diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arc/include/asm/pgtable.h linux-libre-4.1.31-gnu/arch/arc/include/asm/pgtable.h
--- linux-libre-4.1.30-gnu/arch/arc/include/asm/pgtable.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arc/include/asm/pgtable.h	2016-08-22 09:50:48.000000000 -0400
@@ -96,7 +96,7 @@
 #define ___DEF (_PAGE_PRESENT | _PAGE_DEF_CACHEABLE)
 
 /* Set of bits not changed in pte_modify */
-#define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED)
+#define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_SPECIAL)
 
 /* More Abbrevaited helpers */
 #define PAGE_U_NONE     __pgprot(___DEF)
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts linux-libre-4.1.31-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts
--- linux-libre-4.1.30-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm/boot/dts/sun4i-a10-a1000.dts	2016-08-22 09:50:48.000000000 -0400
@@ -178,6 +178,7 @@
 		regulator-name = "emac-3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <20000>;
 		enable-active-high;
 		gpio = <&pio 7 15 GPIO_ACTIVE_HIGH>;
 	};
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts linux-libre-4.1.31-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts
--- linux-libre-4.1.30-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm/boot/dts/sun4i-a10-hackberry.dts	2016-08-22 09:50:48.000000000 -0400
@@ -159,6 +159,7 @@
 		regulator-name = "emac-3v3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <20000>;
 		enable-active-high;
 		gpio = <&pio 7 19 GPIO_ACTIVE_HIGH>;
 	};
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/include/asm/ptrace.h linux-libre-4.1.31-gnu/arch/arm64/include/asm/ptrace.h
--- linux-libre-4.1.30-gnu/arch/arm64/include/asm/ptrace.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/include/asm/ptrace.h	2016-08-22 09:50:48.000000000 -0400
@@ -58,6 +58,7 @@
 #define COMPAT_PSR_Z_BIT	0x40000000
 #define COMPAT_PSR_N_BIT	0x80000000
 #define COMPAT_PSR_IT_MASK	0x0600fc00	/* If-Then execution state mask */
+#define COMPAT_PSR_GE_MASK	0x000f0000
 
 #ifdef CONFIG_CPU_BIG_ENDIAN
 #define COMPAT_PSR_ENDSTATE	COMPAT_PSR_E_BIT
@@ -116,6 +117,8 @@ struct pt_regs {
 	};
 	u64 orig_x0;
 	u64 syscallno;
+	u64 orig_addr_limit;
+	u64 unused;	// maintain 16 byte alignment
 };
 
 #define arch_has_single_step()	(1)
@@ -151,35 +154,9 @@ static inline unsigned long regs_return_
 	return regs->regs[0];
 }
 
-/*
- * Are the current registers suitable for user mode? (used to maintain
- * security in signal handlers)
- */
-static inline int valid_user_regs(struct user_pt_regs *regs)
-{
-	if (user_mode(regs) && (regs->pstate & PSR_I_BIT) == 0) {
-		regs->pstate &= ~(PSR_F_BIT | PSR_A_BIT);
-
-		/* The T bit is reserved for AArch64 */
-		if (!(regs->pstate & PSR_MODE32_BIT))
-			regs->pstate &= ~COMPAT_PSR_T_BIT;
-
-		return 1;
-	}
-
-	/*
-	 * Force PSR to something logical...
-	 */
-	regs->pstate &= PSR_f | PSR_s | (PSR_x & ~PSR_A_BIT) | \
-			COMPAT_PSR_T_BIT | PSR_MODE32_BIT;
-
-	if (!(regs->pstate & PSR_MODE32_BIT)) {
-		regs->pstate &= ~COMPAT_PSR_T_BIT;
-		regs->pstate |= PSR_MODE_EL0t;
-	}
-
-	return 0;
-}
+/* We must avoid circular header include via sched.h */
+struct task_struct;
+int valid_user_regs(struct user_pt_regs *regs, struct task_struct *task);
 
 #define instruction_pointer(regs)	((unsigned long)(regs)->pc)
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/kernel/asm-offsets.c linux-libre-4.1.31-gnu/arch/arm64/kernel/asm-offsets.c
--- linux-libre-4.1.30-gnu/arch/arm64/kernel/asm-offsets.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/kernel/asm-offsets.c	2016-08-22 09:50:48.000000000 -0400
@@ -58,6 +58,7 @@ int main(void)
   DEFINE(S_PC,			offsetof(struct pt_regs, pc));
   DEFINE(S_ORIG_X0,		offsetof(struct pt_regs, orig_x0));
   DEFINE(S_SYSCALLNO,		offsetof(struct pt_regs, syscallno));
+  DEFINE(S_ORIG_ADDR_LIMIT,	offsetof(struct pt_regs, orig_addr_limit));
   DEFINE(S_FRAME_SIZE,		sizeof(struct pt_regs));
   BLANK();
   DEFINE(MM_CONTEXT_ID,		offsetof(struct mm_struct, context.id));
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/kernel/debug-monitors.c linux-libre-4.1.31-gnu/arch/arm64/kernel/debug-monitors.c
--- linux-libre-4.1.30-gnu/arch/arm64/kernel/debug-monitors.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/kernel/debug-monitors.c	2016-08-22 09:50:48.000000000 -0400
@@ -150,7 +150,6 @@ static int debug_monitors_init(void)
 	/* Clear the OS lock. */
 	on_each_cpu(clear_os_lock, NULL, 1);
 	isb();
-	local_dbg_enable();
 
 	/* Register hotplug handler. */
 	__register_cpu_notifier(&os_lock_nb);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/kernel/entry.S linux-libre-4.1.31-gnu/arch/arm64/kernel/entry.S
--- linux-libre-4.1.30-gnu/arch/arm64/kernel/entry.S	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/kernel/entry.S	2016-08-22 09:50:48.000000000 -0400
@@ -27,6 +27,7 @@
 #include <asm/cpufeature.h>
 #include <asm/errno.h>
 #include <asm/esr.h>
+#include <asm/memory.h>
 #include <asm/thread_info.h>
 #include <asm/unistd.h>
 
@@ -93,7 +94,13 @@
 	disable_step_tsk x19, x20		// exceptions when scheduling.
 	.else
 	add	x21, sp, #S_FRAME_SIZE
-	.endif
+	get_thread_info tsk
+	/* Save the task's original addr_limit and set USER_DS (TASK_SIZE_64) */
+	ldr	x20, [tsk, #TI_ADDR_LIMIT]
+	str	x20, [sp, #S_ORIG_ADDR_LIMIT]
+	mov	x20, #TASK_SIZE_64
+	str	x20, [tsk, #TI_ADDR_LIMIT]
+	.endif /* \el == 0 */
 	mrs	x22, elr_el1
 	mrs	x23, spsr_el1
 	stp	lr, x21, [sp, #S_LR]
@@ -117,6 +124,12 @@
 	.endm
 
 	.macro	kernel_exit, el, ret = 0
+	.if	\el != 0
+	/* Restore the task's original addr_limit. */
+	ldr	x20, [sp, #S_ORIG_ADDR_LIMIT]
+	str	x20, [tsk, #TI_ADDR_LIMIT]
+	.endif
+
 	ldp	x21, x22, [sp, #S_PC]		// load ELR, SPSR
 	.if	\el == 0
 	ct_user_enter
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/kernel/ptrace.c linux-libre-4.1.31-gnu/arch/arm64/kernel/ptrace.c
--- linux-libre-4.1.30-gnu/arch/arm64/kernel/ptrace.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/kernel/ptrace.c	2016-08-22 09:50:48.000000000 -0400
@@ -39,6 +39,7 @@
 #include <linux/elf.h>
 
 #include <asm/compat.h>
+#include <asm/cpufeature.h>
 #include <asm/debug-monitors.h>
 #include <asm/pgtable.h>
 #include <asm/syscall.h>
@@ -500,7 +501,7 @@ static int gpr_set(struct task_struct *t
 	if (ret)
 		return ret;
 
-	if (!valid_user_regs(&newregs))
+	if (!valid_user_regs(&newregs, target))
 		return -EINVAL;
 
 	task_pt_regs(target)->user_regs = newregs;
@@ -770,7 +771,7 @@ static int compat_gpr_set(struct task_st
 
 	}
 
-	if (valid_user_regs(&newregs.user_regs))
+	if (valid_user_regs(&newregs.user_regs, target))
 		*task_pt_regs(target) = newregs;
 	else
 		ret = -EINVAL;
@@ -1182,3 +1183,79 @@ asmlinkage void syscall_trace_exit(struc
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall(regs, PTRACE_SYSCALL_EXIT);
 }
+
+/*
+ * Bits which are always architecturally RES0 per ARM DDI 0487A.h
+ * Userspace cannot use these until they have an architectural meaning.
+ * We also reserve IL for the kernel; SS is handled dynamically.
+ */
+#define SPSR_EL1_AARCH64_RES0_BITS \
+	(GENMASK_ULL(63,32) | GENMASK_ULL(27, 22) | GENMASK_ULL(20, 10) | \
+	 GENMASK_ULL(5, 5))
+#define SPSR_EL1_AARCH32_RES0_BITS \
+	(GENMASK_ULL(63,32) | GENMASK_ULL(24, 22) | GENMASK_ULL(20,20))
+
+static int valid_compat_regs(struct user_pt_regs *regs)
+{
+	regs->pstate &= ~SPSR_EL1_AARCH32_RES0_BITS;
+
+	if (!system_supports_mixed_endian_el0()) {
+		if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+			regs->pstate |= COMPAT_PSR_E_BIT;
+		else
+			regs->pstate &= ~COMPAT_PSR_E_BIT;
+	}
+
+	if (user_mode(regs) && (regs->pstate & PSR_MODE32_BIT) &&
+	    (regs->pstate & COMPAT_PSR_A_BIT) == 0 &&
+	    (regs->pstate & COMPAT_PSR_I_BIT) == 0 &&
+	    (regs->pstate & COMPAT_PSR_F_BIT) == 0) {
+		return 1;
+	}
+
+	/*
+	 * Force PSR to a valid 32-bit EL0t, preserving the same bits as
+	 * arch/arm.
+	 */
+	regs->pstate &= COMPAT_PSR_N_BIT | COMPAT_PSR_Z_BIT |
+			COMPAT_PSR_C_BIT | COMPAT_PSR_V_BIT |
+			COMPAT_PSR_Q_BIT | COMPAT_PSR_IT_MASK |
+			COMPAT_PSR_GE_MASK | COMPAT_PSR_E_BIT |
+			COMPAT_PSR_T_BIT;
+	regs->pstate |= PSR_MODE32_BIT;
+
+	return 0;
+}
+
+static int valid_native_regs(struct user_pt_regs *regs)
+{
+	regs->pstate &= ~SPSR_EL1_AARCH64_RES0_BITS;
+
+	if (user_mode(regs) && !(regs->pstate & PSR_MODE32_BIT) &&
+	    (regs->pstate & PSR_D_BIT) == 0 &&
+	    (regs->pstate & PSR_A_BIT) == 0 &&
+	    (regs->pstate & PSR_I_BIT) == 0 &&
+	    (regs->pstate & PSR_F_BIT) == 0) {
+		return 1;
+	}
+
+	/* Force PSR to a valid 64-bit EL0t */
+	regs->pstate &= PSR_N_BIT | PSR_Z_BIT | PSR_C_BIT | PSR_V_BIT;
+
+	return 0;
+}
+
+/*
+ * Are the current registers suitable for user mode? (used to maintain
+ * security in signal handlers)
+ */
+int valid_user_regs(struct user_pt_regs *regs, struct task_struct *task)
+{
+	if (!test_tsk_thread_flag(task, TIF_SINGLESTEP))
+		regs->pstate &= ~DBG_SPSR_SS;
+
+	if (is_compat_thread(task_thread_info(task)))
+		return valid_compat_regs(regs);
+	else
+		return valid_native_regs(regs);
+}
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/kernel/signal32.c linux-libre-4.1.31-gnu/arch/arm64/kernel/signal32.c
--- linux-libre-4.1.30-gnu/arch/arm64/kernel/signal32.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/kernel/signal32.c	2016-08-22 09:50:48.000000000 -0400
@@ -356,7 +356,7 @@ static int compat_restore_sigframe(struc
 	 */
 	regs->syscallno = ~0UL;
 
-	err |= !valid_user_regs(&regs->user_regs);
+	err |= !valid_user_regs(&regs->user_regs, current);
 
 	aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
 	if (err == 0)
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/kernel/signal.c linux-libre-4.1.31-gnu/arch/arm64/kernel/signal.c
--- linux-libre-4.1.30-gnu/arch/arm64/kernel/signal.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/kernel/signal.c	2016-08-22 09:50:48.000000000 -0400
@@ -115,7 +115,7 @@ static int restore_sigframe(struct pt_re
 	 */
 	regs->syscallno = ~0UL;
 
-	err |= !valid_user_regs(&regs->user_regs);
+	err |= !valid_user_regs(&regs->user_regs, current);
 
 	if (err == 0) {
 		struct fpsimd_context *fpsimd_ctx =
@@ -307,7 +307,7 @@ static void handle_signal(struct ksignal
 	/*
 	 * Check that the resulting registers are actually sane.
 	 */
-	ret |= !valid_user_regs(&regs->user_regs);
+	ret |= !valid_user_regs(&regs->user_regs, current);
 
 	/*
 	 * Fast forward the stepping logic so we step into the signal
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/kernel/smp.c linux-libre-4.1.31-gnu/arch/arm64/kernel/smp.c
--- linux-libre-4.1.30-gnu/arch/arm64/kernel/smp.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/kernel/smp.c	2016-08-22 09:50:48.000000000 -0400
@@ -179,7 +179,6 @@ asmlinkage void secondary_start_kernel(v
 	set_cpu_online(cpu, true);
 	complete(&cpu_running);
 
-	local_dbg_enable();
 	local_irq_enable();
 	local_async_enable();
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/arm64/mm/proc.S linux-libre-4.1.31-gnu/arch/arm64/mm/proc.S
--- linux-libre-4.1.30-gnu/arch/arm64/mm/proc.S	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/arm64/mm/proc.S	2016-08-22 09:50:48.000000000 -0400
@@ -205,6 +205,8 @@ ENTRY(__cpu_setup)
 	msr	cpacr_el1, x0			// Enable FP/ASIMD
 	mov	x0, #1 << 12			// Reset mdscr_el1 and disable
 	msr	mdscr_el1, x0			// access to the DCC from EL0
+	isb					// Unmask debug exceptions now,
+	enable_dbg				// since this is per-cpu
 	reset_pmuserenr_el0 x0			// Disable PMU access from EL0
 	/*
 	 * Memory region attributes for LPAE:
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/metag/include/asm/cmpxchg_lnkget.h linux-libre-4.1.31-gnu/arch/metag/include/asm/cmpxchg_lnkget.h
--- linux-libre-4.1.30-gnu/arch/metag/include/asm/cmpxchg_lnkget.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/metag/include/asm/cmpxchg_lnkget.h	2016-08-22 09:50:48.000000000 -0400
@@ -73,7 +73,7 @@ static inline unsigned long __cmpxchg_u3
 		      "	DCACHE	[%2], %0\n"
 #endif
 		      "2:\n"
-		      : "=&d" (temp), "=&da" (retval)
+		      : "=&d" (temp), "=&d" (retval)
 		      : "da" (m), "bd" (old), "da" (new)
 		      : "cc"
 		      );
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/mips/kernel/csrc-r4k.c linux-libre-4.1.31-gnu/arch/mips/kernel/csrc-r4k.c
--- linux-libre-4.1.30-gnu/arch/mips/kernel/csrc-r4k.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/mips/kernel/csrc-r4k.c	2016-08-22 09:50:48.000000000 -0400
@@ -23,7 +23,7 @@ static struct clocksource clocksource_mi
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-static u64 notrace r4k_read_sched_clock(void)
+static u64 __maybe_unused notrace r4k_read_sched_clock(void)
 {
 	return read_c0_count();
 }
@@ -38,7 +38,9 @@ int __init init_r4k_clocksource(void)
 
 	clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
 
+#ifndef CONFIG_CPU_FREQ
 	sched_clock_register(r4k_read_sched_clock, 32, mips_hpt_frequency);
+#endif
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/mips/kernel/scall64-n32.S linux-libre-4.1.31-gnu/arch/mips/kernel/scall64-n32.S
--- linux-libre-4.1.30-gnu/arch/mips/kernel/scall64-n32.S	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/mips/kernel/scall64-n32.S	2016-08-22 09:50:48.000000000 -0400
@@ -353,7 +353,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_ni_syscall			/* available, was setaltroot */
 	PTR	sys_add_key
 	PTR	sys_request_key
-	PTR	sys_keyctl			/* 6245 */
+	PTR	compat_sys_keyctl		/* 6245 */
 	PTR	sys_set_thread_area
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/mips/kernel/scall64-o32.S linux-libre-4.1.31-gnu/arch/mips/kernel/scall64-o32.S
--- linux-libre-4.1.30-gnu/arch/mips/kernel/scall64-o32.S	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/mips/kernel/scall64-o32.S	2016-08-22 09:50:48.000000000 -0400
@@ -492,7 +492,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_ni_syscall			/* available, was setaltroot */
 	PTR	sys_add_key			/* 4280 */
 	PTR	sys_request_key
-	PTR	sys_keyctl
+	PTR	compat_sys_keyctl
 	PTR	sys_set_thread_area
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch		/* 4285 */
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/mips/kvm/emulate.c linux-libre-4.1.31-gnu/arch/mips/kvm/emulate.c
--- linux-libre-4.1.30-gnu/arch/mips/kvm/emulate.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/mips/kvm/emulate.c	2016-08-22 09:50:48.000000000 -0400
@@ -1629,8 +1629,14 @@ enum emulation_result kvm_mips_emulate_c
 
 	preempt_disable();
 	if (KVM_GUEST_KSEGX(va) == KVM_GUEST_KSEG0) {
-		if (kvm_mips_host_tlb_lookup(vcpu, va) < 0)
-			kvm_mips_handle_kseg0_tlb_fault(va, vcpu);
+		if (kvm_mips_host_tlb_lookup(vcpu, va) < 0 &&
+		    kvm_mips_handle_kseg0_tlb_fault(va, vcpu)) {
+			kvm_err("%s: handling mapped kseg0 tlb fault for %lx, vcpu: %p, ASID: %#lx\n",
+				__func__, va, vcpu, read_c0_entryhi());
+			er = EMULATE_FAIL;
+			preempt_enable();
+			goto done;
+		}
 	} else if ((KVM_GUEST_KSEGX(va) < KVM_GUEST_KSEG0) ||
 		   KVM_GUEST_KSEGX(va) == KVM_GUEST_KSEG23) {
 		int index;
@@ -1665,14 +1671,19 @@ enum emulation_result kvm_mips_emulate_c
 								run, vcpu);
 				preempt_enable();
 				goto dont_update_pc;
-			} else {
-				/*
-				 * We fault an entry from the guest tlb to the
-				 * shadow host TLB
-				 */
-				kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb,
-								     NULL,
-								     NULL);
+			}
+			/*
+			 * We fault an entry from the guest tlb to the
+			 * shadow host TLB
+			 */
+			if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb,
+								 NULL, NULL)) {
+				kvm_err("%s: handling mapped seg tlb fault for %lx, index: %u, vcpu: %p, ASID: %#lx\n",
+					__func__, va, index, vcpu,
+					read_c0_entryhi());
+				er = EMULATE_FAIL;
+				preempt_enable();
+				goto done;
 			}
 		}
 	} else {
@@ -2633,8 +2644,13 @@ enum emulation_result kvm_mips_handle_tl
 			 * OK we have a Guest TLB entry, now inject it into the
 			 * shadow host TLB
 			 */
-			kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb, NULL,
-							     NULL);
+			if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu, tlb,
+								 NULL, NULL)) {
+				kvm_err("%s: handling mapped seg tlb fault for %lx, index: %u, vcpu: %p, ASID: %#lx\n",
+					__func__, va, index, vcpu,
+					read_c0_entryhi());
+				er = EMULATE_FAIL;
+			}
 		}
 	}
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/mips/kvm/tlb.c linux-libre-4.1.31-gnu/arch/mips/kvm/tlb.c
--- linux-libre-4.1.30-gnu/arch/mips/kvm/tlb.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/mips/kvm/tlb.c	2016-08-22 09:50:48.000000000 -0400
@@ -276,7 +276,7 @@ int kvm_mips_handle_kseg0_tlb_fault(unsi
 	}
 
 	gfn = (KVM_GUEST_CPHYSADDR(badvaddr) >> PAGE_SHIFT);
-	if (gfn >= kvm->arch.guest_pmap_npages) {
+	if ((gfn | 1) >= kvm->arch.guest_pmap_npages) {
 		kvm_err("%s: Invalid gfn: %#llx, BadVaddr: %#lx\n", __func__,
 			gfn, badvaddr);
 		kvm_mips_dump_host_tlbs();
@@ -361,25 +361,39 @@ int kvm_mips_handle_mapped_seg_tlb_fault
 	unsigned long entryhi = 0, entrylo0 = 0, entrylo1 = 0;
 	struct kvm *kvm = vcpu->kvm;
 	pfn_t pfn0, pfn1;
+	gfn_t gfn0, gfn1;
+	long tlb_lo[2];
 
-	if ((tlb->tlb_hi & VPN2_MASK) == 0) {
-		pfn0 = 0;
-		pfn1 = 0;
-	} else {
-		if (kvm_mips_map_page(kvm, mips3_tlbpfn_to_paddr(tlb->tlb_lo0)
-					   >> PAGE_SHIFT) < 0)
-			return -1;
+	tlb_lo[0] = tlb->tlb_lo0;
+	tlb_lo[1] = tlb->tlb_lo1;
 
-		if (kvm_mips_map_page(kvm, mips3_tlbpfn_to_paddr(tlb->tlb_lo1)
-					   >> PAGE_SHIFT) < 0)
-			return -1;
+	/*
+	 * The commpage address must not be mapped to anything else if the guest
+	 * TLB contains entries nearby, or commpage accesses will break.
+	 */
+	if (!((tlb->tlb_hi ^ KVM_GUEST_COMMPAGE_ADDR) &
+			VPN2_MASK & (PAGE_MASK << 1)))
+		tlb_lo[(KVM_GUEST_COMMPAGE_ADDR >> PAGE_SHIFT) & 1] = 0;
 
-		pfn0 = kvm->arch.guest_pmap[mips3_tlbpfn_to_paddr(tlb->tlb_lo0)
-					    >> PAGE_SHIFT];
-		pfn1 = kvm->arch.guest_pmap[mips3_tlbpfn_to_paddr(tlb->tlb_lo1)
-					    >> PAGE_SHIFT];
+	gfn0 = mips3_tlbpfn_to_paddr(tlb_lo[0]) >> PAGE_SHIFT;
+	gfn1 = mips3_tlbpfn_to_paddr(tlb_lo[1]) >> PAGE_SHIFT;
+	if (gfn0 >= kvm->arch.guest_pmap_npages ||
+	    gfn1 >= kvm->arch.guest_pmap_npages) {
+		kvm_err("%s: Invalid gfn: [%#llx, %#llx], EHi: %#lx\n",
+			__func__, gfn0, gfn1, tlb->tlb_hi);
+		kvm_mips_dump_guest_tlbs(vcpu);
+		return -1;
 	}
 
+	if (kvm_mips_map_page(kvm, gfn0) < 0)
+		return -1;
+
+	if (kvm_mips_map_page(kvm, gfn1) < 0)
+		return -1;
+
+	pfn0 = kvm->arch.guest_pmap[gfn0];
+	pfn1 = kvm->arch.guest_pmap[gfn1];
+
 	if (hpa0)
 		*hpa0 = pfn0 << PAGE_SHIFT;
 
@@ -391,9 +405,9 @@ int kvm_mips_handle_mapped_seg_tlb_fault
 					       kvm_mips_get_kernel_asid(vcpu) :
 					       kvm_mips_get_user_asid(vcpu));
 	entrylo0 = mips3_paddr_to_tlbpfn(pfn0 << PAGE_SHIFT) | (0x3 << 3) |
-		   (tlb->tlb_lo0 & MIPS3_PG_D) | (tlb->tlb_lo0 & MIPS3_PG_V);
+		   (tlb_lo[0] & MIPS3_PG_D) | (tlb_lo[0] & MIPS3_PG_V);
 	entrylo1 = mips3_paddr_to_tlbpfn(pfn1 << PAGE_SHIFT) | (0x3 << 3) |
-		   (tlb->tlb_lo1 & MIPS3_PG_D) | (tlb->tlb_lo1 & MIPS3_PG_V);
+		   (tlb_lo[1] & MIPS3_PG_D) | (tlb_lo[1] & MIPS3_PG_V);
 
 	kvm_debug("@ %#lx tlb_lo0: 0x%08lx tlb_lo1: 0x%08lx\n", vcpu->arch.pc,
 		  tlb->tlb_lo0, tlb->tlb_lo1);
@@ -794,10 +808,16 @@ uint32_t kvm_get_inst(uint32_t *opc, str
 				local_irq_restore(flags);
 				return KVM_INVALID_INST;
 			}
-			kvm_mips_handle_mapped_seg_tlb_fault(vcpu,
-							     &vcpu->arch.
-							     guest_tlb[index],
-							     NULL, NULL);
+			if (kvm_mips_handle_mapped_seg_tlb_fault(vcpu,
+						&vcpu->arch.guest_tlb[index],
+						NULL, NULL)) {
+				kvm_err("%s: handling mapped seg tlb fault failed for %p, index: %u, vcpu: %p, ASID: %#lx\n",
+					__func__, opc, index, vcpu,
+					read_c0_entryhi());
+				kvm_mips_dump_guest_tlbs(vcpu);
+				local_irq_restore(flags);
+				return KVM_INVALID_INST;
+			}
 			inst = *(opc);
 		}
 		local_irq_restore(flags);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/mips/mm/uasm-mips.c linux-libre-4.1.31-gnu/arch/mips/mm/uasm-mips.c
--- linux-libre-4.1.30-gnu/arch/mips/mm/uasm-mips.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/mips/mm/uasm-mips.c	2016-08-22 09:50:48.000000000 -0400
@@ -65,7 +65,7 @@ static struct insn insn_table[] = {
 #ifndef CONFIG_CPU_MIPSR6
 	{ insn_cache,  M(cache_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
 #else
-	{ insn_cache,  M6(cache_op, 0, 0, 0, cache6_op),  RS | RT | SIMM9 },
+	{ insn_cache,  M6(spec3_op, 0, 0, 0, cache6_op),  RS | RT | SIMM9 },
 #endif
 	{ insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
 	{ insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD },
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/powerpc/kernel/tm.S linux-libre-4.1.31-gnu/arch/powerpc/kernel/tm.S
--- linux-libre-4.1.30-gnu/arch/powerpc/kernel/tm.S	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/powerpc/kernel/tm.S	2016-08-22 09:50:48.000000000 -0400
@@ -110,17 +110,11 @@ _GLOBAL(tm_reclaim)
 	std	r3, STK_PARAM(R3)(r1)
 	SAVE_NVGPRS(r1)
 
-	/* We need to setup MSR for VSX register save instructions.  Here we
-	 * also clear the MSR RI since when we do the treclaim, we won't have a
-	 * valid kernel pointer for a while.  We clear RI here as it avoids
-	 * adding another mtmsr closer to the treclaim.  This makes the region
-	 * maked as non-recoverable wider than it needs to be but it saves on
-	 * inserting another mtmsrd later.
-	 */
+	/* We need to setup MSR for VSX register save instructions. */
 	mfmsr	r14
 	mr	r15, r14
 	ori	r15, r15, MSR_FP
-	li	r16, MSR_RI
+	li	r16, 0
 	ori	r16, r16, MSR_EE /* IRQs hard off */
 	andc	r15, r15, r16
 	oris	r15, r15, MSR_VEC@h
@@ -176,7 +170,17 @@ dont_backup_fp:
 1:	tdeqi   r6, 0
 	EMIT_BUG_ENTRY 1b,__FILE__,__LINE__,0
 
-	/* The moment we treclaim, ALL of our GPRs will switch
+	/* Clear MSR RI since we are about to change r1, EE is already off. */
+	li	r4, 0
+	mtmsrd	r4, 1
+
+	/*
+	 * BE CAREFUL HERE:
+	 * At this point we can't take an SLB miss since we have MSR_RI
+	 * off. Load only to/from the stack/paca which are in SLB bolted regions
+	 * until we turn MSR RI back on.
+	 *
+	 * The moment we treclaim, ALL of our GPRs will switch
 	 * to user register state.  (FPRs, CCR etc. also!)
 	 * Use an sprg and a tm_scratch in the PACA to shuffle.
 	 */
@@ -197,6 +201,11 @@ dont_backup_fp:
 
 	/* Store the PPR in r11 and reset to decent value */
 	std	r11, GPR11(r1)			/* Temporary stash */
+
+	/* Reset MSR RI so we can take SLB faults again */
+	li	r11, MSR_RI
+	mtmsrd	r11, 1
+
 	mfspr	r11, SPRN_PPR
 	HMT_MEDIUM
 
@@ -329,8 +338,6 @@ _GLOBAL(__tm_recheckpoint)
 	 */
 	subi	r7, r7, STACK_FRAME_OVERHEAD
 
-	SET_SCRATCH0(r1)
-
 	mfmsr	r6
 	/* R4 = original MSR to indicate whether thread used FP/Vector etc. */
 
@@ -397,11 +404,6 @@ restore_gprs:
 	ld	r5, THREAD_TM_DSCR(r3)
 	ld	r6, THREAD_TM_PPR(r3)
 
-	/* Clear the MSR RI since we are about to change R1.  EE is already off
-	 */
-	li	r4, 0
-	mtmsrd	r4, 1
-
 	REST_GPR(0, r7)				/* GPR0 */
 	REST_2GPRS(2, r7)			/* GPR2-3 */
 	REST_GPR(4, r7)				/* GPR4 */
@@ -439,10 +441,34 @@ restore_gprs:
 	ld	r6, _CCR(r7)
 	mtcr    r6
 
-	REST_GPR(1, r7)				/* GPR1 */
-	REST_GPR(5, r7)				/* GPR5-7 */
 	REST_GPR(6, r7)
-	ld	r7, GPR7(r7)
+
+	/*
+	 * Store r1 and r5 on the stack so that we can access them
+	 * after we clear MSR RI.
+	 */
+
+	REST_GPR(5, r7)
+	std	r5, -8(r1)
+	ld	r5, GPR1(r7)
+	std	r5, -16(r1)
+
+	REST_GPR(7, r7)
+
+	/* Clear MSR RI since we are about to change r1. EE is already off */
+	li	r5, 0
+	mtmsrd	r5, 1
+
+	/*
+	 * BE CAREFUL HERE:
+	 * At this point we can't take an SLB miss since we have MSR_RI
+	 * off. Load only to/from the stack/paca which are in SLB bolted regions
+	 * until we turn MSR RI back on.
+	 */
+
+	SET_SCRATCH0(r1)
+	ld	r5, -8(r1)
+	ld	r1, -16(r1)
 
 	/* Commit register state as checkpointed state: */
 	TRECHKPT
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S linux-libre-4.1.31-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S
--- linux-libre-4.1.30-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2016-08-22 09:50:48.000000000 -0400
@@ -570,112 +570,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
-	b	skip_tm
-END_FTR_SECTION_IFCLR(CPU_FTR_TM)
-
-	/* Turn on TM/FP/VSX/VMX so we can restore them. */
-	mfmsr	r5
-	li	r6, MSR_TM >> 32
-	sldi	r6, r6, 32
-	or	r5, r5, r6
-	ori	r5, r5, MSR_FP
-	oris	r5, r5, (MSR_VEC | MSR_VSX)@h
-	mtmsrd	r5
-
-	/*
-	 * The user may change these outside of a transaction, so they must
-	 * always be context switched.
-	 */
-	ld	r5, VCPU_TFHAR(r4)
-	ld	r6, VCPU_TFIAR(r4)
-	ld	r7, VCPU_TEXASR(r4)
-	mtspr	SPRN_TFHAR, r5
-	mtspr	SPRN_TFIAR, r6
-	mtspr	SPRN_TEXASR, r7
-
-	ld	r5, VCPU_MSR(r4)
-	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
-	beq	skip_tm	/* TM not active in guest */
-
-	/* Make sure the failure summary is set, otherwise we'll program check
-	 * when we trechkpt.  It's possible that this might have been not set
-	 * on a kvmppc_set_one_reg() call but we shouldn't let this crash the
-	 * host.
-	 */
-	oris	r7, r7, (TEXASR_FS)@h
-	mtspr	SPRN_TEXASR, r7
-
-	/*
-	 * We need to load up the checkpointed state for the guest.
-	 * We need to do this early as it will blow away any GPRs, VSRs and
-	 * some SPRs.
-	 */
-
-	mr	r31, r4
-	addi	r3, r31, VCPU_FPRS_TM
-	bl	load_fp_state
-	addi	r3, r31, VCPU_VRS_TM
-	bl	load_vr_state
-	mr	r4, r31
-	lwz	r7, VCPU_VRSAVE_TM(r4)
-	mtspr	SPRN_VRSAVE, r7
-
-	ld	r5, VCPU_LR_TM(r4)
-	lwz	r6, VCPU_CR_TM(r4)
-	ld	r7, VCPU_CTR_TM(r4)
-	ld	r8, VCPU_AMR_TM(r4)
-	ld	r9, VCPU_TAR_TM(r4)
-	mtlr	r5
-	mtcr	r6
-	mtctr	r7
-	mtspr	SPRN_AMR, r8
-	mtspr	SPRN_TAR, r9
-
-	/*
-	 * Load up PPR and DSCR values but don't put them in the actual SPRs
-	 * till the last moment to avoid running with userspace PPR and DSCR for
-	 * too long.
-	 */
-	ld	r29, VCPU_DSCR_TM(r4)
-	ld	r30, VCPU_PPR_TM(r4)
-
-	std	r2, PACATMSCRATCH(r13) /* Save TOC */
-
-	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
-	li	r5, 0
-	mtmsrd	r5, 1
-
-	/* Load GPRs r0-r28 */
-	reg = 0
-	.rept	29
-	ld	reg, VCPU_GPRS_TM(reg)(r31)
-	reg = reg + 1
-	.endr
-
-	mtspr	SPRN_DSCR, r29
-	mtspr	SPRN_PPR, r30
-
-	/* Load final GPRs */
-	ld	29, VCPU_GPRS_TM(29)(r31)
-	ld	30, VCPU_GPRS_TM(30)(r31)
-	ld	31, VCPU_GPRS_TM(31)(r31)
-
-	/* TM checkpointed state is now setup.  All GPRs are now volatile. */
-	TRECHKPT
-
-	/* Now let's get back the state we need. */
-	HMT_MEDIUM
-	GET_PACA(r13)
-	ld	r29, HSTATE_DSCR(r13)
-	mtspr	SPRN_DSCR, r29
-	ld	r4, HSTATE_KVM_VCPU(r13)
-	ld	r1, HSTATE_HOST_R1(r13)
-	ld	r2, PACATMSCRATCH(r13)
-
-	/* Set the MSR RI since we have our registers back. */
-	li	r5, MSR_RI
-	mtmsrd	r5, 1
-skip_tm:
+	bl	kvmppc_restore_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
 #endif
 
