lcdfb_fix;
 	info->fix.smem_start = res->start;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/video/fbdev/core/fbcmap.c linux-libre-4.9.52-gnu/drivers/video/fbdev/core/fbcmap.c
--- linux-libre-4.9-gnu/drivers/video/fbdev/core/fbcmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/video/fbdev/core/fbcmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -163,17 +163,18 @@ void fb_dealloc_cmap(struct fb_cmap *cma
 
 int fb_copy_cmap(const struct fb_cmap *from, struct fb_cmap *to)
 {
-	int tooff = 0, fromoff = 0;
-	int size;
+	unsigned int tooff = 0, fromoff = 0;
+	size_t size;
 
 	if (to->start > from->start)
 		fromoff = to->start - from->start;
 	else
 		tooff = from->start - to->start;
-	size = to->len - tooff;
-	if (size > (int) (from->len - fromoff))
-		size = from->len - fromoff;
-	if (size <= 0)
+	if (fromoff >= from->len || tooff >= to->len)
+		return -EINVAL;
+
+	size = min_t(size_t, to->len - tooff, from->len - fromoff);
+	if (size == 0)
 		return -EINVAL;
 	size *= sizeof(u16);
 
@@ -187,17 +188,18 @@ int fb_copy_cmap(const struct fb_cmap *f
 
 int fb_cmap_to_user(const struct fb_cmap *from, struct fb_cmap_user *to)
 {
-	int tooff = 0, fromoff = 0;
-	int size;
+	unsigned int tooff = 0, fromoff = 0;
+	size_t size;
 
 	if (to->start > from->start)
 		fromoff = to->start - from->start;
 	else
 		tooff = from->start - to->start;
-	size = to->len - tooff;
-	if (size > (int) (from->len - fromoff))
-		size = from->len - fromoff;
-	if (size <= 0)
+	if (fromoff >= from->len || tooff >= to->len)
+		return -EINVAL;
+
+	size = min_t(size_t, to->len - tooff, from->len - fromoff);
+	if (size == 0)
 		return -EINVAL;
 	size *= sizeof(u16);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/video/fbdev/efifb.c linux-libre-4.9.52-gnu/drivers/video/fbdev/efifb.c
--- linux-libre-4.9-gnu/drivers/video/fbdev/efifb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/video/fbdev/efifb.c	2017-09-27 08:40:05.000000000 -0400
@@ -10,6 +10,7 @@
 #include <linux/efi.h>
 #include <linux/errno.h>
 #include <linux/fb.h>
+#include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/screen_info.h>
 #include <video/vga.h>
@@ -118,6 +119,8 @@ static inline bool fb_base_is_valid(void
 	return false;
 }
 
+static bool pci_dev_disabled;	/* FB base matches BAR of a disabled device */
+
 static int efifb_probe(struct platform_device *dev)
 {
 	struct fb_info *info;
@@ -127,7 +130,7 @@ static int efifb_probe(struct platform_d
 	unsigned int size_total;
 	char *option = NULL;
 
-	if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
+	if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled)
 		return -ENODEV;
 
 	if (fb_get_options("efifb", &option))
@@ -327,3 +330,64 @@ static struct platform_driver efifb_driv
 };
 
 builtin_platform_driver(efifb_driver);
+
+#if defined(CONFIG_PCI) && !defined(CONFIG_X86)
+
+static bool pci_bar_found;	/* did we find a BAR matching the efifb base? */
+
+static void claim_efifb_bar(struct pci_dev *dev, int idx)
+{
+	u16 word;
+
+	pci_bar_found = true;
+
+	pci_read_config_word(dev, PCI_COMMAND, &word);
+	if (!(word & PCI_COMMAND_MEMORY)) {
+		pci_dev_disabled = true;
+		dev_err(&dev->dev,
+			"BAR %d: assigned to efifb but device is disabled!\n",
+			idx);
+		return;
+	}
+
+	if (pci_claim_resource(dev, idx)) {
+		pci_dev_disabled = true;
+		dev_err(&dev->dev,
+			"BAR %d: failed to claim resource for efifb!\n", idx);
+		return;
+	}
+
+	dev_info(&dev->dev, "BAR %d: assigned to efifb\n", idx);
+}
+
+static void efifb_fixup_resources(struct pci_dev *dev)
+{
+	u64 base = screen_info.lfb_base;
+	u64 size = screen_info.lfb_size;
+	int i;
+
+	if (pci_bar_found || screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
+		return;
+
+	if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE)
+		base |= (u64)screen_info.ext_lfb_base << 32;
+
+	if (!base)
+		return;
+
+	for (i = 0; i < PCI_STD_RESOURCE_END; i++) {
+		struct resource *res = &dev->resource[i];
+
+		if (!(res->flags & IORESOURCE_MEM))
+			continue;
+
+		if (res->start <= base && res->end >= base + size - 1) {
+			claim_efifb_bar(dev, i);
+			break;
+		}
+	}
+}
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY,
+			       16, efifb_fixup_resources);
+
+#endif
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/video/fbdev/xen-fbfront.c linux-libre-4.9.52-gnu/drivers/video/fbdev/xen-fbfront.c
--- linux-libre-4.9-gnu/drivers/video/fbdev/xen-fbfront.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/video/fbdev/xen-fbfront.c	2017-09-27 08:40:05.000000000 -0400
@@ -644,7 +644,6 @@ static void xenfb_backend_changed(struct
 		break;
 
 	case XenbusStateInitWait:
-InitWait:
 		xenbus_switch_state(dev, XenbusStateConnected);
 		break;
 
@@ -655,7 +654,8 @@ InitWait:
 		 * get Connected twice here.
 		 */
 		if (dev->state != XenbusStateConnected)
-			goto InitWait; /* no InitWait seen yet, fudge it */
+			/* no InitWait seen yet, fudge it */
+			xenbus_switch_state(dev, XenbusStateConnected);
 
 		if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
 				 "request-update", "%d", &val) < 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/virtio/virtio_balloon.c linux-libre-4.9.52-gnu/drivers/virtio/virtio_balloon.c
--- linux-libre-4.9-gnu/drivers/virtio/virtio_balloon.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/virtio/virtio_balloon.c	2017-09-27 08:40:05.000000000 -0400
@@ -427,6 +427,8 @@ static int init_vqs(struct virtio_balloo
 		 * Prime this virtqueue with one buffer so the hypervisor can
 		 * use it to signal us later (it can't be broken yet!).
 		 */
+		update_balloon_stats(vb);
+
 		sg_init_one(&sg, vb->stats, sizeof vb->stats);
 		if (virtqueue_add_outbuf(vb->stats_vq, &sg, 1, vb, GFP_KERNEL)
 		    < 0)
@@ -615,8 +617,12 @@ static void virtballoon_remove(struct vi
 	cancel_work_sync(&vb->update_balloon_stats_work);
 
 	remove_common(vb);
+#ifdef CONFIG_BALLOON_COMPACTION
 	if (vb->vb_dev_info.inode)
 		iput(vb->vb_dev_info.inode);
+
+	kern_unmount(balloon_mnt);
+#endif
 	kfree(vb);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/virtio/virtio_mmio.c linux-libre-4.9.52-gnu/drivers/virtio/virtio_mmio.c
--- linux-libre-4.9-gnu/drivers/virtio/virtio_mmio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/virtio/virtio_mmio.c	2017-09-27 08:40:05.000000000 -0400
@@ -59,6 +59,7 @@
 #define pr_fmt(fmt) "virtio-mmio: " fmt
 
 #include <linux/acpi.h>
+#include <linux/dma-mapping.h>
 #include <linux/highmem.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -497,6 +498,7 @@ static int virtio_mmio_probe(struct plat
 	struct virtio_mmio_device *vm_dev;
 	struct resource *mem;
 	unsigned long magic;
+	int rc;
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!mem)
@@ -545,9 +547,25 @@ static int virtio_mmio_probe(struct plat
 	}
 	vm_dev->vdev.id.vendor = readl(vm_dev->base + VIRTIO_MMIO_VENDOR_ID);
 
-	if (vm_dev->version == 1)
+	if (vm_dev->version == 1) {
 		writel(PAGE_SIZE, vm_dev->base + VIRTIO_MMIO_GUEST_PAGE_SIZE);
 
+		rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+		/*
+		 * In the legacy case, ensure our coherently-allocated virtio
+		 * ring will be at an address expressable as a 32-bit PFN.
+		 */
+		if (!rc)
+			dma_set_coherent_mask(&pdev->dev,
+					      DMA_BIT_MASK(32 + PAGE_SHIFT));
+	} else {
+		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	}
+	if (rc)
+		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (rc)
+		dev_warn(&pdev->dev, "Failed to enable 64-bit or 32-bit DMA.  Trying to continue, but this might not work.\n");
+
 	platform_set_drvdata(pdev, vm_dev);
 
 	return register_virtio_device(&vm_dev->vdev);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vme/bridges/vme_ca91cx42.c linux-libre-4.9.52-gnu/drivers/vme/bridges/vme_ca91cx42.c
--- linux-libre-4.9-gnu/drivers/vme/bridges/vme_ca91cx42.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vme/bridges/vme_ca91cx42.c	2017-09-27 08:40:05.000000000 -0400
@@ -464,7 +464,7 @@ static int ca91cx42_slave_get(struct vme
 	vme_bound = ioread32(bridge->base + CA91CX42_VSI_BD[i]);
 	pci_offset = ioread32(bridge->base + CA91CX42_VSI_TO[i]);
 
-	*pci_base = (dma_addr_t)vme_base + pci_offset;
+	*pci_base = (dma_addr_t)*vme_base + pci_offset;
 	*size = (unsigned long long)((vme_bound - *vme_base) + granularity);
 
 	*enabled = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/vme/vme.c linux-libre-4.9.52-gnu/drivers/vme/vme.c
--- linux-libre-4.9-gnu/drivers/vme/vme.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/vme/vme.c	2017-09-27 08:40:05.000000000 -0400
@@ -1625,10 +1625,25 @@ static int vme_bus_probe(struct device *
 	return retval;
 }
 
+static int vme_bus_remove(struct device *dev)
+{
+	int retval = -ENODEV;
+	struct vme_driver *driver;
+	struct vme_dev *vdev = dev_to_vme_dev(dev);
+
+	driver = dev->platform_data;
+
+	if (driver->remove != NULL)
+		retval = driver->remove(vdev);
+
+	return retval;
+}
+
 struct bus_type vme_bus_type = {
 	.name = "vme",
 	.match = vme_bus_match,
 	.probe = vme_bus_probe,
+	.remove = vme_bus_remove,
 };
 EXPORT_SYMBOL(vme_bus_type);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/w1/masters/ds2490.c linux-libre-4.9.52-gnu/drivers/w1/masters/ds2490.c
--- linux-libre-4.9-gnu/drivers/w1/masters/ds2490.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/w1/masters/ds2490.c	2017-09-27 08:40:05.000000000 -0400
@@ -153,6 +153,9 @@ struct ds_device
 	 */
 	u16			spu_bit;
 
+	u8			st_buf[ST_SIZE];
+	u8			byte_buf;
+
 	struct w1_bus_master	master;
 };
 
@@ -174,7 +177,6 @@ struct ds_status
 	u8			data_in_buffer_status;
 	u8			reserved1;
 	u8			reserved2;
-
 };
 
 static struct usb_device_id ds_id_table [] = {
@@ -244,28 +246,6 @@ static int ds_send_control(struct ds_dev
 	return err;
 }
 
-static int ds_recv_status_nodump(struct ds_device *dev, struct ds_status *st,
-				 unsigned char *buf, int size)
-{
-	int count, err;
-
-	memset(st, 0, sizeof(*st));
-
-	count = 0;
-	err = usb_interrupt_msg(dev->udev, usb_rcvintpipe(dev->udev,
-		dev->ep[EP_STATUS]), buf, size, &count, 1000);
-	if (err < 0) {
-		pr_err("Failed to read 1-wire data from 0x%x: err=%d.\n",
-		       dev->ep[EP_STATUS], err);
-		return err;
-	}
-
-	if (count >= sizeof(*st))
-		memcpy(st, buf, sizeof(*st));
-
-	return count;
-}
-
 static inline void ds_print_msg(unsigned char *buf, unsigned char *str, int off)
 {
 	pr_info("%45s: %8x\n", str, buf[off]);
@@ -324,6 +304,35 @@ static void ds_dump_status(struct ds_dev
 	}
 }
 
+static int ds_recv_status(struct ds_device *dev, struct ds_status *st,
+			  bool dump)
+{
+	int count, err;
+
+	if (st)
+		memset(st, 0, sizeof(*st));
+
+	count = 0;
+	err = usb_interrupt_msg(dev->udev,
+				usb_rcvintpipe(dev->udev,
+					       dev->ep[EP_STATUS]),
+				dev->st_buf, sizeof(dev->st_buf),
+				&count, 1000);
+	if (err < 0) {
+		pr_err("Failed to read 1-wire data from 0x%x: err=%d.\n",
+		       dev->ep[EP_STATUS], err);
+		return err;
+	}
+
+	if (dump)
+		ds_dump_status(dev, dev->st_buf, count);
+
+	if (st && count >= sizeof(*st))
+		memcpy(st, dev->st_buf, sizeof(*st));
+
+	return count;
+}
+
 static void ds_reset_device(struct ds_device *dev)
 {
 	ds_send_control_cmd(dev, CTL_RESET_DEVICE, 0);
@@ -344,7 +353,6 @@ static void ds_reset_device(struct ds_de
 static int ds_recv_data(struct ds_device *dev, unsigned char *buf, int size)
 {
 	int count, err;
-	struct ds_status st;
 
 	/* Careful on size.  If size is less than what is available in
 	 * the input buffer, the device fails the bulk transfer and
@@ -359,14 +367,9 @@ static int ds_recv_data(struct ds_device
 	err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_DATA_IN]),
 				buf, size, &count, 1000);
 	if (err < 0) {
-		u8 buf[ST_SIZE];
-		int count;
-
 		pr_info("Clearing ep0x%x.\n", dev->ep[EP_DATA_IN]);
 		usb_clear_halt(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_DATA_IN]));
-
-		count = ds_recv_status_nodump(dev, &st, buf, sizeof(buf));
-		ds_dump_status(dev, buf, count);
+		ds_recv_status(dev, NULL, true);
 		return err;
 	}
 
@@ -404,7 +407,6 @@ int ds_stop_pulse(struct ds_device *dev,
 {
 	struct ds_status st;
 	int count = 0, err = 0;
-	u8 buf[ST_SIZE];
 
 	do {
 		err = ds_send_control(dev, CTL_HALT_EXE_IDLE, 0);
@@ -413,7 +415,7 @@ int ds_stop_pulse(struct ds_device *dev,
 		err = ds_send_control(dev, CTL_RESUME_EXE, 0);
 		if (err)
 			break;
-		err = ds_recv_status_nodump(dev, &st, buf, sizeof(buf));
+		err = ds_recv_status(dev, &st, false);
 		if (err)
 			break;
 
@@ -456,18 +458,17 @@ int ds_detect(struct ds_device *dev, str
 
 static int ds_wait_status(struct ds_device *dev, struct ds_status *st)
 {
-	u8 buf[ST_SIZE];
 	int err, count = 0;
 
 	do {
 		st->status = 0;
-		err = ds_recv_status_nodump(dev, st, buf, sizeof(buf));
+		err = ds_recv_status(dev, st, false);
 #if 0
 		if (err >= 0) {
 			int i;
 			printk("0x%x: count=%d, status: ", dev->ep[EP_STATUS], err);
 			for (i=0; i<err; ++i)
-				printk("%02x ", buf[i]);
+				printk("%02x ", dev->st_buf[i]);
 			printk("\n");
 		}
 #endif
@@ -485,7 +486,7 @@ static int ds_wait_status(struct ds_devi
 	 * can do something with it).
 	 */
 	if (err > 16 || count >= 100 || err < 0)
-		ds_dump_status(dev, buf, err);
+		ds_dump_status(dev, dev->st_buf, err);
 
 	/* Extended data isn't an error.  Well, a short is, but the dump
 	 * would have already told the user that and we can't do anything
@@ -608,7 +609,6 @@ static int ds_write_byte(struct ds_devic
 {
 	int err;
 	struct ds_status st;
-	u8 rbyte;
 
 	err = ds_send_control(dev, COMM_BYTE_IO | COMM_IM | dev->spu_bit, byte);
 	if (err)
@@ -621,11 +621,11 @@ static int ds_write_byte(struct ds_devic
 	if (err)
 		return err;
 
-	err = ds_recv_data(dev, &rbyte, sizeof(rbyte));
+	err = ds_recv_data(dev, &dev->byte_buf, 1);
 	if (err < 0)
 		return err;
 
-	return !(byte == rbyte);
+	return !(byte == dev->byte_buf);
 }
 
 static int ds_read_byte(struct ds_device *dev, u8 *byte)
@@ -712,7 +712,6 @@ static void ds9490r_search(void *data, s
 	int err;
 	u16 value, index;
 	struct ds_status st;
-	u8 st_buf[ST_SIZE];
 	int search_limit;
 	int found = 0;
 	int i;
@@ -724,7 +723,12 @@ static void ds9490r_search(void *data, s
 	/* FIFO 128 bytes, bulk packet size 64, read a multiple of the
 	 * packet size.
 	 */
-	u64 buf[2*64/8];
+	const size_t bufsize = 2 * 64;
+	u64 *buf;
+
+	buf = kmalloc(bufsize, GFP_KERNEL);
+	if (!buf)
+		return;
 
 	mutex_lock(&master->bus_mutex);
 
@@ -745,10 +749,9 @@ static void ds9490r_search(void *data, s
 	do {
 		schedule_timeout(jtime);
 
-		if (ds_recv_status_nodump(dev, &st, st_buf, sizeof(st_buf)) <
-			sizeof(st)) {
+		err = ds_recv_status(dev, &st, false);
+		if (err < 0 || err < sizeof(st))
 			break;
-		}
 
 		if (st.data_in_buffer_status) {
 			/* Bulk in can receive partial ids, but when it does
@@ -758,7 +761,7 @@ static void ds9490r_search(void *data, s
 			 * bulk without first checking if status says there
 			 * is data to read.
 			 */
-			err = ds_recv_data(dev, (u8 *)buf, sizeof(buf));
+			err = ds_recv_data(dev, (u8 *)buf, bufsize);
 			if (err < 0)
 				break;
 			for (i = 0; i < err/8; ++i) {
@@ -794,9 +797,14 @@ static void ds9490r_search(void *data, s
 	}
 search_out:
 	mutex_unlock(&master->bus_mutex);
+	kfree(buf);
 }
 
 #if 0
+/*
+ * FIXME: if this disabled code is ever used in the future all ds_send_data()
+ * calls must be changed to use a DMAable buffer.
+ */
 static int ds_match_access(struct ds_device *dev, u64 init)
 {
 	int err;
@@ -845,13 +853,12 @@ static int ds_set_path(struct ds_device
 
 static u8 ds9490r_touch_bit(void *data, u8 bit)
 {
-	u8 ret;
 	struct ds_device *dev = data;
 
-	if (ds_touch_bit(dev, bit, &ret))
+	if (ds_touch_bit(dev, bit, &dev->byte_buf))
 		return 0;
 
-	return ret;
+	return dev->byte_buf;
 }
 
 #if 0
@@ -866,13 +873,12 @@ static u8 ds9490r_read_bit(void *data)
 {
 	struct ds_device *dev = data;
 	int err;
-	u8 bit = 0;
 
-	err = ds_touch_bit(dev, 1, &bit);
+	err = ds_touch_bit(dev, 1, &dev->byte_buf);
 	if (err)
 		return 0;
 
-	return bit & 1;
+	return dev->byte_buf & 1;
 }
 #endif
 
@@ -887,32 +893,52 @@ static u8 ds9490r_read_byte(void *data)
 {
 	struct ds_device *dev = data;
 	int err;
-	u8 byte = 0;
 
-	err = ds_read_byte(dev, &byte);
+	err = ds_read_byte(dev, &dev->byte_buf);
 	if (err)
 		return 0;
 
-	return byte;
+	return dev->byte_buf;
 }
 
 static void ds9490r_write_block(void *data, const u8 *buf, int len)
 {
 	struct ds_device *dev = data;
+	u8 *tbuf;
 
-	ds_write_block(dev, (u8 *)buf, len);
+	if (len <= 0)
+		return;
+
+	tbuf = kmalloc(len, GFP_KERNEL);
+	if (!tbuf)
+		return;
+
+	memcpy(tbuf, buf, len);
+	ds_write_block(dev, tbuf, len);
+
+	kfree(tbuf);
 }
 
 static u8 ds9490r_read_block(void *data, u8 *buf, int len)
 {
 	struct ds_device *dev = data;
 	int err;
+	u8 *tbuf;
 
-	err = ds_read_block(dev, buf, len);
-	if (err < 0)
+	if (len <= 0)
 		return 0;
 
-	return len;
+	tbuf = kmalloc(len, GFP_KERNEL);
+	if (!tbuf)
+		return 0;
+
+	err = ds_read_block(dev, tbuf, len);
+	if (err >= 0)
+		memcpy(buf, tbuf, len);
+
+	kfree(tbuf);
+
+	return err >= 0 ? len : 0;
 }
 
 static u8 ds9490r_reset(void *data)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/w1/w1.c linux-libre-4.9.52-gnu/drivers/w1/w1.c
--- linux-libre-4.9-gnu/drivers/w1/w1.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/w1/w1.c	2017-09-27 08:40:05.000000000 -0400
@@ -763,6 +763,7 @@ int w1_attach_slave_device(struct w1_mas
 		dev_err(&dev->dev, "%s: Attaching %s failed.\n", __func__,
 			 sl->name);
 		w1_family_put(sl->family);
+		atomic_dec(&sl->master->refcnt);
 		kfree(sl);
 		return err;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/watchdog/bcm_kona_wdt.c linux-libre-4.9.52-gnu/drivers/watchdog/bcm_kona_wdt.c
--- linux-libre-4.9-gnu/drivers/watchdog/bcm_kona_wdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/watchdog/bcm_kona_wdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -304,6 +304,8 @@ static int bcm_kona_wdt_probe(struct pla
 	if (!wdt)
 		return -ENOMEM;
 
+	spin_lock_init(&wdt->lock);
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	wdt->base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(wdt->base))
@@ -316,7 +318,6 @@ static int bcm_kona_wdt_probe(struct pla
 		return ret;
 	}
 
-	spin_lock_init(&wdt->lock);
 	platform_set_drvdata(pdev, wdt);
 	watchdog_set_drvdata(&bcm_kona_wdt_wdd, wdt);
 	bcm_kona_wdt_wdd.parent = &pdev->dev;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/watchdog/mei_wdt.c linux-libre-4.9.52-gnu/drivers/watchdog/mei_wdt.c
--- linux-libre-4.9-gnu/drivers/watchdog/mei_wdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/watchdog/mei_wdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -389,6 +389,8 @@ static int mei_wdt_register(struct mei_w
 	wdt->wdd.max_timeout = MEI_WDT_MAX_TIMEOUT;
 
 	watchdog_set_drvdata(&wdt->wdd, wdt);
+	watchdog_stop_on_reboot(&wdt->wdd);
+
 	ret = watchdog_register_device(&wdt->wdd);
 	if (ret) {
 		dev_err(dev, "unable to register watchdog device = %d.\n", ret);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/watchdog/pcwd_usb.c linux-libre-4.9.52-gnu/drivers/watchdog/pcwd_usb.c
--- linux-libre-4.9-gnu/drivers/watchdog/pcwd_usb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/watchdog/pcwd_usb.c	2017-09-27 08:40:05.000000000 -0400
@@ -630,6 +630,9 @@ static int usb_pcwd_probe(struct usb_int
 		return -ENODEV;
 	}
 
+	if (iface_desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	/* check out the endpoint: it has to be Interrupt & IN */
 	endpoint = &iface_desc->endpoint[0].desc;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/watchdog/qcom-wdt.c linux-libre-4.9.52-gnu/drivers/watchdog/qcom-wdt.c
--- linux-libre-4.9-gnu/drivers/watchdog/qcom-wdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/watchdog/qcom-wdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -209,7 +209,7 @@ static int qcom_wdt_probe(struct platfor
 	wdt->wdd.parent = &pdev->dev;
 	wdt->layout = regs;
 
-	if (readl(wdt->base + WDT_STS) & 1)
+	if (readl(wdt_addr(wdt, WDT_STS)) & 1)
 		wdt->wdd.bootstatus = WDIOF_CARDRESET;
 
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/watchdog/s3c2410_wdt.c linux-libre-4.9.52-gnu/drivers/watchdog/s3c2410_wdt.c
--- linux-libre-4.9-gnu/drivers/watchdog/s3c2410_wdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/watchdog/s3c2410_wdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -46,6 +46,7 @@
 #define S3C2410_WTCON		0x00
 #define S3C2410_WTDAT		0x04
 #define S3C2410_WTCNT		0x08
+#define S3C2410_WTCLRINT	0x0c
 
 #define S3C2410_WTCNT_MAXCNT	0xffff
 
@@ -72,6 +73,7 @@
 #define EXYNOS5_WDT_MASK_RESET_REG_OFFSET	0x040c
 #define QUIRK_HAS_PMU_CONFIG			(1 << 0)
 #define QUIRK_HAS_RST_STAT			(1 << 1)
+#define QUIRK_HAS_WTCLRINT_REG			(1 << 2)
 
 /* These quirks require that we have a PMU register map */
 #define QUIRKS_HAVE_PMUREG			(QUIRK_HAS_PMU_CONFIG | \
@@ -143,13 +145,18 @@ static const struct s3c2410_wdt_variant
 };
 
 #ifdef CONFIG_OF
+static const struct s3c2410_wdt_variant drv_data_s3c6410 = {
+	.quirks = QUIRK_HAS_WTCLRINT_REG,
+};
+
 static const struct s3c2410_wdt_variant drv_data_exynos5250  = {
 	.disable_reg = EXYNOS5_WDT_DISABLE_REG_OFFSET,
 	.mask_reset_reg = EXYNOS5_WDT_MASK_RESET_REG_OFFSET,
 	.mask_bit = 20,
 	.rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET,
 	.rst_stat_bit = 20,
-	.quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT,
+	.quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT \
+		  | QUIRK_HAS_WTCLRINT_REG,
 };
 
 static const struct s3c2410_wdt_variant drv_data_exynos5420 = {
@@ -158,7 +165,8 @@ static const struct s3c2410_wdt_variant
 	.mask_bit = 0,
 	.rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET,
 	.rst_stat_bit = 9,
-	.quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT,
+	.quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT \
+		  | QUIRK_HAS_WTCLRINT_REG,
 };
 
 static const struct s3c2410_wdt_variant drv_data_exynos7 = {
@@ -167,12 +175,15 @@ static const struct s3c2410_wdt_variant
 	.mask_bit = 23,
 	.rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET,
 	.rst_stat_bit = 23,	/* A57 WDTRESET */
-	.quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT,
+	.quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT \
+		  | QUIRK_HAS_WTCLRINT_REG,
 };
 
 static const struct of_device_id s3c2410_wdt_match[] = {
 	{ .compatible = "samsung,s3c2410-wdt",
 	  .data = &drv_data_s3c2410 },
+	{ .compatible = "samsung,s3c6410-wdt",
+	  .data = &drv_data_s3c6410 },
 	{ .compatible = "samsung,exynos5250-wdt",
 	  .data = &drv_data_exynos5250 },
 	{ .compatible = "samsung,exynos5420-wdt",
@@ -418,6 +429,10 @@ static irqreturn_t s3c2410wdt_irq(int ir
 	dev_info(wdt->dev, "watchdog timer expired (irq)\n");
 
 	s3c2410wdt_keepalive(&wdt->wdt_device);
+
+	if (wdt->drv_data->quirks & QUIRK_HAS_WTCLRINT_REG)
+		writel(0x1, wdt->reg_base + S3C2410_WTCLRINT);
+
 	return IRQ_HANDLED;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/arm-device.c linux-libre-4.9.52-gnu/drivers/xen/arm-device.c
--- linux-libre-4.9-gnu/drivers/xen/arm-device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/arm-device.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,9 +58,13 @@ static int xen_map_device_mmio(const str
 	xen_pfn_t *gpfns;
 	xen_ulong_t *idxs;
 	int *errs;
-	struct xen_add_to_physmap_range xatp;
 
 	for (i = 0; i < count; i++) {
+		struct xen_add_to_physmap_range xatp = {
+			.domid = DOMID_SELF,
+			.space = XENMAPSPACE_dev_mmio
+		};
+
 		r = &resources[i];
 		nr = DIV_ROUND_UP(resource_size(r), XEN_PAGE_SIZE);
 		if ((resource_type(r) != IORESOURCE_MEM) || (nr == 0))
@@ -87,9 +91,7 @@ static int xen_map_device_mmio(const str
 			idxs[j] = XEN_PFN_DOWN(r->start) + j;
 		}
 
-		xatp.domid = DOMID_SELF;
 		xatp.size = nr;
-		xatp.space = XENMAPSPACE_dev_mmio;
 
 		set_xen_guest_handle(xatp.gpfns, gpfns);
 		set_xen_guest_handle(xatp.idxs, idxs);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/biomerge.c linux-libre-4.9.52-gnu/drivers/xen/biomerge.c
--- linux-libre-4.9-gnu/drivers/xen/biomerge.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/biomerge.c	2017-09-27 08:40:05.000000000 -0400
@@ -10,8 +10,7 @@ bool xen_biovec_phys_mergeable(const str
 	unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page));
 	unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page));
 
-	return __BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&
-		((bfn1 == bfn2) || ((bfn1+1) == bfn2));
+	return bfn1 + PFN_DOWN(vec1->bv_offset + vec1->bv_len) == bfn2;
 #else
 	/*
 	 * XXX: Add support for merging bio_vec when using different page
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/events/events_base.c linux-libre-4.9.52-gnu/drivers/xen/events/events_base.c
--- linux-libre-4.9-gnu/drivers/xen/events/events_base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/events/events_base.c	2017-09-27 08:40:05.000000000 -0400
@@ -1314,6 +1314,9 @@ static int rebind_irq_to_cpu(unsigned ir
 	if (!VALID_EVTCHN(evtchn))
 		return -1;
 
+	if (!xen_support_evtchn_rebind())
+		return -1;
+
 	/* Send future instances of this interrupt to other vcpu. */
 	bind_vcpu.port = evtchn;
 	bind_vcpu.vcpu = xen_vcpu_nr(tcpu);
@@ -1647,15 +1650,20 @@ void xen_callback_vector(void)
 {
 	int rc;
 	uint64_t callback_via;
-
-	callback_via = HVM_CALLBACK_VECTOR(HYPERVISOR_CALLBACK_VECTOR);
-	rc = xen_set_callback_via(callback_via);
-	BUG_ON(rc);
-	pr_info("Xen HVM callback vector for event delivery is enabled\n");
-	/* in the restore case the vector has already been allocated */
-	if (!test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors))
-		alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR,
-				xen_hvm_callback_vector);
+	if (xen_have_vector_callback) {
+		callback_via = HVM_CALLBACK_VECTOR(HYPERVISOR_CALLBACK_VECTOR);
+		rc = xen_set_callback_via(callback_via);
+		if (rc) {
+			pr_err("Request for Xen HVM callback vector failed\n");
+			xen_have_vector_callback = 0;
+			return;
+		}
+		pr_info("Xen HVM callback vector for event delivery is enabled\n");
+		/* in the restore case the vector has already been allocated */
+		if (!test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors))
+			alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR,
+					xen_hvm_callback_vector);
+	}
 }
 #else
 void xen_callback_vector(void) {}
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/gntdev.c linux-libre-4.9.52-gnu/drivers/xen/gntdev.c
--- linux-libre-4.9-gnu/drivers/xen/gntdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/gntdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -1007,7 +1007,7 @@ static int gntdev_mmap(struct file *flip
 
 	vma->vm_ops = &gntdev_vmops;
 
-	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_IO;
+	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP | VM_MIXEDMAP;
 
 	if (use_ptemod)
 		vma->vm_flags |= VM_DONTCOPY;
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/platform-pci.c linux-libre-4.9.52-gnu/drivers/xen/platform-pci.c
--- linux-libre-4.9-gnu/drivers/xen/platform-pci.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/platform-pci.c	2017-09-27 08:40:05.000000000 -0400
@@ -42,6 +42,7 @@
 static unsigned long platform_mmio;
 static unsigned long platform_mmio_alloc;
 static unsigned long platform_mmiolen;
+static uint64_t callback_via;
 
 static unsigned long alloc_xen_mmio(unsigned long len)
 {
@@ -54,6 +55,51 @@ static unsigned long alloc_xen_mmio(unsi
 	return addr;
 }
 
+static uint64_t get_callback_via(struct pci_dev *pdev)
+{
+	u8 pin;
+	int irq;
+
+	irq = pdev->irq;
+	if (irq < 16)
+		return irq; /* ISA IRQ */
+
+	pin = pdev->pin;
+
+	/* We don't know the GSI. Specify the PCI INTx line instead. */
+	return ((uint64_t)0x01 << 56) | /* PCI INTx identifier */
+		((uint64_t)pci_domain_nr(pdev->bus) << 32) |
+		((uint64_t)pdev->bus->number << 16) |
+		((uint64_t)(pdev->devfn & 0xff) << 8) |
+		((uint64_t)(pin - 1) & 3);
+}
+
+static irqreturn_t do_hvm_evtchn_intr(int irq, void *dev_id)
+{
+	xen_hvm_evtchn_do_upcall();
+	return IRQ_HANDLED;
+}
+
+static int xen_allocate_irq(struct pci_dev *pdev)
+{
+	return request_irq(pdev->irq, do_hvm_evtchn_intr,
+			IRQF_NOBALANCING | IRQF_TRIGGER_RISING,
+			"xen-platform-pci", pdev);
+}
+
+static int platform_pci_resume(struct pci_dev *pdev)
+{
+	int err;
+	if (xen_have_vector_callback)
+		return 0;
+	err = xen_set_callback_via(callback_via);
+	if (err) {
+		dev_err(&pdev->dev, "platform_pci_resume failure!\n");
+		return err;
+	}
+	return 0;
+}
+
 static int platform_pci_probe(struct pci_dev *pdev,
 			      const struct pci_device_id *ent)
 {
@@ -92,6 +138,21 @@ static int platform_pci_probe(struct pci
 	platform_mmio = mmio_addr;
 	platform_mmiolen = mmio_len;
 
+	if (!xen_have_vector_callback) {
+		ret = xen_allocate_irq(pdev);
+		if (ret) {
+			dev_warn(&pdev->dev, "request_irq failed err=%d\n", ret);
+			goto out;
+		}
+		callback_via = get_callback_via(pdev);
+		ret = xen_set_callback_via(callback_via);
+		if (ret) {
+			dev_warn(&pdev->dev, "Unable to set the evtchn callback "
+					 "err=%d\n", ret);
+			goto out;
+		}
+	}
+
 	max_nr_gframes = gnttab_max_grant_frames();
 	grant_frames = alloc_xen_mmio(PAGE_SIZE * max_nr_gframes);
 	ret = gnttab_setup_auto_xlat_frames(grant_frames);
@@ -123,6 +184,9 @@ static struct pci_driver platform_driver
 	.name =           DRV_NAME,
 	.probe =          platform_pci_probe,
 	.id_table =       platform_pci_tbl,
+#ifdef CONFIG_PM
+	.resume_early =   platform_pci_resume,
+#endif
 };
 
 static int __init platform_pci_init(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/privcmd.c linux-libre-4.9.52-gnu/drivers/xen/privcmd.c
--- linux-libre-4.9-gnu/drivers/xen/privcmd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/privcmd.c	2017-09-27 08:40:05.000000000 -0400
@@ -335,8 +335,8 @@ static int mmap_batch_fn(void *data, int
 				st->global_error = 1;
 		}
 	}
-	st->va += PAGE_SIZE * nr;
-	st->index += nr;
+	st->va += XEN_PAGE_SIZE * nr;
+	st->index += nr / XEN_PFN_PER_PAGE;
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/swiotlb-xen.c linux-libre-4.9.52-gnu/drivers/xen/swiotlb-xen.c
--- linux-libre-4.9-gnu/drivers/xen/swiotlb-xen.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/swiotlb-xen.c	2017-09-27 08:40:05.000000000 -0400
@@ -392,7 +392,7 @@ dma_addr_t xen_swiotlb_map_page(struct d
 	if (dma_capable(dev, dev_addr, size) &&
 	    !range_straddles_page_boundary(phys, size) &&
 		!xen_arch_need_swiotlb(dev, phys, dev_addr) &&
-		!swiotlb_force) {
+		(swiotlb_force != SWIOTLB_FORCE)) {
 		/* we are not interested in the dma_addr returned by
 		 * xen_dma_map_page, only in the potential cache flushes executed
 		 * by the function. */
@@ -409,9 +409,9 @@ dma_addr_t xen_swiotlb_map_page(struct d
 	if (map == SWIOTLB_MAP_ERROR)
 		return DMA_ERROR_CODE;
 
+	dev_addr = xen_phys_to_bus(map);
 	xen_dma_map_page(dev, pfn_to_page(map >> PAGE_SHIFT),
 					dev_addr, map & ~PAGE_MASK, size, dir, attrs);
-	dev_addr = xen_phys_to_bus(map);
 
 	/*
 	 * Ensure that the address returned is DMA'ble
@@ -549,7 +549,7 @@ xen_swiotlb_map_sg_attrs(struct device *
 		phys_addr_t paddr = sg_phys(sg);
 		dma_addr_t dev_addr = xen_phys_to_bus(paddr);
 
-		if (swiotlb_force ||
+		if (swiotlb_force == SWIOTLB_FORCE ||
 		    xen_arch_need_swiotlb(hwdev, paddr, dev_addr) ||
 		    !dma_capable(hwdev, dev_addr, sg->length) ||
 		    range_straddles_page_boundary(paddr, sg->length)) {
@@ -567,13 +567,14 @@ xen_swiotlb_map_sg_attrs(struct device *
 				sg_dma_len(sgl) = 0;
 				return 0;
 			}
+			dev_addr = xen_phys_to_bus(map);
 			xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT),
 						dev_addr,
 						map & ~PAGE_MASK,
 						sg->length,
 						dir,
 						attrs);
-			sg->dma_address = xen_phys_to_bus(map);
+			sg->dma_address = dev_addr;
 		} else {
 			/* we are not interested in the dma_addr returned by
 			 * xen_dma_map_page, only in the potential cache flushes executed
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/xen-acpi-processor.c linux-libre-4.9.52-gnu/drivers/xen/xen-acpi-processor.c
--- linux-libre-4.9-gnu/drivers/xen/xen-acpi-processor.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/xen-acpi-processor.c	2017-09-27 08:40:05.000000000 -0400
@@ -27,10 +27,10 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/types.h>
+#include <linux/syscore_ops.h>
 #include <linux/acpi.h>
 #include <acpi/processor.h>
 #include <xen/xen.h>
-#include <xen/xen-ops.h>
 #include <xen/interface/platform.h>
 #include <asm/xen/hypercall.h>
 
@@ -466,15 +466,33 @@ static int xen_upload_processor_pm_data(
 	return rc;
 }
 
-static int xen_acpi_processor_resume(struct notifier_block *nb,
-				     unsigned long action, void *data)
+static void xen_acpi_processor_resume_worker(struct work_struct *dummy)
 {
+	int rc;
+
 	bitmap_zero(acpi_ids_done, nr_acpi_bits);
-	return xen_upload_processor_pm_data();
+
+	rc = xen_upload_processor_pm_data();
+	if (rc != 0)
+		pr_info("ACPI data upload failed, error = %d\n", rc);
 }
 
-struct notifier_block xen_acpi_processor_resume_nb = {
-	.notifier_call = xen_acpi_processor_resume,
+static void xen_acpi_processor_resume(void)
+{
+	static DECLARE_WORK(wq, xen_acpi_processor_resume_worker);
+
+	/*
+	 * xen_upload_processor_pm_data() calls non-atomic code.
+	 * However, the context for xen_acpi_processor_resume is syscore
+	 * with only the boot CPU online and in an atomic context.
+	 *
+	 * So defer the upload for some point safer.
+	 */
+	schedule_work(&wq);
+}
+
+static struct syscore_ops xap_syscore_ops = {
+	.resume	= xen_acpi_processor_resume,
 };
 
 static int __init xen_acpi_processor_init(void)
@@ -527,7 +545,7 @@ static int __init xen_acpi_processor_ini
 	if (rc)
 		goto err_unregister;
 
-	xen_resume_notifier_register(&xen_acpi_processor_resume_nb);
+	register_syscore_ops(&xap_syscore_ops);
 
 	return 0;
 err_unregister:
@@ -544,7 +562,7 @@ static void __exit xen_acpi_processor_ex
 {
 	int i;
 
-	xen_resume_notifier_unregister(&xen_acpi_processor_resume_nb);
+	unregister_syscore_ops(&xap_syscore_ops);
 	kfree(acpi_ids_done);
 	kfree(acpi_id_present);
 	kfree(acpi_id_cst_present);
diff -druNp --no-dereference linux-libre-4.9-gnu/drivers/xen/xen-scsiback.c linux-libre-4.9.52-gnu/drivers/xen/xen-scsiback.c
--- linux-libre-4.9-gnu/drivers/xen/xen-scsiback.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/drivers/xen/xen-scsiback.c	2017-09-27 08:40:05.000000000 -0400
@@ -134,9 +134,7 @@ struct vscsibk_pend {
 	struct page *pages[VSCSI_MAX_GRANTS];
 
 	struct se_cmd se_cmd;
-};
 
-struct scsiback_tmr {
 	atomic_t tmr_complete;
 	wait_queue_head_t tmr_wait;
 };
@@ -599,26 +597,20 @@ static void scsiback_device_action(struc
 	struct scsiback_tpg *tpg = pending_req->v2p->tpg;
 	struct scsiback_nexus *nexus = tpg->tpg_nexus;
 	struct se_cmd *se_cmd = &pending_req->se_cmd;
-	struct scsiback_tmr *tmr;
 	u64 unpacked_lun = pending_req->v2p->lun;
 	int rc, err = FAILED;
 
-	tmr = kzalloc(sizeof(struct scsiback_tmr), GFP_KERNEL);
-	if (!tmr) {
-		target_put_sess_cmd(se_cmd);
-		goto err;
-	}
-
-	init_waitqueue_head(&tmr->tmr_wait);
+	init_waitqueue_head(&pending_req->tmr_wait);
 
 	rc = target_submit_tmr(&pending_req->se_cmd, nexus->tvn_se_sess,
 			       &pending_req->sense_buffer[0],
-			       unpacked_lun, tmr, act, GFP_KERNEL,
+			       unpacked_lun, NULL, act, GFP_KERNEL,
 			       tag, TARGET_SCF_ACK_KREF);
 	if (rc)
 		goto err;
 
-	wait_event(tmr->tmr_wait, atomic_read(&tmr->tmr_complete));
+	wait_event(pending_req->tmr_wait,
+		   atomic_read(&pending_req->tmr_complete));
 
 	err = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ?
 		SUCCESS : FAILED;
@@ -626,9 +618,8 @@ static void scsiback_device_action(struc
 	scsiback_do_resp_with_sense(NULL, err, 0, pending_req);
 	transport_generic_free_cmd(&pending_req->se_cmd, 1);
 	return;
+
 err:
-	if (tmr)
-		kfree(tmr);
 	scsiback_do_resp_with_sense(NULL, err, 0, pending_req);
 }
 
@@ -1389,12 +1380,6 @@ static int scsiback_check_stop_free(stru
 static void scsiback_release_cmd(struct se_cmd *se_cmd)
 {
 	struct se_session *se_sess = se_cmd->se_sess;
-	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
-
-	if (se_tmr && se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
-		struct scsiback_tmr *tmr = se_tmr->fabric_tmr_ptr;
-		kfree(tmr);
-	}
 
 	percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag);
 }
@@ -1455,11 +1440,11 @@ static int scsiback_queue_status(struct
 
 static void scsiback_queue_tm_rsp(struct se_cmd *se_cmd)
 {
-	struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
-	struct scsiback_tmr *tmr = se_tmr->fabric_tmr_ptr;
+	struct vscsibk_pend *pending_req = container_of(se_cmd,
+				struct vscsibk_pend, se_cmd);
 
-	atomic_set(&tmr->tmr_complete, 1);
-	wake_up(&tmr->tmr_wait);
+	atomic_set(&pending_req->tmr_complete, 1);
+	wake_up(&pending_req->tmr_wait);
 }
 
 static void scsiback_aborted_task(struct se_cmd *se_cmd)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/9p/acl.c linux-libre-4.9.52-gnu/fs/9p/acl.c
--- linux-libre-4.9-gnu/fs/9p/acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/9p/acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -277,6 +277,7 @@ static int v9fs_xattr_set_acl(const stru
 	case ACL_TYPE_ACCESS:
 		if (acl) {
 			struct iattr iattr;
+			struct posix_acl *old_acl = acl;
 
 			retval = posix_acl_update_mode(inode, &iattr.ia_mode, &acl);
 			if (retval)
@@ -287,6 +288,7 @@ static int v9fs_xattr_set_acl(const stru
 				 * by the mode bits. So don't
 				 * update ACL.
 				 */
+				posix_acl_release(old_acl);
 				value = NULL;
 				size = 0;
 			}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/afs/mntpt.c linux-libre-4.9.52-gnu/fs/afs/mntpt.c
--- linux-libre-4.9-gnu/fs/afs/mntpt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/afs/mntpt.c	2017-09-27 08:40:05.000000000 -0400
@@ -202,7 +202,7 @@ static struct vfsmount *afs_mntpt_do_aut
 
 	/* try and do the mount */
 	_debug("--- attempting mount %s -o %s ---", devname, options);
-	mnt = vfs_kern_mount(&afs_fs_type, 0, devname, options);
+	mnt = vfs_submount(mntpt, &afs_fs_type, devname, options);
 	_debug("--- mount result %p ---", mnt);
 
 	free_page((unsigned long) devname);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/aio.c linux-libre-4.9.52-gnu/fs/aio.c
--- linux-libre-4.9-gnu/fs/aio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/aio.c	2017-09-27 08:40:05.000000000 -0400
@@ -1085,7 +1085,8 @@ static void aio_complete(struct kiocb *k
 		 * Tell lockdep we inherited freeze protection from submission
 		 * thread.
 		 */
-		__sb_writers_acquired(file_inode(file)->i_sb, SB_FREEZE_WRITE);
+		if (S_ISREG(file_inode(file)->i_mode))
+			__sb_writers_acquired(file_inode(file)->i_sb, SB_FREEZE_WRITE);
 		file_end_write(file);
 	}
 
@@ -1492,7 +1493,8 @@ static ssize_t aio_write(struct kiocb *r
 		 * by telling it the lock got released so that it doesn't
 		 * complain about held lock when we return to userspace.
 		 */
-		__sb_writers_release(file_inode(file)->i_sb, SB_FREEZE_WRITE);
+		if (S_ISREG(file_inode(file)->i_mode))
+			__sb_writers_release(file_inode(file)->i_sb, SB_FREEZE_WRITE);
 	}
 	kfree(iovec);
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/autofs4/dev-ioctl.c linux-libre-4.9.52-gnu/fs/autofs4/dev-ioctl.c
--- linux-libre-4.9-gnu/fs/autofs4/dev-ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/autofs4/dev-ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -345,7 +345,7 @@ static int autofs_dev_ioctl_fail(struct
 	int status;
 
 	token = (autofs_wqt_t) param->fail.token;
-	status = param->fail.status ? param->fail.status : -ENOENT;
+	status = param->fail.status < 0 ? param->fail.status : -ENOENT;
 	return autofs4_wait_release(sbi, token, status);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/autofs4/waitq.c linux-libre-4.9.52-gnu/fs/autofs4/waitq.c
--- linux-libre-4.9-gnu/fs/autofs4/waitq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/autofs4/waitq.c	2017-09-27 08:40:05.000000000 -0400
@@ -431,8 +431,8 @@ int autofs4_wait(struct autofs_sb_info *
 		memcpy(&wq->name, &qstr, sizeof(struct qstr));
 		wq->dev = autofs4_get_dev(sbi);
 		wq->ino = autofs4_get_ino(sbi);
-		wq->uid = current_real_cred()->uid;
-		wq->gid = current_real_cred()->gid;
+		wq->uid = current_cred()->uid;
+		wq->gid = current_cred()->gid;
 		wq->pid = pid;
 		wq->tgid = tgid;
 		wq->status = -EINTR; /* Status return if interrupted */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/bad_inode.c linux-libre-4.9.52-gnu/fs/bad_inode.c
--- linux-libre-4.9-gnu/fs/bad_inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/bad_inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -106,6 +106,50 @@ static ssize_t bad_inode_listxattr(struc
 	return -EIO;
 }
 
+static const char *bad_inode_get_link(struct dentry *dentry,
+				      struct inode *inode,
+				      struct delayed_call *done)
+{
+	return ERR_PTR(-EIO);
+}
+
+static struct posix_acl *bad_inode_get_acl(struct inode *inode, int type)
+{
+	return ERR_PTR(-EIO);
+}
+
+static int bad_inode_fiemap(struct inode *inode,
+			    struct fiemap_extent_info *fieinfo, u64 start,
+			    u64 len)
+{
+	return -EIO;
+}
+
+static int bad_inode_update_time(struct inode *inode, struct timespec *time,
+				 int flags)
+{
+	return -EIO;
+}
+
+static int bad_inode_atomic_open(struct inode *inode, struct dentry *dentry,
+				 struct file *file, unsigned int open_flag,
+				 umode_t create_mode, int *opened)
+{
+	return -EIO;
+}
+
+static int bad_inode_tmpfile(struct inode *inode, struct dentry *dentry,
+			     umode_t mode)
+{
+	return -EIO;
+}
+
+static int bad_inode_set_acl(struct inode *inode, struct posix_acl *acl,
+			     int type)
+{
+	return -EIO;
+}
+
 static const struct inode_operations bad_inode_ops =
 {
 	.create		= bad_inode_create,
@@ -118,14 +162,17 @@ static const struct inode_operations bad
 	.mknod		= bad_inode_mknod,
 	.rename		= bad_inode_rename2,
 	.readlink	= bad_inode_readlink,
-	/* follow_link must be no-op, otherwise unmounting this inode
-	   won't work */
-	/* put_link returns void */
-	/* truncate returns void */
 	.permission	= bad_inode_permission,
 	.getattr	= bad_inode_getattr,
 	.setattr	= bad_inode_setattr,
 	.listxattr	= bad_inode_listxattr,
+	.get_link	= bad_inode_get_link,
+	.get_acl	= bad_inode_get_acl,
+	.fiemap		= bad_inode_fiemap,
+	.update_time	= bad_inode_update_time,
+	.atomic_open	= bad_inode_atomic_open,
+	.tmpfile	= bad_inode_tmpfile,
+	.set_acl	= bad_inode_set_acl,
 };
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/binfmt_elf.c linux-libre-4.9.52-gnu/fs/binfmt_elf.c
--- linux-libre-4.9-gnu/fs/binfmt_elf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/binfmt_elf.c	2017-09-27 08:40:05.000000000 -0400
@@ -911,17 +911,60 @@ static int load_elf_binary(struct linux_
 		elf_flags = MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE;
 
 		vaddr = elf_ppnt->p_vaddr;
+		/*
+		 * If we are loading ET_EXEC or we have already performed
+		 * the ET_DYN load_addr calculations, proceed normally.
+		 */
 		if (loc->elf_ex.e_type == ET_EXEC || load_addr_set) {
 			elf_flags |= MAP_FIXED;
 		} else if (loc->elf_ex.e_type == ET_DYN) {
-			/* Try and get dynamic programs out of the way of the
-			 * default mmap base, as well as whatever program they
-			 * might try to exec.  This is because the brk will
-			 * follow the loader, and is not movable.  */
-			load_bias = ELF_ET_DYN_BASE - vaddr;
-			if (current->flags & PF_RANDOMIZE)
-				load_bias += arch_mmap_rnd();
-			load_bias = ELF_PAGESTART(load_bias);
+			/*
+			 * This logic is run once for the first LOAD Program
+			 * Header for ET_DYN binaries to calculate the
+			 * randomization (load_bias) for all the LOAD
+			 * Program Headers, and to calculate the entire
+			 * size of the ELF mapping (total_size). (Note that
+			 * load_addr_set is set to true later once the
+			 * initial mapping is performed.)
+			 *
+			 * There are effectively two types of ET_DYN
+			 * binaries: programs (i.e. PIE: ET_DYN with INTERP)
+			 * and loaders (ET_DYN without INTERP, since they
+			 * _are_ the ELF interpreter). The loaders must
+			 * be loaded away from programs since the program
+			 * may otherwise collide with the loader (especially
+			 * for ET_EXEC which does not have a randomized
+			 * position). For example to handle invocations of
+			 * "./ld.so someprog" to test out a new version of
+			 * the loader, the subsequent program that the
+			 * loader loads must avoid the loader itself, so
+			 * they cannot share the same load range. Sufficient
+			 * room for the brk must be allocated with the
+			 * loader as well, since brk must be available with
+			 * the loader.
+			 *
+			 * Therefore, programs are loaded offset from
+			 * ELF_ET_DYN_BASE and loaders are loaded into the
+			 * independently randomized mmap region (0 load_bias
+			 * without MAP_FIXED).
+			 */
+			if (elf_interpreter) {
+				load_bias = ELF_ET_DYN_BASE;
+				if (current->flags & PF_RANDOMIZE)
+					load_bias += arch_mmap_rnd();
+				elf_flags |= MAP_FIXED;
+			} else
+				load_bias = 0;
+
+			/*
+			 * Since load_bias is used for all subsequent loading
+			 * calculations, we must lower it by the first vaddr
+			 * so that the remaining calculations based on the
+			 * ELF vaddrs will be correctly offset. The result
+			 * is then page aligned.
+			 */
+			load_bias = ELF_PAGESTART(load_bias - vaddr);
+
 			total_size = total_mapping_size(elf_phdata,
 							loc->elf_ex.e_phnum);
 			if (!total_size) {
@@ -2296,6 +2339,7 @@ static int elf_core_dump(struct coredump
 				goto end_coredump;
 		}
 	}
+	dump_truncate(cprm);
 
 	if (!elf_core_write_extra_data(cprm))
 		goto end_coredump;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/block_dev.c linux-libre-4.9.52-gnu/fs/block_dev.c
--- linux-libre-4.9-gnu/fs/block_dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/block_dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -102,12 +102,11 @@ void invalidate_bdev(struct block_device
 {
 	struct address_space *mapping = bdev->bd_inode->i_mapping;
 
-	if (mapping->nrpages == 0)
-		return;
-
-	invalidate_bh_lrus();
-	lru_add_drain_all();	/* make sure all lru add caches are flushed */
-	invalidate_mapping_pages(mapping, 0, -1);
+	if (mapping->nrpages) {
+		invalidate_bh_lrus();
+		lru_add_drain_all();	/* make sure all lru add caches are flushed */
+		invalidate_mapping_pages(mapping, 0, -1);
+	}
 	/* 99% of the time, we don't need to flush the cleancache on the bdev.
 	 * But, for the strange corners, lets be cautious
 	 */
@@ -714,7 +713,7 @@ struct block_device *bdget(dev_t dev)
 		bdev->bd_contains = NULL;
 		bdev->bd_super = NULL;
 		bdev->bd_inode = inode;
-		bdev->bd_block_size = (1 << inode->i_blkbits);
+		bdev->bd_block_size = i_blocksize(inode);
 		bdev->bd_part_count = 0;
 		bdev->bd_invalidated = 0;
 		inode->i_mode = S_IFBLK;
@@ -832,7 +831,7 @@ static bool bd_may_claim(struct block_de
 		return true;	 /* already a holder */
 	else if (bdev->bd_holder != NULL)
 		return false; 	 /* held by someone else */
-	else if (bdev->bd_contains == bdev)
+	else if (whole == bdev)
 		return true;  	 /* is a whole device which isn't held */
 
 	else if (whole->bd_holder == bd_may_claim)
@@ -1165,7 +1164,6 @@ int revalidate_disk(struct gendisk *disk
 
 	if (disk->fops->revalidate_disk)
 		ret = disk->fops->revalidate_disk(disk);
-	blk_integrity_revalidate(disk);
 	bdev = bdget_disk(disk, 0);
 	if (!bdev)
 		return ret;
@@ -1950,6 +1948,7 @@ void iterate_bdevs(void (*func)(struct b
 	spin_lock(&blockdev_superblock->s_inode_list_lock);
 	list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list) {
 		struct address_space *mapping = inode->i_mapping;
+		struct block_device *bdev;
 
 		spin_lock(&inode->i_lock);
 		if (inode->i_state & (I_FREEING|I_WILL_FREE|I_NEW) ||
@@ -1970,8 +1969,12 @@ void iterate_bdevs(void (*func)(struct b
 		 */
 		iput(old_inode);
 		old_inode = inode;
+		bdev = I_BDEV(inode);
 
-		func(I_BDEV(inode), arg);
+		mutex_lock(&bdev->bd_mutex);
+		if (bdev->bd_openers)
+			func(bdev, arg);
+		mutex_unlock(&bdev->bd_mutex);
 
 		spin_lock(&blockdev_superblock->s_inode_list_lock);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/acl.c linux-libre-4.9.52-gnu/fs/btrfs/acl.c
--- linux-libre-4.9-gnu/fs/btrfs/acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -78,12 +78,6 @@ static int __btrfs_set_acl(struct btrfs_
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			ret = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (ret)
-				return ret;
-		}
-		ret = 0;
 		break;
 	case ACL_TYPE_DEFAULT:
 		if (!S_ISDIR(inode->i_mode))
@@ -119,6 +113,13 @@ out:
 
 int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 {
+	int ret;
+
+	if (type == ACL_TYPE_ACCESS && acl) {
+		ret = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+		if (ret)
+			return ret;
+	}
 	return __btrfs_set_acl(NULL, inode, acl, type);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/async-thread.c linux-libre-4.9.52-gnu/fs/btrfs/async-thread.c
--- linux-libre-4.9-gnu/fs/btrfs/async-thread.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/async-thread.c	2017-09-27 08:40:05.000000000 -0400
@@ -86,6 +86,20 @@ btrfs_work_owner(struct btrfs_work *work
 	return work->wq->fs_info;
 }
 
+bool btrfs_workqueue_normal_congested(struct btrfs_workqueue *wq)
+{
+	/*
+	 * We could compare wq->normal->pending with num_online_cpus()
+	 * to support "thresh == NO_THRESHOLD" case, but it requires
+	 * moving up atomic_inc/dec in thresh_queue/exec_hook. Let's
+	 * postpone it until someone needs the support of that case.
+	 */
+	if (wq->normal->thresh == NO_THRESHOLD)
+		return false;
+
+	return atomic_read(&wq->normal->pending) > wq->normal->thresh * 2;
+}
+
 BTRFS_WORK_HELPER(worker_helper);
 BTRFS_WORK_HELPER(delalloc_helper);
 BTRFS_WORK_HELPER(flush_delalloc_helper);
@@ -259,6 +273,8 @@ static void run_ordered_work(struct __bt
 	unsigned long flags;
 
 	while (1) {
+		void *wtag;
+
 		spin_lock_irqsave(lock, flags);
 		if (list_empty(list))
 			break;
@@ -285,11 +301,13 @@ static void run_ordered_work(struct __bt
 		spin_unlock_irqrestore(lock, flags);
 
 		/*
-		 * we don't want to call the ordered free functions
-		 * with the lock held though
+		 * We don't want to call the ordered free functions with the
+		 * lock held though. Save the work as tag for the trace event,
+		 * because the callback could free the structure.
 		 */
+		wtag = work;
 		work->ordered_free(work);
-		trace_btrfs_all_work_done(work);
+		trace_btrfs_all_work_done(wq->fs_info, wtag);
 	}
 	spin_unlock_irqrestore(lock, flags);
 }
@@ -297,6 +315,7 @@ static void run_ordered_work(struct __bt
 static void normal_work_helper(struct btrfs_work *work)
 {
 	struct __btrfs_workqueue *wq;
+	void *wtag;
 	int need_order = 0;
 
 	/*
@@ -310,6 +329,8 @@ static void normal_work_helper(struct bt
 	if (work->ordered_func)
 		need_order = 1;
 	wq = work->wq;
+	/* Safe for tracepoints in case work gets freed by the callback */
+	wtag = work;
 
 	trace_btrfs_work_sched(work);
 	thresh_exec_hook(wq);
@@ -319,7 +340,7 @@ static void normal_work_helper(struct bt
 		run_ordered_work(wq);
 	}
 	if (!need_order)
-		trace_btrfs_all_work_done(work);
+		trace_btrfs_all_work_done(wq->fs_info, wtag);
 }
 
 void btrfs_init_work(struct btrfs_work *work, btrfs_work_func_t uniq_func,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/async-thread.h linux-libre-4.9.52-gnu/fs/btrfs/async-thread.h
--- linux-libre-4.9-gnu/fs/btrfs/async-thread.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/async-thread.h	2017-09-27 08:40:05.000000000 -0400
@@ -84,4 +84,5 @@ void btrfs_workqueue_set_max(struct btrf
 void btrfs_set_work_high_priority(struct btrfs_work *work);
 struct btrfs_fs_info *btrfs_work_owner(struct btrfs_work *work);
 struct btrfs_fs_info *btrfs_workqueue_owner(struct __btrfs_workqueue *wq);
+bool btrfs_workqueue_normal_congested(struct btrfs_workqueue *wq);
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/ctree.h linux-libre-4.9.52-gnu/fs/btrfs/ctree.h
--- linux-libre-4.9-gnu/fs/btrfs/ctree.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/ctree.h	2017-09-27 08:40:05.000000000 -0400
@@ -2210,6 +2210,8 @@ btrfs_disk_balance_args_to_cpu(struct bt
 	cpu->target = le64_to_cpu(disk->target);
 	cpu->flags = le64_to_cpu(disk->flags);
 	cpu->limit = le64_to_cpu(disk->limit);
+	cpu->stripes_min = le32_to_cpu(disk->stripes_min);
+	cpu->stripes_max = le32_to_cpu(disk->stripes_max);
 }
 
 static inline void
@@ -2228,6 +2230,8 @@ btrfs_cpu_balance_args_to_disk(struct bt
 	disk->target = cpu_to_le64(cpu->target);
 	disk->flags = cpu_to_le64(cpu->flags);
 	disk->limit = cpu_to_le64(cpu->limit);
+	disk->stripes_min = cpu_to_le32(cpu->stripes_min);
+	disk->stripes_max = cpu_to_le32(cpu->stripes_max);
 }
 
 /* struct btrfs_super_block */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/delayed-inode.c linux-libre-4.9.52-gnu/fs/btrfs/delayed-inode.c
--- linux-libre-4.9-gnu/fs/btrfs/delayed-inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/delayed-inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -1353,7 +1353,8 @@ release_path:
 	total_done++;
 
 	btrfs_release_prepared_delayed_node(delayed_node);
-	if (async_work->nr == 0 || total_done < async_work->nr)
+	if ((async_work->nr == 0 && total_done < BTRFS_DELAYED_WRITEBACK) ||
+	    total_done < async_work->nr)
 		goto again;
 
 free_path:
@@ -1369,7 +1370,8 @@ static int btrfs_wq_run_delayed_node(str
 {
 	struct btrfs_async_delayed_work *async_work;
 
-	if (atomic_read(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND)
+	if (atomic_read(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND ||
+	    btrfs_workqueue_normal_congested(fs_info->delayed_workers))
 		return 0;
 
 	async_work = kmalloc(sizeof(*async_work), GFP_NOFS);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/disk-io.c linux-libre-4.9.52-gnu/fs/btrfs/disk-io.c
--- linux-libre-4.9-gnu/fs/btrfs/disk-io.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/disk-io.c	2017-09-27 08:40:05.000000000 -0400
@@ -559,7 +559,15 @@ static noinline int check_leaf(struct bt
 	u32 nritems = btrfs_header_nritems(leaf);
 	int slot;
 
-	if (nritems == 0) {
+	/*
+	 * Extent buffers from a relocation tree have a owner field that
+	 * corresponds to the subvolume tree they are based on. So just from an
+	 * extent buffer alone we can not find out what is the id of the
+	 * corresponding subvolume tree, so we can not figure out if the extent
+	 * buffer corresponds to the root of the relocation tree or not. So skip
+	 * this check for relocation trees.
+	 */
+	if (nritems == 0 && !btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_RELOC)) {
 		struct btrfs_root *check_root;
 
 		key.objectid = btrfs_header_owner(leaf);
@@ -572,17 +580,24 @@ static noinline int check_leaf(struct bt
 		 * open_ctree() some roots has not yet been set up.
 		 */
 		if (!IS_ERR_OR_NULL(check_root)) {
+			struct extent_buffer *eb;
+
+			eb = btrfs_root_node(check_root);
 			/* if leaf is the root, then it's fine */
-			if (leaf->start !=
-			    btrfs_root_bytenr(&check_root->root_item)) {
+			if (leaf != eb) {
 				CORRUPT("non-root leaf's nritems is 0",
-					leaf, root, 0);
+					leaf, check_root, 0);
+				free_extent_buffer(eb);
 				return -EIO;
 			}
+			free_extent_buffer(eb);
 		}
 		return 0;
 	}
 
+	if (nritems == 0)
+		return 0;
+
 	/* Check the 0 item */
 	if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) !=
 	    BTRFS_LEAF_DATA_SIZE(root)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/extent-tree.c linux-libre-4.9.52-gnu/fs/btrfs/extent-tree.c
--- linux-libre-4.9-gnu/fs/btrfs/extent-tree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/extent-tree.c	2017-09-27 08:40:05.000000000 -0400
@@ -2537,11 +2537,11 @@ static noinline int __btrfs_run_delayed_
 		if (ref && ref->seq &&
 		    btrfs_check_delayed_seq(fs_info, delayed_refs, ref->seq)) {
 			spin_unlock(&locked_ref->lock);
-			btrfs_delayed_ref_unlock(locked_ref);
 			spin_lock(&delayed_refs->lock);
 			locked_ref->processing = 0;
 			delayed_refs->num_heads_ready++;
 			spin_unlock(&delayed_refs->lock);
+			btrfs_delayed_ref_unlock(locked_ref);
 			locked_ref = NULL;
 			cond_resched();
 			count++;
@@ -2587,7 +2587,10 @@ static noinline int __btrfs_run_delayed_
 					 */
 					if (must_insert_reserved)
 						locked_ref->must_insert_reserved = 1;
+					spin_lock(&delayed_refs->lock);
 					locked_ref->processing = 0;
+					delayed_refs->num_heads_ready++;
+					spin_unlock(&delayed_refs->lock);
 					btrfs_debug(fs_info,
 						    "run_delayed_extent_op returned %d",
 						    ret);
@@ -3981,6 +3984,7 @@ static int update_space_info(struct btrf
 				    info->space_info_kobj, "%s",
 				    alloc_name(found->flags));
 	if (ret) {
+		percpu_counter_destroy(&found->total_bytes_pinned);
 		kfree(found);
 		return ret;
 	}
@@ -4755,10 +4759,6 @@ skip_async:
 		else
 			flush = BTRFS_RESERVE_NO_FLUSH;
 		spin_lock(&space_info->lock);
-		if (can_overcommit(root, space_info, orig, flush)) {
-			spin_unlock(&space_info->lock);
-			break;
-		}
 		if (list_empty(&space_info->tickets) &&
 		    list_empty(&space_info->priority_tickets)) {
 			spin_unlock(&space_info->lock);
@@ -7397,7 +7397,8 @@ btrfs_lock_cluster(struct btrfs_block_gr
 
 		spin_unlock(&cluster->refill_lock);
 
-		down_read(&used_bg->data_rwsem);
+		/* We should only have one-level nested. */
+		down_read_nested(&used_bg->data_rwsem, SINGLE_DEPTH_NESTING);
 
 		spin_lock(&cluster->refill_lock);
 		if (used_bg == cluster->block_group)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/file.c linux-libre-4.9.52-gnu/fs/btrfs/file.c
--- linux-libre-4.9-gnu/fs/btrfs/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -2842,7 +2842,7 @@ static long btrfs_fallocate(struct file
 		if (!ret)
 			ret = btrfs_prealloc_file_range(inode, mode,
 					range->start,
-					range->len, 1 << inode->i_blkbits,
+					range->len, i_blocksize(inode),
 					offset + len, &alloc_hint);
 		else
 			btrfs_free_reserved_data_space(inode, range->start,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/hash.c linux-libre-4.9.52-gnu/fs/btrfs/hash.c
--- linux-libre-4.9-gnu/fs/btrfs/hash.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/hash.c	2017-09-27 08:40:05.000000000 -0400
@@ -38,6 +38,7 @@ u32 btrfs_crc32c(u32 crc, const void *ad
 {
 	SHASH_DESC_ON_STACK(shash, tfm);
 	u32 *ctx = (u32 *)shash_desc_ctx(shash);
+	u32 retval;
 	int err;
 
 	shash->tfm = tfm;
@@ -47,5 +48,7 @@ u32 btrfs_crc32c(u32 crc, const void *ad
 	err = crypto_shash_update(shash, address, length);
 	BUG_ON(err);
 
-	return *ctx;
+	retval = *ctx;
+	barrier_data(ctx);
+	return retval;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/inode.c linux-libre-4.9.52-gnu/fs/btrfs/inode.c
--- linux-libre-4.9-gnu/fs/btrfs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -3819,10 +3819,7 @@ cache_acl:
 		break;
 	case S_IFDIR:
 		inode->i_fop = &btrfs_dir_file_operations;
-		if (root == root->fs_info->tree_root)
-			inode->i_op = &btrfs_dir_ro_inode_operations;
-		else
-			inode->i_op = &btrfs_dir_inode_operations;
+		inode->i_op = &btrfs_dir_inode_operations;
 		break;
 	case S_IFLNK:
 		inode->i_op = &btrfs_symlink_inode_operations;
@@ -4483,8 +4480,19 @@ search_again:
 		if (found_type > min_type) {
 			del_item = 1;
 		} else {
-			if (item_end < new_size)
+			if (item_end < new_size) {
+				/*
+				 * With NO_HOLES mode, for the following mapping
+				 *
+				 * [0-4k][hole][8k-12k]
+				 *
+				 * if truncating isize down to 6k, it ends up
+				 * isize being 8k.
+				 */
+				if (btrfs_fs_incompat(root->fs_info, NO_HOLES))
+					last_size = new_size;
 				break;
+			}
 			if (found_key.offset >= new_size)
 				del_item = 1;
 			else
@@ -5682,6 +5690,7 @@ static struct inode *new_simple_dir(stru
 
 	inode->i_ino = BTRFS_EMPTY_SUBVOL_DIR_OBJECTID;
 	inode->i_op = &btrfs_dir_ro_inode_operations;
+	inode->i_opflags &= ~IOP_XATTR;
 	inode->i_fop = &simple_dir_operations;
 	inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
 	inode->i_mtime = current_time(inode);
@@ -7237,7 +7246,6 @@ static struct extent_map *btrfs_create_d
 	struct extent_map *em = NULL;
 	int ret;
 
-	down_read(&BTRFS_I(inode)->dio_sem);
 	if (type != BTRFS_ORDERED_NOCOW) {
 		em = create_pinned_em(inode, start, len, orig_start,
 				      block_start, block_len, orig_block_len,
@@ -7256,7 +7264,6 @@ static struct extent_map *btrfs_create_d
 		em = ERR_PTR(ret);
 	}
  out:
-	up_read(&BTRFS_I(inode)->dio_sem);
 
 	return em;
 }
@@ -7437,8 +7444,8 @@ bool btrfs_page_exists_in_range(struct i
 	int found = false;
 	void **pagep = NULL;
 	struct page *page = NULL;
-	int start_idx;
-	int end_idx;
+	unsigned long start_idx;
+	unsigned long end_idx;
 
 	start_idx = start >> PAGE_SHIFT;
 
@@ -7641,11 +7648,18 @@ static void adjust_dio_outstanding_exten
 	 * within our reservation, otherwise we need to adjust our inode
 	 * counter appropriately.
 	 */
-	if (dio_data->outstanding_extents) {
+	if (dio_data->outstanding_extents >= num_extents) {
 		dio_data->outstanding_extents -= num_extents;
 	} else {
+		/*
+		 * If dio write length has been split due to no large enough
+		 * contiguous space, we need to compensate our inode counter
+		 * appropriately.
+		 */
+		u64 num_needed = num_extents - dio_data->outstanding_extents;
+
 		spin_lock(&BTRFS_I(inode)->lock);
-		BTRFS_I(inode)->outstanding_extents += num_extents;
+		BTRFS_I(inode)->outstanding_extents += num_needed;
 		spin_unlock(&BTRFS_I(inode)->lock);
 	}
 }
@@ -8709,6 +8723,7 @@ static ssize_t btrfs_direct_IO(struct ki
 		dio_data.unsubmitted_oe_range_start = (u64)offset;
 		dio_data.unsubmitted_oe_range_end = (u64)offset;
 		current->journal_info = &dio_data;
+		down_read(&BTRFS_I(inode)->dio_sem);
 	} else if (test_bit(BTRFS_INODE_READDIO_NEED_LOCK,
 				     &BTRFS_I(inode)->runtime_flags)) {
 		inode_dio_end(inode);
@@ -8721,6 +8736,7 @@ static ssize_t btrfs_direct_IO(struct ki
 				   iter, btrfs_get_blocks_direct, NULL,
 				   btrfs_submit_direct, flags);
 	if (iov_iter_rw(iter) == WRITE) {
+		up_read(&BTRFS_I(inode)->dio_sem);
 		current->journal_info = NULL;
 		if (ret < 0 && ret != -EIOCBQUEUED) {
 			if (dio_data.reserve)
@@ -10587,8 +10603,6 @@ static const struct inode_operations btr
 static const struct inode_operations btrfs_dir_ro_inode_operations = {
 	.lookup		= btrfs_lookup,
 	.permission	= btrfs_permission,
-	.get_acl	= btrfs_get_acl,
-	.set_acl	= btrfs_set_acl,
 	.update_time	= btrfs_update_time,
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/ioctl.c linux-libre-4.9.52-gnu/fs/btrfs/ioctl.c
--- linux-libre-4.9-gnu/fs/btrfs/ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -5648,6 +5648,10 @@ long btrfs_ioctl(struct file *file, unsi
 #ifdef CONFIG_COMPAT
 long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
+	/*
+	 * These all access 32-bit values anyway so no further
+	 * handling is necessary.
+	 */
 	switch (cmd) {
 	case FS_IOC32_GETFLAGS:
 		cmd = FS_IOC_GETFLAGS;
@@ -5658,8 +5662,6 @@ long btrfs_compat_ioctl(struct file *fil
 	case FS_IOC32_GETVERSION:
 		cmd = FS_IOC_GETVERSION;
 		break;
-	default:
-		return -ENOIOCTLCMD;
 	}
 
 	return btrfs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/qgroup.c linux-libre-4.9.52-gnu/fs/btrfs/qgroup.c
--- linux-libre-4.9-gnu/fs/btrfs/qgroup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/qgroup.c	2017-09-27 08:40:05.000000000 -0400
@@ -2335,10 +2335,6 @@ static void btrfs_qgroup_rescan_worker(s
 	int err = -ENOMEM;
 	int ret = 0;
 
-	mutex_lock(&fs_info->qgroup_rescan_lock);
-	fs_info->qgroup_rescan_running = true;
-	mutex_unlock(&fs_info->qgroup_rescan_lock);
-
 	path = btrfs_alloc_path();
 	if (!path)
 		goto out;
@@ -2449,6 +2445,7 @@ qgroup_rescan_init(struct btrfs_fs_info
 		sizeof(fs_info->qgroup_rescan_progress));
 	fs_info->qgroup_rescan_progress.objectid = progress_objectid;
 	init_completion(&fs_info->qgroup_rescan_completion);
+	fs_info->qgroup_rescan_running = true;
 
 	spin_unlock(&fs_info->qgroup_lock);
 	mutex_unlock(&fs_info->qgroup_rescan_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/relocation.c linux-libre-4.9.52-gnu/fs/btrfs/relocation.c
--- linux-libre-4.9-gnu/fs/btrfs/relocation.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/relocation.c	2017-09-27 08:40:05.000000000 -0400
@@ -1395,14 +1395,23 @@ static struct btrfs_root *create_reloc_r
 	root_key.offset = objectid;
 
 	if (root->root_key.objectid == objectid) {
+		u64 commit_root_gen;
+
 		/* called by btrfs_init_reloc_root */
 		ret = btrfs_copy_root(trans, root, root->commit_root, &eb,
 				      BTRFS_TREE_RELOC_OBJECTID);
 		BUG_ON(ret);
-
 		last_snap = btrfs_root_last_snapshot(&root->root_item);
-		btrfs_set_root_last_snapshot(&root->root_item,
-					     trans->transid - 1);
+		/*
+		 * Set the last_snapshot field to the generation of the commit
+		 * root - like this ctree.c:btrfs_block_can_be_shared() behaves
+		 * correctly (returns true) when the relocation root is created
+		 * either inside the critical section of a transaction commit
+		 * (through transaction.c:qgroup_account_snapshot()) and when
+		 * it's created before the transaction commit is started.
+		 */
+		commit_root_gen = btrfs_header_generation(root->commit_root);
+		btrfs_set_root_last_snapshot(&root->root_item, commit_root_gen);
 	} else {
 		/*
 		 * called by btrfs_reloc_post_snapshot_hook.
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/super.c linux-libre-4.9.52-gnu/fs/btrfs/super.c
--- linux-libre-4.9-gnu/fs/btrfs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -1834,6 +1834,8 @@ static int btrfs_remount(struct super_bl
 			goto restore;
 		}
 
+		btrfs_qgroup_rescan_resume(fs_info);
+
 		if (!fs_info->uuid_root) {
 			btrfs_info(fs_info, "creating UUID tree");
 			ret = btrfs_create_uuid_tree(fs_info);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/btrfs/tree-log.c linux-libre-4.9.52-gnu/fs/btrfs/tree-log.c
--- linux-libre-4.9-gnu/fs/btrfs/tree-log.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/btrfs/tree-log.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,6 +37,7 @@
  */
 #define LOG_INODE_ALL 0
 #define LOG_INODE_EXISTS 1
+#define LOG_OTHER_INODE 2
 
 /*
  * directory trouble cases
@@ -1940,12 +1941,11 @@ static noinline int find_dir_range(struc
 next:
 	/* check the next slot in the tree to see if it is a valid item */
 	nritems = btrfs_header_nritems(path->nodes[0]);
+	path->slots[0]++;
 	if (path->slots[0] >= nritems) {
 		ret = btrfs_next_leaf(root, path);
 		if (ret)
 			goto out;
-	} else {
-		path->slots[0]++;
 	}
 
 	btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]);
@@ -4624,7 +4624,7 @@ static int btrfs_log_inode(struct btrfs_
 	if (S_ISDIR(inode->i_mode) ||
 	    (!test_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
 		       &BTRFS_I(inode)->runtime_flags) &&
-	     inode_only == LOG_INODE_EXISTS))
+	     inode_only >= LOG_INODE_EXISTS))
 		max_key.type = BTRFS_XATTR_ITEM_KEY;
 	else
 		max_key.type = (u8)-1;
@@ -4648,7 +4648,13 @@ static int btrfs_log_inode(struct btrfs_
 		return ret;
 	}
 
-	mutex_lock(&BTRFS_I(inode)->log_mutex);
+	if (inode_only == LOG_OTHER_INODE) {
+		inode_only = LOG_INODE_EXISTS;
+		mutex_lock_nested(&BTRFS_I(inode)->log_mutex,
+				  SINGLE_DEPTH_NESTING);
+	} else {
+		mutex_lock(&BTRFS_I(inode)->log_mutex);
+	}
 
 	/*
 	 * a brute force approach to making sure we get the most uptodate
@@ -4800,7 +4806,7 @@ again:
 				 * unpin it.
 				 */
 				err = btrfs_log_inode(trans, root, other_inode,
-						      LOG_INODE_EXISTS,
+						      LOG_OTHER_INODE,
 						      0, LLONG_MAX, ctx);
 				iput(other_inode);
 				if (err)
@@ -5205,6 +5211,7 @@ process_leaf:
 			if (di_key.type == BTRFS_ROOT_ITEM_KEY)
 				continue;
 
+			btrfs_release_path(path);
 			di_inode = btrfs_iget(root->fs_info->sb, &di_key,
 					      root, NULL);
 			if (IS_ERR(di_inode)) {
@@ -5214,13 +5221,12 @@ process_leaf:
 
 			if (btrfs_inode_in_log(di_inode, trans->transid)) {
 				iput(di_inode);
-				continue;
+				break;
 			}
 
 			ctx->log_new_dentries = false;
 			if (type == BTRFS_FT_DIR || type == BTRFS_FT_SYMLINK)
 				log_mode = LOG_INODE_ALL;
-			btrfs_release_path(path);
 			ret = btrfs_log_inode(trans, root, di_inode,
 					      log_mode, 0, LLONG_MAX, ctx);
 			if (!ret &&
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/buffer.c linux-libre-4.9.52-gnu/fs/buffer.c
--- linux-libre-4.9-gnu/fs/buffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/buffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -2353,7 +2353,7 @@ static int cont_expand_zero(struct file
 			    loff_t pos, loff_t *bytes)
 {
 	struct inode *inode = mapping->host;
-	unsigned blocksize = 1 << inode->i_blkbits;
+	unsigned int blocksize = i_blocksize(inode);
 	struct page *page;
 	void *fsdata;
 	pgoff_t index, curidx;
@@ -2433,8 +2433,8 @@ int cont_write_begin(struct file *file,
 			get_block_t *get_block, loff_t *bytes)
 {
 	struct inode *inode = mapping->host;
-	unsigned blocksize = 1 << inode->i_blkbits;
-	unsigned zerofrom;
+	unsigned int blocksize = i_blocksize(inode);
+	unsigned int zerofrom;
 	int err;
 
 	err = cont_expand_zero(file, mapping, pos, bytes);
@@ -2796,7 +2796,7 @@ int nobh_truncate_page(struct address_sp
 	struct buffer_head map_bh;
 	int err;
 
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 	length = offset & (blocksize - 1);
 
 	/* Block boundary? Nothing to do */
@@ -2874,7 +2874,7 @@ int block_truncate_page(struct address_s
 	struct buffer_head *bh;
 	int err;
 
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 	length = offset & (blocksize - 1);
 
 	/* Block boundary? Nothing to do */
@@ -2986,7 +2986,7 @@ sector_t generic_block_bmap(struct addre
 	struct inode *inode = mapping->host;
 	tmp.b_state = 0;
 	tmp.b_blocknr = 0;
-	tmp.b_size = 1 << inode->i_blkbits;
+	tmp.b_size = i_blocksize(inode);
 	get_block(inode, block, &tmp, 0);
 	return tmp.b_blocknr;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/addr.c linux-libre-4.9.52-gnu/fs/ceph/addr.c
--- linux-libre-4.9-gnu/fs/ceph/addr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/addr.c	2017-09-27 08:40:05.000000000 -0400
@@ -188,7 +188,7 @@ static int ceph_releasepage(struct page
 /*
  * read a single page, without unlocking it.
  */
-static int readpage_nounlock(struct file *filp, struct page *page)
+static int ceph_do_readpage(struct file *filp, struct page *page)
 {
 	struct inode *inode = file_inode(filp);
 	struct ceph_inode_info *ci = ceph_inode(inode);
@@ -218,7 +218,7 @@ static int readpage_nounlock(struct file
 
 	err = ceph_readpage_from_fscache(inode, page);
 	if (err == 0)
-		goto out;
+		return -EINPROGRESS;
 
 	dout("readpage inode %p file %p page %p index %lu\n",
 	     inode, filp, page, page->index);
@@ -248,8 +248,11 @@ out:
 
 static int ceph_readpage(struct file *filp, struct page *page)
 {
-	int r = readpage_nounlock(filp, page);
-	unlock_page(page);
+	int r = ceph_do_readpage(filp, page);
+	if (r != -EINPROGRESS)
+		unlock_page(page);
+	else
+		r = 0;
 	return r;
 }
 
@@ -315,7 +318,32 @@ static int start_read(struct inode *inod
 	struct page **pages;
 	pgoff_t next_index;
 	int nr_pages = 0;
-	int ret;
+	int got = 0;
+	int ret = 0;
+
+	if (!current->journal_info) {
+		/* caller of readpages does not hold buffer and read caps
+		 * (fadvise, madvise and readahead cases) */
+		int want = CEPH_CAP_FILE_CACHE;
+		ret = ceph_try_get_caps(ci, CEPH_CAP_FILE_RD, want, &got);
+		if (ret < 0) {
+			dout("start_read %p, error getting cap\n", inode);
+		} else if (!(got & want)) {
+			dout("start_read %p, no cache cap\n", inode);
+			ret = 0;
+		}
+		if (ret <= 0) {
+			if (got)
+				ceph_put_cap_refs(ci, got);
+			while (!list_empty(page_list)) {
+				page = list_entry(page_list->prev,
+						  struct page, lru);
+				list_del(&page->lru);
+				put_page(page);
+			}
+			return ret;
+		}
+	}
 
 	off = (u64) page_offset(page);
 
@@ -338,15 +366,18 @@ static int start_read(struct inode *inod
 				    CEPH_OSD_FLAG_READ, NULL,
 				    ci->i_truncate_seq, ci->i_truncate_size,
 				    false);
-	if (IS_ERR(req))
-		return PTR_ERR(req);
+	if (IS_ERR(req)) {
+		ret = PTR_ERR(req);
+		goto out;
+	}
 
 	/* build page vector */
 	nr_pages = calc_pages_for(0, len);
 	pages = kmalloc(sizeof(*pages) * nr_pages, GFP_KERNEL);
-	ret = -ENOMEM;
-	if (!pages)
-		goto out;
+	if (!pages) {
+		ret = -ENOMEM;
+		goto out_put;
+	}
 	for (i = 0; i < nr_pages; ++i) {
 		page = list_entry(page_list->prev, struct page, lru);
 		BUG_ON(PageLocked(page));
@@ -363,6 +394,7 @@ static int start_read(struct inode *inod
 			nr_pages = i;
 			if (nr_pages > 0) {
 				len = nr_pages << PAGE_SHIFT;
+				osd_req_op_extent_update(req, 0, len);
 				break;
 			}
 			goto out_pages;
@@ -378,6 +410,12 @@ static int start_read(struct inode *inod
 	if (ret < 0)
 		goto out_pages;
 	ceph_osdc_put_request(req);
+
+	/* After adding locked pages to page cache, the inode holds cache cap.
+	 * So we can drop our cap refs. */
+	if (got)
+		ceph_put_cap_refs(ci, got);
+
 	return nr_pages;
 
 out_pages:
@@ -386,8 +424,11 @@ out_pages:
 		unlock_page(pages[i]);
 	}
 	ceph_put_page_vector(pages, nr_pages, false);
-out:
+out_put:
 	ceph_osdc_put_request(req);
+out:
+	if (got)
+		ceph_put_cap_refs(ci, got);
 	return ret;
 }
 
@@ -424,7 +465,6 @@ static int ceph_readpages(struct file *f
 		rc = start_read(inode, page_list, max);
 		if (rc < 0)
 			goto out;
-		BUG_ON(rc == 0);
 	}
 out:
 	ceph_fscache_readpages_cancel(inode, page_list);
@@ -708,7 +748,7 @@ static int ceph_writepages_start(struct
 	struct pagevec pvec;
 	int done = 0;
 	int rc = 0;
-	unsigned wsize = 1 << inode->i_blkbits;
+	unsigned int wsize = i_blocksize(inode);
 	struct ceph_osd_request *req = NULL;
 	int do_sync = 0;
 	loff_t snap_size, i_size;
@@ -1198,7 +1238,7 @@ retry_locked:
 			goto retry_locked;
 		r = writepage_nounlock(page, NULL);
 		if (r < 0)
-			goto fail_nosnap;
+			goto fail_unlock;
 		goto retry_locked;
 	}
 
@@ -1226,11 +1266,14 @@ retry_locked:
 	}
 
 	/* we need to read it. */
-	r = readpage_nounlock(file, page);
-	if (r < 0)
-		goto fail_nosnap;
+	r = ceph_do_readpage(file, page);
+	if (r < 0) {
+		if (r == -EINPROGRESS)
+			return -EAGAIN;
+		goto fail_unlock;
+	}
 	goto retry_locked;
-fail_nosnap:
+fail_unlock:
 	unlock_page(page);
 	return r;
 }
@@ -1371,9 +1414,11 @@ static int ceph_filemap_fault(struct vm_
 	     inode, off, (size_t)PAGE_SIZE, ceph_cap_string(got));
 
 	if ((got & (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO)) ||
-	    ci->i_inline_version == CEPH_INLINE_NONE)
+	    ci->i_inline_version == CEPH_INLINE_NONE) {
+		current->journal_info = vma->vm_file;
 		ret = filemap_fault(vma, vmf);
-	else
+		current->journal_info = NULL;
+	} else
 		ret = -EAGAIN;
 
 	dout("filemap_fault %p %llu~%zd dropping cap refs on %s ret %d\n",
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/cache.c linux-libre-4.9.52-gnu/fs/ceph/cache.c
--- linux-libre-4.9-gnu/fs/ceph/cache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/cache.c	2017-09-27 08:40:05.000000000 -0400
@@ -240,13 +240,7 @@ void ceph_fscache_file_set_cookie(struct
 	}
 }
 
-static void ceph_vfs_readpage_complete(struct page *page, void *data, int error)
-{
-	if (!error)
-		SetPageUptodate(page);
-}
-
-static void ceph_vfs_readpage_complete_unlock(struct page *page, void *data, int error)
+static void ceph_readpage_from_fscache_complete(struct page *page, void *data, int error)
 {
 	if (!error)
 		SetPageUptodate(page);
@@ -274,7 +268,7 @@ int ceph_readpage_from_fscache(struct in
 		return -ENOBUFS;
 
 	ret = fscache_read_or_alloc_page(ci->fscache, page,
-					 ceph_vfs_readpage_complete, NULL,
+					 ceph_readpage_from_fscache_complete, NULL,
 					 GFP_KERNEL);
 
 	switch (ret) {
@@ -303,7 +297,7 @@ int ceph_readpages_from_fscache(struct i
 		return -ENOBUFS;
 
 	ret = fscache_read_or_alloc_pages(ci->fscache, mapping, pages, nr_pages,
-					  ceph_vfs_readpage_complete_unlock,
+					  ceph_readpage_from_fscache_complete,
 					  NULL, mapping_gfp_mask(mapping));
 
 	switch (ret) {
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/caps.c linux-libre-4.9.52-gnu/fs/ceph/caps.c
--- linux-libre-4.9-gnu/fs/ceph/caps.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/caps.c	2017-09-27 08:40:05.000000000 -0400
@@ -2479,6 +2479,27 @@ static void check_max_size(struct inode
 		ceph_check_caps(ci, CHECK_CAPS_AUTHONLY, NULL);
 }
 
+int ceph_try_get_caps(struct ceph_inode_info *ci, int need, int want, int *got)
+{
+	int ret, err = 0;
+
+	BUG_ON(need & ~CEPH_CAP_FILE_RD);
+	BUG_ON(want & ~(CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO));
+	ret = ceph_pool_perm_check(ci, need);
+	if (ret < 0)
+		return ret;
+
+	ret = try_get_cap_refs(ci, need, want, 0, true, got, &err);
+	if (ret) {
+		if (err == -EAGAIN) {
+			ret = 0;
+		} else if (err < 0) {
+			ret = err;
+		}
+	}
+	return ret;
+}
+
 /*
  * Wait for caps, and take cap references.  If we can't get a WR cap
  * due to a small max_size, make sure we check_max_size (and possibly
@@ -2507,9 +2528,20 @@ int ceph_get_caps(struct ceph_inode_info
 			if (err < 0)
 				ret = err;
 		} else {
-			ret = wait_event_interruptible(ci->i_cap_wq,
-					try_get_cap_refs(ci, need, want, endoff,
-							 true, &_got, &err));
+			DEFINE_WAIT_FUNC(wait, woken_wake_function);
+			add_wait_queue(&ci->i_cap_wq, &wait);
+
+			while (!try_get_cap_refs(ci, need, want, endoff,
+						 true, &_got, &err)) {
+				if (signal_pending(current)) {
+					ret = -ERESTARTSYS;
+					break;
+				}
+				wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
+			}
+
+			remove_wait_queue(&ci->i_cap_wq, &wait);
+
 			if (err == -EAGAIN)
 				continue;
 			if (err < 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/dir.c linux-libre-4.9.52-gnu/fs/ceph/dir.c
--- linux-libre-4.9-gnu/fs/ceph/dir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/dir.c	2017-09-27 08:40:05.000000000 -0400
@@ -292,6 +292,11 @@ out:
 		if (ret < 0)
 			err = ret;
 		dput(last);
+		/* last_name no longer match cache index */
+		if (fi->readdir_cache_idx >= 0) {
+			fi->readdir_cache_idx = -1;
+			fi->dir_release_count = 0;
+		}
 	}
 	return err;
 }
@@ -315,7 +320,7 @@ static int ceph_readdir(struct file *fil
 	struct ceph_mds_client *mdsc = fsc->mdsc;
 	int i;
 	int err;
-	u32 ftype;
+	unsigned frag = -1;
 	struct ceph_mds_reply_info_parsed *rinfo;
 
 	dout("readdir %p file %p pos %llx\n", inode, file, ctx->pos);
@@ -362,7 +367,6 @@ more:
 	/* do we have the correct frag content buffered? */
 	if (need_send_readdir(fi, ctx->pos)) {
 		struct ceph_mds_request *req;
-		unsigned frag;
 		int op = ceph_snap(inode) == CEPH_SNAPDIR ?
 			CEPH_MDS_OP_LSSNAP : CEPH_MDS_OP_READDIR;
 
@@ -373,8 +377,11 @@ more:
 		}
 
 		if (is_hash_order(ctx->pos)) {
-			frag = ceph_choose_frag(ci, fpos_hash(ctx->pos),
-						NULL, NULL);
+			/* fragtree isn't always accurate. choose frag
+			 * based on previous reply when possible. */
+			if (frag == (unsigned)-1)
+				frag = ceph_choose_frag(ci, fpos_hash(ctx->pos),
+							NULL, NULL);
 		} else {
 			frag = fpos_frag(ctx->pos);
 		}
@@ -497,6 +504,7 @@ more:
 		struct ceph_mds_reply_dir_entry *rde = rinfo->dir_entries + i;
 		struct ceph_vino vino;
 		ino_t ino;
+		u32 ftype;
 
 		BUG_ON(rde->offset < ctx->pos);
 
@@ -519,15 +527,17 @@ more:
 		ctx->pos++;
 	}
 
+	ceph_mdsc_put_request(fi->last_readdir);
+	fi->last_readdir = NULL;
+
 	if (fi->next_offset > 2) {
-		ceph_mdsc_put_request(fi->last_readdir);
-		fi->last_readdir = NULL;
+		frag = fi->frag;
 		goto more;
 	}
 
 	/* more frags? */
 	if (!ceph_frag_is_rightmost(fi->frag)) {
-		unsigned frag = ceph_frag_next(fi->frag);
+		frag = ceph_frag_next(fi->frag);
 		if (is_hash_order(ctx->pos)) {
 			loff_t new_pos = ceph_make_fpos(ceph_frag_value(frag),
 							fi->next_offset, true);
@@ -1255,7 +1265,8 @@ static int ceph_d_revalidate(struct dent
 		struct ceph_mds_client *mdsc =
 			ceph_sb_to_client(dir->i_sb)->mdsc;
 		struct ceph_mds_request *req;
-		int op, mask, err;
+		int op, err;
+		u32 mask;
 
 		if (flags & LOOKUP_RCU)
 			return -ECHILD;
@@ -1270,7 +1281,7 @@ static int ceph_d_revalidate(struct dent
 			mask = CEPH_STAT_CAP_INODE | CEPH_CAP_AUTH_SHARED;
 			if (ceph_security_xattr_wanted(dir))
 				mask |= CEPH_CAP_XATTR_SHARED;
-			req->r_args.getattr.mask = mask;
+			req->r_args.getattr.mask = cpu_to_le32(mask);
 
 			err = ceph_mdsc_do_request(mdsc, NULL, req);
 			switch (err) {
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/file.c linux-libre-4.9.52-gnu/fs/ceph/file.c
--- linux-libre-4.9-gnu/fs/ceph/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -1249,8 +1249,9 @@ again:
 		dout("aio_read %p %llx.%llx %llu~%u got cap refs on %s\n",
 		     inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len,
 		     ceph_cap_string(got));
-
+		current->journal_info = filp;
 		ret = generic_file_read_iter(iocb, to);
+		current->journal_info = NULL;
 	}
 	dout("aio_read %p %llx.%llx dropping cap refs on %s = %d\n",
 	     inode, ceph_vinop(inode), ceph_cap_string(got), (int)ret);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/inode.c linux-libre-4.9.52-gnu/fs/ceph/inode.c
--- linux-libre-4.9-gnu/fs/ceph/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -305,7 +305,8 @@ static int frag_tree_split_cmp(const voi
 {
 	struct ceph_frag_tree_split *ls = (struct ceph_frag_tree_split*)l;
 	struct ceph_frag_tree_split *rs = (struct ceph_frag_tree_split*)r;
-	return ceph_frag_compare(ls->frag, rs->frag);
+	return ceph_frag_compare(le32_to_cpu(ls->frag),
+				 le32_to_cpu(rs->frag));
 }
 
 static bool is_frag_child(u32 f, struct ceph_inode_frag *frag)
@@ -2079,11 +2080,6 @@ int __ceph_setattr(struct inode *inode,
 	if (inode_dirty_flags)
 		__mark_inode_dirty(inode, inode_dirty_flags);
 
-	if (ia_valid & ATTR_MODE) {
-		err = posix_acl_chmod(inode, attr->ia_mode);
-		if (err)
-			goto out_put;
-	}
 
 	if (mask) {
 		req->r_inode = inode;
@@ -2097,13 +2093,11 @@ int __ceph_setattr(struct inode *inode,
 	     ceph_cap_string(dirtied), mask);
 
 	ceph_mdsc_put_request(req);
-	if (mask & CEPH_SETATTR_SIZE)
-		__ceph_do_pending_vmtruncate(inode);
-	ceph_free_cap_flush(prealloc_cf);
-	return err;
-out_put:
-	ceph_mdsc_put_request(req);
 	ceph_free_cap_flush(prealloc_cf);
+
+	if (err >= 0 && (mask & CEPH_SETATTR_SIZE))
+		__ceph_do_pending_vmtruncate(inode);
+
 	return err;
 }
 
@@ -2122,7 +2116,12 @@ int ceph_setattr(struct dentry *dentry,
 	if (err != 0)
 		return err;
 
-	return __ceph_setattr(inode, attr);
+	err = __ceph_setattr(inode, attr);
+
+	if (err >= 0 && (attr->ia_valid & ATTR_MODE))
+		err = posix_acl_chmod(inode, attr->ia_mode);
+
+	return err;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/mds_client.c linux-libre-4.9.52-gnu/fs/ceph/mds_client.c
--- linux-libre-4.9-gnu/fs/ceph/mds_client.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/mds_client.c	2017-09-27 08:40:05.000000000 -0400
@@ -288,12 +288,13 @@ static int parse_reply_info_extra(void *
 				  struct ceph_mds_reply_info_parsed *info,
 				  u64 features)
 {
-	if (info->head->op == CEPH_MDS_OP_GETFILELOCK)
+	u32 op = le32_to_cpu(info->head->op);
+
+	if (op == CEPH_MDS_OP_GETFILELOCK)
 		return parse_reply_info_filelock(p, end, info, features);
-	else if (info->head->op == CEPH_MDS_OP_READDIR ||
-		 info->head->op == CEPH_MDS_OP_LSSNAP)
+	else if (op == CEPH_MDS_OP_READDIR || op == CEPH_MDS_OP_LSSNAP)
 		return parse_reply_info_dir(p, end, info, features);
-	else if (info->head->op == CEPH_MDS_OP_CREATE)
+	else if (op == CEPH_MDS_OP_CREATE)
 		return parse_reply_info_create(p, end, info, features);
 	else
 		return -EIO;
@@ -627,6 +628,9 @@ static void __unregister_request(struct
 {
 	dout("__unregister_request %p tid %lld\n", req, req->r_tid);
 
+	/* Never leave an unregistered request on an unsafe list! */
+	list_del_init(&req->r_unsafe_item);
+
 	if (req->r_tid == mdsc->oldest_tid) {
 		struct rb_node *p = rb_next(&req->r_node);
 		mdsc->oldest_tid = 0;
@@ -1035,7 +1039,6 @@ static void cleanup_session_requests(str
 	while (!list_empty(&session->s_unsafe)) {
 		req = list_first_entry(&session->s_unsafe,
 				       struct ceph_mds_request, r_unsafe_item);
-		list_del_init(&req->r_unsafe_item);
 		pr_warn_ratelimited(" dropping unsafe request %llu\n",
 				    req->r_tid);
 		__unregister_request(mdsc, req);
@@ -2422,7 +2425,6 @@ static void handle_reply(struct ceph_mds
 			 * useful we could do with a revised return value.
 			 */
 			dout("got safe reply %llu, mds%d\n", tid, mds);
-			list_del_init(&req->r_unsafe_item);
 
 			/* last unsafe request during umount? */
 			if (mdsc->stopping && !__get_oldest_req(mdsc))
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/super.h linux-libre-4.9.52-gnu/fs/ceph/super.h
--- linux-libre-4.9-gnu/fs/ceph/super.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/super.h	2017-09-27 08:40:05.000000000 -0400
@@ -905,6 +905,8 @@ extern int ceph_encode_dentry_release(vo
 
 extern int ceph_get_caps(struct ceph_inode_info *ci, int need, int want,
 			 loff_t endoff, int *got, struct page **pinned_page);
+extern int ceph_try_get_caps(struct ceph_inode_info *ci,
+			     int need, int want, int *got);
 
 /* for counting open files by mode */
 extern void __ceph_get_fmode(struct ceph_inode_info *ci, int mode);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ceph/xattr.c linux-libre-4.9.52-gnu/fs/ceph/xattr.c
--- linux-libre-4.9-gnu/fs/ceph/xattr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ceph/xattr.c	2017-09-27 08:40:05.000000000 -0400
@@ -392,6 +392,7 @@ static int __set_xattr(struct ceph_inode
 
 	if (update_xattr) {
 		int err = 0;
+
 		if (xattr && (flags & XATTR_CREATE))
 			err = -EEXIST;
 		else if (!xattr && (flags & XATTR_REPLACE))
@@ -399,12 +400,14 @@ static int __set_xattr(struct ceph_inode
 		if (err) {
 			kfree(name);
 			kfree(val);
+			kfree(*newxattr);
 			return err;
 		}
 		if (update_xattr < 0) {
 			if (xattr)
 				__remove_xattr(ci, xattr);
 			kfree(name);
+			kfree(*newxattr);
 			return 0;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/cifs_dfs_ref.c linux-libre-4.9.52-gnu/fs/cifs/cifs_dfs_ref.c
--- linux-libre-4.9-gnu/fs/cifs/cifs_dfs_ref.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/cifs_dfs_ref.c	2017-09-27 08:40:05.000000000 -0400
@@ -245,7 +245,8 @@ compose_mount_options_err:
  * @fullpath:		full path in UNC format
  * @ref:		server's referral
  */
-static struct vfsmount *cifs_dfs_do_refmount(struct cifs_sb_info *cifs_sb,
+static struct vfsmount *cifs_dfs_do_refmount(struct dentry *mntpt,
+		struct cifs_sb_info *cifs_sb,
 		const char *fullpath, const struct dfs_info3_param *ref)
 {
 	struct vfsmount *mnt;
@@ -259,7 +260,7 @@ static struct vfsmount *cifs_dfs_do_refm
 	if (IS_ERR(mountdata))
 		return (struct vfsmount *)mountdata;
 
-	mnt = vfs_kern_mount(&cifs_fs_type, 0, devname, mountdata);
+	mnt = vfs_submount(mntpt, &cifs_fs_type, devname, mountdata);
 	kfree(mountdata);
 	kfree(devname);
 	return mnt;
@@ -334,7 +335,7 @@ static struct vfsmount *cifs_dfs_do_auto
 			mnt = ERR_PTR(-EINVAL);
 			break;
 		}
-		mnt = cifs_dfs_do_refmount(cifs_sb,
+		mnt = cifs_dfs_do_refmount(mntpt, cifs_sb,
 				full_path, referrals + i);
 		cifs_dbg(FYI, "%s: cifs_dfs_do_refmount:%s , mnt:%p\n",
 			 __func__, referrals[i].node_name, mnt);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/cifsfs.c linux-libre-4.9.52-gnu/fs/cifs/cifsfs.c
--- linux-libre-4.9-gnu/fs/cifs/cifsfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/cifsfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -87,6 +87,7 @@ extern mempool_t *cifs_req_poolp;
 extern mempool_t *cifs_mid_poolp;
 
 struct workqueue_struct	*cifsiod_wq;
+struct workqueue_struct	*cifsoplockd_wq;
 __u32 cifs_lock_secret;
 
 /*
@@ -1283,9 +1284,16 @@ init_cifs(void)
 		goto out_clean_proc;
 	}
 
+	cifsoplockd_wq = alloc_workqueue("cifsoplockd",
+					 WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+	if (!cifsoplockd_wq) {
+		rc = -ENOMEM;
+		goto out_destroy_cifsiod_wq;
+	}
+
 	rc = cifs_fscache_register();
 	if (rc)
-		goto out_destroy_wq;
+		goto out_destroy_cifsoplockd_wq;
 
 	rc = cifs_init_inodecache();
 	if (rc)
@@ -1333,7 +1341,9 @@ out_destroy_inodecache:
 	cifs_destroy_inodecache();
 out_unreg_fscache:
 	cifs_fscache_unregister();
-out_destroy_wq:
+out_destroy_cifsoplockd_wq:
+	destroy_workqueue(cifsoplockd_wq);
+out_destroy_cifsiod_wq:
 	destroy_workqueue(cifsiod_wq);
 out_clean_proc:
 	cifs_proc_clean();
@@ -1356,6 +1366,7 @@ exit_cifs(void)
 	cifs_destroy_mids();
 	cifs_destroy_inodecache();
 	cifs_fscache_unregister();
+	destroy_workqueue(cifsoplockd_wq);
 	destroy_workqueue(cifsiod_wq);
 	cifs_proc_clean();
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/cifsglob.h linux-libre-4.9.52-gnu/fs/cifs/cifsglob.h
--- linux-libre-4.9-gnu/fs/cifs/cifsglob.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/cifsglob.h	2017-09-27 08:40:05.000000000 -0400
@@ -241,6 +241,7 @@ struct smb_version_operations {
 	/* verify the message */
 	int (*check_message)(char *, unsigned int, struct TCP_Server_Info *);
 	bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
+	int (*handle_cancelled_mid)(char *, struct TCP_Server_Info *);
 	void (*downgrade_oplock)(struct TCP_Server_Info *,
 					struct cifsInodeInfo *, bool);
 	/* process transaction2 response */
@@ -646,6 +647,8 @@ struct TCP_Server_Info {
 	unsigned int	max_read;
 	unsigned int	max_write;
 	__u8		preauth_hash[512];
+	struct delayed_work reconnect; /* reconnect workqueue job */
+	struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
 #endif /* CONFIG_CIFS_SMB2 */
 	unsigned long echo_interval;
 };
@@ -849,6 +852,7 @@ cap_unix(struct cifs_ses *ses)
 struct cifs_tcon {
 	struct list_head tcon_list;
 	int tc_count;
+	struct list_head rlist; /* reconnect list */
 	struct list_head openFileList;
 	spinlock_t open_file_lock; /* protects list above */
 	struct cifs_ses *ses;	/* pointer to session associated with */
@@ -922,11 +926,11 @@ struct cifs_tcon {
 	bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */
 	bool broken_sparse_sup; /* if server or share does not support sparse */
 	bool need_reconnect:1; /* connection reset, tid now invalid */
+	bool need_reopen_files:1; /* need to reopen tcon file handles */
 	bool use_resilient:1; /* use resilient instead of durable handles */
 	bool use_persistent:1; /* use persistent instead of durable handles */
 #ifdef CONFIG_CIFS_SMB2
 	bool print:1;		/* set if connection to printer share */
-	bool bad_network_name:1; /* set if ret status STATUS_BAD_NETWORK_NAME */
 	__le32 capabilities;
 	__u32 share_flags;
 	__u32 maximal_access;
@@ -1311,12 +1315,19 @@ struct mid_q_entry {
 	void *callback_data;	  /* general purpose pointer for callback */
 	void *resp_buf;		/* pointer to received SMB header */
 	int mid_state;	/* wish this were enum but can not pass to wait_event */
+	unsigned int mid_flags;
 	__le16 command;		/* smb command code */
 	bool large_buf:1;	/* if valid response, is pointer to large buf */
 	bool multiRsp:1;	/* multiple trans2 responses for one request  */
 	bool multiEnd:1;	/* both received */
 };
 
+struct close_cancelled_open {
+	struct cifs_fid         fid;
+	struct cifs_tcon        *tcon;
+	struct work_struct      work;
+};
+
 /*	Make code in transport.c a little cleaner by moving
 	update of optional stats into function below */
 #ifdef CONFIG_CIFS_STATS2
@@ -1448,6 +1459,9 @@ static inline void free_dfs_info_array(s
 #define   MID_RESPONSE_MALFORMED 0x10
 #define   MID_SHUTDOWN		 0x20
 
+/* Flags */
+#define   MID_WAIT_CANCELLED	 1 /* Cancelled while waiting for response */
+
 /* Types of response buffer returned from SendReceive2 */
 #define   CIFS_NO_BUFFER        0    /* Response buffer not returned */
 #define   CIFS_SMALL_BUFFER     1
@@ -1637,6 +1651,7 @@ void cifs_oplock_break(struct work_struc
 
 extern const struct slow_work_ops cifs_oplock_break_ops;
 extern struct workqueue_struct *cifsiod_wq;
+extern struct workqueue_struct *cifsoplockd_wq;
 extern __u32 cifs_lock_secret;
 
 extern mempool_t *cifs_mid_poolp;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/cifsproto.h linux-libre-4.9.52-gnu/fs/cifs/cifsproto.h
--- linux-libre-4.9-gnu/fs/cifs/cifsproto.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/cifsproto.h	2017-09-27 08:40:05.000000000 -0400
@@ -206,6 +206,9 @@ extern void cifs_add_pending_open_locked
 					 struct tcon_link *tlink,
 					 struct cifs_pending_open *open);
 extern void cifs_del_pending_open(struct cifs_pending_open *open);
+extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
+				 int from_reconnect);
+extern void cifs_put_tcon(struct cifs_tcon *tcon);
 
 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
 extern void cifs_dfs_release_automount_timer(void);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/cifssmb.c linux-libre-4.9.52-gnu/fs/cifs/cifssmb.c
--- linux-libre-4.9-gnu/fs/cifs/cifssmb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/cifssmb.c	2017-09-27 08:40:05.000000000 -0400
@@ -717,6 +717,9 @@ CIFSSMBEcho(struct TCP_Server_Info *serv
 	if (rc)
 		return rc;
 
+	if (server->capabilities & CAP_UNICODE)
+		smb->hdr.Flags2 |= SMBFLG2_UNICODE;
+
 	/* set up echo request */
 	smb->hdr.Tid = 0xffff;
 	smb->hdr.WordCount = 1;
@@ -1423,6 +1426,8 @@ cifs_readv_discard(struct TCP_Server_Inf
 
 	length = discard_remaining_data(server);
 	dequeue_mid(mid, rdata->result);
+	mid->resp_buf = server->smallbuf;
+	server->smallbuf = NULL;
 	return length;
 }
 
@@ -1534,6 +1539,8 @@ cifs_readv_receive(struct TCP_Server_Inf
 		return cifs_readv_discard(server, mid);
 
 	dequeue_mid(mid, false);
+	mid->resp_buf = server->smallbuf;
+	server->smallbuf = NULL;
 	return length;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/cifs_unicode.c linux-libre-4.9.52-gnu/fs/cifs/cifs_unicode.c
--- linux-libre-4.9-gnu/fs/cifs/cifs_unicode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/cifs_unicode.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,6 +83,9 @@ convert_sfm_char(const __u16 src_char, c
 	case SFM_COLON:
 		*target = ':';
 		break;
+	case SFM_DOUBLEQUOTE:
+		*target = '"';
+		break;
 	case SFM_ASTERISK:
 		*target = '*';
 		break;
@@ -418,6 +421,9 @@ static __le16 convert_to_sfm_char(char s
 	case ':':
 		dest_char = cpu_to_le16(SFM_COLON);
 		break;
+	case '"':
+		dest_char = cpu_to_le16(SFM_DOUBLEQUOTE);
+		break;
 	case '*':
 		dest_char = cpu_to_le16(SFM_ASTERISK);
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/cifs_unicode.h linux-libre-4.9.52-gnu/fs/cifs/cifs_unicode.h
--- linux-libre-4.9-gnu/fs/cifs/cifs_unicode.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/cifs_unicode.h	2017-09-27 08:40:05.000000000 -0400
@@ -57,6 +57,7 @@
  * not conflict (although almost does) with the mapping above.
  */
 
+#define SFM_DOUBLEQUOTE ((__u16) 0xF020)
 #define SFM_ASTERISK    ((__u16) 0xF021)
 #define SFM_QUESTION    ((__u16) 0xF025)
 #define SFM_COLON       ((__u16) 0xF022)
@@ -64,8 +65,8 @@
 #define SFM_LESSTHAN    ((__u16) 0xF023)
 #define SFM_PIPE        ((__u16) 0xF027)
 #define SFM_SLASH       ((__u16) 0xF026)
-#define SFM_PERIOD	((__u16) 0xF028)
-#define SFM_SPACE	((__u16) 0xF029)
+#define SFM_SPACE	((__u16) 0xF028)
+#define SFM_PERIOD	((__u16) 0xF029)
 
 /*
  * Mapping mechanism to use when one of the seven reserved characters is
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/connect.c linux-libre-4.9.52-gnu/fs/cifs/connect.c
--- linux-libre-4.9-gnu/fs/cifs/connect.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/connect.c	2017-09-27 08:40:05.000000000 -0400
@@ -52,6 +52,9 @@
 #include "nterr.h"
 #include "rfc1002pdu.h"
 #include "fscache.h"
+#ifdef CONFIG_CIFS_SMB2
+#include "smb2proto.h"
+#endif
 
 #define CIFS_PORT 445
 #define RFC1001_PORT 139
@@ -879,10 +882,19 @@ cifs_demultiplex_thread(void *p)
 
 		server->lstrp = jiffies;
 		if (mid_entry != NULL) {
+			if ((mid_entry->mid_flags & MID_WAIT_CANCELLED) &&
+			     mid_entry->mid_state == MID_RESPONSE_RECEIVED &&
+					server->ops->handle_cancelled_mid)
+				server->ops->handle_cancelled_mid(
+							mid_entry->resp_buf,
+							server);
+
 			if (!mid_entry->multiRsp || mid_entry->multiEnd)
 				mid_entry->callback(mid_entry);
-		} else if (!server->ops->is_oplock_break ||
-			   !server->ops->is_oplock_break(buf, server)) {
+		} else if (server->ops->is_oplock_break &&
+			   server->ops->is_oplock_break(buf, server)) {
+			cifs_dbg(FYI, "Received oplock break\n");
+		} else {
 			cifs_dbg(VFS, "No task to wake, unknown frame received! NumMids %d\n",
 				 atomic_read(&midCount));
 			cifs_dump_mem("Received Data is: ", buf,
@@ -2100,8 +2112,8 @@ cifs_find_tcp_session(struct smb_vol *vo
 	return NULL;
 }
 
-static void
-cifs_put_tcp_session(struct TCP_Server_Info *server)
+void
+cifs_put_tcp_session(struct TCP_Server_Info *server, int from_reconnect)
 {
 	struct task_struct *task;
 
@@ -2118,6 +2130,19 @@ cifs_put_tcp_session(struct TCP_Server_I
 
 	cancel_delayed_work_sync(&server->echo);
 
+#ifdef CONFIG_CIFS_SMB2
+	if (from_reconnect)
+		/*
+		 * Avoid deadlock here: reconnect work calls
+		 * cifs_put_tcp_session() at its end. Need to be sure
+		 * that reconnect work does nothing with server pointer after
+		 * that step.
+		 */
+		cancel_delayed_work(&server->reconnect);
+	else
+		cancel_delayed_work_sync(&server->reconnect);
+#endif
+
 	spin_lock(&GlobalMid_Lock);
 	server->tcpStatus = CifsExiting;
 	spin_unlock(&GlobalMid_Lock);
@@ -2182,6 +2207,10 @@ cifs_get_tcp_session(struct smb_vol *vol
 	INIT_LIST_HEAD(&tcp_ses->tcp_ses_list);
 	INIT_LIST_HEAD(&tcp_ses->smb_ses_list);
 	INIT_DELAYED_WORK(&tcp_ses->echo, cifs_echo_request);
+#ifdef CONFIG_CIFS_SMB2
+	INIT_DELAYED_WORK(&tcp_ses->reconnect, smb2_reconnect_server);
+	mutex_init(&tcp_ses->reconnect_mutex);
+#endif
 	memcpy(&tcp_ses->srcaddr, &volume_info->srcaddr,
 	       sizeof(tcp_ses->srcaddr));
 	memcpy(&tcp_ses->dstaddr, &volume_info->dstaddr,
@@ -2340,7 +2369,7 @@ cifs_put_smb_ses(struct cifs_ses *ses)
 	spin_unlock(&cifs_tcp_ses_lock);
 
 	sesInfoFree(ses);
-	cifs_put_tcp_session(server);
+	cifs_put_tcp_session(server, 0);
 }
 
 #ifdef CONFIG_KEYS
@@ -2514,7 +2543,7 @@ cifs_get_smb_ses(struct TCP_Server_Info
 		mutex_unlock(&ses->session_mutex);
 
 		/* existing SMB ses has a server reference already */
-		cifs_put_tcp_session(server);
+		cifs_put_tcp_session(server, 0);
 		free_xid(xid);
 		return ses;
 	}
@@ -2604,7 +2633,7 @@ cifs_find_tcon(struct cifs_ses *ses, con
 	return NULL;
 }
 
-static void
+void
 cifs_put_tcon(struct cifs_tcon *tcon)
 {
 	unsigned int xid;
@@ -2810,16 +2839,14 @@ match_prepath(struct super_block *sb, st
 {
 	struct cifs_sb_info *old = CIFS_SB(sb);
 	struct cifs_sb_info *new = mnt_data->cifs_sb;
+	bool old_set = old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH;
+	bool new_set = new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH;
 
-	if (old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) {
-		if (!(new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH))
-			return 0;
-		/* The prepath should be null terminated strings */
-		if (strcmp(new->prepath, old->prepath))
-			return 0;
-
+	if (old_set && new_set && !strcmp(new->prepath, old->prepath))
 		return 1;
-	}
+	else if (!old_set && !new_set)
+		return 1;
+
 	return 0;
 }
 
@@ -3792,7 +3819,7 @@ mount_fail_check:
 		else if (ses)
 			cifs_put_smb_ses(ses);
 		else
-			cifs_put_tcp_session(server);
+			cifs_put_tcp_session(server, 0);
 		bdi_destroy(&cifs_sb->bdi);
 	}
 
@@ -4103,7 +4130,7 @@ cifs_construct_tcon(struct cifs_sb_info
 	ses = cifs_get_smb_ses(master_tcon->ses->server, vol_info);
 	if (IS_ERR(ses)) {
 		tcon = (struct cifs_tcon *)ses;
-		cifs_put_tcp_session(master_tcon->ses->server);
+		cifs_put_tcp_session(master_tcon->ses->server, 0);
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/dir.c linux-libre-4.9.52-gnu/fs/cifs/dir.c
--- linux-libre-4.9-gnu/fs/cifs/dir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/dir.c	2017-09-27 08:40:05.000000000 -0400
@@ -183,15 +183,20 @@ cifs_bp_rename_retry:
 }
 
 /*
+ * Don't allow path components longer than the server max.
  * Don't allow the separator character in a path component.
  * The VFS will not allow "/", but "\" is allowed by posix.
  */
 static int
-check_name(struct dentry *direntry)
+check_name(struct dentry *direntry, struct cifs_tcon *tcon)
 {
 	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
 	int i;
 
+	if (unlikely(direntry->d_name.len >
+		     le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength)))
+		return -ENAMETOOLONG;
+
 	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)) {
 		for (i = 0; i < direntry->d_name.len; i++) {
 			if (direntry->d_name.name[i] == '\\') {
@@ -489,10 +494,6 @@ cifs_atomic_open(struct inode *inode, st
 		return finish_no_open(file, res);
 	}
 
-	rc = check_name(direntry);
-	if (rc)
-		return rc;
-
 	xid = get_xid();
 
 	cifs_dbg(FYI, "parent inode = 0x%p name is: %pd and dentry = 0x%p\n",
@@ -505,6 +506,11 @@ cifs_atomic_open(struct inode *inode, st
 	}
 
 	tcon = tlink_tcon(tlink);
+
+	rc = check_name(direntry, tcon);
+	if (rc)
+		goto out_free_xid;
+
 	server = tcon->ses->server;
 
 	if (server->ops->new_lease_key)
@@ -765,7 +771,7 @@ cifs_lookup(struct inode *parent_dir_ino
 	}
 	pTcon = tlink_tcon(tlink);
 
-	rc = check_name(direntry);
+	rc = check_name(direntry, pTcon);
 	if (rc)
 		goto lookup_out;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/file.c linux-libre-4.9.52-gnu/fs/cifs/file.c
--- linux-libre-4.9-gnu/fs/cifs/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -777,6 +777,11 @@ cifs_reopen_persistent_handles(struct ci
 	struct list_head *tmp1;
 	struct list_head tmp_list;
 
+	if (!tcon->use_persistent || !tcon->need_reopen_files)
+		return;
+
+	tcon->need_reopen_files = false;
+
 	cifs_dbg(FYI, "Reopen persistent handles");
 	INIT_LIST_HEAD(&tmp_list);
 
@@ -793,7 +798,8 @@ cifs_reopen_persistent_handles(struct ci
 
 	list_for_each_safe(tmp, tmp1, &tmp_list) {
 		open_file = list_entry(tmp, struct cifsFileInfo, rlist);
-		cifs_reopen_file(open_file, false /* do not flush */);
+		if (cifs_reopen_file(open_file, false /* do not flush */))
+			tcon->need_reopen_files = true;
 		list_del_init(&open_file->rlist);
 		cifsFileInfo_put(open_file);
 	}
@@ -2591,7 +2597,7 @@ cifs_write_from_iter(loff_t offset, size
 		wdata->credits = credits;
 
 		if (!wdata->cfile->invalidHandle ||
-		    !cifs_reopen_file(wdata->cfile, false))
+		    !(rc = cifs_reopen_file(wdata->cfile, false)))
 			rc = server->ops->async_writev(wdata,
 					cifs_uncached_writedata_release);
 		if (rc) {
@@ -2878,7 +2884,15 @@ cifs_readdata_to_iov(struct cifs_readdat
 	for (i = 0; i < rdata->nr_pages; i++) {
 		struct page *page = rdata->pages[i];
 		size_t copy = min_t(size_t, remaining, PAGE_SIZE);
-		size_t written = copy_page_to_iter(page, 0, copy, iter);
+		size_t written;
+
+		if (unlikely(iter->type & ITER_PIPE)) {
+			void *addr = kmap_atomic(page);
+
+			written = copy_to_iter(addr, copy, iter);
+			kunmap_atomic(addr);
+		} else
+			written = copy_page_to_iter(page, 0, copy, iter);
 		remaining -= written;
 		if (written < copy && iov_iter_count(iter) > 0)
 			break;
@@ -2988,7 +3002,7 @@ cifs_send_async_read(loff_t offset, size
 		rdata->credits = credits;
 
 		if (!rdata->cfile->invalidHandle ||
-		    !cifs_reopen_file(rdata->cfile, true))
+		    !(rc = cifs_reopen_file(rdata->cfile, true)))
 			rc = server->ops->async_readv(rdata);
 error:
 		if (rc) {
@@ -3563,7 +3577,7 @@ static int cifs_readpages(struct file *f
 		}
 
 		if (!rdata->cfile->invalidHandle ||
-		    !cifs_reopen_file(rdata->cfile, true))
+		    !(rc = cifs_reopen_file(rdata->cfile, true)))
 			rc = server->ops->async_readv(rdata);
 		if (rc) {
 			add_credits_and_wake_if(server, rdata->credits, 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/ioctl.c linux-libre-4.9.52-gnu/fs/cifs/ioctl.c
--- linux-libre-4.9-gnu/fs/cifs/ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -189,7 +189,7 @@ long cifs_ioctl(struct file *filep, unsi
 	xid = get_xid();
 
 	cifs_sb = CIFS_SB(inode->i_sb);
-	cifs_dbg(VFS, "cifs ioctl 0x%x\n", command);
+	cifs_dbg(FYI, "cifs ioctl 0x%x\n", command);
 	switch (command) {
 		case FS_IOC_GETFLAGS:
 			if (pSMBFile == NULL)
@@ -264,10 +264,14 @@ long cifs_ioctl(struct file *filep, unsi
 				rc = -EOPNOTSUPP;
 			break;
 		case CIFS_IOC_GET_MNT_INFO:
+			if (pSMBFile == NULL)
+				break;
 			tcon = tlink_tcon(pSMBFile->tlink);
 			rc = smb_mnt_get_fsinfo(xid, tcon, (void __user *)arg);
 			break;
 		case CIFS_ENUMERATE_SNAPSHOTS:
+			if (pSMBFile == NULL)
+				break;
 			if (arg == 0) {
 				rc = -EINVAL;
 				goto cifs_ioc_exit;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/misc.c linux-libre-4.9.52-gnu/fs/cifs/misc.c
--- linux-libre-4.9-gnu/fs/cifs/misc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/misc.c	2017-09-27 08:40:05.000000000 -0400
@@ -492,7 +492,7 @@ is_valid_oplock_break(char *buffer, stru
 					   CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
 					   &pCifsInode->flags);
 
-				queue_work(cifsiod_wq,
+				queue_work(cifsoplockd_wq,
 					   &netfile->oplock_break);
 				netfile->oplock_break_cancelled = false;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/readdir.c linux-libre-4.9.52-gnu/fs/cifs/readdir.c
--- linux-libre-4.9-gnu/fs/cifs/readdir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/readdir.c	2017-09-27 08:40:05.000000000 -0400
@@ -285,6 +285,7 @@ initiate_cifs_search(const unsigned int
 			rc = -ENOMEM;
 			goto error_exit;
 		}
+		spin_lock_init(&cifsFile->file_info_lock);
 		file->private_data = cifsFile;
 		cifsFile->tlink = cifs_get_tlink(tlink);
 		tcon = tlink_tcon(tlink);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb1ops.c linux-libre-4.9.52-gnu/fs/cifs/smb1ops.c
--- linux-libre-4.9-gnu/fs/cifs/smb1ops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb1ops.c	2017-09-27 08:40:05.000000000 -0400
@@ -849,8 +849,13 @@ cifs_query_dir_first(const unsigned int
 		     struct cifs_fid *fid, __u16 search_flags,
 		     struct cifs_search_info *srch_inf)
 {
-	return CIFSFindFirst(xid, tcon, path, cifs_sb,
-			     &fid->netfid, search_flags, srch_inf, true);
+	int rc;
+
+	rc = CIFSFindFirst(xid, tcon, path, cifs_sb,
+			   &fid->netfid, search_flags, srch_inf, true);
+	if (rc)
+		cifs_dbg(FYI, "find first failed=%d\n", rc);
+	return rc;
 }
 
 static int
@@ -1015,6 +1020,15 @@ cifs_dir_needs_close(struct cifsFileInfo
 	return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle;
 }
 
+static bool
+cifs_can_echo(struct TCP_Server_Info *server)
+{
+	if (server->tcpStatus == CifsGood)
+		return true;
+
+	return false;
+}
+
 struct smb_version_operations smb1_operations = {
 	.send_cancel = send_nt_cancel,
 	.compare_fids = cifs_compare_fids,
@@ -1049,6 +1063,7 @@ struct smb_version_operations smb1_opera
 	.get_dfs_refer = CIFSGetDFSRefer,
 	.qfs_tcon = cifs_qfs_tcon,
 	.is_path_accessible = cifs_is_path_accessible,
+	.can_echo = cifs_can_echo,
 	.query_path_info = cifs_query_path_info,
 	.query_file_info = cifs_query_file_info,
 	.get_srv_inum = cifs_get_srv_inum,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb2file.c linux-libre-4.9.52-gnu/fs/cifs/smb2file.c
--- linux-libre-4.9-gnu/fs/cifs/smb2file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb2file.c	2017-09-27 08:40:05.000000000 -0400
@@ -260,7 +260,7 @@ smb2_push_mandatory_locks(struct cifsFil
 	 * and check it for zero before using.
 	 */
 	max_buf = tlink_tcon(cfile->tlink)->ses->server->maxBuf;
-	if (!max_buf) {
+	if (max_buf < sizeof(struct smb2_lock_element)) {
 		free_xid(xid);
 		return -EINVAL;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb2misc.c linux-libre-4.9.52-gnu/fs/cifs/smb2misc.c
--- linux-libre-4.9-gnu/fs/cifs/smb2misc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb2misc.c	2017-09-27 08:40:05.000000000 -0400
@@ -494,7 +494,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tc
 		else
 			cfile->oplock_break_cancelled = true;
 
-		queue_work(cifsiod_wq, &cfile->oplock_break);
+		queue_work(cifsoplockd_wq, &cfile->oplock_break);
 		kfree(lw);
 		return true;
 	}
@@ -638,7 +638,8 @@ smb2_is_valid_oplock_break(char *buffer,
 					   CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
 					   &cinode->flags);
 				spin_unlock(&cfile->file_info_lock);
-				queue_work(cifsiod_wq, &cfile->oplock_break);
+				queue_work(cifsoplockd_wq,
+					   &cfile->oplock_break);
 
 				spin_unlock(&tcon->open_file_lock);
 				spin_unlock(&cifs_tcp_ses_lock);
@@ -654,3 +655,47 @@ smb2_is_valid_oplock_break(char *buffer,
 	cifs_dbg(FYI, "Can not process oplock break for non-existent connection\n");
 	return false;
 }
+
+void
+smb2_cancelled_close_fid(struct work_struct *work)
+{
+	struct close_cancelled_open *cancelled = container_of(work,
+					struct close_cancelled_open, work);
+
+	cifs_dbg(VFS, "Close unmatched open\n");
+
+	SMB2_close(0, cancelled->tcon, cancelled->fid.persistent_fid,
+		   cancelled->fid.volatile_fid);
+	cifs_put_tcon(cancelled->tcon);
+	kfree(cancelled);
+}
+
+int
+smb2_handle_cancelled_mid(char *buffer, struct TCP_Server_Info *server)
+{
+	struct smb2_hdr *hdr = (struct smb2_hdr *)buffer;
+	struct smb2_create_rsp *rsp = (struct smb2_create_rsp *)buffer;
+	struct cifs_tcon *tcon;
+	struct close_cancelled_open *cancelled;
+
+	if (hdr->Command != SMB2_CREATE || hdr->Status != STATUS_SUCCESS)
+		return 0;
+
+	cancelled = kzalloc(sizeof(*cancelled), GFP_KERNEL);
+	if (!cancelled)
+		return -ENOMEM;
+
+	tcon = smb2_find_smb_tcon(server, hdr->SessionId, hdr->TreeId);
+	if (!tcon) {
+		kfree(cancelled);
+		return -ENOENT;
+	}
+
+	cancelled->fid.persistent_fid = rsp->PersistentFileId;
+	cancelled->fid.volatile_fid = rsp->VolatileFileId;
+	cancelled->tcon = tcon;
+	INIT_WORK(&cancelled->work, smb2_cancelled_close_fid);
+	queue_work(cifsiod_wq, &cancelled->work);
+
+	return 0;
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb2ops.c linux-libre-4.9.52-gnu/fs/cifs/smb2ops.c
--- linux-libre-4.9-gnu/fs/cifs/smb2ops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb2ops.c	2017-09-27 08:40:05.000000000 -0400
@@ -924,6 +924,7 @@ smb3_enum_snapshots(const unsigned int x
 		}
 		if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) {
 			rc = -ERANGE;
+			kfree(retbuf);
 			return rc;
 		}
 
@@ -963,7 +964,7 @@ smb2_query_dir_first(const unsigned int
 	rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
 	kfree(utf16_path);
 	if (rc) {
-		cifs_dbg(VFS, "open dir failed\n");
+		cifs_dbg(FYI, "open dir failed rc=%d\n", rc);
 		return rc;
 	}
 
@@ -973,7 +974,7 @@ smb2_query_dir_first(const unsigned int
 	rc = SMB2_query_directory(xid, tcon, fid->persistent_fid,
 				  fid->volatile_fid, 0, srch_inf);
 	if (rc) {
-		cifs_dbg(VFS, "query directory failed\n");
+		cifs_dbg(FYI, "query directory failed rc=%d\n", rc);
 		SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
 	}
 	return rc;
@@ -1565,6 +1566,7 @@ struct smb_version_operations smb20_oper
 	.clear_stats = smb2_clear_stats,
 	.print_stats = smb2_print_stats,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
@@ -1645,6 +1647,7 @@ struct smb_version_operations smb21_oper
 	.clear_stats = smb2_clear_stats,
 	.print_stats = smb2_print_stats,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
@@ -1727,6 +1730,7 @@ struct smb_version_operations smb30_oper
 	.print_stats = smb2_print_stats,
 	.dump_share_caps = smb2_dump_share_caps,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
@@ -1815,6 +1819,7 @@ struct smb_version_operations smb311_ope
 	.print_stats = smb2_print_stats,
 	.dump_share_caps = smb2_dump_share_caps,
 	.is_oplock_break = smb2_is_valid_oplock_break,
+	.handle_cancelled_mid = smb2_handle_cancelled_mid,
 	.downgrade_oplock = smb2_downgrade_oplock,
 	.need_neg = smb2_need_neg,
 	.negotiate = smb2_negotiate,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb2pdu.c linux-libre-4.9.52-gnu/fs/cifs/smb2pdu.c
--- linux-libre-4.9-gnu/fs/cifs/smb2pdu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb2pdu.c	2017-09-27 08:40:05.000000000 -0400
@@ -250,16 +250,19 @@ smb2_reconnect(__le16 smb2_command, stru
 	}
 
 	cifs_mark_open_files_invalid(tcon);
+	if (tcon->use_persistent)
+		tcon->need_reopen_files = true;
 
 	rc = SMB2_tcon(0, tcon->ses, tcon->treeName, tcon, nls_codepage);
 	mutex_unlock(&tcon->ses->session_mutex);
 
-	if (tcon->use_persistent)
-		cifs_reopen_persistent_handles(tcon);
-
 	cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
 	if (rc)
 		goto out;
+
+	if (smb2_command != SMB2_INTERNAL_CMD)
+		queue_delayed_work(cifsiod_wq, &server->reconnect, 0);
+
 	atomic_inc(&tconInfoReconnectCount);
 out:
 	/*
@@ -280,7 +283,7 @@ out:
 	case SMB2_CHANGE_NOTIFY:
 	case SMB2_QUERY_INFO:
 	case SMB2_SET_INFO:
-		return -EAGAIN;
+		rc = -EAGAIN;
 	}
 	unload_nls(nls_codepage);
 	return rc;
@@ -566,8 +569,12 @@ int smb3_validate_negotiate(const unsign
 	}
 
 	if (rsplen != sizeof(struct validate_negotiate_info_rsp)) {
-		cifs_dbg(VFS, "invalid size of protocol negotiate response\n");
-		return -EIO;
+		cifs_dbg(VFS, "invalid protocol negotiate response size: %d\n",
+			 rsplen);
+
+		/* relax check since Mac returns max bufsize allowed on ioctl */
+		if (rsplen > CIFSMaxBufSize)
+			return -EIO;
 	}
 
 	/* check validate negotiate info response matches what we got earlier */
@@ -1081,9 +1088,6 @@ SMB2_tcon(const unsigned int xid, struct
 	else
 		return -EIO;
 
-	if (tcon && tcon->bad_network_name)
-		return -ENOENT;
-
 	if ((tcon && tcon->seal) &&
 	    ((ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) == 0)) {
 		cifs_dbg(VFS, "encryption requested but no server support");
@@ -1101,6 +1105,10 @@ SMB2_tcon(const unsigned int xid, struct
 		return -EINVAL;
 	}
 
+	/* SMB2 TREE_CONNECT request must be called with TreeId == 0 */
+	if (tcon)
+		tcon->tid = 0;
+
 	rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) &req);
 	if (rc) {
 		kfree(unc_path);
@@ -1181,8 +1189,6 @@ tcon_exit:
 tcon_error_exit:
 	if (rsp->hdr.Status == STATUS_BAD_NETWORK_NAME) {
 		cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
-		if (tcon)
-			tcon->bad_network_name = true;
 	}
 	goto tcon_exit;
 }
@@ -1668,8 +1674,12 @@ SMB2_ioctl(const unsigned int xid, struc
 	 * than one credit. Windows typically sets this smaller, but for some
 	 * ioctls it may be useful to allow server to send more. No point
 	 * limiting what the server can send as long as fits in one credit
+	 * Unfortunately - we can not handle more than CIFS_MAX_MSG_SIZE
+	 * (by default, note that it can be overridden to make max larger)
+	 * in responses (except for read responses which can be bigger.
+	 * We may want to bump this limit up
 	 */
-	req->MaxOutputResponse = cpu_to_le32(0xFF00); /* < 64K uses 1 credit */
+	req->MaxOutputResponse = cpu_to_le32(CIFSMaxBufSize);
 
 	if (is_fsctl)
 		req->Flags = cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL);
@@ -1972,6 +1982,63 @@ smb2_echo_callback(struct mid_q_entry *m
 	add_credits(server, credits_received, CIFS_ECHO_OP);
 }
 
+void smb2_reconnect_server(struct work_struct *work)
+{
+	struct TCP_Server_Info *server = container_of(work,
+					struct TCP_Server_Info, reconnect.work);
+	struct cifs_ses *ses;
+	struct cifs_tcon *tcon, *tcon2;
+	struct list_head tmp_list;
+	int tcon_exist = false;
+	int rc;
+	int resched = false;
+
+
+	/* Prevent simultaneous reconnects that can corrupt tcon->rlist list */
+	mutex_lock(&server->reconnect_mutex);
+
+	INIT_LIST_HEAD(&tmp_list);
+	cifs_dbg(FYI, "Need negotiate, reconnecting tcons\n");
+
+	spin_lock(&cifs_tcp_ses_lock);
+	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+		list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
+			if (tcon->need_reconnect || tcon->need_reopen_files) {
+				tcon->tc_count++;
+				list_add_tail(&tcon->rlist, &tmp_list);
+				tcon_exist = true;
+			}
+		}
+	}
+	/*
+	 * Get the reference to server struct to be sure that the last call of
+	 * cifs_put_tcon() in the loop below won't release the server pointer.
+	 */
+	if (tcon_exist)
+		server->srv_count++;
+
+	spin_unlock(&cifs_tcp_ses_lock);
+
+	list_for_each_entry_safe(tcon, tcon2, &tmp_list, rlist) {
+		rc = smb2_reconnect(SMB2_INTERNAL_CMD, tcon);
+		if (!rc)
+			cifs_reopen_persistent_handles(tcon);
+		else
+			resched = true;
+		list_del_init(&tcon->rlist);
+		cifs_put_tcon(tcon);
+	}
+
+	cifs_dbg(FYI, "Reconnecting tcons finished\n");
+	if (resched)
+		queue_delayed_work(cifsiod_wq, &server->reconnect, 2 * HZ);
+	mutex_unlock(&server->reconnect_mutex);
+
+	/* now we can safely release srv struct */
+	if (tcon_exist)
+		cifs_put_tcp_session(server, 1);
+}
+
 int
 SMB2_echo(struct TCP_Server_Info *server)
 {
@@ -1984,32 +2051,11 @@ SMB2_echo(struct TCP_Server_Info *server
 	cifs_dbg(FYI, "In echo request\n");
 
 	if (server->tcpStatus == CifsNeedNegotiate) {
-		struct list_head *tmp, *tmp2;
-		struct cifs_ses *ses;
-		struct cifs_tcon *tcon;
-
-		cifs_dbg(FYI, "Need negotiate, reconnecting tcons\n");
-		spin_lock(&cifs_tcp_ses_lock);
-		list_for_each(tmp, &server->smb_ses_list) {
-			ses = list_entry(tmp, struct cifs_ses, smb_ses_list);
-			list_for_each(tmp2, &ses->tcon_list) {
-				tcon = list_entry(tmp2, struct cifs_tcon,
-						  tcon_list);
-				/* add check for persistent handle reconnect */
-				if (tcon && tcon->need_reconnect) {
-					spin_unlock(&cifs_tcp_ses_lock);
-					rc = smb2_reconnect(SMB2_ECHO, tcon);
-					spin_lock(&cifs_tcp_ses_lock);
-				}
-			}
-		}
-		spin_unlock(&cifs_tcp_ses_lock);
+		/* No need to send echo on newly established connections */
+		queue_delayed_work(cifsiod_wq, &server->reconnect, 0);
+		return rc;
 	}
 
-	/* if no session, renegotiate failed above */
-	if (server->tcpStatus == CifsNeedNegotiate)
-		return -EIO;
-
 	rc = small_smb2_init(SMB2_ECHO, NULL, (void **)&req);
 	if (rc)
 		return rc;
@@ -2884,8 +2930,8 @@ copy_fs_info_to_kstatfs(struct smb2_fs_f
 	kst->f_bsize = le32_to_cpu(pfs_inf->BytesPerSector) *
 			  le32_to_cpu(pfs_inf->SectorsPerAllocationUnit);
 	kst->f_blocks = le64_to_cpu(pfs_inf->TotalAllocationUnits);
-	kst->f_bfree  = le64_to_cpu(pfs_inf->ActualAvailableAllocationUnits);
-	kst->f_bavail = le64_to_cpu(pfs_inf->CallerAvailableAllocationUnits);
+	kst->f_bfree  = kst->f_bavail =
+			le64_to_cpu(pfs_inf->CallerAvailableAllocationUnits);
 	return;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb2pdu.h linux-libre-4.9.52-gnu/fs/cifs/smb2pdu.h
--- linux-libre-4.9-gnu/fs/cifs/smb2pdu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb2pdu.h	2017-09-27 08:40:05.000000000 -0400
@@ -80,10 +80,12 @@
 #define SMB2_SET_INFO		cpu_to_le16(SMB2_SET_INFO_HE)
 #define SMB2_OPLOCK_BREAK	cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
 
+#define SMB2_INTERNAL_CMD	cpu_to_le16(0xFFFF)
+
 #define NUMBER_OF_SMB2_COMMANDS	0x0013
 
-/* BB FIXME - analyze following length BB */
-#define MAX_SMB2_HDR_SIZE 0x78 /* 4 len + 64 hdr + (2*24 wct) + 2 bct + 2 pad */
+/* 4 len + 52 transform hdr + 64 hdr + 56 create rsp */
+#define MAX_SMB2_HDR_SIZE 0x00b0
 
 #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
 #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb2proto.h linux-libre-4.9.52-gnu/fs/cifs/smb2proto.h
--- linux-libre-4.9-gnu/fs/cifs/smb2proto.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb2proto.h	2017-09-27 08:40:05.000000000 -0400
@@ -48,6 +48,10 @@ extern struct mid_q_entry *smb2_setup_re
 			      struct smb_rqst *rqst);
 extern struct mid_q_entry *smb2_setup_async_request(
 			struct TCP_Server_Info *server, struct smb_rqst *rqst);
+extern struct cifs_ses *smb2_find_smb_ses(struct TCP_Server_Info *server,
+					   __u64 ses_id);
+extern struct cifs_tcon *smb2_find_smb_tcon(struct TCP_Server_Info *server,
+						__u64 ses_id, __u32  tid);
 extern int smb2_calc_signature(struct smb_rqst *rqst,
 				struct TCP_Server_Info *server);
 extern int smb3_calc_signature(struct smb_rqst *rqst,
@@ -96,6 +100,7 @@ extern int smb2_open_file(const unsigned
 extern int smb2_unlock_range(struct cifsFileInfo *cfile,
 			     struct file_lock *flock, const unsigned int xid);
 extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile);
+extern void smb2_reconnect_server(struct work_struct *work);
 
 /*
  * SMB2 Worker functions - most of protocol specific implementation details
@@ -157,6 +162,9 @@ extern int SMB2_set_compression(const un
 extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
 			     const u64 persistent_fid, const u64 volatile_fid,
 			     const __u8 oplock_level);
+extern int smb2_handle_cancelled_mid(char *buffer,
+					struct TCP_Server_Info *server);
+void smb2_cancelled_close_fid(struct work_struct *work);
 extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
 			 u64 persistent_file_id, u64 volatile_file_id,
 			 struct kstatfs *FSData);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smb2transport.c linux-libre-4.9.52-gnu/fs/cifs/smb2transport.c
--- linux-libre-4.9-gnu/fs/cifs/smb2transport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smb2transport.c	2017-09-27 08:40:05.000000000 -0400
@@ -115,22 +115,68 @@ smb3_crypto_shash_allocate(struct TCP_Se
 }
 
 static struct cifs_ses *
-smb2_find_smb_ses(struct smb2_hdr *smb2hdr, struct TCP_Server_Info *server)
+smb2_find_smb_ses_unlocked(struct TCP_Server_Info *server, __u64 ses_id)
 {
 	struct cifs_ses *ses;
 
-	spin_lock(&cifs_tcp_ses_lock);
 	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
-		if (ses->Suid != smb2hdr->SessionId)
+		if (ses->Suid != ses_id)
 			continue;
-		spin_unlock(&cifs_tcp_ses_lock);
 		return ses;
 	}
+
+	return NULL;
+}
+
+struct cifs_ses *
+smb2_find_smb_ses(struct TCP_Server_Info *server, __u64 ses_id)
+{
+	struct cifs_ses *ses;
+
+	spin_lock(&cifs_tcp_ses_lock);
+	ses = smb2_find_smb_ses_unlocked(server, ses_id);
 	spin_unlock(&cifs_tcp_ses_lock);
 
+	return ses;
+}
+
+static struct cifs_tcon *
+smb2_find_smb_sess_tcon_unlocked(struct cifs_ses *ses, __u32  tid)
+{
+	struct cifs_tcon *tcon;
+
+	list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
+		if (tcon->tid != tid)
+			continue;
+		++tcon->tc_count;
+		return tcon;
+	}
+
 	return NULL;
 }
 
+/*
+ * Obtain tcon corresponding to the tid in the given
+ * cifs_ses
+ */
+
+struct cifs_tcon *
+smb2_find_smb_tcon(struct TCP_Server_Info *server, __u64 ses_id, __u32 tid)
+{
+	struct cifs_ses *ses;
+	struct cifs_tcon *tcon;
+
+	spin_lock(&cifs_tcp_ses_lock);
+	ses = smb2_find_smb_ses_unlocked(server, ses_id);
+	if (!ses) {
+		spin_unlock(&cifs_tcp_ses_lock);
+		return NULL;
+	}
+	tcon = smb2_find_smb_sess_tcon_unlocked(ses, tid);
+	spin_unlock(&cifs_tcp_ses_lock);
+
+	return tcon;
+}
 
 int
 smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
@@ -142,7 +188,7 @@ smb2_calc_signature(struct smb_rqst *rqs
 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
 	struct cifs_ses *ses;
 
-	ses = smb2_find_smb_ses(smb2_pdu, server);
+	ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
 	if (!ses) {
 		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
 		return 0;
@@ -359,7 +405,7 @@ smb3_calc_signature(struct smb_rqst *rqs
 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
 	struct cifs_ses *ses;
 
-	ses = smb2_find_smb_ses(smb2_pdu, server);
+	ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
 	if (!ses) {
 		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
 		return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/smbencrypt.c linux-libre-4.9.52-gnu/fs/cifs/smbencrypt.c
--- linux-libre-4.9-gnu/fs/cifs/smbencrypt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/smbencrypt.c	2017-09-27 08:40:05.000000000 -0400
@@ -23,7 +23,7 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-#include <crypto/skcipher.h>
+#include <linux/crypto.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
@@ -69,46 +69,22 @@ str_to_key(unsigned char *str, unsigned
 static int
 smbhash(unsigned char *out, const unsigned char *in, unsigned char *key)
 {
-	int rc;
 	unsigned char key2[8];
-	struct crypto_skcipher *tfm_des;
-	struct scatterlist sgin, sgout;
-	struct skcipher_request *req;
+	struct crypto_cipher *tfm_des;
 
 	str_to_key(key, key2);
 
-	tfm_des = crypto_alloc_skcipher("ecb(des)", 0, CRYPTO_ALG_ASYNC);
+	tfm_des = crypto_alloc_cipher("des", 0, 0);
 	if (IS_ERR(tfm_des)) {
-		rc = PTR_ERR(tfm_des);
 		cifs_dbg(VFS, "could not allocate des crypto API\n");
-		goto smbhash_err;
-	}
-
-	req = skcipher_request_alloc(tfm_des, GFP_KERNEL);
-	if (!req) {
-		rc = -ENOMEM;
-		cifs_dbg(VFS, "could not allocate des crypto API\n");
-		goto smbhash_free_skcipher;
+		return PTR_ERR(tfm_des);
 	}
 
-	crypto_skcipher_setkey(tfm_des, key2, 8);
-
-	sg_init_one(&sgin, in, 8);
-	sg_init_one(&sgout, out, 8);
-
-	skcipher_request_set_callback(req, 0, NULL, NULL);
-	skcipher_request_set_crypt(req, &sgin, &sgout, 8, NULL);
-
-	rc = crypto_skcipher_encrypt(req);
-	if (rc)
-		cifs_dbg(VFS, "could not encrypt crypt key rc: %d\n", rc);
-
-	skcipher_request_free(req);
+	crypto_cipher_setkey(tfm_des, key2, 8);
+	crypto_cipher_encrypt_one(tfm_des, out, in);
+	crypto_free_cipher(tfm_des);
 
-smbhash_free_skcipher:
-	crypto_free_skcipher(tfm_des);
-smbhash_err:
-	return rc;
+	return 0;
 }
 
 static int
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/cifs/transport.c linux-libre-4.9.52-gnu/fs/cifs/transport.c
--- linux-libre-4.9-gnu/fs/cifs/transport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/cifs/transport.c	2017-09-27 08:40:05.000000000 -0400
@@ -727,9 +727,11 @@ SendReceive2(const unsigned int xid, str
 
 	rc = wait_for_response(ses->server, midQ);
 	if (rc != 0) {
+		cifs_dbg(FYI, "Cancelling wait for mid %llu\n",	midQ->mid);
 		send_cancel(ses->server, buf, midQ);
 		spin_lock(&GlobalMid_Lock);
 		if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
+			midQ->mid_flags |= MID_WAIT_CANCELLED;
 			midQ->callback = DeleteMidQEntry;
 			spin_unlock(&GlobalMid_Lock);
 			cifs_small_buf_release(buf);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/configfs/symlink.c linux-libre-4.9.52-gnu/fs/configfs/symlink.c
--- linux-libre-4.9-gnu/fs/configfs/symlink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/configfs/symlink.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,14 +83,13 @@ static int create_link(struct config_ite
 	ret = -ENOMEM;
 	sl = kmalloc(sizeof(struct configfs_symlink), GFP_KERNEL);
 	if (sl) {
-		sl->sl_target = config_item_get(item);
 		spin_lock(&configfs_dirent_lock);
 		if (target_sd->s_type & CONFIGFS_USET_DROPPING) {
 			spin_unlock(&configfs_dirent_lock);
-			config_item_put(item);
 			kfree(sl);
 			return -ENOENT;
 		}
+		sl->sl_target = config_item_get(item);
 		list_add(&sl->sl_list, &target_sd->s_links);
 		spin_unlock(&configfs_dirent_lock);
 		ret = configfs_create_link(sl, parent_item->ci_dentry,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/coredump.c linux-libre-4.9.52-gnu/fs/coredump.c
--- linux-libre-4.9-gnu/fs/coredump.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/coredump.c	2017-09-27 08:40:05.000000000 -0400
@@ -833,3 +833,21 @@ int dump_align(struct coredump_params *c
 	return mod ? dump_skip(cprm, align - mod) : 1;
 }
 EXPORT_SYMBOL(dump_align);
+
+/*
+ * Ensures that file size is big enough to contain the current file
+ * postion. This prevents gdb from complaining about a truncated file
+ * if the last "write" to the file was dump_skip.
+ */
+void dump_truncate(struct coredump_params *cprm)
+{
+	struct file *file = cprm->file;
+	loff_t offset;
+
+	if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
+		offset = file->f_op->llseek(file, 0, SEEK_CUR);
+		if (i_size_read(file->f_mapping->host) < offset)
+			do_truncate(file->f_path.dentry, offset, 0, file);
+	}
+}
+EXPORT_SYMBOL(dump_truncate);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/crypto/crypto.c linux-libre-4.9.52-gnu/fs/crypto/crypto.c
--- linux-libre-4.9-gnu/fs/crypto/crypto.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/crypto/crypto.c	2017-09-27 08:40:05.000000000 -0400
@@ -352,7 +352,6 @@ EXPORT_SYMBOL(fscrypt_zeroout_range);
 static int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
 {
 	struct dentry *dir;
-	struct fscrypt_info *ci;
 	int dir_has_key, cached_with_key;
 
 	if (flags & LOOKUP_RCU)
@@ -364,18 +363,11 @@ static int fscrypt_d_revalidate(struct d
 		return 0;
 	}
 
-	ci = d_inode(dir)->i_crypt_info;
-	if (ci && ci->ci_keyring_key &&
-	    (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |
-					  (1 << KEY_FLAG_REVOKED) |
-					  (1 << KEY_FLAG_DEAD))))
-		ci = NULL;
-
 	/* this should eventually be an flag in d_flags */
 	spin_lock(&dentry->d_lock);
 	cached_with_key = dentry->d_flags & DCACHE_ENCRYPTED_WITH_KEY;
 	spin_unlock(&dentry->d_lock);
-	dir_has_key = (ci != NULL);
+	dir_has_key = (d_inode(dir)->i_crypt_info != NULL);
 	dput(dir);
 
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/crypto/fname.c linux-libre-4.9.52-gnu/fs/crypto/fname.c
--- linux-libre-4.9-gnu/fs/crypto/fname.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/crypto/fname.c	2017-09-27 08:40:05.000000000 -0400
@@ -300,7 +300,7 @@ int fscrypt_fname_disk_to_usr(struct ino
 	} else {
 		memset(buf, 0, 8);
 	}
-	memcpy(buf + 8, iname->name + iname->len - 16, 16);
+	memcpy(buf + 8, iname->name + ((iname->len - 17) & ~15), 16);
 	oname->name[0] = '_';
 	oname->len = 1 + digest_encode(buf, 24, oname->name + 1);
 	return 0;
@@ -350,7 +350,7 @@ int fscrypt_setup_filename(struct inode
 		fname->disk_name.len = iname->len;
 		return 0;
 	}
-	ret = get_crypt_info(dir);
+	ret = fscrypt_get_encryption_info(dir);
 	if (ret && ret != -EOPNOTSUPP)
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/crypto/keyinfo.c linux-libre-4.9.52-gnu/fs/crypto/keyinfo.c
--- linux-libre-4.9-gnu/fs/crypto/keyinfo.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/crypto/keyinfo.c	2017-09-27 08:40:05.000000000 -0400
@@ -99,6 +99,7 @@ static int validate_user_key(struct fscr
 	kfree(full_key_descriptor);
 	if (IS_ERR(keyring_key))
 		return PTR_ERR(keyring_key);
+	down_read(&keyring_key->sem);
 
 	if (keyring_key->type != &key_type_logon) {
 		printk_once(KERN_WARNING
@@ -106,11 +107,9 @@ static int validate_user_key(struct fscr
 		res = -ENOKEY;
 		goto out;
 	}
-	down_read(&keyring_key->sem);
 	ukp = user_key_payload(keyring_key);
 	if (ukp->datalen != sizeof(struct fscrypt_key)) {
 		res = -EINVAL;
-		up_read(&keyring_key->sem);
 		goto out;
 	}
 	master_key = (struct fscrypt_key *)ukp->data;
@@ -121,17 +120,11 @@ static int validate_user_key(struct fscr
 				"%s: key size incorrect: %d\n",
 				__func__, master_key->size);
 		res = -ENOKEY;
-		up_read(&keyring_key->sem);
 		goto out;
 	}
 	res = derive_key_aes(ctx->nonce, master_key->raw, raw_key);
-	up_read(&keyring_key->sem);
-	if (res)
-		goto out;
-
-	crypt_info->ci_keyring_key = keyring_key;
-	return 0;
 out:
+	up_read(&keyring_key->sem);
 	key_put(keyring_key);
 	return res;
 }
@@ -173,12 +166,11 @@ static void put_crypt_info(struct fscryp
 	if (!ci)
 		return;
 
-	key_put(ci->ci_keyring_key);
 	crypto_free_skcipher(ci->ci_ctfm);
 	kmem_cache_free(fscrypt_info_cachep, ci);
 }
 
-int get_crypt_info(struct inode *inode)
+int fscrypt_get_encryption_info(struct inode *inode)
 {
 	struct fscrypt_info *crypt_info;
 	struct fscrypt_context ctx;
@@ -188,21 +180,15 @@ int get_crypt_info(struct inode *inode)
 	u8 *raw_key = NULL;
 	int res;
 
+	if (inode->i_crypt_info)
+		return 0;
+
 	res = fscrypt_initialize();
 	if (res)
 		return res;
 
 	if (!inode->i_sb->s_cop->get_context)
 		return -EOPNOTSUPP;
-retry:
-	crypt_info = ACCESS_ONCE(inode->i_crypt_info);
-	if (crypt_info) {
-		if (!crypt_info->ci_keyring_key ||
-				key_validate(crypt_info->ci_keyring_key) == 0)
-			return 0;
-		fscrypt_put_encryption_info(inode, crypt_info);
-		goto retry;
-	}
 
 	res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
 	if (res < 0) {
@@ -230,7 +216,6 @@ retry:
 	crypt_info->ci_data_mode = ctx.contents_encryption_mode;
 	crypt_info->ci_filename_mode = ctx.filenames_encryption_mode;
 	crypt_info->ci_ctfm = NULL;
-	crypt_info->ci_keyring_key = NULL;
 	memcpy(crypt_info->ci_master_key, ctx.master_key_descriptor,
 				sizeof(crypt_info->ci_master_key));
 
@@ -285,14 +270,8 @@ got_key:
 	if (res)
 		goto out;
 
-	kzfree(raw_key);
-	raw_key = NULL;
-	if (cmpxchg(&inode->i_crypt_info, NULL, crypt_info) != NULL) {
-		put_crypt_info(crypt_info);
-		goto retry;
-	}
-	return 0;
-
+	if (cmpxchg(&inode->i_crypt_info, NULL, crypt_info) == NULL)
+		crypt_info = NULL;
 out:
 	if (res == -ENOKEY)
 		res = 0;
@@ -300,6 +279,7 @@ out:
 	kzfree(raw_key);
 	return res;
 }
+EXPORT_SYMBOL(fscrypt_get_encryption_info);
 
 void fscrypt_put_encryption_info(struct inode *inode, struct fscrypt_info *ci)
 {
@@ -317,17 +297,3 @@ void fscrypt_put_encryption_info(struct
 	put_crypt_info(ci);
 }
 EXPORT_SYMBOL(fscrypt_put_encryption_info);
-
-int fscrypt_get_encryption_info(struct inode *inode)
-{
-	struct fscrypt_info *ci = inode->i_crypt_info;
-
-	if (!ci ||
-		(ci->ci_keyring_key &&
-		 (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |
-					       (1 << KEY_FLAG_REVOKED) |
-					       (1 << KEY_FLAG_DEAD)))))
-		return get_crypt_info(inode);
-	return 0;
-}
-EXPORT_SYMBOL(fscrypt_get_encryption_info);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/crypto/policy.c linux-libre-4.9.52-gnu/fs/crypto/policy.c
--- linux-libre-4.9-gnu/fs/crypto/policy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/crypto/policy.c	2017-09-27 08:40:05.000000000 -0400
@@ -161,22 +161,61 @@ int fscrypt_get_policy(struct inode *ino
 }
 EXPORT_SYMBOL(fscrypt_get_policy);
 
+/**
+ * fscrypt_has_permitted_context() - is a file's encryption policy permitted
+ *				     within its directory?
+ *
+ * @parent: inode for parent directory
+ * @child: inode for file being looked up, opened, or linked into @parent
+ *
+ * Filesystems must call this before permitting access to an inode in a
+ * situation where the parent directory is encrypted (either before allowing
+ * ->lookup() to succeed, or for a regular file before allowing it to be opened)
+ * and before any operation that involves linking an inode into an encrypted
+ * directory, including link, rename, and cross rename.  It enforces the
+ * constraint that within a given encrypted directory tree, all files use the
+ * same encryption policy.  The pre-access check is needed to detect potentially
+ * malicious offline violations of this constraint, while the link and rename
+ * checks are needed to prevent online violations of this constraint.
+ *
+ * Return: 1 if permitted, 0 if forbidden.  If forbidden, the caller must fail
+ * the filesystem operation with EPERM.
+ */
 int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
 {
-	struct fscrypt_info *parent_ci, *child_ci;
+	const struct fscrypt_operations *cops = parent->i_sb->s_cop;
+	const struct fscrypt_info *parent_ci, *child_ci;
+	struct fscrypt_context parent_ctx, child_ctx;
 	int res;
 
-	if ((parent == NULL) || (child == NULL)) {
-		printk(KERN_ERR	"parent %p child %p\n", parent, child);
-		BUG_ON(1);
-	}
+	/* No restrictions on file types which are never encrypted */
+	if (!S_ISREG(child->i_mode) && !S_ISDIR(child->i_mode) &&
+	    !S_ISLNK(child->i_mode))
+		return 1;
 
-	/* no restrictions if the parent directory is not encrypted */
-	if (!parent->i_sb->s_cop->is_encrypted(parent))
+	/* No restrictions if the parent directory is unencrypted */
+	if (!cops->is_encrypted(parent))
 		return 1;
-	/* if the child directory is not encrypted, this is always a problem */
-	if (!parent->i_sb->s_cop->is_encrypted(child))
+
+	/* Encrypted directories must not contain unencrypted files */
+	if (!cops->is_encrypted(child))
 		return 0;
+
+	/*
+	 * Both parent and child are encrypted, so verify they use the same
+	 * encryption policy.  Compare the fscrypt_info structs if the keys are
+	 * available, otherwise retrieve and compare the fscrypt_contexts.
+	 *
+	 * Note that the fscrypt_context retrieval will be required frequently
+	 * when accessing an encrypted directory tree without the key.
+	 * Performance-wise this is not a big deal because we already don't
+	 * really optimize for file access without the key (to the extent that
+	 * such access is even possible), given that any attempted access
+	 * already causes a fscrypt_context retrieval and keyring search.
+	 *
+	 * In any case, if an unexpected error occurs, fall back to "forbidden".
+	 */
+
 	res = fscrypt_get_encryption_info(parent);
 	if (res)
 		return 0;
@@ -185,17 +224,32 @@ int fscrypt_has_permitted_context(struct
 		return 0;
 	parent_ci = parent->i_crypt_info;
 	child_ci = child->i_crypt_info;
-	if (!parent_ci && !child_ci)
-		return 1;
-	if (!parent_ci || !child_ci)
+
+	if (parent_ci && child_ci) {
+		return memcmp(parent_ci->ci_master_key, child_ci->ci_master_key,
+			      FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+			(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
+			(parent_ci->ci_filename_mode ==
+			 child_ci->ci_filename_mode) &&
+			(parent_ci->ci_flags == child_ci->ci_flags);
+	}
+
+	res = cops->get_context(parent, &parent_ctx, sizeof(parent_ctx));
+	if (res != sizeof(parent_ctx))
 		return 0;
 
-	return (memcmp(parent_ci->ci_master_key,
-			child_ci->ci_master_key,
-			FS_KEY_DESCRIPTOR_SIZE) == 0 &&
-		(parent_ci->ci_data_mode == child_ci->ci_data_mode) &&
-		(parent_ci->ci_filename_mode == child_ci->ci_filename_mode) &&
-		(parent_ci->ci_flags == child_ci->ci_flags));
+	res = cops->get_context(child, &child_ctx, sizeof(child_ctx));
+	if (res != sizeof(child_ctx))
+		return 0;
+
+	return memcmp(parent_ctx.master_key_descriptor,
+		      child_ctx.master_key_descriptor,
+		      FS_KEY_DESCRIPTOR_SIZE) == 0 &&
+		(parent_ctx.contents_encryption_mode ==
+		 child_ctx.contents_encryption_mode) &&
+		(parent_ctx.filenames_encryption_mode ==
+		 child_ctx.filenames_encryption_mode) &&
+		(parent_ctx.flags == child_ctx.flags);
 }
 EXPORT_SYMBOL(fscrypt_has_permitted_context);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/dax.c linux-libre-4.9.52-gnu/fs/dax.c
--- linux-libre-4.9-gnu/fs/dax.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/dax.c	2017-09-27 08:40:05.000000000 -0400
@@ -1270,6 +1270,11 @@ iomap_dax_actor(struct inode *inode, lof
 		struct blk_dax_ctl dax = { 0 };
 		ssize_t map_len;
 
+		if (fatal_signal_pending(current)) {
+			ret = -EINTR;
+			break;
+		}
+
 		dax.sector = iomap->blkno +
 			(((pos & PAGE_MASK) - iomap->offset) >> 9);
 		dax.size = (length + offset + PAGE_SIZE - 1) & PAGE_MASK;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/dcache.c linux-libre-4.9.52-gnu/fs/dcache.c
--- linux-libre-4.9-gnu/fs/dcache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/dcache.c	2017-09-27 08:40:05.000000000 -0400
@@ -277,6 +277,33 @@ static inline int dname_external(const s
 	return dentry->d_name.name != dentry->d_iname;
 }
 
+void take_dentry_name_snapshot(struct name_snapshot *name, struct dentry *dentry)
+{
+	spin_lock(&dentry->d_lock);
+	if (unlikely(dname_external(dentry))) {
+		struct external_name *p = external_name(dentry);
+		atomic_inc(&p->u.count);
+		spin_unlock(&dentry->d_lock);
+		name->name = p->name;
+	} else {
+		memcpy(name->inline_name, dentry->d_iname, DNAME_INLINE_LEN);
+		spin_unlock(&dentry->d_lock);
+		name->name = name->inline_name;
+	}
+}
+EXPORT_SYMBOL(take_dentry_name_snapshot);
+
+void release_dentry_name_snapshot(struct name_snapshot *name)
+{
+	if (unlikely(name->name != name->inline_name)) {
+		struct external_name *p;
+		p = container_of(name->name, struct external_name, name[0]);
+		if (unlikely(atomic_dec_and_test(&p->u.count)))
+			kfree_rcu(p, u.head);
+	}
+}
+EXPORT_SYMBOL(release_dentry_name_snapshot);
+
 static inline void __d_set_inode_and_type(struct dentry *dentry,
 					  struct inode *inode,
 					  unsigned type_flags)
@@ -1133,11 +1160,12 @@ void shrink_dcache_sb(struct super_block
 		LIST_HEAD(dispose);
 
 		freed = list_lru_walk(&sb->s_dentry_lru,
-			dentry_lru_isolate_shrink, &dispose, UINT_MAX);
+			dentry_lru_isolate_shrink, &dispose, 1024);
 
 		this_cpu_sub(nr_dentry_unused, freed);
 		shrink_dentry_list(&dispose);
-	} while (freed > 0);
+		cond_resched();
+	} while (list_lru_count(&sb->s_dentry_lru) > 0);
 }
 EXPORT_SYMBOL(shrink_dcache_sb);
 
@@ -1330,8 +1358,11 @@ int d_set_mounted(struct dentry *dentry)
 	}
 	spin_lock(&dentry->d_lock);
 	if (!d_unlinked(dentry)) {
-		dentry->d_flags |= DCACHE_MOUNTED;
-		ret = 0;
+		ret = -EBUSY;
+		if (!d_mountpoint(dentry)) {
+			dentry->d_flags |= DCACHE_MOUNTED;
+			ret = 0;
+		}
 	}
  	spin_unlock(&dentry->d_lock);
 out:
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/debugfs/inode.c linux-libre-4.9.52-gnu/fs/debugfs/inode.c
--- linux-libre-4.9-gnu/fs/debugfs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/debugfs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -187,9 +187,9 @@ static const struct super_operations deb
 
 static struct vfsmount *debugfs_automount(struct path *path)
 {
-	struct vfsmount *(*f)(void *);
-	f = (struct vfsmount *(*)(void *))path->dentry->d_fsdata;
-	return f(d_inode(path->dentry)->i_private);
+	debugfs_automount_t f;
+	f = (debugfs_automount_t)path->dentry->d_fsdata;
+	return f(path->dentry, d_inode(path->dentry)->i_private);
 }
 
 static const struct dentry_operations debugfs_dops = {
@@ -504,7 +504,7 @@ EXPORT_SYMBOL_GPL(debugfs_create_dir);
  */
 struct dentry *debugfs_create_automount(const char *name,
 					struct dentry *parent,
-					struct vfsmount *(*f)(void *),
+					debugfs_automount_t f,
 					void *data)
 {
 	struct dentry *dentry = start_creating(name, parent);
@@ -730,7 +730,7 @@ struct dentry *debugfs_rename(struct den
 {
 	int error;
 	struct dentry *dentry = NULL, *trap;
-	const char *old_name;
+	struct name_snapshot old_name;
 
 	trap = lock_rename(new_dir, old_dir);
 	/* Source or destination directories don't exist? */
@@ -745,19 +745,19 @@ struct dentry *debugfs_rename(struct den
 	if (IS_ERR(dentry) || dentry == trap || d_really_is_positive(dentry))
 		goto exit;
 
-	old_name = fsnotify_oldname_init(old_dentry->d_name.name);
+	take_dentry_name_snapshot(&old_name, old_dentry);
 
 	error = simple_rename(d_inode(old_dir), old_dentry, d_inode(new_dir),
 			      dentry, 0);
 	if (error) {
-		fsnotify_oldname_free(old_name);
+		release_dentry_name_snapshot(&old_name);
 		goto exit;
 	}
 	d_move(old_dentry, dentry);
-	fsnotify_move(d_inode(old_dir), d_inode(new_dir), old_name,
+	fsnotify_move(d_inode(old_dir), d_inode(new_dir), old_name.name,
 		d_is_dir(old_dentry),
 		NULL, old_dentry);
-	fsnotify_oldname_free(old_name);
+	release_dentry_name_snapshot(&old_name);
 	unlock_rename(new_dir, old_dir);
 	dput(dentry);
 	return old_dentry;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/direct-io.c linux-libre-4.9.52-gnu/fs/direct-io.c
--- linux-libre-4.9-gnu/fs/direct-io.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/direct-io.c	2017-09-27 08:40:05.000000000 -0400
@@ -587,7 +587,7 @@ static int dio_set_defer_completion(stru
 /*
  * Call into the fs to map some more disk blocks.  We record the current number
  * of available blocks at sdio->blocks_available.  These are in units of the
- * fs blocksize, (1 << inode->i_blkbits).
+ * fs blocksize, i_blocksize(inode).
  *
  * The fs is allowed to map lots of blocks at once.  If it wants to do that,
  * it uses the passed inode-relative block number as the file offset, as usual.
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/dlm/user.c linux-libre-4.9.52-gnu/fs/dlm/user.c
--- linux-libre-4.9-gnu/fs/dlm/user.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/dlm/user.c	2017-09-27 08:40:05.000000000 -0400
@@ -355,6 +355,10 @@ static int dlm_device_register(struct dl
 	error = misc_register(&ls->ls_device);
 	if (error) {
 		kfree(ls->ls_device.name);
+		/* this has to be set to NULL
+		 * to avoid a double-free in dlm_device_deregister
+		 */
+		ls->ls_device.name = NULL;
 	}
 fail:
 	return error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/eventpoll.c linux-libre-4.9.52-gnu/fs/eventpoll.c
--- linux-libre-4.9-gnu/fs/eventpoll.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/eventpoll.c	2017-09-27 08:40:05.000000000 -0400
@@ -523,8 +523,13 @@ static void ep_remove_wait_queue(struct
 	wait_queue_head_t *whead;
 
 	rcu_read_lock();
-	/* If it is cleared by POLLFREE, it should be rcu-safe */
-	whead = rcu_dereference(pwq->whead);
+	/*
+	 * If it is cleared by POLLFREE, it should be rcu-safe.
+	 * If we read NULL we need a barrier paired with
+	 * smp_store_release() in ep_poll_callback(), otherwise
+	 * we rely on whead->lock.
+	 */
+	whead = smp_load_acquire(&pwq->whead);
 	if (whead)
 		remove_wait_queue(whead, &pwq->wait);
 	rcu_read_unlock();
@@ -1009,17 +1014,6 @@ static int ep_poll_callback(wait_queue_t
 	struct eventpoll *ep = epi->ep;
 	int ewake = 0;
 
-	if ((unsigned long)key & POLLFREE) {
-		ep_pwq_from_wait(wait)->whead = NULL;
-		/*
-		 * whead = NULL above can race with ep_remove_wait_queue()
-		 * which can do another remove_wait_queue() after us, so we
-		 * can't use __remove_wait_queue(). whead->lock is held by
-		 * the caller.
-		 */
-		list_del_init(&wait->task_list);
-	}
-
 	spin_lock_irqsave(&ep->lock, flags);
 
 	/*
@@ -1101,10 +1095,26 @@ out_unlock:
 	if (pwake)
 		ep_poll_safewake(&ep->poll_wait);
 
-	if (epi->event.events & EPOLLEXCLUSIVE)
-		return ewake;
+	if (!(epi->event.events & EPOLLEXCLUSIVE))
+		ewake = 1;
 
-	return 1;
+	if ((unsigned long)key & POLLFREE) {
+		/*
+		 * If we race with ep_remove_wait_queue() it can miss
+		 * ->whead = NULL and do another remove_wait_queue() after
+		 * us, so we can't use __remove_wait_queue().
+		 */
+		list_del_init(&wait->task_list);
+		/*
+		 * ->whead != NULL protects us from the race with ep_free()
+		 * or ep_remove(), ep_remove_wait_queue() takes whead->lock
+		 * held by the caller. Once we nullify it, nothing protects
+		 * ep/epi or even wait.
+		 */
+		smp_store_release(&ep_pwq_from_wait(wait)->whead, NULL);
+	}
+
+	return ewake;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/exec.c linux-libre-4.9.52-gnu/fs/exec.c
--- linux-libre-4.9-gnu/fs/exec.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/exec.c	2017-09-27 08:40:05.000000000 -0400
@@ -19,7 +19,7 @@
  * current->executable is only used by the procfs.  This allows a dispatch
  * table to check for several different types  of binary formats.  We keep
  * trying until we recognize the file or we run out of supported binary
- * formats. 
+ * formats.
  */
 
 #include <linux/slab.h>
@@ -215,7 +215,24 @@ static struct page *get_arg_page(struct
 
 	if (write) {
 		unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start;
-		struct rlimit *rlim;
+		unsigned long ptr_size, limit;
+
+		/*
+		 * Since the stack will hold pointers to the strings, we
+		 * must account for them as well.
+		 *
+		 * The size calculation is the entire vma while each arg page is
+		 * built, so each time we get here it's calculating how far it
+		 * is currently (rather than each call being just the newly
+		 * added size from the arg page).  As a result, we need to
+		 * always add the entire size of the pointers, so that on the
+		 * last call to get_arg_page() we'll actually have the entire
+		 * correct size.
+		 */
+		ptr_size = (bprm->argc + bprm->envc) * sizeof(void *);
+		if (ptr_size > ULONG_MAX - size)
+			goto fail;
+		size += ptr_size;
 
 		acct_arg_size(bprm, size / PAGE_SIZE);
 
@@ -227,20 +244,24 @@ static struct page *get_arg_page(struct
 			return page;
 
 		/*
-		 * Limit to 1/4-th the stack size for the argv+env strings.
+		 * Limit to 1/4 of the max stack size or 3/4 of _STK_LIM
+		 * (whichever is smaller) for the argv+env strings.
 		 * This ensures that:
 		 *  - the remaining binfmt code will not run out of stack space,
 		 *  - the program will have a reasonable amount of stack left
 		 *    to work from.
 		 */
-		rlim = current->signal->rlim;
-		if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur) / 4) {
-			put_page(page);
-			return NULL;
-		}
+		limit = _STK_LIM / 4 * 3;
+		limit = min(limit, rlimit(RLIMIT_STACK) / 4);
+		if (size > limit)
+			goto fail;
 	}
 
 	return page;
+
+fail:
+	put_page(page);
+	return NULL;
 }
 
 static void put_arg_page(struct page *page)
@@ -1266,6 +1287,13 @@ int flush_old_exec(struct linux_binprm *
 	flush_thread();
 	current->personality &= ~bprm->per_clear;
 
+	/*
+	 * We have to apply CLOEXEC before we change whether the process is
+	 * dumpable (in setup_new_exec) to avoid a race with a process in userspace
+	 * trying to access the should-be-closed file descriptors of a process
+	 * undergoing exec(2).
+	 */
+	do_close_on_exec(current->files);
 	return 0;
 
 out:
@@ -1275,8 +1303,22 @@ EXPORT_SYMBOL(flush_old_exec);
 
 void would_dump(struct linux_binprm *bprm, struct file *file)
 {
-	if (inode_permission(file_inode(file), MAY_READ) < 0)
+	struct inode *inode = file_inode(file);
+	if (inode_permission(inode, MAY_READ) < 0) {
+		struct user_namespace *old, *user_ns;
 		bprm->interp_flags |= BINPRM_FLAGS_ENFORCE_NONDUMP;
+
+		/* Ensure mm->user_ns contains the executable */
+		user_ns = old = bprm->mm->user_ns;
+		while ((user_ns != &init_user_ns) &&
+		       !privileged_wrt_inode_uidgid(user_ns, inode))
+			user_ns = user_ns->parent;
+
+		if (old != user_ns) {
+			bprm->mm->user_ns = get_user_ns(user_ns);
+			put_user_ns(old);
+		}
+	}
 }
 EXPORT_SYMBOL(would_dump);
 
@@ -1306,7 +1348,6 @@ void setup_new_exec(struct linux_binprm
 	    !gid_eq(bprm->cred->gid, current_egid())) {
 		current->pdeath_signal = 0;
 	} else {
-		would_dump(bprm, bprm->file);
 		if (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)
 			set_dumpable(current->mm, suid_dumpable);
 	}
@@ -1315,7 +1356,6 @@ void setup_new_exec(struct linux_binprm
 	   group */
 	current->self_exec_id++;
 	flush_signal_handlers(current, 0);
-	do_close_on_exec(current->files);
 }
 EXPORT_SYMBOL(setup_new_exec);
 
@@ -1406,7 +1446,7 @@ static void check_unsafe_exec(struct lin
 	unsigned n_fs;
 
 	if (p->ptrace) {
-		if (p->ptrace & PT_PTRACE_CAP)
+		if (ptracer_capable(p, current_user_ns()))
 			bprm->unsafe |= LSM_UNSAFE_PTRACE_CAP;
 		else
 			bprm->unsafe |= LSM_UNSAFE_PTRACE;
@@ -1741,6 +1781,8 @@ static int do_execveat_common(int fd, st
 	if (retval < 0)
 		goto out;
 
+	would_dump(bprm, bprm->file);
+
 	retval = exec_binprm(bprm);
 	if (retval < 0)
 		goto out;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext2/acl.c linux-libre-4.9.52-gnu/fs/ext2/acl.c
--- linux-libre-4.9-gnu/fs/ext2/acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext2/acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -175,11 +175,8 @@ ext2_get_acl(struct inode *inode, int ty
 	return acl;
 }
 
-/*
- * inode->i_mutex: down
- */
-int
-ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+static int
+__ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 {
 	int name_index;
 	void *value = NULL;
@@ -189,13 +186,6 @@ ext2_set_acl(struct inode *inode, struct
 	switch(type) {
 		case ACL_TYPE_ACCESS:
 			name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
-			if (acl) {
-				error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-				if (error)
-					return error;
-				inode->i_ctime = current_time(inode);
-				mark_inode_dirty(inode);
-			}
 			break;
 
 		case ACL_TYPE_DEFAULT:
@@ -222,6 +212,24 @@ ext2_set_acl(struct inode *inode, struct
 }
 
 /*
+ * inode->i_mutex: down
+ */
+int
+ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+	int error;
+
+	if (type == ACL_TYPE_ACCESS && acl) {
+		error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+		if (error)
+			return error;
+		inode->i_ctime = current_time(inode);
+		mark_inode_dirty(inode);
+	}
+	return __ext2_set_acl(inode, acl, type);
+}
+
+/*
  * Initialize the ACLs of a new inode. Called from ext2_new_inode.
  *
  * dir->i_mutex: down
@@ -238,12 +246,12 @@ ext2_init_acl(struct inode *inode, struc
 		return error;
 
 	if (default_acl) {
-		error = ext2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
+		error = __ext2_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
 		posix_acl_release(default_acl);
 	}
 	if (acl) {
 		if (!error)
-			error = ext2_set_acl(inode, acl, ACL_TYPE_ACCESS);
+			error = __ext2_set_acl(inode, acl, ACL_TYPE_ACCESS);
 		posix_acl_release(acl);
 	}
 	return error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/ext4_jbd2.h linux-libre-4.9.52-gnu/fs/ext4/ext4_jbd2.h
--- linux-libre-4.9-gnu/fs/ext4/ext4_jbd2.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/ext4_jbd2.h	2017-09-27 08:40:05.000000000 -0400
@@ -414,17 +414,19 @@ static inline int ext4_inode_journal_mod
 		return EXT4_INODE_WRITEBACK_DATA_MODE;	/* writeback */
 	/* We do not support data journalling with delayed allocation */
 	if (!S_ISREG(inode->i_mode) ||
-	    test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
-		return EXT4_INODE_JOURNAL_DATA_MODE;	/* journal data */
-	if (ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
-	    !test_opt(inode->i_sb, DELALLOC))
+	    test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ||
+	    (ext4_test_inode_flag(inode, EXT4_INODE_JOURNAL_DATA) &&
+	    !test_opt(inode->i_sb, DELALLOC))) {
+		/* We do not support data journalling for encrypted data */
+		if (S_ISREG(inode->i_mode) && ext4_encrypted_inode(inode))
+			return EXT4_INODE_ORDERED_DATA_MODE;  /* ordered */
 		return EXT4_INODE_JOURNAL_DATA_MODE;	/* journal data */
+	}
 	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
 		return EXT4_INODE_ORDERED_DATA_MODE;	/* ordered */
 	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
 		return EXT4_INODE_WRITEBACK_DATA_MODE;	/* writeback */
-	else
-		BUG();
+	BUG();
 }
 
 static inline int ext4_should_journal_data(struct inode *inode)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/extents.c linux-libre-4.9.52-gnu/fs/ext4/extents.c
--- linux-libre-4.9-gnu/fs/ext4/extents.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/extents.c	2017-09-27 08:40:05.000000000 -0400
@@ -3413,13 +3413,13 @@ static int ext4_ext_convert_to_initializ
 	struct ext4_sb_info *sbi;
 	struct ext4_extent_header *eh;
 	struct ext4_map_blocks split_map;
-	struct ext4_extent zero_ex;
+	struct ext4_extent zero_ex1, zero_ex2;
 	struct ext4_extent *ex, *abut_ex;
 	ext4_lblk_t ee_block, eof_block;
 	unsigned int ee_len, depth, map_len = map->m_len;
 	int allocated = 0, max_zeroout = 0;
 	int err = 0;
-	int split_flag = 0;
+	int split_flag = EXT4_EXT_DATA_VALID2;
 
 	ext_debug("ext4_ext_convert_to_initialized: inode %lu, logical"
 		"block %llu, max_blocks %u\n", inode->i_ino,
@@ -3436,7 +3436,8 @@ static int ext4_ext_convert_to_initializ
 	ex = path[depth].p_ext;
 	ee_block = le32_to_cpu(ex->ee_block);
 	ee_len = ext4_ext_get_actual_len(ex);
-	zero_ex.ee_len = 0;
+	zero_ex1.ee_len = 0;
+	zero_ex2.ee_len = 0;
 
 	trace_ext4_ext_convert_to_initialized_enter(inode, map, ex);
 
@@ -3576,62 +3577,52 @@ static int ext4_ext_convert_to_initializ
 	if (ext4_encrypted_inode(inode))
 		max_zeroout = 0;
 
-	/* If extent is less than s_max_zeroout_kb, zeroout directly */
-	if (max_zeroout && (ee_len <= max_zeroout)) {
-		err = ext4_ext_zeroout(inode, ex);
-		if (err)
-			goto out;
-		zero_ex.ee_block = ex->ee_block;
-		zero_ex.ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex));
-		ext4_ext_store_pblock(&zero_ex, ext4_ext_pblock(ex));
-
-		err = ext4_ext_get_access(handle, inode, path + depth);
-		if (err)
-			goto out;
-		ext4_ext_mark_initialized(ex);
-		ext4_ext_try_to_merge(handle, inode, path, ex);
-		err = ext4_ext_dirty(handle, inode, path + path->p_depth);
-		goto out;
-	}
-
 	/*
-	 * four cases:
+	 * five cases:
 	 * 1. split the extent into three extents.
-	 * 2. split the extent into two extents, zeroout the first half.
-	 * 3. split the extent into two extents, zeroout the second half.
+	 * 2. split the extent into two extents, zeroout the head of the first
+	 *    extent.
+	 * 3. split the extent into two extents, zeroout the tail of the second
+	 *    extent.
 	 * 4. split the extent into two extents with out zeroout.
+	 * 5. no splitting needed, just possibly zeroout the head and / or the
+	 *    tail of the extent.
 	 */
 	split_map.m_lblk = map->m_lblk;
 	split_map.m_len = map->m_len;
 
-	if (max_zeroout && (allocated > map->m_len)) {
+	if (max_zeroout && (allocated > split_map.m_len)) {
 		if (allocated <= max_zeroout) {
-			/* case 3 */
-			zero_ex.ee_block =
-					 cpu_to_le32(map->m_lblk);
-			zero_ex.ee_len = cpu_to_le16(allocated);
-			ext4_ext_store_pblock(&zero_ex,
-				ext4_ext_pblock(ex) + map->m_lblk - ee_block);
-			err = ext4_ext_zeroout(inode, &zero_ex);
+			/* case 3 or 5 */
+			zero_ex1.ee_block =
+				 cpu_to_le32(split_map.m_lblk +
+					     split_map.m_len);
+			zero_ex1.ee_len =
+				cpu_to_le16(allocated - split_map.m_len);
+			ext4_ext_store_pblock(&zero_ex1,
+				ext4_ext_pblock(ex) + split_map.m_lblk +
+				split_map.m_len - ee_block);
+			err = ext4_ext_zeroout(inode, &zero_ex1);
 			if (err)
 				goto out;
-			split_map.m_lblk = map->m_lblk;
 			split_map.m_len = allocated;
-		} else if (map->m_lblk - ee_block + map->m_len < max_zeroout) {
-			/* case 2 */
-			if (map->m_lblk != ee_block) {
-				zero_ex.ee_block = ex->ee_block;
-				zero_ex.ee_len = cpu_to_le16(map->m_lblk -
+		}
+		if (split_map.m_lblk - ee_block + split_map.m_len <
+								max_zeroout) {
+			/* case 2 or 5 */
+			if (split_map.m_lblk != ee_block) {
+				zero_ex2.ee_block = ex->ee_block;
+				zero_ex2.ee_len = cpu_to_le16(split_map.m_lblk -
 							ee_block);
-				ext4_ext_store_pblock(&zero_ex,
+				ext4_ext_store_pblock(&zero_ex2,
 						      ext4_ext_pblock(ex));
-				err = ext4_ext_zeroout(inode, &zero_ex);
+				err = ext4_ext_zeroout(inode, &zero_ex2);
 				if (err)
 					goto out;
 			}
 
+			split_map.m_len += split_map.m_lblk - ee_block;
 			split_map.m_lblk = ee_block;
-			split_map.m_len = map->m_lblk - ee_block + map->m_len;
 			allocated = map->m_len;
 		}
 	}
@@ -3642,8 +3633,11 @@ static int ext4_ext_convert_to_initializ
 		err = 0;
 out:
 	/* If we have gotten a failure, don't zero out status tree */
-	if (!err)
-		err = ext4_zeroout_es(inode, &zero_ex);
+	if (!err) {
+		err = ext4_zeroout_es(inode, &zero_ex1);
+		if (!err)
+			err = ext4_zeroout_es(inode, &zero_ex2);
+	}
 	return err ? err : allocated;
 }
 
@@ -4893,6 +4887,8 @@ static long ext4_zero_range(struct file
 
 	/* Zero out partial block at the edges of the range */
 	ret = ext4_zero_partial_blocks(handle, inode, offset, len);
+	if (ret >= 0)
+		ext4_update_inode_fsync_trans(handle, inode, 1);
 
 	if (file->f_flags & O_SYNC)
 		ext4_handle_sync(handle);
@@ -5344,7 +5340,8 @@ ext4_ext_shift_extents(struct inode *ino
 	ext4_lblk_t stop, *iterator, ex_start, ex_end;
 
 	/* Let path point to the last extent */
-	path = ext4_find_extent(inode, EXT_MAX_BLOCKS - 1, NULL, 0);
+	path = ext4_find_extent(inode, EXT_MAX_BLOCKS - 1, NULL,
+				EXT4_EX_NOCACHE);
 	if (IS_ERR(path))
 		return PTR_ERR(path);
 
@@ -5353,15 +5350,15 @@ ext4_ext_shift_extents(struct inode *ino
 	if (!extent)
 		goto out;
 
-	stop = le32_to_cpu(extent->ee_block) +
-			ext4_ext_get_actual_len(extent);
+	stop = le32_to_cpu(extent->ee_block);
 
        /*
 	 * In case of left shift, Don't start shifting extents until we make
 	 * sure the hole is big enough to accommodate the shift.
 	*/
 	if (SHIFT == SHIFT_LEFT) {
-		path = ext4_find_extent(inode, start - 1, &path, 0);
+		path = ext4_find_extent(inode, start - 1, &path,
+					EXT4_EX_NOCACHE);
 		if (IS_ERR(path))
 			return PTR_ERR(path);
 		depth = path->p_depth;
@@ -5393,9 +5390,14 @@ ext4_ext_shift_extents(struct inode *ino
 	else
 		iterator = &stop;
 
-	/* Its safe to start updating extents */
-	while (start < stop) {
-		path = ext4_find_extent(inode, *iterator, &path, 0);
+	/*
+	 * Its safe to start updating extents.  Start and stop are unsigned, so
+	 * in case of right shift if extent with 0 block is reached, iterator
+	 * becomes NULL to indicate the end of the loop.
+	 */
+	while (iterator && start <= stop) {
+		path = ext4_find_extent(inode, *iterator, &path,
+					EXT4_EX_NOCACHE);
 		if (IS_ERR(path))
 			return PTR_ERR(path);
 		depth = path->p_depth;
@@ -5422,8 +5424,11 @@ ext4_ext_shift_extents(struct inode *ino
 					ext4_ext_get_actual_len(extent);
 		} else {
 			extent = EXT_FIRST_EXTENT(path[depth].p_hdr);
-			*iterator =  le32_to_cpu(extent->ee_block) > 0 ?
-				le32_to_cpu(extent->ee_block) - 1 : 0;
+			if (le32_to_cpu(extent->ee_block) > 0)
+				*iterator = le32_to_cpu(extent->ee_block) - 1;
+			else
+				/* Beginning is reached, end of the loop */
+				iterator = NULL;
 			/* Update path extent in case we need to stop */
 			while (le32_to_cpu(extent->ee_block) < start)
 				extent++;
@@ -5570,6 +5575,7 @@ int ext4_collapse_range(struct inode *in
 		ext4_handle_sync(handle);
 	inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
 	ext4_mark_inode_dirty(handle, inode);
+	ext4_update_inode_fsync_trans(handle, inode, 1);
 
 out_stop:
 	ext4_journal_stop(handle);
@@ -5743,6 +5749,8 @@ int ext4_insert_range(struct inode *inod
 	up_write(&EXT4_I(inode)->i_data_sem);
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
+	if (ret >= 0)
+		ext4_update_inode_fsync_trans(handle, inode, 1);
 
 out_stop:
 	ext4_journal_stop(handle);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/file.c linux-libre-4.9.52-gnu/fs/ext4/file.c
--- linux-libre-4.9-gnu/fs/ext4/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -432,47 +432,27 @@ static int ext4_find_unwritten_pgoff(str
 		num = min_t(pgoff_t, end - index, PAGEVEC_SIZE);
 		nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index,
 					  (pgoff_t)num);
-		if (nr_pages == 0) {
-			if (whence == SEEK_DATA)
-				break;
-
-			BUG_ON(whence != SEEK_HOLE);
-			/*
-			 * If this is the first time to go into the loop and
-			 * offset is not beyond the end offset, it will be a
-			 * hole at this offset
-			 */
-			if (lastoff == startoff || lastoff < endoff)
-				found = 1;
-			break;
-		}
-
-		/*
-		 * If this is the first time to go into the loop and
-		 * offset is smaller than the first page offset, it will be a
-		 * hole at this offset.
-		 */
-		if (lastoff == startoff && whence == SEEK_HOLE &&
-		    lastoff < page_offset(pvec.pages[0])) {
-			found = 1;
+		if (nr_pages == 0)
 			break;
-		}
 
 		for (i = 0; i < nr_pages; i++) {
 			struct page *page = pvec.pages[i];
 			struct buffer_head *bh, *head;
 
 			/*
-			 * If the current offset is not beyond the end of given
-			 * range, it will be a hole.
+			 * If current offset is smaller than the page offset,
+			 * there is a hole at this offset.
 			 */
-			if (lastoff < endoff && whence == SEEK_HOLE &&
-			    page->index > end) {
+			if (whence == SEEK_HOLE && lastoff < endoff &&
+			    lastoff < page_offset(pvec.pages[i])) {
 				found = 1;
 				*offset = lastoff;
 				goto out;
 			}
 
+			if (page->index > end)
+				goto out;
+
 			lock_page(page);
 
 			if (unlikely(page->mapping != inode->i_mapping)) {
@@ -489,6 +469,8 @@ static int ext4_find_unwritten_pgoff(str
 				lastoff = page_offset(page);
 				bh = head = page_buffers(page);
 				do {
+					if (lastoff + bh->b_size <= startoff)
+						goto next;
 					if (buffer_uptodate(bh) ||
 					    buffer_unwritten(bh)) {
 						if (whence == SEEK_DATA)
@@ -503,6 +485,7 @@ static int ext4_find_unwritten_pgoff(str
 						unlock_page(page);
 						goto out;
 					}
+next:
 					lastoff += bh->b_size;
 					bh = bh->b_this_page;
 				} while (bh != head);
@@ -512,20 +495,18 @@ static int ext4_find_unwritten_pgoff(str
 			unlock_page(page);
 		}
 
-		/*
-		 * The no. of pages is less than our desired, that would be a
-		 * hole in there.
-		 */
-		if (nr_pages < num && whence == SEEK_HOLE) {
-			found = 1;
-			*offset = lastoff;
+		/* The no. of pages is less than our desired, we are done. */
+		if (nr_pages < num)
 			break;
-		}
 
 		index = pvec.pages[i - 1]->index + 1;
 		pagevec_release(&pvec);
 	} while (index <= end);
 
+	if (whence == SEEK_HOLE && lastoff < endoff) {
+		found = 1;
+		*offset = lastoff;
+	}
 out:
 	pagevec_release(&pvec);
 	return found;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/inline.c linux-libre-4.9.52-gnu/fs/ext4/inline.c
--- linux-libre-4.9-gnu/fs/ext4/inline.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/inline.c	2017-09-27 08:40:05.000000000 -0400
@@ -336,8 +336,10 @@ static int ext4_update_inline_data(handl
 
 	len -= EXT4_MIN_INLINE_DATA_SIZE;
 	value = kzalloc(len, GFP_NOFS);
-	if (!value)
+	if (!value) {
+		error = -ENOMEM;
 		goto out;
+	}
 
 	error = ext4_xattr_ibody_get(inode, i.name_index, i.name,
 				     value, len);
@@ -374,7 +376,7 @@ out:
 static int ext4_prepare_inline_data(handle_t *handle, struct inode *inode,
 				    unsigned int len)
 {
-	int ret, size;
+	int ret, size, no_expand;
 	struct ext4_inode_info *ei = EXT4_I(inode);
 
 	if (!ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA))
@@ -384,15 +386,14 @@ static int ext4_prepare_inline_data(hand
 	if (size < len)
 		return -ENOSPC;
 
-	down_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_lock_xattr(inode, &no_expand);
 
 	if (ei->i_inline_off)
 		ret = ext4_update_inline_data(handle, inode, len);
 	else
 		ret = ext4_create_inline_data(handle, inode, len);
 
-	up_write(&EXT4_I(inode)->xattr_sem);
-
+	ext4_write_unlock_xattr(inode, &no_expand);
 	return ret;
 }
 
@@ -521,7 +522,7 @@ static int ext4_convert_inline_data_to_e
 					      struct inode *inode,
 					      unsigned flags)
 {
-	int ret, needed_blocks;
+	int ret, needed_blocks, no_expand;
 	handle_t *handle = NULL;
 	int retries = 0, sem_held = 0;
 	struct page *page = NULL;
@@ -561,7 +562,7 @@ retry:
 		goto out;
 	}
 
-	down_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_lock_xattr(inode, &no_expand);
 	sem_held = 1;
 	/* If some one has already done this for us, just exit. */
 	if (!ext4_has_inline_data(inode)) {
@@ -598,7 +599,7 @@ retry:
 		put_page(page);
 		page = NULL;
 		ext4_orphan_add(handle, inode);
-		up_write(&EXT4_I(inode)->xattr_sem);
+		ext4_write_unlock_xattr(inode, &no_expand);
 		sem_held = 0;
 		ext4_journal_stop(handle);
 		handle = NULL;
@@ -624,7 +625,7 @@ out:
 		put_page(page);
 	}
 	if (sem_held)
-		up_write(&EXT4_I(inode)->xattr_sem);
+		ext4_write_unlock_xattr(inode, &no_expand);
 	if (handle)
 		ext4_journal_stop(handle);
 	brelse(iloc.bh);
@@ -717,7 +718,7 @@ convert:
 int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
 			       unsigned copied, struct page *page)
 {
-	int ret;
+	int ret, no_expand;
 	void *kaddr;
 	struct ext4_iloc iloc;
 
@@ -735,7 +736,7 @@ int ext4_write_inline_data_end(struct in
 		goto out;
 	}
 
-	down_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_lock_xattr(inode, &no_expand);
 	BUG_ON(!ext4_has_inline_data(inode));
 
 	kaddr = kmap_atomic(page);
@@ -745,7 +746,7 @@ int ext4_write_inline_data_end(struct in
 	/* clear page dirty so that writepages wouldn't work for us. */
 	ClearPageDirty(page);
 
-	up_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_unlock_xattr(inode, &no_expand);
 	brelse(iloc.bh);
 out:
 	return copied;
@@ -756,7 +757,7 @@ ext4_journalled_write_inline_data(struct
 				  unsigned len,
 				  struct page *page)
 {
-	int ret;
+	int ret, no_expand;
 	void *kaddr;
 	struct ext4_iloc iloc;
 
@@ -766,11 +767,11 @@ ext4_journalled_write_inline_data(struct
 		return NULL;
 	}
 
-	down_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_lock_xattr(inode, &no_expand);
 	kaddr = kmap_atomic(page);
 	ext4_write_inline_data(inode, &iloc, kaddr, 0, len);
 	kunmap_atomic(kaddr);
-	up_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_unlock_xattr(inode, &no_expand);
 
 	return iloc.bh;
 }
@@ -932,8 +933,15 @@ int ext4_da_write_inline_data_end(struct
 				  struct page *page)
 {
 	int i_size_changed = 0;
+	int ret;
 
-	copied = ext4_write_inline_data_end(inode, pos, len, copied, page);
+	ret = ext4_write_inline_data_end(inode, pos, len, copied, page);
+	if (ret < 0) {
+		unlock_page(page);
+		put_page(page);
+		return ret;
+	}
+	copied = ret;
 
 	/*
 	 * No need to use i_size_read() here, the i_size
@@ -1149,10 +1157,9 @@ static int ext4_finish_convert_inline_di
 	set_buffer_uptodate(dir_block);
 	err = ext4_handle_dirty_dirent_node(handle, inode, dir_block);
 	if (err)
-		goto out;
+		return err;
 	set_buffer_verified(dir_block);
-out:
-	return err;
+	return ext4_mark_inode_dirty(handle, inode);
 }
 
 static int ext4_convert_inline_data_nolock(handle_t *handle,
@@ -1247,7 +1254,7 @@ out:
 int ext4_try_add_inline_entry(handle_t *handle, struct ext4_filename *fname,
 			      struct inode *dir, struct inode *inode)
 {
-	int ret, inline_size;
+	int ret, inline_size, no_expand;
 	void *inline_start;
 	struct ext4_iloc iloc;
 
@@ -1255,7 +1262,7 @@ int ext4_try_add_inline_entry(handle_t *
 	if (ret)
 		return ret;
 
-	down_write(&EXT4_I(dir)->xattr_sem);
+	ext4_write_lock_xattr(dir, &no_expand);
 	if (!ext4_has_inline_data(dir))
 		goto out;
 
@@ -1301,7 +1308,7 @@ int ext4_try_add_inline_entry(handle_t *
 
 out:
 	ext4_mark_inode_dirty(handle, dir);
-	up_write(&EXT4_I(dir)->xattr_sem);
+	ext4_write_unlock_xattr(dir, &no_expand);
 	brelse(iloc.bh);
 	return ret;
 }
@@ -1661,7 +1668,7 @@ int ext4_delete_inline_entry(handle_t *h
 			     struct buffer_head *bh,
 			     int *has_inline_data)
 {
-	int err, inline_size;
+	int err, inline_size, no_expand;
 	struct ext4_iloc iloc;
 	void *inline_start;
 
@@ -1669,7 +1676,7 @@ int ext4_delete_inline_entry(handle_t *h
 	if (err)
 		return err;
 
-	down_write(&EXT4_I(dir)->xattr_sem);
+	ext4_write_lock_xattr(dir, &no_expand);
 	if (!ext4_has_inline_data(dir)) {
 		*has_inline_data = 0;
 		goto out;
@@ -1703,7 +1710,7 @@ int ext4_delete_inline_entry(handle_t *h
 
 	ext4_show_inline_dir(dir, iloc.bh, inline_start, inline_size);
 out:
-	up_write(&EXT4_I(dir)->xattr_sem);
+	ext4_write_unlock_xattr(dir, &no_expand);
 	brelse(iloc.bh);
 	if (err != -ENOENT)
 		ext4_std_error(dir->i_sb, err);
@@ -1802,11 +1809,11 @@ out:
 
 int ext4_destroy_inline_data(handle_t *handle, struct inode *inode)
 {
-	int ret;
+	int ret, no_expand;
 
-	down_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_lock_xattr(inode, &no_expand);
 	ret = ext4_destroy_inline_data_nolock(handle, inode);
-	up_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_unlock_xattr(inode, &no_expand);
 
 	return ret;
 }
@@ -1891,7 +1898,7 @@ out:
 void ext4_inline_data_truncate(struct inode *inode, int *has_inline)
 {
 	handle_t *handle;
-	int inline_size, value_len, needed_blocks;
+	int inline_size, value_len, needed_blocks, no_expand;
 	size_t i_size;
 	void *value = NULL;
 	struct ext4_xattr_ibody_find is = {
@@ -1908,7 +1915,7 @@ void ext4_inline_data_truncate(struct in
 	if (IS_ERR(handle))
 		return;
 
-	down_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_lock_xattr(inode, &no_expand);
 	if (!ext4_has_inline_data(inode)) {
 		*has_inline = 0;
 		ext4_journal_stop(handle);
@@ -1966,7 +1973,7 @@ out_error:
 	up_write(&EXT4_I(inode)->i_data_sem);
 out:
 	brelse(is.iloc.bh);
-	up_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_unlock_xattr(inode, &no_expand);
 	kfree(value);
 	if (inode->i_nlink)
 		ext4_orphan_del(handle, inode);
@@ -1982,7 +1989,7 @@ out:
 
 int ext4_convert_inline_data(struct inode *inode)
 {
-	int error, needed_blocks;
+	int error, needed_blocks, no_expand;
 	handle_t *handle;
 	struct ext4_iloc iloc;
 
@@ -2004,15 +2011,10 @@ int ext4_convert_inline_data(struct inod
 		goto out_free;
 	}
 
-	down_write(&EXT4_I(inode)->xattr_sem);
-	if (!ext4_has_inline_data(inode)) {
-		up_write(&EXT4_I(inode)->xattr_sem);
-		goto out;
-	}
-
-	error = ext4_convert_inline_data_nolock(handle, inode, &iloc);
-	up_write(&EXT4_I(inode)->xattr_sem);
-out:
+	ext4_write_lock_xattr(inode, &no_expand);
+	if (ext4_has_inline_data(inode))
+		error = ext4_convert_inline_data_nolock(handle, inode, &iloc);
+	ext4_write_unlock_xattr(inode, &no_expand);
 	ext4_journal_stop(handle);
 out_free:
 	brelse(iloc.bh);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/inode.c linux-libre-4.9.52-gnu/fs/ext4/inode.c
--- linux-libre-4.9-gnu/fs/ext4/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -71,10 +71,9 @@ static __u32 ext4_inode_csum(struct inod
 			csum = ext4_chksum(sbi, csum, (__u8 *)&dummy_csum,
 					   csum_size);
 			offset += csum_size;
-			csum = ext4_chksum(sbi, csum, (__u8 *)raw + offset,
-					   EXT4_INODE_SIZE(inode->i_sb) -
-					   offset);
 		}
+		csum = ext4_chksum(sbi, csum, (__u8 *)raw + offset,
+				   EXT4_INODE_SIZE(inode->i_sb) - offset);
 	}
 
 	return csum;
@@ -1324,8 +1323,11 @@ static int ext4_write_end(struct file *f
 	if (ext4_has_inline_data(inode)) {
 		ret = ext4_write_inline_data_end(inode, pos, len,
 						 copied, page);
-		if (ret < 0)
+		if (ret < 0) {
+			unlock_page(page);
+			put_page(page);
 			goto errout;
+		}
 		copied = ret;
 	} else
 		copied = block_write_end(file, mapping, pos,
@@ -1379,7 +1381,9 @@ errout:
  * set the buffer to be dirty, since in data=journalled mode we need
  * to call ext4_handle_dirty_metadata() instead.
  */
-static void zero_new_buffers(struct page *page, unsigned from, unsigned to)
+static void ext4_journalled_zero_new_buffers(handle_t *handle,
+					    struct page *page,
+					    unsigned from, unsigned to)
 {
 	unsigned int block_start = 0, block_end;
 	struct buffer_head *head, *bh;
@@ -1396,7 +1400,7 @@ static void zero_new_buffers(struct page
 					size = min(to, block_end) - start;
 
 					zero_user(page, start, size);
-					set_buffer_uptodate(bh);
+					write_end_fn(handle, bh);
 				}
 				clear_buffer_new(bh);
 			}
@@ -1425,18 +1429,25 @@ static int ext4_journalled_write_end(str
 
 	BUG_ON(!ext4_handle_valid(handle));
 
-	if (ext4_has_inline_data(inode))
-		copied = ext4_write_inline_data_end(inode, pos, len,
-						    copied, page);
-	else {
-		if (copied < len) {
-			if (!PageUptodate(page))
-				copied = 0;
-			zero_new_buffers(page, from+copied, to);
+	if (ext4_has_inline_data(inode)) {
+		ret = ext4_write_inline_data_end(inode, pos, len,
+						 copied, page);
+		if (ret < 0) {
+			unlock_page(page);
+			put_page(page);
+			goto errout;
 		}
-
+		copied = ret;
+	} else if (unlikely(copied < len) && !PageUptodate(page)) {
+		copied = 0;
+		ext4_journalled_zero_new_buffers(handle, page, from, to);
+	} else {
+		if (unlikely(copied < len))
+			ext4_journalled_zero_new_buffers(handle, page,
+							 from + copied, to);
 		ret = ext4_walk_page_buffers(handle, page_buffers(page), from,
-					     to, &partial, write_end_fn);
+					     from + copied, &partial,
+					     write_end_fn);
 		if (!partial)
 			SetPageUptodate(page);
 	}
@@ -1462,6 +1473,7 @@ static int ext4_journalled_write_end(str
 		 */
 		ext4_orphan_add(handle, inode);
 
+errout:
 	ret2 = ext4_journal_stop(handle);
 	if (!ret)
 		ret = ret2;
@@ -2193,7 +2205,7 @@ static int mpage_process_page_bufs(struc
 {
 	struct inode *inode = mpd->inode;
 	int err;
-	ext4_lblk_t blocks = (i_size_read(inode) + (1 << inode->i_blkbits) - 1)
+	ext4_lblk_t blocks = (i_size_read(inode) + i_blocksize(inode) - 1)
 							>> inode->i_blkbits;
 
 	do {
@@ -3442,14 +3454,14 @@ static ssize_t ext4_direct_IO_write(stru
 		 * writes need zeroing either because they can race with page
 		 * faults or because they use partial blocks.
 		 */
-		if (round_down(offset, 1<<inode->i_blkbits) >= inode->i_size &&
+		if (round_down(offset, i_blocksize(inode)) >= inode->i_size &&
 		    ext4_aligned_io(inode, offset, count))
 			get_block_func = ext4_dio_get_block;
 		else
 			get_block_func = ext4_dax_get_block;
 		dio_flags = DIO_LOCKING;
 	} else if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS) ||
-		   round_down(offset, 1 << inode->i_blkbits) >= inode->i_size) {
+		   round_down(offset, i_blocksize(inode)) >= inode->i_size) {
 		get_block_func = ext4_dio_get_block;
 		dio_flags = DIO_LOCKING | DIO_SKIP_HOLES;
 	} else if (is_sync_kiocb(iocb)) {
@@ -3811,6 +3823,10 @@ static int ext4_block_truncate_page(hand
 	unsigned blocksize;
 	struct inode *inode = mapping->host;
 
+	/* If we are processing an encrypted inode during orphan list handling */
+	if (ext4_encrypted_inode(inode) && !fscrypt_has_encryption_key(inode))
+		return 0;
+
 	blocksize = inode->i_sb->s_blocksize;
 	length = blocksize - (offset & (blocksize - 1));
 
@@ -4028,6 +4044,8 @@ int ext4_punch_hole(struct inode *inode,
 
 	inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
 	ext4_mark_inode_dirty(handle, inode);
+	if (ret >= 0)
+		ext4_update_inode_fsync_trans(handle, inode, 1);
 out_stop:
 	ext4_journal_stop(handle);
 out_dio:
@@ -4434,6 +4452,7 @@ struct inode *ext4_iget(struct super_blo
 	struct inode *inode;
 	journal_t *journal = EXT4_SB(sb)->s_journal;
 	long ret;
+	loff_t size;
 	int block;
 	uid_t i_uid;
 	gid_t i_gid;
@@ -4534,6 +4553,11 @@ struct inode *ext4_iget(struct super_blo
 		ei->i_file_acl |=
 			((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
 	inode->i_size = ext4_isize(raw_inode);
+	if ((size = i_size_read(inode)) < 0) {
+		EXT4_ERROR_INODE(inode, "bad i_size value: %lld", size);
+		ret = -EFSCORRUPTED;
+		goto bad_inode;
+	}
 	ei->i_disksize = inode->i_size;
 #ifdef CONFIG_QUOTA
 	ei->i_reserved_quota = 0;
@@ -5024,7 +5048,7 @@ static void ext4_wait_for_tail_page_comm
 	 * do. We do the check mainly to optimize the common PAGE_SIZE ==
 	 * blocksize case
 	 */
-	if (offset > PAGE_SIZE - (1 << inode->i_blkbits))
+	if (offset > PAGE_SIZE - i_blocksize(inode))
 		return;
 	while (1) {
 		page = find_lock_page(inode->i_mapping,
@@ -5419,8 +5443,9 @@ static int ext4_expand_extra_isize(struc
 	/* No extended attributes present */
 	if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR) ||
 	    header->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC)) {
-		memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE, 0,
-			new_extra_isize);
+		memset((void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE +
+		       EXT4_I(inode)->i_extra_isize, 0,
+		       new_extra_isize - EXT4_I(inode)->i_extra_isize);
 		EXT4_I(inode)->i_extra_isize = new_extra_isize;
 		return 0;
 	}
@@ -5664,6 +5689,11 @@ int ext4_page_mkwrite(struct vm_area_str
 	file_update_time(vma->vm_file);
 
 	down_read(&EXT4_I(inode)->i_mmap_sem);
+
+	ret = ext4_convert_inline_data(inode);
+	if (ret)
+		goto out_ret;
+
 	/* Delalloc case is easy... */
 	if (test_opt(inode->i_sb, DELALLOC) &&
 	    !ext4_should_journal_data(inode) &&
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/mballoc.c linux-libre-4.9.52-gnu/fs/ext4/mballoc.c
--- linux-libre-4.9-gnu/fs/ext4/mballoc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/mballoc.c	2017-09-27 08:40:05.000000000 -0400
@@ -669,7 +669,7 @@ static void ext4_mb_mark_free_simple(str
 	ext4_grpblk_t min;
 	ext4_grpblk_t max;
 	ext4_grpblk_t chunk;
-	unsigned short border;
+	unsigned int border;
 
 	BUG_ON(len > EXT4_CLUSTERS_PER_GROUP(sb));
 
@@ -838,7 +838,7 @@ static int ext4_mb_init_cache(struct pag
 	inode = page->mapping->host;
 	sb = inode->i_sb;
 	ngroups = ext4_get_groups_count(sb);
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 	blocks_per_page = PAGE_SIZE / blocksize;
 
 	groups_per_page = blocks_per_page >> 1;
@@ -2287,7 +2287,7 @@ static int ext4_mb_seq_groups_show(struc
 	struct ext4_group_info *grinfo;
 	struct sg {
 		struct ext4_group_info info;
-		ext4_grpblk_t counters[16];
+		ext4_grpblk_t counters[EXT4_MAX_BLOCK_LOG_SIZE + 2];
 	} sg;
 
 	group--;
@@ -3123,6 +3123,13 @@ ext4_mb_normalize_request(struct ext4_al
 	if (ar->pright && start + size - 1 >= ar->lright)
 		size -= start + size - ar->lright;
 
+	/*
+	 * Trim allocation request for filesystems with artificially small
+	 * groups.
+	 */
+	if (size > EXT4_BLOCKS_PER_GROUP(ac->ac_sb))
+		size = EXT4_BLOCKS_PER_GROUP(ac->ac_sb);
+
 	end = start + size;
 
 	/* check we don't cross already preallocated blocks */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/move_extent.c linux-libre-4.9.52-gnu/fs/ext4/move_extent.c
--- linux-libre-4.9-gnu/fs/ext4/move_extent.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/move_extent.c	2017-09-27 08:40:05.000000000 -0400
@@ -187,7 +187,7 @@ mext_page_mkuptodate(struct page *page,
 	if (PageUptodate(page))
 		return 0;
 
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 	if (!page_has_buffers(page))
 		create_empty_buffers(page, blocksize, 0);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/namei.c linux-libre-4.9.52-gnu/fs/ext4/namei.c
--- linux-libre-4.9-gnu/fs/ext4/namei.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/namei.c	2017-09-27 08:40:05.000000000 -0400
@@ -1255,9 +1255,9 @@ static inline int ext4_match(struct ext4
 	if (unlikely(!name)) {
 		if (fname->usr_fname->name[0] == '_') {
 			int ret;
-			if (de->name_len < 16)
+			if (de->name_len <= 32)
 				return 0;
-			ret = memcmp(de->name + de->name_len - 16,
+			ret = memcmp(de->name + ((de->name_len - 17) & ~15),
 				     fname->crypto_buf.name + 8, 16);
 			return (ret == 0) ? 1 : 0;
 		}
@@ -1616,13 +1616,15 @@ static struct dentry *ext4_lookup(struct
 		    !fscrypt_has_permitted_context(dir, inode)) {
 			int nokey = ext4_encrypted_inode(inode) &&
 				!fscrypt_has_encryption_key(inode);
-			iput(inode);
-			if (nokey)
+			if (nokey) {
+				iput(inode);
 				return ERR_PTR(-ENOKEY);
+			}
 			ext4_warning(inode->i_sb,
 				     "Inconsistent encryption contexts: %lu/%lu",
 				     (unsigned long) dir->i_ino,
 				     (unsigned long) inode->i_ino);
+			iput(inode);
 			return ERR_PTR(-EPERM);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/resize.c linux-libre-4.9.52-gnu/fs/ext4/resize.c
--- linux-libre-4.9-gnu/fs/ext4/resize.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/resize.c	2017-09-27 08:40:05.000000000 -0400
@@ -1926,7 +1926,8 @@ retry:
 			n_desc_blocks = o_desc_blocks +
 				le16_to_cpu(es->s_reserved_gdt_blocks);
 			n_group = n_desc_blocks * EXT4_DESC_PER_BLOCK(sb);
-			n_blocks_count = n_group * EXT4_BLOCKS_PER_GROUP(sb);
+			n_blocks_count = (ext4_fsblk_t)n_group *
+				EXT4_BLOCKS_PER_GROUP(sb);
 			n_group--; /* set to last group number */
 		}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/super.c linux-libre-4.9.52-gnu/fs/ext4/super.c
--- linux-libre-4.9-gnu/fs/ext4/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -825,6 +825,7 @@ static void ext4_put_super(struct super_
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_super_block *es = sbi->s_es;
+	int aborted = 0;
 	int i, err;
 
 	ext4_unregister_li_request(sb);
@@ -834,9 +835,10 @@ static void ext4_put_super(struct super_
 	destroy_workqueue(sbi->rsv_conversion_wq);
 
 	if (sbi->s_journal) {
+		aborted = is_journal_aborted(sbi->s_journal);
 		err = jbd2_journal_destroy(sbi->s_journal);
 		sbi->s_journal = NULL;
-		if (err < 0)
+		if ((err < 0) && !aborted)
 			ext4_abort(sb, "Couldn't clean up the journal");
 	}
 
@@ -847,7 +849,7 @@ static void ext4_put_super(struct super_
 	ext4_mb_release(sb);
 	ext4_ext_release(sb);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!(sb->s_flags & MS_RDONLY) && !aborted) {
 		ext4_clear_feature_journal_needs_recovery(sb);
 		es->s_state = cpu_to_le16(sbi->s_mount_state);
 	}
@@ -2332,6 +2334,7 @@ static void ext4_orphan_cleanup(struct s
 	unsigned int s_flags = sb->s_flags;
 	int nr_orphans = 0, nr_truncates = 0;
 #ifdef CONFIG_QUOTA
+	int quota_update = 0;
 	int i;
 #endif
 	if (!es->s_last_orphan) {
@@ -2370,14 +2373,32 @@ static void ext4_orphan_cleanup(struct s
 #ifdef CONFIG_QUOTA
 	/* Needed for iput() to work correctly and not trash data */
 	sb->s_flags |= MS_ACTIVE;
-	/* Turn on quotas so that they are updated correctly */
+
+	/*
+	 * Turn on quotas which were not enabled for read-only mounts if
+	 * filesystem has quota feature, so that they are updated correctly.
+	 */
+	if (ext4_has_feature_quota(sb) && (s_flags & MS_RDONLY)) {
+		int ret = ext4_enable_quotas(sb);
+
+		if (!ret)
+			quota_update = 1;
+		else
+			ext4_msg(sb, KERN_ERR,
+				"Cannot turn on quotas: error %d", ret);
+	}
+
+	/* Turn on journaled quotas used for old sytle */
 	for (i = 0; i < EXT4_MAXQUOTAS; i++) {
 		if (EXT4_SB(sb)->s_qf_names[i]) {
 			int ret = ext4_quota_on_mount(sb, i);
-			if (ret < 0)
+
+			if (!ret)
+				quota_update = 1;
+			else
 				ext4_msg(sb, KERN_ERR,
 					"Cannot turn on journaled "
-					"quota: error %d", ret);
+					"quota: type %d: error %d", i, ret);
 		}
 	}
 #endif
@@ -2436,10 +2457,12 @@ static void ext4_orphan_cleanup(struct s
 		ext4_msg(sb, KERN_INFO, "%d truncate%s cleaned up",
 		       PLURAL(nr_truncates));
 #ifdef CONFIG_QUOTA
-	/* Turn quotas off */
-	for (i = 0; i < EXT4_MAXQUOTAS; i++) {
-		if (sb_dqopt(sb)->files[i])
-			dquot_quota_off(sb, i);
+	/* Turn off quotas if they were enabled for orphan cleanup */
+	if (quota_update) {
+		for (i = 0; i < EXT4_MAXQUOTAS; i++) {
+			if (sb_dqopt(sb)->files[i])
+				dquot_quota_off(sb, i);
+		}
 	}
 #endif
 	sb->s_flags = s_flags; /* Restore MS_RDONLY status */
@@ -3193,10 +3216,15 @@ static int count_overhead(struct super_b
 			ext4_set_bit(s++, buf);
 			count++;
 		}
-		for (j = ext4_bg_num_gdb(sb, grp); j > 0; j--) {
-			ext4_set_bit(EXT4_B2C(sbi, s++), buf);
-			count++;
+		j = ext4_bg_num_gdb(sb, grp);
+		if (s + j > EXT4_BLOCKS_PER_GROUP(sb)) {
+			ext4_error(sb, "Invalid number of block group "
+				   "descriptor blocks: %d", j);
+			j = EXT4_BLOCKS_PER_GROUP(sb) - s;
 		}
+		count += j;
+		for (; j > 0; j--)
+			ext4_set_bit(EXT4_B2C(sbi, s++), buf);
 	}
 	if (!count)
 		return 0;
@@ -3301,7 +3329,7 @@ static int ext4_fill_super(struct super_
 	char *orig_data = kstrdup(data, GFP_KERNEL);
 	struct buffer_head *bh;
 	struct ext4_super_block *es = NULL;
-	struct ext4_sb_info *sbi;
+	struct ext4_sb_info *sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	ext4_fsblk_t block;
 	ext4_fsblk_t sb_block = get_sb_block(&data);
 	ext4_fsblk_t logical_sb_block;
@@ -3320,16 +3348,14 @@ static int ext4_fill_super(struct super_
 	unsigned int journal_ioprio = DEFAULT_JOURNAL_IOPRIO;
 	ext4_group_t first_not_zeroed;
 
-	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
-	if (!sbi)
-		goto out_free_orig;
+	if ((data && !orig_data) || !sbi)
+		goto out_free_base;
 
 	sbi->s_blockgroup_lock =
 		kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL);
-	if (!sbi->s_blockgroup_lock) {
-		kfree(sbi);
-		goto out_free_orig;
-	}
+	if (!sbi->s_blockgroup_lock)
+		goto out_free_base;
+
 	sb->s_fs_info = sbi;
 	sbi->s_sb = sb;
 	sbi->s_inode_readahead_blks = EXT4_DEF_INODE_READAHEAD_BLKS;
@@ -3475,11 +3501,19 @@ static int ext4_fill_super(struct super_
 	 */
 	sbi->s_li_wait_mult = EXT4_DEF_LI_WAIT_MULT;
 
-	if (!parse_options((char *) sbi->s_es->s_mount_opts, sb,
-			   &journal_devnum, &journal_ioprio, 0)) {
-		ext4_msg(sb, KERN_WARNING,
-			 "failed to parse options in superblock: %s",
-			 sbi->s_es->s_mount_opts);
+	if (sbi->s_es->s_mount_opts[0]) {
+		char *s_mount_opts = kstrndup(sbi->s_es->s_mount_opts,
+					      sizeof(sbi->s_es->s_mount_opts),
+					      GFP_KERNEL);
+		if (!s_mount_opts)
+			goto failed_mount;
+		if (!parse_options(s_mount_opts, sb, &journal_devnum,
+				   &journal_ioprio, 0)) {
+			ext4_msg(sb, KERN_WARNING,
+				 "failed to parse options in superblock: %s",
+				 s_mount_opts);
+		}
+		kfree(s_mount_opts);
 	}
 	sbi->s_def_mount_opt = sbi->s_mount_opt;
 	if (!parse_options((char *) data, sb, &journal_devnum,
@@ -3505,6 +3539,11 @@ static int ext4_fill_super(struct super_
 				 "both data=journal and dax");
 			goto failed_mount;
 		}
+		if (ext4_has_feature_encrypt(sb)) {
+			ext4_msg(sb, KERN_WARNING,
+				 "encrypted files will use data=ordered "
+				 "instead of data journaling mode");
+		}
 		if (test_opt(sb, DELALLOC))
 			clear_opt(sb, DELALLOC);
 	} else {
@@ -3660,12 +3699,16 @@ static int ext4_fill_super(struct super_
 
 	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
 	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
-	if (EXT4_INODE_SIZE(sb) == 0 || EXT4_INODES_PER_GROUP(sb) == 0)
-		goto cantfind_ext4;
 
 	sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb);
 	if (sbi->s_inodes_per_block == 0)
 		goto cantfind_ext4;
+	if (sbi->s_inodes_per_group < sbi->s_inodes_per_block ||
+	    sbi->s_inodes_per_group > blocksize * 8) {
+		ext4_msg(sb, KERN_ERR, "invalid inodes per group: %lu\n",
+			 sbi->s_blocks_per_group);
+		goto failed_mount;
+	}
 	sbi->s_itb_per_group = sbi->s_inodes_per_group /
 					sbi->s_inodes_per_block;
 	sbi->s_desc_per_block = blocksize / EXT4_DESC_SIZE(sb);
@@ -3748,13 +3791,6 @@ static int ext4_fill_super(struct super_
 	}
 	sbi->s_cluster_ratio = clustersize / blocksize;
 
-	if (sbi->s_inodes_per_group > blocksize * 8) {
-		ext4_msg(sb, KERN_ERR,
-		       "#inodes per group too big: %lu",
-		       sbi->s_inodes_per_group);
-		goto failed_mount;
-	}
-
 	/* Do we have standard group size of clustersize * 8 blocks ? */
 	if (sbi->s_blocks_per_group == clustersize << 3)
 		set_opt2(sb, STD_GROUP_SIZE);
@@ -3814,6 +3850,15 @@ static int ext4_fill_super(struct super_
 			(EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
 	db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
 		   EXT4_DESC_PER_BLOCK(sb);
+	if (ext4_has_feature_meta_bg(sb)) {
+		if (le32_to_cpu(es->s_first_meta_bg) > db_count) {
+			ext4_msg(sb, KERN_WARNING,
+				 "first meta block group too large: %u "
+				 "(group descriptor block count %u)",
+				 le32_to_cpu(es->s_first_meta_bg), db_count);
+			goto failed_mount;
+		}
+	}
 	sbi->s_group_desc = ext4_kvmalloc(db_count *
 					  sizeof(struct buffer_head *),
 					  GFP_KERNEL);
@@ -3889,7 +3934,8 @@ static int ext4_fill_super(struct super_
 	 * root first: it may be modified in the journal!
 	 */
 	if (!test_opt(sb, NOLOAD) && ext4_has_feature_journal(sb)) {
-		if (ext4_load_journal(sb, es, journal_devnum))
+		err = ext4_load_journal(sb, es, journal_devnum);
+		if (err)
 			goto failed_mount3a;
 	} else if (test_opt(sb, NOLOAD) && !(sb->s_flags & MS_RDONLY) &&
 		   ext4_has_feature_journal_needs_recovery(sb)) {
@@ -4160,7 +4206,9 @@ no_journal:
 
 	if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount"))
 		ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. "
-			 "Opts: %s%s%s", descr, sbi->s_es->s_mount_opts,
+			 "Opts: %.*s%s%s", descr,
+			 (int) sizeof(sbi->s_es->s_mount_opts),
+			 sbi->s_es->s_mount_opts,
 			 *sbi->s_es->s_mount_opts ? "; " : "", orig_data);
 
 	if (es->s_error_count)
@@ -4239,8 +4287,8 @@ failed_mount:
 out_fail:
 	sb->s_fs_info = NULL;
 	kfree(sbi->s_blockgroup_lock);
+out_free_base:
 	kfree(sbi);
-out_free_orig:
 	kfree(orig_data);
 	return err ? err : ret;
 }
@@ -4550,7 +4598,8 @@ static int ext4_commit_super(struct supe
 				&EXT4_SB(sb)->s_freeinodes_counter));
 	BUFFER_TRACE(sbh, "marking dirty");
 	ext4_superblock_csum_set(sb);
-	lock_buffer(sbh);
+	if (sync)
+		lock_buffer(sbh);
 	if (buffer_write_io_error(sbh)) {
 		/*
 		 * Oh, dear.  A previous attempt to write the
@@ -4566,8 +4615,8 @@ static int ext4_commit_super(struct supe
 		set_buffer_uptodate(sbh);
 	}
 	mark_buffer_dirty(sbh);
-	unlock_buffer(sbh);
 	if (sync) {
+		unlock_buffer(sbh);
 		error = __sync_dirty_buffer(sbh,
 			test_opt(sb, BARRIER) ? WRITE_FUA : WRITE_SYNC);
 		if (error)
@@ -5337,6 +5386,9 @@ static int ext4_enable_quotas(struct sup
 				DQUOT_USAGE_ENABLED |
 				(quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
 			if (err) {
+				for (type--; type >= 0; type--)
+					dquot_quota_off(sb, type);
+
 				ext4_warning(sb,
 					"Failed to enable quota tracking "
 					"(type=%d, err=%d). Please run "
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/sysfs.c linux-libre-4.9.52-gnu/fs/ext4/sysfs.c
--- linux-libre-4.9-gnu/fs/ext4/sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -100,7 +100,7 @@ static ssize_t reserved_clusters_store(s
 	int ret;
 
 	ret = kstrtoull(skip_spaces(buf), 0, &val);
-	if (!ret || val >= clusters)
+	if (ret || val >= clusters)
 		return -EINVAL;
 
 	atomic64_set(&sbi->s_resv_clusters, val);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/xattr.c linux-libre-4.9.52-gnu/fs/ext4/xattr.c
--- linux-libre-4.9-gnu/fs/ext4/xattr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/xattr.c	2017-09-27 08:40:05.000000000 -0400
@@ -131,31 +131,26 @@ static __le32 ext4_xattr_block_csum(stru
 }
 
 static int ext4_xattr_block_csum_verify(struct inode *inode,
-					sector_t block_nr,
-					struct ext4_xattr_header *hdr)
-{
-	if (ext4_has_metadata_csum(inode->i_sb) &&
-	    (hdr->h_checksum != ext4_xattr_block_csum(inode, block_nr, hdr)))
-		return 0;
-	return 1;
-}
-
-static void ext4_xattr_block_csum_set(struct inode *inode,
-				      sector_t block_nr,
-				      struct ext4_xattr_header *hdr)
+					struct buffer_head *bh)
 {
-	if (!ext4_has_metadata_csum(inode->i_sb))
-		return;
+	struct ext4_xattr_header *hdr = BHDR(bh);
+	int ret = 1;
 
-	hdr->h_checksum = ext4_xattr_block_csum(inode, block_nr, hdr);
+	if (ext4_has_metadata_csum(inode->i_sb)) {
+		lock_buffer(bh);
+		ret = (hdr->h_checksum == ext4_xattr_block_csum(inode,
+							bh->b_blocknr, hdr));
+		unlock_buffer(bh);
+	}
+	return ret;
 }
 
-static inline int ext4_handle_dirty_xattr_block(handle_t *handle,
-						struct inode *inode,
-						struct buffer_head *bh)
+static void ext4_xattr_block_csum_set(struct inode *inode,
+				      struct buffer_head *bh)
 {
-	ext4_xattr_block_csum_set(inode, bh->b_blocknr, BHDR(bh));
-	return ext4_handle_dirty_metadata(handle, inode, bh);
+	if (ext4_has_metadata_csum(inode->i_sb))
+		BHDR(bh)->h_checksum = ext4_xattr_block_csum(inode,
+						bh->b_blocknr, BHDR(bh));
 }
 
 static inline const struct xattr_handler *
@@ -218,7 +213,7 @@ ext4_xattr_check_block(struct inode *ino
 	if (BHDR(bh)->h_magic != cpu_to_le32(EXT4_XATTR_MAGIC) ||
 	    BHDR(bh)->h_blocks != cpu_to_le32(1))
 		return -EFSCORRUPTED;
-	if (!ext4_xattr_block_csum_verify(inode, bh->b_blocknr, BHDR(bh)))
+	if (!ext4_xattr_block_csum_verify(inode, bh))
 		return -EFSBADCRC;
 	error = ext4_xattr_check_names(BFIRST(bh), bh->b_data + bh->b_size,
 				       bh->b_data);
@@ -601,23 +596,22 @@ ext4_xattr_release_block(handle_t *handl
 			}
 		}
 
+		ext4_xattr_block_csum_set(inode, bh);
 		/*
 		 * Beware of this ugliness: Releasing of xattr block references
 		 * from different inodes can race and so we have to protect
 		 * from a race where someone else frees the block (and releases
 		 * its journal_head) before we are done dirtying the buffer. In
 		 * nojournal mode this race is harmless and we actually cannot
-		 * call ext4_handle_dirty_xattr_block() with locked buffer as
+		 * call ext4_handle_dirty_metadata() with locked buffer as
 		 * that function can call sync_dirty_buffer() so for that case
 		 * we handle the dirtying after unlocking the buffer.
 		 */
 		if (ext4_handle_valid(handle))
-			error = ext4_handle_dirty_xattr_block(handle, inode,
-							      bh);
+			error = ext4_handle_dirty_metadata(handle, inode, bh);
 		unlock_buffer(bh);
 		if (!ext4_handle_valid(handle))
-			error = ext4_handle_dirty_xattr_block(handle, inode,
-							      bh);
+			error = ext4_handle_dirty_metadata(handle, inode, bh);
 		if (IS_SYNC(inode))
 			ext4_handle_sync(handle);
 		dquot_free_block(inode, EXT4_C2B(EXT4_SB(inode->i_sb), 1));
@@ -846,13 +840,14 @@ ext4_xattr_block_set(handle_t *handle, s
 				ext4_xattr_cache_insert(ext4_mb_cache,
 					bs->bh);
 			}
+			ext4_xattr_block_csum_set(inode, bs->bh);
 			unlock_buffer(bs->bh);
 			if (error == -EFSCORRUPTED)
 				goto bad_block;
 			if (!error)
-				error = ext4_handle_dirty_xattr_block(handle,
-								      inode,
-								      bs->bh);
+				error = ext4_handle_dirty_metadata(handle,
+								   inode,
+								   bs->bh);
 			if (error)
 				goto cleanup;
 			goto inserted;
@@ -950,10 +945,11 @@ inserted:
 					ce->e_reusable = 0;
 				ea_bdebug(new_bh, "reusing; refcount now=%d",
 					  ref);
+				ext4_xattr_block_csum_set(inode, new_bh);
 				unlock_buffer(new_bh);
-				error = ext4_handle_dirty_xattr_block(handle,
-								      inode,
-								      new_bh);
+				error = ext4_handle_dirty_metadata(handle,
+								   inode,
+								   new_bh);
 				if (error)
 					goto cleanup_dquot;
 			}
@@ -1003,11 +999,12 @@ getblk_failed:
 				goto getblk_failed;
 			}
 			memcpy(new_bh->b_data, s->base, new_bh->b_size);
+			ext4_xattr_block_csum_set(inode, new_bh);
 			set_buffer_uptodate(new_bh);
 			unlock_buffer(new_bh);
 			ext4_xattr_cache_insert(ext4_mb_cache, new_bh);
-			error = ext4_handle_dirty_xattr_block(handle,
-							      inode, new_bh);
+			error = ext4_handle_dirty_metadata(handle, inode,
+							   new_bh);
 			if (error)
 				goto cleanup;
 		}
@@ -1174,16 +1171,14 @@ ext4_xattr_set_handle(handle_t *handle,
 	struct ext4_xattr_block_find bs = {
 		.s = { .not_found = -ENODATA, },
 	};
-	unsigned long no_expand;
+	int no_expand;
 	int error;
 
 	if (!name)
 		return -EINVAL;
 	if (strlen(name) > 255)
 		return -ERANGE;
-	down_write(&EXT4_I(inode)->xattr_sem);
-	no_expand = ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND);
-	ext4_set_inode_state(inode, EXT4_STATE_NO_EXPAND);
+	ext4_write_lock_xattr(inode, &no_expand);
 
 	error = ext4_reserve_inode_write(handle, inode, &is.iloc);
 	if (error)
@@ -1251,7 +1246,7 @@ ext4_xattr_set_handle(handle_t *handle,
 		ext4_xattr_update_super_block(handle, inode->i_sb);
 		inode->i_ctime = ext4_current_time(inode);
 		if (!value)
-			ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
+			no_expand = 0;
 		error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
 		/*
 		 * The bh is consumed by ext4_mark_iloc_dirty, even with
@@ -1265,9 +1260,7 @@ ext4_xattr_set_handle(handle_t *handle,
 cleanup:
 	brelse(is.iloc.bh);
 	brelse(bs.bh);
-	if (no_expand == 0)
-		ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
-	up_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_unlock_xattr(inode, &no_expand);
 	return error;
 }
 
@@ -1484,12 +1477,11 @@ int ext4_expand_extra_isize_ea(struct in
 	int error = 0, tried_min_extra_isize = 0;
 	int s_min_extra_isize = le16_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize);
 	int isize_diff;	/* How much do we need to grow i_extra_isize */
+	int no_expand;
+
+	if (ext4_write_trylock_xattr(inode, &no_expand) == 0)
+		return 0;
 
-	down_write(&EXT4_I(inode)->xattr_sem);
-	/*
-	 * Set EXT4_STATE_NO_EXPAND to avoid recursion when marking inode dirty
-	 */
-	ext4_set_inode_state(inode, EXT4_STATE_NO_EXPAND);
 retry:
 	isize_diff = new_extra_isize - EXT4_I(inode)->i_extra_isize;
 	if (EXT4_I(inode)->i_extra_isize >= new_extra_isize)
@@ -1571,17 +1563,16 @@ shift:
 	EXT4_I(inode)->i_extra_isize = new_extra_isize;
 	brelse(bh);
 out:
-	ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
-	up_write(&EXT4_I(inode)->xattr_sem);
+	ext4_write_unlock_xattr(inode, &no_expand);
 	return 0;
 
 cleanup:
 	brelse(bh);
 	/*
-	 * We deliberately leave EXT4_STATE_NO_EXPAND set here since inode
-	 * size expansion failed.
+	 * Inode size expansion failed; don't try again
 	 */
-	up_write(&EXT4_I(inode)->xattr_sem);
+	no_expand = 1;
+	ext4_write_unlock_xattr(inode, &no_expand);
 	return error;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ext4/xattr.h linux-libre-4.9.52-gnu/fs/ext4/xattr.h
--- linux-libre-4.9-gnu/fs/ext4/xattr.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ext4/xattr.h	2017-09-27 08:40:05.000000000 -0400
@@ -102,6 +102,38 @@ extern const struct xattr_handler ext4_x
 
 #define EXT4_XATTR_NAME_ENCRYPTION_CONTEXT "c"
 
+/*
+ * The EXT4_STATE_NO_EXPAND is overloaded and used for two purposes.
+ * The first is to signal that there the inline xattrs and data are
+ * taking up so much space that we might as well not keep trying to
+ * expand it.  The second is that xattr_sem is taken for writing, so
+ * we shouldn't try to recurse into the inode expansion.  For this
+ * second case, we need to make sure that we take save and restore the
+ * NO_EXPAND state flag appropriately.
+ */
+static inline void ext4_write_lock_xattr(struct inode *inode, int *save)
+{
+	down_write(&EXT4_I(inode)->xattr_sem);
+	*save = ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND);
+	ext4_set_inode_state(inode, EXT4_STATE_NO_EXPAND);
+}
+
+static inline int ext4_write_trylock_xattr(struct inode *inode, int *save)
+{
+	if (down_write_trylock(&EXT4_I(inode)->xattr_sem) == 0)
+		return 0;
+	*save = ext4_test_inode_state(inode, EXT4_STATE_NO_EXPAND);
+	ext4_set_inode_state(inode, EXT4_STATE_NO_EXPAND);
+	return 1;
+}
+
+static inline void ext4_write_unlock_xattr(struct inode *inode, int *save)
+{
+	if (*save == 0)
+		ext4_clear_inode_state(inode, EXT4_STATE_NO_EXPAND);
+	up_write(&EXT4_I(inode)->xattr_sem);
+}
+
 extern ssize_t ext4_listxattr(struct dentry *, char *, size_t);
 
 extern int ext4_xattr_get(struct inode *, int, const char *, void *, size_t);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/acl.c linux-libre-4.9.52-gnu/fs/f2fs/acl.c
--- linux-libre-4.9-gnu/fs/f2fs/acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -211,7 +211,7 @@ static int __f2fs_set_acl(struct inode *
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
-		if (acl) {
+		if (acl && !ipage) {
 			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
 			if (error)
 				return error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/checkpoint.c linux-libre-4.9.52-gnu/fs/f2fs/checkpoint.c
--- linux-libre-4.9-gnu/fs/f2fs/checkpoint.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/checkpoint.c	2017-09-27 08:40:05.000000000 -0400
@@ -772,6 +772,11 @@ int get_valid_checkpoint(struct f2fs_sb_
 	if (sanity_check_ckpt(sbi))
 		goto fail_no_cp;
 
+	if (cur_page == cp1)
+		sbi->cur_cp_pack = 1;
+	else
+		sbi->cur_cp_pack = 2;
+
 	if (cp_blks <= 1)
 		goto done;
 
@@ -1123,7 +1128,7 @@ static int do_checkpoint(struct f2fs_sb_
 				le32_to_cpu(ckpt->checksum_offset)))
 				= cpu_to_le32(crc32);
 
-	start_blk = __start_cp_addr(sbi);
+	start_blk = __start_cp_next_addr(sbi);
 
 	/* need to wait for end_io results */
 	wait_on_all_pages_writeback(sbi);
@@ -1187,6 +1192,7 @@ static int do_checkpoint(struct f2fs_sb_
 	clear_prefree_segments(sbi, cpc);
 	clear_sbi_flag(sbi, SBI_IS_DIRTY);
 	clear_sbi_flag(sbi, SBI_NEED_CP);
+	__set_cp_next_pack(sbi);
 
 	/*
 	 * redirty superblock if metadata like node page or inode cache is
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/data.c linux-libre-4.9.52-gnu/fs/f2fs/data.c
--- linux-libre-4.9-gnu/fs/f2fs/data.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/data.c	2017-09-27 08:40:05.000000000 -0400
@@ -716,7 +716,7 @@ next_dnode:
 	}
 
 	prealloc = 0;
-	ofs_in_node = dn.ofs_in_node;
+	last_ofs_in_node = ofs_in_node = dn.ofs_in_node;
 	end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
 
 next_block:
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/debug.c linux-libre-4.9.52-gnu/fs/f2fs/debug.c
--- linux-libre-4.9-gnu/fs/f2fs/debug.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/debug.c	2017-09-27 08:40:05.000000000 -0400
@@ -310,17 +310,17 @@ static int stat_show(struct seq_file *s,
 		seq_printf(s, "  - Inner Struct Count: tree: %d(%d), node: %d\n",
 				si->ext_tree, si->zombie_tree, si->ext_node);
 		seq_puts(s, "\nBalancing F2FS Async:\n");
-		seq_printf(s, "  - inmem: %4lld, wb_bios: %4d\n",
+		seq_printf(s, "  - inmem: %4d, wb_bios: %4d\n",
 			   si->inmem_pages, si->wb_bios);
-		seq_printf(s, "  - nodes: %4lld in %4d\n",
+		seq_printf(s, "  - nodes: %4d in %4d\n",
 			   si->ndirty_node, si->node_pages);
-		seq_printf(s, "  - dents: %4lld in dirs:%4d (%4d)\n",
+		seq_printf(s, "  - dents: %4d in dirs:%4d (%4d)\n",
 			   si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
-		seq_printf(s, "  - datas: %4lld in files:%4d\n",
+		seq_printf(s, "  - datas: %4d in files:%4d\n",
 			   si->ndirty_data, si->ndirty_files);
-		seq_printf(s, "  - meta: %4lld in %4d\n",
+		seq_printf(s, "  - meta: %4d in %4d\n",
 			   si->ndirty_meta, si->meta_pages);
-		seq_printf(s, "  - imeta: %4lld\n",
+		seq_printf(s, "  - imeta: %4d\n",
 			   si->ndirty_imeta);
 		seq_printf(s, "  - NATs: %9d/%9d\n  - SITs: %9d/%9d\n",
 			   si->dirty_nats, si->nats, si->dirty_sits, si->sits);
@@ -373,6 +373,7 @@ static int stat_open(struct inode *inode
 }
 
 static const struct file_operations stat_fops = {
+	.owner = THIS_MODULE,
 	.open = stat_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/dir.c linux-libre-4.9.52-gnu/fs/f2fs/dir.c
--- linux-libre-4.9-gnu/fs/f2fs/dir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/dir.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,19 +130,29 @@ struct f2fs_dir_entry *find_target_dentr
 			continue;
 		}
 
-		/* encrypted case */
+		if (de->hash_code != namehash)
+			goto not_match;
+
 		de_name.name = d->filename[bit_pos];
 		de_name.len = le16_to_cpu(de->name_len);
 
-		/* show encrypted name */
-		if (fname->hash) {
-			if (de->hash_code == fname->hash)
-				goto found;
-		} else if (de_name.len == name->len &&
-			de->hash_code == namehash &&
-			!memcmp(de_name.name, name->name, name->len))
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
+		if (unlikely(!name->name)) {
+			if (fname->usr_fname->name[0] == '_') {
+				if (de_name.len > 32 &&
+					!memcmp(de_name.name + ((de_name.len - 17) & ~15),
+						fname->crypto_buf.name + 8, 16))
+					goto found;
+				goto not_match;
+			}
+			name->name = fname->crypto_buf.name;
+			name->len = fname->crypto_buf.len;
+		}
+#endif
+		if (de_name.len == name->len &&
+				!memcmp(de_name.name, name->name, name->len))
 			goto found;
-
+not_match:
 		if (max_slots && max_len > *max_slots)
 			*max_slots = max_len;
 		max_len = 0;
@@ -170,12 +180,7 @@ static struct f2fs_dir_entry *find_in_le
 	struct f2fs_dir_entry *de = NULL;
 	bool room = false;
 	int max_slots;
-	f2fs_hash_t namehash;
-
-	if(fname->hash)
-		namehash = cpu_to_le32(fname->hash);
-	else
-		namehash = f2fs_dentry_hash(&name);
+	f2fs_hash_t namehash = f2fs_dentry_hash(&name, fname);
 
 	nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level);
 	nblock = bucket_blocks(level);
@@ -207,9 +212,13 @@ static struct f2fs_dir_entry *find_in_le
 		f2fs_put_page(dentry_page, 0);
 	}
 
-	if (!de && room && F2FS_I(dir)->chash != namehash) {
-		F2FS_I(dir)->chash = namehash;
-		F2FS_I(dir)->clevel = level;
+	/* This is to increase the speed of f2fs_create */
+	if (!de && room) {
+		F2FS_I(dir)->task = current;
+		if (F2FS_I(dir)->chash != namehash) {
+			F2FS_I(dir)->chash = namehash;
+			F2FS_I(dir)->clevel = level;
+		}
 	}
 
 	return de;
@@ -535,7 +544,7 @@ int f2fs_add_regular_entry(struct inode
 
 	level = 0;
 	slots = GET_DENTRY_SLOTS(new_name->len);
-	dentry_hash = f2fs_dentry_hash(new_name);
+	dentry_hash = f2fs_dentry_hash(new_name, NULL);
 
 	current_depth = F2FS_I(dir)->i_current_depth;
 	if (F2FS_I(dir)->chash == dentry_hash) {
@@ -643,14 +652,34 @@ int __f2fs_add_link(struct inode *dir, c
 				struct inode *inode, nid_t ino, umode_t mode)
 {
 	struct fscrypt_name fname;
+	struct page *page = NULL;
+	struct f2fs_dir_entry *de = NULL;
 	int err;
 
 	err = fscrypt_setup_filename(dir, name, 0, &fname);
 	if (err)
 		return err;
 
-	err = __f2fs_do_add_link(dir, &fname, inode, ino, mode);
-
+	/*
+	 * An immature stakable filesystem shows a race condition between lookup
+	 * and create. If we have same task when doing lookup and create, it's
+	 * definitely fine as expected by VFS normally. Otherwise, let's just
+	 * verify on-disk dentry one more time, which guarantees filesystem
+	 * consistency more.
+	 */
+	if (current != F2FS_I(dir)->task) {
+		de = __f2fs_find_entry(dir, &fname, &page);
+		F2FS_I(dir)->task = NULL;
+	}
+	if (de) {
+		f2fs_dentry_kunmap(dir, page);
+		f2fs_put_page(page, 0);
+		err = -EEXIST;
+	} else if (IS_ERR(page)) {
+		err = PTR_ERR(page);
+	} else {
+		err = __f2fs_do_add_link(dir, &fname, inode, ino, mode);
+	}
 	fscrypt_free_filename(&fname);
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/extent_cache.c linux-libre-4.9.52-gnu/fs/f2fs/extent_cache.c
--- linux-libre-4.9-gnu/fs/f2fs/extent_cache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/extent_cache.c	2017-09-27 08:40:05.000000000 -0400
@@ -352,11 +352,12 @@ static struct extent_node *__try_merge_e
 	}
 
 	if (next_ex && __is_front_mergeable(ei, &next_ex->ei)) {
-		if (en)
-			__release_extent_node(sbi, et, prev_ex);
 		next_ex->ei.fofs = ei->fofs;
 		next_ex->ei.blk = ei->blk;
 		next_ex->ei.len += ei->len;
+		if (en)
+			__release_extent_node(sbi, et, prev_ex);
+
 		en = next_ex;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/f2fs.h linux-libre-4.9.52-gnu/fs/f2fs/f2fs.h
--- linux-libre-4.9-gnu/fs/f2fs/f2fs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/f2fs.h	2017-09-27 08:40:05.000000000 -0400
@@ -428,9 +428,10 @@ struct f2fs_inode_info {
 	/* Use below internally in f2fs*/
 	unsigned long flags;		/* use to pass per-file flags */
 	struct rw_semaphore i_sem;	/* protect fi info */
-	struct percpu_counter dirty_pages;	/* # of dirty pages */
+	atomic_t dirty_pages;		/* # of dirty pages */
 	f2fs_hash_t chash;		/* hash value of given file name */
 	unsigned int clevel;		/* maximum level of given file name */
+	struct task_struct *task;	/* lookup and create consistency */
 	nid_t i_xattr_nid;		/* node id that contains xattrs */
 	unsigned long long xattr_ver;	/* cp version of xattr modification */
 	loff_t	last_disk_size;		/* lastly written file size */
@@ -764,6 +765,7 @@ struct f2fs_sb_info {
 
 	/* for checkpoint */
 	struct f2fs_checkpoint *ckpt;		/* raw checkpoint pointer */
+	int cur_cp_pack;			/* remain current cp pack */
 	spinlock_t cp_lock;			/* for flag in ckpt */
 	struct inode *meta_inode;		/* cache meta blocks */
 	struct mutex cp_mutex;			/* checkpoint procedure lock */
@@ -818,7 +820,7 @@ struct f2fs_sb_info {
 	atomic_t nr_wb_bios;			/* # of writeback bios */
 
 	/* # of pages, see count_type */
-	struct percpu_counter nr_pages[NR_COUNT_TYPE];
+	atomic_t nr_pages[NR_COUNT_TYPE];
 	/* # of allocated blocks */
 	struct percpu_counter alloc_valid_block_count;
 
@@ -832,6 +834,9 @@ struct f2fs_sb_info {
 	struct f2fs_gc_kthread	*gc_thread;	/* GC thread */
 	unsigned int cur_victim_sec;		/* current victim section num */
 
+	/* threshold for converting bg victims for fg */
+	u64 fggc_threshold;
+
 	/* maximum # of trials to find a victim segment for SSR and GC */
 	unsigned int max_victim_search;
 
@@ -943,6 +948,7 @@ static inline u32 f2fs_crc32(struct f2fs
 {
 	SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
 	u32 *ctx = (u32 *)shash_desc_ctx(shash);
+	u32 retval;
 	int err;
 
 	shash->tfm = sbi->s_chksum_driver;
@@ -952,7 +958,9 @@ static inline u32 f2fs_crc32(struct f2fs
 	err = crypto_shash_update(shash, address, length);
 	BUG_ON(err);
 
-	return *ctx;
+	retval = *ctx;
+	barrier_data(ctx);
+	return retval;
 }
 
 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
@@ -1232,7 +1240,7 @@ static inline void dec_valid_block_count
 
 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
 {
-	percpu_counter_inc(&sbi->nr_pages[count_type]);
+	atomic_inc(&sbi->nr_pages[count_type]);
 
 	if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES)
 		return;
@@ -1242,14 +1250,14 @@ static inline void inc_page_count(struct
 
 static inline void inode_inc_dirty_pages(struct inode *inode)
 {
-	percpu_counter_inc(&F2FS_I(inode)->dirty_pages);
+	atomic_inc(&F2FS_I(inode)->dirty_pages);
 	inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
 				F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
 }
 
 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
 {
-	percpu_counter_dec(&sbi->nr_pages[count_type]);
+	atomic_dec(&sbi->nr_pages[count_type]);
 }
 
 static inline void inode_dec_dirty_pages(struct inode *inode)
@@ -1258,19 +1266,19 @@ static inline void inode_dec_dirty_pages
 			!S_ISLNK(inode->i_mode))
 		return;
 
-	percpu_counter_dec(&F2FS_I(inode)->dirty_pages);
+	atomic_dec(&F2FS_I(inode)->dirty_pages);
 	dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
 				F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
 }
 
 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
 {
-	return percpu_counter_sum_positive(&sbi->nr_pages[count_type]);
+	return atomic_read(&sbi->nr_pages[count_type]);
 }
 
-static inline s64 get_dirty_pages(struct inode *inode)
+static inline int get_dirty_pages(struct inode *inode)
 {
-	return percpu_counter_sum_positive(&F2FS_I(inode)->dirty_pages);
+	return atomic_read(&F2FS_I(inode)->dirty_pages);
 }
 
 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
@@ -1329,22 +1337,27 @@ static inline void *__bitmap_ptr(struct
 
 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
 {
-	block_t start_addr;
-	struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
-	unsigned long long ckpt_version = cur_cp_version(ckpt);
-
-	start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
+	block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
 
-	/*
-	 * odd numbered checkpoint should at cp segment 0
-	 * and even segment must be at cp segment 1
-	 */
-	if (!(ckpt_version & 1))
+	if (sbi->cur_cp_pack == 2)
 		start_addr += sbi->blocks_per_seg;
+	return start_addr;
+}
+
+static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
+{
+	block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
 
+	if (sbi->cur_cp_pack == 1)
+		start_addr += sbi->blocks_per_seg;
 	return start_addr;
 }
 
+static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
+{
+	sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
+}
+
 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
 {
 	return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
@@ -2006,7 +2019,8 @@ int sanity_check_ckpt(struct f2fs_sb_inf
 /*
  * hash.c
  */
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *);
+f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
+				struct fscrypt_name *fname);
 
 /*
  * node.c
@@ -2181,8 +2195,8 @@ struct f2fs_stat_info {
 	unsigned long long hit_largest, hit_cached, hit_rbtree;
 	unsigned long long hit_total, total_ext;
 	int ext_tree, zombie_tree, ext_node;
-	s64 ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
-	s64 inmem_pages;
+	int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
+	int inmem_pages;
 	unsigned int ndirty_dirs, ndirty_files, ndirty_all;
 	int nats, dirty_nats, sits, dirty_sits, fnids;
 	int total_count, utilization;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/file.c linux-libre-4.9.52-gnu/fs/f2fs/file.c
--- linux-libre-4.9-gnu/fs/f2fs/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -967,7 +967,7 @@ static int __clone_blkaddrs(struct inode
 				new_size = (dst + i) << PAGE_SHIFT;
 				if (dst_inode->i_size < new_size)
 					f2fs_i_size_write(dst_inode, new_size);
-			} while ((do_replace[i] || blkaddr[i] == NULL_ADDR) && --ilen);
+			} while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
 
 			f2fs_put_dnode(&dn);
 		} else {
@@ -1526,7 +1526,7 @@ static int f2fs_ioc_start_atomic_write(s
 		goto out;
 
 	f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
-		"Unexpected flush for atomic writes: ino=%lu, npages=%lld",
+		"Unexpected flush for atomic writes: ino=%lu, npages=%u",
 					inode->i_ino, get_dirty_pages(inode));
 	ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/gc.c linux-libre-4.9.52-gnu/fs/f2fs/gc.c
--- linux-libre-4.9-gnu/fs/f2fs/gc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/gc.c	2017-09-27 08:40:05.000000000 -0400
@@ -166,7 +166,8 @@ static void select_policy(struct f2fs_sb
 		p->ofs_unit = sbi->segs_per_sec;
 	}
 
-	if (p->max_search > sbi->max_victim_search)
+	/* we need to check every dirty segments in the FG_GC case */
+	if (gc_type != FG_GC && p->max_search > sbi->max_victim_search)
 		p->max_search = sbi->max_victim_search;
 
 	p->offset = sbi->last_victim[p->gc_mode];
@@ -199,6 +200,10 @@ static unsigned int check_bg_victims(str
 	for_each_set_bit(secno, dirty_i->victim_secmap, MAIN_SECS(sbi)) {
 		if (sec_usage_check(sbi, secno))
 			continue;
+
+		if (no_fggc_candidate(sbi, secno))
+			continue;
+
 		clear_bit(secno, dirty_i->victim_secmap);
 		return secno * sbi->segs_per_sec;
 	}
@@ -322,13 +327,15 @@ static int get_victim_by_default(struct
 			nsearched++;
 		}
 
-
 		secno = GET_SECNO(sbi, segno);
 
 		if (sec_usage_check(sbi, secno))
 			goto next;
 		if (gc_type == BG_GC && test_bit(secno, dirty_i->victim_secmap))
 			goto next;
+		if (gc_type == FG_GC && p.alloc_mode == LFS &&
+					no_fggc_candidate(sbi, secno))
+			goto next;
 
 		cost = get_gc_cost(sbi, segno, &p);
 
@@ -972,5 +979,16 @@ stop:
 
 void build_gc_manager(struct f2fs_sb_info *sbi)
 {
+	u64 main_count, resv_count, ovp_count, blocks_per_sec;
+
 	DIRTY_I(sbi)->v_ops = &default_v_ops;
+
+	/* threshold of # of valid blocks in a section for victims of FG_GC */
+	main_count = SM_I(sbi)->main_segments << sbi->log_blocks_per_seg;
+	resv_count = SM_I(sbi)->reserved_segments << sbi->log_blocks_per_seg;
+	ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg;
+	blocks_per_sec = sbi->blocks_per_seg * sbi->segs_per_sec;
+
+	sbi->fggc_threshold = div_u64((main_count - ovp_count) * blocks_per_sec,
+					(main_count - resv_count));
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/hash.c linux-libre-4.9.52-gnu/fs/f2fs/hash.c
--- linux-libre-4.9-gnu/fs/f2fs/hash.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/hash.c	2017-09-27 08:40:05.000000000 -0400
@@ -70,7 +70,8 @@ static void str2hashbuf(const unsigned c
 		*buf++ = pad;
 }
 
-f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info)
+f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
+				struct fscrypt_name *fname)
 {
 	__u32 hash;
 	f2fs_hash_t f2fs_hash;
@@ -79,6 +80,10 @@ f2fs_hash_t f2fs_dentry_hash(const struc
 	const unsigned char *name = name_info->name;
 	size_t len = name_info->len;
 
+	/* encrypted bigname case */
+	if (fname && !fname->disk_name.name)
+		return cpu_to_le32(fname->hash);
+
 	if (is_dot_dotdot(name_info))
 		return 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/inline.c linux-libre-4.9.52-gnu/fs/f2fs/inline.c
--- linux-libre-4.9-gnu/fs/f2fs/inline.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/inline.c	2017-09-27 08:40:05.000000000 -0400
@@ -294,7 +294,7 @@ struct f2fs_dir_entry *find_in_inline_di
 		return NULL;
 	}
 
-	namehash = f2fs_dentry_hash(&name);
+	namehash = f2fs_dentry_hash(&name, fname);
 
 	inline_dentry = inline_data_addr(ipage);
 
@@ -531,7 +531,7 @@ int f2fs_add_inline_entry(struct inode *
 
 	f2fs_wait_on_page_writeback(ipage, NODE, true);
 
-	name_hash = f2fs_dentry_hash(new_name);
+	name_hash = f2fs_dentry_hash(new_name, NULL);
 	make_dentry_ptr(NULL, &d, (void *)dentry_blk, 2);
 	f2fs_update_dentry(ino, mode, &d, new_name, name_hash, bit_pos);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/recovery.c linux-libre-4.9.52-gnu/fs/f2fs/recovery.c
--- linux-libre-4.9-gnu/fs/f2fs/recovery.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/recovery.c	2017-09-27 08:40:05.000000000 -0400
@@ -316,7 +316,7 @@ static int check_index_in_prev_nodes(str
 		return 0;
 
 	/* Get the previous summary */
-	for (i = CURSEG_WARM_DATA; i <= CURSEG_COLD_DATA; i++) {
+	for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
 		struct curseg_info *curseg = CURSEG_I(sbi, i);
 		if (curseg->segno == segno) {
 			sum = curseg->sum_blk->entries[blkoff];
@@ -626,8 +626,6 @@ out:
 	}
 
 	clear_sbi_flag(sbi, SBI_POR_DOING);
-	if (err)
-		set_ckpt_flags(sbi, CP_ERROR_FLAG);
 	mutex_unlock(&sbi->cp_mutex);
 
 	/* let's drop all the directory inodes for clean checkpoint */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/segment.c linux-libre-4.9.52-gnu/fs/f2fs/segment.c
--- linux-libre-4.9-gnu/fs/f2fs/segment.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/segment.c	2017-09-27 08:40:05.000000000 -0400
@@ -813,6 +813,8 @@ next:
 		start = start_segno + sbi->segs_per_sec;
 		if (start < end)
 			goto next;
+		else
+			end = start - 1;
 	}
 	mutex_unlock(&dirty_i->seglist_lock);
 
@@ -1803,6 +1805,8 @@ static int read_normal_summaries(struct
 
 static int restore_curseg_summaries(struct f2fs_sb_info *sbi)
 {
+	struct f2fs_journal *sit_j = CURSEG_I(sbi, CURSEG_COLD_DATA)->journal;
+	struct f2fs_journal *nat_j = CURSEG_I(sbi, CURSEG_HOT_DATA)->journal;
 	int type = CURSEG_HOT_DATA;
 	int err;
 
@@ -1829,6 +1833,11 @@ static int restore_curseg_summaries(stru
 			return err;
 	}
 
+	/* sanity check for summary blocks */
+	if (nats_in_cursum(nat_j) > NAT_JOURNAL_ENTRIES ||
+			sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES)
+		return -EINVAL;
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/segment.h linux-libre-4.9.52-gnu/fs/f2fs/segment.h
--- linux-libre-4.9-gnu/fs/f2fs/segment.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/segment.h	2017-09-27 08:40:05.000000000 -0400
@@ -688,6 +688,15 @@ static inline block_t sum_blk_addr(struc
 				- (base + 1) + type;
 }
 
+static inline bool no_fggc_candidate(struct f2fs_sb_info *sbi,
+						unsigned int secno)
+{
+	if (get_valid_blocks(sbi, secno, sbi->segs_per_sec) >=
+						sbi->fggc_threshold)
+		return true;
+	return false;
+}
+
 static inline bool sec_usage_check(struct f2fs_sb_info *sbi, unsigned int secno)
 {
 	if (IS_CURSEC(sbi, secno) || (sbi->cur_victim_sec == secno))
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/f2fs/super.c linux-libre-4.9.52-gnu/fs/f2fs/super.c
--- linux-libre-4.9-gnu/fs/f2fs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/f2fs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -558,13 +558,9 @@ static struct inode *f2fs_alloc_inode(st
 
 	init_once((void *) fi);
 
-	if (percpu_counter_init(&fi->dirty_pages, 0, GFP_NOFS)) {
-		kmem_cache_free(f2fs_inode_cachep, fi);
-		return NULL;
-	}
-
 	/* Initialize f2fs-specific inode info */
 	fi->vfs_inode.i_version = 1;
+	atomic_set(&fi->dirty_pages, 0);
 	fi->i_current_depth = 1;
 	fi->i_advise = 0;
 	init_rwsem(&fi->i_sem);
@@ -687,16 +683,11 @@ static void f2fs_i_callback(struct rcu_h
 
 static void f2fs_destroy_inode(struct inode *inode)
 {
-	percpu_counter_destroy(&F2FS_I(inode)->dirty_pages);
 	call_rcu(&inode->i_rcu, f2fs_i_callback);
 }
 
 static void destroy_percpu_info(struct f2fs_sb_info *sbi)
 {
-	int i;
-
-	for (i = 0; i < NR_COUNT_TYPE; i++)
-		percpu_counter_destroy(&sbi->nr_pages[i]);
 	percpu_counter_destroy(&sbi->alloc_valid_block_count);
 	percpu_counter_destroy(&sbi->total_valid_inode_count);
 }
@@ -1414,6 +1405,13 @@ static int sanity_check_raw_super(struct
 		return 1;
 	}
 
+	if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) {
+		f2fs_msg(sb, KERN_INFO,
+			"Invalid segment count (%u)",
+			le32_to_cpu(raw_super->segment_count));
+		return 1;
+	}
+
 	/* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
 	if (sanity_check_area_boundary(sbi, bh))
 		return 1;
@@ -1426,6 +1424,8 @@ int sanity_check_ckpt(struct f2fs_sb_inf
 	unsigned int total, fsmeta;
 	struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
 	struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
+	unsigned int main_segs, blocks_per_seg;
+	int i;
 
 	total = le32_to_cpu(raw_super->segment_count);
 	fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
@@ -1437,6 +1437,20 @@ int sanity_check_ckpt(struct f2fs_sb_inf
 	if (unlikely(fsmeta >= total))
 		return 1;
 
+	main_segs = le32_to_cpu(raw_super->segment_count_main);
+	blocks_per_seg = sbi->blocks_per_seg;
+
+	for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
+		if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
+			le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
+			return 1;
+	}
+	for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
+		if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
+			le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
+			return 1;
+	}
+
 	if (unlikely(f2fs_cp_error(sbi))) {
 		f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck");
 		return 1;
@@ -1447,6 +1461,7 @@ int sanity_check_ckpt(struct f2fs_sb_inf
 static void init_sb_info(struct f2fs_sb_info *sbi)
 {
 	struct f2fs_super_block *raw_super = sbi->raw_super;
+	int i;
 
 	sbi->log_sectors_per_block =
 		le32_to_cpu(raw_super->log_sectors_per_block);
@@ -1471,6 +1486,9 @@ static void init_sb_info(struct f2fs_sb_
 	sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
 	clear_sbi_flag(sbi, SBI_NEED_FSCK);
 
+	for (i = 0; i < NR_COUNT_TYPE; i++)
+		atomic_set(&sbi->nr_pages[i], 0);
+
 	INIT_LIST_HEAD(&sbi->s_list);
 	mutex_init(&sbi->umount_mutex);
 	mutex_init(&sbi->wio_mutex[NODE]);
@@ -1486,13 +1504,7 @@ static void init_sb_info(struct f2fs_sb_
 
 static int init_percpu_info(struct f2fs_sb_info *sbi)
 {
-	int i, err;
-
-	for (i = 0; i < NR_COUNT_TYPE; i++) {
-		err = percpu_counter_init(&sbi->nr_pages[i], 0, GFP_KERNEL);
-		if (err)
-			return err;
-	}
+	int err;
 
 	err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
 	if (err)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fat/inode.c linux-libre-4.9.52-gnu/fs/fat/inode.c
--- linux-libre-4.9-gnu/fs/fat/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fat/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -1359,6 +1359,16 @@ out:
 	return 0;
 }
 
+static void fat_dummy_inode_init(struct inode *inode)
+{
+	/* Initialize this dummy inode to work as no-op. */
+	MSDOS_I(inode)->mmu_private = 0;
+	MSDOS_I(inode)->i_start = 0;
+	MSDOS_I(inode)->i_logstart = 0;
+	MSDOS_I(inode)->i_attrs = 0;
+	MSDOS_I(inode)->i_pos = 0;
+}
+
 static int fat_read_root(struct inode *inode)
 {
 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
@@ -1803,12 +1813,13 @@ int fat_fill_super(struct super_block *s
 	fat_inode = new_inode(sb);
 	if (!fat_inode)
 		goto out_fail;
-	MSDOS_I(fat_inode)->i_pos = 0;
+	fat_dummy_inode_init(fat_inode);
 	sbi->fat_inode = fat_inode;
 
 	fsinfo_inode = new_inode(sb);
 	if (!fsinfo_inode)
 		goto out_fail;
+	fat_dummy_inode_init(fsinfo_inode);
 	fsinfo_inode->i_ino = MSDOS_FSINFO_INO;
 	sbi->fsinfo_inode = fsinfo_inode;
 	insert_inode_hash(fsinfo_inode);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fcntl.c linux-libre-4.9.52-gnu/fs/fcntl.c
--- linux-libre-4.9-gnu/fs/fcntl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fcntl.c	2017-09-27 08:40:05.000000000 -0400
@@ -741,16 +741,10 @@ static int __init fcntl_init(void)
 	 * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY
 	 * is defined as O_NONBLOCK on some platforms and not on others.
 	 */
-	BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32(
-		O_RDONLY	| O_WRONLY	| O_RDWR	|
-		O_CREAT		| O_EXCL	| O_NOCTTY	|
-		O_TRUNC		| O_APPEND	| /* O_NONBLOCK	| */
-		__O_SYNC	| O_DSYNC	| FASYNC	|
-		O_DIRECT	| O_LARGEFILE	| O_DIRECTORY	|
-		O_NOFOLLOW	| O_NOATIME	| O_CLOEXEC	|
-		__FMODE_EXEC	| O_PATH	| __O_TMPFILE	|
-		__FMODE_NONOTIFY
-		));
+	BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ !=
+		HWEIGHT32(
+			(VALID_OPEN_FLAGS & ~(O_NONBLOCK | O_NDELAY)) |
+			__FMODE_EXEC | __FMODE_NONOTIFY));
 
 	fasync_cache = kmem_cache_create("fasync_cache",
 		sizeof(struct fasync_struct), 0, SLAB_PANIC, NULL);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fscache/cookie.c linux-libre-4.9.52-gnu/fs/fscache/cookie.c
--- linux-libre-4.9-gnu/fs/fscache/cookie.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fscache/cookie.c	2017-09-27 08:40:05.000000000 -0400
@@ -542,6 +542,7 @@ void __fscache_disable_cookie(struct fsc
 		hlist_for_each_entry(object, &cookie->backing_objects, cookie_link) {
 			if (invalidate)
 				set_bit(FSCACHE_OBJECT_RETIRED, &object->flags);
+			clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
 			fscache_raise_event(object, FSCACHE_OBJECT_EV_KILL);
 		}
 	} else {
@@ -560,6 +561,10 @@ void __fscache_disable_cookie(struct fsc
 		wait_on_atomic_t(&cookie->n_active, fscache_wait_atomic_t,
 				 TASK_UNINTERRUPTIBLE);
 
+	/* Make sure any pending writes are cancelled. */
+	if (cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX)
+		fscache_invalidate_writes(cookie);
+
 	/* Reset the cookie state if it wasn't relinquished */
 	if (!test_bit(FSCACHE_COOKIE_RELINQUISHED, &cookie->flags)) {
 		atomic_inc(&cookie->n_active);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fscache/netfs.c linux-libre-4.9.52-gnu/fs/fscache/netfs.c
--- linux-libre-4.9-gnu/fs/fscache/netfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fscache/netfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,6 +48,7 @@ int __fscache_register_netfs(struct fsca
 	cookie->flags		= 1 << FSCACHE_COOKIE_ENABLED;
 
 	spin_lock_init(&cookie->lock);
+	spin_lock_init(&cookie->stores_lock);
 	INIT_HLIST_HEAD(&cookie->backing_objects);
 
 	/* check the netfs type is not already present */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fscache/object.c linux-libre-4.9.52-gnu/fs/fscache/object.c
--- linux-libre-4.9-gnu/fs/fscache/object.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fscache/object.c	2017-09-27 08:40:05.000000000 -0400
@@ -30,6 +30,7 @@ static const struct fscache_state *fscac
 static const struct fscache_state *fscache_object_available(struct fscache_object *, int);
 static const struct fscache_state *fscache_parent_ready(struct fscache_object *, int);
 static const struct fscache_state *fscache_update_object(struct fscache_object *, int);
+static const struct fscache_state *fscache_object_dead(struct fscache_object *, int);
 
 #define __STATE_NAME(n) fscache_osm_##n
 #define STATE(n) (&__STATE_NAME(n))
@@ -91,7 +92,7 @@ static WORK_STATE(LOOKUP_FAILURE,	"LCFL"
 static WORK_STATE(KILL_OBJECT,		"KILL", fscache_kill_object);
 static WORK_STATE(KILL_DEPENDENTS,	"KDEP", fscache_kill_dependents);
 static WORK_STATE(DROP_OBJECT,		"DROP", fscache_drop_object);
-static WORK_STATE(OBJECT_DEAD,		"DEAD", (void*)2UL);
+static WORK_STATE(OBJECT_DEAD,		"DEAD", fscache_object_dead);
 
 static WAIT_STATE(WAIT_FOR_INIT,	"?INI",
 		  TRANSIT_TO(INIT_OBJECT,	1 << FSCACHE_OBJECT_EV_NEW_CHILD));
@@ -229,6 +230,10 @@ execute_work_state:
 	event = -1;
 	if (new_state == NO_TRANSIT) {
 		_debug("{OBJ%x} %s notrans", object->debug_id, state->name);
+		if (unlikely(state == STATE(OBJECT_DEAD))) {
+			_leave(" [dead]");
+			return;
+		}
 		fscache_enqueue_object(object);
 		event_mask = object->oob_event_mask;
 		goto unmask_events;
@@ -239,7 +244,7 @@ execute_work_state:
 	object->state = state = new_state;
 
 	if (state->work) {
-		if (unlikely(state->work == ((void *)2UL))) {
+		if (unlikely(state == STATE(OBJECT_DEAD))) {
 			_leave(" [dead]");
 			return;
 		}
@@ -645,6 +650,12 @@ static const struct fscache_state *fscac
 	fscache_mark_object_dead(object);
 	object->oob_event_mask = 0;
 
+	if (test_bit(FSCACHE_OBJECT_RETIRED, &object->flags)) {
+		/* Reject any new read/write ops and abort any that are pending. */
+		clear_bit(FSCACHE_OBJECT_PENDING_WRITE, &object->flags);
+		fscache_cancel_all_ops(object);
+	}
+
 	if (list_empty(&object->dependents) &&
 	    object->n_ops == 0 &&
 	    object->n_children == 0)
@@ -1077,3 +1088,20 @@ void fscache_object_mark_killed(struct f
 	}
 }
 EXPORT_SYMBOL(fscache_object_mark_killed);
+
+/*
+ * The object is dead.  We can get here if an object gets queued by an event
+ * that would lead to its death (such as EV_KILL) when the dispatcher is
+ * already running (and so can be requeued) but hasn't yet cleared the event
+ * mask.
+ */
+static const struct fscache_state *fscache_object_dead(struct fscache_object *object,
+						       int event)
+{
+	if (!test_and_set_bit(FSCACHE_OBJECT_RUN_AFTER_DEAD,
+			      &object->flags))
+		return NO_TRANSIT;
+
+	WARN(true, "FS-Cache object redispatched after death");
+	return NO_TRANSIT;
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fuse/dev.c linux-libre-4.9.52-gnu/fs/fuse/dev.c
--- linux-libre-4.9-gnu/fs/fuse/dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fuse/dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -399,6 +399,10 @@ static void request_end(struct fuse_conn
 static void queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
 {
 	spin_lock(&fiq->waitq.lock);
+	if (test_bit(FR_FINISHED, &req->flags)) {
+		spin_unlock(&fiq->waitq.lock);
+		return;
+	}
 	if (list_empty(&req->intr_entry)) {
 		list_add_tail(&req->intr_entry, &fiq->interrupts);
 		wake_up_locked(&fiq->waitq);
@@ -1372,6 +1376,7 @@ static ssize_t fuse_dev_splice_read(stru
 		 * code can Oops if the buffer persists after module unload.
 		 */
 		bufs[page_nr].ops = &nosteal_pipe_buf_ops;
+		bufs[page_nr].flags = 0;
 		ret = add_to_pipe(pipe, &bufs[page_nr++]);
 		if (unlikely(ret < 0))
 			break;
@@ -2025,7 +2030,6 @@ static void end_requests(struct fuse_con
 		struct fuse_req *req;
 		req = list_entry(head->next, struct fuse_req, list);
 		req->out.h.error = -ECONNABORTED;
-		clear_bit(FR_PENDING, &req->flags);
 		clear_bit(FR_SENT, &req->flags);
 		list_del_init(&req->list);
 		request_end(fc, req);
@@ -2103,6 +2107,8 @@ void fuse_abort_conn(struct fuse_conn *f
 		spin_lock(&fiq->waitq.lock);
 		fiq->connected = 0;
 		list_splice_init(&fiq->pending, &to_end2);
+		list_for_each_entry(req, &to_end2, list)
+			clear_bit(FR_PENDING, &req->flags);
 		while (forget_pending(fiq))
 			kfree(dequeue_forget(fiq, 1, NULL));
 		wake_up_all_locked(&fiq->waitq);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fuse/dir.c linux-libre-4.9.52-gnu/fs/fuse/dir.c
--- linux-libre-4.9-gnu/fs/fuse/dir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fuse/dir.c	2017-09-27 08:40:05.000000000 -0400
@@ -68,7 +68,7 @@ static u64 time_to_jiffies(u64 sec, u32
 	if (sec || nsec) {
 		struct timespec64 ts = {
 			sec,
-			max_t(u32, nsec, NSEC_PER_SEC - 1)
+			min_t(u32, nsec, NSEC_PER_SEC - 1)
 		};
 
 		return get_jiffies_64() + timespec64_to_jiffies(&ts);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/fuse/file.c linux-libre-4.9.52-gnu/fs/fuse/file.c
--- linux-libre-4.9-gnu/fs/fuse/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/fuse/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -46,7 +46,7 @@ struct fuse_file *fuse_file_alloc(struct
 {
 	struct fuse_file *ff;
 
-	ff = kmalloc(sizeof(struct fuse_file), GFP_KERNEL);
+	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL);
 	if (unlikely(!ff))
 		return NULL;
 
@@ -100,6 +100,7 @@ static void fuse_file_put(struct fuse_fi
 			iput(req->misc.release.inode);
 			fuse_put_request(ff->fc, req);
 		} else if (sync) {
+			__set_bit(FR_FORCE, &req->flags);
 			__clear_bit(FR_BACKGROUND, &req->flags);
 			fuse_request_send(ff->fc, req);
 			iput(req->misc.release.inode);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/gfs2/glock.c linux-libre-4.9.52-gnu/fs/gfs2/glock.c
--- linux-libre-4.9-gnu/fs/gfs2/glock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/gfs2/glock.c	2017-09-27 08:40:05.000000000 -0400
@@ -80,9 +80,9 @@ static struct rhashtable_params ht_parms
 
 static struct rhashtable gl_hash_table;
 
-void gfs2_glock_free(struct gfs2_glock *gl)
+static void gfs2_glock_dealloc(struct rcu_head *rcu)
 {
-	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
+	struct gfs2_glock *gl = container_of(rcu, struct gfs2_glock, gl_rcu);
 
 	if (gl->gl_ops->go_flags & GLOF_ASPACE) {
 		kmem_cache_free(gfs2_glock_aspace_cachep, gl);
@@ -90,6 +90,13 @@ void gfs2_glock_free(struct gfs2_glock *
 		kfree(gl->gl_lksb.sb_lvbptr);
 		kmem_cache_free(gfs2_glock_cachep, gl);
 	}
+}
+
+void gfs2_glock_free(struct gfs2_glock *gl)
+{
+	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
+
+	call_rcu(&gl->gl_rcu, gfs2_glock_dealloc);
 	if (atomic_dec_and_test(&sdp->sd_glock_disposal))
 		wake_up(&sdp->sd_glock_wait);
 }
@@ -658,9 +665,11 @@ int gfs2_glock_get(struct gfs2_sbd *sdp,
 	struct kmem_cache *cachep;
 	int ret, tries = 0;
 
+	rcu_read_lock();
 	gl = rhashtable_lookup_fast(&gl_hash_table, &name, ht_parms);
 	if (gl && !lockref_get_not_dead(&gl->gl_lockref))
 		gl = NULL;
+	rcu_read_unlock();
 
 	*glp = gl;
 	if (gl)
@@ -728,15 +737,18 @@ again:
 
 	if (ret == -EEXIST) {
 		ret = 0;
+		rcu_read_lock();
 		tmp = rhashtable_lookup_fast(&gl_hash_table, &name, ht_parms);
 		if (tmp == NULL || !lockref_get_not_dead(&tmp->gl_lockref)) {
 			if (++tries < 100) {
+				rcu_read_unlock();
 				cond_resched();
 				goto again;
 			}
 			tmp = NULL;
 			ret = -ENOMEM;
 		}
+		rcu_read_unlock();
 	} else {
 		WARN_ON_ONCE(ret);
 	}
@@ -1420,26 +1432,32 @@ static struct shrinker glock_shrinker =
  * @sdp: the filesystem
  * @bucket: the bucket
  *
+ * Note that the function can be called multiple times on the same
+ * object.  So the user must ensure that the function can cope with
+ * that.
  */
 
 static void glock_hash_walk(glock_examiner examiner, const struct gfs2_sbd *sdp)
 {
 	struct gfs2_glock *gl;
-	struct rhash_head *pos;
-	const struct bucket_table *tbl;
-	int i;
+	struct rhashtable_iter iter;
 
-	rcu_read_lock();
-	tbl = rht_dereference_rcu(gl_hash_table.tbl, &gl_hash_table);
-	for (i = 0; i < tbl->size; i++) {
-		rht_for_each_entry_rcu(gl, pos, tbl, i, gl_node) {
+	rhashtable_walk_enter(&gl_hash_table, &iter);
+
+	do {
+		gl = ERR_PTR(rhashtable_walk_start(&iter));
+		if (gl)
+			continue;
+
+		while ((gl = rhashtable_walk_next(&iter)) && !IS_ERR(gl))
 			if ((gl->gl_name.ln_sbd == sdp) &&
 			    lockref_get_not_dead(&gl->gl_lockref))
 				examiner(gl);
-		}
-	}
-	rcu_read_unlock();
-	cond_resched();
+
+		rhashtable_walk_stop(&iter);
+	} while (cond_resched(), gl == ERR_PTR(-EAGAIN));
+
+	rhashtable_walk_exit(&iter);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/gfs2/incore.h linux-libre-4.9.52-gnu/fs/gfs2/incore.h
--- linux-libre-4.9-gnu/fs/gfs2/incore.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/gfs2/incore.h	2017-09-27 08:40:05.000000000 -0400
@@ -207,7 +207,7 @@ struct lm_lockname {
 	struct gfs2_sbd *ln_sbd;
 	u64 ln_number;
 	unsigned int ln_type;
-};
+} __packed __aligned(sizeof(int));
 
 #define lm_name_equal(name1, name2) \
         (((name1)->ln_number == (name2)->ln_number) &&	\
@@ -370,6 +370,7 @@ struct gfs2_glock {
 			loff_t end;
 		} gl_vm;
 	};
+	struct rcu_head gl_rcu;
 	struct rhash_head gl_node;
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/hfsplus/posix_acl.c linux-libre-4.9.52-gnu/fs/hfsplus/posix_acl.c
--- linux-libre-4.9-gnu/fs/hfsplus/posix_acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/hfsplus/posix_acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,8 +51,8 @@ struct posix_acl *hfsplus_get_posix_acl(
 	return acl;
 }
 
-int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
-		int type)
+static int __hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
+				   int type)
 {
 	int err;
 	char *xattr_name;
@@ -64,12 +64,6 @@ int hfsplus_set_posix_acl(struct inode *
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		xattr_name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (err)
-				return err;
-		}
-		err = 0;
 		break;
 
 	case ACL_TYPE_DEFAULT:
@@ -105,6 +99,18 @@ end_set_acl:
 	return err;
 }
 
+int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+	int err;
+
+	if (type == ACL_TYPE_ACCESS && acl) {
+		err = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+		if (err)
+			return err;
+	}
+	return __hfsplus_set_posix_acl(inode, acl, type);
+}
+
 int hfsplus_init_posix_acl(struct inode *inode, struct inode *dir)
 {
 	int err = 0;
@@ -122,15 +128,15 @@ int hfsplus_init_posix_acl(struct inode
 		return err;
 
 	if (default_acl) {
-		err = hfsplus_set_posix_acl(inode, default_acl,
-					    ACL_TYPE_DEFAULT);
+		err = __hfsplus_set_posix_acl(inode, default_acl,
+					      ACL_TYPE_DEFAULT);
 		posix_acl_release(default_acl);
 	}
 
 	if (acl) {
 		if (!err)
-			err = hfsplus_set_posix_acl(inode, acl,
-						    ACL_TYPE_ACCESS);
+			err = __hfsplus_set_posix_acl(inode, acl,
+						      ACL_TYPE_ACCESS);
 		posix_acl_release(acl);
 	}
 	return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/hugetlbfs/inode.c linux-libre-4.9.52-gnu/fs/hugetlbfs/inode.c
--- linux-libre-4.9-gnu/fs/hugetlbfs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/hugetlbfs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -191,7 +191,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/inode.c linux-libre-4.9.52-gnu/fs/inode.c
--- linux-libre-4.9-gnu/fs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -637,6 +637,7 @@ again:
 
 	dispose_list(&dispose);
 }
+EXPORT_SYMBOL_GPL(evict_inodes);
 
 /**
  * invalidate_inodes	- attempt to free all inodes on a superblock
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/internal.h linux-libre-4.9.52-gnu/fs/internal.h
--- linux-libre-4.9-gnu/fs/internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -136,7 +136,6 @@ extern bool atime_needs_update_rcu(const
 extern void inode_io_list_del(struct inode *inode);
 
 extern long get_nr_dirty_inodes(void);
-extern void evict_inodes(struct super_block *);
 extern int invalidate_inodes(struct super_block *, bool);
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/iomap.c linux-libre-4.9.52-gnu/fs/iomap.c
--- linux-libre-4.9-gnu/fs/iomap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/iomap.c	2017-09-27 08:40:05.000000000 -0400
@@ -113,6 +113,9 @@ iomap_write_begin(struct inode *inode, l
 
 	BUG_ON(pos + len > iomap->offset + iomap->length);
 
+	if (fatal_signal_pending(current))
+		return -EINTR;
+
 	page = grab_cache_page_write_begin(inode->i_mapping, index, flags);
 	if (!page)
 		return -ENOMEM;
@@ -278,7 +281,7 @@ iomap_dirty_actor(struct inode *inode, l
 		unsigned long bytes;	/* Bytes to write to page */
 
 		offset = (pos & (PAGE_SIZE - 1));
-		bytes = min_t(unsigned long, PAGE_SIZE - offset, length);
+		bytes = min_t(loff_t, PAGE_SIZE - offset, length);
 
 		rpage = __iomap_read_page(inode, pos);
 		if (IS_ERR(rpage))
@@ -373,7 +376,7 @@ iomap_zero_range_actor(struct inode *ino
 		unsigned offset, bytes;
 
 		offset = pos & (PAGE_SIZE - 1); /* Within page */
-		bytes = min_t(unsigned, PAGE_SIZE - offset, count);
+		bytes = min_t(loff_t, PAGE_SIZE - offset, count);
 
 		if (IS_DAX(inode))
 			status = iomap_dax_zero(pos, offset, bytes, iomap);
@@ -416,8 +419,8 @@ int
 iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
 		struct iomap_ops *ops)
 {
-	unsigned blocksize = (1 << inode->i_blkbits);
-	unsigned off = pos & (blocksize - 1);
+	unsigned int blocksize = i_blocksize(inode);
+	unsigned int off = pos & (blocksize - 1);
 
 	/* Block boundary? Nothing to do */
 	if (!off)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/jbd2/journal.c linux-libre-4.9.52-gnu/fs/jbd2/journal.c
--- linux-libre-4.9-gnu/fs/jbd2/journal.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/jbd2/journal.c	2017-09-27 08:40:05.000000000 -0400
@@ -1125,10 +1125,8 @@ static journal_t *journal_init_common(st
 
 	/* Set up a default-sized revoke table for the new mount. */
 	err = jbd2_journal_init_revoke(journal, JOURNAL_REVOKE_DEFAULT_HASH);
-	if (err) {
-		kfree(journal);
-		return NULL;
-	}
+	if (err)
+		goto err_cleanup;
 
 	spin_lock_init(&journal->j_history_lock);
 
@@ -1145,23 +1143,25 @@ static journal_t *journal_init_common(st
 	journal->j_wbufsize = n;
 	journal->j_wbuf = kmalloc_array(n, sizeof(struct buffer_head *),
 					GFP_KERNEL);
-	if (!journal->j_wbuf) {
-		kfree(journal);
-		return NULL;
-	}
+	if (!journal->j_wbuf)
+		goto err_cleanup;
 
 	bh = getblk_unmovable(journal->j_dev, start, journal->j_blocksize);
 	if (!bh) {
 		pr_err("%s: Cannot get buffer for journal superblock\n",
 			__func__);
-		kfree(journal->j_wbuf);
-		kfree(journal);
-		return NULL;
+		goto err_cleanup;
 	}
 	journal->j_sb_buffer = bh;
 	journal->j_superblock = (journal_superblock_t *)bh->b_data;
 
 	return journal;
+
+err_cleanup:
+	kfree(journal->j_wbuf);
+	jbd2_journal_destroy_revoke(journal);
+	kfree(journal);
+	return NULL;
 }
 
 /* jbd2_journal_init_dev and jbd2_journal_init_inode:
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/jbd2/revoke.c linux-libre-4.9.52-gnu/fs/jbd2/revoke.c
--- linux-libre-4.9-gnu/fs/jbd2/revoke.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/jbd2/revoke.c	2017-09-27 08:40:05.000000000 -0400
@@ -280,6 +280,7 @@ int jbd2_journal_init_revoke(journal_t *
 
 fail1:
 	jbd2_journal_destroy_revoke_table(journal->j_revoke_table[0]);
+	journal->j_revoke_table[0] = NULL;
 fail0:
 	return -ENOMEM;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/jbd2/transaction.c linux-libre-4.9.52-gnu/fs/jbd2/transaction.c
--- linux-libre-4.9-gnu/fs/jbd2/transaction.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/jbd2/transaction.c	2017-09-27 08:40:05.000000000 -0400
@@ -1863,7 +1863,9 @@ static void __jbd2_journal_temp_unlink_b
 
 	__blist_del_buffer(list, jh);
 	jh->b_jlist = BJ_None;
-	if (test_clear_buffer_jbddirty(bh))
+	if (transaction && is_journal_aborted(transaction->t_journal))
+		clear_buffer_jbddirty(bh);
+	else if (test_clear_buffer_jbddirty(bh))
 		mark_buffer_dirty(bh);	/* Expose it to the VM */
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/jfs/acl.c linux-libre-4.9.52-gnu/fs/jfs/acl.c
--- linux-libre-4.9-gnu/fs/jfs/acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/jfs/acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -77,13 +77,6 @@ static int __jfs_set_acl(tid_t tid, stru
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		ea_name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (rc)
-				return rc;
-			inode->i_ctime = current_time(inode);
-			mark_inode_dirty(inode);
-		}
 		break;
 	case ACL_TYPE_DEFAULT:
 		ea_name = XATTR_NAME_POSIX_ACL_DEFAULT;
@@ -118,9 +111,17 @@ int jfs_set_acl(struct inode *inode, str
 
 	tid = txBegin(inode->i_sb, 0);
 	mutex_lock(&JFS_IP(inode)->commit_mutex);
+	if (type == ACL_TYPE_ACCESS && acl) {
+		rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
+		if (rc)
+			goto end_tx;
+		inode->i_ctime = current_time(inode);
+		mark_inode_dirty(inode);
+	}
 	rc = __jfs_set_acl(tid, inode, type, acl);
 	if (!rc)
 		rc = txCommit(tid, 1, &inode, 0);
+end_tx:
 	txEnd(tid);
 	mutex_unlock(&JFS_IP(inode)->commit_mutex);
 	return rc;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/jfs/super.c linux-libre-4.9.52-gnu/fs/jfs/super.c
--- linux-libre-4.9-gnu/fs/jfs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/jfs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -758,7 +758,7 @@ static ssize_t jfs_quota_read(struct sup
 				sb->s_blocksize - offset : toread;
 
 		tmp_bh.b_state = 0;
-		tmp_bh.b_size = 1 << inode->i_blkbits;
+		tmp_bh.b_size = i_blocksize(inode);
 		err = jfs_get_block(inode, blk, &tmp_bh, 0);
 		if (err)
 			return err;
@@ -798,7 +798,7 @@ static ssize_t jfs_quota_write(struct su
 				sb->s_blocksize - offset : towrite;
 
 		tmp_bh.b_state = 0;
-		tmp_bh.b_size = 1 << inode->i_blkbits;
+		tmp_bh.b_size = i_blocksize(inode);
 		err = jfs_get_block(inode, blk, &tmp_bh, 1);
 		if (err)
 			goto out;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/mount.h linux-libre-4.9.52-gnu/fs/mount.h
--- linux-libre-4.9-gnu/fs/mount.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/mount.h	2017-09-27 08:40:05.000000000 -0400
@@ -58,6 +58,7 @@ struct mount {
 	struct mnt_namespace *mnt_ns;	/* containing namespace */
 	struct mountpoint *mnt_mp;	/* where is it mounted */
 	struct hlist_node mnt_mp_list;	/* list mounts with the same mountpoint */
+	struct list_head mnt_umounting; /* list entry for umount propagation */
 #ifdef CONFIG_FSNOTIFY
 	struct hlist_head mnt_fsnotify_marks;
 	__u32 mnt_fsnotify_mask;
@@ -89,7 +90,6 @@ static inline int is_mounted(struct vfsm
 }
 
 extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *);
-extern struct mount *__lookup_mnt_last(struct vfsmount *, struct dentry *);
 
 extern int __legitimize_mnt(struct vfsmount *, unsigned);
 extern bool legitimize_mnt(struct vfsmount *, unsigned);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/mpage.c linux-libre-4.9.52-gnu/fs/mpage.c
--- linux-libre-4.9-gnu/fs/mpage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/mpage.c	2017-09-27 08:40:05.000000000 -0400
@@ -115,7 +115,7 @@ map_buffer_to_page(struct page *page, st
 			SetPageUptodate(page);    
 			return;
 		}
-		create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+		create_empty_buffers(page, i_blocksize(inode), 0);
 	}
 	head = page_buffers(page);
 	page_bh = head;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/namei.c linux-libre-4.9.52-gnu/fs/namei.c
--- linux-libre-4.9-gnu/fs/namei.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/namei.c	2017-09-27 08:40:05.000000000 -0400
@@ -1100,7 +1100,6 @@ static int follow_automount(struct path
 			    bool *need_mntput)
 {
 	struct vfsmount *mnt;
-	const struct cred *old_cred;
 	int err;
 
 	if (!path->dentry->d_op || !path->dentry->d_op->d_automount)
@@ -1129,9 +1128,7 @@ static int follow_automount(struct path
 	if (nd->total_link_count >= 40)
 		return -ELOOP;
 
-	old_cred = override_creds(&init_cred);
 	mnt = path->dentry->d_op->d_automount(path);
-	revert_creds(old_cred);
 	if (IS_ERR(mnt)) {
 		/*
 		 * The filesystem is allowed to return -EISDIR here to indicate
@@ -4339,11 +4336,11 @@ int vfs_rename(struct inode *old_dir, st
 {
 	int error;
 	bool is_dir = d_is_dir(old_dentry);
-	const unsigned char *old_name;
 	struct inode *source = old_dentry->d_inode;
 	struct inode *target = new_dentry->d_inode;
 	bool new_is_dir = false;
 	unsigned max_links = new_dir->i_sb->s_max_links;
+	struct name_snapshot old_name;
 
 	/*
 	 * Check source == target.
@@ -4394,7 +4391,7 @@ int vfs_rename(struct inode *old_dir, st
 	if (error)
 		return error;
 
-	old_name = fsnotify_oldname_init(old_dentry->d_name.name);
+	take_dentry_name_snapshot(&old_name, old_dentry);
 	dget(new_dentry);
 	if (!is_dir || (flags & RENAME_EXCHANGE))
 		lock_two_nondirectories(source, target);
@@ -4449,14 +4446,14 @@ out:
 		inode_unlock(target);
 	dput(new_dentry);
 	if (!error) {
-		fsnotify_move(old_dir, new_dir, old_name, is_dir,
+		fsnotify_move(old_dir, new_dir, old_name.name, is_dir,
 			      !(flags & RENAME_EXCHANGE) ? target : NULL, old_dentry);
 		if (flags & RENAME_EXCHANGE) {
 			fsnotify_move(new_dir, old_dir, old_dentry->d_name.name,
 				      new_is_dir, NULL, new_dentry);
 		}
 	}
-	fsnotify_oldname_free(old_name);
+	release_dentry_name_snapshot(&old_name);
 
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/namespace.c linux-libre-4.9.52-gnu/fs/namespace.c
--- linux-libre-4.9-gnu/fs/namespace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/namespace.c	2017-09-27 08:40:05.000000000 -0400
@@ -237,6 +237,7 @@ static struct mount *alloc_vfsmnt(const
 		INIT_LIST_HEAD(&mnt->mnt_slave_list);
 		INIT_LIST_HEAD(&mnt->mnt_slave);
 		INIT_HLIST_NODE(&mnt->mnt_mp_list);
+		INIT_LIST_HEAD(&mnt->mnt_umounting);
 #ifdef CONFIG_FSNOTIFY
 		INIT_HLIST_HEAD(&mnt->mnt_fsnotify_marks);
 #endif
@@ -641,28 +642,6 @@ struct mount *__lookup_mnt(struct vfsmou
 }
 
 /*
- * find the last mount at @dentry on vfsmount @mnt.
- * mount_lock must be held.
- */
-struct mount *__lookup_mnt_last(struct vfsmount *mnt, struct dentry *dentry)
-{
-	struct mount *p, *res = NULL;
-	p = __lookup_mnt(mnt, dentry);
-	if (!p)
-		goto out;
-	if (!(p->mnt.mnt_flags & MNT_UMOUNT))
-		res = p;
-	hlist_for_each_entry_continue(p, mnt_hash) {
-		if (&p->mnt_parent->mnt != mnt || p->mnt_mountpoint != dentry)
-			break;
-		if (!(p->mnt.mnt_flags & MNT_UMOUNT))
-			res = p;
-	}
-out:
-	return res;
-}
-
-/*
  * lookup_mnt - Return the first child mount mounted at path
  *
  * "First" means first mounted chronologically.  If you create the
@@ -746,26 +725,50 @@ static struct mountpoint *lookup_mountpo
 	return NULL;
 }
 
-static struct mountpoint *new_mountpoint(struct dentry *dentry)
+static struct mountpoint *get_mountpoint(struct dentry *dentry)
 {
-	struct hlist_head *chain = mp_hash(dentry);
-	struct mountpoint *mp;
+	struct mountpoint *mp, *new = NULL;
 	int ret;
 
-	mp = kmalloc(sizeof(struct mountpoint), GFP_KERNEL);
-	if (!mp)
+	if (d_mountpoint(dentry)) {
+mountpoint:
+		read_seqlock_excl(&mount_lock);
+		mp = lookup_mountpoint(dentry);
+		read_sequnlock_excl(&mount_lock);
+		if (mp)
+			goto done;
+	}
+
+	if (!new)
+		new = kmalloc(sizeof(struct mountpoint), GFP_KERNEL);
+	if (!new)
 		return ERR_PTR(-ENOMEM);
 
+
+	/* Exactly one processes may set d_mounted */
 	ret = d_set_mounted(dentry);
-	if (ret) {
-		kfree(mp);
-		return ERR_PTR(ret);
-	}
 
-	mp->m_dentry = dentry;
-	mp->m_count = 1;
-	hlist_add_head(&mp->m_hash, chain);
-	INIT_HLIST_HEAD(&mp->m_list);
+	/* Someone else set d_mounted? */
+	if (ret == -EBUSY)
+		goto mountpoint;
+
+	/* The dentry is not available as a mountpoint? */
+	mp = ERR_PTR(ret);
+	if (ret)
+		goto done;
+
+	/* Add the new mountpoint to the hash table */
+	read_seqlock_excl(&mount_lock);
+	new->m_dentry = dentry;
+	new->m_count = 1;
+	hlist_add_head(&new->m_hash, mp_hash(dentry));
+	INIT_HLIST_HEAD(&new->m_list);
+	read_sequnlock_excl(&mount_lock);
+
+	mp = new;
+	new = NULL;
+done:
+	kfree(new);
 	return mp;
 }
 
@@ -858,6 +861,13 @@ void mnt_set_mountpoint(struct mount *mn
 	hlist_add_head(&child_mnt->mnt_mp_list, &mp->m_list);
 }
 
+static void __attach_mnt(struct mount *mnt, struct mount *parent)
+{
+	hlist_add_head_rcu(&mnt->mnt_hash,
+			   m_hash(&parent->mnt, mnt->mnt_mountpoint));
+	list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
+}
+
 /*
  * vfsmount lock must be held for write
  */
@@ -866,28 +876,45 @@ static void attach_mnt(struct mount *mnt
 			struct mountpoint *mp)
 {
 	mnt_set_mountpoint(parent, mp, mnt);
-	hlist_add_head_rcu(&mnt->mnt_hash, m_hash(&parent->mnt, mp->m_dentry));
-	list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
+	__attach_mnt(mnt, parent);
 }
 
-static void attach_shadowed(struct mount *mnt,
-			struct mount *parent,
-			struct mount *shadows)
+void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp, struct mount *mnt)
 {
-	if (shadows) {
-		hlist_add_behind_rcu(&mnt->mnt_hash, &shadows->mnt_hash);
-		list_add(&mnt->mnt_child, &shadows->mnt_child);
-	} else {
-		hlist_add_head_rcu(&mnt->mnt_hash,
-				m_hash(&parent->mnt, mnt->mnt_mountpoint));
-		list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
-	}
+	struct mountpoint *old_mp = mnt->mnt_mp;
+	struct dentry *old_mountpoint = mnt->mnt_mountpoint;
+	struct mount *old_parent = mnt->mnt_parent;
+
+	list_del_init(&mnt->mnt_child);
+	hlist_del_init(&mnt->mnt_mp_list);
+	hlist_del_init_rcu(&mnt->mnt_hash);
+
+	attach_mnt(mnt, parent, mp);
+
+	put_mountpoint(old_mp);
+
+	/*
+	 * Safely avoid even the suggestion this code might sleep or
+	 * lock the mount hash by taking advantage of the knowledge that
+	 * mnt_change_mountpoint will not release the final reference
+	 * to a mountpoint.
+	 *
+	 * During mounting, the mount passed in as the parent mount will
+	 * continue to use the old mountpoint and during unmounting, the
+	 * old mountpoint will continue to exist until namespace_unlock,
+	 * which happens well after mnt_change_mountpoint.
+	 */
+	spin_lock(&old_mountpoint->d_lock);
+	old_mountpoint->d_lockref.count--;
+	spin_unlock(&old_mountpoint->d_lock);
+
+	mnt_add_count(old_parent, -1);
 }
 
 /*
  * vfsmount lock must be held for write
  */
-static void commit_tree(struct mount *mnt, struct mount *shadows)
+static void commit_tree(struct mount *mnt)
 {
 	struct mount *parent = mnt->mnt_parent;
 	struct mount *m;
@@ -905,7 +932,7 @@ static void commit_tree(struct mount *mn
 	n->mounts += n->pending_mounts;
 	n->pending_mounts = 0;
 
-	attach_shadowed(mnt, parent, shadows);
+	__attach_mnt(mnt, parent);
 	touch_mnt_namespace(n);
 }
 
@@ -969,6 +996,21 @@ vfs_kern_mount(struct file_system_type *
 }
 EXPORT_SYMBOL_GPL(vfs_kern_mount);
 
+struct vfsmount *
+vfs_submount(const struct dentry *mountpoint, struct file_system_type *type,
+	     const char *name, void *data)
+{
+	/* Until it is worked out how to pass the user namespace
+	 * through from the parent mount to the submount don't support
+	 * unprivileged mounts with submounts.
+	 */
+	if (mountpoint->d_sb->s_user_ns != &init_user_ns)
+		return ERR_PTR(-EPERM);
+
+	return vfs_kern_mount(type, MS_SUBMOUNT, name, data);
+}
+EXPORT_SYMBOL_GPL(vfs_submount);
+
 static struct mount *clone_mnt(struct mount *old, struct dentry *root,
 					int flag)
 {
@@ -1568,11 +1610,11 @@ void __detach_mounts(struct dentry *dent
 	struct mount *mnt;
 
 	namespace_lock();
+	lock_mount_hash();
 	mp = lookup_mountpoint(dentry);
 	if (IS_ERR_OR_NULL(mp))
 		goto out_unlock;
 
-	lock_mount_hash();
 	event++;
 	while (!hlist_empty(&mp->m_list)) {
 		mnt = hlist_entry(mp->m_list.first, struct mount, mnt_mp_list);
@@ -1582,9 +1624,9 @@ void __detach_mounts(struct dentry *dent
 		}
 		else umount_tree(mnt, UMOUNT_CONNECTED);
 	}
-	unlock_mount_hash();
 	put_mountpoint(mp);
 out_unlock:
+	unlock_mount_hash();
 	namespace_unlock();
 }
 
@@ -1713,7 +1755,6 @@ struct mount *copy_tree(struct mount *mn
 			continue;
 
 		for (s = r; s; s = next_mnt(s, r)) {
-			struct mount *t = NULL;
 			if (!(flag & CL_COPY_UNBINDABLE) &&
 			    IS_MNT_UNBINDABLE(s)) {
 				s = skip_mnt_tree(s);
@@ -1735,14 +1776,7 @@ struct mount *copy_tree(struct mount *mn
 				goto out;
 			lock_mount_hash();
 			list_add_tail(&q->mnt_list, &res->mnt_list);
-			mnt_set_mountpoint(parent, p->mnt_mp, q);
-			if (!list_empty(&parent->mnt_mounts)) {
-				t = list_last_entry(&parent->mnt_mounts,
-					struct mount, mnt_child);
-				if (t->mnt_mp != p->mnt_mp)
-					t = NULL;
-			}
-			attach_shadowed(q, parent, t);
+			attach_mnt(q, parent, p->mnt_mp);
 			unlock_mount_hash();
 		}
 	}
@@ -1943,10 +1977,18 @@ static int attach_recursive_mnt(struct m
 {
 	HLIST_HEAD(tree_list);
 	struct mnt_namespace *ns = dest_mnt->mnt_ns;
+	struct mountpoint *smp;
 	struct mount *child, *p;
 	struct hlist_node *n;
 	int err;
 
+	/* Preallocate a mountpoint in case the new mounts need
+	 * to be tucked under other mounts.
+	 */
+	smp = get_mountpoint(source_mnt->mnt.mnt_root);
+	if (IS_ERR(smp))
+		return PTR_ERR(smp);
+
 	/* Is there space to add these mounts to the mount namespace? */
 	if (!parent_path) {
 		err = count_mounts(ns, source_mnt);
@@ -1973,16 +2015,19 @@ static int attach_recursive_mnt(struct m
 		touch_mnt_namespace(source_mnt->mnt_ns);
 	} else {
 		mnt_set_mountpoint(dest_mnt, dest_mp, source_mnt);
-		commit_tree(source_mnt, NULL);
+		commit_tree(source_mnt);
 	}
 
 	hlist_for_each_entry_safe(child, n, &tree_list, mnt_hash) {
 		struct mount *q;
 		hlist_del_init(&child->mnt_hash);
-		q = __lookup_mnt_last(&child->mnt_parent->mnt,
-				      child->mnt_mountpoint);
-		commit_tree(child, q);
+		q = __lookup_mnt(&child->mnt_parent->mnt,
+				 child->mnt_mountpoint);
+		if (q)
+			mnt_change_mountpoint(child, smp, q);
+		commit_tree(child);
 	}
+	put_mountpoint(smp);
 	unlock_mount_hash();
 
 	return 0;
@@ -1997,6 +2042,11 @@ static int attach_recursive_mnt(struct m
 	cleanup_group_ids(source_mnt, NULL);
  out:
 	ns->pending_mounts = 0;
+
+	read_seqlock_excl(&mount_lock);
+	put_mountpoint(smp);
+	read_sequnlock_excl(&mount_lock);
+
 	return err;
 }
 
@@ -2013,9 +2063,7 @@ retry:
 	namespace_lock();
 	mnt = lookup_mnt(path);
 	if (likely(!mnt)) {
-		struct mountpoint *mp = lookup_mountpoint(dentry);
-		if (!mp)
-			mp = new_mountpoint(dentry);
+		struct mountpoint *mp = get_mountpoint(dentry);
 		if (IS_ERR(mp)) {
 			namespace_unlock();
 			inode_unlock(dentry->d_inode);
@@ -2034,7 +2082,11 @@ retry:
 static void unlock_mount(struct mountpoint *where)
 {
 	struct dentry *dentry = where->m_dentry;
+
+	read_seqlock_excl(&mount_lock);
 	put_mountpoint(where);
+	read_sequnlock_excl(&mount_lock);
+
 	namespace_unlock();
 	inode_unlock(dentry->d_inode);
 }
@@ -2743,7 +2795,7 @@ long do_mount(const char *dev_name, cons
 
 	flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN |
 		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
-		   MS_STRICTATIME | MS_NOREMOTELOCK);
+		   MS_STRICTATIME | MS_NOREMOTELOCK | MS_SUBMOUNT);
 
 	if (flags & MS_REMOUNT)
 		retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
@@ -3110,9 +3162,9 @@ SYSCALL_DEFINE2(pivot_root, const char _
 	touch_mnt_namespace(current->nsproxy->mnt_ns);
 	/* A moved mount should not expire automatically */
 	list_del_init(&new_mnt->mnt_expire);
+	put_mountpoint(root_mp);
 	unlock_mount_hash();
 	chroot_fs_refs(&root, &new);
-	put_mountpoint(root_mp);
 	error = 0;
 out4:
 	unlock_mount(old_mp);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/callback.c linux-libre-4.9.52-gnu/fs/nfs/callback.c
--- linux-libre-4.9-gnu/fs/nfs/callback.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/callback.c	2017-09-27 08:40:05.000000000 -0400
@@ -75,7 +75,10 @@ nfs4_callback_svc(void *vrqstp)
 
 	set_freezable();
 
-	while (!kthread_should_stop()) {
+	while (!kthread_freezable_should_stop(NULL)) {
+
+		if (signal_pending(current))
+			flush_signals(current);
 		/*
 		 * Listen for a request on the socket
 		 */
@@ -84,6 +87,8 @@ nfs4_callback_svc(void *vrqstp)
 			continue;
 		svc_process(rqstp);
 	}
+	svc_exit_thread(rqstp);
+	module_put_and_exit(0);
 	return 0;
 }
 
@@ -102,9 +107,10 @@ nfs41_callback_svc(void *vrqstp)
 
 	set_freezable();
 
-	while (!kthread_should_stop()) {
-		if (try_to_freeze())
-			continue;
+	while (!kthread_freezable_should_stop(NULL)) {
+
+		if (signal_pending(current))
+			flush_signals(current);
 
 		prepare_to_wait(&serv->sv_cb_waitq, &wq, TASK_INTERRUPTIBLE);
 		spin_lock_bh(&serv->sv_cb_lock);
@@ -120,11 +126,13 @@ nfs41_callback_svc(void *vrqstp)
 				error);
 		} else {
 			spin_unlock_bh(&serv->sv_cb_lock);
-			schedule();
+			if (!kthread_should_stop())
+				schedule();
 			finish_wait(&serv->sv_cb_waitq, &wq);
 		}
-		flush_signals(current);
 	}
+	svc_exit_thread(rqstp);
+	module_put_and_exit(0);
 	return 0;
 }
 
@@ -220,14 +228,14 @@ err_bind:
 static struct svc_serv_ops nfs40_cb_sv_ops = {
 	.svo_function		= nfs4_callback_svc,
 	.svo_enqueue_xprt	= svc_xprt_do_enqueue,
-	.svo_setup		= svc_set_num_threads,
+	.svo_setup		= svc_set_num_threads_sync,
 	.svo_module		= THIS_MODULE,
 };
 #if defined(CONFIG_NFS_V4_1)
 static struct svc_serv_ops nfs41_cb_sv_ops = {
 	.svo_function		= nfs41_callback_svc,
 	.svo_enqueue_xprt	= svc_xprt_do_enqueue,
-	.svo_setup		= svc_set_num_threads,
+	.svo_setup		= svc_set_num_threads_sync,
 	.svo_module		= THIS_MODULE,
 };
 
@@ -279,7 +287,7 @@ static struct svc_serv *nfs_callback_cre
 		printk(KERN_WARNING "nfs_callback_create_svc: no kthread, %d users??\n",
 			cb_info->users);
 
-	serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, sv_ops);
+	serv = svc_create_pooled(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, sv_ops);
 	if (!serv) {
 		printk(KERN_ERR "nfs_callback_create_svc: create service failed\n");
 		return ERR_PTR(-ENOMEM);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/dir.c linux-libre-4.9.52-gnu/fs/nfs/dir.c
--- linux-libre-4.9-gnu/fs/nfs/dir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/dir.c	2017-09-27 08:40:05.000000000 -0400
@@ -477,7 +477,7 @@ void nfs_force_use_readdirplus(struct in
 {
 	if (!list_empty(&NFS_I(dir)->open_files)) {
 		nfs_advise_use_readdirplus(dir);
-		nfs_zap_mapping(dir, dir->i_mapping);
+		invalidate_mapping_pages(dir->i_mapping, 0, -1);
 	}
 }
 
@@ -886,17 +886,6 @@ int uncached_readdir(nfs_readdir_descrip
 	goto out;
 }
 
-static bool nfs_dir_mapping_need_revalidate(struct inode *dir)
-{
-	struct nfs_inode *nfsi = NFS_I(dir);
-
-	if (nfs_attribute_cache_expired(dir))
-		return true;
-	if (nfsi->cache_validity & NFS_INO_INVALID_DATA)
-		return true;
-	return false;
-}
-
 /* The file offset position represents the dirent entry number.  A
    last cookie cache takes care of the common case of reading the
    whole directory.
@@ -928,7 +917,7 @@ static int nfs_readdir(struct file *file
 	desc->decode = NFS_PROTO(inode)->decode_dirent;
 	desc->plus = nfs_use_readdirplus(inode, ctx) ? 1 : 0;
 
-	if (ctx->pos == 0 || nfs_dir_mapping_need_revalidate(inode))
+	if (ctx->pos == 0 || nfs_attribute_cache_expired(inode))
 		res = nfs_revalidate_mapping(inode, file->f_mapping);
 	if (res < 0)
 		goto out;
@@ -1178,11 +1167,13 @@ static int nfs_lookup_revalidate(struct
 	/* Force a full look up iff the parent directory has changed */
 	if (!nfs_is_exclusive_create(dir, flags) &&
 	    nfs_check_verifier(dir, dentry, flags & LOOKUP_RCU)) {
-
-		if (nfs_lookup_verify_inode(inode, flags)) {
+		error = nfs_lookup_verify_inode(inode, flags);
+		if (error) {
 			if (flags & LOOKUP_RCU)
 				return -ECHILD;
-			goto out_zap_parent;
+			if (error == -ESTALE)
+				goto out_zap_parent;
+			goto out_error;
 		}
 		goto out_valid;
 	}
@@ -1206,8 +1197,10 @@ static int nfs_lookup_revalidate(struct
 	trace_nfs_lookup_revalidate_enter(dir, dentry, flags);
 	error = NFS_PROTO(dir)->lookup(dir, &dentry->d_name, fhandle, fattr, label);
 	trace_nfs_lookup_revalidate_exit(dir, dentry, flags, error);
-	if (error)
+	if (error == -ESTALE || error == -ENOENT)
 		goto out_bad;
+	if (error)
+		goto out_error;
 	if (nfs_compare_fh(NFS_FH(inode), fhandle))
 		goto out_bad;
 	if ((error = nfs_refresh_inode(inode, fattr)) != 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/file.c linux-libre-4.9.52-gnu/fs/nfs/file.c
--- linux-libre-4.9-gnu/fs/nfs/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -374,7 +374,7 @@ static int nfs_write_end(struct file *fi
 	 */
 	if (!PageUptodate(page)) {
 		unsigned pglen = nfs_page_length(page);
-		unsigned end = offset + len;
+		unsigned end = offset + copied;
 
 		if (pglen == 0) {
 			zero_user_segments(page, 0, offset,
@@ -636,11 +636,11 @@ ssize_t nfs_file_write(struct kiocb *ioc
 	if (result <= 0)
 		goto out;
 
-	result = generic_write_sync(iocb, result);
-	if (result < 0)
-		goto out;
 	written = result;
 	iocb->ki_pos += written;
+	result = generic_write_sync(iocb, written);
+	if (result < 0)
+		goto out;
 
 	/* Return error values */
 	if (nfs_need_check_write(file, inode)) {
@@ -757,7 +757,7 @@ do_setlk(struct file *filp, int cmd, str
 	 */
 	nfs_sync_mapping(filp->f_mapping);
 	if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ))
-		nfs_zap_mapping(inode, filp->f_mapping);
+		nfs_zap_caches(inode);
 out:
 	return status;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/filelayout/filelayoutdev.c linux-libre-4.9.52-gnu/fs/nfs/filelayout/filelayoutdev.c
--- linux-libre-4.9-gnu/fs/nfs/filelayout/filelayoutdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/filelayout/filelayoutdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -283,7 +283,8 @@ nfs4_fl_prepare_ds(struct pnfs_layout_se
 			     s->nfs_client->cl_rpcclient->cl_auth->au_flavor);
 
 out_test_devid:
-	if (filelayout_test_devid_unavailable(devid))
+	if (ret->ds_clp == NULL ||
+	    filelayout_test_devid_unavailable(devid))
 		ret = NULL;
 out:
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/flexfilelayout/flexfilelayout.c linux-libre-4.9.52-gnu/fs/nfs/flexfilelayout/flexfilelayout.c
--- linux-libre-4.9-gnu/fs/nfs/flexfilelayout/flexfilelayout.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/flexfilelayout/flexfilelayout.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,6 +28,9 @@
 
 static struct group_info	*ff_zero_group;
 
+static void ff_layout_read_record_layoutstats_done(struct rpc_task *task,
+		struct nfs_pgio_header *hdr);
+
 static struct pnfs_layout_hdr *
 ff_layout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
 {
@@ -1070,9 +1073,6 @@ static int ff_layout_async_handle_error_
 	struct nfs_client *mds_client = mds_server->nfs_client;
 	struct nfs4_slot_table *tbl = &clp->cl_session->fc_slot_table;
 
-	if (task->tk_status >= 0)
-		return 0;
-
 	switch (task->tk_status) {
 	/* MDS state errors */
 	case -NFS4ERR_DELEG_REVOKED:
@@ -1173,9 +1173,6 @@ static int ff_layout_async_handle_error_
 {
 	struct nfs4_deviceid_node *devid = FF_LAYOUT_DEVID_NODE(lseg, idx);
 
-	if (task->tk_status >= 0)
-		return 0;
-
 	switch (task->tk_status) {
 	/* File access problems. Don't mark the device as unavailable */
 	case -EACCES:
@@ -1210,6 +1207,13 @@ static int ff_layout_async_handle_error(
 {
 	int vers = clp->cl_nfs_mod->rpc_vers->number;
 
+	if (task->tk_status >= 0)
+		return 0;
+
+	/* Handle the case of an invalid layout segment */
+	if (!pnfs_is_valid_lseg(lseg))
+		return -NFS4ERR_RESET_TO_PNFS;
+
 	switch (vers) {
 	case 3:
 		return ff_layout_async_handle_error_v3(task, lseg, idx);
@@ -1293,6 +1297,7 @@ static int ff_layout_read_done_cb(struct
 					hdr->pgio_mirror_idx + 1,
 					&hdr->pgio_mirror_idx))
 			goto out_eagain;
+		ff_layout_read_record_layoutstats_done(task, hdr);
 		pnfs_read_resend_pnfs(hdr);
 		return task->tk_status;
 	case -NFS4ERR_RESET_TO_MDS:
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c linux-libre-4.9.52-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c
--- linux-libre-4.9-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/flexfilelayout/flexfilelayoutdev.c	2017-09-27 08:40:05.000000000 -0400
@@ -30,6 +30,7 @@ void nfs4_ff_layout_free_deviceid(struct
 {
 	nfs4_print_deviceid(&mirror_ds->id_node.deviceid);
 	nfs4_pnfs_ds_put(mirror_ds->ds);
+	kfree(mirror_ds->ds_versions);
 	kfree_rcu(mirror_ds, id_node.rcu);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/inode.c linux-libre-4.9.52-gnu/fs/nfs/inode.c
--- linux-libre-4.9-gnu/fs/nfs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -1278,9 +1278,9 @@ static int nfs_check_inode_attributes(st
 		return 0;
 	/* Has the inode gone and changed behind our back? */
 	if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid)
-		return -EIO;
+		return -ESTALE;
 	if ((fattr->valid & NFS_ATTR_FATTR_TYPE) && (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
-		return -EIO;
+		return -ESTALE;
 
 	if (!nfs_file_has_buffered_writers(nfsi)) {
 		/* Verify a few of the more important attributes */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/internal.h linux-libre-4.9.52-gnu/fs/nfs/internal.h
--- linux-libre-4.9-gnu/fs/nfs/internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -248,7 +248,6 @@ int nfs_iocounter_wait(struct nfs_lock_c
 extern const struct nfs_pageio_ops nfs_pgio_rw_ops;
 struct nfs_pgio_header *nfs_pgio_header_alloc(const struct nfs_rw_ops *);
 void nfs_pgio_header_free(struct nfs_pgio_header *);
-void nfs_pgio_data_destroy(struct nfs_pgio_header *);
 int nfs_generic_pgio(struct nfs_pageio_descriptor *, struct nfs_pgio_header *);
 int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr,
 		      struct rpc_cred *cred, const struct nfs_rpc_ops *rpc_ops,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/Kconfig linux-libre-4.9.52-gnu/fs/nfs/Kconfig
--- linux-libre-4.9-gnu/fs/nfs/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -121,6 +121,7 @@ config PNFS_FILE_LAYOUT
 config PNFS_BLOCK
 	tristate
 	depends on NFS_V4_1 && BLK_DEV_DM
+	depends on 64BIT || LBDAF
 	default NFS_V4
 
 config PNFS_OBJLAYOUT
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/namespace.c linux-libre-4.9.52-gnu/fs/nfs/namespace.c
--- linux-libre-4.9-gnu/fs/nfs/namespace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/namespace.c	2017-09-27 08:40:05.000000000 -0400
@@ -226,7 +226,7 @@ static struct vfsmount *nfs_do_clone_mou
 					   const char *devname,
 					   struct nfs_clone_mount *mountdata)
 {
-	return vfs_kern_mount(&nfs_xdev_fs_type, 0, devname, mountdata);
+	return vfs_submount(mountdata->dentry, &nfs_xdev_fs_type, devname, mountdata);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/nfs42proc.c linux-libre-4.9.52-gnu/fs/nfs/nfs42proc.c
--- linux-libre-4.9-gnu/fs/nfs/nfs42proc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/nfs42proc.c	2017-09-27 08:40:05.000000000 -0400
@@ -128,30 +128,26 @@ out_unlock:
 	return err;
 }
 
-static ssize_t _nfs42_proc_copy(struct file *src, loff_t pos_src,
+static ssize_t _nfs42_proc_copy(struct file *src,
 				struct nfs_lock_context *src_lock,
-				struct file *dst, loff_t pos_dst,
+				struct file *dst,
 				struct nfs_lock_context *dst_lock,
-				size_t count)
+				struct nfs42_copy_args *args,
+				struct nfs42_copy_res *res)
 {
-	struct nfs42_copy_args args = {
-		.src_fh		= NFS_FH(file_inode(src)),
-		.src_pos	= pos_src,
-		.dst_fh		= NFS_FH(file_inode(dst)),
-		.dst_pos	= pos_dst,
-		.count		= count,
-	};
-	struct nfs42_copy_res res;
 	struct rpc_message msg = {
 		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COPY],
-		.rpc_argp = &args,
-		.rpc_resp = &res,
+		.rpc_argp = args,
+		.rpc_resp = res,
 	};
 	struct inode *dst_inode = file_inode(dst);
 	struct nfs_server *server = NFS_SERVER(dst_inode);
+	loff_t pos_src = args->src_pos;
+	loff_t pos_dst = args->dst_pos;
+	size_t count = args->count;
 	int status;
 
-	status = nfs4_set_rw_stateid(&args.src_stateid, src_lock->open_context,
+	status = nfs4_set_rw_stateid(&args->src_stateid, src_lock->open_context,
 				     src_lock, FMODE_READ);
 	if (status)
 		return status;
@@ -161,7 +157,7 @@ static ssize_t _nfs42_proc_copy(struct f
 	if (status)
 		return status;
 
-	status = nfs4_set_rw_stateid(&args.dst_stateid, dst_lock->open_context,
+	status = nfs4_set_rw_stateid(&args->dst_stateid, dst_lock->open_context,
 				     dst_lock, FMODE_WRITE);
 	if (status)
 		return status;
@@ -171,22 +167,22 @@ static ssize_t _nfs42_proc_copy(struct f
 		return status;
 
 	status = nfs4_call_sync(server->client, server, &msg,
-				&args.seq_args, &res.seq_res, 0);
+				&args->seq_args, &res->seq_res, 0);
 	if (status == -ENOTSUPP)
 		server->caps &= ~NFS_CAP_COPY;
 	if (status)
 		return status;
 
-	if (res.write_res.verifier.committed != NFS_FILE_SYNC) {
-		status = nfs_commit_file(dst, &res.write_res.verifier.verifier);
+	if (res->write_res.verifier.committed != NFS_FILE_SYNC) {
+		status = nfs_commit_file(dst, &res->write_res.verifier.verifier);
 		if (status)
 			return status;
 	}
 
 	truncate_pagecache_range(dst_inode, pos_dst,
-				 pos_dst + res.write_res.count);
+				 pos_dst + res->write_res.count);
 
-	return res.write_res.count;
+	return res->write_res.count;
 }
 
 ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src,
@@ -196,8 +192,22 @@ ssize_t nfs42_proc_copy(struct file *src
 	struct nfs_server *server = NFS_SERVER(file_inode(dst));
 	struct nfs_lock_context *src_lock;
 	struct nfs_lock_context *dst_lock;
-	struct nfs4_exception src_exception = { };
-	struct nfs4_exception dst_exception = { };
+	struct nfs42_copy_args args = {
+		.src_fh		= NFS_FH(file_inode(src)),
+		.src_pos	= pos_src,
+		.dst_fh		= NFS_FH(file_inode(dst)),
+		.dst_pos	= pos_dst,
+		.count		= count,
+	};
+	struct nfs42_copy_res res;
+	struct nfs4_exception src_exception = {
+		.inode		= file_inode(src),
+		.stateid	= &args.src_stateid,
+	};
+	struct nfs4_exception dst_exception = {
+		.inode		= file_inode(dst),
+		.stateid	= &args.dst_stateid,
+	};
 	ssize_t err, err2;
 
 	if (!nfs_server_capable(file_inode(dst), NFS_CAP_COPY))
@@ -207,7 +217,6 @@ ssize_t nfs42_proc_copy(struct file *src
 	if (IS_ERR(src_lock))
 		return PTR_ERR(src_lock);
 
-	src_exception.inode = file_inode(src);
 	src_exception.state = src_lock->open_context->state;
 
 	dst_lock = nfs_get_lock_context(nfs_file_open_context(dst));
@@ -216,15 +225,17 @@ ssize_t nfs42_proc_copy(struct file *src
 		goto out_put_src_lock;
 	}
 
-	dst_exception.inode = file_inode(dst);
 	dst_exception.state = dst_lock->open_context->state;
 
 	do {
 		inode_lock(file_inode(dst));
-		err = _nfs42_proc_copy(src, pos_src, src_lock,
-				       dst, pos_dst, dst_lock, count);
+		err = _nfs42_proc_copy(src, src_lock,
+				dst, dst_lock,
+				&args, &res);
 		inode_unlock(file_inode(dst));
 
+		if (err >= 0)
+			break;
 		if (err == -ENOTSUPP) {
 			err = -EOPNOTSUPP;
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/nfs4namespace.c linux-libre-4.9.52-gnu/fs/nfs/nfs4namespace.c
--- linux-libre-4.9-gnu/fs/nfs/nfs4namespace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/nfs4namespace.c	2017-09-27 08:40:05.000000000 -0400
@@ -279,7 +279,7 @@ static struct vfsmount *try_location(str
 				mountdata->hostname,
 				mountdata->mnt_path);
 
-		mnt = vfs_kern_mount(&nfs4_referral_fs_type, 0, page, mountdata);
+		mnt = vfs_submount(mountdata->dentry, &nfs4_referral_fs_type, page, mountdata);
 		if (!IS_ERR(mnt))
 			break;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/nfs4proc.c linux-libre-4.9.52-gnu/fs/nfs/nfs4proc.c
--- linux-libre-4.9-gnu/fs/nfs/nfs4proc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/nfs4proc.c	2017-09-27 08:40:05.000000000 -0400
@@ -2343,8 +2343,6 @@ static int nfs4_opendata_access(struct r
 	if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
 		return 0;
 
-	/* even though OPEN succeeded, access is denied. Close the file */
-	nfs4_close_state(state, fmode);
 	return -EACCES;
 }
 
@@ -2385,8 +2383,10 @@ static int _nfs4_proc_open(struct nfs4_o
 		if (status != 0)
 			return status;
 	}
-	if (!(o_res->f_attr->valid & NFS_ATTR_FATTR))
+	if (!(o_res->f_attr->valid & NFS_ATTR_FATTR)) {
+		nfs4_sequence_free_slot(&o_res->seq_res);
 		nfs4_proc_getattr(server, &o_res->fh, o_res->f_attr, o_res->f_label);
+	}
 	return 0;
 }
 
@@ -2532,17 +2532,14 @@ static void nfs41_check_delegation_state
 	}
 
 	nfs4_stateid_copy(&stateid, &delegation->stateid);
-	if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) {
+	if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) ||
+		!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED,
+			&delegation->flags)) {
 		rcu_read_unlock();
 		nfs_finish_clear_delegation_stateid(state, &stateid);
 		return;
 	}
 
-	if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags)) {
-		rcu_read_unlock();
-		return;
-	}
-
 	cred = get_rpccred(delegation->cred);
 	rcu_read_unlock();
 	status = nfs41_test_and_free_expired_stateid(server, &stateid, cred);
@@ -2678,7 +2675,8 @@ static inline void nfs4_exclusive_attrse
 		sattr->ia_valid |= ATTR_MTIME;
 
 	/* Except MODE, it seems harmless of setting twice. */
-	if ((attrset[1] & FATTR4_WORD1_MODE))
+	if (opendata->o_arg.createmode != NFS4_CREATE_EXCLUSIVE &&
+		attrset[1] & FATTR4_WORD1_MODE)
 		sattr->ia_valid &= ~ATTR_MODE;
 
 	if (attrset[2] & FATTR4_WORD2_SECURITY_LABEL)
@@ -2707,6 +2705,7 @@ static int _nfs4_open_and_get_state(stru
 	ret = PTR_ERR(state);
 	if (IS_ERR(state))
 		goto out;
+	ctx->state = state;
 	if (server->caps & NFS_CAP_POSIX_LOCK)
 		set_bit(NFS_STATE_POSIX_LOCKS, &state->flags);
 	if (opendata->o_res.rflags & NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK)
@@ -2732,7 +2731,6 @@ static int _nfs4_open_and_get_state(stru
 	if (ret != 0)
 		goto out;
 
-	ctx->state = state;
 	if (d_inode(dentry) == state->inode) {
 		nfs_inode_attach_open_context(ctx);
 		if (read_seqcount_retry(&sp->so_reclaim_seqcount, seq))
@@ -4989,7 +4987,7 @@ out:
  */
 static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
 {
-	struct page *pages[NFS4ACL_MAXPAGES] = {NULL, };
+	struct page *pages[NFS4ACL_MAXPAGES + 1] = {NULL, };
 	struct nfs_getaclargs args = {
 		.fh = NFS_FH(inode),
 		.acl_pages = pages,
@@ -5003,13 +5001,9 @@ static ssize_t __nfs4_get_acl_uncached(s
 		.rpc_argp = &args,
 		.rpc_resp = &res,
 	};
-	unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE);
+	unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE) + 1;
 	int ret = -ENOMEM, i;
 
-	/* As long as we're doing a round trip to the server anyway,
-	 * let's be prepared for a page of acl data. */
-	if (npages == 0)
-		npages = 1;
 	if (npages > ARRAY_SIZE(pages))
 		return -ERANGE;
 
@@ -6425,7 +6419,7 @@ nfs4_retry_setlk(struct nfs4_state *stat
 		set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_irqrestore(&q->lock, flags);
 
-		freezable_schedule_timeout_interruptible(NFS4_LOCK_MAXTIMEOUT);
+		freezable_schedule_timeout(NFS4_LOCK_MAXTIMEOUT);
 	}
 
 	finish_wait(q, &wait);
@@ -7416,7 +7410,7 @@ static void nfs4_exchange_id_done(struct
 			cdata->res.server_scope = NULL;
 		}
 		/* Save the EXCHANGE_ID verifier session trunk tests */
-		memcpy(clp->cl_confirm.data, cdata->args.verifier->data,
+		memcpy(clp->cl_confirm.data, cdata->args.verifier.data,
 		       sizeof(clp->cl_confirm.data));
 	}
 out:
@@ -7429,11 +7423,11 @@ static void nfs4_exchange_id_release(voi
 	struct nfs41_exchange_id_data *cdata =
 					(struct nfs41_exchange_id_data *)data;
 
-	nfs_put_client(cdata->args.client);
 	if (cdata->xprt) {
 		xprt_put(cdata->xprt);
 		rpc_clnt_xprt_switch_put(cdata->args.client->cl_rpcclient);
 	}
+	nfs_put_client(cdata->args.client);
 	kfree(cdata->res.impl_id);
 	kfree(cdata->res.server_scope);
 	kfree(cdata->res.server_owner);
@@ -7453,7 +7447,6 @@ static const struct rpc_call_ops nfs4_ex
 static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 			u32 sp4_how, struct rpc_xprt *xprt)
 {
-	nfs4_verifier verifier;
 	struct rpc_message msg = {
 		.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_EXCHANGE_ID],
 		.rpc_cred = cred,
@@ -7476,8 +7469,7 @@ static int _nfs4_proc_exchange_id(struct
 	if (!calldata)
 		goto out;
 
-	if (!xprt)
-		nfs4_init_boot_verifier(clp, &verifier);
+	nfs4_init_boot_verifier(clp, &calldata->args.verifier);
 
 	status = nfs4_init_uniform_client_string(clp);
 	if (status)
@@ -7522,9 +7514,8 @@ static int _nfs4_proc_exchange_id(struct
 		task_setup_data.rpc_xprt = xprt;
 		task_setup_data.flags =
 				RPC_TASK_SOFT|RPC_TASK_SOFTCONN|RPC_TASK_ASYNC;
-		calldata->args.verifier = &clp->cl_confirm;
-	} else {
-		calldata->args.verifier = &verifier;
+		memcpy(calldata->args.verifier.data, clp->cl_confirm.data,
+				sizeof(calldata->args.verifier.data));
 	}
 	calldata->args.client = clp;
 #ifdef CONFIG_NFS_V4_1_MIGRATION
@@ -7540,10 +7531,8 @@ static int _nfs4_proc_exchange_id(struct
 	task_setup_data.callback_data = calldata;
 
 	task = rpc_run_task(&task_setup_data);
-	if (IS_ERR(task)) {
-	status = PTR_ERR(task);
-		goto out_impl_id;
-	}
+	if (IS_ERR(task))
+		return PTR_ERR(task);
 
 	if (!xprt) {
 		status = rpc_wait_for_completion_task(task);
@@ -7571,6 +7560,7 @@ out_server_owner:
 	kfree(calldata->res.server_owner);
 out_calldata:
 	kfree(calldata);
+	nfs_put_client(clp);
 	goto out;
 }
 
@@ -8371,6 +8361,7 @@ nfs4_layoutget_handle_exception(struct r
 		goto out;
 	}
 
+	nfs4_sequence_free_slot(&lgp->res.seq_res);
 	err = nfs4_handle_exception(server, nfs4err, exception);
 	if (!status) {
 		if (exception->retry)
@@ -8435,6 +8426,7 @@ static void nfs4_layoutget_release(void
 	size_t max_pages = max_response_pages(server);
 
 	dprintk("--> %s\n", __func__);
+	nfs4_sequence_free_slot(&lgp->res.seq_res);
 	nfs4_free_pages(lgp->args.layout.pages, max_pages);
 	pnfs_put_layout_hdr(NFS_I(inode)->layout);
 	put_nfs_open_context(lgp->args.ctx);
@@ -8509,7 +8501,6 @@ nfs4_proc_layoutget(struct nfs4_layoutge
 	/* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */
 	if (status == 0 && lgp->res.layoutp->len)
 		lseg = pnfs_layout_process(lgp);
-	nfs4_sequence_free_slot(&lgp->res.seq_res);
 	rpc_put_task(task);
 	dprintk("<-- %s status=%d\n", __func__, status);
 	if (status)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/nfs4state.c linux-libre-4.9.52-gnu/fs/nfs/nfs4state.c
--- linux-libre-4.9-gnu/fs/nfs/nfs4state.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/nfs4state.c	2017-09-27 08:40:05.000000000 -0400
@@ -1079,6 +1079,7 @@ static void nfs_increment_seqid(int stat
 		case -NFS4ERR_BADXDR:
 		case -NFS4ERR_RESOURCE:
 		case -NFS4ERR_NOFILEHANDLE:
+		case -NFS4ERR_MOVED:
 			/* Non-seqid mutating errors */
 			return;
 	};
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/nfs4xdr.c linux-libre-4.9.52-gnu/fs/nfs/nfs4xdr.c
--- linux-libre-4.9-gnu/fs/nfs/nfs4xdr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/nfs4xdr.c	2017-09-27 08:40:05.000000000 -0400
@@ -1761,7 +1761,7 @@ static void encode_exchange_id(struct xd
 	int len = 0;
 
 	encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr);
-	encode_nfs4_verifier(xdr, args->verifier);
+	encode_nfs4_verifier(xdr, &args->verifier);
 
 	encode_string(xdr, strlen(args->client->cl_owner_id),
 			args->client->cl_owner_id);
@@ -2492,7 +2492,7 @@ static void nfs4_xdr_enc_getacl(struct r
 	encode_compound_hdr(xdr, req, &hdr);
 	encode_sequence(xdr, &args->seq_args, &hdr);
 	encode_putfh(xdr, args->fh, &hdr);
-	replen = hdr.replen + op_decode_hdr_maxsz + 1;
+	replen = hdr.replen + op_decode_hdr_maxsz;
 	encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
 
 	xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/pagelist.c linux-libre-4.9.52-gnu/fs/nfs/pagelist.c
--- linux-libre-4.9-gnu/fs/nfs/pagelist.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/pagelist.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,13 +29,14 @@
 static struct kmem_cache *nfs_page_cachep;
 static const struct rpc_call_ops nfs_pgio_common_ops;
 
-static bool nfs_pgarray_set(struct nfs_page_array *p, unsigned int pagecount)
+static bool nfs_pgarray_set(struct nfs_page_array *p, unsigned int pagecount,
+					gfp_t gfp_flags)
 {
 	p->npages = pagecount;
 	if (pagecount <= ARRAY_SIZE(p->page_array))
 		p->pagevec = p->page_array;
 	else {
-		p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
+		p->pagevec = kcalloc(pagecount, sizeof(struct page *), gfp_flags);
 		if (!p->pagevec)
 			p->npages = 0;
 	}
@@ -496,16 +497,6 @@ struct nfs_pgio_header *nfs_pgio_header_
 }
 EXPORT_SYMBOL_GPL(nfs_pgio_header_alloc);
 
-/*
- * nfs_pgio_header_free - Free a read or write header
- * @hdr: The header to free
- */
-void nfs_pgio_header_free(struct nfs_pgio_header *hdr)
-{
-	hdr->rw_ops->rw_free_header(hdr);
-}
-EXPORT_SYMBOL_GPL(nfs_pgio_header_free);
-
 /**
  * nfs_pgio_data_destroy - make @hdr suitable for reuse
  *
@@ -514,14 +505,24 @@ EXPORT_SYMBOL_GPL(nfs_pgio_header_free);
  *
  * @hdr: A header that has had nfs_generic_pgio called
  */
-void nfs_pgio_data_destroy(struct nfs_pgio_header *hdr)
+static void nfs_pgio_data_destroy(struct nfs_pgio_header *hdr)
 {
 	if (hdr->args.context)
 		put_nfs_open_context(hdr->args.context);
 	if (hdr->page_array.pagevec != hdr->page_array.page_array)
 		kfree(hdr->page_array.pagevec);
 }
-EXPORT_SYMBOL_GPL(nfs_pgio_data_destroy);
+
+/*
+ * nfs_pgio_header_free - Free a read or write header
+ * @hdr: The header to free
+ */
+void nfs_pgio_header_free(struct nfs_pgio_header *hdr)
+{
+	nfs_pgio_data_destroy(hdr);
+	hdr->rw_ops->rw_free_header(hdr);
+}
+EXPORT_SYMBOL_GPL(nfs_pgio_header_free);
 
 /**
  * nfs_pgio_rpcsetup - Set up arguments for a pageio call
@@ -635,7 +636,6 @@ EXPORT_SYMBOL_GPL(nfs_initiate_pgio);
 static void nfs_pgio_error(struct nfs_pgio_header *hdr)
 {
 	set_bit(NFS_IOHDR_REDO, &hdr->flags);
-	nfs_pgio_data_destroy(hdr);
 	hdr->completion_ops->completion(hdr);
 }
 
@@ -646,7 +646,6 @@ static void nfs_pgio_error(struct nfs_pg
 static void nfs_pgio_release(void *calldata)
 {
 	struct nfs_pgio_header *hdr = calldata;
-	nfs_pgio_data_destroy(hdr);
 	hdr->completion_ops->completion(hdr);
 }
 
@@ -681,6 +680,7 @@ void nfs_pageio_init(struct nfs_pageio_d
 {
 	struct nfs_pgio_mirror *new;
 	int i;
+	gfp_t gfp_flags = GFP_KERNEL;
 
 	desc->pg_moreio = 0;
 	desc->pg_inode = inode;
@@ -700,8 +700,10 @@ void nfs_pageio_init(struct nfs_pageio_d
 	if (pg_ops->pg_get_mirror_count) {
 		/* until we have a request, we don't have an lseg and no
 		 * idea how many mirrors there will be */
+		if (desc->pg_rw_ops->rw_mode == FMODE_WRITE)
+			gfp_flags = GFP_NOIO;
 		new = kcalloc(NFS_PAGEIO_DESCRIPTOR_MIRROR_MAX,
-			      sizeof(struct nfs_pgio_mirror), GFP_KERNEL);
+			      sizeof(struct nfs_pgio_mirror), gfp_flags);
 		desc->pg_mirrors_dynamic = new;
 		desc->pg_mirrors = new;
 
@@ -755,9 +757,12 @@ int nfs_generic_pgio(struct nfs_pageio_d
 	struct list_head *head = &mirror->pg_list;
 	struct nfs_commit_info cinfo;
 	unsigned int pagecount, pageused;
+	gfp_t gfp_flags = GFP_KERNEL;
 
 	pagecount = nfs_page_array_len(mirror->pg_base, mirror->pg_count);
-	if (!nfs_pgarray_set(&hdr->page_array, pagecount)) {
+	if (desc->pg_rw_ops->rw_mode == FMODE_WRITE)
+		gfp_flags = GFP_NOIO;
+	if (!nfs_pgarray_set(&hdr->page_array, pagecount, gfp_flags)) {
 		nfs_pgio_error(hdr);
 		desc->pg_error = -ENOMEM;
 		return desc->pg_error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/pnfs.c linux-libre-4.9.52-gnu/fs/nfs/pnfs.c
--- linux-libre-4.9-gnu/fs/nfs/pnfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/pnfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -299,6 +299,14 @@ pnfs_put_layout_hdr(struct pnfs_layout_h
 	}
 }
 
+static void
+pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
+{
+	lo->plh_return_iomode = 0;
+	lo->plh_return_seq = 0;
+	clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
+}
+
 /*
  * Mark a pnfs_layout_hdr and all associated layout segments as invalid
  *
@@ -317,6 +325,7 @@ pnfs_mark_layout_stateid_invalid(struct
 	};
 
 	set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
+	pnfs_clear_layoutreturn_info(lo);
 	return pnfs_mark_matching_lsegs_invalid(lo, lseg_list, &range, 0);
 }
 
@@ -411,7 +420,9 @@ pnfs_layout_remove_lseg(struct pnfs_layo
 	list_del_init(&lseg->pls_list);
 	/* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */
 	atomic_dec(&lo->plh_refcount);
-	if (list_empty(&lo->plh_segs)) {
+	if (list_empty(&lo->plh_segs) &&
+	    !test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags) &&
+	    !test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) {
 		if (atomic_read(&lo->plh_outstanding) == 0)
 			set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
 		clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
@@ -816,14 +827,6 @@ pnfs_destroy_all_layouts(struct nfs_clie
 	pnfs_destroy_layouts_byclid(clp, false);
 }
 
-static void
-pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
-{
-	lo->plh_return_iomode = 0;
-	lo->plh_return_seq = 0;
-	clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
-}
-
 /* update lo->plh_stateid with new if is more recent */
 void
 pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new,
@@ -944,6 +947,7 @@ static void pnfs_clear_layoutcommit(stru
 void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo)
 {
 	clear_bit_unlock(NFS_LAYOUT_RETURN, &lo->plh_flags);
+	clear_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags);
 	smp_mb__after_atomic();
 	wake_up_bit(&lo->plh_flags, NFS_LAYOUT_RETURN);
 	rpc_wake_up(&NFS_SERVER(lo->plh_inode)->roc_rpcwaitq);
@@ -957,8 +961,9 @@ pnfs_prepare_layoutreturn(struct pnfs_la
 	/* Serialise LAYOUTGET/LAYOUTRETURN */
 	if (atomic_read(&lo->plh_outstanding) != 0)
 		return false;
-	if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
+	if (test_and_set_bit(NFS_LAYOUT_RETURN_LOCK, &lo->plh_flags))
 		return false;
+	set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags);
 	pnfs_get_layout_hdr(lo);
 	if (test_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags)) {
 		if (stateid != NULL) {
@@ -1252,13 +1257,11 @@ bool pnfs_wait_on_layoutreturn(struct in
 	 * i_lock */
         spin_lock(&ino->i_lock);
         lo = nfsi->layout;
-        if (lo && test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags))
+        if (lo && test_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) {
+                rpc_sleep_on(&NFS_SERVER(ino)->roc_rpcwaitq, task, NULL);
                 sleep = true;
+	}
         spin_unlock(&ino->i_lock);
-
-        if (sleep)
-                rpc_sleep_on(&NFS_SERVER(ino)->roc_rpcwaitq, task, NULL);
-
         return sleep;
 }
 
@@ -1950,6 +1953,8 @@ void pnfs_error_mark_layout_for_return(s
 
 	spin_lock(&inode->i_lock);
 	pnfs_set_plh_return_info(lo, range.iomode, 0);
+	/* Block LAYOUTGET */
+	set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags);
 	/*
 	 * mark all matching lsegs so that we are sure to have no live
 	 * segments at hand when sending layoutreturn. See pnfs_put_lseg()
@@ -2140,7 +2145,6 @@ pnfs_write_through_mds(struct nfs_pageio
 		nfs_pageio_reset_write_mds(desc);
 		mirror->pg_recoalesce = 1;
 	}
-	nfs_pgio_data_destroy(hdr);
 	hdr->release(hdr);
 }
 
@@ -2252,7 +2256,6 @@ pnfs_read_through_mds(struct nfs_pageio_
 		nfs_pageio_reset_read_mds(desc);
 		mirror->pg_recoalesce = 1;
 	}
-	nfs_pgio_data_destroy(hdr);
 	hdr->release(hdr);
 }
 
@@ -2286,6 +2289,10 @@ void pnfs_read_resend_pnfs(struct nfs_pg
 	struct nfs_pageio_descriptor pgio;
 
 	if (!test_and_set_bit(NFS_IOHDR_REDO, &hdr->flags)) {
+		/* Prevent deadlocks with layoutreturn! */
+		pnfs_put_lseg(hdr->lseg);
+		hdr->lseg = NULL;
+
 		nfs_pageio_init_read(&pgio, hdr->inode, false,
 					hdr->completion_ops);
 		hdr->task.tk_status = nfs_pageio_resend(&pgio, hdr);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/pnfs.h linux-libre-4.9.52-gnu/fs/nfs/pnfs.h
--- linux-libre-4.9-gnu/fs/nfs/pnfs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/pnfs.h	2017-09-27 08:40:05.000000000 -0400
@@ -96,6 +96,7 @@ enum {
 	NFS_LAYOUT_RW_FAILED,		/* get rw layout failed stop trying */
 	NFS_LAYOUT_BULK_RECALL,		/* bulk recall affecting layout */
 	NFS_LAYOUT_RETURN,		/* layoutreturn in progress */
+	NFS_LAYOUT_RETURN_LOCK,		/* Serialise layoutreturn */
 	NFS_LAYOUT_RETURN_REQUESTED,	/* Return this layout ASAP */
 	NFS_LAYOUT_INVALID_STID,	/* layout stateid id is invalid */
 	NFS_LAYOUT_FIRST_LAYOUTGET,	/* Serialize first layoutget */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/super.c linux-libre-4.9.52-gnu/fs/nfs/super.c
--- linux-libre-4.9-gnu/fs/nfs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -2904,7 +2904,7 @@ module_param(max_session_slots, ushort,
 MODULE_PARM_DESC(max_session_slots, "Maximum number of outstanding NFSv4.1 "
 		"requests the client will negotiate");
 module_param(max_session_cb_slots, ushort, 0644);
-MODULE_PARM_DESC(max_session_slots, "Maximum number of parallel NFSv4.1 "
+MODULE_PARM_DESC(max_session_cb_slots, "Maximum number of parallel NFSv4.1 "
 		"callbacks the client will process for a given server");
 module_param(send_implementation_id, ushort, 0644);
 MODULE_PARM_DESC(send_implementation_id,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfs/write.c linux-libre-4.9.52-gnu/fs/nfs/write.c
--- linux-libre-4.9-gnu/fs/nfs/write.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfs/write.c	2017-09-27 08:40:05.000000000 -0400
@@ -548,9 +548,9 @@ static void nfs_write_error_remove_page(
 {
 	nfs_unlock_request(req);
 	nfs_end_page_writeback(req);
-	nfs_release_request(req);
 	generic_error_remove_page(page_file_mapping(req->wb_page),
 				  req->wb_page);
+	nfs_release_request(req);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/blocklayout.c linux-libre-4.9.52-gnu/fs/nfsd/blocklayout.c
--- linux-libre-4.9-gnu/fs/nfsd/blocklayout.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/blocklayout.c	2017-09-27 08:40:05.000000000 -0400
@@ -23,7 +23,7 @@ nfsd4_block_proc_layoutget(struct inode
 {
 	struct nfsd4_layout_seg *seg = &args->lg_seg;
 	struct super_block *sb = inode->i_sb;
-	u32 block_size = (1 << inode->i_blkbits);
+	u32 block_size = i_blocksize(inode);
 	struct pnfs_block_extent *bex;
 	struct iomap iomap;
 	u32 device_generation = 0;
@@ -180,7 +180,7 @@ nfsd4_block_proc_layoutcommit(struct ino
 	int nr_iomaps;
 
 	nr_iomaps = nfsd4_block_decode_layoutupdate(lcp->lc_up_layout,
-			lcp->lc_up_len, &iomaps, 1 << inode->i_blkbits);
+			lcp->lc_up_len, &iomaps, i_blocksize(inode));
 	if (nr_iomaps < 0)
 		return nfserrno(nr_iomaps);
 
@@ -372,7 +372,7 @@ nfsd4_scsi_proc_layoutcommit(struct inod
 	int nr_iomaps;
 
 	nr_iomaps = nfsd4_scsi_decode_layoutupdate(lcp->lc_up_layout,
-			lcp->lc_up_len, &iomaps, 1 << inode->i_blkbits);
+			lcp->lc_up_len, &iomaps, i_blocksize(inode));
 	if (nr_iomaps < 0)
 		return nfserrno(nr_iomaps);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfs3xdr.c linux-libre-4.9.52-gnu/fs/nfsd/nfs3xdr.c
--- linux-libre-4.9-gnu/fs/nfsd/nfs3xdr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfs3xdr.c	2017-09-27 08:40:05.000000000 -0400
@@ -358,6 +358,8 @@ nfs3svc_decode_writeargs(struct svc_rqst
 {
 	unsigned int len, v, hdr, dlen;
 	u32 max_blocksize = svc_max_payload(rqstp);
+	struct kvec *head = rqstp->rq_arg.head;
+	struct kvec *tail = rqstp->rq_arg.tail;
 
 	p = decode_fh(p, &args->fh);
 	if (!p)
@@ -367,6 +369,8 @@ nfs3svc_decode_writeargs(struct svc_rqst
 	args->count = ntohl(*p++);
 	args->stable = ntohl(*p++);
 	len = args->len = ntohl(*p++);
+	if ((void *)p > head->iov_base + head->iov_len)
+		return 0;
 	/*
 	 * The count must equal the amount of data passed.
 	 */
@@ -377,9 +381,8 @@ nfs3svc_decode_writeargs(struct svc_rqst
 	 * Check to make sure that we got the right number of
 	 * bytes.
 	 */
-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
-		+ rqstp->rq_arg.tail[0].iov_len - hdr;
+	hdr = (void*)p - head->iov_base;
+	dlen = head->iov_len + rqstp->rq_arg.page_len + tail->iov_len - hdr;
 	/*
 	 * Round the length of the data which was specified up to
 	 * the next multiple of XDR units and then compare that
@@ -396,7 +399,7 @@ nfs3svc_decode_writeargs(struct svc_rqst
 		len = args->len = max_blocksize;
 	}
 	rqstp->rq_vec[0].iov_base = (void*)p;
-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
+	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
 	v = 0;
 	while (len > rqstp->rq_vec[v].iov_len) {
 		len -= rqstp->rq_vec[v].iov_len;
@@ -471,6 +474,8 @@ nfs3svc_decode_symlinkargs(struct svc_rq
 	/* first copy and check from the first page */
 	old = (char*)p;
 	vec = &rqstp->rq_arg.head[0];
+	if ((void *)old > vec->iov_base + vec->iov_len)
+		return 0;
 	avail = vec->iov_len - (old - (char*)vec->iov_base);
 	while (len && avail && *old) {
 		*new++ = *old++;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfs4layouts.c linux-libre-4.9.52-gnu/fs/nfsd/nfs4layouts.c
--- linux-libre-4.9-gnu/fs/nfsd/nfs4layouts.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfs4layouts.c	2017-09-27 08:40:05.000000000 -0400
@@ -223,10 +223,11 @@ nfsd4_alloc_layout_stateid(struct nfsd4_
 	struct nfs4_layout_stateid *ls;
 	struct nfs4_stid *stp;
 
-	stp = nfs4_alloc_stid(cstate->clp, nfs4_layout_stateid_cache);
+	stp = nfs4_alloc_stid(cstate->clp, nfs4_layout_stateid_cache,
+					nfsd4_free_layout_stateid);
 	if (!stp)
 		return NULL;
-	stp->sc_free = nfsd4_free_layout_stateid;
+
 	get_nfs4_file(fp);
 	stp->sc_file = fp;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfs4proc.c linux-libre-4.9.52-gnu/fs/nfsd/nfs4proc.c
--- linux-libre-4.9-gnu/fs/nfsd/nfs4proc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfs4proc.c	2017-09-27 08:40:05.000000000 -0400
@@ -1273,7 +1273,8 @@ nfsd4_layout_verify(struct svc_export *e
 		return NULL;
 	}
 
-	if (!(exp->ex_layout_types & (1 << layout_type))) {
+	if (layout_type >= LAYOUT_TYPE_MAX ||
+	    !(exp->ex_layout_types & (1 << layout_type))) {
 		dprintk("%s: layout type %d not supported\n",
 			__func__, layout_type);
 		return NULL;
@@ -1782,6 +1783,12 @@ nfsd4_proc_compound(struct svc_rqst *rqs
 			opdesc->op_get_currentstateid(cstate, &op->u);
 		op->status = opdesc->op_func(rqstp, cstate, &op->u);
 
+		/* Only from SEQUENCE */
+		if (cstate->status == nfserr_replay_cache) {
+			dprintk("%s NFS4.1 replay from cache\n", __func__);
+			status = op->status;
+			goto out;
+		}
 		if (!op->status) {
 			if (opdesc->op_set_currentstateid)
 				opdesc->op_set_currentstateid(cstate, &op->u);
@@ -1792,14 +1799,7 @@ nfsd4_proc_compound(struct svc_rqst *rqs
 			if (need_wrongsec_check(rqstp))
 				op->status = check_nfsd_access(current_fh->fh_export, rqstp);
 		}
-
 encode_op:
-		/* Only from SEQUENCE */
-		if (cstate->status == nfserr_replay_cache) {
-			dprintk("%s NFS4.1 replay from cache\n", __func__);
-			status = op->status;
-			goto out;
-		}
 		if (op->status == nfserr_replay_me) {
 			op->replay = &cstate->replay_owner->so_replay;
 			nfsd4_encode_replay(&resp->xdr, op);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfs4state.c linux-libre-4.9.52-gnu/fs/nfsd/nfs4state.c
--- linux-libre-4.9-gnu/fs/nfsd/nfs4state.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfs4state.c	2017-09-27 08:40:05.000000000 -0400
@@ -633,8 +633,8 @@ out:
 	return co;
 }
 
-struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
-					 struct kmem_cache *slab)
+struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab,
+				  void (*sc_free)(struct nfs4_stid *))
 {
 	struct nfs4_stid *stid;
 	int new_id;
@@ -650,6 +650,8 @@ struct nfs4_stid *nfs4_alloc_stid(struct
 	idr_preload_end();
 	if (new_id < 0)
 		goto out_free;
+
+	stid->sc_free = sc_free;
 	stid->sc_client = cl;
 	stid->sc_stateid.si_opaque.so_id = new_id;
 	stid->sc_stateid.si_opaque.so_clid = cl->cl_clientid;
@@ -675,15 +677,12 @@ out_free:
 static struct nfs4_ol_stateid * nfs4_alloc_open_stateid(struct nfs4_client *clp)
 {
 	struct nfs4_stid *stid;
-	struct nfs4_ol_stateid *stp;
 
-	stid = nfs4_alloc_stid(clp, stateid_slab);
+	stid = nfs4_alloc_stid(clp, stateid_slab, nfs4_free_ol_stateid);
 	if (!stid)
 		return NULL;
 
-	stp = openlockstateid(stid);
-	stp->st_stid.sc_free = nfs4_free_ol_stateid;
-	return stp;
+	return openlockstateid(stid);
 }
 
 static void nfs4_free_deleg(struct nfs4_stid *stid)
@@ -781,11 +780,10 @@ alloc_init_deleg(struct nfs4_client *clp
 		goto out_dec;
 	if (delegation_blocked(&current_fh->fh_handle))
 		goto out_dec;
-	dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab));
+	dp = delegstateid(nfs4_alloc_stid(clp, deleg_slab, nfs4_free_deleg));
 	if (dp == NULL)
 		goto out_dec;
 
-	dp->dl_stid.sc_free = nfs4_free_deleg;
 	/*
 	 * delegation seqid's are never incremented.  The 4.1 special
 	 * meaning of seqid 0 isn't meaningful, really, but let's avoid
@@ -5580,7 +5578,6 @@ init_lock_stateid(struct nfs4_ol_stateid
 	stp->st_stateowner = nfs4_get_stateowner(&lo->lo_owner);
 	get_nfs4_file(fp);
 	stp->st_stid.sc_file = fp;
-	stp->st_stid.sc_free = nfs4_free_lock_stateid;
 	stp->st_access_bmap = 0;
 	stp->st_deny_bmap = open_stp->st_deny_bmap;
 	stp->st_openstp = open_stp;
@@ -5623,7 +5620,7 @@ find_or_create_lock_stateid(struct nfs4_
 	lst = find_lock_stateid(lo, fi);
 	if (lst == NULL) {
 		spin_unlock(&clp->cl_lock);
-		ns = nfs4_alloc_stid(clp, stateid_slab);
+		ns = nfs4_alloc_stid(clp, stateid_slab, nfs4_free_lock_stateid);
 		if (ns == NULL)
 			return NULL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfs4xdr.c linux-libre-4.9.52-gnu/fs/nfsd/nfs4xdr.c
--- linux-libre-4.9-gnu/fs/nfsd/nfs4xdr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfs4xdr.c	2017-09-27 08:40:05.000000000 -0400
@@ -129,7 +129,7 @@ static void next_decode_page(struct nfsd
 	argp->p = page_address(argp->pagelist[0]);
 	argp->pagelist++;
 	if (argp->pagelen < PAGE_SIZE) {
-		argp->end = argp->p + (argp->pagelen>>2);
+		argp->end = argp->p + XDR_QUADLEN(argp->pagelen);
 		argp->pagelen = 0;
 	} else {
 		argp->end = argp->p + (PAGE_SIZE>>2);
@@ -1246,9 +1246,7 @@ nfsd4_decode_write(struct nfsd4_compound
 		argp->pagelen -= pages * PAGE_SIZE;
 		len -= pages * PAGE_SIZE;
 
-		argp->p = (__be32 *)page_address(argp->pagelist[0]);
-		argp->pagelist++;
-		argp->end = argp->p + XDR_QUADLEN(PAGE_SIZE);
+		next_decode_page(argp);
 	}
 	argp->p += XDR_QUADLEN(len);
 
@@ -2793,9 +2791,16 @@ out_acl:
 	}
 #endif /* CONFIG_NFSD_PNFS */
 	if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
-		status = nfsd4_encode_bitmap(xdr, NFSD_SUPPATTR_EXCLCREAT_WORD0,
-						  NFSD_SUPPATTR_EXCLCREAT_WORD1,
-						  NFSD_SUPPATTR_EXCLCREAT_WORD2);
+		u32 supp[3];
+
+		supp[0] = nfsd_suppattrs0(minorversion);
+		supp[1] = nfsd_suppattrs1(minorversion);
+		supp[2] = nfsd_suppattrs2(minorversion);
+		supp[0] &= NFSD_SUPPATTR_EXCLCREAT_WORD0;
+		supp[1] &= NFSD_SUPPATTR_EXCLCREAT_WORD1;
+		supp[2] &= NFSD_SUPPATTR_EXCLCREAT_WORD2;
+
+		status = nfsd4_encode_bitmap(xdr, supp[0], supp[1], supp[2]);
 		if (status)
 			goto out;
 	}
@@ -4081,8 +4086,7 @@ nfsd4_encode_getdeviceinfo(struct nfsd4_
 		struct nfsd4_getdeviceinfo *gdev)
 {
 	struct xdr_stream *xdr = &resp->xdr;
-	const struct nfsd4_layout_ops *ops =
-		nfsd4_layout_ops[gdev->gd_layout_type];
+	const struct nfsd4_layout_ops *ops;
 	u32 starting_len = xdr->buf->len, needed_len;
 	__be32 *p;
 
@@ -4099,6 +4103,7 @@ nfsd4_encode_getdeviceinfo(struct nfsd4_
 
 	/* If maxcount is 0 then just update notifications */
 	if (gdev->gd_maxcount != 0) {
+		ops = nfsd4_layout_ops[gdev->gd_layout_type];
 		nfserr = ops->encode_getdeviceinfo(xdr, gdev);
 		if (nfserr) {
 			/*
@@ -4151,8 +4156,7 @@ nfsd4_encode_layoutget(struct nfsd4_comp
 		struct nfsd4_layoutget *lgp)
 {
 	struct xdr_stream *xdr = &resp->xdr;
-	const struct nfsd4_layout_ops *ops =
-		nfsd4_layout_ops[lgp->lg_layout_type];
+	const struct nfsd4_layout_ops *ops;
 	__be32 *p;
 
 	dprintk("%s: err %d\n", __func__, nfserr);
@@ -4175,6 +4179,7 @@ nfsd4_encode_layoutget(struct nfsd4_comp
 	*p++ = cpu_to_be32(lgp->lg_seg.iomode);
 	*p++ = cpu_to_be32(lgp->lg_layout_type);
 
+	ops = nfsd4_layout_ops[lgp->lg_layout_type];
 	nfserr = ops->encode_layoutget(xdr, lgp);
 out:
 	kfree(lgp->lg_content);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfsproc.c linux-libre-4.9.52-gnu/fs/nfsd/nfsproc.c
--- linux-libre-4.9-gnu/fs/nfsd/nfsproc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfsproc.c	2017-09-27 08:40:05.000000000 -0400
@@ -790,6 +790,7 @@ nfserrno (int errno)
 		{ nfserr_serverfault, -ESERVERFAULT },
 		{ nfserr_serverfault, -ENFILE },
 		{ nfserr_io, -EUCLEAN },
+		{ nfserr_perm, -ENOKEY },
 	};
 	int	i;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfssvc.c linux-libre-4.9.52-gnu/fs/nfsd/nfssvc.c
--- linux-libre-4.9-gnu/fs/nfsd/nfssvc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfssvc.c	2017-09-27 08:40:05.000000000 -0400
@@ -733,6 +733,37 @@ static __be32 map_new_errors(u32 vers, _
 	return nfserr;
 }
 
+/*
+ * A write procedure can have a large argument, and a read procedure can
+ * have a large reply, but no NFSv2 or NFSv3 procedure has argument and
+ * reply that can both be larger than a page.  The xdr code has taken
+ * advantage of this assumption to be a sloppy about bounds checking in
+ * some cases.  Pending a rewrite of the NFSv2/v3 xdr code to fix that
+ * problem, we enforce these assumptions here:
+ */
+static bool nfs_request_too_big(struct svc_rqst *rqstp,
+				struct svc_procedure *proc)
+{
+	/*
+	 * The ACL code has more careful bounds-checking and is not
+	 * susceptible to this problem:
+	 */
+	if (rqstp->rq_prog != NFS_PROGRAM)
+		return false;
+	/*
+	 * Ditto NFSv4 (which can in theory have argument and reply both
+	 * more than a page):
+	 */
+	if (rqstp->rq_vers >= 4)
+		return false;
+	/* The reply will be small, we're OK: */
+	if (proc->pc_xdrressize > 0 &&
+	    proc->pc_xdrressize < XDR_QUADLEN(PAGE_SIZE))
+		return false;
+
+	return rqstp->rq_arg.len > PAGE_SIZE;
+}
+
 int
 nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
 {
@@ -745,6 +776,11 @@ nfsd_dispatch(struct svc_rqst *rqstp, __
 				rqstp->rq_vers, rqstp->rq_proc);
 	proc = rqstp->rq_procinfo;
 
+	if (nfs_request_too_big(rqstp, proc)) {
+		dprintk("nfsd: NFSv%d argument too large\n", rqstp->rq_vers);
+		*statp = rpc_garbage_args;
+		return 1;
+	}
 	/*
 	 * Give the xdr decoder a chance to change this if it wants
 	 * (necessary in the NFSv4.0 compound case)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/nfsxdr.c linux-libre-4.9.52-gnu/fs/nfsd/nfsxdr.c
--- linux-libre-4.9-gnu/fs/nfsd/nfsxdr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/nfsxdr.c	2017-09-27 08:40:05.000000000 -0400
@@ -280,6 +280,7 @@ nfssvc_decode_writeargs(struct svc_rqst
 					struct nfsd_writeargs *args)
 {
 	unsigned int len, hdr, dlen;
+	struct kvec *head = rqstp->rq_arg.head;
 	int v;
 
 	p = decode_fh(p, &args->fh);
@@ -300,9 +301,10 @@ nfssvc_decode_writeargs(struct svc_rqst
 	 * Check to make sure that we got the right number of
 	 * bytes.
 	 */
-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
-		- hdr;
+	hdr = (void*)p - head->iov_base;
+	if (hdr > head->iov_len)
+		return 0;
+	dlen = head->iov_len + rqstp->rq_arg.page_len - hdr;
 
 	/*
 	 * Round the length of the data which was specified up to
@@ -316,7 +318,7 @@ nfssvc_decode_writeargs(struct svc_rqst
 		return 0;
 
 	rqstp->rq_vec[0].iov_base = (void*)p;
-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
+	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
 	v = 0;
 	while (len > rqstp->rq_vec[v].iov_len) {
 		len -= rqstp->rq_vec[v].iov_len;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/state.h linux-libre-4.9.52-gnu/fs/nfsd/state.h
--- linux-libre-4.9-gnu/fs/nfsd/state.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/state.h	2017-09-27 08:40:05.000000000 -0400
@@ -603,8 +603,8 @@ extern __be32 nfs4_preprocess_stateid_op
 __be32 nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
 		     stateid_t *stateid, unsigned char typemask,
 		     struct nfs4_stid **s, struct nfsd_net *nn);
-struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl,
-		struct kmem_cache *slab);
+struct nfs4_stid *nfs4_alloc_stid(struct nfs4_client *cl, struct kmem_cache *slab,
+				  void (*sc_free)(struct nfs4_stid *));
 void nfs4_unhash_stid(struct nfs4_stid *s);
 void nfs4_put_stid(struct nfs4_stid *s);
 void nfs4_inc_and_copy_stateid(stateid_t *dst, struct nfs4_stid *stid);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nfsd/vfs.c linux-libre-4.9.52-gnu/fs/nfsd/vfs.c
--- linux-libre-4.9-gnu/fs/nfsd/vfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nfsd/vfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -377,7 +377,7 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 	__be32		err;
 	int		host_err;
 	bool		get_write_count;
-	int		size_change = 0;
+	bool		size_change = (iap->ia_valid & ATTR_SIZE);
 
 	if (iap->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_SIZE))
 		accmode |= NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE;
@@ -390,11 +390,11 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 	/* Get inode */
 	err = fh_verify(rqstp, fhp, ftype, accmode);
 	if (err)
-		goto out;
+		return err;
 	if (get_write_count) {
 		host_err = fh_want_write(fhp);
 		if (host_err)
-			return nfserrno(host_err);
+			goto out;
 	}
 
 	dentry = fhp->fh_dentry;
@@ -405,20 +405,28 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 		iap->ia_valid &= ~ATTR_MODE;
 
 	if (!iap->ia_valid)
-		goto out;
+		return 0;
 
 	nfsd_sanitize_attrs(inode, iap);
 
+	if (check_guard && guardtime != inode->i_ctime.tv_sec)
+		return nfserr_notsync;
+
 	/*
 	 * The size case is special, it changes the file in addition to the
-	 * attributes.
+	 * attributes, and file systems don't expect it to be mixed with
+	 * "random" attribute changes.  We thus split out the size change
+	 * into a separate call to ->setattr, and do the rest as a separate
+	 * setattr call.
 	 */
-	if (iap->ia_valid & ATTR_SIZE) {
+	if (size_change) {
 		err = nfsd_get_write_access(rqstp, fhp, iap);
 		if (err)
-			goto out;
-		size_change = 1;
+			return err;
+	}
 
+	fh_lock(fhp);
+	if (size_change) {
 		/*
 		 * RFC5661, Section 18.30.4:
 		 *   Changing the size of a file with SETATTR indirectly
@@ -426,29 +434,36 @@ nfsd_setattr(struct svc_rqst *rqstp, str
 		 *
 		 * (and similar for the older RFCs)
 		 */
-		if (iap->ia_size != i_size_read(inode))
-			iap->ia_valid |= ATTR_MTIME;
-	}
+		struct iattr size_attr = {
+			.ia_valid	= ATTR_SIZE | ATTR_CTIME | ATTR_MTIME,
+			.ia_size	= iap->ia_size,
+		};
 
-	iap->ia_valid |= ATTR_CTIME;
+		host_err = notify_change(dentry, &size_attr, NULL);
+		if (host_err)
+			goto out_unlock;
+		iap->ia_valid &= ~ATTR_SIZE;
 
-	if (check_guard && guardtime != inode->i_ctime.tv_sec) {
-		err = nfserr_notsync;
-		goto out_put_write_access;
+		/*
+		 * Avoid the additional setattr call below if the only other
+		 * attribute that the client sends is the mtime, as we update
+		 * it as part of the size change above.
+		 */
+		if ((iap->ia_valid & ~ATTR_MTIME) == 0)
+			goto out_unlock;
 	}
 
-	fh_lock(fhp);
+	iap->ia_valid |= ATTR_CTIME;
 	host_err = notify_change(dentry, iap, NULL);
-	fh_unlock(fhp);
-	err = nfserrno(host_err);
 
-out_put_write_access:
+out_unlock:
+	fh_unlock(fhp);
 	if (size_change)
 		put_write_access(inode);
-	if (!err)
-		err = nfserrno(commit_metadata(fhp));
 out:
-	return err;
+	if (!host_err)
+		host_err = commit_metadata(fhp);
+	return nfserrno(host_err);
 }
 
 #if defined(CONFIG_NFSD_V4)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nilfs2/btnode.c linux-libre-4.9.52-gnu/fs/nilfs2/btnode.c
--- linux-libre-4.9-gnu/fs/nilfs2/btnode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nilfs2/btnode.c	2017-09-27 08:40:05.000000000 -0400
@@ -50,7 +50,7 @@ nilfs_btnode_create_block(struct address
 		brelse(bh);
 		BUG();
 	}
-	memset(bh->b_data, 0, 1 << inode->i_blkbits);
+	memset(bh->b_data, 0, i_blocksize(inode));
 	bh->b_bdev = inode->i_sb->s_bdev;
 	bh->b_blocknr = blocknr;
 	set_buffer_mapped(bh);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nilfs2/inode.c linux-libre-4.9.52-gnu/fs/nilfs2/inode.c
--- linux-libre-4.9-gnu/fs/nilfs2/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nilfs2/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,7 +51,7 @@ void nilfs_inode_add_blocks(struct inode
 {
 	struct nilfs_root *root = NILFS_I(inode)->i_root;
 
-	inode_add_bytes(inode, (1 << inode->i_blkbits) * n);
+	inode_add_bytes(inode, i_blocksize(inode) * n);
 	if (root)
 		atomic64_add(n, &root->blocks_count);
 }
@@ -60,7 +60,7 @@ void nilfs_inode_sub_blocks(struct inode
 {
 	struct nilfs_root *root = NILFS_I(inode)->i_root;
 
-	inode_sub_bytes(inode, (1 << inode->i_blkbits) * n);
+	inode_sub_bytes(inode, i_blocksize(inode) * n);
 	if (root)
 		atomic64_sub(n, &root->blocks_count);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nilfs2/mdt.c linux-libre-4.9.52-gnu/fs/nilfs2/mdt.c
--- linux-libre-4.9-gnu/fs/nilfs2/mdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nilfs2/mdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -57,7 +57,7 @@ nilfs_mdt_insert_new_block(struct inode
 	set_buffer_mapped(bh);
 
 	kaddr = kmap_atomic(bh->b_page);
-	memset(kaddr + bh_offset(bh), 0, 1 << inode->i_blkbits);
+	memset(kaddr + bh_offset(bh), 0, i_blocksize(inode));
 	if (init_block)
 		init_block(inode, bh, kaddr);
 	flush_dcache_page(bh->b_page);
@@ -501,7 +501,7 @@ void nilfs_mdt_set_entry_size(struct ino
 	struct nilfs_mdt_info *mi = NILFS_MDT(inode);
 
 	mi->mi_entry_size = entry_size;
-	mi->mi_entries_per_block = (1 << inode->i_blkbits) / entry_size;
+	mi->mi_entries_per_block = i_blocksize(inode) / entry_size;
 	mi->mi_first_entry_offset = DIV_ROUND_UP(header_size, entry_size);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/nilfs2/segment.c linux-libre-4.9.52-gnu/fs/nilfs2/segment.c
--- linux-libre-4.9-gnu/fs/nilfs2/segment.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/nilfs2/segment.c	2017-09-27 08:40:05.000000000 -0400
@@ -723,7 +723,7 @@ static size_t nilfs_lookup_dirty_data_bu
 
 		lock_page(page);
 		if (!page_has_buffers(page))
-			create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+			create_empty_buffers(page, i_blocksize(inode), 0);
 		unlock_page(page);
 
 		bh = head = page_buffers(page);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/notify/fanotify/fanotify_user.c linux-libre-4.9.52-gnu/fs/notify/fanotify/fanotify_user.c
--- linux-libre-4.9-gnu/fs/notify/fanotify/fanotify_user.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/notify/fanotify/fanotify_user.c	2017-09-27 08:40:05.000000000 -0400
@@ -294,27 +294,37 @@ static ssize_t fanotify_read(struct file
 		}
 
 		ret = copy_event_to_user(group, kevent, buf);
+		if (unlikely(ret == -EOPENSTALE)) {
+			/*
+			 * We cannot report events with stale fd so drop it.
+			 * Setting ret to 0 will continue the event loop and
+			 * do the right thing if there are no more events to
+			 * read (i.e. return bytes read, -EAGAIN or wait).
+			 */
+			ret = 0;
+		}
+
 		/*
 		 * Permission events get queued to wait for response.  Other
 		 * events can be destroyed now.
 		 */
 		if (!(kevent->mask & FAN_ALL_PERM_EVENTS)) {
 			fsnotify_destroy_event(group, kevent);
-			if (ret < 0)
-				break;
 		} else {
 #ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-			if (ret < 0) {
+			if (ret <= 0) {
 				FANOTIFY_PE(kevent)->response = FAN_DENY;
 				wake_up(&group->fanotify_data.access_waitq);
-				break;
+			} else {
+				spin_lock(&group->notification_lock);
+				list_add_tail(&kevent->list,
+					&group->fanotify_data.access_list);
+				spin_unlock(&group->notification_lock);
 			}
-			spin_lock(&group->notification_lock);
-			list_add_tail(&kevent->list,
-				      &group->fanotify_data.access_list);
-			spin_unlock(&group->notification_lock);
 #endif
 		}
+		if (ret < 0)
+			break;
 		buf += ret;
 		count -= ret;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/notify/fsnotify.c linux-libre-4.9.52-gnu/fs/notify/fsnotify.c
--- linux-libre-4.9-gnu/fs/notify/fsnotify.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/notify/fsnotify.c	2017-09-27 08:40:05.000000000 -0400
@@ -104,16 +104,20 @@ int __fsnotify_parent(struct path *path,
 	if (unlikely(!fsnotify_inode_watches_children(p_inode)))
 		__fsnotify_update_child_dentry_flags(p_inode);
 	else if (p_inode->i_fsnotify_mask & mask) {
+		struct name_snapshot name;
+
 		/* we are notifying a parent so come up with the new mask which
 		 * specifies these are events which came from a child. */
 		mask |= FS_EVENT_ON_CHILD;
 
+		take_dentry_name_snapshot(&name, dentry);
 		if (path)
 			ret = fsnotify(p_inode, mask, path, FSNOTIFY_EVENT_PATH,
-				       dentry->d_name.name, 0);
+				       name.name, 0);
 		else
 			ret = fsnotify(p_inode, mask, dentry->d_inode, FSNOTIFY_EVENT_INODE,
-				       dentry->d_name.name, 0);
+				       name.name, 0);
+		release_dentry_name_snapshot(&name);
 	}
 
 	dput(parent);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/notify/inode_mark.c linux-libre-4.9.52-gnu/fs/notify/inode_mark.c
--- linux-libre-4.9-gnu/fs/notify/inode_mark.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/notify/inode_mark.c	2017-09-27 08:40:05.000000000 -0400
@@ -150,12 +150,10 @@ int fsnotify_add_inode_mark(struct fsnot
  */
 void fsnotify_unmount_inodes(struct super_block *sb)
 {
-	struct inode *inode, *next_i, *need_iput = NULL;
+	struct inode *inode, *iput_inode = NULL;
 
 	spin_lock(&sb->s_inode_list_lock);
-	list_for_each_entry_safe(inode, next_i, &sb->s_inodes, i_sb_list) {
-		struct inode *need_iput_tmp;
-
+	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {
 		/*
 		 * We cannot __iget() an inode in state I_FREEING,
 		 * I_WILL_FREE, or I_NEW which is fine because by that point
@@ -178,49 +176,24 @@ void fsnotify_unmount_inodes(struct supe
 			continue;
 		}
 
-		need_iput_tmp = need_iput;
-		need_iput = NULL;
-
-		/* In case fsnotify_inode_delete() drops a reference. */
-		if (inode != need_iput_tmp)
-			__iget(inode);
-		else
-			need_iput_tmp = NULL;
+		__iget(inode);
 		spin_unlock(&inode->i_lock);
-
-		/* In case the dropping of a reference would nuke next_i. */
-		while (&next_i->i_sb_list != &sb->s_inodes) {
-			spin_lock(&next_i->i_lock);
-			if (!(next_i->i_state & (I_FREEING | I_WILL_FREE)) &&
-						atomic_read(&next_i->i_count)) {
-				__iget(next_i);
-				need_iput = next_i;
-				spin_unlock(&next_i->i_lock);
-				break;
-			}
-			spin_unlock(&next_i->i_lock);
-			next_i = list_next_entry(next_i, i_sb_list);
-		}
-
-		/*
-		 * We can safely drop s_inode_list_lock here because either
-		 * we actually hold references on both inode and next_i or
-		 * end of list.  Also no new inodes will be added since the
-		 * umount has begun.
-		 */
 		spin_unlock(&sb->s_inode_list_lock);
 
-		if (need_iput_tmp)
-			iput(need_iput_tmp);
+		if (iput_inode)
+			iput(iput_inode);
 
 		/* for each watch, send FS_UNMOUNT and then remove it */
 		fsnotify(inode, FS_UNMOUNT, inode, FSNOTIFY_EVENT_INODE, NULL, 0);
 
 		fsnotify_inode_delete(inode);
 
-		iput(inode);
+		iput_inode = inode;
 
 		spin_lock(&sb->s_inode_list_lock);
 	}
 	spin_unlock(&sb->s_inode_list_lock);
+
+	if (iput_inode)
+		iput(iput_inode);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ocfs2/aops.c linux-libre-4.9.52-gnu/fs/ocfs2/aops.c
--- linux-libre-4.9-gnu/fs/ocfs2/aops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ocfs2/aops.c	2017-09-27 08:40:05.000000000 -0400
@@ -599,7 +599,7 @@ int ocfs2_map_page_blocks(struct page *p
 	int ret = 0;
 	struct buffer_head *head, *bh, *wait[2], **wait_bh = wait;
 	unsigned int block_end, block_start;
-	unsigned int bsize = 1 << inode->i_blkbits;
+	unsigned int bsize = i_blocksize(inode);
 
 	if (!page_has_buffers(page))
 		create_empty_buffers(page, bsize, 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ocfs2/cluster/heartbeat.c linux-libre-4.9.52-gnu/fs/ocfs2/cluster/heartbeat.c
--- linux-libre-4.9-gnu/fs/ocfs2/cluster/heartbeat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ocfs2/cluster/heartbeat.c	2017-09-27 08:40:05.000000000 -0400
@@ -2242,13 +2242,13 @@ unlock:
 	spin_unlock(&o2hb_live_lock);
 }
 
-static ssize_t o2hb_heartbeat_group_threshold_show(struct config_item *item,
+static ssize_t o2hb_heartbeat_group_dead_threshold_show(struct config_item *item,
 		char *page)
 {
 	return sprintf(page, "%u\n", o2hb_dead_threshold);
 }
 
-static ssize_t o2hb_heartbeat_group_threshold_store(struct config_item *item,
+static ssize_t o2hb_heartbeat_group_dead_threshold_store(struct config_item *item,
 		const char *page, size_t count)
 {
 	unsigned long tmp;
@@ -2297,11 +2297,11 @@ static ssize_t o2hb_heartbeat_group_mode
 
 }
 
-CONFIGFS_ATTR(o2hb_heartbeat_group_, threshold);
+CONFIGFS_ATTR(o2hb_heartbeat_group_, dead_threshold);
 CONFIGFS_ATTR(o2hb_heartbeat_group_, mode);
 
 static struct configfs_attribute *o2hb_heartbeat_group_attrs[] = {
-	&o2hb_heartbeat_group_attr_threshold,
+	&o2hb_heartbeat_group_attr_dead_threshold,
 	&o2hb_heartbeat_group_attr_mode,
 	NULL,
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ocfs2/dlmglue.c linux-libre-4.9.52-gnu/fs/ocfs2/dlmglue.c
--- linux-libre-4.9-gnu/fs/ocfs2/dlmglue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ocfs2/dlmglue.c	2017-09-27 08:40:05.000000000 -0400
@@ -3303,6 +3303,16 @@ static int ocfs2_downconvert_lock(struct
 	mlog(ML_BASTS, "lockres %s, level %d => %d\n", lockres->l_name,
 	     lockres->l_level, new_level);
 
+	/*
+	 * On DLM_LKF_VALBLK, fsdlm behaves differently with o2cb. It always
+	 * expects DLM_LKF_VALBLK being set if the LKB has LVB, so that
+	 * we can recover correctly from node failure. Otherwise, we may get
+	 * invalid LVB in LKB, but without DLM_SBF_VALNOTVALID being set.
+	 */
+	if (!ocfs2_is_o2cb_active() &&
+	    lockres->l_ops->flags & LOCK_TYPE_USES_LVB)
+		lvb = 1;
+
 	if (lvb)
 		dlm_flags |= DLM_LKF_VALBLK;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ocfs2/file.c linux-libre-4.9.52-gnu/fs/ocfs2/file.c
--- linux-libre-4.9-gnu/fs/ocfs2/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ocfs2/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -808,7 +808,7 @@ static int ocfs2_write_zero_page(struct
 	/* We know that zero_from is block aligned */
 	for (block_start = zero_from; block_start < zero_to;
 	     block_start = block_end) {
-		block_end = block_start + (1 << inode->i_blkbits);
+		block_end = block_start + i_blocksize(inode);
 
 		/*
 		 * block_start is block-aligned.  Bump it by one to force
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ocfs2/stackglue.c linux-libre-4.9.52-gnu/fs/ocfs2/stackglue.c
--- linux-libre-4.9-gnu/fs/ocfs2/stackglue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ocfs2/stackglue.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,6 +48,12 @@ static char ocfs2_hb_ctl_path[OCFS2_MAX_
  */
 static struct ocfs2_stack_plugin *active_stack;
 
+inline int ocfs2_is_o2cb_active(void)
+{
+	return !strcmp(active_stack->sp_name, OCFS2_STACK_PLUGIN_O2CB);
+}
+EXPORT_SYMBOL_GPL(ocfs2_is_o2cb_active);
+
 static struct ocfs2_stack_plugin *ocfs2_stack_lookup(const char *name)
 {
 	struct ocfs2_stack_plugin *p;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ocfs2/stackglue.h linux-libre-4.9.52-gnu/fs/ocfs2/stackglue.h
--- linux-libre-4.9-gnu/fs/ocfs2/stackglue.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ocfs2/stackglue.h	2017-09-27 08:40:05.000000000 -0400
@@ -298,6 +298,9 @@ void ocfs2_stack_glue_set_max_proto_vers
 int ocfs2_stack_glue_register(struct ocfs2_stack_plugin *plugin);
 void ocfs2_stack_glue_unregister(struct ocfs2_stack_plugin *plugin);
 
+/* In ocfs2_downconvert_lock(), we need to know which stack we are using */
+int ocfs2_is_o2cb_active(void);
+
 extern struct kset *ocfs2_kset;
 
 #endif  /* STACKGLUE_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/open.c linux-libre-4.9.52-gnu/fs/open.c
--- linux-libre-4.9-gnu/fs/open.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/open.c	2017-09-27 08:40:05.000000000 -0400
@@ -902,6 +902,12 @@ static inline int build_open_flags(int f
 	int lookup_flags = 0;
 	int acc_mode = ACC_MODE(flags);
 
+	/*
+	 * Clear out all open flags we don't know about so that we don't report
+	 * them in fcntl(F_GETFD) or similar interfaces.
+	 */
+	flags &= VALID_OPEN_FLAGS;
+
 	if (flags & (O_CREAT | __O_TMPFILE))
 		op->mode = (mode & S_IALLUGO) | S_IFREG;
 	else
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/acl.c linux-libre-4.9.52-gnu/fs/orangefs/acl.c
--- linux-libre-4.9-gnu/fs/orangefs/acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -61,9 +61,9 @@ struct posix_acl *orangefs_get_acl(struc
 	return acl;
 }
 
-int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+static int __orangefs_set_acl(struct inode *inode, struct posix_acl *acl,
+			      int type)
 {
-	struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
 	int error = 0;
 	void *value = NULL;
 	size_t size = 0;
@@ -72,22 +72,6 @@ int orangefs_set_acl(struct inode *inode
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			umode_t mode;
-
-			error = posix_acl_update_mode(inode, &mode, &acl);
-			if (error) {
-				gossip_err("%s: posix_acl_update_mode err: %d\n",
-					   __func__,
-					   error);
-				return error;
-			}
-
-			if (inode->i_mode != mode)
-				SetModeFlag(orangefs_inode);
-			inode->i_mode = mode;
-			mark_inode_dirty_sync(inode);
-		}
 		break;
 	case ACL_TYPE_DEFAULT:
 		name = XATTR_NAME_POSIX_ACL_DEFAULT;
@@ -132,6 +116,29 @@ out:
 	return error;
 }
 
+int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+	int error;
+
+	if (type == ACL_TYPE_ACCESS && acl) {
+		umode_t mode;
+
+		error = posix_acl_update_mode(inode, &mode, &acl);
+		if (error) {
+			gossip_err("%s: posix_acl_update_mode err: %d\n",
+				   __func__,
+				   error);
+			return error;
+		}
+
+		if (inode->i_mode != mode)
+			SetModeFlag(ORANGEFS_I(inode));
+		inode->i_mode = mode;
+		mark_inode_dirty_sync(inode);
+	}
+	return __orangefs_set_acl(inode, acl, type);
+}
+
 int orangefs_init_acl(struct inode *inode, struct inode *dir)
 {
 	struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
@@ -146,13 +153,14 @@ int orangefs_init_acl(struct inode *inod
 		return error;
 
 	if (default_acl) {
-		error = orangefs_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
+		error = __orangefs_set_acl(inode, default_acl,
+					   ACL_TYPE_DEFAULT);
 		posix_acl_release(default_acl);
 	}
 
 	if (acl) {
 		if (!error)
-			error = orangefs_set_acl(inode, acl, ACL_TYPE_ACCESS);
+			error = __orangefs_set_acl(inode, acl, ACL_TYPE_ACCESS);
 		posix_acl_release(acl);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/devorangefs-req.c linux-libre-4.9.52-gnu/fs/orangefs/devorangefs-req.c
--- linux-libre-4.9-gnu/fs/orangefs/devorangefs-req.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/devorangefs-req.c	2017-09-27 08:40:05.000000000 -0400
@@ -208,14 +208,19 @@ restart:
 				continue;
 			/*
 			 * Skip ops whose filesystem we don't know about unless
-			 * it is being mounted.
+			 * it is being mounted or unmounted.  It is possible for
+			 * a filesystem we don't know about to be unmounted if
+			 * it fails to mount in the kernel after userspace has
+			 * been sent the mount request.
 			 */
 			/* XXX: is there a better way to detect this? */
 			} else if (ret == -1 &&
 				   !(op->upcall.type ==
 					ORANGEFS_VFS_OP_FS_MOUNT ||
 				     op->upcall.type ==
-					ORANGEFS_VFS_OP_GETATTR)) {
+					ORANGEFS_VFS_OP_GETATTR ||
+				     op->upcall.type ==
+					ORANGEFS_VFS_OP_FS_UMOUNT)) {
 				gossip_debug(GOSSIP_DEV_DEBUG,
 				    "orangefs: skipping op tag %llu %s\n",
 				    llu(op->tag), get_opname_string(op));
@@ -402,8 +407,9 @@ static ssize_t orangefs_devreq_write_ite
 	/* remove the op from the in progress hash table */
 	op = orangefs_devreq_remove_op(head.tag);
 	if (!op) {
-		gossip_err("WARNING: No one's waiting for tag %llu\n",
-			   llu(head.tag));
+		gossip_debug(GOSSIP_DEV_DEBUG,
+			     "%s: No one's waiting for tag %llu\n",
+			     __func__, llu(head.tag));
 		return ret;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/inode.c linux-libre-4.9.52-gnu/fs/orangefs/inode.c
--- linux-libre-4.9-gnu/fs/orangefs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -223,8 +223,7 @@ int orangefs_setattr(struct dentry *dent
 	if (ret)
 		goto out;
 
-	if ((iattr->ia_valid & ATTR_SIZE) &&
-	    iattr->ia_size != i_size_read(inode)) {
+	if (iattr->ia_valid & ATTR_SIZE) {
 		ret = orangefs_setattr_size(inode, iattr);
 		if (ret)
 			goto out;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/namei.c linux-libre-4.9.52-gnu/fs/orangefs/namei.c
--- linux-libre-4.9-gnu/fs/orangefs/namei.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/namei.c	2017-09-27 08:40:05.000000000 -0400
@@ -193,8 +193,6 @@ static struct dentry *orangefs_lookup(st
 		goto out;
 	}
 
-	ORANGEFS_I(inode)->getattr_time = jiffies - 1;
-
 	gossip_debug(GOSSIP_NAME_DEBUG,
 		     "%s:%s:%d "
 		     "Found good inode [%lu] with count [%d]\n",
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/orangefs-debugfs.c linux-libre-4.9.52-gnu/fs/orangefs/orangefs-debugfs.c
--- linux-libre-4.9-gnu/fs/orangefs/orangefs-debugfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/orangefs-debugfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -671,8 +671,10 @@ int orangefs_prepare_debugfs_help_string
 		 */
 		cdm_element_count =
 			orangefs_prepare_cdm_array(client_debug_array_string);
-		if (cdm_element_count <= 0)
+		if (cdm_element_count <= 0) {
+			kfree(new);
 			goto out;
+		}
 
 		for (i = 0; i < cdm_element_count; i++) {
 			strlcat(new, "\t", string_size);
@@ -963,13 +965,13 @@ int orangefs_debugfs_new_client_string(v
 	int ret;
 
 	ret = copy_from_user(&client_debug_array_string,
-                                     (void __user *)arg,
-                                     ORANGEFS_MAX_DEBUG_STRING_LEN);
+			     (void __user *)arg,
+			     ORANGEFS_MAX_DEBUG_STRING_LEN);
 
 	if (ret != 0) {
 		pr_info("%s: CLIENT_STRING: copy_from_user failed\n",
 			__func__);
-		return -EIO;
+		return -EFAULT;
 	}
 
 	/*
@@ -984,17 +986,18 @@ int orangefs_debugfs_new_client_string(v
 	 */
 	client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN - 1] =
 		'\0';
-	
+
 	pr_info("%s: client debug array string has been received.\n",
 		__func__);
 
 	if (!help_string_initialized) {
 
 		/* Build a proper debug help string. */
-		if (orangefs_prepare_debugfs_help_string(0)) {
+		ret = orangefs_prepare_debugfs_help_string(0);
+		if (ret) {
 			gossip_err("%s: no debug help string \n",
 				   __func__);
-			return -EIO;
+			return ret;
 		}
 
 	}
@@ -1007,7 +1010,7 @@ int orangefs_debugfs_new_client_string(v
 
 	help_string_initialized++;
 
-	return ret;
+	return 0;
 }
 
 int orangefs_debugfs_new_debug(void __user *arg) 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/orangefs-dev-proto.h linux-libre-4.9.52-gnu/fs/orangefs/orangefs-dev-proto.h
--- linux-libre-4.9-gnu/fs/orangefs/orangefs-dev-proto.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/orangefs-dev-proto.h	2017-09-27 08:40:05.000000000 -0400
@@ -50,8 +50,7 @@
  * Misc constants. Please retain them as multiples of 8!
  * Otherwise 32-64 bit interactions will be messed up :)
  */
-#define ORANGEFS_MAX_DEBUG_STRING_LEN	0x00000400
-#define ORANGEFS_MAX_DEBUG_ARRAY_LEN	0x00000800
+#define ORANGEFS_MAX_DEBUG_STRING_LEN	0x00000800
 
 /*
  * The maximum number of directory entries in a single request is 96.
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/orangefs-kernel.h linux-libre-4.9.52-gnu/fs/orangefs/orangefs-kernel.h
--- linux-libre-4.9-gnu/fs/orangefs/orangefs-kernel.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/orangefs-kernel.h	2017-09-27 08:40:05.000000000 -0400
@@ -249,6 +249,7 @@ struct orangefs_sb_info_s {
 	char devname[ORANGEFS_MAX_SERVER_ADDR_LEN];
 	struct super_block *sb;
 	int mount_pending;
+	int no_list;
 	struct list_head list;
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/orangefs-utils.c linux-libre-4.9.52-gnu/fs/orangefs/orangefs-utils.c
--- linux-libre-4.9-gnu/fs/orangefs/orangefs-utils.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/orangefs-utils.c	2017-09-27 08:40:05.000000000 -0400
@@ -306,7 +306,7 @@ int orangefs_inode_getattr(struct inode
 		break;
 	case S_IFDIR:
 		inode->i_size = PAGE_SIZE;
-		orangefs_inode->blksize = (1 << inode->i_blkbits);
+		orangefs_inode->blksize = i_blocksize(inode);
 		spin_lock(&inode->i_lock);
 		inode_set_bytes(inode, inode->i_size);
 		spin_unlock(&inode->i_lock);
@@ -316,7 +316,7 @@ int orangefs_inode_getattr(struct inode
 		if (new) {
 			inode->i_size = (loff_t)strlen(new_op->
 			    downcall.resp.getattr.link_target);
-			orangefs_inode->blksize = (1 << inode->i_blkbits);
+			orangefs_inode->blksize = i_blocksize(inode);
 			ret = strscpy(orangefs_inode->link_target,
 			    new_op->downcall.resp.getattr.link_target,
 			    ORANGEFS_NAME_MAX);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/super.c linux-libre-4.9.52-gnu/fs/orangefs/super.c
--- linux-libre-4.9-gnu/fs/orangefs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -115,6 +115,13 @@ static struct inode *orangefs_alloc_inod
 	return &orangefs_inode->vfs_inode;
 }
 
+static void orangefs_i_callback(struct rcu_head *head)
+{
+	struct inode *inode = container_of(head, struct inode, i_rcu);
+	struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
+	kmem_cache_free(orangefs_inode_cache, orangefs_inode);
+}
+
 static void orangefs_destroy_inode(struct inode *inode)
 {
 	struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
@@ -123,7 +130,7 @@ static void orangefs_destroy_inode(struc
 			"%s: deallocated %p destroying inode %pU\n",
 			__func__, orangefs_inode, get_khandle_from_ino(inode));
 
-	kmem_cache_free(orangefs_inode_cache, orangefs_inode);
+	call_rcu(&inode->i_rcu, orangefs_i_callback);
 }
 
 /*
@@ -256,8 +263,13 @@ int orangefs_remount(struct orangefs_sb_
 		if (!new_op)
 			return -ENOMEM;
 		new_op->upcall.req.features.features = 0;
-		ret = service_operation(new_op, "orangefs_features", 0);
-		orangefs_features = new_op->downcall.resp.features.features;
+		ret = service_operation(new_op, "orangefs_features",
+		    ORANGEFS_OP_PRIORITY | ORANGEFS_OP_NO_MUTEX);
+		if (!ret)
+			orangefs_features =
+			    new_op->downcall.resp.features.features;
+		else
+			orangefs_features = 0;
 		op_release(new_op);
 	} else {
 		orangefs_features = 0;
@@ -481,7 +493,7 @@ struct dentry *orangefs_mount(struct fil
 
 	if (ret) {
 		d = ERR_PTR(ret);
-		goto free_op;
+		goto free_sb_and_op;
 	}
 
 	/*
@@ -507,6 +519,9 @@ struct dentry *orangefs_mount(struct fil
 	spin_unlock(&orangefs_superblocks_lock);
 	op_release(new_op);
 
+	/* Must be removed from the list now. */
+	ORANGEFS_SB(sb)->no_list = 0;
+
 	if (orangefs_userspace_version >= 20906) {
 		new_op = op_alloc(ORANGEFS_VFS_OP_FEATURES);
 		if (!new_op)
@@ -521,6 +536,10 @@ struct dentry *orangefs_mount(struct fil
 
 	return dget(sb->s_root);
 
+free_sb_and_op:
+	/* Will call orangefs_kill_sb with sb not in list. */
+	ORANGEFS_SB(sb)->no_list = 1;
+	deactivate_locked_super(sb);
 free_op:
 	gossip_err("orangefs_mount: mount request failed with %d\n", ret);
 	if (ret == -EINVAL) {
@@ -546,12 +565,14 @@ void orangefs_kill_sb(struct super_block
 	 */
 	 orangefs_unmount_sb(sb);
 
-	/* remove the sb from our list of orangefs specific sb's */
-
-	spin_lock(&orangefs_superblocks_lock);
-	__list_del_entry(&ORANGEFS_SB(sb)->list);	/* not list_del_init */
-	ORANGEFS_SB(sb)->list.prev = NULL;
-	spin_unlock(&orangefs_superblocks_lock);
+	if (!ORANGEFS_SB(sb)->no_list) {
+		/* remove the sb from our list of orangefs specific sb's */
+		spin_lock(&orangefs_superblocks_lock);
+		/* not list_del_init */
+		__list_del_entry(&ORANGEFS_SB(sb)->list);
+		ORANGEFS_SB(sb)->list.prev = NULL;
+		spin_unlock(&orangefs_superblocks_lock);
+	}
 
 	/*
 	 * make sure that ORANGEFS_DEV_REMOUNT_ALL loop that might've seen us
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/orangefs/xattr.c linux-libre-4.9.52-gnu/fs/orangefs/xattr.c
--- linux-libre-4.9-gnu/fs/orangefs/xattr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/orangefs/xattr.c	2017-09-27 08:40:05.000000000 -0400
@@ -76,11 +76,8 @@ ssize_t orangefs_inode_getxattr(struct i
 	if (S_ISLNK(inode->i_mode))
 		return -EOPNOTSUPP;
 
-	if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN) {
-		gossip_err("Invalid key length (%d)\n",
-			   (int)strlen(name));
+	if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
 		return -EINVAL;
-	}
 
 	fsuid = from_kuid(&init_user_ns, current_fsuid());
 	fsgid = from_kgid(&init_user_ns, current_fsgid());
@@ -172,6 +169,9 @@ static int orangefs_inode_removexattr(st
 	struct orangefs_kernel_op_s *new_op = NULL;
 	int ret = -ENOMEM;
 
+	if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
+		return -EINVAL;
+
 	down_write(&orangefs_inode->xattr_sem);
 	new_op = op_alloc(ORANGEFS_VFS_OP_REMOVEXATTR);
 	if (!new_op)
@@ -231,23 +231,13 @@ int orangefs_inode_setxattr(struct inode
 		     "%s: name %s, buffer_size %zd\n",
 		     __func__, name, size);
 
-	if (size >= ORANGEFS_MAX_XATTR_VALUELEN ||
-	    flags < 0) {
-		gossip_err("orangefs_inode_setxattr: bogus values of size(%d), flags(%d)\n",
-			   (int)size,
-			   flags);
+	if (size > ORANGEFS_MAX_XATTR_VALUELEN)
+		return -EINVAL;
+	if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
 		return -EINVAL;
-	}
 
 	internal_flag = convert_to_internal_xattr_flags(flags);
 
-	if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN) {
-		gossip_err
-		    ("orangefs_inode_setxattr: bogus key size (%d)\n",
-		     (int)(strlen(name)));
-		return -EINVAL;
-	}
-
 	/* This is equivalent to a removexattr */
 	if (size == 0 && value == NULL) {
 		gossip_debug(GOSSIP_XATTR_DEBUG,
@@ -358,7 +348,7 @@ try_again:
 
 	returned_count = new_op->downcall.resp.listxattr.returned_count;
 	if (returned_count < 0 ||
-	    returned_count >= ORANGEFS_MAX_XATTR_LISTLEN) {
+	    returned_count > ORANGEFS_MAX_XATTR_LISTLEN) {
 		gossip_err("%s: impossible value for returned_count:%d:\n",
 		__func__,
 		returned_count);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/overlayfs/super.c linux-libre-4.9.52-gnu/fs/overlayfs/super.c
--- linux-libre-4.9-gnu/fs/overlayfs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/overlayfs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -1146,6 +1146,7 @@ static int ovl_fill_super(struct super_b
 	unsigned int stacklen = 0;
 	unsigned int i;
 	bool remote = false;
+	struct cred *cred;
 	int err;
 
 	err = -ENOMEM;
@@ -1309,10 +1310,14 @@ static int ovl_fill_super(struct super_b
 	else
 		sb->s_d_op = &ovl_dentry_operations;
 
-	ufs->creator_cred = prepare_creds();
-	if (!ufs->creator_cred)
+	err = -ENOMEM;
+	ufs->creator_cred = cred = prepare_creds();
+	if (!cred)
 		goto out_put_lower_mnt;
 
+	/* Never override disk quota limits or use reserved space */
+	cap_lower(cred->cap_effective, CAP_SYS_RESOURCE);
+
 	err = -ENOMEM;
 	oe = ovl_alloc_entry(numlower);
 	if (!oe)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/pnode.c linux-libre-4.9.52-gnu/fs/pnode.c
--- linux-libre-4.9-gnu/fs/pnode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/pnode.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,11 @@ static inline struct mount *first_slave(
 	return list_entry(p->mnt_slave_list.next, struct mount, mnt_slave);
 }
 
+static inline struct mount *last_slave(struct mount *p)
+{
+	return list_entry(p->mnt_slave_list.prev, struct mount, mnt_slave);
+}
+
 static inline struct mount *next_slave(struct mount *p)
 {
 	return list_entry(p->mnt_slave.next, struct mount, mnt_slave);
@@ -164,6 +169,19 @@ static struct mount *propagation_next(st
 	}
 }
 
+static struct mount *skip_propagation_subtree(struct mount *m,
+						struct mount *origin)
+{
+	/*
+	 * Advance m such that propagation_next will not return
+	 * the slaves of m.
+	 */
+	if (!IS_MNT_NEW(m) && !list_empty(&m->mnt_slave_list))
+		m = last_slave(m);
+
+	return m;
+}
+
 static struct mount *next_group(struct mount *m, struct mount *origin)
 {
 	while (1) {
@@ -324,6 +342,21 @@ out:
 	return ret;
 }
 
+static struct mount *find_topper(struct mount *mnt)
+{
+	/* If there is exactly one mount covering mnt completely return it. */
+	struct mount *child;
+
+	if (!list_is_singular(&mnt->mnt_mounts))
+		return NULL;
+
+	child = list_first_entry(&mnt->mnt_mounts, struct mount, mnt_child);
+	if (child->mnt_mountpoint != mnt->mnt.mnt_root)
+		return NULL;
+
+	return child;
+}
+
 /*
  * return true if the refcount is greater than count
  */
@@ -344,9 +377,8 @@ static inline int do_refcount_check(stru
  */
 int propagate_mount_busy(struct mount *mnt, int refcnt)
 {
-	struct mount *m, *child;
+	struct mount *m, *child, *topper;
 	struct mount *parent = mnt->mnt_parent;
-	int ret = 0;
 
 	if (mnt == parent)
 		return do_refcount_check(mnt, refcnt);
@@ -361,12 +393,24 @@ int propagate_mount_busy(struct mount *m
 
 	for (m = propagation_next(parent, parent); m;
 	     		m = propagation_next(m, parent)) {
-		child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);
-		if (child && list_empty(&child->mnt_mounts) &&
-		    (ret = do_refcount_check(child, 1)))
-			break;
+		int count = 1;
+		child = __lookup_mnt(&m->mnt, mnt->mnt_mountpoint);
+		if (!child)
+			continue;
+
+		/* Is there exactly one mount on the child that covers
+		 * it completely whose reference should be ignored?
+		 */
+		topper = find_topper(child);
+		if (topper)
+			count += 1;
+		else if (!list_empty(&child->mnt_mounts))
+			continue;
+
+		if (do_refcount_check(child, count))
+			return 1;
 	}
-	return ret;
+	return 0;
 }
 
 /*
@@ -383,60 +427,110 @@ void propagate_mount_unlock(struct mount
 
 	for (m = propagation_next(parent, parent); m;
 			m = propagation_next(m, parent)) {
-		child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);
+		child = __lookup_mnt(&m->mnt, mnt->mnt_mountpoint);
 		if (child)
 			child->mnt.mnt_flags &= ~MNT_LOCKED;
 	}
 }
 
+static void umount_one(struct mount *mnt, struct list_head *to_umount)
+{
+	CLEAR_MNT_MARK(mnt);
+	mnt->mnt.mnt_flags |= MNT_UMOUNT;
+	list_del_init(&mnt->mnt_child);
+	list_del_init(&mnt->mnt_umounting);
+	list_move_tail(&mnt->mnt_list, to_umount);
+}
+
 /*
- * Mark all mounts that the MNT_LOCKED logic will allow to be unmounted.
+ * NOTE: unmounting 'mnt' naturally propagates to all other mounts its
+ * parent propagates to.
  */
-static void mark_umount_candidates(struct mount *mnt)
+static bool __propagate_umount(struct mount *mnt,
+			       struct list_head *to_umount,
+			       struct list_head *to_restore)
 {
-	struct mount *parent = mnt->mnt_parent;
-	struct mount *m;
+	bool progress = false;
+	struct mount *child;
 
-	BUG_ON(parent == mnt);
+	/*
+	 * The state of the parent won't change if this mount is
+	 * already unmounted or marked as without children.
+	 */
+	if (mnt->mnt.mnt_flags & (MNT_UMOUNT | MNT_MARKED))
+		goto out;
 
-	for (m = propagation_next(parent, parent); m;
-			m = propagation_next(m, parent)) {
-		struct mount *child = __lookup_mnt_last(&m->mnt,
-						mnt->mnt_mountpoint);
-		if (child && (!IS_MNT_LOCKED(child) || IS_MNT_MARKED(m))) {
-			SET_MNT_MARK(child);
-		}
+	/* Verify topper is the only grandchild that has not been
+	 * speculatively unmounted.
+	 */
+	list_for_each_entry(child, &mnt->mnt_mounts, mnt_child) {
+		if (child->mnt_mountpoint == mnt->mnt.mnt_root)
+			continue;
+		if (!list_empty(&child->mnt_umounting) && IS_MNT_MARKED(child))
+			continue;
+		/* Found a mounted child */
+		goto children;
+	}
+
+	/* Mark mounts that can be unmounted if not locked */
+	SET_MNT_MARK(mnt);
+	progress = true;
+
+	/* If a mount is without children and not locked umount it. */
+	if (!IS_MNT_LOCKED(mnt)) {
+		umount_one(mnt, to_umount);
+	} else {
+children:
+		list_move_tail(&mnt->mnt_umounting, to_restore);
 	}
+out:
+	return progress;
 }
 
-/*
- * NOTE: unmounting 'mnt' naturally propagates to all other mounts its
- * parent propagates to.
- */
-static void __propagate_umount(struct mount *mnt)
+static void umount_list(struct list_head *to_umount,
+			struct list_head *to_restore)
 {
-	struct mount *parent = mnt->mnt_parent;
-	struct mount *m;
+	struct mount *mnt, *child, *tmp;
+	list_for_each_entry(mnt, to_umount, mnt_list) {
+		list_for_each_entry_safe(child, tmp, &mnt->mnt_mounts, mnt_child) {
+			/* topper? */
+			if (child->mnt_mountpoint == mnt->mnt.mnt_root)
+				list_move_tail(&child->mnt_umounting, to_restore);
+			else
+				umount_one(child, to_umount);
+		}
+	}
+}
 
-	BUG_ON(parent == mnt);
+static void restore_mounts(struct list_head *to_restore)
+{
+	/* Restore mounts to a clean working state */
+	while (!list_empty(to_restore)) {
+		struct mount *mnt, *parent;
+		struct mountpoint *mp;
 
-	for (m = propagation_next(parent, parent); m;
-			m = propagation_next(m, parent)) {
+		mnt = list_first_entry(to_restore, struct mount, mnt_umounting);
+		CLEAR_MNT_MARK(mnt);
+		list_del_init(&mnt->mnt_umounting);
 
-		struct mount *child = __lookup_mnt_last(&m->mnt,
-						mnt->mnt_mountpoint);
-		/*
-		 * umount the child only if the child has no children
-		 * and the child is marked safe to unmount.
-		 */
-		if (!child || !IS_MNT_MARKED(child))
-			continue;
-		CLEAR_MNT_MARK(child);
-		if (list_empty(&child->mnt_mounts)) {
-			list_del_init(&child->mnt_child);
-			child->mnt.mnt_flags |= MNT_UMOUNT;
-			list_move_tail(&child->mnt_list, &mnt->mnt_list);
+		/* Should this mount be reparented? */
+		mp = mnt->mnt_mp;
+		parent = mnt->mnt_parent;
+		while (parent->mnt.mnt_flags & MNT_UMOUNT) {
+			mp = parent->mnt_mp;
+			parent = parent->mnt_parent;
 		}
+		if (parent != mnt->mnt_parent)
+			mnt_change_mountpoint(parent, mp, mnt);
+	}
+}
+
+static void cleanup_umount_visitations(struct list_head *visited)
+{
+	while (!list_empty(visited)) {
+		struct mount *mnt =
+			list_first_entry(visited, struct mount, mnt_umounting);
+		list_del_init(&mnt->mnt_umounting);
 	}
 }
 
@@ -450,11 +544,68 @@ static void __propagate_umount(struct mo
 int propagate_umount(struct list_head *list)
 {
 	struct mount *mnt;
+	LIST_HEAD(to_restore);
+	LIST_HEAD(to_umount);
+	LIST_HEAD(visited);
 
-	list_for_each_entry_reverse(mnt, list, mnt_list)
-		mark_umount_candidates(mnt);
+	/* Find candidates for unmounting */
+	list_for_each_entry_reverse(mnt, list, mnt_list) {
+		struct mount *parent = mnt->mnt_parent;
+		struct mount *m;
+
+		/*
+		 * If this mount has already been visited it is known that it's
+		 * entire peer group and all of their slaves in the propagation
+		 * tree for the mountpoint has already been visited and there is
+		 * no need to visit them again.
+		 */
+		if (!list_empty(&mnt->mnt_umounting))
+			continue;
+
+		list_add_tail(&mnt->mnt_umounting, &visited);
+		for (m = propagation_next(parent, parent); m;
+		     m = propagation_next(m, parent)) {
+			struct mount *child = __lookup_mnt(&m->mnt,
+							   mnt->mnt_mountpoint);
+			if (!child)
+				continue;
+
+			if (!list_empty(&child->mnt_umounting)) {
+				/*
+				 * If the child has already been visited it is
+				 * know that it's entire peer group and all of
+				 * their slaves in the propgation tree for the
+				 * mountpoint has already been visited and there
+				 * is no need to visit this subtree again.
+				 */
+				m = skip_propagation_subtree(m, parent);
+				continue;
+			} else if (child->mnt.mnt_flags & MNT_UMOUNT) {
+				/*
+				 * We have come accross an partially unmounted
+				 * mount in list that has not been visited yet.
+				 * Remember it has been visited and continue
+				 * about our merry way.
+				 */
+				list_add_tail(&child->mnt_umounting, &visited);
+				continue;
+			}
+
+			/* Check the child and parents while progress is made */
+			while (__propagate_umount(child,
+						  &to_umount, &to_restore)) {
+				/* Is the parent a umount candidate? */
+				child = child->mnt_parent;
+				if (list_empty(&child->mnt_umounting))
+					break;
+			}
+		}
+	}
+
+	umount_list(&to_umount, &to_restore);
+	restore_mounts(&to_restore);
+	cleanup_umount_visitations(&visited);
+	list_splice_tail(&to_umount, list);
 
-	list_for_each_entry(mnt, list, mnt_list)
-		__propagate_umount(mnt);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/pnode.h linux-libre-4.9.52-gnu/fs/pnode.h
--- linux-libre-4.9-gnu/fs/pnode.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/pnode.h	2017-09-27 08:40:05.000000000 -0400
@@ -49,6 +49,8 @@ int get_dominating_id(struct mount *mnt,
 unsigned int mnt_get_count(struct mount *mnt);
 void mnt_set_mountpoint(struct mount *, struct mountpoint *,
 			struct mount *);
+void mnt_change_mountpoint(struct mount *parent, struct mountpoint *mp,
+			   struct mount *mnt);
 struct mount *copy_tree(struct mount *, struct dentry *, int);
 bool is_path_reachable(struct mount *, struct dentry *,
 			 const struct path *root);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/posix_acl.c linux-libre-4.9.52-gnu/fs/posix_acl.c
--- linux-libre-4.9-gnu/fs/posix_acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/posix_acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -922,11 +922,10 @@ int simple_set_acl(struct inode *inode,
 	int error;
 
 	if (type == ACL_TYPE_ACCESS) {
-		error = posix_acl_equiv_mode(acl, &inode->i_mode);
-		if (error < 0)
-			return 0;
-		if (error == 0)
-			acl = NULL;
+		error = posix_acl_update_mode(inode,
+				&inode->i_mode, &acl);
+		if (error)
+			return error;
 	}
 
 	inode->i_ctime = current_time(inode);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/proc/base.c linux-libre-4.9.52-gnu/fs/proc/base.c
--- linux-libre-4.9-gnu/fs/proc/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/proc/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -3181,6 +3181,8 @@ int proc_pid_readdir(struct file *file,
 	     iter.tgid += 1, iter = next_tgid(ns, iter)) {
 		char name[PROC_NUMBUF];
 		int len;
+
+		cond_resched();
 		if (!has_pid_permissions(ns, iter.task, 2))
 			continue;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/proc/generic.c linux-libre-4.9.52-gnu/fs/proc/generic.c
--- linux-libre-4.9-gnu/fs/proc/generic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/proc/generic.c	2017-09-27 08:40:05.000000000 -0400
@@ -471,6 +471,7 @@ struct proc_dir_entry *proc_create_mount
 		ent->data = NULL;
 		ent->proc_fops = NULL;
 		ent->proc_iops = NULL;
+		parent->nlink++;
 		if (proc_register(parent, ent) < 0) {
 			kfree(ent);
 			parent->nlink--;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/proc/proc_sysctl.c linux-libre-4.9.52-gnu/fs/proc/proc_sysctl.c
--- linux-libre-4.9-gnu/fs/proc/proc_sysctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/proc/proc_sysctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -709,7 +709,7 @@ static int proc_sys_readdir(struct file
 	ctl_dir = container_of(head, struct ctl_dir, header);
 
 	if (!dir_emit_dots(file, ctx))
-		return 0;
+		goto out;
 
 	pos = 2;
 
@@ -719,6 +719,7 @@ static int proc_sys_readdir(struct file
 			break;
 		}
 	}
+out:
 	sysctl_head_finish(head);
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/proc/task_mmu.c linux-libre-4.9.52-gnu/fs/proc/task_mmu.c
--- linux-libre-4.9-gnu/fs/proc/task_mmu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/proc/task_mmu.c	2017-09-27 08:40:05.000000000 -0400
@@ -299,11 +299,7 @@ show_map_vma(struct seq_file *m, struct
 
 	/* We don't show the stack guard page in /proc/maps */
 	start = vma->vm_start;
-	if (stack_guard_page_start(vma, start))
-		start += PAGE_SIZE;
 	end = vma->vm_end;
-	if (stack_guard_page_end(vma, end))
-		end -= PAGE_SIZE;
 
 	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
 	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
@@ -899,7 +895,14 @@ static inline void clear_soft_dirty(stru
 static inline void clear_soft_dirty_pmd(struct vm_area_struct *vma,
 		unsigned long addr, pmd_t *pmdp)
 {
-	pmd_t pmd = pmdp_huge_get_and_clear(vma->vm_mm, addr, pmdp);
+	pmd_t pmd = *pmdp;
+
+	/* See comment in change_huge_pmd() */
+	pmdp_invalidate(vma, addr, pmdp);
+	if (pmd_dirty(*pmdp))
+		pmd = pmd_mkdirty(pmd);
+	if (pmd_young(*pmdp))
+		pmd = pmd_mkyoung(pmd);
 
 	pmd = pmd_wrprotect(pmd);
 	pmd = pmd_clear_soft_dirty(pmd);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/pstore/platform.c linux-libre-4.9.52-gnu/fs/pstore/platform.c
--- linux-libre-4.9-gnu/fs/pstore/platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/pstore/platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -704,6 +704,7 @@ int pstore_register(struct pstore_info *
 	if (psi->flags & PSTORE_FLAGS_PMSG)
 		pstore_register_pmsg();
 
+	/* Start watching for new records, if desired. */
 	if (pstore_update_ms >= 0) {
 		pstore_timer.expires = jiffies +
 			msecs_to_jiffies(pstore_update_ms);
@@ -726,6 +727,11 @@ EXPORT_SYMBOL_GPL(pstore_register);
 
 void pstore_unregister(struct pstore_info *psi)
 {
+	/* Stop timer and make sure all work has finished. */
+	pstore_update_ms = -1;
+	del_timer_sync(&pstore_timer);
+	flush_work(&pstore_work);
+
 	if (psi->flags & PSTORE_FLAGS_PMSG)
 		pstore_unregister_pmsg();
 	if (psi->flags & PSTORE_FLAGS_FTRACE)
@@ -825,7 +831,9 @@ static void pstore_timefunc(unsigned lon
 		schedule_work(&pstore_work);
 	}
 
-	mod_timer(&pstore_timer, jiffies + msecs_to_jiffies(pstore_update_ms));
+	if (pstore_update_ms >= 0)
+		mod_timer(&pstore_timer,
+			  jiffies + msecs_to_jiffies(pstore_update_ms));
 }
 
 module_param(backend, charp, 0444);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/pstore/ram.c linux-libre-4.9.52-gnu/fs/pstore/ram.c
--- linux-libre-4.9-gnu/fs/pstore/ram.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/pstore/ram.c	2017-09-27 08:40:05.000000000 -0400
@@ -434,7 +434,7 @@ static int ramoops_init_przs(struct devi
 	for (i = 0; i < cxt->max_dump_cnt; i++) {
 		cxt->przs[i] = persistent_ram_new(*paddr, cxt->record_size, 0,
 						  &cxt->ecc_info,
-						  cxt->memtype);
+						  cxt->memtype, 0);
 		if (IS_ERR(cxt->przs[i])) {
 			err = PTR_ERR(cxt->przs[i]);
 			dev_err(dev, "failed to request mem region (0x%zx@0x%llx): %d\n",
@@ -471,7 +471,8 @@ static int ramoops_init_prz(struct devic
 		return -ENOMEM;
 	}
 
-	*prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info, cxt->memtype);
+	*prz = persistent_ram_new(*paddr, sz, sig, &cxt->ecc_info,
+				  cxt->memtype, 0);
 	if (IS_ERR(*prz)) {
 		int err = PTR_ERR(*prz);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/pstore/ram_core.c linux-libre-4.9.52-gnu/fs/pstore/ram_core.c
--- linux-libre-4.9-gnu/fs/pstore/ram_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/pstore/ram_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,16 +48,15 @@ static inline size_t buffer_start(struct
 	return atomic_read(&prz->buffer->start);
 }
 
-static DEFINE_RAW_SPINLOCK(buffer_lock);
-
 /* increase and wrap the start pointer, returning the old value */
 static size_t buffer_start_add(struct persistent_ram_zone *prz, size_t a)
 {
 	int old;
 	int new;
-	unsigned long flags;
+	unsigned long flags = 0;
 
-	raw_spin_lock_irqsave(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_lock_irqsave(&prz->buffer_lock, flags);
 
 	old = atomic_read(&prz->buffer->start);
 	new = old + a;
@@ -65,7 +64,8 @@ static size_t buffer_start_add(struct pe
 		new -= prz->buffer_size;
 	atomic_set(&prz->buffer->start, new);
 
-	raw_spin_unlock_irqrestore(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_unlock_irqrestore(&prz->buffer_lock, flags);
 
 	return old;
 }
@@ -75,9 +75,10 @@ static void buffer_size_add(struct persi
 {
 	size_t old;
 	size_t new;
-	unsigned long flags;
+	unsigned long flags = 0;
 
-	raw_spin_lock_irqsave(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_lock_irqsave(&prz->buffer_lock, flags);
 
 	old = atomic_read(&prz->buffer->size);
 	if (old == prz->buffer_size)
@@ -89,7 +90,8 @@ static void buffer_size_add(struct persi
 	atomic_set(&prz->buffer->size, new);
 
 exit:
-	raw_spin_unlock_irqrestore(&buffer_lock, flags);
+	if (!(prz->flags & PRZ_FLAG_NO_LOCK))
+		raw_spin_unlock_irqrestore(&prz->buffer_lock, flags);
 }
 
 static void notrace persistent_ram_encode_rs8(struct persistent_ram_zone *prz,
@@ -491,6 +493,7 @@ static int persistent_ram_post_init(stru
 			 prz->buffer->sig);
 	}
 
+	/* Rewind missing or invalid memory area. */
 	prz->buffer->sig = sig;
 	persistent_ram_zap(prz);
 
@@ -517,7 +520,7 @@ void persistent_ram_free(struct persiste
 
 struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
 			u32 sig, struct persistent_ram_ecc_info *ecc_info,
-			unsigned int memtype)
+			unsigned int memtype, u32 flags)
 {
 	struct persistent_ram_zone *prz;
 	int ret = -ENOMEM;
@@ -528,6 +531,10 @@ struct persistent_ram_zone *persistent_r
 		goto err;
 	}
 
+	/* Initialize general buffer state. */
+	raw_spin_lock_init(&prz->buffer_lock);
+	prz->flags = flags;
+
 	ret = persistent_ram_buffer_map(start, size, prz, memtype);
 	if (ret)
 		goto err;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/read_write.c linux-libre-4.9.52-gnu/fs/read_write.c
--- linux-libre-4.9-gnu/fs/read_write.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/read_write.c	2017-09-27 08:40:05.000000000 -0400
@@ -1232,7 +1232,7 @@ static size_t compat_writev(struct file
 	if (!(file->f_mode & FMODE_CAN_WRITE))
 		goto out;
 
-	ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos, 0);
+	ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos, flags);
 
 out:
 	if (ret > 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/reiserfs/file.c linux-libre-4.9.52-gnu/fs/reiserfs/file.c
--- linux-libre-4.9-gnu/fs/reiserfs/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/reiserfs/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -189,7 +189,7 @@ int reiserfs_commit_page(struct inode *i
 	int ret = 0;
 
 	th.t_trans_id = 0;
-	blocksize = 1 << inode->i_blkbits;
+	blocksize = i_blocksize(inode);
 
 	if (logit) {
 		reiserfs_write_lock(s);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/reiserfs/inode.c linux-libre-4.9.52-gnu/fs/reiserfs/inode.c
--- linux-libre-4.9-gnu/fs/reiserfs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/reiserfs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -524,7 +524,7 @@ static int reiserfs_get_blocks_direct_io
 	 * referenced in convert_tail_for_hole() that may be called from
 	 * reiserfs_get_block()
 	 */
-	bh_result->b_size = (1 << inode->i_blkbits);
+	bh_result->b_size = i_blocksize(inode);
 
 	ret = reiserfs_get_block(inode, iblock, bh_result,
 				 create | GET_BLOCK_NO_DANGLE);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/reiserfs/xattr_acl.c linux-libre-4.9.52-gnu/fs/reiserfs/xattr_acl.c
--- linux-libre-4.9-gnu/fs/reiserfs/xattr_acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/reiserfs/xattr_acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,7 +37,14 @@ reiserfs_set_acl(struct inode *inode, st
 	error = journal_begin(&th, inode->i_sb, jcreate_blocks);
 	reiserfs_write_unlock(inode->i_sb);
 	if (error == 0) {
+		if (type == ACL_TYPE_ACCESS && acl) {
+			error = posix_acl_update_mode(inode, &inode->i_mode,
+						      &acl);
+			if (error)
+				goto unlock;
+		}
 		error = __reiserfs_set_acl(&th, inode, type, acl);
+unlock:
 		reiserfs_write_lock(inode->i_sb);
 		error2 = journal_end(&th);
 		reiserfs_write_unlock(inode->i_sb);
@@ -241,11 +248,6 @@ __reiserfs_set_acl(struct reiserfs_trans
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			error = posix_acl_update_mode(inode, &inode->i_mode, &acl);
-			if (error)
-				return error;
-		}
 		break;
 	case ACL_TYPE_DEFAULT:
 		name = XATTR_NAME_POSIX_ACL_DEFAULT;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/romfs/super.c linux-libre-4.9.52-gnu/fs/romfs/super.c
--- linux-libre-4.9-gnu/fs/romfs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/romfs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -74,6 +74,7 @@
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
 #include <linux/uaccess.h>
+#include <linux/major.h>
 #include "internal.h"
 
 static struct kmem_cache *romfs_inode_cachep;
@@ -416,7 +417,22 @@ static void romfs_destroy_inode(struct i
 static int romfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct super_block *sb = dentry->d_sb;
-	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+	u64 id = 0;
+
+	/* When calling huge_encode_dev(),
+	 * use sb->s_bdev->bd_dev when,
+	 *   - CONFIG_ROMFS_ON_BLOCK defined
+	 * use sb->s_dev when,
+	 *   - CONFIG_ROMFS_ON_BLOCK undefined and
+	 *   - CONFIG_ROMFS_ON_MTD defined
+	 * leave id as 0 when,
+	 *   - CONFIG_ROMFS_ON_BLOCK undefined and
+	 *   - CONFIG_ROMFS_ON_MTD undefined
+	 */
+	if (sb->s_bdev)
+		id = huge_encode_dev(sb->s_bdev->bd_dev);
+	else if (sb->s_dev)
+		id = huge_encode_dev(sb->s_dev);
 
 	buf->f_type = ROMFS_MAGIC;
 	buf->f_namelen = ROMFS_MAXFN;
@@ -489,6 +505,11 @@ static int romfs_fill_super(struct super
 	sb->s_flags |= MS_RDONLY | MS_NOATIME;
 	sb->s_op = &romfs_super_ops;
 
+#ifdef CONFIG_ROMFS_ON_MTD
+	/* Use same dev ID from the underlying mtdblock device */
+	if (sb->s_mtd)
+		sb->s_dev = MKDEV(MTD_BLOCK_MAJOR, sb->s_mtd->index);
+#endif
 	/* read the image superblock and check it */
 	rsb = kmalloc(512, GFP_KERNEL);
 	if (!rsb)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/splice.c linux-libre-4.9.52-gnu/fs/splice.c
--- linux-libre-4.9-gnu/fs/splice.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/splice.c	2017-09-27 08:40:05.000000000 -0400
@@ -203,6 +203,7 @@ ssize_t splice_to_pipe(struct pipe_inode
 		buf->len = spd->partial[page_nr].len;
 		buf->private = spd->partial[page_nr].private;
 		buf->ops = spd->ops;
+		buf->flags = 0;
 
 		pipe->nrbufs++;
 		page_nr++;
@@ -1086,7 +1087,13 @@ EXPORT_SYMBOL(do_splice_direct);
 
 static int wait_for_space(struct pipe_inode_info *pipe, unsigned flags)
 {
-	while (pipe->nrbufs == pipe->buffers) {
+	for (;;) {
+		if (unlikely(!pipe->readers)) {
+			send_sig(SIGPIPE, current, 0);
+			return -EPIPE;
+		}
+		if (pipe->nrbufs != pipe->buffers)
+			return 0;
 		if (flags & SPLICE_F_NONBLOCK)
 			return -EAGAIN;
 		if (signal_pending(current))
@@ -1095,7 +1102,6 @@ static int wait_for_space(struct pipe_in
 		pipe_wait(pipe);
 		pipe->waiting_writers--;
 	}
-	return 0;
 }
 
 static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/stat.c linux-libre-4.9.52-gnu/fs/stat.c
--- linux-libre-4.9-gnu/fs/stat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/stat.c	2017-09-27 08:40:05.000000000 -0400
@@ -31,7 +31,7 @@ void generic_fillattr(struct inode *inod
 	stat->atime = inode->i_atime;
 	stat->mtime = inode->i_mtime;
 	stat->ctime = inode->i_ctime;
-	stat->blksize = (1 << inode->i_blkbits);
+	stat->blksize = i_blocksize(inode);
 	stat->blocks = inode->i_blocks;
 }
 
@@ -454,6 +454,7 @@ void __inode_add_bytes(struct inode *ino
 		inode->i_bytes -= 512;
 	}
 }
+EXPORT_SYMBOL(__inode_add_bytes);
 
 void inode_add_bytes(struct inode *inode, loff_t bytes)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/super.c linux-libre-4.9.52-gnu/fs/super.c
--- linux-libre-4.9-gnu/fs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -470,7 +470,7 @@ struct super_block *sget_userns(struct f
 	struct super_block *old;
 	int err;
 
-	if (!(flags & MS_KERNMOUNT) &&
+	if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) &&
 	    !(type->fs_flags & FS_USERNS_MOUNT) &&
 	    !capable(CAP_SYS_ADMIN))
 		return ERR_PTR(-EPERM);
@@ -500,7 +500,7 @@ retry:
 	}
 	if (!s) {
 		spin_unlock(&sb_lock);
-		s = alloc_super(type, flags, user_ns);
+		s = alloc_super(type, (flags & ~MS_SUBMOUNT), user_ns);
 		if (!s)
 			return ERR_PTR(-ENOMEM);
 		goto retry;
@@ -541,8 +541,15 @@ struct super_block *sget(struct file_sys
 {
 	struct user_namespace *user_ns = current_user_ns();
 
+	/* We don't yet pass the user namespace of the parent
+	 * mount through to here so always use &init_user_ns
+	 * until that changes.
+	 */
+	if (flags & MS_SUBMOUNT)
+		user_ns = &init_user_ns;
+
 	/* Ensure the requestor has permissions over the target filesystem */
-	if (!(flags & MS_KERNMOUNT) && !ns_capable(user_ns, CAP_SYS_ADMIN))
+	if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) && !ns_capable(user_ns, CAP_SYS_ADMIN))
 		return ERR_PTR(-EPERM);
 
 	return sget_userns(type, test, set, flags, user_ns, data);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/sysfs/file.c linux-libre-4.9.52-gnu/fs/sysfs/file.c
--- linux-libre-4.9-gnu/fs/sysfs/file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/sysfs/file.c	2017-09-27 08:40:05.000000000 -0400
@@ -108,7 +108,7 @@ static ssize_t sysfs_kf_read(struct kern
 {
 	const struct sysfs_ops *ops = sysfs_file_ops(of->kn);
 	struct kobject *kobj = of->kn->parent->priv;
-	size_t len;
+	ssize_t len;
 
 	/*
 	 * If buf != of->prealloc_buf, we don't know how
@@ -117,13 +117,15 @@ static ssize_t sysfs_kf_read(struct kern
 	if (WARN_ON_ONCE(buf != of->prealloc_buf))
 		return 0;
 	len = ops->show(kobj, of->kn->priv, buf);
+	if (len < 0)
+		return len;
 	if (pos) {
 		if (len <= pos)
 			return 0;
 		len -= pos;
 		memmove(buf, buf + pos, len);
 	}
-	return min(count, len);
+	return min_t(ssize_t, count, len);
 }
 
 /* kernfs write callback for regular sysfs files */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/timerfd.c linux-libre-4.9.52-gnu/fs/timerfd.c
--- linux-libre-4.9-gnu/fs/timerfd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/timerfd.c	2017-09-27 08:40:05.000000000 -0400
@@ -40,6 +40,7 @@ struct timerfd_ctx {
 	short unsigned settime_flags;	/* to show in fdinfo */
 	struct rcu_head rcu;
 	struct list_head clist;
+	spinlock_t cancel_lock;
 	bool might_cancel;
 };
 
@@ -112,7 +113,7 @@ void timerfd_clock_was_set(void)
 	rcu_read_unlock();
 }
 
-static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
+static void __timerfd_remove_cancel(struct timerfd_ctx *ctx)
 {
 	if (ctx->might_cancel) {
 		ctx->might_cancel = false;
@@ -122,6 +123,13 @@ static void timerfd_remove_cancel(struct
 	}
 }
 
+static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
+{
+	spin_lock(&ctx->cancel_lock);
+	__timerfd_remove_cancel(ctx);
+	spin_unlock(&ctx->cancel_lock);
+}
+
 static bool timerfd_canceled(struct timerfd_ctx *ctx)
 {
 	if (!ctx->might_cancel || ctx->moffs.tv64 != KTIME_MAX)
@@ -132,6 +140,7 @@ static bool timerfd_canceled(struct time
 
 static void timerfd_setup_cancel(struct timerfd_ctx *ctx, int flags)
 {
+	spin_lock(&ctx->cancel_lock);
 	if ((ctx->clockid == CLOCK_REALTIME ||
 	     ctx->clockid == CLOCK_REALTIME_ALARM) &&
 	    (flags & TFD_TIMER_ABSTIME) && (flags & TFD_TIMER_CANCEL_ON_SET)) {
@@ -141,9 +150,10 @@ static void timerfd_setup_cancel(struct
 			list_add_rcu(&ctx->clist, &cancel_list);
 			spin_unlock(&cancel_lock);
 		}
-	} else if (ctx->might_cancel) {
-		timerfd_remove_cancel(ctx);
+	} else {
+		__timerfd_remove_cancel(ctx);
 	}
+	spin_unlock(&ctx->cancel_lock);
 }
 
 static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
@@ -400,6 +410,7 @@ SYSCALL_DEFINE2(timerfd_create, int, clo
 		return -ENOMEM;
 
 	init_waitqueue_head(&ctx->wqh);
+	spin_lock_init(&ctx->cancel_lock);
 	ctx->clockid = clockid;
 
 	if (isalarm(ctx))
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ubifs/dir.c linux-libre-4.9.52-gnu/fs/ubifs/dir.c
--- linux-libre-4.9-gnu/fs/ubifs/dir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ubifs/dir.c	2017-09-27 08:40:05.000000000 -0400
@@ -622,6 +622,11 @@ static int ubifs_link(struct dentry *old
 		return err;
 
 	lock_2_inodes(dir, inode);
+
+	/* Handle O_TMPFILE corner case, it is allowed to link a O_TMPFILE. */
+	if (inode->i_nlink == 0)
+		ubifs_delete_orphan(c, inode->i_ino);
+
 	inc_nlink(inode);
 	ihold(inode);
 	inode->i_ctime = ubifs_current_time(inode);
@@ -641,6 +646,8 @@ out_cancel:
 	dir->i_size -= sz_change;
 	dir_ui->ui_size = dir->i_size;
 	drop_nlink(inode);
+	if (inode->i_nlink == 0)
+		ubifs_add_orphan(c, inode->i_ino);
 	unlock_2_inodes(dir, inode);
 	ubifs_release_budget(c, &req);
 	iput(inode);
@@ -1088,9 +1095,6 @@ static int do_rename(struct inode *old_d
 	struct timespec time;
 	unsigned int uninitialized_var(saved_nlink);
 
-	if (flags & ~RENAME_NOREPLACE)
-		return -EINVAL;
-
 	/*
 	 * Budget request settings: deletion direntry, new direntry, removing
 	 * the old inode, and changing old and new parent directory inodes.
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ubifs/journal.c linux-libre-4.9.52-gnu/fs/ubifs/journal.c
--- linux-libre-4.9-gnu/fs/ubifs/journal.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ubifs/journal.c	2017-09-27 08:40:05.000000000 -0400
@@ -576,7 +576,7 @@ int ubifs_jnl_update(struct ubifs_info *
 	/* Make sure to also account for extended attributes */
 	len += host_ui->data_len;
 
-	dent = kmalloc(len, GFP_NOFS);
+	dent = kzalloc(len, GFP_NOFS);
 	if (!dent)
 		return -ENOMEM;
 
@@ -952,7 +952,7 @@ int ubifs_jnl_xrename(struct ubifs_info
 	if (twoparents)
 		len += plen;
 
-	dent1 = kmalloc(len, GFP_NOFS);
+	dent1 = kzalloc(len, GFP_NOFS);
 	if (!dent1)
 		return -ENOMEM;
 
@@ -1102,7 +1102,7 @@ int ubifs_jnl_rename(struct ubifs_info *
 	len = aligned_dlen1 + aligned_dlen2 + ALIGN(ilen, 8) + ALIGN(plen, 8);
 	if (move)
 		len += plen;
-	dent = kmalloc(len, GFP_NOFS);
+	dent = kzalloc(len, GFP_NOFS);
 	if (!dent)
 		return -ENOMEM;
 
@@ -1466,7 +1466,7 @@ int ubifs_jnl_delete_xattr(struct ubifs_
 	hlen = host_ui->data_len + UBIFS_INO_NODE_SZ;
 	len = aligned_xlen + UBIFS_INO_NODE_SZ + ALIGN(hlen, 8);
 
-	xent = kmalloc(len, GFP_NOFS);
+	xent = kzalloc(len, GFP_NOFS);
 	if (!xent)
 		return -ENOMEM;
 
@@ -1573,7 +1573,7 @@ int ubifs_jnl_change_xattr(struct ubifs_
 	aligned_len1 = ALIGN(len1, 8);
 	aligned_len = aligned_len1 + ALIGN(len2, 8);
 
-	ino = kmalloc(aligned_len, GFP_NOFS);
+	ino = kzalloc(aligned_len, GFP_NOFS);
 	if (!ino)
 		return -ENOMEM;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ubifs/tnc.c linux-libre-4.9.52-gnu/fs/ubifs/tnc.c
--- linux-libre-4.9-gnu/fs/ubifs/tnc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ubifs/tnc.c	2017-09-27 08:40:05.000000000 -0400
@@ -34,6 +34,11 @@
 #include <linux/slab.h>
 #include "ubifs.h"
 
+static int try_read_node(const struct ubifs_info *c, void *buf, int type,
+			 int len, int lnum, int offs);
+static int fallible_read_node(struct ubifs_info *c, const union ubifs_key *key,
+			      struct ubifs_zbranch *zbr, void *node);
+
 /*
  * Returned codes of 'matches_name()' and 'fallible_matches_name()' functions.
  * @NAME_LESS: name corresponding to the first argument is less than second
@@ -402,7 +407,19 @@ static int tnc_read_node_nm(struct ubifs
 		return 0;
 	}
 
-	err = ubifs_tnc_read_node(c, zbr, node);
+	if (c->replaying) {
+		err = fallible_read_node(c, &zbr->key, zbr, node);
+		/*
+		 * When the node was not found, return -ENOENT, 0 otherwise.
+		 * Negative return codes stay as-is.
+		 */
+		if (err == 0)
+			err = -ENOENT;
+		else if (err == 1)
+			err = 0;
+	} else {
+		err = ubifs_tnc_read_node(c, zbr, node);
+	}
 	if (err)
 		return err;
 
@@ -2766,7 +2783,11 @@ struct ubifs_dent_node *ubifs_tnc_next_e
 	if (nm->name) {
 		if (err) {
 			/* Handle collisions */
-			err = resolve_collision(c, key, &znode, &n, nm);
+			if (c->replaying)
+				err = fallible_resolve_collision(c, key, &znode, &n,
+							 nm, 0);
+			else
+				err = resolve_collision(c, key, &znode, &n, nm);
 			dbg_tnc("rc returned %d, znode %p, n %d",
 				err, znode, n);
 			if (unlikely(err < 0))
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/udf/inode.c linux-libre-4.9.52-gnu/fs/udf/inode.c
--- linux-libre-4.9-gnu/fs/udf/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/udf/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -1214,7 +1214,7 @@ int udf_setsize(struct inode *inode, lof
 {
 	int err;
 	struct udf_inode_info *iinfo;
-	int bsize = 1 << inode->i_blkbits;
+	int bsize = i_blocksize(inode);
 
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
 	      S_ISLNK(inode->i_mode)))
@@ -1243,8 +1243,8 @@ int udf_setsize(struct inode *inode, lof
 			return err;
 		}
 set_size:
-		truncate_setsize(inode, newsize);
 		up_write(&iinfo->i_data_sem);
+		truncate_setsize(inode, newsize);
 	} else {
 		if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
 			down_write(&iinfo->i_data_sem);
@@ -1261,9 +1261,9 @@ set_size:
 					  udf_get_block);
 		if (err)
 			return err;
+		truncate_setsize(inode, newsize);
 		down_write(&iinfo->i_data_sem);
 		udf_clear_extent_cache(inode);
-		truncate_setsize(inode, newsize);
 		udf_truncate_extents(inode);
 		up_write(&iinfo->i_data_sem);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ufs/balloc.c linux-libre-4.9.52-gnu/fs/ufs/balloc.c
--- linux-libre-4.9-gnu/fs/ufs/balloc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ufs/balloc.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,7 +81,8 @@ void ufs_free_fragments(struct inode *in
 			ufs_error (sb, "ufs_free_fragments",
 				   "bit already cleared for fragment %u", i);
 	}
-	
+
+	inode_sub_bytes(inode, count << uspi->s_fshift);
 	fs32_add(sb, &ucg->cg_cs.cs_nffree, count);
 	uspi->cs_total.cs_nffree += count;
 	fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count);
@@ -183,6 +184,7 @@ do_more:
 			ufs_error(sb, "ufs_free_blocks", "freeing free fragment");
 		}
 		ubh_setblock(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
+		inode_sub_bytes(inode, uspi->s_fpb << uspi->s_fshift);
 		if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
 			ufs_clusteracct (sb, ucpi, blkno, 1);
 
@@ -494,6 +496,20 @@ u64 ufs_new_fragments(struct inode *inod
 	return 0;
 }		
 
+static bool try_add_frags(struct inode *inode, unsigned frags)
+{
+	unsigned size = frags * i_blocksize(inode);
+	spin_lock(&inode->i_lock);
+	__inode_add_bytes(inode, size);
+	if (unlikely((u32)inode->i_blocks != inode->i_blocks)) {
+		__inode_sub_bytes(inode, size);
+		spin_unlock(&inode->i_lock);
+		return false;
+	}
+	spin_unlock(&inode->i_lock);
+	return true;
+}
+
 static u64 ufs_add_fragments(struct inode *inode, u64 fragment,
 			     unsigned oldcount, unsigned newcount)
 {
@@ -530,6 +546,9 @@ static u64 ufs_add_fragments(struct inod
 	for (i = oldcount; i < newcount; i++)
 		if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i))
 			return 0;
+
+	if (!try_add_frags(inode, count))
+		return 0;
 	/*
 	 * Block can be extended
 	 */
@@ -647,6 +666,7 @@ cg_found:
 			ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, goal + i);
 		i = uspi->s_fpb - count;
 
+		inode_sub_bytes(inode, i << uspi->s_fshift);
 		fs32_add(sb, &ucg->cg_cs.cs_nffree, i);
 		uspi->cs_total.cs_nffree += i;
 		fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, i);
@@ -657,6 +677,8 @@ cg_found:
 	result = ufs_bitmap_search (sb, ucpi, goal, allocsize);
 	if (result == INVBLOCK)
 		return 0;
+	if (!try_add_frags(inode, count))
+		return 0;
 	for (i = 0; i < count; i++)
 		ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, result + i);
 	
@@ -716,6 +738,8 @@ norot:
 		return INVBLOCK;
 	ucpi->c_rotor = result;
 gotit:
+	if (!try_add_frags(inode, uspi->s_fpb))
+		return 0;
 	blkno = ufs_fragstoblks(result);
 	ubh_clrblock (UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
 	if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ufs/inode.c linux-libre-4.9.52-gnu/fs/ufs/inode.c
--- linux-libre-4.9-gnu/fs/ufs/inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ufs/inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -235,7 +235,8 @@ ufs_extend_tail(struct inode *inode, u64
 
 	p = ufs_get_direct_data_ptr(uspi, ufsi, block);
 	tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),
-				new_size, err, locked_page);
+				new_size - (lastfrag & uspi->s_fpbmask), err,
+				locked_page);
 	return tmp != 0;
 }
 
@@ -284,7 +285,7 @@ ufs_inode_getfrag(struct inode *inode, u
 			goal += uspi->s_fpb;
 	}
 	tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),
-				goal, uspi->s_fpb, err, locked_page);
+				goal, nfrags, err, locked_page);
 
 	if (!tmp) {
 		*err = -ENOSPC;
@@ -402,7 +403,9 @@ static int ufs_getfrag_block(struct inod
 
 	if (!create) {
 		phys64 = ufs_frag_map(inode, offsets, depth);
-		goto out;
+		if (phys64)
+			map_bh(bh_result, sb, phys64 + frag);
+		return 0;
 	}
 
         /* This code entered only while writing ....? */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ufs/super.c linux-libre-4.9.52-gnu/fs/ufs/super.c
--- linux-libre-4.9-gnu/fs/ufs/super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ufs/super.c	2017-09-27 08:40:05.000000000 -0400
@@ -746,6 +746,23 @@ static void ufs_put_super(struct super_b
 	return;
 }
 
+static u64 ufs_max_bytes(struct super_block *sb)
+{
+	struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
+	int bits = uspi->s_apbshift;
+	u64 res;
+
+	if (bits > 21)
+		res = ~0ULL;
+	else
+		res = UFS_NDADDR + (1LL << bits) + (1LL << (2*bits)) +
+			(1LL << (3*bits));
+
+	if (res >= (MAX_LFS_FILESIZE >> uspi->s_bshift))
+		return MAX_LFS_FILESIZE;
+	return res << uspi->s_bshift;
+}
+
 static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct ufs_sb_info * sbi;
@@ -812,9 +829,8 @@ static int ufs_fill_super(struct super_b
 	uspi->s_dirblksize = UFS_SECTOR_SIZE;
 	super_block_offset=UFS_SBLOCK;
 
-	/* Keep 2Gig file limit. Some UFS variants need to override 
-	   this but as I don't know which I'll let those in the know loosen
-	   the rules */
+	sb->s_maxbytes = MAX_LFS_FILESIZE;
+
 	switch (sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) {
 	case UFS_MOUNT_UFSTYPE_44BSD:
 		UFSD("ufstype=44bsd\n");
@@ -1212,6 +1228,7 @@ magic_found:
 			    "fast symlink size (%u)\n", uspi->s_maxsymlinklen);
 		uspi->s_maxsymlinklen = maxsymlen;
 	}
+	sb->s_maxbytes = ufs_max_bytes(sb);
 	sb->s_max_links = UFS_LINK_MAX;
 
 	inode = ufs_iget(sb, UFS_ROOTINO);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/ufs/util.h linux-libre-4.9.52-gnu/fs/ufs/util.h
--- linux-libre-4.9-gnu/fs/ufs/util.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/ufs/util.h	2017-09-27 08:40:05.000000000 -0400
@@ -473,15 +473,19 @@ static inline unsigned _ubh_find_last_ze
 static inline int _ubh_isblockset_(struct ufs_sb_private_info * uspi,
 	struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
 {
+	u8 mask;
 	switch (uspi->s_fpb) {
 	case 8:
 	    	return (*ubh_get_addr (ubh, begin + block) == 0xff);
 	case 4:
-		return (*ubh_get_addr (ubh, begin + (block >> 1)) == (0x0f << ((block & 0x01) << 2)));
+		mask = 0x0f << ((block & 0x01) << 2);
+		return (*ubh_get_addr (ubh, begin + (block >> 1)) & mask) == mask;
 	case 2:
-		return (*ubh_get_addr (ubh, begin + (block >> 2)) == (0x03 << ((block & 0x03) << 1)));
+		mask = 0x03 << ((block & 0x03) << 1);
+		return (*ubh_get_addr (ubh, begin + (block >> 2)) & mask) == mask;
 	case 1:
-		return (*ubh_get_addr (ubh, begin + (block >> 3)) == (0x01 << (block & 0x07)));
+		mask = 0x01 << (block & 0x07);
+		return (*ubh_get_addr (ubh, begin + (block >> 3)) & mask) == mask;
 	}
 	return 0;	
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/userfaultfd.c linux-libre-4.9.52-gnu/fs/userfaultfd.c
--- linux-libre-4.9-gnu/fs/userfaultfd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/userfaultfd.c	2017-09-27 08:40:05.000000000 -0400
@@ -63,6 +63,7 @@ struct userfaultfd_wait_queue {
 	struct uffd_msg msg;
 	wait_queue_t wq;
 	struct userfaultfd_ctx *ctx;
+	bool waken;
 };
 
 struct userfaultfd_wake_range {
@@ -86,6 +87,12 @@ static int userfaultfd_wake_function(wai
 	if (len && (start > uwq->msg.arg.pagefault.address ||
 		    start + len <= uwq->msg.arg.pagefault.address))
 		goto out;
+	WRITE_ONCE(uwq->waken, true);
+	/*
+	 * The implicit smp_mb__before_spinlock in try_to_wake_up()
+	 * renders uwq->waken visible to other CPUs before the task is
+	 * waken.
+	 */
 	ret = wake_up_state(wq->private, mode);
 	if (ret)
 		/*
@@ -264,6 +271,7 @@ int handle_userfault(struct fault_env *f
 	struct userfaultfd_wait_queue uwq;
 	int ret;
 	bool must_wait, return_to_userland;
+	long blocking_state;
 
 	BUG_ON(!rwsem_is_locked(&mm->mmap_sem));
 
@@ -333,10 +341,13 @@ int handle_userfault(struct fault_env *f
 	uwq.wq.private = current;
 	uwq.msg = userfault_msg(fe->address, fe->flags, reason);
 	uwq.ctx = ctx;
+	uwq.waken = false;
 
 	return_to_userland =
 		(fe->flags & (FAULT_FLAG_USER|FAULT_FLAG_KILLABLE)) ==
 		(FAULT_FLAG_USER|FAULT_FLAG_KILLABLE);
+	blocking_state = return_to_userland ? TASK_INTERRUPTIBLE :
+			 TASK_KILLABLE;
 
 	spin_lock(&ctx->fault_pending_wqh.lock);
 	/*
@@ -349,8 +360,7 @@ int handle_userfault(struct fault_env *f
 	 * following the spin_unlock to happen before the list_add in
 	 * __add_wait_queue.
 	 */
-	set_current_state(return_to_userland ? TASK_INTERRUPTIBLE :
-			  TASK_KILLABLE);
+	set_current_state(blocking_state);
 	spin_unlock(&ctx->fault_pending_wqh.lock);
 
 	must_wait = userfaultfd_must_wait(ctx, fe->address, fe->flags, reason);
@@ -362,6 +372,29 @@ int handle_userfault(struct fault_env *f
 		wake_up_poll(&ctx->fd_wqh, POLLIN);
 		schedule();
 		ret |= VM_FAULT_MAJOR;
+
+		/*
+		 * False wakeups can orginate even from rwsem before
+		 * up_read() however userfaults will wait either for a
+		 * targeted wakeup on the specific uwq waitqueue from
+		 * wake_userfault() or for signals or for uffd
+		 * release.
+		 */
+		while (!READ_ONCE(uwq.waken)) {
+			/*
+			 * This needs the full smp_store_mb()
+			 * guarantee as the state write must be
+			 * visible to other CPUs before reading
+			 * uwq.waken from other CPUs.
+			 */
+			set_current_state(blocking_state);
+			if (READ_ONCE(uwq.waken) ||
+			    READ_ONCE(ctx->released) ||
+			    (return_to_userland ? signal_pending(current) :
+			     fatal_signal_pending(current)))
+				break;
+			schedule();
+		}
 	}
 
 	__set_current_state(TASK_RUNNING);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xattr.c linux-libre-4.9.52-gnu/fs/xattr.c
--- linux-libre-4.9-gnu/fs/xattr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xattr.c	2017-09-27 08:40:05.000000000 -0400
@@ -530,7 +530,7 @@ getxattr(struct dentry *d, const char __
 			size = XATTR_SIZE_MAX;
 		kvalue = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 		if (!kvalue) {
-			kvalue = vmalloc(size);
+			kvalue = vzalloc(size);
 			if (!kvalue)
 				return -ENOMEM;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ag_resv.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ag_resv.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ag_resv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ag_resv.c	2017-09-27 08:40:05.000000000 -0400
@@ -39,6 +39,7 @@
 #include "xfs_rmap_btree.h"
 #include "xfs_btree.h"
 #include "xfs_refcount_btree.h"
+#include "xfs_ialloc_btree.h"
 
 /*
  * Per-AG Block Reservations
@@ -200,22 +201,30 @@ __xfs_ag_resv_init(
 	struct xfs_mount		*mp = pag->pag_mount;
 	struct xfs_ag_resv		*resv;
 	int				error;
+	xfs_extlen_t			reserved;
 
-	resv = xfs_perag_resv(pag, type);
 	if (used > ask)
 		ask = used;
-	resv->ar_asked = ask;
-	resv->ar_reserved = resv->ar_orig_reserved = ask - used;
-	mp->m_ag_max_usable -= ask;
-
-	trace_xfs_ag_resv_init(pag, type, ask);
+	reserved = ask - used;
 
-	error = xfs_mod_fdblocks(mp, -(int64_t)resv->ar_reserved, true);
-	if (error)
+	error = xfs_mod_fdblocks(mp, -(int64_t)reserved, true);
+	if (error) {
 		trace_xfs_ag_resv_init_error(pag->pag_mount, pag->pag_agno,
 				error, _RET_IP_);
+		xfs_warn(mp,
+"Per-AG reservation for AG %u failed.  Filesystem may run out of space.",
+				pag->pag_agno);
+		return error;
+	}
 
-	return error;
+	mp->m_ag_max_usable -= ask;
+
+	resv = xfs_perag_resv(pag, type);
+	resv->ar_asked = ask;
+	resv->ar_reserved = resv->ar_orig_reserved = reserved;
+
+	trace_xfs_ag_resv_init(pag, type, ask);
+	return 0;
 }
 
 /* Create a per-AG block reservation. */
@@ -223,6 +232,8 @@ int
 xfs_ag_resv_init(
 	struct xfs_perag		*pag)
 {
+	struct xfs_mount		*mp = pag->pag_mount;
+	xfs_agnumber_t			agno = pag->pag_agno;
 	xfs_extlen_t			ask;
 	xfs_extlen_t			used;
 	int				error = 0;
@@ -231,23 +242,45 @@ xfs_ag_resv_init(
 	if (pag->pag_meta_resv.ar_asked == 0) {
 		ask = used = 0;
 
-		error = xfs_refcountbt_calc_reserves(pag->pag_mount,
-				pag->pag_agno, &ask, &used);
+		error = xfs_refcountbt_calc_reserves(mp, agno, &ask, &used);
 		if (error)
 			goto out;
 
-		error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
-				ask, used);
+		error = xfs_finobt_calc_reserves(mp, agno, &ask, &used);
 		if (error)
 			goto out;
+
+		error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
+				ask, used);
+		if (error) {
+			/*
+			 * Because we didn't have per-AG reservations when the
+			 * finobt feature was added we might not be able to
+			 * reserve all needed blocks.  Warn and fall back to the
+			 * old and potentially buggy code in that case, but
+			 * ensure we do have the reservation for the refcountbt.
+			 */
+			ask = used = 0;
+
+			mp->m_inotbt_nores = true;
+
+			error = xfs_refcountbt_calc_reserves(mp, agno, &ask,
+					&used);
+			if (error)
+				goto out;
+
+			error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
+					ask, used);
+			if (error)
+				goto out;
+		}
 	}
 
 	/* Create the AGFL metadata reservation */
 	if (pag->pag_agfl_resv.ar_asked == 0) {
 		ask = used = 0;
 
-		error = xfs_rmapbt_calc_reserves(pag->pag_mount, pag->pag_agno,
-				&ask, &used);
+		error = xfs_rmapbt_calc_reserves(mp, agno, &ask, &used);
 		if (error)
 			goto out;
 
@@ -256,6 +289,16 @@ xfs_ag_resv_init(
 			goto out;
 	}
 
+#ifdef DEBUG
+	/* need to read in the AGF for the ASSERT below to work */
+	error = xfs_alloc_pagf_init(pag->pag_mount, NULL, pag->pag_agno, 0);
+	if (error)
+		return error;
+
+	ASSERT(xfs_perag_resv(pag, XFS_AG_RESV_METADATA)->ar_reserved +
+	       xfs_perag_resv(pag, XFS_AG_RESV_AGFL)->ar_reserved <=
+	       pag->pagf_freeblks + pag->pagf_flcount);
+#endif
 out:
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_alloc_btree.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_alloc_btree.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_alloc_btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_alloc_btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -421,7 +421,7 @@ xfs_allocbt_init_cursor(
 
 	ASSERT(btnum == XFS_BTNUM_BNO || btnum == XFS_BTNUM_CNT);
 
-	cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_SLEEP);
+	cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_NOFS);
 
 	cur->bc_tp = tp;
 	cur->bc_mp = mp;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_alloc.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_alloc.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_alloc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_alloc.c	2017-09-27 08:40:05.000000000 -0400
@@ -95,10 +95,7 @@ unsigned int
 xfs_alloc_set_aside(
 	struct xfs_mount	*mp)
 {
-	unsigned int		blocks;
-
-	blocks = 4 + (mp->m_sb.sb_agcount * XFS_ALLOC_AGFL_RESERVE);
-	return blocks;
+	return mp->m_sb.sb_agcount * (XFS_ALLOC_AGFL_RESERVE + 4);
 }
 
 /*
@@ -365,36 +362,12 @@ xfs_alloc_fix_len(
 		return;
 	ASSERT(rlen >= args->minlen && rlen <= args->maxlen);
 	ASSERT(rlen % args->prod == args->mod);
+	ASSERT(args->pag->pagf_freeblks + args->pag->pagf_flcount >=
+		rlen + args->minleft);
 	args->len = rlen;
 }
 
 /*
- * Fix up length if there is too little space left in the a.g.
- * Return 1 if ok, 0 if too little, should give up.
- */
-STATIC int
-xfs_alloc_fix_minleft(
-	xfs_alloc_arg_t	*args)		/* allocation argument structure */
-{
-	xfs_agf_t	*agf;		/* a.g. freelist header */
-	int		diff;		/* free space difference */
-
-	if (args->minleft == 0)
-		return 1;
-	agf = XFS_BUF_TO_AGF(args->agbp);
-	diff = be32_to_cpu(agf->agf_freeblks)
-		- args->len - args->minleft;
-	if (diff >= 0)
-		return 1;
-	args->len += diff;		/* shrink the allocated space */
-	/* casts to (int) catch length underflows */
-	if ((int)args->len >= (int)args->minlen)
-		return 1;
-	args->agbno = NULLAGBLOCK;
-	return 0;
-}
-
-/*
  * Update the two btrees, logically removing from freespace the extent
  * starting at rbno, rlen blocks.  The extent is contained within the
  * actual (current) free extent fbno for flen blocks.
@@ -689,8 +662,6 @@ xfs_alloc_ag_vextent(
 	xfs_alloc_arg_t	*args)	/* argument structure for allocation */
 {
 	int		error=0;
-	xfs_extlen_t	reservation;
-	xfs_extlen_t	oldmax;
 
 	ASSERT(args->minlen > 0);
 	ASSERT(args->maxlen > 0);
@@ -699,20 +670,6 @@ xfs_alloc_ag_vextent(
 	ASSERT(args->alignment > 0);
 
 	/*
-	 * Clamp maxlen to the amount of free space minus any reservations
-	 * that have been made.
-	 */
-	oldmax = args->maxlen;
-	reservation = xfs_ag_resv_needed(args->pag, args->resv);
-	if (args->maxlen > args->pag->pagf_freeblks - reservation)
-		args->maxlen = args->pag->pagf_freeblks - reservation;
-	if (args->maxlen == 0) {
-		args->agbno = NULLAGBLOCK;
-		args->maxlen = oldmax;
-		return 0;
-	}
-
-	/*
 	 * Branch to correct routine based on the type.
 	 */
 	args->wasfromfl = 0;
@@ -731,8 +688,6 @@ xfs_alloc_ag_vextent(
 		/* NOTREACHED */
 	}
 
-	args->maxlen = oldmax;
-
 	if (error || args->agbno == NULLAGBLOCK)
 		return error;
 
@@ -841,9 +796,6 @@ xfs_alloc_ag_vextent_exact(
 	args->len = XFS_AGBLOCK_MIN(tend, args->agbno + args->maxlen)
 						- args->agbno;
 	xfs_alloc_fix_len(args);
-	if (!xfs_alloc_fix_minleft(args))
-		goto not_found;
-
 	ASSERT(args->agbno + args->len <= tend);
 
 	/*
@@ -1149,12 +1101,7 @@ restart:
 		XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
 		ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
 		args->len = blen;
-		if (!xfs_alloc_fix_minleft(args)) {
-			xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
-			trace_xfs_alloc_near_nominleft(args);
-			return 0;
-		}
-		blen = args->len;
+
 		/*
 		 * We are allocating starting at bnew for blen blocks.
 		 */
@@ -1346,12 +1293,6 @@ restart:
 	 */
 	args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
 	xfs_alloc_fix_len(args);
-	if (!xfs_alloc_fix_minleft(args)) {
-		trace_xfs_alloc_near_nominleft(args);
-		xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
-		xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
-		return 0;
-	}
 	rlen = args->len;
 	(void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment,
 				     args->datatype, ltbnoa, ltlena, &ltnew);
@@ -1553,8 +1494,6 @@ restart:
 	}
 	xfs_alloc_fix_len(args);
 
-	if (!xfs_alloc_fix_minleft(args))
-		goto out_nominleft;
 	rlen = args->len;
 	XFS_WANT_CORRUPTED_GOTO(args->mp, rlen <= flen, error0);
 	/*
@@ -2056,7 +1995,7 @@ xfs_alloc_space_available(
 	int			flags)
 {
 	struct xfs_perag	*pag = args->pag;
-	xfs_extlen_t		longest;
+	xfs_extlen_t		alloc_len, longest;
 	xfs_extlen_t		reservation; /* blocks that are still reserved */
 	int			available;
 
@@ -2066,17 +2005,28 @@ xfs_alloc_space_available(
 	reservation = xfs_ag_resv_needed(pag, args->resv);
 
 	/* do we have enough contiguous free space for the allocation? */
+	alloc_len = args->minlen + (args->alignment - 1) + args->minalignslop;
 	longest = xfs_alloc_longest_free_extent(args->mp, pag, min_free,
 			reservation);
-	if ((args->minlen + args->alignment + args->minalignslop - 1) > longest)
+	if (longest < alloc_len)
 		return false;
 
 	/* do we have enough free space remaining for the allocation? */
 	available = (int)(pag->pagf_freeblks + pag->pagf_flcount -
-			  reservation - min_free - args->total);
-	if (available < (int)args->minleft || available <= 0)
+			  reservation - min_free - args->minleft);
+	if (available < (int)max(args->total, alloc_len))
 		return false;
 
+	/*
+	 * Clamp maxlen to the amount of free space available for the actual
+	 * extent allocation.
+	 */
+	if (available < (int)args->maxlen && !(flags & XFS_ALLOC_FLAG_CHECK)) {
+		args->maxlen = available;
+		ASSERT(args->maxlen > 0);
+		ASSERT(args->maxlen >= args->minlen);
+	}
+
 	return true;
 }
 
@@ -2122,7 +2072,8 @@ xfs_alloc_fix_freelist(
 	}
 
 	need = xfs_alloc_min_freelist(mp, pag);
-	if (!xfs_alloc_space_available(args, need, flags))
+	if (!xfs_alloc_space_available(args, need, flags |
+			XFS_ALLOC_FLAG_CHECK))
 		goto out_agbp_relse;
 
 	/*
@@ -2455,12 +2406,15 @@ xfs_agf_verify(
 	      be32_to_cpu(agf->agf_flcount) <= XFS_AGFL_SIZE(mp)))
 		return false;
 
-	if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS ||
+	if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) < 1 ||
+	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) < 1 ||
+	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS ||
 	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS)
 		return false;
 
 	if (xfs_sb_version_hasrmapbt(&mp->m_sb) &&
-	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > XFS_BTREE_MAXLEVELS)
+	    (be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) < 1 ||
+	     be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > XFS_BTREE_MAXLEVELS))
 		return false;
 
 	/*
@@ -2477,7 +2431,8 @@ xfs_agf_verify(
 		return false;
 
 	if (xfs_sb_version_hasreflink(&mp->m_sb) &&
-	    be32_to_cpu(agf->agf_refcount_level) > XFS_BTREE_MAXLEVELS)
+	    (be32_to_cpu(agf->agf_refcount_level) < 1 ||
+	     be32_to_cpu(agf->agf_refcount_level) > XFS_BTREE_MAXLEVELS))
 		return false;
 
 	return true;;
@@ -2634,12 +2589,10 @@ xfs_alloc_vextent(
 	xfs_agblock_t	agsize;	/* allocation group size */
 	int		error;
 	int		flags;	/* XFS_ALLOC_FLAG_... locking flags */
-	xfs_extlen_t	minleft;/* minimum left value, temp copy */
 	xfs_mount_t	*mp;	/* mount structure pointer */
 	xfs_agnumber_t	sagno;	/* starting allocation group number */
 	xfs_alloctype_t	type;	/* input allocation type */
 	int		bump_rotor = 0;
-	int		no_min = 0;
 	xfs_agnumber_t	rotorstep = xfs_rotorstep; /* inode32 agf stepper */
 
 	mp = args->mp;
@@ -2668,7 +2621,6 @@ xfs_alloc_vextent(
 		trace_xfs_alloc_vextent_badargs(args);
 		return 0;
 	}
-	minleft = args->minleft;
 
 	switch (type) {
 	case XFS_ALLOCTYPE_THIS_AG:
@@ -2679,9 +2631,7 @@ xfs_alloc_vextent(
 		 */
 		args->agno = XFS_FSB_TO_AGNO(mp, args->fsbno);
 		args->pag = xfs_perag_get(mp, args->agno);
-		args->minleft = 0;
 		error = xfs_alloc_fix_freelist(args, 0);
-		args->minleft = minleft;
 		if (error) {
 			trace_xfs_alloc_vextent_nofix(args);
 			goto error0;
@@ -2746,9 +2696,7 @@ xfs_alloc_vextent(
 		 */
 		for (;;) {
 			args->pag = xfs_perag_get(mp, args->agno);
-			if (no_min) args->minleft = 0;
 			error = xfs_alloc_fix_freelist(args, flags);
-			args->minleft = minleft;
 			if (error) {
 				trace_xfs_alloc_vextent_nofix(args);
 				goto error0;
@@ -2788,20 +2736,17 @@ xfs_alloc_vextent(
 			 * or switch to non-trylock mode.
 			 */
 			if (args->agno == sagno) {
-				if (no_min == 1) {
+				if (flags == 0) {
 					args->agbno = NULLAGBLOCK;
 					trace_xfs_alloc_vextent_allfailed(args);
 					break;
 				}
-				if (flags == 0) {
-					no_min = 1;
-				} else {
-					flags = 0;
-					if (type == XFS_ALLOCTYPE_START_BNO) {
-						args->agbno = XFS_FSB_TO_AGBNO(mp,
-							args->fsbno);
-						args->type = XFS_ALLOCTYPE_NEAR_BNO;
-					}
+
+				flags = 0;
+				if (type == XFS_ALLOCTYPE_START_BNO) {
+					args->agbno = XFS_FSB_TO_AGBNO(mp,
+						args->fsbno);
+					args->type = XFS_ALLOCTYPE_NEAR_BNO;
 				}
 			}
 			xfs_perag_put(args->pag);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_alloc.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_alloc.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_alloc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_alloc.h	2017-09-27 08:40:05.000000000 -0400
@@ -56,7 +56,7 @@ typedef unsigned int xfs_alloctype_t;
 #define	XFS_ALLOC_FLAG_FREEING	0x00000002  /* indicate caller is freeing extents*/
 #define	XFS_ALLOC_FLAG_NORMAP	0x00000004  /* don't modify the rmapbt */
 #define	XFS_ALLOC_FLAG_NOSHRINK	0x00000008  /* don't shrink the freelist */
-
+#define	XFS_ALLOC_FLAG_CHECK	0x00000010  /* test only, don't modify args */
 
 /*
  * Argument structure for xfs_alloc routines.
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_attr.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_attr.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_attr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_attr.c	2017-09-27 08:40:05.000000000 -0400
@@ -131,9 +131,6 @@ xfs_attr_get(
 	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
 		return -EIO;
 
-	if (!xfs_inode_hasattr(ip))
-		return -ENOATTR;
-
 	error = xfs_attr_args_init(&args, ip, name, flags);
 	if (error)
 		return error;
@@ -392,9 +389,6 @@ xfs_attr_remove(
 	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
 		return -EIO;
 
-	if (!xfs_inode_hasattr(dp))
-		return -ENOATTR;
-
 	error = xfs_attr_args_init(&args, dp, name, flags);
 	if (error)
 		return error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_attr_leaf.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_attr_leaf.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_attr_leaf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_attr_leaf.c	2017-09-27 08:40:05.000000000 -0400
@@ -253,6 +253,7 @@ xfs_attr3_leaf_verify(
 {
 	struct xfs_mount	*mp = bp->b_target->bt_mount;
 	struct xfs_attr_leafblock *leaf = bp->b_addr;
+	struct xfs_perag *pag = bp->b_pag;
 	struct xfs_attr3_icleaf_hdr ichdr;
 
 	xfs_attr3_leaf_hdr_from_disk(mp->m_attr_geo, &ichdr, leaf);
@@ -273,7 +274,12 @@ xfs_attr3_leaf_verify(
 		if (ichdr.magic != XFS_ATTR_LEAF_MAGIC)
 			return false;
 	}
-	if (ichdr.count == 0)
+	/*
+	 * In recovery there is a transient state where count == 0 is valid
+	 * because we may have transitioned an empty shortform attr to a leaf
+	 * if the attr didn't fit in shortform.
+	 */
+	if (pag && pag->pagf_init && ichdr.count == 0)
 		return false;
 
 	/* XXX: need to range check rest of attr header values */
@@ -345,7 +351,7 @@ xfs_attr3_leaf_read(
 
 	err = xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
 				XFS_ATTR_FORK, &xfs_attr3_leaf_buf_ops);
-	if (!err && tp)
+	if (!err && tp && *bpp)
 		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_ATTR_LEAF_BUF);
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_bmap_btree.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_bmap_btree.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_bmap_btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_bmap_btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -453,8 +453,8 @@ xfs_bmbt_alloc_block(
 
 	if (args.fsbno == NULLFSBLOCK) {
 		args.fsbno = be64_to_cpu(start->l);
-try_another_ag:
 		args.type = XFS_ALLOCTYPE_START_BNO;
+try_another_ag:
 		/*
 		 * Make sure there is sufficient room left in the AG to
 		 * complete a full tree split for an extent insert.  If
@@ -494,26 +494,25 @@ try_another_ag:
 	if (xfs_sb_version_hasreflink(&cur->bc_mp->m_sb) &&
 	    args.fsbno == NULLFSBLOCK &&
 	    args.type == XFS_ALLOCTYPE_NEAR_BNO) {
-		cur->bc_private.b.dfops->dop_low = true;
 		args.fsbno = cur->bc_private.b.firstblock;
+		args.type = XFS_ALLOCTYPE_FIRST_AG;
 		goto try_another_ag;
 	}
 
 	if (args.fsbno == NULLFSBLOCK && args.minleft) {
 		/*
 		 * Could not find an AG with enough free space to satisfy
-		 * a full btree split.  Try again without minleft and if
+		 * a full btree split.  Try again and if
 		 * successful activate the lowspace algorithm.
 		 */
 		args.fsbno = 0;
 		args.type = XFS_ALLOCTYPE_FIRST_AG;
-		args.minleft = 0;
 		error = xfs_alloc_vextent(&args);
 		if (error)
 			goto error0;
 		cur->bc_private.b.dfops->dop_low = true;
 	}
-	if (args.fsbno == NULLFSBLOCK) {
+	if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) {
 		XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
 		*stat = 0;
 		return 0;
@@ -796,7 +795,7 @@ xfs_bmbt_init_cursor(
 	struct xfs_btree_cur	*cur;
 	ASSERT(whichfork != XFS_COW_FORK);
 
-	cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_SLEEP);
+	cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_NOFS);
 
 	cur->bc_tp = tp;
 	cur->bc_mp = mp;
@@ -889,6 +888,7 @@ xfs_bmbt_change_owner(
 	cur = xfs_bmbt_init_cursor(ip->i_mount, tp, ip, whichfork);
 	if (!cur)
 		return -ENOMEM;
+	cur->bc_private.b.flags |= XFS_BTCUR_BPRV_INVALID_OWNER;
 
 	error = xfs_btree_change_owner(cur, new_owner, buffer_list);
 	xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_bmap.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_bmap.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_bmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_bmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -49,6 +49,8 @@
 #include "xfs_rmap.h"
 #include "xfs_ag_resv.h"
 #include "xfs_refcount.h"
+#include "xfs_rmap_btree.h"
+#include "xfs_icache.h"
 
 
 kmem_zone_t		*xfs_bmap_free_item_zone;
@@ -190,8 +192,12 @@ xfs_bmap_worst_indlen(
 	int		maxrecs;	/* maximum record count at this level */
 	xfs_mount_t	*mp;		/* mount structure */
 	xfs_filblks_t	rval;		/* return value */
+	xfs_filblks_t   orig_len;
 
 	mp = ip->i_mount;
+
+	/* Calculate the worst-case size of the bmbt. */
+	orig_len = len;
 	maxrecs = mp->m_bmap_dmxr[0];
 	for (level = 0, rval = 0;
 	     level < XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK);
@@ -199,12 +205,20 @@ xfs_bmap_worst_indlen(
 		len += maxrecs - 1;
 		do_div(len, maxrecs);
 		rval += len;
-		if (len == 1)
-			return rval + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -
+		if (len == 1) {
+			rval += XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -
 				level - 1;
+			break;
+		}
 		if (level == 0)
 			maxrecs = mp->m_bmap_dmxr[1];
 	}
+
+	/* Calculate the worst-case size of the rmapbt. */
+	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+		rval += 1 + xfs_rmapbt_calc_size(mp, orig_len) +
+				mp->m_rmap_maxlevels;
+
 	return rval;
 }
 
@@ -504,7 +518,7 @@ void
 xfs_bmap_trace_exlist(
 	xfs_inode_t	*ip,		/* incore inode pointer */
 	xfs_extnum_t	cnt,		/* count of entries in the list */
-	int		whichfork,	/* data or attr fork */
+	int		whichfork,	/* data or attr or cow fork */
 	unsigned long	caller_ip)
 {
 	xfs_extnum_t	idx;		/* extent record index */
@@ -513,11 +527,13 @@ xfs_bmap_trace_exlist(
 
 	if (whichfork == XFS_ATTR_FORK)
 		state |= BMAP_ATTRFORK;
+	else if (whichfork == XFS_COW_FORK)
+		state |= BMAP_COWFORK;
 
 	ifp = XFS_IFORK_PTR(ip, whichfork);
-	ASSERT(cnt == (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t)));
+	ASSERT(cnt == xfs_iext_count(ifp));
 	for (idx = 0; idx < cnt; idx++)
-		trace_xfs_extlist(ip, idx, whichfork, caller_ip);
+		trace_xfs_extlist(ip, idx, state, caller_ip);
 }
 
 /*
@@ -563,7 +579,7 @@ xfs_bmap_validate_ret(
 
 #else
 #define xfs_bmap_check_leaf_extents(cur, ip, whichfork)		do { } while (0)
-#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)
+#define	xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)	do { } while (0)
 #endif /* DEBUG */
 
 /*
@@ -753,8 +769,8 @@ xfs_bmap_extents_to_btree(
 		args.type = XFS_ALLOCTYPE_START_BNO;
 		args.fsbno = XFS_INO_TO_FSB(mp, ip->i_ino);
 	} else if (dfops->dop_low) {
-try_another_ag:
 		args.type = XFS_ALLOCTYPE_START_BNO;
+try_another_ag:
 		args.fsbno = *firstblock;
 	} else {
 		args.type = XFS_ALLOCTYPE_NEAR_BNO;
@@ -780,17 +796,19 @@ try_another_ag:
 	if (xfs_sb_version_hasreflink(&cur->bc_mp->m_sb) &&
 	    args.fsbno == NULLFSBLOCK &&
 	    args.type == XFS_ALLOCTYPE_NEAR_BNO) {
-		dfops->dop_low = true;
+		args.type = XFS_ALLOCTYPE_FIRST_AG;
 		goto try_another_ag;
 	}
+	if (WARN_ON_ONCE(args.fsbno == NULLFSBLOCK)) {
+		xfs_iroot_realloc(ip, -1, whichfork);
+		xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
+		return -ENOSPC;
+	}
 	/*
 	 * Allocation can't fail, the space was reserved.
 	 */
-	ASSERT(args.fsbno != NULLFSBLOCK);
 	ASSERT(*firstblock == NULLFSBLOCK ||
-	       args.agno == XFS_FSB_TO_AGNO(mp, *firstblock) ||
-	       (dfops->dop_low &&
-		args.agno > XFS_FSB_TO_AGNO(mp, *firstblock)));
+	       args.agno >= XFS_FSB_TO_AGNO(mp, *firstblock));
 	*firstblock = cur->bc_private.b.firstblock = args.fsbno;
 	cur->bc_private.b.allocated++;
 	ip->i_d.di_nblocks++;
@@ -811,7 +829,7 @@ try_another_ag:
 				XFS_BTREE_LONG_PTRS);
 
 	arp = XFS_BMBT_REC_ADDR(mp, ablock, 1);
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents =  xfs_iext_count(ifp);
 	for (cnt = i = 0; i < nextents; i++) {
 		ep = xfs_iext_get_ext(ifp, i);
 		if (!isnullstartblock(xfs_bmbt_get_startblock(ep))) {
@@ -1137,6 +1155,10 @@ xfs_bmap_add_attrfork(
 		goto trans_cancel;
 	if (XFS_IFORK_Q(ip))
 		goto trans_cancel;
+	if (ip->i_d.di_anextents != 0) {
+		error = -EFSCORRUPTED;
+		goto trans_cancel;
+	}
 	if (ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS) {
 		/*
 		 * For inodes coming from pre-6.2 filesystems.
@@ -1144,7 +1166,6 @@ xfs_bmap_add_attrfork(
 		ASSERT(ip->i_d.di_aformat == 0);
 		ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
 	}
-	ASSERT(ip->i_d.di_anextents == 0);
 
 	xfs_trans_ijoin(tp, ip, 0);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
@@ -1259,7 +1280,6 @@ xfs_bmap_read_extents(
 	/* REFERENCED */
 	xfs_extnum_t		room;	/* number of entries there's room for */
 
-	bno = NULLFSBLOCK;
 	mp = ip->i_mount;
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	exntf = (whichfork != XFS_DATA_FORK) ? XFS_EXTFMT_NOSTATE :
@@ -1272,9 +1292,7 @@ xfs_bmap_read_extents(
 	ASSERT(level > 0);
 	pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
 	bno = be64_to_cpu(*pp);
-	ASSERT(bno != NULLFSBLOCK);
-	ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
-	ASSERT(XFS_FSB_TO_AGBNO(mp, bno) < mp->m_sb.sb_agblocks);
+
 	/*
 	 * Go down the tree until leaf level is reached, following the first
 	 * pointer (leftmost) at each level.
@@ -1296,7 +1314,7 @@ xfs_bmap_read_extents(
 	/*
 	 * Here with bp and block set to the leftmost leaf node in the tree.
 	 */
-	room = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	room = xfs_iext_count(ifp);
 	i = 0;
 	/*
 	 * Loop over all leaf nodes.  Copy information to the extent records.
@@ -1361,8 +1379,9 @@ xfs_bmap_read_extents(
 			return error;
 		block = XFS_BUF_TO_BLOCK(bp);
 	}
-	ASSERT(i == (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t)));
-	ASSERT(i == XFS_IFORK_NEXTENTS(ip, whichfork));
+	if (i != XFS_IFORK_NEXTENTS(ip, whichfork))
+		return -EFSCORRUPTED;
+	ASSERT(i == xfs_iext_count(ifp));
 	XFS_BMAP_TRACE_EXLIST(ip, i, whichfork);
 	return 0;
 error0:
@@ -1404,7 +1423,7 @@ xfs_bmap_search_multi_extents(
 	if (lastx > 0) {
 		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, lastx - 1), prevp);
 	}
-	if (lastx < (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t))) {
+	if (lastx < xfs_iext_count(ifp)) {
 		xfs_bmbt_get_all(ep, gotp);
 		*eofp = 0;
 	} else {
@@ -1497,7 +1516,7 @@ xfs_bmap_first_unused(
 	    (error = xfs_iread_extents(tp, ip, whichfork)))
 		return error;
 	lowest = *first_unused;
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	for (idx = 0, lastaddr = 0, max = lowest; idx < nextents; idx++) {
 		xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, idx);
 		off = xfs_bmbt_get_startoff(ep);
@@ -1582,7 +1601,7 @@ xfs_bmap_last_extent(
 			return error;
 	}
 
-	nextents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	if (nextents == 0) {
 		*is_empty = 1;
 		return 0;
@@ -1735,7 +1754,7 @@ xfs_bmap_add_extent_delay_real(
 						&bma->ip->i_d.di_nextents);
 
 	ASSERT(bma->idx >= 0);
-	ASSERT(bma->idx <= ifp->if_bytes / sizeof(struct xfs_bmbt_rec));
+	ASSERT(bma->idx <= xfs_iext_count(ifp));
 	ASSERT(!isnullstartblock(new->br_startblock));
 	ASSERT(!bma->cur ||
 	       (bma->cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL));
@@ -1794,7 +1813,7 @@ xfs_bmap_add_extent_delay_real(
 	 * Don't set contiguous if the combined extent would be too large.
 	 * Also check for all-three-contiguous being too large.
 	 */
-	if (bma->idx < ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - 1) {
+	if (bma->idx < xfs_iext_count(ifp) - 1) {
 		state |= BMAP_RIGHT_VALID;
 		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx + 1), &RIGHT);
 
@@ -1935,6 +1954,7 @@ xfs_bmap_add_extent_delay_real(
 		 */
 		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
 		xfs_bmbt_set_startblock(ep, new->br_startblock);
+		xfs_bmbt_set_state(ep, new->br_state);
 		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
 
 		(*nextents)++;
@@ -2188,8 +2208,10 @@ xfs_bmap_add_extent_delay_real(
 		}
 		temp = xfs_bmap_worst_indlen(bma->ip, temp);
 		temp2 = xfs_bmap_worst_indlen(bma->ip, temp2);
-		diff = (int)(temp + temp2 - startblockval(PREV.br_startblock) -
-			(bma->cur ? bma->cur->bc_private.b.allocated : 0));
+		diff = (int)(temp + temp2 -
+			     (startblockval(PREV.br_startblock) -
+			      (bma->cur ?
+			       bma->cur->bc_private.b.allocated : 0)));
 		if (diff > 0) {
 			error = xfs_mod_fdblocks(bma->ip->i_mount,
 						 -((int64_t)diff), false);
@@ -2246,7 +2268,6 @@ xfs_bmap_add_extent_delay_real(
 		temp = da_new;
 		if (bma->cur)
 			temp += bma->cur->bc_private.b.allocated;
-		ASSERT(temp <= da_old);
 		if (temp < da_old)
 			xfs_mod_fdblocks(bma->ip->i_mount,
 					(int64_t)(da_old - temp), false);
@@ -2273,6 +2294,7 @@ STATIC int				/* error */
 xfs_bmap_add_extent_unwritten_real(
 	struct xfs_trans	*tp,
 	xfs_inode_t		*ip,	/* incore inode pointer */
+	int			whichfork,
 	xfs_extnum_t		*idx,	/* extent number to update/insert */
 	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
@@ -2292,15 +2314,17 @@ xfs_bmap_add_extent_unwritten_real(
 					/* left is 0, right is 1, prev is 2 */
 	int			rval=0;	/* return value (logging flags) */
 	int			state = 0;/* state bits, accessed thru macros */
-	struct xfs_mount	*mp = tp->t_mountp;
+	struct xfs_mount	*mp = ip->i_mount;
 
 	*logflagsp = 0;
 
 	cur = *curp;
-	ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	if (whichfork == XFS_COW_FORK)
+		state |= BMAP_COWFORK;
 
 	ASSERT(*idx >= 0);
-	ASSERT(*idx <= ifp->if_bytes / sizeof(struct xfs_bmbt_rec));
+	ASSERT(*idx <= xfs_iext_count(ifp));
 	ASSERT(!isnullstartblock(new->br_startblock));
 
 	XFS_STATS_INC(mp, xs_add_exlist);
@@ -2356,7 +2380,7 @@ xfs_bmap_add_extent_unwritten_real(
 	 * Don't set contiguous if the combined extent would be too large.
 	 * Also check for all-three-contiguous being too large.
 	 */
-	if (*idx < ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - 1) {
+	if (*idx < xfs_iext_count(ifp) - 1) {
 		state |= BMAP_RIGHT_VALID;
 		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx + 1), &RIGHT);
 		if (isnullstartblock(RIGHT.br_startblock))
@@ -2396,7 +2420,8 @@ xfs_bmap_add_extent_unwritten_real(
 		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
 
 		xfs_iext_remove(ip, *idx + 1, 2, state);
-		ip->i_d.di_nextents -= 2;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+				XFS_IFORK_NEXTENTS(ip, whichfork) - 2);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
@@ -2439,7 +2464,8 @@ xfs_bmap_add_extent_unwritten_real(
 		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
 
 		xfs_iext_remove(ip, *idx + 1, 1, state);
-		ip->i_d.di_nextents--;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+				XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
@@ -2474,7 +2500,8 @@ xfs_bmap_add_extent_unwritten_real(
 		xfs_bmbt_set_state(ep, newext);
 		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
 		xfs_iext_remove(ip, *idx + 1, 1, state);
-		ip->i_d.di_nextents--;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+				XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
@@ -2586,7 +2613,8 @@ xfs_bmap_add_extent_unwritten_real(
 		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
 
 		xfs_iext_insert(ip, *idx, 1, new, state);
-		ip->i_d.di_nextents++;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+				XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
@@ -2664,7 +2692,8 @@ xfs_bmap_add_extent_unwritten_real(
 		++*idx;
 		xfs_iext_insert(ip, *idx, 1, new, state);
 
-		ip->i_d.di_nextents++;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+				XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
@@ -2712,7 +2741,8 @@ xfs_bmap_add_extent_unwritten_real(
 		++*idx;
 		xfs_iext_insert(ip, *idx, 2, &r[0], state);
 
-		ip->i_d.di_nextents += 2;
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+				XFS_IFORK_NEXTENTS(ip, whichfork) + 2);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
@@ -2766,17 +2796,17 @@ xfs_bmap_add_extent_unwritten_real(
 	}
 
 	/* update reverse mappings */
-	error = xfs_rmap_convert_extent(mp, dfops, ip, XFS_DATA_FORK, new);
+	error = xfs_rmap_convert_extent(mp, dfops, ip, whichfork, new);
 	if (error)
 		goto done;
 
 	/* convert to a btree if necessary */
-	if (xfs_bmap_needs_btree(ip, XFS_DATA_FORK)) {
+	if (xfs_bmap_needs_btree(ip, whichfork)) {
 		int	tmp_logflags;	/* partial log flag return val */
 
 		ASSERT(cur == NULL);
 		error = xfs_bmap_extents_to_btree(tp, ip, first, dfops, &cur,
-				0, &tmp_logflags, XFS_DATA_FORK);
+				0, &tmp_logflags, whichfork);
 		*logflagsp |= tmp_logflags;
 		if (error)
 			goto done;
@@ -2788,7 +2818,7 @@ xfs_bmap_add_extent_unwritten_real(
 		*curp = cur;
 	}
 
-	xfs_bmap_check_leaf_extents(*curp, ip, XFS_DATA_FORK);
+	xfs_bmap_check_leaf_extents(*curp, ip, whichfork);
 done:
 	*logflagsp |= rval;
 	return error;
@@ -2836,7 +2866,7 @@ xfs_bmap_add_extent_hole_delay(
 	 * Check and set flags if the current (right) segment exists.
 	 * If it doesn't exist, we're converting the hole at end-of-file.
 	 */
-	if (*idx < ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t)) {
+	if (*idx < xfs_iext_count(ifp)) {
 		state |= BMAP_RIGHT_VALID;
 		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx), &right);
 
@@ -2880,7 +2910,8 @@ xfs_bmap_add_extent_hole_delay(
 		oldlen = startblockval(left.br_startblock) +
 			startblockval(new->br_startblock) +
 			startblockval(right.br_startblock);
-		newlen = xfs_bmap_worst_indlen(ip, temp);
+		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+					 oldlen);
 		xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, *idx),
 			nullstartblock((int)newlen));
 		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
@@ -2901,7 +2932,8 @@ xfs_bmap_add_extent_hole_delay(
 		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx), temp);
 		oldlen = startblockval(left.br_startblock) +
 			startblockval(new->br_startblock);
-		newlen = xfs_bmap_worst_indlen(ip, temp);
+		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+					 oldlen);
 		xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, *idx),
 			nullstartblock((int)newlen));
 		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
@@ -2917,7 +2949,8 @@ xfs_bmap_add_extent_hole_delay(
 		temp = new->br_blockcount + right.br_blockcount;
 		oldlen = startblockval(new->br_startblock) +
 			startblockval(right.br_startblock);
-		newlen = xfs_bmap_worst_indlen(ip, temp);
+		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+					 oldlen);
 		xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, *idx),
 			new->br_startoff,
 			nullstartblock((int)newlen), temp, right.br_state);
@@ -2966,7 +2999,7 @@ xfs_bmap_add_extent_hole_real(
 	ifp = XFS_IFORK_PTR(bma->ip, whichfork);
 
 	ASSERT(bma->idx >= 0);
-	ASSERT(bma->idx <= ifp->if_bytes / sizeof(struct xfs_bmbt_rec));
+	ASSERT(bma->idx <= xfs_iext_count(ifp));
 	ASSERT(!isnullstartblock(new->br_startblock));
 	ASSERT(!bma->cur ||
 	       !(bma->cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL));
@@ -2992,7 +3025,7 @@ xfs_bmap_add_extent_hole_real(
 	 * Check and set flags if this segment has a current value.
 	 * Not true if we're inserting into the "hole" at eof.
 	 */
-	if (bma->idx < ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t)) {
+	if (bma->idx < xfs_iext_count(ifp)) {
 		state |= BMAP_RIGHT_VALID;
 		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx), &right);
 		if (isnullstartblock(right.br_startblock))
@@ -3700,7 +3733,7 @@ xfs_bmap_btalloc(
 		align = xfs_get_cowextsz_hint(ap->ip);
 	else if (xfs_alloc_is_userdata(ap->datatype))
 		align = xfs_get_extsz_hint(ap->ip);
-	if (unlikely(align)) {
+	if (align) {
 		error = xfs_bmap_extsize_align(mp, &ap->got, &ap->prev,
 						align, 0, ap->eof, 0, ap->conv,
 						&ap->offset, &ap->length);
@@ -3772,7 +3805,7 @@ xfs_bmap_btalloc(
 		args.minlen = ap->minlen;
 	}
 	/* apply extent size hints if obtained earlier */
-	if (unlikely(align)) {
+	if (align) {
 		args.prod = align;
 		if ((args.mod = (xfs_extlen_t)do_mod(ap->offset, args.prod)))
 			args.mod = (xfs_extlen_t)(args.prod - args.mod);
@@ -3883,7 +3916,6 @@ xfs_bmap_btalloc(
 		args.fsbno = 0;
 		args.type = XFS_ALLOCTYPE_FIRST_AG;
 		args.total = ap->minlen;
-		args.minleft = 0;
 		if ((error = xfs_alloc_vextent(&args)))
 			return error;
 		ap->dfops->dop_low = true;
@@ -3894,17 +3926,13 @@ xfs_bmap_btalloc(
 		 * the first block that was allocated.
 		 */
 		ASSERT(*ap->firstblock == NULLFSBLOCK ||
-		       XFS_FSB_TO_AGNO(mp, *ap->firstblock) ==
-		       XFS_FSB_TO_AGNO(mp, args.fsbno) ||
-		       (ap->dfops->dop_low &&
-			XFS_FSB_TO_AGNO(mp, *ap->firstblock) <
-			XFS_FSB_TO_AGNO(mp, args.fsbno)));
+		       XFS_FSB_TO_AGNO(mp, *ap->firstblock) <=
+		       XFS_FSB_TO_AGNO(mp, args.fsbno));
 
 		ap->blkno = args.fsbno;
 		if (*ap->firstblock == NULLFSBLOCK)
 			*ap->firstblock = args.fsbno;
-		ASSERT(nullfb || fb_agno == args.agno ||
-		       (ap->dfops->dop_low && fb_agno < args.agno));
+		ASSERT(nullfb || fb_agno <= args.agno);
 		ap->length = args.len;
 		if (!(ap->flags & XFS_BMAPI_COWFORK))
 			ap->ip->i_d.di_nblocks += args.len;
@@ -3937,7 +3965,7 @@ xfs_bmap_remap_alloc(
 {
 	struct xfs_trans	*tp = ap->tp;
 	struct xfs_mount	*mp = tp->t_mountp;
-	xfs_agblock_t		bno;
+	xfs_fsblock_t		bno;
 	struct xfs_alloc_arg	args;
 	int			error;
 
@@ -4221,7 +4249,7 @@ xfs_bmapi_read(
 			break;
 
 		/* Else go on to the next record. */
-		if (++lastx < ifp->if_bytes / sizeof(xfs_bmbt_rec_t))
+		if (++lastx < xfs_iext_count(ifp))
 			xfs_bmbt_get_all(xfs_iext_get_ext(ifp, lastx), &got);
 		else
 			eof = 1;
@@ -4230,14 +4258,27 @@ xfs_bmapi_read(
 	return 0;
 }
 
+/*
+ * Add a delayed allocation extent to an inode. Blocks are reserved from the
+ * global pool and the extent inserted into the inode in-core extent tree.
+ *
+ * On entry, got refers to the first extent beyond the offset of the extent to
+ * allocate or eof is specified if no such extent exists. On return, got refers
+ * to the extent record that was inserted to the inode fork.
+ *
+ * Note that the allocated extent may have been merged with contiguous extents
+ * during insertion into the inode fork. Thus, got does not reflect the current
+ * state of the inode fork on return. If necessary, the caller can use lastx to
+ * look up the updated record in the inode fork.
+ */
 int
 xfs_bmapi_reserve_delalloc(
 	struct xfs_inode	*ip,
 	int			whichfork,
-	xfs_fileoff_t		aoff,
+	xfs_fileoff_t		off,
 	xfs_filblks_t		len,
+	xfs_filblks_t		prealloc,
 	struct xfs_bmbt_irec	*got,
-	struct xfs_bmbt_irec	*prev,
 	xfs_extnum_t		*lastx,
 	int			eof)
 {
@@ -4248,10 +4289,17 @@ xfs_bmapi_reserve_delalloc(
 	char			rt = XFS_IS_REALTIME_INODE(ip);
 	xfs_extlen_t		extsz;
 	int			error;
+	xfs_fileoff_t		aoff = off;
 
-	alen = XFS_FILBLKS_MIN(len, MAXEXTLEN);
+	/*
+	 * Cap the alloc length. Keep track of prealloc so we know whether to
+	 * tag the inode before we return.
+	 */
+	alen = XFS_FILBLKS_MIN(len + prealloc, MAXEXTLEN);
 	if (!eof)
 		alen = XFS_FILBLKS_MIN(alen, got->br_startoff - aoff);
+	if (prealloc && alen >= len)
+		prealloc = alen - len;
 
 	/* Figure out the extent size, adjust alen */
 	if (whichfork == XFS_COW_FORK)
@@ -4259,7 +4307,12 @@ xfs_bmapi_reserve_delalloc(
 	else
 		extsz = xfs_get_extsz_hint(ip);
 	if (extsz) {
-		error = xfs_bmap_extsize_align(mp, got, prev, extsz, rt, eof,
+		struct xfs_bmbt_irec	prev;
+
+		if (!xfs_iext_get_extent(ifp, *lastx - 1, &prev))
+			prev.br_startoff = NULLFILEOFF;
+
+		error = xfs_bmap_extsize_align(mp, got, &prev, extsz, rt, eof,
 					       1, 0, &aoff, &alen);
 		ASSERT(!error);
 	}
@@ -4304,18 +4357,19 @@ xfs_bmapi_reserve_delalloc(
 	got->br_startblock = nullstartblock(indlen);
 	got->br_blockcount = alen;
 	got->br_state = XFS_EXT_NORM;
+
 	xfs_bmap_add_extent_hole_delay(ip, whichfork, lastx, got);
 
 	/*
-	 * Update our extent pointer, given that xfs_bmap_add_extent_hole_delay
-	 * might have merged it into one of the neighbouring ones.
+	 * Tag the inode if blocks were preallocated. Note that COW fork
+	 * preallocation can occur at the start or end of the extent, even when
+	 * prealloc == 0, so we must also check the aligned offset and length.
 	 */
-	xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *lastx), got);
+	if (whichfork == XFS_DATA_FORK && prealloc)
+		xfs_inode_set_eofblocks_tag(ip);
+	if (whichfork == XFS_COW_FORK && (prealloc || aoff < off || alen > len))
+		xfs_inode_set_cowblocks_tag(ip);
 
-	ASSERT(got->br_startoff <= aoff);
-	ASSERT(got->br_startoff + got->br_blockcount >= aoff + alen);
-	ASSERT(isnullstartblock(got->br_startblock));
-	ASSERT(got->br_state == XFS_EXT_NORM);
 	return 0;
 
 out_unreserve_blocks:
@@ -4395,8 +4449,6 @@ xfs_bmapi_allocate(
 	if (error)
 		return error;
 
-	if (bma->dfops->dop_low)
-		bma->minleft = 0;
 	if (bma->cur)
 		bma->cur->bc_private.b.firstblock = *bma->firstblock;
 	if (bma->blkno == NULLFSBLOCK)
@@ -4422,10 +4474,16 @@ xfs_bmapi_allocate(
 	bma->got.br_state = XFS_EXT_NORM;
 
 	/*
-	 * A wasdelay extent has been initialized, so shouldn't be flagged
-	 * as unwritten.
+	 * In the data fork, a wasdelay extent has been initialized, so
+	 * shouldn't be flagged as unwritten.
+	 *
+	 * For the cow fork, however, we convert delalloc reservations
+	 * (extents allocated for speculative preallocation) to
+	 * allocated unwritten extents, and only convert the unwritten
+	 * extents to real extents when we're about to write the data.
 	 */
-	if (!bma->wasdel && (bma->flags & XFS_BMAPI_PREALLOC) &&
+	if ((!bma->wasdel || (bma->flags & XFS_BMAPI_COWFORK)) &&
+	    (bma->flags & XFS_BMAPI_PREALLOC) &&
 	    xfs_sb_version_hasextflgbit(&mp->m_sb))
 		bma->got.br_state = XFS_EXT_UNWRITTEN;
 
@@ -4476,8 +4534,6 @@ xfs_bmapi_convert_unwritten(
 			(XFS_BMAPI_PREALLOC | XFS_BMAPI_CONVERT))
 		return 0;
 
-	ASSERT(whichfork != XFS_COW_FORK);
-
 	/*
 	 * Modify (by adding) the state flag, if writing.
 	 */
@@ -4502,8 +4558,8 @@ xfs_bmapi_convert_unwritten(
 			return error;
 	}
 
-	error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, &bma->idx,
-			&bma->cur, mval, bma->firstblock, bma->dfops,
+	error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, whichfork,
+			&bma->idx, &bma->cur, mval, bma->firstblock, bma->dfops,
 			&tmp_logflags);
 	/*
 	 * Log the inode core unconditionally in the unwritten extent conversion
@@ -4512,8 +4568,12 @@ xfs_bmapi_convert_unwritten(
 	 * in the transaction for the sake of fsync(), even if nothing has
 	 * changed, because fsync() will not force the log for this transaction
 	 * unless it sees the inode pinned.
+	 *
+	 * Note: If we're only converting cow fork extents, there aren't
+	 * any on-disk updates to make, so we don't need to log anything.
 	 */
-	bma->logflags |= tmp_logflags | XFS_ILOG_CORE;
+	if (whichfork != XFS_COW_FORK)
+		bma->logflags |= tmp_logflags | XFS_ILOG_CORE;
 	if (error)
 		return error;
 
@@ -4568,8 +4628,6 @@ xfs_bmapi_write(
 	int			n;		/* current extent index */
 	xfs_fileoff_t		obno;		/* old block number (offset) */
 	int			whichfork;	/* data or attr fork */
-	char			inhole;		/* current location is hole in file */
-	char			wasdelay;	/* old extent was delayed */
 
 #ifdef DEBUG
 	xfs_fileoff_t		orig_bno;	/* original block number value */
@@ -4589,15 +4647,15 @@ xfs_bmapi_write(
 	ASSERT(*nmap >= 1);
 	ASSERT(*nmap <= XFS_BMAP_MAX_NMAP);
 	ASSERT(!(flags & XFS_BMAPI_IGSTATE));
-	ASSERT(tp != NULL);
+	ASSERT(tp != NULL ||
+	       (flags & (XFS_BMAPI_CONVERT | XFS_BMAPI_COWFORK)) ==
+			(XFS_BMAPI_CONVERT | XFS_BMAPI_COWFORK));
 	ASSERT(len > 0);
 	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL);
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
 	ASSERT(!(flags & XFS_BMAPI_REMAP) || whichfork == XFS_DATA_FORK);
 	ASSERT(!(flags & XFS_BMAPI_PREALLOC) || !(flags & XFS_BMAPI_REMAP));
 	ASSERT(!(flags & XFS_BMAPI_CONVERT) || !(flags & XFS_BMAPI_REMAP));
-	ASSERT(!(flags & XFS_BMAPI_PREALLOC) || whichfork != XFS_COW_FORK);
-	ASSERT(!(flags & XFS_BMAPI_CONVERT) || whichfork != XFS_COW_FORK);
 
 	/* zeroing is for currently only for data extents, not metadata */
 	ASSERT((flags & (XFS_BMAPI_METADATA | XFS_BMAPI_ZERO)) !=
@@ -4655,22 +4713,44 @@ xfs_bmapi_write(
 	bma.firstblock = firstblock;
 
 	while (bno < end && n < *nmap) {
-		inhole = eof || bma.got.br_startoff > bno;
-		wasdelay = !inhole && isnullstartblock(bma.got.br_startblock);
+		bool			need_alloc = false, wasdelay = false;
 
-		/*
-		 * Make sure we only reflink into a hole.
-		 */
-		if (flags & XFS_BMAPI_REMAP)
-			ASSERT(inhole);
-		if (flags & XFS_BMAPI_COWFORK)
-			ASSERT(!inhole);
+		/* in hole or beyoned EOF? */
+		if (eof || bma.got.br_startoff > bno) {
+			if (flags & XFS_BMAPI_DELALLOC) {
+				/*
+				 * For the COW fork we can reasonably get a
+				 * request for converting an extent that races
+				 * with other threads already having converted
+				 * part of it, as there converting COW to
+				 * regular blocks is not protected using the
+				 * IOLOCK.
+				 */
+				ASSERT(flags & XFS_BMAPI_COWFORK);
+				if (!(flags & XFS_BMAPI_COWFORK)) {
+					error = -EIO;
+					goto error0;
+				}
+
+				if (eof || bno >= end)
+					break;
+			} else {
+				need_alloc = true;
+			}
+		} else {
+			/*
+			 * Make sure we only reflink into a hole.
+			 */
+			ASSERT(!(flags & XFS_BMAPI_REMAP));
+			if (isnullstartblock(bma.got.br_startblock))
+				wasdelay = true;
+		}
 
 		/*
 		 * First, deal with the hole before the allocated space
 		 * that we found, if any.
 		 */
-		if (inhole || wasdelay) {
+		if (need_alloc || wasdelay) {
 			bma.eof = eof;
 			bma.conv = !!(flags & XFS_BMAPI_CONVERT);
 			bma.wasdel = wasdelay;
@@ -4733,7 +4813,7 @@ xfs_bmapi_write(
 
 		/* Else go on to the next record. */
 		bma.prev = bma.got;
-		if (++bma.idx < ifp->if_bytes / sizeof(xfs_bmbt_rec_t)) {
+		if (++bma.idx < xfs_iext_count(ifp)) {
 			xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma.idx),
 					 &bma.got);
 		} else
@@ -4781,13 +4861,9 @@ error0:
 	if (bma.cur) {
 		if (!error) {
 			ASSERT(*firstblock == NULLFSBLOCK ||
-			       XFS_FSB_TO_AGNO(mp, *firstblock) ==
+			       XFS_FSB_TO_AGNO(mp, *firstblock) <=
 			       XFS_FSB_TO_AGNO(mp,
-				       bma.cur->bc_private.b.firstblock) ||
-			       (dfops->dop_low &&
-				XFS_FSB_TO_AGNO(mp, *firstblock) <
-				XFS_FSB_TO_AGNO(mp,
-					bma.cur->bc_private.b.firstblock)));
+				       bma.cur->bc_private.b.firstblock));
 			*firstblock = bma.cur->bc_private.b.firstblock;
 		}
 		xfs_btree_del_cursor(bma.cur,
@@ -4822,34 +4898,59 @@ xfs_bmap_split_indlen(
 	xfs_filblks_t			len2 = *indlen2;
 	xfs_filblks_t			nres = len1 + len2; /* new total res. */
 	xfs_filblks_t			stolen = 0;
+	xfs_filblks_t			resfactor;
 
 	/*
 	 * Steal as many blocks as we can to try and satisfy the worst case
 	 * indlen for both new extents.
 	 */
-	while (nres > ores && avail) {
-		nres--;
-		avail--;
-		stolen++;
-	}
+	if (ores < nres && avail)
+		stolen = XFS_FILBLKS_MIN(nres - ores, avail);
+	ores += stolen;
+
+	 /* nothing else to do if we've satisfied the new reservation */
+	if (ores >= nres)
+		return stolen;
 
 	/*
-	 * The only blocks available are those reserved for the original
-	 * extent and what we can steal from the extent being removed.
-	 * If this still isn't enough to satisfy the combined
-	 * requirements for the two new extents, skim blocks off of each
-	 * of the new reservations until they match what is available.
+	 * We can't meet the total required reservation for the two extents.
+	 * Calculate the percent of the overall shortage between both extents
+	 * and apply this percentage to each of the requested indlen values.
+	 * This distributes the shortage fairly and reduces the chances that one
+	 * of the two extents is left with nothing when extents are repeatedly
+	 * split.
 	 */
-	while (nres > ores) {
-		if (len1) {
-			len1--;
-			nres--;
+	resfactor = (ores * 100);
+	do_div(resfactor, nres);
+	len1 *= resfactor;
+	do_div(len1, 100);
+	len2 *= resfactor;
+	do_div(len2, 100);
+	ASSERT(len1 + len2 <= ores);
+	ASSERT(len1 < *indlen1 && len2 < *indlen2);
+
+	/*
+	 * Hand out the remainder to each extent. If one of the two reservations
+	 * is zero, we want to make sure that one gets a block first. The loop
+	 * below starts with len1, so hand len2 a block right off the bat if it
+	 * is zero.
+	 */
+	ores -= (len1 + len2);
+	ASSERT((*indlen1 - len1) + (*indlen2 - len2) >= ores);
+	if (ores && !len2 && *indlen2) {
+		len2++;
+		ores--;
+	}
+	while (ores) {
+		if (len1 < *indlen1) {
+			len1++;
+			ores--;
 		}
-		if (nres == ores)
+		if (!ores)
 			break;
-		if (len2) {
-			len2--;
-			nres--;
+		if (len2 < *indlen2) {
+			len2++;
+			ores--;
 		}
 	}
 
@@ -4885,7 +4986,7 @@ xfs_bmap_del_extent_delay(
 	da_new = 0;
 
 	ASSERT(*idx >= 0);
-	ASSERT(*idx < ifp->if_bytes / sizeof(struct xfs_bmbt_rec));
+	ASSERT(*idx <= xfs_iext_count(ifp));
 	ASSERT(del->br_blockcount > 0);
 	ASSERT(got->br_startoff <= del->br_startoff);
 	ASSERT(got_endoff >= del_endoff);
@@ -4902,8 +5003,11 @@ xfs_bmap_del_extent_delay(
 	 * sb counters as we might have to borrow some blocks for the
 	 * indirect block accounting.
 	 */
-	xfs_trans_reserve_quota_nblks(NULL, ip, -((long)del->br_blockcount), 0,
+	error = xfs_trans_reserve_quota_nblks(NULL, ip,
+			-((long)del->br_blockcount), 0,
 			isrt ? XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS);
+	if (error)
+		return error;
 	ip->i_delayed_blks -= del->br_blockcount;
 
 	if (whichfork == XFS_COW_FORK)
@@ -5013,7 +5117,7 @@ xfs_bmap_del_extent_cow(
 	got_endoff = got->br_startoff + got->br_blockcount;
 
 	ASSERT(*idx >= 0);
-	ASSERT(*idx < ifp->if_bytes / sizeof(struct xfs_bmbt_rec));
+	ASSERT(*idx <= xfs_iext_count(ifp));
 	ASSERT(del->br_blockcount > 0);
 	ASSERT(got->br_startoff <= del->br_startoff);
 	ASSERT(got_endoff >= del_endoff);
@@ -5119,8 +5223,7 @@ xfs_bmap_del_extent(
 		state |= BMAP_COWFORK;
 
 	ifp = XFS_IFORK_PTR(ip, whichfork);
-	ASSERT((*idx >= 0) && (*idx < ifp->if_bytes /
-		(uint)sizeof(xfs_bmbt_rec_t)));
+	ASSERT((*idx >= 0) && (*idx < xfs_iext_count(ifp)));
 	ASSERT(del->br_blockcount > 0);
 	ep = xfs_iext_get_ext(ifp, *idx);
 	xfs_bmbt_get_all(ep, &got);
@@ -5445,7 +5548,6 @@ __xfs_bunmapi(
 	int			logflags;	/* transaction logging flags */
 	xfs_extlen_t		mod;		/* rt extent offset */
 	xfs_mount_t		*mp;		/* mount structure */
-	xfs_extnum_t		nextents;	/* number of file extents */
 	xfs_bmbt_irec_t		prev;		/* previous extent record */
 	xfs_fileoff_t		start;		/* first file offset deleted */
 	int			tmp_logflags;	/* partial logging flags */
@@ -5453,6 +5555,8 @@ __xfs_bunmapi(
 	int			whichfork;	/* data or attribute fork */
 	xfs_fsblock_t		sum;
 	xfs_filblks_t		len = *rlen;	/* length to unmap in file */
+	xfs_fileoff_t		max_len;
+	xfs_agnumber_t		prev_agno = NULLAGNUMBER, agno;
 
 	trace_xfs_bunmap(ip, bno, len, flags, _RET_IP_);
 
@@ -5474,11 +5578,20 @@ __xfs_bunmapi(
 	ASSERT(len > 0);
 	ASSERT(nexts >= 0);
 
+	/*
+	 * Guesstimate how many blocks we can unmap without running the risk of
+	 * blowing out the transaction with a mix of EFIs and reflink
+	 * adjustments.
+	 */
+	if (xfs_is_reflink_inode(ip) && whichfork == XFS_DATA_FORK)
+		max_len = min(len, xfs_refcount_max_unmap(tp->t_log_res));
+	else
+		max_len = len;
+
 	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
 	    (error = xfs_iread_extents(tp, ip, whichfork)))
 		return error;
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
-	if (nextents == 0) {
+	if (xfs_iext_count(ifp) == 0) {
 		*rlen = 0;
 		return 0;
 	}
@@ -5520,7 +5633,7 @@ __xfs_bunmapi(
 
 	extno = 0;
 	while (bno != (xfs_fileoff_t)-1 && bno >= start && lastx >= 0 &&
-	       (nexts == 0 || extno < nexts)) {
+	       (nexts == 0 || extno < nexts) && max_len > 0) {
 		/*
 		 * Is the found extent after a hole in which bno lives?
 		 * Just back up to the previous extent, if so.
@@ -5546,6 +5659,17 @@ __xfs_bunmapi(
 		ASSERT(ep != NULL);
 		del = got;
 		wasdel = isnullstartblock(del.br_startblock);
+
+		/*
+		 * Make sure we don't touch multiple AGF headers out of order
+		 * in a single transaction, as that could cause AB-BA deadlocks.
+		 */
+		if (!wasdel) {
+			agno = XFS_FSB_TO_AGNO(mp, del.br_startblock);
+			if (prev_agno != NULLAGNUMBER && prev_agno > agno)
+				break;
+			prev_agno = agno;
+		}
 		if (got.br_startoff < start) {
 			del.br_startoff = start;
 			del.br_blockcount -= start - got.br_startoff;
@@ -5554,6 +5678,15 @@ __xfs_bunmapi(
 		}
 		if (del.br_startoff + del.br_blockcount > bno + 1)
 			del.br_blockcount = bno + 1 - del.br_startoff;
+
+		/* How much can we safely unmap? */
+		if (max_len < del.br_blockcount) {
+			del.br_startoff += del.br_blockcount - max_len;
+			if (!wasdel)
+				del.br_startblock += del.br_blockcount - max_len;
+			del.br_blockcount = max_len;
+		}
+
 		sum = del.br_startblock + del.br_blockcount;
 		if (isrt &&
 		    (mod = do_mod(sum, mp->m_sb.sb_rextsize))) {
@@ -5597,8 +5730,8 @@ __xfs_bunmapi(
 			}
 			del.br_state = XFS_EXT_UNWRITTEN;
 			error = xfs_bmap_add_extent_unwritten_real(tp, ip,
-					&lastx, &cur, &del, firstblock, dfops,
-					&logflags);
+					whichfork, &lastx, &cur, &del,
+					firstblock, dfops, &logflags);
 			if (error)
 				goto error0;
 			goto nodelete;
@@ -5655,8 +5788,9 @@ __xfs_bunmapi(
 				prev.br_state = XFS_EXT_UNWRITTEN;
 				lastx--;
 				error = xfs_bmap_add_extent_unwritten_real(tp,
-						ip, &lastx, &cur, &prev,
-						firstblock, dfops, &logflags);
+						ip, whichfork, &lastx, &cur,
+						&prev, firstblock, dfops,
+						&logflags);
 				if (error)
 					goto error0;
 				goto nodelete;
@@ -5664,8 +5798,9 @@ __xfs_bunmapi(
 				ASSERT(del.br_state == XFS_EXT_NORM);
 				del.br_state = XFS_EXT_UNWRITTEN;
 				error = xfs_bmap_add_extent_unwritten_real(tp,
-						ip, &lastx, &cur, &del,
-						firstblock, dfops, &logflags);
+						ip, whichfork, &lastx, &cur,
+						&del, firstblock, dfops,
+						&logflags);
 				if (error)
 					goto error0;
 				goto nodelete;
@@ -5732,6 +5867,7 @@ __xfs_bunmapi(
 		if (!isrt && wasdel)
 			xfs_mod_fdblocks(mp, (int64_t)del.br_blockcount, false);
 
+		max_len -= del.br_blockcount;
 		bno = del.br_startoff - 1;
 nodelete:
 		/*
@@ -5963,7 +6099,7 @@ xfs_bmse_shift_one(
 
 	mp = ip->i_mount;
 	ifp = XFS_IFORK_PTR(ip, whichfork);
-	total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t);
+	total_extents = xfs_iext_count(ifp);
 
 	xfs_bmbt_get_all(gotp, &got);
 
@@ -6140,7 +6276,7 @@ xfs_bmap_shift_extents(
 	 * are collapsing out, so we cannot use the count of real extents here.
 	 * Instead we have to calculate it from the incore fork.
 	 */
-	total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t);
+	total_extents = xfs_iext_count(ifp);
 	if (total_extents == 0) {
 		*done = 1;
 		goto del_cursor;
@@ -6200,7 +6336,7 @@ xfs_bmap_shift_extents(
 		 * count can change. Update the total and grade the next record.
 		 */
 		if (direction == SHIFT_LEFT) {
-			total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t);
+			total_extents = xfs_iext_count(ifp);
 			stop_extent = total_extents;
 		}
 
@@ -6501,25 +6637,33 @@ xfs_bmap_finish_one(
 	int				whichfork,
 	xfs_fileoff_t			startoff,
 	xfs_fsblock_t			startblock,
-	xfs_filblks_t			blockcount,
+	xfs_filblks_t			*blockcount,
 	xfs_exntst_t			state)
 {
 	struct xfs_bmbt_irec		bmap;
 	int				nimaps = 1;
 	xfs_fsblock_t			firstfsb;
 	int				flags = XFS_BMAPI_REMAP;
-	int				done;
 	int				error = 0;
 
 	bmap.br_startblock = startblock;
 	bmap.br_startoff = startoff;
-	bmap.br_blockcount = blockcount;
+	bmap.br_blockcount = *blockcount;
 	bmap.br_state = state;
 
+	/*
+	 * firstfsb is tied to the transaction lifetime and is used to
+	 * ensure correct AG locking order and schedule work item
+	 * continuations.  XFS_BUI_MAX_FAST_EXTENTS (== 1) restricts us
+	 * to only making one bmap call per transaction, so it should
+	 * be safe to have it as a local variable here.
+	 */
+	firstfsb = NULLFSBLOCK;
+
 	trace_xfs_bmap_deferred(tp->t_mountp,
 			XFS_FSB_TO_AGNO(tp->t_mountp, startblock), type,
 			XFS_FSB_TO_AGBNO(tp->t_mountp, startblock),
-			ip->i_ino, whichfork, startoff, blockcount, state);
+			ip->i_ino, whichfork, startoff, *blockcount, state);
 
 	if (whichfork != XFS_DATA_FORK && whichfork != XFS_ATTR_FORK)
 		return -EFSCORRUPTED;
@@ -6538,12 +6682,11 @@ xfs_bmap_finish_one(
 					bmap.br_blockcount, flags, &firstfsb,
 					bmap.br_blockcount, &bmap, &nimaps,
 					dfops);
+		*blockcount = 0;
 		break;
 	case XFS_BMAP_UNMAP:
-		error = xfs_bunmapi(tp, ip, bmap.br_startoff,
-				bmap.br_blockcount, flags, 1, &firstfsb,
-				dfops, &done);
-		ASSERT(done);
+		error = __xfs_bunmapi(tp, ip, startoff, blockcount,
+				XFS_BMAPI_REMAP, 1, &firstfsb, dfops);
 		break;
 	default:
 		ASSERT(0);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_bmap.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_bmap.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_bmap.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_bmap.h	2017-09-27 08:40:05.000000000 -0400
@@ -110,6 +110,9 @@ struct xfs_extent_free_item
 /* Map something in the CoW fork. */
 #define XFS_BMAPI_COWFORK	0x200
 
+/* Only convert delalloc space, don't allocate entirely new extents */
+#define XFS_BMAPI_DELALLOC	0x400
+
 #define XFS_BMAPI_FLAGS \
 	{ XFS_BMAPI_ENTIRE,	"ENTIRE" }, \
 	{ XFS_BMAPI_METADATA,	"METADATA" }, \
@@ -120,7 +123,8 @@ struct xfs_extent_free_item
 	{ XFS_BMAPI_CONVERT,	"CONVERT" }, \
 	{ XFS_BMAPI_ZERO,	"ZERO" }, \
 	{ XFS_BMAPI_REMAP,	"REMAP" }, \
-	{ XFS_BMAPI_COWFORK,	"COWFORK" }
+	{ XFS_BMAPI_COWFORK,	"COWFORK" }, \
+	{ XFS_BMAPI_DELALLOC,	"DELALLOC" }
 
 
 static inline int xfs_bmapi_aflag(int w)
@@ -242,9 +246,8 @@ struct xfs_bmbt_rec_host *
 		int fork, int *eofp, xfs_extnum_t *lastxp,
 		struct xfs_bmbt_irec *gotp, struct xfs_bmbt_irec *prevp);
 int	xfs_bmapi_reserve_delalloc(struct xfs_inode *ip, int whichfork,
-		xfs_fileoff_t aoff, xfs_filblks_t len,
-		struct xfs_bmbt_irec *got, struct xfs_bmbt_irec *prev,
-		xfs_extnum_t *lastx, int eof);
+		xfs_fileoff_t off, xfs_filblks_t len, xfs_filblks_t prealloc,
+		struct xfs_bmbt_irec *got, xfs_extnum_t *lastx, int eof);
 
 enum xfs_bmap_intent_type {
 	XFS_BMAP_MAP = 1,
@@ -262,7 +265,7 @@ struct xfs_bmap_intent {
 int	xfs_bmap_finish_one(struct xfs_trans *tp, struct xfs_defer_ops *dfops,
 		struct xfs_inode *ip, enum xfs_bmap_intent_type type,
 		int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock,
-		xfs_filblks_t blockcount, xfs_exntst_t state);
+		xfs_filblks_t *blockcount, xfs_exntst_t state);
 int	xfs_bmap_map_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
 		struct xfs_inode *ip, struct xfs_bmbt_irec *imap);
 int	xfs_bmap_unmap_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_btree.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_btree.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -714,7 +714,8 @@ xfs_btree_firstrec(
 	 * Get the block pointer for this level.
 	 */
 	block = xfs_btree_get_block(cur, level, &bp);
-	xfs_btree_check_block(cur, block, level, bp);
+	if (xfs_btree_check_block(cur, block, level, bp))
+		return 0;
 	/*
 	 * It's empty, there is no such record.
 	 */
@@ -743,7 +744,8 @@ xfs_btree_lastrec(
 	 * Get the block pointer for this level.
 	 */
 	block = xfs_btree_get_block(cur, level, &bp);
-	xfs_btree_check_block(cur, block, level, bp);
+	if (xfs_btree_check_block(cur, block, level, bp))
+		return 0;
 	/*
 	 * It's empty, there is no such record.
 	 */
@@ -810,7 +812,8 @@ xfs_btree_read_bufl(
 	xfs_daddr_t		d;		/* real disk block address */
 	int			error;
 