 	/* Load guest PMU registers */
@@ -756,12 +652,6 @@ BEGIN_FTR_SECTION
 	/* Skip next section on POWER7 */
 	b	8f
 END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
-	/* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
-	mfmsr	r8
-	li	r0, 1
-	rldimi	r8, r0, MSR_TM_LG, 63-MSR_TM_LG
-	mtmsrd	r8
-
 	/* Load up POWER8-specific registers */
 	ld	r5, VCPU_IAMR(r4)
 	lwz	r6, VCPU_PSPB(r4)
@@ -1339,106 +1229,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
-	b	2f
-END_FTR_SECTION_IFCLR(CPU_FTR_TM)
-	/* Turn on TM. */
-	mfmsr	r8
-	li	r0, 1
-	rldimi	r8, r0, MSR_TM_LG, 63-MSR_TM_LG
-	mtmsrd	r8
-
-	ld	r5, VCPU_MSR(r9)
-	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
-	beq	1f	/* TM not active in guest. */
-
-	li	r3, TM_CAUSE_KVM_RESCHED
-
-	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
-	li	r5, 0
-	mtmsrd	r5, 1
-
-	/* All GPRs are volatile at this point. */
-	TRECLAIM(R3)
-
-	/* Temporarily store r13 and r9 so we have some regs to play with */
-	SET_SCRATCH0(r13)
-	GET_PACA(r13)
-	std	r9, PACATMSCRATCH(r13)
-	ld	r9, HSTATE_KVM_VCPU(r13)
-
-	/* Get a few more GPRs free. */
-	std	r29, VCPU_GPRS_TM(29)(r9)
-	std	r30, VCPU_GPRS_TM(30)(r9)
-	std	r31, VCPU_GPRS_TM(31)(r9)
-
-	/* Save away PPR and DSCR soon so don't run with user values. */
-	mfspr	r31, SPRN_PPR
-	HMT_MEDIUM
-	mfspr	r30, SPRN_DSCR
-	ld	r29, HSTATE_DSCR(r13)
-	mtspr	SPRN_DSCR, r29
-
-	/* Save all but r9, r13 & r29-r31 */
-	reg = 0
-	.rept	29
-	.if (reg != 9) && (reg != 13)
-	std	reg, VCPU_GPRS_TM(reg)(r9)
-	.endif
-	reg = reg + 1
-	.endr
-	/* ... now save r13 */
-	GET_SCRATCH0(r4)
-	std	r4, VCPU_GPRS_TM(13)(r9)
-	/* ... and save r9 */
-	ld	r4, PACATMSCRATCH(r13)
-	std	r4, VCPU_GPRS_TM(9)(r9)
-
-	/* Reload stack pointer and TOC. */
-	ld	r1, HSTATE_HOST_R1(r13)
-	ld	r2, PACATOC(r13)
-
-	/* Set MSR RI now we have r1 and r13 back. */
-	li	r5, MSR_RI
-	mtmsrd	r5, 1
-
-	/* Save away checkpinted SPRs. */
-	std	r31, VCPU_PPR_TM(r9)
-	std	r30, VCPU_DSCR_TM(r9)
-	mflr	r5
-	mfcr	r6
-	mfctr	r7
-	mfspr	r8, SPRN_AMR
-	mfspr	r10, SPRN_TAR
-	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)
-
-	/* Restore r12 as trap number. */
-	lwz	r12, VCPU_TRAP(r9)
-
-	/* Save FP/VSX. */
-	addi	r3, r9, VCPU_FPRS_TM
-	bl	store_fp_state
-	addi	r3, r9, VCPU_VRS_TM
-	bl	store_vr_state
-	mfspr	r6, SPRN_VRSAVE
-	stw	r6, VCPU_VRSAVE_TM(r9)
-1:
-	/*
-	 * We need to save these SPRs after the treclaim so that the software
-	 * error code is recorded correctly in the TEXASR.  Also the user may
-	 * change these outside of a transaction, so they must always be
-	 * context switched.
-	 */
-	mfspr	r5, SPRN_TFHAR
-	mfspr	r6, SPRN_TFIAR
-	mfspr	r7, SPRN_TEXASR
-	std	r5, VCPU_TFHAR(r9)
-	std	r6, VCPU_TFIAR(r9)
-	std	r7, VCPU_TEXASR(r9)
-2:
+	bl	kvmppc_save_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
 #endif
 
 	/* Increment yield count if they have a VPA */
@@ -2139,6 +1931,13 @@ _GLOBAL(kvmppc_h_cede)		/* r3 = vcpu poi
 	/* save FP state */
 	bl	kvmppc_save_fp
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+BEGIN_FTR_SECTION
+	ld	r9, HSTATE_KVM_VCPU(r13)
+	bl	kvmppc_save_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
+#endif
+
 	/*
 	 * Set DEC to the smaller of DEC and HDEC, so that we wake
 	 * no later than the end of our timeslice (HDEC interrupts
@@ -2215,6 +2014,12 @@ kvm_end_cede:
 	bl	kvmhv_accumulate_time
 #endif
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+BEGIN_FTR_SECTION
+	bl	kvmppc_restore_tm
+END_FTR_SECTION_IFSET(CPU_FTR_TM)
+#endif
+
 	/* load up FP state */
 	bl	kvmppc_load_fp
 
@@ -2514,6 +2319,239 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	mr	r4,r31
 	blr
 
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+/*
+ * Save transactional state and TM-related registers.
+ * Called with r9 pointing to the vcpu struct.
+ * This can modify all checkpointed registers, but
+ * restores r1, r2 and r9 (vcpu pointer) before exit.
+ */
+kvmppc_save_tm:
+	mflr	r0
+	std	r0, PPC_LR_STKOFF(r1)
+
+	/* Turn on TM. */
+	mfmsr	r8
+	li	r0, 1
+	rldimi	r8, r0, MSR_TM_LG, 63-MSR_TM_LG
+	mtmsrd	r8
+
+	ld	r5, VCPU_MSR(r9)
+	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
+	beq	1f	/* TM not active in guest. */
+
+	std	r1, HSTATE_HOST_R1(r13)
+	li	r3, TM_CAUSE_KVM_RESCHED
+
+	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
+	li	r5, 0
+	mtmsrd	r5, 1
+
+	/* All GPRs are volatile at this point. */
+	TRECLAIM(R3)
+
+	/* Temporarily store r13 and r9 so we have some regs to play with */
+	SET_SCRATCH0(r13)
+	GET_PACA(r13)
+	std	r9, PACATMSCRATCH(r13)
+	ld	r9, HSTATE_KVM_VCPU(r13)
+
+	/* Get a few more GPRs free. */
+	std	r29, VCPU_GPRS_TM(29)(r9)
+	std	r30, VCPU_GPRS_TM(30)(r9)
+	std	r31, VCPU_GPRS_TM(31)(r9)
+
+	/* Save away PPR and DSCR soon so don't run with user values. */
+	mfspr	r31, SPRN_PPR
+	HMT_MEDIUM
+	mfspr	r30, SPRN_DSCR
+	ld	r29, HSTATE_DSCR(r13)
+	mtspr	SPRN_DSCR, r29
+
+	/* Save all but r9, r13 & r29-r31 */
+	reg = 0
+	.rept	29
+	.if (reg != 9) && (reg != 13)
+	std	reg, VCPU_GPRS_TM(reg)(r9)
+	.endif
+	reg = reg + 1
+	.endr
+	/* ... now save r13 */
+	GET_SCRATCH0(r4)
+	std	r4, VCPU_GPRS_TM(13)(r9)
+	/* ... and save r9 */
+	ld	r4, PACATMSCRATCH(r13)
+	std	r4, VCPU_GPRS_TM(9)(r9)
+
+	/* Reload stack pointer and TOC. */
+	ld	r1, HSTATE_HOST_R1(r13)
+	ld	r2, PACATOC(r13)
+
+	/* Set MSR RI now we have r1 and r13 back. */
+	li	r5, MSR_RI
+	mtmsrd	r5, 1
+
+	/* Save away checkpinted SPRs. */
+	std	r31, VCPU_PPR_TM(r9)
+	std	r30, VCPU_DSCR_TM(r9)
+	mflr	r5
+	mfcr	r6
+	mfctr	r7
+	mfspr	r8, SPRN_AMR
+	mfspr	r10, SPRN_TAR
+	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)
+
+	/* Restore r12 as trap number. */
+	lwz	r12, VCPU_TRAP(r9)
+
+	/* Save FP/VSX. */
+	addi	r3, r9, VCPU_FPRS_TM
+	bl	store_fp_state
+	addi	r3, r9, VCPU_VRS_TM
+	bl	store_vr_state
+	mfspr	r6, SPRN_VRSAVE
+	stw	r6, VCPU_VRSAVE_TM(r9)
+1:
+	/*
+	 * We need to save these SPRs after the treclaim so that the software
+	 * error code is recorded correctly in the TEXASR.  Also the user may
+	 * change these outside of a transaction, so they must always be
+	 * context switched.
+	 */
+	mfspr	r5, SPRN_TFHAR
+	mfspr	r6, SPRN_TFIAR
+	mfspr	r7, SPRN_TEXASR
+	std	r5, VCPU_TFHAR(r9)
+	std	r6, VCPU_TFIAR(r9)
+	std	r7, VCPU_TEXASR(r9)
+
+	ld	r0, PPC_LR_STKOFF(r1)
+	mtlr	r0
+	blr
+
+/*
+ * Restore transactional state and TM-related registers.
+ * Called with r4 pointing to the vcpu struct.
+ * This potentially modifies all checkpointed registers.
+ * It restores r1, r2, r4 from the PACA.
+ */
+kvmppc_restore_tm:
+	mflr	r0
+	std	r0, PPC_LR_STKOFF(r1)
+
+	/* Turn on TM/FP/VSX/VMX so we can restore them. */
+	mfmsr	r5
+	li	r6, MSR_TM >> 32
+	sldi	r6, r6, 32
+	or	r5, r5, r6
+	ori	r5, r5, MSR_FP
+	oris	r5, r5, (MSR_VEC | MSR_VSX)@h
+	mtmsrd	r5
+
+	/*
+	 * The user may change these outside of a transaction, so they must
+	 * always be context switched.
+	 */
+	ld	r5, VCPU_TFHAR(r4)
+	ld	r6, VCPU_TFIAR(r4)
+	ld	r7, VCPU_TEXASR(r4)
+	mtspr	SPRN_TFHAR, r5
+	mtspr	SPRN_TFIAR, r6
+	mtspr	SPRN_TEXASR, r7
+
+	ld	r5, VCPU_MSR(r4)
+	rldicl. r5, r5, 64 - MSR_TS_S_LG, 62
+	beqlr		/* TM not active in guest */
+	std	r1, HSTATE_HOST_R1(r13)
+
+	/* Make sure the failure summary is set, otherwise we'll program check
+	 * when we trechkpt.  It's possible that this might have been not set
+	 * on a kvmppc_set_one_reg() call but we shouldn't let this crash the
+	 * host.
+	 */
+	oris	r7, r7, (TEXASR_FS)@h
+	mtspr	SPRN_TEXASR, r7
+
+	/*
+	 * We need to load up the checkpointed state for the guest.
+	 * We need to do this early as it will blow away any GPRs, VSRs and
+	 * some SPRs.
+	 */
+
+	mr	r31, r4
+	addi	r3, r31, VCPU_FPRS_TM
+	bl	load_fp_state
+	addi	r3, r31, VCPU_VRS_TM
+	bl	load_vr_state
+	mr	r4, r31
+	lwz	r7, VCPU_VRSAVE_TM(r4)
+	mtspr	SPRN_VRSAVE, r7
+
+	ld	r5, VCPU_LR_TM(r4)
+	lwz	r6, VCPU_CR_TM(r4)
+	ld	r7, VCPU_CTR_TM(r4)
+	ld	r8, VCPU_AMR_TM(r4)
+	ld	r9, VCPU_TAR_TM(r4)
+	mtlr	r5
+	mtcr	r6
+	mtctr	r7
+	mtspr	SPRN_AMR, r8
+	mtspr	SPRN_TAR, r9
+
+	/*
+	 * Load up PPR and DSCR values but don't put them in the actual SPRs
+	 * till the last moment to avoid running with userspace PPR and DSCR for
+	 * too long.
+	 */
+	ld	r29, VCPU_DSCR_TM(r4)
+	ld	r30, VCPU_PPR_TM(r4)
+
+	std	r2, PACATMSCRATCH(r13) /* Save TOC */
+
+	/* Clear the MSR RI since r1, r13 are all going to be foobar. */
+	li	r5, 0
+	mtmsrd	r5, 1
+
+	/* Load GPRs r0-r28 */
+	reg = 0
+	.rept	29
+	ld	reg, VCPU_GPRS_TM(reg)(r31)
+	reg = reg + 1
+	.endr
+
+	mtspr	SPRN_DSCR, r29
+	mtspr	SPRN_PPR, r30
+
+	/* Load final GPRs */
+	ld	29, VCPU_GPRS_TM(29)(r31)
+	ld	30, VCPU_GPRS_TM(30)(r31)
+	ld	31, VCPU_GPRS_TM(31)(r31)
+
+	/* TM checkpointed state is now setup.  All GPRs are now volatile. */
+	TRECHKPT
+
+	/* Now let's get back the state we need. */
+	HMT_MEDIUM
+	GET_PACA(r13)
+	ld	r29, HSTATE_DSCR(r13)
+	mtspr	SPRN_DSCR, r29
+	ld	r4, HSTATE_KVM_VCPU(r13)
+	ld	r1, HSTATE_HOST_R1(r13)
+	ld	r2, PACATMSCRATCH(r13)
+
+	/* Set the MSR RI since we have our registers back. */
+	li	r5, MSR_RI
+	mtmsrd	r5, 1
+
+	ld	r0, PPC_LR_STKOFF(r1)
+	mtlr	r0
+	blr
+#endif
+
 /*
  * We come here if we get any exception or interrupt while we are
  * executing host real mode code while in guest MMU context.
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/powerpc/platforms/pseries/iommu.c linux-libre-4.1.31-gnu/arch/powerpc/platforms/pseries/iommu.c
--- linux-libre-4.1.30-gnu/arch/powerpc/platforms/pseries/iommu.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/powerpc/platforms/pseries/iommu.c	2016-08-22 09:50:48.000000000 -0400
@@ -825,7 +825,8 @@ machine_arch_initcall(pseries, find_exis
 static int query_ddw(struct pci_dev *dev, const u32 *ddw_avail,
 			struct ddw_query_response *query)
 {
-	struct eeh_dev *edev;
+	struct device_node *dn;
+	struct pci_dn *pdn;
 	u32 cfg_addr;
 	u64 buid;
 	int ret;
@@ -836,11 +837,10 @@ static int query_ddw(struct pci_dev *dev
 	 * Retrieve them from the pci device, not the node with the
 	 * dma-window property
 	 */
-	edev = pci_dev_to_eeh_dev(dev);
-	cfg_addr = edev->config_addr;
-	if (edev->pe_config_addr)
-		cfg_addr = edev->pe_config_addr;
-	buid = edev->phb->buid;
+	dn = pci_device_to_OF_node(dev);
+	pdn = PCI_DN(dn);
+	buid = pdn->phb->buid;
+	cfg_addr = ((pdn->busno << 16) | (pdn->devfn << 8));
 
 	ret = rtas_call(ddw_avail[0], 3, 5, (u32 *)query,
 		  cfg_addr, BUID_HI(buid), BUID_LO(buid));
@@ -854,7 +854,8 @@ static int create_ddw(struct pci_dev *de
 			struct ddw_create_response *create, int page_shift,
 			int window_shift)
 {
-	struct eeh_dev *edev;
+	struct device_node *dn;
+	struct pci_dn *pdn;
 	u32 cfg_addr;
 	u64 buid;
 	int ret;
@@ -865,11 +866,10 @@ static int create_ddw(struct pci_dev *de
 	 * Retrieve them from the pci device, not the node with the
 	 * dma-window property
 	 */
-	edev = pci_dev_to_eeh_dev(dev);
-	cfg_addr = edev->config_addr;
-	if (edev->pe_config_addr)
-		cfg_addr = edev->pe_config_addr;
-	buid = edev->phb->buid;
+	dn = pci_device_to_OF_node(dev);
+	pdn = PCI_DN(dn);
+	buid = pdn->phb->buid;
+	cfg_addr = ((pdn->busno << 16) | (pdn->devfn << 8));
 
 	do {
 		/* extra outputs are LIOBN and dma-addr (hi, lo) */
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/s390/mm/pgtable.c linux-libre-4.1.31-gnu/arch/s390/mm/pgtable.c
--- linux-libre-4.1.30-gnu/arch/s390/mm/pgtable.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/s390/mm/pgtable.c	2016-08-22 09:50:48.000000000 -0400
@@ -173,7 +173,7 @@ EXPORT_SYMBOL_GPL(gmap_alloc);
 static void gmap_flush_tlb(struct gmap *gmap)
 {
 	if (MACHINE_HAS_IDTE)
-		__tlb_flush_asce(gmap->mm, gmap->asce);
+		__tlb_flush_idte(gmap->asce);
 	else
 		__tlb_flush_global();
 }
@@ -212,7 +212,7 @@ void gmap_free(struct gmap *gmap)
 
 	/* Flush tlb. */
 	if (MACHINE_HAS_IDTE)
-		__tlb_flush_asce(gmap->mm, gmap->asce);
+		__tlb_flush_idte(gmap->asce);
 	else
 		__tlb_flush_global();
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/x86/kernel/cpu/perf_event_intel.c linux-libre-4.1.31-gnu/arch/x86/kernel/cpu/perf_event_intel.c
--- linux-libre-4.1.30-gnu/arch/x86/kernel/cpu/perf_event_intel.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/x86/kernel/cpu/perf_event_intel.c	2016-08-22 09:50:48.000000000 -0400
@@ -3332,7 +3332,7 @@ __init int intel_pmu_init(void)
 				c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
 			}
 			c->idxmsk64 &=
-				~(~0UL << (INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed));
+				~(~0ULL << (INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed));
 			c->weight = hweight64(c->idxmsk64);
 		}
 	}
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/x86/kvm/vmx.c linux-libre-4.1.31-gnu/arch/x86/kvm/vmx.c
--- linux-libre-4.1.30-gnu/arch/x86/kvm/vmx.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/x86/kvm/vmx.c	2016-08-22 09:50:48.000000000 -0400
@@ -7770,6 +7770,7 @@ static int vmx_handle_exit(struct kvm_vc
 	if ((vectoring_info & VECTORING_INFO_VALID_MASK) &&
 			(exit_reason != EXIT_REASON_EXCEPTION_NMI &&
 			exit_reason != EXIT_REASON_EPT_VIOLATION &&
+			exit_reason != EXIT_REASON_PML_FULL &&
 			exit_reason != EXIT_REASON_TASK_SWITCH)) {
 		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_DELIVERY_EV;
@@ -8377,6 +8378,22 @@ static void vmx_load_vmcs01(struct kvm_v
 	put_cpu();
 }
 
+/*
+ * Ensure that the current vmcs of the logical processor is the
+ * vmcs01 of the vcpu before calling free_nested().
+ */
+static void vmx_free_vcpu_nested(struct kvm_vcpu *vcpu)
+{
+       struct vcpu_vmx *vmx = to_vmx(vcpu);
+       int r;
+
+       r = vcpu_load(vcpu);
+       BUG_ON(r);
+       vmx_load_vmcs01(vcpu);
+       free_nested(vmx);
+       vcpu_put(vcpu);
+}
+
 static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -8385,8 +8402,7 @@ static void vmx_free_vcpu(struct kvm_vcp
 		vmx_disable_pml(vmx);
 	free_vpid(vmx);
 	leave_guest_mode(vcpu);
-	vmx_load_vmcs01(vcpu);
-	free_nested(vmx);
+	vmx_free_vcpu_nested(vcpu);
 	free_loaded_vmcs(vmx->loaded_vmcs);
 	kfree(vmx->guest_msrs);
 	kvm_vcpu_uninit(vcpu);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/arch/x86/syscalls/syscall_32.tbl linux-libre-4.1.31-gnu/arch/x86/syscalls/syscall_32.tbl
--- linux-libre-4.1.30-gnu/arch/x86/syscalls/syscall_32.tbl	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/arch/x86/syscalls/syscall_32.tbl	2016-08-22 09:50:48.000000000 -0400
@@ -294,7 +294,7 @@
 # 285 sys_setaltroot
 286	i386	add_key			sys_add_key
 287	i386	request_key		sys_request_key
-288	i386	keyctl			sys_keyctl
+288	i386	keyctl			sys_keyctl			compat_sys_keyctl
 289	i386	ioprio_set		sys_ioprio_set
 290	i386	ioprio_get		sys_ioprio_get
 291	i386	inotify_init		sys_inotify_init
diff -druNp --no-dereference linux-libre-4.1.30-gnu/block/genhd.c linux-libre-4.1.31-gnu/block/genhd.c
--- linux-libre-4.1.30-gnu/block/genhd.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/block/genhd.c	2016-08-22 09:50:48.000000000 -0400
@@ -828,6 +828,7 @@ static void disk_seqf_stop(struct seq_fi
 	if (iter) {
 		class_dev_iter_exit(iter);
 		kfree(iter);
+		seqf->private = NULL;
 	}
 }
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/CREDITS linux-libre-4.1.31-gnu/CREDITS
--- linux-libre-4.1.30-gnu/CREDITS	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/CREDITS	2016-08-22 09:50:48.000000000 -0400
@@ -644,6 +644,7 @@ D: Configure, Menuconfig, xconfig
 
 N: Mauro Carvalho Chehab
 E: m.chehab@samsung.org
+E: mchehab@osg.samsung.com
 E: mchehab@infradead.org
 D: Media subsystem (V4L/DVB) drivers and core
 D: EDAC drivers and EDAC 3.0 core rework
diff -druNp --no-dereference linux-libre-4.1.30-gnu/crypto/gcm.c linux-libre-4.1.31-gnu/crypto/gcm.c
--- linux-libre-4.1.30-gnu/crypto/gcm.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/crypto/gcm.c	2016-08-22 09:50:48.000000000 -0400
@@ -716,7 +716,9 @@ static struct crypto_instance *crypto_gc
 
 	ghash_alg = crypto_find_alg(ghash_name, &crypto_ahash_type,
 				    CRYPTO_ALG_TYPE_HASH,
-				    CRYPTO_ALG_TYPE_AHASH_MASK);
+				    CRYPTO_ALG_TYPE_AHASH_MASK |
+				    crypto_requires_sync(algt->type,
+							 algt->mask));
 	if (IS_ERR(ghash_alg))
 		return ERR_CAST(ghash_alg);
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/crypto/scatterwalk.c linux-libre-4.1.31-gnu/crypto/scatterwalk.c
--- linux-libre-4.1.30-gnu/crypto/scatterwalk.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/crypto/scatterwalk.c	2016-08-22 09:50:48.000000000 -0400
@@ -68,7 +68,8 @@ static void scatterwalk_pagedone(struct
 
 void scatterwalk_done(struct scatter_walk *walk, int out, int more)
 {
-	if (!(scatterwalk_pagelen(walk) & (PAGE_SIZE - 1)) || !more)
+	if (!more || walk->offset >= walk->sg->offset + walk->sg->length ||
+	    !(walk->offset & (PAGE_SIZE - 1)))
 		scatterwalk_pagedone(walk, out, more);
 }
 EXPORT_SYMBOL_GPL(scatterwalk_done);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935 linux-libre-4.1.31-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
--- linux-libre-4.1.30-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935	2016-08-22 09:50:48.000000000 -0400
@@ -1,4 +1,4 @@
-What		/sys/bus/iio/devices/iio:deviceX/in_proximity_raw
+What		/sys/bus/iio/devices/iio:deviceX/in_proximity_input
 Date:		March 2014
 KernelVersion:	3.15
 Contact:	Matt Ranostay <mranostay@gmail.com>
diff -druNp --no-dereference linux-libre-4.1.30-gnu/Documentation/module-signing.txt linux-libre-4.1.31-gnu/Documentation/module-signing.txt
--- linux-libre-4.1.30-gnu/Documentation/module-signing.txt	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/Documentation/module-signing.txt	2016-08-22 09:50:48.000000000 -0400
@@ -239,3 +239,9 @@ Since the private key is used to sign mo
 the private key to sign modules and compromise the operating system.  The
 private key must be either destroyed or moved to a secure location and not kept
 in the root node of the kernel source tree.
+
+If you use the same private key to sign modules for multiple kernel
+configurations, you must ensure that the module version information is
+sufficient to prevent loading a module into a different kernel.  Either
+set CONFIG_MODVERSIONS=y or ensure that each configuration has a different
+kernel release string by changing EXTRAVERSION or CONFIG_LOCALVERSION.
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/bluetooth/ath3k.c linux-libre-4.1.31-gnu/drivers/bluetooth/ath3k.c
--- linux-libre-4.1.30-gnu/drivers/bluetooth/ath3k.c	2016-08-10 02:02:03.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/bluetooth/ath3k.c	2016-08-23 04:01:13.000000000 -0400
@@ -122,6 +122,8 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x13d3, 0x3432) },
 	{ USB_DEVICE(0x13d3, 0x3472) },
 	{ USB_DEVICE(0x13d3, 0x3474) },
+	{ USB_DEVICE(0x13d3, 0x3487) },
+	{ USB_DEVICE(0x13d3, 0x3490) },
 
 	/* Atheros AR5BBU12 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xE02C) },
@@ -188,6 +190,8 @@ static const struct usb_device_id ath3k_
 	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU22 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/bluetooth/btusb.c linux-libre-4.1.31-gnu/drivers/bluetooth/btusb.c
--- linux-libre-4.1.30-gnu/drivers/bluetooth/btusb.c	2016-08-10 02:02:17.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/bluetooth/btusb.c	2016-08-23 04:01:26.000000000 -0400
@@ -224,6 +224,8 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 
 	/* Atheros AR5BBU12 with sflash firmware */
 	{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpio/gpio-intel-mid.c linux-libre-4.1.31-gnu/drivers/gpio/gpio-intel-mid.c
--- linux-libre-4.1.30-gnu/drivers/gpio/gpio-intel-mid.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpio/gpio-intel-mid.c	2016-08-22 09:50:48.000000000 -0400
@@ -17,7 +17,6 @@
  * Moorestown platform Langwell chip.
  * Medfield platform Penwell chip.
  * Clovertrail platform Cloverview chip.
- * Merrifield platform Tangier chip.
  */
 
 #include <linux/module.h>
@@ -64,10 +63,6 @@ enum GPIO_REG {
 /* intel_mid gpio driver data */
 struct intel_mid_gpio_ddata {
 	u16 ngpio;		/* number of gpio pins */
-	u32 gplr_offset;	/* offset of first GPLR register from base */
-	u32 flis_base;		/* base address of FLIS registers */
-	u32 flis_len;		/* length of FLIS registers */
-	u32 (*get_flis_offset)(int gpio);
 	u32 chip_irq_type;	/* chip interrupt type */
 };
 
@@ -257,15 +252,6 @@ static const struct intel_mid_gpio_ddata
 	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
 };
 
-static const struct intel_mid_gpio_ddata gpio_tangier = {
-	.ngpio = 192,
-	.gplr_offset = 4,
-	.flis_base = 0xff0c0000,
-	.flis_len = 0x8000,
-	.get_flis_offset = NULL,
-	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
-};
-
 static const struct pci_device_id intel_gpio_ids[] = {
 	{
 		/* Lincroft */
@@ -292,11 +278,6 @@ static const struct pci_device_id intel_
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7),
 		.driver_data = (kernel_ulong_t)&gpio_cloverview_core,
 	},
-	{
-		/* Tangier */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1199),
-		.driver_data = (kernel_ulong_t)&gpio_tangier,
-	},
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, intel_gpio_ids);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpio/gpio-pca953x.c linux-libre-4.1.31-gnu/drivers/gpio/gpio-pca953x.c
--- linux-libre-4.1.30-gnu/drivers/gpio/gpio-pca953x.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpio/gpio-pca953x.c	2016-08-22 09:50:48.000000000 -0400
@@ -76,7 +76,7 @@ MODULE_DEVICE_TABLE(i2c, pca953x_id);
 #define MAX_BANK 5
 #define BANK_SZ 8
 
-#define NBANK(chip) (chip->gpio_chip.ngpio / BANK_SZ)
+#define NBANK(chip) DIV_ROUND_UP(chip->gpio_chip.ngpio, BANK_SZ)
 
 struct pca953x_chip {
 	unsigned gpio_start;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/i915/intel_display.c linux-libre-4.1.31-gnu/drivers/gpu/drm/i915/intel_display.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/i915/intel_display.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/i915/intel_display.c	2016-08-22 09:50:48.000000000 -0400
@@ -7129,14 +7129,12 @@ static void ironlake_init_pch_refclk(str
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *encoder;
-	int i;
 	u32 val, final;
 	bool has_lvds = false;
 	bool has_cpu_edp = false;
 	bool has_panel = false;
 	bool has_ck505 = false;
 	bool can_ssc = false;
-	bool using_ssc_source = false;
 
 	/* We need to take the global config into account */
 	for_each_intel_encoder(dev, encoder) {
@@ -7163,22 +7161,8 @@ static void ironlake_init_pch_refclk(str
 		can_ssc = true;
 	}
 
-	/* Check if any DPLLs are using the SSC source */
-	for (i = 0; i < dev_priv->num_shared_dpll; i++) {
-		u32 temp = I915_READ(PCH_DPLL(i));
-
-		if (!(temp & DPLL_VCO_ENABLE))
-			continue;
-
-		if ((temp & PLL_REF_INPUT_MASK) ==
-		    PLLB_REF_INPUT_SPREADSPECTRUMIN) {
-			using_ssc_source = true;
-			break;
-		}
-	}
-
-	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d using_ssc_source %d\n",
-		      has_panel, has_lvds, has_ck505, using_ssc_source);
+	DRM_DEBUG_KMS("has_panel %d has_lvds %d has_ck505 %d\n",
+		      has_panel, has_lvds, has_ck505);
 
 	/* Ironlake: try to setup display ref clock before DPLL
 	 * enabling. This is only under driver's control after
@@ -7215,9 +7199,9 @@ static void ironlake_init_pch_refclk(str
 				final |= DREF_CPU_SOURCE_OUTPUT_NONSPREAD;
 		} else
 			final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
-	} else if (using_ssc_source) {
-		final |= DREF_SSC_SOURCE_ENABLE;
-		final |= DREF_SSC1_ENABLE;
+	} else {
+		final |= DREF_SSC_SOURCE_DISABLE;
+		final |= DREF_CPU_SOURCE_OUTPUT_DISABLE;
 	}
 
 	if (final == val)
@@ -7263,7 +7247,7 @@ static void ironlake_init_pch_refclk(str
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 	} else {
-		DRM_DEBUG_KMS("Disabling CPU source output\n");
+		DRM_DEBUG_KMS("Disabling SSC entirely\n");
 
 		val &= ~DREF_CPU_SOURCE_OUTPUT_MASK;
 
@@ -7274,20 +7258,16 @@ static void ironlake_init_pch_refclk(str
 		POSTING_READ(PCH_DREF_CONTROL);
 		udelay(200);
 
-		if (!using_ssc_source) {
-			DRM_DEBUG_KMS("Disabling SSC source\n");
-
-			/* Turn off the SSC source */
-			val &= ~DREF_SSC_SOURCE_MASK;
-			val |= DREF_SSC_SOURCE_DISABLE;
+		/* Turn off the SSC source */
+		val &= ~DREF_SSC_SOURCE_MASK;
+		val |= DREF_SSC_SOURCE_DISABLE;
 
-			/* Turn off SSC1 */
-			val &= ~DREF_SSC1_ENABLE;
+		/* Turn off SSC1 */
+		val &= ~DREF_SSC1_ENABLE;
 
-			I915_WRITE(PCH_DREF_CONTROL, val);
-			POSTING_READ(PCH_DREF_CONTROL);
-			udelay(200);
-		}
+		I915_WRITE(PCH_DREF_CONTROL, val);
+		POSTING_READ(PCH_DREF_CONTROL);
+		udelay(200);
 	}
 
 	BUG_ON(val != final);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nv04_fbcon.c	2016-08-22 09:50:48.000000000 -0400
@@ -107,11 +107,11 @@ nv04_fbcon_imageblit(struct fb_info *inf
 			 ((image->dx + image->width) & 0xffff));
 	OUT_RING(chan, bg);
 	OUT_RING(chan, fg);
-	OUT_RING(chan, (image->height << 16) | image->width);
+	OUT_RING(chan, (image->height << 16) | ALIGN(image->width, 8));
 	OUT_RING(chan, (image->height << 16) | image->width);
 	OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
 