-	ASSERT(fsbno != NULLFSBLOCK);
+	if (!XFS_FSB_SANITY_CHECK(mp, fsbno))
+		return -EFSCORRUPTED;
 	d = XFS_FSB_TO_DADDR(mp, fsbno);
 	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d,
 				   mp->m_bsize, lock, &bp, ops);
@@ -1769,8 +1772,29 @@ xfs_btree_lookup_get_block(
 	if (error)
 		return error;
 
+	/* Check the inode owner since the verifiers don't. */
+	if (xfs_sb_version_hascrc(&cur->bc_mp->m_sb) &&
+	    !(cur->bc_private.b.flags & XFS_BTCUR_BPRV_INVALID_OWNER) &&
+	    (cur->bc_flags & XFS_BTREE_LONG_PTRS) &&
+	    be64_to_cpu((*blkp)->bb_u.l.bb_owner) !=
+			cur->bc_private.b.ip->i_ino)
+		goto out_bad;
+
+	/* Did we get the level we were looking for? */
+	if (be16_to_cpu((*blkp)->bb_level) != level)
+		goto out_bad;
+
+	/* Check that internal nodes have at least one record. */
+	if (level != 0 && be16_to_cpu((*blkp)->bb_numrecs) == 0)
+		goto out_bad;
+
 	xfs_btree_setbuf(cur, level, bp);
 	return 0;
+
+out_bad:
+	*blkp = NULL;
+	xfs_trans_brelse(cur->bc_tp, bp);
+	return -EFSCORRUPTED;
 }
 
 /*
@@ -4355,7 +4379,7 @@ xfs_btree_visit_blocks(
 			xfs_btree_readahead_ptr(cur, ptr, 1);
 
 			/* save for the next iteration of the loop */
-			lptr = *ptr;
+			xfs_btree_copy_ptrs(cur, &lptr, ptr, 1);
 		}
 
 		/* for each buffer in the level */
@@ -4411,10 +4435,15 @@ xfs_btree_block_change_owner(
 
 	/* modify the owner */
 	block = xfs_btree_get_block(cur, level, &bp);
-	if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
+	if (cur->bc_flags & XFS_BTREE_LONG_PTRS) {
+		if (block->bb_u.l.bb_owner == cpu_to_be64(bbcoi->new_owner))
+			return 0;
 		block->bb_u.l.bb_owner = cpu_to_be64(bbcoi->new_owner);
-	else
+	} else {
+		if (block->bb_u.s.bb_owner == cpu_to_be32(bbcoi->new_owner))
+			return 0;
 		block->bb_u.s.bb_owner = cpu_to_be32(bbcoi->new_owner);
+	}
 
 	/*
 	 * If the block is a root block hosted in an inode, we might not have a
@@ -4423,16 +4452,19 @@ xfs_btree_block_change_owner(
 	 * block is formatted into the on-disk inode fork. We still change it,
 	 * though, so everything is consistent in memory.
 	 */
-	if (bp) {
-		if (cur->bc_tp) {
-			xfs_trans_ordered_buf(cur->bc_tp, bp);
+	if (!bp) {
+		ASSERT(cur->bc_flags & XFS_BTREE_ROOT_IN_INODE);
+		ASSERT(level == cur->bc_nlevels - 1);
+		return 0;
+	}
+
+	if (cur->bc_tp) {
+		if (!xfs_trans_ordered_buf(cur->bc_tp, bp)) {
 			xfs_btree_log_block(cur, bp, XFS_BB_OWNER);
-		} else {
-			xfs_buf_delwri_queue(bp, bbcoi->buffer_list);
+			return -EAGAIN;
 		}
 	} else {
-		ASSERT(cur->bc_flags & XFS_BTREE_ROOT_IN_INODE);
-		ASSERT(level == cur->bc_nlevels - 1);
+		xfs_buf_delwri_queue(bp, bbcoi->buffer_list);
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_btree.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_btree.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_btree.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_btree.h	2017-09-27 08:40:05.000000000 -0400
@@ -268,7 +268,8 @@ typedef struct xfs_btree_cur
 			short		forksize;	/* fork's inode space */
 			char		whichfork;	/* data or attr fork */
 			char		flags;		/* flags */
-#define	XFS_BTCUR_BPRV_WASDEL	1			/* was delayed */
+#define	XFS_BTCUR_BPRV_WASDEL		(1<<0)		/* was delayed */
+#define	XFS_BTCUR_BPRV_INVALID_OWNER	(1<<1)		/* for ext swap */
 		} b;
 	}		bc_private;	/* per-btree type data */
 } xfs_btree_cur_t;
@@ -491,7 +492,7 @@ static inline int xfs_btree_get_level(st
 #define	XFS_FILBLKS_MAX(a,b)	max_t(xfs_filblks_t, (a), (b))
 
 #define	XFS_FSB_SANITY_CHECK(mp,fsb)	\
-	(XFS_FSB_TO_AGNO(mp, fsb) < mp->m_sb.sb_agcount && \
+	(fsb && XFS_FSB_TO_AGNO(mp, fsb) < mp->m_sb.sb_agcount && \
 		XFS_FSB_TO_AGBNO(mp, fsb) < mp->m_sb.sb_agblocks)
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_da_btree.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_da_btree.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_da_btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_da_btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -263,7 +263,7 @@ xfs_da3_node_read(
 
 	err = xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
 					which_fork, &xfs_da3_node_buf_ops);
-	if (!err && tp) {
+	if (!err && tp && *bpp) {
 		struct xfs_da_blkinfo	*info = (*bpp)->b_addr;
 		int			type;
 
@@ -2633,7 +2633,7 @@ out_free:
 /*
  * Readahead the dir/attr block.
  */
-xfs_daddr_t
+int
 xfs_da_reada_buf(
 	struct xfs_inode	*dp,
 	xfs_dablk_t		bno,
@@ -2664,7 +2664,5 @@ out_free:
 	if (mapp != &map)
 		kmem_free(mapp);
 
-	if (error)
-		return -1;
-	return mappedbno;
+	return error;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_da_btree.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_da_btree.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_da_btree.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_da_btree.h	2017-09-27 08:40:05.000000000 -0400
@@ -201,7 +201,7 @@ int	xfs_da_read_buf(struct xfs_trans *tr
 			       xfs_dablk_t bno, xfs_daddr_t mappedbno,
 			       struct xfs_buf **bpp, int whichfork,
 			       const struct xfs_buf_ops *ops);
-xfs_daddr_t	xfs_da_reada_buf(struct xfs_inode *dp, xfs_dablk_t bno,
+int	xfs_da_reada_buf(struct xfs_inode *dp, xfs_dablk_t bno,
 				xfs_daddr_t mapped_bno, int whichfork,
 				const struct xfs_buf_ops *ops);
 int	xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_block.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_block.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_block.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_block.c	2017-09-27 08:40:05.000000000 -0400
@@ -139,7 +139,7 @@ xfs_dir3_block_read(
 
 	err = xfs_da_read_buf(tp, dp, mp->m_dir_geo->datablk, -1, bpp,
 				XFS_DATA_FORK, &xfs_dir3_block_buf_ops);
-	if (!err && tp)
+	if (!err && tp && *bpp)
 		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_BLOCK_BUF);
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,21 +36,29 @@
 struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR };
 
 /*
- * @mode, if set, indicates that the type field needs to be set up.
- * This uses the transformation from file mode to DT_* as defined in linux/fs.h
- * for file type specification. This will be propagated into the directory
- * structure if appropriate for the given operation and filesystem config.
+ * Convert inode mode to directory entry filetype
  */
-const unsigned char xfs_mode_to_ftype[S_IFMT >> S_SHIFT] = {
-	[0]			= XFS_DIR3_FT_UNKNOWN,
-	[S_IFREG >> S_SHIFT]    = XFS_DIR3_FT_REG_FILE,
-	[S_IFDIR >> S_SHIFT]    = XFS_DIR3_FT_DIR,
-	[S_IFCHR >> S_SHIFT]    = XFS_DIR3_FT_CHRDEV,
-	[S_IFBLK >> S_SHIFT]    = XFS_DIR3_FT_BLKDEV,
-	[S_IFIFO >> S_SHIFT]    = XFS_DIR3_FT_FIFO,
-	[S_IFSOCK >> S_SHIFT]   = XFS_DIR3_FT_SOCK,
-	[S_IFLNK >> S_SHIFT]    = XFS_DIR3_FT_SYMLINK,
-};
+unsigned char xfs_mode_to_ftype(int mode)
+{
+	switch (mode & S_IFMT) {
+	case S_IFREG:
+		return XFS_DIR3_FT_REG_FILE;
+	case S_IFDIR:
+		return XFS_DIR3_FT_DIR;
+	case S_IFCHR:
+		return XFS_DIR3_FT_CHRDEV;
+	case S_IFBLK:
+		return XFS_DIR3_FT_BLKDEV;
+	case S_IFIFO:
+		return XFS_DIR3_FT_FIFO;
+	case S_IFSOCK:
+		return XFS_DIR3_FT_SOCK;
+	case S_IFLNK:
+		return XFS_DIR3_FT_SYMLINK;
+	default:
+		return XFS_DIR3_FT_UNKNOWN;
+	}
+}
 
 /*
  * ASCII case-insensitive (ie. A-Z) support for directories that was
@@ -631,7 +639,8 @@ xfs_dir2_isblock(
 	if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK)))
 		return rval;
 	rval = XFS_FSB_TO_B(args->dp->i_mount, last) == args->geo->blksize;
-	ASSERT(rval == 0 || args->dp->i_d.di_size == args->geo->blksize);
+	if (rval != 0 && args->dp->i_d.di_size != args->geo->blksize)
+		return -EFSCORRUPTED;
 	*vp = rval;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_data.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_data.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_data.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_data.c	2017-09-27 08:40:05.000000000 -0400
@@ -329,7 +329,7 @@ xfs_dir3_data_read(
 
 	err = xfs_da_read_buf(tp, dp, bno, mapped_bno, bpp,
 				XFS_DATA_FORK, &xfs_dir3_data_buf_ops);
-	if (!err && tp)
+	if (!err && tp && *bpp)
 		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_DATA_BUF);
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2.h	2017-09-27 08:40:05.000000000 -0400
@@ -18,6 +18,9 @@
 #ifndef __XFS_DIR2_H__
 #define __XFS_DIR2_H__
 
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+
 struct xfs_defer_ops;
 struct xfs_da_args;
 struct xfs_inode;
@@ -32,10 +35,9 @@ struct xfs_dir2_data_unused;
 extern struct xfs_name	xfs_name_dotdot;
 
 /*
- * directory filetype conversion tables.
+ * Convert inode mode to directory entry filetype
  */
-#define S_SHIFT 12
-extern const unsigned char xfs_mode_to_ftype[];
+extern unsigned char xfs_mode_to_ftype(int mode);
 
 /*
  * directory operations vector for encode/decode routines
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_leaf.c	2017-09-27 08:40:05.000000000 -0400
@@ -268,7 +268,7 @@ xfs_dir3_leaf_read(
 
 	err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
 				XFS_DATA_FORK, &xfs_dir3_leaf1_buf_ops);
-	if (!err && tp)
+	if (!err && tp && *bpp)
 		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAF1_BUF);
 	return err;
 }
@@ -285,7 +285,7 @@ xfs_dir3_leafn_read(
 
 	err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
 				XFS_DATA_FORK, &xfs_dir3_leafn_buf_ops);
-	if (!err && tp)
+	if (!err && tp && *bpp)
 		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_LEAFN_BUF);
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_node.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_node.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_node.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_node.c	2017-09-27 08:40:05.000000000 -0400
@@ -155,6 +155,42 @@ const struct xfs_buf_ops xfs_dir3_free_b
 	.verify_write = xfs_dir3_free_write_verify,
 };
 
+/* Everything ok in the free block header? */
+static bool
+xfs_dir3_free_header_check(
+	struct xfs_inode	*dp,
+	xfs_dablk_t		fbno,
+	struct xfs_buf		*bp)
+{
+	struct xfs_mount	*mp = dp->i_mount;
+	unsigned int		firstdb;
+	int			maxbests;
+
+	maxbests = dp->d_ops->free_max_bests(mp->m_dir_geo);
+	firstdb = (xfs_dir2_da_to_db(mp->m_dir_geo, fbno) -
+		   xfs_dir2_byte_to_db(mp->m_dir_geo, XFS_DIR2_FREE_OFFSET)) *
+			maxbests;
+	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+		struct xfs_dir3_free_hdr *hdr3 = bp->b_addr;
+
+		if (be32_to_cpu(hdr3->firstdb) != firstdb)
+			return false;
+		if (be32_to_cpu(hdr3->nvalid) > maxbests)
+			return false;
+		if (be32_to_cpu(hdr3->nvalid) < be32_to_cpu(hdr3->nused))
+			return false;
+	} else {
+		struct xfs_dir2_free_hdr *hdr = bp->b_addr;
+
+		if (be32_to_cpu(hdr->firstdb) != firstdb)
+			return false;
+		if (be32_to_cpu(hdr->nvalid) > maxbests)
+			return false;
+		if (be32_to_cpu(hdr->nvalid) < be32_to_cpu(hdr->nused))
+			return false;
+	}
+	return true;
+}
 
 static int
 __xfs_dir3_free_read(
@@ -168,11 +204,22 @@ __xfs_dir3_free_read(
 
 	err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
 				XFS_DATA_FORK, &xfs_dir3_free_buf_ops);
+	if (err || !*bpp)
+		return err;
+
+	/* Check things that we can't do in the verifier. */
+	if (!xfs_dir3_free_header_check(dp, fbno, *bpp)) {
+		xfs_buf_ioerror(*bpp, -EFSCORRUPTED);
+		xfs_verifier_error(*bpp);
+		xfs_trans_brelse(tp, *bpp);
+		return -EFSCORRUPTED;
+	}
 
 	/* try read returns without an error or *bpp if it lands in a hole */
-	if (!err && tp && *bpp)
+	if (tp)
 		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_FREE_BUF);
-	return err;
+
+	return 0;
 }
 
 int
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_priv.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_priv.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_priv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_priv.h	2017-09-27 08:40:05.000000000 -0400
@@ -126,6 +126,7 @@ extern int xfs_dir2_sf_create(struct xfs
 extern int xfs_dir2_sf_lookup(struct xfs_da_args *args);
 extern int xfs_dir2_sf_removename(struct xfs_da_args *args);
 extern int xfs_dir2_sf_replace(struct xfs_da_args *args);
+extern int xfs_dir2_sf_verify(struct xfs_inode *ip);
 
 /* xfs_dir2_readdir.c */
 extern int xfs_readdir(struct xfs_inode *dp, struct dir_context *ctx,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_sf.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_sf.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_dir2_sf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_dir2_sf.c	2017-09-27 08:40:05.000000000 -0400
@@ -629,6 +629,112 @@ xfs_dir2_sf_check(
 }
 #endif	/* DEBUG */
 
+/* Verify the consistency of an inline directory. */
+int
+xfs_dir2_sf_verify(
+	struct xfs_inode		*ip)
+{
+	struct xfs_mount		*mp = ip->i_mount;
+	struct xfs_dir2_sf_hdr		*sfp;
+	struct xfs_dir2_sf_entry	*sfep;
+	struct xfs_dir2_sf_entry	*next_sfep;
+	char				*endp;
+	const struct xfs_dir_ops	*dops;
+	struct xfs_ifork		*ifp;
+	xfs_ino_t			ino;
+	int				i;
+	int				i8count;
+	int				offset;
+	int				size;
+	int				error;
+	__uint8_t			filetype;
+
+	ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_LOCAL);
+	/*
+	 * xfs_iread calls us before xfs_setup_inode sets up ip->d_ops,
+	 * so we can only trust the mountpoint to have the right pointer.
+	 */
+	dops = xfs_dir_get_ops(mp, NULL);
+
+	ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+	sfp = (struct xfs_dir2_sf_hdr *)ifp->if_u1.if_data;
+	size = ifp->if_bytes;
+
+	/*
+	 * Give up if the directory is way too short.
+	 */
+	if (size <= offsetof(struct xfs_dir2_sf_hdr, parent) ||
+	    size < xfs_dir2_sf_hdr_size(sfp->i8count))
+		return -EFSCORRUPTED;
+
+	endp = (char *)sfp + size;
+
+	/* Check .. entry */
+	ino = dops->sf_get_parent_ino(sfp);
+	i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
+	error = xfs_dir_ino_validate(mp, ino);
+	if (error)
+		return error;
+	offset = dops->data_first_offset;
+
+	/* Check all reported entries */
+	sfep = xfs_dir2_sf_firstentry(sfp);
+	for (i = 0; i < sfp->count; i++) {
+		/*
+		 * struct xfs_dir2_sf_entry has a variable length.
+		 * Check the fixed-offset parts of the structure are
+		 * within the data buffer.
+		 */
+		if (((char *)sfep + sizeof(*sfep)) >= endp)
+			return -EFSCORRUPTED;
+
+		/* Don't allow names with known bad length. */
+		if (sfep->namelen == 0)
+			return -EFSCORRUPTED;
+
+		/*
+		 * Check that the variable-length part of the structure is
+		 * within the data buffer.  The next entry starts after the
+		 * name component, so nextentry is an acceptable test.
+		 */
+		next_sfep = dops->sf_nextentry(sfp, sfep);
+		if (endp < (char *)next_sfep)
+			return -EFSCORRUPTED;
+
+		/* Check that the offsets always increase. */
+		if (xfs_dir2_sf_get_offset(sfep) < offset)
+			return -EFSCORRUPTED;
+
+		/* Check the inode number. */
+		ino = dops->sf_get_ino(sfp, sfep);
+		i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
+		error = xfs_dir_ino_validate(mp, ino);
+		if (error)
+			return error;
+
+		/* Check the file type. */
+		filetype = dops->sf_get_ftype(sfep);
+		if (filetype >= XFS_DIR3_FT_MAX)
+			return -EFSCORRUPTED;
+
+		offset = xfs_dir2_sf_get_offset(sfep) +
+				dops->data_entsize(sfep->namelen);
+
+		sfep = next_sfep;
+	}
+	if (i8count != sfp->i8count)
+		return -EFSCORRUPTED;
+	if ((void *)sfep != (void *)endp)
+		return -EFSCORRUPTED;
+
+	/* Make sure this whole thing ought to be in local format. */
+	if (offset + (sfp->count + 2) * (uint)sizeof(xfs_dir2_leaf_entry_t) +
+	    (uint)sizeof(xfs_dir2_block_tail_t) > mp->m_dir_geo->blksize)
+		return -EFSCORRUPTED;
+
+	return 0;
+}
+
 /*
  * Create a new (shortform) directory.
  */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ialloc_btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -82,11 +82,12 @@ xfs_finobt_set_root(
 }
 
 STATIC int
-xfs_inobt_alloc_block(
+__xfs_inobt_alloc_block(
 	struct xfs_btree_cur	*cur,
 	union xfs_btree_ptr	*start,
 	union xfs_btree_ptr	*new,
-	int			*stat)
+	int			*stat,
+	enum xfs_ag_resv_type	resv)
 {
 	xfs_alloc_arg_t		args;		/* block allocation args */
 	int			error;		/* error return value */
@@ -103,6 +104,7 @@ xfs_inobt_alloc_block(
 	args.maxlen = 1;
 	args.prod = 1;
 	args.type = XFS_ALLOCTYPE_NEAR_BNO;
+	args.resv = resv;
 
 	error = xfs_alloc_vextent(&args);
 	if (error) {
@@ -123,6 +125,27 @@ xfs_inobt_alloc_block(
 }
 
 STATIC int
+xfs_inobt_alloc_block(
+	struct xfs_btree_cur	*cur,
+	union xfs_btree_ptr	*start,
+	union xfs_btree_ptr	*new,
+	int			*stat)
+{
+	return __xfs_inobt_alloc_block(cur, start, new, stat, XFS_AG_RESV_NONE);
+}
+
+STATIC int
+xfs_finobt_alloc_block(
+	struct xfs_btree_cur	*cur,
+	union xfs_btree_ptr	*start,
+	union xfs_btree_ptr	*new,
+	int			*stat)
+{
+	return __xfs_inobt_alloc_block(cur, start, new, stat,
+			XFS_AG_RESV_METADATA);
+}
+
+STATIC int
 xfs_inobt_free_block(
 	struct xfs_btree_cur	*cur,
 	struct xfs_buf		*bp)
@@ -328,7 +351,7 @@ static const struct xfs_btree_ops xfs_fi
 
 	.dup_cursor		= xfs_inobt_dup_cursor,
 	.set_root		= xfs_finobt_set_root,
-	.alloc_block		= xfs_inobt_alloc_block,
+	.alloc_block		= xfs_finobt_alloc_block,
 	.free_block		= xfs_inobt_free_block,
 	.get_minrecs		= xfs_inobt_get_minrecs,
 	.get_maxrecs		= xfs_inobt_get_maxrecs,
@@ -357,7 +380,7 @@ xfs_inobt_init_cursor(
 	struct xfs_agi		*agi = XFS_BUF_TO_AGI(agbp);
 	struct xfs_btree_cur	*cur;
 
-	cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_SLEEP);
+	cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_NOFS);
 
 	cur->bc_tp = tp;
 	cur->bc_mp = mp;
@@ -478,3 +501,64 @@ xfs_inobt_rec_check_count(
 	return 0;
 }
 #endif	/* DEBUG */
+
+static xfs_extlen_t
+xfs_inobt_max_size(
+	struct xfs_mount	*mp)
+{
+	/* Bail out if we're uninitialized, which can happen in mkfs. */
+	if (mp->m_inobt_mxr[0] == 0)
+		return 0;
+
+	return xfs_btree_calc_size(mp, mp->m_inobt_mnr,
+		(uint64_t)mp->m_sb.sb_agblocks * mp->m_sb.sb_inopblock /
+				XFS_INODES_PER_CHUNK);
+}
+
+static int
+xfs_inobt_count_blocks(
+	struct xfs_mount	*mp,
+	xfs_agnumber_t		agno,
+	xfs_btnum_t		btnum,
+	xfs_extlen_t		*tree_blocks)
+{
+	struct xfs_buf		*agbp;
+	struct xfs_btree_cur	*cur;
+	int			error;
+
+	error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
+	if (error)
+		return error;
+
+	cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno, btnum);
+	error = xfs_btree_count_blocks(cur, tree_blocks);
+	xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
+	xfs_buf_relse(agbp);
+
+	return error;
+}
+
+/*
+ * Figure out how many blocks to reserve and how many are used by this btree.
+ */
+int
+xfs_finobt_calc_reserves(
+	struct xfs_mount	*mp,
+	xfs_agnumber_t		agno,
+	xfs_extlen_t		*ask,
+	xfs_extlen_t		*used)
+{
+	xfs_extlen_t		tree_len = 0;
+	int			error;
+
+	if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+		return 0;
+
+	error = xfs_inobt_count_blocks(mp, agno, XFS_BTNUM_FINO, &tree_len);
+	if (error)
+		return error;
+
+	*ask += xfs_inobt_max_size(mp);
+	*used += tree_len;
+	return 0;
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ialloc_btree.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ialloc_btree.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ialloc_btree.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ialloc_btree.h	2017-09-27 08:40:05.000000000 -0400
@@ -72,4 +72,7 @@ int xfs_inobt_rec_check_count(struct xfs
 #define xfs_inobt_rec_check_count(mp, rec)	0
 #endif	/* DEBUG */
 
+int xfs_finobt_calc_reserves(struct xfs_mount *mp, xfs_agnumber_t agno,
+		xfs_extlen_t *ask, xfs_extlen_t *used);
+
 #endif	/* __XFS_IALLOC_BTREE_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ialloc.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ialloc.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_ialloc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_ialloc.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,8 +51,7 @@ xfs_ialloc_cluster_alignment(
 	struct xfs_mount	*mp)
 {
 	if (xfs_sb_version_hasalign(&mp->m_sb) &&
-	    mp->m_sb.sb_inoalignmt >=
-			XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
+	    mp->m_sb.sb_inoalignmt >= xfs_icluster_size_fsb(mp))
 		return mp->m_sb.sb_inoalignmt;
 	return 1;
 }
@@ -369,8 +368,6 @@ xfs_ialloc_inode_init(
 				 * transaction and pin the log appropriately.
 				 */
 				xfs_trans_ordered_buf(tp, fbuf);
-				xfs_trans_log_buf(tp, fbuf, 0,
-						  BBTOB(fbuf->b_length) - 1);
 			}
 		} else {
 			fbuf->b_flags |= XBF_DONE;
@@ -1124,6 +1121,7 @@ xfs_dialloc_ag_inobt(
 	int			error;
 	int			offset;
 	int			i, j;
+	int			searchdistance = 10;
 
 	pag = xfs_perag_get(mp, agno);
 
@@ -1150,7 +1148,6 @@ xfs_dialloc_ag_inobt(
 	if (pagno == agno) {
 		int		doneleft;	/* done, to the left */
 		int		doneright;	/* done, to the right */
-		int		searchdistance = 10;
 
 		error = xfs_inobt_lookup(cur, pagino, XFS_LOOKUP_LE, &i);
 		if (error)
@@ -1211,21 +1208,9 @@ xfs_dialloc_ag_inobt(
 		/*
 		 * Loop until we find an inode chunk with a free inode.
 		 */
-		while (!doneleft || !doneright) {
+		while (--searchdistance > 0 && (!doneleft || !doneright)) {
 			int	useleft;  /* using left inode chunk this time */
 
-			if (!--searchdistance) {
-				/*
-				 * Not in range - save last search
-				 * location and allocate a new inode
-				 */
-				xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
-				pag->pagl_leftrec = trec.ir_startino;
-				pag->pagl_rightrec = rec.ir_startino;
-				pag->pagl_pagino = pagino;
-				goto newino;
-			}
-
 			/* figure out the closer block if both are valid. */
 			if (!doneleft && !doneright) {
 				useleft = pagino -
@@ -1237,13 +1222,13 @@ xfs_dialloc_ag_inobt(
 
 			/* free inodes to the left? */
 			if (useleft && trec.ir_freecount) {
-				rec = trec;
 				xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
 				cur = tcur;
 
 				pag->pagl_leftrec = trec.ir_startino;
 				pag->pagl_rightrec = rec.ir_startino;
 				pag->pagl_pagino = pagino;
+				rec = trec;
 				goto alloc_inode;
 			}
 
@@ -1269,26 +1254,37 @@ xfs_dialloc_ag_inobt(
 				goto error1;
 		}
 
-		/*
-		 * We've reached the end of the btree. because
-		 * we are only searching a small chunk of the
-		 * btree each search, there is obviously free
-		 * inodes closer to the parent inode than we
-		 * are now. restart the search again.
-		 */
-		pag->pagl_pagino = NULLAGINO;
-		pag->pagl_leftrec = NULLAGINO;
-		pag->pagl_rightrec = NULLAGINO;
-		xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
-		xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
-		goto restart_pagno;
+		if (searchdistance <= 0) {
+			/*
+			 * Not in range - save last search
+			 * location and allocate a new inode
+			 */
+			xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+			pag->pagl_leftrec = trec.ir_startino;
+			pag->pagl_rightrec = rec.ir_startino;
+			pag->pagl_pagino = pagino;
+
+		} else {
+			/*
+			 * We've reached the end of the btree. because
+			 * we are only searching a small chunk of the
+			 * btree each search, there is obviously free
+			 * inodes closer to the parent inode than we
+			 * are now. restart the search again.
+			 */
+			pag->pagl_pagino = NULLAGINO;
+			pag->pagl_leftrec = NULLAGINO;
+			pag->pagl_rightrec = NULLAGINO;
+			xfs_btree_del_cursor(tcur, XFS_BTREE_NOERROR);
+			xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+			goto restart_pagno;
+		}
 	}
 
 	/*
 	 * In a different AG from the parent.
 	 * See if the most recently allocated block has any free.
 	 */
-newino:
 	if (agi->agi_newino != cpu_to_be32(NULLAGINO)) {
 		error = xfs_inobt_lookup(cur, be32_to_cpu(agi->agi_newino),
 					 XFS_LOOKUP_EQ, &i);
@@ -2450,8 +2446,6 @@ xfs_ialloc_log_agi(
 	ASSERT(agi->agi_magicnum == cpu_to_be32(XFS_AGI_MAGIC));
 #endif
 
-	xfs_trans_buf_set_type(tp, bp, XFS_BLFT_AGI_BUF);
-
 	/*
 	 * Compute byte offsets for the first and last fields in the first
 	 * region and log the agi buffer. This only logs up through
@@ -2512,8 +2506,15 @@ xfs_agi_verify(
 	if (!XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum)))
 		return false;
 
-	if (be32_to_cpu(agi->agi_level) > XFS_BTREE_MAXLEVELS)
+	if (be32_to_cpu(agi->agi_level) < 1 ||
+	    be32_to_cpu(agi->agi_level) > XFS_BTREE_MAXLEVELS)
 		return false;
+
+	if (xfs_sb_version_hasfinobt(&mp->m_sb) &&
+	    (be32_to_cpu(agi->agi_free_level) < 1 ||
+	     be32_to_cpu(agi->agi_free_level) > XFS_BTREE_MAXLEVELS))
+		return false;
+
 	/*
 	 * during growfs operations, the perag is not fully initialised,
 	 * so we can't use it for any useful checking. growfs ensures we can't
@@ -2592,6 +2593,8 @@ xfs_read_agi(
 			XFS_FSS_TO_BB(mp, 1), 0, bpp, &xfs_agi_buf_ops);
 	if (error)
 		return error;
+	if (tp)
+		xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_AGI_BUF);
 
 	xfs_buf_set_ref(*bpp, XFS_AGI_REF);
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_inode_buf.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_inode_buf.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_inode_buf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_inode_buf.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,6 +29,7 @@
 #include "xfs_icache.h"
 #include "xfs_trans.h"
 #include "xfs_ialloc.h"
+#include "xfs_dir2.h"
 
 /*
  * Check that none of the inode's in the buffer have a next
@@ -386,12 +387,25 @@ xfs_dinode_verify(
 	struct xfs_inode	*ip,
 	struct xfs_dinode	*dip)
 {
+	uint16_t		mode;
 	uint16_t		flags;
 	uint64_t		flags2;
 
 	if (dip->di_magic != cpu_to_be16(XFS_DINODE_MAGIC))
 		return false;
 
+	/* don't allow invalid i_size */
+	if (be64_to_cpu(dip->di_size) & (1ULL << 63))
+		return false;
+
+	mode = be16_to_cpu(dip->di_mode);
+	if (mode && xfs_mode_to_ftype(mode) == XFS_DIR3_FT_UNKNOWN)
+		return false;
+
+	/* No zero-length symlinks/dirs. */
+	if ((S_ISLNK(mode) || S_ISDIR(mode)) && dip->di_size == 0)
+		return false;
+
 	/* only version 3 or greater inodes are extensively verified here */
 	if (dip->di_version < 3)
 		return true;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_inode_fork.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_inode_fork.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_inode_fork.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_inode_fork.c	2017-09-27 08:40:05.000000000 -0400
@@ -26,12 +26,15 @@
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
+#include "xfs_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_attr_sf.h"
 #include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2_priv.h"
 
 kmem_zone_t *xfs_ifork_zone;
 
@@ -209,6 +212,16 @@ xfs_iformat_fork(
 	if (error)
 		return error;
 
+	/* Check inline dir contents. */
+	if (S_ISDIR(VFS_I(ip)->i_mode) &&
+	    dip->di_format == XFS_DINODE_FMT_LOCAL) {
+		error = xfs_dir2_sf_verify(ip);
+		if (error) {
+			xfs_idestroy_fork(ip, XFS_DATA_FORK);
+			return error;
+		}
+	}
+
 	if (xfs_is_reflink_inode(ip)) {
 		ASSERT(ip->i_cowfp == NULL);
 		xfs_ifork_init_cow(ip);
@@ -319,7 +332,6 @@ xfs_iformat_local(
 	int		whichfork,
 	int		size)
 {
-
 	/*
 	 * If the size is unreasonable, then something
 	 * is wrong and we just bail out rather than crash in
@@ -429,11 +441,13 @@ xfs_iformat_btree(
 	/* REFERENCED */
 	int			nrecs;
 	int			size;
+	int			level;
 
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	dfp = (xfs_bmdr_block_t *)XFS_DFORK_PTR(dip, whichfork);
 	size = XFS_BMAP_BROOT_SPACE(mp, dfp);
 	nrecs = be16_to_cpu(dfp->bb_numrecs);
+	level = be16_to_cpu(dfp->bb_level);
 
 	/*
 	 * blow out if -- fork has less extents than can fit in
@@ -446,7 +460,8 @@ xfs_iformat_btree(
 					XFS_IFORK_MAXEXT(ip, whichfork) ||
 		     XFS_BMDR_SPACE_CALC(nrecs) >
 					XFS_DFORK_SIZE(dip, mp, whichfork) ||
-		     XFS_IFORK_NEXTENTS(ip, whichfork) > ip->i_d.di_nblocks)) {
+		     XFS_IFORK_NEXTENTS(ip, whichfork) > ip->i_d.di_nblocks) ||
+		     level == 0 || level > XFS_BTREE_MAXLEVELS) {
 		xfs_warn(mp, "corrupt inode %Lu (btree).",
 					(unsigned long long) ip->i_ino);
 		XFS_CORRUPTION_ERROR("xfs_iformat_btree", XFS_ERRLEVEL_LOW,
@@ -497,15 +512,14 @@ xfs_iread_extents(
 	 * We know that the size is valid (it's checked in iformat_btree)
 	 */
 	ifp->if_bytes = ifp->if_real_bytes = 0;
-	ifp->if_flags |= XFS_IFEXTENTS;
 	xfs_iext_add(ifp, 0, nextents);
 	error = xfs_bmap_read_extents(tp, ip, whichfork);
 	if (error) {
 		xfs_iext_destroy(ifp);
-		ifp->if_flags &= ~XFS_IFEXTENTS;
 		return error;
 	}
 	xfs_validate_extents(ifp, nextents, XFS_EXTFMT_INODE(ip));
+	ifp->if_flags |= XFS_IFEXTENTS;
 	return 0;
 }
 /*
@@ -775,6 +789,13 @@ xfs_idestroy_fork(
 	}
 }
 
+/* Count number of incore extents based on if_bytes */
+xfs_extnum_t
+xfs_iext_count(struct xfs_ifork *ifp)
+{
+	return ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+}
+
 /*
  * Convert in-core extents to on-disk form
  *
@@ -803,7 +824,7 @@ xfs_iextents_copy(
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
 	ASSERT(ifp->if_bytes > 0);
 
-	nrecs = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nrecs = xfs_iext_count(ifp);
 	XFS_BMAP_TRACE_EXLIST(ip, nrecs, whichfork);
 	ASSERT(nrecs > 0);
 
@@ -941,7 +962,7 @@ xfs_iext_get_ext(
 	xfs_extnum_t	idx)		/* index of target extent */
 {
 	ASSERT(idx >= 0);
-	ASSERT(idx < ifp->if_bytes / sizeof(xfs_bmbt_rec_t));
+	ASSERT(idx < xfs_iext_count(ifp));
 
 	if ((ifp->if_flags & XFS_IFEXTIREC) && (idx == 0)) {
 		return ifp->if_u1.if_ext_irec->er_extbuf;
@@ -1017,7 +1038,7 @@ xfs_iext_add(
 	int		new_size;	/* size of extents after adding */
 	xfs_extnum_t	nextents;	/* number of extents in file */
 
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	ASSERT((idx >= 0) && (idx <= nextents));
 	byte_diff = ext_diff * sizeof(xfs_bmbt_rec_t);
 	new_size = ifp->if_bytes + byte_diff;
@@ -1241,7 +1262,7 @@ xfs_iext_remove(
 	trace_xfs_iext_remove(ip, idx, state, _RET_IP_);
 
 	ASSERT(ext_diff > 0);
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	new_size = (nextents - ext_diff) * sizeof(xfs_bmbt_rec_t);
 
 	if (new_size == 0) {
@@ -1270,7 +1291,7 @@ xfs_iext_remove_inline(
 
 	ASSERT(!(ifp->if_flags & XFS_IFEXTIREC));
 	ASSERT(idx < XFS_INLINE_EXTS);
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	ASSERT(((nextents - ext_diff) > 0) &&
 		(nextents - ext_diff) < XFS_INLINE_EXTS);
 
@@ -1309,7 +1330,7 @@ xfs_iext_remove_direct(
 	ASSERT(!(ifp->if_flags & XFS_IFEXTIREC));
 	new_size = ifp->if_bytes -
 		(ext_diff * sizeof(xfs_bmbt_rec_t));
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 
 	if (new_size == 0) {
 		xfs_iext_destroy(ifp);
@@ -1518,14 +1539,11 @@ xfs_iext_realloc_indirect(
 	xfs_ifork_t	*ifp,		/* inode fork pointer */
 	int		new_size)	/* new indirection array size */
 {
-	int		nlists;		/* number of irec's (ex lists) */
-	int		size;		/* current indirection array size */
-
 	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	size = nlists * sizeof(xfs_ext_irec_t);
 	ASSERT(ifp->if_real_bytes);
-	ASSERT((new_size >= 0) && (new_size != size));
+	ASSERT((new_size >= 0) &&
+	       (new_size != ((ifp->if_real_bytes / XFS_IEXT_BUFSZ) *
+			     sizeof(xfs_ext_irec_t))));
 	if (new_size == 0) {
 		xfs_iext_destroy(ifp);
 	} else {
@@ -1546,7 +1564,7 @@ xfs_iext_indirect_to_direct(
 	int		size;		/* size of file extents */
 
 	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	ASSERT(nextents <= XFS_LINEAR_EXTS);
 	size = nextents * sizeof(xfs_bmbt_rec_t);
 
@@ -1620,7 +1638,7 @@ xfs_iext_bno_to_ext(
 	xfs_extnum_t	nextents;	/* number of file extents */
 	xfs_fileoff_t	startoff = 0;	/* start offset of extent */
 
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	if (nextents == 0) {
 		*idxp = 0;
 		return NULL;
@@ -1733,8 +1751,8 @@ xfs_iext_idx_to_irec(
 
 	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
 	ASSERT(page_idx >= 0);
-	ASSERT(page_idx <= ifp->if_bytes / sizeof(xfs_bmbt_rec_t));
-	ASSERT(page_idx < ifp->if_bytes / sizeof(xfs_bmbt_rec_t) || realloc);
+	ASSERT(page_idx <= xfs_iext_count(ifp));
+	ASSERT(page_idx < xfs_iext_count(ifp) || realloc);
 
 	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
 	erp_idx = 0;
@@ -1782,7 +1800,7 @@ xfs_iext_irec_init(
 	xfs_extnum_t	nextents;	/* number of extents in file */
 
 	ASSERT(!(ifp->if_flags & XFS_IFEXTIREC));
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	ASSERT(nextents <= XFS_LINEAR_EXTS);
 
 	erp = kmem_alloc(sizeof(xfs_ext_irec_t), KM_NOFS);
@@ -1906,7 +1924,7 @@ xfs_iext_irec_compact(
 
 	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
 	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 
 	if (nextents == 0) {
 		xfs_iext_destroy(ifp);
@@ -1996,3 +2014,49 @@ xfs_ifork_init_cow(
 	ip->i_cformat = XFS_DINODE_FMT_EXTENTS;
 	ip->i_cnextents = 0;
 }
+
+/*
+ * Lookup the extent covering bno.
+ *
+ * If there is an extent covering bno return the extent index, and store the
+ * expanded extent structure in *gotp, and the extent index in *idx.
+ * If there is no extent covering bno, but there is an extent after it (e.g.
+ * it lies in a hole) return that extent in *gotp and its index in *idx
+ * instead.
+ * If bno is beyond the last extent return false, and return the index after
+ * the last valid index in *idxp.
+ */
+bool
+xfs_iext_lookup_extent(
+	struct xfs_inode	*ip,
+	struct xfs_ifork	*ifp,
+	xfs_fileoff_t		bno,
+	xfs_extnum_t		*idxp,
+	struct xfs_bmbt_irec	*gotp)
+{
+	struct xfs_bmbt_rec_host *ep;
+
+	XFS_STATS_INC(ip->i_mount, xs_look_exlist);
+
+	ep = xfs_iext_bno_to_ext(ifp, bno, idxp);
+	if (!ep)
+		return false;
+	xfs_bmbt_get_all(ep, gotp);
+	return true;
+}
+
+/*
+ * Return true if there is an extent at index idx, and return the expanded
+ * extent structure at idx in that case.  Else return false.
+ */
+bool
+xfs_iext_get_extent(
+	struct xfs_ifork	*ifp,
+	xfs_extnum_t		idx,
+	struct xfs_bmbt_irec	*gotp)
+{
+	if (idx < 0 || idx >= xfs_iext_count(ifp))
+		return false;
+	xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), gotp);
+	return true;
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_inode_fork.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_inode_fork.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_inode_fork.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_inode_fork.h	2017-09-27 08:40:05.000000000 -0400
@@ -152,6 +152,7 @@ void		xfs_init_local_fork(struct xfs_ino
 
 struct xfs_bmbt_rec_host *
 		xfs_iext_get_ext(struct xfs_ifork *, xfs_extnum_t);
+xfs_extnum_t	xfs_iext_count(struct xfs_ifork *);
 void		xfs_iext_insert(struct xfs_inode *, xfs_extnum_t, xfs_extnum_t,
 				struct xfs_bmbt_irec *, int);
 void		xfs_iext_add(struct xfs_ifork *, xfs_extnum_t, int);
@@ -181,6 +182,12 @@ void		xfs_iext_irec_compact_pages(struct
 void		xfs_iext_irec_compact_full(struct xfs_ifork *);
 void		xfs_iext_irec_update_extoffs(struct xfs_ifork *, int, int);
 
+bool		xfs_iext_lookup_extent(struct xfs_inode *ip,
+			struct xfs_ifork *ifp, xfs_fileoff_t bno,
+			xfs_extnum_t *idxp, struct xfs_bmbt_irec *gotp);
+bool		xfs_iext_get_extent(struct xfs_ifork *ifp, xfs_extnum_t idx,
+			struct xfs_bmbt_irec *gotp);
+
 extern struct kmem_zone	*xfs_ifork_zone;
 
 extern void xfs_ifork_init_cow(struct xfs_inode *ip);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount_btree.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount_btree.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount_btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount_btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -408,13 +408,14 @@ xfs_refcountbt_calc_size(
  */
 xfs_extlen_t
 xfs_refcountbt_max_size(
-	struct xfs_mount	*mp)
+	struct xfs_mount	*mp,
+	xfs_agblock_t		agblocks)
 {
 	/* Bail out if we're uninitialized, which can happen in mkfs. */
 	if (mp->m_refc_mxr[0] == 0)
 		return 0;
 
-	return xfs_refcountbt_calc_size(mp, mp->m_sb.sb_agblocks);
+	return xfs_refcountbt_calc_size(mp, agblocks);
 }
 
 /*
@@ -429,22 +430,24 @@ xfs_refcountbt_calc_reserves(
 {
 	struct xfs_buf		*agbp;
 	struct xfs_agf		*agf;
+	xfs_agblock_t		agblocks;
 	xfs_extlen_t		tree_len;
 	int			error;
 
 	if (!xfs_sb_version_hasreflink(&mp->m_sb))
 		return 0;
 
-	*ask += xfs_refcountbt_max_size(mp);
 
 	error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agbp);
 	if (error)
 		return error;
 
 	agf = XFS_BUF_TO_AGF(agbp);
+	agblocks = be32_to_cpu(agf->agf_length);
 	tree_len = be32_to_cpu(agf->agf_refcount_blocks);
 	xfs_buf_relse(agbp);
 
+	*ask += xfs_refcountbt_max_size(mp, agblocks);
 	*used += tree_len;
 
 	return error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount_btree.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount_btree.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount_btree.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount_btree.h	2017-09-27 08:40:05.000000000 -0400
@@ -66,7 +66,8 @@ extern void xfs_refcountbt_compute_maxle
 
 extern xfs_extlen_t xfs_refcountbt_calc_size(struct xfs_mount *mp,
 		unsigned long long len);
-extern xfs_extlen_t xfs_refcountbt_max_size(struct xfs_mount *mp);
+extern xfs_extlen_t xfs_refcountbt_max_size(struct xfs_mount *mp,
+		xfs_agblock_t agblocks);
 
 extern int xfs_refcountbt_calc_reserves(struct xfs_mount *mp,
 		xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount.c	2017-09-27 08:40:05.000000000 -0400
@@ -784,14 +784,6 @@ xfs_refcount_merge_extents(
 }
 
 /*
- * While we're adjusting the refcounts records of an extent, we have
- * to keep an eye on the number of extents we're dirtying -- run too
- * many in a single transaction and we'll exceed the transaction's
- * reservation and crash the fs.  Each record adds 12 bytes to the
- * log (plus any key updates) so we'll conservatively assume 24 bytes
- * per record.  We must also leave space for btree splits on both ends
- * of the range and space for the CUD and a new CUI.
- *
  * XXX: This is a pretty hand-wavy estimate.  The penalty for guessing
  * true incorrectly is a shutdown FS; the penalty for guessing false
  * incorrectly is more transaction rolls than might be necessary.
@@ -822,7 +814,7 @@ xfs_refcount_still_have_space(
 	else if (overhead > cur->bc_tp->t_log_res)
 		return false;
 	return  cur->bc_tp->t_log_res - overhead >
-		cur->bc_private.a.priv.refc.nr_ops * 32;
+		cur->bc_private.a.priv.refc.nr_ops * XFS_REFCOUNT_ITEM_OVERHEAD;
 }
 
 /*
@@ -1629,13 +1621,32 @@ xfs_refcount_recover_cow_leftovers(
 	if (mp->m_sb.sb_agblocks >= XFS_REFC_COW_START)
 		return -EOPNOTSUPP;
 
-	error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agbp);
+	INIT_LIST_HEAD(&debris);
+
+	/*
+	 * In this first part, we use an empty transaction to gather up
+	 * all the leftover CoW extents so that we can subsequently
+	 * delete them.  The empty transaction is used to avoid
+	 * a buffer lock deadlock if there happens to be a loop in the
+	 * refcountbt because we're allowed to re-grab a buffer that is
+	 * already attached to our transaction.  When we're done
+	 * recording the CoW debris we cancel the (empty) transaction
+	 * and everything goes away cleanly.
+	 */
+	error = xfs_trans_alloc_empty(mp, &tp);
 	if (error)
 		return error;
-	cur = xfs_refcountbt_init_cursor(mp, NULL, agbp, agno, NULL);
+
+	error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
+	if (error)
+		goto out_trans;
+	if (!agbp) {
+		error = -ENOMEM;
+		goto out_trans;
+	}
+	cur = xfs_refcountbt_init_cursor(mp, tp, agbp, agno, NULL);
 
 	/* Find all the leftover CoW staging extents. */
-	INIT_LIST_HEAD(&debris);
 	memset(&low, 0, sizeof(low));
 	memset(&high, 0, sizeof(high));
 	low.rc.rc_startblock = XFS_REFC_COW_START;
@@ -1645,10 +1656,11 @@ xfs_refcount_recover_cow_leftovers(
 	if (error)
 		goto out_cursor;
 	xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
-	xfs_buf_relse(agbp);
+	xfs_trans_brelse(tp, agbp);
+	xfs_trans_cancel(tp);
 
 	/* Now iterate the list to free the leftovers */
-	list_for_each_entry(rr, &debris, rr_list) {
+	list_for_each_entry_safe(rr, n, &debris, rr_list) {
 		/* Set up transaction. */
 		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, 0, 0, 0, &tp);
 		if (error)
@@ -1676,8 +1688,16 @@ xfs_refcount_recover_cow_leftovers(
 		error = xfs_trans_commit(tp);
 		if (error)
 			goto out_free;
+
+		list_del(&rr->rr_list);
+		kmem_free(rr);
 	}
 
+	return error;
+out_defer:
+	xfs_defer_cancel(&dfops);
+out_trans:
+	xfs_trans_cancel(tp);
 out_free:
 	/* Free the leftover list */
 	list_for_each_entry_safe(rr, n, &debris, rr_list) {
@@ -1688,11 +1708,6 @@ out_free:
 
 out_cursor:
 	xfs_btree_del_cursor(cur, XFS_BTREE_ERROR);
-	xfs_buf_relse(agbp);
-	goto out_free;
-
-out_defer:
-	xfs_defer_cancel(&dfops);
-	xfs_trans_cancel(tp);
-	goto out_free;
+	xfs_trans_brelse(tp, agbp);
+	goto out_trans;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_refcount.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_refcount.h	2017-09-27 08:40:05.000000000 -0400
@@ -67,4 +67,20 @@ extern int xfs_refcount_free_cow_extent(
 extern int xfs_refcount_recover_cow_leftovers(struct xfs_mount *mp,
 		xfs_agnumber_t agno);
 
+/*
+ * While we're adjusting the refcounts records of an extent, we have
+ * to keep an eye on the number of extents we're dirtying -- run too
+ * many in a single transaction and we'll exceed the transaction's
+ * reservation and crash the fs.  Each record adds 12 bytes to the
+ * log (plus any key updates) so we'll conservatively assume 32 bytes
+ * per record.  We must also leave space for btree splits on both ends
+ * of the range and space for the CUD and a new CUI.
+ */
+#define XFS_REFCOUNT_ITEM_OVERHEAD	32
+
+static inline xfs_fileoff_t xfs_refcount_max_unmap(int log_res)
+{
+	return (log_res * 3 / 4) / XFS_REFCOUNT_ITEM_OVERHEAD;
+}
+
 #endif	/* __XFS_REFCOUNT_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_rmap_btree.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_rmap_btree.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_rmap_btree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_rmap_btree.c	2017-09-27 08:40:05.000000000 -0400
@@ -549,13 +549,14 @@ xfs_rmapbt_calc_size(
  */
 xfs_extlen_t
 xfs_rmapbt_max_size(
-	struct xfs_mount	*mp)
+	struct xfs_mount	*mp,
+	xfs_agblock_t		agblocks)
 {
 	/* Bail out if we're uninitialized, which can happen in mkfs. */
 	if (mp->m_rmap_mxr[0] == 0)
 		return 0;
 
-	return xfs_rmapbt_calc_size(mp, mp->m_sb.sb_agblocks);
+	return xfs_rmapbt_calc_size(mp, agblocks);
 }
 
 /*
@@ -570,25 +571,24 @@ xfs_rmapbt_calc_reserves(
 {
 	struct xfs_buf		*agbp;
 	struct xfs_agf		*agf;
-	xfs_extlen_t		pool_len;
+	xfs_agblock_t		agblocks;
 	xfs_extlen_t		tree_len;
 	int			error;
 
 	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
 		return 0;
 
-	/* Reserve 1% of the AG or enough for 1 block per record. */
-	pool_len = max(mp->m_sb.sb_agblocks / 100, xfs_rmapbt_max_size(mp));
-	*ask += pool_len;
-
 	error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agbp);
 	if (error)
 		return error;
 
 	agf = XFS_BUF_TO_AGF(agbp);
+	agblocks = be32_to_cpu(agf->agf_length);
 	tree_len = be32_to_cpu(agf->agf_rmap_blocks);
 	xfs_buf_relse(agbp);
 
+	/* Reserve 1% of the AG or enough for 1 block per record. */
+	*ask += max(agblocks / 100, xfs_rmapbt_max_size(mp, agblocks));
 	*used += tree_len;
 
 	return error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_rmap_btree.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_rmap_btree.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_rmap_btree.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_rmap_btree.h	2017-09-27 08:40:05.000000000 -0400
@@ -60,7 +60,8 @@ extern void xfs_rmapbt_compute_maxlevels
 
 extern xfs_extlen_t xfs_rmapbt_calc_size(struct xfs_mount *mp,
 		unsigned long long len);
-extern xfs_extlen_t xfs_rmapbt_max_size(struct xfs_mount *mp);
+extern xfs_extlen_t xfs_rmapbt_max_size(struct xfs_mount *mp,
+		xfs_agblock_t agblocks);
 
 extern int xfs_rmapbt_calc_reserves(struct xfs_mount *mp,
 		xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_sb.c linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_sb.c
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_sb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_sb.c	2017-09-27 08:40:05.000000000 -0400
@@ -242,7 +242,7 @@ xfs_mount_validate_sb(
 	    sbp->sb_blocklog < XFS_MIN_BLOCKSIZE_LOG			||
 	    sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG			||
 	    sbp->sb_blocksize != (1 << sbp->sb_blocklog)		||
-	    sbp->sb_dirblklog > XFS_MAX_BLOCKSIZE_LOG			||
+	    sbp->sb_dirblklog + sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG ||
 	    sbp->sb_inodesize < XFS_DINODE_MIN_SIZE			||
 	    sbp->sb_inodesize > XFS_DINODE_MAX_SIZE			||
 	    sbp->sb_inodelog < XFS_DINODE_MIN_LOG			||
@@ -262,6 +262,12 @@ xfs_mount_validate_sb(
 		return -EFSCORRUPTED;
 	}
 
+	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	    sbp->sb_blocksize < XFS_MIN_CRC_BLOCKSIZE) {
+		xfs_notice(mp, "v5 SB sanity check failed");
+		return -EFSCORRUPTED;
+	}
+
 	/*
 	 * Until this is fixed only page-sized or smaller data blocks work.
 	 */
@@ -338,13 +344,16 @@ xfs_sb_quota_from_disk(struct xfs_sb *sb
 					XFS_PQUOTA_CHKD : XFS_GQUOTA_CHKD;
 	sbp->sb_qflags &= ~(XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD);
 
-	if (sbp->sb_qflags & XFS_PQUOTA_ACCT)  {
+	if (sbp->sb_qflags & XFS_PQUOTA_ACCT &&
+	    sbp->sb_gquotino != NULLFSINO)  {
 		/*
 		 * In older version of superblock, on-disk superblock only
 		 * has sb_gquotino, and in-core superblock has both sb_gquotino
 		 * and sb_pquotino. But, only one of them is supported at any
 		 * point of time. So, if PQUOTA is set in disk superblock,
-		 * copy over sb_gquotino to sb_pquotino.
+		 * copy over sb_gquotino to sb_pquotino.  The NULLFSINO test
+		 * above is to make sure we don't do this twice and wipe them
+		 * both out!
 		 */
 		sbp->sb_pquotino = sbp->sb_gquotino;
 		sbp->sb_gquotino = NULLFSINO;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_trans_space.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_trans_space.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_trans_space.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_trans_space.h	2017-09-27 08:40:05.000000000 -0400
@@ -21,8 +21,20 @@
 /*
  * Components of space reservations.
  */
+
+/* Worst case number of rmaps that can be held in a block. */
 #define XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)    \
 		(((mp)->m_rmap_mxr[0]) - ((mp)->m_rmap_mnr[0]))
+
+/* Adding one rmap could split every level up to the top of the tree. */
+#define XFS_RMAPADD_SPACE_RES(mp) ((mp)->m_rmap_maxlevels)
+
+/* Blocks we might need to add "b" rmaps to a tree. */
+#define XFS_NRMAPADD_SPACE_RES(mp, b)\
+	(((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \
+	  XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \
+	  XFS_RMAPADD_SPACE_RES(mp))
+
 #define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)    \
 		(((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0]))
 #define	XFS_EXTENTADD_SPACE_RES(mp,w)	(XFS_BM_MAXLEVELS(mp,w) - 1)
@@ -30,13 +42,12 @@
 	(((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
 	  XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
 	  XFS_EXTENTADD_SPACE_RES(mp,w))
+
+/* Blocks we might need to add "b" mappings & rmappings to a file. */
 #define XFS_SWAP_RMAP_SPACE_RES(mp,b,w)\
-	(((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
-	  XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
-	  XFS_EXTENTADD_SPACE_RES(mp,w) + \
-	 ((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \
-	  XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \
-	  (mp)->m_rmap_maxlevels)
+	(XFS_NEXTENTADD_SPACE_RES((mp), (b), (w)) + \
+	 XFS_NRMAPADD_SPACE_RES((mp), (b)))
+
 #define	XFS_DAENTER_1B(mp,w)	\
 	((w) == XFS_DATA_FORK ? (mp)->m_dir_geo->fsbcount : 1)
 #define	XFS_DAENTER_DBS(mp,w)	\
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_types.h linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_types.h
--- linux-libre-4.9-gnu/fs/xfs/libxfs/xfs_types.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/libxfs/xfs_types.h	2017-09-27 08:40:05.000000000 -0400
@@ -75,11 +75,14 @@ typedef __int64_t	xfs_sfiloff_t;	/* sign
  * Minimum and maximum blocksize and sectorsize.
  * The blocksize upper limit is pretty much arbitrary.
  * The sectorsize upper limit is due to sizeof(sb_sectsize).
+ * CRC enable filesystems use 512 byte inodes, meaning 512 byte block sizes
+ * cannot be used.
  */
 #define XFS_MIN_BLOCKSIZE_LOG	9	/* i.e. 512 bytes */
 #define XFS_MAX_BLOCKSIZE_LOG	16	/* i.e. 65536 bytes */
 #define XFS_MIN_BLOCKSIZE	(1 << XFS_MIN_BLOCKSIZE_LOG)
 #define XFS_MAX_BLOCKSIZE	(1 << XFS_MAX_BLOCKSIZE_LOG)
+#define XFS_MIN_CRC_BLOCKSIZE	(1 << (XFS_MIN_BLOCKSIZE_LOG + 1))
 #define XFS_MIN_SECTORSIZE_LOG	9	/* i.e. 512 bytes */
 #define XFS_MAX_SECTORSIZE_LOG	15	/* i.e. 32768 bytes */
 #define XFS_MIN_SECTORSIZE	(1 << XFS_MIN_SECTORSIZE_LOG)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_acl.c linux-libre-4.9.52-gnu/fs/xfs/xfs_acl.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_acl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_acl.c	2017-09-27 08:40:05.000000000 -0400
@@ -170,8 +170,8 @@ xfs_get_acl(struct inode *inode, int typ
 	return acl;
 }
 
-STATIC int
-__xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
+int
+__xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 {
 	struct xfs_inode *ip = XFS_I(inode);
 	unsigned char *ea_name;
@@ -268,5 +268,5 @@ xfs_set_acl(struct inode *inode, struct
 	}
 
  set_acl:
-	return __xfs_set_acl(inode, type, acl);
+	return __xfs_set_acl(inode, acl, type);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_acl.h linux-libre-4.9.52-gnu/fs/xfs/xfs_acl.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_acl.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_acl.h	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,7 @@ struct posix_acl;
 #ifdef CONFIG_XFS_POSIX_ACL
 extern struct posix_acl *xfs_get_acl(struct inode *inode, int type);
 extern int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+extern int __xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
 #else
 static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_aops.c linux-libre-4.9.52-gnu/fs/xfs/xfs_aops.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_aops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_aops.c	2017-09-27 08:40:05.000000000 -0400
@@ -90,11 +90,11 @@ xfs_find_bdev_for_inode(
  * associated buffer_heads, paying attention to the start and end offsets that
  * we need to process on the page.
  *
- * Landmine Warning: bh->b_end_io() will call end_page_writeback() on the last
- * buffer in the IO. Once it does this, it is unsafe to access the bufferhead or
- * the page at all, as we may be racing with memory reclaim and it can free both
- * the bufferhead chain and the page as it will see the page as clean and
- * unused.
+ * Note that we open code the action in end_buffer_async_write here so that we
+ * only have to iterate over the buffers attached to the page once.  This is not
+ * only more efficient, but also ensures that we only calls end_page_writeback
+ * at the end of the iteration, and thus avoids the pitfall of having the page
+ * and buffers potentially freed after every call to end_buffer_async_write.
  */
 static void
 xfs_finish_page_writeback(
@@ -102,29 +102,45 @@ xfs_finish_page_writeback(
 	struct bio_vec		*bvec,
 	int			error)
 {
-	unsigned int		end = bvec->bv_offset + bvec->bv_len - 1;
-	struct buffer_head	*head, *bh, *next;
+	struct buffer_head	*head = page_buffers(bvec->bv_page), *bh = head;
+	bool			busy = false;
 	unsigned int		off = 0;
-	unsigned int		bsize;
+	unsigned long		flags;
 
 	ASSERT(bvec->bv_offset < PAGE_SIZE);
-	ASSERT((bvec->bv_offset & ((1 << inode->i_blkbits) - 1)) == 0);
-	ASSERT(end < PAGE_SIZE);
-	ASSERT((bvec->bv_len & ((1 << inode->i_blkbits) - 1)) == 0);
-
-	bh = head = page_buffers(bvec->bv_page);
+	ASSERT((bvec->bv_offset & (i_blocksize(inode) - 1)) == 0);
+	ASSERT(bvec->bv_offset + bvec->bv_len <= PAGE_SIZE);
+	ASSERT((bvec->bv_len & (i_blocksize(inode) - 1)) == 0);
 
-	bsize = bh->b_size;
+	local_irq_save(flags);
+	bit_spin_lock(BH_Uptodate_Lock, &head->b_state);
 	do {
-		next = bh->b_this_page;
-		if (off < bvec->bv_offset)
-			goto next_bh;
-		if (off > end)
-			break;
-		bh->b_end_io(bh, !error);
-next_bh:
-		off += bsize;
-	} while ((bh = next) != head);
+		if (off >= bvec->bv_offset &&
+		    off < bvec->bv_offset + bvec->bv_len) {
+			ASSERT(buffer_async_write(bh));
+			ASSERT(bh->b_end_io == NULL);
+
+			if (error) {
+				mapping_set_error(bvec->bv_page->mapping, -EIO);
+				set_buffer_write_io_error(bh);
+				clear_buffer_uptodate(bh);
+				SetPageError(bvec->bv_page);
+			} else {
+				set_buffer_uptodate(bh);
+			}
+			clear_buffer_async_write(bh);
+			unlock_buffer(bh);
+		} else if (buffer_async_write(bh)) {
+			ASSERT(buffer_locked(bh));
+			busy = true;
+		}
+		off += bh->b_size;
+	} while ((bh = bh->b_this_page) != head);
+	bit_spin_unlock(BH_Uptodate_Lock, &head->b_state);
+	local_irq_restore(flags);
+
+	if (!busy)
+		end_page_writeback(bvec->bv_page);
 }
 
 /*
@@ -138,8 +154,10 @@ xfs_destroy_ioend(
 	int			error)
 {
 	struct inode		*inode = ioend->io_inode;
-	struct bio		*last = ioend->io_bio;
-	struct bio		*bio, *next;
+	struct bio		*bio = &ioend->io_inline_bio;
+	struct bio		*last = ioend->io_bio, *next;
+	u64			start = bio->bi_iter.bi_sector;
+	bool			quiet = bio_flagged(bio, BIO_QUIET);
 
 	for (bio = &ioend->io_inline_bio; bio; bio = next) {
 		struct bio_vec	*bvec;
@@ -160,6 +178,11 @@ xfs_destroy_ioend(
 
 		bio_put(bio);
 	}
+
+	if (unlikely(error && !quiet)) {
+		xfs_err_ratelimited(XFS_I(inode)->i_mount,
+			"writeback error on sector %llu", start);
+	}
 }
 
 /*
@@ -279,54 +302,49 @@ xfs_end_io(
 	struct xfs_ioend	*ioend =
 		container_of(work, struct xfs_ioend, io_work);
 	struct xfs_inode	*ip = XFS_I(ioend->io_inode);
+	xfs_off_t		offset = ioend->io_offset;
+	size_t			size = ioend->io_size;
 	int			error = ioend->io_bio->bi_error;
 
 	/*
-	 * Set an error if the mount has shut down and proceed with end I/O
-	 * processing so it can perform whatever cleanups are necessary.
+	 * Just clean up the in-memory strutures if the fs has been shut down.
 	 */
-	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
 		error = -EIO;
+		goto done;
+	}
 
 	/*
-	 * For a CoW extent, we need to move the mapping from the CoW fork
-	 * to the data fork.  If instead an error happened, just dump the
-	 * new blocks.
+	 * Clean up any COW blocks on an I/O error.
 	 */
-	if (ioend->io_type == XFS_IO_COW) {
-		if (error)
-			goto done;
-		if (ioend->io_bio->bi_error) {
-			error = xfs_reflink_cancel_cow_range(ip,
-					ioend->io_offset, ioend->io_size);
-			goto done;
+	if (unlikely(error)) {
+		switch (ioend->io_type) {
+		case XFS_IO_COW:
+			xfs_reflink_cancel_cow_range(ip, offset, size, true);
+			break;
 		}
-		error = xfs_reflink_end_cow(ip, ioend->io_offset,
-				ioend->io_size);
-		if (error)
-			goto done;
+
+		goto done;
 	}
 
 	/*
-	 * For unwritten extents we need to issue transactions to convert a
-	 * range to normal written extens after the data I/O has finished.
-	 * Detecting and handling completion IO errors is done individually
-	 * for each case as different cleanup operations need to be performed
-	 * on error.
+	 * Success:  commit the COW or unwritten blocks if needed.
 	 */
-	if (ioend->io_type == XFS_IO_UNWRITTEN) {
-		if (error)
-			goto done;
-		error = xfs_iomap_write_unwritten(ip, ioend->io_offset,
-						  ioend->io_size);
-	} else if (ioend->io_append_trans) {
-		error = xfs_setfilesize_ioend(ioend, error);
-	} else {
-		ASSERT(!xfs_ioend_is_append(ioend) ||
-		       ioend->io_type == XFS_IO_COW);
+	switch (ioend->io_type) {
+	case XFS_IO_COW:
+		error = xfs_reflink_end_cow(ip, offset, size);
+		break;
+	case XFS_IO_UNWRITTEN:
+		error = xfs_iomap_write_unwritten(ip, offset, size);
+		break;
+	default:
+		ASSERT(!xfs_ioend_is_append(ioend) || ioend->io_append_trans);
+		break;
 	}
 
 done:
+	if (ioend->io_append_trans)
+		error = xfs_setfilesize_ioend(ioend, error);
 	xfs_destroy_ioend(ioend, error);
 }
 
@@ -354,7 +372,7 @@ xfs_map_blocks(
 {
 	struct xfs_inode	*ip = XFS_I(inode);
 	struct xfs_mount	*mp = ip->i_mount;
-	ssize_t			count = 1 << inode->i_blkbits;
+	ssize_t			count = i_blocksize(inode);
 	xfs_fileoff_t		offset_fsb, end_fsb;
 	int			error = 0;
 	int			bmapi_flags = XFS_BMAPI_ENTIRE;
@@ -432,7 +450,8 @@ xfs_start_buffer_writeback(
 	ASSERT(!buffer_delay(bh));
 	ASSERT(!buffer_unwritten(bh));
 
-	mark_buffer_async_write(bh);
+	bh->b_end_io = NULL;
+	set_buffer_async_write(bh);
 	set_buffer_uptodate(bh);
 	clear_buffer_dirty(bh);
 }
@@ -486,6 +505,12 @@ xfs_submit_ioend(
 	struct xfs_ioend	*ioend,
 	int			status)
 {
+	/* Convert CoW extents to regular */
+	if (!status && ioend->io_type == XFS_IO_COW) {
+		status = xfs_reflink_convert_cow(XFS_I(ioend->io_inode),
+				ioend->io_offset, ioend->io_size);
+	}
+
 	/* Reserve log space if we might write beyond the on-disk inode size. */
 	if (!status &&
 	    ioend->io_type != XFS_IO_UNWRITTEN &&
@@ -758,7 +783,7 @@ xfs_aops_discard_page(
 			break;
 		}
 next_buffer:
-		offset += 1 << inode->i_blkbits;
+		offset += i_blocksize(inode);
 
 	} while ((bh = bh->b_this_page) != head);
 
@@ -846,7 +871,7 @@ xfs_writepage_map(
 	LIST_HEAD(submit_list);
 	struct xfs_ioend	*ioend, *next;
 	struct buffer_head	*bh, *head;
-	ssize_t			len = 1 << inode->i_blkbits;
+	ssize_t			len = i_blocksize(inode);
 	int			error = 0;
 	int			count = 0;
 	int			uptodate = 1;
@@ -1158,19 +1183,22 @@ xfs_vm_releasepage(
 	 * block_invalidatepage() can send pages that are still marked dirty
 	 * but otherwise have invalidated buffers.
 	 *
-	 * We've historically freed buffers on the latter. Instead, quietly
-	 * filter out all dirty pages to avoid spurious buffer state warnings.
-	 * This can likely be removed once shrink_active_list() is fixed.
+	 * We want to release the latter to avoid unnecessary buildup of the
+	 * LRU, skip the former and warn if we've left any lingering
+	 * delalloc/unwritten buffers on clean pages. Skip pages with delalloc
+	 * or unwritten buffers and warn if the page is not dirty. Otherwise
+	 * try to release the buffers.
 	 */
-	if (PageDirty(page))
-		return 0;
-
 	xfs_count_page_state(page, &delalloc, &unwritten);
 
-	if (WARN_ON_ONCE(delalloc))
+	if (delalloc) {
+		WARN_ON_ONCE(!PageDirty(page));
 		return 0;
-	if (WARN_ON_ONCE(unwritten))
+	}
+	if (unwritten) {
+		WARN_ON_ONCE(!PageDirty(page));
 		return 0;
+	}
 
 	return try_to_free_buffers(page);
 }
@@ -1246,7 +1274,7 @@ xfs_map_trim_size(
 	    offset + mapping_size >= i_size_read(inode)) {
 		/* limit mapping to block that spans EOF */
 		mapping_size = roundup_64(i_size_read(inode) - offset,
-					  1 << inode->i_blkbits);
+					  i_blocksize(inode));
 	}
 	if (mapping_size > LONG_MAX)
 		mapping_size = LONG_MAX;
@@ -1254,44 +1282,6 @@ xfs_map_trim_size(
 	bh_result->b_size = mapping_size;
 }
 
-/* Bounce unaligned directio writes to the page cache. */
-static int
-xfs_bounce_unaligned_dio_write(
-	struct xfs_inode	*ip,
-	xfs_fileoff_t		offset_fsb,
-	struct xfs_bmbt_irec	*imap)
-{
-	struct xfs_bmbt_irec	irec;
-	xfs_fileoff_t		delta;
-	bool			shared;
-	bool			x;
-	int			error;
-
-	irec = *imap;
-	if (offset_fsb > irec.br_startoff) {
-		delta = offset_fsb - irec.br_startoff;
-		irec.br_blockcount -= delta;
-		irec.br_startblock += delta;
-		irec.br_startoff = offset_fsb;
-	}
-	error = xfs_reflink_trim_around_shared(ip, &irec, &shared, &x);
-	if (error)
-		return error;
-
-	/*
-	 * We're here because we're trying to do a directio write to a
-	 * region that isn't aligned to a filesystem block.  If any part
-	 * of the extent is shared, fall back to buffered mode to handle
-	 * the RMW.  This is done by returning -EREMCHG ("remote addr
-	 * changed"), which is caught further up the call stack.
-	 */
-	if (shared) {
-		trace_xfs_reflink_bounce_dio_write(ip, imap);
-		return -EREMCHG;
-	}
-	return 0;
-}
-
 STATIC int
 __xfs_get_blocks(
 	struct inode		*inode,
@@ -1320,7 +1310,7 @@ __xfs_get_blocks(
 		return -EIO;
 
 	offset = (xfs_off_t)iblock << inode->i_blkbits;
-	ASSERT(bh_result->b_size >= (1 << inode->i_blkbits));
+	ASSERT(bh_result->b_size >= i_blocksize(inode));
 	size = bh_result->b_size;
 
 	if (!create && offset >= i_size_read(inode))
@@ -1361,6 +1351,26 @@ __xfs_get_blocks(
 	if (error)
 		goto out_unlock;
 
+	/*
+	 * The only time we can ever safely find delalloc blocks on direct I/O
+	 * is a dio write to post-eof speculative preallocation. All other
+	 * scenarios are indicative of a problem or misuse (such as mixing
+	 * direct and mapped I/O).
+	 *
+	 * The file may be unmapped by the time we get here so we cannot
+	 * reliably fail the I/O based on mapping. Instead, fail the I/O if this
+	 * is a read or a write within eof. Otherwise, carry on but warn as a
+	 * precuation if the file happens to be mapped.
+	 */
+	if (direct && imap.br_startblock == DELAYSTARTBLOCK) {
+		if (!create || offset < i_size_read(VFS_I(ip))) {
+			WARN_ON_ONCE(1);
+			error = -EIO;
+			goto out_unlock;
+		}
+		WARN_ON_ONCE(mapping_mapped(VFS_I(ip)->i_mapping));
+	}
+
 	/* for DAX, we convert unwritten extents directly */
 	if (create &&
 	    (!nimaps ||
@@ -1409,13 +1419,6 @@ __xfs_get_blocks(
 	if (imap.br_startblock != HOLESTARTBLOCK &&
 	    imap.br_startblock != DELAYSTARTBLOCK &&
 	    (create || !ISUNWRITTEN(&imap))) {
-		if (create && direct && !is_cow) {
-			error = xfs_bounce_unaligned_dio_write(ip, offset_fsb,
-					&imap);
-			if (error)
-				return error;
-		}
-
 		xfs_map_buffer(inode, bh_result, &imap, offset);
 		if (ISUNWRITTEN(&imap))
 			set_buffer_unwritten(bh_result);
@@ -1450,8 +1453,6 @@ __xfs_get_blocks(
 	     (new || ISUNWRITTEN(&imap))))
 		set_buffer_new(bh_result);
 
-	BUG_ON(direct && imap.br_startblock == DELAYSTARTBLOCK);
-
 	return 0;
 
 out_unlock:
@@ -1589,9 +1590,12 @@ xfs_vm_bmap(
 	 * The swap code (ab-)uses ->bmap to get a block mapping and then
 	 * bypasseѕ the file system for actual I/O.  We really can't allow
 	 * that on reflinks inodes, so we have to skip out here.  And yes,
-	 * 0 is the magic code for a bmap error..
+	 * 0 is the magic code for a bmap error.
+	 *
+	 * Since we don't pass back blockdev info, we can't return bmap
+	 * information for rt files either.
 	 */
-	if (xfs_is_reflink_inode(ip)) {
+	if (xfs_is_reflink_inode(ip) || XFS_IS_REALTIME_INODE(ip)) {
 		xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 		return 0;
 	}
@@ -1657,7 +1661,7 @@ xfs_vm_set_page_dirty(
 			if (offset < end_offset)
 				set_buffer_dirty(bh);
 			bh = bh->b_this_page;
-			offset += 1 << inode->i_blkbits;
+			offset += i_blocksize(inode);
 		} while (bh != head);
 	}
 	/*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_bmap_item.c linux-libre-4.9.52-gnu/fs/xfs/xfs_bmap_item.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_bmap_item.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_bmap_item.c	2017-09-27 08:40:05.000000000 -0400
@@ -34,6 +34,8 @@
 #include "xfs_bmap.h"
 #include "xfs_icache.h"
 #include "xfs_trace.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_trans_space.h"
 
 
 kmem_zone_t	*xfs_bui_zone;
@@ -393,6 +395,7 @@ xfs_bui_recover(
 	struct xfs_map_extent		*bmap;
 	xfs_fsblock_t			startblock_fsb;
 	xfs_fsblock_t			inode_fsb;
+	xfs_filblks_t			count;
 	bool				op_ok;
 	struct xfs_bud_log_item		*budp;
 	enum xfs_bmap_intent_type	type;
@@ -401,6 +404,7 @@ xfs_bui_recover(
 	struct xfs_trans		*tp;
 	struct xfs_inode		*ip = NULL;
 	struct xfs_defer_ops		dfops;
+	struct xfs_bmbt_irec		irec;
 	xfs_fsblock_t			firstfsb;
 
 	ASSERT(!test_bit(XFS_BUI_RECOVERED, &buip->bui_flags));
@@ -446,7 +450,8 @@ xfs_bui_recover(
 		return -EIO;
 	}
 
-	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
+	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate,
+			XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK), 0, 0, &tp);
 	if (error)
 		return error;
 	budp = xfs_trans_get_bud(tp, buip);
@@ -477,13 +482,24 @@ xfs_bui_recover(
 	}
 	xfs_trans_ijoin(tp, ip, 0);
 
+	count = bmap->me_len;
 	error = xfs_trans_log_finish_bmap_update(tp, budp, &dfops, type,
 			ip, whichfork, bmap->me_startoff,
-			bmap->me_startblock, bmap->me_len,
-			state);
+			bmap->me_startblock, &count, state);
 	if (error)
 		goto err_dfops;
 
+	if (count > 0) {
+		ASSERT(type == XFS_BMAP_UNMAP);
+		irec.br_startblock = bmap->me_startblock;
+		irec.br_blockcount = count;
+		irec.br_startoff = bmap->me_startoff;
+		irec.br_state = state;
+		error = xfs_bmap_unmap_extent(tp->t_mountp, &dfops, ip, &irec);
+		if (error)
+			goto err_dfops;
+	}
+
 	/* Finish transaction, free inodes. */
 	error = xfs_defer_finish(&tp, &dfops, NULL);
 	if (error)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_bmap_util.c linux-libre-4.9.52-gnu/fs/xfs/xfs_bmap_util.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_bmap_util.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_bmap_util.c	2017-09-27 08:40:05.000000000 -0400
@@ -359,9 +359,7 @@ xfs_bmap_count_blocks(
 	mp = ip->i_mount;
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	if ( XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ) {
-		xfs_bmap_count_leaves(ifp, 0,
-			ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t),
-			count);
+		xfs_bmap_count_leaves(ifp, 0, xfs_iext_count(ifp), count);
 		return 0;
 	}
 
@@ -426,7 +424,7 @@ xfs_getbmapx_fix_eof_hole(
 		ifp = XFS_IFORK_PTR(ip, whichfork);
 		if (!moretocome &&
 		    xfs_iext_bno_to_ext(ifp, fileblock, &lastx) &&
-		   (lastx == (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t))-1))
+		   (lastx == xfs_iext_count(ifp) - 1))
 			out->bmv_oflags |= BMV_OF_LAST;
 	}
 
@@ -530,7 +528,6 @@ xfs_getbmap(
 	xfs_bmbt_irec_t		*map;		/* buffer for user's data */
 	xfs_mount_t		*mp;		/* file system mount point */
 	int			nex;		/* # of user extents can do */
-	int			nexleft;	/* # of user extents left */
 	int			subnex;		/* # of bmapi's can do */
 	int			nmap;		/* number of map entries */
 	struct getbmapx		*out;		/* output structure */
@@ -591,9 +588,13 @@ xfs_getbmap(
 		}
 		break;
 	default:
+		/* Local format data forks report no extents. */
+		if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
+			bmv->bmv_entries = 0;
+			return 0;
+		}
 		if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
-		    ip->i_d.di_format != XFS_DINODE_FMT_BTREE &&
-		    ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
+		    ip->i_d.di_format != XFS_DINODE_FMT_BTREE)
 			return -EINVAL;
 
 		if (xfs_get_extsz_hint(ip) ||
@@ -688,10 +689,8 @@ xfs_getbmap(
 		goto out_free_map;
 	}
 
-	nexleft = nex;
-
 	do {
-		nmap = (nexleft > subnex) ? subnex : nexleft;
+		nmap = (nex> subnex) ? subnex : nex;
 		error = xfs_bmapi_read(ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
 				       XFS_BB_TO_FSB(mp, bmv->bmv_length),
 				       map, &nmap, bmapi_flags);
@@ -699,8 +698,8 @@ xfs_getbmap(
 			goto out_free_map;
 		ASSERT(nmap <= subnex);
 
-		for (i = 0; i < nmap && nexleft && bmv->bmv_length &&
-				cur_ext < bmv->bmv_count; i++) {
+		for (i = 0; i < nmap && bmv->bmv_length &&
+				cur_ext < bmv->bmv_count - 1; i++) {
 			out[cur_ext].bmv_oflags = 0;
 			if (map[i].br_state == XFS_EXT_UNWRITTEN)
 				out[cur_ext].bmv_oflags |= BMV_OF_PREALLOC;
@@ -723,7 +722,7 @@ xfs_getbmap(
 			 * extents.
 			 */
 			if (map[i].br_startblock == DELAYSTARTBLOCK &&
-			    map[i].br_startoff <= XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
+			    map[i].br_startoff < XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
 				ASSERT((iflags & BMV_IF_DELALLOC) != 0);
 
                         if (map[i].br_startblock == HOLESTARTBLOCK &&
@@ -762,16 +761,27 @@ xfs_getbmap(
 				continue;
 			}
 
+			/*
+			 * In order to report shared extents accurately,
+			 * we report each distinct shared/unshared part
+			 * of a single bmbt record using multiple bmap
+			 * extents.  To make that happen, we iterate the
+			 * same map array item multiple times, each
+			 * time trimming out the subextent that we just
+			 * reported.
+			 *
+			 * Because of this, we must check the out array
+			 * index (cur_ext) directly against bmv_count-1
+			 * to avoid overflows.
+			 */
 			if (inject_map.br_startblock != NULLFSBLOCK) {
 				map[i] = inject_map;
 				i--;
-			} else
-				nexleft--;
+			}
 			bmv->bmv_entries++;
 			cur_ext++;
 		}
-	} while (nmap && nexleft && bmv->bmv_length &&
-		 cur_ext < bmv->bmv_count);
+	} while (nmap && bmv->bmv_length && cur_ext < bmv->bmv_count - 1);
 
  out_free_map:
 	kmem_free(map);
@@ -905,23 +915,22 @@ xfs_can_free_eofblocks(struct xfs_inode
 }
 
 /*
- * This is called by xfs_inactive to free any blocks beyond eof
- * when the link count isn't zero and by xfs_dm_punch_hole() when
- * punching a hole to EOF.
+ * This is called to free any blocks beyond eof. The caller must hold
+ * IOLOCK_EXCL unless we are in the inode reclaim path and have the only
+ * reference to the inode.
  */
 int
 xfs_free_eofblocks(
-	xfs_mount_t	*mp,
-	xfs_inode_t	*ip,
-	bool		need_iolock)
+	struct xfs_inode	*ip)
 {
-	xfs_trans_t	*tp;
-	int		error;
-	xfs_fileoff_t	end_fsb;
-	xfs_fileoff_t	last_fsb;
-	xfs_filblks_t	map_len;
-	int		nimaps;
-	xfs_bmbt_irec_t	imap;
+	struct xfs_trans	*tp;
+	int			error;
+	xfs_fileoff_t		end_fsb;
+	xfs_fileoff_t		last_fsb;
+	xfs_filblks_t		map_len;
+	int			nimaps;
+	struct xfs_bmbt_irec	imap;
+	struct xfs_mount	*mp = ip->i_mount;
 
 	/*
 	 * Figure out if there are any blocks beyond the end
@@ -938,6 +947,10 @@ xfs_free_eofblocks(
 	error = xfs_bmapi_read(ip, end_fsb, map_len, &imap, &nimaps, 0);
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 
+	/*
+	 * If there are blocks after the end of file, truncate the file to its
+	 * current size to free them up.
+	 */
 	if (!error && (nimaps != 0) &&
 	    (imap.br_startblock != HOLESTARTBLOCK ||
 	     ip->i_delayed_blks)) {
@@ -948,22 +961,13 @@ xfs_free_eofblocks(
 		if (error)
 			return error;
 
-		/*
-		 * There are blocks after the end of file.
-		 * Free them up now by truncating the file to
-		 * its current size.
-		 */
-		if (need_iolock) {
-			if (!xfs_ilock_nowait(ip, XFS_IOLOCK_EXCL))
-				return -EAGAIN;
-		}
+		/* wait on dio to ensure i_size has settled */
+		inode_dio_wait(VFS_I(ip));
 
 		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0,
 				&tp);
 		if (error) {
 			ASSERT(XFS_FORCED_SHUTDOWN(mp));
-			if (need_iolock)
-				xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 			return error;
 		}
 
@@ -991,8 +995,6 @@ xfs_free_eofblocks(
 		}
 
 		xfs_iunlock(ip, XFS_ILOCK_EXCL);
-		if (need_iolock)
-			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 	}
 	return error;
 }
@@ -1318,8 +1320,16 @@ xfs_free_file_space(
 	/*
 	 * Now that we've unmap all full blocks we'll have to zero out any
 	 * partial block at the beginning and/or end.  xfs_zero_range is
-	 * smart enough to skip any holes, including those we just created.
+	 * smart enough to skip any holes, including those we just created,
+	 * but we must take care not to zero beyond EOF and enlarge i_size.
 	 */
+
+	if (offset >= XFS_ISIZE(ip))
+		return 0;
+
+	if (offset + len > XFS_ISIZE(ip))
+		len = XFS_ISIZE(ip) - offset;
+
 	return xfs_zero_range(ip, offset, len, NULL);
 }
 
@@ -1387,10 +1397,16 @@ xfs_shift_file_space(
 	xfs_fileoff_t		stop_fsb;
 	xfs_fileoff_t		next_fsb;
 	xfs_fileoff_t		shift_fsb;
+	uint			resblks;
 
 	ASSERT(direction == SHIFT_LEFT || direction == SHIFT_RIGHT);
 
 	if (direction == SHIFT_LEFT) {
+		/*
+		 * Reserve blocks to cover potential extent merges after left
+		 * shift operations.
+		 */
+		resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
 		next_fsb = XFS_B_TO_FSB(mp, offset + len);
 		stop_fsb = XFS_B_TO_FSB(mp, VFS_I(ip)->i_size);
 	} else {
@@ -1398,6 +1414,7 @@ xfs_shift_file_space(
 		 * If right shift, delegate the work of initialization of
 		 * next_fsb to xfs_bmap_shift_extent as it has ilock held.
 		 */
+		resblks = 0;
 		next_fsb = NULLFSBLOCK;
 		stop_fsb = XFS_B_TO_FSB(mp, offset);
 	}
@@ -1409,7 +1426,7 @@ xfs_shift_file_space(
 	 * into the accessible region of the file.
 	 */
 	if (xfs_can_free_eofblocks(ip, true)) {
-		error = xfs_free_eofblocks(mp, ip, false);
+		error = xfs_free_eofblocks(ip);
 		if (error)
 			return error;
 	}
@@ -1439,21 +1456,14 @@ xfs_shift_file_space(
 	}
 
 	while (!error && !done) {
-		/*
-		 * We would need to reserve permanent block for transaction.
-		 * This will come into picture when after shifting extent into
-		 * hole we found that adjacent extents can be merged which
-		 * may lead to freeing of a block during record update.
-		 */
-		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write,
-				XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, 0, &tp);
+		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, resblks, 0, 0,
+					&tp);
 		if (error)
 			break;
 
 		xfs_ilock(ip, XFS_ILOCK_EXCL);
 		error = xfs_trans_reserve_quota(tp, mp, ip->i_udquot,
-				ip->i_gdquot, ip->i_pdquot,
-				XFS_DIOSTRAT_SPACE_RES(mp, 0), 0,
+				ip->i_gdquot, ip->i_pdquot, resblks, 0,
 				XFS_QMOPT_RES_REGBLKS);
 		if (error)
 			goto out_trans_cancel;
@@ -1792,6 +1802,7 @@ xfs_swap_extent_forks(
 	struct xfs_ifork	tempifp, *ifp, *tifp;
 	int			aforkblks = 0;
 	int			taforkblks = 0;
+	xfs_extnum_t		nextents;
 	__uint64_t		tmp;
 	int			error;
 
@@ -1814,29 +1825,18 @@ xfs_swap_extent_forks(
 	}
 
 	/*
-	 * Before we've swapped the forks, lets set the owners of the forks
-	 * appropriately. We have to do this as we are demand paging the btree
-	 * buffers, and so the validation done on read will expect the owner
-	 * field to be correctly set. Once we change the owners, we can swap the
-	 * inode forks.
+	 * Btree format (v3) inodes have the inode number stamped in the bmbt
+	 * block headers. We can't start changing the bmbt blocks until the
+	 * inode owner change is logged so recovery does the right thing in the
+	 * event of a crash. Set the owner change log flags now and leave the
+	 * bmbt scan as the last step.
 	 */
 	if (ip->i_d.di_version == 3 &&
-	    ip->i_d.di_format == XFS_DINODE_FMT_BTREE) {
+	    ip->i_d.di_format == XFS_DINODE_FMT_BTREE)
 		(*target_log_flags) |= XFS_ILOG_DOWNER;
-		error = xfs_bmbt_change_owner(tp, ip, XFS_DATA_FORK,
-					      tip->i_ino, NULL);
-		if (error)
-			return error;
-	}
-
 	if (tip->i_d.di_version == 3 &&
-	    tip->i_d.di_format == XFS_DINODE_FMT_BTREE) {
+	    tip->i_d.di_format == XFS_DINODE_FMT_BTREE)
 		(*src_log_flags) |= XFS_ILOG_DOWNER;
-		error = xfs_bmbt_change_owner(tp, tip, XFS_DATA_FORK,
-					      ip->i_ino, NULL);
-		if (error)
-			return error;
-	}
 
 	/*
 	 * Swap the data forks of the inodes
@@ -1877,14 +1877,13 @@ xfs_swap_extent_forks(
 
 	switch (ip->i_d.di_format) {
 	case XFS_DINODE_FMT_EXTENTS:
-		/* If the extents fit in the inode, fix the
-		 * pointer.  Otherwise it's already NULL or
-		 * pointing to the extent.
+		/*
+		 * If the extents fit in the inode, fix the pointer.  Otherwise
+		 * it's already NULL or pointing to the extent.
 		 */
-		if (ip->i_d.di_nextents <= XFS_INLINE_EXTS) {
-			ifp->if_u1.if_extents =
-				ifp->if_u2.if_inline_ext;
-		}
+		nextents = xfs_iext_count(&ip->i_df);
+		if (nextents <= XFS_INLINE_EXTS)
+			ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
 		(*src_log_flags) |= XFS_ILOG_DEXT;
 		break;
 	case XFS_DINODE_FMT_BTREE:
@@ -1896,14 +1895,13 @@ xfs_swap_extent_forks(
 
 	switch (tip->i_d.di_format) {
 	case XFS_DINODE_FMT_EXTENTS:
-		/* If the extents fit in the inode, fix the
-		 * pointer.  Otherwise it's already NULL or
-		 * pointing to the extent.
+		/*
+		 * If the extents fit in the inode, fix the pointer.  Otherwise
+		 * it's already NULL or pointing to the extent.
 		 */
-		if (tip->i_d.di_nextents <= XFS_INLINE_EXTS) {
-			tifp->if_u1.if_extents =
-				tifp->if_u2.if_inline_ext;
-		}
+		nextents = xfs_iext_count(&tip->i_df);
+		if (nextents <= XFS_INLINE_EXTS)
+			tifp->if_u1.if_extents = tifp->if_u2.if_inline_ext;
 		(*target_log_flags) |= XFS_ILOG_DEXT;
 		break;
 	case XFS_DINODE_FMT_BTREE:
@@ -1916,6 +1914,48 @@ xfs_swap_extent_forks(
 	return 0;
 }
 
+/*
+ * Fix up the owners of the bmbt blocks to refer to the current inode. The
+ * change owner scan attempts to order all modified buffers in the current
+ * transaction. In the event of ordered buffer failure, the offending buffer is
+ * physically logged as a fallback and the scan returns -EAGAIN. We must roll
+ * the transaction in this case to replenish the fallback log reservation and
+ * restart the scan. This process repeats until the scan completes.
+ */
+static int
+xfs_swap_change_owner(
+	struct xfs_trans	**tpp,
+	struct xfs_inode	*ip,
+	struct xfs_inode	*tmpip)
+{
+	int			error;
+	struct xfs_trans	*tp = *tpp;
+
+	do {
+		error = xfs_bmbt_change_owner(tp, ip, XFS_DATA_FORK, ip->i_ino,
+					      NULL);
+		/* success or fatal error */
+		if (error != -EAGAIN)
+			break;
+
+		error = xfs_trans_roll(tpp, NULL);
+		if (error)
+			break;
+		tp = *tpp;
+
+		/*
+		 * Redirty both inodes so they can relog and keep the log tail
+		 * moving forward.
+		 */
+		xfs_trans_ijoin(tp, ip, 0);
+		xfs_trans_ijoin(tp, tmpip, 0);
+		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+		xfs_trans_log_inode(tp, tmpip, XFS_ILOG_CORE);
+	} while (true);
+
+	return error;
+}
+
 int
 xfs_swap_extents(
 	struct xfs_inode	*ip,	/* target inode */
@@ -1929,8 +1969,8 @@ xfs_swap_extents(
 	int			error = 0;
 	int			lock_flags;
 	struct xfs_ifork	*cowfp;
-	__uint64_t		f;
-	int			resblks;
+	uint64_t		f;
+	int			resblks = 0;
 
 	/*
 	 * Lock the inodes against other IO, page faults and truncate to
@@ -1978,11 +2018,8 @@ xfs_swap_extents(
 			  XFS_SWAP_RMAP_SPACE_RES(mp,
 				XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK),
 				XFS_DATA_FORK);
-		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, resblks,
-				0, 0, &tp);
-	} else
-		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 0,
-				0, 0, &tp);
+	}
+	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, resblks, 0, 0, &tp);
 	if (error)
 		goto out_unlock;
 
@@ -2068,6 +2105,23 @@ xfs_swap_extents(
 	xfs_trans_log_inode(tp, tip, target_log_flags);
 
 	/*
+	 * The extent forks have been swapped, but crc=1,rmapbt=0 filesystems
+	 * have inode number owner values in the bmbt blocks that still refer to
+	 * the old inode. Scan each bmbt to fix up the owner values with the
+	 * inode number of the current inode.
+	 */
+	if (src_log_flags & XFS_ILOG_DOWNER) {
+		error = xfs_swap_change_owner(&tp, ip, tip);
+		if (error)
+			goto out_trans_cancel;
+	}
+	if (target_log_flags & XFS_ILOG_DOWNER) {
+		error = xfs_swap_change_owner(&tp, tip, ip);
+		if (error)
+			goto out_trans_cancel;
+	}
+
+	/*
 	 * If this is a synchronous mount, make sure that the
 	 * transaction goes to disk before returning to the user.
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_bmap_util.h linux-libre-4.9.52-gnu/fs/xfs/xfs_bmap_util.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_bmap_util.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_bmap_util.h	2017-09-27 08:40:05.000000000 -0400
@@ -63,8 +63,7 @@ int	xfs_insert_file_space(struct xfs_ino
 
 /* EOF block manipulation functions */
 bool	xfs_can_free_eofblocks(struct xfs_inode *ip, bool force);
-int	xfs_free_eofblocks(struct xfs_mount *mp, struct xfs_inode *ip,
-			   bool need_iolock);
+int	xfs_free_eofblocks(struct xfs_inode *ip);
 
 int	xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
 			 struct xfs_swapext *sx);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_buf.c linux-libre-4.9.52-gnu/fs/xfs/xfs_buf.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_buf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_buf.c	2017-09-27 08:40:05.000000000 -0400
@@ -96,12 +96,16 @@ static inline void
 xfs_buf_ioacct_inc(
 	struct xfs_buf	*bp)
 {
-	if (bp->b_flags & (XBF_NO_IOACCT|_XBF_IN_FLIGHT))
+	if (bp->b_flags & XBF_NO_IOACCT)
 		return;
 
 	ASSERT(bp->b_flags & XBF_ASYNC);
-	bp->b_flags |= _XBF_IN_FLIGHT;
-	percpu_counter_inc(&bp->b_target->bt_io_count);
+	spin_lock(&bp->b_lock);
+	if (!(bp->b_state & XFS_BSTATE_IN_FLIGHT)) {
+		bp->b_state |= XFS_BSTATE_IN_FLIGHT;
+		percpu_counter_inc(&bp->b_target->bt_io_count);
+	}
+	spin_unlock(&bp->b_lock);
 }
 
 /*
@@ -109,14 +113,24 @@ xfs_buf_ioacct_inc(
  * freed and unaccount from the buftarg.
  */
 static inline void
-xfs_buf_ioacct_dec(
+__xfs_buf_ioacct_dec(
 	struct xfs_buf	*bp)
 {
-	if (!(bp->b_flags & _XBF_IN_FLIGHT))
-		return;
+	lockdep_assert_held(&bp->b_lock);
 
-	bp->b_flags &= ~_XBF_IN_FLIGHT;
-	percpu_counter_dec(&bp->b_target->bt_io_count);
+	if (bp->b_state & XFS_BSTATE_IN_FLIGHT) {
+		bp->b_state &= ~XFS_BSTATE_IN_FLIGHT;
+		percpu_counter_dec(&bp->b_target->bt_io_count);
+	}
+}
+
+static inline void
+xfs_buf_ioacct_dec(
+	struct xfs_buf	*bp)
+{
+	spin_lock(&bp->b_lock);
+	__xfs_buf_ioacct_dec(bp);
+	spin_unlock(&bp->b_lock);
 }
 
 /*
@@ -148,9 +162,9 @@ xfs_buf_stale(
 	 * unaccounted (released to LRU) before that occurs. Drop in-flight
 	 * status now to preserve accounting consistency.
 	 */
-	xfs_buf_ioacct_dec(bp);
-
 	spin_lock(&bp->b_lock);
+	__xfs_buf_ioacct_dec(bp);
+
 	atomic_set(&bp->b_lru_ref, 0);
 	if (!(bp->b_state & XFS_BSTATE_DISPOSE) &&
 	    (list_lru_del(&bp->b_target->bt_lru, &bp->b_lru)))
@@ -423,6 +437,7 @@ retry:
 out_free_pages:
 	for (i = 0; i < bp->b_page_count; i++)
 		__free_page(bp->b_pages[i]);
+	bp->b_flags &= ~_XBF_PAGES;
 	return error;
 }
 
@@ -952,12 +967,12 @@ xfs_buf_rele(
 		 * ensures the decrement occurs only once per-buf.
 		 */
 		if ((atomic_read(&bp->b_hold) == 1) && !list_empty(&bp->b_lru))
-			xfs_buf_ioacct_dec(bp);
+			__xfs_buf_ioacct_dec(bp);
 		goto out_unlock;
 	}
 
 	/* the last reference has been dropped ... */
-	xfs_buf_ioacct_dec(bp);
+	__xfs_buf_ioacct_dec(bp);
 	if (!(bp->b_flags & XBF_STALE) && atomic_read(&bp->b_lru_ref)) {
 		/*
 		 * If the buffer is added to the LRU take a new reference to the
@@ -1051,6 +1066,8 @@ void
 xfs_buf_unlock(
 	struct xfs_buf		*bp)
 {
+	ASSERT(xfs_buf_islocked(bp));
+
 	XB_CLEAR_OWNER(bp);
 	up(&bp->b_sema);
 
@@ -1789,6 +1806,28 @@ error:
 }
 
 /*
+ * Cancel a delayed write list.
+ *
+ * Remove each buffer from the list, clear the delwri queue flag and drop the
+ * associated buffer reference.
+ */
+void
+xfs_buf_delwri_cancel(
+	struct list_head	*list)
+{
+	struct xfs_buf		*bp;
+
+	while (!list_empty(list)) {
+		bp = list_first_entry(list, struct xfs_buf, b_list);
+
+		xfs_buf_lock(bp);
+		bp->b_flags &= ~_XBF_DELWRI_Q;
+		list_del_init(&bp->b_list);
+		xfs_buf_relse(bp);
+	}
+}
+
+/*
  * Add a buffer to the delayed write list.
  *
  * This queues a buffer for writeout if it hasn't already been.  Note that
@@ -1982,6 +2021,66 @@ xfs_buf_delwri_submit(
 
 	return error;
 }
+
+/*
+ * Push a single buffer on a delwri queue.
+ *
+ * The purpose of this function is to submit a single buffer of a delwri queue
+ * and return with the buffer still on the original queue. The waiting delwri
+ * buffer submission infrastructure guarantees transfer of the delwri queue
+ * buffer reference to a temporary wait list. We reuse this infrastructure to
+ * transfer the buffer back to the original queue.
+ *
+ * Note the buffer transitions from the queued state, to the submitted and wait
+ * listed state and back to the queued state during this call. The buffer
+ * locking and queue management logic between _delwri_pushbuf() and
+ * _delwri_queue() guarantee that the buffer cannot be queued to another list
+ * before returning.
+ */
+int
+xfs_buf_delwri_pushbuf(
+	struct xfs_buf		*bp,
+	struct list_head	*buffer_list)
+{
+	LIST_HEAD		(submit_list);
+	int			error;
+
+	ASSERT(bp->b_flags & _XBF_DELWRI_Q);
+
+	trace_xfs_buf_delwri_pushbuf(bp, _RET_IP_);
+
+	/*
+	 * Isolate the buffer to a new local list so we can submit it for I/O
+	 * independently from the rest of the original list.
+	 */
+	xfs_buf_lock(bp);
+	list_move(&bp->b_list, &submit_list);
+	xfs_buf_unlock(bp);
+
+	/*
+	 * Delwri submission clears the DELWRI_Q buffer flag and returns with
+	 * the buffer on the wait list with an associated reference. Rather than
+	 * bounce the buffer from a local wait list back to the original list
+	 * after I/O completion, reuse the original list as the wait list.
+	 */
+	xfs_buf_delwri_submit_buffers(&submit_list, buffer_list);
+
+	/*
+	 * The buffer is now under I/O and wait listed as during typical delwri
+	 * submission. Lock the buffer to wait for I/O completion. Rather than
+	 * remove the buffer from the wait list and release the reference, we
+	 * want to return with the buffer queued to the original list. The
+	 * buffer already sits on the original list with a wait list reference,
+	 * however. If we let the queue inherit that wait list reference, all we
+	 * need to do is reset the DELWRI_Q flag.
+	 */
+	xfs_buf_lock(bp);
+	error = bp->b_error;
+	bp->b_flags |= _XBF_DELWRI_Q;
+	xfs_buf_unlock(bp);
+
+	return error;
+}
 
 int __init
 xfs_buf_init(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_buf.h linux-libre-4.9.52-gnu/fs/xfs/xfs_buf.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_buf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_buf.h	2017-09-27 08:40:05.000000000 -0400
@@ -63,7 +63,6 @@ typedef enum {
 #define _XBF_KMEM	 (1 << 21)/* backed by heap memory */
 #define _XBF_DELWRI_Q	 (1 << 22)/* buffer on a delwri queue */
 #define _XBF_COMPOUND	 (1 << 23)/* compound buffer */
-#define _XBF_IN_FLIGHT	 (1 << 25) /* I/O in flight, for accounting purposes */
 
 typedef unsigned int xfs_buf_flags_t;
 
@@ -83,14 +82,14 @@ typedef unsigned int xfs_buf_flags_t;
 	{ _XBF_PAGES,		"PAGES" }, \
 	{ _XBF_KMEM,		"KMEM" }, \
 	{ _XBF_DELWRI_Q,	"DELWRI_Q" }, \
-	{ _XBF_COMPOUND,	"COMPOUND" }, \
-	{ _XBF_IN_FLIGHT,	"IN_FLIGHT" }
+	{ _XBF_COMPOUND,	"COMPOUND" }
 
 
 /*
  * Internal state flags.
  */
 #define XFS_BSTATE_DISPOSE	 (1 << 0)	/* buffer being discarded */
+#define XFS_BSTATE_IN_FLIGHT	 (1 << 1)	/* I/O in flight */
 
 /*
  * The xfs_buftarg contains 2 notions of "sector size" -
@@ -330,9 +329,11 @@ extern void *xfs_buf_offset(struct xfs_b
 extern void xfs_buf_stale(struct xfs_buf *bp);
 
 /* Delayed Write Buffer Routines */
+extern void xfs_buf_delwri_cancel(struct list_head *);
 extern bool xfs_buf_delwri_queue(struct xfs_buf *, struct list_head *);
 extern int xfs_buf_delwri_submit(struct list_head *);
 extern int xfs_buf_delwri_submit_nowait(struct list_head *);
+extern int xfs_buf_delwri_pushbuf(struct xfs_buf *, struct list_head *);
 
 /* Buffer Daemon Setup Routines */
 extern int xfs_buf_init(void);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_buf_item.c linux-libre-4.9.52-gnu/fs/xfs/xfs_buf_item.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_buf_item.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_buf_item.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,6 +29,7 @@
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_log.h"
+#include "xfs_inode.h"
 
 
 kmem_zone_t	*xfs_buf_item_zone;
@@ -322,6 +323,8 @@ xfs_buf_item_format(
 	ASSERT((bip->bli_flags & XFS_BLI_STALE) ||
 	       (xfs_blft_from_flags(&bip->__bli_format) > XFS_BLFT_UNKNOWN_BUF
 	        && xfs_blft_from_flags(&bip->__bli_format) < XFS_BLFT_MAX_BUF));
+	ASSERT(!(bip->bli_flags & XFS_BLI_ORDERED) ||
+	       (bip->bli_flags & XFS_BLI_STALE));
 
 
 	/*
@@ -346,16 +349,6 @@ xfs_buf_item_format(
 		bip->bli_flags &= ~XFS_BLI_INODE_BUF;
 	}
 
-	if ((bip->bli_flags & (XFS_BLI_ORDERED|XFS_BLI_STALE)) ==
-							XFS_BLI_ORDERED) {
-		/*
-		 * The buffer has been logged just to order it.  It is not being
-		 * included in the transaction commit, so don't format it.
-		 */
-		trace_xfs_buf_item_format_ordered(bip);
-		return;
-	}
-
 	for (i = 0; i < bip->bli_format_count; i++) {
 		xfs_buf_item_format_segment(bip, lv, &vecp, offset,
 					    &bip->bli_formats[i]);
@@ -574,26 +567,20 @@ xfs_buf_item_unlock(
 {
 	struct xfs_buf_log_item	*bip = BUF_ITEM(lip);
 	struct xfs_buf		*bp = bip->bli_buf;
-	bool			clean;
-	bool			aborted;
-	int			flags;
+	bool			aborted = !!(lip->li_flags & XFS_LI_ABORTED);
+	bool			hold = !!(bip->bli_flags & XFS_BLI_HOLD);
+	bool			dirty = !!(bip->bli_flags & XFS_BLI_DIRTY);
+#if defined(DEBUG) || defined(XFS_WARN)
+	bool			ordered = !!(bip->bli_flags & XFS_BLI_ORDERED);
+#endif
 
 	/* Clear the buffer's association with this transaction. */
 	bp->b_transp = NULL;
 
 	/*
-	 * If this is a transaction abort, don't return early.  Instead, allow
-	 * the brelse to happen.  Normally it would be done for stale
-	 * (cancelled) buffers at unpin time, but we'll never go through the
-	 * pin/unpin cycle if we abort inside commit.
-	 */
-	aborted = (lip->li_flags & XFS_LI_ABORTED) ? true : false;
-	/*
-	 * Before possibly freeing the buf item, copy the per-transaction state
-	 * so we can reference it safely later after clearing it from the
-	 * buffer log item.
+	 * The per-transaction state has been copied above so clear it from the
+	 * bli.
 	 */
-	flags = bip->bli_flags;
 	bip->bli_flags &= ~(XFS_BLI_LOGGED | XFS_BLI_HOLD | XFS_BLI_ORDERED);
 
 	/*
@@ -601,7 +588,7 @@ xfs_buf_item_unlock(
 	 * unlock the buffer and free the buf item when the buffer is unpinned
 	 * for the last time.
 	 */
-	if (flags & XFS_BLI_STALE) {
+	if (bip->bli_flags & XFS_BLI_STALE) {
 		trace_xfs_buf_item_unlock_stale(bip);
 		ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL);
 		if (!aborted) {
@@ -619,40 +606,34 @@ xfs_buf_item_unlock(
 	 * regardless of whether it is dirty or not. A dirty abort implies a
 	 * shutdown, anyway.
 	 *
-	 * Ordered buffers are dirty but may have no recorded changes, so ensure
-	 * we only release clean items here.
+	 * The bli dirty state should match whether the blf has logged segments
+	 * except for ordered buffers, where only the bli should be dirty.
 	 */
-	clean = (flags & XFS_BLI_DIRTY) ? false : true;
-	if (clean) {
-		int i;
-		for (i = 0; i < bip->bli_format_count; i++) {
-			if (!xfs_bitmap_empty(bip->bli_formats[i].blf_data_map,
-				     bip->bli_formats[i].blf_map_size)) {
-				clean = false;
-				break;
-			}
-		}
-	}
+	ASSERT((!ordered && dirty == xfs_buf_item_dirty_format(bip)) ||
+	       (ordered && dirty && !xfs_buf_item_dirty_format(bip)));
 
 	/*
 	 * Clean buffers, by definition, cannot be in the AIL. However, aborted
-	 * buffers may be dirty and hence in the AIL. Therefore if we are
-	 * aborting a buffer and we've just taken the last refernce away, we
-	 * have to check if it is in the AIL before freeing it. We need to free
-	 * it in this case, because an aborted transaction has already shut the
-	 * filesystem down and this is the last chance we will have to do so.
+	 * buffers may be in the AIL regardless of dirty state. An aborted
+	 * transaction that invalidates a buffer already in the AIL may have
+	 * marked it stale and cleared the dirty state, for example.
+	 *
+	 * Therefore if we are aborting a buffer and we've just taken the last
+	 * reference away, we have to check if it is in the AIL before freeing
+	 * it. We need to free it in this case, because an aborted transaction
+	 * has already shut the filesystem down and this is the last chance we
+	 * will have to do so.
 	 */
 	if (atomic_dec_and_test(&bip->bli_refcount)) {
-		if (clean)
-			xfs_buf_item_relse(bp);
-		else if (aborted) {
+		if (aborted) {
 			ASSERT(XFS_FORCED_SHUTDOWN(lip->li_mountp));
 			xfs_trans_ail_remove(lip, SHUTDOWN_LOG_IO_ERROR);
 			xfs_buf_item_relse(bp);
-		}
+		} else if (!dirty)
+			xfs_buf_item_relse(bp);
 	}
 
-	if (!(flags & XFS_BLI_HOLD))
+	if (!hold)
 		xfs_buf_relse(bp);
 }
 
@@ -942,14 +923,22 @@ xfs_buf_item_log(
 
 
 /*
- * Return 1 if the buffer has been logged or ordered in a transaction (at any
- * point, not just the current transaction) and 0 if not.
+ * Return true if the buffer has any ranges logged/dirtied by a transaction,
+ * false otherwise.
  */
-uint
-xfs_buf_item_dirty(
-	xfs_buf_log_item_t	*bip)
+bool
+xfs_buf_item_dirty_format(
+	struct xfs_buf_log_item	*bip)
 {
-	return (bip->bli_flags & XFS_BLI_DIRTY);
+	int			i;
+
+	for (i = 0; i < bip->bli_format_count; i++) {
+		if (!xfs_bitmap_empty(bip->bli_formats[i].blf_data_map,
+			     bip->bli_formats[i].blf_map_size))
+			return true;
+	}
+
+	return false;
 }
 
 STATIC void
@@ -1051,6 +1040,31 @@ xfs_buf_do_callbacks(
 	}
 }
 
+/*
+ * Invoke the error state callback for each log item affected by the failed I/O.
+ *
+ * If a metadata buffer write fails with a non-permanent error, the buffer is
+ * eventually resubmitted and so the completion callbacks are not run. The error
+ * state may need to be propagated to the log items attached to the buffer,
+ * however, so the next AIL push of the item knows hot to handle it correctly.
+ */
+STATIC void
+xfs_buf_do_callbacks_fail(
+	struct xfs_buf		*bp)
+{
+	struct xfs_log_item	*next;
+	struct xfs_log_item	*lip = bp->b_fspriv;
+	struct xfs_ail		*ailp = lip->li_ailp;
+
+	spin_lock(&ailp->xa_lock);
+	for (; lip; lip = next) {
+		next = lip->li_bio_list;
+		if (lip->li_ops->iop_error)
+			lip->li_ops->iop_error(lip, bp);
+	}
+	spin_unlock(&ailp->xa_lock);
+}
+
 static bool
 xfs_buf_iodone_callback_error(
 	struct xfs_buf		*bp)
@@ -1120,7 +1134,11 @@ xfs_buf_iodone_callback_error(
 	if ((mp->m_flags & XFS_MOUNT_UNMOUNTING) && mp->m_fail_unmount)
 		goto permanent_error;
 
-	/* still a transient error, higher layers will retry */
+	/*
+	 * Still a transient error, run IO completion failure callbacks and let
+	 * the higher layers retry the buffer.
+	 */
+	xfs_buf_do_callbacks_fail(bp);
 	xfs_buf_ioerror(bp, 0);
 	xfs_buf_relse(bp);
 	return true;
@@ -1162,6 +1180,7 @@ xfs_buf_iodone_callbacks(
 	 */
 	bp->b_last_error = 0;
 	bp->b_retries = 0;
+	bp->b_first_retry_time = 0;
 
 	xfs_buf_do_callbacks(bp);
 	bp->b_fspriv = NULL;
@@ -1200,3 +1219,31 @@ xfs_buf_iodone(
 	xfs_trans_ail_delete(ailp, lip, SHUTDOWN_CORRUPT_INCORE);
 	xfs_buf_item_free(BUF_ITEM(lip));
 }
+
+/*
+ * Requeue a failed buffer for writeback
+ *
+ * Return true if the buffer has been re-queued properly, false otherwise
+ */
+bool
+xfs_buf_resubmit_failed_buffers(
+	struct xfs_buf		*bp,
+	struct xfs_log_item	*lip,
+	struct list_head	*buffer_list)
+{
+	struct xfs_log_item	*next;
+
+	/*
+	 * Clear XFS_LI_FAILED flag from all items before resubmit
+	 *
+	 * XFS_LI_FAILED set/clear is protected by xa_lock, caller  this
+	 * function already have it acquired
+	 */
+	for (; lip; lip = next) {
+		next = lip->li_bio_list;
+		xfs_clear_li_failed(lip);
+	}
+
+	/* Add this buffer back to the delayed write list */
+	return xfs_buf_delwri_queue(bp, buffer_list);
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_buf_item.h linux-libre-4.9.52-gnu/fs/xfs/xfs_buf_item.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_buf_item.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_buf_item.h	2017-09-27 08:40:05.000000000 -0400
@@ -64,12 +64,15 @@ typedef struct xfs_buf_log_item {
 int	xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
 void	xfs_buf_item_relse(struct xfs_buf *);
 void	xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
-uint	xfs_buf_item_dirty(xfs_buf_log_item_t *);
+bool	xfs_buf_item_dirty_format(struct xfs_buf_log_item *);
 void	xfs_buf_attach_iodone(struct xfs_buf *,
 			      void(*)(struct xfs_buf *, xfs_log_item_t *),
 			      xfs_log_item_t *);
 void	xfs_buf_iodone_callbacks(struct xfs_buf *);
 void	xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
+bool	xfs_buf_resubmit_failed_buffers(struct xfs_buf *,
+					struct xfs_log_item *,
+					struct list_head *);
 
 extern kmem_zone_t	*xfs_buf_item_zone;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_dir2_readdir.c linux-libre-4.9.52-gnu/fs/xfs/xfs_dir2_readdir.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_dir2_readdir.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_dir2_readdir.c	2017-09-27 08:40:05.000000000 -0400
@@ -71,22 +71,11 @@ xfs_dir2_sf_getdents(
 	struct xfs_da_geometry	*geo = args->geo;
 
 	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
-	/*
-	 * Give up if the directory is way too short.
-	 */
-	if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
-		ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
-		return -EIO;
-	}
-
 	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
 	ASSERT(dp->i_df.if_u1.if_data != NULL);
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
 
-	if (dp->i_d.di_size < xfs_dir2_sf_hdr_size(sfp->i8count))
-		return -EFSCORRUPTED;
-
 	/*
 	 * If the block number in the offset is out of range, we're done.
 	 */
@@ -405,6 +394,7 @@ xfs_dir2_leaf_readbuf(
 
 	/*
 	 * Do we need more readahead?
+	 * Each loop tries to process 1 full dir blk; last may be partial.
 	 */
 	blk_start_plug(&plug);
 	for (mip->ra_index = mip->ra_offset = i = 0;
@@ -415,7 +405,8 @@ xfs_dir2_leaf_readbuf(
 		 * Read-ahead a contiguous directory block.
 		 */
 		if (i > mip->ra_current &&
-		    map[mip->ra_index].br_blockcount >= geo->fsbcount) {
+		    (map[mip->ra_index].br_blockcount - mip->ra_offset) >=
+		    geo->fsbcount) {
 			xfs_dir3_data_readahead(dp,
 				map[mip->ra_index].br_startoff + mip->ra_offset,
 				XFS_FSB_TO_DADDR(dp->i_mount,
@@ -436,14 +427,19 @@ xfs_dir2_leaf_readbuf(
 		}
 
 		/*
-		 * Advance offset through the mapping table.
+		 * Advance offset through the mapping table, processing a full
+		 * dir block even if it is fragmented into several extents.
+		 * But stop if we have consumed all valid mappings, even if
+		 * it's not yet a full directory block.
 		 */
-		for (j = 0; j < geo->fsbcount; j += length ) {
+		for (j = 0;
+		     j < geo->fsbcount && mip->ra_index < mip->map_valid;
+		     j += length ) {
 			/*
 			 * The rest of this extent but not more than a dir
 			 * block.
 			 */
-			length = min_t(int, geo->fsbcount,
+			length = min_t(int, geo->fsbcount - j,
 					map[mip->ra_index].br_blockcount -
 							mip->ra_offset);
 			mip->ra_offset += length;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_dquot.c linux-libre-4.9.52-gnu/fs/xfs/xfs_dquot.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_dquot.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_dquot.c	2017-09-27 08:40:05.000000000 -0400
@@ -710,6 +710,10 @@ xfs_dq_get_next_id(
 	/* Simple advance */
 	next_id = *id + 1;
 
+	/* If we'd wrap past the max ID, stop */
+	if (next_id < *id)
+		return -ENOENT;
+
 	/* If new ID is within the current chunk, advancing it sufficed */
 	if (next_id % mp->m_quotainfo->qi_dqperchunk) {
 		*id = next_id;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_extent_busy.c linux-libre-4.9.52-gnu/fs/xfs/xfs_extent_busy.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_extent_busy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_extent_busy.c	2017-09-27 08:40:05.000000000 -0400
@@ -45,18 +45,7 @@ xfs_extent_busy_insert(
 	struct rb_node		**rbp;
 	struct rb_node		*parent = NULL;
 
-	new = kmem_zalloc(sizeof(struct xfs_extent_busy), KM_MAYFAIL);
-	if (!new) {
-		/*
-		 * No Memory!  Since it is now not possible to track the free
-		 * block, make this a synchronous transaction to insure that
-		 * the block is not reused before this transaction commits.
-		 */
-		trace_xfs_extent_busy_enomem(tp->t_mountp, agno, bno, len);
-		xfs_trans_set_sync(tp);
-		return;
-	}
-
+	new = kmem_zalloc(sizeof(struct xfs_extent_busy), KM_SLEEP);
 	new->agno = agno;
 	new->bno = bno;
 	new->length = len;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_file.c linux-libre-4.9.52-gnu/fs/xfs/xfs_file.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_file.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_file.c	2017-09-27 08:40:05.000000000 -0400
@@ -554,6 +554,15 @@ xfs_file_dio_aio_write(
 	if ((iocb->ki_pos & mp->m_blockmask) ||
 	    ((iocb->ki_pos + count) & mp->m_blockmask)) {
 		unaligned_io = 1;
+
+		/*
+		 * We can't properly handle unaligned direct I/O to reflink
+		 * files yet, as we can't unshare a partial block.
+		 */
+		if (xfs_is_reflink_inode(ip)) {
+			trace_xfs_reflink_bounce_dio_write(ip, iocb->ki_pos, count);
+			return -EREMCHG;
+		}
 		iolock = XFS_IOLOCK_EXCL;
 	} else {
 		iolock = XFS_IOLOCK_SHARED;
@@ -675,8 +684,10 @@ xfs_file_buffered_aio_write(
 	struct xfs_inode	*ip = XFS_I(inode);
 	ssize_t			ret;
 	int			enospc = 0;
-	int			iolock = XFS_IOLOCK_EXCL;
+	int			iolock;
 
+write_retry:
+	iolock = XFS_IOLOCK_EXCL;
 	xfs_rw_ilock(ip, iolock);
 
 	ret = xfs_file_aio_write_checks(iocb, from, &iolock);
@@ -686,7 +697,6 @@ xfs_file_buffered_aio_write(
 	/* We can write back this queue in page reclaim */
 	current->backing_dev_info = inode_to_bdi(inode);
 
-write_retry:
 	trace_xfs_file_buffered_write(ip, iov_iter_count(from), iocb->ki_pos);
 	ret = iomap_file_buffered_write(iocb, from, &xfs_iomap_ops);
 	if (likely(ret >= 0))
@@ -702,26 +712,31 @@ write_retry:
 	 * running at the same time.
 	 */
 	if (ret == -EDQUOT && !enospc) {
+		xfs_rw_iunlock(ip, iolock);
 		enospc = xfs_inode_free_quota_eofblocks(ip);
 		if (enospc)
 			goto write_retry;
 		enospc = xfs_inode_free_quota_cowblocks(ip);
 		if (enospc)
 			goto write_retry;
+		iolock = 0;
 	} else if (ret == -ENOSPC && !enospc) {
 		struct xfs_eofblocks eofb = {0};
 
 		enospc = 1;
 		xfs_flush_inodes(ip->i_mount);
-		eofb.eof_scan_owner = ip->i_ino; /* for locking */
+
+		xfs_rw_iunlock(ip, iolock);
 		eofb.eof_flags = XFS_EOF_FLAGS_SYNC;
 		xfs_icache_free_eofblocks(ip->i_mount, &eofb);
+		xfs_icache_free_cowblocks(ip->i_mount, &eofb);
 		goto write_retry;
 	}
 
 	current->backing_dev_info = NULL;
 out:
-	xfs_rw_iunlock(ip, iolock);
+	if (iolock)
+		xfs_rw_iunlock(ip, iolock);
 	return ret;
 }
 
@@ -809,7 +824,7 @@ xfs_file_fallocate(
 		if (error)
 			goto out_unlock;
 	} else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
-		unsigned blksize_mask = (1 << inode->i_blkbits) - 1;
+		unsigned int blksize_mask = i_blocksize(inode) - 1;
 
 		if (offset & blksize_mask || len & blksize_mask) {
 			error = -EINVAL;
@@ -831,7 +846,7 @@ xfs_file_fallocate(
 		if (error)
 			goto out_unlock;
 	} else if (mode & FALLOC_FL_INSERT_RANGE) {
-		unsigned blksize_mask = (1 << inode->i_blkbits) - 1;
+		unsigned int blksize_mask = i_blocksize(inode) - 1;
 
 		new_size = i_size_read(inode) + len;
 		if (offset & blksize_mask || len & blksize_mask) {
@@ -939,7 +954,6 @@ xfs_file_clone_range(
 				     len, false);
 }
 
-#define XFS_MAX_DEDUPE_LEN	(16 * 1024 * 1024)
 STATIC ssize_t
 xfs_file_dedupe_range(
 	struct file	*src_file,
@@ -950,14 +964,6 @@ xfs_file_dedupe_range(
 {
 	int		error;
 
-	/*
-	 * Limit the total length we will dedupe for each operation.
-	 * This is intended to bound the total time spent in this
-	 * ioctl to something sane.
-	 */
-	if (len > XFS_MAX_DEDUPE_LEN)
-		len = XFS_MAX_DEDUPE_LEN;
-
 	error = xfs_reflink_remap_range(src_file, loff, dst_file, dst_loff,
 				     len, true);
 	if (error)
@@ -996,9 +1002,9 @@ xfs_dir_open(
 	 */
 	mode = xfs_ilock_data_map_shared(ip);
 	if (ip->i_d.di_nextents > 0)
-		xfs_dir3_data_readahead(ip, 0, -1);
+		error = xfs_dir3_data_readahead(ip, 0, -1);
 	xfs_iunlock(ip, mode);
-	return 0;
+	return error;
 }
 
 STATIC int
@@ -1125,49 +1131,17 @@ xfs_find_get_desired_pgoff(
 
 	index = startoff >> PAGE_SHIFT;
 	endoff = XFS_FSB_TO_B(mp, map->br_startoff + map->br_blockcount);
-	end = endoff >> PAGE_SHIFT;
+	end = (endoff - 1) >> PAGE_SHIFT;
 	do {
 		int		want;
 		unsigned	nr_pages;
 		unsigned int	i;
 
-		want = min_t(pgoff_t, end - index, PAGEVEC_SIZE);
+		want = min_t(pgoff_t, end - index, PAGEVEC_SIZE - 1) + 1;
 		nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index,
 					  want);
-		/*
-		 * No page mapped into given range.  If we are searching holes
-		 * and if this is the first time we got into the loop, it means
-		 * that the given offset is landed in a hole, return it.
-		 *
-		 * If we have already stepped through some block buffers to find
-		 * holes but they all contains data.  In this case, the last
-		 * offset is already updated and pointed to the end of the last
-		 * mapped page, if it does not reach the endpoint to search,
-		 * that means there should be a hole between them.
-		 */
-		if (nr_pages == 0) {
-			/* Data search found nothing */
-			if (type == DATA_OFF)
-				break;
-
-			ASSERT(type == HOLE_OFF);
-			if (lastoff == startoff || lastoff < endoff) {
-				found = true;
-				*offset = lastoff;
-			}
-			break;
-		}
-
-		/*
-		 * At lease we found one page.  If this is the first time we
-		 * step into the loop, and if the first page index offset is
-		 * greater than the given search offset, a hole was found.
-		 */
-		if (type == HOLE_OFF && lastoff == startoff &&
-		    lastoff < page_offset(pvec.pages[0])) {
-			found = true;
+		if (nr_pages == 0)
 			break;
-		}
 
 		for (i = 0; i < nr_pages; i++) {
 			struct page	*page = pvec.pages[i];
@@ -1180,18 +1154,18 @@ xfs_find_get_desired_pgoff(
 			 * file mapping. However, page->index will not change
 			 * because we have a reference on the page.
 			 *
-			 * Searching done if the page index is out of range.
-			 * If the current offset is not reaches the end of
-			 * the specified search range, there should be a hole
-			 * between them.
+			 * If current page offset is beyond where we've ended,
+			 * we've found a hole.
 			 */
-			if (page->index > end) {
-				if (type == HOLE_OFF && lastoff < endoff) {
-					*offset = lastoff;
-					found = true;
-				}
+			if (type == HOLE_OFF && lastoff < endoff &&
+			    lastoff < page_offset(pvec.pages[i])) {
+				found = true;
+				*offset = lastoff;
 				goto out;
 			}
+			/* Searching done if the page index is out of range. */
+			if (page->index > end)
+				goto out;
 
 			lock_page(page);
 			/*
@@ -1233,21 +1207,20 @@ xfs_find_get_desired_pgoff(
 
 		/*
 		 * The number of returned pages less than our desired, search
-		 * done.  In this case, nothing was found for searching data,
-		 * but we found a hole behind the last offset.
+		 * done.
 		 */
-		if (nr_pages < want) {
-			if (type == HOLE_OFF) {
-				*offset = lastoff;
-				found = true;
-			}
+		if (nr_pages < want)
 			break;
-		}
 
 		index = pvec.pages[i - 1]->index + 1;
 		pagevec_release(&pvec);
 	} while (index <= end);
 
+	/* No page at lastoff and we are not done - we found a hole. */
+	if (type == HOLE_OFF && lastoff < endoff) {
+		*offset = lastoff;
+		found = true;
+	}
 out:
 	pagevec_release(&pvec);
 	return found;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_fsops.c linux-libre-4.9.52-gnu/fs/xfs/xfs_fsops.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_fsops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_fsops.c	2017-09-27 08:40:05.000000000 -0400
@@ -631,6 +631,20 @@ xfs_growfs_data_private(
 	xfs_set_low_space_thresholds(mp);
 	mp->m_alloc_set_aside = xfs_alloc_set_aside(mp);
 
+	/*
+	 * If we expanded the last AG, free the per-AG reservation
+	 * so we can reinitialize it with the new size.
+	 */
+	if (new) {
+		struct xfs_perag	*pag;
+
+		pag = xfs_perag_get(mp, agno);
+		error = xfs_ag_resv_free(pag);
+		xfs_perag_put(pag);
+		if (error)
+			goto out;
+	}
+
 	/* Reserve AG metadata blocks. */
 	error = xfs_fs_reserve_ag_blocks(mp);
 	if (error && error != -ENOSPC)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_icache.c linux-libre-4.9.52-gnu/fs/xfs/xfs_icache.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_icache.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_icache.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,7 +66,6 @@ xfs_inode_alloc(
 
 	XFS_STATS_INC(mp, vn_active);
 	ASSERT(atomic_read(&ip->i_pincount) == 0);
-	ASSERT(!spin_is_locked(&ip->i_flags_lock));
 	ASSERT(!xfs_isiflocked(ip));
 	ASSERT(ip->i_ino == 0);
 
@@ -123,7 +122,6 @@ __xfs_inode_free(
 {
 	/* asserts to verify all state is correct here */
 	ASSERT(atomic_read(&ip->i_pincount) == 0);
-	ASSERT(!xfs_isiflocked(ip));
 	XFS_STATS_DEC(ip->i_mount, vn_active);
 
 	call_rcu(&VFS_I(ip)->i_rcu, xfs_inode_free_callback);
@@ -133,6 +131,8 @@ void
 xfs_inode_free(
 	struct xfs_inode	*ip)
 {
+	ASSERT(!xfs_isiflocked(ip));
+
 	/*
 	 * Because we use RCU freeing we need to ensure the inode always
 	 * appears to be reclaimed with an invalid inode number when in the
@@ -191,7 +191,7 @@ xfs_perag_set_reclaim_tag(
 {
 	struct xfs_mount	*mp = pag->pag_mount;
 
-	ASSERT(spin_is_locked(&pag->pag_ici_lock));
+	lockdep_assert_held(&pag->pag_ici_lock);
 	if (pag->pag_ici_reclaimable++)
 		return;
 
@@ -213,7 +213,7 @@ xfs_perag_clear_reclaim_tag(
 {
 	struct xfs_mount	*mp = pag->pag_mount;
 
-	ASSERT(spin_is_locked(&pag->pag_ici_lock));
+	lockdep_assert_held(&pag->pag_ici_lock);
 	if (--pag->pag_ici_reclaimable)
 		return;
 
@@ -263,6 +263,22 @@ xfs_inode_clear_reclaim_tag(
 	xfs_perag_clear_reclaim_tag(pag);
 }
 
+static void
+xfs_inew_wait(
+	struct xfs_inode	*ip)
+{
+	wait_queue_head_t *wq = bit_waitqueue(&ip->i_flags, __XFS_INEW_BIT);
+	DEFINE_WAIT_BIT(wait, &ip->i_flags, __XFS_INEW_BIT);
+
+	do {
+		prepare_to_wait(wq, &wait.wait, TASK_UNINTERRUPTIBLE);
+		if (!xfs_iflags_test(ip, XFS_INEW))
+			break;
+		schedule();
+	} while (true);
+	finish_wait(wq, &wait.wait);
+}
+
 /*
  * When we recycle a reclaimable inode, we need to re-initialise the VFS inode
  * part of the structure. This is made more complex by the fact we store
@@ -367,14 +383,17 @@ xfs_iget_cache_hit(
 
 		error = xfs_reinit_inode(mp, inode);
 		if (error) {
+			bool wake;
 			/*
 			 * Re-initializing the inode failed, and we are in deep
 			 * trouble.  Try to re-add it to the reclaim list.
 			 */
 			rcu_read_lock();
 			spin_lock(&ip->i_flags_lock);
-
+			wake = !!__xfs_iflags_test(ip, XFS_INEW);
 			ip->i_flags &= ~(XFS_INEW | XFS_IRECLAIM);
+			if (wake)
+				wake_up_bit(&ip->i_flags, __XFS_INEW_BIT);
 			ASSERT(ip->i_flags & XFS_IRECLAIMABLE);
 			trace_xfs_iget_reclaim_fail(ip);
 			goto out_error;
@@ -624,9 +643,11 @@ out_error_or_again:
 
 STATIC int
 xfs_inode_ag_walk_grab(
-	struct xfs_inode	*ip)
+	struct xfs_inode	*ip,
+	int			flags)
 {
 	struct inode		*inode = VFS_I(ip);
+	bool			newinos = !!(flags & XFS_AGITER_INEW_WAIT);
 
 	ASSERT(rcu_read_lock_held());
 
@@ -644,7 +665,8 @@ xfs_inode_ag_walk_grab(
 		goto out_unlock_noent;
 
 	/* avoid new or reclaimable inodes. Leave for reclaim code to flush */
-	if (__xfs_iflags_test(ip, XFS_INEW | XFS_IRECLAIMABLE | XFS_IRECLAIM))
+	if ((!newinos && __xfs_iflags_test(ip, XFS_INEW)) ||
+	    __xfs_iflags_test(ip, XFS_IRECLAIMABLE | XFS_IRECLAIM))
 		goto out_unlock_noent;
 	spin_unlock(&ip->i_flags_lock);
 
@@ -672,7 +694,8 @@ xfs_inode_ag_walk(
 					   void *args),
 	int			flags,
 	void			*args,
-	int			tag)
+	int			tag,
+	int			iter_flags)
 {
 	uint32_t		first_index;
 	int			last_error = 0;
@@ -714,7 +737,7 @@ restart:
 		for (i = 0; i < nr_found; i++) {
 			struct xfs_inode *ip = batch[i];
 
-			if (done || xfs_inode_ag_walk_grab(ip))
+			if (done || xfs_inode_ag_walk_grab(ip, iter_flags))
 				batch[i] = NULL;
 
 			/*
@@ -742,6 +765,9 @@ restart:
 		for (i = 0; i < nr_found; i++) {
 			if (!batch[i])
 				continue;
+			if ((iter_flags & XFS_AGITER_INEW_WAIT) &&
+			    xfs_iflags_test(batch[i], XFS_INEW))
+				xfs_inew_wait(batch[i]);
 			error = execute(batch[i], flags, args);
 			IRELE(batch[i]);
 			if (error == -EAGAIN) {
@@ -821,12 +847,13 @@ xfs_cowblocks_worker(
 }
 
 int
-xfs_inode_ag_iterator(
+xfs_inode_ag_iterator_flags(
 	struct xfs_mount	*mp,
 	int			(*execute)(struct xfs_inode *ip, int flags,
 					   void *args),
 	int			flags,
-	void			*args)
+	void			*args,
+	int			iter_flags)
 {
 	struct xfs_perag	*pag;
 	int			error = 0;
@@ -836,7 +863,8 @@ xfs_inode_ag_iterator(
 	ag = 0;
 	while ((pag = xfs_perag_get(mp, ag))) {
 		ag = pag->pag_agno + 1;
-		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, -1);
+		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, -1,
+					  iter_flags);
 		xfs_perag_put(pag);
 		if (error) {
 			last_error = error;
@@ -848,6 +876,17 @@ xfs_inode_ag_iterator(
 }
 
 int
+xfs_inode_ag_iterator(
+	struct xfs_mount	*mp,
+	int			(*execute)(struct xfs_inode *ip, int flags,
+					   void *args),
+	int			flags,
+	void			*args)
+{
+	return xfs_inode_ag_iterator_flags(mp, execute, flags, args, 0);
+}
+
+int
 xfs_inode_ag_iterator_tag(
 	struct xfs_mount	*mp,
 	int			(*execute)(struct xfs_inode *ip, int flags,
@@ -864,7 +903,8 @@ xfs_inode_ag_iterator_tag(
 	ag = 0;
 	while ((pag = xfs_perag_get_tag(mp, ag, tag))) {
 		ag = pag->pag_agno + 1;
-		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, tag);
+		error = xfs_inode_ag_walk(mp, pag, execute, flags, args, tag,
+					  0);
 		xfs_perag_put(pag);
 		if (error) {
 			last_error = error;
@@ -981,6 +1021,7 @@ restart:
 
 	if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
 		xfs_iunpin_wait(ip);
+		/* xfs_iflush_abort() drops the flush lock */
 		xfs_iflush_abort(ip, false);
 		goto reclaim;
 	}
@@ -989,10 +1030,10 @@ restart:
 			goto out_ifunlock;
 		xfs_iunpin_wait(ip);
 	}
-	if (xfs_iflags_test(ip, XFS_ISTALE))
-		goto reclaim;
-	if (xfs_inode_clean(ip))
+	if (xfs_iflags_test(ip, XFS_ISTALE) || xfs_inode_clean(ip)) {
+		xfs_ifunlock(ip);
 		goto reclaim;
+	}
 
 	/*
 	 * Never flush out dirty data during non-blocking reclaim, as it would
@@ -1030,25 +1071,24 @@ restart:
 		xfs_buf_relse(bp);
 	}
 
-	xfs_iflock(ip);
 reclaim:
+	ASSERT(!xfs_isiflocked(ip));
+
 	/*
 	 * Because we use RCU freeing we need to ensure the inode always appears
 	 * to be reclaimed with an invalid inode number when in the free state.
-	 * We do this as early as possible under the ILOCK and flush lock so
-	 * that xfs_iflush_cluster() can be guaranteed to detect races with us
-	 * here. By doing this, we guarantee that once xfs_iflush_cluster has
-	 * locked both the XFS_ILOCK and the flush lock that it will see either
-	 * a valid, flushable inode that will serialise correctly against the
-	 * locks below, or it will see a clean (and invalid) inode that it can
-	 * skip.
+	 * We do this as early as possible under the ILOCK so that
+	 * xfs_iflush_cluster() and xfs_ifree_cluster() can be guaranteed to
+	 * detect races with us here. By doing this, we guarantee that once
+	 * xfs_iflush_cluster() or xfs_ifree_cluster() has locked XFS_ILOCK that
+	 * it will see either a valid inode that will serialise correctly, or it
+	 * will see an invalid inode that it can skip.
 	 */
 	spin_lock(&ip->i_flags_lock);
 	ip->i_flags = XFS_IRECLAIM;
 	ip->i_ino = 0;
 	spin_unlock(&ip->i_flags_lock);
 
-	xfs_ifunlock(ip);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 
 	XFS_STATS_INC(ip->i_mount, xs_ig_reclaims);
@@ -1323,13 +1363,10 @@ xfs_inode_free_eofblocks(
 	int			flags,
 	void			*args)
 {
-	int ret;
+	int ret = 0;
 	struct xfs_eofblocks *eofb = args;
-	bool need_iolock = true;
 	int match;
 
-	ASSERT(!eofb || (eofb && eofb->eof_scan_owner != 0));
-
 	if (!xfs_can_free_eofblocks(ip, false)) {
 		/* inode could be preallocated or append-only */
 		trace_xfs_inode_free_eofblocks_invalid(ip);
@@ -1357,21 +1394,19 @@ xfs_inode_free_eofblocks(
 		if (eofb->eof_flags & XFS_EOF_FLAGS_MINFILESIZE &&
 		    XFS_ISIZE(ip) < eofb->eof_min_file_size)
 			return 0;
-
-		/*
-		 * A scan owner implies we already hold the iolock. Skip it in
-		 * xfs_free_eofblocks() to avoid deadlock. This also eliminates
-		 * the possibility of EAGAIN being returned.
-		 */
-		if (eofb->eof_scan_owner == ip->i_ino)
-			need_iolock = false;
 	}
 
-	ret = xfs_free_eofblocks(ip->i_mount, ip, need_iolock);
-
-	/* don't revisit the inode if we're not waiting */
-	if (ret == -EAGAIN && !(flags & SYNC_WAIT))
-		ret = 0;
+	/*
+	 * If the caller is waiting, return -EAGAIN to keep the background
+	 * scanner moving and revisit the inode in a subsequent pass.
+	 */
+	if (!xfs_ilock_nowait(ip, XFS_IOLOCK_EXCL)) {
+		if (flags & SYNC_WAIT)
+			ret = -EAGAIN;
+		return ret;
+	}
+	ret = xfs_free_eofblocks(ip);
+	xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 
 	return ret;
 }
@@ -1418,15 +1453,10 @@ __xfs_inode_free_quota_eofblocks(
 	struct xfs_eofblocks eofb = {0};
 	struct xfs_dquot *dq;
 
-	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
-
 	/*
-	 * Set the scan owner to avoid a potential livelock. Otherwise, the scan
-	 * can repeatedly trylock on the inode we're currently processing. We
-	 * run a sync scan to increase effectiveness and use the union filter to
+	 * Run a sync scan to increase effectiveness and use the union filter to
 	 * cover all applicable quotas in a single scan.
 	 */
-	eofb.eof_scan_owner = ip->i_ino;
 	eofb.eof_flags = XFS_EOF_FLAGS_UNION|XFS_EOF_FLAGS_SYNC;
 
 	if (XFS_IS_UQUOTA_ENFORCED(ip->i_mount)) {
@@ -1578,12 +1608,14 @@ xfs_inode_free_cowblocks(
 {
 	int ret;
 	struct xfs_eofblocks *eofb = args;
-	bool need_iolock = true;
 	int match;
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
 
-	ASSERT(!eofb || (eofb && eofb->eof_scan_owner != 0));
-
-	if (!xfs_reflink_has_real_cow_blocks(ip)) {
+	/*
+	 * Just clear the tag if we have an empty cow fork or none at all. It's
+	 * possible the inode was fully unshared since it was originally tagged.
+	 */
+	if (!xfs_is_reflink_inode(ip) || !ifp->if_bytes) {
 		trace_xfs_inode_free_cowblocks_invalid(ip);
 		xfs_inode_clear_cowblocks_tag(ip);
 		return 0;
@@ -1593,7 +1625,8 @@ xfs_inode_free_cowblocks(
 	 * If the mapping is dirty or under writeback we cannot touch the
 	 * CoW fork.  Leave it alone if we're in the midst of a directio.
 	 */
-	if (mapping_tagged(VFS_I(ip)->i_mapping, PAGECACHE_TAG_DIRTY) ||
+	if ((VFS_I(ip)->i_state & I_DIRTY_PAGES) ||
+	    mapping_tagged(VFS_I(ip)->i_mapping, PAGECACHE_TAG_DIRTY) ||
 	    mapping_tagged(VFS_I(ip)->i_mapping, PAGECACHE_TAG_WRITEBACK) ||
 	    atomic_read(&VFS_I(ip)->i_dio_count))
 		return 0;
@@ -1610,28 +1643,16 @@ xfs_inode_free_cowblocks(
 		if (eofb->eof_flags & XFS_EOF_FLAGS_MINFILESIZE &&
 		    XFS_ISIZE(ip) < eofb->eof_min_file_size)
 			return 0;
-
-		/*
-		 * A scan owner implies we already hold the iolock. Skip it in
-		 * xfs_free_eofblocks() to avoid deadlock. This also eliminates
-		 * the possibility of EAGAIN being returned.
-		 */
-		if (eofb->eof_scan_owner == ip->i_ino)
-			need_iolock = false;
 	}
 
 	/* Free the CoW blocks */
-	if (need_iolock) {
-		xfs_ilock(ip, XFS_IOLOCK_EXCL);
-		xfs_ilock(ip, XFS_MMAPLOCK_EXCL);
-	}
+	xfs_ilock(ip, XFS_IOLOCK_EXCL);
+	xfs_ilock(ip, XFS_MMAPLOCK_EXCL);
 
-	ret = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF);
+	ret = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF, false);
 
-	if (need_iolock) {
-		xfs_iunlock(ip, XFS_MMAPLOCK_EXCL);
-		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
-	}
+	xfs_iunlock(ip, XFS_MMAPLOCK_EXCL);
+	xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_icache.h linux-libre-4.9.52-gnu/fs/xfs/xfs_icache.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_icache.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_icache.h	2017-09-27 08:40:05.000000000 -0400
@@ -27,7 +27,6 @@ struct xfs_eofblocks {
 	kgid_t		eof_gid;
 	prid_t		eof_prid;
 	__u64		eof_min_file_size;
-	xfs_ino_t	eof_scan_owner;
 };
 
 #define SYNC_WAIT		0x0001	/* wait for i/o to complete */
@@ -49,6 +48,11 @@ struct xfs_eofblocks {
 #define XFS_IGET_UNTRUSTED	0x2
 #define XFS_IGET_DONTCACHE	0x4
 
+/*
+ * flags for AG inode iterator
+ */
+#define XFS_AGITER_INEW_WAIT	0x1	/* wait on new inodes */
+
 int xfs_iget(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t ino,
 	     uint flags, uint lock_flags, xfs_inode_t **ipp);
 
@@ -80,6 +84,9 @@ void xfs_cowblocks_worker(struct work_st
 int xfs_inode_ag_iterator(struct xfs_mount *mp,
 	int (*execute)(struct xfs_inode *ip, int flags, void *args),
 	int flags, void *args);
+int xfs_inode_ag_iterator_flags(struct xfs_mount *mp,
+	int (*execute)(struct xfs_inode *ip, int flags, void *args),
+	int flags, void *args, int iter_flags);
 int xfs_inode_ag_iterator_tag(struct xfs_mount *mp,
 	int (*execute)(struct xfs_inode *ip, int flags, void *args),
 	int flags, void *args, int tag);
@@ -102,7 +109,6 @@ xfs_fs_eofblocks_from_user(
 	dst->eof_flags = src->eof_flags;
 	dst->eof_prid = src->eof_prid;
 	dst->eof_min_file_size = src->eof_min_file_size;
-	dst->eof_scan_owner = NULLFSINO;
 
 	dst->eof_uid = INVALID_UID;
 	if (src->eof_flags & XFS_EOF_FLAGS_UID) {
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_inode.c linux-libre-4.9.52-gnu/fs/xfs/xfs_inode.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_inode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_inode.c	2017-09-27 08:40:05.000000000 -0400
@@ -50,6 +50,7 @@
 #include "xfs_log.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_reflink.h"
+#include "xfs_dir2_priv.h"
 
 kmem_zone_t *xfs_inode_zone;
 
@@ -880,7 +881,6 @@ xfs_ialloc(
 	case S_IFREG:
 	case S_IFDIR:
 		if (pip && (pip->i_d.di_flags & XFS_DIFLAG_ANY)) {
-			uint64_t	di_flags2 = 0;
 			uint		di_flags = 0;
 
 			if (S_ISDIR(mode)) {
@@ -917,20 +917,23 @@ xfs_ialloc(
 				di_flags |= XFS_DIFLAG_NODEFRAG;
 			if (pip->i_d.di_flags & XFS_DIFLAG_FILESTREAM)
 				di_flags |= XFS_DIFLAG_FILESTREAM;
-			if (pip->i_d.di_flags2 & XFS_DIFLAG2_DAX)
-				di_flags2 |= XFS_DIFLAG2_DAX;
 
 			ip->i_d.di_flags |= di_flags;
-			ip->i_d.di_flags2 |= di_flags2;
 		}
 		if (pip &&
 		    (pip->i_d.di_flags2 & XFS_DIFLAG2_ANY) &&
 		    pip->i_d.di_version == 3 &&
 		    ip->i_d.di_version == 3) {
+			uint64_t	di_flags2 = 0;
+
 			if (pip->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE) {
-				ip->i_d.di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
+				di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
 				ip->i_d.di_cowextsize = pip->i_d.di_cowextsize;
 			}
+			if (pip->i_d.di_flags2 & XFS_DIFLAG2_DAX)
+				di_flags2 |= XFS_DIFLAG2_DAX;
+
+			ip->i_d.di_flags2 |= di_flags2;
 		}
 		/* FALLTHROUGH */
 	case S_IFLNK:
@@ -1624,7 +1627,7 @@ xfs_itruncate_extents(
 
 	/* Remove all pending CoW reservations. */
 	error = xfs_reflink_cancel_cow_blocks(ip, &tp, first_unmap_block,
-			last_block);
+			last_block, true);
 	if (error)
 		goto out;
 
@@ -1701,32 +1704,34 @@ xfs_release(
 	if (xfs_can_free_eofblocks(ip, false)) {
 
 		/*
+		 * Check if the inode is being opened, written and closed
+		 * frequently and we have delayed allocation blocks outstanding
+		 * (e.g. streaming writes from the NFS server), truncating the
+		 * blocks past EOF will cause fragmentation to occur.
+		 *
+		 * In this case don't do the truncation, but we have to be
+		 * careful how we detect this case. Blocks beyond EOF show up as
+		 * i_delayed_blks even when the inode is clean, so we need to
+		 * truncate them away first before checking for a dirty release.
+		 * Hence on the first dirty close we will still remove the
+		 * speculative allocation, but after that we will leave it in
+		 * place.
+		 */
+		if (xfs_iflags_test(ip, XFS_IDIRTY_RELEASE))
+			return 0;
+		/*
 		 * If we can't get the iolock just skip truncating the blocks
 		 * past EOF because we could deadlock with the mmap_sem
-		 * otherwise.  We'll get another chance to drop them once the
+		 * otherwise. We'll get another chance to drop them once the
 		 * last reference to the inode is dropped, so we'll never leak
 		 * blocks permanently.
-		 *
-		 * Further, check if the inode is being opened, written and
-		 * closed frequently and we have delayed allocation blocks
-		 * outstanding (e.g. streaming writes from the NFS server),
-		 * truncating the blocks past EOF will cause fragmentation to
-		 * occur.
-		 *
-		 * In this case don't do the truncation, either, but we have to
-		 * be careful how we detect this case. Blocks beyond EOF show
-		 * up as i_delayed_blks even when the inode is clean, so we
-		 * need to truncate them away first before checking for a dirty
-		 * release. Hence on the first dirty close we will still remove
-		 * the speculative allocation, but after that we will leave it
-		 * in place.
 		 */
-		if (xfs_iflags_test(ip, XFS_IDIRTY_RELEASE))
-			return 0;
-
-		error = xfs_free_eofblocks(mp, ip, true);
-		if (error && error != -EAGAIN)
-			return error;
+		if (xfs_ilock_nowait(ip, XFS_IOLOCK_EXCL)) {
+			error = xfs_free_eofblocks(ip);
+			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+			if (error)
+				return error;
+		}
 
 		/* delalloc blocks after truncation means it really is dirty */
 		if (ip->i_delayed_blks)
@@ -1801,22 +1806,23 @@ xfs_inactive_ifree(
 	int			error;
 
 	/*
-	 * The ifree transaction might need to allocate blocks for record
-	 * insertion to the finobt. We don't want to fail here at ENOSPC, so
-	 * allow ifree to dip into the reserved block pool if necessary.
-	 *
-	 * Freeing large sets of inodes generally means freeing inode chunks,
-	 * directory and file data blocks, so this should be relatively safe.
-	 * Only under severe circumstances should it be possible to free enough
-	 * inodes to exhaust the reserve block pool via finobt expansion while
-	 * at the same time not creating free space in the filesystem.
+	 * We try to use a per-AG reservation for any block needed by the finobt
+	 * tree, but as the finobt feature predates the per-AG reservation
+	 * support a degraded file system might not have enough space for the
+	 * reservation at mount time.  In that case try to dip into the reserved
+	 * pool and pray.
 	 *
 	 * Send a warning if the reservation does happen to fail, as the inode
 	 * now remains allocated and sits on the unlinked list until the fs is
 	 * repaired.
 	 */
-	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree,
-			XFS_IFREE_SPACE_RES(mp), 0, XFS_TRANS_RESERVE, &tp);
+	if (unlikely(mp->m_inotbt_nores)) {
+		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree,
+				XFS_IFREE_SPACE_RES(mp), 0, XFS_TRANS_RESERVE,
+				&tp);
+	} else {
+		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ifree, 0, 0, 0, &tp);
+	}
 	if (error) {
 		if (error == -ENOSPC) {
 			xfs_warn_ratelimited(mp,
@@ -1911,9 +1917,13 @@ xfs_inactive(
 		 * force is true because we are evicting an inode from the
 		 * cache. Post-eof blocks must be freed, lest we end up with
 		 * broken free space accounting.
+		 *
+		 * Note: don't bother with iolock here since lockdep complains
+		 * about acquiring it in reclaim context. We have the only
+		 * reference to the inode at this point anyways.
 		 */
 		if (xfs_can_free_eofblocks(ip, true))
-			xfs_free_eofblocks(mp, ip, false);
+			xfs_free_eofblocks(ip);
 
 		return;
 	}
@@ -2041,7 +2051,6 @@ xfs_iunlink(
 	agi->agi_unlinked[bucket_index] = cpu_to_be32(agino);
 	offset = offsetof(xfs_agi_t, agi_unlinked) +
 		(sizeof(xfs_agino_t) * bucket_index);
-	xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
 	xfs_trans_log_buf(tp, agibp, offset,
 			  (offset + sizeof(xfs_agino_t) - 1));
 	return 0;
@@ -2133,7 +2142,6 @@ xfs_iunlink_remove(
 		agi->agi_unlinked[bucket_index] = cpu_to_be32(next_agino);
 		offset = offsetof(xfs_agi_t, agi_unlinked) +
 			(sizeof(xfs_agino_t) * bucket_index);
-		xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
 		xfs_trans_log_buf(tp, agibp, offset,
 				  (offset + sizeof(xfs_agino_t) - 1));
 	} else {
@@ -2360,11 +2368,24 @@ retry:
 			 * already marked stale. If we can't lock it, back off
 			 * and retry.
 			 */
-			if (ip != free_ip &&
-			    !xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
-				rcu_read_unlock();
-				delay(1);
-				goto retry;
+			if (ip != free_ip) {
+				if (!xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
+					rcu_read_unlock();
+					delay(1);
+					goto retry;
+				}
+
+				/*
+				 * Check the inode number again in case we're
+				 * racing with freeing in xfs_reclaim_inode().
+				 * See the comments in that function for more
+				 * information as to why the initial check is
+				 * not sufficient.
+				 */
+				if (ip->i_ino != inum + i) {
+					xfs_iunlock(ip, XFS_ILOCK_EXCL);
+					continue;
+				}
 			}
 			rcu_read_unlock();
 
@@ -3558,6 +3579,12 @@ xfs_iflush_int(
 	if (ip->i_d.di_version < 3)
 		ip->i_d.di_flushiter++;
 
+	/* Check the inline directory data. */
+	if (S_ISDIR(VFS_I(ip)->i_mode) &&
+	    ip->i_d.di_format == XFS_DINODE_FMT_LOCAL &&
+	    xfs_dir2_sf_verify(ip))
+		goto corrupt_out;
+
 	/*
 	 * Copy the dirty parts of the inode into the on-disk inode.  We always
 	 * copy out the core of the inode, because if the inode is dirty at all
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_inode.h linux-libre-4.9.52-gnu/fs/xfs/xfs_inode.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_inode.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_inode.h	2017-09-27 08:40:05.000000000 -0400
@@ -217,7 +217,8 @@ static inline bool xfs_is_reflink_inode(
 #define XFS_IRECLAIM		(1 << 0) /* started reclaiming this inode */
 #define XFS_ISTALE		(1 << 1) /* inode has been staled */
 #define XFS_IRECLAIMABLE	(1 << 2) /* inode can be reclaimed */
-#define XFS_INEW		(1 << 3) /* inode has just been allocated */
+#define __XFS_INEW_BIT		3	 /* inode has just been allocated */
+#define XFS_INEW		(1 << __XFS_INEW_BIT)
 #define XFS_ITRUNCATED		(1 << 5) /* truncated down so flush-on-close */
 #define XFS_IDIRTY_RELEASE	(1 << 6) /* dirty release already seen */
 #define __XFS_IFLOCK_BIT	7	 /* inode is being flushed right now */
@@ -246,6 +247,11 @@ static inline bool xfs_is_reflink_inode(
  * Synchronize processes attempting to flush the in-core inode back to disk.
  */
 
+static inline int xfs_isiflocked(struct xfs_inode *ip)
+{
+	return xfs_iflags_test(ip, XFS_IFLOCK);
+}
+
 extern void __xfs_iflock(struct xfs_inode *ip);
 
 static inline int xfs_iflock_nowait(struct xfs_inode *ip)
@@ -261,16 +267,12 @@ static inline void xfs_iflock(struct xfs
 
 static inline void xfs_ifunlock(struct xfs_inode *ip)
 {
+	ASSERT(xfs_isiflocked(ip));
 	xfs_iflags_clear(ip, XFS_IFLOCK);
 	smp_mb();
 	wake_up_bit(&ip->i_flags, __XFS_IFLOCK_BIT);
 }
 
-static inline int xfs_isiflocked(struct xfs_inode *ip)
-{
-	return xfs_iflags_test(ip, XFS_IFLOCK);
-}
-
 /*
  * Flags for inode locking.
  * Bit ranges:	1<<1  - 1<<16-1 -- iolock/ilock modes (bitfield)
@@ -466,6 +468,7 @@ static inline void xfs_finish_inode_setu
 	xfs_iflags_clear(ip, XFS_INEW);
 	barrier();
 	unlock_new_inode(VFS_I(ip));
+	wake_up_bit(&ip->i_flags, __XFS_INEW_BIT);
 }
 
 static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_inode_item.c linux-libre-4.9.52-gnu/fs/xfs/xfs_inode_item.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_inode_item.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_inode_item.c	2017-09-27 08:40:05.000000000 -0400
@@ -27,6 +27,7 @@
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_trans_priv.h"
+#include "xfs_buf_item.h"
 #include "xfs_log.h"
 
 
@@ -164,7 +165,7 @@ xfs_inode_item_format_data_fork(
 			struct xfs_bmbt_rec *p;
 
 			ASSERT(ip->i_df.if_u1.if_extents != NULL);
-			ASSERT(ip->i_df.if_bytes / sizeof(xfs_bmbt_rec_t) > 0);
+			ASSERT(xfs_iext_count(&ip->i_df) > 0);
 
 			p = xlog_prepare_iovec(lv, vecp, XLOG_REG_TYPE_IEXT);
 			data_bytes = xfs_iextents_copy(ip, p, XFS_DATA_FORK);
@@ -261,7 +262,7 @@ xfs_inode_item_format_attr_fork(
 		    ip->i_afp->if_bytes > 0) {
 			struct xfs_bmbt_rec *p;
 
-			ASSERT(ip->i_afp->if_bytes / sizeof(xfs_bmbt_rec_t) ==
+			ASSERT(xfs_iext_count(ip->i_afp) ==
 				ip->i_d.di_anextents);
 			ASSERT(ip->i_afp->if_u1.if_extents != NULL);
 
@@ -475,6 +476,23 @@ xfs_inode_item_unpin(
 		wake_up_bit(&ip->i_flags, __XFS_IPINNED_BIT);
 }
 
+/*
+ * Callback used to mark a buffer with XFS_LI_FAILED when items in the buffer
+ * have been failed during writeback
+ *
+ * This informs the AIL that the inode is already flush locked on the next push,
+ * and acquires a hold on the buffer to ensure that it isn't reclaimed before
+ * dirty data makes it to disk.
+ */
+STATIC void
+xfs_inode_item_error(
+	struct xfs_log_item	*lip,
+	struct xfs_buf		*bp)
+{
+	ASSERT(xfs_isiflocked(INODE_ITEM(lip)->ili_inode));
+	xfs_set_li_failed(lip, bp);
+}
+
 STATIC uint
 xfs_inode_item_push(
 	struct xfs_log_item	*lip,
@@ -484,13 +502,28 @@ xfs_inode_item_push(
 {
 	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
 	struct xfs_inode	*ip = iip->ili_inode;
-	struct xfs_buf		*bp = NULL;
+	struct xfs_buf		*bp = lip->li_buf;
 	uint			rval = XFS_ITEM_SUCCESS;
 	int			error;
 
 	if (xfs_ipincount(ip) > 0)
 		return XFS_ITEM_PINNED;
 
+	/*
+	 * The buffer containing this item failed to be written back
+	 * previously. Resubmit the buffer for IO.
+	 */
+	if (lip->li_flags & XFS_LI_FAILED) {
+		if (!xfs_buf_trylock(bp))
+			return XFS_ITEM_LOCKED;
+
+		if (!xfs_buf_resubmit_failed_buffers(bp, lip, buffer_list))
+			rval = XFS_ITEM_FLUSHING;
+
+		xfs_buf_unlock(bp);
+		return rval;
+	}
+
 	if (!xfs_ilock_nowait(ip, XFS_ILOCK_SHARED))
 		return XFS_ITEM_LOCKED;
 
@@ -622,7 +655,8 @@ static const struct xfs_item_ops xfs_ino
 	.iop_unlock	= xfs_inode_item_unlock,
 	.iop_committed	= xfs_inode_item_committed,
 	.iop_push	= xfs_inode_item_push,
-	.iop_committing = xfs_inode_item_committing
+	.iop_committing = xfs_inode_item_committing,
+	.iop_error	= xfs_inode_item_error
 };
 
 
@@ -710,7 +744,8 @@ xfs_iflush_done(
 		 * the AIL lock.
 		 */
 		iip = INODE_ITEM(blip);
-		if (iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn)
+		if ((iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) ||
+		    lip->li_flags & XFS_LI_FAILED)
 			need_ail++;
 
 		blip = next;
@@ -718,7 +753,8 @@ xfs_iflush_done(
 
 	/* make sure we capture the state of the initial inode. */
 	iip = INODE_ITEM(lip);
-	if (iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn)
+	if ((iip->ili_logged && lip->li_lsn == iip->ili_flush_lsn) ||
+	    lip->li_flags & XFS_LI_FAILED)
 		need_ail++;
 
 	/*
@@ -731,22 +767,30 @@ xfs_iflush_done(
 	 * holding the lock before removing the inode from the AIL.
 	 */
 	if (need_ail) {
-		struct xfs_log_item *log_items[need_ail];
-		int i = 0;
+		bool			mlip_changed = false;
+
+		/* this is an opencoded batch version of xfs_trans_ail_delete */
 		spin_lock(&ailp->xa_lock);
 		for (blip = lip; blip; blip = blip->li_bio_list) {
-			iip = INODE_ITEM(blip);
-			if (iip->ili_logged &&
-			    blip->li_lsn == iip->ili_flush_lsn) {
-				log_items[i++] = blip;
+			if (INODE_ITEM(blip)->ili_logged &&
+			    blip->li_lsn == INODE_ITEM(blip)->ili_flush_lsn)
+				mlip_changed |= xfs_ail_delete_one(ailp, blip);
+			else {
+				xfs_clear_li_failed(blip);
 			}
-			ASSERT(i <= need_ail);
 		}
-		/* xfs_trans_ail_delete_bulk() drops the AIL lock. */
-		xfs_trans_ail_delete_bulk(ailp, log_items, i,
-					  SHUTDOWN_CORRUPT_INCORE);
-	}
 
+		if (mlip_changed) {
+			if (!XFS_FORCED_SHUTDOWN(ailp->xa_mount))
+				xlog_assign_tail_lsn_locked(ailp->xa_mount);
+			if (list_empty(&ailp->xa_ail))
+				wake_up_all(&ailp->xa_empty);
+		}
+		spin_unlock(&ailp->xa_lock);
+
+		if (mlip_changed)
+			xfs_log_space_wake(ailp->xa_mount);
+	}
 
 	/*
 	 * clean up and unlock the flush lock now we are done. We can clear the
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_ioctl.c linux-libre-4.9.52-gnu/fs/xfs/xfs_ioctl.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -910,16 +910,14 @@ xfs_ioc_fsgetxattr(
 	if (attr) {
 		if (ip->i_afp) {
 			if (ip->i_afp->if_flags & XFS_IFEXTENTS)
-				fa.fsx_nextents = ip->i_afp->if_bytes /
-							sizeof(xfs_bmbt_rec_t);
+				fa.fsx_nextents = xfs_iext_count(ip->i_afp);
 			else
 				fa.fsx_nextents = ip->i_d.di_anextents;
 		} else
 			fa.fsx_nextents = 0;
 	} else {
 		if (ip->i_df.if_flags & XFS_IFEXTENTS)
-			fa.fsx_nextents = ip->i_df.if_bytes /
-						sizeof(xfs_bmbt_rec_t);
+			fa.fsx_nextents = xfs_iext_count(&ip->i_df);
 		else
 			fa.fsx_nextents = ip->i_d.di_nextents;
 	}
@@ -930,16 +928,15 @@ xfs_ioc_fsgetxattr(
 	return 0;
 }
 
-STATIC void
-xfs_set_diflags(
+STATIC uint16_t
+xfs_flags2diflags(
 	struct xfs_inode	*ip,
 	unsigned int		xflags)
 {
-	unsigned int		di_flags;
-	uint64_t		di_flags2;
-
 	/* can't set PREALLOC this way, just preserve it */
-	di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+	uint16_t		di_flags =
+		(ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+
 	if (xflags & FS_XFLAG_IMMUTABLE)
 		di_flags |= XFS_DIFLAG_IMMUTABLE;
 	if (xflags & FS_XFLAG_APPEND)
@@ -969,19 +966,24 @@ xfs_set_diflags(
 		if (xflags & FS_XFLAG_EXTSIZE)
 			di_flags |= XFS_DIFLAG_EXTSIZE;
 	}
-	ip->i_d.di_flags = di_flags;
 
-	/* diflags2 only valid for v3 inodes. */
-	if (ip->i_d.di_version < 3)
-		return;
+	return di_flags;
+}
+
+STATIC uint64_t
+xfs_flags2diflags2(
+	struct xfs_inode	*ip,
+	unsigned int		xflags)
+{
+	uint64_t		di_flags2 =
+		(ip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK);
 
-	di_flags2 = (ip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK);
 	if (xflags & FS_XFLAG_DAX)
 		di_flags2 |= XFS_DIFLAG2_DAX;
 	if (xflags & FS_XFLAG_COWEXTSIZE)
 		di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
 
-	ip->i_d.di_flags2 = di_flags2;
+	return di_flags2;
 }
 
 STATIC void
@@ -1007,11 +1009,12 @@ xfs_diflags_to_linux(
 		inode->i_flags |= S_NOATIME;
 	else
 		inode->i_flags &= ~S_NOATIME;
+#if 0	/* disabled until the flag switching races are sorted out */
 	if (xflags & FS_XFLAG_DAX)
 		inode->i_flags |= S_DAX;
 	else
 		inode->i_flags &= ~S_DAX;
-
+#endif
 }
 
 static int
@@ -1021,6 +1024,7 @@ xfs_ioctl_setattr_xflags(
 	struct fsxattr		*fa)
 {
 	struct xfs_mount	*mp = ip->i_mount;
+	uint64_t		di_flags2;
 
 	/* Can't change realtime flag if any extents are allocated. */
 	if ((ip->i_d.di_nextents || ip->i_delayed_blks) &&
@@ -1051,7 +1055,14 @@ xfs_ioctl_setattr_xflags(
 	    !capable(CAP_LINUX_IMMUTABLE))
 		return -EPERM;
 
-	xfs_set_diflags(ip, fa->fsx_xflags);
+	/* diflags2 only valid for v3 inodes. */
+	di_flags2 = xfs_flags2diflags2(ip, fa->fsx_xflags);
+	if (di_flags2 && ip->i_d.di_version < 3)
+		return -EINVAL;
+
+	ip->i_d.di_flags = xfs_flags2diflags(ip, fa->fsx_xflags);
+	ip->i_d.di_flags2 = di_flags2;
+
 	xfs_diflags_to_linux(ip);
 	xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
@@ -1544,10 +1555,11 @@ xfs_ioc_getbmap(
 	unsigned int		cmd,
 	void			__user *arg)
 {
-	struct getbmapx		bmx;
+	struct getbmapx		bmx = { 0 };
 	int			error;
 
-	if (copy_from_user(&bmx, arg, sizeof(struct getbmapx)))
+	/* struct getbmap is a strict subset of struct getbmapx. */
+	if (copy_from_user(&bmx, arg, offsetof(struct getbmapx, bmv_iflags)))
 		return -EFAULT;
 
 	if (bmx.bmv_count < 2)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_iomap.c linux-libre-4.9.52-gnu/fs/xfs/xfs_iomap.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_iomap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_iomap.c	2017-09-27 08:40:05.000000000 -0400
@@ -395,11 +395,12 @@ xfs_iomap_prealloc_size(
 	struct xfs_inode	*ip,
 	loff_t			offset,
 	loff_t			count,
-	xfs_extnum_t		idx,
-	struct xfs_bmbt_irec	*prev)
+	xfs_extnum_t		idx)
 {
 	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
 	xfs_fileoff_t		offset_fsb = XFS_B_TO_FSBT(mp, offset);
+	struct xfs_bmbt_irec	prev;
 	int			shift = 0;
 	int64_t			freesp;
 	xfs_fsblock_t		qblocks;
@@ -419,8 +420,8 @@ xfs_iomap_prealloc_size(
 	 */
 	if ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ||
 	    XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_dalign) ||
-	    idx == 0 ||
-	    prev->br_startoff + prev->br_blockcount < offset_fsb)
+	    !xfs_iext_get_extent(ifp, idx - 1, &prev) ||
+	    prev.br_startoff + prev.br_blockcount < offset_fsb)
 		return mp->m_writeio_blocks;
 
 	/*
@@ -439,8 +440,8 @@ xfs_iomap_prealloc_size(
 	 * always extends to MAXEXTLEN rather than falling short due to things
 	 * like stripe unit/width alignment of real extents.
 	 */
-	if (prev->br_blockcount <= (MAXEXTLEN >> 1))
-		alloc_blocks = prev->br_blockcount << 1;
+	if (prev.br_blockcount <= (MAXEXTLEN >> 1))
+		alloc_blocks = prev.br_blockcount << 1;
 	else
 		alloc_blocks = XFS_B_TO_FSB(mp, offset);
 	if (!alloc_blocks)
@@ -535,11 +536,11 @@ xfs_file_iomap_begin_delay(
 	xfs_fileoff_t		offset_fsb = XFS_B_TO_FSBT(mp, offset);
 	xfs_fileoff_t		maxbytes_fsb =
 		XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
-	xfs_fileoff_t		end_fsb, orig_end_fsb;
+	xfs_fileoff_t		end_fsb;
 	int			error = 0, eof = 0;
 	struct xfs_bmbt_irec	got;
-	struct xfs_bmbt_irec	prev;
 	xfs_extnum_t		idx;
+	xfs_fsblock_t		prealloc_blocks = 0;
 
 	ASSERT(!XFS_IS_REALTIME_INODE(ip));
 	ASSERT(!xfs_get_extsz_hint(ip));
@@ -563,8 +564,7 @@ xfs_file_iomap_begin_delay(
 			goto out_unlock;
 	}
 
-	xfs_bmap_search_extents(ip, offset_fsb, XFS_DATA_FORK, &eof, &idx,
-			&got, &prev);
+	eof = !xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got);
 	if (!eof && got.br_startoff <= offset_fsb) {
 		if (xfs_is_reflink_inode(ip)) {
 			bool		shared;
@@ -595,35 +595,32 @@ xfs_file_iomap_begin_delay(
 	 * the lower level functions are updated.
 	 */
 	count = min_t(loff_t, count, 1024 * PAGE_SIZE);
-	end_fsb = orig_end_fsb =
-		min(XFS_B_TO_FSB(mp, offset + count), maxbytes_fsb);
+	end_fsb = min(XFS_B_TO_FSB(mp, offset + count), maxbytes_fsb);
 
 	if (eof) {
-		xfs_fsblock_t	prealloc_blocks;
-
-		prealloc_blocks =
-			xfs_iomap_prealloc_size(ip, offset, count, idx, &prev);
+		prealloc_blocks = xfs_iomap_prealloc_size(ip, offset, count, idx);
 		if (prealloc_blocks) {
 			xfs_extlen_t	align;
 			xfs_off_t	end_offset;
+			xfs_fileoff_t	p_end_fsb;
 
 			end_offset = XFS_WRITEIO_ALIGN(mp, offset + count - 1);
-			end_fsb = XFS_B_TO_FSBT(mp, end_offset) +
-				prealloc_blocks;
+			p_end_fsb = XFS_B_TO_FSBT(mp, end_offset) +
+					prealloc_blocks;
 
 			align = xfs_eof_alignment(ip, 0);
 			if (align)
-				end_fsb = roundup_64(end_fsb, align);
+				p_end_fsb = roundup_64(p_end_fsb, align);
 
-			end_fsb = min(end_fsb, maxbytes_fsb);
-			ASSERT(end_fsb > offset_fsb);
+			p_end_fsb = min(p_end_fsb, maxbytes_fsb);
+			ASSERT(p_end_fsb > offset_fsb);
+			prealloc_blocks = p_end_fsb - end_fsb;
 		}
 	}
 
 retry:
 	error = xfs_bmapi_reserve_delalloc(ip, XFS_DATA_FORK, offset_fsb,
-			end_fsb - offset_fsb, &got,
-			&prev, &idx, eof);
+			end_fsb - offset_fsb, prealloc_blocks, &got, &idx, eof);
 	switch (error) {
 	case 0:
 		break;
@@ -631,8 +628,8 @@ retry:
 	case -EDQUOT:
 		/* retry without any preallocation */
 		trace_xfs_delalloc_enospc(ip, offset, count);
-		if (end_fsb != orig_end_fsb) {
-			end_fsb = orig_end_fsb;
+		if (prealloc_blocks) {
+			prealloc_blocks = 0;
 			goto retry;
 		}
 		/*FALLTHRU*/
@@ -641,12 +638,10 @@ retry:
 	}
 
 	/*
-	 * Tag the inode as speculatively preallocated so we can reclaim this
-	 * space on demand, if necessary.
+	 * Flag newly allocated delalloc blocks with IOMAP_F_NEW so we punch
+	 * them out if the write happens to fail.
 	 */
-	if (end_fsb != orig_end_fsb)
-		xfs_inode_set_eofblocks_tag(ip);
-
+	iomap->flags = IOMAP_F_NEW;
 	trace_xfs_iomap_alloc(ip, offset, count, 0, &got);
 done:
 	if (isnullstartblock(got.br_startblock))
@@ -691,11 +686,11 @@ xfs_iomap_write_allocate(
 	xfs_trans_t	*tp;
 	int		nimaps;
 	int		error = 0;
-	int		flags = 0;
+	int		flags = XFS_BMAPI_DELALLOC;
 	int		nres;
 
 	if (whichfork == XFS_COW_FORK)
-		flags |= XFS_BMAPI_COWFORK;
+		flags |= XFS_BMAPI_COWFORK | XFS_BMAPI_PREALLOC;
 
 	/*
 	 * Make sure that the dquots are there.
@@ -1071,25 +1066,37 @@ xfs_file_iomap_end_delalloc(
 	struct xfs_inode	*ip,
 	loff_t			offset,
 	loff_t			length,
-	ssize_t			written)
+	ssize_t			written,
+	struct iomap		*iomap)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	xfs_fileoff_t		start_fsb;
 	xfs_fileoff_t		end_fsb;
 	int			error = 0;
 
-	start_fsb = XFS_B_TO_FSB(mp, offset + written);
+	/*
+	 * start_fsb refers to the first unused block after a short write. If
+	 * nothing was written, round offset down to point at the first block in
+	 * the range.
+	 */
+	if (unlikely(!written))
+		start_fsb = XFS_B_TO_FSBT(mp, offset);
+	else
+		start_fsb = XFS_B_TO_FSB(mp, offset + written);
 	end_fsb = XFS_B_TO_FSB(mp, offset + length);
 
 	/*
-	 * Trim back delalloc blocks if we didn't manage to write the whole
-	 * range reserved.
+	 * Trim delalloc blocks if they were allocated by this write and we
+	 * didn't manage to write the whole range.
 	 *
 	 * We don't need to care about racing delalloc as we hold i_mutex
 	 * across the reserve/allocate/unreserve calls. If there are delalloc
 	 * blocks in the range, they are ours.
 	 */
-	if (start_fsb < end_fsb) {
+	if ((iomap->flags & IOMAP_F_NEW) && start_fsb < end_fsb) {
+		truncate_pagecache_range(VFS_I(ip), XFS_FSB_TO_B(mp, start_fsb),
+					 XFS_FSB_TO_B(mp, end_fsb) - 1);
+
 		xfs_ilock(ip, XFS_ILOCK_EXCL);
 		error = xfs_bmap_punch_delalloc_range(ip, start_fsb,
 					       end_fsb - start_fsb);
@@ -1116,7 +1123,7 @@ xfs_file_iomap_end(
 {
 	if ((flags & IOMAP_WRITE) && iomap->type == IOMAP_DELALLOC)
 		return xfs_file_iomap_end_delalloc(XFS_I(inode), offset,
-				length, written);
+				length, written, iomap);
 	return 0;
 }
 
@@ -1144,10 +1151,10 @@ xfs_xattr_iomap_begin(
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
-	lockmode = xfs_ilock_data_map_shared(ip);
+	lockmode = xfs_ilock_attr_map_shared(ip);
 
 	/* if there are no attribute fork or extents, return ENOENT */
-	if (XFS_IFORK_Q(ip) || !ip->i_d.di_anextents) {
+	if (!XFS_IFORK_Q(ip) || !ip->i_d.di_anextents) {
 		error = -ENOENT;
 		goto out_unlock;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_iops.c linux-libre-4.9.52-gnu/fs/xfs/xfs_iops.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_iops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_iops.c	2017-09-27 08:40:05.000000000 -0400
@@ -98,12 +98,27 @@ xfs_init_security(
 static void
 xfs_dentry_to_name(
 	struct xfs_name	*namep,
+	struct dentry	*dentry)
+{
+	namep->name = dentry->d_name.name;
+	namep->len = dentry->d_name.len;
+	namep->type = XFS_DIR3_FT_UNKNOWN;
+}
+
+static int
+xfs_dentry_mode_to_name(
+	struct xfs_name	*namep,
 	struct dentry	*dentry,
 	int		mode)
 {
 	namep->name = dentry->d_name.name;
 	namep->len = dentry->d_name.len;
-	namep->type = xfs_mode_to_ftype[(mode & S_IFMT) >> S_SHIFT];
+	namep->type = xfs_mode_to_ftype(mode);
+
+	if (unlikely(namep->type == XFS_DIR3_FT_UNKNOWN))
+		return -EFSCORRUPTED;
+
+	return 0;
 }
 
 STATIC void
@@ -119,7 +134,7 @@ xfs_cleanup_inode(
 	 * xfs_init_security we must back out.
 	 * ENOSPC can hit here, among other things.
 	 */
-	xfs_dentry_to_name(&teardown, dentry, 0);
+	xfs_dentry_to_name(&teardown, dentry);
 
 	xfs_remove(XFS_I(dir), &teardown, XFS_I(inode));
 }
@@ -154,8 +169,12 @@ xfs_generic_create(
 	if (error)
 		return error;
 
+	/* Verify mode is valid also for tmpfile case */
+	error = xfs_dentry_mode_to_name(&name, dentry, mode);
+	if (unlikely(error))
+		goto out_free_acl;
+
 	if (!tmpfile) {
-		xfs_dentry_to_name(&name, dentry, mode);
 		error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip);
 	} else {
 		error = xfs_create_tmpfile(XFS_I(dir), dentry, mode, &ip);
@@ -171,12 +190,12 @@ xfs_generic_create(
 
 #ifdef CONFIG_XFS_POSIX_ACL
 	if (default_acl) {
-		error = xfs_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
+		error = __xfs_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
 		if (error)
 			goto out_cleanup_inode;
 	}
 	if (acl) {
-		error = xfs_set_acl(inode, acl, ACL_TYPE_ACCESS);
+		error = __xfs_set_acl(inode, acl, ACL_TYPE_ACCESS);
 		if (error)
 			goto out_cleanup_inode;
 	}
@@ -248,7 +267,7 @@ xfs_vn_lookup(
 	if (dentry->d_name.len >= MAXNAMELEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
-	xfs_dentry_to_name(&name, dentry, 0);
+	xfs_dentry_to_name(&name, dentry);
 	error = xfs_lookup(XFS_I(dir), &name, &cip, NULL);
 	if (unlikely(error)) {
 		if (unlikely(error != -ENOENT))
@@ -275,7 +294,7 @@ xfs_vn_ci_lookup(
 	if (dentry->d_name.len >= MAXNAMELEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
-	xfs_dentry_to_name(&xname, dentry, 0);
+	xfs_dentry_to_name(&xname, dentry);
 	error = xfs_lookup(XFS_I(dir), &xname, &ip, &ci_name);
 	if (unlikely(error)) {
 		if (unlikely(error != -ENOENT))
@@ -310,7 +329,9 @@ xfs_vn_link(
 	struct xfs_name	name;
 	int		error;
 
-	xfs_dentry_to_name(&name, dentry, inode->i_mode);
+	error = xfs_dentry_mode_to_name(&name, dentry, inode->i_mode);
+	if (unlikely(error))
+		return error;
 
 	error = xfs_link(XFS_I(dir), XFS_I(inode), &name);
 	if (unlikely(error))
@@ -329,7 +350,7 @@ xfs_vn_unlink(
 	struct xfs_name	name;
 	int		error;
 
-	xfs_dentry_to_name(&name, dentry, 0);
+	xfs_dentry_to_name(&name, dentry);
 
 	error = xfs_remove(XFS_I(dir), &name, XFS_I(d_inode(dentry)));
 	if (error)
@@ -359,7 +380,9 @@ xfs_vn_symlink(
 
 	mode = S_IFLNK |
 		(irix_symlink_mode ? 0777 & ~current_umask() : S_IRWXUGO);
-	xfs_dentry_to_name(&name, dentry, mode);
+	error = xfs_dentry_mode_to_name(&name, dentry, mode);
+	if (unlikely(error))
+		goto out;
 
 	error = xfs_symlink(XFS_I(dir), &name, symname, mode, &cip);
 	if (unlikely(error))
@@ -395,6 +418,7 @@ xfs_vn_rename(
 {
 	struct inode	*new_inode = d_inode(ndentry);
 	int		omode = 0;
+	int		error;
 	struct xfs_name	oname;
 	struct xfs_name	nname;
 
@@ -405,8 +429,14 @@ xfs_vn_rename(
 	if (flags & RENAME_EXCHANGE)
 		omode = d_inode(ndentry)->i_mode;
 
-	xfs_dentry_to_name(&oname, odentry, omode);
-	xfs_dentry_to_name(&nname, ndentry, d_inode(odentry)->i_mode);
+	error = xfs_dentry_mode_to_name(&oname, odentry, omode);
+	if (omode && unlikely(error))
+		return error;
+
+	error = xfs_dentry_mode_to_name(&nname, ndentry,
+					d_inode(odentry)->i_mode);
+	if (unlikely(error))
+		return error;
 
 	return xfs_rename(XFS_I(odir), &oname, XFS_I(d_inode(odentry)),
 			  XFS_I(ndir), &nname,
@@ -772,7 +802,7 @@ xfs_vn_setattr_nonsize(
  * Caution: The caller of this function is responsible for calling
  * setattr_prepare() or otherwise verifying the change is fine.
  */
-int
+STATIC int
 xfs_setattr_size(
 	struct xfs_inode	*ip,
 	struct iattr		*iattr)
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_itable.c linux-libre-4.9.52-gnu/fs/xfs/xfs_itable.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_itable.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_itable.c	2017-09-27 08:40:05.000000000 -0400
@@ -585,7 +585,7 @@ xfs_inumbers(
 		return error;
 
 	bcount = MIN(left, (int)(PAGE_SIZE / sizeof(*buffer)));
-	buffer = kmem_alloc(bcount * sizeof(*buffer), KM_SLEEP);
+	buffer = kmem_zalloc(bcount * sizeof(*buffer), KM_SLEEP);
 	do {
 		struct xfs_inobt_rec_incore	r;
 		int				stat;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_linux.h linux-libre-4.9.52-gnu/fs/xfs/xfs_linux.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_linux.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_linux.h	2017-09-27 08:40:05.000000000 -0400
@@ -330,11 +330,11 @@ static inline __uint64_t howmany_64(__ui
 }
 
 #define ASSERT_ALWAYS(expr)	\
-	(unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
+	(likely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
 
 #ifdef DEBUG
 #define ASSERT(expr)	\
-	(unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
+	(likely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
 
 #ifndef STATIC
 # define STATIC noinline
@@ -345,7 +345,7 @@ static inline __uint64_t howmany_64(__ui
 #ifdef XFS_WARN
 
 #define ASSERT(expr)	\
-	(unlikely(expr) ? (void)0 : asswarn(#expr, __FILE__, __LINE__))
+	(likely(expr) ? (void)0 : asswarn(#expr, __FILE__, __LINE__))
 
 #ifndef STATIC
 # define STATIC static noinline
@@ -363,7 +363,14 @@ static inline __uint64_t howmany_64(__ui
 #endif /* DEBUG */
 
 #ifdef CONFIG_XFS_RT
-#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
+
+/*
+ * make sure we ignore the inode flag if the filesystem doesn't have a
+ * configured realtime device.
+ */
+#define XFS_IS_REALTIME_INODE(ip)			\
+	(((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) &&	\
+	 (ip)->i_mount->m_rtdev_targp)
 #else
 #define XFS_IS_REALTIME_INODE(ip) (0)
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_log.c linux-libre-4.9.52-gnu/fs/xfs/xfs_log.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_log.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_log.c	2017-09-27 08:40:05.000000000 -0400
@@ -743,15 +743,45 @@ xfs_log_mount_finish(
 	struct xfs_mount	*mp)
 {
 	int	error = 0;
+	bool	readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
 
 	if (mp->m_flags & XFS_MOUNT_NORECOVERY) {
 		ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
 		return 0;
+	} else if (readonly) {
+		/* Allow unlinked processing to proceed */
+		mp->m_flags &= ~XFS_MOUNT_RDONLY;
 	}
 
+	/*
+	 * During the second phase of log recovery, we need iget and
+	 * iput to behave like they do for an active filesystem.
+	 * xfs_fs_drop_inode needs to be able to prevent the deletion
+	 * of inodes before we're done replaying log items on those
+	 * inodes.  Turn it off immediately after recovery finishes
+	 * so that we don't leak the quota inodes if subsequent mount
+	 * activities fail.
+	 *
+	 * We let all inodes involved in redo item processing end up on
+	 * the LRU instead of being evicted immediately so that if we do
+	 * something to an unlinked inode, the irele won't cause
+	 * premature truncation and freeing of the inode, which results
+	 * in log recovery failure.  We have to evict the unreferenced
+	 * lru inodes after clearing MS_ACTIVE because we don't
+	 * otherwise clean up the lru if there's a subsequent failure in
+	 * xfs_mountfs, which leads to us leaking the inodes if nothing
+	 * else (e.g. quotacheck) references the inodes before the
+	 * mount failure occurs.
+	 */
+	mp->m_super->s_flags |= MS_ACTIVE;
 	error = xlog_recover_finish(mp->m_log);
 	if (!error)
 		xfs_log_work_queue(mp);
+	mp->m_super->s_flags &= ~MS_ACTIVE;
+	evict_inodes(mp->m_super);
+
+	if (readonly)
+		mp->m_flags |= XFS_MOUNT_RDONLY;
 
 	return error;
 }
@@ -801,11 +831,14 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 	int		 error;
 
 	/*
-	 * Don't write out unmount record on read-only mounts.
+	 * Don't write out unmount record on norecovery mounts or ro devices.
 	 * Or, if we are doing a forced umount (typically because of IO errors).
 	 */
-	if (mp->m_flags & XFS_MOUNT_RDONLY)
+	if (mp->m_flags & XFS_MOUNT_NORECOVERY ||
+	    xfs_readonly_buftarg(log->l_mp->m_logdev_targp)) {
+		ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
 		return 0;
+	}
 
 	error = _xfs_log_force(mp, XFS_LOG_SYNC, NULL);
 	ASSERT(error || !(XLOG_FORCED_SHUTDOWN(log)));
@@ -1293,7 +1326,7 @@ void
 xfs_log_work_queue(
 	struct xfs_mount        *mp)
 {
-	queue_delayed_work(mp->m_log_workqueue, &mp->m_log->l_work,
+	queue_delayed_work(mp->m_sync_workqueue, &mp->m_log->l_work,
 				msecs_to_jiffies(xfs_syncd_centisecs * 10));
 }
 
@@ -3304,8 +3337,6 @@ maybe_sleep:
 		 */
 		if (iclog->ic_state & XLOG_STATE_IOERROR)
 			return -EIO;
-		if (log_flushed)
-			*log_flushed = 1;
 	} else {
 
 no_sleep:
@@ -3324,12 +3355,8 @@ xfs_log_force(
 	xfs_mount_t	*mp,
 	uint		flags)
 {
-	int	error;
-
 	trace_xfs_log_force(mp, 0, _RET_IP_);
-	error = _xfs_log_force(mp, flags, NULL);
-	if (error)
-		xfs_warn(mp, "%s: error %d returned.", __func__, error);
+	_xfs_log_force(mp, flags, NULL);
 }
 
 /*
@@ -3413,8 +3440,6 @@ try_again:
 
 				xlog_wait(&iclog->ic_prev->ic_write_wait,
 							&log->l_icloglock);
-				if (log_flushed)
-					*log_flushed = 1;
 				already_slept = 1;
 				goto try_again;
 			}
@@ -3448,9 +3473,6 @@ try_again:
 			 */
 			if (iclog->ic_state & XLOG_STATE_IOERROR)
 				return -EIO;
-
-			if (log_flushed)
-				*log_flushed = 1;
 		} else {		/* just return */
 			spin_unlock(&log->l_icloglock);
 		}
@@ -3473,12 +3495,8 @@ xfs_log_force_lsn(
 	xfs_lsn_t	lsn,
 	uint		flags)
 {
-	int	error;
-
 	trace_xfs_log_force(mp, lsn, _RET_IP_);
-	error = _xfs_log_force_lsn(mp, lsn, flags, NULL);
-	if (error)
-		xfs_warn(mp, "%s: error %d returned.", __func__, error);
+	_xfs_log_force_lsn(mp, lsn, flags, NULL);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_log_recover.c linux-libre-4.9.52-gnu/fs/xfs/xfs_log_recover.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_log_recover.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_log_recover.c	2017-09-27 08:40:05.000000000 -0400
@@ -1029,61 +1029,106 @@ out_error:
 }
 
 /*
- * Check the log tail for torn writes. This is required when torn writes are
- * detected at the head and the head had to be walked back to a previous record.
- * The tail of the previous record must now be verified to ensure the torn
- * writes didn't corrupt the previous tail.
+ * Calculate distance from head to tail (i.e., unused space in the log).
+ */
+static inline int
+xlog_tail_distance(
+	struct xlog	*log,
+	xfs_daddr_t	head_blk,
+	xfs_daddr_t	tail_blk)
+{
+	if (head_blk < tail_blk)
+		return tail_blk - head_blk;
+
+	return tail_blk + (log->l_logBBsize - head_blk);
+}
+
+/*
+ * Verify the log tail. This is particularly important when torn or incomplete
+ * writes have been detected near the front of the log and the head has been
+ * walked back accordingly.
  *
- * Return an error if CRC verification fails as recovery cannot proceed.
+ * We also have to handle the case where the tail was pinned and the head
+ * blocked behind the tail right before a crash. If the tail had been pushed
+ * immediately prior to the crash and the subsequent checkpoint was only
+ * partially written, it's possible it overwrote the last referenced tail in the
+ * log with garbage. This is not a coherency problem because the tail must have
+ * been pushed before it can be overwritten, but appears as log corruption to
+ * recovery because we have no way to know the tail was updated if the
+ * subsequent checkpoint didn't write successfully.
+ *
+ * Therefore, CRC check the log from tail to head. If a failure occurs and the
+ * offending record is within max iclog bufs from the head, walk the tail
+ * forward and retry until a valid tail is found or corruption is detected out
+ * of the range of a possible overwrite.
  */
 STATIC int
 xlog_verify_tail(
 	struct xlog		*log,
 	xfs_daddr_t		head_blk,
-	xfs_daddr_t		tail_blk)
+	xfs_daddr_t		*tail_blk,
+	int			hsize)
 {
 	struct xlog_rec_header	*thead;
 	struct xfs_buf		*bp;
 	xfs_daddr_t		first_bad;
-	int			count;
 	int			error = 0;
 	bool			wrapped;
-	xfs_daddr_t		tmp_head;
+	xfs_daddr_t		tmp_tail;
+	xfs_daddr_t		orig_tail = *tail_blk;
 
 	bp = xlog_get_bp(log, 1);
 	if (!bp)
 		return -ENOMEM;
 
 	/*
-	 * Seek XLOG_MAX_ICLOGS + 1 records past the current tail record to get
-	 * a temporary head block that points after the last possible
-	 * concurrently written record of the tail.
+	 * Make sure the tail points to a record (returns positive count on
+	 * success).
 	 */
-	count = xlog_seek_logrec_hdr(log, head_blk, tail_blk,
-				     XLOG_MAX_ICLOGS + 1, bp, &tmp_head, &thead,
-				     &wrapped);
-	if (count < 0) {
-		error = count;
+	error = xlog_seek_logrec_hdr(log, head_blk, *tail_blk, 1, bp,
+			&tmp_tail, &thead, &wrapped);
+	if (error < 0)
 		goto out;
-	}
-
-	/*
-	 * If the call above didn't find XLOG_MAX_ICLOGS + 1 records, we ran
-	 * into the actual log head. tmp_head points to the start of the record
-	 * so update it to the actual head block.
-	 */
-	if (count < XLOG_MAX_ICLOGS + 1)
-		tmp_head = head_blk;
+	if (*tail_blk != tmp_tail)
+		*tail_blk = tmp_tail;
 
 	/*
-	 * We now have a tail and temporary head block that covers at least
-	 * XLOG_MAX_ICLOGS records from the tail. We need to verify that these
-	 * records were completely written. Run a CRC verification pass from
-	 * tail to head and return the result.
+	 * Run a CRC check from the tail to the head. We can't just check
+	 * MAX_ICLOGS records past the tail because the tail may point to stale
+	 * blocks cleared during the search for the head/tail. These blocks are
+	 * overwritten with zero-length records and thus record count is not a
+	 * reliable indicator of the iclog state before a crash.
 	 */
-	error = xlog_do_recovery_pass(log, tmp_head, tail_blk,
+	first_bad = 0;
+	error = xlog_do_recovery_pass(log, head_blk, *tail_blk,
 				      XLOG_RECOVER_CRCPASS, &first_bad);
+	while ((error == -EFSBADCRC || error == -EFSCORRUPTED) && first_bad) {
+		int	tail_distance;
+
+		/*
+		 * Is corruption within range of the head? If so, retry from
+		 * the next record. Otherwise return an error.
+		 */
+		tail_distance = xlog_tail_distance(log, head_blk, first_bad);
+		if (tail_distance > BTOBB(XLOG_MAX_ICLOGS * hsize))
+			break;
+
+		/* skip to the next record; returns positive count on success */
+		error = xlog_seek_logrec_hdr(log, head_blk, first_bad, 2, bp,
+				&tmp_tail, &thead, &wrapped);
+		if (error < 0)
+			goto out;
+
+		*tail_blk = tmp_tail;
+		first_bad = 0;
+		error = xlog_do_recovery_pass(log, head_blk, *tail_blk,
+					      XLOG_RECOVER_CRCPASS, &first_bad);
+	}
 
+	if (!error && *tail_blk != orig_tail)
+		xfs_warn(log->l_mp,
+		"Tail block (0x%llx) overwrite detected. Updated to 0x%llx",
+			 orig_tail, *tail_blk);
 out:
 	xlog_put_bp(bp);
 	return error;
@@ -1143,7 +1188,7 @@ xlog_verify_head(
 	 */
 	error = xlog_do_recovery_pass(log, *head_blk, tmp_rhead_blk,
 				      XLOG_RECOVER_CRCPASS, &first_bad);
-	if (error == -EFSBADCRC) {
+	if ((error == -EFSBADCRC || error == -EFSCORRUPTED) && first_bad) {
 		/*
 		 * We've hit a potential torn write. Reset the error and warn
 		 * about it.
@@ -1183,31 +1228,12 @@ xlog_verify_head(
 			ASSERT(0);
 			return 0;
 		}
-
-		/*
-		 * Now verify the tail based on the updated head. This is
-		 * required because the torn writes trimmed from the head could
-		 * have been written over the tail of a previous record. Return
-		 * any errors since recovery cannot proceed if the tail is
-		 * corrupt.
-		 *
-		 * XXX: This leaves a gap in truly robust protection from torn
-		 * writes in the log. If the head is behind the tail, the tail
-		 * pushes forward to create some space and then a crash occurs
-		 * causing the writes into the previous record's tail region to
-		 * tear, log recovery isn't able to recover.
-		 *
-		 * How likely is this to occur? If possible, can we do something
-		 * more intelligent here? Is it safe to push the tail forward if
-		 * we can determine that the tail is within the range of the
-		 * torn write (e.g., the kernel can only overwrite the tail if
-		 * it has actually been pushed forward)? Alternatively, could we
-		 * somehow prevent this condition at runtime?
-		 */
-		error = xlog_verify_tail(log, *head_blk, *tail_blk);
 	}
+	if (error)
+		return error;
 
-	return error;
+	return xlog_verify_tail(log, *head_blk, tail_blk,
+				be32_to_cpu((*rhead)->h_size));
 }
 
 /*
@@ -4152,7 +4178,7 @@ xlog_recover_commit_trans(
 
 	#define XLOG_RECOVER_COMMIT_QUEUE_MAX 100
 
-	hlist_del(&trans->r_list);
+	hlist_del_init(&trans->r_list);
 
 	error = xlog_recover_reorder_trans(log, trans, pass);
 	if (error)
@@ -4354,6 +4380,8 @@ xlog_recover_free_trans(
 	xlog_recover_item_t	*item, *n;
 	int			i;
 
+	hlist_del_init(&trans->r_list);
+
 	list_for_each_entry_safe(item, n, &trans->r_itemq, ri_list) {
 		/* Free the regions in the item. */
 		list_del(&item->ri_list);
@@ -4799,12 +4827,16 @@ xlog_recover_process_intents(
 	int			error = 0;
 	struct xfs_ail_cursor	cur;
 	struct xfs_ail		*ailp;
+#if defined(DEBUG) || defined(XFS_WARN)
 	xfs_lsn_t		last_lsn;
+#endif
 
 	ailp = log->l_ailp;
 	spin_lock(&ailp->xa_lock);
 	lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
+#if defined(DEBUG) || defined(XFS_WARN)
 	last_lsn = xlog_assign_lsn(log->l_curr_cycle, log->l_curr_block);
+#endif
 	while (lip != NULL) {
 		/*
 		 * We're done when we see something other than an intent.
@@ -5214,7 +5246,7 @@ xlog_do_recovery_pass(
 	xfs_daddr_t		*first_bad)	/* out: first bad log rec */
 {
 	xlog_rec_header_t	*rhead;
-	xfs_daddr_t		blk_no;
+	xfs_daddr_t		blk_no, rblk_no;
 	xfs_daddr_t		rhead_blk;
 	char			*offset;
 	xfs_buf_t		*hbp, *dbp;
@@ -5222,11 +5254,15 @@ xlog_do_recovery_pass(
 	int			error2 = 0;
 	int			bblks, split_bblks;
 	int			hblks, split_hblks, wrapped_hblks;
+	int			i;
 	struct hlist_head	rhash[XLOG_RHASH_SIZE];
 	LIST_HEAD		(buffer_list);
 
 	ASSERT(head_blk != tail_blk);
-	rhead_blk = 0;
+	blk_no = rhead_blk = tail_blk;
+
+	for (i = 0; i < XLOG_RHASH_SIZE; i++)
+		INIT_HLIST_HEAD(&rhash[i]);
 
 	/*
 	 * Read the header of the tail block and get the iclog buffer size from
@@ -5301,7 +5337,6 @@ xlog_do_recovery_pass(
 	}
 
 	memset(rhash, 0, sizeof(rhash));
-	blk_no = rhead_blk = tail_blk;
 	if (tail_blk > head_blk) {
 		/*
 		 * Perform recovery around the end of the physical log.
@@ -5363,9 +5398,19 @@ xlog_do_recovery_pass(
 			bblks = (int)BTOBB(be32_to_cpu(rhead->h_len));
 			blk_no += hblks;
 
-			/* Read in data for log record */
-			if (blk_no + bblks <= log->l_logBBsize) {
-				error = xlog_bread(log, blk_no, bblks, dbp,
+			/*
+			 * Read the log record data in multiple reads if it
+			 * wraps around the end of the log. Note that if the
+			 * header already wrapped, blk_no could point past the
+			 * end of the log. The record data is contiguous in
+			 * that case.
+			 */
+			if (blk_no + bblks <= log->l_logBBsize ||
+			    blk_no >= log->l_logBBsize) {
+				/* mod blk_no in case the header wrapped and
+				 * pushed it beyond the end of the log */
+				rblk_no = do_mod(blk_no, log->l_logBBsize);
+				error = xlog_bread(log, rblk_no, bblks, dbp,
 						   &offset);
 				if (error)
 					goto bread_err2;
@@ -5464,6 +5509,19 @@ xlog_do_recovery_pass(
 	if (error && first_bad)
 		*first_bad = rhead_blk;
 
+	/*
+	 * Transactions are freed at commit time but transactions without commit
+	 * records on disk are never committed. Free any that may be left in the
+	 * hash table.
+	 */
+	for (i = 0; i < XLOG_RHASH_SIZE; i++) {
+		struct hlist_node	*tmp;
+		struct xlog_recover	*trans;
+
+		hlist_for_each_entry_safe(trans, tmp, &rhash[i], r_list)
+			xlog_recover_free_trans(trans);
+	}
+
 	return error ? error : error2;
 }
 
@@ -5542,6 +5600,8 @@ xlog_do_recover(
 	xfs_buf_t	*bp;
 	xfs_sb_t	*sbp;
 
+	trace_xfs_log_recover(log, head_blk, tail_blk);
+
 	/*
 	 * First replay the images in the log.
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_mount.c linux-libre-4.9.52-gnu/fs/xfs/xfs_mount.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_mount.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_mount.c	2017-09-27 08:40:05.000000000 -0400
@@ -502,8 +502,7 @@ STATIC void
 xfs_set_inoalignment(xfs_mount_t *mp)
 {
 	if (xfs_sb_version_hasalign(&mp->m_sb) &&
-	    mp->m_sb.sb_inoalignmt >=
-	    XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
+		mp->m_sb.sb_inoalignmt >= xfs_icluster_size_fsb(mp))
 		mp->m_inoalign_mask = mp->m_sb.sb_inoalignmt - 1;
 	else
 		mp->m_inoalign_mask = 0;
@@ -926,15 +925,6 @@ xfs_mountfs(
 	}
 
 	/*
-	 * During the second phase of log recovery, we need iget and
-	 * iput to behave like they do for an active filesystem.
-	 * xfs_fs_drop_inode needs to be able to prevent the deletion
-	 * of inodes before we're done replaying log items on those
-	 * inodes.
-	 */
-	mp->m_super->s_flags |= MS_ACTIVE;
-
-	/*
 	 * Finish recovering the file system.  This part needed to be delayed
 	 * until after the root and real-time bitmap inodes were consistently
 	 * read in.
@@ -1009,12 +999,13 @@ xfs_mountfs(
  out_quota:
 	xfs_qm_unmount_quotas(mp);
  out_rtunmount:
-	mp->m_super->s_flags &= ~MS_ACTIVE;
 	xfs_rtunmount_inodes(mp);
  out_rele_rip:
 	IRELE(rip);
 	cancel_delayed_work_sync(&mp->m_reclaim_work);
 	xfs_reclaim_inodes(mp, SYNC_WAIT);
+	/* Clean out dquots that might be in memory after quotacheck. */
+	xfs_qm_unmount(mp);
  out_log_dealloc:
 	mp->m_flags |= XFS_MOUNT_UNMOUNTING;
 	xfs_log_mount_cancel(mp);
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_mount.h linux-libre-4.9.52-gnu/fs/xfs/xfs_mount.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_mount.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_mount.h	2017-09-27 08:40:05.000000000 -0400
@@ -140,6 +140,7 @@ typedef struct xfs_mount {
 	int			m_fixedfsid[2];	/* unchanged for life of FS */
 	uint			m_dmevmask;	/* DMI events for this FS */
 	__uint64_t		m_flags;	/* global mount flags */
+	bool			m_inotbt_nores; /* no per-AG finobt resv. */
 	int			m_ialloc_inos;	/* inodes in inode allocation */
 	int			m_ialloc_blks;	/* blocks in inode allocation */
 	int			m_ialloc_min_blks;/* min blocks in sparse inode
@@ -182,6 +183,7 @@ typedef struct xfs_mount {
 	struct workqueue_struct	*m_reclaim_workqueue;
 	struct workqueue_struct	*m_log_workqueue;
 	struct workqueue_struct *m_eofblocks_workqueue;
+	struct workqueue_struct	*m_sync_workqueue;
 
 	/*
 	 * Generation of the filesysyem layout.  This is incremented by each
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_qm.c linux-libre-4.9.52-gnu/fs/xfs/xfs_qm.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_qm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_qm.c	2017-09-27 08:40:05.000000000 -0400
@@ -111,6 +111,9 @@ restart:
 			skipped = 0;
 			break;
 		}
+		/* we're done if id overflows back to zero */
+		if (!next_index)
+			break;
 	}
 
 	if (skipped) {
@@ -1135,7 +1138,7 @@ xfs_qm_get_rtblks(
 			return error;
 	}
 	rtblks = 0;
-	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
+	nextents = xfs_iext_count(ifp);
 	for (idx = 0; idx < nextents; idx++)
 		rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx));
 	*O_rtblks = (xfs_qcnt_t)rtblks;
@@ -1177,7 +1180,8 @@ xfs_qm_dqusage_adjust(
 	 * the case in all other instances. It's OK that we do this because
 	 * quotacheck is done only at mount time.
 	 */
-	error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip);
+	error = xfs_iget(mp, NULL, ino, XFS_IGET_DONTCACHE, XFS_ILOCK_EXCL,
+			 &ip);
 	if (error) {
 		*res = BULKSTAT_RV_NOTHING;
 		return error;
@@ -1246,6 +1250,7 @@ xfs_qm_flush_one(
 	struct xfs_dquot	*dqp,
 	void			*data)
 {
+	struct xfs_mount	*mp = dqp->q_mount;
 	struct list_head	*buffer_list = data;
 	struct xfs_buf		*bp = NULL;
 	int			error = 0;
@@ -1256,7 +1261,32 @@ xfs_qm_flush_one(
 	if (!XFS_DQ_IS_DIRTY(dqp))
 		goto out_unlock;
 
-	xfs_dqflock(dqp);
+	/*
+	 * The only way the dquot is already flush locked by the time quotacheck
+	 * gets here is if reclaim flushed it before the dqadjust walk dirtied
+	 * it for the final time. Quotacheck collects all dquot bufs in the
+	 * local delwri queue before dquots are dirtied, so reclaim can't have
+	 * possibly queued it for I/O. The only way out is to push the buffer to
+	 * cycle the flush lock.
+	 */
+	if (!xfs_dqflock_nowait(dqp)) {
+		/* buf is pinned in-core by delwri list */
+		DEFINE_SINGLE_BUF_MAP(map, dqp->q_blkno,
+				      mp->m_quotainfo->qi_dqchunklen);
+		bp = _xfs_buf_find(mp->m_ddev_targp, &map, 1, 0, NULL);
+		if (!bp) {
+			error = -EINVAL;
+			goto out_unlock;
+		}
+		xfs_buf_unlock(bp);
+
+		xfs_buf_delwri_pushbuf(bp, buffer_list);
+		xfs_buf_rele(bp);
+
+		error = -EAGAIN;
+		goto out_unlock;
+	}
+
 	error = xfs_qm_dqflush(dqp, &bp);
 	if (error)
 		goto out_unlock;
@@ -1383,12 +1413,7 @@ xfs_qm_quotacheck(
 	mp->m_qflags |= flags;
 
  error_return:
-	while (!list_empty(&buffer_list)) {
-		struct xfs_buf *bp =
-			list_first_entry(&buffer_list, struct xfs_buf, b_list);
-		list_del_init(&bp->b_list);
-		xfs_buf_relse(bp);
-	}
+	xfs_buf_delwri_cancel(&buffer_list);
 
 	if (error) {
 		xfs_warn(mp,
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_qm_syscalls.c linux-libre-4.9.52-gnu/fs/xfs/xfs_qm_syscalls.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_qm_syscalls.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_qm_syscalls.c	2017-09-27 08:40:05.000000000 -0400
@@ -759,5 +759,6 @@ xfs_qm_dqrele_all_inodes(
 	uint		 flags)
 {
 	ASSERT(mp->m_quotainfo);
-	xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, NULL);
+	xfs_inode_ag_iterator_flags(mp, xfs_dqrele_inode, flags, NULL,
+				    XFS_AGITER_INEW_WAIT);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_refcount_item.c linux-libre-4.9.52-gnu/fs/xfs/xfs_refcount_item.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_refcount_item.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_refcount_item.c	2017-09-27 08:40:05.000000000 -0400
@@ -526,13 +526,14 @@ xfs_cui_recover(
 	xfs_refcount_finish_one_cleanup(tp, rcur, error);
 	error = xfs_defer_finish(&tp, &dfops, NULL);
 	if (error)
-		goto abort_error;
+		goto abort_defer;
 	set_bit(XFS_CUI_RECOVERED, &cuip->cui_flags);
 	error = xfs_trans_commit(tp);
 	return error;
 
 abort_error:
 	xfs_refcount_finish_one_cleanup(tp, rcur, error);
+abort_defer:
 	xfs_defer_cancel(&dfops);
 	xfs_trans_cancel(tp);
 	return error;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_reflink.c linux-libre-4.9.52-gnu/fs/xfs/xfs_reflink.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_reflink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_reflink.c	2017-09-27 08:40:05.000000000 -0400
@@ -82,11 +82,22 @@
  * mappings are a reservation against the free space in the filesystem;
  * adjacent mappings can also be combined into fewer larger mappings.
  *
+ * As an optimization, the CoW extent size hint (cowextsz) creates
+ * outsized aligned delalloc reservations in the hope of landing out of
+ * order nearby CoW writes in a single extent on disk, thereby reducing
+ * fragmentation and improving future performance.
+ *
+ * D: --RRRRRRSSSRRRRRRRR--- (data fork)
+ * C: ------DDDDDDD--------- (CoW fork)
+ *
  * When dirty pages are being written out (typically in writepage), the
- * delalloc reservations are converted into real mappings by allocating
- * blocks and replacing the delalloc mapping with real ones.  A delalloc
- * mapping can be replaced by several real ones if the free space is
- * fragmented.
+ * delalloc reservations are converted into unwritten mappings by
+ * allocating blocks and replacing the delalloc mapping with real ones.
+ * A delalloc mapping can be replaced by several unwritten ones if the
+ * free space is fragmented.
+ *
+ * D: --RRRRRRSSSRRRRRRRR---
+ * C: ------UUUUUUU---------
  *
  * We want to adapt the delalloc mechanism for copy-on-write, since the
  * write paths are similar.  The first two steps (creating the reservation
@@ -101,13 +112,29 @@
  * Block-aligned directio writes will use the same mechanism as buffered
  * writes.
  *
+ * Just prior to submitting the actual disk write requests, we convert
+ * the extents representing the range of the file actually being written
+ * (as opposed to extra pieces created for the cowextsize hint) to real
+ * extents.  This will become important in the next step:
+ *
+ * D: --RRRRRRSSSRRRRRRRR---
+ * C: ------UUrrUUU---------
+ *
  * CoW remapping must be done after the data block write completes,
  * because we don't want to destroy the old data fork map until we're sure
  * the new block has been written.  Since the new mappings are kept in a
  * separate fork, we can simply iterate these mappings to find the ones
  * that cover the file blocks that we just CoW'd.  For each extent, simply
  * unmap the corresponding range in the data fork, map the new range into
- * the data fork, and remove the extent from the CoW fork.
+ * the data fork, and remove the extent from the CoW fork.  Because of
+ * the presence of the cowextsize hint, however, we must be careful
+ * only to remap the blocks that we've actually written out --  we must
+ * never remap delalloc reservations nor CoW staging blocks that have
+ * yet to be written.  This corresponds exactly to the real extents in
+ * the CoW fork:
+ *
+ * D: --RRRRRRrrSRRRRRRRR---
+ * C: ------UU--UUU---------
  *
  * Since the remapping operation can be applied to an arbitrary file
  * range, we record the need for the remap step as a flag in the ioend
@@ -142,6 +169,8 @@ xfs_reflink_find_shared(
 	error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agbp);
 	if (error)
 		return error;
+	if (!agbp)
+		return -ENOMEM;
 
 	cur = xfs_refcountbt_init_cursor(mp, NULL, agbp, agno, NULL);
 
@@ -243,12 +272,11 @@ xfs_reflink_reserve_cow(
 	struct xfs_bmbt_irec	*imap,
 	bool			*shared)
 {
-	struct xfs_bmbt_irec	got, prev;
-	xfs_fileoff_t		end_fsb, orig_end_fsb;
-	int			eof = 0, error = 0;
-	bool			trimmed;
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
+	struct xfs_bmbt_irec	got;
+	int			error = 0;
+	bool			eof = false, trimmed;
 	xfs_extnum_t		idx;
-	xfs_extlen_t		align;
 
 	/*
 	 * Search the COW fork extent list first.  This serves two purposes:
@@ -258,8 +286,9 @@ xfs_reflink_reserve_cow(
 	 * extent list is generally faster than going out to the shared extent
 	 * tree.
 	 */
-	xfs_bmap_search_extents(ip, imap->br_startoff, XFS_COW_FORK, &eof, &idx,
-			&got, &prev);
+
+	if (!xfs_iext_lookup_extent(ip, ifp, imap->br_startoff, &idx, &got))
+		eof = true;
 	if (!eof && got.br_startoff <= imap->br_startoff) {
 		trace_xfs_reflink_cow_found(ip, imap);
 		xfs_trim_extent(imap, got.br_startoff, got.br_blockcount);
@@ -285,38 +314,76 @@ xfs_reflink_reserve_cow(
 	if (error)
 		return error;
 
-	end_fsb = orig_end_fsb = imap->br_startoff + imap->br_blockcount;
-
-	align = xfs_eof_alignment(ip, xfs_get_cowextsz_hint(ip));
-	if (align)
-		end_fsb = roundup_64(end_fsb, align);
-
-retry:
 	error = xfs_bmapi_reserve_delalloc(ip, XFS_COW_FORK, imap->br_startoff,
-			end_fsb - imap->br_startoff, &got, &prev, &idx, eof);
-	switch (error) {
-	case 0:
-		break;
-	case -ENOSPC:
-	case -EDQUOT:
-		/* retry without any preallocation */
+			imap->br_blockcount, 0, &got, &idx, eof);
+	if (error == -ENOSPC || error == -EDQUOT)
 		trace_xfs_reflink_cow_enospc(ip, imap);
-		if (end_fsb != orig_end_fsb) {
-			end_fsb = orig_end_fsb;
-			goto retry;
-		}
-		/*FALLTHRU*/
-	default:
+	if (error)
 		return error;
-	}
-
-	if (end_fsb != orig_end_fsb)
-		xfs_inode_set_cowblocks_tag(ip);
 
 	trace_xfs_reflink_cow_alloc(ip, &got);
 	return 0;
 }
 
+/* Convert part of an unwritten CoW extent to a real one. */
+STATIC int
+xfs_reflink_convert_cow_extent(
+	struct xfs_inode		*ip,
+	struct xfs_bmbt_irec		*imap,
+	xfs_fileoff_t			offset_fsb,
+	xfs_filblks_t			count_fsb,
+	struct xfs_defer_ops		*dfops)
+{
+	struct xfs_bmbt_irec		irec = *imap;
+	xfs_fsblock_t			first_block = NULLFSBLOCK;
+	int				nimaps = 1;
+
+	if (imap->br_state == XFS_EXT_NORM)
+		return 0;
+
+	xfs_trim_extent(&irec, offset_fsb, count_fsb);
+	trace_xfs_reflink_convert_cow(ip, &irec);
+	if (irec.br_blockcount == 0)
+		return 0;
+	return xfs_bmapi_write(NULL, ip, irec.br_startoff, irec.br_blockcount,
+			XFS_BMAPI_COWFORK | XFS_BMAPI_CONVERT, &first_block,
+			0, &irec, &nimaps, dfops);
+}
+
+/* Convert all of the unwritten CoW extents in a file's range to real ones. */
+int
+xfs_reflink_convert_cow(
+	struct xfs_inode	*ip,
+	xfs_off_t		offset,
+	xfs_off_t		count)
+{
+	struct xfs_bmbt_irec	got;
+	struct xfs_defer_ops	dfops;
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
+	xfs_fileoff_t		offset_fsb = XFS_B_TO_FSBT(mp, offset);
+	xfs_fileoff_t		end_fsb = XFS_B_TO_FSB(mp, offset + count);
+	xfs_extnum_t		idx;
+	bool			found;
+	int			error = 0;
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+	/* Convert all the extents to real from unwritten. */
+	for (found = xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got);
+	     found && got.br_startoff < end_fsb;
+	     found = xfs_iext_get_extent(ifp, ++idx, &got)) {
+		error = xfs_reflink_convert_cow_extent(ip, &got, offset_fsb,
+				end_fsb - offset_fsb, &dfops);
+		if (error)
+			break;
+	}
+
+	/* Finish up. */
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	return error;
+}
+
 /* Allocate all CoW reservations covering a range of blocks in a file. */
 static int
 __xfs_reflink_allocate_cow(
@@ -349,6 +416,7 @@ __xfs_reflink_allocate_cow(
 		goto out_unlock;
 	ASSERT(nimaps == 1);
 
+	/* Make sure there's a CoW reservation for it. */
 	error = xfs_reflink_reserve_cow(ip, &imap, &shared);
 	if (error)
 		goto out_trans_cancel;
@@ -358,14 +426,16 @@ __xfs_reflink_allocate_cow(
 		goto out_trans_cancel;
 	}
 
+	/* Allocate the entire reservation as unwritten blocks. */
 	xfs_trans_ijoin(tp, ip, 0);
 	error = xfs_bmapi_write(tp, ip, imap.br_startoff, imap.br_blockcount,
-			XFS_BMAPI_COWFORK, &first_block,
+			XFS_BMAPI_COWFORK | XFS_BMAPI_PREALLOC, &first_block,
 			XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK),
 			&imap, &nimaps, &dfops);
 	if (error)
 		goto out_trans_cancel;
 
+	/* Finish up. */
 	error = xfs_defer_finish(&tp, &dfops, NULL);
 	if (error)
 		goto out_trans_cancel;
@@ -410,11 +480,12 @@ xfs_reflink_allocate_cow_range(
 		if (error) {
 			trace_xfs_reflink_allocate_cow_range_error(ip, error,
 					_RET_IP_);
-			break;
+			return error;
 		}
 	}
 
-	return error;
+	/* Convert the CoW extents to regular. */
+	return xfs_reflink_convert_cow(ip, offset, count);
 }
 
 /*
@@ -486,7 +557,7 @@ xfs_reflink_trim_irec_to_next_cow(
 	/* This is the extent before; try sliding up one. */
 	if (irec.br_startoff < offset_fsb) {
 		idx++;
-		if (idx >= ifp->if_bytes / sizeof(xfs_bmbt_rec_t))
+		if (idx >= xfs_iext_count(ifp))
 			return 0;
 		gotp = xfs_iext_get_ext(ifp, idx);
 		xfs_bmbt_get_all(gotp, &irec);
@@ -502,14 +573,18 @@ xfs_reflink_trim_irec_to_next_cow(
 }
 
 /*
- * Cancel all pending CoW reservations for some block range of an inode.
+ * Cancel CoW reservations for some block range of an inode.
+ *
+ * If cancel_real is true this function cancels all COW fork extents for the
+ * inode; if cancel_real is false, real extents are not cleared.
  */
 int
 xfs_reflink_cancel_cow_blocks(
 	struct xfs_inode		*ip,
 	struct xfs_trans		**tpp,
 	xfs_fileoff_t			offset_fsb,
-	xfs_fileoff_t			end_fsb)
+	xfs_fileoff_t			end_fsb,
+	bool				cancel_real)
 {
 	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
 	struct xfs_bmbt_irec		got, prev, del;
@@ -536,7 +611,7 @@ xfs_reflink_cancel_cow_blocks(
 					&idx, &got, &del);
 			if (error)
 				break;
-		} else {
+		} else if (del.br_state == XFS_EXT_UNWRITTEN || cancel_real) {
 			xfs_trans_ijoin(*tpp, ip, 0);
 			xfs_defer_init(&dfops, &firstfsb);
 
@@ -566,7 +641,7 @@ xfs_reflink_cancel_cow_blocks(
 			xfs_bmap_del_extent_cow(ip, &idx, &got, &del);
 		}
 
-		if (++idx >= ifp->if_bytes / sizeof(struct xfs_bmbt_rec))
+		if (++idx >= xfs_iext_count(ifp))
 			break;
 		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &got);
 	}
@@ -579,13 +654,17 @@ xfs_reflink_cancel_cow_blocks(
 }
 
 /*
- * Cancel all pending CoW reservations for some byte range of an inode.
+ * Cancel CoW reservations for some byte range of an inode.
+ *
+ * If cancel_real is true this function cancels all COW fork extents for the
+ * inode; if cancel_real is false, real extents are not cleared.
  */
 int
 xfs_reflink_cancel_cow_range(
 	struct xfs_inode	*ip,
 	xfs_off_t		offset,
-	xfs_off_t		count)
+	xfs_off_t		count,
+	bool			cancel_real)
 {
 	struct xfs_trans	*tp;
 	xfs_fileoff_t		offset_fsb;
@@ -611,7 +690,8 @@ xfs_reflink_cancel_cow_range(
 	xfs_trans_ijoin(tp, ip, 0);
 
 	/* Scrape out the old CoW reservations */
-	error = xfs_reflink_cancel_cow_blocks(ip, &tp, offset_fsb, end_fsb);
+	error = xfs_reflink_cancel_cow_blocks(ip, &tp, offset_fsb, end_fsb,
+			cancel_real);
 	if (error)
 		goto out_cancel;
 
@@ -658,8 +738,22 @@ xfs_reflink_end_cow(
 	offset_fsb = XFS_B_TO_FSBT(ip->i_mount, offset);
 	end_fsb = XFS_B_TO_FSB(ip->i_mount, offset + count);
 
-	/* Start a rolling transaction to switch the mappings */
-	resblks = XFS_EXTENTADD_SPACE_RES(ip->i_mount, XFS_DATA_FORK);
+	/*
+	 * Start a rolling transaction to switch the mappings.  We're
+	 * unlikely ever to have to remap 16T worth of single-block
+	 * extents, so just cap the worst case extent count to 2^32-1.
+	 * Stick a warning in just in case, and avoid 64-bit division.
+	 */
+	BUILD_BUG_ON(MAX_RW_COUNT > UINT_MAX);
+	if (end_fsb - offset_fsb > UINT_MAX) {
+		error = -EFSCORRUPTED;
+		xfs_force_shutdown(ip->i_mount, SHUTDOWN_CORRUPT_INCORE);
+		ASSERT(0);
+		goto out;
+	}
+	resblks = XFS_NEXTENTADD_SPACE_RES(ip->i_mount,
+			(unsigned int)(end_fsb - offset_fsb),
+			XFS_DATA_FORK);
 	error = xfs_trans_alloc(ip->i_mount, &M_RES(ip->i_mount)->tr_write,
 			resblks, 0, 0, &tp);
 	if (error)
@@ -690,6 +784,16 @@ xfs_reflink_end_cow(
 
 		ASSERT(!isnullstartblock(got.br_startblock));
 
+		/*
+		 * Don't remap unwritten extents; these are
+		 * speculatively preallocated CoW extents that have been
+		 * allocated but have not yet been involved in a write.
+		 */
+		if (got.br_state == XFS_EXT_UNWRITTEN) {
+			idx--;
+			goto next_extent;
+		}
+
 		/* Unmap the old blocks in the data fork. */
 		xfs_defer_init(&dfops, &firstfsb);
 		rlen = del.br_blockcount;
@@ -906,13 +1010,14 @@ STATIC int
 xfs_reflink_update_dest(
 	struct xfs_inode	*dest,
 	xfs_off_t		newlen,
-	xfs_extlen_t		cowextsize)
+	xfs_extlen_t		cowextsize,
+	bool			is_dedupe)
 {
 	struct xfs_mount	*mp = dest->i_mount;
 	struct xfs_trans	*tp;
 	int			error;
 
-	if (newlen <= i_size_read(VFS_I(dest)) && cowextsize == 0)
+	if (is_dedupe && newlen <= i_size_read(VFS_I(dest)) && cowextsize == 0)
 		return 0;
 
 	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 0, 0, 0, &tp);
@@ -933,6 +1038,10 @@ xfs_reflink_update_dest(
 		dest->i_d.di_flags2 |= XFS_DIFLAG2_COWEXTSIZE;
 	}
 
+	if (!is_dedupe) {
+		xfs_trans_ichgtime(tp, dest,
+				   XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	}
 	xfs_trans_log_inode(tp, dest, XFS_ILOG_CORE);
 
 	error = xfs_trans_commit(tp);
@@ -1345,8 +1454,14 @@ xfs_reflink_remap_range(
 		goto out_unlock;
 	}
 
-	if (len == 0)
+	/* Zero length dedupe exits immediately; reflink goes to EOF. */
+	if (len == 0) {
+		if (is_dedupe) {
+			ret = 0;
+			goto out_unlock;
+		}
 		len = isize - pos_in;
+	}
 
 	/* Ensure offsets don't wrap and the input is inside i_size */
 	if (pos_in + len < pos_in || pos_out + len < pos_out ||
@@ -1443,7 +1558,8 @@ xfs_reflink_remap_range(
 	    !(dest->i_d.di_flags2 & XFS_DIFLAG2_COWEXTSIZE))
 		cowextsize = src->i_d.di_cowextsize;
 
-	ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize);
+	ret = xfs_reflink_update_dest(dest, pos_out + len, cowextsize,
+			is_dedupe);
 
 out_unlock:
 	xfs_iunlock(src, XFS_MMAPLOCK_EXCL);
@@ -1595,7 +1711,7 @@ next:
 	 * We didn't find any shared blocks so turn off the reflink flag.
 	 * First, get rid of any leftover CoW mappings.
 	 */
-	error = xfs_reflink_cancel_cow_blocks(ip, tpp, 0, NULLFILEOFF);
+	error = xfs_reflink_cancel_cow_blocks(ip, tpp, 0, NULLFILEOFF, true);
 	if (error)
 		return error;
 
@@ -1697,37 +1813,3 @@ out:
 	trace_xfs_reflink_unshare_error(ip, error, _RET_IP_);
 	return error;
 }
-
-/*
- * Does this inode have any real CoW reservations?
- */
-bool
-xfs_reflink_has_real_cow_blocks(
-	struct xfs_inode		*ip)
-{
-	struct xfs_bmbt_irec		irec;
-	struct xfs_ifork		*ifp;
-	struct xfs_bmbt_rec_host	*gotp;
-	xfs_extnum_t			idx;
-
-	if (!xfs_is_reflink_inode(ip))
-		return false;
-
-	/* Go find the old extent in the CoW fork. */
-	ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
-	gotp = xfs_iext_bno_to_ext(ifp, 0, &idx);
-	while (gotp) {
-		xfs_bmbt_get_all(gotp, &irec);
-
-		if (!isnullstartblock(irec.br_startblock))
-			return true;
-
-		/* Roll on... */
-		idx++;
-		if (idx >= ifp->if_bytes / sizeof(xfs_bmbt_rec_t))
-			break;
-		gotp = xfs_iext_get_ext(ifp, idx);
-	}
-
-	return false;
-}
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_reflink.h linux-libre-4.9.52-gnu/fs/xfs/xfs_reflink.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_reflink.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_reflink.h	2017-09-27 08:40:05.000000000 -0400
@@ -30,6 +30,8 @@ extern int xfs_reflink_reserve_cow(struc
 		struct xfs_bmbt_irec *imap, bool *shared);
 extern int xfs_reflink_allocate_cow_range(struct xfs_inode *ip,
 		xfs_off_t offset, xfs_off_t count);
+extern int xfs_reflink_convert_cow(struct xfs_inode *ip, xfs_off_t offset,
+		xfs_off_t count);
 extern bool xfs_reflink_find_cow_mapping(struct xfs_inode *ip, xfs_off_t offset,
 		struct xfs_bmbt_irec *imap, bool *need_alloc);
 extern int xfs_reflink_trim_irec_to_next_cow(struct xfs_inode *ip,
@@ -37,9 +39,9 @@ extern int xfs_reflink_trim_irec_to_next
 
 extern int xfs_reflink_cancel_cow_blocks(struct xfs_inode *ip,
 		struct xfs_trans **tpp, xfs_fileoff_t offset_fsb,
-		xfs_fileoff_t end_fsb);
+		xfs_fileoff_t end_fsb, bool cancel_real);
 extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset,
-		xfs_off_t count);
+		xfs_off_t count, bool cancel_real);
 extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset,
 		xfs_off_t count);
 extern int xfs_reflink_recover_cow(struct xfs_mount *mp);
@@ -50,6 +52,4 @@ extern int xfs_reflink_clear_inode_flag(
 extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset,
 		xfs_off_t len);
 
-extern bool xfs_reflink_has_real_cow_blocks(struct xfs_inode *ip);
-
 #endif /* __XFS_REFLINK_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_super.c linux-libre-4.9.52-gnu/fs/xfs/xfs_super.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_super.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_super.c	2017-09-27 08:40:05.000000000 -0400
@@ -872,8 +872,15 @@ xfs_init_mount_workqueues(
 	if (!mp->m_eofblocks_workqueue)
 		goto out_destroy_log;
 
+	mp->m_sync_workqueue = alloc_workqueue("xfs-sync/%s", WQ_FREEZABLE, 0,
+					       mp->m_fsname);
+	if (!mp->m_sync_workqueue)
+		goto out_destroy_eofb;
+
 	return 0;
 
+out_destroy_eofb:
+	destroy_workqueue(mp->m_eofblocks_workqueue);
 out_destroy_log:
 	destroy_workqueue(mp->m_log_workqueue);
 out_destroy_reclaim:
@@ -894,6 +901,7 @@ STATIC void
 xfs_destroy_mount_workqueues(
 	struct xfs_mount	*mp)
 {
+	destroy_workqueue(mp->m_sync_workqueue);
 	destroy_workqueue(mp->m_eofblocks_workqueue);
 	destroy_workqueue(mp->m_log_workqueue);
 	destroy_workqueue(mp->m_reclaim_workqueue);
@@ -948,7 +956,7 @@ xfs_fs_destroy_inode(
 	XFS_STATS_INC(ip->i_mount, vn_remove);
 
 	if (xfs_is_reflink_inode(ip)) {
-		error = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF);
+		error = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF, true);
 		if (error && !XFS_FORCED_SHUTDOWN(ip->i_mount))
 			xfs_warn(ip->i_mount,
 "Error %d while evicting CoW blocks for inode %llu.",
@@ -1206,7 +1214,7 @@ xfs_test_remount_options(
 	tmp_mp->m_super = sb;
 	error = xfs_parseargs(tmp_mp, options);
 	xfs_free_fsname(tmp_mp);
-	kfree(tmp_mp);
+	kmem_free(tmp_mp);
 
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_sysfs.c linux-libre-4.9.52-gnu/fs/xfs/xfs_sysfs.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -396,7 +396,7 @@ max_retries_show(
 	int		retries;
 	struct xfs_error_cfg *cfg = to_error_cfg(kobject);
 
-	if (cfg->retry_timeout == XFS_ERR_RETRY_FOREVER)
+	if (cfg->max_retries == XFS_ERR_RETRY_FOREVER)
 		retries = -1;
 	else
 		retries = cfg->max_retries;
@@ -422,7 +422,7 @@ max_retries_store(
 		return -EINVAL;
 
 	if (val == -1)
-		cfg->retry_timeout = XFS_ERR_RETRY_FOREVER;
+		cfg->max_retries = XFS_ERR_RETRY_FOREVER;
 	else
 		cfg->max_retries = val;
 	return count;
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_trace.h linux-libre-4.9.52-gnu/fs/xfs/xfs_trace.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_trace.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_trace.h	2017-09-27 08:40:05.000000000 -0400
@@ -366,6 +366,7 @@ DEFINE_BUF_EVENT(xfs_buf_iowait_done);
 DEFINE_BUF_EVENT(xfs_buf_delwri_queue);
 DEFINE_BUF_EVENT(xfs_buf_delwri_queued);
 DEFINE_BUF_EVENT(xfs_buf_delwri_split);
+DEFINE_BUF_EVENT(xfs_buf_delwri_pushbuf);
 DEFINE_BUF_EVENT(xfs_buf_get_uncached);
 DEFINE_BUF_EVENT(xfs_bdstrat_shut);
 DEFINE_BUF_EVENT(xfs_buf_item_relse);
@@ -519,7 +520,6 @@ DEFINE_BUF_ITEM_EVENT(xfs_buf_item_size)
 DEFINE_BUF_ITEM_EVENT(xfs_buf_item_size_ordered);
 DEFINE_BUF_ITEM_EVENT(xfs_buf_item_size_stale);
 DEFINE_BUF_ITEM_EVENT(xfs_buf_item_format);
-DEFINE_BUF_ITEM_EVENT(xfs_buf_item_format_ordered);
 DEFINE_BUF_ITEM_EVENT(xfs_buf_item_format_stale);
 DEFINE_BUF_ITEM_EVENT(xfs_buf_item_ordered);
 DEFINE_BUF_ITEM_EVENT(xfs_buf_item_pin);
@@ -1990,6 +1990,24 @@ DEFINE_EVENT(xfs_swap_extent_class, name
 DEFINE_SWAPEXT_EVENT(xfs_swap_extent_before);
 DEFINE_SWAPEXT_EVENT(xfs_swap_extent_after);
 
+TRACE_EVENT(xfs_log_recover,
+	TP_PROTO(struct xlog *log, xfs_daddr_t headblk, xfs_daddr_t tailblk),
+	TP_ARGS(log, headblk, tailblk),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_daddr_t, headblk)
+		__field(xfs_daddr_t, tailblk)
+	),
+	TP_fast_assign(
+		__entry->dev = log->l_mp->m_super->s_dev;
+		__entry->headblk = headblk;
+		__entry->tailblk = tailblk;
+	),
+	TP_printk("dev %d:%d headblk 0x%llx tailblk 0x%llx",
+		  MAJOR(__entry->dev), MINOR(__entry->dev), __entry->headblk,
+		  __entry->tailblk)
+)
+
 TRACE_EVENT(xfs_log_recover_record,
 	TP_PROTO(struct xlog *log, struct xlog_rec_header *rhead, int pass),
 	TP_ARGS(log, rhead, pass),
@@ -3183,6 +3201,7 @@ DECLARE_EVENT_CLASS(xfs_inode_irec_class
 		__field(xfs_fileoff_t, lblk)
 		__field(xfs_extlen_t, len)
 		__field(xfs_fsblock_t, pblk)
+		__field(int, state)
 	),
 	TP_fast_assign(
 		__entry->dev = VFS_I(ip)->i_sb->s_dev;
@@ -3190,13 +3209,15 @@ DECLARE_EVENT_CLASS(xfs_inode_irec_class
 		__entry->lblk = irec->br_startoff;
 		__entry->len = irec->br_blockcount;
 		__entry->pblk = irec->br_startblock;
+		__entry->state = irec->br_state;
 	),
-	TP_printk("dev %d:%d ino 0x%llx lblk 0x%llx len 0x%x pblk %llu",
+	TP_printk("dev %d:%d ino 0x%llx lblk 0x%llx len 0x%x pblk %llu st %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
 		  __entry->lblk,
 		  __entry->len,
-		  __entry->pblk)
+		  __entry->pblk,
+		  __entry->state)
 );
 #define DEFINE_INODE_IREC_EVENT(name) \
 DEFINE_EVENT(xfs_inode_irec_class, name, \
@@ -3345,11 +3366,12 @@ DEFINE_INODE_IREC_EVENT(xfs_reflink_trim
 DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_alloc);
 DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_found);
 DEFINE_INODE_IREC_EVENT(xfs_reflink_cow_enospc);
+DEFINE_INODE_IREC_EVENT(xfs_reflink_convert_cow);
 
 DEFINE_RW_EVENT(xfs_reflink_reserve_cow);
 DEFINE_RW_EVENT(xfs_reflink_allocate_cow_range);
 
-DEFINE_INODE_IREC_EVENT(xfs_reflink_bounce_dio_write);
+DEFINE_SIMPLE_IO_EVENT(xfs_reflink_bounce_dio_write);
 DEFINE_IOMAP_EVENT(xfs_reflink_find_cow_mapping);
 DEFINE_INODE_IREC_EVENT(xfs_reflink_trim_irec);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_trans_ail.c linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_ail.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_trans_ail.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_ail.c	2017-09-27 08:40:05.000000000 -0400
@@ -684,8 +684,24 @@ xfs_trans_ail_update_bulk(
 	}
 }
 
-/*
- * xfs_trans_ail_delete_bulk - remove multiple log items from the AIL
+bool
+xfs_ail_delete_one(
+	struct xfs_ail		*ailp,
+	struct xfs_log_item	*lip)
+{
+	struct xfs_log_item	*mlip = xfs_ail_min(ailp);
+
+	trace_xfs_ail_delete(lip, mlip->li_lsn, lip->li_lsn);
+	xfs_ail_delete(ailp, lip);
+	xfs_clear_li_failed(lip);
+	lip->li_flags &= ~XFS_LI_IN_AIL;
+	lip->li_lsn = 0;
+
+	return mlip == lip;
+}
+
+/**
+ * Remove a log items from the AIL
  *
  * @xfs_trans_ail_delete_bulk takes an array of log items that all need to
  * removed from the AIL. The caller is already holding the AIL lock, and done
@@ -706,52 +722,36 @@ xfs_trans_ail_update_bulk(
  * before returning.
  */
 void
-xfs_trans_ail_delete_bulk(
+xfs_trans_ail_delete(
 	struct xfs_ail		*ailp,
-	struct xfs_log_item	**log_items,
-	int			nr_items,
+	struct xfs_log_item	*lip,
 	int			shutdown_type) __releases(ailp->xa_lock)
 {
-	xfs_log_item_t		*mlip;
-	int			mlip_changed = 0;
-	int			i;
-
-	mlip = xfs_ail_min(ailp);
-
-	for (i = 0; i < nr_items; i++) {
-		struct xfs_log_item *lip = log_items[i];
-		if (!(lip->li_flags & XFS_LI_IN_AIL)) {
-			struct xfs_mount	*mp = ailp->xa_mount;
+	struct xfs_mount	*mp = ailp->xa_mount;
+	bool			mlip_changed;
 
-			spin_unlock(&ailp->xa_lock);
-			if (!XFS_FORCED_SHUTDOWN(mp)) {
-				xfs_alert_tag(mp, XFS_PTAG_AILDELETE,
-		"%s: attempting to delete a log item that is not in the AIL",
-						__func__);
-				xfs_force_shutdown(mp, shutdown_type);
-			}
-			return;
+	if (!(lip->li_flags & XFS_LI_IN_AIL)) {
+		spin_unlock(&ailp->xa_lock);
+		if (!XFS_FORCED_SHUTDOWN(mp)) {
+			xfs_alert_tag(mp, XFS_PTAG_AILDELETE,
+	"%s: attempting to delete a log item that is not in the AIL",
+					__func__);
+			xfs_force_shutdown(mp, shutdown_type);
 		}
-
-		trace_xfs_ail_delete(lip, mlip->li_lsn, lip->li_lsn);
-		xfs_ail_delete(ailp, lip);
-		lip->li_flags &= ~XFS_LI_IN_AIL;
-		lip->li_lsn = 0;
-		if (mlip == lip)
-			mlip_changed = 1;
+		return;
 	}
 
+	mlip_changed = xfs_ail_delete_one(ailp, lip);
 	if (mlip_changed) {
-		if (!XFS_FORCED_SHUTDOWN(ailp->xa_mount))
-			xlog_assign_tail_lsn_locked(ailp->xa_mount);
+		if (!XFS_FORCED_SHUTDOWN(mp))
+			xlog_assign_tail_lsn_locked(mp);
 		if (list_empty(&ailp->xa_ail))
 			wake_up_all(&ailp->xa_empty);
-		spin_unlock(&ailp->xa_lock);
+	}
 
+	spin_unlock(&ailp->xa_lock);
+	if (mlip_changed)
 		xfs_log_space_wake(ailp->xa_mount);
-	} else {
-		spin_unlock(&ailp->xa_lock);
-	}
 }
 
 int
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_trans_bmap.c linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_bmap.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_trans_bmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_bmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -63,7 +63,7 @@ xfs_trans_log_finish_bmap_update(
 	int				whichfork,
 	xfs_fileoff_t			startoff,
 	xfs_fsblock_t			startblock,
-	xfs_filblks_t			blockcount,
+	xfs_filblks_t			*blockcount,
 	xfs_exntst_t			state)
 {
 	int				error;
@@ -196,16 +196,23 @@ xfs_bmap_update_finish_item(
 	void				**state)
 {
 	struct xfs_bmap_intent		*bmap;
+	xfs_filblks_t			count;
 	int				error;
 
 	bmap = container_of(item, struct xfs_bmap_intent, bi_list);
+	count = bmap->bi_bmap.br_blockcount;
 	error = xfs_trans_log_finish_bmap_update(tp, done_item, dop,
 			bmap->bi_type,
 			bmap->bi_owner, bmap->bi_whichfork,
 			bmap->bi_bmap.br_startoff,
 			bmap->bi_bmap.br_startblock,
-			bmap->bi_bmap.br_blockcount,
+			&count,
 			bmap->bi_bmap.br_state);
+	if (!error && count > 0) {
+		ASSERT(bmap->bi_type == XFS_BMAP_UNMAP);
+		bmap->bi_bmap.br_blockcount = count;
+		return -EAGAIN;
+	}
 	kmem_free(bmap);
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_trans_buf.c linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_buf.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_trans_buf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_buf.c	2017-09-27 08:40:05.000000000 -0400
@@ -356,6 +356,7 @@ xfs_trans_brelse(xfs_trans_t	*tp,
 		 xfs_buf_t	*bp)
 {
 	xfs_buf_log_item_t	*bip;
+	int			freed;
 
 	/*
 	 * Default to a normal brelse() call if the tp is NULL.
@@ -419,16 +420,22 @@ xfs_trans_brelse(xfs_trans_t	*tp,
 	/*
 	 * Drop our reference to the buf log item.
 	 */
-	atomic_dec(&bip->bli_refcount);
+	freed = atomic_dec_and_test(&bip->bli_refcount);
 
 	/*
-	 * If the buf item is not tracking data in the log, then
-	 * we must free it before releasing the buffer back to the
-	 * free pool.  Before releasing the buffer to the free pool,
-	 * clear the transaction pointer in b_fsprivate2 to dissolve
-	 * its relation to this transaction.
+	 * If the buf item is not tracking data in the log, then we must free it
+	 * before releasing the buffer back to the free pool.
+	 *
+	 * If the fs has shutdown and we dropped the last reference, it may fall
+	 * on us to release a (possibly dirty) bli if it never made it to the
+	 * AIL (e.g., the aborted unpin already happened and didn't release it
+	 * due to our reference). Since we're already shutdown and need xa_lock,
+	 * just force remove from the AIL and release the bli here.
 	 */
-	if (!xfs_buf_item_dirty(bip)) {
+	if (XFS_FORCED_SHUTDOWN(tp->t_mountp) && freed) {
+		xfs_trans_ail_remove(&bip->bli_item, SHUTDOWN_LOG_IO_ERROR);
+		xfs_buf_item_relse(bp);
+	} else if (!(bip->bli_flags & XFS_BLI_DIRTY)) {
 /***
 		ASSERT(bp->b_pincount == 0);
 ***/
@@ -486,25 +493,17 @@ xfs_trans_bhold_release(xfs_trans_t	*tp,
 }
 
 /*
- * This is called to mark bytes first through last inclusive of the given
- * buffer as needing to be logged when the transaction is committed.
- * The buffer must already be associated with the given transaction.
- *
- * First and last are numbers relative to the beginning of this buffer,
- * so the first byte in the buffer is numbered 0 regardless of the
- * value of b_blkno.
+ * Mark a buffer dirty in the transaction.
  */
 void
-xfs_trans_log_buf(xfs_trans_t	*tp,
-		  xfs_buf_t	*bp,
-		  uint		first,
-		  uint		last)
+xfs_trans_dirty_buf(
+	struct xfs_trans	*tp,
+	struct xfs_buf		*bp)
 {
-	xfs_buf_log_item_t	*bip = bp->b_fspriv;
+	struct xfs_buf_log_item	*bip = bp->b_fspriv;
 
 	ASSERT(bp->b_transp == tp);
 	ASSERT(bip != NULL);
-	ASSERT(first <= last && last < BBTOB(bp->b_length));
 	ASSERT(bp->b_iodone == NULL ||
 	       bp->b_iodone == xfs_buf_iodone_callbacks);
 
@@ -524,8 +523,6 @@ xfs_trans_log_buf(xfs_trans_t	*tp,
 	bp->b_iodone = xfs_buf_iodone_callbacks;
 	bip->bli_item.li_cb = xfs_buf_iodone;
 
-	trace_xfs_trans_log_buf(bip);
-
 	/*
 	 * If we invalidated the buffer within this transaction, then
 	 * cancel the invalidation now that we're dirtying the buffer
@@ -538,17 +535,37 @@ xfs_trans_log_buf(xfs_trans_t	*tp,
 		bp->b_flags &= ~XBF_STALE;
 		bip->__bli_format.blf_flags &= ~XFS_BLF_CANCEL;
 	}
+	bip->bli_flags |= XFS_BLI_DIRTY | XFS_BLI_LOGGED;
 
 	tp->t_flags |= XFS_TRANS_DIRTY;
 	bip->bli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
+}
 
-	/*
-	 * If we have an ordered buffer we are not logging any dirty range but
-	 * it still needs to be marked dirty and that it has been logged.
-	 */
-	bip->bli_flags |= XFS_BLI_DIRTY | XFS_BLI_LOGGED;
-	if (!(bip->bli_flags & XFS_BLI_ORDERED))
-		xfs_buf_item_log(bip, first, last);
+/*
+ * This is called to mark bytes first through last inclusive of the given
+ * buffer as needing to be logged when the transaction is committed.
+ * The buffer must already be associated with the given transaction.
+ *
+ * First and last are numbers relative to the beginning of this buffer,
+ * so the first byte in the buffer is numbered 0 regardless of the
+ * value of b_blkno.
+ */
+void
+xfs_trans_log_buf(
+	struct xfs_trans	*tp,
+	struct xfs_buf		*bp,
+	uint			first,
+	uint			last)
+{
+	struct xfs_buf_log_item	*bip = bp->b_fspriv;
+
+	ASSERT(first <= last && last < BBTOB(bp->b_length));
+	ASSERT(!(bip->bli_flags & XFS_BLI_ORDERED));
+
+	xfs_trans_dirty_buf(tp, bp);
+
+	trace_xfs_trans_log_buf(bip);
+	xfs_buf_item_log(bip, first, last);
 }
 
 
@@ -701,14 +718,13 @@ xfs_trans_inode_alloc_buf(
 }
 
 /*
- * Mark the buffer as ordered for this transaction. This means
- * that the contents of the buffer are not recorded in the transaction
- * but it is tracked in the AIL as though it was. This allows us
- * to record logical changes in transactions rather than the physical
- * changes we make to the buffer without changing writeback ordering
- * constraints of metadata buffers.
+ * Mark the buffer as ordered for this transaction. This means that the contents
+ * of the buffer are not recorded in the transaction but it is tracked in the
+ * AIL as though it was. This allows us to record logical changes in
+ * transactions rather than the physical changes we make to the buffer without
+ * changing writeback ordering constraints of metadata buffers.
  */
-void
+bool
 xfs_trans_ordered_buf(
 	struct xfs_trans	*tp,
 	struct xfs_buf		*bp)
@@ -719,8 +735,18 @@ xfs_trans_ordered_buf(
 	ASSERT(bip != NULL);
 	ASSERT(atomic_read(&bip->bli_refcount) > 0);
 
+	if (xfs_buf_item_dirty_format(bip))
+		return false;
+
 	bip->bli_flags |= XFS_BLI_ORDERED;
 	trace_xfs_buf_item_ordered(bip);
+
+	/*
+	 * We don't log a dirty range of an ordered buffer but it still needs
+	 * to be marked dirty and that it has been logged.
+	 */
+	xfs_trans_dirty_buf(tp, bp);
+	return true;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_trans.c linux-libre-4.9.52-gnu/fs/xfs/xfs_trans.c
--- linux-libre-4.9-gnu/fs/xfs/xfs_trans.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_trans.c	2017-09-27 08:40:05.000000000 -0400
@@ -263,6 +263,28 @@ xfs_trans_alloc(
 }
 
 /*
+ * Create an empty transaction with no reservation.  This is a defensive
+ * mechanism for routines that query metadata without actually modifying
+ * them -- if the metadata being queried is somehow cross-linked (think a
+ * btree block pointer that points higher in the tree), we risk deadlock.
+ * However, blocks grabbed as part of a transaction can be re-grabbed.
+ * The verifiers will notice the corrupt block and the operation will fail
+ * back to userspace without deadlocking.
+ *
+ * Note the zero-length reservation; this transaction MUST be cancelled
+ * without any dirty data.
+ */
+int
+xfs_trans_alloc_empty(
+	struct xfs_mount		*mp,
+	struct xfs_trans		**tpp)
+{
+	struct xfs_trans_res		resv = {0};
+
+	return xfs_trans_alloc(mp, &resv, 0, 0, XFS_TRANS_NO_WRITECOUNT, tpp);
+}
+
+/*
  * Record the indicated change to the given field for application
  * to the file system's superblock when the transaction commits.
  * For now, just store the change in the transaction structure.
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_trans.h linux-libre-4.9.52-gnu/fs/xfs/xfs_trans.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_trans.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_trans.h	2017-09-27 08:40:05.000000000 -0400
@@ -50,6 +50,7 @@ typedef struct xfs_log_item {
 	struct xfs_ail			*li_ailp;	/* ptr to AIL */
 	uint				li_type;	/* item type */
 	uint				li_flags;	/* misc flags */
+	struct xfs_buf			*li_buf;	/* real buffer pointer */
 	struct xfs_log_item		*li_bio_list;	/* buffer item list */
 	void				(*li_cb)(struct xfs_buf *,
 						 struct xfs_log_item *);
@@ -65,11 +66,13 @@ typedef struct xfs_log_item {
 } xfs_log_item_t;
 
 #define	XFS_LI_IN_AIL	0x1
-#define XFS_LI_ABORTED	0x2
+#define	XFS_LI_ABORTED	0x2
+#define	XFS_LI_FAILED	0x4
 
 #define XFS_LI_FLAGS \
 	{ XFS_LI_IN_AIL,	"IN_AIL" }, \
-	{ XFS_LI_ABORTED,	"ABORTED" }
+	{ XFS_LI_ABORTED,	"ABORTED" }, \
+	{ XFS_LI_FAILED,	"FAILED" }
 
 struct xfs_item_ops {
 	void (*iop_size)(xfs_log_item_t *, int *, int *);
@@ -80,6 +83,7 @@ struct xfs_item_ops {
 	void (*iop_unlock)(xfs_log_item_t *);
 	xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
 	void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
+	void (*iop_error)(xfs_log_item_t *, xfs_buf_t *);
 };
 
 void	xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
@@ -159,6 +163,8 @@ typedef struct xfs_trans {
 int		xfs_trans_alloc(struct xfs_mount *mp, struct xfs_trans_res *resp,
 			uint blocks, uint rtextents, uint flags,
 			struct xfs_trans **tpp);
+int		xfs_trans_alloc_empty(struct xfs_mount *mp,
+			struct xfs_trans **tpp);
 void		xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
 
 struct xfs_buf	*xfs_trans_get_buf_map(struct xfs_trans *tp,
@@ -211,12 +217,14 @@ void		xfs_trans_bhold_release(xfs_trans_
 void		xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
 void		xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
 void		xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
-void		xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
+bool		xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
 void		xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
 void		xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
 void		xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
 void		xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
-void		xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
+void		xfs_trans_log_buf(struct xfs_trans *, struct xfs_buf *, uint,
+				  uint);
+void		xfs_trans_dirty_buf(struct xfs_trans *, struct xfs_buf *);
 void		xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
 
 void		xfs_extent_free_init_defer_op(void);
@@ -275,6 +283,6 @@ int xfs_trans_log_finish_bmap_update(str
 		struct xfs_bud_log_item *rudp, struct xfs_defer_ops *dfops,
 		enum xfs_bmap_intent_type type, struct xfs_inode *ip,
 		int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock,
-		xfs_filblks_t blockcount, xfs_exntst_t state);
+		xfs_filblks_t *blockcount, xfs_exntst_t state);
 
 #endif	/* __XFS_TRANS_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/fs/xfs/xfs_trans_priv.h linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_priv.h
--- linux-libre-4.9-gnu/fs/xfs/xfs_trans_priv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/fs/xfs/xfs_trans_priv.h	2017-09-27 08:40:05.000000000 -0400
@@ -106,18 +106,9 @@ xfs_trans_ail_update(
 	xfs_trans_ail_update_bulk(ailp, NULL, &lip, 1, lsn);
 }
 
-void	xfs_trans_ail_delete_bulk(struct xfs_ail *ailp,
-				struct xfs_log_item **log_items, int nr_items,
-				int shutdown_type)
-				__releases(ailp->xa_lock);
-static inline void
-xfs_trans_ail_delete(
-	struct xfs_ail	*ailp,
-	xfs_log_item_t	*lip,
-	int		shutdown_type) __releases(ailp->xa_lock)
-{
-	xfs_trans_ail_delete_bulk(ailp, &lip, 1, shutdown_type);
-}
+bool xfs_ail_delete_one(struct xfs_ail *ailp, struct xfs_log_item *lip);
+void xfs_trans_ail_delete(struct xfs_ail *ailp, struct xfs_log_item *lip,
+		int shutdown_type) __releases(ailp->xa_lock);
 
 static inline void
 xfs_trans_ail_remove(
@@ -173,4 +164,35 @@ xfs_trans_ail_copy_lsn(
 	*dst = *src;
 }
 #endif
+
+static inline void
+xfs_clear_li_failed(
+	struct xfs_log_item	*lip)
+{
+	struct xfs_buf	*bp = lip->li_buf;
+
+	ASSERT(lip->li_flags & XFS_LI_IN_AIL);
+	lockdep_assert_held(&lip->li_ailp->xa_lock);
+
+	if (lip->li_flags & XFS_LI_FAILED) {
+		lip->li_flags &= ~XFS_LI_FAILED;
+		lip->li_buf = NULL;
+		xfs_buf_rele(bp);
+	}
+}
+
+static inline void
+xfs_set_li_failed(
+	struct xfs_log_item	*lip,
+	struct xfs_buf		*bp)
+{
+	lockdep_assert_held(&lip->li_ailp->xa_lock);
+
+	if (!(lip->li_flags & XFS_LI_FAILED)) {
+		xfs_buf_hold(bp);
+		lip->li_flags |= XFS_LI_FAILED;
+		lip->li_buf = bp;
+	}
+}
+
 #endif	/* __XFS_TRANS_PRIV_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/acpi/platform/acenv.h linux-libre-4.9.52-gnu/include/acpi/platform/acenv.h
--- linux-libre-4.9-gnu/include/acpi/platform/acenv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/acpi/platform/acenv.h	2017-09-27 08:40:05.000000000 -0400
@@ -177,7 +177,7 @@
 #include "acmsvc.h"
 
 #elif defined(__INTEL_COMPILER)
-#include "acintel.h"
+#include <acpi/platform/acintel.h>
 
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/acpi/platform/acintel.h linux-libre-4.9.52-gnu/include/acpi/platform/acintel.h
--- linux-libre-4.9-gnu/include/acpi/platform/acintel.h	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/acpi/platform/acintel.h	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,87 @@
+/******************************************************************************
+ *
+ * Name: acintel.h - VC specific defines, etc.
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2017, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#ifndef __ACINTEL_H__
+#define __ACINTEL_H__
+
+/*
+ * Use compiler specific <stdarg.h> is a good practice for even when
+ * -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined.
+ */
+#include <stdarg.h>
+
+/* Configuration specific to Intel 64-bit C compiler */
+
+#define COMPILER_DEPENDENT_INT64    __int64
+#define COMPILER_DEPENDENT_UINT64   unsigned __int64
+#define ACPI_INLINE                 __inline
+
+/*
+ * Calling conventions:
+ *
+ * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
+ * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
+ * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
+ * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
+ */
+#define ACPI_SYSTEM_XFACE
+#define ACPI_EXTERNAL_XFACE
+#define ACPI_INTERNAL_XFACE
+#define ACPI_INTERNAL_VAR_XFACE
+
+/* remark 981 - operands evaluated in no particular order */
+#pragma warning(disable:981)
+
+/* warn C4100: unreferenced formal parameter */
+#pragma warning(disable:4100)
+
+/* warn C4127: conditional expression is constant */
+#pragma warning(disable:4127)
+
+/* warn C4706: assignment within conditional expression */
+#pragma warning(disable:4706)
+
+/* warn C4214: bit field types other than int */
+#pragma warning(disable:4214)
+
+#endif				/* __ACINTEL_H__ */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/asm-generic/asm-prototypes.h linux-libre-4.9.52-gnu/include/asm-generic/asm-prototypes.h
--- linux-libre-4.9-gnu/include/asm-generic/asm-prototypes.h	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/asm-generic/asm-prototypes.h	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,13 @@
+#include <linux/bitops.h>
+#undef __memset
+extern void *__memset(void *, int, __kernel_size_t);
+#undef __memcpy
+extern void *__memcpy(void *, const void *, __kernel_size_t);
+#undef __memmove
+extern void *__memmove(void *, const void *, __kernel_size_t);
+#undef memset
+extern void *memset(void *, int, __kernel_size_t);
+#undef memcpy
+extern void *memcpy(void *, const void *, __kernel_size_t);
+#undef memmove
+extern void *memmove(void *, const void *, __kernel_size_t);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/asm-generic/topology.h linux-libre-4.9.52-gnu/include/asm-generic/topology.h
--- linux-libre-4.9-gnu/include/asm-generic/topology.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/asm-generic/topology.h	2017-09-27 08:40:05.000000000 -0400
@@ -48,7 +48,11 @@
 #define parent_node(node)	((void)(node),0)
 #endif
 #ifndef cpumask_of_node
-#define cpumask_of_node(node)	((void)node, cpu_online_mask)
+  #ifdef CONFIG_NEED_MULTIPLE_NODES
+    #define cpumask_of_node(node)	((node) == 0 ? cpu_online_mask : cpu_none_mask)
+  #else
+    #define cpumask_of_node(node)	((void)node, cpu_online_mask)
+  #endif
 #endif
 #ifndef pcibus_to_node
 #define pcibus_to_node(bus)	((void)(bus), -1)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/asm-generic/vmlinux.lds.h linux-libre-4.9.52-gnu/include/asm-generic/vmlinux.lds.h
--- linux-libre-4.9-gnu/include/asm-generic/vmlinux.lds.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/asm-generic/vmlinux.lds.h	2017-09-27 08:40:05.000000000 -0400
@@ -60,6 +60,22 @@
 #define ALIGN_FUNCTION()  . = ALIGN(8)
 
 /*
+ * LD_DEAD_CODE_DATA_ELIMINATION option enables -fdata-sections, which
+ * generates .data.identifier sections, which need to be pulled in with
+ * .data. We don't want to pull in .data..other sections, which Linux
+ * has defined. Same for text and bss.
+ */
+#ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
+#define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
+#define DATA_MAIN .data .data.[0-9a-zA-Z_]*
+#define BSS_MAIN .bss .bss.[0-9a-zA-Z_]*
+#else
+#define TEXT_MAIN .text
+#define DATA_MAIN .data
+#define BSS_MAIN .bss
+#endif
+
+/*
  * Align to a 32 byte boundary equal to the
  * alignment gcc 4.5 uses for a struct
  */
@@ -198,12 +214,9 @@
 
 /*
  * .data section
- * LD_DEAD_CODE_DATA_ELIMINATION option enables -fdata-sections generates
- * .data.identifier which needs to be pulled in with .data, but don't want to
- * pull in .data..stuff which has its own requirements. Same for bss.
  */
 #define DATA_DATA							\
-	*(.data .data.[0-9a-zA-Z_]*)					\
+	*(DATA_MAIN)							\
 	*(.ref.data)							\
 	*(.data..shared_aligned) /* percpu related */			\
 	MEM_KEEP(init.data)						\
@@ -436,16 +449,17 @@
 		VMLINUX_SYMBOL(__security_initcall_end) = .;		\
 	}
 
-/* .text section. Map to function alignment to avoid address changes
+/*
+ * .text section. Map to function alignment to avoid address changes
  * during second ld run in second ld pass when generating System.map
- * LD_DEAD_CODE_DATA_ELIMINATION option enables -ffunction-sections generates
- * .text.identifier which needs to be pulled in with .text , but some
- * architectures define .text.foo which is not intended to be pulled in here.
- * Those enabling LD_DEAD_CODE_DATA_ELIMINATION must ensure they don't have
- * conflicting section names, and must pull in .text.[0-9a-zA-Z_]* */
+ *
+ * TEXT_MAIN here will match .text.fixup and .text.unlikely if dead
+ * code elimination is enabled, so these sections should be converted
+ * to use ".." first.
+ */
 #define TEXT_TEXT							\
 		ALIGN_FUNCTION();					\
-		*(.text.hot .text .text.fixup .text.unlikely)		\
+		*(.text.hot TEXT_MAIN .text.fixup .text.unlikely)	\
 		*(.ref.text)						\
 	MEM_KEEP(init.text)						\
 	MEM_KEEP(exit.text)						\
@@ -613,7 +627,7 @@
 		BSS_FIRST_SECTIONS					\
 		*(.bss..page_aligned)					\
 		*(.dynbss)						\
-		*(.bss .bss.[0-9a-zA-Z_]*)				\
+		*(BSS_MAIN)						\
 		*(COMMON)						\
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/crypto/internal/hash.h linux-libre-4.9.52-gnu/include/crypto/internal/hash.h
--- linux-libre-4.9-gnu/include/crypto/internal/hash.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/crypto/internal/hash.h	2017-09-27 08:40:05.000000000 -0400
@@ -166,6 +166,16 @@ static inline struct ahash_instance *aha
 	return crypto_alloc_instance2(name, alg, ahash_instance_headroom());
 }
 
+static inline void ahash_request_complete(struct ahash_request *req, int err)
+{
+	req->base.complete(&req->base, err);
+}
+
+static inline u32 ahash_request_flags(struct ahash_request *req)
+{
+	return req->base.flags;
+}
+
 static inline struct crypto_ahash *crypto_spawn_ahash(
 	struct crypto_ahash_spawn *spawn)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/drm/drm_connector.h linux-libre-4.9.52-gnu/include/drm/drm_connector.h
--- linux-libre-4.9-gnu/include/drm/drm_connector.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/drm/drm_connector.h	2017-09-27 08:40:05.000000000 -0400
@@ -345,6 +345,8 @@ struct drm_connector_funcs {
 	 * core drm connector interfaces. Everything added from this callback
 	 * should be unregistered in the early_unregister callback.
 	 *
+	 * This is called while holding drm_connector->mutex.
+	 *
 	 * Returns:
 	 *
 	 * 0 on success, or a negative error code on failure.
@@ -359,6 +361,8 @@ struct drm_connector_funcs {
 	 * late_register(). It is called from drm_connector_unregister(),
 	 * early in the driver unload sequence to disable userspace access
 	 * before data structures are torndown.
+	 *
+	 * This is called while holding drm_connector->mutex.
 	 */
 	void (*early_unregister)(struct drm_connector *connector);
 
@@ -511,7 +515,6 @@ struct drm_cmdline_mode {
  * @interlace_allowed: can this connector handle interlaced modes?
  * @doublescan_allowed: can this connector handle doublescan?
  * @stereo_allowed: can this connector handle stereo modes?
- * @registered: is this connector exposed (registered) with userspace?
  * @modes: modes available on this connector (from fill_modes() + user)
  * @status: one of the drm_connector_status enums (connected, not, or unknown)
  * @probed_modes: list of modes derived directly from the display
@@ -560,6 +563,13 @@ struct drm_connector {
 	char *name;
 
 	/**
+	 * @mutex: Lock for general connector state, but currently only protects
+	 * @registered. Most of the connector state is still protected by the
+	 * mutex in &drm_mode_config.
+	 */
+	struct mutex mutex;
+
+	/**
 	 * @index: Compacted connector index, which matches the position inside
 	 * the mode_config.list for drivers not supporting hot-add/removing. Can
 	 * be used as an array index. It is invariant over the lifetime of the
@@ -572,6 +582,10 @@ struct drm_connector {
 	bool interlace_allowed;
 	bool doublescan_allowed;
 	bool stereo_allowed;
+	/**
+	 * @registered: Is this connector exposed (registered) with userspace?
+	 * Protected by @mutex.
+	 */
 	bool registered;
 	struct list_head modes; /* list of modes on this connector */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/drm/drmP.h linux-libre-4.9.52-gnu/include/drm/drmP.h
--- linux-libre-4.9-gnu/include/drm/drmP.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/drm/drmP.h	2017-09-27 08:40:05.000000000 -0400
@@ -361,6 +361,7 @@ struct drm_ioctl_desc {
 /* Event queued up for userspace to read */
 struct drm_pending_event {
 	struct completion *completion;
+	void (*completion_release)(struct completion *completion);
 	struct drm_event *event;
 	struct fence *fence;
 	struct list_head link;
@@ -775,6 +776,7 @@ struct drm_device {
 	struct drm_minor *control;		/**< Control node */
 	struct drm_minor *primary;		/**< Primary node */
 	struct drm_minor *render;		/**< Render node */
+	bool registered;
 
 	/* currently active master for this device. Protected by master_mutex */
 	struct drm_master *master;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/drm/i915_pciids.h linux-libre-4.9.52-gnu/include/drm/i915_pciids.h
--- linux-libre-4.9-gnu/include/drm/i915_pciids.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/drm/i915_pciids.h	2017-09-27 08:40:05.000000000 -0400
@@ -226,23 +226,18 @@
 	INTEL_VGA_DEVICE(0x162A, info), /* Server */ \
 	INTEL_VGA_DEVICE(0x162D, info)  /* Workstation */
 
-#define INTEL_BDW_RSVDM_IDS(info) \
+#define INTEL_BDW_RSVD_IDS(info) \
 	INTEL_VGA_DEVICE(0x1632, info), /* ULT */ \
 	INTEL_VGA_DEVICE(0x1636, info), /* ULT */ \
 	INTEL_VGA_DEVICE(0x163B, info), /* Iris */ \
-	INTEL_VGA_DEVICE(0x163E, info)  /* ULX */
-
-#define INTEL_BDW_RSVDD_IDS(info) \
+	INTEL_VGA_DEVICE(0x163E, info), /* ULX */ \
 	INTEL_VGA_DEVICE(0x163A, info), /* Server */ \
 	INTEL_VGA_DEVICE(0x163D, info)  /* Workstation */
 
 #define INTEL_BDW_IDS(info) \
 	INTEL_BDW_GT12_IDS(info), \
 	INTEL_BDW_GT3_IDS(info), \
-	INTEL_BDW_RSVDM_IDS(info), \
-	INTEL_BDW_GT12_IDS(info), \
-	INTEL_BDW_GT3_IDS(info), \
-	INTEL_BDW_RSVDD_IDS(info)
+	INTEL_BDW_RSVD_IDS(info)
 
 #define INTEL_CHV_IDS(info) \
 	INTEL_VGA_DEVICE(0x22b0, info), \
diff -druNp --no-dereference linux-libre-4.9-gnu/include/drm/ttm/ttm_object.h linux-libre-4.9.52-gnu/include/drm/ttm/ttm_object.h
--- linux-libre-4.9-gnu/include/drm/ttm/ttm_object.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/drm/ttm/ttm_object.h	2017-09-27 08:40:05.000000000 -0400
@@ -229,6 +229,8 @@ extern void ttm_base_object_unref(struct
  * @ref_type: The type of reference.
  * @existed: Upon completion, indicates that an identical reference object
  * already existed, and the refcount was upped on that object instead.
+ * @require_existed: Fail with -EPERM if an identical ref object didn't
+ * already exist.
  *
  * Checks that the base object is shareable and adds a ref object to it.
  *
@@ -243,7 +245,8 @@ extern void ttm_base_object_unref(struct
  */
 extern int ttm_ref_object_add(struct ttm_object_file *tfile,
 			      struct ttm_base_object *base,
-			      enum ttm_ref_type ref_type, bool *existed);
+			      enum ttm_ref_type ref_type, bool *existed,
+			      bool require_existed);
 
 extern bool ttm_ref_object_exists(struct ttm_object_file *tfile,
 				  struct ttm_base_object *base);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/dt-bindings/clock/r8a7794-clock.h linux-libre-4.9.52-gnu/include/dt-bindings/clock/r8a7794-clock.h
--- linux-libre-4.9-gnu/include/dt-bindings/clock/r8a7794-clock.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/dt-bindings/clock/r8a7794-clock.h	2017-09-27 08:40:05.000000000 -0400
@@ -20,8 +20,7 @@
 #define R8A7794_CLK_QSPI		5
 #define R8A7794_CLK_SDH			6
 #define R8A7794_CLK_SD0			7
-#define R8A7794_CLK_Z			8
-#define R8A7794_CLK_RCAN		9
+#define R8A7794_CLK_RCAN		8
 
 /* MSTP0 */
 #define R8A7794_CLK_MSIOF0		0
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/arm-smccc.h linux-libre-4.9.52-gnu/include/linux/arm-smccc.h
--- linux-libre-4.9-gnu/include/linux/arm-smccc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/arm-smccc.h	2017-09-27 08:40:05.000000000 -0400
@@ -14,9 +14,6 @@
 #ifndef __LINUX_ARM_SMCCC_H
 #define __LINUX_ARM_SMCCC_H
 
-#include <linux/linkage.h>
-#include <linux/types.h>
-
 /*
  * This file provides common defines for ARM SMC Calling Convention as
  * specified in
@@ -60,6 +57,13 @@
 #define ARM_SMCCC_OWNER_TRUSTED_OS	50
 #define ARM_SMCCC_OWNER_TRUSTED_OS_END	63
 
+#define ARM_SMCCC_QUIRK_NONE		0
+#define ARM_SMCCC_QUIRK_QCOM_A6		1 /* Save/restore register a6 */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/linkage.h>
+#include <linux/types.h>
 /**
  * struct arm_smccc_res - Result from SMC/HVC call
  * @a0-a3 result values from registers 0 to 3
@@ -72,33 +76,59 @@ struct arm_smccc_res {
 };
 
 /**
- * arm_smccc_smc() - make SMC calls
+ * struct arm_smccc_quirk - Contains quirk information
+ * @id: quirk identification
+ * @state: quirk specific information
+ * @a6: Qualcomm quirk entry for returning post-smc call contents of a6
+ */
+struct arm_smccc_quirk {
+	int	id;
+	union {
+		unsigned long a6;
+	} state;
+};
+
+/**
+ * __arm_smccc_smc() - make SMC calls
  * @a0-a7: arguments passed in registers 0 to 7
  * @res: result values from registers 0 to 3
+ * @quirk: points to an arm_smccc_quirk, or NULL when no quirks are required.
  *
  * This function is used to make SMC calls following SMC Calling Convention.
  * The content of the supplied param are copied to registers 0 to 7 prior
  * to the SMC instruction. The return values are updated with the content
- * from register 0 to 3 on return from the SMC instruction.
+ * from register 0 to 3 on return from the SMC instruction.  An optional
+ * quirk structure provides vendor specific behavior.
  */
-asmlinkage void arm_smccc_smc(unsigned long a0, unsigned long a1,
+asmlinkage void __arm_smccc_smc(unsigned long a0, unsigned long a1,
 			unsigned long a2, unsigned long a3, unsigned long a4,
 			unsigned long a5, unsigned long a6, unsigned long a7,
-			struct arm_smccc_res *res);
+			struct arm_smccc_res *res, struct arm_smccc_quirk *quirk);
 
 /**
- * arm_smccc_hvc() - make HVC calls
+ * __arm_smccc_hvc() - make HVC calls
  * @a0-a7: arguments passed in registers 0 to 7
  * @res: result values from registers 0 to 3
+ * @quirk: points to an arm_smccc_quirk, or NULL when no quirks are required.
  *
  * This function is used to make HVC calls following SMC Calling
  * Convention.  The content of the supplied param are copied to registers 0
  * to 7 prior to the HVC instruction. The return values are updated with
- * the content from register 0 to 3 on return from the HVC instruction.
+ * the content from register 0 to 3 on return from the HVC instruction.  An
+ * optional quirk structure provides vendor specific behavior.
  */
-asmlinkage void arm_smccc_hvc(unsigned long a0, unsigned long a1,
+asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
 			unsigned long a2, unsigned long a3, unsigned long a4,
 			unsigned long a5, unsigned long a6, unsigned long a7,
-			struct arm_smccc_res *res);
+			struct arm_smccc_res *res, struct arm_smccc_quirk *quirk);
 
+#define arm_smccc_smc(...) __arm_smccc_smc(__VA_ARGS__, NULL)
+
+#define arm_smccc_smc_quirk(...) __arm_smccc_smc(__VA_ARGS__)
+
+#define arm_smccc_hvc(...) __arm_smccc_hvc(__VA_ARGS__, NULL)
+
+#define arm_smccc_hvc_quirk(...) __arm_smccc_hvc(__VA_ARGS__)
+
+#endif /*__ASSEMBLY__*/
 #endif /*__LINUX_ARM_SMCCC_H*/
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/blkdev.h linux-libre-4.9.52-gnu/include/linux/blkdev.h
--- linux-libre-4.9-gnu/include/linux/blkdev.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/blkdev.h	2017-09-27 08:40:05.000000000 -0400
@@ -1057,7 +1057,7 @@ static inline int blk_pre_runtime_suspen
 static inline void blk_post_runtime_suspend(struct request_queue *q, int err) {}
 static inline void blk_pre_runtime_resume(struct request_queue *q) {}
 static inline void blk_post_runtime_resume(struct request_queue *q, int err) {}
-extern inline void blk_set_runtime_active(struct request_queue *q) {}
+static inline void blk_set_runtime_active(struct request_queue *q) {}
 #endif
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/bpf.h linux-libre-4.9.52-gnu/include/linux/bpf.h
--- linux-libre-4.9-gnu/include/linux/bpf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/bpf.h	2017-09-27 08:40:05.000000000 -0400
@@ -243,6 +243,8 @@ struct bpf_map *bpf_map_inc(struct bpf_m
 void bpf_map_put_with_uref(struct bpf_map *map);
 void bpf_map_put(struct bpf_map *map);
 int bpf_map_precharge_memlock(u32 pages);
+void *bpf_map_area_alloc(size_t size);
+void bpf_map_area_free(void *base);
 
 extern int sysctl_unprivileged_bpf_disabled;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/bpf_verifier.h linux-libre-4.9.52-gnu/include/linux/bpf_verifier.h
--- linux-libre-4.9-gnu/include/linux/bpf_verifier.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/bpf_verifier.h	2017-09-27 08:40:05.000000000 -0400
@@ -18,19 +18,12 @@
 
 struct bpf_reg_state {
 	enum bpf_reg_type type;
-	/*
-	 * Used to determine if any memory access using this register will
-	 * result in a bad access.
-	 */
-	s64 min_value;
-	u64 max_value;
 	union {
 		/* valid when type == CONST_IMM | PTR_TO_STACK | UNKNOWN_VALUE */
 		s64 imm;
 
 		/* valid when type == PTR_TO_PACKET* */
 		struct {
-			u32 id;
 			u16 off;
 			u16 range;
 		};
@@ -40,6 +33,14 @@ struct bpf_reg_state {
 		 */
 		struct bpf_map *map_ptr;
 	};
+	u32 id;
+	/* Used to determine if any memory access using this register will
+	 * result in a bad access. These two fields must be last.
+	 * See states_equal()
+	 */
+	s64 min_value;
+	u64 max_value;
+	bool value_from_signed;
 };
 
 enum bpf_stack_slot_type {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/can/core.h linux-libre-4.9.52-gnu/include/linux/can/core.h
--- linux-libre-4.9-gnu/include/linux/can/core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/can/core.h	2017-09-27 08:40:05.000000000 -0400
@@ -45,10 +45,9 @@ struct can_proto {
 extern int  can_proto_register(const struct can_proto *cp);
 extern void can_proto_unregister(const struct can_proto *cp);
 
-extern int  can_rx_register(struct net_device *dev, canid_t can_id,
-			    canid_t mask,
-			    void (*func)(struct sk_buff *, void *),
-			    void *data, char *ident);
+int can_rx_register(struct net_device *dev, canid_t can_id, canid_t mask,
+		    void (*func)(struct sk_buff *, void *),
+		    void *data, char *ident, struct sock *sk);
 
 extern void can_rx_unregister(struct net_device *dev, canid_t can_id,
 			      canid_t mask,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/capability.h linux-libre-4.9.52-gnu/include/linux/capability.h
--- linux-libre-4.9-gnu/include/linux/capability.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/capability.h	2017-09-27 08:40:05.000000000 -0400
@@ -240,8 +240,10 @@ static inline bool ns_capable_noaudit(st
 	return true;
 }
 #endif /* CONFIG_MULTIUSER */
+extern bool privileged_wrt_inode_uidgid(struct user_namespace *ns, const struct inode *inode);
 extern bool capable_wrt_inode_uidgid(const struct inode *inode, int cap);
 extern bool file_ns_capable(const struct file *file, struct user_namespace *ns, int cap);
+extern bool ptracer_capable(struct task_struct *tsk, struct user_namespace *ns);
 
 /* audit system wants to get cap info from files as well */
 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/ccp.h linux-libre-4.9.52-gnu/include/linux/ccp.h
--- linux-libre-4.9-gnu/include/linux/ccp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/ccp.h	2017-09-27 08:40:05.000000000 -0400
@@ -1,7 +1,7 @@
 /*
  * AMD Cryptographic Coprocessor (CCP) driver
  *
- * Copyright (C) 2013,2016 Advanced Micro Devices, Inc.
+ * Copyright (C) 2013,2017 Advanced Micro Devices, Inc.
  *
  * Author: Tom Lendacky <thomas.lendacky@amd.com>
  * Author: Gary R Hook <gary.hook@amd.com>
@@ -222,6 +222,7 @@ enum ccp_xts_aes_unit_size {
  * AES operation the new IV overwrites the old IV.
  */
 struct ccp_xts_aes_engine {
+	enum ccp_aes_type type;
 	enum ccp_aes_action action;
 	enum ccp_xts_aes_unit_size unit_size;
 
@@ -556,7 +557,7 @@ enum ccp_engine {
  * struct ccp_cmd - CPP operation request
  * @entry: list element (ccp driver use only)
  * @work: work element used for callbacks (ccp driver use only)
- * @ccp: CCP device to be run on (ccp driver use only)
+ * @ccp: CCP device to be run on
  * @ret: operation return code (ccp driver use only)
  * @flags: cmd processing flags
  * @engine: CCP operation to perform
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/ceph/osdmap.h linux-libre-4.9.52-gnu/include/linux/ceph/osdmap.h
--- linux-libre-4.9-gnu/include/linux/ceph/osdmap.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/ceph/osdmap.h	2017-09-27 08:40:05.000000000 -0400
@@ -57,7 +57,7 @@ static inline bool ceph_can_shift_osds(s
 	case CEPH_POOL_TYPE_EC:
 		return false;
 	default:
-		BUG_ON(1);
+		BUG();
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/cgroup-defs.h linux-libre-4.9.52-gnu/include/linux/cgroup-defs.h
--- linux-libre-4.9-gnu/include/linux/cgroup-defs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/cgroup-defs.h	2017-09-27 08:40:05.000000000 -0400
@@ -46,6 +46,7 @@ enum {
 	CSS_ONLINE	= (1 << 1), /* between ->css_online() and ->css_offline() */
 	CSS_RELEASED	= (1 << 2), /* refcnt reached zero, released */
 	CSS_VISIBLE	= (1 << 3), /* css is visible to userland */
+	CSS_DYING	= (1 << 4), /* css is dying */
 };
 
 /* bits in struct cgroup flags field */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/cgroup.h linux-libre-4.9.52-gnu/include/linux/cgroup.h
--- linux-libre-4.9-gnu/include/linux/cgroup.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/cgroup.h	2017-09-27 08:40:05.000000000 -0400
@@ -344,6 +344,26 @@ static inline bool css_tryget_online(str
 }
 
 /**
+ * css_is_dying - test whether the specified css is dying
+ * @css: target css
+ *
+ * Test whether @css is in the process of offlining or already offline.  In
+ * most cases, ->css_online() and ->css_offline() callbacks should be
+ * enough; however, the actual offline operations are RCU delayed and this
+ * test returns %true also when @css is scheduled to be offlined.
+ *
+ * This is useful, for example, when the use case requires synchronous
+ * behavior with respect to cgroup removal.  cgroup removal schedules css
+ * offlining but the css can seem alive while the operation is being
+ * delayed.  If the delay affects user visible semantics, this test can be
+ * used to resolve the situation.
+ */
+static inline bool css_is_dying(struct cgroup_subsys_state *css)
+{
+	return !(css->flags & CSS_NO_REF) && percpu_ref_is_dying(&css->refcnt);
+}
+
+/**
  * css_put - put a css reference
  * @css: target css
  *
@@ -570,6 +590,25 @@ static inline void pr_cont_cgroup_path(s
 	pr_cont_kernfs_path(cgrp->kn);
 }
 
+static inline void cgroup_init_kthreadd(void)
+{
+	/*
+	 * kthreadd is inherited by all kthreads, keep it in the root so
+	 * that the new kthreads are guaranteed to stay in the root until
+	 * initialization is finished.
+	 */
+	current->no_cgroup_migration = 1;
+}
+
+static inline void cgroup_kthread_ready(void)
+{
+	/*
+	 * This kthread finished initialization.  The creator should have
+	 * set PF_NO_SETAFFINITY if this kthread should stay in the root.
+	 */
+	current->no_cgroup_migration = 0;
+}
+
 #else /* !CONFIG_CGROUPS */
 
 struct cgroup_subsys_state;
@@ -590,6 +629,8 @@ static inline void cgroup_free(struct ta
 
 static inline int cgroup_init_early(void) { return 0; }
 static inline int cgroup_init(void) { return 0; }
+static inline void cgroup_init_kthreadd(void) {}
+static inline void cgroup_kthread_ready(void) {}
 
 static inline bool task_under_cgroup_hierarchy(struct task_struct *task,
 					       struct cgroup *ancestor)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/compat.h linux-libre-4.9.52-gnu/include/linux/compat.h
--- linux-libre-4.9-gnu/include/linux/compat.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/compat.h	2017-09-27 08:40:05.000000000 -0400
@@ -711,8 +711,10 @@ int __compat_save_altstack(compat_stack_
 	compat_stack_t __user *__uss = uss; \
 	struct task_struct *t = current; \
 	put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \
-	put_user_ex(sas_ss_flags(sp), &__uss->ss_flags); \
+	put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \
 	put_user_ex(t->sas_ss_size, &__uss->ss_size); \
+	if (t->sas_ss_flags & SS_AUTODISARM) \
+		sas_ss_reset(t); \
 } while (0);
 
 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/coredump.h linux-libre-4.9.52-gnu/include/linux/coredump.h
--- linux-libre-4.9-gnu/include/linux/coredump.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/coredump.h	2017-09-27 08:40:05.000000000 -0400
@@ -14,6 +14,7 @@ struct coredump_params;
 extern int dump_skip(struct coredump_params *cprm, size_t nr);
 extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
 extern int dump_align(struct coredump_params *cprm, int align);
+extern void dump_truncate(struct coredump_params *cprm);
 #ifdef CONFIG_COREDUMP
 extern void do_coredump(const siginfo_t *siginfo);
 #else
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/cpu.h linux-libre-4.9.52-gnu/include/linux/cpu.h
--- linux-libre-4.9-gnu/include/linux/cpu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/cpu.h	2017-09-27 08:40:05.000000000 -0400
@@ -93,22 +93,16 @@ extern bool cpuhp_tasks_frozen;
 		{ .notifier_call = fn, .priority = pri };	\
 	__register_cpu_notifier(&fn##_nb);			\
 }
-#else /* #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) */
-#define cpu_notifier(fn, pri)	do { (void)(fn); } while (0)
-#define __cpu_notifier(fn, pri)	do { (void)(fn); } while (0)
-#endif /* #else #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) */
 
-#ifdef CONFIG_HOTPLUG_CPU
 extern int register_cpu_notifier(struct notifier_block *nb);
 extern int __register_cpu_notifier(struct notifier_block *nb);
 extern void unregister_cpu_notifier(struct notifier_block *nb);
 extern void __unregister_cpu_notifier(struct notifier_block *nb);
-#else
 
-#ifndef MODULE
-extern int register_cpu_notifier(struct notifier_block *nb);
-extern int __register_cpu_notifier(struct notifier_block *nb);
-#else
+#else /* #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) */
+#define cpu_notifier(fn, pri)	do { (void)(fn); } while (0)
+#define __cpu_notifier(fn, pri)	do { (void)(fn); } while (0)
+
 static inline int register_cpu_notifier(struct notifier_block *nb)
 {
 	return 0;
@@ -118,7 +112,6 @@ static inline int __register_cpu_notifie
 {
 	return 0;
 }
-#endif
 
 static inline void unregister_cpu_notifier(struct notifier_block *nb)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/cpuhotplug.h linux-libre-4.9.52-gnu/include/linux/cpuhotplug.h
--- linux-libre-4.9-gnu/include/linux/cpuhotplug.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/cpuhotplug.h	2017-09-27 08:40:05.000000000 -0400
@@ -10,7 +10,6 @@ enum cpuhp_state {
 	CPUHP_PERF_X86_PREPARE,
 	CPUHP_PERF_X86_UNCORE_PREP,
 	CPUHP_PERF_X86_AMD_UNCORE_PREP,
-	CPUHP_PERF_X86_RAPL_PREP,
 	CPUHP_PERF_BFIN,
 	CPUHP_PERF_POWER,
 	CPUHP_PERF_SUPERH,
@@ -80,7 +79,6 @@ enum cpuhp_state {
 	CPUHP_AP_ARM_L2X0_STARTING,
 	CPUHP_AP_ARM_ARCH_TIMER_STARTING,
 	CPUHP_AP_ARM_GLOBAL_TIMER_STARTING,
-	CPUHP_AP_DUMMY_TIMER_STARTING,
 	CPUHP_AP_JCORE_TIMER_STARTING,
 	CPUHP_AP_EXYNOS4_MCT_TIMER_STARTING,
 	CPUHP_AP_ARM_TWD_STARTING,
@@ -94,6 +92,8 @@ enum cpuhp_state {
 	CPUHP_AP_KVM_ARM_VGIC_INIT_STARTING,
 	CPUHP_AP_KVM_ARM_VGIC_STARTING,
 	CPUHP_AP_KVM_ARM_TIMER_STARTING,
+	/* Must be the last timer callback */
+	CPUHP_AP_DUMMY_TIMER_STARTING,
 	CPUHP_AP_ARM_XEN_STARTING,
 	CPUHP_AP_ARM_CORESIGHT_STARTING,
 	CPUHP_AP_ARM_CORESIGHT4_STARTING,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/cpumask.h linux-libre-4.9.52-gnu/include/linux/cpumask.h
--- linux-libre-4.9-gnu/include/linux/cpumask.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/cpumask.h	2017-09-27 08:40:05.000000000 -0400
@@ -236,6 +236,23 @@ unsigned int cpumask_local_spread(unsign
 		(cpu) = cpumask_next_zero((cpu), (mask)),	\
 		(cpu) < nr_cpu_ids;)
 
+extern int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap);
+
+/**
+ * for_each_cpu_wrap - iterate over every cpu in a mask, starting at a specified location
+ * @cpu: the (optionally unsigned) integer iterator
+ * @mask: the cpumask poiter
+ * @start: the start location
+ *
+ * The implementation does not assume any bit in @mask is set (including @start).
+ *
+ * After the loop, cpu is >= nr_cpu_ids.
+ */
+#define for_each_cpu_wrap(cpu, mask, start)					\
+	for ((cpu) = cpumask_next_wrap((start)-1, (mask), (start), false);	\
+	     (cpu) < nr_cpumask_bits;						\
+	     (cpu) = cpumask_next_wrap((cpu), (mask), (start), true))
+
 /**
  * for_each_cpu_and - iterate over every cpu in both masks
  * @cpu: the (optionally unsigned) integer iterator
@@ -560,7 +577,7 @@ static inline void cpumask_copy(struct c
 static inline int cpumask_parse_user(const char __user *buf, int len,
 				     struct cpumask *dstp)
 {
-	return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpu_ids);
+	return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
 }
 
 /**
@@ -575,7 +592,7 @@ static inline int cpumask_parselist_user
 				     struct cpumask *dstp)
 {
 	return bitmap_parselist_user(buf, len, cpumask_bits(dstp),
-				     nr_cpu_ids);
+				     nr_cpumask_bits);
 }
 
 /**
@@ -590,7 +607,7 @@ static inline int cpumask_parse(const ch
 	char *nl = strchr(buf, '\n');
 	unsigned int len = nl ? (unsigned int)(nl - buf) : strlen(buf);
 
-	return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpu_ids);
+	return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
 }
 
 /**
@@ -602,7 +619,7 @@ static inline int cpumask_parse(const ch
  */
 static inline int cpulist_parse(const char *buf, struct cpumask *dstp)
 {
-	return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpu_ids);
+	return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpumask_bits);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/cpuset.h linux-libre-4.9.52-gnu/include/linux/cpuset.h
--- linux-libre-4.9-gnu/include/linux/cpuset.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/cpuset.h	2017-09-27 08:40:05.000000000 -0400
@@ -16,6 +16,19 @@
 
 #ifdef CONFIG_CPUSETS
 
+/*
+ * Static branch rewrites can happen in an arbitrary order for a given
+ * key. In code paths where we need to loop with read_mems_allowed_begin() and
+ * read_mems_allowed_retry() to get a consistent view of mems_allowed, we need
+ * to ensure that begin() always gets rewritten before retry() in the
+ * disabled -> enabled transition. If not, then if local irqs are disabled
+ * around the loop, we can deadlock since retry() would always be
+ * comparing the latest value of the mems_allowed seqcount against 0 as
+ * begin() still would see cpusets_enabled() as false. The enabled -> disabled
+ * transition should happen in reverse order for the same reasons (want to stop
+ * looking at real value of mems_allowed.sequence in retry() first).
+ */
+extern struct static_key_false cpusets_pre_enable_key;
 extern struct static_key_false cpusets_enabled_key;
 static inline bool cpusets_enabled(void)
 {
@@ -30,12 +43,14 @@ static inline int nr_cpusets(void)
 
 static inline void cpuset_inc(void)
 {
+	static_branch_inc(&cpusets_pre_enable_key);
 	static_branch_inc(&cpusets_enabled_key);
 }
 
 static inline void cpuset_dec(void)
 {
 	static_branch_dec(&cpusets_enabled_key);
+	static_branch_dec(&cpusets_pre_enable_key);
 }
 
 extern int cpuset_init(void);
@@ -113,7 +128,7 @@ extern void cpuset_print_current_mems_al
  */
 static inline unsigned int read_mems_allowed_begin(void)
 {
-	if (!cpusets_enabled())
+	if (!static_branch_unlikely(&cpusets_pre_enable_key))
 		return 0;
 
 	return read_seqcount_begin(&current->mems_allowed_seq);
@@ -127,7 +142,7 @@ static inline unsigned int read_mems_all
  */
 static inline bool read_mems_allowed_retry(unsigned int seq)
 {
-	if (!cpusets_enabled())
+	if (!static_branch_unlikely(&cpusets_enabled_key))
 		return false;
 
 	return read_seqcount_retry(&current->mems_allowed_seq, seq);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/dcache.h linux-libre-4.9.52-gnu/include/linux/dcache.h
--- linux-libre-4.9-gnu/include/linux/dcache.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/dcache.h	2017-09-27 08:40:05.000000000 -0400
@@ -590,5 +590,11 @@ static inline struct inode *d_real_inode
 	return d_backing_inode(d_real((struct dentry *) dentry, NULL, 0));
 }
 
+struct name_snapshot {
+	const char *name;
+	char inline_name[DNAME_INLINE_LEN];
+};
+void take_dentry_name_snapshot(struct name_snapshot *, struct dentry *);
+void release_dentry_name_snapshot(struct name_snapshot *);
 
 #endif	/* __LINUX_DCACHE_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/dccp.h linux-libre-4.9.52-gnu/include/linux/dccp.h
--- linux-libre-4.9-gnu/include/linux/dccp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/dccp.h	2017-09-27 08:40:05.000000000 -0400
@@ -163,6 +163,7 @@ struct dccp_request_sock {
 	__u64			 dreq_isr;
 	__u64			 dreq_gsr;
 	__be32			 dreq_service;
+	spinlock_t		 dreq_lock;
 	struct list_head	 dreq_featneg;
 	__u32			 dreq_timestamp_echo;
 	__u32			 dreq_timestamp_time;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/debugfs.h linux-libre-4.9.52-gnu/include/linux/debugfs.h
--- linux-libre-4.9-gnu/include/linux/debugfs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/debugfs.h	2017-09-27 08:40:05.000000000 -0400
@@ -62,6 +62,21 @@ static inline const struct file_operatio
 	return filp->f_path.dentry->d_fsdata;
 }
 
+#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt)		\
+static int __fops ## _open(struct inode *inode, struct file *file)	\
+{									\
+	__simple_attr_check_format(__fmt, 0ull);			\
+	return simple_attr_open(inode, file, __get, __set, __fmt);	\
+}									\
+static const struct file_operations __fops = {				\
+	.owner	 = THIS_MODULE,						\
+	.open	 = __fops ## _open,					\
+	.release = simple_attr_release,					\
+	.read	 = debugfs_attr_read,					\
+	.write	 = debugfs_attr_write,					\
+	.llseek  = generic_file_llseek,					\
+}
+
 #if defined(CONFIG_DEBUG_FS)
 
 struct dentry *debugfs_create_file(const char *name, umode_t mode,
@@ -81,9 +96,10 @@ struct dentry *debugfs_create_dir(const
 struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
 				      const char *dest);
 
+typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);
 struct dentry *debugfs_create_automount(const char *name,
 					struct dentry *parent,
-					struct vfsmount *(*f)(void *),
+					debugfs_automount_t f,
 					void *data);
 
 void debugfs_remove(struct dentry *dentry);
@@ -99,21 +115,6 @@ ssize_t debugfs_attr_read(struct file *f
 ssize_t debugfs_attr_write(struct file *file, const char __user *buf,
 			size_t len, loff_t *ppos);
 
-#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt)		\
-static int __fops ## _open(struct inode *inode, struct file *file)	\
-{									\
-	__simple_attr_check_format(__fmt, 0ull);			\
-	return simple_attr_open(inode, file, __get, __set, __fmt);	\
-}									\
-static const struct file_operations __fops = {				\
-	.owner	 = THIS_MODULE,					\
-	.open	 = __fops ## _open,					\
-	.release = simple_attr_release,				\
-	.read	 = debugfs_attr_read,					\
-	.write	 = debugfs_attr_write,					\
-	.llseek  = generic_file_llseek,				\
-}
-
 struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                 struct dentry *new_dir, const char *new_name);
 
@@ -233,8 +234,18 @@ static inline void debugfs_use_file_fini
 	__releases(&debugfs_srcu)
 { }
 
-#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt)	\
-	static const struct file_operations __fops = { 0 }
+static inline ssize_t debugfs_attr_read(struct file *file, char __user *buf,
+					size_t len, loff_t *ppos)
+{
+	return -ENODEV;
+}
+
+static inline ssize_t debugfs_attr_write(struct file *file,
+					const char __user *buf,
+					size_t len, loff_t *ppos)
+{
+	return -ENODEV;
+}
 
 static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                 struct dentry *new_dir, char *new_name)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/devfreq.h linux-libre-4.9.52-gnu/include/linux/devfreq.h
--- linux-libre-4.9-gnu/include/linux/devfreq.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/devfreq.h	2017-09-27 08:40:05.000000000 -0400
@@ -104,6 +104,8 @@ struct devfreq_dev_profile {
  * struct devfreq_governor - Devfreq policy governor
  * @node:		list node - contains registered devfreq governors
  * @name:		Governor's name
+ * @immutable:		Immutable flag for governor. If the value is 1,
+ *			this govenror is never changeable to other governor.
  * @get_target_freq:	Returns desired operating frequency for the device.
  *			Basically, get_target_freq will run
  *			devfreq_dev_profile.get_dev_status() to get the
@@ -121,6 +123,7 @@ struct devfreq_governor {
 	struct list_head node;
 
 	const char name[DEVFREQ_NAME_LEN];
+	const unsigned int immutable;
 	int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
 	int (*event_handler)(struct devfreq *devfreq,
 				unsigned int event, void *data);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/device.h linux-libre-4.9.52-gnu/include/linux/device.h
--- linux-libre-4.9-gnu/include/linux/device.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/device.h	2017-09-27 08:40:05.000000000 -0400
@@ -373,6 +373,7 @@ int subsys_virtual_register(struct bus_t
  * @suspend:	Used to put the device to sleep mode, usually to a low power
  *		state.
  * @resume:	Used to bring the device from the sleep mode.
+ * @shutdown:	Called at shut-down time to quiesce the device.
  * @ns_type:	Callbacks so sysfs can detemine namespaces.
  * @namespace:	Namespace of the device belongs to this class.
  * @pm:		The default device power management operations of this class.
@@ -401,6 +402,7 @@ struct class {
 
 	int (*suspend)(struct device *dev, pm_message_t state);
 	int (*resume)(struct device *dev);
+	int (*shutdown)(struct device *dev);
 
 	const struct kobj_ns_type_operations *ns_type;
 	const void *(*namespace)(struct device *dev);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/efi.h linux-libre-4.9.52-gnu/include/linux/efi.h
--- linux-libre-4.9-gnu/include/linux/efi.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/efi.h	2017-09-27 08:40:05.000000000 -0400
@@ -103,6 +103,7 @@ typedef	struct {
 
 #define EFI_PAGE_SHIFT		12
 #define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)
+#define EFI_PAGES_MAX		(U64_MAX >> EFI_PAGE_SHIFT)
 
 typedef struct {
 	u32 type;
@@ -930,6 +931,7 @@ static inline efi_status_t efi_query_var
 #endif
 extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr);
 
+extern phys_addr_t __init efi_memmap_alloc(unsigned int num_entries);
 extern int __init efi_memmap_init_early(struct efi_memory_map_data *data);
 extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size);
 extern void __init efi_memmap_unmap(void);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/f2fs_fs.h linux-libre-4.9.52-gnu/include/linux/f2fs_fs.h
--- linux-libre-4.9-gnu/include/linux/f2fs_fs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/f2fs_fs.h	2017-09-27 08:40:05.000000000 -0400
@@ -286,6 +286,12 @@ struct f2fs_nat_block {
 #define SIT_ENTRY_PER_BLOCK (PAGE_SIZE / sizeof(struct f2fs_sit_entry))
 
 /*
+ * F2FS uses 4 bytes to represent block address. As a result, supported size of
+ * disk is 16 TB and it equals to 16 * 1024 * 1024 / 2 segments.
+ */
+#define F2FS_MAX_SEGMENT       ((16 * 1024 * 1024) / 2)
+
+/*
  * Note that f2fs_sit_entry->vblocks has the following bit-field information.
  * [15:10] : allocation type such as CURSEG_XXXX_TYPE
  * [9:0] : valid block count
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/fcntl.h linux-libre-4.9.52-gnu/include/linux/fcntl.h
--- linux-libre-4.9-gnu/include/linux/fcntl.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/fcntl.h	2017-09-27 08:40:05.000000000 -0400
@@ -3,6 +3,12 @@
 
 #include <uapi/linux/fcntl.h>
 
+/* list of all valid flags for the open/openat flags argument: */
+#define VALID_OPEN_FLAGS \
+	(O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \
+	 O_APPEND | O_NDELAY | O_NONBLOCK | O_NDELAY | __O_SYNC | O_DSYNC | \
+	 FASYNC	| O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \
+	 O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE)
 
 #ifndef force_o_largefile
 #define force_o_largefile() (BITS_PER_LONG != 32)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/fscache-cache.h linux-libre-4.9.52-gnu/include/linux/fscache-cache.h
--- linux-libre-4.9-gnu/include/linux/fscache-cache.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/fscache-cache.h	2017-09-27 08:40:05.000000000 -0400
@@ -360,6 +360,7 @@ struct fscache_object {
 #define FSCACHE_OBJECT_IS_AVAILABLE	5	/* T if object has become active */
 #define FSCACHE_OBJECT_RETIRED		6	/* T if object was retired on relinquishment */
 #define FSCACHE_OBJECT_KILLED_BY_CACHE	7	/* T if object was killed by the cache */
+#define FSCACHE_OBJECT_RUN_AFTER_DEAD	8	/* T if object has been dispatched after death */
 
 	struct list_head	cache_link;	/* link in cache->object_list */
 	struct hlist_node	cookie_link;	/* link in cookie->backing_objects */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/fscrypto.h linux-libre-4.9.52-gnu/include/linux/fscrypto.h
--- linux-libre-4.9-gnu/include/linux/fscrypto.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/fscrypto.h	2017-09-27 08:40:05.000000000 -0400
@@ -79,7 +79,6 @@ struct fscrypt_info {
 	u8 ci_filename_mode;
 	u8 ci_flags;
 	struct crypto_skcipher *ci_ctfm;
-	struct key *ci_keyring_key;
 	u8 ci_master_key[FS_KEY_DESCRIPTOR_SIZE];
 };
 
@@ -256,7 +255,6 @@ extern int fscrypt_has_permitted_context
 extern int fscrypt_inherit_context(struct inode *, struct inode *,
 					void *, bool);
 /* keyinfo.c */
-extern int get_crypt_info(struct inode *);
 extern int fscrypt_get_encryption_info(struct inode *);
 extern void fscrypt_put_encryption_info(struct inode *, struct fscrypt_info *);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/fs.h linux-libre-4.9.52-gnu/include/linux/fs.h
--- linux-libre-4.9-gnu/include/linux/fs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/fs.h	2017-09-27 08:40:05.000000000 -0400
@@ -705,6 +705,11 @@ struct inode {
 	void			*i_private; /* fs or device private pointer */
 };
 
+static inline unsigned int i_blocksize(const struct inode *node)
+{
+	return (1 << node->i_blkbits);
+}
+
 static inline int inode_unhashed(struct inode *inode)
 {
 	return hlist_unhashed(&inode->i_hash);
@@ -936,9 +941,9 @@ static inline struct file *get_file(stru
 /* Page cache limit. The filesystems should put that into their s_maxbytes 
    limits, otherwise bad things can happen in VM. */ 
 #if BITS_PER_LONG==32
-#define MAX_LFS_FILESIZE	(((loff_t)PAGE_SIZE << (BITS_PER_LONG-1))-1)
+#define MAX_LFS_FILESIZE	((loff_t)ULONG_MAX << PAGE_SHIFT)
 #elif BITS_PER_LONG==64
-#define MAX_LFS_FILESIZE 	((loff_t)0x7fffffffffffffffLL)
+#define MAX_LFS_FILESIZE 	((loff_t)LLONG_MAX)
 #endif
 
 #define FL_POSIX	1
@@ -2755,6 +2760,7 @@ static inline void lockdep_annotate_inod
 #endif
 extern void unlock_new_inode(struct inode *);
 extern unsigned int get_next_ino(void);
+extern void evict_inodes(struct super_block *sb);
 
 extern void __iget(struct inode * inode);
 extern void iget_failed(struct inode *);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/fsl_ifc.h linux-libre-4.9.52-gnu/include/linux/fsl_ifc.h
--- linux-libre-4.9-gnu/include/linux/fsl_ifc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/fsl_ifc.h	2017-09-27 08:40:05.000000000 -0400
@@ -733,8 +733,12 @@ struct fsl_ifc_nand {
 	__be32 nand_erattr1;
 	u32 res19[0x10];
 	__be32 nand_fsr;
-	u32 res20[0x3];
-	__be32 nand_eccstat[6];
+	u32 res20;
+	/* The V1 nand_eccstat is actually 4 words that overlaps the
+	 * V2 nand_eccstat.
+	 */
+	__be32 v1_nand_eccstat[2];
+	__be32 v2_nand_eccstat[6];
 	u32 res21[0x1c];
 	__be32 nanndcr;
 	u32 res22[0x2];
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/fsnotify.h linux-libre-4.9.52-gnu/include/linux/fsnotify.h
--- linux-libre-4.9-gnu/include/linux/fsnotify.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/fsnotify.h	2017-09-27 08:40:05.000000000 -0400
@@ -293,35 +293,4 @@ static inline void fsnotify_change(struc
 	}
 }
 
-#if defined(CONFIG_FSNOTIFY)	/* notify helpers */
-
-/*
- * fsnotify_oldname_init - save off the old filename before we change it
- */
-static inline const unsigned char *fsnotify_oldname_init(const unsigned char *name)
-{
-	return kstrdup(name, GFP_KERNEL);
-}
-
-/*
- * fsnotify_oldname_free - free the name we got from fsnotify_oldname_init
- */
-static inline void fsnotify_oldname_free(const unsigned char *old_name)
-{
-	kfree(old_name);
-}
-
-#else	/* CONFIG_FSNOTIFY */
-
-static inline const char *fsnotify_oldname_init(const unsigned char *name)
-{
-	return NULL;
-}
-
-static inline void fsnotify_oldname_free(const unsigned char *old_name)
-{
-}
-
-#endif	/*  CONFIG_FSNOTIFY */
-
 #endif	/* _LINUX_FS_NOTIFY_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/genhd.h linux-libre-4.9.52-gnu/include/linux/genhd.h
--- linux-libre-4.9-gnu/include/linux/genhd.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/genhd.h	2017-09-27 08:40:05.000000000 -0400
@@ -731,11 +731,9 @@ static inline void part_nr_sects_write(s
 #if defined(CONFIG_BLK_DEV_INTEGRITY)
 extern void blk_integrity_add(struct gendisk *);
 extern void blk_integrity_del(struct gendisk *);
-extern void blk_integrity_revalidate(struct gendisk *);
 #else	/* CONFIG_BLK_DEV_INTEGRITY */
 static inline void blk_integrity_add(struct gendisk *disk) { }
 static inline void blk_integrity_del(struct gendisk *disk) { }
-static inline void blk_integrity_revalidate(struct gendisk *disk) { }
 #endif	/* CONFIG_BLK_DEV_INTEGRITY */
 
 #else /* CONFIG_BLOCK */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/hid-sensor-hub.h linux-libre-4.9.52-gnu/include/linux/hid-sensor-hub.h
--- linux-libre-4.9-gnu/include/linux/hid-sensor-hub.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/hid-sensor-hub.h	2017-09-27 08:40:05.000000000 -0400
@@ -231,6 +231,8 @@ struct hid_sensor_common {
 	unsigned usage_id;
 	atomic_t data_ready;
 	atomic_t user_requested_state;
+	int poll_interval;
+	int raw_hystersis;
 	struct iio_trigger *trigger;
 	struct hid_sensor_hub_attribute_info poll;
 	struct hid_sensor_hub_attribute_info report_state;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/hyperv.h linux-libre-4.9.52-gnu/include/linux/hyperv.h
--- linux-libre-4.9-gnu/include/linux/hyperv.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/hyperv.h	2017-09-27 08:40:05.000000000 -0400
@@ -128,6 +128,7 @@ struct hv_ring_buffer_info {
 	u32 ring_data_startoffset;
 	u32 priv_write_index;
 	u32 priv_read_index;
+	u32 cached_read_index;
 };
 
 /*
@@ -180,6 +181,19 @@ static inline u32 hv_get_bytes_to_write(
 	return write;
 }
 
+static inline u32 hv_get_cached_bytes_to_write(
+	const struct hv_ring_buffer_info *rbi)
+{
+	u32 read_loc, write_loc, dsize, write;
+
+	dsize = rbi->ring_datasize;
+	read_loc = rbi->cached_read_index;
+	write_loc = rbi->ring_buffer->write_index;
+
+	write = write_loc >= read_loc ? dsize - (write_loc - read_loc) :
+		read_loc - write_loc;
+	return write;
+}
 /*
  * VMBUS version is 32 bit entity broken up into
  * two 16 bit quantities: major_number. minor_number.
@@ -627,6 +641,7 @@ struct vmbus_channel_msginfo {
 
 	/* Synchronize the request/response if needed */
 	struct completion  waitevent;
+	struct vmbus_channel *waiting_channel;
 	union {
 		struct vmbus_channel_version_supported version_supported;
 		struct vmbus_channel_open_result open_result;
@@ -1447,6 +1462,7 @@ void hv_event_tasklet_enable(struct vmbu
 
 void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid);
 
+void vmbus_setevent(struct vmbus_channel *channel);
 /*
  * Negotiated version with the Host.
  */
@@ -1479,10 +1495,11 @@ hv_get_ring_buffer(struct hv_ring_buffer
  *    there is room for the producer to send the pending packet.
  */
 
-static inline  bool hv_need_to_signal_on_read(struct hv_ring_buffer_info *rbi)
+static inline  void hv_signal_on_read(struct vmbus_channel *channel)
 {
-	u32 cur_write_sz;
+	u32 cur_write_sz, cached_write_sz;
 	u32 pending_sz;
+	struct hv_ring_buffer_info *rbi = &channel->inbound;
 
 	/*
 	 * Issue a full memory barrier before making the signaling decision.
@@ -1500,14 +1517,26 @@ static inline  bool hv_need_to_signal_on
 	pending_sz = READ_ONCE(rbi->ring_buffer->pending_send_sz);
 	/* If the other end is not blocked on write don't bother. */
 	if (pending_sz == 0)
-		return false;
+		return;
 
 	cur_write_sz = hv_get_bytes_to_write(rbi);
 
-	if (cur_write_sz >= pending_sz)
-		return true;
+	if (cur_write_sz < pending_sz)
+		return;
 
-	return false;
+	cached_write_sz = hv_get_cached_bytes_to_write(rbi);
+	if (cached_write_sz < pending_sz)
+		vmbus_setevent(channel);
+
+	return;
+}
+
+static inline void
+init_cached_read_index(struct vmbus_channel *channel)
+{
+	struct hv_ring_buffer_info *rbi = &channel->inbound;
+
+	rbi->cached_read_index = rbi->ring_buffer->read_index;
 }
 
 /*
@@ -1519,31 +1548,23 @@ static inline struct vmpacket_descriptor
 get_next_pkt_raw(struct vmbus_channel *channel)
 {
 	struct hv_ring_buffer_info *ring_info = &channel->inbound;
-	u32 read_loc = ring_info->priv_read_index;
+	u32 priv_read_loc = ring_info->priv_read_index;
 	void *ring_buffer = hv_get_ring_buffer(ring_info);
-	struct vmpacket_descriptor *cur_desc;
-	u32 packetlen;
 	u32 dsize = ring_info->ring_datasize;
-	u32 delta = read_loc - ring_info->ring_buffer->read_index;
+	/*
+	 * delta is the difference between what is available to read and
+	 * what was already consumed in place. We commit read index after
+	 * the whole batch is processed.
+	 */
+	u32 delta = priv_read_loc >= ring_info->ring_buffer->read_index ?
+		priv_read_loc - ring_info->ring_buffer->read_index :
+		(dsize - ring_info->ring_buffer->read_index) + priv_read_loc;
 	u32 bytes_avail_toread = (hv_get_bytes_to_read(ring_info) - delta);
 
 	if (bytes_avail_toread < sizeof(struct vmpacket_descriptor))
 		return NULL;
 
-	if ((read_loc + sizeof(*cur_desc)) > dsize)
-		return NULL;
-
-	cur_desc = ring_buffer + read_loc;
-	packetlen = cur_desc->len8 << 3;
-
-	/*
-	 * If the packet under consideration is wrapping around,
-	 * return failure.
-	 */
-	if ((read_loc + packetlen + VMBUS_PKT_TRAILER) > (dsize - 1))
-		return NULL;
-
-	return cur_desc;
+	return ring_buffer + priv_read_loc;
 }
 
 /*
@@ -1555,22 +1576,22 @@ static inline void put_pkt_raw(struct vm
 				struct vmpacket_descriptor *desc)
 {
 	struct hv_ring_buffer_info *ring_info = &channel->inbound;
-	u32 read_loc = ring_info->priv_read_index;
 	u32 packetlen = desc->len8 << 3;
 	u32 dsize = ring_info->ring_datasize;
 
-	if ((read_loc + packetlen + VMBUS_PKT_TRAILER) > dsize)
-		BUG();
 	/*
 	 * Include the packet trailer.
 	 */
 	ring_info->priv_read_index += packetlen + VMBUS_PKT_TRAILER;
+	ring_info->priv_read_index %= dsize;
 }
 
 /*
  * This call commits the read index and potentially signals the host.
  * Here is the pattern for using the "in-place" consumption APIs:
  *
+ * init_cached_read_index();
+ *
  * while (get_next_pkt_raw() {
  *	process the packet "in-place";
  *	put_pkt_raw();
@@ -1589,8 +1610,7 @@ static inline void commit_rd_index(struc
 	virt_rmb();
 	ring_info->ring_buffer->read_index = ring_info->priv_read_index;
 
-	if (hv_need_to_signal_on_read(ring_info))
-		vmbus_set_event(channel);
+	hv_signal_on_read(channel);
 }
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/if_vlan.h linux-libre-4.9.52-gnu/include/linux/if_vlan.h
--- linux-libre-4.9-gnu/include/linux/if_vlan.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/if_vlan.h	2017-09-27 08:40:05.000000000 -0400
@@ -630,14 +630,16 @@ static inline bool skb_vlan_tagged_multi
 static inline netdev_features_t vlan_features_check(const struct sk_buff *skb,
 						    netdev_features_t features)
 {
-	if (skb_vlan_tagged_multi(skb))
-		features = netdev_intersect_features(features,
-						     NETIF_F_SG |
-						     NETIF_F_HIGHDMA |
-						     NETIF_F_FRAGLIST |
-						     NETIF_F_HW_CSUM |
-						     NETIF_F_HW_VLAN_CTAG_TX |
-						     NETIF_F_HW_VLAN_STAG_TX);
+	if (skb_vlan_tagged_multi(skb)) {
+		/* In the case of multi-tagged packets, use a direct mask
+		 * instead of using netdev_interesect_features(), to make
+		 * sure that only devices supporting NETIF_F_HW_CSUM will
+		 * have checksum offloading support.
+		 */
+		features &= NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_HW_CSUM |
+			    NETIF_F_FRAGLIST | NETIF_F_HW_VLAN_CTAG_TX |
+			    NETIF_F_HW_VLAN_STAG_TX;
+	}
 
 	return features;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/iio/common/st_sensors.h linux-libre-4.9.52-gnu/include/linux/iio/common/st_sensors.h
--- linux-libre-4.9-gnu/include/linux/iio/common/st_sensors.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/iio/common/st_sensors.h	2017-09-27 08:40:05.000000000 -0400
@@ -116,6 +116,16 @@ struct st_sensor_bdu {
 };
 
 /**
+ * struct st_sensor_das - ST sensor device data alignment selection
+ * @addr: address of the register.
+ * @mask: mask to write the das flag for left alignment.
+ */
+struct st_sensor_das {
+	u8 addr;
+	u8 mask;
+};
+
+/**
  * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
  * @addr: address of the register.
  * @mask_int1: mask to enable/disable IRQ on INT1 pin.
@@ -185,6 +195,7 @@ struct st_sensor_transfer_function {
  * @enable_axis: Enable one or more axis of the sensor.
  * @fs: Full scale register and full scale list available.
  * @bdu: Block data update register.
+ * @das: Data Alignment Selection register.
  * @drdy_irq: Data ready register of the sensor.
  * @multi_read_bit: Use or not particular bit for [I2C/SPI] multi-read.
  * @bootime: samples to discard when sensor passing from power-down to power-up.
@@ -200,6 +211,7 @@ struct st_sensor_settings {
 	struct st_sensor_axis enable_axis;
 	struct st_sensor_fullscale fs;
 	struct st_sensor_bdu bdu;
+	struct st_sensor_das das;
 	struct st_sensor_data_ready_irq drdy_irq;
 	bool multi_read_bit;
 	unsigned int bootime;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/iio/sw_device.h linux-libre-4.9.52-gnu/include/linux/iio/sw_device.h
--- linux-libre-4.9-gnu/include/linux/iio/sw_device.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/iio/sw_device.h	2017-09-27 08:40:05.000000000 -0400
@@ -62,7 +62,7 @@ void iio_swd_group_init_type_name(struct
 				  const char *name,
 				  struct config_item_type *type)
 {
-#ifdef CONFIG_CONFIGFS_FS
+#if IS_ENABLED(CONFIG_CONFIGFS_FS)
 	config_group_init_type_name(&d->group, name, type);
 #endif
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/intel-iommu.h linux-libre-4.9.52-gnu/include/linux/intel-iommu.h
--- linux-libre-4.9-gnu/include/linux/intel-iommu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/intel-iommu.h	2017-09-27 08:40:05.000000000 -0400
@@ -153,8 +153,8 @@ static inline void dmar_writeq(void __io
 #define DMA_TLB_GLOBAL_FLUSH (((u64)1) << 60)
 #define DMA_TLB_DSI_FLUSH (((u64)2) << 60)
 #define DMA_TLB_PSI_FLUSH (((u64)3) << 60)
-#define DMA_TLB_IIRG(type) ((type >> 60) & 7)
-#define DMA_TLB_IAIG(val) (((val) >> 57) & 7)
+#define DMA_TLB_IIRG(type) ((type >> 60) & 3)
+#define DMA_TLB_IAIG(val) (((val) >> 57) & 3)
 #define DMA_TLB_READ_DRAIN (((u64)1) << 49)
 #define DMA_TLB_WRITE_DRAIN (((u64)1) << 48)
 #define DMA_TLB_DID(id)	(((u64)((id) & 0xffff)) << 32)
@@ -164,9 +164,9 @@ static inline void dmar_writeq(void __io
 
 /* INVALID_DESC */
 #define DMA_CCMD_INVL_GRANU_OFFSET  61
-#define DMA_ID_TLB_GLOBAL_FLUSH	(((u64)1) << 3)
-#define DMA_ID_TLB_DSI_FLUSH	(((u64)2) << 3)
-#define DMA_ID_TLB_PSI_FLUSH	(((u64)3) << 3)
+#define DMA_ID_TLB_GLOBAL_FLUSH	(((u64)1) << 4)
+#define DMA_ID_TLB_DSI_FLUSH	(((u64)2) << 4)
+#define DMA_ID_TLB_PSI_FLUSH	(((u64)3) << 4)
 #define DMA_ID_TLB_READ_DRAIN	(((u64)1) << 7)
 #define DMA_ID_TLB_WRITE_DRAIN	(((u64)1) << 6)
 #define DMA_ID_TLB_DID(id)	(((u64)((id & 0xffff) << 16)))
@@ -316,8 +316,8 @@ enum {
 #define QI_DEV_EIOTLB_SIZE	(((u64)1) << 11)
 #define QI_DEV_EIOTLB_GLOB(g)	((u64)g)
 #define QI_DEV_EIOTLB_PASID(p)	(((u64)p) << 32)
-#define QI_DEV_EIOTLB_SID(sid)	((u64)((sid) & 0xffff) << 32)
-#define QI_DEV_EIOTLB_QDEP(qd)	(((qd) & 0x1f) << 16)
+#define QI_DEV_EIOTLB_SID(sid)	((u64)((sid) & 0xffff) << 16)
+#define QI_DEV_EIOTLB_QDEP(qd)	((u64)((qd) & 0x1f) << 4)
 #define QI_DEV_EIOTLB_MAX_INVS	32
 
 #define QI_PGRP_IDX(idx)	(((u64)(idx)) << 55)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/irq.h linux-libre-4.9.52-gnu/include/linux/irq.h
--- linux-libre-4.9-gnu/include/linux/irq.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/irq.h	2017-09-27 08:40:05.000000000 -0400
@@ -184,6 +184,7 @@ struct irq_data {
  *
  * IRQD_TRIGGER_MASK		- Mask for the trigger type bits
  * IRQD_SETAFFINITY_PENDING	- Affinity setting is pending
+ * IRQD_ACTIVATED		- Interrupt has already been activated
  * IRQD_NO_BALANCING		- Balancing disabled for this IRQ
  * IRQD_PER_CPU			- Interrupt is per cpu
  * IRQD_AFFINITY_SET		- Interrupt affinity was set
@@ -202,6 +203,7 @@ struct irq_data {
 enum {
 	IRQD_TRIGGER_MASK		= 0xf,
 	IRQD_SETAFFINITY_PENDING	= (1 <<  8),
+	IRQD_ACTIVATED			= (1 <<  9),
 	IRQD_NO_BALANCING		= (1 << 10),
 	IRQD_PER_CPU			= (1 << 11),
 	IRQD_AFFINITY_SET		= (1 << 12),
@@ -312,6 +314,21 @@ static inline bool irqd_affinity_is_mana
 	return __irqd_to_state(d) & IRQD_AFFINITY_MANAGED;
 }
 
+static inline bool irqd_is_activated(struct irq_data *d)
+{
+	return __irqd_to_state(d) & IRQD_ACTIVATED;
+}
+
+static inline void irqd_set_activated(struct irq_data *d)
+{
+	__irqd_to_state(d) |= IRQD_ACTIVATED;
+}
+
+static inline void irqd_clr_activated(struct irq_data *d)
+{
+	__irqd_to_state(d) &= ~IRQD_ACTIVATED;
+}
+
 #undef __irqd_to_state
 
 static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/jump_label_ratelimit.h linux-libre-4.9.52-gnu/include/linux/jump_label_ratelimit.h
--- linux-libre-4.9-gnu/include/linux/jump_label_ratelimit.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/jump_label_ratelimit.h	2017-09-27 08:40:05.000000000 -0400
@@ -14,6 +14,7 @@ struct static_key_deferred {
 
 #ifdef HAVE_JUMP_LABEL
 extern void static_key_slow_dec_deferred(struct static_key_deferred *key);
+extern void static_key_deferred_flush(struct static_key_deferred *key);
 extern void
 jump_label_rate_limit(struct static_key_deferred *key, unsigned long rl);
 
@@ -26,6 +27,10 @@ static inline void static_key_slow_dec_d
 	STATIC_KEY_CHECK_USE();
 	static_key_slow_dec(&key->key);
 }
+static inline void static_key_deferred_flush(struct static_key_deferred *key)
+{
+	STATIC_KEY_CHECK_USE();
+}
 static inline void
 jump_label_rate_limit(struct static_key_deferred *key,
 		unsigned long rl)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/kprobes.h linux-libre-4.9.52-gnu/include/linux/kprobes.h
--- linux-libre-4.9-gnu/include/linux/kprobes.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/kprobes.h	2017-09-27 08:40:05.000000000 -0400
@@ -330,7 +330,9 @@ extern int proc_kprobes_optimization_han
 					     int write, void __user *buffer,
 					     size_t *length, loff_t *ppos);
 #endif
-
+extern void wait_for_kprobe_optimizer(void);
+#else
+static inline void wait_for_kprobe_optimizer(void) { }
 #endif /* CONFIG_OPTPROBES */
 #ifdef CONFIG_KPROBES_ON_FTRACE
 extern void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/kvm_host.h linux-libre-4.9.52-gnu/include/linux/kvm_host.h
--- linux-libre-4.9-gnu/include/linux/kvm_host.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/kvm_host.h	2017-09-27 08:40:05.000000000 -0400
@@ -162,8 +162,8 @@ int kvm_io_bus_read(struct kvm_vcpu *vcp
 		    int len, void *val);
 int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 			    int len, struct kvm_io_device *dev);
-int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
-			      struct kvm_io_device *dev);
+void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
+			       struct kvm_io_device *dev);
 struct kvm_io_device *kvm_io_bus_get_dev(struct kvm *kvm, enum kvm_bus bus_idx,
 					 gpa_t addr);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/libnvdimm.h linux-libre-4.9.52-gnu/include/linux/libnvdimm.h
--- linux-libre-4.9-gnu/include/linux/libnvdimm.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/libnvdimm.h	2017-09-27 08:40:05.000000000 -0400
@@ -70,6 +70,8 @@ struct nd_cmd_desc {
 
 struct nd_interleave_set {
 	u64 cookie;
+	/* compatibility with initial buggy Linux implementation */
+	u64 altcookie;
 };
 
 struct nd_mapping_desc {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/list_lru.h linux-libre-4.9.52-gnu/include/linux/list_lru.h
--- linux-libre-4.9-gnu/include/linux/list_lru.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/list_lru.h	2017-09-27 08:40:05.000000000 -0400
@@ -44,6 +44,7 @@ struct list_lru_node {
 	/* for cgroup aware lrus points to per cgroup lists, otherwise NULL */
 	struct list_lru_memcg	*memcg_lrus;
 #endif
+	long nr_items;
 } ____cacheline_aligned_in_smp;
 
 struct list_lru {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/lockd/lockd.h linux-libre-4.9.52-gnu/include/linux/lockd/lockd.h
--- linux-libre-4.9-gnu/include/linux/lockd/lockd.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/lockd/lockd.h	2017-09-27 08:40:05.000000000 -0400
@@ -355,7 +355,8 @@ static inline int nlm_privileged_request
 static inline int nlm_compare_locks(const struct file_lock *fl1,
 				    const struct file_lock *fl2)
 {
-	return	fl1->fl_pid   == fl2->fl_pid
+	return file_inode(fl1->fl_file) == file_inode(fl2->fl_file)
+	     && fl1->fl_pid   == fl2->fl_pid
 	     && fl1->fl_owner == fl2->fl_owner
 	     && fl1->fl_start == fl2->fl_start
 	     && fl1->fl_end   == fl2->fl_end
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/log2.h linux-libre-4.9.52-gnu/include/linux/log2.h
--- linux-libre-4.9-gnu/include/linux/log2.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/log2.h	2017-09-27 08:40:05.000000000 -0400
@@ -16,12 +16,6 @@
 #include <linux/bitops.h>
 
 /*
- * deal with unrepresentable constant logarithms
- */
-extern __attribute__((const, noreturn))
-int ____ilog2_NaN(void);
-
-/*
  * non-constant log of base 2 calculators
  * - the arch may override these in asm/bitops.h if they can be implemented
  *   more efficiently than using fls() and fls64()
@@ -85,7 +79,7 @@ unsigned long __rounddown_pow_of_two(uns
 #define ilog2(n)				\
 (						\
 	__builtin_constant_p(n) ? (		\
-		(n) < 1 ? ____ilog2_NaN() :	\
+		(n) < 2 ? 0 :			\
 		(n) & (1ULL << 63) ? 63 :	\
 		(n) & (1ULL << 62) ? 62 :	\
 		(n) & (1ULL << 61) ? 61 :	\
@@ -148,10 +142,7 @@ unsigned long __rounddown_pow_of_two(uns
 		(n) & (1ULL <<  4) ?  4 :	\
 		(n) & (1ULL <<  3) ?  3 :	\
 		(n) & (1ULL <<  2) ?  2 :	\
-		(n) & (1ULL <<  1) ?  1 :	\
-		(n) & (1ULL <<  0) ?  0 :	\
-		____ilog2_NaN()			\
-				   ) :		\
+		1 ) :				\
 	(sizeof(n) <= 4) ?			\
 	__ilog2_u32(n) :			\
 	__ilog2_u64(n)				\
@@ -203,6 +194,17 @@ unsigned long __rounddown_pow_of_two(uns
  *  ... and so on.
  */
 
-#define order_base_2(n) ilog2(roundup_pow_of_two(n))
+static inline __attribute_const__
+int __order_base_2(unsigned long n)
+{
+	return n > 1 ? ilog2(n - 1) + 1 : 0;
+}
 
+#define order_base_2(n)				\
+(						\
+	__builtin_constant_p(n) ? (		\
+		((n) == 0 || (n) == 1) ? 0 :	\
+		ilog2((n) - 1) + 1) :		\
+	__order_base_2(n)			\
+)
 #endif /* _LINUX_LOG2_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/memblock.h linux-libre-4.9.52-gnu/include/linux/memblock.h
--- linux-libre-4.9-gnu/include/linux/memblock.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/memblock.h	2017-09-27 08:40:05.000000000 -0400
@@ -64,6 +64,7 @@ extern bool movable_node_enabled;
 #ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
 #define __init_memblock __meminit
 #define __initdata_memblock __meminitdata
+void memblock_discard(void);
 #else
 #define __init_memblock
 #define __initdata_memblock
@@ -77,8 +78,6 @@ phys_addr_t memblock_find_in_range_node(
 					int nid, ulong flags);
 phys_addr_t memblock_find_in_range(phys_addr_t start, phys_addr_t end,
 				   phys_addr_t size, phys_addr_t align);
-phys_addr_t get_allocated_memblock_reserved_regions_info(phys_addr_t *addr);
-phys_addr_t get_allocated_memblock_memory_regions_info(phys_addr_t *addr);
 void memblock_allow_resize(void);
 int memblock_add_node(phys_addr_t base, phys_addr_t size, int nid);
 int memblock_add(phys_addr_t base, phys_addr_t size);
@@ -112,6 +111,9 @@ void __next_mem_range_rev(u64 *idx, int
 void __next_reserved_mem_region(u64 *idx, phys_addr_t *out_start,
 				phys_addr_t *out_end);
 
+void __memblock_free_early(phys_addr_t base, phys_addr_t size);
+void __memblock_free_late(phys_addr_t base, phys_addr_t size);
+
 /**
  * for_each_mem_range - iterate through memblock areas from type_a and not
  * included in type_b. Or just type_a if type_b is NULL.
@@ -421,11 +423,19 @@ static inline void early_memtest(phys_ad
 }
 #endif
 
+extern unsigned long memblock_reserved_memory_within(phys_addr_t start_addr,
+		phys_addr_t end_addr);
 #else
 static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
 {
 	return 0;
 }
+
+static inline unsigned long memblock_reserved_memory_within(phys_addr_t start_addr,
+		phys_addr_t end_addr)
+{
+	return 0;
+}
 
 #endif /* CONFIG_HAVE_MEMBLOCK */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/memcontrol.h linux-libre-4.9.52-gnu/include/linux/memcontrol.h
--- linux-libre-4.9-gnu/include/linux/memcontrol.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/memcontrol.h	2017-09-27 08:40:05.000000000 -0400
@@ -120,7 +120,7 @@ struct mem_cgroup_reclaim_iter {
  */
 struct mem_cgroup_per_node {
 	struct lruvec		lruvec;
-	unsigned long		lru_size[NR_LRU_LISTS];
+	unsigned long		lru_zone_size[MAX_NR_ZONES][NR_LRU_LISTS];
 
 	struct mem_cgroup_reclaim_iter	iter[DEF_PRIORITY + 1];
 
@@ -432,7 +432,7 @@ static inline bool mem_cgroup_online(str
 int mem_cgroup_select_victim_node(struct mem_cgroup *memcg);
 
 void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
-		int nr_pages);
+		int zid, int nr_pages);
 
 unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
 					   int nid, unsigned int lru_mask);
@@ -441,9 +441,23 @@ static inline
 unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
 {
 	struct mem_cgroup_per_node *mz;
+	unsigned long nr_pages = 0;
+	int zid;
 
 	mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
-	return mz->lru_size[lru];
+	for (zid = 0; zid < MAX_NR_ZONES; zid++)
+		nr_pages += mz->lru_zone_size[zid][lru];
+	return nr_pages;
+}
+
+static inline
+unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec,
+		enum lru_list lru, int zone_idx)
+{
+	struct mem_cgroup_per_node *mz;
+
+	mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
+	return mz->lru_zone_size[zone_idx][lru];
 }
 
 void mem_cgroup_handle_over_high(void);
@@ -671,6 +685,12 @@ mem_cgroup_get_lru_size(struct lruvec *l
 {
 	return 0;
 }
+static inline
+unsigned long mem_cgroup_get_zone_lru_size(struct lruvec *lruvec,
+		enum lru_list lru, int zone_idx)
+{
+	return 0;
+}
 
 static inline unsigned long
 mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
@@ -719,6 +739,12 @@ static inline bool mem_cgroup_oom_synchr
 	return false;
 }
 
+static inline void mem_cgroup_update_page_stat(struct page *page,
+					       enum mem_cgroup_stat_index idx,
+					       int nr)
+{
+}
+
 static inline void mem_cgroup_inc_page_stat(struct page *page,
 					    enum mem_cgroup_stat_index idx)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/memory_hotplug.h linux-libre-4.9.52-gnu/include/linux/memory_hotplug.h
--- linux-libre-4.9-gnu/include/linux/memory_hotplug.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/memory_hotplug.h	2017-09-27 08:40:05.000000000 -0400
@@ -85,7 +85,8 @@ extern int zone_grow_waitqueues(struct z
 extern int add_one_highpage(struct page *page, int pfn, int bad_ppro);
 /* VM interface that may be used by firmware interface */
 extern int online_pages(unsigned long, unsigned long, int);
-extern int test_pages_in_a_zone(unsigned long, unsigned long);
+extern int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn,
+	unsigned long *valid_start, unsigned long *valid_end);
 extern void __offline_isolated_pages(unsigned long, unsigned long);
 
 typedef void (*online_page_callback_t)(struct page *page);
@@ -284,7 +285,7 @@ extern void sparse_remove_one_section(st
 		unsigned long map_offset);
 extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map,
 					  unsigned long pnum);
-extern int zone_can_shift(unsigned long pfn, unsigned long nr_pages,
-			  enum zone_type target);
+extern bool zone_can_shift(unsigned long pfn, unsigned long nr_pages,
+			  enum zone_type target, int *zone_shift);
 
 #endif /* __LINUX_MEMORY_HOTPLUG_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/micrel_phy.h linux-libre-4.9.52-gnu/include/linux/micrel_phy.h
--- linux-libre-4.9-gnu/include/linux/micrel_phy.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/micrel_phy.h	2017-09-27 08:40:05.000000000 -0400
@@ -35,6 +35,8 @@
 #define PHY_ID_KSZ886X		0x00221430
 #define PHY_ID_KSZ8863		0x00221435
 
+#define PHY_ID_KSZ8795		0x00221550
+
 /* struct phy_device dev_flags definitions */
 #define MICREL_PHY_50MHZ_CLK	0x00000001
 #define MICREL_PHY_FXEN		0x00000002
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/mlx4/device.h linux-libre-4.9.52-gnu/include/linux/mlx4/device.h
--- linux-libre-4.9-gnu/include/linux/mlx4/device.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/mlx4/device.h	2017-09-27 08:40:05.000000000 -0400
@@ -1384,6 +1384,8 @@ int set_phv_bit(struct mlx4_dev *dev, u8
 int get_phv_bit(struct mlx4_dev *dev, u8 port, int *phv);
 int mlx4_get_is_vlan_offload_disabled(struct mlx4_dev *dev, u8 port,
 				      bool *vlan_offload_disabled);
+void mlx4_handle_eth_header_mcast_prio(struct mlx4_net_trans_rule_hw_ctrl *ctrl,
+				       struct _rule_hw *eth_header);
 int mlx4_find_cached_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *idx);
 int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
 int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/mlx5/driver.h linux-libre-4.9.52-gnu/include/linux/mlx5/driver.h
--- linux-libre-4.9-gnu/include/linux/mlx5/driver.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/mlx5/driver.h	2017-09-27 08:40:05.000000000 -0400
@@ -640,7 +640,12 @@ enum {
 
 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
 
+enum {
+	MLX5_CMD_ENT_STATE_PENDING_COMP,
+};
+
 struct mlx5_cmd_work_ent {
+	unsigned long		state;
 	struct mlx5_cmd_msg    *in;
 	struct mlx5_cmd_msg    *out;
 	void		       *uout;
@@ -783,6 +788,7 @@ int mlx5_health_init(struct mlx5_core_de
 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
 void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
+void mlx5_drain_health_recovery(struct mlx5_core_dev *dev);
 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
 			struct mlx5_buf *buf, int node);
 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf);
@@ -838,7 +844,7 @@ void mlx5_eq_pagefault(struct mlx5_core_
 #endif
 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
-void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec);
+void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced);
 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
 		       int nent, u64 mask, const char *name, struct mlx5_uar *uar);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/mm.h linux-libre-4.9.52-gnu/include/linux/mm.h
--- linux-libre-4.9-gnu/include/linux/mm.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/mm.h	2017-09-27 08:40:05.000000000 -0400
@@ -1270,6 +1270,8 @@ extern int access_process_vm(struct task
 		unsigned int gup_flags);
 extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
 		void *buf, int len, unsigned int gup_flags);
+extern int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+		unsigned long addr, void *buf, int len, unsigned int gup_flags);
 
 long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
 			    unsigned long start, unsigned long nr_pages,
@@ -1354,39 +1356,11 @@ int clear_page_dirty_for_io(struct page
 
 int get_cmdline(struct task_struct *task, char *buffer, int buflen);
 
-/* Is the vma a continuation of the stack vma above it? */
-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
-}
-
 static inline bool vma_is_anonymous(struct vm_area_struct *vma)
 {
 	return !vma->vm_ops;
 }
 
-static inline int stack_guard_page_start(struct vm_area_struct *vma,
-					     unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSDOWN) &&
-		(vma->vm_start == addr) &&
-		!vma_growsdown(vma->vm_prev, addr);
-}
-
-/* Is the vma a continuation of the stack vma below it? */
-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
-}
-
-static inline int stack_guard_page_end(struct vm_area_struct *vma,
-					   unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSUP) &&
-		(vma->vm_end == addr) &&
-		!vma_growsup(vma->vm_next, addr);
-}
-
 int vma_is_stack_for_current(struct vm_area_struct *vma);
 
 extern unsigned long move_page_tables(struct vm_area_struct *vma,
@@ -2125,6 +2099,7 @@ void page_cache_async_readahead(struct a
 				pgoff_t offset,
 				unsigned long size);
 
+extern unsigned long stack_guard_gap;
 /* Generic expand stack which grows the stack according to GROWS{UP,DOWN} */
 extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
 
@@ -2153,6 +2128,30 @@ static inline struct vm_area_struct * fi
 	return vma;
 }
 
+static inline unsigned long vm_start_gap(struct vm_area_struct *vma)
+{
+	unsigned long vm_start = vma->vm_start;
+
+	if (vma->vm_flags & VM_GROWSDOWN) {
+		vm_start -= stack_guard_gap;
+		if (vm_start > vma->vm_start)
+			vm_start = 0;
+	}
+	return vm_start;
+}
+
+static inline unsigned long vm_end_gap(struct vm_area_struct *vma)
+{
+	unsigned long vm_end = vma->vm_end;
+
+	if (vma->vm_flags & VM_GROWSUP) {
+		vm_end += stack_guard_gap;
+		if (vm_end < vma->vm_end)
+			vm_end = -PAGE_SIZE;
+	}
+	return vm_end;
+}
+
 static inline unsigned long vma_pages(struct vm_area_struct *vma)
 {
 	return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/mm_inline.h linux-libre-4.9.52-gnu/include/linux/mm_inline.h
--- linux-libre-4.9-gnu/include/linux/mm_inline.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/mm_inline.h	2017-09-27 08:40:05.000000000 -0400
@@ -39,7 +39,7 @@ static __always_inline void update_lru_s
 {
 	__update_lru_size(lruvec, lru, zid, nr_pages);
 #ifdef CONFIG_MEMCG
-	mem_cgroup_update_lru_size(lruvec, lru, nr_pages);
+	mem_cgroup_update_lru_size(lruvec, lru, zid, nr_pages);
 #endif
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/mm_types.h linux-libre-4.9.52-gnu/include/linux/mm_types.h
--- linux-libre-4.9-gnu/include/linux/mm_types.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/mm_types.h	2017-09-27 08:40:05.000000000 -0400
@@ -473,6 +473,7 @@ struct mm_struct {
 	 */
 	struct task_struct __rcu *owner;
 #endif
+	struct user_namespace *user_ns;
 
 	/* store ref to file /proc/<pid>/exe symlink points to */
 	struct file __rcu *exe_file;
@@ -507,6 +508,10 @@ struct mm_struct {
 	 */
 	bool tlb_flush_pending;
 #endif
+#ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
+	/* See flush_tlb_batched_pending() */
+	bool tlb_flush_batched;
+#endif
 	struct uprobes_state uprobes_state;
 #ifdef CONFIG_X86_INTEL_MPX
 	/* address of the bounds directory */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/mmzone.h linux-libre-4.9.52-gnu/include/linux/mmzone.h
--- linux-libre-4.9-gnu/include/linux/mmzone.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/mmzone.h	2017-09-27 08:40:05.000000000 -0400
@@ -672,6 +672,7 @@ typedef struct pglist_data {
 	 * is the first PFN that needs to be initialised.
 	 */
 	unsigned long first_deferred_pfn;
+	unsigned long static_init_size;
 #endif /* CONFIG_DEFERRED_STRUCT_PAGE_INIT */
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -779,7 +780,7 @@ static inline struct pglist_data *lruvec
 #endif
 }
 
-extern unsigned long lruvec_lru_size(struct lruvec *lruvec, enum lru_list lru);
+extern unsigned long lruvec_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx);
 
 #ifdef CONFIG_HAVE_MEMORY_PRESENT
 void memory_present(int nid, unsigned long start, unsigned long end);
@@ -972,12 +973,16 @@ static __always_inline struct zoneref *n
  * @zonelist - The zonelist to search for a suitable zone
  * @highest_zoneidx - The zone index of the highest zone to return
  * @nodes - An optional nodemask to filter the zonelist with
- * @zone - The first suitable zone found is returned via this parameter
+ * @return - Zoneref pointer for the first suitable zone found (see below)
  *
  * This function returns the first zone at or below a given zone index that is
  * within the allowed nodemask. The zoneref returned is a cursor that can be
  * used to iterate the zonelist with next_zones_zonelist by advancing it by
  * one before calling.
+ *
+ * When no eligible zone is found, zoneref->zone is NULL (zoneref itself is
+ * never NULL). This may happen either genuinely, or due to concurrent nodemask
+ * update due to cpuset modification.
  */
 static inline struct zoneref *first_zones_zonelist(struct zonelist *zonelist,
 					enum zone_type highest_zoneidx,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/mount.h linux-libre-4.9.52-gnu/include/linux/mount.h
--- linux-libre-4.9-gnu/include/linux/mount.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/mount.h	2017-09-27 08:40:05.000000000 -0400
@@ -90,6 +90,9 @@ struct file_system_type;
 extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
 				      int flags, const char *name,
 				      void *data);
+extern struct vfsmount *vfs_submount(const struct dentry *mountpoint,
+				     struct file_system_type *type,
+				     const char *name, void *data);
 
 extern void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list);
 extern void mark_mounts_for_expiry(struct list_head *mounts);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/netdevice.h linux-libre-4.9.52-gnu/include/linux/netdevice.h
--- linux-libre-4.9-gnu/include/linux/netdevice.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/netdevice.h	2017-09-27 08:40:05.000000000 -0400
@@ -865,11 +865,15 @@ struct netdev_xdp {
  *	of useless work if you return NETDEV_TX_BUSY.
  *	Required; cannot be NULL.
  *
- * netdev_features_t (*ndo_fix_features)(struct net_device *dev,
- *		netdev_features_t features);
- *	Adjusts the requested feature flags according to device-specific
- *	constraints, and returns the resulting flags. Must not modify
- *	the device state.
+ * netdev_features_t (*ndo_features_check)(struct sk_buff *skb,
+ *					   struct net_device *dev
+ *					   netdev_features_t features);
+ *	Called by core transmit path to determine if device is capable of
+ *	performing offload operations on a given packet. This is to give
+ *	the device an opportunity to implement any restrictions that cannot
+ *	be otherwise expressed by feature flags. The check is called with
+ *	the set of features that the stack has calculated and it returns
+ *	those the driver believes to be appropriate.
  *
  * u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb,
  *                         void *accel_priv, select_queue_fallback_t fallback);
@@ -1027,6 +1031,12 @@ struct netdev_xdp {
  *	Called to release previously enslaved netdev.
  *
  *      Feature/offload setting functions.
+ * netdev_features_t (*ndo_fix_features)(struct net_device *dev,
+ *		netdev_features_t features);
+ *	Adjusts the requested feature flags according to device-specific
+ *	constraints, and returns the resulting flags. Must not modify
+ *	the device state.
+ *
  * int (*ndo_set_features)(struct net_device *dev, netdev_features_t features);
  *	Called to update device configuration to new features. Passed
  *	feature set might be less than what was returned by ndo_fix_features()).
@@ -1099,15 +1109,6 @@ struct netdev_xdp {
  *	Callback to use for xmit over the accelerated station. This
  *	is used in place of ndo_start_xmit on accelerated net
  *	devices.
- * netdev_features_t (*ndo_features_check)(struct sk_buff *skb,
- *					   struct net_device *dev
- *					   netdev_features_t features);
- *	Called by core transmit path to determine if device is capable of
- *	performing offload operations on a given packet. This is to give
- *	the device an opportunity to implement any restrictions that cannot
- *	be otherwise expressed by feature flags. The check is called with
- *	the set of features that the stack has calculated and it returns
- *	those the driver believes to be appropriate.
  * int (*ndo_set_tx_maxrate)(struct net_device *dev,
  *			     int queue_index, u32 maxrate);
  *	Called when a user wants to set a max-rate limitation of specific
@@ -1508,6 +1509,7 @@ enum netdev_priv_flags {
  *	@mtu:		Interface MTU value
  *	@type:		Interface hardware type
  *	@hard_header_len: Maximum hardware header length.
+ *	@min_header_len:  Minimum hardware header length
  *
  *	@needed_headroom: Extra headroom the hardware may need, but not in all
  *			  cases can this be guaranteed
@@ -1728,6 +1730,7 @@ struct net_device {
 	unsigned int		mtu;
 	unsigned short		type;
 	unsigned short		hard_header_len;
+	unsigned short		min_header_len;
 
 	unsigned short		needed_headroom;
 	unsigned short		needed_tailroom;
@@ -2502,14 +2505,19 @@ static inline int skb_gro_header_hard(st
 	return NAPI_GRO_CB(skb)->frag0_len < hlen;
 }
 
+static inline void skb_gro_frag0_invalidate(struct sk_buff *skb)
+{
+	NAPI_GRO_CB(skb)->frag0 = NULL;
+	NAPI_GRO_CB(skb)->frag0_len = 0;
+}
+
 static inline void *skb_gro_header_slow(struct sk_buff *skb, unsigned int hlen,
 					unsigned int offset)
 {
 	if (!pskb_may_pull(skb, hlen))
 		return NULL;
 
-	NAPI_GRO_CB(skb)->frag0 = NULL;
-	NAPI_GRO_CB(skb)->frag0_len = 0;
+	skb_gro_frag0_invalidate(skb);
 	return skb->data + offset;
 }
 
@@ -2778,6 +2786,8 @@ static inline bool dev_validate_header(c
 {
 	if (likely(len >= dev->hard_header_len))
 		return true;
+	if (len < dev->min_header_len)
+		return false;
 
 	if (capable(CAP_SYS_RAWIO)) {
 		memset(ll_header + len, 0, dev->hard_header_len - len);
@@ -3891,6 +3901,8 @@ struct net_device *netdev_all_upper_get_
 	     updev; \
 	     updev = netdev_all_upper_get_next_dev_rcu(dev, &(iter)))
 
+bool netdev_has_any_upper_dev(struct net_device *dev);
+
 void *netdev_lower_get_next_private(struct net_device *dev,
 				    struct list_head **iter);
 void *netdev_lower_get_next_private_rcu(struct net_device *dev,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/nfs4.h linux-libre-4.9.52-gnu/include/linux/nfs4.h
--- linux-libre-4.9-gnu/include/linux/nfs4.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/nfs4.h	2017-09-27 08:40:05.000000000 -0400
@@ -282,7 +282,7 @@ enum nfsstat4 {
 
 static inline bool seqid_mutating_err(u32 err)
 {
-	/* rfc 3530 section 8.1.5: */
+	/* See RFC 7530, section 9.1.7 */
 	switch (err) {
 	case NFS4ERR_STALE_CLIENTID:
 	case NFS4ERR_STALE_STATEID:
@@ -291,6 +291,7 @@ static inline bool seqid_mutating_err(u3
 	case NFS4ERR_BADXDR:
 	case NFS4ERR_RESOURCE:
 	case NFS4ERR_NOFILEHANDLE:
+	case NFS4ERR_MOVED:
 		return false;
 	};
 	return true;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/nfs_xdr.h linux-libre-4.9.52-gnu/include/linux/nfs_xdr.h
--- linux-libre-4.9-gnu/include/linux/nfs_xdr.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/nfs_xdr.h	2017-09-27 08:40:05.000000000 -0400
@@ -1199,7 +1199,7 @@ struct nfs41_state_protection {
 
 struct nfs41_exchange_id_args {
 	struct nfs_client		*client;
-	nfs4_verifier			*verifier;
+	nfs4_verifier			verifier;
 	u32				flags;
 	struct nfs41_state_protection	state_protect;
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/nmi.h linux-libre-4.9.52-gnu/include/linux/nmi.h
--- linux-libre-4.9-gnu/include/linux/nmi.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/nmi.h	2017-09-27 08:40:05.000000000 -0400
@@ -7,6 +7,23 @@
 #include <linux/sched.h>
 #include <asm/irq.h>
 
+/*
+ * The run state of the lockup detectors is controlled by the content of the
+ * 'watchdog_enabled' variable. Each lockup detector has its dedicated bit -
+ * bit 0 for the hard lockup detector and bit 1 for the soft lockup detector.
+ *
+ * 'watchdog_user_enabled', 'nmi_watchdog_enabled' and 'soft_watchdog_enabled'
+ * are variables that are only used as an 'interface' between the parameters
+ * in /proc/sys/kernel and the internal state bits in 'watchdog_enabled'. The
+ * 'watchdog_thresh' variable is handled differently because its value is not
+ * boolean, and the lockup detectors are 'suspended' while 'watchdog_thresh'
+ * is equal zero.
+ */
+#define NMI_WATCHDOG_ENABLED_BIT   0
+#define SOFT_WATCHDOG_ENABLED_BIT  1
+#define NMI_WATCHDOG_ENABLED      (1 << NMI_WATCHDOG_ENABLED_BIT)
+#define SOFT_WATCHDOG_ENABLED     (1 << SOFT_WATCHDOG_ENABLED_BIT)
+
 /**
  * touch_nmi_watchdog - restart NMI watchdog timeout.
  * 
@@ -91,9 +108,17 @@ extern int nmi_watchdog_enabled;
 extern int soft_watchdog_enabled;
 extern int watchdog_user_enabled;
 extern int watchdog_thresh;
+extern unsigned long watchdog_enabled;
 extern unsigned long *watchdog_cpumask_bits;
+extern atomic_t watchdog_park_in_progress;
+#ifdef CONFIG_SMP
 extern int sysctl_softlockup_all_cpu_backtrace;
 extern int sysctl_hardlockup_all_cpu_backtrace;
+#else
+#define sysctl_softlockup_all_cpu_backtrace 0
+#define sysctl_hardlockup_all_cpu_backtrace 0
+#endif
+extern bool is_hardlockup(void);
 struct ctl_table;
 extern int proc_watchdog(struct ctl_table *, int ,
 			 void __user *, size_t *, loff_t *);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/pci.h linux-libre-4.9.52-gnu/include/linux/pci.h
--- linux-libre-4.9-gnu/include/linux/pci.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/pci.h	2017-09-27 08:40:05.000000000 -0400
@@ -178,6 +178,11 @@ enum pci_dev_flags {
 	PCI_DEV_FLAGS_NO_PM_RESET = (__force pci_dev_flags_t) (1 << 7),
 	/* Get VPD from function 0 VPD */
 	PCI_DEV_FLAGS_VPD_REF_F0 = (__force pci_dev_flags_t) (1 << 8),
+	/*
+	 * Resume before calling the driver's system suspend hooks, disabling
+	 * the direct_complete optimization.
+	 */
+	PCI_DEV_FLAGS_NEEDS_RESUME = (__force pci_dev_flags_t) (1 << 11),
 };
 
 enum pci_irq_reroute_variant {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/pci_ids.h linux-libre-4.9.52-gnu/include/linux/pci_ids.h
--- linux-libre-4.9-gnu/include/linux/pci_ids.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/pci_ids.h	2017-09-27 08:40:05.000000000 -0400
@@ -574,6 +574,7 @@
 #define PCI_DEVICE_ID_AMD_CS5536_EHC    0x2095
 #define PCI_DEVICE_ID_AMD_CS5536_UDC    0x2096
 #define PCI_DEVICE_ID_AMD_CS5536_UOC    0x2097
+#define PCI_DEVICE_ID_AMD_CS5536_DEV_IDE    0x2092
 #define PCI_DEVICE_ID_AMD_CS5536_IDE    0x209A
 #define PCI_DEVICE_ID_AMD_LX_VIDEO  0x2081
 #define PCI_DEVICE_ID_AMD_LX_AES    0x2082
@@ -2256,12 +2257,29 @@
 #define PCI_DEVICE_ID_ZOLTRIX_2BD0	0x2bd0
 
 #define PCI_VENDOR_ID_MELLANOX		0x15b3
-#define PCI_DEVICE_ID_MELLANOX_TAVOR	0x5a44
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX3	0x1003
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO	0x1007
+#define PCI_DEVICE_ID_MELLANOX_CONNECTIB	0x1011
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX4	0x1013
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX4_LX	0x1015
+#define PCI_DEVICE_ID_MELLANOX_TAVOR		0x5a44
 #define PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE	0x5a46
-#define PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT 0x6278
-#define PCI_DEVICE_ID_MELLANOX_ARBEL	0x6282
-#define PCI_DEVICE_ID_MELLANOX_SINAI_OLD 0x5e8c
-#define PCI_DEVICE_ID_MELLANOX_SINAI	0x6274
+#define PCI_DEVICE_ID_MELLANOX_SINAI_OLD	0x5e8c
+#define PCI_DEVICE_ID_MELLANOX_SINAI		0x6274
+#define PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT	0x6278
+#define PCI_DEVICE_ID_MELLANOX_ARBEL		0x6282
+#define PCI_DEVICE_ID_MELLANOX_HERMON_SDR	0x6340
+#define PCI_DEVICE_ID_MELLANOX_HERMON_DDR	0x634a
+#define PCI_DEVICE_ID_MELLANOX_HERMON_QDR	0x6354
+#define PCI_DEVICE_ID_MELLANOX_HERMON_EN	0x6368
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX_EN	0x6372
+#define PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2	0x6732
+#define PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2	0x673c
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2 0x6746
+#define PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2	0x6750
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2 0x675a
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2	0x6764
+#define PCI_DEVICE_ID_MELLANOX_CONNECTX2	0x676e
 
 #define PCI_VENDOR_ID_DFI		0x15bd
 
@@ -2496,6 +2514,8 @@
 #define PCI_DEVICE_ID_KORENIX_JETCARDF2	0x1700
 #define PCI_DEVICE_ID_KORENIX_JETCARDF3	0x17ff
 
+#define PCI_VENDOR_ID_HUAWEI         	0x19e5
+
 #define PCI_VENDOR_ID_NETRONOME		0x19ee
 #define PCI_DEVICE_ID_NETRONOME_NFP3200	0x3200
 #define PCI_DEVICE_ID_NETRONOME_NFP3240	0x3240
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/percpu-refcount.h linux-libre-4.9.52-gnu/include/linux/percpu-refcount.h
--- linux-libre-4.9-gnu/include/linux/percpu-refcount.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/percpu-refcount.h	2017-09-27 08:40:05.000000000 -0400
@@ -204,7 +204,7 @@ static inline void percpu_ref_get(struct
 static inline bool percpu_ref_tryget(struct percpu_ref *ref)
 {
 	unsigned long __percpu *percpu_count;
-	int ret;
+	bool ret;
 
 	rcu_read_lock_sched();
 
@@ -238,7 +238,7 @@ static inline bool percpu_ref_tryget(str
 static inline bool percpu_ref_tryget_live(struct percpu_ref *ref)
 {
 	unsigned long __percpu *percpu_count;
-	int ret = false;
+	bool ret = false;
 
 	rcu_read_lock_sched();
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/phy.h linux-libre-4.9.52-gnu/include/linux/phy.h
--- linux-libre-4.9-gnu/include/linux/phy.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/phy.h	2017-09-27 08:40:05.000000000 -0400
@@ -401,6 +401,9 @@ struct phy_device {
 	u32 advertising;
 	u32 lp_advertising;
 
+	/* Energy efficient ethernet modes which should be prohibited */
+	u32 eee_broken_modes;
+
 	int autoneg;
 
 	int link_timeout;
@@ -796,6 +799,10 @@ int genphy_read_status(struct phy_device
 int genphy_suspend(struct phy_device *phydev);
 int genphy_resume(struct phy_device *phydev);
 int genphy_soft_reset(struct phy_device *phydev);
+static inline int genphy_no_soft_reset(struct phy_device *phydev)
+{
+	return 0;
+}
 void phy_driver_unregister(struct phy_driver *drv);
 void phy_drivers_unregister(struct phy_driver *drv, int n);
 int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
@@ -806,6 +813,7 @@ void phy_change(struct work_struct *work
 void phy_mac_interrupt(struct phy_device *phydev, int new_link);
 void phy_start_machine(struct phy_device *phydev);
 void phy_stop_machine(struct phy_device *phydev);
+void phy_trigger_machine(struct phy_device *phydev, bool sync);
 int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
 int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
 int phy_ethtool_ksettings_get(struct phy_device *phydev,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/pid.h linux-libre-4.9.52-gnu/include/linux/pid.h
--- linux-libre-4.9-gnu/include/linux/pid.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/pid.h	2017-09-27 08:40:05.000000000 -0400
@@ -8,7 +8,9 @@ enum pid_type
 	PIDTYPE_PID,
 	PIDTYPE_PGID,
 	PIDTYPE_SID,
-	PIDTYPE_MAX
+	PIDTYPE_MAX,
+	/* only valid to __task_pid_nr_ns() */
+	__PIDTYPE_TGID
 };
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/pm_opp.h linux-libre-4.9.52-gnu/include/linux/pm_opp.h
--- linux-libre-4.9-gnu/include/linux/pm_opp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/pm_opp.h	2017-09-27 08:40:05.000000000 -0400
@@ -19,6 +19,7 @@
 
 struct dev_pm_opp;
 struct device;
+struct opp_table;
 
 enum dev_pm_opp_event {
 	OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
@@ -62,8 +63,8 @@ int dev_pm_opp_set_supported_hw(struct d
 void dev_pm_opp_put_supported_hw(struct device *dev);
 int dev_pm_opp_set_prop_name(struct device *dev, const char *name);
 void dev_pm_opp_put_prop_name(struct device *dev);
-int dev_pm_opp_set_regulator(struct device *dev, const char *name);
-void dev_pm_opp_put_regulator(struct device *dev);
+struct opp_table *dev_pm_opp_set_regulator(struct device *dev, const char *name);
+void dev_pm_opp_put_regulator(struct opp_table *opp_table);
 int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
 int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask);
 int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
@@ -170,12 +171,12 @@ static inline int dev_pm_opp_set_prop_na
 
 static inline void dev_pm_opp_put_prop_name(struct device *dev) {}
 
-static inline int dev_pm_opp_set_regulator(struct device *dev, const char *name)
+static inline struct opp_table *dev_pm_opp_set_regulator(struct device *dev, const char *name)
 {
-	return -ENOTSUPP;
+	return ERR_PTR(-ENOTSUPP);
 }
 
-static inline void dev_pm_opp_put_regulator(struct device *dev) {}
+static inline void dev_pm_opp_put_regulator(struct opp_table *opp_table) {}
 
 static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/power/bq27xxx_battery.h linux-libre-4.9.52-gnu/include/linux/power/bq27xxx_battery.h
--- linux-libre-4.9-gnu/include/linux/power/bq27xxx_battery.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/power/bq27xxx_battery.h	2017-09-27 08:40:05.000000000 -0400
@@ -4,7 +4,8 @@
 enum bq27xxx_chip {
 	BQ27000 = 1, /* bq27000, bq27200 */
 	BQ27010, /* bq27010, bq27210 */
-	BQ27500, /* bq27500, bq27510, bq27520 */
+	BQ27500, /* bq27500 */
+	BQ27510, /* bq27510, bq27520 */
 	BQ27530, /* bq27530, bq27531 */
 	BQ27541, /* bq27541, bq27542, bq27546, bq27742 */
 	BQ27545, /* bq27545 */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/property.h linux-libre-4.9.52-gnu/include/linux/property.h
--- linux-libre-4.9-gnu/include/linux/property.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/property.h	2017-09-27 08:40:05.000000000 -0400
@@ -33,6 +33,8 @@ enum dev_dma_attr {
 	DEV_DMA_COHERENT,
 };
 
+struct fwnode_handle *dev_fwnode(struct device *dev);
+
 bool device_property_present(struct device *dev, const char *propname);
 int device_property_read_u8_array(struct device *dev, const char *propname,
 				  u8 *val, size_t nval);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/pstore_ram.h linux-libre-4.9.52-gnu/include/linux/pstore_ram.h
--- linux-libre-4.9-gnu/include/linux/pstore_ram.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/pstore_ram.h	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,13 @@
 #include <linux/list.h>
 #include <linux/types.h>
 
+/*
+ * Choose whether access to the RAM zone requires locking or not.  If a zone
+ * can be written to from different CPUs like with ftrace for example, then
+ * PRZ_FLAG_NO_LOCK is used. For all other cases, locking is required.
+ */
+#define PRZ_FLAG_NO_LOCK	BIT(0)
+
 struct persistent_ram_buffer;
 struct rs_control;
 
@@ -40,6 +47,8 @@ struct persistent_ram_zone {
 	void *vaddr;
 	struct persistent_ram_buffer *buffer;
 	size_t buffer_size;
+	u32 flags;
+	raw_spinlock_t buffer_lock;
 
 	/* ECC correction */
 	char *par_buffer;
@@ -55,7 +64,7 @@ struct persistent_ram_zone {
 
 struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
 			u32 sig, struct persistent_ram_ecc_info *ecc_info,
-			unsigned int memtype);
+			unsigned int memtype, u32 flags);
 void persistent_ram_free(struct persistent_ram_zone *prz);
 void persistent_ram_zap(struct persistent_ram_zone *prz);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/ptrace.h linux-libre-4.9.52-gnu/include/linux/ptrace.h
--- linux-libre-4.9-gnu/include/linux/ptrace.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/ptrace.h	2017-09-27 08:40:05.000000000 -0400
@@ -8,6 +8,9 @@
 #include <linux/pid_namespace.h>	/* For task_active_pid_ns.  */
 #include <uapi/linux/ptrace.h>
 
+extern int ptrace_access_vm(struct task_struct *tsk, unsigned long addr,
+			    void *buf, int len, unsigned int gup_flags);
+
 /*
  * Ptrace flags
  *
@@ -19,7 +22,6 @@
 #define PT_SEIZED	0x00010000	/* SEIZE used, enable new behavior */
 #define PT_PTRACED	0x00000001
 #define PT_DTRACE	0x00000002	/* delayed trace (used on m68k, i386) */
-#define PT_PTRACE_CAP	0x00000004	/* ptracer can follow suid-exec */
 
 #define PT_OPT_FLAG_SHIFT	3
 /* PT_TRACE_* event enable flags */
@@ -51,7 +53,8 @@ extern int ptrace_request(struct task_st
 			  unsigned long addr, unsigned long data);
 extern void ptrace_notify(int exit_code);
 extern void __ptrace_link(struct task_struct *child,
-			  struct task_struct *new_parent);
+			  struct task_struct *new_parent,
+			  const struct cred *ptracer_cred);
 extern void __ptrace_unlink(struct task_struct *child);
 extern void exit_ptrace(struct task_struct *tracer, struct list_head *dead);
 #define PTRACE_MODE_READ	0x01
@@ -203,7 +206,7 @@ static inline void ptrace_init_task(stru
 
 	if (unlikely(ptrace) && current->ptrace) {
 		child->ptrace = current->ptrace;
-		__ptrace_link(child, current->parent);
+		__ptrace_link(child, current->parent, current->ptracer_cred);
 
 		if (child->ptrace & PT_SEIZED)
 			task_set_jobctl_pending(child, JOBCTL_TRAP_STOP);
@@ -212,6 +215,8 @@ static inline void ptrace_init_task(stru
 
 		set_tsk_thread_flag(child, TIF_SIGPENDING);
 	}
+	else
+		child->ptracer_cred = NULL;
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/ptr_ring.h linux-libre-4.9.52-gnu/include/linux/ptr_ring.h
--- linux-libre-4.9-gnu/include/linux/ptr_ring.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/ptr_ring.h	2017-09-27 08:40:05.000000000 -0400
@@ -111,6 +111,11 @@ static inline int __ptr_ring_produce(str
 	return 0;
 }
 
+/*
+ * Note: resize (below) nests producer lock within consumer lock, so if you
+ * consume in interrupt or BH context, you must disable interrupts/BH when
+ * calling this.
+ */
 static inline int ptr_ring_produce(struct ptr_ring *r, void *ptr)
 {
 	int ret;
@@ -242,6 +247,11 @@ static inline void *__ptr_ring_consume(s
 	return ptr;
 }
 
+/*
+ * Note: resize (below) nests producer lock within consumer lock, so if you
+ * call this in interrupt or BH context, you must disable interrupts/BH when
+ * producing.
+ */
 static inline void *ptr_ring_consume(struct ptr_ring *r)
 {
 	void *ptr;
@@ -330,9 +340,9 @@ static inline void *ptr_ring_consume_bh(
 	__PTR_RING_PEEK_CALL_v; \
 })
 
-static inline void **__ptr_ring_init_queue_alloc(int size, gfp_t gfp)
+static inline void **__ptr_ring_init_queue_alloc(unsigned int size, gfp_t gfp)
 {
-	return kzalloc(ALIGN(size * sizeof(void *), SMP_CACHE_BYTES), gfp);
+	return kcalloc(size, sizeof(void *), gfp);
 }
 
 static inline int ptr_ring_init(struct ptr_ring *r, int size, gfp_t gfp)
@@ -357,7 +367,7 @@ static inline void **__ptr_ring_swap_que
 	void **old;
 	void *ptr;
 
-	while ((ptr = ptr_ring_consume(r)))
+	while ((ptr = __ptr_ring_consume(r)))
 		if (producer < size)
 			queue[producer++] = ptr;
 		else if (destroy)
@@ -372,6 +382,12 @@ static inline void **__ptr_ring_swap_que
 	return old;
 }
 
+/*
+ * Note: producer lock is nested within consumer lock, so if you
+ * resize you must make sure all uses nest correctly.
+ * In particular if you consume ring in interrupt or BH context, you must
+ * disable interrupts/BH when doing so.
+ */
 static inline int ptr_ring_resize(struct ptr_ring *r, int size, gfp_t gfp,
 				  void (*destroy)(void *))
 {
@@ -382,18 +398,27 @@ static inline int ptr_ring_resize(struct
 	if (!queue)
 		return -ENOMEM;
 
-	spin_lock_irqsave(&(r)->producer_lock, flags);
+	spin_lock_irqsave(&(r)->consumer_lock, flags);
+	spin_lock(&(r)->producer_lock);
 
 	old = __ptr_ring_swap_queue(r, queue, size, gfp, destroy);
 
-	spin_unlock_irqrestore(&(r)->producer_lock, flags);
+	spin_unlock(&(r)->producer_lock);
+	spin_unlock_irqrestore(&(r)->consumer_lock, flags);
 
 	kfree(old);
 
 	return 0;
 }
 
-static inline int ptr_ring_resize_multiple(struct ptr_ring **rings, int nrings,
+/*
+ * Note: producer lock is nested within consumer lock, so if you
+ * resize you must make sure all uses nest correctly.
+ * In particular if you consume ring in interrupt or BH context, you must
+ * disable interrupts/BH when doing so.
+ */
+static inline int ptr_ring_resize_multiple(struct ptr_ring **rings,
+					   unsigned int nrings,
 					   int size,
 					   gfp_t gfp, void (*destroy)(void *))
 {
@@ -401,7 +426,7 @@ static inline int ptr_ring_resize_multip
 	void ***queues;
 	int i;
 
-	queues = kmalloc(nrings * sizeof *queues, gfp);
+	queues = kmalloc_array(nrings, sizeof(*queues), gfp);
 	if (!queues)
 		goto noqueues;
 
@@ -412,10 +437,12 @@ static inline int ptr_ring_resize_multip
 	}
 
 	for (i = 0; i < nrings; ++i) {
-		spin_lock_irqsave(&(rings[i])->producer_lock, flags);
+		spin_lock_irqsave(&(rings[i])->consumer_lock, flags);
+		spin_lock(&(rings[i])->producer_lock);
 		queues[i] = __ptr_ring_swap_queue(rings[i], queues[i],
 						  size, gfp, destroy);
-		spin_unlock_irqrestore(&(rings[i])->producer_lock, flags);
+		spin_unlock(&(rings[i])->producer_lock);
+		spin_unlock_irqrestore(&(rings[i])->consumer_lock, flags);
 	}
 
 	for (i = 0; i < nrings; ++i)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/random.h linux-libre-4.9.52-gnu/include/linux/random.h
--- linux-libre-4.9-gnu/include/linux/random.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/random.h	2017-09-27 08:40:05.000000000 -0400
@@ -37,7 +37,6 @@ extern void get_random_bytes(void *buf,
 extern int add_random_ready_callback(struct random_ready_callback *rdy);
 extern void del_random_ready_callback(struct random_ready_callback *rdy);
 extern void get_random_bytes_arch(void *buf, int nbytes);
-extern int random_int_secret_init(void);
 
 #ifndef MODULE
 extern const struct file_operations random_fops, urandom_fops;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/rcupdate.h linux-libre-4.9.52-gnu/include/linux/rcupdate.h
--- linux-libre-4.9-gnu/include/linux/rcupdate.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/rcupdate.h	2017-09-27 08:40:05.000000000 -0400
@@ -444,6 +444,10 @@ bool __rcu_is_watching(void);
 #error "Unknown RCU implementation specified to kernel configuration"
 #endif
 
+#define RCU_SCHEDULER_INACTIVE	0
+#define RCU_SCHEDULER_INIT	1
+#define RCU_SCHEDULER_RUNNING	2
+
 /*
  * init_rcu_head_on_stack()/destroy_rcu_head_on_stack() are needed for dynamic
  * initialization and destruction of rcu_head on the stack. rcu_head structures
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/sched.h linux-libre-4.9.52-gnu/include/linux/sched.h
--- linux-libre-4.9-gnu/include/linux/sched.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/sched.h	2017-09-27 08:40:05.000000000 -0400
@@ -830,6 +830,16 @@ struct signal_struct {
 
 #define SIGNAL_UNKILLABLE	0x00000040 /* for init: ignore fatal signals */
 
+#define SIGNAL_STOP_MASK (SIGNAL_CLD_MASK | SIGNAL_STOP_STOPPED | \
+			  SIGNAL_STOP_CONTINUED)
+
+static inline void signal_set_stop_flags(struct signal_struct *sig,
+					 unsigned int flags)
+{
+	WARN_ON(sig->flags & (SIGNAL_GROUP_EXIT|SIGNAL_GROUP_COREDUMP));
+	sig->flags = (sig->flags & ~SIGNAL_STOP_MASK) | flags;
+}
+
 /* If true, all threads except ->group_exit_task have pending SIGKILL */
 static inline int signal_group_exit(const struct signal_struct *sig)
 {
@@ -1584,6 +1594,10 @@ struct task_struct {
 #ifdef CONFIG_COMPAT_BRK
 	unsigned brk_randomized:1;
 #endif
+#ifdef CONFIG_CGROUPS
+	/* disallow userland-initiated cgroup migration */
+	unsigned no_cgroup_migration:1;
+#endif
 
 	unsigned long atomic_flags; /* Flags needing atomic access. */
 
@@ -1656,6 +1670,7 @@ struct task_struct {
 	struct list_head cpu_timers[3];
 
 /* process credentials */
+	const struct cred __rcu *ptracer_cred; /* Tracer's credentials at attach */
 	const struct cred __rcu *real_cred; /* objective and real subjective task
 					 * credentials (COW) */
 	const struct cred __rcu *cred;	/* effective (overridable) subjective task
@@ -2117,31 +2132,8 @@ static inline pid_t task_tgid_nr(struct
 	return tsk->tgid;
 }
 
-pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns);
-
-static inline pid_t task_tgid_vnr(struct task_struct *tsk)
-{
-	return pid_vnr(task_tgid(tsk));
-}
-
 
 static inline int pid_alive(const struct task_struct *p);
-static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
-{
-	pid_t pid = 0;
-
-	rcu_read_lock();
-	if (pid_alive(tsk))
-		pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
-	rcu_read_unlock();
-
-	return pid;
-}
-
-static inline pid_t task_ppid_nr(const struct task_struct *tsk)
-{
-	return task_ppid_nr_ns(tsk, &init_pid_ns);
-}
 
 static inline pid_t task_pgrp_nr_ns(struct task_struct *tsk,
 					struct pid_namespace *ns)
@@ -2166,6 +2158,33 @@ static inline pid_t task_session_vnr(str
 	return __task_pid_nr_ns(tsk, PIDTYPE_SID, NULL);
 }
 
+static inline pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
+{
+	return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, ns);
+}
+
+static inline pid_t task_tgid_vnr(struct task_struct *tsk)
+{
+	return __task_pid_nr_ns(tsk, __PIDTYPE_TGID, NULL);
+}
+
+static inline pid_t task_ppid_nr_ns(const struct task_struct *tsk, struct pid_namespace *ns)
+{
+	pid_t pid = 0;
+
+	rcu_read_lock();
+	if (pid_alive(tsk))
+		pid = task_tgid_nr_ns(rcu_dereference(tsk->real_parent), ns);
+	rcu_read_unlock();
+
+	return pid;
+}
+
+static inline pid_t task_ppid_nr(const struct task_struct *tsk)
+{
+	return task_ppid_nr_ns(tsk, &init_pid_ns);
+}
+
 /* obsolete, do not use */
 static inline pid_t task_pgrp_nr(struct task_struct *tsk)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/skb_array.h linux-libre-4.9.52-gnu/include/linux/skb_array.h
--- linux-libre-4.9-gnu/include/linux/skb_array.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/skb_array.h	2017-09-27 08:40:05.000000000 -0400
@@ -162,7 +162,8 @@ static inline int skb_array_resize(struc
 }
 
 static inline int skb_array_resize_multiple(struct skb_array **rings,
-					    int nrings, int size, gfp_t gfp)
+					    int nrings, unsigned int size,
+					    gfp_t gfp)
 {
 	BUILD_BUG_ON(offsetof(struct skb_array, ring));
 	return ptr_ring_resize_multiple((struct ptr_ring **)rings,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/slab.h linux-libre-4.9.52-gnu/include/linux/slab.h
--- linux-libre-4.9-gnu/include/linux/slab.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/slab.h	2017-09-27 08:40:05.000000000 -0400
@@ -226,7 +226,7 @@ static inline const char *__check_heap_o
  * (PAGE_SIZE*2).  Larger requests are passed to the page allocator.
  */
 #define KMALLOC_SHIFT_HIGH	(PAGE_SHIFT + 1)
-#define KMALLOC_SHIFT_MAX	(MAX_ORDER + PAGE_SHIFT)
+#define KMALLOC_SHIFT_MAX	(MAX_ORDER + PAGE_SHIFT - 1)
 #ifndef KMALLOC_SHIFT_LOW
 #define KMALLOC_SHIFT_LOW	3
 #endif
@@ -239,7 +239,7 @@ static inline const char *__check_heap_o
  * be allocated from the same page.
  */
 #define KMALLOC_SHIFT_HIGH	PAGE_SHIFT
-#define KMALLOC_SHIFT_MAX	30
+#define KMALLOC_SHIFT_MAX	(MAX_ORDER + PAGE_SHIFT - 1)
 #ifndef KMALLOC_SHIFT_LOW
 #define KMALLOC_SHIFT_LOW	3
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/sunrpc/clnt.h linux-libre-4.9.52-gnu/include/linux/sunrpc/clnt.h
--- linux-libre-4.9-gnu/include/linux/sunrpc/clnt.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/sunrpc/clnt.h	2017-09-27 08:40:05.000000000 -0400
@@ -216,5 +216,6 @@ void rpc_clnt_xprt_switch_put(struct rpc
 void rpc_clnt_xprt_switch_add_xprt(struct rpc_clnt *, struct rpc_xprt *);
 bool rpc_clnt_xprt_switch_has_addr(struct rpc_clnt *clnt,
 			const struct sockaddr *sap);
+void rpc_cleanup_clids(void);
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_CLNT_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/sunrpc/svc.h linux-libre-4.9.52-gnu/include/linux/sunrpc/svc.h
--- linux-libre-4.9-gnu/include/linux/sunrpc/svc.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/sunrpc/svc.h	2017-09-27 08:40:05.000000000 -0400
@@ -470,6 +470,7 @@ void		   svc_pool_map_put(void);
 struct svc_serv *  svc_create_pooled(struct svc_program *, unsigned int,
 			struct svc_serv_ops *);
 int		   svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
+int		   svc_set_num_threads_sync(struct svc_serv *, struct svc_pool *, int);
 int		   svc_pool_stats_open(struct svc_serv *serv, struct file *file);
 void		   svc_destroy(struct svc_serv *);
 void		   svc_shutdown_net(struct svc_serv *, struct net *);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/sunrpc/svc_xprt.h linux-libre-4.9.52-gnu/include/linux/sunrpc/svc_xprt.h
--- linux-libre-4.9-gnu/include/linux/sunrpc/svc_xprt.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/sunrpc/svc_xprt.h	2017-09-27 08:40:05.000000000 -0400
@@ -66,6 +66,7 @@ struct svc_xprt {
 #define XPT_LISTENER	10		/* listening endpoint */
 #define XPT_CACHE_AUTH	11		/* cache auth info */
 #define XPT_LOCAL	12		/* connection from loopback interface */
+#define XPT_KILL_TEMP   13		/* call xpo_kill_temp_xprt before closing */
 
 	struct svc_serv		*xpt_server;	/* service for transport */
 	atomic_t    	    	xpt_reserved;	/* space on outq that is rsvd */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/swap.h linux-libre-4.9.52-gnu/include/linux/swap.h
--- linux-libre-4.9-gnu/include/linux/swap.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/swap.h	2017-09-27 08:40:05.000000000 -0400
@@ -150,8 +150,9 @@ enum {
 	SWP_FILE	= (1 << 7),	/* set after swap_activate success */
 	SWP_AREA_DISCARD = (1 << 8),	/* single-time swap area discards */
 	SWP_PAGE_DISCARD = (1 << 9),	/* freed swap page-cluster discards */
+	SWP_STABLE_WRITES = (1 << 10),	/* no overwrite PG_writeback pages */
 					/* add others here before... */
-	SWP_SCANNING	= (1 << 10),	/* refcount in scan_swap_map */
+	SWP_SCANNING	= (1 << 11),	/* refcount in scan_swap_map */
 };
 
 #define SWAP_CLUSTER_MAX 32UL
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/swiotlb.h linux-libre-4.9.52-gnu/include/linux/swiotlb.h
--- linux-libre-4.9-gnu/include/linux/swiotlb.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/swiotlb.h	2017-09-27 08:40:05.000000000 -0400
@@ -9,7 +9,13 @@ struct device;
 struct page;
 struct scatterlist;
 
-extern int swiotlb_force;
+enum swiotlb_force {
+	SWIOTLB_NORMAL,		/* Default - depending on HW DMA mask etc. */
+	SWIOTLB_FORCE,		/* swiotlb=force */
+	SWIOTLB_NO_FORCE,	/* swiotlb=noforce */
+};
+
+extern enum swiotlb_force swiotlb_force;
 
 /*
  * Maximum allowable number of contiguous slabs to map,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/tcp.h linux-libre-4.9.52-gnu/include/linux/tcp.h
--- linux-libre-4.9-gnu/include/linux/tcp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/tcp.h	2017-09-27 08:40:05.000000000 -0400
@@ -62,8 +62,13 @@ static inline unsigned int tcp_optlen(co
 
 /* TCP Fast Open Cookie as stored in memory */
 struct tcp_fastopen_cookie {
+	union {
+		u8	val[TCP_FASTOPEN_COOKIE_MAX];
+#if IS_ENABLED(CONFIG_IPV6)
+		struct in6_addr addr;
+#endif
+	};
 	s8	len;
-	u8	val[TCP_FASTOPEN_COOKIE_MAX];
 	bool	exp;	/* In RFC6994 experimental option format */
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/timekeeper_internal.h linux-libre-4.9.52-gnu/include/linux/timekeeper_internal.h
--- linux-libre-4.9-gnu/include/linux/timekeeper_internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/timekeeper_internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -29,7 +29,6 @@
  */
 struct tk_read_base {
 	struct clocksource	*clock;
-	cycle_t			(*read)(struct clocksource *cs);
 	cycle_t			mask;
 	cycle_t			cycle_last;
 	u32			mult;
@@ -58,7 +57,7 @@ struct tk_read_base {
  *			interval.
  * @xtime_remainder:	Shifted nano seconds left over when rounding
  *			@cycle_interval
- * @raw_interval:	Raw nano seconds accumulated per NTP interval.
+ * @raw_interval:	Shifted raw nano seconds accumulated per NTP interval.
  * @ntp_error:		Difference between accumulated time and NTP time in ntp
  *			shifted nano seconds.
  * @ntp_error_shift:	Shift conversion between clock shifted nano seconds and
@@ -100,7 +99,7 @@ struct timekeeper {
 	cycle_t			cycle_interval;
 	u64			xtime_interval;
 	s64			xtime_remainder;
-	u32			raw_interval;
+	u64			raw_interval;
 	/* The ntp_tick_length() value currently being used.
 	 * This cached copy ensures we consistently apply the tick
 	 * length for an entire tick, as ntp_tick_length may change
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/tty_flip.h linux-libre-4.9.52-gnu/include/linux/tty_flip.h
--- linux-libre-4.9-gnu/include/linux/tty_flip.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/tty_flip.h	2017-09-27 08:40:05.000000000 -0400
@@ -12,6 +12,7 @@ extern int tty_prepare_flip_string(struc
 		unsigned char **chars, size_t size);
 extern void tty_flip_buffer_push(struct tty_port *port);
 void tty_schedule_flip(struct tty_port *port);
+int __tty_insert_flip_char(struct tty_port *port, unsigned char ch, char flag);
 
 static inline int tty_insert_flip_char(struct tty_port *port,
 					unsigned char ch, char flag)
@@ -26,7 +27,7 @@ static inline int tty_insert_flip_char(s
 		*char_buf_ptr(tb, tb->used++) = ch;
 		return 1;
 	}
-	return tty_insert_flip_string_flags(port, &ch, &flag, 1);
+	return __tty_insert_flip_char(port, ch, flag);
 }
 
 static inline int tty_insert_flip_string(struct tty_port *port,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/uio.h linux-libre-4.9.52-gnu/include/linux/uio.h
--- linux-libre-4.9-gnu/include/linux/uio.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/uio.h	2017-09-27 08:40:05.000000000 -0400
@@ -39,7 +39,10 @@ struct iov_iter {
 	};
 	union {
 		unsigned long nr_segs;
-		int idx;
+		struct {
+			int idx;
+			int start_idx;
+		};
 	};
 };
 
@@ -81,6 +84,7 @@ unsigned long iov_shorten(struct iovec *
 size_t iov_iter_copy_from_user_atomic(struct page *page,
 		struct iov_iter *i, unsigned long offset, size_t bytes);
 void iov_iter_advance(struct iov_iter *i, size_t bytes);
+void iov_iter_revert(struct iov_iter *i, size_t bytes);
 int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
 size_t iov_iter_single_seg_count(const struct iov_iter *i);
 size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/usb/chipidea.h linux-libre-4.9.52-gnu/include/linux/usb/chipidea.h
--- linux-libre-4.9-gnu/include/linux/usb/chipidea.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/usb/chipidea.h	2017-09-27 08:40:05.000000000 -0400
@@ -14,6 +14,7 @@ struct ci_hdrc;
  * struct ci_hdrc_cable - structure for external connector cable state tracking
  * @state: current state of the line
  * @changed: set to true when extcon event happen
+ * @enabled: set to true if we've enabled the vbus or id interrupt
  * @edev: device which generate events
  * @ci: driver state of the chipidea device
  * @nb: hold event notification callback
@@ -22,6 +23,7 @@ struct ci_hdrc;
 struct ci_hdrc_cable {
 	bool				state;
 	bool				changed;
+	bool				enabled;
 	struct extcon_dev		*edev;
 	struct ci_hdrc			*ci;
 	struct notifier_block		nb;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/usb/gadget.h linux-libre-4.9.52-gnu/include/linux/usb/gadget.h
--- linux-libre-4.9-gnu/include/linux/usb/gadget.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/usb/gadget.h	2017-09-27 08:40:05.000000000 -0400
@@ -429,7 +429,9 @@ static inline struct usb_gadget *dev_to_
  */
 static inline size_t usb_ep_align(struct usb_ep *ep, size_t len)
 {
-	return round_up(len, (size_t)le16_to_cpu(ep->desc->wMaxPacketSize));
+	int max_packet_size = (size_t)usb_endpoint_maxp(ep->desc) & 0x7ff;
+
+	return round_up(len, max_packet_size);
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/usb/hcd.h linux-libre-4.9.52-gnu/include/linux/usb/hcd.h
--- linux-libre-4.9-gnu/include/linux/usb/hcd.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/usb/hcd.h	2017-09-27 08:40:05.000000000 -0400
@@ -561,9 +561,9 @@ extern void usb_ep0_reinit(struct usb_de
 	((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
 
 #define EndpointRequest \
-	((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
+	((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
 #define EndpointOutRequest \
-	((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
+	((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
 
 /* class requests from the USB 2.0 hub spec, table 11-15 */
 /* GetBusState and SetHubDescriptor are optional, omitted */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/usb/quirks.h linux-libre-4.9.52-gnu/include/linux/usb/quirks.h
--- linux-libre-4.9-gnu/include/linux/usb/quirks.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/usb/quirks.h	2017-09-27 08:40:05.000000000 -0400
@@ -50,4 +50,10 @@
 /* device can't handle Link Power Management */
 #define USB_QUIRK_NO_LPM			BIT(10)
 
+/*
+ * Device reports its bInterval as linear frames instead of the
+ * USB 2.0 calculation.
+ */
+#define USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL	BIT(11)
+
 #endif /* __LINUX_USB_QUIRKS_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/user_namespace.h linux-libre-4.9.52-gnu/include/linux/user_namespace.h
--- linux-libre-4.9-gnu/include/linux/user_namespace.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/user_namespace.h	2017-09-27 08:40:05.000000000 -0400
@@ -65,7 +65,7 @@ struct ucounts {
 	struct hlist_node node;
 	struct user_namespace *ns;
 	kuid_t uid;
-	atomic_t count;
+	int count;
 	atomic_t ucount[UCOUNT_COUNTS];
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/vfio.h linux-libre-4.9.52-gnu/include/linux/vfio.h
--- linux-libre-4.9-gnu/include/linux/vfio.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/vfio.h	2017-09-27 08:40:05.000000000 -0400
@@ -88,6 +88,8 @@ extern void vfio_unregister_iommu_driver
  */
 extern struct vfio_group *vfio_group_get_external_user(struct file *filep);
 extern void vfio_group_put_external_user(struct vfio_group *group);
+extern bool vfio_external_group_match_file(struct vfio_group *group,
+					   struct file *filep);
 extern int vfio_external_user_iommu_id(struct vfio_group *group);
 extern long vfio_external_check_extension(struct vfio_group *group,
 					  unsigned long arg);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/virtio_net.h linux-libre-4.9.52-gnu/include/linux/virtio_net.h
--- linux-libre-4.9-gnu/include/linux/virtio_net.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/virtio_net.h	2017-09-27 08:40:05.000000000 -0400
@@ -56,7 +56,8 @@ static inline int virtio_net_hdr_to_skb(
 
 static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb,
 					  struct virtio_net_hdr *hdr,
-					  bool little_endian)
+					  bool little_endian,
+					  bool has_data_valid)
 {
 	memset(hdr, 0, sizeof(*hdr));
 
@@ -91,7 +92,8 @@ static inline int virtio_net_hdr_from_sk
 				skb_checksum_start_offset(skb));
 		hdr->csum_offset = __cpu_to_virtio16(little_endian,
 				skb->csum_offset);
-	} else if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+	} else if (has_data_valid &&
+		   skb->ip_summed == CHECKSUM_UNNECESSARY) {
 		hdr->flags = VIRTIO_NET_HDR_F_DATA_VALID;
 	} /* else everything is zero */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/linux/workqueue.h linux-libre-4.9.52-gnu/include/linux/workqueue.h
--- linux-libre-4.9-gnu/include/linux/workqueue.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/linux/workqueue.h	2017-09-27 08:40:05.000000000 -0400
@@ -312,6 +312,7 @@ enum {
 	__WQ_DRAINING		= 1 << 16, /* internal: workqueue is draining */
 	__WQ_ORDERED		= 1 << 17, /* internal: workqueue is ordered */
 	__WQ_LEGACY		= 1 << 18, /* internal: create*_workqueue() */
+	__WQ_ORDERED_EXPLICIT	= 1 << 19, /* internal: alloc_ordered_workqueue() */
 
 	WQ_MAX_ACTIVE		= 512,	  /* I like 512, better ideas? */
 	WQ_MAX_UNBOUND_PER_CPU	= 4,	  /* 4 * #cpus for unbound wq */
@@ -409,7 +410,8 @@ __alloc_workqueue_key(const char *fmt, u
  * Pointer to the allocated workqueue on success, %NULL on failure.
  */
 #define alloc_ordered_workqueue(fmt, flags, args...)			\
-	alloc_workqueue(fmt, WQ_UNBOUND | __WQ_ORDERED | (flags), 1, ##args)
+	alloc_workqueue(fmt, WQ_UNBOUND | __WQ_ORDERED |		\
+			__WQ_ORDERED_EXPLICIT | (flags), 1, ##args)
 
 #define create_workqueue(name)						\
 	alloc_workqueue("%s", __WQ_LEGACY | WQ_MEM_RECLAIM, 1, (name))
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/addrconf.h linux-libre-4.9.52-gnu/include/net/addrconf.h
--- linux-libre-4.9-gnu/include/net/addrconf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/addrconf.h	2017-09-27 08:40:05.000000000 -0400
@@ -20,6 +20,8 @@
 #define ADDRCONF_TIMER_FUZZ		(HZ / 4)
 #define ADDRCONF_TIMER_FUZZ_MAX		(HZ)
 
+#define ADDRCONF_NOTIFY_PRIORITY	0
+
 #include <linux/in.h>
 #include <linux/in6.h>
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/cfg80211.h linux-libre-4.9.52-gnu/include/net/cfg80211.h
--- linux-libre-4.9-gnu/include/net/cfg80211.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/cfg80211.h	2017-09-27 08:40:05.000000000 -0400
@@ -4584,6 +4584,17 @@ void cfg80211_rx_assoc_resp(struct net_d
 void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss);
 
 /**
+ * cfg80211_abandon_assoc - notify cfg80211 of abandoned association attempt
+ * @dev: network device
+ * @bss: The BSS entry with which association was abandoned.
+ *
+ * Call this whenever - for reasons reported through other API, like deauth RX,
+ * an association attempt was abandoned.
+ * This function may sleep. The caller must hold the corresponding wdev's mutex.
+ */
+void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss);
+
+/**
  * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
  * @dev: network device
  * @buf: 802.11 frame (header + body)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/cipso_ipv4.h linux-libre-4.9.52-gnu/include/net/cipso_ipv4.h
--- linux-libre-4.9-gnu/include/net/cipso_ipv4.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/cipso_ipv4.h	2017-09-27 08:40:05.000000000 -0400
@@ -309,6 +309,10 @@ static inline int cipso_v4_validate(cons
 	}
 
 	for (opt_iter = 6; opt_iter < opt_len;) {
+		if (opt_iter + 1 == opt_len) {
+			err_offset = opt_iter;
+			goto out;
+		}
 		tag_len = opt[opt_iter + 1];
 		if ((tag_len == 0) || (tag_len > (opt_len - opt_iter))) {
 			err_offset = opt_iter + 1;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/dst.h linux-libre-4.9.52-gnu/include/net/dst.h
--- linux-libre-4.9-gnu/include/net/dst.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/dst.h	2017-09-27 08:40:05.000000000 -0400
@@ -107,10 +107,16 @@ struct dst_entry {
 	};
 };
 
+struct dst_metrics {
+	u32		metrics[RTAX_MAX];
+	atomic_t	refcnt;
+};
+extern const struct dst_metrics dst_default_metrics;
+
 u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old);
-extern const u32 dst_default_metrics[];
 
 #define DST_METRICS_READ_ONLY		0x1UL
+#define DST_METRICS_REFCOUNTED		0x2UL
 #define DST_METRICS_FLAGS		0x3UL
 #define __DST_METRICS_PTR(Y)	\
 	((u32 *)((Y) & ~DST_METRICS_FLAGS))
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/inet_frag.h linux-libre-4.9.52-gnu/include/net/inet_frag.h
--- linux-libre-4.9-gnu/include/net/inet_frag.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/inet_frag.h	2017-09-27 08:40:05.000000000 -0400
@@ -1,14 +1,9 @@
 #ifndef __NET_FRAG_H__
 #define __NET_FRAG_H__
 
-#include <linux/percpu_counter.h>
-
 struct netns_frags {
-	/* The percpu_counter "mem" need to be cacheline aligned.
-	 *  mem.count must not share cacheline with other writers
-	 */
-	struct percpu_counter   mem ____cacheline_aligned_in_smp;
-
+	/* Keep atomic mem on separate cachelines in structs that include it */
+	atomic_t		mem ____cacheline_aligned_in_smp;
 	/* sysctls */
 	int			timeout;
 	int			high_thresh;
@@ -108,15 +103,10 @@ struct inet_frags {
 int inet_frags_init(struct inet_frags *);
 void inet_frags_fini(struct inet_frags *);
 
-static inline int inet_frags_init_net(struct netns_frags *nf)
-{
-	return percpu_counter_init(&nf->mem, 0, GFP_KERNEL);
-}
-static inline void inet_frags_uninit_net(struct netns_frags *nf)
+static inline void inet_frags_init_net(struct netns_frags *nf)
 {
-	percpu_counter_destroy(&nf->mem);
+	atomic_set(&nf->mem, 0);
 }
-
 void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f);
 
 void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f);
@@ -140,37 +130,24 @@ static inline bool inet_frag_evicting(st
 
 /* Memory Tracking Functions. */
 
-/* The default percpu_counter batch size is not big enough to scale to
- * fragmentation mem acct sizes.
- * The mem size of a 64K fragment is approx:
- *  (44 fragments * 2944 truesize) + frag_queue struct(200) = 129736 bytes
- */
-static unsigned int frag_percpu_counter_batch = 130000;
-
 static inline int frag_mem_limit(struct netns_frags *nf)
 {
-	return percpu_counter_read(&nf->mem);
+	return atomic_read(&nf->mem);
 }
 
 static inline void sub_frag_mem_limit(struct netns_frags *nf, int i)
 {
-	__percpu_counter_add(&nf->mem, -i, frag_percpu_counter_batch);
+	atomic_sub(i, &nf->mem);
 }
 
 static inline void add_frag_mem_limit(struct netns_frags *nf, int i)
 {
-	__percpu_counter_add(&nf->mem, i, frag_percpu_counter_batch);
+	atomic_add(i, &nf->mem);
 }
 
-static inline unsigned int sum_frag_mem_limit(struct netns_frags *nf)
+static inline int sum_frag_mem_limit(struct netns_frags *nf)
 {
-	unsigned int res;
-
-	local_bh_disable();
-	res = percpu_counter_sum_positive(&nf->mem);
-	local_bh_enable();
-
-	return res;
+	return atomic_read(&nf->mem);
 }
 
 /* RFC 3168 support :
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/ip6_fib.h linux-libre-4.9.52-gnu/include/net/ip6_fib.h
--- linux-libre-4.9-gnu/include/net/ip6_fib.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/ip6_fib.h	2017-09-27 08:40:05.000000000 -0400
@@ -68,6 +68,7 @@ struct fib6_node {
 	__u16			fn_flags;
 	int			fn_sernum;
 	struct rt6_info		*rr_ptr;
+	struct rcu_head		rcu;
 };
 
 #ifndef CONFIG_IPV6_SUBTREES
@@ -102,7 +103,7 @@ struct rt6_info {
 	 * the same cache line.
 	 */
 	struct fib6_table		*rt6i_table;
-	struct fib6_node		*rt6i_node;
+	struct fib6_node __rcu		*rt6i_node;
 
 	struct in6_addr			rt6i_gateway;
 
@@ -165,13 +166,40 @@ static inline void rt6_update_expires(st
 	rt0->rt6i_flags |= RTF_EXPIRES;
 }
 
+/* Function to safely get fn->sernum for passed in rt
+ * and store result in passed in cookie.
+ * Return true if we can get cookie safely
+ * Return false if not
+ */
+static inline bool rt6_get_cookie_safe(const struct rt6_info *rt,
+				       u32 *cookie)
+{
+	struct fib6_node *fn;
+	bool status = false;
+
+	rcu_read_lock();
+	fn = rcu_dereference(rt->rt6i_node);
+
+	if (fn) {
+		*cookie = fn->fn_sernum;
+		status = true;
+	}
+
+	rcu_read_unlock();
+	return status;
+}
+
 static inline u32 rt6_get_cookie(const struct rt6_info *rt)
 {
+	u32 cookie = 0;
+
 	if (rt->rt6i_flags & RTF_PCPU ||
 	    (unlikely(rt->dst.flags & DST_NOCACHE) && rt->dst.from))
 		rt = (struct rt6_info *)(rt->dst.from);
 
-	return rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
+	rt6_get_cookie_safe(rt, &cookie);
+
+	return cookie;
 }
 
 static inline void ip6_rt_put(struct rt6_info *rt)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/ip6_route.h linux-libre-4.9.52-gnu/include/net/ip6_route.h
--- linux-libre-4.9-gnu/include/net/ip6_route.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/ip6_route.h	2017-09-27 08:40:05.000000000 -0400
@@ -22,6 +22,7 @@ struct route_info {
 #include <net/flow.h>
 #include <net/ip6_fib.h>
 #include <net/sock.h>
+#include <net/lwtunnel.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
 #include <linux/route.h>
@@ -84,6 +85,7 @@ struct dst_entry *ip6_route_lookup(struc
 struct rt6_info *ip6_pol_route(struct net *net, struct fib6_table *table,
 			       int ifindex, struct flowi6 *fl6, int flags);
 
+void ip6_route_init_special_entries(void);
 int ip6_route_init(void);
 void ip6_route_cleanup(void);
 
@@ -231,4 +233,11 @@ static inline struct in6_addr *rt6_nexth
 		return daddr;
 }
 
+static inline bool rt6_duplicate_nexthop(struct rt6_info *a, struct rt6_info *b)
+{
+	return a->dst.dev == b->dst.dev &&
+	       a->rt6i_idev == b->rt6i_idev &&
+	       ipv6_addr_equal(&a->rt6i_gateway, &b->rt6i_gateway) &&
+	       !lwtunnel_cmp_encap(a->dst.lwtstate, b->dst.lwtstate);
+}
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/ip_fib.h linux-libre-4.9.52-gnu/include/net/ip_fib.h
--- linux-libre-4.9-gnu/include/net/ip_fib.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/ip_fib.h	2017-09-27 08:40:05.000000000 -0400
@@ -114,11 +114,11 @@ struct fib_info {
 	__be32			fib_prefsrc;
 	u32			fib_tb_id;
 	u32			fib_priority;
-	u32			*fib_metrics;
-#define fib_mtu fib_metrics[RTAX_MTU-1]
-#define fib_window fib_metrics[RTAX_WINDOW-1]
-#define fib_rtt fib_metrics[RTAX_RTT-1]
-#define fib_advmss fib_metrics[RTAX_ADVMSS-1]
+	struct dst_metrics	*fib_metrics;
+#define fib_mtu fib_metrics->metrics[RTAX_MTU-1]
+#define fib_window fib_metrics->metrics[RTAX_WINDOW-1]
+#define fib_rtt fib_metrics->metrics[RTAX_RTT-1]
+#define fib_advmss fib_metrics->metrics[RTAX_ADVMSS-1]
 	int			fib_nhs;
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 	int			fib_weight;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/ip.h linux-libre-4.9.52-gnu/include/net/ip.h
--- linux-libre-4.9-gnu/include/net/ip.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/ip.h	2017-09-27 08:40:05.000000000 -0400
@@ -339,7 +339,7 @@ static inline unsigned int ip_dst_mtu_ma
 	    !forwarding)
 		return dst_mtu(dst);
 
-	return min(dst->dev->mtu, IP_MAX_MTU);
+	return min(READ_ONCE(dst->dev->mtu), IP_MAX_MTU);
 }
 
 static inline unsigned int ip_skb_dst_mtu(struct sock *sk,
@@ -351,7 +351,7 @@ static inline unsigned int ip_skb_dst_mt
 		return ip_dst_mtu_maybe_forward(skb_dst(skb), forwarding);
 	}
 
-	return min(skb_dst(skb)->dev->mtu, IP_MAX_MTU);
+	return min(READ_ONCE(skb_dst(skb)->dev->mtu), IP_MAX_MTU);
 }
 
 u32 ip_idents_reserve(u32 hash, int segs);
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/ipv6.h linux-libre-4.9.52-gnu/include/net/ipv6.h
--- linux-libre-4.9-gnu/include/net/ipv6.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/ipv6.h	2017-09-27 08:40:05.000000000 -0400
@@ -776,6 +776,11 @@ static inline __be32 ip6_make_flowlabel(
 {
 	u32 hash;
 
+	/* @flowlabel may include more than a flow label, eg, the traffic class.
+	 * Here we want only the flow label value.
+	 */
+	flowlabel &= IPV6_FLOWLABEL_MASK;
+
 	if (flowlabel ||
 	    net->ipv6.sysctl.auto_flowlabels == IP6_AUTO_FLOW_LABEL_OFF ||
 	    (!autolabel &&
@@ -871,7 +876,7 @@ int ip6_rcv_finish(struct net *net, stru
  *	upper-layer output functions
  */
 int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
-	     struct ipv6_txoptions *opt, int tclass);
+	     __u32 mark, struct ipv6_txoptions *opt, int tclass);
 
 int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
 
@@ -1001,6 +1006,7 @@ int inet6_hash_connect(struct inet_timew
  */
 extern const struct proto_ops inet6_stream_ops;
 extern const struct proto_ops inet6_dgram_ops;
+extern const struct proto_ops inet6_sockraw_ops;
 
 struct group_source_req;
 struct group_filter;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/iw_handler.h linux-libre-4.9.52-gnu/include/net/iw_handler.h
--- linux-libre-4.9-gnu/include/net/iw_handler.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/iw_handler.h	2017-09-27 08:40:05.000000000 -0400
@@ -556,7 +556,8 @@ iwe_stream_add_point(struct iw_request_i
 		memcpy(stream + lcp_len,
 		       ((char *) &iwe->u) + IW_EV_POINT_OFF,
 		       IW_EV_POINT_PK_LEN - IW_EV_LCP_PK_LEN);
-		memcpy(stream + point_len, extra, iwe->u.data.length);
+		if (iwe->u.data.length && extra)
+			memcpy(stream + point_len, extra, iwe->u.data.length);
 		stream += event_len;
 	}
 	return stream;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/lwtunnel.h linux-libre-4.9.52-gnu/include/net/lwtunnel.h
--- linux-libre-4.9-gnu/include/net/lwtunnel.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/lwtunnel.h	2017-09-27 08:40:05.000000000 -0400
@@ -43,13 +43,12 @@ struct lwtunnel_encap_ops {
 	int (*get_encap_size)(struct lwtunnel_state *lwtstate);
 	int (*cmp_encap)(struct lwtunnel_state *a, struct lwtunnel_state *b);
 	int (*xmit)(struct sk_buff *skb);
+
+	struct module *owner;
 };
 
 #ifdef CONFIG_LWTUNNEL
-static inline void lwtstate_free(struct lwtunnel_state *lws)
-{
-	kfree(lws);
-}
+void lwtstate_free(struct lwtunnel_state *lws);
 
 static inline struct lwtunnel_state *
 lwtstate_get(struct lwtunnel_state *lws)
@@ -106,6 +105,8 @@ int lwtunnel_encap_add_ops(const struct
 			   unsigned int num);
 int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
 			   unsigned int num);
+int lwtunnel_valid_encap_type(u16 encap_type);
+int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len);
 int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
 			 struct nlattr *encap,
 			 unsigned int family, const void *cfg,
@@ -169,6 +170,18 @@ static inline int lwtunnel_encap_del_ops
 	return -EOPNOTSUPP;
 }
 
+static inline int lwtunnel_valid_encap_type(u16 encap_type)
+{
+	return -EOPNOTSUPP;
+}
+static inline int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int len)
+{
+	/* return 0 since we are not walking attr looking for
+	 * RTA_ENCAP_TYPE attribute on nexthops.
+	 */
+	return 0;
+}
+
 static inline int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
 				       struct nlattr *encap,
 				       unsigned int family, const void *cfg,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/sch_generic.h linux-libre-4.9.52-gnu/include/net/sch_generic.h
--- linux-libre-4.9-gnu/include/net/sch_generic.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/sch_generic.h	2017-09-27 08:40:05.000000000 -0400
@@ -768,8 +768,11 @@ static inline struct Qdisc *qdisc_replac
 	old = *pold;
 	*pold = new;
 	if (old != NULL) {
-		qdisc_tree_reduce_backlog(old, old->q.qlen, old->qstats.backlog);
+		unsigned int qlen = old->q.qlen;
+		unsigned int backlog = old->qstats.backlog;
+
 		qdisc_reset(old);
+		qdisc_tree_reduce_backlog(old, qlen, backlog);
 	}
 	sch_tree_unlock(sch);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/sctp/sctp.h linux-libre-4.9.52-gnu/include/net/sctp/sctp.h
--- linux-libre-4.9-gnu/include/net/sctp/sctp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/sctp/sctp.h	2017-09-27 08:40:05.000000000 -0400
@@ -460,6 +460,8 @@ _sctp_walk_params((pos), (chunk), ntohs(
 
 #define _sctp_walk_params(pos, chunk, end, member)\
 for (pos.v = chunk->member;\
+     (pos.v + offsetof(struct sctp_paramhdr, length) + sizeof(pos.p->length) <=\
+      (void *)chunk + end) &&\
      pos.v <= (void *)chunk + end - ntohs(pos.p->length) &&\
      ntohs(pos.p->length) >= sizeof(sctp_paramhdr_t);\
      pos.v += SCTP_PAD4(ntohs(pos.p->length)))
@@ -470,6 +472,8 @@ _sctp_walk_errors((err), (chunk_hdr), nt
 #define _sctp_walk_errors(err, chunk_hdr, end)\
 for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \
 	    sizeof(sctp_chunkhdr_t));\
+     ((void *)err + offsetof(sctp_errhdr_t, length) + sizeof(err->length) <=\
+      (void *)chunk_hdr + end) &&\
      (void *)err <= (void *)chunk_hdr + end - ntohs(err->length) &&\
      ntohs(err->length) >= sizeof(sctp_errhdr_t); \
      err = (sctp_errhdr_t *)((void *)err + SCTP_PAD4(ntohs(err->length))))
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/vxlan.h linux-libre-4.9.52-gnu/include/net/vxlan.h
--- linux-libre-4.9-gnu/include/net/vxlan.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/vxlan.h	2017-09-27 08:40:05.000000000 -0400
@@ -221,9 +221,17 @@ struct vxlan_config {
 	bool			no_share;
 };
 
+struct vxlan_dev_node {
+	struct hlist_node hlist;
+	struct vxlan_dev *vxlan;
+};
+
 /* Pseudo network device */
 struct vxlan_dev {
-	struct hlist_node hlist;	/* vni hash table */
+	struct vxlan_dev_node hlist4;	/* vni hash table for IPv4 socket */
+#if IS_ENABLED(CONFIG_IPV6)
+	struct vxlan_dev_node hlist6;	/* vni hash table for IPv6 socket */
+#endif
 	struct list_head  next;		/* vxlan's per namespace list */
 	struct vxlan_sock __rcu *vn4_sock;	/* listening socket for IPv4 */
 #if IS_ENABLED(CONFIG_IPV6)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/net/xfrm.h linux-libre-4.9.52-gnu/include/net/xfrm.h
--- linux-libre-4.9-gnu/include/net/xfrm.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/net/xfrm.h	2017-09-27 08:40:05.000000000 -0400
@@ -944,10 +944,6 @@ struct xfrm_dst {
 	struct flow_cache_object flo;
 	struct xfrm_policy *pols[XFRM_POLICY_TYPE_MAX];
 	int num_pols, num_xfrms;
-#ifdef CONFIG_XFRM_SUB_POLICY
-	struct flowi *origin;
-	struct xfrm_selector *partner;
-#endif
 	u32 xfrm_genid;
 	u32 policy_genid;
 	u32 route_mtu_cached;
@@ -963,12 +959,6 @@ static inline void xfrm_dst_destroy(stru
 	dst_release(xdst->route);
 	if (likely(xdst->u.dst.xfrm))
 		xfrm_state_put(xdst->u.dst.xfrm);
-#ifdef CONFIG_XFRM_SUB_POLICY
-	kfree(xdst->origin);
-	xdst->origin = NULL;
-	kfree(xdst->partner);
-	xdst->partner = NULL;
-#endif
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/rdma/ib_addr.h linux-libre-4.9.52-gnu/include/rdma/ib_addr.h
--- linux-libre-4.9-gnu/include/rdma/ib_addr.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/rdma/ib_addr.h	2017-09-27 08:40:05.000000000 -0400
@@ -205,10 +205,12 @@ static inline void iboe_addr_get_sgid(st
 
 	dev = dev_get_by_index(&init_net, dev_addr->bound_dev_if);
 	if (dev) {
-		ip4 = (struct in_device *)dev->ip_ptr;
-		if (ip4 && ip4->ifa_list && ip4->ifa_list->ifa_address)
+		ip4 = in_dev_get(dev);
+		if (ip4 && ip4->ifa_list && ip4->ifa_list->ifa_address) {
 			ipv6_addr_set_v4mapped(ip4->ifa_list->ifa_address,
 					       (struct in6_addr *)gid);
+			in_dev_put(ip4);
+		}
 		dev_put(dev);
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/include/rdma/ib_sa.h linux-libre-4.9.52-gnu/include/rdma/ib_sa.h
--- linux-libre-4.9-gnu/include/rdma/ib_sa.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/rdma/ib_sa.h	2017-09-27 08:40:05.000000000 -0400
@@ -153,12 +153,12 @@ struct ib_sa_path_rec {
 	union ib_gid sgid;
 	__be16       dlid;
 	__be16       slid;
-	int          raw_traffic;
+	u8           raw_traffic;
 	/* reserved */
 	__be32       flow_label;
 	u8           hop_limit;
 	u8           traffic_class;
-	int          reversible;
+	u8           reversible;
 	u8           numb_path;
 	__be16       pkey;
 	__be16       qos_class;
@@ -220,7 +220,7 @@ struct ib_sa_mcmember_rec {
 	u8           hop_limit;
 	u8           scope;
 	u8           join_state;
-	int          proxy_join;
+	u8           proxy_join;
 };
 
 /* Service Record Component Mask Sec 15.2.5.14 Ver 1.1	*/
diff -druNp --no-dereference linux-libre-4.9-gnu/include/scsi/libiscsi.h linux-libre-4.9.52-gnu/include/scsi/libiscsi.h
--- linux-libre-4.9-gnu/include/scsi/libiscsi.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/scsi/libiscsi.h	2017-09-27 08:40:05.000000000 -0400
@@ -196,6 +196,7 @@ struct iscsi_conn {
 	struct iscsi_task	*task;		/* xmit task in progress */
 
 	/* xmit */
+	spinlock_t		taskqueuelock;  /* protects the next three lists */
 	struct list_head	mgmtqueue;	/* mgmt (control) xmit queue */
 	struct list_head	cmdqueue;	/* data-path cmd queue */
 	struct list_head	requeue;	/* tasks needing another run */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/scsi/scsi_device.h linux-libre-4.9.52-gnu/include/scsi/scsi_device.h
--- linux-libre-4.9-gnu/include/scsi/scsi_device.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/scsi/scsi_device.h	2017-09-27 08:40:05.000000000 -0400
@@ -248,6 +248,7 @@ enum scsi_target_state {
 	STARGET_CREATED = 1,
 	STARGET_RUNNING,
 	STARGET_REMOVE,
+	STARGET_CREATED_REMOVE,
 	STARGET_DEL,
 };
 
@@ -315,6 +316,7 @@ extern void scsi_remove_device(struct sc
 extern int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh);
 void scsi_attach_vpd(struct scsi_device *sdev);
 
+extern struct scsi_device *scsi_device_from_queue(struct request_queue *q);
 extern int scsi_device_get(struct scsi_device *);
 extern void scsi_device_put(struct scsi_device *);
 extern struct scsi_device *scsi_device_lookup(struct Scsi_Host *,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/soc/at91/at91sam9_ddrsdr.h linux-libre-4.9.52-gnu/include/soc/at91/at91sam9_ddrsdr.h
--- linux-libre-4.9-gnu/include/soc/at91/at91sam9_ddrsdr.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/soc/at91/at91sam9_ddrsdr.h	2017-09-27 08:40:05.000000000 -0400
@@ -81,6 +81,7 @@
 #define			AT91_DDRSDRC_LPCB_POWER_DOWN		2
 #define			AT91_DDRSDRC_LPCB_DEEP_POWER_DOWN	3
 #define		AT91_DDRSDRC_CLKFR	(1 << 2)	/* Clock Frozen */
+#define		AT91_DDRSDRC_LPDDR2_PWOFF	(1 << 3)	/* LPDDR Power Off */
 #define		AT91_DDRSDRC_PASR	(7 << 4)	/* Partial Array Self Refresh */
 #define		AT91_DDRSDRC_TCSR	(3 << 8)	/* Temperature Compensated Self Refresh */
 #define		AT91_DDRSDRC_DS		(3 << 10)	/* Drive Strength */
@@ -96,7 +97,9 @@
 #define			AT91_DDRSDRC_MD_SDR		0
 #define			AT91_DDRSDRC_MD_LOW_POWER_SDR	1
 #define			AT91_DDRSDRC_MD_LOW_POWER_DDR	3
+#define			AT91_DDRSDRC_MD_LPDDR3		5
 #define			AT91_DDRSDRC_MD_DDR2		6	/* [SAM9 Only] */
+#define			AT91_DDRSDRC_MD_LPDDR2		7
 #define		AT91_DDRSDRC_DBW	(1 << 4)		/* Data Bus Width */
 #define			AT91_DDRSDRC_DBW_32BITS		(0 <<  4)
 #define			AT91_DDRSDRC_DBW_16BITS		(1 <<  4)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/sound/hdmi-codec.h linux-libre-4.9.52-gnu/include/sound/hdmi-codec.h
--- linux-libre-4.9-gnu/include/sound/hdmi-codec.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/sound/hdmi-codec.h	2017-09-27 08:40:05.000000000 -0400
@@ -36,10 +36,10 @@ struct hdmi_codec_daifmt {
 		HDMI_AC97,
 		HDMI_SPDIF,
 	} fmt;
-	int bit_clk_inv:1;
-	int frame_clk_inv:1;
-	int bit_clk_master:1;
-	int frame_clk_master:1;
+	unsigned int bit_clk_inv:1;
+	unsigned int frame_clk_inv:1;
+	unsigned int bit_clk_master:1;
+	unsigned int frame_clk_master:1;
 };
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/include/target/iscsi/iscsi_target_core.h linux-libre-4.9.52-gnu/include/target/iscsi/iscsi_target_core.h
--- linux-libre-4.9-gnu/include/target/iscsi/iscsi_target_core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/target/iscsi/iscsi_target_core.h	2017-09-27 08:40:05.000000000 -0400
@@ -64,6 +64,14 @@
 #define TA_DEFAULT_FABRIC_PROT_TYPE	0
 /* TPG status needs to be enabled to return sendtargets discovery endpoint info */
 #define TA_DEFAULT_TPG_ENABLED_SENDTARGETS 1
+/*
+ * Used to control the sending of keys with optional to respond state bit,
+ * as a workaround for non RFC compliant initiators,that do not propose,
+ * nor respond to specific keys required for login to complete.
+ *
+ * See iscsi_check_proposer_for_optional_reply() for more details.
+ */
+#define TA_DEFAULT_LOGIN_KEYS_WORKAROUND 1
 
 #define ISCSI_IOV_DATA_BUFFER		5
 
@@ -555,6 +563,7 @@ struct iscsi_conn {
 #define LOGIN_FLAGS_READ_ACTIVE		1
 #define LOGIN_FLAGS_CLOSED		2
 #define LOGIN_FLAGS_READY		4
+#define LOGIN_FLAGS_INITIAL_PDU		8
 	unsigned long		login_flags;
 	struct delayed_work	login_work;
 	struct delayed_work	login_cleanup_work;
@@ -766,6 +775,7 @@ struct iscsi_tpg_attrib {
 	u8			t10_pi;
 	u32			fabric_prot_type;
 	u32			tpg_enabled_sendtargets;
+	u32			login_keys_workaround;
 	struct iscsi_portal_group *tpg;
 };
 
@@ -775,6 +785,7 @@ struct iscsi_np {
 	int			np_sock_type;
 	enum np_thread_state_table np_thread_state;
 	bool                    enabled;
+	atomic_t		np_reset_count;
 	enum iscsi_timer_flags_table np_login_timer_flags;
 	u32			np_exports;
 	enum np_flags_table	np_flags;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/target/target_core_base.h linux-libre-4.9.52-gnu/include/target/target_core_base.h
--- linux-libre-4.9-gnu/include/target/target_core_base.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/target/target_core_base.h	2017-09-27 08:40:05.000000000 -0400
@@ -538,6 +538,7 @@ struct se_node_acl {
 	char			initiatorname[TRANSPORT_IQN_LEN];
 	/* Used to signal demo mode created ACL, disabled by default */
 	bool			dynamic_node_acl;
+	bool			dynamic_stop;
 	u32			queue_depth;
 	u32			acl_index;
 	enum target_prot_type	saved_prot_type;
@@ -704,6 +705,7 @@ struct se_lun {
 	u64			unpacked_lun;
 #define SE_LUN_LINK_MAGIC			0xffff7771
 	u32			lun_link_magic;
+	bool			lun_shutdown;
 	bool			lun_access_ro;
 	u32			lun_index;
 
@@ -731,6 +733,7 @@ struct se_lun {
 	struct config_group	lun_group;
 	struct se_port_stat_grps port_stat_grps;
 	struct completion	lun_ref_comp;
+	struct completion	lun_shutdown_comp;
 	struct percpu_ref	lun_ref;
 	struct list_head	lun_dev_link;
 	struct hlist_node	link;
diff -druNp --no-dereference linux-libre-4.9-gnu/include/trace/events/btrfs.h linux-libre-4.9.52-gnu/include/trace/events/btrfs.h
--- linux-libre-4.9-gnu/include/trace/events/btrfs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/trace/events/btrfs.h	2017-09-27 08:40:05.000000000 -0400
@@ -1162,22 +1162,26 @@ DECLARE_EVENT_CLASS(btrfs__work,
 		   __entry->func, __entry->ordered_func, __entry->ordered_free)
 );
 
-/* For situiations that the work is freed */
+/*
+ * For situiations when the work is freed, we pass fs_info and a tag that that
+ * matches address of the work structure so it can be paired with the
+ * scheduling event.
+ */
 DECLARE_EVENT_CLASS(btrfs__work__done,
 
-	TP_PROTO(struct btrfs_work *work),
+	TP_PROTO(struct btrfs_fs_info *fs_info, void *wtag),
 
-	TP_ARGS(work),
+	TP_ARGS(fs_info, wtag),
 
 	TP_STRUCT__entry_btrfs(
-		__field(	void *,	work			)
+		__field(	void *,	wtag			)
 	),
 
-	TP_fast_assign_btrfs(btrfs_work_owner(work),
-		__entry->work		= work;
+	TP_fast_assign_btrfs(fs_info,
+		__entry->wtag		= wtag;
 	),
 
-	TP_printk_btrfs("work->%p", __entry->work)
+	TP_printk_btrfs("work->%p", __entry->wtag)
 );
 
 DEFINE_EVENT(btrfs__work, btrfs_work_queued,
@@ -1196,9 +1200,9 @@ DEFINE_EVENT(btrfs__work, btrfs_work_sch
 
 DEFINE_EVENT(btrfs__work__done, btrfs_all_work_done,
 
-	TP_PROTO(struct btrfs_work *work),
+	TP_PROTO(struct btrfs_fs_info *fs_info, void *wtag),
 
-	TP_ARGS(work)
+	TP_ARGS(fs_info, wtag)
 );
 
 DEFINE_EVENT(btrfs__work, btrfs_ordered_sched,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/trace/events/swiotlb.h linux-libre-4.9.52-gnu/include/trace/events/swiotlb.h
--- linux-libre-4.9-gnu/include/trace/events/swiotlb.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/trace/events/swiotlb.h	2017-09-27 08:40:05.000000000 -0400
@@ -11,16 +11,16 @@ TRACE_EVENT(swiotlb_bounced,
 	TP_PROTO(struct device *dev,
 		 dma_addr_t dev_addr,
 		 size_t size,
-		 int swiotlb_force),
+		 enum swiotlb_force swiotlb_force),
 
 	TP_ARGS(dev, dev_addr, size, swiotlb_force),
 
 	TP_STRUCT__entry(
-		__string(	dev_name,	dev_name(dev)	)
-		__field(	u64,	dma_mask		)
-		__field(	dma_addr_t,	dev_addr	)
-		__field(	size_t,	size			)
-		__field(	int,	swiotlb_force		)
+		__string(	dev_name,	dev_name(dev)		)
+		__field(	u64,	dma_mask			)
+		__field(	dma_addr_t,	dev_addr		)
+		__field(	size_t,	size				)
+		__field(	enum swiotlb_force,	swiotlb_force	)
 	),
 
 	TP_fast_assign(
@@ -37,7 +37,10 @@ TRACE_EVENT(swiotlb_bounced,
 		__entry->dma_mask,
 		(unsigned long long)__entry->dev_addr,
 		__entry->size,
-		__entry->swiotlb_force ? "swiotlb_force" : "" )
+		__print_symbolic(__entry->swiotlb_force,
+			{ SWIOTLB_NORMAL,	"NORMAL" },
+			{ SWIOTLB_FORCE,	"FORCE" },
+			{ SWIOTLB_NO_FORCE,	"NO_FORCE" }))
 );
 
 #endif /*  _TRACE_SWIOTLB_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/trace/events/syscalls.h linux-libre-4.9.52-gnu/include/trace/events/syscalls.h
--- linux-libre-4.9-gnu/include/trace/events/syscalls.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/trace/events/syscalls.h	2017-09-27 08:40:05.000000000 -0400
@@ -1,5 +1,6 @@
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM raw_syscalls
+#undef TRACE_INCLUDE_FILE
 #define TRACE_INCLUDE_FILE syscalls
 
 #if !defined(_TRACE_EVENTS_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/ethtool.h linux-libre-4.9.52-gnu/include/uapi/linux/ethtool.h
--- linux-libre-4.9-gnu/include/uapi/linux/ethtool.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/ethtool.h	2017-09-27 08:40:05.000000000 -0400
@@ -1368,6 +1368,8 @@ enum ethtool_link_mode_bit_indices {
 	ETHTOOL_LINK_MODE_10000baseLR_Full_BIT	= 44,
 	ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT	= 45,
 	ETHTOOL_LINK_MODE_10000baseER_Full_BIT	= 46,
+	ETHTOOL_LINK_MODE_2500baseT_Full_BIT	= 47,
+	ETHTOOL_LINK_MODE_5000baseT_Full_BIT	= 48,
 
 
 	/* Last allowed bit for __ETHTOOL_LINK_MODE_LEGACY_MASK is bit
@@ -1377,7 +1379,7 @@ enum ethtool_link_mode_bit_indices {
 	 */
 
 	__ETHTOOL_LINK_MODE_LAST
-	  = ETHTOOL_LINK_MODE_10000baseER_Full_BIT,
+	  = ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
 };
 
 #define __ETHTOOL_LINK_MODE_LEGACY_MASK(base_name)	\
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/fs.h linux-libre-4.9.52-gnu/include/uapi/linux/fs.h
--- linux-libre-4.9-gnu/include/uapi/linux/fs.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/fs.h	2017-09-27 08:40:05.000000000 -0400
@@ -132,6 +132,7 @@ struct inodes_stat_t {
 #define MS_LAZYTIME	(1<<25) /* Update the on-disk [acm]times lazily */
 
 /* These sb flags are internal to the kernel */
+#define MS_SUBMOUNT     (1<<26)
 #define MS_NOREMOTELOCK	(1<<27)
 #define MS_NOSEC	(1<<28)
 #define MS_BORN		(1<<29)
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/ipv6_route.h linux-libre-4.9.52-gnu/include/uapi/linux/ipv6_route.h
--- linux-libre-4.9-gnu/include/uapi/linux/ipv6_route.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/ipv6_route.h	2017-09-27 08:40:05.000000000 -0400
@@ -34,7 +34,7 @@
 #define RTF_PREF(pref)	((pref) << 27)
 #define RTF_PREF_MASK	0x18000000
 
-#define RTF_PCPU	0x40000000
+#define RTF_PCPU	0x40000000	/* read-only: can not be set by user */
 #define RTF_LOCAL	0x80000000
 
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/netfilter/nf_log.h linux-libre-4.9.52-gnu/include/uapi/linux/netfilter/nf_log.h
--- linux-libre-4.9-gnu/include/uapi/linux/netfilter/nf_log.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/netfilter/nf_log.h	2017-09-27 08:40:05.000000000 -0400
@@ -9,4 +9,6 @@
 #define NF_LOG_MACDECODE	0x20	/* Decode MAC header */
 #define NF_LOG_MASK		0x2f
 
+#define NF_LOG_PREFIXLEN	128
+
 #endif /* _NETFILTER_NF_LOG_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/nl80211.h linux-libre-4.9.52-gnu/include/uapi/linux/nl80211.h
--- linux-libre-4.9-gnu/include/uapi/linux/nl80211.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/nl80211.h	2017-09-27 08:40:05.000000000 -0400
@@ -323,7 +323,7 @@
  * @NL80211_CMD_GET_SCAN: get scan results
  * @NL80211_CMD_TRIGGER_SCAN: trigger a new scan with the given parameters
  *	%NL80211_ATTR_TX_NO_CCK_RATE is used to decide whether to send the
- *	probe requests at CCK rate or not. %NL80211_ATTR_MAC can be used to
+ *	probe requests at CCK rate or not. %NL80211_ATTR_BSSID can be used to
  *	specify a BSSID to scan for; if not included, the wildcard BSSID will
  *	be used.
  * @NL80211_CMD_NEW_SCAN_RESULTS: scan notification (as a reply to
@@ -1937,6 +1937,9 @@ enum nl80211_commands {
  * @NL80211_ATTR_NAN_MATCH: used to report a match. This is a nested attribute.
  *	See &enum nl80211_nan_match_attributes.
  *
+ * @NL80211_ATTR_BSSID: The BSSID of the AP. Note that %NL80211_ATTR_MAC is also
+ *	used in various commands/events for specifying the BSSID.
+ *
  * @NUM_NL80211_ATTR: total number of nl80211_attrs available
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
@@ -2336,6 +2339,8 @@ enum nl80211_attrs {
 	NL80211_ATTR_NAN_FUNC,
 	NL80211_ATTR_NAN_MATCH,
 
+	NL80211_ATTR_BSSID,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/packet_diag.h linux-libre-4.9.52-gnu/include/uapi/linux/packet_diag.h
--- linux-libre-4.9-gnu/include/uapi/linux/packet_diag.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/packet_diag.h	2017-09-27 08:40:05.000000000 -0400
@@ -64,7 +64,7 @@ struct packet_diag_mclist {
 	__u32	pdmc_count;
 	__u16	pdmc_type;
 	__u16	pdmc_alen;
-	__u8	pdmc_addr[MAX_ADDR_LEN];
+	__u8	pdmc_addr[32]; /* MAX_ADDR_LEN */
 };
 
 struct packet_diag_ring {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/usb/ch11.h linux-libre-4.9.52-gnu/include/uapi/linux/usb/ch11.h
--- linux-libre-4.9-gnu/include/uapi/linux/usb/ch11.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/usb/ch11.h	2017-09-27 08:40:05.000000000 -0400
@@ -22,6 +22,9 @@
  */
 #define USB_MAXCHILDREN		31
 
+/* See USB 3.1 spec Table 10-5 */
+#define USB_SS_MAXPORTS		15
+
 /*
  * Hub request types
  */
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/linux/videodev2.h linux-libre-4.9.52-gnu/include/uapi/linux/videodev2.h
--- linux-libre-4.9-gnu/include/uapi/linux/videodev2.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/linux/videodev2.h	2017-09-27 08:40:05.000000000 -0400
@@ -349,8 +349,8 @@ enum v4l2_quantization {
 	/*
 	 * The default for R'G'B' quantization is always full range, except
 	 * for the BT2020 colorspace. For Y'CbCr the quantization is always
-	 * limited range, except for COLORSPACE_JPEG, SRGB, ADOBERGB,
-	 * XV601 or XV709: those are full range.
+	 * limited range, except for COLORSPACE_JPEG, XV601 or XV709: those
+	 * are full range.
 	 */
 	V4L2_QUANTIZATION_DEFAULT     = 0,
 	V4L2_QUANTIZATION_FULL_RANGE  = 1,
@@ -365,8 +365,7 @@ enum v4l2_quantization {
 #define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \
 	(((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \
 	 (((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \
-	  (ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) || \
-	  (colsp) == V4L2_COLORSPACE_ADOBERGB || (colsp) == V4L2_COLORSPACE_SRGB ? \
+	  (ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) ? \
 	 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
 
 enum v4l2_priority {
diff -druNp --no-dereference linux-libre-4.9-gnu/include/uapi/rdma/cxgb3-abi.h linux-libre-4.9.52-gnu/include/uapi/rdma/cxgb3-abi.h
--- linux-libre-4.9-gnu/include/uapi/rdma/cxgb3-abi.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/uapi/rdma/cxgb3-abi.h	2017-09-27 08:40:05.000000000 -0400
@@ -30,7 +30,7 @@
  * SOFTWARE.
  */
 #ifndef CXGB3_ABI_USER_H
-#define CXBG3_ABI_USER_H
+#define CXGB3_ABI_USER_H
 
 #include <linux/types.h>
 
diff -druNp --no-dereference linux-libre-4.9-gnu/include/xen/xen.h linux-libre-4.9.52-gnu/include/xen/xen.h
--- linux-libre-4.9-gnu/include/xen/xen.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/include/xen/xen.h	2017-09-27 08:40:05.000000000 -0400
@@ -38,7 +38,8 @@ extern enum xen_domain_type xen_domain_t
  */
 #include <xen/features.h>
 #define xen_pvh_domain() (xen_pv_domain() && \
-			  xen_feature(XENFEAT_auto_translated_physmap))
+			  xen_feature(XENFEAT_auto_translated_physmap) && \
+			  xen_have_vector_callback)
 #else
 #define xen_pvh_domain()	(0)
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/init/main.c linux-libre-4.9.52-gnu/init/main.c
--- linux-libre-4.9-gnu/init/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/init/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -868,7 +868,6 @@ static void __init do_basic_setup(void)
 	do_ctors();
 	usermodehelper_enable();
 	do_initcalls();
-	random_int_secret_init();
 }
 
 static void __init do_pre_smp_initcalls(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/ipc/mqueue.c linux-libre-4.9.52-gnu/ipc/mqueue.c
--- linux-libre-4.9-gnu/ipc/mqueue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/ipc/mqueue.c	2017-09-27 08:40:05.000000000 -0400
@@ -1249,8 +1249,10 @@ retry:
 
 			timeo = MAX_SCHEDULE_TIMEOUT;
 			ret = netlink_attachskb(sock, nc, &timeo, NULL);
-			if (ret == 1)
+			if (ret == 1) {
+				sock = NULL;
 				goto retry;
+			}
 			if (ret) {
 				sock = NULL;
 				nc = NULL;
diff -druNp --no-dereference linux-libre-4.9-gnu/ipc/shm.c linux-libre-4.9.52-gnu/ipc/shm.c
--- linux-libre-4.9-gnu/ipc/shm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/ipc/shm.c	2017-09-27 08:40:05.000000000 -0400
@@ -1085,8 +1085,8 @@ out_unlock1:
  * "raddr" thing points to kernel space, and there has to be a wrapper around
  * this.
  */
-long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
-	      unsigned long shmlba)
+long do_shmat(int shmid, char __user *shmaddr, int shmflg,
+	      ulong *raddr, unsigned long shmlba)
 {
 	struct shmid_kernel *shp;
 	unsigned long addr;
@@ -1107,8 +1107,13 @@ long do_shmat(int shmid, char __user *sh
 		goto out;
 	else if ((addr = (ulong)shmaddr)) {
 		if (addr & (shmlba - 1)) {
-			if (shmflg & SHM_RND)
-				addr &= ~(shmlba - 1);	   /* round down */
+			/*
+			 * Round down to the nearest multiple of shmlba.
+			 * For sane do_mmap_pgoff() parameters, avoid
+			 * round downs that trigger nil-page and MAP_FIXED.
+			 */
+			if ((shmflg & SHM_RND) && addr >= shmlba)
+				addr &= ~(shmlba - 1);
 			else
 #ifndef __ARCH_FORCE_SHMLBA
 				if (addr & ~PAGE_MASK)
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/audit_watch.c linux-libre-4.9.52-gnu/kernel/audit_watch.c
--- linux-libre-4.9-gnu/kernel/audit_watch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/audit_watch.c	2017-09-27 08:40:05.000000000 -0400
@@ -457,13 +457,15 @@ void audit_remove_watch_rule(struct audi
 	list_del(&krule->rlist);
 
 	if (list_empty(&watch->rules)) {
+		/*
+		 * audit_remove_watch() drops our reference to 'parent' which
+		 * can get freed. Grab our own reference to be safe.
+		 */
+		audit_get_parent(parent);
 		audit_remove_watch(watch);
-
-		if (list_empty(&parent->watches)) {
-			audit_get_parent(parent);
+		if (list_empty(&parent->watches))
 			fsnotify_destroy_mark(&parent->mark, audit_watch_group);
-			audit_put_parent(parent);
-		}
+		audit_put_parent(parent);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/bpf/arraymap.c linux-libre-4.9.52-gnu/kernel/bpf/arraymap.c
--- linux-libre-4.9-gnu/kernel/bpf/arraymap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/bpf/arraymap.c	2017-09-27 08:40:05.000000000 -0400
@@ -11,7 +11,6 @@
  */
 #include <linux/bpf.h>
 #include <linux/err.h>
-#include <linux/vmalloc.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/filter.h>
@@ -74,14 +73,10 @@ static struct bpf_map *array_map_alloc(u
 	if (array_size >= U32_MAX - PAGE_SIZE)
 		return ERR_PTR(-ENOMEM);
 
-
 	/* allocate all map elements and zero-initialize them */
-	array = kzalloc(array_size, GFP_USER | __GFP_NOWARN);
-	if (!array) {
-		array = vzalloc(array_size);
-		if (!array)
-			return ERR_PTR(-ENOMEM);
-	}
+	array = bpf_map_area_alloc(array_size);
+	if (!array)
+		return ERR_PTR(-ENOMEM);
 
 	/* copy mandatory map attributes */
 	array->map.map_type = attr->map_type;
@@ -97,7 +92,7 @@ static struct bpf_map *array_map_alloc(u
 
 	if (array_size >= U32_MAX - PAGE_SIZE ||
 	    elem_size > PCPU_MIN_UNIT_SIZE || bpf_array_alloc_percpu(array)) {
-		kvfree(array);
+		bpf_map_area_free(array);
 		return ERR_PTR(-ENOMEM);
 	}
 out:
@@ -262,7 +257,7 @@ static void array_map_free(struct bpf_ma
 	if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY)
 		bpf_array_free_percpu(array);
 
-	kvfree(array);
+	bpf_map_area_free(array);
 }
 
 static const struct bpf_map_ops array_ops = {
@@ -319,7 +314,8 @@ static void fd_array_map_free(struct bpf
 	/* make sure it's empty */
 	for (i = 0; i < array->map.max_entries; i++)
 		BUG_ON(array->ptrs[i] != NULL);
-	kvfree(array);
+
+	bpf_map_area_free(array);
 }
 
 static void *fd_array_map_lookup_elem(struct bpf_map *map, void *key)
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/bpf/hashtab.c linux-libre-4.9.52-gnu/kernel/bpf/hashtab.c
--- linux-libre-4.9-gnu/kernel/bpf/hashtab.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/bpf/hashtab.c	2017-09-27 08:40:05.000000000 -0400
@@ -13,7 +13,6 @@
 #include <linux/bpf.h>
 #include <linux/jhash.h>
 #include <linux/filter.h>
-#include <linux/vmalloc.h>
 #include "percpu_freelist.h"
 
 struct bucket {
@@ -84,14 +83,15 @@ static void htab_free_elems(struct bpf_h
 		free_percpu(pptr);
 	}
 free_elems:
-	vfree(htab->elems);
+	bpf_map_area_free(htab->elems);
 }
 
 static int prealloc_elems_and_freelist(struct bpf_htab *htab)
 {
 	int err = -ENOMEM, i;
 
-	htab->elems = vzalloc(htab->elem_size * htab->map.max_entries);
+	htab->elems = bpf_map_area_alloc(htab->elem_size *
+					 htab->map.max_entries);
 	if (!htab->elems)
 		return -ENOMEM;
 
@@ -227,14 +227,10 @@ static struct bpf_map *htab_map_alloc(un
 		goto free_htab;
 
 	err = -ENOMEM;
-	htab->buckets = kmalloc_array(htab->n_buckets, sizeof(struct bucket),
-				      GFP_USER | __GFP_NOWARN);
-
-	if (!htab->buckets) {
-		htab->buckets = vmalloc(htab->n_buckets * sizeof(struct bucket));
-		if (!htab->buckets)
-			goto free_htab;
-	}
+	htab->buckets = bpf_map_area_alloc(htab->n_buckets *
+					   sizeof(struct bucket));
+	if (!htab->buckets)
+		goto free_htab;
 
 	for (i = 0; i < htab->n_buckets; i++) {
 		INIT_HLIST_HEAD(&htab->buckets[i].head);
@@ -258,7 +254,7 @@ static struct bpf_map *htab_map_alloc(un
 free_extra_elems:
 	free_percpu(htab->extra_elems);
 free_buckets:
-	kvfree(htab->buckets);
+	bpf_map_area_free(htab->buckets);
 free_htab:
 	kfree(htab);
 	return ERR_PTR(err);
@@ -715,7 +711,7 @@ static void htab_map_free(struct bpf_map
 		pcpu_freelist_destroy(&htab->freelist);
 	}
 	free_percpu(htab->extra_elems);
-	kvfree(htab->buckets);
+	bpf_map_area_free(htab->buckets);
 	kfree(htab);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/bpf/stackmap.c linux-libre-4.9.52-gnu/kernel/bpf/stackmap.c
--- linux-libre-4.9-gnu/kernel/bpf/stackmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/bpf/stackmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -7,7 +7,6 @@
 #include <linux/bpf.h>
 #include <linux/jhash.h>
 #include <linux/filter.h>
-#include <linux/vmalloc.h>
 #include <linux/stacktrace.h>
 #include <linux/perf_event.h>
 #include "percpu_freelist.h"
@@ -32,7 +31,7 @@ static int prealloc_elems_and_freelist(s
 	u32 elem_size = sizeof(struct stack_map_bucket) + smap->map.value_size;
 	int err;
 
-	smap->elems = vzalloc(elem_size * smap->map.max_entries);
+	smap->elems = bpf_map_area_alloc(elem_size * smap->map.max_entries);
 	if (!smap->elems)
 		return -ENOMEM;
 
@@ -45,7 +44,7 @@ static int prealloc_elems_and_freelist(s
 	return 0;
 
 free_elems:
-	vfree(smap->elems);
+	bpf_map_area_free(smap->elems);
 	return err;
 }
 
@@ -76,12 +75,9 @@ static struct bpf_map *stack_map_alloc(u
 	if (cost >= U32_MAX - PAGE_SIZE)
 		return ERR_PTR(-E2BIG);
 
-	smap = kzalloc(cost, GFP_USER | __GFP_NOWARN);
-	if (!smap) {
-		smap = vzalloc(cost);
-		if (!smap)
-			return ERR_PTR(-ENOMEM);
-	}
+	smap = bpf_map_area_alloc(cost);
+	if (!smap)
+		return ERR_PTR(-ENOMEM);
 
 	err = -E2BIG;
 	cost += n_buckets * (value_size + sizeof(struct stack_map_bucket));
@@ -112,7 +108,7 @@ static struct bpf_map *stack_map_alloc(u
 put_buffers:
 	put_callchain_buffers();
 free_smap:
-	kvfree(smap);
+	bpf_map_area_free(smap);
 	return ERR_PTR(err);
 }
 
@@ -262,9 +258,9 @@ static void stack_map_free(struct bpf_ma
 	/* wait for bpf programs to complete before freeing stack map */
 	synchronize_rcu();
 
-	vfree(smap->elems);
+	bpf_map_area_free(smap->elems);
 	pcpu_freelist_destroy(&smap->freelist);
-	kvfree(smap);
+	bpf_map_area_free(smap);
 	put_callchain_buffers();
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/bpf/syscall.c linux-libre-4.9.52-gnu/kernel/bpf/syscall.c
--- linux-libre-4.9-gnu/kernel/bpf/syscall.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/bpf/syscall.c	2017-09-27 08:40:05.000000000 -0400
@@ -12,6 +12,8 @@
 #include <linux/bpf.h>
 #include <linux/syscalls.h>
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mmzone.h>
 #include <linux/anon_inodes.h>
 #include <linux/file.h>
 #include <linux/license.h>
@@ -48,6 +50,30 @@ void bpf_register_map_type(struct bpf_ma
 	list_add(&tl->list_node, &bpf_map_types);
 }
 
+void *bpf_map_area_alloc(size_t size)
+{
+	/* We definitely need __GFP_NORETRY, so OOM killer doesn't
+	 * trigger under memory pressure as we really just want to
+	 * fail instead.
+	 */
+	const gfp_t flags = __GFP_NOWARN | __GFP_NORETRY | __GFP_ZERO;
+	void *area;
+
+	if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
+		area = kmalloc(size, GFP_USER | flags);
+		if (area != NULL)
+			return area;
+	}
+
+	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | flags,
+			 PAGE_KERNEL);
+}
+
+void bpf_map_area_free(void *area)
+{
+	kvfree(area);
+}
+
 int bpf_map_precharge_memlock(u32 pages)
 {
 	struct user_struct *user = get_current_user();
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/bpf/verifier.c linux-libre-4.9.52-gnu/kernel/bpf/verifier.c
--- linux-libre-4.9-gnu/kernel/bpf/verifier.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/bpf/verifier.c	2017-09-27 08:40:05.000000000 -0400
@@ -139,7 +139,7 @@ struct bpf_verifier_stack_elem {
 	struct bpf_verifier_stack_elem *next;
 };
 
-#define BPF_COMPLEXITY_LIMIT_INSNS	65536
+#define BPF_COMPLEXITY_LIMIT_INSNS	98304
 #define BPF_COMPLEXITY_LIMIT_STACK	1024
 
 struct bpf_call_arg_meta {
@@ -212,9 +212,10 @@ static void print_verifier_state(struct
 		else if (t == CONST_PTR_TO_MAP || t == PTR_TO_MAP_VALUE ||
 			 t == PTR_TO_MAP_VALUE_OR_NULL ||
 			 t == PTR_TO_MAP_VALUE_ADJ)
-			verbose("(ks=%d,vs=%d)",
+			verbose("(ks=%d,vs=%d,id=%u)",
 				reg->map_ptr->key_size,
-				reg->map_ptr->value_size);
+				reg->map_ptr->value_size,
+				reg->id);
 		if (reg->min_value != BPF_REGISTER_MIN_RANGE)
 			verbose(",min_value=%lld",
 				(long long)reg->min_value);
@@ -278,7 +279,8 @@ static const char *const bpf_jmp_string[
 	[BPF_EXIT >> 4] = "exit",
 };
 
-static void print_bpf_insn(struct bpf_insn *insn)
+static void print_bpf_insn(const struct bpf_verifier_env *env,
+			   const struct bpf_insn *insn)
 {
 	u8 class = BPF_CLASS(insn->code);
 
@@ -342,9 +344,19 @@ static void print_bpf_insn(struct bpf_in
 				insn->code,
 				bpf_ldst_string[BPF_SIZE(insn->code) >> 3],
 				insn->src_reg, insn->imm);
-		} else if (BPF_MODE(insn->code) == BPF_IMM) {
-			verbose("(%02x) r%d = 0x%x\n",
-				insn->code, insn->dst_reg, insn->imm);
+		} else if (BPF_MODE(insn->code) == BPF_IMM &&
+			   BPF_SIZE(insn->code) == BPF_DW) {
+			/* At this point, we already made sure that the second
+			 * part of the ldimm64 insn is accessible.
+			 */
+			u64 imm = ((u64)(insn + 1)->imm << 32) | (u32)insn->imm;
+			bool map_ptr = insn->src_reg == BPF_PSEUDO_MAP_FD;
+
+			if (map_ptr && !env->allow_ptr_leaks)
+				imm = 0;
+
+			verbose("(%02x) r%d = 0x%llx\n", insn->code,
+				insn->dst_reg, (unsigned long long)imm);
 		} else {
 			verbose("BUG_ld_%02x\n", insn->code);
 			return;
@@ -443,13 +455,19 @@ static void init_reg_state(struct bpf_re
 	regs[BPF_REG_1].type = PTR_TO_CTX;
 }
 
-static void mark_reg_unknown_value(struct bpf_reg_state *regs, u32 regno)
+static void __mark_reg_unknown_value(struct bpf_reg_state *regs, u32 regno)
 {
-	BUG_ON(regno >= MAX_BPF_REG);
 	regs[regno].type = UNKNOWN_VALUE;
+	regs[regno].id = 0;
 	regs[regno].imm = 0;
 }
 
+static void mark_reg_unknown_value(struct bpf_reg_state *regs, u32 regno)
+{
+	BUG_ON(regno >= MAX_BPF_REG);
+	__mark_reg_unknown_value(regs, regno);
+}
+
 static void reset_reg_range_values(struct bpf_reg_state *regs, u32 regno)
 {
 	regs[regno].min_value = BPF_REGISTER_MIN_RANGE;
@@ -664,12 +682,13 @@ static int check_ctx_access(struct bpf_v
 	return -EACCES;
 }
 
-static bool is_pointer_value(struct bpf_verifier_env *env, int regno)
+static bool __is_pointer_value(bool allow_ptr_leaks,
+			       const struct bpf_reg_state *reg)
 {
-	if (env->allow_ptr_leaks)
+	if (allow_ptr_leaks)
 		return false;
 
-	switch (env->cur_state.regs[regno].type) {
+	switch (reg->type) {
 	case UNKNOWN_VALUE:
 	case CONST_IMM:
 		return false;
@@ -678,6 +697,11 @@ static bool is_pointer_value(struct bpf_
 	}
 }
 
+static bool is_pointer_value(struct bpf_verifier_env *env, int regno)
+{
+	return __is_pointer_value(env->allow_ptr_leaks, &env->cur_state.regs[regno]);
+}
+
 static int check_ptr_alignment(struct bpf_verifier_env *env,
 			       struct bpf_reg_state *reg, int off, int size)
 {
@@ -867,6 +891,11 @@ static int check_xadd(struct bpf_verifie
 	if (err)
 		return err;
 
+	if (is_pointer_value(env, insn->src_reg)) {
+		verbose("R%d leaks addr into mem\n", insn->src_reg);
+		return -EACCES;
+	}
+
 	/* check whether atomic_add can read the memory */
 	err = check_mem_access(env, insn->dst_reg, insn->off,
 			       BPF_SIZE(insn->code), BPF_READ, -1);
@@ -1252,6 +1281,7 @@ static int check_call(struct bpf_verifie
 			return -EINVAL;
 		}
 		regs[BPF_REG_0].map_ptr = meta.map_ptr;
+		regs[BPF_REG_0].id = ++env->id_gen;
 	} else {
 		verbose("unknown return type %d of func %d\n",
 			fn->ret_type, func_id);
@@ -1443,6 +1473,65 @@ static int evaluate_reg_alu(struct bpf_v
 	return 0;
 }
 
+static int evaluate_reg_imm_alu_unknown(struct bpf_verifier_env *env,
+					struct bpf_insn *insn)
+{
+	struct bpf_reg_state *regs = env->cur_state.regs;
+	struct bpf_reg_state *dst_reg = &regs[insn->dst_reg];
+	struct bpf_reg_state *src_reg = &regs[insn->src_reg];
+	u8 opcode = BPF_OP(insn->code);
+	s64 imm_log2 = __ilog2_u64((long long)dst_reg->imm);
+
+	/* BPF_X code with src_reg->type UNKNOWN_VALUE here. */
+	if (src_reg->imm > 0 && dst_reg->imm) {
+		switch (opcode) {
+		case BPF_ADD:
+			/* dreg += sreg
+			 * where both have zero upper bits. Adding them
+			 * can only result making one more bit non-zero
+			 * in the larger value.
+			 * Ex. 0xffff (imm=48) + 1 (imm=63) = 0x10000 (imm=47)
+			 *     0xffff (imm=48) + 0xffff = 0x1fffe (imm=47)
+			 */
+			dst_reg->imm = min(src_reg->imm, 63 - imm_log2);
+			dst_reg->imm--;
+			break;
+		case BPF_AND:
+			/* dreg &= sreg
+			 * AND can not extend zero bits only shrink
+			 * Ex.  0x00..00ffffff
+			 *    & 0x0f..ffffffff
+			 *     ----------------
+			 *      0x00..00ffffff
+			 */
+			dst_reg->imm = max(src_reg->imm, 63 - imm_log2);
+			break;
+		case BPF_OR:
+			/* dreg |= sreg
+			 * OR can only extend zero bits
+			 * Ex.  0x00..00ffffff
+			 *    | 0x0f..ffffffff
+			 *     ----------------
+			 *      0x0f..00ffffff
+			 */
+			dst_reg->imm = min(src_reg->imm, 63 - imm_log2);
+			break;
+		case BPF_SUB:
+		case BPF_MUL:
+		case BPF_RSH:
+		case BPF_LSH:
+			/* These may be flushed out later */
+		default:
+			mark_reg_unknown_value(regs, insn->dst_reg);
+		}
+	} else {
+		mark_reg_unknown_value(regs, insn->dst_reg);
+	}
+
+	dst_reg->type = UNKNOWN_VALUE;
+	return 0;
+}
+
 static int evaluate_reg_imm_alu(struct bpf_verifier_env *env,
 				struct bpf_insn *insn)
 {
@@ -1451,6 +1540,9 @@ static int evaluate_reg_imm_alu(struct b
 	struct bpf_reg_state *src_reg = &regs[insn->src_reg];
 	u8 opcode = BPF_OP(insn->code);
 
+	if (BPF_SRC(insn->code) == BPF_X && src_reg->type == UNKNOWN_VALUE)
+		return evaluate_reg_imm_alu_unknown(env, insn);
+
 	/* dst_reg->type == CONST_IMM here, simulate execution of 'add' insn.
 	 * Don't care about overflow or negative values, just add them
 	 */
@@ -1506,10 +1598,24 @@ static void adjust_reg_min_max_vals(stru
 	}
 
 	/* We don't know anything about what was done to this register, mark it
-	 * as unknown.
+	 * as unknown. Also, if both derived bounds came from signed/unsigned
+	 * mixed compares and one side is unbounded, we cannot really do anything
+	 * with them as boundaries cannot be trusted. Thus, arithmetic of two
+	 * regs of such kind will get invalidated bounds on the dst side.
 	 */
-	if (min_val == BPF_REGISTER_MIN_RANGE &&
-	    max_val == BPF_REGISTER_MAX_RANGE) {
+	if ((min_val == BPF_REGISTER_MIN_RANGE &&
+	     max_val == BPF_REGISTER_MAX_RANGE) ||
+	    (BPF_SRC(insn->code) == BPF_X &&
+	     ((min_val != BPF_REGISTER_MIN_RANGE &&
+	       max_val == BPF_REGISTER_MAX_RANGE) ||
+	      (min_val == BPF_REGISTER_MIN_RANGE &&
+	       max_val != BPF_REGISTER_MAX_RANGE) ||
+	      (dst_reg->min_value != BPF_REGISTER_MIN_RANGE &&
+	       dst_reg->max_value == BPF_REGISTER_MAX_RANGE) ||
+	      (dst_reg->min_value == BPF_REGISTER_MIN_RANGE &&
+	       dst_reg->max_value != BPF_REGISTER_MAX_RANGE)) &&
+	     regs[insn->dst_reg].value_from_signed !=
+	     regs[insn->src_reg].value_from_signed)) {
 		reset_reg_range_values(regs, insn->dst_reg);
 		return;
 	}
@@ -1518,10 +1624,12 @@ static void adjust_reg_min_max_vals(stru
 	 * do our normal operations to the register, we need to set the values
 	 * to the min/max since they are undefined.
 	 */
-	if (min_val == BPF_REGISTER_MIN_RANGE)
-		dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
-	if (max_val == BPF_REGISTER_MAX_RANGE)
-		dst_reg->max_value = BPF_REGISTER_MAX_RANGE;
+	if (opcode != BPF_SUB) {
+		if (min_val == BPF_REGISTER_MIN_RANGE)
+			dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
+		if (max_val == BPF_REGISTER_MAX_RANGE)
+			dst_reg->max_value = BPF_REGISTER_MAX_RANGE;
+	}
 
 	switch (opcode) {
 	case BPF_ADD:
@@ -1531,10 +1639,17 @@ static void adjust_reg_min_max_vals(stru
 			dst_reg->max_value += max_val;
 		break;
 	case BPF_SUB:
+		/* If one of our values was at the end of our ranges, then the
+		 * _opposite_ value in the dst_reg goes to the end of our range.
+		 */
+		if (min_val == BPF_REGISTER_MIN_RANGE)
+			dst_reg->max_value = BPF_REGISTER_MAX_RANGE;
+		if (max_val == BPF_REGISTER_MAX_RANGE)
+			dst_reg->min_value = BPF_REGISTER_MIN_RANGE;
 		if (dst_reg->min_value != BPF_REGISTER_MIN_RANGE)
-			dst_reg->min_value -= min_val;
+			dst_reg->min_value -= max_val;
 		if (dst_reg->max_value != BPF_REGISTER_MAX_RANGE)
-			dst_reg->max_value -= max_val;
+			dst_reg->max_value -= min_val;
 		break;
 	case BPF_MUL:
 		if (dst_reg->min_value != BPF_REGISTER_MIN_RANGE)
@@ -1668,8 +1783,7 @@ static int check_alu_op(struct bpf_verif
 						insn->src_reg);
 					return -EACCES;
 				}
-				regs[insn->dst_reg].type = UNKNOWN_VALUE;
-				regs[insn->dst_reg].map_ptr = NULL;
+				mark_reg_unknown_value(regs, insn->dst_reg);
 			}
 		} else {
 			/* case: R = imm
@@ -1742,6 +1856,17 @@ static int check_alu_op(struct bpf_verif
 			return 0;
 		} else if (opcode == BPF_ADD &&
 			   BPF_CLASS(insn->code) == BPF_ALU64 &&
+			   dst_reg->type == PTR_TO_STACK &&
+			   ((BPF_SRC(insn->code) == BPF_X &&
+			     regs[insn->src_reg].type == CONST_IMM) ||
+			    BPF_SRC(insn->code) == BPF_K)) {
+			if (BPF_SRC(insn->code) == BPF_X)
+				dst_reg->imm += regs[insn->src_reg].imm;
+			else
+				dst_reg->imm += insn->imm;
+			return 0;
+		} else if (opcode == BPF_ADD &&
+			   BPF_CLASS(insn->code) == BPF_ALU64 &&
 			   (dst_reg->type == PTR_TO_PACKET ||
 			    (BPF_SRC(insn->code) == BPF_X &&
 			     regs[insn->src_reg].type == PTR_TO_PACKET))) {
@@ -1774,6 +1899,7 @@ static int check_alu_op(struct bpf_verif
 		 * register as unknown.
 		 */
 		if (env->allow_ptr_leaks &&
+		    BPF_CLASS(insn->code) == BPF_ALU64 && opcode == BPF_ADD &&
 		    (dst_reg->type == PTR_TO_MAP_VALUE ||
 		     dst_reg->type == PTR_TO_MAP_VALUE_ADJ))
 			dst_reg->type = PTR_TO_MAP_VALUE_ADJ;
@@ -1822,14 +1948,15 @@ static void find_good_pkt_pointers(struc
 
 	for (i = 0; i < MAX_BPF_REG; i++)
 		if (regs[i].type == PTR_TO_PACKET && regs[i].id == dst_reg->id)
-			regs[i].range = dst_reg->off;
+			/* keep the maximum range already checked */
+			regs[i].range = max(regs[i].range, dst_reg->off);
 
 	for (i = 0; i < MAX_BPF_STACK; i += BPF_REG_SIZE) {
 		if (state->stack_slot_type[i] != STACK_SPILL)
 			continue;
 		reg = &state->spilled_regs[i / BPF_REG_SIZE];
 		if (reg->type == PTR_TO_PACKET && reg->id == dst_reg->id)
-			reg->range = dst_reg->off;
+			reg->range = max(reg->range, dst_reg->off);
 	}
 }
 
@@ -1841,38 +1968,63 @@ static void reg_set_min_max(struct bpf_r
 			    struct bpf_reg_state *false_reg, u64 val,
 			    u8 opcode)
 {
+	bool value_from_signed = true;
+	bool is_range = true;
+
 	switch (opcode) {
 	case BPF_JEQ:
 		/* If this is false then we know nothing Jon Snow, but if it is
 		 * true then we know for sure.
 		 */
 		true_reg->max_value = true_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JNE:
 		/* If this is true we know nothing Jon Snow, but if it is false
 		 * we know the value for sure;
 		 */
 		false_reg->max_value = false_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JGT:
-		/* Unsigned comparison, the minimum value is 0. */
-		false_reg->min_value = 0;
+		value_from_signed = false;
+		/* fallthrough */
 	case BPF_JSGT:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGT) {
+			/* Unsigned comparison, the minimum value is 0. */
+			false_reg->min_value = 0;
+		}
 		/* If this is false then we know the maximum val is val,
 		 * otherwise we know the min val is val+1.
 		 */
 		false_reg->max_value = val;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->min_value = val + 1;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	case BPF_JGE:
-		/* Unsigned comparison, the minimum value is 0. */
-		false_reg->min_value = 0;
+		value_from_signed = false;
+		/* fallthrough */
 	case BPF_JSGE:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGE) {
+			/* Unsigned comparison, the minimum value is 0. */
+			false_reg->min_value = 0;
+		}
 		/* If this is false then we know the maximum value is val - 1,
 		 * otherwise we know the mimimum value is val.
 		 */
 		false_reg->max_value = val - 1;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->min_value = val;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	default:
 		break;
@@ -1880,6 +2032,12 @@ static void reg_set_min_max(struct bpf_r
 
 	check_reg_overflow(false_reg);
 	check_reg_overflow(true_reg);
+	if (is_range) {
+		if (__is_pointer_value(false, false_reg))
+			reset_reg_range_values(false_reg, 0);
+		if (__is_pointer_value(false, true_reg))
+			reset_reg_range_values(true_reg, 0);
+	}
 }
 
 /* Same as above, but for the case that dst_reg is a CONST_IMM reg and src_reg
@@ -1889,39 +2047,64 @@ static void reg_set_min_max_inv(struct b
 				struct bpf_reg_state *false_reg, u64 val,
 				u8 opcode)
 {
+	bool value_from_signed = true;
+	bool is_range = true;
+
 	switch (opcode) {
 	case BPF_JEQ:
 		/* If this is false then we know nothing Jon Snow, but if it is
 		 * true then we know for sure.
 		 */
 		true_reg->max_value = true_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JNE:
 		/* If this is true we know nothing Jon Snow, but if it is false
 		 * we know the value for sure;
 		 */
 		false_reg->max_value = false_reg->min_value = val;
+		is_range = false;
 		break;
 	case BPF_JGT:
-		/* Unsigned comparison, the minimum value is 0. */
-		true_reg->min_value = 0;
+		value_from_signed = false;
+		/* fallthrough */
 	case BPF_JSGT:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGT) {
+			/* Unsigned comparison, the minimum value is 0. */
+			true_reg->min_value = 0;
+		}
 		/*
 		 * If this is false, then the val is <= the register, if it is
 		 * true the register <= to the val.
 		 */
 		false_reg->min_value = val;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->max_value = val - 1;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	case BPF_JGE:
-		/* Unsigned comparison, the minimum value is 0. */
-		true_reg->min_value = 0;
+		value_from_signed = false;
+		/* fallthrough */
 	case BPF_JSGE:
+		if (true_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(true_reg, 0);
+		if (false_reg->value_from_signed != value_from_signed)
+			reset_reg_range_values(false_reg, 0);
+		if (opcode == BPF_JGE) {
+			/* Unsigned comparison, the minimum value is 0. */
+			true_reg->min_value = 0;
+		}
 		/* If this is false then constant < register, if it is true then
 		 * the register < constant.
 		 */
 		false_reg->min_value = val + 1;
+		false_reg->value_from_signed = value_from_signed;
 		true_reg->max_value = val;
+		true_reg->value_from_signed = value_from_signed;
 		break;
 	default:
 		break;
@@ -1929,6 +2112,49 @@ static void reg_set_min_max_inv(struct b
 
 	check_reg_overflow(false_reg);
 	check_reg_overflow(true_reg);
+	if (is_range) {
+		if (__is_pointer_value(false, false_reg))
+			reset_reg_range_values(false_reg, 0);
+		if (__is_pointer_value(false, true_reg))
+			reset_reg_range_values(true_reg, 0);
+	}
+}
+
+static void mark_map_reg(struct bpf_reg_state *regs, u32 regno, u32 id,
+			 enum bpf_reg_type type)
+{
+	struct bpf_reg_state *reg = &regs[regno];
+
+	if (reg->type == PTR_TO_MAP_VALUE_OR_NULL && reg->id == id) {
+		reg->type = type;
+		/* We don't need id from this point onwards anymore, thus we
+		 * should better reset it, so that state pruning has chances
+		 * to take effect.
+		 */
+		reg->id = 0;
+		if (type == UNKNOWN_VALUE)
+			__mark_reg_unknown_value(regs, regno);
+	}
+}
+
+/* The logic is similar to find_good_pkt_pointers(), both could eventually
+ * be folded together at some point.
+ */
+static void mark_map_regs(struct bpf_verifier_state *state, u32 regno,
+			  enum bpf_reg_type type)
+{
+	struct bpf_reg_state *regs = state->regs;
+	u32 id = regs[regno].id;
+	int i;
+
+	for (i = 0; i < MAX_BPF_REG; i++)
+		mark_map_reg(regs, i, id, type);
+
+	for (i = 0; i < MAX_BPF_STACK; i += BPF_REG_SIZE) {
+		if (state->stack_slot_type[i] != STACK_SPILL)
+			continue;
+		mark_map_reg(state->spilled_regs, i / BPF_REG_SIZE, id, type);
+	}
 }
 
 static int check_cond_jmp_op(struct bpf_verifier_env *env,
@@ -2018,18 +2244,13 @@ static int check_cond_jmp_op(struct bpf_
 	if (BPF_SRC(insn->code) == BPF_K &&
 	    insn->imm == 0 && (opcode == BPF_JEQ || opcode == BPF_JNE) &&
 	    dst_reg->type == PTR_TO_MAP_VALUE_OR_NULL) {
-		if (opcode == BPF_JEQ) {
-			/* next fallthrough insn can access memory via
-			 * this register
-			 */
-			regs[insn->dst_reg].type = PTR_TO_MAP_VALUE;
-			/* branch targer cannot access it, since reg == 0 */
-			mark_reg_unknown_value(other_branch->regs,
-					       insn->dst_reg);
-		} else {
-			other_branch->regs[insn->dst_reg].type = PTR_TO_MAP_VALUE;
-			mark_reg_unknown_value(regs, insn->dst_reg);
-		}
+		/* Mark all identical map registers in each branch as either
+		 * safe or unknown depending R == 0 or R != 0 conditional.
+		 */
+		mark_map_regs(this_branch, insn->dst_reg,
+			      opcode == BPF_JEQ ? PTR_TO_MAP_VALUE : UNKNOWN_VALUE);
+		mark_map_regs(other_branch, insn->dst_reg,
+			      opcode == BPF_JEQ ? UNKNOWN_VALUE : PTR_TO_MAP_VALUE);
 	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JGT &&
 		   dst_reg->type == PTR_TO_PACKET &&
 		   regs[insn->src_reg].type == PTR_TO_PACKET_END) {
@@ -2323,6 +2544,7 @@ peek_stack:
 				env->explored_states[t + 1] = STATE_LIST_MARK;
 		} else {
 			/* conditional jump with two edges */
+			env->explored_states[t] = STATE_LIST_MARK;
 			ret = push_insn(t, t + 1, FALLTHROUGH, env);
 			if (ret == 1)
 				goto peek_stack;
@@ -2469,7 +2691,7 @@ static bool states_equal(struct bpf_veri
 		 * we didn't do a variable access into a map then we are a-ok.
 		 */
 		if (!varlen_map_access &&
-		    rold->type == rcur->type && rold->imm == rcur->imm)
+		    memcmp(rold, rcur, offsetofend(struct bpf_reg_state, id)) == 0)
 			continue;
 
 		/* If we didn't map access then again we don't care about the
@@ -2481,6 +2703,12 @@ static bool states_equal(struct bpf_veri
 		     rcur->type != NOT_INIT))
 			continue;
 
+		/* Don't care about the reg->id in this case. */
+		if (rold->type == PTR_TO_MAP_VALUE_OR_NULL &&
+		    rcur->type == PTR_TO_MAP_VALUE_OR_NULL &&
+		    rold->map_ptr == rcur->map_ptr)
+			continue;
+
 		if (rold->type == PTR_TO_PACKET && rcur->type == PTR_TO_PACKET &&
 		    compare_ptrs_to_packet(rold, rcur))
 			continue;
@@ -2615,6 +2843,9 @@ static int do_check(struct bpf_verifier_
 			goto process_bpf_exit;
 		}
 
+		if (need_resched())
+			cond_resched();
+
 		if (log_level && do_print_state) {
 			verbose("\nfrom %d to %d:", prev_insn_idx, insn_idx);
 			print_verifier_state(&env->cur_state);
@@ -2623,7 +2854,7 @@ static int do_check(struct bpf_verifier_
 
 		if (log_level) {
 			verbose("%d: ", insn_idx);
-			print_bpf_insn(insn);
+			print_bpf_insn(env, insn);
 		}
 
 		err = ext_analyzer_insn_hook(env, insn_idx, prev_insn_idx);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/capability.c linux-libre-4.9.52-gnu/kernel/capability.c
--- linux-libre-4.9-gnu/kernel/capability.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/capability.c	2017-09-27 08:40:05.000000000 -0400
@@ -457,6 +457,19 @@ bool file_ns_capable(const struct file *
 EXPORT_SYMBOL(file_ns_capable);
 
 /**
+ * privileged_wrt_inode_uidgid - Do capabilities in the namespace work over the inode?
+ * @ns: The user namespace in question
+ * @inode: The inode in question
+ *
+ * Return true if the inode uid and gid are within the namespace.
+ */
+bool privileged_wrt_inode_uidgid(struct user_namespace *ns, const struct inode *inode)
+{
+	return kuid_has_mapping(ns, inode->i_uid) &&
+		kgid_has_mapping(ns, inode->i_gid);
+}
+
+/**
  * capable_wrt_inode_uidgid - Check nsown_capable and uid and gid mapped
  * @inode: The inode in question
  * @cap: The capability in question
@@ -469,7 +482,26 @@ bool capable_wrt_inode_uidgid(const stru
 {
 	struct user_namespace *ns = current_user_ns();
 
-	return ns_capable(ns, cap) && kuid_has_mapping(ns, inode->i_uid) &&
-		kgid_has_mapping(ns, inode->i_gid);
+	return ns_capable(ns, cap) && privileged_wrt_inode_uidgid(ns, inode);
 }
 EXPORT_SYMBOL(capable_wrt_inode_uidgid);
+
+/**
+ * ptracer_capable - Determine if the ptracer holds CAP_SYS_PTRACE in the namespace
+ * @tsk: The task that may be ptraced
+ * @ns: The user namespace to search for CAP_SYS_PTRACE in
+ *
+ * Return true if the task that is ptracing the current task had CAP_SYS_PTRACE
+ * in the specified user namespace.
+ */
+bool ptracer_capable(struct task_struct *tsk, struct user_namespace *ns)
+{
+	int ret = 0;  /* An absent tracer adds no restrictions */
+	const struct cred *cred;
+	rcu_read_lock();
+	cred = rcu_dereference(tsk->ptracer_cred);
+	if (cred)
+		ret = security_capable_noaudit(cred, ns, CAP_SYS_PTRACE);
+	rcu_read_unlock();
+	return (ret == 0);
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/cgroup.c linux-libre-4.9.52-gnu/kernel/cgroup.c
--- linux-libre-4.9-gnu/kernel/cgroup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/cgroup.c	2017-09-27 08:40:05.000000000 -0400
@@ -2920,11 +2920,12 @@ static ssize_t __cgroup_procs_write(stru
 		tsk = tsk->group_leader;
 
 	/*
-	 * Workqueue threads may acquire PF_NO_SETAFFINITY and become
-	 * trapped in a cpuset, or RT worker may be born in a cgroup
-	 * with no rt_runtime allocated.  Just say no.
+	 * kthreads may acquire PF_NO_SETAFFINITY during initialization.
+	 * If userland migrates such a kthread to a non-root cgroup, it can
+	 * become trapped in a cpuset, or RT kthread may be born in a
+	 * cgroup with no rt_runtime allocated.  Just say no.
 	 */
-	if (tsk == kthreadd_task || (tsk->flags & PF_NO_SETAFFINITY)) {
+	if (tsk->no_cgroup_migration || (tsk->flags & PF_NO_SETAFFINITY)) {
 		ret = -EINVAL;
 		goto out_unlock_rcu;
 	}
@@ -3486,11 +3487,11 @@ static ssize_t cgroup_subtree_control_wr
 	cgrp->subtree_control &= ~disable;
 
 	ret = cgroup_apply_control(cgrp);
-
 	cgroup_finalize_control(cgrp, ret);
+	if (ret)
+		goto out_unlock;
 
 	kernfs_activate(cgrp->kn);
-	ret = 0;
 out_unlock:
 	cgroup_kn_unlock(of->kn);
 	return ret ?: nbytes;
@@ -5219,6 +5220,11 @@ err_free_css:
 	return ERR_PTR(err);
 }
 
+/*
+ * The returned cgroup is fully initialized including its control mask, but
+ * it isn't associated with its kernfs_node and doesn't have the control
+ * mask applied.
+ */
 static struct cgroup *cgroup_create(struct cgroup *parent)
 {
 	struct cgroup_root *root = parent->root;
@@ -5283,11 +5289,6 @@ static struct cgroup *cgroup_create(stru
 
 	cgroup_propagate_control(cgrp);
 
-	/* @cgrp doesn't have dir yet so the following will only create csses */
-	ret = cgroup_apply_control_enable(cgrp);
-	if (ret)
-		goto out_destroy;
-
 	return cgrp;
 
 out_cancel_ref:
@@ -5295,9 +5296,6 @@ out_cancel_ref:
 out_free_cgrp:
 	kfree(cgrp);
 	return ERR_PTR(ret);
-out_destroy:
-	cgroup_destroy_locked(cgrp);
-	return ERR_PTR(ret);
 }
 
 static int cgroup_mkdir(struct kernfs_node *parent_kn, const char *name,
@@ -5409,6 +5407,11 @@ static void kill_css(struct cgroup_subsy
 {
 	lockdep_assert_held(&cgroup_mutex);
 
+	if (css->flags & CSS_DYING)
+		return;
+
+	css->flags |= CSS_DYING;
+
 	/*
 	 * This must happen before css is disassociated with its cgroup.
 	 * See seq_css() for details.
@@ -5715,6 +5718,10 @@ int __init cgroup_init(void)
 
 		if (ss->bind)
 			ss->bind(init_css_set.subsys[ssid]);
+
+		mutex_lock(&cgroup_mutex);
+		css_populate_dir(init_css_set.subsys[ssid]);
+		mutex_unlock(&cgroup_mutex);
 	}
 
 	/* init_css_set.subsys[] has been updated, re-hash */
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/cgroup_pids.c linux-libre-4.9.52-gnu/kernel/cgroup_pids.c
--- linux-libre-4.9-gnu/kernel/cgroup_pids.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/cgroup_pids.c	2017-09-27 08:40:05.000000000 -0400
@@ -229,7 +229,7 @@ static int pids_can_fork(struct task_str
 		/* Only log the first time events_limit is incremented. */
 		if (atomic64_inc_return(&pids->events_limit) == 1) {
 			pr_info("cgroup: fork rejected by pids controller in ");
-			pr_cont_cgroup_path(task_cgroup(current, pids_cgrp_id));
+			pr_cont_cgroup_path(css->cgroup);
 			pr_cont("\n");
 		}
 		cgroup_file_notify(&pids->events_file);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/cpu.c linux-libre-4.9.52-gnu/kernel/cpu.c
--- linux-libre-4.9-gnu/kernel/cpu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/cpu.c	2017-09-27 08:40:05.000000000 -0400
@@ -410,11 +410,26 @@ static int notify_online(unsigned int cp
 	return 0;
 }
 
+static void __cpuhp_kick_ap_work(struct cpuhp_cpu_state *st);
+
 static int bringup_wait_for_ap(unsigned int cpu)
 {
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
 
+	/* Wait for the CPU to reach CPUHP_AP_ONLINE_IDLE */
 	wait_for_completion(&st->done);
+	if (WARN_ON_ONCE((!cpu_online(cpu))))
+		return -ECANCELED;
+
+	/* Unpark the stopper thread and the hotplug thread of the target cpu */
+	stop_machine_unpark(cpu);
+	kthread_unpark(st->thread);
+
+	/* Should we go further up ? */
+	if (st->target > CPUHP_AP_ONLINE_IDLE) {
+		__cpuhp_kick_ap_work(st);
+		wait_for_completion(&st->done);
+	}
 	return st->result;
 }
 
@@ -437,9 +452,7 @@ static int bringup_cpu(unsigned int cpu)
 		cpu_notify(CPU_UP_CANCELED, cpu);
 		return ret;
 	}
-	ret = bringup_wait_for_ap(cpu);
-	BUG_ON(!cpu_online(cpu));
-	return ret;
+	return bringup_wait_for_ap(cpu);
 }
 
 /*
@@ -659,7 +672,6 @@ void __init cpuhp_threads_init(void)
 	kthread_unpark(this_cpu_read(cpuhp_state.thread));
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
 EXPORT_SYMBOL(register_cpu_notifier);
 EXPORT_SYMBOL(__register_cpu_notifier);
 void unregister_cpu_notifier(struct notifier_block *nb)
@@ -676,6 +688,7 @@ void __unregister_cpu_notifier(struct no
 }
 EXPORT_SYMBOL(__unregister_cpu_notifier);
 
+#ifdef CONFIG_HOTPLUG_CPU
 /**
  * clear_tasks_mm_cpumask - Safely clear tasks' mm_cpumask for a CPU
  * @cpu: a CPU id
@@ -974,31 +987,20 @@ void notify_cpu_starting(unsigned int cp
 }
 
 /*
- * Called from the idle task. We need to set active here, so we can kick off
- * the stopper thread and unpark the smpboot threads. If the target state is
- * beyond CPUHP_AP_ONLINE_IDLE we kick cpuhp thread and let it bring up the
- * cpu further.
+ * Called from the idle task. Wake up the controlling task which brings the
+ * stopper and the hotplug thread of the upcoming CPU up and then delegates
+ * the rest of the online bringup to the hotplug thread.
  */
 void cpuhp_online_idle(enum cpuhp_state state)
 {
 	struct cpuhp_cpu_state *st = this_cpu_ptr(&cpuhp_state);
-	unsigned int cpu = smp_processor_id();
 
 	/* Happens for the boot cpu */
 	if (state != CPUHP_AP_ONLINE_IDLE)
 		return;
 
 	st->state = CPUHP_AP_ONLINE_IDLE;
-
-	/* Unpark the stopper thread and the hotplug thread of this cpu */
-	stop_machine_unpark(cpu);
-	kthread_unpark(st->thread);
-
-	/* Should we go further up ? */
-	if (st->target > CPUHP_AP_ONLINE_IDLE)
-		__cpuhp_kick_ap_work(st);
-	else
-		complete(&st->done);
+	complete(&st->done);
 }
 
 /* Requires cpu_add_remove_lock to be held */
@@ -1441,14 +1443,12 @@ static void cpuhp_store_callbacks(enum c
 	/* (Un)Install the callbacks for further cpu hotplug operations */
 	struct cpuhp_step *sp;
 
-	mutex_lock(&cpuhp_state_mutex);
 	sp = cpuhp_get_step(state);
 	sp->startup.single = startup;
 	sp->teardown.single = teardown;
 	sp->name = name;
 	sp->multi_instance = multi_instance;
 	INIT_HLIST_HEAD(&sp->list);
-	mutex_unlock(&cpuhp_state_mutex);
 }
 
 static void *cpuhp_get_teardown_cb(enum cpuhp_state state)
@@ -1518,16 +1518,13 @@ static int cpuhp_reserve_state(enum cpuh
 {
 	enum cpuhp_state i;
 
-	mutex_lock(&cpuhp_state_mutex);
 	for (i = CPUHP_AP_ONLINE_DYN; i <= CPUHP_AP_ONLINE_DYN_END; i++) {
 		if (cpuhp_ap_states[i].name)
 			continue;
 
 		cpuhp_ap_states[i].name = "Reserved";
-		mutex_unlock(&cpuhp_state_mutex);
 		return i;
 	}
-	mutex_unlock(&cpuhp_state_mutex);
 	WARN(1, "No more dynamic states available for CPU hotplug\n");
 	return -ENOSPC;
 }
@@ -1544,6 +1541,7 @@ int __cpuhp_state_add_instance(enum cpuh
 		return -EINVAL;
 
 	get_online_cpus();
+	mutex_lock(&cpuhp_state_mutex);
 
 	if (!invoke || !sp->startup.multi)
 		goto add_node;
@@ -1568,11 +1566,10 @@ int __cpuhp_state_add_instance(enum cpuh
 	}
 add_node:
 	ret = 0;
-	mutex_lock(&cpuhp_state_mutex);
 	hlist_add_head(node, &sp->list);
-	mutex_unlock(&cpuhp_state_mutex);
 
 err:
+	mutex_unlock(&cpuhp_state_mutex);
 	put_online_cpus();
 	return ret;
 }
@@ -1601,6 +1598,7 @@ int __cpuhp_setup_state(enum cpuhp_state
 		return -EINVAL;
 
 	get_online_cpus();
+	mutex_lock(&cpuhp_state_mutex);
 
 	/* currently assignments for the ONLINE state are possible */
 	if (state == CPUHP_AP_ONLINE_DYN) {
@@ -1636,6 +1634,8 @@ int __cpuhp_setup_state(enum cpuhp_state
 		}
 	}
 out:
+	mutex_unlock(&cpuhp_state_mutex);
+
 	put_online_cpus();
 	if (!ret && dyn_state)
 		return state;
@@ -1655,6 +1655,8 @@ int __cpuhp_state_remove_instance(enum c
 		return -EINVAL;
 
 	get_online_cpus();
+	mutex_lock(&cpuhp_state_mutex);
+
 	if (!invoke || !cpuhp_get_teardown_cb(state))
 		goto remove;
 	/*
@@ -1671,7 +1673,6 @@ int __cpuhp_state_remove_instance(enum c
 	}
 
 remove:
-	mutex_lock(&cpuhp_state_mutex);
 	hlist_del(node);
 	mutex_unlock(&cpuhp_state_mutex);
 	put_online_cpus();
@@ -1696,6 +1697,7 @@ void __cpuhp_remove_state(enum cpuhp_sta
 	BUG_ON(cpuhp_cb_check(state));
 
 	get_online_cpus();
+	mutex_lock(&cpuhp_state_mutex);
 
 	if (sp->multi_instance) {
 		WARN(!hlist_empty(&sp->list),
@@ -1721,6 +1723,7 @@ void __cpuhp_remove_state(enum cpuhp_sta
 	}
 remove:
 	cpuhp_store_callbacks(state, NULL, NULL, NULL, false);
+	mutex_unlock(&cpuhp_state_mutex);
 	put_online_cpus();
 }
 EXPORT_SYMBOL(__cpuhp_remove_state);
@@ -1764,13 +1767,13 @@ static ssize_t write_cpuhp_target(struct
 	ret = !sp->name || sp->cant_stop ? -EINVAL : 0;
 	mutex_unlock(&cpuhp_state_mutex);
 	if (ret)
-		return ret;
+		goto out;
 
 	if (st->state < target)
 		ret = do_cpu_up(dev->id, target);
 	else
 		ret = do_cpu_down(dev->id, target);
-
+out:
 	unlock_device_hotplug();
 	return ret ? ret : count;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/cpuset.c linux-libre-4.9.52-gnu/kernel/cpuset.c
--- linux-libre-4.9-gnu/kernel/cpuset.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/cpuset.c	2017-09-27 08:40:05.000000000 -0400
@@ -61,6 +61,7 @@
 #include <linux/cgroup.h>
 #include <linux/wait.h>
 
+DEFINE_STATIC_KEY_FALSE(cpusets_pre_enable_key);
 DEFINE_STATIC_KEY_FALSE(cpusets_enabled_key);
 
 /* See "Frequency meter" comments, below. */
@@ -174,9 +175,9 @@ typedef enum {
 } cpuset_flagbits_t;
 
 /* convenient tests for these bits */
-static inline bool is_cpuset_online(const struct cpuset *cs)
+static inline bool is_cpuset_online(struct cpuset *cs)
 {
-	return test_bit(CS_ONLINE, &cs->flags);
+	return test_bit(CS_ONLINE, &cs->flags) && !css_is_dying(&cs->css);
 }
 
 static inline int is_cpu_exclusive(const struct cpuset *cs)
@@ -1904,6 +1905,7 @@ static struct cftype files[] = {
 	{
 		.name = "memory_pressure",
 		.read_u64 = cpuset_read_u64,
+		.private = FILE_MEMORY_PRESSURE,
 	},
 
 	{
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/debug/debug_core.c linux-libre-4.9.52-gnu/kernel/debug/debug_core.c
--- linux-libre-4.9-gnu/kernel/debug/debug_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/debug/debug_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -598,11 +598,11 @@ return_normal:
 	/*
 	 * Wait for the other CPUs to be notified and be waiting for us:
 	 */
-	time_left = loops_per_jiffy * HZ;
+	time_left = MSEC_PER_SEC;
 	while (kgdb_do_roundup && --time_left &&
 	       (atomic_read(&masters_in_kgdb) + atomic_read(&slaves_in_kgdb)) !=
 		   online_cpus)
-		cpu_relax();
+		udelay(1000);
 	if (!time_left)
 		pr_crit("Timed out waiting for secondary CPUs.\n");
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/events/core.c linux-libre-4.9.52-gnu/kernel/events/core.c
--- linux-libre-4.9-gnu/kernel/events/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/events/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1469,7 +1469,6 @@ ctx_group_list(struct perf_event *event,
 static void
 list_add_event(struct perf_event *event, struct perf_event_context *ctx)
 {
-
 	lockdep_assert_held(&ctx->lock);
 
 	WARN_ON_ONCE(event->attach_state & PERF_ATTACH_CONTEXT);
@@ -1624,6 +1623,8 @@ static void perf_group_attach(struct per
 {
 	struct perf_event *group_leader = event->group_leader, *pos;
 
+	lockdep_assert_held(&event->ctx->lock);
+
 	/*
 	 * We can have double attach due to group movement in perf_event_open.
 	 */
@@ -1697,6 +1698,8 @@ static void perf_group_detach(struct per
 	struct perf_event *sibling, *tmp;
 	struct list_head *list = NULL;
 
+	lockdep_assert_held(&event->ctx->lock);
+
 	/*
 	 * We can have double detach due to exit/hot-unplug + close.
 	 */
@@ -1895,9 +1898,29 @@ __perf_remove_from_context(struct perf_e
  */
 static void perf_remove_from_context(struct perf_event *event, unsigned long flags)
 {
-	lockdep_assert_held(&event->ctx->mutex);
+	struct perf_event_context *ctx = event->ctx;
+
+	lockdep_assert_held(&ctx->mutex);
 
 	event_function_call(event, __perf_remove_from_context, (void *)flags);
+
+	/*
+	 * The above event_function_call() can NO-OP when it hits
+	 * TASK_TOMBSTONE. In that case we must already have been detached
+	 * from the context (by perf_event_exit_event()) but the grouping
+	 * might still be in-tact.
+	 */
+	WARN_ON_ONCE(event->attach_state & PERF_ATTACH_CONTEXT);
+	if ((flags & DETACH_GROUP) &&
+	    (event->attach_state & PERF_ATTACH_GROUP)) {
+		/*
+		 * Since in that case we cannot possibly be scheduled, simply
+		 * detach now.
+		 */
+		raw_spin_lock_irq(&ctx->lock);
+		perf_group_detach(event);
+		raw_spin_unlock_irq(&ctx->lock);
+	}
 }
 
 /*
@@ -2249,7 +2272,7 @@ static int  __perf_install_in_context(vo
 	struct perf_event_context *ctx = event->ctx;
 	struct perf_cpu_context *cpuctx = __get_cpu_context(ctx);
 	struct perf_event_context *task_ctx = cpuctx->task_ctx;
-	bool activate = true;
+	bool reprogram = true;
 	int ret = 0;
 
 	raw_spin_lock(&cpuctx->ctx.lock);
@@ -2257,27 +2280,26 @@ static int  __perf_install_in_context(vo
 		raw_spin_lock(&ctx->lock);
 		task_ctx = ctx;
 
-		/* If we're on the wrong CPU, try again */
-		if (task_cpu(ctx->task) != smp_processor_id()) {
-			ret = -ESRCH;
-			goto unlock;
-		}
+		reprogram = (ctx->task == current);
 
 		/*
-		 * If we're on the right CPU, see if the task we target is
-		 * current, if not we don't have to activate the ctx, a future
-		 * context switch will do that for us.
+		 * If the task is running, it must be running on this CPU,
+		 * otherwise we cannot reprogram things.
+		 *
+		 * If its not running, we don't care, ctx->lock will
+		 * serialize against it becoming runnable.
 		 */
-		if (ctx->task != current)
-			activate = false;
-		else
-			WARN_ON_ONCE(cpuctx->task_ctx && cpuctx->task_ctx != ctx);
+		if (task_curr(ctx->task) && !reprogram) {
+			ret = -ESRCH;
+			goto unlock;
+		}
 
+		WARN_ON_ONCE(reprogram && cpuctx->task_ctx && cpuctx->task_ctx != ctx);
 	} else if (task_ctx) {
 		raw_spin_lock(&task_ctx->lock);
 	}
 
-	if (activate) {
+	if (reprogram) {
 		ctx_sched_out(ctx, cpuctx, EVENT_TIME);
 		add_event_to_ctx(event, ctx);
 		ctx_resched(cpuctx, task_ctx);
@@ -2328,13 +2350,36 @@ perf_install_in_context(struct perf_even
 	/*
 	 * Installing events is tricky because we cannot rely on ctx->is_active
 	 * to be set in case this is the nr_events 0 -> 1 transition.
+	 *
+	 * Instead we use task_curr(), which tells us if the task is running.
+	 * However, since we use task_curr() outside of rq::lock, we can race
+	 * against the actual state. This means the result can be wrong.
+	 *
+	 * If we get a false positive, we retry, this is harmless.
+	 *
+	 * If we get a false negative, things are complicated. If we are after
+	 * perf_event_context_sched_in() ctx::lock will serialize us, and the
+	 * value must be correct. If we're before, it doesn't matter since
+	 * perf_event_context_sched_in() will program the counter.
+	 *
+	 * However, this hinges on the remote context switch having observed
+	 * our task->perf_event_ctxp[] store, such that it will in fact take
+	 * ctx::lock in perf_event_context_sched_in().
+	 *
+	 * We do this by task_function_call(), if the IPI fails to hit the task
+	 * we know any future context switch of task must see the
+	 * perf_event_ctpx[] store.
 	 */
-again:
+
 	/*
-	 * Cannot use task_function_call() because we need to run on the task's
-	 * CPU regardless of whether its current or not.
+	 * This smp_mb() orders the task->perf_event_ctxp[] store with the
+	 * task_cpu() load, such that if the IPI then does not find the task
+	 * running, a future context switch of that task must observe the
+	 * store.
 	 */
-	if (!cpu_function_call(task_cpu(task), __perf_install_in_context, event))
+	smp_mb();
+again:
+	if (!task_function_call(task, __perf_install_in_context, event))
 		return;
 
 	raw_spin_lock_irq(&ctx->lock);
@@ -2348,12 +2393,16 @@ again:
 		raw_spin_unlock_irq(&ctx->lock);
 		return;
 	}
-	raw_spin_unlock_irq(&ctx->lock);
 	/*
-	 * Since !ctx->is_active doesn't mean anything, we must IPI
-	 * unconditionally.
+	 * If the task is not running, ctx->lock will avoid it becoming so,
+	 * thus we can safely install the event.
 	 */
-	goto again;
+	if (task_curr(task)) {
+		raw_spin_unlock_irq(&ctx->lock);
+		goto again;
+	}
+	add_event_to_ctx(event, ctx);
+	raw_spin_unlock_irq(&ctx->lock);
 }
 
 /*
@@ -3438,14 +3487,15 @@ struct perf_read_data {
 	int ret;
 };
 
-static int find_cpu_to_read(struct perf_event *event, int local_cpu)
+static int __perf_event_read_cpu(struct perf_event *event, int event_cpu)
 {
-	int event_cpu = event->oncpu;
 	u16 local_pkg, event_pkg;
 
 	if (event->group_caps & PERF_EV_CAP_READ_ACTIVE_PKG) {
-		event_pkg =  topology_physical_package_id(event_cpu);
-		local_pkg =  topology_physical_package_id(local_cpu);
+		int local_cpu = smp_processor_id();
+
+		event_pkg = topology_physical_package_id(event_cpu);
+		local_pkg = topology_physical_package_id(local_cpu);
 
 		if (event_pkg == local_pkg)
 			return local_cpu;
@@ -3575,7 +3625,7 @@ u64 perf_event_read_local(struct perf_ev
 
 static int perf_event_read(struct perf_event *event, bool group)
 {
-	int ret = 0, cpu_to_read, local_cpu;
+	int event_cpu, ret = 0;
 
 	/*
 	 * If event is enabled and currently active on a CPU, update the
@@ -3588,21 +3638,25 @@ static int perf_event_read(struct perf_e
 			.ret = 0,
 		};
 
-		local_cpu = get_cpu();
-		cpu_to_read = find_cpu_to_read(event, local_cpu);
-		put_cpu();
+		event_cpu = READ_ONCE(event->oncpu);
+		if ((unsigned)event_cpu >= nr_cpu_ids)
+			return 0;
+
+		preempt_disable();
+		event_cpu = __perf_event_read_cpu(event, event_cpu);
 
 		/*
 		 * Purposely ignore the smp_call_function_single() return
 		 * value.
 		 *
-		 * If event->oncpu isn't a valid CPU it means the event got
+		 * If event_cpu isn't a valid CPU it means the event got
 		 * scheduled out and that will have updated the event count.
 		 *
 		 * Therefore, either way, we'll have an up-to-date event count
 		 * after this.
 		 */
-		(void)smp_call_function_single(cpu_to_read, __perf_event_read, &data, 1);
+		(void)smp_call_function_single(event_cpu, __perf_event_read, &data, 1);
+		preempt_enable();
 		ret = data.ret;
 	} else if (event->state == PERF_EVENT_STATE_INACTIVE) {
 		struct perf_event_context *ctx = event->ctx;
@@ -6583,6 +6637,27 @@ static void perf_event_mmap_event(struct
 	char *buf = NULL;
 	char *name;
 
+	if (vma->vm_flags & VM_READ)
+		prot |= PROT_READ;
+	if (vma->vm_flags & VM_WRITE)
+		prot |= PROT_WRITE;
+	if (vma->vm_flags & VM_EXEC)
+		prot |= PROT_EXEC;
+
+	if (vma->vm_flags & VM_MAYSHARE)
+		flags = MAP_SHARED;
+	else
+		flags = MAP_PRIVATE;
+
+	if (vma->vm_flags & VM_DENYWRITE)
+		flags |= MAP_DENYWRITE;
+	if (vma->vm_flags & VM_MAYEXEC)
+		flags |= MAP_EXECUTABLE;
+	if (vma->vm_flags & VM_LOCKED)
+		flags |= MAP_LOCKED;
+	if (vma->vm_flags & VM_HUGETLB)
+		flags |= MAP_HUGETLB;
+
 	if (file) {
 		struct inode *inode;
 		dev_t dev;
@@ -6609,27 +6684,6 @@ static void perf_event_mmap_event(struct
 		maj = MAJOR(dev);
 		min = MINOR(dev);
 
-		if (vma->vm_flags & VM_READ)
-			prot |= PROT_READ;
-		if (vma->vm_flags & VM_WRITE)
-			prot |= PROT_WRITE;
-		if (vma->vm_flags & VM_EXEC)
-			prot |= PROT_EXEC;
-
-		if (vma->vm_flags & VM_MAYSHARE)
-			flags = MAP_SHARED;
-		else
-			flags = MAP_PRIVATE;
-
-		if (vma->vm_flags & VM_DENYWRITE)
-			flags |= MAP_DENYWRITE;
-		if (vma->vm_flags & VM_MAYEXEC)
-			flags |= MAP_EXECUTABLE;
-		if (vma->vm_flags & VM_LOCKED)
-			flags |= MAP_LOCKED;
-		if (vma->vm_flags & VM_HUGETLB)
-			flags |= MAP_HUGETLB;
-
 		goto got_name;
 	} else {
 		if (vma->vm_ops && vma->vm_ops->name) {
@@ -9503,6 +9557,37 @@ static int perf_event_set_clock(struct p
 	return 0;
 }
 
+/*
+ * Variation on perf_event_ctx_lock_nested(), except we take two context
+ * mutexes.
+ */
+static struct perf_event_context *
+__perf_event_ctx_lock_double(struct perf_event *group_leader,
+			     struct perf_event_context *ctx)
+{
+	struct perf_event_context *gctx;
+
+again:
+	rcu_read_lock();
+	gctx = READ_ONCE(group_leader->ctx);
+	if (!atomic_inc_not_zero(&gctx->refcount)) {
+		rcu_read_unlock();
+		goto again;
+	}
+	rcu_read_unlock();
+
+	mutex_lock_double(&gctx->mutex, &ctx->mutex);
+
+	if (group_leader->ctx != gctx) {
+		mutex_unlock(&ctx->mutex);
+		mutex_unlock(&gctx->mutex);
+		put_ctx(gctx);
+		goto again;
+	}
+
+	return gctx;
+}
+
 /**
  * sys_perf_event_open - open a performance event, associate it to a task/cpu
  *
@@ -9701,28 +9786,27 @@ SYSCALL_DEFINE5(perf_event_open,
 			goto err_context;
 
 		/*
-		 * Do not allow to attach to a group in a different
-		 * task or CPU context:
+		 * Make sure we're both events for the same CPU;
+		 * grouping events for different CPUs is broken; since
+		 * you can never concurrently schedule them anyhow.
 		 */
-		if (move_group) {
-			/*
-			 * Make sure we're both on the same task, or both
-			 * per-cpu events.
-			 */
-			if (group_leader->ctx->task != ctx->task)
-				goto err_context;
+		if (group_leader->cpu != event->cpu)
+			goto err_context;
 
-			/*
-			 * Make sure we're both events for the same CPU;
-			 * grouping events for different CPUs is broken; since
-			 * you can never concurrently schedule them anyhow.
-			 */
-			if (group_leader->cpu != event->cpu)
-				goto err_context;
-		} else {
-			if (group_leader->ctx != ctx)
-				goto err_context;
-		}
+		/*
+		 * Make sure we're both on the same task, or both
+		 * per-CPU events.
+		 */
+		if (group_leader->ctx->task != ctx->task)
+			goto err_context;
+
+		/*
+		 * Do not allow to attach to a group in a different task
+		 * or CPU context. If we're moving SW events, we'll fix
+		 * this up later, so allow that.
+		 */
+		if (!move_group && group_leader->ctx != ctx)
+			goto err_context;
 
 		/*
 		 * Only a group leader can be exclusive or pinned
@@ -9746,12 +9830,31 @@ SYSCALL_DEFINE5(perf_event_open,
 	}
 
 	if (move_group) {
-		gctx = group_leader->ctx;
-		mutex_lock_double(&gctx->mutex, &ctx->mutex);
+		gctx = __perf_event_ctx_lock_double(group_leader, ctx);
+
 		if (gctx->task == TASK_TOMBSTONE) {
 			err = -ESRCH;
 			goto err_locked;
 		}
+
+		/*
+		 * Check if we raced against another sys_perf_event_open() call
+		 * moving the software group underneath us.
+		 */
+		if (!(group_leader->group_caps & PERF_EV_CAP_SOFTWARE)) {
+			/*
+			 * If someone moved the group out from under us, check
+			 * if this new event wound up on the same ctx, if so
+			 * its the regular !move_group case, otherwise fail.
+			 */
+			if (gctx != ctx) {
+				err = -EINVAL;
+				goto err_locked;
+			} else {
+				perf_event_ctx_unlock(group_leader, gctx);
+				move_group = 0;
+			}
+		}
 	} else {
 		mutex_lock(&ctx->mutex);
 	}
@@ -9853,7 +9956,7 @@ SYSCALL_DEFINE5(perf_event_open,
 	perf_unpin_context(ctx);
 
 	if (move_group)
-		mutex_unlock(&gctx->mutex);
+		perf_event_ctx_unlock(group_leader, gctx);
 	mutex_unlock(&ctx->mutex);
 
 	if (task) {
@@ -9879,7 +9982,7 @@ SYSCALL_DEFINE5(perf_event_open,
 
 err_locked:
 	if (move_group)
-		mutex_unlock(&gctx->mutex);
+		perf_event_ctx_unlock(group_leader, gctx);
 	mutex_unlock(&ctx->mutex);
 /* err_file: */
 	fput(event_file);
@@ -10255,6 +10358,17 @@ void perf_event_free_task(struct task_st
 			continue;
 
 		mutex_lock(&ctx->mutex);
+		raw_spin_lock_irq(&ctx->lock);
+		/*
+		 * Destroy the task <-> ctx relation and mark the context dead.
+		 *
+		 * This is important because even though the task hasn't been
+		 * exposed yet the context has been (through child_list).
+		 */
+		RCU_INIT_POINTER(task->perf_event_ctxp[ctxn], NULL);
+		WRITE_ONCE(ctx->task, TASK_TOMBSTONE);
+		put_task_struct(task); /* cannot be last */
+		raw_spin_unlock_irq(&ctx->lock);
 again:
 		list_for_each_entry_safe(event, tmp, &ctx->pinned_groups,
 				group_entry)
@@ -10508,7 +10622,7 @@ static int perf_event_init_context(struc
 		ret = inherit_task_group(event, parent, parent_ctx,
 					 child, ctxn, &inherited_all);
 		if (ret)
-			break;
+			goto out_unlock;
 	}
 
 	/*
@@ -10524,7 +10638,7 @@ static int perf_event_init_context(struc
 		ret = inherit_task_group(event, parent, parent_ctx,
 					 child, ctxn, &inherited_all);
 		if (ret)
-			break;
+			goto out_unlock;
 	}
 
 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);
@@ -10552,6 +10666,7 @@ static int perf_event_init_context(struc
 	}
 
 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);
+out_unlock:
 	mutex_unlock(&parent_ctx->mutex);
 
 	perf_unpin_context(parent_ctx);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/events/uprobes.c linux-libre-4.9.52-gnu/kernel/events/uprobes.c
--- linux-libre-4.9-gnu/kernel/events/uprobes.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/events/uprobes.c	2017-09-27 08:40:05.000000000 -0400
@@ -1254,8 +1254,6 @@ void uprobe_end_dup_mmap(void)
 
 void uprobe_dup_mmap(struct mm_struct *oldmm, struct mm_struct *newmm)
 {
-	newmm->uprobes_state.xol_area = NULL;
-
 	if (test_bit(MMF_HAS_UPROBES, &oldmm->flags)) {
 		set_bit(MMF_HAS_UPROBES, &newmm->flags);
 		/* unconditionally, dup_mmap() skips VM_DONTCOPY vmas */
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/extable.c linux-libre-4.9.52-gnu/kernel/extable.c
--- linux-libre-4.9-gnu/kernel/extable.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/extable.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,7 +66,7 @@ static inline int init_kernel_text(unsig
 	return 0;
 }
 
-int core_kernel_text(unsigned long addr)
+int notrace core_kernel_text(unsigned long addr)
 {
 	if (addr >= (unsigned long)_stext &&
 	    addr < (unsigned long)_etext)
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/fork.c linux-libre-4.9.52-gnu/kernel/fork.c
--- linux-libre-4.9-gnu/kernel/fork.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/fork.c	2017-09-27 08:40:05.000000000 -0400
@@ -521,7 +521,7 @@ static struct task_struct *dup_task_stru
 	set_task_stack_end_magic(tsk);
 
 #ifdef CONFIG_CC_STACKPROTECTOR
-	tsk->stack_canary = get_random_int();
+	tsk->stack_canary = get_random_long();
 #endif
 
 	/*
@@ -745,7 +745,15 @@ static void mm_init_owner(struct mm_stru
 #endif
 }
 
-static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
+static void mm_init_uprobes_state(struct mm_struct *mm)
+{
+#ifdef CONFIG_UPROBES
+	mm->uprobes_state.xol_area = NULL;
+#endif
+}
+
+static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
+	struct user_namespace *user_ns)
 {
 	mm->mmap = NULL;
 	mm->mm_rb = RB_ROOT;
@@ -765,11 +773,13 @@ static struct mm_struct *mm_init(struct
 	mm_init_cpumask(mm);
 	mm_init_aio(mm);
 	mm_init_owner(mm, p);
+	RCU_INIT_POINTER(mm->exe_file, NULL);
 	mmu_notifier_mm_init(mm);
 	clear_tlb_flush_pending(mm);
 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 	mm->pmd_huge_pte = NULL;
 #endif
+	mm_init_uprobes_state(mm);
 
 	if (current->mm) {
 		mm->flags = current->mm->flags & MMF_INIT_MASK;
@@ -785,6 +795,7 @@ static struct mm_struct *mm_init(struct
 	if (init_new_context(p, mm))
 		goto fail_nocontext;
 
+	mm->user_ns = get_user_ns(user_ns);
 	return mm;
 
 fail_nocontext:
@@ -830,7 +841,7 @@ struct mm_struct *mm_alloc(void)
 		return NULL;
 
 	memset(mm, 0, sizeof(*mm));
-	return mm_init(mm, current);
+	return mm_init(mm, current, current_user_ns());
 }
 
 /*
@@ -845,6 +856,7 @@ void __mmdrop(struct mm_struct *mm)
 	destroy_context(mm);
 	mmu_notifier_mm_destroy(mm);
 	check_mm(mm);
+	put_user_ns(mm->user_ns);
 	free_mm(mm);
 }
 EXPORT_SYMBOL_GPL(__mmdrop);
@@ -1126,7 +1138,7 @@ static struct mm_struct *dup_mm(struct t
 
 	memcpy(mm, oldmm, sizeof(*mm));
 
-	if (!mm_init(mm, tsk))
+	if (!mm_init(mm, tsk, mm->user_ns))
 		goto fail_nomem;
 
 	err = dup_mmap(mm, oldmm);
@@ -1770,11 +1782,13 @@ static __latent_entropy struct task_stru
 	*/
 	recalc_sigpending();
 	if (signal_pending(current)) {
-		spin_unlock(&current->sighand->siglock);
-		write_unlock_irq(&tasklist_lock);
 		retval = -ERESTARTNOINTR;
 		goto bad_fork_cancel_cgroup;
 	}
+	if (unlikely(!(ns_of_pid(pid)->nr_hashed & PIDNS_HASH_ADDING))) {
+		retval = -ENOMEM;
+		goto bad_fork_cancel_cgroup;
+	}
 
 	if (likely(p->pid)) {
 		ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
@@ -1825,6 +1839,8 @@ static __latent_entropy struct task_stru
 	return p;
 
 bad_fork_cancel_cgroup:
+	spin_unlock(&current->sighand->siglock);
+	write_unlock_irq(&tasklist_lock);
 	cgroup_cancel_fork(p);
 bad_fork_free_pid:
 	threadgroup_change_end(current);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/futex.c linux-libre-4.9.52-gnu/kernel/futex.c
--- linux-libre-4.9-gnu/kernel/futex.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/futex.c	2017-09-27 08:40:05.000000000 -0400
@@ -668,13 +668,14 @@ again:
 		 * this reference was taken by ihold under the page lock
 		 * pinning the inode in place so i_lock was unnecessary. The
 		 * only way for this check to fail is if the inode was
-		 * truncated in parallel so warn for now if this happens.
+		 * truncated in parallel which is almost certainly an
+		 * application bug. In such a case, just retry.
 		 *
 		 * We are not calling into get_futex_key_refs() in file-backed
 		 * cases, therefore a successful atomic_inc return below will
 		 * guarantee that get_futex_key() will still imply smp_mb(); (B).
 		 */
-		if (WARN_ON_ONCE(!atomic_inc_not_zero(&inode->i_count))) {
+		if (!atomic_inc_not_zero(&inode->i_count)) {
 			rcu_read_unlock();
 			put_page(page);
 
@@ -2813,7 +2814,6 @@ static int futex_wait_requeue_pi(u32 __u
 {
 	struct hrtimer_sleeper timeout, *to = NULL;
 	struct rt_mutex_waiter rt_waiter;
-	struct rt_mutex *pi_mutex = NULL;
 	struct futex_hash_bucket *hb;
 	union futex_key key2 = FUTEX_KEY_INIT;
 	struct futex_q q = futex_q_init;
@@ -2897,6 +2897,8 @@ static int futex_wait_requeue_pi(u32 __u
 		if (q.pi_state && (q.pi_state->owner != current)) {
 			spin_lock(q.lock_ptr);
 			ret = fixup_pi_state_owner(uaddr2, &q, current);
+			if (ret && rt_mutex_owner(&q.pi_state->pi_mutex) == current)
+				rt_mutex_unlock(&q.pi_state->pi_mutex);
 			/*
 			 * Drop the reference to the pi state which
 			 * the requeue_pi() code acquired for us.
@@ -2905,6 +2907,8 @@ static int futex_wait_requeue_pi(u32 __u
 			spin_unlock(q.lock_ptr);
 		}
 	} else {
+		struct rt_mutex *pi_mutex;
+
 		/*
 		 * We have been woken up by futex_unlock_pi(), a timeout, or a
 		 * signal.  futex_unlock_pi() will not destroy the lock_ptr nor
@@ -2928,18 +2932,19 @@ static int futex_wait_requeue_pi(u32 __u
 		if (res)
 			ret = (res < 0) ? res : 0;
 
+		/*
+		 * If fixup_pi_state_owner() faulted and was unable to handle
+		 * the fault, unlock the rt_mutex and return the fault to
+		 * userspace.
+		 */
+		if (ret && rt_mutex_owner(pi_mutex) == current)
+			rt_mutex_unlock(pi_mutex);
+
 		/* Unqueue and drop the lock. */
 		unqueue_me_pi(&q);
 	}
 
-	/*
-	 * If fixup_pi_state_owner() faulted and was unable to handle the
-	 * fault, unlock the rt_mutex and return the fault to userspace.
-	 */
-	if (ret == -EFAULT) {
-		if (pi_mutex && rt_mutex_owner(pi_mutex) == current)
-			rt_mutex_unlock(pi_mutex);
-	} else if (ret == -EINTR) {
+	if (ret == -EINTR) {
 		/*
 		 * We've already been requeued, but cannot restart by calling
 		 * futex_lock_pi() directly. We could restart this syscall, but
@@ -3323,4 +3328,4 @@ static int __init futex_init(void)
 
 	return 0;
 }
-__initcall(futex_init);
+core_initcall(futex_init);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/gcov/base.c linux-libre-4.9.52-gnu/kernel/gcov/base.c
--- linux-libre-4.9-gnu/kernel/gcov/base.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/gcov/base.c	2017-09-27 08:40:05.000000000 -0400
@@ -98,6 +98,12 @@ void __gcov_merge_icall_topn(gcov_type *
 }
 EXPORT_SYMBOL(__gcov_merge_icall_topn);
 
+void __gcov_exit(void)
+{
+	/* Unused. */
+}
+EXPORT_SYMBOL(__gcov_exit);
+
 /**
  * gcov_enable_events - enable event reporting through gcov_event()
  *
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/gcov/gcc_4_7.c linux-libre-4.9.52-gnu/kernel/gcov/gcc_4_7.c
--- linux-libre-4.9-gnu/kernel/gcov/gcc_4_7.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/gcov/gcc_4_7.c	2017-09-27 08:40:05.000000000 -0400
@@ -18,7 +18,9 @@
 #include <linux/vmalloc.h>
 #include "gcov.h"
 
-#if (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
+#if (__GNUC__ >= 7)
+#define GCOV_COUNTERS			9
+#elif (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
 #define GCOV_COUNTERS			10
 #elif __GNUC__ == 4 && __GNUC_MINOR__ >= 9
 #define GCOV_COUNTERS			9
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/irq/affinity.c linux-libre-4.9.52-gnu/kernel/irq/affinity.c
--- linux-libre-4.9-gnu/kernel/irq/affinity.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/irq/affinity.c	2017-09-27 08:40:05.000000000 -0400
@@ -37,10 +37,10 @@ static void irq_spread_init_one(struct c
 
 static int get_nodes_in_cpumask(const struct cpumask *mask, nodemask_t *nodemsk)
 {
-	int n, nodes;
+	int n, nodes = 0;
 
 	/* Calculate the number of nodes in the supplied affinity mask */
-	for (n = 0, nodes = 0; n < num_online_nodes(); n++) {
+	for_each_online_node(n) {
 		if (cpumask_intersects(mask, cpumask_of_node(n))) {
 			node_set(n, *nodemsk);
 			nodes++;
@@ -81,7 +81,7 @@ struct cpumask *irq_create_affinity_mask
 	nodes = get_nodes_in_cpumask(affinity, &nodemsk);
 
 	/*
-	 * If the number of nodes in the mask is less than or equal the
+	 * If the number of nodes in the mask is greater than or equal the
 	 * number of vectors we just spread the vectors across the nodes.
 	 */
 	if (nvec <= nodes) {
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/irq/chip.c linux-libre-4.9.52-gnu/kernel/irq/chip.c
--- linux-libre-4.9-gnu/kernel/irq/chip.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/irq/chip.c	2017-09-27 08:40:05.000000000 -0400
@@ -877,8 +877,8 @@ irq_set_chained_handler_and_data(unsigne
 	if (!desc)
 		return;
 
-	__irq_do_set_handler(desc, handle, 1, NULL);
 	desc->irq_common_data.handler_data = data;
+	__irq_do_set_handler(desc, handle, 1, NULL);
 
 	irq_put_desc_busunlock(desc, flags);
 }
@@ -895,13 +895,15 @@ EXPORT_SYMBOL_GPL(irq_set_chip_and_handl
 
 void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
 {
-	unsigned long flags;
+	unsigned long flags, trigger, tmp;
 	struct irq_desc *desc = irq_get_desc_lock(irq, &flags, 0);
 
 	if (!desc)
 		return;
 	irq_settings_clr_and_set(desc, clr, set);
 
+	trigger = irqd_get_trigger_type(&desc->irq_data);
+
 	irqd_clear(&desc->irq_data, IRQD_NO_BALANCING | IRQD_PER_CPU |
 		   IRQD_TRIGGER_MASK | IRQD_LEVEL | IRQD_MOVE_PCNTXT);
 	if (irq_settings_has_no_balance_set(desc))
@@ -913,7 +915,11 @@ void irq_modify_status(unsigned int irq,
 	if (irq_settings_is_level(desc))
 		irqd_set(&desc->irq_data, IRQD_LEVEL);
 
-	irqd_set(&desc->irq_data, irq_settings_get_trigger_mask(desc));
+	tmp = irq_settings_get_trigger_mask(desc);
+	if (tmp != IRQ_TYPE_NONE)
+		trigger = tmp;
+
+	irqd_set(&desc->irq_data, trigger);
 
 	irq_put_desc_unlock(desc, flags);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/irq/ipi.c linux-libre-4.9.52-gnu/kernel/irq/ipi.c
--- linux-libre-4.9-gnu/kernel/irq/ipi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/irq/ipi.c	2017-09-27 08:40:05.000000000 -0400
@@ -165,7 +165,7 @@ irq_hw_number_t ipi_get_hwirq(unsigned i
 	struct irq_data *data = irq_get_irq_data(irq);
 	struct cpumask *ipimask = data ? irq_data_get_affinity_mask(data) : NULL;
 
-	if (!data || !ipimask || cpu > nr_cpu_ids)
+	if (!data || !ipimask || cpu >= nr_cpu_ids)
 		return INVALID_HWIRQ;
 
 	if (!cpumask_test_cpu(cpu, ipimask))
@@ -195,7 +195,7 @@ static int ipi_send_verify(struct irq_ch
 	if (!chip->ipi_send_single && !chip->ipi_send_mask)
 		return -EINVAL;
 
-	if (cpu > nr_cpu_ids)
+	if (cpu >= nr_cpu_ids)
 		return -EINVAL;
 
 	if (dest) {
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/irq/irqdomain.c linux-libre-4.9.52-gnu/kernel/irq/irqdomain.c
--- linux-libre-4.9-gnu/kernel/irq/irqdomain.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/irq/irqdomain.c	2017-09-27 08:40:05.000000000 -0400
@@ -1346,6 +1346,30 @@ void irq_domain_free_irqs_parent(struct
 }
 EXPORT_SYMBOL_GPL(irq_domain_free_irqs_parent);
 
+static void __irq_domain_activate_irq(struct irq_data *irq_data)
+{
+	if (irq_data && irq_data->domain) {
+		struct irq_domain *domain = irq_data->domain;
+
+		if (irq_data->parent_data)
+			__irq_domain_activate_irq(irq_data->parent_data);
+		if (domain->ops->activate)
+			domain->ops->activate(domain, irq_data);
+	}
+}
+
+static void __irq_domain_deactivate_irq(struct irq_data *irq_data)
+{
+	if (irq_data && irq_data->domain) {
+		struct irq_domain *domain = irq_data->domain;
+
+		if (domain->ops->deactivate)
+			domain->ops->deactivate(domain, irq_data);
+		if (irq_data->parent_data)
+			__irq_domain_deactivate_irq(irq_data->parent_data);
+	}
+}
+
 /**
  * irq_domain_activate_irq - Call domain_ops->activate recursively to activate
  *			     interrupt
@@ -1356,13 +1380,9 @@ EXPORT_SYMBOL_GPL(irq_domain_free_irqs_p
  */
 void irq_domain_activate_irq(struct irq_data *irq_data)
 {
-	if (irq_data && irq_data->domain) {
-		struct irq_domain *domain = irq_data->domain;
-
-		if (irq_data->parent_data)
-			irq_domain_activate_irq(irq_data->parent_data);
-		if (domain->ops->activate)
-			domain->ops->activate(domain, irq_data);
+	if (!irqd_is_activated(irq_data)) {
+		__irq_domain_activate_irq(irq_data);
+		irqd_set_activated(irq_data);
 	}
 }
 
@@ -1376,13 +1396,9 @@ void irq_domain_activate_irq(struct irq_
  */
 void irq_domain_deactivate_irq(struct irq_data *irq_data)
 {
-	if (irq_data && irq_data->domain) {
-		struct irq_domain *domain = irq_data->domain;
-
-		if (domain->ops->deactivate)
-			domain->ops->deactivate(domain, irq_data);
-		if (irq_data->parent_data)
-			irq_domain_deactivate_irq(irq_data->parent_data);
+	if (irqd_is_activated(irq_data)) {
+		__irq_domain_deactivate_irq(irq_data);
+		irqd_clr_activated(irq_data);
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/irq/manage.c linux-libre-4.9.52-gnu/kernel/irq/manage.c
--- linux-libre-4.9-gnu/kernel/irq/manage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/irq/manage.c	2017-09-27 08:40:05.000000000 -0400
@@ -1308,8 +1308,10 @@ __setup_irq(unsigned int irq, struct irq
 			ret = __irq_set_trigger(desc,
 						new->flags & IRQF_TRIGGER_MASK);
 
-			if (ret)
+			if (ret) {
+				irq_release_resources(desc);
 				goto out_mask;
+			}
 		}
 
 		desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/jump_label.c linux-libre-4.9.52-gnu/kernel/jump_label.c
--- linux-libre-4.9-gnu/kernel/jump_label.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/jump_label.c	2017-09-27 08:40:05.000000000 -0400
@@ -182,6 +182,13 @@ void static_key_slow_dec_deferred(struct
 }
 EXPORT_SYMBOL_GPL(static_key_slow_dec_deferred);
 
+void static_key_deferred_flush(struct static_key_deferred *key)
+{
+	STATIC_KEY_CHECK_USE();
+	flush_delayed_work(&key->work);
+}
+EXPORT_SYMBOL_GPL(static_key_deferred_flush);
+
 void jump_label_rate_limit(struct static_key_deferred *key,
 		unsigned long rl)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/kprobes.c linux-libre-4.9.52-gnu/kernel/kprobes.c
--- linux-libre-4.9-gnu/kernel/kprobes.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/kprobes.c	2017-09-27 08:40:05.000000000 -0400
@@ -563,7 +563,7 @@ static void kprobe_optimizer(struct work
 }
 
 /* Wait for completing optimization and unoptimization */
-static void wait_for_kprobe_optimizer(void)
+void wait_for_kprobe_optimizer(void)
 {
 	mutex_lock(&kprobe_mutex);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/kthread.c linux-libre-4.9.52-gnu/kernel/kthread.c
--- linux-libre-4.9-gnu/kernel/kthread.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/kthread.c	2017-09-27 08:40:05.000000000 -0400
@@ -18,6 +18,7 @@
 #include <linux/freezer.h>
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
+#include <linux/cgroup.h>
 #include <trace/events/sched.h>
 
 static DEFINE_SPINLOCK(kthread_create_lock);
@@ -205,6 +206,7 @@ static int kthread(void *_create)
 	ret = -EINTR;
 
 	if (!test_bit(KTHREAD_SHOULD_STOP, &self.flags)) {
+		cgroup_kthread_ready();
 		__kthread_parkme(&self);
 		ret = threadfn(data);
 	}
@@ -530,6 +532,7 @@ int kthreadd(void *unused)
 	set_mems_allowed(node_states[N_MEMORY]);
 
 	current->flags |= PF_NOFREEZE;
+	cgroup_init_kthreadd();
 
 	for (;;) {
 		set_current_state(TASK_INTERRUPTIBLE);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/locking/locktorture.c linux-libre-4.9.52-gnu/kernel/locking/locktorture.c
--- linux-libre-4.9-gnu/kernel/locking/locktorture.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/locking/locktorture.c	2017-09-27 08:40:05.000000000 -0400
@@ -780,6 +780,10 @@ static void lock_torture_cleanup(void)
 	else
 		lock_torture_print_module_parms(cxt.cur_ops,
 						"End of test: SUCCESS");
+
+	kfree(cxt.lwsa);
+	kfree(cxt.lrsa);
+
 end:
 	torture_cleanup_end();
 }
@@ -924,6 +928,8 @@ static int __init lock_torture_init(void
 				       GFP_KERNEL);
 		if (reader_tasks == NULL) {
 			VERBOSE_TOROUT_ERRSTRING("reader_tasks: Out of memory");
+			kfree(writer_tasks);
+			writer_tasks = NULL;
 			firsterr = -ENOMEM;
 			goto unwind;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/locking/rwsem-spinlock.c linux-libre-4.9.52-gnu/kernel/locking/rwsem-spinlock.c
--- linux-libre-4.9-gnu/kernel/locking/rwsem-spinlock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/locking/rwsem-spinlock.c	2017-09-27 08:40:05.000000000 -0400
@@ -216,10 +216,8 @@ int __sched __down_write_common(struct r
 		 */
 		if (sem->count == 0)
 			break;
-		if (signal_pending_state(state, current)) {
-			ret = -EINTR;
-			goto out;
-		}
+		if (signal_pending_state(state, current))
+			goto out_nolock;
 		set_task_state(tsk, state);
 		raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
 		schedule();
@@ -227,12 +225,19 @@ int __sched __down_write_common(struct r
 	}
 	/* got the lock */
 	sem->count = -1;
-out:
 	list_del(&waiter.list);
 
 	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
 
 	return ret;
+
+out_nolock:
+	list_del(&waiter.list);
+	if (!list_empty(&sem->wait_list) && sem->count >= 0)
+		__rwsem_do_wake(sem, 0);
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+
+	return -EINTR;
 }
 
 void __sched __down_write(struct rw_semaphore *sem)
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/locking/spinlock_debug.c linux-libre-4.9.52-gnu/kernel/locking/spinlock_debug.c
--- linux-libre-4.9-gnu/kernel/locking/spinlock_debug.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/locking/spinlock_debug.c	2017-09-27 08:40:05.000000000 -0400
@@ -103,38 +103,14 @@ static inline void debug_spin_unlock(raw
 	lock->owner_cpu = -1;
 }
 
-static void __spin_lock_debug(raw_spinlock_t *lock)
-{
-	u64 i;
-	u64 loops = loops_per_jiffy * HZ;
-
-	for (i = 0; i < loops; i++) {
-		if (arch_spin_trylock(&lock->raw_lock))
-			return;
-		__delay(1);
-	}
-	/* lockup suspected: */
-	spin_dump(lock, "lockup suspected");
-#ifdef CONFIG_SMP
-	trigger_all_cpu_backtrace();
-#endif
-
-	/*
-	 * The trylock above was causing a livelock.  Give the lower level arch
-	 * specific lock code a chance to acquire the lock. We have already
-	 * printed a warning/backtrace at this point. The non-debug arch
-	 * specific code might actually succeed in acquiring the lock.  If it is
-	 * not successful, the end-result is the same - there is no forward
-	 * progress.
-	 */
-	arch_spin_lock(&lock->raw_lock);
-}
-
+/*
+ * We are now relying on the NMI watchdog to detect lockup instead of doing
+ * the detection here with an unfair lock which can cause problem of its own.
+ */
 void do_raw_spin_lock(raw_spinlock_t *lock)
 {
 	debug_spin_lock_before(lock);
-	if (unlikely(!arch_spin_trylock(&lock->raw_lock)))
-		__spin_lock_debug(lock);
+	arch_spin_lock(&lock->raw_lock);
 	debug_spin_lock_after(lock);
 }
 
@@ -172,32 +148,6 @@ static void rwlock_bug(rwlock_t *lock, c
 
 #define RWLOCK_BUG_ON(cond, lock, msg) if (unlikely(cond)) rwlock_bug(lock, msg)
 
-#if 0		/* __write_lock_debug() can lock up - maybe this can too? */
-static void __read_lock_debug(rwlock_t *lock)
-{
-	u64 i;
-	u64 loops = loops_per_jiffy * HZ;
-	int print_once = 1;
-
-	for (;;) {
-		for (i = 0; i < loops; i++) {
-			if (arch_read_trylock(&lock->raw_lock))
-				return;
-			__delay(1);
-		}
-		/* lockup suspected: */
-		if (print_once) {
-			print_once = 0;
-			printk(KERN_EMERG "BUG: read-lock lockup on CPU#%d, "
-					"%s/%d, %p\n",
-				raw_smp_processor_id(), current->comm,
-				current->pid, lock);
-			dump_stack();
-		}
-	}
-}
-#endif
-
 void do_raw_read_lock(rwlock_t *lock)
 {
 	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
@@ -247,32 +197,6 @@ static inline void debug_write_unlock(rw
 	lock->owner_cpu = -1;
 }
 
-#if 0		/* This can cause lockups */
-static void __write_lock_debug(rwlock_t *lock)
-{
-	u64 i;
-	u64 loops = loops_per_jiffy * HZ;
-	int print_once = 1;
-
-	for (;;) {
-		for (i = 0; i < loops; i++) {
-			if (arch_write_trylock(&lock->raw_lock))
-				return;
-			__delay(1);
-		}
-		/* lockup suspected: */
-		if (print_once) {
-			print_once = 0;
-			printk(KERN_EMERG "BUG: write-lock lockup on CPU#%d, "
-					"%s/%d, %p\n",
-				raw_smp_processor_id(), current->comm,
-				current->pid, lock);
-			dump_stack();
-		}
-	}
-}
-#endif
-
 void do_raw_write_lock(rwlock_t *lock)
 {
 	debug_write_lock_before(lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/Makefile linux-libre-4.9.52-gnu/kernel/Makefile
--- linux-libre-4.9-gnu/kernel/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -84,6 +84,7 @@ obj-$(CONFIG_KPROBES) += kprobes.o
 obj-$(CONFIG_KGDB) += debug/
 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
+obj-$(CONFIG_HARDLOCKUP_DETECTOR) += watchdog_hld.o
 obj-$(CONFIG_SECCOMP) += seccomp.o
 obj-$(CONFIG_RELAY) += relay.o
 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/membarrier.c linux-libre-4.9.52-gnu/kernel/membarrier.c
--- linux-libre-4.9-gnu/kernel/membarrier.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/membarrier.c	2017-09-27 08:40:05.000000000 -0400
@@ -16,6 +16,7 @@
 
 #include <linux/syscalls.h>
 #include <linux/membarrier.h>
+#include <linux/tick.h>
 
 /*
  * Bitmask made from a "or" of all commands within enum membarrier_cmd,
@@ -51,6 +52,9 @@
  */
 SYSCALL_DEFINE2(membarrier, int, cmd, int, flags)
 {
+	/* MEMBARRIER_CMD_SHARED is not compatible with nohz_full. */
+	if (tick_nohz_full_enabled())
+		return -ENOSYS;
 	if (unlikely(flags))
 		return -EINVAL;
 	switch (cmd) {
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/memremap.c linux-libre-4.9.52-gnu/kernel/memremap.c
--- linux-libre-4.9-gnu/kernel/memremap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/memremap.c	2017-09-27 08:40:05.000000000 -0400
@@ -246,7 +246,13 @@ static void devm_memremap_pages_release(
 	/* pages are dead and unused, undo the arch mapping */
 	align_start = res->start & ~(SECTION_SIZE - 1);
 	align_size = ALIGN(resource_size(res), SECTION_SIZE);
+
+	lock_device_hotplug();
+	mem_hotplug_begin();
 	arch_remove_memory(align_start, align_size);
+	mem_hotplug_done();
+	unlock_device_hotplug();
+
 	untrack_pfn(NULL, PHYS_PFN(align_start), align_size);
 	pgmap_radix_release(res);
 	dev_WARN_ONCE(dev, pgmap->altmap && pgmap->altmap->alloc,
@@ -358,7 +364,11 @@ void *devm_memremap_pages(struct device
 	if (error)
 		goto err_pfn_remap;
 