-	dsize = ALIGN(image->width * image->height, 32) >> 5;
+	dsize = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
 	while (dsize) {
 		int iter_len = dsize > 128 ? 128 : dsize;
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nv50_fbcon.c	2016-08-22 09:50:48.000000000 -0400
@@ -125,7 +125,7 @@ nv50_fbcon_imageblit(struct fb_info *inf
 	OUT_RING(chan, 0);
 	OUT_RING(chan, image->dy);
 
-	dwords = ALIGN(image->width * image->height, 32) >> 5;
+	dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
 	while (dwords) {
 		int push = dwords > 2047 ? 2047 : dwords;
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nvc0_fbcon.c	2016-08-22 09:50:48.000000000 -0400
@@ -125,7 +125,7 @@ nvc0_fbcon_imageblit(struct fb_info *inf
 	OUT_RING  (chan, 0);
 	OUT_RING  (chan, image->dy);
 
-	dwords = ALIGN(image->width * image->height, 32) >> 5;
+	dwords = ALIGN(ALIGN(image->width, 8) * image->height, 32) >> 5;
 	while (dwords) {
 		int push = dwords > 2047 ? 2047 : dwords;
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c	2016-08-22 09:50:48.000000000 -0400
@@ -88,8 +88,8 @@ nv30_gr_context_ctor(struct nvkm_object
 		nv_wo32(chan, i, 0x00040004);
 	for (i = 0x1f18; i <= 0x3088 ; i += 16) {
 		nv_wo32(chan, i + 0, 0x10700ff9);
-		nv_wo32(chan, i + 1, 0x0436086c);
-		nv_wo32(chan, i + 2, 0x000c001b);
+		nv_wo32(chan, i + 4, 0x0436086c);
+		nv_wo32(chan, i + 8, 0x000c001b);
 	}
 	for (i = 0x30b8; i < 0x30c8; i += 4)
 		nv_wo32(chan, i, 0x0000ffff);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c	2016-08-22 09:50:48.000000000 -0400
@@ -86,8 +86,8 @@ nv34_gr_context_ctor(struct nvkm_object
 		nv_wo32(chan, i, 0x00040004);
 	for (i = 0x15ac; i <= 0x271c ; i += 16) {
 		nv_wo32(chan, i + 0, 0x10700ff9);
-		nv_wo32(chan, i + 1, 0x0436086c);
-		nv_wo32(chan, i + 2, 0x000c001b);
+		nv_wo32(chan, i + 4, 0x0436086c);
+		nv_wo32(chan, i + 8, 0x000c001b);
 	}
 	for (i = 0x274c; i < 0x275c; i += 4)
 		nv_wo32(chan, i, 0x0000ffff);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/atombios_encoders.c linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/atombios_encoders.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/atombios_encoders.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/atombios_encoders.c	2016-08-22 09:50:48.000000000 -0400
@@ -120,6 +120,7 @@ atombios_set_backlight_level(struct rade
 		case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
 		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY3:
 			if (dig->backlight_level == 0)
 				atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_LCD_BLOFF, 0, 0);
 			else {
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/radeon_atombios.c linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/radeon_atombios.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/radeon_atombios.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/radeon_atombios.c	2016-08-22 09:50:48.000000000 -0400
@@ -1155,7 +1155,7 @@ bool radeon_atom_get_clock_info(struct d
 		    le16_to_cpu(firmware_info->info.usReferenceClock);
 		p1pll->reference_div = 0;
 
-		if (crev < 2)
+		if ((frev < 2) && (crev < 2))
 			p1pll->pll_out_min =
 				le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);
 		else
@@ -1164,7 +1164,7 @@ bool radeon_atom_get_clock_info(struct d
 		p1pll->pll_out_max =
 		    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
 
-		if (crev >= 4) {
+		if (((frev < 2) && (crev >= 4)) || (frev >= 2)) {
 			p1pll->lcd_pll_out_min =
 				le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
 			if (p1pll->lcd_pll_out_min == 0)
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/radeon_atpx_handler.c	2016-08-22 09:50:48.000000000 -0400
@@ -10,6 +10,7 @@
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/pci.h>
+#include <linux/delay.h>
 
 #include "radeon_acpi.h"
 
@@ -255,6 +256,10 @@ static int radeon_atpx_set_discrete_stat
 		if (!info)
 			return -EIO;
 		kfree(info);
+
+		/* 200ms delay is required after off */
+		if (state == 0)
+			msleep(200);
 	}
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/radeon_connectors.c linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/radeon_connectors.c
--- linux-libre-4.1.30-gnu/drivers/gpu/drm/radeon/radeon_connectors.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/gpu/drm/radeon/radeon_connectors.c	2016-08-22 09:50:48.000000000 -0400
@@ -2039,7 +2039,6 @@ radeon_add_atom_connector(struct drm_dev
 							   RADEON_OUTPUT_CSC_BYPASS);
 			/* no HPD on analog connectors */
 			radeon_connector->hpd.hpd = RADEON_HPD_NONE;
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 			connector->interlace_allowed = true;
 			connector->doublescan_allowed = true;
 			break;
@@ -2289,8 +2288,10 @@ radeon_add_atom_connector(struct drm_dev
 	}
 
 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
-		if (i2c_bus->valid)
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+		if (i2c_bus->valid) {
+			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+			                    DRM_CONNECTOR_POLL_DISCONNECT;
+		}
 	} else
 		connector->polled = DRM_CONNECTOR_POLL_HPD;
 
@@ -2366,7 +2367,6 @@ radeon_add_legacy_connector(struct drm_d
 					      1);
 		/* no HPD on analog connectors */
 		radeon_connector->hpd.hpd = RADEON_HPD_NONE;
-		connector->polled = DRM_CONNECTOR_POLL_CONNECT;
 		connector->interlace_allowed = true;
 		connector->doublescan_allowed = true;
 		break;
@@ -2451,10 +2451,13 @@ radeon_add_legacy_connector(struct drm_d
 	}
 
 	if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
-		if (i2c_bus->valid)
-			connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+		if (i2c_bus->valid) {
+			connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+			                    DRM_CONNECTOR_POLL_DISCONNECT;
+		}
 	} else
 		connector->polled = DRM_CONNECTOR_POLL_HPD;
+
 	connector->display_info.subpixel_order = subpixel_order;
 	drm_connector_register(connector);
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/hid/uhid.c linux-libre-4.1.31-gnu/drivers/hid/uhid.c
--- linux-libre-4.1.30-gnu/drivers/hid/uhid.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/hid/uhid.c	2016-08-22 09:50:48.000000000 -0400
@@ -51,10 +51,26 @@ struct uhid_device {
 	u32 report_id;
 	u32 report_type;
 	struct uhid_event report_buf;
+	struct work_struct worker;
 };
 
 static struct miscdevice uhid_misc;
 
+static void uhid_device_add_worker(struct work_struct *work)
+{
+	struct uhid_device *uhid = container_of(work, struct uhid_device, worker);
+	int ret;
+
+	ret = hid_add_device(uhid->hid);
+	if (ret) {
+		hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret);
+
+		hid_destroy_device(uhid->hid);
+		uhid->hid = NULL;
+		uhid->running = false;
+	}
+}
+
 static void uhid_queue(struct uhid_device *uhid, struct uhid_event *ev)
 {
 	__u8 newhead;
@@ -498,18 +514,14 @@ static int uhid_dev_create2(struct uhid_
 	uhid->hid = hid;
 	uhid->running = true;
 
-	ret = hid_add_device(hid);
-	if (ret) {
-		hid_err(hid, "Cannot register HID device\n");
-		goto err_hid;
-	}
+	/* Adding of a HID device is done through a worker, to allow HID drivers
+	 * which use feature requests during .probe to work, without they would
+	 * be blocked on devlock, which is held by uhid_char_write.
+	 */
+	schedule_work(&uhid->worker);
 
 	return 0;
 
-err_hid:
-	hid_destroy_device(hid);
-	uhid->hid = NULL;
-	uhid->running = false;
 err_free:
 	kfree(uhid->rd_data);
 	uhid->rd_data = NULL;
@@ -550,6 +562,8 @@ static int uhid_dev_destroy(struct uhid_
 	uhid->running = false;
 	wake_up_interruptible(&uhid->report_wait);
 
+	cancel_work_sync(&uhid->worker);
+
 	hid_destroy_device(uhid->hid);
 	kfree(uhid->rd_data);
 
@@ -612,6 +626,7 @@ static int uhid_char_open(struct inode *
 	init_waitqueue_head(&uhid->waitq);
 	init_waitqueue_head(&uhid->report_wait);
 	uhid->running = false;
+	INIT_WORK(&uhid->worker, uhid_device_add_worker);
 
 	file->private_data = uhid;
 	nonseekable_open(inode, file);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/iio/accel/kxsd9.c linux-libre-4.1.31-gnu/drivers/iio/accel/kxsd9.c
--- linux-libre-4.1.30-gnu/drivers/iio/accel/kxsd9.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/iio/accel/kxsd9.c	2016-08-22 09:50:48.000000000 -0400
@@ -81,7 +81,7 @@ static int kxsd9_write_scale(struct iio_
 
 	mutex_lock(&st->buf_lock);
 	ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
-	if (ret)
+	if (ret < 0)
 		goto error_ret;
 	st->tx[0] = KXSD9_WRITE(KXSD9_REG_CTRL_C);
 	st->tx[1] = (ret & ~KXSD9_FS_MASK) | i;
@@ -163,7 +163,7 @@ static int kxsd9_read_raw(struct iio_dev
 		break;
 	case IIO_CHAN_INFO_SCALE:
 		ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
-		if (ret)
+		if (ret < 0)
 			goto error_ret;
 		*val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK];
 		ret = IIO_VAL_INT_PLUS_MICRO;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/iio/adc/ad7266.c linux-libre-4.1.31-gnu/drivers/iio/adc/ad7266.c
--- linux-libre-4.1.30-gnu/drivers/iio/adc/ad7266.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/iio/adc/ad7266.c	2016-08-22 09:50:48.000000000 -0400
@@ -396,8 +396,8 @@ static int ad7266_probe(struct spi_devic
 
 	st = iio_priv(indio_dev);
 
-	st->reg = devm_regulator_get(&spi->dev, "vref");
-	if (!IS_ERR_OR_NULL(st->reg)) {
+	st->reg = devm_regulator_get_optional(&spi->dev, "vref");
+	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
 			return ret;
@@ -408,6 +408,9 @@ static int ad7266_probe(struct spi_devic
 
 		st->vref_mv = ret / 1000;
 	} else {
+		/* Any other error indicates that the regulator does exist */
+		if (PTR_ERR(st->reg) != -ENODEV)
+			return PTR_ERR(st->reg);
 		/* Use internal reference */
 		st->vref_mv = 2500;
 	}
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/iio/industrialio-trigger.c linux-libre-4.1.31-gnu/drivers/iio/industrialio-trigger.c
--- linux-libre-4.1.30-gnu/drivers/iio/industrialio-trigger.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/iio/industrialio-trigger.c	2016-08-22 09:50:48.000000000 -0400
@@ -203,22 +203,35 @@ static int iio_trigger_attach_poll_func(
 
 	/* Prevent the module from being removed whilst attached to a trigger */
 	__module_get(pf->indio_dev->info->driver_module);
+
+	/* Get irq number */
 	pf->irq = iio_trigger_get_irq(trig);
+	if (pf->irq < 0)
+		goto out_put_module;
+
+	/* Request irq */
 	ret = request_threaded_irq(pf->irq, pf->h, pf->thread,
 				   pf->type, pf->name,
 				   pf);
-	if (ret < 0) {
-		module_put(pf->indio_dev->info->driver_module);
-		return ret;
-	}
+	if (ret < 0)
+		goto out_put_irq;
 
+	/* Enable trigger in driver */
 	if (trig->ops && trig->ops->set_trigger_state && notinuse) {
 		ret = trig->ops->set_trigger_state(trig, true);
 		if (ret < 0)
-			module_put(pf->indio_dev->info->driver_module);
+			goto out_free_irq;
 	}
 
 	return ret;
+
+out_free_irq:
+	free_irq(pf->irq, pf);
+out_put_irq:
+	iio_trigger_put_irq(trig, pf->irq);
+out_put_module:
+	module_put(pf->indio_dev->info->driver_module);
+	return ret;
 }
 
 static int iio_trigger_detach_poll_func(struct iio_trigger *trig,
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/iio/pressure/st_pressure_core.c linux-libre-4.1.31-gnu/drivers/iio/pressure/st_pressure_core.c
--- linux-libre-4.1.30-gnu/drivers/iio/pressure/st_pressure_core.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/iio/pressure/st_pressure_core.c	2016-08-22 09:50:48.000000000 -0400
@@ -28,15 +28,21 @@
 #include <linux/iio/common/st_sensors.h>
 #include "st_pressure.h"
 
+#define MCELSIUS_PER_CELSIUS			1000
+
+/* Default pressure sensitivity */
 #define ST_PRESS_LSB_PER_MBAR			4096UL
 #define ST_PRESS_KPASCAL_NANO_SCALE		(100000000UL / \
 						 ST_PRESS_LSB_PER_MBAR)
+
+/* Default temperature sensitivity */
 #define ST_PRESS_LSB_PER_CELSIUS		480UL
-#define ST_PRESS_CELSIUS_NANO_SCALE		(1000000000UL / \
-						 ST_PRESS_LSB_PER_CELSIUS)
+#define ST_PRESS_MILLI_CELSIUS_OFFSET		42500UL
+
 #define ST_PRESS_NUMBER_DATA_CHANNELS		1
 
 /* FULLSCALE */
+#define ST_PRESS_FS_AVL_1100MB			1100
 #define ST_PRESS_FS_AVL_1260MB			1260
 
 #define ST_PRESS_1_OUT_XL_ADDR			0x28
@@ -54,18 +60,20 @@
 #define ST_PRESS_LPS331AP_PW_MASK		0x80
 #define ST_PRESS_LPS331AP_FS_ADDR		0x23
 #define ST_PRESS_LPS331AP_FS_MASK		0x30
-#define ST_PRESS_LPS331AP_FS_AVL_1260_VAL	0x00
-#define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN	ST_PRESS_KPASCAL_NANO_SCALE
-#define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN	ST_PRESS_CELSIUS_NANO_SCALE
 #define ST_PRESS_LPS331AP_BDU_ADDR		0x20
 #define ST_PRESS_LPS331AP_BDU_MASK		0x04
 #define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR		0x22
 #define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK	0x04
 #define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK	0x20
 #define ST_PRESS_LPS331AP_MULTIREAD_BIT		true
-#define ST_PRESS_LPS331AP_TEMP_OFFSET		42500
 
 /* CUSTOM VALUES FOR LPS001WP SENSOR */
+
+/* LPS001WP pressure resolution */
+#define ST_PRESS_LPS001WP_LSB_PER_MBAR		16UL
+/* LPS001WP temperature resolution */
+#define ST_PRESS_LPS001WP_LSB_PER_CELSIUS	64UL
+
 #define ST_PRESS_LPS001WP_WAI_EXP		0xba
 #define ST_PRESS_LPS001WP_ODR_ADDR		0x20
 #define ST_PRESS_LPS001WP_ODR_MASK		0x30
@@ -74,6 +82,8 @@
 #define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL	0x03
 #define ST_PRESS_LPS001WP_PW_ADDR		0x20
 #define ST_PRESS_LPS001WP_PW_MASK		0x40
+#define ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN \
+	(100000000UL / ST_PRESS_LPS001WP_LSB_PER_MBAR)
 #define ST_PRESS_LPS001WP_BDU_ADDR		0x20
 #define ST_PRESS_LPS001WP_BDU_MASK		0x04
 #define ST_PRESS_LPS001WP_MULTIREAD_BIT		true
@@ -90,18 +100,12 @@
 #define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL	0x04
 #define ST_PRESS_LPS25H_PW_ADDR			0x20
 #define ST_PRESS_LPS25H_PW_MASK			0x80
-#define ST_PRESS_LPS25H_FS_ADDR			0x00
-#define ST_PRESS_LPS25H_FS_MASK			0x00
-#define ST_PRESS_LPS25H_FS_AVL_1260_VAL		0x00
-#define ST_PRESS_LPS25H_FS_AVL_1260_GAIN	ST_PRESS_KPASCAL_NANO_SCALE
-#define ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN	ST_PRESS_CELSIUS_NANO_SCALE
 #define ST_PRESS_LPS25H_BDU_ADDR		0x20
 #define ST_PRESS_LPS25H_BDU_MASK		0x04
 #define ST_PRESS_LPS25H_DRDY_IRQ_ADDR		0x23
 #define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK	0x01
 #define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK	0x10
 #define ST_PRESS_LPS25H_MULTIREAD_BIT		true
-#define ST_PRESS_LPS25H_TEMP_OFFSET		42500
 #define ST_PRESS_LPS25H_OUT_XL_ADDR		0x28
 #define ST_TEMP_LPS25H_OUT_L_ADDR		0x2b
 
@@ -153,7 +157,9 @@ static const struct iio_chan_spec st_pre
 			.storagebits = 16,
 			.endianness = IIO_LE,
 		},
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.info_mask_separate =
+			BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_SCALE),
 		.modified = 0,
 	},
 	{
@@ -169,7 +175,7 @@ static const struct iio_chan_spec st_pre
 		},
 		.info_mask_separate =
 			BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_OFFSET),
+			BIT(IIO_CHAN_INFO_SCALE),
 		.modified = 0,
 	},
 	IIO_CHAN_SOFT_TIMESTAMP(1)
@@ -203,11 +209,14 @@ static const struct st_sensor_settings s
 			.addr = ST_PRESS_LPS331AP_FS_ADDR,
 			.mask = ST_PRESS_LPS331AP_FS_MASK,
 			.fs_avl = {
+				/*
+				 * Pressure and temperature sensitivity values
+				 * as defined in table 3 of LPS331AP datasheet.
+				 */
 				[0] = {
 					.num = ST_PRESS_FS_AVL_1260MB,
-					.value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL,
-					.gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN,
-					.gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN,
+					.gain = ST_PRESS_KPASCAL_NANO_SCALE,
+					.gain2 = ST_PRESS_LSB_PER_CELSIUS,
 				},
 			},
 		},
@@ -246,7 +255,17 @@ static const struct st_sensor_settings s
 			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
 		},
 		.fs = {
-			.addr = 0,
+			.fs_avl = {
+				/*
+				 * Pressure and temperature resolution values
+				 * as defined in table 3 of LPS001WP datasheet.
+				 */
+				[0] = {
+					.num = ST_PRESS_FS_AVL_1100MB,
+					.gain = ST_PRESS_LPS001WP_FS_AVL_PRESS_GAIN,
+					.gain2 = ST_PRESS_LPS001WP_LSB_PER_CELSIUS,
+				},
+			},
 		},
 		.bdu = {
 			.addr = ST_PRESS_LPS001WP_BDU_ADDR,
@@ -282,14 +301,15 @@ static const struct st_sensor_settings s
 			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
 		},
 		.fs = {
-			.addr = ST_PRESS_LPS25H_FS_ADDR,
-			.mask = ST_PRESS_LPS25H_FS_MASK,
 			.fs_avl = {
+				/*
+				 * Pressure and temperature sensitivity values
+				 * as defined in table 3 of LPS25H datasheet.
+				 */
 				[0] = {
 					.num = ST_PRESS_FS_AVL_1260MB,
-					.value = ST_PRESS_LPS25H_FS_AVL_1260_VAL,
-					.gain = ST_PRESS_LPS25H_FS_AVL_1260_GAIN,
-					.gain2 = ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN,
+					.gain = ST_PRESS_KPASCAL_NANO_SCALE,
+					.gain2 = ST_PRESS_LSB_PER_CELSIUS,
 				},
 			},
 		},
@@ -343,26 +363,26 @@ static int st_press_read_raw(struct iio_
 
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-
 		switch (ch->type) {
 		case IIO_PRESSURE:
+			*val = 0;
 			*val2 = press_data->current_fullscale->gain;
-			break;
+			return IIO_VAL_INT_PLUS_NANO;
 		case IIO_TEMP:
+			*val = MCELSIUS_PER_CELSIUS;
 			*val2 = press_data->current_fullscale->gain2;
-			break;
+			return IIO_VAL_FRACTIONAL;
 		default:
 			err = -EINVAL;
 			goto read_error;
 		}
 
-		return IIO_VAL_INT_PLUS_NANO;
 	case IIO_CHAN_INFO_OFFSET:
 		switch (ch->type) {
 		case IIO_TEMP:
-			*val = 425;
-			*val2 = 10;
+			*val = ST_PRESS_MILLI_CELSIUS_OFFSET *
+			       press_data->current_fullscale->gain2;
+			*val2 = MCELSIUS_PER_CELSIUS;
 			break;
 		default:
 			err = -EINVAL;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/iio/proximity/as3935.c linux-libre-4.1.31-gnu/drivers/iio/proximity/as3935.c
--- linux-libre-4.1.30-gnu/drivers/iio/proximity/as3935.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/iio/proximity/as3935.c	2016-08-22 09:50:48.000000000 -0400
@@ -64,6 +64,7 @@ struct as3935_state {
 	struct delayed_work work;
 
 	u32 tune_cap;
+	u8 buffer[16]; /* 8-bit data + 56-bit padding + 64-bit timestamp */
 	u8 buf[2] ____cacheline_aligned;
 };
 
@@ -72,7 +73,8 @@ static const struct iio_chan_spec as3935
 		.type           = IIO_PROXIMITY,
 		.info_mask_separate =
 			BIT(IIO_CHAN_INFO_RAW) |
-			BIT(IIO_CHAN_INFO_PROCESSED),
+			BIT(IIO_CHAN_INFO_PROCESSED) |
+			BIT(IIO_CHAN_INFO_SCALE),
 		.scan_index     = 0,
 		.scan_type = {
 			.sign           = 'u',
@@ -181,7 +183,12 @@ static int as3935_read_raw(struct iio_de
 		/* storm out of range */
 		if (*val == AS3935_DATA_MASK)
 			return -EINVAL;
-		*val *= 1000;
+
+		if (m == IIO_CHAN_INFO_PROCESSED)
+			*val *= 1000;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 1000;
 		break;
 	default:
 		return -EINVAL;
@@ -206,10 +213,10 @@ static irqreturn_t as3935_trigger_handle
 	ret = as3935_read(st, AS3935_DATA, &val);
 	if (ret)
 		goto err_read;
-	val &= AS3935_DATA_MASK;
-	val *= 1000;
 
-	iio_push_to_buffers_with_timestamp(indio_dev, &val, pf->timestamp);
+	st->buffer[0] = val & AS3935_DATA_MASK;
+	iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer,
+					   pf->timestamp);
 err_read:
 	iio_trigger_notify_done(indio_dev->trig);
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/input/serio/i8042.c linux-libre-4.1.31-gnu/drivers/input/serio/i8042.c
--- linux-libre-4.1.30-gnu/drivers/input/serio/i8042.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/input/serio/i8042.c	2016-08-22 09:50:48.000000000 -0400
@@ -1249,6 +1249,7 @@ static int __init i8042_create_kbd_port(
 	serio->start		= i8042_start;
 	serio->stop		= i8042_stop;
 	serio->close		= i8042_port_close;
+	serio->ps2_cmd_mutex	= &i8042_mutex;
 	serio->port_data	= port;
 	serio->dev.parent	= &i8042_platform_device->dev;
 	strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name));
@@ -1345,21 +1346,6 @@ static void i8042_unregister_ports(void)
 	}
 }
 
-/*
- * Checks whether port belongs to i8042 controller.
- */
-bool i8042_check_port_owner(const struct serio *port)
-{
-	int i;
-
-	for (i = 0; i < I8042_NUM_PORTS; i++)
-		if (i8042_ports[i].serio == port)
-			return true;
-
-	return false;
-}
-EXPORT_SYMBOL(i8042_check_port_owner);
-
 static void i8042_free_irqs(void)
 {
 	if (i8042_aux_irq_registered)
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/input/serio/libps2.c linux-libre-4.1.31-gnu/drivers/input/serio/libps2.c
--- linux-libre-4.1.30-gnu/drivers/input/serio/libps2.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/input/serio/libps2.c	2016-08-22 09:50:48.000000000 -0400
@@ -56,19 +56,17 @@ EXPORT_SYMBOL(ps2_sendbyte);
 
 void ps2_begin_command(struct ps2dev *ps2dev)
 {
-	mutex_lock(&ps2dev->cmd_mutex);
+	struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex;
 
-	if (i8042_check_port_owner(ps2dev->serio))
-		i8042_lock_chip();
+	mutex_lock(m);
 }
 EXPORT_SYMBOL(ps2_begin_command);
 
 void ps2_end_command(struct ps2dev *ps2dev)
 {
-	if (i8042_check_port_owner(ps2dev->serio))
-		i8042_unlock_chip();
+	struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex;
 
-	mutex_unlock(&ps2dev->cmd_mutex);
+	mutex_unlock(m);
 }
 EXPORT_SYMBOL(ps2_end_command);
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/md/dm.c linux-libre-4.1.31-gnu/drivers/md/dm.c
--- linux-libre-4.1.30-gnu/drivers/md/dm.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/md/dm.c	2016-08-22 09:50:48.000000000 -0400
@@ -1200,8 +1200,14 @@ static void stop_queue(struct request_qu
 {
 	if (!q->mq_ops)
 		old_stop_queue(q);
-	else
+	else {
+		spin_lock_irq(q->queue_lock);
+		queue_flag_set(QUEUE_FLAG_STOPPED, q);
+		spin_unlock_irq(q->queue_lock);
+
+		blk_mq_cancel_requeue_work(q);
 		blk_mq_stop_hw_queues(q);
+	}
 }
 
 static void old_start_queue(struct request_queue *q)
@@ -1218,8 +1224,10 @@ static void start_queue(struct request_q
 {
 	if (!q->mq_ops)
 		old_start_queue(q);
-	else
+	else {
+		queue_flag_clear_unlocked(QUEUE_FLAG_STOPPED, q);
 		blk_mq_start_stopped_hw_queues(q, true);
+	}
 }
 
 static void dm_done(struct request *clone, int error, bool mapped)
@@ -2139,7 +2147,7 @@ static void dm_request_fn(struct request
 	goto out;
 
 delay_and_out:
-	blk_delay_queue(q, HZ / 100);
+	blk_delay_queue(q, 10);
 out:
 	dm_put_live_table(md, srcu_idx);
 }
@@ -2731,6 +2739,17 @@ static int dm_mq_queue_rq(struct blk_mq_
 	}
 	dm_put_live_table(md, srcu_idx);
 
+	/*
+	 * On suspend dm_stop_queue() handles stopping the blk-mq
+	 * request_queue BUT: even though the hw_queues are marked
+	 * BLK_MQ_S_STOPPED at that point there is still a race that
+	 * is allowing block/blk-mq.c to call ->queue_rq against a
+	 * hctx that it really shouldn't.  The following check guards
+	 * against this rarity (albeit _not_ race-free).
+	 */
+	if (unlikely(test_bit(BLK_MQ_S_STOPPED, &hctx->state)))
+		return BLK_MQ_RQ_QUEUE_BUSY;
+
 	if (ti->type->busy && ti->type->busy(ti))
 		return BLK_MQ_RQ_QUEUE_BUSY;
 
@@ -3130,7 +3149,8 @@ static void unlock_fs(struct mapped_devi
  * Caller must hold md->suspend_lock
  */
 static int __dm_suspend(struct mapped_device *md, struct dm_table *map,
-			unsigned suspend_flags, int interruptible)
+			unsigned suspend_flags, int interruptible,
+			int dmf_suspended_flag)
 {
 	bool do_lockfs = suspend_flags & DM_SUSPEND_LOCKFS_FLAG;
 	bool noflush = suspend_flags & DM_SUSPEND_NOFLUSH_FLAG;
@@ -3197,6 +3217,8 @@ static int __dm_suspend(struct mapped_de
 	 * to finish.
 	 */
 	r = dm_wait_for_completion(md, interruptible);
+	if (!r)
+		set_bit(dmf_suspended_flag, &md->flags);
 
 	if (noflush)
 		clear_bit(DMF_NOFLUSH_SUSPENDING, &md->flags);
@@ -3258,12 +3280,10 @@ retry:
 
 	map = rcu_dereference_protected(md->map, lockdep_is_held(&md->suspend_lock));
 
-	r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE);
+	r = __dm_suspend(md, map, suspend_flags, TASK_INTERRUPTIBLE, DMF_SUSPENDED);
 	if (r)
 		goto out_unlock;
 
-	set_bit(DMF_SUSPENDED, &md->flags);
-
 	dm_table_postsuspend_targets(map);
 
 out_unlock:
@@ -3357,9 +3377,8 @@ static void __dm_internal_suspend(struct
 	 * would require changing .presuspend to return an error -- avoid this
 	 * until there is a need for more elaborate variants of internal suspend.
 	 */
-	(void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE);
-
-	set_bit(DMF_SUSPENDED_INTERNALLY, &md->flags);
+	(void) __dm_suspend(md, map, suspend_flags, TASK_UNINTERRUPTIBLE,
+			    DMF_SUSPENDED_INTERNALLY);
 
 	dm_table_postsuspend_targets(map);
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/md/dm-flakey.c linux-libre-4.1.31-gnu/drivers/md/dm-flakey.c
--- linux-libre-4.1.30-gnu/drivers/md/dm-flakey.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/md/dm-flakey.c	2016-08-22 09:50:48.000000000 -0400
@@ -287,10 +287,16 @@ static int flakey_map(struct dm_target *
 		pb->bio_submitted = true;
 
 		/*
-		 * Map reads as normal.
+		 * Map reads as normal only if corrupt_bio_byte set.
 		 */
-		if (bio_data_dir(bio) == READ)
-			goto map_bio;
+		if (bio_data_dir(bio) == READ) {
+			/* If flags were specified, only corrupt those that match. */
+			if (fc->corrupt_bio_byte && (fc->corrupt_bio_rw == READ) &&
+			    all_corrupt_bio_flags_match(bio, fc))
+				goto map_bio;
+			else
+				return -EIO;
+		}
 
 		/*
 		 * Drop writes?
@@ -328,12 +334,13 @@ static int flakey_end_io(struct dm_targe
 
 	/*
 	 * Corrupt successful READs while in down state.
-	 * If flags were specified, only corrupt those that match.
 	 */
-	if (fc->corrupt_bio_byte && !error && pb->bio_submitted &&
-	    (bio_data_dir(bio) == READ) && (fc->corrupt_bio_rw == READ) &&
-	    all_corrupt_bio_flags_match(bio, fc))
-		corrupt_bio_data(bio, fc);
+	if (!error && pb->bio_submitted && (bio_data_dir(bio) == READ)) {
+		if (fc->corrupt_bio_byte)
+			corrupt_bio_data(bio, fc);
+		else
+			return -EIO;
+	}
 
 	return error;
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/media/dvb-core/dvb_ringbuffer.c linux-libre-4.1.31-gnu/drivers/media/dvb-core/dvb_ringbuffer.c
--- linux-libre-4.1.30-gnu/drivers/media/dvb-core/dvb_ringbuffer.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/media/dvb-core/dvb_ringbuffer.c	2016-08-22 09:50:48.000000000 -0400
@@ -55,7 +55,13 @@ void dvb_ringbuffer_init(struct dvb_ring
 
 int dvb_ringbuffer_empty(struct dvb_ringbuffer *rbuf)
 {
-	return (rbuf->pread==rbuf->pwrite);
+	/* smp_load_acquire() to load write pointer on reader side
+	 * this pairs with smp_store_release() in dvb_ringbuffer_write(),
+	 * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset()
+	 *
+	 * for memory barriers also see Documentation/circular-buffers.txt
+	 */
+	return (rbuf->pread == smp_load_acquire(&rbuf->pwrite));
 }
 
 
@@ -64,7 +70,12 @@ ssize_t dvb_ringbuffer_free(struct dvb_r
 {
 	ssize_t free;
 
-	free = rbuf->pread - rbuf->pwrite;
+	/* ACCESS_ONCE() to load read pointer on writer side
+	 * this pairs with smp_store_release() in dvb_ringbuffer_read(),
+	 * dvb_ringbuffer_read_user(), dvb_ringbuffer_flush(),
+	 * or dvb_ringbuffer_reset()
+	 */
+	free = ACCESS_ONCE(rbuf->pread) - rbuf->pwrite;
 	if (free <= 0)
 		free += rbuf->size;
 	return free-1;
@@ -76,7 +87,11 @@ ssize_t dvb_ringbuffer_avail(struct dvb_
 {
 	ssize_t avail;
 
-	avail = rbuf->pwrite - rbuf->pread;
+	/* smp_load_acquire() to load write pointer on reader side
+	 * this pairs with smp_store_release() in dvb_ringbuffer_write(),
+	 * dvb_ringbuffer_write_user(), or dvb_ringbuffer_reset()
+	 */
+	avail = smp_load_acquire(&rbuf->pwrite) - rbuf->pread;
 	if (avail < 0)
 		avail += rbuf->size;
 	return avail;
@@ -86,14 +101,25 @@ ssize_t dvb_ringbuffer_avail(struct dvb_
 
 void dvb_ringbuffer_flush(struct dvb_ringbuffer *rbuf)
 {
-	rbuf->pread = rbuf->pwrite;
+	/* dvb_ringbuffer_flush() counts as read operation
+	 * smp_load_acquire() to load write pointer
+	 * smp_store_release() to update read pointer, this ensures that the
+	 * correct pointer is visible for subsequent dvb_ringbuffer_free()
+	 * calls on other cpu cores
+	 */
+	smp_store_release(&rbuf->pread, smp_load_acquire(&rbuf->pwrite));
 	rbuf->error = 0;
 }
 EXPORT_SYMBOL(dvb_ringbuffer_flush);
 
 void dvb_ringbuffer_reset(struct dvb_ringbuffer *rbuf)
 {
-	rbuf->pread = rbuf->pwrite = 0;
+	/* dvb_ringbuffer_reset() counts as read and write operation
+	 * smp_store_release() to update read pointer
+	 */
+	smp_store_release(&rbuf->pread, 0);
+	/* smp_store_release() to update write pointer */
+	smp_store_release(&rbuf->pwrite, 0);
 	rbuf->error = 0;
 }
 