+	lock_device_hotplug();
+	mem_hotplug_begin();
 	error = arch_add_memory(nid, align_start, align_size, true);
+	mem_hotplug_done();
+	unlock_device_hotplug();
 	if (error)
 		goto err_add_memory;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/padata.c linux-libre-4.9.52-gnu/kernel/padata.c
--- linux-libre-4.9-gnu/kernel/padata.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/padata.c	2017-09-27 08:40:05.000000000 -0400
@@ -190,19 +190,20 @@ static struct padata_priv *padata_get_ne
 
 	reorder = &next_queue->reorder;
 
+	spin_lock(&reorder->lock);
 	if (!list_empty(&reorder->list)) {
 		padata = list_entry(reorder->list.next,
 				    struct padata_priv, list);
 
-		spin_lock(&reorder->lock);
 		list_del_init(&padata->list);
 		atomic_dec(&pd->reorder_objects);
-		spin_unlock(&reorder->lock);
 
 		pd->processed++;
 
+		spin_unlock(&reorder->lock);
 		goto out;
 	}
+	spin_unlock(&reorder->lock);
 
 	if (__this_cpu_read(pd->pqueue->cpu_index) == next_queue->cpu_index) {
 		padata = ERR_PTR(-ENODATA);
@@ -357,7 +358,7 @@ static int padata_setup_cpumasks(struct
 
 	cpumask_and(pd->cpumask.pcpu, pcpumask, cpu_online_mask);
 	if (!alloc_cpumask_var(&pd->cpumask.cbcpu, GFP_KERNEL)) {
-		free_cpumask_var(pd->cpumask.cbcpu);
+		free_cpumask_var(pd->cpumask.pcpu);
 		return -ENOMEM;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/panic.c linux-libre-4.9.52-gnu/kernel/panic.c
--- linux-libre-4.9-gnu/kernel/panic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/panic.c	2017-09-27 08:40:05.000000000 -0400
@@ -249,7 +249,7 @@ void panic(const char *fmt, ...)
 		 * Delay timeout seconds before rebooting the machine.
 		 * We can't use the "normal" timers since we just panicked.
 		 */
-		pr_emerg("Rebooting in %d seconds..", panic_timeout);
+		pr_emerg("Rebooting in %d seconds..\n", panic_timeout);
 
 		for (i = 0; i < panic_timeout * 1000; i += PANIC_TIMER_STEP) {
 			touch_nmi_watchdog();
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/pid.c linux-libre-4.9.52-gnu/kernel/pid.c
--- linux-libre-4.9-gnu/kernel/pid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/pid.c	2017-09-27 08:40:05.000000000 -0400
@@ -526,8 +526,11 @@ pid_t __task_pid_nr_ns(struct task_struc
 	if (!ns)
 		ns = task_active_pid_ns(current);
 	if (likely(pid_alive(task))) {
-		if (type != PIDTYPE_PID)
+		if (type != PIDTYPE_PID) {
+			if (type == __PIDTYPE_TGID)
+				type = PIDTYPE_PID;
 			task = task->group_leader;
+		}
 		nr = pid_nr_ns(rcu_dereference(task->pids[type].pid), ns);
 	}
 	rcu_read_unlock();
@@ -536,12 +539,6 @@ pid_t __task_pid_nr_ns(struct task_struc
 }
 EXPORT_SYMBOL(__task_pid_nr_ns);
 
-pid_t task_tgid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
-{
-	return pid_nr_ns(task_tgid(tsk), ns);
-}
-EXPORT_SYMBOL(task_tgid_nr_ns);
-
 struct pid_namespace *task_active_pid_ns(struct task_struct *tsk)
 {
 	return ns_of_pid(task_pid(tsk));
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/pid_namespace.c linux-libre-4.9.52-gnu/kernel/pid_namespace.c
--- linux-libre-4.9-gnu/kernel/pid_namespace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/pid_namespace.c	2017-09-27 08:40:05.000000000 -0400
@@ -151,8 +151,12 @@ out:
 
 static void delayed_free_pidns(struct rcu_head *p)
 {
-	kmem_cache_free(pid_ns_cachep,
-			container_of(p, struct pid_namespace, rcu));
+	struct pid_namespace *ns = container_of(p, struct pid_namespace, rcu);
+
+	dec_pid_namespaces(ns->ucounts);
+	put_user_ns(ns->user_ns);
+
+	kmem_cache_free(pid_ns_cachep, ns);
 }
 
 static void destroy_pid_namespace(struct pid_namespace *ns)
@@ -162,8 +166,6 @@ static void destroy_pid_namespace(struct
 	ns_free_inum(&ns->ns);
 	for (i = 0; i < PIDMAP_ENTRIES; i++)
 		kfree(ns->pidmap[i].page);
-	dec_pid_namespaces(ns->ucounts);
-	put_user_ns(ns->user_ns);
 	call_rcu(&ns->rcu, delayed_free_pidns);
 }
 
@@ -272,7 +274,7 @@ void zap_pid_ns_processes(struct pid_nam
 	 * if reparented.
 	 */
 	for (;;) {
-		set_current_state(TASK_UNINTERRUPTIBLE);
+		set_current_state(TASK_INTERRUPTIBLE);
 		if (pid_ns->nr_hashed == init_pids)
 			break;
 		schedule();
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/printk/printk.c linux-libre-4.9.52-gnu/kernel/printk/printk.c
--- linux-libre-4.9-gnu/kernel/printk/printk.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/printk/printk.c	2017-09-27 08:40:05.000000000 -0400
@@ -1564,7 +1564,7 @@ static void call_console_drivers(int lev
 {
 	struct console *con;
 
-	trace_console(text, len);
+	trace_console_rcuidle(text, len);
 
 	if (!console_drivers)
 		return;
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/ptrace.c linux-libre-4.9.52-gnu/kernel/ptrace.c
--- linux-libre-4.9-gnu/kernel/ptrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/ptrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -27,6 +27,44 @@
 #include <linux/cn_proc.h>
 #include <linux/compat.h>
 
+/*
+ * Access another process' address space via ptrace.
+ * Source/target buffer must be kernel space,
+ * Do not walk the page table directly, use get_user_pages
+ */
+int ptrace_access_vm(struct task_struct *tsk, unsigned long addr,
+		     void *buf, int len, unsigned int gup_flags)
+{
+	struct mm_struct *mm;
+	int ret;
+
+	mm = get_task_mm(tsk);
+	if (!mm)
+		return 0;
+
+	if (!tsk->ptrace ||
+	    (current != tsk->parent) ||
+	    ((get_dumpable(mm) != SUID_DUMP_USER) &&
+	     !ptracer_capable(tsk, mm->user_ns))) {
+		mmput(mm);
+		return 0;
+	}
+
+	ret = __access_remote_vm(tsk, mm, addr, buf, len, gup_flags);
+	mmput(mm);
+
+	return ret;
+}
+
+
+void __ptrace_link(struct task_struct *child, struct task_struct *new_parent,
+		   const struct cred *ptracer_cred)
+{
+	BUG_ON(!list_empty(&child->ptrace_entry));
+	list_add(&child->ptrace_entry, &new_parent->ptraced);
+	child->parent = new_parent;
+	child->ptracer_cred = get_cred(ptracer_cred);
+}
 
 /*
  * ptrace a task: make the debugger its new parent and
@@ -34,11 +72,11 @@
  *
  * Must be called with the tasklist lock write-held.
  */
-void __ptrace_link(struct task_struct *child, struct task_struct *new_parent)
+static void ptrace_link(struct task_struct *child, struct task_struct *new_parent)
 {
-	BUG_ON(!list_empty(&child->ptrace_entry));
-	list_add(&child->ptrace_entry, &new_parent->ptraced);
-	child->parent = new_parent;
+	rcu_read_lock();
+	__ptrace_link(child, new_parent, __task_cred(new_parent));
+	rcu_read_unlock();
 }
 
 /**
@@ -71,12 +109,16 @@ void __ptrace_link(struct task_struct *c
  */
 void __ptrace_unlink(struct task_struct *child)
 {
+	const struct cred *old_cred;
 	BUG_ON(!child->ptrace);
 
 	clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 
 	child->parent = child->real_parent;
 	list_del_init(&child->ptrace_entry);
+	old_cred = child->ptracer_cred;
+	child->ptracer_cred = NULL;
+	put_cred(old_cred);
 
 	spin_lock(&child->sighand->siglock);
 	child->ptrace = 0;
@@ -145,11 +187,17 @@ static void ptrace_unfreeze_traced(struc
 
 	WARN_ON(!task->ptrace || task->parent != current);
 
+	/*
+	 * PTRACE_LISTEN can allow ptrace_trap_notify to wake us up remotely.
+	 * Recheck state under the lock to close this race.
+	 */
 	spin_lock_irq(&task->sighand->siglock);
-	if (__fatal_signal_pending(task))
-		wake_up_state(task, __TASK_TRACED);
-	else
-		task->state = TASK_TRACED;
+	if (task->state == __TASK_TRACED) {
+		if (__fatal_signal_pending(task))
+			wake_up_state(task, __TASK_TRACED);
+		else
+			task->state = TASK_TRACED;
+	}
 	spin_unlock_irq(&task->sighand->siglock);
 }
 
@@ -220,7 +268,7 @@ static int ptrace_has_cap(struct user_na
 static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
 {
 	const struct cred *cred = current_cred(), *tcred;
-	int dumpable = 0;
+	struct mm_struct *mm;
 	kuid_t caller_uid;
 	kgid_t caller_gid;
 
@@ -271,16 +319,11 @@ static int __ptrace_may_access(struct ta
 	return -EPERM;
 ok:
 	rcu_read_unlock();
-	smp_rmb();
-	if (task->mm)
-		dumpable = get_dumpable(task->mm);
-	rcu_read_lock();
-	if (dumpable != SUID_DUMP_USER &&
-	    !ptrace_has_cap(__task_cred(task)->user_ns, mode)) {
-		rcu_read_unlock();
-		return -EPERM;
-	}
-	rcu_read_unlock();
+	mm = task->mm;
+	if (mm &&
+	    ((get_dumpable(mm) != SUID_DUMP_USER) &&
+	     !ptrace_has_cap(mm->user_ns, mode)))
+	    return -EPERM;
 
 	return security_ptrace_access_check(task, mode);
 }
@@ -344,13 +387,9 @@ static int ptrace_attach(struct task_str
 
 	if (seize)
 		flags |= PT_SEIZED;
-	rcu_read_lock();
-	if (ns_capable(__task_cred(task)->user_ns, CAP_SYS_PTRACE))
-		flags |= PT_PTRACE_CAP;
-	rcu_read_unlock();
 	task->ptrace = flags;
 
-	__ptrace_link(task, current);
+	ptrace_link(task, current);
 
 	/* SEIZE doesn't trap tracee on attach */
 	if (!seize)
@@ -423,7 +462,7 @@ static int ptrace_traceme(void)
 		 */
 		if (!ret && !(current->real_parent->flags & PF_EXITING)) {
 			current->ptrace = PT_PTRACED;
-			__ptrace_link(current, current->real_parent);
+			ptrace_link(current, current->real_parent);
 		}
 	}
 	write_unlock_irq(&tasklist_lock);
@@ -537,7 +576,8 @@ int ptrace_readdata(struct task_struct *
 		int this_len, retval;
 
 		this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
-		retval = access_process_vm(tsk, src, buf, this_len, FOLL_FORCE);
+		retval = ptrace_access_vm(tsk, src, buf, this_len, FOLL_FORCE);
+
 		if (!retval) {
 			if (copied)
 				break;
@@ -564,7 +604,7 @@ int ptrace_writedata(struct task_struct
 		this_len = (len > sizeof(buf)) ? sizeof(buf) : len;
 		if (copy_from_user(buf, src, this_len))
 			return -EFAULT;
-		retval = access_process_vm(tsk, dst, buf, this_len,
+		retval = ptrace_access_vm(tsk, dst, buf, this_len,
 				FOLL_FORCE | FOLL_WRITE);
 		if (!retval) {
 			if (copied)
@@ -1128,7 +1168,7 @@ int generic_ptrace_peekdata(struct task_
 	unsigned long tmp;
 	int copied;
 
-	copied = access_process_vm(tsk, addr, &tmp, sizeof(tmp), FOLL_FORCE);
+	copied = ptrace_access_vm(tsk, addr, &tmp, sizeof(tmp), FOLL_FORCE);
 	if (copied != sizeof(tmp))
 		return -EIO;
 	return put_user(tmp, (unsigned long __user *)data);
@@ -1139,7 +1179,7 @@ int generic_ptrace_pokedata(struct task_
 {
 	int copied;
 
-	copied = access_process_vm(tsk, addr, &data, sizeof(data),
+	copied = ptrace_access_vm(tsk, addr, &data, sizeof(data),
 			FOLL_FORCE | FOLL_WRITE);
 	return (copied == sizeof(data)) ? 0 : -EIO;
 }
@@ -1157,7 +1197,7 @@ int compat_ptrace_request(struct task_st
 	switch (request) {
 	case PTRACE_PEEKTEXT:
 	case PTRACE_PEEKDATA:
-		ret = access_process_vm(child, addr, &word, sizeof(word),
+		ret = ptrace_access_vm(child, addr, &word, sizeof(word),
 				FOLL_FORCE);
 		if (ret != sizeof(word))
 			ret = -EIO;
@@ -1167,7 +1207,7 @@ int compat_ptrace_request(struct task_st
 
 	case PTRACE_POKETEXT:
 	case PTRACE_POKEDATA:
-		ret = access_process_vm(child, addr, &data, sizeof(data),
+		ret = ptrace_access_vm(child, addr, &data, sizeof(data),
 				FOLL_FORCE | FOLL_WRITE);
 		ret = (ret != sizeof(data) ? -EIO : 0);
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/rcu/rcu.h linux-libre-4.9.52-gnu/kernel/rcu/rcu.h
--- linux-libre-4.9-gnu/kernel/rcu/rcu.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/rcu/rcu.h	2017-09-27 08:40:05.000000000 -0400
@@ -136,6 +136,7 @@ int rcu_jiffies_till_stall_check(void);
 #define TPS(x)  tracepoint_string(x)
 
 void rcu_early_boot_tests(void);
+void rcu_test_sync_prims(void);
 
 /*
  * This function really isn't for public consumption, but RCU is special in
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/rcu/tiny.c linux-libre-4.9.52-gnu/kernel/rcu/tiny.c
--- linux-libre-4.9-gnu/kernel/rcu/tiny.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/rcu/tiny.c	2017-09-27 08:40:05.000000000 -0400
@@ -185,9 +185,6 @@ static __latent_entropy void rcu_process
  * benefits of doing might_sleep() to reduce latency.)
  *
  * Cool, huh?  (Due to Josh Triplett.)
- *
- * But we want to make this a static inline later.  The cond_resched()
- * currently makes this problematic.
  */
 void synchronize_sched(void)
 {
@@ -195,7 +192,6 @@ void synchronize_sched(void)
 			 lock_is_held(&rcu_lock_map) ||
 			 lock_is_held(&rcu_sched_lock_map),
 			 "Illegal synchronize_sched() in RCU read-side critical section");
-	cond_resched();
 }
 EXPORT_SYMBOL_GPL(synchronize_sched);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/rcu/tiny_plugin.h linux-libre-4.9.52-gnu/kernel/rcu/tiny_plugin.h
--- linux-libre-4.9-gnu/kernel/rcu/tiny_plugin.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/rcu/tiny_plugin.h	2017-09-27 08:40:05.000000000 -0400
@@ -60,12 +60,17 @@ EXPORT_SYMBOL_GPL(rcu_scheduler_active);
 
 /*
  * During boot, we forgive RCU lockdep issues.  After this function is
- * invoked, we start taking RCU lockdep issues seriously.
+ * invoked, we start taking RCU lockdep issues seriously.  Note that unlike
+ * Tree RCU, Tiny RCU transitions directly from RCU_SCHEDULER_INACTIVE
+ * to RCU_SCHEDULER_RUNNING, skipping the RCU_SCHEDULER_INIT stage.
+ * The reason for this is that Tiny RCU does not need kthreads, so does
+ * not have to care about the fact that the scheduler is half-initialized
+ * at a certain phase of the boot process.
  */
 void __init rcu_scheduler_starting(void)
 {
 	WARN_ON(nr_context_switches() > 0);
-	rcu_scheduler_active = 1;
+	rcu_scheduler_active = RCU_SCHEDULER_RUNNING;
 }
 
 #endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/rcu/tree.c linux-libre-4.9.52-gnu/kernel/rcu/tree.c
--- linux-libre-4.9-gnu/kernel/rcu/tree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/rcu/tree.c	2017-09-27 08:40:05.000000000 -0400
@@ -127,13 +127,16 @@ int rcu_num_nodes __read_mostly = NUM_RC
 int sysctl_panic_on_rcu_stall __read_mostly;
 
 /*
- * The rcu_scheduler_active variable transitions from zero to one just
- * before the first task is spawned.  So when this variable is zero, RCU
- * can assume that there is but one task, allowing RCU to (for example)
+ * The rcu_scheduler_active variable is initialized to the value
+ * RCU_SCHEDULER_INACTIVE and transitions RCU_SCHEDULER_INIT just before the
+ * first task is spawned.  So when this variable is RCU_SCHEDULER_INACTIVE,
+ * RCU can assume that there is but one task, allowing RCU to (for example)
  * optimize synchronize_rcu() to a simple barrier().  When this variable
- * is one, RCU must actually do all the hard work required to detect real
- * grace periods.  This variable is also used to suppress boot-time false
- * positives from lockdep-RCU error checking.
+ * is RCU_SCHEDULER_INIT, RCU must actually do all the hard work required
+ * to detect real grace periods.  This variable is also used to suppress
+ * boot-time false positives from lockdep-RCU error checking.  Finally, it
+ * transitions from RCU_SCHEDULER_INIT to RCU_SCHEDULER_RUNNING after RCU
+ * is fully initialized, including all of its kthreads having been spawned.
  */
 int rcu_scheduler_active __read_mostly;
 EXPORT_SYMBOL_GPL(rcu_scheduler_active);
@@ -3985,18 +3988,22 @@ static int __init rcu_spawn_gp_kthread(v
 early_initcall(rcu_spawn_gp_kthread);
 
 /*
- * This function is invoked towards the end of the scheduler's initialization
- * process.  Before this is called, the idle task might contain
- * RCU read-side critical sections (during which time, this idle
- * task is booting the system).  After this function is called, the
- * idle tasks are prohibited from containing RCU read-side critical
- * sections.  This function also enables RCU lockdep checking.
+ * This function is invoked towards the end of the scheduler's
+ * initialization process.  Before this is called, the idle task might
+ * contain synchronous grace-period primitives (during which time, this idle
+ * task is booting the system, and such primitives are no-ops).  After this
+ * function is called, any synchronous grace-period primitives are run as
+ * expedited, with the requesting task driving the grace period forward.
+ * A later core_initcall() rcu_exp_runtime_mode() will switch to full
+ * runtime RCU functionality.
  */
 void rcu_scheduler_starting(void)
 {
 	WARN_ON(num_online_cpus() != 1);
 	WARN_ON(nr_context_switches() > 0);
-	rcu_scheduler_active = 1;
+	rcu_test_sync_prims();
+	rcu_scheduler_active = RCU_SCHEDULER_INIT;
+	rcu_test_sync_prims();
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/rcu/tree_exp.h linux-libre-4.9.52-gnu/kernel/rcu/tree_exp.h
--- linux-libre-4.9-gnu/kernel/rcu/tree_exp.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/rcu/tree_exp.h	2017-09-27 08:40:05.000000000 -0400
@@ -522,18 +522,28 @@ struct rcu_exp_work {
 };
 
 /*
+ * Common code to drive an expedited grace period forward, used by
+ * workqueues and mid-boot-time tasks.
+ */
+static void rcu_exp_sel_wait_wake(struct rcu_state *rsp,
+				  smp_call_func_t func, unsigned long s)
+{
+	/* Initialize the rcu_node tree in preparation for the wait. */
+	sync_rcu_exp_select_cpus(rsp, func);
+
+	/* Wait and clean up, including waking everyone. */
+	rcu_exp_wait_wake(rsp, s);
+}
+
+/*
  * Work-queue handler to drive an expedited grace period forward.
  */
 static void wait_rcu_exp_gp(struct work_struct *wp)
 {
 	struct rcu_exp_work *rewp;
 
-	/* Initialize the rcu_node tree in preparation for the wait. */
 	rewp = container_of(wp, struct rcu_exp_work, rew_work);
-	sync_rcu_exp_select_cpus(rewp->rew_rsp, rewp->rew_func);
-
-	/* Wait and clean up, including waking everyone. */
-	rcu_exp_wait_wake(rewp->rew_rsp, rewp->rew_s);
+	rcu_exp_sel_wait_wake(rewp->rew_rsp, rewp->rew_func, rewp->rew_s);
 }
 
 /*
@@ -559,12 +569,18 @@ static void _synchronize_rcu_expedited(s
 	if (exp_funnel_lock(rsp, s))
 		return;  /* Someone else did our work for us. */
 
-	/* Marshall arguments and schedule the expedited grace period. */
-	rew.rew_func = func;
-	rew.rew_rsp = rsp;
-	rew.rew_s = s;
-	INIT_WORK_ONSTACK(&rew.rew_work, wait_rcu_exp_gp);
-	schedule_work(&rew.rew_work);
+	/* Ensure that load happens before action based on it. */
+	if (unlikely(rcu_scheduler_active == RCU_SCHEDULER_INIT)) {
+		/* Direct call during scheduler init and early_initcalls(). */
+		rcu_exp_sel_wait_wake(rsp, func, s);
+	} else {
+		/* Marshall arguments & schedule the expedited grace period. */
+		rew.rew_func = func;
+		rew.rew_rsp = rsp;
+		rew.rew_s = s;
+		INIT_WORK_ONSTACK(&rew.rew_work, wait_rcu_exp_gp);
+		schedule_work(&rew.rew_work);
+	}
 
 	/* Wait for expedited grace period to complete. */
 	rdp = per_cpu_ptr(rsp->rda, raw_smp_processor_id());
@@ -666,6 +682,8 @@ void synchronize_rcu_expedited(void)
 {
 	struct rcu_state *rsp = rcu_state_p;
 
+	if (rcu_scheduler_active == RCU_SCHEDULER_INACTIVE)
+		return;
 	_synchronize_rcu_expedited(rsp, sync_rcu_exp_handler);
 }
 EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
@@ -683,3 +701,15 @@ void synchronize_rcu_expedited(void)
 EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
 
 #endif /* #else #ifdef CONFIG_PREEMPT_RCU */
+
+/*
+ * Switch to run-time mode once Tree RCU has fully initialized.
+ */
+static int __init rcu_exp_runtime_mode(void)
+{
+	rcu_test_sync_prims();
+	rcu_scheduler_active = RCU_SCHEDULER_RUNNING;
+	rcu_test_sync_prims();
+	return 0;
+}
+core_initcall(rcu_exp_runtime_mode);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/rcu/tree_plugin.h linux-libre-4.9.52-gnu/kernel/rcu/tree_plugin.h
--- linux-libre-4.9-gnu/kernel/rcu/tree_plugin.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/rcu/tree_plugin.h	2017-09-27 08:40:05.000000000 -0400
@@ -670,7 +670,7 @@ void synchronize_rcu(void)
 			 lock_is_held(&rcu_lock_map) ||
 			 lock_is_held(&rcu_sched_lock_map),
 			 "Illegal synchronize_rcu() in RCU read-side critical section");
-	if (!rcu_scheduler_active)
+	if (rcu_scheduler_active == RCU_SCHEDULER_INACTIVE)
 		return;
 	if (rcu_gp_is_expedited())
 		synchronize_rcu_expedited();
@@ -1767,6 +1767,7 @@ static void wake_nocb_leader(struct rcu_
 	if (READ_ONCE(rdp_leader->nocb_leader_sleep) || force) {
 		/* Prior smp_mb__after_atomic() orders against prior enqueue. */
 		WRITE_ONCE(rdp_leader->nocb_leader_sleep, false);
+		smp_mb(); /* ->nocb_leader_sleep before swake_up(). */
 		swake_up(&rdp_leader->nocb_wq);
 	}
 }
@@ -2021,6 +2022,7 @@ wait_again:
 	 * nocb_gp_head, where they await a grace period.
 	 */
 	gotcbs = false;
+	smp_mb(); /* wakeup before ->nocb_head reads. */
 	for (rdp = my_rdp; rdp; rdp = rdp->nocb_next_follower) {
 		rdp->nocb_gp_head = READ_ONCE(rdp->nocb_head);
 		if (!rdp->nocb_gp_head)
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/rcu/update.c linux-libre-4.9.52-gnu/kernel/rcu/update.c
--- linux-libre-4.9-gnu/kernel/rcu/update.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/rcu/update.c	2017-09-27 08:40:05.000000000 -0400
@@ -121,11 +121,14 @@ EXPORT_SYMBOL(rcu_read_lock_sched_held);
  * Should expedited grace-period primitives always fall back to their
  * non-expedited counterparts?  Intended for use within RCU.  Note
  * that if the user specifies both rcu_expedited and rcu_normal, then
- * rcu_normal wins.
+ * rcu_normal wins.  (Except during the time period during boot from
+ * when the first task is spawned until the rcu_exp_runtime_mode()
+ * core_initcall() is invoked, at which point everything is expedited.)
  */
 bool rcu_gp_is_normal(void)
 {
-	return READ_ONCE(rcu_normal);
+	return READ_ONCE(rcu_normal) &&
+	       rcu_scheduler_active != RCU_SCHEDULER_INIT;
 }
 EXPORT_SYMBOL_GPL(rcu_gp_is_normal);
 
@@ -135,13 +138,14 @@ static atomic_t rcu_expedited_nesting =
 /*
  * Should normal grace-period primitives be expedited?  Intended for
  * use within RCU.  Note that this function takes the rcu_expedited
- * sysfs/boot variable into account as well as the rcu_expedite_gp()
- * nesting.  So looping on rcu_unexpedite_gp() until rcu_gp_is_expedited()
- * returns false is a -really- bad idea.
+ * sysfs/boot variable and rcu_scheduler_active into account as well
+ * as the rcu_expedite_gp() nesting.  So looping on rcu_unexpedite_gp()
+ * until rcu_gp_is_expedited() returns false is a -really- bad idea.
  */
 bool rcu_gp_is_expedited(void)
 {
-	return rcu_expedited || atomic_read(&rcu_expedited_nesting);
+	return rcu_expedited || atomic_read(&rcu_expedited_nesting) ||
+	       rcu_scheduler_active == RCU_SCHEDULER_INIT;
 }
 EXPORT_SYMBOL_GPL(rcu_gp_is_expedited);
 
@@ -257,7 +261,7 @@ EXPORT_SYMBOL_GPL(rcu_callback_map);
 
 int notrace debug_lockdep_rcu_enabled(void)
 {
-	return rcu_scheduler_active && debug_locks &&
+	return rcu_scheduler_active != RCU_SCHEDULER_INACTIVE && debug_locks &&
 	       current->lockdep_recursion == 0;
 }
 EXPORT_SYMBOL_GPL(debug_lockdep_rcu_enabled);
@@ -591,7 +595,7 @@ EXPORT_SYMBOL_GPL(call_rcu_tasks);
 void synchronize_rcu_tasks(void)
 {
 	/* Complain if the scheduler has not started.  */
-	RCU_LOCKDEP_WARN(!rcu_scheduler_active,
+	RCU_LOCKDEP_WARN(rcu_scheduler_active == RCU_SCHEDULER_INACTIVE,
 			 "synchronize_rcu_tasks called too soon");
 
 	/* Wait for the grace period. */
@@ -813,6 +817,23 @@ static void rcu_spawn_tasks_kthread(void
 
 #endif /* #ifdef CONFIG_TASKS_RCU */
 
+/*
+ * Test each non-SRCU synchronous grace-period wait API.  This is
+ * useful just after a change in mode for these primitives, and
+ * during early boot.
+ */
+void rcu_test_sync_prims(void)
+{
+	if (!IS_ENABLED(CONFIG_PROVE_RCU))
+		return;
+	synchronize_rcu();
+	synchronize_rcu_bh();
+	synchronize_sched();
+	synchronize_rcu_expedited();
+	synchronize_rcu_bh_expedited();
+	synchronize_sched_expedited();
+}
+
 #ifdef CONFIG_PROVE_RCU
 
 /*
@@ -865,6 +886,7 @@ void rcu_early_boot_tests(void)
 		early_boot_test_call_rcu_bh();
 	if (rcu_self_test_sched)
 		early_boot_test_call_rcu_sched();
+	rcu_test_sync_prims();
 }
 
 static int rcu_verify_early_boot_tests(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/relay.c linux-libre-4.9.52-gnu/kernel/relay.c
--- linux-libre-4.9-gnu/kernel/relay.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/relay.c	2017-09-27 08:40:05.000000000 -0400
@@ -809,11 +809,11 @@ void relay_subbufs_consumed(struct rchan
 {
 	struct rchan_buf *buf;
 
-	if (!chan)
+	if (!chan || cpu >= NR_CPUS)
 		return;
 
 	buf = *per_cpu_ptr(chan->buf, cpu);
-	if (cpu >= NR_CPUS || !buf || subbufs_consumed > chan->n_subbufs)
+	if (!buf || subbufs_consumed > chan->n_subbufs)
 		return;
 
 	if (subbufs_consumed > buf->subbufs_produced - buf->subbufs_consumed)
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sched/core.c linux-libre-4.9.52-gnu/kernel/sched/core.c
--- linux-libre-4.9-gnu/kernel/sched/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sched/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -5469,7 +5469,7 @@ void idle_task_exit(void)
 	BUG_ON(cpu_online(smp_processor_id()));
 
 	if (mm != &init_mm) {
-		switch_mm_irqs_off(mm, &init_mm, current);
+		switch_mm(mm, &init_mm, current);
 		finish_arch_post_lock_switch();
 	}
 	mmdrop(mm);
@@ -6102,6 +6102,9 @@ enum s_alloc {
  * Build an iteration mask that can exclude certain CPUs from the upwards
  * domain traversal.
  *
+ * Only CPUs that can arrive at this group should be considered to continue
+ * balancing.
+ *
  * Asymmetric node setups can result in situations where the domain tree is of
  * unequal depth, make sure to skip domains that already cover the entire
  * range.
@@ -6113,18 +6116,31 @@ enum s_alloc {
  */
 static void build_group_mask(struct sched_domain *sd, struct sched_group *sg)
 {
-	const struct cpumask *span = sched_domain_span(sd);
+	const struct cpumask *sg_span = sched_group_cpus(sg);
 	struct sd_data *sdd = sd->private;
 	struct sched_domain *sibling;
 	int i;
 
-	for_each_cpu(i, span) {
+	for_each_cpu(i, sg_span) {
 		sibling = *per_cpu_ptr(sdd->sd, i);
-		if (!cpumask_test_cpu(i, sched_domain_span(sibling)))
+
+		/*
+		 * Can happen in the asymmetric case, where these siblings are
+		 * unused. The mask will not be empty because those CPUs that
+		 * do have the top domain _should_ span the domain.
+		 */
+		if (!sibling->child)
+			continue;
+
+		/* If we would not end up here, we can't continue from here */
+		if (!cpumask_equal(sg_span, sched_domain_span(sibling->child)))
 			continue;
 
 		cpumask_set_cpu(i, sched_group_mask(sg));
 	}
+
+	/* We must not have empty masks here */
+	WARN_ON_ONCE(cpumask_empty(sched_group_mask(sg)));
 }
 
 /*
@@ -6148,7 +6164,7 @@ build_overlap_sched_groups(struct sched_
 
 	cpumask_clear(covered);
 
-	for_each_cpu(i, span) {
+	for_each_cpu_wrap(i, span, cpu) {
 		struct cpumask *sg_span;
 
 		if (cpumask_test_cpu(i, covered))
@@ -7422,22 +7438,6 @@ int sched_cpu_dying(unsigned int cpu)
 }
 #endif
 
-#ifdef CONFIG_SCHED_SMT
-DEFINE_STATIC_KEY_FALSE(sched_smt_present);
-
-static void sched_init_smt(void)
-{
-	/*
-	 * We've enumerated all CPUs and will assume that if any CPU
-	 * has SMT siblings, CPU0 will too.
-	 */
-	if (cpumask_weight(cpu_smt_mask(0)) > 1)
-		static_branch_enable(&sched_smt_present);
-}
-#else
-static inline void sched_init_smt(void) { }
-#endif
-
 void __init sched_init_smp(void)
 {
 	cpumask_var_t non_isolated_cpus;
@@ -7467,9 +7467,6 @@ void __init sched_init_smp(void)
 
 	init_sched_rt_class();
 	init_sched_dl_class();
-
-	sched_init_smt();
-
 	sched_smp_initialized = true;
 }
 
@@ -8379,11 +8376,20 @@ cpu_cgroup_css_alloc(struct cgroup_subsy
 	if (IS_ERR(tg))
 		return ERR_PTR(-ENOMEM);
 
-	sched_online_group(tg, parent);
-
 	return &tg->css;
 }
 
+/* Expose task group only after completing cgroup initialization */
+static int cpu_cgroup_css_online(struct cgroup_subsys_state *css)
+{
+	struct task_group *tg = css_tg(css);
+	struct task_group *parent = css_tg(css->parent);
+
+	if (parent)
+		sched_online_group(tg, parent);
+	return 0;
+}
+
 static void cpu_cgroup_css_released(struct cgroup_subsys_state *css)
 {
 	struct task_group *tg = css_tg(css);
@@ -8786,6 +8792,7 @@ static struct cftype cpu_files[] = {
 
 struct cgroup_subsys cpu_cgrp_subsys = {
 	.css_alloc	= cpu_cgroup_css_alloc,
+	.css_online	= cpu_cgroup_css_online,
 	.css_released	= cpu_cgroup_css_released,
 	.css_free	= cpu_cgroup_css_free,
 	.fork		= cpu_cgroup_fork,
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sched/cpufreq_schedutil.c linux-libre-4.9.52-gnu/kernel/sched/cpufreq_schedutil.c
--- linux-libre-4.9-gnu/kernel/sched/cpufreq_schedutil.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sched/cpufreq_schedutil.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,6 +32,7 @@ struct sugov_policy {
 	u64 last_freq_update_time;
 	s64 freq_update_delay_ns;
 	unsigned int next_freq;
+	unsigned int cached_raw_freq;
 
 	/* The next fields are only needed if fast switch cannot be used. */
 	struct irq_work irq_work;
@@ -46,7 +47,6 @@ struct sugov_cpu {
 	struct update_util_data update_util;
 	struct sugov_policy *sg_policy;
 
-	unsigned int cached_raw_freq;
 	unsigned long iowait_boost;
 	unsigned long iowait_boost_max;
 	u64 last_update;
@@ -140,9 +140,9 @@ static unsigned int get_next_freq(struct
 
 	freq = (freq + (freq >> 2)) * util / max;
 
-	if (freq == sg_cpu->cached_raw_freq && sg_policy->next_freq != UINT_MAX)
+	if (freq == sg_policy->cached_raw_freq && sg_policy->next_freq != UINT_MAX)
 		return sg_policy->next_freq;
-	sg_cpu->cached_raw_freq = freq;
+	sg_policy->cached_raw_freq = freq;
 	return cpufreq_driver_resolve_freq(policy, freq);
 }
 
@@ -502,25 +502,19 @@ static int sugov_start(struct cpufreq_po
 	sg_policy->next_freq = UINT_MAX;
 	sg_policy->work_in_progress = false;
 	sg_policy->need_freq_update = false;
+	sg_policy->cached_raw_freq = 0;
 
 	for_each_cpu(cpu, policy->cpus) {
 		struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);
 
+		memset(sg_cpu, 0, sizeof(*sg_cpu));
 		sg_cpu->sg_policy = sg_policy;
-		if (policy_is_shared(policy)) {
-			sg_cpu->util = 0;
-			sg_cpu->max = 0;
-			sg_cpu->flags = SCHED_CPUFREQ_RT;
-			sg_cpu->last_update = 0;
-			sg_cpu->cached_raw_freq = 0;
-			sg_cpu->iowait_boost = 0;
-			sg_cpu->iowait_boost_max = policy->cpuinfo.max_freq;
-			cpufreq_add_update_util_hook(cpu, &sg_cpu->update_util,
-						     sugov_update_shared);
-		} else {
-			cpufreq_add_update_util_hook(cpu, &sg_cpu->update_util,
-						     sugov_update_single);
-		}
+		sg_cpu->flags = SCHED_CPUFREQ_RT;
+		sg_cpu->iowait_boost_max = policy->cpuinfo.max_freq;
+		cpufreq_add_update_util_hook(cpu, &sg_cpu->update_util,
+					     policy_is_shared(policy) ?
+							sugov_update_shared :
+							sugov_update_single);
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sched/deadline.c linux-libre-4.9.52-gnu/kernel/sched/deadline.c
--- linux-libre-4.9-gnu/kernel/sched/deadline.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sched/deadline.c	2017-09-27 08:40:05.000000000 -0400
@@ -1729,12 +1729,11 @@ static void switched_to_dl(struct rq *rq
 #ifdef CONFIG_SMP
 		if (tsk_nr_cpus_allowed(p) > 1 && rq->dl.overloaded)
 			queue_push_tasks(rq);
-#else
+#endif
 		if (dl_task(rq->curr))
 			check_preempt_curr_dl(rq, p, 0);
 		else
 			resched_curr(rq);
-#endif
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sched/fair.c linux-libre-4.9.52-gnu/kernel/sched/fair.c
--- linux-libre-4.9-gnu/kernel/sched/fair.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sched/fair.c	2017-09-27 08:40:05.000000000 -0400
@@ -5310,43 +5310,6 @@ find_idlest_cpu(struct sched_group *grou
 	return shallowest_idle_cpu != -1 ? shallowest_idle_cpu : least_loaded_cpu;
 }
 
-/*
- * Implement a for_each_cpu() variant that starts the scan at a given cpu
- * (@start), and wraps around.
- *
- * This is used to scan for idle CPUs; such that not all CPUs looking for an
- * idle CPU find the same CPU. The down-side is that tasks tend to cycle
- * through the LLC domain.
- *
- * Especially tbench is found sensitive to this.
- */
-
-static int cpumask_next_wrap(int n, const struct cpumask *mask, int start, int *wrapped)
-{
-	int next;
-
-again:
-	next = find_next_bit(cpumask_bits(mask), nr_cpumask_bits, n+1);
-
-	if (*wrapped) {
-		if (next >= start)
-			return nr_cpumask_bits;
-	} else {
-		if (next >= nr_cpumask_bits) {
-			*wrapped = 1;
-			n = -1;
-			goto again;
-		}
-	}
-
-	return next;
-}
-
-#define for_each_cpu_wrap(cpu, mask, start, wrap)				\
-	for ((wrap) = 0, (cpu) = (start)-1;					\
-		(cpu) = cpumask_next_wrap((cpu), (mask), (start), &(wrap)),	\
-		(cpu) < nr_cpumask_bits; )
-
 #ifdef CONFIG_SCHED_SMT
 
 static inline void set_idle_cores(int cpu, int val)
@@ -5376,7 +5339,7 @@ static inline bool test_idle_cores(int c
  * Since SMT siblings share all cache levels, inspecting this limited remote
  * state should be fairly cheap.
  */
-void __update_idle_core(struct rq *rq)
+void update_idle_core(struct rq *rq)
 {
 	int core = cpu_of(rq);
 	int cpu;
@@ -5406,17 +5369,14 @@ unlock:
 static int select_idle_core(struct task_struct *p, struct sched_domain *sd, int target)
 {
 	struct cpumask *cpus = this_cpu_cpumask_var_ptr(select_idle_mask);
-	int core, cpu, wrap;
-
-	if (!static_branch_likely(&sched_smt_present))
-		return -1;
+	int core, cpu;
 
 	if (!test_idle_cores(target, false))
 		return -1;
 
 	cpumask_and(cpus, sched_domain_span(sd), tsk_cpus_allowed(p));
 
-	for_each_cpu_wrap(core, cpus, target, wrap) {
+	for_each_cpu_wrap(core, cpus, target) {
 		bool idle = true;
 
 		for_each_cpu(cpu, cpu_smt_mask(core)) {
@@ -5444,9 +5404,6 @@ static int select_idle_smt(struct task_s
 {
 	int cpu;
 
-	if (!static_branch_likely(&sched_smt_present))
-		return -1;
-
 	for_each_cpu(cpu, cpu_smt_mask(target)) {
 		if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
 			continue;
@@ -5482,7 +5439,7 @@ static int select_idle_cpu(struct task_s
 	u64 avg_cost, avg_idle = this_rq()->avg_idle;
 	u64 time, cost;
 	s64 delta;
-	int cpu, wrap;
+	int cpu;
 
 	this_sd = rcu_dereference(*this_cpu_ptr(&sd_llc));
 	if (!this_sd)
@@ -5499,7 +5456,7 @@ static int select_idle_cpu(struct task_s
 
 	time = local_clock();
 
-	for_each_cpu_wrap(cpu, sched_domain_span(sd), target, wrap) {
+	for_each_cpu_wrap(cpu, sched_domain_span(sd), target) {
 		if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
 			continue;
 		if (idle_cpu(cpu))
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sched/loadavg.c linux-libre-4.9.52-gnu/kernel/sched/loadavg.c
--- linux-libre-4.9-gnu/kernel/sched/loadavg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sched/loadavg.c	2017-09-27 08:40:05.000000000 -0400
@@ -201,8 +201,9 @@ void calc_load_exit_idle(void)
 	struct rq *this_rq = this_rq();
 
 	/*
-	 * If we're still before the sample window, we're done.
+	 * If we're still before the pending sample window, we're done.
 	 */
+	this_rq->calc_load_update = calc_load_update;
 	if (time_before(jiffies, this_rq->calc_load_update))
 		return;
 
@@ -211,7 +212,6 @@ void calc_load_exit_idle(void)
 	 * accounted through the nohz accounting, so skip the entire deal and
 	 * sync up for the next window.
 	 */
-	this_rq->calc_load_update = calc_load_update;
 	if (time_before(jiffies, this_rq->calc_load_update + 10))
 		this_rq->calc_load_update += LOAD_FREQ;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sched/rt.c linux-libre-4.9.52-gnu/kernel/sched/rt.c
--- linux-libre-4.9-gnu/kernel/sched/rt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sched/rt.c	2017-09-27 08:40:05.000000000 -0400
@@ -2198,10 +2198,9 @@ static void switched_to_rt(struct rq *rq
 #ifdef CONFIG_SMP
 		if (tsk_nr_cpus_allowed(p) > 1 && rq->rt.overloaded)
 			queue_push_tasks(rq);
-#else
+#endif /* CONFIG_SMP */
 		if (p->prio < rq->curr->prio)
 			resched_curr(rq);
-#endif /* CONFIG_SMP */
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sched/sched.h linux-libre-4.9.52-gnu/kernel/sched/sched.h
--- linux-libre-4.9-gnu/kernel/sched/sched.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sched/sched.h	2017-09-27 08:40:05.000000000 -0400
@@ -43,6 +43,12 @@ extern void cpu_load_update_active(struc
 static inline void cpu_load_update_active(struct rq *this_rq) { }
 #endif
 
+#ifdef CONFIG_SCHED_SMT
+extern void update_idle_core(struct rq *rq);
+#else
+static inline void update_idle_core(struct rq *rq) { }
+#endif
+
 /*
  * Helpers for converting nanosecond timing to jiffy resolution
  */
@@ -731,23 +737,6 @@ static inline int cpu_of(struct rq *rq)
 #endif
 }
 
-
-#ifdef CONFIG_SCHED_SMT
-
-extern struct static_key_false sched_smt_present;
-
-extern void __update_idle_core(struct rq *rq);
-
-static inline void update_idle_core(struct rq *rq)
-{
-	if (static_branch_unlikely(&sched_smt_present))
-		__update_idle_core(rq);
-}
-
-#else
-static inline void update_idle_core(struct rq *rq) { }
-#endif
-
 DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
 
 #define cpu_rq(cpu)		(&per_cpu(runqueues, (cpu)))
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/signal.c linux-libre-4.9.52-gnu/kernel/signal.c
--- linux-libre-4.9-gnu/kernel/signal.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/signal.c	2017-09-27 08:40:05.000000000 -0400
@@ -346,7 +346,7 @@ static bool task_participate_group_stop(
 	 * fresh group stop.  Read comment in do_signal_stop() for details.
 	 */
 	if (!sig->group_stop_count && !(sig->flags & SIGNAL_STOP_STOPPED)) {
-		sig->flags = SIGNAL_STOP_STOPPED;
+		signal_set_stop_flags(sig, SIGNAL_STOP_STOPPED);
 		return true;
 	}
 	return false;
@@ -503,7 +503,8 @@ int unhandled_signal(struct task_struct
 	return !tsk->ptrace;
 }
 
-static void collect_signal(int sig, struct sigpending *list, siginfo_t *info)
+static void collect_signal(int sig, struct sigpending *list, siginfo_t *info,
+			   bool *resched_timer)
 {
 	struct sigqueue *q, *first = NULL;
 
@@ -525,6 +526,12 @@ static void collect_signal(int sig, stru
 still_pending:
 		list_del_init(&first->list);
 		copy_siginfo(info, &first->info);
+
+		*resched_timer =
+			(first->flags & SIGQUEUE_PREALLOC) &&
+			(info->si_code == SI_TIMER) &&
+			(info->si_sys_private);
+
 		__sigqueue_free(first);
 	} else {
 		/*
@@ -541,12 +548,12 @@ still_pending:
 }
 
 static int __dequeue_signal(struct sigpending *pending, sigset_t *mask,
-			siginfo_t *info)
+			siginfo_t *info, bool *resched_timer)
 {
 	int sig = next_signal(pending, mask);
 
 	if (sig)
-		collect_signal(sig, pending, info);
+		collect_signal(sig, pending, info, resched_timer);
 	return sig;
 }
 
@@ -558,15 +565,16 @@ static int __dequeue_signal(struct sigpe
  */
 int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
 {
+	bool resched_timer = false;
 	int signr;
 
 	/* We only dequeue private signals from ourselves, we don't let
 	 * signalfd steal them
 	 */
-	signr = __dequeue_signal(&tsk->pending, mask, info);
+	signr = __dequeue_signal(&tsk->pending, mask, info, &resched_timer);
 	if (!signr) {
 		signr = __dequeue_signal(&tsk->signal->shared_pending,
-					 mask, info);
+					 mask, info, &resched_timer);
 		/*
 		 * itimer signal ?
 		 *
@@ -611,7 +619,7 @@ int dequeue_signal(struct task_struct *t
 		 */
 		current->jobctl |= JOBCTL_STOP_DEQUEUED;
 	}
-	if ((info->si_code & __SI_MASK) == __SI_TIMER && info->si_sys_private) {
+	if (resched_timer) {
 		/*
 		 * Release the siglock to ensure proper locking order
 		 * of timer locks outside of siglocks.  Note, we leave
@@ -837,7 +845,7 @@ static bool prepare_signal(int sig, stru
 			 * will take ->siglock, notice SIGNAL_CLD_MASK, and
 			 * notify its parent. See get_signal_to_deliver().
 			 */
-			signal->flags = why | SIGNAL_STOP_CONTINUED;
+			signal_set_stop_flags(signal, why | SIGNAL_STOP_CONTINUED);
 			signal->group_stop_count = 0;
 			signal->group_exit_code = 0;
 		}
@@ -3226,10 +3234,17 @@ int compat_restore_altstack(const compat
 
 int __compat_save_altstack(compat_stack_t __user *uss, unsigned long sp)
 {
+	int err;
 	struct task_struct *t = current;
-	return  __put_user(ptr_to_compat((void __user *)t->sas_ss_sp), &uss->ss_sp) |
-		__put_user(sas_ss_flags(sp), &uss->ss_flags) |
+	err = __put_user(ptr_to_compat((void __user *)t->sas_ss_sp),
+			 &uss->ss_sp) |
+		__put_user(t->sas_ss_flags, &uss->ss_flags) |
 		__put_user(t->sas_ss_size, &uss->ss_size);
+	if (err)
+		return err;
+	if (t->sas_ss_flags & SS_AUTODISARM)
+		sas_ss_reset(t);
+	return 0;
 }
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/stacktrace.c linux-libre-4.9.52-gnu/kernel/stacktrace.c
--- linux-libre-4.9-gnu/kernel/stacktrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/stacktrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -18,10 +18,8 @@ void print_stack_trace(struct stack_trac
 	if (WARN_ON(!trace->entries))
 		return;
 
-	for (i = 0; i < trace->nr_entries; i++) {
-		printk("%*c", 1 + spaces, ' ');
-		print_ip_sym(trace->entries[i]);
-	}
+	for (i = 0; i < trace->nr_entries; i++)
+		printk("%*c%pS\n", 1 + spaces, ' ', (void *)trace->entries[i]);
 }
 EXPORT_SYMBOL_GPL(print_stack_trace);
 
@@ -29,7 +27,6 @@ int snprint_stack_trace(char *buf, size_
 			struct stack_trace *trace, int spaces)
 {
 	int i;
-	unsigned long ip;
 	int generated;
 	int total = 0;
 
@@ -37,9 +34,8 @@ int snprint_stack_trace(char *buf, size_
 		return 0;
 
 	for (i = 0; i < trace->nr_entries; i++) {
-		ip = trace->entries[i];
-		generated = snprintf(buf, size, "%*c[<%p>] %pS\n",
-				1 + spaces, ' ', (void *) ip, (void *) ip);
+		generated = snprintf(buf, size, "%*c%pS\n", 1 + spaces, ' ',
+				     (void *)trace->entries[i]);
 
 		total += generated;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/sysctl.c linux-libre-4.9.52-gnu/kernel/sysctl.c
--- linux-libre-4.9-gnu/kernel/sysctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/sysctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -2146,9 +2146,12 @@ static int do_proc_douintvec_conv(bool *
 	if (write) {
 		if (*negp)
 			return -EINVAL;
+		if (*lvalp > UINT_MAX)
+			return -EINVAL;
 		*valp = *lvalp;
 	} else {
 		unsigned int val = *valp;
+		*negp = false;
 		*lvalp = (unsigned long)val;
 	}
 	return 0;
@@ -2487,6 +2490,7 @@ static int __do_proc_doulongvec_minmax(v
 				break;
 			if (neg)
 				continue;
+			val = convmul * val / convdiv;
 			if ((min && val < *min) || (max && val > *max))
 				continue;
 			*i = val;
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/time/alarmtimer.c linux-libre-4.9.52-gnu/kernel/time/alarmtimer.c
--- linux-libre-4.9-gnu/kernel/time/alarmtimer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/time/alarmtimer.c	2017-09-27 08:40:05.000000000 -0400
@@ -354,7 +354,7 @@ void alarm_start_relative(struct alarm *
 {
 	struct alarm_base *base = &alarm_bases[alarm->type];
 
-	start = ktime_add(start, base->gettime());
+	start = ktime_add_safe(start, base->gettime());
 	alarm_start(alarm, start);
 }
 EXPORT_SYMBOL_GPL(alarm_start_relative);
@@ -440,7 +440,7 @@ u64 alarm_forward(struct alarm *alarm, k
 		overrun++;
 	}
 
-	alarm->node.expires = ktime_add(alarm->node.expires, interval);
+	alarm->node.expires = ktime_add_safe(alarm->node.expires, interval);
 	return overrun;
 }
 EXPORT_SYMBOL_GPL(alarm_forward);
@@ -624,13 +624,22 @@ static int alarm_timer_set(struct k_itim
 
 	/* start the timer */
 	timr->it.alarm.interval = timespec_to_ktime(new_setting->it_interval);
+
+	/*
+	 * Rate limit to the tick as a hot fix to prevent DOS. Will be
+	 * mopped up later.
+	 */
+	if (timr->it.alarm.interval.tv64 &&
+			ktime_to_ns(timr->it.alarm.interval) < TICK_NSEC)
+		timr->it.alarm.interval = ktime_set(0, TICK_NSEC);
+
 	exp = timespec_to_ktime(new_setting->it_value);
 	/* Convert (if necessary) to absolute time */
 	if (flags != TIMER_ABSTIME) {
 		ktime_t now;
 
 		now = alarm_bases[timr->it.alarm.alarmtimer.type].gettime();
-		exp = ktime_add(now, exp);
+		exp = ktime_add_safe(now, exp);
 	}
 
 	alarm_start(&timr->it.alarm.alarmtimer, exp);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/time/tick-broadcast.c linux-libre-4.9.52-gnu/kernel/time/tick-broadcast.c
--- linux-libre-4.9-gnu/kernel/time/tick-broadcast.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/time/tick-broadcast.c	2017-09-27 08:40:05.000000000 -0400
@@ -871,6 +871,9 @@ void tick_broadcast_setup_oneshot(struct
 {
 	int cpu = smp_processor_id();
 
+	if (!bc)
+		return;
+
 	/* Set it up only once ! */
 	if (bc->event_handler != tick_handle_oneshot_broadcast) {
 		int was_periodic = clockevent_state_periodic(bc);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/time/timekeeping.c linux-libre-4.9.52-gnu/kernel/time/timekeeping.c
--- linux-libre-4.9-gnu/kernel/time/timekeeping.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/time/timekeeping.c	2017-09-27 08:40:05.000000000 -0400
@@ -116,6 +116,26 @@ static inline void tk_update_sleep_time(
 	tk->offs_boot = ktime_add(tk->offs_boot, delta);
 }
 
+/*
+ * tk_clock_read - atomic clocksource read() helper
+ *
+ * This helper is necessary to use in the read paths because, while the
+ * seqlock ensures we don't return a bad value while structures are updated,
+ * it doesn't protect from potential crashes. There is the possibility that
+ * the tkr's clocksource may change between the read reference, and the
+ * clock reference passed to the read function.  This can cause crashes if
+ * the wrong clocksource is passed to the wrong read function.
+ * This isn't necessary to use when holding the timekeeper_lock or doing
+ * a read of the fast-timekeeper tkrs (which is protected by its own locking
+ * and update logic).
+ */
+static inline u64 tk_clock_read(struct tk_read_base *tkr)
+{
+	struct clocksource *clock = READ_ONCE(tkr->clock);
+
+	return clock->read(clock);
+}
+
 #ifdef CONFIG_DEBUG_TIMEKEEPING
 #define WARNING_FREQ (HZ*300) /* 5 minute rate-limiting */
 
@@ -173,7 +193,7 @@ static inline cycle_t timekeeping_get_de
 	 */
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
-		now = tkr->read(tkr->clock);
+		now = tk_clock_read(tkr);
 		last = tkr->cycle_last;
 		mask = tkr->mask;
 		max = tkr->clock->max_cycles;
@@ -207,7 +227,7 @@ static inline cycle_t timekeeping_get_de
 	cycle_t cycle_now, delta;
 
 	/* read clocksource */
-	cycle_now = tkr->read(tkr->clock);
+	cycle_now = tk_clock_read(tkr);
 
 	/* calculate the delta since the last update_wall_time */
 	delta = clocksource_delta(cycle_now, tkr->cycle_last, tkr->mask);
@@ -236,12 +256,10 @@ static void tk_setup_internals(struct ti
 	++tk->cs_was_changed_seq;
 	old_clock = tk->tkr_mono.clock;
 	tk->tkr_mono.clock = clock;
-	tk->tkr_mono.read = clock->read;
 	tk->tkr_mono.mask = clock->mask;
-	tk->tkr_mono.cycle_last = tk->tkr_mono.read(clock);
+	tk->tkr_mono.cycle_last = tk_clock_read(&tk->tkr_mono);
 
 	tk->tkr_raw.clock = clock;
-	tk->tkr_raw.read = clock->read;
 	tk->tkr_raw.mask = clock->mask;
 	tk->tkr_raw.cycle_last = tk->tkr_mono.cycle_last;
 
@@ -260,8 +278,7 @@ static void tk_setup_internals(struct ti
 	/* Go back from cycles -> shifted ns */
 	tk->xtime_interval = (u64) interval * clock->mult;
 	tk->xtime_remainder = ntpinterval - tk->xtime_interval;
-	tk->raw_interval =
-		((u64) interval * clock->mult) >> clock->shift;
+	tk->raw_interval = interval * clock->mult;
 
 	 /* if changing clocks, convert xtime_nsec shift units */
 	if (old_clock) {
@@ -299,10 +316,10 @@ u32 (*arch_gettimeoffset)(void) = defaul
 static inline u32 arch_gettimeoffset(void) { return 0; }
 #endif
 
-static inline s64 timekeeping_delta_to_ns(struct tk_read_base *tkr,
+static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr,
 					  cycle_t delta)
 {
-	s64 nsec;
+	u64 nsec;
 
 	nsec = delta * tkr->mult + tkr->xtime_nsec;
 	nsec >>= tkr->shift;
@@ -405,7 +422,7 @@ static __always_inline u64 __ktime_get_f
 
 		now += timekeeping_delta_to_ns(tkr,
 				clocksource_delta(
-					tkr->read(tkr->clock),
+					tk_clock_read(tkr),
 					tkr->cycle_last,
 					tkr->mask));
 	} while (read_seqcount_retry(&tkf->seq, seq));
@@ -433,6 +450,10 @@ static cycle_t dummy_clock_read(struct c
 	return cycles_at_suspend;
 }
 
+static struct clocksource dummy_clock = {
+	.read = dummy_clock_read,
+};
+
 /**
  * halt_fast_timekeeper - Prevent fast timekeeper from accessing clocksource.
  * @tk: Timekeeper to snapshot.
@@ -449,13 +470,13 @@ static void halt_fast_timekeeper(struct
 	struct tk_read_base *tkr = &tk->tkr_mono;
 
 	memcpy(&tkr_dummy, tkr, sizeof(tkr_dummy));
-	cycles_at_suspend = tkr->read(tkr->clock);
-	tkr_dummy.read = dummy_clock_read;
+	cycles_at_suspend = tk_clock_read(tkr);
+	tkr_dummy.clock = &dummy_clock;
 	update_fast_timekeeper(&tkr_dummy, &tk_fast_mono);
 
 	tkr = &tk->tkr_raw;
 	memcpy(&tkr_dummy, tkr, sizeof(tkr_dummy));
-	tkr_dummy.read = dummy_clock_read;
+	tkr_dummy.clock = &dummy_clock;
 	update_fast_timekeeper(&tkr_dummy, &tk_fast_raw);
 }
 
@@ -621,11 +642,10 @@ static void timekeeping_update(struct ti
  */
 static void timekeeping_forward_now(struct timekeeper *tk)
 {
-	struct clocksource *clock = tk->tkr_mono.clock;
 	cycle_t cycle_now, delta;
 	s64 nsec;
 
-	cycle_now = tk->tkr_mono.read(clock);
+	cycle_now = tk_clock_read(&tk->tkr_mono);
 	delta = clocksource_delta(cycle_now, tk->tkr_mono.cycle_last, tk->tkr_mono.mask);
 	tk->tkr_mono.cycle_last = cycle_now;
 	tk->tkr_raw.cycle_last  = cycle_now;
@@ -901,8 +921,7 @@ void ktime_get_snapshot(struct system_ti
 
 	do {
 		seq = read_seqcount_begin(&tk_core.seq);
-
-		now = tk->tkr_mono.read(tk->tkr_mono.clock);
+		now = tk_clock_read(&tk->tkr_mono);
 		systime_snapshot->cs_was_changed_seq = tk->cs_was_changed_seq;
 		systime_snapshot->clock_was_set_seq = tk->clock_was_set_seq;
 		base_real = ktime_add(tk->tkr_mono.base,
@@ -1081,7 +1100,7 @@ int get_device_system_crosststamp(int (*
 		 * Check whether the system counter value provided by the
 		 * device driver is on the current timekeeping interval.
 		 */
-		now = tk->tkr_mono.read(tk->tkr_mono.clock);
+		now = tk_clock_read(&tk->tkr_mono);
 		interval_start = tk->tkr_mono.cycle_last;
 		if (!cycle_between(interval_start, cycles, now)) {
 			clock_was_set_seq = tk->clock_was_set_seq;
@@ -1639,7 +1658,7 @@ void timekeeping_resume(void)
 	 * The less preferred source will only be tried if there is no better
 	 * usable source. The rtc part is handled separately in rtc core code.
 	 */
-	cycle_now = tk->tkr_mono.read(clock);
+	cycle_now = tk_clock_read(&tk->tkr_mono);
 	if ((clock->flags & CLOCK_SOURCE_SUSPEND_NONSTOP) &&
 		cycle_now > tk->tkr_mono.cycle_last) {
 		u64 num, max = ULLONG_MAX;
@@ -2003,7 +2022,7 @@ static cycle_t logarithmic_accumulation(
 						unsigned int *clock_set)
 {
 	cycle_t interval = tk->cycle_interval << shift;
-	u64 raw_nsecs;
+	u64 snsec_per_sec;
 
 	/* If the offset is smaller than a shifted interval, do nothing */
 	if (offset < interval)
@@ -2018,14 +2037,15 @@ static cycle_t logarithmic_accumulation(
 	*clock_set |= accumulate_nsecs_to_secs(tk);
 
 	/* Accumulate raw time */
-	raw_nsecs = (u64)tk->raw_interval << shift;
-	raw_nsecs += tk->raw_time.tv_nsec;
-	if (raw_nsecs >= NSEC_PER_SEC) {
-		u64 raw_secs = raw_nsecs;
-		raw_nsecs = do_div(raw_secs, NSEC_PER_SEC);
-		tk->raw_time.tv_sec += raw_secs;
+	tk->tkr_raw.xtime_nsec += (u64)tk->raw_time.tv_nsec << tk->tkr_raw.shift;
+	tk->tkr_raw.xtime_nsec += tk->raw_interval << shift;
+	snsec_per_sec = (u64)NSEC_PER_SEC << tk->tkr_raw.shift;
+	while (tk->tkr_raw.xtime_nsec >= snsec_per_sec) {
+		tk->tkr_raw.xtime_nsec -= snsec_per_sec;
+		tk->raw_time.tv_sec++;
 	}
-	tk->raw_time.tv_nsec = raw_nsecs;
+	tk->raw_time.tv_nsec = tk->tkr_raw.xtime_nsec >> tk->tkr_raw.shift;
+	tk->tkr_raw.xtime_nsec -= (u64)tk->raw_time.tv_nsec << tk->tkr_raw.shift;
 
 	/* Accumulate error between NTP and clock interval */
 	tk->ntp_error += tk->ntp_tick << shift;
@@ -2057,7 +2077,7 @@ void update_wall_time(void)
 #ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
 	offset = real_tk->cycle_interval;
 #else
-	offset = clocksource_delta(tk->tkr_mono.read(tk->tkr_mono.clock),
+	offset = clocksource_delta(tk_clock_read(&tk->tkr_mono),
 				   tk->tkr_mono.cycle_last, tk->tkr_mono.mask);
 #endif
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/time/timekeeping_debug.c linux-libre-4.9.52-gnu/kernel/time/timekeeping_debug.c
--- linux-libre-4.9-gnu/kernel/time/timekeeping_debug.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/time/timekeeping_debug.c	2017-09-27 08:40:05.000000000 -0400
@@ -75,7 +75,7 @@ void tk_debug_account_sleep_time(struct
 	int bin = min(fls(t->tv_sec), NUM_BINS-1);
 
 	sleep_time_bin[bin]++;
-	pr_info("Suspended for %lld.%03lu seconds\n", (s64)t->tv_sec,
-			t->tv_nsec / NSEC_PER_MSEC);
+	printk_deferred(KERN_INFO "Suspended for %lld.%03lu seconds\n",
+			(s64)t->tv_sec, t->tv_nsec / NSEC_PER_MSEC);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/time/timer.c linux-libre-4.9.52-gnu/kernel/time/timer.c
--- linux-libre-4.9-gnu/kernel/time/timer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/time/timer.c	2017-09-27 08:40:05.000000000 -0400
@@ -201,6 +201,7 @@ struct timer_base {
 	bool			migration_enabled;
 	bool			nohz_active;
 	bool			is_idle;
+	bool			must_forward_clk;
 	DECLARE_BITMAP(pending_map, WHEEL_SIZE);
 	struct hlist_head	vectors[WHEEL_SIZE];
 } ____cacheline_aligned;
@@ -891,13 +892,19 @@ get_target_base(struct timer_base *base,
 
 static inline void forward_timer_base(struct timer_base *base)
 {
-	unsigned long jnow = READ_ONCE(jiffies);
+	unsigned long jnow;
 
 	/*
-	 * We only forward the base when it's idle and we have a delta between
-	 * base clock and jiffies.
+	 * We only forward the base when we are idle or have just come out of
+	 * idle (must_forward_clk logic), and have a delta between base clock
+	 * and jiffies. In the common case, run_timers will take care of it.
 	 */
-	if (!base->is_idle || (long) (jnow - base->clk) < 2)
+	if (likely(!base->must_forward_clk))
+		return;
+
+	jnow = READ_ONCE(jiffies);
+	base->must_forward_clk = base->is_idle;
+	if ((long)(jnow - base->clk) < 2)
 		return;
 
 	/*
@@ -973,6 +980,11 @@ __mod_timer(struct timer_list *timer, un
 	 * same array bucket then just return:
 	 */
 	if (timer_pending(timer)) {
+		/*
+		 * The downside of this optimization is that it can result in
+		 * larger granularity than you would get from adding a new
+		 * timer with this expiry.
+		 */
 		if (timer->expires == expires)
 			return 1;
 
@@ -983,6 +995,7 @@ __mod_timer(struct timer_list *timer, un
 		 * dequeue/enqueue dance.
 		 */
 		base = lock_timer_base(timer, &flags);
+		forward_timer_base(base);
 
 		clk = base->clk;
 		idx = calc_wheel_index(expires, clk);
@@ -999,6 +1012,7 @@ __mod_timer(struct timer_list *timer, un
 		}
 	} else {
 		base = lock_timer_base(timer, &flags);
+		forward_timer_base(base);
 	}
 
 	timer_stats_timer_set_start_info(timer);
@@ -1028,12 +1042,10 @@ __mod_timer(struct timer_list *timer, un
 			spin_lock(&base->lock);
 			WRITE_ONCE(timer->flags,
 				   (timer->flags & ~TIMER_BASEMASK) | base->cpu);
+			forward_timer_base(base);
 		}
 	}
 
-	/* Try to forward a stale timer base clock */
-	forward_timer_base(base);
-
 	timer->expires = expires;
 	/*
 	 * If 'idx' was calculated above and the base time did not advance
@@ -1150,6 +1162,7 @@ void add_timer_on(struct timer_list *tim
 		WRITE_ONCE(timer->flags,
 			   (timer->flags & ~TIMER_BASEMASK) | cpu);
 	}
+	forward_timer_base(base);
 
 	debug_activate(timer, timer->expires);
 	internal_add_timer(base, timer);
@@ -1536,12 +1549,18 @@ u64 get_next_timer_interrupt(unsigned lo
 		base->is_idle = false;
 	} else {
 		if (!is_max_delta)
-			expires = basem + (nextevt - basej) * TICK_NSEC;
+			expires = basem + (u64)(nextevt - basej) * TICK_NSEC;
 		/*
-		 * If we expect to sleep more than a tick, mark the base idle:
+		 * If we expect to sleep more than a tick, mark the base idle.
+		 * Also the tick is stopped so any added timer must forward
+		 * the base clk itself to keep granularity small. This idle
+		 * logic is only maintained for the BASE_STD base, deferrable
+		 * timers may still see large granularity skew (by design).
 		 */
-		if ((expires - basem) > TICK_NSEC)
+		if ((expires - basem) > TICK_NSEC) {
+			base->must_forward_clk = true;
 			base->is_idle = true;
+		}
 	}
 	spin_unlock(&base->lock);
 
@@ -1651,6 +1670,19 @@ static __latent_entropy void run_timer_s
 {
 	struct timer_base *base = this_cpu_ptr(&timer_bases[BASE_STD]);
 
+	/*
+	 * must_forward_clk must be cleared before running timers so that any
+	 * timer functions that call mod_timer will not try to forward the
+	 * base. idle trcking / clock forwarding logic is only used with
+	 * BASE_STD timers.
+	 *
+	 * The deferrable base does not do idle tracking at all, so we do
+	 * not forward it. This can result in very large variations in
+	 * granularity for deferrable timers, but they can be deferred for
+	 * long periods due to idle.
+	 */
+	base->must_forward_clk = false;
+
 	__run_timers(base);
 	if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && base->nohz_active)
 		__run_timers(this_cpu_ptr(&timer_bases[BASE_DEF]));
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/bpf_trace.c linux-libre-4.9.52-gnu/kernel/trace/bpf_trace.c
--- linux-libre-4.9-gnu/kernel/trace/bpf_trace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/bpf_trace.c	2017-09-27 08:40:05.000000000 -0400
@@ -203,10 +203,36 @@ BPF_CALL_5(bpf_trace_printk, char *, fmt
 		fmt_cnt++;
 	}
 
-	return __trace_printk(1/* fake ip will not be printed */, fmt,
-			      mod[0] == 2 ? arg1 : mod[0] == 1 ? (long) arg1 : (u32) arg1,
-			      mod[1] == 2 ? arg2 : mod[1] == 1 ? (long) arg2 : (u32) arg2,
-			      mod[2] == 2 ? arg3 : mod[2] == 1 ? (long) arg3 : (u32) arg3);
+/* Horrid workaround for getting va_list handling working with different
+ * argument type combinations generically for 32 and 64 bit archs.
+ */
+#define __BPF_TP_EMIT()	__BPF_ARG3_TP()
+#define __BPF_TP(...)							\
+	__trace_printk(1 /* Fake ip will not be printed. */,		\
+		       fmt, ##__VA_ARGS__)
+
+#define __BPF_ARG1_TP(...)						\
+	((mod[0] == 2 || (mod[0] == 1 && __BITS_PER_LONG == 64))	\
+	  ? __BPF_TP(arg1, ##__VA_ARGS__)				\
+	  : ((mod[0] == 1 || (mod[0] == 0 && __BITS_PER_LONG == 32))	\
+	      ? __BPF_TP((long)arg1, ##__VA_ARGS__)			\
+	      : __BPF_TP((u32)arg1, ##__VA_ARGS__)))
+
+#define __BPF_ARG2_TP(...)						\
+	((mod[1] == 2 || (mod[1] == 1 && __BITS_PER_LONG == 64))	\
+	  ? __BPF_ARG1_TP(arg2, ##__VA_ARGS__)				\
+	  : ((mod[1] == 1 || (mod[1] == 0 && __BITS_PER_LONG == 32))	\
+	      ? __BPF_ARG1_TP((long)arg2, ##__VA_ARGS__)		\
+	      : __BPF_ARG1_TP((u32)arg2, ##__VA_ARGS__)))
+
+#define __BPF_ARG3_TP(...)						\
+	((mod[2] == 2 || (mod[2] == 1 && __BITS_PER_LONG == 64))	\
+	  ? __BPF_ARG2_TP(arg3, ##__VA_ARGS__)				\
+	  : ((mod[2] == 1 || (mod[2] == 0 && __BITS_PER_LONG == 32))	\
+	      ? __BPF_ARG2_TP((long)arg3, ##__VA_ARGS__)		\
+	      : __BPF_ARG2_TP((u32)arg3, ##__VA_ARGS__)))
+
+	return __BPF_TP_EMIT();
 }
 
 static const struct bpf_func_proto bpf_trace_printk_proto = {
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/ftrace.c linux-libre-4.9.52-gnu/kernel/trace/ftrace.c
--- linux-libre-4.9-gnu/kernel/trace/ftrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/ftrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -876,6 +876,10 @@ static int profile_graph_entry(struct ft
 
 	function_profile_call(trace->func, 0, NULL, NULL);
 
+	/* If function graph is shutting down, ret_stack can be NULL */
+	if (!current->ret_stack)
+		return 0;
+
 	if (index >= 0 && index < FTRACE_RETFUNC_DEPTH)
 		current->ret_stack[index].subtime = 0;
 
@@ -2743,13 +2747,14 @@ static int ftrace_shutdown(struct ftrace
 
 	if (!command || !ftrace_enabled) {
 		/*
-		 * If these are per_cpu ops, they still need their
-		 * per_cpu field freed. Since, function tracing is
+		 * If these are dynamic or per_cpu ops, they still
+		 * need their data freed. Since, function tracing is
 		 * not currently active, we can just free them
 		 * without synchronizing all CPUs.
 		 */
-		if (ops->flags & FTRACE_OPS_FL_PER_CPU)
-			per_cpu_ops_free(ops);
+		if (ops->flags & (FTRACE_OPS_FL_DYNAMIC | FTRACE_OPS_FL_PER_CPU))
+			goto free_ops;
+
 		return 0;
 	}
 
@@ -2804,6 +2809,7 @@ static int ftrace_shutdown(struct ftrace
 	if (ops->flags & (FTRACE_OPS_FL_DYNAMIC | FTRACE_OPS_FL_PER_CPU)) {
 		schedule_on_each_cpu(ftrace_sync);
 
+ free_ops:
 		arch_ftrace_trampoline_free(ops);
 
 		if (ops->flags & FTRACE_OPS_FL_PER_CPU)
@@ -3590,7 +3596,7 @@ match_records(struct ftrace_hash *hash,
 	int exclude_mod = 0;
 	int found = 0;
 	int ret;
-	int clear_filter;
+	int clear_filter = 0;
 
 	if (func) {
 		func_g.type = filter_parse_regex(func, len, &func_g.search,
@@ -3736,23 +3742,24 @@ static void __enable_ftrace_function_pro
 	ftrace_probe_registered = 1;
 }
 
-static void __disable_ftrace_function_probe(void)
+static bool __disable_ftrace_function_probe(void)
 {
 	int i;
 
 	if (!ftrace_probe_registered)
-		return;
+		return false;
 
 	for (i = 0; i < FTRACE_FUNC_HASHSIZE; i++) {
 		struct hlist_head *hhd = &ftrace_func_hash[i];
 		if (hhd->first)
-			return;
+			return false;
 	}
 
 	/* no more funcs left */
 	ftrace_shutdown(&trace_probe_ops, 0);
 
 	ftrace_probe_registered = 0;
+	return true;
 }
 
 
@@ -3882,6 +3889,7 @@ static void
 __unregister_ftrace_function_probe(char *glob, struct ftrace_probe_ops *ops,
 				  void *data, int flags)
 {
+	struct ftrace_ops_hash old_hash_ops;
 	struct ftrace_func_entry *rec_entry;
 	struct ftrace_func_probe *entry;
 	struct ftrace_func_probe *p;
@@ -3893,6 +3901,7 @@ __unregister_ftrace_function_probe(char
 	struct hlist_node *tmp;
 	char str[KSYM_SYMBOL_LEN];
 	int i, ret;
+	bool disabled;
 
 	if (glob && (strcmp(glob, "*") == 0 || !strlen(glob)))
 		func_g.search = NULL;
@@ -3911,6 +3920,10 @@ __unregister_ftrace_function_probe(char
 
 	mutex_lock(&trace_probe_ops.func_hash->regex_lock);
 
+	old_hash_ops.filter_hash = old_hash;
+	/* Probes only have filters */
+	old_hash_ops.notrace_hash = NULL;
+
 	hash = alloc_and_copy_ftrace_hash(FTRACE_HASH_DEFAULT_BITS, *orig_hash);
 	if (!hash)
 		/* Hmm, should report this somehow */
@@ -3948,12 +3961,17 @@ __unregister_ftrace_function_probe(char
 		}
 	}
 	mutex_lock(&ftrace_lock);
-	__disable_ftrace_function_probe();
+	disabled = __disable_ftrace_function_probe();
 	/*
 	 * Remove after the disable is called. Otherwise, if the last
 	 * probe is removed, a null hash means *all enabled*.
 	 */
 	ret = ftrace_hash_move(&trace_probe_ops, 1, orig_hash, hash);
+
+	/* still need to update the function call sites */
+	if (ftrace_enabled && !disabled)
+		ftrace_run_modify_code(&trace_probe_ops, FTRACE_UPDATE_CALLS,
+				       &old_hash_ops);
 	synchronize_sched();
 	if (!ret)
 		free_ftrace_hash_rcu(old_hash);
@@ -5389,6 +5407,15 @@ static void clear_ftrace_pids(struct tra
 	trace_free_pid_list(pid_list);
 }
 
+void ftrace_clear_pids(struct trace_array *tr)
+{
+	mutex_lock(&ftrace_lock);
+
+	clear_ftrace_pids(tr);
+
+	mutex_unlock(&ftrace_lock);
+}
+
 static void ftrace_pid_reset(struct trace_array *tr)
 {
 	mutex_lock(&ftrace_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/ring_buffer.c linux-libre-4.9.52-gnu/kernel/trace/ring_buffer.c
--- linux-libre-4.9-gnu/kernel/trace/ring_buffer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/ring_buffer.c	2017-09-27 08:40:05.000000000 -0400
@@ -3435,11 +3435,23 @@ EXPORT_SYMBOL_GPL(ring_buffer_iter_reset
 int ring_buffer_iter_empty(struct ring_buffer_iter *iter)
 {
 	struct ring_buffer_per_cpu *cpu_buffer;
+	struct buffer_page *reader;
+	struct buffer_page *head_page;
+	struct buffer_page *commit_page;
+	unsigned commit;
 
 	cpu_buffer = iter->cpu_buffer;
 
-	return iter->head_page == cpu_buffer->commit_page &&
-		iter->head == rb_commit_index(cpu_buffer);
+	/* Remember, trace recording is off when iterator is in use */
+	reader = cpu_buffer->reader_page;
+	head_page = cpu_buffer->head_page;
+	commit_page = cpu_buffer->commit_page;
+	commit = rb_page_commit(commit_page);
+
+	return ((iter->head_page == commit_page && iter->head == commit) ||
+		(iter->head_page == reader && commit_page == head_page &&
+		 head_page->read == commit &&
+		 iter->head == rb_page_commit(cpu_buffer->reader_page)));
 }
 EXPORT_SYMBOL_GPL(ring_buffer_iter_empty);
 
@@ -4870,9 +4882,9 @@ static __init int test_ringbuffer(void)
 		rb_data[cpu].cnt = cpu;
 		rb_threads[cpu] = kthread_create(rb_test, &rb_data[cpu],
 						 "rbtester/%d", cpu);
-		if (WARN_ON(!rb_threads[cpu])) {
+		if (WARN_ON(IS_ERR(rb_threads[cpu]))) {
 			pr_cont("FAILED\n");
-			ret = -1;
+			ret = PTR_ERR(rb_threads[cpu]);
 			goto out_free;
 		}
 
@@ -4882,9 +4894,9 @@ static __init int test_ringbuffer(void)
 
 	/* Now create the rb hammer! */
 	rb_hammer = kthread_run(rb_hammer_test, NULL, "rbhammer");
-	if (WARN_ON(!rb_hammer)) {
+	if (WARN_ON(IS_ERR(rb_hammer))) {
 		pr_cont("FAILED\n");
-		ret = -1;
+		ret = PTR_ERR(rb_hammer);
 		goto out_free;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/trace.c linux-libre-4.9.52-gnu/kernel/trace/trace.c
--- linux-libre-4.9-gnu/kernel/trace/trace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/trace.c	2017-09-27 08:40:05.000000000 -0400
@@ -1906,7 +1906,7 @@ tracing_generic_entry_update(struct trac
 #endif
 		((pc & NMI_MASK    ) ? TRACE_FLAG_NMI     : 0) |
 		((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 0) |
-		((pc & SOFTIRQ_MASK) ? TRACE_FLAG_SOFTIRQ : 0) |
+		((pc & SOFTIRQ_OFFSET) ? TRACE_FLAG_SOFTIRQ : 0) |
 		(tif_need_resched() ? TRACE_FLAG_NEED_RESCHED : 0) |
 		(test_preempt_need_resched() ? TRACE_FLAG_PREEMPT_RESCHED : 0);
 }
@@ -2369,11 +2369,17 @@ static char *get_trace_buf(void)
 	if (!buffer || buffer->nesting >= 4)
 		return NULL;
 
-	return &buffer->buffer[buffer->nesting++][0];
+	buffer->nesting++;
+
+	/* Interrupts must see nesting incremented before we use the buffer */
+	barrier();
+	return &buffer->buffer[buffer->nesting][0];
 }
 
 static void put_trace_buf(void)
 {
+	/* Don't let the decrement of nesting leak before this */
+	barrier();
 	this_cpu_dec(trace_percpu_buffer->nesting);
 }
 
@@ -5658,7 +5664,7 @@ static int tracing_set_clock(struct trac
 	tracing_reset_online_cpus(&tr->trace_buffer);
 
 #ifdef CONFIG_TRACER_MAX_TRACE
-	if (tr->flags & TRACE_ARRAY_FL_GLOBAL && tr->max_buffer.buffer)
+	if (tr->max_buffer.buffer)
 		ring_buffer_set_clock(tr->max_buffer.buffer, trace_clocks[i].func);
 	tracing_reset_online_cpus(&tr->max_buffer);
 #endif
@@ -6481,11 +6487,13 @@ ftrace_trace_snapshot_callback(struct ft
 		return ret;
 
  out_reg:
-	ret = register_ftrace_function_probe(glob, ops, count);
+	ret = alloc_snapshot(&global_trace);
+	if (ret < 0)
+		goto out;
 
-	if (ret >= 0)
-		alloc_snapshot(&global_trace);
+	ret = register_ftrace_function_probe(glob, ops, count);
 
+ out:
 	return ret < 0 ? ret : 0;
 }
 
@@ -7150,6 +7158,7 @@ static int instance_rmdir(const char *na
 
 	tracing_set_nop(tr);
 	event_trace_del_tracer(tr);
+	ftrace_clear_pids(tr);
 	ftrace_destroy_function_files(tr);
 	tracefs_remove_recursive(tr->dir);
 	free_trace_buffers(tr);
@@ -7159,6 +7168,7 @@ static int instance_rmdir(const char *na
 	}
 	kfree(tr->topts);
 
+	free_cpumask_var(tr->tracing_cpumask);
 	kfree(tr->name);
 	kfree(tr);
 
@@ -7241,7 +7251,7 @@ init_tracer_tracefs(struct trace_array *
 	ftrace_init_tracefs(tr, d_tracer);
 }
 
-static struct vfsmount *trace_automount(void *ingore)
+static struct vfsmount *trace_automount(struct dentry *mntpt, void *ingore)
 {
 	struct vfsmount *mnt;
 	struct file_system_type *type;
@@ -7254,7 +7264,7 @@ static struct vfsmount *trace_automount(
 	type = get_fs_type("tracefs");
 	if (!type)
 		return NULL;
-	mnt = vfs_kern_mount(type, 0, "tracefs", NULL);
+	mnt = vfs_submount(mntpt, type, "tracefs", NULL);
 	put_filesystem(type);
 	if (IS_ERR(mnt))
 		return NULL;
@@ -7763,4 +7773,4 @@ __init static int clear_boot_tracer(void
 }
 
 fs_initcall(tracer_init_tracefs);
-late_initcall(clear_boot_tracer);
+late_initcall_sync(clear_boot_tracer);
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/trace_events_filter.c linux-libre-4.9.52-gnu/kernel/trace/trace_events_filter.c
--- linux-libre-4.9-gnu/kernel/trace/trace_events_filter.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/trace_events_filter.c	2017-09-27 08:40:05.000000000 -0400
@@ -1926,6 +1926,10 @@ static int create_filter(struct trace_ev
 		if (err && set_str)
 			append_filter_err(ps, filter);
 	}
+	if (err && !set_str) {
+		free_event_filter(filter);
+		filter = NULL;
+	}
 	create_filter_finish(ps);
 
 	*filterp = filter;
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/trace_functions_graph.c linux-libre-4.9.52-gnu/kernel/trace/trace_functions_graph.c
--- linux-libre-4.9-gnu/kernel/trace/trace_functions_graph.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/trace_functions_graph.c	2017-09-27 08:40:05.000000000 -0400
@@ -842,6 +842,10 @@ print_graph_entry_leaf(struct trace_iter
 
 		cpu_data = per_cpu_ptr(data->cpu_data, cpu);
 
+		/* If a graph tracer ignored set_graph_notrace */
+		if (call->depth < -1)
+			call->depth += FTRACE_NOTRACE_DEPTH;
+
 		/*
 		 * Comments display at + 1 to depth. Since
 		 * this is a leaf function, keep the comments
@@ -850,7 +854,8 @@ print_graph_entry_leaf(struct trace_iter
 		cpu_data->depth = call->depth - 1;
 
 		/* No need to keep this function around for this depth */
-		if (call->depth < FTRACE_RETFUNC_DEPTH)
+		if (call->depth < FTRACE_RETFUNC_DEPTH &&
+		    !WARN_ON_ONCE(call->depth < 0))
 			cpu_data->enter_funcs[call->depth] = 0;
 	}
 
@@ -880,11 +885,16 @@ print_graph_entry_nested(struct trace_it
 		struct fgraph_cpu_data *cpu_data;
 		int cpu = iter->cpu;
 
+		/* If a graph tracer ignored set_graph_notrace */
+		if (call->depth < -1)
+			call->depth += FTRACE_NOTRACE_DEPTH;
+
 		cpu_data = per_cpu_ptr(data->cpu_data, cpu);
 		cpu_data->depth = call->depth;
 
 		/* Save this function pointer to see if the exit matches */
-		if (call->depth < FTRACE_RETFUNC_DEPTH)
+		if (call->depth < FTRACE_RETFUNC_DEPTH &&
+		    !WARN_ON_ONCE(call->depth < 0))
 			cpu_data->enter_funcs[call->depth] = call->func;
 	}
 
@@ -1114,7 +1124,8 @@ print_graph_return(struct ftrace_graph_r
 		 */
 		cpu_data->depth = trace->depth - 1;
 
-		if (trace->depth < FTRACE_RETFUNC_DEPTH) {
+		if (trace->depth < FTRACE_RETFUNC_DEPTH &&
+		    !WARN_ON_ONCE(trace->depth < 0)) {
 			if (cpu_data->enter_funcs[trace->depth] != trace->func)
 				func_match = 0;
 			cpu_data->enter_funcs[trace->depth] = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/trace.h linux-libre-4.9.52-gnu/kernel/trace/trace.h
--- linux-libre-4.9-gnu/kernel/trace/trace.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/trace.h	2017-09-27 08:40:05.000000000 -0400
@@ -870,6 +870,7 @@ int using_ftrace_ops_list_func(void);
 void ftrace_init_tracefs(struct trace_array *tr, struct dentry *d_tracer);
 void ftrace_init_tracefs_toplevel(struct trace_array *tr,
 				  struct dentry *d_tracer);
+void ftrace_clear_pids(struct trace_array *tr);
 #else
 static inline int ftrace_trace_task(struct trace_array *tr)
 {
@@ -888,6 +889,7 @@ ftrace_init_global_array_ops(struct trac
 static inline void ftrace_reset_array_ops(struct trace_array *tr) { }
 static inline void ftrace_init_tracefs(struct trace_array *tr, struct dentry *d) { }
 static inline void ftrace_init_tracefs_toplevel(struct trace_array *tr, struct dentry *d) { }
+static inline void ftrace_clear_pids(struct trace_array *tr) { }
 /* ftace_func_t type is not defined, use macro instead of static inline */
 #define ftrace_init_array_ops(tr, func) do { } while (0)
 #endif /* CONFIG_FUNCTION_TRACER */
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/trace_hwlat.c linux-libre-4.9.52-gnu/kernel/trace/trace_hwlat.c
--- linux-libre-4.9-gnu/kernel/trace/trace_hwlat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/trace_hwlat.c	2017-09-27 08:40:05.000000000 -0400
@@ -266,7 +266,7 @@ out:
 static struct cpumask save_cpumask;
 static bool disable_migrate;
 
-static void move_to_next_cpu(void)
+static void move_to_next_cpu(bool initmask)
 {
 	static struct cpumask *current_mask;
 	int next_cpu;
@@ -275,7 +275,7 @@ static void move_to_next_cpu(void)
 		return;
 
 	/* Just pick the first CPU on first iteration */
-	if (!current_mask) {
+	if (initmask) {
 		current_mask = &save_cpumask;
 		get_online_cpus();
 		cpumask_and(current_mask, cpu_online_mask, tracing_buffer_mask);
@@ -330,10 +330,12 @@ static void move_to_next_cpu(void)
 static int kthread_fn(void *data)
 {
 	u64 interval;
+	bool initmask = true;
 
 	while (!kthread_should_stop()) {
 
-		move_to_next_cpu();
+		move_to_next_cpu(initmask);
+		initmask = false;
 
 		local_irq_disable();
 		get_sample();
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/trace_kprobe.c linux-libre-4.9.52-gnu/kernel/trace/trace_kprobe.c
--- linux-libre-4.9-gnu/kernel/trace/trace_kprobe.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/trace_kprobe.c	2017-09-27 08:40:05.000000000 -0400
@@ -667,30 +667,25 @@ static int create_trace_kprobe(int argc,
 		pr_info("Probe point is not specified.\n");
 		return -EINVAL;
 	}
-	if (isdigit(argv[1][0])) {
-		if (is_return) {
-			pr_info("Return probe point must be a symbol.\n");
-			return -EINVAL;
-		}
-		/* an address specified */
-		ret = kstrtoul(&argv[1][0], 0, (unsigned long *)&addr);
-		if (ret) {
-			pr_info("Failed to parse address.\n");
-			return ret;
-		}
-	} else {
+
+	/* try to parse an address. if that fails, try to read the
+	 * input as a symbol. */
+	if (kstrtoul(argv[1], 0, (unsigned long *)&addr)) {
 		/* a symbol specified */
 		symbol = argv[1];
 		/* TODO: support .init module functions */
 		ret = traceprobe_split_symbol_offset(symbol, &offset);
 		if (ret) {
-			pr_info("Failed to parse symbol.\n");
+			pr_info("Failed to parse either an address or a symbol.\n");
 			return ret;
 		}
 		if (offset && is_return) {
 			pr_info("Return probe must be used without offset.\n");
 			return -EINVAL;
 		}
+	} else if (is_return) {
+		pr_info("Return probe point must be a symbol.\n");
+		return -EINVAL;
 	}
 	argc -= 2; argv += 2;
 
@@ -1484,6 +1479,11 @@ static __init int kprobe_trace_self_test
 
 end:
 	release_all_trace_kprobes();
+	/*
+	 * Wait for the optimizer work to finish. Otherwise it might fiddle
+	 * with probes in already freed __init text.
+	 */
+	wait_for_kprobe_optimizer();
 	if (warn)
 		pr_cont("NG: Some tests are failed. Please check them.\n");
 	else
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/trace_selftest.c linux-libre-4.9.52-gnu/kernel/trace/trace_selftest.c
--- linux-libre-4.9-gnu/kernel/trace/trace_selftest.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/trace_selftest.c	2017-09-27 08:40:05.000000000 -0400
@@ -272,7 +272,7 @@ static int trace_selftest_ops(struct tra
 		goto out_free;
 	if (cnt > 1) {
 		if (trace_selftest_test_global_cnt == 0)
-			goto out;
+			goto out_free;
 	}
 	if (trace_selftest_test_dyn_cnt == 0)
 		goto out_free;
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/trace/tracing_map.c linux-libre-4.9.52-gnu/kernel/trace/tracing_map.c
--- linux-libre-4.9-gnu/kernel/trace/tracing_map.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/trace/tracing_map.c	2017-09-27 08:40:05.000000000 -0400
@@ -221,16 +221,19 @@ void tracing_map_array_free(struct traci
 	if (!a)
 		return;
 
-	if (!a->pages) {
-		kfree(a);
-		return;
-	}
+	if (!a->pages)
+		goto free;
 
 	for (i = 0; i < a->n_pages; i++) {
 		if (!a->pages[i])
 			break;
 		free_page((unsigned long)a->pages[i]);
 	}
+
+	kfree(a->pages);
+
+ free:
+	kfree(a);
 }
 
 struct tracing_map_array *tracing_map_array_alloc(unsigned int n_elts,
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/ucount.c linux-libre-4.9.52-gnu/kernel/ucount.c
--- linux-libre-4.9-gnu/kernel/ucount.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/ucount.c	2017-09-27 08:40:05.000000000 -0400
@@ -128,10 +128,10 @@ static struct ucounts *get_ucounts(struc
 	struct hlist_head *hashent = ucounts_hashentry(ns, uid);
 	struct ucounts *ucounts, *new;
 
-	spin_lock(&ucounts_lock);
+	spin_lock_irq(&ucounts_lock);
 	ucounts = find_ucounts(ns, uid, hashent);
 	if (!ucounts) {
-		spin_unlock(&ucounts_lock);
+		spin_unlock_irq(&ucounts_lock);
 
 		new = kzalloc(sizeof(*new), GFP_KERNEL);
 		if (!new)
@@ -139,9 +139,9 @@ static struct ucounts *get_ucounts(struc
 
 		new->ns = ns;
 		new->uid = uid;
-		atomic_set(&new->count, 0);
+		new->count = 0;
 
-		spin_lock(&ucounts_lock);
+		spin_lock_irq(&ucounts_lock);
 		ucounts = find_ucounts(ns, uid, hashent);
 		if (ucounts) {
 			kfree(new);
@@ -150,21 +150,27 @@ static struct ucounts *get_ucounts(struc
 			ucounts = new;
 		}
 	}
-	if (!atomic_add_unless(&ucounts->count, 1, INT_MAX))
+	if (ucounts->count == INT_MAX)
 		ucounts = NULL;
-	spin_unlock(&ucounts_lock);
+	else
+		ucounts->count += 1;
+	spin_unlock_irq(&ucounts_lock);
 	return ucounts;
 }
 
 static void put_ucounts(struct ucounts *ucounts)
 {
-	if (atomic_dec_and_test(&ucounts->count)) {
-		spin_lock(&ucounts_lock);
+	unsigned long flags;
+
+	spin_lock_irqsave(&ucounts_lock, flags);
+	ucounts->count -= 1;
+	if (!ucounts->count)
 		hlist_del_init(&ucounts->node);
-		spin_unlock(&ucounts_lock);
+	else
+		ucounts = NULL;
+	spin_unlock_irqrestore(&ucounts_lock, flags);
 
-		kfree(ucounts);
-	}
+	kfree(ucounts);
 }
 
 static inline bool atomic_inc_below(atomic_t *v, int u)
@@ -225,11 +231,10 @@ static __init int user_namespace_sysctl_
 	 * properly.
 	 */
 	user_header = register_sysctl("user", empty);
+	kmemleak_ignore(user_header);
 	BUG_ON(!user_header);
 	BUG_ON(!setup_userns_sysctls(&init_user_ns));
 #endif
 	return 0;
 }
 subsys_initcall(user_namespace_sysctl_init);
-
-
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/watchdog.c linux-libre-4.9.52-gnu/kernel/watchdog.c
--- linux-libre-4.9-gnu/kernel/watchdog.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/watchdog.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,32 +24,14 @@
 
 #include <asm/irq_regs.h>
 #include <linux/kvm_para.h>
-#include <linux/perf_event.h>
 #include <linux/kthread.h>
 
-/*
- * The run state of the lockup detectors is controlled by the content of the
- * 'watchdog_enabled' variable. Each lockup detector has its dedicated bit -
- * bit 0 for the hard lockup detector and bit 1 for the soft lockup detector.
- *
- * 'watchdog_user_enabled', 'nmi_watchdog_enabled' and 'soft_watchdog_enabled'
- * are variables that are only used as an 'interface' between the parameters
- * in /proc/sys/kernel and the internal state bits in 'watchdog_enabled'. The
- * 'watchdog_thresh' variable is handled differently because its value is not
- * boolean, and the lockup detectors are 'suspended' while 'watchdog_thresh'
- * is equal zero.
- */
-#define NMI_WATCHDOG_ENABLED_BIT   0
-#define SOFT_WATCHDOG_ENABLED_BIT  1
-#define NMI_WATCHDOG_ENABLED      (1 << NMI_WATCHDOG_ENABLED_BIT)
-#define SOFT_WATCHDOG_ENABLED     (1 << SOFT_WATCHDOG_ENABLED_BIT)
-
 static DEFINE_MUTEX(watchdog_proc_mutex);
 
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-static unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED|NMI_WATCHDOG_ENABLED;
+#if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
+unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED|NMI_WATCHDOG_ENABLED;
 #else
-static unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED;
+unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED;
 #endif
 int __read_mostly nmi_watchdog_enabled;
 int __read_mostly soft_watchdog_enabled;
@@ -59,9 +41,6 @@ int __read_mostly watchdog_thresh = 10;
 #ifdef CONFIG_SMP
 int __read_mostly sysctl_softlockup_all_cpu_backtrace;
 int __read_mostly sysctl_hardlockup_all_cpu_backtrace;
-#else
-#define sysctl_softlockup_all_cpu_backtrace 0
-#define sysctl_hardlockup_all_cpu_backtrace 0
 #endif
 static struct cpumask watchdog_cpumask __read_mostly;
 unsigned long *watchdog_cpumask_bits = cpumask_bits(&watchdog_cpumask);
@@ -70,6 +49,8 @@ unsigned long *watchdog_cpumask_bits = c
 #define for_each_watchdog_cpu(cpu) \
 	for_each_cpu_and((cpu), cpu_online_mask, &watchdog_cpumask)
 
+atomic_t watchdog_park_in_progress = ATOMIC_INIT(0);
+
 /*
  * The 'watchdog_running' variable is set to 1 when the watchdog threads
  * are registered/started and is set to 0 when the watchdog threads are
@@ -100,50 +81,9 @@ static DEFINE_PER_CPU(bool, soft_watchdo
 static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts);
 static DEFINE_PER_CPU(unsigned long, soft_lockup_hrtimer_cnt);
 static DEFINE_PER_CPU(struct task_struct *, softlockup_task_ptr_saved);
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-static DEFINE_PER_CPU(bool, hard_watchdog_warn);
-static DEFINE_PER_CPU(bool, watchdog_nmi_touch);
 static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved);
-static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);
-#endif
 static unsigned long soft_lockup_nmi_warn;
 
-/* boot commands */
-/*
- * Should we panic when a soft-lockup or hard-lockup occurs:
- */
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-unsigned int __read_mostly hardlockup_panic =
-			CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE;
-static unsigned long hardlockup_allcpu_dumped;
-/*
- * We may not want to enable hard lockup detection by default in all cases,
- * for example when running the kernel as a guest on a hypervisor. In these
- * cases this function can be called to disable hard lockup detection. This
- * function should only be executed once by the boot processor before the
- * kernel command line parameters are parsed, because otherwise it is not
- * possible to override this in hardlockup_panic_setup().
- */
-void hardlockup_detector_disable(void)
-{
-	watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
-}
-
-static int __init hardlockup_panic_setup(char *str)
-{
-	if (!strncmp(str, "panic", 5))
-		hardlockup_panic = 1;
-	else if (!strncmp(str, "nopanic", 7))
-		hardlockup_panic = 0;
-	else if (!strncmp(str, "0", 1))
-		watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
-	else if (!strncmp(str, "1", 1))
-		watchdog_enabled |= NMI_WATCHDOG_ENABLED;
-	return 1;
-}
-__setup("nmi_watchdog=", hardlockup_panic_setup);
-#endif
-
 unsigned int __read_mostly softlockup_panic =
 			CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE;
 
@@ -264,32 +204,14 @@ void touch_all_softlockup_watchdogs(void
 	wq_watchdog_touch(-1);
 }
 
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-void touch_nmi_watchdog(void)
-{
-	/*
-	 * Using __raw here because some code paths have
-	 * preemption enabled.  If preemption is enabled
-	 * then interrupts should be enabled too, in which
-	 * case we shouldn't have to worry about the watchdog
-	 * going off.
-	 */
-	raw_cpu_write(watchdog_nmi_touch, true);
-	touch_softlockup_watchdog();
-}
-EXPORT_SYMBOL(touch_nmi_watchdog);
-
-#endif
-
 void touch_softlockup_watchdog_sync(void)
 {
 	__this_cpu_write(softlockup_touch_sync, true);
 	__this_cpu_write(watchdog_touch_ts, 0);
 }
 
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
 /* watchdog detector functions */
-static bool is_hardlockup(void)
+bool is_hardlockup(void)
 {
 	unsigned long hrint = __this_cpu_read(hrtimer_interrupts);
 
@@ -299,7 +221,6 @@ static bool is_hardlockup(void)
 	__this_cpu_write(hrtimer_interrupts_saved, hrint);
 	return false;
 }
-#endif
 
 static int is_softlockup(unsigned long touch_ts)
 {
@@ -313,78 +234,22 @@ static int is_softlockup(unsigned long t
 	return 0;
 }
 
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-
-static struct perf_event_attr wd_hw_attr = {
-	.type		= PERF_TYPE_HARDWARE,
-	.config		= PERF_COUNT_HW_CPU_CYCLES,
-	.size		= sizeof(struct perf_event_attr),
-	.pinned		= 1,
-	.disabled	= 1,
-};
-
-/* Callback function for perf event subsystem */
-static void watchdog_overflow_callback(struct perf_event *event,
-		 struct perf_sample_data *data,
-		 struct pt_regs *regs)
-{
-	/* Ensure the watchdog never gets throttled */
-	event->hw.interrupts = 0;
-
-	if (__this_cpu_read(watchdog_nmi_touch) == true) {
-		__this_cpu_write(watchdog_nmi_touch, false);
-		return;
-	}
-
-	/* check for a hardlockup
-	 * This is done by making sure our timer interrupt
-	 * is incrementing.  The timer interrupt should have
-	 * fired multiple times before we overflow'd.  If it hasn't
-	 * then this is a good indication the cpu is stuck
-	 */
-	if (is_hardlockup()) {
-		int this_cpu = smp_processor_id();
-		struct pt_regs *regs = get_irq_regs();
-
-		/* only print hardlockups once */
-		if (__this_cpu_read(hard_watchdog_warn) == true)
-			return;
-
-		pr_emerg("Watchdog detected hard LOCKUP on cpu %d", this_cpu);
-		print_modules();
-		print_irqtrace_events(current);
-		if (regs)
-			show_regs(regs);
-		else
-			dump_stack();
-
-		/*
-		 * Perform all-CPU dump only once to avoid multiple hardlockups
-		 * generating interleaving traces
-		 */
-		if (sysctl_hardlockup_all_cpu_backtrace &&
-				!test_and_set_bit(0, &hardlockup_allcpu_dumped))
-			trigger_allbutself_cpu_backtrace();
-
-		if (hardlockup_panic)
-			nmi_panic(regs, "Hard LOCKUP");
-
-		__this_cpu_write(hard_watchdog_warn, true);
-		return;
-	}
-
-	__this_cpu_write(hard_watchdog_warn, false);
-	return;
-}
-#endif /* CONFIG_HARDLOCKUP_DETECTOR */
-
 static void watchdog_interrupt_count(void)
 {
 	__this_cpu_inc(hrtimer_interrupts);
 }
 
-static int watchdog_nmi_enable(unsigned int cpu);
-static void watchdog_nmi_disable(unsigned int cpu);
+/*
+ * These two functions are mostly architecture specific
+ * defining them as weak here.
+ */
+int __weak watchdog_nmi_enable(unsigned int cpu)
+{
+	return 0;
+}
+void __weak watchdog_nmi_disable(unsigned int cpu)
+{
+}
 
 static int watchdog_enable_all_cpus(void);
 static void watchdog_disable_all_cpus(void);
@@ -397,6 +262,9 @@ static enum hrtimer_restart watchdog_tim
 	int duration;
 	int softlockup_all_cpu_backtrace = sysctl_softlockup_all_cpu_backtrace;
 
+	if (atomic_read(&watchdog_park_in_progress) != 0)
+		return HRTIMER_NORESTART;
+
 	/* kick the hardlockup detector */
 	watchdog_interrupt_count();
 
@@ -577,109 +445,6 @@ static void watchdog(unsigned int cpu)
 		watchdog_nmi_disable(cpu);
 }
 
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-/*
- * People like the simple clean cpu node info on boot.
- * Reduce the watchdog noise by only printing messages
- * that are different from what cpu0 displayed.
- */
-static unsigned long cpu0_err;
-
-static int watchdog_nmi_enable(unsigned int cpu)
-{
-	struct perf_event_attr *wd_attr;
-	struct perf_event *event = per_cpu(watchdog_ev, cpu);
-
-	/* nothing to do if the hard lockup detector is disabled */
-	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
-		goto out;
-
-	/* is it already setup and enabled? */
-	if (event && event->state > PERF_EVENT_STATE_OFF)
-		goto out;
-
-	/* it is setup but not enabled */
-	if (event != NULL)
-		goto out_enable;
-
-	wd_attr = &wd_hw_attr;
-	wd_attr->sample_period = hw_nmi_get_sample_period(watchdog_thresh);
-
-	/* Try to register using hardware perf events */
-	event = perf_event_create_kernel_counter(wd_attr, cpu, NULL, watchdog_overflow_callback, NULL);
-
-	/* save cpu0 error for future comparision */
-	if (cpu == 0 && IS_ERR(event))
-		cpu0_err = PTR_ERR(event);
-
-	if (!IS_ERR(event)) {
-		/* only print for cpu0 or different than cpu0 */
-		if (cpu == 0 || cpu0_err)
-			pr_info("enabled on all CPUs, permanently consumes one hw-PMU counter.\n");
-		goto out_save;
-	}
-
-	/*
-	 * Disable the hard lockup detector if _any_ CPU fails to set up
-	 * set up the hardware perf event. The watchdog() function checks
-	 * the NMI_WATCHDOG_ENABLED bit periodically.
-	 *
-	 * The barriers are for syncing up watchdog_enabled across all the
-	 * cpus, as clear_bit() does not use barriers.
-	 */
-	smp_mb__before_atomic();
-	clear_bit(NMI_WATCHDOG_ENABLED_BIT, &watchdog_enabled);
-	smp_mb__after_atomic();
-
-	/* skip displaying the same error again */
-	if (cpu > 0 && (PTR_ERR(event) == cpu0_err))
-		return PTR_ERR(event);
-
-	/* vary the KERN level based on the returned errno */
-	if (PTR_ERR(event) == -EOPNOTSUPP)
-		pr_info("disabled (cpu%i): not supported (no LAPIC?)\n", cpu);
-	else if (PTR_ERR(event) == -ENOENT)
-		pr_warn("disabled (cpu%i): hardware events not enabled\n",
-			 cpu);
-	else
-		pr_err("disabled (cpu%i): unable to create perf event: %ld\n",
-			cpu, PTR_ERR(event));
-
-	pr_info("Shutting down hard lockup detector on all cpus\n");
-
-	return PTR_ERR(event);
-
-	/* success path */
-out_save:
-	per_cpu(watchdog_ev, cpu) = event;
-out_enable:
-	perf_event_enable(per_cpu(watchdog_ev, cpu));
-out:
-	return 0;
-}
-
-static void watchdog_nmi_disable(unsigned int cpu)
-{
-	struct perf_event *event = per_cpu(watchdog_ev, cpu);
-
-	if (event) {
-		perf_event_disable(event);
-		per_cpu(watchdog_ev, cpu) = NULL;
-
-		/* should be in cleanup, but blocks oprofile */
-		perf_event_release_kernel(event);
-	}
-	if (cpu == 0) {
-		/* watchdog_nmi_enable() expects this to be zero initially. */
-		cpu0_err = 0;
-	}
-}
-
-#else
-static int watchdog_nmi_enable(unsigned int cpu) { return 0; }
-static void watchdog_nmi_disable(unsigned int cpu) { return; }
-#endif /* CONFIG_HARDLOCKUP_DETECTOR */
-
 static struct smp_hotplug_thread watchdog_threads = {
 	.store			= &softlockup_watchdog,
 	.thread_should_run	= watchdog_should_run,
@@ -707,12 +472,16 @@ static int watchdog_park_threads(void)
 {
 	int cpu, ret = 0;
 
+	atomic_set(&watchdog_park_in_progress, 1);
+
 	for_each_watchdog_cpu(cpu) {
 		ret = kthread_park(per_cpu(softlockup_watchdog, cpu));
 		if (ret)
 			break;
 	}
 
+	atomic_set(&watchdog_park_in_progress, 0);
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/watchdog_hld.c linux-libre-4.9.52-gnu/kernel/watchdog_hld.c
--- linux-libre-4.9-gnu/kernel/watchdog_hld.c	1969-12-31 19:00:00.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/watchdog_hld.c	2017-09-27 08:40:05.000000000 -0400
@@ -0,0 +1,230 @@
+/*
+ * Detect hard lockups on a system
+ *
+ * started by Don Zickus, Copyright (C) 2010 Red Hat, Inc.
+ *
+ * Note: Most of this code is borrowed heavily from the original softlockup
+ * detector, so thanks to Ingo for the initial implementation.
+ * Some chunks also taken from the old x86-specific nmi watchdog code, thanks
+ * to those contributors as well.
+ */
+
+#define pr_fmt(fmt) "NMI watchdog: " fmt
+
+#include <linux/nmi.h>
+#include <linux/module.h>
+#include <asm/irq_regs.h>
+#include <linux/perf_event.h>
+
+static DEFINE_PER_CPU(bool, hard_watchdog_warn);
+static DEFINE_PER_CPU(bool, watchdog_nmi_touch);
+static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);
+
+/* boot commands */
+/*
+ * Should we panic when a soft-lockup or hard-lockup occurs:
+ */
+unsigned int __read_mostly hardlockup_panic =
+			CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE;
+static unsigned long hardlockup_allcpu_dumped;
+/*
+ * We may not want to enable hard lockup detection by default in all cases,
+ * for example when running the kernel as a guest on a hypervisor. In these
+ * cases this function can be called to disable hard lockup detection. This
+ * function should only be executed once by the boot processor before the
+ * kernel command line parameters are parsed, because otherwise it is not
+ * possible to override this in hardlockup_panic_setup().
+ */
+void hardlockup_detector_disable(void)
+{
+	watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
+}
+
+static int __init hardlockup_panic_setup(char *str)
+{
+	if (!strncmp(str, "panic", 5))
+		hardlockup_panic = 1;
+	else if (!strncmp(str, "nopanic", 7))
+		hardlockup_panic = 0;
+	else if (!strncmp(str, "0", 1))
+		watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
+	else if (!strncmp(str, "1", 1))
+		watchdog_enabled |= NMI_WATCHDOG_ENABLED;
+	return 1;
+}
+__setup("nmi_watchdog=", hardlockup_panic_setup);
+
+void touch_nmi_watchdog(void)
+{
+	/*
+	 * Using __raw here because some code paths have
+	 * preemption enabled.  If preemption is enabled
+	 * then interrupts should be enabled too, in which
+	 * case we shouldn't have to worry about the watchdog
+	 * going off.
+	 */
+	raw_cpu_write(watchdog_nmi_touch, true);
+	touch_softlockup_watchdog();
+}
+EXPORT_SYMBOL(touch_nmi_watchdog);
+
+static struct perf_event_attr wd_hw_attr = {
+	.type		= PERF_TYPE_HARDWARE,
+	.config		= PERF_COUNT_HW_CPU_CYCLES,
+	.size		= sizeof(struct perf_event_attr),
+	.pinned		= 1,
+	.disabled	= 1,
+};
+
+/* Callback function for perf event subsystem */
+static void watchdog_overflow_callback(struct perf_event *event,
+		 struct perf_sample_data *data,
+		 struct pt_regs *regs)
+{
+	/* Ensure the watchdog never gets throttled */
+	event->hw.interrupts = 0;
+
+	if (atomic_read(&watchdog_park_in_progress) != 0)
+		return;
+
+	if (__this_cpu_read(watchdog_nmi_touch) == true) {
+		__this_cpu_write(watchdog_nmi_touch, false);
+		return;
+	}
+
+	/* check for a hardlockup
+	 * This is done by making sure our timer interrupt
+	 * is incrementing.  The timer interrupt should have
+	 * fired multiple times before we overflow'd.  If it hasn't
+	 * then this is a good indication the cpu is stuck
+	 */
+	if (is_hardlockup()) {
+		int this_cpu = smp_processor_id();
+
+		/* only print hardlockups once */
+		if (__this_cpu_read(hard_watchdog_warn) == true)
+			return;
+
+		pr_emerg("Watchdog detected hard LOCKUP on cpu %d", this_cpu);
+		print_modules();
+		print_irqtrace_events(current);
+		if (regs)
+			show_regs(regs);
+		else
+			dump_stack();
+
+		/*
+		 * Perform all-CPU dump only once to avoid multiple hardlockups
+		 * generating interleaving traces
+		 */
+		if (sysctl_hardlockup_all_cpu_backtrace &&
+				!test_and_set_bit(0, &hardlockup_allcpu_dumped))
+			trigger_allbutself_cpu_backtrace();
+
+		if (hardlockup_panic)
+			nmi_panic(regs, "Hard LOCKUP");
+
+		__this_cpu_write(hard_watchdog_warn, true);
+		return;
+	}
+
+	__this_cpu_write(hard_watchdog_warn, false);
+	return;
+}
+
+/*
+ * People like the simple clean cpu node info on boot.
+ * Reduce the watchdog noise by only printing messages
+ * that are different from what cpu0 displayed.
+ */
+static unsigned long cpu0_err;
+
+int watchdog_nmi_enable(unsigned int cpu)
+{
+	struct perf_event_attr *wd_attr;
+	struct perf_event *event = per_cpu(watchdog_ev, cpu);
+
+	/* nothing to do if the hard lockup detector is disabled */
+	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
+		goto out;
+
+	/* is it already setup and enabled? */
+	if (event && event->state > PERF_EVENT_STATE_OFF)
+		goto out;
+
+	/* it is setup but not enabled */
+	if (event != NULL)
+		goto out_enable;
+
+	wd_attr = &wd_hw_attr;
+	wd_attr->sample_period = hw_nmi_get_sample_period(watchdog_thresh);
+
+	/* Try to register using hardware perf events */
+	event = perf_event_create_kernel_counter(wd_attr, cpu, NULL, watchdog_overflow_callback, NULL);
+
+	/* save cpu0 error for future comparision */
+	if (cpu == 0 && IS_ERR(event))
+		cpu0_err = PTR_ERR(event);
+
+	if (!IS_ERR(event)) {
+		/* only print for cpu0 or different than cpu0 */
+		if (cpu == 0 || cpu0_err)
+			pr_info("enabled on all CPUs, permanently consumes one hw-PMU counter.\n");
+		goto out_save;
+	}
+
+	/*
+	 * Disable the hard lockup detector if _any_ CPU fails to set up
+	 * set up the hardware perf event. The watchdog() function checks
+	 * the NMI_WATCHDOG_ENABLED bit periodically.
+	 *
+	 * The barriers are for syncing up watchdog_enabled across all the
+	 * cpus, as clear_bit() does not use barriers.
+	 */
+	smp_mb__before_atomic();
+	clear_bit(NMI_WATCHDOG_ENABLED_BIT, &watchdog_enabled);
+	smp_mb__after_atomic();
+
+	/* skip displaying the same error again */
+	if (cpu > 0 && (PTR_ERR(event) == cpu0_err))
+		return PTR_ERR(event);
+
+	/* vary the KERN level based on the returned errno */
+	if (PTR_ERR(event) == -EOPNOTSUPP)
+		pr_info("disabled (cpu%i): not supported (no LAPIC?)\n", cpu);
+	else if (PTR_ERR(event) == -ENOENT)
+		pr_warn("disabled (cpu%i): hardware events not enabled\n",
+			 cpu);
+	else
+		pr_err("disabled (cpu%i): unable to create perf event: %ld\n",
+			cpu, PTR_ERR(event));
+
+	pr_info("Shutting down hard lockup detector on all cpus\n");
+
+	return PTR_ERR(event);
+
+	/* success path */
+out_save:
+	per_cpu(watchdog_ev, cpu) = event;
+out_enable:
+	perf_event_enable(per_cpu(watchdog_ev, cpu));
+out:
+	return 0;
+}
+
+void watchdog_nmi_disable(unsigned int cpu)
+{
+	struct perf_event *event = per_cpu(watchdog_ev, cpu);
+
+	if (event) {
+		perf_event_disable(event);
+		per_cpu(watchdog_ev, cpu) = NULL;
+
+		/* should be in cleanup, but blocks oprofile */
+		perf_event_release_kernel(event);
+	}
+	if (cpu == 0) {
+		/* watchdog_nmi_enable() expects this to be zero initially. */
+		cpu0_err = 0;
+	}
+}
diff -druNp --no-dereference linux-libre-4.9-gnu/kernel/workqueue.c linux-libre-4.9.52-gnu/kernel/workqueue.c
--- linux-libre-4.9-gnu/kernel/workqueue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/kernel/workqueue.c	2017-09-27 08:40:05.000000000 -0400
@@ -3730,8 +3730,12 @@ static int apply_workqueue_attrs_locked(
 		return -EINVAL;
 
 	/* creating multiple pwqs breaks ordering guarantee */
-	if (WARN_ON((wq->flags & __WQ_ORDERED) && !list_empty(&wq->pwqs)))
-		return -EINVAL;
+	if (!list_empty(&wq->pwqs)) {
+		if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT))
+			return -EINVAL;
+
+		wq->flags &= ~__WQ_ORDERED;
+	}
 
 	ctx = apply_wqattrs_prepare(wq, attrs);
 	if (!ctx)
@@ -3915,6 +3919,16 @@ struct workqueue_struct *__alloc_workque
 	struct workqueue_struct *wq;
 	struct pool_workqueue *pwq;
 
+	/*
+	 * Unbound && max_active == 1 used to imply ordered, which is no
+	 * longer the case on NUMA machines due to per-node pools.  While
+	 * alloc_ordered_workqueue() is the right way to create an ordered
+	 * workqueue, keep the previous behavior to avoid subtle breakages
+	 * on NUMA.
+	 */
+	if ((flags & WQ_UNBOUND) && max_active == 1)
+		flags |= __WQ_ORDERED;
+
 	/* see the comment above the definition of WQ_POWER_EFFICIENT */
 	if ((flags & WQ_POWER_EFFICIENT) && wq_power_efficient)
 		flags |= WQ_UNBOUND;
@@ -4103,13 +4117,14 @@ void workqueue_set_max_active(struct wor
 	struct pool_workqueue *pwq;
 
 	/* disallow meddling with max_active for ordered workqueues */
-	if (WARN_ON(wq->flags & __WQ_ORDERED))
+	if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT))
 		return;
 
 	max_active = wq_clamp_max_active(max_active, wq->flags, wq->name);
 
 	mutex_lock(&wq->mutex);
 
+	wq->flags &= ~__WQ_ORDERED;
 	wq->saved_max_active = max_active;
 
 	for_each_pwq(pwq, wq)
@@ -5214,7 +5229,7 @@ int workqueue_sysfs_register(struct work
 	 * attributes breaks ordering guarantee.  Disallow exposing ordered
 	 * workqueues.
 	 */
-	if (WARN_ON(wq->flags & __WQ_ORDERED))
+	if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT))
 		return -EINVAL;
 
 	wq->wq_dev = wq_dev = kzalloc(sizeof(*wq_dev), GFP_KERNEL);
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/cmdline.c linux-libre-4.9.52-gnu/lib/cmdline.c
--- linux-libre-4.9-gnu/lib/cmdline.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/cmdline.c	2017-09-27 08:40:05.000000000 -0400
@@ -22,14 +22,14 @@
  *	the values[M, M+1, ..., N] into the ints array in get_options.
  */
 
-static int get_range(char **str, int *pint)
+static int get_range(char **str, int *pint, int n)
 {
 	int x, inc_counter, upper_range;
 
 	(*str)++;
 	upper_range = simple_strtol((*str), NULL, 0);
 	inc_counter = upper_range - *pint;
-	for (x = *pint; x < upper_range; x++)
+	for (x = *pint; n && x < upper_range; x++, n--)
 		*pint++ = x;
 	return inc_counter;
 }
@@ -96,7 +96,7 @@ char *get_options(const char *str, int n
 			break;
 		if (res == 3) {
 			int range_nums;
-			range_nums = get_range((char **)&str, ints + i);
+			range_nums = get_range((char **)&str, ints + i, nints - i);
 			if (range_nums < 0)
 				break;
 			/*
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/cpumask.c linux-libre-4.9.52-gnu/lib/cpumask.c
--- linux-libre-4.9-gnu/lib/cpumask.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/cpumask.c	2017-09-27 08:40:05.000000000 -0400
@@ -43,6 +43,38 @@ int cpumask_any_but(const struct cpumask
 }
 EXPORT_SYMBOL(cpumask_any_but);
 
+/**
+ * cpumask_next_wrap - helper to implement for_each_cpu_wrap
+ * @n: the cpu prior to the place to search
+ * @mask: the cpumask pointer
+ * @start: the start point of the iteration
+ * @wrap: assume @n crossing @start terminates the iteration
+ *
+ * Returns >= nr_cpu_ids on completion
+ *
+ * Note: the @wrap argument is required for the start condition when
+ * we cannot assume @start is set in @mask.
+ */
+int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool wrap)
+{
+	int next;
+
+again:
+	next = cpumask_next(n, mask);
+
+	if (wrap && n < start && next >= start) {
+		return nr_cpumask_bits;
+
+	} else if (next >= nr_cpumask_bits) {
+		wrap = true;
+		n = -1;
+		goto again;
+	}
+
+	return next;
+}
+EXPORT_SYMBOL(cpumask_next_wrap);
+
 /* These are not inline because of header tangles. */
 #ifdef CONFIG_CPUMASK_OFFSTACK
 /**
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/iov_iter.c linux-libre-4.9.52-gnu/lib/iov_iter.c
--- linux-libre-4.9-gnu/lib/iov_iter.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/iov_iter.c	2017-09-27 08:40:05.000000000 -0400
@@ -678,43 +678,50 @@ size_t iov_iter_copy_from_user_atomic(st
 }
 EXPORT_SYMBOL(iov_iter_copy_from_user_atomic);
 
+static inline void pipe_truncate(struct iov_iter *i)
+{
+	struct pipe_inode_info *pipe = i->pipe;
+	if (pipe->nrbufs) {
+		size_t off = i->iov_offset;
+		int idx = i->idx;
+		int nrbufs = (idx - pipe->curbuf) & (pipe->buffers - 1);
+		if (off) {
+			pipe->bufs[idx].len = off - pipe->bufs[idx].offset;
+			idx = next_idx(idx, pipe);
+			nrbufs++;
+		}
+		while (pipe->nrbufs > nrbufs) {
+			pipe_buf_release(pipe, &pipe->bufs[idx]);
+			idx = next_idx(idx, pipe);
+			pipe->nrbufs--;
+		}
+	}
+}
+
 static void pipe_advance(struct iov_iter *i, size_t size)
 {
 	struct pipe_inode_info *pipe = i->pipe;
-	struct pipe_buffer *buf;
-	int idx = i->idx;
-	size_t off = i->iov_offset, orig_sz;
-	
 	if (unlikely(i->count < size))
 		size = i->count;
-	orig_sz = size;
-
 	if (size) {
+		struct pipe_buffer *buf;
+		size_t off = i->iov_offset, left = size;
+		int idx = i->idx;
 		if (off) /* make it relative to the beginning of buffer */
-			size += off - pipe->bufs[idx].offset;
+			left += off - pipe->bufs[idx].offset;
 		while (1) {
 			buf = &pipe->bufs[idx];
-			if (size <= buf->len)
+			if (left <= buf->len)
 				break;
-			size -= buf->len;
+			left -= buf->len;
 			idx = next_idx(idx, pipe);
 		}
-		buf->len = size;
 		i->idx = idx;
-		off = i->iov_offset = buf->offset + size;
-	}
-	if (off)
-		idx = next_idx(idx, pipe);
-	if (pipe->nrbufs) {
-		int unused = (pipe->curbuf + pipe->nrbufs) & (pipe->buffers - 1);
-		/* [curbuf,unused) is in use.  Free [idx,unused) */
-		while (idx != unused) {
-			pipe_buf_release(pipe, &pipe->bufs[idx]);
-			idx = next_idx(idx, pipe);
-			pipe->nrbufs--;
-		}
+		i->iov_offset = buf->offset + left;
 	}
-	i->count -= orig_sz;
+	i->count -= size;
+	/* ... and discard everything past that point */
+	pipe_truncate(i);
 }
 
 void iov_iter_advance(struct iov_iter *i, size_t size)
@@ -727,6 +734,68 @@ void iov_iter_advance(struct iov_iter *i
 }
 EXPORT_SYMBOL(iov_iter_advance);
 
+void iov_iter_revert(struct iov_iter *i, size_t unroll)
+{
+	if (!unroll)
+		return;
+	i->count += unroll;
+	if (unlikely(i->type & ITER_PIPE)) {
+		struct pipe_inode_info *pipe = i->pipe;
+		int idx = i->idx;
+		size_t off = i->iov_offset;
+		while (1) {
+			size_t n = off - pipe->bufs[idx].offset;
+			if (unroll < n) {
+				off -= (n - unroll);
+				break;
+			}
+			unroll -= n;
+			if (!unroll && idx == i->start_idx) {
+				off = 0;
+				break;
+			}
+			if (!idx--)
+				idx = pipe->buffers - 1;
+			off = pipe->bufs[idx].offset + pipe->bufs[idx].len;
+		}
+		i->iov_offset = off;
+		i->idx = idx;
+		pipe_truncate(i);
+		return;
+	}
+	if (unroll <= i->iov_offset) {
+		i->iov_offset -= unroll;
+		return;
+	}
+	unroll -= i->iov_offset;
+	if (i->type & ITER_BVEC) {
+		const struct bio_vec *bvec = i->bvec;
+		while (1) {
+			size_t n = (--bvec)->bv_len;
+			i->nr_segs++;
+			if (unroll <= n) {
+				i->bvec = bvec;
+				i->iov_offset = n - unroll;
+				return;
+			}
+			unroll -= n;
+		}
+	} else { /* same logics for iovec and kvec */
+		const struct iovec *iov = i->iov;
+		while (1) {
+			size_t n = (--iov)->iov_len;
+			i->nr_segs++;
+			if (unroll <= n) {
+				i->iov = iov;
+				i->iov_offset = n - unroll;
+				return;
+			}
+			unroll -= n;
+		}
+	}
+}
+EXPORT_SYMBOL(iov_iter_revert);
+
 /*
  * Return the count of just the current iov_iter segment.
  */
@@ -774,11 +843,13 @@ void iov_iter_pipe(struct iov_iter *i, i
 			size_t count)
 {
 	BUG_ON(direction != ITER_PIPE);
+	WARN_ON(pipe->nrbufs == pipe->buffers);
 	i->type = direction;
 	i->pipe = pipe;
 	i->idx = (pipe->curbuf + pipe->nrbufs) & (pipe->buffers - 1);
 	i->iov_offset = 0;
 	i->count = count;
+	i->start_idx = i->idx;
 }
 EXPORT_SYMBOL(iov_iter_pipe);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/Kconfig.debug linux-libre-4.9.52-gnu/lib/Kconfig.debug
--- linux-libre-4.9-gnu/lib/Kconfig.debug	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/Kconfig.debug	2017-09-27 08:40:05.000000000 -0400
@@ -145,7 +145,7 @@ config DEBUG_INFO_REDUCED
 
 config DEBUG_INFO_SPLIT
 	bool "Produce split debuginfo in .dwo files"
-	depends on DEBUG_INFO
+	depends on DEBUG_INFO && !FRV
 	help
 	  Generate debug info into separate .dwo files. This significantly
 	  reduces the build directory size for builds with DEBUG_INFO,
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/libcrc32c.c linux-libre-4.9.52-gnu/lib/libcrc32c.c
--- linux-libre-4.9-gnu/lib/libcrc32c.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/libcrc32c.c	2017-09-27 08:40:05.000000000 -0400
@@ -43,7 +43,7 @@ static struct crypto_shash *tfm;
 u32 crc32c(u32 crc, const void *address, unsigned int length)
 {
 	SHASH_DESC_ON_STACK(shash, tfm);
-	u32 *ctx = (u32 *)shash_desc_ctx(shash);
+	u32 ret, *ctx = (u32 *)shash_desc_ctx(shash);
 	int err;
 
 	shash->tfm = tfm;
@@ -53,7 +53,9 @@ u32 crc32c(u32 crc, const void *address,
 	err = crypto_shash_update(shash, address, length);
 	BUG_ON(err);
 
-	return *ctx;
+	ret = *ctx;
+	barrier_data(ctx);
+	return ret;
 }
 
 EXPORT_SYMBOL(crc32c);
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/lz4/lz4hc_compress.c linux-libre-4.9.52-gnu/lib/lz4/lz4hc_compress.c
--- linux-libre-4.9-gnu/lib/lz4/lz4hc_compress.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/lz4/lz4hc_compress.c	2017-09-27 08:40:05.000000000 -0400
@@ -131,7 +131,7 @@ static inline int lz4hc_insertandfindbes
 #endif
 	int nbattempts = MAX_NB_ATTEMPTS;
 	size_t repl = 0, ml = 0;
-	u16 delta;
+	u16 delta = 0;
 
 	/* HC4 match finder */
 	lz4hc_insert(hc4, ip);
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/mpi/mpicoder.c linux-libre-4.9.52-gnu/lib/mpi/mpicoder.c
--- linux-libre-4.9-gnu/lib/mpi/mpicoder.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/mpi/mpicoder.c	2017-09-27 08:40:05.000000000 -0400
@@ -364,11 +364,11 @@ MPI mpi_read_raw_from_sgl(struct scatter
 	}
 
 	miter.consumed = lzeros;
-	sg_miter_stop(&miter);
 
 	nbytes -= lzeros;
 	nbits = nbytes * 8;
 	if (nbits > MAX_EXTERN_MPI_BITS) {
+		sg_miter_stop(&miter);
 		pr_info("MPI: mpi too large (%u bits)\n", nbits);
 		return NULL;
 	}
@@ -376,6 +376,8 @@ MPI mpi_read_raw_from_sgl(struct scatter
 	if (nbytes > 0)
 		nbits -= count_leading_zeros(*buff) - (BITS_PER_LONG - 8);
 
+	sg_miter_stop(&miter);
+
 	nlimbs = DIV_ROUND_UP(nbytes, BYTES_PER_MPI_LIMB);
 	val = mpi_alloc(nlimbs);
 	if (!val)
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/swiotlb.c linux-libre-4.9.52-gnu/lib/swiotlb.c
--- linux-libre-4.9-gnu/lib/swiotlb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/swiotlb.c	2017-09-27 08:40:05.000000000 -0400
@@ -53,7 +53,7 @@
  */
 #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT)
 
-int swiotlb_force;
+enum swiotlb_force swiotlb_force;
 
 /*
  * Used to do a quick range check in swiotlb_tbl_unmap_single and
@@ -106,8 +106,12 @@ setup_io_tlb_npages(char *str)
 	}
 	if (*str == ',')
 		++str;
-	if (!strcmp(str, "force"))
-		swiotlb_force = 1;
+	if (!strcmp(str, "force")) {
+		swiotlb_force = SWIOTLB_FORCE;
+	} else if (!strcmp(str, "noforce")) {
+		swiotlb_force = SWIOTLB_NO_FORCE;
+		io_tlb_nslabs = 1;
+	}
 
 	return 0;
 }
@@ -452,11 +456,11 @@ phys_addr_t swiotlb_tbl_map_single(struc
 		    : 1UL << (BITS_PER_LONG - IO_TLB_SHIFT);
 
 	/*
-	 * For mappings greater than a page, we limit the stride (and
-	 * hence alignment) to a page size.
+	 * For mappings greater than or equal to a page, we limit the stride
+	 * (and hence alignment) to a page size.
 	 */
 	nslots = ALIGN(size, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT;
-	if (size > PAGE_SIZE)
+	if (size >= PAGE_SIZE)
 		stride = (1 << (PAGE_SHIFT - IO_TLB_SHIFT));
 	else
 		stride = 1;
@@ -541,8 +545,15 @@ static phys_addr_t
 map_single(struct device *hwdev, phys_addr_t phys, size_t size,
 	   enum dma_data_direction dir)
 {
-	dma_addr_t start_dma_addr = phys_to_dma(hwdev, io_tlb_start);
+	dma_addr_t start_dma_addr;
+
+	if (swiotlb_force == SWIOTLB_NO_FORCE) {
+		dev_warn_ratelimited(hwdev, "Cannot do DMA to address %pa\n",
+				     &phys);
+		return SWIOTLB_MAP_ERROR;
+	}
 
+	start_dma_addr = phys_to_dma(hwdev, io_tlb_start);
 	return swiotlb_tbl_map_single(hwdev, start_dma_addr, phys, size, dir);
 }
 
@@ -707,6 +718,9 @@ static void
 swiotlb_full(struct device *dev, size_t size, enum dma_data_direction dir,
 	     int do_panic)
 {
+	if (swiotlb_force == SWIOTLB_NO_FORCE)
+		return;
+
 	/*
 	 * Ran out of IOMMU space for this operation. This is very bad.
 	 * Unfortunately the drivers cannot handle this operation properly.
@@ -749,7 +763,7 @@ dma_addr_t swiotlb_map_page(struct devic
 	 * we can safely return the device addr and not worry about bounce
 	 * buffering it.
 	 */
-	if (dma_capable(dev, dev_addr, size) && !swiotlb_force)
+	if (dma_capable(dev, dev_addr, size) && swiotlb_force != SWIOTLB_FORCE)
 		return dev_addr;
 
 	trace_swiotlb_bounced(dev, dev_addr, size, swiotlb_force);
@@ -888,7 +902,7 @@ swiotlb_map_sg_attrs(struct device *hwde
 		phys_addr_t paddr = sg_phys(sg);
 		dma_addr_t dev_addr = phys_to_dma(hwdev, paddr);
 
-		if (swiotlb_force ||
+		if (swiotlb_force == SWIOTLB_FORCE ||
 		    !dma_capable(hwdev, dev_addr, sg->length)) {
 			phys_addr_t map = map_single(hwdev, sg_phys(sg),
 						     sg->length, dir);
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/syscall.c linux-libre-4.9.52-gnu/lib/syscall.c
--- linux-libre-4.9-gnu/lib/syscall.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/syscall.c	2017-09-27 08:40:05.000000000 -0400
@@ -11,6 +11,7 @@ static int collect_syscall(struct task_s
 
 	if (!try_get_task_stack(target)) {
 		/* Task has no stack, so the task isn't in a syscall. */
+		*sp = *pc = 0;
 		*callno = -1;
 		return 0;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/test_bpf.c linux-libre-4.9.52-gnu/lib/test_bpf.c
--- linux-libre-4.9-gnu/lib/test_bpf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/test_bpf.c	2017-09-27 08:40:05.000000000 -0400
@@ -4656,6 +4656,51 @@ static struct bpf_test tests[] = {
 		{ },
 		{ { 0, 1 } },
 	},
+	{
+		/* Mainly testing JIT + imm64 here. */
+		"JMP_JGE_X: ldimm64 test 1",
+		.u.insns_int = {
+			BPF_ALU32_IMM(BPF_MOV, R0, 0),
+			BPF_LD_IMM64(R1, 3),
+			BPF_LD_IMM64(R2, 2),
+			BPF_JMP_REG(BPF_JGE, R1, R2, 2),
+			BPF_LD_IMM64(R0, 0xffffffffffffffffUL),
+			BPF_LD_IMM64(R0, 0xeeeeeeeeeeeeeeeeUL),
+			BPF_EXIT_INSN(),
+		},
+		INTERNAL,
+		{ },
+		{ { 0, 0xeeeeeeeeU } },
+	},
+	{
+		"JMP_JGE_X: ldimm64 test 2",
+		.u.insns_int = {
+			BPF_ALU32_IMM(BPF_MOV, R0, 0),
+			BPF_LD_IMM64(R1, 3),
+			BPF_LD_IMM64(R2, 2),
+			BPF_JMP_REG(BPF_JGE, R1, R2, 0),
+			BPF_LD_IMM64(R0, 0xffffffffffffffffUL),
+			BPF_EXIT_INSN(),
+		},
+		INTERNAL,
+		{ },
+		{ { 0, 0xffffffffU } },
+	},
+	{
+		"JMP_JGE_X: ldimm64 test 3",
+		.u.insns_int = {
+			BPF_ALU32_IMM(BPF_MOV, R0, 1),
+			BPF_LD_IMM64(R1, 3),
+			BPF_LD_IMM64(R2, 2),
+			BPF_JMP_REG(BPF_JGE, R1, R2, 4),
+			BPF_LD_IMM64(R0, 0xffffffffffffffffUL),
+			BPF_LD_IMM64(R0, 0xeeeeeeeeeeeeeeeeUL),
+			BPF_EXIT_INSN(),
+		},
+		INTERNAL,
+		{ },
+		{ { 0, 1 } },
+	},
 	/* BPF_JMP | BPF_JNE | BPF_X */
 	{
 		"JMP_JNE_X: if (3 != 2) return 1",
diff -druNp --no-dereference linux-libre-4.9-gnu/lib/test_user_copy.c linux-libre-4.9.52-gnu/lib/test_user_copy.c
--- linux-libre-4.9-gnu/lib/test_user_copy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/lib/test_user_copy.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,7 +58,9 @@ static int __init test_user_copy_init(vo
 	usermem = (char __user *)user_addr;
 	bad_usermem = (char *)user_addr;
 
-	/* Legitimate usage: none of these should fail. */
+	/*
+	 * Legitimate usage: none of these copies should fail.
+	 */
 	ret |= test(copy_from_user(kmem, usermem, PAGE_SIZE),
 		    "legitimate copy_from_user failed");
 	ret |= test(copy_to_user(usermem, kmem, PAGE_SIZE),
@@ -68,19 +70,33 @@ static int __init test_user_copy_init(vo
 	ret |= test(put_user(value, (unsigned long __user *)usermem),
 		    "legitimate put_user failed");
 
-	/* Invalid usage: none of these should succeed. */
+	/*
+	 * Invalid usage: none of these copies should succeed.
+	 */
+
+	/* Reject kernel-to-kernel copies through copy_from_user(). */
 	ret |= test(!copy_from_user(kmem, (char __user *)(kmem + PAGE_SIZE),
 				    PAGE_SIZE),
 		    "illegal all-kernel copy_from_user passed");
+
+#if 0
+	/*
+	 * When running with SMAP/PAN/etc, this will Oops the kernel
+	 * due to the zeroing of userspace memory on failure. This needs
+	 * to be tested in LKDTM instead, since this test module does not
+	 * expect to explode.
+	 */
 	ret |= test(!copy_from_user(bad_usermem, (char __user *)kmem,
 				    PAGE_SIZE),
 		    "illegal reversed copy_from_user passed");
+#endif
 	ret |= test(!copy_to_user((char __user *)kmem, kmem + PAGE_SIZE,
 				  PAGE_SIZE),
 		    "illegal all-kernel copy_to_user passed");
 	ret |= test(!copy_to_user((char __user *)kmem, bad_usermem,
 				  PAGE_SIZE),
 		    "illegal reversed copy_to_user passed");
+
 	ret |= test(!get_user(value, (unsigned long __user *)kmem),
 		    "illegal get_user passed");
 	ret |= test(!put_user(value, (unsigned long __user *)kmem),
diff -druNp --no-dereference linux-libre-4.9-gnu/Makefile linux-libre-4.9.52-gnu/Makefile
--- linux-libre-4.9-gnu/Makefile	2016-12-11 17:39:18.000000000 -0500
+++ linux-libre-4.9.52-gnu/Makefile	2017-09-27 14:34:09.000000000 -0400
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 9
-SUBLEVEL = 0
+SUBLEVEL = 52
 EXTRAVERSION = -gnu
 NAME = Roaring Lionus
 
@@ -370,7 +370,7 @@ LDFLAGS_MODULE  =
 CFLAGS_KERNEL	=
 AFLAGS_KERNEL	=
 LDFLAGS_vmlinux =
-CFLAGS_GCOV	= -fprofile-arcs -ftest-coverage -fno-tree-loop-im -Wno-maybe-uninitialized
+CFLAGS_GCOV	:= -fprofile-arcs -ftest-coverage -fno-tree-loop-im $(call cc-disable-warning,maybe-uninitialized,)
 CFLAGS_KCOV	:= $(call cc-option,-fsanitize-coverage=trace-pc,)
 
 
@@ -629,6 +629,9 @@ include arch/$(SRCARCH)/Makefile
 
 KBUILD_CFLAGS	+= $(call cc-option,-fno-delete-null-pointer-checks,)
 KBUILD_CFLAGS	+= $(call cc-disable-warning,frame-address,)
+KBUILD_CFLAGS	+= $(call cc-disable-warning, format-truncation)
+KBUILD_CFLAGS	+= $(call cc-disable-warning, format-overflow)
+KBUILD_CFLAGS	+= $(call cc-disable-warning, int-in-bool-context)
 
 ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
 KBUILD_CFLAGS	+= $(call cc-option,-ffunction-sections,)
@@ -651,6 +654,12 @@ KBUILD_CFLAGS += $(call cc-ifversion, -l
 # Tell gcc to never replace conditional load with a non-conditional one
 KBUILD_CFLAGS	+= $(call cc-option,--param=allow-store-data-races=0)
 
+# check for 'asm goto'
+ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
+	KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
+	KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
+endif
+
 include scripts/Makefile.gcc-plugins
 
 ifdef CONFIG_READABLE_ASM
@@ -796,12 +805,6 @@ KBUILD_CFLAGS   += $(call cc-option,-Wer
 # use the deterministic mode of AR if available
 KBUILD_ARFLAGS := $(call ar-option,D)
 
-# check for 'asm goto'
-ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
-	KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
-	KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
-endif
-
 include scripts/Makefile.kasan
 include scripts/Makefile.extrawarn
 include scripts/Makefile.ubsan
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/backing-dev.c linux-libre-4.9.52-gnu/mm/backing-dev.c
--- linux-libre-4.9-gnu/mm/backing-dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/backing-dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -757,15 +757,20 @@ static int cgwb_bdi_init(struct backing_
 	if (!bdi->wb_congested)
 		return -ENOMEM;
 
+	atomic_set(&bdi->wb_congested->refcnt, 1);
+
 	err = wb_init(&bdi->wb, bdi, 1, GFP_KERNEL);
 	if (err) {
-		kfree(bdi->wb_congested);
+		wb_congested_put(bdi->wb_congested);
 		return err;
 	}
 	return 0;
 }
 
-static void cgwb_bdi_destroy(struct backing_dev_info *bdi) { }
+static void cgwb_bdi_destroy(struct backing_dev_info *bdi)
+{
+	wb_congested_put(bdi->wb_congested);
+}
 
 #endif	/* CONFIG_CGROUP_WRITEBACK */
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/compaction.c linux-libre-4.9.52-gnu/mm/compaction.c
--- linux-libre-4.9-gnu/mm/compaction.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/compaction.c	2017-09-27 08:40:05.000000000 -0400
@@ -634,22 +634,6 @@ isolate_freepages_range(struct compact_c
 	return pfn;
 }
 
-/* Update the number of anon and file isolated pages in the zone */
-static void acct_isolated(struct zone *zone, struct compact_control *cc)
-{
-	struct page *page;
-	unsigned int count[2] = { 0, };
-
-	if (list_empty(&cc->migratepages))
-		return;
-
-	list_for_each_entry(page, &cc->migratepages, lru)
-		count[!!page_is_file_cache(page)]++;
-
-	mod_node_page_state(zone->zone_pgdat, NR_ISOLATED_ANON, count[0]);
-	mod_node_page_state(zone->zone_pgdat, NR_ISOLATED_FILE, count[1]);
-}
-
 /* Similar to reclaim, but different enough that they don't share logic */
 static bool too_many_isolated(struct zone *zone)
 {
@@ -866,6 +850,8 @@ isolate_migratepages_block(struct compac
 
 		/* Successfully isolated */
 		del_page_from_lru_list(page, lruvec, page_lru(page));
+		inc_node_page_state(page,
+				NR_ISOLATED_ANON + page_is_file_cache(page));
 
 isolate_success:
 		list_add(&page->lru, &cc->migratepages);
@@ -902,7 +888,6 @@ isolate_fail:
 				spin_unlock_irqrestore(zone_lru_lock(zone), flags);
 				locked = false;
 			}
-			acct_isolated(zone, cc);
 			putback_movable_pages(&cc->migratepages);
 			cc->nr_migratepages = 0;
 			cc->last_migrated_pfn = 0;
@@ -988,7 +973,6 @@ isolate_migratepages_range(struct compac
 		if (cc->nr_migratepages == COMPACT_CLUSTER_MAX)
 			break;
 	}
-	acct_isolated(cc->zone, cc);
 
 	return pfn;
 }
@@ -1258,10 +1242,8 @@ static isolate_migrate_t isolate_migrate
 		low_pfn = isolate_migratepages_block(cc, low_pfn,
 						block_end_pfn, isolate_mode);
 
-		if (!low_pfn || cc->contended) {
-			acct_isolated(zone, cc);
+		if (!low_pfn || cc->contended)
 			return ISOLATE_ABORT;
-		}
 
 		/*
 		 * Either we isolated something and proceed with migration. Or
@@ -1271,7 +1253,6 @@ static isolate_migrate_t isolate_migrate
 		break;
 	}
 
-	acct_isolated(zone, cc);
 	/* Record where migration scanner will be restarted. */
 	cc->migrate_pfn = low_pfn;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/filemap.c linux-libre-4.9.52-gnu/mm/filemap.c
--- linux-libre-4.9-gnu/mm/filemap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/filemap.c	2017-09-27 08:40:05.000000000 -0400
@@ -144,7 +144,7 @@ static int page_cache_tree_insert(struct
 				workingset_node_pages_dec(node);
 			/* Wakeup waiters for exceptional entry lock */
 			dax_wake_mapping_entry_waiter(mapping, page->index,
-						      false);
+						      true);
 		}
 	}
 	radix_tree_replace_slot(slot, page);
@@ -910,9 +910,12 @@ void page_endio(struct page *page, bool
 		unlock_page(page);
 	} else {
 		if (err) {
+			struct address_space *mapping;
+
 			SetPageError(page);
-			if (page->mapping)
-				mapping_set_error(page->mapping, err);
+			mapping = page_mapping(page);
+			if (mapping)
+				mapping_set_error(mapping, err);
 		}
 		end_page_writeback(page);
 	}
@@ -1686,7 +1689,7 @@ static ssize_t do_generic_file_read(stru
 	int error = 0;
 
 	if (unlikely(*ppos >= inode->i_sb->s_maxbytes))
-		return -EINVAL;
+		return 0;
 	iov_iter_truncate(iter, inode->i_sb->s_maxbytes);
 
 	index = *ppos >> PAGE_SHIFT;
@@ -1703,6 +1706,11 @@ static ssize_t do_generic_file_read(stru
 
 		cond_resched();
 find_page:
+		if (fatal_signal_pending(current)) {
+			error = -EINTR;
+			goto out;
+		}
+
 		page = find_get_page(mapping, index);
 		if (!page) {
 			page_cache_sync_readahead(mapping,
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/gup.c linux-libre-4.9.52-gnu/mm/gup.c
--- linux-libre-4.9-gnu/mm/gup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/gup.c	2017-09-27 08:40:05.000000000 -0400
@@ -370,11 +370,6 @@ static int faultin_page(struct task_stru
 	/* mlock all present pages, but do not fault in new pages */
 	if ((*flags & (FOLL_POPULATE | FOLL_MLOCK)) == FOLL_MLOCK)
 		return -ENOENT;
-	/* For mm_populate(), just skip the stack guard page. */
-	if ((*flags & FOLL_POPULATE) &&
-			(stack_guard_page_start(vma, address) ||
-			 stack_guard_page_end(vma, address + PAGE_SIZE)))
-		return -ENOENT;
 	if (*flags & FOLL_WRITE)
 		fault_flags |= FAULT_FLAG_WRITE;
 	if (*flags & FOLL_REMOTE)
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/huge_memory.c linux-libre-4.9.52-gnu/mm/huge_memory.c
--- linux-libre-4.9-gnu/mm/huge_memory.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/huge_memory.c	2017-09-27 08:40:05.000000000 -0400
@@ -772,6 +772,12 @@ struct page *follow_devmap_pmd(struct vm
 
 	assert_spin_locked(pmd_lockptr(mm, pmd));
 
+	/*
+	 * When we COW a devmap PMD entry, we split it into PTEs, so we should
+	 * not be in this function with `flags & FOLL_COW` set.
+	 */
+	WARN_ONCE(flags & FOLL_COW, "mm: In follow_devmap_pmd with FOLL_COW set");
+
 	if (flags & FOLL_WRITE && !pmd_write(*pmd))
 		return NULL;
 
@@ -872,15 +878,17 @@ void huge_pmd_set_accessed(struct fault_
 {
 	pmd_t entry;
 	unsigned long haddr;
+	bool write = fe->flags & FAULT_FLAG_WRITE;
 
 	fe->ptl = pmd_lock(fe->vma->vm_mm, fe->pmd);
 	if (unlikely(!pmd_same(*fe->pmd, orig_pmd)))
 		goto unlock;
 
 	entry = pmd_mkyoung(orig_pmd);
+	if (write)
+		entry = pmd_mkdirty(entry);
 	haddr = fe->address & HPAGE_PMD_MASK;
-	if (pmdp_set_access_flags(fe->vma, haddr, fe->pmd, entry,
-				fe->flags & FAULT_FLAG_WRITE))
+	if (pmdp_set_access_flags(fe->vma, haddr, fe->pmd, entry, write))
 		update_mmu_cache_pmd(fe->vma, fe->address, fe->pmd);
 
 unlock:
@@ -1116,6 +1124,16 @@ out_unlock:
 	return ret;
 }
 
+/*
+ * FOLL_FORCE can write to even unwritable pmd's, but only
+ * after we've gone through a COW cycle and they are dirty.
+ */
+static inline bool can_follow_write_pmd(pmd_t pmd, unsigned int flags)
+{
+	return pmd_write(pmd) ||
+	       ((flags & FOLL_FORCE) && (flags & FOLL_COW) && pmd_dirty(pmd));
+}
+
 struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
 				   unsigned long addr,
 				   pmd_t *pmd,
@@ -1126,7 +1144,7 @@ struct page *follow_trans_huge_pmd(struc
 
 	assert_spin_locked(pmd_lockptr(mm, pmd));
 
-	if (flags & FOLL_WRITE && !pmd_write(*pmd))
+	if (flags & FOLL_WRITE && !can_follow_write_pmd(*pmd, flags))
 		goto out;
 
 	/* Avoid dumping huge zero page */
@@ -1209,8 +1227,11 @@ int do_huge_pmd_numa_page(struct fault_e
 	 */
 	if (unlikely(pmd_trans_migrating(*fe->pmd))) {
 		page = pmd_page(*fe->pmd);
+		if (!get_page_unless_zero(page))
+			goto out_unlock;
 		spin_unlock(fe->ptl);
 		wait_on_page_locked(page);
+		put_page(page);
 		goto out;
 	}
 
@@ -1242,8 +1263,11 @@ int do_huge_pmd_numa_page(struct fault_e
 
 	/* Migration could have started since the pmd_trans_migrating check */
 	if (!page_locked) {
+		if (!get_page_unless_zero(page))
+			goto out_unlock;
 		spin_unlock(fe->ptl);
 		wait_on_page_locked(page);
+		put_page(page);
 		page_nid = -1;
 		goto out;
 	}
@@ -1349,8 +1373,8 @@ bool madvise_free_huge_pmd(struct mmu_ga
 		get_page(page);
 		spin_unlock(ptl);
 		split_huge_page(page);
-		put_page(page);
 		unlock_page(page);
+		put_page(page);
 		goto out_unlocked;
 	}
 
@@ -1362,8 +1386,7 @@ bool madvise_free_huge_pmd(struct mmu_ga
 		deactivate_page(page);
 
 	if (pmd_young(orig_pmd) || pmd_dirty(orig_pmd)) {
-		orig_pmd = pmdp_huge_get_and_clear_full(tlb->mm, addr, pmd,
-			tlb->fullmm);
+		pmdp_invalidate(vma, addr, pmd);
 		orig_pmd = pmd_mkold(orig_pmd);
 		orig_pmd = pmd_mkclean(orig_pmd);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/hugetlb.c linux-libre-4.9.52-gnu/mm/hugetlb.c
--- linux-libre-4.9-gnu/mm/hugetlb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/hugetlb.c	2017-09-27 08:40:05.000000000 -0400
@@ -1773,23 +1773,32 @@ free:
 }
 
 /*
- * When releasing a hugetlb pool reservation, any surplus pages that were
- * allocated to satisfy the reservation must be explicitly freed if they were
- * never used.
- * Called with hugetlb_lock held.
+ * This routine has two main purposes:
+ * 1) Decrement the reservation count (resv_huge_pages) by the value passed
+ *    in unused_resv_pages.  This corresponds to the prior adjustments made
+ *    to the associated reservation map.
+ * 2) Free any unused surplus pages that may have been allocated to satisfy
+ *    the reservation.  As many as unused_resv_pages may be freed.
+ *
+ * Called with hugetlb_lock held.  However, the lock could be dropped (and
+ * reacquired) during calls to cond_resched_lock.  Whenever dropping the lock,
+ * we must make sure nobody else can claim pages we are in the process of
+ * freeing.  Do this by ensuring resv_huge_page always is greater than the
+ * number of huge pages we plan to free when dropping the lock.
  */
 static void return_unused_surplus_pages(struct hstate *h,
 					unsigned long unused_resv_pages)
 {
 	unsigned long nr_pages;
 
-	/* Uncommit the reservation */
-	h->resv_huge_pages -= unused_resv_pages;
-
 	/* Cannot return gigantic pages currently */
 	if (hstate_is_gigantic(h))
-		return;
+		goto out;
 
+	/*
+	 * Part (or even all) of the reservation could have been backed
+	 * by pre-allocated pages. Only free surplus pages.
+	 */
 	nr_pages = min(unused_resv_pages, h->surplus_huge_pages);
 
 	/*
@@ -1799,12 +1808,22 @@ static void return_unused_surplus_pages(
 	 * when the nodes with surplus pages have no free pages.
 	 * free_pool_huge_page() will balance the the freed pages across the
 	 * on-line nodes with memory and will handle the hstate accounting.
+	 *
+	 * Note that we decrement resv_huge_pages as we free the pages.  If
+	 * we drop the lock, resv_huge_pages will still be sufficiently large
+	 * to cover subsequent pages we may free.
 	 */
 	while (nr_pages--) {
+		h->resv_huge_pages--;
+		unused_resv_pages--;
 		if (!free_pool_huge_page(h, &node_states[N_MEMORY], 1))
-			break;
+			goto out;
 		cond_resched_lock(&hugetlb_lock);
 	}
+
+out:
+	/* Fully uncommit the reservation */
+	h->resv_huge_pages -= unused_resv_pages;
 }
 
 
@@ -3450,15 +3469,17 @@ static void unmap_ref_private(struct mm_
  * Keep the pte_same checks anyway to make transition from the mutex easier.
  */
 static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
-			unsigned long address, pte_t *ptep, pte_t pte,
-			struct page *pagecache_page, spinlock_t *ptl)
+		       unsigned long address, pte_t *ptep,
+		       struct page *pagecache_page, spinlock_t *ptl)
 {
+	pte_t pte;
 	struct hstate *h = hstate_vma(vma);
 	struct page *old_page, *new_page;
 	int ret = 0, outside_reserve = 0;
 	unsigned long mmun_start;	/* For mmu_notifiers */
 	unsigned long mmun_end;		/* For mmu_notifiers */
 
+	pte = huge_ptep_get(ptep);
 	old_page = pte_page(pte);
 
 retry_avoidcopy:
@@ -3733,7 +3754,7 @@ retry:
 	hugetlb_count_add(pages_per_huge_page(h), mm);
 	if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
 		/* Optimization, do the COW without a second fault */
-		ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page, ptl);
+		ret = hugetlb_cow(mm, vma, address, ptep, page, ptl);
 	}
 
 	spin_unlock(ptl);
@@ -3888,8 +3909,8 @@ int hugetlb_fault(struct mm_struct *mm,
 
 	if (flags & FAULT_FLAG_WRITE) {
 		if (!huge_pte_write(entry)) {
-			ret = hugetlb_cow(mm, vma, address, ptep, entry,
-					pagecache_page, ptl);
+			ret = hugetlb_cow(mm, vma, address, ptep,
+					  pagecache_page, ptl);
 			goto out_put_page;
 		}
 		entry = huge_pte_mkdirty(entry);
@@ -4450,6 +4471,7 @@ follow_huge_pmd(struct mm_struct *mm, un
 {
 	struct page *page = NULL;
 	spinlock_t *ptl;
+	pte_t pte;
 retry:
 	ptl = pmd_lockptr(mm, pmd);
 	spin_lock(ptl);
@@ -4459,12 +4481,13 @@ retry:
 	 */
 	if (!pmd_huge(*pmd))
 		goto out;
-	if (pmd_present(*pmd)) {
+	pte = huge_ptep_get((pte_t *)pmd);
+	if (pte_present(pte)) {
 		page = pmd_page(*pmd) + ((address & ~PMD_MASK) >> PAGE_SHIFT);
 		if (flags & FOLL_GET)
 			get_page(page);
 	} else {
-		if (is_hugetlb_entry_migration(huge_ptep_get((pte_t *)pmd))) {
+		if (is_hugetlb_entry_migration(pte)) {
 			spin_unlock(ptl);
 			__migration_entry_wait(mm, (pte_t *)pmd, ptl);
 			goto retry;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/init-mm.c linux-libre-4.9.52-gnu/mm/init-mm.c
--- linux-libre-4.9-gnu/mm/init-mm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/init-mm.c	2017-09-27 08:40:05.000000000 -0400
@@ -6,6 +6,7 @@
 #include <linux/cpumask.h>
 
 #include <linux/atomic.h>
+#include <linux/user_namespace.h>
 #include <asm/pgtable.h>
 #include <asm/mmu.h>
 
@@ -21,5 +22,6 @@ struct mm_struct init_mm = {
 	.mmap_sem	= __RWSEM_INITIALIZER(init_mm.mmap_sem),
 	.page_table_lock =  __SPIN_LOCK_UNLOCKED(init_mm.page_table_lock),
 	.mmlist		= LIST_HEAD_INIT(init_mm.mmlist),
+	.user_ns	= &init_user_ns,
 	INIT_MM_CONTEXT(init_mm)
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/internal.h linux-libre-4.9.52-gnu/mm/internal.h
--- linux-libre-4.9-gnu/mm/internal.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/internal.h	2017-09-27 08:40:05.000000000 -0400
@@ -472,6 +472,7 @@ struct tlbflush_unmap_batch;
 #ifdef CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
 void try_to_unmap_flush(void);
 void try_to_unmap_flush_dirty(void);
+void flush_tlb_batched_pending(struct mm_struct *mm);
 #else
 static inline void try_to_unmap_flush(void)
 {
@@ -479,7 +480,9 @@ static inline void try_to_unmap_flush(vo
 static inline void try_to_unmap_flush_dirty(void)
 {
 }
-
+static inline void flush_tlb_batched_pending(struct mm_struct *mm)
+{
+}
 #endif /* CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH */
 
 extern const struct trace_print_flags pageflag_names[];
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/kasan/report.c linux-libre-4.9.52-gnu/mm/kasan/report.c
--- linux-libre-4.9-gnu/mm/kasan/report.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/kasan/report.c	2017-09-27 08:40:05.000000000 -0400
@@ -13,6 +13,7 @@
  *
  */
 
+#include <linux/ftrace.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/printk.h>
@@ -298,6 +299,8 @@ void kasan_report(unsigned long addr, si
 	if (likely(!kasan_report_enabled()))
 		return;
 
+	disable_trace_on_warning();
+
 	info.access_addr = (void *)addr;
 	info.access_size = size;
 	info.is_write = is_write;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/khugepaged.c linux-libre-4.9.52-gnu/mm/khugepaged.c
--- linux-libre-4.9-gnu/mm/khugepaged.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/khugepaged.c	2017-09-27 08:40:05.000000000 -0400
@@ -1403,6 +1403,9 @@ static void collapse_shmem(struct mm_str
 
 		spin_lock_irq(&mapping->tree_lock);
 
+		slot = radix_tree_lookup_slot(&mapping->page_tree, index);
+		VM_BUG_ON_PAGE(page != radix_tree_deref_slot_protected(slot,
+					&mapping->tree_lock), page);
 		VM_BUG_ON_PAGE(page_mapped(page), page);
 
 		/*
@@ -1426,6 +1429,7 @@ static void collapse_shmem(struct mm_str
 		radix_tree_replace_slot(slot,
 				new_page + (index % HPAGE_PMD_NR));
 
+		slot = radix_tree_iter_next(&iter);
 		index++;
 		continue;
 out_lru:
@@ -1521,9 +1525,11 @@ tree_unlocked:
 			if (!page || iter.index < page->index) {
 				if (!nr_none)
 					break;
-				/* Put holes back where they were */
-				radix_tree_replace_slot(slot, NULL);
 				nr_none--;
+				/* Put holes back where they were */
+				radix_tree_delete(&mapping->page_tree,
+						  iter.index);
+				slot = radix_tree_iter_next(&iter);
 				continue;
 			}
 
@@ -1537,6 +1543,7 @@ tree_unlocked:
 			putback_lru_page(page);
 			unlock_page(page);
 			spin_lock_irq(&mapping->tree_lock);
+			slot = radix_tree_iter_next(&iter);
 		}
 		VM_BUG_ON(nr_none);
 		spin_unlock_irq(&mapping->tree_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/ksm.c linux-libre-4.9.52-gnu/mm/ksm.c
--- linux-libre-4.9-gnu/mm/ksm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/ksm.c	2017-09-27 08:40:05.000000000 -0400
@@ -1002,8 +1002,7 @@ static int try_to_merge_one_page(struct
 		goto out;
 
 	if (PageTransCompound(page)) {
-		err = split_huge_page(page);
-		if (err)
+		if (split_huge_page(page))
 			goto out_unlock;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/list_lru.c linux-libre-4.9.52-gnu/mm/list_lru.c
--- linux-libre-4.9-gnu/mm/list_lru.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/list_lru.c	2017-09-27 08:40:05.000000000 -0400
@@ -117,6 +117,7 @@ bool list_lru_add(struct list_lru *lru,
 		l = list_lru_from_kmem(nlru, item);
 		list_add_tail(item, &l->list);
 		l->nr_items++;
+		nlru->nr_items++;
 		spin_unlock(&nlru->lock);
 		return true;
 	}
@@ -136,6 +137,7 @@ bool list_lru_del(struct list_lru *lru,
 		l = list_lru_from_kmem(nlru, item);
 		list_del_init(item);
 		l->nr_items--;
+		nlru->nr_items--;
 		spin_unlock(&nlru->lock);
 		return true;
 	}
@@ -183,15 +185,10 @@ EXPORT_SYMBOL_GPL(list_lru_count_one);
 
 unsigned long list_lru_count_node(struct list_lru *lru, int nid)
 {
-	long count = 0;
-	int memcg_idx;
+	struct list_lru_node *nlru;
 
-	count += __list_lru_count_one(lru, nid, -1);
-	if (list_lru_memcg_aware(lru)) {
-		for_each_memcg_cache_index(memcg_idx)
-			count += __list_lru_count_one(lru, nid, memcg_idx);
-	}
-	return count;
+	nlru = &lru->node[nid];
+	return nlru->nr_items;
 }
 EXPORT_SYMBOL_GPL(list_lru_count_node);
 
@@ -226,6 +223,7 @@ restart:
 			assert_spin_locked(&nlru->lock);
 		case LRU_REMOVED:
 			isolated++;
+			nlru->nr_items--;
 			/*
 			 * If the lru lock has been dropped, our list
 			 * traversal is now invalid and so we have to
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/madvise.c linux-libre-4.9.52-gnu/mm/madvise.c
--- linux-libre-4.9-gnu/mm/madvise.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/madvise.c	2017-09-27 08:40:05.000000000 -0400
@@ -21,6 +21,7 @@
 #include <linux/swap.h>
 #include <linux/swapops.h>
 #include <linux/mmu_notifier.h>
+#include "internal.h"
 
 #include <asm/tlb.h>
 
@@ -282,6 +283,7 @@ static int madvise_free_pte_range(pmd_t
 		return 0;
 
 	orig_pte = pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
+	flush_tlb_batched_pending(mm);
 	arch_enter_lazy_mmu_mode();
 	for (; addr != end; pte++, addr += PAGE_SIZE) {
 		ptent = *pte;
@@ -329,8 +331,8 @@ static int madvise_free_pte_range(pmd_t
 				pte_offset_map_lock(mm, pmd, addr, &ptl);
 				goto out;
 			}
-			put_page(page);
 			unlock_page(page);
+			put_page(page);
 			pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
 			pte--;
 			addr -= PAGE_SIZE;
@@ -531,6 +533,8 @@ static long madvise_remove(struct vm_are
 static int madvise_hwpoison(int bhv, unsigned long start, unsigned long end)
 {
 	struct page *p;
+	struct zone *zone;
+
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 	for (; start < end; start += PAGE_SIZE <<
@@ -559,6 +563,11 @@ static int madvise_hwpoison(int bhv, uns
 		if (ret)
 			return ret;
 	}
+
+	/* Ensure that all poisoned pages are removed from per-cpu lists */
+	for_each_populated_zone(zone)
+		drain_all_pages(zone);
+
 	return 0;
 }
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/memblock.c linux-libre-4.9.52-gnu/mm/memblock.c
--- linux-libre-4.9-gnu/mm/memblock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/memblock.c	2017-09-27 08:40:05.000000000 -0400
@@ -297,31 +297,27 @@ static void __init_memblock memblock_rem
 }
 
 #ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-
-phys_addr_t __init_memblock get_allocated_memblock_reserved_regions_info(
-					phys_addr_t *addr)
-{
-	if (memblock.reserved.regions == memblock_reserved_init_regions)
-		return 0;
-
-	*addr = __pa(memblock.reserved.regions);
-
-	return PAGE_ALIGN(sizeof(struct memblock_region) *
-			  memblock.reserved.max);
-}
-
-phys_addr_t __init_memblock get_allocated_memblock_memory_regions_info(
-					phys_addr_t *addr)
+/**
+ * Discard memory and reserved arrays if they were allocated
+ */
+void __init memblock_discard(void)
 {
-	if (memblock.memory.regions == memblock_memory_init_regions)
-		return 0;
+	phys_addr_t addr, size;
 
-	*addr = __pa(memblock.memory.regions);
+	if (memblock.reserved.regions != memblock_reserved_init_regions) {
+		addr = __pa(memblock.reserved.regions);
+		size = PAGE_ALIGN(sizeof(struct memblock_region) *
+				  memblock.reserved.max);
+		__memblock_free_late(addr, size);
+	}
 
-	return PAGE_ALIGN(sizeof(struct memblock_region) *
-			  memblock.memory.max);
+	if (memblock.memory.regions != memblock_memory_init_regions) {
+		addr = __pa(memblock.memory.regions);
+		size = PAGE_ALIGN(sizeof(struct memblock_region) *
+				  memblock.memory.max);
+		__memblock_free_late(addr, size);
+	}
 }
-
 #endif
 
 /**
@@ -1696,6 +1692,29 @@ static void __init_memblock memblock_dum
 	}
 }
 
+extern unsigned long __init_memblock
+memblock_reserved_memory_within(phys_addr_t start_addr, phys_addr_t end_addr)
+{
+	struct memblock_region *rgn;
+	unsigned long size = 0;
+	int idx;
+
+	for_each_memblock_type((&memblock.reserved), rgn) {
+		phys_addr_t start, end;
+
+		if (rgn->base + rgn->size < start_addr)
+			continue;
+		if (rgn->base > end_addr)
+			continue;
+
+		start = rgn->base;
+		end = start + rgn->size;
+		size += end - start;
+	}
+
+	return size;
+}
+
 void __init_memblock __memblock_dump_all(void)
 {
 	pr_info("MEMBLOCK configuration:\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/memcontrol.c linux-libre-4.9.52-gnu/mm/memcontrol.c
--- linux-libre-4.9-gnu/mm/memcontrol.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/memcontrol.c	2017-09-27 08:40:05.000000000 -0400
@@ -625,8 +625,8 @@ static void mem_cgroup_charge_statistics
 unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
 					   int nid, unsigned int lru_mask)
 {
+	struct lruvec *lruvec = mem_cgroup_lruvec(NODE_DATA(nid), memcg);
 	unsigned long nr = 0;
-	struct mem_cgroup_per_node *mz;
 	enum lru_list lru;
 
 	VM_BUG_ON((unsigned)nid >= nr_node_ids);
@@ -634,8 +634,7 @@ unsigned long mem_cgroup_node_nr_lru_pag
 	for_each_lru(lru) {
 		if (!(BIT(lru) & lru_mask))
 			continue;
-		mz = mem_cgroup_nodeinfo(memcg, nid);
-		nr += mz->lru_size[lru];
+		nr += mem_cgroup_get_lru_size(lruvec, lru);
 	}
 	return nr;
 }
@@ -1002,6 +1001,7 @@ out:
  * mem_cgroup_update_lru_size - account for adding or removing an lru page
  * @lruvec: mem_cgroup per zone lru vector
  * @lru: index of lru list the page is sitting on
+ * @zid: zone id of the accounted pages
  * @nr_pages: positive when adding or negative when removing
  *
  * This function must be called under lru_lock, just before a page is added
@@ -1009,27 +1009,25 @@ out:
  * so as to allow it to check that lru_size 0 is consistent with list_empty).
  */
 void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
-				int nr_pages)
+				int zid, int nr_pages)
 {
 	struct mem_cgroup_per_node *mz;
 	unsigned long *lru_size;
 	long size;
-	bool empty;
 
 	if (mem_cgroup_disabled())
 		return;
 
 	mz = container_of(lruvec, struct mem_cgroup_per_node, lruvec);
-	lru_size = mz->lru_size + lru;
-	empty = list_empty(lruvec->lists + lru);
+	lru_size = &mz->lru_zone_size[zid][lru];
 
 	if (nr_pages < 0)
 		*lru_size += nr_pages;
 
 	size = *lru_size;
-	if (WARN_ONCE(size < 0 || empty != !size,
-		"%s(%p, %d, %d): lru_size %ld but %sempty\n",
-		__func__, lruvec, lru, nr_pages, size, empty ? "" : "not ")) {
+	if (WARN_ONCE(size < 0,
+		"%s(%p, %d, %d): lru_size %ld\n",
+		__func__, lruvec, lru, nr_pages, size)) {
 		VM_BUG_ON(1);
 		*lru_size = 0;
 	}
@@ -2154,6 +2152,8 @@ struct memcg_kmem_cache_create_work {
 	struct work_struct work;
 };
 
+static struct workqueue_struct *memcg_kmem_cache_create_wq;
+
 static void memcg_kmem_cache_create_func(struct work_struct *w)
 {
 	struct memcg_kmem_cache_create_work *cw =
@@ -2185,7 +2185,7 @@ static void __memcg_schedule_kmem_cache_
 	cw->cachep = cachep;
 	INIT_WORK(&cw->work, memcg_kmem_cache_create_func);
 
-	schedule_work(&cw->work);
+	queue_work(memcg_kmem_cache_create_wq, &cw->work);
 }
 
 static void memcg_schedule_kmem_cache_create(struct mem_cgroup *memcg,
@@ -4141,17 +4141,22 @@ static void free_mem_cgroup_per_node_inf
 	kfree(memcg->nodeinfo[node]);
 }
 
-static void mem_cgroup_free(struct mem_cgroup *memcg)
+static void __mem_cgroup_free(struct mem_cgroup *memcg)
 {
 	int node;
 
-	memcg_wb_domain_exit(memcg);
 	for_each_node(node)
 		free_mem_cgroup_per_node_info(memcg, node);
 	free_percpu(memcg->stat);
 	kfree(memcg);
 }
 
+static void mem_cgroup_free(struct mem_cgroup *memcg)
+{
+	memcg_wb_domain_exit(memcg);
+	__mem_cgroup_free(memcg);
+}
+
 static struct mem_cgroup *mem_cgroup_alloc(void)
 {
 	struct mem_cgroup *memcg;
@@ -4202,7 +4207,7 @@ static struct mem_cgroup *mem_cgroup_all
 fail:
 	if (memcg->id.id > 0)
 		idr_remove(&mem_cgroup_idr, memcg->id.id);
-	mem_cgroup_free(memcg);
+	__mem_cgroup_free(memcg);
 	return NULL;
 }
 
@@ -4362,9 +4367,9 @@ static int mem_cgroup_do_precharge(unsig
 		return ret;
 	}
 
-	/* Try charges one by one with reclaim */
+	/* Try charges one by one with reclaim, but do not retry */
 	while (count--) {
-		ret = try_charge(mc.to, GFP_KERNEL & ~__GFP_NORETRY, 1);
+		ret = try_charge(mc.to, GFP_KERNEL | __GFP_NORETRY, 1);
 		if (ret)
 			return ret;
 		mc.precharge++;
@@ -5783,6 +5788,17 @@ static int __init mem_cgroup_init(void)
 {
 	int cpu, node;
 
+#ifndef CONFIG_SLOB
+	/*
+	 * Kmem cache creation is mostly done with the slab_mutex held,
+	 * so use a special workqueue to avoid stalling all worker
+	 * threads in case lots of cgroups are created simultaneously.
+	 */
+	memcg_kmem_cache_create_wq =
+		alloc_ordered_workqueue("memcg_kmem_cache_create", 0);
+	BUG_ON(!memcg_kmem_cache_create_wq);
+#endif
+
 	hotcpu_notifier(memcg_cpu_hotplug_callback, 0);
 
 	for_each_possible_cpu(cpu)
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/memory.c linux-libre-4.9.52-gnu/mm/memory.c
--- linux-libre-4.9-gnu/mm/memory.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/memory.c	2017-09-27 08:40:05.000000000 -0400
@@ -1124,6 +1124,7 @@ again:
 	init_rss_vec(rss);
 	start_pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
 	pte = start_pte;
+	flush_tlb_batched_pending(mm);
 	arch_enter_lazy_mmu_mode();
 	do {
 		pte_t ptent = *pte;
@@ -2699,40 +2700,6 @@ out_release:
 }
 
 /*
- * This is like a special single-page "expand_{down|up}wards()",
- * except we must first make sure that 'address{-|+}PAGE_SIZE'
- * doesn't hit another vma.
- */
-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
-{
-	address &= PAGE_MASK;
-	if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
-		struct vm_area_struct *prev = vma->vm_prev;
-
-		/*
-		 * Is there a mapping abutting this one below?
-		 *
-		 * That's only ok if it's the same stack mapping
-		 * that has gotten split..
-		 */
-		if (prev && prev->vm_end == address)
-			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
-
-		return expand_downwards(vma, address - PAGE_SIZE);
-	}
-	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
-		struct vm_area_struct *next = vma->vm_next;
-
-		/* As VM_GROWSDOWN but s/below/above/ */
-		if (next && next->vm_start == address + PAGE_SIZE)
-			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
-
-		return expand_upwards(vma, address + PAGE_SIZE);
-	}
-	return 0;
-}
-
-/*
  * We enter with non-exclusive mmap_sem (to exclude vma changes,
  * but allow concurrent faults), and pte mapped but not yet locked.
  * We return with mmap_sem still held, but pte unmapped and unlocked.
@@ -2748,10 +2715,6 @@ static int do_anonymous_page(struct faul
 	if (vma->vm_flags & VM_SHARED)
 		return VM_FAULT_SIGBUS;
 
-	/* Check if we need to add a guard page to the stack */
-	if (check_stack_guard_page(vma, fe->address) < 0)
-		return VM_FAULT_SIGSEGV;
-
 	/*
 	 * Use pte_alloc() instead of pte_alloc_map().  We can't run
 	 * pte_offset_map() on pmds where a huge pmd might be created
@@ -3633,6 +3596,11 @@ int handle_mm_fault(struct vm_area_struc
 	/* do counter updates before entering really critical section. */
 	check_sync_rss_stat(current);
 
+	if (!arch_vma_access_permitted(vma, flags & FAULT_FLAG_WRITE,
+					    flags & FAULT_FLAG_INSTRUCTION,
+					    flags & FAULT_FLAG_REMOTE))
+		return VM_FAULT_SIGSEGV;
+
 	/*
 	 * Enable the memcg OOM handling for faults triggered in user
 	 * space.  Kernel faults are handled more gracefully.
@@ -3640,11 +3608,6 @@ int handle_mm_fault(struct vm_area_struc
 	if (flags & FAULT_FLAG_USER)
 		mem_cgroup_oom_enable();
 
-	if (!arch_vma_access_permitted(vma, flags & FAULT_FLAG_WRITE,
-					    flags & FAULT_FLAG_INSTRUCTION,
-					    flags & FAULT_FLAG_REMOTE))
-		return VM_FAULT_SIGSEGV;
-
 	if (unlikely(is_vm_hugetlb_page(vma)))
 		ret = hugetlb_fault(vma->vm_mm, vma, address, flags);
 	else
@@ -3672,8 +3635,18 @@ int handle_mm_fault(struct vm_area_struc
 	 * further.
 	 */
 	if (unlikely((current->flags & PF_KTHREAD) && !(ret & VM_FAULT_ERROR)
-				&& test_bit(MMF_UNSTABLE, &vma->vm_mm->flags)))
+				&& test_bit(MMF_UNSTABLE, &vma->vm_mm->flags))) {
+
+		/*
+		 * We are going to enforce SIGBUS but the PF path might have
+		 * dropped the mmap_sem already so take it again so that
+		 * we do not break expectations of all arch specific PF paths
+		 * and g-u-p
+		 */
+		if (ret & VM_FAULT_RETRY)
+			down_read(&vma->vm_mm->mmap_sem);
 		ret = VM_FAULT_SIGBUS;
+	}
 
 	return ret;
 }
@@ -3868,7 +3841,7 @@ EXPORT_SYMBOL_GPL(generic_access_phys);
  * Access another process' address space as given in mm.  If non-NULL, use the
  * given task for page fault accounting.
  */
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
 		unsigned long addr, void *buf, int len, unsigned int gup_flags)
 {
 	struct vm_area_struct *vma;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/memory-failure.c linux-libre-4.9.52-gnu/mm/memory-failure.c
--- linux-libre-4.9-gnu/mm/memory-failure.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/memory-failure.c	2017-09-27 08:40:05.000000000 -0400
@@ -1176,7 +1176,10 @@ int memory_failure(unsigned long pfn, in
 	 * page_remove_rmap() in try_to_unmap_one(). So to determine page status
 	 * correctly, we save a copy of the page flags at this time.
 	 */
-	page_flags = p->flags;
+	if (PageHuge(p))
+		page_flags = hpage->flags;
+	else
+		page_flags = p->flags;
 
 	/*
 	 * unpoison always clear PG_hwpoison inside page lock
@@ -1587,12 +1590,8 @@ static int soft_offline_huge_page(struct
 	if (ret) {
 		pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
 			pfn, ret, page->flags);
-		/*
-		 * We know that soft_offline_huge_page() tries to migrate
-		 * only one hugepage pointed to by hpage, so we need not
-		 * run through the pagelist here.
-		 */
-		putback_active_hugepage(hpage);
+		if (!list_empty(&pagelist))
+			putback_movable_pages(&pagelist);
 		if (ret > 0)
 			ret = -EIO;
 	} else {
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/memory_hotplug.c linux-libre-4.9.52-gnu/mm/memory_hotplug.c
--- linux-libre-4.9-gnu/mm/memory_hotplug.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/memory_hotplug.c	2017-09-27 08:40:05.000000000 -0400
@@ -1033,36 +1033,39 @@ static void node_states_set_node(int nod
 	node_set_state(node, N_MEMORY);
 }
 
-int zone_can_shift(unsigned long pfn, unsigned long nr_pages,
-		   enum zone_type target)
+bool zone_can_shift(unsigned long pfn, unsigned long nr_pages,
+		   enum zone_type target, int *zone_shift)
 {
 	struct zone *zone = page_zone(pfn_to_page(pfn));
 	enum zone_type idx = zone_idx(zone);
 	int i;
 
+	*zone_shift = 0;
+
 	if (idx < target) {
 		/* pages must be at end of current zone */
 		if (pfn + nr_pages != zone_end_pfn(zone))
-			return 0;
+			return false;
 
 		/* no zones in use between current zone and target */
 		for (i = idx + 1; i < target; i++)
 			if (zone_is_initialized(zone - idx + i))
-				return 0;
+				return false;
 	}
 
 	if (target < idx) {
 		/* pages must be at beginning of current zone */
 		if (pfn != zone->zone_start_pfn)
-			return 0;
+			return false;
 
 		/* no zones in use between current zone and target */
 		for (i = target + 1; i < idx; i++)
 			if (zone_is_initialized(zone - idx + i))
-				return 0;
+				return false;
 	}
 
-	return target - idx;
+	*zone_shift = target - idx;
+	return true;
 }
 
 /* Must be protected by mem_hotplug_begin() */
@@ -1089,10 +1092,13 @@ int __ref online_pages(unsigned long pfn
 	    !can_online_high_movable(zone))
 		return -EINVAL;
 
-	if (online_type == MMOP_ONLINE_KERNEL)
-		zone_shift = zone_can_shift(pfn, nr_pages, ZONE_NORMAL);
-	else if (online_type == MMOP_ONLINE_MOVABLE)
-		zone_shift = zone_can_shift(pfn, nr_pages, ZONE_MOVABLE);
+	if (online_type == MMOP_ONLINE_KERNEL) {
+		if (!zone_can_shift(pfn, nr_pages, ZONE_NORMAL, &zone_shift))
+			return -EINVAL;
+	} else if (online_type == MMOP_ONLINE_MOVABLE) {
+		if (!zone_can_shift(pfn, nr_pages, ZONE_MOVABLE, &zone_shift))
+			return -EINVAL;
+	}
 
 	zone = move_pfn_range(zone_shift, pfn, pfn + nr_pages);
 	if (!zone)
@@ -1477,17 +1483,20 @@ bool is_mem_section_removable(unsigned l
 }
 
 /*
- * Confirm all pages in a range [start, end) is belongs to the same zone.
+ * Confirm all pages in a range [start, end) belong to the same zone.
+ * When true, return its valid [start, end).
  */
-int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn)
+int test_pages_in_a_zone(unsigned long start_pfn, unsigned long end_pfn,
+			 unsigned long *valid_start, unsigned long *valid_end)
 {
 	unsigned long pfn, sec_end_pfn;
+	unsigned long start, end;
 	struct zone *zone = NULL;
 	struct page *page;
 	int i;
-	for (pfn = start_pfn, sec_end_pfn = SECTION_ALIGN_UP(start_pfn);
+	for (pfn = start_pfn, sec_end_pfn = SECTION_ALIGN_UP(start_pfn + 1);
 	     pfn < end_pfn;
-	     pfn = sec_end_pfn + 1, sec_end_pfn += PAGES_PER_SECTION) {
+	     pfn = sec_end_pfn, sec_end_pfn += PAGES_PER_SECTION) {
 		/* Make sure the memory section is present first */
 		if (!present_section_nr(pfn_to_section_nr(pfn)))
 			continue;
@@ -1503,10 +1512,20 @@ int test_pages_in_a_zone(unsigned long s
 			page = pfn_to_page(pfn + i);
 			if (zone && page_zone(page) != zone)
 				return 0;
+			if (!zone)
+				start = pfn + i;
 			zone = page_zone(page);
+			end = pfn + MAX_ORDER_NR_PAGES;
 		}
 	}
-	return 1;
+
+	if (zone) {
+		*valid_start = start;
+		*valid_end = end;
+		return 1;
+	} else {
+		return 0;
+	}
 }
 
 /*
@@ -1853,6 +1872,7 @@ static int __ref __offline_pages(unsigne
 	long offlined_pages;
 	int ret, drain, retry_max, node;
 	unsigned long flags;
+	unsigned long valid_start, valid_end;
 	struct zone *zone;
 	struct memory_notify arg;
 
@@ -1863,10 +1883,10 @@ static int __ref __offline_pages(unsigne
 		return -EINVAL;
 	/* This makes hotplug much easier...and readable.
 	   we assume this for now. .*/
-	if (!test_pages_in_a_zone(start_pfn, end_pfn))
+	if (!test_pages_in_a_zone(start_pfn, end_pfn, &valid_start, &valid_end))
 		return -EINVAL;
 
-	zone = page_zone(pfn_to_page(start_pfn));
+	zone = page_zone(pfn_to_page(valid_start));
 	node = zone_to_nid(zone);
 	nr_pages = end_pfn - start_pfn;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/mempolicy.c linux-libre-4.9.52-gnu/mm/mempolicy.c
--- linux-libre-4.9-gnu/mm/mempolicy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/mempolicy.c	2017-09-27 08:40:05.000000000 -0400
@@ -926,11 +926,6 @@ static long do_get_mempolicy(int *policy
 		*policy |= (pol->flags & MPOL_MODE_FLAGS);
 	}
 
-	if (vma) {
-		up_read(&current->mm->mmap_sem);
-		vma = NULL;
-	}
-
 	err = 0;
 	if (nmask) {
 		if (mpol_store_user_nodemask(pol)) {
@@ -1524,7 +1519,6 @@ COMPAT_SYSCALL_DEFINE5(get_mempolicy, in
 COMPAT_SYSCALL_DEFINE3(set_mempolicy, int, mode, compat_ulong_t __user *, nmask,
 		       compat_ulong_t, maxnode)
 {
-	long err = 0;
 	unsigned long __user *nm = NULL;
 	unsigned long nr_bits, alloc_size;
 	DECLARE_BITMAP(bm, MAX_NUMNODES);
@@ -1533,14 +1527,13 @@ COMPAT_SYSCALL_DEFINE3(set_mempolicy, in
 	alloc_size = ALIGN(nr_bits, BITS_PER_LONG) / 8;
 
 	if (nmask) {
-		err = compat_get_bitmap(bm, nmask, nr_bits);
+		if (compat_get_bitmap(bm, nmask, nr_bits))
+			return -EFAULT;
 		nm = compat_alloc_user_space(alloc_size);
-		err |= copy_to_user(nm, bm, alloc_size);
+		if (copy_to_user(nm, bm, alloc_size))
+			return -EFAULT;
 	}
 
-	if (err)
-		return -EFAULT;
-
 	return sys_set_mempolicy(mode, nm, nr_bits+1);
 }
 
@@ -1548,7 +1541,6 @@ COMPAT_SYSCALL_DEFINE6(mbind, compat_ulo
 		       compat_ulong_t, mode, compat_ulong_t __user *, nmask,
 		       compat_ulong_t, maxnode, compat_ulong_t, flags)
 {
-	long err = 0;
 	unsigned long __user *nm = NULL;
 	unsigned long nr_bits, alloc_size;
 	nodemask_t bm;
@@ -1557,14 +1549,13 @@ COMPAT_SYSCALL_DEFINE6(mbind, compat_ulo
 	alloc_size = ALIGN(nr_bits, BITS_PER_LONG) / 8;
 
 	if (nmask) {
-		err = compat_get_bitmap(nodes_addr(bm), nmask, nr_bits);
+		if (compat_get_bitmap(nodes_addr(bm), nmask, nr_bits))
+			return -EFAULT;
 		nm = compat_alloc_user_space(alloc_size);
-		err |= copy_to_user(nm, nodes_addr(bm), alloc_size);
+		if (copy_to_user(nm, nodes_addr(bm), alloc_size))
+			return -EFAULT;
 	}
 
-	if (err)
-		return -EFAULT;
-
 	return sys_mbind(start, len, mode, nm, nr_bits+1, flags);
 }
 
@@ -2023,8 +2014,8 @@ retry_cpuset:
 
 	nmask = policy_nodemask(gfp, pol);
 	zl = policy_zonelist(gfp, pol, node);
-	mpol_cond_put(pol);
 	page = __alloc_pages_nodemask(gfp, order, zl, nmask);
+	mpol_cond_put(pol);
 out:
 	if (unlikely(!page && read_mems_allowed_retry(cpuset_mems_cookie)))
 		goto retry_cpuset;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/migrate.c linux-libre-4.9.52-gnu/mm/migrate.c
--- linux-libre-4.9-gnu/mm/migrate.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/migrate.c	2017-09-27 08:40:05.000000000 -0400
@@ -40,6 +40,7 @@
 #include <linux/mmu_notifier.h>
 #include <linux/page_idle.h>
 #include <linux/page_owner.h>
+#include <linux/ptrace.h>
 
 #include <asm/tlbflush.h>
 
@@ -168,8 +169,6 @@ void putback_movable_pages(struct list_h
 			continue;
 		}
 		list_del(&page->lru);
-		dec_node_page_state(page, NR_ISOLATED_ANON +
-				page_is_file_cache(page));
 		/*
 		 * We isolated non-lru movable page so here we can use
 		 * __PageMovable because LRU page's mapping cannot have
@@ -185,6 +184,8 @@ void putback_movable_pages(struct list_h
 			unlock_page(page);
 			put_page(page);
 		} else {
+			dec_node_page_state(page, NR_ISOLATED_ANON +
+					page_is_file_cache(page));
 			putback_lru_page(page);
 		}
 	}
@@ -1121,8 +1122,15 @@ out:
 		 * restored.
 		 */
 		list_del(&page->lru);
-		dec_node_page_state(page, NR_ISOLATED_ANON +
-				page_is_file_cache(page));
+
+		/*
+		 * Compaction can migrate also non-LRU pages which are
+		 * not accounted to NR_ISOLATED_*. They can be recognized
+		 * as __PageMovable
+		 */
+		if (likely(!__PageMovable(page)))
+			dec_node_page_state(page, NR_ISOLATED_ANON +
+					page_is_file_cache(page));
 	}
 
 	/*
@@ -1656,7 +1664,6 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid,
 		const int __user *, nodes,
 		int __user *, status, int, flags)
 {
-	const struct cred *cred = current_cred(), *tcred;
 	struct task_struct *task;
 	struct mm_struct *mm;
 	int err;
@@ -1680,14 +1687,9 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid,
 
 	/*
 	 * Check if this process has the right to modify the specified
-	 * process. The right exists if the process has administrative
-	 * capabilities, superuser privileges or the same
-	 * userid as the target process.
+	 * process. Use the regular "ptrace_may_access()" checks.
 	 */
-	tcred = __task_cred(task);
-	if (!uid_eq(cred->euid, tcred->suid) && !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->uid,  tcred->suid) && !uid_eq(cred->uid,  tcred->uid) &&
-	    !capable(CAP_SYS_NICE)) {
+	if (!ptrace_may_access(task, PTRACE_MODE_READ_REALCREDS)) {
 		rcu_read_unlock();
 		err = -EPERM;
 		goto out;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/mlock.c linux-libre-4.9.52-gnu/mm/mlock.c
--- linux-libre-4.9-gnu/mm/mlock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/mlock.c	2017-09-27 08:40:05.000000000 -0400
@@ -285,7 +285,7 @@ static void __munlock_pagevec(struct pag
 {
 	int i;
 	int nr = pagevec_count(pvec);
-	int delta_munlocked;
+	int delta_munlocked = -nr;
 	struct pagevec pvec_putback;
 	int pgrescued = 0;
 
@@ -305,6 +305,8 @@ static void __munlock_pagevec(struct pag
 				continue;
 			else
 				__munlock_isolation_failed(page);
+		} else {
+			delta_munlocked++;
 		}
 
 		/*
@@ -316,7 +318,6 @@ static void __munlock_pagevec(struct pag
 		pagevec_add(&pvec_putback, pvec->pages[i]);
 		pvec->pages[i] = NULL;
 	}
-	delta_munlocked = -nr + pagevec_count(&pvec_putback);
 	__mod_zone_page_state(zone, NR_MLOCK, delta_munlocked);
 	spin_unlock_irq(zone_lru_lock(zone));
 
@@ -441,7 +442,7 @@ void munlock_vma_pages_range(struct vm_a
 
 	while (start < end) {
 		struct page *page;
-		unsigned int page_mask;
+		unsigned int page_mask = 0;
 		unsigned long page_increm;
 		struct pagevec pvec;
 		struct zone *zone;
@@ -455,8 +456,7 @@ void munlock_vma_pages_range(struct vm_a
 		 * suits munlock very well (and if somehow an abnormal page
 		 * has sneaked into the range, we won't oops here: great).
 		 */
-		page = follow_page_mask(vma, start, FOLL_GET | FOLL_DUMP,
-				&page_mask);
+		page = follow_page(vma, start, FOLL_GET | FOLL_DUMP);
 
 		if (page && !IS_ERR(page)) {
 			if (PageTransTail(page)) {
@@ -467,8 +467,8 @@ void munlock_vma_pages_range(struct vm_a
 				/*
 				 * Any THP page found by follow_page_mask() may
 				 * have gotten split before reaching
-				 * munlock_vma_page(), so we need to recompute
-				 * the page_mask here.
+				 * munlock_vma_page(), so we need to compute
+				 * the page_mask here instead.
 				 */
 				page_mask = munlock_vma_page(page);
 				unlock_page(page);
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/mmap.c linux-libre-4.9.52-gnu/mm/mmap.c
--- linux-libre-4.9-gnu/mm/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -183,6 +183,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	unsigned long retval;
 	unsigned long newbrk, oldbrk;
 	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *next;
 	unsigned long min_brk;
 	bool populate;
 
@@ -228,7 +229,8 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	}
 
 	/* Check against existing mmap mappings. */
-	if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE))
+	next = find_vma(mm, oldbrk);
+	if (next && newbrk + PAGE_SIZE > vm_start_gap(next))
 		goto out;
 
 	/* Ok, looks good - let it rip. */
@@ -251,10 +253,22 @@ out:
 
 static long vma_compute_subtree_gap(struct vm_area_struct *vma)
 {
-	unsigned long max, subtree_gap;
-	max = vma->vm_start;
-	if (vma->vm_prev)
-		max -= vma->vm_prev->vm_end;
+	unsigned long max, prev_end, subtree_gap;
+
+	/*
+	 * Note: in the rare case of a VM_GROWSDOWN above a VM_GROWSUP, we
+	 * allow two stack_guard_gaps between them here, and when choosing
+	 * an unmapped area; whereas when expanding we only require one.
+	 * That's a little inconsistent, but keeps the code here simpler.
+	 */
+	max = vm_start_gap(vma);
+	if (vma->vm_prev) {
+		prev_end = vm_end_gap(vma->vm_prev);
+		if (max > prev_end)
+			max -= prev_end;
+		else
+			max = 0;
+	}
 	if (vma->vm_rb.rb_left) {
 		subtree_gap = rb_entry(vma->vm_rb.rb_left,
 				struct vm_area_struct, vm_rb)->rb_subtree_gap;
@@ -350,7 +364,7 @@ static void validate_mm(struct mm_struct
 			anon_vma_unlock_read(anon_vma);
 		}
 
-		highest_address = vma->vm_end;
+		highest_address = vm_end_gap(vma);
 		vma = vma->vm_next;
 		i++;
 	}
@@ -539,7 +553,7 @@ void __vma_link_rb(struct mm_struct *mm,
 	if (vma->vm_next)
 		vma_gap_update(vma->vm_next);
 	else
-		mm->highest_vm_end = vma->vm_end;
+		mm->highest_vm_end = vm_end_gap(vma);
 
 	/*
 	 * vma->vm_prev wasn't known when we followed the rbtree to find the
@@ -854,7 +868,7 @@ again:
 			vma_gap_update(vma);
 		if (end_changed) {
 			if (!next)
-				mm->highest_vm_end = end;
+				mm->highest_vm_end = vm_end_gap(vma);
 			else if (!adjust_next)
 				vma_gap_update(next);
 		}
@@ -939,7 +953,7 @@ again:
 			 * mm->highest_vm_end doesn't need any update
 			 * in remove_next == 1 case.
 			 */
-			VM_WARN_ON(mm->highest_vm_end != end);
+			VM_WARN_ON(mm->highest_vm_end != vm_end_gap(vma));
 		}
 	}
 	if (insert && file)
@@ -1783,7 +1797,7 @@ unsigned long unmapped_area(struct vm_un
 
 	while (true) {
 		/* Visit left subtree if it looks promising */
-		gap_end = vma->vm_start;
+		gap_end = vm_start_gap(vma);
 		if (gap_end >= low_limit && vma->vm_rb.rb_left) {
 			struct vm_area_struct *left =
 				rb_entry(vma->vm_rb.rb_left,
@@ -1794,12 +1808,13 @@ unsigned long unmapped_area(struct vm_un
 			}
 		}
 
-		gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
+		gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0;
 check_current:
 		/* Check if current node has a suitable gap */
 		if (gap_start > high_limit)
 			return -ENOMEM;
-		if (gap_end >= low_limit && gap_end - gap_start >= length)
+		if (gap_end >= low_limit &&
+		    gap_end > gap_start && gap_end - gap_start >= length)
 			goto found;
 
 		/* Visit right subtree if it looks promising */
@@ -1821,8 +1836,8 @@ check_current:
 			vma = rb_entry(rb_parent(prev),
 				       struct vm_area_struct, vm_rb);
 			if (prev == vma->vm_rb.rb_left) {
-				gap_start = vma->vm_prev->vm_end;
-				gap_end = vma->vm_start;
+				gap_start = vm_end_gap(vma->vm_prev);
+				gap_end = vm_start_gap(vma);
 				goto check_current;
 			}
 		}
@@ -1886,7 +1901,7 @@ unsigned long unmapped_area_topdown(stru
 
 	while (true) {
 		/* Visit right subtree if it looks promising */
-		gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
+		gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0;
 		if (gap_start <= high_limit && vma->vm_rb.rb_right) {
 			struct vm_area_struct *right =
 				rb_entry(vma->vm_rb.rb_right,
@@ -1899,10 +1914,11 @@ unsigned long unmapped_area_topdown(stru
 
 check_current:
 		/* Check if current node has a suitable gap */
-		gap_end = vma->vm_start;
+		gap_end = vm_start_gap(vma);
 		if (gap_end < low_limit)
 			return -ENOMEM;
-		if (gap_start <= high_limit && gap_end - gap_start >= length)
+		if (gap_start <= high_limit &&
+		    gap_end > gap_start && gap_end - gap_start >= length)
 			goto found;
 
 		/* Visit left subtree if it looks promising */
@@ -1925,7 +1941,7 @@ check_current:
 				       struct vm_area_struct, vm_rb);
 			if (prev == vma->vm_rb.rb_right) {
 				gap_start = vma->vm_prev ?
-					vma->vm_prev->vm_end : 0;
+					vm_end_gap(vma->vm_prev) : 0;
 				goto check_current;
 			}
 		}
@@ -1963,7 +1979,7 @@ arch_get_unmapped_area(struct file *filp
 		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	struct vm_unmapped_area_info info;
 
 	if (len > TASK_SIZE - mmap_min_addr)
@@ -1974,9 +1990,10 @@ arch_get_unmapped_area(struct file *filp
 
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
+		vma = find_vma_prev(mm, addr, &prev);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			return addr;
 	}
 
@@ -1999,7 +2016,7 @@ arch_get_unmapped_area_topdown(struct fi
 			  const unsigned long len, const unsigned long pgoff,
 			  const unsigned long flags)
 {
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
@@ -2014,9 +2031,10 @@ arch_get_unmapped_area_topdown(struct fi
 	/* requesting a specific address */
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
+		vma = find_vma_prev(mm, addr, &prev);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)) &&
+				(!prev || addr >= vm_end_gap(prev)))
 			return addr;
 	}
 
@@ -2151,21 +2169,19 @@ find_vma_prev(struct mm_struct *mm, unsi
  * update accounting. This is shared with both the
  * grow-up and grow-down cases.
  */
-static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, unsigned long grow)
+static int acct_stack_growth(struct vm_area_struct *vma,
+			     unsigned long size, unsigned long grow)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	struct rlimit *rlim = current->signal->rlim;
-	unsigned long new_start, actual_size;
+	unsigned long new_start;
 
 	/* address space limit tests */
 	if (!may_expand_vm(mm, vma->vm_flags, grow))
 		return -ENOMEM;
 
 	/* Stack limit test */
-	actual_size = size;
-	if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
-		actual_size -= PAGE_SIZE;
-	if (actual_size > READ_ONCE(rlim[RLIMIT_STACK].rlim_cur))
+	if (size > READ_ONCE(rlim[RLIMIT_STACK].rlim_cur))
 		return -ENOMEM;
 
 	/* mlock limit tests */
@@ -2203,16 +2219,32 @@ static int acct_stack_growth(struct vm_a
 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 {
 	struct mm_struct *mm = vma->vm_mm;
+	struct vm_area_struct *next;
+	unsigned long gap_addr;
 	int error = 0;
 
 	if (!(vma->vm_flags & VM_GROWSUP))
 		return -EFAULT;
 
-	/* Guard against wrapping around to address 0. */
-	if (address < PAGE_ALIGN(address+4))
-		address = PAGE_ALIGN(address+4);
-	else
+	/* Guard against exceeding limits of the address space. */
+	address &= PAGE_MASK;
+	if (address >= (TASK_SIZE & PAGE_MASK))
 		return -ENOMEM;
+	address += PAGE_SIZE;
+
+	/* Enforce stack_guard_gap */
+	gap_addr = address + stack_guard_gap;
+
+	/* Guard against overflow */
+	if (gap_addr < address || gap_addr > TASK_SIZE)
+		gap_addr = TASK_SIZE;
+
+	next = vma->vm_next;
+	if (next && next->vm_start < gap_addr) {
+		if (!(next->vm_flags & VM_GROWSUP))
+			return -ENOMEM;
+		/* Check that both stack segments have the same anon_vma? */
+	}
 
 	/* We must make sure the anon_vma is allocated. */
 	if (unlikely(anon_vma_prepare(vma)))
@@ -2257,7 +2289,7 @@ int expand_upwards(struct vm_area_struct
 				if (vma->vm_next)
 					vma_gap_update(vma->vm_next);
 				else
-					mm->highest_vm_end = address;
+					mm->highest_vm_end = vm_end_gap(vma);
 				spin_unlock(&mm->page_table_lock);
 
 				perf_event_mmap(vma);
@@ -2278,6 +2310,8 @@ int expand_downwards(struct vm_area_stru
 				   unsigned long address)
 {
 	struct mm_struct *mm = vma->vm_mm;
+	struct vm_area_struct *prev;
+	unsigned long gap_addr;
 	int error;
 
 	address &= PAGE_MASK;
@@ -2285,6 +2319,17 @@ int expand_downwards(struct vm_area_stru
 	if (error)
 		return error;
 
+	/* Enforce stack_guard_gap */
+	gap_addr = address - stack_guard_gap;
+	if (gap_addr > address)
+		return -ENOMEM;
+	prev = vma->vm_prev;
+	if (prev && prev->vm_end > gap_addr) {
+		if (!(prev->vm_flags & VM_GROWSDOWN))
+			return -ENOMEM;
+		/* Check that both stack segments have the same anon_vma? */
+	}
+
 	/* We must make sure the anon_vma is allocated. */
 	if (unlikely(anon_vma_prepare(vma)))
 		return -ENOMEM;
@@ -2339,28 +2384,25 @@ int expand_downwards(struct vm_area_stru
 	return error;
 }
 
-/*
- * Note how expand_stack() refuses to expand the stack all the way to
- * abut the next virtual mapping, *unless* that mapping itself is also
- * a stack mapping. We want to leave room for a guard page, after all
- * (the guard page itself is not added here, that is done by the
- * actual page faulting logic)
- *
- * This matches the behavior of the guard page logic (see mm/memory.c:
- * check_stack_guard_page()), which only allows the guard page to be
- * removed under these circumstances.
- */
+/* enforced gap between the expanding stack and other mappings. */
+unsigned long stack_guard_gap = 256UL<<PAGE_SHIFT;
+
+static int __init cmdline_parse_stack_guard_gap(char *p)
+{
+	unsigned long val;
+	char *endptr;
+
+	val = simple_strtoul(p, &endptr, 10);
+	if (!*endptr)
+		stack_guard_gap = val << PAGE_SHIFT;
+
+	return 0;
+}
+__setup("stack_guard_gap=", cmdline_parse_stack_guard_gap);
+
 #ifdef CONFIG_STACK_GROWSUP
 int expand_stack(struct vm_area_struct *vma, unsigned long address)
 {
-	struct vm_area_struct *next;
-
-	address &= PAGE_MASK;
-	next = vma->vm_next;
-	if (next && next->vm_start == address + PAGE_SIZE) {
-		if (!(next->vm_flags & VM_GROWSUP))
-			return -ENOMEM;
-	}
 	return expand_upwards(vma, address);
 }
 
@@ -2382,14 +2424,6 @@ find_extend_vma(struct mm_struct *mm, un
 #else
 int expand_stack(struct vm_area_struct *vma, unsigned long address)
 {
-	struct vm_area_struct *prev;
-
-	address &= PAGE_MASK;
-	prev = vma->vm_prev;
-	if (prev && prev->vm_end == address) {
-		if (!(prev->vm_flags & VM_GROWSDOWN))
-			return -ENOMEM;
-	}
 	return expand_downwards(vma, address);
 }
 
@@ -2487,7 +2521,7 @@ detach_vmas_to_be_unmapped(struct mm_str
 		vma->vm_prev = prev;
 		vma_gap_update(vma);
 	} else
-		mm->highest_vm_end = prev ? prev->vm_end : 0;
+		mm->highest_vm_end = prev ? vm_end_gap(prev) : 0;
 	tail_vma->vm_next = NULL;
 
 	/* Kill the cache */
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/mprotect.c linux-libre-4.9.52-gnu/mm/mprotect.c
--- linux-libre-4.9-gnu/mm/mprotect.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/mprotect.c	2017-09-27 08:40:05.000000000 -0400
@@ -74,6 +74,7 @@ static unsigned long change_pte_range(st
 	if (!pte)
 		return 0;
 
+	flush_tlb_batched_pending(vma->vm_mm);
 	arch_enter_lazy_mmu_mode();
 	do {
 		oldpte = *pte;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/mremap.c linux-libre-4.9.52-gnu/mm/mremap.c
--- linux-libre-4.9-gnu/mm/mremap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/mremap.c	2017-09-27 08:40:05.000000000 -0400
@@ -142,6 +142,7 @@ static void move_ptes(struct vm_area_str
 	new_ptl = pte_lockptr(mm, new_pmd);
 	if (new_ptl != old_ptl)
 		spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
+	flush_tlb_batched_pending(vma->vm_mm);
 	arch_enter_lazy_mmu_mode();
 
 	for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE,
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/nobootmem.c linux-libre-4.9.52-gnu/mm/nobootmem.c
--- linux-libre-4.9-gnu/mm/nobootmem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/nobootmem.c	2017-09-27 08:40:05.000000000 -0400
@@ -146,22 +146,6 @@ static unsigned long __init free_low_mem
 				NULL)
 		count += __free_memory_core(start, end);
 
-#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-	{
-		phys_addr_t size;
-
-		/* Free memblock.reserved array if it was allocated */
-		size = get_allocated_memblock_reserved_regions_info(&start);
-		if (size)
-			count += __free_memory_core(start, start + size);
-
-		/* Free memblock.memory array if it was allocated */
-		size = get_allocated_memblock_memory_regions_info(&start);
-		if (size)
-			count += __free_memory_core(start, start + size);
-	}
-#endif
-
 	return count;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/nommu.c linux-libre-4.9.52-gnu/mm/nommu.c
--- linux-libre-4.9-gnu/mm/nommu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/nommu.c	2017-09-27 08:40:05.000000000 -0400
@@ -1808,7 +1808,7 @@ void filemap_map_pages(struct fault_env
 }
 EXPORT_SYMBOL(filemap_map_pages);
 
-static int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
+int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
 		unsigned long addr, void *buf, int len, unsigned int gup_flags)
 {
 	struct vm_area_struct *vma;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/page_alloc.c linux-libre-4.9.52-gnu/mm/page_alloc.c
--- linux-libre-4.9-gnu/mm/page_alloc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/page_alloc.c	2017-09-27 08:40:05.000000000 -0400
@@ -286,6 +286,26 @@ int page_group_by_mobility_disabled __re
 #ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
 static inline void reset_deferred_meminit(pg_data_t *pgdat)
 {
+	unsigned long max_initialise;
+	unsigned long reserved_lowmem;
+
+	/*
+	 * Initialise at least 2G of a node but also take into account that
+	 * two large system hashes that can take up 1GB for 0.25TB/node.
+	 */
+	max_initialise = max(2UL << (30 - PAGE_SHIFT),
+		(pgdat->node_spanned_pages >> 8));
+
+	/*
+	 * Compensate the all the memblock reservations (e.g. crash kernel)
+	 * from the initial estimation to make sure we will initialize enough
+	 * memory to boot.
+	 */
+	reserved_lowmem = memblock_reserved_memory_within(pgdat->node_start_pfn,
+			pgdat->node_start_pfn + max_initialise);
+	max_initialise += reserved_lowmem;
+
+	pgdat->static_init_size = min(max_initialise, pgdat->node_spanned_pages);
 	pgdat->first_deferred_pfn = ULONG_MAX;
 }
 
@@ -308,20 +328,11 @@ static inline bool update_defer_init(pg_
 				unsigned long pfn, unsigned long zone_end,
 				unsigned long *nr_initialised)
 {
-	unsigned long max_initialise;
-
 	/* Always populate low zones for address-contrained allocations */
 	if (zone_end < pgdat_end_pfn(pgdat))
 		return true;
-	/*
-	 * Initialise at least 2G of a node but also take into account that
-	 * two large system hashes that can take up 1GB for 0.25TB/node.
-	 */
-	max_initialise = max(2UL << (30 - PAGE_SHIFT),
-		(pgdat->node_spanned_pages >> 8));
-
 	(*nr_initialised)++;
-	if ((*nr_initialised > max_initialise) &&
+	if ((*nr_initialised > pgdat->static_init_size) &&
 	    (pfn & (PAGES_PER_SECTION - 1)) == 0) {
 		pgdat->first_deferred_pfn = pfn;
 		return false;
@@ -1576,6 +1587,10 @@ void __init page_alloc_init_late(void)
 	/* Reinit limits that are based on free pages after the kernel is up */
 	files_maxfiles_init();
 #endif
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+	/* Discard memblock private memory */
+	memblock_discard();
+#endif
 
 	for_each_populated_zone(zone)
 		set_zone_contiguous(zone);
@@ -1864,14 +1879,14 @@ int move_freepages(struct zone *zone,
 #endif
 
 	for (page = start_page; page <= end_page;) {
-		/* Make sure we are not inadvertently changing nodes */
-		VM_BUG_ON_PAGE(page_to_nid(page) != zone_to_nid(zone), page);
-
 		if (!pfn_valid_within(page_to_pfn(page))) {
 			page++;
 			continue;
 		}
 
+		/* Make sure we are not inadvertently changing nodes */
+		VM_BUG_ON_PAGE(page_to_nid(page) != zone_to_nid(zone), page);
+
 		if (!PageBuddy(page)) {
 			page++;
 			continue;
@@ -2085,13 +2100,25 @@ static void unreserve_highatomic_pageblo
 				continue;
 
 			/*
-			 * It should never happen but changes to locking could
-			 * inadvertently allow a per-cpu drain to add pages
-			 * to MIGRATE_HIGHATOMIC while unreserving so be safe
-			 * and watch for underflows.
+			 * In page freeing path, migratetype change is racy so
+			 * we can counter several free pages in a pageblock
+			 * in this loop althoug we changed the pageblock type
+			 * from highatomic to ac->migratetype. So we should
+			 * adjust the count once.
 			 */
-			zone->nr_reserved_highatomic -= min(pageblock_nr_pages,
-				zone->nr_reserved_highatomic);
+			if (get_pageblock_migratetype(page) ==
+							MIGRATE_HIGHATOMIC) {
+				/*
+				 * It should never happen but changes to
+				 * locking could inadvertently allow a per-cpu
+				 * drain to add pages to MIGRATE_HIGHATOMIC
+				 * while unreserving so be safe and watch for
+				 * underflows.
+				 */
+				zone->nr_reserved_highatomic -= min(
+						pageblock_nr_pages,
+						zone->nr_reserved_highatomic);
+			}
 
 			/*
 			 * Convert to ac->migratetype and avoid the normal
@@ -2192,7 +2219,7 @@ static int rmqueue_bulk(struct zone *zon
 			unsigned long count, struct list_head *list,
 			int migratetype, bool cold)
 {
-	int i;
+	int i, alloced = 0;
 
 	spin_lock(&zone->lock);
 	for (i = 0; i < count; ++i) {
@@ -2217,13 +2244,21 @@ static int rmqueue_bulk(struct zone *zon
 		else
 			list_add_tail(&page->lru, list);
 		list = &page->lru;
+		alloced++;
 		if (is_migrate_cma(get_pcppage_migratetype(page)))
 			__mod_zone_page_state(zone, NR_FREE_CMA_PAGES,
 					      -(1 << order));
 	}
+
+	/*
+	 * i pages were removed from the buddy list even if some leak due
+	 * to check_pcp_refill failing so adjust NR_FREE_PAGES based
+	 * on i. Do not confuse with 'alloced' which is the number of
+	 * pages added to the pcp list.
+	 */
 	__mod_zone_page_state(zone, NR_FREE_PAGES, -(i << order));
 	spin_unlock(&zone->lock);
-	return i;
+	return alloced;
 }
 
 #ifdef CONFIG_NUMA
@@ -2850,7 +2885,7 @@ bool zone_watermark_ok_safe(struct zone
 #ifdef CONFIG_NUMA
 static bool zone_allows_reclaim(struct zone *local_zone, struct zone *zone)
 {
-	return node_distance(zone_to_nid(local_zone), zone_to_nid(zone)) <
+	return node_distance(zone_to_nid(local_zone), zone_to_nid(zone)) <=
 				RECLAIM_DISTANCE;
 }
 #else	/* CONFIG_NUMA */
@@ -3117,6 +3152,7 @@ __alloc_pages_direct_compact(gfp_t gfp_m
 		enum compact_priority prio, enum compact_result *compact_result)
 {
 	struct page *page;
+	unsigned int noreclaim_flag = current->flags & PF_MEMALLOC;
 
 	if (!order)
 		return NULL;
@@ -3124,7 +3160,7 @@ __alloc_pages_direct_compact(gfp_t gfp_m
 	current->flags |= PF_MEMALLOC;
 	*compact_result = try_to_compact_pages(gfp_mask, order, alloc_flags, ac,
 									prio);
-	current->flags &= ~PF_MEMALLOC;
+	current->flags = (current->flags & ~PF_MEMALLOC) | noreclaim_flag;
 
 	if (*compact_result <= COMPACT_INACTIVE)
 		return NULL;
@@ -3494,12 +3530,13 @@ __alloc_pages_slowpath(gfp_t gfp_mask, u
 	struct page *page = NULL;
 	unsigned int alloc_flags;
 	unsigned long did_some_progress;
-	enum compact_priority compact_priority = DEF_COMPACT_PRIORITY;
+	enum compact_priority compact_priority;
 	enum compact_result compact_result;
-	int compaction_retries = 0;
-	int no_progress_loops = 0;
+	int compaction_retries;
+	int no_progress_loops;
 	unsigned long alloc_start = jiffies;
 	unsigned int stall_timeout = 10 * HZ;
+	unsigned int cpuset_mems_cookie;
 
 	/*
 	 * In the slowpath, we sanity check order to avoid ever trying to
@@ -3520,6 +3557,23 @@ __alloc_pages_slowpath(gfp_t gfp_mask, u
 				(__GFP_ATOMIC|__GFP_DIRECT_RECLAIM)))
 		gfp_mask &= ~__GFP_ATOMIC;
 
+retry_cpuset:
+	compaction_retries = 0;
+	no_progress_loops = 0;
+	compact_priority = DEF_COMPACT_PRIORITY;
+	cpuset_mems_cookie = read_mems_allowed_begin();
+	/*
+	 * We need to recalculate the starting point for the zonelist iterator
+	 * because we might have used different nodemask in the fast path, or
+	 * there was a cpuset modification and we are retrying - otherwise we
+	 * could end up iterating over non-eligible zones endlessly.
+	 */
+	ac->preferred_zoneref = first_zones_zonelist(ac->zonelist,
+					ac->high_zoneidx, ac->nodemask);
+	if (!ac->preferred_zoneref->zone)
+		goto nopage;
+
+
 	/*
 	 * The fast path uses conservative alloc_flags to succeed only until
 	 * kswapd needs to be woken up, and to avoid the cost of setting up
@@ -3679,6 +3733,13 @@ retry:
 				&compaction_retries))
 		goto retry;
 
+	/*
+	 * It's possible we raced with cpuset update so the OOM would be
+	 * premature (see below the nopage: label for full explanation).
+	 */
+	if (read_mems_allowed_retry(cpuset_mems_cookie))
+		goto retry_cpuset;
+
 	/* Reclaim has failed us, start killing things */
 	page = __alloc_pages_may_oom(gfp_mask, order, ac, &did_some_progress);
 	if (page)
@@ -3691,6 +3752,16 @@ retry:
 	}
 
 nopage:
+	/*
+	 * When updating a task's mems_allowed or mempolicy nodemask, it is
+	 * possible to race with parallel threads in such a way that our
+	 * allocation can fail while the mask is being updated. If we are about
+	 * to fail, check if the cpuset changed during allocation and if so,
+	 * retry.
+	 */
+	if (read_mems_allowed_retry(cpuset_mems_cookie))
+		goto retry_cpuset;
+
 	warn_alloc(gfp_mask,
 			"page allocation failure: order:%u", order);
 got_pg:
@@ -3705,7 +3776,6 @@ __alloc_pages_nodemask(gfp_t gfp_mask, u
 			struct zonelist *zonelist, nodemask_t *nodemask)
 {
 	struct page *page;
-	unsigned int cpuset_mems_cookie;
 	unsigned int alloc_flags = ALLOC_WMARK_LOW;
 	gfp_t alloc_mask = gfp_mask; /* The gfp_t that was actually used for allocation */
 	struct alloc_context ac = {
@@ -3742,9 +3812,6 @@ __alloc_pages_nodemask(gfp_t gfp_mask, u
 	if (IS_ENABLED(CONFIG_CMA) && ac.migratetype == MIGRATE_MOVABLE)
 		alloc_flags |= ALLOC_CMA;
 
-retry_cpuset:
-	cpuset_mems_cookie = read_mems_allowed_begin();
-
 	/* Dirty zone balancing only done in the fast path */
 	ac.spread_dirty_pages = (gfp_mask & __GFP_WRITE);
 
@@ -3755,8 +3822,13 @@ retry_cpuset:
 	 */
 	ac.preferred_zoneref = first_zones_zonelist(ac.zonelist,
 					ac.high_zoneidx, ac.nodemask);
-	if (!ac.preferred_zoneref) {
+	if (!ac.preferred_zoneref->zone) {
 		page = NULL;
+		/*
+		 * This might be due to race with cpuset_current_mems_allowed
+		 * update, so make sure we retry with original nodemask in the
+		 * slow path.
+		 */
 		goto no_zone;
 	}
 
@@ -3765,6 +3837,7 @@ retry_cpuset:
 	if (likely(page))
 		goto out;
 
+no_zone:
 	/*
 	 * Runtime PM, block IO and its error handling path can deadlock
 	 * because I/O on the device might not complete.
@@ -3776,21 +3849,10 @@ retry_cpuset:
 	 * Restore the original nodemask if it was potentially replaced with
 	 * &cpuset_current_mems_allowed to optimize the fast-path attempt.
 	 */
-	if (cpusets_enabled())
+	if (unlikely(ac.nodemask != nodemask))
 		ac.nodemask = nodemask;
-	page = __alloc_pages_slowpath(alloc_mask, order, &ac);
 
-no_zone:
-	/*
-	 * When updating a task's mems_allowed, it is possible to race with
-	 * parallel threads in such a way that an allocation can fail while
-	 * the mask is being updated. If a page allocation is about to fail,
-	 * check if the cpuset changed during allocation and if so, retry.
-	 */
-	if (unlikely(!page && read_mems_allowed_retry(cpuset_mems_cookie))) {
-		alloc_mask = gfp_mask;
-		goto retry_cpuset;
-	}
+	page = __alloc_pages_slowpath(alloc_mask, order, &ac);
 
 out:
 	if (memcg_kmem_enabled() && (gfp_mask & __GFP_ACCOUNT) && page &&
@@ -4311,13 +4373,13 @@ void show_free_areas(unsigned int filter
 			K(node_page_state(pgdat, NR_FILE_MAPPED)),
 			K(node_page_state(pgdat, NR_FILE_DIRTY)),
 			K(node_page_state(pgdat, NR_WRITEBACK)),
+			K(node_page_state(pgdat, NR_SHMEM)),
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 			K(node_page_state(pgdat, NR_SHMEM_THPS) * HPAGE_PMD_NR),
 			K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)
 					* HPAGE_PMD_NR),
 			K(node_page_state(pgdat, NR_ANON_THPS) * HPAGE_PMD_NR),
 #endif
-			K(node_page_state(pgdat, NR_SHMEM)),
 			K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
 			K(node_page_state(pgdat, NR_UNSTABLE_NFS)),
 			node_page_state(pgdat, NR_PAGES_SCANNED),
@@ -5876,7 +5938,6 @@ void __paginginit free_area_init_node(in
 	/* pg_data_t should be reset to zero when it's allocated */
 	WARN_ON(pgdat->nr_zones || pgdat->kswapd_classzone_idx);
 
-	reset_deferred_meminit(pgdat);
 	pgdat->node_id = nid;
 	pgdat->node_start_pfn = node_start_pfn;
 	pgdat->per_cpu_nodestats = NULL;
@@ -5898,6 +5959,7 @@ void __paginginit free_area_init_node(in
 		(unsigned long)pgdat->node_mem_map);
 #endif
 
+	reset_deferred_meminit(pgdat);
 	free_area_init_core(pgdat);
 }
 
@@ -6399,8 +6461,8 @@ unsigned long free_reserved_area(void *s
 	}
 
 	if (pages && s)
-		pr_info("Freeing %s memory: %ldK (%p - %p)\n",
-			s, pages << (PAGE_SHIFT - 10), start, end);
+		pr_info("Freeing %s memory: %ldK\n",
+			s, pages << (PAGE_SHIFT - 10));
 
 	return pages;
 }
@@ -7289,7 +7351,7 @@ int alloc_contig_range(unsigned long sta
 
 	/* Make sure the range is really isolated. */
 	if (test_pages_isolated(outer_start, end, false)) {
-		pr_info("%s: [%lx, %lx) PFNs busy\n",
+		pr_info_ratelimited("%s: [%lx, %lx) PFNs busy\n",
 			__func__, outer_start, end);
 		ret = -EBUSY;
 		goto done;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/percpu.c linux-libre-4.9.52-gnu/mm/percpu.c
--- linux-libre-4.9-gnu/mm/percpu.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/percpu.c	2017-09-27 08:40:05.000000000 -0400
@@ -1010,8 +1010,11 @@ area_found:
 		mutex_unlock(&pcpu_alloc_mutex);
 	}
 
-	if (chunk != pcpu_reserved_chunk)
+	if (chunk != pcpu_reserved_chunk) {
+		spin_lock_irqsave(&pcpu_lock, flags);
 		pcpu_nr_empty_pop_pages -= occ_pages;
+		spin_unlock_irqrestore(&pcpu_lock, flags);
+	}
 
 	if (pcpu_nr_empty_pop_pages < PCPU_EMPTY_POP_PAGES_LOW)
 		pcpu_schedule_balance_work();
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/rmap.c linux-libre-4.9.52-gnu/mm/rmap.c
--- linux-libre-4.9-gnu/mm/rmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/rmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -617,6 +617,13 @@ static void set_tlb_ubc_flush_pending(st
 	tlb_ubc->flush_required = true;
 
 	/*
+	 * Ensure compiler does not re-order the setting of tlb_flush_batched
+	 * before the PTE is cleared.
+	 */
+	barrier();
+	mm->tlb_flush_batched = true;
+
+	/*
 	 * If the PTE was dirty then it's best to assume it's writable. The
 	 * caller must use try_to_unmap_flush_dirty() or try_to_unmap_flush()
 	 * before the page is queued for IO.
@@ -643,6 +650,35 @@ static bool should_defer_flush(struct mm
 
 	return should_defer;
 }
+
+/*
+ * Reclaim unmaps pages under the PTL but do not flush the TLB prior to
+ * releasing the PTL if TLB flushes are batched. It's possible for a parallel
+ * operation such as mprotect or munmap to race between reclaim unmapping
+ * the page and flushing the page. If this race occurs, it potentially allows
+ * access to data via a stale TLB entry. Tracking all mm's that have TLB
+ * batching in flight would be expensive during reclaim so instead track
+ * whether TLB batching occurred in the past and if so then do a flush here
+ * if required. This will cost one additional flush per reclaim cycle paid
+ * by the first operation at risk such as mprotect and mumap.
+ *
+ * This must be called under the PTL so that an access to tlb_flush_batched
+ * that is potentially a "reclaim vs mprotect/munmap/etc" race will synchronise
+ * via the PTL.
+ */
+void flush_tlb_batched_pending(struct mm_struct *mm)
+{
+	if (mm->tlb_flush_batched) {
+		flush_tlb_mm(mm);
+
+		/*
+		 * Do not allow the compiler to re-order the clearing of
+		 * tlb_flush_batched before the tlb is flushed.
+		 */
+		barrier();
+		mm->tlb_flush_batched = false;
+	}
+}
 #else
 static void set_tlb_ubc_flush_pending(struct mm_struct *mm,
 		struct page *page, bool writable)
@@ -1295,7 +1331,7 @@ void page_add_file_rmap(struct page *pag
 			goto out;
 	}
 	__mod_node_page_state(page_pgdat(page), NR_FILE_MAPPED, nr);
-	mem_cgroup_inc_page_stat(page, MEM_CGROUP_STAT_FILE_MAPPED);
+	mem_cgroup_update_page_stat(page, MEM_CGROUP_STAT_FILE_MAPPED, nr);
 out:
 	unlock_page_memcg(page);
 }
@@ -1335,7 +1371,7 @@ static void page_remove_file_rmap(struct
 	 * pte lock(a spinlock) is held, which implies preemption disabled.
 	 */
 	__mod_node_page_state(page_pgdat(page), NR_FILE_MAPPED, -nr);
-	mem_cgroup_dec_page_stat(page, MEM_CGROUP_STAT_FILE_MAPPED);
+	mem_cgroup_update_page_stat(page, MEM_CGROUP_STAT_FILE_MAPPED, -nr);
 
 	if (unlikely(PageMlocked(page)))
 		clear_page_mlock(page);
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/shmem.c linux-libre-4.9.52-gnu/mm/shmem.c
--- linux-libre-4.9-gnu/mm/shmem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/shmem.c	2017-09-27 08:40:05.000000000 -0400
@@ -412,6 +412,7 @@ static unsigned long shmem_unused_huge_s
 		struct shrink_control *sc, unsigned long nr_to_split)
 {
 	LIST_HEAD(list), *pos, *next;
+	LIST_HEAD(to_remove);
 	struct inode *inode;
 	struct shmem_inode_info *info;
 	struct page *page;
@@ -438,9 +439,8 @@ static unsigned long shmem_unused_huge_s
 		/* Check if there's anything to gain */
 		if (round_up(inode->i_size, PAGE_SIZE) ==
 				round_up(inode->i_size, HPAGE_PMD_SIZE)) {
-			list_del_init(&info->shrinklist);
+			list_move(&info->shrinklist, &to_remove);
 			removed++;
-			iput(inode);
 			goto next;
 		}
 
@@ -451,6 +451,13 @@ next:
 	}
 	spin_unlock(&sbinfo->shrinklist_lock);
 
+	list_for_each_safe(pos, next, &to_remove) {
+		info = list_entry(pos, struct shmem_inode_info, shrinklist);
+		inode = &info->vfs_inode;
+		list_del_init(&info->shrinklist);
+		iput(inode);
+	}
+
 	list_for_each_safe(pos, next, &list) {
 		int ret;
 
@@ -1000,7 +1007,11 @@ static int shmem_setattr(struct dentry *
 			 */
 			if (IS_ENABLED(CONFIG_TRANSPARENT_HUGE_PAGECACHE)) {
 				spin_lock(&sbinfo->shrinklist_lock);
-				if (list_empty(&info->shrinklist)) {
+				/*
+				 * _careful to defend against unlocked access to
+				 * ->shrink_list in shmem_unused_huge_shrink()
+				 */
+				if (list_empty_careful(&info->shrinklist)) {
 					list_add_tail(&info->shrinklist,
 							&sbinfo->shrinklist);
 					sbinfo->shrinklist_len++;
@@ -1767,7 +1778,11 @@ alloc_nohuge:		page = shmem_alloc_and_ac
 			 * to shrink under memory pressure.
 			 */
 			spin_lock(&sbinfo->shrinklist_lock);
-			if (list_empty(&info->shrinklist)) {
+			/*
+			 * _careful to defend against unlocked access to
+			 * ->shrink_list in shmem_unused_huge_shrink()
+			 */
+			if (list_empty_careful(&info->shrinklist)) {
 				list_add_tail(&info->shrinklist,
 						&sbinfo->shrinklist);
 				sbinfo->shrinklist_len++;
@@ -3795,7 +3810,7 @@ int __init shmem_init(void)
 	}
 
 #ifdef CONFIG_TRANSPARENT_HUGE_PAGECACHE
-	if (has_transparent_hugepage() && shmem_huge < SHMEM_HUGE_DENY)
+	if (has_transparent_hugepage() && shmem_huge > SHMEM_HUGE_DENY)
 		SHMEM_SB(shm_mnt->mnt_sb)->huge = shmem_huge;
 	else
 		shmem_huge = 0; /* just in case it was patched */
@@ -3856,7 +3871,7 @@ static ssize_t shmem_enabled_store(struc
 		return -EINVAL;
 
 	shmem_huge = huge;
-	if (shmem_huge < SHMEM_HUGE_DENY)
+	if (shmem_huge > SHMEM_HUGE_DENY)
 		SHMEM_SB(shm_mnt->mnt_sb)->huge = shmem_huge;
 	return count;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/slab.c linux-libre-4.9.52-gnu/mm/slab.c
--- linux-libre-4.9-gnu/mm/slab.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/slab.c	2017-09-27 08:40:05.000000000 -0400
@@ -2332,7 +2332,7 @@ out:
 	return nr_freed;
 }
 
-int __kmem_cache_shrink(struct kmem_cache *cachep, bool deactivate)
+int __kmem_cache_shrink(struct kmem_cache *cachep)
 {
 	int ret = 0;
 	int node;
@@ -2352,7 +2352,7 @@ int __kmem_cache_shrink(struct kmem_cach
 
 int __kmem_cache_shutdown(struct kmem_cache *cachep)
 {
-	return __kmem_cache_shrink(cachep, false);
+	return __kmem_cache_shrink(cachep);
 }
 
 void __kmem_cache_release(struct kmem_cache *cachep)
@@ -2475,7 +2475,6 @@ union freelist_init_state {
 		unsigned int pos;
 		unsigned int *list;
 		unsigned int count;
-		unsigned int rand;
 	};
 	struct rnd_state rnd_state;
 };
@@ -2501,8 +2500,7 @@ static bool freelist_state_initialize(un
 	} else {
 		state->list = cachep->random_seq;
 		state->count = count;
-		state->pos = 0;
-		state->rand = rand;
+		state->pos = rand % count;
 		ret = true;
 	}
 	return ret;
@@ -2511,7 +2509,9 @@ static bool freelist_state_initialize(un
 /* Get the next entry on the list and randomize it using a random shift */
 static freelist_idx_t next_random_slot(union freelist_init_state *state)
 {
-	return (state->list[state->pos++] + state->rand) % state->count;
+	if (state->pos >= state->count)
+		state->pos = 0;
+	return state->list[state->pos++];
 }
 
 /* Swap two freelist entries */
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/slab_common.c linux-libre-4.9.52-gnu/mm/slab_common.c
--- linux-libre-4.9-gnu/mm/slab_common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/slab_common.c	2017-09-27 08:40:05.000000000 -0400
@@ -573,6 +573,29 @@ void memcg_deactivate_kmem_caches(struct
 	get_online_cpus();
 	get_online_mems();
 
+#ifdef CONFIG_SLUB
+	/*
+	 * In case of SLUB, we need to disable empty slab caching to
+	 * avoid pinning the offline memory cgroup by freeable kmem
+	 * pages charged to it. SLAB doesn't need this, as it
+	 * periodically purges unused slabs.
+	 */
+	mutex_lock(&slab_mutex);
+	list_for_each_entry(s, &slab_caches, list) {
+		c = is_root_cache(s) ? cache_from_memcg_idx(s, idx) : NULL;
+		if (c) {
+			c->cpu_partial = 0;
+			c->min_partial = 0;
+		}
+	}
+	mutex_unlock(&slab_mutex);
+	/*
+	 * kmem_cache->cpu_partial is checked locklessly (see
+	 * put_cpu_partial()). Make sure the change is visible.
+	 */
+	synchronize_sched();
+#endif
+
 	mutex_lock(&slab_mutex);
 	list_for_each_entry(s, &slab_caches, list) {
 		if (!is_root_cache(s))
@@ -584,7 +607,7 @@ void memcg_deactivate_kmem_caches(struct
 		if (!c)
 			continue;
 
-		__kmem_cache_shrink(c, true);
+		__kmem_cache_shrink(c);
 		arr->entries[idx] = NULL;
 	}
 	mutex_unlock(&slab_mutex);
@@ -755,7 +778,7 @@ int kmem_cache_shrink(struct kmem_cache
 	get_online_cpus();
 	get_online_mems();
 	kasan_cache_shrink(cachep);
-	ret = __kmem_cache_shrink(cachep, false);
+	ret = __kmem_cache_shrink(cachep);
 	put_online_mems();
 	put_online_cpus();
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/slab.h linux-libre-4.9.52-gnu/mm/slab.h
--- linux-libre-4.9-gnu/mm/slab.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/slab.h	2017-09-27 08:40:05.000000000 -0400
@@ -146,7 +146,7 @@ static inline unsigned long kmem_cache_f
 
 int __kmem_cache_shutdown(struct kmem_cache *);
 void __kmem_cache_release(struct kmem_cache *);
-int __kmem_cache_shrink(struct kmem_cache *, bool);
+int __kmem_cache_shrink(struct kmem_cache *);
 void slab_kmem_cache_release(struct kmem_cache *);
 
 struct seq_file;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/slob.c linux-libre-4.9.52-gnu/mm/slob.c
--- linux-libre-4.9-gnu/mm/slob.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/slob.c	2017-09-27 08:40:05.000000000 -0400
@@ -634,7 +634,7 @@ void __kmem_cache_release(struct kmem_ca
 {
 }
 
-int __kmem_cache_shrink(struct kmem_cache *d, bool deactivate)
+int __kmem_cache_shrink(struct kmem_cache *d)
 {
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/slub.c linux-libre-4.9.52-gnu/mm/slub.c
--- linux-libre-4.9-gnu/mm/slub.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/slub.c	2017-09-27 08:40:05.000000000 -0400
@@ -496,10 +496,11 @@ static inline int check_valid_pointer(st
 	return 1;
 }
 
-static void print_section(char *text, u8 *addr, unsigned int length)
+static void print_section(char *level, char *text, u8 *addr,
+			  unsigned int length)
 {
 	metadata_access_enable();
-	print_hex_dump(KERN_ERR, text, DUMP_PREFIX_ADDRESS, 16, 1, addr,
+	print_hex_dump(level, text, DUMP_PREFIX_ADDRESS, 16, 1, addr,
 			length, 1);
 	metadata_access_disable();
 }
@@ -636,14 +637,15 @@ static void print_trailer(struct kmem_ca
 	       p, p - addr, get_freepointer(s, p));
 
 	if (s->flags & SLAB_RED_ZONE)
-		print_section("Redzone ", p - s->red_left_pad, s->red_left_pad);
+		print_section(KERN_ERR, "Redzone ", p - s->red_left_pad,
+			      s->red_left_pad);
 	else if (p > addr + 16)
-		print_section("Bytes b4 ", p - 16, 16);
+		print_section(KERN_ERR, "Bytes b4 ", p - 16, 16);
 
-	print_section("Object ", p, min_t(unsigned long, s->object_size,
-				PAGE_SIZE));
+	print_section(KERN_ERR, "Object ", p,
+		      min_t(unsigned long, s->object_size, PAGE_SIZE));
 	if (s->flags & SLAB_RED_ZONE)
-		print_section("Redzone ", p + s->object_size,
+		print_section(KERN_ERR, "Redzone ", p + s->object_size,
 			s->inuse - s->object_size);
 
 	if (s->offset)
@@ -658,7 +660,8 @@ static void print_trailer(struct kmem_ca
 
 	if (off != size_from_object(s))
 		/* Beginning of the filler is the free pointer */
-		print_section("Padding ", p + off, size_from_object(s) - off);
+		print_section(KERN_ERR, "Padding ", p + off,
+			      size_from_object(s) - off);
 
 	dump_stack();
 }
@@ -820,7 +823,7 @@ static int slab_pad_check(struct kmem_ca
 		end--;
 
 	slab_err(s, page, "Padding overwritten. 0x%p-0x%p", fault, end - 1);
-	print_section("Padding ", end - remainder, remainder);
+	print_section(KERN_ERR, "Padding ", end - remainder, remainder);
 
 	restore_bytes(s, "slab padding", POISON_INUSE, end - remainder, end);
 	return 0;
@@ -973,7 +976,7 @@ static void trace(struct kmem_cache *s,
 			page->freelist);
 
 		if (!alloc)
-			print_section("Object ", (void *)object,
+			print_section(KERN_INFO, "Object ", (void *)object,
 					s->object_size);
 
 		dump_stack();
@@ -1419,6 +1422,10 @@ static int init_cache_random_seq(struct
 	int err;
 	unsigned long i, count = oo_objects(s->oo);
 
+	/* Bailout if already initialised */
+	if (s->random_seq)
+		return 0;
+
 	err = cache_random_seq_create(s, count, GFP_KERNEL);
 	if (err) {
 		pr_err("SLUB: Unable to initialize free list for %s\n",
@@ -3883,7 +3890,7 @@ EXPORT_SYMBOL(kfree);
  * being allocated from last increasing the chance that the last objects
  * are freed in them.
  */
-int __kmem_cache_shrink(struct kmem_cache *s, bool deactivate)
+int __kmem_cache_shrink(struct kmem_cache *s)
 {
 	int node;
 	int i;
@@ -3895,21 +3902,6 @@ int __kmem_cache_shrink(struct kmem_cach
 	unsigned long flags;
 	int ret = 0;
 
-	if (deactivate) {
-		/*
-		 * Disable empty slabs caching. Used to avoid pinning offline
-		 * memory cgroups by kmem pages that can be freed.
-		 */
-		s->cpu_partial = 0;
-		s->min_partial = 0;
-
-		/*
-		 * s->cpu_partial is checked locklessly (see put_cpu_partial),
-		 * so we have to make sure the change is visible.
-		 */
-		synchronize_sched();
-	}
-
 	flush_all(s);
 	for_each_kmem_cache_node(s, node, n) {
 		INIT_LIST_HEAD(&discard);
@@ -3966,7 +3958,7 @@ static int slab_mem_going_offline_callba
 
 	mutex_lock(&slab_mutex);
 	list_for_each_entry(s, &slab_caches, list)
-		__kmem_cache_shrink(s, false);
+		__kmem_cache_shrink(s);
 	mutex_unlock(&slab_mutex);
 
 	return 0;
@@ -5463,6 +5455,7 @@ static void memcg_propagate_slab_attrs(s
 		char mbuf[64];
 		char *buf;
 		struct slab_attribute *attr = to_slab_attr(slab_attrs[i]);
+		ssize_t len;
 
 		if (!attr || !attr->store || !attr->show)
 			continue;
@@ -5487,8 +5480,9 @@ static void memcg_propagate_slab_attrs(s
 			buf = buffer;
 		}
 
-		attr->show(root_cache, buf);
-		attr->store(s, buf, strlen(buf));
+		len = attr->show(root_cache, buf);
+		if (len > 0)
+			attr->store(s, buf, len);
 	}
 
 	if (buffer)
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/swap_cgroup.c linux-libre-4.9.52-gnu/mm/swap_cgroup.c
--- linux-libre-4.9-gnu/mm/swap_cgroup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/swap_cgroup.c	2017-09-27 08:40:05.000000000 -0400
@@ -48,6 +48,9 @@ static int swap_cgroup_prepare(int type)
 		if (!page)
 			goto not_enough_page;
 		ctrl->map[idx] = page;
+
+		if (!(idx % SWAP_CLUSTER_MAX))
+			cond_resched();
 	}
 	return 0;
 not_enough_page:
@@ -201,6 +204,8 @@ void swap_cgroup_swapoff(int type)
 			struct page *page = map[i];
 			if (page)
 				__free_page(page);
+			if (!(i % SWAP_CLUSTER_MAX))
+				cond_resched();
 		}
 		vfree(map);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/swapfile.c linux-libre-4.9.52-gnu/mm/swapfile.c
--- linux-libre-4.9-gnu/mm/swapfile.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/swapfile.c	2017-09-27 08:40:05.000000000 -0400
@@ -943,11 +943,25 @@ bool reuse_swap_page(struct page *page,
 	count = page_trans_huge_mapcount(page, total_mapcount);
 	if (count <= 1 && PageSwapCache(page)) {
 		count += page_swapcount(page);
-		if (count == 1 && !PageWriteback(page)) {
+		if (count != 1)
+			goto out;
+		if (!PageWriteback(page)) {
 			delete_from_swap_cache(page);
 			SetPageDirty(page);
+		} else {
+			swp_entry_t entry;
+			struct swap_info_struct *p;
+
+			entry.val = page_private(page);
+			p = swap_info_get(entry);
+			if (p->flags & SWP_STABLE_WRITES) {
+				spin_unlock(&p->lock);
+				return false;
+			}
+			spin_unlock(&p->lock);
 		}
 	}
+out:
 	return count <= 1;
 }
 
@@ -2449,6 +2463,10 @@ SYSCALL_DEFINE2(swapon, const char __use
 		error = -ENOMEM;
 		goto bad_swap;
 	}
+
+	if (bdi_cap_stable_pages_required(inode_to_bdi(inode)))
+		p->flags |= SWP_STABLE_WRITES;
+
 	if (p->bdev && blk_queue_nonrot(bdev_get_queue(p->bdev))) {
 		int cpu;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/truncate.c linux-libre-4.9.52-gnu/mm/truncate.c
--- linux-libre-4.9-gnu/mm/truncate.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/truncate.c	2017-09-27 08:40:05.000000000 -0400
@@ -753,7 +753,7 @@ EXPORT_SYMBOL(truncate_setsize);
  */
 void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to)
 {
-	int bsize = 1 << inode->i_blkbits;
+	int bsize = i_blocksize(inode);
 	loff_t rounded_from;
 	struct page *page;
 	pgoff_t index;
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/vmalloc.c linux-libre-4.9.52-gnu/mm/vmalloc.c
--- linux-libre-4.9-gnu/mm/vmalloc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/vmalloc.c	2017-09-27 08:40:05.000000000 -0400
@@ -244,11 +244,21 @@ struct page *vmalloc_to_page(const void
 	 */
 	VIRTUAL_BUG_ON(!is_vmalloc_or_module_addr(vmalloc_addr));
 
+	/*
+	 * Don't dereference bad PUD or PMD (below) entries. This will also
+	 * identify huge mappings, which we may encounter on architectures
+	 * that define CONFIG_HAVE_ARCH_HUGE_VMAP=y. Such regions will be
+	 * identified as vmalloc addresses by is_vmalloc_addr(), but are
+	 * not [unambiguously] associated with a struct page, so there is
+	 * no correct value to return for them.
+	 */
 	if (!pgd_none(*pgd)) {
 		pud_t *pud = pud_offset(pgd, addr);
-		if (!pud_none(*pud)) {
+		WARN_ON_ONCE(pud_bad(*pud));
+		if (!pud_none(*pud) && !pud_bad(*pud)) {
 			pmd_t *pmd = pmd_offset(pud, addr);
-			if (!pmd_none(*pmd)) {
+			WARN_ON_ONCE(pmd_bad(*pmd));
+			if (!pmd_none(*pmd) && !pmd_bad(*pmd)) {
 				pte_t *ptep, pte;
 
 				ptep = pte_offset_map(pmd, addr);
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/vmpressure.c linux-libre-4.9.52-gnu/mm/vmpressure.c
--- linux-libre-4.9-gnu/mm/vmpressure.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/vmpressure.c	2017-09-27 08:40:05.000000000 -0400
@@ -112,9 +112,16 @@ static enum vmpressure_levels vmpressure
 						    unsigned long reclaimed)
 {
 	unsigned long scale = scanned + reclaimed;
-	unsigned long pressure;
+	unsigned long pressure = 0;
 
 	/*
+	 * reclaimed can be greater than scanned in cases
+	 * like THP, where the scanned is 1 and reclaimed
+	 * could be 512
+	 */
+	if (reclaimed >= scanned)
+		goto out;
+	/*
 	 * We calculate the ratio (in percents) of how many pages were
 	 * scanned vs. reclaimed in a given time frame (window). Note that
 	 * time is in VM reclaimer's "ticks", i.e. number of pages
@@ -124,6 +131,7 @@ static enum vmpressure_levels vmpressure
 	pressure = scale - (reclaimed * scale / scanned);
 	pressure = pressure * 100 / scale;
 
+out:
 	pr_debug("%s: %3lu  (s: %lu  r: %lu)\n", __func__, pressure,
 		 scanned, reclaimed);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/vmscan.c linux-libre-4.9.52-gnu/mm/vmscan.c
--- linux-libre-4.9-gnu/mm/vmscan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/vmscan.c	2017-09-27 08:40:05.000000000 -0400
@@ -234,12 +234,39 @@ bool pgdat_reclaimable(struct pglist_dat
 		pgdat_reclaimable_pages(pgdat) * 6;
 }
 
-unsigned long lruvec_lru_size(struct lruvec *lruvec, enum lru_list lru)
+/**
+ * lruvec_lru_size -  Returns the number of pages on the given LRU list.
+ * @lruvec: lru vector
+ * @lru: lru to use
+ * @zone_idx: zones to consider (use MAX_NR_ZONES for the whole LRU list)
+ */
+unsigned long lruvec_lru_size(struct lruvec *lruvec, enum lru_list lru, int zone_idx)
 {
+	unsigned long lru_size;
+	int zid;
+
 	if (!mem_cgroup_disabled())
-		return mem_cgroup_get_lru_size(lruvec, lru);
+		lru_size = mem_cgroup_get_lru_size(lruvec, lru);
+	else
+		lru_size = node_page_state(lruvec_pgdat(lruvec), NR_LRU_BASE + lru);
+
+	for (zid = zone_idx + 1; zid < MAX_NR_ZONES; zid++) {
+		struct zone *zone = &lruvec_pgdat(lruvec)->node_zones[zid];
+		unsigned long size;
+
+		if (!managed_zone(zone))
+			continue;
+
+		if (!mem_cgroup_disabled())
+			size = mem_cgroup_get_zone_lru_size(lruvec, lru, zid);
+		else
+			size = zone_page_state(&lruvec_pgdat(lruvec)->node_zones[zid],
+				       NR_ZONE_LRU_BASE + lru);
+		lru_size -= min(size, lru_size);
+	}
+
+	return lru_size;
 
-	return node_page_state(lruvec_pgdat(lruvec), NR_LRU_BASE + lru);
 }
 
 /*
@@ -291,6 +318,7 @@ static unsigned long do_shrink_slab(stru
 	int nid = shrinkctl->nid;
 	long batch_size = shrinker->batch ? shrinker->batch
 					  : SHRINK_BATCH;
+	long scanned = 0, next_deferred;
 
 	freeable = shrinker->count_objects(shrinker, shrinkctl);
 	if (freeable == 0)
@@ -312,7 +340,9 @@ static unsigned long do_shrink_slab(stru
 		pr_err("shrink_slab: %pF negative objects to delete nr=%ld\n",
 		       shrinker->scan_objects, total_scan);
 		total_scan = freeable;
-	}
+		next_deferred = nr;
+	} else
+		next_deferred = total_scan;
 
 	/*
 	 * We need to avoid excessive windup on filesystem shrinkers
@@ -369,17 +399,22 @@ static unsigned long do_shrink_slab(stru
 
 		count_vm_events(SLABS_SCANNED, nr_to_scan);
 		total_scan -= nr_to_scan;
+		scanned += nr_to_scan;
 
 		cond_resched();
 	}
 
+	if (next_deferred >= scanned)
+		next_deferred -= scanned;
+	else
+		next_deferred = 0;
 	/*
 	 * move the unused scan count back into the shrinker in a
 	 * manner that handles concurrent updates. If we exhausted the
 	 * scan, there is no need to do an update.
 	 */
-	if (total_scan > 0)
-		new_nr = atomic_long_add_return(total_scan,
+	if (next_deferred > 0)
+		new_nr = atomic_long_add_return(next_deferred,
 						&shrinker->nr_deferred[nid]);
 	else
 		new_nr = atomic_long_read(&shrinker->nr_deferred[nid]);
@@ -1374,8 +1409,7 @@ int __isolate_lru_page(struct page *page
  * be complete before mem_cgroup_update_lru_size due to a santity check.
  */
 static __always_inline void update_lru_sizes(struct lruvec *lruvec,
-			enum lru_list lru, unsigned long *nr_zone_taken,
-			unsigned long nr_taken)
+			enum lru_list lru, unsigned long *nr_zone_taken)
 {
 	int zid;
 
@@ -1384,11 +1418,11 @@ static __always_inline void update_lru_s
 			continue;
 
 		__update_lru_size(lruvec, lru, zid, -nr_zone_taken[zid]);
-	}
-
 #ifdef CONFIG_MEMCG
-	mem_cgroup_update_lru_size(lruvec, lru, -nr_taken);
+		mem_cgroup_update_lru_size(lruvec, lru, zid, -nr_zone_taken[zid]);
 #endif
+	}
+
 }
 
 /*
@@ -1493,7 +1527,7 @@ static unsigned long isolate_lru_pages(u
 	*nr_scanned = scan;
 	trace_mm_vmscan_lru_isolate(sc->reclaim_idx, sc->order, nr_to_scan, scan,
 				    nr_taken, mode, is_file_lru(lru));
-	update_lru_sizes(lruvec, lru, nr_zone_taken, nr_taken);
+	update_lru_sizes(lruvec, lru, nr_zone_taken);
 	return nr_taken;
 }
 
@@ -2011,11 +2045,10 @@ static bool inactive_list_is_low(struct
 						struct scan_control *sc)
 {
 	unsigned long inactive_ratio;
-	unsigned long inactive;
-	unsigned long active;
+	unsigned long inactive, active;
+	enum lru_list inactive_lru = file * LRU_FILE;
+	enum lru_list active_lru = file * LRU_FILE + LRU_ACTIVE;
 	unsigned long gb;
-	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
-	int zid;
 
 	/*
 	 * If we don't have swap space, anonymous page deactivation
@@ -2024,29 +2057,8 @@ static bool inactive_list_is_low(struct
 	if (!file && !total_swap_pages)
 		return false;
 
-	inactive = lruvec_lru_size(lruvec, file * LRU_FILE);
-	active = lruvec_lru_size(lruvec, file * LRU_FILE + LRU_ACTIVE);
-
-	/*
-	 * For zone-constrained allocations, it is necessary to check if
-	 * deactivations are required for lowmem to be reclaimed. This
-	 * calculates the inactive/active pages available in eligible zones.
-	 */
-	for (zid = sc->reclaim_idx + 1; zid < MAX_NR_ZONES; zid++) {
-		struct zone *zone = &pgdat->node_zones[zid];
-		unsigned long inactive_zone, active_zone;
-
-		if (!managed_zone(zone))
-			continue;
-
-		inactive_zone = zone_page_state(zone,
-				NR_ZONE_LRU_BASE + (file * LRU_FILE));
-		active_zone = zone_page_state(zone,
-				NR_ZONE_LRU_BASE + (file * LRU_FILE) + LRU_ACTIVE);
-
-		inactive -= min(inactive, inactive_zone);
-		active -= min(active, active_zone);
-	}
+	inactive = lruvec_lru_size(lruvec, inactive_lru, sc->reclaim_idx);
+	active = lruvec_lru_size(lruvec, active_lru, sc->reclaim_idx);
 
 	gb = (inactive + active) >> (30 - PAGE_SHIFT);
 	if (gb)
@@ -2193,7 +2205,7 @@ static void get_scan_count(struct lruvec
 	 * system is under heavy pressure.
 	 */
 	if (!inactive_list_is_low(lruvec, true, sc) &&
-	    lruvec_lru_size(lruvec, LRU_INACTIVE_FILE) >> sc->priority) {
+	    lruvec_lru_size(lruvec, LRU_INACTIVE_FILE, sc->reclaim_idx) >> sc->priority) {
 		scan_balance = SCAN_FILE;
 		goto out;
 	}
@@ -2219,10 +2231,10 @@ static void get_scan_count(struct lruvec
 	 * anon in [0], file in [1]
 	 */
 
-	anon  = lruvec_lru_size(lruvec, LRU_ACTIVE_ANON) +
-		lruvec_lru_size(lruvec, LRU_INACTIVE_ANON);
-	file  = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE) +
-		lruvec_lru_size(lruvec, LRU_INACTIVE_FILE);
+	anon  = lruvec_lru_size(lruvec, LRU_ACTIVE_ANON, MAX_NR_ZONES) +
+		lruvec_lru_size(lruvec, LRU_INACTIVE_ANON, MAX_NR_ZONES);
+	file  = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE, MAX_NR_ZONES) +
+		lruvec_lru_size(lruvec, LRU_INACTIVE_FILE, MAX_NR_ZONES);
 
 	spin_lock_irq(&pgdat->lru_lock);
 	if (unlikely(reclaim_stat->recent_scanned[0] > anon / 4)) {
@@ -2260,7 +2272,7 @@ out:
 			unsigned long size;
 			unsigned long scan;
 
-			size = lruvec_lru_size(lruvec, lru);
+			size = lruvec_lru_size(lruvec, lru, sc->reclaim_idx);
 			scan = size >> sc->priority;
 
 			if (!scan && pass && force_scan)
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/workingset.c linux-libre-4.9.52-gnu/mm/workingset.c
--- linux-libre-4.9-gnu/mm/workingset.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/workingset.c	2017-09-27 08:40:05.000000000 -0400
@@ -266,7 +266,7 @@ bool workingset_refault(void *shadow)
 	}
 	lruvec = mem_cgroup_lruvec(pgdat, memcg);
 	refault = atomic_long_read(&lruvec->inactive_age);
-	active_file = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE);
+	active_file = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE, MAX_NR_ZONES);
 	rcu_read_unlock();
 
 	/*
@@ -492,7 +492,7 @@ static int __init workingset_init(void)
 	pr_info("workingset: timestamp_bits=%d max_order=%d bucket_order=%u\n",
 	       timestamp_bits, max_order, bucket_order);
 
-	ret = list_lru_init_key(&workingset_shadow_nodes, &shadow_nodes_key);
+	ret = __list_lru_init(&workingset_shadow_nodes, true, &shadow_nodes_key);
 	if (ret)
 		goto err;
 	ret = register_shrinker(&workingset_shadow_shrinker);
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/zsmalloc.c linux-libre-4.9.52-gnu/mm/zsmalloc.c
--- linux-libre-4.9-gnu/mm/zsmalloc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/zsmalloc.c	2017-09-27 08:40:05.000000000 -0400
@@ -280,7 +280,7 @@ struct zs_pool {
 struct zspage {
 	struct {
 		unsigned int fullness:FULLNESS_BITS;
-		unsigned int class:CLASS_BITS;
+		unsigned int class:CLASS_BITS + 1;
 		unsigned int isolated:ISOLATED_BITS;
 		unsigned int magic:MAGIC_VAL_BITS;
 	};
diff -druNp --no-dereference linux-libre-4.9-gnu/mm/zswap.c linux-libre-4.9.52-gnu/mm/zswap.c
--- linux-libre-4.9-gnu/mm/zswap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/mm/zswap.c	2017-09-27 08:40:05.000000000 -0400
@@ -78,7 +78,13 @@ static u64 zswap_duplicate_entry;
 
 /* Enable/disable zswap (disabled by default) */
 static bool zswap_enabled;
-module_param_named(enabled, zswap_enabled, bool, 0644);
+static int zswap_enabled_param_set(const char *,
+				   const struct kernel_param *);
+static struct kernel_param_ops zswap_enabled_param_ops = {
+	.set =		zswap_enabled_param_set,
+	.get =		param_get_bool,
+};
+module_param_cb(enabled, &zswap_enabled_param_ops, &zswap_enabled, 0644);
 
 /* Crypto compressor to use */
 #define ZSWAP_COMPRESSOR_DEFAULT "lzo"
@@ -176,6 +182,9 @@ static atomic_t zswap_pools_count = ATOM
 /* used by param callback function */
 static bool zswap_init_started;
 
+/* fatal error during init */
+static bool zswap_init_failed;
+
 /*********************************
 * helpers and fwd declarations
 **********************************/
@@ -706,6 +715,11 @@ static int __zswap_param_set(const char
 	char *s = strstrip((char *)val);
 	int ret;
 
+	if (zswap_init_failed) {
+		pr_err("can't set param, initialization failed\n");
+		return -ENODEV;
+	}
+
 	/* no change required */
 	if (!strcmp(s, *(char **)kp->arg))
 		return 0;
@@ -785,6 +799,17 @@ static int zswap_zpool_param_set(const c
 	return __zswap_param_set(val, kp, NULL, zswap_compressor);
 }
 
+static int zswap_enabled_param_set(const char *val,
+				   const struct kernel_param *kp)
+{
+	if (zswap_init_failed) {
+		pr_err("can't enable, initialization failed\n");
+		return -ENODEV;
+	}
+
+	return param_set_bool(val, kp);
+}
+
 /*********************************
 * writeback code
 **********************************/
@@ -1271,6 +1296,9 @@ pool_fail:
 dstmem_fail:
 	zswap_entry_cache_destroy();
 cache_fail:
+	/* if built-in, we aren't unloaded on failure; don't allow use */
+	zswap_init_failed = true;
+	zswap_enabled = false;
 	return -ENOMEM;
 }
 /* must be late so crypto has time to come up */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/8021q/vlan.c linux-libre-4.9.52-gnu/net/8021q/vlan.c
--- linux-libre-4.9-gnu/net/8021q/vlan.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/8021q/vlan.c	2017-09-27 08:40:05.000000000 -0400
@@ -277,7 +277,8 @@ static int register_vlan_device(struct n
 	return 0;
 
 out_free_newdev:
-	free_netdev(new_dev);
+	if (new_dev->reg_state == NETREG_UNINITIALIZED)
+		free_netdev(new_dev);
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/9p/client.c linux-libre-4.9.52-gnu/net/9p/client.c
--- linux-libre-4.9-gnu/net/9p/client.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/9p/client.c	2017-09-27 08:40:05.000000000 -0400
@@ -2101,6 +2101,10 @@ int p9_client_readdir(struct p9_fid *fid
 		trace_9p_protocol_dump(clnt, req->rc);
 		goto free_and_error;
 	}
+	if (rsize < count) {
+		pr_err("bogus RREADDIR count (%d > %d)\n", count, rsize);
+		count = rsize;
+	}
 
 	p9_debug(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ax25/ax25_subr.c linux-libre-4.9.52-gnu/net/ax25/ax25_subr.c
--- linux-libre-4.9-gnu/net/ax25/ax25_subr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ax25/ax25_subr.c	2017-09-27 08:40:05.000000000 -0400
@@ -264,7 +264,7 @@ void ax25_disconnect(ax25_cb *ax25, int
 {
 	ax25_clear_queues(ax25);
 
-	if (!sock_flag(ax25->sk, SOCK_DESTROY))
+	if (!ax25->sk || !sock_flag(ax25->sk, SOCK_DESTROY))
 		ax25_stop_heartbeat(ax25);
 	ax25_stop_t1timer(ax25);
 	ax25_stop_t2timer(ax25);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bluetooth/bnep/core.c linux-libre-4.9.52-gnu/net/bluetooth/bnep/core.c
--- linux-libre-4.9-gnu/net/bluetooth/bnep/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bluetooth/bnep/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -484,16 +484,16 @@ static int bnep_session(void *arg)
 	struct net_device *dev = s->dev;
 	struct sock *sk = s->sock->sk;
 	struct sk_buff *skb;
-	wait_queue_t wait;
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 
 	BT_DBG("");
 
 	set_user_nice(current, -15);
 
-	init_waitqueue_entry(&wait, current);
 	add_wait_queue(sk_sleep(sk), &wait);
 	while (1) {
-		set_current_state(TASK_INTERRUPTIBLE);
+		/* Ensure session->terminate is updated */
+		smp_mb__before_atomic();
 
 		if (atomic_read(&s->terminate))
 			break;
@@ -515,9 +515,8 @@ static int bnep_session(void *arg)
 				break;
 		netif_wake_queue(dev);
 
-		schedule();
+		wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
 	}
-	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(sk_sleep(sk), &wait);
 
 	/* Cleanup session */
@@ -666,7 +665,7 @@ int bnep_del_connection(struct bnep_conn
 	s = __bnep_get_session(req->dst);
 	if (s) {
 		atomic_inc(&s->terminate);
-		wake_up_process(s->task);
+		wake_up_interruptible(sk_sleep(s->sock->sk));
 	} else
 		err = -ENOENT;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bluetooth/cmtp/core.c linux-libre-4.9.52-gnu/net/bluetooth/cmtp/core.c
--- linux-libre-4.9-gnu/net/bluetooth/cmtp/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bluetooth/cmtp/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -280,16 +280,16 @@ static int cmtp_session(void *arg)
 	struct cmtp_session *session = arg;
 	struct sock *sk = session->sock->sk;
 	struct sk_buff *skb;
-	wait_queue_t wait;
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 
 	BT_DBG("session %p", session);
 
 	set_user_nice(current, -15);
 
-	init_waitqueue_entry(&wait, current);
 	add_wait_queue(sk_sleep(sk), &wait);
 	while (1) {
-		set_current_state(TASK_INTERRUPTIBLE);
+		/* Ensure session->terminate is updated */
+		smp_mb__before_atomic();
 
 		if (atomic_read(&session->terminate))
 			break;
@@ -306,9 +306,8 @@ static int cmtp_session(void *arg)
 
 		cmtp_process_transmit(session);
 
-		schedule();
+		wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
 	}
-	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(sk_sleep(sk), &wait);
 
 	down_write(&cmtp_session_sem);
@@ -393,7 +392,7 @@ int cmtp_add_connection(struct cmtp_conn
 		err = cmtp_attach_device(session);
 		if (err < 0) {
 			atomic_inc(&session->terminate);
-			wake_up_process(session->task);
+			wake_up_interruptible(sk_sleep(session->sock->sk));
 			up_write(&cmtp_session_sem);
 			return err;
 		}
@@ -431,7 +430,11 @@ int cmtp_del_connection(struct cmtp_conn
 
 		/* Stop session thread */
 		atomic_inc(&session->terminate);
-		wake_up_process(session->task);
+
+		/* Ensure session->terminate is updated */
+		smp_mb__after_atomic();
+
+		wake_up_interruptible(sk_sleep(session->sock->sk));
 	} else
 		err = -ENOENT;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bluetooth/hci_sock.c linux-libre-4.9.52-gnu/net/bluetooth/hci_sock.c
--- linux-libre-4.9-gnu/net/bluetooth/hci_sock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bluetooth/hci_sock.c	2017-09-27 08:40:05.000000000 -0400
@@ -1680,7 +1680,8 @@ static int hci_sock_sendmsg(struct socke
 	if (msg->msg_flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
-	if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
+	if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE|
+			       MSG_CMSG_COMPAT))
 		return -EINVAL;
 
 	if (len < 4 || len > HCI_MAX_FRAME_SIZE)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bluetooth/hidp/core.c linux-libre-4.9.52-gnu/net/bluetooth/hidp/core.c
--- linux-libre-4.9-gnu/net/bluetooth/hidp/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bluetooth/hidp/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -36,6 +36,7 @@
 #define VERSION "1.2"
 
 static DECLARE_RWSEM(hidp_session_sem);
+static DECLARE_WAIT_QUEUE_HEAD(hidp_session_wq);
 static LIST_HEAD(hidp_session_list);
 
 static unsigned char hidp_keycode[256] = {
@@ -1068,12 +1069,12 @@ static int hidp_session_start_sync(struc
  * Wake up session thread and notify it to stop. This is asynchronous and
  * returns immediately. Call this whenever a runtime error occurs and you want
  * the session to stop.
- * Note: wake_up_process() performs any necessary memory-barriers for us.
+ * Note: wake_up_interruptible() performs any necessary memory-barriers for us.
  */
 static void hidp_session_terminate(struct hidp_session *session)
 {
 	atomic_inc(&session->terminate);
-	wake_up_process(session->task);
+	wake_up_interruptible(&hidp_session_wq);
 }
 
 /*
@@ -1180,7 +1181,9 @@ static void hidp_session_run(struct hidp
 	struct sock *ctrl_sk = session->ctrl_sock->sk;
 	struct sock *intr_sk = session->intr_sock->sk;
 	struct sk_buff *skb;
+	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 
+	add_wait_queue(&hidp_session_wq, &wait);
 	for (;;) {
 		/*
 		 * This thread can be woken up two ways:
@@ -1188,12 +1191,10 @@ static void hidp_session_run(struct hidp
 		 *    session->terminate flag and wakes this thread up.
 		 *  - Via modifying the socket state of ctrl/intr_sock. This
 		 *    thread is woken up by ->sk_state_changed().
-		 *
-		 * Note: set_current_state() performs any necessary
-		 * memory-barriers for us.
 		 */
-		set_current_state(TASK_INTERRUPTIBLE);
 
+		/* Ensure session->terminate is updated */
+		smp_mb__before_atomic();
 		if (atomic_read(&session->terminate))
 			break;
 
@@ -1227,11 +1228,22 @@ static void hidp_session_run(struct hidp
 		hidp_process_transmit(session, &session->ctrl_transmit,
 				      session->ctrl_sock);
 
-		schedule();
+		wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
 	}
+	remove_wait_queue(&hidp_session_wq, &wait);
 
 	atomic_inc(&session->terminate);
-	set_current_state(TASK_RUNNING);
+
+	/* Ensure session->terminate is updated */
+	smp_mb__after_atomic();
+}
+
+static int hidp_session_wake_function(wait_queue_t *wait,
+				      unsigned int mode,
+				      int sync, void *key)
+{
+	wake_up_interruptible(&hidp_session_wq);
+	return false;
 }
 
 /*
@@ -1244,7 +1256,8 @@ static void hidp_session_run(struct hidp
 static int hidp_session_thread(void *arg)
 {
 	struct hidp_session *session = arg;
-	wait_queue_t ctrl_wait, intr_wait;
+	DEFINE_WAIT_FUNC(ctrl_wait, hidp_session_wake_function);
+	DEFINE_WAIT_FUNC(intr_wait, hidp_session_wake_function);
 
 	BT_DBG("session %p", session);
 
@@ -1254,8 +1267,6 @@ static int hidp_session_thread(void *arg
 	set_user_nice(current, -15);
 	hidp_set_timer(session);
 
-	init_waitqueue_entry(&ctrl_wait, current);
-	init_waitqueue_entry(&intr_wait, current);
 	add_wait_queue(sk_sleep(session->ctrl_sock->sk), &ctrl_wait);
 	add_wait_queue(sk_sleep(session->intr_sock->sk), &intr_wait);
 	/* This memory barrier is paired with wq_has_sleeper(). See
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bluetooth/l2cap_core.c linux-libre-4.9.52-gnu/net/bluetooth/l2cap_core.c
--- linux-libre-4.9-gnu/net/bluetooth/l2cap_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bluetooth/l2cap_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,7 +58,7 @@ static struct sk_buff *l2cap_build_cmd(s
 				       u8 code, u8 ident, u16 dlen, void *data);
 static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
 			   void *data);
-static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data);
+static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data, size_t data_size);
 static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err);
 
 static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
@@ -1473,7 +1473,7 @@ static void l2cap_conn_start(struct l2ca
 
 			set_bit(CONF_REQ_SENT, &chan->conf_state);
 			l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-				       l2cap_build_conf_req(chan, buf), buf);
+				       l2cap_build_conf_req(chan, buf, sizeof(buf)), buf);
 			chan->num_conf_req++;
 		}
 
@@ -2977,12 +2977,15 @@ static inline int l2cap_get_conf_opt(voi
 	return len;
 }
 
-static void l2cap_add_conf_opt(void **ptr, u8 type, u8 len, unsigned long val)
+static void l2cap_add_conf_opt(void **ptr, u8 type, u8 len, unsigned long val, size_t size)
 {
 	struct l2cap_conf_opt *opt = *ptr;
 
 	BT_DBG("type 0x%2.2x len %u val 0x%lx", type, len, val);
 
+	if (size < L2CAP_CONF_OPT_SIZE + len)
+		return;
+
 	opt->type = type;
 	opt->len  = len;
 
@@ -3007,7 +3010,7 @@ static void l2cap_add_conf_opt(void **pt
 	*ptr += L2CAP_CONF_OPT_SIZE + len;
 }
 
-static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan)
+static void l2cap_add_opt_efs(void **ptr, struct l2cap_chan *chan, size_t size)
 {
 	struct l2cap_conf_efs efs;
 
@@ -3035,7 +3038,7 @@ static void l2cap_add_opt_efs(void **ptr
 	}
 
 	l2cap_add_conf_opt(ptr, L2CAP_CONF_EFS, sizeof(efs),
-			   (unsigned long) &efs);
+			   (unsigned long) &efs, size);
 }
 
 static void l2cap_ack_timeout(struct work_struct *work)
@@ -3181,11 +3184,12 @@ static inline void l2cap_txwin_setup(str
 	chan->ack_win = chan->tx_win;
 }
 
-static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data)
+static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data, size_t data_size)
 {
 	struct l2cap_conf_req *req = data;
 	struct l2cap_conf_rfc rfc = { .mode = chan->mode };
 	void *ptr = req->data;
+	void *endptr = data + data_size;
 	u16 size;
 
 	BT_DBG("chan %p", chan);
@@ -3210,7 +3214,7 @@ static int l2cap_build_conf_req(struct l
 
 done:
 	if (chan->imtu != L2CAP_DEFAULT_MTU)
-		l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu);
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu, endptr - ptr);
 
 	switch (chan->mode) {
 	case L2CAP_MODE_BASIC:
@@ -3229,7 +3233,7 @@ done:
 		rfc.max_pdu_size    = 0;
 
 		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-				   (unsigned long) &rfc);
+				   (unsigned long) &rfc, endptr - ptr);
 		break;
 
 	case L2CAP_MODE_ERTM:
@@ -3249,21 +3253,21 @@ done:
 				       L2CAP_DEFAULT_TX_WINDOW);
 
 		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-				   (unsigned long) &rfc);
+				   (unsigned long) &rfc, endptr - ptr);
 
 		if (test_bit(FLAG_EFS_ENABLE, &chan->flags))
-			l2cap_add_opt_efs(&ptr, chan);
+			l2cap_add_opt_efs(&ptr, chan, endptr - ptr);
 
 		if (test_bit(FLAG_EXT_CTRL, &chan->flags))
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2,
-					   chan->tx_win);
+					   chan->tx_win, endptr - ptr);
 
 		if (chan->conn->feat_mask & L2CAP_FEAT_FCS)
 			if (chan->fcs == L2CAP_FCS_NONE ||
 			    test_bit(CONF_RECV_NO_FCS, &chan->conf_state)) {
 				chan->fcs = L2CAP_FCS_NONE;
 				l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1,
-						   chan->fcs);
+						   chan->fcs, endptr - ptr);
 			}
 		break;
 
@@ -3281,17 +3285,17 @@ done:
 		rfc.max_pdu_size = cpu_to_le16(size);
 
 		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-				   (unsigned long) &rfc);
+				   (unsigned long) &rfc, endptr - ptr);
 
 		if (test_bit(FLAG_EFS_ENABLE, &chan->flags))
-			l2cap_add_opt_efs(&ptr, chan);
+			l2cap_add_opt_efs(&ptr, chan, endptr - ptr);
 
 		if (chan->conn->feat_mask & L2CAP_FEAT_FCS)
 			if (chan->fcs == L2CAP_FCS_NONE ||
 			    test_bit(CONF_RECV_NO_FCS, &chan->conf_state)) {
 				chan->fcs = L2CAP_FCS_NONE;
 				l2cap_add_conf_opt(&ptr, L2CAP_CONF_FCS, 1,
-						   chan->fcs);
+						   chan->fcs, endptr - ptr);
 			}
 		break;
 	}
@@ -3302,10 +3306,11 @@ done:
 	return ptr - data;
 }
 
-static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
+static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data_size)
 {
 	struct l2cap_conf_rsp *rsp = data;
 	void *ptr = rsp->data;
+	void *endptr = data + data_size;
 	void *req = chan->conf_req;
 	int len = chan->conf_len;
 	int type, hint, olen;
@@ -3407,7 +3412,7 @@ done:
 			return -ECONNREFUSED;
 
 		l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-				   (unsigned long) &rfc);
+				   (unsigned long) &rfc, endptr - ptr);
 	}
 
 	if (result == L2CAP_CONF_SUCCESS) {
@@ -3420,7 +3425,7 @@ done:
 			chan->omtu = mtu;
 			set_bit(CONF_MTU_DONE, &chan->conf_state);
 		}
-		l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->omtu);
+		l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->omtu, endptr - ptr);
 
 		if (remote_efs) {
 			if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
@@ -3434,7 +3439,7 @@ done:
 
 				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
 						   sizeof(efs),
-						   (unsigned long) &efs);
+						   (unsigned long) &efs, endptr - ptr);
 			} else {
 				/* Send PENDING Conf Rsp */
 				result = L2CAP_CONF_PENDING;
@@ -3467,7 +3472,7 @@ done:
 			set_bit(CONF_MODE_DONE, &chan->conf_state);
 
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
-					   sizeof(rfc), (unsigned long) &rfc);
+					   sizeof(rfc), (unsigned long) &rfc, endptr - ptr);
 
 			if (test_bit(FLAG_EFS_ENABLE, &chan->flags)) {
 				chan->remote_id = efs.id;
@@ -3481,7 +3486,7 @@ done:
 					le32_to_cpu(efs.sdu_itime);
 				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
 						   sizeof(efs),
-						   (unsigned long) &efs);
+						   (unsigned long) &efs, endptr - ptr);
 			}
 			break;
 
@@ -3495,7 +3500,7 @@ done:
 			set_bit(CONF_MODE_DONE, &chan->conf_state);
 
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
-					   (unsigned long) &rfc);
+					   (unsigned long) &rfc, endptr - ptr);
 
 			break;
 
@@ -3517,10 +3522,11 @@ done:
 }
 
 static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
-				void *data, u16 *result)
+				void *data, size_t size, u16 *result)
 {
 	struct l2cap_conf_req *req = data;
 	void *ptr = req->data;
+	void *endptr = data + size;
 	int type, olen;
 	unsigned long val;
 	struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_BASIC };
@@ -3538,13 +3544,13 @@ static int l2cap_parse_conf_rsp(struct l
 				chan->imtu = L2CAP_DEFAULT_MIN_MTU;
 			} else
 				chan->imtu = val;
-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu);
+			l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu, endptr - ptr);
 			break;
 
 		case L2CAP_CONF_FLUSH_TO:
 			chan->flush_to = val;
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO,
-					   2, chan->flush_to);
+					   2, chan->flush_to, endptr - ptr);
 			break;
 
 		case L2CAP_CONF_RFC:
@@ -3558,13 +3564,13 @@ static int l2cap_parse_conf_rsp(struct l
 			chan->fcs = 0;
 
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
-					   sizeof(rfc), (unsigned long) &rfc);
+					   sizeof(rfc), (unsigned long) &rfc, endptr - ptr);
 			break;
 
 		case L2CAP_CONF_EWS:
 			chan->ack_win = min_t(u16, val, chan->ack_win);
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2,
-					   chan->tx_win);
+					   chan->tx_win, endptr - ptr);
 			break;
 
 		case L2CAP_CONF_EFS:
@@ -3577,7 +3583,7 @@ static int l2cap_parse_conf_rsp(struct l
 				return -ECONNREFUSED;
 
 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs),
-					   (unsigned long) &efs);
+					   (unsigned long) &efs, endptr - ptr);
 			break;
 
 		case L2CAP_CONF_FCS:
@@ -3682,7 +3688,7 @@ void __l2cap_connect_rsp_defer(struct l2
 		return;
 
 	l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-		       l2cap_build_conf_req(chan, buf), buf);
+		       l2cap_build_conf_req(chan, buf, sizeof(buf)), buf);
 	chan->num_conf_req++;
 }
 
@@ -3890,7 +3896,7 @@ sendresp:
 		u8 buf[128];
 		set_bit(CONF_REQ_SENT, &chan->conf_state);
 		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-			       l2cap_build_conf_req(chan, buf), buf);
+			       l2cap_build_conf_req(chan, buf, sizeof(buf)), buf);
 		chan->num_conf_req++;
 	}
 
@@ -3968,7 +3974,7 @@ static int l2cap_connect_create_rsp(stru
 			break;
 
 		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-			       l2cap_build_conf_req(chan, req), req);
+			       l2cap_build_conf_req(chan, req, sizeof(req)), req);
 		chan->num_conf_req++;
 		break;
 
@@ -4080,7 +4086,7 @@ static inline int l2cap_config_req(struc
 	}
 
 	/* Complete config. */
-	len = l2cap_parse_conf_req(chan, rsp);
+	len = l2cap_parse_conf_req(chan, rsp, sizeof(rsp));
 	if (len < 0) {
 		l2cap_send_disconn_req(chan, ECONNRESET);
 		goto unlock;
@@ -4114,7 +4120,7 @@ static inline int l2cap_config_req(struc
 	if (!test_and_set_bit(CONF_REQ_SENT, &chan->conf_state)) {
 		u8 buf[64];
 		l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
-			       l2cap_build_conf_req(chan, buf), buf);
+			       l2cap_build_conf_req(chan, buf, sizeof(buf)), buf);
 		chan->num_conf_req++;
 	}
 
@@ -4174,7 +4180,7 @@ static inline int l2cap_config_rsp(struc
 			char buf[64];
 
 			len = l2cap_parse_conf_rsp(chan, rsp->data, len,
-						   buf, &result);
+						   buf, sizeof(buf), &result);
 			if (len < 0) {
 				l2cap_send_disconn_req(chan, ECONNRESET);
 				goto done;
@@ -4204,7 +4210,7 @@ static inline int l2cap_config_rsp(struc
 			/* throw out any old stored conf requests */
 			result = L2CAP_CONF_SUCCESS;
 			len = l2cap_parse_conf_rsp(chan, rsp->data, len,
-						   req, &result);
+						   req, sizeof(req), &result);
 			if (len < 0) {
 				l2cap_send_disconn_req(chan, ECONNRESET);
 				goto done;
@@ -4781,7 +4787,7 @@ static void l2cap_do_create(struct l2cap
 			set_bit(CONF_REQ_SENT, &chan->conf_state);
 			l2cap_send_cmd(chan->conn, l2cap_get_ident(chan->conn),
 				       L2CAP_CONF_REQ,
-				       l2cap_build_conf_req(chan, buf), buf);
+				       l2cap_build_conf_req(chan, buf, sizeof(buf)), buf);
 			chan->num_conf_req++;
 		}
 	}
@@ -7457,7 +7463,7 @@ static void l2cap_security_cfm(struct hc
 				set_bit(CONF_REQ_SENT, &chan->conf_state);
 				l2cap_send_cmd(conn, l2cap_get_ident(conn),
 					       L2CAP_CONF_REQ,
-					       l2cap_build_conf_req(chan, buf),
+					       l2cap_build_conf_req(chan, buf, sizeof(buf)),
 					       buf);
 				chan->num_conf_req++;
 			}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bluetooth/smp.c linux-libre-4.9.52-gnu/net/bluetooth/smp.c
--- linux-libre-4.9-gnu/net/bluetooth/smp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bluetooth/smp.c	2017-09-27 08:40:05.000000000 -0400
@@ -23,6 +23,7 @@
 #include <linux/debugfs.h>
 #include <linux/scatterlist.h>
 #include <linux/crypto.h>
+#include <crypto/algapi.h>
 #include <crypto/b128ops.h>
 #include <crypto/hash.h>
 
@@ -506,7 +507,7 @@ bool smp_irk_matches(struct hci_dev *hde
 	if (err)
 		return false;
 
-	return !memcmp(bdaddr->b, hash, 3);
+	return !crypto_memneq(bdaddr->b, hash, 3);
 }
 
 int smp_generate_rpa(struct hci_dev *hdev, const u8 irk[16], bdaddr_t *rpa)
@@ -559,7 +560,7 @@ int smp_generate_oob(struct hci_dev *hde
 			/* This is unlikely, but we need to check that
 			 * we didn't accidentially generate a debug key.
 			 */
-			if (memcmp(smp->local_sk, debug_sk, 32))
+			if (crypto_memneq(smp->local_sk, debug_sk, 32))
 				break;
 		}
 		smp->debug_key = false;
@@ -973,7 +974,7 @@ static u8 smp_random(struct smp_chan *sm
 	if (ret)
 		return SMP_UNSPECIFIED;
 
-	if (memcmp(smp->pcnf, confirm, sizeof(smp->pcnf)) != 0) {
+	if (crypto_memneq(smp->pcnf, confirm, sizeof(smp->pcnf))) {
 		BT_ERR("Pairing failed (confirmation values mismatch)");
 		return SMP_CONFIRM_FAILED;
 	}
@@ -1473,7 +1474,7 @@ static u8 sc_passkey_round(struct smp_ch
 			   smp->rrnd, r, cfm))
 			return SMP_UNSPECIFIED;
 
-		if (memcmp(smp->pcnf, cfm, 16))
+		if (crypto_memneq(smp->pcnf, cfm, 16))
 			return SMP_CONFIRM_FAILED;
 
 		smp->passkey_round++;
@@ -1857,7 +1858,7 @@ static u8 sc_send_public_key(struct smp_
 			/* This is unlikely, but we need to check that
 			 * we didn't accidentially generate a debug key.
 			 */
-			if (memcmp(smp->local_sk, debug_sk, 32))
+			if (crypto_memneq(smp->local_sk, debug_sk, 32))
 				break;
 		}
 	}
@@ -2122,7 +2123,7 @@ static u8 smp_cmd_pairing_random(struct
 		if (err)
 			return SMP_UNSPECIFIED;
 
-		if (memcmp(smp->pcnf, cfm, 16))
+		if (crypto_memneq(smp->pcnf, cfm, 16))
 			return SMP_CONFIRM_FAILED;
 	} else {
 		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd),
@@ -2603,7 +2604,7 @@ static int smp_cmd_public_key(struct l2c
 		if (err)
 			return SMP_UNSPECIFIED;
 
-		if (memcmp(cfm.confirm_val, smp->pcnf, 16))
+		if (crypto_memneq(cfm.confirm_val, smp->pcnf, 16))
 			return SMP_CONFIRM_FAILED;
 	}
 
@@ -2636,7 +2637,7 @@ static int smp_cmd_public_key(struct l2c
 	else
 		hcon->pending_sec_level = BT_SECURITY_FIPS;
 
-	if (!memcmp(debug_pk, smp->remote_pk, 64))
+	if (!crypto_memneq(debug_pk, smp->remote_pk, 64))
 		set_bit(SMP_FLAG_DEBUG_KEY, &smp->flags);
 
 	if (smp->method == DSP_PASSKEY) {
@@ -2735,7 +2736,7 @@ static int smp_cmd_dhkey_check(struct l2
 	if (err)
 		return SMP_UNSPECIFIED;
 
-	if (memcmp(check->e, e, 16))
+	if (crypto_memneq(check->e, e, 16))
 		return SMP_DHKEY_CHECK_FAILED;
 
 	if (!hcon->out) {
@@ -3446,7 +3447,7 @@ static int __init test_ah(struct crypto_
 	if (err)
 		return err;
 
-	if (memcmp(res, exp, 3))
+	if (crypto_memneq(res, exp, 3))
 		return -EINVAL;
 
 	return 0;
@@ -3476,7 +3477,7 @@ static int __init test_c1(struct crypto_
 	if (err)
 		return err;
 
-	if (memcmp(res, exp, 16))
+	if (crypto_memneq(res, exp, 16))
 		return -EINVAL;
 
 	return 0;
@@ -3501,7 +3502,7 @@ static int __init test_s1(struct crypto_
 	if (err)
 		return err;
 
-	if (memcmp(res, exp, 16))
+	if (crypto_memneq(res, exp, 16))
 		return -EINVAL;
 
 	return 0;
@@ -3533,7 +3534,7 @@ static int __init test_f4(struct crypto_
 	if (err)
 		return err;
 
-	if (memcmp(res, exp, 16))
+	if (crypto_memneq(res, exp, 16))
 		return -EINVAL;
 
 	return 0;
@@ -3567,10 +3568,10 @@ static int __init test_f5(struct crypto_
 	if (err)
 		return err;
 
-	if (memcmp(mackey, exp_mackey, 16))
+	if (crypto_memneq(mackey, exp_mackey, 16))
 		return -EINVAL;
 
-	if (memcmp(ltk, exp_ltk, 16))
+	if (crypto_memneq(ltk, exp_ltk, 16))
 		return -EINVAL;
 
 	return 0;
@@ -3603,7 +3604,7 @@ static int __init test_f6(struct crypto_
 	if (err)
 		return err;
 
-	if (memcmp(res, exp, 16))
+	if (crypto_memneq(res, exp, 16))
 		return -EINVAL;
 
 	return 0;
@@ -3657,7 +3658,7 @@ static int __init test_h6(struct crypto_
 	if (err)
 		return err;
 
-	if (memcmp(res, exp, 16))
+	if (crypto_memneq(res, exp, 16))
 		return -EINVAL;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_device.c linux-libre-4.9.52-gnu/net/bridge/br_device.c
--- linux-libre-4.9-gnu/net/bridge/br_device.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_device.c	2017-09-27 08:40:05.000000000 -0400
@@ -53,6 +53,9 @@ netdev_tx_t br_dev_xmit(struct sk_buff *
 	brstats->tx_bytes += skb->len;
 	u64_stats_update_end(&brstats->syncp);
 
+#ifdef CONFIG_NET_SWITCHDEV
+	skb->offload_fwd_mark = 0;
+#endif
 	BR_INPUT_SKB_CB(skb)->brdev = dev;
 
 	skb_reset_mac_header(skb);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_forward.c linux-libre-4.9.52-gnu/net/bridge/br_forward.c
--- linux-libre-4.9-gnu/net/bridge/br_forward.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_forward.c	2017-09-27 08:40:05.000000000 -0400
@@ -186,8 +186,9 @@ void br_flood(struct net_bridge *br, str
 		/* Do not flood unicast traffic to ports that turn it off */
 		if (pkt_type == BR_PKT_UNICAST && !(p->flags & BR_FLOOD))
 			continue;
+		/* Do not flood if mc off, except for traffic we originate */
 		if (pkt_type == BR_PKT_MULTICAST &&
-		    !(p->flags & BR_MCAST_FLOOD))
+		    !(p->flags & BR_MCAST_FLOOD) && skb->dev != br->dev)
 			continue;
 
 		/* Do not flood to ports that enable proxy ARP */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_input.c linux-libre-4.9.52-gnu/net/bridge/br_input.c
--- linux-libre-4.9-gnu/net/bridge/br_input.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_input.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,6 +29,7 @@ EXPORT_SYMBOL(br_should_route_hook);
 static int
 br_netif_receive_skb(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
+	br_drop_fake_rtable(skb);
 	return netif_receive_skb(skb);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_mdb.c linux-libre-4.9.52-gnu/net/bridge/br_mdb.c
--- linux-libre-4.9-gnu/net/bridge/br_mdb.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_mdb.c	2017-09-27 08:40:05.000000000 -0400
@@ -323,7 +323,8 @@ static void __br_mdb_notify(struct net_d
 			__mdb_entry_to_br_ip(entry, &complete_info->ip);
 			mdb.obj.complete_priv = complete_info;
 			mdb.obj.complete = br_mdb_complete;
-			switchdev_port_obj_add(port_dev, &mdb.obj);
+			if (switchdev_port_obj_add(port_dev, &mdb.obj))
+				kfree(complete_info);
 		}
 	} else if (port_dev && type == RTM_DELMDB) {
 		switchdev_port_obj_del(port_dev, &mdb.obj);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_netfilter_hooks.c linux-libre-4.9.52-gnu/net/bridge/br_netfilter_hooks.c
--- linux-libre-4.9-gnu/net/bridge/br_netfilter_hooks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_netfilter_hooks.c	2017-09-27 08:40:05.000000000 -0400
@@ -399,7 +399,7 @@ bridged_dnat:
 				br_nf_hook_thresh(NF_BR_PRE_ROUTING,
 						  net, sk, skb, skb->dev,
 						  NULL,
-						  br_nf_pre_routing_finish);
+						  br_nf_pre_routing_finish_bridge);
 				return 0;
 			}
 			ether_addr_copy(eth_hdr(skb)->h_dest, dev->dev_addr);
@@ -521,21 +521,6 @@ static unsigned int br_nf_pre_routing(vo
 }
 
 
-/* PF_BRIDGE/LOCAL_IN ************************************************/
-/* The packet is locally destined, which requires a real
- * dst_entry, so detach the fake one.  On the way up, the
- * packet would pass through PRE_ROUTING again (which already
- * took place when the packet entered the bridge), but we
- * register an IPv4 PRE_ROUTING 'sabotage' hook that will
- * prevent this from happening. */
-static unsigned int br_nf_local_in(void *priv,
-				   struct sk_buff *skb,
-				   const struct nf_hook_state *state)
-{
-	br_drop_fake_rtable(skb);
-	return NF_ACCEPT;
-}
-
 /* PF_BRIDGE/FORWARD *************************************************/
 static int br_nf_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
@@ -906,12 +891,6 @@ static struct nf_hook_ops br_nf_ops[] __
 		.priority = NF_BR_PRI_BRNF,
 	},
 	{
-		.hook = br_nf_local_in,
-		.pf = NFPROTO_BRIDGE,
-		.hooknum = NF_BR_LOCAL_IN,
-		.priority = NF_BR_PRI_BRNF,
-	},
-	{
 		.hook = br_nf_forward_ip,
 		.pf = NFPROTO_BRIDGE,
 		.hooknum = NF_BR_FORWARD,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_netlink.c linux-libre-4.9.52-gnu/net/bridge/br_netlink.c
--- linux-libre-4.9-gnu/net/bridge/br_netlink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_netlink.c	2017-09-27 08:40:05.000000000 -0400
@@ -776,23 +776,16 @@ static int br_validate(struct nlattr *tb
 			return -EPROTONOSUPPORT;
 		}
 	}
-#endif
 
-	return 0;
-}
-
-static int br_dev_newlink(struct net *src_net, struct net_device *dev,
-			  struct nlattr *tb[], struct nlattr *data[])
-{
-	struct net_bridge *br = netdev_priv(dev);
+	if (data[IFLA_BR_VLAN_DEFAULT_PVID]) {
+		__u16 defpvid = nla_get_u16(data[IFLA_BR_VLAN_DEFAULT_PVID]);
 
-	if (tb[IFLA_ADDRESS]) {
-		spin_lock_bh(&br->lock);
-		br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
-		spin_unlock_bh(&br->lock);
+		if (defpvid >= VLAN_VID_MASK)
+			return -EINVAL;
 	}
+#endif
 
-	return register_netdevice(dev);
+	return 0;
 }
 
 static int br_port_slave_changelink(struct net_device *brdev,
@@ -1093,6 +1086,25 @@ static int br_changelink(struct net_devi
 	return 0;
 }
 
+static int br_dev_newlink(struct net *src_net, struct net_device *dev,
+			  struct nlattr *tb[], struct nlattr *data[])
+{
+	struct net_bridge *br = netdev_priv(dev);
+	int err;
+
+	if (tb[IFLA_ADDRESS]) {
+		spin_lock_bh(&br->lock);
+		br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS]));
+		spin_unlock_bh(&br->lock);
+	}
+
+	err = br_changelink(dev, tb, data);
+	if (err)
+		return err;
+
+	return register_netdevice(dev);
+}
+
 static size_t br_get_size(const struct net_device *brdev)
 {
 	return nla_total_size(sizeof(u32)) +	/* IFLA_BR_FORWARD_DELAY  */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_stp_if.c linux-libre-4.9.52-gnu/net/bridge/br_stp_if.c
--- linux-libre-4.9-gnu/net/bridge/br_stp_if.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_stp_if.c	2017-09-27 08:40:05.000000000 -0400
@@ -185,6 +185,8 @@ static void br_stp_start(struct net_brid
 		br_debug(br, "using kernel STP\n");
 
 		/* To start timers on any ports left in blocking */
+		if (br->dev->flags & IFF_UP)
+			mod_timer(&br->hello_timer, jiffies + br->hello_time);
 		br_port_state_selection(br);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/bridge/br_stp_timer.c linux-libre-4.9.52-gnu/net/bridge/br_stp_timer.c
--- linux-libre-4.9-gnu/net/bridge/br_stp_timer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/bridge/br_stp_timer.c	2017-09-27 08:40:05.000000000 -0400
@@ -40,7 +40,7 @@ static void br_hello_timer_expired(unsig
 	if (br->dev->flags & IFF_UP) {
 		br_config_bpdu_generation(br);
 
-		if (br->stp_enabled != BR_USER_STP)
+		if (br->stp_enabled == BR_KERNEL_STP)
 			mod_timer(&br->hello_timer,
 				  round_jiffies(jiffies + br->hello_time));
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/caif/cfpkt_skbuff.c linux-libre-4.9.52-gnu/net/caif/cfpkt_skbuff.c
--- linux-libre-4.9-gnu/net/caif/cfpkt_skbuff.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/caif/cfpkt_skbuff.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,11 +81,7 @@ static struct cfpkt *cfpkt_create_pfx(u1
 {
 	struct sk_buff *skb;
 
-	if (likely(in_interrupt()))
-		skb = alloc_skb(len + pfx, GFP_ATOMIC);
-	else
-		skb = alloc_skb(len + pfx, GFP_KERNEL);
-
+	skb = alloc_skb(len + pfx, GFP_ATOMIC);
 	if (unlikely(skb == NULL))
 		return NULL;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/can/af_can.c linux-libre-4.9.52-gnu/net/can/af_can.c
--- linux-libre-4.9-gnu/net/can/af_can.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/can/af_can.c	2017-09-27 08:40:05.000000000 -0400
@@ -445,6 +445,7 @@ static struct hlist_head *find_rcv_list(
  * @func: callback function on filter match
  * @data: returned parameter for callback function
  * @ident: string for calling module identification
+ * @sk: socket pointer (might be NULL)
  *
  * Description:
  *  Invokes the callback function with the received sk_buff and the given
@@ -468,7 +469,7 @@ static struct hlist_head *find_rcv_list(
  */
 int can_rx_register(struct net_device *dev, canid_t can_id, canid_t mask,
 		    void (*func)(struct sk_buff *, void *), void *data,
-		    char *ident)
+		    char *ident, struct sock *sk)
 {
 	struct receiver *r;
 	struct hlist_head *rl;
@@ -496,6 +497,7 @@ int can_rx_register(struct net_device *d
 		r->func    = func;
 		r->data    = data;
 		r->ident   = ident;
+		r->sk      = sk;
 
 		hlist_add_head_rcu(&r->list, rl);
 		d->entries++;
@@ -520,8 +522,11 @@ EXPORT_SYMBOL(can_rx_register);
 static void can_rx_delete_receiver(struct rcu_head *rp)
 {
 	struct receiver *r = container_of(rp, struct receiver, rcu);
+	struct sock *sk = r->sk;
 
 	kmem_cache_free(rcv_cache, r);
+	if (sk)
+		sock_put(sk);
 }
 
 /**
@@ -596,8 +601,11 @@ void can_rx_unregister(struct net_device
 	spin_unlock(&can_rcvlists_lock);
 
 	/* schedule the receiver item for deletion */
-	if (r)
+	if (r) {
+		if (r->sk)
+			sock_hold(r->sk);
 		call_rcu(&r->rcu, can_rx_delete_receiver);
+	}
 }
 EXPORT_SYMBOL(can_rx_unregister);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/can/af_can.h linux-libre-4.9.52-gnu/net/can/af_can.h
--- linux-libre-4.9-gnu/net/can/af_can.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/can/af_can.h	2017-09-27 08:40:05.000000000 -0400
@@ -50,13 +50,14 @@
 
 struct receiver {
 	struct hlist_node list;
-	struct rcu_head rcu;
 	canid_t can_id;
 	canid_t mask;
 	unsigned long matches;
 	void (*func)(struct sk_buff *, void *);
 	void *data;
 	char *ident;
+	struct sock *sk;
+	struct rcu_head rcu;
 };
 
 #define CAN_SFF_RCV_ARRAY_SZ (1 << CAN_SFF_ID_BITS)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/can/bcm.c linux-libre-4.9.52-gnu/net/can/bcm.c
--- linux-libre-4.9-gnu/net/can/bcm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/can/bcm.c	2017-09-27 08:40:05.000000000 -0400
@@ -734,14 +734,23 @@ static struct bcm_op *bcm_find_op(struct
 
 static void bcm_remove_op(struct bcm_op *op)
 {
-	hrtimer_cancel(&op->timer);
-	hrtimer_cancel(&op->thrtimer);
-
-	if (op->tsklet.func)
-		tasklet_kill(&op->tsklet);
+	if (op->tsklet.func) {
+		while (test_bit(TASKLET_STATE_SCHED, &op->tsklet.state) ||
+		       test_bit(TASKLET_STATE_RUN, &op->tsklet.state) ||
+		       hrtimer_active(&op->timer)) {
+			hrtimer_cancel(&op->timer);
+			tasklet_kill(&op->tsklet);
+		}
+	}
 
-	if (op->thrtsklet.func)
-		tasklet_kill(&op->thrtsklet);
+	if (op->thrtsklet.func) {
+		while (test_bit(TASKLET_STATE_SCHED, &op->thrtsklet.state) ||
+		       test_bit(TASKLET_STATE_RUN, &op->thrtsklet.state) ||
+		       hrtimer_active(&op->thrtimer)) {
+			hrtimer_cancel(&op->thrtimer);
+			tasklet_kill(&op->thrtsklet);
+		}
+	}
 
 	if ((op->frames) && (op->frames != &op->sframe))
 		kfree(op->frames);
@@ -1216,7 +1225,7 @@ static int bcm_rx_setup(struct bcm_msg_h
 				err = can_rx_register(dev, op->can_id,
 						      REGMASK(op->can_id),
 						      bcm_rx_handler, op,
-						      "bcm");
+						      "bcm", sk);
 
 				op->rx_reg_dev = dev;
 				dev_put(dev);
@@ -1225,7 +1234,7 @@ static int bcm_rx_setup(struct bcm_msg_h
 		} else
 			err = can_rx_register(NULL, op->can_id,
 					      REGMASK(op->can_id),
-					      bcm_rx_handler, op, "bcm");
+					      bcm_rx_handler, op, "bcm", sk);
 		if (err) {
 			/* this bcm rx op is broken -> remove it */
 			list_del(&op->list);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/can/gw.c linux-libre-4.9.52-gnu/net/can/gw.c
--- linux-libre-4.9-gnu/net/can/gw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/can/gw.c	2017-09-27 08:40:05.000000000 -0400
@@ -442,7 +442,7 @@ static inline int cgw_register_filter(st
 {
 	return can_rx_register(gwj->src.dev, gwj->ccgw.filter.can_id,
 			       gwj->ccgw.filter.can_mask, can_can_gw_rcv,
-			       gwj, "gw");
+			       gwj, "gw", NULL);
 }
 
 static inline void cgw_unregister_filter(struct cgw_job *gwj)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/can/raw.c linux-libre-4.9.52-gnu/net/can/raw.c
--- linux-libre-4.9-gnu/net/can/raw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/can/raw.c	2017-09-27 08:40:05.000000000 -0400
@@ -190,7 +190,7 @@ static int raw_enable_filters(struct net
 	for (i = 0; i < count; i++) {
 		err = can_rx_register(dev, filter[i].can_id,
 				      filter[i].can_mask,
-				      raw_rcv, sk, "raw");
+				      raw_rcv, sk, "raw", sk);
 		if (err) {
 			/* clean up successfully registered filters */
 			while (--i >= 0)
@@ -211,7 +211,7 @@ static int raw_enable_errfilter(struct n
 
 	if (err_mask)
 		err = can_rx_register(dev, 0, err_mask | CAN_ERR_FLAG,
-				      raw_rcv, sk, "raw");
+				      raw_rcv, sk, "raw", sk);
 
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ceph/auth_x.c linux-libre-4.9.52-gnu/net/ceph/auth_x.c
--- linux-libre-4.9-gnu/net/ceph/auth_x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ceph/auth_x.c	2017-09-27 08:40:05.000000000 -0400
@@ -39,56 +39,58 @@ static int ceph_x_should_authenticate(st
 	return need != 0;
 }
 
+static int ceph_x_encrypt_offset(void)
+{
+	return sizeof(u32) + sizeof(struct ceph_x_encrypt_header);
+}
+
 static int ceph_x_encrypt_buflen(int ilen)
 {
-	return sizeof(struct ceph_x_encrypt_header) + ilen + 16 +
-		sizeof(u32);
+	return ceph_x_encrypt_offset() + ilen + 16;
 }
 
-static int ceph_x_encrypt(struct ceph_crypto_key *secret,
-			  void *ibuf, int ilen, void *obuf, size_t olen)
+static int ceph_x_encrypt(struct ceph_crypto_key *secret, void *buf,
+			  int buf_len, int plaintext_len)
 {
-	struct ceph_x_encrypt_header head = {
-		.struct_v = 1,
-		.magic = cpu_to_le64(CEPHX_ENC_MAGIC)
-	};
-	size_t len = olen - sizeof(u32);
+	struct ceph_x_encrypt_header *hdr = buf + sizeof(u32);
+	int ciphertext_len;
 	int ret;
 
-	ret = ceph_encrypt2(secret, obuf + sizeof(u32), &len,
-			    &head, sizeof(head), ibuf, ilen);
+	hdr->struct_v = 1;
+	hdr->magic = cpu_to_le64(CEPHX_ENC_MAGIC);
+
+	ret = ceph_crypt(secret, true, buf + sizeof(u32), buf_len - sizeof(u32),
+			 plaintext_len + sizeof(struct ceph_x_encrypt_header),
+			 &ciphertext_len);
 	if (ret)
 		return ret;
-	ceph_encode_32(&obuf, len);
-	return len + sizeof(u32);
+
+	ceph_encode_32(&buf, ciphertext_len);
+	return sizeof(u32) + ciphertext_len;
 }
 
-static int ceph_x_decrypt(struct ceph_crypto_key *secret,
-			  void **p, void *end, void **obuf, size_t olen)
+static int ceph_x_decrypt(struct ceph_crypto_key *secret, void **p, void *end)
 {
-	struct ceph_x_encrypt_header head;
-	size_t head_len = sizeof(head);
-	int len, ret;
-
-	len = ceph_decode_32(p);
-	if (*p + len > end)
-		return -EINVAL;
+	struct ceph_x_encrypt_header *hdr = *p + sizeof(u32);
+	int ciphertext_len, plaintext_len;
+	int ret;
 
-	dout("ceph_x_decrypt len %d\n", len);
-	if (*obuf == NULL) {
-		*obuf = kmalloc(len, GFP_NOFS);
-		if (!*obuf)
-			return -ENOMEM;
-		olen = len;
-	}
+	ceph_decode_32_safe(p, end, ciphertext_len, e_inval);
+	ceph_decode_need(p, end, ciphertext_len, e_inval);
 
-	ret = ceph_decrypt2(secret, &head, &head_len, *obuf, &olen, *p, len);
+	ret = ceph_crypt(secret, false, *p, end - *p, ciphertext_len,
+			 &plaintext_len);
 	if (ret)
 		return ret;
-	if (head.struct_v != 1 || le64_to_cpu(head.magic) != CEPHX_ENC_MAGIC)
+
+	if (hdr->struct_v != 1 || le64_to_cpu(hdr->magic) != CEPHX_ENC_MAGIC)
 		return -EPERM;
-	*p += len;
-	return olen;
+
+	*p += ciphertext_len;
+	return plaintext_len - sizeof(struct ceph_x_encrypt_header);
+
+e_inval:
+	return -EINVAL;
 }
 
 /*
@@ -143,13 +145,10 @@ static int process_one_ticket(struct cep
 	int type;
 	u8 tkt_struct_v, blob_struct_v;
 	struct ceph_x_ticket_handler *th;
-	void *dbuf = NULL;
 	void *dp, *dend;
 	int dlen;
 	char is_enc;
 	struct timespec validity;
-	struct ceph_crypto_key old_key;
-	void *ticket_buf = NULL;
 	void *tp, *tpend;
 	void **ptp;
 	struct ceph_crypto_key new_session_key;
@@ -174,20 +173,17 @@ static int process_one_ticket(struct cep
 	}
 
 	/* blob for me */
-	dlen = ceph_x_decrypt(secret, p, end, &dbuf, 0);
-	if (dlen <= 0) {
-		ret = dlen;
+	dp = *p + ceph_x_encrypt_offset();
+	ret = ceph_x_decrypt(secret, p, end);
+	if (ret < 0)
 		goto out;
-	}
-	dout(" decrypted %d bytes\n", dlen);
-	dp = dbuf;
-	dend = dp + dlen;
+	dout(" decrypted %d bytes\n", ret);
+	dend = dp + ret;
 
 	tkt_struct_v = ceph_decode_8(&dp);
 	if (tkt_struct_v != 1)
 		goto bad;
 
-	memcpy(&old_key, &th->session_key, sizeof(old_key));
 	ret = ceph_crypto_key_decode(&new_session_key, &dp, dend);
 	if (ret)
 		goto out;
@@ -203,15 +199,13 @@ static int process_one_ticket(struct cep
 	ceph_decode_8_safe(p, end, is_enc, bad);
 	if (is_enc) {
 		/* encrypted */
-		dout(" encrypted ticket\n");
-		dlen = ceph_x_decrypt(&old_key, p, end, &ticket_buf, 0);
-		if (dlen < 0) {
-			ret = dlen;
+		tp = *p + ceph_x_encrypt_offset();
+		ret = ceph_x_decrypt(&th->session_key, p, end);
+		if (ret < 0)
 			goto out;
-		}
-		tp = ticket_buf;
+		dout(" encrypted ticket, decrypted %d bytes\n", ret);
 		ptp = &tp;
-		tpend = *ptp + dlen;
+		tpend = tp + ret;
 	} else {
 		/* unencrypted */
 		ptp = p;
@@ -242,8 +236,6 @@ static int process_one_ticket(struct cep
 	xi->have_keys |= th->service;
 
 out:
-	kfree(ticket_buf);
-	kfree(dbuf);
 	return ret;
 
 bad:
@@ -294,7 +286,7 @@ static int ceph_x_build_authorizer(struc
 {
 	int maxlen;
 	struct ceph_x_authorize_a *msg_a;
-	struct ceph_x_authorize_b msg_b;
+	struct ceph_x_authorize_b *msg_b;
 	void *p, *end;
 	int ret;
 	int ticket_blob_len =
@@ -308,8 +300,8 @@ static int ceph_x_build_authorizer(struc
 	if (ret)
 		goto out_au;
 
-	maxlen = sizeof(*msg_a) + sizeof(msg_b) +
-		ceph_x_encrypt_buflen(ticket_blob_len);
+	maxlen = sizeof(*msg_a) + ticket_blob_len +
+		ceph_x_encrypt_buflen(sizeof(*msg_b));
 	dout("  need len %d\n", maxlen);
 	if (au->buf && au->buf->alloc_len < maxlen) {
 		ceph_buffer_put(au->buf);
@@ -343,18 +335,19 @@ static int ceph_x_build_authorizer(struc
 	p += ticket_blob_len;
 	end = au->buf->vec.iov_base + au->buf->vec.iov_len;
 
+	msg_b = p + ceph_x_encrypt_offset();
+	msg_b->struct_v = 1;
 	get_random_bytes(&au->nonce, sizeof(au->nonce));
-	msg_b.struct_v = 1;
-	msg_b.nonce = cpu_to_le64(au->nonce);
-	ret = ceph_x_encrypt(&au->session_key, &msg_b, sizeof(msg_b),
-			     p, end - p);
+	msg_b->nonce = cpu_to_le64(au->nonce);
+	ret = ceph_x_encrypt(&au->session_key, p, end - p, sizeof(*msg_b));
 	if (ret < 0)
 		goto out_au;
+
 	p += ret;
+	WARN_ON(p > end);
 	au->buf->vec.iov_len = p - au->buf->vec.iov_base;
 	dout(" built authorizer nonce %llx len %d\n", au->nonce,
 	     (int)au->buf->vec.iov_len);
-	BUG_ON(au->buf->vec.iov_len > maxlen);
 	return 0;
 
 out_au:
@@ -452,8 +445,9 @@ static int ceph_x_build_request(struct c
 	if (need & CEPH_ENTITY_TYPE_AUTH) {
 		struct ceph_x_authenticate *auth = (void *)(head + 1);
 		void *p = auth + 1;
-		struct ceph_x_challenge_blob tmp;
-		char tmp_enc[40];
+		void *enc_buf = xi->auth_authorizer.enc_buf;
+		struct ceph_x_challenge_blob *blob = enc_buf +
+							ceph_x_encrypt_offset();
 		u64 *u;
 
 		if (p > end)
@@ -464,16 +458,16 @@ static int ceph_x_build_request(struct c
 
 		/* encrypt and hash */
 		get_random_bytes(&auth->client_challenge, sizeof(u64));
-		tmp.client_challenge = auth->client_challenge;
-		tmp.server_challenge = cpu_to_le64(xi->server_challenge);
-		ret = ceph_x_encrypt(&xi->secret, &tmp, sizeof(tmp),
-				     tmp_enc, sizeof(tmp_enc));
+		blob->client_challenge = auth->client_challenge;
+		blob->server_challenge = cpu_to_le64(xi->server_challenge);
+		ret = ceph_x_encrypt(&xi->secret, enc_buf, CEPHX_AU_ENC_BUF_LEN,
+				     sizeof(*blob));
 		if (ret < 0)
 			return ret;
 
 		auth->struct_v = 1;
 		auth->key = 0;
-		for (u = (u64 *)tmp_enc; u + 1 <= (u64 *)(tmp_enc + ret); u++)
+		for (u = (u64 *)enc_buf; u + 1 <= (u64 *)(enc_buf + ret); u++)
 			auth->key ^= *(__le64 *)u;
 		dout(" server_challenge %llx client_challenge %llx key %llx\n",
 		     xi->server_challenge, le64_to_cpu(auth->client_challenge),
@@ -600,8 +594,8 @@ static int ceph_x_create_authorizer(
 	auth->authorizer = (struct ceph_authorizer *) au;
 	auth->authorizer_buf = au->buf->vec.iov_base;
 	auth->authorizer_buf_len = au->buf->vec.iov_len;
-	auth->authorizer_reply_buf = au->reply_buf;
-	auth->authorizer_reply_buf_len = sizeof (au->reply_buf);
+	auth->authorizer_reply_buf = au->enc_buf;
+	auth->authorizer_reply_buf_len = CEPHX_AU_ENC_BUF_LEN;
 	auth->sign_message = ac->ops->sign_message;
 	auth->check_message_signature = ac->ops->check_message_signature;
 
@@ -632,24 +626,22 @@ static int ceph_x_verify_authorizer_repl
 					  struct ceph_authorizer *a, size_t len)
 {
 	struct ceph_x_authorizer *au = (void *)a;
-	int ret = 0;
-	struct ceph_x_authorize_reply reply;
-	void *preply = &reply;
-	void *p = au->reply_buf;
-	void *end = p + sizeof(au->reply_buf);
+	void *p = au->enc_buf;
+	struct ceph_x_authorize_reply *reply = p + ceph_x_encrypt_offset();
+	int ret;
 
-	ret = ceph_x_decrypt(&au->session_key, &p, end, &preply, sizeof(reply));
+	ret = ceph_x_decrypt(&au->session_key, &p, p + CEPHX_AU_ENC_BUF_LEN);
 	if (ret < 0)
 		return ret;
-	if (ret != sizeof(reply))
+	if (ret != sizeof(*reply))
 		return -EPERM;
 
-	if (au->nonce + 1 != le64_to_cpu(reply.nonce_plus_one))
+	if (au->nonce + 1 != le64_to_cpu(reply->nonce_plus_one))
 		ret = -EPERM;
 	else
 		ret = 0;
 	dout("verify_authorizer_reply nonce %llx got %llx ret %d\n",
-	     au->nonce, le64_to_cpu(reply.nonce_plus_one), ret);
+	     au->nonce, le64_to_cpu(reply->nonce_plus_one), ret);
 	return ret;
 }
 
@@ -704,35 +696,48 @@ static void ceph_x_invalidate_authorizer
 	invalidate_ticket(ac, CEPH_ENTITY_TYPE_AUTH);
 }
 
-static int calcu_signature(struct ceph_x_authorizer *au,
-			   struct ceph_msg *msg, __le64 *sig)
+static int calc_signature(struct ceph_x_authorizer *au, struct ceph_msg *msg,
+			  __le64 *psig)
 {
+	void *enc_buf = au->enc_buf;
+	struct {
+		__le32 len;
+		__le32 header_crc;
+		__le32 front_crc;
+		__le32 middle_crc;
+		__le32 data_crc;
+	} __packed *sigblock = enc_buf + ceph_x_encrypt_offset();
 	int ret;
-	char tmp_enc[40];
-	__le32 tmp[5] = {
-		cpu_to_le32(16), msg->hdr.crc, msg->footer.front_crc,
-		msg->footer.middle_crc, msg->footer.data_crc,
-	};
-	ret = ceph_x_encrypt(&au->session_key, &tmp, sizeof(tmp),
-			     tmp_enc, sizeof(tmp_enc));
+
+	sigblock->len = cpu_to_le32(4*sizeof(u32));
+	sigblock->header_crc = msg->hdr.crc;
+	sigblock->front_crc = msg->footer.front_crc;
+	sigblock->middle_crc = msg->footer.middle_crc;
+	sigblock->data_crc =  msg->footer.data_crc;
+	ret = ceph_x_encrypt(&au->session_key, enc_buf, CEPHX_AU_ENC_BUF_LEN,
+			     sizeof(*sigblock));
 	if (ret < 0)
 		return ret;
-	*sig = *(__le64*)(tmp_enc + 4);
+
+	*psig = *(__le64 *)(enc_buf + sizeof(u32));
 	return 0;
 }
 
 static int ceph_x_sign_message(struct ceph_auth_handshake *auth,
 			       struct ceph_msg *msg)
 {
+	__le64 sig;
 	int ret;
 
 	if (ceph_test_opt(from_msgr(msg->con->msgr), NOMSGSIGN))
 		return 0;
 
-	ret = calcu_signature((struct ceph_x_authorizer *)auth->authorizer,
-			      msg, &msg->footer.sig);
-	if (ret < 0)
+	ret = calc_signature((struct ceph_x_authorizer *)auth->authorizer,
+			     msg, &sig);
+	if (ret)
 		return ret;
+
+	msg->footer.sig = sig;
 	msg->footer.flags |= CEPH_MSG_FOOTER_SIGNED;
 	return 0;
 }
@@ -746,9 +751,9 @@ static int ceph_x_check_message_signatur
 	if (ceph_test_opt(from_msgr(msg->con->msgr), NOMSGSIGN))
 		return 0;
 
-	ret = calcu_signature((struct ceph_x_authorizer *)auth->authorizer,
-			      msg, &sig_check);
-	if (ret < 0)
+	ret = calc_signature((struct ceph_x_authorizer *)auth->authorizer,
+			     msg, &sig_check);
+	if (ret)
 		return ret;
 	if (sig_check == msg->footer.sig)
 		return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ceph/auth_x.h linux-libre-4.9.52-gnu/net/ceph/auth_x.h
--- linux-libre-4.9-gnu/net/ceph/auth_x.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ceph/auth_x.h	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,7 @@ struct ceph_x_ticket_handler {
 	unsigned long renew_after, expires;
 };
 
+#define CEPHX_AU_ENC_BUF_LEN	128  /* big enough for encrypted blob */
 
 struct ceph_x_authorizer {
 	struct ceph_authorizer base;
@@ -32,7 +33,7 @@ struct ceph_x_authorizer {
 	unsigned int service;
 	u64 nonce;
 	u64 secret_id;
-	char reply_buf[128];  /* big enough for encrypted blob */
+	char enc_buf[CEPHX_AU_ENC_BUF_LEN] __aligned(8);
 };
 
 struct ceph_x_info {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ceph/crypto.c linux-libre-4.9.52-gnu/net/ceph/crypto.c
--- linux-libre-4.9-gnu/net/ceph/crypto.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ceph/crypto.c	2017-09-27 08:40:05.000000000 -0400
@@ -13,14 +13,60 @@
 #include <linux/ceph/decode.h>
 #include "crypto.h"
 
+/*
+ * Set ->key and ->tfm.  The rest of the key should be filled in before
+ * this function is called.
+ */
+static int set_secret(struct ceph_crypto_key *key, void *buf)
+{
+	unsigned int noio_flag;
+	int ret;
+
+	key->key = NULL;
+	key->tfm = NULL;
+
+	switch (key->type) {
+	case CEPH_CRYPTO_NONE:
+		return 0; /* nothing to do */
+	case CEPH_CRYPTO_AES:
+		break;
+	default:
+		return -ENOTSUPP;
+	}
+
+	WARN_ON(!key->len);
+	key->key = kmemdup(buf, key->len, GFP_NOIO);
+	if (!key->key) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	/* crypto_alloc_skcipher() allocates with GFP_KERNEL */
+	noio_flag = memalloc_noio_save();
+	key->tfm = crypto_alloc_skcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
+	memalloc_noio_restore(noio_flag);
+	if (IS_ERR(key->tfm)) {
+		ret = PTR_ERR(key->tfm);
+		key->tfm = NULL;
+		goto fail;
+	}
+
+	ret = crypto_skcipher_setkey(key->tfm, key->key, key->len);
+	if (ret)
+		goto fail;
+
+	return 0;
+
+fail:
+	ceph_crypto_key_destroy(key);
+	return ret;
+}
+
 int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
 			  const struct ceph_crypto_key *src)
 {
 	memcpy(dst, src, sizeof(struct ceph_crypto_key));
-	dst->key = kmemdup(src->key, src->len, GFP_NOFS);
-	if (!dst->key)
-		return -ENOMEM;
-	return 0;
+	return set_secret(dst, src->key);
 }
 
 int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end)
@@ -37,16 +83,16 @@ int ceph_crypto_key_encode(struct ceph_c
 
 int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end)
 {
+	int ret;
+
 	ceph_decode_need(p, end, 2*sizeof(u16) + sizeof(key->created), bad);
 	key->type = ceph_decode_16(p);
 	ceph_decode_copy(p, &key->created, sizeof(key->created));
 	key->len = ceph_decode_16(p);
 	ceph_decode_need(p, end, key->len, bad);
-	key->key = kmalloc(key->len, GFP_NOFS);
-	if (!key->key)
-		return -ENOMEM;
-	ceph_decode_copy(p, key->key, key->len);
-	return 0;
+	ret = set_secret(key, *p);
+	*p += key->len;
+	return ret;
 
 bad:
 	dout("failed to decode crypto key\n");
@@ -80,9 +126,14 @@ int ceph_crypto_key_unarmor(struct ceph_
 	return 0;
 }
 
-static struct crypto_skcipher *ceph_crypto_alloc_cipher(void)
+void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
 {
-	return crypto_alloc_skcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
+	if (key) {
+		kfree(key->key);
+		key->key = NULL;
+		crypto_free_skcipher(key->tfm);
+		key->tfm = NULL;
+	}
 }
 
 static const u8 *aes_iv = (u8 *)CEPH_AES_IV;
@@ -157,372 +208,82 @@ static void teardown_sgtable(struct sg_t
 		sg_free_table(sgt);
 }
 
-static int ceph_aes_encrypt(const void *key, int key_len,
-			    void *dst, size_t *dst_len,
-			    const void *src, size_t src_len)
-{
-	struct scatterlist sg_in[2], prealloc_sg;
-	struct sg_table sg_out;
-	struct crypto_skcipher *tfm = ceph_crypto_alloc_cipher();
-	SKCIPHER_REQUEST_ON_STACK(req, tfm);
-	int ret;
-	char iv[AES_BLOCK_SIZE];
-	size_t zero_padding = (0x10 - (src_len & 0x0f));
-	char pad[16];
-
-	if (IS_ERR(tfm))
-		return PTR_ERR(tfm);
-
-	memset(pad, zero_padding, zero_padding);
-
-	*dst_len = src_len + zero_padding;
-
-	sg_init_table(sg_in, 2);
-	sg_set_buf(&sg_in[0], src, src_len);
-	sg_set_buf(&sg_in[1], pad, zero_padding);
-	ret = setup_sgtable(&sg_out, &prealloc_sg, dst, *dst_len);
-	if (ret)
-		goto out_tfm;
-
-	crypto_skcipher_setkey((void *)tfm, key, key_len);
-	memcpy(iv, aes_iv, AES_BLOCK_SIZE);
-
-	skcipher_request_set_tfm(req, tfm);
-	skcipher_request_set_callback(req, 0, NULL, NULL);
-	skcipher_request_set_crypt(req, sg_in, sg_out.sgl,
-				   src_len + zero_padding, iv);
-
-	/*
-	print_hex_dump(KERN_ERR, "enc key: ", DUMP_PREFIX_NONE, 16, 1,
-		       key, key_len, 1);
-	print_hex_dump(KERN_ERR, "enc src: ", DUMP_PREFIX_NONE, 16, 1,
-			src, src_len, 1);
-	print_hex_dump(KERN_ERR, "enc pad: ", DUMP_PREFIX_NONE, 16, 1,
-			pad, zero_padding, 1);
-	*/
-	ret = crypto_skcipher_encrypt(req);
-	skcipher_request_zero(req);
-	if (ret < 0) {
-		pr_err("ceph_aes_crypt failed %d\n", ret);
-		goto out_sg;
-	}
-	/*
-	print_hex_dump(KERN_ERR, "enc out: ", DUMP_PREFIX_NONE, 16, 1,
-		       dst, *dst_len, 1);
-	*/
-
-out_sg:
-	teardown_sgtable(&sg_out);
-out_tfm:
-	crypto_free_skcipher(tfm);
-	return ret;
-}
-
-static int ceph_aes_encrypt2(const void *key, int key_len, void *dst,
-			     size_t *dst_len,
-			     const void *src1, size_t src1_len,
-			     const void *src2, size_t src2_len)
-{
-	struct scatterlist sg_in[3], prealloc_sg;
-	struct sg_table sg_out;
-	struct crypto_skcipher *tfm = ceph_crypto_alloc_cipher();
-	SKCIPHER_REQUEST_ON_STACK(req, tfm);
-	int ret;
-	char iv[AES_BLOCK_SIZE];
-	size_t zero_padding = (0x10 - ((src1_len + src2_len) & 0x0f));
-	char pad[16];
-
-	if (IS_ERR(tfm))
-		return PTR_ERR(tfm);
-
-	memset(pad, zero_padding, zero_padding);
-
-	*dst_len = src1_len + src2_len + zero_padding;
-
-	sg_init_table(sg_in, 3);
-	sg_set_buf(&sg_in[0], src1, src1_len);
-	sg_set_buf(&sg_in[1], src2, src2_len);
-	sg_set_buf(&sg_in[2], pad, zero_padding);
-	ret = setup_sgtable(&sg_out, &prealloc_sg, dst, *dst_len);
-	if (ret)
-		goto out_tfm;
-
-	crypto_skcipher_setkey((void *)tfm, key, key_len);
-	memcpy(iv, aes_iv, AES_BLOCK_SIZE);
-
-	skcipher_request_set_tfm(req, tfm);
-	skcipher_request_set_callback(req, 0, NULL, NULL);
-	skcipher_request_set_crypt(req, sg_in, sg_out.sgl,
-				   src1_len + src2_len + zero_padding, iv);
-
-	/*
-	print_hex_dump(KERN_ERR, "enc  key: ", DUMP_PREFIX_NONE, 16, 1,
-		       key, key_len, 1);
-	print_hex_dump(KERN_ERR, "enc src1: ", DUMP_PREFIX_NONE, 16, 1,
-			src1, src1_len, 1);
-	print_hex_dump(KERN_ERR, "enc src2: ", DUMP_PREFIX_NONE, 16, 1,
-			src2, src2_len, 1);
-	print_hex_dump(KERN_ERR, "enc  pad: ", DUMP_PREFIX_NONE, 16, 1,
-			pad, zero_padding, 1);
-	*/
-	ret = crypto_skcipher_encrypt(req);
-	skcipher_request_zero(req);
-	if (ret < 0) {
-		pr_err("ceph_aes_crypt2 failed %d\n", ret);
-		goto out_sg;
-	}
-	/*
-	print_hex_dump(KERN_ERR, "enc  out: ", DUMP_PREFIX_NONE, 16, 1,
-		       dst, *dst_len, 1);
-	*/
-
-out_sg:
-	teardown_sgtable(&sg_out);
-out_tfm:
-	crypto_free_skcipher(tfm);
-	return ret;
-}
-
-static int ceph_aes_decrypt(const void *key, int key_len,
-			    void *dst, size_t *dst_len,
-			    const void *src, size_t src_len)
+static int ceph_aes_crypt(const struct ceph_crypto_key *key, bool encrypt,
+			  void *buf, int buf_len, int in_len, int *pout_len)
 {
-	struct sg_table sg_in;
-	struct scatterlist sg_out[2], prealloc_sg;
-	struct crypto_skcipher *tfm = ceph_crypto_alloc_cipher();
-	SKCIPHER_REQUEST_ON_STACK(req, tfm);
-	char pad[16];
-	char iv[AES_BLOCK_SIZE];
+	SKCIPHER_REQUEST_ON_STACK(req, key->tfm);
+	struct sg_table sgt;
+	struct scatterlist prealloc_sg;
+	char iv[AES_BLOCK_SIZE] __aligned(8);
+	int pad_byte = AES_BLOCK_SIZE - (in_len & (AES_BLOCK_SIZE - 1));
+	int crypt_len = encrypt ? in_len + pad_byte : in_len;
 	int ret;
-	int last_byte;
 
-	if (IS_ERR(tfm))
-		return PTR_ERR(tfm);
-
-	sg_init_table(sg_out, 2);
-	sg_set_buf(&sg_out[0], dst, *dst_len);
-	sg_set_buf(&sg_out[1], pad, sizeof(pad));
-	ret = setup_sgtable(&sg_in, &prealloc_sg, src, src_len);
+	WARN_ON(crypt_len > buf_len);
+	if (encrypt)
+		memset(buf + in_len, pad_byte, pad_byte);
+	ret = setup_sgtable(&sgt, &prealloc_sg, buf, crypt_len);
 	if (ret)
-		goto out_tfm;
+		return ret;
 
-	crypto_skcipher_setkey((void *)tfm, key, key_len);
 	memcpy(iv, aes_iv, AES_BLOCK_SIZE);
-
-	skcipher_request_set_tfm(req, tfm);
+	skcipher_request_set_tfm(req, key->tfm);
 	skcipher_request_set_callback(req, 0, NULL, NULL);
-	skcipher_request_set_crypt(req, sg_in.sgl, sg_out,
-				   src_len, iv);
+	skcipher_request_set_crypt(req, sgt.sgl, sgt.sgl, crypt_len, iv);
 
 	/*
-	print_hex_dump(KERN_ERR, "dec key: ", DUMP_PREFIX_NONE, 16, 1,
-		       key, key_len, 1);
-	print_hex_dump(KERN_ERR, "dec  in: ", DUMP_PREFIX_NONE, 16, 1,
-		       src, src_len, 1);
+	print_hex_dump(KERN_ERR, "key: ", DUMP_PREFIX_NONE, 16, 1,
+		       key->key, key->len, 1);
+	print_hex_dump(KERN_ERR, " in: ", DUMP_PREFIX_NONE, 16, 1,
+		       buf, crypt_len, 1);
 	*/
-	ret = crypto_skcipher_decrypt(req);
-	skcipher_request_zero(req);
-	if (ret < 0) {
-		pr_err("ceph_aes_decrypt failed %d\n", ret);
-		goto out_sg;
-	}
-
-	if (src_len <= *dst_len)
-		last_byte = ((char *)dst)[src_len - 1];
+	if (encrypt)
+		ret = crypto_skcipher_encrypt(req);
 	else
-		last_byte = pad[src_len - *dst_len - 1];
-	if (last_byte <= 16 && src_len >= last_byte) {
-		*dst_len = src_len - last_byte;
-	} else {
-		pr_err("ceph_aes_decrypt got bad padding %d on src len %d\n",
-		       last_byte, (int)src_len);
-		return -EPERM;  /* bad padding */
-	}
-	/*
-	print_hex_dump(KERN_ERR, "dec out: ", DUMP_PREFIX_NONE, 16, 1,
-		       dst, *dst_len, 1);
-	*/
-
-out_sg:
-	teardown_sgtable(&sg_in);
-out_tfm:
-	crypto_free_skcipher(tfm);
-	return ret;
-}
-
-static int ceph_aes_decrypt2(const void *key, int key_len,
-			     void *dst1, size_t *dst1_len,
-			     void *dst2, size_t *dst2_len,
-			     const void *src, size_t src_len)
-{
-	struct sg_table sg_in;
-	struct scatterlist sg_out[3], prealloc_sg;
-	struct crypto_skcipher *tfm = ceph_crypto_alloc_cipher();
-	SKCIPHER_REQUEST_ON_STACK(req, tfm);
-	char pad[16];
-	char iv[AES_BLOCK_SIZE];
-	int ret;
-	int last_byte;
-
-	if (IS_ERR(tfm))
-		return PTR_ERR(tfm);
-
-	sg_init_table(sg_out, 3);
-	sg_set_buf(&sg_out[0], dst1, *dst1_len);
-	sg_set_buf(&sg_out[1], dst2, *dst2_len);
-	sg_set_buf(&sg_out[2], pad, sizeof(pad));
-	ret = setup_sgtable(&sg_in, &prealloc_sg, src, src_len);
-	if (ret)
-		goto out_tfm;
-
-	crypto_skcipher_setkey((void *)tfm, key, key_len);
-	memcpy(iv, aes_iv, AES_BLOCK_SIZE);
-
-	skcipher_request_set_tfm(req, tfm);
-	skcipher_request_set_callback(req, 0, NULL, NULL);
-	skcipher_request_set_crypt(req, sg_in.sgl, sg_out,
-				   src_len, iv);
-
-	/*
-	print_hex_dump(KERN_ERR, "dec  key: ", DUMP_PREFIX_NONE, 16, 1,
-		       key, key_len, 1);
-	print_hex_dump(KERN_ERR, "dec   in: ", DUMP_PREFIX_NONE, 16, 1,
-		       src, src_len, 1);
-	*/
-	ret = crypto_skcipher_decrypt(req);
+		ret = crypto_skcipher_decrypt(req);
 	skcipher_request_zero(req);
-	if (ret < 0) {
-		pr_err("ceph_aes_decrypt failed %d\n", ret);
-		goto out_sg;
-	}
-
-	if (src_len <= *dst1_len)
-		last_byte = ((char *)dst1)[src_len - 1];
-	else if (src_len <= *dst1_len + *dst2_len)
-		last_byte = ((char *)dst2)[src_len - *dst1_len - 1];
-	else
-		last_byte = pad[src_len - *dst1_len - *dst2_len - 1];
-	if (last_byte <= 16 && src_len >= last_byte) {
-		src_len -= last_byte;
-	} else {
-		pr_err("ceph_aes_decrypt got bad padding %d on src len %d\n",
-		       last_byte, (int)src_len);
-		return -EPERM;  /* bad padding */
-	}
-
-	if (src_len < *dst1_len) {
-		*dst1_len = src_len;
-		*dst2_len = 0;
-	} else {
-		*dst2_len = src_len - *dst1_len;
+	if (ret) {
+		pr_err("%s %scrypt failed: %d\n", __func__,
+		       encrypt ? "en" : "de", ret);
+		goto out_sgt;
 	}
 	/*
-	print_hex_dump(KERN_ERR, "dec  out1: ", DUMP_PREFIX_NONE, 16, 1,
-		       dst1, *dst1_len, 1);
-	print_hex_dump(KERN_ERR, "dec  out2: ", DUMP_PREFIX_NONE, 16, 1,
-		       dst2, *dst2_len, 1);
+	print_hex_dump(KERN_ERR, "out: ", DUMP_PREFIX_NONE, 16, 1,
+		       buf, crypt_len, 1);
 	*/
 
-out_sg:
-	teardown_sgtable(&sg_in);
-out_tfm:
-	crypto_free_skcipher(tfm);
-	return ret;
-}
-
-
-int ceph_decrypt(struct ceph_crypto_key *secret, void *dst, size_t *dst_len,
-		 const void *src, size_t src_len)
-{
-	switch (secret->type) {
-	case CEPH_CRYPTO_NONE:
-		if (*dst_len < src_len)
-			return -ERANGE;
-		memcpy(dst, src, src_len);
-		*dst_len = src_len;
-		return 0;
-
-	case CEPH_CRYPTO_AES:
-		return ceph_aes_decrypt(secret->key, secret->len, dst,
-					dst_len, src, src_len);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-int ceph_decrypt2(struct ceph_crypto_key *secret,
-			void *dst1, size_t *dst1_len,
-			void *dst2, size_t *dst2_len,
-			const void *src, size_t src_len)
-{
-	size_t t;
-
-	switch (secret->type) {
-	case CEPH_CRYPTO_NONE:
-		if (*dst1_len + *dst2_len < src_len)
-			return -ERANGE;
-		t = min(*dst1_len, src_len);
-		memcpy(dst1, src, t);
-		*dst1_len = t;
-		src += t;
-		src_len -= t;
-		if (src_len) {
-			t = min(*dst2_len, src_len);
-			memcpy(dst2, src, t);
-			*dst2_len = t;
+	if (encrypt) {
+		*pout_len = crypt_len;
+	} else {
+		pad_byte = *(char *)(buf + in_len - 1);
+		if (pad_byte > 0 && pad_byte <= AES_BLOCK_SIZE &&
+		    in_len >= pad_byte) {
+			*pout_len = in_len - pad_byte;
+		} else {
+			pr_err("%s got bad padding %d on in_len %d\n",
+			       __func__, pad_byte, in_len);
+			ret = -EPERM;
+			goto out_sgt;
 		}
-		return 0;
-
-	case CEPH_CRYPTO_AES:
-		return ceph_aes_decrypt2(secret->key, secret->len,
-					 dst1, dst1_len, dst2, dst2_len,
-					 src, src_len);
-
-	default:
-		return -EINVAL;
 	}
-}
 
-int ceph_encrypt(struct ceph_crypto_key *secret, void *dst, size_t *dst_len,
-		 const void *src, size_t src_len)
-{
-	switch (secret->type) {
-	case CEPH_CRYPTO_NONE:
-		if (*dst_len < src_len)
-			return -ERANGE;
-		memcpy(dst, src, src_len);
-		*dst_len = src_len;
-		return 0;
-
-	case CEPH_CRYPTO_AES:
-		return ceph_aes_encrypt(secret->key, secret->len, dst,
-					dst_len, src, src_len);
-
-	default:
-		return -EINVAL;
-	}
+out_sgt:
+	teardown_sgtable(&sgt);
+	return ret;
 }
 
-int ceph_encrypt2(struct ceph_crypto_key *secret, void *dst, size_t *dst_len,
-		  const void *src1, size_t src1_len,
-		  const void *src2, size_t src2_len)
+int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
+	       void *buf, int buf_len, int in_len, int *pout_len)
 {
-	switch (secret->type) {
+	switch (key->type) {
 	case CEPH_CRYPTO_NONE:
-		if (*dst_len < src1_len + src2_len)
-			return -ERANGE;
-		memcpy(dst, src1, src1_len);
-		memcpy(dst + src1_len, src2, src2_len);
-		*dst_len = src1_len + src2_len;
+		*pout_len = in_len;
 		return 0;
-
 	case CEPH_CRYPTO_AES:
-		return ceph_aes_encrypt2(secret->key, secret->len, dst, dst_len,
-					 src1, src1_len, src2, src2_len);
-
+		return ceph_aes_crypt(key, encrypt, buf, buf_len, in_len,
+				      pout_len);
 	default:
-		return -EINVAL;
+		return -ENOTSUPP;
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ceph/crypto.h linux-libre-4.9.52-gnu/net/ceph/crypto.h
--- linux-libre-4.9-gnu/net/ceph/crypto.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ceph/crypto.h	2017-09-27 08:40:05.000000000 -0400
@@ -12,37 +12,19 @@ struct ceph_crypto_key {
 	struct ceph_timespec created;
 	int len;
 	void *key;
+	struct crypto_skcipher *tfm;
 };
 
-static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
-{
-	if (key) {
-		kfree(key->key);
-		key->key = NULL;
-	}
-}
-
 int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
 			  const struct ceph_crypto_key *src);
 int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end);
 int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
 int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
+void ceph_crypto_key_destroy(struct ceph_crypto_key *key);
 
 /* crypto.c */
-int ceph_decrypt(struct ceph_crypto_key *secret,
-		 void *dst, size_t *dst_len,
-		 const void *src, size_t src_len);
-int ceph_encrypt(struct ceph_crypto_key *secret,
-		 void *dst, size_t *dst_len,
-		 const void *src, size_t src_len);
-int ceph_decrypt2(struct ceph_crypto_key *secret,
-		  void *dst1, size_t *dst1_len,
-		  void *dst2, size_t *dst2_len,
-		  const void *src, size_t src_len);
-int ceph_encrypt2(struct ceph_crypto_key *secret,
-		  void *dst, size_t *dst_len,
-		  const void *src1, size_t src1_len,
-		  const void *src2, size_t src2_len);
+int ceph_crypt(const struct ceph_crypto_key *key, bool encrypt,
+	       void *buf, int buf_len, int in_len, int *pout_len);
 int ceph_crypto_init(void);
 void ceph_crypto_shutdown(void);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ceph/messenger.c linux-libre-4.9.52-gnu/net/ceph/messenger.c
--- linux-libre-4.9-gnu/net/ceph/messenger.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ceph/messenger.c	2017-09-27 08:40:05.000000000 -0400
@@ -7,6 +7,7 @@
 #include <linux/kthread.h>
 #include <linux/net.h>
 #include <linux/nsproxy.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/socket.h>
 #include <linux/string.h>
@@ -469,11 +470,16 @@ static int ceph_tcp_connect(struct ceph_
 {
 	struct sockaddr_storage *paddr = &con->peer_addr.in_addr;
 	struct socket *sock;
+	unsigned int noio_flag;
 	int ret;
 
 	BUG_ON(con->sock);
+
+	/* sock_create_kern() allocates with GFP_KERNEL */
+	noio_flag = memalloc_noio_save();
 	ret = sock_create_kern(read_pnet(&con->msgr->net), paddr->ss_family,
 			       SOCK_STREAM, IPPROTO_TCP, &sock);
+	memalloc_noio_restore(noio_flag);
 	if (ret)
 		return ret;
 	sock->sk->sk_allocation = GFP_NOFS;
@@ -2027,6 +2033,19 @@ static int process_connect(struct ceph_c
 
 	dout("process_connect on %p tag %d\n", con, (int)con->in_tag);
 
+	if (con->auth_reply_buf) {
+		/*
+		 * Any connection that defines ->get_authorizer()
+		 * should also define ->verify_authorizer_reply().
+		 * See get_connect_authorizer().
+		 */
+		ret = con->ops->verify_authorizer_reply(con, 0);
+		if (ret < 0) {
+			con->error_msg = "bad authorize reply";
+			return ret;
+		}
+	}
+
 	switch (con->in_reply.tag) {
 	case CEPH_MSGR_TAG_FEATURES:
 		pr_err("%s%lld %s feature set mismatch,"
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ceph/osd_client.c linux-libre-4.9.52-gnu/net/ceph/osd_client.c
--- linux-libre-4.9-gnu/net/ceph/osd_client.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ceph/osd_client.c	2017-09-27 08:40:05.000000000 -0400
@@ -672,7 +672,8 @@ void osd_req_op_extent_update(struct cep
 	BUG_ON(length > previous);
 
 	op->extent.length = length;
-	op->indata_len -= previous - length;
+	if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL)
+		op->indata_len -= previous - length;
 }
 EXPORT_SYMBOL(osd_req_op_extent_update);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ceph/osdmap.c linux-libre-4.9.52-gnu/net/ceph/osdmap.c
--- linux-libre-4.9-gnu/net/ceph/osdmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ceph/osdmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -1334,7 +1334,6 @@ static int decode_new_up_state_weight(vo
 		if ((map->osd_state[osd] & CEPH_OSD_EXISTS) &&
 		    (xorstate & CEPH_OSD_EXISTS)) {
 			pr_info("osd%d does not exist\n", osd);
-			map->osd_weight[osd] = CEPH_OSD_IN;
 			ret = set_primary_affinity(map, osd,
 						   CEPH_OSD_DEFAULT_PRIMARY_AFFINITY);
 			if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/datagram.c linux-libre-4.9.52-gnu/net/core/datagram.c
--- linux-libre-4.9-gnu/net/core/datagram.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/datagram.c	2017-09-27 08:40:05.000000000 -0400
@@ -351,7 +351,7 @@ int skb_kill_datagram(struct sock *sk, s
 	if (flags & MSG_PEEK) {
 		err = -ENOENT;
 		spin_lock_bh(&sk->sk_receive_queue.lock);
-		if (skb == skb_peek(&sk->sk_receive_queue)) {
+		if (skb->next) {
 			__skb_unlink(skb, &sk->sk_receive_queue);
 			atomic_dec(&skb->users);
 			err = 0;
@@ -378,7 +378,7 @@ int skb_copy_datagram_iter(const struct
 			   struct iov_iter *to, int len)
 {
 	int start = skb_headlen(skb);
-	int i, copy = start - offset;
+	int i, copy = start - offset, start_off = offset, n;
 	struct sk_buff *frag_iter;
 
 	trace_skb_copy_datagram_iovec(skb, len);
@@ -387,11 +387,12 @@ int skb_copy_datagram_iter(const struct
 	if (copy > 0) {
 		if (copy > len)
 			copy = len;
-		if (copy_to_iter(skb->data + offset, copy, to) != copy)
+		n = copy_to_iter(skb->data + offset, copy, to);
+		offset += n;
+		if (n != copy)
 			goto short_copy;
 		if ((len -= copy) == 0)
 			return 0;
-		offset += copy;
 	}
 
 	/* Copy paged appendix. Hmm... why does this look so complicated? */
@@ -405,13 +406,14 @@ int skb_copy_datagram_iter(const struct
 		if ((copy = end - offset) > 0) {
 			if (copy > len)
 				copy = len;
-			if (copy_page_to_iter(skb_frag_page(frag),
+			n = copy_page_to_iter(skb_frag_page(frag),
 					      frag->page_offset + offset -
-					      start, copy, to) != copy)
+					      start, copy, to);
+			offset += n;
+			if (n != copy)
 				goto short_copy;
 			if (!(len -= copy))
 				return 0;
-			offset += copy;
 		}
 		start = end;
 	}
@@ -443,6 +445,7 @@ int skb_copy_datagram_iter(const struct
 	 */
 
 fault:
+	iov_iter_revert(to, offset - start_off);
 	return -EFAULT;
 
 short_copy:
@@ -593,7 +596,7 @@ static int skb_copy_and_csum_datagram(co
 				      __wsum *csump)
 {
 	int start = skb_headlen(skb);
-	int i, copy = start - offset;
+	int i, copy = start - offset, start_off = offset;
 	struct sk_buff *frag_iter;
 	int pos = 0;
 	int n;
@@ -603,11 +606,11 @@ static int skb_copy_and_csum_datagram(co
 		if (copy > len)
 			copy = len;
 		n = csum_and_copy_to_iter(skb->data + offset, copy, csump, to);
+		offset += n;
 		if (n != copy)
 			goto fault;
 		if ((len -= copy) == 0)
 			return 0;
-		offset += copy;
 		pos = copy;
 	}
 
@@ -629,12 +632,12 @@ static int skb_copy_and_csum_datagram(co
 						  offset - start, copy,
 						  &csum2, to);
 			kunmap(page);
+			offset += n;
 			if (n != copy)
 				goto fault;
 			*csump = csum_block_add(*csump, csum2, pos);
 			if (!(len -= copy))
 				return 0;
-			offset += copy;
 			pos += copy;
 		}
 		start = end;
@@ -667,6 +670,7 @@ static int skb_copy_and_csum_datagram(co
 		return 0;
 
 fault:
+	iov_iter_revert(to, offset - start_off);
 	return -EFAULT;
 }
 
@@ -736,7 +740,7 @@ int skb_copy_and_csum_datagram_msg(struc
 
 	if (msg_data_left(msg) < chunk) {
 		if (__skb_checksum_complete(skb))
-			goto csum_error;
+			return -EINVAL;
 		if (skb_copy_datagram_msg(skb, hlen, msg, chunk))
 			goto fault;
 	} else {
@@ -744,14 +748,16 @@ int skb_copy_and_csum_datagram_msg(struc
 		if (skb_copy_and_csum_datagram(skb, hlen, &msg->msg_iter,
 					       chunk, &csum))
 			goto fault;
-		if (csum_fold(csum))
-			goto csum_error;
+
+		if (csum_fold(csum)) {
+			iov_iter_revert(&msg->msg_iter, chunk);
+			return -EINVAL;
+		}
+
 		if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
 			netdev_rx_csum_fault(skb->dev);
 	}
 	return 0;
-csum_error:
-	return -EINVAL;
 fault:
 	return -EFAULT;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/dev.c linux-libre-4.9.52-gnu/net/core/dev.c
--- linux-libre-4.9-gnu/net/core/dev.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/dev.c	2017-09-27 08:40:05.000000000 -0400
@@ -1250,8 +1250,9 @@ int dev_set_alias(struct net_device *dev
 	if (!new_ifalias)
 		return -ENOMEM;
 	dev->ifalias = new_ifalias;
+	memcpy(dev->ifalias, alias, len);
+	dev->ifalias[len] = 0;
 
-	strlcpy(dev->ifalias, alias, len+1);
 	return len;
 }
 
@@ -1696,37 +1697,59 @@ EXPORT_SYMBOL_GPL(net_dec_egress_queue);
 
 static struct static_key netstamp_needed __read_mostly;
 #ifdef HAVE_JUMP_LABEL
-/* We are not allowed to call static_key_slow_dec() from irq context
- * If net_disable_timestamp() is called from irq context, defer the
- * static_key_slow_dec() calls.
- */
 static atomic_t netstamp_needed_deferred;
+static atomic_t netstamp_wanted;
+static void netstamp_clear(struct work_struct *work)
+{
+	int deferred = atomic_xchg(&netstamp_needed_deferred, 0);
+	int wanted;
+
+	wanted = atomic_add_return(deferred, &netstamp_wanted);
+	if (wanted > 0)
+		static_key_enable(&netstamp_needed);
+	else
+		static_key_disable(&netstamp_needed);
+}
+static DECLARE_WORK(netstamp_work, netstamp_clear);
 #endif
 
 void net_enable_timestamp(void)
 {
 #ifdef HAVE_JUMP_LABEL
-	int deferred = atomic_xchg(&netstamp_needed_deferred, 0);
+	int wanted;
 
-	if (deferred) {
-		while (--deferred)
-			static_key_slow_dec(&netstamp_needed);
-		return;
+	while (1) {
+		wanted = atomic_read(&netstamp_wanted);
+		if (wanted <= 0)
+			break;
+		if (atomic_cmpxchg(&netstamp_wanted, wanted, wanted + 1) == wanted)
+			return;
 	}
-#endif
+	atomic_inc(&netstamp_needed_deferred);
+	schedule_work(&netstamp_work);
+#else
 	static_key_slow_inc(&netstamp_needed);
+#endif
 }
 EXPORT_SYMBOL(net_enable_timestamp);
 
 void net_disable_timestamp(void)
 {
 #ifdef HAVE_JUMP_LABEL
-	if (in_interrupt()) {
-		atomic_inc(&netstamp_needed_deferred);
-		return;
+	int wanted;
+
+	while (1) {
+		wanted = atomic_read(&netstamp_wanted);
+		if (wanted <= 1)
+			break;
+		if (atomic_cmpxchg(&netstamp_wanted, wanted, wanted - 1) == wanted)
+			return;
 	}
-#endif
+	atomic_dec(&netstamp_needed_deferred);
+	schedule_work(&netstamp_work);
+#else
 	static_key_slow_dec(&netstamp_needed);
+#endif
 }
 EXPORT_SYMBOL(net_disable_timestamp);
 
@@ -2679,9 +2702,10 @@ EXPORT_SYMBOL(skb_mac_gso_segment);
 static inline bool skb_needs_check(struct sk_buff *skb, bool tx_path)
 {
 	if (tx_path)
-		return skb->ip_summed != CHECKSUM_PARTIAL;
-	else
-		return skb->ip_summed == CHECKSUM_NONE;
+		return skb->ip_summed != CHECKSUM_PARTIAL &&
+		       skb->ip_summed != CHECKSUM_UNNECESSARY;
+
+	return skb->ip_summed == CHECKSUM_NONE;
 }
 
 /**
@@ -2700,11 +2724,12 @@ static inline bool skb_needs_check(struc
 struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
 				  netdev_features_t features, bool tx_path)
 {
+	struct sk_buff *segs;
+
 	if (unlikely(skb_needs_check(skb, tx_path))) {
 		int err;
 
-		skb_warn_bad_offload(skb);
-
+		/* We're going to init ->check field in TCP or UDP header */
 		err = skb_cow_head(skb, 0);
 		if (err < 0)
 			return ERR_PTR(err);
@@ -2732,7 +2757,12 @@ struct sk_buff *__skb_gso_segment(struct
 	skb_reset_mac_header(skb);
 	skb_reset_mac_len(skb);
 
-	return skb_mac_gso_segment(skb, features);
+	segs = skb_mac_gso_segment(skb, features);
+
+	if (unlikely(skb_needs_check(skb, tx_path)))
+		skb_warn_bad_offload(skb);
+
+	return segs;
 }
 EXPORT_SYMBOL(__skb_gso_segment);
 
@@ -2815,9 +2845,9 @@ static netdev_features_t harmonize_featu
 	if (skb->ip_summed != CHECKSUM_NONE &&
 	    !can_checksum_protocol(features, type)) {
 		features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
-	} else if (illegal_highdma(skb->dev, skb)) {
-		features &= ~NETIF_F_SG;
 	}
+	if (illegal_highdma(skb->dev, skb))
+		features &= ~NETIF_F_SG;
 
 	return features;
 }
@@ -4453,7 +4483,9 @@ static void skb_gro_reset_offset(struct
 	    pinfo->nr_frags &&
 	    !PageHighMem(skb_frag_page(frag0))) {
 		NAPI_GRO_CB(skb)->frag0 = skb_frag_address(frag0);
-		NAPI_GRO_CB(skb)->frag0_len = skb_frag_size(frag0);
+		NAPI_GRO_CB(skb)->frag0_len = min_t(unsigned int,
+						    skb_frag_size(frag0),
+						    skb->end - skb->tail);
 	}
 }
 
@@ -4616,6 +4648,12 @@ struct packet_offload *gro_find_complete
 }
 EXPORT_SYMBOL(gro_find_complete_by_type);
 
+static void napi_skb_free_stolen_head(struct sk_buff *skb)
+{
+	skb_dst_drop(skb);
+	kmem_cache_free(skbuff_head_cache, skb);
+}
+
 static gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
 {
 	switch (ret) {
@@ -4629,12 +4667,10 @@ static gro_result_t napi_skb_finish(gro_
 		break;
 
 	case GRO_MERGED_FREE:
-		if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD) {
-			skb_dst_drop(skb);
-			kmem_cache_free(skbuff_head_cache, skb);
-		} else {
+		if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD)
+			napi_skb_free_stolen_head(skb);
+		else
 			__kfree_skb(skb);
-		}
 		break;
 
 	case GRO_HELD:
@@ -4704,10 +4740,16 @@ static gro_result_t napi_frags_finish(st
 		break;
 
 	case GRO_DROP:
-	case GRO_MERGED_FREE:
 		napi_reuse_skb(napi, skb);
 		break;
 
+	case GRO_MERGED_FREE:
+		if (NAPI_GRO_CB(skb)->free == NAPI_GRO_FREE_STOLEN_HEAD)
+			napi_skb_free_stolen_head(skb);
+		else
+			napi_reuse_skb(napi, skb);
+		break;
+
 	case GRO_MERGED:
 		break;
 	}
@@ -5295,12 +5337,13 @@ EXPORT_SYMBOL(netdev_has_upper_dev);
  * Find out if a device is linked to an upper device and return true in case
  * it is. The caller must hold the RTNL lock.
  */
-static bool netdev_has_any_upper_dev(struct net_device *dev)
+bool netdev_has_any_upper_dev(struct net_device *dev)
 {
 	ASSERT_RTNL();
 
 	return !list_empty(&dev->all_adj_list.upper);
 }
+EXPORT_SYMBOL(netdev_has_any_upper_dev);
 
 /**
  * netdev_master_upper_dev_get - Get master upper device
@@ -7496,7 +7539,7 @@ void netdev_stats_to_stats64(struct rtnl
 {
 #if BITS_PER_LONG == 64
 	BUILD_BUG_ON(sizeof(*stats64) < sizeof(*netdev_stats));
-	memcpy(stats64, netdev_stats, sizeof(*stats64));
+	memcpy(stats64, netdev_stats, sizeof(*netdev_stats));
 	/* zero out counters that only exist in rtnl_link_stats64 */
 	memset((char *)stats64 + sizeof(*netdev_stats), 0,
 	       sizeof(*stats64) - sizeof(*netdev_stats));
@@ -7538,9 +7581,9 @@ struct rtnl_link_stats64 *dev_get_stats(
 	} else {
 		netdev_stats_to_stats64(storage, &dev->stats);
 	}
-	storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
-	storage->tx_dropped += atomic_long_read(&dev->tx_dropped);
-	storage->rx_nohandler += atomic_long_read(&dev->rx_nohandler);
+	storage->rx_dropped += (unsigned long)atomic_long_read(&dev->rx_dropped);
+	storage->tx_dropped += (unsigned long)atomic_long_read(&dev->tx_dropped);
+	storage->rx_nohandler += (unsigned long)atomic_long_read(&dev->rx_nohandler);
 	return storage;
 }
 EXPORT_SYMBOL(dev_get_stats);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/dev_ioctl.c linux-libre-4.9.52-gnu/net/core/dev_ioctl.c
--- linux-libre-4.9-gnu/net/core/dev_ioctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/dev_ioctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,6 +28,7 @@ static int dev_ifname(struct net *net, s
 
 	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
 		return -EFAULT;
+	ifr.ifr_name[IFNAMSIZ-1] = 0;
 
 	error = netdev_get_name(net, ifr.ifr_name, ifr.ifr_ifindex);
 	if (error)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/drop_monitor.c linux-libre-4.9.52-gnu/net/core/drop_monitor.c
--- linux-libre-4.9-gnu/net/core/drop_monitor.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/drop_monitor.c	2017-09-27 08:40:05.000000000 -0400
@@ -80,6 +80,7 @@ static struct sk_buff *reset_per_cpu_dat
 	struct nlattr *nla;
 	struct sk_buff *skb;
 	unsigned long flags;
+	void *msg_header;
 
 	al = sizeof(struct net_dm_alert_msg);
 	al += dm_hit_limit * sizeof(struct net_dm_drop_point);
@@ -87,21 +88,41 @@ static struct sk_buff *reset_per_cpu_dat
 
 	skb = genlmsg_new(al, GFP_KERNEL);
 
-	if (skb) {
-		genlmsg_put(skb, 0, 0, &net_drop_monitor_family,
-				0, NET_DM_CMD_ALERT);
-		nla = nla_reserve(skb, NLA_UNSPEC,
-				  sizeof(struct net_dm_alert_msg));
-		msg = nla_data(nla);
-		memset(msg, 0, al);
-	} else {
-		mod_timer(&data->send_timer, jiffies + HZ / 10);
+	if (!skb)
+		goto err;
+
+	msg_header = genlmsg_put(skb, 0, 0, &net_drop_monitor_family,
+				 0, NET_DM_CMD_ALERT);
+	if (!msg_header) {
+		nlmsg_free(skb);
+		skb = NULL;
+		goto err;
 	}
+	nla = nla_reserve(skb, NLA_UNSPEC,
+			  sizeof(struct net_dm_alert_msg));
+	if (!nla) {
+		nlmsg_free(skb);
+		skb = NULL;
+		goto err;
+	}
+	msg = nla_data(nla);
+	memset(msg, 0, al);
+	goto out;
 
+err:
+	mod_timer(&data->send_timer, jiffies + HZ / 10);
+out:
 	spin_lock_irqsave(&data->lock, flags);
 	swap(data->skb, skb);
 	spin_unlock_irqrestore(&data->lock, flags);
 
+	if (skb) {
+		struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;
+		struct genlmsghdr *gnlh = (struct genlmsghdr *)nlmsg_data(nlh);
+
+		genlmsg_end(skb, genlmsg_data(gnlh));
+	}
+
 	return skb;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/dst.c linux-libre-4.9.52-gnu/net/core/dst.c
--- linux-libre-4.9-gnu/net/core/dst.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/dst.c	2017-09-27 08:40:05.000000000 -0400
@@ -151,13 +151,13 @@ int dst_discard_out(struct net *net, str
 }
 EXPORT_SYMBOL(dst_discard_out);
 
-const u32 dst_default_metrics[RTAX_MAX + 1] = {
+const struct dst_metrics dst_default_metrics = {
 	/* This initializer is needed to force linker to place this variable
 	 * into const section. Otherwise it might end into bss section.
 	 * We really want to avoid false sharing on this variable, and catch
 	 * any writes on it.
 	 */
-	[RTAX_MAX] = 0xdeadbeef,
+	.refcnt = ATOMIC_INIT(1),
 };
 
 void dst_init(struct dst_entry *dst, struct dst_ops *ops,
@@ -169,7 +169,7 @@ void dst_init(struct dst_entry *dst, str
 	if (dev)
 		dev_hold(dev);
 	dst->ops = ops;
-	dst_init_metrics(dst, dst_default_metrics, true);
+	dst_init_metrics(dst, dst_default_metrics.metrics, true);
 	dst->expires = 0UL;
 	dst->path = dst;
 	dst->from = NULL;
@@ -315,25 +315,30 @@ EXPORT_SYMBOL(dst_release);
 
 u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old)
 {
-	u32 *p = kmalloc(sizeof(u32) * RTAX_MAX, GFP_ATOMIC);
+	struct dst_metrics *p = kmalloc(sizeof(*p), GFP_ATOMIC);
 
 	if (p) {
-		u32 *old_p = __DST_METRICS_PTR(old);
+		struct dst_metrics *old_p = (struct dst_metrics *)__DST_METRICS_PTR(old);
 		unsigned long prev, new;
 
-		memcpy(p, old_p, sizeof(u32) * RTAX_MAX);
+		atomic_set(&p->refcnt, 1);
+		memcpy(p->metrics, old_p->metrics, sizeof(p->metrics));
 
 		new = (unsigned long) p;
 		prev = cmpxchg(&dst->_metrics, old, new);
 
 		if (prev != old) {
 			kfree(p);
-			p = __DST_METRICS_PTR(prev);
+			p = (struct dst_metrics *)__DST_METRICS_PTR(prev);
 			if (prev & DST_METRICS_READ_ONLY)
 				p = NULL;
+		} else if (prev & DST_METRICS_REFCOUNTED) {
+			if (atomic_dec_and_test(&old_p->refcnt))
+				kfree(old_p);
 		}
 	}
-	return p;
+	BUILD_BUG_ON(offsetof(struct dst_metrics, metrics) != 0);
+	return (u32 *)p;
 }
 EXPORT_SYMBOL(dst_cow_metrics_generic);
 
@@ -342,7 +347,7 @@ void __dst_destroy_metrics_generic(struc
 {
 	unsigned long prev, new;
 
-	new = ((unsigned long) dst_default_metrics) | DST_METRICS_READ_ONLY;
+	new = ((unsigned long) &dst_default_metrics) | DST_METRICS_READ_ONLY;
 	prev = cmpxchg(&dst->_metrics, old, new);
 	if (prev == old)
 		kfree(__DST_METRICS_PTR(old));
@@ -465,6 +470,20 @@ static int dst_dev_event(struct notifier
 		spin_lock_bh(&dst_garbage.lock);
 		dst = dst_garbage.list;
 		dst_garbage.list = NULL;
+		/* The code in dst_ifdown places a hold on the loopback device.
+		 * If the gc entry processing is set to expire after a lengthy
+		 * interval, this hold can cause netdev_wait_allrefs() to hang
+		 * out and wait for a long time -- until the the loopback
+		 * interface is released.  If we're really unlucky, it'll emit
+		 * pr_emerg messages to console too.  Reset the interval here,
+		 * so dst cleanups occur in a more timely fashion.
+		 */
+		if (dst_garbage.timer_inc > DST_GC_INC) {
+			dst_garbage.timer_inc = DST_GC_INC;
+			dst_garbage.timer_expires = DST_GC_MIN;
+			mod_delayed_work(system_wq, &dst_gc_work,
+					 dst_garbage.timer_expires);
+		}
 		spin_unlock_bh(&dst_garbage.lock);
 
 		if (last)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/ethtool.c linux-libre-4.9.52-gnu/net/core/ethtool.c
--- linux-libre-4.9-gnu/net/core/ethtool.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/ethtool.c	2017-09-27 08:40:05.000000000 -0400
@@ -1394,9 +1394,12 @@ static int ethtool_get_regs(struct net_d
 	if (regs.len > reglen)
 		regs.len = reglen;
 
-	regbuf = vzalloc(reglen);
-	if (reglen && !regbuf)
-		return -ENOMEM;
+	regbuf = NULL;
+	if (reglen) {
+		regbuf = vzalloc(reglen);
+		if (!regbuf)
+			return -ENOMEM;
+	}
 
 	ops->get_regs(dev, &regs, regbuf);
 
@@ -1701,7 +1704,7 @@ static noinline_for_stack int ethtool_ge
 static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
 						   void __user *useraddr)
 {
-	struct ethtool_channels channels, max;
+	struct ethtool_channels channels, max = { .cmd = ETHTOOL_GCHANNELS };
 	u32 max_rx_in_use = 0;
 
 	if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/filter.c linux-libre-4.9.52-gnu/net/core/filter.c
--- linux-libre-4.9-gnu/net/core/filter.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/filter.c	2017-09-27 08:40:05.000000000 -0400
@@ -2198,6 +2198,7 @@ bool bpf_helper_changes_skb_data(void *f
 	    func == bpf_skb_change_proto ||
 	    func == bpf_skb_change_tail ||
 	    func == bpf_skb_pull_data ||
+	    func == bpf_clone_redirect ||
 	    func == bpf_l3_csum_replace ||
 	    func == bpf_l4_csum_replace)
 		return true;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/flow_dissector.c linux-libre-4.9.52-gnu/net/core/flow_dissector.c
--- linux-libre-4.9-gnu/net/core/flow_dissector.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/flow_dissector.c	2017-09-27 08:40:05.000000000 -0400
@@ -445,8 +445,9 @@ ip_proto_again:
 			if (hdr->flags & GRE_ACK)
 				offset += sizeof(((struct pptp_gre_header *)0)->ack);
 
-			ppp_hdr = skb_header_pointer(skb, nhoff + offset,
-						     sizeof(_ppp_hdr), _ppp_hdr);
+			ppp_hdr = __skb_header_pointer(skb, nhoff + offset,
+						     sizeof(_ppp_hdr),
+						     data, hlen, _ppp_hdr);
 			if (!ppp_hdr)
 				goto out_bad;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/lwtunnel.c linux-libre-4.9.52-gnu/net/core/lwtunnel.c
--- linux-libre-4.9-gnu/net/core/lwtunnel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/lwtunnel.c	2017-09-27 08:40:05.000000000 -0400
@@ -26,6 +26,7 @@
 #include <net/lwtunnel.h>
 #include <net/rtnetlink.h>
 #include <net/ip6_fib.h>
+#include <net/nexthop.h>
 
 #ifdef CONFIG_MODULES
 
@@ -65,6 +66,15 @@ EXPORT_SYMBOL(lwtunnel_state_alloc);
 static const struct lwtunnel_encap_ops __rcu *
 		lwtun_encaps[LWTUNNEL_ENCAP_MAX + 1] __read_mostly;
 
+void lwtstate_free(struct lwtunnel_state *lws)
+{
+	const struct lwtunnel_encap_ops *ops = lwtun_encaps[lws->type];
+
+	kfree(lws);
+	module_put(ops->owner);
+}
+EXPORT_SYMBOL(lwtstate_free);
+
 int lwtunnel_encap_add_ops(const struct lwtunnel_encap_ops *ops,
 			   unsigned int num)
 {
@@ -110,25 +120,77 @@ int lwtunnel_build_state(struct net_devi
 	ret = -EOPNOTSUPP;
 	rcu_read_lock();
 	ops = rcu_dereference(lwtun_encaps[encap_type]);
+	if (likely(ops && ops->build_state && try_module_get(ops->owner))) {
+		ret = ops->build_state(dev, encap, family, cfg, lws);
+		if (ret)
+			module_put(ops->owner);
+	}
+	rcu_read_unlock();
+
+	return ret;
+}
+EXPORT_SYMBOL(lwtunnel_build_state);
+
+int lwtunnel_valid_encap_type(u16 encap_type)
+{
+	const struct lwtunnel_encap_ops *ops;
+	int ret = -EINVAL;
+
+	if (encap_type == LWTUNNEL_ENCAP_NONE ||
+	    encap_type > LWTUNNEL_ENCAP_MAX)
+		return ret;
+
+	rcu_read_lock();
+	ops = rcu_dereference(lwtun_encaps[encap_type]);
+	rcu_read_unlock();
 #ifdef CONFIG_MODULES
 	if (!ops) {
 		const char *encap_type_str = lwtunnel_encap_str(encap_type);
 
 		if (encap_type_str) {
-			rcu_read_unlock();
+			__rtnl_unlock();
 			request_module("rtnl-lwt-%s", encap_type_str);
+			rtnl_lock();
+
 			rcu_read_lock();
 			ops = rcu_dereference(lwtun_encaps[encap_type]);
+			rcu_read_unlock();
 		}
 	}
 #endif
-	if (likely(ops && ops->build_state))
-		ret = ops->build_state(dev, encap, family, cfg, lws);
-	rcu_read_unlock();
+	return ops ? 0 : -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(lwtunnel_valid_encap_type);
 
-	return ret;
+int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int remaining)
+{
+	struct rtnexthop *rtnh = (struct rtnexthop *)attr;
+	struct nlattr *nla_entype;
+	struct nlattr *attrs;
+	struct nlattr *nla;
+	u16 encap_type;
+	int attrlen;
+
+	while (rtnh_ok(rtnh, remaining)) {
+		attrlen = rtnh_attrlen(rtnh);
+		if (attrlen > 0) {
+			attrs = rtnh_attrs(rtnh);
+			nla = nla_find(attrs, attrlen, RTA_ENCAP);
+			nla_entype = nla_find(attrs, attrlen, RTA_ENCAP_TYPE);
+
+			if (nla_entype) {
+				encap_type = nla_get_u16(nla_entype);
+
+				if (lwtunnel_valid_encap_type(encap_type) != 0)
+					return -EOPNOTSUPP;
+			}
+		}
+		rtnh = rtnh_next(rtnh, &remaining);
+	}
+
+	return 0;
 }
-EXPORT_SYMBOL(lwtunnel_build_state);
+EXPORT_SYMBOL(lwtunnel_valid_encap_type_attr);
 
 int lwtunnel_fill_encap(struct sk_buff *skb, struct lwtunnel_state *lwtstate)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/neighbour.c linux-libre-4.9.52-gnu/net/core/neighbour.c
--- linux-libre-4.9-gnu/net/core/neighbour.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/neighbour.c	2017-09-27 08:40:05.000000000 -0400
@@ -859,7 +859,8 @@ static void neigh_probe(struct neighbour
 	if (skb)
 		skb = skb_clone(skb, GFP_ATOMIC);
 	write_unlock(&neigh->lock);
-	neigh->ops->solicit(neigh, skb);
+	if (neigh->ops->solicit)
+		neigh->ops->solicit(neigh, skb);
 	atomic_inc(&neigh->probes);
 	kfree_skb(skb);
 }
@@ -2927,7 +2928,8 @@ static void neigh_proc_update(struct ctl
 		return;
 
 	set_bit(index, p->data_state);
-	call_netevent_notifiers(NETEVENT_DELAY_PROBE_TIME_UPDATE, p);
+	if (index == NEIGH_VAR_DELAY_PROBE_TIME)
+		call_netevent_notifiers(NETEVENT_DELAY_PROBE_TIME_UPDATE, p);
 	if (!dev) /* NULL dev means this is default value */
 		neigh_copy_dflt_parms(net, p, index);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/netclassid_cgroup.c linux-libre-4.9.52-gnu/net/core/netclassid_cgroup.c
--- linux-libre-4.9-gnu/net/core/netclassid_cgroup.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/netclassid_cgroup.c	2017-09-27 08:40:05.000000000 -0400
@@ -69,27 +69,17 @@ static int update_classid_sock(const voi
 	return 0;
 }
 
-static void update_classid(struct cgroup_subsys_state *css, void *v)
+static void cgrp_attach(struct cgroup_taskset *tset)
 {
-	struct css_task_iter it;
+	struct cgroup_subsys_state *css;
 	struct task_struct *p;
 
-	css_task_iter_start(css, &it);
-	while ((p = css_task_iter_next(&it))) {
+	cgroup_taskset_for_each(p, css, tset) {
 		task_lock(p);
-		iterate_fd(p->files, 0, update_classid_sock, v);
+		iterate_fd(p->files, 0, update_classid_sock,
+			   (void *)(unsigned long)css_cls_state(css)->classid);
 		task_unlock(p);
 	}
-	css_task_iter_end(&it);
-}
-
-static void cgrp_attach(struct cgroup_taskset *tset)
-{
-	struct cgroup_subsys_state *css;
-
-	cgroup_taskset_first(tset, &css);
-	update_classid(css,
-		       (void *)(unsigned long)css_cls_state(css)->classid);
 }
 
 static u64 read_classid(struct cgroup_subsys_state *css, struct cftype *cft)
@@ -101,12 +91,22 @@ static int write_classid(struct cgroup_s
 			 u64 value)
 {
 	struct cgroup_cls_state *cs = css_cls_state(css);
+	struct css_task_iter it;
+	struct task_struct *p;
 
 	cgroup_sk_alloc_disable();
 
 	cs->classid = (u32)value;
 
-	update_classid(css, (void *)(unsigned long)cs->classid);
+	css_task_iter_start(css, &it);
+	while ((p = css_task_iter_next(&it))) {
+		task_lock(p);
+		iterate_fd(p->files, 0, update_classid_sock,
+			   (void *)(unsigned long)cs->classid);
+		task_unlock(p);
+	}
+	css_task_iter_end(&it);
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/netpoll.c linux-libre-4.9.52-gnu/net/core/netpoll.c
--- linux-libre-4.9-gnu/net/core/netpoll.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/netpoll.c	2017-09-27 08:40:05.000000000 -0400
@@ -105,15 +105,21 @@ static void queue_process(struct work_st
 	while ((skb = skb_dequeue(&npinfo->txq))) {
 		struct net_device *dev = skb->dev;
 		struct netdev_queue *txq;
+		unsigned int q_index;
 
 		if (!netif_device_present(dev) || !netif_running(dev)) {
 			kfree_skb(skb);
 			continue;
 		}
 
-		txq = skb_get_tx_queue(dev, skb);
-
 		local_irq_save(flags);
+		/* check if skb->queue_mapping is still valid */
+		q_index = skb_get_queue_mapping(skb);
+		if (unlikely(q_index >= dev->real_num_tx_queues)) {
+			q_index = q_index % dev->real_num_tx_queues;
+			skb_set_queue_mapping(skb, q_index);
+		}
+		txq = netdev_get_tx_queue(dev, q_index);
 		HARD_TX_LOCK(dev, txq, smp_processor_id());
 		if (netif_xmit_frozen_or_stopped(txq) ||
 		    netpoll_start_xmit(skb, dev, txq) != NETDEV_TX_OK) {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/rtnetlink.c linux-libre-4.9.52-gnu/net/core/rtnetlink.c
--- linux-libre-4.9-gnu/net/core/rtnetlink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/rtnetlink.c	2017-09-27 08:40:05.000000000 -0400
@@ -937,6 +937,7 @@ static noinline size_t if_nlmsg_size(con
 	       + nla_total_size(1) /* IFLA_LINKMODE */
 	       + nla_total_size(4) /* IFLA_CARRIER_CHANGES */
 	       + nla_total_size(4) /* IFLA_LINK_NETNSID */
+	       + nla_total_size(4) /* IFLA_GROUP */
 	       + nla_total_size(ext_filter_mask
 			        & RTEXT_FILTER_VF ? 4 : 0) /* IFLA_NUM_VF */
 	       + rtnl_vfinfo_size(dev, ext_filter_mask) /* IFLA_VFINFO_LIST */
@@ -1059,7 +1060,7 @@ static int rtnl_phys_port_name_fill(stru
 		return err;
 	}
 
-	if (nla_put(skb, IFLA_PHYS_PORT_NAME, strlen(name), name))
+	if (nla_put_string(skb, IFLA_PHYS_PORT_NAME, name))
 		return -EMSGSIZE;
 
 	return 0;
@@ -1130,6 +1131,8 @@ static noinline_for_stack int rtnl_fill_
 	struct ifla_vf_mac vf_mac;
 	struct ifla_vf_info ivi;
 
+	memset(&ivi, 0, sizeof(ivi));
+
 	/* Not all SR-IOV capable drivers support the
 	 * spoofcheck and "RSS query enable" query.  Preset to
 	 * -1 so the user space tool can detect that the driver
@@ -1138,7 +1141,6 @@ static noinline_for_stack int rtnl_fill_
 	ivi.spoofchk = -1;
 	ivi.rss_query_en = -1;
 	ivi.trusted = -1;
-	memset(ivi.mac, 0, sizeof(ivi.mac));
 	/* The default value for VF link state is "auto"
 	 * IFLA_VF_LINK_STATE_AUTO which equals zero
 	 */
@@ -1464,6 +1466,7 @@ static const struct nla_policy ifla_poli
 	[IFLA_LINK_NETNSID]	= { .type = NLA_S32 },
 	[IFLA_PROTO_DOWN]	= { .type = NLA_U8 },
 	[IFLA_XDP]		= { .type = NLA_NESTED },
+	[IFLA_GROUP]		= { .type = NLA_U32 },
 };
 
 static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
@@ -1617,13 +1620,13 @@ static int rtnl_dump_ifinfo(struct sk_bu
 					       cb->nlh->nlmsg_seq, 0,
 					       flags,
 					       ext_filter_mask);
-			/* If we ran out of room on the first message,
-			 * we're in trouble
-			 */
-			WARN_ON((err == -EMSGSIZE) && (skb->len == 0));
 
-			if (err < 0)
-				goto out;
+			if (err < 0) {
+				if (likely(skb->len))
+					goto out;
+
+				goto out_err;
+			}
 
 			nl_dump_check_consistent(cb, nlmsg_hdr(skb));
 cont:
@@ -1631,10 +1634,12 @@ cont:
 		}
 	}
 out:
+	err = skb->len;
+out_err:
 	cb->args[1] = idx;
 	cb->args[0] = h;
 
-	return skb->len;
+	return err;
 }
 
 int rtnl_nla_parse_ifla(struct nlattr **tb, const struct nlattr *head, int len)
@@ -1960,7 +1965,8 @@ static int do_setlink(const struct sk_bu
 		struct sockaddr *sa;
 		int len;
 
-		len = sizeof(sa_family_t) + dev->addr_len;
+		len = sizeof(sa_family_t) + max_t(size_t, dev->addr_len,
+						  sizeof(*sa));
 		sa = kmalloc(len, GFP_KERNEL);
 		if (!sa) {
 			err = -ENOMEM;
@@ -3413,8 +3419,12 @@ static int rtnl_bridge_getlink(struct sk
 				err = br_dev->netdev_ops->ndo_bridge_getlink(
 						skb, portid, seq, dev,
 						filter_mask, NLM_F_MULTI);
-				if (err < 0 && err != -EOPNOTSUPP)
-					break;
+				if (err < 0 && err != -EOPNOTSUPP) {
+					if (likely(skb->len))
+						break;
+
+					goto out_err;
+				}
 			}
 			idx++;
 		}
@@ -3425,16 +3435,22 @@ static int rtnl_bridge_getlink(struct sk
 							      seq, dev,
 							      filter_mask,
 							      NLM_F_MULTI);
-				if (err < 0 && err != -EOPNOTSUPP)
-					break;
+				if (err < 0 && err != -EOPNOTSUPP) {
+					if (likely(skb->len))
+						break;
+
+					goto out_err;
+				}
 			}
 			idx++;
 		}
 	}
+	err = skb->len;
+out_err:
 	rcu_read_unlock();
 	cb->args[0] = idx;
 
-	return skb->len;
+	return err;
 }
 
 static inline size_t bridge_nlmsg_size(void)
@@ -3886,6 +3902,9 @@ static int rtnl_stats_get(struct sk_buff
 	u32 filter_mask;
 	int err;
 
+	if (nlmsg_len(nlh) < sizeof(*ifsm))
+		return -EINVAL;
+
 	ifsm = nlmsg_data(nlh);
 	if (ifsm->ifindex > 0)
 		dev = __dev_get_by_index(net, ifsm->ifindex);
@@ -3935,6 +3954,9 @@ static int rtnl_stats_dump(struct sk_buf
 
 	cb->seq = net->dev_base_seq;
 
+	if (nlmsg_len(cb->nlh) < sizeof(*ifsm))
+		return -EINVAL;
+
 	ifsm = nlmsg_data(cb->nlh);
 	filter_mask = ifsm->filter_mask;
 	if (!filter_mask)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/skbuff.c linux-libre-4.9.52-gnu/net/core/skbuff.c
--- linux-libre-4.9-gnu/net/core/skbuff.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/skbuff.c	2017-09-27 08:40:05.000000000 -0400
@@ -3076,22 +3076,32 @@ struct sk_buff *skb_segment(struct sk_bu
 	if (sg && csum && (mss != GSO_BY_FRAGS))  {
 		if (!(features & NETIF_F_GSO_PARTIAL)) {
 			struct sk_buff *iter;
+			unsigned int frag_len;
 
 			if (!list_skb ||
 			    !net_gso_ok(features, skb_shinfo(head_skb)->gso_type))
 				goto normal;
 
-			/* Split the buffer at the frag_list pointer.
-			 * This is based on the assumption that all
-			 * buffers in the chain excluding the last
-			 * containing the same amount of data.
+			/* If we get here then all the required
+			 * GSO features except frag_list are supported.
+			 * Try to split the SKB to multiple GSO SKBs
+			 * with no frag_list.
+			 * Currently we can do that only when the buffers don't
+			 * have a linear part and all the buffers except
+			 * the last are of the same length.
 			 */
+			frag_len = list_skb->len;
 			skb_walk_frags(head_skb, iter) {
+				if (frag_len != iter->len && iter->next)
+					goto normal;
 				if (skb_headlen(iter))
 					goto normal;
 
 				len -= iter->len;
 			}
+
+			if (len != frag_len)
+				goto normal;
 		}
 
 		/* GSO partial only requires that we trim off any excess that
@@ -3779,6 +3789,7 @@ static void __skb_complete_tx_timestamp(
 	serr->ee.ee_errno = ENOMSG;
 	serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
 	serr->ee.ee_info = tstype;
+	serr->header.h4.iif = skb->dev ? skb->dev->ifindex : 0;
 	if (sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID) {
 		serr->ee.ee_data = skb_shinfo(skb)->tskey;
 		if (sk->sk_protocol == IPPROTO_TCP &&
@@ -3814,13 +3825,14 @@ void skb_complete_tx_timestamp(struct sk
 	if (!skb_may_tx_timestamp(sk, false))
 		return;
 
-	/* take a reference to prevent skb_orphan() from freeing the socket */
-	sock_hold(sk);
-
-	*skb_hwtstamps(skb) = *hwtstamps;
-	__skb_complete_tx_timestamp(skb, sk, SCM_TSTAMP_SND);
-
-	sock_put(sk);
+	/* Take a reference to prevent skb_orphan() from freeing the socket,
+	 * but only if the socket refcount is not zero.
+	 */
+	if (likely(atomic_inc_not_zero(&sk->sk_refcnt))) {
+		*skb_hwtstamps(skb) = *hwtstamps;
+		__skb_complete_tx_timestamp(skb, sk, SCM_TSTAMP_SND);
+		sock_put(sk);
+	}
 }
 EXPORT_SYMBOL_GPL(skb_complete_tx_timestamp);
 
@@ -3871,7 +3883,7 @@ void skb_complete_wifi_ack(struct sk_buf
 {
 	struct sock *sk = skb->sk;
 	struct sock_exterr_skb *serr;
-	int err;
+	int err = 1;
 
 	skb->wifi_acked_valid = 1;
 	skb->wifi_acked = acked;
@@ -3881,14 +3893,15 @@ void skb_complete_wifi_ack(struct sk_buf
 	serr->ee.ee_errno = ENOMSG;
 	serr->ee.ee_origin = SO_EE_ORIGIN_TXSTATUS;
 
-	/* take a reference to prevent skb_orphan() from freeing the socket */
-	sock_hold(sk);
-
-	err = sock_queue_err_skb(sk, skb);
+	/* Take a reference to prevent skb_orphan() from freeing the socket,
+	 * but only if the socket refcount is not zero.
+	 */
+	if (likely(atomic_inc_not_zero(&sk->sk_refcnt))) {
+		err = sock_queue_err_skb(sk, skb);
+		sock_put(sk);
+	}
 	if (err)
 		kfree_skb(skb);
-
-	sock_put(sk);
 }
 EXPORT_SYMBOL_GPL(skb_complete_wifi_ack);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/core/sock.c linux-libre-4.9.52-gnu/net/core/sock.c
--- linux-libre-4.9-gnu/net/core/sock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/core/sock.c	2017-09-27 08:40:05.000000000 -0400
@@ -138,10 +138,7 @@
 
 #include <trace/events/sock.h>
 
-#ifdef CONFIG_INET
 #include <net/tcp.h>
-#endif
-
 #include <net/busy_poll.h>
 
 static DEFINE_MUTEX(proto_list_mutex);
@@ -222,7 +219,7 @@ static const char *const af_family_key_s
   "sk_lock-AF_RXRPC" , "sk_lock-AF_ISDN"     , "sk_lock-AF_PHONET"   ,
   "sk_lock-AF_IEEE802154", "sk_lock-AF_CAIF" , "sk_lock-AF_ALG"      ,
   "sk_lock-AF_NFC"   , "sk_lock-AF_VSOCK"    , "sk_lock-AF_KCM"      ,
-  "sk_lock-AF_MAX"
+  "sk_lock-AF_QIPCRTR", "sk_lock-AF_MAX"
 };
 static const char *const af_family_slock_key_strings[AF_MAX+1] = {
   "slock-AF_UNSPEC", "slock-AF_UNIX"     , "slock-AF_INET"     ,
@@ -239,7 +236,7 @@ static const char *const af_family_slock
   "slock-AF_RXRPC" , "slock-AF_ISDN"     , "slock-AF_PHONET"   ,
   "slock-AF_IEEE802154", "slock-AF_CAIF" , "slock-AF_ALG"      ,
   "slock-AF_NFC"   , "slock-AF_VSOCK"    ,"slock-AF_KCM"       ,
-  "slock-AF_MAX"
+  "slock-AF_QIPCRTR", "slock-AF_MAX"
 };
 static const char *const af_family_clock_key_strings[AF_MAX+1] = {
   "clock-AF_UNSPEC", "clock-AF_UNIX"     , "clock-AF_INET"     ,
@@ -256,7 +253,7 @@ static const char *const af_family_clock
   "clock-AF_RXRPC" , "clock-AF_ISDN"     , "clock-AF_PHONET"   ,
   "clock-AF_IEEE802154", "clock-AF_CAIF" , "clock-AF_ALG"      ,
   "clock-AF_NFC"   , "clock-AF_VSOCK"    , "clock-AF_KCM"      ,
-  "clock-AF_MAX"
+  "clock-AF_QIPCRTR", "clock-AF_MAX"
 };
 
 /*
@@ -1437,6 +1434,11 @@ static void __sk_destruct(struct rcu_hea
 		pr_debug("%s: optmem leakage (%d bytes) detected\n",
 			 __func__, atomic_read(&sk->sk_omem_alloc));
 
+	if (sk->sk_frag.page) {
+		put_page(sk->sk_frag.page);
+		sk->sk_frag.page = NULL;
+	}
+
 	if (sk->sk_peer_cred)
 		put_cred(sk->sk_peer_cred);
 	put_pid(sk->sk_peer_pid);
@@ -1533,6 +1535,12 @@ struct sock *sk_clone_lock(const struct
 			is_charged = sk_filter_charge(newsk, filter);
 
 		if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) {
+			/* We need to make sure that we don't uncharge the new
+			 * socket if we couldn't charge it in the first place
+			 * as otherwise we uncharge the parent's filter.
+			 */
+			if (!is_charged)
+				RCU_INIT_POINTER(newsk->sk_filter, NULL);
 			/* It is still raw copy of parent, so invalidate
 			 * destructor and make plain sk_free() */
 			newsk->sk_destruct = NULL;
@@ -1676,28 +1684,24 @@ EXPORT_SYMBOL(skb_set_owner_w);
  * delay queue. We want to allow the owner socket to send more
  * packets, as if they were already TX completed by a typical driver.
  * But we also want to keep skb->sk set because some packet schedulers
- * rely on it (sch_fq for example). So we set skb->truesize to a small
- * amount (1) and decrease sk_wmem_alloc accordingly.
+ * rely on it (sch_fq for example).
  */
 void skb_orphan_partial(struct sk_buff *skb)
 {
-	/* If this skb is a TCP pure ACK or already went here,
-	 * we have nothing to do. 2 is already a very small truesize.
-	 */
-	if (skb->truesize <= 2)
+	if (skb_is_tcp_pure_ack(skb))
 		return;
 
-	/* TCP stack sets skb->ooo_okay based on sk_wmem_alloc,
-	 * so we do not completely orphan skb, but transfert all
-	 * accounted bytes but one, to avoid unexpected reorders.
-	 */
 	if (skb->destructor == sock_wfree
 #ifdef CONFIG_INET
 	    || skb->destructor == tcp_wfree
 #endif
 		) {
-		atomic_sub(skb->truesize - 1, &skb->sk->sk_wmem_alloc);
-		skb->truesize = 1;
+		struct sock *sk = skb->sk;
+
+		if (atomic_inc_not_zero(&sk->sk_refcnt)) {
+			atomic_sub(skb->truesize, &sk->sk_wmem_alloc);
+			skb->destructor = sock_efree;
+		}
 	} else {
 		skb_orphan(skb);
 	}
@@ -2738,11 +2742,6 @@ void sk_common_release(struct sock *sk)
 
 	sk_refcnt_debug_release(sk);
 
-	if (sk->sk_frag.page) {
-		put_page(sk->sk_frag.page);
-		sk->sk_frag.page = NULL;
-	}
-
 	sock_put(sk);
 }
 EXPORT_SYMBOL(sk_common_release);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dccp/ccids/ccid2.c linux-libre-4.9.52-gnu/net/dccp/ccids/ccid2.c
--- linux-libre-4.9-gnu/net/dccp/ccids/ccid2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dccp/ccids/ccid2.c	2017-09-27 08:40:05.000000000 -0400
@@ -749,6 +749,7 @@ static void ccid2_hc_tx_exit(struct sock
 	for (i = 0; i < hc->tx_seqbufc; i++)
 		kfree(hc->tx_seqbuf[i]);
 	hc->tx_seqbufc = 0;
+	dccp_ackvec_parsed_cleanup(&hc->tx_av_chunks);
 }
 
 static void ccid2_hc_rx_packet_recv(struct sock *sk, struct sk_buff *skb)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dccp/feat.c linux-libre-4.9.52-gnu/net/dccp/feat.c
--- linux-libre-4.9-gnu/net/dccp/feat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dccp/feat.c	2017-09-27 08:40:05.000000000 -0400
@@ -1471,9 +1471,12 @@ int dccp_feat_init(struct sock *sk)
 	 * singleton values (which always leads to failure).
 	 * These settings can still (later) be overridden via sockopts.
 	 */
-	if (ccid_get_builtin_ccids(&tx.val, &tx.len) ||
-	    ccid_get_builtin_ccids(&rx.val, &rx.len))
+	if (ccid_get_builtin_ccids(&tx.val, &tx.len))
 		return -ENOBUFS;
+	if (ccid_get_builtin_ccids(&rx.val, &rx.len)) {
+		kfree(tx.val);
+		return -ENOBUFS;
+	}
 
 	if (!dccp_feat_prefer(sysctl_dccp_tx_ccid, tx.val, tx.len) ||
 	    !dccp_feat_prefer(sysctl_dccp_rx_ccid, rx.val, rx.len))
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dccp/input.c linux-libre-4.9.52-gnu/net/dccp/input.c
--- linux-libre-4.9-gnu/net/dccp/input.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dccp/input.c	2017-09-27 08:40:05.000000000 -0400
@@ -577,6 +577,7 @@ int dccp_rcv_state_process(struct sock *
 	struct dccp_sock *dp = dccp_sk(sk);
 	struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
 	const int old_state = sk->sk_state;
+	bool acceptable;
 	int queued = 0;
 
 	/*
@@ -603,10 +604,16 @@ int dccp_rcv_state_process(struct sock *
 	 */
 	if (sk->sk_state == DCCP_LISTEN) {
 		if (dh->dccph_type == DCCP_PKT_REQUEST) {
-			if (inet_csk(sk)->icsk_af_ops->conn_request(sk,
-								    skb) < 0)
+			/* It is possible that we process SYN packets from backlog,
+			 * so we need to make sure to disable BH right there.
+			 */
+			local_bh_disable();
+			acceptable = inet_csk(sk)->icsk_af_ops->conn_request(sk, skb) >= 0;
+			local_bh_enable();
+			if (!acceptable)
 				return 1;
-			goto discard;
+			consume_skb(skb);
+			return 0;
 		}
 		if (dh->dccph_type == DCCP_PKT_RESET)
 			goto discard;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dccp/ipv4.c linux-libre-4.9.52-gnu/net/dccp/ipv4.c
--- linux-libre-4.9-gnu/net/dccp/ipv4.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dccp/ipv4.c	2017-09-27 08:40:05.000000000 -0400
@@ -289,7 +289,8 @@ static void dccp_v4_err(struct sk_buff *
 
 	switch (type) {
 	case ICMP_REDIRECT:
-		dccp_do_redirect(skb, sk);
+		if (!sock_owned_by_user(sk))
+			dccp_do_redirect(skb, sk);
 		goto out;
 	case ICMP_SOURCE_QUENCH:
 		/* Just silently ignore these. */
@@ -636,6 +637,7 @@ int dccp_v4_conn_request(struct sock *sk
 		goto drop_and_free;
 
 	inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT);
+	reqsk_put(req);
 	return 0;
 
 drop_and_free:
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dccp/ipv6.c linux-libre-4.9.52-gnu/net/dccp/ipv6.c
--- linux-libre-4.9-gnu/net/dccp/ipv6.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dccp/ipv6.c	2017-09-27 08:40:05.000000000 -0400
@@ -122,10 +122,12 @@ static void dccp_v6_err(struct sk_buff *
 	np = inet6_sk(sk);
 
 	if (type == NDISC_REDIRECT) {
-		struct dst_entry *dst = __sk_dst_check(sk, np->dst_cookie);
+		if (!sock_owned_by_user(sk)) {
+			struct dst_entry *dst = __sk_dst_check(sk, np->dst_cookie);
 
-		if (dst)
-			dst->ops->redirect(dst, sk, skb);
+			if (dst)
+				dst->ops->redirect(dst, sk, skb);
+		}
 		goto out;
 	}
 
@@ -227,7 +229,7 @@ static int dccp_v6_send_response(const s
 		opt = ireq->ipv6_opt;
 		if (!opt)
 			opt = rcu_dereference(np->opt);
-		err = ip6_xmit(sk, skb, &fl6, opt, np->tclass);
+		err = ip6_xmit(sk, skb, &fl6, sk->sk_mark, opt, np->tclass);
 		rcu_read_unlock();
 		err = net_xmit_eval(err);
 	}
@@ -281,7 +283,7 @@ static void dccp_v6_ctl_send_reset(const
 	dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL);
 	if (!IS_ERR(dst)) {
 		skb_dst_set(skb, dst);
-		ip6_xmit(ctl_sk, skb, &fl6, NULL, 0);
+		ip6_xmit(ctl_sk, skb, &fl6, 0, NULL, 0);
 		DCCP_INC_STATS(DCCP_MIB_OUTSEGS);
 		DCCP_INC_STATS(DCCP_MIB_OUTRSTS);
 		return;
@@ -378,6 +380,7 @@ static int dccp_v6_conn_request(struct s
 		goto drop_and_free;
 
 	inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT);
+	reqsk_put(req);
 	return 0;
 
 drop_and_free:
@@ -424,6 +427,9 @@ static struct sock *dccp_v6_request_recv
 		newsk->sk_backlog_rcv = dccp_v4_do_rcv;
 		newnp->pktoptions  = NULL;
 		newnp->opt	   = NULL;
+		newnp->ipv6_mc_list = NULL;
+		newnp->ipv6_ac_list = NULL;
+		newnp->ipv6_fl_list = NULL;
 		newnp->mcast_oif   = inet6_iif(skb);
 		newnp->mcast_hops  = ipv6_hdr(skb)->hop_limit;
 
@@ -488,6 +494,9 @@ static struct sock *dccp_v6_request_recv
 	/* Clone RX bits */
 	newnp->rxopt.all = np->rxopt.all;
 
+	newnp->ipv6_mc_list = NULL;
+	newnp->ipv6_ac_list = NULL;
+	newnp->ipv6_fl_list = NULL;
 	newnp->pktoptions = NULL;
 	newnp->opt	  = NULL;
 	newnp->mcast_oif  = inet6_iif(skb);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dccp/minisocks.c linux-libre-4.9.52-gnu/net/dccp/minisocks.c
--- linux-libre-4.9-gnu/net/dccp/minisocks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dccp/minisocks.c	2017-09-27 08:40:05.000000000 -0400
@@ -122,6 +122,7 @@ struct sock *dccp_create_openreq_child(c
 			/* It is still raw copy of parent, so invalidate
 			 * destructor and make plain sk_free() */
 			newsk->sk_destruct = NULL;
+			bh_unlock_sock(newsk);
 			sk_free(newsk);
 			return NULL;
 		}
@@ -145,6 +146,13 @@ struct sock *dccp_check_req(struct sock
 	struct dccp_request_sock *dreq = dccp_rsk(req);
 	bool own_req;
 
+	/* TCP/DCCP listeners became lockless.
+	 * DCCP stores complex state in its request_sock, so we need
+	 * a protection for them, now this code runs without being protected
+	 * by the parent (listener) lock.
+	 */
+	spin_lock_bh(&dreq->dreq_lock);
+
 	/* Check for retransmitted REQUEST */
 	if (dccp_hdr(skb)->dccph_type == DCCP_PKT_REQUEST) {
 
@@ -159,7 +167,7 @@ struct sock *dccp_check_req(struct sock
 			inet_rtx_syn_ack(sk, req);
 		}
 		/* Network Duplicate, discard packet */
-		return NULL;
+		goto out;
 	}
 
 	DCCP_SKB_CB(skb)->dccpd_reset_code = DCCP_RESET_CODE_PACKET_ERROR;
@@ -185,20 +193,20 @@ struct sock *dccp_check_req(struct sock
 
 	child = inet_csk(sk)->icsk_af_ops->syn_recv_sock(sk, skb, req, NULL,
 							 req, &own_req);
-	if (!child)
-		goto listen_overflow;
-
-	return inet_csk_complete_hashdance(sk, child, req, own_req);
+	if (child) {
+		child = inet_csk_complete_hashdance(sk, child, req, own_req);
+		goto out;
+	}
 
-listen_overflow:
-	dccp_pr_debug("listen_overflow!\n");
 	DCCP_SKB_CB(skb)->dccpd_reset_code = DCCP_RESET_CODE_TOO_BUSY;
 drop:
 	if (dccp_hdr(skb)->dccph_type != DCCP_PKT_RESET)
 		req->rsk_ops->send_reset(sk, skb);
 
 	inet_csk_reqsk_queue_drop(sk, req);
-	return NULL;
+out:
+	spin_unlock_bh(&dreq->dreq_lock);
+	return child;
 }
 
 EXPORT_SYMBOL_GPL(dccp_check_req);
@@ -249,6 +257,7 @@ int dccp_reqsk_init(struct request_sock
 {
 	struct dccp_request_sock *dreq = dccp_rsk(req);
 
+	spin_lock_init(&dreq->dreq_lock);
 	inet_rsk(req)->ir_rmt_port = dccp_hdr(skb)->dccph_sport;
 	inet_rsk(req)->ir_num	   = ntohs(dccp_hdr(skb)->dccph_dport);
 	inet_rsk(req)->acked	   = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dccp/proto.c linux-libre-4.9.52-gnu/net/dccp/proto.c
--- linux-libre-4.9-gnu/net/dccp/proto.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dccp/proto.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,7 @@
 #include <net/checksum.h>
 
 #include <net/inet_sock.h>
+#include <net/inet_common.h>
 #include <net/sock.h>
 #include <net/xfrm.h>
 
@@ -170,6 +171,15 @@ const char *dccp_packet_name(const int t
 
 EXPORT_SYMBOL_GPL(dccp_packet_name);
 
+static void dccp_sk_destruct(struct sock *sk)
+{
+	struct dccp_sock *dp = dccp_sk(sk);
+
+	ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
+	dp->dccps_hc_tx_ccid = NULL;
+	inet_sock_destruct(sk);
+}
+
 int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
@@ -179,6 +189,7 @@ int dccp_init_sock(struct sock *sk, cons
 	icsk->icsk_syn_retries	= sysctl_dccp_request_retries;
 	sk->sk_state		= DCCP_CLOSED;
 	sk->sk_write_space	= dccp_write_space;
+	sk->sk_destruct		= dccp_sk_destruct;
 	icsk->icsk_sync_mss	= dccp_sync_mss;
 	dp->dccps_mss_cache	= 536;
 	dp->dccps_rate_last	= jiffies;
@@ -201,10 +212,7 @@ void dccp_destroy_sock(struct sock *sk)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
 
-	/*
-	 * DCCP doesn't use sk_write_queue, just sk_send_head
-	 * for retransmissions
-	 */
+	__skb_queue_purge(&sk->sk_write_queue);
 	if (sk->sk_send_head != NULL) {
 		kfree_skb(sk->sk_send_head);
 		sk->sk_send_head = NULL;
@@ -222,8 +230,7 @@ void dccp_destroy_sock(struct sock *sk)
 		dp->dccps_hc_rx_ackvec = NULL;
 	}
 	ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
-	ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
-	dp->dccps_hc_rx_ccid = dp->dccps_hc_tx_ccid = NULL;
+	dp->dccps_hc_rx_ccid = NULL;
 
 	/* clean up feature negotiation state */
 	dccp_feat_list_purge(&dp->dccps_featneg);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/decnet/dn_route.c linux-libre-4.9.52-gnu/net/decnet/dn_route.c
--- linux-libre-4.9-gnu/net/decnet/dn_route.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/decnet/dn_route.c	2017-09-27 08:40:05.000000000 -0400
@@ -188,12 +188,6 @@ static inline void dnrt_free(struct dn_r
 	call_rcu_bh(&rt->dst.rcu_head, dst_rcu_free);
 }
 
-static inline void dnrt_drop(struct dn_route *rt)
-{
-	dst_release(&rt->dst);
-	call_rcu_bh(&rt->dst.rcu_head, dst_rcu_free);
-}
-
 static void dn_dst_check_expire(unsigned long dummy)
 {
 	int i;
@@ -248,7 +242,7 @@ static int dn_dst_gc(struct dst_ops *ops
 			}
 			*rtp = rt->dst.dn_next;
 			rt->dst.dn_next = NULL;
-			dnrt_drop(rt);
+			dnrt_free(rt);
 			break;
 		}
 		spin_unlock_bh(&dn_rt_hash_table[i].lock);
@@ -350,7 +344,7 @@ static int dn_insert_route(struct dn_rou
 			dst_use(&rth->dst, now);
 			spin_unlock_bh(&dn_rt_hash_table[hash].lock);
 
-			dnrt_drop(rt);
+			dst_free(&rt->dst);
 			*rp = rth;
 			return 0;
 		}
@@ -380,7 +374,7 @@ static void dn_run_flush(unsigned long d
 		for(; rt; rt = next) {
 			next = rcu_dereference_raw(rt->dst.dn_next);
 			RCU_INIT_POINTER(rt->dst.dn_next, NULL);
-			dst_free((struct dst_entry *)rt);
+			dnrt_free(rt);
 		}
 
 nothing_to_declare:
@@ -1187,7 +1181,7 @@ make_route:
 	if (dev_out->flags & IFF_LOOPBACK)
 		flags |= RTCF_LOCAL;
 
-	rt = dst_alloc(&dn_dst_ops, dev_out, 1, DST_OBSOLETE_NONE, DST_HOST);
+	rt = dst_alloc(&dn_dst_ops, dev_out, 0, DST_OBSOLETE_NONE, DST_HOST);
 	if (rt == NULL)
 		goto e_nobufs;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/decnet/netfilter/dn_rtmsg.c linux-libre-4.9.52-gnu/net/decnet/netfilter/dn_rtmsg.c
--- linux-libre-4.9-gnu/net/decnet/netfilter/dn_rtmsg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/decnet/netfilter/dn_rtmsg.c	2017-09-27 08:40:05.000000000 -0400
@@ -102,7 +102,9 @@ static inline void dnrmg_receive_user_sk
 {
 	struct nlmsghdr *nlh = nlmsg_hdr(skb);
 
-	if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
+	if (skb->len < sizeof(*nlh) ||
+	    nlh->nlmsg_len < sizeof(*nlh) ||
+	    skb->len < nlh->nlmsg_len)
 		return;
 
 	if (!netlink_capable(skb, CAP_NET_ADMIN))
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dsa/dsa2.c linux-libre-4.9.52-gnu/net/dsa/dsa2.c
--- linux-libre-4.9-gnu/net/dsa/dsa2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dsa/dsa2.c	2017-09-27 08:40:05.000000000 -0400
@@ -273,6 +273,7 @@ static int dsa_user_port_apply(struct de
 	if (err) {
 		dev_warn(ds->dev, "Failed to create slave %d: %d\n",
 			 index, err);
+		ds->ports[index].netdev = NULL;
 		return err;
 	}
 
@@ -394,9 +395,11 @@ static int dsa_dst_apply(struct dsa_swit
 			return err;
 	}
 
-	err = dsa_cpu_port_ethtool_setup(dst->ds[0]);
-	if (err)
-		return err;
+	if (dst->ds[0]) {
+		err = dsa_cpu_port_ethtool_setup(dst->ds[0]);
+		if (err)
+			return err;
+	}
 
 	/* If we use a tagging format that doesn't have an ethertype
 	 * field, make sure that all packets from this point on get
@@ -433,7 +436,8 @@ static void dsa_dst_unapply(struct dsa_s
 		dsa_ds_unapply(dst, ds);
 	}
 
-	dsa_cpu_port_ethtool_restore(dst->ds[0]);
+	if (dst->ds[0])
+		dsa_cpu_port_ethtool_restore(dst->ds[0]);
 
 	pr_info("DSA: tree %d unapplied\n", dst->tree);
 	dst->applied = false;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/dsa/slave.c linux-libre-4.9.52-gnu/net/dsa/slave.c
--- linux-libre-4.9-gnu/net/dsa/slave.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/dsa/slave.c	2017-09-27 08:40:05.000000000 -0400
@@ -1103,10 +1103,8 @@ static int dsa_slave_phy_connect(struct
 	/* Use already configured phy mode */
 	if (p->phy_interface == PHY_INTERFACE_MODE_NA)
 		p->phy_interface = p->phy->interface;
-	phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
-			   p->phy_interface);
-
-	return 0;
+	return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
+				  p->phy_interface);
 }
 
 static int dsa_slave_phy_setup(struct dsa_slave_priv *p,
@@ -1201,6 +1199,8 @@ int dsa_slave_suspend(struct net_device
 {
 	struct dsa_slave_priv *p = netdev_priv(slave_dev);
 
+	netif_device_detach(slave_dev);
+
 	if (p->phy) {
 		phy_stop(p->phy);
 		p->old_pause = -1;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ethernet/eth.c linux-libre-4.9.52-gnu/net/ethernet/eth.c
--- linux-libre-4.9-gnu/net/ethernet/eth.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ethernet/eth.c	2017-09-27 08:40:05.000000000 -0400
@@ -356,6 +356,7 @@ void ether_setup(struct net_device *dev)
 	dev->header_ops		= &eth_header_ops;
 	dev->type		= ARPHRD_ETHER;
 	dev->hard_header_len 	= ETH_HLEN;
+	dev->min_header_len	= ETH_HLEN;
 	dev->mtu		= ETH_DATA_LEN;
 	dev->addr_len		= ETH_ALEN;
 	dev->tx_queue_len	= 1000;	/* Ethernet wants good queues */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ieee802154/6lowpan/reassembly.c linux-libre-4.9.52-gnu/net/ieee802154/6lowpan/reassembly.c
--- linux-libre-4.9-gnu/net/ieee802154/6lowpan/reassembly.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ieee802154/6lowpan/reassembly.c	2017-09-27 08:40:05.000000000 -0400
@@ -580,19 +580,14 @@ static int __net_init lowpan_frags_init_
 {
 	struct netns_ieee802154_lowpan *ieee802154_lowpan =
 		net_ieee802154_lowpan(net);
-	int res;
 
 	ieee802154_lowpan->frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
 	ieee802154_lowpan->frags.low_thresh = IPV6_FRAG_LOW_THRESH;
 	ieee802154_lowpan->frags.timeout = IPV6_FRAG_TIMEOUT;
 
-	res = inet_frags_init_net(&ieee802154_lowpan->frags);
-	if (res)
-		return res;
-	res = lowpan_frags_ns_sysctl_register(net);
-	if (res)
-		inet_frags_uninit_net(&ieee802154_lowpan->frags);
-	return res;
+	inet_frags_init_net(&ieee802154_lowpan->frags);
+
+	return lowpan_frags_ns_sysctl_register(net);
 }
 
 static void __net_exit lowpan_frags_exit_net(struct net *net)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/af_inet.c linux-libre-4.9.52-gnu/net/ipv4/af_inet.c
--- linux-libre-4.9-gnu/net/ipv4/af_inet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/af_inet.c	2017-09-27 08:40:05.000000000 -0400
@@ -1015,7 +1015,7 @@ static struct inet_protosw inetsw_array[
 		.type =       SOCK_DGRAM,
 		.protocol =   IPPROTO_ICMP,
 		.prot =       &ping_prot,
-		.ops =        &inet_dgram_ops,
+		.ops =        &inet_sockraw_ops,
 		.flags =      INET_PROTOSW_REUSE,
        },
 
@@ -1460,8 +1460,10 @@ int inet_gro_complete(struct sk_buff *sk
 	int proto = iph->protocol;
 	int err = -ENOSYS;
 
-	if (skb->encapsulation)
+	if (skb->encapsulation) {
+		skb_set_inner_protocol(skb, cpu_to_be16(ETH_P_IP));
 		skb_set_inner_network_header(skb, nhoff);
+	}
 
 	csum_replace2(&iph->check, iph->tot_len, newlen);
 	iph->tot_len = newlen;
@@ -1691,6 +1693,13 @@ static __net_init int inet_init_net(stru
 	net->ipv4.sysctl_ip_dynaddr = 0;
 	net->ipv4.sysctl_ip_early_demux = 1;
 
+	/* Some igmp sysctl, whose values are always used */
+	net->ipv4.sysctl_igmp_max_memberships = 20;
+	net->ipv4.sysctl_igmp_max_msf = 10;
+	/* IGMP reports for link-local multicast groups are enabled by default */
+	net->ipv4.sysctl_igmp_llm_reports = 1;
+	net->ipv4.sysctl_igmp_qrv = 2;
+
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/arp.c linux-libre-4.9.52-gnu/net/ipv4/arp.c
--- linux-libre-4.9-gnu/net/ipv4/arp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/arp.c	2017-09-27 08:40:05.000000000 -0400
@@ -1263,7 +1263,7 @@ void __init arp_init(void)
 /*
  *	ax25 -> ASCII conversion
  */
-static char *ax2asc2(ax25_address *a, char *buf)
+static void ax2asc2(ax25_address *a, char *buf)
 {
 	char c, *s;
 	int n;
@@ -1285,10 +1285,10 @@ static char *ax2asc2(ax25_address *a, ch
 	*s++ = n + '0';
 	*s++ = '\0';
 
-	if (*buf == '\0' || *buf == '-')
-		return "*";
-
-	return buf;
+	if (*buf == '\0' || *buf == '-') {
+		buf[0] = '*';
+		buf[1] = '\0';
+	}
 }
 #endif /* CONFIG_AX25 */
 
@@ -1322,7 +1322,7 @@ static void arp_format_neigh_entry(struc
 	}
 #endif
 	sprintf(tbuf, "%pI4", n->primary_key);
-	seq_printf(seq, "%-16s 0x%-10x0x%-10x%s     *        %s\n",
+	seq_printf(seq, "%-16s 0x%-10x0x%-10x%-17s     *        %s\n",
 		   tbuf, hatype, arp_state_to_flags(n), hbuffer, dev->name);
 	read_unlock(&n->lock);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/cipso_ipv4.c linux-libre-4.9.52-gnu/net/ipv4/cipso_ipv4.c
--- linux-libre-4.9-gnu/net/ipv4/cipso_ipv4.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/cipso_ipv4.c	2017-09-27 08:40:05.000000000 -0400
@@ -1587,6 +1587,10 @@ int cipso_v4_validate(const struct sk_bu
 				goto validate_return_locked;
 			}
 
+		if (opt_iter + 1 == opt_len) {
+			err_offset = opt_iter;
+			goto validate_return_locked;
+		}
 		tag_len = tag[1];
 		if (tag_len > (opt_len - opt_iter)) {
 			err_offset = opt_iter + 1;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/fib_frontend.c linux-libre-4.9.52-gnu/net/ipv4/fib_frontend.c
--- linux-libre-4.9-gnu/net/ipv4/fib_frontend.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/fib_frontend.c	2017-09-27 08:40:05.000000000 -0400
@@ -46,6 +46,7 @@
 #include <net/rtnetlink.h>
 #include <net/xfrm.h>
 #include <net/l3mdev.h>
+#include <net/lwtunnel.h>
 #include <trace/events/fib.h>
 
 #ifndef CONFIG_IP_MULTIPLE_TABLES
@@ -85,7 +86,7 @@ struct fib_table *fib_new_table(struct n
 	if (tb)
 		return tb;
 
-	if (id == RT_TABLE_LOCAL)
+	if (id == RT_TABLE_LOCAL && !net->ipv4.fib_has_custom_rules)
 		alias = fib_new_table(net, RT_TABLE_MAIN);
 
 	tb = fib_trie_table(id, alias);
@@ -676,6 +677,10 @@ static int rtm_to_fib_config(struct net
 			cfg->fc_mx_len = nla_len(attr);
 			break;
 		case RTA_MULTIPATH:
+			err = lwtunnel_valid_encap_type_attr(nla_data(attr),
+							     nla_len(attr));
+			if (err < 0)
+				goto errout;
 			cfg->fc_mp = nla_data(attr);
 			cfg->fc_mp_len = nla_len(attr);
 			break;
@@ -690,6 +695,9 @@ static int rtm_to_fib_config(struct net
 			break;
 		case RTA_ENCAP_TYPE:
 			cfg->fc_encap_type = nla_get_u16(attr);
+			err = lwtunnel_valid_encap_type(cfg->fc_encap_type);
+			if (err < 0)
+				goto errout;
 			break;
 		}
 	}
@@ -750,7 +758,7 @@ static int inet_dump_fib(struct sk_buff
 	unsigned int e = 0, s_e;
 	struct fib_table *tb;
 	struct hlist_head *head;
-	int dumped = 0;
+	int dumped = 0, err;
 
 	if (nlmsg_len(cb->nlh) >= sizeof(struct rtmsg) &&
 	    ((struct rtmsg *) nlmsg_data(cb->nlh))->rtm_flags & RTM_F_CLONED)
@@ -770,20 +778,27 @@ static int inet_dump_fib(struct sk_buff
 			if (dumped)
 				memset(&cb->args[2], 0, sizeof(cb->args) -
 						 2 * sizeof(cb->args[0]));
-			if (fib_table_dump(tb, skb, cb) < 0)
-				goto out;
+			err = fib_table_dump(tb, skb, cb);
+			if (err < 0) {
+				if (likely(skb->len))
+					goto out;
+
+				goto out_err;
+			}
 			dumped = 1;
 next:
 			e++;
 		}
 	}
 out:
+	err = skb->len;
+out_err:
 	rcu_read_unlock();
 
 	cb->args[1] = e;
 	cb->args[0] = h;
 
-	return skb->len;
+	return err;
 }
 
 /* Prepare and feed intra-kernel routing request.
@@ -1073,7 +1088,8 @@ static void nl_fib_input(struct sk_buff
 
 	net = sock_net(skb->sk);
 	nlh = nlmsg_hdr(skb);
-	if (skb->len < NLMSG_HDRLEN || skb->len < nlh->nlmsg_len ||
+	if (skb->len < nlmsg_total_size(sizeof(*frn)) ||
+	    skb->len < nlh->nlmsg_len ||
 	    nlmsg_len(nlh) < sizeof(*frn))
 		return;
 
@@ -1303,13 +1319,14 @@ static struct pernet_operations fib_net_
 
 void __init ip_fib_init(void)
 {
-	rtnl_register(PF_INET, RTM_NEWROUTE, inet_rtm_newroute, NULL, NULL);
-	rtnl_register(PF_INET, RTM_DELROUTE, inet_rtm_delroute, NULL, NULL);
-	rtnl_register(PF_INET, RTM_GETROUTE, NULL, inet_dump_fib, NULL);
+	fib_trie_init();
 
 	register_pernet_subsys(&fib_net_ops);
+
 	register_netdevice_notifier(&fib_netdev_notifier);
 	register_inetaddr_notifier(&fib_inetaddr_notifier);
 
-	fib_trie_init();
+	rtnl_register(PF_INET, RTM_NEWROUTE, inet_rtm_newroute, NULL, NULL);
+	rtnl_register(PF_INET, RTM_DELROUTE, inet_rtm_delroute, NULL, NULL);
+	rtnl_register(PF_INET, RTM_GETROUTE, NULL, inet_dump_fib, NULL);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/fib_semantics.c linux-libre-4.9.52-gnu/net/ipv4/fib_semantics.c
--- linux-libre-4.9-gnu/net/ipv4/fib_semantics.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/fib_semantics.c	2017-09-27 08:40:05.000000000 -0400
@@ -204,6 +204,7 @@ static void rt_fibinfo_free_cpus(struct
 static void free_fib_info_rcu(struct rcu_head *head)
 {
 	struct fib_info *fi = container_of(head, struct fib_info, rcu);
+	struct dst_metrics *m;
 
 	change_nexthops(fi) {
 		if (nexthop_nh->nh_dev)
@@ -214,8 +215,9 @@ static void free_fib_info_rcu(struct rcu
 		rt_fibinfo_free(&nexthop_nh->nh_rth_input);
 	} endfor_nexthops(fi);
 
-	if (fi->fib_metrics != (u32 *) dst_default_metrics)
-		kfree(fi->fib_metrics);
+	m = fi->fib_metrics;
+	if (m != &dst_default_metrics && atomic_dec_and_test(&m->refcnt))
+		kfree(m);
 	kfree(fi);
 }
 
@@ -982,11 +984,11 @@ fib_convert_metrics(struct fib_info *fi,
 			val = 255;
 		if (type == RTAX_FEATURES && (val & ~RTAX_FEATURE_MASK))
 			return -EINVAL;
-		fi->fib_metrics[type - 1] = val;
+		fi->fib_metrics->metrics[type - 1] = val;
 	}
 
 	if (ecn_ca)
-		fi->fib_metrics[RTAX_FEATURES - 1] |= DST_FEATURE_ECN_CA;
+		fi->fib_metrics->metrics[RTAX_FEATURES - 1] |= DST_FEATURE_ECN_CA;
 
 	return 0;
 }
@@ -1042,14 +1044,17 @@ struct fib_info *fib_create_info(struct
 	fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL);
 	if (!fi)
 		goto failure;
-	fib_info_cnt++;
 	if (cfg->fc_mx) {
-		fi->fib_metrics = kzalloc(sizeof(u32) * RTAX_MAX, GFP_KERNEL);
-		if (!fi->fib_metrics)
-			goto failure;
-	} else
-		fi->fib_metrics = (u32 *) dst_default_metrics;
-
+		fi->fib_metrics = kzalloc(sizeof(*fi->fib_metrics), GFP_KERNEL);
+		if (unlikely(!fi->fib_metrics)) {
+			kfree(fi);
+			return ERR_PTR(err);
+		}
+		atomic_set(&fi->fib_metrics->refcnt, 1);
+	} else {
+		fi->fib_metrics = (struct dst_metrics *)&dst_default_metrics;
+	}
+	fib_info_cnt++;
 	fi->fib_net = net;
 	fi->fib_protocol = cfg->fc_protocol;
 	fi->fib_scope = cfg->fc_scope;
@@ -1252,7 +1257,7 @@ int fib_dump_info(struct sk_buff *skb, u
 	if (fi->fib_priority &&
 	    nla_put_u32(skb, RTA_PRIORITY, fi->fib_priority))
 		goto nla_put_failure;
-	if (rtnetlink_put_metrics(skb, fi->fib_metrics) < 0)
+	if (rtnetlink_put_metrics(skb, fi->fib_metrics->metrics) < 0)
 		goto nla_put_failure;
 
 	if (fi->fib_prefsrc &&
@@ -1278,8 +1283,9 @@ int fib_dump_info(struct sk_buff *skb, u
 		    nla_put_u32(skb, RTA_FLOW, fi->fib_nh[0].nh_tclassid))
 			goto nla_put_failure;
 #endif
-		if (fi->fib_nh->nh_lwtstate)
-			lwtunnel_fill_encap(skb, fi->fib_nh->nh_lwtstate);
+		if (fi->fib_nh->nh_lwtstate &&
+		    lwtunnel_fill_encap(skb, fi->fib_nh->nh_lwtstate) < 0)
+			goto nla_put_failure;
 	}
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 	if (fi->fib_nhs > 1) {
@@ -1315,8 +1321,10 @@ int fib_dump_info(struct sk_buff *skb, u
 			    nla_put_u32(skb, RTA_FLOW, nh->nh_tclassid))
 				goto nla_put_failure;
 #endif
-			if (nh->nh_lwtstate)
-				lwtunnel_fill_encap(skb, nh->nh_lwtstate);
+			if (nh->nh_lwtstate &&
+			    lwtunnel_fill_encap(skb, nh->nh_lwtstate) < 0)
+				goto nla_put_failure;
+
 			/* length of rtnetlink header + attributes */
 			rtnh->rtnh_len = nlmsg_get_pos(skb) - (void *) rtnh;
 		} endfor_nexthops(fi);
@@ -1617,8 +1625,13 @@ void fib_select_multipath(struct fib_res
 void fib_select_path(struct net *net, struct fib_result *res,
 		     struct flowi4 *fl4, int mp_hash)
 {
+	bool oif_check;
+
+	oif_check = (fl4->flowi4_oif == 0 ||
+		     fl4->flowi4_flags & FLOWI_FLAG_SKIP_NH_OIF);
+
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
-	if (res->fi->fib_nhs > 1 && fl4->flowi4_oif == 0) {
+	if (res->fi->fib_nhs > 1 && oif_check) {
 		if (mp_hash < 0)
 			mp_hash = get_hash_from_flowi4(fl4) >> 1;
 
@@ -1628,7 +1641,7 @@ void fib_select_path(struct net *net, st
 #endif
 	if (!res->prefixlen &&
 	    res->table->tb_num_default > 1 &&
-	    res->type == RTN_UNICAST && !fl4->flowi4_oif)
+	    res->type == RTN_UNICAST && oif_check)
 		fib_select_default(fl4, res);
 
 	if (!fl4->saddr)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/fib_trie.c linux-libre-4.9.52-gnu/net/ipv4/fib_trie.c
--- linux-libre-4.9-gnu/net/ipv4/fib_trie.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/fib_trie.c	2017-09-27 08:40:05.000000000 -0400
@@ -1932,6 +1932,8 @@ static int fn_trie_dump_leaf(struct key_
 
 	/* rcu_read_lock is hold by caller */
 	hlist_for_each_entry_rcu(fa, &l->leaf, fa_list) {
+		int err;
+
 		if (i < s_i) {
 			i++;
 			continue;
@@ -1942,17 +1944,14 @@ static int fn_trie_dump_leaf(struct key_
 			continue;
 		}
 
-		if (fib_dump_info(skb, NETLINK_CB(cb->skb).portid,
-				  cb->nlh->nlmsg_seq,
-				  RTM_NEWROUTE,
-				  tb->tb_id,
-				  fa->fa_type,
-				  xkey,
-				  KEYLENGTH - fa->fa_slen,
-				  fa->fa_tos,
-				  fa->fa_info, NLM_F_MULTI) < 0) {
+		err = fib_dump_info(skb, NETLINK_CB(cb->skb).portid,
+				    cb->nlh->nlmsg_seq, RTM_NEWROUTE,
+				    tb->tb_id, fa->fa_type,
+				    xkey, KEYLENGTH - fa->fa_slen,
+				    fa->fa_tos, fa->fa_info, NLM_F_MULTI);
+		if (err < 0) {
 			cb->args[4] = i;
-			return -1;
+			return err;
 		}
 		i++;
 	}
@@ -1974,10 +1973,13 @@ int fib_table_dump(struct fib_table *tb,
 	t_key key = cb->args[3];
 
 	while ((l = leaf_walk_rcu(&tp, key)) != NULL) {
-		if (fn_trie_dump_leaf(l, tb, skb, cb) < 0) {
+		int err;
+
+		err = fn_trie_dump_leaf(l, tb, skb, cb);
+		if (err < 0) {
 			cb->args[3] = key;
 			cb->args[2] = count;
-			return -1;
+			return err;
 		}
 
 		++count;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/igmp.c linux-libre-4.9.52-gnu/net/ipv4/igmp.c
--- linux-libre-4.9-gnu/net/ipv4/igmp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/igmp.c	2017-09-27 08:40:05.000000000 -0400
@@ -219,9 +219,14 @@ static void igmp_start_timer(struct ip_m
 static void igmp_gq_start_timer(struct in_device *in_dev)
 {
 	int tv = prandom_u32() % in_dev->mr_maxdelay;
+	unsigned long exp = jiffies + tv + 2;
+
+	if (in_dev->mr_gq_running &&
+	    time_after_eq(exp, (in_dev->mr_gq_timer).expires))
+		return;
 
 	in_dev->mr_gq_running = 1;
-	if (!mod_timer(&in_dev->mr_gq_timer, jiffies+tv+2))
+	if (!mod_timer(&in_dev->mr_gq_timer, exp))
 		in_dev_hold(in_dev);
 }
 
@@ -1107,6 +1112,7 @@ static void igmpv3_add_delrec(struct in_
 	pmc = kzalloc(sizeof(*pmc), GFP_KERNEL);
 	if (!pmc)
 		return;
+	spin_lock_init(&pmc->lock);
 	spin_lock_bh(&im->lock);
 	pmc->interface = im->interface;
 	in_dev_hold(in_dev);
@@ -1167,6 +1173,7 @@ static void igmpv3_del_delrec(struct in_
 				psf->sf_crcount = im->crcount;
 		}
 		in_dev_put(pmc->interface);
+		kfree(pmc);
 	}
 	spin_unlock_bh(&im->lock);
 }
@@ -2065,21 +2072,26 @@ static int ip_mc_add_src(struct in_devic
 
 static void ip_mc_clear_src(struct ip_mc_list *pmc)
 {
-	struct ip_sf_list *psf, *nextpsf;
+	struct ip_sf_list *psf, *nextpsf, *tomb, *sources;
 
-	for (psf = pmc->tomb; psf; psf = nextpsf) {
+	spin_lock_bh(&pmc->lock);
+	tomb = pmc->tomb;
+	pmc->tomb = NULL;
+	sources = pmc->sources;
+	pmc->sources = NULL;
+	pmc->sfmode = MCAST_EXCLUDE;
+	pmc->sfcount[MCAST_INCLUDE] = 0;
+	pmc->sfcount[MCAST_EXCLUDE] = 1;
+	spin_unlock_bh(&pmc->lock);
+
+	for (psf = tomb; psf; psf = nextpsf) {
 		nextpsf = psf->sf_next;
 		kfree(psf);
 	}
-	pmc->tomb = NULL;
-	for (psf = pmc->sources; psf; psf = nextpsf) {
+	for (psf = sources; psf; psf = nextpsf) {
 		nextpsf = psf->sf_next;
 		kfree(psf);
 	}
-	pmc->sources = NULL;
-	pmc->sfmode = MCAST_EXCLUDE;
-	pmc->sfcount[MCAST_INCLUDE] = 0;
-	pmc->sfcount[MCAST_EXCLUDE] = 1;
 }
 
 /* Join a multicast group
@@ -2962,12 +2974,6 @@ static int __net_init igmp_net_init(stru
 		goto out_sock;
 	}
 
-	/* Sysctl initialization */
-	net->ipv4.sysctl_igmp_max_memberships = 20;
-	net->ipv4.sysctl_igmp_max_msf = 10;
-	/* IGMP reports for link-local multicast groups are enabled by default */
-	net->ipv4.sysctl_igmp_llm_reports = 1;
-	net->ipv4.sysctl_igmp_qrv = 2;
 	return 0;
 
 out_sock:
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/inet_connection_sock.c linux-libre-4.9.52-gnu/net/ipv4/inet_connection_sock.c
--- linux-libre-4.9-gnu/net/ipv4/inet_connection_sock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/inet_connection_sock.c	2017-09-27 08:40:05.000000000 -0400
@@ -665,6 +665,8 @@ struct sock *inet_csk_clone_lock(const s
 		/* listeners have SOCK_RCU_FREE, not the children */
 		sock_reset_flag(newsk, SOCK_RCU_FREE);
 
+		inet_sk(newsk)->mc_list = NULL;
+
 		newsk->sk_mark = inet_rsk(req)->ir_mark;
 		atomic64_set(&newsk->sk_cookie,
 			     atomic64_read(&inet_rsk(req)->ir_cookie));
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/inet_fragment.c linux-libre-4.9.52-gnu/net/ipv4/inet_fragment.c
--- linux-libre-4.9-gnu/net/ipv4/inet_fragment.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/inet_fragment.c	2017-09-27 08:40:05.000000000 -0400
@@ -234,10 +234,8 @@ evict_again:
 	cond_resched();
 
 	if (read_seqretry(&f->rnd_seqlock, seq) ||
-	    percpu_counter_sum(&nf->mem))
+	    sum_frag_mem_limit(nf))
 		goto evict_again;
-
-	percpu_counter_destroy(&nf->mem);
 }
 EXPORT_SYMBOL(inet_frags_exit_net);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/ip_fragment.c linux-libre-4.9.52-gnu/net/ipv4/ip_fragment.c
--- linux-libre-4.9-gnu/net/ipv4/ip_fragment.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/ip_fragment.c	2017-09-27 08:40:05.000000000 -0400
@@ -835,8 +835,6 @@ static void __init ip4_frags_ctl_registe
 
 static int __net_init ipv4_frags_init_net(struct net *net)
 {
-	int res;
-
 	/* Fragment cache limits.
 	 *
 	 * The fragment memory accounting code, (tries to) account for
@@ -862,13 +860,9 @@ static int __net_init ipv4_frags_init_ne
 
 	net->ipv4.frags.max_dist = 64;
 
-	res = inet_frags_init_net(&net->ipv4.frags);
-	if (res)
-		return res;
-	res = ip4_frags_ns_ctl_register(net);
-	if (res)
-		inet_frags_uninit_net(&net->ipv4.frags);
-	return res;
+	inet_frags_init_net(&net->ipv4.frags);
+
+	return ip4_frags_ns_ctl_register(net);
 }
 
 static void __net_exit ipv4_frags_exit_net(struct net *net)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/ip_output.c linux-libre-4.9.52-gnu/net/ipv4/ip_output.c
--- linux-libre-4.9-gnu/net/ipv4/ip_output.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/ip_output.c	2017-09-27 08:40:05.000000000 -0400
@@ -936,10 +936,12 @@ static int __ip_append_data(struct sock
 		csummode = CHECKSUM_PARTIAL;
 
 	cork->length += length;
-	if (((length > mtu) || (skb && skb_is_gso(skb))) &&
+	if ((skb && skb_is_gso(skb)) ||
+	    ((length > mtu) &&
+	    (skb_queue_len(queue) <= 1) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len &&
-	    (sk->sk_type == SOCK_DGRAM) && !sk->sk_no_check_tx) {
+	    (sk->sk_type == SOCK_DGRAM) && !sk->sk_no_check_tx)) {
 		err = ip_ufo_append_data(sk, queue, getfrag, from, length,
 					 hh_len, fragheaderlen, transhdrlen,
 					 maxfraglen, flags);
@@ -1255,6 +1257,7 @@ ssize_t	ip_append_page(struct sock *sk,
 		return -EINVAL;
 
 	if ((size + skb->len > mtu) &&
+	    (skb_queue_len(&sk->sk_write_queue) == 1) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO)) {
 		if (skb->ip_summed != CHECKSUM_PARTIAL)
@@ -1606,6 +1609,7 @@ void ip_send_unicast_reply(struct sock *
 	sk->sk_protocol = ip_hdr(skb)->protocol;
 	sk->sk_bound_dev_if = arg->bound_dev_if;
 	sk->sk_sndbuf = sysctl_wmem_default;
+	sk->sk_mark = fl4.flowi4_mark;
 	err = ip_append_data(sk, &fl4, ip_reply_glue_bits, arg->iov->iov_base,
 			     len, 0, &ipc, &rt, MSG_DONTWAIT);
 	if (unlikely(err)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/ip_sockglue.c linux-libre-4.9.52-gnu/net/ipv4/ip_sockglue.c
--- linux-libre-4.9-gnu/net/ipv4/ip_sockglue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/ip_sockglue.c	2017-09-27 08:40:05.000000000 -0400
@@ -105,10 +105,10 @@ static void ip_cmsg_recv_checksum(struct
 	if (skb->ip_summed != CHECKSUM_COMPLETE)
 		return;
 
-	if (offset != 0)
-		csum = csum_sub(csum,
-				csum_partial(skb_transport_header(skb) + tlen,
-					     offset, 0));
+	if (offset != 0) {
+		int tend_off = skb_transport_offset(skb) + tlen;
+		csum = csum_sub(csum, skb_checksum(skb, tend_off, offset, 0));
+	}
 
 	put_cmsg(msg, SOL_IP, IP_CHECKSUM, sizeof(__wsum), &csum);
 }
@@ -137,7 +137,7 @@ static void ip_cmsg_recv_dstaddr(struct
 	const struct iphdr *iph = ip_hdr(skb);
 	__be16 *ports = (__be16 *)skb_transport_header(skb);
 
-	if (skb_transport_offset(skb) + 4 > skb->len)
+	if (skb_transport_offset(skb) + 4 > (int)skb->len)
 		return;
 
 	/* All current transport protocols have the port numbers in the
@@ -474,16 +474,15 @@ static bool ipv4_datagram_support_cmsg(c
 		return false;
 
 	/* Support IP_PKTINFO on tstamp packets if requested, to correlate
-	 * timestamp with egress dev. Not possible for packets without dev
+	 * timestamp with egress dev. Not possible for packets without iif
 	 * or without payload (SOF_TIMESTAMPING_OPT_TSONLY).
 	 */
-	if ((!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG)) ||
-	    (!skb->dev))
+	info = PKTINFO_SKB_CB(skb);
+	if (!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG) ||
+	    !info->ipi_ifindex)
 		return false;
 
-	info = PKTINFO_SKB_CB(skb);
 	info->ipi_spec_dst.s_addr = ip_hdr(skb)->saddr;
-	info->ipi_ifindex = skb->dev->ifindex;
 	return true;
 }
 
@@ -1202,14 +1201,27 @@ void ipv4_pktinfo_prepare(const struct s
 		 * which has interface index (iif) as the first member of the
 		 * underlying inet{6}_skb_parm struct. This code then overlays
 		 * PKTINFO_SKB_CB and in_pktinfo also has iif as the first
-		 * element so the iif is picked up from the prior IPCB
+		 * element so the iif is picked up from the prior IPCB. If iif
+		 * is the loopback interface, then return the sending interface
+		 * (e.g., process binds socket to eth0 for Tx which is
+		 * redirected to loopback in the rtable/dst).
 		 */
+		if (pktinfo->ipi_ifindex == LOOPBACK_IFINDEX)
+			pktinfo->ipi_ifindex = inet_iif(skb);
+
 		pktinfo->ipi_spec_dst.s_addr = fib_compute_spec_dst(skb);
 	} else {
 		pktinfo->ipi_ifindex = 0;
 		pktinfo->ipi_spec_dst.s_addr = 0;
 	}
-	skb_dst_drop(skb);
+	/* We need to keep the dst for __ip_options_echo()
+	 * We could restrict the test to opt.ts_needtime || opt.srr,
+	 * but the following is good enough as IP options are not often used.
+	 */
+	if (unlikely(IPCB(skb)->opt.optlen))
+		skb_dst_force(skb);
+	else
+		skb_dst_drop(skb);
 }
 
 int ip_setsockopt(struct sock *sk, int level,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/ip_tunnel.c linux-libre-4.9.52-gnu/net/ipv4/ip_tunnel.c
--- linux-libre-4.9-gnu/net/ipv4/ip_tunnel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/ip_tunnel.c	2017-09-27 08:40:05.000000000 -0400
@@ -609,8 +609,8 @@ void ip_md_tunnel_xmit(struct sk_buff *s
 		ip_rt_put(rt);
 		goto tx_dropped;
 	}
-	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, proto, key->tos,
-		      key->ttl, df, !net_eq(tunnel->net, dev_net(dev)));
+	iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, proto, tos, ttl,
+		      df, !net_eq(tunnel->net, dev_net(dev)));
 	return;
 tx_error:
 	dev->stats.tx_errors++;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/ip_tunnel_core.c linux-libre-4.9.52-gnu/net/ipv4/ip_tunnel_core.c
--- linux-libre-4.9-gnu/net/ipv4/ip_tunnel_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/ip_tunnel_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -313,6 +313,7 @@ static const struct lwtunnel_encap_ops i
 	.fill_encap = ip_tun_fill_encap_info,
 	.get_encap_size = ip_tun_encap_nlsize,
 	.cmp_encap = ip_tun_cmp_encap,
+	.owner = THIS_MODULE,
 };
 
 static const struct nla_policy ip6_tun_policy[LWTUNNEL_IP6_MAX + 1] = {
@@ -403,6 +404,7 @@ static const struct lwtunnel_encap_ops i
 	.fill_encap = ip6_tun_fill_encap_info,
 	.get_encap_size = ip6_tun_encap_nlsize,
 	.cmp_encap = ip_tun_cmp_encap,
+	.owner = THIS_MODULE,
 };
 
 void __init ip_tunnel_core_init(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/netfilter/nf_reject_ipv4.c linux-libre-4.9.52-gnu/net/ipv4/netfilter/nf_reject_ipv4.c
--- linux-libre-4.9-gnu/net/ipv4/netfilter/nf_reject_ipv4.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/netfilter/nf_reject_ipv4.c	2017-09-27 08:40:05.000000000 -0400
@@ -126,6 +126,8 @@ void nf_send_reset(struct net *net, stru
 	/* ip_route_me_harder expects skb->dst to be set */
 	skb_dst_set_noref(nskb, skb_dst(oldskb));
 
+	nskb->mark = IP4_REPLY_MARK(net, oldskb->mark);
+
 	skb_reserve(nskb, LL_MAX_HEADER);
 	niph = nf_reject_iphdr_put(nskb, oldskb, IPPROTO_TCP,
 				   ip4_dst_hoplimit(skb_dst(nskb)));
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/netfilter.c linux-libre-4.9.52-gnu/net/ipv4/netfilter.c
--- linux-libre-4.9-gnu/net/ipv4/netfilter.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/netfilter.c	2017-09-27 08:40:05.000000000 -0400
@@ -23,7 +23,8 @@ int ip_route_me_harder(struct net *net,
 	struct rtable *rt;
 	struct flowi4 fl4 = {};
 	__be32 saddr = iph->saddr;
-	__u8 flags = skb->sk ? inet_sk_flowi_flags(skb->sk) : 0;
+	const struct sock *sk = skb_to_full_sk(skb);
+	__u8 flags = sk ? inet_sk_flowi_flags(sk) : 0;
 	struct net_device *dev = skb_dst(skb)->dev;
 	unsigned int hh_len;
 
@@ -40,7 +41,7 @@ int ip_route_me_harder(struct net *net,
 	fl4.daddr = iph->daddr;
 	fl4.saddr = saddr;
 	fl4.flowi4_tos = RT_TOS(iph->tos);
-	fl4.flowi4_oif = skb->sk ? skb->sk->sk_bound_dev_if : 0;
+	fl4.flowi4_oif = sk ? sk->sk_bound_dev_if : 0;
 	if (!fl4.flowi4_oif)
 		fl4.flowi4_oif = l3mdev_master_ifindex(dev);
 	fl4.flowi4_mark = skb->mark;
@@ -61,7 +62,7 @@ int ip_route_me_harder(struct net *net,
 	    xfrm_decode_session(skb, flowi4_to_flowi(&fl4), AF_INET) == 0) {
 		struct dst_entry *dst = skb_dst(skb);
 		skb_dst_set(skb, NULL);
-		dst = xfrm_lookup(net, dst, flowi4_to_flowi(&fl4), skb->sk, 0);
+		dst = xfrm_lookup(net, dst, flowi4_to_flowi(&fl4), sk, 0);
 		if (IS_ERR(dst))
 			return PTR_ERR(dst);
 		skb_dst_set(skb, dst);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/ping.c linux-libre-4.9.52-gnu/net/ipv4/ping.c
--- linux-libre-4.9-gnu/net/ipv4/ping.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/ping.c	2017-09-27 08:40:05.000000000 -0400
@@ -156,17 +156,18 @@ int ping_hash(struct sock *sk)
 void ping_unhash(struct sock *sk)
 {
 	struct inet_sock *isk = inet_sk(sk);
+
 	pr_debug("ping_unhash(isk=%p,isk->num=%u)\n", isk, isk->inet_num);
+	write_lock_bh(&ping_table.lock);
 	if (sk_hashed(sk)) {
-		write_lock_bh(&ping_table.lock);
 		hlist_nulls_del(&sk->sk_nulls_node);
 		sk_nulls_node_init(&sk->sk_nulls_node);
 		sock_put(sk);
 		isk->inet_num = 0;
 		isk->inet_sport = 0;
 		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
-		write_unlock_bh(&ping_table.lock);
 	}
+	write_unlock_bh(&ping_table.lock);
 }
 EXPORT_SYMBOL_GPL(ping_unhash);
 
@@ -642,6 +643,8 @@ static int ping_v4_push_pending_frames(s
 {
 	struct sk_buff *skb = skb_peek(&sk->sk_write_queue);
 
+	if (!skb)
+		return 0;
 	pfh->wcheck = csum_partial((char *)&pfh->icmph,
 		sizeof(struct icmphdr), pfh->wcheck);
 	pfh->icmph.checksum = csum_fold(pfh->wcheck);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/raw.c linux-libre-4.9.52-gnu/net/ipv4/raw.c
--- linux-libre-4.9-gnu/net/ipv4/raw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/raw.c	2017-09-27 08:40:05.000000000 -0400
@@ -356,6 +356,9 @@ static int raw_send_hdrinc(struct sock *
 			       rt->dst.dev->mtu);
 		return -EMSGSIZE;
 	}
+	if (length < sizeof(struct iphdr))
+		return -EINVAL;
+
 	if (flags&MSG_PROBE)
 		goto out;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/route.c linux-libre-4.9.52-gnu/net/ipv4/route.c
--- linux-libre-4.9-gnu/net/ipv4/route.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/route.c	2017-09-27 08:40:05.000000000 -0400
@@ -1247,7 +1247,7 @@ static unsigned int ipv4_mtu(const struc
 	if (mtu)
 		return mtu;
 
-	mtu = dst->dev->mtu;
+	mtu = READ_ONCE(dst->dev->mtu);
 
 	if (unlikely(dst_metric_locked(dst, RTAX_MTU))) {
 		if (rt->rt_uses_gateway && mtu > 576)
@@ -1364,8 +1364,12 @@ static void rt_add_uncached_list(struct
 
 static void ipv4_dst_destroy(struct dst_entry *dst)
 {
+	struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst);
 	struct rtable *rt = (struct rtable *) dst;
 
+	if (p != &dst_default_metrics && atomic_dec_and_test(&p->refcnt))
+		kfree(p);
+
 	if (!list_empty(&rt->rt_uncached)) {
 		struct uncached_list *ul = rt->rt_uncached_list;
 
@@ -1417,7 +1421,11 @@ static void rt_set_nexthop(struct rtable
 			rt->rt_gateway = nh->nh_gw;
 			rt->rt_uses_gateway = 1;
 		}
-		dst_init_metrics(&rt->dst, fi->fib_metrics, true);
+		dst_init_metrics(&rt->dst, fi->fib_metrics->metrics, true);
+		if (fi->fib_metrics != &dst_default_metrics) {
+			rt->dst._metrics |= DST_METRICS_REFCOUNTED;
+			atomic_inc(&fi->fib_metrics->refcnt);
+		}
 #ifdef CONFIG_IP_ROUTE_CLASSID
 		rt->dst.tclassid = nh->nh_tclassid;
 #endif
@@ -1902,7 +1910,8 @@ local_input:
 		}
 	}
 
-	rth = rt_dst_alloc(net->loopback_dev, flags | RTCF_LOCAL, res.type,
+	rth = rt_dst_alloc(l3mdev_master_dev_rcu(dev) ? : net->loopback_dev,
+			   flags | RTCF_LOCAL, res.type,
 			   IN_DEV_CONF_GET(in_dev, NOPOLICY), false, do_cache);
 	if (!rth)
 		goto e_nobufs;
@@ -1967,6 +1976,7 @@ int ip_route_input_noref(struct sk_buff
 {
 	int res;
 
+	tos &= IPTOS_RT_MASK;
 	rcu_read_lock();
 
 	/* Multicast recognition logic is moved from route cache to here.
@@ -2439,7 +2449,7 @@ static int rt_fill_info(struct net *net,
 	r->rtm_dst_len	= 32;
 	r->rtm_src_len	= 0;
 	r->rtm_tos	= fl4->flowi4_tos;
-	r->rtm_table	= table_id;
+	r->rtm_table	= table_id < 256 ? table_id : RT_TABLE_COMPAT;
 	if (nla_put_u32(skb, RTA_TABLE, table_id))
 		goto nla_put_failure;
 	r->rtm_type	= rt->rt_type;
@@ -2567,7 +2577,7 @@ static int inet_rtm_getroute(struct sk_b
 	skb_reset_network_header(skb);
 
 	/* Bugfix: need to give ip_route_input enough of an IP header to not gag. */
-	ip_hdr(skb)->protocol = IPPROTO_ICMP;
+	ip_hdr(skb)->protocol = IPPROTO_UDP;
 	skb_reserve(skb, MAX_HEADER + sizeof(struct iphdr));
 
 	src = tb[RTA_SRC] ? nla_get_in_addr(tb[RTA_SRC]) : 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/syncookies.c linux-libre-4.9.52-gnu/net/ipv4/syncookies.c
--- linux-libre-4.9-gnu/net/ipv4/syncookies.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/syncookies.c	2017-09-27 08:40:05.000000000 -0400
@@ -334,6 +334,7 @@ struct sock *cookie_v4_check(struct sock
 	treq = tcp_rsk(req);
 	treq->rcv_isn		= ntohl(th->seq) - 1;
 	treq->snt_isn		= cookie;
+	treq->txhash		= net_tx_rndhash();
 	req->mss		= mss;
 	ireq->ir_num		= ntohs(th->dest);
 	ireq->ir_rmt_port	= th->source;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/sysctl_net_ipv4.c linux-libre-4.9.52-gnu/net/ipv4/sysctl_net_ipv4.c
--- linux-libre-4.9-gnu/net/ipv4/sysctl_net_ipv4.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/sysctl_net_ipv4.c	2017-09-27 08:40:05.000000000 -0400
@@ -958,7 +958,7 @@ static struct ctl_table ipv4_net_table[]
 		.data		= &init_net.ipv4.sysctl_tcp_notsent_lowat,
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_douintvec,
 	},
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 	{
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_bbr.c linux-libre-4.9.52-gnu/net/ipv4/tcp_bbr.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_bbr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_bbr.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,7 +83,8 @@ struct bbr {
 		cwnd_gain:10,	/* current gain for setting cwnd */
 		full_bw_cnt:3,	/* number of rounds without large bw gains */
 		cycle_idx:3,	/* current index in pacing_gain cycle array */
-		unused_b:6;
+		has_seen_rtt:1, /* have we seen an RTT sample yet? */
+		unused_b:5;
 	u32	prior_cwnd;	/* prior cwnd upon entering loss recovery */
 	u32	full_bw;	/* recent bw, to estimate if pipe is full */
 };
@@ -182,6 +183,35 @@ static u64 bbr_rate_bytes_per_sec(struct
 	return rate >> BW_SCALE;
 }
 
+/* Convert a BBR bw and gain factor to a pacing rate in bytes per second. */
+static u32 bbr_bw_to_pacing_rate(struct sock *sk, u32 bw, int gain)
+{
+	u64 rate = bw;
+
+	rate = bbr_rate_bytes_per_sec(sk, rate, gain);
+	rate = min_t(u64, rate, sk->sk_max_pacing_rate);
+	return rate;
+}
+
+/* Initialize pacing rate to: high_gain * init_cwnd / RTT. */
+static void bbr_init_pacing_rate_from_rtt(struct sock *sk)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct bbr *bbr = inet_csk_ca(sk);
+	u64 bw;
+	u32 rtt_us;
+
+	if (tp->srtt_us) {		/* any RTT sample yet? */
+		rtt_us = max(tp->srtt_us >> 3, 1U);
+		bbr->has_seen_rtt = 1;
+	} else {			 /* no RTT sample yet */
+		rtt_us = USEC_PER_MSEC;	 /* use nominal default RTT */
+	}
+	bw = (u64)tp->snd_cwnd * BW_UNIT;
+	do_div(bw, rtt_us);
+	sk->sk_pacing_rate = bbr_bw_to_pacing_rate(sk, bw, bbr_high_gain);
+}
+
 /* Pace using current bw estimate and a gain factor. In order to help drive the
  * network toward lower queues while maintaining high utilization and low
  * latency, the average pacing rate aims to be slightly (~1%) lower than the
@@ -191,12 +221,13 @@ static u64 bbr_rate_bytes_per_sec(struct
  */
 static void bbr_set_pacing_rate(struct sock *sk, u32 bw, int gain)
 {
+	struct tcp_sock *tp = tcp_sk(sk);
 	struct bbr *bbr = inet_csk_ca(sk);
-	u64 rate = bw;
+	u32 rate = bbr_bw_to_pacing_rate(sk, bw, gain);
 
-	rate = bbr_rate_bytes_per_sec(sk, rate, gain);
-	rate = min_t(u64, rate, sk->sk_max_pacing_rate);
-	if (bbr->mode != BBR_STARTUP || rate > sk->sk_pacing_rate)
+	if (unlikely(!bbr->has_seen_rtt && tp->srtt_us))
+		bbr_init_pacing_rate_from_rtt(sk);
+	if (bbr_full_bw_reached(sk) || rate > sk->sk_pacing_rate)
 		sk->sk_pacing_rate = rate;
 }
 
@@ -769,7 +800,6 @@ static void bbr_init(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct bbr *bbr = inet_csk_ca(sk);
-	u64 bw;
 
 	bbr->prior_cwnd = 0;
 	bbr->tso_segs_goal = 0;	 /* default segs per skb until first ACK */
@@ -785,11 +815,8 @@ static void bbr_init(struct sock *sk)
 
 	minmax_reset(&bbr->bw, bbr->rtt_cnt, 0);  /* init max bw to 0 */
 
-	/* Initialize pacing rate to: high_gain * init_cwnd / RTT. */
-	bw = (u64)tp->snd_cwnd * BW_UNIT;
-	do_div(bw, (tp->srtt_us >> 3) ? : USEC_PER_MSEC);
-	sk->sk_pacing_rate = 0;		/* force an update of sk_pacing_rate */
-	bbr_set_pacing_rate(sk, bw, bbr_high_gain);
+	bbr->has_seen_rtt = 0;
+	bbr_init_pacing_rate_from_rtt(sk);
 
 	bbr->restore_cwnd = 0;
 	bbr->round_start = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp.c linux-libre-4.9.52-gnu/net/ipv4/tcp.c
--- linux-libre-4.9-gnu/net/ipv4/tcp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp.c	2017-09-27 08:40:05.000000000 -0400
@@ -772,6 +772,12 @@ ssize_t tcp_splice_read(struct socket *s
 				ret = -EAGAIN;
 				break;
 			}
+			/* if __tcp_splice_read() got nothing while we have
+			 * an skb in receive queue, we do not want to loop.
+			 * This might happen with URG data.
+			 */
+			if (!skb_queue_empty(&sk->sk_receive_queue))
+				break;
 			sk_wait_data(sk, &timeo, NULL);
 			if (signal_pending(current)) {
 				ret = sock_intr_errno(timeo);
@@ -1072,9 +1078,12 @@ static int tcp_sendmsg_fastopen(struct s
 				int *copied, size_t size)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
+	struct sockaddr *uaddr = msg->msg_name;
 	int err, flags;
 
-	if (!(sysctl_tcp_fastopen & TFO_CLIENT_ENABLE))
+	if (!(sysctl_tcp_fastopen & TFO_CLIENT_ENABLE) ||
+	    (uaddr && msg->msg_namelen >= sizeof(uaddr->sa_family) &&
+	     uaddr->sa_family == AF_UNSPEC))
 		return -EOPNOTSUPP;
 	if (tp->fastopen_req)
 		return -EALREADY; /* Another Fast Open is in progress */
@@ -1087,7 +1096,7 @@ static int tcp_sendmsg_fastopen(struct s
 	tp->fastopen_req->size = size;
 
 	flags = (msg->msg_flags & MSG_DONTWAIT) ? O_NONBLOCK : 0;
-	err = __inet_stream_connect(sk->sk_socket, msg->msg_name,
+	err = __inet_stream_connect(sk->sk_socket, uaddr,
 				    msg->msg_namelen, flags);
 	*copied = tp->fastopen_req->copied;
 	tcp_free_fastopen_req(tp);
@@ -2288,9 +2297,16 @@ int tcp_disconnect(struct sock *sk, int
 	tcp_set_ca_state(sk, TCP_CA_Open);
 	tcp_clear_retrans(tp);
 	inet_csk_delack_init(sk);
+	/* Initialize rcv_mss to TCP_MIN_MSS to avoid division by 0
+	 * issue in __tcp_select_window()
+	 */
+	icsk->icsk_ack.rcv_mss = TCP_MIN_MSS;
 	tcp_init_send_head(sk);
 	memset(&tp->rx_opt, 0, sizeof(tp->rx_opt));
 	__sk_dst_reset(sk);
+	dst_release(sk->sk_rx_dst);
+	sk->sk_rx_dst = NULL;
+	tcp_saved_syn_free(tp);
 
 	WARN_ON(inet->inet_num && !icsk->icsk_bind_hash);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_cong.c linux-libre-4.9.52-gnu/net/ipv4/tcp_cong.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_cong.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_cong.c	2017-09-27 08:40:05.000000000 -0400
@@ -167,12 +167,8 @@ void tcp_assign_congestion_control(struc
 	}
 out:
 	rcu_read_unlock();
+	memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
 
-	/* Clear out private data before diag gets it and
-	 * the ca has not been initialized.
-	 */
-	if (ca->get_info)
-		memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
 	if (ca->flags & TCP_CONG_NEEDS_ECN)
 		INET_ECN_xmit(sk);
 	else
@@ -183,6 +179,7 @@ void tcp_init_congestion_control(struct
 {
 	const struct inet_connection_sock *icsk = inet_csk(sk);
 
+	tcp_sk(sk)->prior_ssthresh = 0;
 	if (icsk->icsk_ca_ops->init)
 		icsk->icsk_ca_ops->init(sk);
 	if (tcp_ca_needs_ecn(sk))
@@ -199,11 +196,10 @@ static void tcp_reinit_congestion_contro
 	tcp_cleanup_congestion_control(sk);
 	icsk->icsk_ca_ops = ca;
 	icsk->icsk_ca_setsockopt = 1;
+	memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
 
-	if (sk->sk_state != TCP_CLOSE) {
-		memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
+	if (sk->sk_state != TCP_CLOSE)
 		tcp_init_congestion_control(sk);
-	}
 }
 
 /* Manage refcounts on socket close. */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_fastopen.c linux-libre-4.9.52-gnu/net/ipv4/tcp_fastopen.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_fastopen.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_fastopen.c	2017-09-27 08:40:05.000000000 -0400
@@ -113,7 +113,7 @@ static bool tcp_fastopen_cookie_gen(stru
 		struct tcp_fastopen_cookie tmp;
 
 		if (__tcp_fastopen_cookie_gen(&ip6h->saddr, &tmp)) {
-			struct in6_addr *buf = (struct in6_addr *) tmp.val;
+			struct in6_addr *buf = &tmp.addr;
 			int i;
 
 			for (i = 0; i < 4; i++)
@@ -205,6 +205,7 @@ static struct sock *tcp_fastopen_create_
 	 * scaled. So correct it appropriately.
 	 */
 	tp->snd_wnd = ntohs(tcp_hdr(skb)->window);
+	tp->max_window = tp->snd_wnd;
 
 	/* Activate the retrans timer so that SYNACK can be retransmitted.
 	 * The request socket is not added to the ehash
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_input.c linux-libre-4.9.52-gnu/net/ipv4/tcp_input.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_input.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_input.c	2017-09-27 08:40:05.000000000 -0400
@@ -1177,13 +1177,14 @@ static int tcp_match_skb_to_sack(struct
 		 */
 		if (pkt_len > mss) {
 			unsigned int new_len = (pkt_len / mss) * mss;
-			if (!in_sack && new_len < pkt_len) {
+			if (!in_sack && new_len < pkt_len)
 				new_len += mss;
-				if (new_len >= skb->len)
-					return 0;
-			}
 			pkt_len = new_len;
 		}
+
+		if (pkt_len >= skb->len && !in_sack)
+			return 0;
+
 		err = tcp_fragment(sk, skb, pkt_len, mss, GFP_ATOMIC);
 		if (err < 0)
 			return err;
@@ -2559,8 +2560,8 @@ static inline void tcp_end_cwnd_reductio
 		return;
 
 	/* Reset cwnd to ssthresh in CWR or Recovery (unless it's undone) */
-	if (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR ||
-	    (tp->undo_marker && tp->snd_ssthresh < TCP_INFINITE_SSTHRESH)) {
+	if (tp->snd_ssthresh < TCP_INFINITE_SSTHRESH &&
+	    (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR || tp->undo_marker)) {
 		tp->snd_cwnd = tp->snd_ssthresh;
 		tp->snd_cwnd_stamp = tcp_time_stamp;
 	}
@@ -3035,8 +3036,7 @@ void tcp_rearm_rto(struct sock *sk)
 			/* delta may not be positive if the socket is locked
 			 * when the retrans timer fires and is rescheduled.
 			 */
-			if (delta > 0)
-				rto = delta;
+			rto = max(delta, 1);
 		}
 		inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS, rto,
 					  TCP_RTO_MAX);
@@ -3232,7 +3232,7 @@ static int tcp_clean_rtx_queue(struct so
 			int delta;
 
 			/* Non-retransmitted hole got filled? That's reordering */
-			if (reord < prior_fackets)
+			if (reord < prior_fackets && reord <= tp->fackets_out)
 				tcp_update_reordering(sk, tp->fackets_out - reord, 0);
 
 			delta = tcp_is_fack(tp) ? pkts_acked :
@@ -5571,6 +5571,7 @@ void tcp_finish_connect(struct sock *sk,
 	struct inet_connection_sock *icsk = inet_csk(sk);
 
 	tcp_set_state(sk, TCP_ESTABLISHED);
+	icsk->icsk_ack.lrcvtime = tcp_time_stamp;
 
 	if (skb) {
 		icsk->icsk_af_ops->sk_rx_dst_set(sk, skb);
@@ -5789,7 +5790,6 @@ static int tcp_rcv_synsent_state_process
 			 * to stand against the temptation 8)     --ANK
 			 */
 			inet_csk_schedule_ack(sk);
-			icsk->icsk_ack.lrcvtime = tcp_time_stamp;
 			tcp_enter_quickack_mode(sk);
 			inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
 						  TCP_DELACK_MAX, TCP_RTO_MAX);
@@ -5916,9 +5916,15 @@ int tcp_rcv_state_process(struct sock *s
 		if (th->syn) {
 			if (th->fin)
 				goto discard;
-			if (icsk->icsk_af_ops->conn_request(sk, skb) < 0)
-				return 1;
+			/* It is possible that we process SYN packets from backlog,
+			 * so we need to make sure to disable BH right there.
+			 */
+			local_bh_disable();
+			acceptable = icsk->icsk_af_ops->conn_request(sk, skb) >= 0;
+			local_bh_enable();
 
+			if (!acceptable)
+				return 1;
 			consume_skb(skb);
 			return 0;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_ipv4.c linux-libre-4.9.52-gnu/net/ipv4/tcp_ipv4.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_ipv4.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_ipv4.c	2017-09-27 08:40:05.000000000 -0400
@@ -269,10 +269,13 @@ EXPORT_SYMBOL(tcp_v4_connect);
  */
 void tcp_v4_mtu_reduced(struct sock *sk)
 {
-	struct dst_entry *dst;
 	struct inet_sock *inet = inet_sk(sk);
-	u32 mtu = tcp_sk(sk)->mtu_info;
+	struct dst_entry *dst;
+	u32 mtu;
 
+	if ((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE))
+		return;
+	mtu = tcp_sk(sk)->mtu_info;
 	dst = inet_csk_update_pmtu(sk, mtu);
 	if (!dst)
 		return;
@@ -418,7 +421,8 @@ void tcp_v4_err(struct sk_buff *icmp_skb
 
 	switch (type) {
 	case ICMP_REDIRECT:
-		do_redirect(icmp_skb, sk);
+		if (!sock_owned_by_user(sk))
+			do_redirect(icmp_skb, sk);
 		goto out;
 	case ICMP_SOURCE_QUENCH:
 		/* Just silently ignore these. */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_lp.c linux-libre-4.9.52-gnu/net/ipv4/tcp_lp.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_lp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_lp.c	2017-09-27 08:40:05.000000000 -0400
@@ -264,13 +264,15 @@ static void tcp_lp_pkts_acked(struct soc
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct lp *lp = inet_csk_ca(sk);
+	u32 delta;
 
 	if (sample->rtt_us > 0)
 		tcp_lp_rtt_sample(sk, sample->rtt_us);
 
 	/* calc inference */
-	if (tcp_time_stamp > tp->rx_opt.rcv_tsecr)
-		lp->inference = 3 * (tcp_time_stamp - tp->rx_opt.rcv_tsecr);
+	delta = tcp_time_stamp - tp->rx_opt.rcv_tsecr;
+	if ((s32)delta > 0)
+		lp->inference = 3 * delta;
 
 	/* test if within inference */
 	if (lp->last_drop && (tcp_time_stamp - lp->last_drop < lp->inference))
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_minisocks.c linux-libre-4.9.52-gnu/net/ipv4/tcp_minisocks.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_minisocks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_minisocks.c	2017-09-27 08:40:05.000000000 -0400
@@ -466,6 +466,7 @@ struct sock *tcp_create_openreq_child(co
 		newtp->mdev_us = jiffies_to_usecs(TCP_TIMEOUT_INIT);
 		minmax_reset(&newtp->rtt_min, tcp_time_stamp, ~0U);
 		newicsk->icsk_rto = TCP_TIMEOUT_INIT;
+		newicsk->icsk_ack.lrcvtime = tcp_time_stamp;
 
 		newtp->packets_out = 0;
 		newtp->retrans_out = 0;
@@ -542,6 +543,7 @@ struct sock *tcp_create_openreq_child(co
 			newicsk->icsk_ack.last_seg_size = skb->len - newtp->tcp_header_len;
 		newtp->rx_opt.mss_clamp = req->mss;
 		tcp_ecn_openreq_child(newtp, req);
+		newtp->fastopen_req = NULL;
 		newtp->fastopen_rsk = NULL;
 		newtp->syn_data_acked = 0;
 		newtp->rack.mstamp.v64 = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_output.c linux-libre-4.9.52-gnu/net/ipv4/tcp_output.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_output.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_output.c	2017-09-27 08:40:05.000000000 -0400
@@ -1246,7 +1246,7 @@ int tcp_fragment(struct sock *sk, struct
  * eventually). The difference is that pulled data not copied, but
  * immediately discarded.
  */
-static void __pskb_trim_head(struct sk_buff *skb, int len)
+static int __pskb_trim_head(struct sk_buff *skb, int len)
 {
 	struct skb_shared_info *shinfo;
 	int i, k, eat;
@@ -1256,7 +1256,7 @@ static void __pskb_trim_head(struct sk_b
 		__skb_pull(skb, eat);
 		len -= eat;
 		if (!len)
-			return;
+			return 0;
 	}
 	eat = len;
 	k = 0;
@@ -1282,23 +1282,28 @@ static void __pskb_trim_head(struct sk_b
 	skb_reset_tail_pointer(skb);
 	skb->data_len -= len;
 	skb->len = skb->data_len;
+	return len;
 }
 
 /* Remove acked data from a packet in the transmit queue. */
 int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
 {
+	u32 delta_truesize;
+
 	if (skb_unclone(skb, GFP_ATOMIC))
 		return -ENOMEM;
 
-	__pskb_trim_head(skb, len);
+	delta_truesize = __pskb_trim_head(skb, len);
 
 	TCP_SKB_CB(skb)->seq += len;
 	skb->ip_summed = CHECKSUM_PARTIAL;
 
-	skb->truesize	     -= len;
-	sk->sk_wmem_queued   -= len;
-	sk_mem_uncharge(sk, len);
-	sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
+	if (delta_truesize) {
+		skb->truesize	   -= delta_truesize;
+		sk->sk_wmem_queued -= delta_truesize;
+		sk_mem_uncharge(sk, delta_truesize);
+		sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
+	}
 
 	/* Any change of skb->len requires recalculation of tso factor. */
 	if (tcp_skb_pcount(skb) > 1)
@@ -2436,9 +2441,11 @@ u32 __tcp_select_window(struct sock *sk)
 	int full_space = min_t(int, tp->window_clamp, allowed_space);
 	int window;
 
-	if (mss > full_space)
+	if (unlikely(mss > full_space)) {
 		mss = full_space;
-
+		if (mss <= 0)
+			return 0;
+	}
 	if (free_space < (full_space >> 1)) {
 		icsk->icsk_ack.quick = 0;
 
@@ -3337,6 +3344,9 @@ int tcp_connect(struct sock *sk)
 	struct sk_buff *buff;
 	int err;
 
+	if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
+		return -EHOSTUNREACH; /* Routing failure or similar. */
+
 	tcp_connect_init(sk);
 
 	if (unlikely(tp->repair)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_probe.c linux-libre-4.9.52-gnu/net/ipv4/tcp_probe.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_probe.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_probe.c	2017-09-27 08:40:05.000000000 -0400
@@ -117,7 +117,7 @@ static void jtcp_rcv_established(struct
 	     (fwmark > 0 && skb->mark == fwmark)) &&
 	    (full || tp->snd_cwnd != tcp_probe.lastcwnd)) {
 
-		spin_lock(&tcp_probe.lock);
+		spin_lock_bh(&tcp_probe.lock);
 		/* If log fills, just silently drop */
 		if (tcp_probe_avail() > 1) {
 			struct tcp_log *p = tcp_probe.log + tcp_probe.head;
@@ -157,7 +157,7 @@ static void jtcp_rcv_established(struct
 			tcp_probe.head = (tcp_probe.head + 1) & (bufsize - 1);
 		}
 		tcp_probe.lastcwnd = tp->snd_cwnd;
-		spin_unlock(&tcp_probe.lock);
+		spin_unlock_bh(&tcp_probe.lock);
 
 		wake_up(&tcp_probe.wait);
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/tcp_timer.c linux-libre-4.9.52-gnu/net/ipv4/tcp_timer.c
--- linux-libre-4.9-gnu/net/ipv4/tcp_timer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/tcp_timer.c	2017-09-27 08:40:05.000000000 -0400
@@ -249,7 +249,8 @@ void tcp_delack_timer_handler(struct soc
 
 	sk_mem_reclaim_partial(sk);
 
-	if (sk->sk_state == TCP_CLOSE || !(icsk->icsk_ack.pending & ICSK_ACK_TIMER))
+	if (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN)) ||
+	    !(icsk->icsk_ack.pending & ICSK_ACK_TIMER))
 		goto out;
 
 	if (time_after(icsk->icsk_ack.timeout, jiffies)) {
@@ -552,7 +553,8 @@ void tcp_write_timer_handler(struct sock
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	int event;
 
-	if (sk->sk_state == TCP_CLOSE || !icsk->icsk_pending)
+	if (((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_LISTEN)) ||
+	    !icsk->icsk_pending)
 		goto out;
 
 	if (time_after(icsk->icsk_timeout, jiffies)) {
@@ -652,7 +654,8 @@ static void tcp_keepalive_timer (unsigne
 		goto death;
 	}
 
-	if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE)
+	if (!sock_flag(sk, SOCK_KEEPOPEN) ||
+	    ((1 << sk->sk_state) & (TCPF_CLOSE | TCPF_SYN_SENT)))
 		goto out;
 
 	elapsed = keepalive_time_when(tp);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/udp.c linux-libre-4.9.52-gnu/net/ipv4/udp.c
--- linux-libre-4.9-gnu/net/ipv4/udp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/udp.c	2017-09-27 08:40:05.000000000 -0400
@@ -813,7 +813,7 @@ static int udp_send_skb(struct sk_buff *
 	if (is_udplite)  				 /*     UDP-Lite      */
 		csum = udplite_csum(skb);
 
-	else if (sk->sk_no_check_tx) {   /* UDP csum disabled */
+	else if (sk->sk_no_check_tx && !skb_is_gso(skb)) {   /* UDP csum off */
 
 		skb->ip_summed = CHECKSUM_NONE;
 		goto send;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv4/udp_offload.c linux-libre-4.9.52-gnu/net/ipv4/udp_offload.c
--- linux-libre-4.9-gnu/net/ipv4/udp_offload.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv4/udp_offload.c	2017-09-27 08:40:05.000000000 -0400
@@ -232,7 +232,7 @@ static struct sk_buff *udp4_ufo_fragment
 	if (uh->check == 0)
 		uh->check = CSUM_MANGLED_0;
 
-	skb->ip_summed = CHECKSUM_NONE;
+	skb->ip_summed = CHECKSUM_UNNECESSARY;
 
 	/* If there is no outer header we can fake a checksum offload
 	 * due to the fact that we have already done the checksum in
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/addrconf.c linux-libre-4.9.52-gnu/net/ipv6/addrconf.c
--- linux-libre-4.9-gnu/net/ipv6/addrconf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/addrconf.c	2017-09-27 08:40:05.000000000 -0400
@@ -315,9 +315,9 @@ static void addrconf_mod_rs_timer(struct
 static void addrconf_mod_dad_work(struct inet6_ifaddr *ifp,
 				   unsigned long delay)
 {
-	if (!delayed_work_pending(&ifp->dad_work))
-		in6_ifa_hold(ifp);
-	mod_delayed_work(addrconf_wq, &ifp->dad_work, delay);
+	in6_ifa_hold(ifp);
+	if (mod_delayed_work(addrconf_wq, &ifp->dad_work, delay))
+		in6_ifa_put(ifp);
 }
 
 static int snmp6_alloc_dev(struct inet6_dev *idev)
@@ -1875,15 +1875,7 @@ static void addrconf_dad_stop(struct ine
 	if (dad_failed)
 		ifp->flags |= IFA_F_DADFAILED;
 
-	if (ifp->flags&IFA_F_PERMANENT) {
-		spin_lock_bh(&ifp->lock);
-		addrconf_del_dad_work(ifp);
-		ifp->flags |= IFA_F_TENTATIVE;
-		spin_unlock_bh(&ifp->lock);
-		if (dad_failed)
-			ipv6_ifa_notify(0, ifp);
-		in6_ifa_put(ifp);
-	} else if (ifp->flags&IFA_F_TEMPORARY) {
+	if (ifp->flags&IFA_F_TEMPORARY) {
 		struct inet6_ifaddr *ifpub;
 		spin_lock_bh(&ifp->lock);
 		ifpub = ifp->ifpub;
@@ -1896,6 +1888,14 @@ static void addrconf_dad_stop(struct ine
 			spin_unlock_bh(&ifp->lock);
 		}
 		ipv6_del_addr(ifp);
+	} else if (ifp->flags&IFA_F_PERMANENT || !dad_failed) {
+		spin_lock_bh(&ifp->lock);
+		addrconf_del_dad_work(ifp);
+		ifp->flags |= IFA_F_TENTATIVE;
+		spin_unlock_bh(&ifp->lock);
+		if (dad_failed)
+			ipv6_ifa_notify(0, ifp);
+		in6_ifa_put(ifp);
 	} else {
 		ipv6_del_addr(ifp);
 	}
@@ -3253,14 +3253,24 @@ static void addrconf_gre_config(struct n
 static int fixup_permanent_addr(struct inet6_dev *idev,
 				struct inet6_ifaddr *ifp)
 {
-	if (!ifp->rt) {
-		struct rt6_info *rt;
+	/* rt6i_ref == 0 means the host route was removed from the
+	 * FIB, for example, if 'lo' device is taken down. In that
+	 * case regenerate the host route.
+	 */
+	if (!ifp->rt || !atomic_read(&ifp->rt->rt6i_ref)) {
+		struct rt6_info *rt, *prev;
 
 		rt = addrconf_dst_alloc(idev, &ifp->addr, false);
 		if (unlikely(IS_ERR(rt)))
 			return PTR_ERR(rt);
 
+		/* ifp->rt can be accessed outside of rtnl */
+		spin_lock(&ifp->lock);
+		prev = ifp->rt;
 		ifp->rt = rt;
+		spin_unlock(&ifp->lock);
+
+		ip6_rt_put(prev);
 	}
 
 	if (!(ifp->flags & IFA_F_NOPREFIXROUTE)) {
@@ -3268,7 +3278,8 @@ static int fixup_permanent_addr(struct i
 				      idev->dev, 0, 0);
 	}
 
-	addrconf_dad_start(ifp);
+	if (ifp->state == INET6_IFADDR_STATE_PREDAD)
+		addrconf_dad_start(ifp);
 
 	return 0;
 }
@@ -3305,6 +3316,7 @@ static int addrconf_notify(struct notifi
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct netdev_notifier_changeupper_info *info;
 	struct inet6_dev *idev = __in6_dev_get(dev);
+	struct net *net = dev_net(dev);
 	int run_pending = 0;
 	int err;
 
@@ -3320,7 +3332,7 @@ static int addrconf_notify(struct notifi
 	case NETDEV_CHANGEMTU:
 		/* if MTU under IPV6_MIN_MTU stop IPv6 on this interface. */
 		if (dev->mtu < IPV6_MIN_MTU) {
-			addrconf_ifdown(dev, 1);
+			addrconf_ifdown(dev, dev != net->loopback_dev);
 			break;
 		}
 
@@ -3376,9 +3388,15 @@ static int addrconf_notify(struct notifi
 			}
 
 			if (idev) {
-				if (idev->if_flags & IF_READY)
-					/* device is already configured. */
+				if (idev->if_flags & IF_READY) {
+					/* device is already configured -
+					 * but resend MLD reports, we might
+					 * have roamed and need to update
+					 * multicast snooping switches
+					 */
+					ipv6_mc_up(idev);
 					break;
+				}
 				idev->if_flags |= IF_READY;
 			}
 
@@ -3430,7 +3448,7 @@ static int addrconf_notify(struct notifi
 			 * IPV6_MIN_MTU stop IPv6 on this interface.
 			 */
 			if (dev->mtu < IPV6_MIN_MTU)
-				addrconf_ifdown(dev, 1);
+				addrconf_ifdown(dev, dev != net->loopback_dev);
 		}
 		break;
 
@@ -3481,6 +3499,7 @@ static int addrconf_notify(struct notifi
  */
 static struct notifier_block ipv6_dev_notf = {
 	.notifier_call = addrconf_notify,
+	.priority = ADDRCONF_NOTIFY_PRIORITY,
 };
 
 static void addrconf_type_change(struct net_device *dev, unsigned long event)
@@ -3602,17 +3621,22 @@ restart:
 	INIT_LIST_HEAD(&del_list);
 	list_for_each_entry_safe(ifa, tmp, &idev->addr_list, if_list) {
 		struct rt6_info *rt = NULL;
+		bool keep;
 
 		addrconf_del_dad_work(ifa);
 
+		keep = keep_addr && (ifa->flags & IFA_F_PERMANENT) &&
+			!addr_is_local(&ifa->addr);
+		if (!keep)
+			list_move(&ifa->if_list, &del_list);
+
 		write_unlock_bh(&idev->lock);
 		spin_lock_bh(&ifa->lock);
 
-		if (keep_addr && (ifa->flags & IFA_F_PERMANENT) &&
-		    !addr_is_local(&ifa->addr)) {
+		if (keep) {
 			/* set state to skip the notifier below */
 			state = INET6_IFADDR_STATE_DEAD;
-			ifa->state = 0;
+			ifa->state = INET6_IFADDR_STATE_PREDAD;
 			if (!(ifa->flags & IFA_F_NODAD))
 				ifa->flags |= IFA_F_TENTATIVE;
 
@@ -3621,8 +3645,6 @@ restart:
 		} else {
 			state = ifa->state;
 			ifa->state = INET6_IFADDR_STATE_DEAD;
-
-			list_move(&ifa->if_list, &del_list);
 		}
 
 		spin_unlock_bh(&ifa->lock);
@@ -3989,6 +4011,12 @@ static void addrconf_dad_completed(struc
 
 	if (bump_id)
 		rt_genid_bump_ipv6(dev_net(dev));
+
+	/* Make sure that a new temporary address will be created
+	 * before this temporary address becomes deprecated.
+	 */
+	if (ifp->flags & IFA_F_TEMPORARY)
+		addrconf_verify_rtnl();
 }
 
 static void addrconf_dad_run(struct inet6_dev *idev)
@@ -5415,7 +5443,7 @@ static void __ipv6_ifa_notify(int event,
 		 * our DAD process, so we don't need
 		 * to do it again
 		 */
-		if (!(ifp->rt->rt6i_node))
+		if (!rcu_access_pointer(ifp->rt->rt6i_node))
 			ip6_ins_rt(ifp->rt);
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
@@ -5515,8 +5543,7 @@ static void addrconf_disable_change(stru
 	struct net_device *dev;
 	struct inet6_dev *idev;
 
-	rcu_read_lock();
-	for_each_netdev_rcu(net, dev) {
+	for_each_netdev(net, dev) {
 		idev = __in6_dev_get(dev);
 		if (idev) {
 			int changed = (!idev->cnf.disable_ipv6) ^ (!newf);
@@ -5525,7 +5552,6 @@ static void addrconf_disable_change(stru
 				dev_disable_change(idev);
 		}
 	}
-	rcu_read_unlock();
 }
 
 static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int newf)
@@ -6252,6 +6278,8 @@ int __init addrconf_init(void)
 		goto errlo;
 	}
 
+	ip6_route_init_special_entries();
+
 	for (i = 0; i < IN6_ADDR_HSIZE; i++)
 		INIT_HLIST_HEAD(&inet6_addr_lst[i]);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/calipso.c linux-libre-4.9.52-gnu/net/ipv6/calipso.c
--- linux-libre-4.9-gnu/net/ipv6/calipso.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/calipso.c	2017-09-27 08:40:05.000000000 -0400
@@ -1319,7 +1319,7 @@ static int calipso_skbuff_setattr(struct
 	struct ipv6hdr *ip6_hdr;
 	struct ipv6_opt_hdr *hop;
 	unsigned char buf[CALIPSO_MAX_BUFFER];
-	int len_delta, new_end, pad;
+	int len_delta, new_end, pad, payload;
 	unsigned int start, end;
 
 	ip6_hdr = ipv6_hdr(skb);
@@ -1346,6 +1346,8 @@ static int calipso_skbuff_setattr(struct
 	if (ret_val < 0)
 		return ret_val;
 
+	ip6_hdr = ipv6_hdr(skb); /* Reset as skb_cow() may have moved it */
+
 	if (len_delta) {
 		if (len_delta > 0)
 			skb_push(skb, len_delta);
@@ -1355,6 +1357,8 @@ static int calipso_skbuff_setattr(struct
 			sizeof(*ip6_hdr) + start);
 		skb_reset_network_header(skb);
 		ip6_hdr = ipv6_hdr(skb);
+		payload = ntohs(ip6_hdr->payload_len);
+		ip6_hdr->payload_len = htons(payload + len_delta);
 	}
 
 	hop = (struct ipv6_opt_hdr *)(ip6_hdr + 1);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/datagram.c linux-libre-4.9.52-gnu/net/ipv6/datagram.c
--- linux-libre-4.9-gnu/net/ipv6/datagram.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/datagram.c	2017-09-27 08:40:05.000000000 -0400
@@ -166,18 +166,22 @@ int __ip6_datagram_connect(struct sock *
 	if (np->sndflow)
 		fl6_flowlabel = usin->sin6_flowinfo & IPV6_FLOWINFO_MASK;
 
-	addr_type = ipv6_addr_type(&usin->sin6_addr);
-
-	if (addr_type == IPV6_ADDR_ANY) {
+	if (ipv6_addr_any(&usin->sin6_addr)) {
 		/*
 		 *	connect to self
 		 */
-		usin->sin6_addr.s6_addr[15] = 0x01;
+		if (ipv6_addr_v4mapped(&sk->sk_v6_rcv_saddr))
+			ipv6_addr_set_v4mapped(htonl(INADDR_LOOPBACK),
+					       &usin->sin6_addr);
+		else
+			usin->sin6_addr = in6addr_loopback;
 	}
 
+	addr_type = ipv6_addr_type(&usin->sin6_addr);
+
 	daddr = &usin->sin6_addr;
 
-	if (addr_type == IPV6_ADDR_MAPPED) {
+	if (addr_type & IPV6_ADDR_MAPPED) {
 		struct sockaddr_in sin;
 
 		if (__ipv6_only_sock(sk)) {
@@ -400,9 +404,6 @@ static inline bool ipv6_datagram_support
  * At one point, excluding local errors was a quick test to identify icmp/icmp6
  * errors. This is no longer true, but the test remained, so the v6 stack,
  * unlike v4, also honors cmsg requests on all wifi and timestamp errors.
- *
- * Timestamp code paths do not initialize the fields expected by cmsg:
- * the PKTINFO fields in skb->cb[]. Fill those in here.
  */
 static bool ip6_datagram_support_cmsg(struct sk_buff *skb,
 				      struct sock_exterr_skb *serr)
@@ -414,14 +415,9 @@ static bool ip6_datagram_support_cmsg(st
 	if (serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL)
 		return false;
 
-	if (!skb->dev)
+	if (!IP6CB(skb)->iif)
 		return false;
 
-	if (skb->protocol == htons(ETH_P_IPV6))
-		IP6CB(skb)->iif = skb->dev->ifindex;
-	else
-		PKTINFO_SKB_CB(skb)->ipi_ifindex = skb->dev->ifindex;
-
 	return true;
 }
 
@@ -700,7 +696,7 @@ void ip6_datagram_recv_specific_ctl(stru
 		struct sockaddr_in6 sin6;
 		__be16 *ports = (__be16 *) skb_transport_header(skb);
 
-		if (skb_transport_offset(skb) + 4 <= skb->len) {
+		if (skb_transport_offset(skb) + 4 <= (int)skb->len) {
 			/* All current transport protocols have the port numbers in the
 			 * first four bytes of the transport header and this function is
 			 * written with this assumption in mind.
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/fib6_rules.c linux-libre-4.9.52-gnu/net/ipv6/fib6_rules.c
--- linux-libre-4.9-gnu/net/ipv6/fib6_rules.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/fib6_rules.c	2017-09-27 08:40:05.000000000 -0400
@@ -32,7 +32,6 @@ struct fib6_rule {
 struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
 				   int flags, pol_lookup_t lookup)
 {
-	struct rt6_info *rt;
 	struct fib_lookup_arg arg = {
 		.lookup_ptr = lookup,
 		.flags = FIB_LOOKUP_NOREF,
@@ -44,21 +43,11 @@ struct dst_entry *fib6_rule_lookup(struc
 	fib_rules_lookup(net->ipv6.fib6_rules_ops,
 			 flowi6_to_flowi(fl6), flags, &arg);
 
-	rt = arg.result;
-
-	if (!rt) {
-		dst_hold(&net->ipv6.ip6_null_entry->dst);
-		return &net->ipv6.ip6_null_entry->dst;
-	}
-
-	if (rt->rt6i_flags & RTF_REJECT &&
-	    rt->dst.error == -EAGAIN) {
-		ip6_rt_put(rt);
-		rt = net->ipv6.ip6_null_entry;
-		dst_hold(&rt->dst);
-	}
+	if (arg.result)
+		return arg.result;
 
-	return &rt->dst;
+	dst_hold(&net->ipv6.ip6_null_entry->dst);
+	return &net->ipv6.ip6_null_entry->dst;
 }
 
 static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
@@ -121,7 +110,8 @@ static int fib6_rule_action(struct fib_r
 			flp6->saddr = saddr;
 		}
 		err = rt->dst.error;
-		goto out;
+		if (err != -EAGAIN)
+			goto out;
 	}
 again:
 	ip6_rt_put(rt);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ila/ila_lwt.c linux-libre-4.9.52-gnu/net/ipv6/ila/ila_lwt.c
--- linux-libre-4.9-gnu/net/ipv6/ila/ila_lwt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ila/ila_lwt.c	2017-09-27 08:40:05.000000000 -0400
@@ -164,6 +164,7 @@ static const struct lwtunnel_encap_ops i
 	.fill_encap = ila_fill_encap_info,
 	.get_encap_size = ila_encap_nlsize,
 	.cmp_encap = ila_encap_cmp,
+	.owner = THIS_MODULE,
 };
 
 int ila_lwt_init(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ila/ila_xlat.c linux-libre-4.9.52-gnu/net/ipv6/ila/ila_xlat.c
--- linux-libre-4.9-gnu/net/ipv6/ila/ila_xlat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ila/ila_xlat.c	2017-09-27 08:40:05.000000000 -0400
@@ -68,6 +68,7 @@ static inline u32 ila_locator_hash(struc
 {
 	u32 *v = (u32 *)loc.v32;
 
+	__ila_hash_secret_init();
 	return jhash_2words(v[0], v[1], hashrnd);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/inet6_connection_sock.c linux-libre-4.9.52-gnu/net/ipv6/inet6_connection_sock.c
--- linux-libre-4.9-gnu/net/ipv6/inet6_connection_sock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/inet6_connection_sock.c	2017-09-27 08:40:05.000000000 -0400
@@ -173,7 +173,7 @@ int inet6_csk_xmit(struct sock *sk, stru
 	/* Restore final destination back after routing done */
 	fl6.daddr = sk->sk_v6_daddr;
 
-	res = ip6_xmit(sk, skb, &fl6, rcu_dereference(np->opt),
+	res = ip6_xmit(sk, skb, &fl6, sk->sk_mark, rcu_dereference(np->opt),
 		       np->tclass);
 	rcu_read_unlock();
 	return res;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ip6_fib.c linux-libre-4.9.52-gnu/net/ipv6/ip6_fib.c
--- linux-libre-4.9-gnu/net/ipv6/ip6_fib.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ip6_fib.c	2017-09-27 08:40:05.000000000 -0400
@@ -148,11 +148,23 @@ static struct fib6_node *node_alloc(void
 	return fn;
 }
 
-static void node_free(struct fib6_node *fn)
+static void node_free_immediate(struct fib6_node *fn)
+{
+	kmem_cache_free(fib6_node_kmem, fn);
+}
+
+static void node_free_rcu(struct rcu_head *head)
 {
+	struct fib6_node *fn = container_of(head, struct fib6_node, rcu);
+
 	kmem_cache_free(fib6_node_kmem, fn);
 }
 
+static void node_free(struct fib6_node *fn)
+{
+	call_rcu(&fn->rcu, node_free_rcu);
+}
+
 static void rt6_rcu_free(struct rt6_info *rt)
 {
 	call_rcu(&rt->dst.rcu_head, dst_rcu_free);
@@ -189,6 +201,12 @@ static void rt6_release(struct rt6_info
 	}
 }
 
+static void fib6_free_table(struct fib6_table *table)
+{
+	inetpeer_invalidate_tree(&table->tb6_peers);
+	kfree(table);
+}
+
 static void fib6_link_table(struct net *net, struct fib6_table *tb)
 {
 	unsigned int h;
@@ -289,8 +307,7 @@ struct dst_entry *fib6_rule_lookup(struc
 	struct rt6_info *rt;
 
 	rt = lookup(net, net->ipv6.fib6_main_tbl, fl6, flags);
-	if (rt->rt6i_flags & RTF_REJECT &&
-	    rt->dst.error == -EAGAIN) {
+	if (rt->dst.error == -EAGAIN) {
 		ip6_rt_put(rt);
 		rt = net->ipv6.ip6_null_entry;
 		dst_hold(&rt->dst);
@@ -590,9 +607,9 @@ insert_above:
 
 		if (!in || !ln) {
 			if (in)
-				node_free(in);
+				node_free_immediate(in);
 			if (ln)
-				node_free(ln);
+				node_free_immediate(ln);
 			return ERR_PTR(-ENOMEM);
 		}
 
@@ -772,10 +789,7 @@ static int fib6_add_rt2node(struct fib6_
 				goto next_iter;
 			}
 
-			if (iter->dst.dev == rt->dst.dev &&
-			    iter->rt6i_idev == rt->rt6i_idev &&
-			    ipv6_addr_equal(&iter->rt6i_gateway,
-					    &rt->rt6i_gateway)) {
+			if (rt6_duplicate_nexthop(iter, rt)) {
 				if (rt->rt6i_nsiblings)
 					rt->rt6i_nsiblings = 0;
 				if (!(iter->rt6i_flags & RTF_EXPIRES))
@@ -866,7 +880,7 @@ add:
 
 		rt->dst.rt6_next = iter;
 		*ins = rt;
-		rt->rt6i_node = fn;
+		rcu_assign_pointer(rt->rt6i_node, fn);
 		atomic_inc(&rt->rt6i_ref);
 		inet6_rt_notify(RTM_NEWROUTE, rt, info, nlflags);
 		info->nl_net->ipv6.rt6_stats->fib_rt_entries++;
@@ -891,7 +905,7 @@ add:
 			return err;
 
 		*ins = rt;
-		rt->rt6i_node = fn;
+		rcu_assign_pointer(rt->rt6i_node, fn);
 		rt->dst.rt6_next = iter->dst.rt6_next;
 		atomic_inc(&rt->rt6i_ref);
 		inet6_rt_notify(RTM_NEWROUTE, rt, info, NLM_F_REPLACE);
@@ -901,6 +915,8 @@ add:
 		}
 		nsiblings = iter->rt6i_nsiblings;
 		fib6_purge_rt(iter, fn, info->nl_net);
+		if (fn->rr_ptr == iter)
+			fn->rr_ptr = NULL;
 		rt6_release(iter);
 
 		if (nsiblings) {
@@ -908,9 +924,13 @@ add:
 			ins = &rt->dst.rt6_next;
 			iter = *ins;
 			while (iter) {
+				if (iter->rt6i_metric > rt->rt6i_metric)
+					break;
 				if (rt6_qualify_for_ecmp(iter)) {
 					*ins = iter->dst.rt6_next;
 					fib6_purge_rt(iter, fn, info->nl_net);
+					if (fn->rr_ptr == iter)
+						fn->rr_ptr = NULL;
 					rt6_release(iter);
 					nsiblings--;
 				} else {
@@ -999,7 +1019,7 @@ int fib6_add(struct fib6_node *root, str
 			/* Create subtree root node */
 			sfn = node_alloc();
 			if (!sfn)
-				goto st_failure;
+				goto failure;
 
 			sfn->leaf = info->nl_net->ipv6.ip6_null_entry;
 			atomic_inc(&info->nl_net->ipv6.ip6_null_entry->rt6i_ref);
@@ -1015,12 +1035,12 @@ int fib6_add(struct fib6_node *root, str
 
 			if (IS_ERR(sn)) {
 				/* If it is failed, discard just allocated
-				   root, and then (in st_failure) stale node
+				   root, and then (in failure) stale node
 				   in main tree.
 				 */
-				node_free(sfn);
+				node_free_immediate(sfn);
 				err = PTR_ERR(sn);
-				goto st_failure;
+				goto failure;
 			}
 
 			/* Now link new subtree to main tree */
@@ -1034,7 +1054,7 @@ int fib6_add(struct fib6_node *root, str
 
 			if (IS_ERR(sn)) {
 				err = PTR_ERR(sn);
-				goto st_failure;
+				goto failure;
 			}
 		}
 
@@ -1076,22 +1096,22 @@ out:
 			atomic_inc(&pn->leaf->rt6i_ref);
 		}
 #endif
-		if (!(rt->dst.flags & DST_NOCACHE))
-			dst_free(&rt->dst);
+		goto failure;
 	}
 	return err;
 
-#ifdef CONFIG_IPV6_SUBTREES
-	/* Subtree creation failed, probably main tree node
-	   is orphan. If it is, shoot it.
+failure:
+	/* fn->leaf could be NULL if fn is an intermediate node and we
+	 * failed to add the new route to it in both subtree creation
+	 * failure and fib6_add_rt2node() failure case.
+	 * In both cases, fib6_repair_tree() should be called to fix
+	 * fn->leaf.
 	 */
-st_failure:
 	if (fn && !(fn->fn_flags & (RTN_RTINFO|RTN_ROOT)))
 		fib6_repair_tree(info->nl_net, fn);
 	if (!(rt->dst.flags & DST_NOCACHE))
 		dst_free(&rt->dst);
 	return err;
-#endif
 }
 
 /*
@@ -1445,8 +1465,9 @@ static void fib6_del_route(struct fib6_n
 
 int fib6_del(struct rt6_info *rt, struct nl_info *info)
 {
+	struct fib6_node *fn = rcu_dereference_protected(rt->rt6i_node,
+				    lockdep_is_held(&rt->rt6i_table->tb6_lock));
 	struct net *net = info->nl_net;
-	struct fib6_node *fn = rt->rt6i_node;
 	struct rt6_info **rtp;
 
 #if RT6_DEBUG >= 2
@@ -1635,7 +1656,9 @@ static int fib6_clean_node(struct fib6_w
 			if (res) {
 #if RT6_DEBUG >= 2
 				pr_debug("%s: del failed: rt=%p@%p err=%d\n",
-					 __func__, rt, rt->rt6i_node, res);
+					 __func__, rt,
+					 rcu_access_pointer(rt->rt6i_node),
+					 res);
 #endif
 				continue;
 			}
@@ -1876,15 +1899,22 @@ out_timer:
 
 static void fib6_net_exit(struct net *net)
 {
+	unsigned int i;
+
 	rt6_ifdown(net, NULL);
 	del_timer_sync(&net->ipv6.ip6_fib_timer);
 
-#ifdef CONFIG_IPV6_MULTIPLE_TABLES
-	inetpeer_invalidate_tree(&net->ipv6.fib6_local_tbl->tb6_peers);
-	kfree(net->ipv6.fib6_local_tbl);
-#endif
-	inetpeer_invalidate_tree(&net->ipv6.fib6_main_tbl->tb6_peers);
-	kfree(net->ipv6.fib6_main_tbl);
+	for (i = 0; i < FIB6_TABLE_HASHSZ; i++) {
+		struct hlist_head *head = &net->ipv6.fib_table_hash[i];
+		struct hlist_node *tmp;
+		struct fib6_table *tb;
+
+		hlist_for_each_entry_safe(tb, tmp, head, tb6_hlist) {
+			hlist_del(&tb->tb6_hlist);
+			fib6_free_table(tb);
+		}
+	}
+
 	kfree(net->ipv6.fib_table_hash);
 	kfree(net->ipv6.rt6_stats);
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ip6_gre.c linux-libre-4.9.52-gnu/net/ipv6/ip6_gre.c
--- linux-libre-4.9-gnu/net/ipv6/ip6_gre.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ip6_gre.c	2017-09-27 08:40:05.000000000 -0400
@@ -367,35 +367,37 @@ static void ip6gre_tunnel_uninit(struct
 
 
 static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-		u8 type, u8 code, int offset, __be32 info)
+		       u8 type, u8 code, int offset, __be32 info)
 {
-	const struct ipv6hdr *ipv6h = (const struct ipv6hdr *)skb->data;
-	__be16 *p = (__be16 *)(skb->data + offset);
-	int grehlen = offset + 4;
+	const struct gre_base_hdr *greh;
+	const struct ipv6hdr *ipv6h;
+	int grehlen = sizeof(*greh);
 	struct ip6_tnl *t;
+	int key_off = 0;
 	__be16 flags;
+	__be32 key;
 
-	flags = p[0];
-	if (flags&(GRE_CSUM|GRE_KEY|GRE_SEQ|GRE_ROUTING|GRE_VERSION)) {
-		if (flags&(GRE_VERSION|GRE_ROUTING))
-			return;
-		if (flags&GRE_KEY) {
-			grehlen += 4;
-			if (flags&GRE_CSUM)
-				grehlen += 4;
-		}
+	if (!pskb_may_pull(skb, offset + grehlen))
+		return;
+	greh = (const struct gre_base_hdr *)(skb->data + offset);
+	flags = greh->flags;
+	if (flags & (GRE_VERSION | GRE_ROUTING))
+		return;
+	if (flags & GRE_CSUM)
+		grehlen += 4;
+	if (flags & GRE_KEY) {
+		key_off = grehlen + offset;
+		grehlen += 4;
 	}
 
-	/* If only 8 bytes returned, keyed message will be dropped here */
-	if (!pskb_may_pull(skb, grehlen))
+	if (!pskb_may_pull(skb, offset + grehlen))
 		return;
 	ipv6h = (const struct ipv6hdr *)skb->data;
-	p = (__be16 *)(skb->data + offset);
+	greh = (const struct gre_base_hdr *)(skb->data + offset);
+	key = key_off ? *(__be32 *)(skb->data + key_off) : 0;
 
 	t = ip6gre_tunnel_lookup(skb->dev, &ipv6h->daddr, &ipv6h->saddr,
-				flags & GRE_KEY ?
-				*(((__be32 *)p) + (grehlen / 4) - 1) : 0,
-				p[1]);
+				 key, greh->protocol);
 	if (!t)
 		return;
 
@@ -430,7 +432,9 @@ static void ip6gre_err(struct sk_buff *s
 		}
 		break;
 	case ICMPV6_PKT_TOOBIG:
-		mtu = be32_to_cpu(info) - offset;
+		mtu = be32_to_cpu(info) - offset - t->tun_hlen;
+		if (t->dev->type == ARPHRD_ETHER)
+			mtu -= ETH_HLEN;
 		if (mtu < IPV6_MIN_MTU)
 			mtu = IPV6_MIN_MTU;
 		t->dev->mtu = mtu;
@@ -540,11 +544,10 @@ static inline int ip6gre_xmit_ipv4(struc
 
 	memcpy(&fl6, &t->fl.u.ip6, sizeof(fl6));
 
-	dsfield = ipv4_get_dsfield(iph);
-
 	if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
-		fl6.flowlabel |= htonl((__u32)iph->tos << IPV6_TCLASS_SHIFT)
-					  & IPV6_TCLASS_MASK;
+		dsfield = ipv4_get_dsfield(iph);
+	else
+		dsfield = ip6_tclass(t->parms.flowinfo);
 	if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
 		fl6.flowi6_mark = skb->mark;
 
@@ -580,6 +583,9 @@ static inline int ip6gre_xmit_ipv6(struc
 		return -1;
 
 	offset = ip6_tnl_parse_tlv_enc_lim(skb, skb_network_header(skb));
+	/* ip6_tnl_parse_tlv_enc_lim() might have reallocated skb->head */
+	ipv6h = ipv6_hdr(skb);
+
 	if (offset > 0) {
 		struct ipv6_tlv_tnl_enc_lim *tel;
 		tel = (struct ipv6_tlv_tnl_enc_lim *)&skb_network_header(skb)[offset];
@@ -594,9 +600,11 @@ static inline int ip6gre_xmit_ipv6(struc
 
 	memcpy(&fl6, &t->fl.u.ip6, sizeof(fl6));
 
-	dsfield = ipv6_get_dsfield(ipv6h);
 	if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
-		fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK);
+		dsfield = ipv6_get_dsfield(ipv6h);
+	else
+		dsfield = ip6_tclass(t->parms.flowinfo);
+
 	if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
 		fl6.flowlabel |= ip6_flowlabel(ipv6h);
 	if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ip6mr.c linux-libre-4.9.52-gnu/net/ipv6/ip6mr.c
--- linux-libre-4.9-gnu/net/ipv6/ip6mr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ip6mr.c	2017-09-27 08:40:05.000000000 -0400
@@ -774,7 +774,8 @@ failure:
  *	Delete a VIF entry
  */
 
-static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
+static int mif6_delete(struct mr6_table *mrt, int vifi, int notify,
+		       struct list_head *head)
 {
 	struct mif_device *v;
 	struct net_device *dev;
@@ -820,7 +821,7 @@ static int mif6_delete(struct mr6_table
 					     dev->ifindex, &in6_dev->cnf);
 	}
 
-	if (v->flags & MIFF_REGISTER)
+	if ((v->flags & MIFF_REGISTER) && !notify)
 		unregister_netdevice_queue(dev, head);
 
 	dev_put(dev);
@@ -1331,7 +1332,6 @@ static int ip6mr_device_event(struct not
 	struct mr6_table *mrt;
 	struct mif_device *v;
 	int ct;
-	LIST_HEAD(list);
 
 	if (event != NETDEV_UNREGISTER)
 		return NOTIFY_DONE;
@@ -1340,10 +1340,9 @@ static int ip6mr_device_event(struct not
 		v = &mrt->vif6_table[0];
 		for (ct = 0; ct < mrt->maxvif; ct++, v++) {
 			if (v->dev == dev)
-				mif6_delete(mrt, ct, &list);
+				mif6_delete(mrt, ct, 1, NULL);
 		}
 	}
-	unregister_netdevice_many(&list);
 
 	return NOTIFY_DONE;
 }
@@ -1552,7 +1551,7 @@ static void mroute_clean_tables(struct m
 	for (i = 0; i < mrt->maxvif; i++) {
 		if (!all && (mrt->vif6_table[i].flags & VIFF_STATIC))
 			continue;
-		mif6_delete(mrt, i, &list);
+		mif6_delete(mrt, i, 0, &list);
 	}
 	unregister_netdevice_many(&list);
 
@@ -1706,7 +1705,7 @@ int ip6_mroute_setsockopt(struct sock *s
 		if (copy_from_user(&mifi, optval, sizeof(mifi_t)))
 			return -EFAULT;
 		rtnl_lock();
-		ret = mif6_delete(mrt, mifi, NULL);
+		ret = mif6_delete(mrt, mifi, 0, NULL);
 		rtnl_unlock();
 		return ret;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ip6_offload.c linux-libre-4.9.52-gnu/net/ipv6/ip6_offload.c
--- linux-libre-4.9-gnu/net/ipv6/ip6_offload.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ip6_offload.c	2017-09-27 08:40:05.000000000 -0400
@@ -63,7 +63,6 @@ static struct sk_buff *ipv6_gso_segment(
 	const struct net_offload *ops;
 	int proto;
 	struct frag_hdr *fptr;
-	unsigned int unfrag_ip6hlen;
 	unsigned int payload_len;
 	u8 *prevhdr;
 	int offset = 0;
@@ -116,8 +115,12 @@ static struct sk_buff *ipv6_gso_segment(
 		skb->network_header = (u8 *)ipv6h - skb->head;
 
 		if (udpfrag) {
-			unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
-			fptr = (struct frag_hdr *)((u8 *)ipv6h + unfrag_ip6hlen);
+			int err = ip6_find_1stfragopt(skb, &prevhdr);
+			if (err < 0) {
+				kfree_skb_list(segs);
+				return ERR_PTR(err);
+			}
+			fptr = (struct frag_hdr *)((u8 *)ipv6h + err);
 			fptr->frag_off = htons(offset);
 			if (skb->next)
 				fptr->frag_off |= htons(IP6_MF);
@@ -191,6 +194,7 @@ static struct sk_buff **ipv6_gro_receive
 	ops = rcu_dereference(inet6_offloads[proto]);
 	if (!ops || !ops->callbacks.gro_receive) {
 		__pskb_pull(skb, skb_gro_offset(skb));
+		skb_gro_frag0_invalidate(skb);
 		proto = ipv6_gso_pull_exthdrs(skb, proto);
 		skb_gro_pull(skb, -skb_transport_offset(skb));
 		skb_reset_transport_header(skb);
@@ -293,8 +297,10 @@ static int ipv6_gro_complete(struct sk_b
 	struct ipv6hdr *iph = (struct ipv6hdr *)(skb->data + nhoff);
 	int err = -ENOSYS;
 
-	if (skb->encapsulation)
+	if (skb->encapsulation) {
+		skb_set_inner_protocol(skb, cpu_to_be16(ETH_P_IPV6));
 		skb_set_inner_network_header(skb, nhoff);
+	}
 
 	iph->payload_len = htons(skb->len - nhoff - sizeof(*iph));
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ip6_output.c linux-libre-4.9.52-gnu/net/ipv6/ip6_output.c
--- linux-libre-4.9-gnu/net/ipv6/ip6_output.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ip6_output.c	2017-09-27 08:40:05.000000000 -0400
@@ -163,7 +163,7 @@ int ip6_output(struct net *net, struct s
  * which are using proper atomic operations or spinlocks.
  */
 int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
-	     struct ipv6_txoptions *opt, int tclass)
+	     __u32 mark, struct ipv6_txoptions *opt, int tclass)
 {
 	struct net *net = sock_net(sk);
 	const struct ipv6_pinfo *np = inet6_sk(sk);
@@ -230,7 +230,7 @@ int ip6_xmit(const struct sock *sk, stru
 
 	skb->protocol = htons(ETH_P_IPV6);
 	skb->priority = sk->sk_priority;
-	skb->mark = sk->sk_mark;
+	skb->mark = mark;
 
 	mtu = dst_mtu(dst);
 	if ((skb->len <= mtu) || skb->ignore_df || skb_is_gso(skb)) {
@@ -586,7 +586,10 @@ int ip6_fragment(struct net *net, struct
 	int ptr, offset = 0, err = 0;
 	u8 *prevhdr, nexthdr = 0;
 
-	hlen = ip6_find_1stfragopt(skb, &prevhdr);
+	err = ip6_find_1stfragopt(skb, &prevhdr);
+	if (err < 0)
+		goto fail;
+	hlen = err;
 	nexthdr = *prevhdr;
 
 	mtu = ip6_skb_dst_mtu(skb);
@@ -659,8 +662,6 @@ int ip6_fragment(struct net *net, struct
 		*prevhdr = NEXTHDR_FRAGMENT;
 		tmp_hdr = kmemdup(skb_network_header(skb), hlen, GFP_ATOMIC);
 		if (!tmp_hdr) {
-			IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
-				      IPSTATS_MIB_FRAGFAILS);
 			err = -ENOMEM;
 			goto fail;
 		}
@@ -757,13 +758,14 @@ slow_path:
 	 *	Fragment the datagram.
 	 */
 
-	*prevhdr = NEXTHDR_FRAGMENT;
 	troom = rt->dst.dev->needed_tailroom;
 
 	/*
 	 *	Keep copying data until we run out.
 	 */
 	while (left > 0)	{
+		u8 *fragnexthdr_offset;
+
 		len = left;
 		/* IF: it doesn't fit, use 'mtu' - the data space left */
 		if (len > mtu)
@@ -778,8 +780,6 @@ slow_path:
 		frag = alloc_skb(len + hlen + sizeof(struct frag_hdr) +
 				 hroom + troom, GFP_ATOMIC);
 		if (!frag) {
-			IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
-				      IPSTATS_MIB_FRAGFAILS);
 			err = -ENOMEM;
 			goto fail;
 		}
@@ -808,6 +808,10 @@ slow_path:
 		 */
 		skb_copy_from_linear_data(skb, skb_network_header(frag), hlen);
 
+		fragnexthdr_offset = skb_network_header(frag);
+		fragnexthdr_offset += prevhdr - skb_network_header(skb);
+		*fragnexthdr_offset = NEXTHDR_FRAGMENT;
+
 		/*
 		 *	Build fragment header.
 		 */
@@ -1011,6 +1015,11 @@ static int ip6_dst_lookup_tail(struct ne
 		}
 	}
 #endif
+	if (ipv6_addr_v4mapped(&fl6->saddr) &&
+	    !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr))) {
+		err = -EAFNOSUPPORT;
+		goto out_err_release;
+	}
 
 	return 0;
 
@@ -1363,11 +1372,12 @@ emsgsize:
 	 */
 
 	cork->length += length;
-	if (((length > mtu) ||
-	     (skb && skb_is_gso(skb))) &&
+	if ((skb && skb_is_gso(skb)) ||
+	    (((length + fragheaderlen) > mtu) &&
+	    (skb_queue_len(queue) <= 1) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len &&
-	    (sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk)) {
+	    (sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk))) {
 		err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
 					  hh_len, fragheaderlen, exthdrlen,
 					  transhdrlen, mtu, flags, fl6);
@@ -1439,6 +1449,11 @@ alloc_new_skb:
 			 */
 			alloclen += sizeof(struct frag_hdr);
 
+			copy = datalen - transhdrlen - fraggap;
+			if (copy < 0) {
+				err = -EINVAL;
+				goto error;
+			}
 			if (transhdrlen) {
 				skb = sock_alloc_send_skb(sk,
 						alloclen + hh_len,
@@ -1488,13 +1503,9 @@ alloc_new_skb:
 				data += fraggap;
 				pskb_trim_unique(skb_prev, maxfraglen);
 			}
-			copy = datalen - transhdrlen - fraggap;
-
-			if (copy < 0) {
-				err = -EINVAL;
-				kfree_skb(skb);
-				goto error;
-			} else if (copy > 0 && getfrag(from, data + transhdrlen, offset, copy, fraggap, skb) < 0) {
+			if (copy > 0 &&
+			    getfrag(from, data + transhdrlen, offset,
+				    copy, fraggap, skb) < 0) {
 				err = -EFAULT;
 				kfree_skb(skb);
 				goto error;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ip6_tunnel.c linux-libre-4.9.52-gnu/net/ipv6/ip6_tunnel.c
--- linux-libre-4.9-gnu/net/ipv6/ip6_tunnel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ip6_tunnel.c	2017-09-27 08:40:05.000000000 -0400
@@ -400,18 +400,19 @@ ip6_tnl_dev_uninit(struct net_device *de
 
 __u16 ip6_tnl_parse_tlv_enc_lim(struct sk_buff *skb, __u8 *raw)
 {
-	const struct ipv6hdr *ipv6h = (const struct ipv6hdr *) raw;
-	__u8 nexthdr = ipv6h->nexthdr;
-	__u16 off = sizeof(*ipv6h);
+	const struct ipv6hdr *ipv6h = (const struct ipv6hdr *)raw;
+	unsigned int nhoff = raw - skb->data;
+	unsigned int off = nhoff + sizeof(*ipv6h);
+	u8 next, nexthdr = ipv6h->nexthdr;
 
 	while (ipv6_ext_hdr(nexthdr) && nexthdr != NEXTHDR_NONE) {
-		__u16 optlen = 0;
 		struct ipv6_opt_hdr *hdr;
-		if (raw + off + sizeof(*hdr) > skb->data &&
-		    !pskb_may_pull(skb, raw - skb->data + off + sizeof (*hdr)))
+		u16 optlen;
+
+		if (!pskb_may_pull(skb, off + sizeof(*hdr)))
 			break;
 
-		hdr = (struct ipv6_opt_hdr *) (raw + off);
+		hdr = (struct ipv6_opt_hdr *)(skb->data + off);
 		if (nexthdr == NEXTHDR_FRAGMENT) {
 			struct frag_hdr *frag_hdr = (struct frag_hdr *) hdr;
 			if (frag_hdr->frag_off)
@@ -422,20 +423,29 @@ __u16 ip6_tnl_parse_tlv_enc_lim(struct s
 		} else {
 			optlen = ipv6_optlen(hdr);
 		}
+		/* cache hdr->nexthdr, since pskb_may_pull() might
+		 * invalidate hdr
+		 */
+		next = hdr->nexthdr;
 		if (nexthdr == NEXTHDR_DEST) {
-			__u16 i = off + 2;
+			u16 i = 2;
+
+			/* Remember : hdr is no longer valid at this point. */
+			if (!pskb_may_pull(skb, off + optlen))
+				break;
+
 			while (1) {
 				struct ipv6_tlv_tnl_enc_lim *tel;
 
 				/* No more room for encapsulation limit */
-				if (i + sizeof (*tel) > off + optlen)
+				if (i + sizeof(*tel) > optlen)
 					break;
 
-				tel = (struct ipv6_tlv_tnl_enc_lim *) &raw[i];
+				tel = (struct ipv6_tlv_tnl_enc_lim *)(skb->data + off + i);
 				/* return index of option if found and valid */
 				if (tel->type == IPV6_TLV_TNL_ENCAP_LIMIT &&
 				    tel->length == 1)
-					return i;
+					return i + off - nhoff;
 				/* else jump to next option */
 				if (tel->type)
 					i += tel->length + 2;
@@ -443,7 +453,7 @@ __u16 ip6_tnl_parse_tlv_enc_lim(struct s
 					i++;
 			}
 		}
-		nexthdr = hdr->nexthdr;
+		nexthdr = next;
 		off += optlen;
 	}
 	return 0;
@@ -1027,7 +1037,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, st
 	struct ip6_tnl *t = netdev_priv(dev);
 	struct net *net = t->net;
 	struct net_device_stats *stats = &t->dev->stats;
-	struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+	struct ipv6hdr *ipv6h;
 	struct ipv6_tel_txoption opt;
 	struct dst_entry *dst = NULL, *ndst = NULL;
 	struct net_device *tdev;
@@ -1047,26 +1057,28 @@ int ip6_tnl_xmit(struct sk_buff *skb, st
 
 	/* NBMA tunnel */
 	if (ipv6_addr_any(&t->parms.raddr)) {
-		struct in6_addr *addr6;
-		struct neighbour *neigh;
-		int addr_type;
+		if (skb->protocol == htons(ETH_P_IPV6)) {
+			struct in6_addr *addr6;
+			struct neighbour *neigh;
+			int addr_type;
 
-		if (!skb_dst(skb))
-			goto tx_err_link_failure;
+			if (!skb_dst(skb))
+				goto tx_err_link_failure;
 
-		neigh = dst_neigh_lookup(skb_dst(skb),
-					 &ipv6_hdr(skb)->daddr);
-		if (!neigh)
-			goto tx_err_link_failure;
+			neigh = dst_neigh_lookup(skb_dst(skb),
+						 &ipv6_hdr(skb)->daddr);
+			if (!neigh)
+				goto tx_err_link_failure;
 
-		addr6 = (struct in6_addr *)&neigh->primary_key;
-		addr_type = ipv6_addr_type(addr6);
+			addr6 = (struct in6_addr *)&neigh->primary_key;
+			addr_type = ipv6_addr_type(addr6);
 
-		if (addr_type == IPV6_ADDR_ANY)
-			addr6 = &ipv6_hdr(skb)->daddr;
+			if (addr_type == IPV6_ADDR_ANY)
+				addr6 = &ipv6_hdr(skb)->daddr;
 
-		memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
-		neigh_release(neigh);
+			memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
+			neigh_release(neigh);
+		}
 	} else if (!(t->parms.flags &
 		     (IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) {
 		/* enable the cache only only if the routing decision does
@@ -1108,7 +1120,7 @@ route_lookup:
 				     t->parms.name);
 		goto tx_err_dst_release;
 	}
-	mtu = dst_mtu(dst) - psh_hlen;
+	mtu = dst_mtu(dst) - psh_hlen - t->tun_hlen;
 	if (encap_limit >= 0) {
 		max_headroom += 8;
 		mtu -= 8;
@@ -1117,7 +1129,7 @@ route_lookup:
 		mtu = IPV6_MIN_MTU;
 	if (skb_dst(skb) && !t->parms.collect_md)
 		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
-	if (skb->len > mtu && !skb_is_gso(skb)) {
+	if (skb->len - t->tun_hlen > mtu && !skb_is_gso(skb)) {
 		*pmtu = mtu;
 		err = -EMSGSIZE;
 		goto tx_err_dst_release;
@@ -1184,7 +1196,7 @@ route_lookup:
 	skb_push(skb, sizeof(struct ipv6hdr));
 	skb_reset_network_header(skb);
 	ipv6h = ipv6_hdr(skb);
-	ip6_flow_hdr(ipv6h, INET_ECN_encapsulate(0, dsfield),
+	ip6_flow_hdr(ipv6h, dsfield,
 		     ip6_make_flowlabel(net, skb, fl6->flowlabel, true, fl6));
 	ipv6h->hop_limit = hop_limit;
 	ipv6h->nexthdr = proto;
@@ -1219,8 +1231,6 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, str
 	if (tproto != IPPROTO_IPIP && tproto != 0)
 		return -1;
 
-	dsfield = ipv4_get_dsfield(iph);
-
 	if (t->parms.collect_md) {
 		struct ip_tunnel_info *tun_info;
 		const struct ip_tunnel_key *key;
@@ -1234,6 +1244,7 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, str
 		fl6.flowi6_proto = IPPROTO_IPIP;
 		fl6.daddr = key->u.ipv6.dst;
 		fl6.flowlabel = key->label;
+		dsfield = ip6_tclass(key->label);
 	} else {
 		if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
 			encap_limit = t->parms.encap_limit;
@@ -1242,8 +1253,9 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, str
 		fl6.flowi6_proto = IPPROTO_IPIP;
 
 		if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
-			fl6.flowlabel |= htonl((__u32)iph->tos << IPV6_TCLASS_SHIFT)
-					 & IPV6_TCLASS_MASK;
+			dsfield = ipv4_get_dsfield(iph);
+		else
+			dsfield = ip6_tclass(t->parms.flowinfo);
 		if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
 			fl6.flowi6_mark = skb->mark;
 	}
@@ -1251,6 +1263,8 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, str
 	if (iptunnel_handle_offloads(skb, SKB_GSO_IPXIP6))
 		return -1;
 
+	dsfield = INET_ECN_encapsulate(dsfield, ipv4_get_dsfield(iph));
+
 	skb_set_inner_ipproto(skb, IPPROTO_IPIP);
 
 	err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
@@ -1284,8 +1298,6 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, str
 	    ip6_tnl_addr_conflict(t, ipv6h))
 		return -1;
 
-	dsfield = ipv6_get_dsfield(ipv6h);
-
 	if (t->parms.collect_md) {
 		struct ip_tunnel_info *tun_info;
 		const struct ip_tunnel_key *key;
@@ -1299,8 +1311,11 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, str
 		fl6.flowi6_proto = IPPROTO_IPV6;
 		fl6.daddr = key->u.ipv6.dst;
 		fl6.flowlabel = key->label;
+		dsfield = ip6_tclass(key->label);
 	} else {
 		offset = ip6_tnl_parse_tlv_enc_lim(skb, skb_network_header(skb));
+		/* ip6_tnl_parse_tlv_enc_lim() might have reallocated skb->head */
+		ipv6h = ipv6_hdr(skb);
 		if (offset > 0) {
 			struct ipv6_tlv_tnl_enc_lim *tel;
 
@@ -1319,7 +1334,9 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, str
 		fl6.flowi6_proto = IPPROTO_IPV6;
 
 		if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
-			fl6.flowlabel |= (*(__be32 *)ipv6h & IPV6_TCLASS_MASK);
+			dsfield = ipv6_get_dsfield(ipv6h);
+		else
+			dsfield = ip6_tclass(t->parms.flowinfo);
 		if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
 			fl6.flowlabel |= ip6_flowlabel(ipv6h);
 		if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
@@ -1329,6 +1346,8 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, str
 	if (iptunnel_handle_offloads(skb, SKB_GSO_IPXIP6))
 		return -1;
 
+	dsfield = INET_ECN_encapsulate(dsfield, ipv6_get_dsfield(ipv6h));
+
 	skb_set_inner_ipproto(skb, IPPROTO_IPV6);
 
 	err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ip6_vti.c linux-libre-4.9.52-gnu/net/ipv6/ip6_vti.c
--- linux-libre-4.9-gnu/net/ipv6/ip6_vti.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ip6_vti.c	2017-09-27 08:40:05.000000000 -0400
@@ -691,6 +691,10 @@ vti6_parm_to_user(struct ip6_tnl_parm2 *
 	u->link = p->link;
 	u->i_key = p->i_key;
 	u->o_key = p->o_key;
+	if (u->i_key)
+		u->i_flags |= GRE_KEY;
+	if (u->o_key)
+		u->o_flags |= GRE_KEY;
 	u->proto = p->proto;
 
 	memcpy(u->name, p->name, sizeof(u->name));
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/mcast.c linux-libre-4.9.52-gnu/net/ipv6/mcast.c
--- linux-libre-4.9-gnu/net/ipv6/mcast.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/mcast.c	2017-09-27 08:40:05.000000000 -0400
@@ -81,7 +81,7 @@ static void mld_gq_timer_expire(unsigned
 static void mld_ifc_timer_expire(unsigned long data);
 static void mld_ifc_event(struct inet6_dev *idev);
 static void mld_add_delrec(struct inet6_dev *idev, struct ifmcaddr6 *pmc);
-static void mld_del_delrec(struct inet6_dev *idev, const struct in6_addr *addr);
+static void mld_del_delrec(struct inet6_dev *idev, struct ifmcaddr6 *pmc);
 static void mld_clear_delrec(struct inet6_dev *idev);
 static bool mld_in_v1_mode(const struct inet6_dev *idev);
 static int sf_setstate(struct ifmcaddr6 *pmc);
@@ -692,9 +692,9 @@ static void igmp6_group_dropped(struct i
 			dev_mc_del(dev, buf);
 	}
 
-	if (mc->mca_flags & MAF_NOREPORT)
-		goto done;
 	spin_unlock_bh(&mc->mca_lock);
+	if (mc->mca_flags & MAF_NOREPORT)
+		return;
 
 	if (!mc->idev->dead)
 		igmp6_leave_group(mc);
@@ -702,8 +702,6 @@ static void igmp6_group_dropped(struct i
 	spin_lock_bh(&mc->mca_lock);
 	if (del_timer(&mc->mca_timer))
 		atomic_dec(&mc->mca_refcnt);
-done:
-	ip6_mc_clear_src(mc);
 	spin_unlock_bh(&mc->mca_lock);
 }
 
@@ -748,10 +746,11 @@ static void mld_add_delrec(struct inet6_
 	spin_unlock_bh(&idev->mc_lock);
 }
 
-static void mld_del_delrec(struct inet6_dev *idev, const struct in6_addr *pmca)
+static void mld_del_delrec(struct inet6_dev *idev, struct ifmcaddr6 *im)
 {
 	struct ifmcaddr6 *pmc, *pmc_prev;
-	struct ip6_sf_list *psf, *psf_next;
+	struct ip6_sf_list *psf;
+	struct in6_addr *pmca = &im->mca_addr;
 
 	spin_lock_bh(&idev->mc_lock);
 	pmc_prev = NULL;
@@ -768,14 +767,21 @@ static void mld_del_delrec(struct inet6_
 	}
 	spin_unlock_bh(&idev->mc_lock);
 
+	spin_lock_bh(&im->mca_lock);
 	if (pmc) {
-		for (psf = pmc->mca_tomb; psf; psf = psf_next) {
-			psf_next = psf->sf_next;
-			kfree(psf);
+		im->idev = pmc->idev;
+		im->mca_crcount = idev->mc_qrv;
+		im->mca_sfmode = pmc->mca_sfmode;
+		if (pmc->mca_sfmode == MCAST_INCLUDE) {
+			im->mca_tomb = pmc->mca_tomb;
+			im->mca_sources = pmc->mca_sources;
+			for (psf = im->mca_sources; psf; psf = psf->sf_next)
+				psf->sf_crcount = im->mca_crcount;
 		}
 		in6_dev_put(pmc->idev);
 		kfree(pmc);
 	}
+	spin_unlock_bh(&im->mca_lock);
 }
 
 static void mld_clear_delrec(struct inet6_dev *idev)
@@ -904,7 +910,7 @@ int ipv6_dev_mc_inc(struct net_device *d
 	mca_get(mc);
 	write_unlock_bh(&idev->lock);
 
-	mld_del_delrec(idev, &mc->mca_addr);
+	mld_del_delrec(idev, mc);
 	igmp6_group_added(mc);
 	ma_put(mc);
 	return 0;
@@ -927,6 +933,7 @@ int __ipv6_dev_mc_dec(struct inet6_dev *
 				write_unlock_bh(&idev->lock);
 
 				igmp6_group_dropped(ma);
+				ip6_mc_clear_src(ma);
 
 				ma_put(ma);
 				return 0;
@@ -2501,15 +2508,17 @@ void ipv6_mc_down(struct inet6_dev *idev
 	/* Withdraw multicast list */
 
 	read_lock_bh(&idev->lock);
-	mld_ifc_stop_timer(idev);
-	mld_gq_stop_timer(idev);
-	mld_dad_stop_timer(idev);
 
 	for (i = idev->mc_list; i; i = i->next)
 		igmp6_group_dropped(i);
-	read_unlock_bh(&idev->lock);
 
-	mld_clear_delrec(idev);
+	/* Should stop timer after group drop. or we will
+	 * start timer again in mld_ifc_event()
+	 */
+	mld_ifc_stop_timer(idev);
+	mld_gq_stop_timer(idev);
+	mld_dad_stop_timer(idev);
+	read_unlock_bh(&idev->lock);
 }
 
 static void ipv6_mc_reset(struct inet6_dev *idev)
@@ -2531,8 +2540,10 @@ void ipv6_mc_up(struct inet6_dev *idev)
 
 	read_lock_bh(&idev->lock);
 	ipv6_mc_reset(idev);
-	for (i = idev->mc_list; i; i = i->next)
+	for (i = idev->mc_list; i; i = i->next) {
+		mld_del_delrec(idev, i);
 		igmp6_group_added(i);
+	}
 	read_unlock_bh(&idev->lock);
 }
 
@@ -2565,6 +2576,7 @@ void ipv6_mc_destroy_dev(struct inet6_de
 
 	/* Deactivate timers */
 	ipv6_mc_down(idev);
+	mld_clear_delrec(idev);
 
 	/* Delete all-nodes address. */
 	/* We cannot call ipv6_dev_mc_dec() directly, our caller in
@@ -2579,11 +2591,9 @@ void ipv6_mc_destroy_dev(struct inet6_de
 	write_lock_bh(&idev->lock);
 	while ((i = idev->mc_list) != NULL) {
 		idev->mc_list = i->next;
-		write_unlock_bh(&idev->lock);
 
-		igmp6_group_dropped(i);
+		write_unlock_bh(&idev->lock);
 		ma_put(i);
-
 		write_lock_bh(&idev->lock);
 	}
 	write_unlock_bh(&idev->lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c linux-libre-4.9.52-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c
--- linux-libre-4.9-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/netfilter/nf_conntrack_reasm.c	2017-09-27 08:40:05.000000000 -0400
@@ -589,6 +589,7 @@ int nf_ct_frag6_gather(struct net *net,
 	hdr = ipv6_hdr(skb);
 	fhdr = (struct frag_hdr *)skb_transport_header(skb);
 
+	skb_orphan(skb);
 	fq = fq_find(net, fhdr->identification, user, &hdr->saddr, &hdr->daddr,
 		     skb->dev ? skb->dev->ifindex : 0, ip6_frag_ecn(hdr));
 	if (fq == NULL) {
@@ -621,18 +622,12 @@ EXPORT_SYMBOL_GPL(nf_ct_frag6_gather);
 
 static int nf_ct_net_init(struct net *net)
 {
-	int res;
-
 	net->nf_frag.frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
 	net->nf_frag.frags.low_thresh = IPV6_FRAG_LOW_THRESH;
 	net->nf_frag.frags.timeout = IPV6_FRAG_TIMEOUT;
-	res = inet_frags_init_net(&net->nf_frag.frags);
-	if (res)
-		return res;
-	res = nf_ct_frag6_sysctl_register(net);
-	if (res)
-		inet_frags_uninit_net(&net->nf_frag.frags);
-	return res;
+	inet_frags_init_net(&net->nf_frag.frags);
+
+	return nf_ct_frag6_sysctl_register(net);
 }
 
 static void nf_ct_net_exit(struct net *net)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/netfilter/nf_reject_ipv6.c linux-libre-4.9.52-gnu/net/ipv6/netfilter/nf_reject_ipv6.c
--- linux-libre-4.9-gnu/net/ipv6/netfilter/nf_reject_ipv6.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/netfilter/nf_reject_ipv6.c	2017-09-27 08:40:05.000000000 -0400
@@ -157,6 +157,7 @@ void nf_send_reset6(struct net *net, str
 	fl6.fl6_sport = otcph->dest;
 	fl6.fl6_dport = otcph->source;
 	fl6.flowi6_oif = l3mdev_master_ifindex(skb_dst(oldskb)->dev);
+	fl6.flowi6_mark = IP6_REPLY_MARK(net, oldskb->mark);
 	security_skb_classify_flow(oldskb, flowi6_to_flowi(&fl6));
 	dst = ip6_route_output(net, NULL, &fl6);
 	if (dst->error) {
@@ -180,6 +181,8 @@ void nf_send_reset6(struct net *net, str
 
 	skb_dst_set(nskb, dst);
 