@@ -119,12 +145,17 @@ ssize_t dvb_ringbuffer_read_user(struct
 			return -EFAULT;
 		buf += split;
 		todo -= split;
-		rbuf->pread = 0;
+		/* smp_store_release() for read pointer update to ensure
+		 * that buf is not overwritten until read is complete,
+		 * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+		 */
+		smp_store_release(&rbuf->pread, 0);
 	}
 	if (copy_to_user(buf, rbuf->data+rbuf->pread, todo))
 		return -EFAULT;
 
-	rbuf->pread = (rbuf->pread + todo) % rbuf->size;
+	/* smp_store_release() to update read pointer, see above */
+	smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size);
 
 	return len;
 }
@@ -139,11 +170,16 @@ void dvb_ringbuffer_read(struct dvb_ring
 		memcpy(buf, rbuf->data+rbuf->pread, split);
 		buf += split;
 		todo -= split;
-		rbuf->pread = 0;
+		/* smp_store_release() for read pointer update to ensure
+		 * that buf is not overwritten until read is complete,
+		 * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+		 */
+		smp_store_release(&rbuf->pread, 0);
 	}
 	memcpy(buf, rbuf->data+rbuf->pread, todo);
 
-	rbuf->pread = (rbuf->pread + todo) % rbuf->size;
+	/* smp_store_release() to update read pointer, see above */
+	smp_store_release(&rbuf->pread, (rbuf->pread + todo) % rbuf->size);
 }
 
 
@@ -158,10 +194,16 @@ ssize_t dvb_ringbuffer_write(struct dvb_
 		memcpy(rbuf->data+rbuf->pwrite, buf, split);
 		buf += split;
 		todo -= split;
-		rbuf->pwrite = 0;
+		/* smp_store_release() for write pointer update to ensure that
+		 * written data is visible on other cpu cores before the pointer
+		 * update, this pairs with smp_load_acquire() in
+		 * dvb_ringbuffer_empty() or dvb_ringbuffer_avail()
+		 */
+		smp_store_release(&rbuf->pwrite, 0);
 	}
 	memcpy(rbuf->data+rbuf->pwrite, buf, todo);
-	rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size;
+	/* smp_store_release() for write pointer update, see above */
+	smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size);
 
 	return len;
 }
@@ -181,12 +223,18 @@ ssize_t dvb_ringbuffer_write_user(struct
 			return len - todo;
 		buf += split;
 		todo -= split;
-		rbuf->pwrite = 0;
+		/* smp_store_release() for write pointer update to ensure that
+		 * written data is visible on other cpu cores before the pointer
+		 * update, this pairs with smp_load_acquire() in
+		 * dvb_ringbuffer_empty() or dvb_ringbuffer_avail()
+		 */
+		smp_store_release(&rbuf->pwrite, 0);
 	}
 	status = copy_from_user(rbuf->data+rbuf->pwrite, buf, todo);
 	if (status)
 		return len - todo;
-	rbuf->pwrite = (rbuf->pwrite + todo) % rbuf->size;
+	/* smp_store_release() for write pointer update, see above */
+	smp_store_release(&rbuf->pwrite, (rbuf->pwrite + todo) % rbuf->size);
 
 	return len;
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c linux-libre-4.1.31-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c
--- linux-libre-4.1.30-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2016-08-10 01:54:44.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/media/platform/s5p-mfc/s5p_mfc.c	2016-08-23 03:53:30.000000000 -0400
@@ -1022,6 +1022,11 @@ static int match_child(struct device *de
 	return !strcmp(dev_name(dev), (char *)data);
 }
 
+static void s5p_mfc_memdev_release(struct device *dev)
+{
+	dma_release_declared_memory(dev);
+}
+
 static void *mfc_get_drv_data(struct platform_device *pdev);
 
 static int s5p_mfc_alloc_memdevs(struct s5p_mfc_dev *dev)
@@ -1034,6 +1039,9 @@ static int s5p_mfc_alloc_memdevs(struct
 		mfc_err("Not enough memory\n");
 		return -ENOMEM;
 	}
+
+	dev_set_name(dev->mem_dev_l, "%s", "s5p-mfc-l");
+	dev->mem_dev_l->release = s5p_mfc_memdev_release;
 	device_initialize(dev->mem_dev_l);
 	of_property_read_u32_array(dev->plat_dev->dev.of_node,
 			"samsung,mfc-l", mem_info, 2);
@@ -1051,6 +1059,9 @@ static int s5p_mfc_alloc_memdevs(struct
 		mfc_err("Not enough memory\n");
 		return -ENOMEM;
 	}
+
+	dev_set_name(dev->mem_dev_r, "%s", "s5p-mfc-r");
+	dev->mem_dev_r->release = s5p_mfc_memdev_release;
 	device_initialize(dev->mem_dev_r);
 	of_property_read_u32_array(dev->plat_dev->dev.of_node,
 			"samsung,mfc-r", mem_info, 2);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/media/rc/ir-rc5-decoder.c linux-libre-4.1.31-gnu/drivers/media/rc/ir-rc5-decoder.c
--- linux-libre-4.1.30-gnu/drivers/media/rc/ir-rc5-decoder.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/media/rc/ir-rc5-decoder.c	2016-08-22 09:50:48.000000000 -0400
@@ -29,7 +29,7 @@
 #define RC5_BIT_START		(1 * RC5_UNIT)
 #define RC5_BIT_END		(1 * RC5_UNIT)
 #define RC5X_SPACE		(4 * RC5_UNIT)
-#define RC5_TRAILER		(10 * RC5_UNIT) /* In reality, approx 100 */
+#define RC5_TRAILER		(6 * RC5_UNIT) /* In reality, approx 100 */
 
 enum rc5_state {
 	STATE_INACTIVE,
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/media/usb/usbtv/usbtv-audio.c linux-libre-4.1.31-gnu/drivers/media/usb/usbtv/usbtv-audio.c
--- linux-libre-4.1.30-gnu/drivers/media/usb/usbtv/usbtv-audio.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/media/usb/usbtv/usbtv-audio.c	2016-08-22 09:50:48.000000000 -0400
@@ -278,6 +278,9 @@ static void snd_usbtv_trigger(struct wor
 {
 	struct usbtv *chip = container_of(work, struct usbtv, snd_trigger);
 
+	if (!chip->snd)
+		return;
+
 	if (atomic_read(&chip->snd_stream))
 		usbtv_audio_start(chip);
 	else
@@ -378,6 +381,8 @@ err:
 
 void usbtv_audio_free(struct usbtv *usbtv)
 {
+	cancel_work_sync(&usbtv->snd_trigger);
+
 	if (usbtv->snd && usbtv->udev) {
 		snd_card_free(usbtv->snd);
 		usbtv->snd = NULL;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/mfd/qcom_rpm.c linux-libre-4.1.31-gnu/drivers/mfd/qcom_rpm.c
--- linux-libre-4.1.30-gnu/drivers/mfd/qcom_rpm.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/mfd/qcom_rpm.c	2016-08-22 09:50:48.000000000 -0400
@@ -34,7 +34,13 @@ struct qcom_rpm_resource {
 struct qcom_rpm_data {
 	u32 version;
 	const struct qcom_rpm_resource *resource_table;
-	unsigned n_resources;
+	unsigned int n_resources;
+	unsigned int req_ctx_off;
+	unsigned int req_sel_off;
+	unsigned int ack_ctx_off;
+	unsigned int ack_sel_off;
+	unsigned int req_sel_size;
+	unsigned int ack_sel_size;
 };
 
 struct qcom_rpm {
@@ -61,11 +67,7 @@ struct qcom_rpm {
 
 #define RPM_REQUEST_TIMEOUT	(5 * HZ)
 
-#define RPM_REQUEST_CONTEXT	3
-#define RPM_REQ_SELECT		11
-#define RPM_ACK_CONTEXT		15
-#define RPM_ACK_SELECTOR	23
-#define RPM_SELECT_SIZE		7
+#define RPM_MAX_SEL_SIZE	7
 
 #define RPM_NOTIFICATION	BIT(30)
 #define RPM_REJECTED		BIT(31)
@@ -156,6 +158,12 @@ static const struct qcom_rpm_data apq806
 	.version = 3,
 	.resource_table = apq8064_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(apq8064_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 15,
+	.ack_sel_off = 23,
+	.req_sel_size = 4,
+	.ack_sel_size = 7,
 };
 
 static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = {
@@ -239,6 +247,12 @@ static const struct qcom_rpm_data msm866
 	.version = 2,
 	.resource_table = msm8660_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(msm8660_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 19,
+	.ack_sel_off = 27,
+	.req_sel_size = 7,
+	.ack_sel_size = 7,
 };
 
 static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = {
@@ -321,6 +335,12 @@ static const struct qcom_rpm_data msm896
 	.version = 3,
 	.resource_table = msm8960_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(msm8960_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 15,
+	.ack_sel_off = 23,
+	.req_sel_size = 4,
+	.ack_sel_size = 7,
 };
 
 static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = {
@@ -361,6 +381,12 @@ static const struct qcom_rpm_data ipq806
 	.version = 3,
 	.resource_table = ipq806x_rpm_resource_table,
 	.n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table),
+	.req_ctx_off = 3,
+	.req_sel_off = 11,
+	.ack_ctx_off = 15,
+	.ack_sel_off = 23,
+	.req_sel_size = 4,
+	.ack_sel_size = 7,
 };
 
 static const struct of_device_id qcom_rpm_of_match[] = {
@@ -379,7 +405,7 @@ int qcom_rpm_write(struct qcom_rpm *rpm,
 {
 	const struct qcom_rpm_resource *res;
 	const struct qcom_rpm_data *data = rpm->data;
-	u32 sel_mask[RPM_SELECT_SIZE] = { 0 };
+	u32 sel_mask[RPM_MAX_SEL_SIZE] = { 0 };
 	int left;
 	int ret = 0;
 	int i;
@@ -397,12 +423,12 @@ int qcom_rpm_write(struct qcom_rpm *rpm,
 		writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i));
 
 	bitmap_set((unsigned long *)sel_mask, res->select_id, 1);
-	for (i = 0; i < ARRAY_SIZE(sel_mask); i++) {
+	for (i = 0; i < rpm->data->req_sel_size; i++) {
 		writel_relaxed(sel_mask[i],
-			       RPM_CTRL_REG(rpm, RPM_REQ_SELECT + i));
+			       RPM_CTRL_REG(rpm, rpm->data->req_sel_off + i));
 	}
 
-	writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, RPM_REQUEST_CONTEXT));
+	writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, rpm->data->req_ctx_off));
 
 	reinit_completion(&rpm->ack);
 	regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit));
@@ -425,10 +451,11 @@ static irqreturn_t qcom_rpm_ack_interrup
 	u32 ack;
 	int i;
 
-	ack = readl_relaxed(RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT));
-	for (i = 0; i < RPM_SELECT_SIZE; i++)
-		writel_relaxed(0, RPM_CTRL_REG(rpm, RPM_ACK_SELECTOR + i));
-	writel(0, RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT));
+	ack = readl_relaxed(RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));
+	for (i = 0; i < rpm->data->ack_sel_size; i++)
+		writel_relaxed(0,
+			RPM_CTRL_REG(rpm, rpm->data->ack_sel_off + i));
+	writel(0, RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));
 
 	if (ack & RPM_NOTIFICATION) {
 		dev_warn(rpm->dev, "ignoring notification!\n");
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/mtd/nand/nand_base.c linux-libre-4.1.31-gnu/drivers/mtd/nand/nand_base.c
--- linux-libre-4.1.30-gnu/drivers/mtd/nand/nand_base.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/mtd/nand/nand_base.c	2016-08-22 09:50:48.000000000 -0400
@@ -2441,7 +2441,7 @@ static int nand_do_write_ops(struct mtd_
 		int cached = writelen > bytes && page != blockmask;
 		uint8_t *wbuf = buf;
 		int use_bufpoi;
-		int part_pagewr = (column || writelen < (mtd->writesize - 1));
+		int part_pagewr = (column || writelen < mtd->writesize);
 
 		if (part_pagewr)
 			use_bufpoi = 1;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/mtd/ubi/build.c linux-libre-4.1.31-gnu/drivers/mtd/ubi/build.c
--- linux-libre-4.1.30-gnu/drivers/mtd/ubi/build.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/mtd/ubi/build.c	2016-08-22 09:50:48.000000000 -0400
@@ -887,7 +887,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 	for (i = 0; i < UBI_MAX_DEVICES; i++) {
 		ubi = ubi_devices[i];
 		if (ubi && mtd->index == ubi->mtd->index) {
-			ubi_err(ubi, "mtd%d is already attached to ubi%d",
+			pr_err("ubi: mtd%d is already attached to ubi%d",
 				mtd->index, i);
 			return -EEXIST;
 		}
@@ -902,7 +902,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 	 * no sense to attach emulated MTD devices, so we prohibit this.
 	 */
 	if (mtd->type == MTD_UBIVOLUME) {
-		ubi_err(ubi, "refuse attaching mtd%d - it is already emulated on top of UBI",
+		pr_err("ubi: refuse attaching mtd%d - it is already emulated on top of UBI",
 			mtd->index);
 		return -EINVAL;
 	}
@@ -913,7 +913,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 			if (!ubi_devices[ubi_num])
 				break;
 		if (ubi_num == UBI_MAX_DEVICES) {
-			ubi_err(ubi, "only %d UBI devices may be created",
+			pr_err("ubi: only %d UBI devices may be created",
 				UBI_MAX_DEVICES);
 			return -ENFILE;
 		}
@@ -923,7 +923,7 @@ int ubi_attach_mtd_dev(struct mtd_info *
 
 		/* Make sure ubi_num is not busy */
 		if (ubi_devices[ubi_num]) {
-			ubi_err(ubi, "already exists");
+			pr_err("ubi: ubi%i already exists", ubi_num);
 			return -EEXIST;
 		}
 	}
@@ -1005,6 +1005,9 @@ int ubi_attach_mtd_dev(struct mtd_info *
 			goto out_detach;
 	}
 
+	/* Make device "available" before it becomes accessible via sysfs */
+	ubi_devices[ubi_num] = ubi;
+
 	err = uif_init(ubi, &ref);
 	if (err)
 		goto out_detach;
@@ -1049,7 +1052,6 @@ int ubi_attach_mtd_dev(struct mtd_info *
 	wake_up_process(ubi->bgt_thread);
 	spin_unlock(&ubi->wl_lock);
 
-	ubi_devices[ubi_num] = ubi;
 	ubi_notify_all(ubi, UBI_VOLUME_ADDED, NULL);
 	return ubi_num;
 
@@ -1060,6 +1062,7 @@ out_uif:
 	ubi_assert(ref);
 	uif_close(ubi);
 out_detach:
+	ubi_devices[ubi_num] = NULL;
 	ubi_wl_close(ubi);
 	ubi_free_internal_volumes(ubi);
 	vfree(ubi->vtbl);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/mtd/ubi/vmt.c linux-libre-4.1.31-gnu/drivers/mtd/ubi/vmt.c
--- linux-libre-4.1.30-gnu/drivers/mtd/ubi/vmt.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/mtd/ubi/vmt.c	2016-08-22 09:50:48.000000000 -0400
@@ -536,13 +536,6 @@ int ubi_resize_volume(struct ubi_volume_
 		spin_unlock(&ubi->volumes_lock);
 	}
 
-	/* Change volume table record */
-	vtbl_rec = ubi->vtbl[vol_id];
-	vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs);
-	err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
-	if (err)
-		goto out_acc;
-
 	if (pebs < 0) {
 		for (i = 0; i < -pebs; i++) {
 			err = ubi_eba_unmap_leb(ubi, vol, reserved_pebs + i);
@@ -560,6 +553,24 @@ int ubi_resize_volume(struct ubi_volume_
 		spin_unlock(&ubi->volumes_lock);
 	}
 
+	/*
+	 * When we shrink a volume we have to flush all pending (erase) work.
+	 * Otherwise it can happen that upon next attach UBI finds a LEB with
+	 * lnum > highest_lnum and refuses to attach.
+	 */
+	if (pebs < 0) {
+		err = ubi_wl_flush(ubi, vol_id, UBI_ALL);
+		if (err)
+			goto out_acc;
+	}
+
+	/* Change volume table record */
+	vtbl_rec = ubi->vtbl[vol_id];
+	vtbl_rec.reserved_pebs = cpu_to_be32(reserved_pebs);
+	err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec);
+	if (err)
+		goto out_acc;
+
 	vol->reserved_pebs = reserved_pebs;
 	if (vol->vol_type == UBI_DYNAMIC_VOLUME) {
 		vol->used_ebs = reserved_pebs;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/net/usb/cdc_ncm.c linux-libre-4.1.31-gnu/drivers/net/usb/cdc_ncm.c
--- linux-libre-4.1.30-gnu/drivers/net/usb/cdc_ncm.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/net/usb/cdc_ncm.c	2016-08-22 09:50:48.000000000 -0400
@@ -858,6 +858,13 @@ advance:
 	if (cdc_ncm_init(dev))
 		goto error2;
 
+	/* Some firmwares need a pause here or they will silently fail
+	 * to set up the interface properly.  This value was decided
+	 * empirically on a Sierra Wireless MC7455 running 02.08.02.00
+	 * firmware.
+	 */
+	usleep_range(10000, 20000);
+
 	/* configure data interface */
 	temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
 	if (temp) {
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c linux-libre-4.1.31-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c
--- linux-libre-4.1.30-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/net/wireless/iwlwifi/pcie/drv.c	2016-08-22 09:50:48.000000000 -0400
@@ -422,6 +422,7 @@ static const struct pci_device_id iwl_hw
 /* 8000 Series */
 	{IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0x1010, iwl8260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x24F3, 0x10B0, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0x0130, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0x1130, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0x0132, iwl8260_2ac_cfg)},
@@ -444,6 +445,8 @@ static const struct pci_device_id iwl_hw
 	{IWL_PCI_DEVICE(0x24F4, 0xD030, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0xC050, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0xD050, iwl8260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x24F3, 0xD0B0, iwl8260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x24F3, 0xB0B0, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0x8010, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0x8110, iwl8260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x24F3, 0x9010, iwl8260_2ac_cfg)},
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/of/base.c linux-libre-4.1.31-gnu/drivers/of/base.c
--- linux-libre-4.1.30-gnu/drivers/of/base.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/of/base.c	2016-08-22 09:50:48.000000000 -0400
@@ -112,6 +112,7 @@ static ssize_t of_node_property_read(str
 	return memory_read_from_buffer(buf, count, &offset, pp->value, pp->length);
 }
 
+/* always return newly allocated name, caller must free after use */
 static const char *safe_name(struct kobject *kobj, const char *orig_name)
 {
 	const char *name = orig_name;
@@ -126,9 +127,12 @@ static const char *safe_name(struct kobj
 		name = kasprintf(GFP_KERNEL, "%s#%i", orig_name, ++i);
 	}
 
-	if (name != orig_name)
+	if (name == orig_name) {
+		name = kstrdup(orig_name, GFP_KERNEL);
+	} else {
 		pr_warn("device-tree: Duplicate name in %s, renamed to \"%s\"\n",
 			kobject_name(kobj), name);
+	}
 	return name;
 }
 
@@ -159,6 +163,7 @@ int __of_add_property_sysfs(struct devic
 int __of_attach_node_sysfs(struct device_node *np)
 {
 	const char *name;
+	struct kobject *parent;
 	struct property *pp;
 	int rc;
 
@@ -171,15 +176,16 @@ int __of_attach_node_sysfs(struct device
 	np->kobj.kset = of_kset;
 	if (!np->parent) {
 		/* Nodes without parents are new top level trees */
-		rc = kobject_add(&np->kobj, NULL, "%s",
-				 safe_name(&of_kset->kobj, "base"));
+		name = safe_name(&of_kset->kobj, "base");
+		parent = NULL;
 	} else {
 		name = safe_name(&np->parent->kobj, kbasename(np->full_name));
-		if (!name || !name[0])
-			return -EINVAL;
-
-		rc = kobject_add(&np->kobj, &np->parent->kobj, "%s", name);
+		parent = &np->parent->kobj;
 	}
+	if (!name)
+		return -ENOMEM;
+	rc = kobject_add(&np->kobj, parent, "%s", name);
+	kfree(name);
 	if (rc)
 		return rc;
 
@@ -1756,6 +1762,12 @@ int __of_remove_property(struct device_n
 	return 0;
 }
 
+void __of_sysfs_remove_bin_file(struct device_node *np, struct property *prop)
+{
+	sysfs_remove_bin_file(&np->kobj, &prop->attr);
+	kfree(prop->attr.attr.name);
+}
+
 void __of_remove_property_sysfs(struct device_node *np, struct property *prop)
 {
 	if (!IS_ENABLED(CONFIG_SYSFS))
@@ -1763,7 +1775,7 @@ void __of_remove_property_sysfs(struct d
 
 	/* at early boot, bail here and defer setup to of_init() */
 	if (of_kset && of_node_is_attached(np))
-		sysfs_remove_bin_file(&np->kobj, &prop->attr);
+		__of_sysfs_remove_bin_file(np, prop);
 }
 
 /**
@@ -1833,7 +1845,7 @@ void __of_update_property_sysfs(struct d
 		return;
 
 	if (oldprop)
-		sysfs_remove_bin_file(&np->kobj, &oldprop->attr);
+		__of_sysfs_remove_bin_file(np, oldprop);
 	__of_add_property_sysfs(np, newprop);
 }
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/of/dynamic.c linux-libre-4.1.31-gnu/drivers/of/dynamic.c
--- linux-libre-4.1.30-gnu/drivers/of/dynamic.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/of/dynamic.c	2016-08-22 09:50:48.000000000 -0400
@@ -55,7 +55,7 @@ void __of_detach_node_sysfs(struct devic
 	/* only remove properties if on sysfs */
 	if (of_node_is_attached(np)) {
 		for_each_property_of_node(np, pp)
-			sysfs_remove_bin_file(&np->kobj, &pp->attr);
+			__of_sysfs_remove_bin_file(np, pp);
 		kobject_del(&np->kobj);
 	}
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/of/of_private.h linux-libre-4.1.31-gnu/drivers/of/of_private.h
--- linux-libre-4.1.30-gnu/drivers/of/of_private.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/of/of_private.h	2016-08-22 09:50:48.000000000 -0400
@@ -81,6 +81,9 @@ extern int __of_attach_node_sysfs(struct
 extern void __of_detach_node(struct device_node *np);
 extern void __of_detach_node_sysfs(struct device_node *np);
 
+extern void __of_sysfs_remove_bin_file(struct device_node *np,
+				       struct property *prop);
+
 /* iterators for transactions, used for overlays */
 /* forward iterator */
 #define for_each_transaction_entry(_oft, _te) \
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/pci/quirks.c linux-libre-4.1.31-gnu/drivers/pci/quirks.c
--- linux-libre-4.1.30-gnu/drivers/pci/quirks.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/pci/quirks.c	2016-08-22 09:50:48.000000000 -0400
@@ -3108,13 +3108,15 @@ static void quirk_no_bus_reset(struct pc
 }
 
 /*
- * Atheros AR93xx chips do not behave after a bus reset.  The device will
- * throw a Link Down error on AER-capable systems and regardless of AER,
- * config space of the device is never accessible again and typically
- * causes the system to hang or reset when access is attempted.
+ * Some Atheros AR9xxx and QCA988x chips do not behave after a bus reset.
+ * The device will throw a Link Down error on AER-capable systems and
+ * regardless of AER, config space of the device is never accessible again
+ * and typically causes the system to hang or reset when access is attempted.
  * http://www.spinics.net/lists/linux-pci/msg34797.html
  */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
 
 static void quirk_no_pm_reset(struct pci_dev *dev)
 {
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c linux-libre-4.1.31-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c
--- linux-libre-4.1.30-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/pinctrl/intel/pinctrl-cherryview.c	2016-08-22 09:50:48.000000000 -0400
@@ -160,7 +160,6 @@ struct chv_pin_context {
  * @pctldev: Pointer to the pin controller device
  * @chip: GPIO chip in this pin controller
  * @regs: MMIO registers
- * @lock: Lock to serialize register accesses
  * @intr_lines: Stores mapping between 16 HW interrupt wires and GPIO
  *		offset (in GPIO number space)
  * @community: Community this pinctrl instance represents
@@ -174,7 +173,6 @@ struct chv_pinctrl {
 	struct pinctrl_dev *pctldev;
 	struct gpio_chip chip;
 	void __iomem *regs;
-	spinlock_t lock;
 	unsigned intr_lines[16];
 	const struct chv_community *community;
 	u32 saved_intmask;
@@ -659,6 +657,17 @@ static const struct chv_community *chv_c
 	&southeast_community,
 };
 
+/*
+ * Lock to serialize register accesses
+ *
+ * Due to a silicon issue, a shared lock must be used to prevent
+ * concurrent accesses across the 4 GPIO controllers.
+ *
+ * See Intel Atom Z8000 Processor Series Specification Update (Rev. 005),
+ * errata #CHT34, for further information.
+ */
+static DEFINE_RAW_SPINLOCK(chv_lock);
+
 static void __iomem *chv_padreg(struct chv_pinctrl *pctrl, unsigned offset,
 				unsigned reg)
 {
@@ -720,13 +729,13 @@ static void chv_pin_dbg_show(struct pinc
 	u32 ctrl0, ctrl1;
 	bool locked;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
 	ctrl1 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL1));
 	locked = chv_pad_locked(pctrl, offset);
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	if (ctrl0 & CHV_PADCTRL0_GPIOEN) {
 		seq_puts(s, "GPIO ");
@@ -789,14 +798,14 @@ static int chv_pinmux_set_mux(struct pin
 
 	grp = &pctrl->community->groups[group];
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	/* Check first that the pad is not locked */
 	for (i = 0; i < grp->npins; i++) {
 		if (chv_pad_locked(pctrl, grp->pins[i])) {
 			dev_warn(pctrl->dev, "unable to set mode for locked pin %u\n",
 				 grp->pins[i]);
-			spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EBUSY;
 		}
 	}
@@ -839,7 +848,7 @@ static int chv_pinmux_set_mux(struct pin
 			pin, altfunc->mode, altfunc->invert_oe ? "" : "not ");
 	}
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -853,13 +862,13 @@ static int chv_gpio_request_enable(struc
 	void __iomem *reg;
 	u32 value;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	if (chv_pad_locked(pctrl, offset)) {
 		value = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
 		if (!(value & CHV_PADCTRL0_GPIOEN)) {
 			/* Locked so cannot enable */
-			spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EBUSY;
 		}
 	} else {
@@ -899,7 +908,7 @@ static int chv_gpio_request_enable(struc
 		chv_writel(value, reg);
 	}
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -913,13 +922,13 @@ static void chv_gpio_disable_free(struct
 	void __iomem *reg;
 	u32 value;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
 	value = readl(reg) & ~CHV_PADCTRL0_GPIOEN;
 	chv_writel(value, reg);
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 }
 
 static int chv_gpio_set_direction(struct pinctrl_dev *pctldev,
@@ -931,7 +940,7 @@ static int chv_gpio_set_direction(struct
 	unsigned long flags;
 	u32 ctrl0;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	ctrl0 = readl(reg) & ~CHV_PADCTRL0_GPIOCFG_MASK;
 	if (input)
@@ -940,7 +949,7 @@ static int chv_gpio_set_direction(struct
 		ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPO << CHV_PADCTRL0_GPIOCFG_SHIFT;
 	chv_writel(ctrl0, reg);
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -965,10 +974,10 @@ static int chv_config_get(struct pinctrl
 	u16 arg = 0;
 	u32 term;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 	ctrl1 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL1));
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	term = (ctrl0 & CHV_PADCTRL0_TERM_MASK) >> CHV_PADCTRL0_TERM_SHIFT;
 
@@ -1042,7 +1051,7 @@ static int chv_config_set_pull(struct ch
 	unsigned long flags;
 	u32 ctrl0, pull;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(reg);
 
 	switch (param) {
@@ -1065,7 +1074,7 @@ static int chv_config_set_pull(struct ch
 			pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT;
 			break;
 		default:
-			spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EINVAL;
 		}
 
@@ -1083,7 +1092,7 @@ static int chv_config_set_pull(struct ch
 			pull = CHV_PADCTRL0_TERM_20K << CHV_PADCTRL0_TERM_SHIFT;
 			break;
 		default:
-			spin_unlock_irqrestore(&pctrl->lock, flags);
+			raw_spin_unlock_irqrestore(&chv_lock, flags);
 			return -EINVAL;
 		}
 
@@ -1091,12 +1100,12 @@ static int chv_config_set_pull(struct ch
 		break;
 
 	default:
-		spin_unlock_irqrestore(&pctrl->lock, flags);
+		raw_spin_unlock_irqrestore(&chv_lock, flags);
 		return -EINVAL;
 	}
 
 	chv_writel(ctrl0, reg);
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -1169,9 +1178,12 @@ static int chv_gpio_get(struct gpio_chip
 {
 	struct chv_pinctrl *pctrl = gpiochip_to_pinctrl(chip);
 	int pin = chv_gpio_offset_to_pin(pctrl, offset);
+	unsigned long flags;
 	u32 ctrl0, cfg;
 
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
 	cfg >>= CHV_PADCTRL0_GPIOCFG_SHIFT;
@@ -1189,7 +1201,7 @@ static void chv_gpio_set(struct gpio_chi
 	void __iomem *reg;
 	u32 ctrl0;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
 	ctrl0 = readl(reg);
@@ -1201,7 +1213,7 @@ static void chv_gpio_set(struct gpio_chi
 
 	chv_writel(ctrl0, reg);
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 }
 
 static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
@@ -1209,8 +1221,11 @@ static int chv_gpio_get_direction(struct
 	struct chv_pinctrl *pctrl = gpiochip_to_pinctrl(chip);
 	unsigned pin = chv_gpio_offset_to_pin(pctrl, offset);
 	u32 ctrl0, direction;
+	unsigned long flags;
 
+	raw_spin_lock_irqsave(&chv_lock, flags);
 	ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	direction = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
 	direction >>= CHV_PADCTRL0_GPIOCFG_SHIFT;
@@ -1248,14 +1263,14 @@ static void chv_gpio_irq_ack(struct irq_
 	int pin = chv_gpio_offset_to_pin(pctrl, irqd_to_hwirq(d));
 	u32 intr_line;
 
-	spin_lock(&pctrl->lock);
+	raw_spin_lock(&chv_lock);
 
 	intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 	intr_line &= CHV_PADCTRL0_INTSEL_MASK;
 	intr_line >>= CHV_PADCTRL0_INTSEL_SHIFT;
 	chv_writel(BIT(intr_line), pctrl->regs + CHV_INTSTAT);
 
-	spin_unlock(&pctrl->lock);
+	raw_spin_unlock(&chv_lock);
 }
 
 static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
@@ -1266,7 +1281,7 @@ static void chv_gpio_irq_mask_unmask(str
 	u32 value, intr_line;
 	unsigned long flags;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	intr_line = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 	intr_line &= CHV_PADCTRL0_INTSEL_MASK;
@@ -1279,7 +1294,7 @@ static void chv_gpio_irq_mask_unmask(str
 		value |= BIT(intr_line);
 	chv_writel(value, pctrl->regs + CHV_INTMASK);
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 }
 
 static void chv_gpio_irq_mask(struct irq_data *d)
@@ -1313,6 +1328,7 @@ static unsigned chv_gpio_irq_startup(str
 		unsigned long flags;
 		u32 intsel, value;
 
+		raw_spin_lock_irqsave(&chv_lock, flags);
 		intsel = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
 		intsel &= CHV_PADCTRL0_INTSEL_MASK;
 		intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
@@ -1323,12 +1339,11 @@ static unsigned chv_gpio_irq_startup(str
 		else
 			handler = handle_edge_irq;
 
-		spin_lock_irqsave(&pctrl->lock, flags);
 		if (!pctrl->intr_lines[intsel]) {
 			__irq_set_handler_locked(d->irq, handler);
 			pctrl->intr_lines[intsel] = offset;
 		}
-		spin_unlock_irqrestore(&pctrl->lock, flags);
+		raw_spin_unlock_irqrestore(&chv_lock, flags);
 	}
 
 	chv_gpio_irq_unmask(d);
@@ -1344,7 +1359,7 @@ static int chv_gpio_irq_type(struct irq_
 	unsigned long flags;
 	u32 value;
 
-	spin_lock_irqsave(&pctrl->lock, flags);
+	raw_spin_lock_irqsave(&chv_lock, flags);
 
 	/*
 	 * Pins which can be used as shared interrupt are configured in
@@ -1393,7 +1408,7 @@ static int chv_gpio_irq_type(struct irq_
 	else if (type & IRQ_TYPE_LEVEL_MASK)
 		__irq_set_handler_locked(d->irq, handle_level_irq);
 
-	spin_unlock_irqrestore(&pctrl->lock, flags);
+	raw_spin_unlock_irqrestore(&chv_lock, flags);
 
 	return 0;
 }
@@ -1505,7 +1520,6 @@ static int chv_pinctrl_probe(struct plat
 	if (i == ARRAY_SIZE(chv_communities))
 		return -ENODEV;
 
-	spin_lock_init(&pctrl->lock);
 	pctrl->dev = &pdev->dev;
 
 #ifdef CONFIG_PM_SLEEP
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/platform/x86/hp-wmi.c linux-libre-4.1.31-gnu/drivers/platform/x86/hp-wmi.c
--- linux-libre-4.1.30-gnu/drivers/platform/x86/hp-wmi.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/platform/x86/hp-wmi.c	2016-08-22 09:50:48.000000000 -0400
@@ -723,6 +723,11 @@ static int __init hp_wmi_rfkill_setup(st
 	if (err)
 		return err;
 
+	err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless,
+				   sizeof(wireless), 0);
+	if (err)
+		return err;
+
 	if (wireless & 0x1) {
 		wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
 					   RFKILL_TYPE_WLAN,
@@ -910,7 +915,7 @@ static int __init hp_wmi_bios_setup(stru
 	gps_rfkill = NULL;
 	rfkill2_count = 0;
 
-	if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device))
+	if (hp_wmi_rfkill_setup(device))
 		hp_wmi_rfkill2_setup(device);
 
 	err = device_create_file(&device->dev, &dev_attr_display);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/rtc/rtc-s3c.c linux-libre-4.1.31-gnu/drivers/rtc/rtc-s3c.c
--- linux-libre-4.1.30-gnu/drivers/rtc/rtc-s3c.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/rtc/rtc-s3c.c	2016-08-22 09:50:48.000000000 -0400
@@ -149,12 +149,14 @@ static int s3c_rtc_setfreq(struct s3c_rt
 	if (!is_power_of_2(freq))
 		return -EINVAL;
 
+	s3c_rtc_enable_clk(info);
 	spin_lock_irq(&info->pie_lock);
 
 	if (info->data->set_freq)
 		info->data->set_freq(info, freq);
 
 	spin_unlock_irq(&info->pie_lock);
+	s3c_rtc_disable_clk(info);
 
 	return 0;
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/spi/spi-pxa2xx.c linux-libre-4.1.31-gnu/drivers/spi/spi-pxa2xx.c
--- linux-libre-4.1.30-gnu/drivers/spi/spi-pxa2xx.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/spi/spi-pxa2xx.c	2016-08-22 09:50:48.000000000 -0400
@@ -477,7 +477,14 @@ static void reset_sccr1(struct driver_da
 	u32 sccr1_reg;
 
 	sccr1_reg = pxa2xx_spi_read(drv_data, SSCR1) & ~drv_data->int_cr1;
-	sccr1_reg &= ~SSCR1_RFT;
+	switch (drv_data->ssp_type) {
+	case QUARK_X1000_SSP:
+		sccr1_reg &= ~QUARK_X1000_SSCR1_RFT;
+		break;
+	default:
+		sccr1_reg &= ~SSCR1_RFT;
+		break;
+	}
 	sccr1_reg |= chip->threshold;
 	pxa2xx_spi_write(drv_data, SSCR1, sccr1_reg);
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/staging/iio/accel/sca3000_core.c linux-libre-4.1.31-gnu/drivers/staging/iio/accel/sca3000_core.c
--- linux-libre-4.1.30-gnu/drivers/staging/iio/accel/sca3000_core.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/staging/iio/accel/sca3000_core.c	2016-08-22 09:50:48.000000000 -0400
@@ -595,7 +595,7 @@ static ssize_t sca3000_read_frequency(st
 		goto error_ret_mut;
 	ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL);
 	mutex_unlock(&st->lock);
-	if (ret)
+	if (ret < 0)
 		goto error_ret;
 	val = ret;
 	if (base_freq > 0)
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/target/iscsi/iscsi_target.c linux-libre-4.1.31-gnu/drivers/target/iscsi/iscsi_target.c
--- linux-libre-4.1.30-gnu/drivers/target/iscsi/iscsi_target.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/target/iscsi/iscsi_target.c	2016-08-22 09:50:48.000000000 -0400
@@ -500,7 +500,8 @@ static void iscsit_aborted_task(struct i
 	bool scsi_cmd = (cmd->iscsi_opcode == ISCSI_OP_SCSI_CMD);
 
 	spin_lock_bh(&conn->cmd_lock);
-	if (!list_empty(&cmd->i_conn_node))
+	if (!list_empty(&cmd->i_conn_node) &&
+	    !(cmd->se_cmd.transport_state & CMD_T_FABRIC_STOP))
 		list_del_init(&cmd->i_conn_node);
 	spin_unlock_bh(&conn->cmd_lock);
 
@@ -4215,6 +4216,7 @@ transport_err:
 
 static void iscsit_release_commands_from_conn(struct iscsi_conn *conn)
 {
+	LIST_HEAD(tmp_list);
 	struct iscsi_cmd *cmd = NULL, *cmd_tmp = NULL;
 	struct iscsi_session *sess = conn->sess;
 	/*
@@ -4223,18 +4225,26 @@ static void iscsit_release_commands_from
 	 * has been reset -> returned sleeping pre-handler state.
 	 */
 	spin_lock_bh(&conn->cmd_lock);
-	list_for_each_entry_safe(cmd, cmd_tmp, &conn->conn_cmd_list, i_conn_node) {
+	list_splice_init(&conn->conn_cmd_list, &tmp_list);
+
+	list_for_each_entry(cmd, &tmp_list, i_conn_node) {
+		struct se_cmd *se_cmd = &cmd->se_cmd;
+
+		if (se_cmd->se_tfo != NULL) {
+			spin_lock(&se_cmd->t_state_lock);
+			se_cmd->transport_state |= CMD_T_FABRIC_STOP;
+			spin_unlock(&se_cmd->t_state_lock);
+		}
+	}
+	spin_unlock_bh(&conn->cmd_lock);
 
+	list_for_each_entry_safe(cmd, cmd_tmp, &tmp_list, i_conn_node) {
 		list_del_init(&cmd->i_conn_node);
-		spin_unlock_bh(&conn->cmd_lock);
 
 		iscsit_increment_maxcmdsn(cmd, sess);
-
 		iscsit_free_cmd(cmd, true);
 
-		spin_lock_bh(&conn->cmd_lock);
 	}
-	spin_unlock_bh(&conn->cmd_lock);
 }
 
 static void iscsit_stop_timers_for_cmds(
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/target/iscsi/iscsi_target_login.c linux-libre-4.1.31-gnu/drivers/target/iscsi/iscsi_target_login.c
--- linux-libre-4.1.30-gnu/drivers/target/iscsi/iscsi_target_login.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/target/iscsi/iscsi_target_login.c	2016-08-22 09:50:48.000000000 -0400
@@ -1415,8 +1415,9 @@ static int __iscsi_target_login_thread(s
 	}
 	login->zero_tsih = zero_tsih;
 
-	conn->sess->se_sess->sup_prot_ops =
-		conn->conn_transport->iscsit_get_sup_prot_ops(conn);
+	if (conn->sess)
+		conn->sess->se_sess->sup_prot_ops =
+			conn->conn_transport->iscsit_get_sup_prot_ops(conn);
 
 	tpg = conn->tpg;
 	if (!tpg) {
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/target/target_core_transport.c linux-libre-4.1.31-gnu/drivers/target/target_core_transport.c
--- linux-libre-4.1.30-gnu/drivers/target/target_core_transport.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/target/target_core_transport.c	2016-08-22 09:50:48.000000000 -0400
@@ -2531,15 +2531,9 @@ static void target_release_cmd_kref(stru
 	struct se_session *se_sess = se_cmd->se_sess;
 	bool fabric_stop;
 
-	if (list_empty(&se_cmd->se_cmd_list)) {
-		spin_unlock(&se_sess->sess_cmd_lock);
-		target_free_cmd_mem(se_cmd);
-		se_cmd->se_tfo->release_cmd(se_cmd);
-		return;
-	}
-
 	spin_lock(&se_cmd->t_state_lock);
-	fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP);
+	fabric_stop = (se_cmd->transport_state & CMD_T_FABRIC_STOP) &&
+		      (se_cmd->transport_state & CMD_T_ABORTED);
 	spin_unlock(&se_cmd->t_state_lock);
 
 	if (se_cmd->cmd_wait_set || fabric_stop) {
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/tty/serial/atmel_serial.c linux-libre-4.1.31-gnu/drivers/tty/serial/atmel_serial.c
--- linux-libre-4.1.30-gnu/drivers/tty/serial/atmel_serial.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/tty/serial/atmel_serial.c	2016-08-22 09:50:48.000000000 -0400
@@ -88,37 +88,6 @@ static void atmel_stop_rx(struct uart_po
 
 #define ATMEL_ISR_PASS_LIMIT	256
 
-/* UART registers. CR is write-only, hence no GET macro */
-#define UART_PUT_CR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_CR)
-#define UART_GET_MR(port)	__raw_readl((port)->membase + ATMEL_US_MR)
-#define UART_PUT_MR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_MR)
-#define UART_PUT_IER(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_IER)
-#define UART_PUT_IDR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_IDR)
-#define UART_GET_IMR(port)	__raw_readl((port)->membase + ATMEL_US_IMR)
-#define UART_GET_CSR(port)	__raw_readl((port)->membase + ATMEL_US_CSR)
-#define UART_GET_CHAR(port)	__raw_readl((port)->membase + ATMEL_US_RHR)
-#define UART_PUT_CHAR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_THR)
-#define UART_GET_BRGR(port)	__raw_readl((port)->membase + ATMEL_US_BRGR)
-#define UART_PUT_BRGR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_BRGR)
-#define UART_PUT_RTOR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_RTOR)
-#define UART_PUT_TTGR(port, v)	__raw_writel(v, (port)->membase + ATMEL_US_TTGR)
-#define UART_GET_IP_NAME(port)	__raw_readl((port)->membase + ATMEL_US_NAME)
-#define UART_GET_IP_VERSION(port) __raw_readl((port)->membase + ATMEL_US_VERSION)
-
- /* PDC registers */
-#define UART_PUT_PTCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_PTCR)
-#define UART_GET_PTSR(port)	__raw_readl((port)->membase + ATMEL_PDC_PTSR)
-
-#define UART_PUT_RPR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RPR)
-#define UART_GET_RPR(port)	__raw_readl((port)->membase + ATMEL_PDC_RPR)
-#define UART_PUT_RCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RCR)
-#define UART_PUT_RNPR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RNPR)
-#define UART_PUT_RNCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RNCR)
-
-#define UART_PUT_TPR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_TPR)
-#define UART_PUT_TCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_TCR)
-#define UART_GET_TCR(port)	__raw_readl((port)->membase + ATMEL_PDC_TCR)
-
 struct atmel_dma_buffer {
 	unsigned char	*buf;
 	dma_addr_t	dma_addr;
@@ -211,6 +180,16 @@ to_atmel_uart_port(struct uart_port *uar
 	return container_of(uart, struct atmel_uart_port, uart);
 }
 
+static inline u32 atmel_uart_readl(struct uart_port *port, u32 reg)
+{
+	return __raw_readl(port->membase + reg);
+}
+
+static inline void atmel_uart_writel(struct uart_port *port, u32 reg, u32 value)
+{
+	__raw_writel(value, port->membase + reg);
+}
+
 #ifdef CONFIG_SERIAL_ATMEL_PDC
 static bool atmel_use_pdc_rx(struct uart_port *port)
 {
@@ -256,7 +235,7 @@ static unsigned int atmel_get_lines_stat
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	unsigned int status, ret = 0;
 
-	status = UART_GET_CSR(port);
+	status = atmel_uart_readl(port, ATMEL_US_CSR);
 
 	mctrl_gpio_get(atmel_port->gpios, &ret);
 
@@ -303,9 +282,9 @@ static int atmel_config_rs485(struct uar
 	unsigned int mode;
 
 	/* Disable interrupts */
-	UART_PUT_IDR(port, atmel_port->tx_done_mask);
+	atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask);
 
-	mode = UART_GET_MR(port);
+	mode = atmel_uart_readl(port, ATMEL_US_MR);
 
 	/* Resetting serial mode to RS232 (0x0) */
 	mode &= ~ATMEL_US_USMODE;
@@ -315,7 +294,8 @@ static int atmel_config_rs485(struct uar
 	if (rs485conf->flags & SER_RS485_ENABLED) {
 		dev_dbg(port->dev, "Setting UART to RS485\n");
 		atmel_port->tx_done_mask = ATMEL_US_TXEMPTY;
-		UART_PUT_TTGR(port, rs485conf->delay_rts_after_send);
+		atmel_uart_writel(port, ATMEL_US_TTGR,
+				  rs485conf->delay_rts_after_send);
 		mode |= ATMEL_US_USMODE_RS485;
 	} else {
 		dev_dbg(port->dev, "Setting UART to RS232\n");
@@ -325,10 +305,10 @@ static int atmel_config_rs485(struct uar
 		else
 			atmel_port->tx_done_mask = ATMEL_US_TXRDY;
 	}
-	UART_PUT_MR(port, mode);
+	atmel_uart_writel(port, ATMEL_US_MR, mode);
 
 	/* Enable interrupts */
-	UART_PUT_IER(port, atmel_port->tx_done_mask);
+	atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask);
 
 	return 0;
 }
@@ -338,7 +318,9 @@ static int atmel_config_rs485(struct uar
  */
 static u_int atmel_tx_empty(struct uart_port *port)
 {
-	return (UART_GET_CSR(port) & ATMEL_US_TXEMPTY) ? TIOCSER_TEMT : 0;
+	return (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXEMPTY) ?
+		TIOCSER_TEMT :
+		0;
 }
 
 /*
@@ -347,13 +329,14 @@ static u_int atmel_tx_empty(struct uart_
 static void atmel_set_mctrl(struct uart_port *port, u_int mctrl)
 {
 	unsigned int control = 0;
-	unsigned int mode = UART_GET_MR(port);
+	unsigned int mode = atmel_uart_readl(port, ATMEL_US_MR);
 	unsigned int rts_paused, rts_ready;
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 
 	/* override mode to RS485 if needed, otherwise keep the current mode */
 	if (port->rs485.flags & SER_RS485_ENABLED) {
-		UART_PUT_TTGR(port, port->rs485.delay_rts_after_send);
+		atmel_uart_writel(port, ATMEL_US_TTGR,
+				  port->rs485.delay_rts_after_send);
 		mode &= ~ATMEL_US_USMODE;
 		mode |= ATMEL_US_USMODE_RS485;
 	}
@@ -383,7 +366,7 @@ static void atmel_set_mctrl(struct uart_
 	else
 		control |= ATMEL_US_DTRDIS;
 
-	UART_PUT_CR(port, control);
+	atmel_uart_writel(port, ATMEL_US_CR, control);
 
 	mctrl_gpio_set(atmel_port->gpios, mctrl);
 
@@ -394,7 +377,7 @@ static void atmel_set_mctrl(struct uart_
 	else
 		mode |= ATMEL_US_CHMODE_NORMAL;
 
-	UART_PUT_MR(port, mode);
+	atmel_uart_writel(port, ATMEL_US_MR, mode);
 }
 
 /*
@@ -405,7 +388,7 @@ static u_int atmel_get_mctrl(struct uart
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	unsigned int ret = 0, status;
 
-	status = UART_GET_CSR(port);
+	status = atmel_uart_readl(port, ATMEL_US_CSR);
 
 	/*
 	 * The control signals are active low.
@@ -431,10 +414,10 @@ static void atmel_stop_tx(struct uart_po
 
 	if (atmel_use_pdc_tx(port)) {
 		/* disable PDC transmit */
-		UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS);
+		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS);
 	}
 	/* Disable interrupts */
-	UART_PUT_IDR(port, atmel_port->tx_done_mask);
+	atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask);
 
 	if ((port->rs485.flags & SER_RS485_ENABLED) &&
 	    !(port->rs485.flags & SER_RS485_RX_DURING_TX))
@@ -448,21 +431,23 @@ static void atmel_start_tx(struct uart_p
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 
-	if (atmel_use_pdc_tx(port)) {
-		if (UART_GET_PTSR(port) & ATMEL_PDC_TXTEN)
-			/* The transmitter is already running.  Yes, we
-			   really need this.*/
-			return;
+	if (atmel_use_pdc_tx(port) && (atmel_uart_readl(port, ATMEL_PDC_PTSR)
+				       & ATMEL_PDC_TXTEN))
+		/* The transmitter is already running.  Yes, we
+		   really need this.*/
+		return;
 
+	if (atmel_use_pdc_tx(port) || atmel_use_dma_tx(port))
 		if ((port->rs485.flags & SER_RS485_ENABLED) &&
 		    !(port->rs485.flags & SER_RS485_RX_DURING_TX))
 			atmel_stop_rx(port);
 
+	if (atmel_use_pdc_tx(port))
 		/* re-enable PDC transmit */
-		UART_PUT_PTCR(port, ATMEL_PDC_TXTEN);
-	}
+		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN);
+
 	/* Enable interrupts */
-	UART_PUT_IER(port, atmel_port->tx_done_mask);
+	atmel_uart_writel(port, ATMEL_US_IER, atmel_port->tx_done_mask);
 }
 
 /*
@@ -470,17 +455,19 @@ static void atmel_start_tx(struct uart_p
  */
 static void atmel_start_rx(struct uart_port *port)
 {
-	UART_PUT_CR(port, ATMEL_US_RSTSTA);  /* reset status and receiver */
+	/* reset status and receiver */
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA);
 
-	UART_PUT_CR(port, ATMEL_US_RXEN);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXEN);
 
 	if (atmel_use_pdc_rx(port)) {
 		/* enable PDC controller */
-		UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT |
-			port->read_status_mask);
-		UART_PUT_PTCR(port, ATMEL_PDC_RXTEN);
+		atmel_uart_writel(port, ATMEL_US_IER,
+				  ATMEL_US_ENDRX | ATMEL_US_TIMEOUT |
+				  port->read_status_mask);
+		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN);
 	} else {
-		UART_PUT_IER(port, ATMEL_US_RXRDY);
+		atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY);
 	}
 }
 
@@ -489,15 +476,16 @@ static void atmel_start_rx(struct uart_p
  */
 static void atmel_stop_rx(struct uart_port *port)
 {
-	UART_PUT_CR(port, ATMEL_US_RXDIS);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RXDIS);
 
 	if (atmel_use_pdc_rx(port)) {
 		/* disable PDC receive */
-		UART_PUT_PTCR(port, ATMEL_PDC_RXTDIS);
-		UART_PUT_IDR(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT |
-			port->read_status_mask);
+		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS);
+		atmel_uart_writel(port, ATMEL_US_IDR,
+				  ATMEL_US_ENDRX | ATMEL_US_TIMEOUT |
+				  port->read_status_mask);
 	} else {
-		UART_PUT_IDR(port, ATMEL_US_RXRDY);
+		atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXRDY);
 	}
 }
 
@@ -537,7 +525,7 @@ static void atmel_enable_ms(struct uart_
 	else
 		ier |= ATMEL_US_DCDIC;
 
-	UART_PUT_IER(port, ier);
+	atmel_uart_writel(port, ATMEL_US_IER, ier);
 }
 
 /*
@@ -576,7 +564,7 @@ static void atmel_disable_ms(struct uart
 	else
 		idr |= ATMEL_US_DCDIC;
 
-	UART_PUT_IDR(port, idr);
+	atmel_uart_writel(port, ATMEL_US_IDR, idr);
 }
 
 /*
@@ -585,9 +573,11 @@ static void atmel_disable_ms(struct uart
 static void atmel_break_ctl(struct uart_port *port, int break_state)
 {
 	if (break_state != 0)
-		UART_PUT_CR(port, ATMEL_US_STTBRK);	/* start break */
+		/* start break */
+		atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTBRK);
 	else
-		UART_PUT_CR(port, ATMEL_US_STPBRK);	/* stop break */
+		/* stop break */
+		atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STPBRK);
 }
 
 /*
@@ -621,7 +611,7 @@ atmel_buffer_rx_char(struct uart_port *p
 static void atmel_pdc_rxerr(struct uart_port *port, unsigned int status)
 {
 	/* clear error */
-	UART_PUT_CR(port, ATMEL_US_RSTSTA);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA);
 
 	if (status & ATMEL_US_RXBRK) {
 		/* ignore side-effect */
@@ -644,9 +634,9 @@ static void atmel_rx_chars(struct uart_p
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	unsigned int status, ch;
 
-	status = UART_GET_CSR(port);
+	status = atmel_uart_readl(port, ATMEL_US_CSR);
 	while (status & ATMEL_US_RXRDY) {
-		ch = UART_GET_CHAR(port);
+		ch = atmel_uart_readl(port, ATMEL_US_RHR);
 
 		/*
 		 * note that the error handling code is
@@ -657,12 +647,13 @@ static void atmel_rx_chars(struct uart_p
 			     || atmel_port->break_active)) {
 
 			/* clear error */
-			UART_PUT_CR(port, ATMEL_US_RSTSTA);
+			atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA);
 
 			if (status & ATMEL_US_RXBRK
 			    && !atmel_port->break_active) {
 				atmel_port->break_active = 1;
-				UART_PUT_IER(port, ATMEL_US_RXBRK);
+				atmel_uart_writel(port, ATMEL_US_IER,
+						  ATMEL_US_RXBRK);
 			} else {
 				/*
 				 * This is either the end-of-break
@@ -671,14 +662,15 @@ static void atmel_rx_chars(struct uart_p
 				 * being set. In both cases, the next
 				 * RXBRK will indicate start-of-break.
 				 */
-				UART_PUT_IDR(port, ATMEL_US_RXBRK);
+				atmel_uart_writel(port, ATMEL_US_IDR,
+						  ATMEL_US_RXBRK);
 				status &= ~ATMEL_US_RXBRK;
 				atmel_port->break_active = 0;
 			}
 		}
 
 		atmel_buffer_rx_char(port, status, ch);
-		status = UART_GET_CSR(port);
+		status = atmel_uart_readl(port, ATMEL_US_CSR);
 	}
 
 	tasklet_schedule(&atmel_port->tasklet);
@@ -693,16 +685,18 @@ static void atmel_tx_chars(struct uart_p
 	struct circ_buf *xmit = &port->state->xmit;
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 
-	if (port->x_char && UART_GET_CSR(port) & atmel_port->tx_done_mask) {
-		UART_PUT_CHAR(port, port->x_char);
+	if (port->x_char &&
+	    (atmel_uart_readl(port, ATMEL_US_CSR) & atmel_port->tx_done_mask)) {
+		atmel_uart_writel(port, ATMEL_US_THR, port->x_char);
 		port->icount.tx++;
 		port->x_char = 0;
 	}
 	if (uart_circ_empty(xmit) || uart_tx_stopped(port))
 		return;
 
-	while (UART_GET_CSR(port) & atmel_port->tx_done_mask) {
-		UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
+	while (atmel_uart_readl(port, ATMEL_US_CSR) &
+	       atmel_port->tx_done_mask) {
+		atmel_uart_writel(port, ATMEL_US_THR, xmit->buf[xmit->tail]);
 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
 		port->icount.tx++;
 		if (uart_circ_empty(xmit))
@@ -714,7 +708,8 @@ static void atmel_tx_chars(struct uart_p
 
 	if (!uart_circ_empty(xmit))
 		/* Enable interrupts */
-		UART_PUT_IER(port, atmel_port->tx_done_mask);
+		atmel_uart_writel(port, ATMEL_US_IER,
+				  atmel_port->tx_done_mask);
 }
 
 static void atmel_complete_tx_dma(void *arg)
@@ -934,14 +929,14 @@ static void atmel_rx_from_dma(struct uar
 
 
 	/* Reset the UART timeout early so that we don't miss one */
-	UART_PUT_CR(port, ATMEL_US_STTTO);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO);
 	dmastat = dmaengine_tx_status(chan,
 				atmel_port->cookie_rx,
 				&state);
 	/* Restart a new tasklet if DMA status is error */
 	if (dmastat == DMA_ERROR) {
 		dev_dbg(port->dev, "Get residue error, restart tasklet\n");
-		UART_PUT_IER(port, ATMEL_US_TIMEOUT);
+		atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT);
 		tasklet_schedule(&atmel_port->tasklet);
 		return;
 	}
@@ -1007,7 +1002,7 @@ static void atmel_rx_from_dma(struct uar
 	tty_flip_buffer_push(tport);
 	spin_lock(&port->lock);
 
-	UART_PUT_IER(port, ATMEL_US_TIMEOUT);
+	atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_TIMEOUT);
 }
 
 static int atmel_prepare_rx_dma(struct uart_port *port)
@@ -1117,8 +1112,8 @@ atmel_handle_receive(struct uart_port *p
 		 * the moment.
 		 */
 		if (pending & (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT)) {
-			UART_PUT_IDR(port, (ATMEL_US_ENDRX
-						| ATMEL_US_TIMEOUT));
+			atmel_uart_writel(port, ATMEL_US_IDR,
+					  (ATMEL_US_ENDRX | ATMEL_US_TIMEOUT));
 			tasklet_schedule(&atmel_port->tasklet);
 		}
 
@@ -1129,7 +1124,8 @@ atmel_handle_receive(struct uart_port *p
 
 	if (atmel_use_dma_rx(port)) {
 		if (pending & ATMEL_US_TIMEOUT) {
-			UART_PUT_IDR(port, ATMEL_US_TIMEOUT);
+			atmel_uart_writel(port, ATMEL_US_IDR,
+					  ATMEL_US_TIMEOUT);
 			tasklet_schedule(&atmel_port->tasklet);
 		}
 	}
@@ -1142,8 +1138,8 @@ atmel_handle_receive(struct uart_port *p
 		 * End of break detected. If it came along with a
 		 * character, atmel_rx_chars will handle it.
 		 */
-		UART_PUT_CR(port, ATMEL_US_RSTSTA);
-		UART_PUT_IDR(port, ATMEL_US_RXBRK);
+		atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA);
+		atmel_uart_writel(port, ATMEL_US_IDR, ATMEL_US_RXBRK);
 		atmel_port->break_active = 0;
 	}
 }
@@ -1158,7 +1154,8 @@ atmel_handle_transmit(struct uart_port *
 
 	if (pending & atmel_port->tx_done_mask) {
 		/* Either PDC or interrupt transmission */
-		UART_PUT_IDR(port, atmel_port->tx_done_mask);
+		atmel_uart_writel(port, ATMEL_US_IDR,
+				  atmel_port->tx_done_mask);
 		tasklet_schedule(&atmel_port->tasklet);
 	}
 }
@@ -1193,7 +1190,7 @@ static irqreturn_t atmel_interrupt(int i
 
 	do {
 		status = atmel_get_lines_status(port);
-		mask = UART_GET_IMR(port);
+		mask = atmel_uart_readl(port, ATMEL_US_IMR);
 		pending = status & mask;
 		if (!gpio_handled) {
 			/*
@@ -1219,7 +1216,7 @@ static irqreturn_t atmel_interrupt(int i
 		if (atmel_port->suspended) {
 			atmel_port->pending |= pending;
 			atmel_port->pending_status = status;
-			UART_PUT_IDR(port, mask);
+			atmel_uart_writel(port, ATMEL_US_IDR, mask);
 			pm_system_wakeup();
 			break;
 		}
@@ -1256,7 +1253,7 @@ static void atmel_tx_pdc(struct uart_por
 	int count;
 
 	/* nothing left to transmit? */
-	if (UART_GET_TCR(port))
+	if (atmel_uart_readl(port, ATMEL_PDC_TCR))
 		return;
 
 	xmit->tail += pdc->ofs;
@@ -1268,7 +1265,7 @@ static void atmel_tx_pdc(struct uart_por
 	/* more to transmit - setup next transfer */
 
 	/* disable PDC transmit */
-	UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS);
+	atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS);
 
 	if (!uart_circ_empty(xmit) && !uart_tx_stopped(port)) {
 		dma_sync_single_for_device(port->dev,
@@ -1279,12 +1276,14 @@ static void atmel_tx_pdc(struct uart_por
 		count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
 		pdc->ofs = count;
 
-		UART_PUT_TPR(port, pdc->dma_addr + xmit->tail);
-		UART_PUT_TCR(port, count);
+		atmel_uart_writel(port, ATMEL_PDC_TPR,
+				  pdc->dma_addr + xmit->tail);
+		atmel_uart_writel(port, ATMEL_PDC_TCR, count);
 		/* re-enable PDC transmit */
-		UART_PUT_PTCR(port, ATMEL_PDC_TXTEN);
+		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN);
 		/* Enable interrupts */
-		UART_PUT_IER(port, atmel_port->tx_done_mask);
+		atmel_uart_writel(port, ATMEL_US_IER,
+				  atmel_port->tx_done_mask);
 	} else {
 		if ((port->rs485.flags & SER_RS485_ENABLED) &&
 		    !(port->rs485.flags & SER_RS485_RX_DURING_TX)) {
@@ -1410,10 +1409,10 @@ static void atmel_rx_from_pdc(struct uar
 
 	do {
 		/* Reset the UART timeout early so that we don't miss one */
-		UART_PUT_CR(port, ATMEL_US_STTTO);
+		atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO);
 
 		pdc = &atmel_port->pdc_rx[rx_idx];
-		head = UART_GET_RPR(port) - pdc->dma_addr;
+		head = atmel_uart_readl(port, ATMEL_PDC_RPR) - pdc->dma_addr;
 		tail = pdc->ofs;
 
 		/* If the PDC has switched buffers, RPR won't contain
@@ -1456,8 +1455,8 @@ static void atmel_rx_from_pdc(struct uar
 		 */
 		if (head >= pdc->dma_size) {
 			pdc->ofs = 0;
-			UART_PUT_RNPR(port, pdc->dma_addr);
-			UART_PUT_RNCR(port, pdc->dma_size);
+			atmel_uart_writel(port, ATMEL_PDC_RNPR, pdc->dma_addr);
+			atmel_uart_writel(port, ATMEL_PDC_RNCR, pdc->dma_size);
 
 			rx_idx = !rx_idx;
 			atmel_port->pdc_rx_idx = rx_idx;
@@ -1472,7 +1471,8 @@ static void atmel_rx_from_pdc(struct uar
 	tty_flip_buffer_push(tport);
 	spin_lock(&port->lock);
 
-	UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT);
+	atmel_uart_writel(port, ATMEL_US_IER,
+			  ATMEL_US_ENDRX | ATMEL_US_TIMEOUT);
 }
 
 static int atmel_prepare_rx_pdc(struct uart_port *port)
@@ -1505,11 +1505,12 @@ static int atmel_prepare_rx_pdc(struct u
 
 	atmel_port->pdc_rx_idx = 0;
 
-	UART_PUT_RPR(port, atmel_port->pdc_rx[0].dma_addr);
-	UART_PUT_RCR(port, PDC_BUFFER_SIZE);
+	atmel_uart_writel(port, ATMEL_PDC_RPR, atmel_port->pdc_rx[0].dma_addr);
+	atmel_uart_writel(port, ATMEL_PDC_RCR, PDC_BUFFER_SIZE);
 
-	UART_PUT_RNPR(port, atmel_port->pdc_rx[1].dma_addr);
-	UART_PUT_RNCR(port, PDC_BUFFER_SIZE);
+	atmel_uart_writel(port, ATMEL_PDC_RNPR,
+			  atmel_port->pdc_rx[1].dma_addr);
+	atmel_uart_writel(port, ATMEL_PDC_RNCR, PDC_BUFFER_SIZE);
 
 	return 0;
 }
@@ -1666,7 +1667,7 @@ static void atmel_set_ops(struct uart_po
 static void atmel_get_ip_name(struct uart_port *port)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
-	int name = UART_GET_IP_NAME(port);
+	int name = atmel_uart_readl(port, ATMEL_US_NAME);
 	u32 version;
 	int usart, uart;
 	/* usart and uart ascii */
@@ -1683,7 +1684,7 @@ static void atmel_get_ip_name(struct uar
 		atmel_port->is_usart = false;
 	} else {
 		/* fallback for older SoCs: use version field */
-		version = UART_GET_IP_VERSION(port);
+		version = atmel_uart_readl(port, ATMEL_US_VERSION);
 		switch (version) {
 		case 0x302:
 		case 0x10213:
@@ -1755,7 +1756,7 @@ static int atmel_startup(struct uart_por
 	 * request_irq() is called we could get stuck trying to
 	 * handle an unexpected interrupt
 	 */
-	UART_PUT_IDR(port, -1);
+	atmel_uart_writel(port, ATMEL_US_IDR, -1);
 	atmel_port->ms_irq_enabled = false;
 
 	/*
@@ -1803,9 +1804,9 @@ static int atmel_startup(struct uart_por
 	/*
 	 * Finally, enable the serial port
 	 */
-	UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
 	/* enable xmit & rcvr */
-	UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
 
 	setup_timer(&atmel_port->uart_timer,
 			atmel_uart_timer_callback,
@@ -1818,13 +1819,14 @@ static int atmel_startup(struct uart_por
 					jiffies + uart_poll_timeout(port));
 		/* set USART timeout */
 		} else {
-			UART_PUT_RTOR(port, PDC_RX_TIMEOUT);
-			UART_PUT_CR(port, ATMEL_US_STTTO);
+			atmel_uart_writel(port, ATMEL_US_RTOR, PDC_RX_TIMEOUT);
+			atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO);
 
-			UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT);
+			atmel_uart_writel(port, ATMEL_US_IER,
+					  ATMEL_US_ENDRX | ATMEL_US_TIMEOUT);
 		}
 		/* enable PDC controller */
-		UART_PUT_PTCR(port, ATMEL_PDC_RXTEN);
+		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN);
 	} else if (atmel_use_dma_rx(port)) {
 		/* set UART timeout */
 		if (!atmel_port->is_usart) {
@@ -1832,14 +1834,15 @@ static int atmel_startup(struct uart_por
 					jiffies + uart_poll_timeout(port));
 		/* set USART timeout */
 		} else {
-			UART_PUT_RTOR(port, PDC_RX_TIMEOUT);
-			UART_PUT_CR(port, ATMEL_US_STTTO);
+			atmel_uart_writel(port, ATMEL_US_RTOR, PDC_RX_TIMEOUT);
+			atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_STTTO);
 