+	nskb->mark = fl6.flowi6_mark;
+
 	skb_reserve(nskb, hh_len + dst->header_len);
 	ip6h = nf_reject_ip6hdr_put(nskb, oldskb, IPPROTO_TCP,
 				    ip6_dst_hoplimit(dst));
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/output_core.c linux-libre-4.9.52-gnu/net/ipv6/output_core.c
--- linux-libre-4.9-gnu/net/ipv6/output_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/output_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -78,15 +78,14 @@ EXPORT_SYMBOL(ipv6_select_ident);
 
 int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 {
-	u16 offset = sizeof(struct ipv6hdr);
-	struct ipv6_opt_hdr *exthdr =
-				(struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
+	unsigned int offset = sizeof(struct ipv6hdr);
 	unsigned int packet_len = skb_tail_pointer(skb) -
 		skb_network_header(skb);
 	int found_rhdr = 0;
 	*nexthdr = &ipv6_hdr(skb)->nexthdr;
 
-	while (offset + 1 <= packet_len) {
+	while (offset <= packet_len) {
+		struct ipv6_opt_hdr *exthdr;
 
 		switch (**nexthdr) {
 
@@ -107,13 +106,18 @@ int ip6_find_1stfragopt(struct sk_buff *
 			return offset;
 		}
 
-		offset += ipv6_optlen(exthdr);
-		*nexthdr = &exthdr->nexthdr;
+		if (offset + sizeof(struct ipv6_opt_hdr) > packet_len)
+			return -EINVAL;
+
 		exthdr = (struct ipv6_opt_hdr *)(skb_network_header(skb) +
 						 offset);
+		offset += ipv6_optlen(exthdr);
+		if (offset > IPV6_MAXPLEN)
+			return -EINVAL;
+		*nexthdr = &exthdr->nexthdr;
 	}
 
-	return offset;
+	return -EINVAL;
 }
 EXPORT_SYMBOL(ip6_find_1stfragopt);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/ping.c linux-libre-4.9.52-gnu/net/ipv6/ping.c
--- linux-libre-4.9-gnu/net/ipv6/ping.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/ping.c	2017-09-27 08:40:05.000000000 -0400
@@ -198,7 +198,7 @@ static struct inet_protosw pingv6_protos
 	.type =      SOCK_DGRAM,
 	.protocol =  IPPROTO_ICMPV6,
 	.prot =      &pingv6_prot,
-	.ops =       &inet6_dgram_ops,
+	.ops =       &inet6_sockraw_ops,
 	.flags =     INET_PROTOSW_REUSE,
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/proc.c linux-libre-4.9.52-gnu/net/ipv6/proc.c
--- linux-libre-4.9-gnu/net/ipv6/proc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/proc.c	2017-09-27 08:40:05.000000000 -0400
@@ -219,7 +219,7 @@ static void snmp6_seq_show_item64(struct
 	u64 buff64[SNMP_MIB_MAX];
 	int i;
 
-	memset(buff64, 0, sizeof(unsigned long) * SNMP_MIB_MAX);
+	memset(buff64, 0, sizeof(u64) * SNMP_MIB_MAX);
 
 	snmp_get_cpu_field64_batch(buff64, itemlist, mib, syncpoff);
 	for (i = 0; itemlist[i].name; i++)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/raw.c linux-libre-4.9.52-gnu/net/ipv6/raw.c
--- linux-libre-4.9-gnu/net/ipv6/raw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/raw.c	2017-09-27 08:40:05.000000000 -0400
@@ -589,7 +589,11 @@ static int rawv6_push_pending_frames(str
 	}
 
 	offset += skb_transport_offset(skb);
-	BUG_ON(skb_copy_bits(skb, offset, &csum, 2));
+	err = skb_copy_bits(skb, offset, &csum, 2);
+	if (err < 0) {
+		ip6_flush_pending_frames(sk);
+		goto out;
+	}
 
 	/* in case cksum was not initialized */
 	if (unlikely(csum))
@@ -626,6 +630,8 @@ static int rawv6_send_hdrinc(struct sock
 		ipv6_local_error(sk, EMSGSIZE, fl6, rt->dst.dev->mtu);
 		return -EMSGSIZE;
 	}
+	if (length < sizeof(struct ipv6hdr))
+		return -EINVAL;
 	if (flags&MSG_PROBE)
 		goto out;
 
@@ -1167,8 +1173,7 @@ static int rawv6_ioctl(struct sock *sk,
 		spin_lock_bh(&sk->sk_receive_queue.lock);
 		skb = skb_peek(&sk->sk_receive_queue);
 		if (skb)
-			amount = skb_tail_pointer(skb) -
-				skb_transport_header(skb);
+			amount = skb->len;
 		spin_unlock_bh(&sk->sk_receive_queue.lock);
 		return put_user(amount, (int __user *)arg);
 	}
@@ -1325,7 +1330,7 @@ void raw6_proc_exit(void)
 #endif	/* CONFIG_PROC_FS */
 
 /* Same as inet6_dgram_ops, sans udp_poll.  */
-static const struct proto_ops inet6_sockraw_ops = {
+const struct proto_ops inet6_sockraw_ops = {
 	.family		   = PF_INET6,
 	.owner		   = THIS_MODULE,
 	.release	   = inet6_release,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/reassembly.c linux-libre-4.9.52-gnu/net/ipv6/reassembly.c
--- linux-libre-4.9-gnu/net/ipv6/reassembly.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/reassembly.c	2017-09-27 08:40:05.000000000 -0400
@@ -709,19 +709,13 @@ static void ip6_frags_sysctl_unregister(
 
 static int __net_init ipv6_frags_init_net(struct net *net)
 {
-	int res;
-
 	net->ipv6.frags.high_thresh = IPV6_FRAG_HIGH_THRESH;
 	net->ipv6.frags.low_thresh = IPV6_FRAG_LOW_THRESH;
 	net->ipv6.frags.timeout = IPV6_FRAG_TIMEOUT;
 
-	res = inet_frags_init_net(&net->ipv6.frags);
-	if (res)
-		return res;
-	res = ip6_frags_ns_sysctl_register(net);
-	if (res)
-		inet_frags_uninit_net(&net->ipv6.frags);
-	return res;
+	inet_frags_init_net(&net->ipv6.frags);
+
+	return ip6_frags_ns_sysctl_register(net);
 }
 
 static void __net_exit ipv6_frags_exit_net(struct net *net)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/route.c linux-libre-4.9.52-gnu/net/ipv6/route.c
--- linux-libre-4.9-gnu/net/ipv6/route.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/route.c	2017-09-27 08:40:05.000000000 -0400
@@ -1267,7 +1267,9 @@ static void rt6_dst_from_metrics_check(s
 
 static struct dst_entry *rt6_check(struct rt6_info *rt, u32 cookie)
 {
-	if (!rt->rt6i_node || (rt->rt6i_node->fn_sernum != cookie))
+	u32 rt_cookie = 0;
+
+	if (!rt6_get_cookie_safe(rt, &rt_cookie) || rt_cookie != cookie)
 		return NULL;
 
 	if (rt6_check_expired(rt))
@@ -1335,8 +1337,14 @@ static void ip6_link_failure(struct sk_b
 		if (rt->rt6i_flags & RTF_CACHE) {
 			dst_hold(&rt->dst);
 			ip6_del_rt(rt);
-		} else if (rt->rt6i_node && (rt->rt6i_flags & RTF_DEFAULT)) {
-			rt->rt6i_node->fn_sernum = -1;
+		} else {
+			struct fib6_node *fn;
+
+			rcu_read_lock();
+			fn = rcu_dereference(rt->rt6i_node);
+			if (fn && (rt->rt6i_flags & RTF_DEFAULT))
+				fn->fn_sernum = -1;
+			rcu_read_unlock();
 		}
 	}
 }
@@ -1353,7 +1361,8 @@ static void rt6_do_update_pmtu(struct rt
 static bool rt6_cache_allowed_for_pmtu(const struct rt6_info *rt)
 {
 	return !(rt->rt6i_flags & RTF_CACHE) &&
-		(rt->rt6i_flags & RTF_PCPU || rt->rt6i_node);
+		(rt->rt6i_flags & RTF_PCPU ||
+		 rcu_access_pointer(rt->rt6i_node));
 }
 
 static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk,
@@ -1826,6 +1835,10 @@ static struct rt6_info *ip6_route_info_c
 	int addr_type;
 	int err = -EINVAL;
 
+	/* RTF_PCPU is an internal flag; can not be set by userspace */
+	if (cfg->fc_flags & RTF_PCPU)
+		goto out;
+
 	if (cfg->fc_dst_len > 128 || cfg->fc_src_len > 128)
 		goto out;
 #ifndef CONFIG_IPV6_SUBTREES
@@ -2166,6 +2179,8 @@ static int ip6_route_del(struct fib6_con
 				continue;
 			if (cfg->fc_metric && cfg->fc_metric != rt->rt6i_metric)
 				continue;
+			if (cfg->fc_protocol && cfg->fc_protocol != rt->rt6i_protocol)
+				continue;
 			dst_hold(&rt->dst);
 			read_unlock_bh(&table->tb6_lock);
 
@@ -2885,6 +2900,11 @@ static int rtm_to_fib6_config(struct sk_
 	if (tb[RTA_MULTIPATH]) {
 		cfg->fc_mp = nla_data(tb[RTA_MULTIPATH]);
 		cfg->fc_mp_len = nla_len(tb[RTA_MULTIPATH]);
+
+		err = lwtunnel_valid_encap_type_attr(cfg->fc_mp,
+						     cfg->fc_mp_len);
+		if (err < 0)
+			goto errout;
 	}
 
 	if (tb[RTA_PREF]) {
@@ -2898,9 +2918,14 @@ static int rtm_to_fib6_config(struct sk_
 	if (tb[RTA_ENCAP])
 		cfg->fc_encap = tb[RTA_ENCAP];
 
-	if (tb[RTA_ENCAP_TYPE])
+	if (tb[RTA_ENCAP_TYPE]) {
 		cfg->fc_encap_type = nla_get_u16(tb[RTA_ENCAP_TYPE]);
 
+		err = lwtunnel_valid_encap_type(cfg->fc_encap_type);
+		if (err < 0)
+			goto errout;
+	}
+
 	if (tb[RTA_EXPIRES]) {
 		unsigned long timeout = addrconf_timeout_fixup(nla_get_u32(tb[RTA_EXPIRES]), HZ);
 
@@ -2937,17 +2962,11 @@ static int ip6_route_info_append(struct
 				 struct rt6_info *rt, struct fib6_config *r_cfg)
 {
 	struct rt6_nh *nh;
-	struct rt6_info *rtnh;
 	int err = -EEXIST;
 
 	list_for_each_entry(nh, rt6_nh_list, next) {
 		/* check if rt6_info already exists */
-		rtnh = nh->rt6_info;
-
-		if (rtnh->dst.dev == rt->dst.dev &&
-		    rtnh->rt6i_idev == rt->rt6i_idev &&
-		    ipv6_addr_equal(&rtnh->rt6i_gateway,
-				    &rt->rt6i_gateway))
+		if (rt6_duplicate_nexthop(nh->rt6_info, rt))
 			return err;
 	}
 
@@ -3306,7 +3325,8 @@ static int rt6_fill_node(struct net *net
 	if (nla_put_u8(skb, RTA_PREF, IPV6_EXTRACT_PREF(rt->rt6i_flags)))
 		goto nla_put_failure;
 
-	lwtunnel_fill_encap(skb, rt->dst.lwtstate);
+	if (lwtunnel_fill_encap(skb, rt->dst.lwtstate) < 0)
+		goto nla_put_failure;
 
 	nlmsg_end(skb, nlh);
 	return 0;
@@ -3463,7 +3483,10 @@ static int ip6_route_dev_notify(struct n
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 
-	if (event == NETDEV_REGISTER && (dev->flags & IFF_LOOPBACK)) {
+	if (!(dev->flags & IFF_LOOPBACK))
+		return NOTIFY_OK;
+
+	if (event == NETDEV_REGISTER) {
 		net->ipv6.ip6_null_entry->dst.dev = dev;
 		net->ipv6.ip6_null_entry->rt6i_idev = in6_dev_get(dev);
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
@@ -3472,6 +3495,12 @@ static int ip6_route_dev_notify(struct n
 		net->ipv6.ip6_blk_hole_entry->dst.dev = dev;
 		net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev);
 #endif
+	 } else if (event == NETDEV_UNREGISTER) {
+		in6_dev_put(net->ipv6.ip6_null_entry->rt6i_idev);
+#ifdef CONFIG_IPV6_MULTIPLE_TABLES
+		in6_dev_put(net->ipv6.ip6_prohibit_entry->rt6i_idev);
+		in6_dev_put(net->ipv6.ip6_blk_hole_entry->rt6i_idev);
+#endif
 	}
 
 	return NOTIFY_OK;
@@ -3778,9 +3807,24 @@ static struct pernet_operations ip6_rout
 
 static struct notifier_block ip6_route_dev_notifier = {
 	.notifier_call = ip6_route_dev_notify,
-	.priority = 0,
+	.priority = ADDRCONF_NOTIFY_PRIORITY - 10,
 };
 
+void __init ip6_route_init_special_entries(void)
+{
+	/* Registering of the loopback is done before this portion of code,
+	 * the loopback reference in rt6_info will not be taken, do it
+	 * manually for init_net */
+	init_net.ipv6.ip6_null_entry->dst.dev = init_net.loopback_dev;
+	init_net.ipv6.ip6_null_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
+  #ifdef CONFIG_IPV6_MULTIPLE_TABLES
+	init_net.ipv6.ip6_prohibit_entry->dst.dev = init_net.loopback_dev;
+	init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
+	init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
+	init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
+  #endif
+}
+
 int __init ip6_route_init(void)
 {
 	int ret;
@@ -3807,17 +3851,6 @@ int __init ip6_route_init(void)
 
 	ip6_dst_blackhole_ops.kmem_cachep = ip6_dst_ops_template.kmem_cachep;
 
-	/* Registering of the loopback is done before this portion of code,
-	 * the loopback reference in rt6_info will not be taken, do it
-	 * manually for init_net */
-	init_net.ipv6.ip6_null_entry->dst.dev = init_net.loopback_dev;
-	init_net.ipv6.ip6_null_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
-  #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-	init_net.ipv6.ip6_prohibit_entry->dst.dev = init_net.loopback_dev;
-	init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
-	init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
-	init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
-  #endif
 	ret = fib6_init();
 	if (ret)
 		goto out_register_subsys;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/sit.c linux-libre-4.9.52-gnu/net/ipv6/sit.c
--- linux-libre-4.9-gnu/net/ipv6/sit.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/sit.c	2017-09-27 08:40:05.000000000 -0400
@@ -1390,6 +1390,7 @@ static int ipip6_tunnel_init(struct net_
 	err = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);
 	if (err) {
 		free_percpu(dev->tstats);
+		dev->tstats = NULL;
 		return err;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/syncookies.c linux-libre-4.9.52-gnu/net/ipv6/syncookies.c
--- linux-libre-4.9-gnu/net/ipv6/syncookies.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/syncookies.c	2017-09-27 08:40:05.000000000 -0400
@@ -209,6 +209,7 @@ struct sock *cookie_v6_check(struct sock
 	treq->snt_synack.v64	= 0;
 	treq->rcv_isn = ntohl(th->seq) - 1;
 	treq->snt_isn = cookie;
+	treq->txhash = net_tx_rndhash();
 
 	/*
 	 * We need to lookup the dst_entry to get the correct window size.
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/tcp_ipv6.c linux-libre-4.9.52-gnu/net/ipv6/tcp_ipv6.c
--- linux-libre-4.9-gnu/net/ipv6/tcp_ipv6.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/tcp_ipv6.c	2017-09-27 08:40:05.000000000 -0400
@@ -148,8 +148,13 @@ static int tcp_v6_connect(struct sock *s
 	 *	connect() to INADDR_ANY means loopback (BSD'ism).
 	 */
 
-	if (ipv6_addr_any(&usin->sin6_addr))
-		usin->sin6_addr.s6_addr[15] = 0x1;
+	if (ipv6_addr_any(&usin->sin6_addr)) {
+		if (ipv6_addr_v4mapped(&sk->sk_v6_rcv_saddr))
+			ipv6_addr_set_v4mapped(htonl(INADDR_LOOPBACK),
+					       &usin->sin6_addr);
+		else
+			usin->sin6_addr = in6addr_loopback;
+	}
 
 	addr_type = ipv6_addr_type(&usin->sin6_addr);
 
@@ -188,7 +193,7 @@ static int tcp_v6_connect(struct sock *s
 	 *	TCP over IPv4
 	 */
 
-	if (addr_type == IPV6_ADDR_MAPPED) {
+	if (addr_type & IPV6_ADDR_MAPPED) {
 		u32 exthdrlen = icsk->icsk_ext_hdr_len;
 		struct sockaddr_in sin;
 
@@ -375,10 +380,12 @@ static void tcp_v6_err(struct sk_buff *s
 	np = inet6_sk(sk);
 
 	if (type == NDISC_REDIRECT) {
-		struct dst_entry *dst = __sk_dst_check(sk, np->dst_cookie);
+		if (!sock_owned_by_user(sk)) {
+			struct dst_entry *dst = __sk_dst_check(sk, np->dst_cookie);
 
-		if (dst)
-			dst->ops->redirect(dst, sk, skb);
+			if (dst)
+				dst->ops->redirect(dst, sk, skb);
+		}
 		goto out;
 	}
 
@@ -467,7 +474,7 @@ static int tcp_v6_send_synack(const stru
 		opt = ireq->ipv6_opt;
 		if (!opt)
 			opt = rcu_dereference(np->opt);
-		err = ip6_xmit(sk, skb, fl6, opt, np->tclass);
+		err = ip6_xmit(sk, skb, fl6, sk->sk_mark, opt, np->tclass);
 		rcu_read_unlock();
 		err = net_xmit_eval(err);
 	}
@@ -837,7 +844,7 @@ static void tcp_v6_send_response(const s
 	dst = ip6_dst_lookup_flow(ctl_sk, &fl6, NULL);
 	if (!IS_ERR(dst)) {
 		skb_dst_set(buff, dst);
-		ip6_xmit(ctl_sk, buff, &fl6, NULL, tclass);
+		ip6_xmit(ctl_sk, buff, &fl6, fl6.flowi6_mark, NULL, tclass);
 		TCP_INC_STATS(net, TCP_MIB_OUTSEGS);
 		if (rst)
 			TCP_INC_STATS(net, TCP_MIB_OUTRSTS);
@@ -987,6 +994,16 @@ drop:
 	return 0; /* don't send reset */
 }
 
+static void tcp_v6_restore_cb(struct sk_buff *skb)
+{
+	/* We need to move header back to the beginning if xfrm6_policy_check()
+	 * and tcp_v6_fill_cb() are going to be called again.
+	 * ip6_datagram_recv_specific_ctl() also expects IP6CB to be there.
+	 */
+	memmove(IP6CB(skb), &TCP_SKB_CB(skb)->header.h6,
+		sizeof(struct inet6_skb_parm));
+}
+
 static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
 					 struct request_sock *req,
 					 struct dst_entry *dst,
@@ -1034,6 +1051,7 @@ static struct sock *tcp_v6_syn_recv_sock
 		newtp->af_specific = &tcp_sock_ipv6_mapped_specific;
 #endif
 
+		newnp->ipv6_mc_list = NULL;
 		newnp->ipv6_ac_list = NULL;
 		newnp->ipv6_fl_list = NULL;
 		newnp->pktoptions  = NULL;
@@ -1103,6 +1121,7 @@ static struct sock *tcp_v6_syn_recv_sock
 	   First: no IPv4 options.
 	 */
 	newinet->inet_opt = NULL;
+	newnp->ipv6_mc_list = NULL;
 	newnp->ipv6_ac_list = NULL;
 	newnp->ipv6_fl_list = NULL;
 
@@ -1178,8 +1197,10 @@ static struct sock *tcp_v6_syn_recv_sock
 						      sk_gfp_mask(sk, GFP_ATOMIC));
 			consume_skb(ireq->pktopts);
 			ireq->pktopts = NULL;
-			if (newnp->pktoptions)
+			if (newnp->pktoptions) {
+				tcp_v6_restore_cb(newnp->pktoptions);
 				skb_set_owner_r(newnp->pktoptions, newsk);
+			}
 		}
 	}
 
@@ -1194,16 +1215,6 @@ out:
 	return NULL;
 }
 
-static void tcp_v6_restore_cb(struct sk_buff *skb)
-{
-	/* We need to move header back to the beginning if xfrm6_policy_check()
-	 * and tcp_v6_fill_cb() are going to be called again.
-	 * ip6_datagram_recv_specific_ctl() also expects IP6CB to be there.
-	 */
-	memmove(IP6CB(skb), &TCP_SKB_CB(skb)->header.h6,
-		sizeof(struct inet6_skb_parm));
-}
-
 /* The socket must have it's spinlock held when we get
  * here, unless it is a TCP_LISTEN socket.
  *
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/udp.c linux-libre-4.9.52-gnu/net/ipv6/udp.c
--- linux-libre-4.9-gnu/net/ipv6/udp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/udp.c	2017-09-27 08:40:05.000000000 -0400
@@ -1037,6 +1037,7 @@ int udpv6_sendmsg(struct sock *sk, struc
 	ipc6.hlimit = -1;
 	ipc6.tclass = -1;
 	ipc6.dontfrag = -1;
+	sockc.tsflags = sk->sk_tsflags;
 
 	/* destination address check */
 	if (sin6) {
@@ -1048,6 +1049,10 @@ int udpv6_sendmsg(struct sock *sk, struc
 			if (addr_len < SIN6_LEN_RFC2133)
 				return -EINVAL;
 			daddr = &sin6->sin6_addr;
+			if (ipv6_addr_any(daddr) &&
+			    ipv6_addr_v4mapped(&np->saddr))
+				ipv6_addr_set_v4mapped(htonl(INADDR_LOOPBACK),
+						       daddr);
 			break;
 		case AF_INET:
 			goto do_udp_sendmsg;
@@ -1156,7 +1161,6 @@ do_udp_sendmsg:
 		fl6.flowi6_oif = np->sticky_pktinfo.ipi6_ifindex;
 
 	fl6.flowi6_mark = sk->sk_mark;
-	sockc.tsflags = sk->sk_tsflags;
 
 	if (msg->msg_controllen) {
 		opt = &opt_space;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/udp_offload.c linux-libre-4.9.52-gnu/net/ipv6/udp_offload.c
--- linux-libre-4.9-gnu/net/ipv6/udp_offload.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/udp_offload.c	2017-09-27 08:40:05.000000000 -0400
@@ -29,6 +29,7 @@ static struct sk_buff *udp6_ufo_fragment
 	u8 frag_hdr_sz = sizeof(struct frag_hdr);
 	__wsum csum;
 	int tnl_hlen;
+	int err;
 
 	mss = skb_shinfo(skb)->gso_size;
 	if (unlikely(skb->len <= mss))
@@ -71,7 +72,7 @@ static struct sk_buff *udp6_ufo_fragment
 		if (uh->check == 0)
 			uh->check = CSUM_MANGLED_0;
 
-		skb->ip_summed = CHECKSUM_NONE;
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
 
 		/* If there is no outer header we can fake a checksum offload
 		 * due to the fact that we have already done the checksum in
@@ -90,7 +91,10 @@ static struct sk_buff *udp6_ufo_fragment
 		/* Find the unfragmentable header and shift it left by frag_hdr_sz
 		 * bytes to insert fragment header.
 		 */
-		unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
+		err = ip6_find_1stfragopt(skb, &prevhdr);
+		if (err < 0)
+			return ERR_PTR(err);
+		unfrag_ip6hlen = err;
 		nexthdr = *prevhdr;
 		*prevhdr = NEXTHDR_FRAGMENT;
 		unfrag_len = (skb_network_header(skb) - skb_mac_header(skb)) +
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/xfrm6_mode_ro.c linux-libre-4.9.52-gnu/net/ipv6/xfrm6_mode_ro.c
--- linux-libre-4.9-gnu/net/ipv6/xfrm6_mode_ro.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/xfrm6_mode_ro.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,6 +47,8 @@ static int xfrm6_ro_output(struct xfrm_s
 	iph = ipv6_hdr(skb);
 
 	hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
+	if (hdr_len < 0)
+		return hdr_len;
 	skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data);
 	skb_set_network_header(skb, -x->props.header_len);
 	skb->transport_header = skb->network_header + hdr_len;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipv6/xfrm6_mode_transport.c linux-libre-4.9.52-gnu/net/ipv6/xfrm6_mode_transport.c
--- linux-libre-4.9-gnu/net/ipv6/xfrm6_mode_transport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipv6/xfrm6_mode_transport.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,6 +28,8 @@ static int xfrm6_transport_output(struct
 	iph = ipv6_hdr(skb);
 
 	hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
+	if (hdr_len < 0)
+		return hdr_len;
 	skb_set_mac_header(skb, (prevhdr - x->props.header_len) - skb->data);
 	skb_set_network_header(skb, -x->props.header_len);
 	skb->transport_header = skb->network_header + hdr_len;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/ipx/af_ipx.c linux-libre-4.9.52-gnu/net/ipx/af_ipx.c
--- linux-libre-4.9-gnu/net/ipx/af_ipx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/ipx/af_ipx.c	2017-09-27 08:40:05.000000000 -0400
@@ -1168,11 +1168,10 @@ static int ipxitf_ioctl(unsigned int cmd
 		sipx->sipx_network	= ipxif->if_netnum;
 		memcpy(sipx->sipx_node, ipxif->if_node,
 			sizeof(sipx->sipx_node));
-		rc = -EFAULT;
+		rc = 0;
 		if (copy_to_user(arg, &ifr, sizeof(ifr)))
-			break;
+			rc = -EFAULT;
 		ipxitf_put(ipxif);
-		rc = 0;
 		break;
 	}
 	case SIOCAIPXITFCRT:
diff -druNp --no-dereference linux-libre-4.9-gnu/net/irda/af_irda.c linux-libre-4.9.52-gnu/net/irda/af_irda.c
--- linux-libre-4.9-gnu/net/irda/af_irda.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/irda/af_irda.c	2017-09-27 08:40:05.000000000 -0400
@@ -2223,7 +2223,7 @@ static int irda_getsockopt(struct socket
 {
 	struct sock *sk = sock->sk;
 	struct irda_sock *self = irda_sk(sk);
-	struct irda_device_list list;
+	struct irda_device_list list = { 0 };
 	struct irda_device_info *discoveries;
 	struct irda_ias_set *	ias_opt;	/* IAS get/query params */
 	struct ias_object *	ias_obj;	/* Object in IAS */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/irda/irqueue.c linux-libre-4.9.52-gnu/net/irda/irqueue.c
--- linux-libre-4.9-gnu/net/irda/irqueue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/irda/irqueue.c	2017-09-27 08:40:05.000000000 -0400
@@ -383,9 +383,6 @@ EXPORT_SYMBOL(hashbin_new);
  *    for deallocating this structure if it's complex. If not the user can
  *    just supply kfree, which should take care of the job.
  */
-#ifdef CONFIG_LOCKDEP
-static int hashbin_lock_depth = 0;
-#endif
 int hashbin_delete( hashbin_t* hashbin, FREE_FUNC free_func)
 {
 	irda_queue_t* queue;
@@ -396,22 +393,27 @@ int hashbin_delete( hashbin_t* hashbin,
 	IRDA_ASSERT(hashbin->magic == HB_MAGIC, return -1;);
 
 	/* Synchronize */
-	if ( hashbin->hb_type & HB_LOCK ) {
-		spin_lock_irqsave_nested(&hashbin->hb_spinlock, flags,
-					 hashbin_lock_depth++);
-	}
+	if (hashbin->hb_type & HB_LOCK)
+		spin_lock_irqsave(&hashbin->hb_spinlock, flags);
 
 	/*
 	 *  Free the entries in the hashbin, TODO: use hashbin_clear when
 	 *  it has been shown to work
 	 */
 	for (i = 0; i < HASHBIN_SIZE; i ++ ) {
-		queue = dequeue_first((irda_queue_t**) &hashbin->hb_queue[i]);
-		while (queue ) {
-			if (free_func)
-				(*free_func)(queue);
-			queue = dequeue_first(
-				(irda_queue_t**) &hashbin->hb_queue[i]);
+		while (1) {
+			queue = dequeue_first((irda_queue_t**) &hashbin->hb_queue[i]);
+
+			if (!queue)
+				break;
+
+			if (free_func) {
+				if (hashbin->hb_type & HB_LOCK)
+					spin_unlock_irqrestore(&hashbin->hb_spinlock, flags);
+				free_func(queue);
+				if (hashbin->hb_type & HB_LOCK)
+					spin_lock_irqsave(&hashbin->hb_spinlock, flags);
+			}
 		}
 	}
 
@@ -420,12 +422,8 @@ int hashbin_delete( hashbin_t* hashbin,
 	hashbin->magic = ~HB_MAGIC;
 
 	/* Release lock */
-	if ( hashbin->hb_type & HB_LOCK) {
+	if (hashbin->hb_type & HB_LOCK)
 		spin_unlock_irqrestore(&hashbin->hb_spinlock, flags);
-#ifdef CONFIG_LOCKDEP
-		hashbin_lock_depth--;
-#endif
-	}
 
 	/*
 	 *  Free the hashbin structure
diff -druNp --no-dereference linux-libre-4.9-gnu/net/iucv/af_iucv.c linux-libre-4.9.52-gnu/net/iucv/af_iucv.c
--- linux-libre-4.9-gnu/net/iucv/af_iucv.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/iucv/af_iucv.c	2017-09-27 08:40:05.000000000 -0400
@@ -1036,7 +1036,8 @@ static int iucv_sock_sendmsg(struct sock
 {
 	struct sock *sk = sock->sk;
 	struct iucv_sock *iucv = iucv_sk(sk);
-	size_t headroom, linear;
+	size_t headroom = 0;
+	size_t linear;
 	struct sk_buff *skb;
 	struct iucv_message txmsg = {0};
 	struct cmsghdr *cmsg;
@@ -1114,18 +1115,20 @@ static int iucv_sock_sendmsg(struct sock
 	 * this is fine for SOCK_SEQPACKET (unless we want to support
 	 * segmented records using the MSG_EOR flag), but
 	 * for SOCK_STREAM we might want to improve it in future */
-	headroom = (iucv->transport == AF_IUCV_TRANS_HIPER)
-		   ? sizeof(struct af_iucv_trans_hdr) + ETH_HLEN : 0;
-	if (headroom + len < PAGE_SIZE) {
+	if (iucv->transport == AF_IUCV_TRANS_HIPER) {
+		headroom = sizeof(struct af_iucv_trans_hdr) + ETH_HLEN;
 		linear = len;
 	} else {
-		/* In nonlinear "classic" iucv skb,
-		 * reserve space for iucv_array
-		 */
-		if (iucv->transport != AF_IUCV_TRANS_HIPER)
-			headroom += sizeof(struct iucv_array) *
-				    (MAX_SKB_FRAGS + 1);
-		linear = PAGE_SIZE - headroom;
+		if (len < PAGE_SIZE) {
+			linear = len;
+		} else {
+			/* In nonlinear "classic" iucv skb,
+			 * reserve space for iucv_array
+			 */
+			headroom = sizeof(struct iucv_array) *
+				   (MAX_SKB_FRAGS + 1);
+			linear = PAGE_SIZE - headroom;
+		}
 	}
 	skb = sock_alloc_send_pskb(sk, headroom + linear, len - linear,
 				   noblock, &err, 0);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/kcm/kcmsock.c linux-libre-4.9.52-gnu/net/kcm/kcmsock.c
--- linux-libre-4.9-gnu/net/kcm/kcmsock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/kcm/kcmsock.c	2017-09-27 08:40:05.000000000 -0400
@@ -929,23 +929,25 @@ static int kcm_sendmsg(struct socket *so
 			goto out_error;
 	}
 
-	/* New message, alloc head skb */
-	head = alloc_skb(0, sk->sk_allocation);
-	while (!head) {
-		kcm_push(kcm);
-		err = sk_stream_wait_memory(sk, &timeo);
-		if (err)
-			goto out_error;
-
+	if (msg_data_left(msg)) {
+		/* New message, alloc head skb */
 		head = alloc_skb(0, sk->sk_allocation);
-	}
+		while (!head) {
+			kcm_push(kcm);
+			err = sk_stream_wait_memory(sk, &timeo);
+			if (err)
+				goto out_error;
 
-	skb = head;
+			head = alloc_skb(0, sk->sk_allocation);
+		}
 
-	/* Set ip_summed to CHECKSUM_UNNECESSARY to avoid calling
-	 * csum_and_copy_from_iter from skb_do_copy_data_nocache.
-	 */
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
+		skb = head;
+
+		/* Set ip_summed to CHECKSUM_UNNECESSARY to avoid calling
+		 * csum_and_copy_from_iter from skb_do_copy_data_nocache.
+		 */
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+	}
 
 start:
 	while (msg_data_left(msg)) {
@@ -1018,10 +1020,12 @@ wait_for_memory:
 	if (eor) {
 		bool not_busy = skb_queue_empty(&sk->sk_write_queue);
 
-		/* Message complete, queue it on send buffer */
-		__skb_queue_tail(&sk->sk_write_queue, head);
-		kcm->seq_skb = NULL;
-		KCM_STATS_INCR(kcm->stats.tx_msgs);
+		if (head) {
+			/* Message complete, queue it on send buffer */
+			__skb_queue_tail(&sk->sk_write_queue, head);
+			kcm->seq_skb = NULL;
+			KCM_STATS_INCR(kcm->stats.tx_msgs);
+		}
 
 		if (msg->msg_flags & MSG_BATCH) {
 			kcm->tx_wait_more = true;
@@ -1040,8 +1044,10 @@ wait_for_memory:
 	} else {
 		/* Message not complete, save state */
 partial_message:
-		kcm->seq_skb = head;
-		kcm_tx_msg(head)->last_skb = skb;
+		if (head) {
+			kcm->seq_skb = head;
+			kcm_tx_msg(head)->last_skb = skb;
+		}
 	}
 
 	KCM_STATS_ADD(kcm->stats.tx_bytes, copied);
@@ -1375,6 +1381,10 @@ static int kcm_attach(struct socket *soc
 	if (!csk)
 		return -EINVAL;
 
+	/* We must prevent loops or risk deadlock ! */
+	if (csk->sk_family == PF_KCM)
+		return -EOPNOTSUPP;
+
 	psock = kmem_cache_zalloc(kcm_psockp, GFP_KERNEL);
 	if (!psock)
 		return -ENOMEM;
@@ -1679,7 +1689,7 @@ static int kcm_ioctl(struct socket *sock
 		struct kcm_attach info;
 
 		if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
-			err = -EFAULT;
+			return -EFAULT;
 
 		err = kcm_attach_ioctl(sock, &info);
 
@@ -1689,7 +1699,7 @@ static int kcm_ioctl(struct socket *sock
 		struct kcm_unattach info;
 
 		if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
-			err = -EFAULT;
+			return -EFAULT;
 
 		err = kcm_unattach_ioctl(sock, &info);
 
@@ -1700,7 +1710,7 @@ static int kcm_ioctl(struct socket *sock
 		struct socket *newsock = NULL;
 
 		if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
-			err = -EFAULT;
+			return -EFAULT;
 
 		err = kcm_clone(sock, &info, &newsock);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/key/af_key.c linux-libre-4.9.52-gnu/net/key/af_key.c
--- linux-libre-4.9-gnu/net/key/af_key.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/key/af_key.c	2017-09-27 08:40:05.000000000 -0400
@@ -63,8 +63,13 @@ struct pfkey_sock {
 		} u;
 		struct sk_buff	*skb;
 	} dump;
+	struct mutex dump_lock;
 };
 
+static int parse_sockaddr_pair(struct sockaddr *sa, int ext_len,
+			       xfrm_address_t *saddr, xfrm_address_t *daddr,
+			       u16 *family);
+
 static inline struct pfkey_sock *pfkey_sk(struct sock *sk)
 {
 	return (struct pfkey_sock *)sk;
@@ -139,6 +144,7 @@ static int pfkey_create(struct net *net,
 {
 	struct netns_pfkey *net_pfkey = net_generic(net, pfkey_net_id);
 	struct sock *sk;
+	struct pfkey_sock *pfk;
 	int err;
 
 	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
@@ -153,6 +159,9 @@ static int pfkey_create(struct net *net,
 	if (sk == NULL)
 		goto out;
 
+	pfk = pfkey_sk(sk);
+	mutex_init(&pfk->dump_lock);
+
 	sock->ops = &pfkey_ops;
 	sock_init_data(sock, sk);
 
@@ -219,7 +228,7 @@ static int pfkey_broadcast_one(struct sk
 #define BROADCAST_ONE		1
 #define BROADCAST_REGISTERED	2
 #define BROADCAST_PROMISC_ONLY	4
-static int pfkey_broadcast(struct sk_buff *skb,
+static int pfkey_broadcast(struct sk_buff *skb, gfp_t allocation,
 			   int broadcast_flags, struct sock *one_sk,
 			   struct net *net)
 {
@@ -269,7 +278,7 @@ static int pfkey_broadcast(struct sk_buf
 	rcu_read_unlock();
 
 	if (one_sk != NULL)
-		err = pfkey_broadcast_one(skb, &skb2, GFP_KERNEL, one_sk);
+		err = pfkey_broadcast_one(skb, &skb2, allocation, one_sk);
 
 	kfree_skb(skb2);
 	kfree_skb(skb);
@@ -281,23 +290,36 @@ static int pfkey_do_dump(struct pfkey_so
 	struct sadb_msg *hdr;
 	int rc;
 
+	mutex_lock(&pfk->dump_lock);
+	if (!pfk->dump.dump) {
+		rc = 0;
+		goto out;
+	}
+
 	rc = pfk->dump.dump(pfk);
-	if (rc == -ENOBUFS)
-		return 0;
+	if (rc == -ENOBUFS) {
+		rc = 0;
+		goto out;
+	}
 
 	if (pfk->dump.skb) {
-		if (!pfkey_can_dump(&pfk->sk))
-			return 0;
+		if (!pfkey_can_dump(&pfk->sk)) {
+			rc = 0;
+			goto out;
+		}
 
 		hdr = (struct sadb_msg *) pfk->dump.skb->data;
 		hdr->sadb_msg_seq = 0;
 		hdr->sadb_msg_errno = rc;
-		pfkey_broadcast(pfk->dump.skb, BROADCAST_ONE,
+		pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
 				&pfk->sk, sock_net(&pfk->sk));
 		pfk->dump.skb = NULL;
 	}
 
 	pfkey_terminate_dump(pfk);
+
+out:
+	mutex_unlock(&pfk->dump_lock);
 	return rc;
 }
 
@@ -333,7 +355,7 @@ static int pfkey_error(const struct sadb
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) /
 			     sizeof(uint64_t));
 
-	pfkey_broadcast(skb, BROADCAST_ONE, sk, sock_net(sk));
+	pfkey_broadcast(skb, GFP_KERNEL, BROADCAST_ONE, sk, sock_net(sk));
 
 	return 0;
 }
@@ -1135,6 +1157,7 @@ static struct xfrm_state * pfkey_msg2xfr
 			goto out;
 	}
 
+	err = -ENOBUFS;
 	key = ext_hdrs[SADB_EXT_KEY_AUTH - 1];
 	if (sa->sadb_sa_auth) {
 		int keysize = 0;
@@ -1146,8 +1169,10 @@ static struct xfrm_state * pfkey_msg2xfr
 		if (key)
 			keysize = (key->sadb_key_bits + 7) / 8;
 		x->aalg = kmalloc(sizeof(*x->aalg) + keysize, GFP_KERNEL);
-		if (!x->aalg)
+		if (!x->aalg) {
+			err = -ENOMEM;
 			goto out;
+		}
 		strcpy(x->aalg->alg_name, a->name);
 		x->aalg->alg_key_len = 0;
 		if (key) {
@@ -1166,8 +1191,10 @@ static struct xfrm_state * pfkey_msg2xfr
 				goto out;
 			}
 			x->calg = kmalloc(sizeof(*x->calg), GFP_KERNEL);
-			if (!x->calg)
+			if (!x->calg) {
+				err = -ENOMEM;
 				goto out;
+			}
 			strcpy(x->calg->alg_name, a->name);
 			x->props.calgo = sa->sadb_sa_encrypt;
 		} else {
@@ -1181,8 +1208,10 @@ static struct xfrm_state * pfkey_msg2xfr
 			if (key)
 				keysize = (key->sadb_key_bits + 7) / 8;
 			x->ealg = kmalloc(sizeof(*x->ealg) + keysize, GFP_KERNEL);
-			if (!x->ealg)
+			if (!x->ealg) {
+				err = -ENOMEM;
 				goto out;
+			}
 			strcpy(x->ealg->alg_name, a->name);
 			x->ealg->alg_key_len = 0;
 			if (key) {
@@ -1227,8 +1256,10 @@ static struct xfrm_state * pfkey_msg2xfr
 		struct xfrm_encap_tmpl *natt;
 
 		x->encap = kmalloc(sizeof(*x->encap), GFP_KERNEL);
-		if (!x->encap)
+		if (!x->encap) {
+			err = -ENOMEM;
 			goto out;
+		}
 
 		natt = x->encap;
 		n_type = ext_hdrs[SADB_X_EXT_NAT_T_TYPE-1];
@@ -1365,7 +1396,7 @@ static int pfkey_getspi(struct sock *sk,
 
 	xfrm_state_put(x);
 
-	pfkey_broadcast(resp_skb, BROADCAST_ONE, sk, net);
+	pfkey_broadcast(resp_skb, GFP_KERNEL, BROADCAST_ONE, sk, net);
 
 	return 0;
 }
@@ -1452,7 +1483,7 @@ static int key_notify_sa(struct xfrm_sta
 	hdr->sadb_msg_seq = c->seq;
 	hdr->sadb_msg_pid = c->portid;
 
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, xs_net(x));
+	pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, xs_net(x));
 
 	return 0;
 }
@@ -1565,7 +1596,7 @@ static int pfkey_get(struct sock *sk, st
 	out_hdr->sadb_msg_reserved = 0;
 	out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
 	out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-	pfkey_broadcast(out_skb, BROADCAST_ONE, sk, sock_net(sk));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk, sock_net(sk));
 
 	return 0;
 }
@@ -1670,8 +1701,8 @@ static int pfkey_register(struct sock *s
 		return -ENOBUFS;
 	}
 
-	pfkey_broadcast(supp_skb, BROADCAST_REGISTERED, sk, sock_net(sk));
-
+	pfkey_broadcast(supp_skb, GFP_KERNEL, BROADCAST_REGISTERED, sk,
+			sock_net(sk));
 	return 0;
 }
 
@@ -1689,7 +1720,8 @@ static int unicast_flush_resp(struct soc
 	hdr->sadb_msg_errno = (uint8_t) 0;
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
 
-	return pfkey_broadcast(skb, BROADCAST_ONE, sk, sock_net(sk));
+	return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ONE, sk,
+			       sock_net(sk));
 }
 
 static int key_notify_sa_flush(const struct km_event *c)
@@ -1710,7 +1742,7 @@ static int key_notify_sa_flush(const str
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
 	hdr->sadb_msg_reserved = 0;
 
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, c->net);
+	pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net);
 
 	return 0;
 }
@@ -1767,7 +1799,7 @@ static int dump_sa(struct xfrm_state *x,
 	out_hdr->sadb_msg_pid = pfk->dump.msg_portid;
 
 	if (pfk->dump.skb)
-		pfkey_broadcast(pfk->dump.skb, BROADCAST_ONE,
+		pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
 				&pfk->sk, sock_net(&pfk->sk));
 	pfk->dump.skb = out_skb;
 
@@ -1793,19 +1825,26 @@ static int pfkey_dump(struct sock *sk, s
 	struct xfrm_address_filter *filter = NULL;
 	struct pfkey_sock *pfk = pfkey_sk(sk);
 
-	if (pfk->dump.dump != NULL)
+	mutex_lock(&pfk->dump_lock);
+	if (pfk->dump.dump != NULL) {
+		mutex_unlock(&pfk->dump_lock);
 		return -EBUSY;
+	}
 
 	proto = pfkey_satype2proto(hdr->sadb_msg_satype);
-	if (proto == 0)
+	if (proto == 0) {
+		mutex_unlock(&pfk->dump_lock);
 		return -EINVAL;
+	}
 
 	if (ext_hdrs[SADB_X_EXT_FILTER - 1]) {
 		struct sadb_x_filter *xfilter = ext_hdrs[SADB_X_EXT_FILTER - 1];
 
 		filter = kmalloc(sizeof(*filter), GFP_KERNEL);
-		if (filter == NULL)
+		if (filter == NULL) {
+			mutex_unlock(&pfk->dump_lock);
 			return -ENOMEM;
+		}
 
 		memcpy(&filter->saddr, &xfilter->sadb_x_filter_saddr,
 		       sizeof(xfrm_address_t));
@@ -1821,6 +1860,7 @@ static int pfkey_dump(struct sock *sk, s
 	pfk->dump.dump = pfkey_dump_sa;
 	pfk->dump.done = pfkey_dump_sa_done;
 	xfrm_state_walk_init(&pfk->dump.u.state, proto, filter);
+	mutex_unlock(&pfk->dump_lock);
 
 	return pfkey_do_dump(pfk);
 }
@@ -1847,7 +1887,7 @@ static int pfkey_promisc(struct sock *sk
 		new_hdr->sadb_msg_errno = 0;
 	}
 
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, sock_net(sk));
+	pfkey_broadcast(skb, GFP_KERNEL, BROADCAST_ALL, NULL, sock_net(sk));
 	return 0;
 }
 
@@ -1913,19 +1953,14 @@ parse_ipsecrequest(struct xfrm_policy *x
 
 	/* addresses present only in tunnel mode */
 	if (t->mode == XFRM_MODE_TUNNEL) {
-		u8 *sa = (u8 *) (rq + 1);
-		int family, socklen;
-
-		family = pfkey_sockaddr_extract((struct sockaddr *)sa,
-						&t->saddr);
-		if (!family)
-			return -EINVAL;
+		int err;
 
-		socklen = pfkey_sockaddr_len(family);
-		if (pfkey_sockaddr_extract((struct sockaddr *)(sa + socklen),
-					   &t->id.daddr) != family)
-			return -EINVAL;
-		t->encap_family = family;
+		err = parse_sockaddr_pair(
+			(struct sockaddr *)(rq + 1),
+			rq->sadb_x_ipsecrequest_len - sizeof(*rq),
+			&t->saddr, &t->id.daddr, &t->encap_family);
+		if (err)
+			return err;
 	} else
 		t->encap_family = xp->family;
 
@@ -1945,7 +1980,11 @@ parse_ipsecrequests(struct xfrm_policy *
 	if (pol->sadb_x_policy_len * 8 < sizeof(struct sadb_x_policy))
 		return -EINVAL;
 
-	while (len >= sizeof(struct sadb_x_ipsecrequest)) {
+	while (len >= sizeof(*rq)) {
+		if (len < rq->sadb_x_ipsecrequest_len ||
+		    rq->sadb_x_ipsecrequest_len < sizeof(*rq))
+			return -EINVAL;
+
 		if ((err = parse_ipsecrequest(xp, rq)) < 0)
 			return err;
 		len -= rq->sadb_x_ipsecrequest_len;
@@ -2181,7 +2220,7 @@ static int key_notify_policy(struct xfrm
 	out_hdr->sadb_msg_errno = 0;
 	out_hdr->sadb_msg_seq = c->seq;
 	out_hdr->sadb_msg_pid = c->portid;
-	pfkey_broadcast(out_skb, BROADCAST_ALL, NULL, xp_net(xp));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, NULL, xp_net(xp));
 	return 0;
 
 }
@@ -2401,14 +2440,13 @@ static int key_pol_get_resp(struct sock
 	out_hdr->sadb_msg_errno = 0;
 	out_hdr->sadb_msg_seq = hdr->sadb_msg_seq;
 	out_hdr->sadb_msg_pid = hdr->sadb_msg_pid;
-	pfkey_broadcast(out_skb, BROADCAST_ONE, sk, xp_net(xp));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ONE, sk, xp_net(xp));
 	err = 0;
 
 out:
 	return err;
 }
 
-#ifdef CONFIG_NET_KEY_MIGRATE
 static int pfkey_sockaddr_pair_size(sa_family_t family)
 {
 	return PFKEY_ALIGN8(pfkey_sockaddr_len(family) * 2);
@@ -2420,7 +2458,7 @@ static int parse_sockaddr_pair(struct so
 {
 	int af, socklen;
 
-	if (ext_len < pfkey_sockaddr_pair_size(sa->sa_family))
+	if (ext_len < 2 || ext_len < pfkey_sockaddr_pair_size(sa->sa_family))
 		return -EINVAL;
 
 	af = pfkey_sockaddr_extract(sa, saddr);
@@ -2436,6 +2474,7 @@ static int parse_sockaddr_pair(struct so
 	return 0;
 }
 
+#ifdef CONFIG_NET_KEY_MIGRATE
 static int ipsecrequests_to_migrate(struct sadb_x_ipsecrequest *rq1, int len,
 				    struct xfrm_migrate *m)
 {
@@ -2443,13 +2482,14 @@ static int ipsecrequests_to_migrate(stru
 	struct sadb_x_ipsecrequest *rq2;
 	int mode;
 
-	if (len <= sizeof(struct sadb_x_ipsecrequest) ||
-	    len < rq1->sadb_x_ipsecrequest_len)
+	if (len < sizeof(*rq1) ||
+	    len < rq1->sadb_x_ipsecrequest_len ||
+	    rq1->sadb_x_ipsecrequest_len < sizeof(*rq1))
 		return -EINVAL;
 
 	/* old endoints */
 	err = parse_sockaddr_pair((struct sockaddr *)(rq1 + 1),
-				  rq1->sadb_x_ipsecrequest_len,
+				  rq1->sadb_x_ipsecrequest_len - sizeof(*rq1),
 				  &m->old_saddr, &m->old_daddr,
 				  &m->old_family);
 	if (err)
@@ -2458,13 +2498,14 @@ static int ipsecrequests_to_migrate(stru
 	rq2 = (struct sadb_x_ipsecrequest *)((u8 *)rq1 + rq1->sadb_x_ipsecrequest_len);
 	len -= rq1->sadb_x_ipsecrequest_len;
 
-	if (len <= sizeof(struct sadb_x_ipsecrequest) ||
-	    len < rq2->sadb_x_ipsecrequest_len)
+	if (len <= sizeof(*rq2) ||
+	    len < rq2->sadb_x_ipsecrequest_len ||
+	    rq2->sadb_x_ipsecrequest_len < sizeof(*rq2))
 		return -EINVAL;
 
 	/* new endpoints */
 	err = parse_sockaddr_pair((struct sockaddr *)(rq2 + 1),
-				  rq2->sadb_x_ipsecrequest_len,
+				  rq2->sadb_x_ipsecrequest_len - sizeof(*rq2),
 				  &m->new_saddr, &m->new_daddr,
 				  &m->new_family);
 	if (err)
@@ -2655,7 +2696,7 @@ static int dump_sp(struct xfrm_policy *x
 	out_hdr->sadb_msg_pid = pfk->dump.msg_portid;
 
 	if (pfk->dump.skb)
-		pfkey_broadcast(pfk->dump.skb, BROADCAST_ONE,
+		pfkey_broadcast(pfk->dump.skb, GFP_ATOMIC, BROADCAST_ONE,
 				&pfk->sk, sock_net(&pfk->sk));
 	pfk->dump.skb = out_skb;
 
@@ -2679,14 +2720,18 @@ static int pfkey_spddump(struct sock *sk
 {
 	struct pfkey_sock *pfk = pfkey_sk(sk);
 
-	if (pfk->dump.dump != NULL)
+	mutex_lock(&pfk->dump_lock);
+	if (pfk->dump.dump != NULL) {
+		mutex_unlock(&pfk->dump_lock);
 		return -EBUSY;
+	}
 
 	pfk->dump.msg_version = hdr->sadb_msg_version;
 	pfk->dump.msg_portid = hdr->sadb_msg_pid;
 	pfk->dump.dump = pfkey_dump_sp;
 	pfk->dump.done = pfkey_dump_sp_done;
 	xfrm_policy_walk_init(&pfk->dump.u.policy, XFRM_POLICY_TYPE_MAIN);
+	mutex_unlock(&pfk->dump_lock);
 
 	return pfkey_do_dump(pfk);
 }
@@ -2708,7 +2753,7 @@ static int key_notify_policy_flush(const
 	hdr->sadb_msg_satype = SADB_SATYPE_UNSPEC;
 	hdr->sadb_msg_len = (sizeof(struct sadb_msg) / sizeof(uint64_t));
 	hdr->sadb_msg_reserved = 0;
-	pfkey_broadcast(skb_out, BROADCAST_ALL, NULL, c->net);
+	pfkey_broadcast(skb_out, GFP_ATOMIC, BROADCAST_ALL, NULL, c->net);
 	return 0;
 
 }
@@ -2770,7 +2815,7 @@ static int pfkey_process(struct sock *sk
 	void *ext_hdrs[SADB_EXT_MAX];
 	int err;
 
-	pfkey_broadcast(skb_clone(skb, GFP_KERNEL),
+	pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL,
 			BROADCAST_PROMISC_ONLY, NULL, sock_net(sk));
 
 	memset(ext_hdrs, 0, sizeof(ext_hdrs));
@@ -2992,7 +3037,8 @@ static int key_notify_sa_expire(struct x
 	out_hdr->sadb_msg_seq = 0;
 	out_hdr->sadb_msg_pid = 0;
 
-	pfkey_broadcast(out_skb, BROADCAST_REGISTERED, NULL, xs_net(x));
+	pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL,
+			xs_net(x));
 	return 0;
 }
 
@@ -3182,7 +3228,8 @@ static int pfkey_send_acquire(struct xfr
 		       xfrm_ctx->ctx_len);
 	}
 
-	return pfkey_broadcast(skb, BROADCAST_REGISTERED, NULL, xs_net(x));
+	return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL,
+			       xs_net(x));
 }
 
 static struct xfrm_policy *pfkey_compile_policy(struct sock *sk, int opt,
@@ -3380,7 +3427,8 @@ static int pfkey_send_new_mapping(struct
 	n_port->sadb_x_nat_t_port_port = sport;
 	n_port->sadb_x_nat_t_port_reserved = 0;
 
-	return pfkey_broadcast(skb, BROADCAST_REGISTERED, NULL, xs_net(x));
+	return pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_REGISTERED, NULL,
+			       xs_net(x));
 }
 
 #ifdef CONFIG_NET_KEY_MIGRATE
@@ -3572,7 +3620,7 @@ static int pfkey_send_migrate(const stru
 	}
 
 	/* broadcast migrate message to sockets */
-	pfkey_broadcast(skb, BROADCAST_ALL, NULL, &init_net);
+	pfkey_broadcast(skb, GFP_ATOMIC, BROADCAST_ALL, NULL, &init_net);
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_core.c linux-libre-4.9.52-gnu/net/l2tp/l2tp_core.c
--- linux-libre-4.9-gnu/net/l2tp/l2tp_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -278,7 +278,57 @@ struct l2tp_session *l2tp_session_find(s
 }
 EXPORT_SYMBOL_GPL(l2tp_session_find);
 
-struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth)
+/* Like l2tp_session_find() but takes a reference on the returned session.
+ * Optionally calls session->ref() too if do_ref is true.
+ */
+struct l2tp_session *l2tp_session_get(struct net *net,
+				      struct l2tp_tunnel *tunnel,
+				      u32 session_id, bool do_ref)
+{
+	struct hlist_head *session_list;
+	struct l2tp_session *session;
+
+	if (!tunnel) {
+		struct l2tp_net *pn = l2tp_pernet(net);
+
+		session_list = l2tp_session_id_hash_2(pn, session_id);
+
+		rcu_read_lock_bh();
+		hlist_for_each_entry_rcu(session, session_list, global_hlist) {
+			if (session->session_id == session_id) {
+				l2tp_session_inc_refcount(session);
+				if (do_ref && session->ref)
+					session->ref(session);
+				rcu_read_unlock_bh();
+
+				return session;
+			}
+		}
+		rcu_read_unlock_bh();
+
+		return NULL;
+	}
+
+	session_list = l2tp_session_id_hash(tunnel, session_id);
+	read_lock_bh(&tunnel->hlist_lock);
+	hlist_for_each_entry(session, session_list, hlist) {
+		if (session->session_id == session_id) {
+			l2tp_session_inc_refcount(session);
+			if (do_ref && session->ref)
+				session->ref(session);
+			read_unlock_bh(&tunnel->hlist_lock);
+
+			return session;
+		}
+	}
+	read_unlock_bh(&tunnel->hlist_lock);
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(l2tp_session_get);
+
+struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
+					  bool do_ref)
 {
 	int hash;
 	struct l2tp_session *session;
@@ -288,6 +338,9 @@ struct l2tp_session *l2tp_session_find_n
 	for (hash = 0; hash < L2TP_HASH_SIZE; hash++) {
 		hlist_for_each_entry(session, &tunnel->session_hlist[hash], hlist) {
 			if (++count > nth) {
+				l2tp_session_inc_refcount(session);
+				if (do_ref && session->ref)
+					session->ref(session);
 				read_unlock_bh(&tunnel->hlist_lock);
 				return session;
 			}
@@ -298,12 +351,13 @@ struct l2tp_session *l2tp_session_find_n
 
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(l2tp_session_find_nth);
+EXPORT_SYMBOL_GPL(l2tp_session_get_nth);
 
 /* Lookup a session by interface name.
  * This is very inefficient but is only used by management interfaces.
  */
-struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname)
+struct l2tp_session *l2tp_session_get_by_ifname(struct net *net, char *ifname,
+						bool do_ref)
 {
 	struct l2tp_net *pn = l2tp_pernet(net);
 	int hash;
@@ -313,7 +367,11 @@ struct l2tp_session *l2tp_session_find_b
 	for (hash = 0; hash < L2TP_HASH_SIZE_2; hash++) {
 		hlist_for_each_entry_rcu(session, &pn->l2tp_session_hlist[hash], global_hlist) {
 			if (!strcmp(session->ifname, ifname)) {
+				l2tp_session_inc_refcount(session);
+				if (do_ref && session->ref)
+					session->ref(session);
 				rcu_read_unlock_bh();
+
 				return session;
 			}
 		}
@@ -323,7 +381,49 @@ struct l2tp_session *l2tp_session_find_b
 
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(l2tp_session_find_by_ifname);
+EXPORT_SYMBOL_GPL(l2tp_session_get_by_ifname);
+
+static int l2tp_session_add_to_tunnel(struct l2tp_tunnel *tunnel,
+				      struct l2tp_session *session)
+{
+	struct l2tp_session *session_walk;
+	struct hlist_head *g_head;
+	struct hlist_head *head;
+	struct l2tp_net *pn;
+
+	head = l2tp_session_id_hash(tunnel, session->session_id);
+
+	write_lock_bh(&tunnel->hlist_lock);
+	hlist_for_each_entry(session_walk, head, hlist)
+		if (session_walk->session_id == session->session_id)
+			goto exist;
+
+	if (tunnel->version == L2TP_HDR_VER_3) {
+		pn = l2tp_pernet(tunnel->l2tp_net);
+		g_head = l2tp_session_id_hash_2(l2tp_pernet(tunnel->l2tp_net),
+						session->session_id);
+
+		spin_lock_bh(&pn->l2tp_session_hlist_lock);
+		hlist_for_each_entry(session_walk, g_head, global_hlist)
+			if (session_walk->session_id == session->session_id)
+				goto exist_glob;
+
+		hlist_add_head_rcu(&session->global_hlist, g_head);
+		spin_unlock_bh(&pn->l2tp_session_hlist_lock);
+	}
+
+	hlist_add_head(&session->hlist, head);
+	write_unlock_bh(&tunnel->hlist_lock);
+
+	return 0;
+
+exist_glob:
+	spin_unlock_bh(&pn->l2tp_session_hlist_lock);
+exist:
+	write_unlock_bh(&tunnel->hlist_lock);
+
+	return -EEXIST;
+}
 
 /* Lookup a tunnel by id
  */
@@ -633,6 +733,9 @@ discard:
  * a data (not control) frame before coming here. Fields up to the
  * session-id have already been parsed and ptr points to the data
  * after the session-id.
+ *
+ * session->ref() must have been called prior to l2tp_recv_common().
+ * session->deref() will be called automatically after skb is processed.
  */
 void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
 		      unsigned char *ptr, unsigned char *optr, u16 hdrflags,
@@ -642,14 +745,6 @@ void l2tp_recv_common(struct l2tp_sessio
 	int offset;
 	u32 ns, nr;
 
-	/* The ref count is increased since we now hold a pointer to
-	 * the session. Take care to decrement the refcnt when exiting
-	 * this function from now on...
-	 */
-	l2tp_session_inc_refcount(session);
-	if (session->ref)
-		(*session->ref)(session);
-
 	/* Parse and check optional cookie */
 	if (session->peer_cookie_len > 0) {
 		if (memcmp(ptr, &session->peer_cookie[0], session->peer_cookie_len)) {
@@ -802,8 +897,6 @@ void l2tp_recv_common(struct l2tp_sessio
 	/* Try to dequeue as many skbs from reorder_q as we can. */
 	l2tp_recv_dequeue(session);
 
-	l2tp_session_dec_refcount(session);
-
 	return;
 
 discard:
@@ -812,8 +905,6 @@ discard:
 
 	if (session->deref)
 		(*session->deref)(session);
-
-	l2tp_session_dec_refcount(session);
 }
 EXPORT_SYMBOL(l2tp_recv_common);
 
@@ -920,8 +1011,14 @@ static int l2tp_udp_recv_core(struct l2t
 	}
 
 	/* Find the session context */
-	session = l2tp_session_find(tunnel->l2tp_net, tunnel, session_id);
+	session = l2tp_session_get(tunnel->l2tp_net, tunnel, session_id, true);
 	if (!session || !session->recv_skb) {
+		if (session) {
+			if (session->deref)
+				session->deref(session);
+			l2tp_session_dec_refcount(session);
+		}
+
 		/* Not found? Pass to userspace to deal with */
 		l2tp_info(tunnel, L2TP_MSG_DATA,
 			  "%s: no session found (%u/%u). Passing up.\n",
@@ -930,6 +1027,7 @@ static int l2tp_udp_recv_core(struct l2t
 	}
 
 	l2tp_recv_common(session, skb, ptr, optr, hdrflags, length, payload_hook);
+	l2tp_session_dec_refcount(session);
 
 	return 0;
 
@@ -1736,6 +1834,7 @@ EXPORT_SYMBOL_GPL(l2tp_session_set_heade
 struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg)
 {
 	struct l2tp_session *session;
+	int err;
 
 	session = kzalloc(sizeof(struct l2tp_session) + priv_size, GFP_KERNEL);
 	if (session != NULL) {
@@ -1791,6 +1890,13 @@ struct l2tp_session *l2tp_session_create
 
 		l2tp_session_set_header_len(session, tunnel->version);
 
+		err = l2tp_session_add_to_tunnel(tunnel, session);
+		if (err) {
+			kfree(session);
+
+			return ERR_PTR(err);
+		}
+
 		/* Bump the reference count. The session context is deleted
 		 * only when this drops to zero.
 		 */
@@ -1800,28 +1906,14 @@ struct l2tp_session *l2tp_session_create
 		/* Ensure tunnel socket isn't deleted */
 		sock_hold(tunnel->sock);
 
-		/* Add session to the tunnel's hash list */
-		write_lock_bh(&tunnel->hlist_lock);
-		hlist_add_head(&session->hlist,
-			       l2tp_session_id_hash(tunnel, session_id));
-		write_unlock_bh(&tunnel->hlist_lock);
-
-		/* And to the global session list if L2TPv3 */
-		if (tunnel->version != L2TP_HDR_VER_2) {
-			struct l2tp_net *pn = l2tp_pernet(tunnel->l2tp_net);
-
-			spin_lock_bh(&pn->l2tp_session_hlist_lock);
-			hlist_add_head_rcu(&session->global_hlist,
-					   l2tp_session_id_hash_2(pn, session_id));
-			spin_unlock_bh(&pn->l2tp_session_hlist_lock);
-		}
-
 		/* Ignore management session in session count value */
 		if (session->session_id != 0)
 			atomic_inc(&l2tp_session_count);
+
+		return session;
 	}
 
-	return session;
+	return ERR_PTR(-ENOMEM);
 }
 EXPORT_SYMBOL_GPL(l2tp_session_create);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_core.h linux-libre-4.9.52-gnu/net/l2tp/l2tp_core.h
--- linux-libre-4.9-gnu/net/l2tp/l2tp_core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_core.h	2017-09-27 08:40:05.000000000 -0400
@@ -240,11 +240,16 @@ out:
 	return tunnel;
 }
 
+struct l2tp_session *l2tp_session_get(struct net *net,
+				      struct l2tp_tunnel *tunnel,
+				      u32 session_id, bool do_ref);
 struct l2tp_session *l2tp_session_find(struct net *net,
 				       struct l2tp_tunnel *tunnel,
 				       u32 session_id);
-struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth);
-struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname);
+struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
+					  bool do_ref);
+struct l2tp_session *l2tp_session_get_by_ifname(struct net *net, char *ifname,
+						bool do_ref);
 struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id);
 struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth);
 
@@ -273,6 +278,7 @@ int l2tp_xmit_skb(struct l2tp_session *s
 int l2tp_nl_register_ops(enum l2tp_pwtype pw_type,
 			 const struct l2tp_nl_cmd_ops *ops);
 void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type);
+int l2tp_ioctl(struct sock *sk, int cmd, unsigned long arg);
 
 /* Session reference counts. Incremented when code obtains a reference
  * to a session.
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_debugfs.c linux-libre-4.9.52-gnu/net/l2tp/l2tp_debugfs.c
--- linux-libre-4.9-gnu/net/l2tp/l2tp_debugfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_debugfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -53,7 +53,7 @@ static void l2tp_dfs_next_tunnel(struct
 
 static void l2tp_dfs_next_session(struct l2tp_dfs_seq_data *pd)
 {
-	pd->session = l2tp_session_find_nth(pd->tunnel, pd->session_idx);
+	pd->session = l2tp_session_get_nth(pd->tunnel, pd->session_idx, true);
 	pd->session_idx++;
 
 	if (pd->session == NULL) {
@@ -238,10 +238,14 @@ static int l2tp_dfs_seq_show(struct seq_
 	}
 
 	/* Show the tunnel or session context */
-	if (pd->session == NULL)
+	if (!pd->session) {
 		l2tp_dfs_seq_tunnel_show(m, pd->tunnel);
-	else
+	} else {
 		l2tp_dfs_seq_session_show(m, pd->session);
+		if (pd->session->deref)
+			pd->session->deref(pd->session);
+		l2tp_session_dec_refcount(pd->session);
+	}
 
 out:
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_eth.c linux-libre-4.9.52-gnu/net/l2tp/l2tp_eth.c
--- linux-libre-4.9-gnu/net/l2tp/l2tp_eth.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_eth.c	2017-09-27 08:40:05.000000000 -0400
@@ -223,12 +223,6 @@ static int l2tp_eth_create(struct net *n
 		goto out;
 	}
 
-	session = l2tp_session_find(net, tunnel, session_id);
-	if (session) {
-		rc = -EEXIST;
-		goto out;
-	}
-
 	if (cfg->ifname) {
 		dev = dev_get_by_name(net, cfg->ifname);
 		if (dev) {
@@ -242,8 +236,8 @@ static int l2tp_eth_create(struct net *n
 
 	session = l2tp_session_create(sizeof(*spriv), tunnel, session_id,
 				      peer_session_id, cfg);
-	if (!session) {
-		rc = -ENOMEM;
+	if (IS_ERR(session)) {
+		rc = PTR_ERR(session);
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_ip6.c linux-libre-4.9.52-gnu/net/l2tp/l2tp_ip6.c
--- linux-libre-4.9-gnu/net/l2tp/l2tp_ip6.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_ip6.c	2017-09-27 08:40:05.000000000 -0400
@@ -64,7 +64,7 @@ static struct sock *__l2tp_ip6_bind_look
 	struct sock *sk;
 
 	sk_for_each_bound(sk, &l2tp_ip6_bind_table) {
-		const struct in6_addr *addr = inet6_rcv_saddr(sk);
+		const struct in6_addr *sk_laddr = inet6_rcv_saddr(sk);
 		struct l2tp_ip6_sock *l2tp = l2tp_ip6_sk(sk);
 
 		if (l2tp == NULL)
@@ -72,7 +72,7 @@ static struct sock *__l2tp_ip6_bind_look
 
 		if ((l2tp->conn_id == tunnel_id) &&
 		    net_eq(sock_net(sk), net) &&
-		    (!addr || ipv6_addr_equal(addr, laddr)) &&
+		    (!sk_laddr || ipv6_addr_any(sk_laddr) || ipv6_addr_equal(sk_laddr, laddr)) &&
 		    (!sk->sk_bound_dev_if || !dif ||
 		     sk->sk_bound_dev_if == dif))
 			goto found;
@@ -156,19 +156,19 @@ static int l2tp_ip6_recv(struct sk_buff
 	}
 
 	/* Ok, this is a data packet. Lookup the session. */
-	session = l2tp_session_find(net, NULL, session_id);
-	if (session == NULL)
+	session = l2tp_session_get(net, NULL, session_id, true);
+	if (!session)
 		goto discard;
 
 	tunnel = session->tunnel;
-	if (tunnel == NULL)
-		goto discard;
+	if (!tunnel)
+		goto discard_sess;
 
 	/* Trace packet contents, if enabled */
 	if (tunnel->debug & L2TP_MSG_DATA) {
 		length = min(32u, skb->len);
 		if (!pskb_may_pull(skb, length))
-			goto discard;
+			goto discard_sess;
 
 		/* Point to L2TP header */
 		optr = ptr = skb->data;
@@ -179,6 +179,8 @@ static int l2tp_ip6_recv(struct sk_buff
 
 	l2tp_recv_common(session, skb, ptr, optr, 0, skb->len,
 			 tunnel->recv_payload_hook);
+	l2tp_session_dec_refcount(session);
+
 	return 0;
 
 pass_up:
@@ -191,9 +193,10 @@ pass_up:
 
 	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
 	tunnel = l2tp_tunnel_find(net, tunnel_id);
-	if (tunnel != NULL)
+	if (tunnel) {
 		sk = tunnel->sock;
-	else {
+		sock_hold(sk);
+	} else {
 		struct ipv6hdr *iph = ipv6_hdr(skb);
 
 		read_lock_bh(&l2tp_ip6_lock);
@@ -215,6 +218,12 @@ pass_up:
 
 	return sk_receive_skb(sk, skb, 1);
 
+discard_sess:
+	if (session->deref)
+		session->deref(session);
+	l2tp_session_dec_refcount(session);
+	goto discard;
+
 discard_put:
 	sock_put(sk);
 
@@ -729,7 +738,7 @@ static struct proto l2tp_ip6_prot = {
 	.bind		   = l2tp_ip6_bind,
 	.connect	   = l2tp_ip6_connect,
 	.disconnect	   = l2tp_ip6_disconnect,
-	.ioctl		   = udp_ioctl,
+	.ioctl		   = l2tp_ioctl,
 	.destroy	   = l2tp_ip6_destroy_sock,
 	.setsockopt	   = ipv6_setsockopt,
 	.getsockopt	   = ipv6_getsockopt,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_ip.c linux-libre-4.9.52-gnu/net/l2tp/l2tp_ip.c
--- linux-libre-4.9-gnu/net/l2tp/l2tp_ip.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_ip.c	2017-09-27 08:40:05.000000000 -0400
@@ -11,6 +11,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <asm/ioctls.h>
 #include <linux/icmp.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>
@@ -142,19 +143,19 @@ static int l2tp_ip_recv(struct sk_buff *
 	}
 
 	/* Ok, this is a data packet. Lookup the session. */
-	session = l2tp_session_find(net, NULL, session_id);
-	if (session == NULL)
+	session = l2tp_session_get(net, NULL, session_id, true);
+	if (!session)
 		goto discard;
 
 	tunnel = session->tunnel;
-	if (tunnel == NULL)
-		goto discard;
+	if (!tunnel)
+		goto discard_sess;
 
 	/* Trace packet contents, if enabled */
 	if (tunnel->debug & L2TP_MSG_DATA) {
 		length = min(32u, skb->len);
 		if (!pskb_may_pull(skb, length))
-			goto discard;
+			goto discard_sess;
 
 		/* Point to L2TP header */
 		optr = ptr = skb->data;
@@ -164,6 +165,7 @@ static int l2tp_ip_recv(struct sk_buff *
 	}
 
 	l2tp_recv_common(session, skb, ptr, optr, 0, skb->len, tunnel->recv_payload_hook);
+	l2tp_session_dec_refcount(session);
 
 	return 0;
 
@@ -177,9 +179,10 @@ pass_up:
 
 	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
 	tunnel = l2tp_tunnel_find(net, tunnel_id);
-	if (tunnel != NULL)
+	if (tunnel) {
 		sk = tunnel->sock;
-	else {
+		sock_hold(sk);
+	} else {
 		struct iphdr *iph = (struct iphdr *) skb_network_header(skb);
 
 		read_lock_bh(&l2tp_ip_lock);
@@ -201,6 +204,12 @@ pass_up:
 
 	return sk_receive_skb(sk, skb, 1);
 
+discard_sess:
+	if (session->deref)
+		session->deref(session);
+	l2tp_session_dec_refcount(session);
+	goto discard;
+
 discard_put:
 	sock_put(sk);
 
@@ -387,7 +396,7 @@ static int l2tp_ip_backlog_recv(struct s
 drop:
 	IP_INC_STATS(sock_net(sk), IPSTATS_MIB_INDISCARDS);
 	kfree_skb(skb);
-	return -1;
+	return 0;
 }
 
 /* Userspace will call sendmsg() on the tunnel socket to send L2TP
@@ -560,6 +569,30 @@ out:
 	return err ? err : copied;
 }
 
+int l2tp_ioctl(struct sock *sk, int cmd, unsigned long arg)
+{
+	struct sk_buff *skb;
+	int amount;
+
+	switch (cmd) {
+	case SIOCOUTQ:
+		amount = sk_wmem_alloc_get(sk);
+		break;
+	case SIOCINQ:
+		spin_lock_bh(&sk->sk_receive_queue.lock);
+		skb = skb_peek(&sk->sk_receive_queue);
+		amount = skb ? skb->len : 0;
+		spin_unlock_bh(&sk->sk_receive_queue.lock);
+		break;
+
+	default:
+		return -ENOIOCTLCMD;
+	}
+
+	return put_user(amount, (int __user *)arg);
+}
+EXPORT_SYMBOL(l2tp_ioctl);
+
 static struct proto l2tp_ip_prot = {
 	.name		   = "L2TP/IP",
 	.owner		   = THIS_MODULE,
@@ -568,7 +601,7 @@ static struct proto l2tp_ip_prot = {
 	.bind		   = l2tp_ip_bind,
 	.connect	   = l2tp_ip_connect,
 	.disconnect	   = l2tp_ip_disconnect,
-	.ioctl		   = udp_ioctl,
+	.ioctl		   = l2tp_ioctl,
 	.destroy	   = l2tp_ip_destroy_sock,
 	.setsockopt	   = ip_setsockopt,
 	.getsockopt	   = ip_getsockopt,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_netlink.c linux-libre-4.9.52-gnu/net/l2tp/l2tp_netlink.c
--- linux-libre-4.9-gnu/net/l2tp/l2tp_netlink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_netlink.c	2017-09-27 08:40:05.000000000 -0400
@@ -55,7 +55,8 @@ static int l2tp_nl_session_send(struct s
 /* Accessed under genl lock */
 static const struct l2tp_nl_cmd_ops *l2tp_nl_cmd_ops[__L2TP_PWTYPE_MAX];
 
-static struct l2tp_session *l2tp_nl_session_find(struct genl_info *info)
+static struct l2tp_session *l2tp_nl_session_get(struct genl_info *info,
+						bool do_ref)
 {
 	u32 tunnel_id;
 	u32 session_id;
@@ -66,14 +67,15 @@ static struct l2tp_session *l2tp_nl_sess
 
 	if (info->attrs[L2TP_ATTR_IFNAME]) {
 		ifname = nla_data(info->attrs[L2TP_ATTR_IFNAME]);
-		session = l2tp_session_find_by_ifname(net, ifname);
+		session = l2tp_session_get_by_ifname(net, ifname, do_ref);
 	} else if ((info->attrs[L2TP_ATTR_SESSION_ID]) &&
 		   (info->attrs[L2TP_ATTR_CONN_ID])) {
 		tunnel_id = nla_get_u32(info->attrs[L2TP_ATTR_CONN_ID]);
 		session_id = nla_get_u32(info->attrs[L2TP_ATTR_SESSION_ID]);
 		tunnel = l2tp_tunnel_find(net, tunnel_id);
 		if (tunnel)
-			session = l2tp_session_find(net, tunnel, session_id);
+			session = l2tp_session_get(net, tunnel, session_id,
+						   do_ref);
 	}
 
 	return session;
@@ -634,10 +636,12 @@ static int l2tp_nl_cmd_session_create(st
 			session_id, peer_session_id, &cfg);
 
 	if (ret >= 0) {
-		session = l2tp_session_find(net, tunnel, session_id);
-		if (session)
+		session = l2tp_session_get(net, tunnel, session_id, false);
+		if (session) {
 			ret = l2tp_session_notify(&l2tp_nl_family, info, session,
 						  L2TP_CMD_SESSION_CREATE);
+			l2tp_session_dec_refcount(session);
+		}
 	}
 
 out:
@@ -650,7 +654,7 @@ static int l2tp_nl_cmd_session_delete(st
 	struct l2tp_session *session;
 	u16 pw_type;
 
-	session = l2tp_nl_session_find(info);
+	session = l2tp_nl_session_get(info, true);
 	if (session == NULL) {
 		ret = -ENODEV;
 		goto out;
@@ -664,6 +668,10 @@ static int l2tp_nl_cmd_session_delete(st
 		if (l2tp_nl_cmd_ops[pw_type] && l2tp_nl_cmd_ops[pw_type]->session_delete)
 			ret = (*l2tp_nl_cmd_ops[pw_type]->session_delete)(session);
 
+	if (session->deref)
+		session->deref(session);
+	l2tp_session_dec_refcount(session);
+
 out:
 	return ret;
 }
@@ -673,7 +681,7 @@ static int l2tp_nl_cmd_session_modify(st
 	int ret = 0;
 	struct l2tp_session *session;
 
-	session = l2tp_nl_session_find(info);
+	session = l2tp_nl_session_get(info, false);
 	if (session == NULL) {
 		ret = -ENODEV;
 		goto out;
@@ -708,6 +716,8 @@ static int l2tp_nl_cmd_session_modify(st
 	ret = l2tp_session_notify(&l2tp_nl_family, info,
 				  session, L2TP_CMD_SESSION_MODIFY);
 
+	l2tp_session_dec_refcount(session);
+
 out:
 	return ret;
 }
@@ -803,29 +813,34 @@ static int l2tp_nl_cmd_session_get(struc
 	struct sk_buff *msg;
 	int ret;
 
-	session = l2tp_nl_session_find(info);
+	session = l2tp_nl_session_get(info, false);
 	if (session == NULL) {
 		ret = -ENODEV;
-		goto out;
+		goto err;
 	}
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg) {
 		ret = -ENOMEM;
-		goto out;
+		goto err_ref;
 	}
 
 	ret = l2tp_nl_session_send(msg, info->snd_portid, info->snd_seq,
 				   0, session, L2TP_CMD_SESSION_GET);
 	if (ret < 0)
-		goto err_out;
+		goto err_ref_msg;
 
-	return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
+	ret = genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
 
-err_out:
-	nlmsg_free(msg);
+	l2tp_session_dec_refcount(session);
 
-out:
+	return ret;
+
+err_ref_msg:
+	nlmsg_free(msg);
+err_ref:
+	l2tp_session_dec_refcount(session);
+err:
 	return ret;
 }
 
@@ -844,7 +859,7 @@ static int l2tp_nl_cmd_session_dump(stru
 				goto out;
 		}
 
-		session = l2tp_session_find_nth(tunnel, si);
+		session = l2tp_session_get_nth(tunnel, si, false);
 		if (session == NULL) {
 			ti++;
 			tunnel = NULL;
@@ -854,8 +869,11 @@ static int l2tp_nl_cmd_session_dump(stru
 
 		if (l2tp_nl_session_send(skb, NETLINK_CB(cb->skb).portid,
 					 cb->nlh->nlmsg_seq, NLM_F_MULTI,
-					 session, L2TP_CMD_SESSION_GET) < 0)
+					 session, L2TP_CMD_SESSION_GET) < 0) {
+			l2tp_session_dec_refcount(session);
 			break;
+		}
+		l2tp_session_dec_refcount(session);
 
 		si++;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/l2tp/l2tp_ppp.c linux-libre-4.9.52-gnu/net/l2tp/l2tp_ppp.c
--- linux-libre-4.9-gnu/net/l2tp/l2tp_ppp.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/l2tp/l2tp_ppp.c	2017-09-27 08:40:05.000000000 -0400
@@ -450,6 +450,10 @@ static void pppol2tp_session_close(struc
 static void pppol2tp_session_destruct(struct sock *sk)
 {
 	struct l2tp_session *session = sk->sk_user_data;
+
+	skb_queue_purge(&sk->sk_receive_queue);
+	skb_queue_purge(&sk->sk_write_queue);
+
 	if (session) {
 		sk->sk_user_data = NULL;
 		BUG_ON(session->magic != L2TP_SESSION_MAGIC);
@@ -488,9 +492,6 @@ static int pppol2tp_release(struct socke
 		l2tp_session_queue_purge(session);
 		sock_put(sk);
 	}
-	skb_queue_purge(&sk->sk_receive_queue);
-	skb_queue_purge(&sk->sk_write_queue);
-
 	release_sock(sk);
 
 	/* This will delete the session context via
@@ -582,6 +583,7 @@ static int pppol2tp_connect(struct socke
 	int error = 0;
 	u32 tunnel_id, peer_tunnel_id;
 	u32 session_id, peer_session_id;
+	bool drop_refcnt = false;
 	int ver = 2;
 	int fd;
 
@@ -683,36 +685,36 @@ static int pppol2tp_connect(struct socke
 	if (tunnel->peer_tunnel_id == 0)
 		tunnel->peer_tunnel_id = peer_tunnel_id;
 
-	/* Create session if it doesn't already exist. We handle the
-	 * case where a session was previously created by the netlink
-	 * interface by checking that the session doesn't already have
-	 * a socket and its tunnel socket are what we expect. If any
-	 * of those checks fail, return EEXIST to the caller.
-	 */
-	session = l2tp_session_find(sock_net(sk), tunnel, session_id);
-	if (session == NULL) {
-		/* Default MTU must allow space for UDP/L2TP/PPP
-		 * headers.
+	session = l2tp_session_get(sock_net(sk), tunnel, session_id, false);
+	if (session) {
+		drop_refcnt = true;
+		ps = l2tp_session_priv(session);
+
+		/* Using a pre-existing session is fine as long as it hasn't
+		 * been connected yet.
 		 */
-		cfg.mtu = cfg.mru = 1500 - PPPOL2TP_HEADER_OVERHEAD;
+		if (ps->sock) {
+			error = -EEXIST;
+			goto end;
+		}
 
-		/* Allocate and initialize a new session context. */
-		session = l2tp_session_create(sizeof(struct pppol2tp_session),
-					      tunnel, session_id,
-					      peer_session_id, &cfg);
-		if (session == NULL) {
-			error = -ENOMEM;
+		/* consistency checks */
+		if (ps->tunnel_sock != tunnel->sock) {
+			error = -EEXIST;
 			goto end;
 		}
 	} else {
-		ps = l2tp_session_priv(session);
-		error = -EEXIST;
-		if (ps->sock != NULL)
-			goto end;
+		/* Default MTU must allow space for UDP/L2TP/PPP headers */
+		cfg.mtu = 1500 - PPPOL2TP_HEADER_OVERHEAD;
+		cfg.mru = cfg.mtu;
 
-		/* consistency checks */
-		if (ps->tunnel_sock != tunnel->sock)
+		session = l2tp_session_create(sizeof(struct pppol2tp_session),
+					      tunnel, session_id,
+					      peer_session_id, &cfg);
+		if (IS_ERR(session)) {
+			error = PTR_ERR(session);
 			goto end;
+		}
 	}
 
 	/* Associate session with its PPPoL2TP socket */
@@ -777,6 +779,8 @@ out_no_ppp:
 		  session->name);
 
 end:
+	if (drop_refcnt)
+		l2tp_session_dec_refcount(session);
 	release_sock(sk);
 
 	return error;
@@ -804,12 +808,6 @@ static int pppol2tp_session_create(struc
 	if (tunnel->sock == NULL)
 		goto out;
 
-	/* Check that this session doesn't already exist */
-	error = -EEXIST;
-	session = l2tp_session_find(net, tunnel, session_id);
-	if (session != NULL)
-		goto out;
-
 	/* Default MTU values. */
 	if (cfg->mtu == 0)
 		cfg->mtu = 1500 - PPPOL2TP_HEADER_OVERHEAD;
@@ -817,12 +815,13 @@ static int pppol2tp_session_create(struc
 		cfg->mru = cfg->mtu;
 
 	/* Allocate and initialize a new session context. */
-	error = -ENOMEM;
 	session = l2tp_session_create(sizeof(struct pppol2tp_session),
 				      tunnel, session_id,
 				      peer_session_id, cfg);
-	if (session == NULL)
+	if (IS_ERR(session)) {
+		error = PTR_ERR(session);
 		goto out;
+	}
 
 	ps = l2tp_session_priv(session);
 	ps->tunnel_sock = tunnel->sock;
@@ -1140,11 +1139,18 @@ static int pppol2tp_tunnel_ioctl(struct
 		if (stats.session_id != 0) {
 			/* resend to session ioctl handler */
 			struct l2tp_session *session =
-				l2tp_session_find(sock_net(sk), tunnel, stats.session_id);
-			if (session != NULL)
-				err = pppol2tp_session_ioctl(session, cmd, arg);
-			else
+				l2tp_session_get(sock_net(sk), tunnel,
+						 stats.session_id, true);
+
+			if (session) {
+				err = pppol2tp_session_ioctl(session, cmd,
+							     arg);
+				if (session->deref)
+					session->deref(session);
+				l2tp_session_dec_refcount(session);
+			} else {
 				err = -EBADR;
+			}
 			break;
 		}
 #ifdef CONFIG_XFRM
@@ -1554,7 +1560,7 @@ static void pppol2tp_next_tunnel(struct
 
 static void pppol2tp_next_session(struct net *net, struct pppol2tp_seq_data *pd)
 {
-	pd->session = l2tp_session_find_nth(pd->tunnel, pd->session_idx);
+	pd->session = l2tp_session_get_nth(pd->tunnel, pd->session_idx, true);
 	pd->session_idx++;
 
 	if (pd->session == NULL) {
@@ -1681,10 +1687,14 @@ static int pppol2tp_seq_show(struct seq_
 
 	/* Show the tunnel or session context.
 	 */
-	if (pd->session == NULL)
+	if (!pd->session) {
 		pppol2tp_seq_tunnel_show(m, pd->tunnel);
-	else
+	} else {
 		pppol2tp_seq_session_show(m, pd->session);
+		if (pd->session->deref)
+			pd->session->deref(pd->session);
+		l2tp_session_dec_refcount(pd->session);
+	}
 
 out:
 	return 0;
@@ -1843,4 +1853,4 @@ MODULE_DESCRIPTION("PPP over L2TP over U
 MODULE_LICENSE("GPL");
 MODULE_VERSION(PPPOL2TP_DRV_VERSION);
 MODULE_ALIAS_NET_PF_PROTO(PF_PPPOX, PX_PROTO_OL2TP);
-MODULE_ALIAS_L2TP_PWTYPE(11);
+MODULE_ALIAS_L2TP_PWTYPE(7);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/llc/llc_conn.c linux-libre-4.9.52-gnu/net/llc/llc_conn.c
--- linux-libre-4.9-gnu/net/llc/llc_conn.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/llc/llc_conn.c	2017-09-27 08:40:05.000000000 -0400
@@ -821,7 +821,10 @@ void llc_conn_handler(struct llc_sap *sa
 		 * another trick required to cope with how the PROCOM state
 		 * machine works. -acme
 		 */
+		skb_orphan(skb);
+		sock_hold(sk);
 		skb->sk = sk;
+		skb->destructor = sock_efree;
 	}
 	if (!sock_owned_by_user(sk))
 		llc_conn_rcv(sk, skb);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/llc/llc_sap.c linux-libre-4.9.52-gnu/net/llc/llc_sap.c
--- linux-libre-4.9-gnu/net/llc/llc_sap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/llc/llc_sap.c	2017-09-27 08:40:05.000000000 -0400
@@ -290,7 +290,10 @@ static void llc_sap_rcv(struct llc_sap *
 
 	ev->type   = LLC_SAP_EV_TYPE_PDU;
 	ev->reason = 0;
+	skb_orphan(skb);
+	sock_hold(sk);
 	skb->sk = sk;
+	skb->destructor = sock_efree;
 	llc_sap_state_process(sap, skb);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/agg-rx.c linux-libre-4.9.52-gnu/net/mac80211/agg-rx.c
--- linux-libre-4.9-gnu/net/mac80211/agg-rx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/agg-rx.c	2017-09-27 08:40:05.000000000 -0400
@@ -315,11 +315,7 @@ void __ieee80211_start_rx_ba_session(str
 	mutex_lock(&sta->ampdu_mlme.mtx);
 
 	if (test_bit(tid, sta->ampdu_mlme.agg_session_valid)) {
-		tid_agg_rx = rcu_dereference_protected(
-				sta->ampdu_mlme.tid_rx[tid],
-				lockdep_is_held(&sta->ampdu_mlme.mtx));
-
-		if (tid_agg_rx->dialog_token == dialog_token) {
+		if (sta->ampdu_mlme.tid_rx_token[tid] == dialog_token) {
 			ht_dbg_ratelimited(sta->sdata,
 					   "updated AddBA Req from %pM on tid %u\n",
 					   sta->sta.addr, tid);
@@ -396,13 +392,13 @@ void __ieee80211_start_rx_ba_session(str
 	}
 
 	/* update data */
-	tid_agg_rx->dialog_token = dialog_token;
 	tid_agg_rx->ssn = start_seq_num;
 	tid_agg_rx->head_seq_num = start_seq_num;
 	tid_agg_rx->buf_size = buf_size;
 	tid_agg_rx->timeout = timeout;
 	tid_agg_rx->stored_mpdu_num = 0;
 	tid_agg_rx->auto_seq = auto_seq;
+	tid_agg_rx->started = false;
 	tid_agg_rx->reorder_buf_filtered = 0;
 	status = WLAN_STATUS_SUCCESS;
 
@@ -418,6 +414,7 @@ end:
 	if (status == WLAN_STATUS_SUCCESS) {
 		__set_bit(tid, sta->ampdu_mlme.agg_session_valid);
 		__clear_bit(tid, sta->ampdu_mlme.unexpected_agg);
+		sta->ampdu_mlme.tid_rx_token[tid] = dialog_token;
 	}
 	mutex_unlock(&sta->ampdu_mlme.mtx);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/cfg.c linux-libre-4.9.52-gnu/net/mac80211/cfg.c
--- linux-libre-4.9-gnu/net/mac80211/cfg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/cfg.c	2017-09-27 08:40:05.000000000 -0400
@@ -865,6 +865,8 @@ static int ieee80211_start_ap(struct wip
 	default:
 		return -EINVAL;
 	}
+	sdata->u.ap.req_smps = sdata->smps_mode;
+
 	sdata->needed_rx_chains = sdata->local->rx_chains;
 
 	mutex_lock(&local->mtx);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/debugfs_sta.c linux-libre-4.9.52-gnu/net/mac80211/debugfs_sta.c
--- linux-libre-4.9-gnu/net/mac80211/debugfs_sta.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/debugfs_sta.c	2017-09-27 08:40:05.000000000 -0400
@@ -205,7 +205,7 @@ static ssize_t sta_agg_status_read(struc
 		p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
 		p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx);
 		p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
-				tid_rx ? tid_rx->dialog_token : 0);
+				tid_rx ? sta->ampdu_mlme.tid_rx_token[i] : 0);
 		p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
 				tid_rx ? tid_rx->ssn : 0);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/ibss.c linux-libre-4.9.52-gnu/net/mac80211/ibss.c
--- linux-libre-4.9-gnu/net/mac80211/ibss.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/ibss.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,6 +66,8 @@ ieee80211_ibss_build_presp(struct ieee80
 		    2 + (IEEE80211_MAX_SUPP_RATES - 8) +
 		    2 + sizeof(struct ieee80211_ht_cap) +
 		    2 + sizeof(struct ieee80211_ht_operation) +
+		    2 + sizeof(struct ieee80211_vht_cap) +
+		    2 + sizeof(struct ieee80211_vht_operation) +
 		    ifibss->ie_len;
 	presp = kzalloc(sizeof(*presp) + frame_len, GFP_KERNEL);
 	if (!presp)
@@ -487,14 +489,14 @@ int ieee80211_ibss_csa_beacon(struct iee
 	struct beacon_data *presp, *old_presp;
 	struct cfg80211_bss *cbss;
 	const struct cfg80211_bss_ies *ies;
-	u16 capability = 0;
+	u16 capability = WLAN_CAPABILITY_IBSS;
 	u64 tsf;
 	int ret = 0;
 
 	sdata_assert_lock(sdata);
 
 	if (ifibss->privacy)
-		capability = WLAN_CAPABILITY_PRIVACY;
+		capability |= WLAN_CAPABILITY_PRIVACY;
 
 	cbss = cfg80211_get_bss(sdata->local->hw.wiphy, ifibss->chandef.chan,
 				ifibss->bssid, ifibss->ssid,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/iface.c linux-libre-4.9.52-gnu/net/mac80211/iface.c
--- linux-libre-4.9-gnu/net/mac80211/iface.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/iface.c	2017-09-27 08:40:05.000000000 -0400
@@ -6,6 +6,7 @@
  * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright (c) 2016        Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -726,7 +727,8 @@ int ieee80211_do_open(struct wireless_de
 	ieee80211_recalc_ps(local);
 
 	if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
-	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+	    local->ops->wake_tx_queue) {
 		/* XXX: for AP_VLAN, actually track AP queues */
 		netif_tx_start_all_queues(dev);
 	} else if (dev) {
@@ -1306,6 +1308,26 @@ static void ieee80211_iface_work(struct
 		} else if (ieee80211_is_action(mgmt->frame_control) &&
 			   mgmt->u.action.category == WLAN_CATEGORY_VHT) {
 			switch (mgmt->u.action.u.vht_group_notif.action_code) {
+			case WLAN_VHT_ACTION_OPMODE_NOTIF: {
+				struct ieee80211_rx_status *status;
+				enum nl80211_band band;
+				u8 opmode;
+
+				status = IEEE80211_SKB_RXCB(skb);
+				band = status->band;
+				opmode = mgmt->u.action.u.vht_opmode_notif.operating_mode;
+
+				mutex_lock(&local->sta_mtx);
+				sta = sta_info_get_bss(sdata, mgmt->sa);
+
+				if (sta)
+					ieee80211_vht_handle_opmode(sdata, sta,
+								    opmode,
+								    band);
+
+				mutex_unlock(&local->sta_mtx);
+				break;
+			}
 			case WLAN_VHT_ACTION_GROUPID_MGMT:
 				ieee80211_process_mu_groups(sdata, mgmt);
 				break;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/main.c linux-libre-4.9.52-gnu/net/mac80211/main.c
--- linux-libre-4.9-gnu/net/mac80211/main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/main.c	2017-09-27 08:40:05.000000000 -0400
@@ -908,12 +908,17 @@ int ieee80211_register_hw(struct ieee802
 		supp_ht = supp_ht || sband->ht_cap.ht_supported;
 		supp_vht = supp_vht || sband->vht_cap.vht_supported;
 
-		if (sband->ht_cap.ht_supported)
-			local->rx_chains =
-				max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs),
-				    local->rx_chains);
+		if (!sband->ht_cap.ht_supported)
+			continue;
 
 		/* TODO: consider VHT for RX chains, hopefully it's the same */
+		local->rx_chains =
+			max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs),
+			    local->rx_chains);
+
+		/* no need to mask, SM_PS_DISABLED has all bits set */
+		sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED <<
+			             IEEE80211_HT_CAP_SM_PS_SHIFT;
 	}
 
 	/* if low-level driver supports AP, we also support VLAN */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/mesh.c linux-libre-4.9.52-gnu/net/mac80211/mesh.c
--- linux-libre-4.9-gnu/net/mac80211/mesh.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/mesh.c	2017-09-27 08:40:05.000000000 -0400
@@ -339,7 +339,7 @@ int mesh_add_vendor_ies(struct ieee80211
 	/* fast-forward to vendor IEs */
 	offset = ieee80211_ie_split_vendor(ifmsh->ie, ifmsh->ie_len, 0);
 
-	if (offset) {
+	if (offset < ifmsh->ie_len) {
 		len = ifmsh->ie_len - offset;
 		data = ifmsh->ie + offset;
 		if (skb_tailroom(skb) < len)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/mlme.c linux-libre-4.9.52-gnu/net/mac80211/mlme.c
--- linux-libre-4.9-gnu/net/mac80211/mlme.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/mlme.c	2017-09-27 08:40:05.000000000 -0400
@@ -2510,7 +2510,7 @@ static void ieee80211_destroy_auth_data(
 }
 
 static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
-					 bool assoc)
+					 bool assoc, bool abandon)
 {
 	struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data;
 
@@ -2533,6 +2533,9 @@ static void ieee80211_destroy_assoc_data
 		mutex_lock(&sdata->local->mtx);
 		ieee80211_vif_release_channel(sdata);
 		mutex_unlock(&sdata->local->mtx);
+
+		if (abandon)
+			cfg80211_abandon_assoc(sdata->dev, assoc_data->bss);
 	}
 
 	kfree(assoc_data);
@@ -2762,7 +2765,7 @@ static void ieee80211_rx_mgmt_deauth(str
 			   bssid, reason_code,
 			   ieee80211_get_reason_code_string(reason_code));
 
-		ieee80211_destroy_assoc_data(sdata, false);
+		ieee80211_destroy_assoc_data(sdata, false, true);
 
 		cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 		return;
@@ -3167,14 +3170,14 @@ static void ieee80211_rx_mgmt_assoc_resp
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		sdata_info(sdata, "%pM denied association (code=%d)\n",
 			   mgmt->sa, status_code);
-		ieee80211_destroy_assoc_data(sdata, false);
+		ieee80211_destroy_assoc_data(sdata, false, false);
 		event.u.mlme.status = MLME_DENIED;
 		event.u.mlme.reason = status_code;
 		drv_event_callback(sdata->local, sdata, &event);
 	} else {
 		if (!ieee80211_assoc_success(sdata, bss, mgmt, len)) {
 			/* oops -- internal error -- send timeout for now */
-			ieee80211_destroy_assoc_data(sdata, false);
+			ieee80211_destroy_assoc_data(sdata, false, false);
 			cfg80211_assoc_timeout(sdata->dev, bss);
 			return;
 		}
@@ -3187,7 +3190,7 @@ static void ieee80211_rx_mgmt_assoc_resp
 		 * recalc after assoc_data is NULL but before associated
 		 * is set can cause the interface to go idle
 		 */
-		ieee80211_destroy_assoc_data(sdata, true);
+		ieee80211_destroy_assoc_data(sdata, true, false);
 
 		/* get uapsd queues configuration */
 		uapsd_queues = 0;
@@ -3886,7 +3889,7 @@ void ieee80211_sta_work(struct ieee80211
 				.u.mlme.status = MLME_TIMEOUT,
 			};
 
-			ieee80211_destroy_assoc_data(sdata, false);
+			ieee80211_destroy_assoc_data(sdata, false, false);
 			cfg80211_assoc_timeout(sdata->dev, bss);
 			drv_event_callback(sdata->local, sdata, &event);
 		}
@@ -4025,7 +4028,7 @@ void ieee80211_mgd_quiesce(struct ieee80
 					       WLAN_REASON_DEAUTH_LEAVING,
 					       false, frame_buf);
 		if (ifmgd->assoc_data)
-			ieee80211_destroy_assoc_data(sdata, false);
+			ieee80211_destroy_assoc_data(sdata, false, true);
 		if (ifmgd->auth_data)
 			ieee80211_destroy_auth_data(sdata, false);
 		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
@@ -4907,7 +4910,7 @@ int ieee80211_mgd_deauth(struct ieee8021
 					       IEEE80211_STYPE_DEAUTH,
 					       req->reason_code, tx,
 					       frame_buf);
-		ieee80211_destroy_assoc_data(sdata, false);
+		ieee80211_destroy_assoc_data(sdata, false, true);
 		ieee80211_report_disconnect(sdata, frame_buf,
 					    sizeof(frame_buf), true,
 					    req->reason_code);
@@ -4982,7 +4985,7 @@ void ieee80211_mgd_stop(struct ieee80211
 	sdata_lock(sdata);
 	if (ifmgd->assoc_data) {
 		struct cfg80211_bss *bss = ifmgd->assoc_data->bss;
-		ieee80211_destroy_assoc_data(sdata, false);
+		ieee80211_destroy_assoc_data(sdata, false, false);
 		cfg80211_assoc_timeout(sdata->dev, bss);
 	}
 	if (ifmgd->auth_data)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/pm.c linux-libre-4.9.52-gnu/net/mac80211/pm.c
--- linux-libre-4.9-gnu/net/mac80211/pm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/pm.c	2017-09-27 08:40:05.000000000 -0400
@@ -168,6 +168,7 @@ int __ieee80211_suspend(struct ieee80211
 			break;
 		}
 
+		flush_delayed_work(&sdata->dec_tailroom_needed_wk);
 		drv_remove_interface(local, sdata);
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/rx.c linux-libre-4.9.52-gnu/net/mac80211/rx.c
--- linux-libre-4.9-gnu/net/mac80211/rx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/rx.c	2017-09-27 08:40:05.000000000 -0400
@@ -4,7 +4,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007-2010	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
+ * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -208,6 +208,51 @@ ieee80211_rx_radiotap_hdrlen(struct ieee
 	return len;
 }
 
+static void ieee80211_handle_mu_mimo_mon(struct ieee80211_sub_if_data *sdata,
+					 struct sk_buff *skb,
+					 int rtap_vendor_space)
+{
+	struct {
+		struct ieee80211_hdr_3addr hdr;
+		u8 category;
+		u8 action_code;
+	} __packed action;
+
+	if (!sdata)
+		return;
+
+	BUILD_BUG_ON(sizeof(action) != IEEE80211_MIN_ACTION_SIZE + 1);
+
+	if (skb->len < rtap_vendor_space + sizeof(action) +
+		       VHT_MUMIMO_GROUPS_DATA_LEN)
+		return;
+
+	if (!is_valid_ether_addr(sdata->u.mntr.mu_follow_addr))
+		return;
+
+	skb_copy_bits(skb, rtap_vendor_space, &action, sizeof(action));
+
+	if (!ieee80211_is_action(action.hdr.frame_control))
+		return;
+
+	if (action.category != WLAN_CATEGORY_VHT)
+		return;
+
+	if (action.action_code != WLAN_VHT_ACTION_GROUPID_MGMT)
+		return;
+
+	if (!ether_addr_equal(action.hdr.addr1, sdata->u.mntr.mu_follow_addr))
+		return;
+
+	skb = skb_copy(skb, GFP_ATOMIC);
+	if (!skb)
+		return;
+
+	skb->pkt_type = IEEE80211_SDATA_QUEUE_TYPE_FRAME;
+	skb_queue_tail(&sdata->skb_queue, skb);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+}
+
 /*
  * ieee80211_add_rx_radiotap_header - add radiotap header
  *
@@ -515,7 +560,6 @@ ieee80211_rx_monitor(struct ieee80211_lo
 	struct net_device *prev_dev = NULL;
 	int present_fcs_len = 0;
 	unsigned int rtap_vendor_space = 0;
-	struct ieee80211_mgmt *mgmt;
 	struct ieee80211_sub_if_data *monitor_sdata =
 		rcu_dereference(local->monitor_sdata);
 
@@ -553,6 +597,8 @@ ieee80211_rx_monitor(struct ieee80211_lo
 		return remove_monitor_info(local, origskb, rtap_vendor_space);
 	}
 
+	ieee80211_handle_mu_mimo_mon(monitor_sdata, origskb, rtap_vendor_space);
+
 	/* room for the radiotap header based on driver features */
 	rt_hdrlen = ieee80211_rx_radiotap_hdrlen(local, status, origskb);
 	needed_headroom = rt_hdrlen - rtap_vendor_space;
@@ -618,23 +664,6 @@ ieee80211_rx_monitor(struct ieee80211_lo
 		ieee80211_rx_stats(sdata->dev, skb->len);
 	}
 
-	mgmt = (void *)skb->data;
-	if (monitor_sdata &&
-	    skb->len >= IEEE80211_MIN_ACTION_SIZE + 1 + VHT_MUMIMO_GROUPS_DATA_LEN &&
-	    ieee80211_is_action(mgmt->frame_control) &&
-	    mgmt->u.action.category == WLAN_CATEGORY_VHT &&
-	    mgmt->u.action.u.vht_group_notif.action_code == WLAN_VHT_ACTION_GROUPID_MGMT &&
-	    is_valid_ether_addr(monitor_sdata->u.mntr.mu_follow_addr) &&
-	    ether_addr_equal(mgmt->da, monitor_sdata->u.mntr.mu_follow_addr)) {
-		struct sk_buff *mu_skb = skb_copy(skb, GFP_ATOMIC);
-
-		if (mu_skb) {
-			mu_skb->pkt_type = IEEE80211_SDATA_QUEUE_TYPE_FRAME;
-			skb_queue_tail(&monitor_sdata->skb_queue, mu_skb);
-			ieee80211_queue_work(&local->hw, &monitor_sdata->work);
-		}
-	}
-
 	if (prev_dev) {
 		skb->dev = prev_dev;
 		netif_receive_skb(skb);
@@ -1034,6 +1063,18 @@ static bool ieee80211_sta_manage_reorder
 	buf_size = tid_agg_rx->buf_size;
 	head_seq_num = tid_agg_rx->head_seq_num;
 
+	/*
+	 * If the current MPDU's SN is smaller than the SSN, it shouldn't
+	 * be reordered.
+	 */
+	if (unlikely(!tid_agg_rx->started)) {
+		if (ieee80211_sn_less(mpdu_seq_num, head_seq_num)) {
+			ret = false;
+			goto out;
+		}
+		tid_agg_rx->started = true;
+	}
+
 	/* frame with out of date sequence number */
 	if (ieee80211_sn_less(mpdu_seq_num, head_seq_num)) {
 		dev_kfree_skb(skb);
@@ -1544,12 +1585,16 @@ ieee80211_rx_h_sta_process(struct ieee80
 	 */
 	if (!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS) &&
 	    !ieee80211_has_morefrags(hdr->frame_control) &&
+	    !ieee80211_is_back_req(hdr->frame_control) &&
 	    !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) &&
 	    (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
 	     rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
-	    /* PM bit is only checked in frames where it isn't reserved,
+	    /*
+	     * PM bit is only checked in frames where it isn't reserved,
 	     * in AP mode it's reserved in non-bufferable management frames
 	     * (cf. IEEE 802.11-2012 8.2.4.1.7 Power Management field)
+	     * BAR frames should be ignored as specified in
+	     * IEEE 802.11-2012 10.2.1.2.
 	     */
 	    (!ieee80211_is_mgmt(hdr->frame_control) ||
 	     ieee80211_is_bufferable_mmpdu(hdr->frame_control))) {
@@ -2426,7 +2471,8 @@ ieee80211_rx_h_mesh_fwding(struct ieee80
 		if (is_multicast_ether_addr(hdr->addr1)) {
 			mpp_addr = hdr->addr3;
 			proxied_addr = mesh_hdr->eaddr1;
-		} else if (mesh_hdr->flags & MESH_FLAGS_AE_A5_A6) {
+		} else if ((mesh_hdr->flags & MESH_FLAGS_AE) ==
+			    MESH_FLAGS_AE_A5_A6) {
 			/* has_a4 already checked in ieee80211_rx_mesh_check */
 			mpp_addr = hdr->addr4;
 			proxied_addr = mesh_hdr->eaddr2;
@@ -2877,17 +2923,10 @@ ieee80211_rx_h_action(struct ieee80211_r
 
 		switch (mgmt->u.action.u.vht_opmode_notif.action_code) {
 		case WLAN_VHT_ACTION_OPMODE_NOTIF: {
-			u8 opmode;
-
 			/* verify opmode is present */
 			if (len < IEEE80211_MIN_ACTION_SIZE + 2)
 				goto invalid;
-
-			opmode = mgmt->u.action.u.vht_opmode_notif.operating_mode;
-
-			ieee80211_vht_handle_opmode(rx->sdata, rx->sta,
-						    opmode, status->band);
-			goto handled;
+			goto queue;
 		}
 		case WLAN_VHT_ACTION_GROUPID_MGMT: {
 			if (len < IEEE80211_MIN_ACTION_SIZE + 25)
@@ -3605,6 +3644,27 @@ static bool ieee80211_accept_frame(struc
 			    !ether_addr_equal(bssid, hdr->addr1))
 				return false;
 		}
+
+		/*
+		 * 802.11-2016 Table 9-26 says that for data frames, A1 must be
+		 * the BSSID - we've checked that already but may have accepted
+		 * the wildcard (ff:ff:ff:ff:ff:ff).
+		 *
+		 * It also says:
+		 *	The BSSID of the Data frame is determined as follows:
+		 *	a) If the STA is contained within an AP or is associated
+		 *	   with an AP, the BSSID is the address currently in use
+		 *	   by the STA contained in the AP.
+		 *
+		 * So we should not accept data frames with an address that's
+		 * multicast.
+		 *
+		 * Accepting it also opens a security problem because stations
+		 * could encrypt it with the GTK and inject traffic that way.
+		 */
+		if (ieee80211_is_data(hdr->frame_control) && multicast)
+			return false;
+
 		return true;
 	case NL80211_IFTYPE_WDS:
 		if (bssid || !ieee80211_is_data(hdr->frame_control))
@@ -3887,6 +3947,7 @@ static bool ieee80211_invoke_fast_rx(str
 	stats->last_rate = sta_stats_encode_rate(status);
 
 	stats->fragments++;
+	stats->packets++;
 
 	if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
 		stats->last_signal = status->signal;
@@ -3939,21 +4000,31 @@ static bool ieee80211_invoke_fast_rx(str
 	u64_stats_update_end(&stats->syncp);
 
 	if (fast_rx->internal_forward) {
-		struct sta_info *dsta = sta_info_get(rx->sdata, skb->data);
+		struct sk_buff *xmit_skb = NULL;
+		bool multicast = is_multicast_ether_addr(skb->data);
 
-		if (dsta) {
+		if (multicast) {
+			xmit_skb = skb_copy(skb, GFP_ATOMIC);
+		} else if (sta_info_get(rx->sdata, skb->data)) {
+			xmit_skb = skb;
+			skb = NULL;
+		}
+
+		if (xmit_skb) {
 			/*
 			 * Send to wireless media and increase priority by 256
 			 * to keep the received priority instead of
 			 * reclassifying the frame (see cfg80211_classify8021d).
 			 */
-			skb->priority += 256;
-			skb->protocol = htons(ETH_P_802_3);
-			skb_reset_network_header(skb);
-			skb_reset_mac_header(skb);
-			dev_queue_xmit(skb);
-			return true;
+			xmit_skb->priority += 256;
+			xmit_skb->protocol = htons(ETH_P_802_3);
+			skb_reset_network_header(xmit_skb);
+			skb_reset_mac_header(xmit_skb);
+			dev_queue_xmit(xmit_skb);
 		}
+
+		if (!skb)
+			return true;
 	}
 
 	/* deliver to local stack */
@@ -4070,15 +4141,17 @@ static void __ieee80211_rx_handle_packet
 		     ieee80211_is_beacon(hdr->frame_control)))
 		ieee80211_scan_rx(local, skb);
 
-	if (pubsta) {
-		rx.sta = container_of(pubsta, struct sta_info, sta);
-		rx.sdata = rx.sta->sdata;
-		if (ieee80211_prepare_and_rx_handle(&rx, skb, true))
-			return;
-		goto out;
-	} else if (ieee80211_is_data(fc)) {
+	if (ieee80211_is_data(fc)) {
 		struct sta_info *sta, *prev_sta;
 
+		if (pubsta) {
+			rx.sta = container_of(pubsta, struct sta_info, sta);
+			rx.sdata = rx.sta->sdata;
+			if (ieee80211_prepare_and_rx_handle(&rx, skb, true))
+				return;
+			goto out;
+		}
+
 		prev_sta = NULL;
 
 		for_each_sta_info(local, hdr->addr2, sta, tmp) {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/sta_info.c linux-libre-4.9.52-gnu/net/mac80211/sta_info.c
--- linux-libre-4.9-gnu/net/mac80211/sta_info.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/sta_info.c	2017-09-27 08:40:05.000000000 -0400
@@ -2148,7 +2148,7 @@ void sta_set_sinfo(struct sta_info *sta,
 			struct ieee80211_sta_rx_stats *cpurxs;
 
 			cpurxs = per_cpu_ptr(sta->pcpu_rx_stats, cpu);
-			sinfo->rx_packets += cpurxs->dropped;
+			sinfo->rx_dropped_misc += cpurxs->dropped;
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/sta_info.h linux-libre-4.9.52-gnu/net/mac80211/sta_info.h
--- linux-libre-4.9-gnu/net/mac80211/sta_info.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/sta_info.h	2017-09-27 08:40:05.000000000 -0400
@@ -184,12 +184,12 @@ struct tid_ampdu_tx {
  * @ssn: Starting Sequence Number expected to be aggregated.
  * @buf_size: buffer size for incoming A-MPDUs
  * @timeout: reset timer value (in TUs).
- * @dialog_token: dialog token for aggregation session
  * @rcu_head: RCU head used for freeing this struct
  * @reorder_lock: serializes access to reorder buffer, see below.
  * @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and
  *	and ssn.
  * @removed: this session is removed (but might have been found due to RCU)
+ * @started: this session has started (head ssn or higher was received)
  *
  * This structure's lifetime is managed by RCU, assignments to
  * the array holding it must hold the aggregation mutex.
@@ -213,9 +213,9 @@ struct tid_ampdu_rx {
 	u16 ssn;
 	u16 buf_size;
 	u16 timeout;
-	u8 dialog_token;
-	bool auto_seq;
-	bool removed;
+	u8 auto_seq:1,
+	   removed:1,
+	   started:1;
 };
 
 /**
@@ -225,6 +225,7 @@ struct tid_ampdu_rx {
  *	to tid_tx[idx], which are protected by the sta spinlock)
  *	tid_start_tx is also protected by sta->lock.
  * @tid_rx: aggregation info for Rx per TID -- RCU protected
+ * @tid_rx_token: dialog tokens for valid aggregation sessions
  * @tid_rx_timer_expired: bitmap indicating on which TIDs the
  *	RX timer expired until the work for it runs
  * @tid_rx_stop_requested:  bitmap indicating which BA sessions per TID the
@@ -243,6 +244,7 @@ struct sta_ampdu_mlme {
 	struct mutex mtx;
 	/* rx */
 	struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS];
+	u8 tid_rx_token[IEEE80211_NUM_TIDS];
 	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
 	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
 	unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/status.c linux-libre-4.9.52-gnu/net/mac80211/status.c
--- linux-libre-4.9-gnu/net/mac80211/status.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/status.c	2017-09-27 08:40:05.000000000 -0400
@@ -51,7 +51,8 @@ static void ieee80211_handle_filtered_fr
 	struct ieee80211_hdr *hdr = (void *)skb->data;
 	int ac;
 
-	if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER) {
+	if (info->flags & (IEEE80211_TX_CTL_NO_PS_BUFFER |
+			   IEEE80211_TX_CTL_AMPDU)) {
 		ieee80211_free_txskb(&local->hw, skb);
 		return;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/tx.c linux-libre-4.9.52-gnu/net/mac80211/tx.c
--- linux-libre-4.9-gnu/net/mac80211/tx.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/tx.c	2017-09-27 08:40:05.000000000 -0400
@@ -3262,7 +3262,7 @@ static bool ieee80211_xmit_fast(struct i
 	int extra_head = fast_tx->hdr_len - (ETH_HLEN - 2);
 	int hw_headroom = sdata->local->hw.extra_tx_headroom;
 	struct ethhdr eth;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_tx_info *info;
 	struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
 	struct ieee80211_tx_data tx;
 	ieee80211_tx_result r;
@@ -3326,6 +3326,7 @@ static bool ieee80211_xmit_fast(struct i
 	memcpy(skb->data + fast_tx->da_offs, eth.h_dest, ETH_ALEN);
 	memcpy(skb->data + fast_tx->sa_offs, eth.h_source, ETH_ALEN);
 
+	info = IEEE80211_SKB_CB(skb);
 	memset(info, 0, sizeof(*info));
 	info->band = fast_tx->band;
 	info->control.vif = &sdata->vif;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/vht.c linux-libre-4.9.52-gnu/net/mac80211/vht.c
--- linux-libre-4.9-gnu/net/mac80211/vht.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/vht.c	2017-09-27 08:40:05.000000000 -0400
@@ -527,8 +527,10 @@ void ieee80211_vht_handle_opmode(struct
 
 	u32 changed = __ieee80211_vht_handle_opmode(sdata, sta, opmode, band);
 
-	if (changed > 0)
+	if (changed > 0) {
+		ieee80211_recalc_min_chandef(sdata);
 		rate_control_rate_update(local, sband, sta, changed);
+	}
 }
 
 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mac80211/wpa.c linux-libre-4.9.52-gnu/net/mac80211/wpa.c
--- linux-libre-4.9-gnu/net/mac80211/wpa.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mac80211/wpa.c	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,7 @@
 #include <asm/unaligned.h>
 #include <net/mac80211.h>
 #include <crypto/aes.h>
+#include <crypto/algapi.h>
 
 #include "ieee80211_i.h"
 #include "michael.h"
@@ -153,7 +154,7 @@ ieee80211_rx_h_michael_mic_verify(struct
 	data_len = skb->len - hdrlen - MICHAEL_MIC_LEN;
 	key = &rx->key->conf.key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY];
 	michael_mic(key, hdr, data, data_len, mic);
-	if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0)
+	if (crypto_memneq(mic, data + data_len, MICHAEL_MIC_LEN))
 		goto mic_fail;
 
 	/* remove Michael MIC from payload */
@@ -1047,7 +1048,7 @@ ieee80211_crypto_aes_cmac_decrypt(struct
 		bip_aad(skb, aad);
 		ieee80211_aes_cmac(key->u.aes_cmac.tfm, aad,
 				   skb->data + 24, skb->len - 24, mic);
-		if (memcmp(mic, mmie->mic, sizeof(mmie->mic)) != 0) {
+		if (crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
 			key->u.aes_cmac.icverrors++;
 			return RX_DROP_UNUSABLE;
 		}
@@ -1097,7 +1098,7 @@ ieee80211_crypto_aes_cmac_256_decrypt(st
 		bip_aad(skb, aad);
 		ieee80211_aes_cmac_256(key->u.aes_cmac.tfm, aad,
 				       skb->data + 24, skb->len - 24, mic);
-		if (memcmp(mic, mmie->mic, sizeof(mmie->mic)) != 0) {
+		if (crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
 			key->u.aes_cmac.icverrors++;
 			return RX_DROP_UNUSABLE;
 		}
@@ -1201,7 +1202,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct
 		if (ieee80211_aes_gmac(key->u.aes_gmac.tfm, aad, nonce,
 				       skb->data + 24, skb->len - 24,
 				       mic) < 0 ||
-		    memcmp(mic, mmie->mic, sizeof(mmie->mic)) != 0) {
+		    crypto_memneq(mic, mmie->mic, sizeof(mmie->mic))) {
 			key->u.aes_gmac.icverrors++;
 			return RX_DROP_UNUSABLE;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mpls/af_mpls.c linux-libre-4.9.52-gnu/net/mpls/af_mpls.c
--- linux-libre-4.9-gnu/net/mpls/af_mpls.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mpls/af_mpls.c	2017-09-27 08:40:05.000000000 -0400
@@ -98,18 +98,19 @@ bool mpls_pkt_too_big(const struct sk_bu
 }
 EXPORT_SYMBOL_GPL(mpls_pkt_too_big);
 
-static u32 mpls_multipath_hash(struct mpls_route *rt,
-			       struct sk_buff *skb, bool bos)
+static u32 mpls_multipath_hash(struct mpls_route *rt, struct sk_buff *skb)
 {
 	struct mpls_entry_decoded dec;
+	unsigned int mpls_hdr_len = 0;
 	struct mpls_shim_hdr *hdr;
 	bool eli_seen = false;
 	int label_index;
 	u32 hash = 0;
 
-	for (label_index = 0; label_index < MAX_MP_SELECT_LABELS && !bos;
+	for (label_index = 0; label_index < MAX_MP_SELECT_LABELS;
 	     label_index++) {
-		if (!pskb_may_pull(skb, sizeof(*hdr) * label_index))
+		mpls_hdr_len += sizeof(*hdr);
+		if (!pskb_may_pull(skb, mpls_hdr_len))
 			break;
 
 		/* Read and decode the current label */
@@ -134,37 +135,38 @@ static u32 mpls_multipath_hash(struct mp
 			eli_seen = true;
 		}
 
-		bos = dec.bos;
-		if (bos && pskb_may_pull(skb, sizeof(*hdr) * label_index +
-					 sizeof(struct iphdr))) {
+		if (!dec.bos)
+			continue;
+
+		/* found bottom label; does skb have room for a header? */
+		if (pskb_may_pull(skb, mpls_hdr_len + sizeof(struct iphdr))) {
 			const struct iphdr *v4hdr;
 
-			v4hdr = (const struct iphdr *)(mpls_hdr(skb) +
-						       label_index);
+			v4hdr = (const struct iphdr *)(hdr + 1);
 			if (v4hdr->version == 4) {
 				hash = jhash_3words(ntohl(v4hdr->saddr),
 						    ntohl(v4hdr->daddr),
 						    v4hdr->protocol, hash);
 			} else if (v4hdr->version == 6 &&
-				pskb_may_pull(skb, sizeof(*hdr) * label_index +
-					      sizeof(struct ipv6hdr))) {
+				   pskb_may_pull(skb, mpls_hdr_len +
+						 sizeof(struct ipv6hdr))) {
 				const struct ipv6hdr *v6hdr;
 
-				v6hdr = (const struct ipv6hdr *)(mpls_hdr(skb) +
-								label_index);
-
+				v6hdr = (const struct ipv6hdr *)(hdr + 1);
 				hash = __ipv6_addr_jhash(&v6hdr->saddr, hash);
 				hash = __ipv6_addr_jhash(&v6hdr->daddr, hash);
 				hash = jhash_1word(v6hdr->nexthdr, hash);
 			}
 		}
+
+		break;
 	}
 
 	return hash;
 }
 
 static struct mpls_nh *mpls_select_multipath(struct mpls_route *rt,
-					     struct sk_buff *skb, bool bos)
+					     struct sk_buff *skb)
 {
 	int alive = ACCESS_ONCE(rt->rt_nhn_alive);
 	u32 hash = 0;
@@ -180,7 +182,7 @@ static struct mpls_nh *mpls_select_multi
 	if (alive <= 0)
 		return NULL;
 
-	hash = mpls_multipath_hash(rt, skb, bos);
+	hash = mpls_multipath_hash(rt, skb);
 	nh_index = hash % alive;
 	if (alive == rt->rt_nhn)
 		goto out;
@@ -278,17 +280,11 @@ static int mpls_forward(struct sk_buff *
 	hdr = mpls_hdr(skb);
 	dec = mpls_entry_decode(hdr);
 
-	/* Pop the label */
-	skb_pull(skb, sizeof(*hdr));
-	skb_reset_network_header(skb);
-
-	skb_orphan(skb);
-
 	rt = mpls_route_input_rcu(net, dec.label);
 	if (!rt)
 		goto drop;
 
-	nh = mpls_select_multipath(rt, skb, dec.bos);
+	nh = mpls_select_multipath(rt, skb);
 	if (!nh)
 		goto drop;
 
@@ -297,6 +293,12 @@ static int mpls_forward(struct sk_buff *
 	if (!mpls_output_possible(out_dev))
 		goto drop;
 
+	/* Pop the label */
+	skb_pull(skb, sizeof(*hdr));
+	skb_reset_network_header(skb);
+
+	skb_orphan(skb);
+
 	if (skb_warn_if_lro(skb))
 		goto drop;
 
@@ -954,7 +956,8 @@ static void mpls_ifdown(struct net_devic
 				/* fall through */
 			case NETDEV_CHANGE:
 				nh->nh_flags |= RTNH_F_LINKDOWN;
-				ACCESS_ONCE(rt->rt_nhn_alive) = rt->rt_nhn_alive - 1;
+				if (event != NETDEV_UNREGISTER)
+					ACCESS_ONCE(rt->rt_nhn_alive) = rt->rt_nhn_alive - 1;
 				break;
 			}
 			if (event == NETDEV_UNREGISTER)
@@ -1694,6 +1697,7 @@ static void mpls_net_exit(struct net *ne
 	for (index = 0; index < platform_labels; index++) {
 		struct mpls_route *rt = rtnl_dereference(platform_label[index]);
 		RCU_INIT_POINTER(platform_label[index], NULL);
+		mpls_notify_route(net, index, rt, NULL, NULL);
 		mpls_rt_free(rt);
 	}
 	rtnl_unlock();
diff -druNp --no-dereference linux-libre-4.9-gnu/net/mpls/mpls_iptunnel.c linux-libre-4.9.52-gnu/net/mpls/mpls_iptunnel.c
--- linux-libre-4.9-gnu/net/mpls/mpls_iptunnel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/mpls/mpls_iptunnel.c	2017-09-27 08:40:05.000000000 -0400
@@ -218,6 +218,7 @@ static const struct lwtunnel_encap_ops m
 	.fill_encap = mpls_fill_encap_info,
 	.get_encap_size = mpls_encap_nlsize,
 	.cmp_encap = mpls_encap_cmp,
+	.owner = THIS_MODULE,
 };
 
 static int __init mpls_iptunnel_init(void)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/ipvs/ip_vs_core.c linux-libre-4.9.52-gnu/net/netfilter/ipvs/ip_vs_core.c
--- linux-libre-4.9-gnu/net/netfilter/ipvs/ip_vs_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/ipvs/ip_vs_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -849,10 +849,8 @@ static int handle_response_icmp(int af,
 {
 	unsigned int verdict = NF_DROP;
 
-	if (IP_VS_FWD_METHOD(cp) != 0) {
-		pr_err("shouldn't reach here, because the box is on the "
-		       "half connection in the tun/dr module.\n");
-	}
+	if (IP_VS_FWD_METHOD(cp) != IP_VS_CONN_F_MASQ)
+		goto ignore_cp;
 
 	/* Ensure the checksum is correct */
 	if (!skb_csum_unnecessary(skb) && ip_vs_checksum_complete(skb, ihl)) {
@@ -886,6 +884,8 @@ static int handle_response_icmp(int af,
 		ip_vs_notrack(skb);
 	else
 		ip_vs_update_conntrack(skb, cp, 0);
+
+ignore_cp:
 	verdict = NF_ACCEPT;
 
 out:
@@ -1385,8 +1385,11 @@ ip_vs_out(struct netns_ipvs *ipvs, unsig
 	 */
 	cp = pp->conn_out_get(ipvs, af, skb, &iph);
 
-	if (likely(cp))
+	if (likely(cp)) {
+		if (IP_VS_FWD_METHOD(cp) != IP_VS_CONN_F_MASQ)
+			goto ignore_cp;
 		return handle_response(af, skb, pd, cp, &iph, hooknum);
+	}
 
 	/* Check for real-server-started requests */
 	if (atomic_read(&ipvs->conn_out_counter)) {
@@ -1444,9 +1447,15 @@ ip_vs_out(struct netns_ipvs *ipvs, unsig
 			}
 		}
 	}
+
+out:
 	IP_VS_DBG_PKT(12, af, pp, skb, iph.off,
 		      "ip_vs_out: packet continues traversal as normal");
 	return NF_ACCEPT;
+
+ignore_cp:
+	__ip_vs_conn_put(cp);
+	goto out;
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_conntrack_core.c linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_core.c
--- linux-libre-4.9-gnu/net/netfilter/nf_conntrack_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,29 +85,36 @@ static __read_mostly DEFINE_SPINLOCK(nf_
 static __read_mostly bool nf_conntrack_locks_all;
 
 /* every gc cycle scans at most 1/GC_MAX_BUCKETS_DIV part of table */
-#define GC_MAX_BUCKETS_DIV	64u
-/* upper bound of scan intervals */
-#define GC_INTERVAL_MAX		(2 * HZ)
-/* maximum conntracks to evict per gc run */
-#define GC_MAX_EVICTS		256u
+#define GC_MAX_BUCKETS_DIV	128u
+/* upper bound of full table scan */
+#define GC_MAX_SCAN_JIFFIES	(16u * HZ)
+/* desired ratio of entries found to be expired */
+#define GC_EVICT_RATIO	50u
 
 static struct conntrack_gc_work conntrack_gc_work;
 
 void nf_conntrack_lock(spinlock_t *lock) __acquires(lock)
 {
+	/* 1) Acquire the lock */
 	spin_lock(lock);
-	while (unlikely(nf_conntrack_locks_all)) {
-		spin_unlock(lock);
 
-		/*
-		 * Order the 'nf_conntrack_locks_all' load vs. the
-		 * spin_unlock_wait() loads below, to ensure
-		 * that 'nf_conntrack_locks_all_lock' is indeed held:
-		 */
-		smp_rmb(); /* spin_lock(&nf_conntrack_locks_all_lock) */
-		spin_unlock_wait(&nf_conntrack_locks_all_lock);
-		spin_lock(lock);
-	}
+	/* 2) read nf_conntrack_locks_all, with ACQUIRE semantics
+	 * It pairs with the smp_store_release() in nf_conntrack_all_unlock()
+	 */
+	if (likely(smp_load_acquire(&nf_conntrack_locks_all) == false))
+		return;
+
+	/* fast path failed, unlock */
+	spin_unlock(lock);
+
+	/* Slow path 1) get global lock */
+	spin_lock(&nf_conntrack_locks_all_lock);
+
+	/* Slow path 2) get the lock we want */
+	spin_lock(lock);
+
+	/* Slow path 3) release the global lock */
+	spin_unlock(&nf_conntrack_locks_all_lock);
 }
 EXPORT_SYMBOL_GPL(nf_conntrack_lock);
 
@@ -148,28 +155,27 @@ static void nf_conntrack_all_lock(void)
 	int i;
 
 	spin_lock(&nf_conntrack_locks_all_lock);
-	nf_conntrack_locks_all = true;
 
-	/*
-	 * Order the above store of 'nf_conntrack_locks_all' against
-	 * the spin_unlock_wait() loads below, such that if
-	 * nf_conntrack_lock() observes 'nf_conntrack_locks_all'
-	 * we must observe nf_conntrack_locks[] held:
-	 */
-	smp_mb(); /* spin_lock(&nf_conntrack_locks_all_lock) */
+	nf_conntrack_locks_all = true;
 
 	for (i = 0; i < CONNTRACK_LOCKS; i++) {
-		spin_unlock_wait(&nf_conntrack_locks[i]);
+		spin_lock(&nf_conntrack_locks[i]);
+
+		/* This spin_unlock provides the "release" to ensure that
+		 * nf_conntrack_locks_all==true is visible to everyone that
+		 * acquired spin_lock(&nf_conntrack_locks[]).
+		 */
+		spin_unlock(&nf_conntrack_locks[i]);
 	}
 }
 
 static void nf_conntrack_all_unlock(void)
 {
-	/*
-	 * All prior stores must be complete before we clear
+	/* All prior stores must be complete before we clear
 	 * 'nf_conntrack_locks_all'. Otherwise nf_conntrack_lock()
 	 * might observe the false value but not the entire
-	 * critical section:
+	 * critical section.
+	 * It pairs with the smp_load_acquire() in nf_conntrack_lock()
 	 */
 	smp_store_release(&nf_conntrack_locks_all, false);
 	spin_unlock(&nf_conntrack_locks_all_lock);
@@ -938,6 +944,7 @@ static noinline int early_drop(struct ne
 
 static void gc_worker(struct work_struct *work)
 {
+	unsigned int min_interval = max(HZ / GC_MAX_BUCKETS_DIV, 1u);
 	unsigned int i, goal, buckets = 0, expired_count = 0;
 	struct conntrack_gc_work *gc_work;
 	unsigned int ratio, scanned = 0;
@@ -979,8 +986,7 @@ static void gc_worker(struct work_struct
 		 */
 		rcu_read_unlock();
 		cond_resched_rcu_qs();
-	} while (++buckets < goal &&
-		 expired_count < GC_MAX_EVICTS);
+	} while (++buckets < goal);
 
 	if (gc_work->exiting)
 		return;
@@ -997,27 +1003,25 @@ static void gc_worker(struct work_struct
 	 * 1. Minimize time until we notice a stale entry
 	 * 2. Maximize scan intervals to not waste cycles
 	 *
-	 * Normally, expired_count will be 0, this increases the next_run time
-	 * to priorize 2) above.
+	 * Normally, expire ratio will be close to 0.
 	 *
-	 * As soon as a timed-out entry is found, move towards 1) and increase
-	 * the scan frequency.
-	 * In case we have lots of evictions next scan is done immediately.
+	 * As soon as a sizeable fraction of the entries have expired
+	 * increase scan frequency.
 	 */
 	ratio = scanned ? expired_count * 100 / scanned : 0;
-	if (ratio >= 90 || expired_count == GC_MAX_EVICTS) {
-		gc_work->next_gc_run = 0;
-		next_run = 0;
-	} else if (expired_count) {
-		gc_work->next_gc_run /= 2U;
-		next_run = msecs_to_jiffies(1);
+	if (ratio > GC_EVICT_RATIO) {
+		gc_work->next_gc_run = min_interval;
 	} else {
-		if (gc_work->next_gc_run < GC_INTERVAL_MAX)
-			gc_work->next_gc_run += msecs_to_jiffies(1);
+		unsigned int max = GC_MAX_SCAN_JIFFIES / GC_MAX_BUCKETS_DIV;
 
-		next_run = gc_work->next_gc_run;
+		BUILD_BUG_ON((GC_MAX_SCAN_JIFFIES / GC_MAX_BUCKETS_DIV) == 0);
+
+		gc_work->next_gc_run += min_interval;
+		if (gc_work->next_gc_run > max)
+			gc_work->next_gc_run = max;
 	}
 
+	next_run = gc_work->next_gc_run;
 	gc_work->last_bucket = i;
 	queue_delayed_work(system_long_wq, &gc_work->dwork, next_run);
 }
@@ -1025,7 +1029,7 @@ static void gc_worker(struct work_struct
 static void conntrack_gc_work_init(struct conntrack_gc_work *gc_work)
 {
 	INIT_DELAYED_WORK(&gc_work->dwork, gc_worker);
-	gc_work->next_gc_run = GC_INTERVAL_MAX;
+	gc_work->next_gc_run = HZ;
 	gc_work->exiting = false;
 }
 
@@ -1918,7 +1922,7 @@ int nf_conntrack_init_start(void)
 	nf_ct_untracked_status_or(IPS_CONFIRMED | IPS_UNTRACKED);
 
 	conntrack_gc_work_init(&conntrack_gc_work);
-	queue_delayed_work(system_long_wq, &conntrack_gc_work.dwork, GC_INTERVAL_MAX);
+	queue_delayed_work(system_long_wq, &conntrack_gc_work.dwork, HZ);
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_conntrack_extend.c linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_extend.c
--- linux-libre-4.9-gnu/net/netfilter/nf_conntrack_extend.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_extend.c	2017-09-27 08:40:05.000000000 -0400
@@ -53,7 +53,11 @@ nf_ct_ext_create(struct nf_ct_ext **ext,
 
 	rcu_read_lock();
 	t = rcu_dereference(nf_ct_ext_types[id]);
-	BUG_ON(t == NULL);
+	if (!t) {
+		rcu_read_unlock();
+		return NULL;
+	}
+
 	off = ALIGN(sizeof(struct nf_ct_ext), t->align);
 	len = off + t->len + var_alloc_len;
 	alloc_size = t->alloc_size + var_alloc_len;
@@ -88,7 +92,10 @@ void *__nf_ct_ext_add_length(struct nf_c
 
 	rcu_read_lock();
 	t = rcu_dereference(nf_ct_ext_types[id]);
-	BUG_ON(t == NULL);
+	if (!t) {
+		rcu_read_unlock();
+		return NULL;
+	}
 
 	newoff = ALIGN(old->len, t->align);
 	newlen = newoff + t->len + var_alloc_len;
@@ -175,6 +182,6 @@ void nf_ct_extend_unregister(struct nf_c
 	RCU_INIT_POINTER(nf_ct_ext_types[type->id], NULL);
 	update_alloc_size(type);
 	mutex_unlock(&nf_ct_ext_type_mutex);
-	rcu_barrier(); /* Wait for completion of call_rcu()'s */
+	synchronize_rcu();
 }
 EXPORT_SYMBOL_GPL(nf_ct_extend_unregister);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_conntrack_helper.c linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_helper.c
--- linux-libre-4.9-gnu/net/netfilter/nf_conntrack_helper.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_helper.c	2017-09-27 08:40:05.000000000 -0400
@@ -188,6 +188,26 @@ nf_ct_helper_ext_add(struct nf_conn *ct,
 }
 EXPORT_SYMBOL_GPL(nf_ct_helper_ext_add);
 
+static struct nf_conntrack_helper *
+nf_ct_lookup_helper(struct nf_conn *ct, struct net *net)
+{
+	if (!net->ct.sysctl_auto_assign_helper) {
+		if (net->ct.auto_assign_helper_warned)
+			return NULL;
+		if (!__nf_ct_helper_find(&ct->tuplehash[IP_CT_DIR_REPLY].tuple))
+			return NULL;
+		pr_info("nf_conntrack: default automatic helper assignment "
+			"has been turned off for security reasons and CT-based "
+			" firewall rule not found. Use the iptables CT target "
+			"to attach helpers instead.\n");
+		net->ct.auto_assign_helper_warned = 1;
+		return NULL;
+	}
+
+	return __nf_ct_helper_find(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
+}
+
+
 int __nf_ct_try_assign_helper(struct nf_conn *ct, struct nf_conn *tmpl,
 			      gfp_t flags)
 {
@@ -213,21 +233,14 @@ int __nf_ct_try_assign_helper(struct nf_
 	}
 
 	help = nfct_help(ct);
-	if (net->ct.sysctl_auto_assign_helper && helper == NULL) {
-		helper = __nf_ct_helper_find(&ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-		if (unlikely(!net->ct.auto_assign_helper_warned && helper)) {
-			pr_info("nf_conntrack: automatic helper "
-				"assignment is deprecated and it will "
-				"be removed soon. Use the iptables CT target "
-				"to attach helpers instead.\n");
-			net->ct.auto_assign_helper_warned = true;
-		}
-	}
 
 	if (helper == NULL) {
-		if (help)
-			RCU_INIT_POINTER(help->helper, NULL);
-		return 0;
+		helper = nf_ct_lookup_helper(ct, net);
+		if (helper == NULL) {
+			if (help)
+				RCU_INIT_POINTER(help->helper, NULL);
+			return 0;
+		}
 	}
 
 	if (help == NULL) {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_conntrack_netlink.c linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_netlink.c
--- linux-libre-4.9-gnu/net/netfilter/nf_conntrack_netlink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_netlink.c	2017-09-27 08:40:05.000000000 -0400
@@ -45,6 +45,8 @@
 #include <net/netfilter/nf_conntrack_zones.h>
 #include <net/netfilter/nf_conntrack_timestamp.h>
 #include <net/netfilter/nf_conntrack_labels.h>
+#include <net/netfilter/nf_conntrack_seqadj.h>
+#include <net/netfilter/nf_conntrack_synproxy.h>
 #ifdef CONFIG_NF_NAT_NEEDED
 #include <net/netfilter/nf_nat_core.h>
 #include <net/netfilter/nf_nat_l4proto.h>
@@ -1800,6 +1802,8 @@ ctnetlink_create_conntrack(struct net *n
 	nf_ct_tstamp_ext_add(ct, GFP_ATOMIC);
 	nf_ct_ecache_ext_add(ct, 0, 0, GFP_ATOMIC);
 	nf_ct_labels_ext_add(ct);
+	nfct_seqadj_ext_add(ct);
+	nfct_synproxy_ext_add(ct);
 
 	/* we must add conntrack extensions before confirmation. */
 	ct->status |= IPS_CONFIRMED;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_conntrack_sip.c linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_sip.c
--- linux-libre-4.9-gnu/net/netfilter/nf_conntrack_sip.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_conntrack_sip.c	2017-09-27 08:40:05.000000000 -0400
@@ -1630,8 +1630,6 @@ static int __init nf_conntrack_sip_init(
 		ports[ports_c++] = SIP_PORT;
 
 	for (i = 0; i < ports_c; i++) {
-		memset(&sip[i], 0, sizeof(sip[i]));
-
 		nf_ct_helper_init(&sip[4 * i], AF_INET, IPPROTO_UDP, "sip",
 				  SIP_PORT, ports[i], i, sip_exp_policy,
 				  SIP_EXPECT_MAX,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_log.c linux-libre-4.9.52-gnu/net/netfilter/nf_log.c
--- linux-libre-4.9-gnu/net/netfilter/nf_log.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_log.c	2017-09-27 08:40:05.000000000 -0400
@@ -13,7 +13,6 @@
 /* Internal logging interface, which relies on the real
    LOG target modules */
 
-#define NF_LOG_PREFIXLEN		128
 #define NFLOGGER_NAME_LEN		64
 
 static struct nf_logger __rcu *loggers[NFPROTO_NUMPROTO][NF_LOG_TYPE_MAX] __read_mostly;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_nat_core.c linux-libre-4.9.52-gnu/net/netfilter/nf_nat_core.c
--- linux-libre-4.9-gnu/net/netfilter/nf_nat_core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_nat_core.c	2017-09-27 08:40:05.000000000 -0400
@@ -225,20 +225,21 @@ find_appropriate_src(struct net *net,
 		.tuple = tuple,
 		.zone = zone
 	};
-	struct rhlist_head *hl;
+	struct rhlist_head *hl, *h;
 
 	hl = rhltable_lookup(&nf_nat_bysource_table, &key,
 			     nf_nat_bysource_params);
-	if (!hl)
-		return 0;
 
-	ct = container_of(hl, typeof(*ct), nat_bysource);
+	rhl_for_each_entry_rcu(ct, h, hl, nat_bysource) {
+		nf_ct_invert_tuplepr(result,
+				     &ct->tuplehash[IP_CT_DIR_REPLY].tuple);
+		result->dst = tuple->dst;
 
-	nf_ct_invert_tuplepr(result,
-			     &ct->tuplehash[IP_CT_DIR_REPLY].tuple);
-	result->dst = tuple->dst;
+		if (in_range(l3proto, l4proto, result, range))
+			return 1;
+	}
 
-	return in_range(l3proto, l4proto, result, range);
+	return 0;
 }
 
 /* For [FUTURE] fragmentation handling, we want the least-used
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nf_tables_api.c linux-libre-4.9.52-gnu/net/netfilter/nf_tables_api.c
--- linux-libre-4.9-gnu/net/netfilter/nf_tables_api.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nf_tables_api.c	2017-09-27 08:40:05.000000000 -0400
@@ -3637,10 +3637,18 @@ static int nft_add_set_elem(struct nft_c
 		goto err5;
 	}
 
+	if (set->size &&
+	    !atomic_add_unless(&set->nelems, 1, set->size + set->ndeact)) {
+		err = -ENFILE;
+		goto err6;
+	}
+
 	nft_trans_elem(trans) = elem;
 	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
 	return 0;
 
+err6:
+	set->ops->remove(set, &elem);
 err5:
 	kfree(trans);
 err4:
@@ -3687,15 +3695,9 @@ static int nf_tables_newsetelem(struct n
 		return -EBUSY;
 
 	nla_for_each_nested(attr, nla[NFTA_SET_ELEM_LIST_ELEMENTS], rem) {
-		if (set->size &&
-		    !atomic_add_unless(&set->nelems, 1, set->size + set->ndeact))
-			return -ENFILE;
-
 		err = nft_add_set_elem(&ctx, set, attr, nlh->nlmsg_flags);
-		if (err < 0) {
-			atomic_dec(&set->nelems);
+		if (err < 0)
 			break;
-		}
 	}
 	return err;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nft_log.c linux-libre-4.9.52-gnu/net/netfilter/nft_log.c
--- linux-libre-4.9-gnu/net/netfilter/nft_log.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nft_log.c	2017-09-27 08:40:05.000000000 -0400
@@ -38,7 +38,8 @@ static void nft_log_eval(const struct nf
 
 static const struct nla_policy nft_log_policy[NFTA_LOG_MAX + 1] = {
 	[NFTA_LOG_GROUP]	= { .type = NLA_U16 },
-	[NFTA_LOG_PREFIX]	= { .type = NLA_STRING },
+	[NFTA_LOG_PREFIX]	= { .type = NLA_STRING,
+				    .len = NF_LOG_PREFIXLEN - 1 },
 	[NFTA_LOG_SNAPLEN]	= { .type = NLA_U32 },
 	[NFTA_LOG_QTHRESHOLD]	= { .type = NLA_U16 },
 	[NFTA_LOG_LEVEL]	= { .type = NLA_U32 },
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/nft_set_rbtree.c linux-libre-4.9.52-gnu/net/netfilter/nft_set_rbtree.c
--- linux-libre-4.9-gnu/net/netfilter/nft_set_rbtree.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/nft_set_rbtree.c	2017-09-27 08:40:05.000000000 -0400
@@ -118,17 +118,17 @@ static int __nft_rbtree_insert(const str
 		else if (d > 0)
 			p = &parent->rb_right;
 		else {
-			if (nft_set_elem_active(&rbe->ext, genmask)) {
-				if (nft_rbtree_interval_end(rbe) &&
-				    !nft_rbtree_interval_end(new))
-					p = &parent->rb_left;
-				else if (!nft_rbtree_interval_end(rbe) &&
-					 nft_rbtree_interval_end(new))
-					p = &parent->rb_right;
-				else {
-					*ext = &rbe->ext;
-					return -EEXIST;
-				}
+			if (nft_rbtree_interval_end(rbe) &&
+			    !nft_rbtree_interval_end(new)) {
+				p = &parent->rb_left;
+			} else if (!nft_rbtree_interval_end(rbe) &&
+				   nft_rbtree_interval_end(new)) {
+				p = &parent->rb_right;
+			} else if (nft_set_elem_active(&rbe->ext, genmask)) {
+				*ext = &rbe->ext;
+				return -EEXIST;
+			} else {
+				p = &parent->rb_left;
 			}
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/netfilter/xt_TCPMSS.c linux-libre-4.9.52-gnu/net/netfilter/xt_TCPMSS.c
--- linux-libre-4.9-gnu/net/netfilter/xt_TCPMSS.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/netfilter/xt_TCPMSS.c	2017-09-27 08:40:05.000000000 -0400
@@ -104,7 +104,7 @@ tcpmss_mangle_packet(struct sk_buff *skb
 	tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff);
 	tcp_hdrlen = tcph->doff * 4;
 
-	if (len < tcp_hdrlen)
+	if (len < tcp_hdrlen || tcp_hdrlen < sizeof(struct tcphdr))
 		return -1;
 
 	if (info->mss == XT_TCPMSS_CLAMP_PMTU) {
@@ -152,6 +152,10 @@ tcpmss_mangle_packet(struct sk_buff *skb
 	if (len > tcp_hdrlen)
 		return 0;
 
+	/* tcph->doff has 4 bits, do not wrap it to 0 */
+	if (tcp_hdrlen >= 15 * 4)
+		return 0;
+
 	/*
 	 * MSS Option not found ?! add it..
 	 */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/nfc/core.c linux-libre-4.9.52-gnu/net/nfc/core.c
--- linux-libre-4.9-gnu/net/nfc/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/nfc/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -982,6 +982,8 @@ static void nfc_release(struct device *d
 			kfree(se);
 	}
 
+	ida_simple_remove(&nfc_index_ida, dev->idx);
+
 	kfree(dev);
 }
 
@@ -1056,6 +1058,7 @@ struct nfc_dev *nfc_allocate_device(stru
 				    int tx_headroom, int tx_tailroom)
 {
 	struct nfc_dev *dev;
+	int rc;
 
 	if (!ops->start_poll || !ops->stop_poll || !ops->activate_target ||
 	    !ops->deactivate_target || !ops->im_transceive)
@@ -1068,6 +1071,15 @@ struct nfc_dev *nfc_allocate_device(stru
 	if (!dev)
 		return NULL;
 
+	rc = ida_simple_get(&nfc_index_ida, 0, 0, GFP_KERNEL);
+	if (rc < 0)
+		goto err_free_dev;
+	dev->idx = rc;
+
+	dev->dev.class = &nfc_class;
+	dev_set_name(&dev->dev, "nfc%d", dev->idx);
+	device_initialize(&dev->dev);
+
 	dev->ops = ops;
 	dev->supported_protocols = supported_protocols;
 	dev->tx_headroom = tx_headroom;
@@ -1090,6 +1102,11 @@ struct nfc_dev *nfc_allocate_device(stru
 	}
 
 	return dev;
+
+err_free_dev:
+	kfree(dev);
+
+	return ERR_PTR(rc);
 }
 EXPORT_SYMBOL(nfc_allocate_device);
 
@@ -1104,14 +1121,6 @@ int nfc_register_device(struct nfc_dev *
 
 	pr_debug("dev_name=%s\n", dev_name(&dev->dev));
 
-	dev->idx = ida_simple_get(&nfc_index_ida, 0, 0, GFP_KERNEL);
-	if (dev->idx < 0)
-		return dev->idx;
-
-	dev->dev.class = &nfc_class;
-	dev_set_name(&dev->dev, "nfc%d", dev->idx);
-	device_initialize(&dev->dev);
-
 	mutex_lock(&nfc_devlist_mutex);
 	nfc_devlist_generation++;
 	rc = device_add(&dev->dev);
@@ -1149,12 +1158,10 @@ EXPORT_SYMBOL(nfc_register_device);
  */
 void nfc_unregister_device(struct nfc_dev *dev)
 {
-	int rc, id;
+	int rc;
 
 	pr_debug("dev_name=%s\n", dev_name(&dev->dev));
 
-	id = dev->idx;
-
 	if (dev->rfkill) {
 		rfkill_unregister(dev->rfkill);
 		rfkill_destroy(dev->rfkill);
@@ -1179,8 +1186,6 @@ void nfc_unregister_device(struct nfc_de
 	nfc_devlist_generation++;
 	device_del(&dev->dev);
 	mutex_unlock(&nfc_devlist_mutex);
-
-	ida_simple_remove(&nfc_index_ida, id);
 }
 EXPORT_SYMBOL(nfc_unregister_device);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/nfc/llcp_sock.c linux-libre-4.9.52-gnu/net/nfc/llcp_sock.c
--- linux-libre-4.9-gnu/net/nfc/llcp_sock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/nfc/llcp_sock.c	2017-09-27 08:40:05.000000000 -0400
@@ -76,7 +76,8 @@ static int llcp_sock_bind(struct socket
 	struct sockaddr_nfc_llcp llcp_addr;
 	int len, ret = 0;
 
-	if (!addr || addr->sa_family != AF_NFC)
+	if (!addr || alen < offsetofend(struct sockaddr, sa_family) ||
+	    addr->sa_family != AF_NFC)
 		return -EINVAL;
 
 	pr_debug("sk %p addr %p family %d\n", sk, addr, addr->sa_family);
@@ -150,7 +151,8 @@ static int llcp_raw_sock_bind(struct soc
 	struct sockaddr_nfc_llcp llcp_addr;
 	int len, ret = 0;
 
-	if (!addr || addr->sa_family != AF_NFC)
+	if (!addr || alen < offsetofend(struct sockaddr, sa_family) ||
+	    addr->sa_family != AF_NFC)
 		return -EINVAL;
 
 	pr_debug("sk %p addr %p family %d\n", sk, addr, addr->sa_family);
@@ -661,8 +663,7 @@ static int llcp_sock_connect(struct sock
 
 	pr_debug("sock %p sk %p flags 0x%x\n", sock, sk, flags);
 
-	if (!addr || len < sizeof(struct sockaddr_nfc) ||
-	    addr->sa_family != AF_NFC)
+	if (!addr || len < sizeof(*addr) || addr->sa_family != AF_NFC)
 		return -EINVAL;
 
 	if (addr->service_name_len == 0 && addr->dsap == 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/nfc/nci/core.c linux-libre-4.9.52-gnu/net/nfc/nci/core.c
--- linux-libre-4.9-gnu/net/nfc/nci/core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/nfc/nci/core.c	2017-09-27 08:40:05.000000000 -0400
@@ -1173,8 +1173,7 @@ struct nci_dev *nci_allocate_device(stru
 	return ndev;
 
 free_nfc:
-	kfree(ndev->nfc_dev);
-
+	nfc_free_device(ndev->nfc_dev);
 free_nci:
 	kfree(ndev);
 	return NULL;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/nfc/netlink.c linux-libre-4.9.52-gnu/net/nfc/netlink.c
--- linux-libre-4.9-gnu/net/nfc/netlink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/nfc/netlink.c	2017-09-27 08:40:05.000000000 -0400
@@ -910,7 +910,9 @@ static int nfc_genl_activate_target(stru
 	u32 device_idx, target_idx, protocol;
 	int rc;
 
-	if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+	    !info->attrs[NFC_ATTR_TARGET_INDEX] ||
+	    !info->attrs[NFC_ATTR_PROTOCOLS])
 		return -EINVAL;
 
 	device_idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/openvswitch/actions.c linux-libre-4.9.52-gnu/net/openvswitch/actions.c
--- linux-libre-4.9-gnu/net/openvswitch/actions.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/openvswitch/actions.c	2017-09-27 08:40:05.000000000 -0400
@@ -1240,6 +1240,7 @@ int ovs_execute_actions(struct datapath
 		goto out;
 	}
 
+	OVS_CB(skb)->acts_origlen = acts->orig_len;
 	err = do_execute_actions(dp, skb, key,
 				 acts->actions, acts->actions_len);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/openvswitch/conntrack.c linux-libre-4.9.52-gnu/net/openvswitch/conntrack.c
--- linux-libre-4.9-gnu/net/openvswitch/conntrack.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/openvswitch/conntrack.c	2017-09-27 08:40:05.000000000 -0400
@@ -367,7 +367,6 @@ static int handle_fragments(struct net *
 	} else if (key->eth.type == htons(ETH_P_IPV6)) {
 		enum ip6_defrag_users user = IP6_DEFRAG_CONNTRACK_IN + zone;
 
-		skb_orphan(skb);
 		memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm));
 		err = nf_ct_frag6_gather(net, skb, user);
 		if (err) {
@@ -514,7 +513,7 @@ static int ovs_ct_nat_execute(struct sk_
 	int hooknum, nh_off, err = NF_ACCEPT;
 
 	nh_off = skb_network_offset(skb);
-	skb_pull(skb, nh_off);
+	skb_pull_rcsum(skb, nh_off);
 
 	/* See HOOK2MANIP(). */
 	if (maniptype == NF_NAT_MANIP_SRC)
@@ -579,6 +578,7 @@ static int ovs_ct_nat_execute(struct sk_
 	err = nf_nat_packet(ct, ctinfo, hooknum, skb);
 push:
 	skb_push(skb, nh_off);
+	skb_postpush_rcsum(skb, skb->data, nh_off);
 
 	return err;
 }
@@ -890,7 +890,7 @@ int ovs_ct_execute(struct net *net, stru
 
 	/* The conntrack module expects to be working at L3. */
 	nh_ofs = skb_network_offset(skb);
-	skb_pull(skb, nh_ofs);
+	skb_pull_rcsum(skb, nh_ofs);
 
 	if (key->ip.frag != OVS_FRAG_TYPE_NONE) {
 		err = handle_fragments(net, key, info->zone.id, skb);
@@ -904,6 +904,7 @@ int ovs_ct_execute(struct net *net, stru
 		err = ovs_ct_lookup(net, key, info, skb);
 
 	skb_push(skb, nh_ofs);
+	skb_postpush_rcsum(skb, skb->data, nh_ofs);
 	if (err)
 		kfree_skb(skb);
 	return err;
@@ -1087,8 +1088,8 @@ static int parse_ct(const struct nlattr
 
 	nla_for_each_nested(a, attr, rem) {
 		int type = nla_type(a);
-		int maxlen = ovs_ct_attr_lens[type].maxlen;
-		int minlen = ovs_ct_attr_lens[type].minlen;
+		int maxlen;
+		int minlen;
 
 		if (type > OVS_CT_ATTR_MAX) {
 			OVS_NLERR(log,
@@ -1096,6 +1097,9 @@ static int parse_ct(const struct nlattr
 				  type, OVS_CT_ATTR_MAX);
 			return -EINVAL;
 		}
+
+		maxlen = ovs_ct_attr_lens[type].maxlen;
+		minlen = ovs_ct_attr_lens[type].minlen;
 		if (nla_len(a) < minlen || nla_len(a) > maxlen) {
 			OVS_NLERR(log,
 				  "Conntrack attr type has unexpected length (type=%d, length=%d, expected=%d)",
diff -druNp --no-dereference linux-libre-4.9-gnu/net/openvswitch/datapath.c linux-libre-4.9.52-gnu/net/openvswitch/datapath.c
--- linux-libre-4.9-gnu/net/openvswitch/datapath.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/openvswitch/datapath.c	2017-09-27 08:40:05.000000000 -0400
@@ -383,7 +383,7 @@ static int queue_gso_packets(struct data
 }
 
 static size_t upcall_msg_size(const struct dp_upcall_info *upcall_info,
-			      unsigned int hdrlen)
+			      unsigned int hdrlen, int actions_attrlen)
 {
 	size_t size = NLMSG_ALIGN(sizeof(struct ovs_header))
 		+ nla_total_size(hdrlen) /* OVS_PACKET_ATTR_PACKET */
@@ -400,7 +400,7 @@ static size_t upcall_msg_size(const stru
 
 	/* OVS_PACKET_ATTR_ACTIONS */
 	if (upcall_info->actions_len)
-		size += nla_total_size(upcall_info->actions_len);
+		size += nla_total_size(actions_attrlen);
 
 	/* OVS_PACKET_ATTR_MRU */
 	if (upcall_info->mru)
@@ -467,7 +467,8 @@ static int queue_userspace_packet(struct
 	else
 		hlen = skb->len;
 
-	len = upcall_msg_size(upcall_info, hlen - cutlen);
+	len = upcall_msg_size(upcall_info, hlen - cutlen,
+			      OVS_CB(skb)->acts_origlen);
 	user_skb = genlmsg_new(len, GFP_ATOMIC);
 	if (!user_skb) {
 		err = -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/openvswitch/datapath.h linux-libre-4.9.52-gnu/net/openvswitch/datapath.h
--- linux-libre-4.9-gnu/net/openvswitch/datapath.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/openvswitch/datapath.h	2017-09-27 08:40:05.000000000 -0400
@@ -100,12 +100,14 @@ struct datapath {
  * @input_vport: The original vport packet came in on. This value is cached
  * when a packet is received by OVS.
  * @mru: The maximum received fragement size; 0 if the packet is not
+ * @acts_origlen: The netlink size of the flow actions applied to this skb.
  * @cutlen: The number of bytes from the packet end to be removed.
  * fragmented.
  */
 struct ovs_skb_cb {
 	struct vport		*input_vport;
 	u16			mru;
+	u16			acts_origlen;
 	u32			cutlen;
 };
 #define OVS_CB(skb) ((struct ovs_skb_cb *)(skb)->cb)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/openvswitch/flow_netlink.c linux-libre-4.9.52-gnu/net/openvswitch/flow_netlink.c
--- linux-libre-4.9-gnu/net/openvswitch/flow_netlink.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/openvswitch/flow_netlink.c	2017-09-27 08:40:05.000000000 -0400
@@ -588,7 +588,7 @@ static int ip_tun_from_nlattr(const stru
 			ipv4 = true;
 			break;
 		case OVS_TUNNEL_KEY_ATTR_IPV6_SRC:
-			SW_FLOW_KEY_PUT(match, tun_key.u.ipv6.dst,
+			SW_FLOW_KEY_PUT(match, tun_key.u.ipv6.src,
 					nla_get_in6_addr(a), is_mask);
 			ipv6 = true;
 			break;
@@ -649,6 +649,8 @@ static int ip_tun_from_nlattr(const stru
 			tun_flags |= TUNNEL_VXLAN_OPT;
 			opts_type = type;
 			break;
+		case OVS_TUNNEL_KEY_ATTR_PAD:
+			break;
 		default:
 			OVS_NLERR(log, "Unknown IP tunnel attribute %d",
 				  type);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/packet/af_packet.c linux-libre-4.9.52-gnu/net/packet/af_packet.c
--- linux-libre-4.9-gnu/net/packet/af_packet.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/packet/af_packet.c	2017-09-27 08:40:05.000000000 -0400
@@ -1497,6 +1497,8 @@ static void __fanout_link(struct sock *s
 	f->arr[f->num_members] = sk;
 	smp_wmb();
 	f->num_members++;
+	if (f->num_members == 1)
+		dev_add_pack(&f->prot_hook);
 	spin_unlock(&f->lock);
 }
 
@@ -1513,6 +1515,8 @@ static void __fanout_unlink(struct sock
 	BUG_ON(i >= f->num_members);
 	f->arr[i] = f->arr[f->num_members - 1];
 	f->num_members--;
+	if (f->num_members == 0)
+		__dev_remove_pack(&f->prot_hook);
 	spin_unlock(&f->lock);
 }
 
@@ -1619,6 +1623,7 @@ static void fanout_release_data(struct p
 
 static int fanout_add(struct sock *sk, u16 id, u16 type_flags)
 {
+	struct packet_rollover *rollover = NULL;
 	struct packet_sock *po = pkt_sk(sk);
 	struct packet_fanout *f, *match;
 	u8 type = type_flags & 0xff;
@@ -1641,23 +1646,28 @@ static int fanout_add(struct sock *sk, u
 		return -EINVAL;
 	}
 
+	mutex_lock(&fanout_mutex);
+
+	err = -EINVAL;
 	if (!po->running)
-		return -EINVAL;
+		goto out;
 
+	err = -EALREADY;
 	if (po->fanout)
-		return -EALREADY;
+		goto out;
 
 	if (type == PACKET_FANOUT_ROLLOVER ||
 	    (type_flags & PACKET_FANOUT_FLAG_ROLLOVER)) {
-		po->rollover = kzalloc(sizeof(*po->rollover), GFP_KERNEL);
-		if (!po->rollover)
-			return -ENOMEM;
-		atomic_long_set(&po->rollover->num, 0);
-		atomic_long_set(&po->rollover->num_huge, 0);
-		atomic_long_set(&po->rollover->num_failed, 0);
+		err = -ENOMEM;
+		rollover = kzalloc(sizeof(*rollover), GFP_KERNEL);
+		if (!rollover)
+			goto out;
+		atomic_long_set(&rollover->num, 0);
+		atomic_long_set(&rollover->num_huge, 0);
+		atomic_long_set(&rollover->num_failed, 0);
+		po->rollover = rollover;
 	}
 
-	mutex_lock(&fanout_mutex);
 	match = NULL;
 	list_for_each_entry(f, &fanout_list, list) {
 		if (f->id == id &&
@@ -1687,7 +1697,6 @@ static int fanout_add(struct sock *sk, u
 		match->prot_hook.func = packet_rcv_fanout;
 		match->prot_hook.af_packet_priv = match;
 		match->prot_hook.id_match = match_fanout_group;
-		dev_add_pack(&match->prot_hook);
 		list_add(&match->list, &fanout_list);
 	}
 	err = -EINVAL;
@@ -1704,36 +1713,40 @@ static int fanout_add(struct sock *sk, u
 		}
 	}
 out:
-	mutex_unlock(&fanout_mutex);
-	if (err) {
-		kfree(po->rollover);
+	if (err && rollover) {
+		kfree(rollover);
 		po->rollover = NULL;
 	}
+	mutex_unlock(&fanout_mutex);
 	return err;
 }
 
-static void fanout_release(struct sock *sk)
+/* If pkt_sk(sk)->fanout->sk_ref is zero, this function removes
+ * pkt_sk(sk)->fanout from fanout_list and returns pkt_sk(sk)->fanout.
+ * It is the responsibility of the caller to call fanout_release_data() and
+ * free the returned packet_fanout (after synchronize_net())
+ */
+static struct packet_fanout *fanout_release(struct sock *sk)
 {
 	struct packet_sock *po = pkt_sk(sk);
 	struct packet_fanout *f;
 
+	mutex_lock(&fanout_mutex);
 	f = po->fanout;
-	if (!f)
-		return;
+	if (f) {
+		po->fanout = NULL;
 
-	mutex_lock(&fanout_mutex);
-	po->fanout = NULL;
+		if (atomic_dec_and_test(&f->sk_ref))
+			list_del(&f->list);
+		else
+			f = NULL;
 
-	if (atomic_dec_and_test(&f->sk_ref)) {
-		list_del(&f->list);
-		dev_remove_pack(&f->prot_hook);
-		fanout_release_data(f);
-		kfree(f);
+		if (po->rollover)
+			kfree_rcu(po->rollover, rcu);
 	}
 	mutex_unlock(&fanout_mutex);
 
-	if (po->rollover)
-		kfree_rcu(po->rollover, rcu);
+	return f;
 }
 
 static bool packet_extra_vlan_len_allowed(const struct net_device *dev,
@@ -1972,7 +1985,7 @@ static int __packet_rcv_vnet(const struc
 {
 	*vnet_hdr = (const struct virtio_net_hdr) { 0 };
 
-	if (virtio_net_hdr_from_skb(skb, vnet_hdr, vio_le()))
+	if (virtio_net_hdr_from_skb(skb, vnet_hdr, vio_le(), true))
 		BUG();
 
 	return 0;
@@ -2138,6 +2151,7 @@ static int tpacket_rcv(struct sk_buff *s
 	struct timespec ts;
 	__u32 ts_status;
 	bool is_drop_n_account = false;
+	bool do_vnet = false;
 
 	/* struct tpacket{2,3}_hdr is aligned to a multiple of TPACKET_ALIGNMENT.
 	 * We may add members to them until current aligned size without forcing
@@ -2188,8 +2202,10 @@ static int tpacket_rcv(struct sk_buff *s
 		netoff = TPACKET_ALIGN(po->tp_hdrlen +
 				       (maclen < 16 ? 16 : maclen)) +
 				       po->tp_reserve;
-		if (po->has_vnet_hdr)
+		if (po->has_vnet_hdr) {
 			netoff += sizeof(struct virtio_net_hdr);
+			do_vnet = true;
+		}
 		macoff = netoff - maclen;
 	}
 	if (po->tp_version <= TPACKET_V2) {
@@ -2206,8 +2222,10 @@ static int tpacket_rcv(struct sk_buff *s
 					skb_set_owner_r(copy_skb, sk);
 			}
 			snaplen = po->rx_ring.frame_size - macoff;
-			if ((int)snaplen < 0)
+			if ((int)snaplen < 0) {
 				snaplen = 0;
+				do_vnet = false;
+			}
 		}
 	} else if (unlikely(macoff + snaplen >
 			    GET_PBDQC_FROM_RB(&po->rx_ring)->max_frame_len)) {
@@ -2220,6 +2238,7 @@ static int tpacket_rcv(struct sk_buff *s
 		if (unlikely((int)snaplen < 0)) {
 			snaplen = 0;
 			macoff = GET_PBDQC_FROM_RB(&po->rx_ring)->max_frame_len;
+			do_vnet = false;
 		}
 	}
 	spin_lock(&sk->sk_receive_queue.lock);
@@ -2245,7 +2264,7 @@ static int tpacket_rcv(struct sk_buff *s
 	}
 	spin_unlock(&sk->sk_receive_queue.lock);
 
-	if (po->has_vnet_hdr) {
+	if (do_vnet) {
 		if (__packet_rcv_vnet(skb, h.raw + macoff -
 					   sizeof(struct virtio_net_hdr))) {
 			spin_lock(&sk->sk_receive_queue.lock);
@@ -2639,13 +2658,6 @@ static int tpacket_snd(struct packet_soc
 		dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex);
 	}
 
-	sockc.tsflags = po->sk.sk_tsflags;
-	if (msg->msg_controllen) {
-		err = sock_cmsg_send(&po->sk, msg, &sockc);
-		if (unlikely(err))
-			goto out;
-	}
-
 	err = -ENXIO;
 	if (unlikely(dev == NULL))
 		goto out;
@@ -2653,6 +2665,13 @@ static int tpacket_snd(struct packet_soc
 	if (unlikely(!(dev->flags & IFF_UP)))
 		goto out_put;
 
+	sockc.tsflags = po->sk.sk_tsflags;
+	if (msg->msg_controllen) {
+		err = sock_cmsg_send(&po->sk, msg, &sockc);
+		if (unlikely(err))
+			goto out_put;
+	}
+
 	if (po->sk.sk_socket->type == SOCK_RAW)
 		reserve = dev->hard_header_len;
 	size_max = po->tx_ring.frame_size
@@ -2813,7 +2832,7 @@ static int packet_snd(struct socket *soc
 	struct virtio_net_hdr vnet_hdr = { 0 };
 	int offset = 0;
 	struct packet_sock *po = pkt_sk(sk);
-	int hlen, tlen;
+	int hlen, tlen, linear;
 	int extra_len = 0;
 
 	/*
@@ -2874,8 +2893,9 @@ static int packet_snd(struct socket *soc
 	err = -ENOBUFS;
 	hlen = LL_RESERVED_SPACE(dev);
 	tlen = dev->needed_tailroom;
-	skb = packet_alloc_skb(sk, hlen + tlen, hlen, len,
-			       __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len),
+	linear = __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len);
+	linear = max(linear, min_t(int, len, dev->hard_header_len));
+	skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, linear,
 			       msg->msg_flags & MSG_DONTWAIT, &err);
 	if (skb == NULL)
 		goto out_unlock;
@@ -2964,6 +2984,7 @@ static int packet_release(struct socket
 {
 	struct sock *sk = sock->sk;
 	struct packet_sock *po;
+	struct packet_fanout *f;
 	struct net *net;
 	union tpacket_req_u req_u;
 
@@ -3003,9 +3024,14 @@ static int packet_release(struct socket
 		packet_set_ring(sk, &req_u, 1, 1);
 	}
 
-	fanout_release(sk);
+	f = fanout_release(sk);
 
 	synchronize_net();
+
+	if (f) {
+		fanout_release_data(f);
+		kfree(f);
+	}
 	/*
 	 *	Now the socket is dead. No more input will appear.
 	 */
@@ -3120,7 +3146,7 @@ static int packet_bind_spkt(struct socke
 			    int addr_len)
 {
 	struct sock *sk = sock->sk;
-	char name[15];
+	char name[sizeof(uaddr->sa_data) + 1];
 
 	/*
 	 *	Check legality
@@ -3128,7 +3154,11 @@ static int packet_bind_spkt(struct socke
 
 	if (addr_len != sizeof(struct sockaddr))
 		return -EINVAL;
-	strlcpy(name, uaddr->sa_data, sizeof(name));
+	/* uaddr->sa_data comes from the userspace, it's not guaranteed to be
+	 * zero-terminated.
+	 */
+	memcpy(name, uaddr->sa_data, sizeof(uaddr->sa_data));
+	name[sizeof(uaddr->sa_data)] = 0;
 
 	return packet_do_bind(sk, name, 0, pkt_sk(sk)->num);
 }
@@ -3674,12 +3704,19 @@ packet_setsockopt(struct socket *sock, i
 
 		if (optlen != sizeof(val))
 			return -EINVAL;
-		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
-			return -EBUSY;
 		if (copy_from_user(&val, optval, sizeof(val)))
 			return -EFAULT;
-		po->tp_reserve = val;
-		return 0;
+		if (val > INT_MAX)
+			return -EINVAL;
+		lock_sock(sk);
+		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec) {
+			ret = -EBUSY;
+		} else {
+			po->tp_reserve = val;
+			ret = 0;
+		}
+		release_sock(sk);
+		return ret;
 	}
 	case PACKET_LOSS:
 	{
@@ -3957,7 +3994,6 @@ static int packet_notifier(struct notifi
 				}
 				if (msg == NETDEV_UNREGISTER) {
 					packet_cached_dev_reset(po);
-					fanout_release(sk);
 					po->ifindex = -1;
 					if (po->prot_hook.dev)
 						dev_put(po->prot_hook.dev);
@@ -4212,8 +4248,8 @@ static int packet_set_ring(struct sock *
 		if (unlikely(!PAGE_ALIGNED(req->tp_block_size)))
 			goto out;
 		if (po->tp_version >= TPACKET_V3 &&
-		    (int)(req->tp_block_size -
-			  BLK_PLUS_PRIV(req_u->req3.tp_sizeof_priv)) <= 0)
+		    req->tp_block_size <=
+			  BLK_PLUS_PRIV((u64)req_u->req3.tp_sizeof_priv))
 			goto out;
 		if (unlikely(req->tp_frame_size < po->tp_hdrlen +
 					po->tp_reserve))
@@ -4224,6 +4260,8 @@ static int packet_set_ring(struct sock *
 		rb->frames_per_block = req->tp_block_size / req->tp_frame_size;
 		if (unlikely(rb->frames_per_block == 0))
 			goto out;
+		if (unlikely(req->tp_block_size > UINT_MAX / req->tp_block_nr))
+			goto out;
 		if (unlikely((rb->frames_per_block * req->tp_block_nr) !=
 					req->tp_frame_nr))
 			goto out;
@@ -4295,7 +4333,7 @@ static int packet_set_ring(struct sock *
 		register_prot_hook(sk);
 	}
 	spin_unlock(&po->bind_lock);
-	if (closing && (po->tp_version > TPACKET_V2)) {
+	if (pg_vec && (po->tp_version > TPACKET_V2)) {
 		/* Because we don't support block-based V3 on tx-ring */
 		if (!tx_ring)
 			prb_shutdown_retire_blk_timer(po, rb_queue);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/rds/tcp_listen.c linux-libre-4.9.52-gnu/net/rds/tcp_listen.c
--- linux-libre-4.9-gnu/net/rds/tcp_listen.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/rds/tcp_listen.c	2017-09-27 08:40:05.000000000 -0400
@@ -129,7 +129,7 @@ int rds_tcp_accept_one(struct socket *so
 	if (!sock) /* module unload or netns delete in progress */
 		return -ENETUNREACH;
 
-	ret = sock_create_kern(sock_net(sock->sk), sock->sk->sk_family,
+	ret = sock_create_lite(sock->sk->sk_family,
 			       sock->sk->sk_type, sock->sk->sk_protocol,
 			       &new_sock);
 	if (ret)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/rxrpc/key.c linux-libre-4.9.52-gnu/net/rxrpc/key.c
--- linux-libre-4.9-gnu/net/rxrpc/key.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/rxrpc/key.c	2017-09-27 08:40:05.000000000 -0400
@@ -217,7 +217,7 @@ static int rxrpc_krb5_decode_principal(s
 				       unsigned int *_toklen)
 {
 	const __be32 *xdr = *_xdr;
-	unsigned int toklen = *_toklen, n_parts, loop, tmp;
+	unsigned int toklen = *_toklen, n_parts, loop, tmp, paddedlen;
 
 	/* there must be at least one name, and at least #names+1 length
 	 * words */
@@ -247,16 +247,16 @@ static int rxrpc_krb5_decode_principal(s
 		toklen -= 4;
 		if (tmp <= 0 || tmp > AFSTOKEN_STRING_MAX)
 			return -EINVAL;
-		if (tmp > toklen)
+		paddedlen = (tmp + 3) & ~3;
+		if (paddedlen > toklen)
 			return -EINVAL;
 		princ->name_parts[loop] = kmalloc(tmp + 1, GFP_KERNEL);
 		if (!princ->name_parts[loop])
 			return -ENOMEM;
 		memcpy(princ->name_parts[loop], xdr, tmp);
 		princ->name_parts[loop][tmp] = 0;
-		tmp = (tmp + 3) & ~3;
-		toklen -= tmp;
-		xdr += tmp >> 2;
+		toklen -= paddedlen;
+		xdr += paddedlen >> 2;
 	}
 
 	if (toklen < 4)
@@ -265,16 +265,16 @@ static int rxrpc_krb5_decode_principal(s
 	toklen -= 4;
 	if (tmp <= 0 || tmp > AFSTOKEN_K5_REALM_MAX)
 		return -EINVAL;
-	if (tmp > toklen)
+	paddedlen = (tmp + 3) & ~3;
+	if (paddedlen > toklen)
 		return -EINVAL;
 	princ->realm = kmalloc(tmp + 1, GFP_KERNEL);
 	if (!princ->realm)
 		return -ENOMEM;
 	memcpy(princ->realm, xdr, tmp);
 	princ->realm[tmp] = 0;
-	tmp = (tmp + 3) & ~3;
-	toklen -= tmp;
-	xdr += tmp >> 2;
+	toklen -= paddedlen;
+	xdr += paddedlen >> 2;
 
 	_debug("%s/...@%s", princ->name_parts[0], princ->realm);
 
@@ -293,7 +293,7 @@ static int rxrpc_krb5_decode_tagged_data
 					 unsigned int *_toklen)
 {
 	const __be32 *xdr = *_xdr;
-	unsigned int toklen = *_toklen, len;
+	unsigned int toklen = *_toklen, len, paddedlen;
 
 	/* there must be at least one tag and one length word */
 	if (toklen <= 8)
@@ -307,15 +307,17 @@ static int rxrpc_krb5_decode_tagged_data
 	toklen -= 8;
 	if (len > max_data_size)
 		return -EINVAL;
+	paddedlen = (len + 3) & ~3;
+	if (paddedlen > toklen)
+		return -EINVAL;
 	td->data_len = len;
 
 	if (len > 0) {
 		td->data = kmemdup(xdr, len, GFP_KERNEL);
 		if (!td->data)
 			return -ENOMEM;
-		len = (len + 3) & ~3;
-		toklen -= len;
-		xdr += len >> 2;
+		toklen -= paddedlen;
+		xdr += paddedlen >> 2;
 	}
 
 	_debug("tag %x len %x", td->tag, td->data_len);
@@ -387,7 +389,7 @@ static int rxrpc_krb5_decode_ticket(u8 *
 				    const __be32 **_xdr, unsigned int *_toklen)
 {
 	const __be32 *xdr = *_xdr;
-	unsigned int toklen = *_toklen, len;
+	unsigned int toklen = *_toklen, len, paddedlen;
 
 	/* there must be at least one length word */
 	if (toklen <= 4)
@@ -399,6 +401,9 @@ static int rxrpc_krb5_decode_ticket(u8 *
 	toklen -= 4;
 	if (len > AFSTOKEN_K5_TIX_MAX)
 		return -EINVAL;
+	paddedlen = (len + 3) & ~3;
+	if (paddedlen > toklen)
+		return -EINVAL;
 	*_tktlen = len;
 
 	_debug("ticket len %u", len);
@@ -407,9 +412,8 @@ static int rxrpc_krb5_decode_ticket(u8 *
 		*_ticket = kmemdup(xdr, len, GFP_KERNEL);
 		if (!*_ticket)
 			return -ENOMEM;
-		len = (len + 3) & ~3;
-		toklen -= len;
-		xdr += len >> 2;
+		toklen -= paddedlen;
+		xdr += paddedlen >> 2;
 	}
 
 	*_xdr = xdr;
@@ -552,7 +556,7 @@ static int rxrpc_preparse_xdr(struct key
 {
 	const __be32 *xdr = prep->data, *token;
 	const char *cp;
-	unsigned int len, tmp, loop, ntoken, toklen, sec_ix;
+	unsigned int len, paddedlen, loop, ntoken, toklen, sec_ix;
 	size_t datalen = prep->datalen;
 	int ret;
 
@@ -578,22 +582,21 @@ static int rxrpc_preparse_xdr(struct key
 	if (len < 1 || len > AFSTOKEN_CELL_MAX)
 		goto not_xdr;
 	datalen -= 4;
-	tmp = (len + 3) & ~3;
-	if (tmp > datalen)
+	paddedlen = (len + 3) & ~3;
+	if (paddedlen > datalen)
 		goto not_xdr;
 
 	cp = (const char *) xdr;
 	for (loop = 0; loop < len; loop++)
 		if (!isprint(cp[loop]))
 			goto not_xdr;
-	if (len < tmp)
-		for (; loop < tmp; loop++)
-			if (cp[loop])
-				goto not_xdr;
+	for (; loop < paddedlen; loop++)
+		if (cp[loop])
+			goto not_xdr;
 	_debug("cellname: [%u/%u] '%*.*s'",
-	       len, tmp, len, len, (const char *) xdr);
-	datalen -= tmp;
-	xdr += tmp >> 2;
+	       len, paddedlen, len, len, (const char *) xdr);
+	datalen -= paddedlen;
+	xdr += paddedlen >> 2;
 
 	/* get the token count */
 	if (datalen < 12)
@@ -614,10 +617,11 @@ static int rxrpc_preparse_xdr(struct key
 		sec_ix = ntohl(*xdr);
 		datalen -= 4;
 		_debug("token: [%x/%zx] %x", toklen, datalen, sec_ix);
-		if (toklen < 20 || toklen > datalen)
+		paddedlen = (toklen + 3) & ~3;
+		if (toklen < 20 || toklen > datalen || paddedlen > datalen)
 			goto not_xdr;
-		datalen -= (toklen + 3) & ~3;
-		xdr += (toklen + 3) >> 2;
+		datalen -= paddedlen;
+		xdr += paddedlen >> 2;
 
 	} while (--loop > 0);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/act_api.c linux-libre-4.9.52-gnu/net/sched/act_api.c
--- linux-libre-4.9-gnu/net/sched/act_api.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/act_api.c	2017-09-27 08:40:05.000000000 -0400
@@ -820,10 +820,8 @@ static int tca_action_flush(struct net *
 		goto out_module_put;
 
 	err = ops->walk(net, skb, &dcb, RTM_DELACTION, ops);
-	if (err < 0)
+	if (err <= 0)
 		goto out_module_put;
-	if (err == 0)
-		goto noflush_out;
 
 	nla_nest_end(skb, nest);
 
@@ -840,7 +838,6 @@ static int tca_action_flush(struct net *
 out_module_put:
 	module_put(ops->owner);
 err_out:
-noflush_out:
 	kfree_skb(skb);
 	return err;
 }
@@ -903,8 +900,6 @@ tca_action_gd(struct net *net, struct nl
 			goto err;
 		}
 		act->order = i;
-		if (event == RTM_GETACTION)
-			act->tcfa_refcnt++;
 		list_add_tail(&act->list, &actions);
 	}
 
@@ -917,7 +912,8 @@ tca_action_gd(struct net *net, struct nl
 		return ret;
 	}
 err:
-	tcf_action_destroy(&actions, 0);
+	if (event != RTM_GETACTION)
+		tcf_action_destroy(&actions, 0);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/act_connmark.c linux-libre-4.9.52-gnu/net/sched/act_connmark.c
--- linux-libre-4.9-gnu/net/sched/act_connmark.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/act_connmark.c	2017-09-27 08:40:05.000000000 -0400
@@ -113,6 +113,9 @@ static int tcf_connmark_init(struct net
 	if (ret < 0)
 		return ret;
 
+	if (!tb[TCA_CONNMARK_PARMS])
+		return -EINVAL;
+
 	parm = nla_data(tb[TCA_CONNMARK_PARMS]);
 
 	if (!tcf_hash_check(tn, parm->index, a, bind)) {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/act_ipt.c linux-libre-4.9.52-gnu/net/sched/act_ipt.c
--- linux-libre-4.9-gnu/net/sched/act_ipt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/act_ipt.c	2017-09-27 08:40:05.000000000 -0400
@@ -41,6 +41,7 @@ static int ipt_init_target(struct xt_ent
 {
 	struct xt_tgchk_param par;
 	struct xt_target *target;
+	struct ipt_entry e = {};
 	int ret = 0;
 
 	target = xt_request_find_target(AF_INET, t->u.user.name,
@@ -49,8 +50,9 @@ static int ipt_init_target(struct xt_ent
 		return PTR_ERR(target);
 
 	t->u.kernel.target = target;
+	memset(&par, 0, sizeof(par));
 	par.table     = table;
-	par.entryinfo = NULL;
+	par.entryinfo = &e;
 	par.target    = target;
 	par.targinfo  = t->data;
 	par.hook_mask = hook;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/act_skbmod.c linux-libre-4.9.52-gnu/net/sched/act_skbmod.c
--- linux-libre-4.9-gnu/net/sched/act_skbmod.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/act_skbmod.c	2017-09-27 08:40:05.000000000 -0400
@@ -228,7 +228,6 @@ static int tcf_skbmod_dump(struct sk_buf
 
 	return skb->len;
 nla_put_failure:
-	rcu_read_unlock();
 	nlmsg_trim(skb, b);
 	return -1;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/cls_api.c linux-libre-4.9.52-gnu/net/sched/cls_api.c
--- linux-libre-4.9-gnu/net/sched/cls_api.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/cls_api.c	2017-09-27 08:40:05.000000000 -0400
@@ -148,13 +148,15 @@ static int tc_ctl_tfilter(struct sk_buff
 	unsigned long cl;
 	unsigned long fh;
 	int err;
-	int tp_created = 0;
+	int tp_created;
 
 	if ((n->nlmsg_type != RTM_GETTFILTER) &&
 	    !netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 replay:
+	tp_created = 0;
+
 	err = nlmsg_parse(n, sizeof(*t), tca, TCA_MAX, NULL);
 	if (err < 0)
 		return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/cls_flower.c linux-libre-4.9.52-gnu/net/sched/cls_flower.c
--- linux-libre-4.9-gnu/net/sched/cls_flower.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/cls_flower.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,10 +149,14 @@ static int fl_classify(struct sk_buff *s
 
 		switch (ip_tunnel_info_af(info)) {
 		case AF_INET:
+			skb_key.enc_control.addr_type =
+				FLOW_DISSECTOR_KEY_IPV4_ADDRS;
 			skb_key.enc_ipv4.src = key->u.ipv4.src;
 			skb_key.enc_ipv4.dst = key->u.ipv4.dst;
 			break;
 		case AF_INET6:
+			skb_key.enc_control.addr_type =
+				FLOW_DISSECTOR_KEY_IPV6_ADDRS;
 			skb_key.enc_ipv6.src = key->u.ipv6.src;
 			skb_key.enc_ipv6.dst = key->u.ipv6.dst;
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/cls_matchall.c linux-libre-4.9.52-gnu/net/sched/cls_matchall.c
--- linux-libre-4.9-gnu/net/sched/cls_matchall.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/cls_matchall.c	2017-09-27 08:40:05.000000000 -0400
@@ -16,16 +16,11 @@
 #include <net/sch_generic.h>
 #include <net/pkt_cls.h>
 
-struct cls_mall_filter {
+struct cls_mall_head {
 	struct tcf_exts exts;
 	struct tcf_result res;
 	u32 handle;
-	struct rcu_head	rcu;
 	u32 flags;
-};
-
-struct cls_mall_head {
-	struct cls_mall_filter *filter;
 	struct rcu_head	rcu;
 };
 
@@ -33,38 +28,29 @@ static int mall_classify(struct sk_buff
 			 struct tcf_result *res)
 {
 	struct cls_mall_head *head = rcu_dereference_bh(tp->root);
-	struct cls_mall_filter *f = head->filter;
 
-	if (tc_skip_sw(f->flags))
+	if (tc_skip_sw(head->flags))
 		return -1;
 
-	return tcf_exts_exec(skb, &f->exts, res);
+	return tcf_exts_exec(skb, &head->exts, res);
 }
 
 static int mall_init(struct tcf_proto *tp)
 {
-	struct cls_mall_head *head;
-
-	head = kzalloc(sizeof(*head), GFP_KERNEL);
-	if (!head)
-		return -ENOBUFS;
-
-	rcu_assign_pointer(tp->root, head);
-
 	return 0;
 }
 
-static void mall_destroy_filter(struct rcu_head *head)
+static void mall_destroy_rcu(struct rcu_head *rcu)
 {
-	struct cls_mall_filter *f = container_of(head, struct cls_mall_filter, rcu);
-
-	tcf_exts_destroy(&f->exts);
+	struct cls_mall_head *head = container_of(rcu, struct cls_mall_head,
+						  rcu);
 
-	kfree(f);
+	tcf_exts_destroy(&head->exts);
+	kfree(head);
 }
 
 static int mall_replace_hw_filter(struct tcf_proto *tp,
-				  struct cls_mall_filter *f,
+				  struct cls_mall_head *head,
 				  unsigned long cookie)
 {
 	struct net_device *dev = tp->q->dev_queue->dev;
@@ -74,7 +60,7 @@ static int mall_replace_hw_filter(struct
 	offload.type = TC_SETUP_MATCHALL;
 	offload.cls_mall = &mall_offload;
 	offload.cls_mall->command = TC_CLSMATCHALL_REPLACE;
-	offload.cls_mall->exts = &f->exts;
+	offload.cls_mall->exts = &head->exts;
 	offload.cls_mall->cookie = cookie;
 
 	return dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol,
@@ -82,7 +68,7 @@ static int mall_replace_hw_filter(struct
 }
 
 static void mall_destroy_hw_filter(struct tcf_proto *tp,
-				   struct cls_mall_filter *f,
+				   struct cls_mall_head *head,
 				   unsigned long cookie)
 {
 	struct net_device *dev = tp->q->dev_queue->dev;
@@ -103,29 +89,20 @@ static bool mall_destroy(struct tcf_prot
 {
 	struct cls_mall_head *head = rtnl_dereference(tp->root);
 	struct net_device *dev = tp->q->dev_queue->dev;
-	struct cls_mall_filter *f = head->filter;
 
-	if (!force && f)
-		return false;
+	if (!head)
+		return true;
 
-	if (f) {
-		if (tc_should_offload(dev, tp, f->flags))
-			mall_destroy_hw_filter(tp, f, (unsigned long) f);
+	if (tc_should_offload(dev, tp, head->flags))
+		mall_destroy_hw_filter(tp, head, (unsigned long) head);
 
-		call_rcu(&f->rcu, mall_destroy_filter);
-	}
-	kfree_rcu(head, rcu);
+	call_rcu(&head->rcu, mall_destroy_rcu);
 	return true;
 }
 
 static unsigned long mall_get(struct tcf_proto *tp, u32 handle)
 {
-	struct cls_mall_head *head = rtnl_dereference(tp->root);
-	struct cls_mall_filter *f = head->filter;
-
-	if (f && f->handle == handle)
-		return (unsigned long) f;
-	return 0;
+	return 0UL;
 }
 
 static const struct nla_policy mall_policy[TCA_MATCHALL_MAX + 1] = {
@@ -134,7 +111,7 @@ static const struct nla_policy mall_poli
 };
 
 static int mall_set_parms(struct net *net, struct tcf_proto *tp,
-			  struct cls_mall_filter *f,
+			  struct cls_mall_head *head,
 			  unsigned long base, struct nlattr **tb,
 			  struct nlattr *est, bool ovr)
 {
@@ -147,11 +124,11 @@ static int mall_set_parms(struct net *ne
 		return err;
 
 	if (tb[TCA_MATCHALL_CLASSID]) {
-		f->res.classid = nla_get_u32(tb[TCA_MATCHALL_CLASSID]);
-		tcf_bind_filter(tp, &f->res, base);
+		head->res.classid = nla_get_u32(tb[TCA_MATCHALL_CLASSID]);
+		tcf_bind_filter(tp, &head->res, base);
 	}
 
-	tcf_exts_change(tp, &f->exts, &e);
+	tcf_exts_change(tp, &head->exts, &e);
 
 	return 0;
 }
@@ -162,21 +139,17 @@ static int mall_change(struct net *net,
 		       unsigned long *arg, bool ovr)
 {
 	struct cls_mall_head *head = rtnl_dereference(tp->root);
-	struct cls_mall_filter *fold = (struct cls_mall_filter *) *arg;
 	struct net_device *dev = tp->q->dev_queue->dev;
-	struct cls_mall_filter *f;
 	struct nlattr *tb[TCA_MATCHALL_MAX + 1];
+	struct cls_mall_head *new;
 	u32 flags = 0;
 	int err;
 
 	if (!tca[TCA_OPTIONS])
 		return -EINVAL;
 
-	if (head->filter)
-		return -EBUSY;
-
-	if (fold)
-		return -EINVAL;
+	if (head)
+		return -EEXIST;
 
 	err = nla_parse_nested(tb, TCA_MATCHALL_MAX,
 			       tca[TCA_OPTIONS], mall_policy);
@@ -189,23 +162,23 @@ static int mall_change(struct net *net,
 			return -EINVAL;
 	}
 
-	f = kzalloc(sizeof(*f), GFP_KERNEL);
-	if (!f)
+	new = kzalloc(sizeof(*new), GFP_KERNEL);
+	if (!new)
 		return -ENOBUFS;
 
-	tcf_exts_init(&f->exts, TCA_MATCHALL_ACT, 0);
+	tcf_exts_init(&new->exts, TCA_MATCHALL_ACT, 0);
 
 	if (!handle)
 		handle = 1;
-	f->handle = handle;
-	f->flags = flags;
+	new->handle = handle;
+	new->flags = flags;
 
-	err = mall_set_parms(net, tp, f, base, tb, tca[TCA_RATE], ovr);
+	err = mall_set_parms(net, tp, new, base, tb, tca[TCA_RATE], ovr);
 	if (err)
 		goto errout;
 
 	if (tc_should_offload(dev, tp, flags)) {
-		err = mall_replace_hw_filter(tp, f, (unsigned long) f);
+		err = mall_replace_hw_filter(tp, new, (unsigned long) new);
 		if (err) {
 			if (tc_skip_sw(flags))
 				goto errout;
@@ -214,39 +187,29 @@ static int mall_change(struct net *net,
 		}
 	}
 
-	*arg = (unsigned long) f;
-	rcu_assign_pointer(head->filter, f);
-
+	*arg = (unsigned long) head;
+	rcu_assign_pointer(tp->root, new);
+	if (head)
+		call_rcu(&head->rcu, mall_destroy_rcu);
 	return 0;
 
 errout:
-	kfree(f);
+	kfree(new);
 	return err;
 }
 
 static int mall_delete(struct tcf_proto *tp, unsigned long arg)
 {
-	struct cls_mall_head *head = rtnl_dereference(tp->root);
-	struct cls_mall_filter *f = (struct cls_mall_filter *) arg;
-	struct net_device *dev = tp->q->dev_queue->dev;
-
-	if (tc_should_offload(dev, tp, f->flags))
-		mall_destroy_hw_filter(tp, f, (unsigned long) f);
-
-	RCU_INIT_POINTER(head->filter, NULL);
-	tcf_unbind_filter(tp, &f->res);
-	call_rcu(&f->rcu, mall_destroy_filter);
-	return 0;
+	return -EOPNOTSUPP;
 }
 
 static void mall_walk(struct tcf_proto *tp, struct tcf_walker *arg)
 {
 	struct cls_mall_head *head = rtnl_dereference(tp->root);
-	struct cls_mall_filter *f = head->filter;
 
 	if (arg->count < arg->skip)
 		goto skip;
-	if (arg->fn(tp, (unsigned long) f, arg) < 0)
+	if (arg->fn(tp, (unsigned long) head, arg) < 0)
 		arg->stop = 1;
 skip:
 	arg->count++;
@@ -255,28 +218,28 @@ skip:
 static int mall_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
 		     struct sk_buff *skb, struct tcmsg *t)
 {
-	struct cls_mall_filter *f = (struct cls_mall_filter *) fh;
+	struct cls_mall_head *head = (struct cls_mall_head *) fh;
 	struct nlattr *nest;
 
-	if (!f)
+	if (!head)
 		return skb->len;
 
-	t->tcm_handle = f->handle;
+	t->tcm_handle = head->handle;
 
 	nest = nla_nest_start(skb, TCA_OPTIONS);
 	if (!nest)
 		goto nla_put_failure;
 
-	if (f->res.classid &&
-	    nla_put_u32(skb, TCA_MATCHALL_CLASSID, f->res.classid))
+	if (head->res.classid &&
+	    nla_put_u32(skb, TCA_MATCHALL_CLASSID, head->res.classid))
 		goto nla_put_failure;
 
-	if (tcf_exts_dump(skb, &f->exts))
+	if (tcf_exts_dump(skb, &head->exts))
 		goto nla_put_failure;
 
 	nla_nest_end(skb, nest);
 
-	if (tcf_exts_dump_stats(skb, &f->exts) < 0)
+	if (tcf_exts_dump_stats(skb, &head->exts) < 0)
 		goto nla_put_failure;
 
 	return skb->len;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/sch_api.c linux-libre-4.9.52-gnu/net/sched/sch_api.c
--- linux-libre-4.9-gnu/net/sched/sch_api.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/sch_api.c	2017-09-27 08:40:05.000000000 -0400
@@ -277,9 +277,6 @@ static struct Qdisc *qdisc_match_from_ro
 void qdisc_hash_add(struct Qdisc *q)
 {
 	if ((q->parent != TC_H_ROOT) && !(q->flags & TCQ_F_INGRESS)) {
-		struct Qdisc *root = qdisc_dev(q)->qdisc;
-
-		WARN_ON_ONCE(root == &noop_qdisc);
 		ASSERT_RTNL();
 		hash_add_rcu(qdisc_dev(q)->qdisc_hash, &q->hash, q->handle);
 	}
@@ -1008,6 +1005,9 @@ static struct Qdisc *qdisc_create(struct
 
 		return sch;
 	}
+	/* ops->init() failed, we call ->destroy() like qdisc_create_dflt() */
+	if (ops->destroy)
+		ops->destroy(sch);
 err_out3:
 	dev_put(dev);
 	kfree((char *) sch - sch->padded);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/sch_hhf.c linux-libre-4.9.52-gnu/net/sched/sch_hhf.c
--- linux-libre-4.9-gnu/net/sched/sch_hhf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/sch_hhf.c	2017-09-27 08:40:05.000000000 -0400
@@ -627,7 +627,9 @@ static int hhf_init(struct Qdisc *sch, s
 			q->hhf_arrays[i] = hhf_zalloc(HHF_ARRAYS_LEN *
 						      sizeof(u32));
 			if (!q->hhf_arrays[i]) {
-				hhf_destroy(sch);
+				/* Note: hhf_destroy() will be called
+				 * by our caller.
+				 */
 				return -ENOMEM;
 			}
 		}
@@ -638,7 +640,9 @@ static int hhf_init(struct Qdisc *sch, s
 			q->hhf_valid_bits[i] = hhf_zalloc(HHF_ARRAYS_LEN /
 							  BITS_PER_BYTE);
 			if (!q->hhf_valid_bits[i]) {
-				hhf_destroy(sch);
+				/* Note: hhf_destroy() will be called
+				 * by our caller.
+				 */
 				return -ENOMEM;
 			}
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/sch_mq.c linux-libre-4.9.52-gnu/net/sched/sch_mq.c
--- linux-libre-4.9-gnu/net/sched/sch_mq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/sch_mq.c	2017-09-27 08:40:05.000000000 -0400
@@ -52,7 +52,7 @@ static int mq_init(struct Qdisc *sch, st
 	/* pre-allocate qdiscs, attachment can't fail */
 	priv->qdiscs = kcalloc(dev->num_tx_queues, sizeof(priv->qdiscs[0]),
 			       GFP_KERNEL);
-	if (priv->qdiscs == NULL)
+	if (!priv->qdiscs)
 		return -ENOMEM;
 
 	for (ntx = 0; ntx < dev->num_tx_queues; ntx++) {
@@ -60,18 +60,14 @@ static int mq_init(struct Qdisc *sch, st
 		qdisc = qdisc_create_dflt(dev_queue, get_default_qdisc_ops(dev, ntx),
 					  TC_H_MAKE(TC_H_MAJ(sch->handle),
 						    TC_H_MIN(ntx + 1)));
-		if (qdisc == NULL)
-			goto err;
+		if (!qdisc)
+			return -ENOMEM;
 		priv->qdiscs[ntx] = qdisc;
 		qdisc->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT;
 	}
 
 	sch->flags |= TCQ_F_MQROOT;
 	return 0;
-
-err:
-	mq_destroy(sch);
-	return -ENOMEM;
 }
 
 static void mq_attach(struct Qdisc *sch)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/sch_mqprio.c linux-libre-4.9.52-gnu/net/sched/sch_mqprio.c
--- linux-libre-4.9-gnu/net/sched/sch_mqprio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/sch_mqprio.c	2017-09-27 08:40:05.000000000 -0400
@@ -118,10 +118,8 @@ static int mqprio_init(struct Qdisc *sch
 	/* pre-allocate qdisc, attachment can't fail */
 	priv->qdiscs = kcalloc(dev->num_tx_queues, sizeof(priv->qdiscs[0]),
 			       GFP_KERNEL);
-	if (priv->qdiscs == NULL) {
-		err = -ENOMEM;
-		goto err;
-	}
+	if (!priv->qdiscs)
+		return -ENOMEM;
 
 	for (i = 0; i < dev->num_tx_queues; i++) {
 		dev_queue = netdev_get_tx_queue(dev, i);
@@ -129,10 +127,9 @@ static int mqprio_init(struct Qdisc *sch
 					  get_default_qdisc_ops(dev, i),
 					  TC_H_MAKE(TC_H_MAJ(sch->handle),
 						    TC_H_MIN(i + 1)));
-		if (qdisc == NULL) {
-			err = -ENOMEM;
-			goto err;
-		}
+		if (!qdisc)
+			return -ENOMEM;
+
 		priv->qdiscs[i] = qdisc;
 		qdisc->flags |= TCQ_F_ONETXQUEUE | TCQ_F_NOPARENT;
 	}
@@ -148,7 +145,7 @@ static int mqprio_init(struct Qdisc *sch
 		priv->hw_owned = 1;
 		err = dev->netdev_ops->ndo_setup_tc(dev, sch->handle, 0, &tc);
 		if (err)
-			goto err;
+			return err;
 	} else {
 		netdev_set_num_tc(dev, qopt->num_tc);
 		for (i = 0; i < qopt->num_tc; i++)
@@ -162,10 +159,6 @@ static int mqprio_init(struct Qdisc *sch
 
 	sch->flags |= TCQ_F_MQROOT;
 	return 0;
-
-err:
-	mqprio_destroy(sch);
-	return err;
 }
 
 static void mqprio_attach(struct Qdisc *sch)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sched/sch_sfq.c linux-libre-4.9.52-gnu/net/sched/sch_sfq.c
--- linux-libre-4.9-gnu/net/sched/sch_sfq.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sched/sch_sfq.c	2017-09-27 08:40:05.000000000 -0400
@@ -434,6 +434,7 @@ congestion_drop:
 		qdisc_drop(head, sch, to_free);
 
 		slot_queue_add(slot, skb);
+		qdisc_tree_reduce_backlog(sch, 0, delta);
 		return NET_XMIT_CN;
 	}
 
@@ -465,8 +466,10 @@ enqueue:
 	/* Return Congestion Notification only if we dropped a packet
 	 * from this flow.
 	 */
-	if (qlen != slot->qlen)
+	if (qlen != slot->qlen) {
+		qdisc_tree_reduce_backlog(sch, 0, dropped - qdisc_pkt_len(skb));
 		return NET_XMIT_CN;
+	}
 
 	/* As we dropped a packet, better let upper stack know this */
 	qdisc_tree_reduce_backlog(sch, 1, dropped);
@@ -742,9 +745,10 @@ static int sfq_init(struct Qdisc *sch, s
 	q->ht = sfq_alloc(sizeof(q->ht[0]) * q->divisor);
 	q->slots = sfq_alloc(sizeof(q->slots[0]) * q->maxflows);
 	if (!q->ht || !q->slots) {
-		sfq_destroy(sch);
+		/* Note: sfq_destroy() will be called by our caller */
 		return -ENOMEM;
 	}
+
 	for (i = 0; i < q->divisor; i++)
 		q->ht[i] = SFQ_EMPTY_SLOT;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sctp/input.c linux-libre-4.9.52-gnu/net/sctp/input.c
--- linux-libre-4.9-gnu/net/sctp/input.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sctp/input.c	2017-09-27 08:40:05.000000000 -0400
@@ -473,15 +473,14 @@ struct sock *sctp_err_lookup(struct net
 			     struct sctp_association **app,
 			     struct sctp_transport **tpp)
 {
+	struct sctp_init_chunk *chunkhdr, _chunkhdr;
 	union sctp_addr saddr;
 	union sctp_addr daddr;
 	struct sctp_af *af;
 	struct sock *sk = NULL;
 	struct sctp_association *asoc;
 	struct sctp_transport *transport = NULL;
-	struct sctp_init_chunk *chunkhdr;
 	__u32 vtag = ntohl(sctphdr->vtag);
-	int len = skb->len - ((void *)sctphdr - (void *)skb->data);
 
 	*app = NULL; *tpp = NULL;
 
@@ -516,13 +515,16 @@ struct sock *sctp_err_lookup(struct net
 	 * discard the packet.
 	 */
 	if (vtag == 0) {
-		chunkhdr = (void *)sctphdr + sizeof(struct sctphdr);
-		if (len < sizeof(struct sctphdr) + sizeof(sctp_chunkhdr_t)
-			  + sizeof(__be32) ||
+		/* chunk header + first 4 octects of init header */
+		chunkhdr = skb_header_pointer(skb, skb_transport_offset(skb) +
+					      sizeof(struct sctphdr),
+					      sizeof(struct sctp_chunkhdr) +
+					      sizeof(__be32), &_chunkhdr);
+		if (!chunkhdr ||
 		    chunkhdr->chunk_hdr.type != SCTP_CID_INIT ||
-		    ntohl(chunkhdr->init_hdr.init_tag) != asoc->c.my_vtag) {
+		    ntohl(chunkhdr->init_hdr.init_tag) != asoc->c.my_vtag)
 			goto out;
-		}
+
 	} else if (vtag != asoc->c.peer_vtag) {
 		goto out;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sctp/ipv6.c linux-libre-4.9.52-gnu/net/sctp/ipv6.c
--- linux-libre-4.9-gnu/net/sctp/ipv6.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sctp/ipv6.c	2017-09-27 08:40:05.000000000 -0400
@@ -222,7 +222,8 @@ static int sctp_v6_xmit(struct sk_buff *
 	SCTP_INC_STATS(sock_net(sk), SCTP_MIB_OUTSCTPPACKS);
 
 	rcu_read_lock();
-	res = ip6_xmit(sk, skb, fl6, rcu_dereference(np->opt), np->tclass);
+	res = ip6_xmit(sk, skb, fl6, sk->sk_mark, rcu_dereference(np->opt),
+		       np->tclass);
 	rcu_read_unlock();
 	return res;
 }
@@ -239,12 +240,10 @@ static void sctp_v6_get_dst(struct sctp_
 	struct sctp_bind_addr *bp;
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sctp_sockaddr_entry *laddr;
-	union sctp_addr *baddr = NULL;
 	union sctp_addr *daddr = &t->ipaddr;
 	union sctp_addr dst_saddr;
 	struct in6_addr *final_p, final;
 	__u8 matchlen = 0;
-	__u8 bmatchlen;
 	sctp_scope_t scope;
 
 	memset(fl6, 0, sizeof(struct flowi6));
@@ -311,23 +310,37 @@ static void sctp_v6_get_dst(struct sctp_
 	 */
 	rcu_read_lock();
 	list_for_each_entry_rcu(laddr, &bp->address_list, list) {
-		if (!laddr->valid)
+		struct dst_entry *bdst;
+		__u8 bmatchlen;
+
+		if (!laddr->valid ||
+		    laddr->state != SCTP_ADDR_SRC ||
+		    laddr->a.sa.sa_family != AF_INET6 ||
+		    scope > sctp_scope(&laddr->a))
 			continue;
-		if ((laddr->state == SCTP_ADDR_SRC) &&
-		    (laddr->a.sa.sa_family == AF_INET6) &&
-		    (scope <= sctp_scope(&laddr->a))) {
-			bmatchlen = sctp_v6_addr_match_len(daddr, &laddr->a);
-			if (!baddr || (matchlen < bmatchlen)) {
-				baddr = &laddr->a;
-				matchlen = bmatchlen;
-			}
-		}
-	}
-	if (baddr) {
-		fl6->saddr = baddr->v6.sin6_addr;
-		fl6->fl6_sport = baddr->v6.sin6_port;
+
+		fl6->saddr = laddr->a.v6.sin6_addr;
+		fl6->fl6_sport = laddr->a.v6.sin6_port;
 		final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final);
-		dst = ip6_dst_lookup_flow(sk, fl6, final_p);
+		bdst = ip6_dst_lookup_flow(sk, fl6, final_p);
+
+		if (!IS_ERR(bdst) &&
+		    ipv6_chk_addr(dev_net(bdst->dev),
+				  &laddr->a.v6.sin6_addr, bdst->dev, 1)) {
+			if (!IS_ERR_OR_NULL(dst))
+				dst_release(dst);
+			dst = bdst;
+			break;
+		}
+
+		bmatchlen = sctp_v6_addr_match_len(daddr, &laddr->a);
+		if (matchlen > bmatchlen)
+			continue;
+
+		if (!IS_ERR_OR_NULL(dst))
+			dst_release(dst);
+		dst = bdst;
+		matchlen = bmatchlen;
 	}
 	rcu_read_unlock();
 
@@ -499,7 +512,9 @@ static void sctp_v6_to_addr(union sctp_a
 {
 	addr->sa.sa_family = AF_INET6;
 	addr->v6.sin6_port = port;
+	addr->v6.sin6_flowinfo = 0;
 	addr->v6.sin6_addr = *saddr;
+	addr->v6.sin6_scope_id = 0;
 }
 
 /* Compare addresses exactly.
@@ -665,6 +680,9 @@ static struct sock *sctp_v6_create_accep
 	newnp = inet6_sk(newsk);
 
 	memcpy(newnp, np, sizeof(struct ipv6_pinfo));
+	newnp->ipv6_mc_list = NULL;
+	newnp->ipv6_ac_list = NULL;
+	newnp->ipv6_fl_list = NULL;
 
 	rcu_read_lock();
 	opt = rcu_dereference(np->opt);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sctp/offload.c linux-libre-4.9.52-gnu/net/sctp/offload.c
--- linux-libre-4.9-gnu/net/sctp/offload.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sctp/offload.c	2017-09-27 08:40:05.000000000 -0400
@@ -68,7 +68,7 @@ static struct sk_buff *sctp_gso_segment(
 		goto out;
 	}
 
-	segs = skb_segment(skb, features | NETIF_F_HW_CSUM);
+	segs = skb_segment(skb, features | NETIF_F_HW_CSUM | NETIF_F_SG);
 	if (IS_ERR(segs))
 		goto out;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sctp/sctp_diag.c linux-libre-4.9.52-gnu/net/sctp/sctp_diag.c
--- linux-libre-4.9-gnu/net/sctp/sctp_diag.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sctp/sctp_diag.c	2017-09-27 08:40:05.000000000 -0400
@@ -70,7 +70,8 @@ static int inet_diag_msg_sctpladdrs_fill
 
 	info = nla_data(attr);
 	list_for_each_entry_rcu(laddr, address_list, list) {
-		memcpy(info, &laddr->a, addrlen);
+		memcpy(info, &laddr->a, sizeof(laddr->a));
+		memset(info + sizeof(laddr->a), 0, addrlen - sizeof(laddr->a));
 		info += addrlen;
 	}
 
@@ -93,7 +94,9 @@ static int inet_diag_msg_sctpaddrs_fill(
 	info = nla_data(attr);
 	list_for_each_entry(from, &asoc->peer.transport_addr_list,
 			    transports) {
-		memcpy(info, &from->ipaddr, addrlen);
+		memcpy(info, &from->ipaddr, sizeof(from->ipaddr));
+		memset(info + sizeof(from->ipaddr), 0,
+		       addrlen - sizeof(from->ipaddr));
 		info += addrlen;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sctp/socket.c linux-libre-4.9.52-gnu/net/sctp/socket.c
--- linux-libre-4.9-gnu/net/sctp/socket.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sctp/socket.c	2017-09-27 08:40:05.000000000 -0400
@@ -235,8 +235,12 @@ static struct sctp_transport *sctp_addr_
 					      sctp_assoc_t id)
 {
 	struct sctp_association *addr_asoc = NULL, *id_asoc = NULL;
-	struct sctp_transport *transport;
+	struct sctp_af *af = sctp_get_af_specific(addr->ss_family);
 	union sctp_addr *laddr = (union sctp_addr *)addr;
+	struct sctp_transport *transport;
+
+	if (!af || sctp_verify_addr(sk, laddr, af->sockaddr_len))
+		return NULL;
 
 	addr_asoc = sctp_endpoint_lookup_assoc(sctp_sk(sk)->ep,
 					       laddr,
@@ -4369,8 +4373,7 @@ int sctp_get_sctp_info(struct sock *sk,
 	info->sctpi_ictrlchunks = asoc->stats.ictrlchunks;
 
 	prim = asoc->peer.primary_path;
-	memcpy(&info->sctpi_p_address, &prim->ipaddr,
-	       sizeof(struct sockaddr_storage));
+	memcpy(&info->sctpi_p_address, &prim->ipaddr, sizeof(prim->ipaddr));
 	info->sctpi_p_state = prim->state;
 	info->sctpi_p_cwnd = prim->cwnd;
 	info->sctpi_p_srtt = prim->srtt;
@@ -4456,13 +4459,13 @@ int sctp_for_each_endpoint(int (*cb)(str
 
 	for (head = sctp_ep_hashtable; hash < sctp_ep_hashsize;
 	     hash++, head++) {
-		read_lock(&head->lock);
+		read_lock_bh(&head->lock);
 		sctp_for_each_hentry(epb, &head->chain) {
 			err = cb(sctp_ep(epb), p);
 			if (err)
 				break;
 		}
-		read_unlock(&head->lock);
+		read_unlock_bh(&head->lock);
 	}
 
 	return err;
@@ -4479,9 +4482,10 @@ int sctp_transport_lookup_process(int (*
 
 	rcu_read_lock();
 	transport = sctp_addrs_lookup_transport(net, laddr, paddr);
-	if (!transport || !sctp_transport_hold(transport))
+	if (!transport || !sctp_transport_hold(transport)) {
+		rcu_read_unlock();
 		goto out;
-
+	}
 	rcu_read_unlock();
 	err = cb(transport, p);
 	sctp_transport_put(transport);
@@ -4501,9 +4505,8 @@ int sctp_for_each_transport(int (*cb)(st
 	if (err)
 		return err;
 
-	sctp_transport_get_idx(net, &hti, pos);
-	obj = sctp_transport_get_next(net, &hti);
-	for (; obj && !IS_ERR(obj); obj = sctp_transport_get_next(net, &hti)) {
+	obj = sctp_transport_get_idx(net, &hti, pos + 1);
+	for (; !IS_ERR_OR_NULL(obj); obj = sctp_transport_get_next(net, &hti)) {
 		struct sctp_transport *transport = obj;
 
 		if (!sctp_transport_hold(transport))
@@ -4734,6 +4737,12 @@ int sctp_do_peeloff(struct sock *sk, sct
 	if (!asoc)
 		return -EINVAL;
 
+	/* If there is a thread waiting on more sndbuf space for
+	 * sending on this asoc, it cannot be peeled.
+	 */
+	if (waitqueue_active(&asoc->wait))
+		return -EBUSY;
+
 	/* An association cannot be branched off from an already peeled-off
 	 * socket, nor is this supported for tcp style sockets.
 	 */
@@ -6854,6 +6863,9 @@ int sctp_inet_listen(struct socket *sock
 	if (sock->state != SS_UNCONNECTED)
 		goto out;
 
+	if (!sctp_sstate(sk, LISTENING) && !sctp_sstate(sk, CLOSED))
+		goto out;
+
 	/* If backlog is zero, disable listening. */
 	if (!backlog) {
 		if (sctp_sstate(sk, CLOSED))
@@ -7426,7 +7438,6 @@ static int sctp_wait_for_sndbuf(struct s
 		 */
 		release_sock(sk);
 		current_timeo = schedule_timeout(current_timeo);
-		BUG_ON(sk != asoc->base.sk);
 		lock_sock(sk);
 
 		*timeo_p = current_timeo;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sctp/ulpqueue.c linux-libre-4.9.52-gnu/net/sctp/ulpqueue.c
--- linux-libre-4.9-gnu/net/sctp/ulpqueue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sctp/ulpqueue.c	2017-09-27 08:40:05.000000000 -0400
@@ -265,7 +265,8 @@ int sctp_ulpq_tail_event(struct sctp_ulp
 		sctp_ulpq_clear_pd(ulpq);
 
 	if (queue == &sk->sk_receive_queue && !sp->data_ready_signalled) {
-		sp->data_ready_signalled = 1;
+		if (!sock_owned_by_user(sk))
+			sp->data_ready_signalled = 1;
 		sk->sk_data_ready(sk);
 	}
 	return 1;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/socket.c linux-libre-4.9.52-gnu/net/socket.c
--- linux-libre-4.9-gnu/net/socket.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/socket.c	2017-09-27 08:40:05.000000000 -0400
@@ -2197,8 +2197,10 @@ int __sys_recvmmsg(int fd, struct mmsghd
 		return err;
 
 	err = sock_error(sock->sk);
-	if (err)
+	if (err) {
+		datagrams = err;
 		goto out_put;
+	}
 
 	entry = mmsg;
 	compat_entry = (struct compat_mmsghdr __user *)mmsg;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/strparser/strparser.c linux-libre-4.9.52-gnu/net/strparser/strparser.c
--- linux-libre-4.9-gnu/net/strparser/strparser.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/strparser/strparser.c	2017-09-27 08:40:05.000000000 -0400
@@ -504,6 +504,7 @@ static int __init strp_mod_init(void)
 
 static void __exit strp_mod_exit(void)
 {
+	destroy_workqueue(strp_wq);
 }
 module_init(strp_mod_init);
 module_exit(strp_mod_exit);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/auth_gss/auth_gss.c linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/auth_gss.c
--- linux-libre-4.9-gnu/net/sunrpc/auth_gss/auth_gss.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/auth_gss.c	2017-09-27 08:40:05.000000000 -0400
@@ -541,9 +541,13 @@ gss_setup_upcall(struct gss_auth *gss_au
 		return gss_new;
 	gss_msg = gss_add_msg(gss_new);
 	if (gss_msg == gss_new) {
-		int res = rpc_queue_upcall(gss_new->pipe, &gss_new->msg);
+		int res;
+		atomic_inc(&gss_msg->count);
+		res = rpc_queue_upcall(gss_new->pipe, &gss_new->msg);
 		if (res) {
 			gss_unhash_msg(gss_new);
+			atomic_dec(&gss_msg->count);
+			gss_release_msg(gss_new);
 			gss_msg = ERR_PTR(res);
 		}
 	} else
@@ -836,6 +840,7 @@ gss_pipe_destroy_msg(struct rpc_pipe_msg
 			warn_gssd();
 		gss_release_msg(gss_msg);
 	}
+	gss_release_msg(gss_msg);
 }
 
 static void gss_pipe_dentry_destroy(struct dentry *dir,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/auth_gss/gss_krb5_crypto.c linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/gss_krb5_crypto.c
--- linux-libre-4.9-gnu/net/sunrpc/auth_gss/gss_krb5_crypto.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/gss_krb5_crypto.c	2017-09-27 08:40:05.000000000 -0400
@@ -34,6 +34,7 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
+#include <crypto/algapi.h>
 #include <crypto/hash.h>
 #include <crypto/skcipher.h>
 #include <linux/err.h>
@@ -927,7 +928,7 @@ gss_krb5_aes_decrypt(struct krb5_ctx *kc
 	if (ret)
 		goto out_err;
 
-	if (memcmp(pkt_hmac, our_hmac, kctx->gk5e->cksumlength) != 0) {
+	if (crypto_memneq(pkt_hmac, our_hmac, kctx->gk5e->cksumlength) != 0) {
 		ret = GSS_S_BAD_SIG;
 		goto out_err;
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/auth_gss/gss_rpc_xdr.c linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/gss_rpc_xdr.c
--- linux-libre-4.9-gnu/net/sunrpc/auth_gss/gss_rpc_xdr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/gss_rpc_xdr.c	2017-09-27 08:40:05.000000000 -0400
@@ -260,7 +260,7 @@ static int gssx_dec_option_array(struct
 	if (!oa->data)
 		return -ENOMEM;
 
-	creds = kmalloc(sizeof(struct svc_cred), GFP_KERNEL);
+	creds = kzalloc(sizeof(struct svc_cred), GFP_KERNEL);
 	if (!creds) {
 		kfree(oa->data);
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/auth_gss/svcauth_gss.c linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/svcauth_gss.c
--- linux-libre-4.9-gnu/net/sunrpc/auth_gss/svcauth_gss.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/auth_gss/svcauth_gss.c	2017-09-27 08:40:05.000000000 -0400
@@ -1489,7 +1489,7 @@ svcauth_gss_accept(struct svc_rqst *rqst
 	case RPC_GSS_PROC_DESTROY:
 		if (gss_write_verf(rqstp, rsci->mechctx, gc->gc_seq))
 			goto auth_err;
-		rsci->h.expiry_time = get_seconds();
+		rsci->h.expiry_time = seconds_since_boot();
 		set_bit(CACHE_NEGATIVE, &rsci->h.flags);
 		if (resv->iov_len + 4 > PAGE_SIZE)
 			goto drop;
@@ -1548,7 +1548,7 @@ complete:
 	ret = SVC_COMPLETE;
 	goto out;
 drop:
-	ret = SVC_DROP;
+	ret = SVC_CLOSE;
 out:
 	if (rsci)
 		cache_put(&rsci->h, sn->rsc_cache);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/clnt.c linux-libre-4.9.52-gnu/net/sunrpc/clnt.c
--- linux-libre-4.9-gnu/net/sunrpc/clnt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/clnt.c	2017-09-27 08:40:05.000000000 -0400
@@ -336,6 +336,11 @@ out:
 
 static DEFINE_IDA(rpc_clids);
 
+void rpc_cleanup_clids(void)
+{
+	ida_destroy(&rpc_clids);
+}
+
 static int rpc_alloc_clid(struct rpc_clnt *clnt)
 {
 	int clid;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/sunrpc_syms.c linux-libre-4.9.52-gnu/net/sunrpc/sunrpc_syms.c
--- linux-libre-4.9-gnu/net/sunrpc/sunrpc_syms.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/sunrpc_syms.c	2017-09-27 08:40:05.000000000 -0400
@@ -119,6 +119,7 @@ out:
 static void __exit
 cleanup_sunrpc(void)
 {
+	rpc_cleanup_clids();
 	rpcauth_remove_module();
 	cleanup_socket_xprt();
 	svc_cleanup_xprt_sock();
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/svc.c linux-libre-4.9.52-gnu/net/sunrpc/svc.c
--- linux-libre-4.9-gnu/net/sunrpc/svc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/svc.c	2017-09-27 08:40:05.000000000 -0400
@@ -702,59 +702,32 @@ found_pool:
 	return task;
 }
 
-/*
- * Create or destroy enough new threads to make the number
- * of threads the given number.  If `pool' is non-NULL, applies
- * only to threads in that pool, otherwise round-robins between
- * all pools.  Caller must ensure that mutual exclusion between this and
- * server startup or shutdown.
- *
- * Destroying threads relies on the service threads filling in
- * rqstp->rq_task, which only the nfs ones do.  Assumes the serv
- * has been created using svc_create_pooled().
- *
- * Based on code that used to be in nfsd_svc() but tweaked
- * to be pool-aware.
- */
-int
-svc_set_num_threads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+/* create new threads */
+static int
+svc_start_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
 {
 	struct svc_rqst	*rqstp;
 	struct task_struct *task;
 	struct svc_pool *chosen_pool;
-	int error = 0;
 	unsigned int state = serv->sv_nrthreads-1;
 	int node;
 
-	if (pool == NULL) {
-		/* The -1 assumes caller has done a svc_get() */
-		nrservs -= (serv->sv_nrthreads-1);
-	} else {
-		spin_lock_bh(&pool->sp_lock);
-		nrservs -= pool->sp_nrthreads;
-		spin_unlock_bh(&pool->sp_lock);
-	}
-
-	/* create new threads */
-	while (nrservs > 0) {
+	do {
 		nrservs--;
 		chosen_pool = choose_pool(serv, pool, &state);
 
 		node = svc_pool_map_get_node(chosen_pool->sp_id);
 		rqstp = svc_prepare_thread(serv, chosen_pool, node);
-		if (IS_ERR(rqstp)) {
-			error = PTR_ERR(rqstp);
-			break;
-		}
+		if (IS_ERR(rqstp))
+			return PTR_ERR(rqstp);
 
 		__module_get(serv->sv_ops->svo_module);
 		task = kthread_create_on_node(serv->sv_ops->svo_function, rqstp,
 					      node, "%s", serv->sv_name);
 		if (IS_ERR(task)) {
-			error = PTR_ERR(task);
 			module_put(serv->sv_ops->svo_module);
 			svc_exit_thread(rqstp);
-			break;
+			return PTR_ERR(task);
 		}
 
 		rqstp->rq_task = task;
@@ -763,18 +736,103 @@ svc_set_num_threads(struct svc_serv *ser
 
 		svc_sock_update_bufs(serv);
 		wake_up_process(task);
-	}
+	} while (nrservs > 0);
+
+	return 0;
+}
+
+
+/* destroy old threads */
+static int
+svc_signal_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+{
+	struct task_struct *task;
+	unsigned int state = serv->sv_nrthreads-1;
+
 	/* destroy old threads */
-	while (nrservs < 0 &&
-	       (task = choose_victim(serv, pool, &state)) != NULL) {
+	do {
+		task = choose_victim(serv, pool, &state);
+		if (task == NULL)
+			break;
 		send_sig(SIGINT, task, 1);
 		nrservs++;
+	} while (nrservs < 0);
+
+	return 0;
+}
+
+/*
+ * Create or destroy enough new threads to make the number
+ * of threads the given number.  If `pool' is non-NULL, applies
+ * only to threads in that pool, otherwise round-robins between
+ * all pools.  Caller must ensure that mutual exclusion between this and
+ * server startup or shutdown.
+ *
+ * Destroying threads relies on the service threads filling in
+ * rqstp->rq_task, which only the nfs ones do.  Assumes the serv
+ * has been created using svc_create_pooled().
+ *
+ * Based on code that used to be in nfsd_svc() but tweaked
+ * to be pool-aware.
+ */
+int
+svc_set_num_threads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+{
+	if (pool == NULL) {
+		/* The -1 assumes caller has done a svc_get() */
+		nrservs -= (serv->sv_nrthreads-1);
+	} else {
+		spin_lock_bh(&pool->sp_lock);
+		nrservs -= pool->sp_nrthreads;
+		spin_unlock_bh(&pool->sp_lock);
 	}
 
-	return error;
+	if (nrservs > 0)
+		return svc_start_kthreads(serv, pool, nrservs);
+	if (nrservs < 0)
+		return svc_signal_kthreads(serv, pool, nrservs);
+	return 0;
 }
 EXPORT_SYMBOL_GPL(svc_set_num_threads);
 
+/* destroy old threads */
+static int
+svc_stop_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+{
+	struct task_struct *task;
+	unsigned int state = serv->sv_nrthreads-1;
+
+	/* destroy old threads */
+	do {
+		task = choose_victim(serv, pool, &state);
+		if (task == NULL)
+			break;
+		kthread_stop(task);
+		nrservs++;
+	} while (nrservs < 0);
+	return 0;
+}
+
+int
+svc_set_num_threads_sync(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+{
+	if (pool == NULL) {
+		/* The -1 assumes caller has done a svc_get() */
+		nrservs -= (serv->sv_nrthreads-1);
+	} else {
+		spin_lock_bh(&pool->sp_lock);
+		nrservs -= pool->sp_nrthreads;
+		spin_unlock_bh(&pool->sp_lock);
+	}
+
+	if (nrservs > 0)
+		return svc_start_kthreads(serv, pool, nrservs);
+	if (nrservs < 0)
+		return svc_stop_kthreads(serv, pool, nrservs);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(svc_set_num_threads_sync);
+
 /*
  * Called from a server thread as it's exiting. Caller must hold the "service
  * mutex" for the service.
@@ -1155,8 +1213,7 @@ svc_process_common(struct svc_rqst *rqst
 	case SVC_DENIED:
 		goto err_bad_auth;
 	case SVC_CLOSE:
-		if (test_bit(XPT_TEMP, &rqstp->rq_xprt->xpt_flags))
-			svc_close_xprt(rqstp->rq_xprt);
+		goto close;
 	case SVC_DROP:
 		goto dropit;
 	case SVC_COMPLETE:
@@ -1246,7 +1303,7 @@ svc_process_common(struct svc_rqst *rqst
 
  sendit:
 	if (svc_authorise(rqstp))
-		goto dropit;
+		goto close;
 	return 1;		/* Caller can now send it */
 
  dropit:
@@ -1254,11 +1311,16 @@ svc_process_common(struct svc_rqst *rqst
 	dprintk("svc: svc_process dropit\n");
 	return 0;
 
+ close:
+	if (test_bit(XPT_TEMP, &rqstp->rq_xprt->xpt_flags))
+		svc_close_xprt(rqstp->rq_xprt);
+	dprintk("svc: svc_process close\n");
+	return 0;
+
 err_short_len:
 	svc_printk(rqstp, "short len %Zd, dropping request\n",
 			argv->iov_len);
-
-	goto dropit;			/* drop request */
+	goto close;
 
 err_bad_rpc:
 	serv->sv_stats->rpcbadfmt++;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/svcsock.c linux-libre-4.9.52-gnu/net/sunrpc/svcsock.c
--- linux-libre-4.9-gnu/net/sunrpc/svcsock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/svcsock.c	2017-09-27 08:40:05.000000000 -0400
@@ -408,6 +408,9 @@ static void svc_data_ready(struct sock *
 		dprintk("svc: socket %p(inet %p), busy=%d\n",
 			svsk, sk,
 			test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags));
+
+		/* Refer to svc_setup_socket() for details. */
+		rmb();
 		svsk->sk_odata(sk);
 		if (!test_and_set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags))
 			svc_xprt_enqueue(&svsk->sk_xprt);
@@ -424,6 +427,9 @@ static void svc_write_space(struct sock
 	if (svsk) {
 		dprintk("svc: socket %p(inet %p), write_space busy=%d\n",
 			svsk, sk, test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags));
+
+		/* Refer to svc_setup_socket() for details. */
+		rmb();
 		svsk->sk_owspace(sk);
 		svc_xprt_enqueue(&svsk->sk_xprt);
 	}
@@ -748,8 +754,12 @@ static void svc_tcp_listen_data_ready(st
 	dprintk("svc: socket %p TCP (listen) state change %d\n",
 		sk, sk->sk_state);
 
-	if (svsk)
+	if (svsk) {
+		/* Refer to svc_setup_socket() for details. */
+		rmb();
 		svsk->sk_odata(sk);
+	}
+
 	/*
 	 * This callback may called twice when a new connection
 	 * is established as a child socket inherits everything
@@ -782,6 +792,8 @@ static void svc_tcp_state_change(struct
 	if (!svsk)
 		printk("svc: socket %p: no user data\n", sk);
 	else {
+		/* Refer to svc_setup_socket() for details. */
+		rmb();
 		svsk->sk_ostate(sk);
 		if (sk->sk_state != TCP_ESTABLISHED) {
 			set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags);
@@ -1368,12 +1380,18 @@ static struct svc_sock *svc_setup_socket
 		return ERR_PTR(err);
 	}
 
-	inet->sk_user_data = svsk;
 	svsk->sk_sock = sock;
 	svsk->sk_sk = inet;
 	svsk->sk_ostate = inet->sk_state_change;
 	svsk->sk_odata = inet->sk_data_ready;
 	svsk->sk_owspace = inet->sk_write_space;
+	/*
+	 * This barrier is necessary in order to prevent race condition
+	 * with svc_data_ready(), svc_listen_data_ready() and others
+	 * when calling callbacks above.
+	 */
+	wmb();
+	inet->sk_user_data = svsk;
 
 	/* Initialize the socket */
 	if (sock->type == SOCK_DGRAM)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/svc_xprt.c linux-libre-4.9.52-gnu/net/sunrpc/svc_xprt.c
--- linux-libre-4.9-gnu/net/sunrpc/svc_xprt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/svc_xprt.c	2017-09-27 08:40:05.000000000 -0400
@@ -799,6 +799,8 @@ static int svc_handle_xprt(struct svc_rq
 
 	if (test_bit(XPT_CLOSE, &xprt->xpt_flags)) {
 		dprintk("svc_recv: found XPT_CLOSE\n");
+		if (test_and_clear_bit(XPT_KILL_TEMP, &xprt->xpt_flags))
+			xprt->xpt_ops->xpo_kill_temp_xprt(xprt);
 		svc_delete_xprt(xprt);
 		/* Leave XPT_BUSY set on the dead xprt: */
 		goto out;
@@ -1020,9 +1022,11 @@ void svc_age_temp_xprts_now(struct svc_s
 		le = to_be_closed.next;
 		list_del_init(le);
 		xprt = list_entry(le, struct svc_xprt, xpt_list);
-		dprintk("svc_age_temp_xprts_now: closing %p\n", xprt);
-		xprt->xpt_ops->xpo_kill_temp_xprt(xprt);
-		svc_close_xprt(xprt);
+		set_bit(XPT_CLOSE, &xprt->xpt_flags);
+		set_bit(XPT_KILL_TEMP, &xprt->xpt_flags);
+		dprintk("svc_age_temp_xprts_now: queuing xprt %p for closing\n",
+				xprt);
+		svc_xprt_enqueue(xprt);
 	}
 }
 EXPORT_SYMBOL_GPL(svc_age_temp_xprts_now);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/xprtrdma/frwr_ops.c linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/frwr_ops.c
--- linux-libre-4.9-gnu/net/sunrpc/xprtrdma/frwr_ops.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/frwr_ops.c	2017-09-27 08:40:05.000000000 -0400
@@ -421,7 +421,7 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt,
 			 IB_ACCESS_REMOTE_WRITE | IB_ACCESS_LOCAL_WRITE :
 			 IB_ACCESS_REMOTE_READ;
 
-	DECR_CQCOUNT(&r_xprt->rx_ep);
+	rpcrdma_set_signaled(&r_xprt->rx_ep, &reg_wr->wr);
 	rc = ib_post_send(ia->ri_id->qp, &reg_wr->wr, &bad_wr);
 	if (rc)
 		goto out_senderr;
@@ -486,7 +486,7 @@ frwr_op_unmap_sync(struct rpcrdma_xprt *
 	struct rpcrdma_ia *ia = &r_xprt->rx_ia;
 	struct rpcrdma_mw *mw, *tmp;
 	struct rpcrdma_frmr *f;
-	int rc;
+	int count, rc;
 
 	dprintk("RPC:       %s: req %p\n", __func__, req);
 
@@ -496,6 +496,7 @@ frwr_op_unmap_sync(struct rpcrdma_xprt *
 	 * a single ib_post_send() call.
 	 */
 	f = NULL;
+	count = 0;
 	invalidate_wrs = pos = prev = NULL;
 	list_for_each_entry(mw, &req->rl_registered, mw_list) {
 		if ((rep->rr_wc_flags & IB_WC_WITH_INVALIDATE) &&
@@ -505,6 +506,7 @@ frwr_op_unmap_sync(struct rpcrdma_xprt *
 		}
 
 		pos = __frwr_prepare_linv_wr(mw);
+		count++;
 
 		if (!invalidate_wrs)
 			invalidate_wrs = pos;
@@ -523,7 +525,12 @@ frwr_op_unmap_sync(struct rpcrdma_xprt *
 	f->fr_invwr.send_flags = IB_SEND_SIGNALED;
 	f->fr_cqe.done = frwr_wc_localinv_wake;
 	reinit_completion(&f->fr_linv_done);
-	INIT_CQCOUNT(&r_xprt->rx_ep);
+
+	/* Initialize CQ count, since there is always a signaled
+	 * WR being posted here.  The new cqcount depends on how
+	 * many SQEs are about to be consumed.
+	 */
+	rpcrdma_init_cqcount(&r_xprt->rx_ep, count);
 
 	/* Transport disconnect drains the receive CQ before it
 	 * replaces the QP. The RPC reply handler won't call us
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/xprtrdma/rpc_rdma.c linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/rpc_rdma.c
--- linux-libre-4.9-gnu/net/sunrpc/xprtrdma/rpc_rdma.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/rpc_rdma.c	2017-09-27 08:40:05.000000000 -0400
@@ -125,14 +125,34 @@ void rpcrdma_set_max_header_sizes(struct
 /* The client can send a request inline as long as the RPCRDMA header
  * plus the RPC call fit under the transport's inline limit. If the
  * combined call message size exceeds that limit, the client must use
- * the read chunk list for this operation.
+ * a Read chunk for this operation.
+ *
+ * A Read chunk is also required if sending the RPC call inline would
+ * exceed this device's max_sge limit.
  */
 static bool rpcrdma_args_inline(struct rpcrdma_xprt *r_xprt,
 				struct rpc_rqst *rqst)
 {
-	struct rpcrdma_ia *ia = &r_xprt->rx_ia;
+	struct xdr_buf *xdr = &rqst->rq_snd_buf;
+	unsigned int count, remaining, offset;
 
-	return rqst->rq_snd_buf.len <= ia->ri_max_inline_write;
+	if (xdr->len > r_xprt->rx_ia.ri_max_inline_write)
+		return false;
+
+	if (xdr->page_len) {
+		remaining = xdr->page_len;
+		offset = xdr->page_base & ~PAGE_MASK;
+		count = 0;
+		while (remaining) {
+			remaining -= min_t(unsigned int,
+					   PAGE_SIZE - offset, remaining);
+			offset = 0;
+			if (++count > r_xprt->rx_ia.ri_max_send_sges)
+				return false;
+		}
+	}
+
+	return true;
 }
 
 /* The client can't know how large the actual reply will be. Thus it
@@ -186,9 +206,9 @@ rpcrdma_convert_kvec(struct kvec *vec, s
  */
 
 static int
-rpcrdma_convert_iovs(struct xdr_buf *xdrbuf, unsigned int pos,
-	enum rpcrdma_chunktype type, struct rpcrdma_mr_seg *seg,
-	bool reminv_expected)
+rpcrdma_convert_iovs(struct rpcrdma_xprt *r_xprt, struct xdr_buf *xdrbuf,
+		     unsigned int pos, enum rpcrdma_chunktype type,
+		     struct rpcrdma_mr_seg *seg)
 {
 	int len, n, p, page_base;
 	struct page **ppages;
@@ -226,22 +246,21 @@ rpcrdma_convert_iovs(struct xdr_buf *xdr
 	if (len && n == RPCRDMA_MAX_SEGS)
 		goto out_overflow;
 
-	/* When encoding the read list, the tail is always sent inline */
-	if (type == rpcrdma_readch)
+	/* When encoding a Read chunk, the tail iovec contains an
+	 * XDR pad and may be omitted.
+	 */
+	if (type == rpcrdma_readch && r_xprt->rx_ia.ri_implicit_roundup)
 		return n;
 
-	/* When encoding the Write list, some servers need to see an extra
-	 * segment for odd-length Write chunks. The upper layer provides
-	 * space in the tail iovec for this purpose.
+	/* When encoding a Write chunk, some servers need to see an
+	 * extra segment for non-XDR-aligned Write chunks. The upper
+	 * layer provides space in the tail iovec that may be used
+	 * for this purpose.
 	 */
-	if (type == rpcrdma_writech && reminv_expected)
+	if (type == rpcrdma_writech && r_xprt->rx_ia.ri_implicit_roundup)
 		return n;
 
 	if (xdrbuf->tail[0].iov_len) {
-		/* the rpcrdma protocol allows us to omit any trailing
-		 * xdr pad bytes, saving the server an RDMA operation. */
-		if (xdrbuf->tail[0].iov_len < 4 && xprt_rdma_pad_optimize)
-			return n;
 		n = rpcrdma_convert_kvec(&xdrbuf->tail[0], seg, n);
 		if (n == RPCRDMA_MAX_SEGS)
 			goto out_overflow;
@@ -293,7 +312,8 @@ rpcrdma_encode_read_list(struct rpcrdma_
 	if (rtype == rpcrdma_areadch)
 		pos = 0;
 	seg = req->rl_segments;
-	nsegs = rpcrdma_convert_iovs(&rqst->rq_snd_buf, pos, rtype, seg, false);
+	nsegs = rpcrdma_convert_iovs(r_xprt, &rqst->rq_snd_buf, pos,
+				     rtype, seg);
 	if (nsegs < 0)
 		return ERR_PTR(nsegs);
 
@@ -355,10 +375,9 @@ rpcrdma_encode_write_list(struct rpcrdma
 	}
 
 	seg = req->rl_segments;
-	nsegs = rpcrdma_convert_iovs(&rqst->rq_rcv_buf,
+	nsegs = rpcrdma_convert_iovs(r_xprt, &rqst->rq_rcv_buf,
 				     rqst->rq_rcv_buf.head[0].iov_len,
-				     wtype, seg,
-				     r_xprt->rx_ia.ri_reminv_expected);
+				     wtype, seg);
 	if (nsegs < 0)
 		return ERR_PTR(nsegs);
 
@@ -423,8 +442,7 @@ rpcrdma_encode_reply_chunk(struct rpcrdm
 	}
 
 	seg = req->rl_segments;
-	nsegs = rpcrdma_convert_iovs(&rqst->rq_rcv_buf, 0, wtype, seg,
-				     r_xprt->rx_ia.ri_reminv_expected);
+	nsegs = rpcrdma_convert_iovs(r_xprt, &rqst->rq_rcv_buf, 0, wtype, seg);
 	if (nsegs < 0)
 		return ERR_PTR(nsegs);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/xprtrdma/svc_rdma_backchannel.c linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
--- linux-libre-4.9-gnu/net/sunrpc/xprtrdma/svc_rdma_backchannel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/svc_rdma_backchannel.c	2017-09-27 08:40:05.000000000 -0400
@@ -359,6 +359,7 @@ xprt_setup_rdma_bc(struct xprt_create *a
 out_fail:
 	xprt_rdma_free_addresses(xprt);
 	args->bc_xprt->xpt_bc_xprt = NULL;
+	args->bc_xprt->xpt_bc_xps = NULL;
 	xprt_put(xprt);
 	xprt_free(xprt);
 	return ERR_PTR(-EINVAL);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
--- linux-libre-4.9-gnu/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c	2017-09-27 08:40:05.000000000 -0400
@@ -348,8 +348,6 @@ int rdma_read_chunk_frmr(struct svcxprt_
 	atomic_inc(&rdma_stat_read);
 	return ret;
  err:
-	ib_dma_unmap_sg(xprt->sc_cm_id->device,
-			frmr->sg, frmr->sg_nents, frmr->direction);
 	svc_rdma_put_context(ctxt, 0);
 	svc_rdma_put_frmr(xprt, frmr);
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/xprtrdma/transport.c linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/transport.c
--- linux-libre-4.9-gnu/net/sunrpc/xprtrdma/transport.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/transport.c	2017-09-27 08:40:05.000000000 -0400
@@ -67,7 +67,7 @@ unsigned int xprt_rdma_max_inline_read =
 static unsigned int xprt_rdma_max_inline_write = RPCRDMA_DEF_INLINE;
 static unsigned int xprt_rdma_inline_write_padding;
 static unsigned int xprt_rdma_memreg_strategy = RPCRDMA_FRMR;
-		int xprt_rdma_pad_optimize = 1;
+		int xprt_rdma_pad_optimize = 0;
 
 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/xprtrdma/verbs.c linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/verbs.c
--- linux-libre-4.9-gnu/net/sunrpc/xprtrdma/verbs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/verbs.c	2017-09-27 08:40:05.000000000 -0400
@@ -208,6 +208,7 @@ rpcrdma_update_connect_private(struct rp
 
 	/* Default settings for RPC-over-RDMA Version One */
 	r_xprt->rx_ia.ri_reminv_expected = false;
+	r_xprt->rx_ia.ri_implicit_roundup = xprt_rdma_pad_optimize;
 	rsize = RPCRDMA_V1_DEF_INLINE_SIZE;
 	wsize = RPCRDMA_V1_DEF_INLINE_SIZE;
 
@@ -215,6 +216,7 @@ rpcrdma_update_connect_private(struct rp
 	    pmsg->cp_magic == rpcrdma_cmp_magic &&
 	    pmsg->cp_version == RPCRDMA_CMP_VERSION) {
 		r_xprt->rx_ia.ri_reminv_expected = true;
+		r_xprt->rx_ia.ri_implicit_roundup = true;
 		rsize = rpcrdma_decode_buffer_size(pmsg->cp_send_size);
 		wsize = rpcrdma_decode_buffer_size(pmsg->cp_recv_size);
 	}
@@ -223,8 +225,8 @@ rpcrdma_update_connect_private(struct rp
 		cdata->inline_rsize = rsize;
 	if (wsize < cdata->inline_wsize)
 		cdata->inline_wsize = wsize;
-	pr_info("rpcrdma: max send %u, max recv %u\n",
-		cdata->inline_wsize, cdata->inline_rsize);
+	dprintk("RPC:       %s: max send %u, max recv %u\n",
+		__func__, cdata->inline_wsize, cdata->inline_rsize);
 	rpcrdma_set_max_header_sizes(r_xprt);
 }
 
@@ -477,18 +479,20 @@ rpcrdma_ia_close(struct rpcrdma_ia *ia)
  */
 int
 rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia,
-				struct rpcrdma_create_data_internal *cdata)
+		  struct rpcrdma_create_data_internal *cdata)
 {
 	struct rpcrdma_connect_private *pmsg = &ep->rep_cm_private;
+	unsigned int max_qp_wr, max_sge;
 	struct ib_cq *sendcq, *recvcq;
-	unsigned int max_qp_wr;
 	int rc;
 
-	if (ia->ri_device->attrs.max_sge < RPCRDMA_MAX_SEND_SGES) {
-		dprintk("RPC:       %s: insufficient sge's available\n",
-			__func__);
+	max_sge = min_t(unsigned int, ia->ri_device->attrs.max_sge,
+			RPCRDMA_MAX_SEND_SGES);
+	if (max_sge < RPCRDMA_MIN_SEND_SGES) {
+		pr_warn("rpcrdma: HCA provides only %d send SGEs\n", max_sge);
 		return -ENOMEM;
 	}
+	ia->ri_max_send_sges = max_sge - RPCRDMA_MIN_SEND_SGES;
 
 	if (ia->ri_device->attrs.max_qp_wr <= RPCRDMA_BACKWARD_WRS) {
 		dprintk("RPC:       %s: insufficient wqe's available\n",
@@ -513,7 +517,7 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep,
 	ep->rep_attr.cap.max_recv_wr = cdata->max_requests;
 	ep->rep_attr.cap.max_recv_wr += RPCRDMA_BACKWARD_WRS;
 	ep->rep_attr.cap.max_recv_wr += 1;	/* drain cqe */
-	ep->rep_attr.cap.max_send_sge = RPCRDMA_MAX_SEND_SGES;
+	ep->rep_attr.cap.max_send_sge = max_sge;
 	ep->rep_attr.cap.max_recv_sge = 1;
 	ep->rep_attr.cap.max_inline_data = 0;
 	ep->rep_attr.sq_sig_type = IB_SIGNAL_REQ_WR;
@@ -532,7 +536,7 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep,
 	ep->rep_cqinit = ep->rep_attr.cap.max_send_wr/2 - 1;
 	if (ep->rep_cqinit <= 2)
 		ep->rep_cqinit = 0;	/* always signal? */
-	INIT_CQCOUNT(ep);
+	rpcrdma_init_cqcount(ep, 0);
 	init_waitqueue_head(&ep->rep_connect_wait);
 	INIT_DELAYED_WORK(&ep->rep_connect_worker, rpcrdma_connect_worker);
 
@@ -1311,13 +1315,7 @@ rpcrdma_ep_post(struct rpcrdma_ia *ia,
 	dprintk("RPC:       %s: posting %d s/g entries\n",
 		__func__, send_wr->num_sge);
 
-	if (DECR_CQCOUNT(ep) > 0)
-		send_wr->send_flags = 0;
-	else { /* Provider must take a send completion every now and then */
-		INIT_CQCOUNT(ep);
-		send_wr->send_flags = IB_SEND_SIGNALED;
-	}
-
+	rpcrdma_set_signaled(ep, send_wr);
 	rc = ib_post_send(ia->ri_id->qp, send_wr, &send_wr_fail);
 	if (rc)
 		goto out_postsend_err;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/sunrpc/xprtrdma/xprt_rdma.h linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/xprt_rdma.h
--- linux-libre-4.9-gnu/net/sunrpc/xprtrdma/xprt_rdma.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/sunrpc/xprtrdma/xprt_rdma.h	2017-09-27 08:40:05.000000000 -0400
@@ -74,7 +74,9 @@ struct rpcrdma_ia {
 	unsigned int		ri_max_frmr_depth;
 	unsigned int		ri_max_inline_write;
 	unsigned int		ri_max_inline_read;
+	unsigned int		ri_max_send_sges;
 	bool			ri_reminv_expected;
+	bool			ri_implicit_roundup;
 	struct ib_qp_attr	ri_qp_attr;
 	struct ib_qp_init_attr	ri_qp_init_attr;
 };
@@ -95,8 +97,24 @@ struct rpcrdma_ep {
 	struct delayed_work	rep_connect_worker;
 };
 
-#define INIT_CQCOUNT(ep) atomic_set(&(ep)->rep_cqcount, (ep)->rep_cqinit)
-#define DECR_CQCOUNT(ep) atomic_sub_return(1, &(ep)->rep_cqcount)
+static inline void
+rpcrdma_init_cqcount(struct rpcrdma_ep *ep, int count)
+{
+	atomic_set(&ep->rep_cqcount, ep->rep_cqinit - count);
+}
+
+/* To update send queue accounting, provider must take a
+ * send completion every now and then.
+ */
+static inline void
+rpcrdma_set_signaled(struct rpcrdma_ep *ep, struct ib_send_wr *send_wr)
+{
+	send_wr->send_flags = 0;
+	if (unlikely(atomic_sub_return(1, &ep->rep_cqcount) <= 0)) {
+		rpcrdma_init_cqcount(ep, 0);
+		send_wr->send_flags = IB_SEND_SIGNALED;
+	}
+}
 
 /* Pre-allocate extra Work Requests for handling backward receives
  * and sends. This is a fixed value because the Work Queues are
@@ -293,6 +311,7 @@ struct rpcrdma_mr_seg {		/* chunk descri
  * - xdr_buf tail iovec
  */
 enum {
+	RPCRDMA_MIN_SEND_SGES = 3,
 	RPCRDMA_MAX_SEND_PAGES = PAGE_SIZE + RPCRDMA_MAX_INLINE - 1,
 	RPCRDMA_MAX_PAGE_SGES = (RPCRDMA_MAX_SEND_PAGES >> PAGE_SHIFT) + 1,
 	RPCRDMA_MAX_SEND_SGES = 1 + 1 + RPCRDMA_MAX_PAGE_SGES + 1,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/discover.c linux-libre-4.9.52-gnu/net/tipc/discover.c
--- linux-libre-4.9-gnu/net/tipc/discover.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/discover.c	2017-09-27 08:40:05.000000000 -0400
@@ -169,7 +169,7 @@ void tipc_disc_rcv(struct net *net, stru
 
 	/* Send response, if necessary */
 	if (respond && (mtyp == DSC_REQ_MSG)) {
-		rskb = tipc_buf_acquire(MAX_H_SIZE);
+		rskb = tipc_buf_acquire(MAX_H_SIZE, GFP_ATOMIC);
 		if (!rskb)
 			return;
 		tipc_disc_init_msg(net, rskb, DSC_RESP_MSG, bearer);
@@ -278,7 +278,7 @@ int tipc_disc_create(struct net *net, st
 	req = kmalloc(sizeof(*req), GFP_ATOMIC);
 	if (!req)
 		return -ENOMEM;
-	req->buf = tipc_buf_acquire(MAX_H_SIZE);
+	req->buf = tipc_buf_acquire(MAX_H_SIZE, GFP_ATOMIC);
 	if (!req->buf) {
 		kfree(req);
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/link.c linux-libre-4.9.52-gnu/net/tipc/link.c
--- linux-libre-4.9-gnu/net/tipc/link.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/link.c	2017-09-27 08:40:05.000000000 -0400
@@ -1395,7 +1395,7 @@ tnl:
 			msg_set_seqno(hdr, seqno++);
 		pktlen = msg_size(hdr);
 		msg_set_size(&tnlhdr, pktlen + INT_H_SIZE);
-		tnlskb = tipc_buf_acquire(pktlen + INT_H_SIZE);
+		tnlskb = tipc_buf_acquire(pktlen + INT_H_SIZE, GFP_ATOMIC);
 		if (!tnlskb) {
 			pr_warn("%sunable to send packet\n", link_co_err);
 			return;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/msg.c linux-libre-4.9.52-gnu/net/tipc/msg.c
--- linux-libre-4.9-gnu/net/tipc/msg.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/msg.c	2017-09-27 08:40:05.000000000 -0400
@@ -58,12 +58,12 @@ static unsigned int align(unsigned int i
  * NOTE: Headroom is reserved to allow prepending of a data link header.
  *       There may also be unrequested tailroom present at the buffer's end.
  */
-struct sk_buff *tipc_buf_acquire(u32 size)
+struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp)
 {
 	struct sk_buff *skb;
 	unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u;
 
-	skb = alloc_skb_fclone(buf_size, GFP_ATOMIC);
+	skb = alloc_skb_fclone(buf_size, gfp);
 	if (skb) {
 		skb_reserve(skb, BUF_HEADROOM);
 		skb_put(skb, size);
@@ -95,7 +95,7 @@ struct sk_buff *tipc_msg_create(uint use
 	struct tipc_msg *msg;
 	struct sk_buff *buf;
 
-	buf = tipc_buf_acquire(hdr_sz + data_sz);
+	buf = tipc_buf_acquire(hdr_sz + data_sz, GFP_ATOMIC);
 	if (unlikely(!buf))
 		return NULL;
 
@@ -261,7 +261,7 @@ int tipc_msg_build(struct tipc_msg *mhdr
 
 	/* No fragmentation needed? */
 	if (likely(msz <= pktmax)) {
-		skb = tipc_buf_acquire(msz);
+		skb = tipc_buf_acquire(msz, GFP_KERNEL);
 		if (unlikely(!skb))
 			return -ENOMEM;
 		skb_orphan(skb);
@@ -282,7 +282,7 @@ int tipc_msg_build(struct tipc_msg *mhdr
 	msg_set_importance(&pkthdr, msg_importance(mhdr));
 
 	/* Prepare first fragment */
-	skb = tipc_buf_acquire(pktmax);
+	skb = tipc_buf_acquire(pktmax, GFP_KERNEL);
 	if (!skb)
 		return -ENOMEM;
 	skb_orphan(skb);
@@ -313,7 +313,7 @@ int tipc_msg_build(struct tipc_msg *mhdr
 			pktsz = drem + INT_H_SIZE;
 		else
 			pktsz = pktmax;
-		skb = tipc_buf_acquire(pktsz);
+		skb = tipc_buf_acquire(pktsz, GFP_KERNEL);
 		if (!skb) {
 			rc = -ENOMEM;
 			goto error;
@@ -448,7 +448,7 @@ bool tipc_msg_make_bundle(struct sk_buff
 	if (msz > (max / 2))
 		return false;
 
-	_skb = tipc_buf_acquire(max);
+	_skb = tipc_buf_acquire(max, GFP_ATOMIC);
 	if (!_skb)
 		return false;
 
@@ -496,7 +496,7 @@ bool tipc_msg_reverse(u32 own_node,  str
 
 	/* Never return SHORT header; expand by replacing buffer if necessary */
 	if (msg_short(hdr)) {
-		*skb = tipc_buf_acquire(BASIC_H_SIZE + dlen);
+		*skb = tipc_buf_acquire(BASIC_H_SIZE + dlen, GFP_ATOMIC);
 		if (!*skb)
 			goto exit;
 		memcpy((*skb)->data + BASIC_H_SIZE, msg_data(hdr), dlen);
@@ -508,7 +508,7 @@ bool tipc_msg_reverse(u32 own_node,  str
 	}
 
 	if (skb_cloned(_skb) &&
-	    pskb_expand_head(_skb, BUF_HEADROOM, BUF_TAILROOM, GFP_KERNEL))
+	    pskb_expand_head(_skb, BUF_HEADROOM, BUF_TAILROOM, GFP_ATOMIC))
 		goto exit;
 
 	/* Now reverse the concerned fields */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/msg.h linux-libre-4.9.52-gnu/net/tipc/msg.h
--- linux-libre-4.9-gnu/net/tipc/msg.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/msg.h	2017-09-27 08:40:05.000000000 -0400
@@ -820,7 +820,7 @@ static inline bool msg_is_reset(struct t
 	return (msg_user(hdr) == LINK_PROTOCOL) && (msg_type(hdr) == RESET_MSG);
 }
 
-struct sk_buff *tipc_buf_acquire(u32 size);
+struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp);
 bool tipc_msg_validate(struct sk_buff *skb);
 bool tipc_msg_reverse(u32 own_addr, struct sk_buff **skb, int err);
 void tipc_msg_init(u32 own_addr, struct tipc_msg *m, u32 user, u32 type,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/name_distr.c linux-libre-4.9.52-gnu/net/tipc/name_distr.c
--- linux-libre-4.9-gnu/net/tipc/name_distr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/name_distr.c	2017-09-27 08:40:05.000000000 -0400
@@ -69,7 +69,7 @@ static struct sk_buff *named_prepare_buf
 					 u32 dest)
 {
 	struct tipc_net *tn = net_generic(net, tipc_net_id);
-	struct sk_buff *buf = tipc_buf_acquire(INT_H_SIZE + size);
+	struct sk_buff *buf = tipc_buf_acquire(INT_H_SIZE + size, GFP_ATOMIC);
 	struct tipc_msg *msg;
 
 	if (buf != NULL) {
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/net.c linux-libre-4.9.52-gnu/net/tipc/net.c
--- linux-libre-4.9-gnu/net/tipc/net.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/net.c	2017-09-27 08:40:05.000000000 -0400
@@ -110,6 +110,10 @@ int tipc_net_start(struct net *net, u32
 	char addr_string[16];
 
 	tn->own_addr = addr;
+
+	/* Ensure that the new address is visible before we reinit. */
+	smp_mb();
+
 	tipc_named_reinit(net);
 	tipc_sk_reinit(net);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/netlink_compat.c linux-libre-4.9.52-gnu/net/tipc/netlink_compat.c
--- linux-libre-4.9-gnu/net/tipc/netlink_compat.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/netlink_compat.c	2017-09-27 08:40:05.000000000 -0400
@@ -258,13 +258,15 @@ static int tipc_nl_compat_dumpit(struct
 	arg = nlmsg_new(0, GFP_KERNEL);
 	if (!arg) {
 		kfree_skb(msg->rep);
+		msg->rep = NULL;
 		return -ENOMEM;
 	}
 
 	err = __tipc_nl_compat_dumpit(cmd, msg, arg);
-	if (err)
+	if (err) {
 		kfree_skb(msg->rep);
-
+		msg->rep = NULL;
+	}
 	kfree_skb(arg);
 
 	return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/node.c linux-libre-4.9.52-gnu/net/tipc/node.c
--- linux-libre-4.9-gnu/net/tipc/node.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/node.c	2017-09-27 08:40:05.000000000 -0400
@@ -263,6 +263,11 @@ static void tipc_node_write_lock(struct
 	write_lock_bh(&n->lock);
 }
 
+static void tipc_node_write_unlock_fast(struct tipc_node *n)
+{
+	write_unlock_bh(&n->lock);
+}
+
 static void tipc_node_write_unlock(struct tipc_node *n)
 {
 	struct net *net = n->net;
@@ -417,7 +422,7 @@ void tipc_node_subscribe(struct net *net
 	}
 	tipc_node_write_lock(n);
 	list_add_tail(subscr, &n->publ_list);
-	tipc_node_write_unlock(n);
+	tipc_node_write_unlock_fast(n);
 	tipc_node_put(n);
 }
 
@@ -435,7 +440,7 @@ void tipc_node_unsubscribe(struct net *n
 	}
 	tipc_node_write_lock(n);
 	list_del_init(subscr);
-	tipc_node_write_unlock(n);
+	tipc_node_write_unlock_fast(n);
 	tipc_node_put(n);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/server.c linux-libre-4.9.52-gnu/net/tipc/server.c
--- linux-libre-4.9-gnu/net/tipc/server.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/server.c	2017-09-27 08:40:05.000000000 -0400
@@ -91,7 +91,8 @@ static void tipc_sock_release(struct tip
 static void tipc_conn_kref_release(struct kref *kref)
 {
 	struct tipc_conn *con = container_of(kref, struct tipc_conn, kref);
-	struct sockaddr_tipc *saddr = con->server->saddr;
+	struct tipc_server *s = con->server;
+	struct sockaddr_tipc *saddr = s->saddr;
 	struct socket *sock = con->sock;
 	struct sock *sk;
 
@@ -106,6 +107,11 @@ static void tipc_conn_kref_release(struc
 		tipc_sock_release(con);
 		sock_release(sock);
 		con->sock = NULL;
+
+		spin_lock_bh(&s->idr_lock);
+		idr_remove(&s->conn_idr, con->conid);
+		s->idr_in_use--;
+		spin_unlock_bh(&s->idr_lock);
 	}
 
 	tipc_clean_outqueues(con);
@@ -128,8 +134,10 @@ static struct tipc_conn *tipc_conn_looku
 
 	spin_lock_bh(&s->idr_lock);
 	con = idr_find(&s->conn_idr, conid);
-	if (con)
+	if (con && test_bit(CF_CONNECTED, &con->flags))
 		conn_get(con);
+	else
+		con = NULL;
 	spin_unlock_bh(&s->idr_lock);
 	return con;
 }
@@ -198,15 +206,8 @@ static void tipc_sock_release(struct tip
 
 static void tipc_close_conn(struct tipc_conn *con)
 {
-	struct tipc_server *s = con->server;
-
 	if (test_and_clear_bit(CF_CONNECTED, &con->flags)) {
 
-		spin_lock_bh(&s->idr_lock);
-		idr_remove(&s->conn_idr, con->conid);
-		s->idr_in_use--;
-		spin_unlock_bh(&s->idr_lock);
-
 		/* We shouldn't flush pending works as we may be in the
 		 * thread. In fact the races with pending rx/tx work structs
 		 * are harmless for us here as we have already deleted this
@@ -458,6 +459,11 @@ int tipc_conn_sendmsg(struct tipc_server
 	if (!con)
 		return -EINVAL;
 