-			UART_PUT_IER(port, ATMEL_US_TIMEOUT);
+			atmel_uart_writel(port, ATMEL_US_IER,
+					  ATMEL_US_TIMEOUT);
 		}
 	} else {
 		/* enable receive only */
-		UART_PUT_IER(port, ATMEL_US_RXRDY);
+		atmel_uart_writel(port, ATMEL_US_IER, ATMEL_US_RXRDY);
 	}
 
 	return 0;
@@ -1859,7 +1862,7 @@ static void atmel_flush_buffer(struct ua
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 
 	if (atmel_use_pdc_tx(port)) {
-		UART_PUT_TCR(port, 0);
+		atmel_uart_writel(port, ATMEL_PDC_TCR, 0);
 		atmel_port->pdc_tx.ofs = 0;
 	}
 }
@@ -1891,8 +1894,8 @@ static void atmel_shutdown(struct uart_p
 	atmel_stop_rx(port);
 	atmel_stop_tx(port);
 
-	UART_PUT_CR(port, ATMEL_US_RSTSTA);
-	UART_PUT_IDR(port, -1);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA);
+	atmel_uart_writel(port, ATMEL_US_IDR, -1);
 
 
 	/*
@@ -1937,12 +1940,12 @@ static void atmel_serial_pm(struct uart_
 		clk_prepare_enable(atmel_port->clk);
 
 		/* re-enable interrupts if we disabled some on suspend */
-		UART_PUT_IER(port, atmel_port->backup_imr);
+		atmel_uart_writel(port, ATMEL_US_IER, atmel_port->backup_imr);
 		break;
 	case 3:
 		/* Back up the interrupt mask and disable all interrupts */
-		atmel_port->backup_imr = UART_GET_IMR(port);
-		UART_PUT_IDR(port, -1);
+		atmel_port->backup_imr = atmel_uart_readl(port, ATMEL_US_IMR);
+		atmel_uart_writel(port, ATMEL_US_IDR, -1);
 
 		/*
 		 * Disable the peripheral clock for this serial port.
@@ -1965,7 +1968,7 @@ static void atmel_set_termios(struct uar
 	unsigned int old_mode, mode, imr, quot, baud;
 
 	/* save the current mode register */
-	mode = old_mode = UART_GET_MR(port);
+	mode = old_mode = atmel_uart_readl(port, ATMEL_US_MR);
 
 	/* reset the mode, clock divisor, parity, stop bits and data size */
 	mode &= ~(ATMEL_US_USCLKS | ATMEL_US_CHRL | ATMEL_US_NBSTOP |
@@ -2024,7 +2027,7 @@ static void atmel_set_termios(struct uar
 
 	if (atmel_use_pdc_rx(port))
 		/* need to enable error interrupts */
-		UART_PUT_IER(port, port->read_status_mask);
+		atmel_uart_writel(port, ATMEL_US_IER, port->read_status_mask);
 
 	/*
 	 * Characters to ignore
@@ -2051,15 +2054,16 @@ static void atmel_set_termios(struct uar
 	 * transmitter is empty if requested by the caller, so there's
 	 * no need to wait for it here.
 	 */
-	imr = UART_GET_IMR(port);
-	UART_PUT_IDR(port, -1);
+	imr = atmel_uart_readl(port, ATMEL_US_IMR);
+	atmel_uart_writel(port, ATMEL_US_IDR, -1);
 
 	/* disable receiver and transmitter */
-	UART_PUT_CR(port, ATMEL_US_TXDIS | ATMEL_US_RXDIS);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS | ATMEL_US_RXDIS);
 
 	/* mode */
 	if (port->rs485.flags & SER_RS485_ENABLED) {
-		UART_PUT_TTGR(port, port->rs485.delay_rts_after_send);
+		atmel_uart_writel(port, ATMEL_US_TTGR,
+				  port->rs485.delay_rts_after_send);
 		mode |= ATMEL_US_USMODE_RS485;
 	} else if (termios->c_cflag & CRTSCTS) {
 		/* RS232 with hardware handshake (RTS/CTS) */
@@ -2070,7 +2074,7 @@ static void atmel_set_termios(struct uar
 	}
 
 	/* set the mode, clock divisor, parity, stop bits and data size */
-	UART_PUT_MR(port, mode);
+	atmel_uart_writel(port, ATMEL_US_MR, mode);
 
 	/*
 	 * when switching the mode, set the RTS line state according to the
@@ -2087,16 +2091,16 @@ static void atmel_set_termios(struct uar
 			rts_state = ATMEL_US_RTSEN;
 		}
 
-		UART_PUT_CR(port, rts_state);
+		atmel_uart_writel(port, ATMEL_US_CR, rts_state);
 	}
 
 	/* set the baud rate */
-	UART_PUT_BRGR(port, quot);
-	UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
-	UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN);
+	atmel_uart_writel(port, ATMEL_US_BRGR, quot);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
 
 	/* restore interrupts */
-	UART_PUT_IER(port, imr);
+	atmel_uart_writel(port, ATMEL_US_IER, imr);
 
 	/* CTS flow-control and modem-status interrupts */
 	if (UART_ENABLE_MS(port, termios->c_cflag))
@@ -2207,18 +2211,18 @@ static int atmel_verify_port(struct uart
 #ifdef CONFIG_CONSOLE_POLL
 static int atmel_poll_get_char(struct uart_port *port)
 {
-	while (!(UART_GET_CSR(port) & ATMEL_US_RXRDY))
+	while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_RXRDY))
 		cpu_relax();
 
-	return UART_GET_CHAR(port);
+	return atmel_uart_readl(port, ATMEL_US_RHR);
 }
 
 static void atmel_poll_put_char(struct uart_port *port, unsigned char ch)
 {
-	while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY))
+	while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY))
 		cpu_relax();
 
-	UART_PUT_CHAR(port, ch);
+	atmel_uart_writel(port, ATMEL_US_THR, ch);
 }
 #endif
 
@@ -2323,9 +2327,9 @@ struct platform_device *atmel_default_co
 #ifdef CONFIG_SERIAL_ATMEL_CONSOLE
 static void atmel_console_putchar(struct uart_port *port, int ch)
 {
-	while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY))
+	while (!(atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXRDY))
 		cpu_relax();
-	UART_PUT_CHAR(port, ch);
+	atmel_uart_writel(port, ATMEL_US_THR, ch);
 }
 
 /*
@@ -2341,12 +2345,13 @@ static void atmel_console_write(struct c
 	/*
 	 * First, save IMR and then disable interrupts
 	 */
-	imr = UART_GET_IMR(port);
-	UART_PUT_IDR(port, ATMEL_US_RXRDY | atmel_port->tx_done_mask);
+	imr = atmel_uart_readl(port, ATMEL_US_IMR);
+	atmel_uart_writel(port, ATMEL_US_IDR,
+			  ATMEL_US_RXRDY | atmel_port->tx_done_mask);
 
 	/* Store PDC transmit status and disable it */
-	pdc_tx = UART_GET_PTSR(port) & ATMEL_PDC_TXTEN;
-	UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS);
+	pdc_tx = atmel_uart_readl(port, ATMEL_PDC_PTSR) & ATMEL_PDC_TXTEN;
+	atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTDIS);
 
 	uart_console_write(port, s, count, atmel_console_putchar);
 
@@ -2355,15 +2360,15 @@ static void atmel_console_write(struct c
 	 * and restore IMR
 	 */
 	do {
-		status = UART_GET_CSR(port);
+		status = atmel_uart_readl(port, ATMEL_US_CSR);
 	} while (!(status & ATMEL_US_TXRDY));
 
 	/* Restore PDC transmit status */
 	if (pdc_tx)
-		UART_PUT_PTCR(port, ATMEL_PDC_TXTEN);
+		atmel_uart_writel(port, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN);
 
 	/* set interrupts back the way they were */
-	UART_PUT_IER(port, imr);
+	atmel_uart_writel(port, ATMEL_US_IER, imr);
 }
 
 /*
@@ -2379,17 +2384,17 @@ static void __init atmel_console_get_opt
 	 * If the baud rate generator isn't running, the port wasn't
 	 * initialized by the boot loader.
 	 */
-	quot = UART_GET_BRGR(port) & ATMEL_US_CD;
+	quot = atmel_uart_readl(port, ATMEL_US_BRGR) & ATMEL_US_CD;
 	if (!quot)
 		return;
 
-	mr = UART_GET_MR(port) & ATMEL_US_CHRL;
+	mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_CHRL;
 	if (mr == ATMEL_US_CHRL_8)
 		*bits = 8;
 	else
 		*bits = 7;
 
-	mr = UART_GET_MR(port) & ATMEL_US_PAR;
+	mr = atmel_uart_readl(port, ATMEL_US_MR) & ATMEL_US_PAR;
 	if (mr == ATMEL_US_PAR_EVEN)
 		*parity = 'e';
 	else if (mr == ATMEL_US_PAR_ODD)
@@ -2422,9 +2427,9 @@ static int __init atmel_console_setup(st
 	if (ret)
 		return ret;
 
-	UART_PUT_IDR(port, -1);
-	UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
-	UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN);
+	atmel_uart_writel(port, ATMEL_US_IDR, -1);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
+	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
 
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
@@ -2531,7 +2536,8 @@ static int atmel_serial_suspend(struct p
 
 	if (atmel_is_console_port(port) && console_suspend_enabled) {
 		/* Drain the TX shifter */
-		while (!(UART_GET_CSR(port) & ATMEL_US_TXEMPTY))
+		while (!(atmel_uart_readl(port, ATMEL_US_CSR) &
+			 ATMEL_US_TXEMPTY))
 			cpu_relax();
 	}
 
@@ -2683,8 +2689,9 @@ static int atmel_serial_probe(struct pla
 	clk_prepare_enable(port->clk);
 
 	if (rs485_enabled) {
-		UART_PUT_MR(&port->uart, ATMEL_US_USMODE_NORMAL);
-		UART_PUT_CR(&port->uart, ATMEL_US_RTSEN);
+		atmel_uart_writel(&port->uart, ATMEL_US_MR,
+				  ATMEL_US_USMODE_NORMAL);
+		atmel_uart_writel(&port->uart, ATMEL_US_CR, ATMEL_US_RTSEN);
 	}
 
 	/*
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/tty/serial/samsung.c linux-libre-4.1.31-gnu/drivers/tty/serial/samsung.c
--- linux-libre-4.1.30-gnu/drivers/tty/serial/samsung.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/tty/serial/samsung.c	2016-08-22 09:50:48.000000000 -0400
@@ -1701,7 +1701,7 @@ static int s3c24xx_serial_init_port(stru
 		return -ENODEV;
 
 	if (port->mapbase != 0)
-		return 0;
+		return -EINVAL;
 
 	/* setup info for port */
 	port->dev	= &platdev->dev;
@@ -1755,22 +1755,25 @@ static int s3c24xx_serial_init_port(stru
 		ourport->dma = devm_kzalloc(port->dev,
 					    sizeof(*ourport->dma),
 					    GFP_KERNEL);
-		if (!ourport->dma)
-			return -ENOMEM;
+		if (!ourport->dma) {
+			ret = -ENOMEM;
+			goto err;
+		}
 	}
 
 	ourport->clk	= clk_get(&platdev->dev, "uart");
 	if (IS_ERR(ourport->clk)) {
 		pr_err("%s: Controller clock not found\n",
 				dev_name(&platdev->dev));
-		return PTR_ERR(ourport->clk);
+		ret = PTR_ERR(ourport->clk);
+		goto err;
 	}
 
 	ret = clk_prepare_enable(ourport->clk);
 	if (ret) {
 		pr_err("uart: clock failed to prepare+enable: %d\n", ret);
 		clk_put(ourport->clk);
-		return ret;
+		goto err;
 	}
 
 	/* Keep all interrupts masked and cleared */
@@ -1786,7 +1789,12 @@ static int s3c24xx_serial_init_port(stru
 
 	/* reset the fifos (and setup the uart) */
 	s3c24xx_serial_resetport(port, cfg);
+
 	return 0;
+
+err:
+	port->mapbase = 0;
+	return ret;
 }
 
 /* Device driver serial port probe */
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/usb/core/quirks.c linux-libre-4.1.31-gnu/drivers/usb/core/quirks.c
--- linux-libre-4.1.30-gnu/drivers/usb/core/quirks.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/usb/core/quirks.c	2016-08-22 09:50:48.000000000 -0400
@@ -128,6 +128,12 @@ static const struct usb_device_id usb_qu
 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
 
+	{ USB_DEVICE(0x04f3, 0x0381), .driver_info =
+			USB_QUIRK_NO_LPM },
+
+	{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+			USB_QUIRK_DEVICE_QUALIFIER },
+
 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/usb/dwc3/gadget.c linux-libre-4.1.31-gnu/drivers/usb/dwc3/gadget.c
--- linux-libre-4.1.30-gnu/drivers/usb/dwc3/gadget.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/usb/dwc3/gadget.c	2016-08-22 09:50:48.000000000 -0400
@@ -1939,6 +1939,10 @@ static int dwc3_cleanup_done_reqs(struct
 		return 1;
 	}
 
+	if (usb_endpoint_xfer_isoc(dep->endpoint.desc))
+		if ((event->status & DEPEVT_STATUS_IOC) &&
+				(trb->ctrl & DWC3_TRB_CTRL_IOC))
+			return 0;
 	return 1;
 }
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/usb/host/ohci-q.c linux-libre-4.1.31-gnu/drivers/usb/host/ohci-q.c
--- linux-libre-4.1.30-gnu/drivers/usb/host/ohci-q.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/usb/host/ohci-q.c	2016-08-22 09:50:48.000000000 -0400
@@ -183,7 +183,6 @@ static int ed_schedule (struct ohci_hcd
 {
 	int	branch;
 
-	ed->state = ED_OPER;
 	ed->ed_prev = NULL;
 	ed->ed_next = NULL;
 	ed->hwNextED = 0;
@@ -259,6 +258,8 @@ static int ed_schedule (struct ohci_hcd
 	/* the HC may not see the schedule updates yet, but if it does
 	 * then they'll be properly ordered.
 	 */
+
+	ed->state = ED_OPER;
 	return 0;
 }
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/usb/renesas_usbhs/fifo.c linux-libre-4.1.31-gnu/drivers/usb/renesas_usbhs/fifo.c
--- linux-libre-4.1.30-gnu/drivers/usb/renesas_usbhs/fifo.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/usb/renesas_usbhs/fifo.c	2016-08-22 09:50:48.000000000 -0400
@@ -808,20 +808,27 @@ static void xfer_work(struct work_struct
 {
 	struct usbhs_pkt *pkt = container_of(work, struct usbhs_pkt, work);
 	struct usbhs_pipe *pipe = pkt->pipe;
-	struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe);
+	struct usbhs_fifo *fifo;
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 	struct dma_async_tx_descriptor *desc;
-	struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt);
+	struct dma_chan *chan;
 	struct device *dev = usbhs_priv_to_dev(priv);
 	enum dma_transfer_direction dir;
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+	fifo = usbhs_pipe_to_fifo(pipe);
+	if (!fifo)
+		goto xfer_work_end;
 
+	chan = usbhsf_dma_chan_get(fifo, pkt);
 	dir = usbhs_pipe_is_dir_in(pipe) ? DMA_DEV_TO_MEM : DMA_MEM_TO_DEV;
 
 	desc = dmaengine_prep_slave_single(chan, pkt->dma + pkt->actual,
 					pkt->trans, dir,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc)
-		return;
+		goto xfer_work_end;
 
 	desc->callback		= usbhsf_dma_complete;
 	desc->callback_param	= pipe;
@@ -829,7 +836,7 @@ static void xfer_work(struct work_struct
 	pkt->cookie = dmaengine_submit(desc);
 	if (pkt->cookie < 0) {
 		dev_err(dev, "Failed to submit dma descriptor\n");
-		return;
+		goto xfer_work_end;
 	}
 
 	dev_dbg(dev, "  %s %d (%d/ %d)\n",
@@ -840,6 +847,9 @@ static void xfer_work(struct work_struct
 	usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
 	dma_async_issue_pending(chan);
 	usbhs_pipe_enable(pipe);
+
+xfer_work_end:
+	usbhs_unlock(priv, flags);
 }
 
 /*
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/usb/renesas_usbhs/mod_gadget.c linux-libre-4.1.31-gnu/drivers/usb/renesas_usbhs/mod_gadget.c
--- linux-libre-4.1.30-gnu/drivers/usb/renesas_usbhs/mod_gadget.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/usb/renesas_usbhs/mod_gadget.c	2016-08-22 09:50:48.000000000 -0400
@@ -582,6 +582,9 @@ static int usbhsg_ep_enable(struct usb_e
 	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
 	struct usbhs_pipe *pipe;
 	int ret = -EIO;
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
 
 	/*
 	 * if it already have pipe,
@@ -590,7 +593,8 @@ static int usbhsg_ep_enable(struct usb_e
 	if (uep->pipe) {
 		usbhs_pipe_clear(uep->pipe);
 		usbhs_pipe_sequence_data0(uep->pipe);
-		return 0;
+		ret = 0;
+		goto usbhsg_ep_enable_end;
 	}
 
 	pipe = usbhs_pipe_malloc(priv,
@@ -618,6 +622,9 @@ static int usbhsg_ep_enable(struct usb_e
 		ret = 0;
 	}
 
+usbhsg_ep_enable_end:
+	usbhs_unlock(priv, flags);
+
 	return ret;
 }
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/usb/serial/option.c linux-libre-4.1.31-gnu/drivers/usb/serial/option.c
--- linux-libre-4.1.30-gnu/drivers/usb/serial/option.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/usb/serial/option.c	2016-08-22 09:50:48.000000000 -0400
@@ -276,6 +276,7 @@ static void option_instat_callback(struc
 #define TELIT_PRODUCT_LE922_USBCFG5		0x1045
 #define TELIT_PRODUCT_LE920			0x1200
 #define TELIT_PRODUCT_LE910			0x1201
+#define TELIT_PRODUCT_LE910_USBCFG4		0x1206
 
 /* ZTE PRODUCTS */
 #define ZTE_VENDOR_ID				0x19d2
@@ -1210,6 +1211,8 @@ static const struct usb_device_id option
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 },
 	{ 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),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
 		.driver_info = (kernel_ulong_t)&telit_le920_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
diff -druNp --no-dereference linux-libre-4.1.30-gnu/drivers/virtio/virtio_balloon.c linux-libre-4.1.31-gnu/drivers/virtio/virtio_balloon.c
--- linux-libre-4.1.30-gnu/drivers/virtio/virtio_balloon.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/drivers/virtio/virtio_balloon.c	2016-08-22 09:50:48.000000000 -0400
@@ -73,7 +73,7 @@ struct virtio_balloon {
 
 	/* The array of pfns we tell the Host about. */
 	unsigned int num_pfns;
-	u32 pfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX];
+	__virtio32 pfns[VIRTIO_BALLOON_ARRAY_PFNS_MAX];
 
 	/* Memory statistics */
 	int need_stats_update;
@@ -125,14 +125,16 @@ static void tell_host(struct virtio_ball
 	wait_event(vb->acked, virtqueue_get_buf(vq, &len));
 }
 
-static void set_page_pfns(u32 pfns[], struct page *page)
+static void set_page_pfns(struct virtio_balloon *vb,
+			  __virtio32 pfns[], struct page *page)
 {
 	unsigned int i;
 
 	/* Set balloon pfns pointing at this page.
 	 * Note that the first pfn points at start of the page. */
 	for (i = 0; i < VIRTIO_BALLOON_PAGES_PER_PAGE; i++)
-		pfns[i] = page_to_balloon_pfn(page) + i;
+		pfns[i] = cpu_to_virtio32(vb->vdev,
+					  page_to_balloon_pfn(page) + i);
 }
 
 static void fill_balloon(struct virtio_balloon *vb, size_t num)
@@ -155,9 +157,11 @@ static void fill_balloon(struct virtio_b
 			msleep(200);
 			break;
 		}
-		set_page_pfns(vb->pfns + vb->num_pfns, page);
+		set_page_pfns(vb, vb->pfns + vb->num_pfns, page);
 		vb->num_pages += VIRTIO_BALLOON_PAGES_PER_PAGE;
-		adjust_managed_page_count(page, -1);
+		if (!virtio_has_feature(vb->vdev,
+					VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
+			adjust_managed_page_count(page, -1);
 	}
 
 	/* Did we get any? */
@@ -169,11 +173,15 @@ static void fill_balloon(struct virtio_b
 static void release_pages_balloon(struct virtio_balloon *vb)
 {
 	unsigned int i;
+	struct page *page;
 
 	/* Find pfns pointing at start of each page, get pages and free them. */
 	for (i = 0; i < vb->num_pfns; i += VIRTIO_BALLOON_PAGES_PER_PAGE) {
-		struct page *page = balloon_pfn_to_page(vb->pfns[i]);
-		adjust_managed_page_count(page, 1);
+		page = balloon_pfn_to_page(virtio32_to_cpu(vb->vdev,
+							   vb->pfns[i]));
+		if (!virtio_has_feature(vb->vdev,
+					VIRTIO_BALLOON_F_DEFLATE_ON_OOM))
+			adjust_managed_page_count(page, 1);
 		put_page(page); /* balloon reference */
 	}
 }
@@ -188,12 +196,14 @@ static unsigned leak_balloon(struct virt
 	num = min(num, ARRAY_SIZE(vb->pfns));
 
 	mutex_lock(&vb->balloon_lock);
+	/* We can't release more pages than taken */
+	num = min(num, (size_t)vb->num_pages);
 	for (vb->num_pfns = 0; vb->num_pfns < num;
 	     vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) {
 		page = balloon_page_dequeue(vb_dev_info);
 		if (!page)
 			break;
-		set_page_pfns(vb->pfns + vb->num_pfns, page);
+		set_page_pfns(vb, vb->pfns + vb->num_pfns, page);
 		vb->num_pages -= VIRTIO_BALLOON_PAGES_PER_PAGE;
 	}
 
@@ -461,13 +471,13 @@ static int virtballoon_migratepage(struc
 	__count_vm_event(BALLOON_MIGRATE);
 	spin_unlock_irqrestore(&vb_dev_info->pages_lock, flags);
 	vb->num_pfns = VIRTIO_BALLOON_PAGES_PER_PAGE;
-	set_page_pfns(vb->pfns, newpage);
+	set_page_pfns(vb, vb->pfns, newpage);
 	tell_host(vb, vb->inflate_vq);
 
 	/* balloon's page migration 2nd step -- deflate "page" */
 	balloon_page_delete(page);
 	vb->num_pfns = VIRTIO_BALLOON_PAGES_PER_PAGE;
-	set_page_pfns(vb->pfns, page);
+	set_page_pfns(vb, vb->pfns, page);
 	tell_host(vb, vb->deflate_vq);
 
 	mutex_unlock(&vb->balloon_lock);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/cifs/cifsencrypt.c linux-libre-4.1.31-gnu/fs/cifs/cifsencrypt.c
--- linux-libre-4.1.30-gnu/fs/cifs/cifsencrypt.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/cifs/cifsencrypt.c	2016-08-22 09:50:48.000000000 -0400
@@ -731,24 +731,26 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 
 	memcpy(ses->auth_key.response + baselen, tiblob, tilen);
 
+	mutex_lock(&ses->server->srv_mutex);
+
 	rc = crypto_hmacmd5_alloc(ses->server);
 	if (rc) {
 		cifs_dbg(VFS, "could not crypto alloc hmacmd5 rc %d\n", rc);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	/* calculate ntlmv2_hash */
 	rc = calc_ntlmv2_hash(ses, ntlmv2_hash, nls_cp);
 	if (rc) {
 		cifs_dbg(VFS, "could not get v2 hash rc %d\n", rc);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	/* calculate first part of the client response (CR1) */
 	rc = CalcNTLMv2_response(ses, ntlmv2_hash);
 	if (rc) {
 		cifs_dbg(VFS, "Could not calculate CR1 rc: %d\n", rc);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	/* now calculate the session key for NTLMv2 */
@@ -757,13 +759,13 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not set NTLMV2 Hash as a key\n",
 			 __func__);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	rc = crypto_shash_init(&ses->server->secmech.sdeschmacmd5->shash);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not init hmacmd5\n", __func__);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
@@ -771,7 +773,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 		CIFS_HMAC_MD5_HASH_SIZE);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with response\n", __func__);
-		goto setup_ntlmv2_rsp_ret;
+		goto unlock;
 	}
 
 	rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash,
@@ -779,6 +781,8 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, c
 	if (rc)
 		cifs_dbg(VFS, "%s: Could not generate md5 hash\n", __func__);
 
+unlock:
+	mutex_unlock(&ses->server->srv_mutex);
 setup_ntlmv2_rsp_ret:
 	kfree(tiblob);
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/cifs/cifsfs.c linux-libre-4.1.31-gnu/fs/cifs/cifsfs.c
--- linux-libre-4.1.30-gnu/fs/cifs/cifsfs.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/cifs/cifsfs.c	2016-08-22 09:50:48.000000000 -0400
@@ -679,6 +679,14 @@ cifs_do_mount(struct file_system_type *f
 		goto out_cifs_sb;
 	}
 
+	if (volume_info->prepath) {
+		cifs_sb->prepath = kstrdup(volume_info->prepath, GFP_KERNEL);
+		if (cifs_sb->prepath == NULL) {
+			root = ERR_PTR(-ENOMEM);
+			goto out_cifs_sb;
+		}
+	}
+
 	cifs_setup_cifs_sb(volume_info, cifs_sb);
 
 	rc = cifs_mount(cifs_sb, volume_info);
@@ -717,7 +725,11 @@ cifs_do_mount(struct file_system_type *f
 		sb->s_flags |= MS_ACTIVE;
 	}
 
-	root = cifs_get_root(volume_info, sb);
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+		root = dget(sb->s_root);
+	else
+		root = cifs_get_root(volume_info, sb);
+
 	if (IS_ERR(root))
 		goto out_super;
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/cifs/cifs_fs_sb.h linux-libre-4.1.31-gnu/fs/cifs/cifs_fs_sb.h
--- linux-libre-4.1.30-gnu/fs/cifs/cifs_fs_sb.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/cifs/cifs_fs_sb.h	2016-08-22 09:50:48.000000000 -0400
@@ -46,6 +46,9 @@
 #define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
 #define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */
 #define CIFS_MOUNT_MAP_SFM_CHR	0x800000 /* SFM/MAC mapping for illegal chars */
+#define CIFS_MOUNT_USE_PREFIX_PATH 0x1000000 /* make subpath with unaccessible
+					      * root mountable
+					      */
 
 struct cifs_sb_info {
 	struct rb_root tlink_tree;
@@ -67,5 +70,6 @@ struct cifs_sb_info {
 	struct backing_dev_info bdi;
 	struct delayed_work prune_tlinks;
 	struct rcu_head rcu;
+	char *prepath;
 };
 #endif				/* _CIFS_FS_SB_H */
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/cifs/connect.c linux-libre-4.1.31-gnu/fs/cifs/connect.c
--- linux-libre-4.1.30-gnu/fs/cifs/connect.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/cifs/connect.c	2016-08-22 09:50:48.000000000 -0400
@@ -3436,6 +3436,44 @@ cifs_get_volume_info(char *mount_data, c
 	return volume_info;
 }
 
+static int
+cifs_are_all_path_components_accessible(struct TCP_Server_Info *server,
+					unsigned int xid,
+					struct cifs_tcon *tcon,
+					struct cifs_sb_info *cifs_sb,
+					char *full_path)
+{
+	int rc;
+	char *s;
+	char sep, tmp;
+
+	sep = CIFS_DIR_SEP(cifs_sb);
+	s = full_path;
+
+	rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, "");
+	while (rc == 0) {
+		/* skip separators */
+		while (*s == sep)
+			s++;
+		if (!*s)
+			break;
+		/* next separator */
+		while (*s && *s != sep)
+			s++;
+
+		/*
+		 * temporarily null-terminate the path at the end of
+		 * the current component
+		 */
+		tmp = *s;
+		*s = 0;
+		rc = server->ops->is_path_accessible(xid, tcon, cifs_sb,
+						     full_path);
+		*s = tmp;
+	}
+	return rc;
+}
+
 int
 cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *volume_info)
 {
@@ -3562,6 +3600,16 @@ remote_path_check:
 			kfree(full_path);
 			goto mount_fail_check;
 		}
+
+		rc = cifs_are_all_path_components_accessible(server,
+							     xid, tcon, cifs_sb,
+							     full_path);
+		if (rc != 0) {
+			cifs_dbg(VFS, "cannot query dirs between root and final path, "
+				 "enabling CIFS_MOUNT_USE_PREFIX_PATH\n");
+			cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH;
+			rc = 0;
+		}
 		kfree(full_path);
 	}
 
@@ -3831,6 +3879,7 @@ cifs_umount(struct cifs_sb_info *cifs_sb
 
 	bdi_destroy(&cifs_sb->bdi);
 	kfree(cifs_sb->mountdata);
+	kfree(cifs_sb->prepath);
 	call_rcu(&cifs_sb->rcu, delayed_free);
 }
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/cifs/dir.c linux-libre-4.1.31-gnu/fs/cifs/dir.c
--- linux-libre-4.1.30-gnu/fs/cifs/dir.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/cifs/dir.c	2016-08-22 09:50:48.000000000 -0400
@@ -84,6 +84,7 @@ build_path_from_dentry(struct dentry *di
 	struct dentry *temp;
 	int namelen;
 	int dfsplen;
+	int pplen = 0;
 	char *full_path;
 	char dirsep;
 	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
@@ -95,8 +96,12 @@ build_path_from_dentry(struct dentry *di
 		dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
 	else
 		dfsplen = 0;
+
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+		pplen = cifs_sb->prepath ? strlen(cifs_sb->prepath) + 1 : 0;
+
 cifs_bp_rename_retry:
-	namelen = dfsplen;
+	namelen = dfsplen + pplen;
 	seq = read_seqbegin(&rename_lock);
 	rcu_read_lock();
 	for (temp = direntry; !IS_ROOT(temp);) {
@@ -137,7 +142,7 @@ cifs_bp_rename_retry:
 		}
 	}
 	rcu_read_unlock();
-	if (namelen != dfsplen || read_seqretry(&rename_lock, seq)) {
+	if (namelen != dfsplen + pplen || read_seqretry(&rename_lock, seq)) {
 		cifs_dbg(FYI, "did not end path lookup where expected. namelen=%ddfsplen=%d\n",
 			 namelen, dfsplen);
 		/* presumably this is only possible if racing with a rename
@@ -153,6 +158,17 @@ cifs_bp_rename_retry:
 	   those safely to '/' if any are found in the middle of the prepath */
 	/* BB test paths to Windows with '/' in the midst of prepath */
 
+	if (pplen) {
+		int i;
+
+		cifs_dbg(FYI, "using cifs_sb prepath <%s>\n", cifs_sb->prepath);
+		memcpy(full_path+dfsplen+1, cifs_sb->prepath, pplen-1);
+		full_path[dfsplen] = '\\';
+		for (i = 0; i < pplen-1; i++)
+			if (full_path[dfsplen+1+i] == '/')
+				full_path[dfsplen+1+i] = CIFS_DIR_SEP(cifs_sb);
+	}
+
 	if (dfsplen) {
 		strncpy(full_path, tcon->treeName, dfsplen);
 		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) {
@@ -229,6 +245,13 @@ cifs_do_create(struct inode *inode, stru
 				goto cifs_create_get_file_info;
 			}
 
+			if (S_ISDIR(newinode->i_mode)) {
+				CIFSSMBClose(xid, tcon, fid->netfid);
+				iput(newinode);
+				rc = -EISDIR;
+				goto out;
+			}
+
 			if (!S_ISREG(newinode->i_mode)) {
 				/*
 				 * The server may allow us to open things like
@@ -399,10 +422,14 @@ cifs_create_set_dentry:
 	if (rc != 0) {
 		cifs_dbg(FYI, "Create worked, get_inode_info failed rc = %d\n",
 			 rc);
-		if (server->ops->close)
-			server->ops->close(xid, tcon, fid);
-		goto out;
+		goto out_err;
+	}
+
+	if (S_ISDIR(newinode->i_mode)) {
+		rc = -EISDIR;
+		goto out_err;
 	}
+
 	d_drop(direntry);
 	d_add(direntry, newinode);
 
@@ -410,6 +437,13 @@ out:
 	kfree(buf);
 	kfree(full_path);
 	return rc;
+
+out_err:
+	if (server->ops->close)
+		server->ops->close(xid, tcon, fid);
+	if (newinode)
+		iput(newinode);
+	goto out;
 }
 
 int
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/cifs/inode.c linux-libre-4.1.31-gnu/fs/cifs/inode.c
--- linux-libre-4.1.30-gnu/fs/cifs/inode.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/cifs/inode.c	2016-08-22 09:50:48.000000000 -0400
@@ -982,10 +982,26 @@ struct inode *cifs_root_iget(struct supe
 	struct inode *inode = NULL;
 	long rc;
 	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
+	char *path = NULL;
+	int len;
+
+	if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH)
+	    && cifs_sb->prepath) {
+		len = strlen(cifs_sb->prepath);
+		path = kzalloc(len + 2 /* leading sep + null */, GFP_KERNEL);
+		if (path == NULL)
+			return ERR_PTR(-ENOMEM);
+		path[0] = '/';
+		memcpy(path+1, cifs_sb->prepath, len);
+	} else {
+		path = kstrdup("", GFP_KERNEL);
+		if (path == NULL)
+			return ERR_PTR(-ENOMEM);
+	}
 
 	xid = get_xid();
 	if (tcon->unix_ext) {
-		rc = cifs_get_inode_info_unix(&inode, "", sb, xid);
+		rc = cifs_get_inode_info_unix(&inode, path, sb, xid);
 		/* some servers mistakenly claim POSIX support */
 		if (rc != -EOPNOTSUPP)
 			goto iget_no_retry;
@@ -993,7 +1009,8 @@ struct inode *cifs_root_iget(struct supe
 		tcon->unix_ext = false;
 	}
 
-	rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL);
+	convert_delimiter(path, CIFS_DIR_SEP(cifs_sb));
+	rc = cifs_get_inode_info(&inode, path, NULL, sb, xid, NULL);
 
 iget_no_retry:
 	if (!inode) {
@@ -1022,6 +1039,7 @@ iget_no_retry:
 	}
 
 out:
+	kfree(path);
 	/* can not call macro free_xid here since in a void func
 	 * TODO: This is no longer true
 	 */
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/cifs/smb2ops.c linux-libre-4.1.31-gnu/fs/cifs/smb2ops.c
--- linux-libre-4.1.30-gnu/fs/cifs/smb2ops.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/cifs/smb2ops.c	2016-08-22 09:50:48.000000000 -0400
@@ -973,6 +973,9 @@ smb2_new_lease_key(struct cifs_fid *fid)
 	get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE);
 }
 
+#define SMB2_SYMLINK_STRUCT_SIZE \
+	(sizeof(struct smb2_err_rsp) - 1 + sizeof(struct smb2_symlink_err_rsp))
+
 static int
 smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
 		   const char *full_path, char **target_path,
@@ -985,7 +988,10 @@ smb2_query_symlink(const unsigned int xi
 	struct cifs_fid fid;
 	struct smb2_err_rsp *err_buf = NULL;
 	struct smb2_symlink_err_rsp *symlink;
-	unsigned int sub_len, sub_offset;
+	unsigned int sub_len;
+	unsigned int sub_offset;
+	unsigned int print_len;
+	unsigned int print_offset;
 
 	cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
 
@@ -1006,11 +1012,33 @@ smb2_query_symlink(const unsigned int xi
 		kfree(utf16_path);
 		return -ENOENT;
 	}
+
+	if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) ||
+	    get_rfc1002_length(err_buf) + 4 < SMB2_SYMLINK_STRUCT_SIZE) {
+		kfree(utf16_path);
+		return -ENOENT;
+	}
+
 	/* open must fail on symlink - reset rc */
 	rc = 0;
 	symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData;
 	sub_len = le16_to_cpu(symlink->SubstituteNameLength);
 	sub_offset = le16_to_cpu(symlink->SubstituteNameOffset);
+	print_len = le16_to_cpu(symlink->PrintNameLength);
+	print_offset = le16_to_cpu(symlink->PrintNameOffset);
+
+	if (get_rfc1002_length(err_buf) + 4 <
+			SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) {
+		kfree(utf16_path);
+		return -ENOENT;
+	}
+
+	if (get_rfc1002_length(err_buf) + 4 <
+			SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) {
+		kfree(utf16_path);
+		return -ENOENT;
+	}
+
 	*target_path = cifs_strndup_from_utf16(
 				(char *)symlink->PathBuffer + sub_offset,
 				sub_len, true, cifs_sb->local_nls);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/dcache.c linux-libre-4.1.31-gnu/fs/dcache.c
--- linux-libre-4.1.30-gnu/fs/dcache.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/dcache.c	2016-08-22 09:50:48.000000000 -0400
@@ -578,7 +578,6 @@ static struct dentry *dentry_kill(struct
 
 failed:
 	spin_unlock(&dentry->d_lock);
-	cpu_relax();
 	return dentry; /* try again with same dentry */
 }
 
@@ -752,6 +751,8 @@ void dput(struct dentry *dentry)
 		return;
 
 repeat:
+	might_sleep();
+
 	rcu_read_lock();
 	if (likely(fast_dput(dentry))) {
 		rcu_read_unlock();
@@ -783,8 +784,10 @@ repeat:
 
 kill_it:
 	dentry = dentry_kill(dentry);
-	if (dentry)
+	if (dentry) {
+		cond_resched();
 		goto repeat;
+	}
 }
 EXPORT_SYMBOL(dput);
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/ext4/balloc.c linux-libre-4.1.31-gnu/fs/ext4/balloc.c
--- linux-libre-4.1.30-gnu/fs/ext4/balloc.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/ext4/balloc.c	2016-08-22 09:50:48.000000000 -0400
@@ -208,6 +208,9 @@ static int ext4_init_block_bitmap(struct
 	memset(bh->b_data, 0, sb->s_blocksize);
 
 	bit_max = ext4_num_base_meta_clusters(sb, block_group);
+	if ((bit_max >> 3) >= bh->b_size)
+		return -EIO;
+
 	for (bit = 0; bit < bit_max; bit++)
 		ext4_set_bit(bit, bh->b_data);
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/ext4/extents.c linux-libre-4.1.31-gnu/fs/ext4/extents.c
--- linux-libre-4.1.30-gnu/fs/ext4/extents.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/ext4/extents.c	2016-08-22 09:50:48.000000000 -0400
@@ -375,9 +375,13 @@ static int ext4_valid_extent(struct inod
 	ext4_fsblk_t block = ext4_ext_pblock(ext);
 	int len = ext4_ext_get_actual_len(ext);
 	ext4_lblk_t lblock = le32_to_cpu(ext->ee_block);
-	ext4_lblk_t last = lblock + len - 1;
 
-	if (len == 0 || lblock > last)
+	/*
+	 * We allow neither:
+	 *  - zero length
+	 *  - overflow/wrap-around
+	 */
+	if (lblock + len <= lblock)
 		return 0;
 	return ext4_data_block_valid(EXT4_SB(inode->i_sb), block, len);
 }
@@ -468,6 +472,10 @@ static int __ext4_ext_check(const char *
 		error_msg = "invalid extent entries";
 		goto corrupted;
 	}
+	if (unlikely(depth > 32)) {
+		error_msg = "too large eh_depth";
+		goto corrupted;
+	}
 	/* Verify checksum on non-root extent tree nodes */
 	if (ext_depth(inode) != depth &&
 	    !ext4_extent_block_csum_verify(inode, eh)) {
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/ext4/inode.c linux-libre-4.1.31-gnu/fs/ext4/inode.c
--- linux-libre-4.1.30-gnu/fs/ext4/inode.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/ext4/inode.c	2016-08-22 09:50:48.000000000 -0400
@@ -204,9 +204,9 @@ void ext4_evict_inode(struct inode *inod
 		 * Note that directories do not have this problem because they
 		 * don't use page cache.
 		 */
-		if (ext4_should_journal_data(inode) &&
-		    (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode)) &&
-		    inode->i_ino != EXT4_JOURNAL_INO) {
+		if (inode->i_ino != EXT4_JOURNAL_INO &&
+		    ext4_should_journal_data(inode) &&
+		    (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode))) {
 			journal_t *journal = EXT4_SB(inode->i_sb)->s_journal;
 			tid_t commit_tid = EXT4_I(inode)->i_datasync_tid;
 
@@ -2557,13 +2557,36 @@ retry:
 				done = true;
 			}
 		}
-		ext4_journal_stop(handle);
+		/*
+		 * Caution: If the handle is synchronous,
+		 * ext4_journal_stop() can wait for transaction commit
+		 * to finish which may depend on writeback of pages to
+		 * complete or on page lock to be released.  In that
+		 * case, we have to wait until after after we have
+		 * submitted all the IO, released page locks we hold,
+		 * and dropped io_end reference (for extent conversion
+		 * to be able to complete) before stopping the handle.
+		 */
+		if (!ext4_handle_valid(handle) || handle->h_sync == 0) {
+			ext4_journal_stop(handle);
+			handle = NULL;
+		}
 		/* Submit prepared bio */
 		ext4_io_submit(&mpd.io_submit);
 		/* Unlock pages we didn't use */
 		mpage_release_unused_pages(&mpd, give_up_on_write);
-		/* Drop our io_end reference we got from init */
-		ext4_put_io_end(mpd.io_submit.io_end);
+		/*
+		 * Drop our io_end reference we got from init. We have
+		 * to be careful and use deferred io_end finishing if
+		 * we are still holding the transaction as we can
+		 * release the last reference to io_end which may end
+		 * up doing unwritten extent conversion.
+		 */
+		if (handle) {
+			ext4_put_io_end_defer(mpd.io_submit.io_end);
+			ext4_journal_stop(handle);
+		} else
+			ext4_put_io_end(mpd.io_submit.io_end);
 
 		if (ret == -ENOSPC && sbi->s_journal) {
 			/*
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/ext4/super.c linux-libre-4.1.31-gnu/fs/ext4/super.c
--- linux-libre-4.1.30-gnu/fs/ext4/super.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/ext4/super.c	2016-08-22 09:50:48.000000000 -0400
@@ -2229,6 +2229,16 @@ static void ext4_orphan_cleanup(struct s
 	while (es->s_last_orphan) {
 		struct inode *inode;
 
+		/*
+		 * We may have encountered an error during cleanup; if
+		 * so, skip the rest.
+		 */
+		if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) {
+			jbd_debug(1, "Skipping orphan recovery on fs with errors.\n");
+			es->s_last_orphan = 0;
+			break;
+		}
+
 		inode = ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan));
 		if (IS_ERR(inode)) {
 			es->s_last_orphan = 0;
@@ -3711,6 +3721,13 @@ static int ext4_fill_super(struct super_
 		goto failed_mount;
 	}
 
+	if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (blocksize / 4)) {
+		ext4_msg(sb, KERN_ERR,
+			 "Number of reserved GDT blocks insanely large: %d",
+			 le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks));
+		goto failed_mount;
+	}
+
 	if (sbi->s_mount_opt & EXT4_MOUNT_DAX) {
 		if (blocksize != PAGE_SIZE) {
 			ext4_msg(sb, KERN_ERR,
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/fuse/file.c linux-libre-4.1.31-gnu/fs/fuse/file.c
--- linux-libre-4.1.30-gnu/fs/fuse/file.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/fuse/file.c	2016-08-22 09:50:48.000000000 -0400
@@ -417,6 +417,15 @@ static int fuse_flush(struct file *file,
 	fuse_sync_writes(inode);
 	mutex_unlock(&inode->i_mutex);
 
+	if (test_bit(AS_ENOSPC, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_ENOSPC, &file->f_mapping->flags))
+		err = -ENOSPC;
+	if (test_bit(AS_EIO, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_EIO, &file->f_mapping->flags))
+		err = -EIO;
+	if (err)
+		return err;
+
 	req = fuse_get_req_nofail_nopages(fc, file);
 	memset(&inarg, 0, sizeof(inarg));
 	inarg.fh = ff->fh;
@@ -462,6 +471,21 @@ int fuse_fsync_common(struct file *file,
 		goto out;
 
 	fuse_sync_writes(inode);
+
+	/*
+	 * Due to implementation of fuse writeback
+	 * filemap_write_and_wait_range() does not catch errors.
+	 * We have to do this directly after fuse_sync_writes()
+	 */
+	if (test_bit(AS_ENOSPC, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_ENOSPC, &file->f_mapping->flags))
+		err = -ENOSPC;
+	if (test_bit(AS_EIO, &file->f_mapping->flags) &&
+	    test_and_clear_bit(AS_EIO, &file->f_mapping->flags))
+		err = -EIO;
+	if (err)
+		goto out;
+
 	err = sync_inode_metadata(inode, 1);
 	if (err)
 		goto out;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/fuse/inode.c linux-libre-4.1.31-gnu/fs/fuse/inode.c
--- linux-libre-4.1.30-gnu/fs/fuse/inode.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/fuse/inode.c	2016-08-22 09:50:48.000000000 -0400
@@ -910,7 +910,7 @@ static void fuse_send_init(struct fuse_c
 	arg->flags |= FUSE_ASYNC_READ | FUSE_POSIX_LOCKS | FUSE_ATOMIC_O_TRUNC |
 		FUSE_EXPORT_SUPPORT | FUSE_BIG_WRITES | FUSE_DONT_MASK |
 		FUSE_SPLICE_WRITE | FUSE_SPLICE_MOVE | FUSE_SPLICE_READ |
-		FUSE_FLOCK_LOCKS | FUSE_IOCTL_DIR | FUSE_AUTO_INVAL_DATA |
+		FUSE_FLOCK_LOCKS | FUSE_HAS_IOCTL_DIR | FUSE_AUTO_INVAL_DATA |
 		FUSE_DO_READDIRPLUS | FUSE_READDIRPLUS_AUTO | FUSE_ASYNC_DIO |
 		FUSE_WRITEBACK_CACHE | FUSE_NO_OPEN_SUPPORT;
 	req->in.h.opcode = FUSE_INIT;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/nfs/write.c linux-libre-4.1.31-gnu/fs/nfs/write.c
--- linux-libre-4.1.30-gnu/fs/nfs/write.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/nfs/write.c	2016-08-22 09:50:48.000000000 -0400
@@ -1241,6 +1241,9 @@ int nfs_updatepage(struct file *file, st
 	dprintk("NFS:       nfs_updatepage(%pD2 %d@%lld)\n",
 		file, count, (long long)(page_file_offset(page) + offset));
 
+	if (!count)
+		goto out;
+
 	if (nfs_can_extend_write(file, page, inode)) {
 		count = max(count + offset, nfs_page_length(page));
 		offset = 0;
@@ -1251,7 +1254,7 @@ int nfs_updatepage(struct file *file, st
 		nfs_set_pageerror(page);
 	else
 		__set_page_dirty_nobuffers(page);
-
+out:
 	dprintk("NFS:       nfs_updatepage returns %d (isize %lld)\n",
 			status, (long long)i_size_read(inode));
 	return status;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/nfsd/nfs2acl.c linux-libre-4.1.31-gnu/fs/nfsd/nfs2acl.c
--- linux-libre-4.1.30-gnu/fs/nfsd/nfs2acl.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/nfsd/nfs2acl.c	2016-08-22 09:50:48.000000000 -0400
@@ -104,22 +104,21 @@ static __be32 nfsacld_proc_setacl(struct
 		goto out;
 
 	inode = d_inode(fh->fh_dentry);
-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
-		error = -EOPNOTSUPP;
-		goto out_errno;
-	}
 
 	error = fh_want_write(fh);
 	if (error)
 		goto out_errno;
 
-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
+	fh_lock(fh);
+
+	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
 	if (error)
-		goto out_drop_write;
-	error = inode->i_op->set_acl(inode, argp->acl_default,
-				     ACL_TYPE_DEFAULT);
+		goto out_drop_lock;
+	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
 	if (error)
-		goto out_drop_write;
+		goto out_drop_lock;
+
+	fh_unlock(fh);
 
 	fh_drop_write(fh);
 
@@ -131,7 +130,8 @@ out:
 	posix_acl_release(argp->acl_access);
 	posix_acl_release(argp->acl_default);
 	return nfserr;
-out_drop_write:
+out_drop_lock:
+	fh_unlock(fh);
 	fh_drop_write(fh);
 out_errno:
 	nfserr = nfserrno(error);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/nfsd/nfs3acl.c linux-libre-4.1.31-gnu/fs/nfsd/nfs3acl.c
--- linux-libre-4.1.30-gnu/fs/nfsd/nfs3acl.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/nfsd/nfs3acl.c	2016-08-22 09:50:48.000000000 -0400
@@ -95,22 +95,20 @@ static __be32 nfsd3_proc_setacl(struct s
 		goto out;
 
 	inode = d_inode(fh->fh_dentry);
-	if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
-		error = -EOPNOTSUPP;
-		goto out_errno;
-	}
 
 	error = fh_want_write(fh);
 	if (error)
 		goto out_errno;
 
-	error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
+	fh_lock(fh);
+
+	error = set_posix_acl(inode, ACL_TYPE_ACCESS, argp->acl_access);
 	if (error)
-		goto out_drop_write;
-	error = inode->i_op->set_acl(inode, argp->acl_default,
-				     ACL_TYPE_DEFAULT);
+		goto out_drop_lock;
+	error = set_posix_acl(inode, ACL_TYPE_DEFAULT, argp->acl_default);
 
-out_drop_write:
+out_drop_lock:
+	fh_unlock(fh);
 	fh_drop_write(fh);
 out_errno:
 	nfserr = nfserrno(error);
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/nfsd/nfs4acl.c linux-libre-4.1.31-gnu/fs/nfsd/nfs4acl.c
--- linux-libre-4.1.30-gnu/fs/nfsd/nfs4acl.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/nfsd/nfs4acl.c	2016-08-22 09:50:48.000000000 -0400
@@ -782,9 +782,6 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqst
 	dentry = fhp->fh_dentry;
 	inode = d_inode(dentry);
 
-	if (!inode->i_op->set_acl || !IS_POSIXACL(inode))
-		return nfserr_attrnotsupp;
-
 	if (S_ISDIR(inode->i_mode))
 		flags = NFS4_ACL_DIR;
 
@@ -794,16 +791,19 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqst
 	if (host_error < 0)
 		goto out_nfserr;
 
-	host_error = inode->i_op->set_acl(inode, pacl, ACL_TYPE_ACCESS);
+	fh_lock(fhp);
+
+	host_error = set_posix_acl(inode, ACL_TYPE_ACCESS, pacl);
 	if (host_error < 0)
-		goto out_release;
+		goto out_drop_lock;
 
 	if (S_ISDIR(inode->i_mode)) {
-		host_error = inode->i_op->set_acl(inode, dpacl,
-						  ACL_TYPE_DEFAULT);
+		host_error = set_posix_acl(inode, ACL_TYPE_DEFAULT, dpacl);
 	}
 
-out_release:
+out_drop_lock:
+	fh_unlock(fhp);
+
 	posix_acl_release(pacl);
 	posix_acl_release(dpacl);
 out_nfserr:
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/overlayfs/dir.c linux-libre-4.1.31-gnu/fs/overlayfs/dir.c
--- linux-libre-4.1.30-gnu/fs/overlayfs/dir.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/overlayfs/dir.c	2016-08-22 09:50:48.000000000 -0400
@@ -590,21 +590,25 @@ static int ovl_remove_upper(struct dentr
 {
 	struct dentry *upperdir = ovl_dentry_upper(dentry->d_parent);
 	struct inode *dir = upperdir->d_inode;
-	struct dentry *upper = ovl_dentry_upper(dentry);
+	struct dentry *upper;
 	int err;
 
 	mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
+	upper = lookup_one_len(dentry->d_name.name, upperdir,
+			       dentry->d_name.len);
+	err = PTR_ERR(upper);
+	if (IS_ERR(upper))
+		goto out_unlock;
+
 	err = -ESTALE;
-	if (upper->d_parent == upperdir) {
-		/* Don't let d_delete() think it can reset d_inode */
-		dget(upper);
+	if (upper == ovl_dentry_upper(dentry)) {
 		if (is_dir)
 			err = vfs_rmdir(dir, upper);
 		else
 			err = vfs_unlink(dir, upper, NULL);
-		dput(upper);
 		ovl_dentry_version_inc(dentry->d_parent);
 	}
+	dput(upper);
 
 	/*
 	 * Keeping this dentry hashed would mean having to release
@@ -614,6 +618,7 @@ static int ovl_remove_upper(struct dentr
 	 */
 	if (!err)
 		d_drop(dentry);
+out_unlock:
 	mutex_unlock(&dir->i_mutex);
 
 	return err;
@@ -834,29 +839,39 @@ static int ovl_rename2(struct inode *old
 
 	trap = lock_rename(new_upperdir, old_upperdir);
 
-	olddentry = ovl_dentry_upper(old);
-	newdentry = ovl_dentry_upper(new);
-	if (newdentry) {
+
+	olddentry = lookup_one_len(old->d_name.name, old_upperdir,
+				   old->d_name.len);
+	err = PTR_ERR(olddentry);
+	if (IS_ERR(olddentry))
+		goto out_unlock;
+
+	err = -ESTALE;
+	if (olddentry != ovl_dentry_upper(old))
+		goto out_dput_old;
+
+	newdentry = lookup_one_len(new->d_name.name, new_upperdir,
+				   new->d_name.len);
+	err = PTR_ERR(newdentry);
+	if (IS_ERR(newdentry))
+		goto out_dput_old;
+
+	err = -ESTALE;
+	if (ovl_dentry_upper(new)) {
 		if (opaquedir) {
-			newdentry = opaquedir;
-			opaquedir = NULL;
+			if (newdentry != opaquedir)
+				goto out_dput;
 		} else {
-			dget(newdentry);
+			if (newdentry != ovl_dentry_upper(new))
+				goto out_dput;
 		}
 	} else {
 		new_create = true;
-		newdentry = lookup_one_len(new->d_name.name, new_upperdir,
-					   new->d_name.len);
-		err = PTR_ERR(newdentry);
-		if (IS_ERR(newdentry))
-			goto out_unlock;
+		if (!d_is_negative(newdentry) &&
+		    (!new_opaque || !ovl_is_whiteout(newdentry)))
+			goto out_dput;
 	}
 
-	err = -ESTALE;
-	if (olddentry->d_parent != old_upperdir)
-		goto out_dput;
-	if (newdentry->d_parent != new_upperdir)
-		goto out_dput;
 	if (olddentry == trap)
 		goto out_dput;
 	if (newdentry == trap)
@@ -919,6 +934,8 @@ static int ovl_rename2(struct inode *old
 
 out_dput:
 	dput(newdentry);
+out_dput_old:
+	dput(olddentry);
 out_unlock:
 	unlock_rename(new_upperdir, old_upperdir);
 out_revert_creds:
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/posix_acl.c linux-libre-4.1.31-gnu/fs/posix_acl.c
--- linux-libre-4.1.30-gnu/fs/posix_acl.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/posix_acl.c	2016-08-22 09:50:48.000000000 -0400
@@ -791,38 +791,42 @@ posix_acl_xattr_get(struct dentry *dentr
 	return error;
 }
 
-static int
-posix_acl_xattr_set(struct dentry *dentry, const char *name,
-		const void *value, size_t size, int flags, int type)
+int
+set_posix_acl(struct inode *inode, int type, struct posix_acl *acl)
 {
-	struct inode *inode = d_backing_inode(dentry);
-	struct posix_acl *acl = NULL;
-	int ret;
-
 	if (!IS_POSIXACL(inode))
 		return -EOPNOTSUPP;
 	if (!inode->i_op->set_acl)
 		return -EOPNOTSUPP;
 
 	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
-		return value ? -EACCES : 0;
+		return acl ? -EACCES : 0;
 	if (!inode_owner_or_capable(inode))
 		return -EPERM;
 
+	if (acl) {
+		int ret = posix_acl_valid(acl);
+		if (ret)
+			return ret;
+	}
+	return inode->i_op->set_acl(inode, acl, type);
+}
+EXPORT_SYMBOL(set_posix_acl);
+
+static int
+posix_acl_xattr_set(struct dentry *dentry, const char *name,
+		const void *value, size_t size, int flags, int type)
+{
+	struct inode *inode = d_backing_inode(dentry);
+	struct posix_acl *acl = NULL;
+	int ret;
+
 	if (value) {
 		acl = posix_acl_from_xattr(&init_user_ns, value, size);
 		if (IS_ERR(acl))
 			return PTR_ERR(acl);
-
-		if (acl) {
-			ret = posix_acl_valid(acl);
-			if (ret)
-				goto out;
-		}
 	}
-
-	ret = inode->i_op->set_acl(inode, acl, type);
-out:
+	ret = set_posix_acl(inode, type, acl);
 	posix_acl_release(acl);
 	return ret;
 }
diff -druNp --no-dereference linux-libre-4.1.30-gnu/fs/proc/task_mmu.c linux-libre-4.1.31-gnu/fs/proc/task_mmu.c
--- linux-libre-4.1.30-gnu/fs/proc/task_mmu.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/fs/proc/task_mmu.c	2016-08-22 09:50:48.000000000 -0400
@@ -1257,7 +1257,7 @@ static ssize_t pagemap_read(struct file
 	if (!pm.buffer)
 		goto out_task;
 
-	mm = mm_access(task, PTRACE_MODE_READ);
+	mm = mm_access(task, PTRACE_MODE_READ_FSCREDS);
 	ret = PTR_ERR(mm);
 	if (!mm || IS_ERR(mm))
 		goto out_free;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/include/linux/i8042.h linux-libre-4.1.31-gnu/include/linux/i8042.h
--- linux-libre-4.1.30-gnu/include/linux/i8042.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/include/linux/i8042.h	2016-08-22 09:50:48.000000000 -0400
@@ -62,7 +62,6 @@ struct serio;
 void i8042_lock_chip(void);
 void i8042_unlock_chip(void);
 int i8042_command(unsigned char *param, int command);
-bool i8042_check_port_owner(const struct serio *);
 int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
 					struct serio *serio));
 int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
@@ -83,11 +82,6 @@ static inline int i8042_command(unsigned
 	return -ENODEV;
 }
 
-static inline bool i8042_check_port_owner(const struct serio *serio)
-{
-	return false;
-}
-
 static inline int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
 					struct serio *serio))
 {
diff -druNp --no-dereference linux-libre-4.1.30-gnu/include/linux/serio.h linux-libre-4.1.31-gnu/include/linux/serio.h
--- linux-libre-4.1.30-gnu/include/linux/serio.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/include/linux/serio.h	2016-08-22 09:50:48.000000000 -0400
@@ -29,7 +29,8 @@ struct serio {
 
 	struct serio_device_id id;
 
-	spinlock_t lock;		/* protects critical sections from port's interrupt handler */
+	/* Protects critical sections from port's interrupt handler */
+	spinlock_t lock;
 
 	int (*write)(struct serio *, unsigned char);
 	int (*open)(struct serio *);
@@ -38,16 +39,29 @@ struct serio {
 	void (*stop)(struct serio *);
 
 	struct serio *parent;
-	struct list_head child_node;	/* Entry in parent->children list */
+	/* Entry in parent->children list */
+	struct list_head child_node;
 	struct list_head children;
-	unsigned int depth;		/* level of nesting in serio hierarchy */
+	/* Level of nesting in serio hierarchy */
+	unsigned int depth;
 
-	struct serio_driver *drv;	/* accessed from interrupt, must be protected by serio->lock and serio->sem */
-	struct mutex drv_mutex;		/* protects serio->drv so attributes can pin driver */
+	/*
+	 * serio->drv is accessed from interrupt handlers; when modifying
+	 * caller should acquire serio->drv_mutex and serio->lock.
+	 */
+	struct serio_driver *drv;
+	/* Protects serio->drv so attributes can pin current driver */
+	struct mutex drv_mutex;
 
 	struct device dev;
 
 	struct list_head node;
+
+	/*
+	 * For use by PS/2 layer when several ports share hardware and
+	 * may get indigestion when exposed to concurrent access (i8042).
+	 */
+	struct mutex *ps2_cmd_mutex;
 };
 #define to_serio_port(d)	container_of(d, struct serio, dev)
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/include/trace/events/sunrpc.h linux-libre-4.1.31-gnu/include/trace/events/sunrpc.h
--- linux-libre-4.1.30-gnu/include/trace/events/sunrpc.h	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/include/trace/events/sunrpc.h	2016-08-22 09:50:48.000000000 -0400
@@ -529,20 +529,27 @@ TRACE_EVENT(svc_xprt_do_enqueue,
 
 	TP_STRUCT__entry(
 		__field(struct svc_xprt *, xprt)
-		__field_struct(struct sockaddr_storage, ss)
 		__field(int, pid)
 		__field(unsigned long, flags)
+		__dynamic_array(unsigned char, addr, xprt != NULL ?
+			xprt->xpt_remotelen : 0)
 	),
 
 	TP_fast_assign(
 		__entry->xprt = xprt;
-		xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss));
 		__entry->pid = rqst? rqst->rq_task->pid : 0;
-		__entry->flags = xprt ? xprt->xpt_flags : 0;
+		if (xprt) {
+			memcpy(__get_dynamic_array(addr),
+				&xprt->xpt_remote,
+				xprt->xpt_remotelen);
+			__entry->flags = xprt->xpt_flags;
+		} else
+			__entry->flags = 0;
 	),
 
 	TP_printk("xprt=0x%p addr=%pIScp pid=%d flags=%s", __entry->xprt,
-		(struct sockaddr *)&__entry->ss,
+		__get_dynamic_array_len(addr) != 0 ?
+			(struct sockaddr *)__get_dynamic_array(addr) : NULL,
 		__entry->pid, show_svc_xprt_flags(__entry->flags))
 );
 
@@ -553,18 +560,25 @@ TRACE_EVENT(svc_xprt_dequeue,
 
 	TP_STRUCT__entry(
 		__field(struct svc_xprt *, xprt)
-		__field_struct(struct sockaddr_storage, ss)
 		__field(unsigned long, flags)
+		__dynamic_array(unsigned char, addr, xprt != NULL ?
+			xprt->xpt_remotelen : 0)
 	),
 
 	TP_fast_assign(
-		__entry->xprt = xprt,
-		xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss));
-		__entry->flags = xprt ? xprt->xpt_flags : 0;
+		__entry->xprt = xprt;
+		if (xprt) {
+			memcpy(__get_dynamic_array(addr),
+					&xprt->xpt_remote,
+					xprt->xpt_remotelen);
+			__entry->flags = xprt->xpt_flags;
+		} else
+			__entry->flags = 0;
 	),
 
 	TP_printk("xprt=0x%p addr=%pIScp flags=%s", __entry->xprt,
-		(struct sockaddr *)&__entry->ss,
+		__get_dynamic_array_len(addr) != 0 ?
+			(struct sockaddr *)__get_dynamic_array(addr) : NULL,
 		show_svc_xprt_flags(__entry->flags))
 );
 
@@ -592,19 +606,26 @@ TRACE_EVENT(svc_handle_xprt,
 	TP_STRUCT__entry(
 		__field(struct svc_xprt *, xprt)
 		__field(int, len)
-		__field_struct(struct sockaddr_storage, ss)
 		__field(unsigned long, flags)
+		__dynamic_array(unsigned char, addr, xprt != NULL ?
+			xprt->xpt_remotelen : 0)
 	),
 
 	TP_fast_assign(
 		__entry->xprt = xprt;
-		xprt ? memcpy(&__entry->ss, &xprt->xpt_remote, sizeof(__entry->ss)) : memset(&__entry->ss, 0, sizeof(__entry->ss));
 		__entry->len = len;
-		__entry->flags = xprt ? xprt->xpt_flags : 0;
+		if (xprt) {
+			memcpy(__get_dynamic_array(addr),
+					&xprt->xpt_remote,
+					xprt->xpt_remotelen);
+			__entry->flags = xprt->xpt_flags;
+		} else
+			__entry->flags = 0;
 	),
 
 	TP_printk("xprt=0x%p addr=%pIScp len=%d flags=%s", __entry->xprt,
-		(struct sockaddr *)&__entry->ss,
+		__get_dynamic_array_len(addr) != 0 ?
+			(struct sockaddr *)__get_dynamic_array(addr) : NULL,
 		__entry->len, show_svc_xprt_flags(__entry->flags))
 );
 #endif /* _TRACE_SUNRPC_H */
diff -druNp --no-dereference linux-libre-4.1.30-gnu/ipc/msg.c linux-libre-4.1.31-gnu/ipc/msg.c
--- linux-libre-4.1.30-gnu/ipc/msg.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/ipc/msg.c	2016-08-22 09:50:48.000000000 -0400
@@ -678,7 +678,7 @@ long do_msgsnd(int msqid, long mtype, vo
 		rcu_read_lock();
 		ipc_lock_object(&msq->q_perm);
 
-		ipc_rcu_putref(msq, ipc_rcu_free);
+		ipc_rcu_putref(msq, msg_rcu_free);
 		/* raced with RMID? */
 		if (!ipc_valid_object(&msq->q_perm)) {
 			err = -EIDRM;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/ipc/sem.c linux-libre-4.1.31-gnu/ipc/sem.c
--- linux-libre-4.1.30-gnu/ipc/sem.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/ipc/sem.c	2016-08-22 09:50:48.000000000 -0400
@@ -442,7 +442,7 @@ static inline struct sem_array *sem_obta
 static inline void sem_lock_and_putref(struct sem_array *sma)
 {
 	sem_lock(sma, NULL, -1);
-	ipc_rcu_putref(sma, ipc_rcu_free);
+	ipc_rcu_putref(sma, sem_rcu_free);
 }
 
 static inline void sem_rmid(struct ipc_namespace *ns, struct sem_array *s)
@@ -1385,7 +1385,7 @@ static int semctl_main(struct ipc_namesp
 			rcu_read_unlock();
 			sem_io = ipc_alloc(sizeof(ushort)*nsems);
 			if (sem_io == NULL) {
-				ipc_rcu_putref(sma, ipc_rcu_free);
+				ipc_rcu_putref(sma, sem_rcu_free);
 				return -ENOMEM;
 			}
 
@@ -1419,20 +1419,20 @@ static int semctl_main(struct ipc_namesp
 		if (nsems > SEMMSL_FAST) {
 			sem_io = ipc_alloc(sizeof(ushort)*nsems);
 			if (sem_io == NULL) {
-				ipc_rcu_putref(sma, ipc_rcu_free);
+				ipc_rcu_putref(sma, sem_rcu_free);
 				return -ENOMEM;
 			}
 		}
 
 		if (copy_from_user(sem_io, p, nsems*sizeof(ushort))) {
-			ipc_rcu_putref(sma, ipc_rcu_free);
+			ipc_rcu_putref(sma, sem_rcu_free);
 			err = -EFAULT;
 			goto out_free;
 		}
 
 		for (i = 0; i < nsems; i++) {
 			if (sem_io[i] > SEMVMX) {
-				ipc_rcu_putref(sma, ipc_rcu_free);
+				ipc_rcu_putref(sma, sem_rcu_free);
 				err = -ERANGE;
 				goto out_free;
 			}
@@ -1722,7 +1722,7 @@ static struct sem_undo *find_alloc_undo(
 	/* step 2: allocate new undo structure */
 	new = kzalloc(sizeof(struct sem_undo) + sizeof(short)*nsems, GFP_KERNEL);
 	if (!new) {
-		ipc_rcu_putref(sma, ipc_rcu_free);
+		ipc_rcu_putref(sma, sem_rcu_free);
 		return ERR_PTR(-ENOMEM);
 	}
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/kernel/auditsc.c linux-libre-4.1.31-gnu/kernel/auditsc.c
--- linux-libre-4.1.30-gnu/kernel/auditsc.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/kernel/auditsc.c	2016-08-22 09:50:48.000000000 -0400
@@ -73,6 +73,7 @@
 #include <linux/compat.h>
 #include <linux/ctype.h>
 #include <linux/string.h>
+#include <linux/uaccess.h>
 #include <uapi/linux/limits.h>
 