+	if (!test_bit(CF_CONNECTED, &con->flags)) {
+		conn_put(con);
+		return 0;
+	}
+
 	e = tipc_alloc_entry(data, len);
 	if (!e) {
 		conn_put(con);
@@ -471,12 +477,8 @@ int tipc_conn_sendmsg(struct tipc_server
 	list_add_tail(&e->list, &con->outqueue);
 	spin_unlock_bh(&con->outqueue_lock);
 
-	if (test_bit(CF_CONNECTED, &con->flags)) {
-		if (!queue_work(s->send_wq, &con->swork))
-			conn_put(con);
-	} else {
+	if (!queue_work(s->send_wq, &con->swork))
 		conn_put(con);
-	}
 	return 0;
 }
 
@@ -500,7 +502,7 @@ static void tipc_send_to_sock(struct tip
 	int ret;
 
 	spin_lock_bh(&con->outqueue_lock);
-	while (1) {
+	while (test_bit(CF_CONNECTED, &con->flags)) {
 		e = list_entry(con->outqueue.next, struct outqueue_entry,
 			       list);
 		if ((struct list_head *) e == &con->outqueue)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/socket.c linux-libre-4.9.52-gnu/net/tipc/socket.c
--- linux-libre-4.9-gnu/net/tipc/socket.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/socket.c	2017-09-27 08:40:05.000000000 -0400
@@ -335,8 +335,6 @@ static int tipc_sk_create(struct net *ne
 	INIT_LIST_HEAD(&tsk->publications);
 	msg = &tsk->phdr;
 	tn = net_generic(sock_net(sk), tipc_net_id);
-	tipc_msg_init(tn->own_addr, msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG,
-		      NAMED_H_SIZE, 0);
 
 	/* Finish initializing socket data structures */
 	sock->ops = ops;
@@ -346,6 +344,13 @@ static int tipc_sk_create(struct net *ne
 		pr_warn("Socket create failed; port number exhausted\n");
 		return -EINVAL;
 	}
+
+	/* Ensure tsk is visible before we read own_addr. */
+	smp_mb();
+
+	tipc_msg_init(tn->own_addr, msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG,
+		      NAMED_H_SIZE, 0);
+
 	msg_set_origport(msg, tsk->portid);
 	setup_timer(&sk->sk_timer, tipc_sk_timeout, (unsigned long)tsk);
 	sk->sk_backlog_rcv = tipc_backlog_rcv;
@@ -2264,24 +2269,27 @@ static int tipc_sk_withdraw(struct tipc_
 void tipc_sk_reinit(struct net *net)
 {
 	struct tipc_net *tn = net_generic(net, tipc_net_id);
-	const struct bucket_table *tbl;
-	struct rhash_head *pos;
+	struct rhashtable_iter iter;
 	struct tipc_sock *tsk;
 	struct tipc_msg *msg;
-	int i;
 
-	rcu_read_lock();
-	tbl = rht_dereference_rcu((&tn->sk_rht)->tbl, &tn->sk_rht);
-	for (i = 0; i < tbl->size; i++) {
-		rht_for_each_entry_rcu(tsk, pos, tbl, i, node) {
+	rhashtable_walk_enter(&tn->sk_rht, &iter);
+
+	do {
+		tsk = ERR_PTR(rhashtable_walk_start(&iter));
+		if (tsk)
+			continue;
+
+		while ((tsk = rhashtable_walk_next(&iter)) && !IS_ERR(tsk)) {
 			spin_lock_bh(&tsk->sk.sk_lock.slock);
 			msg = &tsk->phdr;
 			msg_set_prevnode(msg, tn->own_addr);
 			msg_set_orignode(msg, tn->own_addr);
 			spin_unlock_bh(&tsk->sk.sk_lock.slock);
 		}
-	}
-	rcu_read_unlock();
+
+		rhashtable_walk_stop(&iter);
+	} while (tsk == ERR_PTR(-EAGAIN));
 }
 
 static struct tipc_sock *tipc_sk_lookup(struct net *net, u32 portid)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/subscr.c linux-libre-4.9.52-gnu/net/tipc/subscr.c
--- linux-libre-4.9-gnu/net/tipc/subscr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/subscr.c	2017-09-27 08:40:05.000000000 -0400
@@ -54,6 +54,8 @@ struct tipc_subscriber {
 
 static void tipc_subscrp_delete(struct tipc_subscription *sub);
 static void tipc_subscrb_put(struct tipc_subscriber *subscriber);
+static void tipc_subscrp_put(struct tipc_subscription *subscription);
+static void tipc_subscrp_get(struct tipc_subscription *subscription);
 
 /**
  * htohl - convert value to endianness used by destination
@@ -123,6 +125,7 @@ void tipc_subscrp_report_overlap(struct
 {
 	struct tipc_name_seq seq;
 
+	tipc_subscrp_get(sub);
 	tipc_subscrp_convert_seq(&sub->evt.s.seq, sub->swap, &seq);
 	if (!tipc_subscrp_check_overlap(&seq, found_lower, found_upper))
 		return;
@@ -132,30 +135,23 @@ void tipc_subscrp_report_overlap(struct
 
 	tipc_subscrp_send_event(sub, found_lower, found_upper, event, port_ref,
 				node);
+	tipc_subscrp_put(sub);
 }
 
 static void tipc_subscrp_timeout(unsigned long data)
 {
 	struct tipc_subscription *sub = (struct tipc_subscription *)data;
-	struct tipc_subscriber *subscriber = sub->subscriber;
 
 	/* Notify subscriber of timeout */
 	tipc_subscrp_send_event(sub, sub->evt.s.seq.lower, sub->evt.s.seq.upper,
 				TIPC_SUBSCR_TIMEOUT, 0, 0);
 
-	spin_lock_bh(&subscriber->lock);
-	tipc_subscrp_delete(sub);
-	spin_unlock_bh(&subscriber->lock);
-
-	tipc_subscrb_put(subscriber);
+	tipc_subscrp_put(sub);
 }
 
 static void tipc_subscrb_kref_release(struct kref *kref)
 {
-	struct tipc_subscriber *subcriber = container_of(kref,
-					    struct tipc_subscriber, kref);
-
-	kfree(subcriber);
+	kfree(container_of(kref,struct tipc_subscriber, kref));
 }
 
 static void tipc_subscrb_put(struct tipc_subscriber *subscriber)
@@ -168,6 +164,59 @@ static void tipc_subscrb_get(struct tipc
 	kref_get(&subscriber->kref);
 }
 
+static void tipc_subscrp_kref_release(struct kref *kref)
+{
+	struct tipc_subscription *sub = container_of(kref,
+						     struct tipc_subscription,
+						     kref);
+	struct tipc_net *tn = net_generic(sub->net, tipc_net_id);
+	struct tipc_subscriber *subscriber = sub->subscriber;
+
+	spin_lock_bh(&subscriber->lock);
+	tipc_nametbl_unsubscribe(sub);
+	list_del(&sub->subscrp_list);
+	atomic_dec(&tn->subscription_count);
+	spin_unlock_bh(&subscriber->lock);
+	kfree(sub);
+	tipc_subscrb_put(subscriber);
+}
+
+static void tipc_subscrp_put(struct tipc_subscription *subscription)
+{
+	kref_put(&subscription->kref, tipc_subscrp_kref_release);
+}
+
+static void tipc_subscrp_get(struct tipc_subscription *subscription)
+{
+	kref_get(&subscription->kref);
+}
+
+/* tipc_subscrb_subscrp_delete - delete a specific subscription or all
+ * subscriptions for a given subscriber.
+ */
+static void tipc_subscrb_subscrp_delete(struct tipc_subscriber *subscriber,
+					struct tipc_subscr *s)
+{
+	struct list_head *subscription_list = &subscriber->subscrp_list;
+	struct tipc_subscription *sub, *temp;
+
+	spin_lock_bh(&subscriber->lock);
+	list_for_each_entry_safe(sub, temp, subscription_list,  subscrp_list) {
+		if (s && memcmp(s, &sub->evt.s, sizeof(struct tipc_subscr)))
+			continue;
+
+		tipc_subscrp_get(sub);
+		spin_unlock_bh(&subscriber->lock);
+		tipc_subscrp_delete(sub);
+		tipc_subscrp_put(sub);
+		spin_lock_bh(&subscriber->lock);
+
+		if (s)
+			break;
+	}
+	spin_unlock_bh(&subscriber->lock);
+}
+
 static struct tipc_subscriber *tipc_subscrb_create(int conid)
 {
 	struct tipc_subscriber *subscriber;
@@ -177,8 +226,8 @@ static struct tipc_subscriber *tipc_subs
 		pr_warn("Subscriber rejected, no memory\n");
 		return NULL;
 	}
-	kref_init(&subscriber->kref);
 	INIT_LIST_HEAD(&subscriber->subscrp_list);
+	kref_init(&subscriber->kref);
 	subscriber->conid = conid;
 	spin_lock_init(&subscriber->lock);
 
@@ -187,55 +236,22 @@ static struct tipc_subscriber *tipc_subs
 
 static void tipc_subscrb_delete(struct tipc_subscriber *subscriber)
 {
-	struct tipc_subscription *sub, *temp;
-	u32 timeout;
-
-	spin_lock_bh(&subscriber->lock);
-	/* Destroy any existing subscriptions for subscriber */
-	list_for_each_entry_safe(sub, temp, &subscriber->subscrp_list,
-				 subscrp_list) {
-		timeout = htohl(sub->evt.s.timeout, sub->swap);
-		if ((timeout == TIPC_WAIT_FOREVER) || del_timer(&sub->timer)) {
-			tipc_subscrp_delete(sub);
-			tipc_subscrb_put(subscriber);
-		}
-	}
-	spin_unlock_bh(&subscriber->lock);
-
+	tipc_subscrb_subscrp_delete(subscriber, NULL);
 	tipc_subscrb_put(subscriber);
 }
 
 static void tipc_subscrp_delete(struct tipc_subscription *sub)
 {
-	struct tipc_net *tn = net_generic(sub->net, tipc_net_id);
+	u32 timeout = htohl(sub->evt.s.timeout, sub->swap);
 
-	tipc_nametbl_unsubscribe(sub);
-	list_del(&sub->subscrp_list);
-	kfree(sub);
-	atomic_dec(&tn->subscription_count);
+	if (timeout == TIPC_WAIT_FOREVER || del_timer(&sub->timer))
+		tipc_subscrp_put(sub);
 }
 
 static void tipc_subscrp_cancel(struct tipc_subscr *s,
 				struct tipc_subscriber *subscriber)
 {
-	struct tipc_subscription *sub, *temp;
-	u32 timeout;
-
-	spin_lock_bh(&subscriber->lock);
-	/* Find first matching subscription, exit if not found */
-	list_for_each_entry_safe(sub, temp, &subscriber->subscrp_list,
-				 subscrp_list) {
-		if (!memcmp(s, &sub->evt.s, sizeof(struct tipc_subscr))) {
-			timeout = htohl(sub->evt.s.timeout, sub->swap);
-			if ((timeout == TIPC_WAIT_FOREVER) ||
-			    del_timer(&sub->timer)) {
-				tipc_subscrp_delete(sub);
-				tipc_subscrb_put(subscriber);
-			}
-			break;
-		}
-	}
-	spin_unlock_bh(&subscriber->lock);
+	tipc_subscrb_subscrp_delete(subscriber, s);
 }
 
 static struct tipc_subscription *tipc_subscrp_create(struct net *net,
@@ -272,6 +288,7 @@ static struct tipc_subscription *tipc_su
 	sub->swap = swap;
 	memcpy(&sub->evt.s, s, sizeof(*s));
 	atomic_inc(&tn->subscription_count);
+	kref_init(&sub->kref);
 	return sub;
 }
 
@@ -288,17 +305,16 @@ static void tipc_subscrp_subscribe(struc
 
 	spin_lock_bh(&subscriber->lock);
 	list_add(&sub->subscrp_list, &subscriber->subscrp_list);
-	tipc_subscrb_get(subscriber);
 	sub->subscriber = subscriber;
 	tipc_nametbl_subscribe(sub);
+	tipc_subscrb_get(subscriber);
 	spin_unlock_bh(&subscriber->lock);
 
+	setup_timer(&sub->timer, tipc_subscrp_timeout, (unsigned long)sub);
 	timeout = htohl(sub->evt.s.timeout, swap);
-	if (timeout == TIPC_WAIT_FOREVER)
-		return;
 
-	setup_timer(&sub->timer, tipc_subscrp_timeout, (unsigned long)sub);
-	mod_timer(&sub->timer, jiffies + msecs_to_jiffies(timeout));
+	if (timeout != TIPC_WAIT_FOREVER)
+		mod_timer(&sub->timer, jiffies + msecs_to_jiffies(timeout));
 }
 
 /* Handle one termination request for the subscriber */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/tipc/subscr.h linux-libre-4.9.52-gnu/net/tipc/subscr.h
--- linux-libre-4.9-gnu/net/tipc/subscr.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/tipc/subscr.h	2017-09-27 08:40:05.000000000 -0400
@@ -57,6 +57,7 @@ struct tipc_subscriber;
  * @evt: template for events generated by subscription
  */
 struct tipc_subscription {
+	struct kref kref;
 	struct tipc_subscriber *subscriber;
 	struct net *net;
 	struct timer_list timer;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/unix/af_unix.c linux-libre-4.9.52-gnu/net/unix/af_unix.c
--- linux-libre-4.9-gnu/net/unix/af_unix.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/unix/af_unix.c	2017-09-27 08:40:05.000000000 -0400
@@ -995,9 +995,11 @@ static int unix_bind(struct socket *sock
 	unsigned int hash;
 	struct unix_address *addr;
 	struct hlist_head *list;
+	struct path path = { NULL, NULL };
 
 	err = -EINVAL;
-	if (sunaddr->sun_family != AF_UNIX)
+	if (addr_len < offsetofend(struct sockaddr_un, sun_family) ||
+	    sunaddr->sun_family != AF_UNIX)
 		goto out;
 
 	if (addr_len == sizeof(short)) {
@@ -1010,9 +1012,20 @@ static int unix_bind(struct socket *sock
 		goto out;
 	addr_len = err;
 
+	if (sun_path[0]) {
+		umode_t mode = S_IFSOCK |
+		       (SOCK_INODE(sock)->i_mode & ~current_umask());
+		err = unix_mknod(sun_path, mode, &path);
+		if (err) {
+			if (err == -EEXIST)
+				err = -EADDRINUSE;
+			goto out;
+		}
+	}
+
 	err = mutex_lock_interruptible(&u->bindlock);
 	if (err)
-		goto out;
+		goto out_put;
 
 	err = -EINVAL;
 	if (u->addr)
@@ -1029,16 +1042,6 @@ static int unix_bind(struct socket *sock
 	atomic_set(&addr->refcnt, 1);
 
 	if (sun_path[0]) {
-		struct path path;
-		umode_t mode = S_IFSOCK |
-		       (SOCK_INODE(sock)->i_mode & ~current_umask());
-		err = unix_mknod(sun_path, mode, &path);
-		if (err) {
-			if (err == -EEXIST)
-				err = -EADDRINUSE;
-			unix_release_addr(addr);
-			goto out_up;
-		}
 		addr->hash = UNIX_HASH_SIZE;
 		hash = d_real_inode(path.dentry)->i_ino & (UNIX_HASH_SIZE - 1);
 		spin_lock(&unix_table_lock);
@@ -1065,6 +1068,9 @@ out_unlock:
 	spin_unlock(&unix_table_lock);
 out_up:
 	mutex_unlock(&u->bindlock);
+out_put:
+	if (err)
+		path_put(&path);
 out:
 	return err;
 }
@@ -1104,6 +1110,10 @@ static int unix_dgram_connect(struct soc
 	unsigned int hash;
 	int err;
 
+	err = -EINVAL;
+	if (alen < offsetofend(struct sockaddr, sa_family))
+		goto out;
+
 	if (addr->sa_family != AF_UNSPEC) {
 		err = unix_mkname(sunaddr, alen, &hash);
 		if (err < 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/unix/garbage.c linux-libre-4.9.52-gnu/net/unix/garbage.c
--- linux-libre-4.9-gnu/net/unix/garbage.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/unix/garbage.c	2017-09-27 08:40:05.000000000 -0400
@@ -146,6 +146,7 @@ void unix_notinflight(struct user_struct
 	if (s) {
 		struct unix_sock *u = unix_sk(s);
 
+		BUG_ON(!atomic_long_read(&u->inflight));
 		BUG_ON(list_empty(&u->link));
 
 		if (atomic_long_dec_and_test(&u->inflight))
@@ -341,6 +342,14 @@ void unix_gc(void)
 	}
 	list_del(&cursor);
 
+	/* Now gc_candidates contains only garbage.  Restore original
+	 * inflight counters for these as well, and remove the skbuffs
+	 * which are creating the cycle(s).
+	 */
+	skb_queue_head_init(&hitlist);
+	list_for_each_entry(u, &gc_candidates, link)
+		scan_children(&u->sk, inc_inflight, &hitlist);
+
 	/* not_cycle_list contains those sockets which do not make up a
 	 * cycle.  Restore these to the inflight list.
 	 */
@@ -350,14 +359,6 @@ void unix_gc(void)
 		list_move_tail(&u->link, &gc_inflight_list);
 	}
 
-	/* Now gc_candidates contains only garbage.  Restore original
-	 * inflight counters for these as well, and remove the skbuffs
-	 * which are creating the cycle(s).
-	 */
-	skb_queue_head_init(&hitlist);
-	list_for_each_entry(u, &gc_candidates, link)
-	scan_children(&u->sk, inc_inflight, &hitlist);
-
 	spin_unlock(&unix_gc_lock);
 
 	/* Here we are. Hitlist is filled. Die. */
diff -druNp --no-dereference linux-libre-4.9-gnu/net/vmw_vsock/virtio_transport_common.c linux-libre-4.9.52-gnu/net/vmw_vsock/virtio_transport_common.c
--- linux-libre-4.9-gnu/net/vmw_vsock/virtio_transport_common.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/vmw_vsock/virtio_transport_common.c	2017-09-27 08:40:05.000000000 -0400
@@ -606,9 +606,9 @@ static int virtio_transport_reset_no_soc
 		return 0;
 
 	pkt = virtio_transport_alloc_pkt(&info, 0,
-					 le32_to_cpu(pkt->hdr.dst_cid),
+					 le64_to_cpu(pkt->hdr.dst_cid),
 					 le32_to_cpu(pkt->hdr.dst_port),
-					 le32_to_cpu(pkt->hdr.src_cid),
+					 le64_to_cpu(pkt->hdr.src_cid),
 					 le32_to_cpu(pkt->hdr.src_port));
 	if (!pkt)
 		return -ENOMEM;
@@ -823,7 +823,7 @@ virtio_transport_send_response(struct vs
 	struct virtio_vsock_pkt_info info = {
 		.op = VIRTIO_VSOCK_OP_RESPONSE,
 		.type = VIRTIO_VSOCK_TYPE_STREAM,
-		.remote_cid = le32_to_cpu(pkt->hdr.src_cid),
+		.remote_cid = le64_to_cpu(pkt->hdr.src_cid),
 		.remote_port = le32_to_cpu(pkt->hdr.src_port),
 		.reply = true,
 	};
@@ -863,9 +863,9 @@ virtio_transport_recv_listen(struct sock
 	child->sk_state = SS_CONNECTED;
 
 	vchild = vsock_sk(child);
-	vsock_addr_init(&vchild->local_addr, le32_to_cpu(pkt->hdr.dst_cid),
+	vsock_addr_init(&vchild->local_addr, le64_to_cpu(pkt->hdr.dst_cid),
 			le32_to_cpu(pkt->hdr.dst_port));
-	vsock_addr_init(&vchild->remote_addr, le32_to_cpu(pkt->hdr.src_cid),
+	vsock_addr_init(&vchild->remote_addr, le64_to_cpu(pkt->hdr.src_cid),
 			le32_to_cpu(pkt->hdr.src_port));
 
 	vsock_insert_connected(vchild);
@@ -904,9 +904,9 @@ void virtio_transport_recv_pkt(struct vi
 	struct sock *sk;
 	bool space_available;
 
-	vsock_addr_init(&src, le32_to_cpu(pkt->hdr.src_cid),
+	vsock_addr_init(&src, le64_to_cpu(pkt->hdr.src_cid),
 			le32_to_cpu(pkt->hdr.src_port));
-	vsock_addr_init(&dst, le32_to_cpu(pkt->hdr.dst_cid),
+	vsock_addr_init(&dst, le64_to_cpu(pkt->hdr.dst_cid),
 			le32_to_cpu(pkt->hdr.dst_port));
 
 	trace_virtio_transport_recv_pkt(src.svm_cid, src.svm_port,
diff -druNp --no-dereference linux-libre-4.9-gnu/net/wireless/core.h linux-libre-4.9.52-gnu/net/wireless/core.h
--- linux-libre-4.9-gnu/net/wireless/core.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/wireless/core.h	2017-09-27 08:40:05.000000000 -0400
@@ -410,6 +410,7 @@ void cfg80211_sme_disassoc(struct wirele
 void cfg80211_sme_deauth(struct wireless_dev *wdev);
 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
+void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
 
 /* internal helpers */
 bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/wireless/mlme.c linux-libre-4.9.52-gnu/net/wireless/mlme.c
--- linux-libre-4.9-gnu/net/wireless/mlme.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/wireless/mlme.c	2017-09-27 08:40:05.000000000 -0400
@@ -149,6 +149,18 @@ void cfg80211_assoc_timeout(struct net_d
 }
 EXPORT_SYMBOL(cfg80211_assoc_timeout);
 
+void cfg80211_abandon_assoc(struct net_device *dev, struct cfg80211_bss *bss)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+
+	cfg80211_sme_abandon_assoc(wdev);
+
+	cfg80211_unhold_bss(bss_from_pub(bss));
+	cfg80211_put_bss(wiphy, bss);
+}
+EXPORT_SYMBOL(cfg80211_abandon_assoc);
+
 void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/wireless/nl80211.c linux-libre-4.9.52-gnu/net/wireless/nl80211.c
--- linux-libre-4.9-gnu/net/wireless/nl80211.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/wireless/nl80211.c	2017-09-27 08:40:05.000000000 -0400
@@ -305,8 +305,7 @@ static const struct nla_policy nl80211_p
 	[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
 	[NL80211_ATTR_PID] = { .type = NLA_U32 },
 	[NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
-	[NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
-				 .len = WLAN_PMKID_LEN },
+	[NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
 	[NL80211_ATTR_DURATION] = { .type = NLA_U32 },
 	[NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
 	[NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
@@ -362,6 +361,7 @@ static const struct nla_policy nl80211_p
 	[NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
 	[NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
 	[NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
+	[NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
 	[NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
 	[NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
 	[NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
@@ -414,6 +414,7 @@ static const struct nla_policy nl80211_p
 	[NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
 	[NL80211_ATTR_NAN_DUAL] = { .type = NLA_U8 },
 	[NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
+	[NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
 };
 
 /* policy for the key attributes */
@@ -511,7 +512,7 @@ nl80211_bss_select_policy[NL80211_BSS_SE
 static const struct nla_policy
 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
 	[NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
-	[NL80211_NAN_FUNC_SERVICE_ID] = { .type = NLA_BINARY,
+	[NL80211_NAN_FUNC_SERVICE_ID] = {
 				    .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
 	[NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
 	[NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
@@ -547,21 +548,17 @@ static int nl80211_prepare_wdev_dump(str
 {
 	int err;
 
-	rtnl_lock();
-
 	if (!cb->args[0]) {
 		err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
 				  nl80211_fam.attrbuf, nl80211_fam.maxattr,
 				  nl80211_policy);
 		if (err)
-			goto out_unlock;
+			return err;
 
 		*wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
 						   nl80211_fam.attrbuf);
-		if (IS_ERR(*wdev)) {
-			err = PTR_ERR(*wdev);
-			goto out_unlock;
-		}
+		if (IS_ERR(*wdev))
+			return PTR_ERR(*wdev);
 		*rdev = wiphy_to_rdev((*wdev)->wiphy);
 		/* 0 is the first index - add 1 to parse only once */
 		cb->args[0] = (*rdev)->wiphy_idx + 1;
@@ -571,10 +568,8 @@ static int nl80211_prepare_wdev_dump(str
 		struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
 		struct wireless_dev *tmp;
 
-		if (!wiphy) {
-			err = -ENODEV;
-			goto out_unlock;
-		}
+		if (!wiphy)
+			return -ENODEV;
 		*rdev = wiphy_to_rdev(wiphy);
 		*wdev = NULL;
 
@@ -585,21 +580,11 @@ static int nl80211_prepare_wdev_dump(str
 			}
 		}
 
-		if (!*wdev) {
-			err = -ENODEV;
-			goto out_unlock;
-		}
+		if (!*wdev)
+			return -ENODEV;
 	}
 
 	return 0;
- out_unlock:
-	rtnl_unlock();
-	return err;
-}
-
-static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
-{
-	rtnl_unlock();
 }
 
 /* IE validation */
@@ -2583,17 +2568,17 @@ static int nl80211_dump_interface(struct
 	int filter_wiphy = -1;
 	struct cfg80211_registered_device *rdev;
 	struct wireless_dev *wdev;
+	int ret;
 
 	rtnl_lock();
 	if (!cb->args[2]) {
 		struct nl80211_dump_wiphy_state state = {
 			.filter_wiphy = -1,
 		};
-		int ret;
 
 		ret = nl80211_dump_wiphy_parse(skb, cb, &state);
 		if (ret)
-			return ret;
+			goto out_unlock;
 
 		filter_wiphy = state.filter_wiphy;
 
@@ -2638,12 +2623,14 @@ static int nl80211_dump_interface(struct
 		wp_idx++;
 	}
  out:
-	rtnl_unlock();
-
 	cb->args[0] = wp_idx;
 	cb->args[1] = if_idx;
 
-	return skb->len;
+	ret = skb->len;
+ out_unlock:
+	rtnl_unlock();
+
+	return ret;
 }
 
 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
@@ -4370,9 +4357,10 @@ static int nl80211_dump_station(struct s
 	int sta_idx = cb->args[2];
 	int err;
 
+	rtnl_lock();
 	err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
 	if (err)
-		return err;
+		goto out_err;
 
 	if (!wdev->netdev) {
 		err = -EINVAL;
@@ -4407,7 +4395,7 @@ static int nl80211_dump_station(struct s
 	cb->args[2] = sta_idx;
 	err = skb->len;
  out_err:
-	nl80211_finish_wdev_dump(rdev);
+	rtnl_unlock();
 
 	return err;
 }
@@ -5178,9 +5166,10 @@ static int nl80211_dump_mpath(struct sk_
 	int path_idx = cb->args[2];
 	int err;
 
+	rtnl_lock();
 	err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
 	if (err)
-		return err;
+		goto out_err;
 
 	if (!rdev->ops->dump_mpath) {
 		err = -EOPNOTSUPP;
@@ -5213,7 +5202,7 @@ static int nl80211_dump_mpath(struct sk_
 	cb->args[2] = path_idx;
 	err = skb->len;
  out_err:
-	nl80211_finish_wdev_dump(rdev);
+	rtnl_unlock();
 	return err;
 }
 
@@ -5373,9 +5362,10 @@ static int nl80211_dump_mpp(struct sk_bu
 	int path_idx = cb->args[2];
 	int err;
 
+	rtnl_lock();
 	err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
 	if (err)
-		return err;
+		goto out_err;
 
 	if (!rdev->ops->dump_mpp) {
 		err = -EOPNOTSUPP;
@@ -5408,7 +5398,7 @@ static int nl80211_dump_mpp(struct sk_bu
 	cb->args[2] = path_idx;
 	err = skb->len;
  out_err:
-	nl80211_finish_wdev_dump(rdev);
+	rtnl_unlock();
 	return err;
 }
 
@@ -5873,6 +5863,7 @@ do {									    \
 			break;
 		}
 		cfg->ht_opmode = ht_opmode;
+		mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
 	}
 	FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
 				  1, 65535, mask,
@@ -6335,6 +6326,10 @@ static int validate_scan_freqs(struct nl
 	struct nlattr *attr1, *attr2;
 	int n_channels = 0, tmp1, tmp2;
 
+	nla_for_each_nested(attr1, freqs, tmp1)
+		if (nla_len(attr1) != sizeof(u32))
+			return 0;
+
 	nla_for_each_nested(attr1, freqs, tmp1) {
 		n_channels++;
 		/*
@@ -6677,7 +6672,20 @@ static int nl80211_trigger_scan(struct s
 	request->no_cck =
 		nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
 
-	if (info->attrs[NL80211_ATTR_MAC])
+	/* Initial implementation used NL80211_ATTR_MAC to set the specific
+	 * BSSID to scan for. This was problematic because that same attribute
+	 * was already used for another purpose (local random MAC address). The
+	 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
+	 * compatibility with older userspace components, also use the
+	 * NL80211_ATTR_MAC value here if it can be determined to be used for
+	 * the specific BSSID use case instead of the random MAC address
+	 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
+	 */
+	if (info->attrs[NL80211_ATTR_BSSID])
+		memcpy(request->bssid,
+		       nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
+	else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
+		 info->attrs[NL80211_ATTR_MAC])
 		memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
 		       ETH_ALEN);
 	else
@@ -7541,9 +7549,12 @@ static int nl80211_dump_scan(struct sk_b
 	int start = cb->args[2], idx = 0;
 	int err;
 
+	rtnl_lock();
 	err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
-	if (err)
+	if (err) {
+		rtnl_unlock();
 		return err;
+	}
 
 	wdev_lock(wdev);
 	spin_lock_bh(&rdev->bss_lock);
@@ -7566,7 +7577,7 @@ static int nl80211_dump_scan(struct sk_b
 	wdev_unlock(wdev);
 
 	cb->args[2] = idx;
-	nl80211_finish_wdev_dump(rdev);
+	rtnl_unlock();
 
 	return skb->len;
 }
@@ -7650,9 +7661,10 @@ static int nl80211_dump_survey(struct sk
 	int res;
 	bool radio_stats;
 
+	rtnl_lock();
 	res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
 	if (res)
-		return res;
+		goto out_err;
 
 	/* prepare_wdev_dump parsed the attributes */
 	radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
@@ -7693,7 +7705,7 @@ static int nl80211_dump_survey(struct sk
 	cb->args[2] = survey_idx;
 	res = skb->len;
  out_err:
-	nl80211_finish_wdev_dump(rdev);
+	rtnl_unlock();
 	return res;
 }
 
@@ -11284,17 +11296,13 @@ static int nl80211_prepare_vendor_dump(s
 	void *data = NULL;
 	unsigned int data_len = 0;
 
-	rtnl_lock();
-
 	if (cb->args[0]) {
 		/* subtract the 1 again here */
 		struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
 		struct wireless_dev *tmp;
 
-		if (!wiphy) {
-			err = -ENODEV;
-			goto out_unlock;
-		}
+		if (!wiphy)
+			return -ENODEV;
 		*rdev = wiphy_to_rdev(wiphy);
 		*wdev = NULL;
 
@@ -11315,13 +11323,11 @@ static int nl80211_prepare_vendor_dump(s
 			  nl80211_fam.attrbuf, nl80211_fam.maxattr,
 			  nl80211_policy);
 	if (err)
-		goto out_unlock;
+		return err;
 
 	if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
-	    !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
-		err = -EINVAL;
-		goto out_unlock;
-	}
+	    !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
+		return -EINVAL;
 
 	*wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
 					   nl80211_fam.attrbuf);
@@ -11330,10 +11336,8 @@ static int nl80211_prepare_vendor_dump(s
 
 	*rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
 					   nl80211_fam.attrbuf);
-	if (IS_ERR(*rdev)) {
-		err = PTR_ERR(*rdev);
-		goto out_unlock;
-	}
+	if (IS_ERR(*rdev))
+		return PTR_ERR(*rdev);
 
 	vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
 	subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
@@ -11346,19 +11350,15 @@ static int nl80211_prepare_vendor_dump(s
 		if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
 			continue;
 
-		if (!vcmd->dumpit) {
-			err = -EOPNOTSUPP;
-			goto out_unlock;
-		}
+		if (!vcmd->dumpit)
+			return -EOPNOTSUPP;
 
 		vcmd_idx = i;
 		break;
 	}
 
-	if (vcmd_idx < 0) {
-		err = -EOPNOTSUPP;
-		goto out_unlock;
-	}
+	if (vcmd_idx < 0)
+		return -EOPNOTSUPP;
 
 	if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
 		data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
@@ -11375,9 +11375,6 @@ static int nl80211_prepare_vendor_dump(s
 
 	/* keep rtnl locked in successful case */
 	return 0;
- out_unlock:
-	rtnl_unlock();
-	return err;
 }
 
 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
@@ -11392,9 +11389,10 @@ static int nl80211_vendor_cmd_dump(struc
 	int err;
 	struct nlattr *vendor_data;
 
+	rtnl_lock();
 	err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
 	if (err)
-		return err;
+		goto out;
 
 	vcmd_idx = cb->args[2];
 	data = (void *)cb->args[3];
@@ -11403,18 +11401,26 @@ static int nl80211_vendor_cmd_dump(struc
 
 	if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
 			   WIPHY_VENDOR_CMD_NEED_NETDEV)) {
-		if (!wdev)
-			return -EINVAL;
+		if (!wdev) {
+			err = -EINVAL;
+			goto out;
+		}
 		if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
-		    !wdev->netdev)
-			return -EINVAL;
+		    !wdev->netdev) {
+			err = -EINVAL;
+			goto out;
+		}
 
 		if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
 			if (wdev->netdev &&
-			    !netif_running(wdev->netdev))
-				return -ENETDOWN;
-			if (!wdev->netdev && !wdev->p2p_started)
-				return -ENETDOWN;
+			    !netif_running(wdev->netdev)) {
+				err = -ENETDOWN;
+				goto out;
+			}
+			if (!wdev->netdev && !wdev->p2p_started) {
+				err = -ENETDOWN;
+				goto out;
+			}
 		}
 	}
 
@@ -14388,13 +14394,17 @@ static int nl80211_netlink_notify(struct
 
 	list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
 		bool schedule_destroy_work = false;
-		bool schedule_scan_stop = false;
 		struct cfg80211_sched_scan_request *sched_scan_req =
 			rcu_dereference(rdev->sched_scan_req);
 
 		if (sched_scan_req && notify->portid &&
-		    sched_scan_req->owner_nlportid == notify->portid)
-			schedule_scan_stop = true;
+		    sched_scan_req->owner_nlportid == notify->portid) {
+			sched_scan_req->owner_nlportid = 0;
+
+			if (rdev->ops->sched_scan_stop &&
+			    rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
+				schedule_work(&rdev->sched_scan_stop_wk);
+		}
 
 		list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
 			cfg80211_mlme_unregister_socket(wdev, notify->portid);
@@ -14425,12 +14435,6 @@ static int nl80211_netlink_notify(struct
 				spin_unlock(&rdev->destroy_list_lock);
 				schedule_work(&rdev->destroy_work);
 			}
-		} else if (schedule_scan_stop) {
-			sched_scan_req->owner_nlportid = 0;
-
-			if (rdev->ops->sched_scan_stop &&
-			    rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
-				schedule_work(&rdev->sched_scan_stop_wk);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/net/wireless/sme.c linux-libre-4.9.52-gnu/net/wireless/sme.c
--- linux-libre-4.9-gnu/net/wireless/sme.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/wireless/sme.c	2017-09-27 08:40:05.000000000 -0400
@@ -39,6 +39,7 @@ struct cfg80211_conn {
 		CFG80211_CONN_ASSOCIATING,
 		CFG80211_CONN_ASSOC_FAILED,
 		CFG80211_CONN_DEAUTH,
+		CFG80211_CONN_ABANDON,
 		CFG80211_CONN_CONNECTED,
 	} state;
 	u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
@@ -206,6 +207,8 @@ static int cfg80211_conn_do_work(struct
 		cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
 				     NULL, 0,
 				     WLAN_REASON_DEAUTH_LEAVING, false);
+		/* fall through */
+	case CFG80211_CONN_ABANDON:
 		/* free directly, disconnected event already sent */
 		cfg80211_sme_free(wdev);
 		return 0;
@@ -423,6 +426,17 @@ void cfg80211_sme_assoc_timeout(struct w
 	schedule_work(&rdev->conn_work);
 }
 
+void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+
+	if (!wdev->conn)
+		return;
+
+	wdev->conn->state = CFG80211_CONN_ABANDON;
+	schedule_work(&rdev->conn_work);
+}
+
 static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev,
 				     const u8 *ies, size_t ies_len,
 				     const u8 **out_ies, size_t *out_ies_len)
diff -druNp --no-dereference linux-libre-4.9-gnu/net/wireless/sysfs.c linux-libre-4.9.52-gnu/net/wireless/sysfs.c
--- linux-libre-4.9-gnu/net/wireless/sysfs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/wireless/sysfs.c	2017-09-27 08:40:05.000000000 -0400
@@ -130,12 +130,10 @@ static int wiphy_resume(struct device *d
 	/* Age scan results with time spent in suspend */
 	cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
 
-	if (rdev->ops->resume) {
-		rtnl_lock();
-		if (rdev->wiphy.registered)
-			ret = rdev_resume(rdev);
-		rtnl_unlock();
-	}
+	rtnl_lock();
+	if (rdev->wiphy.registered && rdev->ops->resume)
+		ret = rdev_resume(rdev);
+	rtnl_unlock();
 
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/net/wireless/util.c linux-libre-4.9.52-gnu/net/wireless/util.c
--- linux-libre-4.9-gnu/net/wireless/util.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/wireless/util.c	2017-09-27 08:40:05.000000000 -0400
@@ -454,6 +454,8 @@ int ieee80211_data_to_8023_exthdr(struct
 	if (iftype == NL80211_IFTYPE_MESH_POINT)
 		skb_copy_bits(skb, hdrlen, &mesh_flags, 1);
 
+	mesh_flags &= MESH_FLAGS_AE;
+
 	switch (hdr->frame_control &
 		cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
 	case cpu_to_le16(IEEE80211_FCTL_TODS):
@@ -469,9 +471,9 @@ int ieee80211_data_to_8023_exthdr(struct
 			     iftype != NL80211_IFTYPE_STATION))
 			return -1;
 		if (iftype == NL80211_IFTYPE_MESH_POINT) {
-			if (mesh_flags & MESH_FLAGS_AE_A4)
+			if (mesh_flags == MESH_FLAGS_AE_A4)
 				return -1;
-			if (mesh_flags & MESH_FLAGS_AE_A5_A6) {
+			if (mesh_flags == MESH_FLAGS_AE_A5_A6) {
 				skb_copy_bits(skb, hdrlen +
 					offsetof(struct ieee80211s_hdr, eaddr1),
 					tmp.h_dest, 2 * ETH_ALEN);
@@ -487,9 +489,9 @@ int ieee80211_data_to_8023_exthdr(struct
 		     ether_addr_equal(tmp.h_source, addr)))
 			return -1;
 		if (iftype == NL80211_IFTYPE_MESH_POINT) {
-			if (mesh_flags & MESH_FLAGS_AE_A5_A6)
+			if (mesh_flags == MESH_FLAGS_AE_A5_A6)
 				return -1;
-			if (mesh_flags & MESH_FLAGS_AE_A4)
+			if (mesh_flags == MESH_FLAGS_AE_A4)
 				skb_copy_bits(skb, hdrlen +
 					offsetof(struct ieee80211s_hdr, eaddr1),
 					tmp.h_source, ETH_ALEN);
diff -druNp --no-dereference linux-libre-4.9-gnu/net/xfrm/xfrm_policy.c linux-libre-4.9.52-gnu/net/xfrm/xfrm_policy.c
--- linux-libre-4.9-gnu/net/xfrm/xfrm_policy.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/xfrm/xfrm_policy.c	2017-09-27 08:40:05.000000000 -0400
@@ -1248,7 +1248,7 @@ static inline int policy_to_flow_dir(int
 }
 
 static struct xfrm_policy *xfrm_sk_policy_lookup(const struct sock *sk, int dir,
-						 const struct flowi *fl)
+						 const struct flowi *fl, u16 family)
 {
 	struct xfrm_policy *pol;
 
@@ -1256,8 +1256,7 @@ static struct xfrm_policy *xfrm_sk_polic
  again:
 	pol = rcu_dereference(sk->sk_policy[dir]);
 	if (pol != NULL) {
-		bool match = xfrm_selector_match(&pol->selector, fl,
-						 sk->sk_family);
+		bool match = xfrm_selector_match(&pol->selector, fl, family);
 		int err = 0;
 
 		if (match) {
@@ -1808,43 +1807,6 @@ free_dst:
 	goto out;
 }
 
-#ifdef CONFIG_XFRM_SUB_POLICY
-static int xfrm_dst_alloc_copy(void **target, const void *src, int size)
-{
-	if (!*target) {
-		*target = kmalloc(size, GFP_ATOMIC);
-		if (!*target)
-			return -ENOMEM;
-	}
-
-	memcpy(*target, src, size);
-	return 0;
-}
-#endif
-
-static int xfrm_dst_update_parent(struct dst_entry *dst,
-				  const struct xfrm_selector *sel)
-{
-#ifdef CONFIG_XFRM_SUB_POLICY
-	struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
-	return xfrm_dst_alloc_copy((void **)&(xdst->partner),
-				   sel, sizeof(*sel));
-#else
-	return 0;
-#endif
-}
-
-static int xfrm_dst_update_origin(struct dst_entry *dst,
-				  const struct flowi *fl)
-{
-#ifdef CONFIG_XFRM_SUB_POLICY
-	struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
-	return xfrm_dst_alloc_copy((void **)&(xdst->origin), fl, sizeof(*fl));
-#else
-	return 0;
-#endif
-}
-
 static int xfrm_expand_policies(const struct flowi *fl, u16 family,
 				struct xfrm_policy **pols,
 				int *num_pols, int *num_xfrms)
@@ -1916,16 +1878,6 @@ xfrm_resolve_and_create_bundle(struct xf
 
 	xdst = (struct xfrm_dst *)dst;
 	xdst->num_xfrms = err;
-	if (num_pols > 1)
-		err = xfrm_dst_update_parent(dst, &pols[1]->selector);
-	else
-		err = xfrm_dst_update_origin(dst, fl);
-	if (unlikely(err)) {
-		dst_free(dst);
-		XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
-		return ERR_PTR(err);
-	}
-
 	xdst->num_pols = num_pols;
 	memcpy(xdst->pols, pols, sizeof(struct xfrm_policy *) * num_pols);
 	xdst->policy_genid = atomic_read(&pols[0]->genid);
@@ -2253,7 +2205,7 @@ struct dst_entry *xfrm_lookup(struct net
 	sk = sk_const_to_full_sk(sk);
 	if (sk && sk->sk_policy[XFRM_POLICY_OUT]) {
 		num_pols = 1;
-		pols[0] = xfrm_sk_policy_lookup(sk, XFRM_POLICY_OUT, fl);
+		pols[0] = xfrm_sk_policy_lookup(sk, XFRM_POLICY_OUT, fl, family);
 		err = xfrm_expand_policies(fl, family, pols,
 					   &num_pols, &num_xfrms);
 		if (err < 0)
@@ -2532,7 +2484,7 @@ int __xfrm_policy_check(struct sock *sk,
 	pol = NULL;
 	sk = sk_to_full_sk(sk);
 	if (sk && sk->sk_policy[dir]) {
-		pol = xfrm_sk_policy_lookup(sk, dir, &fl);
+		pol = xfrm_sk_policy_lookup(sk, dir, &fl, family);
 		if (IS_ERR(pol)) {
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMINPOLERROR);
 			return 0;
@@ -3062,6 +3014,11 @@ static int __net_init xfrm_net_init(stru
 {
 	int rv;
 
+	/* Initialize the per-net locks here */
+	spin_lock_init(&net->xfrm.xfrm_state_lock);
+	spin_lock_init(&net->xfrm.xfrm_policy_lock);
+	mutex_init(&net->xfrm.xfrm_cfg_mutex);
+
 	rv = xfrm_statistics_init(net);
 	if (rv < 0)
 		goto out_statistics;
@@ -3078,11 +3035,6 @@ static int __net_init xfrm_net_init(stru
 	if (rv < 0)
 		goto out;
 
-	/* Initialize the per-net locks here */
-	spin_lock_init(&net->xfrm.xfrm_state_lock);
-	spin_lock_init(&net->xfrm.xfrm_policy_lock);
-	mutex_init(&net->xfrm.xfrm_cfg_mutex);
-
 	return 0;
 
 out:
@@ -3356,9 +3308,15 @@ int xfrm_migrate(const struct xfrm_selec
 	struct xfrm_state *x_new[XFRM_MAX_DEPTH];
 	struct xfrm_migrate *mp;
 
+	/* Stage 0 - sanity checks */
 	if ((err = xfrm_migrate_check(m, num_migrate)) < 0)
 		goto out;
 
+	if (dir >= XFRM_POLICY_MAX) {
+		err = -EINVAL;
+		goto out;
+	}
+
 	/* Stage 1 - find policy */
 	if ((pol = xfrm_migrate_policy_find(sel, dir, type, net)) == NULL) {
 		err = -ENOENT;
diff -druNp --no-dereference linux-libre-4.9-gnu/net/xfrm/xfrm_user.c linux-libre-4.9.52-gnu/net/xfrm/xfrm_user.c
--- linux-libre-4.9-gnu/net/xfrm/xfrm_user.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/net/xfrm/xfrm_user.c	2017-09-27 08:40:05.000000000 -0400
@@ -412,7 +412,14 @@ static inline int xfrm_replay_verify_len
 	up = nla_data(rp);
 	ulen = xfrm_replay_state_esn_len(up);
 
-	if (nla_len(rp) < ulen || xfrm_replay_state_esn_len(replay_esn) != ulen)
+	/* Check the overall length and the internal bitmap length to avoid
+	 * potential overflow. */
+	if (nla_len(rp) < ulen ||
+	    xfrm_replay_state_esn_len(replay_esn) != ulen ||
+	    replay_esn->bmp_len != up->bmp_len)
+		return -EINVAL;
+
+	if (up->replay_window > up->bmp_len * sizeof(__u32) * 8)
 		return -EINVAL;
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/samples/bpf/test_verifier.c linux-libre-4.9.52-gnu/samples/bpf/test_verifier.c
--- linux-libre-4.9-gnu/samples/bpf/test_verifier.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/samples/bpf/test_verifier.c	2017-09-27 08:40:05.000000000 -0400
@@ -1218,16 +1218,22 @@ static struct bpf_test tests[] = {
 		.result = ACCEPT,
 	},
 	{
-		"unpriv: obfuscate stack pointer",
+		"stack pointer arithmetic",
 		.insns = {
-			BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
-			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
-			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+			BPF_MOV64_IMM(BPF_REG_1, 4),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1),
+			BPF_ST_MEM(0, BPF_REG_2, 4, 0),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
+			BPF_ST_MEM(0, BPF_REG_2, 4, 0),
 			BPF_MOV64_IMM(BPF_REG_0, 0),
 			BPF_EXIT_INSN(),
 		},
-		.errstr_unpriv = "R2 pointer arithmetic",
-		.result_unpriv = REJECT,
 		.result = ACCEPT,
 	},
 	{
diff -druNp --no-dereference linux-libre-4.9-gnu/samples/seccomp/bpf-helper.h linux-libre-4.9.52-gnu/samples/seccomp/bpf-helper.h
--- linux-libre-4.9-gnu/samples/seccomp/bpf-helper.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/samples/seccomp/bpf-helper.h	2017-09-27 08:40:05.000000000 -0400
@@ -138,7 +138,7 @@ union arg64 {
 #define ARG_32(idx) \
 	BPF_STMT(BPF_LD+BPF_W+BPF_ABS, LO_ARG(idx))
 
-/* Loads hi into A and lo in X */
+/* Loads lo into M[0] and hi into M[1] and A */
 #define ARG_64(idx) \
 	BPF_STMT(BPF_LD+BPF_W+BPF_ABS, LO_ARG(idx)), \
 	BPF_STMT(BPF_ST, 0), /* lo -> M[0] */ \
@@ -153,88 +153,107 @@ union arg64 {
 	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (value), 1, 0), \
 	jt
 
-/* Checks the lo, then swaps to check the hi. A=lo,X=hi */
+#define JA32(value, jt) \
+	BPF_JUMP(BPF_JMP+BPF_JSET+BPF_K, (value), 0, 1), \
+	jt
+
+#define JGE32(value, jt) \
+	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (value), 0, 1), \
+	jt
+
+#define JGT32(value, jt) \
+	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (value), 0, 1), \
+	jt
+
+#define JLE32(value, jt) \
+	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (value), 1, 0), \
+	jt
+
+#define JLT32(value, jt) \
+	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (value), 1, 0), \
+	jt
+
+/*
+ * All the JXX64 checks assume lo is saved in M[0] and hi is saved in both
+ * A and M[1]. This invariant is kept by restoring A if necessary.
+ */
 #define JEQ64(lo, hi, jt) \
+	/* if (hi != arg.hi) goto NOMATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 5), \
 	BPF_STMT(BPF_LD+BPF_MEM, 0), /* swap in lo */ \
+	/* if (lo != arg.lo) goto NOMATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (lo), 0, 2), \
-	BPF_STMT(BPF_LD+BPF_MEM, 1), /* passed: swap hi back in */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 1), \
 	jt, \
-	BPF_STMT(BPF_LD+BPF_MEM, 1) /* failed: swap hi back in */
+	BPF_STMT(BPF_LD+BPF_MEM, 1)
 
 #define JNE64(lo, hi, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 5, 0), \
-	BPF_STMT(BPF_LD+BPF_MEM, 0), /* swap in lo */ \
+	/* if (hi != arg.hi) goto MATCH; */ \
+	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 3), \
+	BPF_STMT(BPF_LD+BPF_MEM, 0), \
+	/* if (lo != arg.lo) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (lo), 2, 0), \
-	BPF_STMT(BPF_LD+BPF_MEM, 1), /* passed: swap hi back in */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 1), \
 	jt, \
-	BPF_STMT(BPF_LD+BPF_MEM, 1) /* failed: swap hi back in */
-
-#define JA32(value, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JSET+BPF_K, (value), 0, 1), \
-	jt
+	BPF_STMT(BPF_LD+BPF_MEM, 1)
 
 #define JA64(lo, hi, jt) \
+	/* if (hi & arg.hi) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JSET+BPF_K, (hi), 3, 0), \
-	BPF_STMT(BPF_LD+BPF_MEM, 0), /* swap in lo */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 0), \
+	/* if (lo & arg.lo) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JSET+BPF_K, (lo), 0, 2), \
-	BPF_STMT(BPF_LD+BPF_MEM, 1), /* passed: swap hi back in */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 1), \
 	jt, \
-	BPF_STMT(BPF_LD+BPF_MEM, 1) /* failed: swap hi back in */
-
-#define JGE32(value, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (value), 0, 1), \
-	jt
-
-#define JLT32(value, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (value), 1, 0), \
-	jt
+	BPF_STMT(BPF_LD+BPF_MEM, 1)
 
-/* Shortcut checking if hi > arg.hi. */
 #define JGE64(lo, hi, jt) \
+	/* if (hi > arg.hi) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (hi), 4, 0), \
+	/* if (hi != arg.hi) goto NOMATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 5), \
-	BPF_STMT(BPF_LD+BPF_MEM, 0), /* swap in lo */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 0), \
+	/* if (lo >= arg.lo) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (lo), 0, 2), \
-	BPF_STMT(BPF_LD+BPF_MEM, 1), /* passed: swap hi back in */ \
-	jt, \
-	BPF_STMT(BPF_LD+BPF_MEM, 1) /* failed: swap hi back in */
-
-#define JLT64(lo, hi, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (hi), 0, 4), \
-	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 5), \
-	BPF_STMT(BPF_LD+BPF_MEM, 0), /* swap in lo */ \
-	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (lo), 2, 0), \
-	BPF_STMT(BPF_LD+BPF_MEM, 1), /* passed: swap hi back in */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 1), \
 	jt, \
-	BPF_STMT(BPF_LD+BPF_MEM, 1) /* failed: swap hi back in */
-
-#define JGT32(value, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (value), 0, 1), \
-	jt
-
-#define JLE32(value, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (value), 1, 0), \
-	jt
+	BPF_STMT(BPF_LD+BPF_MEM, 1)
 
-/* Check hi > args.hi first, then do the GE checking */
 #define JGT64(lo, hi, jt) \
+	/* if (hi > arg.hi) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (hi), 4, 0), \
+	/* if (hi != arg.hi) goto NOMATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 5), \
-	BPF_STMT(BPF_LD+BPF_MEM, 0), /* swap in lo */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 0), \
+	/* if (lo > arg.lo) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (lo), 0, 2), \
-	BPF_STMT(BPF_LD+BPF_MEM, 1), /* passed: swap hi back in */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 1), \
 	jt, \
-	BPF_STMT(BPF_LD+BPF_MEM, 1) /* failed: swap hi back in */
+	BPF_STMT(BPF_LD+BPF_MEM, 1)
 
 #define JLE64(lo, hi, jt) \
-	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (hi), 6, 0), \
-	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 3), \
-	BPF_STMT(BPF_LD+BPF_MEM, 0), /* swap in lo */ \
+	/* if (hi < arg.hi) goto MATCH; */ \
+	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (hi), 0, 4), \
+	/* if (hi != arg.hi) goto NOMATCH; */ \
+	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 5), \
+	BPF_STMT(BPF_LD+BPF_MEM, 0), \
+	/* if (lo <= arg.lo) goto MATCH; */ \
 	BPF_JUMP(BPF_JMP+BPF_JGT+BPF_K, (lo), 2, 0), \
-	BPF_STMT(BPF_LD+BPF_MEM, 1), /* passed: swap hi back in */ \
+	BPF_STMT(BPF_LD+BPF_MEM, 1), \
 	jt, \
-	BPF_STMT(BPF_LD+BPF_MEM, 1) /* failed: swap hi back in */
+	BPF_STMT(BPF_LD+BPF_MEM, 1)
+
+#define JLT64(lo, hi, jt) \
+	/* if (hi < arg.hi) goto MATCH; */ \
+	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (hi), 0, 4), \
+	/* if (hi != arg.hi) goto NOMATCH; */ \
+	BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, (hi), 0, 5), \
+	BPF_STMT(BPF_LD+BPF_MEM, 0), \
+	/* if (lo < arg.lo) goto MATCH; */ \
+	BPF_JUMP(BPF_JMP+BPF_JGE+BPF_K, (lo), 2, 0), \
+	BPF_STMT(BPF_LD+BPF_MEM, 1), \
+	jt, \
+	BPF_STMT(BPF_LD+BPF_MEM, 1)
 
 #define LOAD_SYSCALL_NR \
 	BPF_STMT(BPF_LD+BPF_W+BPF_ABS, \
diff -druNp --no-dereference linux-libre-4.9-gnu/scripts/checkpatch.pl linux-libre-4.9.52-gnu/scripts/checkpatch.pl
--- linux-libre-4.9-gnu/scripts/checkpatch.pl	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/scripts/checkpatch.pl	2017-09-27 08:40:05.000000000 -0400
@@ -3499,7 +3499,7 @@ sub process {
 				$fixedline =~ s/\s*=\s*$/ = {/;
 				fix_insert_line($fixlinenr, $fixedline);
 				$fixedline = $line;
-				$fixedline =~ s/^(.\s*){\s*/$1/;
+				$fixedline =~ s/^(.\s*)\{\s*/$1/;
 				fix_insert_line($fixlinenr, $fixedline);
 			}
 		}
@@ -3840,7 +3840,7 @@ sub process {
 				my $fixedline = rtrim($prevrawline) . " {";
 				fix_insert_line($fixlinenr, $fixedline);
 				$fixedline = $rawline;
-				$fixedline =~ s/^(.\s*){\s*/$1\t/;
+				$fixedline =~ s/^(.\s*)\{\s*/$1\t/;
 				if ($fixedline !~ /^\+\s*$/) {
 					fix_insert_line($fixlinenr, $fixedline);
 				}
@@ -4329,7 +4329,7 @@ sub process {
 			if (ERROR("SPACING",
 				  "space required before the open brace '{'\n" . $herecurr) &&
 			    $fix) {
-				$fixed[$fixlinenr] =~ s/^(\+.*(?:do|\))){/$1 {/;
+				$fixed[$fixlinenr] =~ s/^(\+.*(?:do|\)))\{/$1 {/;
 			}
 		}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/scripts/gcc-plugins/gcc-common.h linux-libre-4.9.52-gnu/scripts/gcc-plugins/gcc-common.h
--- linux-libre-4.9-gnu/scripts/gcc-plugins/gcc-common.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/scripts/gcc-plugins/gcc-common.h	2017-09-27 08:40:05.000000000 -0400
@@ -39,6 +39,9 @@
 #include "hash-map.h"
 #endif
 
+#if BUILDING_GCC_VERSION >= 7000
+#include "memmodel.h"
+#endif
 #include "emit-rtl.h"
 #include "debug.h"
 #include "target.h"
@@ -91,6 +94,9 @@
 #include "tree-ssa-alias.h"
 #include "tree-ssa.h"
 #include "stringpool.h"
+#if BUILDING_GCC_VERSION >= 7000
+#include "tree-vrp.h"
+#endif
 #include "tree-ssanames.h"
 #include "print-tree.h"
 #include "tree-eh.h"
@@ -287,6 +293,22 @@ static inline struct cgraph_node *cgraph
 	return NULL;
 }
 
+static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
+{
+	cgraph_node_ptr alias;
+
+	if (callback(node, data))
+		return true;
+
+	for (alias = node->same_body; alias; alias = alias->next) {
+		if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
+			if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
+				return true;
+	}
+
+	return false;
+}
+
 #define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
 	for ((node) = cgraph_first_function_with_gimple_body(); (node); \
 		(node) = cgraph_next_function_with_gimple_body(node))
@@ -399,6 +421,7 @@ typedef union gimple_statement_d gassign
 typedef union gimple_statement_d gcall;
 typedef union gimple_statement_d gcond;
 typedef union gimple_statement_d gdebug;
+typedef union gimple_statement_d ggoto;
 typedef union gimple_statement_d gphi;
 typedef union gimple_statement_d greturn;
 
@@ -452,6 +475,16 @@ static inline const gdebug *as_a_const_g
 	return stmt;
 }
 
+static inline ggoto *as_a_ggoto(gimple stmt)
+{
+	return stmt;
+}
+
+static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
+{
+	return stmt;
+}
+
 static inline gphi *as_a_gphi(gimple stmt)
 {
 	return stmt;
@@ -496,6 +529,14 @@ static inline const greturn *as_a_const_
 
 typedef struct rtx_def rtx_insn;
 
+static inline const char *get_decl_section_name(const_tree decl)
+{
+	if (DECL_SECTION_NAME(decl) == NULL_TREE)
+		return NULL;
+
+	return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
+}
+
 static inline void set_decl_section_name(tree node, const char *value)
 {
 	if (value)
@@ -511,6 +552,7 @@ typedef struct gimple_statement_base gas
 typedef struct gimple_statement_call gcall;
 typedef struct gimple_statement_base gcond;
 typedef struct gimple_statement_base gdebug;
+typedef struct gimple_statement_base ggoto;
 typedef struct gimple_statement_phi gphi;
 typedef struct gimple_statement_base greturn;
 
@@ -564,6 +606,16 @@ static inline const gdebug *as_a_const_g
 	return stmt;
 }
 
+static inline ggoto *as_a_ggoto(gimple stmt)
+{
+	return stmt;
+}
+
+static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
+{
+	return stmt;
+}
+
 static inline gphi *as_a_gphi(gimple stmt)
 {
 	return as_a<gphi>(stmt);
@@ -611,6 +663,11 @@ inline bool is_a_helper<const gassign *>
 
 #define INSN_DELETED_P(insn) (insn)->deleted()
 
+static inline const char *get_decl_section_name(const_tree decl)
+{
+	return DECL_SECTION_NAME(decl);
+}
+
 /* symtab/cgraph related */
 #define debug_cgraph_node(node) (node)->debug()
 #define cgraph_get_node(decl) cgraph_node::get(decl)
@@ -619,6 +676,7 @@ inline bool is_a_helper<const gassign *>
 #define cgraph_n_nodes symtab->cgraph_count
 #define cgraph_max_uid symtab->cgraph_max_uid
 #define varpool_get_node(decl) varpool_node::get(decl)
+#define dump_varpool_node(file, node) (node)->dump(file)
 
 #define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
 	(caller)->create_edge((callee), (call_stmt), (count), (freq))
@@ -674,6 +732,11 @@ static inline cgraph_node_ptr cgraph_ali
 	return node->get_alias_target();
 }
 
+static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
+{
+	return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
+}
+
 static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
 {
 	return symtab->add_cgraph_insertion_hook(hook, data);
@@ -731,6 +794,13 @@ static inline gimple gimple_build_assign
 
 template <>
 template <>
+inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
+{
+	return gs->code == GIMPLE_GOTO;
+}
+
+template <>
+template <>
 inline bool is_a_helper<const greturn *>::test(const_gimple gs)
 {
 	return gs->code == GIMPLE_RETURN;
@@ -766,6 +836,16 @@ static inline const gcall *as_a_const_gc
 	return as_a<const gcall *>(stmt);
 }
 
+static inline ggoto *as_a_ggoto(gimple stmt)
+{
+	return as_a<ggoto *>(stmt);
+}
+
+static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
+{
+	return as_a<const ggoto *>(stmt);
+}
+
 static inline gphi *as_a_gphi(gimple stmt)
 {
 	return as_a<gphi *>(stmt);
@@ -828,4 +908,9 @@ static inline void debug_gimple_stmt(con
 #define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
 #endif
 
+#if BUILDING_GCC_VERSION >= 7000
+#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
+	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
+#endif
+
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/scripts/gcc-plugins/latent_entropy_plugin.c linux-libre-4.9.52-gnu/scripts/gcc-plugins/latent_entropy_plugin.c
--- linux-libre-4.9-gnu/scripts/gcc-plugins/latent_entropy_plugin.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/scripts/gcc-plugins/latent_entropy_plugin.c	2017-09-27 08:40:05.000000000 -0400
@@ -328,9 +328,9 @@ static enum tree_code get_op(tree *rhs)
 			op = LROTATE_EXPR;
 			/*
 			 * This code limits the value of random_const to
-			 * the size of a wide int for the rotation
+			 * the size of a long for the rotation
 			 */
-			random_const &= HOST_BITS_PER_WIDE_INT - 1;
+			random_const %= TYPE_PRECISION(long_unsigned_type_node);
 			break;
 		}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/scripts/kconfig/nconf.gui.c linux-libre-4.9.52-gnu/scripts/kconfig/nconf.gui.c
--- linux-libre-4.9-gnu/scripts/kconfig/nconf.gui.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/scripts/kconfig/nconf.gui.c	2017-09-27 08:40:05.000000000 -0400
@@ -364,12 +364,14 @@ int dialog_inputbox(WINDOW *main_window,
 	WINDOW *prompt_win;
 	WINDOW *form_win;
 	PANEL *panel;
-	int i, x, y;
+	int i, x, y, lines, columns, win_lines, win_cols;
 	int res = -1;
 	int cursor_position = strlen(init);
 	int cursor_form_win;
 	char *result = *resultp;
 
+	getmaxyx(stdscr, lines, columns);
+
 	if (strlen(init)+1 > *result_len) {
 		*result_len = strlen(init)+1;
 		*resultp = result = realloc(result, *result_len);
@@ -386,14 +388,19 @@ int dialog_inputbox(WINDOW *main_window,
 	if (title)
 		prompt_width = max(prompt_width, strlen(title));
 
+	win_lines = min(prompt_lines+6, lines-2);
+	win_cols = min(prompt_width+7, columns-2);
+	prompt_lines = max(win_lines-6, 0);
+	prompt_width = max(win_cols-7, 0);
+
 	/* place dialog in middle of screen */
-	y = (getmaxy(stdscr)-(prompt_lines+4))/2;
-	x = (getmaxx(stdscr)-(prompt_width+4))/2;
+	y = (lines-win_lines)/2;
+	x = (columns-win_cols)/2;
 
 	strncpy(result, init, *result_len);
 
 	/* create the windows */
-	win = newwin(prompt_lines+6, prompt_width+7, y, x);
+	win = newwin(win_lines, win_cols, y, x);
 	prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
 	form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
 	keypad(form_win, TRUE);
diff -druNp --no-dereference linux-libre-4.9-gnu/scripts/package/builddeb linux-libre-4.9.52-gnu/scripts/package/builddeb
--- linux-libre-4.9-gnu/scripts/package/builddeb	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/scripts/package/builddeb	2017-09-27 08:40:05.000000000 -0400
@@ -51,7 +51,7 @@ set_debarch() {
 		debarch=hppa ;;
 	mips*)
 		debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
-	arm64)
+	aarch64|arm64)
 		debarch=arm64 ;;
 	arm*)
 		if grep -q CONFIG_AEABI=y $KCONFIG_CONFIG; then
diff -druNp --no-dereference linux-libre-4.9-gnu/security/integrity/ima/ima_api.c linux-libre-4.9.52-gnu/security/integrity/ima/ima_api.c
--- linux-libre-4.9-gnu/security/integrity/ima/ima_api.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/integrity/ima/ima_api.c	2017-09-27 08:40:05.000000000 -0400
@@ -318,7 +318,17 @@ void ima_audit_measurement(struct integr
 	iint->flags |= IMA_AUDITED;
 }
 
-const char *ima_d_path(const struct path *path, char **pathbuf)
+/*
+ * ima_d_path - return a pointer to the full pathname
+ *
+ * Attempt to return a pointer to the full pathname for use in the
+ * IMA measurement list, IMA audit records, and auditing logs.
+ *
+ * On failure, return a pointer to a copy of the filename, not dname.
+ * Returning a pointer to dname, could result in using the pointer
+ * after the memory has been freed.
+ */
+const char *ima_d_path(const struct path *path, char **pathbuf, char *namebuf)
 {
 	char *pathname = NULL;
 
@@ -331,5 +341,11 @@ const char *ima_d_path(const struct path
 			pathname = NULL;
 		}
 	}
-	return pathname ?: (const char *)path->dentry->d_name.name;
+
+	if (!pathname) {
+		strlcpy(namebuf, path->dentry->d_name.name, NAME_MAX);
+		pathname = namebuf;
+	}
+
+	return pathname;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/security/integrity/ima/ima_appraise.c linux-libre-4.9.52-gnu/security/integrity/ima/ima_appraise.c
--- linux-libre-4.9-gnu/security/integrity/ima/ima_appraise.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/integrity/ima/ima_appraise.c	2017-09-27 08:40:05.000000000 -0400
@@ -204,10 +204,11 @@ int ima_appraise_measurement(enum ima_ho
 
 		cause = "missing-hash";
 		status = INTEGRITY_NOLABEL;
-		if (opened & FILE_CREATED) {
+		if (opened & FILE_CREATED)
 			iint->flags |= IMA_NEW_FILE;
+		if ((iint->flags & IMA_NEW_FILE) &&
+		    !(iint->flags & IMA_DIGSIG_REQUIRED))
 			status = INTEGRITY_PASS;
-		}
 		goto out;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/security/integrity/ima/ima_fs.c linux-libre-4.9.52-gnu/security/integrity/ima/ima_fs.c
--- linux-libre-4.9-gnu/security/integrity/ima/ima_fs.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/integrity/ima/ima_fs.c	2017-09-27 08:40:05.000000000 -0400
@@ -401,7 +401,7 @@ static int ima_release_policy(struct ino
 	const char *cause = valid_policy ? "completed" : "failed";
 
 	if ((file->f_flags & O_ACCMODE) == O_RDONLY)
-		return 0;
+		return seq_release(inode, file);
 
 	if (valid_policy && ima_check_policy() < 0) {
 		cause = "failed";
diff -druNp --no-dereference linux-libre-4.9-gnu/security/integrity/ima/ima.h linux-libre-4.9.52-gnu/security/integrity/ima/ima.h
--- linux-libre-4.9-gnu/security/integrity/ima/ima.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/integrity/ima/ima.h	2017-09-27 08:40:05.000000000 -0400
@@ -173,7 +173,7 @@ int ima_store_template(struct ima_templa
 		       struct inode *inode,
 		       const unsigned char *filename, int pcr);
 void ima_free_template_entry(struct ima_template_entry *entry);
-const char *ima_d_path(const struct path *path, char **pathbuf);
+const char *ima_d_path(const struct path *path, char **pathbuf, char *filename);
 
 /* IMA policy related functions */
 int ima_match_policy(struct inode *inode, enum ima_hooks func, int mask,
diff -druNp --no-dereference linux-libre-4.9-gnu/security/integrity/ima/ima_main.c linux-libre-4.9.52-gnu/security/integrity/ima/ima_main.c
--- linux-libre-4.9-gnu/security/integrity/ima/ima_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/integrity/ima/ima_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -83,6 +83,7 @@ static void ima_rdwr_violation_check(str
 				     const char **pathname)
 {
 	struct inode *inode = file_inode(file);
+	char filename[NAME_MAX];
 	fmode_t mode = file->f_mode;
 	bool send_tomtou = false, send_writers = false;
 
@@ -102,7 +103,7 @@ static void ima_rdwr_violation_check(str
 	if (!send_tomtou && !send_writers)
 		return;
 
-	*pathname = ima_d_path(&file->f_path, pathbuf);
+	*pathname = ima_d_path(&file->f_path, pathbuf, filename);
 
 	if (send_tomtou)
 		ima_add_violation(file, *pathname, iint,
@@ -161,6 +162,7 @@ static int process_measurement(struct fi
 	struct integrity_iint_cache *iint = NULL;
 	struct ima_template_desc *template_desc;
 	char *pathbuf = NULL;
+	char filename[NAME_MAX];
 	const char *pathname = NULL;
 	int rc = -ENOMEM, action, must_appraise;
 	int pcr = CONFIG_IMA_MEASURE_PCR_IDX;
@@ -239,8 +241,8 @@ static int process_measurement(struct fi
 		goto out_digsig;
 	}
 
-	if (!pathname)	/* ima_rdwr_violation possibly pre-fetched */
-		pathname = ima_d_path(&file->f_path, &pathbuf);
+	if (!pathbuf)	/* ima_rdwr_violation possibly pre-fetched */
+		pathname = ima_d_path(&file->f_path, &pathbuf, filename);
 
 	if (action & IMA_MEASURE)
 		ima_store_measurement(iint, file, pathname,
diff -druNp --no-dereference linux-libre-4.9-gnu/security/keys/encrypted-keys/encrypted.c linux-libre-4.9.52-gnu/security/keys/encrypted-keys/encrypted.c
--- linux-libre-4.9-gnu/security/keys/encrypted-keys/encrypted.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/keys/encrypted-keys/encrypted.c	2017-09-27 08:40:05.000000000 -0400
@@ -437,7 +437,7 @@ static struct skcipher_request *init_skc
 static struct key *request_master_key(struct encrypted_key_payload *epayload,
 				      const u8 **master_key, size_t *master_keylen)
 {
-	struct key *mkey = NULL;
+	struct key *mkey = ERR_PTR(-EINVAL);
 
 	if (!strncmp(epayload->master_desc, KEY_TRUSTED_PREFIX,
 		     KEY_TRUSTED_PREFIX_LEN)) {
@@ -480,12 +480,9 @@ static int derived_key_encrypt(struct en
 	struct skcipher_request *req;
 	unsigned int encrypted_datalen;
 	u8 iv[AES_BLOCK_SIZE];
-	unsigned int padlen;
-	char pad[16];
 	int ret;
 
 	encrypted_datalen = roundup(epayload->decrypted_datalen, blksize);
-	padlen = encrypted_datalen - epayload->decrypted_datalen;
 
 	req = init_skcipher_req(derived_key, derived_keylen);
 	ret = PTR_ERR(req);
@@ -493,11 +490,10 @@ static int derived_key_encrypt(struct en
 		goto out;
 	dump_decrypted_data(epayload);
 
-	memset(pad, 0, sizeof pad);
 	sg_init_table(sg_in, 2);
 	sg_set_buf(&sg_in[0], epayload->decrypted_data,
 		   epayload->decrypted_datalen);
-	sg_set_buf(&sg_in[1], pad, padlen);
+	sg_set_page(&sg_in[1], ZERO_PAGE(0), AES_BLOCK_SIZE, 0);
 
 	sg_init_table(sg_out, 1);
 	sg_set_buf(sg_out, epayload->encrypted_data, encrypted_datalen);
@@ -584,9 +580,14 @@ static int derived_key_decrypt(struct en
 	struct skcipher_request *req;
 	unsigned int encrypted_datalen;
 	u8 iv[AES_BLOCK_SIZE];
-	char pad[16];
+	u8 *pad;
 	int ret;
 
+	/* Throwaway buffer to hold the unused zero padding at the end */
+	pad = kmalloc(AES_BLOCK_SIZE, GFP_KERNEL);
+	if (!pad)
+		return -ENOMEM;
+
 	encrypted_datalen = roundup(epayload->decrypted_datalen, blksize);
 	req = init_skcipher_req(derived_key, derived_keylen);
 	ret = PTR_ERR(req);
@@ -594,13 +595,12 @@ static int derived_key_decrypt(struct en
 		goto out;
 	dump_encrypted_data(epayload, encrypted_datalen);
 
-	memset(pad, 0, sizeof pad);
 	sg_init_table(sg_in, 1);
 	sg_init_table(sg_out, 2);
 	sg_set_buf(sg_in, epayload->encrypted_data, encrypted_datalen);
 	sg_set_buf(&sg_out[0], epayload->decrypted_data,
 		   epayload->decrypted_datalen);
-	sg_set_buf(&sg_out[1], pad, sizeof pad);
+	sg_set_buf(&sg_out[1], pad, AES_BLOCK_SIZE);
 
 	memcpy(iv, epayload->iv, sizeof(iv));
 	skcipher_request_set_crypt(req, sg_in, sg_out, encrypted_datalen, iv);
@@ -612,6 +612,7 @@ static int derived_key_decrypt(struct en
 		goto out;
 	dump_decrypted_data(epayload);
 out:
+	kfree(pad);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/security/keys/gc.c linux-libre-4.9.52-gnu/security/keys/gc.c
--- linux-libre-4.9-gnu/security/keys/gc.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/keys/gc.c	2017-09-27 08:40:05.000000000 -0400
@@ -46,7 +46,7 @@ static unsigned long key_gc_flags;
  * immediately unlinked.
  */
 struct key_type key_type_dead = {
-	.name = "dead",
+	.name = ".dead",
 };
 
 /*
diff -druNp --no-dereference linux-libre-4.9-gnu/security/keys/key.c linux-libre-4.9.52-gnu/security/keys/key.c
--- linux-libre-4.9-gnu/security/keys/key.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/keys/key.c	2017-09-27 08:40:05.000000000 -0400
@@ -962,12 +962,11 @@ int key_update(key_ref_t key_ref, const
 	/* the key must be writable */
 	ret = key_permission(key_ref, KEY_NEED_WRITE);
 	if (ret < 0)
-		goto error;
+		return ret;
 
 	/* attempt to update it if supported */
-	ret = -EOPNOTSUPP;
 	if (!key->type->update)
-		goto error;
+		return -EOPNOTSUPP;
 
 	memset(&prep, 0, sizeof(prep));
 	prep.data = payload;
diff -druNp --no-dereference linux-libre-4.9-gnu/security/keys/keyctl.c linux-libre-4.9.52-gnu/security/keys/keyctl.c
--- linux-libre-4.9-gnu/security/keys/keyctl.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/keys/keyctl.c	2017-09-27 08:40:05.000000000 -0400
@@ -97,7 +97,7 @@ SYSCALL_DEFINE5(add_key, const char __us
 	/* pull the payload in if one was supplied */
 	payload = NULL;
 
-	if (_payload) {
+	if (plen) {
 		ret = -ENOMEM;
 		payload = kmalloc(plen, GFP_KERNEL | __GFP_NOWARN);
 		if (!payload) {
@@ -271,7 +271,8 @@ error:
  * Create and join an anonymous session keyring or join a named session
  * keyring, creating it if necessary.  A named session keyring must have Search
  * permission for it to be joined.  Session keyrings without this permit will
- * be skipped over.
+ * be skipped over.  It is not permitted for userspace to create or join
+ * keyrings whose name begin with a dot.
  *
  * If successful, the ID of the joined session keyring will be returned.
  */
@@ -288,12 +289,16 @@ long keyctl_join_session_keyring(const c
 			ret = PTR_ERR(name);
 			goto error;
 		}
+
+		ret = -EPERM;
+		if (name[0] == '.')
+			goto error_name;
 	}
 
 	/* join the session */
 	ret = join_session_keyring(name);
+error_name:
 	kfree(name);
-
 error:
 	return ret;
 }
@@ -322,7 +327,7 @@ long keyctl_update_key(key_serial_t id,
 
 	/* pull the payload in if one was supplied */
 	payload = NULL;
-	if (_payload) {
+	if (plen) {
 		ret = -ENOMEM;
 		payload = kmalloc(plen, GFP_KERNEL);
 		if (!payload)
@@ -1251,8 +1256,8 @@ error:
  * Read or set the default keyring in which request_key() will cache keys and
  * return the old setting.
  *
- * If a process keyring is specified then this will be created if it doesn't
- * yet exist.  The old setting will be returned if successful.
+ * If a thread or process keyring is specified then it will be created if it
+ * doesn't yet exist.  The old setting will be returned if successful.
  */
 long keyctl_set_reqkey_keyring(int reqkey_defl)
 {
@@ -1277,11 +1282,8 @@ long keyctl_set_reqkey_keyring(int reqke
 
 	case KEY_REQKEY_DEFL_PROCESS_KEYRING:
 		ret = install_process_keyring_to_cred(new);
-		if (ret < 0) {
-			if (ret != -EEXIST)
-				goto error;
-			ret = 0;
-		}
+		if (ret < 0)
+			goto error;
 		goto set;
 
 	case KEY_REQKEY_DEFL_DEFAULT:
diff -druNp --no-dereference linux-libre-4.9-gnu/security/keys/process_keys.c linux-libre-4.9.52-gnu/security/keys/process_keys.c
--- linux-libre-4.9-gnu/security/keys/process_keys.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/keys/process_keys.c	2017-09-27 08:40:05.000000000 -0400
@@ -127,13 +127,18 @@ error:
 }
 
 /*
- * Install a fresh thread keyring directly to new credentials.  This keyring is
- * allowed to overrun the quota.
+ * Install a thread keyring to the given credentials struct if it didn't have
+ * one already.  This is allowed to overrun the quota.
+ *
+ * Return: 0 if a thread keyring is now present; -errno on failure.
  */
 int install_thread_keyring_to_cred(struct cred *new)
 {
 	struct key *keyring;
 
+	if (new->thread_keyring)
+		return 0;
+
 	keyring = keyring_alloc("_tid", new->uid, new->gid, new,
 				KEY_POS_ALL | KEY_USR_VIEW,
 				KEY_ALLOC_QUOTA_OVERRUN,
@@ -146,7 +151,9 @@ int install_thread_keyring_to_cred(struc
 }
 
 /*
- * Install a fresh thread keyring, discarding the old one.
+ * Install a thread keyring to the current task if it didn't have one already.
+ *
+ * Return: 0 if a thread keyring is now present; -errno on failure.
  */
 static int install_thread_keyring(void)
 {
@@ -157,8 +164,6 @@ static int install_thread_keyring(void)
 	if (!new)
 		return -ENOMEM;
 
-	BUG_ON(new->thread_keyring);
-
 	ret = install_thread_keyring_to_cred(new);
 	if (ret < 0) {
 		abort_creds(new);
@@ -169,17 +174,17 @@ static int install_thread_keyring(void)
 }
 
 /*
- * Install a process keyring directly to a credentials struct.
+ * Install a process keyring to the given credentials struct if it didn't have
+ * one already.  This is allowed to overrun the quota.
  *
- * Returns -EEXIST if there was already a process keyring, 0 if one installed,
- * and other value on any other error
+ * Return: 0 if a process keyring is now present; -errno on failure.
  */
 int install_process_keyring_to_cred(struct cred *new)
 {
 	struct key *keyring;
 
 	if (new->process_keyring)
-		return -EEXIST;
+		return 0;
 
 	keyring = keyring_alloc("_pid", new->uid, new->gid, new,
 				KEY_POS_ALL | KEY_USR_VIEW,
@@ -193,11 +198,9 @@ int install_process_keyring_to_cred(stru
 }
 
 /*
- * Make sure a process keyring is installed for the current process.  The
- * existing process keyring is not replaced.
+ * Install a process keyring to the current task if it didn't have one already.
  *
- * Returns 0 if there is a process keyring by the end of this function, some
- * error otherwise.
+ * Return: 0 if a process keyring is now present; -errno on failure.
  */
 static int install_process_keyring(void)
 {
@@ -211,14 +214,18 @@ static int install_process_keyring(void)
 	ret = install_process_keyring_to_cred(new);
 	if (ret < 0) {
 		abort_creds(new);
-		return ret != -EEXIST ? ret : 0;
+		return ret;
 	}
 
 	return commit_creds(new);
 }
 
 /*
- * Install a session keyring directly to a credentials struct.
+ * Install the given keyring as the session keyring of the given credentials
+ * struct, replacing the existing one if any.  If the given keyring is NULL,
+ * then install a new anonymous session keyring.
+ *
+ * Return: 0 on success; -errno on failure.
  */
 int install_session_keyring_to_cred(struct cred *cred, struct key *keyring)
 {
@@ -253,8 +260,11 @@ int install_session_keyring_to_cred(stru
 }
 
 /*
- * Install a session keyring, discarding the old one.  If a keyring is not
- * supplied, an empty one is invented.
+ * Install the given keyring as the session keyring of the current task,
+ * replacing the existing one if any.  If the given keyring is NULL, then
+ * install a new anonymous session keyring.
+ *
+ * Return: 0 on success; -errno on failure.
  */
 static int install_session_keyring(struct key *keyring)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/security/selinux/hooks.c linux-libre-4.9.52-gnu/security/selinux/hooks.c
--- linux-libre-4.9-gnu/security/selinux/hooks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/security/selinux/hooks.c	2017-09-27 08:40:05.000000000 -0400
@@ -5858,7 +5858,7 @@ static int selinux_setprocattr(struct ta
 		return error;
 
 	/* Obtain a SID for the context, if one was specified. */
-	if (size && str[1] && str[1] != '\n') {
+	if (size && str[0] && str[0] != '\n') {
 		if (str[size-1] == '\n') {
 			str[size-1] = 0;
 			size--;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/control.c linux-libre-4.9.52-gnu/sound/core/control.c
--- linux-libre-4.9-gnu/sound/core/control.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/control.c	2017-09-27 08:40:05.000000000 -0400
@@ -1156,7 +1156,7 @@ static int snd_ctl_elem_user_tlv(struct
 		mutex_lock(&ue->card->user_ctl_lock);
 		change = ue->tlv_data_size != size;
 		if (!change)
-			change = memcmp(ue->tlv_data, new_data, size);
+			change = memcmp(ue->tlv_data, new_data, size) != 0;
 		kfree(ue->tlv_data);
 		ue->tlv_data = new_data;
 		ue->tlv_data_size = size;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/pcm_lib.c linux-libre-4.9.52-gnu/sound/core/pcm_lib.c
--- linux-libre-4.9-gnu/sound/core/pcm_lib.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/pcm_lib.c	2017-09-27 08:40:05.000000000 -0400
@@ -2491,7 +2491,7 @@ static int pcm_chmap_ctl_get(struct snd_
 	struct snd_pcm_substream *substream;
 	const struct snd_pcm_chmap_elem *map;
 
-	if (snd_BUG_ON(!info->chmap))
+	if (!info->chmap)
 		return -EINVAL;
 	substream = snd_pcm_chmap_substream(info, idx);
 	if (!substream)
@@ -2523,7 +2523,7 @@ static int pcm_chmap_ctl_tlv(struct snd_
 	unsigned int __user *dst;
 	int c, count = 0;
 
-	if (snd_BUG_ON(!info->chmap))
+	if (!info->chmap)
 		return -EINVAL;
 	if (size < 8)
 		return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/seq/seq_clientmgr.c linux-libre-4.9.52-gnu/sound/core/seq/seq_clientmgr.c
--- linux-libre-4.9-gnu/sound/core/seq/seq_clientmgr.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/seq/seq_clientmgr.c	2017-09-27 08:40:05.000000000 -0400
@@ -1502,16 +1502,11 @@ static int snd_seq_ioctl_unsubscribe_por
 static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, void *arg)
 {
 	struct snd_seq_queue_info *info = arg;
-	int result;
 	struct snd_seq_queue *q;
 
-	result = snd_seq_queue_alloc(client->number, info->locked, info->flags);
-	if (result < 0)
-		return result;
-
-	q = queueptr(result);
-	if (q == NULL)
-		return -EINVAL;
+	q = snd_seq_queue_alloc(client->number, info->locked, info->flags);
+	if (IS_ERR(q))
+		return PTR_ERR(q);
 
 	info->queue = q->queue;
 	info->locked = q->locked;
@@ -1521,7 +1516,7 @@ static int snd_seq_ioctl_create_queue(st
 	if (!info->name[0])
 		snprintf(info->name, sizeof(info->name), "Queue-%d", q->queue);
 	strlcpy(q->name, info->name, sizeof(q->name));
-	queuefree(q);
+	snd_use_lock_free(&q->use_lock);
 
 	return 0;
 }
@@ -1832,6 +1827,7 @@ static int snd_seq_ioctl_set_client_pool
 	     info->output_pool != client->pool->size)) {
 		if (snd_seq_write_pool_allocated(client)) {
 			/* remove all existing cells */
+			snd_seq_pool_mark_closing(client->pool);
 			snd_seq_queue_client_leave_cells(client->number);
 			snd_seq_pool_done(client->pool);
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/seq/seq_fifo.c linux-libre-4.9.52-gnu/sound/core/seq/seq_fifo.c
--- linux-libre-4.9-gnu/sound/core/seq/seq_fifo.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/seq/seq_fifo.c	2017-09-27 08:40:05.000000000 -0400
@@ -70,6 +70,9 @@ void snd_seq_fifo_delete(struct snd_seq_
 		return;
 	*fifo = NULL;
 
+	if (f->pool)
+		snd_seq_pool_mark_closing(f->pool);
+
 	snd_seq_fifo_clear(f);
 
 	/* wake up clients if any */
@@ -135,6 +138,7 @@ int snd_seq_fifo_event_in(struct snd_seq
 	f->tail = cell;
 	if (f->head == NULL)
 		f->head = cell;
+	cell->next = NULL;
 	f->cells++;
 	spin_unlock_irqrestore(&f->lock, flags);
 
@@ -214,6 +218,8 @@ void snd_seq_fifo_cell_putback(struct sn
 		spin_lock_irqsave(&f->lock, flags);
 		cell->next = f->head;
 		f->head = cell;
+		if (!f->tail)
+			f->tail = cell;
 		f->cells++;
 		spin_unlock_irqrestore(&f->lock, flags);
 	}
@@ -259,6 +265,10 @@ int snd_seq_fifo_resize(struct snd_seq_f
 	/* NOTE: overflow flag is not cleared */
 	spin_unlock_irqrestore(&f->lock, flags);
 
+	/* close the old pool and wait until all users are gone */
+	snd_seq_pool_mark_closing(oldpool);
+	snd_use_lock_sync(&f->use_lock);
+
 	/* release cells in old pool */
 	for (cell = oldhead; cell; cell = next) {
 		next = cell->next;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/seq/seq_lock.c linux-libre-4.9.52-gnu/sound/core/seq/seq_lock.c
--- linux-libre-4.9-gnu/sound/core/seq/seq_lock.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/seq/seq_lock.c	2017-09-27 08:40:05.000000000 -0400
@@ -28,19 +28,16 @@
 /* wait until all locks are released */
 void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
 {
-	int max_count = 5 * HZ;
+	int warn_count = 5 * HZ;
 
 	if (atomic_read(lockp) < 0) {
 		pr_warn("ALSA: seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line);
 		return;
 	}
 	while (atomic_read(lockp) > 0) {
-		if (max_count == 0) {
-			pr_warn("ALSA: seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line);
-			break;
-		}
+		if (warn_count-- == 0)
+			pr_warn("ALSA: seq_lock: waiting [%d left] in %s:%d\n", atomic_read(lockp), file, line);
 		schedule_timeout_uninterruptible(1);
-		max_count--;
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/seq/seq_memory.c linux-libre-4.9.52-gnu/sound/core/seq/seq_memory.c
--- linux-libre-4.9-gnu/sound/core/seq/seq_memory.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/seq/seq_memory.c	2017-09-27 08:40:05.000000000 -0400
@@ -414,32 +414,33 @@ int snd_seq_pool_init(struct snd_seq_poo
 	return 0;
 }
 
+/* refuse the further insertion to the pool */
+void snd_seq_pool_mark_closing(struct snd_seq_pool *pool)
+{
+	unsigned long flags;
+
+	if (snd_BUG_ON(!pool))
+		return;
+	spin_lock_irqsave(&pool->lock, flags);
+	pool->closing = 1;
+	spin_unlock_irqrestore(&pool->lock, flags);
+}
+
 /* remove events */
 int snd_seq_pool_done(struct snd_seq_pool *pool)
 {
 	unsigned long flags;
 	struct snd_seq_event_cell *ptr;
-	int max_count = 5 * HZ;
 
 	if (snd_BUG_ON(!pool))
 		return -EINVAL;
 
 	/* wait for closing all threads */
-	spin_lock_irqsave(&pool->lock, flags);
-	pool->closing = 1;
-	spin_unlock_irqrestore(&pool->lock, flags);
-
 	if (waitqueue_active(&pool->output_sleep))
 		wake_up(&pool->output_sleep);
 
-	while (atomic_read(&pool->counter) > 0) {
-		if (max_count == 0) {
-			pr_warn("ALSA: snd_seq_pool_done timeout: %d cells remain\n", atomic_read(&pool->counter));
-			break;
-		}
+	while (atomic_read(&pool->counter) > 0)
 		schedule_timeout_uninterruptible(1);
-		max_count--;
-	}
 	
 	/* release all resources */
 	spin_lock_irqsave(&pool->lock, flags);
@@ -491,6 +492,7 @@ int snd_seq_pool_delete(struct snd_seq_p
 	*ppool = NULL;
 	if (pool == NULL)
 		return 0;
+	snd_seq_pool_mark_closing(pool);
 	snd_seq_pool_done(pool);
 	kfree(pool);
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/seq/seq_memory.h linux-libre-4.9.52-gnu/sound/core/seq/seq_memory.h
--- linux-libre-4.9-gnu/sound/core/seq/seq_memory.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/seq/seq_memory.h	2017-09-27 08:40:05.000000000 -0400
@@ -84,6 +84,7 @@ static inline int snd_seq_total_cells(st
 int snd_seq_pool_init(struct snd_seq_pool *pool);
 
 /* done pool - free events */
+void snd_seq_pool_mark_closing(struct snd_seq_pool *pool);
 int snd_seq_pool_done(struct snd_seq_pool *pool);
 
 /* create pool */
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/seq/seq_queue.c linux-libre-4.9.52-gnu/sound/core/seq/seq_queue.c
--- linux-libre-4.9-gnu/sound/core/seq/seq_queue.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/seq/seq_queue.c	2017-09-27 08:40:05.000000000 -0400
@@ -181,23 +181,29 @@ void __exit snd_seq_queues_delete(void)
 	}
 }
 
+static void queue_use(struct snd_seq_queue *queue, int client, int use);
+
 /* allocate a new queue -
- * return queue index value or negative value for error
+ * return pointer to new queue or ERR_PTR(-errno) for error
+ * The new queue's use_lock is set to 1. It is the caller's responsibility to
+ * call snd_use_lock_free(&q->use_lock).
  */
-int snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
+struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
 {
 	struct snd_seq_queue *q;
 
 	q = queue_new(client, locked);
 	if (q == NULL)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 	q->info_flags = info_flags;
+	queue_use(q, client, 1);
+	snd_use_lock_use(&q->use_lock);
 	if (queue_list_add(q) < 0) {
+		snd_use_lock_free(&q->use_lock);
 		queue_delete(q);
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 	}
-	snd_seq_queue_use(q->queue, client, 1); /* use this queue */
-	return q->queue;
+	return q;
 }
 
 /* delete a queue - queue must be owned by the client */
@@ -502,19 +508,9 @@ int snd_seq_queue_timer_set_tempo(int qu
 	return result;
 }
 
-
-/* use or unuse this queue -
- * if it is the first client, starts the timer.
- * if it is not longer used by any clients, stop the timer.
- */
-int snd_seq_queue_use(int queueid, int client, int use)
+/* use or unuse this queue */
+static void queue_use(struct snd_seq_queue *queue, int client, int use)
 {
-	struct snd_seq_queue *queue;
-
-	queue = queueptr(queueid);
-	if (queue == NULL)
-		return -EINVAL;
-	mutex_lock(&queue->timer_mutex);
 	if (use) {
 		if (!test_and_set_bit(client, queue->clients_bitmap))
 			queue->clients++;
@@ -529,6 +525,21 @@ int snd_seq_queue_use(int queueid, int c
 	} else {
 		snd_seq_timer_close(queue);
 	}
+}
+
+/* use or unuse this queue -
+ * if it is the first client, starts the timer.
+ * if it is not longer used by any clients, stop the timer.
+ */
+int snd_seq_queue_use(int queueid, int client, int use)
+{
+	struct snd_seq_queue *queue;
+
+	queue = queueptr(queueid);
+	if (queue == NULL)
+		return -EINVAL;
+	mutex_lock(&queue->timer_mutex);
+	queue_use(queue, client, use);
 	mutex_unlock(&queue->timer_mutex);
 	queuefree(queue);
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/seq/seq_queue.h linux-libre-4.9.52-gnu/sound/core/seq/seq_queue.h
--- linux-libre-4.9-gnu/sound/core/seq/seq_queue.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/seq/seq_queue.h	2017-09-27 08:40:05.000000000 -0400
@@ -71,7 +71,7 @@ void snd_seq_queues_delete(void);
 
 
 /* create new queue (constructor) */
-int snd_seq_queue_alloc(int client, int locked, unsigned int flags);
+struct snd_seq_queue *snd_seq_queue_alloc(int client, int locked, unsigned int flags);
 
 /* delete queue (destructor) */
 int snd_seq_queue_delete(int client, int queueid);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/core/timer.c linux-libre-4.9.52-gnu/sound/core/timer.c
--- linux-libre-4.9-gnu/sound/core/timer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/core/timer.c	2017-09-27 08:40:05.000000000 -0400
@@ -1622,6 +1622,7 @@ static int snd_timer_user_tselect(struct
 	if (err < 0)
 		goto __err;
 
+	tu->qhead = tu->qtail = tu->qused = 0;
 	kfree(tu->queue);
 	tu->queue = NULL;
 	kfree(tu->tqueue);
@@ -1702,9 +1703,21 @@ static int snd_timer_user_params(struct
 		return -EBADFD;
 	if (copy_from_user(&params, _params, sizeof(params)))
 		return -EFAULT;
-	if (!(t->hw.flags & SNDRV_TIMER_HW_SLAVE) && params.ticks < 1) {
-		err = -EINVAL;
-		goto _end;
+	if (!(t->hw.flags & SNDRV_TIMER_HW_SLAVE)) {
+		u64 resolution;
+
+		if (params.ticks < 1) {
+			err = -EINVAL;
+			goto _end;
+		}
+
+		/* Don't allow resolution less than 1ms */
+		resolution = snd_timer_resolution(tu->timeri);
+		resolution *= params.ticks;
+		if (resolution < 1000000) {
+			err = -EINVAL;
+			goto _end;
+		}
 	}
 	if (params.queue_size > 0 &&
 	    (params.queue_size < 32 || params.queue_size > 1024)) {
@@ -1951,6 +1964,7 @@ static ssize_t snd_timer_user_read(struc
 
 	tu = file->private_data;
 	unit = tu->tread ? sizeof(struct snd_timer_tread) : sizeof(struct snd_timer_read);
+	mutex_lock(&tu->ioctl_lock);
 	spin_lock_irq(&tu->qlock);
 	while ((long)count - result >= unit) {
 		while (!tu->qused) {
@@ -1966,7 +1980,9 @@ static ssize_t snd_timer_user_read(struc
 			add_wait_queue(&tu->qchange_sleep, &wait);
 
 			spin_unlock_irq(&tu->qlock);
+			mutex_unlock(&tu->ioctl_lock);
 			schedule();
+			mutex_lock(&tu->ioctl_lock);
 			spin_lock_irq(&tu->qlock);
 
 			remove_wait_queue(&tu->qchange_sleep, &wait);
@@ -1986,7 +2002,6 @@ static ssize_t snd_timer_user_read(struc
 		tu->qused--;
 		spin_unlock_irq(&tu->qlock);
 
-		mutex_lock(&tu->ioctl_lock);
 		if (tu->tread) {
 			if (copy_to_user(buffer, &tu->tqueue[qhead],
 					 sizeof(struct snd_timer_tread)))
@@ -1996,7 +2011,6 @@ static ssize_t snd_timer_user_read(struc
 					 sizeof(struct snd_timer_read)))
 				err = -EFAULT;
 		}
-		mutex_unlock(&tu->ioctl_lock);
 
 		spin_lock_irq(&tu->qlock);
 		if (err < 0)
@@ -2006,6 +2020,7 @@ static ssize_t snd_timer_user_read(struc
 	}
  _error:
 	spin_unlock_irq(&tu->qlock);
+	mutex_unlock(&tu->ioctl_lock);
 	return result > 0 ? result : err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/firewire/amdtp-stream.c linux-libre-4.9.52-gnu/sound/firewire/amdtp-stream.c
--- linux-libre-4.9-gnu/sound/firewire/amdtp-stream.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/firewire/amdtp-stream.c	2017-09-27 08:40:05.000000000 -0400
@@ -606,7 +606,9 @@ static void out_stream_callback(struct f
 		cycle = increment_cycle_count(cycle, 1);
 		if (handle_out_packet(s, cycle, i) < 0) {
 			s->packet_index = -1;
-			amdtp_stream_pcm_abort(s);
+			if (in_interrupt())
+				amdtp_stream_pcm_abort(s);
+			WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
 			return;
 		}
 	}
@@ -658,7 +660,9 @@ static void in_stream_callback(struct fw
 	/* Queueing error or detecting invalid payload. */
 	if (i < packets) {
 		s->packet_index = -1;
-		amdtp_stream_pcm_abort(s);
+		if (in_interrupt())
+			amdtp_stream_pcm_abort(s);
+		WRITE_ONCE(s->pcm_buffer_pointer, SNDRV_PCM_POS_XRUN);
 		return;
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/firewire/amdtp-stream.h linux-libre-4.9.52-gnu/sound/firewire/amdtp-stream.h
--- linux-libre-4.9-gnu/sound/firewire/amdtp-stream.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/firewire/amdtp-stream.h	2017-09-27 08:40:05.000000000 -0400
@@ -124,7 +124,7 @@ struct amdtp_stream {
 	/* For a PCM substream processing. */
 	struct snd_pcm_substream *pcm;
 	struct tasklet_struct period_tasklet;
-	unsigned int pcm_buffer_pointer;
+	snd_pcm_uframes_t pcm_buffer_pointer;
 	unsigned int pcm_period_pointer;
 
 	/* To wait for first packet. */
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/firewire/iso-resources.c linux-libre-4.9.52-gnu/sound/firewire/iso-resources.c
--- linux-libre-4.9-gnu/sound/firewire/iso-resources.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/firewire/iso-resources.c	2017-09-27 08:40:05.000000000 -0400
@@ -210,9 +210,14 @@ EXPORT_SYMBOL(fw_iso_resources_update);
  */
 void fw_iso_resources_free(struct fw_iso_resources *r)
 {
-	struct fw_card *card = fw_parent_device(r->unit)->card;
+	struct fw_card *card;
 	int bandwidth, channel;
 
+	/* Not initialized. */
+	if (r->unit == NULL)
+		return;
+	card = fw_parent_device(r->unit)->card;
+
 	mutex_lock(&r->mutex);
 
 	if (r->allocated) {
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/firewire/lib.h linux-libre-4.9.52-gnu/sound/firewire/lib.h
--- linux-libre-4.9-gnu/sound/firewire/lib.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/firewire/lib.h	2017-09-27 08:40:05.000000000 -0400
@@ -45,7 +45,7 @@ struct snd_fw_async_midi_port {
 
 	struct snd_rawmidi_substream *substream;
 	snd_fw_async_midi_port_fill fill;
-	unsigned int consume_bytes;
+	int consume_bytes;
 };
 
 int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/firewire/oxfw/oxfw.c linux-libre-4.9.52-gnu/sound/firewire/oxfw/oxfw.c
--- linux-libre-4.9-gnu/sound/firewire/oxfw/oxfw.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/firewire/oxfw/oxfw.c	2017-09-27 08:40:05.000000000 -0400
@@ -226,11 +226,11 @@ static void do_registration(struct work_
 	if (err < 0)
 		goto error;
 
-	err = detect_quirks(oxfw);
+	err = snd_oxfw_stream_discover(oxfw);
 	if (err < 0)
 		goto error;
 
-	err = snd_oxfw_stream_discover(oxfw);
+	err = detect_quirks(oxfw);
 	if (err < 0)
 		goto error;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/firewire/tascam/tascam-stream.c linux-libre-4.9.52-gnu/sound/firewire/tascam/tascam-stream.c
--- linux-libre-4.9-gnu/sound/firewire/tascam/tascam-stream.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/firewire/tascam/tascam-stream.c	2017-09-27 08:40:05.000000000 -0400
@@ -343,7 +343,7 @@ int snd_tscm_stream_init_duplex(struct s
 	if (err < 0)
 		amdtp_stream_destroy(&tscm->rx_stream);
 
-	return 0;
+	return err;
 }
 
 /* At bus reset, streaming is stopped and some registers are clear. */
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/hda/hdac_controller.c linux-libre-4.9.52-gnu/sound/hda/hdac_controller.c
--- linux-libre-4.9-gnu/sound/hda/hdac_controller.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/hda/hdac_controller.c	2017-09-27 08:40:05.000000000 -0400
@@ -106,7 +106,11 @@ void snd_hdac_bus_stop_cmd_io(struct hda
 	/* disable ringbuffer DMAs */
 	snd_hdac_chip_writeb(bus, RIRBCTL, 0);
 	snd_hdac_chip_writeb(bus, CORBCTL, 0);
+	spin_unlock_irq(&bus->reg_lock);
+
 	hdac_wait_for_cmd_dmas(bus);
+
+	spin_lock_irq(&bus->reg_lock);
 	/* disable unsolicited responses */
 	snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, 0);
 	spin_unlock_irq(&bus->reg_lock);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/isa/msnd/msnd_midi.c linux-libre-4.9.52-gnu/sound/isa/msnd/msnd_midi.c
--- linux-libre-4.9-gnu/sound/isa/msnd/msnd_midi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/isa/msnd/msnd_midi.c	2017-09-27 08:40:05.000000000 -0400
@@ -120,24 +120,24 @@ void snd_msndmidi_input_read(void *mpuv)
 	unsigned long flags;
 	struct snd_msndmidi *mpu = mpuv;
 	void *pwMIDQData = mpu->dev->mappedbase + MIDQ_DATA_BUFF;
+	u16 head, tail, size;
 
 	spin_lock_irqsave(&mpu->input_lock, flags);
-	while (readw(mpu->dev->MIDQ + JQS_wTail) !=
-	       readw(mpu->dev->MIDQ + JQS_wHead)) {
-		u16 wTmp, val;
-		val = readw(pwMIDQData + 2 * readw(mpu->dev->MIDQ + JQS_wHead));
-
-			if (test_bit(MSNDMIDI_MODE_BIT_INPUT_TRIGGER,
-				     &mpu->mode))
-				snd_rawmidi_receive(mpu->substream_input,
-						    (unsigned char *)&val, 1);
+	head = readw(mpu->dev->MIDQ + JQS_wHead);
+	tail = readw(mpu->dev->MIDQ + JQS_wTail);
+	size = readw(mpu->dev->MIDQ + JQS_wSize);
+	if (head > size || tail > size)
+		goto out;
+	while (head != tail) {
+		unsigned char val = readw(pwMIDQData + 2 * head);
 
-		wTmp = readw(mpu->dev->MIDQ + JQS_wHead) + 1;
-		if (wTmp > readw(mpu->dev->MIDQ + JQS_wSize))
-			writew(0,  mpu->dev->MIDQ + JQS_wHead);
-		else
-			writew(wTmp,  mpu->dev->MIDQ + JQS_wHead);
+		if (test_bit(MSNDMIDI_MODE_BIT_INPUT_TRIGGER, &mpu->mode))
+			snd_rawmidi_receive(mpu->substream_input, &val, 1);
+		if (++head > size)
+			head = 0;
+		writew(head, mpu->dev->MIDQ + JQS_wHead);
 	}
+ out:
 	spin_unlock_irqrestore(&mpu->input_lock, flags);
 }
 EXPORT_SYMBOL(snd_msndmidi_input_read);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/isa/msnd/msnd_pinnacle.c linux-libre-4.9.52-gnu/sound/isa/msnd/msnd_pinnacle.c
--- linux-libre-4.9-gnu/sound/isa/msnd/msnd_pinnacle.c	2016-12-11 18:02:35.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/isa/msnd/msnd_pinnacle.c	2017-09-27 15:20:25.000000000 -0400
@@ -170,23 +170,24 @@ static irqreturn_t snd_msnd_interrupt(in
 {
 	struct snd_msnd *chip = dev_id;
 	void *pwDSPQData = chip->mappedbase + DSPQ_DATA_BUFF;
+	u16 head, tail, size;
 
 	/* Send ack to DSP */
 	/* inb(chip->io + HP_RXL); */
 
 	/* Evaluate queued DSP messages */
-	while (readw(chip->DSPQ + JQS_wTail) != readw(chip->DSPQ + JQS_wHead)) {
-		u16 wTmp;
-
-		snd_msnd_eval_dsp_msg(chip,
-			readw(pwDSPQData + 2 * readw(chip->DSPQ + JQS_wHead)));
-
-		wTmp = readw(chip->DSPQ + JQS_wHead) + 1;
-		if (wTmp > readw(chip->DSPQ + JQS_wSize))
-			writew(0, chip->DSPQ + JQS_wHead);
-		else
-			writew(wTmp, chip->DSPQ + JQS_wHead);
+	head = readw(chip->DSPQ + JQS_wHead);
+	tail = readw(chip->DSPQ + JQS_wTail);
+	size = readw(chip->DSPQ + JQS_wSize);
+	if (head > size || tail > size)
+		goto out;
+	while (head != tail) {
+		snd_msnd_eval_dsp_msg(chip, readw(pwDSPQData + 2 * head));
+		if (++head > size)
+			head = 0;
+		writew(head, chip->DSPQ + JQS_wHead);
 	}
+ out:
 	/* Send ack to DSP */
 	inb(chip->io + HP_RXL);
 	return IRQ_HANDLED;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/ctxfi/cthw20k1.c linux-libre-4.9.52-gnu/sound/pci/ctxfi/cthw20k1.c
--- linux-libre-4.9-gnu/sound/pci/ctxfi/cthw20k1.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/ctxfi/cthw20k1.c	2017-09-27 08:40:05.000000000 -0400
@@ -27,12 +27,6 @@
 #include "cthw20k1.h"
 #include "ct20k1reg.h"
 
-#if BITS_PER_LONG == 32
-#define CT_XFI_DMA_MASK		DMA_BIT_MASK(32) /* 32 bit PTE */
-#else
-#define CT_XFI_DMA_MASK		DMA_BIT_MASK(64) /* 64 bit PTE */
-#endif
-
 struct hw20k1 {
 	struct hw hw;
 	spinlock_t reg_20k1_lock;
@@ -1904,19 +1898,18 @@ static int hw_card_start(struct hw *hw)
 {
 	int err;
 	struct pci_dev *pci = hw->pci;
+	const unsigned int dma_bits = BITS_PER_LONG;
 
 	err = pci_enable_device(pci);
 	if (err < 0)
 		return err;
 
 	/* Set DMA transfer mask */
-	if (dma_set_mask(&pci->dev, CT_XFI_DMA_MASK) < 0 ||
-	    dma_set_coherent_mask(&pci->dev, CT_XFI_DMA_MASK) < 0) {
-		dev_err(hw->card->dev,
-			"architecture does not support PCI busmaster DMA with mask 0x%llx\n",
-			CT_XFI_DMA_MASK);
-		err = -ENXIO;
-		goto error1;
+	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
+	} else {
+		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
 	}
 
 	if (!hw->io_base) {
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/ctxfi/cthw20k2.c linux-libre-4.9.52-gnu/sound/pci/ctxfi/cthw20k2.c
--- linux-libre-4.9-gnu/sound/pci/ctxfi/cthw20k2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/ctxfi/cthw20k2.c	2017-09-27 08:40:05.000000000 -0400
@@ -26,12 +26,6 @@
 #include "cthw20k2.h"
 #include "ct20k2reg.h"
 
-#if BITS_PER_LONG == 32
-#define CT_XFI_DMA_MASK		DMA_BIT_MASK(32) /* 32 bit PTE */
-#else
-#define CT_XFI_DMA_MASK		DMA_BIT_MASK(64) /* 64 bit PTE */
-#endif
-
 struct hw20k2 {
 	struct hw hw;
 	/* for i2c */
@@ -2029,19 +2023,18 @@ static int hw_card_start(struct hw *hw)
 	int err = 0;
 	struct pci_dev *pci = hw->pci;
 	unsigned int gctl;
+	const unsigned int dma_bits = BITS_PER_LONG;
 
 	err = pci_enable_device(pci);
 	if (err < 0)
 		return err;
 
 	/* Set DMA transfer mask */
-	if (dma_set_mask(&pci->dev, CT_XFI_DMA_MASK) < 0 ||
-	    dma_set_coherent_mask(&pci->dev, CT_XFI_DMA_MASK) < 0) {
-		dev_err(hw->card->dev,
-			"architecture does not support PCI busmaster DMA with mask 0x%llx\n",
-			CT_XFI_DMA_MASK);
-		err = -ENXIO;
-		goto error1;
+	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
+	} else {
+		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
+		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
 	}
 
 	if (!hw->io_base) {
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/fm801.c linux-libre-4.9.52-gnu/sound/pci/fm801.c
--- linux-libre-4.9-gnu/sound/pci/fm801.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/fm801.c	2017-09-27 08:40:05.000000000 -0400
@@ -1235,8 +1235,6 @@ static int snd_fm801_create(struct snd_c
 		}
 	}
 
-	snd_fm801_chip_init(chip);
-
 	if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
 		if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
 				IRQF_SHARED, KBUILD_MODNAME, chip)) {
@@ -1248,6 +1246,8 @@ static int snd_fm801_create(struct snd_c
 		pci_set_master(pci);
 	}
 
+	snd_fm801_chip_init(chip);
+
 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 		snd_fm801_free(chip);
 		return err;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/hda_auto_parser.c linux-libre-4.9.52-gnu/sound/pci/hda/hda_auto_parser.c
--- linux-libre-4.9-gnu/sound/pci/hda/hda_auto_parser.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/hda_auto_parser.c	2017-09-27 08:40:05.000000000 -0400
@@ -884,6 +884,8 @@ void snd_hda_apply_fixup(struct hda_code
 }
 EXPORT_SYMBOL_GPL(snd_hda_apply_fixup);
 
+#define IGNORE_SEQ_ASSOC (~(AC_DEFCFG_SEQUENCE | AC_DEFCFG_DEF_ASSOC))
+
 static bool pin_config_match(struct hda_codec *codec,
 			     const struct hda_pintbl *pins)
 {
@@ -901,7 +903,7 @@ static bool pin_config_match(struct hda_
 		for (; t_pins->nid; t_pins++) {
 			if (t_pins->nid == nid) {
 				found = 1;
-				if (t_pins->val == cfg)
+				if ((t_pins->val & IGNORE_SEQ_ASSOC) == (cfg & IGNORE_SEQ_ASSOC))
 					break;
 				else if ((cfg & 0xf0000000) == 0x40000000 && (t_pins->val & 0xf0000000) == 0x40000000)
 					break;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/hda_codec.h linux-libre-4.9.52-gnu/sound/pci/hda/hda_codec.h
--- linux-libre-4.9-gnu/sound/pci/hda/hda_codec.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/hda_codec.h	2017-09-27 08:40:05.000000000 -0400
@@ -294,6 +294,8 @@ struct hda_codec {
 
 #define list_for_each_codec(c, bus) \
 	list_for_each_entry(c, &(bus)->core.codec_list, core.list)
+#define list_for_each_codec_safe(c, n, bus)				\
+	list_for_each_entry_safe(c, n, &(bus)->core.codec_list, core.list)
 
 /* snd_hda_codec_read/write optional flags */
 #define HDA_RW_NO_RESPONSE_FALLBACK	(1 << 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/hda_controller.c linux-libre-4.9.52-gnu/sound/pci/hda/hda_controller.c
--- linux-libre-4.9-gnu/sound/pci/hda/hda_controller.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/hda_controller.c	2017-09-27 08:40:05.000000000 -0400
@@ -1333,8 +1333,12 @@ EXPORT_SYMBOL_GPL(azx_probe_codecs);
 /* configure each codec instance */
 int azx_codec_configure(struct azx *chip)
 {
-	struct hda_codec *codec;
-	list_for_each_codec(codec, &chip->bus) {
+	struct hda_codec *codec, *next;
+
+	/* use _safe version here since snd_hda_codec_configure() deregisters
+	 * the device upon error and deletes itself from the bus list.
+	 */
+	list_for_each_codec_safe(codec, next, &chip->bus) {
 		snd_hda_codec_configure(codec);
 	}
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/hda_generic.c linux-libre-4.9.52-gnu/sound/pci/hda/hda_generic.c
--- linux-libre-4.9-gnu/sound/pci/hda/hda_generic.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/hda_generic.c	2017-09-27 08:40:05.000000000 -0400
@@ -3169,6 +3169,7 @@ static int check_dyn_adc_switch(struct h
 						spec->input_paths[i][nums]);
 					spec->input_paths[i][nums] =
 						spec->input_paths[i][n];
+					spec->input_paths[i][n] = 0;
 				}
 			}
 			nums++;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/hda_intel.c linux-libre-4.9.52-gnu/sound/pci/hda/hda_intel.c
--- linux-libre-4.9-gnu/sound/pci/hda/hda_intel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/hda_intel.c	2017-09-27 08:40:05.000000000 -0400
@@ -2155,7 +2155,20 @@ static void azx_remove(struct pci_dev *p
 		/* cancel the pending probing work */
 		chip = card->private_data;
 		hda = container_of(chip, struct hda_intel, chip);
+		/* FIXME: below is an ugly workaround.
+		 * Both device_release_driver() and driver_probe_device()
+		 * take *both* the device's and its parent's lock before
+		 * calling the remove() and probe() callbacks.  The codec
+		 * probe takes the locks of both the codec itself and its
+		 * parent, i.e. the PCI controller dev.  Meanwhile, when
+		 * the PCI controller is unbound, it takes its lock, too
+		 * ==> ouch, a deadlock!
+		 * As a workaround, we unlock temporarily here the controller
+		 * device during cancel_work_sync() call.
+		 */
+		device_unlock(&pci->dev);
 		cancel_work_sync(&hda->probe_work);
+		device_lock(&pci->dev);
 
 		snd_card_free(card);
 	}
@@ -2197,9 +2210,9 @@ static const struct pci_device_id azx_id
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
 	/* Lewisburg */
 	{ PCI_DEVICE(0x8086, 0xa1f0),
-	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
 	{ PCI_DEVICE(0x8086, 0xa270),
-	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
 	/* Lynx Point-LP */
 	{ PCI_DEVICE(0x8086, 0x9c20),
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/patch_ca0132.c linux-libre-4.9.52-gnu/sound/pci/hda/patch_ca0132.c
--- linux-libre-4.9-gnu/sound/pci/hda/patch_ca0132.c	2016-12-11 18:02:22.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/patch_ca0132.c	2017-09-27 15:20:00.000000000 -0400
@@ -780,6 +780,7 @@ static const struct hda_pintbl alienware
 static const struct snd_pci_quirk ca0132_quirks[] = {
 	SND_PCI_QUIRK(0x1028, 0x0685, "Alienware 15 2015", QUIRK_ALIENWARE),
 	SND_PCI_QUIRK(0x1028, 0x0688, "Alienware 17 2015", QUIRK_ALIENWARE),
+	SND_PCI_QUIRK(0x1028, 0x0708, "Alienware 15 R2 2016", QUIRK_ALIENWARE),
 	{}
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/patch_conexant.c linux-libre-4.9.52-gnu/sound/pci/hda/patch_conexant.c
--- linux-libre-4.9-gnu/sound/pci/hda/patch_conexant.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/patch_conexant.c	2017-09-27 08:40:05.000000000 -0400
@@ -262,6 +262,7 @@ enum {
 	CXT_FIXUP_CAP_MIX_AMP_5047,
 	CXT_FIXUP_MUTE_LED_EAPD,
 	CXT_FIXUP_HP_SPECTRE,
+	CXT_FIXUP_HP_GATE_MIC,
 };
 
 /* for hda_fixup_thinkpad_acpi() */
@@ -633,6 +634,17 @@ static void cxt_fixup_cap_mix_amp_5047(s
 				  (1 << AC_AMPCAP_MUTE_SHIFT));
 }
 
+static void cxt_fixup_hp_gate_mic_jack(struct hda_codec *codec,
+				       const struct hda_fixup *fix,
+				       int action)
+{
+	/* the mic pin (0x19) doesn't give an unsolicited event;
+	 * probe the mic pin together with the headphone pin (0x16)
+	 */
+	if (action == HDA_FIXUP_ACT_PROBE)
+		snd_hda_jack_set_gating_jack(codec, 0x19, 0x16);
+}
+
 /* ThinkPad X200 & co with cxt5051 */
 static const struct hda_pintbl cxt_pincfg_lenovo_x200[] = {
 	{ 0x16, 0x042140ff }, /* HP (seq# overridden) */
@@ -774,6 +786,10 @@ static const struct hda_fixup cxt_fixups
 			{ }
 		}
 	},
+	[CXT_FIXUP_HP_GATE_MIC] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cxt_fixup_hp_gate_mic_jack,
+	},
 };
 
 static const struct snd_pci_quirk cxt5045_fixups[] = {
@@ -824,6 +840,7 @@ static const struct snd_pci_quirk cxt506
 	SND_PCI_QUIRK(0x1025, 0x054c, "Acer Aspire 3830TG", CXT_FIXUP_ASPIRE_DMIC),
 	SND_PCI_QUIRK(0x1025, 0x054f, "Acer Aspire 4830T", CXT_FIXUP_ASPIRE_DMIC),
 	SND_PCI_QUIRK(0x103c, 0x8174, "HP Spectre x360", CXT_FIXUP_HP_SPECTRE),
+	SND_PCI_QUIRK(0x103c, 0x8115, "HP Z1 Gen3", CXT_FIXUP_HP_GATE_MIC),
 	SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
 	SND_PCI_QUIRK(0x152d, 0x0833, "OLPC XO-1.5", CXT_FIXUP_OLPC_XO),
 	SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
@@ -837,6 +854,7 @@ static const struct snd_pci_quirk cxt506
 	SND_PCI_QUIRK(0x17aa, 0x390b, "Lenovo G50-80", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
+	SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo G50-70", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/patch_hdmi.c linux-libre-4.9.52-gnu/sound/pci/hda/patch_hdmi.c
--- linux-libre-4.9-gnu/sound/pci/hda/patch_hdmi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/patch_hdmi.c	2017-09-27 08:40:05.000000000 -0400
@@ -3600,11 +3600,15 @@ HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",
 HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",	patch_generic_hdmi),
 HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",	patch_generic_hdmi),
 HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",	patch_generic_hdmi),
+HDA_CODEC_ENTRY(0x10de0001, "MCP73 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0004, "GPU 04 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
 HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",	patch_nvhdmi_8ch_7x),
+HDA_CODEC_ENTRY(0x10de0008, "GPU 08 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0009, "GPU 09 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",	patch_nvhdmi),
@@ -3631,16 +3635,40 @@ HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI
 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0045, "GPU 45 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0050, "GPU 50 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0052, "GPU 52 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0061, "GPU 61 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0062, "GPU 62 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0073, "GPU 73 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0074, "GPU 74 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0076, "GPU 76 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007b, "GPU 7b HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007c, "GPU 7c HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de007e, "GPU 7e HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0080, "GPU 80 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0081, "GPU 81 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0084, "GPU 84 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0090, "GPU 90 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0091, "GPU 91 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0092, "GPU 92 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0094, "GPU 94 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0095, "GPU 95 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0097, "GPU 97 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0098, "GPU 98 HDMI/DP",	patch_nvhdmi),
+HDA_CODEC_ENTRY(0x10de0099, "GPU 99 HDMI/DP",	patch_nvhdmi),
 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
+HDA_CODEC_ENTRY(0x10de8067, "MCP67/68 HDMI",	patch_nvhdmi_2ch),
 HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",	patch_via_hdmi),
 HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",	patch_via_hdmi),
 HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",	patch_generic_hdmi),
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/patch_realtek.c linux-libre-4.9.52-gnu/sound/pci/hda/patch_realtek.c
--- linux-libre-4.9-gnu/sound/pci/hda/patch_realtek.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/patch_realtek.c	2017-09-27 08:40:05.000000000 -0400
@@ -2230,8 +2230,10 @@ static const struct snd_pci_quirk alc882
 	SND_PCI_QUIRK(0x1043, 0x1971, "Asus W2JC", ALC882_FIXUP_ASUS_W2JC),
 	SND_PCI_QUIRK(0x1043, 0x835f, "Asus Eee 1601", ALC888_FIXUP_EEE1601),
 	SND_PCI_QUIRK(0x1043, 0x84bc, "ASUS ET2700", ALC887_FIXUP_ASUS_BASS),
+	SND_PCI_QUIRK(0x1043, 0x8691, "ASUS ROG Ranger VIII", ALC882_FIXUP_GPIO3),
 	SND_PCI_QUIRK(0x104d, 0x9047, "Sony Vaio TT", ALC889_FIXUP_VAIO_TT),
 	SND_PCI_QUIRK(0x104d, 0x905a, "Sony Vaio Z", ALC882_FIXUP_NO_PRIMARY_HP),
+	SND_PCI_QUIRK(0x104d, 0x9060, "Sony Vaio VPCL14M1R", ALC882_FIXUP_NO_PRIMARY_HP),
 	SND_PCI_QUIRK(0x104d, 0x9043, "Sony Vaio VGC-LN51JGB", ALC882_FIXUP_NO_PRIMARY_HP),
 	SND_PCI_QUIRK(0x104d, 0x9044, "Sony VAIO AiO", ALC882_FIXUP_NO_PRIMARY_HP),
 
@@ -4845,6 +4847,7 @@ enum {
 	ALC292_FIXUP_DISABLE_AAMIX,
 	ALC293_FIXUP_DISABLE_AAMIX_MULTIJACK,
 	ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
+	ALC298_FIXUP_DELL_AIO_MIC_NO_PRESENCE,
 	ALC275_FIXUP_DELL_XPS,
 	ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE,
 	ALC293_FIXUP_LENOVO_SPK_NOISE,
@@ -5445,6 +5448,15 @@ static const struct hda_fixup alc269_fix
 		.chained = true,
 		.chain_id = ALC269_FIXUP_HEADSET_MODE
 	},
+	[ALC298_FIXUP_DELL_AIO_MIC_NO_PRESENCE] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x18, 0x01a1913c }, /* use as headset mic, without its own jack detect */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE
+	},
 	[ALC275_FIXUP_DELL_XPS] = {
 		.type = HDA_FIXUP_VERBS,
 		.v.verbs = (const struct hda_verb[]) {
@@ -5517,7 +5529,7 @@ static const struct hda_fixup alc269_fix
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc298_fixup_speaker_volume,
 		.chained = true,
-		.chain_id = ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
+		.chain_id = ALC298_FIXUP_DELL_AIO_MIC_NO_PRESENCE,
 	},
 	[ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER] = {
 		.type = HDA_FIXUP_PINS,
@@ -5576,6 +5588,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1028, 0x0725, "Dell Inspiron 3162", ALC255_FIXUP_DELL_SPK_NOISE),
 	SND_PCI_QUIRK(0x1028, 0x075b, "Dell XPS 13 9360", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
 	SND_PCI_QUIRK(0x1028, 0x075d, "Dell AIO", ALC298_FIXUP_SPK_VOLUME),
+	SND_PCI_QUIRK(0x1028, 0x0798, "Dell Inspiron 17 7000 Gaming", ALC256_FIXUP_DELL_INSPIRON_7559_SUBWOOFER),
 	SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
@@ -5691,6 +5704,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC292_FIXUP_TPT460),
 	SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
+	SND_PCI_QUIRK(0x17aa, 0x3112, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP),
@@ -5917,6 +5931,9 @@ static const struct snd_hda_pin_quirk al
 		{0x12, 0x90a60180},
 		{0x14, 0x90170120},
 		{0x21, 0x02211030}),
+	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x1b, 0x01011020},
+		{0x21, 0x02211010}),
 	SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
 		{0x12, 0x90a60160},
 		{0x14, 0x90170120},
@@ -6052,6 +6069,8 @@ static const struct snd_hda_pin_quirk al
 		ALC295_STANDARD_PINS,
 		{0x17, 0x21014040},
 		{0x18, 0x21a19050}),
+	SND_HDA_PIN_QUIRK(0x10ec0295, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
+		ALC295_STANDARD_PINS),
 	SND_HDA_PIN_QUIRK(0x10ec0298, 0x1028, "Dell", ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
 		ALC298_STANDARD_PINS,
 		{0x17, 0x90170110}),
@@ -6061,6 +6080,12 @@ static const struct snd_hda_pin_quirk al
 	SND_HDA_PIN_QUIRK(0x10ec0298, 0x1028, "Dell", ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
 		ALC298_STANDARD_PINS,
 		{0x17, 0x90170150}),
+	SND_HDA_PIN_QUIRK(0x10ec0298, 0x1028, "Dell", ALC298_FIXUP_SPK_VOLUME,
+		{0x12, 0xb7a60140},
+		{0x13, 0xb7a60150},
+		{0x17, 0x90170110},
+		{0x1a, 0x03011020},
+		{0x21, 0x03211030}),
 	{}
 };
 
@@ -6940,6 +6965,7 @@ static const struct snd_pci_quirk alc662
 	SND_PCI_QUIRK(0x1043, 0x15a7, "ASUS UX51VZH", ALC662_FIXUP_BASS_16),
 	SND_PCI_QUIRK(0x1043, 0x177d, "ASUS N551", ALC668_FIXUP_ASUS_Nx51),
 	SND_PCI_QUIRK(0x1043, 0x17bd, "ASUS N751", ALC668_FIXUP_ASUS_Nx51),
+	SND_PCI_QUIRK(0x1043, 0x1963, "ASUS X71SL", ALC662_FIXUP_ASUS_MODE8),
 	SND_PCI_QUIRK(0x1043, 0x1b73, "ASUS N55SF", ALC662_FIXUP_BASS_16),
 	SND_PCI_QUIRK(0x1043, 0x1bf3, "ASUS N76VZ", ALC662_FIXUP_BASS_MODE4_CHMAP),
 	SND_PCI_QUIRK(0x1043, 0x8469, "ASUS mobo", ALC662_FIXUP_NO_JACK_DETECT),
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/pci/hda/patch_sigmatel.c linux-libre-4.9.52-gnu/sound/pci/hda/patch_sigmatel.c
--- linux-libre-4.9-gnu/sound/pci/hda/patch_sigmatel.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/pci/hda/patch_sigmatel.c	2017-09-27 08:40:05.000000000 -0400
@@ -1537,6 +1537,8 @@ static const struct snd_pci_quirk stac92
 		      "Dell Inspiron 1501", STAC_9200_DELL_M26),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x01f6,
 		      "unknown Dell", STAC_9200_DELL_M26),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0201,
+		      "Dell Latitude D430", STAC_9200_DELL_M22),
 	/* Panasonic */
 	SND_PCI_QUIRK(0x10f7, 0x8338, "Panasonic CF-74", STAC_9200_PANASONIC),
 	/* Gateway machines needs EAPD to be set on resume */
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/atmel/atmel-classd.c linux-libre-4.9.52-gnu/sound/soc/atmel/atmel-classd.c
--- linux-libre-4.9-gnu/sound/soc/atmel/atmel-classd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/atmel/atmel-classd.c	2017-09-27 08:40:05.000000000 -0400
@@ -349,7 +349,7 @@ static int atmel_classd_codec_dai_digita
 }
 
 #define CLASSD_ACLK_RATE_11M2896_MPY_8 (112896 * 100 * 8)
-#define CLASSD_ACLK_RATE_12M288_MPY_8  (12228 * 1000 * 8)
+#define CLASSD_ACLK_RATE_12M288_MPY_8  (12288 * 1000 * 8)
 
 static struct {
 	int rate;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/codecs/cs4271.c linux-libre-4.9.52-gnu/sound/soc/codecs/cs4271.c
--- linux-libre-4.9-gnu/sound/soc/codecs/cs4271.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/codecs/cs4271.c	2017-09-27 08:40:05.000000000 -0400
@@ -498,7 +498,7 @@ static int cs4271_reset(struct snd_soc_c
 	struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
 
 	if (gpio_is_valid(cs4271->gpio_nreset)) {
-		gpio_set_value(cs4271->gpio_nreset, 0);
+		gpio_direction_output(cs4271->gpio_nreset, 0);
 		mdelay(1);
 		gpio_set_value(cs4271->gpio_nreset, 1);
 		mdelay(1);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/codecs/nau8825.c linux-libre-4.9.52-gnu/sound/soc/codecs/nau8825.c
--- linux-libre-4.9-gnu/sound/soc/codecs/nau8825.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/codecs/nau8825.c	2017-09-27 08:40:05.000000000 -0400
@@ -1928,7 +1928,8 @@ static void nau8825_fll_apply(struct nau
 			NAU8825_FLL_INTEGER_MASK, fll_param->fll_int);
 	/* FLL pre-scaler */
 	regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL4,
-			NAU8825_FLL_REF_DIV_MASK, fll_param->clk_ref_div);
+			NAU8825_FLL_REF_DIV_MASK,
+			fll_param->clk_ref_div << NAU8825_FLL_REF_DIV_SFT);
 	/* select divided VCO input */
 	regmap_update_bits(nau8825->regmap, NAU8825_REG_FLL5,
 		NAU8825_FLL_CLK_SW_MASK, NAU8825_FLL_CLK_SW_REF);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/codecs/nau8825.h linux-libre-4.9.52-gnu/sound/soc/codecs/nau8825.h
--- linux-libre-4.9-gnu/sound/soc/codecs/nau8825.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/codecs/nau8825.h	2017-09-27 08:40:05.000000000 -0400
@@ -129,7 +129,8 @@
 #define NAU8825_FLL_CLK_SRC_FS			(0x3 << NAU8825_FLL_CLK_SRC_SFT)
 
 /* FLL4 (0x07) */
-#define NAU8825_FLL_REF_DIV_MASK		(0x3 << 10)
+#define NAU8825_FLL_REF_DIV_SFT	10
+#define NAU8825_FLL_REF_DIV_MASK	(0x3 << NAU8825_FLL_REF_DIV_SFT)
 
 /* FLL5 (0x08) */
 #define NAU8825_FLL_PDB_DAC_EN		(0x1 << 15)
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/codecs/rt286.c linux-libre-4.9.52-gnu/sound/soc/codecs/rt286.c
--- linux-libre-4.9-gnu/sound/soc/codecs/rt286.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/codecs/rt286.c	2017-09-27 08:40:05.000000000 -0400
@@ -1108,6 +1108,13 @@ static const struct dmi_system_id force_
 			DMI_MATCH(DMI_PRODUCT_NAME, "Kabylake Client platform")
 		}
 	},
+	{
+		.ident = "Thinkpad Helix 2nd",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix 2nd")
+		}
+	},
 
 	{ }
 };
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/codecs/rt5645.c linux-libre-4.9.52-gnu/sound/soc/codecs/rt5645.c
--- linux-libre-4.9-gnu/sound/soc/codecs/rt5645.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/codecs/rt5645.c	2017-09-27 08:40:05.000000000 -0400
@@ -3833,6 +3833,9 @@ static int rt5645_i2c_probe(struct i2c_c
 		}
 	}
 
+	regmap_update_bits(rt5645->regmap, RT5645_ADDA_CLK1,
+		RT5645_I2S_PD1_MASK, RT5645_I2S_PD1_2);
+
 	if (rt5645->pdata.jd_invert) {
 		regmap_update_bits(rt5645->regmap, RT5645_IRQ_CTRL2,
 			RT5645_JD_1_1_MASK, RT5645_JD_1_1_INV);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/codecs/rt5670.c linux-libre-4.9.52-gnu/sound/soc/codecs/rt5670.c
--- linux-libre-4.9-gnu/sound/soc/codecs/rt5670.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/codecs/rt5670.c	2017-09-27 08:40:05.000000000 -0400
@@ -2813,6 +2813,8 @@ MODULE_DEVICE_TABLE(i2c, rt5670_i2c_id);
 #ifdef CONFIG_ACPI
 static const struct acpi_device_id rt5670_acpi_match[] = {
 	{ "10EC5670", 0},
+	{ "10EC5672", 0},
+	{ "10EC5640", 0}, /* quirk */
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, rt5670_acpi_match);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/codecs/tlv320aic3x.c linux-libre-4.9.52-gnu/sound/soc/codecs/tlv320aic3x.c
--- linux-libre-4.9-gnu/sound/soc/codecs/tlv320aic3x.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/codecs/tlv320aic3x.c	2017-09-27 08:40:05.000000000 -0400
@@ -126,6 +126,16 @@ static const struct reg_default aic3x_re
 	{ 108, 0x00 }, { 109, 0x00 },
 };
 
+static bool aic3x_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AIC3X_RESET:
+		return true;
+	default:
+		return false;
+	}
+}
+
 static const struct regmap_config aic3x_regmap = {
 	.reg_bits = 8,
 	.val_bits = 8,
@@ -133,6 +143,9 @@ static const struct regmap_config aic3x_
 	.max_register = DAC_ICC_ADJ,
 	.reg_defaults = aic3x_reg,
 	.num_reg_defaults = ARRAY_SIZE(aic3x_reg),
+
+	.volatile_reg = aic3x_volatile_reg,
+
 	.cache_type = REGCACHE_RBTREE,
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/fsl/fsl_ssi.c linux-libre-4.9.52-gnu/sound/soc/fsl/fsl_ssi.c
--- linux-libre-4.9-gnu/sound/soc/fsl/fsl_ssi.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/fsl/fsl_ssi.c	2017-09-27 08:40:05.000000000 -0400
@@ -224,6 +224,12 @@ struct fsl_ssi_soc_data {
  * @dbg_stats: Debugging statistics
  *
  * @soc: SoC specific data
+ *
+ * @fifo_watermark: the FIFO watermark setting.  Notifies DMA when
+ *             there are @fifo_watermark or fewer words in TX fifo or
+ *             @fifo_watermark or more empty words in RX fifo.
+ * @dma_maxburst: max number of words to transfer in one go.  So far,
+ *             this is always the same as fifo_watermark.
  */
 struct fsl_ssi_private {
 	struct regmap *regs;
@@ -263,6 +269,9 @@ struct fsl_ssi_private {
 
 	const struct fsl_ssi_soc_data *soc;
 	struct device *dev;
+
+	u32 fifo_watermark;
+	u32 dma_maxburst;
 };
 
 /*
@@ -1051,21 +1060,7 @@ static int _fsl_ssi_set_dai_fmt(struct d
 	regmap_write(regs, CCSR_SSI_SRCR, srcr);
 	regmap_write(regs, CCSR_SSI_SCR, scr);
 
-	/*
-	 * Set the watermark for transmit FIFI 0 and receive FIFO 0. We don't
-	 * use FIFO 1. We program the transmit water to signal a DMA transfer
-	 * if there are only two (or fewer) elements left in the FIFO. Two
-	 * elements equals one frame (left channel, right channel). This value,
-	 * however, depends on the depth of the transmit buffer.
-	 *
-	 * We set the watermark on the same level as the DMA burstsize.  For
-	 * fiq it is probably better to use the biggest possible watermark
-	 * size.
-	 */
-	if (ssi_private->use_dma)
-		wm = ssi_private->fifo_depth - 2;
-	else
-		wm = ssi_private->fifo_depth;
+	wm = ssi_private->fifo_watermark;
 
 	regmap_write(regs, CCSR_SSI_SFCSR,
 			CCSR_SSI_SFCSR_TFWM0(wm) | CCSR_SSI_SFCSR_RFWM0(wm) |
@@ -1373,12 +1368,8 @@ static int fsl_ssi_imx_probe(struct plat
 		dev_dbg(&pdev->dev, "could not get baud clock: %ld\n",
 			 PTR_ERR(ssi_private->baudclk));
 
-	/*
-	 * We have burstsize be "fifo_depth - 2" to match the SSI
-	 * watermark setting in fsl_ssi_startup().
-	 */
-	ssi_private->dma_params_tx.maxburst = ssi_private->fifo_depth - 2;
-	ssi_private->dma_params_rx.maxburst = ssi_private->fifo_depth - 2;
+	ssi_private->dma_params_tx.maxburst = ssi_private->dma_maxburst;
+	ssi_private->dma_params_rx.maxburst = ssi_private->dma_maxburst;
 	ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0;
 	ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0;
 
@@ -1543,6 +1534,47 @@ static int fsl_ssi_probe(struct platform
                 /* Older 8610 DTs didn't have the fifo-depth property */
 		ssi_private->fifo_depth = 8;
 
+	/*
+	 * Set the watermark for transmit FIFO 0 and receive FIFO 0. We don't
+	 * use FIFO 1 but set the watermark appropriately nontheless.
+	 * We program the transmit water to signal a DMA transfer
+	 * if there are N elements left in the FIFO. For chips with 15-deep
+	 * FIFOs, set watermark to 8.  This allows the SSI to operate at a
+	 * high data rate without channel slipping. Behavior is unchanged
+	 * for the older chips with a fifo depth of only 8.  A value of 4
+	 * might be appropriate for the older chips, but is left at
+	 * fifo_depth-2 until sombody has a chance to test.
+	 *
+	 * We set the watermark on the same level as the DMA burstsize.  For
+	 * fiq it is probably better to use the biggest possible watermark
+	 * size.
+	 */
+	switch (ssi_private->fifo_depth) {
+	case 15:
+		/*
+		 * 2 samples is not enough when running at high data
+		 * rates (like 48kHz @ 16 bits/channel, 16 channels)
+		 * 8 seems to split things evenly and leave enough time
+		 * for the DMA to fill the FIFO before it's over/under
+		 * run.
+		 */
+		ssi_private->fifo_watermark = 8;
+		ssi_private->dma_maxburst = 8;
+		break;
+	case 8:
+	default:
+		/*
+		 * maintain old behavior for older chips.
+		 * Keeping it the same because I don't have an older
+		 * board to test with.
+		 * I suspect this could be changed to be something to
+		 * leave some more space in the fifo.
+		 */
+		ssi_private->fifo_watermark = ssi_private->fifo_depth - 2;
+		ssi_private->dma_maxburst = ssi_private->fifo_depth - 2;
+		break;
+	}
+
 	dev_set_drvdata(&pdev->dev, ssi_private);
 
 	if (ssi_private->soc->imx) {
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/atom/sst/sst_acpi.c linux-libre-4.9.52-gnu/sound/soc/intel/atom/sst/sst_acpi.c
--- linux-libre-4.9-gnu/sound/soc/intel/atom/sst/sst_acpi.c	2016-12-11 18:03:32.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/atom/sst/sst_acpi.c	2017-09-27 15:21:29.000000000 -0400
@@ -400,6 +400,7 @@ static int sst_acpi_remove(struct platfo
 static unsigned long cht_machine_id;
 
 #define CHT_SURFACE_MACH 1
+#define BYT_THINKPAD_10  2
 
 static int cht_surface_quirk_cb(const struct dmi_system_id *id)
 {
@@ -407,6 +408,23 @@ static int cht_surface_quirk_cb(const st
 	return 1;
 }
 
+static int byt_thinkpad10_quirk_cb(const struct dmi_system_id *id)
+{
+	cht_machine_id = BYT_THINKPAD_10;
+	return 1;
+}
+
+
+static const struct dmi_system_id byt_table[] = {
+	{
+		.callback = byt_thinkpad10_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "20C3001VHH"),
+		},
+	},
+	{ }
+};
 
 static const struct dmi_system_id cht_table[] = {
 	{
@@ -424,6 +442,10 @@ static struct sst_acpi_mach cht_surface_
 	"10EC5640", "cht-bsw-rt5645", "/*(DEBLOBBED)*/", "cht-bsw", NULL,
 								&chv_platform_data };
 
+static struct sst_acpi_mach byt_thinkpad_10 = {
+	"10EC5640", "cht-bsw-rt5672", "/*(DEBLOBBED)*/", "cht-bsw", NULL,
+	                                                        &byt_rvp_platform_data };
+
 static struct sst_acpi_mach *cht_quirk(void *arg)
 {
 	struct sst_acpi_mach *mach = arg;
@@ -436,8 +458,21 @@ static struct sst_acpi_mach *cht_quirk(v
 		return mach;
 }
 
+static struct sst_acpi_mach *byt_quirk(void *arg)
+{
+	struct sst_acpi_mach *mach = arg;
+
+	dmi_check_system(byt_table);
+
+	if (cht_machine_id == BYT_THINKPAD_10)
+		return &byt_thinkpad_10;
+	else
+		return mach;
+}
+
+
 static struct sst_acpi_mach sst_acpi_bytcr[] = {
-	{"10EC5640", "bytcr_rt5640", "/*(DEBLOBBED)*/", "bytcr_rt5640", NULL,
+	{"10EC5640", "bytcr_rt5640", "/*(DEBLOBBED)*/", "bytcr_rt5640", byt_quirk,
 						&byt_rvp_platform_data },
 	{"10EC5642", "bytcr_rt5640", "/*(DEBLOBBED)*/", "bytcr_rt5640", NULL,
 						&byt_rvp_platform_data },
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/atom/sst-mfld-platform-pcm.c linux-libre-4.9.52-gnu/sound/soc/intel/atom/sst-mfld-platform-pcm.c
--- linux-libre-4.9-gnu/sound/soc/intel/atom/sst-mfld-platform-pcm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/atom/sst-mfld-platform-pcm.c	2017-09-27 08:40:05.000000000 -0400
@@ -771,6 +771,9 @@ static int sst_soc_prepare(struct device
 	struct sst_data *drv = dev_get_drvdata(dev);
 	struct snd_soc_pcm_runtime *rtd;
 
+	if (!drv->soc_card)
+		return 0;
+
 	/* suspend all pcms first */
 	snd_soc_suspend(drv->soc_card->dev);
 	snd_soc_poweroff(drv->soc_card->dev);
@@ -793,6 +796,9 @@ static void sst_soc_complete(struct devi
 	struct sst_data *drv = dev_get_drvdata(dev);
 	struct snd_soc_pcm_runtime *rtd;
 
+	if (!drv->soc_card)
+		return;
+
 	/* restart SSPs */
 	list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
 		struct snd_soc_dai *dai = rtd->cpu_dai;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/boards/bytcr_rt5640.c linux-libre-4.9.52-gnu/sound/soc/intel/boards/bytcr_rt5640.c
--- linux-libre-4.9-gnu/sound/soc/intel/boards/bytcr_rt5640.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/boards/bytcr_rt5640.c	2017-09-27 08:40:05.000000000 -0400
@@ -57,9 +57,7 @@ struct byt_rt5640_private {
 	struct clk *mclk;
 };
 
-static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
-					BYT_RT5640_DMIC_EN |
-					BYT_RT5640_MCLK_EN;
+static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
 
 static void log_quirks(struct device *dev)
 {
@@ -144,7 +142,7 @@ static int platform_clock_control(struct
 		 * for Jack detection and button press
 		 */
 		ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
-					     0,
+					     48000 * 512,
 					     SND_SOC_CLOCK_IN);
 		if (!ret) {
 			if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk)
@@ -389,6 +387,16 @@ static const struct dmi_system_id byt_rt
 						 BYT_RT5640_SSP0_AIF1),
 
 	},
+	{
+		.callback = byt_rt5640_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+		},
+		.driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
+						 BYT_RT5640_MCLK_EN |
+						 BYT_RT5640_SSP0_AIF1),
+
+	},
 	{}
 };
 
@@ -613,7 +621,7 @@ static struct snd_soc_dai_link byt_rt564
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
+		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
@@ -626,7 +634,6 @@ static struct snd_soc_dai_link byt_rt564
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
@@ -653,6 +660,7 @@ static struct snd_soc_dai_link byt_rt564
 						| SND_SOC_DAIFMT_CBS_CFS,
 		.be_hw_params_fixup = byt_rt5640_codec_fixup,
 		.ignore_suspend = 1,
+		.nonatomic = true,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 		.init = byt_rt5640_init,
@@ -738,6 +746,13 @@ static int snd_byt_rt5640_mc_probe(struc
 		if (res_info->acpi_ipc_irq_index == 0) {
 			byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
 		}
+
+		/* change defaults for Baytrail-CR capture */
+		byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
+		byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
+	} else {
+		byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
+				BYT_RT5640_DMIC_EN);
 	}
 
 	/* check quirks before creating card */
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/boards/bytcr_rt5651.c linux-libre-4.9.52-gnu/sound/soc/intel/boards/bytcr_rt5651.c
--- linux-libre-4.9-gnu/sound/soc/intel/boards/bytcr_rt5651.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/boards/bytcr_rt5651.c	2017-09-27 08:40:05.000000000 -0400
@@ -235,7 +235,6 @@ static struct snd_soc_dai_link byt_rt565
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
@@ -249,7 +248,6 @@ static struct snd_soc_dai_link byt_rt565
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 		.platform_name = "sst-mfld-platform",
-		.ignore_suspend = 1,
 		.nonatomic = true,
 		.dynamic = 1,
 		.dpcm_playback = 1,
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/boards/cht_bsw_rt5645.c linux-libre-4.9.52-gnu/sound/soc/intel/boards/cht_bsw_rt5645.c
--- linux-libre-4.9-gnu/sound/soc/intel/boards/cht_bsw_rt5645.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/boards/cht_bsw_rt5645.c	2017-09-27 08:40:05.000000000 -0400
@@ -24,6 +24,9 @@
 #include <linux/acpi.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <asm/cpu_device_id.h>
+#include <asm/platform_sst_audio.h>
+#include <linux/clk.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -44,6 +47,8 @@ struct cht_acpi_card {
 struct cht_mc_private {
 	struct snd_soc_jack jack;
 	struct cht_acpi_card *acpi_card;
+	char codec_name[16];
+	struct clk *mclk;
 };
 
 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
@@ -64,6 +69,7 @@ static int platform_clock_control(struct
 	struct snd_soc_dapm_context *dapm = w->dapm;
 	struct snd_soc_card *card = dapm->card;
 	struct snd_soc_dai *codec_dai;
+	struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 	int ret;
 
 	codec_dai = cht_get_codec_dai(card);
@@ -72,19 +78,30 @@ static int platform_clock_control(struct
 		return -EIO;
 	}
 
-	if (!SND_SOC_DAPM_EVENT_OFF(event))
-		return 0;
+	if (SND_SOC_DAPM_EVENT_ON(event)) {
+		if (ctx->mclk) {
+			ret = clk_prepare_enable(ctx->mclk);
+			if (ret < 0) {
+				dev_err(card->dev,
+					"could not configure MCLK state");
+				return ret;
+			}
+		}
+	} else {
+		/* Set codec sysclk source to its internal clock because codec PLL will
+		 * be off when idle and MCLK will also be off when codec is
+		 * runtime suspended. Codec needs clock for jack detection and button
+		 * press. MCLK is turned off with clock framework or ACPI.
+		 */
+		ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK,
+					48000 * 512, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
+			return ret;
+		}
 
-	/* Set codec sysclk source to its internal clock because codec PLL will
-	 * be off when idle and MCLK will also be off by ACPI when codec is
-	 * runtime suspended. Codec needs clock for jack detection and button
-	 * press.
-	 */
-	ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK,
-			0, SND_SOC_CLOCK_IN);
-	if (ret < 0) {
-		dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
-		return ret;
+		if (ctx->mclk)
+			clk_disable_unprepare(ctx->mclk);
 	}
 
 	return 0;
@@ -96,7 +113,7 @@ static const struct snd_soc_dapm_widget
 	SND_SOC_DAPM_MIC("Int Mic", NULL),
 	SND_SOC_DAPM_SPK("Ext Spk", NULL),
 	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
-			platform_clock_control, SND_SOC_DAPM_POST_PMD),
+			platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 };
 
 static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = {
@@ -224,6 +241,26 @@ static int cht_codec_init(struct snd_soc
 
 	rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack);
 
+	if (ctx->mclk) {
+		/*
+		 * The firmware might enable the clock at
+		 * boot (this information may or may not
+		 * be reflected in the enable clock register).
+		 * To change the rate we must disable the clock
+		 * first to cover these cases. Due to common
+		 * clock framework restrictions that do not allow
+		 * to disable a clock that has not been enabled,
+		 * we need to enable the clock first.
+		 */
+		ret = clk_prepare_enable(ctx->mclk);
+		if (!ret)
+			clk_disable_unprepare(ctx->mclk);
+
+		ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
+
+		if (ret)
+			dev_err(runtime->dev, "unable to set MCLK rate\n");
+	}
 	return ret;
 }
 
@@ -348,38 +385,59 @@ static struct cht_acpi_card snd_soc_card
 
 static char cht_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 
+static bool is_valleyview(void)
+{
+	static const struct x86_cpu_id cpu_ids[] = {
+		{ X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
+		{}
+	};
+
+	if (!x86_match_cpu(cpu_ids))
+		return false;
+	return true;
+}
+
 static int snd_cht_mc_probe(struct platform_device *pdev)
 {
 	int ret_val = 0;
 	int i;
 	struct cht_mc_private *drv;
 	struct snd_soc_card *card = snd_soc_cards[0].soc_card;
-	char codec_name[16];
 	struct sst_acpi_mach *mach;
 	const char *i2c_name = NULL;
 	int dai_index = 0;
+	bool found = false;
 
 	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
 	if (!drv)
 		return -ENOMEM;
 
+	mach = (&pdev->dev)->platform_data;
+
 	for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) {
-		if (acpi_dev_found(snd_soc_cards[i].codec_id)) {
+		if (acpi_dev_found(snd_soc_cards[i].codec_id) &&
+			(!strncmp(snd_soc_cards[i].codec_id, mach->id, 8))) {
 			dev_dbg(&pdev->dev,
 				"found codec %s\n", snd_soc_cards[i].codec_id);
 			card = snd_soc_cards[i].soc_card;
 			drv->acpi_card = &snd_soc_cards[i];
+			found = true;
 			break;
 		}
 	}
+
+	if (!found) {
+		dev_err(&pdev->dev, "No matching HID found in supported list\n");
+		return -ENODEV;
+	}
+
 	card->dev = &pdev->dev;
-	mach = card->dev->platform_data;
-	sprintf(codec_name, "i2c-%s:00", drv->acpi_card->codec_id);
+	sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id);
 
 	/* set correct codec name */
 	for (i = 0; i < ARRAY_SIZE(cht_dailink); i++)
 		if (!strcmp(card->dai_link[i].codec_name, "i2c-10EC5645:00")) {
-			card->dai_link[i].codec_name = kstrdup(codec_name, GFP_KERNEL);
+			card->dai_link[i].codec_name = drv->codec_name;
 			dai_index = i;
 		}
 
@@ -391,6 +449,16 @@ static int snd_cht_mc_probe(struct platf
 		cht_dailink[dai_index].codec_name = cht_rt5640_codec_name;
 	}
 
+	if (is_valleyview()) {
+		drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
+		if (IS_ERR(drv->mclk)) {
+			dev_err(&pdev->dev,
+				"Failed to get MCLK from pmc_plt_clk_3: %ld\n",
+				PTR_ERR(drv->mclk));
+			return PTR_ERR(drv->mclk);
+		}
+	}
+
 	snd_soc_card_set_drvdata(card, drv);
 	ret_val = devm_snd_soc_register_card(&pdev->dev, card);
 	if (ret_val) {
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/Kconfig linux-libre-4.9.52-gnu/sound/soc/intel/Kconfig
--- linux-libre-4.9-gnu/sound/soc/intel/Kconfig	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/Kconfig	2017-09-27 08:40:05.000000000 -0400
@@ -33,11 +33,9 @@ config SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_SST_MATCH if ACPI
 	depends on (X86 || COMPILE_TEST)
 
-# firmware stuff depends DW_DMAC_CORE; since there is no depends-on from
-# the reverse selection, each machine driver needs to select
-# SND_SOC_INTEL_SST_FIRMWARE carefully depending on DW_DMAC_CORE
 config SND_SOC_INTEL_SST_FIRMWARE
 	tristate
+	select DW_DMAC_CORE
 
 config SND_SOC_INTEL_SST_ACPI
 	tristate
@@ -47,16 +45,18 @@ config SND_SOC_INTEL_SST_MATCH
 
 config SND_SOC_INTEL_HASWELL
 	tristate
+	select SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_SST_FIRMWARE
 
 config SND_SOC_INTEL_BAYTRAIL
 	tristate
+	select SND_SOC_INTEL_SST
+	select SND_SOC_INTEL_SST_FIRMWARE
 
 config SND_SOC_INTEL_HASWELL_MACH
 	tristate "ASoC Audio DSP support for Intel Haswell Lynxpoint"
 	depends on X86_INTEL_LPSS && I2C && I2C_DESIGNWARE_PLATFORM
-	depends on DW_DMAC_CORE
-	select SND_SOC_INTEL_SST
+	depends on DMADEVICES
 	select SND_SOC_INTEL_HASWELL
 	select SND_SOC_RT5640
 	help
@@ -99,9 +99,8 @@ config SND_SOC_INTEL_BXT_RT298_MACH
 config SND_SOC_INTEL_BYT_RT5640_MACH
 	tristate "ASoC Audio driver for Intel Baytrail with RT5640 codec"
 	depends on X86_INTEL_LPSS && I2C
-	depends on DW_DMAC_CORE && (SND_SST_IPC_ACPI = n)
-	select SND_SOC_INTEL_SST
-	select SND_SOC_INTEL_SST_FIRMWARE
+	depends on DMADEVICES
+	depends on SND_SST_IPC_ACPI = n
 	select SND_SOC_INTEL_BAYTRAIL
 	select SND_SOC_RT5640
 	help
@@ -112,9 +111,8 @@ config SND_SOC_INTEL_BYT_RT5640_MACH
 config SND_SOC_INTEL_BYT_MAX98090_MACH
 	tristate "ASoC Audio driver for Intel Baytrail with MAX98090 codec"
 	depends on X86_INTEL_LPSS && I2C
-	depends on DW_DMAC_CORE && (SND_SST_IPC_ACPI = n)
-	select SND_SOC_INTEL_SST
-	select SND_SOC_INTEL_SST_FIRMWARE
+	depends on DMADEVICES
+	depends on SND_SST_IPC_ACPI = n
 	select SND_SOC_INTEL_BAYTRAIL
 	select SND_SOC_MAX98090
 	help
@@ -123,9 +121,8 @@ config SND_SOC_INTEL_BYT_MAX98090_MACH
 
 config SND_SOC_INTEL_BDW_RT5677_MACH
 	tristate "ASoC Audio driver for Intel Broadwell with RT5677 codec"
-	depends on X86_INTEL_LPSS && GPIOLIB && I2C && DW_DMAC
-	depends on DW_DMAC_CORE=y
-	select SND_SOC_INTEL_SST
+	depends on X86_INTEL_LPSS && GPIOLIB && I2C
+	depends on DMADEVICES
 	select SND_SOC_INTEL_HASWELL
 	select SND_SOC_RT5677
 	help
@@ -134,10 +131,8 @@ config SND_SOC_INTEL_BDW_RT5677_MACH
 
 config SND_SOC_INTEL_BROADWELL_MACH
 	tristate "ASoC Audio DSP support for Intel Broadwell Wildcatpoint"
-	depends on X86_INTEL_LPSS && I2C && DW_DMAC && \
-		   I2C_DESIGNWARE_PLATFORM
-	depends on DW_DMAC_CORE
-	select SND_SOC_INTEL_SST
+	depends on X86_INTEL_LPSS && I2C && I2C_DESIGNWARE_PLATFORM
+	depends on DMADEVICES
 	select SND_SOC_INTEL_HASWELL
 	select SND_SOC_RT286
 	help
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/skylake/skl-sst.c linux-libre-4.9.52-gnu/sound/soc/intel/skylake/skl-sst.c
--- linux-libre-4.9-gnu/sound/soc/intel/skylake/skl-sst.c	2016-12-11 18:03:24.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/skylake/skl-sst.c	2017-09-27 15:21:19.000000000 -0400
@@ -514,6 +514,9 @@ EXPORT_SYMBOL_GPL(skl_sst_init_fw);
 
 void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx)
 {
+
+	if (ctx->dsp->fw)
+		release_firmware(ctx->dsp->fw);
 	skl_clear_module_table(ctx->dsp);
 	skl_freeup_uuid_list(ctx);
 	skl_ipc_free(&ctx->ipc);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/skylake/skl-sst-utils.c linux-libre-4.9.52-gnu/sound/soc/intel/skylake/skl-sst-utils.c
--- linux-libre-4.9-gnu/sound/soc/intel/skylake/skl-sst-utils.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/skylake/skl-sst-utils.c	2017-09-27 08:40:05.000000000 -0400
@@ -179,7 +179,7 @@ static inline int skl_getid_32(struct uu
 		index = ffz(mask_val);
 		pvt_id = index + word1_mask + word2_mask;
 		if (pvt_id <= (max_inst - 1)) {
-			*val |= 1 << (index + word1_mask);
+			*val |= 1ULL << (index + word1_mask);
 			return pvt_id;
 		}
 	}
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/intel/skylake/skl-topology.c linux-libre-4.9.52-gnu/sound/soc/intel/skylake/skl-topology.c
--- linux-libre-4.9-gnu/sound/soc/intel/skylake/skl-topology.c	2016-12-11 18:03:28.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/intel/skylake/skl-topology.c	2017-09-27 15:21:22.000000000 -0400
@@ -448,7 +448,7 @@ static int skl_tplg_set_module_init_data
 			if (bc->set_params != SKL_PARAM_INIT)
 				continue;
 
-			mconfig->formats_config.caps = (u32 *)&bc->params;
+			mconfig->formats_config.caps = (u32 *)bc->params;
 			mconfig->formats_config.caps_size = bc->size;
 
 			break;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/qcom/lpass-platform.c linux-libre-4.9.52-gnu/sound/soc/qcom/lpass-platform.c
--- linux-libre-4.9-gnu/sound/soc/qcom/lpass-platform.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/qcom/lpass-platform.c	2017-09-27 08:40:05.000000000 -0400
@@ -78,6 +78,9 @@ static int lpass_platform_pcmops_open(st
 	dma_ch = 0;
 	if (v->alloc_dma_channel)
 		dma_ch = v->alloc_dma_channel(drvdata, dir);
+	else
+		dma_ch = 0;
+
 	if (dma_ch < 0)
 		return dma_ch;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/samsung/i2s.c linux-libre-4.9.52-gnu/sound/soc/samsung/i2s.c
--- linux-libre-4.9-gnu/sound/soc/samsung/i2s.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/samsung/i2s.c	2017-09-27 08:40:05.000000000 -0400
@@ -1029,12 +1029,13 @@ static int samsung_i2s_dai_probe(struct
 static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
 {
 	struct i2s_dai *i2s = snd_soc_dai_get_drvdata(dai);
+	unsigned long flags;
 
 	if (!is_secondary(i2s)) {
 		if (i2s->quirks & QUIRK_NEED_RSTCLR) {
-			spin_lock(i2s->lock);
+			spin_lock_irqsave(i2s->lock, flags);
 			writel(0, i2s->addr + I2SCON);
-			spin_unlock(i2s->lock);
+			spin_unlock_irqrestore(i2s->lock, flags);
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/soc-compress.c linux-libre-4.9.52-gnu/sound/soc/soc-compress.c
--- linux-libre-4.9-gnu/sound/soc/soc-compress.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/soc-compress.c	2017-09-27 08:40:05.000000000 -0400
@@ -68,7 +68,8 @@ out:
 static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
-	struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream;
+	struct snd_pcm_substream *fe_substream =
+		 fe->pcm->streams[cstream->direction].substream;
 	struct snd_soc_platform *platform = fe->platform;
 	struct snd_soc_dpcm *dpcm;
 	struct snd_soc_dapm_widget_list *list;
@@ -414,7 +415,8 @@ static int soc_compr_set_params_fe(struc
 					struct snd_compr_params *params)
 {
 	struct snd_soc_pcm_runtime *fe = cstream->private_data;
-	struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream;
+	struct snd_pcm_substream *fe_substream =
+		 fe->pcm->streams[cstream->direction].substream;
 	struct snd_soc_platform *platform = fe->platform;
 	int ret = 0, stream;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/soc-core.c linux-libre-4.9.52-gnu/sound/soc/soc-core.c
--- linux-libre-4.9-gnu/sound/soc/soc-core.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/soc-core.c	2017-09-27 08:40:05.000000000 -0400
@@ -2076,6 +2076,9 @@ static int soc_cleanup_card_resources(st
 	list_for_each_entry(rtd, &card->rtd_list, list)
 		flush_delayed_work(&rtd->delayed_work);
 
+	/* free the ALSA card at first; this syncs with pending operations */
+	snd_card_free(card->snd_card);
+
 	/* remove and free each DAI */
 	soc_remove_dai_links(card);
 	soc_remove_pcm_runtimes(card);
@@ -2090,9 +2093,7 @@ static int soc_cleanup_card_resources(st
 	if (card->remove)
 		card->remove(card);
 
-	snd_card_free(card->snd_card);
 	return 0;
-
 }
 
 /* removes a socdev */
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/soc-pcm.c linux-libre-4.9.52-gnu/sound/soc/soc-pcm.c
--- linux-libre-4.9-gnu/sound/soc/soc-pcm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/soc-pcm.c	2017-09-27 08:40:05.000000000 -0400
@@ -181,6 +181,10 @@ int dpcm_dapm_stream_event(struct snd_so
 		dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n",
 				be->dai_link->name, event, dir);
 
+		if ((event == SND_SOC_DAPM_STREAM_STOP) &&
+		    (be->dpcm[dir].users >= 1))
+			continue;
+
 		snd_soc_dapm_stream_event(be, dir, event);
 	}
 
@@ -2184,9 +2188,11 @@ static int dpcm_fe_dai_do_trigger(struct
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;
 		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;
+		break;
 	}
 
 out:
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/soc/sunxi/sun4i-i2s.c linux-libre-4.9.52-gnu/sound/soc/sunxi/sun4i-i2s.c
--- linux-libre-4.9-gnu/sound/soc/sunxi/sun4i-i2s.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/soc/sunxi/sun4i-i2s.c	2017-09-27 08:40:05.000000000 -0400
@@ -14,9 +14,11 @@
 #include <linux/clk.h>
 #include <linux/dmaengine.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
+#include <linux/reset.h>
 
 #include <sound/dmaengine_pcm.h>
 #include <sound/pcm_params.h>
@@ -92,6 +94,7 @@ struct sun4i_i2s {
 	struct clk	*bus_clk;
 	struct clk	*mod_clk;
 	struct regmap	*regmap;
+	struct reset_control *rst;
 
 	struct snd_dmaengine_dai_dma_data	playback_dma_data;
 };
@@ -585,9 +588,22 @@ static int sun4i_i2s_runtime_suspend(str
 	return 0;
 }
 
+struct sun4i_i2s_quirks {
+	bool has_reset;
+};
+
+static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = {
+	.has_reset	= false,
+};
+
+static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
+	.has_reset	= true,
+};
+
 static int sun4i_i2s_probe(struct platform_device *pdev)
 {
 	struct sun4i_i2s *i2s;
+	const struct sun4i_i2s_quirks *quirks;
 	struct resource *res;
 	void __iomem *regs;
 	int irq, ret;
@@ -608,6 +624,12 @@ static int sun4i_i2s_probe(struct platfo
 		return irq;
 	}
 
+	quirks = of_device_get_match_data(&pdev->dev);
+	if (!quirks) {
+		dev_err(&pdev->dev, "Failed to determine the quirks to use\n");
+		return -ENODEV;
+	}
+
 	i2s->bus_clk = devm_clk_get(&pdev->dev, "apb");
 	if (IS_ERR(i2s->bus_clk)) {
 		dev_err(&pdev->dev, "Can't get our bus clock\n");
@@ -626,7 +648,24 @@ static int sun4i_i2s_probe(struct platfo
 		dev_err(&pdev->dev, "Can't get our mod clock\n");
 		return PTR_ERR(i2s->mod_clk);
 	}
-	
+
+	if (quirks->has_reset) {
+		i2s->rst = devm_reset_control_get(&pdev->dev, NULL);
+		if (IS_ERR(i2s->rst)) {
+			dev_err(&pdev->dev, "Failed to get reset control\n");
+			return PTR_ERR(i2s->rst);
+		}
+	}
+
+	if (!IS_ERR(i2s->rst)) {
+		ret = reset_control_deassert(i2s->rst);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"Failed to deassert the reset control\n");
+			return -EINVAL;
+		}
+	}
+
 	i2s->playback_dma_data.addr = res->start + SUN4I_I2S_FIFO_TX_REG;
 	i2s->playback_dma_data.maxburst = 4;
 
@@ -658,23 +697,37 @@ err_suspend:
 		sun4i_i2s_runtime_suspend(&pdev->dev);
 err_pm_disable:
 	pm_runtime_disable(&pdev->dev);
+	if (!IS_ERR(i2s->rst))
+		reset_control_assert(i2s->rst);
 
 	return ret;
 }
 
 static int sun4i_i2s_remove(struct platform_device *pdev)
 {
+	struct sun4i_i2s *i2s = dev_get_drvdata(&pdev->dev);
+
 	snd_dmaengine_pcm_unregister(&pdev->dev);
 
 	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
 		sun4i_i2s_runtime_suspend(&pdev->dev);
 
+	if (!IS_ERR(i2s->rst))
+		reset_control_assert(i2s->rst);
+
 	return 0;
 }
 
 static const struct of_device_id sun4i_i2s_match[] = {
-	{ .compatible = "allwinner,sun4i-a10-i2s", },
+	{
+		.compatible = "allwinner,sun4i-a10-i2s",
+		.data = &sun4i_a10_i2s_quirks,
+	},
+	{
+		.compatible = "allwinner,sun6i-a31-i2s",
+		.data = &sun6i_a31_i2s_quirks,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, sun4i_i2s_match);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/card.c linux-libre-4.9.52-gnu/sound/usb/card.c
--- linux-libre-4.9-gnu/sound/usb/card.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/card.c	2017-09-27 08:40:05.000000000 -0400
@@ -206,7 +206,6 @@ static int snd_usb_create_stream(struct
 	if (! snd_usb_parse_audio_interface(chip, interface)) {
 		usb_set_interface(dev, interface, 0); /* reset the current interface */
 		usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
-		return -EINVAL;
 	}
 
 	return 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/endpoint.c linux-libre-4.9.52-gnu/sound/usb/endpoint.c
--- linux-libre-4.9-gnu/sound/usb/endpoint.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/endpoint.c	2017-09-27 08:40:05.000000000 -0400
@@ -384,6 +384,9 @@ static void snd_complete_urb(struct urb
 	if (unlikely(atomic_read(&ep->chip->shutdown)))
 		goto exit_clear;
 
+	if (unlikely(!test_bit(EP_FLAG_RUNNING, &ep->flags)))
+		goto exit_clear;
+
 	if (usb_pipeout(ep->pipe)) {
 		retire_outbound_urb(ep, ctx);
 		/* can be stopped during retire callback */
@@ -534,6 +537,11 @@ static int wait_clear_urbs(struct snd_us
 			alive, ep->ep_num);
 	clear_bit(EP_FLAG_STOPPING, &ep->flags);
 
+	ep->data_subs = NULL;
+	ep->sync_slave = NULL;
+	ep->retire_data_urb = NULL;
+	ep->prepare_data_urb = NULL;
+
 	return 0;
 }
 
@@ -898,9 +906,7 @@ int snd_usb_endpoint_set_params(struct s
 /**
  * snd_usb_endpoint_start: start an snd_usb_endpoint
  *
- * @ep:		the endpoint to start
- * @can_sleep:	flag indicating whether the operation is executed in
- * 		non-atomic context
+ * @ep: the endpoint to start
  *
  * A call to this function will increment the use count of the endpoint.
  * In case it is not already running, the URBs for this endpoint will be
@@ -910,7 +916,7 @@ int snd_usb_endpoint_set_params(struct s
  *
  * Returns an error if the URB submission failed, 0 in all other cases.
  */
-int snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep)
+int snd_usb_endpoint_start(struct snd_usb_endpoint *ep)
 {
 	int err;
 	unsigned int i;
@@ -924,8 +930,6 @@ int snd_usb_endpoint_start(struct snd_us
 
 	/* just to be sure */
 	deactivate_urbs(ep, false);
-	if (can_sleep)
-		wait_clear_urbs(ep);
 
 	ep->active_mask = 0;
 	ep->unlink_mask = 0;
@@ -1006,10 +1010,6 @@ void snd_usb_endpoint_stop(struct snd_us
 
 	if (--ep->use_count == 0) {
 		deactivate_urbs(ep, false);
-		ep->data_subs = NULL;
-		ep->sync_slave = NULL;
-		ep->retire_data_urb = NULL;
-		ep->prepare_data_urb = NULL;
 		set_bit(EP_FLAG_STOPPING, &ep->flags);
 	}
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/endpoint.h linux-libre-4.9.52-gnu/sound/usb/endpoint.h
--- linux-libre-4.9-gnu/sound/usb/endpoint.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/endpoint.h	2017-09-27 08:40:05.000000000 -0400
@@ -18,7 +18,7 @@ int snd_usb_endpoint_set_params(struct s
 				struct audioformat *fmt,
 				struct snd_usb_endpoint *sync_ep);
 
-int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep);
+int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/hiface/pcm.c linux-libre-4.9.52-gnu/sound/usb/hiface/pcm.c
--- linux-libre-4.9-gnu/sound/usb/hiface/pcm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/hiface/pcm.c	2017-09-27 08:40:05.000000000 -0400
@@ -445,6 +445,8 @@ static int hiface_pcm_prepare(struct snd
 
 	mutex_lock(&rt->stream_mutex);
 
+	hiface_pcm_stream_stop(rt);
+
 	sub->dma_off = 0;
 	sub->period_off = 0;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/line6/driver.c linux-libre-4.9.52-gnu/sound/usb/line6/driver.c
--- linux-libre-4.9-gnu/sound/usb/line6/driver.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/line6/driver.c	2017-09-27 08:40:05.000000000 -0400
@@ -754,8 +754,9 @@ int line6_probe(struct usb_interface *in
 		goto error;
 	}
 
+	line6_get_interval(line6);
+
 	if (properties->capabilities & LINE6_CAP_CONTROL) {
-		line6_get_interval(line6);
 		ret = line6_init_cap_control(line6);
 		if (ret < 0)
 			goto error;
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/mixer.c linux-libre-4.9.52-gnu/sound/usb/mixer.c
--- linux-libre-4.9-gnu/sound/usb/mixer.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/mixer.c	2017-09-27 08:40:05.000000000 -0400
@@ -542,6 +542,8 @@ int snd_usb_mixer_vol_tlv(struct snd_kco
 
 	if (size < sizeof(scale))
 		return -ENOMEM;
+	if (cval->min_mute)
+		scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE;
 	scale[2] = cval->dBmin;
 	scale[3] = cval->dBmax;
 	if (copy_to_user(_tlv, scale, sizeof(scale)))
@@ -932,9 +934,10 @@ static void volume_control_quirks(struct
 	case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */
 	case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */
 	case USB_ID(0x046d, 0x0991):
+	case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */
 	/* Most audio usb devices lie about volume resolution.
 	 * Most Logitech webcams have res = 384.
-	 * Proboly there is some logitech magic behind this number --fishor
+	 * Probably there is some logitech magic behind this number --fishor
 	 */
 		if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
 			usb_audio_info(chip,
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/mixer.h linux-libre-4.9.52-gnu/sound/usb/mixer.h
--- linux-libre-4.9-gnu/sound/usb/mixer.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/mixer.h	2017-09-27 08:40:05.000000000 -0400
@@ -64,6 +64,7 @@ struct usb_mixer_elem_info {
 	int cached;
 	int cache_val[MAX_CHANNELS];
 	u8 initialized;
+	u8 min_mute;
 	void *private_data;
 };
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/mixer_quirks.c linux-libre-4.9.52-gnu/sound/usb/mixer_quirks.c
--- linux-libre-4.9-gnu/sound/usb/mixer_quirks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/mixer_quirks.c	2017-09-27 08:40:05.000000000 -0400
@@ -1873,6 +1873,12 @@ void snd_usb_mixer_fu_apply_quirk(struct
 		if (unitid == 7 && cval->control == UAC_FU_VOLUME)
 			snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
 		break;
+	/* lowest playback value is muted on C-Media devices */
+	case USB_ID(0x0d8c, 0x000c):
+	case USB_ID(0x0d8c, 0x0014):
+		if (strstr(kctl->id.name, "Playback"))
+			cval->min_mute = 1;
+		break;
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/pcm.c linux-libre-4.9.52-gnu/sound/usb/pcm.c
--- linux-libre-4.9-gnu/sound/usb/pcm.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/pcm.c	2017-09-27 08:40:05.000000000 -0400
@@ -218,7 +218,7 @@ int snd_usb_init_pitch(struct snd_usb_au
 	}
 }
 
-static int start_endpoints(struct snd_usb_substream *subs, bool can_sleep)
+static int start_endpoints(struct snd_usb_substream *subs)
 {
 	int err;
 
@@ -231,7 +231,7 @@ static int start_endpoints(struct snd_us
 		dev_dbg(&subs->dev->dev, "Starting data EP @%p\n", ep);
 
 		ep->data_subs = subs;
-		err = snd_usb_endpoint_start(ep, can_sleep);
+		err = snd_usb_endpoint_start(ep);
 		if (err < 0) {
 			clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags);
 			return err;
@@ -260,7 +260,7 @@ static int start_endpoints(struct snd_us
 		dev_dbg(&subs->dev->dev, "Starting sync EP @%p\n", ep);
 
 		ep->sync_slave = subs->data_endpoint;
-		err = snd_usb_endpoint_start(ep, can_sleep);
+		err = snd_usb_endpoint_start(ep);
 		if (err < 0) {
 			clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags);
 			return err;
@@ -348,6 +348,16 @@ static int set_sync_ep_implicit_fb_quirk
 
 		alts = &iface->altsetting[1];
 		goto add_sync_ep;
+	case USB_ID(0x2466, 0x8003):
+		ep = 0x86;
+		iface = usb_ifnum_to_if(dev, 2);
+
+		if (!iface || iface->num_altsetting == 0)
+			return -EINVAL;
+
+		alts = &iface->altsetting[1];
+		goto add_sync_ep;
+
 	}
 	if (attr == USB_ENDPOINT_SYNC_ASYNC &&
 	    altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
@@ -839,7 +849,7 @@ static int snd_usb_pcm_prepare(struct sn
 	/* for playback, submit the URBs now; otherwise, the first hwptr_done
 	 * updates for all URBs would happen at the same time when starting */
 	if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK)
-		ret = start_endpoints(subs, true);
+		ret = start_endpoints(subs);
 
  unlock:
 	snd_usb_unlock_shutdown(subs->stream->chip);
@@ -1655,7 +1665,7 @@ static int snd_usb_substream_capture_tri
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
-		err = start_endpoints(subs, false);
+		err = start_endpoints(subs);
 		if (err < 0)
 			return err;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/sound/usb/quirks.c linux-libre-4.9.52-gnu/sound/usb/quirks.c
--- linux-libre-4.9-gnu/sound/usb/quirks.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/sound/usb/quirks.c	2017-09-27 08:40:05.000000000 -0400
@@ -1135,12 +1135,14 @@ bool snd_usb_get_sample_rate_quirk(struc
 	case USB_ID(0x045E, 0x076F): /* MS Lifecam HD-6000 */
 	case USB_ID(0x045E, 0x0772): /* MS Lifecam Studio */
 	case USB_ID(0x045E, 0x0779): /* MS Lifecam HD-3000 */
+	case USB_ID(0x047F, 0x02F7): /* Plantronics BT-600 */
 	case USB_ID(0x047F, 0x0415): /* Plantronics BT-300 */
 	case USB_ID(0x047F, 0xAA05): /* Plantronics DA45 */
 	case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
 	case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
 	case USB_ID(0x05A3, 0x9420): /* ELP HD USB Camera */
 	case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
+	case USB_ID(0x1395, 0x740a): /* Sennheiser DECT */
 	case USB_ID(0x1901, 0x0191): /* GE B850V3 CP2114 audio interface */
 	case USB_ID(0x1de7, 0x0013): /* Phoenix Audio MT202exe */
 	case USB_ID(0x1de7, 0x0014): /* Phoenix Audio TMX320 */
@@ -1165,6 +1167,18 @@ static bool is_marantz_denon_dac(unsigne
 	return false;
 }
 
+/* TEAC UD-501/UD-503/NT-503 USB DACs need a vendor cmd to switch
+ * between PCM/DOP and native DSD mode
+ */
+static bool is_teac_50X_dac(unsigned int id)
+{
+	switch (id) {
+	case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-503/NT-503 */
+		return true;
+	}
+	return false;
+}
+
 int snd_usb_select_mode_quirk(struct snd_usb_substream *subs,
 			      struct audioformat *fmt)
 {
@@ -1192,6 +1206,26 @@ int snd_usb_select_mode_quirk(struct snd
 			break;
 		}
 		mdelay(20);
+	} else if (is_teac_50X_dac(subs->stream->chip->usb_id)) {
+		/* Vendor mode switch cmd is required. */
+		switch (fmt->altsetting) {
+		case 3: /* DSD mode (DSD_U32) requested */
+			err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
+					      USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
+					      1, 1, NULL, 0);
+			if (err < 0)
+				return err;
+			break;
+
+		case 2: /* PCM or DOP mode (S32) requested */
+		case 1: /* PCM mode (S16) requested */
+			err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0,
+					      USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE,
+					      0, 1, NULL, 0);
+			if (err < 0)
+				return err;
+			break;
+		}
 	}
 	return 0;
 }
@@ -1275,10 +1309,13 @@ void snd_usb_ctl_msg_quirk(struct usb_de
 	    && (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
 		mdelay(20);
 
-	/* Zoom R16/24 needs a tiny delay here, otherwise requests like
-	 * get/set frequency return as failed despite actually succeeding.
+	/* Zoom R16/24, Logitech H650e, Jabra 550a needs a tiny delay here,
+	 * otherwise requests like get/set frequency return as failed despite
+	 * actually succeeding.
 	 */
-	if (chip->usb_id == USB_ID(0x1686, 0x00dd) &&
+	if ((chip->usb_id == USB_ID(0x1686, 0x00dd) ||
+	     chip->usb_id == USB_ID(0x046d, 0x0a46) ||
+	     chip->usb_id == USB_ID(0x0b0e, 0x0349)) &&
 	    (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
 		mdelay(1);
 }
@@ -1337,5 +1374,11 @@ u64 snd_usb_interface_dsd_format_quirks(
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 	}
 
+	/* TEAC devices with USB DAC functionality */
+	if (is_teac_50X_dac(chip->usb_id)) {
+		if (fp->altsetting == 3)
+			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
+	}
+
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/arch/x86/lib/memcpy_64.S linux-libre-4.9.52-gnu/tools/arch/x86/lib/memcpy_64.S
--- linux-libre-4.9-gnu/tools/arch/x86/lib/memcpy_64.S	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/arch/x86/lib/memcpy_64.S	2017-09-27 08:40:05.000000000 -0400
@@ -286,7 +286,7 @@ ENDPROC(memcpy_mcsafe_unrolled)
 	_ASM_EXTABLE_FAULT(.L_copy_leading_bytes, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w0, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w1, .L_memcpy_mcsafe_fail)
-	_ASM_EXTABLE_FAULT(.L_cache_w3, .L_memcpy_mcsafe_fail)
+	_ASM_EXTABLE_FAULT(.L_cache_w2, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w3, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w4, .L_memcpy_mcsafe_fail)
 	_ASM_EXTABLE_FAULT(.L_cache_w5, .L_memcpy_mcsafe_fail)
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/include/linux/compiler.h linux-libre-4.9.52-gnu/tools/include/linux/compiler.h
--- linux-libre-4.9-gnu/tools/include/linux/compiler.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/include/linux/compiler.h	2017-09-27 08:40:05.000000000 -0400
@@ -126,4 +126,13 @@ static __always_inline void __write_once
 #define WRITE_ONCE(x, val) \
 	({ union { typeof(x) __val; char __c[1]; } __u = { .__val = (val) }; __write_once_size(&(x), __u.__c, sizeof(x)); __u.__val; })
 
+
+#ifndef __fallthrough
+# if defined(__GNUC__) && __GNUC__ >= 7
+#  define __fallthrough __attribute__ ((fallthrough))
+# else
+#  define __fallthrough
+# endif
+#endif
+
 #endif /* _TOOLS_LINUX_COMPILER_H */
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/include/linux/log2.h linux-libre-4.9.52-gnu/tools/include/linux/log2.h
--- linux-libre-4.9-gnu/tools/include/linux/log2.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/include/linux/log2.h	2017-09-27 08:40:05.000000000 -0400
@@ -13,12 +13,6 @@
 #define _TOOLS_LINUX_LOG2_H
 
 /*
- * deal with unrepresentable constant logarithms
- */
-extern __attribute__((const, noreturn))
-int ____ilog2_NaN(void);
-
-/*
  * non-constant log of base 2 calculators
  * - the arch may override these in asm/bitops.h if they can be implemented
  *   more efficiently than using fls() and fls64()
@@ -78,7 +72,7 @@ unsigned long __rounddown_pow_of_two(uns
 #define ilog2(n)				\
 (						\
 	__builtin_constant_p(n) ? (		\
-		(n) < 1 ? ____ilog2_NaN() :	\
+		(n) < 2 ? 0 :			\
 		(n) & (1ULL << 63) ? 63 :	\
 		(n) & (1ULL << 62) ? 62 :	\
 		(n) & (1ULL << 61) ? 61 :	\
@@ -141,10 +135,7 @@ unsigned long __rounddown_pow_of_two(uns
 		(n) & (1ULL <<  4) ?  4 :	\
 		(n) & (1ULL <<  3) ?  3 :	\
 		(n) & (1ULL <<  2) ?  2 :	\
-		(n) & (1ULL <<  1) ?  1 :	\
-		(n) & (1ULL <<  0) ?  0 :	\
-		____ilog2_NaN()			\
-				   ) :		\
+		1 ) :				\
 	(sizeof(n) <= 4) ?			\
 	__ilog2_u32(n) :			\
 	__ilog2_u64(n)				\
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/lib/lockdep/uinclude/linux/lockdep.h linux-libre-4.9.52-gnu/tools/lib/lockdep/uinclude/linux/lockdep.h
--- linux-libre-4.9-gnu/tools/lib/lockdep/uinclude/linux/lockdep.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/lib/lockdep/uinclude/linux/lockdep.h	2017-09-27 08:40:05.000000000 -0400
@@ -8,7 +8,7 @@
 #include <linux/utsname.h>
 #include <linux/compiler.h>
 
-#define MAX_LOCK_DEPTH 2000UL
+#define MAX_LOCK_DEPTH 63UL
 
 #define asmlinkage
 #define __visible
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/lib/traceevent/plugin_sched_switch.c linux-libre-4.9.52-gnu/tools/lib/traceevent/plugin_sched_switch.c
--- linux-libre-4.9-gnu/tools/lib/traceevent/plugin_sched_switch.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/lib/traceevent/plugin_sched_switch.c	2017-09-27 08:40:05.000000000 -0400
@@ -111,7 +111,7 @@ static int sched_switch_handler(struct t
 	trace_seq_printf(s, "%lld ", val);
 
 	if (pevent_get_field_val(s, event, "prev_prio", record, &val, 0) == 0)
-		trace_seq_printf(s, "[%lld] ", val);
+		trace_seq_printf(s, "[%d] ", (int) val);
 
 	if (pevent_get_field_val(s,  event, "prev_state", record, &val, 0) == 0)
 		write_state(s, val);
@@ -129,7 +129,7 @@ static int sched_switch_handler(struct t
 	trace_seq_printf(s, "%lld", val);
 
 	if (pevent_get_field_val(s, event, "next_prio", record, &val, 0) == 0)
-		trace_seq_printf(s, " [%lld]", val);
+		trace_seq_printf(s, " [%d]", (int) val);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/objtool/arch/x86/decode.c linux-libre-4.9.52-gnu/tools/objtool/arch/x86/decode.c
--- linux-libre-4.9-gnu/tools/objtool/arch/x86/decode.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/objtool/arch/x86/decode.c	2017-09-27 08:40:05.000000000 -0400
@@ -150,9 +150,9 @@ int arch_decode_instruction(struct elf *
 		*type = INSN_RETURN;
 		break;
 
-	case 0xc5: /* iret */
 	case 0xca: /* retf */
 	case 0xcb: /* retf */
+	case 0xcf: /* iret */
 		*type = INSN_CONTEXT_SWITCH;
 		break;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/objtool/builtin-check.c linux-libre-4.9.52-gnu/tools/objtool/builtin-check.c
--- linux-libre-4.9-gnu/tools/objtool/builtin-check.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/objtool/builtin-check.c	2017-09-27 08:40:05.000000000 -0400
@@ -757,11 +757,20 @@ static struct rela *find_switch_table(st
 		     insn->jump_dest->offset > orig_insn->offset))
 		    break;
 
+		/* look for a relocation which references .rodata */
 		text_rela = find_rela_by_dest_range(insn->sec, insn->offset,
 						    insn->len);
-		if (text_rela && text_rela->sym == file->rodata->sym)
-			return find_rela_by_dest(file->rodata,
-						 text_rela->addend);
+		if (!text_rela || text_rela->sym != file->rodata->sym)
+			continue;
+
+		/*
+		 * Make sure the .rodata address isn't associated with a
+		 * symbol.  gcc jump tables are anonymous data.
+		 */
+		if (find_symbol_containing(file->rodata, text_rela->addend))
+			continue;
+
+		return find_rela_by_dest(file->rodata, text_rela->addend);
 	}
 
 	return NULL;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/objtool/elf.c linux-libre-4.9.52-gnu/tools/objtool/elf.c
--- linux-libre-4.9-gnu/tools/objtool/elf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/objtool/elf.c	2017-09-27 08:40:05.000000000 -0400
@@ -85,6 +85,18 @@ struct symbol *find_symbol_by_offset(str
 	return NULL;
 }
 
+struct symbol *find_symbol_containing(struct section *sec, unsigned long offset)
+{
+	struct symbol *sym;
+
+	list_for_each_entry(sym, &sec->symbol_list, list)
+		if (sym->type != STT_SECTION &&
+		    offset >= sym->offset && offset < sym->offset + sym->len)
+			return sym;
+
+	return NULL;
+}
+
 struct rela *find_rela_by_dest_range(struct section *sec, unsigned long offset,
 				     unsigned int len)
 {
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/objtool/elf.h linux-libre-4.9.52-gnu/tools/objtool/elf.h
--- linux-libre-4.9-gnu/tools/objtool/elf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/objtool/elf.h	2017-09-27 08:40:05.000000000 -0400
@@ -79,6 +79,7 @@ struct elf {
 struct elf *elf_open(const char *name);
 struct section *find_section_by_name(struct elf *elf, const char *name);
 struct symbol *find_symbol_by_offset(struct section *sec, unsigned long offset);
+struct symbol *find_symbol_containing(struct section *sec, unsigned long offset);
 struct rela *find_rela_by_dest(struct section *sec, unsigned long offset);
 struct rela *find_rela_by_dest_range(struct section *sec, unsigned long offset,
 				     unsigned int len);
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/bench/numa.c linux-libre-4.9.52-gnu/tools/perf/bench/numa.c
--- linux-libre-4.9-gnu/tools/perf/bench/numa.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/bench/numa.c	2017-09-27 08:40:05.000000000 -0400
@@ -1573,13 +1573,13 @@ static int __bench_numa(const char *name
 		"GB/sec,", "total-speed",	"GB/sec total speed");
 
 	if (g->p.show_details >= 2) {
-		char tname[32];
+		char tname[14 + 2 * 10 + 1];
 		struct thread_data *td;
 		for (p = 0; p < g->p.nr_proc; p++) {
 			for (t = 0; t < g->p.nr_threads; t++) {
-				memset(tname, 0, 32);
+				memset(tname, 0, sizeof(tname));
 				td = g->threads + p*g->p.nr_threads + t;
-				snprintf(tname, 32, "process%d:thread%d", p, t);
+				snprintf(tname, sizeof(tname), "process%d:thread%d", p, t);
 				print_res(tname, td->speed_gbs,
 					"GB/sec",	"thread-speed", "GB/sec/thread speed");
 				print_res(tname, td->system_time_ns / NSEC_PER_SEC,
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/builtin-diff.c linux-libre-4.9.52-gnu/tools/perf/builtin-diff.c
--- linux-libre-4.9-gnu/tools/perf/builtin-diff.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/builtin-diff.c	2017-09-27 08:40:05.000000000 -0400
@@ -1199,7 +1199,7 @@ static int ui_init(void)
 		BUG_ON(1);
 	}
 
-	perf_hpp__register_sort_field(fmt);
+	perf_hpp__prepend_sort_field(fmt);
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/builtin-mem.c linux-libre-4.9.52-gnu/tools/perf/builtin-mem.c
--- linux-libre-4.9-gnu/tools/perf/builtin-mem.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/builtin-mem.c	2017-09-27 08:40:05.000000000 -0400
@@ -70,8 +70,8 @@ static int __cmd_record(int argc, const
 	OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
 	OPT_INCR('v', "verbose", &verbose,
 		 "be more verbose (show counter open errors, etc)"),
-	OPT_BOOLEAN('U', "--all-user", &all_user, "collect only user level data"),
-	OPT_BOOLEAN('K', "--all-kernel", &all_kernel, "collect only kernel level data"),
+	OPT_BOOLEAN('U', "all-user", &all_user, "collect only user level data"),
+	OPT_BOOLEAN('K', "all-kernel", &all_kernel, "collect only kernel level data"),
 	OPT_END()
 	};
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/builtin-top.c linux-libre-4.9.52-gnu/tools/perf/builtin-top.c
--- linux-libre-4.9-gnu/tools/perf/builtin-top.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/builtin-top.c	2017-09-27 08:40:05.000000000 -0400
@@ -643,7 +643,7 @@ repeat:
 		case -1:
 			if (errno == EINTR)
 				continue;
-			/* Fall trhu */
+			__fallthrough;
 		default:
 			c = getc(stdin);
 			tcsetattr(0, TCSAFLUSH, &save);
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/builtin-trace.c linux-libre-4.9.52-gnu/tools/perf/builtin-trace.c
--- linux-libre-4.9-gnu/tools/perf/builtin-trace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/builtin-trace.c	2017-09-27 08:40:05.000000000 -0400
@@ -1452,7 +1452,7 @@ static int trace__printf_interrupted_ent
 
 	duration = sample->time - ttrace->entry_time;
 
-	printed  = trace__fprintf_entry_head(trace, trace->current, duration, sample->time, trace->output);
+	printed  = trace__fprintf_entry_head(trace, trace->current, duration, ttrace->entry_time, trace->output);
 	printed += fprintf(trace->output, "%-70s) ...\n", ttrace->entry_str);
 	ttrace->entry_pending = false;
 
@@ -1499,7 +1499,7 @@ static int trace__sys_enter(struct trace
 
 	if (sc->is_exit) {
 		if (!(trace->duration_filter || trace->summary_only || trace->min_stack)) {
-			trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
+			trace__fprintf_entry_head(trace, thread, 1, ttrace->entry_time, trace->output);
 			fprintf(trace->output, "%-70s)\n", ttrace->entry_str);
 		}
 	} else {
@@ -1592,7 +1592,7 @@ static int trace__sys_exit(struct trace
 	if (trace->summary_only)
 		goto out;
 
-	trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
+	trace__fprintf_entry_head(trace, thread, duration, ttrace->entry_time, trace->output);
 
 	if (ttrace->entry_pending) {
 		fprintf(trace->output, "%-70s", ttrace->entry_str);
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/Makefile.config linux-libre-4.9.52-gnu/tools/perf/Makefile.config
--- linux-libre-4.9-gnu/tools/perf/Makefile.config	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/Makefile.config	2017-09-27 08:40:05.000000000 -0400
@@ -366,7 +366,7 @@ ifndef NO_SDT
 endif
 
 ifdef PERF_HAVE_JITDUMP
-  ifndef NO_DWARF
+  ifndef NO_LIBELF
     $(call detected,CONFIG_JITDUMP)
     CFLAGS += -DHAVE_JITDUMP
   endif
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/Makefile.perf linux-libre-4.9.52-gnu/tools/perf/Makefile.perf
--- linux-libre-4.9-gnu/tools/perf/Makefile.perf	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/Makefile.perf	2017-09-27 08:40:05.000000000 -0400
@@ -729,9 +729,9 @@ install-tests: all install-gtk
 		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'; \
 		$(INSTALL) tests/attr/* '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
 
-install-bin: install-tools install-tests
+install-bin: install-tools install-tests install-traceevent-plugins
 
-install: install-bin try-install-man install-traceevent-plugins
+install: install-bin try-install-man
 
 install-python_ext:
 	$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/tests/parse-events.c linux-libre-4.9.52-gnu/tools/perf/tests/parse-events.c
--- linux-libre-4.9-gnu/tools/perf/tests/parse-events.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/tests/parse-events.c	2017-09-27 08:40:05.000000000 -0400
@@ -1779,15 +1779,14 @@ static int test_pmu_events(void)
 	}
 
 	while (!ret && (ent = readdir(dir))) {
-#define MAX_NAME 100
 		struct evlist_test e;
-		char name[MAX_NAME];
+		char name[2 * NAME_MAX + 1 + 12 + 3];
 
 		/* Names containing . are special and cannot be used directly */
 		if (strchr(ent->d_name, '.'))
 			continue;
 
-		snprintf(name, MAX_NAME, "cpu/event=%s/u", ent->d_name);
+		snprintf(name, sizeof(name), "cpu/event=%s/u", ent->d_name);
 
 		e.name  = name;
 		e.check = test__checkevent_pmu_events;
@@ -1795,11 +1794,10 @@ static int test_pmu_events(void)
 		ret = test_event(&e);
 		if (ret)
 			break;
-		snprintf(name, MAX_NAME, "%s:u,cpu/event=%s/u", ent->d_name, ent->d_name);
+		snprintf(name, sizeof(name), "%s:u,cpu/event=%s/u", ent->d_name, ent->d_name);
 		e.name  = name;
 		e.check = test__checkevent_pmu_events_mix;
 		ret = test_event(&e);
-#undef MAX_NAME
 	}
 
 	closedir(dir);
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/trace/beauty/mmap.c linux-libre-4.9.52-gnu/tools/perf/trace/beauty/mmap.c
--- linux-libre-4.9-gnu/tools/perf/trace/beauty/mmap.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/trace/beauty/mmap.c	2017-09-27 08:40:05.000000000 -0400
@@ -42,7 +42,9 @@ static size_t syscall_arg__scnprintf_mma
 
 	P_MMAP_FLAG(SHARED);
 	P_MMAP_FLAG(PRIVATE);
+#ifdef MAP_32BIT
 	P_MMAP_FLAG(32BIT);
+#endif
 	P_MMAP_FLAG(ANONYMOUS);
 	P_MMAP_FLAG(DENYWRITE);
 	P_MMAP_FLAG(EXECUTABLE);
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/ui/browser.c linux-libre-4.9.52-gnu/tools/perf/ui/browser.c
--- linux-libre-4.9-gnu/tools/perf/ui/browser.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/ui/browser.c	2017-09-27 08:40:05.000000000 -0400
@@ -702,7 +702,7 @@ static void __ui_browser__line_arrow_dow
 		ui_browser__gotorc(browser, row, column + 1);
 		SLsmg_draw_hline(2);
 
-		if (row++ == 0)
+		if (++row == 0)
 			goto out;
 	} else
 		row = 0;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/ui/hist.c linux-libre-4.9.52-gnu/tools/perf/ui/hist.c
--- linux-libre-4.9-gnu/tools/perf/ui/hist.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/ui/hist.c	2017-09-27 08:40:05.000000000 -0400
@@ -521,6 +521,12 @@ void perf_hpp_list__register_sort_field(
 	list_add_tail(&format->sort_list, &list->sorts);
 }
 
+void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
+				       struct perf_hpp_fmt *format)
+{
+	list_add(&format->sort_list, &list->sorts);
+}
+
 void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
 {
 	list_del(&format->list);
@@ -560,6 +566,10 @@ void perf_hpp__setup_output_field(struct
 	perf_hpp_list__for_each_sort_list(list, fmt) {
 		struct perf_hpp_fmt *pos;
 
+		/* skip sort-only fields ("sort_compute" in perf diff) */
+		if (!fmt->entry && !fmt->color)
+			continue;
+
 		perf_hpp_list__for_each_format(list, pos) {
 			if (fmt_equal(fmt, pos))
 				goto next;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/annotate.c linux-libre-4.9.52-gnu/tools/perf/util/annotate.c
--- linux-libre-4.9-gnu/tools/perf/util/annotate.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/annotate.c	2017-09-27 08:40:05.000000000 -0400
@@ -593,7 +593,8 @@ static int __symbol__inc_addr_samples(st
 
 	pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
 
-	if (addr < sym->start || addr >= sym->end) {
+	if ((addr < sym->start || addr >= sym->end) &&
+	    (addr != sym->end || sym->start != sym->end)) {
 		pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
 		       __func__, __LINE__, sym->name, sym->start, addr, sym->end);
 		return -ERANGE;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/auxtrace.c linux-libre-4.9.52-gnu/tools/perf/util/auxtrace.c
--- linux-libre-4.9-gnu/tools/perf/util/auxtrace.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/auxtrace.c	2017-09-27 08:40:05.000000000 -0400
@@ -1826,7 +1826,7 @@ static int addr_filter__resolve_kernel_s
 		filt->addr = start;
 		if (filt->range && !filt->size && !filt->sym_to) {
 			filt->size = size;
-			no_size = !!size;
+			no_size = !size;
 		}
 	}
 
@@ -1840,7 +1840,7 @@ static int addr_filter__resolve_kernel_s
 		if (err)
 			return err;
 		filt->size = start + size - filt->addr;
-		no_size = !!size;
+		no_size = !size;
 	}
 
 	/* The very last symbol in kallsyms does not imply a particular size */
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/Build linux-libre-4.9.52-gnu/tools/perf/util/Build
--- linux-libre-4.9-gnu/tools/perf/util/Build	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/Build	2017-09-27 08:40:05.000000000 -0400
@@ -120,7 +120,7 @@ libperf-y += demangle-rust.o
 ifdef CONFIG_JITDUMP
 libperf-$(CONFIG_LIBELF) += jitdump.o
 libperf-$(CONFIG_LIBELF) += genelf.o
-libperf-$(CONFIG_LIBELF) += genelf_debug.o
+libperf-$(CONFIG_DWARF) += genelf_debug.o
 endif
 
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/callchain.c linux-libre-4.9.52-gnu/tools/perf/util/callchain.c
--- linux-libre-4.9-gnu/tools/perf/util/callchain.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/callchain.c	2017-09-27 08:40:05.000000000 -0400
@@ -193,7 +193,6 @@ int perf_callchain_config(const char *va
 
 	if (!strcmp(var, "record-mode"))
 		return parse_callchain_record_opt(value, &callchain_param);
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
 	if (!strcmp(var, "dump-size")) {
 		unsigned long size = 0;
 		int ret;
@@ -203,7 +202,6 @@ int perf_callchain_config(const char *va
 
 		return ret;
 	}
-#endif
 	if (!strcmp(var, "print-type"))
 		return parse_callchain_mode(value);
 	if (!strcmp(var, "order"))
@@ -439,7 +437,7 @@ fill_node(struct callchain_node *node, s
 		}
 		call->ip = cursor_node->ip;
 		call->ms.sym = cursor_node->sym;
-		call->ms.map = cursor_node->map;
+		call->ms.map = map__get(cursor_node->map);
 		list_add_tail(&call->list, &node->val);
 
 		callchain_cursor_advance(cursor);
@@ -464,6 +462,7 @@ add_child(struct callchain_node *parent,
 
 		list_for_each_entry_safe(call, tmp, &new->val, list) {
 			list_del(&call->list);
+			map__zput(call->ms.map);
 			free(call);
 		}
 		free(new);
@@ -732,6 +731,7 @@ merge_chain_branch(struct callchain_curs
 		callchain_cursor_append(cursor, list->ip,
 					list->ms.map, list->ms.sym);
 		list_del(&list->list);
+		map__zput(list->ms.map);
 		free(list);
 	}
 
@@ -780,7 +780,8 @@ int callchain_cursor_append(struct callc
 	}
 
 	node->ip = ip;
-	node->map = map;
+	map__zput(node->map);
+	node->map = map__get(map);
 	node->sym = sym;
 
 	cursor->nr++;
@@ -947,11 +948,13 @@ static void free_callchain_node(struct c
 
 	list_for_each_entry_safe(list, tmp, &node->parent_val, list) {
 		list_del(&list->list);
+		map__zput(list->ms.map);
 		free(list);
 	}
 
 	list_for_each_entry_safe(list, tmp, &node->val, list) {
 		list_del(&list->list);
+		map__zput(list->ms.map);
 		free(list);
 	}
 
@@ -1015,6 +1018,7 @@ int callchain_node__make_parent_list(str
 				goto out;
 			*new = *chain;
 			new->has_children = false;
+			map__get(new->ms.map);
 			list_add_tail(&new->list, &head);
 		}
 		parent = parent->parent;
@@ -1035,6 +1039,7 @@ int callchain_node__make_parent_list(str
 out:
 	list_for_each_entry_safe(chain, new, &head, list) {
 		list_del(&chain->list);
+		map__zput(chain->ms.map);
 		free(chain);
 	}
 	return -ENOMEM;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/callchain.h linux-libre-4.9.52-gnu/tools/perf/util/callchain.h
--- linux-libre-4.9-gnu/tools/perf/util/callchain.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/callchain.h	2017-09-27 08:40:05.000000000 -0400
@@ -5,17 +5,14 @@
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include "event.h"
+#include "map.h"
 #include "symbol.h"
 
 #define HELP_PAD "\t\t\t\t"
 
 #define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace):\n\n"
 
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
 # define RECORD_MODE_HELP  HELP_PAD "record_mode:\tcall graph recording mode (fp|dwarf|lbr)\n"
-#else
-# define RECORD_MODE_HELP  HELP_PAD "record_mode:\tcall graph recording mode (fp|lbr)\n"
-#endif
 
 #define RECORD_SIZE_HELP						\
 	HELP_PAD "record_size:\tif record_mode is 'dwarf', max size of stack recording (<bytes>)\n" \
@@ -178,8 +175,13 @@ int callchain_merge(struct callchain_cur
  */
 static inline void callchain_cursor_reset(struct callchain_cursor *cursor)
 {
+	struct callchain_cursor_node *node;
+
 	cursor->nr = 0;
 	cursor->last = &cursor->first;
+
+	for (node = cursor->first; node != NULL; node = node->next)
+		map__zput(node->map);
 }
 
 int callchain_cursor_append(struct callchain_cursor *cursor, u64 ip,
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/genelf.c linux-libre-4.9.52-gnu/tools/perf/util/genelf.c
--- linux-libre-4.9-gnu/tools/perf/util/genelf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/genelf.c	2017-09-27 08:40:05.000000000 -0400
@@ -19,7 +19,9 @@
 #include <limits.h>
 #include <fcntl.h>
 #include <err.h>
+#ifdef HAVE_DWARF_SUPPORT
 #include <dwarf.h>
+#endif
 
 #include "perf.h"
 #include "genelf.h"
@@ -157,7 +159,7 @@ gen_build_id(struct buildid_note *note,
 int
 jit_write_elf(int fd, uint64_t load_addr, const char *sym,
 	      const void *code, int csize,
-	      void *debug, int nr_debug_entries)
+	      void *debug __maybe_unused, int nr_debug_entries __maybe_unused)
 {
 	Elf *e;
 	Elf_Data *d;
@@ -386,11 +388,14 @@ jit_write_elf(int fd, uint64_t load_addr
 	shdr->sh_size = sizeof(bnote);
 	shdr->sh_entsize = 0;
 
+#ifdef HAVE_DWARF_SUPPORT
 	if (debug && nr_debug_entries) {
 		retval = jit_add_debug_info(e, load_addr, debug, nr_debug_entries);
 		if (retval)
 			goto error;
-	} else {
+	} else
+#endif
+	{
 		if (elf_update(e, ELF_C_WRITE) < 0) {
 			warnx("elf_update 4 failed");
 			goto error;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/genelf.h linux-libre-4.9.52-gnu/tools/perf/util/genelf.h
--- linux-libre-4.9-gnu/tools/perf/util/genelf.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/genelf.h	2017-09-27 08:40:05.000000000 -0400
@@ -4,8 +4,10 @@
 /* genelf.c */
 int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
 		  const void *code, int csize, void *debug, int nr_debug_entries);
+#ifdef HAVE_DWARF_SUPPORT
 /* genelf_debug.c */
 int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries);
+#endif
 
 #if   defined(__arm__)
 #define GEN_ELF_ARCH	EM_ARM
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/header.c linux-libre-4.9.52-gnu/tools/perf/util/header.c
--- linux-libre-4.9-gnu/tools/perf/util/header.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/header.c	2017-09-27 08:40:05.000000000 -0400
@@ -3184,6 +3184,7 @@ int perf_event__process_event_update(str
 	case PERF_EVENT_UPDATE__SCALE:
 		ev_scale = (struct event_update_event_scale *) ev->data;
 		evsel->scale = ev_scale->scale;
+		break;
 	case PERF_EVENT_UPDATE__CPUS:
 		ev_cpus = (struct event_update_event_cpus *) ev->data;
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/hist.c linux-libre-4.9.52-gnu/tools/perf/util/hist.c
--- linux-libre-4.9-gnu/tools/perf/util/hist.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/hist.c	2017-09-27 08:40:05.000000000 -0400
@@ -1,6 +1,7 @@
 #include "util.h"
 #include "build-id.h"
 #include "hist.h"
+#include "map.h"
 #include "session.h"
 #include "sort.h"
 #include "evlist.h"
@@ -1019,6 +1020,10 @@ int hist_entry_iter__add(struct hist_ent
 			 int max_stack_depth, void *arg)
 {
 	int err, err2;
+	struct map *alm = NULL;
+
+	if (al && al->map)
+		alm = map__get(al->map);
 
 	err = sample__resolve_callchain(iter->sample, &callchain_cursor, &iter->parent,
 					iter->evsel, al, max_stack_depth);
@@ -1058,6 +1063,8 @@ out:
 	if (!err)
 		err = err2;
 
+	map__put(alm);
+
 	return err;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/hist.h linux-libre-4.9.52-gnu/tools/perf/util/hist.h
--- linux-libre-4.9-gnu/tools/perf/util/hist.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/hist.h	2017-09-27 08:40:05.000000000 -0400
@@ -282,6 +282,8 @@ void perf_hpp_list__column_register(stru
 				    struct perf_hpp_fmt *format);
 void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
 					struct perf_hpp_fmt *format);
+void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
+				       struct perf_hpp_fmt *format);
 
 static inline void perf_hpp__column_register(struct perf_hpp_fmt *format)
 {
@@ -293,6 +295,11 @@ static inline void perf_hpp__register_so
 	perf_hpp_list__register_sort_field(&perf_hpp_list, format);
 }
 
+static inline void perf_hpp__prepend_sort_field(struct perf_hpp_fmt *format)
+{
+	perf_hpp_list__prepend_sort_field(&perf_hpp_list, format);
+}
+
 #define perf_hpp_list__for_each_format(_list, format) \
 	list_for_each_entry(format, &(_list)->fields, list)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c linux-libre-4.9.52-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
--- linux-libre-4.9-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c	2017-09-27 08:40:05.000000000 -0400
@@ -22,6 +22,7 @@
 #include <errno.h>
 #include <stdint.h>
 #include <inttypes.h>
+#include <linux/compiler.h>
 
 #include "../cache.h"
 #include "../util.h"
@@ -63,6 +64,25 @@ enum intel_pt_pkt_state {
 	INTEL_PT_STATE_FUP_NO_TIP,
 };
 
+static inline bool intel_pt_sample_time(enum intel_pt_pkt_state pkt_state)
+{
+	switch (pkt_state) {
+	case INTEL_PT_STATE_NO_PSB:
+	case INTEL_PT_STATE_NO_IP:
+	case INTEL_PT_STATE_ERR_RESYNC:
+	case INTEL_PT_STATE_IN_SYNC:
+	case INTEL_PT_STATE_TNT:
+		return true;
+	case INTEL_PT_STATE_TIP:
+	case INTEL_PT_STATE_TIP_PGD:
+	case INTEL_PT_STATE_FUP:
+	case INTEL_PT_STATE_FUP_NO_TIP:
+		return false;
+	default:
+		return true;
+	};
+}
+
 #ifdef INTEL_PT_STRICT
 #define INTEL_PT_STATE_ERR1	INTEL_PT_STATE_NO_PSB
 #define INTEL_PT_STATE_ERR2	INTEL_PT_STATE_NO_PSB
@@ -91,6 +111,7 @@ struct intel_pt_decoder {
 	bool have_tma;
 	bool have_cyc;
 	bool fixup_last_mtc;
+	bool have_last_ip;
 	uint64_t pos;
 	uint64_t last_ip;
 	uint64_t ip;
@@ -98,6 +119,7 @@ struct intel_pt_decoder {
 	uint64_t timestamp;
 	uint64_t tsc_timestamp;
 	uint64_t ref_timestamp;
+	uint64_t sample_timestamp;
 	uint64_t ret_addr;
 	uint64_t ctc_timestamp;
 	uint64_t ctc_delta;
@@ -138,6 +160,7 @@ struct intel_pt_decoder {
 	unsigned int fup_tx_flags;
 	unsigned int tx_flags;
 	uint64_t timestamp_insn_cnt;
+	uint64_t sample_insn_cnt;
 	uint64_t stuck_ip;
 	int no_progress;
 	int stuck_ip_prd;
@@ -397,6 +420,7 @@ static uint64_t intel_pt_calc_ip(const s
 static inline void intel_pt_set_last_ip(struct intel_pt_decoder *decoder)
 {
 	decoder->last_ip = intel_pt_calc_ip(&decoder->packet, decoder->last_ip);
+	decoder->have_last_ip = true;
 }
 
 static inline void intel_pt_set_ip(struct intel_pt_decoder *decoder)
@@ -897,6 +921,7 @@ static int intel_pt_walk_insn(struct int
 
 	decoder->tot_insn_cnt += insn_cnt;
 	decoder->timestamp_insn_cnt += insn_cnt;
+	decoder->sample_insn_cnt += insn_cnt;
 	decoder->period_insn_cnt += insn_cnt;
 
 	if (err) {
@@ -1443,7 +1468,8 @@ static int intel_pt_walk_psbend(struct i
 
 		case INTEL_PT_FUP:
 			decoder->pge = true;
-			intel_pt_set_last_ip(decoder);
+			if (decoder->packet.count)
+				intel_pt_set_last_ip(decoder);
 			break;
 
 		case INTEL_PT_MODE_TSX:
@@ -1647,6 +1673,8 @@ next:
 			break;
 
 		case INTEL_PT_PSB:
+			decoder->last_ip = 0;
+			decoder->have_last_ip = true;
 			intel_pt_clear_stack(&decoder->stack);
 			err = intel_pt_walk_psbend(decoder);
 			if (err == -EAGAIN)
@@ -1727,8 +1755,9 @@ next:
 
 static inline bool intel_pt_have_ip(struct intel_pt_decoder *decoder)
 {
-	return decoder->last_ip || decoder->packet.count == 0 ||
-	       decoder->packet.count == 3 || decoder->packet.count == 6;
+	return decoder->packet.count &&
+	       (decoder->have_last_ip || decoder->packet.count == 3 ||
+		decoder->packet.count == 6);
 }
 
 /* Walk PSB+ packets to get in sync. */
@@ -1744,6 +1773,7 @@ static int intel_pt_walk_psb(struct inte
 		switch (decoder->packet.type) {
 		case INTEL_PT_TIP_PGD:
 			decoder->continuous_period = false;
+			__fallthrough;
 		case INTEL_PT_TIP_PGE:
 		case INTEL_PT_TIP:
 			intel_pt_log("ERROR: Unexpected packet\n");
@@ -1797,6 +1827,8 @@ static int intel_pt_walk_psb(struct inte
 			decoder->pge = false;
 			decoder->continuous_period = false;
 			intel_pt_clear_tx_flags(decoder);
+			__fallthrough;
+
 		case INTEL_PT_TNT:
 			decoder->have_tma = false;
 			intel_pt_log("ERROR: Unexpected packet\n");
@@ -1837,6 +1869,7 @@ static int intel_pt_walk_to_ip(struct in
 		switch (decoder->packet.type) {
 		case INTEL_PT_TIP_PGD:
 			decoder->continuous_period = false;
+			__fallthrough;
 		case INTEL_PT_TIP_PGE:
 		case INTEL_PT_TIP:
 			decoder->pge = decoder->packet.type != INTEL_PT_TIP_PGD;
@@ -1847,14 +1880,10 @@ static int intel_pt_walk_to_ip(struct in
 			break;
 
 		case INTEL_PT_FUP:
-			if (decoder->overflow) {
-				if (intel_pt_have_ip(decoder))
-					intel_pt_set_ip(decoder);
-				if (decoder->ip)
-					return 0;
-			}
-			if (decoder->packet.count)
-				intel_pt_set_last_ip(decoder);
+			if (intel_pt_have_ip(decoder))
+				intel_pt_set_ip(decoder);
+			if (decoder->ip)
+				return 0;
 			break;
 
 		case INTEL_PT_MTC:
@@ -1903,6 +1932,9 @@ static int intel_pt_walk_to_ip(struct in
 			break;
 
 		case INTEL_PT_PSB:
+			decoder->last_ip = 0;
+			decoder->have_last_ip = true;
+			intel_pt_clear_stack(&decoder->stack);
 			err = intel_pt_walk_psb(decoder);
 			if (err)
 				return err;
@@ -1928,6 +1960,8 @@ static int intel_pt_sync_ip(struct intel
 {
 	int err;
 
+	decoder->set_fup_tx_flags = false;
+
 	intel_pt_log("Scanning for full IP\n");
 	err = intel_pt_walk_to_ip(decoder);
 	if (err)
@@ -2036,6 +2070,7 @@ static int intel_pt_sync(struct intel_pt
 
 	decoder->pge = false;
 	decoder->continuous_period = false;
+	decoder->have_last_ip = false;
 	decoder->last_ip = 0;
 	decoder->ip = 0;
 	intel_pt_clear_stack(&decoder->stack);
@@ -2044,6 +2079,7 @@ static int intel_pt_sync(struct intel_pt
 	if (err)
 		return err;
 
+	decoder->have_last_ip = true;
 	decoder->pkt_state = INTEL_PT_STATE_NO_IP;
 
 	err = intel_pt_walk_psb(decoder);
@@ -2062,7 +2098,7 @@ static int intel_pt_sync(struct intel_pt
 
 static uint64_t intel_pt_est_timestamp(struct intel_pt_decoder *decoder)
 {
-	uint64_t est = decoder->timestamp_insn_cnt << 1;
+	uint64_t est = decoder->sample_insn_cnt << 1;
 
 	if (!decoder->cbr || !decoder->max_non_turbo_ratio)
 		goto out;
@@ -2070,7 +2106,7 @@ static uint64_t intel_pt_est_timestamp(s
 	est *= decoder->max_non_turbo_ratio;
 	est /= decoder->cbr;
 out:
-	return decoder->timestamp + est;
+	return decoder->sample_timestamp + est;
 }
 
 const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
@@ -2086,7 +2122,9 @@ const struct intel_pt_state *intel_pt_de
 			err = intel_pt_sync(decoder);
 			break;
 		case INTEL_PT_STATE_NO_IP:
+			decoder->have_last_ip = false;
 			decoder->last_ip = 0;
+			decoder->ip = 0;
 			/* Fall through */
 		case INTEL_PT_STATE_ERR_RESYNC:
 			err = intel_pt_sync_ip(decoder);
@@ -2123,15 +2161,24 @@ const struct intel_pt_state *intel_pt_de
 		}
 	} while (err == -ENOLINK);
 
-	decoder->state.err = err ? intel_pt_ext_err(err) : 0;
-	decoder->state.timestamp = decoder->timestamp;
+	if (err) {
+		decoder->state.err = intel_pt_ext_err(err);
+		decoder->state.from_ip = decoder->ip;
+		decoder->sample_timestamp = decoder->timestamp;
+		decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
+	} else {
+		decoder->state.err = 0;
+		if (intel_pt_sample_time(decoder->pkt_state)) {
+			decoder->sample_timestamp = decoder->timestamp;
+			decoder->sample_insn_cnt = decoder->timestamp_insn_cnt;
+		}
+	}
+
+	decoder->state.timestamp = decoder->sample_timestamp;
 	decoder->state.est_timestamp = intel_pt_est_timestamp(decoder);
 	decoder->state.cr3 = decoder->cr3;
 	decoder->state.tot_insn_cnt = decoder->tot_insn_cnt;
 
-	if (err)
-		decoder->state.from_ip = decoder->ip;
-
 	return &decoder->state;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c linux-libre-4.9.52-gnu/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
--- linux-libre-4.9-gnu/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c	2017-09-27 08:40:05.000000000 -0400
@@ -17,6 +17,7 @@
 #include <string.h>
 #include <endian.h>
 #include <byteswap.h>
+#include <linux/compiler.h>
 
 #include "intel-pt-pkt-decoder.h"
 
@@ -498,6 +499,7 @@ int intel_pt_pkt_desc(const struct intel
 	case INTEL_PT_FUP:
 		if (!(packet->count))
 			return snprintf(buf, buf_len, "%s no ip", name);
+		__fallthrough;
 	case INTEL_PT_CYC:
 	case INTEL_PT_VMCS:
 	case INTEL_PT_MTC:
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/probe-event.c linux-libre-4.9.52-gnu/tools/perf/util/probe-event.c
--- linux-libre-4.9-gnu/tools/perf/util/probe-event.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/probe-event.c	2017-09-27 08:40:05.000000000 -0400
@@ -163,7 +163,7 @@ static struct map *kernel_get_module_map
 
 	/* A file path -- this is an offline module */
 	if (module && strchr(module, '/'))
-		return machine__findnew_module_map(host_machine, 0, module);
+		return dso__new_map(module);
 
 	if (!module)
 		module = "kernel";
@@ -173,6 +173,7 @@ static struct map *kernel_get_module_map
 		if (strncmp(pos->dso->short_name + 1, module,
 			    pos->dso->short_name_len - 2) == 0 &&
 		    module[pos->dso->short_name_len - 2] == '\0') {
+			map__get(pos);
 			return pos;
 		}
 	}
@@ -188,15 +189,6 @@ struct map *get_target_map(const char *t
 		return kernel_get_module_map(target);
 }
 
-static void put_target_map(struct map *map, bool user)
-{
-	if (map && user) {
-		/* Only the user map needs to be released */
-		map__put(map);
-	}
-}
-
-
 static int convert_exec_to_group(const char *exec, char **result)
 {
 	char *ptr1, *ptr2, *exec_copy;
@@ -268,21 +260,6 @@ static bool kprobe_warn_out_range(const
 }
 
 /*
- * NOTE:
- * '.gnu.linkonce.this_module' section of kernel module elf directly
- * maps to 'struct module' from linux/module.h. This section contains
- * actual module name which will be used by kernel after loading it.
- * But, we cannot use 'struct module' here since linux/module.h is not
- * exposed to user-space. Offset of 'name' has remained same from long
- * time, so hardcoding it here.
- */
-#ifdef __LP64__
-#define MOD_NAME_OFFSET 24
-#else
-#define MOD_NAME_OFFSET 12
-#endif
-
-/*
  * @module can be module name of module file path. In case of path,
  * inspect elf and find out what is actual module name.
  * Caller has to free mod_name after using it.
@@ -296,6 +273,7 @@ static char *find_module_name(const char
 	Elf_Data *data;
 	Elf_Scn *sec;
 	char *mod_name = NULL;
+	int name_offset;
 
 	fd = open(module, O_RDONLY);
 	if (fd < 0)
@@ -317,7 +295,21 @@ static char *find_module_name(const char
 	if (!data || !data->d_buf)
 		goto ret_err;
 
-	mod_name = strdup((char *)data->d_buf + MOD_NAME_OFFSET);
+	/*
+	 * NOTE:
+	 * '.gnu.linkonce.this_module' section of kernel module elf directly
+	 * maps to 'struct module' from linux/module.h. This section contains
+	 * actual module name which will be used by kernel after loading it.
+	 * But, we cannot use 'struct module' here since linux/module.h is not
+	 * exposed to user-space. Offset of 'name' has remained same from long
+	 * time, so hardcoding it here.
+	 */
+	if (ehdr.e_ident[EI_CLASS] == ELFCLASS32)
+		name_offset = 12;
+	else	/* expect ELFCLASS64 by default */
+		name_offset = 24;
+
+	mod_name = strdup((char *)data->d_buf + name_offset);
 
 ret_err:
 	elf_end(elf);
@@ -412,7 +404,7 @@ static int find_alternative_probe_point(
 	}
 
 out:
-	put_target_map(map, uprobes);
+	map__put(map);
 	return ret;
 
 }
@@ -618,6 +610,67 @@ error:
 	return ret ? : -ENOENT;
 }
 
+/* Adjust symbol name and address */
+static int post_process_probe_trace_point(struct probe_trace_point *tp,
+					   struct map *map, unsigned long offs)
+{
+	struct symbol *sym;
+	u64 addr = tp->address + tp->offset - offs;
+
+	sym = map__find_symbol(map, addr);
+	if (!sym)
+		return -ENOENT;
+
+	if (strcmp(sym->name, tp->symbol)) {
+		/* If we have no realname, use symbol for it */
+		if (!tp->realname)
+			tp->realname = tp->symbol;
+		else
+			free(tp->symbol);
+		tp->symbol = strdup(sym->name);
+		if (!tp->symbol)
+			return -ENOMEM;
+	}
+	tp->offset = addr - sym->start;
+	tp->address -= offs;
+
+	return 0;
+}
+
+/*
+ * Rename DWARF symbols to ELF symbols -- gcc sometimes optimizes functions
+ * and generate new symbols with suffixes such as .constprop.N or .isra.N
+ * etc. Since those symbols are not recorded in DWARF, we have to find
+ * correct generated symbols from offline ELF binary.
+ * For online kernel or uprobes we don't need this because those are
+ * rebased on _text, or already a section relative address.
+ */
+static int
+post_process_offline_probe_trace_events(struct probe_trace_event *tevs,
+					int ntevs, const char *pathname)
+{
+	struct map *map;
+	unsigned long stext = 0;
+	int i, ret = 0;
+
+	/* Prepare a map for offline binary */
+	map = dso__new_map(pathname);
+	if (!map || get_text_start_address(pathname, &stext) < 0) {
+		pr_warning("Failed to get ELF symbols for %s\n", pathname);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < ntevs; i++) {
+		ret = post_process_probe_trace_point(&tevs[i].point,
+						     map, stext);
+		if (ret < 0)
+			break;
+	}
+	map__put(map);
+
+	return ret;
+}
+
 static int add_exec_to_probe_trace_events(struct probe_trace_event *tevs,
 					  int ntevs, const char *exec)
 {
@@ -645,18 +698,31 @@ static int add_exec_to_probe_trace_event
 	return ret;
 }
 
-static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
-					    int ntevs, const char *module)
+static int
+post_process_module_probe_trace_events(struct probe_trace_event *tevs,
+				       int ntevs, const char *module,
+				       struct debuginfo *dinfo)
 {
+	Dwarf_Addr text_offs = 0;
 	int i, ret = 0;
 	char *mod_name = NULL;
+	struct map *map;
 
 	if (!module)
 		return 0;
 
-	mod_name = find_module_name(module);
+	map = get_target_map(module, false);
+	if (!map || debuginfo__get_text_offset(dinfo, &text_offs, true) < 0) {
+		pr_warning("Failed to get ELF symbols for %s\n", module);
+		return -EINVAL;
+	}
 
+	mod_name = find_module_name(module);
 	for (i = 0; i < ntevs; i++) {
+		ret = post_process_probe_trace_point(&tevs[i].point,
+						map, (unsigned long)text_offs);
+		if (ret < 0)
+			break;
 		tevs[i].point.module =
 			strdup(mod_name ? mod_name : module);
 		if (!tevs[i].point.module) {
@@ -666,6 +732,8 @@ static int add_module_to_probe_trace_eve
 	}
 
 	free(mod_name);
+	map__put(map);
+
 	return ret;
 }
 
@@ -679,7 +747,8 @@ post_process_kernel_probe_trace_events(s
 
 	/* Skip post process if the target is an offline kernel */
 	if (symbol_conf.ignore_vmlinux_buildid)
-		return 0;
+		return post_process_offline_probe_trace_events(tevs, ntevs,
+						symbol_conf.vmlinux_name);
 
 	reloc_sym = kernel_get_ref_reloc_sym();
 	if (!reloc_sym) {
@@ -722,7 +791,7 @@ arch__post_process_probe_trace_events(st
 static int post_process_probe_trace_events(struct perf_probe_event *pev,
 					   struct probe_trace_event *tevs,
 					   int ntevs, const char *module,
-					   bool uprobe)
+					   bool uprobe, struct debuginfo *dinfo)
 {
 	int ret;
 
@@ -730,7 +799,8 @@ static int post_process_probe_trace_even
 		ret = add_exec_to_probe_trace_events(tevs, ntevs, module);
 	else if (module)
 		/* Currently ref_reloc_sym based probe is not for drivers */
-		ret = add_module_to_probe_trace_events(tevs, ntevs, module);
+		ret = post_process_module_probe_trace_events(tevs, ntevs,
+							     module, dinfo);
 	else
 		ret = post_process_kernel_probe_trace_events(tevs, ntevs);
 
@@ -774,30 +844,27 @@ static int try_to_find_probe_trace_event
 		}
 	}
 
-	debuginfo__delete(dinfo);
-
 	if (ntevs > 0) {	/* Succeeded to find trace events */
 		pr_debug("Found %d probe_trace_events.\n", ntevs);
 		ret = post_process_probe_trace_events(pev, *tevs, ntevs,
-						pev->target, pev->uprobes);
+					pev->target, pev->uprobes, dinfo);
 		if (ret < 0 || ret == ntevs) {
+			pr_debug("Post processing failed or all events are skipped. (%d)\n", ret);
 			clear_probe_trace_events(*tevs, ntevs);
 			zfree(tevs);
+			ntevs = 0;
 		}
-		if (ret != ntevs)
-			return ret < 0 ? ret : ntevs;
-		ntevs = 0;
-		/* Fall through */
 	}
 
+	debuginfo__delete(dinfo);
+
 	if (ntevs == 0)	{	/* No error but failed to find probe point. */
 		pr_warning("Probe point '%s' not found.\n",
 			   synthesize_perf_probe_point(&pev->point));
 		return -ENOENT;
-	}
-	/* Error path : ntevs < 0 */
-	pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);
-	if (ntevs < 0) {
+	} else if (ntevs < 0) {
+		/* Error path : ntevs < 0 */
+		pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);
 		if (ntevs == -EBADF)
 			pr_warning("Warning: No dwarf info found in the vmlinux - "
 				"please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
@@ -2869,7 +2936,7 @@ static int find_probe_trace_events_from_
 	}
 
 out:
-	put_target_map(map, pev->uprobes);
+	map__put(map);
 	free(syms);
 	return ret;
 
@@ -3362,10 +3429,7 @@ int show_available_funcs(const char *tar
 		return ret;
 
 	/* Get a symbol map */
-	if (user)
-		map = dso__new_map(target);
-	else
-		map = kernel_get_module_map(target);
+	map = get_target_map(target, user);
 	if (!map) {
 		pr_err("Failed to get a map for %s\n", (target) ? : "kernel");
 		return -EINVAL;
@@ -3397,9 +3461,7 @@ int show_available_funcs(const char *tar
         }
 
 end:
-	if (user) {
-		map__put(map);
-	}
+	map__put(map);
 	exit_probe_symbol_maps();
 
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/probe-finder.c linux-libre-4.9.52-gnu/tools/perf/util/probe-finder.c
--- linux-libre-4.9-gnu/tools/perf/util/probe-finder.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/probe-finder.c	2017-09-27 08:40:05.000000000 -0400
@@ -1501,7 +1501,8 @@ int debuginfo__find_available_vars_at(st
 }
 
 /* For the kernel module, we need a special code to get a DIE */
-static int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs)
+int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs,
+				bool adjust_offset)
 {
 	int n, i;
 	Elf32_Word shndx;
@@ -1530,6 +1531,8 @@ static int debuginfo__get_text_offset(st
 			if (!shdr)
 				return -ENOENT;
 			*offs = shdr->sh_addr;
+			if (adjust_offset)
+				*offs -= shdr->sh_offset;
 		}
 	}
 	return 0;
@@ -1543,16 +1546,12 @@ int debuginfo__find_probe_point(struct d
 	Dwarf_Addr _addr = 0, baseaddr = 0;
 	const char *fname = NULL, *func = NULL, *basefunc = NULL, *tmp;
 	int baseline = 0, lineno = 0, ret = 0;
-	bool reloc = false;
 
-retry:
+	/* We always need to relocate the address for aranges */
+	if (debuginfo__get_text_offset(dbg, &baseaddr, false) == 0)
+		addr += baseaddr;
 	/* Find cu die */
 	if (!dwarf_addrdie(dbg->dbg, (Dwarf_Addr)addr, &cudie)) {
-		if (!reloc && debuginfo__get_text_offset(dbg, &baseaddr) == 0) {
-			addr += baseaddr;
-			reloc = true;
-			goto retry;
-		}
 		pr_warning("Failed to find debug information for address %lx\n",
 			   addr);
 		ret = -EINVAL;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/probe-finder.h linux-libre-4.9.52-gnu/tools/perf/util/probe-finder.h
--- linux-libre-4.9-gnu/tools/perf/util/probe-finder.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/probe-finder.h	2017-09-27 08:40:05.000000000 -0400
@@ -46,6 +46,9 @@ int debuginfo__find_trace_events(struct
 int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
 				struct perf_probe_point *ppt);
 
+int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs,
+			       bool adjust_offset);
+
 /* Find a line range */
 int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/scripting-engines/Build linux-libre-4.9.52-gnu/tools/perf/util/scripting-engines/Build
--- linux-libre-4.9-gnu/tools/perf/util/scripting-engines/Build	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/scripting-engines/Build	2017-09-27 08:40:05.000000000 -0400
@@ -1,6 +1,6 @@
 libperf-$(CONFIG_LIBPERL)   += trace-event-perl.o
 libperf-$(CONFIG_LIBPYTHON) += trace-event-python.o
 
-CFLAGS_trace-event-perl.o += $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-undef -Wno-switch-default
+CFLAGS_trace-event-perl.o += $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-nested-externs -Wno-undef -Wno-switch-default
 
 CFLAGS_trace-event-python.o += $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/strfilter.c linux-libre-4.9.52-gnu/tools/perf/util/strfilter.c
--- linux-libre-4.9-gnu/tools/perf/util/strfilter.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/strfilter.c	2017-09-27 08:40:05.000000000 -0400
@@ -269,6 +269,7 @@ static int strfilter_node__sprint(struct
 		len = strfilter_node__sprint_pt(node->l, buf);
 		if (len < 0)
 			return len;
+		__fallthrough;
 	case '!':
 		if (buf) {
 			*(buf + len++) = *node->p;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/string.c linux-libre-4.9.52-gnu/tools/perf/util/string.c
--- linux-libre-4.9-gnu/tools/perf/util/string.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/string.c	2017-09-27 08:40:05.000000000 -0400
@@ -21,6 +21,8 @@ s64 perf_atoll(const char *str)
 		case 'b': case 'B':
 			if (*p)
 				goto out_err;
+
+			__fallthrough;
 		case '\0':
 			return length;
 		default:
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/symbol.c linux-libre-4.9.52-gnu/tools/perf/util/symbol.c
--- linux-libre-4.9-gnu/tools/perf/util/symbol.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/symbol.c	2017-09-27 08:40:05.000000000 -0400
@@ -1459,7 +1459,8 @@ int dso__load(struct dso *dso, struct ma
 	 * Read the build id if possible. This is required for
 	 * DSO_BINARY_TYPE__BUILDID_DEBUGINFO to work
 	 */
-	if (is_regular_file(dso->long_name) &&
+	if (!dso->has_build_id &&
+	    is_regular_file(dso->long_name) &&
 	    filename__read_build_id(dso->long_name, build_id, BUILD_ID_SIZE) > 0)
 		dso__set_build_id(dso, build_id);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/symbol-elf.c linux-libre-4.9.52-gnu/tools/perf/util/symbol-elf.c
--- linux-libre-4.9-gnu/tools/perf/util/symbol-elf.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/symbol-elf.c	2017-09-27 08:40:05.000000000 -0400
@@ -537,6 +537,12 @@ int sysfs__read_build_id(const char *fil
 				break;
 		} else {
 			int n = namesz + descsz;
+
+			if (n > (int)sizeof(bf)) {
+				n = sizeof(bf);
+				pr_debug("%s: truncating reading of build id in sysfs file %s: n_namesz=%u, n_descsz=%u.\n",
+					 __func__, filename, nhdr.n_namesz, nhdr.n_descsz);
+			}
 			if (read(fd, bf, n) != n)
 				break;
 		}
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/thread_map.c linux-libre-4.9.52-gnu/tools/perf/util/thread_map.c
--- linux-libre-4.9-gnu/tools/perf/util/thread_map.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/thread_map.c	2017-09-27 08:40:05.000000000 -0400
@@ -93,7 +93,7 @@ struct thread_map *thread_map__new_by_ui
 {
 	DIR *proc;
 	int max_threads = 32, items, i;
-	char path[256];
+	char path[NAME_MAX + 1 + 6];
 	struct dirent *dirent, **namelist = NULL;
 	struct thread_map *threads = thread_map__alloc(max_threads);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/perf/util/trace-event-scripting.c linux-libre-4.9.52-gnu/tools/perf/util/trace-event-scripting.c
--- linux-libre-4.9-gnu/tools/perf/util/trace-event-scripting.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/perf/util/trace-event-scripting.c	2017-09-27 08:40:05.000000000 -0400
@@ -95,7 +95,8 @@ static void register_python_scripting(st
 	if (err)
 		die("error registering py script extension");
 
-	scripting_context = malloc(sizeof(struct scripting_context));
+	if (scripting_context == NULL)
+		scripting_context = malloc(sizeof(*scripting_context));
 }
 
 #ifdef NO_LIBPYTHON
@@ -159,7 +160,8 @@ static void register_perl_scripting(stru
 	if (err)
 		die("error registering pl script extension");
 
-	scripting_context = malloc(sizeof(struct scripting_context));
+	if (scripting_context == NULL)
+		scripting_context = malloc(sizeof(*scripting_context));
 }
 
 #ifdef NO_LIBPERL
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/power/cpupower/utils/helpers/cpuid.c linux-libre-4.9.52-gnu/tools/power/cpupower/utils/helpers/cpuid.c
--- linux-libre-4.9-gnu/tools/power/cpupower/utils/helpers/cpuid.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/power/cpupower/utils/helpers/cpuid.c	2017-09-27 08:40:05.000000000 -0400
@@ -156,6 +156,7 @@ out:
 					 */
 			case 0x2C:	/* Westmere EP - Gulftown */
 				cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO;
+				break;
 			case 0x2A:	/* SNB */
 			case 0x2D:	/* SNB Xeon */
 			case 0x3A:	/* IVB */
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/ktest/ktest.pl linux-libre-4.9.52-gnu/tools/testing/ktest/ktest.pl
--- linux-libre-4.9-gnu/tools/testing/ktest/ktest.pl	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/ktest/ktest.pl	2017-09-27 08:40:05.000000000 -0400
@@ -2629,7 +2629,7 @@ sub do_run_test {
     }
 
     waitpid $child_pid, 0;
-    $child_exit = $?;
+    $child_exit = $? >> 8;
 
     my $end_time = time;
     $test_time = $end_time - $start_time;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/capabilities/test_execve.c linux-libre-4.9.52-gnu/tools/testing/selftests/capabilities/test_execve.c
--- linux-libre-4.9-gnu/tools/testing/selftests/capabilities/test_execve.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/capabilities/test_execve.c	2017-09-27 08:40:05.000000000 -0400
@@ -138,9 +138,6 @@ static void chdir_to_tmpfs(void)
 
 	if (chdir(cwd) != 0)
 		err(1, "chdir to private tmpfs");
-
-	if (umount2(".", MNT_DETACH) != 0)
-		err(1, "detach private tmpfs");
 }
 
 static void copy_fromat_to(int fromfd, const char *fromname, const char *toname)
@@ -248,7 +245,7 @@ static int do_tests(int uid, const char
 			err(1, "chown");
 		if (chmod("validate_cap_sgidnonroot", S_ISGID | 0710) != 0)
 			err(1, "chmod");
-}
+	}
 
 	capng_get_caps_process();
 
@@ -384,7 +381,7 @@ static int do_tests(int uid, const char
 	} else {
 		printf("[RUN]\tNon-root +ia, sgidnonroot => i\n");
 		exec_other_validate_cap("./validate_cap_sgidnonroot",
-						false, false, true, false);
+					false, false, true, false);
 
 		if (fork_wait()) {
 			printf("[RUN]\tNon-root +ia, sgidroot => i\n");
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/Makefile linux-libre-4.9.52-gnu/tools/testing/selftests/Makefile
--- linux-libre-4.9-gnu/tools/testing/selftests/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -87,7 +87,7 @@ ifdef INSTALL_PATH
 	done;
 
 	@# Ask all targets to emit their test scripts
-	echo "#!/bin/bash" > $(ALL_SCRIPT)
+	echo "#!/bin/sh" > $(ALL_SCRIPT)
 	echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
 	echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/net/run_netsocktests linux-libre-4.9.52-gnu/tools/testing/selftests/net/run_netsocktests
--- linux-libre-4.9-gnu/tools/testing/selftests/net/run_netsocktests	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/net/run_netsocktests	2017-09-27 08:40:05.000000000 -0400
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 echo "--------------------"
 echo "running socket test"
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/ntb/ntb_test.sh linux-libre-4.9.52-gnu/tools/testing/selftests/ntb/ntb_test.sh
--- linux-libre-4.9-gnu/tools/testing/selftests/ntb/ntb_test.sh	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/ntb/ntb_test.sh	2017-09-27 08:40:05.000000000 -0400
@@ -305,7 +305,7 @@ function perf_test()
 	echo "Running remote perf test $WITH DMA"
 	write_file "" $REMOTE_PERF/run
 	echo -n "  "
-	read_file $LOCAL_PERF/run
+	read_file $REMOTE_PERF/run
 	echo "  Passed"
 
 	_modprobe -r ntb_perf
@@ -326,6 +326,10 @@ function ntb_tool_tests()
 	link_test $LOCAL_TOOL $REMOTE_TOOL
 	link_test $REMOTE_TOOL $LOCAL_TOOL
 
+	#Ensure the link is up on both sides before continuing
+	write_file Y $LOCAL_TOOL/link_event
+	write_file Y $REMOTE_TOOL/link_event
+
 	for PEER_TRANS in $(ls $LOCAL_TOOL/peer_trans*); do
 		PT=$(basename $PEER_TRANS)
 		write_file $MW_SIZE $LOCAL_TOOL/$PT
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c linux-libre-4.9.52-gnu/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
--- linux-libre-4.9-gnu/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c	2017-09-27 08:40:05.000000000 -0400
@@ -66,7 +66,7 @@ int pmc56_overflow(void)
 
 	FAIL_IF(ebb_event_enable(&event));
 
-	mtspr(SPRN_PMC1, pmc_sample_period(sample_period));
+	mtspr(SPRN_PMC2, pmc_sample_period(sample_period));
 	mtspr(SPRN_PMC5, 0);
 	mtspr(SPRN_PMC6, 0);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/x86/fsgsbase.c linux-libre-4.9.52-gnu/tools/testing/selftests/x86/fsgsbase.c
--- linux-libre-4.9-gnu/tools/testing/selftests/x86/fsgsbase.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/x86/fsgsbase.c	2017-09-27 08:40:05.000000000 -0400
@@ -285,9 +285,12 @@ static void *threadproc(void *ctx)
 	}
 }
 
-static void set_gs_and_switch_to(unsigned long local, unsigned long remote)
+static void set_gs_and_switch_to(unsigned long local,
+				 unsigned short force_sel,
+				 unsigned long remote)
 {
 	unsigned long base;
+	unsigned short sel_pre_sched, sel_post_sched;
 
 	bool hard_zero = false;
 	if (local == HARD_ZERO) {
@@ -297,6 +300,8 @@ static void set_gs_and_switch_to(unsigne
 
 	printf("[RUN]\tARCH_SET_GS(0x%lx)%s, then schedule to 0x%lx\n",
 	       local, hard_zero ? " and clear gs" : "", remote);
+	if (force_sel)
+		printf("\tBefore schedule, set selector to 0x%hx\n", force_sel);
 	if (syscall(SYS_arch_prctl, ARCH_SET_GS, local) != 0)
 		err(1, "ARCH_SET_GS");
 	if (hard_zero)
@@ -307,18 +312,35 @@ static void set_gs_and_switch_to(unsigne
 		printf("[FAIL]\tGSBASE wasn't set as expected\n");
 	}
 
+	if (force_sel) {
+		asm volatile ("mov %0, %%gs" : : "rm" (force_sel));
+		sel_pre_sched = force_sel;
+		local = read_base(GS);
+
+		/*
+		 * Signal delivery seems to mess up weird selectors.  Put it
+		 * back.
+		 */
+		asm volatile ("mov %0, %%gs" : : "rm" (force_sel));
+	} else {
+		asm volatile ("mov %%gs, %0" : "=rm" (sel_pre_sched));
+	}
+
 	remote_base = remote;
 	ftx = 1;
 	syscall(SYS_futex, &ftx, FUTEX_WAKE, 0, NULL, NULL, 0);
 	while (ftx != 0)
 		syscall(SYS_futex, &ftx, FUTEX_WAIT, 1, NULL, NULL, 0);
 
+	asm volatile ("mov %%gs, %0" : "=rm" (sel_post_sched));
 	base = read_base(GS);
-	if (base == local) {
-		printf("[OK]\tGSBASE remained 0x%lx\n", local);
+	if (base == local && sel_pre_sched == sel_post_sched) {
+		printf("[OK]\tGS/BASE remained 0x%hx/0x%lx\n",
+		       sel_pre_sched, local);
 	} else {
 		nerrs++;
-		printf("[FAIL]\tGSBASE changed to 0x%lx\n", base);
+		printf("[FAIL]\tGS/BASE changed from 0x%hx/0x%lx to 0x%hx/0x%lx\n",
+		       sel_pre_sched, local, sel_post_sched, base);
 	}
 }
 
@@ -381,8 +403,15 @@ int main()
 
 	for (int local = 0; local < 4; local++) {
 		for (int remote = 0; remote < 4; remote++) {
-			set_gs_and_switch_to(bases_with_hard_zero[local],
-					     bases_with_hard_zero[remote]);
+			for (unsigned short s = 0; s < 5; s++) {
+				unsigned short sel = s;
+				if (s == 4)
+					asm ("mov %%ss, %0" : "=rm" (sel));
+				set_gs_and_switch_to(
+					bases_with_hard_zero[local],
+					sel,
+					bases_with_hard_zero[remote]);
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/x86/ldt_gdt.c linux-libre-4.9.52-gnu/tools/testing/selftests/x86/ldt_gdt.c
--- linux-libre-4.9-gnu/tools/testing/selftests/x86/ldt_gdt.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/x86/ldt_gdt.c	2017-09-27 08:40:05.000000000 -0400
@@ -403,6 +403,51 @@ static void *threadproc(void *ctx)
 	}
 }
 
+#ifdef __i386__
+
+#ifndef SA_RESTORE
+#define SA_RESTORER 0x04000000
+#endif
+
+/*
+ * The UAPI header calls this 'struct sigaction', which conflicts with
+ * glibc.  Sigh.
+ */
+struct fake_ksigaction {
+	void *handler;  /* the real type is nasty */
+	unsigned long sa_flags;
+	void (*sa_restorer)(void);
+	unsigned char sigset[8];
+};
+
+static void fix_sa_restorer(int sig)
+{
+	struct fake_ksigaction ksa;
+
+	if (syscall(SYS_rt_sigaction, sig, NULL, &ksa, 8) == 0) {
+		/*
+		 * glibc has a nasty bug: it sometimes writes garbage to
+		 * sa_restorer.  This interacts quite badly with anything
+		 * that fiddles with SS because it can trigger legacy
+		 * stack switching.  Patch it up.  See:
+		 *
+		 * https://sourceware.org/bugzilla/show_bug.cgi?id=21269
+		 */
+		if (!(ksa.sa_flags & SA_RESTORER) && ksa.sa_restorer) {
+			ksa.sa_restorer = NULL;
+			if (syscall(SYS_rt_sigaction, sig, &ksa, NULL,
+				    sizeof(ksa.sigset)) != 0)
+				err(1, "rt_sigaction");
+		}
+	}
+}
+#else
+static void fix_sa_restorer(int sig)
+{
+	/* 64-bit glibc works fine. */
+}
+#endif
+
 static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
 		       int flags)
 {
@@ -414,6 +459,7 @@ static void sethandler(int sig, void (*h
 	if (sigaction(sig, &sa, 0))
 		err(1, "sigaction");
 
+	fix_sa_restorer(sig);
 }
 
 static jmp_buf jmpbuf;
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/testing/selftests/x86/Makefile linux-libre-4.9.52-gnu/tools/testing/selftests/x86/Makefile
--- linux-libre-4.9-gnu/tools/testing/selftests/x86/Makefile	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/testing/selftests/x86/Makefile	2017-09-27 08:40:05.000000000 -0400
@@ -5,7 +5,7 @@ include ../lib.mk
 .PHONY: all all_32 all_64 warn_32bit_failure clean
 
 TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt ptrace_syscall test_mremap_vdso \
-			check_initial_reg_state sigreturn ldt_gdt iopl \
+			check_initial_reg_state sigreturn ldt_gdt iopl mpx-mini-test \
 			protection_keys
 TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault test_syscall_vdso unwind_vdso \
 			test_FCMOV test_FCOMI test_FISTTP \
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/virtio/linux/compiler.h linux-libre-4.9.52-gnu/tools/virtio/linux/compiler.h
--- linux-libre-4.9-gnu/tools/virtio/linux/compiler.h	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/virtio/linux/compiler.h	2017-09-27 08:40:05.000000000 -0400
@@ -4,6 +4,6 @@
 #define WRITE_ONCE(var, val) \
 	(*((volatile typeof(val) *)(&(var))) = (val))
 
-#define READ_ONCE(var) (*((volatile typeof(val) *)(&(var))))
+#define READ_ONCE(var) (*((volatile typeof(var) *)(&(var))))
 
 #endif
diff -druNp --no-dereference linux-libre-4.9-gnu/tools/virtio/ringtest/run-on-all.sh linux-libre-4.9.52-gnu/tools/virtio/ringtest/run-on-all.sh
--- linux-libre-4.9-gnu/tools/virtio/ringtest/run-on-all.sh	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/tools/virtio/ringtest/run-on-all.sh	2017-09-27 08:40:05.000000000 -0400
@@ -1,12 +1,13 @@
 #!/bin/sh
 
+CPUS_ONLINE=$(lscpu --online -p=cpu|grep -v -e '#')
 #use last CPU for host. Why not the first?
 #many devices tend to use cpu0 by default so
 #it tends to be busier
-HOST_AFFINITY=$(lscpu -p=cpu | tail -1)
+HOST_AFFINITY=$(echo "${CPUS_ONLINE}"|tail -n 1)
 
 #run command on all cpus
-for cpu in $(seq 0 $HOST_AFFINITY)
+for cpu in $CPUS_ONLINE
 do
 	#Don't run guest and host on same CPU
 	#It actually works ok if using signalling
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-init.c linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-init.c
--- linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-init.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-init.c	2017-09-27 08:40:05.000000000 -0400
@@ -268,15 +268,11 @@ static void kvm_vgic_dist_destroy(struct
 {
 	struct vgic_dist *dist = &kvm->arch.vgic;
 
-	mutex_lock(&kvm->lock);
-
 	dist->ready = false;
 	dist->initialized = false;
 
 	kfree(dist->spis);
 	dist->nr_spis = 0;
-
-	mutex_unlock(&kvm->lock);
 }
 
 void kvm_vgic_vcpu_destroy(struct kvm_vcpu *vcpu)
@@ -286,7 +282,8 @@ void kvm_vgic_vcpu_destroy(struct kvm_vc
 	INIT_LIST_HEAD(&vgic_cpu->ap_list_head);
 }
 
-void kvm_vgic_destroy(struct kvm *kvm)
+/* To be called with kvm->lock held */
+static void __kvm_vgic_destroy(struct kvm *kvm)
 {
 	struct kvm_vcpu *vcpu;
 	int i;
@@ -297,6 +294,13 @@ void kvm_vgic_destroy(struct kvm *kvm)
 		kvm_vgic_vcpu_destroy(vcpu);
 }
 
+void kvm_vgic_destroy(struct kvm *kvm)
+{
+	mutex_lock(&kvm->lock);
+	__kvm_vgic_destroy(kvm);
+	mutex_unlock(&kvm->lock);
+}
+
 /**
  * vgic_lazy_init: Lazy init is only allowed if the GIC exposed to the guest
  * is a GICv2. A GICv3 must be explicitly initialized by the guest using the
@@ -348,6 +352,10 @@ int kvm_vgic_map_resources(struct kvm *k
 		ret = vgic_v2_map_resources(kvm);
 	else
 		ret = vgic_v3_map_resources(kvm);
+
+	if (ret)
+		__kvm_vgic_destroy(kvm);
+
 out:
 	mutex_unlock(&kvm->lock);
 	return ret;
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-irqfd.c linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-irqfd.c
--- linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-irqfd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-irqfd.c	2017-09-27 08:40:05.000000000 -0400
@@ -99,6 +99,9 @@ int kvm_set_msi(struct kvm_kernel_irq_ro
 	if (!vgic_has_its(kvm))
 		return -ENODEV;
 
+	if (!level)
+		return -1;
+
 	return vgic_its_inject_msi(kvm, &msi);
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-mmio.c linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-mmio.c
--- linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-mmio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-mmio.c	2017-09-27 08:40:05.000000000 -0400
@@ -187,21 +187,37 @@ unsigned long vgic_mmio_read_active(stru
 static void vgic_mmio_change_active(struct kvm_vcpu *vcpu, struct vgic_irq *irq,
 				    bool new_active_state)
 {
+	struct kvm_vcpu *requester_vcpu;
 	spin_lock(&irq->irq_lock);
+
+	/*
+	 * The vcpu parameter here can mean multiple things depending on how
+	 * this function is called; when handling a trap from the kernel it
+	 * depends on the GIC version, and these functions are also called as
+	 * part of save/restore from userspace.
+	 *
+	 * Therefore, we have to figure out the requester in a reliable way.
+	 *
+	 * When accessing VGIC state from user space, the requester_vcpu is
+	 * NULL, which is fine, because we guarantee that no VCPUs are running
+	 * when accessing VGIC state from user space so irq->vcpu->cpu is
+	 * always -1.
+	 */
+	requester_vcpu = kvm_arm_get_running_vcpu();
+
 	/*
 	 * If this virtual IRQ was written into a list register, we
 	 * have to make sure the CPU that runs the VCPU thread has
-	 * synced back LR state to the struct vgic_irq.  We can only
-	 * know this for sure, when either this irq is not assigned to
-	 * anyone's AP list anymore, or the VCPU thread is not
-	 * running on any CPUs.
+	 * synced back the LR state to the struct vgic_irq.
 	 *
-	 * In the opposite case, we know the VCPU thread may be on its
-	 * way back from the guest and still has to sync back this
-	 * IRQ, so we release and re-acquire the spin_lock to let the
-	 * other thread sync back the IRQ.
+	 * As long as the conditions below are true, we know the VCPU thread
+	 * may be on its way back from the guest (we kicked the VCPU thread in
+	 * vgic_change_active_prepare)  and still has to sync back this IRQ,
+	 * so we release and re-acquire the spin_lock to let the other thread
+	 * sync back the IRQ.
 	 */
 	while (irq->vcpu && /* IRQ may have state in an LR somewhere */
+	       irq->vcpu != requester_vcpu && /* Current thread is not the VCPU thread */
 	       irq->vcpu->cpu != -1) /* VCPU thread is running */
 		cond_resched_lock(&irq->irq_lock);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-v2.c linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-v2.c
--- linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-v2.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-v2.c	2017-09-27 08:40:05.000000000 -0400
@@ -168,6 +168,13 @@ void vgic_v2_populate_lr(struct kvm_vcpu
 	if (irq->hw) {
 		val |= GICH_LR_HW;
 		val |= irq->hwintid << GICH_LR_PHYSID_CPUID_SHIFT;
+		/*
+		 * Never set pending+active on a HW interrupt, as the
+		 * pending state is kept at the physical distributor
+		 * level.
+		 */
+		if (irq->active && irq->pending)
+			val &= ~GICH_LR_PENDING_BIT;
 	} else {
 		if (irq->config == VGIC_CONFIG_LEVEL)
 			val |= GICH_LR_EOI;
@@ -293,8 +300,6 @@ int vgic_v2_map_resources(struct kvm *kv
 	dist->ready = true;
 
 out:
-	if (ret)
-		kvm_vgic_destroy(kvm);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-v3.c linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-v3.c
--- linux-libre-4.9-gnu/virt/kvm/arm/vgic/vgic-v3.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/arm/vgic/vgic-v3.c	2017-09-27 08:40:05.000000000 -0400
@@ -151,6 +151,13 @@ void vgic_v3_populate_lr(struct kvm_vcpu
 	if (irq->hw) {
 		val |= ICH_LR_HW;
 		val |= ((u64)irq->hwintid) << ICH_LR_PHYS_ID_SHIFT;
+		/*
+		 * Never set pending+active on a HW interrupt, as the
+		 * pending state is kept at the physical distributor
+		 * level.
+		 */
+		if (irq->active && irq->pending)
+			val &= ~ICH_LR_PENDING_BIT;
 	} else {
 		if (irq->config == VGIC_CONFIG_LEVEL)
 			val |= ICH_LR_EOI;
@@ -302,8 +309,6 @@ int vgic_v3_map_resources(struct kvm *kv
 	dist->ready = true;
 
 out:
-	if (ret)
-		kvm_vgic_destroy(kvm);
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/eventfd.c linux-libre-4.9.52-gnu/virt/kvm/eventfd.c
--- linux-libre-4.9-gnu/virt/kvm/eventfd.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/eventfd.c	2017-09-27 08:40:05.000000000 -0400
@@ -870,7 +870,8 @@ kvm_deassign_ioeventfd_idx(struct kvm *k
 			continue;
 
 		kvm_io_bus_unregister_dev(kvm, bus_idx, &p->dev);
-		kvm->buses[bus_idx]->ioeventfd_count--;
+		if (kvm->buses[bus_idx])
+			kvm->buses[bus_idx]->ioeventfd_count--;
 		ioeventfd_release(p);
 		ret = 0;
 		break;
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/kvm_main.c linux-libre-4.9.52-gnu/virt/kvm/kvm_main.c
--- linux-libre-4.9-gnu/virt/kvm/kvm_main.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/kvm_main.c	2017-09-27 08:40:05.000000000 -0400
@@ -720,8 +720,11 @@ static void kvm_destroy_vm(struct kvm *k
 	list_del(&kvm->vm_list);
 	spin_unlock(&kvm_lock);
 	kvm_free_irq_routing(kvm);
-	for (i = 0; i < KVM_NR_BUSES; i++)
-		kvm_io_bus_destroy(kvm->buses[i]);
+	for (i = 0; i < KVM_NR_BUSES; i++) {
+		if (kvm->buses[i])
+			kvm_io_bus_destroy(kvm->buses[i]);
+		kvm->buses[i] = NULL;
+	}
 	kvm_coalesced_mmio_free(kvm);
 #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER)
 	mmu_notifier_unregister(&kvm->mmu_notifier, kvm->mm);
@@ -3463,6 +3466,8 @@ int kvm_io_bus_write(struct kvm_vcpu *vc
 	};
 
 	bus = srcu_dereference(vcpu->kvm->buses[bus_idx], &vcpu->kvm->srcu);
+	if (!bus)
+		return -ENOMEM;
 	r = __kvm_io_bus_write(vcpu, bus, &range, val);
 	return r < 0 ? r : 0;
 }
@@ -3480,6 +3485,8 @@ int kvm_io_bus_write_cookie(struct kvm_v
 	};
 
 	bus = srcu_dereference(vcpu->kvm->buses[bus_idx], &vcpu->kvm->srcu);
+	if (!bus)
+		return -ENOMEM;
 
 	/* First try the device referenced by cookie. */
 	if ((cookie >= 0) && (cookie < bus->dev_count) &&
@@ -3530,6 +3537,8 @@ int kvm_io_bus_read(struct kvm_vcpu *vcp
 	};
 
 	bus = srcu_dereference(vcpu->kvm->buses[bus_idx], &vcpu->kvm->srcu);
+	if (!bus)
+		return -ENOMEM;
 	r = __kvm_io_bus_read(vcpu, bus, &range, val);
 	return r < 0 ? r : 0;
 }
@@ -3542,6 +3551,9 @@ int kvm_io_bus_register_dev(struct kvm *
 	struct kvm_io_bus *new_bus, *bus;
 
 	bus = kvm->buses[bus_idx];
+	if (!bus)
+		return -ENOMEM;
+
 	/* exclude ioeventfd which is limited by maximum fd */
 	if (bus->dev_count - bus->ioeventfd_count > NR_IOBUS_DEVS - 1)
 		return -ENOSPC;
@@ -3561,37 +3573,41 @@ int kvm_io_bus_register_dev(struct kvm *
 }
 
 /* Caller must hold slots_lock. */
-int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
-			      struct kvm_io_device *dev)
+void kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
+			       struct kvm_io_device *dev)
 {
-	int i, r;
+	int i;
 	struct kvm_io_bus *new_bus, *bus;
 
 	bus = kvm->buses[bus_idx];
-	r = -ENOENT;
+	if (!bus)
+		return;
+
 	for (i = 0; i < bus->dev_count; i++)
 		if (bus->range[i].dev == dev) {
-			r = 0;
 			break;
 		}
 
-	if (r)
-		return r;
+	if (i == bus->dev_count)
+		return;
 
 	new_bus = kmalloc(sizeof(*bus) + ((bus->dev_count - 1) *
 			  sizeof(struct kvm_io_range)), GFP_KERNEL);
-	if (!new_bus)
-		return -ENOMEM;
+	if (!new_bus)  {
+		pr_err("kvm: failed to shrink bus, removing it completely\n");
+		goto broken;
+	}
 
 	memcpy(new_bus, bus, sizeof(*bus) + i * sizeof(struct kvm_io_range));
 	new_bus->dev_count--;
 	memcpy(new_bus->range + i, bus->range + i + 1,
 	       (new_bus->dev_count - i) * sizeof(struct kvm_io_range));
 
+broken:
 	rcu_assign_pointer(kvm->buses[bus_idx], new_bus);
 	synchronize_srcu_expedited(&kvm->srcu);
 	kfree(bus);
-	return r;
+	return;
 }
 
 struct kvm_io_device *kvm_io_bus_get_dev(struct kvm *kvm, enum kvm_bus bus_idx,
@@ -3604,6 +3620,8 @@ struct kvm_io_device *kvm_io_bus_get_dev
 	srcu_idx = srcu_read_lock(&kvm->srcu);
 
 	bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu);
+	if (!bus)
+		goto out_unlock;
 
 	dev_idx = kvm_io_bus_get_first_dev(bus, addr, 1);
 	if (dev_idx < 0)
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/kvm/vfio.c linux-libre-4.9.52-gnu/virt/kvm/vfio.c
--- linux-libre-4.9-gnu/virt/kvm/vfio.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/kvm/vfio.c	2017-09-27 08:40:05.000000000 -0400
@@ -47,6 +47,22 @@ static struct vfio_group *kvm_vfio_group
 	return vfio_group;
 }
 
+static bool kvm_vfio_external_group_match_file(struct vfio_group *group,
+					       struct file *filep)
+{
+	bool ret, (*fn)(struct vfio_group *, struct file *);
+
+	fn = symbol_get(vfio_external_group_match_file);
+	if (!fn)
+		return false;
+
+	ret = fn(group, filep);
+
+	symbol_put(vfio_external_group_match_file);
+
+	return ret;
+}
+
 static void kvm_vfio_group_put_external_user(struct vfio_group *vfio_group)
 {
 	void (*fn)(struct vfio_group *);
@@ -171,18 +187,13 @@ static int kvm_vfio_set_group(struct kvm
 		if (!f.file)
 			return -EBADF;
 
-		vfio_group = kvm_vfio_group_get_external_user(f.file);
-		fdput(f);
-
-		if (IS_ERR(vfio_group))
-			return PTR_ERR(vfio_group);
-
 		ret = -ENOENT;
 
 		mutex_lock(&kv->lock);
 
 		list_for_each_entry(kvg, &kv->group_list, node) {
-			if (kvg->vfio_group != vfio_group)
+			if (!kvm_vfio_external_group_match_file(kvg->vfio_group,
+								f.file))
 				continue;
 
 			list_del(&kvg->node);
@@ -196,7 +207,7 @@ static int kvm_vfio_set_group(struct kvm
 
 		mutex_unlock(&kv->lock);
 
-		kvm_vfio_group_put_external_user(vfio_group);
+		fdput(f);
 
 		kvm_vfio_update_coherency(dev);
 
diff -druNp --no-dereference linux-libre-4.9-gnu/virt/lib/irqbypass.c linux-libre-4.9.52-gnu/virt/lib/irqbypass.c
--- linux-libre-4.9-gnu/virt/lib/irqbypass.c	2016-12-11 14:17:54.000000000 -0500
+++ linux-libre-4.9.52-gnu/virt/lib/irqbypass.c	2017-09-27 08:40:05.000000000 -0400
@@ -195,7 +195,7 @@ int irq_bypass_register_consumer(struct
 	mutex_lock(&lock);
 
 	list_for_each_entry(tmp, &consumers, node) {
-		if (tmp->token == consumer->token) {
+		if (tmp->token == consumer->token || tmp == consumer) {
 			mutex_unlock(&lock);
 			module_put(THIS_MODULE);
 			return -EBUSY;
@@ -245,7 +245,7 @@ void irq_bypass_unregister_consumer(stru
 	mutex_lock(&lock);
 
 	list_for_each_entry(tmp, &consumers, node) {
-		if (tmp->token != consumer->token)
+		if (tmp != consumer)
 			continue;
 
 		list_for_each_entry(producer, &producers, node) {