 #include "audit.h"
@@ -82,7 +83,8 @@
 #define AUDITSC_SUCCESS 1
 #define AUDITSC_FAILURE 2
 
-/* no execve audit message should be longer than this (userspace limits) */
+/* no execve audit message should be longer than this (userspace limits),
+ * see the note near the top of audit_log_execve_info() about this value */
 #define MAX_EXECVE_AUDIT_LEN 7500
 
 /* max length to print of cmdline/proctitle value during audit */
@@ -987,185 +989,178 @@ static int audit_log_pid_context(struct
 	return rc;
 }
 
-/*
- * to_send and len_sent accounting are very loose estimates.  We aren't
- * really worried about a hard cap to MAX_EXECVE_AUDIT_LEN so much as being
- * within about 500 bytes (next page boundary)
- *
- * why snprintf?  an int is up to 12 digits long.  if we just assumed when
- * logging that a[%d]= was going to be 16 characters long we would be wasting
- * space in every audit message.  In one 7500 byte message we can log up to
- * about 1000 min size arguments.  That comes down to about 50% waste of space
- * if we didn't do the snprintf to find out how long arg_num_len was.
- */
-static int audit_log_single_execve_arg(struct audit_context *context,
-					struct audit_buffer **ab,
-					int arg_num,
-					size_t *len_sent,
-					const char __user *p,
-					char *buf)
+static void audit_log_execve_info(struct audit_context *context,
+				  struct audit_buffer **ab)
 {
-	char arg_num_len_buf[12];
-	const char __user *tmp_p = p;
-	/* how many digits are in arg_num? 5 is the length of ' a=""' */
-	size_t arg_num_len = snprintf(arg_num_len_buf, 12, "%d", arg_num) + 5;
-	size_t len, len_left, to_send;
-	size_t max_execve_audit_len = MAX_EXECVE_AUDIT_LEN;
-	unsigned int i, has_cntl = 0, too_long = 0;
-	int ret;
-
-	/* strnlen_user includes the null we don't want to send */
-	len_left = len = strnlen_user(p, MAX_ARG_STRLEN) - 1;
-
-	/*
-	 * We just created this mm, if we can't find the strings
-	 * we just copied into it something is _very_ wrong. Similar
-	 * for strings that are too long, we should not have created
-	 * any.
-	 */
-	if (unlikely((len == -1) || len > MAX_ARG_STRLEN - 1)) {
-		WARN_ON(1);
-		send_sig(SIGKILL, current, 0);
-		return -1;
-	}
+	long len_max;
+	long len_rem;
+	long len_full;
+	long len_buf;
+	long len_abuf;
+	long len_tmp;
+	bool require_data;
+	bool encode;
+	unsigned int iter;
+	unsigned int arg;
+	char *buf_head;
+	char *buf;
+	const char __user *p = (const char __user *)current->mm->arg_start;
 
-	/* walk the whole argument looking for non-ascii chars */
-	do {
-		if (len_left > MAX_EXECVE_AUDIT_LEN)
-			to_send = MAX_EXECVE_AUDIT_LEN;
-		else
-			to_send = len_left;
-		ret = copy_from_user(buf, tmp_p, to_send);
-		/*
-		 * There is no reason for this copy to be short. We just
-		 * copied them here, and the mm hasn't been exposed to user-
-		 * space yet.
-		 */
-		if (ret) {
-			WARN_ON(1);
-			send_sig(SIGKILL, current, 0);
-			return -1;
-		}
-		buf[to_send] = '\0';
-		has_cntl = audit_string_contains_control(buf, to_send);
-		if (has_cntl) {
-			/*
-			 * hex messages get logged as 2 bytes, so we can only
-			 * send half as much in each message
-			 */
-			max_execve_audit_len = MAX_EXECVE_AUDIT_LEN / 2;
-			break;
-		}
-		len_left -= to_send;
-		tmp_p += to_send;
-	} while (len_left > 0);
+	/* NOTE: this buffer needs to be large enough to hold all the non-arg
+	 *       data we put in the audit record for this argument (see the
+	 *       code below) ... at this point in time 96 is plenty */
+	char abuf[96];
 
-	len_left = len;
+	/* NOTE: we set MAX_EXECVE_AUDIT_LEN to a rather arbitrary limit, the
+	 *       current value of 7500 is not as important as the fact that it
+	 *       is less than 8k, a setting of 7500 gives us plenty of wiggle
+	 *       room if we go over a little bit in the logging below */
+	WARN_ON_ONCE(MAX_EXECVE_AUDIT_LEN > 7500);
+	len_max = MAX_EXECVE_AUDIT_LEN;
 
-	if (len > max_execve_audit_len)
-		too_long = 1;
+	/* scratch buffer to hold the userspace args */
+	buf_head = kmalloc(MAX_EXECVE_AUDIT_LEN + 1, GFP_KERNEL);
+	if (!buf_head) {
+		audit_panic("out of memory for argv string");
+		return;
+	}
+	buf = buf_head;
 
-	/* rewalk the argument actually logging the message */
-	for (i = 0; len_left > 0; i++) {
-		int room_left;
+	audit_log_format(*ab, "argc=%d", context->execve.argc);
 
-		if (len_left > max_execve_audit_len)
-			to_send = max_execve_audit_len;
-		else
-			to_send = len_left;
+	len_rem = len_max;
+	len_buf = 0;
+	len_full = 0;
+	require_data = true;
+	encode = false;
+	iter = 0;
+	arg = 0;
+	do {
+		/* NOTE: we don't ever want to trust this value for anything
+		 *       serious, but the audit record format insists we
+		 *       provide an argument length for really long arguments,
+		 *       e.g. > MAX_EXECVE_AUDIT_LEN, so we have no choice but
+		 *       to use strncpy_from_user() to obtain this value for
+		 *       recording in the log, although we don't use it
+		 *       anywhere here to avoid a double-fetch problem */
+		if (len_full == 0)
+			len_full = strnlen_user(p, MAX_ARG_STRLEN) - 1;
 
-		/* do we have space left to send this argument in this ab? */
-		room_left = MAX_EXECVE_AUDIT_LEN - arg_num_len - *len_sent;
-		if (has_cntl)
-			room_left -= (to_send * 2);
-		else
-			room_left -= to_send;
-		if (room_left < 0) {
-			*len_sent = 0;
-			audit_log_end(*ab);
-			*ab = audit_log_start(context, GFP_KERNEL, AUDIT_EXECVE);
-			if (!*ab)
-				return 0;
-		}
+		/* read more data from userspace */
+		if (require_data) {
+			/* can we make more room in the buffer? */
+			if (buf != buf_head) {
+				memmove(buf_head, buf, len_buf);
+				buf = buf_head;
+			}
 
-		/*
-		 * first record needs to say how long the original string was
-		 * so we can be sure nothing was lost.
-		 */
-		if ((i == 0) && (too_long))
-			audit_log_format(*ab, " a%d_len=%zu", arg_num,
-					 has_cntl ? 2*len : len);
+			/* fetch as much as we can of the argument */
+			len_tmp = strncpy_from_user(&buf_head[len_buf], p,
+						    len_max - len_buf);
+			if (len_tmp == -EFAULT) {
+				/* unable to copy from userspace */
+				send_sig(SIGKILL, current, 0);
+				goto out;
+			} else if (len_tmp == (len_max - len_buf)) {
+				/* buffer is not large enough */
+				require_data = true;
+				/* NOTE: if we are going to span multiple
+				 *       buffers force the encoding so we stand
+				 *       a chance at a sane len_full value and
+				 *       consistent record encoding */
+				encode = true;
+				len_full = len_full * 2;
+				p += len_tmp;
+			} else {
+				require_data = false;
+				if (!encode)
+					encode = audit_string_contains_control(
+								buf, len_tmp);
+				/* try to use a trusted value for len_full */
+				if (len_full < len_max)
+					len_full = (encode ?
+						    len_tmp * 2 : len_tmp);
+				p += len_tmp + 1;
+			}
+			len_buf += len_tmp;
+			buf_head[len_buf] = '\0';
 
-		/*
-		 * normally arguments are small enough to fit and we already
-		 * filled buf above when we checked for control characters
-		 * so don't bother with another copy_from_user
-		 */
-		if (len >= max_execve_audit_len)
-			ret = copy_from_user(buf, p, to_send);
-		else
-			ret = 0;
-		if (ret) {
-			WARN_ON(1);
-			send_sig(SIGKILL, current, 0);
-			return -1;
+			/* length of the buffer in the audit record? */
+			len_abuf = (encode ? len_buf * 2 : len_buf + 2);
 		}
-		buf[to_send] = '\0';
-
-		/* actually log it */
-		audit_log_format(*ab, " a%d", arg_num);
-		if (too_long)
-			audit_log_format(*ab, "[%d]", i);
-		audit_log_format(*ab, "=");
-		if (has_cntl)
-			audit_log_n_hex(*ab, buf, to_send);
-		else
-			audit_log_string(*ab, buf);
 
-		p += to_send;
-		len_left -= to_send;
-		*len_sent += arg_num_len;
-		if (has_cntl)
-			*len_sent += to_send * 2;
-		else
-			*len_sent += to_send;
-	}
-	/* include the null we didn't log */
-	return len + 1;
-}
+		/* write as much as we can to the audit log */
+		if (len_buf > 0) {
+			/* NOTE: some magic numbers here - basically if we
+			 *       can't fit a reasonable amount of data into the
+			 *       existing audit buffer, flush it and start with
+			 *       a new buffer */
+			if ((sizeof(abuf) + 8) > len_rem) {
+				len_rem = len_max;
+				audit_log_end(*ab);
+				*ab = audit_log_start(context,
+						      GFP_KERNEL, AUDIT_EXECVE);
+				if (!*ab)
+					goto out;
+			}
 
-static void audit_log_execve_info(struct audit_context *context,
-				  struct audit_buffer **ab)
-{
-	int i, len;
-	size_t len_sent = 0;
-	const char __user *p;
-	char *buf;
+			/* create the non-arg portion of the arg record */
+			len_tmp = 0;
+			if (require_data || (iter > 0) ||
+			    ((len_abuf + sizeof(abuf)) > len_rem)) {
+				if (iter == 0) {
+					len_tmp += snprintf(&abuf[len_tmp],
+							sizeof(abuf) - len_tmp,
+							" a%d_len=%lu",
+							arg, len_full);
+				}
+				len_tmp += snprintf(&abuf[len_tmp],
+						    sizeof(abuf) - len_tmp,
+						    " a%d[%d]=", arg, iter++);
+			} else
+				len_tmp += snprintf(&abuf[len_tmp],
+						    sizeof(abuf) - len_tmp,
+						    " a%d=", arg);
+			WARN_ON(len_tmp >= sizeof(abuf));
+			abuf[sizeof(abuf) - 1] = '\0';
 
-	p = (const char __user *)current->mm->arg_start;
+			/* log the arg in the audit record */
+			audit_log_format(*ab, "%s", abuf);
+			len_rem -= len_tmp;
+			len_tmp = len_buf;
+			if (encode) {
+				if (len_abuf > len_rem)
+					len_tmp = len_rem / 2; /* encoding */
+				audit_log_n_hex(*ab, buf, len_tmp);
+				len_rem -= len_tmp * 2;
+				len_abuf -= len_tmp * 2;
+			} else {
+				if (len_abuf > len_rem)
+					len_tmp = len_rem - 2; /* quotes */
+				audit_log_n_string(*ab, buf, len_tmp);
+				len_rem -= len_tmp + 2;
+				/* don't subtract the "2" because we still need
+				 * to add quotes to the remaining string */
+				len_abuf -= len_tmp;
+			}
+			len_buf -= len_tmp;
+			buf += len_tmp;
+		}
 
-	audit_log_format(*ab, "argc=%d", context->execve.argc);
+		/* ready to move to the next argument? */
+		if ((len_buf == 0) && !require_data) {
+			arg++;
+			iter = 0;
+			len_full = 0;
+			require_data = true;
+			encode = false;
+		}
+	} while (arg < context->execve.argc);
 
-	/*
-	 * we need some kernel buffer to hold the userspace args.  Just
-	 * allocate one big one rather than allocating one of the right size
-	 * for every single argument inside audit_log_single_execve_arg()
-	 * should be <8k allocation so should be pretty safe.
-	 */
-	buf = kmalloc(MAX_EXECVE_AUDIT_LEN + 1, GFP_KERNEL);
-	if (!buf) {
-		audit_panic("out of memory for argv string");
-		return;
-	}
+	/* NOTE: the caller handles the final audit_log_end() call */
 
-	for (i = 0; i < context->execve.argc; i++) {
-		len = audit_log_single_execve_arg(context, ab, i,
-						  &len_sent, p, buf);
-		if (len <= 0)
-			break;
-		p += len;
-	}
-	kfree(buf);
+out:
+	kfree(buf_head);
 }
 
 static void show_special(struct audit_context *context, int *call_panic)
diff -druNp --no-dereference linux-libre-4.1.30-gnu/kernel/module.c linux-libre-4.1.31-gnu/kernel/module.c
--- linux-libre-4.1.30-gnu/kernel/module.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/kernel/module.c	2016-08-22 09:50:48.000000000 -0400
@@ -2451,13 +2451,18 @@ static inline void kmemleak_load_module(
 #endif
 
 #ifdef CONFIG_MODULE_SIG
-static int module_sig_check(struct load_info *info)
+static int module_sig_check(struct load_info *info, int flags)
 {
 	int err = -ENOKEY;
 	const unsigned long markerlen = sizeof(MODULE_SIG_STRING) - 1;
 	const void *mod = info->hdr;
 
-	if (info->len > markerlen &&
+	/*
+	 * Require flags == 0, as a module with version information
+	 * removed is no longer the module that was signed
+	 */
+	if (flags == 0 &&
+	    info->len > markerlen &&
 	    memcmp(mod + info->len - markerlen, MODULE_SIG_STRING, markerlen) == 0) {
 		/* We truncate the module to discard the signature */
 		info->len -= markerlen;
@@ -2476,7 +2481,7 @@ static int module_sig_check(struct load_
 	return err;
 }
 #else /* !CONFIG_MODULE_SIG */
-static int module_sig_check(struct load_info *info)
+static int module_sig_check(struct load_info *info, int flags)
 {
 	return 0;
 }
@@ -3277,7 +3282,7 @@ static int load_module(struct load_info
 	long err;
 	char *after_dashes;
 
-	err = module_sig_check(info);
+	err = module_sig_check(info, flags);
 	if (err)
 		goto free_copy;
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/.mailmap linux-libre-4.1.31-gnu/.mailmap
--- linux-libre-4.1.30-gnu/.mailmap	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/.mailmap	2016-08-22 09:50:48.000000000 -0400
@@ -80,6 +80,7 @@ Leonid I Ananiev <leonid.i.ananiev@intel
 Linas Vepstas <linas@austin.ibm.com>
 Mark Brown <broonie@sirena.org.uk>
 Matthieu CASTET <castet.matthieu@free.fr>
+Mauro Carvalho Chehab <mchehab@kernel.org> <maurochehab@gmail.com> <mchehab@infradead.org> <mchehab@redhat.com> <m.chehab@samsung.com> <mchehab@osg.samsung.com> <mchehab@s-opensource.com>
 Mayuresh Janorkar <mayur@ti.com>
 Michael Buesch <m@bues.ch>
 Michel Dänzer <michel@tungstengraphics.com>
diff -druNp --no-dereference linux-libre-4.1.30-gnu/MAINTAINERS linux-libre-4.1.31-gnu/MAINTAINERS
--- linux-libre-4.1.30-gnu/MAINTAINERS	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/MAINTAINERS	2016-08-22 09:50:48.000000000 -0400
@@ -1913,7 +1913,8 @@ F:	include/net/ax25.h
 F:	net/ax25/
 
 AZ6007 DVB DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -2318,7 +2319,8 @@ F:	Documentation/filesystems/btrfs.txt
 F:	fs/btrfs/
 
 BTTV VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -2882,7 +2884,8 @@ F:	drivers/media/common/cx2341x*
 F:	include/media/cx2341x*
 
 CX88 VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -3614,7 +3617,8 @@ F:	fs/ecryptfs/
 EDAC-CORE
 M:	Doug Thompson <dougthompson@xmission.com>
 M:	Borislav Petkov <bp@alien8.de>
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 T:	git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git#for-next
@@ -3665,7 +3669,8 @@ S:	Maintained
 F:	drivers/edac/e7xxx_edac.c
 
 EDAC-GHES
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
@@ -3693,21 +3698,24 @@ S:	Maintained
 F:	drivers/edac/i5000_edac.c
 
 EDAC-I5400
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
 F:	drivers/edac/i5400_edac.c
 
 EDAC-I7300
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
 F:	drivers/edac/i7300_edac.c
 
 EDAC-I7CORE
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
@@ -3750,7 +3758,8 @@ S:	Maintained
 F:	drivers/edac/r82600_edac.c
 
 EDAC-SBRIDGE
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
@@ -3810,7 +3819,8 @@ S:	Maintained
 F:	drivers/net/ethernet/ibm/ehea/
 
 EM28XX VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -6345,7 +6355,8 @@ S:	Maintained
 F:	drivers/media/radio/radio-maxiradio*
 
 MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 P:	LinuxTV.org Project
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
@@ -8502,7 +8513,8 @@ S:	Odd Fixes
 F:	drivers/media/i2c/saa6588*
 
 SAA7134 VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -8947,7 +8959,8 @@ S:	Maintained
 F:	drivers/media/radio/si4713/radio-usb-si4713.c
 
 SIANO DVB DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -9695,7 +9708,8 @@ S:	Maintained
 F:	drivers/media/i2c/tda9840*
 
 TEA5761 TUNER DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -9703,7 +9717,8 @@ S:	Odd fixes
 F:	drivers/media/tuners/tea5761.*
 
 TEA5767 TUNER DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -10042,7 +10057,8 @@ F:	include/linux/shmem_fs.h
 F:	mm/shmem.c
 
 TM6000 VIDEO4LINUX DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
@@ -10900,7 +10916,8 @@ S:	Maintained
 F:	arch/x86/vdso/
 
 XC2028/3028 TUNER DRIVER
-M:	Mauro Carvalho Chehab <mchehab@osg.samsung.com>
+M:	Mauro Carvalho Chehab <mchehab@s-opensource.com>
+M:	Mauro Carvalho Chehab <mchehab@kernel.org>
 L:	linux-media@vger.kernel.org
 W:	http://linuxtv.org
 T:	git git://linuxtv.org/media_tree.git
diff -druNp --no-dereference linux-libre-4.1.30-gnu/Makefile linux-libre-4.1.31-gnu/Makefile
--- linux-libre-4.1.30-gnu/Makefile	2016-08-10 01:47:02.000000000 -0400
+++ linux-libre-4.1.31-gnu/Makefile	2016-08-23 03:44:59.000000000 -0400
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 1
-SUBLEVEL = 30
+SUBLEVEL = 31
 EXTRAVERSION = -gnu
 NAME = Series 4800
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/mm/hugetlb.c linux-libre-4.1.31-gnu/mm/hugetlb.c
--- linux-libre-4.1.30-gnu/mm/hugetlb.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/mm/hugetlb.c	2016-08-22 09:50:48.000000000 -0400
@@ -1756,6 +1756,10 @@ static unsigned long set_max_huge_pages(
 		 * and reducing the surplus.
 		 */
 		spin_unlock(&hugetlb_lock);
+
+		/* yield cpu to avoid soft lockup */
+		cond_resched();
+
 		if (hstate_is_gigantic(h))
 			ret = alloc_fresh_gigantic_page(h, nodes_allowed);
 		else
diff -druNp --no-dereference linux-libre-4.1.30-gnu/net/bluetooth/l2cap_sock.c linux-libre-4.1.31-gnu/net/bluetooth/l2cap_sock.c
--- linux-libre-4.1.30-gnu/net/bluetooth/l2cap_sock.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/net/bluetooth/l2cap_sock.c	2016-08-22 09:50:48.000000000 -0400
@@ -927,7 +927,7 @@ static int l2cap_sock_setsockopt(struct
 			break;
 		}
 
-		if (get_user(opt, (u32 __user *) optval)) {
+		if (get_user(opt, (u16 __user *) optval)) {
 			err = -EFAULT;
 			break;
 		}
diff -druNp --no-dereference linux-libre-4.1.30-gnu/net/irda/af_irda.c linux-libre-4.1.31-gnu/net/irda/af_irda.c
--- linux-libre-4.1.30-gnu/net/irda/af_irda.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/net/irda/af_irda.c	2016-08-22 09:50:48.000000000 -0400
@@ -1024,8 +1024,11 @@ static int irda_connect(struct socket *s
 	}
 
 	/* Check if we have opened a local TSAP */
-	if (!self->tsap)
-		irda_open_tsap(self, LSAP_ANY, addr->sir_name);
+	if (!self->tsap) {
+		err = irda_open_tsap(self, LSAP_ANY, addr->sir_name);
+		if (err)
+			goto out;
+	}
 
 	/* Move to connecting socket, start sending Connect Requests */
 	sock->state = SS_CONNECTING;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/net/netfilter/nf_nat_redirect.c linux-libre-4.1.31-gnu/net/netfilter/nf_nat_redirect.c
--- linux-libre-4.1.30-gnu/net/netfilter/nf_nat_redirect.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/net/netfilter/nf_nat_redirect.c	2016-08-22 09:50:48.000000000 -0400
@@ -55,7 +55,7 @@ nf_nat_redirect_ipv4(struct sk_buff *skb
 
 		rcu_read_lock();
 		indev = __in_dev_get_rcu(skb->dev);
-		if (indev != NULL) {
+		if (indev && indev->ifa_list) {
 			ifa = indev->ifa_list;
 			newdst = ifa->ifa_local;
 		}
diff -druNp --no-dereference linux-libre-4.1.30-gnu/net/netlabel/netlabel_kapi.c linux-libre-4.1.31-gnu/net/netlabel/netlabel_kapi.c
--- linux-libre-4.1.30-gnu/net/netlabel/netlabel_kapi.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/net/netlabel/netlabel_kapi.c	2016-08-22 09:50:48.000000000 -0400
@@ -824,7 +824,11 @@ socket_setattr_return:
  */
 void netlbl_sock_delattr(struct sock *sk)
 {
-	cipso_v4_sock_delattr(sk);
+	switch (sk->sk_family) {
+	case AF_INET:
+		cipso_v4_sock_delattr(sk);
+		break;
+	}
 }
 
 /**
@@ -987,7 +991,11 @@ req_setattr_return:
 */
 void netlbl_req_delattr(struct request_sock *req)
 {
-	cipso_v4_req_delattr(req);
+	switch (req->rsk_ops->family) {
+	case AF_INET:
+		cipso_v4_req_delattr(req);
+		break;
+	}
 }
 
 /**
diff -druNp --no-dereference linux-libre-4.1.30-gnu/scripts/recordmcount.c linux-libre-4.1.31-gnu/scripts/recordmcount.c
--- linux-libre-4.1.30-gnu/scripts/recordmcount.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/scripts/recordmcount.c	2016-08-22 09:50:48.000000000 -0400
@@ -33,10 +33,17 @@
 #include <string.h>
 #include <unistd.h>
 
+/*
+ * glibc synced up and added the metag number but didn't add the relocations.
+ * Work around this in a crude manner for now.
+ */
 #ifndef EM_METAG
-/* Remove this when these make it to the standard system elf.h. */
 #define EM_METAG      174
+#endif
+#ifndef R_METAG_ADDR32
 #define R_METAG_ADDR32                   2
+#endif
+#ifndef R_METAG_NONE
 #define R_METAG_NONE                     3
 #endif
 
diff -druNp --no-dereference linux-libre-4.1.30-gnu/sound/core/timer.c linux-libre-4.1.31-gnu/sound/core/timer.c
--- linux-libre-4.1.30-gnu/sound/core/timer.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/sound/core/timer.c	2016-08-22 09:50:48.000000000 -0400
@@ -1247,6 +1247,7 @@ static void snd_timer_user_ccallback(str
 		tu->tstamp = *tstamp;
 	if ((tu->filter & (1 << event)) == 0 || !tu->tread)
 		return;
+	memset(&r1, 0, sizeof(r1));
 	r1.event = event;
 	r1.tstamp = *tstamp;
 	r1.val = resolution;
@@ -1281,6 +1282,7 @@ static void snd_timer_user_tinterrupt(st
 	}
 	if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) &&
 	    tu->last_resolution != resolution) {
+		memset(&r1, 0, sizeof(r1));
 		r1.event = SNDRV_TIMER_EVENT_RESOLUTION;
 		r1.tstamp = tstamp;
 		r1.val = resolution;
@@ -1746,6 +1748,7 @@ static int snd_timer_user_params(struct
 	if (tu->timeri->flags & SNDRV_TIMER_IFLG_EARLY_EVENT) {
 		if (tu->tread) {
 			struct snd_timer_tread tread;
+			memset(&tread, 0, sizeof(tread));
 			tread.event = SNDRV_TIMER_EVENT_EARLY;
 			tread.tstamp.tv_sec = 0;
 			tread.tstamp.tv_nsec = 0;
diff -druNp --no-dereference linux-libre-4.1.30-gnu/sound/hda/array.c linux-libre-4.1.31-gnu/sound/hda/array.c
--- linux-libre-4.1.30-gnu/sound/hda/array.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/sound/hda/array.c	2016-08-22 09:50:48.000000000 -0400
@@ -21,13 +21,15 @@ void *snd_array_new(struct snd_array *ar
 		return NULL;
 	if (array->used >= array->alloced) {
 		int num = array->alloced + array->alloc_align;
+		int oldsize = array->alloced * array->elem_size;
 		int size = (num + 1) * array->elem_size;
 		void *nlist;
 		if (snd_BUG_ON(num >= 4096))
 			return NULL;
-		nlist = krealloc(array->list, size, GFP_KERNEL | __GFP_ZERO);
+		nlist = krealloc(array->list, size, GFP_KERNEL);
 		if (!nlist)
 			return NULL;
+		memset(nlist + oldsize, 0, size - oldsize);
 		array->list = nlist;
 		array->alloced = num;
 	}
diff -druNp --no-dereference linux-libre-4.1.30-gnu/sound/pci/hda/hda_intel.c linux-libre-4.1.31-gnu/sound/pci/hda/hda_intel.c
--- linux-libre-4.1.30-gnu/sound/pci/hda/hda_intel.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/sound/pci/hda/hda_intel.c	2016-08-22 09:50:48.000000000 -0400
@@ -2114,6 +2114,8 @@ static const struct pci_device_id azx_id
 	{ PCI_DEVICE(0x1022, 0x780d),
 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
 	/* ATI HDMI */
+	{ PCI_DEVICE(0x1002, 0x0002),
+	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
 	{ PCI_DEVICE(0x1002, 0x1308),
 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
 	{ PCI_DEVICE(0x1002, 0x157a),
diff -druNp --no-dereference linux-libre-4.1.30-gnu/sound/pci/hda/patch_realtek.c linux-libre-4.1.31-gnu/sound/pci/hda/patch_realtek.c
--- linux-libre-4.1.30-gnu/sound/pci/hda/patch_realtek.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/sound/pci/hda/patch_realtek.c	2016-08-22 09:50:48.000000000 -0400
@@ -4584,6 +4584,71 @@ static void alc290_fixup_mono_speakers(s
 	}
 }
 
+static void alc298_fixup_speaker_volume(struct hda_codec *codec,
+					const struct hda_fixup *fix, int action)
+{
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+		/* The speaker is routed to the Node 0x06 by a mistake, as a result
+		   we can't adjust the speaker's volume since this node does not has
+		   Amp-out capability. we change the speaker's route to:
+		   Node 0x02 (Audio Output) -> Node 0x0c (Audio Mixer) -> Node 0x17 (
+		   Pin Complex), since Node 0x02 has Amp-out caps, we can adjust
+		   speaker's volume now. */
+
+		hda_nid_t conn1[1] = { 0x0c };
+		snd_hda_override_conn_list(codec, 0x17, 1, conn1);
+	}
+}
+
+/* Hook to update amp GPIO4 for automute */
+static void alc280_hp_gpio4_automute_hook(struct hda_codec *codec,
+					  struct hda_jack_callback *jack)
+{
+	struct alc_spec *spec = codec->spec;
+
+	snd_hda_gen_hp_automute(codec, jack);
+	/* mute_led_polarity is set to 0, so we pass inverted value here */
+	alc_update_gpio_led(codec, 0x10, !spec->gen.hp_jack_present);
+}
+
+/* Manage GPIOs for HP EliteBook Folio 9480m.
+ *
+ * GPIO4 is the headphone amplifier power control
+ * GPIO3 is the audio output mute indicator LED
+ */
+
+static void alc280_fixup_hp_9480m(struct hda_codec *codec,
+				  const struct hda_fixup *fix,
+				  int action)
+{
+	struct alc_spec *spec = codec->spec;
+	static const struct hda_verb gpio_init[] = {
+		{ 0x01, AC_VERB_SET_GPIO_MASK, 0x18 },
+		{ 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x18 },
+		{}
+	};
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+		/* Set the hooks to turn the headphone amp on/off
+		 * as needed
+		 */
+		spec->gen.vmaster_mute.hook = alc_fixup_gpio_mute_hook;
+		spec->gen.hp_automute_hook = alc280_hp_gpio4_automute_hook;
+
+		/* The GPIOs are currently off */
+		spec->gpio_led = 0;
+
+		/* GPIO3 is connected to the output mute LED,
+		 * high is on, low is off
+		 */
+		spec->mute_led_polarity = 0;
+		spec->gpio_mute_led_mask = 0x08;
+
+		/* Initialize GPIO configuration */
+		snd_hda_add_verbs(codec, gpio_init);
+	}
+}
+
 /* for hda_fixup_thinkpad_acpi() */
 #include "thinkpad_helper.c"
 
@@ -4665,6 +4730,7 @@ enum {
 	ALC286_FIXUP_HP_GPIO_LED,
 	ALC280_FIXUP_HP_GPIO2_MIC_HOTKEY,
 	ALC280_FIXUP_HP_DOCK_PINS,
+	ALC280_FIXUP_HP_9480M,
 	ALC288_FIXUP_DELL_HEADSET_MODE,
 	ALC288_FIXUP_DELL1_MIC_NO_PRESENCE,
 	ALC288_FIXUP_DELL_XPS_13_GPIO6,
@@ -4683,6 +4749,7 @@ enum {
 	ALC280_FIXUP_HP_HEADSET_MIC,
 	ALC221_FIXUP_HP_FRONT_MIC,
 	ALC292_FIXUP_TPT460,
+	ALC298_FIXUP_SPK_VOLUME,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -5199,6 +5266,10 @@ static const struct hda_fixup alc269_fix
 		.chained = true,
 		.chain_id = ALC280_FIXUP_HP_GPIO4
 	},
+	[ALC280_FIXUP_HP_9480M] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc280_fixup_hp_9480m,
+	},
 	[ALC288_FIXUP_DELL_HEADSET_MODE] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_headset_mode_dell_alc288,
@@ -5334,6 +5405,12 @@ static const struct hda_fixup alc269_fix
 		.chained = true,
 		.chain_id = ALC293_FIXUP_LENOVO_SPK_NOISE,
 	},
+	[ALC298_FIXUP_SPK_VOLUME] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc298_fixup_speaker_volume,
+		.chained = true,
+		.chain_id = ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -5380,6 +5457,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13 9350", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
 	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, 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),
@@ -5407,6 +5485,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x103c, 0x22b7, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x22bf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x22cf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+	SND_PCI_QUIRK(0x103c, 0x22db, "HP", ALC280_FIXUP_HP_9480M),
 	SND_PCI_QUIRK(0x103c, 0x22dc, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
 	SND_PCI_QUIRK(0x103c, 0x22fb, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
 	/* ALC290 */
@@ -5700,6 +5779,32 @@ static const struct snd_hda_pin_quirk al
 		{0x1e, 0x411111f0},
 		{0x21, 0x0221103f}),
 	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0x40000000},
+		{0x14, 0x90170130},
+		{0x1b, 0x02011020},
+		{0x21, 0x0221103f}),
+	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x14, 0x90170150},
+		{0x17, 0x411111f0},
+		{0x18, 0x411111f0},
+		{0x19, 0x411111f0},
+		{0x1a, 0x411111f0},
+		{0x1b, 0x02011020},
+		{0x1d, 0x4054c029},
+		{0x1e, 0x411111f0},
+		{0x21, 0x0221105f}),
+	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0x40000000},
+		{0x14, 0x90170110},
+		{0x17, 0x411111f0},
+		{0x18, 0x411111f0},
+		{0x19, 0x411111f0},
+		{0x1a, 0x411111f0},
+		{0x1b, 0x01014020},
+		{0x1d, 0x4054c029},
+		{0x1e, 0x411111f0},
+		{0x21, 0x0221101f}),
+	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
 		{0x12, 0x90a60160},
 		{0x14, 0x90170120},
 		{0x17, 0x90170140},
diff -druNp --no-dereference linux-libre-4.1.30-gnu/virt/kvm/kvm_main.c linux-libre-4.1.31-gnu/virt/kvm/kvm_main.c
--- linux-libre-4.1.30-gnu/virt/kvm/kvm_main.c	2016-08-08 22:11:45.000000000 -0400
+++ linux-libre-4.1.31-gnu/virt/kvm/kvm_main.c	2016-08-22 09:50:48.000000000 -0400
@@ -134,6 +134,7 @@ int vcpu_load(struct kvm_vcpu *vcpu)
 	put_cpu();
 	return 0;
 }
+EXPORT_SYMBOL_GPL(vcpu_load);
 
 void vcpu_put(struct kvm_vcpu *vcpu)
 {
@@ -143,6 +144,7 @@ void vcpu_put(struct kvm_vcpu *vcpu)
 	preempt_enable();
 	mutex_unlock(&vcpu->mutex);
 }
+EXPORT_SYMBOL_GPL(vcpu_put);
 
 static void ack_flush(void *_completed)
 {
